diff --git a/curl/CHANGES b/curl/CHANGES new file mode 100644 index 0000000..25ab523 --- /dev/null +++ b/curl/CHANGES @@ -0,0 +1,7491 @@ + _ _ ____ _ + ___| | | | _ \| | + / __| | | | |_) | | + | (__| |_| | _ <| |___ + \___|\___/|_| \_\_____| + + Changelog + +Version 7.83.1 (11 May 2022) + +Daniel Stenberg (11 May 2022) +- RELEASE-NOTES: synced + + curl 7.83.1 release + +- THANKS: added contributors from 7.83.1 + +- zuul: fix the ngtcp2-gnutls build + + Add packages and tweak the configure options. + + Use the GnuTLS 3.7.4 branch (not main). + + Closes #8829 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: add ca-fallback support for OpenSSL backend + + Closes #8828 + +- url: check SSH config match on connection reuse + + CVE-2022-27782 + + Reported-by: Harry Sintonen + Bug: https://curl.se/docs/CVE-2022-27782.html + Closes #8825 + +- tls: check more TLS details for connection reuse + + CVE-2022-27782 + + Reported-by: Harry Sintonen + Bug: https://curl.se/docs/CVE-2022-27782.html + Closes #8825 + +- cookies: make bad_domain() not consider a trailing dot fine + + The check for a dot in the domain must not consider a single trailing + dot to be fine, as then TLD + trailing dot is fine and curl will accept + setting cookies for it. + + CVE-2022-27779 + + Reported-by: Axel Chong + Bug: https://curl.se/docs/CVE-2022-27779.html + Closes #8820 + +- test977: reproduce ability to set cookie on TLD + + When PSL is not enabled + +- scripts/contributors.sh: correct the copyright range + +- docs/RELEASE-PROCEDURE.md: refreshed and adjsuted the release dates + +- test379: verify --remove-on-error with --no-clobber + +- post_per_transfer: remove the updated file name + + When --remove-on-error is used with --no-clobber, it might have an + updated file name to remove. + + Bug: https://curl.se/docs/CVE-2022-27778.html + + CVE-2022-27778 + + Reported-by: Harry Sintonen + + Closes #8824 + +- hsts: ignore trailing dots when comparing hosts names + + CVE-2022-30115 + + Reported-by: Axel Chong + Bug: https://curl.se/docs/CVE-2022-30115.html + Closes #8821 + +- test440/441: verify HSTS with trailing dots + +- libtest/lib1560: verify the host name percent decode fix + +- urlapi: reject percent-decoding host name into separator bytes + + CVE-2022-27780 + + Reported-by: Axel Chong + Bug: https://curl.se/docs/CVE-2022-27780.html + Closes #8826 + +- nss: return error if seemingly stuck in a cert loop + + CVE-2022-27781 + + Reported-by: Florian Kohnhäuser + Bug: https://curl.se/docs/CVE-2022-27781.html + Closes #8822 + +- test412/413: verify alt-svc with trailing dots + +- altsvc: fix host name matching for trailing dots + + Closes #8819 + +- [Garrett Squire brought this change] + + hyper: fix test 357 + + This change fixes the hyper API such that PUT requests that receive a + 417 response can retry without the Expect header. + + Closes #8811 + +- [Harry Sintonen brought this change] + + sectransp: bail out if SSLSetPeerDomainName fails + + Before the code would just warn about SSLSetPeerDomainName() errors. + + Closes #8798 + +- http_proxy/hyper: handle closed connections + + Enable test 1021 for hyper builds. + + Patched-by: Prithvi MK + Fixes #8700 + Closes #8806 + +- KNOWN_BUGS: timeout when reusing a http3 connection + + Closes #8764 + +- KNOWN_BUGS: configure --with-ca-fallback is not supported by h3 + + Closes #8696 + +- [Ryan Schmidt brought this change] + + Makefile: fix "make ca-firefox" + + Closes #8804 + +Daniel Gustafsson (5 May 2022) +- tests: fix markdown formatting in README + + The asterisk in the abbreviation *NIX (for UNIX/Linux) needs to be + escaped to not mean start of italic formatting. This is consistent + with docs/RELEASE-PROCEDURE.md. + + Closes: #8802 + Reviewed-by: Daniel Stenberg + +Daniel Stenberg (5 May 2022) +- TODO: expand on "Expose tried IP addresses that failed" + + Ref: #8794 + +Daniel Gustafsson (5 May 2022) +- [Fabian Keil brought this change] + + tests/server: declare variable 'reqlogfile' static + + Silences the warning: + + CC socksd-socksd.o + socksd.c:143:13: warning: no previous extern declaration for + non-static variable 'reqlogfile' [-Wmissing-variable-declarations] + const char *reqlogfile = DEFAULT_REQFILE; + ^ + socksd.c:143:7: note: declare 'static' if the variable is not + intended to be used outside of this translation unit + const char *reqlogfile = DEFAULT_REQFILE; + ^ + 1 warning generated. + + ... when compiling with clang 13. + + Closes: #8799 + Reviewed-by: Daniel Gustafsson + +- HTTP-COOKIES: add missing CURLOPT_COOKIESESSION + + Commit 980a47b42 added support for ignoring session cookies, but it + was never added to the documentation. + + Closes: #8795 + Reviewed-by: Daniel Stenberg + +Daniel Stenberg (5 May 2022) +- docs/THANKS: remove name duplicate + +- [Philip H brought this change] + + .mailmap: update + + Closes #8800 + +Jay Satiro (5 May 2022) +- mbedtls: fix some error messages + + Prior to this change some of the error messages misidentified the + function that failed. + +Daniel Stenberg (5 May 2022) +- RELEASE-NOTES: synced + +- [Sergey Markelov brought this change] + + x509asn1: make do_pubkey handle EC public keys + + Closes #8757 + +- [Harry Sintonen brought this change] + + mbedtls: bail out if rng init fails + + There was a failf() call but no actual error return. + + Closes #8796 + +- [Sergey Markelov brought this change] + + urlapi: address (harmless) UndefinedBehavior sanitizer warning + + `while(i--)` causes runtime error: unsigned integer overflow: 0 - 1 + cannot be represented in type 'size_t' (aka 'unsigned long') + + Closes #8797 + +- [Fabian Keil brought this change] + + test{898,974,976}: add 'HTTP proxy' keywords + + ... so the tests can be automatically skipped when + testing external HTTP proxies like Privoxy. + + Closes #8791 + +- [Harry Sintonen brought this change] + + gskit_connect_step1: fixed bogus setsockopt calls + + setsockopt takes a reference to value, not value. With the current + code this just leads to -1 return value with errno EFAULT. + + Closes #8793 + +- CURLOPT_SSH_AUTH_TYPES.3: fix the default + + The default is all possible methods. + + Closes #8792 + +- CURLOPT_DOH_URL.3: mention the known bug + + It is mostly duplicating info from KNOWN_BUGS but make it easier to find + for users of this option. + + Closes #8790 + +- CURLOPT_HSTS*FUNCTION.3: document the involved structs as well + + Reviewed-By: Daniel Gustafsson + Closes #8788 + +- docs/SECURITY-PROCESS.md: "Visible command line arguments" + +- SECURITY-PROCESS: mention "URL inconsistencies" + + ... as common problems that are *not* vulns. + +Daniel Gustafsson (2 May 2022) +- contributors: strip off final comma + + The final row of contributors should not end with a comma as it's the + end of the list. + + Closes: #8785 + Reviewed-by: Daniel Stenberg + +Daniel Stenberg (2 May 2022) +- [Philip H brought this change] + + misc: use "autoreconf -fi" instead buildconf + + Signed-off-by: Philip H <47042125+pheiduck@users.noreply.github.com> + Closes #8777 + +Daniel Gustafsson (2 May 2022) +- [Philip H brought this change] + + cirrus: Use pip for Python packages on FreeBSD + + Using pip instead of easy_install is more in line with how other + CI images are being maintained. + + Closes: #8783 + Reviewed-by: Daniel Gustafsson + +- [Philip H brought this change] + + cirrus: Update to FreeBSD 12.3 + + Closes: #8783 + Reviewed-by: Daniel Gustafsson + +- tool_getparam: simplify conditional statement + + param_place cannot be NULL here since we immediately efter this block + perform arithmetic on it (and use it in order to get here) so there is + little reason to check. + + Closes: #8786 + Reviewed-by: Daniel Stenberg + +- RELEASE-NOTES: synced + +- gskit: remove unused function set_callback + + This function has been unused since the initial commit of the GSKit + backend in 0eba02fd4. The motivation for the code was getting the + whole certificate chain: the only place where the latter is available + is as a callback parameter. Unfortunately it is not possible to pass + a user pointer to this callback, which precludes the possibility to + associate the cert chain with a data/conn structure. + + For further information, search for pgsk_cert_validation_callback on: + https://www.ibm.com/docs/api/v1/content/ssw_ibm_i_71/apis/gsk_attribute_set_callback.htm + + As the upstream library never added a parameter like that to the API, + we give up the wait and remove the dead code. + + Closes: #8782 + Reviewed-by: Patrick Monnerat + +- curl: free resource in error path + + If the new filename cannot be generated due to memory pressure, free + the allocated aname on the way out to avoid a small leak. + + Closes: #8770 + Reviewed-by: Daniel Stenberg + +- curl: guard against size_t wraparound in no-clobber code + + When generating the new filename, make sure we aren't overflowing the + size_t limit when calculating the new length. This is mostly academic + but good code hygeine nonetheless. + + Closes: #8771 + Reviewed-by: Daniel Stenberg + +Daniel Stenberg (30 Apr 2022) +- gha: build msh3 + + Closes #8779 + +- scripts/cijobs.pl: try "current branch" first then "master" + +- [Yusuke Nakamura brought this change] + + msh3: get msh3 version from MsH3Version + + Closes #8762 + +- [Yusuke Nakamura brought this change] + + msh3: psss remote_port to MsH3ConnectionOpen + + MsH3 supported additional "Port" parameter to connect not hosted on + 443 port QUIC website. + + * https://github.com/nibanks/msh3/releases/tag/v0.3.0 + * https://github.com/nibanks/msh3/pull/37 + + Closes #8762 + +- [Christian Weisgerber brought this change] + + openssl: define HAVE_SSL_CTX_SET_EC_CURVES for libressl + + SSL_CTX_set1_curves_list() has been available since LibreSSL 2.5.3, + released five years ago. + + Bug: https://curl.se/mail/lib-2022-04/0059.html + Closes #8773 + +- http: move Curl_allow_auth_to_host() + + It was mistakenly put within the CURL_DISABLE_HTTP_AUTH #ifdef + + Reported-by: Michael Olbrich + Fixes #8772 + Closes #8775 + +Daniel Gustafsson (29 Apr 2022) +- msh3: print boolean value as text representation + + Print the boolean value as its string representation instead of with + %hhu which isn't a format we typically use. + + Closes: #8763 + Reviewed-by: Nick Banks + +Daniel Stenberg (29 Apr 2022) +- data/test376: set a proper name + +- GHA/mbedtls: enabled nghttp2 in the build + + Closes #8767 + +- mbedtls: fix compile when h2-enabled + + Fixes #8766 + Reported-by: LigH-de on github + Closes #8768 + +- RELEASE-NOTES: synced + + bumped curlver to 7.83.1-dev + +- SECURITY-PROCESS: extended + + Also clarify BUG-BOUNTY.md with IBB details. + + Closes #8754 + +- [Adam Rosenfield brought this change] + + conn: fix typo 'connnection' -> 'connection' in two function names + + Closes #8759 + +Version 7.83.0 (27 Apr 2022) + +Daniel Stenberg (27 Apr 2022) +- RELEASE-NOTES: synced + + The 7.83.0 release + +- docs/THANKS: contributors from 7.83.0 + +- test 898/974/976: require proxy to run + + Fixes #8755 + Reported-by: Marc Hörsken + Closes #8756 + +- gnutls: don't leak the SRP credentials in redirects + + Follow-up to 620ea21410030 and 139a54ed0a172a + + Reported-by: Harry Sintonen + Closes #8752 + +- CURLOPT*TLSAUTH: they only work with OpenSSL or GnuTLS + + Closes #8753 + +- openssl: don't leak the SRP credentials in redirects either + + Follow-up to 620ea21410030 + + Reported-by: Harry Sintonen + Closes #8751 + +- [Liam Warfield brought this change] + + hyper: fix tests 580 and 581 for hyper + + Hyper now has the ability to preserve header order. This commit adds a + few lines setting the connection options for this feature. + + Related to issue #8617 + Closes #8707 + +- conncache: remove name arg from Curl_conncache_find_bundle + + To simplify, and also since the returned name is not the full actual + name used for the check. The port number and zone id is also involved, + so just showing the name is misleading. + + Closes #8750 + +- tests: verify the fix for CVE-2022-27774 + + - Test 973 redirects from HTTP to FTP, clear auth + - Test 974 redirects from HTTP to HTTP different port, clear auth + - Test 975 redirects from HTTP to FTP, permitted to keep auth + - Test 976 redirects from HTTP to HTTP different port, permitted to keep + auth + +- transfer: redirects to other protocols or ports clear auth + + ... unless explicitly permitted. + + Bug: https://curl.se/docs/CVE-2022-27774.html + Reported-by: Harry Sintonen + Closes #8748 + +- connect: store "conn_remote_port" in the info struct + + To make it available after the connection ended. + +- cookie.d: clarify when cookies are always sent + +- test898: verify the fix for CVE-2022-27776 + + Do not pass on Authorization headers on redirects to another port + +- http: avoid auth/cookie on redirects same host diff port + + CVE-2022-27776 + + Reported-by: Harry Sintonen + Bug: https://curl.se/docs/CVE-2022-27776.html + Closes #8749 + +- libssh2: make the md5 comparison fail if wrong length + + Making it just skip the check unless exactly 32 is too brittle. Even if + the docs says it needs to be exactly 32, it is be safer to make the + comparison fail here instead. + + Reported-by: Harry Sintonen + Bug: https://hackerone.com/reports/1549461 + Closes #8745 + +- conncache: include the zone id in the "bundle" hashkey + + Make connections to two separate IPv6 zone ids create separate + connections. + + Reported-by: Harry Sintonen + Bug: https://curl.se/docs/CVE-2022-27775.html + Closes #8747 + +- [Patrick Monnerat brought this change] + + url: check sasl additional parameters for connection reuse. + + Also move static function safecmp() as non-static Curl_safecmp() since + its purpose is needed at several places. + + Bug: https://curl.se/docs/CVE-2022-22576.html + + CVE-2022-22576 + + Closes #8746 + +- libssh2: compare sha256 strings case sensitively + + Reported-by: Harry Sintonen + Bug: https://hackerone.com/reports/1549435 + Closes #8744 + +- tool_getparam: error out on missing -K file + + Add test 411 to verify. + + Reported-by: Median Median Stride + Bug: https://hackerone.com/reports/1542881 + Closes #8731 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: deal with sub-millisecond timeout + + Closes #8738 + +- misc: update copyright year ranges + +- c_escape: escape '?' in generated --libcurl code + + In order to avoid the risk of it being used in an accidental trigraph in + the generated code. + + Reported-by: Harry Sintonen + Bug: https://hackerone.com/reports/1548535 + Closes #8742 + +- [Philip H brought this change] + + mlc: curl.zuul.vexxhost.dev is reachable again + + remove it from ignorelist for linkcheck + + Closes #8736 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: avoid busy loop in low CWND situation + + Closes #8739 + +- TODO: telnet - exit immediately upon connection if stdin is /dev/null + + Suggested-by: Robin A. Meade + URL: https://curl.se/mail/archive-2022-04/0027.html + +- [Kushal Das brought this change] + + docs: updates spellings with full words + + Closes #8730 + +- tests/FILEFORMAT.md: spellfix + +Daniel Gustafsson (21 Apr 2022) +- misc: fix typos + + Fix a few random typos is comments and workflow names. + +- macos: fix .plist installation into framework + + The copy command introduced in e498a9b1f had leftover '>' from the + previous sed command it replaced, which broke its syntax. Fix by + removing. + + Reported-by: Emanuele Torre + +Daniel Stenberg (21 Apr 2022) +- [Christopher Degawa brought this change] + + Makefile: fix ca-bundle due to mk-ca-bundle.pl being moved + + The script was moved in 8e22fc68e7dda43e9f but the lines that called it + was not changed to reflect it's new position + + Signed-off-by: Christopher Degawa + + Closes #8728 + +Daniel Gustafsson (20 Apr 2022) +- macos: set .plist version in autoconf + + Set the libcurl version in libcurl.plist like how libcurl.vers is + created. + + Closes: #8692 + Reviewed-by: Daniel Stenberg + Reviewed-by: Nick Zitzmann + +- cookies: Improve errorhandling for reading cookiefile + + The existing programming had some issues with errorhandling for reading + the cookie file. If the file failed to open, we would silently ignore it + and continue as if there was no file (or stdin) passed. In this case, we + would also call fclose() on the NULL FILE pointer, which is undefined + behavior. Fix by ensuring that the FILE pointer is set before calling + fclose on it, and issue a warning in case the file cannot be opened. + Erroring out on nonexisting file would break backwards compatibility of + very old behavior so we can't really go there. + + Closes: #8699 + Reviewed-by: Daniel Stenberg + Reviewed-by: Jay Satiro + +Daniel Stenberg (20 Apr 2022) +- libcurl-tutorial.3: spellfix and minor polish + +- CURLINFO_PRIMARY_PORT.3: spellfix + + Reported-by: Patrick Monnerat + +- [Jay Dommaschk brought this change] + + libssh: fix double close + + libssh closes the socket in ssh_diconnect() so make sure that libcurl + does not also close it. + + Fixes #8708 + Closes #8718 + +Jay Satiro (20 Apr 2022) +- [Gisle Vanem brought this change] + + unit1620: call global_init before calling Curl_open + + Curl_open calls the resolver init and on Windows if the resolver backend + is c-ares then the Windows sockets library (winsock) must already have + been initialized (via global init). + + Ref: https://github.com/curl/curl/pull/8540#issuecomment-1059771800 + + Closes https://github.com/curl/curl/pull/8719 + +Daniel Stenberg (19 Apr 2022) +- CURLINFO_PRIMARY_PORT.3: clarify which port this is + + As it was not entirely clear previously. + + Closes #8725 + +- CURLOPT_UNRESTRICTED_AUTH.3: extended explanation + + Include details about Authentication headers. + + Reported-by: Brad Spencer + Fixes #8724 + Closes #8726 + +- .github/workflows/macos.yml: add a libssh job with c-ares + + ... to enable the memdebug system + + Closes #8720 + +- RELEASE-NOTES: synced + +Jay Satiro (17 Apr 2022) +- [Gisle Vanem brought this change] + + docs/HTTP3.md: fix typo + + also fix msh3 section formatting + + Ref: https://github.com/curl/curl/commit/37492ebb#r70980087 + +Marc Hoersken (17 Apr 2022) +- timediff.[ch]: add curlx helper functions for timeval conversions + + Also move timediff_t definitions from timeval.h to timediff.h and + then make timeval.h include the new standalone-capable timediff.h. + + Reviewed-by: Jay Satiro + Reviewed-by: Daniel Stenberg + + Supersedes #5888 + Closes #8595 + +Daniel Stenberg (17 Apr 2022) +- [Balakrishnan Balasubramanian brought this change] + + tests: refactor server/socksd.c to support --unix-socket + + Closes #8687 + +- [Emanuele Torre brought this change] + + tool_paramhlp: use feof(3) to identify EOF correctly when using fread(3) + + This loop was using the number of bytes read from the file as condition + to keep reading. + + From Linux's fread(3) man page: + > On success, fread() and fwrite() return the number of items read or + > written. This number equals the number of bytes transferred only when + > size is 1. If an error occurs, or the end of the file is reached, the + > return value is a short item count (or zero). + > + > The file position indicator for the stream is advanced by the number + > of bytes successfully read or written. + > + > fread() does not distinguish between end-of-file and error, and + > callers must use feof(3) and ferror(3) to determine which occurred. + + This means that nread!=0 doesn't make much sense as an end condition for + the loop: nread==0 doesn't necessarily mean that EOF has been reached or + an error has occured (but that is usually the case) and nread!=0 doesn't + necessarily mean that EOF has not been reached or that no read errors + have occured. feof(3) and ferror(3) should be uses when using fread(3). + + Currently curl has to performs an extra fread(3) call to get a return + value equal to 0 to stop looping. + + This usually "works" (even though nread==0 shouldn't be interpreted as + EOF) if stdin is a pipe because EOF usually marks the "real" end of the + stream, so the extra fread(3) call will return immediately and the extra + read syscall won't be noticeable: + + bash-5.1$ strace -e read curl -s -F file=@- 0x0.st <<< a 2>&1 | + > tail -n 5 + read(0, "a\n", 4096) = 2 + read(0, "", 4096) = 0 + read(0, "", 4096) = 0 + http://0x0.st/oRs.txt + +++ exited with 0 +++ + bash-5.1$ + + But this doesn't work if curl is reading from stdin, stdin is a + terminal, and the EOF is being emulated using a shell with ^D. Two + consecutive ^D will be required in this case to actually make curl stop + reading: + + bash-5.1$ curl -F file=@- 0x0.st + a + ^D^D + http://0x0.st/oRs.txt + bash-5.1$ + + A possible workaround to this issue is to use a program that handles EOF + correctly to indirectly send data to curl's stdin: + + bash-5.1$ cat - | curl -F file=@- 0x0.st + a + ^D + http://0x0.st/oRs.txt + bash-5.1$ + + This patch makes curl handle EOF properly when using fread(3) in + file2memory() so that the workaround is not necessary. + + Since curl was previously ignoring read errors caused by this fread(3), + ferror(3) is also used in the condition of the loop: read errors and EOF + will have the same meaning; this is done to somewhat preserve the old + behaviour instead of making the command fail when a read error occurs. + + Closes #8701 + +- gen.pl: change wording for mutexed options + + Instead of saying "This option overrides NNN", now say "This option is + mutually exclusive to NNN" in the generated man page ouput, as the + option does not in all cases actually override the others but they are + always mutually exclusive. + + Ref: #8704 + Closes #8716 + +- curl: error out if -T and -d are used for the same URL + + As one implies PUT and the other POST, both cannot be used + simultaneously. + + Add test 378 to verify. + + Reported-by: Boris Verkhovskiy + Fixes #8704 + Closes #8715 + +- lib: remove exclamation marks + + ... from infof() and failf() calls. Make them less attention seeking. + + Closes #8713 + +- fail.d: tweak the description + + Reviewed-by: Daniel Gustafsson + Suggested-by: Robert Charles Muir + Ref: https://twitter.com/rcmuir/status/1514915401574010887 + + Closes #8714 + +Daniel Gustafsson (15 Apr 2022) +- docs: Fix missing semicolon in example code + + Multiple share examples were missing a semicolon on the line defining + the CURLSHcode variable. + + Closes: #8697 + Reported-by: Michael Kaufmann + Reviewed-by: Daniel Stenberg + +- infof: consistent capitalization of warning messages + + Ensure that all infof calls with a warning message are capitalized + in the same way. At some point we should probably set up a style- + guide for infof but until then let's aim for a little consistenncy + where we can. + + Closes: #8711 + Reviewed-by: Daniel Stenberg + +- RELEASE-NOTES: synced + +- [Matteo Baccan brought this change] + + perl: removed a double semicolon at end of line + + Remove double semicolons at end of line in Perl code. + + Closes: #8709 + Reviewed-by: Daniel Gustafsson + +- curl_easy_header: fix typos in documentation + + Closes: #8694 + Reviewed-by: Daniel Stenberg + +Marcel Raad (11 Apr 2022) +- appveyor: add Cygwin build + + Closes https://github.com/curl/curl/pull/8693 + +- appveyor: only add MSYS2 to PATH where required + + Closes https://github.com/curl/curl/pull/8693 + +Daniel Stenberg (10 Apr 2022) +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: fix memory leak + + Closes #8691 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: remove remote_addr which is not used in a meaningful way + + Closes #8689 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: enlarge H3_SEND_SIZE + + Make h3_SEND_SIZE larger because current value (20KiB) is too small + for the high latency environment. + + Closes #8690 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: fix HTTP/3 upload stall and avoid busy loop + + This commit fixes HTTP/3 upload stall if upload data is larger than + H3_SEND_SIZE. Only check writability of socket if a stream is + writable to avoid busy loop when QUIC flow control window is filled + up, or upload buffer is full. + + Closes #8688 + +- [Nick Banks brought this change] + + msh3: add support for QUIC and HTTP/3 using msh3 + + Considered experimental, as the other HTTP/3 backends. + + Closes #8517 + +- TODO: "SFTP with SCP://" + +- GHA: move bearssl jobs over from zuul + + Closes #8684 + +- data/DISABLED: disable test 313 on bearssl builds + + Closes #8684 + +- runtests: add 'bearssl' as testable feature + + Closes #8684 + +- GHA: add openssl3 jobs moved over from zuul + + Closes #8683 + +- schannel: remove dead code that will never run + + As the condition can't ever evaluate true + + Reported-by: Andrey Alifanov + Ref: #8675 + Closes #8677 + +- connecache: remove duplicate connc->closure_handle check + + The superfluous extra check could cause analyzer false positives + and doesn't serve any purpose. + + Closes #8676 + +- [Michał Antoniak brought this change] + + mbedtls: remove server_fd from backend + + Closes #8682 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: use token when detecting :status header field + + Closes #8679 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: make curl 1ms faster + + Pass 0 for an already expired timer. + + Closes #8678 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: fix QUIC_IDLE_TIMEOUT + + QUIC_IDLE_TIMEOUT should be of type ngtcp2_duration which is + nanoseconds resolution. + + Closes #8678 + +- English: use American spelling consistently + + Authorization, Initialization, Organization etc. + + Closes #8673 + +Daniel Gustafsson (5 Apr 2022) +- [Sascha Zengler brought this change] + + BUGS: Fix incorrect punctuation + + Closes #8672 + Reviewed-by: Daniel Gustafsson + +Daniel Stenberg (4 Apr 2022) +- tool_listhelp.c: uppercase URL + +- RELEASE-NOTES: synced + +- http: streamclose "already downloaded" + + Instead of connclose()ing, since when HTTP/2 is used it doesn't need to + close the connection as stopping the current transfer is enough. + + Reported-by: Evangelos Foutras + Closes #8665 + +Jay Satiro (1 Apr 2022) +- ftp: fix error message for partial file upload + + - Show the count of bytes written on partial file upload. + + Prior to this change the error message mistakenly showed the count of + bytes read, not written. + + Bug: https://github.com/curl/curl/discussions/8637 + Reported-by: Taras Kushnir + + Closes https://github.com/curl/curl/pull/8649 + +Daniel Stenberg (1 Apr 2022) +- http: correct the header error message to say colon + + Not semicolon + + Reported-by: Gisle Vanem + Ref: #8666 + Closes #8667 + +- lib: #ifdef on USE_HTTP2 better + + ... as nghttp2 might not be the library that provides HTTP/2 support. + + Closes #8661 + +- [Michał Antoniak brought this change] + + mbedtls: remove 'protocols' array from backend when ALPN is not used + + Closes #8663 + +- http2: RST the stream if we stop it on our own will + + For the "simulated 304" case the done-call isn't considered "premature" + but since the server didn't close the stream it needs to be reset to + stop delivering data. + + Closes #8664 + +- http: close the stream (not connection) on time condition abort + + Closes #8664 + +- http2: handle DONE called for the paused stream + + As it could otherwise stall all streams on the connection + + Reported-by: Evangelos Foutras + Fixes #8626 + Closes #8664 + +- tls: make mbedtls and NSS check for h2, not nghttp2 + + This makes them able to also negotiate HTTP/2 even when built to use + hyper for h2. + + Closes #8656 + +- tests/libtest/lib670.c: fixup the copyright year range + + follow-up to b54e18640ea4b7 + +- [Leandro Coutinho brought this change] + + lib670: avoid double check result + + Closes #8660 + +- vtls: use a generic "ALPN, server accepted" message + + Closes #8657 + +- vtls: use a backend standard message for "ALPN: offers %s" + + I call it VTLS_INFOF_ALPN_OFFER_1STR, the '1str' meaning that the + infof() call also needs a string argument: the ALPN ID. + + Closes #8657 + +- [Christian Schmitz brought this change] + + strcase.h: add comment about the return code + + Tool often we run into expecting this to work like strcmp, but it + returns 1 instead of 0 for match. + + Closes #8658 + +- vtls: provide a unified APLN-disagree string for all backends + + Also rephrase to make it sound less dangerous: + + "ALPN: server did not agree on a protocol. Uses default." + + Reported-by: Nick Coghlan + Fixes #8643 + Closes #8651 + +- projects/README: converted to markdown + + Closes #8652 + +- misc: spelling fixes + + Mostly in comments but also in the -w documentation for headers_json. + + Closes #8647 + +- KNOW_BUGS: HTTP3/Transfer closed with n bytes remaining to read + + "HTTP/3 does not support client certs" considered fixed, at least with + the ngtcp2 backend. + + Closes #8523 + +- CURLOPT_PREQUOTE.3: only works for FTP file transfers, not dirs + + Also add to quote.d. Add to TODO as something to add in a future. + + Reported-by: anon00000000 on github + Closes #8602 + Closes #8648 + +- RELEASE-NOTES: synced + +- pop3/smtp: return *WEIRD_SERVER_REPLY when not understood + + This leaves the CURLE_RECV_ERROR error code for explicit failure to + receive network data and allows users to better separate the problems. + + Ref #8356 + Reported-by: Rianov Viacheslav + Closes #8506 + +- docs: lots of minor language polish + + Mostly based on recent language decisions from "everything curl": + + - remove contractions (isn't => is not) + - *an* HTTP (consistency) + - runtime (no hyphen) + - backend (no hyphen) + - URL is uppercase + + Closes #8646 + +Jay Satiro (29 Mar 2022) +- projects: Update VC version names for VS2017, VS2022 + + - Rename VC15 -> VC14.10, VC17 -> VC14.30. + + The projects directory that holds the pre-generated Visual Studio + project files uses VC to indicate the MSVC version. At some point + support for Visual Studio 2017 (Visual Studio version 15 which uses MSVC + 14.10) was added as VC15. Visual Studio 2022 (Visual Studio version 17 + which uses MSVC 14.30) project files were recently added and followed + that same format using VC17. + + There is no such MSVC version (yet) as VC15 or VC17. + + For VS 2017 for example, the name we use is correct as either VS17, + VS2017, VC14.10. I opted for the latter since we use VC for earlier + versions (eg VC10, VC12, etc). + + Ref: https://github.com/curl/curl/pull/8438#issuecomment-1037070192 + + Closes https://github.com/curl/curl/pull/8447 + +Daniel Stenberg (29 Mar 2022) +- mqtt: better handling of TCP disconnect mid-message + + Reported-by: Jenny Heino + Bug: https://hackerone.com/reports/1521610 + Closes #8644 + +- CURLOPT_DISALLOW_USERNAME_IN_URL.3: use uppercase URL + +- [Ian Blanes brought this change] + + docs/DYNBUF: clarify documentation for Curl_dyn_ptr and Curl_dyn_uptr + + Closes #8606 + +- [Ian Blanes brought this change] + + curl: fix segmentation fault for empty output file names. + + Function glob_match_url set *result to NULL when called with filename = + "", producing an indirect NULL pointer dereference. + + Closes #8606 + +- TODO: Read keys from ~/.ssh/id_ecdsa, id_ed25519 + + It would be nice to expand the list of key locations curl uses for the + newer key types supported by libssh2. + + Closes #8586 + +- ngtcp2: update to work after recent ngtcp2 updates + + Assisted-by: Tatsuhiro Tsujikawa + Reported-by: jurisuk on github + Fixes #8638 + Closes #8639 + +- [Farzin brought this change] + + CURLOPT_PROGRESSFUNCTION.3: fix typo in example + + Closes #8636 + +- curl/header_json: output the header names in lowercase + + To better allow json[“header”]. + + Reported-by: Peter Korsgaard + Bug: https://daniel.haxx.se/blog/2022/03/24/easier-header-picking-with-curl/comment-page-1/#comment-25878 + Closes #8633 + +- RELEASE-NOTES: synced + +- headers.h: make Curl_headers_push() be CURLE_OK when not built + + ... to avoid errors when the function isn't there. + + Reported-by: Marcel Raad + Fixes #8627 + Closes #8628 + +- scripts: move three scripts from lib/ to scripts/ + + Move checksrc.pl, firefox-db2pem.sh and mk-ca-bundle.pl since they don't + particularly belong in lib/ + + Also created an EXTRA_DIST= in scripts/Makefile.am instead of specifying + those files in the root Makefile.am + + Closes #8625 + +Marc Hoersken (23 Mar 2022) +- lib/warnless.[ch]: only check for WIN32 and ignore _WIN32 + + curl_setup.h automatically defines WIN32 if just _WIN32 is defined. + + Therefore make sure curl_setup.h is included through warnless.h. + + Reviewed-by: Daniel Stenberg + Reviewed-by: Jay Satiro + + Closes #8594 + +- tests/server/util.h: align WIN32 condition with util.c + + There is no need to test for both _WIN32 and WIN32 as curl_setup.h + automatically defines the later if the first one is defined. + + Also tests/server/util.c is only checking for WIN32 arouund the + implementation of win32_perror, so just defining _WIN32 + would not be sufficient for a successful compilation. + + Reviewed-by: Daniel Stenberg + Reviewed-by: Jay Satiro + + Closes #8594 + +Daniel Stenberg (22 Mar 2022) +- [Philip H brought this change] + + firefox-db2pem.sh: make the shell script safer + + Reported by lift + + Closes #8616 + +Jay Satiro (22 Mar 2022) +- gtls: fix build for disabled TLS-SRP + + Prior to this change if, at build time, the GnuTLS backend was found to + have TLS-SRP support (HAVE_GNUTLS_SRP) but TLS-SRP was disabled in curl + via --disable-tls-srp (!USE_TLS_SRP) then a build error would occur. + + Bug: https://curl.se/mail/lib-2022-03/0046.html + Reported-by: Robert Brose + + Closes https://github.com/curl/curl/pull/8604 + +- winbuild: Add a Visual Studio example to the README + + - Add an example that explains in detail how the user can add libcurl to + their Visual Studio project. + + Ref: https://github.com/curl/curl/issues/8591 + + Closes https://github.com/curl/curl/pull/8592 + +- docs/opts: Mention Schannel client cert type is P12 + + Schannel backend code behaves same as Secure Transport, it expects a P12 + certificate file or the name of a certificate already in the user's OS + key store. Also, both backends ignore CURLOPT_SSLKEY (tool: --key) + because they expect the private key to already be available from the + keystore or P12 certificate. + + Ref: https://github.com/curl/curl/discussions/8581#discussioncomment-2337260 + + Closes https://github.com/curl/curl/pull/8587 + +Daniel Stenberg (22 Mar 2022) +- lib1945: fix compiler warning 4706 on MSVC + + Follow-up from d1e4a677340c + + Closes #8623 + +- [Philip H brought this change] + + ci/event-based.yml: improve impacket install + + skip python3-pip + install impacket with library module + + Closes #8621 + +- test1459: disable for oldlibssh + + This test with libssh 0.9.3 works fine on github but fails on circleci. + Might as well disable this test for oldlibssh installations. + + Closes #8622 + +- test1135: sync with recent API updates + + This test verifies that the order of functions in public headers remain + the same but hasn't been updated to care for recently added header + files. The order is important for some few platforms - or VERSIONINFO + needs to updated. + + This fix also updates VERSIONINFO to be sure. + + Closes #8620 + +- curl_easy_nextheader.3: fix two typos + + Reported-by: Timothe Litt + Bug: https://curl.se/mail/lib-2022-03/0060.html + +- options: remove mistaken space before paren in prototype + +- cirrus: add --enable-headers-api for some windows builds + +- GHA: --enable-headers-api in all workflows + +- lib: make the headers API depend on --enable-headers-api + +- configure: add --enable-headers-api to enable the headers API + + Defaults to disabled while labeled EXPERIMENTAL. + + Make all the headers API tests require 'headers-api' to run. + +- test1671: verify -w '%{header_json} + +- test1670: verify -w %header{} + +- curl: add %{header_json} support in -w handling + + Outputs all response headers as a JSON object. + +- curl: add %header{name} support in -w handling + + Outputs the response header 'name' + +- header api: add curl_easy_header and curl_easy_nextheader + + Add test 1940 to 1946 to verify. + + Closes #8593 + +- test1459: remove the different exit code for oldlibssh + + When using libssh/0.9.3/openssl/zlib, we seem to be getting the "right" + error code. + + Closes #8490 + +- libssh: unstick SFTP transfers when done event-based + + Test 604 and 606 (at least). + + Closes #8490 + +- gha: move the event-based test over from Zuul + + Switched libssh2 to libssh + + Closes #8490 + +- RELEASE-NOTES: synced + +- http: return error on colon-less HTTP headers + + It's a protocol violation and accepting them leads to no good. + + Add test case 398 to verify + + Closes #8610 + +- test718: edited slightly to return better HTTP + + Since hyper is picky and won't play ball otherwise. + + Bug: https://github.com/hyperium/hyper/issues/2783 + Reported-by: Daniel Valenzuela + Closes #8614 + +- hyper: no h2c support + + Make tests require h2c feature present to run, and only set h2c if + nghttp2 is used in the build. Hyper does not support it. + + Remove those tests from DISABLED + + Fixes #8605 + Closes #8613 + +- configure: bump the copyright year range int the generated output + +- [Andreas Falkenhahn brought this change] + + BINDINGS.md: add Hollywood binding + + Closes #8609 + +- HISTORY: add some 2022 data + +- scripts/copyright.pl: ignore the new mlc_config.json file + +- [Philip H brought this change] + + mlc_config.json: add file to ignore known troublesome URLs + + This is the config file for the CI markdown link checker and lets us + filter URLs that are known to cause problems. Like + https://curl.zuul.vexxhost.dev/ for now. + + Closes #8597 + +- [Philip H brought this change] + + winbuild/README.md: fixup dead link + + Closes #8597 + +Jay Satiro (18 Mar 2022) +- rtsp: don't let CSeq error override earlier errors + + - When done, if an error has already occurred then don't check the + sequence numbers for mismatch. + + A sequence number may not have been received if an error occurred. + + Prior to this change a sequence mismatch error would override earlier + errors. For example, a server that returns nothing would cause error + CURLE_GOT_NOTHING in Curl_http_done which was then overridden by + CURLE_RTSP_CSEQ_ERROR in rtsp_done. + + Closes https://github.com/curl/curl/pull/8525 + +- lib: fix some misuse of curlx_convert_wchar_to_UTF8 + + curlx_convert_wchar_to_UTF8 must be freed by curlx_unicodefree, but + prior to this change some uses mistakenly called free. + + I've reviewed all other uses of curlx_convert_wchar_to_UTF8 and + curlx_convert_UTF8_to_wchar. + + Ref: https://github.com/curl/curl/commit/1d5d0ae + + Closes https://github.com/curl/curl/pull/8521 + +- mk-ca-bundle.pl: Use stricter logic to process the certificates + + .. and bump version to 1.29. + + This change makes the script properly ignore unknown blocks and + otherwise fail when Mozilla changes the certdata format in ways we + don't expect. Though this is less flexible behavior it makes it far less + likely that an invalid certificate can slip through. + + Prior to this change the state machine did not always properly reset, + and it was possible that a certificate marked as invalid could then + later be marked as valid when there was conflicting trust info or + an unknown block was erroneously processed as part of the certificate. + + Ref: https://github.com/curl/curl/pull/7801#pullrequestreview-768384569 + + Closes https://github.com/curl/curl/pull/8411 + +Marcel Raad (17 Mar 2022) +- test375: fix line endings on Windows + + Closes https://github.com/curl/curl/pull/8599 + +Daniel Stenberg (17 Mar 2022) +- http: reject header contents with nul bytes + + They are not allowed by the protocol and allowing them risk that curl + misbehaves somewhere where C functions are used but won't work on the + full contents. Further, they are not supported by hyper and they cause + problems for the new coming headers API work. + + Updated test 262 to verify and enabled it for hyper as well + + Closes #8601 + +- [Philip H brought this change] + + CI: Do not use buildconf. Instead, just use: autoreconf -fi + + Closes #8596 + +- RELEASE-NOTES: synced + +Jay Satiro (14 Mar 2022) +- libssh: Improve fix for missing SSH_S_ stat macros + + - If building libcurl against an old libssh version missing SSH_S_IFMT + and SSH_S_IFLNK then use the values from a supported version. + + Prior to this change if libssh did not define SSH_S_IFMT and SSH_S_IFLNK + then S_IFMT and S_IFLNK, respectively, were used instead. The problem + with that is the user's S_ stat macros don't have the same values across + platforms. For example Windows has values different from Linux. + + Follow-up to 7b0fd39. + + Ref: https://github.com/curl/curl/pull/8511#discussion_r815292391 + Ref: https://github.com/curl/curl/pull/8574 + + Closes https://github.com/curl/curl/pull/8588 + +Marc Hoersken (13 Mar 2022) +- tool and tests: force flush of all buffers at end of program + + On Windows data can be lost in buffers in case of abnormal program + termination, especially in process chains as seen due to flaky tests. + Therefore flushing all buffers manually should avoid this data loss. + + In the curl tool we play the safe game by only flushing write buffers, + but in the testsuite where we manage all buffers, we flush everything. + + This should drastically reduce Windows CI and testsuite flakiness. + + Reviewed-by: Daniel Stenberg + + Supersedes #7833 and #6064 + Closes #8516 + +Daniel Stenberg (12 Mar 2022) +- [Jan Venekamp brought this change] + + BearSSL: add CURLOPT_SSL_CTX_FUNCTION support + + Closes #8478 + +- [Jan Venekamp brought this change] + + BearSSL: add CURLOPT_SSL_CIPHER_LIST support + + Closes #8477 + +Dan Fandrich (11 Mar 2022) +- tool_cb_hdr: Turn the Location: into a terminal hyperlink + + This turns even relative URLs into clickable hyperlinks in a supported + terminal when --styled-output is enabled. Many terminals already turn + URLs into clickable links but there is not enough information in a + relative URL to do this automatically otherwise. + +- keepalive-time.d: It takes many probes to detect brokenness + +Daniel Stenberg (11 Mar 2022) +- [HexTheDragon brought this change] + + curl: add --no-clobber + + Does not overwrite output files if they already exist + + Closes #7708 + Co-authored-by: Daniel Stenberg + +- RELEASE-NOTES: synced + + also bump next pending version to become 7.83.0 + +- [Jean-Philippe Menil brought this change] + + openssl: check SSL_get_peer_cert_chain return value + + Signed-off-by: Jean-Philippe Menil + Closes #8579 + +- [Jay Satiro brought this change] + + mk-ca-bundle.vbs: delete this script in favor of mk-ca-bundle.pl + + mk-ca-bundle.vbs is a Windows-specific script for Mozilla certificate + extraction, similar to mk-ca-bundle.pl which runs on any platform. The + vbs version has not been maintained while the perl version has been + maintained with improvements and security fixes. I don't think it's + worth the work to maintain both versions. Windows users should be able + to use mk-ca-bundle.pl without any problems, as long as they have perl. + + Closes #8412 + +- CURLSHOPT_UNLOCKFUNC.3: fix the callback prototype + + Copy and paste error + + Reported-by: Francisco Olarte + Fixes #8573 + Closes #8577 + +- remove-on-error.d: typo + + Reported-by: Colin Leroy + Bug: https://github.com/curl/curl/pull/8503#pullrequestreview-906520081 + +- curl: add --remove-on-error + + If a transfer returns an error, using this option makes curl remove the + leftover downloded (partial) local file before exiting. + + Added test 376 to verify + + Closes #8503 + +- libssh: fix build with old libssh versions + + ... that don't have the SSH_S_* defines. Spotted on a machine using + libssh 0.7.3 + + Closes #8574 + +- hyper: fix status_line() return code + + Detected while working on #7708 that happened to trigger an error here + with a new test case. + + Closes #8572 + +- [Alejandro R. Sedeño brought this change] + + configure.ac: move -pthread CFLAGS setting back where it used to be + + The fix for #8276 proposed in #8374 set `CFLAGS="$CFLAGS -pthead"` + earlier than it used to be set, applying it in cases where it should not + have been applied. + + This moves the AIX XLC check to a new `case $host in` block inside of + the `if test "$USE_THREADS_POSIX" != "1"` block, where `CFLAGS="$CFLAGS + -pthead"` used to happen. + + Fixes #8541 + Closes #8542 + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: add client certificate authentication for OpenSSL + + Closes #8522 + +- tool_operate: fix a scan-build warning + + ... and avoid the temp storing of the return code in a diff variable. + + Closes #8565 + +- test375: verify that --proxy errors out if proxy is disabled in the build + + Closes #8565 + +- curl: error out when options need features not present in libcurl + + Trying to use a proxy when libcurl was built with proxy support disabled + should make curl error out properly. + + Remove knowledge of disabled features from the tool code and instead + make it properly respond to what libcurl returns. Update all tests to + properly require the necessary features to be present/absent so that the + test suite can still be run even with libcurl builds with disabled + features. + + Ref: https://curl.se/mail/archive-2022-03/0013.html + Closes #8565 + +- ngtcp2: disconnect the QUIC connection proper + + Reported-by: mehatzri on github + Reviewed-by: Tatsuhiro Tsujikawa + Fixes #8534 + closes #8569 + +Dan Fandrich (9 Mar 2022) +- test386: Fix an incorrect test markup tag + +Daniel Stenberg (9 Mar 2022) +- [Don J Olmstead brought this change] + + nonblock: restore setsockopt method to curlx_nonblock + + The implementation using setsockopt was removed when BeOS support was + purged. However this functionality wasn't BeOS specific, it is still + used by for example Orbis OS (Playstation 4/5 OS). + + Closes #8562 + +- openssl: fix CN check error code + + Due to a missing 'else' this returns error too easily. + + Regressed in: d15692ebb + + Reported-by: Kristoffer Gleditsch + Fixes #8559 + Closes #8560 + +- [Frank Meier brought this change] + + connect: make Curl_getconnectinfo work with conn cache from share handle + + Closes #8524 + +- [lwthiker brought this change] + + openssl: enable CURLOPT_SSL_EC_CURVES with BoringSSL + + The CURLOPT_SSL_EC_CURVES option (used by the '--curves' flag) in + libcurl was ignored when compiling with BoringSSL because + HAVE_SSL_CTX_SET_EC_CURVES was explicitly disabled if BoringSSL was + detected. However, this feature is supported in BoringSSL since + 5fd1807d. This commit enables it, and also reduces the required minimal + OpenSSL version to 1.0.2 as per OpenSSL's official documentation. + + Fixes #8553 + Closes #8556 + +- [Samuel Henrique brought this change] + + json.d: fix typo (overriden -> overridden) + + Closes #8557 + +- wolfssl: fix compiler error without IPv6 + + Reported-by: Joseph Chen + Fixes #8550 + Closes #8552 + +- RELEASE-NOTES: synced + + and bump pending version to 7.82.1 + +- [Paul Howarth brought this change] + + runtests: make 'oldlibssh' be before 0.9.4 + + The 'oldlibssh' feature indicates that the error code returned by libssh + for a broken known_hosts file should be 67 rather than 60 (test1459). + This feature was added as part of #8444 with 'oldlibssh' mapping to + libssh versions prior to 0.9.6, and then refined as part of #8511 to map + to versions prior to 0.9.5. + + In Red Hat Enterprise Linux 8.5 there is a patched version of libssh + version 0.9.4 (https://git.centos.org/rpms/libssh/blob/c8/f/SOURCES) in + which test1459 fails because it returns the "new" value rather than the + "old" one. It's plausible that one of the patches is responsible for + this rather than the underlying code but I don't think so. + + This change therefore drops the 'oldlibssh' version check to map to + libssh versions older than 0.9.4, which fixes builds on RHEL-8. + + Closes #8548 + +- ipv4/6.d: clarify that they are about using IP addresses + + ... they may still *resolve* other families, but not use those + addresses. + + Ref: #8530 + Closes #8543 + +- [r-a-sattarov brought this change] + + curl/system.h: update ifdef condition for MCST-LCC compiler + + in mcst-lcc compiler => 1.25 added a new macro definition to determine + compiler + + Closes #8546 + +Marc Hoersken (6 Mar 2022) +- CI: install Python package impacket to run SMB test 1451 + + Install Python package impacket in relevant CI workflows. + + Follow up to #7935 + Supersedes #7940 + Closes #8544 + +Daniel Stenberg (5 Mar 2022) +- [Michał Antoniak brought this change] + + connect: use TCP_KEEPALIVE only if TCP_KEEPIDLE is not defined + + Closes #8539 + +- docs/HYPER.md: updated to reflect current hyper build needs + +- GHA: build hyper with nightly rustc + + Closes #8545 + +Version 7.82.0 (5 Mar 2022) + +Daniel Stenberg (5 Mar 2022) +- RELEASE-NOTES: synced + + The 7.82.0 release + +- THANKS: updates from the 7.82.0 release notes + +- misc: update copyright year ranges + +Jay Satiro (5 Mar 2022) +- unit1610: init SSL library before calling SHA256 functions + + The SSL library must be initialized (via global initialization) because + libcurl's SHA256 functions may call SHA256 functions in the SSL library. + + Reported-by: Gisle Vanem + + Fixes https://github.com/curl/curl/issues/8538 + Closes https://github.com/curl/curl/pull/8540 + +- examples/curlx: support building with OpenSSL 1.1.0+ + + - Access members of X509_STORE_CTX in OpenSSL 1.1.0+ by using API + functions. + + The X509_STORE_CTX struct has been opaque since OpenSSL 1.1.0. + + Ref: https://curl.se/mail/lib-2022-03/0004.html + + Closes https://github.com/curl/curl/pull/8529 + +- h2h3: fix typo + + Bug: https://github.com/curl/curl/issues/8381#issuecomment-1055440241 + Reported-by: Michael Kaufmann + +- [Farzin brought this change] + + CURLOPT_XFERINFOFUNCTION.3: fix example struct assignment + + Closes https://github.com/curl/curl/pull/8519 + +Daniel Stenberg (26 Feb 2022) +- azure-pipelines: add a build on Windows with libssh + + Closes #8511 + +- runtests: make 'oldlibssh' be before 0.9.5 + + Closes #8511 + +- libssh: fix include files and defines use for Windows builds + + Reported-by: 梦终无痕 + Bug: https://curl.se/mail/lib-2022-02/0131.html + Closes #8511 + +- RELEASE-NOTES: synced + +- [illusory-dream brought this change] + + winbuild: add parameter WITH_SSH + + For building with libssh + Closes #8514 + +- configure: change output for cross-compiled alt-svc support + + It said 'no', while it actually is 'yes' + + Closes #8512 + +- gha: add a macOS CI job with libssh + + Closes #8513 + +- TODO: remove "Bring back libssh tests on Travis" + + The job was added to Circle CI in d8ddd0e7536 + +- TODO: remove "better persistency for HTTP/1.0" + + Let's not bother. + +- TODO: remove "Option to ignore private IP" + + ... as curl ignores the IP entirely by default these days. + +- TODO: remove "hardcode the "localhost" addresses" + + This is implmented since 1a0ebf6632f88 + +- TODO: 1.24 was a dupe of 1.1 + +- TODO: remove "Typesafe curl_easy_setopt()" + + I don't consider this a serious TODO item + +- KNOWN_BUGS: remove "Uploading HTTP/3 files gets interrupted" + + This works now + +- KNOWN_BUGS: remove "HTTP/3 multipart POST with quiche fails" + + It works now + +- quiche: remove two leftover debug infof() outputs + +- [Tatsuhiro Tsujikawa brought this change] + + ngtcp2: Reset dynbuf when it is fully drained + + Reported-by: vl409 on github + Fixes #7351 + Closes #8504 + +- [Stewart Gebbie brought this change] + + hostip: avoid unused parameter error in Curl_resolv_check + + When built without DNS-over-HTTP and without asynchronous resolvers, + neither the dns nor the data parameters are used. + + That is Curl_resolv_check appears to call + Curl_resolver_is_resolved(data, dns). But, + with CURL_DISABLE_DOH without CURLRES_ASYNCH, the call is actually + elided via a macro definition. + + This fix resolves the resultant: "unused parameter 'data'" error. + + Closes #8505 + +- http2: move two infof calls to debug-h2-only + + and remove a superflous one + + Ref: https://github.com/curl/curl/discussions/8498 + Closes #8502 + +- [Jean-Philippe Menil brought this change] + + quiche: fix upload for bigger content-length + + Signed-off-by: Jean-Philippe Menil + Closes #8421 + +Jay Satiro (23 Feb 2022) +- [Farzin brought this change] + + CURLOPT_PROGRESSFUNCTION.3: fix example struct assignment + + Closes https://github.com/curl/curl/pull/8500 + +Daniel Stenberg (22 Feb 2022) +- [Rob Boeckermann brought this change] + + OS400/README: clarify compilation steps + + Closes #8494 + +- [Rob Boeckermann brought this change] + + OS400: fix typos in rpg include file + + This resolves issues compiling rpg code that includes the curl header + file. + + Closes #8494 + +- [Michał Antoniak brought this change] + + vtls: fix socket check conditions + + fix condition to check the second socket during associate and + disassociate connection + + Closes #8493 + +- libssh2: don't typecast socket to int for libssh2_session_handshake + + Since libssh2_socket_t uses SOCKET on windows which can be larger than + int. + + Closes #8492 + +- RELEASE-NOTES: fix typo and make one desc shorter + +- RELEASE-NOTES: synced + +- CURLOPT_XFERINFOFUNCTION.3: fix typo in example + + Reported-by: coralw on github + Fixes #8487 + Closes #8488 + +- README: disable linkchecks for the sponsor links + + Closes #8489 + +Jay Satiro (21 Feb 2022) +- openssl: check if sessionid flag is enabled before retrieving session + + Ideally, Curl_ssl_getsessionid should not be called unless sessionid + caching is enabled. There is a debug assertion in the function to help + ensure that. Therefore, the pattern in all vtls is basically: + + if(primary.sessionid) {lock(); Curl_ssl_getsessionid(...); unlock();} + + There was one instance in openssl.c where sessionid was not checked + beforehand and this change fixes that. + + Prior to this change an assertion would occur in openssl debug builds + during connection stage if session caching was disabled. + + Reported-by: Jim Beveridge + + Fixes https://github.com/curl/curl/issues/8472 + Closes https://github.com/curl/curl/pull/8484 + +- multi: allow user callbacks to call curl_multi_assign + + Several years ago a change was made to block user callbacks from calling + back into the API when not supported (recursive calls). One of the calls + blocked was curl_multi_assign. Recently the blocking was extended to the + multi interface API, however curl_multi_assign may need to be called + from within those user callbacks (eg CURLMOPT_SOCKETFUNCTION). + + I can't think of any callback where it would be unsafe to call + curl_multi_assign so I removed the restriction entirely. + + Reported-by: Michael Wallner + + Ref: https://github.com/curl/curl/commit/b46cfbc + Ref: https://github.com/curl/curl/commit/340bb19 + + Fixes https://github.com/curl/curl/issues/8480 + Closes https://github.com/curl/curl/pull/8483 + +Daniel Stenberg (21 Feb 2022) +- [Michał Antoniak brought this change] + + ssl: reduce allocated space for ssl backend when FTP is disabled + + Add assert() for the backend pointer in many places + + Closes #8471 + +- [Michał Antoniak brought this change] + + checkprefix: remove strlen calls + + Closes #8481 + +Jay Satiro (20 Feb 2022) +- [1337vt brought this change] + + curl.h: fix typo + + Closes https://github.com/curl/curl/pull/8482 + +- [Jan Venekamp brought this change] + + sectransp: mark a 3DES cipher as weak + + - Change TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA strength to weak. + + All other 3DES ciphers are already marked as weak. + + Closes https://github.com/curl/curl/pull/8479 + +- [Jan Venekamp brought this change] + + bearssl: fix EXC_BAD_ACCESS on incomplete CA cert + + - Do not create trust anchor object for a CA certificate until after it + is processed. + + Prior to this change the object was created at state BR_PEM_BEGIN_OBJ + (certificate processing begin state). An incomplete certificate (for + example missing a newline at the end) never reaches BR_PEM_END_OBJ + (certificate processing end state) and therefore the trust anchor data + was not set in those objects, which caused EXC_BAD_ACCESS. + + Ref: https://github.com/curl/curl/pull/8106 + + Closes https://github.com/curl/curl/pull/8476 + +- [Jan Venekamp brought this change] + + bearssl: fix connect error on expired cert and no verify + + - When peer verification is disabled use the x509_decode engine instead + of the x509_minimal engine to parse and extract the public key from + the first cert of the chain. + + Prior to this change in such a case no key was extracted and that caused + CURLE_SSL_CONNECT_ERROR. The x509_minimal engine will stop parsing if + any validity check fails but the x509_decode won't. + + Ref: https://github.com/curl/curl/pull/8106 + + Closes https://github.com/curl/curl/pull/8475 + +- [Jan Venekamp brought this change] + + bearssl: fix session resumption (session id) + + Prior to this change br_ssl_client_reset was mistakenly called with + resume_session param set to 0, which disabled session resumption. + + Ref: https://github.com/curl/curl/pull/8106 + + Closes https://github.com/curl/curl/pull/8474 + +Daniel Stenberg (18 Feb 2022) +- [Michał Antoniak brought this change] + + openssl: fix build for version < 1.1.0 + + Closes #8470 + +- [Joel Depooter brought this change] + + schannel: move the algIds array out of schannel.h + + This array is only used by the SCHANNEL_CRED struct in the + schannel_acquire_credential_handle function. It can therefore be kept as + a local variable. This is a minor update to + bbb71507b7bab52002f9b1e0880bed6a32834511. + + This change also updates the NUM_CIPHERS value to accurately count the + number of ciphers options listed in schannel.c, which is 47 instead of + 45. It is unlikely that anyone tries to set all 47 values, but if they + had tried, the last two would not have been set. + + Closes #8469 + +- [Alejandro R. Sedeño brought this change] + + configure.ac: use user-specified gssapi dir when using pkg-config + + Using the system pkg-config path in the face of a user-specified + library path is asking to link the wrong library. + + Reported-by: Michael Kaufmann + Fixes #8289 + Closes #8456 + +- [Kevin Adler brought this change] + + os400: Add link to QADRT devkit to README.OS400 + + Closes #8455 + +- [Kevin Adler brought this change] + + os400: Add function wrapper for system command + + The wrapper will exit if the system command failed instead of blindly + continuing on. + + In addition, only copy docs which exist, since now the copy failure will + cause the build to stop. + + Closes #8455 + +- [Kevin Adler brought this change] + + os400: Default build to target current release + + V6R1M0 is not available as a target release since IBM i 7.2. To keep + from having to keep this up to date in git, default to the current + release. Users can configure this to whatever release they want to + actually build for. + + Closes #8455 + +- docs/INTERNALS.md: clean up, refer to the book + + The explanatory parts are now in the everything curl book (which can + also use images etc). This document now refers to that resource and only + leaves listings of supported versions of libs, tools and operating + systems. See https://everything.curl.dev/internals + + Closes #8467 + +Marcel Raad (17 Feb 2022) +- des: fix compile break for OpenSSL without DES + + When `USE_OPENSSL` was defined but OpenSSL had no DES support and a + different crypto library was used for that, `Curl_des_set_odd_parity` + was called but not defined. This could for example happen on Windows + and macOS when using OpenSSL v3 with deprecated features disabled. + + Use the same condition for the function definition as used at the + caller side, but leaving out the OpenSSL part to avoid including + OpenSSL headers. + + Closes https://github.com/curl/curl/pull/8459 + +Daniel Stenberg (17 Feb 2022) +- RELEASE-NOTES: synced + +- docs/DEPRECATE: remove NPN support in August 2022 + + Closes #8458 + +- ftp: provide error message for control bytes in path + + Closes #8460 + +- http: fix "unused parameter ‘conn’" warning + + Follow-up from 7d600ad1c395 + + Spotted on appveyor + + Closes #8465 + +Jay Satiro (17 Feb 2022) +- [Alejandro R. Sedeño brought this change] + + sha256: Fix minimum OpenSSL version + + - Change the minimum OpenSSL version for using their SHA256 + implementation from 0.9.7 to 0.9.8. + + EVP_sha256() does not appear in the OpenSSL source before 0.9.7h, and + does not get built by default until 0.9.8, so trying to use it for all + 0.9.7 is wrong, and before 0.9.8 is unreliable. + + Closes https://github.com/curl/curl/pull/8464 + +Daniel Stenberg (16 Feb 2022) +- KNOWN_BUGS: remove "slow connect to localhost on Windows" + + localhost is not resolved anymore since 1a0ebf6632f88 + +- KNOWN_BUGS: remove "HTTP/3 download is 5x times slower than HTTP/2" + + It's not actually a bug. More like room for improvement. + +- KNOWN_BUGS: remove "HTTP/3 download with quiche halts after a while" + + Follow-up to 96f85a0fef694 + +- KNOWN_BUGS: remove "pulseUI vpn" as a problem + + We haven't heard about this for a long time and rumours have it they + might have fixed it. + +- urldata: remove conn->bits.user_passwd + + The authentication status should be told by the transfer and not the + connection. + + Reported-by: John H. Ayad + Fixes #8449 + Closes #8451 + +- [Kevin Adler brought this change] + + gskit: Convert to using Curl_poll + + As mentioned in 32766cb, gskit was the last user of Curl_select which is + now gone. Convert to using Curl_poll to allow build to work on IBM i. + + Closes #8454 + +- [Kevin Adler brought this change] + + gskit: Fix initialization of Curl_ssl_gskit struct + + In c30bf22, Curl_ssl_getsock was factored out in to a member of + struct Curl_ssl but the gskit initialization was not updated to reflect + this new member. + + Closes #8454 + +- [Kevin Adler brought this change] + + gskit: Fix errors from Curl_strerror refactor + + 2f0bb864c1 replaced sterror with Curl_strerror, but the strerror buffer + shadows the set_buffer "buffer" parameter. To keep consistency with the + other functions that use Curl_strerror, rename the parameter. + + In addition, strerror.h is needed for the definition of STRERROR_LEN. + + Closes #8454 + +Marcel Raad (15 Feb 2022) +- ntlm: remove unused feature defines + + They're not used anymore and always supported. + + Closes https://github.com/curl/curl/pull/8453 + +Daniel Stenberg (15 Feb 2022) +- [Kantanat Wannapaka brought this change] + + README.md: fix link and layout + + replace tags and tags + + Closes #8448 + +- KNOWN_BUGS: fix typo "libpsl" + +Jay Satiro (14 Feb 2022) +- h2h3: fix compiler warning due to function prototype mismatch + + - Add missing const qualifier in Curl_pseudo_headers declaration. + +Daniel Stenberg (14 Feb 2022) +- [Stefan Eissing brought this change] + + urlapi: handle "redirects" smarter + + - avoid one malloc when setting a new url via curl_url_set() + and CURLUPART_URL. + - extract common pattern into a new static function. + + Closes #8450 + +- cijobs: pick up circleci configure lines better + +- circleci: add a job using wolfSSH + + Build only, no tests. + + Closes #8445 + +- scripts/ciconfig.pl: show used options not available + +- circleci: add a job using libssh + + Closes #8444 + +- runtests: set 'oldlibssh' for libssh versions before 0.9.6 + + ... and make test 1459 check for the different return code then. + + Closes #8444 + +Jay Satiro (13 Feb 2022) +- Makefile.am: Generate VS 2022 projects + + Follow-up to f13d4d0 which added VS 2022 project support. + + Ref: https://github.com/curl/curl/pull/8438 + +- [Daniel Stenberg brought this change] + + projects: remove support for MSVC before VC10 (Visual Studio 2010) + + - Remove Visual Studio project files for VC6, VC7, VC7.1, VC8 and VC9. + + Those versions are too old to be maintained any longer. + + Closes https://github.com/curl/curl/pull/8442 + +- [Stav Nir brought this change] + + projects: add support for Visual Studio 17 (2022) + + Closes https://github.com/curl/curl/pull/8438 + +Daniel Stenberg (13 Feb 2022) +- RELEASE-NOTES: synced + +- connect: follow-up fix the copyright year + +- [Michał Antoniak brought this change] + + misc: remove unused data when IPv6 is not supported + + Closes #8430 + +- scripts/ciconfig: show CI job config info + + Closes #8446 + +- quiche: handle stream reset + + A stream reset now causes a CURLE_PARTIAL_FILE error. I'm not convinced + this is the right action nor the right error code. + + Reported-by: Lucas Pardue + Fixes #8437 + Closes #8440 + +- mime: use a define instead of the magic number 24 + + MIME_BOUNDARY_DASHES is now the number of leading dashes in the + generated boundary string. + + Closes #8441 + +- [Henrik Holst brought this change] + + hostcheck: reduce strlen calls on chained certificates + + Closes #8428 + +- [Patrick Monnerat brought this change] + + mime: some more strlen() call removals. + + Closes #8423 + +- scripts/cijobs.pl: detect zuul cmake jobs better + +- url: exclude zonefrom_url when no ipv6 is available + + Closes #8439 + +- if2ip: make Curl_ipv6_scope a blank macro when IPv6-disabled + + Closes #8439 + +- [Henrik Holst brought this change] + + mprintf: remove strlen calls on empty strings in dprintf_formatf + + Turns out that in dprintf_formatf we did a strlen on empty strings, a + bit strange is how common this actually is, 24 alone when doing a simple + GET from https://curl.se + + Closes #8427 + +- wolfssl: return CURLE_AGAIN for the SSL_ERROR_NONE case + + Closes #8431 + +- wolfssl: when SSL_read() returns zero, check the error + + Returning zero indicates end of connection, so if there's no data read + but the connection is alive, it needs to return -1 with CURLE_AGAIN. + + Closes #8431 + +- quiche: after leaving h3_recving state, poll again + + This could otherwise easily leave libcurl "hanging" after the entire + transfer is done but without noticing the end-of-transfer signal. + + Assisted-by: Lucas Pardue + Closes #8436 + +- quiche: when *recv_body() returns data, drain it before polling again + + Assisted-by: Lucas Pardue + + Closes #8429 + +- [gaoxingwang on github brought this change] + + configure: fix '--enable-code-coverage' typo + + Fixes #8425 + Closes #8426 + +- lib/h2h3: #ifdef on ENABLE_QUIC, not the wrong define + + Otherwise the build fails when H3 is enabled but the build doesn't + include nghttp2. + + Closes #8424 + +- hostcheck: pass in pattern length too, to avoid a strlen call + + Removes one strlen() call per SAN name in a cert-check. + + Closes #8418 + +- [Henrik Holst brought this change] + + misc: remove strlen for Curl_checkheaders + Curl_checkProxyheaders + + Closes #8409 + +- configure: requires --with-nss-deprecated to build with NSS + + Add deprecation plans to docs/DEPRECATE.md + + Closes #8395 + +- mqtt: free 'sendleftovers' in disconnect + + Fix a memory-leak + + Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43646 + Closes #8415 + +- [Patrick Monnerat brought this change] + + openldap: pass string length arguments to client_write() + + This uses the new STRCONST() macro and saves 2 strlen() calls on short + string constants per LDIF output line. + + Closes #8404 + +- [Henrik Holst brought this change] + + misc: reduce strlen() calls with Curl_dyn_add() + + Use STRCONST() to switch from Curl_dyn_add() to Curl_dyn_addn() for + string literals. + + Closes #8398 + +- http2: fix the array copy to nghttp2_nv + + Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44517 + Follow-up to 9f985a11e794 + Closes #8414 + +- RELEASE-NOTES: synced + +- scripts/cijobs.pl: output data about all currect CI jobs + + This script parses the config files for all the CI services currently in + use and output the information in a uniform way. The idea is that the + output from this script should be possible to massage into informational + tables or graphs to help us visualize what they are all testing and NOT + testing. + + Closes #8408 + +- maketgz: return error if 'make dist' fails + + To better detect this problem in CI jobs + + Reported-by: Marcel Raad + Bug: https://curl.se/mail/lib-2022-02/0070.html + Closes #8402 + +- h2h3: pass correct argument types to infof() + + Detected by Coverity. CID 1497993 + + Closes #8401 + +- lib/Makefile: remove config-tpf.h from the dist + + Follow-up from da15443dddea2bfb. Missed before because the 'distcheck' + CI job was not working as intended. + + Reported-by: Marcel Raad + Bug: https://curl.se/mail/lib-2022-02/0070.html + Closes #8403 + +- configure: remove support for "embedded ares" + + In March 2010 (commit 4259d2df7dd) we removed the embedded 'ares' + directory from the curl source tree but we have since supported + especially detecting and using that build directory. The time has come + to remove that kludge and ask users to specify the c-ares dir correctly + with --enable-ares. + + Closes #8397 + +- [Sebastian Sterk brought this change] + + github/workflows/mbedtls: fix indent & remove unnecessary line breaks + + Closes #8399 + +- CI: move the NSS job from zuul to GHA + + Closes #8396 + +- tests/unit/Makefile.am: add NSS_LIBS to build with NSS fine + + Closes #8396 + +Marcel Raad (7 Feb 2022) +- curl-openssl: fix SRP check for OpenSSL 3.0 + + When OpenSSL 3.0 is built with `--api=3.0` and `no-deprecated`, the SRP + functions exist in the library, but are disabled for user code. Check + if they are actually usable instead of only if they exist. Also, check + for the functions actually required for TLS-SRP. + + TLS-SRP support is still enabled if OpenSSL is configured with just + `--api=3.0` or with `--api=1.1.1 no-deprecated`. + + Closes https://github.com/curl/curl/pull/8394 + +Daniel Stenberg (7 Feb 2022) +- [Henrik Holst brought this change] + + http: make Curl_compareheader() take string length arguments too + + Also add STRCONST, a macro that returns a string literal and it's length + for functions that take "string,len" + + Removes unnecesary calls to strlen(). + + Closes #8391 + +- vquic/vquic.h: removed the unused H3 psuedo defines + +- ngtcp2: use Curl_pseudo_headers + +- quiche: use Curl_pseudo_headers + +- http2: use Curl_pseudo_headers + +- h2h3: added Curl_pseudo_headers() + + For use with both http2 and http3 requests. + +- ngtcp2/quiche: make :scheme possible to set + +- http2: allow CURLOPT_HTTPHEADER change ":scheme" + + The only h2 psuedo header that wasn't previously possible to change by a + user. This change also makes it impossible to send a HTTP/1 header that + starts with a colon, which I don't think anyone does anyway. + + The other pseudo headers are possible to change indirectly by doing the + rightly crafted request. + + Reported-by: siddharthchhabrap on github + Fixes #8381 + Closes #8393 + +- h2/h3: provide and refer to pseudo headers as defines + + ... and do sizeof() on the defines to use constants better. + + Closes #8389 + +- [Michał Antoniak brought this change] + + smb: passing a socket for writing and reading data instead of FIRSTSOCKET + + Closes #8383 + +- x509asn1: toggle off functions not needed for diff tls backends + + ... and clean the header file from private defines/structs (move to C + file) and unused function prototypes. + + Closes #8386 + +- lib: move hostcheck and x509sn1 sources to vtls/ + + ... since they are used strictly by TLS code. + + Closes #8386 + +Marcel Raad (4 Feb 2022) +- version_win32: fix warning for `CURL_WINDOWS_APP` + + The build version is not supported by the UWP code. + + Closes https://github.com/curl/curl/pull/8385 + +Daniel Stenberg (4 Feb 2022) +- tests/disable-scan.pl: properly detect multiple symbols per line + + Test 1165 would fail on some systems because it didn't detect + CURL_DISABLE_* symbols that were used to the right of another one on the + same line! The script would only detect and extract the first one. + + Reported-by: Marcel Raad + Fixes #8384 + Closes #8388 + +Jay Satiro (4 Feb 2022) +- config.d: Clarify _curlrc filename is still valid on Windows + + Recent changes added support for filename .curlrc on Windows, and + when it's not found curl falls back on the original Windows filename + _curlrc. _curlrc was removed from the doc, however it is still valid. + + Closes https://github.com/curl/curl/pull/8382 + +Daniel Stenberg (4 Feb 2022) +- lib: remove support for CURL_DOES_CONVERSIONS + + TPF was the only user and support for that was dropped. + + Closes #8378 + +- TPF: drop support + + There has been no TPF related changes done since September 2010 (commit + 7e1a45e224e57) and since this is a platform that is relatively different + than many others (== needs attention), I draw the conclusion that this + build is broken since a long time. + + Closes #8378 + +- scripts/delta: check the file delta for current branch + + ... also polish the output style a little bit + +Jay Satiro (3 Feb 2022) +- [Fabian Keil brought this change] + + runtests.pl: tolerate test directories without Makefile.inc + + Silences the following warnings when using a Makefile.inc-free + TESTDIR using the "-o" argument: + + readline() on closed filehandle D at ./runtests.pl line 592. + Use of uninitialized value $disttests in pattern match (m//) at + ./runtests.pl line 3602. + + Closes https://github.com/curl/curl/pull/8379 + +Daniel Stenberg (3 Feb 2022) +- [Henrik Holst brought this change] + + setopt: do bounds-check before strdup + + Curl_setstropt() allocated memory for the string before checking if the + string was within bounds. The bounds check should be done first. + + Closes #8377 + +- [Michał Antoniak brought this change] + + mbedtls: enable use of mbedtls without filesystem functions support + + Closes #8376 + +- [Bernhard Walle brought this change] + + configure: support specification of a nghttp2 library path + + This enables using --with-nghttp2= on systems without pkg-config. + + Closes #8375 + +- scripts/release-notes.pl: remove leftover debug output + +- RELEASE-NOTES: synced + +- scripts/release-notes.pl: fix number extraction for full URLs + +- [Leah Neukirchen brought this change] + + scripts/completion.pl: improve zsh completion + + - Detect all spellings of , etc as well as . + - Only complete directories for . + - Complete URLs for . + - Complete --request and --ftp-method. + + Closes #8363 + +- [Davide Cassioli brought this change] + + configure: use correct CFLAGS for threaded resolver with xlC on AIX + + Fixes #8276 + Closes #8374 + +- mailmap: Henrik Holst + +Jay Satiro (2 Feb 2022) +- build: fix ngtcp2 crypto library detection + + - Change library link check for ngtcp2_crypto_{gnutls,openssl} to + to use function ngtcp2_crypto_recv_client_initial_cb instead of + ngtcp2_crypto_ctx_initial. + + The latter function is no longer external since two days ago in + ngtcp2/ngtcp2@533451f. curl HTTP/3 CI builds have been failing since + then because they would not link to the ngtcp2 crypto library. + + Ref: https://github.com/ngtcp2/ngtcp2/pull/356 + + Closes https://github.com/curl/curl/pull/8372 + +- [Henrik Holst brought this change] + + urlapi: remove an unnecessary call to strlen + + - Use strcpy instead of strlen+memcpy to copy the url path. + + Ref: https://curl.se/mail/lib-2022-02/0006.html + + Closes https://github.com/curl/curl/pull/8370 + +Daniel Stenberg (1 Feb 2022) +- scripts/copyright.pl: fix for handling removed files better + +- vxworks: drop support + + No changes or fixes in vxworks related code since 2009 leads me to + believe that this doesn't work anymore. + + Closes #8362 + +- [Henrik Holst brought this change] + + base64: remove an unnecessary call to strlen + + Closes #8369 + +- tool_getparam: initial --json support + + Adds these test cases: + + 383 - simple single command line option + 384 - reading it from stdin + 385 - getting two --json options on command line + 386 - --next works after --json + + Closes #8314 + +- [Bjarni Ingi Gislason brought this change] + + curl_getdate.3: remove pointless .PP line + + mandoc: WARNING: skipping paragraph macro: PP empty + + Reported-by: Samuel Henrique + Closes #8365 + +- [Sebastian Sterk brought this change] + + multi: grammar fix in comment + + After 'must', the verb is used without 'to'. Correct: "must" or "have + to" + + Closes #8368 + +- openldap: fix compiler warning when built without SSL support + + openldap.c:841:52: error: unused parameter ‘data’ [-Werror=unused-parameter] + + Closes #8367 + +- [Samuel Henrique brought this change] + + CURLSHOPT_LOCKFUNC.3: fix typo "relased" -> "released" + + Found when packaging 7.81.0 for Debian. + + Closes #8364 + +- netware: remove support + + There are no current users and no Netware related changes done in the + code for over 13 years is a clear sign this is abandoned. + + Closes #8358 + +- CI: move two jobs from Zuul to Circle CI + + - openssl-no-verbose + - openssl-no-proxy + + Closes #8359 + +- cirlceci: also run a c-ares job on arm with debug enabled + + Closes #8357 + +- ci: move the OpenSSL + c-ares job from Zuul to Circle CI + + Closes #8357 + +- mailmap: Jan-Piet Mens + +- [luminixinc on github brought this change] + + multi: remember connection_id before returning connection to pool + + Fix a bug that does not require a new CVE as discussed on hackerone.com. + Previously `connection_id` was accessed after returning connection to + the shared pool. + + Bug: https://hackerone.com/reports/1463013 + Closes #8355 + +Jay Satiro (31 Jan 2022) +- write-out.d: Fix num_headers formatting + +- [Jan-Piet Mens brought this change] + + docs: capitalize the name 'Netscape' + + Closes https://github.com/curl/curl/pull/8354 + +Daniel Stenberg (30 Jan 2022) +- RELEASE-NOTES: synced + +- [Antoine Pietri brought this change] + + docs: grammar proofread, typo fixes + + (Partially automated) proofread of most of the documentation, leading to + various typo fixes. + + Closes #8353 + +- urldata: CONN_IS_PROXIED replaces bits.close when proxy can be disabled + + To remove run-time checks for such builds. + + Closes #8350 + +- setopt: fix the TLSAUTH #ifdefs for proxy-disabled builds + + Closes #8350 + +- conncache: make conncache_add_bundle return the pointer + + Simplifies the logic a little and avoids a ternary operator. + + Ref: #8346 + Closes #8349 + +- mailmap: neutric on github + +Jay Satiro (30 Jan 2022) +- [neutric on github brought this change] + + docs/TheArtOfHttpScripting: fix example POST URL + + Closes https://github.com/curl/curl/pull/8352 + +Daniel Stenberg (28 Jan 2022) +- nss: handshake callback during shutdown has no conn->bundle + + The callback gets called because of the call to PR_Recv() done to + attempt to avoid RST on the TCP connection. The conn->bundle pointer is + already cleared at this point so avoid dereferencing it. + + Reported-by: Eric Musser + Fixes #8341 + Closes #8342 + +- [Michał Antoniak brought this change] + + mbedtls: remove #include + + mbedtls/certs.h file contains only certificates example (all definitions + is beginning by mbedtls_test_*). None of them is used so we can avoid + include the file. + + Closes #8343 + +- [Michał Antoniak brought this change] + + mbedtls: enable use of mbedtls without CRL support + + Closes #8344 + +- [Bernhard Walle brought this change] + + configure: set CURL_LIBRARY_PATH for nghttp2 + + To execute the test program, we might need the library path so that the + lib is found at runtime. + + Closes #8340 + +Jay Satiro (28 Jan 2022) +- schannel: restore debug message in schannel_connect_step2 + + This is a follow-up to recent commit 2218c3a which removed the debug + message to avoid an unused variable warning. The message has been + reworked to avoid the warning. + + Ref: https://github.com/curl/curl/pull/8320#issuecomment-1022957904 + + Closes https://github.com/curl/curl/pull/8336 + +- test3021: disable all msys2 path transformation + + - Disable all MSYS2 path transformation in test3021 and test3022. + + Prior to this change path transformation in those tests was disabled + only for arguments that start with forward slashes. However arguments + that are in base64 contain forward slashes at any position and caused + unwanted translations. + + == Info: Denied establishing ssh session: mismatch sha256 fingerprint. + Remote +/EYG2YDzDGm6yiwepEMSuExgRRMoTi8Di1UN3kixZw= is not equal to + +C:/msys64/EYG2YDzDGm6yiwepEMSuExgRRMoTi8Di1UN3kixZw + + In the above example an argument containing a base64 sha256 fingerprint + was passed to curl after MSYS2 translated +/ into +C:/msys64/, and then + the fingerprint didn't match what was expected. + + Ref: https://www.msys2.org/wiki/Porting/ + + Fixes https://github.com/curl/curl/issues/8084 + Closes https://github.com/curl/curl/pull/8325 + +Daniel Stenberg (27 Jan 2022) +- CI: move scan-build job from Zuul to Azure Pipelines + + Closes #8338 + +Marcel Raad (27 Jan 2022) +- openssl: fix `ctx_option_t` for OpenSSL v3+ + + The options have been changed to `uint64_t` in + https://github.com/openssl/openssl/commit/56bd17830f2d5855b533d923d4e0649d3ed61d11. + + Closes https://github.com/curl/curl/pull/8331 + +Daniel Stenberg (27 Jan 2022) +- CI: move 'distcheck' job from zuul to azure pipelines + + Assisted-by: Kushal Das + + Closes #8334 + +- vtls: pass on the right SNI name + + The TLS backends convert the host name to SNI name and need to use that. + This involves cutting off any trailing dot and lowercasing. + + Co-authored-by: Jay Satiro + Closes #8320 + +- url: revert the removal of trailing dot from host name + + Reverts 5de8d84098db1bd24e (May 2014, shipped in 7.37.0) and the + follow-up changes done afterward. + + Keep the dot in names for everything except the SNI to make curl behave + more similar to current browsers. This means 'name' and 'name.' send the + same SNI for different 'Host:' headers. + + Updated test 1322 accordingly + + Fixes #8290 + Reported-by: Charles Cazabon + Closes #8320 + +- [neutric on github brought this change] + + docs/TheArtOfHttpScripting: fix capitalization + + Closes #8333 + +- tests/memanalyze.pl: also count and show "total allocations" + + This is the total number of bytes allocated, increasing for new + allocations and never reduced when freed. The existing "Maximum + allocated" is the high water mark. + + Closes #8330 + +- mailmap: spellfix githuh => github + +- RELEASE-NOTES: synced + +- hostcheck: fixed to not touch used input strings + + Avoids the need to clone the strings before check, thus avoiding + mallocs, which for cases where there are many SAN names in a cert could + end up numerous. + + Closes #8321 + +- ngtcp2: adapt to changed end of headers callback proto + + Closes #8322 + +- [Xiaoke Wang brought this change] + + openssl: check SSL_get_ex_data to prevent potential NULL dereference + + Closes #8268 + +Jay Satiro (23 Jan 2022) +- md5: check md5_init_func return value + + Prior to this change the md5_init_func (my_md5_init) return value was + ignored. + + Closes https://github.com/curl/curl/pull/8319 + +- md5: refactor for standard compliance + + - Wrap OpenSSL / wolfSSL MD5 functions instead of taking their function + addresses during static initialization. + + Depending on how curl was built the old way may have used a dllimport + function address during static initialization, which is not standard + compliant, resulting in Visual Studio warning C4232 (nonstandard + extension). Instead the function pointers now point to the wrappers + which call the MD5 functions. + + This change only affects OpenSSL and wolfSSL because calls to other SSL + libraries' md5 functions were already wrapped. Also sha256.c already + does this for all SSL libraries. + + Ref: https://github.com/curl/curl/pull/8298 + + Closes https://github.com/curl/curl/pull/8318 + +Daniel Stenberg (21 Jan 2022) +- [Lucas Pardue brought this change] + + docs: update IETF links to use datatracker + + The tools.ietf.org domain has been deprecated a while now, with the + links being redirected to datatracker.ietf.org. + + Rather than make people eat that redirect time, this change switches the + URL to a more canonical source. + + Closes #8317 + +- [Harry Sarson brought this change] + + CI: test building wolfssl with --enable-opensslextra + + Closes #8315 + +- [Harry Sarson brought this change] + + misc: allow curl to build with wolfssl --enable-opensslextra + + put all #include of openssl files behind wolfssl ifdefs so that we can + use the wolfssl/ prefixed include paths. Without these curl only builds + when wolfssl is built with enable-all. + + Fixes #8292 + Closes #8315 + +- [Lucas Pardue brought this change] + + quiche: change qlog file extension to `.sqlog` + + quiche has just switched it's qlog serialization format to JSON-SEQ by + default . The spec says this SHOULD use `.sqlog` extension. + + I believe ngtcp2 also supports JSON-SEQ by default as of + https://github.com/ngtcp2/ngtcp2/commit/9baf06fc3f352a1d062b6953ae1de22cae30639d + + Let's update curl so that tools know what format we are using! + + Closes #8316 + +Jay Satiro (21 Jan 2022) +- projects: Fix Visual Studio wolfSSL configurations + + - Change build-wolfssl.bat to disable SSLv3, enable TLSv1.3, enable + wolfSSL_DES_ecb_encrypt (needed by NTLM) and enable alt cert chains. + + - Disable warning C4214 'bit field types other than int'. + + - Add include directory wolfssl\wolfssl. + + wolfSSL offers OpenSSL API compatibility that libcurl uses, and some + recent change in libcurl included an include file for wolfSSL like + openssl/foo.h, which has a path like wolfssl\wolfssl\openssl\foo.h. + + The include directory issue was reported in #8292 but it's currently + unclear whether this type of change is needed for other build systems. + + Bug: https://github.com/curl/curl/issues/8292 + Reported-by: Harry Sarson + + Closes https://github.com/curl/curl/pull/8298 + +Daniel Stenberg (21 Jan 2022) +- openssl: return error if TLS 1.3 is requested when not supported + + Previously curl would just silently ignore it if the necessary defines + are not present at build-time. + + Reported-by: Stefan Eissing + Fixes #8309 + Closes #8310 + +- TODO: Passing NOTIFY option to CURLOPT_MAIL_RCPT + + Closes #8232 + +- [Philip H brought this change] + + workflows/wolfssl: install impacket + + needed Python Package for SMB tests + + Closes #8307 + +- url: make Curl_disconnect return void + + 1. The function would only ever return CURLE_OK anyway + 2. Only one caller actually used the return code + 3. Most callers did (void)Curl_disconnect() + + Closes #8303 + +- docs: document HTTP/2 not insisting on TLS 1.2 + + Both for --http2 and CURLOPT_HTTP_VERSION. + + Reported-by: jhoyla on github + Fixes #8235 + Closes #8300 + +- cmdline-opts/gen.pl: fix option matching to improve references + + Previously it could mistakenly match partial names when there are + options that start with the same prefix, leading to the wrong references + used. + + Closes #8299 + +- TODO: Less memory massaging with Schannel + +- [Patrick Monnerat brought this change] + + runtests.pl: disable debuginfod + + Valgrind and gdb implement this feature: as this highly slows down tests, + disable it. + + Closes #8291 + +- RELEASE-NOTES: synced + +- CURLMOPT_TIMERFUNCTION/DATA.3: fix the examples + + ... to not call libcurl recursively back. + + Closes #8286 + +- multi: set in_callback for multi interface callbacks + + This makes most libcurl functions return error if called from within a + callback using the same multi handle. For example timer or socket + callbacks calling curl_multi_socket_action. + + Reported-by: updatede on github + Fixes #8282 + Closes #8286 + +- docs/HISTORY.md: mention alt-svc and HSTS + +- misc: remove the final watcom references + + Follow-up to bbf8cae44dedc495e6 + + We removed support for the watcom builds files back in September + 2020. This removes all remaining watcom references and ifdefs. + + Closes #8287 + +- misc: remove BeOS code and references + + There has not been a mention of this OS in any commit since December + 2004 (58f4af7973e3d2). The OS is also long gone. + + Closes #8288 + +- tool_getparam: DNS options that need c-ares now fail without it + + Just silently accepting the options and then not having any effect is + not good. + + Ref: #8283 + Closes #8285 + +- curl: remove "separators" (when using globbed URLs) + + Unless muted (with -s) When doing globbing, curl would output mime-like + separators between the separate transfers. This is not documented + anywhere, surprises users and clobbers the output. Gone now. + + Updated test 18 and 1235 + + Reported-by: jonny112 on github + Bug: https://github.com/curl/curl/discussions/8257 + Closes #8278 + +Jay Satiro (15 Jan 2022) +- [Niels Martignène brought this change] + + mbedtls: fix CURLOPT_SSLCERT_BLOB (again) + + - Increase the buffer length passed to mbedtls_x509_crt_parse to account + for the null byte appended to the temporary blob. + + Follow-up to 867ad1c which uses a null terminated copy of the + certificate blob, because mbedtls_x509_crt_parse requires PEM data + to be null terminated. + + Ref: https://github.com/curl/curl/commit/867ad1c#r63439893 + Ref: https://github.com/curl/curl/pull/8146 + + Closes https://github.com/curl/curl/pull/8260 + +Daniel Stenberg (15 Jan 2022) +- [Alessandro Ghedini brought this change] + + quiche: verify the server cert on connect + + Similarly to c148f0f551f9bea0e3d0, make quiche correctly acknowledge + `CURLOPT_SSL_VERIFYPEER` and `CURLOPT_SSL_VERIFYHOST`. + + Fixes #8173 + Closes #8275 + +- [Ikko Ashimine brought this change] + + checksrc: fix typo in comment + + enfore -> enforce + + Closes #8281 + +- curl-openssl: remove the OpenSSL headers and library versions check + + It is more work to maintain that check than the (any?) benefit it + brings. + + Fixes #8279 + Reported-by: Satadru Pramanik + Closes #8280 + +- mqtt: free any leftover when done + + Oss-fuzz found an issue when the "sendleftovers" pointer could leak memory. + Fix this by always freeing it (if still assigned) in the done function. + + Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43515 + Closes #8274 + +- formdata: avoid size_t => long typecast overflows + + Typically a problem for platforms with 32 bit long and 64 bit size_t + + Reported-by: Fabian Yamaguchi + Bug: https://hackerone.com/reports/1444539 + Closes #8272 + +- RELEASE-NOTES: synced + + bump next release to become 7.82.0 + +Marcel Raad (13 Jan 2022) +- build: enable -Warith-conversion + + This makes the behavior consistent between GCC 10 and earlier versions. + + Closes https://github.com/curl/curl/pull/8271 + +- build: fix -Wenum-conversion handling + + Don't enable that warning when warnings are disabled. + Also add it to CMake. + + Closes https://github.com/curl/curl/pull/8271 + +- appveyor: use VS 2017 image for the autotools builds + + The newer images don't have all required MSYS2 packages. + + Fixes https://github.com/curl/curl/issues/8248 + Closes https://github.com/curl/curl/pull/8265 + +- appveyor: update images from VS 2019 to 2022 + + Closes https://github.com/curl/curl/pull/8265 + +Daniel Stenberg (12 Jan 2022) +- [Michał Antoniak brought this change] + + mbedtls: return CURLcode result instead of a mbedtls error code + + ... when a certificate fails to be loaded from a blob + + Closes #8266 + +- curl_multi_socket.3: remove callback and typical usage descriptions + + 1. The callback is better described in the option for setting it. Having + it in a single place reduces the risk that one of them is wrong. + + 2. The "typical usage" is wrong since the functions described in this + man page are both deprecated so they cannot be used in any "typical" way + anymore. + + Closes #8262 + +- curl-functions.m4: revert DYLD_LIBRARY_PATH tricks in CURL_RUN_IFELSE + + Mostly reverts ba0657c343f, but now instead just run the plain macro on + darwin. The approach as used on other platforms is simply not necessary + on macOS. + + Fixes #8229 + Reported-by: Ryan Schmidt + Closes #8247 + +- [Patrick Monnerat brought this change] + + openldap: implement SASL authentication + + As credentials can be quite different depending on the mechanism used, + there are no default mechanisms for LDAP and simple bind with a DN is + then used. + + The caller has to provide mechanism(s) using CURLOPT_LOGIN_OPTIONS to + enable SASL authentication and disable simple bind. + + Closes #8152 + +Jay Satiro (10 Jan 2022) +- [Cameron Will brought this change] + + CURLOPT_RESOLVE.3: change example port to 443 + + 83cc966 changed documentation from using http to https. However, + CURLOPT_RESOLVE being set to port 80 in the documentation means that it + isn't valid for the new URL. Update to 443. + + Closes https://github.com/curl/curl/pull/8258 + +Daniel Stenberg (10 Jan 2022) +- [Fabian Keil brought this change] + + test374: gif data without new line at the end + + Closes #8239 + +- [Fabian Keil brought this change] + + runtests.pl: support the nonewline attribute for the data part + + Added to FILEFORMAT + + Closes #8239 + +- [Patrick Monnerat brought this change] + + curl tool: erase some more sensitive command line arguments + + As the ps command may reveal sensitive command line info, obfuscate + options --tlsuser, --tlspasswd, --proxy-tlsuser, --proxy-tlspassword and + --oauth2-bearer arguments. + + Reported-by: Stephen Boost + + Closes #7964 + +- mesalink: remove support + + Mesalink has ceased development. We can no longer encourage use of it. + It seems to be continued under the name TabbySSL, but no attempts have + (yet) been to make curl support it. + + Fixes #8188 + Closes #8191 + +- ldap: return CURLE_URL_MALFORMAT for bad URL + + For consistency, use the same return code for URL malformats, + independently of what scheme that is used. Previously this would return + CURLE_LDAP_INVALID_URL, but starting now that error cannot be returned. + + Closes #8170 + +- docs/cmdline-opts: add "mutexed" options for more http versions + + Update four http version man page sections. + + Closes #8254 + +- [Stephen M. Coakley brought this change] + + rustls: add CURLOPT_CAINFO_BLOB support + + Add support for `CURLOPT_CAINFO_BLOB` `CURLOPT_PROXY_CAINFO_BLOB` to the + rustls TLS backend. Multiple certificates in a single PEM string are + supported just like OpenSSL does with this option. + + This is compatible at least with rustls-ffi 0.8+ which is our new + minimum version anyway. + + I was able to build and run this on Windows, pulling trusted certs from + the system and then add them to rustls by setting + `CURLOPT_CAINFO_BLOB`. Handy! + + Closes #8255 + +- scripts/copyright.pl: ignore missing files + +- RELEASE-NOTES: synced + +- data/DISABLED: disable test 313 for wolfssl builds + + It was previously disabled only in the CI jobs yaml + + Closes #8252 + +- runtests: make 'wolfssl' a testable feature + + Closes #8252 + +- GHA: install stunnel in the medbtls + wolfssl CI jobs + + Closes #8252 + +- CI: move the rustls CI job to GHA from Zuul + + Closes #8251 + +- DISABLE: disable a dozen tests in the rustls build + + Disables tests that don't yet work with the rustls backend. + + Fixes #8004 + Closes #8250 + +- runtests: make 'rustls' a testable feature + +- remote-header-name.d: clarify + + - it strips off the path from the server provided name + - it saves in current directory or --output-dir + + Ref: https://curl.se/mail/archive-2022-01/0032.html + Closes #8249 + +- url: given a user in the URL, find pwd for that user in netrc + + Add test 380 and 381 to verify, edited test 133 + + Reported-by: Manfred Schwarb + Fixes #8241 + Closes #8243 + +- [Niels Martignène brought this change] + + mbedtls: Fix ssl_init error with mbedTLS 3.1.0+ + + Since mbedTLS 3.1.0, mbedtls_ssl_setup() fails if the provided + config struct is not valid. + + mbedtls_ssl_config_defaults() needs to be called before the config + struct is passed to mbedtls_ssl_setup(). + + Closes #8238 + +- [Filip Lundgren brought this change] + + cmake: fix iOS CMake project generation error + + Closes #8244 + +- ngtcp2: fix declaration of ‘result’ shadows a previous local + + Follow-up to 8fbd6feddfa587cfd3 + + Closes #8245 + +- openssl.h: avoid including OpenSSL headers here + + ... by instead using the struct version of the typedef'ed pointer. To + fix build errors when both Schannel and OpenSSL are enabled. + + Fixes #8240 + Reported-by: Jan Ehrhardt + Closes #8246 + +- curl_url_set.3: mention when CURLU_ALLOW_SPACE was added + +- tool_findfile: free mem properly + + Follow-up to 764e4f066d5 + + Closes #8242 + +- tool_findfile: check ~/.config/curlrc too + + ... after the initial checks for .curlrc and if XDG_CONFIG_HOME is not + set, use $HOME and $CURL_HOME to check if ~/.config/curlrc is present. + + Add test 436 to verify + + Reported-by: Sandro Jaeckel + Fixes #8208 + Closes #8213 + +- runtests: allow client/file to specify multiple directories + + ... and make sure to mkdir them all + +- scripts/copyright.pl: support many provided file names on the cmdline + +- [Fabian Keil brought this change] + + tests/FILEFORMAT.md: fix typo + +- [Fabian Keil brought this change] + + Add test373: multiple chunks with binary zeros + +- [Fabian Keil brought this change] + + Add test372: binary zero in data element + +- [Fabian Keil brought this change] + + tests/server/getpart.c: properly deal with binary data containing NUL bytes + +- [Fabian Keil brought this change] + + runtests.pl: properly print the test if it contains binary zeros + +- mailmap: Xiaoke Wang + +- openssl: copyright year update + + Follow-up to 30aea2b1ede + +- scripts/copyright.pl: hush unless -v (for verbose) is used + +- [Xiaoke Wang brought this change] + + openssl: check the return value of BIO_new_mem_buf() + + Closes #8233 + +- examples/multi-app.c: call curl_multi_remove_handle as well + + Fixes #8234 + Reported-by: Melroy van den Berg + Closes #8236 + +- COPYING: bump copyright year range + +- RELEASE-NOTES: synced + + and bump curlver after release + +- docs: fix mandoc -T lint formatting complaints + + Closes #8228 + +- next.d. remove .fi/.nf as they are handled by gen.pl + + Closes #8228 + +- gen.pl: terminate "example" sections better + + If the example (section that is prefixed with spaces) ends the + description gen.pl would previously miss to output the terminating .fi + + Closes #8228 + +- [Satadru Pramanik brought this change] + + curl-functions.m4: fix LIBRARY_PATH adjustment to avoid eval + + $$ usage in a m4 file introduces the PID in linux. + Instead, just duplicate previous working code with a case switch. + + Fixes #8229 + Closes #8230 + +Version 7.81.0 (5 Jan 2022) + +Daniel Stenberg (5 Jan 2022) +- RELEASE-NOTES: synced + + curl 7.81.0 release + +- THANKS: add names from 7.81.0 release + +- curl_multi_init.3: fix the copyright year range + +- test719-721: require "proxy" feature present to run + + Bug: https://github.com/curl/curl/pull/8223#issuecomment-1005188696 + Reported-by: Marc Hörsken + + Closes #8226 + +- test719: require ipv6 support to run + + Follow-up to effd2bd7ba2a5fd244 + Reported-by: Marc Hörsken + Bug: https://github.com/curl/curl/pull/8217#issuecomment-1004681145 + + Closes #8223 + +- test719-721: verify SOCKS details + + Using the new verify/socks details + +- runtests: add verify/socks check + + If used, this data is compared with the data in log/socksd-request.log + which the socksd server logs. + + Added to FILEFORMAT.md + +- server/socksd: log atyp + address in a separate log + + To allow the test suite to verify that the right data arrived + +- socks5: use appropriate ATYP for numerical IP address host names + + When not resolving the address locallly (known as socks5h). + + Add test 719 and 720 to verify. + + Reported-by: Peter Piekarski + Fixes #8216 + Closes #8217 + +Jay Satiro (3 Jan 2022) +- curl_multi_init.3: fix EXAMPLE formatting + +Daniel Stenberg (3 Jan 2022) +- RELEASE-NOTES: synced + +- libtest: avoid "assignment within conditional expression" + + In lib530, lib540 and lib582 + + Closes #8218 + +- ftp: disable warning 4706 in MSVC + + Follow-up to 21248e052d + + Disabling "assignment within conditional expression" for MSVC needs to + be done before the function starts, for it to take effect. + + Closes #8218 + +- tool_operate: warn if too many output arguments were found + + More output instructions than URLs is likely a user error. + + Add test case 371 to verify + + Closes #8210 + +- .github/workflows/mbedtls.yml: bump to mbedtls 3.1.0 + + Closes #8215 + +- zuul: remove the mbedtls jobs + + Now running as github workflows + + Closes #8215 + +- github/workflows: add mbedtls and mbedtls-clang + + Closes #8215 + +- [Valentin Richter brought this change] + + mbedtls: fix private member designations for v3.1.0 + + "As a last resort, you can access the field foo of a structure bar by + writing bar.MBEDTLS_PRIVATE(foo). Note that you do so at your own risk, + since such code is likely to break in a future minor version of Mbed + TLS." - + https://github.com/ARMmbed/mbedtls/blob/f2d1199edc5834df4297f247f213e614f7782d1d/docs/3.0-migration-guide.md + + That future minor version is v3.1.0. I set the >= to == for the version + checks because v3.1.0 is a release, and I am not sure when the private + designation was reverted after v3.0.0. + + Closes #8214 + +- [Valentin Richter brought this change] + + cmake: prevent dev warning due to mismatched arg + + -- curl version=[7.81.0-DEV] + CMake Warning (dev) at /usr/share/cmake-3.22.1/Modules/FindPackageHandleStandardArgs.cmake:438 (message): + The package name passed to `find_package_handle_standard_args` (MBEDTLS) + does not match the name of the calling package (MbedTLS). This can lead to + problems in calling code that expects `find_package` result variables + (e.g., `_FOUND`) to follow a certain pattern. + Call Stack (most recent call first): + deps/curl/CMake/FindMbedTLS.cmake:31 (find_package_handle_standard_args) + deps/curl/CMakeLists.txt:473 (find_package) + This warning is for project developers. Use -Wno-dev to suppress it. + + Closes #8207 + +- urlapi: if possible, shorten given numerical IPv6 addresses + + Extended test 1560 to verify + + Closes #8206 + +- [Michał Antoniak brought this change] + + url: reduce ssl backend count for CURL_DISABLE_PROXY builds + + Closes #8212 + +- KNOWN_BUGS: "Trying local ports fails on Windows" + + Reported-by: gclinch on github + Closes #8112 + +- misc: update copyright year range + +- zuul: remove the wolfssl even more + + Follow-up to 1914465cf180d32b3d + +- examples/multi-single.c: remove WAITMS() + + As it isn't used. + + Reported-by: Melroy van den Berg + Fixes #8200 + Closes #8201 + +- gtls: add gnutls include for the session type + + Follow-up to 8fbd6feddfa5 to make it build more universally + +- m4/curl-compilers: tell clang -Wno-pointer-bool-conversion + + To hush compiler warnings we don't care for: error: address of function + 'X' will always evaluate to 'true' + + Fixes #8197 + Closes #8198 + +- http_proxy: don't close the socket (too early) + + ... and double-check in the OpenSSL shutdown that the socket is actually + still there before it is used. + + Fixes #8193 + Closes #8195 + + Reported-by: Leszek Kubik + +- ngtcp2: verify the server certificate for the gnutls case + + Closes #8178 + +- ngtcp2: verify the server cert on connect (quictls) + + Make ngtcp2+quictls correctly acknowledge `CURLOPT_SSL_VERIFYPEER` and + `CURLOPT_SSL_VERIFYHOST`. + + The name check now uses a function from lib/vtls/openssl.c which will + need attention for when TLS is not done by OpenSSL or is disabled while + QUIC is enabled. + + Possibly the servercert() function in openssl.c should be adjusted to be + able to use for both regular TLS and QUIC. + + Ref: #8173 + Closes #8178 + +- zuul: remove the wolfssl build + +- github workflow: add wolfssl + + Closes #8196 + +- [Nicolas Sterchele brought this change] + + zuul: fix quiche build pointing to wrong Cargo + + Fixes #8184 + Closes #8189 + +- checksrc: detect more kinds of NULL comparisons we avoid + + Co-authored-by: Jay Satiro + Closes #8180 + +- RELEASE-NOTES: synced + +- mesalink: remove the BACKEND define kludge + + Closes #8183 + +- schannel: remove the BACKEND define kludge + + Closes #8182 + +- gtls: check return code for gnutls_alpn_set_protocols + + Closes #8181 + +- [Stefan Huber brought this change] + + README: label the link to the support document + + Closes #8185 + +- docs/HTTP3: describe how to setup a h3 reverse-proxy for testing + + Assisted-by: Matt Holt + + Closes #8177 + +- libcurl-multi.3: "SOCKS proxy handshakes" are not blocking + + Since 4a4b63daaa0 + +- [Vladimir Panteleev brought this change] + + tests: Add test for CURLOPT_HTTP200ALIASES + +- [Vladimir Panteleev brought this change] + + http: Fix CURLOPT_HTTP200ALIASES + + The httpcode < 100 check was also triggered when none of the fields were + parsed, thus making the if(!nc) block unreachable. + + Closes #8171 + +- RELEASE-NOTES: synced + +- language: "email" + + Missed three occurrences. + + Follow-up to 7a92f86 + +- nss:set_cipher don't clobber the cipher list + + The string is set by the user and needs to remain intact for proper + connection reuse etc. + + Reported-by: Eric Musser + Fixes #8160 + Closes #8161 + +- misc: s/e-mail/email + + Consistency is king. Following the lead in everything curl. + + Closes #8159 + +- [Tobias Nießen brought this change] + + docs: fix typo in OpenSSL 3 build instructions + + Closes #8162 + +- linkcheck.yml: add CI job that checks markdown links + + Closes #8158 + +- RELEASE-PROCEDURE.md: remove ICAL link and old release dates + +- BINDINGS.md: "markdown-link-check-disable" + + It feels a bit unfortunate to litter an ugly tag for this functionality, + but if we get link scans of all markdown files, this might be worth the + price. + +- docs: fix dead links, remove ECH.md + +Jay Satiro (16 Dec 2021) +- openssl: define HAVE_OPENSSL_VERSION for OpenSSL 1.1.0+ + + Prior to this change OpenSSL_version was only detected in configure + builds. For other builds the old version parsing code was used which + would result in incorrect versioning for OpenSSL 3: + + Before: + + curl 7.80.0 (i386-pc-win32) libcurl/7.80.0 OpenSSL/3.0.0a zlib/1.2.11 + WinIDN libssh2/1.9.0 + + After: + + curl 7.80.0 (i386-pc-win32) libcurl/7.80.0 OpenSSL/3.0.1 zlib/1.2.11 + WinIDN libssh2/1.9.0 + + Reported-by: lllaffer@users.noreply.github.com + + Fixes https://github.com/curl/curl/issues/8154 + Closes https://github.com/curl/curl/pull/8155 + +Daniel Stenberg (16 Dec 2021) +- [James Fuller brought this change] + + docs: add known bugs list to HTTP3.md + + Closes #8156 + +Dan Fandrich (15 Dec 2021) +- BINDINGS: add one from Everything curl and update a link + +- libcurl-security.3: mention address and URL mitigations + + The new CURLOPT_PREREQFUNCTION callback is another way to sanitize + addresses. + Using the curl_url API is a way to mitigate against attacks relying on + URL parsing differences. + +Daniel Stenberg (15 Dec 2021) +- RELEASE-NOTES: synced + +- x509asn1: return early on errors + + Overhaul to make sure functions that detect errors bail out early with + error rather than trying to continue and risk hiding the problem. + + Closes #8147 + +- [Patrick Monnerat brought this change] + + openldap: several minor improvements + + - Early check proper LDAP URL syntax. Reject URLs with a userinfo part. + - Use dynamic memory for ldap_init_fd() URL rather than a + stack-allocated buffer. + - Never chase referrals: supporting it would require additional parallel + connections and alternate authentication credentials. + - Do not wait 1 microsecond while polling/reading query response data. + - Store last received server code for retrieval with CURLINFO_RESPONSE_CODE. + + Closes #8140 + +- [Michał Antoniak brought this change] + + misc: remove unused doh flags when CURL_DISABLE_DOH is defined + + Closes #8148 + +- mbedtls: fix CURLOPT_SSLCERT_BLOB + + The memory passed to mbedTLS for this needs to be null terminated. + + Reported-by: Florian Van Heghe + Closes #8146 + +- asyn-ares: ares_getaddrinfo needs no happy eyeballs timer + + Closes #8142 + +- mailmap: add Yongkang Huang + + From #8141 + +- [Yongkang Huang brought this change] + + check ssl_config when re-use proxy connection + +- mbedtls: do a separate malloc for ca_info_blob + + Since the mbedTLS API requires the data to the null terminated. + + Follow-up to 456c53730d21b1fad0c7f72c1817 + + Fixes #8139 + Closes #8145 + +Marc Hoersken (14 Dec 2021) +- CI: build examples for additional code verification + + Some CIs already build them, let's do it on more of them. + + Reviewed-by: Daniel Stenberg + + Follow up to #7690 and 77311f420a541a0de5b3014e0e40ff8b4205d4af + Replaces #7591 + Closes #7922 + +- docs/examples: workaround broken -Wno-pedantic-ms-format + + Avoid CURL_FORMAT_CURL_OFF_T by using unsigned long instead. + Improve size_t to long conversion in imap-append.c example. + + Ref: https://github.com/curl/curl/issues/6079 + Ref: https://github.com/curl/curl/pull/6082 + Assisted-by: Jay Satiro + Reviewed-by: Daniel Stenberg + + Preparation of #7922 + +- tests/data/test302[12]: fix MSYS2 path conversion of hostpubsha256 + + Ref: https://www.msys2.org/wiki/Porting/#filesystem-namespaces + + Reviewed-by: Marcel Raad + Reviewed-by: Jay Satiro + + Fixes #8084 + Closes #8138 + +Daniel Stenberg (13 Dec 2021) +- [Patrick Monnerat brought this change] + + openldap: simplify ldif generation code + + and take care of zero-length values, avoiding conversion to base64 + and/or trailing spaces. + + Closes #8136 + +- example/progressfunc: remove code for old libcurls + + 7.61.0 is over three years old now, remove all #ifdefs for handling + ancient libcurl versions so that the example gets easier to read and + understand + + Closes #8137 + +- [Xiaoke Wang brought this change] + + sha256/md5: return errors when init fails + + Closes #8133 + +- TODO: 13.3 Defeat TLS fingerprinting + + Closes #8119 + +- RELEASE-NOTES: synced + +- [Patrick Monnerat brought this change] + + openldap: process search query response messages one by one + + Upon receiving large result sets, this reduces memory consumption and + allows starting to output results while the transfer is still in + progress. + + Closes #8101 + +- hash: lazy-alloc the table in Curl_hash_add() + + This makes Curl_hash_init() infallible which saves error paths. + + Closes #8132 + +- multi: cleanup the socket hash when destroying it + + Since each socket hash entry may themselves have a hash table in them, + the destroying of the socket hash needs to make sure all the subhashes + are also correctly destroyed to avoid leaking memory. + + Fixes #8129 + Closes #8131 + +- test1156: fixup the stdout check for Windows + + It is not text mode. + + Follow-up to 6f73e68d182 + + Closes #8134 + +- test1528: enable for hyper + + Closes #8128 + +- test1527: enable for hyper + + Closes #8128 + +- test1526: enable for hyper + + Closes #8128 + +- test1525: slightly tweaked for hyper + + Closes #8128 + +- test1156: enable for hyper + + Minor reorg of the lib1156 code and it works fine for hyper. + + Closes #8127 + +- test661: enable for hyper + + Closes #8126 + +- docs: fix proselint nits + + - remove a lot of exclamation marks + - use consistent spaces (1, not 2) + - use better words at some places + + Closes #8123 + +- [RekGRpth brought this change] + + BINDINGS.md: add cURL client for PostgreSQL + + Closes #8125 + +- [RekGRpth brought this change] + + CURLSHOPT_USERDATA.3: fix copy-paste mistake + + Closes #8124 + +- docs: fix minor nroff format nits + + Repairs test 1140 + + Follow-up to 436cdf82041 + +- docs/URL-SYNTAX.md: space is not fine in a given URL + +- curl_multi_perform/socket_action.3: clarify what errors mean + + An error returned from one of these funtions mean that ALL still ongoing + transfers are to be considered failed. + + Ref: #8114 + Closes #8120 + +- libcurl-errors.3: add CURLM_ABORTED_BY_CALLBACK + + Follow-up to #8089 (2b3dd01) + + Closes #8116 + +- hash: add asserts to help detect bad usage + + For example trying to add entries after the hash has been "cleaned up" + + Closes #8115 + +- lib530: abort on curl_multi errors + + This makes torture tests run more proper. + + Also add an assert to trap situations where it would end up with no + sockets to wait for. + + Closes #8121 + +- FAQ: we never pronounced it "see URL", we say "kurl" + +- RELEASE-NOTES: synced + +- CURLOPT_RESOLVE.3: minor polish + + Minor rephrasing for some explanations. + + Put the format strings in stand-alone lines with .nf/.fi to be easier to spot. + + Move "added in" to AVAILABILITY + + Closed #8110 + +- test1556: adjust for hyper + + Closes #8105 + +- test1554: adjust for hyper + + Closes #8104 + +- retry-all-errors.d: make the example complete + + ... as it needs --retry too to work + +- TODO: 5.7 Require HTTP version X or higher + + Closes #7980 + +- CURLOPT_STDERR.3: does not work with libcurl as a win32 DLL + + This is the exact same limitation already documented for + CURLOPT_WRITEDATA but should be clarified here. It also has a different + work-around. + + Reported-by: Stephane Pellegrino + Bug: https://github.com/curl/curl/issues/8102 + Closes #8103 + +- multi: handle errors returned from socket/timer callbacks + + The callbacks were partially documented to support this. Now the + behavior is documented and returning error from either of these + callbacks will effectively kill all currently ongoing transfers. + + Added test 530 to verify + + Reported-by: Marcelo Juchem + Fixes #8083 + Closes #8089 + +- http2:set_transfer_url() return early on OOM + + If curl_url() returns NULL this should return early to avoid mistakes - + even if right now the subsequent function invokes are all OK. + + Coverity (wrongly) pointed out this as a NULL deref. + + Closes #8100 + +- tool_parsecfg: use correct free() call to free memory + + Detected by Coverity. CID 1494642. + Follow-up from 2be1aa619bca + + Closes #8099 + +- tool_operate: fix potential memory-leak + + A 'CURLU *' would leak if url_proto() is called with no URL. + + Detected by Coverity. CID 1494643. + Follow-up to 18270893abdb19 + Closes #8098 + +- [Patrick Monnerat brought this change] + + openldap: implement STARTTLS + + As this introduces use of CURLOPT_USE_SSL option for LDAP, also check + this option in ldap.c as it is not supported by this backend. + + Closes #8065 + +- [Jun Tseng brought this change] + + curl_easy_unescape.3: call curl_easy_cleanup in example + + Closes #8097 + +- [Jun Tseng brought this change] + + curl_easy_escape.3: call curl_easy_cleanup in example + + Closes #8097 + +- tool_listhelp: sync + + Follow-up to 172068b76f + +- [Damien Walsh brought this change] + + request.d: refer to 'method' rather than 'command' + + Closes #8094 + +- RELEASE-NOTES: synced + +- writeout: fix %{http_version} for HTTP/3 + + Output "3" properly when HTTP/3 was used. + + Reported-by: Bernat Mut + Fixes #8072 + Closes #8092 + +- urlapi: accept port number zero + + This is a regression since 7.62.0 (fb30ac5a2d). + + Updated test 1560 accordingly + + Reported-by: Brad Fitzpatrick + Fixes #8090 + Closes #8091 + +- [Mark Dodgson brought this change] + + lift: ignore is a deprecated config option, use ignoreRules + + Closes #8082 + +- [Alessandro Ghedini brought this change] + + HTTP3: update quiche build instructions + + The repo repo was re-organized a bit, so the build instructions need to + be updated. + + Closes #8076 + +- CURLMOPT_TIMERFUNCTION.3: call it expire time, not interval + + Since we say it is a non-repating timer + +- [Florian Van Heghe brought this change] + + mbedTLS: include NULL byte in blob data length for CURLOPT_CAINFO_BLOB + + Fixes #8079 + Closes #8081 + +Jay Satiro (2 Dec 2021) +- [Wyatt O'Day brought this change] + + version_win32: Check build number and platform id + + Prior to this change the build number was not checked during version + comparison, and the platform id was supposed to be checked but wasn't. + + Checking the build number is required for enabling "evergreen" + Windows 10/11 features (like TLS 1.3). + + Ref: https://github.com/curl/curl/pull/7784 + + Closes https://github.com/curl/curl/pull/7824 + Closes https://github.com/curl/curl/pull/7867 + +- libssh2: fix error message for sha256 mismatch + + - On mismatch error show sha256 fingerprint in base64 format. + + Prior to this change the fingerprint was mistakenly printed in binary. + +Daniel Stenberg (1 Dec 2021) +- [Xiaoke Wang brought this change] + + openssl: check the return value of BIO_new() + + Closes #8078 + +Dan Fandrich (30 Nov 2021) +- docs: Update the Reducing Size section + + Add many more options that can reduce the size of the binary that were + added since the last update. Update the sample minimal binary size for + version 7.80.0. + +- tests: Add some missing keywords to tests + + These are needed to skip some tests when configure options have disabled + certain features. + +Daniel Stenberg (30 Nov 2021) +- [Florian Van Heghe brought this change] + + mbedTLS: add support for CURLOPT_CAINFO_BLOB + + Closes #8071 + +- [Glenn Strauss brought this change] + + digest: compute user:realm:pass digest w/o userhash + + https://datatracker.ietf.org/doc/html/rfc7616#section-3.4.4 + ... the client MUST calculate a hash of the username after + any other hash calculation ... + + Signed-off-by: Glenn Strauss + Closes #8066 + +- config.d: update documentation to match the path search + + Assisted-by: Jay Satiro + +- tool_findfile: search for a file in the homedir + + The homedir() function is now renamed into findfile() and iterates over + all the environment variables trying to access the file in question + until it finds it. Last resort is then getpwuid() if + available. Previously it would first try to find a home directory and if + that was set, insist on checking only that directory for the file. This + now returns the full file name it finds. + + The Windows specific checks are now done differently too and in this + order: + + 1 - %USERPROFILE% + 2 - %APPDATA% + 3 - %USERPROFILE%\\Application Data + + The windows order is modified to match how the Windows 10 ssh tool works + when it searches for .ssh/known_hosts. + + Reported-by: jeffrson on github + Co-authored-by: Jay Satiro + Fixes #8033 + Closes #8035 + +- docs: consistent manpage SYNOPSIS + + Make all libcurl related options use .nf (no fill) for the SYNOPSIS + section - for consistent look. roffit then renders that section using + 
 (monospace font) in html for the website.
+  
+  Extended manpage-syntax (test 1173) with a basic check for it.
+  
+  Closes #8062
+
+- RELEASE-NOTES: synced
+
+- [Patrick Monnerat brought this change]
+
+  openldap: handle connect phase with a state machine
+  
+  Closes #8054
+
+- docs: address proselint nits
+  
+  - avoid exclamation marks
+  - use consistent number of spaces after periods: one
+  - avoid clichés
+  - avoid using 'very'
+  
+  Closes #8060
+
+- [Bruno Baguette brought this change]
+
+  FAQ: typo fix : "yout" ➤ "your"
+  
+  Closes #8059
+
+- [Bruno Baguette brought this change]
+
+  docs/INSTALL.md: typo fix : added missing "get" verb
+  
+  Closes #8058
+
+- insecure.d: detail its use for SFTP and SCP as well
+  
+  Closes #8056
+
+Viktor Szakats (25 Nov 2021)
+- Makefile.m32: rename -winssl option to -schannel and tidy up
+  
+  - accept `-schannel` as an alternative to `CFG` option `-winssl`
+    (latter still accepted, but deprecated)
+  - rename internal variable `WINSSL` to `SCHANNEL`
+  - make the `CFG` option evaluation shorter, without repeating the option
+    name
+  
+  Reviewed-by: Marcel Raad
+  Reviewed-by: Daniel Stenberg
+  Closes #8053
+
+Daniel Stenberg (25 Nov 2021)
+- KNOWN_BUGS: 5.6 make distclean loops forever
+  
+  Reported-by: David Bohman
+  Closes #7716
+
+- KNOWN_BUGS: add one, remove one
+  
+  - 5.10 SMB tests fail with Python 2
+  
+  Just use python 3.
+  
+  + 5.10 curl hangs on SMB upload over stdin
+  
+  Closes #7896
+
+- urlapi: provide more detailed return codes
+  
+  Previously, the return code CURLUE_MALFORMED_INPUT was used for almost
+  30 different URL format violations. This made it hard for users to
+  understand why a particular URL was not acceptable. Since the API cannot
+  point out a specific position within the URL for the problem, this now
+  instead introduces a number of additional and more fine-grained error
+  codes to allow the API to return more exactly in what "part" or section
+  of the URL a problem was detected.
+  
+  Also bug-fixes curl_url_get() with CURLUPART_ZONEID, which previously
+  returned CURLUE_OK even if no zoneid existed.
+  
+  Test cases in 1560 have been adjusted and extended. Tests 1538 and 1559
+  have been updated.
+  
+  Updated libcurl-errors.3 and curl_url_strerror() accordingly.
+  
+  Closes #8049
+
+- urlapi: make Curl_is_absolute_url always use MAX_SCHEME_LEN
+  
+  Instad of having all callers pass in the maximum length, always use
+  it. The passed in length is instead used only as the length of the
+  target buffer for to storing the scheme name in, if used.
+  
+  Added the scheme max length restriction to the curl_url_set.3 man page.
+  
+  Follow-up to 45bcb2eaa78c79
+  
+  Closes #8047
+
+- [Jay Satiro brought this change]
+
+  cmake: warn on use of the now deprecated symbols
+  
+  Follow-up to 9108da2c26d
+  
+  Closes #8052
+
+- [Kevin Burke brought this change]
+
+  tests/CI.md: add more information on CI environments
+  
+  Fixes #8012
+  Closes #8022
+
+- cmake: private identifiers use CURL_ instead of CMAKE_ prefix
+  
+  Since the 'CMAKE_' prefix is reserved for cmake's own private use.
+  Ref: https://cmake.org/cmake/help/latest/manual/cmake-variables.7.html
+  
+  Reported-by: Boris Rasin
+  Fixes #7988
+  Closes #8044
+
+- urlapi: reject short file URLs
+  
+  file URLs that are 6 bytes or shorter are not complete. Return
+  CURLUE_MALFORMED_INPUT for those. Extended test 1560 to verify.
+  
+  Triggered by #8041
+  Closes #8042
+
+- curl: improve error message for --head with -J
+  
+  ... it now focuses on the "output of headers" combined with the
+  --remote-header-name option, as that is actually the problem. Both
+  --head and --include can output headers.
+  
+  Reported-by: nimaje on github
+  Fixes #7987
+  Closes #8045
+
+- RELEASE-NOTES: synced
+
+- [Stefan Eissing brought this change]
+
+  urlapi: cleanup scheme parsing
+  
+  Makea Curl_is_absolute_url() always leave a defined 'buf' and avoids
+  copying on urls that do not start with a scheme.
+  
+  Closes #8043
+
+- tool_operate: only set SSH related libcurl options for SSH URLs
+  
+  For example, this avoids trying to find and set the known_hosts file (or
+  warn for its absence) if SFTP or SCP are not used.
+  
+  Closes #8040
+
+- [Jacob Hoffman-Andrews brought this change]
+
+  rustls: remove comment about checking handshaking
+  
+  The comment is incorrect in two ways:
+   - It says the check needs to be last, but the check is actually first.
+   - is_handshaking actually starts out true.
+  
+  Closes #8038
+
+Marcel Raad (20 Nov 2021)
+- openssl: use non-deprecated API to read key parameters
+  
+  With OpenSSL 3.0, the parameters are read directly from the `EVP_PKEY`
+  using `EVP_PKEY_get_bn_param`.
+  
+  Closes https://github.com/curl/curl/pull/7893
+
+- openssl: reduce code duplication
+  
+  `BN_print`'s `BIGNUM` parameter has been `const` since OpenSSL 0.9.4.
+  
+  Closes https://github.com/curl/curl/pull/7893
+
+- openssl: remove `RSA_METHOD_FLAG_NO_CHECK` handling if unavailable
+  
+  The flag has been deprecated without replacement in OpenSSL 3.0.
+  
+  Closes https://github.com/curl/curl/pull/7893
+
+- openssl: remove usage of deprecated `SSL_get_peer_certificate`
+  
+  The function name was changed to `SSL_get1_peer_certificate` in OpenSSL
+  3.0.
+  
+  Closes https://github.com/curl/curl/pull/7893
+
+Daniel Stenberg (19 Nov 2021)
+- page-footer: fix typo
+  
+  Closes #8036
+
+- http: enable haproxy support for hyper backend
+  
+  This is done by having native code do the haproxy header output before
+  hyper issues its request. The little downside with this approach is that
+  we need the entire Curl_buffer_send() function built, which is otherwise
+  not used for hyper builds.
+  
+  If hyper ends up getting native support for the haproxy protocols we can
+  backpedal on this.
+  
+  Enables test 1455 and 1456
+  
+  Closes #8034
+
+- [Bernhard Walle brought this change]
+
+  configure: fix runtime-lib detection on macOS
+  
+  With a non-standard installation of openssl we get this error:
+  
+      checking run-time libs availability... failed
+      configure: error: one or more libs available at link-time are not available run-time. Libs used at link-time: -lnghttp2 -lssl -lcrypto -lssl -lcrypto -lz
+  
+  There's already code to set LD_LIBRARY_PATH on Linux, so set
+  DYLD_LIBRARY_PATH equivalent on macOS.
+  
+  Closes #8028
+
+- [Don J Olmstead brought this change]
+
+  cmake: don't set _USRDLL on a static Windows build
+  
+  Closes #8030
+
+- page-footer: document more environment variables
+  
+  ... that curl might use.
+  
+  Closes #8027
+
+- netrc.d: edit the .netrc example to look nicer
+  
+  Works nicely thanks to d1828b470f43d
+  
+  Closes #8025
+
+- tftp: mark protocol as not possible to do over CONNECT
+  
+  ... and make connect_init() refusing trying to tunnel protocols marked
+  as not working. Avoids a double-free.
+  
+  Reported-by: Even Rouault
+  Fixes #8018
+  Closes #8020
+
+- docs/cmdline-opts: do not say "protocols: all"
+  
+  Remove the lines saying "protocols: all". It makes the output in the
+  manpage look funny, and the expectation is probably by default that if
+  not anything is mentioned about protocols the option apply to them all.
+  
+  Closes #8021
+
+- curl.1: require "see also" for every documented option
+  
+  gen.pl now generates a warning if the "See Also" field is not filled in for a
+  command line option
+  
+  All command line options now provide one or more related options. 167
+  "See alsos" added!
+  
+  Closes #8019
+
+- insecure.d: expand and clarify
+  
+  Closes #8017
+
+- gen.pl: improve example output format
+  
+  Treat consecutive lines that start with a space to be "examples". They
+  are output enclosed by .nf and .fi
+  
+  Updated form.d to use this new fanciness
+  
+  Closes #8016
+
+- Revert "form-escape.d: double the back-slashes for proper man page output"
+  
+  This reverts commit a2d8eac04a4eb1d5a98cf24b4e5cec5cec565d27.
+  
+  silly me, it was intended to be one backslash!
+
+- form-escape.d: double the back-slashes for proper man page output
+
+- page-footer: add a mention of how to report bugs to the man page
+
+- RELEASE-NOTES: synced
+  
+  and bump to 7.81.0-DEV
+
+- [Patrick Monnerat brought this change]
+
+  mime: use percent-escaping for multipart form field and file names
+  
+  Until now, form field and file names where escaped using the
+  backslash-escaping algorithm defined for multipart mails. This commit
+  replaces this with the percent-escaping method for URLs.
+  
+  As this may introduce incompatibilities with server-side applications, a
+  new libcurl option CURLOPT_MIME_OPTIONS with bitmask
+  CURLMIMEOPT_FORMESCAPE is introduced to revert to legacy use of
+  backslash-escaping. This is controlled by new cli tool option
+  --form-escape.
+  
+  New tests and documentation are provided for this feature.
+  
+  Reported by: Ryan Sleevi
+  Fixes #7789
+  Closes #7805
+
+- [Kevin Burke brought this change]
+
+  zuul.d: update rustls-ffi to version 0.8.2
+  
+  This version fixes errors with ALPN negotiation in rustls, which is
+  necessary for HTTP/2 support. For more information see the rustls-ffi
+  changelog.
+  
+  Closes #8013
+
+- configure: better diagnostics if hyper is built wrong
+  
+  If hyper is indeed present in the specified directory but couldn't be
+  used to find the correct symbol, then offer a different error message to
+  better help the user understand the issue.
+  
+  Suggested-by: Jacob Hoffman-Andrews
+  Fixes #8001
+  Closes #8005
+
+- test1939: require proxy support to run
+  
+  Follow-up to f0b7099a10d1a
+  
+  Closes #8011
+
+- test302[12]: run only with the libssh2 backend
+  
+  ... as the others don't support --hostpubsha256
+  
+  Reported-by: Paul Howarth
+  Fixes #8009
+  Closes #8010
+
+- runtests: make the SSH library a testable feature
+  
+  libssh2, libssh and wolfssh
+
+- [Jacob Hoffman-Andrews brought this change]
+
+  rustls: read of zero bytes might be okay
+  
+  When we're reading out plaintext from rustls' internal buffers, we might
+  get a read of zero bytes (meaning a clean TCP close, including
+  close_notify). However, we shouldn't return immediately when that
+  happens, since we may have already copied out some plaintext bytes.
+  Break out of the loop when we get a read of zero bytes, and figure out
+  which path we're dealing with.
+  
+  Acked-by: Kevin Burke
+  
+  Closes #8003
+
+- [Jacob Hoffman-Andrews brought this change]
+
+  rustls: remove incorrect EOF check
+  
+  The update to rustls-ffi 0.8.0 changed handling of EOF and close_notify.
+  From the CHANGELOG:
+  
+  > Handling of unclean close and the close_notify TLS alert. Mirroring
+  > upstream changes, a rustls_connection now tracks TCP closed state like
+  > so: rustls_connection_read_tls considers a 0-length read from its
+  > callback to mean "TCP stream was closed by peer."  If that happens
+  > before the peer sent close_notify, rustls_connection_read will return
+  > RUSTLS_RESULT_UNEXPECTED_EOF once the available plaintext bytes are
+  > exhausted. This is useful to protect against truncation attacks. Note:
+  > some TLS implementations don't send close_notify. If you are already
+  > getting length information from your protocol (e.g. Content-Length in
+  > HTTP) you may choose to ignore UNEXPECTED_EOF so long as the number of
+  > plaintext bytes was as expected.
+  
+  That means we don't need to check for unclean EOF in `cr_recv()`,
+  because `process_new_packets()` will give us an error if appropriate.
+  
+  Closes #8003
+
+- lib1939: make it endure torture tests
+  
+  Follow-up to f0b7099a10d1a
+  
+  Closes #8007
+
+- azure: make the "w/o HTTP/SMTP/IMAP" build disable SSL proper
+  
+  The configure line would previously depend on a configure mistake using
+  --without-openssl that is fixed and now this configure line needs
+  adjusting to use --without-ssl.
+  
+  Follow-up to b589696f0312d
+  
+  Closes #8006
+
+- [Jacob Hoffman-Andrews brought this change]
+
+  configure: add -lm to configure for rustls build.
+  
+  Note: The list of libraries that rustc tells us we need to include is
+  longer, but also includes some more platform-specific libraries that I
+  am not sure how to effectively incorporate. Adding just -lm seems to
+  solve an immediate problem, so I'm adding just that.
+  
+  Closes #8002
+
+- curl_share_setopt.3: refer to CURLSHOPT_USERDATA(3) properly
+
+- curl_share_setopt.3: split out options into their own manpages
+  
+  CURLSHOPT_LOCKFUNC.3
+  CURLSHOPT_SHARE.3
+  CURLSHOPT_UNLOCKFUNC.3
+  CURLSHOPT_UNSHARE.3
+  CURLSHOPT_USERDATA.3
+  
+  Closes #7998
+
+- http_proxy: make Curl_connect_done() work for proxy disabled builds
+  
+  ... by making it an empty macro then.
+  
+  Follow-up to f0b7099a10d1a
+  Reported-by: Vincent Grande
+  Fixes #7995
+  Closes #7996
+
+- Curl_connect_done: handle being called twice
+  
+  Follow-up to f0b7099a10d1a7c
+  
+  When torture testing 1021, it turns out the Curl_connect_done function
+  might be called twice and that previously then wrongly cleared the HTTP
+  pointer in the second invoke.
+  
+  Closes #7999
+
+- [Stan Hu brought this change]
+
+  configure: don't enable TLS when --without-* flags are used
+  
+  Previously specifying `--without-gnutls` would unexpectedly attempt to
+  compile with GnuTLS, effectively interpreting this as
+  `--with-gnutls`. This caused a significant amount of confusion when
+  `libcurl` was built with SSL disabled since GnuTLS wasn't present.
+  
+  68d89f24 dropped the `--without-*` options from the configure help, but
+  `AC_ARG_WITH` still defines these flags automatically. As
+  https://www.gnu.org/software/autoconf/manual/autoconf-2.60/html_node/External-Software.html
+  describes, the `action-if-given` is called when the user specifies
+  `--with-*` or `--without-*` options.
+  
+  To prevent this confusion, we make the `--without` flag do the right
+  thing by ignoring the value if it set to "no".
+  
+  Closes #7994
+
+- [Rikard Falkeborn brought this change]
+
+  docs/checksrc: Add documentation for STRERROR
+  
+  Closes #7991
+
+- vtls/rustls: adapt to the updated rustls_version proto
+  
+  Closes #7956
+
+- [Kevin Burke brought this change]
+
+  vtls/rustls: handle RUSTLS_RESULT_PLAINTEXT_EMPTY
+  
+  Previously we'd return CURLE_READ_ERROR if we received this, instead
+  of triggering the error handling logic that's present in the next if
+  block down.
+  
+  After this change, curl requests to https://go.googlesource.com using
+  HTTP/2 complete successfully.
+  
+  Fixes #7949
+  Closes #7948
+
+- [Kevin Burke brought this change]
+
+  zuul: update build environment for rustls-ffi 0.8.0
+
+- [Kevin Burke brought this change]
+
+  vtls/rustls: update to compile with rustls-ffi v0.8.0
+  
+  Some method names, as well as the generated library name, were changed
+  in a recent refactoring.
+  
+  Further, change the default configuration instructions to check for
+  Hyper in either "target/debug" or "target/release" - the latter
+  contains an optimized build configuration.
+  
+  Fixes #7947
+  Closes #7948
+
+- RELEASE-NOTES: synced
+  
+  and bump the version to 7.80.1
+
+- multi: shut down CONNECT in Curl_detach_connnection
+  
+  ... to prevent a lingering pointer that would lead to a double-free.
+  
+  Added test 1939 to verify.
+  
+  Reported-by: Stephen M. Coakley
+  Fixes #7982
+  Closes #7986
+
+- curl_easy_cleanup.3: remove from multi handle first
+  
+  Easy handles that are used by the multi interface should be removed from
+  the multi handle before they are cleaned up.
+  
+  Reported-by: Stephen M. Coakley
+  Ref: #7982
+  Closes #7983
+
+- url.c: fix the SIGPIPE comment for Curl_close
+  
+  Closes #7984
+
+Version 7.80.0 (10 Nov 2021)
+
+Daniel Stenberg (10 Nov 2021)
+- RELEASE-NOTES: synced
+  
+  for curl 7.80.0
+
+- THANKS: add contributors from the 7.80.0 cycle
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: advertise h3 as well as h3-29
+  
+  Advertise h3 as well as h3-29 since some servers out there require h3
+  for QUIC v1.
+  
+  Closes #7979
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: use QUIC v1 consistently
+  
+  Since we switched to v1 quic_transport_parameters codepoint in #7960
+  with quictls, lets use QUIC v1 consistently.
+  
+  Closes #7979
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: compile with the latest nghttp3
+  
+  Closes #7978
+
+Marc Hoersken (9 Nov 2021)
+- tests: add Schannel-specific tests and disable unsupported ones
+  
+  Adds Schannel variants of SSLpinning tests that include the option
+  --ssl-revoke-best-effort to ignore certificate revocation check
+  failures which is required due to our custom test CA certificate.
+  
+  Disable the original variants if the Schannel backend is enabled.
+  
+  Also skip all IDN tests which are broken while using an msys shell.
+  
+  This is a step to simplify test exclusions for Windows and MinGW.
+  
+  Reviewed-by: Jay Satiro
+  Reviewed-by: Marcel Raad
+  Reviewed-by: Daniel Stenberg
+  Closes #7968
+
+Daniel Stenberg (8 Nov 2021)
+- docs: NAME fixes in easy option man pages
+  
+  Closes #7975
+
+- [Roger Young brought this change]
+
+  ftp: make the MKD retry to retry once per directory
+  
+  Reported-by: Roger Young
+  Fixes #7967
+  Closes #7976
+
+- tool_operate: reorder code to avoid compiler warning
+  
+  tool_operate.c(889) : warning C4701: potentially uninitialized local
+  variable 'per' use
+  
+  Follow-up to cc71d352651a0d95
+  Reported-by: Marc Hörsken
+  Bug: https://github.com/curl/curl/pull/7922#issuecomment-963042676
+  Closes #7971
+
+- curl_easy_perform.3: add a para about recv and send data
+  
+  Reported-by: Godwin Stewart
+  Fixes #7973
+  Closes #7974
+
+- tool_operate: fclose stream only if fopened
+  
+  Fixes torture test failures
+  Follow-up to cc71d352651
+  
+  Closes #7972
+
+- libcurl-easy.3: language polish
+
+- limit-rate.d: this is average over several seconds
+  
+  Closes #7970
+
+- docs: reduce/avoid English contractions
+  
+  You're => You are
+  Hasn't => Has not
+  Doesn't => Does not
+  Don't => Do not
+  You'll => You will
+  etc
+  
+  Closes #7930
+
+- tool_operate: fix torture leaks with etags
+  
+  Spotted by torture testing 343 344 345 347.
+  
+  Follow-up from cc71d352651a0
+  Pointed-out-by: Dan Fandrich
+  
+  Closes #7969
+
+- [Amaury Denoyelle brought this change]
+
+  ngtcp2: support latest QUIC TLS RFC9001
+  
+  QUIC Transport Parameters Extension has been changed between draft-29
+  and latest RFC9001. Most notably, its identifier has been updated from
+  0xffa5 to 0x0039. The version is selected through the QUIC TLS library
+  via the legacy codepoint.
+  
+  Disable the usage of legacy codepoint in curl to switch to latest
+  RFC9001. This is required to be able to keep up with latest QUIC
+  implementations.
+  
+  Acked-by: Tatsuhiro Tsujikawa
+  Closes #7960
+
+- test1173: make manpage-syntax.pl spot \n errors in examples
+
+- man pages: fix backslash-n in examples
+  
+  ... to be proper backslash-backslash-n sequences to render nicely in man
+  and on website.
+  
+  Follow-up to 24155569d8a
+  Reported-by: Sergey Markelov
+  
+  Fixes https://github.com/curl/curl-www/issues/163
+  Closes #7962
+
+- scripts/release-notes.pl: use out of repo links verbatim in refs
+
+- tool_operate: a failed etag save now only fails that transfer
+  
+  When failing to create the output file for saving an etag, only fail
+  that particular single transfer and allow others to follow.
+  
+  In a serial transfer setup, if no transfer at all is done due to them
+  all being skipped because of this error, curl will output an error
+  message and return exit code 26.
+  
+  Added test 369 and 370 to verify.
+  
+  Reported-by: Earnestly on github
+  Ref: #7942
+  Closes #7945
+
+- [Kevin Burke brought this change]
+
+  .github: retry macos "brew install" command on failure
+  
+  Previously we saw errors attempting to run "brew install", see
+  https://github.com/curl/curl/runs/4095721123?check_suite_focus=true for
+  an example, since this command is idempotent, it is safe to run again.
+  
+  Closes #7955
+
+- CURLOPT_ALTSVC_CTRL.3: mention conn reuse is preferred
+  
+  Ref: https://github.com/curl/curl/discussions/7954
+  
+  Closes #7957
+
+- RELEASE-NOTES: synced
+
+- zuul: pin the quiche build to use an older cmake-rs
+  
+  The latest cmake-rs assumes cmake's --parallel works. That was added in
+  cmake 3.12, but a lot of our CI builds run on Ubuntu Bionic which only
+  has cmake 3.10.
+  
+  Fixes #7927
+  Closes #7952
+
+- [Marc Hoersken brought this change]
+
+  Revert "src/tool_filetime: disable -Wformat on mingw for this file"
+  
+  This reverts commit 7c88fe375b15c44d77bccc9ab733b8069d228e6f.
+  
+  Follow up to #6535 as the pragma is obsolete with warnf
+  
+  Closes #7941
+
+Jay Satiro (2 Nov 2021)
+- schannel: fix memory leak due to failed SSL connection
+  
+  - Call schannel_shutdown if the SSL connection fails.
+  
+  Prior to this change schannel_shutdown (which shuts down the SSL
+  connection as well as memory cleanup) was not called when the SSL
+  connection failed (eg due to failed handshake).
+  
+  Co-authored-by: Gisle Vanem
+  
+  Fixes https://github.com/curl/curl/issues/7877
+  Closes https://github.com/curl/curl/pull/7878
+
+Daniel Stenberg (2 Nov 2021)
+- Curl_updateconninfo: store addresses for QUIC connections too
+  
+  So that CURLINFO_PRIMARY_IP etc work for HTTP/3 like for other HTTP
+  versions.
+  
+  Reported-by: Jerome Mao
+  Fixes #7939
+  Closes #7944
+
+- [Sergio Durigan Junior brought this change]
+
+  curl.1: fix typos in the manpage
+  
+  s/transfering/transferring/
+  s/transfered/transferred/
+  
+  Signed-off-by: Sergio Durigan Junior 
+  Closes #7937
+
+Marc Hoersken (1 Nov 2021)
+- tests/smbserver.py: fix compatibility with impacket 0.9.23+
+  
+  impacket now performs sanity checks if the requested and to
+  be served file path actually is inside the real share path.
+  
+  Ref: https://github.com/SecureAuthCorp/impacket/pull/1066
+  
+  Fixes #7924
+  Closes #7935
+
+Daniel Stenberg (1 Nov 2021)
+- docs: reduce use of "very"
+  
+  "Very" should be avoided in most texts. If intensifiers are needed, try
+  find better words instead.
+  
+  Closes #7936
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: specify the missing required callback functions
+  
+  Closes #7929
+
+- CURLOPT_[PROXY]_SSL_CIPHER_LIST.3: bold instead of quote
+  
+  Bold the example ciphers instead of using single quotes, which then also
+  avoids the problem of how to use single quotes when first in a line.
+  
+  Also rephrased the pages a little.
+  
+  Reported-by: Sergio Durigan Junior
+  Ref: #7928
+  Closes #7934
+
+- gen.pl: replace leading single quotes with \(aq
+  
+  ... and allow single quotes to be used "normally" in the .d files.
+  
+  Makes the output curl.1 use better nroff.
+  
+  Reported-by: Sergio Durigan Junior
+  Ref: #7928
+  Closes #7933
+
+Marc Hoersken (1 Nov 2021)
+- tests: kill some test servers afterwards to avoid locked logfiles
+  
+  Reviewed-by: Daniel Stenberg
+  Closes #7925
+
+Daniel Stenberg (1 Nov 2021)
+- smooth-gtk-thread.c: enhance the mutex lock use
+  
+  Reported-by: ryancaicse on github
+  Fixes #7926
+  Closes #7931
+
+Marc Hoersken (31 Oct 2021)
+- CI/runtests.pl: restore -u flag, but remove it from CI runs
+  
+  This makes it possible to use -u again for local testing,
+  but removes the flag from CI config files and make targets.
+  
+  Reviewed-by: Daniel Stenberg
+  
+  Partially reverts #7841
+  Closes #7921
+
+Daniel Stenberg (29 Oct 2021)
+- [Jonathan Cardoso Machado brought this change]
+
+  CURLOPT_HSTSWRITEFUNCTION.3: using CURLOPT_HSTS_CTRL is required
+  
+  Closes #7923
+
+- [Axel Morawietz brought this change]
+
+  imap: display quota information
+  
+  Show response to "GETQUOTAROOT INBOX" command.
+  
+  Closes #6973
+
+- RELEASE-NOTES: synced
+
+- [Boris Rasin brought this change]
+
+  cmake: fix error getting LOCATION property on non-imported target
+  
+  Closes #7885
+
+- [Xiaoke Wang brought this change]
+
+  url: check the return value of curl_url()
+  
+  Closes #7917
+
+- [Roy Li brought this change]
+
+  configure.ac: replace krb5-config with pkg-config
+  
+  The rationale is that custom *-config tools don't work well when
+  cross-compiling or using sysroots (such as when using Yocto project) and
+  require custom fixing for each of them; pkg-config on the other hand
+  works similarly everywhere.
+  
+  Signed-off-by: Roy Li 
+  Signed-off-by: Alexander Kanavin 
+  
+  Closes #7916
+
+- test1160: edited to work with hyper
+  
+  Closes #7912
+
+- data/DISABLED: enable tests that now work with hyper
+  
+  Closes #7911
+
+- test559: add 'HTTP' in keywords
+  
+  Makes it run fine with hyper
+  
+  Closes #7911
+
+- test552: updated to work with hyper
+  
+  Closes #7911
+
+Marc Hoersken (27 Oct 2021)
+- github: fix incomplete permission to label PRs for Hacktoberfest
+  
+  Unfortunately the GitHub API requires a token with write permission
+  for both issues and pull-requests to edit labels on even just PRs.
+  
+  Follow up to #7897
+
+Daniel Stenberg (27 Oct 2021)
+- opt-manpages: use 'Added in' instead of 'Since'
+  
+  Closes #7913
+
+Marc Hoersken (27 Oct 2021)
+- github: fix missing permission to label PRs for Hacktoberfest
+  
+  Follow up to #7897
+  
+  Test references to see if permissions are now sufficient:
+  
+  Closes #7832
+  Closes #7897
+
+- CI: more use of test-ci make target and verbose output
+  
+  Replace test-nonflaky with test-ci and enable verbose output
+  in all remaining CIs except Zuul which is customized a lot.
+  
+  Reviewed-by: Daniel Stenberg
+  Reviewed-by: Jay Satiro
+  
+  Follow up to #7785
+  Closes #7832
+
+- github: add support for Hacktoberfest using labels
+  
+  Automatically add hacktoberfest-accepted label to PRs opened between
+  September 30th and November 1st once a commit with a close reference
+  to it is pushed onto the master branch.
+  
+  With this workflow we can participate in Hacktoberfest while not
+  relying on GitHub to identify PRs as merged due to our rebasing.
+  
+  Requires hacktoberfest-accepted labels to exist for PRs on the
+  participating repository. Also requires hacktoberfest topic on
+  the participating repository to avoid applying to forked repos.
+  
+  Reviewed-by: Daniel Stenberg
+  
+  Fixes #7865
+  Closes #7897
+
+Daniel Stenberg (27 Oct 2021)
+- http: reject HTTP response codes < 100
+  
+  ... which then also includes negative ones as test 1430 uses.
+  
+  This makes native + hyper backend act identically on this and therefore
+  test 1430 can now be enabled when building with hyper. Adjust test 1431
+  as well.
+  
+  Closes #7909
+
+- [Kerem Kat brought this change]
+
+  docs: fix typo in CURLOPT_TRAILERFUNCTION example
+  
+  Closes #7910
+
+- docs/HYPER: remove some remaining issues, add HTTP/0.9 limitation
+
+- configure: when hyper is selected, deselect nghttp2
+  
+  Closes #7908
+
+- [Patrick Monnerat brought this change]
+
+  sendf: accept zero-length data in Curl_client_write()
+  
+  Historically, Curl_client_write() used a length value of 0 as a marker
+  for a null-terminated data string. This feature has been removed in
+  commit f4b85d2. To detect leftover uses of the feature, a DEBUGASSERT
+  statement rejecting a length with value 0 was introduced, effectively
+  precluding use of this function with zero-length data.
+  
+  The current commit removes the DEBUGASSERT and makes the function to
+  return immediately if length is 0.
+  
+  A direct effect is to fix trying to output a zero-length distinguished
+  name in openldap.
+  
+  Another DEBUGASSERT statement is also rephrased for better readability.
+  
+  Closes #7898
+
+- hyper: disable test 1294 since hyper doesn't allow such crazy headers
+  
+  Closes #7905
+
+- c-hyper: make CURLOPT_SUPPRESS_CONNECT_HEADERS work
+  
+  Verified by the enabled test 1288
+  
+  Closes #7905
+
+- test1287: make work on hyper
+  
+  Closes #7905
+
+- test1266/1267: disabled on hyper: no HTTP/0.9 support
+  
+  Closes #7905
+
+Viktor Szakats (25 Oct 2021)
+- Makefile.m32: fix to not require OpenSSL with -libssh2 or -rtmp options
+  
+  Previously, -libssh2/-rtmp options assumed that OpenSSL is also enabled
+  (and then failed with an error when not finding expected OpenSSL headers),
+  but this isn't necessarly true, e.g. when building both libssh2 and curl
+  against Schannel. This patch makes sure to only enable the OpenSSL backend
+  with -libssh2/-rtmp, when there was no SSL option explicitly selected.
+  
+  - Re-implement the logic as a single block of script.
+  - Also fix an indentation while there.
+  
+  Assisted-by: Jay Satiro
+  
+  Closes #7895
+
+Daniel Stenberg (25 Oct 2021)
+- docs: consistent use of "Added in"
+  
+  Make them all say "Added in [version]" without using 'curl' or 'libcurl'
+  in that phrase.
+
+- man pages: require all to use the same section header order
+  
+  This is the same order we already enforce among the options' man pages:
+  consistency is good. Add lots of previously missing examples.
+  
+  Adjust the manpage-syntax script for this purpose, used in test 1173.
+  
+  Closes #7904
+
+- [David Hu brought this change]
+
+  docs/HTTP3: improve build instructions
+  
+  1. If writing to a system path if the command is not prefixed with
+  `sudo` it will cause a permission denied error
+  
+  2. The patched OpenSSL branch has been updated to `openssl-3.0.0+quic`
+  to match upstream OpenSSL version.
+  
+  3. We should not disable GnuTLS docs.
+  
+  Updated some commands about `make install`
+  
+  Closes #7842
+
+- [Ricardo Martins brought this change]
+
+  CMake: restore support for SecureTransport on iOS
+  
+  Restore support for building curl for iOS with SecureTransport enabled.
+  
+  Closes #7501
+
+- tests: enable more tests with hyper
+  
+  Adjusted 1144, 1164 and 1176.
+  
+  Closes #7900
+
+- docs: provide "RETURN VALUE" section for more func manpages
+  
+  Three were missing, one used a non-standard name for the header.
+  
+  Closes #7902
+
+Jay Satiro (25 Oct 2021)
+- curl_multi_socket_action.3: add a "RETURN VALUE" section
+  
+  .. because it may not be immediately clear to the user what
+  curl_multi_socket_action returns.
+  
+  Ref: https://curl.se/mail/lib-2021-10/0035.html
+  
+  Closes https://github.com/curl/curl/pull/7901
+
+Daniel Stenberg (24 Oct 2021)
+- RELEASE-NOTES: synced
+
+- [Samuel Henrique brought this change]
+
+  tests: use python3 in test 1451
+  
+  This is a continuation of commit ec91b5a69000bea0794bbb3 in which
+  changing this test was missed.  There are no other python2 leftovers
+  now.
+  
+  Based on a Debian patch originally written by Alessandro Ghedini
+  
+  
+  Closes #7899
+
+- [Eddie Lumpkin brought this change]
+
+  lib: fixing comment spelling typos in lib files
+  
+  Closes #7894
+  Signed-off-by: ewlumpkin 
+
+- openssl: if verifypeer is not requested, skip the CA loading
+  
+  It was previously done mostly to show a match/non-match in the verbose
+  output even when verification was not asked for. This change skips the
+  loading of the CA certs unless verifypeer is set to save memory and CPU.
+  
+  Closes #7892
+
+- curl-confopts.m4:  remove --enable/disable-hidden-symbols
+  
+  These configure options have been saying "deprecated" since 9e24b9c7af
+  (April 2012). It was about time we remove them.
+  
+  Closes #7891
+
+- c-hyper: don't abort CONNECT responses early when auth-in-progress
+  
+  ... and make sure to stop ignoring the body once the CONNECT is done.
+  
+  This should make test 206 work proper again and not be flaky.
+  
+  Closes #7889
+
+- hyper: does not support disabling CURLOPT_HTTP_TRANSFER_DECODING
+  
+  Simply because hyper doesn't have this ability. Mentioned in docs now.
+  
+  Skip test 326 then
+  
+  Closes #7889
+
+- test262: don't attempt with hyper
+  
+  This test verifies that curl works with binary zeroes in HTTP response
+  headers and hyper refuses such. They're not kosher http.
+  
+  Closes #7889
+
+- c-hyper: make test 217 run
+  
+  Closes #7889
+
+- DISABLED: enable test 209+213 for hyper
+  
+  Follow-up to 823d3ab855c
+  
+  Closes #7889
+
+- test207: accept a different error code for hyper
+  
+  It returns HYPERE_UNEXPECTED_EOF for this case which we convert to the
+  somewhat generic CURLE_RECV_ERROR.
+  
+  Closes #7889
+
+- [Érico Nogueira brought this change]
+
+  INSTALL: update symbol hiding option
+  
+  --enable-hidden-symbols was deprecated in
+  9e24b9c7afbcb81120af4cf3f6cdee49a06d8224.
+  
+  Closes #7890
+
+- http_proxy: multiple CONNECT with hyper done better
+  
+  Enabled test 206
+  
+  Closes #7888
+
+- hyper: pass the CONNECT line to the debug callback
+  
+  Closes #7887
+
+- mailmap: Malik Idrees Hasan Khan
+
+Jay Satiro (21 Oct 2021)
+- [Malik Idrees Hasan Khan brought this change]
+
+  build: fix typos
+  
+  Closes https://github.com/curl/curl/pull/7886
+
+- URL-SYNTAX: add IMAP UID SEARCH example
+  
+  - Explain the difference between IMAP search via URL (which returns
+    message sequence numbers) and IMAP search via custom request (which
+    can return UID numbers if prefixed with UID, eg "UID SEARCH ...").
+  
+  Bug: https://github.com/curl/curl/issues/7626
+  Reported-by: orycho@users.noreply.github.com
+  
+  Ref: https://github.com/curl/curl/issues/2789
+  
+  Closes https://github.com/curl/curl/pull/7881
+
+Daniel Stenberg (20 Oct 2021)
+- manpage: adjust the asterisk in some SYNOPSIS sections
+  
+  Closes #7884
+
+- curl_multi_perform.3: polish wording
+  
+   - simplify the example by using curl_multi_poll
+  
+   - mention curl_multi_add_handle in the text
+  
+   - cut out the description of pre-7.20.0 return code behavior - that version
+     is now more than eleven years old and is basically no longer out there
+  
+   - adjust the "typical usage" to mention curl_multi_poll
+  
+  Closes #7883
+
+- docs/THANKS: removed on request
+
+- FAQ: polish the explanation of libcurl
+
+- curl_easy_perform.3: minor wording tweak
+
+- [Erik Stenlund brought this change]
+
+  mime: mention CURL_DISABLE_MIME in comment
+  
+  CURL_DISABLE_MIME is not mentioned in the comment describing the if else
+  preprocessor directive.
+  
+  Closes #7882
+
+- tls: remove newline from three infof() calls
+  
+  Follow-up to e7416cf
+  
+  Reported-by: billionai on github
+  Fixes #7879
+  Closes #7880
+
+- RELEASE-NOTES: synced
+
+- curl_gssapi: fix build warnings by removing const
+  
+  Follow-up to 20e980f85b0ea6
+  
+  In #7875 these inits were modified but I get two warnings that these new
+  typecasts are necessary for.
+  
+  Closes #7876
+
+- [Bo Anderson brought this change]
+
+  curl_gssapi: fix link error on macOS Monterey
+  
+  Fixes #7657
+  Closes #7875
+
+- test1185: verify checksrc
+  
+  Closes #7866
+
+- checksrc: improve the SPACESEMICOLON error message
+  
+  and adjust the MULTISPACE one to use plural
+  
+  Closes #7866
+
+- url: set "k->size" -1 at start of request
+  
+  The size of the transfer is unknown at that point.
+  
+  Fixes #7871
+  Closes #7872
+
+Daniel Gustafsson (18 Oct 2021)
+- doh: remove experimental code for DoH with GET
+  
+  The code for sending DoH requests with GET was never enabled in a way
+  such that it could be used or tested. As there haven't been requests
+  for this feature, and since it at this is effectively dead, remove it
+  and favor reimplementing the feature in case anyone is interested.
+  
+  Closes #7870
+  Reviewed-by: Daniel Stenberg 
+
+Daniel Stenberg (18 Oct 2021)
+- cirrus: remove FreeBSD 11.4 from the matrix
+  
+  It has reached End-Of-Life and causes some LDAP CI issues.
+  
+  Closes #7869
+
+- cirrus: switch to openldap24-client
+  
+  ... as it seems openldap-client doesn't exist anymore.
+  
+  Reported-by: Jay Satiro
+  Fixes #7868
+  Closes #7869
+
+- checksrc: ignore preprocessor lines
+  
+  In order to check the actual code better, checksrc now ignores
+  everything that look like preprocessor instructions. It also means
+  that code in macros are now longer checked.
+  
+  Note that some rules then still don't need to be followed when code is
+  exactly below a cpp instruction.
+  
+  Removes two checksrc exceptions we needed previously because of
+  preprocessor lines being checked.
+  
+  Reported-by: Marcel Raad
+  Fixes #7863
+  Closes #7864
+
+- urlapi: skip a strlen(), pass in zero
+  
+  ... to let curl_easy_escape() itself do the strlen. This avoids a (false
+  positive) Coverity warning and it avoids us having to store the strlen()
+  return value in an int variable.
+  
+  Reviewed-by: Daniel Gustafsson
+  Closes #7862
+
+- misc: update copyright years
+
+- examples/htmltidy: correct wrong printf() use
+  
+  ... and update the includes to match how current htmltidy wants them
+  used.
+  
+  Reported-by: Stathis Kapnidis
+  Fixes #7860
+  Closes #7861
+
+Jay Satiro (15 Oct 2021)
+- http: set content length earlier
+  
+  - Make content length (ie download size) accessible to the user in the
+    header callback, but only after all headers have been processed (ie
+    only in the final call to the header callback).
+  
+  Background:
+  
+  For a long time the content length could be retrieved in the header
+  callback via CURLINFO_CONTENT_LENGTH_DOWNLOAD_T as soon as it was parsed
+  by curl.
+  
+  Changes were made in 8a16e54 (precedes 7.79.0) to ignore content length
+  if any transfer encoding is used. A side effect of that was that
+  content length was not set by libcurl until after the header callback
+  was called the final time, because until all headers are processed it
+  cannot be determined if content length is valid.
+  
+  This change keeps the same intention --all headers must be processed--
+  but now the content length is available before the final call to the
+  header function that indicates all headers have been processed (ie
+  a blank header).
+  
+  Bug: https://github.com/curl/curl/commit/8a16e54#r57374914
+  Reported-by: sergio-nsk@users.noreply.github.com
+  
+  Co-authored-by: Daniel Stenberg
+  
+  Fixes https://github.com/curl/curl/issues/7804
+  Closes https://github.com/curl/curl/pull/7803
+
+Daniel Stenberg (15 Oct 2021)
+- [Abhinav Singh brought this change]
+
+  aws-sigv4: make signature work when post data is binary
+  
+  User sets the post fields size for binary data.  Hence, we should not be
+  using strlen on it.
+  
+  Added test 1937 and 1938 to verify.
+  
+  Closes #7844
+
+- [a1346054 brought this change]
+
+  MacOSX-Framework: remove redundant ';'
+  
+  Closes #7859
+
+- RELEASE-NOTES: synced
+
+- openssl: with OpenSSL 1.1.0+ a failed RAND_status means goaway
+  
+  One reason we know it can fail is if a provider is used that doesn't do
+  a proper job or is wrongly configured.
+  
+  Reported-by: Michael Baentsch
+  Fixes #7840
+  Closes #7856
+
+Marcel Raad (14 Oct 2021)
+- [Ryan Mast brought this change]
+
+  cmake: add CURL_ENABLE_SSL option and make CMAKE_USE_* SSL backend options depend on it
+  
+  Closes https://github.com/curl/curl/pull/7822
+
+Daniel Stenberg (14 Oct 2021)
+- http: remove assert that breaks hyper
+  
+  Reported-by: Jay Satiro
+  Fixes #7852
+  Closes #7855
+
+- http_proxy: fix one more result assign for hyper
+  
+  and remove the bad assert again, since it was run even with no error!
+  
+  Closes #7854
+
+Jay Satiro (14 Oct 2021)
+- sws: fix memory leak on exit
+  
+  - Free the allocated http request struct on cleanup.
+  
+  Prior to this change if sws was built with leak sanitizer it would
+  report a memory leak error during testing.
+  
+  Closes https://github.com/curl/curl/pull/7849
+
+Daniel Stenberg (14 Oct 2021)
+- c-hyper: make Curl_http propagate errors better
+  
+  Pass on better return codes when errors occur within Curl_http instead
+  of insisting that CURLE_OUT_OF_MEMORY is the only possible one.
+  
+  Pointed-out-by: Jay Satiro
+  Closes #7851
+
+- http_proxy: make hyper CONNECT() return the correct error code
+  
+  For every 'goto error', make sure the result variable holds the error
+  code for what went wrong.
+  
+  Reported-by: Rafał Mikrut
+  Fixes #7825
+  Closes #7846
+
+- docs/Makefile.am: repair 'make html'
+  
+  by removing index.html which isn't around anymore
+  
+  Closes #7853
+
+- [Борис Верховский brought this change]
+
+  curl: correct grammar in generated libcurl code
+  
+  Closes #7802
+
+- tests: disable test 2043
+  
+  It uses revoked.badssl.com which now is expired and therefor this now
+  permafails. We should not use external sites for tests, this test should
+  be converted to use our own infra.
+  
+  Closes #7845
+
+- runtests: split out ignored tests
+  
+  Report ignore tests separately from the actual fails.
+  
+  Don't exit non-zero if test servers couldn't get killed.
+  
+  Assisted-by: Jay Satiro
+  
+  Fixes #7818
+  Closes #7841
+
+- http2: make getsock not wait for write if there's no remote window
+  
+  While uploading, check for remote window availability in the getsock
+  function so that we don't wait for a writable socket if no data can be
+  sent.
+  
+  Reported-by: Steini2000 on github
+  Fixes #7821
+  Closes #7839
+
+- test368: verify dash is appended for "-r [num]"
+  
+  Follow-up to 8758a26f8878
+
+- [Борис Верховский brought this change]
+
+  curl: actually append "-" to --range without number only
+  
+  Closes #7837
+
+- RELEASE-NOTES: synced
+
+- urlapi: URL decode percent-encoded host names
+  
+  The host name is stored decoded and can be encoded when used to extract
+  the full URL. By default when extracting the URL, the host name will not
+  be URL encoded to work as similar as possible as before. When not URL
+  encoding the host name, the '%' character will however still be encoded.
+  
+  Getting the URL with the CURLU_URLENCODE flag set will percent encode
+  the host name part.
+  
+  As a bonus, setting the host name part with curl_url_set() no longer
+  accepts a name that contains space, CR or LF.
+  
+  Test 1560 has been extended to verify percent encodings.
+  
+  Reported-by: Noam Moshe
+  Reported-by: Sharon Brizinov
+  Reported-by: Raul Onitza-Klugman
+  Reported-by: Kirill Efimov
+  Fixes #7830
+  Closes #7834
+
+Marc Hoersken (8 Oct 2021)
+- CI/makefiles: introduce dedicated test target
+  
+  Make it easy to use the same set of test flags
+  throughout all current and future CI builds.
+  
+  Reviewed-by: Jay Satiro
+  
+  Follow up to #7690
+  Closes #7785
+
+Daniel Stenberg (8 Oct 2021)
+- maketgz: redirect updatemanpages.pl output to /dev/null
+
+- CURLOPT_HTTPHEADER.3: add descripion for specific headers
+  
+  Settting Host: or Transfer-Encoding: chunked actually have special
+  meanings to libcurl. This change tries to document them
+  
+  Closes #7829
+
+- c-hyper: use hyper_request_set_uri_parts to make h2 better
+  
+  and make sure to not send Host: over h2.
+  
+  Fixes #7679
+  Reported-by: David Cook
+  Closes #7827
+
+- [Michael Afanasiev brought this change]
+
+  curl-openssl.m4: modify library order for openssl linking
+  
+  lcrypto may depend on lz, and configure corrently fails with when
+  statically linking as the order is "-lz -lcrypto". This commit switches
+  the order to "-lcrypto -lz".
+  
+  Closes #7826
+
+Marcel Raad (7 Oct 2021)
+- sha256: use high-level EVP interface for OpenSSL
+  
+  Available since OpenSSL 0.9.7. The low-level SHA256 interface is
+  deprecated in OpenSSL v3, and its usage was discouraged even before.
+  
+  Closes https://github.com/curl/curl/pull/7808
+
+- curl_ntlm_core: use OpenSSL only if DES is available
+  
+  This selects another SSL backend then if available, or otherwise at
+  least gives a meaningful error message.
+  
+  Closes https://github.com/curl/curl/pull/7808
+
+- md5: fix compilation with OpenSSL 3.0 API
+  
+  Only use OpenSSL's MD5 code if it's available.
+  
+  Also fix wolfSSL build with `NO_MD5`, in which case neither the
+  wolfSSL/OpenSSL implementation nor the fallback implementation was
+  used.
+  
+  Closes https://github.com/curl/curl/pull/7808
+
+Daniel Stenberg (7 Oct 2021)
+- print_category: printf %*s needs an int argument
+  
+  ... not a size_t!
+  
+  Detected by Coverity: CID 1492331.
+  Closes #7823
+
+Jay Satiro (7 Oct 2021)
+- version_win32: use actual version instead of manifested version
+  
+  - Use RtlVerifyVersionInfo instead of VerifyVersionInfo, when possible.
+  
+  Later versions of Windows have normal version functions that compare and
+  return versions based on the way the application is manifested, instead
+  of the actual version of Windows the application is running on. We
+  prefer the actual version of Windows so we'll now call the Rtl variant
+  of version functions (RtlVerifyVersionInfo) which does a proper
+  comparison of the actual version.
+  
+  Reported-by: Wyatt O'Day
+  
+  Ref: https://github.com/curl/curl/pull/7727
+  
+  Fixes https://github.com/curl/curl/issues/7742
+  Closes https://github.com/curl/curl/pull/7810
+
+Daniel Stenberg (6 Oct 2021)
+- RELEASE-NOTES: synced
+
+- http: fix Basic auth with empty name field in URL
+  
+  Add test 367 to verify.
+  
+  Reported-by: Rick Lane
+  Fixes #7819
+  Closes #7820
+
+- [Jeffrey Tolar brought this change]
+
+  CURLOPT_MAXLIFETIME_CONN: maximum allowed lifetime for conn reuse
+  
+  ... and close connections that are too old instead of reusing them.
+  
+  By default, this behavior is disabled.
+  
+  Bug: https://curl.se/mail/lib-2021-09/0058.html
+  Closes #7751
+
+Daniel Gustafsson (6 Oct 2021)
+- docs/examples: add missing binaries to gitignore
+  
+  Commit f65d7889b added getreferrer, and commit ae8e11ed5 multi-legacy,
+  both of which missed adding .gitignore clauses for the built binaries.
+  
+  Closes #7817
+  Reviewed-by: Daniel Stenberg 
+
+Daniel Stenberg (5 Oct 2021)
+- [Josip Medved brought this change]
+
+  HTTP3: fix the HTTP/3 Explained book link
+  
+  Closes #7813
+
+- [Lucas Holt brought this change]
+
+  misc: fix a few issues on MidnightBSD
+  
+  Closes #7812
+
+Daniel Gustafsson (4 Oct 2021)
+- [8U61ife brought this change]
+
+  tool_main: fix typo in comment
+  
+  Closes: #7811
+  Reviewed-by: Daniel Gustafsson 
+
+Daniel Stenberg (4 Oct 2021)
+- [Ryan Mast brought this change]
+
+  BINDINGS: URL updates
+  
+  For cpr, BBHTTP, Eiffel, Harbour, Haskell, Mono, and Rust
+  
+  Closes #7809
+
+- scripts/delta: hide a git error message we don't care about
+  
+  fatal: path 'src/tool_listhelp.c' exists on disk, but not in [tag]
+
+- [Patrick Monnerat brought this change]
+
+  sasl: binary messages
+  
+  Capabilities of sasl module are extended to exchange messages in binary
+  as an alternative to base64.
+  
+  If http authentication flags have been set, those are used as sasl
+  default preferred mechanisms.
+  
+  Closes #6930
+
+- [Hayden Roche brought this change]
+
+  wolfssl: use for SHA256, MD4, MD5, and setting DES odd parity
+  
+  Prior to this commit, OpenSSL could be used for all these functions, but
+  not wolfSSL. This commit makes it so wolfSSL will be used if USE_WOLFSSL
+  is defined.
+  
+  Closes #7806
+
+- scripts/delta: count command line options in the new file
+  
+  ... which makes the shown delta number wrong until next release.
+
+- RELEASE-NOTES: synced
+
+- print_category: print help descriptions aligned
+  
+  Adjust the description position to make an aligned column when doing
+  help listings, which is more pleasing to the eye.
+  
+  Suggested-by: Gisle Vanem
+  Closes #7792
+
+- lib/mk-ca-bundle.pl: skip certs passed Not Valid After date
+  
+  With this change applied, the now expired 'DST Root CA X3' cert will no
+  longer be included in the output.
+  
+  Details: https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
+  
+  Closes #7801
+
+- tool_listhelp: easier to generate with gen.pl
+  
+  tool_listhelp.c is now a separate file with only the command line --help
+  output, exactly as generated by gen.pl. This makes it easier to generate
+  updates according to what's in the docs/cmdline-opts docs.
+  
+    cd $srcroot/docs/cmdline-opts
+    ./gen.pl listhelp *.d > $srcroot/src/tool_listhelp.c
+  
+  With a configure build, this also works:
+  
+    make -C src listhelp
+  
+  Closes #7787
+
+- [Anthony Hu brought this change]
+
+  wolfssl: allow setting of groups/curves
+  
+  In particular, the quantum safe KEM and hybrid curves if wolfSSL is
+  built to support them.
+  
+  Closes #7728
+
+- [Jan Mazur brought this change]
+
+  connnect: use sysaddr_un fron sys/un.h or custom-defined for windows
+  
+  Closes #7737
+
+Jay Satiro (30 Sep 2021)
+- [Rikard Falkeborn brought this change]
+
+  hostip: Move allocation to clarify there is no memleak
+  
+  By just glancing at the code, it looks like there is a memleak if the
+  call to Curl_inet_pton() fails. Looking closer, it is clear that the
+  call to Curl_inet_pton() can not fail, so the code will never leak
+  memory. However, we can make this obvious by moving the allocation
+  after the if-statement.
+  
+  Closes https://github.com/curl/curl/pull/7796
+
+Daniel Stenberg (30 Sep 2021)
+- gen.pl: make the output date format work better
+  
+  Follow-up to 15910dfd143dd
+  
+  The previous strftime format used didn't work correctly on Windows, so
+  change to %B %d %Y which today looks like "September 29 2021".
+  
+  Reported-by: Gisle Vanem
+  Bug: #7782
+  Closes #7793
+
+- typecheck-gcc.h: add CURLOPT_PREREQDATA awareness
+  
+  Follow-up to a517378de58358a
+  
+  To make test 1912 happy again
+  
+  Closes #7799
+
+Marcel Raad (29 Sep 2021)
+- configure: remove `HAVE_WINSOCK_H` definition
+  
+  It's not used anymore.
+  
+  Closes https://github.com/curl/curl/pull/7795
+
+- CMake: remove `HAVE_WINSOCK_H` definition
+  
+  It's not used anymore.
+  
+  Closes https://github.com/curl/curl/pull/7795
+
+- config: remove `HAVE_WINSOCK_H` definition
+  
+  It's not used anymore.
+  
+  Closes https://github.com/curl/curl/pull/7795
+
+- lib: remove `HAVE_WINSOCK_H` usage
+  
+  WinSock v1 is not supported anymore. Exclusively use `HAVE_WINSOCK2_H`
+  instead.
+  
+  Closes https://github.com/curl/curl/pull/7795
+
+Daniel Stenberg (29 Sep 2021)
+- easyoptions: add the two new PRE* options
+  
+  Follow-up to a517378de58358a
+  
+  Also fix optiontable.pl to do the correct remainder on the entry.
+  
+  Reported-by: Gisle Vanem
+  Bug: https://github.com/curl/curl/commit/a517378de58358a85b7cfe9efecb56051268f629#commitcomment-57224830
+  Closes #7791
+
+- Revert "build: remove checks for WinSock 1"
+  
+  Due to CI issues
+  
+  This reverts commit c2ea04f92b00b6271627cb218647527b5a50f2fc.
+  
+  Closes #7790
+
+Daniel Gustafsson (29 Sep 2021)
+- lib: avoid fallthrough cases in switch statements
+  
+  Commit b5a434f7f0ee4d64857f8592eced5b9007d83620 inhibits the warning
+  on implicit fallthrough cases, since the current coding of indicating
+  fallthrough with comments is falling out of fashion with new compilers.
+  This attempts to make the issue smaller by rewriting fallthroughs to no
+  longer fallthrough, via either breaking the cases or turning switch
+  statements into if statements.
+  
+    lib/content_encoding.c: the fallthrough codepath is simply copied
+      into the case as it's a single line.
+    lib/http_ntlm.c: the fallthrough case skips a state in the state-
+      machine and fast-forwards to NTLMSTATE_LAST. Do this before the
+      switch statement instead to set up the states that we actually
+      want.
+    lib/http_proxy.c: the fallthrough is just falling into exiting the
+      switch statement which can be done easily enough in the case.
+    lib/mime.c: switch statement rewritten as if statement.
+    lib/pop3.c: the fallthrough case skips to the next state in the
+      statemachine, do this explicitly instead.
+    lib/urlapi.c: switch statement rewritten as if statement.
+    lib/vssh/wolfssh.c: the fallthrough cases fast-forwards the state
+      machine, do this by running another iteration of the switch
+      statement instead.
+    lib/vtls/gtls.c: switch statement rewritten as if statement.
+    lib/vtls/nss.c: the fallthrough codepath is simply copied into the
+      case as it's a single line. Also twiddle a comment to not be
+      inside a non-brace if statement.
+  
+  Closes: #7322
+  See-also: #7295
+  Reviewed-by: Daniel Stenberg 
+
+Marcel Raad (28 Sep 2021)
+- config-win32ce: enable WinSock 2
+  
+  WinSock 2.2 is supported by Windows CE .NET 4.1 (from 2002, out of
+  support since 2013).
+  
+  Ref: https://docs.microsoft.com/en-us/previous-versions/windows/embedded/ms899586(v=msdn.10)
+  
+  Closes https://github.com/curl/curl/pull/7778
+
+- externalsocket: use WinSock 2.2
+  
+  That's the only version we support.
+  
+  Closes https://github.com/curl/curl/pull/7778
+
+- build: remove checks for WinSock 1
+  
+  It's not supported anymore.
+  
+  Closes https://github.com/curl/curl/pull/7778
+
+Daniel Stenberg (28 Sep 2021)
+- scripts/copyright: .muse is .lift now
+  
+  And update 5 files with old copyright year range
+
+- cmdline-opts: made the 'Added:' field mandatory
+  
+  Since "too old" versions are no longer included in the generated man
+  page, this field is now mandatory so that it won't be forgotten and then
+  not included in the documentation.
+  
+  Closes #7786
+
+- curl.1: remove mentions of really old version changes
+  
+  To make the man page more readable, this change removes all references
+  to changes in support/versions etc that happened before 7.30.0 from the
+  curl.1 output file. 7.30.0 was released on Apr 12 2013. This particular
+  limit is a bit arbitrary but was fairly easy to grep for.
+  
+  It is handled like this: the 'Added' keyword is only used in output if
+  it refers to 7.30.0 or later. All occurances of "(Added in $VERSION)" in
+  description will be stripped out if the mentioned $VERSION is from
+  before 7.30.0. It is therefore important that the "Added in..."
+  references are always written exactly like that - and on a single line,
+  not split over two.
+  
+  This change removes about 80 version number references from curl.1, down
+  to 138 from 218.
+  
+  Closes #7786
+
+- RELEASE-NOTES: synced
+
+- tool_cb_prg: make resumed upload progress bar show better
+  
+  This is a regression that was *probably* injected in the larger progress
+  bar overhaul in 2018.
+  
+  Reported-by: beslick5 on github
+  Fixes #7760
+  Closes #7777
+
+- gen.pl: insert the current date and version in generated man page
+  
+  Reported-by: Gisle Vanem
+  Ref: #7780
+  Closes #7782
+
+- NTLM: use DES_set_key_unchecked with OpenSSL
+  
+  ... as the previously used function DES_set_key() will in some cases
+  reject using a key that it deems "weak" which will cause curl to
+  continue using the unitialized buffer content as key instead.
+  
+  Assisted-by: Harry Sintonen
+  Fixes #7779
+  Closes #7781
+
+Marc Hoersken (27 Sep 2021)
+- CI: align make and test flags in various config files
+  
+  1. Use Makefile target to run tests in autotools builds on AppVeyor.
+  2. Disable testing of SCP protocol on native Windows environments.
+  3. Remove redundant parameters -a -p from target test-nonflaky.
+  4. Don't use -vc parameter which is reserved for debugging.
+  
+  Replaces #7591
+  Closes #7690
+
+Daniel Stenberg (27 Sep 2021)
+- mailmap: unify Max!
+
+- [Max Dymond brought this change]
+
+  CURLOPT_PREREQFUNCTION: add new callback
+  
+  Triggered before a request is made but after a connection is set up
+  
+  Changes:
+  
+  - callback: Update docs and callback for pre-request callback
+  - Add documentation for CURLOPT_PREREQDATA and CURLOPT_PREREQFUNCTION,
+  - Add redirect test and callback failure test
+  - Note that the function may be called multiple times on a redirection
+  - Disable new 2086 test due to Windows weirdness
+  
+  Closes #7477
+
+- KNOWN_BUGS: HTTP/2 connections through HTTPS proxy frequently stall
+  
+  Closes #6936
+
+- TODO: make configure use --cache-file more and better
+  
+  Closes #7753
+
+- [Sergey Markelov brought this change]
+
+  urlapi: support UNC paths in file: URLs on Windows
+  
+  - file://host.name/path/file.txt is a valid UNC path
+    \\host.name\path\files.txt to a non-local file transformed into URI
+    (RFC 8089 Appendix E.3)
+  
+  - UNC paths on other OSs must be smb: URLs
+  
+  Closes #7366
+
+- [Gleb Ivanovsky brought this change]
+
+  urlapi: add curl_url_strerror()
+  
+  Add curl_url_strerror() to convert CURLUcode into readable string and
+  facilitate easier troubleshooting in programs using URL API.
+  Extend CURLUcode with CURLU_LAST for iteration in unit tests.
+  Update man pages with a mention of new function.
+  Update example code and tests with new functionality where it fits.
+  
+  Closes #7605
+
+- RELEASE-NOTES: synced
+
+- [Mats Lindestam brought this change]
+
+  libssh2: add SHA256 fingerprint support
+  
+  Added support for SHA256 fingerprint in command line curl and in
+  libcurl.
+  
+  Closes #7646
+
+- libcurl.rc: switch out the copyright symbol for plain ASCII
+  
+  Reported-by: Vitaly Varyvdin
+  Assisted-by: Viktor Szakats
+  Fixes #7765
+  Closes #7776
+
+- [Jun-ya Kato brought this change]
+
+  ngtcp2: fix QUIC transport parameter version
+  
+  fix inappropriate version setting for QUIC transport parameters.
+  this patch keeps curl with ngtcp2 uses QUIC draft version (h3-29).
+  
+  Closes #7771
+
+- examples/imap-append: fix end-of-data check
+  
+  Reported-by: Alexander Chuykov
+  Fixes #7774
+  Closes #7775
+
+Michael Kaufmann (24 Sep 2021)
+- vtls: Fix a memory leak if an SSL session cannot be added to the cache
+  
+  On connection shutdown, a new TLS session ticket may arrive after the
+  SSL session cache has already been destructed. In this case, the new
+  SSL session cannot be added to the SSL session cache.
+  
+  The callers of Curl_ssl_addsessionid() need to know whether the SSL
+  session has been added to the cache. If it has not been added, the
+  reference counter of the SSL session must not be incremented, or memory
+  used by the SSL session must be freed. This is now possible with the new
+  output parameter "added" of Curl_ssl_addsessionid().
+  
+  Fixes #7683
+  Closes #7752
+
+Daniel Stenberg (24 Sep 2021)
+- [Momoka Yamamoto brought this change]
+
+  HTTP3.md: use 'autoreconf -fi' instead of buildconf
+  
+  buildconf is not used since #5853
+  
+  Closes #7746
+
+- GIT-INFO: rephrase to adapt to s/buildconf/autoreconf
+
+- [h1zzz brought this change]
+
+  llist: remove redundant code, branch will not be executed
+  
+  Closes #7770
+
+- [tlahn brought this change]
+
+  HTTP-COOKIES.md: remove duplicate 'each'
+  
+  Closes #7772
+
+Jay Satiro (24 Sep 2021)
+- [Joel Depooter brought this change]
+
+  libssh2: Get the version at runtime if possible
+  
+  Previously this code used a compile time constant, meaning that libcurl
+  always reported the libssh2 version that libcurl was built with. This
+  could differ from the libssh2 version actually being used. The new code
+  uses the CURL_LIBSSH2_VERSION macro, which is defined in ssh.h. The
+  macro calls the libssh2_version function if it is available, otherwise
+  it falls back to the compile time version.
+  
+  Closes https://github.com/curl/curl/pull/7768
+
+- [Joel Depooter brought this change]
+
+  schannel: fix typo
+  
+  Closes https://github.com/curl/curl/pull/7769
+
+Daniel Stenberg (23 Sep 2021)
+- cmake: with OpenSSL, define OPENSSL_SUPPRESS_DEPRECATED
+  
+  To avoid the "... is deprecated" warnings brought by OpenSSL v3.
+  (We need to address the underlying code at some point of course.)
+  
+  Assisted-by: Jakub Zakrzewski
+  Closes #7767
+
+- curl-openssl: pass argument to sed single-quoted
+  
+  ... instead of using an escaped double-quote. This is an attempt to make
+  this work better with ksh that otherwise would insist on a double
+  escape!
+  
+  Reported-by: Randall S. Becker
+  Fixes #7758
+  Closes #7764
+
+- RELEASE-NOTES: synced
+  
+  Bumped curlver to 7.80.0-dev
+
+- [a1346054 brought this change]
+
+  misc: fix typos in docs and comments
+  
+  No user facing output from curl/libcurl is changed by this, just
+  comments.
+  
+  Closes #7747
+
+- [Thomas M. DuBuisson brought this change]
+
+  ci: update Lift config to match requirements of curl build
+  
+  Also renamed Muse -> Lift, the new tool name.
+  
+  Closes #7761
+
+- [Rikard Falkeborn brought this change]
+
+  cleanup: constify unmodified static structs
+  
+  Constify a number of static structs that are never modified. Make them
+  const to show this.
+  
+  Closes #7759
+
+Version 7.79.1 (22 Sep 2021)
+
+Daniel Stenberg (22 Sep 2021)
+- RELEASE-NOTES: synced
+  
+  curl 7.79.1 release
+
+- THANKS: added names from the 7.79.1 release
+
+- test897: verify delivery of IMAP post-body header content
+  
+  The "content" is delivered as "body" by curl, but the envelope continues
+  after the body and the rest of it should be delivered as header.
+  
+  The IMAP server can now get 'POSTFETCH' set to include more data to
+  include after the body and test 897 is done to verify that such "extra"
+  header data is in fact delivered by curl as header.
+  
+  Ref: #7284 but fails to reproduce the issue
+  
+  Closes #7748
+
+- KNOWN_BUGS: connection migration doesn't work
+  
+  Closes #7695
+
+- RELEASE-NOTES: synced
+
+- http: fix the broken >3 digit response code detection
+  
+  When the "reason phrase" in the HTTP status line starts with a digit,
+  that was treated as the forth response code digit and curl would claim
+  the response to be non-compliant.
+  
+  Added test 1466 to verify this case.
+  
+  Regression brought by 5dc594e44f73b17
+  Reported-by: Glenn de boer
+  Fixes #7738
+  Closes #7739
+
+Jay Satiro (17 Sep 2021)
+- strerror: use sys_errlist instead of strerror on Windows
+  
+  - Change Curl_strerror to use sys_errlist[errnum] instead of strerror to
+    retrieve the error message on Windows.
+  
+  Windows' strerror writes to a static buffer and is not thread-safe.
+  
+  Follow-up to 2f0bb86 which removed most instances of strerror in favor
+  of calling Curl_strerror (which calls strerror_r for other platforms).
+  
+  Ref: https://github.com/curl/curl/pull/7685
+  Ref: https://github.com/curl/curl/commit/2f0bb86
+  
+  Closes https://github.com/curl/curl/pull/7735
+
+Daniel Stenberg (16 Sep 2021)
+- dist: provide lib/.checksrc in the tarball
+  
+  So that debug builds work (checksrc really)
+  
+  Reported-by: Marcel Raad
+  Reported-by: tawmoto on github
+  Fixes #7733
+  Closes #7734
+
+- TODO: Improve documentation about fork safety
+  
+  Closes #6968
+
+- hsts: CURLSTS_FAIL from hsts read callback should fail transfer
+  
+  ... and have CURLE_ABORTED_BY_CALLBACK returned.
+  
+  Extended test 1915 to verify.
+  
+  Reported-by: Jonathan Cardoso
+  Fixes #7726
+  Closes #7729
+
+- test1184: disable
+  
+  The test should be fine and it works for me repeated when run manually,
+  but clearly it causes CI failures and it needs more research.
+  
+  Reported-by: RiderALT on github
+  Fixes #7725
+  Closes #7732
+
+- Curl_http2_setup: don't change connection data on repeat invokes
+  
+  Regression from 3cb8a748670ab88c (releasde in 7.79.0). That change moved
+  transfer oriented inits to before the check but also erroneously moved a
+  few connection oriented ones, which causes problems.
+  
+  Reported-by: Evangelos Foutras
+  Fixes #7730
+  Closes #7731
+
+- RELEASE-NOTES: synced
+  
+  and bump to 7.79.1
+
+Kamil Dudka (16 Sep 2021)
+- tests/sshserver.pl: make it work with openssh-8.7p1
+  
+  ... by not using options with no argument where an argument is required:
+  
+  === Start of file tests/log/ssh_server.log
+  curl_sshd_config line 6: no argument after keyword "DenyGroups"
+  curl_sshd_config line 7: no argument after keyword "AllowGroups"
+  curl_sshd_config line 10: Deprecated option AuthorizedKeysFile2
+  curl_sshd_config line 29: Deprecated option KeyRegenerationInterval
+  curl_sshd_config line 39: Deprecated option RhostsRSAAuthentication
+  curl_sshd_config line 40: Deprecated option RSAAuthentication
+  curl_sshd_config line 41: Deprecated option ServerKeyBits
+  curl_sshd_config line 45: Deprecated option UseLogin
+  curl_sshd_config line 56: no argument after keyword "AcceptEnv"
+  curl_sshd_config: terminating, 3 bad configuration options
+  === End of file tests/log/ssh_server.log
+  
+  === Start of file log/sftp_server.log
+  curl_sftp_config line 33: Unsupported option "rhostsrsaauthentication"
+  curl_sftp_config line 34: Unsupported option "rsaauthentication"
+  curl_sftp_config line 52: no argument after keyword "sendenv"
+  curl_sftp_config: terminating, 1 bad configuration options
+  Connection closed.
+  Connection closed
+  === End of file log/sftp_server.log
+  
+  Closes #7724
+
+Daniel Stenberg (15 Sep 2021)
+- hsts: handle unlimited expiry
+  
+  When setting a blank expire string, meaning unlimited, curl would pass
+  TIME_T_MAX to getime_r() when creating the output, while on 64 bit
+  systems such a large value cannot be convetered to a tm struct making
+  curl to exit the loop with an error instead. It can't be converted
+  because the year it would represent doesn't fit in the 'int tm_year'
+  field!
+  
+  Starting now, unlimited expiry is instead handled differently by using a
+  human readable expiry date spelled out as "unlimited" instead of trying
+  to use a distant actual date.
+  
+  Test 1660 and 1915 have been updated to help verify this change.
+  
+  Reported-by: Jonathan Cardoso
+  Fixes #7720
+  Closes #7721
+
+- curl_multi_fdset: make FD_SET() not operate on sockets out of range
+  
+  The VALID_SOCK() macro was made to only check for FD_SETSIZE if curl was
+  built to use select(), even though the curl_multi_fdset() function
+  always and unconditionally uses FD_SET and needs the check.
+  
+  Reported-by: 0xee on github
+  Fixes #7718
+  Closes #7719
+
+- FAQ: add GOPHERS + curl works on data, not files
+
+Version 7.79.0 (14 Sep 2021)
+
+Daniel Stenberg (14 Sep 2021)
+- RELEASE-NOTES: synced
+  
+  For the 7.79.0 release
+
+- THANKS: add contributors from 7.79.0 release cycle
+
+- FAQ: add two dev related questions
+  
+    8.1 Why does curl use C89?
+    8.2 Will curl be rewritten?
+  
+  Spell-checked-by: Paul Johnson
+  Closes #7715
+
+- zuul.d/jobs: disable three tests for *-openssl-disable-proxy
+  
+  ... as they mysteriously seem to permfail without being related to
+  proxy.
+  
+  Closes #7714
+
+- [Patrick Monnerat brought this change]
+
+  ftp,imap,pop3,smtp: reject STARTTLS server response pipelining
+  
+  If a server pipelines future responses within the STARTTLS response, the
+  former are preserved in the pingpong cache across TLS negotiation and
+  used as responses to the encrypted commands.
+  
+  This fix detects pipelined STARTTLS responses and rejects them with an
+  error.
+  
+  CVE-2021-22947
+  
+  Bug: https://curl.se/docs/CVE-2021-22947.html
+
+- [Patrick Monnerat brought this change]
+
+  ftp,imap,pop3: do not ignore --ssl-reqd
+  
+  In imap and pop3, check if TLS is required even when capabilities
+  request has failed.
+  
+  In ftp, ignore preauthentication (230 status of server greeting) if TLS
+  is required.
+  
+  Bug: https://curl.se/docs/CVE-2021-22946.html
+  
+  CVE-2021-22946
+
+- [z2_ on hackerone brought this change]
+
+  mqtt: clear the leftovers pointer when sending succeeds
+  
+  CVE-2021-22945
+  
+  Bug: https://curl.se/docs/CVE-2021-22945.html
+
+- zuul: bump the rustls job to use v0.7.2
+  
+  ... and add -lm when using a rust library.
+  
+  Closes #7701
+
+- RELEASE-PROCEDURE: add release dates from now to 8.0.0 in 2023
+
+- SECURITY-PROCESS: tweak a little to match current practices
+  
+  Closes #7713
+
+- http_proxy: fix the User-Agent inclusion in CONNECT
+  
+  It should not refer to the uagent string that is allocated and created
+  for the end server http request, as that pointer may be cleared on
+  subsequent CONNECT requests.
+  
+  Added test case 1184 to verify.
+  
+  Reported-by: T200proX7 on github
+  Fixes #7705
+  Closes #7707
+
+- Curl_hsts_loadcb: don't attempt to load if hsts wasn't inited
+  
+  Reported-by: Jonathan Cardoso
+  Fixes #7710
+  Closes #7711
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: fix build with ngtcp2 and nghttp3
+  
+  ngtcp2_conn_client_new and nghttp3_conn_client_new are now macros.
+  Check the wrapped functions instead.
+  
+  ngtcp2_stream_close callback now takes flags parameter.
+  
+  Closes #7709
+
+- write-out.d: clarify size_download/upload
+  
+  They show the number of "body" bytes transfered.
+  Fixes #7702
+  Closes #7706
+
+- http2: Curl_http2_setup needs to init stream data in all invokes
+  
+  Thus function was written to avoid doing multiple connection data
+  initializations, which is fine, but since it also initiates stream
+  related data it is crucial that it doesn't skip those even if called
+  again for the same connection. Solved by moving the stream
+  initializations before the "doing-it-again" check.
+  
+  Reported-by: Inho Oh
+  Fixes #7630
+  Closes #7692
+
+- url: fix compiler warning in no-verbose builds
+  
+  Follow-up from 2f0bb864c12
+  
+  Closes #7700
+
+- non-ascii: fix build errors from strerror fix
+  
+  Follow-up to 2f0bb864c12
+  
+  Closes #7697
+
+- parse_args: redo the warnings for --remote-header-name combos
+  
+  ... to avoid the memory leak risk pointed out by scan-build.
+  
+  Follow-up from 7a3e981781d6c18a
+  
+  Closes #7698
+
+- ngtcp2: adapt to new size defintions upstream
+  
+  Reviewed-by: Tatsuhiro Tsujikawa
+  Closes #7699
+
+- rustls: add strerror.h include
+  
+  Follow-up to 2f0bb864c12
+
+- docs: the security list is reached at security at curl.se now
+  
+  Also update the FAQ section a bit to encourage users to rather submit
+  security issues on hackerone than sending email.
+  
+  Closes #7689
+
+Marc Hoersken (9 Sep 2021)
+- runtests: add option -u to error on server unexpectedly alive
+  
+  Let's try to actually handle the server unexpectedly alive
+  case by first making them visible on CI builds as failures.
+  
+  This is needed to detect issues with killing of the test
+  servers completely including nested process chains with
+  multiple PIDs per test server (including bash and perl).
+  
+  On Windows/cygwin platforms this is especially helpful with
+  debugging PID mixups due to cygwin using its own PID space.
+  
+  Reviewed-by: Daniel Stenberg
+  Closes #7180
+
+Daniel Stenberg (9 Sep 2021)
+- opts docs: unify phrasing in NAME header
+  
+  - avoid writing "set ..." or "enable/disable ..." or "specify ..."
+    *All* options for curl_easy_setopt() are about setting or enabling
+    things and most of the existing options didn't use that way of
+    description.
+  
+  - start with lowercase letter, unless abbreviation. For consistency.
+  
+  - Some additional touch-ups
+  
+  Closes #7688
+
+- strerror.h: remove the #include from files not using it
+
+- lib: don't use strerror()
+  
+  We have and provide Curl_strerror() internally for a reason: strerror()
+  is not necessarily thread-safe so we should always try to avoid it.
+  
+  Extended checksrc to warn for this, but feature the check disabled by
+  default and only enable it in lib/
+  
+  Closes #7685
+
+Daniel Gustafsson (8 Sep 2021)
+- cirrus: Add FreeBSD 13.0 job and disable sanitizer build
+  
+  As alluded to the in the now removed comment, a 13.0 image became
+  available and is now ready to be used.
+  
+  The sanitizer builds were running on the 12.1 image which since has
+  been removed from the config, leaving the builds not running at all.
+  When enabled it turns out that they don't actually work due to very
+  long timeouts in executing the tests, so keep the disabled for now
+  but a bit more controlled.
+  
+  Closes #7592
+
+Daniel Stenberg (8 Sep 2021)
+- copyrights: update copyright year ranges
+
+- RELEASE-NOTES: synced
+
+- INTERNALS: c-ares has a new home: c-ares.org
+
+- docs: remove experimental mentions from HSTS and MQTT
+  
+  Reported-by: Jonathan Cardoso
+  Bug: https://github.com/curl/curl/pull/6700#issuecomment-913792863
+  Closes #7681
+
+- [Cao ZhenXiang brought this change]
+
+  curl: add warning for incompatible parameters usage
+  
+  --continue-at - and --remote-header-name are known incompatible parameters
+  
+  Closes #7674
+
+- [git-bruh brought this change]
+
+  examples/*hiperfifo.c: fix calloc arguments to match function proto
+  
+  Closes #7678
+
+- INTERNALS: bump c-ares requirement to 1.16.0
+  
+  Since ba904db0705c93 we use ares_getaddrinfo, added in c-ares 1.16.0
+
+- curl: stop retry if Retry-After: is longer than allowed
+  
+  If Retry-After: specifies a period that is longer than what fits within
+  --retry-max-time, then stop retrying immediately.
+  
+  Added test 366 to verify.
+  
+  Reported-by: Kari Pahula
+  Fixes #7675
+  Closes #7676
+
+- [Michał Antoniak brought this change]
+
+  mbedtls: avoid using a large buffer on the stack
+  
+  Use dynamic memory allocation for the buffer used in checking "pinned
+  public key". The PUB_DER_MAX_BYTES parameter with default settings is
+  set to a value greater than 2kB.
+  
+  Co-authored-by: Daniel Stenberg
+  Closes #7586
+
+- configure: make --disable-hsts work
+  
+  The AC_ARG_ENABLE() macro itself uses a variable called
+  'enable_[option]', so when our script also used a variable with that
+  name for the purpose of storing what the user wants, it also
+  accidentally made it impossible to switch off the feature with
+  --disable-hsts. Fix this by renaming our variable.
+  
+  Reported-by: Michał Antoniak
+  Fixes #7669
+  Closes #7672
+
+Jay Satiro (5 Sep 2021)
+- config.d: note that curlrc is used even when --config
+  
+  Bug: https://github.com/curl/curl/pull/7666#issuecomment-912214751
+  Reported-by: Viktor Szakats
+  
+  Closes https://github.com/curl/curl/pull/7667
+
+Daniel Stenberg (4 Sep 2021)
+- RELEASE-NOTES: synced
+
+- test1173: check references to libcurl options
+  
+  ... that they refer to actual existing libcurl options.
+  
+  Reviewed-by: Daniel Gustafsson
+  Closes #7656
+
+- CURLOPT_UNIX_SOCKET_PATH.3: remove nginx reference, add see also
+  
+  Closes #7656
+
+- opt-docs: verify man page sections + order
+  
+  In every libcurl option man page there are now 8 mandatory sections that
+  must use the right name in the correct order and test 1173 verifies
+  this. Only 14 man pages needed adjustments.
+  
+  The sections and the order is as follows:
+  
+   - NAME
+   - SYNOPSIS
+   - DESCRIPTION
+   - PROTOCOLS
+   - EXAMPLE
+   - AVAILABILITY
+   - RETURN VALUE
+   - SEE ALSO
+  
+  Reviewed-by: Daniel Gustafsson
+  Closes #7656
+
+- opt-docs: make sure all man pages have examples
+  
+  Extended manpage-syntax.pl (run by test 1173) to check that every man
+  page for a libcurl option has an EXAMPLE section that is more than two
+  lines. Then fixed all errors it found and added examples.
+  
+  Reviewed-by: Daniel Gustafsson
+  Closes #7656
+
+- get.d: provide more useful examples
+  
+  Closes #7668
+
+- page-header: add GOPHERS, simplify wording in the 1st para
+  
+  Closes #7665
+
+- connect: get local port + ip also when reusing connections
+  
+  Regression. In d6a37c23a3c (7.75.0) we removed the duplicated storage
+  (connection + easy handle), so this info needs be extracted again even
+  for re-used connections.
+  
+  Add test 435 to verify
+  
+  Reported-by: Max Dymond
+  Fixes #7660
+  Closes #7662
+
+Marcel Raad (2 Sep 2021)
+- multi: fix compiler warning with `CURL_DISABLE_WAKEUP`
+  
+  `use_wakeup` is unused in this case.
+  
+  Closes https://github.com/curl/curl/pull/7661
+
+Daniel Stenberg (1 Sep 2021)
+- tests: adjust the tftpd output to work with hyper mode
+  
+  By making them look less like http headers, the hyper mode "tweak"
+  doesn't interfere.
+  
+  Enable test 2002 and 2003 in hyper builds (and 1280 which is unrelated
+  but should be enabled).
+  
+  Closes #7658
+
+Daniel Gustafsson (1 Sep 2021)
+- [Gisle Vanem brought this change]
+
+  openssl: annotate SSL3_MT_SUPPLEMENTAL_DATA
+  
+  This adds support for the previously unhandled supplemental data which
+  in -v output was printed like:
+  
+      TLSv1.2 (IN), TLS header, Unknown (23):
+  
+  These will now be printed with proper annotation:
+  
+      TLSv1.2 (OUT), TLS header, Supplemental data (23):
+  
+  Closes #7652
+  Reviewed-by: Daniel Stenberg 
+
+Daniel Stenberg (1 Sep 2021)
+- curl.1: provide examples for each option
+  
+  The file format for each option now features a "Example:" header that
+  can provide one or more examples that get rendered appropriately in the
+  output. All options MUST have at least one example or gen.pl complains
+  at build-time.
+  
+  This fix also does a few other minor format and consistency cleanups.
+  
+  Closes #7654
+
+- progress: make trspeed avoid floats
+  
+  and compiler warnings for data conversions.
+  
+  Reported-by: Michał Antoniak
+  Fixes #7645
+  Closes #7653
+
+- test365: verify response with chunked AND Content-Length headers
+
+- http: ignore content-length if any transfer-encoding is used
+  
+  Fixes #7643
+  Closes #7649
+
+- RELEASE-NOTES: synced
+
+- Revert "http2: skip immediate parsing of payload following protocol switch"
+  
+  This reverts commit 455a63c66f188598275e87d32de2c4e8e26b80cb.
+  
+  Reported-by: Tk Xiong
+  Fixes #7633
+  Closes #7648
+
+- KNOWN_BUGS: HTTP/3 doesn't support client certs
+  
+  Closes #7625
+
+- mailing lists: move from cool.haxx.se to lists.haxx.se
+
+- http_proxy: only wait for writable socket while sending request
+  
+  Otherwise it would wait socket writability even after the entire CONNECT
+  request has sent and make curl basically busy-loop while waiting for a
+  response to come back.
+  
+  The previous fix attempt in #7484 (c27a70a591a4) was inadequate.
+  
+  Reported-by: zloi-user on github
+  Reported-by: Oleguer Llopart
+  Fixes #7589
+  Closes #7647
+
+- http: disallow >3-digit response codes
+  
+  Make the built-in HTTP parser behave similar to hyper and reject any
+  HTTP response using more than 3 digits for the response code.
+  
+  Updated test 1432 accordingly.
+  Enabled test 1432 in the hyper builds.
+  
+  Closes #7641
+
+- [Tatsuhiro Tsujikawa brought this change]
+
+  ngtcp2: stop buffering crypto data
+  
+  Stop buffering crypto data because libngtcp2 now buffers submitted
+  crypto data.
+  
+  Closes #7637
+
+- test1280: CRLFify the response to please hyper
+  
+  Closes #7639
+
+- tests: enable test 1129 for hyper builds
+  
+  Closes #7638
+
+- curl: better error message when -O fails to get a good name
+  
+  Due to how this currently works internally, it needs a working initial
+  file name to store contents in, so it may still fail even with -J is
+  used (and thus accepting a name from content-disposition:) if the file
+  name part of the URL isn't "good enough".
+  
+  Fixes #7628
+  Closes #7635
+
+- curl_easy_setopt: tweak the string copy wording
+  
+  Reported-by: Yaobin Wen
+  Fixes #7632
+  Closes #7634
+
+- RELEASE-NOTES: synced
+
+- [Don J Olmstead brought this change]
+
+  cmake: sync CURL_DISABLE options
+  
+  Adds the full listing of CURL_DISABLE options to the CMake build. Moves
+  all option code, except for CURL_DISABLE_OPENSSL_AUTO_LOA_CONFIG which
+  resides near OpenSSL configuration, to the same block of code. Also
+  sorts the options here and in the cmake config header.
+  
+  Additionally sorted the CURL-DISABLE listing and fixed the
+  CURL_DISABLE_POP3 option.
+  
+  Closes #7624
+
+Jay Satiro (25 Aug 2021)
+- KNOWN_BUGS: FTPS upload data loss with TLS 1.3
+  
+  Bug: https://github.com/curl/curl/issues/6149
+  Reported-by: Bylon2@users.noreply.github.com
+  
+  Closes https://github.com/curl/curl/pull/7623
+
+Daniel Stenberg (24 Aug 2021)
+- cmake: avoid poll() on macOS
+  
+  ... like we do in configure builds. Since poll() on macOS is not
+  reliable enough.
+  
+  Reported-by: marc-groundctl
+  Fixes #7595
+  Closes #7619
+
+- c-hyper: handle HTTP/1.1 => HTTP/1.0 downgrade on reused connection
+  
+  Enable test 1074
+  
+  Closes #7617
+
+- c-hyper: deal with Expect: 100-continue combined with POSTFIELDS
+  
+  Enable test 1130 and 1131
+  
+  Closes #7616
+
+- [a1346054 brought this change]
+
+  tests: be explicit about using 'python3' instead of 'python'
+  
+  This fixes running tests in virtualenvs (or on distros) that no longer
+  have a symlink from python to python2 or python3.
+  
+  Closes #7602
+
+- [a1346054 brought this change]
+
+  scripts: invoke interpreters through /usr/bin/env
+  
+  Closes #7602
+
+- DISABLED: enable 11 more tests for hyper builds
+  
+  Closes #7612
+
+- setopt: enable CURLOPT_IGNORE_CONTENT_LENGTH for hyper
+  
+  Since this option is also used for FTP, it needs to work to set for
+  applications even if hyper doesn't support it for HTTP. Verified by test
+  1137.
+  
+  Updated docs to specify that the option doesn't work for HTTP when using
+  the hyper backend.
+  
+  Closes #7614
+
+- test1138: remove trailing space to make work with hyper
+  
+  Closes #7613
+
+- libcurl-errors.3: clarify two CURLUcode errors
+  
+  CURLUE_BAD_HANDLE and CURLUE_BAD_PARTPOINTER should be for "bad" or
+  wrong pointers in a generic sense, not just for NULL pointers.
+  
+  Reviewed-by: Jay Satiro
+  
+  Ref: #7605
+  Closes #7611
+
+Jay Satiro (23 Aug 2021)
+- symbols-in-versions: fix CURLSSLBACKEND_QSOSSL last used version
+  
+  ... and also change the 'Removed' column name to 'Last' since that
+  column is for the last version to contain the symbol.
+  
+  Closes https://github.com/curl/curl/pull/7609
+
+Daniel Stenberg (23 Aug 2021)
+- urlapi.c:seturl: assert URL instead of using if-check
+  
+  There's no code flow possible where this can happen. The assert makes
+  sure it also won't be introduced undetected in the future.
+  
+  Closes #7610
+
+- curl-openssl.m4: show correct output for OpenSSL v3
+  
+  Using 3.0.0 versions configure should now show this:
+  
+  checking for OpenSSL headers version... 3.0.0 - 0x300
+  checking for OpenSSL library version... 3.0.0
+  checking for OpenSSL headers and library versions matching... yes
+  
+  This output doesn't actually change what configure generates but is only
+  "cosmetic".
+  
+  Reported-by: Randall S. Becker
+  Fixes #7606
+  Closes #7608
diff --git a/curl/CMake/CMakeConfigurableFile.in b/curl/CMake/CMakeConfigurableFile.in
new file mode 100644
index 0000000..8ccd016
--- /dev/null
+++ b/curl/CMake/CMakeConfigurableFile.in
@@ -0,0 +1,22 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+@CMAKE_CONFIGURABLE_FILE_CONTENT@
diff --git a/curl/CMake/CurlSymbolHiding.cmake b/curl/CMake/CurlSymbolHiding.cmake
new file mode 100644
index 0000000..e99ea6f
--- /dev/null
+++ b/curl/CMake/CurlSymbolHiding.cmake
@@ -0,0 +1,76 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+include(CheckCSourceCompiles)
+
+option(CURL_HIDDEN_SYMBOLS "Set to ON to hide libcurl internal symbols (=hide all symbols that aren't officially external)." ON)
+mark_as_advanced(CURL_HIDDEN_SYMBOLS)
+
+if(CURL_HIDDEN_SYMBOLS)
+  set(SUPPORTS_SYMBOL_HIDING FALSE)
+
+  if(CMAKE_C_COMPILER_ID MATCHES "Clang" AND NOT MSVC)
+    set(SUPPORTS_SYMBOL_HIDING TRUE)
+    set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
+    set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
+  elseif(CMAKE_COMPILER_IS_GNUCC)
+    if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4)
+      # note: this is considered buggy prior to 4.0 but the autotools don't care, so let's ignore that fact
+      set(SUPPORTS_SYMBOL_HIDING TRUE)
+      set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
+      set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
+    endif()
+  elseif(CMAKE_C_COMPILER_ID MATCHES "SunPro" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.0)
+    set(SUPPORTS_SYMBOL_HIDING TRUE)
+    set(_SYMBOL_EXTERN "__global")
+    set(_CFLAG_SYMBOLS_HIDE "-xldscope=hidden")
+  elseif(CMAKE_C_COMPILER_ID MATCHES "Intel" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 9.0)
+    # note: this should probably just check for version 9.1.045 but I'm not 100% sure
+    #       so let's do it the same way autotools do.
+    set(SUPPORTS_SYMBOL_HIDING TRUE)
+    set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
+    set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
+    check_c_source_compiles("#include 
+        int main (void) { printf(\"icc fvisibility bug test\"); return 0; }" _no_bug)
+    if(NOT _no_bug)
+      set(SUPPORTS_SYMBOL_HIDING FALSE)
+      set(_SYMBOL_EXTERN "")
+      set(_CFLAG_SYMBOLS_HIDE "")
+    endif()
+  elseif(MSVC)
+    set(SUPPORTS_SYMBOL_HIDING TRUE)
+  endif()
+
+  set(HIDES_CURL_PRIVATE_SYMBOLS ${SUPPORTS_SYMBOL_HIDING})
+elseif(MSVC)
+  if(NOT CMAKE_VERSION VERSION_LESS 3.7)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE) #present since 3.4.3 but broken
+    set(HIDES_CURL_PRIVATE_SYMBOLS FALSE)
+  else()
+    message(WARNING "Hiding private symbols regardless CURL_HIDDEN_SYMBOLS being disabled.")
+    set(HIDES_CURL_PRIVATE_SYMBOLS TRUE)
+  endif()
+else()
+  set(HIDES_CURL_PRIVATE_SYMBOLS FALSE)
+endif()
+
+set(CURL_CFLAG_SYMBOLS_HIDE ${_CFLAG_SYMBOLS_HIDE})
+set(CURL_EXTERN_SYMBOL ${_SYMBOL_EXTERN})
diff --git a/curl/CMake/CurlTests.c b/curl/CMake/CurlTests.c
new file mode 100644
index 0000000..42addd7
--- /dev/null
+++ b/curl/CMake/CurlTests.c
@@ -0,0 +1,516 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#ifdef TIME_WITH_SYS_TIME
+/* Time with sys/time test */
+
+#include 
+#include 
+#include 
+
+int
+main ()
+{
+if ((struct tm *) 0)
+return 0;
+  ;
+  return 0;
+}
+
+#endif
+
+#ifdef HAVE_FCNTL_O_NONBLOCK
+
+/* headers for FCNTL_O_NONBLOCK test */
+#include 
+#include 
+#include 
+/* */
+#if defined(sun) || defined(__sun__) || \
+    defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+# if defined(__SVR4) || defined(__srv4__)
+#  define PLATFORM_SOLARIS
+# else
+#  define PLATFORM_SUNOS4
+# endif
+#endif
+#if (defined(_AIX) || defined(__xlC__)) && !defined(_AIX41)
+# define PLATFORM_AIX_V3
+#endif
+/* */
+#if defined(PLATFORM_SUNOS4) || defined(PLATFORM_AIX_V3)
+#error "O_NONBLOCK does not work on this platform"
+#endif
+
+int
+main ()
+{
+      /* O_NONBLOCK source test */
+      int flags = 0;
+      if(0 != fcntl(0, F_SETFL, flags | O_NONBLOCK))
+          return 1;
+      return 0;
+}
+#endif
+
+/* tests for gethostbyname_r */
+#if defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT) || \
+    defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT) || \
+    defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT)
+#   define _REENTRANT
+    /* no idea whether _REENTRANT is always set, just invent a new flag */
+#   define TEST_GETHOSTBYFOO_REENTRANT
+#endif
+#if defined(HAVE_GETHOSTBYNAME_R_3) || \
+    defined(HAVE_GETHOSTBYNAME_R_5) || \
+    defined(HAVE_GETHOSTBYNAME_R_6) || \
+    defined(TEST_GETHOSTBYFOO_REENTRANT)
+#include 
+#include 
+int main(void)
+{
+  char *address = "example.com";
+  int length = 0;
+  int type = 0;
+  struct hostent h;
+  int rc = 0;
+#if defined(HAVE_GETHOSTBYNAME_R_3) || \
+    defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT)
+  struct hostent_data hdata;
+#elif defined(HAVE_GETHOSTBYNAME_R_5) || \
+      defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT) || \
+      defined(HAVE_GETHOSTBYNAME_R_6) || \
+      defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT)
+  char buffer[8192];
+  int h_errnop;
+  struct hostent *hp;
+#endif
+
+#if   defined(HAVE_GETHOSTBYNAME_R_3) || \
+      defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT)
+  rc = gethostbyname_r(address, &h, &hdata);
+#elif defined(HAVE_GETHOSTBYNAME_R_5) || \
+      defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT)
+  rc = gethostbyname_r(address, &h, buffer, 8192, &h_errnop);
+  (void)hp; /* not used for test */
+#elif defined(HAVE_GETHOSTBYNAME_R_6) || \
+      defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT)
+  rc = gethostbyname_r(address, &h, buffer, 8192, &hp, &h_errnop);
+#endif
+
+  (void)length;
+  (void)type;
+  (void)rc;
+  return 0;
+}
+#endif
+
+#ifdef HAVE_SOCKLEN_T
+#ifdef _WIN32
+#include 
+#else
+#include 
+#include 
+#endif
+int
+main ()
+{
+if ((socklen_t *) 0)
+  return 0;
+if (sizeof (socklen_t))
+  return 0;
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_IN_ADDR_T
+#include 
+#include 
+#include 
+
+int
+main ()
+{
+if ((in_addr_t *) 0)
+  return 0;
+if (sizeof (in_addr_t))
+  return 0;
+  ;
+  return 0;
+}
+#endif
+
+#ifdef HAVE_BOOL_T
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_STDBOOL_H
+#include 
+#endif
+int
+main ()
+{
+if (sizeof (bool *) )
+  return 0;
+  ;
+  return 0;
+}
+#endif
+
+#ifdef STDC_HEADERS
+#include 
+#include 
+#include 
+#include 
+int main() { return 0; }
+#endif
+#ifdef HAVE_GETADDRINFO
+#include 
+#include 
+#include 
+
+int main(void) {
+    struct addrinfo hints, *ai;
+    int error;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+#ifndef getaddrinfo
+    (void)getaddrinfo;
+#endif
+    error = getaddrinfo("127.0.0.1", "8080", &hints, &ai);
+    if (error) {
+        return 1;
+    }
+    return 0;
+}
+#endif
+#ifdef HAVE_FILE_OFFSET_BITS
+#ifdef _FILE_OFFSET_BITS
+#undef _FILE_OFFSET_BITS
+#endif
+#define _FILE_OFFSET_BITS 64
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+                       && LARGE_OFF_T % 2147483647 == 1)
+                      ? 1 : -1];
+int main () { ; return 0; }
+#endif
+#ifdef HAVE_IOCTLSOCKET
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+
+int
+main ()
+{
+
+/* ioctlsocket source code */
+ int socket;
+ unsigned long flags = ioctlsocket(socket, FIONBIO, &flags);
+
+  ;
+  return 0;
+}
+
+#endif
+#ifdef HAVE_IOCTLSOCKET_CAMEL
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+
+int
+main ()
+{
+
+/* IoctlSocket source code */
+    if(0 != IoctlSocket(0, 0, 0))
+      return 1;
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_IOCTLSOCKET_CAMEL_FIONBIO
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+
+int
+main ()
+{
+
+/* IoctlSocket source code */
+        long flags = 0;
+        if(0 != IoctlSocket(0, FIONBIO, &flags))
+          return 1;
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_IOCTLSOCKET_FIONBIO
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+
+int
+main ()
+{
+
+        int flags = 0;
+        if(0 != ioctlsocket(0, FIONBIO, &flags))
+          return 1;
+
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_IOCTL_FIONBIO
+/* headers for FIONBIO test */
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_UNISTD_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#  include 
+#endif
+#ifdef HAVE_STROPTS_H
+#  include 
+#endif
+
+int
+main ()
+{
+
+        int flags = 0;
+        if(0 != ioctl(0, FIONBIO, &flags))
+          return 1;
+
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_IOCTL_SIOCGIFADDR
+/* headers for FIONBIO test */
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_UNISTD_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#  include 
+#endif
+#ifdef HAVE_STROPTS_H
+#  include 
+#endif
+#include 
+
+int
+main ()
+{
+        struct ifreq ifr;
+        if(0 != ioctl(0, SIOCGIFADDR, &ifr))
+          return 1;
+
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_SETSOCKOPT_SO_NONBLOCK
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+/* includes end */
+
+int
+main ()
+{
+        if(0 != setsockopt(0, SOL_SOCKET, SO_NONBLOCK, 0, 0))
+          return 1;
+  ;
+  return 0;
+}
+#endif
+#ifdef HAVE_GLIBC_STRERROR_R
+#include 
+#include 
+
+void check(char c) {}
+
+int
+main () {
+  char buffer[1024];
+  /* This will not compile if strerror_r does not return a char* */
+  check(strerror_r(EACCES, buffer, sizeof(buffer))[0]);
+  return 0;
+}
+#endif
+#ifdef HAVE_POSIX_STRERROR_R
+#include 
+#include 
+
+/* float, because a pointer can't be implicitly cast to float */
+void check(float f) {}
+
+int
+main () {
+  char buffer[1024];
+  /* This will not compile if strerror_r does not return an int */
+  check(strerror_r(EACCES, buffer, sizeof(buffer)));
+  return 0;
+}
+#endif
+#ifdef HAVE_FSETXATTR_6
+#include  /* header from libc, not from libattr */
+int
+main() {
+  fsetxattr(0, 0, 0, 0, 0, 0);
+  return 0;
+}
+#endif
+#ifdef HAVE_FSETXATTR_5
+#include  /* header from libc, not from libattr */
+int
+main() {
+  fsetxattr(0, 0, 0, 0, 0);
+  return 0;
+}
+#endif
+#ifdef HAVE_CLOCK_GETTIME_MONOTONIC
+#include 
+int
+main() {
+  struct timespec ts = {0, 0};
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  return 0;
+}
+#endif
+#ifdef HAVE_BUILTIN_AVAILABLE
+int
+main() {
+  if(__builtin_available(macOS 10.12, *)) {}
+  return 0;
+}
+#endif
+#ifdef HAVE_VARIADIC_MACROS_C99
+#define c99_vmacro3(first, ...) fun3(first, __VA_ARGS__)
+#define c99_vmacro2(first, ...) fun2(first, __VA_ARGS__)
+
+int fun3(int arg1, int arg2, int arg3);
+int fun2(int arg1, int arg2);
+
+int fun3(int arg1, int arg2, int arg3) {
+  return arg1 + arg2 + arg3;
+}
+int fun2(int arg1, int arg2) {
+  return arg1 + arg2;
+}
+
+int
+main() {
+  int res3 = c99_vmacro3(1, 2, 3);
+  int res2 = c99_vmacro2(1, 2);
+  (void)res3;
+  (void)res2;
+  return 0;
+}
+#endif
+#ifdef HAVE_VARIADIC_MACROS_GCC
+#define gcc_vmacro3(first, args...) fun3(first, args)
+#define gcc_vmacro2(first, args...) fun2(first, args)
+
+int fun3(int arg1, int arg2, int arg3);
+int fun2(int arg1, int arg2);
+
+int fun3(int arg1, int arg2, int arg3) {
+  return arg1 + arg2 + arg3;
+}
+int fun2(int arg1, int arg2) {
+  return arg1 + arg2;
+}
+
+int
+main() {
+  int res3 = gcc_vmacro3(1, 2, 3);
+  int res2 = gcc_vmacro2(1, 2);
+  (void)res3;
+  (void)res2;
+  return 0;
+}
+#endif
diff --git a/curl/CMake/FindBearSSL.cmake b/curl/CMake/FindBearSSL.cmake
new file mode 100644
index 0000000..9455f4b
--- /dev/null
+++ b/curl/CMake/FindBearSSL.cmake
@@ -0,0 +1,30 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+find_path(BEARSSL_INCLUDE_DIRS bearssl.h)
+
+find_library(BEARSSL_LIBRARY bearssl)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(BEARSSL DEFAULT_MSG
+    BEARSSL_INCLUDE_DIRS BEARSSL_LIBRARY)
+
+mark_as_advanced(BEARSSL_INCLUDE_DIRS BEARSSL_LIBRARY)
diff --git a/curl/CMake/FindBrotli.cmake b/curl/CMake/FindBrotli.cmake
new file mode 100644
index 0000000..0ed0855
--- /dev/null
+++ b/curl/CMake/FindBrotli.cmake
@@ -0,0 +1,41 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+include(FindPackageHandleStandardArgs)
+
+find_path(BROTLI_INCLUDE_DIR "brotli/decode.h")
+
+find_library(BROTLICOMMON_LIBRARY NAMES brotlicommon)
+find_library(BROTLIDEC_LIBRARY NAMES brotlidec)
+
+find_package_handle_standard_args(BROTLI
+    FOUND_VAR
+      BROTLI_FOUND
+    REQUIRED_VARS
+      BROTLIDEC_LIBRARY
+      BROTLICOMMON_LIBRARY
+      BROTLI_INCLUDE_DIR
+    FAIL_MESSAGE
+      "Could NOT find BROTLI"
+)
+
+set(BROTLI_INCLUDE_DIRS ${BROTLI_INCLUDE_DIR})
+set(BROTLI_LIBRARIES ${BROTLICOMMON_LIBRARY} ${BROTLIDEC_LIBRARY})
diff --git a/curl/CMake/FindCARES.cmake b/curl/CMake/FindCARES.cmake
new file mode 100644
index 0000000..7180682
--- /dev/null
+++ b/curl/CMake/FindCARES.cmake
@@ -0,0 +1,45 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# - Find c-ares
+# Find the c-ares includes and library
+# This module defines
+#  CARES_INCLUDE_DIR, where to find ares.h, etc.
+#  CARES_LIBRARIES, the libraries needed to use c-ares.
+#  CARES_FOUND, If false, do not try to use c-ares.
+# also defined, but not for general use are
+# CARES_LIBRARY, where to find the c-ares library.
+
+find_path(CARES_INCLUDE_DIR ares.h)
+
+set(CARES_NAMES ${CARES_NAMES} cares)
+find_library(CARES_LIBRARY
+  NAMES ${CARES_NAMES}
+  )
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(CARES
+    REQUIRED_VARS CARES_LIBRARY CARES_INCLUDE_DIR)
+
+mark_as_advanced(
+  CARES_LIBRARY
+  CARES_INCLUDE_DIR
+  )
diff --git a/curl/CMake/FindGSS.cmake b/curl/CMake/FindGSS.cmake
new file mode 100644
index 0000000..4e4747d
--- /dev/null
+++ b/curl/CMake/FindGSS.cmake
@@ -0,0 +1,310 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# - Try to find the GSS Kerberos library
+# Once done this will define
+#
+#  GSS_ROOT_DIR - Set this variable to the root installation of GSS
+#
+# Read-Only variables:
+#  GSS_FOUND - system has the Heimdal library
+#  GSS_FLAVOUR - "MIT" or "Heimdal" if anything found.
+#  GSS_INCLUDE_DIR - the Heimdal include directory
+#  GSS_LIBRARIES - The libraries needed to use GSS
+#  GSS_LINK_DIRECTORIES - Directories to add to linker search path
+#  GSS_LINKER_FLAGS - Additional linker flags
+#  GSS_COMPILER_FLAGS - Additional compiler flags
+#  GSS_VERSION - This is set to version advertised by pkg-config or read from manifest.
+#                In case the library is found but no version info available it'll be set to "unknown"
+
+set(_MIT_MODNAME mit-krb5-gssapi)
+set(_HEIMDAL_MODNAME heimdal-gssapi)
+
+include(CheckIncludeFile)
+include(CheckIncludeFiles)
+include(CheckTypeSize)
+
+set(_GSS_ROOT_HINTS
+    "${GSS_ROOT_DIR}"
+    "$ENV{GSS_ROOT_DIR}"
+)
+
+# try to find library using system pkg-config if user didn't specify root dir
+if(NOT GSS_ROOT_DIR AND NOT "$ENV{GSS_ROOT_DIR}")
+  if(UNIX)
+    find_package(PkgConfig QUIET)
+    pkg_search_module(_GSS_PKG ${_MIT_MODNAME} ${_HEIMDAL_MODNAME})
+    list(APPEND _GSS_ROOT_HINTS "${_GSS_PKG_PREFIX}")
+  elseif(WIN32)
+    list(APPEND _GSS_ROOT_HINTS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos;InstallDir]")
+  endif()
+endif()
+
+if(NOT _GSS_FOUND) #not found by pkg-config. Let's take more traditional approach.
+  find_file(_GSS_CONFIGURE_SCRIPT
+      NAMES
+          "krb5-config"
+      HINTS
+          ${_GSS_ROOT_HINTS}
+      PATH_SUFFIXES
+          bin
+      NO_CMAKE_PATH
+      NO_CMAKE_ENVIRONMENT_PATH
+  )
+
+  # if not found in user-supplied directories, maybe system knows better
+  find_file(_GSS_CONFIGURE_SCRIPT
+      NAMES
+          "krb5-config"
+      PATH_SUFFIXES
+          bin
+  )
+
+  if(_GSS_CONFIGURE_SCRIPT)
+    execute_process(
+          COMMAND ${_GSS_CONFIGURE_SCRIPT} "--cflags" "gssapi"
+          OUTPUT_VARIABLE _GSS_CFLAGS
+          RESULT_VARIABLE _GSS_CONFIGURE_FAILED
+          OUTPUT_STRIP_TRAILING_WHITESPACE
+      )
+    message(STATUS "CFLAGS: ${_GSS_CFLAGS}")
+    if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
+      # should also work in an odd case when multiple directories are given
+      string(STRIP "${_GSS_CFLAGS}" _GSS_CFLAGS)
+      string(REGEX REPLACE " +-I" ";" _GSS_CFLAGS "${_GSS_CFLAGS}")
+      string(REGEX REPLACE " +-([^I][^ \\t;]*)" ";-\\1" _GSS_CFLAGS "${_GSS_CFLAGS}")
+
+      foreach(_flag ${_GSS_CFLAGS})
+        if(_flag MATCHES "^-I.*")
+          string(REGEX REPLACE "^-I" "" _val "${_flag}")
+          list(APPEND _GSS_INCLUDE_DIR "${_val}")
+        else()
+          list(APPEND _GSS_COMPILER_FLAGS "${_flag}")
+        endif()
+      endforeach()
+    endif()
+
+    execute_process(
+        COMMAND ${_GSS_CONFIGURE_SCRIPT} "--libs" "gssapi"
+        OUTPUT_VARIABLE _GSS_LIB_FLAGS
+        RESULT_VARIABLE _GSS_CONFIGURE_FAILED
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    message(STATUS "LDFLAGS: ${_GSS_LIB_FLAGS}")
+
+    if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
+      # this script gives us libraries and link directories. Blah. We have to deal with it.
+      string(STRIP "${_GSS_LIB_FLAGS}" _GSS_LIB_FLAGS)
+      string(REGEX REPLACE " +-(L|l)" ";-\\1" _GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
+      string(REGEX REPLACE " +-([^Ll][^ \\t;]*)" ";-\\1" _GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
+
+      foreach(_flag ${_GSS_LIB_FLAGS})
+        if(_flag MATCHES "^-l.*")
+          string(REGEX REPLACE "^-l" "" _val "${_flag}")
+          list(APPEND _GSS_LIBRARIES "${_val}")
+        elseif(_flag MATCHES "^-L.*")
+          string(REGEX REPLACE "^-L" "" _val "${_flag}")
+          list(APPEND _GSS_LINK_DIRECTORIES "${_val}")
+        else()
+          list(APPEND _GSS_LINKER_FLAGS "${_flag}")
+        endif()
+      endforeach()
+    endif()
+
+    execute_process(
+        COMMAND ${_GSS_CONFIGURE_SCRIPT} "--version"
+        OUTPUT_VARIABLE _GSS_VERSION
+        RESULT_VARIABLE _GSS_CONFIGURE_FAILED
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+
+    # older versions may not have the "--version" parameter. In this case we just don't care.
+    if(_GSS_CONFIGURE_FAILED)
+      set(_GSS_VERSION 0)
+    endif()
+
+    execute_process(
+        COMMAND ${_GSS_CONFIGURE_SCRIPT} "--vendor"
+        OUTPUT_VARIABLE _GSS_VENDOR
+        RESULT_VARIABLE _GSS_CONFIGURE_FAILED
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+
+    # older versions may not have the "--vendor" parameter. In this case we just don't care.
+    if(_GSS_CONFIGURE_FAILED)
+      set(GSS_FLAVOUR "Heimdal") # most probably, shouldn't really matter
+    else()
+      if(_GSS_VENDOR MATCHES ".*H|heimdal.*")
+        set(GSS_FLAVOUR "Heimdal")
+      else()
+        set(GSS_FLAVOUR "MIT")
+      endif()
+    endif()
+
+  else() # either there is no config script or we are on a platform that doesn't provide one (Windows?)
+
+    find_path(_GSS_INCLUDE_DIR
+        NAMES
+            "gssapi/gssapi.h"
+        HINTS
+            ${_GSS_ROOT_HINTS}
+        PATH_SUFFIXES
+            include
+            inc
+    )
+
+    if(_GSS_INCLUDE_DIR) #jay, we've found something
+      set(CMAKE_REQUIRED_INCLUDES "${_GSS_INCLUDE_DIR}")
+      check_include_files( "gssapi/gssapi_generic.h;gssapi/gssapi_krb5.h" _GSS_HAVE_MIT_HEADERS)
+
+      if(_GSS_HAVE_MIT_HEADERS)
+        set(GSS_FLAVOUR "MIT")
+      else()
+        # prevent compiling the header - just check if we can include it
+        set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D__ROKEN_H__")
+        check_include_file( "roken.h" _GSS_HAVE_ROKEN_H)
+
+        check_include_file( "heimdal/roken.h" _GSS_HAVE_HEIMDAL_ROKEN_H)
+        if(_GSS_HAVE_ROKEN_H OR _GSS_HAVE_HEIMDAL_ROKEN_H)
+          set(GSS_FLAVOUR "Heimdal")
+        endif()
+        set(CMAKE_REQUIRED_DEFINITIONS "")
+      endif()
+    else()
+      # I'm not convinced if this is the right way but this is what autotools do at the moment
+      find_path(_GSS_INCLUDE_DIR
+          NAMES
+              "gssapi.h"
+          HINTS
+              ${_GSS_ROOT_HINTS}
+          PATH_SUFFIXES
+              include
+              inc
+      )
+
+      if(_GSS_INCLUDE_DIR)
+        set(GSS_FLAVOUR "Heimdal")
+      endif()
+    endif()
+
+    # if we have headers, check if we can link libraries
+    if(GSS_FLAVOUR)
+      set(_GSS_LIBDIR_SUFFIXES "")
+      set(_GSS_LIBDIR_HINTS ${_GSS_ROOT_HINTS})
+      get_filename_component(_GSS_CALCULATED_POTENTIAL_ROOT "${_GSS_INCLUDE_DIR}" PATH)
+      list(APPEND _GSS_LIBDIR_HINTS ${_GSS_CALCULATED_POTENTIAL_ROOT})
+
+      if(WIN32)
+        if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+          list(APPEND _GSS_LIBDIR_SUFFIXES "lib/AMD64")
+          if(GSS_FLAVOUR STREQUAL "MIT")
+            set(_GSS_LIBNAME "gssapi64")
+          else()
+            set(_GSS_LIBNAME "libgssapi")
+          endif()
+        else()
+          list(APPEND _GSS_LIBDIR_SUFFIXES "lib/i386")
+          if(GSS_FLAVOUR STREQUAL "MIT")
+            set(_GSS_LIBNAME "gssapi32")
+          else()
+            set(_GSS_LIBNAME "libgssapi")
+          endif()
+        endif()
+      else()
+        list(APPEND _GSS_LIBDIR_SUFFIXES "lib;lib64") # those suffixes are not checked for HINTS
+        if(GSS_FLAVOUR STREQUAL "MIT")
+          set(_GSS_LIBNAME "gssapi_krb5")
+        else()
+          set(_GSS_LIBNAME "gssapi")
+        endif()
+      endif()
+
+      find_library(_GSS_LIBRARIES
+          NAMES
+              ${_GSS_LIBNAME}
+          HINTS
+              ${_GSS_LIBDIR_HINTS}
+          PATH_SUFFIXES
+              ${_GSS_LIBDIR_SUFFIXES}
+      )
+
+    endif()
+  endif()
+else()
+  if(_GSS_PKG_${_MIT_MODNAME}_VERSION)
+    set(GSS_FLAVOUR "MIT")
+    set(_GSS_VERSION _GSS_PKG_${_MIT_MODNAME}_VERSION)
+  else()
+    set(GSS_FLAVOUR "Heimdal")
+    set(_GSS_VERSION _GSS_PKG_${_MIT_HEIMDAL}_VERSION)
+  endif()
+endif()
+
+set(GSS_INCLUDE_DIR ${_GSS_INCLUDE_DIR})
+set(GSS_LIBRARIES ${_GSS_LIBRARIES})
+set(GSS_LINK_DIRECTORIES ${_GSS_LINK_DIRECTORIES})
+set(GSS_LINKER_FLAGS ${_GSS_LINKER_FLAGS})
+set(GSS_COMPILER_FLAGS ${_GSS_COMPILER_FLAGS})
+set(GSS_VERSION ${_GSS_VERSION})
+
+if(GSS_FLAVOUR)
+  if(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "Heimdal")
+    if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+      set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.amd64.manifest")
+    else()
+      set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.x86.manifest")
+    endif()
+
+    if(EXISTS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}")
+      file(STRINGS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}" heimdal_version_str
+           REGEX "^.*version=\"[0-9]\\.[^\"]+\".*$")
+
+      string(REGEX MATCH "[0-9]\\.[^\"]+"
+             GSS_VERSION "${heimdal_version_str}")
+    endif()
+
+    if(NOT GSS_VERSION)
+      set(GSS_VERSION "Heimdal Unknown")
+    endif()
+  elseif(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "MIT")
+    get_filename_component(_MIT_VERSION "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos\\SDK\\CurrentVersion;VersionString]" NAME CACHE)
+    if(WIN32 AND _MIT_VERSION)
+      set(GSS_VERSION "${_MIT_VERSION}")
+    else()
+      set(GSS_VERSION "MIT Unknown")
+    endif()
+  endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+
+set(_GSS_REQUIRED_VARS GSS_LIBRARIES GSS_FLAVOUR)
+
+find_package_handle_standard_args(GSS
+    REQUIRED_VARS
+        ${_GSS_REQUIRED_VARS}
+    VERSION_VAR
+        GSS_VERSION
+    FAIL_MESSAGE
+        "Could NOT find GSS, try to set the path to GSS root folder in the system variable GSS_ROOT_DIR"
+)
+
+mark_as_advanced(GSS_INCLUDE_DIR GSS_LIBRARIES)
diff --git a/curl/CMake/FindLibSSH2.cmake b/curl/CMake/FindLibSSH2.cmake
new file mode 100644
index 0000000..ce46a40
--- /dev/null
+++ b/curl/CMake/FindLibSSH2.cmake
@@ -0,0 +1,43 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# - Try to find the libssh2 library
+# Once done this will define
+#
+# LIBSSH2_FOUND - system has the libssh2 library
+# LIBSSH2_INCLUDE_DIR - the libssh2 include directory
+# LIBSSH2_LIBRARY - the libssh2 library name
+
+find_path(LIBSSH2_INCLUDE_DIR libssh2.h)
+
+find_library(LIBSSH2_LIBRARY NAMES ssh2 libssh2)
+
+if(LIBSSH2_INCLUDE_DIR)
+  file(STRINGS "${LIBSSH2_INCLUDE_DIR}/libssh2.h" libssh2_version_str REGEX "^#define[\t ]+LIBSSH2_VERSION[\t ]+\"(.*)\"")
+  string(REGEX REPLACE "^.*\"([^\"]+)\"" "\\1"  LIBSSH2_VERSION "${libssh2_version_str}")
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LibSSH2
+    REQUIRED_VARS LIBSSH2_LIBRARY LIBSSH2_INCLUDE_DIR
+    VERSION_VAR LIBSSH2_VERSION)
+
+mark_as_advanced(LIBSSH2_INCLUDE_DIR LIBSSH2_LIBRARY)
diff --git a/curl/CMake/FindMSH3.cmake b/curl/CMake/FindMSH3.cmake
new file mode 100644
index 0000000..1b8b9d8
--- /dev/null
+++ b/curl/CMake/FindMSH3.cmake
@@ -0,0 +1,68 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#[=======================================================================[.rst:
+FindMSH3
+----------
+
+Find the msh3 library
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+``MSH3_FOUND``
+  System has msh3
+``MSH3_INCLUDE_DIRS``
+  The msh3 include directories.
+``MSH3_LIBRARIES``
+  The libraries needed to use msh3
+#]=======================================================================]
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_MSH3 libmsh3)
+endif()
+
+find_path(MSH3_INCLUDE_DIR msh3.h
+  HINTS
+    ${PC_MSH3_INCLUDEDIR}
+    ${PC_MSH3_INCLUDE_DIRS}
+)
+
+find_library(MSH3_LIBRARY NAMES msh3
+  HINTS
+    ${PC_MSH3_LIBDIR}
+    ${PC_MSH3_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(MSH3
+  REQUIRED_VARS
+    MSH3_LIBRARY
+    MSH3_INCLUDE_DIR
+)
+
+if(MSH3_FOUND)
+  set(MSH3_LIBRARIES    ${MSH3_LIBRARY})
+  set(MSH3_INCLUDE_DIRS ${MSH3_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(MSH3_INCLUDE_DIRS MSH3_LIBRARIES)
diff --git a/curl/CMake/FindMbedTLS.cmake b/curl/CMake/FindMbedTLS.cmake
new file mode 100644
index 0000000..7bdb197
--- /dev/null
+++ b/curl/CMake/FindMbedTLS.cmake
@@ -0,0 +1,34 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+find_path(MBEDTLS_INCLUDE_DIRS mbedtls/ssl.h)
+
+find_library(MBEDTLS_LIBRARY mbedtls)
+find_library(MBEDX509_LIBRARY mbedx509)
+find_library(MBEDCRYPTO_LIBRARY mbedcrypto)
+
+set(MBEDTLS_LIBRARIES "${MBEDTLS_LIBRARY}" "${MBEDX509_LIBRARY}" "${MBEDCRYPTO_LIBRARY}")
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(MbedTLS DEFAULT_MSG
+    MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARY MBEDX509_LIBRARY MBEDCRYPTO_LIBRARY)
+
+mark_as_advanced(MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARY MBEDX509_LIBRARY MBEDCRYPTO_LIBRARY)
diff --git a/curl/CMake/FindNGHTTP2.cmake b/curl/CMake/FindNGHTTP2.cmake
new file mode 100644
index 0000000..8614492
--- /dev/null
+++ b/curl/CMake/FindNGHTTP2.cmake
@@ -0,0 +1,39 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+include(FindPackageHandleStandardArgs)
+
+find_path(NGHTTP2_INCLUDE_DIR "nghttp2/nghttp2.h")
+
+find_library(NGHTTP2_LIBRARY NAMES nghttp2)
+
+find_package_handle_standard_args(NGHTTP2
+    FOUND_VAR
+      NGHTTP2_FOUND
+    REQUIRED_VARS
+      NGHTTP2_LIBRARY
+      NGHTTP2_INCLUDE_DIR
+)
+
+set(NGHTTP2_INCLUDE_DIRS ${NGHTTP2_INCLUDE_DIR})
+set(NGHTTP2_LIBRARIES ${NGHTTP2_LIBRARY})
+
+mark_as_advanced(NGHTTP2_INCLUDE_DIRS NGHTTP2_LIBRARIES)
diff --git a/curl/CMake/FindNGHTTP3.cmake b/curl/CMake/FindNGHTTP3.cmake
new file mode 100644
index 0000000..643b600
--- /dev/null
+++ b/curl/CMake/FindNGHTTP3.cmake
@@ -0,0 +1,76 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#[=======================================================================[.rst:
+FindNGHTTP3
+----------
+
+Find the nghttp3 library
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+``NGHTTP3_FOUND``
+  System has nghttp3
+``NGHTTP3_INCLUDE_DIRS``
+  The nghttp3 include directories.
+``NGHTTP3_LIBRARIES``
+  The libraries needed to use nghttp3
+``NGHTTP3_VERSION``
+  version of nghttp3.
+#]=======================================================================]
+
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_NGHTTP3 libnghttp3)
+endif()
+
+find_path(NGHTTP3_INCLUDE_DIR nghttp3/nghttp3.h
+  HINTS
+    ${PC_NGHTTP3_INCLUDEDIR}
+    ${PC_NGHTTP3_INCLUDE_DIRS}
+)
+
+find_library(NGHTTP3_LIBRARY NAMES nghttp3
+  HINTS
+    ${PC_NGHTTP3_LIBDIR}
+    ${PC_NGHTTP3_LIBRARY_DIRS}
+)
+
+if(PC_NGHTTP3_VERSION)
+  set(NGHTTP3_VERSION ${PC_NGHTTP3_VERSION})
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(NGHTTP3
+  REQUIRED_VARS
+    NGHTTP3_LIBRARY
+    NGHTTP3_INCLUDE_DIR
+  VERSION_VAR NGHTTP3_VERSION
+)
+
+if(NGHTTP3_FOUND)
+  set(NGHTTP3_LIBRARIES    ${NGHTTP3_LIBRARY})
+  set(NGHTTP3_INCLUDE_DIRS ${NGHTTP3_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(NGHTTP3_INCLUDE_DIRS NGHTTP3_LIBRARIES)
diff --git a/curl/CMake/FindNGTCP2.cmake b/curl/CMake/FindNGTCP2.cmake
new file mode 100644
index 0000000..5757009
--- /dev/null
+++ b/curl/CMake/FindNGTCP2.cmake
@@ -0,0 +1,113 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#[=======================================================================[.rst:
+FindNGTCP2
+----------
+
+Find the ngtcp2 library
+
+This module accepts optional COMPONENTS to control the crypto library (these are
+mutually exclusive)::
+
+  OpenSSL:  Use libngtcp2_crypto_openssl
+  GnuTLS:   Use libngtcp2_crypto_gnutls
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+``NGTCP2_FOUND``
+  System has ngtcp2
+``NGTCP2_INCLUDE_DIRS``
+  The ngtcp2 include directories.
+``NGTCP2_LIBRARIES``
+  The libraries needed to use ngtcp2
+``NGTCP2_VERSION``
+  version of ngtcp2.
+#]=======================================================================]
+
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_NGTCP2 libngtcp2)
+endif()
+
+find_path(NGTCP2_INCLUDE_DIR ngtcp2/ngtcp2.h
+  HINTS
+    ${PC_NGTCP2_INCLUDEDIR}
+    ${PC_NGTCP2_INCLUDE_DIRS}
+)
+
+find_library(NGTCP2_LIBRARY NAMES ngtcp2
+  HINTS
+    ${PC_NGTCP2_LIBDIR}
+    ${PC_NGTCP2_LIBRARY_DIRS}
+)
+
+if(PC_NGTCP2_VERSION)
+  set(NGTCP2_VERSION ${PC_NGTCP2_VERSION})
+endif()
+
+if(NGTCP2_FIND_COMPONENTS)
+  set(NGTCP2_CRYPTO_BACKEND "")
+  foreach(component IN LISTS NGTCP2_FIND_COMPONENTS)
+    if(component MATCHES "^(OpenSSL|GnuTLS)")
+      if(NGTCP2_CRYPTO_BACKEND)
+        message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
+      endif()
+      set(NGTCP2_CRYPTO_BACKEND ${component})
+    endif()
+  endforeach()
+
+  if(NGTCP2_CRYPTO_BACKEND)
+    string(TOLOWER "ngtcp2_crypto_${NGTCP2_CRYPTO_BACKEND}" _crypto_library)
+    if(UNIX)
+      pkg_search_module(PC_${_crypto_library} lib${_crypto_library})
+    endif()
+    find_library(${_crypto_library}_LIBRARY
+      NAMES
+        ${_crypto_library}
+      HINTS
+        ${PC_${_crypto_library}_LIBDIR}
+        ${PC_${_crypto_library}_LIBRARY_DIRS}
+    )
+    if(${_crypto_library}_LIBRARY)
+      set(NGTCP2_${NGTCP2_CRYPTO_BACKEND}_FOUND TRUE)
+      set(NGTCP2_CRYPTO_LIBRARY ${${_crypto_library}_LIBRARY})
+    endif()
+  endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(NGTCP2
+  REQUIRED_VARS
+    NGTCP2_LIBRARY
+    NGTCP2_INCLUDE_DIR
+  VERSION_VAR NGTCP2_VERSION
+  HANDLE_COMPONENTS
+)
+
+if(NGTCP2_FOUND)
+  set(NGTCP2_LIBRARIES    ${NGTCP2_LIBRARY} ${NGTCP2_CRYPTO_LIBRARY})
+  set(NGTCP2_INCLUDE_DIRS ${NGTCP2_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(NGTCP2_INCLUDE_DIRS NGTCP2_LIBRARIES)
diff --git a/curl/CMake/FindNSS.cmake b/curl/CMake/FindNSS.cmake
new file mode 100644
index 0000000..899c6b0
--- /dev/null
+++ b/curl/CMake/FindNSS.cmake
@@ -0,0 +1,38 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_NSS nss)
+endif()
+if(NOT PC_NSS_FOUND)
+  return()
+endif()
+
+set(NSS_LIBRARIES ${PC_NSS_LINK_LIBRARIES})
+set(NSS_INCLUDE_DIRS ${PC_NSS_INCLUDE_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(NSS
+    REQUIRED_VARS NSS_LIBRARIES NSS_INCLUDE_DIRS
+    VERSION_VAR PC_NSS_VERSION)
+
+mark_as_advanced(NSS_INCLUDE_DIRS NSS_LIBRARIES)
diff --git a/curl/CMake/FindQUICHE.cmake b/curl/CMake/FindQUICHE.cmake
new file mode 100644
index 0000000..0247364
--- /dev/null
+++ b/curl/CMake/FindQUICHE.cmake
@@ -0,0 +1,68 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#[=======================================================================[.rst:
+FindQUICHE
+----------
+
+Find the quiche library
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+``QUICHE_FOUND``
+  System has quiche
+``QUICHE_INCLUDE_DIRS``
+  The quiche include directories.
+``QUICHE_LIBRARIES``
+  The libraries needed to use quiche
+#]=======================================================================]
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_QUICHE quiche)
+endif()
+
+find_path(QUICHE_INCLUDE_DIR quiche.h
+  HINTS
+    ${PC_QUICHE_INCLUDEDIR}
+    ${PC_QUICHE_INCLUDE_DIRS}
+)
+
+find_library(QUICHE_LIBRARY NAMES quiche
+  HINTS
+    ${PC_QUICHE_LIBDIR}
+    ${PC_QUICHE_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(QUICHE
+  REQUIRED_VARS
+    QUICHE_LIBRARY
+    QUICHE_INCLUDE_DIR
+)
+
+if(QUICHE_FOUND)
+  set(QUICHE_LIBRARIES    ${QUICHE_LIBRARY})
+  set(QUICHE_INCLUDE_DIRS ${QUICHE_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(QUICHE_INCLUDE_DIRS QUICHE_LIBRARIES)
diff --git a/curl/CMake/FindWolfSSL.cmake b/curl/CMake/FindWolfSSL.cmake
new file mode 100644
index 0000000..42256b3
--- /dev/null
+++ b/curl/CMake/FindWolfSSL.cmake
@@ -0,0 +1,34 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+find_path(WolfSSL_INCLUDE_DIR NAMES wolfssl/ssl.h)
+find_library(WolfSSL_LIBRARY NAMES wolfssl)
+mark_as_advanced(WolfSSL_INCLUDE_DIR WolfSSL_LIBRARY)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(WolfSSL
+  REQUIRED_VARS WolfSSL_INCLUDE_DIR WolfSSL_LIBRARY
+  )
+
+if(WolfSSL_FOUND)
+  set(WolfSSL_INCLUDE_DIRS ${WolfSSL_INCLUDE_DIR})
+  set(WolfSSL_LIBRARIES ${WolfSSL_LIBRARY})
+endif()
diff --git a/curl/CMake/FindZstd.cmake b/curl/CMake/FindZstd.cmake
new file mode 100644
index 0000000..eaba397
--- /dev/null
+++ b/curl/CMake/FindZstd.cmake
@@ -0,0 +1,69 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#[=======================================================================[.rst:
+FindZstd
+----------
+
+Find the zstd library
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+``Zstd_FOUND``
+  System has zstd
+``Zstd_INCLUDE_DIRS``
+  The zstd include directories.
+``Zstd_LIBRARIES``
+  The libraries needed to use zstd
+#]=======================================================================]
+
+if(UNIX)
+  find_package(PkgConfig QUIET)
+  pkg_search_module(PC_Zstd libzstd)
+endif()
+
+find_path(Zstd_INCLUDE_DIR zstd.h
+  HINTS
+    ${PC_Zstd_INCLUDEDIR}
+    ${PC_Zstd_INCLUDE_DIRS}
+)
+
+find_library(Zstd_LIBRARY NAMES zstd
+  HINTS
+    ${PC_Zstd_LIBDIR}
+    ${PC_Zstd_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Zstd
+  REQUIRED_VARS
+    Zstd_LIBRARY
+    Zstd_INCLUDE_DIR
+)
+
+if(Zstd_FOUND)
+  set(Zstd_LIBRARIES    ${Zstd_LIBRARY})
+  set(Zstd_INCLUDE_DIRS ${Zstd_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(Zstd_INCLUDE_DIRS Zstd_LIBRARIES)
diff --git a/curl/CMake/Macros.cmake b/curl/CMake/Macros.cmake
new file mode 100644
index 0000000..d57dd6a
--- /dev/null
+++ b/curl/CMake/Macros.cmake
@@ -0,0 +1,120 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+#File defines convenience macros for available feature testing
+
+# This macro checks if the symbol exists in the library and if it
+# does, it prepends library to the list.  It is intended to be called
+# multiple times with a sequence of possibly dependent libraries in
+# order of least-to-most-dependent.  Some libraries depend on others
+# to link correctly.
+macro(check_library_exists_concat LIBRARY SYMBOL VARIABLE)
+  check_library_exists("${LIBRARY};${CURL_LIBS}" ${SYMBOL} "${CMAKE_LIBRARY_PATH}"
+    ${VARIABLE})
+  if(${VARIABLE})
+    set(CURL_LIBS ${LIBRARY} ${CURL_LIBS})
+  endif()
+endmacro()
+
+# Check if header file exists and add it to the list.
+# This macro is intended to be called multiple times with a sequence of
+# possibly dependent header files.  Some headers depend on others to be
+# compiled correctly.
+macro(check_include_file_concat FILE VARIABLE)
+  check_include_files("${CURL_INCLUDES};${FILE}" ${VARIABLE})
+  if(${VARIABLE})
+    set(CURL_INCLUDES ${CURL_INCLUDES} ${FILE})
+    set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${VARIABLE}")
+  endif()
+endmacro()
+
+# For other curl specific tests, use this macro.
+macro(curl_internal_test CURL_TEST)
+  if(NOT DEFINED "${CURL_TEST}")
+    set(MACRO_CHECK_FUNCTION_DEFINITIONS
+      "-D${CURL_TEST} ${CURL_TEST_DEFINES} ${CMAKE_REQUIRED_FLAGS}")
+    if(CMAKE_REQUIRED_LIBRARIES)
+      set(CURL_TEST_ADD_LIBRARIES
+        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+    endif()
+
+    message(STATUS "Performing Curl Test ${CURL_TEST}")
+    try_compile(${CURL_TEST}
+      ${CMAKE_BINARY_DIR}
+      ${CMAKE_CURRENT_SOURCE_DIR}/CMake/CurlTests.c
+      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
+      "${CURL_TEST_ADD_LIBRARIES}"
+      OUTPUT_VARIABLE OUTPUT)
+    if(${CURL_TEST})
+      set(${CURL_TEST} 1 CACHE INTERNAL "Curl test ${FUNCTION}")
+      message(STATUS "Performing Curl Test ${CURL_TEST} - Success")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+        "Performing Curl Test ${CURL_TEST} passed with the following output:\n"
+        "${OUTPUT}\n")
+    else()
+      message(STATUS "Performing Curl Test ${CURL_TEST} - Failed")
+      set(${CURL_TEST} "" CACHE INTERNAL "Curl test ${FUNCTION}")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+        "Performing Curl Test ${CURL_TEST} failed with the following output:\n"
+        "${OUTPUT}\n")
+    endif()
+  endif()
+endmacro()
+
+macro(curl_nroff_check)
+  find_program(NROFF NAMES gnroff nroff)
+  if(NROFF)
+    # Need a way to write to stdin, this will do
+    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt" "test")
+    # Tests for a valid nroff option to generate a manpage
+    foreach(_MANOPT "-man" "-mandoc")
+      execute_process(COMMAND "${NROFF}" ${_MANOPT}
+        OUTPUT_VARIABLE NROFF_MANOPT_OUTPUT
+        INPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt"
+        ERROR_QUIET)
+      # Save the option if it was valid
+      if(NROFF_MANOPT_OUTPUT)
+        message("Found *nroff option: -- ${_MANOPT}")
+        set(NROFF_MANOPT ${_MANOPT})
+        set(NROFF_USEFUL ON)
+        break()
+      endif()
+    endforeach()
+    # No need for the temporary file
+    file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt")
+    if(NOT NROFF_USEFUL)
+      message(WARNING "Found no *nroff option to get plaintext from man pages")
+    endif()
+  else()
+    message(WARNING "Found no *nroff program")
+  endif()
+endmacro()
+
+macro(optional_dependency DEPENDENCY)
+  set(CURL_${DEPENDENCY} AUTO CACHE STRING "Build curl with ${DEPENDENCY} support (AUTO, ON or OFF)")
+  set_property(CACHE CURL_${DEPENDENCY} PROPERTY STRINGS AUTO ON OFF)
+
+  if(CURL_${DEPENDENCY} STREQUAL AUTO)
+    find_package(${DEPENDENCY})
+  elseif(CURL_${DEPENDENCY})
+    find_package(${DEPENDENCY} REQUIRED)
+  endif()
+endmacro()
diff --git a/curl/CMake/OtherTests.cmake b/curl/CMake/OtherTests.cmake
new file mode 100644
index 0000000..d710eb8
--- /dev/null
+++ b/curl/CMake/OtherTests.cmake
@@ -0,0 +1,286 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+include(CheckCSourceCompiles)
+# The begin of the sources (macros and includes)
+set(_source_epilogue "#undef inline")
+
+macro(add_header_include check header)
+  if(${check})
+    set(_source_epilogue "${_source_epilogue}\n#include <${header}>")
+  endif()
+endmacro()
+
+set(signature_call_conv)
+if(HAVE_WINDOWS_H)
+  add_header_include(HAVE_WINSOCK2_H "winsock2.h")
+  add_header_include(HAVE_WINDOWS_H "windows.h")
+  set(_source_epilogue
+      "${_source_epilogue}\n#ifndef WIN32_LEAN_AND_MEAN\n#define WIN32_LEAN_AND_MEAN\n#endif")
+  set(signature_call_conv "PASCAL")
+  if(HAVE_LIBWS2_32)
+    set(CMAKE_REQUIRED_LIBRARIES ws2_32)
+  endif()
+else()
+  add_header_include(HAVE_SYS_TYPES_H "sys/types.h")
+  add_header_include(HAVE_SYS_SOCKET_H "sys/socket.h")
+endif()
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
+
+function(curl_cv_func_recv_run_test recv_retv recv_arg1 recv_arg2 recv_arg3 recv_arg4)
+  unset(curl_cv_func_recv_test CACHE)
+  check_c_source_compiles("
+    ${_source_epilogue}
+    #ifdef WINSOCK_API_LINKAGE
+    WINSOCK_API_LINKAGE
+    #endif
+    extern ${recv_retv} ${signature_call_conv}
+    recv(${recv_arg1}, ${recv_arg2}, ${recv_arg3}, ${recv_arg4});
+    int main(void) {
+      ${recv_arg1} s=0;
+      ${recv_arg2} buf=0;
+      ${recv_arg3} len=0;
+      ${recv_arg4} flags=0;
+      ${recv_retv} res = recv(s, buf, len, flags);
+      (void) res;
+      return 0;
+    }"
+    curl_cv_func_recv_test)
+  message(STATUS
+    "Tested: ${recv_retv} recv(${recv_arg1}, ${recv_arg2}, ${recv_arg3}, ${recv_arg4})")
+  if(curl_cv_func_recv_test)
+    set(curl_cv_func_recv_args
+      "${recv_arg1},${recv_arg2},${recv_arg3},${recv_arg4},${recv_retv}" PARENT_SCOPE)
+    set(RECV_TYPE_ARG1 "${recv_arg1}" PARENT_SCOPE)
+    set(RECV_TYPE_ARG2 "${recv_arg2}" PARENT_SCOPE)
+    set(RECV_TYPE_ARG3 "${recv_arg3}" PARENT_SCOPE)
+    set(RECV_TYPE_ARG4 "${recv_arg4}" PARENT_SCOPE)
+    set(RECV_TYPE_RETV "${recv_retv}" PARENT_SCOPE)
+    set(HAVE_RECV 1 PARENT_SCOPE)
+    set(curl_cv_func_recv_done 1 PARENT_SCOPE)
+  endif()
+endfunction()
+
+check_c_source_compiles("${_source_epilogue}
+int main(void) {
+    recv(0, 0, 0, 0);
+    return 0;
+}" curl_cv_recv)
+if(curl_cv_recv)
+  if(NOT DEFINED curl_cv_func_recv_args OR curl_cv_func_recv_args STREQUAL "unknown")
+    if(APPLE)
+      curl_cv_func_recv_run_test("ssize_t" "int" "void *" "size_t" "int")
+    endif()
+    foreach(recv_retv "int" "ssize_t" )
+      foreach(recv_arg1 "SOCKET" "int" )
+        foreach(recv_arg2 "char *" "void *" )
+          foreach(recv_arg3 "int" "size_t" "socklen_t" "unsigned int")
+            foreach(recv_arg4 "int" "unsigned int")
+              if(NOT curl_cv_func_recv_done)
+                curl_cv_func_recv_run_test(${recv_retv} ${recv_arg1} ${recv_arg2} ${recv_arg3} ${recv_arg4})
+              endif()
+            endforeach()
+          endforeach()
+        endforeach()
+      endforeach()
+    endforeach()
+  else()
+    string(REGEX REPLACE "^([^,]*),[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG1 "${curl_cv_func_recv_args}")
+    string(REGEX REPLACE "^[^,]*,([^,]*),[^,]*,[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG2 "${curl_cv_func_recv_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,([^,]*),[^,]*,[^,]*$" "\\1" RECV_TYPE_ARG3 "${curl_cv_func_recv_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,([^,]*),[^,]*$" "\\1" RECV_TYPE_ARG4 "${curl_cv_func_recv_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,([^,]*)$" "\\1" RECV_TYPE_RETV "${curl_cv_func_recv_args}")
+  endif()
+
+  if(curl_cv_func_recv_args STREQUAL "unknown")
+    message(FATAL_ERROR "Cannot find proper types to use for recv args")
+  endif()
+else()
+  message(FATAL_ERROR "Unable to link function recv")
+endif()
+set(curl_cv_func_recv_args "${curl_cv_func_recv_args}" CACHE INTERNAL "Arguments for recv")
+set(HAVE_RECV 1)
+
+function(curl_cv_func_send_run_test send_retv send_arg1 send_arg2 send_arg3 send_arg4)
+  unset(curl_cv_func_send_test CACHE)
+  check_c_source_compiles("
+    ${_source_epilogue}
+    #ifdef WINSOCK_API_LINKAGE
+    WINSOCK_API_LINKAGE
+    #endif
+    extern ${send_retv} ${signature_call_conv}
+    send(${send_arg1}, ${send_arg2}, ${send_arg3}, ${send_arg4});
+    int main(void) {
+      ${send_arg1} s=0;
+      ${send_arg2} buf=0;
+      ${send_arg3} len=0;
+      ${send_arg4} flags=0;
+      ${send_retv} res = send(s, buf, len, flags);
+      (void) res;
+      return 0;
+    }"
+    curl_cv_func_send_test)
+  message(STATUS
+    "Tested: ${send_retv} send(${send_arg1}, ${send_arg2}, ${send_arg3}, ${send_arg4})")
+  if(curl_cv_func_send_test)
+    string(REGEX REPLACE "(const) .*" "\\1" send_qual_arg2 "${send_arg2}")
+    string(REGEX REPLACE "const (.*)" "\\1" send_arg2 "${send_arg2}")
+    set(curl_cv_func_send_args
+      "${send_arg1},${send_arg2},${send_arg3},${send_arg4},${send_retv},${send_qual_arg2}" PARENT_SCOPE)
+    set(SEND_TYPE_ARG1 "${send_arg1}" PARENT_SCOPE)
+    set(SEND_TYPE_ARG2 "${send_arg2}" PARENT_SCOPE)
+    set(SEND_TYPE_ARG3 "${send_arg3}" PARENT_SCOPE)
+    set(SEND_TYPE_ARG4 "${send_arg4}" PARENT_SCOPE)
+    set(SEND_TYPE_RETV "${send_retv}" PARENT_SCOPE)
+    set(HAVE_SEND 1 PARENT_SCOPE)
+    set(curl_cv_func_send_done 1 PARENT_SCOPE)
+  endif()
+endfunction()
+
+check_c_source_compiles("${_source_epilogue}
+int main(void) {
+    send(0, 0, 0, 0);
+    return 0;
+}" curl_cv_send)
+if(curl_cv_send)
+  if(NOT DEFINED curl_cv_func_send_args OR "${curl_cv_func_send_args}" STREQUAL "unknown")
+    if(APPLE)
+      curl_cv_func_send_run_test("ssize_t" "int" "const void *" "size_t" "int")
+    endif()
+    foreach(send_retv "int" "ssize_t" )
+      foreach(send_arg1 "SOCKET" "int" "ssize_t" )
+        foreach(send_arg2 "const char *" "const void *" "void *" "char *")
+          foreach(send_arg3 "int" "size_t" "socklen_t" "unsigned int")
+            foreach(send_arg4 "int" "unsigned int")
+              if(NOT curl_cv_func_send_done)
+                curl_cv_func_send_run_test("${send_retv}" "${send_arg1}" "${send_arg2}" "${send_arg3}" "${send_arg4}")
+              endif()
+            endforeach()
+          endforeach()
+        endforeach()
+      endforeach()
+    endforeach()
+  else()
+    string(REGEX REPLACE "^([^,]*),[^,]*,[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG1 "${curl_cv_func_send_args}")
+    string(REGEX REPLACE "^[^,]*,([^,]*),[^,]*,[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG2 "${curl_cv_func_send_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,([^,]*),[^,]*,[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG3 "${curl_cv_func_send_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,([^,]*),[^,]*,[^,]*$" "\\1" SEND_TYPE_ARG4 "${curl_cv_func_send_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,([^,]*),[^,]*$" "\\1" SEND_TYPE_RETV "${curl_cv_func_send_args}")
+    string(REGEX REPLACE "^[^,]*,[^,]*,[^,]*,[^,]*,[^,]*,([^,]*)$" "\\1" SEND_QUAL_ARG2 "${curl_cv_func_send_args}")
+  endif()
+
+  if("${curl_cv_func_send_args}" STREQUAL "unknown")
+    message(FATAL_ERROR "Cannot find proper types to use for send args")
+  endif()
+  set(SEND_QUAL_ARG2 "const")
+else()
+  message(FATAL_ERROR "Unable to link function send")
+endif()
+set(curl_cv_func_send_args "${curl_cv_func_send_args}" CACHE INTERNAL "Arguments for send")
+set(HAVE_SEND 1)
+
+check_c_source_compiles("${_source_epilogue}
+  int main(void) {
+    int flag = MSG_NOSIGNAL;
+    (void)flag;
+    return 0;
+  }" HAVE_MSG_NOSIGNAL)
+
+if(NOT HAVE_WINDOWS_H)
+  add_header_include(HAVE_SYS_TIME_H "sys/time.h")
+  add_header_include(TIME_WITH_SYS_TIME "time.h")
+  add_header_include(HAVE_TIME_H "time.h")
+endif()
+check_c_source_compiles("${_source_epilogue}
+int main(void) {
+  struct timeval ts;
+  ts.tv_sec  = 0;
+  ts.tv_usec = 0;
+  (void)ts;
+  return 0;
+}" HAVE_STRUCT_TIMEVAL)
+
+if(HAVE_WINDOWS_H)
+  set(CMAKE_EXTRA_INCLUDE_FILES winsock2.h)
+else()
+  set(CMAKE_EXTRA_INCLUDE_FILES)
+  if(HAVE_SYS_SOCKET_H)
+    set(CMAKE_EXTRA_INCLUDE_FILES sys/socket.h)
+  endif()
+endif()
+
+check_type_size("struct sockaddr_storage" SIZEOF_STRUCT_SOCKADDR_STORAGE)
+if(HAVE_SIZEOF_STRUCT_SOCKADDR_STORAGE)
+  set(HAVE_STRUCT_SOCKADDR_STORAGE 1)
+endif()
+
+unset(CMAKE_TRY_COMPILE_TARGET_TYPE)
+
+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+  if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "iOS")
+  # only try this on non-apple platforms
+
+  # if not cross-compilation...
+  include(CheckCSourceRuns)
+  set(CMAKE_REQUIRED_FLAGS "")
+  if(HAVE_SYS_POLL_H)
+    set(CMAKE_REQUIRED_FLAGS "-DHAVE_SYS_POLL_H")
+  elseif(HAVE_POLL_H)
+    set(CMAKE_REQUIRED_FLAGS "-DHAVE_POLL_H")
+  endif()
+  check_c_source_runs("
+    #include 
+    #include 
+
+    #ifdef HAVE_SYS_POLL_H
+    #  include 
+    #elif  HAVE_POLL_H
+    #  include 
+    #endif
+
+    int main(void)
+    {
+        if(0 != poll(0, 0, 10)) {
+          return 1; /* fail */
+        }
+        else {
+          /* detect the 10.12 poll() breakage */
+          struct timeval before, after;
+          int rc;
+          size_t us;
+
+          gettimeofday(&before, NULL);
+          rc = poll(NULL, 0, 500);
+          gettimeofday(&after, NULL);
+
+          us = (after.tv_sec - before.tv_sec) * 1000000 +
+            (after.tv_usec - before.tv_usec);
+
+          if(us < 400000) {
+            return 1;
+          }
+        }
+        return 0;
+    }" HAVE_POLL_FINE)
+  endif()
+endif()
+
diff --git a/curl/CMake/Platforms/WindowsCache.cmake b/curl/CMake/Platforms/WindowsCache.cmake
new file mode 100644
index 0000000..fb803f8
--- /dev/null
+++ b/curl/CMake/Platforms/WindowsCache.cmake
@@ -0,0 +1,127 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2021, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+if(NOT UNIX)
+  if(WIN32)
+    set(HAVE_LIBDL 0)
+    set(HAVE_LIBUCB 0)
+    set(HAVE_LIBSOCKET 0)
+    set(NOT_NEED_LIBNSL 0)
+    set(HAVE_LIBNSL 0)
+    set(HAVE_GETHOSTNAME 1)
+    set(HAVE_LIBZ 0)
+
+    set(HAVE_DLOPEN 0)
+
+    set(HAVE_ALLOCA_H 0)
+    set(HAVE_ARPA_INET_H 0)
+    set(HAVE_DLFCN_H 0)
+    set(HAVE_FCNTL_H 1)
+    set(HAVE_INTTYPES_H 0)
+    set(HAVE_IO_H 1)
+    set(HAVE_MALLOC_H 1)
+    set(HAVE_MEMORY_H 1)
+    set(HAVE_NETDB_H 0)
+    set(HAVE_NETINET_IF_ETHER_H 0)
+    set(HAVE_NETINET_IN_H 0)
+    set(HAVE_NET_IF_H 0)
+    set(HAVE_PROCESS_H 1)
+    set(HAVE_PWD_H 0)
+    set(HAVE_SETJMP_H 1)
+    set(HAVE_SIGNAL_H 1)
+    set(HAVE_SOCKIO_H 0)
+    set(HAVE_STDINT_H 0)
+    set(HAVE_STDLIB_H 1)
+    set(HAVE_STRINGS_H 0)
+    set(HAVE_STRING_H 1)
+    set(HAVE_SYS_PARAM_H 0)
+    set(HAVE_SYS_POLL_H 0)
+    set(HAVE_SYS_SELECT_H 0)
+    set(HAVE_SYS_SOCKET_H 0)
+    set(HAVE_SYS_SOCKIO_H 0)
+    set(HAVE_SYS_STAT_H 1)
+    set(HAVE_SYS_TIME_H 0)
+    set(HAVE_SYS_TYPES_H 1)
+    set(HAVE_SYS_UTIME_H 1)
+    set(HAVE_TERMIOS_H 0)
+    set(HAVE_TERMIO_H 0)
+    set(HAVE_TIME_H 1)
+    set(HAVE_UNISTD_H 0)
+    set(HAVE_UTIME_H 0)
+    set(HAVE_X509_H 0)
+    set(HAVE_ZLIB_H 0)
+
+    set(HAVE_SIZEOF_LONG_DOUBLE 1)
+    set(SIZEOF_LONG_DOUBLE 8)
+
+    set(HAVE_SOCKET 1)
+    set(HAVE_POLL 0)
+    set(HAVE_SELECT 1)
+    set(HAVE_STRDUP 1)
+    set(HAVE_STRSTR 1)
+    set(HAVE_STRTOK_R 0)
+    set(HAVE_STRFTIME 1)
+    set(HAVE_UNAME 0)
+    set(HAVE_STRCASECMP 0)
+    set(HAVE_STRICMP 1)
+    set(HAVE_STRCMPI 1)
+    set(HAVE_GETTIMEOFDAY 0)
+    set(HAVE_INET_ADDR 1)
+    set(HAVE_CLOSESOCKET 1)
+    set(HAVE_SETVBUF 0)
+    set(HAVE_SIGSETJMP 0)
+    set(HAVE_GETPASS_R 0)
+    set(HAVE_STRLCAT 0)
+    set(HAVE_GETPWUID 0)
+    set(HAVE_GETEUID 0)
+    set(HAVE_UTIME 1)
+    set(HAVE_RAND_EGD 0)
+    set(HAVE_RAND_SCREEN 0)
+    set(HAVE_RAND_STATUS 0)
+    set(HAVE_GMTIME_R 0)
+    set(HAVE_LOCALTIME_R 0)
+    set(HAVE_GETHOSTBYNAME_R 0)
+    set(HAVE_SIGNAL_FUNC 1)
+    set(HAVE_SIGNAL_MACRO 0)
+
+    set(HAVE_GETHOSTBYNAME_R_3 0)
+    set(HAVE_GETHOSTBYNAME_R_3_REENTRANT 0)
+    set(HAVE_GETHOSTBYNAME_R_5 0)
+    set(HAVE_GETHOSTBYNAME_R_5_REENTRANT 0)
+    set(HAVE_GETHOSTBYNAME_R_6 0)
+    set(HAVE_GETHOSTBYNAME_R_6_REENTRANT 0)
+
+    set(TIME_WITH_SYS_TIME 0)
+    set(HAVE_O_NONBLOCK 0)
+    set(HAVE_IN_ADDR_T 0)
+    if(ENABLE_IPV6)
+      set(HAVE_GETADDRINFO 1)
+    else()
+      set(HAVE_GETADDRINFO 0)
+    endif()
+    set(STDC_HEADERS 1)
+
+    set(HAVE_SIGACTION 0)
+    set(HAVE_MACRO_SIGSETJMP 0)
+  else()
+    message("This file should be included on Windows platform only")
+  endif()
+endif()
diff --git a/curl/CMake/Utilities.cmake b/curl/CMake/Utilities.cmake
new file mode 100644
index 0000000..8f9b861
--- /dev/null
+++ b/curl/CMake/Utilities.cmake
@@ -0,0 +1,33 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# File containing various utilities
+
+# Returns a list of arguments that evaluate to true
+function(count_true output_count_var)
+  set(lst_len 0)
+  foreach(option_var IN LISTS ARGN)
+    if(${option_var})
+      math(EXPR lst_len "${lst_len} + 1")
+    endif()
+  endforeach()
+  set(${output_count_var} ${lst_len} PARENT_SCOPE)
+endfunction()
diff --git a/curl/CMake/cmake_uninstall.cmake.in b/curl/CMake/cmake_uninstall.cmake.in
new file mode 100644
index 0000000..e96c143
--- /dev/null
+++ b/curl/CMake/cmake_uninstall.cmake.in
@@ -0,0 +1,47 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+if(NOT EXISTS "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+  message(FATAL_ERROR "Cannot find install manifest: @CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt")
+endif()
+
+if(NOT DEFINED CMAKE_INSTALL_PREFIX)
+  set(CMAKE_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
+endif()
+message(${CMAKE_INSTALL_PREFIX})
+
+file(READ "@CMAKE_CURRENT_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach(file ${files})
+  message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+  if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+    exec_program(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    if(NOT "${rm_retval}" STREQUAL 0)
+      message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+    endif()
+  else()
+    message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+  endif()
+endforeach()
diff --git a/curl/CMake/curl-config.cmake.in b/curl/CMake/curl-config.cmake.in
new file mode 100644
index 0000000..957148e
--- /dev/null
+++ b/curl/CMake/curl-config.cmake.in
@@ -0,0 +1,33 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+if(@USE_OPENSSL@)
+  find_dependency(OpenSSL @OPENSSL_VERSION_MAJOR@)
+endif()
+if(@USE_ZLIB@)
+  find_dependency(ZLIB @ZLIB_VERSION_MAJOR@)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/@TARGETS_EXPORT_NAME@.cmake")
+check_required_components("@PROJECT_NAME@")
diff --git a/curl/CMakeLists.txt b/curl/CMakeLists.txt
new file mode 100644
index 0000000..6957f61
--- /dev/null
+++ b/curl/CMakeLists.txt
@@ -0,0 +1,1617 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# curl/libcurl CMake script
+# by Tetetest and Sukender (Benoit Neil)
+
+# TODO:
+# The output .so file lacks the soname number which we currently have within the lib/Makefile.am file
+# Add full (4 or 5 libs) SSL support
+# Add INSTALL target (EXTRA_DIST variables in Makefile.am may be moved to Makefile.inc so that CMake/CPack is aware of what's to include).
+# Check on all possible platforms
+# Test with as many configurations possible (With or without any option)
+# Create scripts that help keeping the CMake build system up to date (to reduce maintenance). According to Tetetest:
+#  - lists of headers that 'configure' checks for;
+#  - curl-specific tests (the ones that are in m4/curl-*.m4 files);
+#  - (most obvious thing:) curl version numbers.
+# Add documentation subproject
+#
+# To check:
+# (From Daniel Stenberg) The cmake build selected to run gcc with -fPIC on my box while the plain configure script did not.
+# (From Daniel Stenberg) The gcc command line use neither -g nor any -O options. As a developer, I also treasure our configure scripts's --enable-debug option that sets a long range of "picky" compiler options.
+cmake_minimum_required(VERSION 3.2...3.16 FATAL_ERROR)
+
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
+include(Utilities)
+include(Macros)
+include(CMakeDependentOption)
+include(CheckCCompilerFlag)
+
+project(CURL C)
+
+file(STRINGS ${CURL_SOURCE_DIR}/include/curl/curlver.h CURL_VERSION_H_CONTENTS REGEX "#define LIBCURL_VERSION( |_NUM )")
+string(REGEX MATCH "#define LIBCURL_VERSION \"[^\"]*"
+  CURL_VERSION ${CURL_VERSION_H_CONTENTS})
+string(REGEX REPLACE "[^\"]+\"" "" CURL_VERSION ${CURL_VERSION})
+string(REGEX MATCH "#define LIBCURL_VERSION_NUM 0x[0-9a-fA-F]+"
+  CURL_VERSION_NUM ${CURL_VERSION_H_CONTENTS})
+string(REGEX REPLACE "[^0]+0x" "" CURL_VERSION_NUM ${CURL_VERSION_NUM})
+
+
+# Setup package meta-data
+# SET(PACKAGE "curl")
+message(STATUS "curl version=[${CURL_VERSION}]")
+# SET(PACKAGE_TARNAME "curl")
+# SET(PACKAGE_NAME "curl")
+# SET(PACKAGE_VERSION "-")
+# SET(PACKAGE_STRING "curl-")
+# SET(PACKAGE_BUGREPORT "a suitable curl mailing list => https://curl.se/mail/")
+set(OPERATING_SYSTEM "${CMAKE_SYSTEM_NAME}")
+set(OS "\"${CMAKE_SYSTEM_NAME}\"")
+
+include_directories(${CURL_SOURCE_DIR}/include)
+
+option(CURL_WERROR "Turn compiler warnings into errors" OFF)
+option(PICKY_COMPILER "Enable picky compiler options" ON)
+option(BUILD_CURL_EXE "Set to ON to build curl executable." ON)
+option(BUILD_SHARED_LIBS "Build shared libraries" ON)
+option(ENABLE_ARES "Set to ON to enable c-ares support" OFF)
+if(WIN32)
+  option(CURL_STATIC_CRT "Set to ON to build libcurl with static CRT on Windows (/MT)." OFF)
+  option(ENABLE_INET_PTON "Set to OFF to prevent usage of inet_pton when building against modern SDKs while still requiring compatibility with older Windows versions, such as Windows XP, Windows Server 2003 etc." ON)
+  option(ENABLE_UNICODE "Set to ON to use the Unicode version of the Windows API functions" OFF)
+  set(CURL_TARGET_WINDOWS_VERSION "" CACHE STRING "Minimum target Windows version as hex string")
+  if(CURL_TARGET_WINDOWS_VERSION)
+    add_definitions(-D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION})
+    set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_WIN32_WINNT=${CURL_TARGET_WINDOWS_VERSION}")
+  elseif(ENABLE_INET_PTON)
+    # _WIN32_WINNT_VISTA (0x0600)
+    add_definitions(-D_WIN32_WINNT=0x0600)
+    set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_WIN32_WINNT=0x0600")
+  else()
+    # _WIN32_WINNT_WINXP (0x0501)
+    add_definitions(-D_WIN32_WINNT=0x0501)
+    set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_WIN32_WINNT=0x0501")
+  endif()
+  if(ENABLE_UNICODE)
+    add_definitions(-DUNICODE -D_UNICODE)
+    if(MINGW)
+      add_compile_options(-municode)
+    endif()
+  endif()
+endif()
+option(CURL_LTO "Turn on compiler Link Time Optimizations" OFF)
+
+cmake_dependent_option(ENABLE_THREADED_RESOLVER "Set to ON to enable threaded DNS lookup"
+        ON "NOT ENABLE_ARES"
+        OFF)
+
+option(ENABLE_DEBUG "Set to ON to enable curl debug features" OFF)
+option(ENABLE_CURLDEBUG "Set to ON to build with TrackMemory feature enabled" OFF)
+
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
+  if(PICKY_COMPILER)
+    foreach(_CCOPT -pedantic -Wall -W -Wpointer-arith -Wwrite-strings -Wunused -Wshadow -Winline -Wnested-externs -Wmissing-declarations -Wmissing-prototypes -Wfloat-equal -Wsign-compare -Wundef -Wendif-labels -Wstrict-prototypes -Wdeclaration-after-statement -Wstrict-aliasing=3 -Wcast-align -Wtype-limits -Wold-style-declaration -Wmissing-parameter-type -Wempty-body -Wclobbered -Wignored-qualifiers -Wconversion -Wvla -Wdouble-promotion -Wenum-conversion -Warith-conversion)
+      # surprisingly, CHECK_C_COMPILER_FLAG needs a new variable to store each new
+      # test result in.
+      string(MAKE_C_IDENTIFIER "OPT${_CCOPT}" _optvarname)
+      check_c_compiler_flag(${_CCOPT} ${_optvarname})
+      if(${_optvarname})
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_CCOPT}")
+      endif()
+    endforeach()
+    foreach(_CCOPT long-long multichar format-nonliteral sign-conversion system-headers pedantic-ms-format)
+      # GCC only warns about unknown -Wno- options if there are also other diagnostic messages,
+      # so test for the positive form instead
+      string(MAKE_C_IDENTIFIER "OPT${_CCOPT}" _optvarname)
+      check_c_compiler_flag("-W${_CCOPT}" ${_optvarname})
+      if(${_optvarname})
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-${_CCOPT}")
+      endif()
+    endforeach()
+  endif()
+endif()
+
+if(ENABLE_DEBUG)
+  # DEBUGBUILD will be defined only for Debug builds
+  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$:DEBUGBUILD>)
+  set(ENABLE_CURLDEBUG ON)
+endif()
+
+if(ENABLE_CURLDEBUG)
+  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS CURLDEBUG)
+endif()
+
+# For debug libs and exes, add "-d" postfix
+if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
+  set(CMAKE_DEBUG_POSTFIX "-d")
+endif()
+
+# initialize CURL_LIBS
+set(CURL_LIBS "")
+
+if(ENABLE_ARES)
+  set(USE_ARES 1)
+  find_package(CARES REQUIRED)
+  list(APPEND CURL_LIBS ${CARES_LIBRARY})
+endif()
+
+include(CurlSymbolHiding)
+
+option(CURL_ENABLE_EXPORT_TARGET "to enable cmake export target" ON)
+mark_as_advanced(CURL_ENABLE_EXPORT_TARGET)
+
+option(CURL_DISABLE_ALTSVC "disables alt-svc support" OFF)
+mark_as_advanced(CURL_DISABLE_ALTSVC)
+option(CURL_DISABLE_COOKIES "disables cookies support" OFF)
+mark_as_advanced(CURL_DISABLE_COOKIES)
+option(CURL_DISABLE_CRYPTO_AUTH "disables cryptographic authentication" OFF)
+mark_as_advanced(CURL_DISABLE_CRYPTO_AUTH)
+option(CURL_DISABLE_DICT "disables DICT" OFF)
+mark_as_advanced(CURL_DISABLE_DICT)
+option(CURL_DISABLE_DOH "disables DNS-over-HTTPS" OFF)
+mark_as_advanced(CURL_DISABLE_DOH)
+option(CURL_DISABLE_FILE "disables FILE" OFF)
+mark_as_advanced(CURL_DISABLE_FILE)
+option(CURL_DISABLE_FTP "disables FTP" OFF)
+mark_as_advanced(CURL_DISABLE_FTP)
+option(CURL_DISABLE_GETOPTIONS "disables curl_easy_options API for existing options to curl_easy_setopt" OFF)
+mark_as_advanced(CURL_DISABLE_GETOPTIONS)
+option(CURL_DISABLE_GOPHER "disables Gopher" OFF)
+mark_as_advanced(CURL_DISABLE_GOPHER)
+option(CURL_DISABLE_HSTS "disables HSTS support" OFF)
+mark_as_advanced(CURL_DISABLE_HSTS)
+option(CURL_DISABLE_HTTP "disables HTTP" OFF)
+mark_as_advanced(CURL_DISABLE_HTTP)
+option(CURL_DISABLE_HTTP_AUTH "disables all HTTP authentication methods" OFF)
+mark_as_advanced(CURL_DISABLE_HTTP_AUTH)
+option(CURL_DISABLE_IMAP "disables IMAP" OFF)
+mark_as_advanced(CURL_DISABLE_IMAP)
+option(CURL_DISABLE_LDAP "disables LDAP" OFF)
+mark_as_advanced(CURL_DISABLE_LDAP)
+option(CURL_DISABLE_LDAPS "disables LDAPS" OFF)
+mark_as_advanced(CURL_DISABLE_LDAPS)
+option(CURL_DISABLE_LIBCURL_OPTION "disables --libcurl option from the curl tool" OFF)
+mark_as_advanced(CURL_DISABLE_LIBCURL_OPTION)
+option(CURL_DISABLE_MIME "disables MIME support" OFF)
+mark_as_advanced(CURL_DISABLE_MIME)
+option(CURL_DISABLE_MQTT "disables MQTT" OFF)
+mark_as_advanced(CURL_DISABLE_MQTT)
+option(CURL_DISABLE_NETRC "disables netrc parser" OFF)
+mark_as_advanced(CURL_DISABLE_NETRC)
+option(CURL_DISABLE_NTLM "disables NTLM support" OFF)
+mark_as_advanced(CURL_DISABLE_NTLM)
+option(CURL_DISABLE_PARSEDATE "disables date parsing" OFF)
+mark_as_advanced(CURL_DISABLE_PARSEDATE)
+option(CURL_DISABLE_POP3 "disables POP3" OFF)
+mark_as_advanced(CURL_DISABLE_POP3)
+option(CURL_DISABLE_PROGRESS_METER "disables built-in progress meter" OFF)
+mark_as_advanced(CURL_DISABLE_PROGRESS_METER)
+option(CURL_DISABLE_PROXY "disables proxy support" OFF)
+mark_as_advanced(CURL_DISABLE_PROXY)
+option(CURL_DISABLE_RTSP "disables RTSP" OFF)
+mark_as_advanced(CURL_DISABLE_RTSP)
+option(CURL_DISABLE_SHUFFLE_DNS "disables shuffle DNS feature" OFF)
+mark_as_advanced(CURL_DISABLE_SHUFFLE_DNS)
+option(CURL_DISABLE_SMB "disables SMB" OFF)
+mark_as_advanced(CURL_DISABLE_SMB)
+option(CURL_DISABLE_SMTP "disables SMTP" OFF)
+mark_as_advanced(CURL_DISABLE_SMTP)
+option(CURL_DISABLE_SOCKETPAIR "disables use of socketpair for curl_multi_poll" OFF)
+mark_as_advanced(CURL_DISABLE_SOCKETPAIR)
+option(CURL_DISABLE_TELNET "disables Telnet" OFF)
+mark_as_advanced(CURL_DISABLE_TELNET)
+option(CURL_DISABLE_TFTP "disables TFTP" OFF)
+mark_as_advanced(CURL_DISABLE_TFTP)
+option(CURL_DISABLE_VERBOSE_STRINGS "disables verbose strings" OFF)
+mark_as_advanced(CURL_DISABLE_VERBOSE_STRINGS)
+
+# Corresponds to HTTP_ONLY in lib/curl_setup.h
+option(HTTP_ONLY "disables all protocols except HTTP (This overrides all CURL_DISABLE_* options)" OFF)
+mark_as_advanced(HTTP_ONLY)
+
+if(HTTP_ONLY)
+  set(CURL_DISABLE_DICT ON)
+  set(CURL_DISABLE_FILE ON)
+  set(CURL_DISABLE_FTP ON)
+  set(CURL_DISABLE_GOPHER ON)
+  set(CURL_DISABLE_IMAP ON)
+  set(CURL_DISABLE_LDAP ON)
+  set(CURL_DISABLE_LDAPS ON)
+  set(CURL_DISABLE_MQTT ON)
+  set(CURL_DISABLE_POP3 ON)
+  set(CURL_DISABLE_RTSP ON)
+  set(CURL_DISABLE_SMB ON)
+  set(CURL_DISABLE_SMTP ON)
+  set(CURL_DISABLE_TELNET ON)
+  set(CURL_DISABLE_TFTP ON)
+endif()
+
+option(ENABLE_IPV6 "Define if you want to enable IPv6 support" ON)
+mark_as_advanced(ENABLE_IPV6)
+if(ENABLE_IPV6 AND NOT WIN32)
+  include(CheckStructHasMember)
+  check_struct_has_member("struct sockaddr_in6" sin6_addr "netinet/in.h"
+                          HAVE_SOCKADDR_IN6_SIN6_ADDR)
+  check_struct_has_member("struct sockaddr_in6" sin6_scope_id "netinet/in.h"
+                          HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
+  if(NOT HAVE_SOCKADDR_IN6_SIN6_ADDR)
+    message(WARNING "struct sockaddr_in6 not available, disabling IPv6 support")
+    # Force the feature off as this name is used as guard macro...
+    set(ENABLE_IPV6 OFF
+        CACHE BOOL "Define if you want to enable IPv6 support" FORCE)
+  endif()
+
+  if(CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND NOT ENABLE_ARES)
+    set(use_core_foundation ON)
+
+    find_library(SYSTEMCONFIGURATION_FRAMEWORK "SystemConfiguration")
+    if(NOT SYSTEMCONFIGURATION_FRAMEWORK)
+      message(FATAL_ERROR "SystemConfiguration framework not found")
+    endif()
+
+    list(APPEND CURL_LIBS "-framework SystemConfiguration")
+  endif()
+endif()
+
+if(USE_MANUAL)
+    #nroff is currently only used when USE_MANUAL is set, so we can prevent the warning of no *NROFF if USE_MANUAL is OFF (or not defined), by not even looking for NROFF..
+    curl_nroff_check()
+endif()
+find_package(Perl)
+
+cmake_dependent_option(ENABLE_MANUAL "to provide the built-in manual"
+    ON "NROFF_USEFUL;PERL_FOUND"
+    OFF)
+
+if(ENABLE_MANUAL)
+  set(USE_MANUAL ON)
+endif()
+
+if(CURL_STATIC_CRT)
+  set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$:Debug>")
+  set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
+  set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
+endif()
+
+# Disable warnings on Borland to avoid changing 3rd party code.
+if(BORLAND)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
+endif()
+
+# If we are on AIX, do the _ALL_SOURCE magic
+if(${CMAKE_SYSTEM_NAME} MATCHES AIX)
+  set(_ALL_SOURCE 1)
+endif()
+
+# Include all the necessary files for macros
+include(CMakePushCheckState)
+include(CheckFunctionExists)
+include(CheckIncludeFile)
+include(CheckIncludeFiles)
+include(CheckLibraryExists)
+include(CheckSymbolExists)
+include(CheckTypeSize)
+include(CheckCSourceCompiles)
+
+# On windows preload settings
+if(WIN32)
+  set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_WINSOCKAPI_=")
+  include(${CMAKE_CURRENT_SOURCE_DIR}/CMake/Platforms/WindowsCache.cmake)
+endif()
+
+if(ENABLE_THREADED_RESOLVER)
+  find_package(Threads REQUIRED)
+  if(WIN32)
+    set(USE_THREADS_WIN32 ON)
+  else()
+    set(USE_THREADS_POSIX ${CMAKE_USE_PTHREADS_INIT})
+    set(HAVE_PTHREAD_H ${CMAKE_USE_PTHREADS_INIT})
+  endif()
+  set(CURL_LIBS ${CURL_LIBS} ${CMAKE_THREAD_LIBS_INIT})
+endif()
+
+# Check for all needed libraries
+check_library_exists_concat("${CMAKE_DL_LIBS}" dlopen HAVE_LIBDL)
+check_library_exists_concat("socket" connect      HAVE_LIBSOCKET)
+check_library_exists("c" gethostbyname "" NOT_NEED_LIBNSL)
+
+if(NOT NOT_NEED_LIBNSL)
+  check_library_exists_concat("nsl"    gethostbyname  HAVE_LIBNSL)
+endif()
+
+check_function_exists(gethostname HAVE_GETHOSTNAME)
+
+if(WIN32)
+  check_library_exists_concat("ws2_32" getch        HAVE_LIBWS2_32)
+  check_library_exists_concat("winmm"  getch        HAVE_LIBWINMM)
+endif()
+
+# This check below for use of deprecated symbols is only temporary and is to
+# be removed again after a year's service. Remove after November 25, 2022.
+set(CURL_RECONFIG_REQUIRED 0)
+foreach(_LIB GSSAPI OPENLDAP LIBSSH LIBSSH2 BEARSSL MBEDTLS NSS OPENSSL
+        SCHANNEL SECTRANSP WOLFSSL)
+  if(CMAKE_USE_${_LIB})
+    set(CURL_RECONFIG_REQUIRED 1)
+    message(SEND_ERROR "The option CMAKE_USE_${_LIB} was renamed to CURL_USE_${_LIB}.")
+  endif()
+endforeach()
+if(CMAKE_USE_WINSSL)
+  set(CURL_RECONFIG_REQUIRED 1)
+  message(SEND_ERROR "The option CMAKE_USE_WINSSL was renamed to CURL_USE_SCHANNEL.")
+endif()
+if(CURL_RECONFIG_REQUIRED)
+  message(FATAL_ERROR "Reconfig required")
+endif()
+
+# check SSL libraries
+# TODO support GnuTLS
+option(CURL_ENABLE_SSL "Enable SSL support" ON)
+
+if(APPLE)
+  cmake_dependent_option(CURL_USE_SECTRANSP "enable Apple OS native SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+endif()
+if(WIN32)
+  cmake_dependent_option(CURL_USE_SCHANNEL "enable Windows native SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+  cmake_dependent_option(CURL_WINDOWS_SSPI "Use windows libraries to allow NTLM authentication without openssl" ON
+    CURL_USE_SCHANNEL OFF)
+endif()
+cmake_dependent_option(CURL_USE_MBEDTLS "Enable mbedTLS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+cmake_dependent_option(CURL_USE_BEARSSL "Enable BearSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+cmake_dependent_option(CURL_USE_NSS "Enable NSS for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+cmake_dependent_option(CURL_USE_WOLFSSL "enable wolfSSL for SSL/TLS" OFF CURL_ENABLE_SSL OFF)
+
+set(openssl_default ON)
+if(WIN32 OR CURL_USE_SECTRANSP OR CURL_USE_SCHANNEL OR CURL_USE_MBEDTLS OR CURL_USE_NSS OR CURL_USE_WOLFSSL)
+  set(openssl_default OFF)
+endif()
+cmake_dependent_option(CURL_USE_OPENSSL "Use OpenSSL code. Experimental" ${openssl_default} CURL_ENABLE_SSL OFF)
+option(CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG "Disable automatic loading of OpenSSL configuration" OFF)
+
+count_true(enabled_ssl_options_count
+  CURL_USE_SCHANNEL
+  CURL_USE_SECTRANSP
+  CURL_USE_OPENSSL
+  CURL_USE_MBEDTLS
+  CURL_USE_BEARSSL
+  CURL_USE_NSS
+  CURL_USE_WOLFSSL
+)
+if(enabled_ssl_options_count GREATER "1")
+  set(CURL_WITH_MULTI_SSL ON)
+endif()
+
+if(CURL_USE_SCHANNEL)
+  set(SSL_ENABLED ON)
+  set(USE_SCHANNEL ON) # Windows native SSL/TLS support
+  set(USE_WINDOWS_SSPI ON) # CURL_USE_SCHANNEL implies CURL_WINDOWS_SSPI
+endif()
+if(CURL_WINDOWS_SSPI)
+  set(USE_WINDOWS_SSPI ON)
+  set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -DSECURITY_WIN32")
+endif()
+
+if(CURL_USE_SECTRANSP)
+  set(use_core_foundation ON)
+
+  find_library(SECURITY_FRAMEWORK "Security")
+  if(NOT SECURITY_FRAMEWORK)
+     message(FATAL_ERROR "Security framework not found")
+  endif()
+
+  set(SSL_ENABLED ON)
+  set(USE_SECTRANSP ON)
+  list(APPEND CURL_LIBS "-framework Security")
+endif()
+
+if(use_core_foundation)
+  find_library(COREFOUNDATION_FRAMEWORK "CoreFoundation")
+  if(NOT COREFOUNDATION_FRAMEWORK)
+      message(FATAL_ERROR "CoreFoundation framework not found")
+  endif()
+
+  list(APPEND CURL_LIBS "-framework CoreFoundation")
+endif()
+
+if(CURL_USE_OPENSSL)
+  find_package(OpenSSL REQUIRED)
+  set(SSL_ENABLED ON)
+  set(USE_OPENSSL ON)
+
+  # Depend on OpenSSL via imported targets if supported by the running
+  # version of CMake.  This allows our dependents to get our dependencies
+  # transitively.
+  if(NOT CMAKE_VERSION VERSION_LESS 3.4)
+    list(APPEND CURL_LIBS OpenSSL::SSL OpenSSL::Crypto)
+  else()
+    list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
+    include_directories(${OPENSSL_INCLUDE_DIR})
+  endif()
+
+  set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
+  check_include_file("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
+  check_include_file("openssl/err.h"    HAVE_OPENSSL_ERR_H)
+  check_include_file("openssl/pem.h"    HAVE_OPENSSL_PEM_H)
+  check_include_file("openssl/rsa.h"    HAVE_OPENSSL_RSA_H)
+  check_include_file("openssl/ssl.h"    HAVE_OPENSSL_SSL_H)
+  check_include_file("openssl/x509.h"   HAVE_OPENSSL_X509_H)
+  check_include_file("openssl/rand.h"   HAVE_OPENSSL_RAND_H)
+  check_symbol_exists(RAND_status "${CURL_INCLUDES}" HAVE_RAND_STATUS)
+  check_symbol_exists(RAND_screen "${CURL_INCLUDES}" HAVE_RAND_SCREEN)
+  check_symbol_exists(RAND_egd    "${CURL_INCLUDES}" HAVE_RAND_EGD)
+
+  add_definitions(-DOPENSSL_SUPPRESS_DEPRECATED)
+endif()
+
+if(CURL_USE_MBEDTLS)
+  find_package(MbedTLS REQUIRED)
+  set(SSL_ENABLED ON)
+  set(USE_MBEDTLS ON)
+  list(APPEND CURL_LIBS ${MBEDTLS_LIBRARIES})
+  include_directories(${MBEDTLS_INCLUDE_DIRS})
+endif()
+
+if(CURL_USE_BEARSSL)
+  find_package(BearSSL REQUIRED)
+  set(SSL_ENABLED ON)
+  set(USE_BEARSSL ON)
+  list(APPEND CURL_LIBS ${BEARSSL_LIBRARY})
+  include_directories(${BEARSSL_INCLUDE_DIRS})
+endif()
+
+if(CURL_USE_WOLFSSL)
+  find_package(WolfSSL REQUIRED)
+  set(SSL_ENABLED ON)
+  set(USE_WOLFSSL ON)
+  list(APPEND CURL_LIBS ${WolfSSL_LIBRARIES})
+  include_directories(${WolfSSL_INCLUDE_DIRS})
+endif()
+
+if(CURL_USE_NSS)
+  find_package(NSS REQUIRED)
+  include_directories(${NSS_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${NSS_LIBRARIES})
+  set(SSL_ENABLED ON)
+  set(USE_NSS ON)
+  cmake_push_check_state()
+  set(CMAKE_REQUIRED_INCLUDES ${NSS_INCLUDE_DIRS})
+  set(CMAKE_REQUIRED_LIBRARIES ${NSS_LIBRARIES})
+  check_symbol_exists(PK11_CreateManagedGenericObject "pk11pub.h" HAVE_PK11_CREATEMANAGEDGENERICOBJECT)
+  cmake_pop_check_state()
+endif()
+
+option(USE_NGHTTP2 "Use Nghttp2 library" OFF)
+if(USE_NGHTTP2)
+  find_package(NGHTTP2 REQUIRED)
+  include_directories(${NGHTTP2_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
+endif()
+
+function(CheckQuicSupportInOpenSSL)
+  # Be sure that the OpenSSL library actually supports QUIC.
+  cmake_push_check_state()
+  set(CMAKE_REQUIRED_INCLUDES   "${OPENSSL_INCLUDE_DIR}")
+  set(CMAKE_REQUIRED_LIBRARIES  "${OPENSSL_LIBRARIES}")
+  check_symbol_exists(SSL_CTX_set_quic_method "openssl/ssl.h" HAVE_SSL_CTX_SET_QUIC_METHOD)
+  if(NOT HAVE_SSL_CTX_SET_QUIC_METHOD)
+    message(FATAL_ERROR "QUIC support is missing in OpenSSL/boringssl. Try setting -DOPENSSL_ROOT_DIR")
+  endif()
+  cmake_pop_check_state()
+endfunction()
+
+option(USE_NGTCP2 "Use ngtcp2 and nghttp3 libraries for HTTP/3 support" OFF)
+if(USE_NGTCP2)
+  if(USE_OPENSSL)
+    find_package(NGTCP2 REQUIRED OpenSSL)
+    CheckQuicSupportInOpenSSL()
+  elseif(USE_GNUTLS)
+    # TODO add GnuTLS support as vtls library.
+    find_package(NGTCP2 REQUIRED GnuTLS)
+  else()
+    message(FATAL_ERROR "ngtcp2 requires OpenSSL or GnuTLS")
+  endif()
+  set(USE_NGTCP2 ON)
+  include_directories(${NGTCP2_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${NGTCP2_LIBRARIES})
+
+  find_package(NGHTTP3 REQUIRED)
+  set(USE_NGHTTP3 ON)
+  include_directories(${NGHTTP3_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${NGHTTP3_LIBRARIES})
+endif()
+
+option(USE_QUICHE "Use quiche library for HTTP/3 support" OFF)
+if(USE_QUICHE)
+  if(USE_NGTCP2)
+    message(FATAL_ERROR "Only one HTTP/3 backend can be selected!")
+  endif()
+  find_package(QUICHE REQUIRED)
+  CheckQuicSupportInOpenSSL()
+  set(USE_QUICHE ON)
+  include_directories(${QUICHE_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${QUICHE_LIBRARIES})
+  cmake_push_check_state()
+  set(CMAKE_REQUIRED_INCLUDES   "${QUICHE_INCLUDE_DIRS}")
+  set(CMAKE_REQUIRED_LIBRARIES  "${QUICHE_LIBRARIES}")
+  check_symbol_exists(quiche_conn_set_qlog_fd "quiche.h" HAVE_QUICHE_CONN_SET_QLOG_FD)
+  cmake_pop_check_state()
+endif()
+
+option(USE_MSH3 "Use msquic library for HTTP/3 support" OFF)
+if(USE_MSH3)
+  if(USE_NGTCP2 OR USE_QUICHE)
+    message(FATAL_ERROR "Only one HTTP/3 backend can be selected!")
+  endif()
+  set(USE_MSH3 ON)
+  include_directories(${MSH3_INCLUDE_DIRS})
+  list(APPEND CURL_LIBS ${MSH3_LIBRARIES})
+endif()
+
+if(NOT CURL_DISABLE_LDAP)
+  if(WIN32)
+    option(USE_WIN32_LDAP "Use Windows LDAP implementation" ON)
+    if(USE_WIN32_LDAP)
+      check_library_exists_concat("wldap32" cldap_open HAVE_WLDAP32)
+      if(NOT HAVE_WLDAP32)
+        set(USE_WIN32_LDAP OFF)
+      endif()
+    endif()
+  endif()
+
+  option(CURL_USE_OPENLDAP "Use OpenLDAP code." OFF)
+  mark_as_advanced(CURL_USE_OPENLDAP)
+  set(CMAKE_LDAP_LIB "ldap" CACHE STRING "Name or full path to ldap library")
+  set(CMAKE_LBER_LIB "lber" CACHE STRING "Name or full path to lber library")
+
+  if(CURL_USE_OPENLDAP AND USE_WIN32_LDAP)
+    message(FATAL_ERROR "Cannot use USE_WIN32_LDAP and CURL_USE_OPENLDAP at the same time")
+  endif()
+
+  # Now that we know, we're not using windows LDAP...
+  if(USE_WIN32_LDAP)
+    check_include_file_concat("winldap.h" HAVE_WINLDAP_H)
+    check_include_file_concat("winber.h"  HAVE_WINBER_H)
+  else()
+    # Check for LDAP
+    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_LIBRARIES})
+    check_library_exists_concat(${CMAKE_LDAP_LIB} ldap_init HAVE_LIBLDAP)
+    check_library_exists_concat(${CMAKE_LBER_LIB} ber_init HAVE_LIBLBER)
+
+    set(CMAKE_REQUIRED_INCLUDES_BAK ${CMAKE_REQUIRED_INCLUDES})
+    set(CMAKE_LDAP_INCLUDE_DIR "" CACHE STRING "Path to LDAP include directory")
+    if(CMAKE_LDAP_INCLUDE_DIR)
+      list(APPEND CMAKE_REQUIRED_INCLUDES ${CMAKE_LDAP_INCLUDE_DIR})
+    endif()
+    check_include_file_concat("ldap.h"           HAVE_LDAP_H)
+    check_include_file_concat("lber.h"           HAVE_LBER_H)
+
+    if(NOT HAVE_LDAP_H)
+      message(STATUS "LDAP_H not found CURL_DISABLE_LDAP set ON")
+      set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
+      set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_BAK}) #LDAP includes won't be used
+    elseif(NOT HAVE_LIBLDAP)
+      message(STATUS "LDAP library '${CMAKE_LDAP_LIB}' not found CURL_DISABLE_LDAP set ON")
+      set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
+      set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_BAK}) #LDAP includes won't be used
+    else()
+      if(CURL_USE_OPENLDAP)
+        set(USE_OPENLDAP ON)
+      endif()
+      if(CMAKE_LDAP_INCLUDE_DIR)
+        include_directories(${CMAKE_LDAP_INCLUDE_DIR})
+      endif()
+      set(NEED_LBER_H ON)
+      set(_HEADER_LIST)
+      if(HAVE_WINDOWS_H)
+        list(APPEND _HEADER_LIST "windows.h")
+      endif()
+      if(HAVE_SYS_TYPES_H)
+        list(APPEND _HEADER_LIST "sys/types.h")
+      endif()
+      list(APPEND _HEADER_LIST "ldap.h")
+
+      set(_SRC_STRING "")
+      foreach(_HEADER ${_HEADER_LIST})
+        set(_INCLUDE_STRING "${_INCLUDE_STRING}#include <${_HEADER}>\n")
+      endforeach()
+
+      set(_SRC_STRING
+        "
+        ${_INCLUDE_STRING}
+        int main(int argc, char ** argv)
+        {
+          BerValue *bvp = NULL;
+          BerElement *bep = ber_init(bvp);
+          ber_free(bep, 1);
+          return 0;
+        }"
+      )
+      set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -DLDAP_DEPRECATED=1")
+      list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LDAP_LIB})
+      if(HAVE_LIBLBER)
+        list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LBER_LIB})
+      endif()
+      check_c_source_compiles("${_SRC_STRING}" NOT_NEED_LBER_H)
+      unset(CMAKE_REQUIRED_LIBRARIES)
+
+      if(NOT_NEED_LBER_H)
+        set(NEED_LBER_H OFF)
+      else()
+        set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -DNEED_LBER_H")
+      endif()
+    endif()
+  endif()
+endif()
+
+# No ldap, no ldaps.
+if(CURL_DISABLE_LDAP)
+  if(NOT CURL_DISABLE_LDAPS)
+    message(STATUS "LDAP needs to be enabled to support LDAPS")
+    set(CURL_DISABLE_LDAPS ON CACHE BOOL "" FORCE)
+  endif()
+endif()
+
+if(NOT CURL_DISABLE_LDAPS)
+  check_include_file_concat("ldap_ssl.h" HAVE_LDAP_SSL_H)
+  check_include_file_concat("ldapssl.h"  HAVE_LDAPSSL_H)
+endif()
+
+# Check for idn
+option(USE_LIBIDN2 "Use libidn2 for IDN support" ON)
+set(HAVE_LIBIDN2 OFF)
+if(USE_LIBIDN2)
+  check_library_exists_concat("idn2" idn2_lookup_ul HAVE_LIBIDN2)
+endif()
+
+if(WIN32)
+  option(USE_WIN32_IDN "Use WinIDN for IDN support" OFF)
+  if(USE_WIN32_IDN)
+    list(APPEND CURL_LIBS "Normaliz")
+    set(WANT_IDN_PROTOTYPES ON)
+  endif()
+endif()
+
+# Check for symbol dlopen (same as HAVE_LIBDL)
+check_library_exists("${CURL_LIBS}" dlopen "" HAVE_DLOPEN)
+
+set(HAVE_LIBZ OFF)
+set(HAVE_ZLIB_H OFF)
+set(USE_ZLIB OFF)
+optional_dependency(ZLIB)
+if(ZLIB_FOUND)
+  set(HAVE_ZLIB_H ON)
+  set(HAVE_LIBZ ON)
+  set(USE_ZLIB ON)
+
+  # Depend on ZLIB via imported targets if supported by the running
+  # version of CMake.  This allows our dependents to get our dependencies
+  # transitively.
+  if(NOT CMAKE_VERSION VERSION_LESS 3.4)
+    list(APPEND CURL_LIBS ZLIB::ZLIB)
+  else()
+    list(APPEND CURL_LIBS ${ZLIB_LIBRARIES})
+    include_directories(${ZLIB_INCLUDE_DIRS})
+  endif()
+  list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS})
+endif()
+
+option(CURL_BROTLI "Set to ON to enable building curl with brotli support." OFF)
+set(HAVE_BROTLI OFF)
+if(CURL_BROTLI)
+  find_package(Brotli QUIET)
+  if(BROTLI_FOUND)
+    set(HAVE_BROTLI ON)
+    list(APPEND CURL_LIBS ${BROTLI_LIBRARIES})
+    include_directories(${BROTLI_INCLUDE_DIRS})
+    list(APPEND CMAKE_REQUIRED_INCLUDES ${BROTLI_INCLUDE_DIRS})
+  endif()
+endif()
+
+option(CURL_ZSTD "Set to ON to enable building curl with zstd support." OFF)
+set(HAVE_ZSTD OFF)
+if(CURL_ZSTD)
+  find_package(Zstd REQUIRED)
+  cmake_push_check_state()
+  set(CMAKE_REQUIRED_INCLUDES ${Zstd_INCLUDE_DIRS})
+  set(CMAKE_REQUIRED_LIBRARIES ${Zstd_LIBRARIES})
+  check_symbol_exists(ZSTD_createDStream "zstd.h" HAVE_ZSTD_CREATEDSTREAM)
+  cmake_pop_check_state()
+  if(Zstd_FOUND AND HAVE_ZSTD_CREATEDSTREAM)
+    set(HAVE_ZSTD ON)
+    list(APPEND CURL_LIBS ${Zstd_LIBRARIES})
+    include_directories(${Zstd_INCLUDE_DIRS})
+  endif()
+endif()
+
+#libSSH2
+option(CURL_USE_LIBSSH2 "Use libSSH2" ON)
+mark_as_advanced(CURL_USE_LIBSSH2)
+set(USE_LIBSSH2 OFF)
+set(HAVE_LIBSSH2 OFF)
+set(HAVE_LIBSSH2_H OFF)
+
+if(CURL_USE_LIBSSH2)
+  find_package(LibSSH2)
+  if(LIBSSH2_FOUND)
+    list(APPEND CURL_LIBS ${LIBSSH2_LIBRARY})
+    set(CMAKE_REQUIRED_LIBRARIES ${LIBSSH2_LIBRARY})
+    list(APPEND CMAKE_REQUIRED_INCLUDES "${LIBSSH2_INCLUDE_DIR}")
+    include_directories("${LIBSSH2_INCLUDE_DIR}")
+    set(HAVE_LIBSSH2 ON)
+    set(USE_LIBSSH2 ON)
+
+    # find_package has already found the headers
+    set(HAVE_LIBSSH2_H ON)
+    set(CURL_INCLUDES ${CURL_INCLUDES} "${LIBSSH2_INCLUDE_DIR}/libssh2.h")
+    set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -DHAVE_LIBSSH2_H")
+    unset(CMAKE_REQUIRED_LIBRARIES)
+  endif()
+endif()
+
+# libssh
+option(CURL_USE_LIBSSH "Use libSSH" OFF)
+mark_as_advanced(CURL_USE_LIBSSH)
+if(NOT HAVE_LIBSSH2 AND CURL_USE_LIBSSH)
+  find_package(libssh CONFIG)
+  if(libssh_FOUND)
+    message(STATUS "Found libssh ${libssh_VERSION}")
+    # Use imported target for include and library paths.
+    list(APPEND CURL_LIBS ssh)
+    set(USE_LIBSSH ON)
+    set(HAVE_LIBSSH_LIBSSH_H 1)
+  endif()
+endif()
+
+option(CURL_USE_GSSAPI "Use GSSAPI implementation (right now only Heimdal is supported with CMake build)" OFF)
+mark_as_advanced(CURL_USE_GSSAPI)
+
+if(CURL_USE_GSSAPI)
+  find_package(GSS)
+
+  set(HAVE_GSSAPI ${GSS_FOUND})
+  if(GSS_FOUND)
+
+    message(STATUS "Found ${GSS_FLAVOUR} GSSAPI version: \"${GSS_VERSION}\"")
+
+    list(APPEND CMAKE_REQUIRED_INCLUDES ${GSS_INCLUDE_DIR})
+    check_include_file_concat("gssapi/gssapi.h"  HAVE_GSSAPI_GSSAPI_H)
+    check_include_file_concat("gssapi/gssapi_generic.h" HAVE_GSSAPI_GSSAPI_GENERIC_H)
+    check_include_file_concat("gssapi/gssapi_krb5.h" HAVE_GSSAPI_GSSAPI_KRB5_H)
+
+    if(GSS_FLAVOUR STREQUAL "Heimdal")
+      set(HAVE_GSSHEIMDAL ON)
+    else() # MIT
+      set(HAVE_GSSMIT ON)
+      set(_INCLUDE_LIST "")
+      if(HAVE_GSSAPI_GSSAPI_H)
+        list(APPEND _INCLUDE_LIST "gssapi/gssapi.h")
+      endif()
+      if(HAVE_GSSAPI_GSSAPI_GENERIC_H)
+        list(APPEND _INCLUDE_LIST "gssapi/gssapi_generic.h")
+      endif()
+      if(HAVE_GSSAPI_GSSAPI_KRB5_H)
+        list(APPEND _INCLUDE_LIST "gssapi/gssapi_krb5.h")
+      endif()
+
+      string(REPLACE ";" " " _COMPILER_FLAGS_STR "${GSS_COMPILER_FLAGS}")
+      string(REPLACE ";" " " _LINKER_FLAGS_STR "${GSS_LINKER_FLAGS}")
+
+      foreach(_dir ${GSS_LINK_DIRECTORIES})
+        set(_LINKER_FLAGS_STR "${_LINKER_FLAGS_STR} -L\"${_dir}\"")
+      endforeach()
+
+      set(CMAKE_REQUIRED_FLAGS "${_COMPILER_FLAGS_STR} ${_LINKER_FLAGS_STR}")
+      set(CMAKE_REQUIRED_LIBRARIES ${GSS_LIBRARIES})
+      check_symbol_exists("GSS_C_NT_HOSTBASED_SERVICE" ${_INCLUDE_LIST} HAVE_GSS_C_NT_HOSTBASED_SERVICE)
+      if(NOT HAVE_GSS_C_NT_HOSTBASED_SERVICE)
+        set(HAVE_OLD_GSSMIT ON)
+      endif()
+      unset(CMAKE_REQUIRED_LIBRARIES)
+
+    endif()
+
+    include_directories(${GSS_INCLUDE_DIR})
+    link_directories(${GSS_LINK_DIRECTORIES})
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GSS_COMPILER_FLAGS}")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${GSS_LINKER_FLAGS}")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GSS_LINKER_FLAGS}")
+    set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} ${GSS_LINKER_FLAGS}")
+    list(APPEND CURL_LIBS ${GSS_LIBRARIES})
+
+  else()
+    message(WARNING "GSSAPI support has been requested but no supporting libraries found. Skipping.")
+  endif()
+endif()
+
+option(ENABLE_UNIX_SOCKETS "Define if you want Unix domain sockets support" ON)
+if(ENABLE_UNIX_SOCKETS)
+  include(CheckStructHasMember)
+  if(WIN32)
+    set(USE_UNIX_SOCKETS ON)
+  else()
+    check_struct_has_member("struct sockaddr_un" sun_path "sys/un.h" USE_UNIX_SOCKETS)
+  endif()
+else()
+  unset(USE_UNIX_SOCKETS CACHE)
+endif()
+
+
+#
+# CA handling
+#
+set(CURL_CA_BUNDLE "auto" CACHE STRING
+    "Path to the CA bundle. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
+set(CURL_CA_FALLBACK OFF CACHE BOOL
+    "Set ON to use built-in CA store of TLS backend. Defaults to OFF")
+set(CURL_CA_PATH "auto" CACHE STRING
+    "Location of default CA path. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
+
+if("${CURL_CA_BUNDLE}" STREQUAL "")
+  message(FATAL_ERROR "Invalid value of CURL_CA_BUNDLE. Use 'none', 'auto' or file path.")
+elseif("${CURL_CA_BUNDLE}" STREQUAL "none")
+  unset(CURL_CA_BUNDLE CACHE)
+elseif("${CURL_CA_BUNDLE}" STREQUAL "auto")
+  unset(CURL_CA_BUNDLE CACHE)
+  set(CURL_CA_BUNDLE_AUTODETECT TRUE)
+else()
+  set(CURL_CA_BUNDLE_SET TRUE)
+endif()
+
+if("${CURL_CA_PATH}" STREQUAL "")
+  message(FATAL_ERROR "Invalid value of CURL_CA_PATH. Use 'none', 'auto' or directory path.")
+elseif("${CURL_CA_PATH}" STREQUAL "none")
+  unset(CURL_CA_PATH CACHE)
+elseif("${CURL_CA_PATH}" STREQUAL "auto")
+  unset(CURL_CA_PATH CACHE)
+  if(NOT USE_NSS)
+    set(CURL_CA_PATH_AUTODETECT TRUE)
+  endif()
+else()
+  set(CURL_CA_PATH_SET TRUE)
+endif()
+
+if(CURL_CA_BUNDLE_SET AND CURL_CA_PATH_AUTODETECT)
+  # Skip autodetection of unset CA path because CA bundle is set explicitly
+elseif(CURL_CA_PATH_SET AND CURL_CA_BUNDLE_AUTODETECT)
+  # Skip autodetection of unset CA bundle because CA path is set explicitly
+elseif(CURL_CA_PATH_AUTODETECT OR CURL_CA_BUNDLE_AUTODETECT)
+  # first try autodetecting a CA bundle, then a CA path
+
+  if(CURL_CA_BUNDLE_AUTODETECT)
+    set(SEARCH_CA_BUNDLE_PATHS
+        /etc/ssl/certs/ca-certificates.crt
+        /etc/pki/tls/certs/ca-bundle.crt
+        /usr/share/ssl/certs/ca-bundle.crt
+        /usr/local/share/certs/ca-root-nss.crt
+        /etc/ssl/cert.pem)
+
+    foreach(SEARCH_CA_BUNDLE_PATH ${SEARCH_CA_BUNDLE_PATHS})
+      if(EXISTS "${SEARCH_CA_BUNDLE_PATH}")
+        message(STATUS "Found CA bundle: ${SEARCH_CA_BUNDLE_PATH}")
+        set(CURL_CA_BUNDLE "${SEARCH_CA_BUNDLE_PATH}" CACHE STRING
+            "Path to the CA bundle. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
+        set(CURL_CA_BUNDLE_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
+        break()
+      endif()
+    endforeach()
+  endif()
+
+  if(CURL_CA_PATH_AUTODETECT AND (NOT CURL_CA_PATH_SET))
+    if(EXISTS "/etc/ssl/certs")
+      set(CURL_CA_PATH "/etc/ssl/certs" CACHE STRING
+          "Location of default CA path. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
+      set(CURL_CA_PATH_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
+    endif()
+  endif()
+endif()
+
+if(CURL_CA_PATH_SET AND NOT USE_OPENSSL AND NOT USE_MBEDTLS)
+  message(STATUS
+          "CA path only supported by OpenSSL, GnuTLS or mbed TLS. "
+          "Set CURL_CA_PATH=none or enable one of those TLS backends.")
+endif()
+
+# Check for header files
+if(NOT UNIX)
+  check_include_file_concat("windows.h"      HAVE_WINDOWS_H)
+  check_include_file_concat("ws2tcpip.h"     HAVE_WS2TCPIP_H)
+  check_include_file_concat("winsock2.h"     HAVE_WINSOCK2_H)
+  check_include_file_concat("wincrypt.h"     HAVE_WINCRYPT_H)
+endif()
+
+check_include_file_concat("stdio.h"          HAVE_STDIO_H)
+check_include_file_concat("inttypes.h"       HAVE_INTTYPES_H)
+check_include_file_concat("sys/filio.h"      HAVE_SYS_FILIO_H)
+check_include_file_concat("sys/ioctl.h"      HAVE_SYS_IOCTL_H)
+check_include_file_concat("sys/param.h"      HAVE_SYS_PARAM_H)
+check_include_file_concat("sys/poll.h"       HAVE_SYS_POLL_H)
+check_include_file_concat("sys/resource.h"   HAVE_SYS_RESOURCE_H)
+check_include_file_concat("sys/select.h"     HAVE_SYS_SELECT_H)
+check_include_file_concat("sys/socket.h"     HAVE_SYS_SOCKET_H)
+check_include_file_concat("sys/sockio.h"     HAVE_SYS_SOCKIO_H)
+check_include_file_concat("sys/stat.h"       HAVE_SYS_STAT_H)
+check_include_file_concat("sys/time.h"       HAVE_SYS_TIME_H)
+check_include_file_concat("sys/types.h"      HAVE_SYS_TYPES_H)
+check_include_file_concat("sys/uio.h"        HAVE_SYS_UIO_H)
+check_include_file_concat("sys/un.h"         HAVE_SYS_UN_H)
+check_include_file_concat("sys/utime.h"      HAVE_SYS_UTIME_H)
+check_include_file_concat("sys/xattr.h"      HAVE_SYS_XATTR_H)
+check_include_file_concat("alloca.h"         HAVE_ALLOCA_H)
+check_include_file_concat("arpa/inet.h"      HAVE_ARPA_INET_H)
+check_include_file_concat("arpa/tftp.h"      HAVE_ARPA_TFTP_H)
+check_include_file_concat("assert.h"         HAVE_ASSERT_H)
+check_include_file_concat("errno.h"          HAVE_ERRNO_H)
+check_include_file_concat("fcntl.h"          HAVE_FCNTL_H)
+check_include_file_concat("idn2.h"           HAVE_IDN2_H)
+check_include_file_concat("ifaddrs.h"        HAVE_IFADDRS_H)
+check_include_file_concat("io.h"             HAVE_IO_H)
+check_include_file_concat("krb.h"            HAVE_KRB_H)
+check_include_file_concat("libgen.h"         HAVE_LIBGEN_H)
+check_include_file_concat("locale.h"         HAVE_LOCALE_H)
+check_include_file_concat("net/if.h"         HAVE_NET_IF_H)
+check_include_file_concat("netdb.h"          HAVE_NETDB_H)
+check_include_file_concat("netinet/in.h"     HAVE_NETINET_IN_H)
+check_include_file_concat("netinet/tcp.h"    HAVE_NETINET_TCP_H)
+check_include_file("linux/tcp.h"      HAVE_LINUX_TCP_H)
+
+check_include_file_concat("pem.h"            HAVE_PEM_H)
+check_include_file_concat("poll.h"           HAVE_POLL_H)
+check_include_file_concat("pwd.h"            HAVE_PWD_H)
+check_include_file_concat("setjmp.h"         HAVE_SETJMP_H)
+check_include_file_concat("signal.h"         HAVE_SIGNAL_H)
+check_include_file_concat("ssl.h"            HAVE_SSL_H)
+check_include_file_concat("stdbool.h"        HAVE_STDBOOL_H)
+check_include_file_concat("stdint.h"         HAVE_STDINT_H)
+check_include_file_concat("stdio.h"          HAVE_STDIO_H)
+check_include_file_concat("stdlib.h"         HAVE_STDLIB_H)
+check_include_file_concat("string.h"         HAVE_STRING_H)
+check_include_file_concat("strings.h"        HAVE_STRINGS_H)
+check_include_file_concat("stropts.h"        HAVE_STROPTS_H)
+check_include_file_concat("termio.h"         HAVE_TERMIO_H)
+check_include_file_concat("termios.h"        HAVE_TERMIOS_H)
+check_include_file_concat("time.h"           HAVE_TIME_H)
+check_include_file_concat("unistd.h"         HAVE_UNISTD_H)
+check_include_file_concat("utime.h"          HAVE_UTIME_H)
+check_include_file_concat("x509.h"           HAVE_X509_H)
+
+check_include_file_concat("process.h"        HAVE_PROCESS_H)
+check_include_file_concat("stddef.h"         HAVE_STDDEF_H)
+check_include_file_concat("dlfcn.h"          HAVE_DLFCN_H)
+check_include_file_concat("malloc.h"         HAVE_MALLOC_H)
+check_include_file_concat("memory.h"         HAVE_MEMORY_H)
+check_include_file_concat("netinet/if_ether.h" HAVE_NETINET_IF_ETHER_H)
+check_include_file_concat("stdint.h"        HAVE_STDINT_H)
+check_include_file_concat("sockio.h"        HAVE_SOCKIO_H)
+check_include_file_concat("sys/utsname.h"   HAVE_SYS_UTSNAME_H)
+
+check_type_size(size_t  SIZEOF_SIZE_T)
+check_type_size(ssize_t  SIZEOF_SSIZE_T)
+check_type_size("long long"  SIZEOF_LONG_LONG)
+check_type_size("long"  SIZEOF_LONG)
+check_type_size("short"  SIZEOF_SHORT)
+check_type_size("int"  SIZEOF_INT)
+check_type_size("__int64"  SIZEOF___INT64)
+check_type_size("long double"  SIZEOF_LONG_DOUBLE)
+check_type_size("time_t"  SIZEOF_TIME_T)
+if(NOT HAVE_SIZEOF_SSIZE_T)
+  if(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
+    set(ssize_t long)
+  endif()
+  if(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
+    set(ssize_t __int64)
+  endif()
+endif()
+# off_t is sized later, after the HAVE_FILE_OFFSET_BITS test
+
+if(HAVE_SIZEOF_LONG_LONG)
+  set(HAVE_LONGLONG 1)
+  set(HAVE_LL 1)
+endif()
+
+find_file(RANDOM_FILE urandom /dev)
+mark_as_advanced(RANDOM_FILE)
+
+# Check for some functions that are used
+if(HAVE_LIBWS2_32)
+  set(CMAKE_REQUIRED_LIBRARIES ws2_32)
+elseif(HAVE_LIBSOCKET)
+  set(CMAKE_REQUIRED_LIBRARIES socket)
+endif()
+
+check_symbol_exists(basename      "${CURL_INCLUDES}" HAVE_BASENAME)
+check_symbol_exists(socket        "${CURL_INCLUDES}" HAVE_SOCKET)
+check_symbol_exists(select        "${CURL_INCLUDES}" HAVE_SELECT)
+check_symbol_exists(poll          "${CURL_INCLUDES}" HAVE_POLL)
+check_symbol_exists(strdup        "${CURL_INCLUDES}" HAVE_STRDUP)
+check_symbol_exists(strstr        "${CURL_INCLUDES}" HAVE_STRSTR)
+check_symbol_exists(strtok_r      "${CURL_INCLUDES}" HAVE_STRTOK_R)
+check_symbol_exists(strftime      "${CURL_INCLUDES}" HAVE_STRFTIME)
+check_symbol_exists(uname         "${CURL_INCLUDES}" HAVE_UNAME)
+check_symbol_exists(strcasecmp    "${CURL_INCLUDES}" HAVE_STRCASECMP)
+check_symbol_exists(stricmp       "${CURL_INCLUDES}" HAVE_STRICMP)
+check_symbol_exists(strcmpi       "${CURL_INCLUDES}" HAVE_STRCMPI)
+check_symbol_exists(strncmpi      "${CURL_INCLUDES}" HAVE_STRNCMPI)
+check_symbol_exists(alarm         "${CURL_INCLUDES}" HAVE_ALARM)
+if(NOT HAVE_STRNCMPI)
+  set(HAVE_STRCMPI)
+endif()
+check_symbol_exists(getppid       "${CURL_INCLUDES}" HAVE_GETPPID)
+check_symbol_exists(utimes        "${CURL_INCLUDES}" HAVE_UTIMES)
+
+check_symbol_exists(gettimeofday  "${CURL_INCLUDES}" HAVE_GETTIMEOFDAY)
+check_symbol_exists(inet_addr     "${CURL_INCLUDES}" HAVE_INET_ADDR)
+check_symbol_exists(closesocket   "${CURL_INCLUDES}" HAVE_CLOSESOCKET)
+check_symbol_exists(sigsetjmp     "${CURL_INCLUDES}" HAVE_SIGSETJMP)
+check_symbol_exists(getpass_r     "${CURL_INCLUDES}" HAVE_GETPASS_R)
+check_symbol_exists(getpwuid      "${CURL_INCLUDES}" HAVE_GETPWUID)
+check_symbol_exists(getpwuid_r    "${CURL_INCLUDES}" HAVE_GETPWUID_R)
+check_symbol_exists(geteuid       "${CURL_INCLUDES}" HAVE_GETEUID)
+check_symbol_exists(usleep        "${CURL_INCLUDES}" HAVE_USLEEP)
+check_symbol_exists(utime         "${CURL_INCLUDES}" HAVE_UTIME)
+check_symbol_exists(gmtime_r      "${CURL_INCLUDES}" HAVE_GMTIME_R)
+check_symbol_exists(localtime_r   "${CURL_INCLUDES}" HAVE_LOCALTIME_R)
+
+check_symbol_exists(gethostbyname   "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME)
+check_symbol_exists(gethostbyname_r "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME_R)
+
+check_symbol_exists(signal        "${CURL_INCLUDES}" HAVE_SIGNAL_FUNC)
+check_symbol_exists(SIGALRM       "${CURL_INCLUDES}" HAVE_SIGNAL_MACRO)
+if(HAVE_SIGNAL_FUNC AND HAVE_SIGNAL_MACRO)
+  set(HAVE_SIGNAL 1)
+endif()
+check_symbol_exists(uname          "${CURL_INCLUDES}" HAVE_UNAME)
+check_symbol_exists(strtoll        "${CURL_INCLUDES}" HAVE_STRTOLL)
+check_symbol_exists(_strtoi64      "${CURL_INCLUDES}" HAVE__STRTOI64)
+check_symbol_exists(strerror_r     "${CURL_INCLUDES}" HAVE_STRERROR_R)
+check_symbol_exists(siginterrupt   "${CURL_INCLUDES}" HAVE_SIGINTERRUPT)
+check_symbol_exists(getaddrinfo    "${CURL_INCLUDES}" HAVE_GETADDRINFO)
+check_symbol_exists(freeaddrinfo   "${CURL_INCLUDES}" HAVE_FREEADDRINFO)
+check_symbol_exists(pipe           "${CURL_INCLUDES}" HAVE_PIPE)
+check_symbol_exists(ftruncate      "${CURL_INCLUDES}" HAVE_FTRUNCATE)
+check_symbol_exists(getprotobyname "${CURL_INCLUDES}" HAVE_GETPROTOBYNAME)
+check_symbol_exists(getpeername    "${CURL_INCLUDES}" HAVE_GETPEERNAME)
+check_symbol_exists(getsockname    "${CURL_INCLUDES}" HAVE_GETSOCKNAME)
+check_symbol_exists(if_nametoindex "${CURL_INCLUDES}" HAVE_IF_NAMETOINDEX)
+check_symbol_exists(getrlimit      "${CURL_INCLUDES}" HAVE_GETRLIMIT)
+check_symbol_exists(setlocale      "${CURL_INCLUDES}" HAVE_SETLOCALE)
+check_symbol_exists(setmode        "${CURL_INCLUDES}" HAVE_SETMODE)
+check_symbol_exists(setrlimit      "${CURL_INCLUDES}" HAVE_SETRLIMIT)
+check_symbol_exists(fcntl          "${CURL_INCLUDES}" HAVE_FCNTL)
+check_symbol_exists(ioctl          "${CURL_INCLUDES}" HAVE_IOCTL)
+check_symbol_exists(setsockopt     "${CURL_INCLUDES}" HAVE_SETSOCKOPT)
+check_function_exists(mach_absolute_time HAVE_MACH_ABSOLUTE_TIME)
+check_symbol_exists(inet_pton      "${CURL_INCLUDES}" HAVE_INET_PTON)
+
+check_symbol_exists(fsetxattr "${CURL_INCLUDES}" HAVE_FSETXATTR)
+if(HAVE_FSETXATTR)
+  foreach(CURL_TEST HAVE_FSETXATTR_5 HAVE_FSETXATTR_6)
+    curl_internal_test(${CURL_TEST})
+  endforeach()
+endif()
+
+set(CMAKE_EXTRA_INCLUDE_FILES   "sys/socket.h")
+check_type_size("sa_family_t"   SIZEOF_SA_FAMILY_T)
+set(HAVE_SA_FAMILY_T            ${HAVE_SIZEOF_SA_FAMILY_T})
+set(CMAKE_EXTRA_INCLUDE_FILES   "")
+
+set(CMAKE_EXTRA_INCLUDE_FILES   "ws2def.h")
+check_type_size("ADDRESS_FAMILY"    SIZEOF_ADDRESS_FAMILY)
+set(HAVE_ADDRESS_FAMILY         ${HAVE_SIZEOF_ADDRESS_FAMILY})
+set(CMAKE_EXTRA_INCLUDE_FILES   "")
+
+# sigaction and sigsetjmp are special. Use special mechanism for
+# detecting those, but only if previous attempt failed.
+if(HAVE_SIGNAL_H)
+  check_symbol_exists(sigaction "signal.h" HAVE_SIGACTION)
+endif()
+
+if(NOT HAVE_SIGSETJMP)
+  if(HAVE_SETJMP_H)
+    check_symbol_exists(sigsetjmp "setjmp.h" HAVE_MACRO_SIGSETJMP)
+    if(HAVE_MACRO_SIGSETJMP)
+      set(HAVE_SIGSETJMP 1)
+    endif()
+  endif()
+endif()
+
+# If there is no stricmp(), do not allow LDAP to parse URLs
+if(NOT HAVE_STRICMP)
+  set(HAVE_LDAP_URL_PARSE 1)
+endif()
+
+# Do curl specific tests
+foreach(CURL_TEST
+    HAVE_FCNTL_O_NONBLOCK
+    HAVE_IOCTLSOCKET
+    HAVE_IOCTLSOCKET_CAMEL
+    HAVE_IOCTLSOCKET_CAMEL_FIONBIO
+    HAVE_IOCTLSOCKET_FIONBIO
+    HAVE_IOCTL_FIONBIO
+    HAVE_IOCTL_SIOCGIFADDR
+    HAVE_SETSOCKOPT_SO_NONBLOCK
+    HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+    TIME_WITH_SYS_TIME
+    HAVE_O_NONBLOCK
+    HAVE_GETHOSTBYNAME_R_3
+    HAVE_GETHOSTBYNAME_R_5
+    HAVE_GETHOSTBYNAME_R_6
+    HAVE_GETHOSTBYNAME_R_3_REENTRANT
+    HAVE_GETHOSTBYNAME_R_5_REENTRANT
+    HAVE_GETHOSTBYNAME_R_6_REENTRANT
+    HAVE_IN_ADDR_T
+    HAVE_BOOL_T
+    STDC_HEADERS
+    HAVE_GETADDRINFO
+    HAVE_FILE_OFFSET_BITS
+    HAVE_VARIADIC_MACROS_C99
+    HAVE_VARIADIC_MACROS_GCC
+    )
+  curl_internal_test(${CURL_TEST})
+endforeach()
+
+if(HAVE_FILE_OFFSET_BITS)
+  set(_FILE_OFFSET_BITS 64)
+  set(CMAKE_REQUIRED_FLAGS "-D_FILE_OFFSET_BITS=64")
+endif()
+check_type_size("off_t"  SIZEOF_OFF_T)
+
+# include this header to get the type
+set(CMAKE_REQUIRED_INCLUDES "${CURL_SOURCE_DIR}/include")
+set(CMAKE_EXTRA_INCLUDE_FILES "curl/system.h")
+check_type_size("curl_off_t"  SIZEOF_CURL_OFF_T)
+set(CMAKE_EXTRA_INCLUDE_FILES "")
+
+set(CMAKE_REQUIRED_FLAGS)
+
+foreach(CURL_TEST
+    HAVE_GLIBC_STRERROR_R
+    HAVE_POSIX_STRERROR_R
+    )
+  curl_internal_test(${CURL_TEST})
+endforeach()
+
+# Check for reentrant
+foreach(CURL_TEST
+    HAVE_GETHOSTBYNAME_R_3
+    HAVE_GETHOSTBYNAME_R_5
+    HAVE_GETHOSTBYNAME_R_6)
+  if(NOT ${CURL_TEST})
+    if(${CURL_TEST}_REENTRANT)
+      set(NEED_REENTRANT 1)
+    endif()
+  endif()
+endforeach()
+
+if(NEED_REENTRANT)
+  foreach(CURL_TEST
+      HAVE_GETHOSTBYNAME_R_3
+      HAVE_GETHOSTBYNAME_R_5
+      HAVE_GETHOSTBYNAME_R_6)
+    set(${CURL_TEST} 0)
+    if(${CURL_TEST}_REENTRANT)
+      set(${CURL_TEST} 1)
+    endif()
+  endforeach()
+endif()
+
+# Check clock_gettime(CLOCK_MONOTONIC, x) support
+curl_internal_test(HAVE_CLOCK_GETTIME_MONOTONIC)
+
+# Check compiler support of __builtin_available()
+curl_internal_test(HAVE_BUILTIN_AVAILABLE)
+
+# Some other minor tests
+
+if(NOT HAVE_IN_ADDR_T)
+  set(in_addr_t "unsigned long")
+endif()
+
+# Fix libz / zlib.h
+
+if(NOT CURL_SPECIAL_LIBZ)
+  if(NOT HAVE_LIBZ)
+    set(HAVE_ZLIB_H 0)
+  endif()
+
+  if(NOT HAVE_ZLIB_H)
+    set(HAVE_LIBZ 0)
+  endif()
+endif()
+
+# Check for nonblocking
+set(HAVE_DISABLED_NONBLOCKING 1)
+if(HAVE_FIONBIO OR
+    HAVE_IOCTLSOCKET OR
+    HAVE_IOCTLSOCKET_CASE OR
+    HAVE_O_NONBLOCK)
+  set(HAVE_DISABLED_NONBLOCKING)
+endif()
+
+if(CMAKE_COMPILER_IS_GNUCC AND APPLE)
+  include(CheckCCompilerFlag)
+  check_c_compiler_flag(-Wno-long-double HAVE_C_FLAG_Wno_long_double)
+  if(HAVE_C_FLAG_Wno_long_double)
+    # The Mac version of GCC warns about use of long double.  Disable it.
+    get_source_file_property(MPRINTF_COMPILE_FLAGS mprintf.c COMPILE_FLAGS)
+    if(MPRINTF_COMPILE_FLAGS)
+      set(MPRINTF_COMPILE_FLAGS "${MPRINTF_COMPILE_FLAGS} -Wno-long-double")
+    else()
+      set(MPRINTF_COMPILE_FLAGS "-Wno-long-double")
+    endif()
+    set_source_files_properties(mprintf.c PROPERTIES
+      COMPILE_FLAGS ${MPRINTF_COMPILE_FLAGS})
+  endif()
+endif()
+
+# TODO test which of these headers are required
+if(WIN32)
+  set(CURL_PULL_WS2TCPIP_H ${HAVE_WS2TCPIP_H})
+else()
+  set(CURL_PULL_SYS_TYPES_H ${HAVE_SYS_TYPES_H})
+  set(CURL_PULL_SYS_SOCKET_H ${HAVE_SYS_SOCKET_H})
+  set(CURL_PULL_SYS_POLL_H ${HAVE_SYS_POLL_H})
+endif()
+set(CURL_PULL_STDINT_H ${HAVE_STDINT_H})
+set(CURL_PULL_INTTYPES_H ${HAVE_INTTYPES_H})
+
+include(CMake/OtherTests.cmake)
+
+add_definitions(-DHAVE_CONFIG_H)
+
+# For Windows, all compilers used by CMake should support large files
+if(WIN32)
+  set(USE_WIN32_LARGE_FILES ON)
+
+  # Use the manifest embedded in the Windows Resource
+  set(CMAKE_RC_FLAGS "${CMAKE_RC_FLAGS} -DCURL_EMBED_MANIFEST")
+
+  # Check if crypto functions in wincrypt.h are actually available
+  if(HAVE_WINCRYPT_H)
+    check_symbol_exists(CryptAcquireContext "${CURL_INCLUDES}" USE_WINCRYPT)
+  endif()
+  if(USE_WINCRYPT)
+    set(USE_WIN32_CRYPTO ON)
+  endif()
+
+  # Link required libraries for USE_WIN32_CRYPTO or USE_SCHANNEL
+  if(USE_WIN32_CRYPTO OR USE_SCHANNEL)
+    list(APPEND CURL_LIBS "advapi32" "crypt32")
+  endif()
+endif()
+
+if(MSVC)
+  # Disable default manifest added by CMake
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /MANIFEST:NO")
+
+  add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
+  if(CMAKE_C_FLAGS MATCHES "/W[0-4]")
+    string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
+  else()
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4")
+  endif()
+
+  # Use multithreaded compilation on VS 2008+
+  if(MSVC_VERSION GREATER_EQUAL 1500)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /MP")
+  endif()
+endif()
+
+if(CURL_WERROR)
+  if(MSVC_VERSION)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX")
+  else()
+    # this assumes clang or gcc style options
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
+  endif()
+endif()
+
+if(CURL_LTO)
+  if(CMAKE_VERSION VERSION_LESS 3.9)
+    message(FATAL_ERROR "Requested LTO but your cmake version ${CMAKE_VERSION} is to old. You need at least 3.9")
+  endif()
+
+  cmake_policy(SET CMP0069 NEW)
+
+  include(CheckIPOSupported)
+  check_ipo_supported(RESULT CURL_HAS_LTO OUTPUT CURL_LTO_ERROR LANGUAGES C)
+  if(CURL_HAS_LTO)
+    message(STATUS "LTO supported and enabled")
+  else()
+    message(FATAL_ERROR "LTO was requested - but compiler doesn't support it\n${CURL_LTO_ERROR}")
+  endif()
+endif()
+
+
+# Ugly (but functional) way to include "Makefile.inc" by transforming it (= regenerate it).
+function(transform_makefile_inc INPUT_FILE OUTPUT_FILE)
+  file(READ ${INPUT_FILE} MAKEFILE_INC_TEXT)
+  string(REPLACE "$(top_srcdir)"   "\${CURL_SOURCE_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
+  string(REPLACE "$(top_builddir)" "\${CURL_BINARY_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
+
+  string(REGEX REPLACE "\\\\\n" "!π!α!" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
+  string(REGEX REPLACE "([a-zA-Z_][a-zA-Z0-9_]*)[\t ]*=[\t ]*([^\n]*)" "SET(\\1 \\2)" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
+  string(REPLACE "!π!α!" "\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
+
+  string(REGEX REPLACE "\\$\\(([a-zA-Z_][a-zA-Z0-9_]*)\\)" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace $() with ${}
+  string(REGEX REPLACE "@([a-zA-Z_][a-zA-Z0-9_]*)@" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace @@ with ${}, even if that may not be read by CMake scripts.
+  file(WRITE ${OUTPUT_FILE} ${MAKEFILE_INC_TEXT})
+  set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${INPUT_FILE}")
+endfunction()
+
+include(GNUInstallDirs)
+
+set(CURL_INSTALL_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
+set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
+set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
+set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
+set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
+
+if(USE_MANUAL)
+  add_subdirectory(docs)
+endif()
+
+add_subdirectory(lib)
+
+if(BUILD_CURL_EXE)
+  add_subdirectory(src)
+endif()
+
+cmake_dependent_option(BUILD_TESTING "Build tests"
+  ON "PERL_FOUND;NOT CURL_DISABLE_TESTS"
+  OFF)
+if(BUILD_TESTING)
+  add_subdirectory(tests)
+endif()
+
+# Helper to populate a list (_items) with a label when conditions (the remaining
+# args) are satisfied
+macro(_add_if label)
+  # needs to be a macro to allow this indirection
+  if(${ARGN})
+    set(_items ${_items} "${label}")
+  endif()
+endmacro()
+
+# NTLM support requires crypto function adaptions from various SSL libs
+# TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
+if(NOT (CURL_DISABLE_CRYPTO_AUTH OR CURL_DISABLE_NTLM) AND
+    (USE_OPENSSL OR USE_MBEDTLS OR USE_DARWINSSL OR USE_WIN32_CRYPTO))
+  set(use_curl_ntlm_core ON)
+endif()
+
+# Clear list and try to detect available features
+set(_items)
+_add_if("SSL"           SSL_ENABLED)
+_add_if("IPv6"          ENABLE_IPV6)
+_add_if("unixsockets"   USE_UNIX_SOCKETS)
+_add_if("libz"          HAVE_LIBZ)
+_add_if("brotli"        HAVE_BROTLI)
+_add_if("zstd"          HAVE_ZSTD)
+_add_if("AsynchDNS"     USE_ARES OR USE_THREADS_POSIX OR USE_THREADS_WIN32)
+_add_if("IDN"           HAVE_LIBIDN2 OR USE_WIN32_IDN)
+_add_if("Largefile"     (SIZEOF_CURL_OFF_T GREATER 4) AND
+                        ((SIZEOF_OFF_T GREATER 4) OR USE_WIN32_LARGE_FILES))
+# TODO SSP1 (Schannel) check is missing
+_add_if("SSPI"          USE_WINDOWS_SSPI)
+_add_if("GSS-API"       HAVE_GSSAPI)
+_add_if("alt-svc"       NOT CURL_DISABLE_ALTSVC)
+_add_if("HSTS"          NOT CURL_DISABLE_HSTS)
+# TODO SSP1 missing for SPNEGO
+_add_if("SPNEGO"        NOT CURL_DISABLE_CRYPTO_AUTH AND
+                        (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
+_add_if("Kerberos"      NOT CURL_DISABLE_CRYPTO_AUTH AND
+                        (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
+# NTLM support requires crypto function adaptions from various SSL libs
+# TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
+_add_if("NTLM"          NOT (CURL_DISABLE_CRYPTO_AUTH OR CURL_DISABLE_NTLM) AND
+                        (use_curl_ntlm_core OR USE_WINDOWS_SSPI))
+# TODO missing option (autoconf: --enable-ntlm-wb)
+_add_if("NTLM_WB"       NOT (CURL_DISABLE_CRYPTO_AUTH OR CURL_DISABLE_NTLM) AND
+                        (use_curl_ntlm_core OR USE_WINDOWS_SSPI) AND
+                        NOT CURL_DISABLE_HTTP AND NTLM_WB_ENABLED)
+# TODO missing option (--enable-tls-srp), depends on GNUTLS_SRP/OPENSSL_SRP
+_add_if("TLS-SRP"       USE_TLS_SRP)
+# TODO option --with-nghttp2 tests for nghttp2 lib and nghttp2/nghttp2.h header
+_add_if("HTTP2"         USE_NGHTTP2)
+_add_if("HTTP3"         USE_NGTCP2 OR USE_QUICHE)
+_add_if("MultiSSL"      CURL_WITH_MULTI_SSL)
+_add_if("HTTPS-proxy"   SSL_ENABLED AND (USE_OPENSSL OR USE_GNUTLS OR USE_NSS))
+_add_if("unicode"       ENABLE_UNICODE)
+string(REPLACE ";" " " SUPPORT_FEATURES "${_items}")
+message(STATUS "Enabled features: ${SUPPORT_FEATURES}")
+
+# Clear list and try to detect available protocols
+set(_items)
+_add_if("HTTP"          NOT CURL_DISABLE_HTTP)
+_add_if("HTTPS"         NOT CURL_DISABLE_HTTP AND SSL_ENABLED)
+_add_if("FTP"           NOT CURL_DISABLE_FTP)
+_add_if("FTPS"          NOT CURL_DISABLE_FTP AND SSL_ENABLED)
+_add_if("FILE"          NOT CURL_DISABLE_FILE)
+_add_if("TELNET"        NOT CURL_DISABLE_TELNET)
+_add_if("LDAP"          NOT CURL_DISABLE_LDAP)
+# CURL_DISABLE_LDAP implies CURL_DISABLE_LDAPS
+# TODO check HAVE_LDAP_SSL (in autoconf this is enabled with --enable-ldaps)
+_add_if("LDAPS"         NOT CURL_DISABLE_LDAPS AND
+                        ((USE_OPENLDAP AND SSL_ENABLED) OR
+                        (NOT USE_OPENLDAP AND HAVE_LDAP_SSL)))
+_add_if("DICT"          NOT CURL_DISABLE_DICT)
+_add_if("TFTP"          NOT CURL_DISABLE_TFTP)
+_add_if("GOPHER"        NOT CURL_DISABLE_GOPHER)
+_add_if("GOPHERS"       NOT CURL_DISABLE_GOPHER AND SSL_ENABLED)
+_add_if("POP3"          NOT CURL_DISABLE_POP3)
+_add_if("POP3S"         NOT CURL_DISABLE_POP3 AND SSL_ENABLED)
+_add_if("IMAP"          NOT CURL_DISABLE_IMAP)
+_add_if("IMAPS"         NOT CURL_DISABLE_IMAP AND SSL_ENABLED)
+_add_if("SMB"           NOT CURL_DISABLE_SMB AND
+                        use_curl_ntlm_core AND (SIZEOF_CURL_OFF_T GREATER 4))
+_add_if("SMBS"          NOT CURL_DISABLE_SMB AND SSL_ENABLED AND
+                        use_curl_ntlm_core AND (SIZEOF_CURL_OFF_T GREATER 4))
+_add_if("SMTP"          NOT CURL_DISABLE_SMTP)
+_add_if("SMTPS"         NOT CURL_DISABLE_SMTP AND SSL_ENABLED)
+_add_if("SCP"           USE_LIBSSH2 OR USE_LIBSSH)
+_add_if("SFTP"          USE_LIBSSH2 OR USE_LIBSSH)
+_add_if("RTSP"          NOT CURL_DISABLE_RTSP)
+_add_if("RTMP"          USE_LIBRTMP)
+_add_if("MQTT"          NOT CURL_DISABLE_MQTT)
+if(_items)
+  list(SORT _items)
+endif()
+string(REPLACE ";" " " SUPPORT_PROTOCOLS "${_items}")
+message(STATUS "Enabled protocols: ${SUPPORT_PROTOCOLS}")
+
+# Clear list and collect SSL backends
+set(_items)
+_add_if("Schannel"         SSL_ENABLED AND USE_SCHANNEL)
+_add_if("OpenSSL"          SSL_ENABLED AND USE_OPENSSL)
+_add_if("Secure Transport" SSL_ENABLED AND USE_SECTRANSP)
+_add_if("mbedTLS"          SSL_ENABLED AND USE_MBEDTLS)
+_add_if("BearSSL"          SSL_ENABLED AND USE_BEARSSL)
+_add_if("NSS"              SSL_ENABLED AND USE_NSS)
+_add_if("wolfSSL"          SSL_ENABLED AND USE_WOLFSSL)
+if(_items)
+  list(SORT _items)
+endif()
+string(REPLACE ";" " " SSL_BACKENDS "${_items}")
+message(STATUS "Enabled SSL backends: ${SSL_BACKENDS}")
+
+# curl-config needs the following options to be set.
+set(CC                      "${CMAKE_C_COMPILER}")
+# TODO probably put a -D... options here?
+set(CONFIGURE_OPTIONS       "")
+# TODO when to set "-DCURL_STATICLIB" for CPPFLAG_CURL_STATICLIB?
+set(CPPFLAG_CURL_STATICLIB  "")
+set(CURLVERSION             "${CURL_VERSION}")
+set(exec_prefix             "\${prefix}")
+set(includedir              "\${prefix}/include")
+set(LDFLAGS                 "${CMAKE_SHARED_LINKER_FLAGS}")
+set(LIBCURL_LIBS            "")
+set(libdir                  "${CMAKE_INSTALL_PREFIX}/lib")
+foreach(_lib ${CMAKE_C_IMPLICIT_LINK_LIBRARIES} ${CURL_LIBS})
+  if(TARGET "${_lib}")
+    set(_libname "${_lib}")
+    get_target_property(_imported "${_libname}" IMPORTED)
+    if(NOT _imported)
+      # Reading the LOCATION property on non-imported target will error out.
+      # Assume the user won't need this information in the .pc file.
+      continue()
+    endif()
+    get_target_property(_lib "${_libname}" LOCATION)
+    if(NOT _lib)
+      message(WARNING "Bad lib in library list: ${_libname}")
+      continue()
+    endif()
+  endif()
+  if(_lib MATCHES ".*/.*" OR _lib MATCHES "^-")
+    set(LIBCURL_LIBS          "${LIBCURL_LIBS} ${_lib}")
+  else()
+    set(LIBCURL_LIBS          "${LIBCURL_LIBS} -l${_lib}")
+  endif()
+endforeach()
+if(BUILD_SHARED_LIBS)
+  set(ENABLE_SHARED         "yes")
+  set(ENABLE_STATIC         "no")
+  set(LIBCURL_NO_SHARED     "")
+else()
+  set(ENABLE_SHARED         "no")
+  set(ENABLE_STATIC         "yes")
+  set(LIBCURL_NO_SHARED     "${LIBCURL_LIBS}")
+endif()
+# "a" (Linux) or "lib" (Windows)
+string(REPLACE "." "" libext "${CMAKE_STATIC_LIBRARY_SUFFIX}")
+set(prefix                  "${CMAKE_INSTALL_PREFIX}")
+# Set this to "yes" to append all libraries on which -lcurl is dependent
+set(REQUIRE_LIB_DEPS        "no")
+# SUPPORT_FEATURES
+# SUPPORT_PROTOCOLS
+set(VERSIONNUM              "${CURL_VERSION_NUM}")
+
+# Finally generate a "curl-config" matching this config
+# Use:
+# * ENABLE_SHARED
+# * ENABLE_STATIC
+configure_file("${CURL_SOURCE_DIR}/curl-config.in"
+               "${CURL_BINARY_DIR}/curl-config" @ONLY)
+install(FILES "${CURL_BINARY_DIR}/curl-config"
+        DESTINATION ${CMAKE_INSTALL_BINDIR}
+        PERMISSIONS
+          OWNER_READ OWNER_WRITE OWNER_EXECUTE
+          GROUP_READ GROUP_EXECUTE
+          WORLD_READ WORLD_EXECUTE)
+
+# Finally generate a pkg-config file matching this config
+configure_file("${CURL_SOURCE_DIR}/libcurl.pc.in"
+               "${CURL_BINARY_DIR}/libcurl.pc" @ONLY)
+install(FILES "${CURL_BINARY_DIR}/libcurl.pc"
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+
+# install headers
+install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/curl"
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+    FILES_MATCHING PATTERN "*.h")
+
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    "${version_config}"
+    VERSION ${CURL_VERSION}
+    COMPATIBILITY SameMajorVersion
+)
+
+# Use:
+# * TARGETS_EXPORT_NAME
+# * PROJECT_NAME
+configure_package_config_file(CMake/curl-config.cmake.in
+        "${project_config}"
+        INSTALL_DESTINATION ${CURL_INSTALL_CMAKE_DIR}
+)
+
+if(CURL_ENABLE_EXPORT_TARGET)
+  install(
+          EXPORT "${TARGETS_EXPORT_NAME}"
+          NAMESPACE "${PROJECT_NAME}::"
+          DESTINATION ${CURL_INSTALL_CMAKE_DIR}
+  )
+endif()
+
+install(
+        FILES ${version_config} ${project_config}
+        DESTINATION ${CURL_INSTALL_CMAKE_DIR}
+)
+
+# Workaround for MSVS10 to avoid the Dialog Hell
+# FIXME: This could be removed with future version of CMake.
+if(MSVC_VERSION EQUAL 1600)
+  set(CURL_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/CURL.sln")
+  if(EXISTS "${CURL_SLN_FILENAME}")
+    file(APPEND "${CURL_SLN_FILENAME}" "\n# This should be regenerated!\n")
+  endif()
+endif()
+
+if(NOT TARGET uninstall)
+  configure_file(
+      ${CMAKE_CURRENT_SOURCE_DIR}/CMake/cmake_uninstall.cmake.in
+      ${CMAKE_CURRENT_BINARY_DIR}/CMake/cmake_uninstall.cmake
+      IMMEDIATE @ONLY)
+
+  add_custom_target(uninstall
+      COMMAND ${CMAKE_COMMAND} -P
+      ${CMAKE_CURRENT_BINARY_DIR}/CMake/cmake_uninstall.cmake)
+endif()
diff --git a/curl/COPYING b/curl/COPYING
new file mode 100644
index 0000000..90f05ad
--- /dev/null
+++ b/curl/COPYING
@@ -0,0 +1,22 @@
+COPYRIGHT AND PERMISSION NOTICE
+
+Copyright (c) 1996 - 2022, Daniel Stenberg, , and many
+contributors, see the THANKS file.
+
+All rights reserved.
+
+Permission to use, copy, modify, and distribute this software for any purpose
+with or without fee is hereby granted, provided that the above copyright
+notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
+NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
+OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder shall not
+be used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization of the copyright holder.
diff --git a/curl/MacOSX-Framework b/curl/MacOSX-Framework
new file mode 100644
index 0000000..cecefc7
--- /dev/null
+++ b/curl/MacOSX-Framework
@@ -0,0 +1,158 @@
+#!/usr/bin/env bash
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# This script performs all of the steps needed to build a
+# universal binary libcurl.framework for Mac OS X 10.4 or greater.
+#
+# Hendrik Visage:
+#  Generalizations added since  Snowleopard (10.6) do not include
+# the 10.4u SDK.
+#
+# Also note:
+# 10.5 is the *ONLY* SDK that support PPC64 :( -- 10.6 do not have ppc64 support
+#If you need to have PPC64 support then change below to 1
+PPC64_NEEDED=0
+# Apple does not support building for PPC anymore in Xcode 4 and later.
+# If you're using Xcode 3 or earlier and need PPC support, then change
+# the setting below to 1
+PPC_NEEDED=0
+
+# For me the default is to develop for the platform I am on, and if you
+#desire compatibility with older versions then change USE_OLD to 1 :)
+USE_OLD=0
+
+VERSION=`/usr/bin/sed -ne 's/^#define LIBCURL_VERSION "\(.*\)"/\1/p' include/curl/curlver.h`
+FRAMEWORK_VERSION=Versions/Release-$VERSION
+
+#I also wanted to "copy over" the system, and thus the reason I added the
+# version to Versions/Release-7.20.1 etc.
+# now a simple rsync -vaP libcurl.framework /Library/Frameworks will install it
+# and setup the right paths to this version, leaving the system version
+# "intact", so you can "fix" it later with the links to Versions/A/...
+
+DEVELOPER_PATH=`xcode-select --print-path`
+# Around Xcode 4.3, SDKs were moved from the Developer folder into the
+# MacOSX.platform folder
+if test -d "$DEVELOPER_PATH/Platforms/MacOSX.platform/Developer/SDKs"; then
+ SDK_PATH="$DEVELOPER_PATH/Platforms/MacOSX.platform/Developer/SDKs"
+else
+ SDK_PATH="$DEVELOPER_PATH/SDKs"
+fi
+OLD_SDK=`ls  $SDK_PATH|head -1`
+NEW_SDK=`ls -r $SDK_PATH|head -1`
+
+if test "0"$USE_OLD -gt 0
+then
+ SDK32=$OLD_SDK
+else
+ SDK32=$NEW_SDK
+fi
+
+MACVER=`echo $SDK32|sed -e s/[a-zA-Z]//g -e s/.\$//`
+
+SDK32_DIR=$SDK_PATH/$SDK32
+MINVER32='-mmacosx-version-min='$MACVER
+if test $PPC_NEEDED -gt 0; then
+ ARCHES32='-arch i386 -arch ppc'
+else
+ ARCHES32='-arch i386'
+fi
+
+if test $PPC64_NEEDED -gt 0
+then
+  SDK64=10.5
+  ARCHES64='-arch x86_64 -arch ppc64'
+  SDK64=`ls  $SDK_PATH|grep 10.5|head -1`
+else
+ ARCHES64='-arch x86_64'
+ #We "know" that 10.4 and earlier do not support 64bit
+ OLD_SDK64=`ls  $SDK_PATH|egrep -v "10.[0-4]"|head -1`
+ NEW_SDK64=`ls -r $SDK_PATH|egrep -v "10.[0-4][^0-9]" | head -1`
+ if test $USE_OLD -gt 0
+  then
+   SDK64=$OLD_SDK64
+  else
+   SDK64=$NEW_SDK64
+  fi
+fi
+
+SDK64_DIR=$SDK_PATH/$SDK64
+MACVER64=`echo $SDK64|sed -e s/[a-zA-Z]//g -e s/.\$//`
+
+MINVER64='-mmacosx-version-min='$MACVER64
+
+if test ! -z $SDK32; then
+  echo "----Configuring libcurl for 32 bit universal framework..."
+  make clean
+  ./configure --disable-dependency-tracking --disable-static --with-gssapi --with-secure-transport \
+    CFLAGS="-Os -isysroot $SDK32_DIR $ARCHES32" \
+    LDFLAGS="-Wl,-syslibroot,$SDK32_DIR $ARCHES32 -Wl,-headerpad_max_install_names" \
+    CC=$CC
+
+  echo "----Building 32 bit libcurl..."
+  make -j `sysctl -n hw.logicalcpu_max`
+
+  echo "----Creating 32 bit framework..."
+  rm -r libcurl.framework
+  mkdir -p libcurl.framework/${FRAMEWORK_VERSION}/Resources
+  cp lib/.libs/libcurl.dylib libcurl.framework/${FRAMEWORK_VERSION}/libcurl
+  install_name_tool -id @rpath/libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl
+  cp lib/libcurl.plist libcurl.framework/${FRAMEWORK_VERSION}/Resources/Info.plist
+  mkdir -p libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl
+  cp include/curl/*.h libcurl.framework/${FRAMEWORK_VERSION}/Headers/curl
+  pushd libcurl.framework
+  ln -fs ${FRAMEWORK_VERSION}/libcurl libcurl
+  ln -fs ${FRAMEWORK_VERSION}/Resources Resources
+  ln -fs ${FRAMEWORK_VERSION}/Headers Headers
+  cd Versions
+  ln -fs $(basename "${FRAMEWORK_VERSION}") Current
+
+  echo Testing for SDK64
+  if test -d $SDK64_DIR; then
+  echo entering...
+    popd
+    make clean
+    echo "----Configuring libcurl for 64 bit universal framework..."
+    ./configure --disable-dependency-tracking --disable-static --with-gssapi --with-secure-transport \
+      CFLAGS="-Os -isysroot $SDK64_DIR $ARCHES64" \
+      LDFLAGS="-Wl,-syslibroot,$SDK64_DIR $ARCHES64 -Wl,-headerpad_max_install_names" \
+      CC=$CC
+
+    echo "----Building 64 bit libcurl..."
+    make -j `sysctl -n hw.logicalcpu_max`
+
+    echo "----Appending 64 bit framework to 32 bit framework..."
+    cp lib/.libs/libcurl.dylib libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
+    install_name_tool -id @rpath/libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
+    cp libcurl.framework/${FRAMEWORK_VERSION}/libcurl libcurl.framework/${FRAMEWORK_VERSION}/libcurl32
+    pwd
+    lipo libcurl.framework/${FRAMEWORK_VERSION}/libcurl32 libcurl.framework/${FRAMEWORK_VERSION}/libcurl64 -create -output libcurl.framework/${FRAMEWORK_VERSION}/libcurl
+    rm libcurl.framework/${FRAMEWORK_VERSION}/libcurl32 libcurl.framework/${FRAMEWORK_VERSION}/libcurl64
+  fi
+
+  pwd
+  lipo -info libcurl.framework/${FRAMEWORK_VERSION}/libcurl
+  echo "libcurl.framework is built and can now be included in other projects."
+  echo "Copy libcurl.framework to your bundle's Contents/Frameworks folder, ~/Library/Frameworks or /Library/Frameworks."
+else
+  echo "Building libcurl.framework requires Mac OS X 10.4 or later with the MacOSX10.4/5/6 SDK installed."
+fi
diff --git a/curl/Makefile b/curl/Makefile
new file mode 100644
index 0000000..4ac0e67
--- /dev/null
+++ b/curl/Makefile
@@ -0,0 +1,90 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+all:
+	./configure
+	make
+
+ssl:
+	./configure --with-openssl
+	make
+
+mingw32:
+	$(MAKE) -C lib -f Makefile.m32
+	$(MAKE) -C src -f Makefile.m32
+
+mingw32-clean:
+	$(MAKE) -C lib -f Makefile.m32 clean
+	$(MAKE) -C src -f Makefile.m32 clean
+	$(MAKE) -C docs/examples -f Makefile.m32 clean
+
+mingw32-vclean mingw32-distclean:
+	$(MAKE) -C lib -f Makefile.m32 vclean
+	$(MAKE) -C src -f Makefile.m32 vclean
+	$(MAKE) -C docs/examples -f Makefile.m32 vclean
+
+mingw32-examples%:
+	$(MAKE) -C docs/examples -f Makefile.m32 CFG=$@
+
+mingw32%:
+	$(MAKE) -C lib -f Makefile.m32 CFG=$@
+	$(MAKE) -C src -f Makefile.m32 CFG=$@
+
+vc:
+	cd winbuild
+	nmake /f Makefile.vc MACHINE=x86
+
+vc-x64:
+	cd winbuild
+	nmake /f Makefile.vc MACHINE=x64
+
+djgpp:
+	$(MAKE) -C lib -f Makefile.dj
+	$(MAKE) -C src -f Makefile.dj
+
+cygwin:
+	./configure
+	make
+
+cygwin-ssl:
+	./configure --with-openssl
+	make
+
+amiga:
+	cd ./lib && make -f makefile.amiga
+	cd ./src && make -f makefile.amiga
+
+unix: all
+
+unix-ssl: ssl
+
+linux: all
+
+linux-ssl: ssl
+
+ca-bundle: scripts/mk-ca-bundle.pl
+	@echo "generate a fresh ca-bundle.crt"
+	@perl $< -b -l -u lib/ca-bundle.crt
+
+ca-firefox: lib/firefox-db2pem.sh
+	@echo "generate a fresh ca-bundle.crt"
+	./lib/firefox-db2pem.sh lib/ca-bundle.crt
diff --git a/curl/Makefile.am b/curl/Makefile.am
new file mode 100644
index 0000000..42a8d9d
--- /dev/null
+++ b/curl/Makefile.am
@@ -0,0 +1,610 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+AUTOMAKE_OPTIONS = foreign
+
+ACLOCAL_AMFLAGS = -I m4
+
+CMAKE_DIST =                                    \
+ CMake/cmake_uninstall.cmake.in                 \
+ CMake/CMakeConfigurableFile.in                 \
+ CMake/curl-config.cmake.in                     \
+ CMake/CurlSymbolHiding.cmake                   \
+ CMake/CurlTests.c                              \
+ CMake/FindBearSSL.cmake                        \
+ CMake/FindBrotli.cmake                         \
+ CMake/FindCARES.cmake                          \
+ CMake/FindGSS.cmake                            \
+ CMake/FindLibSSH2.cmake                        \
+ CMake/FindMbedTLS.cmake                        \
+ CMake/FindMSH3.cmake                           \
+ CMake/FindNGHTTP2.cmake                        \
+ CMake/FindNGHTTP3.cmake                        \
+ CMake/FindNGTCP2.cmake                         \
+ CMake/FindNSS.cmake                            \
+ CMake/FindQUICHE.cmake                         \
+ CMake/FindWolfSSL.cmake                        \
+ CMake/FindZstd.cmake                           \
+ CMake/Macros.cmake                             \
+ CMake/OtherTests.cmake                         \
+ CMake/Platforms/WindowsCache.cmake             \
+ CMake/Utilities.cmake                          \
+ CMakeLists.txt
+
+VC10_LIBTMPL = projects/Windows/VC10/lib/libcurl.tmpl
+VC10_LIBVCXPROJ = projects/Windows/VC10/lib/libcurl.vcxproj.dist
+VC10_LIBVCXPROJ_DEPS = $(VC10_LIBTMPL) Makefile.am lib/Makefile.inc
+VC10_SRCTMPL = projects/Windows/VC10/src/curl.tmpl
+VC10_SRCVCXPROJ = projects/Windows/VC10/src/curl.vcxproj.dist
+VC10_SRCVCXPROJ_DEPS = $(VC10_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC11_LIBTMPL = projects/Windows/VC11/lib/libcurl.tmpl
+VC11_LIBVCXPROJ = projects/Windows/VC11/lib/libcurl.vcxproj.dist
+VC11_LIBVCXPROJ_DEPS = $(VC11_LIBTMPL) Makefile.am lib/Makefile.inc
+VC11_SRCTMPL = projects/Windows/VC11/src/curl.tmpl
+VC11_SRCVCXPROJ = projects/Windows/VC11/src/curl.vcxproj.dist
+VC11_SRCVCXPROJ_DEPS = $(VC11_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC12_LIBTMPL = projects/Windows/VC12/lib/libcurl.tmpl
+VC12_LIBVCXPROJ = projects/Windows/VC12/lib/libcurl.vcxproj.dist
+VC12_LIBVCXPROJ_DEPS = $(VC12_LIBTMPL) Makefile.am lib/Makefile.inc
+VC12_SRCTMPL = projects/Windows/VC12/src/curl.tmpl
+VC12_SRCVCXPROJ = projects/Windows/VC12/src/curl.vcxproj.dist
+VC12_SRCVCXPROJ_DEPS = $(VC12_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC14_LIBTMPL = projects/Windows/VC14/lib/libcurl.tmpl
+VC14_LIBVCXPROJ = projects/Windows/VC14/lib/libcurl.vcxproj.dist
+VC14_LIBVCXPROJ_DEPS = $(VC14_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_SRCTMPL = projects/Windows/VC14/src/curl.tmpl
+VC14_SRCVCXPROJ = projects/Windows/VC14/src/curl.vcxproj.dist
+VC14_SRCVCXPROJ_DEPS = $(VC14_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC14_10_LIBTMPL = projects/Windows/VC14.10/lib/libcurl.tmpl
+VC14_10_LIBVCXPROJ = projects/Windows/VC14.10/lib/libcurl.vcxproj.dist
+VC14_10_LIBVCXPROJ_DEPS = $(VC14_10_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_10_SRCTMPL = projects/Windows/VC14.10/src/curl.tmpl
+VC14_10_SRCVCXPROJ = projects/Windows/VC14.10/src/curl.vcxproj.dist
+VC14_10_SRCVCXPROJ_DEPS = $(VC14_10_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC14_30_LIBTMPL = projects/Windows/VC14.30/lib/libcurl.tmpl
+VC14_30_LIBVCXPROJ = projects/Windows/VC14.30/lib/libcurl.vcxproj.dist
+VC14_30_LIBVCXPROJ_DEPS = $(VC14_30_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_30_SRCTMPL = projects/Windows/VC14.30/src/curl.tmpl
+VC14_30_SRCVCXPROJ = projects/Windows/VC14.30/src/curl.vcxproj.dist
+VC14_30_SRCVCXPROJ_DEPS = $(VC14_30_SRCTMPL) Makefile.am src/Makefile.inc
+
+VC_DIST = projects/README.md                           \
+ projects/build-openssl.bat                            \
+ projects/build-wolfssl.bat                            \
+ projects/checksrc.bat                                 \
+ projects/Windows/VC10/curl-all.sln                    \
+ projects/Windows/VC10/lib/libcurl.sln                 \
+ projects/Windows/VC10/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC10/src/curl.sln                    \
+ projects/Windows/VC10/src/curl.vcxproj.filters        \
+ projects/Windows/VC11/curl-all.sln                    \
+ projects/Windows/VC11/lib/libcurl.sln                 \
+ projects/Windows/VC11/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC11/src/curl.sln                    \
+ projects/Windows/VC11/src/curl.vcxproj.filters        \
+ projects/Windows/VC12/curl-all.sln                    \
+ projects/Windows/VC12/lib/libcurl.sln                 \
+ projects/Windows/VC12/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC12/src/curl.sln                    \
+ projects/Windows/VC12/src/curl.vcxproj.filters        \
+ projects/Windows/VC14/curl-all.sln                    \
+ projects/Windows/VC14/lib/libcurl.sln                 \
+ projects/Windows/VC14/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC14/src/curl.sln                    \
+ projects/Windows/VC14/src/curl.vcxproj.filters        \
+ projects/Windows/VC14.10/curl-all.sln                 \
+ projects/Windows/VC14.10/lib/libcurl.sln              \
+ projects/Windows/VC14.10/lib/libcurl.vcxproj.filters  \
+ projects/Windows/VC14.10/src/curl.sln                 \
+ projects/Windows/VC14.10/src/curl.vcxproj.filters     \
+ projects/Windows/VC14.30/curl-all.sln                 \
+ projects/Windows/VC14.30/lib/libcurl.sln              \
+ projects/Windows/VC14.30/lib/libcurl.vcxproj.filters  \
+ projects/Windows/VC14.30/src/curl.sln                 \
+ projects/Windows/VC14.30/src/curl.vcxproj.filters     \
+ projects/generate.bat                                 \
+ projects/wolfssl_options.h                            \
+ projects/wolfssl_override.props
+
+WINBUILD_DIST = winbuild/README.md winbuild/gen_resp_file.bat \
+ winbuild/MakefileBuild.vc winbuild/Makefile.vc
+
+PLAN9_DIST = plan9/include/mkfile \
+ plan9/include/mkfile             \
+ plan9/mkfile.proto               \
+ plan9/mkfile                     \
+ plan9/README                     \
+ plan9/lib/mkfile.inc             \
+ plan9/lib/mkfile                 \
+ plan9/src/mkfile.inc             \
+ plan9/src/mkfile
+
+EXTRA_DIST = CHANGES COPYING maketgz Makefile.dist curl-config.in            \
+ RELEASE-NOTES buildconf libcurl.pc.in MacOSX-Framework $(CMAKE_DIST)        \
+ $(VC_DIST) $(WINBUILD_DIST) $(PLAN9_DIST) lib/libcurl.vers.in buildconf.bat
+
+CLEANFILES = $(VC10_LIBVCXPROJ) $(VC10_SRCVCXPROJ) $(VC11_LIBVCXPROJ)        \
+ $(VC11_SRCVCXPROJ) $(VC12_LIBVCXPROJ) $(VC12_SRCVCXPROJ) $(VC14_LIBVCXPROJ) \
+ $(VC14_SRCVCXPROJ) $(VC14_10_LIBVCXPROJ) $(VC14_10_SRCVCXPROJ)              \
+ $(VC14_30_LIBVCXPROJ) $(VC14_30_SRCVCXPROJ)
+
+bin_SCRIPTS = curl-config
+
+SUBDIRS = lib src
+DIST_SUBDIRS = $(SUBDIRS) tests packages scripts include docs
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libcurl.pc
+
+# List of files required to generate VC IDE .dsp, .vcproj and .vcxproj files
+include lib/Makefile.inc
+include src/Makefile.inc
+
+dist-hook:
+	rm -rf $(top_builddir)/tests/log
+	find $(distdir) -name "*.dist" -exec rm {} \;
+	(distit=`find $(srcdir) -name "*.dist" | grep -v ./ares/`; \
+	for file in $$distit; do \
+	  strip=`echo $$file | sed -e s/^$(srcdir)// -e s/\.dist//`; \
+	  cp -p $$file $(distdir)$$strip; \
+	done)
+
+html:
+	cd docs && $(MAKE) html
+
+pdf:
+	cd docs && $(MAKE) pdf
+
+check: test examples check-docs
+
+if CROSSCOMPILING
+test-full: test
+test-torture: test
+
+test:
+	@echo "NOTICE: we can't run the tests when cross-compiling!"
+
+else
+
+test:
+	@(cd tests; $(MAKE) all quiet-test)
+
+test-full:
+	@(cd tests; $(MAKE) all full-test)
+
+test-nonflaky:
+	@(cd tests; $(MAKE) all nonflaky-test)
+
+test-torture:
+	@(cd tests; $(MAKE) all torture-test)
+
+test-event:
+	@(cd tests; $(MAKE) all event-test)
+
+test-am:
+	@(cd tests; $(MAKE) all am-test)
+
+test-ci:
+	@(cd tests; $(MAKE) all ci-test)
+
+endif
+
+examples:
+	@(cd docs/examples; $(MAKE) check)
+
+check-docs:
+	@(cd docs/libcurl; $(MAKE) check)
+
+# Build source and binary rpms. For rpm-3.0 and above, the ~/.rpmmacros
+# must contain the following line:
+# %_topdir /home/loic/local/rpm
+# and that /home/loic/local/rpm contains the directory SOURCES, BUILD etc.
+#
+# cd /home/loic/local/rpm ; mkdir -p SOURCES BUILD RPMS/i386 SPECS SRPMS
+#
+# If additional configure flags are needed to build the package, add the
+# following in ~/.rpmmacros
+# %configure CFLAGS="%{optflags}" ./configure %{_target_platform} --prefix=%{_prefix} ${AM_CONFIGFLAGS}
+# and run make rpm in the following way:
+# AM_CONFIGFLAGS='--with-uri=/home/users/loic/local/RedHat-6.2' make rpm
+#
+
+rpms:
+	$(MAKE) RPMDIST=curl rpm
+	$(MAKE) RPMDIST=curl-ssl rpm
+
+rpm:
+	RPM_TOPDIR=`rpm --showrc | $(PERL) -n -e 'print if(s/.*_topdir\s+(.*)/$$1/)'` ; \
+	cp $(srcdir)/packages/Linux/RPM/$(RPMDIST).spec $$RPM_TOPDIR/SPECS ; \
+	cp $(PACKAGE)-$(VERSION).tar.gz $$RPM_TOPDIR/SOURCES ; \
+	rpm -ba --clean --rmsource $$RPM_TOPDIR/SPECS/$(RPMDIST).spec ; \
+	mv $$RPM_TOPDIR/RPMS/i386/$(RPMDIST)-*.rpm . ; \
+	mv $$RPM_TOPDIR/SRPMS/$(RPMDIST)-*.src.rpm .
+
+#
+# Build a Solaris pkgadd format file
+# run 'make pkgadd' once you've done './configure' and 'make' to make a Solaris pkgadd format
+# file (which ends up back in this directory).
+# The pkgadd file is in 'pkgtrans' format, so to install on Solaris, do
+# pkgadd -d ./HAXXcurl-*
+#
+
+# gak - libtool requires an absolute directory, hence the pwd below...
+pkgadd:
+	umask 022 ; \
+	$(MAKE) install DESTDIR=`/bin/pwd`/packages/Solaris/root ; \
+	cat COPYING > $(srcdir)/packages/Solaris/copyright ; \
+	cd $(srcdir)/packages/Solaris && $(MAKE) package
+
+#
+# Build a cygwin binary tarball installation file
+# resulting .tar.bz2 file will end up at packages/Win32/cygwin
+cygwinbin:
+	$(MAKE) -C packages/Win32/cygwin cygwinbin
+
+# We extend the standard install with a custom hook:
+install-data-hook:
+	(cd include && $(MAKE) install)
+	(cd docs && $(MAKE) install)
+	(cd docs/libcurl && $(MAKE) install)
+
+# We extend the standard uninstall with a custom hook:
+uninstall-hook:
+	(cd include && $(MAKE) uninstall)
+	(cd docs && $(MAKE) uninstall)
+	(cd docs/libcurl && $(MAKE) uninstall)
+
+ca-bundle: scripts/mk-ca-bundle.pl
+	@echo "generating a fresh ca-bundle.crt"
+	@perl $< -b -l -u lib/ca-bundle.crt
+
+ca-firefox: scripts/firefox-db2pem.sh
+	@echo "generating a fresh ca-bundle.crt"
+	$< lib/ca-bundle.crt
+
+checksrc:
+	(cd lib && $(MAKE) checksrc)
+	(cd src && $(MAKE) checksrc)
+	(cd tests && $(MAKE) checksrc)
+	(cd include/curl && $(MAKE) checksrc)
+	(cd docs/examples && $(MAKE) checksrc)
+	(cd packages && $(MAKE) checksrc)
+
+.PHONY: vc-ide
+
+vc-ide: $(VC10_LIBVCXPROJ_DEPS) $(VC10_SRCVCXPROJ_DEPS)                  \
+ $(VC11_LIBVCXPROJ_DEPS) $(VC11_SRCVCXPROJ_DEPS) $(VC12_LIBVCXPROJ_DEPS) \
+ $(VC12_SRCVCXPROJ_DEPS) $(VC14_LIBVCXPROJ_DEPS) $(VC14_SRCVCXPROJ_DEPS) \
+ $(VC14_10_LIBVCXPROJ_DEPS) $(VC14_10_SRCVCXPROJ_DEPS)                   \
+ $(VC14_30_LIBVCXPROJ_DEPS) $(VC14_30_SRCVCXPROJ_DEPS)
+	@(win32_lib_srcs='$(LIB_CFILES)'; \
+	win32_lib_hdrs='$(LIB_HFILES) config-win32.h'; \
+	win32_lib_rc='$(LIB_RCFILES)'; \
+	win32_lib_vauth_srcs='$(LIB_VAUTH_CFILES)'; \
+	win32_lib_vauth_hdrs='$(LIB_VAUTH_HFILES)'; \
+	win32_lib_vquic_srcs='$(LIB_VQUIC_CFILES)'; \
+	win32_lib_vquic_hdrs='$(LIB_VQUIC_HFILES)'; \
+	win32_lib_vssh_srcs='$(LIB_VSSH_CFILES)'; \
+	win32_lib_vssh_hdrs='$(LIB_VSSH_HFILES)'; \
+	win32_lib_vtls_srcs='$(LIB_VTLS_CFILES)'; \
+	win32_lib_vtls_hdrs='$(LIB_VTLS_HFILES)'; \
+	win32_src_srcs='$(CURL_CFILES)'; \
+	win32_src_hdrs='$(CURL_HFILES)'; \
+	win32_src_rc='$(CURL_RCFILES)'; \
+	win32_src_x_srcs='$(CURLX_CFILES)'; \
+	win32_src_x_hdrs='$(CURLX_HFILES) ../lib/config-win32.h'; \
+	\
+	sorted_lib_srcs=`for file in $$win32_lib_srcs; do echo $$file; done | sort`; \
+	sorted_lib_hdrs=`for file in $$win32_lib_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_srcs=`for file in $$win32_lib_vauth_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_hdrs=`for file in $$win32_lib_vauth_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vquic_srcs=`for file in $$win32_lib_vquic_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vquic_hdrs=`for file in $$win32_lib_vquic_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vssh_srcs=`for file in $$win32_lib_vssh_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vssh_hdrs=`for file in $$win32_lib_vssh_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vtls_srcs=`for file in $$win32_lib_vtls_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vtls_hdrs=`for file in $$win32_lib_vtls_hdrs; do echo $$file; done | sort`; \
+	sorted_src_srcs=`for file in $$win32_src_srcs; do echo $$file; done | sort`; \
+	sorted_src_hdrs=`for file in $$win32_src_hdrs; do echo $$file; done | sort`; \
+	sorted_src_x_srcs=`for file in $$win32_src_x_srcs; do echo $$file; done | sort`; \
+	sorted_src_x_hdrs=`for file in $$win32_src_x_hdrs; do echo $$file; done | sort`; \
+	\
+	awk_code='\
+function gen_element(type, dir, file)\
+{\
+  sub(/vauth\//, "", file);\
+  sub(/vquic\//, "", file);\
+  sub(/vssh\//, "", file);\
+  sub(/vtls\//, "", file);\
+\
+  spaces="    ";\
+  if(dir == "lib\\vauth" ||\
+     dir == "lib\\vquic" ||\
+     dir == "lib\\vssh"  ||\
+     dir == "lib\\vtls")\
+    tabs="				";\
+  else\
+    tabs="			";\
+\
+  if(type == "dsp") {\
+    printf("# Begin Source File\r\n");\
+    printf("\r\n");\
+    printf("SOURCE=..\\..\\..\\..\\%s\\%s\r\n", dir, file);\
+    printf("# End Source File\r\n");\
+  }\
+  else if(type == "vcproj1") {\
+    printf("%s\r\n",\
+           tabs, dir, file);\
+    printf("%s\r\n", tabs);\
+  }\
+  else if(type == "vcproj2") {\
+    printf("%s\r\n", tabs);\
+    printf("%s\r\n", tabs);\
+  }\
+  else if(type == "vcxproj") {\
+    i = index(file, ".");\
+    ext = substr(file, i == 0 ? 0 : i + 1);\
+\
+    if(ext == "c")\
+      printf("%s\r\n",\
+             spaces, dir, file);\
+    else if(ext == "h")\
+      printf("%s\r\n",\
+             spaces, dir, file);\
+    else if(ext == "rc")\
+      printf("%s\r\n",\
+      spaces, dir, file);\
+  }\
+}\
+\
+{\
+\
+  if($$0 == "CURL_LIB_C_FILES") {\
+    split(lib_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_H_FILES") {\
+    split(lib_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_RC_FILES") {\
+    split(lib_rc, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VAUTH_C_FILES") {\
+    split(lib_vauth_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VAUTH_H_FILES") {\
+    split(lib_vauth_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VQUIC_C_FILES") {\
+    split(lib_vquic_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vquic", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VQUIC_H_FILES") {\
+    split(lib_vquic_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vquic", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VSSH_C_FILES") {\
+    split(lib_vssh_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vssh", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VSSH_H_FILES") {\
+    split(lib_vssh_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vssh", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VTLS_C_FILES") {\
+    split(lib_vtls_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vtls", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VTLS_H_FILES") {\
+    split(lib_vtls_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vtls", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_C_FILES") {\
+    split(src_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_H_FILES") {\
+    split(src_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_RC_FILES") {\
+    split(src_rc, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_X_C_FILES") {\
+    split(src_x_srcs, arr);\
+    for(val in arr) {\
+      sub(/..\/lib\//, "", arr[val]);\
+      gen_element(proj_type, "lib", arr[val]);\
+    }\
+  }\
+  else if($$0 == "CURL_SRC_X_H_FILES") {\
+    split(src_x_hdrs, arr);\
+    for(val in arr) {\
+      sub(/..\/lib\//, "", arr[val]);\
+      gen_element(proj_type, "lib", arr[val]);\
+    }\
+  }\
+  else\
+    printf("%s\r\n", $$0);\
+}';\
+	\
+	echo "generating '$(VC10_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC10_LIBTMPL) > $(VC10_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC10_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC10_SRCTMPL) > $(VC10_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC11_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC11_LIBTMPL) > $(VC11_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC11_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC11_SRCTMPL) > $(VC11_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC12_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC12_LIBTMPL) > $(VC12_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC12_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC12_SRCTMPL) > $(VC12_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_LIBTMPL) > $(VC14_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_SRCTMPL) > $(VC14_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_10_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_10_LIBTMPL) > $(VC14_10_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_10_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_10_SRCTMPL) > $(VC14_10_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_30_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_30_LIBTMPL) > $(VC14_30_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_30_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_30_SRCTMPL) > $(VC14_30_SRCVCXPROJ) || { exit 1; };)
+
+tidy:
+	(cd src && $(MAKE) tidy)
+	(cd lib && $(MAKE) tidy)
diff --git a/curl/Makefile.in b/curl/Makefile.in
new file mode 100644
index 0000000..39a1250
--- /dev/null
+++ b/curl/Makefile.in
@@ -0,0 +1,2104 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# ./src/Makefile.inc
+# Using the backslash as line continuation character might be problematic with
+# some make flavours. If we ever want to change this in a portable manner then
+# we should consider this idea :
+# CSRC1 = file1.c file2.c file3.c
+# CSRC2 = file4.c file5.c file6.c
+# CSOURCES = $(CSRC1) $(CSRC2)
+
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
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+	$(top_srcdir)/m4/curl-openssl.m4 \
+	$(top_srcdir)/m4/curl-override.m4 \
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+	$(am__configure_deps) $(am__DIST_COMMON)
+am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
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+	install-data-recursive install-dvi-recursive \
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+CURL_LT_SHLIB_VERSIONED_FLAVOUR = @CURL_LT_SHLIB_VERSIONED_FLAVOUR@
+CURL_NETWORK_AND_TIME_LIBS = @CURL_NETWORK_AND_TIME_LIBS@
+CURL_NETWORK_LIBS = @CURL_NETWORK_LIBS@
+CURL_PLIST_VERSION = @CURL_PLIST_VERSION@
+CURL_WITH_MULTI_SSL = @CURL_WITH_MULTI_SSL@
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+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FISH_FUNCTIONS_DIR = @FISH_FUNCTIONS_DIR@
+GCOV = @GCOV@
+GREP = @GREP@
+HAVE_BROTLI = @HAVE_BROTLI@
+HAVE_GNUTLS_SRP = @HAVE_GNUTLS_SRP@
+HAVE_LDAP_SSL = @HAVE_LDAP_SSL@
+HAVE_LIBZ = @HAVE_LIBZ@
+HAVE_OPENSSL_SRP = @HAVE_OPENSSL_SRP@
+HAVE_PROTO_BSDSOCKET_H = @HAVE_PROTO_BSDSOCKET_H@
+HAVE_ZSTD = @HAVE_ZSTD@
+IDN_ENABLED = @IDN_ENABLED@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+IPV6_ENABLED = @IPV6_ENABLED@
+LCOV = @LCOV@
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+AUTOMAKE_OPTIONS = foreign
+ACLOCAL_AMFLAGS = -I m4
+CMAKE_DIST = \
+ CMake/cmake_uninstall.cmake.in                 \
+ CMake/CMakeConfigurableFile.in                 \
+ CMake/curl-config.cmake.in                     \
+ CMake/CurlSymbolHiding.cmake                   \
+ CMake/CurlTests.c                              \
+ CMake/FindBearSSL.cmake                        \
+ CMake/FindBrotli.cmake                         \
+ CMake/FindCARES.cmake                          \
+ CMake/FindGSS.cmake                            \
+ CMake/FindLibSSH2.cmake                        \
+ CMake/FindMbedTLS.cmake                        \
+ CMake/FindMSH3.cmake                           \
+ CMake/FindNGHTTP2.cmake                        \
+ CMake/FindNGHTTP3.cmake                        \
+ CMake/FindNGTCP2.cmake                         \
+ CMake/FindNSS.cmake                            \
+ CMake/FindQUICHE.cmake                         \
+ CMake/FindWolfSSL.cmake                        \
+ CMake/FindZstd.cmake                           \
+ CMake/Macros.cmake                             \
+ CMake/OtherTests.cmake                         \
+ CMake/Platforms/WindowsCache.cmake             \
+ CMake/Utilities.cmake                          \
+ CMakeLists.txt
+
+VC10_LIBTMPL = projects/Windows/VC10/lib/libcurl.tmpl
+VC10_LIBVCXPROJ = projects/Windows/VC10/lib/libcurl.vcxproj.dist
+VC10_LIBVCXPROJ_DEPS = $(VC10_LIBTMPL) Makefile.am lib/Makefile.inc
+VC10_SRCTMPL = projects/Windows/VC10/src/curl.tmpl
+VC10_SRCVCXPROJ = projects/Windows/VC10/src/curl.vcxproj.dist
+VC10_SRCVCXPROJ_DEPS = $(VC10_SRCTMPL) Makefile.am src/Makefile.inc
+VC11_LIBTMPL = projects/Windows/VC11/lib/libcurl.tmpl
+VC11_LIBVCXPROJ = projects/Windows/VC11/lib/libcurl.vcxproj.dist
+VC11_LIBVCXPROJ_DEPS = $(VC11_LIBTMPL) Makefile.am lib/Makefile.inc
+VC11_SRCTMPL = projects/Windows/VC11/src/curl.tmpl
+VC11_SRCVCXPROJ = projects/Windows/VC11/src/curl.vcxproj.dist
+VC11_SRCVCXPROJ_DEPS = $(VC11_SRCTMPL) Makefile.am src/Makefile.inc
+VC12_LIBTMPL = projects/Windows/VC12/lib/libcurl.tmpl
+VC12_LIBVCXPROJ = projects/Windows/VC12/lib/libcurl.vcxproj.dist
+VC12_LIBVCXPROJ_DEPS = $(VC12_LIBTMPL) Makefile.am lib/Makefile.inc
+VC12_SRCTMPL = projects/Windows/VC12/src/curl.tmpl
+VC12_SRCVCXPROJ = projects/Windows/VC12/src/curl.vcxproj.dist
+VC12_SRCVCXPROJ_DEPS = $(VC12_SRCTMPL) Makefile.am src/Makefile.inc
+VC14_LIBTMPL = projects/Windows/VC14/lib/libcurl.tmpl
+VC14_LIBVCXPROJ = projects/Windows/VC14/lib/libcurl.vcxproj.dist
+VC14_LIBVCXPROJ_DEPS = $(VC14_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_SRCTMPL = projects/Windows/VC14/src/curl.tmpl
+VC14_SRCVCXPROJ = projects/Windows/VC14/src/curl.vcxproj.dist
+VC14_SRCVCXPROJ_DEPS = $(VC14_SRCTMPL) Makefile.am src/Makefile.inc
+VC14_10_LIBTMPL = projects/Windows/VC14.10/lib/libcurl.tmpl
+VC14_10_LIBVCXPROJ = projects/Windows/VC14.10/lib/libcurl.vcxproj.dist
+VC14_10_LIBVCXPROJ_DEPS = $(VC14_10_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_10_SRCTMPL = projects/Windows/VC14.10/src/curl.tmpl
+VC14_10_SRCVCXPROJ = projects/Windows/VC14.10/src/curl.vcxproj.dist
+VC14_10_SRCVCXPROJ_DEPS = $(VC14_10_SRCTMPL) Makefile.am src/Makefile.inc
+VC14_30_LIBTMPL = projects/Windows/VC14.30/lib/libcurl.tmpl
+VC14_30_LIBVCXPROJ = projects/Windows/VC14.30/lib/libcurl.vcxproj.dist
+VC14_30_LIBVCXPROJ_DEPS = $(VC14_30_LIBTMPL) Makefile.am lib/Makefile.inc
+VC14_30_SRCTMPL = projects/Windows/VC14.30/src/curl.tmpl
+VC14_30_SRCVCXPROJ = projects/Windows/VC14.30/src/curl.vcxproj.dist
+VC14_30_SRCVCXPROJ_DEPS = $(VC14_30_SRCTMPL) Makefile.am src/Makefile.inc
+VC_DIST = projects/README.md                           \
+ projects/build-openssl.bat                            \
+ projects/build-wolfssl.bat                            \
+ projects/checksrc.bat                                 \
+ projects/Windows/VC10/curl-all.sln                    \
+ projects/Windows/VC10/lib/libcurl.sln                 \
+ projects/Windows/VC10/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC10/src/curl.sln                    \
+ projects/Windows/VC10/src/curl.vcxproj.filters        \
+ projects/Windows/VC11/curl-all.sln                    \
+ projects/Windows/VC11/lib/libcurl.sln                 \
+ projects/Windows/VC11/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC11/src/curl.sln                    \
+ projects/Windows/VC11/src/curl.vcxproj.filters        \
+ projects/Windows/VC12/curl-all.sln                    \
+ projects/Windows/VC12/lib/libcurl.sln                 \
+ projects/Windows/VC12/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC12/src/curl.sln                    \
+ projects/Windows/VC12/src/curl.vcxproj.filters        \
+ projects/Windows/VC14/curl-all.sln                    \
+ projects/Windows/VC14/lib/libcurl.sln                 \
+ projects/Windows/VC14/lib/libcurl.vcxproj.filters     \
+ projects/Windows/VC14/src/curl.sln                    \
+ projects/Windows/VC14/src/curl.vcxproj.filters        \
+ projects/Windows/VC14.10/curl-all.sln                 \
+ projects/Windows/VC14.10/lib/libcurl.sln              \
+ projects/Windows/VC14.10/lib/libcurl.vcxproj.filters  \
+ projects/Windows/VC14.10/src/curl.sln                 \
+ projects/Windows/VC14.10/src/curl.vcxproj.filters     \
+ projects/Windows/VC14.30/curl-all.sln                 \
+ projects/Windows/VC14.30/lib/libcurl.sln              \
+ projects/Windows/VC14.30/lib/libcurl.vcxproj.filters  \
+ projects/Windows/VC14.30/src/curl.sln                 \
+ projects/Windows/VC14.30/src/curl.vcxproj.filters     \
+ projects/generate.bat                                 \
+ projects/wolfssl_options.h                            \
+ projects/wolfssl_override.props
+
+WINBUILD_DIST = winbuild/README.md winbuild/gen_resp_file.bat \
+ winbuild/MakefileBuild.vc winbuild/Makefile.vc
+
+PLAN9_DIST = plan9/include/mkfile \
+ plan9/include/mkfile             \
+ plan9/mkfile.proto               \
+ plan9/mkfile                     \
+ plan9/README                     \
+ plan9/lib/mkfile.inc             \
+ plan9/lib/mkfile                 \
+ plan9/src/mkfile.inc             \
+ plan9/src/mkfile
+
+EXTRA_DIST = CHANGES COPYING maketgz Makefile.dist curl-config.in            \
+ RELEASE-NOTES buildconf libcurl.pc.in MacOSX-Framework $(CMAKE_DIST)        \
+ $(VC_DIST) $(WINBUILD_DIST) $(PLAN9_DIST) lib/libcurl.vers.in buildconf.bat
+
+CLEANFILES = $(VC10_LIBVCXPROJ) $(VC10_SRCVCXPROJ) $(VC11_LIBVCXPROJ)        \
+ $(VC11_SRCVCXPROJ) $(VC12_LIBVCXPROJ) $(VC12_SRCVCXPROJ) $(VC14_LIBVCXPROJ) \
+ $(VC14_SRCVCXPROJ) $(VC14_10_LIBVCXPROJ) $(VC14_10_SRCVCXPROJ)              \
+ $(VC14_30_LIBVCXPROJ) $(VC14_30_SRCVCXPROJ)
+
+bin_SCRIPTS = curl-config
+SUBDIRS = lib src
+DIST_SUBDIRS = $(SUBDIRS) tests packages scripts include docs
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libcurl.pc
+LIB_VAUTH_CFILES = \
+  vauth/cleartext.c     \
+  vauth/cram.c          \
+  vauth/digest.c        \
+  vauth/digest_sspi.c   \
+  vauth/gsasl.c         \
+  vauth/krb5_gssapi.c   \
+  vauth/krb5_sspi.c     \
+  vauth/ntlm.c          \
+  vauth/ntlm_sspi.c     \
+  vauth/oauth2.c        \
+  vauth/spnego_gssapi.c \
+  vauth/spnego_sspi.c   \
+  vauth/vauth.c
+
+LIB_VAUTH_HFILES = \
+  vauth/digest.h        \
+  vauth/ntlm.h          \
+  vauth/vauth.h
+
+LIB_VTLS_CFILES = \
+  vtls/bearssl.c            \
+  vtls/gskit.c              \
+  vtls/gtls.c               \
+  vtls/hostcheck.c          \
+  vtls/keylog.c             \
+  vtls/mbedtls.c            \
+  vtls/mbedtls_threadlock.c \
+  vtls/nss.c                \
+  vtls/openssl.c            \
+  vtls/rustls.c             \
+  vtls/schannel.c           \
+  vtls/schannel_verify.c    \
+  vtls/sectransp.c          \
+  vtls/vtls.c               \
+  vtls/wolfssl.c            \
+  vtls/x509asn1.c
+
+LIB_VTLS_HFILES = \
+  vtls/bearssl.h            \
+  vtls/gskit.h              \
+  vtls/gtls.h               \
+  vtls/hostcheck.h          \
+  vtls/keylog.h             \
+  vtls/mbedtls.h            \
+  vtls/mbedtls_threadlock.h \
+  vtls/nssg.h               \
+  vtls/openssl.h            \
+  vtls/rustls.h             \
+  vtls/schannel.h           \
+  vtls/sectransp.h          \
+  vtls/vtls.h               \
+  vtls/wolfssl.h            \
+  vtls/x509asn1.h
+
+LIB_VQUIC_CFILES = \
+  vquic/msh3.c   \
+  vquic/ngtcp2.c   \
+  vquic/quiche.c   \
+  vquic/vquic.c
+
+LIB_VQUIC_HFILES = \
+  vquic/msh3.h   \
+  vquic/ngtcp2.h   \
+  vquic/quiche.h   \
+  vquic/vquic.h
+
+LIB_VSSH_CFILES = \
+  vssh/libssh.c    \
+  vssh/libssh2.c   \
+  vssh/wolfssh.c
+
+LIB_VSSH_HFILES = \
+  vssh/ssh.h
+
+LIB_CFILES = \
+  altsvc.c           \
+  amigaos.c          \
+  asyn-ares.c        \
+  asyn-thread.c      \
+  base64.c           \
+  bufref.c           \
+  c-hyper.c          \
+  conncache.c        \
+  connect.c          \
+  content_encoding.c \
+  cookie.c           \
+  curl_addrinfo.c    \
+  curl_ctype.c       \
+  curl_des.c         \
+  curl_endian.c      \
+  curl_fnmatch.c     \
+  curl_get_line.c    \
+  curl_gethostname.c \
+  curl_gssapi.c      \
+  curl_memrchr.c     \
+  curl_multibyte.c   \
+  curl_ntlm_core.c   \
+  curl_ntlm_wb.c     \
+  curl_path.c        \
+  curl_range.c       \
+  curl_rtmp.c        \
+  curl_sasl.c        \
+  curl_sspi.c        \
+  curl_threads.c     \
+  dict.c             \
+  doh.c              \
+  dotdot.c           \
+  dynbuf.c           \
+  easy.c             \
+  easygetopt.c       \
+  easyoptions.c      \
+  escape.c           \
+  file.c             \
+  fileinfo.c         \
+  formdata.c         \
+  ftp.c              \
+  ftplistparser.c    \
+  getenv.c           \
+  getinfo.c          \
+  gopher.c           \
+  h2h3.c             \
+  hash.c             \
+  headers.c          \
+  hmac.c             \
+  hostasyn.c         \
+  hostip.c           \
+  hostip4.c          \
+  hostip6.c          \
+  hostsyn.c          \
+  hsts.c             \
+  http.c             \
+  http2.c            \
+  http_chunks.c      \
+  http_digest.c      \
+  http_negotiate.c   \
+  http_ntlm.c        \
+  http_proxy.c       \
+  http_aws_sigv4.c   \
+  idn_win32.c        \
+  if2ip.c            \
+  imap.c             \
+  inet_ntop.c        \
+  inet_pton.c        \
+  krb5.c             \
+  ldap.c             \
+  llist.c            \
+  md4.c              \
+  md5.c              \
+  memdebug.c         \
+  mime.c             \
+  mprintf.c          \
+  mqtt.c             \
+  multi.c            \
+  netrc.c            \
+  nonblock.c         \
+  openldap.c         \
+  parsedate.c        \
+  pingpong.c         \
+  pop3.c             \
+  progress.c         \
+  psl.c              \
+  rand.c             \
+  rename.c           \
+  rtsp.c             \
+  select.c           \
+  sendf.c            \
+  setopt.c           \
+  sha256.c           \
+  share.c            \
+  slist.c            \
+  smb.c              \
+  smtp.c             \
+  socketpair.c       \
+  socks.c            \
+  socks_gssapi.c     \
+  socks_sspi.c       \
+  speedcheck.c       \
+  splay.c            \
+  strcase.c          \
+  strdup.c           \
+  strerror.c         \
+  strtok.c           \
+  strtoofft.c        \
+  system_win32.c     \
+  telnet.c           \
+  tftp.c             \
+  timediff.c         \
+  timeval.c          \
+  transfer.c         \
+  url.c              \
+  urlapi.c           \
+  version.c          \
+  version_win32.c    \
+  warnless.c         \
+  wildcard.c
+
+LIB_HFILES = \
+  altsvc.h           \
+  amigaos.h          \
+  arpa_telnet.h      \
+  asyn.h             \
+  bufref.h           \
+  c-hyper.h          \
+  conncache.h        \
+  connect.h          \
+  content_encoding.h \
+  cookie.h           \
+  curl_addrinfo.h    \
+  curl_base64.h      \
+  curl_ctype.h       \
+  curl_des.h         \
+  curl_endian.h      \
+  curl_fnmatch.h     \
+  curl_get_line.h    \
+  curl_gethostname.h \
+  curl_gssapi.h      \
+  curl_hmac.h        \
+  curl_krb5.h        \
+  curl_ldap.h        \
+  curl_md4.h         \
+  curl_md5.h         \
+  curl_memory.h      \
+  curl_memrchr.h     \
+  curl_multibyte.h   \
+  curl_ntlm_core.h   \
+  curl_ntlm_wb.h     \
+  curl_path.h        \
+  curl_printf.h      \
+  curl_range.h       \
+  curl_rtmp.h        \
+  curl_sasl.h        \
+  curl_setup.h       \
+  curl_setup_once.h  \
+  curl_sha256.h      \
+  curl_sspi.h        \
+  curl_threads.h     \
+  curlx.h            \
+  dict.h             \
+  doh.h              \
+  dotdot.h           \
+  dynbuf.h           \
+  easyif.h           \
+  easyoptions.h      \
+  escape.h           \
+  file.h             \
+  fileinfo.h         \
+  formdata.h         \
+  ftp.h              \
+  ftplistparser.h    \
+  getinfo.h          \
+  gopher.h           \
+  h2h3.h             \
+  hash.h             \
+  headers.h          \
+  hostip.h           \
+  hsts.h             \
+  http.h             \
+  http2.h            \
+  http_chunks.h      \
+  http_digest.h      \
+  http_negotiate.h   \
+  http_ntlm.h        \
+  http_proxy.h       \
+  http_aws_sigv4.h   \
+  if2ip.h            \
+  imap.h             \
+  inet_ntop.h        \
+  inet_pton.h        \
+  llist.h            \
+  memdebug.h         \
+  mime.h             \
+  mqtt.h             \
+  multihandle.h      \
+  multiif.h          \
+  netrc.h            \
+  nonblock.h         \
+  parsedate.h        \
+  pingpong.h         \
+  pop3.h             \
+  progress.h         \
+  psl.h              \
+  quic.h             \
+  rand.h             \
+  rename.h           \
+  rtsp.h             \
+  select.h           \
+  sendf.h            \
+  setopt.h           \
+  setup-vms.h        \
+  share.h            \
+  sigpipe.h          \
+  slist.h            \
+  smb.h              \
+  smtp.h             \
+  sockaddr.h         \
+  socketpair.h       \
+  socks.h            \
+  speedcheck.h       \
+  splay.h            \
+  strcase.h          \
+  strdup.h           \
+  strerror.h         \
+  strtok.h           \
+  strtoofft.h        \
+  system_win32.h     \
+  telnet.h           \
+  tftp.h             \
+  timediff.h         \
+  timeval.h          \
+  transfer.h         \
+  url.h              \
+  urlapi-int.h       \
+  urldata.h          \
+  version_win32.h    \
+  warnless.h         \
+  wildcard.h
+
+LIB_RCFILES = libcurl.rc
+CSOURCES = $(LIB_CFILES) $(LIB_VAUTH_CFILES) $(LIB_VTLS_CFILES) \
+  $(LIB_VQUIC_CFILES) $(LIB_VSSH_CFILES)
+
+HHEADERS = $(LIB_HFILES) $(LIB_VAUTH_HFILES) $(LIB_VTLS_HFILES) \
+  $(LIB_VQUIC_HFILES) $(LIB_VSSH_HFILES)
+
+
+# libcurl has sources that provide functions named curlx_* that aren't part of
+# the official API, but we re-use the code here to avoid duplication.
+CURLX_CFILES = \
+  ../lib/strtoofft.c \
+  ../lib/timediff.c \
+  ../lib/nonblock.c \
+  ../lib/warnless.c \
+  ../lib/curl_ctype.c \
+  ../lib/curl_multibyte.c \
+  ../lib/version_win32.c \
+  ../lib/dynbuf.c
+
+CURLX_HFILES = \
+  ../lib/curl_setup.h \
+  ../lib/strtoofft.h \
+  ../lib/timediff.h \
+  ../lib/nonblock.h \
+  ../lib/warnless.h \
+  ../lib/curl_ctype.h \
+  ../lib/curl_multibyte.h \
+  ../lib/version_win32.h \
+  ../lib/dynbuf.h
+
+CURL_CFILES = \
+  slist_wc.c \
+  tool_binmode.c \
+  tool_bname.c \
+  tool_cb_dbg.c \
+  tool_cb_hdr.c \
+  tool_cb_prg.c \
+  tool_cb_rea.c \
+  tool_cb_see.c \
+  tool_cb_wrt.c \
+  tool_cfgable.c \
+  tool_dirhie.c \
+  tool_doswin.c \
+  tool_easysrc.c \
+  tool_filetime.c \
+  tool_findfile.c \
+  tool_formparse.c \
+  tool_getparam.c \
+  tool_getpass.c \
+  tool_help.c \
+  tool_helpers.c \
+  tool_hugehelp.c \
+  tool_libinfo.c \
+  tool_listhelp.c \
+  tool_main.c \
+  tool_msgs.c \
+  tool_operate.c \
+  tool_operhlp.c \
+  tool_panykey.c \
+  tool_paramhlp.c \
+  tool_parsecfg.c \
+  tool_progress.c \
+  tool_strdup.c \
+  tool_setopt.c \
+  tool_sleep.c \
+  tool_urlglob.c \
+  tool_util.c \
+  tool_vms.c \
+  tool_writeout.c \
+  tool_writeout_json.c \
+  tool_xattr.c
+
+CURL_HFILES = \
+  slist_wc.h \
+  tool_binmode.h \
+  tool_bname.h \
+  tool_cb_dbg.h \
+  tool_cb_hdr.h \
+  tool_cb_prg.h \
+  tool_cb_rea.h \
+  tool_cb_see.h \
+  tool_cb_wrt.h \
+  tool_cfgable.h \
+  tool_dirhie.h \
+  tool_doswin.h \
+  tool_easysrc.h \
+  tool_filetime.h \
+  tool_findfile.h \
+  tool_formparse.h \
+  tool_getparam.h \
+  tool_getpass.h \
+  tool_help.h \
+  tool_helpers.h \
+  tool_hugehelp.h \
+  tool_libinfo.h \
+  tool_main.h \
+  tool_msgs.h \
+  tool_operate.h \
+  tool_operhlp.h \
+  tool_panykey.h \
+  tool_paramhlp.h \
+  tool_parsecfg.h \
+  tool_progress.h \
+  tool_sdecls.h \
+  tool_setopt.h \
+  tool_setup.h \
+  tool_sleep.h \
+  tool_strdup.h \
+  tool_urlglob.h \
+  tool_util.h \
+  tool_version.h \
+  tool_vms.h \
+  tool_writeout.h \
+  tool_writeout_json.h \
+  tool_xattr.h
+
+CURL_RCFILES = curl.rc
+
+# curl_SOURCES is special and gets assigned in src/Makefile.am
+CURL_FILES = $(CURL_CFILES) $(CURLX_CFILES) $(CURL_HFILES)
+all: all-recursive
+
+.SUFFIXES:
+am--refresh: Makefile
+	@:
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/lib/Makefile.inc $(srcdir)/src/Makefile.inc $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \
+	      $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    echo ' $(SHELL) ./config.status'; \
+	    $(SHELL) ./config.status;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__maybe_remake_depfiles);; \
+	esac;
+$(srcdir)/lib/Makefile.inc $(srcdir)/src/Makefile.inc $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	$(SHELL) ./config.status --recheck
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	$(am__cd) $(srcdir) && $(AUTOCONF)
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	$(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+$(am__aclocal_m4_deps):
+curl-config: $(top_builddir)/config.status $(srcdir)/curl-config.in
+	cd $(top_builddir) && $(SHELL) ./config.status $@
+libcurl.pc: $(top_builddir)/config.status $(srcdir)/libcurl.pc.in
+	cd $(top_builddir) && $(SHELL) ./config.status $@
+install-binSCRIPTS: $(bin_SCRIPTS)
+	@$(NORMAL_INSTALL)
+	@list='$(bin_SCRIPTS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  if test -f "$$d$$p"; then echo "$$d$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n' \
+	    -e 'h;s|.*|.|' \
+	    -e 'p;x;s,.*/,,;$(transform)' | sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1; } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) { files[d] = files[d] " " $$1; \
+	      if (++n[d] == $(am__install_max)) { \
+		print "f", d, files[d]; n[d] = 0; files[d] = "" } } \
+	    else { print "f", d "/" $$4, $$1 } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	     if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	     test -z "$$files" || { \
+	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	       $(INSTALL_SCRIPT) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	     } \
+	; done
+
+uninstall-binSCRIPTS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_SCRIPTS)'; test -n "$(bindir)" || exit 0; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	       sed -e 's,.*/,,;$(transform)'`; \
+	dir='$(DESTDIR)$(bindir)'; $(am__uninstall_files_from_dir)
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+distclean-libtool:
+	-rm -f libtool config.lt
+install-pkgconfigDATA: $(pkgconfig_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgconfigdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(pkgconfigdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(pkgconfigdir)" || exit $$?; \
+	done
+
+uninstall-pkgconfigDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(pkgconfigdir)'; $(am__uninstall_files_from_dir)
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
+# To change the values of 'make' variables: instead of editing Makefiles,
+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
+	@fail=; \
+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
+	fi; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-recursive
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscope: cscope.files
+	test ! -s cscope.files \
+	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
+clean-cscope:
+	-rm -f cscope.files
+cscope.files: clean-cscope cscopelist
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	$(am__remove_distdir)
+	test -d "$(distdir)" || mkdir "$(distdir)"
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	$(MAKE) $(AM_MAKEFLAGS) \
+	  top_distdir="$(top_distdir)" distdir="$(distdir)" \
+	  dist-hook
+	-test -n "$(am__skip_mode_fix)" \
+	|| find "$(distdir)" -type d ! -perm -755 \
+		-exec chmod u+rwx,go+rx {} \; -o \
+	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
+	|| chmod -R a+r "$(distdir)"
+dist-gzip: distdir
+	tardir=$(distdir) && $(am__tar) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).tar.gz
+	$(am__post_remove_distdir)
+
+dist-bzip2: distdir
+	tardir=$(distdir) && $(am__tar) | BZIP2=$${BZIP2--9} bzip2 -c >$(distdir).tar.bz2
+	$(am__post_remove_distdir)
+
+dist-lzip: distdir
+	tardir=$(distdir) && $(am__tar) | lzip -c $${LZIP_OPT--9} >$(distdir).tar.lz
+	$(am__post_remove_distdir)
+
+dist-xz: distdir
+	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
+	$(am__post_remove_distdir)
+
+dist-zstd: distdir
+	tardir=$(distdir) && $(am__tar) | zstd -c $${ZSTD_CLEVEL-$${ZSTD_OPT--19}} >$(distdir).tar.zst
+	$(am__post_remove_distdir)
+
+dist-tarZ: distdir
+	@echo WARNING: "Support for distribution archives compressed with" \
+		       "legacy program 'compress' is deprecated." >&2
+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
+	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
+	$(am__post_remove_distdir)
+
+dist-shar: distdir
+	@echo WARNING: "Support for shar distribution archives is" \
+	               "deprecated." >&2
+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
+	shar $(distdir) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).shar.gz
+	$(am__post_remove_distdir)
+
+dist-zip: distdir
+	-rm -f $(distdir).zip
+	zip -rq $(distdir).zip $(distdir)
+	$(am__post_remove_distdir)
+
+dist dist-all:
+	$(MAKE) $(AM_MAKEFLAGS) $(DIST_TARGETS) am__post_remove_distdir='@:'
+	$(am__post_remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration.  Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+	case '$(DIST_ARCHIVES)' in \
+	*.tar.gz*) \
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).tar.gz | $(am__untar) ;;\
+	*.tar.bz2*) \
+	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
+	*.tar.lz*) \
+	  lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
+	*.tar.xz*) \
+	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+	*.shar.gz*) \
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	*.tar.zst*) \
+	  zstd -dc $(distdir).tar.zst | $(am__untar) ;;\
+	esac
+	chmod -R a-w $(distdir)
+	chmod u+w $(distdir)
+	mkdir $(distdir)/_build $(distdir)/_build/sub $(distdir)/_inst
+	chmod a-w $(distdir)
+	test -d $(distdir)/_build || exit 0; \
+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && am__cwd=`pwd` \
+	  && $(am__cd) $(distdir)/_build/sub \
+	  && ../../configure \
+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	    --srcdir=../.. --prefix="$$dc_install_base" \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) $(AM_DISTCHECK_DVI_TARGET) \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+	        distuninstallcheck \
+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
+	  && cd "$$am__cwd" \
+	  || exit 1
+	$(am__post_remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
+distuninstallcheck:
+	@test -n '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
+	       exit 1; } >&2
+check-am: all-am
+check: check-recursive
+all-am: Makefile $(SCRIPTS) $(DATA)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(bindir)" "$(DESTDIR)$(pkgconfigdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-libtool \
+	distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-pkgconfigDATA
+	@$(NORMAL_INSTALL)
+	$(MAKE) $(AM_MAKEFLAGS) install-data-hook
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am: install-binSCRIPTS
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf $(top_srcdir)/autom4te.cache
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-binSCRIPTS uninstall-pkgconfigDATA
+	@$(NORMAL_INSTALL)
+	$(MAKE) $(AM_MAKEFLAGS) uninstall-hook
+.MAKE: $(am__recursive_targets) install-am install-data-am \
+	install-strip uninstall-am
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
+	am--refresh check check-am clean clean-cscope clean-generic \
+	clean-libtool cscope cscopelist-am ctags ctags-am dist \
+	dist-all dist-bzip2 dist-gzip dist-hook dist-lzip dist-shar \
+	dist-tarZ dist-xz dist-zip dist-zstd distcheck distclean \
+	distclean-generic distclean-libtool distclean-tags \
+	distcleancheck distdir distuninstallcheck dvi dvi-am html \
+	html-am info info-am install install-am install-binSCRIPTS \
+	install-data install-data-am install-data-hook install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-pkgconfigDATA install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-binSCRIPTS uninstall-hook \
+	uninstall-pkgconfigDATA
+
+.PRECIOUS: Makefile
+
+
+# List of files required to generate VC IDE .dsp, .vcproj and .vcxproj files
+
+dist-hook:
+	rm -rf $(top_builddir)/tests/log
+	find $(distdir) -name "*.dist" -exec rm {} \;
+	(distit=`find $(srcdir) -name "*.dist" | grep -v ./ares/`; \
+	for file in $$distit; do \
+	  strip=`echo $$file | sed -e s/^$(srcdir)// -e s/\.dist//`; \
+	  cp -p $$file $(distdir)$$strip; \
+	done)
+
+html:
+	cd docs && $(MAKE) html
+
+pdf:
+	cd docs && $(MAKE) pdf
+
+check: test examples check-docs
+
+@CROSSCOMPILING_TRUE@test-full: test
+@CROSSCOMPILING_TRUE@test-torture: test
+
+@CROSSCOMPILING_TRUE@test:
+@CROSSCOMPILING_TRUE@	@echo "NOTICE: we can't run the tests when cross-compiling!"
+
+@CROSSCOMPILING_FALSE@test:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all quiet-test)
+
+@CROSSCOMPILING_FALSE@test-full:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all full-test)
+
+@CROSSCOMPILING_FALSE@test-nonflaky:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all nonflaky-test)
+
+@CROSSCOMPILING_FALSE@test-torture:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all torture-test)
+
+@CROSSCOMPILING_FALSE@test-event:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all event-test)
+
+@CROSSCOMPILING_FALSE@test-am:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all am-test)
+
+@CROSSCOMPILING_FALSE@test-ci:
+@CROSSCOMPILING_FALSE@	@(cd tests; $(MAKE) all ci-test)
+
+examples:
+	@(cd docs/examples; $(MAKE) check)
+
+check-docs:
+	@(cd docs/libcurl; $(MAKE) check)
+
+# Build source and binary rpms. For rpm-3.0 and above, the ~/.rpmmacros
+# must contain the following line:
+# %_topdir /home/loic/local/rpm
+# and that /home/loic/local/rpm contains the directory SOURCES, BUILD etc.
+#
+# cd /home/loic/local/rpm ; mkdir -p SOURCES BUILD RPMS/i386 SPECS SRPMS
+#
+# If additional configure flags are needed to build the package, add the
+# following in ~/.rpmmacros
+# %configure CFLAGS="%{optflags}" ./configure %{_target_platform} --prefix=%{_prefix} ${AM_CONFIGFLAGS}
+# and run make rpm in the following way:
+# AM_CONFIGFLAGS='--with-uri=/home/users/loic/local/RedHat-6.2' make rpm
+#
+
+rpms:
+	$(MAKE) RPMDIST=curl rpm
+	$(MAKE) RPMDIST=curl-ssl rpm
+
+rpm:
+	RPM_TOPDIR=`rpm --showrc | $(PERL) -n -e 'print if(s/.*_topdir\s+(.*)/$$1/)'` ; \
+	cp $(srcdir)/packages/Linux/RPM/$(RPMDIST).spec $$RPM_TOPDIR/SPECS ; \
+	cp $(PACKAGE)-$(VERSION).tar.gz $$RPM_TOPDIR/SOURCES ; \
+	rpm -ba --clean --rmsource $$RPM_TOPDIR/SPECS/$(RPMDIST).spec ; \
+	mv $$RPM_TOPDIR/RPMS/i386/$(RPMDIST)-*.rpm . ; \
+	mv $$RPM_TOPDIR/SRPMS/$(RPMDIST)-*.src.rpm .
+
+#
+# Build a Solaris pkgadd format file
+# run 'make pkgadd' once you've done './configure' and 'make' to make a Solaris pkgadd format
+# file (which ends up back in this directory).
+# The pkgadd file is in 'pkgtrans' format, so to install on Solaris, do
+# pkgadd -d ./HAXXcurl-*
+#
+
+# gak - libtool requires an absolute directory, hence the pwd below...
+pkgadd:
+	umask 022 ; \
+	$(MAKE) install DESTDIR=`/bin/pwd`/packages/Solaris/root ; \
+	cat COPYING > $(srcdir)/packages/Solaris/copyright ; \
+	cd $(srcdir)/packages/Solaris && $(MAKE) package
+
+#
+# Build a cygwin binary tarball installation file
+# resulting .tar.bz2 file will end up at packages/Win32/cygwin
+cygwinbin:
+	$(MAKE) -C packages/Win32/cygwin cygwinbin
+
+# We extend the standard install with a custom hook:
+install-data-hook:
+	(cd include && $(MAKE) install)
+	(cd docs && $(MAKE) install)
+	(cd docs/libcurl && $(MAKE) install)
+
+# We extend the standard uninstall with a custom hook:
+uninstall-hook:
+	(cd include && $(MAKE) uninstall)
+	(cd docs && $(MAKE) uninstall)
+	(cd docs/libcurl && $(MAKE) uninstall)
+
+ca-bundle: scripts/mk-ca-bundle.pl
+	@echo "generating a fresh ca-bundle.crt"
+	@perl $< -b -l -u lib/ca-bundle.crt
+
+ca-firefox: scripts/firefox-db2pem.sh
+	@echo "generating a fresh ca-bundle.crt"
+	$< lib/ca-bundle.crt
+
+checksrc:
+	(cd lib && $(MAKE) checksrc)
+	(cd src && $(MAKE) checksrc)
+	(cd tests && $(MAKE) checksrc)
+	(cd include/curl && $(MAKE) checksrc)
+	(cd docs/examples && $(MAKE) checksrc)
+	(cd packages && $(MAKE) checksrc)
+
+.PHONY: vc-ide
+
+vc-ide: $(VC10_LIBVCXPROJ_DEPS) $(VC10_SRCVCXPROJ_DEPS)                  \
+ $(VC11_LIBVCXPROJ_DEPS) $(VC11_SRCVCXPROJ_DEPS) $(VC12_LIBVCXPROJ_DEPS) \
+ $(VC12_SRCVCXPROJ_DEPS) $(VC14_LIBVCXPROJ_DEPS) $(VC14_SRCVCXPROJ_DEPS) \
+ $(VC14_10_LIBVCXPROJ_DEPS) $(VC14_10_SRCVCXPROJ_DEPS)                   \
+ $(VC14_30_LIBVCXPROJ_DEPS) $(VC14_30_SRCVCXPROJ_DEPS)
+	@(win32_lib_srcs='$(LIB_CFILES)'; \
+	win32_lib_hdrs='$(LIB_HFILES) config-win32.h'; \
+	win32_lib_rc='$(LIB_RCFILES)'; \
+	win32_lib_vauth_srcs='$(LIB_VAUTH_CFILES)'; \
+	win32_lib_vauth_hdrs='$(LIB_VAUTH_HFILES)'; \
+	win32_lib_vquic_srcs='$(LIB_VQUIC_CFILES)'; \
+	win32_lib_vquic_hdrs='$(LIB_VQUIC_HFILES)'; \
+	win32_lib_vssh_srcs='$(LIB_VSSH_CFILES)'; \
+	win32_lib_vssh_hdrs='$(LIB_VSSH_HFILES)'; \
+	win32_lib_vtls_srcs='$(LIB_VTLS_CFILES)'; \
+	win32_lib_vtls_hdrs='$(LIB_VTLS_HFILES)'; \
+	win32_src_srcs='$(CURL_CFILES)'; \
+	win32_src_hdrs='$(CURL_HFILES)'; \
+	win32_src_rc='$(CURL_RCFILES)'; \
+	win32_src_x_srcs='$(CURLX_CFILES)'; \
+	win32_src_x_hdrs='$(CURLX_HFILES) ../lib/config-win32.h'; \
+	\
+	sorted_lib_srcs=`for file in $$win32_lib_srcs; do echo $$file; done | sort`; \
+	sorted_lib_hdrs=`for file in $$win32_lib_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_srcs=`for file in $$win32_lib_vauth_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vauth_hdrs=`for file in $$win32_lib_vauth_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vquic_srcs=`for file in $$win32_lib_vquic_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vquic_hdrs=`for file in $$win32_lib_vquic_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vssh_srcs=`for file in $$win32_lib_vssh_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vssh_hdrs=`for file in $$win32_lib_vssh_hdrs; do echo $$file; done | sort`; \
+	sorted_lib_vtls_srcs=`for file in $$win32_lib_vtls_srcs; do echo $$file; done | sort`; \
+	sorted_lib_vtls_hdrs=`for file in $$win32_lib_vtls_hdrs; do echo $$file; done | sort`; \
+	sorted_src_srcs=`for file in $$win32_src_srcs; do echo $$file; done | sort`; \
+	sorted_src_hdrs=`for file in $$win32_src_hdrs; do echo $$file; done | sort`; \
+	sorted_src_x_srcs=`for file in $$win32_src_x_srcs; do echo $$file; done | sort`; \
+	sorted_src_x_hdrs=`for file in $$win32_src_x_hdrs; do echo $$file; done | sort`; \
+	\
+	awk_code='\
+function gen_element(type, dir, file)\
+{\
+  sub(/vauth\//, "", file);\
+  sub(/vquic\//, "", file);\
+  sub(/vssh\//, "", file);\
+  sub(/vtls\//, "", file);\
+\
+  spaces="    ";\
+  if(dir == "lib\\vauth" ||\
+     dir == "lib\\vquic" ||\
+     dir == "lib\\vssh"  ||\
+     dir == "lib\\vtls")\
+    tabs="				";\
+  else\
+    tabs="			";\
+\
+  if(type == "dsp") {\
+    printf("# Begin Source File\r\n");\
+    printf("\r\n");\
+    printf("SOURCE=..\\..\\..\\..\\%s\\%s\r\n", dir, file);\
+    printf("# End Source File\r\n");\
+  }\
+  else if(type == "vcproj1") {\
+    printf("%s\r\n",\
+           tabs, dir, file);\
+    printf("%s\r\n", tabs);\
+  }\
+  else if(type == "vcproj2") {\
+    printf("%s\r\n", tabs);\
+    printf("%s\r\n", tabs);\
+  }\
+  else if(type == "vcxproj") {\
+    i = index(file, ".");\
+    ext = substr(file, i == 0 ? 0 : i + 1);\
+\
+    if(ext == "c")\
+      printf("%s\r\n",\
+             spaces, dir, file);\
+    else if(ext == "h")\
+      printf("%s\r\n",\
+             spaces, dir, file);\
+    else if(ext == "rc")\
+      printf("%s\r\n",\
+      spaces, dir, file);\
+  }\
+}\
+\
+{\
+\
+  if($$0 == "CURL_LIB_C_FILES") {\
+    split(lib_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_H_FILES") {\
+    split(lib_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_RC_FILES") {\
+    split(lib_rc, arr);\
+    for(val in arr) gen_element(proj_type, "lib", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VAUTH_C_FILES") {\
+    split(lib_vauth_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VAUTH_H_FILES") {\
+    split(lib_vauth_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vauth", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VQUIC_C_FILES") {\
+    split(lib_vquic_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vquic", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VQUIC_H_FILES") {\
+    split(lib_vquic_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vquic", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VSSH_C_FILES") {\
+    split(lib_vssh_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vssh", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VSSH_H_FILES") {\
+    split(lib_vssh_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vssh", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VTLS_C_FILES") {\
+    split(lib_vtls_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vtls", arr[val]);\
+  }\
+  else if($$0 == "CURL_LIB_VTLS_H_FILES") {\
+    split(lib_vtls_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "lib\\vtls", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_C_FILES") {\
+    split(src_srcs, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_H_FILES") {\
+    split(src_hdrs, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_RC_FILES") {\
+    split(src_rc, arr);\
+    for(val in arr) gen_element(proj_type, "src", arr[val]);\
+  }\
+  else if($$0 == "CURL_SRC_X_C_FILES") {\
+    split(src_x_srcs, arr);\
+    for(val in arr) {\
+      sub(/..\/lib\//, "", arr[val]);\
+      gen_element(proj_type, "lib", arr[val]);\
+    }\
+  }\
+  else if($$0 == "CURL_SRC_X_H_FILES") {\
+    split(src_x_hdrs, arr);\
+    for(val in arr) {\
+      sub(/..\/lib\//, "", arr[val]);\
+      gen_element(proj_type, "lib", arr[val]);\
+    }\
+  }\
+  else\
+    printf("%s\r\n", $$0);\
+}';\
+	\
+	echo "generating '$(VC10_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC10_LIBTMPL) > $(VC10_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC10_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC10_SRCTMPL) > $(VC10_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC11_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC11_LIBTMPL) > $(VC11_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC11_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC11_SRCTMPL) > $(VC11_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC12_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC12_LIBTMPL) > $(VC12_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC12_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC12_SRCTMPL) > $(VC12_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_LIBTMPL) > $(VC14_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_SRCTMPL) > $(VC14_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_10_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_10_LIBTMPL) > $(VC14_10_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_10_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_10_SRCTMPL) > $(VC14_10_SRCVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_30_LIBVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v lib_srcs="$$sorted_lib_srcs" \
+		-v lib_hdrs="$$sorted_lib_hdrs" \
+		-v lib_rc="$$win32_lib_rc" \
+		-v lib_vauth_srcs="$$sorted_lib_vauth_srcs" \
+		-v lib_vauth_hdrs="$$sorted_lib_vauth_hdrs" \
+		-v lib_vquic_srcs="$$sorted_lib_vquic_srcs" \
+		-v lib_vquic_hdrs="$$sorted_lib_vquic_hdrs" \
+		-v lib_vssh_srcs="$$sorted_lib_vssh_srcs" \
+		-v lib_vssh_hdrs="$$sorted_lib_vssh_hdrs" \
+		-v lib_vtls_srcs="$$sorted_lib_vtls_srcs" \
+		-v lib_vtls_hdrs="$$sorted_lib_vtls_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_30_LIBTMPL) > $(VC14_30_LIBVCXPROJ) || { exit 1; }; \
+	\
+	echo "generating '$(VC14_30_SRCVCXPROJ)'"; \
+	awk -v proj_type=vcxproj \
+		-v src_srcs="$$sorted_src_srcs" \
+		-v src_hdrs="$$sorted_src_hdrs" \
+		-v src_rc="$$win32_src_rc" \
+		-v src_x_srcs="$$sorted_src_x_srcs" \
+		-v src_x_hdrs="$$sorted_src_x_hdrs" \
+		"$$awk_code" $(srcdir)/$(VC14_30_SRCTMPL) > $(VC14_30_SRCVCXPROJ) || { exit 1; };)
+
+tidy:
+	(cd src && $(MAKE) tidy)
+	(cd lib && $(MAKE) tidy)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/curl/README b/curl/README
new file mode 100644
index 0000000..9705f41
--- /dev/null
+++ b/curl/README
@@ -0,0 +1,55 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+README
+
+  Curl is a command line tool for transferring data specified with URL
+  syntax. Find out how to use curl by reading the curl.1 man page or the
+  MANUAL document. Find out how to install Curl by reading the INSTALL
+  document.
+
+  libcurl is the library curl is using to do its job. It is readily
+  available to be used by your software. Read the libcurl.3 man page to
+  learn how!
+
+  You find answers to the most frequent questions we get in the FAQ document.
+
+  Study the COPYING file for distribution terms.
+
+  Those documents and more can be found in the docs/ directory.
+
+CONTACT
+
+  If you have problems, questions, ideas or suggestions, please contact us
+  by posting to a suitable mailing list. See https://curl.se/mail/
+
+  All contributors to the project are listed in the THANKS document.
+
+WEBSITE
+
+  Visit the curl website for the latest news and downloads:
+
+        https://curl.se/
+
+GIT
+
+  To download the very latest source off the GIT server do this:
+
+    git clone https://github.com/curl/curl.git
+
+  (you will get a directory named curl created, filled with the source code)
+
+SECURITY PROBLEMS
+
+  Report suspected security problems via our HackerOne page and not in public!
+
+    https://hackerone.com/curl
+
+NOTICE
+
+  Curl contains pieces of source code that is Copyright (c) 1998, 1999
+  Kungliga Tekniska Högskolan. This notice is included here to comply with the
+  distribution terms.
diff --git a/curl/RELEASE-NOTES b/curl/RELEASE-NOTES
new file mode 100644
index 0000000..5351424
--- /dev/null
+++ b/curl/RELEASE-NOTES
@@ -0,0 +1,107 @@
+curl and libcurl 7.83.1
+
+ Public curl releases:         208
+ Command line options:         247
+ curl_easy_setopt() options:   295
+ Public functions in libcurl:  88
+ Contributors:                 2632
+
+This release includes the following bugfixes:
+
+ o altsvc: fix host name matching for trailing dots [31]
+ o cirrus: Update to FreeBSD 12.3 [24]
+ o cirrus: Use pip for Python packages on FreeBSD [23]
+ o conn: fix typo 'connnection' -> 'connection' in two function names [1]
+ o cookies: make bad_domain() not consider a trailing dot fine [26]
+ o curl: free resource in error path [3]
+ o curl: guard against size_t wraparound in no-clobber code [4]
+ o CURLOPT_DOH_URL.3: mention the known bug [19]
+ o CURLOPT_HSTS*FUNCTION.3: document the involved structs as well [20]
+ o CURLOPT_SSH_AUTH_TYPES.3: fix the default [18]
+ o data/test376: set a proper name
+ o GHA/mbedtls: enabled nghttp2 in the build [11]
+ o gha: build msh3 [5]
+ o gskit: fixed bogus setsockopt calls [17]
+ o gskit: remove unused function set_callback [2]
+ o hsts: ignore trailing dots when comparing hosts names [28]
+ o HTTP-COOKIES: add missing CURLOPT_COOKIESESSION [40]
+ o http: move Curl_allow_auth_to_host() [9]
+ o http_proxy/hyper: handle closed connections [34]
+ o hyper: fix test 357 [32]
+ o Makefile: fix "make ca-firefox" [37]
+ o mbedtls: bail out if rng init fails [14]
+ o mbedtls: fix compile when h2-enabled [12]
+ o mbedtls: fix some error messages
+ o misc: use "autoreconf -fi" instead buildconf [22]
+ o msh3: get msh3 version from MsH3Version [6]
+ o msh3: print boolean value as text representation [10]
+ o msh3: psss remote_port to MsH3ConnectionOpen [7]
+ o ngtcp2: add ca-fallback support for OpenSSL backend [35]
+ o nss: return error if seemingly stuck in a cert loop [30]
+ o openssl: define HAVE_SSL_CTX_SET_EC_CURVES for libressl [8]
+ o post_per_transfer: remove the updated file name [27]
+ o sectransp: bail out if SSLSetPeerDomainName fails [33]
+ o tests/server: declare variable 'reqlogfile' static [39]
+ o tests: fix markdown formatting in README [38]
+ o test{898,974,976}: add 'HTTP proxy' keywords [16]
+ o tls: check more TLS details for connection reuse [25]
+ o url: check SSH config match on connection reuse [21]
+ o urlapi: address (harmless) UndefinedBehavior sanitizer warning [15]
+ o urlapi: reject percent-decoding host name into separator bytes [29]
+ o x509asn1: make do_pubkey handle EC public keys [13]
+
+This release includes the following known bugs:
+
+ o see docs/KNOWN_BUGS (https://curl.se/docs/knownbugs.html)
+
+This release would not have looked like this without help, code, reports and
+advice from friends like these:
+
+  Adam Rosenfield, Axel Chong, Christian Weisgerber, Daniel Gustafsson,
+  Daniel Stenberg, Fabian Keil, Florian Kohnhäuser, Garrett Squire,
+  Harry Sintonen, LigH-de on github, Michael Olbrich, Nick Banks,
+  Patrick Monnerat, Philip H, Prithvi MK, Ray Satiro, Ryan Schmidt,
+  Sergey Markelov, Tatsuhiro Tsujikawa, Yusuke Nakamura
+  (20 contributors)
+
+References to bug reports and discussions on issues:
+
+ [1] = https://curl.se/bug/?i=8759
+ [2] = https://curl.se/bug/?i=8782
+ [3] = https://curl.se/bug/?i=8770
+ [4] = https://curl.se/bug/?i=8771
+ [5] = https://curl.se/bug/?i=8779
+ [6] = https://curl.se/bug/?i=8762
+ [7] = https://curl.se/bug/?i=8762
+ [8] = https://curl.se/mail/lib-2022-04/0059.html
+ [9] = https://curl.se/bug/?i=8772
+ [10] = https://curl.se/bug/?i=8763
+ [11] = https://curl.se/bug/?i=8767
+ [12] = https://curl.se/bug/?i=8766
+ [13] = https://curl.se/bug/?i=8757
+ [14] = https://curl.se/bug/?i=8796
+ [15] = https://curl.se/bug/?i=8797
+ [16] = https://curl.se/bug/?i=8791
+ [17] = https://curl.se/bug/?i=8793
+ [18] = https://curl.se/bug/?i=8792
+ [19] = https://curl.se/bug/?i=8790
+ [20] = https://curl.se/bug/?i=8788
+ [21] = https://curl.se/docs/CVE-2022-27782.html
+ [22] = https://curl.se/bug/?i=8777
+ [23] = https://curl.se/bug/?i=8783
+ [24] = https://curl.se/bug/?i=8783
+ [25] = https://curl.se/docs/CVE-2022-27782.html
+ [26] = https://curl.se/docs/CVE-2022-27779.html
+ [27] = https://curl.se/docs/CVE-2022-27778.html
+ [28] = https://curl.se/docs/CVE-2022-30115.html
+ [29] = https://curl.se/docs/CVE-2022-27780.html
+ [30] = https://curl.se/docs/CVE-2022-27781.html
+ [31] = https://curl.se/bug/?i=8819
+ [32] = https://curl.se/bug/?i=8811
+ [33] = https://curl.se/bug/?i=8798
+ [34] = https://curl.se/bug/?i=8700
+ [35] = https://curl.se/bug/?i=8828
+ [37] = https://curl.se/bug/?i=8804
+ [38] = https://curl.se/bug/?i=8802
+ [39] = https://curl.se/bug/?i=8799
+ [40] = https://curl.se/bug/?i=8795
diff --git a/curl/acinclude.m4 b/curl/acinclude.m4
new file mode 100644
index 0000000..feb9e81
--- /dev/null
+++ b/curl/acinclude.m4
@@ -0,0 +1,2477 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2021, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+#***************************************************************************
+
+dnl CURL_CHECK_DEF (SYMBOL, [INCLUDES], [SILENT])
+dnl -------------------------------------------------
+dnl Use the C preprocessor to find out if the given object-style symbol
+dnl is defined and get its expansion. This macro will not use default
+dnl includes even if no INCLUDES argument is given. This macro will run
+dnl silently when invoked with three arguments. If the expansion would
+dnl result in a set of double-quoted strings the returned expansion will
+dnl actually be a single double-quoted string concatenating all them.
+
+AC_DEFUN([CURL_CHECK_DEF], [
+  AC_REQUIRE([CURL_CPP_P])dnl
+  OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+  AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
+  AS_VAR_PUSHDEF([ac_Def], [curl_cv_def_$1])dnl
+  if test -z "$SED"; then
+    AC_MSG_ERROR([SED not set. Cannot continue without SED being set.])
+  fi
+  if test -z "$GREP"; then
+    AC_MSG_ERROR([GREP not set. Cannot continue without GREP being set.])
+  fi
+  ifelse($3,,[AC_MSG_CHECKING([for preprocessor definition of $1])])
+  tmp_exp=""
+  AC_PREPROC_IFELSE([
+    AC_LANG_SOURCE(
+ifelse($2,,,[$2])[[
+#ifdef $1
+CURL_DEF_TOKEN $1
+#endif
+    ]])
+  ],[
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[[ ]][[ ]]*//' 2>/dev/null | \
+      "$SED" 's/[["]][[ ]]*[["]]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "$1"; then
+      tmp_exp=""
+    fi
+  ])
+  if test -z "$tmp_exp"; then
+    AS_VAR_SET(ac_HaveDef, no)
+    ifelse($3,,[AC_MSG_RESULT([no])])
+  else
+    AS_VAR_SET(ac_HaveDef, yes)
+    AS_VAR_SET(ac_Def, $tmp_exp)
+    ifelse($3,,[AC_MSG_RESULT([$tmp_exp])])
+  fi
+  AS_VAR_POPDEF([ac_Def])dnl
+  AS_VAR_POPDEF([ac_HaveDef])dnl
+  CPPFLAGS=$OLDCPPFLAGS
+])
+
+
+dnl CURL_CHECK_DEF_CC (SYMBOL, [INCLUDES], [SILENT])
+dnl -------------------------------------------------
+dnl Use the C compiler to find out only if the given symbol is defined
+dnl or not, this can not find out its expansion. This macro will not use
+dnl default includes even if no INCLUDES argument is given. This macro
+dnl will run silently when invoked with three arguments.
+
+AC_DEFUN([CURL_CHECK_DEF_CC], [
+  AS_VAR_PUSHDEF([ac_HaveDef], [curl_cv_have_def_$1])dnl
+  ifelse($3,,[AC_MSG_CHECKING([for compiler definition of $1])])
+  AC_COMPILE_IFELSE([
+    AC_LANG_SOURCE(
+ifelse($2,,,[$2])[[
+int main (void)
+{
+#ifdef $1
+  return 0;
+#else
+  force compilation error
+#endif
+}
+    ]])
+  ],[
+    tst_symbol_defined="yes"
+  ],[
+    tst_symbol_defined="no"
+  ])
+  if test "$tst_symbol_defined" = "yes"; then
+    AS_VAR_SET(ac_HaveDef, yes)
+    ifelse($3,,[AC_MSG_RESULT([yes])])
+  else
+    AS_VAR_SET(ac_HaveDef, no)
+    ifelse($3,,[AC_MSG_RESULT([no])])
+  fi
+  AS_VAR_POPDEF([ac_HaveDef])dnl
+])
+
+
+dnl CURL_CHECK_LIB_XNET
+dnl -------------------------------------------------
+dnl Verify if X/Open network library is required.
+
+AC_DEFUN([CURL_CHECK_LIB_XNET], [
+  AC_MSG_CHECKING([if X/Open network library is required])
+  tst_lib_xnet_required="no"
+  AC_COMPILE_IFELSE([
+    AC_LANG_SOURCE([[
+int main (void)
+{
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600)
+  return 0;
+#elif defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED)
+  return 0;
+#else
+  force compilation error
+#endif
+}
+    ]])
+  ],[
+    tst_lib_xnet_required="yes"
+    LIBS="-lxnet $LIBS"
+  ])
+  AC_MSG_RESULT([$tst_lib_xnet_required])
+])
+
+
+dnl CURL_CHECK_AIX_ALL_SOURCE
+dnl -------------------------------------------------
+dnl Provides a replacement of traditional AC_AIX with
+dnl an uniform behavior across all autoconf versions,
+dnl and with our own placement rules.
+
+AC_DEFUN([CURL_CHECK_AIX_ALL_SOURCE], [
+  AH_VERBATIM([_ALL_SOURCE],
+    [/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+#  undef _ALL_SOURCE
+#endif])
+  AC_BEFORE([$0], [AC_SYS_LARGEFILE])dnl
+  AC_BEFORE([$0], [CURL_CONFIGURE_REENTRANT])dnl
+  AC_BEFORE([$0], [CURL_CONFIGURE_PULL_SYS_POLL])dnl
+  AC_MSG_CHECKING([if OS is AIX (to define _ALL_SOURCE)])
+  AC_EGREP_CPP([yes_this_is_aix],[
+#ifdef _AIX
+   yes_this_is_aix
+#endif
+  ],[
+    AC_MSG_RESULT([yes])
+    AC_DEFINE(_ALL_SOURCE)
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+])
+
+
+dnl CURL_CHECK_HEADER_WINDOWS
+dnl -------------------------------------------------
+dnl Check for compilable and valid windows.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINDOWS], [
+  AC_CACHE_CHECK([for windows.h], [curl_cv_header_windows_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+      ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINDOWS_H shall not be defined.
+#else
+        int dummy=2*WINVER;
+#endif
+      ]])
+    ],[
+      curl_cv_header_windows_h="yes"
+    ],[
+      curl_cv_header_windows_h="no"
+    ])
+  ])
+  case "$curl_cv_header_windows_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WINDOWS_H, 1,
+        [Define to 1 if you have the windows.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_NATIVE_WINDOWS
+dnl -------------------------------------------------
+dnl Check if building a native Windows target
+
+AC_DEFUN([CURL_CHECK_NATIVE_WINDOWS], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_CACHE_CHECK([whether build target is a native Windows one], [curl_cv_native_windows], [
+    if test "$curl_cv_header_windows_h" = "no"; then
+      curl_cv_native_windows="no"
+    else
+      AC_COMPILE_IFELSE([
+        AC_LANG_PROGRAM([[
+        ]],[[
+#if defined(__MINGW32__) || defined(__MINGW32CE__) || \
+   (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64)))
+          int dummy=1;
+#else
+          Not a native Windows build target.
+#endif
+        ]])
+      ],[
+        curl_cv_native_windows="yes"
+      ],[
+        curl_cv_native_windows="no"
+      ])
+    fi
+  ])
+  AM_CONDITIONAL(DOING_NATIVE_WINDOWS, test "x$curl_cv_native_windows" = xyes)
+])
+
+
+dnl CURL_CHECK_HEADER_WINSOCK2
+dnl -------------------------------------------------
+dnl Check for compilable and valid winsock2.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINSOCK2], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_CACHE_CHECK([for winsock2.h], [curl_cv_header_winsock2_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+      ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WINSOCK2_H shall not be defined.
+#else
+        int dummy=2*IPPROTO_ESP;
+#endif
+      ]])
+    ],[
+      curl_cv_header_winsock2_h="yes"
+    ],[
+      curl_cv_header_winsock2_h="no"
+    ])
+  ])
+  case "$curl_cv_header_winsock2_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WINSOCK2_H, 1,
+        [Define to 1 if you have the winsock2.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_WS2TCPIP
+dnl -------------------------------------------------
+dnl Check for compilable and valid ws2tcpip.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WS2TCPIP], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+  AC_CACHE_CHECK([for ws2tcpip.h], [curl_cv_header_ws2tcpip_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+#include 
+      ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WS2TCPIP_H shall not be defined.
+#else
+        int dummy=2*IP_PKTINFO;
+#endif
+      ]])
+    ],[
+      curl_cv_header_ws2tcpip_h="yes"
+    ],[
+      curl_cv_header_ws2tcpip_h="no"
+    ])
+  ])
+  case "$curl_cv_header_ws2tcpip_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WS2TCPIP_H, 1,
+        [Define to 1 if you have the ws2tcpip.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_WINCRYPT
+dnl -------------------------------------------------
+dnl Check for compilable and valid wincrypt.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINCRYPT], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_CACHE_CHECK([for wincrypt.h], [curl_cv_header_wincrypt_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+      ]],[[
+        int dummy=2*PROV_RSA_FULL;
+      ]])
+    ],[
+      curl_cv_header_wincrypt_h="yes"
+    ],[
+      curl_cv_header_wincrypt_h="no"
+    ])
+  ])
+  case "$curl_cv_header_wincrypt_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WINCRYPT_H, 1,
+        [Define to 1 if you have the wincrypt.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_WINLDAP
+dnl -------------------------------------------------
+dnl Check for compilable and valid winldap.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINLDAP], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_CACHE_CHECK([for winldap.h], [curl_cv_header_winldap_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#endif
+#include 
+      ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINLDAP_H shall not be defined.
+#else
+        LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+        ULONG res = ldap_unbind(ldp);
+#endif
+      ]])
+    ],[
+      curl_cv_header_winldap_h="yes"
+    ],[
+      curl_cv_header_winldap_h="no"
+    ])
+  ])
+  case "$curl_cv_header_winldap_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WINLDAP_H, 1,
+        [Define to 1 if you have the winldap.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_WINBER
+dnl -------------------------------------------------
+dnl Check for compilable and valid winber.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_WINBER], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINLDAP])dnl
+  AC_CACHE_CHECK([for winber.h], [curl_cv_header_winber_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#endif
+#include 
+#include 
+      ]],[[
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINBER_H shall not be defined.
+#else
+        BERVAL *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+#endif
+      ]])
+    ],[
+      curl_cv_header_winber_h="yes"
+    ],[
+      curl_cv_header_winber_h="no"
+    ])
+  ])
+  case "$curl_cv_header_winber_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_WINBER_H, 1,
+        [Define to 1 if you have the winber.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_LBER
+dnl -------------------------------------------------
+dnl Check for compilable and valid lber.h header,
+dnl and check if it is needed even with ldap.h
+
+AC_DEFUN([CURL_CHECK_HEADER_LBER], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_CACHE_CHECK([for lber.h], [curl_cv_header_lber_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#include 
+      ]],[[
+        BerValue *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+      ]])
+    ],[
+      curl_cv_header_lber_h="yes"
+    ],[
+      curl_cv_header_lber_h="no"
+    ])
+  ])
+  if test "$curl_cv_header_lber_h" = "yes"; then
+    AC_DEFINE_UNQUOTED(HAVE_LBER_H, 1,
+      [Define to 1 if you have the lber.h header file.])
+    #
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#include 
+      ]],[[
+        BerValue *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+      ]])
+    ],[
+      curl_cv_need_header_lber_h="no"
+    ],[
+      curl_cv_need_header_lber_h="yes"
+    ])
+    #
+    case "$curl_cv_need_header_lber_h" in
+      yes)
+        AC_DEFINE_UNQUOTED(NEED_LBER_H, 1,
+          [Define to 1 if you need the lber.h header file even with ldap.h])
+        ;;
+    esac
+  fi
+])
+
+
+dnl CURL_CHECK_HEADER_LDAP
+dnl -------------------------------------------------
+dnl Check for compilable and valid ldap.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_LDAP], [
+  AC_REQUIRE([CURL_CHECK_HEADER_LBER])dnl
+  AC_CACHE_CHECK([for ldap.h], [curl_cv_header_ldap_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#include 
+      ]],[[
+        LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+        int res = ldap_unbind(ldp);
+      ]])
+    ],[
+      curl_cv_header_ldap_h="yes"
+    ],[
+      curl_cv_header_ldap_h="no"
+    ])
+  ])
+  case "$curl_cv_header_ldap_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_LDAP_H, 1,
+        [Define to 1 if you have the ldap.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_LDAP_SSL
+dnl -------------------------------------------------
+dnl Check for compilable and valid ldap_ssl.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_LDAP_SSL], [
+  AC_REQUIRE([CURL_CHECK_HEADER_LDAP])dnl
+  AC_CACHE_CHECK([for ldap_ssl.h], [curl_cv_header_ldap_ssl_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+#include 
+      ]],[[
+        LDAP *ldp = ldapssl_init("dummy", LDAPS_PORT, 1);
+      ]])
+    ],[
+      curl_cv_header_ldap_ssl_h="yes"
+    ],[
+      curl_cv_header_ldap_ssl_h="no"
+    ])
+  ])
+  case "$curl_cv_header_ldap_ssl_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_LDAP_SSL_H, 1,
+        [Define to 1 if you have the ldap_ssl.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_HEADER_LDAPSSL
+dnl -------------------------------------------------
+dnl Check for compilable and valid ldapssl.h header
+
+AC_DEFUN([CURL_CHECK_HEADER_LDAPSSL], [
+  AC_REQUIRE([CURL_CHECK_HEADER_LDAP])dnl
+  AC_CACHE_CHECK([for ldapssl.h], [curl_cv_header_ldapssl_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+#include 
+      ]],[[
+        char *cert_label = NULL;
+        LDAP *ldp = ldap_ssl_init("dummy", LDAPS_PORT, cert_label);
+      ]])
+    ],[
+      curl_cv_header_ldapssl_h="yes"
+    ],[
+      curl_cv_header_ldapssl_h="no"
+    ])
+  ])
+  case "$curl_cv_header_ldapssl_h" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_LDAPSSL_H, 1,
+        [Define to 1 if you have the ldapssl.h header file.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_LIBS_WINLDAP
+dnl -------------------------------------------------
+dnl Check for libraries needed for WINLDAP support,
+dnl and prepended to LIBS any needed libraries.
+dnl This macro can take an optional parameter with a
+dnl whitespace separated list of libraries to check
+dnl before the WINLDAP default ones.
+
+AC_DEFUN([CURL_CHECK_LIBS_WINLDAP], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINBER])dnl
+  #
+  AC_MSG_CHECKING([for WINLDAP libraries])
+  #
+  u_libs=""
+  #
+  ifelse($1,,,[
+    for x_lib in $1; do
+      case "$x_lib" in
+        -l*)
+          l_lib="$x_lib"
+          ;;
+        *)
+          l_lib="-l$x_lib"
+          ;;
+      esac
+      if test -z "$u_libs"; then
+        u_libs="$l_lib"
+      else
+        u_libs="$u_libs $l_lib"
+      fi
+    done
+  ])
+  #
+  curl_cv_save_LIBS="$LIBS"
+  curl_cv_ldap_LIBS="unknown"
+  #
+  for x_nlibs in '' "$u_libs" \
+    '-lwldap32' ; do
+    if test "$curl_cv_ldap_LIBS" = "unknown"; then
+      if test -z "$x_nlibs"; then
+        LIBS="$curl_cv_save_LIBS"
+      else
+        LIBS="$x_nlibs $curl_cv_save_LIBS"
+      fi
+      AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINLDAP_H
+#include 
+#endif
+#ifdef HAVE_WINBER_H
+#include 
+#endif
+#endif
+        ]],[[
+          BERVAL *bvp = NULL;
+          BerElement *bep = ber_init(bvp);
+          LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+          ULONG res = ldap_unbind(ldp);
+          ber_free(bep, 1);
+        ]])
+      ],[
+        curl_cv_ldap_LIBS="$x_nlibs"
+      ])
+    fi
+  done
+  #
+  LIBS="$curl_cv_save_LIBS"
+  #
+  case X-"$curl_cv_ldap_LIBS" in
+    X-unknown)
+      AC_MSG_RESULT([cannot find WINLDAP libraries])
+      ;;
+    X-)
+      AC_MSG_RESULT([no additional lib required])
+      ;;
+    *)
+      if test -z "$curl_cv_save_LIBS"; then
+        LIBS="$curl_cv_ldap_LIBS"
+      else
+        LIBS="$curl_cv_ldap_LIBS $curl_cv_save_LIBS"
+      fi
+      AC_MSG_RESULT([$curl_cv_ldap_LIBS])
+      ;;
+  esac
+  #
+])
+
+
+dnl CURL_CHECK_LIBS_LDAP
+dnl -------------------------------------------------
+dnl Check for libraries needed for LDAP support,
+dnl and prepended to LIBS any needed libraries.
+dnl This macro can take an optional parameter with a
+dnl whitespace separated list of libraries to check
+dnl before the default ones.
+
+AC_DEFUN([CURL_CHECK_LIBS_LDAP], [
+  AC_REQUIRE([CURL_CHECK_HEADER_LDAP])dnl
+  #
+  AC_MSG_CHECKING([for LDAP libraries])
+  #
+  u_libs=""
+  #
+  ifelse($1,,,[
+    for x_lib in $1; do
+      case "$x_lib" in
+        -l*)
+          l_lib="$x_lib"
+          ;;
+        *)
+          l_lib="-l$x_lib"
+          ;;
+      esac
+      if test -z "$u_libs"; then
+        u_libs="$l_lib"
+      else
+        u_libs="$u_libs $l_lib"
+      fi
+    done
+  ])
+  #
+  curl_cv_save_LIBS="$LIBS"
+  curl_cv_ldap_LIBS="unknown"
+  #
+  for x_nlibs in '' "$u_libs" \
+    '-lldap' \
+    '-lldap -llber' \
+    '-llber -lldap' \
+    '-lldapssl -lldapx -lldapsdk' \
+    '-lldapsdk -lldapx -lldapssl' \
+    '-lldap -llber -lssl -lcrypto' ; do
+
+    if test "$curl_cv_ldap_LIBS" = "unknown"; then
+      if test -z "$x_nlibs"; then
+        LIBS="$curl_cv_save_LIBS"
+      else
+        LIBS="$x_nlibs $curl_cv_save_LIBS"
+      fi
+      AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+        ]],[[
+          BerValue *bvp = NULL;
+          BerElement *bep = ber_init(bvp);
+          LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+          int res = ldap_unbind(ldp);
+          ber_free(bep, 1);
+        ]])
+      ],[
+        curl_cv_ldap_LIBS="$x_nlibs"
+      ])
+    fi
+  done
+  #
+  LIBS="$curl_cv_save_LIBS"
+  #
+  case X-"$curl_cv_ldap_LIBS" in
+    X-unknown)
+      AC_MSG_RESULT([cannot find LDAP libraries])
+      ;;
+    X-)
+      AC_MSG_RESULT([no additional lib required])
+      ;;
+    *)
+      if test -z "$curl_cv_save_LIBS"; then
+        LIBS="$curl_cv_ldap_LIBS"
+      else
+        LIBS="$curl_cv_ldap_LIBS $curl_cv_save_LIBS"
+      fi
+      AC_MSG_RESULT([$curl_cv_ldap_LIBS])
+      ;;
+  esac
+  #
+])
+
+
+dnl CURL_CHECK_HEADER_MALLOC
+dnl -------------------------------------------------
+dnl Check for compilable and valid malloc.h header,
+dnl and check if it is needed even with stdlib.h
+
+AC_DEFUN([CURL_CHECK_HEADER_MALLOC], [
+  AC_CACHE_CHECK([for malloc.h], [curl_cv_header_malloc_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include 
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      curl_cv_header_malloc_h="yes"
+    ],[
+      curl_cv_header_malloc_h="no"
+    ])
+  ])
+  if test "$curl_cv_header_malloc_h" = "yes"; then
+    AC_DEFINE_UNQUOTED(HAVE_MALLOC_H, 1,
+      [Define to 1 if you have the malloc.h header file.])
+    #
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include 
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      curl_cv_need_header_malloc_h="no"
+    ],[
+      curl_cv_need_header_malloc_h="yes"
+    ])
+    #
+    case "$curl_cv_need_header_malloc_h" in
+      yes)
+        AC_DEFINE_UNQUOTED(NEED_MALLOC_H, 1,
+          [Define to 1 if you need the malloc.h header file even with stdlib.h])
+        ;;
+    esac
+  fi
+])
+
+
+dnl CURL_CHECK_HEADER_MEMORY
+dnl -------------------------------------------------
+dnl Check for compilable and valid memory.h header,
+dnl and check if it is needed even with stdlib.h for
+dnl memory related functions.
+
+AC_DEFUN([CURL_CHECK_HEADER_MEMORY], [
+  AC_CACHE_CHECK([for memory.h], [curl_cv_header_memory_h], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include 
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      curl_cv_header_memory_h="yes"
+    ],[
+      curl_cv_header_memory_h="no"
+    ])
+  ])
+  if test "$curl_cv_header_memory_h" = "yes"; then
+    AC_DEFINE_UNQUOTED(HAVE_MEMORY_H, 1,
+      [Define to 1 if you have the memory.h header file.])
+    #
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include 
+      ]],[[
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+      ]])
+    ],[
+      curl_cv_need_header_memory_h="no"
+    ],[
+      curl_cv_need_header_memory_h="yes"
+    ])
+    #
+    case "$curl_cv_need_header_memory_h" in
+      yes)
+        AC_DEFINE_UNQUOTED(NEED_MEMORY_H, 1,
+          [Define to 1 if you need the memory.h header file even with stdlib.h])
+        ;;
+    esac
+  fi
+])
+
+dnl TYPE_SOCKADDR_STORAGE
+dnl -------------------------------------------------
+dnl Check for struct sockaddr_storage. Most IPv6-enabled
+dnl hosts have it, but AIX 4.3 is one known exception.
+
+AC_DEFUN([TYPE_SOCKADDR_STORAGE],
+[
+   AC_CHECK_TYPE([struct sockaddr_storage],
+        AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE, 1,
+                  [if struct sockaddr_storage is defined]), ,
+   [
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+   ])
+])
+
+dnl CURL_CHECK_FUNC_RECV
+dnl -------------------------------------------------
+dnl Test if the socket recv() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_RECV
+dnl will be defined, defining the types of the arguments
+dnl in RECV_TYPE_ARG1, RECV_TYPE_ARG2, RECV_TYPE_ARG3
+dnl and RECV_TYPE_ARG4, defining the type of the function
+dnl return value in RECV_TYPE_RETV.
+
+AC_DEFUN([CURL_CHECK_FUNC_RECV], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+  AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+  #
+  AC_MSG_CHECKING([for recv])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+    ]],[[
+      recv(0, 0, 0, 0);
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_recv="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_recv="no"
+  ])
+  #
+  if test "$curl_cv_recv" = "yes"; then
+    AC_CACHE_CHECK([types of args and return type for recv],
+      [curl_cv_func_recv_args], [
+      curl_cv_func_recv_args="unknown"
+      for recv_retv in 'int' 'ssize_t'; do
+        for recv_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+          for recv_arg2 in 'char *' 'void *'; do
+            for recv_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+              for recv_arg4 in 'int' 'unsigned int'; do
+                if test "$curl_cv_func_recv_args" = "unknown"; then
+                  AC_COMPILE_IFELSE([
+                    AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define RECVCALLCONV PASCAL
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#define RECVCALLCONV
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                      extern $recv_retv RECVCALLCONV
+                      recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4);
+#endif
+                    ]],[[
+                      $recv_arg1 s=0;
+                      $recv_arg2 buf=0;
+                      $recv_arg3 len=0;
+                      $recv_arg4 flags=0;
+                      $recv_retv res = recv(s, buf, len, flags);
+                    ]])
+                  ],[
+                    curl_cv_func_recv_args="$recv_arg1,$recv_arg2,$recv_arg3,$recv_arg4,$recv_retv"
+                  ])
+                fi
+              done
+            done
+          done
+        done
+      done
+    ]) # AC-CACHE-CHECK
+    if test "$curl_cv_func_recv_args" = "unknown"; then
+      AC_MSG_ERROR([Cannot find proper types to use for recv args])
+    else
+      recv_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_recv_args" | sed 's/\*/\*/g'`
+      IFS=$recv_prev_IFS
+      shift
+      #
+      AC_DEFINE_UNQUOTED(RECV_TYPE_ARG1, $[1],
+        [Define to the type of arg 1 for recv.])
+      AC_DEFINE_UNQUOTED(RECV_TYPE_ARG2, $[2],
+        [Define to the type of arg 2 for recv.])
+      AC_DEFINE_UNQUOTED(RECV_TYPE_ARG3, $[3],
+        [Define to the type of arg 3 for recv.])
+      AC_DEFINE_UNQUOTED(RECV_TYPE_ARG4, $[4],
+        [Define to the type of arg 4 for recv.])
+      AC_DEFINE_UNQUOTED(RECV_TYPE_RETV, $[5],
+        [Define to the function return type for recv.])
+      #
+      AC_DEFINE_UNQUOTED(HAVE_RECV, 1,
+        [Define to 1 if you have the recv function.])
+      curl_cv_func_recv="yes"
+    fi
+  else
+    AC_MSG_ERROR([Unable to link function recv])
+  fi
+])
+
+
+dnl CURL_CHECK_FUNC_SEND
+dnl -------------------------------------------------
+dnl Test if the socket send() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_SEND
+dnl will be defined, defining the types of the arguments
+dnl in SEND_TYPE_ARG1, SEND_TYPE_ARG2, SEND_TYPE_ARG3
+dnl and SEND_TYPE_ARG4, defining the type of the function
+dnl return value in SEND_TYPE_RETV, and also defining the
+dnl type qualifier of second argument in SEND_QUAL_ARG2.
+
+AC_DEFUN([CURL_CHECK_FUNC_SEND], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+  AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+  #
+  AC_MSG_CHECKING([for send])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+    ]],[[
+      send(0, 0, 0, 0);
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_send="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_send="no"
+  ])
+  #
+  if test "$curl_cv_send" = "yes"; then
+    AC_CACHE_CHECK([types of args and return type for send],
+      [curl_cv_func_send_args], [
+      curl_cv_func_send_args="unknown"
+      for send_retv in 'int' 'ssize_t'; do
+        for send_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+          for send_arg2 in 'char *' 'void *' 'const char *' 'const void *'; do
+            for send_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+              for send_arg4 in 'int' 'unsigned int'; do
+                if test "$curl_cv_func_send_args" = "unknown"; then
+                  AC_COMPILE_IFELSE([
+                    AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define SENDCALLCONV PASCAL
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#define SENDCALLCONV
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                      extern $send_retv SENDCALLCONV
+                      send($send_arg1, $send_arg2, $send_arg3, $send_arg4);
+#endif
+                    ]],[[
+                      $send_arg1 s=0;
+                      $send_arg3 len=0;
+                      $send_arg4 flags=0;
+                      $send_retv res = send(s, 0, len, flags);
+                    ]])
+                  ],[
+                    curl_cv_func_send_args="$send_arg1,$send_arg2,$send_arg3,$send_arg4,$send_retv"
+                  ])
+                fi
+              done
+            done
+          done
+        done
+      done
+    ]) # AC-CACHE-CHECK
+    if test "$curl_cv_func_send_args" = "unknown"; then
+      AC_MSG_ERROR([Cannot find proper types to use for send args])
+    else
+      send_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_send_args" | sed 's/\*/\*/g'`
+      IFS=$send_prev_IFS
+      shift
+      #
+      send_qual_type_arg2=$[2]
+      #
+      AC_DEFINE_UNQUOTED(SEND_TYPE_ARG1, $[1],
+        [Define to the type of arg 1 for send.])
+      AC_DEFINE_UNQUOTED(SEND_TYPE_ARG3, $[3],
+        [Define to the type of arg 3 for send.])
+      AC_DEFINE_UNQUOTED(SEND_TYPE_ARG4, $[4],
+        [Define to the type of arg 4 for send.])
+      AC_DEFINE_UNQUOTED(SEND_TYPE_RETV, $[5],
+        [Define to the function return type for send.])
+      #
+      prev_sh_opts=$-
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set -f
+          ;;
+      esac
+      #
+      case "$send_qual_type_arg2" in
+        const*)
+          send_qual_arg2=const
+          send_type_arg2=`echo $send_qual_type_arg2 | sed 's/^const //'`
+        ;;
+        *)
+          send_qual_arg2=
+          send_type_arg2=$send_qual_type_arg2
+        ;;
+      esac
+      #
+      AC_DEFINE_UNQUOTED(SEND_QUAL_ARG2, $send_qual_arg2,
+        [Define to the type qualifier of arg 2 for send.])
+      AC_DEFINE_UNQUOTED(SEND_TYPE_ARG2, $send_type_arg2,
+        [Define to the type of arg 2 for send.])
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set +f
+          ;;
+      esac
+      #
+      AC_DEFINE_UNQUOTED(HAVE_SEND, 1,
+        [Define to 1 if you have the send function.])
+      curl_cv_func_send="yes"
+    fi
+  else
+    AC_MSG_ERROR([Unable to link function send])
+  fi
+])
+
+dnl CURL_CHECK_MSG_NOSIGNAL
+dnl -------------------------------------------------
+dnl Check for MSG_NOSIGNAL
+
+AC_DEFUN([CURL_CHECK_MSG_NOSIGNAL], [
+  AC_CHECK_HEADERS(sys/types.h sys/socket.h)
+  AC_CACHE_CHECK([for MSG_NOSIGNAL], [curl_cv_msg_nosignal], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+      ]],[[
+        int flag=MSG_NOSIGNAL;
+      ]])
+    ],[
+      curl_cv_msg_nosignal="yes"
+    ],[
+      curl_cv_msg_nosignal="no"
+    ])
+  ])
+  case "$curl_cv_msg_nosignal" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_MSG_NOSIGNAL, 1,
+        [Define to 1 if you have the MSG_NOSIGNAL flag.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_STRUCT_TIMEVAL
+dnl -------------------------------------------------
+dnl Check for timeval struct
+
+AC_DEFUN([CURL_CHECK_STRUCT_TIMEVAL], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINSOCK2])dnl
+  AC_CHECK_HEADERS(sys/types.h sys/time.h sys/socket.h)
+  AC_CACHE_CHECK([for struct timeval], [curl_cv_struct_timeval], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+      ]],[[
+        struct timeval ts;
+        ts.tv_sec  = 0;
+        ts.tv_usec = 0;
+      ]])
+    ],[
+      curl_cv_struct_timeval="yes"
+    ],[
+      curl_cv_struct_timeval="no"
+    ])
+  ])
+  case "$curl_cv_struct_timeval" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_STRUCT_TIMEVAL, 1,
+        [Define to 1 if you have the timeval struct.])
+      ;;
+  esac
+])
+
+
+dnl TYPE_IN_ADDR_T
+dnl -------------------------------------------------
+dnl Check for in_addr_t: it is used to receive the return code of inet_addr()
+dnl and a few other things.
+
+AC_DEFUN([TYPE_IN_ADDR_T], [
+  AC_CHECK_TYPE([in_addr_t], ,[
+    dnl in_addr_t not available
+    AC_CACHE_CHECK([for in_addr_t equivalent],
+      [curl_cv_in_addr_t_equiv], [
+      curl_cv_in_addr_t_equiv="unknown"
+      for t in "unsigned long" int size_t unsigned long; do
+        if test "$curl_cv_in_addr_t_equiv" = "unknown"; then
+          AC_LINK_IFELSE([
+            AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+            ]],[[
+              $t data = inet_addr ("1.2.3.4");
+            ]])
+          ],[
+            curl_cv_in_addr_t_equiv="$t"
+          ])
+        fi
+      done
+    ])
+    case "$curl_cv_in_addr_t_equiv" in
+      unknown)
+        AC_MSG_ERROR([Cannot find a type to use in place of in_addr_t])
+        ;;
+      *)
+        AC_DEFINE_UNQUOTED(in_addr_t, $curl_cv_in_addr_t_equiv,
+          [Type to use in place of in_addr_t when system does not provide it.])
+        ;;
+    esac
+  ],[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+  ])
+])
+
+
+dnl CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC
+dnl -------------------------------------------------
+dnl Check if monotonic clock_gettime is available.
+
+AC_DEFUN([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC], [
+  AC_CHECK_HEADERS(sys/types.h sys/time.h)
+  AC_MSG_CHECKING([for monotonic clock_gettime])
+  #
+  if test "x$dontwant_rt" = "xno" ; then
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+      ]],[[
+        struct timespec ts;
+        (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+      ]])
+    ],[
+      AC_MSG_RESULT([yes])
+      curl_func_clock_gettime="yes"
+    ],[
+      AC_MSG_RESULT([no])
+      curl_func_clock_gettime="no"
+    ])
+  fi
+  dnl Definition of HAVE_CLOCK_GETTIME_MONOTONIC is intentionally postponed
+  dnl until library linking and run-time checks for clock_gettime succeed.
+])
+
+
+dnl CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
+dnl -------------------------------------------------
+dnl If monotonic clock_gettime is available then,
+dnl check and prepended to LIBS any needed libraries.
+
+AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [
+  AC_REQUIRE([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC])dnl
+  #
+  if test "$curl_func_clock_gettime" = "yes"; then
+    #
+    AC_MSG_CHECKING([for clock_gettime in libraries])
+    #
+    curl_cv_save_LIBS="$LIBS"
+    curl_cv_gclk_LIBS="unknown"
+    #
+    for x_xlibs in '' '-lrt' '-lposix4' ; do
+      if test "$curl_cv_gclk_LIBS" = "unknown"; then
+        if test -z "$x_xlibs"; then
+          LIBS="$curl_cv_save_LIBS"
+        else
+          LIBS="$x_xlibs $curl_cv_save_LIBS"
+        fi
+        AC_LINK_IFELSE([
+          AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+          ]],[[
+            struct timespec ts;
+            (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+          ]])
+        ],[
+          curl_cv_gclk_LIBS="$x_xlibs"
+        ])
+      fi
+    done
+    #
+    LIBS="$curl_cv_save_LIBS"
+    #
+    case X-"$curl_cv_gclk_LIBS" in
+      X-unknown)
+        AC_MSG_RESULT([cannot find clock_gettime])
+        AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined])
+        curl_func_clock_gettime="no"
+        ;;
+      X-)
+        AC_MSG_RESULT([no additional lib required])
+        curl_func_clock_gettime="yes"
+        ;;
+      *)
+        if test -z "$curl_cv_save_LIBS"; then
+          LIBS="$curl_cv_gclk_LIBS"
+        else
+          LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS"
+        fi
+        AC_MSG_RESULT([$curl_cv_gclk_LIBS])
+        curl_func_clock_gettime="yes"
+        ;;
+    esac
+    #
+    dnl only do runtime verification when not cross-compiling
+    if test "x$cross_compiling" != "xyes" &&
+      test "$curl_func_clock_gettime" = "yes"; then
+      AC_MSG_CHECKING([if monotonic clock_gettime works])
+      CURL_RUN_IFELSE([
+        AC_LANG_PROGRAM([[
+#ifdef HAVE_STDLIB_H
+#include 
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+        ]],[[
+          struct timespec ts;
+          if (0 == clock_gettime(CLOCK_MONOTONIC, &ts))
+            exit(0);
+          else
+            exit(1);
+        ]])
+      ],[
+        AC_MSG_RESULT([yes])
+      ],[
+        AC_MSG_RESULT([no])
+        AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined])
+        curl_func_clock_gettime="no"
+        LIBS="$curl_cv_save_LIBS"
+      ])
+    fi
+    #
+    case "$curl_func_clock_gettime" in
+      yes)
+        AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME_MONOTONIC, 1,
+          [Define to 1 if you have the clock_gettime function and monotonic timer.])
+        ;;
+    esac
+    #
+  fi
+  #
+])
+
+
+dnl CURL_CHECK_LIBS_CONNECT
+dnl -------------------------------------------------
+dnl Verify if network connect function is already available
+dnl using current libraries or if another one is required.
+
+AC_DEFUN([CURL_CHECK_LIBS_CONNECT], [
+  AC_REQUIRE([CURL_INCLUDES_WINSOCK2])dnl
+  AC_REQUIRE([CURL_INCLUDES_BSDSOCKET])dnl
+  AC_MSG_CHECKING([for connect in libraries])
+  tst_connect_save_LIBS="$LIBS"
+  tst_connect_need_LIBS="unknown"
+  for tst_lib in '' '-lsocket' ; do
+    if test "$tst_connect_need_LIBS" = "unknown"; then
+      LIBS="$tst_lib $tst_connect_save_LIBS"
+      AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([[
+          $curl_includes_winsock2
+          $curl_includes_bsdsocket
+          #if !defined(HAVE_WINDOWS_H) && !defined(HAVE_PROTO_BSDSOCKET_H)
+            int connect(int, void*, int);
+          #endif
+        ]],[[
+          if(0 != connect(0, 0, 0))
+            return 1;
+        ]])
+      ],[
+        tst_connect_need_LIBS="$tst_lib"
+      ])
+    fi
+  done
+  LIBS="$tst_connect_save_LIBS"
+  #
+  case X-"$tst_connect_need_LIBS" in
+    X-unknown)
+      AC_MSG_RESULT([cannot find connect])
+      AC_MSG_ERROR([cannot find connect function in libraries.])
+      ;;
+    X-)
+      AC_MSG_RESULT([yes])
+      ;;
+    *)
+      AC_MSG_RESULT([$tst_connect_need_LIBS])
+      LIBS="$tst_connect_need_LIBS $tst_connect_save_LIBS"
+      ;;
+  esac
+])
+
+
+dnl CURL_DEFINE_UNQUOTED (VARIABLE, [VALUE])
+dnl -------------------------------------------------
+dnl Like AC_DEFINE_UNQUOTED this macro will define a C preprocessor
+dnl symbol that can be further used in custom template configuration
+dnl files. This macro, unlike AC_DEFINE_UNQUOTED, does not use a third
+dnl argument for the description. Symbol definitions done with this
+dnl macro are intended to be exclusively used in handcrafted *.h.in
+dnl template files. Contrary to what AC_DEFINE_UNQUOTED does, this one
+dnl prevents autoheader generation and insertion of symbol template
+dnl stub and definition into the first configuration header file. Do
+dnl not use this macro as a replacement for AC_DEFINE_UNQUOTED, each
+dnl one serves different functional needs.
+
+AC_DEFUN([CURL_DEFINE_UNQUOTED], [
+cat >>confdefs.h <<_EOF
+[@%:@define] $1 ifelse($#, 2, [$2], 1)
+_EOF
+])
+
+dnl CURL_CONFIGURE_PULL_SYS_POLL
+dnl -------------------------------------------------
+dnl The need for the sys/poll.h inclusion arises mainly to properly
+dnl interface AIX systems which define macros 'events' and 'revents'.
+
+AC_DEFUN([CURL_CONFIGURE_PULL_SYS_POLL], [
+  AC_REQUIRE([CURL_INCLUDES_POLL])dnl
+  #
+  tst_poll_events_macro_defined="unknown"
+  #
+  AC_COMPILE_IFELSE([
+    AC_LANG_PROGRAM([[
+      $curl_includes_poll
+    ]],[[
+#if defined(events) || defined(revents)
+      return 0;
+#else
+      force compilation error
+#endif
+    ]])
+  ],[
+    tst_poll_events_macro_defined="yes"
+  ],[
+    tst_poll_events_macro_defined="no"
+  ])
+  #
+  if test "$tst_poll_events_macro_defined" = "yes"; then
+    if test "x$ac_cv_header_sys_poll_h" = "xyes"; then
+      CURL_DEFINE_UNQUOTED([CURL_PULL_SYS_POLL_H])
+    fi
+  fi
+  #
+])
+
+
+dnl CURL_CHECK_FUNC_SELECT
+dnl -------------------------------------------------
+dnl Test if the socket select() function is available,
+dnl and check its return type and the types of its
+dnl arguments. If the function succeeds HAVE_SELECT
+dnl will be defined, defining the types of the
+dnl arguments in SELECT_TYPE_ARG1, SELECT_TYPE_ARG234
+dnl and SELECT_TYPE_ARG5, defining the type of the
+dnl function return value in SELECT_TYPE_RETV, and
+dnl also defining the type qualifier of fifth argument
+dnl in SELECT_QUAL_ARG5.
+
+AC_DEFUN([CURL_CHECK_FUNC_SELECT], [
+  AC_REQUIRE([CURL_CHECK_STRUCT_TIMEVAL])dnl
+  AC_CHECK_HEADERS(sys/select.h sys/socket.h)
+  #
+  AC_MSG_CHECKING([for select])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifndef HAVE_WINDOWS_H
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
+#endif
+    ]],[[
+      select(0, 0, 0, 0, 0);
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    curl_cv_select="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    curl_cv_select="no"
+  ])
+  #
+  if test "$curl_cv_select" = "yes"; then
+    AC_CACHE_CHECK([types of args and return type for select],
+      [curl_cv_func_select_args], [
+      curl_cv_func_select_args="unknown"
+      for sel_retv in 'int' 'ssize_t'; do
+        for sel_arg1 in 'int' 'ssize_t' 'size_t' 'unsigned long int' 'unsigned int'; do
+          for sel_arg234 in 'fd_set *' 'int *' 'void *'; do
+            for sel_arg5 in 'struct timeval *' 'const struct timeval *'; do
+              if test "$curl_cv_func_select_args" = "unknown"; then
+                AC_COMPILE_IFELSE([
+                  AC_LANG_PROGRAM([[
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define SELECTCALLCONV PASCAL
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifndef HAVE_WINDOWS_H
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
+#define SELECTCALLCONV
+#endif
+#ifndef HAVE_STRUCT_TIMEVAL
+                    struct timeval {
+                      long tv_sec;
+                      long tv_usec;
+                    };
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                    extern $sel_retv SELECTCALLCONV
+				select($sel_arg1,
+					$sel_arg234,
+					$sel_arg234,
+					$sel_arg234,
+					$sel_arg5);
+#endif
+                  ]],[[
+                    $sel_arg1   nfds=0;
+                    $sel_arg234 rfds=0;
+                    $sel_arg234 wfds=0;
+                    $sel_arg234 efds=0;
+                    $sel_retv res = select(nfds, rfds, wfds, efds, 0);
+                  ]])
+                ],[
+                  curl_cv_func_select_args="$sel_arg1,$sel_arg234,$sel_arg5,$sel_retv"
+                ])
+              fi
+            done
+          done
+        done
+      done
+    ]) # AC-CACHE-CHECK
+    if test "$curl_cv_func_select_args" = "unknown"; then
+      AC_MSG_WARN([Cannot find proper types to use for select args])
+      AC_MSG_WARN([HAVE_SELECT will not be defined])
+    else
+      select_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_select_args" | sed 's/\*/\*/g'`
+      IFS=$select_prev_IFS
+      shift
+      #
+      sel_qual_type_arg5=$[3]
+      #
+      AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG1, $[1],
+        [Define to the type of arg 1 for select.])
+      AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG234, $[2],
+        [Define to the type of args 2, 3 and 4 for select.])
+      AC_DEFINE_UNQUOTED(SELECT_TYPE_RETV, $[4],
+        [Define to the function return type for select.])
+      #
+      prev_sh_opts=$-
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set -f
+          ;;
+      esac
+      #
+      case "$sel_qual_type_arg5" in
+        const*)
+          sel_qual_arg5=const
+          sel_type_arg5=`echo $sel_qual_type_arg5 | sed 's/^const //'`
+        ;;
+        *)
+          sel_qual_arg5=
+          sel_type_arg5=$sel_qual_type_arg5
+        ;;
+      esac
+      #
+      AC_DEFINE_UNQUOTED(SELECT_QUAL_ARG5, $sel_qual_arg5,
+        [Define to the type qualifier of arg 5 for select.])
+      AC_DEFINE_UNQUOTED(SELECT_TYPE_ARG5, $sel_type_arg5,
+        [Define to the type of arg 5 for select.])
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set +f
+          ;;
+      esac
+      #
+      AC_DEFINE_UNQUOTED(HAVE_SELECT, 1,
+        [Define to 1 if you have the select function.])
+      curl_cv_func_select="yes"
+    fi
+  fi
+])
+
+
+dnl CURL_VERIFY_RUNTIMELIBS
+dnl -------------------------------------------------
+dnl Verify that the shared libs found so far can be used when running
+dnl programs, since otherwise the situation will create odd configure errors
+dnl that are misleading people.
+dnl
+dnl Make sure this test is run BEFORE the first test in the script that
+dnl runs anything, which at the time of this writing is the AC_CHECK_SIZEOF
+dnl macro. It must also run AFTER all lib-checking macros are complete.
+
+AC_DEFUN([CURL_VERIFY_RUNTIMELIBS], [
+
+  dnl this test is of course not sensible if we are cross-compiling!
+  if test "x$cross_compiling" != xyes; then
+
+    dnl just run a program to verify that the libs checked for previous to this
+    dnl point also is available run-time!
+    AC_MSG_CHECKING([run-time libs availability])
+    CURL_RUN_IFELSE([
+int main()
+{
+  return 0;
+}
+],
+    AC_MSG_RESULT([fine]),
+    AC_MSG_RESULT([failed])
+    AC_MSG_ERROR([one or more libs available at link-time are not available run-time. Libs used at link-time: $LIBS])
+    )
+
+    dnl if this test fails, configure has already stopped
+  fi
+])
+
+
+dnl CURL_CHECK_VARIADIC_MACROS
+dnl -------------------------------------------------
+dnl Check compiler support of variadic macros
+
+AC_DEFUN([CURL_CHECK_VARIADIC_MACROS], [
+  AC_CACHE_CHECK([for compiler support of C99 variadic macro style],
+    [curl_cv_variadic_macros_c99], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#define c99_vmacro3(first, ...) fun3(first, __VA_ARGS__)
+#define c99_vmacro2(first, ...) fun2(first, __VA_ARGS__)
+        int fun3(int arg1, int arg2, int arg3);
+        int fun2(int arg1, int arg2);
+        int fun3(int arg1, int arg2, int arg3)
+        { return arg1 + arg2 + arg3; }
+        int fun2(int arg1, int arg2)
+        { return arg1 + arg2; }
+      ]],[[
+        int res3 = c99_vmacro3(1, 2, 3);
+        int res2 = c99_vmacro2(1, 2);
+      ]])
+    ],[
+      curl_cv_variadic_macros_c99="yes"
+    ],[
+      curl_cv_variadic_macros_c99="no"
+    ])
+  ])
+  case "$curl_cv_variadic_macros_c99" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_VARIADIC_MACROS_C99, 1,
+        [Define to 1 if compiler supports C99 variadic macro style.])
+      ;;
+  esac
+  AC_CACHE_CHECK([for compiler support of old gcc variadic macro style],
+    [curl_cv_variadic_macros_gcc], [
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#define gcc_vmacro3(first, args...) fun3(first, args)
+#define gcc_vmacro2(first, args...) fun2(first, args)
+        int fun3(int arg1, int arg2, int arg3);
+        int fun2(int arg1, int arg2);
+        int fun3(int arg1, int arg2, int arg3)
+        { return arg1 + arg2 + arg3; }
+        int fun2(int arg1, int arg2)
+        { return arg1 + arg2; }
+      ]],[[
+        int res3 = gcc_vmacro3(1, 2, 3);
+        int res2 = gcc_vmacro2(1, 2);
+      ]])
+    ],[
+      curl_cv_variadic_macros_gcc="yes"
+    ],[
+      curl_cv_variadic_macros_gcc="no"
+    ])
+  ])
+  case "$curl_cv_variadic_macros_gcc" in
+    yes)
+      AC_DEFINE_UNQUOTED(HAVE_VARIADIC_MACROS_GCC, 1,
+        [Define to 1 if compiler supports old gcc variadic macro style.])
+      ;;
+  esac
+])
+
+
+dnl CURL_CHECK_CA_BUNDLE
+dnl -------------------------------------------------
+dnl Check if a default ca-bundle should be used
+dnl
+dnl regarding the paths this will scan:
+dnl /etc/ssl/certs/ca-certificates.crt Debian systems
+dnl /etc/pki/tls/certs/ca-bundle.crt Redhat and Mandriva
+dnl /usr/share/ssl/certs/ca-bundle.crt old(er) Redhat
+dnl /usr/local/share/certs/ca-root-nss.crt FreeBSD, MidnightBSD
+dnl /etc/ssl/cert.pem OpenBSD, FreeBSD, MidnightBSD (symlink)
+dnl /etc/ssl/certs/ (ca path) SUSE
+
+AC_DEFUN([CURL_CHECK_CA_BUNDLE], [
+
+  AC_MSG_CHECKING([default CA cert bundle/path])
+
+  AC_ARG_WITH(ca-bundle,
+AS_HELP_STRING([--with-ca-bundle=FILE],
+[Path to a file containing CA certificates (example: /etc/ca-bundle.crt)])
+AS_HELP_STRING([--without-ca-bundle], [Don't use a default CA bundle]),
+  [
+    want_ca="$withval"
+    if test "x$want_ca" = "xyes"; then
+      AC_MSG_ERROR([--with-ca-bundle=FILE requires a path to the CA bundle])
+    fi
+  ],
+  [ want_ca="unset" ])
+  AC_ARG_WITH(ca-path,
+AS_HELP_STRING([--with-ca-path=DIRECTORY],
+[Path to a directory containing CA certificates stored individually, with \
+their filenames in a hash format. This option can be used with the OpenSSL, \
+GnuTLS and mbedTLS backends. Refer to OpenSSL c_rehash for details. \
+(example: /etc/certificates)])
+AS_HELP_STRING([--without-ca-path], [Don't use a default CA path]),
+  [
+    want_capath="$withval"
+    if test "x$want_capath" = "xyes"; then
+      AC_MSG_ERROR([--with-ca-path=DIRECTORY requires a path to the CA path directory])
+    fi
+  ],
+  [ want_capath="unset"])
+
+  ca_warning="   (warning: certs not found)"
+  capath_warning="   (warning: certs not found)"
+  check_capath=""
+
+  if test "x$want_ca" != "xno" -a "x$want_ca" != "xunset" -a \
+          "x$want_capath" != "xno" -a "x$want_capath" != "xunset"; then
+    dnl both given
+    ca="$want_ca"
+    capath="$want_capath"
+  elif test "x$want_ca" != "xno" -a "x$want_ca" != "xunset"; then
+    dnl --with-ca-bundle given
+    ca="$want_ca"
+    capath="no"
+  elif test "x$want_capath" != "xno" -a "x$want_capath" != "xunset"; then
+    dnl --with-ca-path given
+    if test "x$OPENSSL_ENABLED" != "x1" -a "x$GNUTLS_ENABLED" != "x1" -a "x$MBEDTLS_ENABLED" != "x1"; then
+      AC_MSG_ERROR([--with-ca-path only works with OpenSSL, GnuTLS or mbedTLS])
+    fi
+    capath="$want_capath"
+    ca="no"
+  else
+    dnl first try autodetecting a CA bundle , then a CA path
+    dnl both autodetections can be skipped by --without-ca-*
+    ca="no"
+    capath="no"
+    if test "x$cross_compiling" != "xyes"; then
+      dnl NOT cross-compiling and...
+      dnl neither of the --with-ca-* options are provided
+      if test "x$want_ca" = "xunset"; then
+        dnl the path we previously would have installed the curl ca bundle
+        dnl to, and thus we now check for an already existing cert in that
+        dnl place in case we find no other
+        if test "x$prefix" != xNONE; then
+          cac="${prefix}/share/curl/curl-ca-bundle.crt"
+        else
+          cac="$ac_default_prefix/share/curl/curl-ca-bundle.crt"
+        fi
+
+        for a in /etc/ssl/certs/ca-certificates.crt \
+                 /etc/pki/tls/certs/ca-bundle.crt \
+                 /usr/share/ssl/certs/ca-bundle.crt \
+                 /usr/local/share/certs/ca-root-nss.crt \
+                 /etc/ssl/cert.pem \
+                 "$cac"; do
+          if test -f "$a"; then
+            ca="$a"
+            break
+          fi
+        done
+      fi
+      if test "x$want_capath" = "xunset" -a "x$ca" = "xno" -a \
+              "x$OPENSSL_ENABLED" = "x1"; then
+        check_capath="/etc/ssl/certs/"
+      fi
+    else
+      dnl no option given and cross-compiling
+      AC_MSG_WARN([skipped the ca-cert path detection when cross-compiling])
+    fi
+  fi
+
+  if test "x$ca" = "xno" || test -f "$ca"; then
+    ca_warning=""
+  fi
+
+  if test "x$capath" != "xno"; then
+    check_capath="$capath"
+  fi
+
+  if test ! -z "$check_capath"; then
+    for a in "$check_capath"; do
+      if test -d "$a" && ls "$a"/[[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]].0 >/dev/null 2>/dev/null; then
+        if test "x$capath" = "xno"; then
+          capath="$a"
+        fi
+        capath_warning=""
+        break
+      fi
+    done
+  fi
+
+  if test "x$capath" = "xno"; then
+    capath_warning=""
+  fi
+
+  if test "x$ca" != "xno"; then
+    CURL_CA_BUNDLE='"'$ca'"'
+    AC_DEFINE_UNQUOTED(CURL_CA_BUNDLE, "$ca", [Location of default ca bundle])
+    AC_SUBST(CURL_CA_BUNDLE)
+    AC_MSG_RESULT([$ca])
+  fi
+  if test "x$capath" != "xno"; then
+    CURL_CA_PATH="\"$capath\""
+    AC_DEFINE_UNQUOTED(CURL_CA_PATH, "$capath", [Location of default ca path])
+    AC_MSG_RESULT([$capath (capath)])
+  fi
+  if test "x$ca" = "xno" && test "x$capath" = "xno"; then
+    AC_MSG_RESULT([no])
+  fi
+
+  AC_MSG_CHECKING([whether to use builtin CA store of SSL library])
+  AC_ARG_WITH(ca-fallback,
+AS_HELP_STRING([--with-ca-fallback], [Use the built in CA store of the SSL library])
+AS_HELP_STRING([--without-ca-fallback], [Don't use the built in CA store of the SSL library]),
+  [
+    if test "x$with_ca_fallback" != "xyes" -a "x$with_ca_fallback" != "xno"; then
+      AC_MSG_ERROR([--with-ca-fallback only allows yes or no as parameter])
+    fi
+  ],
+  [ with_ca_fallback="no"])
+  AC_MSG_RESULT([$with_ca_fallback])
+  if test "x$with_ca_fallback" = "xyes"; then
+    if test "x$OPENSSL_ENABLED" != "x1" -a "x$GNUTLS_ENABLED" != "x1"; then
+      AC_MSG_ERROR([--with-ca-fallback only works with OpenSSL or GnuTLS])
+    fi
+    AC_DEFINE_UNQUOTED(CURL_CA_FALLBACK, 1, [define "1" to use built in CA store of SSL library ])
+  fi
+])
+
+dnl CURL_CHECK_WIN32_LARGEFILE
+dnl -------------------------------------------------
+dnl Check if curl's WIN32 large file will be used
+
+AC_DEFUN([CURL_CHECK_WIN32_LARGEFILE], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINDOWS])dnl
+  AC_MSG_CHECKING([whether build target supports WIN32 file API])
+  curl_win32_file_api="no"
+  if test "$curl_cv_header_windows_h" = "yes"; then
+    if test x"$enable_largefile" != "xno"; then
+      AC_COMPILE_IFELSE([
+        AC_LANG_PROGRAM([[
+        ]],[[
+#if !defined(_WIN32_WCE) && \
+    (defined(__MINGW32__) || \
+    (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))))
+          int dummy=1;
+#else
+          WIN32 large file API not supported.
+#endif
+        ]])
+      ],[
+        curl_win32_file_api="win32_large_files"
+      ])
+    fi
+    if test "$curl_win32_file_api" = "no"; then
+      AC_COMPILE_IFELSE([
+        AC_LANG_PROGRAM([[
+        ]],[[
+#if defined(_WIN32_WCE) || defined(__MINGW32__) || defined(_MSC_VER)
+          int dummy=1;
+#else
+          WIN32 small file API not supported.
+#endif
+        ]])
+      ],[
+        curl_win32_file_api="win32_small_files"
+      ])
+    fi
+  fi
+  case "$curl_win32_file_api" in
+    win32_large_files)
+      AC_MSG_RESULT([yes (large file enabled)])
+      AC_DEFINE_UNQUOTED(USE_WIN32_LARGE_FILES, 1,
+        [Define to 1 if you are building a Windows target with large file support.])
+      AC_SUBST(USE_WIN32_LARGE_FILES, [1])
+      ;;
+    win32_small_files)
+      AC_MSG_RESULT([yes (large file disabled)])
+      AC_DEFINE_UNQUOTED(USE_WIN32_SMALL_FILES, 1,
+        [Define to 1 if you are building a Windows target without large file support.])
+      AC_SUBST(USE_WIN32_SMALL_FILES, [1])
+      ;;
+    *)
+      AC_MSG_RESULT([no])
+      ;;
+  esac
+])
+
+dnl CURL_CHECK_WIN32_CRYPTO
+dnl -------------------------------------------------
+dnl Check if curl's WIN32 crypto lib can be used
+
+AC_DEFUN([CURL_CHECK_WIN32_CRYPTO], [
+  AC_REQUIRE([CURL_CHECK_HEADER_WINCRYPT])dnl
+  AC_MSG_CHECKING([whether build target supports WIN32 crypto API])
+  curl_win32_crypto_api="no"
+  if test "$curl_cv_header_wincrypt_h" = "yes"; then
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+      ]],[[
+        HCRYPTPROV hCryptProv;
+        if(CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL,
+                               CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
+          CryptReleaseContext(hCryptProv, 0);
+        }
+      ]])
+    ],[
+      curl_win32_crypto_api="yes"
+    ])
+  fi
+  case "$curl_win32_crypto_api" in
+    yes)
+      AC_MSG_RESULT([yes])
+      AC_DEFINE_UNQUOTED(USE_WIN32_CRYPTO, 1,
+        [Define to 1 if you are building a Windows target with crypto API support.])
+      AC_SUBST(USE_WIN32_CRYPTO, [1])
+      ;;
+    *)
+      AC_MSG_RESULT([no])
+      ;;
+  esac
+])
+
+dnl CURL_EXPORT_PCDIR ($pcdir)
+dnl ------------------------
+dnl if $pcdir is not empty, set PKG_CONFIG_LIBDIR to $pcdir and export
+dnl
+dnl we need this macro since pkg-config distinguishes among empty and unset
+dnl variable while checking PKG_CONFIG_LIBDIR
+dnl
+
+AC_DEFUN([CURL_EXPORT_PCDIR], [
+    if test -n "$1"; then
+      PKG_CONFIG_LIBDIR="$1"
+      export PKG_CONFIG_LIBDIR
+    fi
+])
+
+dnl CURL_CHECK_PKGCONFIG ($module, [$pcdir])
+dnl ------------------------
+dnl search for the pkg-config tool. Set the PKGCONFIG variable to hold the
+dnl path to it, or 'no' if not found/present.
+dnl
+dnl If pkg-config is present, check that it has info about the $module or
+dnl return "no" anyway!
+dnl
+dnl Optionally PKG_CONFIG_LIBDIR may be given as $pcdir.
+dnl
+
+AC_DEFUN([CURL_CHECK_PKGCONFIG], [
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      AC_PATH_TOOL([PKGCONFIG], [pkg-config], [no],
+        [$PATH:/usr/bin:/usr/local/bin])
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      AC_MSG_CHECKING([for $1 options with pkg-config])
+      dnl ask pkg-config about $1
+      itexists=`CURL_EXPORT_PCDIR([$2]) dnl
+        $PKGCONFIG --exists $1 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+        dnl pkg-config does not have info about the given module! set the
+        dnl variable to 'no'
+        PKGCONFIG="no"
+        AC_MSG_RESULT([no])
+      else
+        AC_MSG_RESULT([found])
+      fi
+    fi
+])
+
+
+dnl CURL_GENERATE_CONFIGUREHELP_PM
+dnl -------------------------------------------------
+dnl Generate test harness configurehelp.pm module, defining and
+dnl initializing some perl variables with values which are known
+dnl when the configure script runs. For portability reasons, test
+dnl harness needs information on how to run the C preprocessor.
+
+AC_DEFUN([CURL_GENERATE_CONFIGUREHELP_PM], [
+  AC_REQUIRE([AC_PROG_CPP])dnl
+  tmp_cpp=`eval echo "$ac_cpp" 2>/dev/null`
+  if test -z "$tmp_cpp"; then
+    tmp_cpp='cpp'
+  fi
+  cat >./tests/configurehelp.pm <<_EOF
+[@%:@] This is a generated file.  Do not edit.
+
+package configurehelp;
+
+use strict;
+use warnings;
+use Exporter;
+
+use vars qw(
+    @ISA
+    @EXPORT_OK
+    \$Cpreprocessor
+    );
+
+@ISA = qw(Exporter);
+
+@EXPORT_OK = qw(
+    \$Cpreprocessor
+    );
+
+\$Cpreprocessor = '$tmp_cpp';
+
+1;
+_EOF
+])
+
+dnl CURL_CPP_P
+dnl
+dnl Check if $cpp -P should be used for extract define values due to gcc 5
+dnl splitting up strings and defines between line outputs. gcc by default
+dnl (without -P) will show TEST EINVAL TEST as
+dnl
+dnl # 13 "conftest.c"
+dnl TEST
+dnl # 13 "conftest.c" 3 4
+dnl     22
+dnl # 13 "conftest.c"
+dnl            TEST
+
+AC_DEFUN([CURL_CPP_P], [
+  AC_MSG_CHECKING([if cpp -P is needed])
+  AC_EGREP_CPP([TEST.*TEST], [
+ #include 
+TEST EINVAL TEST
+  ], [cpp=no], [cpp=yes])
+  AC_MSG_RESULT([$cpp])
+
+  dnl we need cpp -P so check if it works then
+  if test "x$cpp" = "xyes"; then
+    AC_MSG_CHECKING([if cpp -P works])
+    OLDCPPFLAGS=$CPPFLAGS
+    CPPFLAGS="$CPPFLAGS -P"
+    AC_EGREP_CPP([TEST.*TEST], [
+ #include 
+TEST EINVAL TEST
+    ], [cpp_p=yes], [cpp_p=no])
+    AC_MSG_RESULT([$cpp_p])
+
+    if test "x$cpp_p" = "xno"; then
+      AC_MSG_WARN([failed to figure out cpp -P alternative])
+      # without -P
+      CPPPFLAG=""
+    else
+      # with -P
+      CPPPFLAG="-P"
+    fi
+    dnl restore CPPFLAGS
+    CPPFLAGS=$OLDCPPFLAGS
+  else
+    # without -P
+    CPPPFLAG=""
+  fi
+])
+
+
+dnl CURL_DARWIN_CFLAGS
+dnl
+dnl Set -Werror=partial-availability to detect possible breaking code
+dnl with very low deployment targets.
+dnl
+
+AC_DEFUN([CURL_DARWIN_CFLAGS], [
+
+  tst_cflags="no"
+  case $host_os in
+    darwin*)
+      tst_cflags="yes"
+      ;;
+  esac
+
+  AC_MSG_CHECKING([for good-to-use Darwin CFLAGS])
+  AC_MSG_RESULT([$tst_cflags]);
+
+  if test "$tst_cflags" = "yes"; then
+    old_CFLAGS=$CFLAGS
+    CFLAGS="$CFLAGS -Werror=partial-availability"
+    AC_MSG_CHECKING([whether $CC accepts -Werror=partial-availability])
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
+      [AC_MSG_RESULT([yes])],
+      [AC_MSG_RESULT([no])
+      CFLAGS=$old_CFLAGS])
+  fi
+
+])
+
+
+dnl CURL_SUPPORTS_BUILTIN_AVAILABLE
+dnl
+dnl Check to see if the compiler supports __builtin_available. This built-in
+dnl compiler function first appeared in Apple LLVM 9.0.0. It's so new that, at
+dnl the time this macro was written, the function was not yet documented. Its
+dnl purpose is to return true if the code is running under a certain OS version
+dnl or later.
+
+AC_DEFUN([CURL_SUPPORTS_BUILTIN_AVAILABLE], [
+  AC_MSG_CHECKING([to see if the compiler supports __builtin_available()])
+  AC_COMPILE_IFELSE([
+    AC_LANG_PROGRAM([[
+#include 
+    ]],[[
+      if (__builtin_available(macOS 10.8, iOS 5.0, *)) {}
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    AC_DEFINE_UNQUOTED(HAVE_BUILTIN_AVAILABLE, 1,
+        [Define to 1 if you have the __builtin_available function.])
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+])
diff --git a/curl/aclocal.m4 b/curl/aclocal.m4
new file mode 100644
index 0000000..881fdf7
--- /dev/null
+++ b/curl/aclocal.m4
@@ -0,0 +1,1217 @@
+# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
+
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+m4_ifndef([AC_AUTOCONF_VERSION],
+  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
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+[m4_warning([this file was generated for autoconf 2.71.
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+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically 'autoreconf'.])])
+
+# Copyright (C) 2002-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
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+#
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+#
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_OUTPUT_DEPENDENCY_COMMANDS
+# ------------------------------
+AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
+[{
+  # Older Autoconf quotes --file arguments for eval, but not when files
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+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  AS_CASE([$CONFIG_FILES],
+          [*\'*], [eval set x "$CONFIG_FILES"],
+          [*], [set x $CONFIG_FILES])
+  shift
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
+  do
+    # Strip MF so we end up with the name of the file.
+    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`AS_DIRNAME(["$am_mf"])`
+    am_filepart=`AS_BASENAME(["$am_mf"])`
+    AM_RUN_LOG([cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles]) || am_rc=$?
+  done
+  if test $am_rc -ne 0; then
+    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE="gmake" (or whatever is
+    necessary).  You can also try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).])
+  fi
+  AS_UNSET([am_dirpart])
+  AS_UNSET([am_filepart])
+  AS_UNSET([am_mf])
+  AS_UNSET([am_rc])
+  rm -f conftest-deps.mk
+}
+])# _AM_OUTPUT_DEPENDENCY_COMMANDS
+
+
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+# -----------------------------
+# This macro should only be invoked once -- use via AC_REQUIRE.
+#
+# This code is only required when automatic dependency tracking is enabled.
+# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
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+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
+[AC_CONFIG_COMMANDS([depfiles],
+     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
+     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
+
+# Do all the work for Automake.                             -*- Autoconf -*-
+
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This macro actually does too much.  Some checks are only needed if
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+dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
+m4_define([AC_PROG_CC],
+m4_defn([AC_PROG_CC])
+[_AM_PROG_CC_C_O
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+
+# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
+# AM_INIT_AUTOMAKE([OPTIONS])
+# -----------------------------------------------
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+# and VERSION should now be passed to AC_INIT and removed from
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+# We support both call styles for the transition.  After
+# the next Automake release, Autoconf can make the AC_INIT
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+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_PREREQ([2.65])dnl
+m4_ifdef([_$0_ALREADY_INIT],
+  [m4_fatal([$0 expanded multiple times
+]m4_defn([_$0_ALREADY_INIT]))],
+  [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
+dnl Autoconf wants to disallow AM_ names.  We explicitly allow
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+AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
+AC_REQUIRE([AC_PROG_INSTALL])dnl
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
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+  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
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+    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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+
+# test whether we have cygpath
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+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
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+AC_SUBST([CYGPATH_W])
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[AC_DIAGNOSE([obsolete],
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+ AC_SUBST([VERSION], [$2])],
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+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(
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+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
+ AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
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+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
+AM_MISSING_PROG([AUTOCONF], [autoconf])
+AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
+AM_MISSING_PROG([AUTOHEADER], [autoheader])
+AM_MISSING_PROG([MAKEINFO], [makeinfo])
+AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+# For better backward compatibility.  To be removed once Automake 1.9.x
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+# 
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+# We need awk for the "check" target (and possibly the TAP driver).  The
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+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
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+AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
+		  [_AM_DEPENDENCIES([OBJCXX])],
+		  [m4_define([AC_PROG_OBJCXX],
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+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: 
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: .
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
+  fi
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+dnl The trailing newline in this macro's definition is deliberate, for
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+dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
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+
+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
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+# Copyright (C) 2001-2021 Free Software Foundation, Inc.
+#
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
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+  *\ * | *\	*)
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+fi
+AC_SUBST([install_sh])])
+
+# Copyright (C) 2003-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Check whether the underlying file-system supports filenames
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+AC_DEFUN([AM_SET_LEADING_DOT],
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+  am__leading_dot=.
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+  am__leading_dot=_
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+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
+# From Jim Meyering
+
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAINTAINER_MODE([DEFAULT-MODE])
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+AC_DEFUN([AM_MAINTAINER_MODE],
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+    [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
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+    [USE_MAINTAINER_MODE=$enableval],
+    [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
+  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
+  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
+  MAINT=$MAINTAINER_MODE_TRUE
+  AC_SUBST([MAINT])dnl
+]
+)
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAKE_INCLUDE()
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+# Check whether make has an 'include' directive that can support all
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+AC_DEFUN([AM_MAKE_INCLUDE],
+[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
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+.PHONY: am__doit
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+echo '.include "confinc.mk" # ignored' > confmf.BSD
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+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
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+      [AS_CASE([$s],
+          [BSD], [am__include='.include' am__quote='"'],
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+  if test "$am__include" != "#"; then
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+    break
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+rm -f confinc.* confmf.*
+AC_MSG_RESULT([${_am_result}])
+AC_SUBST([am__include])])
+AC_SUBST([am__quote])])
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+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# AM_MISSING_PROG(NAME, PROGRAM)
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+# AM_MISSING_HAS_RUN
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+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# _AM_MANGLE_OPTION(NAME)
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+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
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+# Copyright (C) 1999-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_CC_C_O
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+  for am_i in 1 2; do
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+# with or without modifications, as long as this notice is preserved.
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+# AM_RUN_LOG(COMMAND)
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+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+# AM_SANITY_CHECK
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+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$[*]" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$[*]" != "X $srcdir/configure conftest.file" \
+	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment])
+     fi
+     if test "$[2]" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT([yes])
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+AC_CONFIG_COMMANDS_PRE(
+  [AC_MSG_CHECKING([that generated files are newer than configure])
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# ("yes" being less verbose, "no" or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+  [--enable-silent-rules],
+  [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+  [--disable-silent-rules],
+  [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+   [am_cv_make_support_nested_variables],
+   [if AS_ECHO([['TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi])
+if test $am_cv_make_support_nested_variables = yes; then
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
+  AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004-2021 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+#
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AC_SUBST([AMTAR], ['$${TAR-tar}'])
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+
+m4_if([$1], [v7],
+  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
+
+  [m4_case([$1],
+    [ustar],
+     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+      if test $am_uid -le $am_max_uid; then
+         AC_MSG_RESULT([yes])
+      else
+         AC_MSG_RESULT([no])
+         _am_tools=none
+      fi
+      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+      if test $am_gid -le $am_max_gid; then
+         AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no])
+        _am_tools=none
+      fi],
+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        AM_RUN_LOG([$_am_tar --version]) && break
+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x $1 -w "$$tardir"'
+      am__tar_='pax -L -x $1 -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+      am__untar='cpio -i -H $1 -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_$1}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      AM_RUN_LOG([$am__untar /dev/null 2>&1 && break
+    fi
+  done
+  rm -rf conftest.dir
+
+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([m4/ax_compile_check_sizeof.m4])
+m4_include([m4/curl-amissl.m4])
+m4_include([m4/curl-bearssl.m4])
+m4_include([m4/curl-compilers.m4])
+m4_include([m4/curl-confopts.m4])
+m4_include([m4/curl-functions.m4])
+m4_include([m4/curl-gnutls.m4])
+m4_include([m4/curl-mbedtls.m4])
+m4_include([m4/curl-nss.m4])
+m4_include([m4/curl-openssl.m4])
+m4_include([m4/curl-override.m4])
+m4_include([m4/curl-reentrant.m4])
+m4_include([m4/curl-rustls.m4])
+m4_include([m4/curl-schannel.m4])
+m4_include([m4/curl-sectransp.m4])
+m4_include([m4/curl-sysconfig.m4])
+m4_include([m4/curl-wolfssl.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])
+m4_include([m4/xc-am-iface.m4])
+m4_include([m4/xc-cc-check.m4])
+m4_include([m4/xc-lt-iface.m4])
+m4_include([m4/xc-translit.m4])
+m4_include([m4/xc-val-flgs.m4])
+m4_include([m4/zz40-xc-ovr.m4])
+m4_include([m4/zz50-xc-ovr.m4])
+m4_include([m4/zz60-xc-ovr.m4])
+m4_include([acinclude.m4])
diff --git a/curl/buildconf b/curl/buildconf
new file mode 100644
index 0000000..4e4c17e
--- /dev/null
+++ b/curl/buildconf
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+echo "*** Do not use buildconf. Instead, just use: autoreconf -fi" >&2
+exec ${AUTORECONF:-autoreconf} -fi "${@}"
diff --git a/curl/buildconf.bat b/curl/buildconf.bat
new file mode 100644
index 0000000..13ae07e
--- /dev/null
+++ b/curl/buildconf.bat
@@ -0,0 +1,317 @@
+@echo off
+rem ***************************************************************************
+rem *                                  _   _ ____  _
+rem *  Project                     ___| | | |  _ \| |
+rem *                             / __| | | | |_) | |
+rem *                            | (__| |_| |  _ <| |___
+rem *                             \___|\___/|_| \_\_____|
+rem *
+rem * Copyright (C) 1998 - 2019, Daniel Stenberg, , et al.
+rem *
+rem * This software is licensed as described in the file COPYING, which
+rem * you should have received as part of this distribution. The terms
+rem * are also available at https://curl.se/docs/copyright.html.
+rem *
+rem * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+rem * copies of the Software, and permit persons to whom the Software is
+rem * furnished to do so, under the terms of the COPYING file.
+rem *
+rem * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+rem * KIND, either express or implied.
+rem *
+rem ***************************************************************************
+
+rem NOTES
+rem
+rem This batch file must be used to set up a git tree to build on systems where
+rem there is no autotools support (i.e. DOS and Windows).
+rem
+
+:begin
+  rem Set our variables
+  if "%OS%" == "Windows_NT" setlocal
+  set MODE=GENERATE
+
+  rem Switch to this batch file's directory
+  cd /d "%~0\.." 1>NUL 2>&1
+
+  rem Check we are running from a curl git repository
+  if not exist GIT-INFO goto norepo
+
+  rem Detect programs. HAVE_
+  rem When not found the variable is set undefined. The undefined pattern
+  rem allows for statements like "if not defined HAVE_PERL (command)"
+  groff --version NUL 2>&1
+  if errorlevel 1 (set HAVE_GROFF=) else (set HAVE_GROFF=Y)
+  nroff --version NUL 2>&1
+  if errorlevel 1 (set HAVE_NROFF=) else (set HAVE_NROFF=Y)
+  perl --version NUL 2>&1
+  if errorlevel 1 (set HAVE_PERL=) else (set HAVE_PERL=Y)
+  gzip --version NUL 2>&1
+  if errorlevel 1 (set HAVE_GZIP=) else (set HAVE_GZIP=Y)
+
+:parseArgs
+  if "%~1" == "" goto start
+
+  if /i "%~1" == "-clean" (
+    set MODE=CLEAN
+  ) else if /i "%~1" == "-?" (
+    goto syntax
+  ) else if /i "%~1" == "-h" (
+    goto syntax
+  ) else if /i "%~1" == "-help" (
+    goto syntax
+  ) else (
+    goto unknown
+  )
+
+  shift & goto parseArgs
+
+:start
+  if "%MODE%" == "GENERATE" (
+    echo.
+    echo Generating prerequisite files
+
+    call :generate
+    if errorlevel 3 goto nogenhugehelp
+    if errorlevel 2 goto nogenmakefile
+    if errorlevel 1 goto warning
+
+  ) else (
+    echo.
+    echo Removing prerequisite files
+
+    call :clean
+    if errorlevel 2 goto nocleanhugehelp
+    if errorlevel 1 goto nocleanmakefile
+  )
+
+  goto success
+
+rem Main generate function.
+rem
+rem Returns:
+rem
+rem 0 - success
+rem 1 - success with simplified tool_hugehelp.c
+rem 2 - failed to generate Makefile
+rem 3 - failed to generate tool_hugehelp.c
+rem
+:generate
+  if "%OS%" == "Windows_NT" setlocal
+  set BASIC_HUGEHELP=0
+
+  rem Create Makefile
+  echo * %CD%\Makefile
+  if exist Makefile.dist (
+    copy /Y Makefile.dist Makefile 1>NUL 2>&1
+    if errorlevel 1 (
+      if "%OS%" == "Windows_NT" endlocal
+      exit /B 2
+    )
+  )
+
+  rem Create tool_hugehelp.c
+  echo * %CD%\src\tool_hugehelp.c
+  call :genHugeHelp
+  if errorlevel 2 (
+    if "%OS%" == "Windows_NT" endlocal
+    exit /B 3
+  )
+  if errorlevel 1 (
+    set BASIC_HUGEHELP=1
+  )
+  cmd /c exit 0
+
+  rem Setup c-ares git tree
+  if exist ares\buildconf.bat (
+    echo.
+    echo Configuring c-ares build environment
+    cd ares
+    call buildconf.bat
+    cd ..
+  )
+
+  if "%BASIC_HUGEHELP%" == "1" (
+    if "%OS%" == "Windows_NT" endlocal
+    exit /B 1
+  )
+
+  if "%OS%" == "Windows_NT" endlocal
+  exit /B 0
+
+rem Main clean function.
+rem
+rem Returns:
+rem
+rem 0 - success
+rem 1 - failed to clean Makefile
+rem 2 - failed to clean tool_hugehelp.c
+rem
+:clean
+  rem Remove Makefile
+  echo * %CD%\Makefile
+  if exist Makefile (
+    del Makefile 2>NUL
+    if exist Makefile (
+      exit /B 1
+    )
+  )
+
+  rem Remove tool_hugehelp.c
+  echo * %CD%\src\tool_hugehelp.c
+  if exist src\tool_hugehelp.c (
+    del src\tool_hugehelp.c 2>NUL
+    if exist src\tool_hugehelp.c (
+      exit /B 2
+    )
+  )
+
+  exit /B
+
+rem Function to generate src\tool_hugehelp.c
+rem
+rem Returns:
+rem
+rem 0 - full tool_hugehelp.c generated
+rem 1 - simplified tool_hugehelp.c
+rem 2 - failure
+rem
+:genHugeHelp
+  if "%OS%" == "Windows_NT" setlocal
+  set LC_ALL=C
+  set ROFFCMD=
+  set BASIC=1
+
+  if defined HAVE_PERL (
+    if defined HAVE_GROFF (
+      set ROFFCMD=groff -mtty-char -Tascii -P-c -man
+    ) else if defined HAVE_NROFF (
+      set ROFFCMD=nroff -c -Tascii -man
+    )
+  )
+
+  if defined ROFFCMD (
+    echo #include "tool_setup.h"> src\tool_hugehelp.c
+    echo #include "tool_hugehelp.h">> src\tool_hugehelp.c
+
+    if defined HAVE_GZIP (
+      echo #ifndef HAVE_LIBZ>> src\tool_hugehelp.c
+    )
+
+    %ROFFCMD% docs\curl.1 2>NUL | perl src\mkhelp.pl docs\MANUAL >> src\tool_hugehelp.c
+    if defined HAVE_GZIP (
+      echo #else>> src\tool_hugehelp.c
+      %ROFFCMD% docs\curl.1 2>NUL | perl src\mkhelp.pl -c docs\MANUAL >> src\tool_hugehelp.c
+      echo #endif /^* HAVE_LIBZ ^*/>> src\tool_hugehelp.c
+    )
+
+    set BASIC=0
+  ) else (
+    if exist src\tool_hugehelp.c.cvs (
+      copy /Y src\tool_hugehelp.c.cvs src\tool_hugehelp.c 1>NUL 2>&1
+    ) else (
+      echo #include "tool_setup.h"> src\tool_hugehelp.c
+      echo #include "tool_hugehelp.h">> src\tool_hugehelp.c
+      echo.>> src\tool_hugehelp.c
+      echo void hugehelp(void^)>> src\tool_hugehelp.c
+      echo {>> src\tool_hugehelp.c
+      echo #ifdef USE_MANUAL>> src\tool_hugehelp.c
+      echo   fputs("Built-in manual not included\n", stdout^);>> src\tool_hugehelp.c
+      echo #endif>> src\tool_hugehelp.c
+      echo }>> src\tool_hugehelp.c
+    )
+  )
+
+  findstr "/C:void hugehelp(void)" src\tool_hugehelp.c 1>NUL 2>&1
+  if errorlevel 1 (
+    if "%OS%" == "Windows_NT" endlocal
+    exit /B 2
+  )
+
+  if "%BASIC%" == "1" (
+    if "%OS%" == "Windows_NT" endlocal
+    exit /B 1
+  )
+
+  if "%OS%" == "Windows_NT" endlocal
+  exit /B 0
+
+rem Function to clean-up local variables under DOS, Windows 3.x and
+rem Windows 9x as setlocal isn't available until Windows NT
+rem
+:dosCleanup
+  set MODE=
+  set HAVE_GROFF=
+  set HAVE_NROFF=
+  set HAVE_PERL=
+  set HAVE_GZIP=
+  set BASIC_HUGEHELP=
+  set LC_ALL
+  set ROFFCMD=
+  set BASIC=
+
+  exit /B
+
+:syntax
+  rem Display the help
+  echo.
+  echo Usage: buildconf [-clean]
+  echo.
+  echo -clean    - Removes the files
+  goto error
+
+:unknown
+  echo.
+  echo Error: Unknown argument '%1'
+  goto error
+
+:norepo
+  echo.
+  echo Error: This batch file should only be used with a curl git repository
+  goto error
+
+:nogenmakefile
+  echo.
+  echo Error: Unable to generate Makefile
+  goto error
+
+:nogenhugehelp
+  echo.
+  echo Error: Unable to generate src\tool_hugehelp.c
+  goto error
+
+:nocleanmakefile
+  echo.
+  echo Error: Unable to clean Makefile
+  goto error
+
+:nocleanhugehelp
+  echo.
+  echo Error: Unable to clean src\tool_hugehelp.c
+  goto error
+
+:warning
+  echo.
+  echo Warning: The curl manual could not be integrated in the source. This means when
+  echo you build curl the manual will not be available (curl --man^). Integration of
+  echo the manual is not required and a summary of the options will still be available
+  echo (curl --help^). To integrate the manual your PATH is required to have
+  echo groff/nroff, perl and optionally gzip for compression.
+  goto success
+
+:error
+  if "%OS%" == "Windows_NT" (
+    endlocal
+  ) else (
+    call :dosCleanup
+  )
+  exit /B 1
+
+:success
+  if "%OS%" == "Windows_NT" (
+    endlocal
+  ) else (
+    call :dosCleanup
+  )
+  exit /B 0
diff --git a/curl/compile b/curl/compile
new file mode 100644
index 0000000..df363c8
--- /dev/null
+++ b/curl/compile
@@ -0,0 +1,348 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2021 Free Software Foundation, Inc.
+# Written by Tom Tromey .
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to  or send patches to
+# .
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN* | MSYS*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/* | msys/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to .
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/curl/config.guess b/curl/config.guess
new file mode 100644
index 0000000..7f76b62
--- /dev/null
+++ b/curl/config.guess
@@ -0,0 +1,1754 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2022 Free Software Foundation, Inc.
+
+# shellcheck disable=SC2006,SC2268 # see below for rationale
+
+timestamp='2022-01-09'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see .
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/cgit/config.git/plain/config.guess
+#
+# Please send patches to .
+
+
+# The "shellcheck disable" line above the timestamp inhibits complaints
+# about features and limitations of the classic Bourne shell that were
+# superseded or lifted in POSIX.  However, this script identifies a wide
+# variety of pre-POSIX systems that do not have POSIX shells at all, and
+# even some reasonably current systems (Solaris 10 as case-in-point) still
+# have a pre-POSIX /bin/sh.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to ."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2022 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+# Just in case it came from the environment.
+GUESS=
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+tmp=
+# shellcheck disable=SC2172
+trap 'test -z "$tmp" || rm -fr "$tmp"' 0 1 2 13 15
+
+set_cc_for_build() {
+    # prevent multiple calls if $tmp is already set
+    test "$tmp" && return 0
+    : "${TMPDIR=/tmp}"
+    # shellcheck disable=SC2039,SC3028
+    { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+	{ test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir "$tmp" 2>/dev/null) ; } ||
+	{ tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir "$tmp" 2>/dev/null) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+	{ echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; }
+    dummy=$tmp/dummy
+    case ${CC_FOR_BUILD-},${HOST_CC-},${CC-} in
+	,,)    echo "int x;" > "$dummy.c"
+	       for driver in cc gcc c89 c99 ; do
+		   if ($driver -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
+		       CC_FOR_BUILD=$driver
+		       break
+		   fi
+	       done
+	       if test x"$CC_FOR_BUILD" = x ; then
+		   CC_FOR_BUILD=no_compiler_found
+	       fi
+	       ;;
+	,,*)   CC_FOR_BUILD=$CC ;;
+	,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+    esac
+}
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if test -f /.attbin/uname ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case $UNAME_SYSTEM in
+Linux|GNU|GNU/*)
+	LIBC=unknown
+
+	set_cc_for_build
+	cat <<-EOF > "$dummy.c"
+	#include 
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#elif defined(__GLIBC__)
+	LIBC=gnu
+	#else
+	#include 
+	/* First heuristic to detect musl libc.  */
+	#ifdef __DEFINED_va_list
+	LIBC=musl
+	#endif
+	#endif
+	EOF
+	cc_set_libc=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
+	eval "$cc_set_libc"
+
+	# Second heuristic to detect musl libc.
+	if [ "$LIBC" = unknown ] &&
+	   command -v ldd >/dev/null &&
+	   ldd --version 2>&1 | grep -q ^musl; then
+		LIBC=musl
+	fi
+
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	if [ "$LIBC" = unknown ]; then
+		LIBC=gnu
+	fi
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case $UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    /sbin/sysctl -n hw.machine_arch 2>/dev/null || \
+	    /usr/sbin/sysctl -n hw.machine_arch 2>/dev/null || \
+	    echo unknown)`
+	case $UNAME_MACHINE_ARCH in
+	    aarch64eb) machine=aarch64_be-unknown ;;
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine=${arch}${endian}-unknown
+		;;
+	    *) machine=$UNAME_MACHINE_ARCH-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently (or will in the future) and ABI.
+	case $UNAME_MACHINE_ARCH in
+	    earm*)
+		os=netbsdelf
+		;;
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# Determine ABI tags.
+	case $UNAME_MACHINE_ARCH in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case $UNAME_VERSION in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	GUESS=$machine-${os}${release}${abi-}
+	;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	GUESS=$UNAME_MACHINE_ARCH-unknown-bitrig$UNAME_RELEASE
+	;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	GUESS=$UNAME_MACHINE_ARCH-unknown-openbsd$UNAME_RELEASE
+	;;
+    *:SecBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/SecBSD.//'`
+	GUESS=$UNAME_MACHINE_ARCH-unknown-secbsd$UNAME_RELEASE
+	;;
+    *:LibertyBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+	GUESS=$UNAME_MACHINE_ARCH-unknown-libertybsd$UNAME_RELEASE
+	;;
+    *:MidnightBSD:*:*)
+	GUESS=$UNAME_MACHINE-unknown-midnightbsd$UNAME_RELEASE
+	;;
+    *:ekkoBSD:*:*)
+	GUESS=$UNAME_MACHINE-unknown-ekkobsd$UNAME_RELEASE
+	;;
+    *:SolidBSD:*:*)
+	GUESS=$UNAME_MACHINE-unknown-solidbsd$UNAME_RELEASE
+	;;
+    *:OS108:*:*)
+	GUESS=$UNAME_MACHINE-unknown-os108_$UNAME_RELEASE
+	;;
+    macppc:MirBSD:*:*)
+	GUESS=powerpc-unknown-mirbsd$UNAME_RELEASE
+	;;
+    *:MirBSD:*:*)
+	GUESS=$UNAME_MACHINE-unknown-mirbsd$UNAME_RELEASE
+	;;
+    *:Sortix:*:*)
+	GUESS=$UNAME_MACHINE-unknown-sortix
+	;;
+    *:Twizzler:*:*)
+	GUESS=$UNAME_MACHINE-unknown-twizzler
+	;;
+    *:Redox:*:*)
+	GUESS=$UNAME_MACHINE-unknown-redox
+	;;
+    mips:OSF1:*.*)
+	GUESS=mips-dec-osf1
+	;;
+    alpha:OSF1:*:*)
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	trap '' 0
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case $ALPHA_CPU_TYPE in
+	    "EV4 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE=alpha ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE=alphaev5 ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE=alphaev56 ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE=alphapca56 ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE=alphapca57 ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE=alphaev6 ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE=alphaev67 ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE=alphaev69 ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE=alphaev7 ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE=alphaev79 ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	OSF_REL=`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	GUESS=$UNAME_MACHINE-dec-osf$OSF_REL
+	;;
+    Amiga*:UNIX_System_V:4.0:*)
+	GUESS=m68k-unknown-sysv4
+	;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	GUESS=$UNAME_MACHINE-unknown-amigaos
+	;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	GUESS=$UNAME_MACHINE-unknown-morphos
+	;;
+    *:OS/390:*:*)
+	GUESS=i370-ibm-openedition
+	;;
+    *:z/VM:*:*)
+	GUESS=s390-ibm-zvmoe
+	;;
+    *:OS400:*:*)
+	GUESS=powerpc-ibm-os400
+	;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	GUESS=arm-acorn-riscix$UNAME_RELEASE
+	;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	GUESS=arm-unknown-riscos
+	;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	GUESS=hppa1.1-hitachi-hiuxmpp
+	;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	case `(/bin/universe) 2>/dev/null` in
+	    att) GUESS=pyramid-pyramid-sysv3 ;;
+	    *)   GUESS=pyramid-pyramid-bsd   ;;
+	esac
+	;;
+    NILE*:*:*:dcosx)
+	GUESS=pyramid-pyramid-svr4
+	;;
+    DRS?6000:unix:4.0:6*)
+	GUESS=sparc-icl-nx6
+	;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) GUESS=sparc-icl-nx7 ;;
+	esac
+	;;
+    s390x:SunOS:*:*)
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=$UNAME_MACHINE-ibm-solaris2$SUN_REL
+	;;
+    sun4H:SunOS:5.*:*)
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=sparc-hal-solaris2$SUN_REL
+	;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=sparc-sun-solaris2$SUN_REL
+	;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	GUESS=i386-pc-auroraux$UNAME_RELEASE
+	;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	set_cc_for_build
+	SUN_ARCH=i386
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if test "$CC_FOR_BUILD" != no_compiler_found; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS="" $CC_FOR_BUILD -m64 -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH=x86_64
+	    fi
+	fi
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=$SUN_ARCH-pc-solaris2$SUN_REL
+	;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=sparc-sun-solaris3$SUN_REL
+	;;
+    sun4*:SunOS:*:*)
+	case `/usr/bin/arch -k` in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/-/_/'`
+	GUESS=sparc-sun-sunos$SUN_REL
+	;;
+    sun3*:SunOS:*:*)
+	GUESS=m68k-sun-sunos$UNAME_RELEASE
+	;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
+	case `/bin/arch` in
+	    sun3)
+		GUESS=m68k-sun-sunos$UNAME_RELEASE
+		;;
+	    sun4)
+		GUESS=sparc-sun-sunos$UNAME_RELEASE
+		;;
+	esac
+	;;
+    aushp:SunOS:*:*)
+	GUESS=sparc-auspex-sunos$UNAME_RELEASE
+	;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	GUESS=m68k-atari-mint$UNAME_RELEASE
+	;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	GUESS=m68k-atari-mint$UNAME_RELEASE
+	;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	GUESS=m68k-atari-mint$UNAME_RELEASE
+	;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	GUESS=m68k-milan-mint$UNAME_RELEASE
+	;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	GUESS=m68k-hades-mint$UNAME_RELEASE
+	;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	GUESS=m68k-unknown-mint$UNAME_RELEASE
+	;;
+    m68k:machten:*:*)
+	GUESS=m68k-apple-machten$UNAME_RELEASE
+	;;
+    powerpc:machten:*:*)
+	GUESS=powerpc-apple-machten$UNAME_RELEASE
+	;;
+    RISC*:Mach:*:*)
+	GUESS=mips-dec-mach_bsd4.3
+	;;
+    RISC*:ULTRIX:*:*)
+	GUESS=mips-dec-ultrix$UNAME_RELEASE
+	;;
+    VAX*:ULTRIX*:*:*)
+	GUESS=vax-dec-ultrix$UNAME_RELEASE
+	;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	GUESS=clipper-intergraph-clix$UNAME_RELEASE
+	;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	set_cc_for_build
+	sed 's/^	//' << EOF > "$dummy.c"
+#ifdef __cplusplus
+#include   /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+	  dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	GUESS=mips-mips-riscos$UNAME_RELEASE
+	;;
+    Motorola:PowerMAX_OS:*:*)
+	GUESS=powerpc-motorola-powermax
+	;;
+    Motorola:*:4.3:PL8-*)
+	GUESS=powerpc-harris-powermax
+	;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	GUESS=powerpc-harris-powermax
+	;;
+    Night_Hawk:Power_UNIX:*:*)
+	GUESS=powerpc-harris-powerunix
+	;;
+    m88k:CX/UX:7*:*)
+	GUESS=m88k-harris-cxux7
+	;;
+    m88k:*:4*:R4*)
+	GUESS=m88k-motorola-sysv4
+	;;
+    m88k:*:3*:R3*)
+	GUESS=m88k-motorola-sysv3
+	;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if test "$UNAME_PROCESSOR" = mc88100 || test "$UNAME_PROCESSOR" = mc88110
+	then
+	    if test "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx || \
+	       test "$TARGET_BINARY_INTERFACE"x = x
+	    then
+		GUESS=m88k-dg-dgux$UNAME_RELEASE
+	    else
+		GUESS=m88k-dg-dguxbcs$UNAME_RELEASE
+	    fi
+	else
+	    GUESS=i586-dg-dgux$UNAME_RELEASE
+	fi
+	;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	GUESS=m88k-dolphin-sysv3
+	;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	GUESS=m88k-motorola-sysv3
+	;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	GUESS=m88k-tektronix-sysv3
+	;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	GUESS=m68k-tektronix-bsd
+	;;
+    *:IRIX*:*:*)
+	IRIX_REL=`echo "$UNAME_RELEASE" | sed -e 's/-/_/g'`
+	GUESS=mips-sgi-irix$IRIX_REL
+	;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	GUESS=romp-ibm-aix    # uname -m gives an 8 hex-code CPU id
+	;;                    # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	GUESS=i386-ibm-aix
+	;;
+    ia64:AIX:*:*)
+	if test -x /usr/bin/oslevel ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=$UNAME_VERSION.$UNAME_RELEASE
+	fi
+	GUESS=$UNAME_MACHINE-ibm-aix$IBM_REV
+	;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		set_cc_for_build
+		sed 's/^		//' << EOF > "$dummy.c"
+		#include 
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
+		then
+			GUESS=$SYSTEM_NAME
+		else
+			GUESS=rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		GUESS=rs6000-ibm-aix3.2.4
+	else
+		GUESS=rs6000-ibm-aix3.2
+	fi
+	;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if test -x /usr/bin/lslpp ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | \
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+	else
+		IBM_REV=$UNAME_VERSION.$UNAME_RELEASE
+	fi
+	GUESS=$IBM_ARCH-ibm-aix$IBM_REV
+	;;
+    *:AIX:*:*)
+	GUESS=rs6000-ibm-aix
+	;;
+    ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
+	GUESS=romp-ibm-bsd4.4
+	;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	GUESS=romp-ibm-bsd$UNAME_RELEASE    # 4.3 with uname added to
+	;;                                  # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	GUESS=rs6000-bull-bosx
+	;;
+    DPX/2?00:B.O.S.:*:*)
+	GUESS=m68k-bull-sysv3
+	;;
+    9000/[34]??:4.3bsd:1.*:*)
+	GUESS=m68k-hp-bsd
+	;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	GUESS=m68k-hp-bsd4.4
+	;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*.[0B]*//'`
+	case $UNAME_MACHINE in
+	    9000/31?)            HP_ARCH=m68000 ;;
+	    9000/[34]??)         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if test -x /usr/bin/getconf; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case $sc_cpu_version in
+		      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case $sc_kernel_bits in
+			  32) HP_ARCH=hppa2.0n ;;
+			  64) HP_ARCH=hppa2.0w ;;
+			  '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if test "$HP_ARCH" = ""; then
+		    set_cc_for_build
+		    sed 's/^		//' << EOF > "$dummy.c"
+
+		#define _HPUX_SOURCE
+		#include 
+		#include 
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if test "$HP_ARCH" = hppa2.0w
+	then
+	    set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH=hppa2.0w
+	    else
+		HP_ARCH=hppa64
+	    fi
+	fi
+	GUESS=$HP_ARCH-hp-hpux$HPUX_REV
+	;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*.[0B]*//'`
+	GUESS=ia64-hp-hpux$HPUX_REV
+	;;
+    3050*:HI-UX:*:*)
+	set_cc_for_build
+	sed 's/^	//' << EOF > "$dummy.c"
+	#include 
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	GUESS=unknown-hitachi-hiuxwe2
+	;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
+	GUESS=hppa1.1-hp-bsd
+	;;
+    9000/8??:4.3bsd:*:*)
+	GUESS=hppa1.0-hp-bsd
+	;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	GUESS=hppa1.0-hp-mpeix
+	;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
+	GUESS=hppa1.1-hp-osf
+	;;
+    hp8??:OSF1:*:*)
+	GUESS=hppa1.0-hp-osf
+	;;
+    i*86:OSF1:*:*)
+	if test -x /usr/sbin/sysversion ; then
+	    GUESS=$UNAME_MACHINE-unknown-osf1mk
+	else
+	    GUESS=$UNAME_MACHINE-unknown-osf1
+	fi
+	;;
+    parisc*:Lites*:*:*)
+	GUESS=hppa1.1-hp-lites
+	;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	GUESS=c1-convex-bsd
+	;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	GUESS=c34-convex-bsd
+	;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	GUESS=c38-convex-bsd
+	;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	GUESS=c4-convex-bsd
+	;;
+    CRAY*Y-MP:*:*:*)
+	CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+	GUESS=ymp-cray-unicos$CRAY_REL
+	;;
+    CRAY*[A-Z]90:*:*:*)
+	echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+	GUESS=t90-cray-unicos$CRAY_REL
+	;;
+    CRAY*T3E:*:*:*)
+	CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+	GUESS=alphaev5-cray-unicosmk$CRAY_REL
+	;;
+    CRAY*SV1:*:*:*)
+	CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+	GUESS=sv1-cray-unicos$CRAY_REL
+	;;
+    *:UNICOS/mp:*:*)
+	CRAY_REL=`echo "$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'`
+	GUESS=craynv-cray-unicosmp$CRAY_REL
+	;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+	GUESS=${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}
+	;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+	GUESS=sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}
+	;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	GUESS=$UNAME_MACHINE-pc-bsdi$UNAME_RELEASE
+	;;
+    sparc*:BSD/OS:*:*)
+	GUESS=sparc-unknown-bsdi$UNAME_RELEASE
+	;;
+    *:BSD/OS:*:*)
+	GUESS=$UNAME_MACHINE-unknown-bsdi$UNAME_RELEASE
+	;;
+    arm:FreeBSD:*:*)
+	UNAME_PROCESSOR=`uname -p`
+	set_cc_for_build
+	if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_PCS_VFP
+	then
+	    FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+	    GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL-gnueabi
+	else
+	    FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+	    GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL-gnueabihf
+	fi
+	;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case $UNAME_PROCESSOR in
+	    amd64)
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
+	esac
+	FREEBSD_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+	GUESS=$UNAME_PROCESSOR-unknown-freebsd$FREEBSD_REL
+	;;
+    i*:CYGWIN*:*)
+	GUESS=$UNAME_MACHINE-pc-cygwin
+	;;
+    *:MINGW64*:*)
+	GUESS=$UNAME_MACHINE-pc-mingw64
+	;;
+    *:MINGW*:*)
+	GUESS=$UNAME_MACHINE-pc-mingw32
+	;;
+    *:MSYS*:*)
+	GUESS=$UNAME_MACHINE-pc-msys
+	;;
+    i*:PW*:*)
+	GUESS=$UNAME_MACHINE-pc-pw32
+	;;
+    *:SerenityOS:*:*)
+        GUESS=$UNAME_MACHINE-pc-serenity
+        ;;
+    *:Interix*:*)
+	case $UNAME_MACHINE in
+	    x86)
+		GUESS=i586-pc-interix$UNAME_RELEASE
+		;;
+	    authenticamd | genuineintel | EM64T)
+		GUESS=x86_64-unknown-interix$UNAME_RELEASE
+		;;
+	    IA64)
+		GUESS=ia64-unknown-interix$UNAME_RELEASE
+		;;
+	esac ;;
+    i*:UWIN*:*)
+	GUESS=$UNAME_MACHINE-pc-uwin
+	;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	GUESS=x86_64-pc-cygwin
+	;;
+    prep*:SunOS:5.*:*)
+	SUN_REL=`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`
+	GUESS=powerpcle-unknown-solaris2$SUN_REL
+	;;
+    *:GNU:*:*)
+	# the GNU system
+	GNU_ARCH=`echo "$UNAME_MACHINE" | sed -e 's,[-/].*$,,'`
+	GNU_REL=`echo "$UNAME_RELEASE" | sed -e 's,/.*$,,'`
+	GUESS=$GNU_ARCH-unknown-$LIBC$GNU_REL
+	;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	GNU_SYS=`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"`
+	GNU_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+	GUESS=$UNAME_MACHINE-unknown-$GNU_SYS$GNU_REL-$LIBC
+	;;
+    *:Minix:*:*)
+	GUESS=$UNAME_MACHINE-unknown-minix
+	;;
+    aarch64:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' /proc/cpuinfo 2>/dev/null` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    arc:Linux:*:* | arceb:Linux:*:* | arc32:Linux:*:* | arc64:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    arm*:Linux:*:*)
+	set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		GUESS=$UNAME_MACHINE-unknown-linux-${LIBC}eabi
+	    else
+		GUESS=$UNAME_MACHINE-unknown-linux-${LIBC}eabihf
+	    fi
+	fi
+	;;
+    avr32*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    cris:Linux:*:*)
+	GUESS=$UNAME_MACHINE-axis-linux-$LIBC
+	;;
+    crisv32:Linux:*:*)
+	GUESS=$UNAME_MACHINE-axis-linux-$LIBC
+	;;
+    e2k:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    frv:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    hexagon:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    i*86:Linux:*:*)
+	GUESS=$UNAME_MACHINE-pc-linux-$LIBC
+	;;
+    ia64:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    k1om:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    m32r*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    m68*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	set_cc_for_build
+	IS_GLIBC=0
+	test x"${LIBC}" = xgnu && IS_GLIBC=1
+	sed 's/^	//' << EOF > "$dummy.c"
+	#undef CPU
+	#undef mips
+	#undef mipsel
+	#undef mips64
+	#undef mips64el
+	#if ${IS_GLIBC} && defined(_ABI64)
+	LIBCABI=gnuabi64
+	#else
+	#if ${IS_GLIBC} && defined(_ABIN32)
+	LIBCABI=gnuabin32
+	#else
+	LIBCABI=${LIBC}
+	#endif
+	#endif
+
+	#if ${IS_GLIBC} && defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa64r6
+	#else
+	#if ${IS_GLIBC} && !defined(__mips64) && defined(__mips_isa_rev) && __mips_isa_rev>=6
+	CPU=mipsisa32r6
+	#else
+	#if defined(__mips64)
+	CPU=mips64
+	#else
+	CPU=mips
+	#endif
+	#endif
+	#endif
+
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	MIPS_ENDIAN=el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	MIPS_ENDIAN=
+	#else
+	MIPS_ENDIAN=
+	#endif
+	#endif
+EOF
+	cc_set_vars=`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`
+	eval "$cc_set_vars"
+	test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; }
+	;;
+    mips64el:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    openrisc*:Linux:*:*)
+	GUESS=or1k-unknown-linux-$LIBC
+	;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    padre:Linux:*:*)
+	GUESS=sparc-unknown-linux-$LIBC
+	;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	GUESS=hppa64-unknown-linux-$LIBC
+	;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) GUESS=hppa1.1-unknown-linux-$LIBC ;;
+	  PA8*) GUESS=hppa2.0-unknown-linux-$LIBC ;;
+	  *)    GUESS=hppa-unknown-linux-$LIBC ;;
+	esac
+	;;
+    ppc64:Linux:*:*)
+	GUESS=powerpc64-unknown-linux-$LIBC
+	;;
+    ppc:Linux:*:*)
+	GUESS=powerpc-unknown-linux-$LIBC
+	;;
+    ppc64le:Linux:*:*)
+	GUESS=powerpc64le-unknown-linux-$LIBC
+	;;
+    ppcle:Linux:*:*)
+	GUESS=powerpcle-unknown-linux-$LIBC
+	;;
+    riscv32:Linux:*:* | riscv32be:Linux:*:* | riscv64:Linux:*:* | riscv64be:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	GUESS=$UNAME_MACHINE-ibm-linux-$LIBC
+	;;
+    sh64*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    sh*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    tile*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    vax:Linux:*:*)
+	GUESS=$UNAME_MACHINE-dec-linux-$LIBC
+	;;
+    x86_64:Linux:*:*)
+	set_cc_for_build
+	LIBCABI=$LIBC
+	if test "$CC_FOR_BUILD" != no_compiler_found; then
+	    if (echo '#ifdef __ILP32__'; echo IS_X32; echo '#endif') | \
+		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_X32 >/dev/null
+	    then
+		LIBCABI=${LIBC}x32
+	    fi
+	fi
+	GUESS=$UNAME_MACHINE-pc-linux-$LIBCABI
+	;;
+    xtensa*:Linux:*:*)
+	GUESS=$UNAME_MACHINE-unknown-linux-$LIBC
+	;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	GUESS=i386-sequent-sysv4
+	;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	GUESS=$UNAME_MACHINE-pc-sysv4.2uw$UNAME_VERSION
+	;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	GUESS=$UNAME_MACHINE-pc-os2-emx
+	;;
+    i*86:XTS-300:*:STOP)
+	GUESS=$UNAME_MACHINE-unknown-stop
+	;;
+    i*86:atheos:*:*)
+	GUESS=$UNAME_MACHINE-unknown-atheos
+	;;
+    i*86:syllable:*:*)
+	GUESS=$UNAME_MACHINE-pc-syllable
+	;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	GUESS=i386-unknown-lynxos$UNAME_RELEASE
+	;;
+    i*86:*DOS:*:*)
+	GUESS=$UNAME_MACHINE-pc-msdosdjgpp
+	;;
+    i*86:*:4.*:*)
+	UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		GUESS=$UNAME_MACHINE-univel-sysv$UNAME_REL
+	else
+		GUESS=$UNAME_MACHINE-pc-sysv$UNAME_REL
+	fi
+	;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	GUESS=$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		GUESS=$UNAME_MACHINE-pc-sco$UNAME_REL
+	else
+		GUESS=$UNAME_MACHINE-pc-sysv32
+	fi
+	;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configure will decide that
+	# this is a cross-build.
+	GUESS=i586-pc-msdosdjgpp
+	;;
+    Intel:Mach:3*:*)
+	GUESS=i386-pc-mach3
+	;;
+    paragon:*:*:*)
+	GUESS=i860-intel-osf1
+	;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  GUESS=i860-stardent-sysv$UNAME_RELEASE    # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  GUESS=i860-unknown-sysv$UNAME_RELEASE     # Unknown i860-SVR4
+	fi
+	;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	GUESS=m68010-convergent-sysv
+	;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	GUESS=m68k-convergent-sysv
+	;;
+    M680?0:D-NIX:5.3:*)
+	GUESS=m68k-diab-dnix
+	;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	GUESS=m68k-unknown-lynxos$UNAME_RELEASE
+	;;
+    mc68030:UNIX_System_V:4.*:*)
+	GUESS=m68k-atari-sysv4
+	;;
+    TSUNAMI:LynxOS:2.*:*)
+	GUESS=sparc-unknown-lynxos$UNAME_RELEASE
+	;;
+    rs6000:LynxOS:2.*:*)
+	GUESS=rs6000-unknown-lynxos$UNAME_RELEASE
+	;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	GUESS=powerpc-unknown-lynxos$UNAME_RELEASE
+	;;
+    SM[BE]S:UNIX_SV:*:*)
+	GUESS=mips-dde-sysv$UNAME_RELEASE
+	;;
+    RM*:ReliantUNIX-*:*:*)
+	GUESS=mips-sni-sysv4
+	;;
+    RM*:SINIX-*:*:*)
+	GUESS=mips-sni-sysv4
+	;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		GUESS=$UNAME_MACHINE-sni-sysv4
+	else
+		GUESS=ns32k-sni-sysv
+	fi
+	;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says 
+	GUESS=i586-unisys-sysv4
+	;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes .
+	# How about differentiating between stratus architectures? -djm
+	GUESS=hppa1.1-stratus-sysv4
+	;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	GUESS=i860-stratus-sysv4
+	;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	GUESS=$UNAME_MACHINE-stratus-vos
+	;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	GUESS=hppa1.1-stratus-vos
+	;;
+    mc68*:A/UX:*:*)
+	GUESS=m68k-apple-aux$UNAME_RELEASE
+	;;
+    news*:NEWS-OS:6*:*)
+	GUESS=mips-sony-newsos6
+	;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if test -d /usr/nec; then
+		GUESS=mips-nec-sysv$UNAME_RELEASE
+	else
+		GUESS=mips-unknown-sysv$UNAME_RELEASE
+	fi
+	;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	GUESS=powerpc-be-beos
+	;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	GUESS=powerpc-apple-beos
+	;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	GUESS=i586-pc-beos
+	;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	GUESS=i586-pc-haiku
+	;;
+    x86_64:Haiku:*:*)
+	GUESS=x86_64-unknown-haiku
+	;;
+    SX-4:SUPER-UX:*:*)
+	GUESS=sx4-nec-superux$UNAME_RELEASE
+	;;
+    SX-5:SUPER-UX:*:*)
+	GUESS=sx5-nec-superux$UNAME_RELEASE
+	;;
+    SX-6:SUPER-UX:*:*)
+	GUESS=sx6-nec-superux$UNAME_RELEASE
+	;;
+    SX-7:SUPER-UX:*:*)
+	GUESS=sx7-nec-superux$UNAME_RELEASE
+	;;
+    SX-8:SUPER-UX:*:*)
+	GUESS=sx8-nec-superux$UNAME_RELEASE
+	;;
+    SX-8R:SUPER-UX:*:*)
+	GUESS=sx8r-nec-superux$UNAME_RELEASE
+	;;
+    SX-ACE:SUPER-UX:*:*)
+	GUESS=sxace-nec-superux$UNAME_RELEASE
+	;;
+    Power*:Rhapsody:*:*)
+	GUESS=powerpc-apple-rhapsody$UNAME_RELEASE
+	;;
+    *:Rhapsody:*:*)
+	GUESS=$UNAME_MACHINE-apple-rhapsody$UNAME_RELEASE
+	;;
+    arm64:Darwin:*:*)
+	GUESS=aarch64-apple-darwin$UNAME_RELEASE
+	;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p`
+	case $UNAME_PROCESSOR in
+	    unknown) UNAME_PROCESSOR=powerpc ;;
+	esac
+	if command -v xcode-select > /dev/null 2> /dev/null && \
+		! xcode-select --print-path > /dev/null 2> /dev/null ; then
+	    # Avoid executing cc if there is no toolchain installed as
+	    # cc will be a stub that puts up a graphical alert
+	    # prompting the user to install developer tools.
+	    CC_FOR_BUILD=no_compiler_found
+	else
+	    set_cc_for_build
+	fi
+	if test "$CC_FOR_BUILD" != no_compiler_found; then
+	    if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		   (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		   grep IS_64BIT_ARCH >/dev/null
+	    then
+		case $UNAME_PROCESSOR in
+		    i386) UNAME_PROCESSOR=x86_64 ;;
+		    powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		esac
+	    fi
+	    # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+	    if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		   (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		   grep IS_PPC >/dev/null
+	    then
+		UNAME_PROCESSOR=powerpc
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # uname -m returns i386 or x86_64
+	    UNAME_PROCESSOR=$UNAME_MACHINE
+	fi
+	GUESS=$UNAME_PROCESSOR-apple-darwin$UNAME_RELEASE
+	;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = x86; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	GUESS=$UNAME_PROCESSOR-$UNAME_MACHINE-nto-qnx$UNAME_RELEASE
+	;;
+    *:QNX:*:4*)
+	GUESS=i386-pc-qnx
+	;;
+    NEO-*:NONSTOP_KERNEL:*:*)
+	GUESS=neo-tandem-nsk$UNAME_RELEASE
+	;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	GUESS=nse-tandem-nsk$UNAME_RELEASE
+	;;
+    NSR-*:NONSTOP_KERNEL:*:*)
+	GUESS=nsr-tandem-nsk$UNAME_RELEASE
+	;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	GUESS=nsv-tandem-nsk$UNAME_RELEASE
+	;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+	GUESS=nsx-tandem-nsk$UNAME_RELEASE
+	;;
+    *:NonStop-UX:*:*)
+	GUESS=mips-compaq-nonstopux
+	;;
+    BS2000:POSIX*:*:*)
+	GUESS=bs2000-siemens-sysv
+	;;
+    DS/*:UNIX_System_V:*:*)
+	GUESS=$UNAME_MACHINE-$UNAME_SYSTEM-$UNAME_RELEASE
+	;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "${cputype-}" = 386; then
+	    UNAME_MACHINE=i386
+	elif test "x${cputype-}" != x; then
+	    UNAME_MACHINE=$cputype
+	fi
+	GUESS=$UNAME_MACHINE-unknown-plan9
+	;;
+    *:TOPS-10:*:*)
+	GUESS=pdp10-unknown-tops10
+	;;
+    *:TENEX:*:*)
+	GUESS=pdp10-unknown-tenex
+	;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	GUESS=pdp10-dec-tops20
+	;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	GUESS=pdp10-xkl-tops20
+	;;
+    *:TOPS-20:*:*)
+	GUESS=pdp10-unknown-tops20
+	;;
+    *:ITS:*:*)
+	GUESS=pdp10-unknown-its
+	;;
+    SEI:*:*:SEIUX)
+	GUESS=mips-sei-seiux$UNAME_RELEASE
+	;;
+    *:DragonFly:*:*)
+	DRAGONFLY_REL=`echo "$UNAME_RELEASE" | sed -e 's/[-(].*//'`
+	GUESS=$UNAME_MACHINE-unknown-dragonfly$DRAGONFLY_REL
+	;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case $UNAME_MACHINE in
+	    A*) GUESS=alpha-dec-vms ;;
+	    I*) GUESS=ia64-dec-vms ;;
+	    V*) GUESS=vax-dec-vms ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	GUESS=i386-pc-xenix
+	;;
+    i*86:skyos:*:*)
+	SKYOS_REL=`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`
+	GUESS=$UNAME_MACHINE-pc-skyos$SKYOS_REL
+	;;
+    i*86:rdos:*:*)
+	GUESS=$UNAME_MACHINE-pc-rdos
+	;;
+    i*86:Fiwix:*:*)
+	GUESS=$UNAME_MACHINE-pc-fiwix
+	;;
+    *:AROS:*:*)
+	GUESS=$UNAME_MACHINE-unknown-aros
+	;;
+    x86_64:VMkernel:*:*)
+	GUESS=$UNAME_MACHINE-unknown-esx
+	;;
+    amd64:Isilon\ OneFS:*:*)
+	GUESS=x86_64-unknown-onefs
+	;;
+    *:Unleashed:*:*)
+	GUESS=$UNAME_MACHINE-unknown-unleashed$UNAME_RELEASE
+	;;
+esac
+
+# Do we have a guess based on uname results?
+if test "x$GUESS" != x; then
+    echo "$GUESS"
+    exit
+fi
+
+# No uname command or uname output not recognized.
+set_cc_for_build
+cat > "$dummy.c" <
+#include 
+#endif
+#if defined(ultrix) || defined(_ultrix) || defined(__ultrix) || defined(__ultrix__)
+#if defined (vax) || defined (__vax) || defined (__vax__) || defined(mips) || defined(__mips) || defined(__mips__) || defined(MIPS) || defined(__MIPS__)
+#include 
+#if defined(_SIZE_T_) || defined(SIGLOST)
+#include 
+#endif
+#endif
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include 
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+  "4"
+#else
+  ""
+#endif
+  ); exit (0);
+#endif
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+  struct utsname un;
+
+  uname(&un);
+  if (strncmp(un.version, "V2", 2) == 0) {
+    printf ("i386-sequent-ptx2\n"); exit (0);
+  }
+  if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+    printf ("i386-sequent-ptx1\n"); exit (0);
+  }
+  printf ("i386-sequent-ptx\n"); exit (0);
+#endif
+
+#if defined (vax)
+#if !defined (ultrix)
+#include 
+#if defined (BSD)
+#if BSD == 43
+  printf ("vax-dec-bsd4.3\n"); exit (0);
+#else
+#if BSD == 199006
+  printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#else
+  printf ("vax-dec-bsd\n"); exit (0);
+#endif
+#endif
+#else
+  printf ("vax-dec-bsd\n"); exit (0);
+#endif
+#else
+#if defined(_SIZE_T_) || defined(SIGLOST)
+  struct utsname un;
+  uname (&un);
+  printf ("vax-dec-ultrix%s\n", un.release); exit (0);
+#else
+  printf ("vax-dec-ultrix\n"); exit (0);
+#endif
+#endif
+#endif
+#if defined(ultrix) || defined(_ultrix) || defined(__ultrix) || defined(__ultrix__)
+#if defined(mips) || defined(__mips) || defined(__mips__) || defined(MIPS) || defined(__MIPS__)
+#if defined(_SIZE_T_) || defined(SIGLOST)
+  struct utsname *un;
+  uname (&un);
+  printf ("mips-dec-ultrix%s\n", un.release); exit (0);
+#else
+  printf ("mips-dec-ultrix\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null && SYSTEM_NAME=`"$dummy"` &&
+	{ echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+test -d /usr/apollo && { echo "$ISP-apollo-$SYSTYPE"; exit; }
+
+echo "$0: unable to guess system type" >&2
+
+case $UNAME_MACHINE:$UNAME_SYSTEM in
+    mips:Linux | mips64:Linux)
+	# If we got here on MIPS GNU/Linux, output extra information.
+	cat >&2 <&2 <&2 </dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM  = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
+EOF
+fi
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/curl/config.sub b/curl/config.sub
new file mode 100644
index 0000000..dba16e8
--- /dev/null
+++ b/curl/config.sub
@@ -0,0 +1,1890 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2022 Free Software Foundation, Inc.
+
+# shellcheck disable=SC2006,SC2268 # see below for rationale
+
+timestamp='2022-01-03'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see .
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to .
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/cgit/config.git/plain/config.sub
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+# The "shellcheck disable" line above the timestamp inhibits complaints
+# about features and limitations of the classic Bourne shell that were
+# superseded or lifted in POSIX.  However, this script identifies a wide
+# variety of pre-POSIX systems that do not have POSIX shells at all, and
+# even some reasonably current systems (Solaris 10 as case-in-point) still
+# have a pre-POSIX /bin/sh.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
+
+Canonicalize a configuration name.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to ."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2022 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo "$1"
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Split fields of configuration type
+# shellcheck disable=SC2162
+saved_IFS=$IFS
+IFS="-" read field1 field2 field3 field4 <&2
+		exit 1
+		;;
+	*-*-*-*)
+		basic_machine=$field1-$field2
+		basic_os=$field3-$field4
+		;;
+	*-*-*)
+		# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
+		# parts
+		maybe_os=$field2-$field3
+		case $maybe_os in
+			nto-qnx* | linux-* | uclinux-uclibc* \
+			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
+			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
+			| storm-chaos* | os2-emx* | rtmk-nova*)
+				basic_machine=$field1
+				basic_os=$maybe_os
+				;;
+			android-linux)
+				basic_machine=$field1-unknown
+				basic_os=linux-android
+				;;
+			*)
+				basic_machine=$field1-$field2
+				basic_os=$field3
+				;;
+		esac
+		;;
+	*-*)
+		# A lone config we happen to match not fitting any pattern
+		case $field1-$field2 in
+			decstation-3100)
+				basic_machine=mips-dec
+				basic_os=
+				;;
+			*-*)
+				# Second component is usually, but not always the OS
+				case $field2 in
+					# Prevent following clause from handling this valid os
+					sun*os*)
+						basic_machine=$field1
+						basic_os=$field2
+						;;
+					zephyr*)
+						basic_machine=$field1-unknown
+						basic_os=$field2
+						;;
+					# Manufacturers
+					dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
+					| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
+					| unicom* | ibm* | next | hp | isi* | apollo | altos* \
+					| convergent* | ncr* | news | 32* | 3600* | 3100* \
+					| hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
+					| ultra | tti* | harris | dolphin | highlevel | gould \
+					| cbm | ns | masscomp | apple | axis | knuth | cray \
+					| microblaze* | sim | cisco \
+					| oki | wec | wrs | winbond)
+						basic_machine=$field1-$field2
+						basic_os=
+						;;
+					*)
+						basic_machine=$field1
+						basic_os=$field2
+						;;
+				esac
+			;;
+		esac
+		;;
+	*)
+		# Convert single-component short-hands not valid as part of
+		# multi-component configurations.
+		case $field1 in
+			386bsd)
+				basic_machine=i386-pc
+				basic_os=bsd
+				;;
+			a29khif)
+				basic_machine=a29k-amd
+				basic_os=udi
+				;;
+			adobe68k)
+				basic_machine=m68010-adobe
+				basic_os=scout
+				;;
+			alliant)
+				basic_machine=fx80-alliant
+				basic_os=
+				;;
+			altos | altos3068)
+				basic_machine=m68k-altos
+				basic_os=
+				;;
+			am29k)
+				basic_machine=a29k-none
+				basic_os=bsd
+				;;
+			amdahl)
+				basic_machine=580-amdahl
+				basic_os=sysv
+				;;
+			amiga)
+				basic_machine=m68k-unknown
+				basic_os=
+				;;
+			amigaos | amigados)
+				basic_machine=m68k-unknown
+				basic_os=amigaos
+				;;
+			amigaunix | amix)
+				basic_machine=m68k-unknown
+				basic_os=sysv4
+				;;
+			apollo68)
+				basic_machine=m68k-apollo
+				basic_os=sysv
+				;;
+			apollo68bsd)
+				basic_machine=m68k-apollo
+				basic_os=bsd
+				;;
+			aros)
+				basic_machine=i386-pc
+				basic_os=aros
+				;;
+			aux)
+				basic_machine=m68k-apple
+				basic_os=aux
+				;;
+			balance)
+				basic_machine=ns32k-sequent
+				basic_os=dynix
+				;;
+			blackfin)
+				basic_machine=bfin-unknown
+				basic_os=linux
+				;;
+			cegcc)
+				basic_machine=arm-unknown
+				basic_os=cegcc
+				;;
+			convex-c1)
+				basic_machine=c1-convex
+				basic_os=bsd
+				;;
+			convex-c2)
+				basic_machine=c2-convex
+				basic_os=bsd
+				;;
+			convex-c32)
+				basic_machine=c32-convex
+				basic_os=bsd
+				;;
+			convex-c34)
+				basic_machine=c34-convex
+				basic_os=bsd
+				;;
+			convex-c38)
+				basic_machine=c38-convex
+				basic_os=bsd
+				;;
+			cray)
+				basic_machine=j90-cray
+				basic_os=unicos
+				;;
+			crds | unos)
+				basic_machine=m68k-crds
+				basic_os=
+				;;
+			da30)
+				basic_machine=m68k-da30
+				basic_os=
+				;;
+			decstation | pmax | pmin | dec3100 | decstatn)
+				basic_machine=mips-dec
+				basic_os=
+				;;
+			delta88)
+				basic_machine=m88k-motorola
+				basic_os=sysv3
+				;;
+			dicos)
+				basic_machine=i686-pc
+				basic_os=dicos
+				;;
+			djgpp)
+				basic_machine=i586-pc
+				basic_os=msdosdjgpp
+				;;
+			ebmon29k)
+				basic_machine=a29k-amd
+				basic_os=ebmon
+				;;
+			es1800 | OSE68k | ose68k | ose | OSE)
+				basic_machine=m68k-ericsson
+				basic_os=ose
+				;;
+			gmicro)
+				basic_machine=tron-gmicro
+				basic_os=sysv
+				;;
+			go32)
+				basic_machine=i386-pc
+				basic_os=go32
+				;;
+			h8300hms)
+				basic_machine=h8300-hitachi
+				basic_os=hms
+				;;
+			h8300xray)
+				basic_machine=h8300-hitachi
+				basic_os=xray
+				;;
+			h8500hms)
+				basic_machine=h8500-hitachi
+				basic_os=hms
+				;;
+			harris)
+				basic_machine=m88k-harris
+				basic_os=sysv3
+				;;
+			hp300 | hp300hpux)
+				basic_machine=m68k-hp
+				basic_os=hpux
+				;;
+			hp300bsd)
+				basic_machine=m68k-hp
+				basic_os=bsd
+				;;
+			hppaosf)
+				basic_machine=hppa1.1-hp
+				basic_os=osf
+				;;
+			hppro)
+				basic_machine=hppa1.1-hp
+				basic_os=proelf
+				;;
+			i386mach)
+				basic_machine=i386-mach
+				basic_os=mach
+				;;
+			isi68 | isi)
+				basic_machine=m68k-isi
+				basic_os=sysv
+				;;
+			m68knommu)
+				basic_machine=m68k-unknown
+				basic_os=linux
+				;;
+			magnum | m3230)
+				basic_machine=mips-mips
+				basic_os=sysv
+				;;
+			merlin)
+				basic_machine=ns32k-utek
+				basic_os=sysv
+				;;
+			mingw64)
+				basic_machine=x86_64-pc
+				basic_os=mingw64
+				;;
+			mingw32)
+				basic_machine=i686-pc
+				basic_os=mingw32
+				;;
+			mingw32ce)
+				basic_machine=arm-unknown
+				basic_os=mingw32ce
+				;;
+			monitor)
+				basic_machine=m68k-rom68k
+				basic_os=coff
+				;;
+			morphos)
+				basic_machine=powerpc-unknown
+				basic_os=morphos
+				;;
+			moxiebox)
+				basic_machine=moxie-unknown
+				basic_os=moxiebox
+				;;
+			msdos)
+				basic_machine=i386-pc
+				basic_os=msdos
+				;;
+			msys)
+				basic_machine=i686-pc
+				basic_os=msys
+				;;
+			mvs)
+				basic_machine=i370-ibm
+				basic_os=mvs
+				;;
+			nacl)
+				basic_machine=le32-unknown
+				basic_os=nacl
+				;;
+			ncr3000)
+				basic_machine=i486-ncr
+				basic_os=sysv4
+				;;
+			netbsd386)
+				basic_machine=i386-pc
+				basic_os=netbsd
+				;;
+			netwinder)
+				basic_machine=armv4l-rebel
+				basic_os=linux
+				;;
+			news | news700 | news800 | news900)
+				basic_machine=m68k-sony
+				basic_os=newsos
+				;;
+			news1000)
+				basic_machine=m68030-sony
+				basic_os=newsos
+				;;
+			necv70)
+				basic_machine=v70-nec
+				basic_os=sysv
+				;;
+			nh3000)
+				basic_machine=m68k-harris
+				basic_os=cxux
+				;;
+			nh[45]000)
+				basic_machine=m88k-harris
+				basic_os=cxux
+				;;
+			nindy960)
+				basic_machine=i960-intel
+				basic_os=nindy
+				;;
+			mon960)
+				basic_machine=i960-intel
+				basic_os=mon960
+				;;
+			nonstopux)
+				basic_machine=mips-compaq
+				basic_os=nonstopux
+				;;
+			os400)
+				basic_machine=powerpc-ibm
+				basic_os=os400
+				;;
+			OSE68000 | ose68000)
+				basic_machine=m68000-ericsson
+				basic_os=ose
+				;;
+			os68k)
+				basic_machine=m68k-none
+				basic_os=os68k
+				;;
+			paragon)
+				basic_machine=i860-intel
+				basic_os=osf
+				;;
+			parisc)
+				basic_machine=hppa-unknown
+				basic_os=linux
+				;;
+			psp)
+				basic_machine=mipsallegrexel-sony
+				basic_os=psp
+				;;
+			pw32)
+				basic_machine=i586-unknown
+				basic_os=pw32
+				;;
+			rdos | rdos64)
+				basic_machine=x86_64-pc
+				basic_os=rdos
+				;;
+			rdos32)
+				basic_machine=i386-pc
+				basic_os=rdos
+				;;
+			rom68k)
+				basic_machine=m68k-rom68k
+				basic_os=coff
+				;;
+			sa29200)
+				basic_machine=a29k-amd
+				basic_os=udi
+				;;
+			sei)
+				basic_machine=mips-sei
+				basic_os=seiux
+				;;
+			sequent)
+				basic_machine=i386-sequent
+				basic_os=
+				;;
+			sps7)
+				basic_machine=m68k-bull
+				basic_os=sysv2
+				;;
+			st2000)
+				basic_machine=m68k-tandem
+				basic_os=
+				;;
+			stratus)
+				basic_machine=i860-stratus
+				basic_os=sysv4
+				;;
+			sun2)
+				basic_machine=m68000-sun
+				basic_os=
+				;;
+			sun2os3)
+				basic_machine=m68000-sun
+				basic_os=sunos3
+				;;
+			sun2os4)
+				basic_machine=m68000-sun
+				basic_os=sunos4
+				;;
+			sun3)
+				basic_machine=m68k-sun
+				basic_os=
+				;;
+			sun3os3)
+				basic_machine=m68k-sun
+				basic_os=sunos3
+				;;
+			sun3os4)
+				basic_machine=m68k-sun
+				basic_os=sunos4
+				;;
+			sun4)
+				basic_machine=sparc-sun
+				basic_os=
+				;;
+			sun4os3)
+				basic_machine=sparc-sun
+				basic_os=sunos3
+				;;
+			sun4os4)
+				basic_machine=sparc-sun
+				basic_os=sunos4
+				;;
+			sun4sol2)
+				basic_machine=sparc-sun
+				basic_os=solaris2
+				;;
+			sun386 | sun386i | roadrunner)
+				basic_machine=i386-sun
+				basic_os=
+				;;
+			sv1)
+				basic_machine=sv1-cray
+				basic_os=unicos
+				;;
+			symmetry)
+				basic_machine=i386-sequent
+				basic_os=dynix
+				;;
+			t3e)
+				basic_machine=alphaev5-cray
+				basic_os=unicos
+				;;
+			t90)
+				basic_machine=t90-cray
+				basic_os=unicos
+				;;
+			toad1)
+				basic_machine=pdp10-xkl
+				basic_os=tops20
+				;;
+			tpf)
+				basic_machine=s390x-ibm
+				basic_os=tpf
+				;;
+			udi29k)
+				basic_machine=a29k-amd
+				basic_os=udi
+				;;
+			ultra3)
+				basic_machine=a29k-nyu
+				basic_os=sym1
+				;;
+			v810 | necv810)
+				basic_machine=v810-nec
+				basic_os=none
+				;;
+			vaxv)
+				basic_machine=vax-dec
+				basic_os=sysv
+				;;
+			vms)
+				basic_machine=vax-dec
+				basic_os=vms
+				;;
+			vsta)
+				basic_machine=i386-pc
+				basic_os=vsta
+				;;
+			vxworks960)
+				basic_machine=i960-wrs
+				basic_os=vxworks
+				;;
+			vxworks68)
+				basic_machine=m68k-wrs
+				basic_os=vxworks
+				;;
+			vxworks29k)
+				basic_machine=a29k-wrs
+				basic_os=vxworks
+				;;
+			xbox)
+				basic_machine=i686-pc
+				basic_os=mingw32
+				;;
+			ymp)
+				basic_machine=ymp-cray
+				basic_os=unicos
+				;;
+			*)
+				basic_machine=$1
+				basic_os=
+				;;
+		esac
+		;;
+esac
+
+# Decode 1-component or ad-hoc basic machines
+case $basic_machine in
+	# Here we handle the default manufacturer of certain CPU types.  It is in
+	# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		cpu=hppa1.1
+		vendor=winbond
+		;;
+	op50n)
+		cpu=hppa1.1
+		vendor=oki
+		;;
+	op60c)
+		cpu=hppa1.1
+		vendor=oki
+		;;
+	ibm*)
+		cpu=i370
+		vendor=ibm
+		;;
+	orion105)
+		cpu=clipper
+		vendor=highlevel
+		;;
+	mac | mpw | mac-mpw)
+		cpu=m68k
+		vendor=apple
+		;;
+	pmac | pmac-mpw)
+		cpu=powerpc
+		vendor=apple
+		;;
+
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		cpu=m68000
+		vendor=att
+		;;
+	3b*)
+		cpu=we32k
+		vendor=att
+		;;
+	bluegene*)
+		cpu=powerpc
+		vendor=ibm
+		basic_os=cnk
+		;;
+	decsystem10* | dec10*)
+		cpu=pdp10
+		vendor=dec
+		basic_os=tops10
+		;;
+	decsystem20* | dec20*)
+		cpu=pdp10
+		vendor=dec
+		basic_os=tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		cpu=m68k
+		vendor=motorola
+		;;
+	dpx2*)
+		cpu=m68k
+		vendor=bull
+		basic_os=sysv3
+		;;
+	encore | umax | mmax)
+		cpu=ns32k
+		vendor=encore
+		;;
+	elxsi)
+		cpu=elxsi
+		vendor=elxsi
+		basic_os=${basic_os:-bsd}
+		;;
+	fx2800)
+		cpu=i860
+		vendor=alliant
+		;;
+	genix)
+		cpu=ns32k
+		vendor=ns
+		;;
+	h3050r* | hiux*)
+		cpu=hppa1.1
+		vendor=hitachi
+		basic_os=hiuxwe2
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		cpu=m68000
+		vendor=hp
+		;;
+	hp9k3[2-9][0-9])
+		cpu=m68k
+		vendor=hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	i*86v32)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		basic_os=sysv32
+		;;
+	i*86v4*)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		basic_os=sysv4
+		;;
+	i*86v)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		basic_os=sysv
+		;;
+	i*86sol2)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		basic_os=solaris2
+		;;
+	j90 | j90-cray)
+		cpu=j90
+		vendor=cray
+		basic_os=${basic_os:-unicos}
+		;;
+	iris | iris4d)
+		cpu=mips
+		vendor=sgi
+		case $basic_os in
+		    irix*)
+			;;
+		    *)
+			basic_os=irix4
+			;;
+		esac
+		;;
+	miniframe)
+		cpu=m68000
+		vendor=convergent
+		;;
+	*mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		cpu=m68k
+		vendor=atari
+		basic_os=mint
+		;;
+	news-3600 | risc-news)
+		cpu=mips
+		vendor=sony
+		basic_os=newsos
+		;;
+	next | m*-next)
+		cpu=m68k
+		vendor=next
+		case $basic_os in
+		    openstep*)
+		        ;;
+		    nextstep*)
+			;;
+		    ns2*)
+		      basic_os=nextstep2
+			;;
+		    *)
+		      basic_os=nextstep3
+			;;
+		esac
+		;;
+	np1)
+		cpu=np1
+		vendor=gould
+		;;
+	op50n-* | op60c-*)
+		cpu=hppa1.1
+		vendor=oki
+		basic_os=proelf
+		;;
+	pa-hitachi)
+		cpu=hppa1.1
+		vendor=hitachi
+		basic_os=hiuxwe2
+		;;
+	pbd)
+		cpu=sparc
+		vendor=tti
+		;;
+	pbb)
+		cpu=m68k
+		vendor=tti
+		;;
+	pc532)
+		cpu=ns32k
+		vendor=pc532
+		;;
+	pn)
+		cpu=pn
+		vendor=gould
+		;;
+	power)
+		cpu=power
+		vendor=ibm
+		;;
+	ps2)
+		cpu=i386
+		vendor=ibm
+		;;
+	rm[46]00)
+		cpu=mips
+		vendor=siemens
+		;;
+	rtpc | rtpc-*)
+		cpu=romp
+		vendor=ibm
+		;;
+	sde)
+		cpu=mipsisa32
+		vendor=sde
+		basic_os=${basic_os:-elf}
+		;;
+	simso-wrs)
+		cpu=sparclite
+		vendor=wrs
+		basic_os=vxworks
+		;;
+	tower | tower-32)
+		cpu=m68k
+		vendor=ncr
+		;;
+	vpp*|vx|vx-*)
+		cpu=f301
+		vendor=fujitsu
+		;;
+	w65)
+		cpu=w65
+		vendor=wdc
+		;;
+	w89k-*)
+		cpu=hppa1.1
+		vendor=winbond
+		basic_os=proelf
+		;;
+	none)
+		cpu=none
+		vendor=none
+		;;
+	leon|leon[3-9])
+		cpu=sparc
+		vendor=$basic_machine
+		;;
+	leon-*|leon[3-9]-*)
+		cpu=sparc
+		vendor=`echo "$basic_machine" | sed 's/-.*//'`
+		;;
+
+	*-*)
+		# shellcheck disable=SC2162
+		saved_IFS=$IFS
+		IFS="-" read cpu vendor <&2
+				exit 1
+				;;
+		esac
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $vendor in
+	digital*)
+		vendor=dec
+		;;
+	commodore*)
+		vendor=cbm
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if test x$basic_os != x
+then
+
+# First recognize some ad-hoc cases, or perhaps split kernel-os, or else just
+# set os.
+case $basic_os in
+	gnu/linux*)
+		kernel=linux
+		os=`echo "$basic_os" | sed -e 's|gnu/linux|gnu|'`
+		;;
+	os2-emx)
+		kernel=os2
+		os=`echo "$basic_os" | sed -e 's|os2-emx|emx|'`
+		;;
+	nto-qnx*)
+		kernel=nto
+		os=`echo "$basic_os" | sed -e 's|nto-qnx|qnx|'`
+		;;
+	*-*)
+		# shellcheck disable=SC2162
+		saved_IFS=$IFS
+		IFS="-" read kernel os <&2
+		exit 1
+		;;
+esac
+
+# As a final step for OS-related things, validate the OS-kernel combination
+# (given a valid OS), if there is a kernel.
+case $kernel-$os in
+	linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* \
+		   | linux-musl* | linux-relibc* | linux-uclibc* )
+		;;
+	uclinux-uclibc* )
+		;;
+	-dietlibc* | -newlib* | -musl* | -relibc* | -uclibc* )
+		# These are just libc implementations, not actual OSes, and thus
+		# require a kernel.
+		echo "Invalid configuration \`$1': libc \`$os' needs explicit kernel." 1>&2
+		exit 1
+		;;
+	kfreebsd*-gnu* | kopensolaris*-gnu*)
+		;;
+	vxworks-simlinux | vxworks-simwindows | vxworks-spe)
+		;;
+	nto-qnx*)
+		;;
+	os2-emx)
+		;;
+	*-eabi* | *-gnueabi*)
+		;;
+	-*)
+		# Blank kernel with real OS is always fine.
+		;;
+	*-*)
+		echo "Invalid configuration \`$1': Kernel \`$kernel' not known to work with OS \`$os'." 1>&2
+		exit 1
+		;;
+esac
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+case $vendor in
+	unknown)
+		case $cpu-$os in
+			*-riscix*)
+				vendor=acorn
+				;;
+			*-sunos*)
+				vendor=sun
+				;;
+			*-cnk* | *-aix*)
+				vendor=ibm
+				;;
+			*-beos*)
+				vendor=be
+				;;
+			*-hpux*)
+				vendor=hp
+				;;
+			*-mpeix*)
+				vendor=hp
+				;;
+			*-hiux*)
+				vendor=hitachi
+				;;
+			*-unos*)
+				vendor=crds
+				;;
+			*-dgux*)
+				vendor=dg
+				;;
+			*-luna*)
+				vendor=omron
+				;;
+			*-genix*)
+				vendor=ns
+				;;
+			*-clix*)
+				vendor=intergraph
+				;;
+			*-mvs* | *-opened*)
+				vendor=ibm
+				;;
+			*-os400*)
+				vendor=ibm
+				;;
+			s390-* | s390x-*)
+				vendor=ibm
+				;;
+			*-ptx*)
+				vendor=sequent
+				;;
+			*-tpf*)
+				vendor=ibm
+				;;
+			*-vxsim* | *-vxworks* | *-windiss*)
+				vendor=wrs
+				;;
+			*-aux*)
+				vendor=apple
+				;;
+			*-hms*)
+				vendor=hitachi
+				;;
+			*-mpw* | *-macos*)
+				vendor=apple
+				;;
+			*-*mint | *-mint[0-9]* | *-*MiNT | *-MiNT[0-9]*)
+				vendor=atari
+				;;
+			*-vos*)
+				vendor=stratus
+				;;
+		esac
+		;;
+esac
+
+echo "$cpu-$vendor-${kernel:+$kernel-}$os"
+exit
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/curl/configure b/curl/configure
new file mode 100644
index 0000000..59c296c
--- /dev/null
+++ b/curl/configure
@@ -0,0 +1,49475 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.71 for curl -.
+#
+# Report bugs to .
+#
+#
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+#
+# Copyright (c) 1998 - 2022 Daniel Stenberg, 
+# This configure script may be copied, distributed and modified under the
+# terms of the curl license; see COPYING for more details
+
+## -------------------------------- ##
+##  XC_CONFIGURE_PREAMBLE ver: 1.0  ##
+## -------------------------------- ##
+
+xc_configure_preamble_ver_major='1'
+xc_configure_preamble_ver_minor='0'
+
+#
+# Set IFS to space, tab and newline.
+#
+
+xc_space=' '
+xc_tab='	'
+xc_newline='
+'
+IFS="$xc_space$xc_tab$xc_newline"
+
+#
+# Set internationalization behavior variables.
+#
+
+LANG='C'
+LC_ALL='C'
+LANGUAGE='C'
+export LANG
+export LC_ALL
+export LANGUAGE
+
+#
+# Some useful variables.
+#
+
+xc_msg_warn='configure: WARNING:'
+xc_msg_abrt='Can not continue.'
+xc_msg_err='configure: error:'
+
+#
+# Verify that 'echo' command is available, otherwise abort.
+#
+
+xc_tst_str='unknown'
+(`echo "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    # Try built-in echo, and fail.
+    echo "$xc_msg_err 'echo' command not found. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'test' command is available, otherwise abort.
+#
+
+xc_tst_str='unknown'
+(`test -n "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'test' command not found. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'PATH' variable is set, otherwise abort.
+#
+
+xc_tst_str='unknown'
+(`test -n "$PATH" >/dev/null 2>&1`) && xc_tst_str='success'
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'PATH' variable not set. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'expr' command is available, otherwise abort.
+#
+
+xc_tst_str='unknown'
+xc_tst_str=`expr "$xc_tst_str" : '.*' 2>/dev/null`
+case "x$xc_tst_str" in # ((
+  x7)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'expr' command not found. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'sed' utility is found within 'PATH', otherwise abort.
+#
+
+xc_tst_str='unknown'
+xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \
+  | sed -e 's:unknown:success:' 2>/dev/null`
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'sed' utility not found in 'PATH'. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'grep' utility is found within 'PATH', otherwise abort.
+#
+
+xc_tst_str='unknown'
+(`echo "$xc_tst_str" 2>/dev/null \
+  | grep 'unknown' >/dev/null 2>&1`) && xc_tst_str='success'
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'grep' utility not found in 'PATH'. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'tr' utility is found within 'PATH', otherwise abort.
+#
+
+xc_tst_str="${xc_tab}98s7u6c5c4e3s2s10"
+xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \
+  | tr -d "0123456789$xc_tab" 2>/dev/null`
+case "x$xc_tst_str" in # ((
+  xsuccess)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'tr' utility not found in 'PATH'. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'wc' utility is found within 'PATH', otherwise abort.
+#
+
+xc_tst_str='unknown unknown unknown unknown'
+xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \
+  | wc -w 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null`
+case "x$xc_tst_str" in # ((
+  x4)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'wc' utility not found in 'PATH'. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Verify that 'cat' utility is found within 'PATH', otherwise abort.
+#
+
+xc_tst_str='unknown'
+xc_tst_str=`cat <<_EOT 2>/dev/null \
+  | wc -l 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null
+unknown
+unknown
+unknown
+_EOT`
+case "x$xc_tst_str" in # ((
+  x3)
+    :
+    ;;
+  *)
+    echo "$xc_msg_err 'cat' utility not found in 'PATH'. $xc_msg_abrt" >&2
+    exit 1
+    ;;
+esac
+
+#
+# Auto-detect and set 'PATH_SEPARATOR', unless it is already non-empty set.
+#
+
+# Directory count in 'PATH' when using a colon separator.
+xc_tst_dirs_col='x'
+xc_tst_prev_IFS=$IFS; IFS=':'
+for xc_tst_dir in $PATH; do
+  IFS=$xc_tst_prev_IFS
+  xc_tst_dirs_col="x$xc_tst_dirs_col"
+done
+IFS=$xc_tst_prev_IFS
+xc_tst_dirs_col=`expr "$xc_tst_dirs_col" : '.*'`
+
+# Directory count in 'PATH' when using a semicolon separator.
+xc_tst_dirs_sem='x'
+xc_tst_prev_IFS=$IFS; IFS=';'
+for xc_tst_dir in $PATH; do
+  IFS=$xc_tst_prev_IFS
+  xc_tst_dirs_sem="x$xc_tst_dirs_sem"
+done
+IFS=$xc_tst_prev_IFS
+xc_tst_dirs_sem=`expr "$xc_tst_dirs_sem" : '.*'`
+
+if test $xc_tst_dirs_sem -eq $xc_tst_dirs_col; then
+  # When both counting methods give the same result we do not want to
+  # chose one over the other, and consider auto-detection not possible.
+  if test -z "$PATH_SEPARATOR"; then
+    # User should provide the correct 'PATH_SEPARATOR' definition.
+    # Until then, guess that it is colon!
+    echo "$xc_msg_warn path separator not determined, guessing colon" >&2
+    PATH_SEPARATOR=':'
+  fi
+else
+  # Separator with the greater directory count is the auto-detected one.
+  if test $xc_tst_dirs_sem -gt $xc_tst_dirs_col; then
+    xc_tst_auto_separator=';'
+  else
+    xc_tst_auto_separator=':'
+  fi
+  if test -z "$PATH_SEPARATOR"; then
+    # Simply use the auto-detected one when not already set.
+    PATH_SEPARATOR=$xc_tst_auto_separator
+  elif test "x$PATH_SEPARATOR" != "x$xc_tst_auto_separator"; then
+    echo "$xc_msg_warn 'PATH_SEPARATOR' does not match auto-detected one." >&2
+  fi
+fi
+xc_PATH_SEPARATOR=$PATH_SEPARATOR
+
+xc_configure_preamble_result='yes'
+
+
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else $as_nop
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
+as_nl='
+'
+export as_nl
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
+
+
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="as_nop=:
+if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else \$as_nop
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
+
+else \$as_nop
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+  if (eval "$as_required") 2>/dev/null
+then :
+  as_have_required=yes
+else $as_nop
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
+
+else $as_nop
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+IFS=$as_save_IFS
+if $as_found
+then :
+
+else $as_nop
+  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi
+fi
+
+
+      if test "x$CONFIG_SHELL" != x
+then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno
+then :
+  printf "%s\n" "$0: This script requires a shell more modern than all"
+  printf "%s\n" "$0: the shells that I found on your system."
+  if test ${ZSH_VERSION+y} ; then
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org and a suitable curl
+$0: mailing list: https://curl.se/mail/ about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else $as_nop
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else $as_nop
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  printf "%s\n" "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 &1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='curl'
+PACKAGE_TARNAME='curl'
+PACKAGE_VERSION='-'
+PACKAGE_STRING='curl -'
+PACKAGE_BUGREPORT='a suitable curl mailing list: https://curl.se/mail/'
+PACKAGE_URL=''
+
+ac_unique_file="lib/urldata.h"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include 
+#ifdef HAVE_STDIO_H
+# include 
+#endif
+#ifdef HAVE_STDLIB_H
+# include 
+#endif
+#ifdef HAVE_STRING_H
+# include 
+#endif
+#ifdef HAVE_INTTYPES_H
+# include 
+#endif
+#ifdef HAVE_STDINT_H
+# include 
+#endif
+#ifdef HAVE_STRINGS_H
+# include 
+#endif
+#ifdef HAVE_SYS_TYPES_H
+# include 
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include 
+#endif
+#ifdef HAVE_UNISTD_H
+# include 
+#endif"
+
+ac_header_c_list=
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+SSL_BACKENDS
+SUPPORT_PROTOCOLS
+SUPPORT_FEATURES
+LIBCURL_NO_SHARED
+ENABLE_STATIC
+ENABLE_SHARED
+CROSSCOMPILING_FALSE
+CROSSCOMPILING_TRUE
+BLANK_AT_MAKETIME
+CURL_NETWORK_AND_TIME_LIBS
+CURL_NETWORK_LIBS
+LIBCURL_LIBS
+CFLAG_CURL_SYMBOL_HIDING
+DOING_CURL_SYMBOL_HIDING_FALSE
+DOING_CURL_SYMBOL_HIDING_TRUE
+USE_UNIX_SOCKETS
+BUILD_LIBHOSTNAME_FALSE
+BUILD_LIBHOSTNAME_TRUE
+USE_ARES
+USE_MANUAL_FALSE
+USE_MANUAL_TRUE
+MANOPT
+NROFF
+PERL
+FISH_FUNCTIONS_DIR
+ZSH_FUNCTIONS_DIR
+USE_MSH3
+USE_QUICHE
+USE_NGHTTP3
+USE_NGTCP2_CRYPTO_GNUTLS
+USE_NGTCP2_CRYPTO_OPENSSL
+USE_NGTCP2
+USE_NGHTTP2
+IDN_ENABLED
+CURL_PLIST_VERSION
+CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_FALSE
+CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_TRUE
+CURL_LT_SHLIB_VERSIONED_FLAVOUR
+USE_LIBRTMP
+USE_WOLFSSH
+USE_LIBSSH
+USE_LIBSSH2
+USE_GSASL_FALSE
+USE_GSASL_TRUE
+USE_LIBPSL_FALSE
+USE_LIBPSL_TRUE
+CURL_CA_BUNDLE
+CURL_WITH_MULTI_SSL
+SSL_ENABLED
+NSS_LIBS
+USE_NSS
+USE_RUSTLS
+USE_BEARSSL
+USE_WOLFSSL
+USE_MBEDTLS
+HAVE_GNUTLS_SRP
+USE_GNUTLS
+HAVE_OPENSSL_SRP
+RANDOM_FILE
+SSL_LIBS
+USE_SECTRANSP
+USE_WINDOWS_SSPI
+USE_SCHANNEL
+DEFAULT_SSL_BACKEND
+BUILD_STUB_GSS_FALSE
+BUILD_STUB_GSS_TRUE
+IPV6_ENABLED
+USE_OPENLDAP
+HAVE_ZSTD
+HAVE_BROTLI
+ZLIB_LIBS
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+HAVE_LIBZ_TRUE
+HAVE_LIBZ
+HAVE_PROTO_BSDSOCKET_H
+CURL_DISABLE_MQTT
+CURL_DISABLE_GOPHER
+CURL_DISABLE_SMTP
+CURL_DISABLE_SMB
+CURL_DISABLE_IMAP
+CURL_DISABLE_POP3
+CURL_DISABLE_TFTP
+CURL_DISABLE_TELNET
+CURL_DISABLE_DICT
+CURL_DISABLE_PROXY
+USE_HYPER
+PKGCONFIG
+HAVE_LDAP_SSL
+CURL_DISABLE_LDAPS
+CURL_DISABLE_LDAP
+CURL_DISABLE_FILE
+CURL_DISABLE_FTP
+CURL_DISABLE_RTSP
+CURL_DISABLE_HTTP
+USE_WIN32_CRYPTO
+USE_WIN32_SMALL_FILES
+USE_WIN32_LARGE_FILES
+DOING_NATIVE_WINDOWS_FALSE
+DOING_NATIVE_WINDOWS_TRUE
+BUILD_UNITTESTS_FALSE
+BUILD_UNITTESTS_TRUE
+CURLDEBUG_FALSE
+CURLDEBUG_TRUE
+CURL_CFLAG_EXTRAS
+USE_EXPLICIT_LIB_DEPS_FALSE
+USE_EXPLICIT_LIB_DEPS_TRUE
+REQUIRE_LIB_DEPS
+CPPFLAG_CURL_STATICLIB
+USE_CPPFLAG_CURL_STATICLIB_FALSE
+USE_CPPFLAG_CURL_STATICLIB_TRUE
+CURL_LT_SHLIB_USE_MIMPURE_TEXT_FALSE
+CURL_LT_SHLIB_USE_MIMPURE_TEXT_TRUE
+CURL_LT_SHLIB_USE_NO_UNDEFINED_FALSE
+CURL_LT_SHLIB_USE_NO_UNDEFINED_TRUE
+CURL_LT_SHLIB_USE_VERSION_INFO_FALSE
+CURL_LT_SHLIB_USE_VERSION_INFO_TRUE
+LT_SYS_LIBRARY_PATH
+OTOOL64
+OTOOL
+LIPO
+NMEDIT
+DSYMUTIL
+MANIFEST_TOOL
+RANLIB
+ac_ct_AR
+FILECMD
+LN_S
+NM
+ac_ct_DUMPBIN
+DUMPBIN
+LD
+FGREP
+LIBTOOL
+OBJDUMP
+DLLTOOL
+AS
+AR_FLAGS
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+PKGADD_VENDOR
+PKGADD_NAME
+PKGADD_PKG
+VERSIONNUM
+CURLVERSION
+CSCOPE
+ETAGS
+CTAGS
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
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+am__untar
+am__tar
+AMTAR
+am__leading_dot
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+STRIP
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+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
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+am__isrc
+LCOV
+GCOV
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+ac_ct_CC
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+INSTALL_PROGRAM
+libext
+AR
+EGREP
+GREP
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+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+MAINT
+MAINTAINER_MODE_FALSE
+MAINTAINER_MODE_TRUE
+target_alias
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+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
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+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+runstatedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
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+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+SHELL
+PATH_SEPARATOR
+am__quote'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_maintainer_mode
+enable_silent_rules
+enable_debug
+enable_optimize
+enable_warnings
+enable_werror
+enable_curldebug
+enable_symbol_hiding
+enable_ares
+enable_rt
+enable_ech
+enable_code_coverage
+enable_dependency_tracking
+with_schannel
+with_secure_transport
+with_amissl
+with_ssl
+with_openssl
+with_gnutls
+with_mbedtls
+with_wolfssl
+with_bearssl
+with_rustls
+with_nss_deprecated
+with_nss
+with_darwinssl
+enable_largefile
+enable_shared
+enable_static
+with_pic
+enable_fast_install
+with_aix_soname
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+enable_http
+enable_ftp
+enable_file
+enable_ldap
+enable_ldaps
+with_hyper
+enable_rtsp
+enable_proxy
+enable_dict
+enable_telnet
+enable_tftp
+enable_pop3
+enable_imap
+enable_smb
+enable_smtp
+enable_gopher
+enable_mqtt
+enable_manual
+enable_libcurl_option
+enable_libgcc
+with_zlib
+with_brotli
+with_zstd
+with_ldap_lib
+with_lber_lib
+enable_ipv6
+with_gssapi_includes
+with_gssapi_libs
+with_gssapi
+with_default_ssl_backend
+with_egd_socket
+with_random
+enable_openssl_auto_load_config
+with_ca_bundle
+with_ca_path
+with_ca_fallback
+with_libpsl
+with_libgsasl
+with_libmetalink
+with_libssh2
+with_libssh
+with_wolfssh
+with_librtmp
+enable_versioned_symbols
+with_winidn
+with_libidn2
+with_nghttp2
+with_ngtcp2
+with_nghttp3
+with_quiche
+with_msh3
+with_zsh_functions_dir
+with_fish_functions_dir
+enable_threaded_resolver
+enable_pthreads
+enable_verbose
+enable_sspi
+enable_crypto_auth
+enable_ntlm
+enable_ntlm_wb
+enable_tls_srp
+enable_unix_sockets
+enable_cookies
+enable_socketpair
+enable_http_auth
+enable_doh
+enable_mime
+enable_dateparse
+enable_netrc
+enable_progress_meter
+enable_dnsshuffle
+enable_get_easy_options
+enable_alt_svc
+enable_headers_api
+enable_hsts
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CPP
+LT_SYS_LIBRARY_PATH'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir runstatedir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures curl - to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/curl]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of curl -:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-maintainer-mode
+                          enable make rules and dependencies not useful (and
+                          sometimes confusing) to the casual installer
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-debug          Enable debug build options
+  --disable-debug         Disable debug build options
+  --enable-optimize       Enable compiler optimizations
+  --disable-optimize      Disable compiler optimizations
+  --enable-warnings       Enable strict compiler warnings
+  --disable-warnings      Disable strict compiler warnings
+  --enable-werror         Enable compiler warnings as errors
+  --disable-werror        Disable compiler warnings as errors
+  --enable-curldebug      Enable curl debug memory tracking
+  --disable-curldebug     Disable curl debug memory tracking
+  --enable-symbol-hiding  Enable hiding of library internal symbols
+  --disable-symbol-hiding Disable hiding of library internal symbols
+  --enable-ares[=PATH]    Enable c-ares for DNS lookups
+  --disable-ares          Disable c-ares for DNS lookups
+  --disable-rt            disable dependency on -lrt
+  --enable-ech            Enable ECH support
+  --disable-ech           Disable ECH support
+  --enable-code-coverage  Provide code coverage
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
+  --disable-largefile     omit support for large files
+  --enable-shared[=PKGS]  build shared libraries [default=yes]
+  --enable-static[=PKGS]  build static libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-http           Enable HTTP support
+  --disable-http          Disable HTTP support
+  --enable-ftp            Enable FTP support
+  --disable-ftp           Disable FTP support
+  --enable-file           Enable FILE support
+  --disable-file          Disable FILE support
+  --enable-ldap           Enable LDAP support
+  --disable-ldap          Disable LDAP support
+  --enable-ldaps          Enable LDAPS support
+  --disable-ldaps         Disable LDAPS support
+  --enable-rtsp           Enable RTSP support
+    --disable-rtsp          Disable RTSP support
+  --enable-proxy          Enable proxy support
+  --disable-proxy         Disable proxy support
+  --enable-dict           Enable DICT support
+  --disable-dict          Disable DICT support
+  --enable-telnet         Enable TELNET support
+  --disable-telnet        Disable TELNET support
+  --enable-tftp           Enable TFTP support
+  --disable-tftp          Disable TFTP support
+  --enable-pop3           Enable POP3 support
+  --disable-pop3          Disable POP3 support
+  --enable-imap           Enable IMAP support
+  --disable-imap          Disable IMAP support
+  --enable-smb            Enable SMB/CIFS support
+  --disable-smb           Disable SMB/CIFS support
+  --enable-smtp           Enable SMTP support
+  --disable-smtp          Disable SMTP support
+  --enable-gopher         Enable Gopher support
+  --disable-gopher        Disable Gopher support
+  --enable-mqtt           Enable MQTT support
+  --disable-mqtt          Disable MQTT support
+  --enable-manual         Enable built-in manual
+  --disable-manual        Disable built-in manual
+  --enable-libcurl-option Enable --libcurl C code generation support
+  --disable-libcurl-option
+                          Disable --libcurl C code generation support
+  --enable-libgcc         use libgcc when linking
+  --enable-ipv6           Enable IPv6 (with IPv4) support
+  --disable-ipv6          Disable IPv6 support
+  --enable-openssl-auto-load-config
+                          Enable automatic loading of OpenSSL configuration
+  --disable-openssl-auto-load-config
+                          Disable automatic loading of OpenSSL configuration
+  --enable-versioned-symbols
+                          Enable versioned symbols in shared library
+  --disable-versioned-symbols
+                          Disable versioned symbols in shared library
+  --enable-threaded-resolver
+                          Enable threaded resolver
+  --disable-threaded-resolver
+                          Disable threaded resolver
+  --enable-pthreads       Enable POSIX threads (default for threaded resolver)
+  --disable-pthreads      Disable POSIX threads
+  --enable-verbose        Enable verbose strings
+  --disable-verbose       Disable verbose strings
+  --enable-sspi           Enable SSPI
+  --disable-sspi          Disable SSPI
+  --enable-crypto-auth    Enable cryptographic authentication
+  --disable-crypto-auth   Disable cryptographic authentication
+  --enable-ntlm           Enable NTLM support
+  --disable-ntlm          Disable NTLM support
+  --enable-ntlm-wb[=FILE] Enable NTLM delegation to winbind's ntlm_auth
+                          helper, where FILE is ntlm_auth's absolute filename
+                          (default: /usr/bin/ntlm_auth)
+  --disable-ntlm-wb       Disable NTLM delegation to winbind's ntlm_auth
+                          helper
+  --enable-tls-srp        Enable TLS-SRP authentication
+  --disable-tls-srp       Disable TLS-SRP authentication
+  --enable-unix-sockets   Enable Unix domain sockets
+  --disable-unix-sockets  Disable Unix domain sockets
+  --enable-cookies        Enable cookies support
+  --disable-cookies       Disable cookies support
+  --enable-socketpair     Enable socketpair support
+  --disable-socketpair    Disable socketpair support
+  --enable-http-auth      Enable HTTP authentication support
+  --disable-http-auth     Disable HTTP authentication support
+  --enable-doh            Enable DoH support
+  --disable-doh           Disable DoH support
+  --enable-mime           Enable mime API support
+  --disable-mime          Disable mime API support
+  --enable-dateparse      Enable date parsing
+  --disable-dateparse     Disable date parsing
+  --enable-netrc          Enable netrc parsing
+  --disable-netrc         Disable netrc parsing
+  --enable-progress-meter Enable progress-meter
+  --disable-progress-meter
+                          Disable progress-meter
+  --enable-dnsshuffle     Enable DNS shuffling
+  --disable-dnsshuffle    Disable DNS shuffling
+  --enable-get-easy-options
+                          Enable curl_easy_options
+  --disable-get-easy-options
+                          Disable curl_easy_options
+  --enable-alt-svc        Enable alt-svc support
+  --disable-alt-svc       Disable alt-svc support
+  --enable-headers-api    Enable headers-api support
+  --disable-headers-api   Disable headers-api support
+  --enable-hsts           Enable HSTS support
+    --disable-hsts          Disable HSTS support
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-schannel         enable Windows native SSL/TLS
+  --with-secure-transport enable Apple OS native SSL/TLS
+  --with-amissl           enable Amiga native SSL/TLS (AmiSSL)
+  --with-ssl=PATH         old version of --with-openssl
+  --without-ssl           build without any TLS library
+  --with-openssl=PATH     Where to look for OpenSSL, PATH points to the SSL
+                          installation (default: /usr/local/ssl); when
+                          possible, set the PKG_CONFIG_PATH environment
+                          variable instead of using this option
+  --with-gnutls=PATH      where to look for GnuTLS, PATH points to the
+                          installation root
+  --with-mbedtls=PATH     where to look for mbedTLS, PATH points to the
+                          installation root
+  --with-wolfssl=PATH     where to look for WolfSSL, PATH points to the
+                          installation root (default: system lib default)
+  --with-bearssl=PATH     where to look for BearSSL, PATH points to the
+                          installation root
+  --with-rustls=PATH      where to look for rustls, PATH points to the
+                          installation root
+  --with-nss-deprecated   confirm you realize NSS is going away
+  --with-nss=PATH         where to look for NSS, PATH points to the
+                          installation root
+
+  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-aix-soname=aix|svr4|both
+                          shared library versioning (aka "SONAME") variant to
+                          provide on AIX, [default=aix].
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
+                          compiler's sysroot if not specified).
+  --with-hyper=PATH       Enable hyper usage
+  --without-hyper         Disable hyper usage
+  --with-zlib=PATH        search for zlib in PATH
+  --without-zlib          disable use of zlib
+  --with-brotli=PATH      Where to look for brotli, PATH points to the BROTLI
+                          installation; when possible, set the PKG_CONFIG_PATH
+                          environment variable instead of using this option
+  --without-brotli        disable BROTLI
+  --with-zstd=PATH        Where to look for libzstd, PATH points to the
+                          libzstd installation; when possible, set the
+                          PKG_CONFIG_PATH environment variable instead of
+                          using this option
+  --without-zstd          disable libzstd
+  --with-ldap-lib=libname Specify name of ldap lib file
+  --with-lber-lib=libname Specify name of lber lib file
+  --with-gssapi-includes=DIR
+                          Specify location of GSS-API headers
+  --with-gssapi-libs=DIR  Specify location of GSS-API libs
+  --with-gssapi=DIR       Where to look for GSS-API
+  --with-default-ssl-backend=NAME
+                          Use NAME as default SSL backend
+  --without-default-ssl-backend
+                          Use implicit default SSL backend
+  --with-egd-socket=FILE  Entropy Gathering Daemon socket pathname
+  --with-random=FILE      read randomness from FILE (default=/dev/urandom)
+  --with-ca-bundle=FILE   Path to a file containing CA certificates (example:
+                          /etc/ca-bundle.crt)
+  --without-ca-bundle     Don't use a default CA bundle
+  --with-ca-path=DIRECTORY
+                          Path to a directory containing CA certificates
+                          stored individually, with their filenames in a hash
+                          format. This option can be used with the OpenSSL,
+                          GnuTLS and mbedTLS backends. Refer to OpenSSL
+                          c_rehash for details. (example: /etc/certificates)
+  --without-ca-path       Don't use a default CA path
+  --with-ca-fallback      Use the built in CA store of the SSL library
+  --without-ca-fallback   Don't use the built in CA store of the SSL library
+  --without-libpsl        disable support for libpsl cookie checking
+  --without-libgsasl      disable libgsasl support for SCRAM
+  --with-libssh2=PATH     Where to look for libssh2, PATH points to the
+                          libssh2 installation; when possible, set the
+                          PKG_CONFIG_PATH environment variable instead of
+                          using this option
+  --with-libssh2          enable libssh2
+  --with-libssh=PATH      Where to look for libssh, PATH points to the libssh
+                          installation; when possible, set the PKG_CONFIG_PATH
+                          environment variable instead of using this option
+  --with-libssh           enable libssh
+  --with-wolfssh=PATH     Where to look for wolfssh, PATH points to the
+                          wolfSSH installation; when possible, set the
+                          PKG_CONFIG_PATH environment variable instead of
+                          using this option
+  --with-wolfssh          enable wolfssh
+  --with-librtmp=PATH     Where to look for librtmp, PATH points to the
+                          LIBRTMP installation; when possible, set the
+                          PKG_CONFIG_PATH environment variable instead of
+                          using this option
+  --without-librtmp       disable LIBRTMP
+  --with-winidn=PATH      enable Windows native IDN
+  --without-winidn        disable Windows native IDN
+  --with-libidn2=PATH     Enable libidn2 usage
+  --without-libidn2       Disable libidn2 usage
+  --with-nghttp2=PATH     Enable nghttp2 usage
+  --without-nghttp2       Disable nghttp2 usage
+  --with-ngtcp2=PATH      Enable ngtcp2 usage
+  --without-ngtcp2        Disable ngtcp2 usage
+  --with-nghttp3=PATH     Enable nghttp3 usage
+  --without-nghttp3       Disable nghttp3 usage
+  --with-quiche=PATH      Enable quiche usage
+  --without-quiche        Disable quiche usage
+  --with-msh3=PATH        Enable msh3 usage
+  --without-msh3          Disable msh3 usage
+  --with-zsh-functions-dir=PATH
+                          Install zsh completions to PATH
+  --without-zsh-functions-dir
+                          Do not install zsh completions
+  --with-fish-functions-dir=PATH
+                          Install fish completions to PATH
+  --without-fish-functions-dir
+                          Do not install fish completions
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L if you have libraries in a
+              nonstandard directory 
+  LIBS        libraries to pass to the linker, e.g. -l
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I if
+              you have headers in a nonstandard directory 
+  CPP         C preprocessor
+  LT_SYS_LIBRARY_PATH
+              User-defined run-time library search path.
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to .
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for configure.gnu first; this name is used for a wrapper for
+    # Metaconfig's "Configure" on case-insensitive file systems.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+curl configure -
+generated by GNU Autoconf 2.71
+
+Copyright (C) 2021 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+
+Copyright (c) 1998 - 2022 Daniel Stenberg, 
+This configure script may be copied, distributed and modified under the
+terms of the curl license; see COPYING for more details
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest.beam
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext
+then :
+  ac_retval=0
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }
+then :
+  ac_retval=0
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }
+then :
+  ac_retval=0
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  eval "$3=yes"
+else $as_nop
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define $2 innocuous_$2
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef $2
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int main (void)
+{
+return $2 ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  eval "$3=yes"
+else $as_nop
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
+# executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+then :
+  ac_retval=0
+else $as_nop
+  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+       printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int main (void)
+{
+if (sizeof ($2))
+	 return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int main (void)
+{
+if (sizeof (($2)))
+	    return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+else $as_nop
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_type
+
+# ac_fn_check_decl LINENO SYMBOL VAR INCLUDES EXTRA-OPTIONS FLAG-VAR
+# ------------------------------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly. Pass EXTRA-OPTIONS to the compiler, using FLAG-VAR.
+ac_fn_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+printf %s "checking whether $as_decl_name is declared... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  eval ac_save_FLAGS=\$$6
+  as_fn_append $6 " $5"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int main (void)
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  eval "$3=yes"
+else $as_nop
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  eval $6=\$ac_save_FLAGS
+
+fi
+eval ac_res=\$$3
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_check_decl
+
+# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
+# ----------------------------------------------------
+# Tries to find if the field MEMBER exists in type AGGR, after including
+# INCLUDES, setting cache variable VAR accordingly.
+ac_fn_c_check_member ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+printf %s "checking for $2.$3... " >&6; }
+if eval test \${$4+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int main (void)
+{
+static $2 ac_aggr;
+if (ac_aggr.$3)
+return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  eval "$4=yes"
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int main (void)
+{
+static $2 ac_aggr;
+if (sizeof ac_aggr.$3)
+return 0;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  eval "$4=yes"
+else $as_nop
+  eval "$4=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+eval ac_res=\$$4
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_member
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
+
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by curl $as_me -, which was
+generated by GNU Autoconf 2.71.  Invocation command line was
+
+  $ $0$ac_configure_args_raw
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    printf "%s\n" "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    printf "%s\n" "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      printf "%s\n" "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      printf "%s\n" "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	printf "%s\n" "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      printf "%s\n" "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      printf "%s\n" "$as_me: caught signal $ac_signal"
+    printf "%s\n" "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+printf "%s\n" "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
+
+printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
+
+printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
+
+printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
+
+printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
+
+printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+if test -n "$CONFIG_SITE"; then
+  ac_site_files="$CONFIG_SITE"
+elif test "x$prefix" != xNONE; then
+  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
+else
+  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+fi
+
+for ac_site_file in $ac_site_files
+do
+  case $ac_site_file in #(
+  */*) :
+     ;; #(
+  *) :
+    ac_site_file=./$ac_site_file ;;
+esac
+  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Test code for whether the C compiler supports C89 (global declarations)
+ac_c_conftest_c89_globals='
+/* Does the compiler advertise C89 conformance?
+   Do not test the value of __STDC__, because some compilers set it to 0
+   while being otherwise adequately conformant. */
+#if !defined __STDC__
+# error "Compiler does not advertise C89 conformance"
+#endif
+
+#include 
+#include 
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
+struct buf { int x; };
+struct buf * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not \xHH hex character constants.
+   These do not provoke an error unfortunately, instead are silently treated
+   as an "x".  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
+   array size at least.  It is necessary to write \x00 == 0 to get something
+   that is true only with -std.  */
+int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) '\''x'\''
+int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
+               int, int);'
+
+# Test code for whether the C compiler supports C89 (body of main).
+ac_c_conftest_c89_main='
+ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
+'
+
+# Test code for whether the C compiler supports C99 (global declarations)
+ac_c_conftest_c99_globals='
+// Does the compiler advertise C99 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+# error "Compiler does not advertise C99 conformance"
+#endif
+
+#include 
+extern int puts (const char *);
+extern int printf (const char *, ...);
+extern int dprintf (int, const char *, ...);
+extern void *malloc (size_t);
+
+// Check varargs macros.  These examples are taken from C99 6.10.3.5.
+// dprintf is used instead of fprintf to avoid needing to declare
+// FILE and stderr.
+#define debug(...) dprintf (2, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+  int x = 1234;
+  int y = 5678;
+  debug ("Flag");
+  debug ("X = %d\n", x);
+  showlist (The first, second, and third items.);
+  report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+  #error "your preprocessor is broken"
+#endif
+#if BIG_OK
+#else
+  #error "your preprocessor is broken"
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+  int datasize;
+  double data[];
+};
+
+struct named_init {
+  int number;
+  const wchar_t *name;
+  double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+  // See if C++-style comments work.
+  // Iterate through items via the restricted pointer.
+  // Also check for declarations in for loops.
+  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
+    continue;
+  return 0;
+}
+
+// Check varargs and va_copy.
+static bool
+test_varargs (const char *format, ...)
+{
+  va_list args;
+  va_start (args, format);
+  va_list args_copy;
+  va_copy (args_copy, args);
+
+  const char *str = "";
+  int number = 0;
+  float fnumber = 0;
+
+  while (*format)
+    {
+      switch (*format++)
+	{
+	case '\''s'\'': // string
+	  str = va_arg (args_copy, const char *);
+	  break;
+	case '\''d'\'': // int
+	  number = va_arg (args_copy, int);
+	  break;
+	case '\''f'\'': // float
+	  fnumber = va_arg (args_copy, double);
+	  break;
+	default:
+	  break;
+	}
+    }
+  va_end (args_copy);
+  va_end (args);
+
+  return *str && number && fnumber;
+}
+'
+
+# Test code for whether the C compiler supports C99 (body of main).
+ac_c_conftest_c99_main='
+  // Check bool.
+  _Bool success = false;
+  success |= (argc != 0);
+
+  // Check restrict.
+  if (test_restrict ("String literal") == 0)
+    success = true;
+  char *restrict newvar = "Another string";
+
+  // Check varargs.
+  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
+  test_varargs_macros ();
+
+  // Check flexible array members.
+  struct incomplete_array *ia =
+    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  ia->datasize = 10;
+  for (int i = 0; i < ia->datasize; ++i)
+    ia->data[i] = i * 1.234;
+
+  // Check named initializers.
+  struct named_init ni = {
+    .number = 34,
+    .name = L"Test wide string",
+    .average = 543.34343,
+  };
+
+  ni.number = 58;
+
+  int dynamic_array[ni.number];
+  dynamic_array[0] = argv[0][0];
+  dynamic_array[ni.number - 1] = 543;
+
+  // work around unused variable warnings
+  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
+	 || dynamic_array[ni.number - 1] != 543);
+'
+
+# Test code for whether the C compiler supports C11 (global declarations)
+ac_c_conftest_c11_globals='
+// Does the compiler advertise C11 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
+# error "Compiler does not advertise C11 conformance"
+#endif
+
+// Check _Alignas.
+char _Alignas (double) aligned_as_double;
+char _Alignas (0) no_special_alignment;
+extern char aligned_as_int;
+char _Alignas (0) _Alignas (int) aligned_as_int;
+
+// Check _Alignof.
+enum
+{
+  int_alignment = _Alignof (int),
+  int_array_alignment = _Alignof (int[100]),
+  char_alignment = _Alignof (char)
+};
+_Static_assert (0 < -_Alignof (int), "_Alignof is signed");
+
+// Check _Noreturn.
+int _Noreturn does_not_return (void) { for (;;) continue; }
+
+// Check _Static_assert.
+struct test_static_assert
+{
+  int x;
+  _Static_assert (sizeof (int) <= sizeof (long int),
+                  "_Static_assert does not work in struct");
+  long int y;
+};
+
+// Check UTF-8 literals.
+#define u8 syntax error!
+char const utf8_literal[] = u8"happens to be ASCII" "another string";
+
+// Check duplicate typedefs.
+typedef long *long_ptr;
+typedef long int *long_ptr;
+typedef long_ptr long_ptr;
+
+// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
+struct anonymous
+{
+  union {
+    struct { int i; int j; };
+    struct { int k; long int l; } w;
+  };
+  int m;
+} v1;
+'
+
+# Test code for whether the C compiler supports C11 (body of main).
+ac_c_conftest_c11_main='
+  _Static_assert ((offsetof (struct anonymous, i)
+		   == offsetof (struct anonymous, w.k)),
+		  "Anonymous union alignment botch");
+  v1.i = 2;
+  v1.w.k = 5;
+  ok |= v1.i != 5;
+'
+
+# Test code for whether the C compiler supports C11 (complete).
+ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+${ac_c_conftest_c11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  ${ac_c_conftest_c11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C99 (complete).
+ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C89 (complete).
+ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  return ok;
+}
+"
+
+as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H"
+as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H"
+as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H"
+as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H"
+as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H"
+as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
+as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
+as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
+as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
+
+# Auxiliary files required by this configure script.
+ac_aux_files="ltmain.sh config.guess config.sub missing compile install-sh"
+
+# Locations in which to look for auxiliary files.
+ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.."
+
+# Search for a directory containing all of the required auxiliary files,
+# $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
+# If we don't find one directory that contains all the files we need,
+# we report the set of missing files from the *first* directory in
+# $ac_aux_dir_candidates and give up.
+ac_missing_aux_files=""
+ac_first_candidate=:
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in $ac_aux_dir_candidates
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+  as_found=:
+
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
+  ac_aux_dir_found=yes
+  ac_install_sh=
+  for ac_aux in $ac_aux_files
+  do
+    # As a special case, if "install-sh" is required, that requirement
+    # can be satisfied by any of "install-sh", "install.sh", or "shtool",
+    # and $ac_install_sh is set appropriately for whichever one is found.
+    if test x"$ac_aux" = x"install-sh"
+    then
+      if test -f "${as_dir}install-sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
+        ac_install_sh="${as_dir}install-sh -c"
+      elif test -f "${as_dir}install.sh"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
+        ac_install_sh="${as_dir}install.sh -c"
+      elif test -f "${as_dir}shtool"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
+        ac_install_sh="${as_dir}shtool install -c"
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} install-sh"
+        else
+          break
+        fi
+      fi
+    else
+      if test -f "${as_dir}${ac_aux}"; then
+        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
+      else
+        ac_aux_dir_found=no
+        if $ac_first_candidate; then
+          ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
+        else
+          break
+        fi
+      fi
+    fi
+  done
+  if test "$ac_aux_dir_found" = yes; then
+    ac_aux_dir="$as_dir"
+    break
+  fi
+  ac_first_candidate=false
+
+  as_found=false
+done
+IFS=$as_save_IFS
+if $as_found
+then :
+
+else $as_nop
+  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+fi
+
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+if test -f "${ac_aux_dir}config.guess"; then
+  ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
+fi
+if test -f "${ac_aux_dir}config.sub"; then
+  ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
+fi
+if test -f "$ac_aux_dir/configure"; then
+  ac_configure="$SHELL ${ac_aux_dir}configure"
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+	    and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+# using curl-override.m4
+
+
+
+
+
+ac_config_headers="$ac_config_headers lib/curl_config.h"
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
+printf %s "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
+    # Check whether --enable-maintainer-mode was given.
+if test ${enable_maintainer_mode+y}
+then :
+  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
+else $as_nop
+  USE_MAINTAINER_MODE=no
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
+printf "%s\n" "$USE_MAINTAINER_MODE" >&6; }
+   if test $USE_MAINTAINER_MODE = yes; then
+  MAINTAINER_MODE_TRUE=
+  MAINTAINER_MODE_FALSE='#'
+else
+  MAINTAINER_MODE_TRUE='#'
+  MAINTAINER_MODE_FALSE=
+fi
+
+  MAINT=$MAINTAINER_MODE_TRUE
+
+
+# Check whether --enable-silent-rules was given.
+if test ${enable_silent_rules+y}
+then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=0;;
+esac
+am_make=${MAKE-make}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+printf %s "checking whether $am_make supports nested variables... " >&6; }
+if test ${am_cv_make_support_nested_variables+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if printf "%s\n" 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+printf "%s\n" "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable debug build options" >&5
+printf %s "checking whether to enable debug build options... " >&6; }
+  OPT_DEBUG_BUILD="default"
+  # Check whether --enable-debug was given.
+if test ${enable_debug+y}
+then :
+  enableval=$enable_debug; OPT_DEBUG_BUILD=$enableval
+fi
+
+  case "$OPT_DEBUG_BUILD" in
+    no)
+            want_debug="no"
+      ;;
+    default)
+            want_debug="no"
+      ;;
+    *)
+            want_debug="yes"
+
+printf "%s\n" "#define DEBUGBUILD 1" >>confdefs.h
+
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_debug" >&5
+printf "%s\n" "$want_debug" >&6; }
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable compiler optimizer" >&5
+printf %s "checking whether to enable compiler optimizer... " >&6; }
+  OPT_COMPILER_OPTIMIZE="default"
+  # Check whether --enable-optimize was given.
+if test ${enable_optimize+y}
+then :
+  enableval=$enable_optimize; OPT_COMPILER_OPTIMIZE=$enableval
+fi
+
+  case "$OPT_COMPILER_OPTIMIZE" in
+    no)
+                              want_optimize="no"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    default)
+                                                                        if test "$want_debug" = "yes"; then
+        want_optimize="assume_no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: (assumed) no" >&5
+printf "%s\n" "(assumed) no" >&6; }
+      else
+        want_optimize="assume_yes"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: (assumed) yes" >&5
+printf "%s\n" "(assumed) yes" >&6; }
+      fi
+      ;;
+    *)
+                              want_optimize="yes"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+  esac
+
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable strict compiler warnings" >&5
+printf %s "checking whether to enable strict compiler warnings... " >&6; }
+  OPT_COMPILER_WARNINGS="default"
+  # Check whether --enable-warnings was given.
+if test ${enable_warnings+y}
+then :
+  enableval=$enable_warnings; OPT_COMPILER_WARNINGS=$enableval
+fi
+
+  case "$OPT_COMPILER_WARNINGS" in
+    no)
+            want_warnings="no"
+      ;;
+    default)
+                  want_warnings="$want_debug"
+      ;;
+    *)
+            want_warnings="yes"
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_warnings" >&5
+printf "%s\n" "$want_warnings" >&6; }
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable compiler warnings as errors" >&5
+printf %s "checking whether to enable compiler warnings as errors... " >&6; }
+  OPT_COMPILER_WERROR="default"
+  # Check whether --enable-werror was given.
+if test ${enable_werror+y}
+then :
+  enableval=$enable_werror; OPT_COMPILER_WERROR=$enableval
+fi
+
+  case "$OPT_COMPILER_WERROR" in
+    no)
+            want_werror="no"
+      ;;
+    default)
+            want_werror="no"
+      ;;
+    *)
+            want_werror="yes"
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_werror" >&5
+printf "%s\n" "$want_werror" >&6; }
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable curl debug memory tracking" >&5
+printf %s "checking whether to enable curl debug memory tracking... " >&6; }
+  OPT_CURLDEBUG_BUILD="default"
+  # Check whether --enable-curldebug was given.
+if test ${enable_curldebug+y}
+then :
+  enableval=$enable_curldebug; OPT_CURLDEBUG_BUILD=$enableval
+fi
+
+  case "$OPT_CURLDEBUG_BUILD" in
+    no)
+            want_curldebug="no"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    default)
+                                          if test "$want_debug" = "yes"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: (assumed) yes" >&5
+printf "%s\n" "(assumed) yes" >&6; }
+
+printf "%s\n" "#define CURLDEBUG 1" >>confdefs.h
+
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      fi
+      want_curldebug_assumed="yes"
+      want_curldebug="$want_debug"
+      ;;
+    *)
+                                                      want_curldebug="yes"
+
+printf "%s\n" "#define CURLDEBUG 1" >>confdefs.h
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable hiding of library internal symbols" >&5
+printf %s "checking whether to enable hiding of library internal symbols... " >&6; }
+  OPT_SYMBOL_HIDING="default"
+  # Check whether --enable-symbol-hiding was given.
+if test ${enable_symbol_hiding+y}
+then :
+  enableval=$enable_symbol_hiding; OPT_SYMBOL_HIDING=$enableval
+fi
+
+  case "$OPT_SYMBOL_HIDING" in
+    no)
+                              want_symbol_hiding="no"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    default)
+                  want_symbol_hiding="yes"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+    *)
+                        want_symbol_hiding="yes"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable c-ares for DNS lookups" >&5
+printf %s "checking whether to enable c-ares for DNS lookups... " >&6; }
+  OPT_ARES="default"
+  # Check whether --enable-ares was given.
+if test ${enable_ares+y}
+then :
+  enableval=$enable_ares; OPT_ARES=$enableval
+fi
+
+  case "$OPT_ARES" in
+    no)
+            want_ares="no"
+      ;;
+    default)
+            want_ares="no"
+      ;;
+    *)
+            want_ares="yes"
+      if test -n "$enableval" && test "$enableval" != "yes"; then
+        want_ares_path="$enableval"
+      fi
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_ares" >&5
+printf "%s\n" "$want_ares" >&6; }
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to disable dependency on -lrt" >&5
+printf %s "checking whether to disable dependency on -lrt... " >&6; }
+  OPT_RT="default"
+  # Check whether --enable-rt was given.
+if test ${enable_rt+y}
+then :
+  enableval=$enable_rt; OPT_RT=$enableval
+fi
+
+  case "$OPT_RT" in
+    no)
+            dontwant_rt="yes"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+    default)
+            dontwant_rt="no"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: (assumed no)" >&5
+printf "%s\n" "(assumed no)" >&6; }
+      ;;
+    *)
+            dontwant_rt="no"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+  esac
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable ECH support" >&5
+printf %s "checking whether to enable ECH support... " >&6; }
+  OPT_ECH="default"
+  # Check whether --enable-ech was given.
+if test ${enable_ech+y}
+then :
+  enableval=$enable_ech; OPT_ECH=$enableval
+fi
+
+  case "$OPT_ECH" in
+    no)
+            want_ech="no"
+      curl_ech_msg="no      (--enable-ech)"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    default)
+            want_ech="no"
+      curl_ech_msg="no      (--enable-ech)"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    *)
+            want_ech="yes"
+      curl_ech_msg="enabled (--disable-ech)"
+      experimental="ech"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+  esac
+
+
+#
+# Check that 'XC_CONFIGURE_PREAMBLE' has already run.
+#
+
+if test -z "$xc_configure_preamble_result"; then
+  as_fn_error $? "xc_configure_preamble_result not set (internal problem)" "$LINENO" 5
+fi
+
+#
+# Check that 'PATH_SEPARATOR' has already been set.
+#
+
+if test -z "$xc_PATH_SEPARATOR"; then
+  as_fn_error $? "xc_PATH_SEPARATOR not set (internal problem)" "$LINENO" 5
+fi
+if test -z "$PATH_SEPARATOR"; then
+  as_fn_error $? "PATH_SEPARATOR not set (internal or config.site problem)" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for path separator" >&5
+printf %s "checking for path separator... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PATH_SEPARATOR" >&5
+printf "%s\n" "$PATH_SEPARATOR" >&6; }
+if test "x$PATH_SEPARATOR" != "x$xc_PATH_SEPARATOR"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for initial path separator" >&5
+printf %s "checking for initial path separator... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_PATH_SEPARATOR" >&5
+printf "%s\n" "$xc_PATH_SEPARATOR" >&6; }
+  as_fn_error $? "path separator mismatch (internal or config.site problem)" "$LINENO" 5
+fi
+
+
+#
+# save the configure arguments
+#
+CONFIGURE_OPTIONS="\"$ac_configure_args\""
+
+
+if test -z "$SED"; then
+    # Extract the first word of "sed", so it can be a program name with args.
+set dummy sed; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_SED+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $SED in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_SED="$SED" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_SED="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_SED" && ac_cv_path_SED="not_found"
+  ;;
+esac
+fi
+SED=$ac_cv_path_SED
+if test -n "$SED"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SED" >&5
+printf "%s\n" "$SED" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  if test -z "$SED" || test "$SED" = "not_found"; then
+    as_fn_error $? "sed not found in PATH. Cannot continue without sed." "$LINENO" 5
+  fi
+fi
+
+
+if test -z "$GREP"; then
+    # Extract the first word of "grep", so it can be a program name with args.
+set dummy grep; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_GREP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $GREP in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_GREP="$GREP" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_GREP="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_GREP" && ac_cv_path_GREP="not_found"
+  ;;
+esac
+fi
+GREP=$ac_cv_path_GREP
+if test -n "$GREP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $GREP" >&5
+printf "%s\n" "$GREP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  if test -z "$GREP" || test "$GREP" = "not_found"; then
+    as_fn_error $? "grep not found in PATH. Cannot continue without grep." "$LINENO" 5
+  fi
+fi
+
+
+if test -z "$EGREP"; then
+    if echo a | ($GREP -E '(a|b)') >/dev/null 2>&1; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+printf %s "checking for egrep... " >&6; }
+    EGREP="$GREP -E"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $EGREP" >&5
+printf "%s\n" "$EGREP" >&6; }
+  else
+    # Extract the first word of "egrep", so it can be a program name with args.
+set dummy egrep; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_EGREP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $EGREP in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_EGREP="$EGREP" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_EGREP="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_EGREP" && ac_cv_path_EGREP="not_found"
+  ;;
+esac
+fi
+EGREP=$ac_cv_path_EGREP
+if test -n "$EGREP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $EGREP" >&5
+printf "%s\n" "$EGREP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$EGREP" || test "$EGREP" = "not_found"; then
+  as_fn_error $? "egrep not found in PATH. Cannot continue without egrep." "$LINENO" 5
+fi
+
+
+if test -z "$AR"; then
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $AR in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_AR="$AR" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_AR="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+AR=$ac_cv_path_AR
+if test -n "$AR"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+printf "%s\n" "$AR" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_AR"; then
+  ac_pt_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_AR in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_AR="$ac_pt_AR" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_AR="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_AR=$ac_cv_path_ac_pt_AR
+if test -n "$ac_pt_AR"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_AR" >&5
+printf "%s\n" "$ac_pt_AR" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_AR" = x; then
+    AR="not_found"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_pt_AR
+  fi
+else
+  AR="$ac_cv_path_AR"
+fi
+
+  if test -z "$AR" || test "$AR" = "not_found"; then
+    as_fn_error $? "ar not found in PATH. Cannot continue without ar." "$LINENO" 5
+  fi
+fi
+
+
+
+
+CURLVERSION=`$SED -ne 's/^#define LIBCURL_VERSION "\(.*\)".*/\1/p' ${srcdir}/include/curl/curlver.h`
+
+  xc_prog_cc_prev_IFS=$IFS
+  xc_prog_cc_prev_LIBS=$LIBS
+  xc_prog_cc_prev_CFLAGS=$CFLAGS
+  xc_prog_cc_prev_LDFLAGS=$LDFLAGS
+  xc_prog_cc_prev_CPPFLAGS=$CPPFLAGS
+
+
+
+  xc_bad_var_libs=no
+  for xc_word in $LIBS; do
+    case "$xc_word" in
+      -l* | --library=*)
+        :
+        ;;
+      *)
+        xc_bad_var_libs=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_libs = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using LIBS: $LIBS" >&5
+printf "%s\n" "$as_me: using LIBS: $LIBS" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: LIBS note: LIBS should only be used to specify libraries (-lname)." >&5
+printf "%s\n" "$as_me: LIBS note: LIBS should only be used to specify libraries (-lname)." >&6;}
+  fi
+
+
+  xc_bad_var_ldflags=no
+  for xc_word in $LDFLAGS; do
+    case "$xc_word" in
+      -D*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -U*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -I*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_ldflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_ldflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using LDFLAGS: $LDFLAGS" >&5
+printf "%s\n" "$as_me: using LDFLAGS: $LDFLAGS" >&6;}
+    xc_bad_var_msg="LDFLAGS note: LDFLAGS should only be used to specify linker flags, not"
+    for xc_word in $LDFLAGS; do
+      case "$xc_word" in
+        -D*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -U*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -I*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+
+  xc_bad_var_cppflags=no
+  for xc_word in $CPPFLAGS; do
+    case "$xc_word" in
+      -rpath*)
+        xc_bad_var_cppflags=yes
+        ;;
+      -L* | --library-path=*)
+        xc_bad_var_cppflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_cppflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_cppflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using CPPFLAGS: $CPPFLAGS" >&5
+printf "%s\n" "$as_me: using CPPFLAGS: $CPPFLAGS" >&6;}
+    xc_bad_var_msg="CPPFLAGS note: CPPFLAGS should only be used to specify C preprocessor flags, not"
+    for xc_word in $CPPFLAGS; do
+      case "$xc_word" in
+        -rpath*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -L* | --library-path=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+
+  xc_bad_var_cflags=no
+  for xc_word in $CFLAGS; do
+    case "$xc_word" in
+      -D*)
+        xc_bad_var_cflags=yes
+        ;;
+      -U*)
+        xc_bad_var_cflags=yes
+        ;;
+      -I*)
+        xc_bad_var_cflags=yes
+        ;;
+      -rpath*)
+        xc_bad_var_cflags=yes
+        ;;
+      -L* | --library-path=*)
+        xc_bad_var_cflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_cflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_cflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using CFLAGS: $CFLAGS" >&5
+printf "%s\n" "$as_me: using CFLAGS: $CFLAGS" >&6;}
+    xc_bad_var_msg="CFLAGS note: CFLAGS should only be used to specify C compiler flags, not"
+    for xc_word in $CFLAGS; do
+      case "$xc_word" in
+        -D*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -U*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -I*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -rpath*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -L* | --library-path=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+  if test $xc_bad_var_libs = yes ||
+     test $xc_bad_var_cflags = yes ||
+     test $xc_bad_var_ldflags = yes ||
+     test $xc_bad_var_cppflags = yes; then
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Continuing even with errors mentioned immediately above this line." >&5
+printf "%s\n" "$as_me: WARNING: Continuing even with errors mentioned immediately above this line." >&2;}
+  fi
+
+
+
+  # Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+printf %s "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if test ${ac_cv_path_install+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    # Account for fact that we put trailing slashes in our PATH walk.
+case $as_dir in #((
+  ./ | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir/" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test ${ac_cv_path_install+y}; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+printf "%s\n" "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+
+
+
+
+
+
+
+
+
+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
+set dummy ${ac_tool_prefix}clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "clang", so it can be a program name with args.
+set dummy clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
+
+
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion -version; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+printf %s "checking whether the C compiler works... " >&6; }
+ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else $as_nop
+  ac_file=''
+fi
+if test -z "$ac_file"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+printf %s "checking for C compiler default output file name... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf "%s\n" "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+printf %s "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf "%s\n" "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int main (void)
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+printf %s "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf "%s\n" "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+printf %s "checking for suffix of object files... " >&6; }
+if test ${ac_cv_objext+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf "%s\n" "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+printf %s "checking whether the compiler supports GNU C... " >&6; }
+if test ${ac_cv_c_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_compiler_gnu=yes
+else $as_nop
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+y}
+ac_save_CFLAGS=$CFLAGS
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+printf %s "checking whether $CC accepts -g... " >&6; }
+if test ${ac_cv_prog_cc_g+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_g=yes
+else $as_nop
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+else $as_nop
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+if test $ac_test_CFLAGS; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+ac_prog_cc_stdc=no
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+printf %s "checking for $CC option to enable C11 features... " >&6; }
+if test ${ac_cv_prog_cc_c11+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c11=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c11_program
+_ACEOF
+for ac_arg in '' -std=gnu11
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
+
+if test "x$ac_cv_prog_cc_c11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
+  ac_prog_cc_stdc=c11
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+printf %s "checking for $CC option to enable C99 features... " >&6; }
+if test ${ac_cv_prog_cc_c99+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c99_program
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
+
+if test "x$ac_cv_prog_cc_c99" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c99" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+  ac_prog_cc_stdc=c99
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+printf %s "checking for $CC option to enable C89 features... " >&6; }
+if test ${ac_cv_prog_cc_c89+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c89_program
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
+
+if test "x$ac_cv_prog_cc_c89" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c89" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+  ac_prog_cc_stdc=c89
+fi
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+printf %s "checking whether $CC understands -c and -o together... " >&6; }
+if test ${am_cv_prog_cc_c_o+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+printf "%s\n" "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+printf %s "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if test ${ac_cv_prog_CPP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+      # Double quotes because $CC needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+else $as_nop
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+  # Broken: success on invalid input.
+continue
+else $as_nop
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok
+then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+printf "%s\n" "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+else $as_nop
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+  # Broken: success on invalid input.
+continue
+else $as_nop
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok
+then :
+
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+  IFS=$xc_prog_cc_prev_IFS
+  LIBS=$xc_prog_cc_prev_LIBS
+  CFLAGS=$xc_prog_cc_prev_CFLAGS
+  LDFLAGS=$xc_prog_cc_prev_LDFLAGS
+  CPPFLAGS=$xc_prog_cc_prev_CPPFLAGS
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+printf %s "checking for a sed that does not truncate output... " >&6; }
+if test ${ac_cv_path_SED+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in sed gsed
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+printf "%s\n" "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for code coverage support" >&5
+printf %s "checking for code coverage support... " >&6; }
+  coverage="no"
+  curl_coverage_msg="disabled"
+
+    # Check whether --enable-code-coverage was given.
+if test ${enable_code_coverage+y}
+then :
+  enableval=$enable_code_coverage; coverage="$enableval"
+fi
+
+
+    if  test "$GCC" != "yes"
+then :
+  coverage="no"
+fi
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $coverage" >&5
+printf "%s\n" "$coverage" >&6; }
+
+  if test "x$coverage" = "xyes"; then
+    curl_coverage_msg="enabled"
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcov", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcov; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_GCOV+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$GCOV"; then
+  ac_cv_prog_GCOV="$GCOV" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_GCOV="${ac_tool_prefix}gcov"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+GCOV=$ac_cv_prog_GCOV
+if test -n "$GCOV"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $GCOV" >&5
+printf "%s\n" "$GCOV" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_GCOV"; then
+  ac_ct_GCOV=$GCOV
+  # Extract the first word of "gcov", so it can be a program name with args.
+set dummy gcov; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_GCOV+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_GCOV"; then
+  ac_cv_prog_ac_ct_GCOV="$ac_ct_GCOV" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_GCOV="gcov"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_GCOV=$ac_cv_prog_ac_ct_GCOV
+if test -n "$ac_ct_GCOV"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_GCOV" >&5
+printf "%s\n" "$ac_ct_GCOV" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_GCOV" = x; then
+    GCOV="gcov"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    GCOV=$ac_ct_GCOV
+  fi
+else
+  GCOV="$ac_cv_prog_GCOV"
+fi
+
+    if test -z "$GCOV"; then
+      as_fn_error $? "needs gcov for code coverage" "$LINENO" 5
+    fi
+    # Extract the first word of "lcov", so it can be a program name with args.
+set dummy lcov; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_LCOV+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$LCOV"; then
+  ac_cv_prog_LCOV="$LCOV" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LCOV="lcov"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LCOV=$ac_cv_prog_LCOV
+if test -n "$LCOV"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LCOV" >&5
+printf "%s\n" "$LCOV" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+    if test -z "$LCOV"; then
+      as_fn_error $? "needs lcov for code coverage" "$LINENO" 5
+    fi
+
+    CPPFLAGS="$CPPFLAGS -DNDEBUG"
+    CFLAGS="$CFLAGS -O0 -g -fprofile-arcs -ftest-coverage"
+    LIBS="$LIBS -lgcov"
+  fi
+
+
+am__api_version='1.16'
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+printf %s "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`printf "%s\n" "$program_transform_name" | sed "$ac_script"`
+
+
+  if test x"${MISSING+set}" != xset; then
+  MISSING="\${SHELL} '$am_aux_dir/missing'"
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+printf "%s\n" "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+printf "%s\n" "$STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+printf "%s\n" "$ac_ct_STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a race-free mkdir -p" >&5
+printf %s "checking for a race-free mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if test ${ac_cv_path_mkdir+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir ('*'coreutils) '* | \
+	     'BusyBox '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test ${ac_cv_path_mkdir+y}; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+printf "%s\n" "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AWK+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+printf "%s\n" "$AWK" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+printf %s "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`printf "%s\n" "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval test \${ac_cv_prog_make_${ac_make}_set+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  SET_MAKE=
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+printf %s "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
+am__doit:
+	@echo this is the am__doit target >confinc.out
+.PHONY: am__doit
+END
+am__include="#"
+am__quote=
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
+     ;;
+esac
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
+  fi
+done
+rm -f confinc.* confmf.*
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+printf "%s\n" "${_am_result}" >&6; }
+
+# Check whether --enable-dependency-tracking was given.
+if test ${enable_dependency_tracking+y}
+then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+## --------------------------------------- ##
+##  Start of automake initialization code  ##
+## --------------------------------------- ##
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='curl'
+ VERSION='-'
+
+
+printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
+
+
+printf "%s\n" "#define VERSION \"$VERSION\"" >>confdefs.h
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# 
+# 
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+
+
+
+
+depcc="$CC"   am_compiler_list=
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+printf %s "checking dependency style of $depcc... " >&6; }
+if test ${am_cv_CC_dependencies_compiler_type+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+printf "%s\n" "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+# Variables for tags utilities; see am/tags.am
+if test -z "$CTAGS"; then
+  CTAGS=ctags
+fi
+
+if test -z "$ETAGS"; then
+  ETAGS=etags
+fi
+
+if test -z "$CSCOPE"; then
+  CSCOPE=cscope
+fi
+
+
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: 
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: .
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+  fi
+fi
+
+## ------------------------------------- ##
+##  End of automake initialization code  ##
+## ------------------------------------- ##
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking curl version" >&5
+printf %s "checking curl version... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CURLVERSION" >&5
+printf "%s\n" "$CURLVERSION" >&6; }
+
+
+
+VERSIONNUM=`$SED -ne 's/^#define LIBCURL_VERSION_NUM 0x\([0-9A-Fa-f]*\).*/\1/p' ${srcdir}/include/curl/curlver.h`
+
+
+PKGADD_PKG="HAXXcurl"
+PKGADD_NAME="curl - a client that groks URLs"
+PKGADD_VENDOR="curl.se"
+
+
+
+
+    curl_ssl_msg="no      (--with-{openssl,gnutls,nss,mbedtls,wolfssl,schannel,secure-transport,amissl,bearssl,rustls} )"
+    curl_ssh_msg="no      (--with-{libssh,libssh2})"
+   curl_zlib_msg="no      (--with-zlib)"
+ curl_brotli_msg="no      (--with-brotli)"
+   curl_zstd_msg="no      (--with-zstd)"
+    curl_gss_msg="no      (--with-gssapi)"
+  curl_gsasl_msg="no      (--with-gsasl)"
+curl_tls_srp_msg="no      (--enable-tls-srp)"
+    curl_res_msg="default (--enable-ares / --enable-threaded-resolver)"
+   curl_ipv6_msg="no      (--enable-ipv6)"
+curl_unix_sockets_msg="no      (--enable-unix-sockets)"
+    curl_idn_msg="no      (--with-{libidn2,winidn})"
+ curl_manual_msg="no      (--enable-manual)"
+curl_libcurl_msg="enabled (--disable-libcurl-option)"
+curl_verbose_msg="enabled (--disable-verbose)"
+   curl_sspi_msg="no      (--enable-sspi)"
+   curl_ldap_msg="no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)"
+  curl_ldaps_msg="no      (--enable-ldaps)"
+   curl_rtsp_msg="no      (--enable-rtsp)"
+   curl_rtmp_msg="no      (--with-librtmp)"
+    curl_psl_msg="no      (--with-libpsl)"
+ curl_altsvc_msg="enabled (--disable-alt-svc)"
+ curl_headers_msg="no      (--enable-headers-api)"
+   curl_hsts_msg="enabled (--disable-hsts)"
+    ssl_backends=
+     curl_h1_msg="enabled (internal)"
+     curl_h2_msg="no      (--with-nghttp2, --with-hyper)"
+     curl_h3_msg="no      (--with-ngtcp2, --with-quiche --with-msh3)"
+
+enable_altsvc="yes"
+hsts="yes"
+
+INITIAL_LDFLAGS=$LDFLAGS
+INITIAL_LIBS=$LIBS
+
+OPT_SCHANNEL=no
+
+# Check whether --with-schannel was given.
+if test ${with_schannel+y}
+then :
+  withval=$with_schannel; OPT_SCHANNEL=$withval
+  TLSCHOICE="schannel"
+fi
+
+
+OPT_SECURETRANSPORT=no
+
+# Check whether --with-secure-transport was given.
+if test ${with_secure_transport+y}
+then :
+  withval=$with_secure_transport; OPT_SECURETRANSPORT=$withval
+  test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }Secure-Transport"
+
+fi
+
+
+OPT_AMISSL=no
+
+# Check whether --with-amissl was given.
+if test ${with_amissl+y}
+then :
+  withval=$with_amissl; OPT_AMISSL=$withval
+  test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }AmiSSL"
+fi
+
+
+OPT_OPENSSL=no
+ca="no"
+
+# Check whether --with-ssl was given.
+if test ${with_ssl+y}
+then :
+  withval=$with_ssl; OPT_SSL=$withval
+  OPT_OPENSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }OpenSSL"
+fi
+
+  fi
+
+
+# Check whether --with-openssl was given.
+if test ${with_openssl+y}
+then :
+  withval=$with_openssl; OPT_OPENSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }OpenSSL"
+fi
+
+  fi
+
+OPT_GNUTLS=no
+
+# Check whether --with-gnutls was given.
+if test ${with_gnutls+y}
+then :
+  withval=$with_gnutls; OPT_GNUTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }GnuTLS"
+fi
+
+  fi
+
+OPT_MBEDTLS=no
+
+# Check whether --with-mbedtls was given.
+if test ${with_mbedtls+y}
+then :
+  withval=$with_mbedtls; OPT_MBEDTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }mbedTLS"
+fi
+
+  fi
+
+OPT_WOLFSSL=no
+
+# Check whether --with-wolfssl was given.
+if test ${with_wolfssl+y}
+then :
+  withval=$with_wolfssl; OPT_WOLFSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }wolfSSL"
+fi
+
+  fi
+
+OPT_BEARSSL=no
+
+# Check whether --with-bearssl was given.
+if test ${with_bearssl+y}
+then :
+  withval=$with_bearssl; OPT_BEARSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }BearSSL"
+fi
+
+  fi
+
+OPT_RUSTLS=no
+
+# Check whether --with-rustls was given.
+if test ${with_rustls+y}
+then :
+  withval=$with_rustls; OPT_RUSTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }rustls"
+fi
+
+  fi
+
+OPT_NSS_AWARE=no
+
+# Check whether --with-nss-deprecated was given.
+if test ${with_nss_deprecated+y}
+then :
+  withval=$with_nss_deprecated; if test X"$withval" != Xno; then
+    OPT_NSS_AWARE=$withval
+  fi
+
+fi
+
+
+OPT_NSS=no
+
+# Check whether --with-nss was given.
+if test ${with_nss+y}
+then :
+  withval=$with_nss; OPT_NSS=$withval
+  if test X"$withval" != Xno; then
+
+    if test X"$OPT_NSS_AWARE" = "Xno" ; then
+      as_fn_error $? "NSS use must be confirmed using --with-nss-deprecated. NSS support will be dropped from curl in August 2022. See docs/DEPRECATE.md" "$LINENO" 5
+    fi
+
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE
+else $as_nop
+  }NSS"
+  fi
+
+fi
+
+
+if test -z "$TLSCHOICE"; then
+  if test "x$OPT_SSL" != "xno"; then
+    as_fn_error $? "select TLS backend(s) or disable TLS with --without-ssl.
+
+Select from these:
+
+  --with-amissl
+  --with-bearssl
+  --with-gnutls
+  --with-mbedtls
+  --with-nss
+  --with-openssl (also works for BoringSSL and libressl)
+  --with-rustls
+  --with-schannel
+  --with-secure-transport
+  --with-wolfssl
+" "$LINENO" 5
+  fi
+fi
+
+
+# Check whether --with-darwinssl was given.
+if test ${with_darwinssl+y}
+then :
+  withval=$with_darwinssl; as_fn_error $? "--with-darwin-ssl no longer works!" "$LINENO" 5
+fi
+
+
+
+
+
+  # Make sure we can run config.sub.
+$SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+printf %s "checking build system type... " >&6; }
+if test ${ac_cv_build+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+printf "%s\n" "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+printf %s "checking host system type... " >&6; }
+if test ${ac_cv_host+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+printf "%s\n" "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+
+printf "%s\n" "#define OS \"${host}\"" >>confdefs.h
+
+
+# Silence warning: ar: 'u' modifier ignored since 'D' is the default
+AR_FLAGS=cr
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+printf %s "checking for grep that handles long lines and -e... " >&6; }
+if test ${ac_cv_path_GREP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in grep ggrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+printf "%s\n" "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+printf %s "checking for egrep... " >&6; }
+if test ${ac_cv_path_EGREP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in egrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+printf "%s\n" "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if OS is AIX (to define _ALL_SOURCE)" >&5
+printf %s "checking if OS is AIX (to define _ALL_SOURCE)... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef _AIX
+   yes_this_is_aix
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "yes_this_is_aix" >/dev/null 2>&1
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    printf "%s\n" "#define _ALL_SOURCE 1" >>confdefs.h
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -rf conftest*
+
+
+
+
+    #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _THREAD_SAFE is already defined" >&5
+printf %s "checking if _THREAD_SAFE is already defined... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#ifdef _THREAD_SAFE
+      int dummy=1;
+#else
+      force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tmp_thread_safe_initially_defined="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tmp_thread_safe_initially_defined="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  #
+  if test "$tmp_thread_safe_initially_defined" = "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _THREAD_SAFE is actually needed" >&5
+printf %s "checking if _THREAD_SAFE is actually needed... " >&6; }
+
+  case $host_os in
+    aix[123].* | aix4.[012].*)
+            tmp_need_thread_safe="no"
+      ;;
+    aix*)
+            tmp_need_thread_safe="yes"
+      ;;
+    *)
+      tmp_need_thread_safe="no"
+      ;;
+  esac
+
+    if test "$tmp_need_thread_safe" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _THREAD_SAFE is onwards defined" >&5
+printf %s "checking if _THREAD_SAFE is onwards defined... " >&6; }
+  if test "$tmp_thread_safe_initially_defined" = "yes" ||
+    test "$tmp_need_thread_safe" = "yes"; then
+
+
+printf "%s\n" "#define NEED_THREAD_SAFE 1" >>confdefs.h
+
+cat >>confdefs.h <<_EOF
+#ifndef _THREAD_SAFE
+#  define _THREAD_SAFE
+#endif
+_EOF
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+  #
+
+
+    #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _REENTRANT is already defined" >&5
+printf %s "checking if _REENTRANT is already defined... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#ifdef _REENTRANT
+      int dummy=1;
+#else
+      force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tmp_reentrant_initially_defined="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tmp_reentrant_initially_defined="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  #
+  if test "$tmp_reentrant_initially_defined" = "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _REENTRANT is actually needed" >&5
+printf %s "checking if _REENTRANT is actually needed... " >&6; }
+
+  case $host_os in
+    solaris*)
+      tmp_need_reentrant="yes"
+      ;;
+    *)
+      tmp_need_reentrant="no"
+      ;;
+  esac
+
+    if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+      if(0 != errno)
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tmp_errno="yes"
+
+else $as_nop
+
+    tmp_errno="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test "$tmp_errno" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+#ifdef errno
+        int dummy=1;
+#else
+        force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      tmp_errno="errno_macro_defined"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define _REENTRANT
+#include 
+
+int main (void)
+{
+
+#ifdef errno
+          int dummy=1;
+#else
+          force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        tmp_errno="errno_macro_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+
+    fi
+    if test "$tmp_need_reentrant" = "no"; then
+
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gmtime_r innocuous_gmtime_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef gmtime_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char gmtime_r ();
+#if defined __stub_gmtime_r || defined __stub___gmtime_r
+choke me
+#endif
+
+int main (void)
+{
+return gmtime_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_gmtime_r="yes"
+
+else $as_nop
+
+    tmp_gmtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_gmtime_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gmtime_r" >/dev/null 2>&1
+then :
+
+      tmp_gmtime_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gmtime_r" >/dev/null 2>&1
+then :
+
+        tmp_gmtime_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define localtime_r innocuous_localtime_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef localtime_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char localtime_r ();
+#if defined __stub_localtime_r || defined __stub___localtime_r
+choke me
+#endif
+
+int main (void)
+{
+return localtime_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_localtime_r="yes"
+
+else $as_nop
+
+    tmp_localtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_localtime_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "localtime_r" >/dev/null 2>&1
+then :
+
+      tmp_localtime_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "localtime_r" >/dev/null 2>&1
+then :
+
+        tmp_localtime_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strerror_r innocuous_strerror_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strerror_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char strerror_r ();
+#if defined __stub_strerror_r || defined __stub___strerror_r
+choke me
+#endif
+
+int main (void)
+{
+return strerror_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_strerror_r="yes"
+
+else $as_nop
+
+    tmp_strerror_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_strerror_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strerror_r" >/dev/null 2>&1
+then :
+
+      tmp_strerror_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strerror_r" >/dev/null 2>&1
+then :
+
+        tmp_strerror_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strtok_r innocuous_strtok_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strtok_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char strtok_r ();
+#if defined __stub_strtok_r || defined __stub___strtok_r
+choke me
+#endif
+
+int main (void)
+{
+return strtok_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_strtok_r="yes"
+
+else $as_nop
+
+    tmp_strtok_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_strtok_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strtok_r" >/dev/null 2>&1
+then :
+
+      tmp_strtok_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strtok_r" >/dev/null 2>&1
+then :
+
+        tmp_strtok_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gethostbyname_r innocuous_gethostbyname_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef gethostbyname_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname_r ();
+#if defined __stub_gethostbyname_r || defined __stub___gethostbyname_r
+choke me
+#endif
+
+int main (void)
+{
+return gethostbyname_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_gethostbyname_r="yes"
+
+else $as_nop
+
+    tmp_gethostbyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_gethostbyname_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gethostbyname_r" >/dev/null 2>&1
+then :
+
+      tmp_gethostbyname_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gethostbyname_r" >/dev/null 2>&1
+then :
+
+        tmp_gethostbyname_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+  if test "$tmp_need_reentrant" = "no"; then
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define getprotobyname_r innocuous_getprotobyname_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef getprotobyname_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char getprotobyname_r ();
+#if defined __stub_getprotobyname_r || defined __stub___getprotobyname_r
+choke me
+#endif
+
+int main (void)
+{
+return getprotobyname_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    tmp_getprotobyname_r="yes"
+
+else $as_nop
+
+    tmp_getprotobyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test "$tmp_getprotobyname_r" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getprotobyname_r" >/dev/null 2>&1
+then :
+
+      tmp_getprotobyname_r="proto_declared"
+
+else $as_nop
+
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define _REENTRANT
+#include 
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getprotobyname_r" >/dev/null 2>&1
+then :
+
+        tmp_getprotobyname_r="proto_needs_reentrant"
+        tmp_need_reentrant="yes"
+
+fi
+rm -rf conftest*
+
+
+fi
+rm -rf conftest*
+
+  fi
+
+  fi
+
+    fi
+    if test "$tmp_need_reentrant" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if _REENTRANT is onwards defined" >&5
+printf %s "checking if _REENTRANT is onwards defined... " >&6; }
+  if test "$tmp_reentrant_initially_defined" = "yes" ||
+    test "$tmp_need_reentrant" = "yes"; then
+
+
+printf "%s\n" "#define NEED_REENTRANT 1" >>confdefs.h
+
+cat >>confdefs.h <<_EOF
+#ifndef _REENTRANT
+#  define _REENTRANT
+#endif
+_EOF
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+  #
+
+
+# Check whether --enable-largefile was given.
+if test ${enable_largefile+y}
+then :
+  enableval=$enable_largefile;
+fi
+
+if test "$enable_largefile" != no; then
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5
+printf %s "checking for special C compiler options needed for large files... " >&6; }
+if test ${ac_cv_sys_largefile_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_sys_largefile_CC=no
+     if test "$GCC" != yes; then
+       ac_save_CC=$CC
+       while :; do
+	 # IRIX 6.2 and later do not support large files by default,
+	 # so use the C compiler's -n32 option if that helps.
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+	 if ac_fn_c_try_compile "$LINENO"
+then :
+  break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+	 CC="$CC -n32"
+	 if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sys_largefile_CC=' -n32'; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+	 break
+       done
+       CC=$ac_save_CC
+       rm -f conftest.$ac_ext
+    fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5
+printf "%s\n" "$ac_cv_sys_largefile_CC" >&6; }
+  if test "$ac_cv_sys_largefile_CC" != no; then
+    CC=$CC$ac_cv_sys_largefile_CC
+  fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+printf %s "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; }
+if test ${ac_cv_sys_file_offset_bits+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  while :; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sys_file_offset_bits=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _FILE_OFFSET_BITS 64
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sys_file_offset_bits=64; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  ac_cv_sys_file_offset_bits=unknown
+  break
+done
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5
+printf "%s\n" "$ac_cv_sys_file_offset_bits" >&6; }
+case $ac_cv_sys_file_offset_bits in #(
+  no | unknown) ;;
+  *)
+printf "%s\n" "#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits" >>confdefs.h
+;;
+esac
+rm -rf conftest*
+  if test $ac_cv_sys_file_offset_bits = unknown; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5
+printf %s "checking for _LARGE_FILES value needed for large files... " >&6; }
+if test ${ac_cv_sys_large_files+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  while :; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sys_large_files=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _LARGE_FILES 1
+#include 
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 31 << 31) - 1 + ((off_t) 1 << 31 << 31))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sys_large_files=1; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  ac_cv_sys_large_files=unknown
+  break
+done
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5
+printf "%s\n" "$ac_cv_sys_large_files" >&6; }
+case $ac_cv_sys_large_files in #(
+  no | unknown) ;;
+  *)
+printf "%s\n" "#define _LARGE_FILES $ac_cv_sys_large_files" >>confdefs.h
+;;
+esac
+rm -rf conftest*
+  fi
+fi
+
+
+case `pwd` in
+  *\ * | *\	*)
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+printf "%s\n" "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.4.6'
+macro_revision='2.4.6'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+printf %s "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO ""
+}
+
+case $ECHO in
+  printf*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+printf "%s\n" "printf" >&6; } ;;
+  print*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+printf "%s\n" "print -r" >&6; } ;;
+  *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+printf "%s\n" "cat" >&6; } ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+printf %s "checking for a sed that does not truncate output... " >&6; }
+if test ${ac_cv_path_SED+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in sed gsed
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+printf "%s\n" "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+
+
+
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+printf %s "checking for fgrep... " >&6; }
+if test ${ac_cv_path_FGREP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in fgrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+printf "%s\n" "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test ${with_gnu_ld+y}
+then :
+  withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else $as_nop
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+printf %s "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+printf %s "checking for GNU ld... " >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+printf %s "checking for non-GNU ld... " >&6; }
+fi
+if test ${lt_cv_path_LD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 &5
+printf "%s\n" "$LD" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+printf %s "checking if the linker ($LD) is GNU ld... " >&6; }
+if test ${lt_cv_prog_gnu_ld+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 &5
+printf "%s\n" "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+printf %s "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if test ${lt_cv_path_NM+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM=$NM
+else
+  lt_nm_to_check=${ac_tool_prefix}nm
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS=$lt_save_ifs
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm=$ac_dir/$lt_tmp_nm
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+	case $build_os in
+	mingw*) lt_bad_file=conftest.nm/nofile ;;
+	*) lt_bad_file=/dev/null ;;
+	esac
+	case `"$tmp_nm" -B $lt_bad_file 2>&1 | $SED '1q'` in
+	*$lt_bad_file* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break 2
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | $SED '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break 2
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS=$lt_save_ifs
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+printf "%s\n" "$lt_cv_path_NM" >&6; }
+if test no != "$lt_cv_path_NM"; then
+  NM=$lt_cv_path_NM
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_DUMPBIN+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+printf "%s\n" "$DUMPBIN" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_DUMPBIN+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+printf "%s\n" "$ac_ct_DUMPBIN" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols -headers /dev/null 2>&1 | $SED '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols -headers"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+
+  if test : != "$DUMPBIN"; then
+    NM=$DUMPBIN
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+printf %s "checking the name lister ($NM) interface... " >&6; }
+if test ${lt_cv_nm_interface+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+printf "%s\n" "$lt_cv_nm_interface" >&6; }
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+printf %s "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+printf "%s\n" "no, using $LN_S" >&6; }
+fi
+
+# find the maximum length of command line arguments
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+printf %s "checking the maximum length of command line arguments... " >&6; }
+if test ${lt_cv_sys_max_cmd_len+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+    i=0
+  teststring=ABCD
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  bitrig* | darwin* | dragonfly* | freebsd* | midnightbsd* | netbsd* | openbsd*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | $SED 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test 17 != "$i" # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n "$lt_cv_sys_max_cmd_len"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+printf "%s\n" "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none" >&5
+printf "%s\n" "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+printf %s "checking how to convert $build file names to $host format... " >&6; }
+if test ${lt_cv_to_host_file_cmd+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+printf "%s\n" "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+printf %s "checking how to convert $build file names to toolchain format... " >&6; }
+if test ${lt_cv_to_tool_file_cmd+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+printf "%s\n" "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+printf %s "checking for $LD option to reload object files... " >&6; }
+if test ${lt_cv_ld_reload_flag+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_ld_reload_flag='-r'
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+printf "%s\n" "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test yes != "$GCC"; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test yes = "$GCC"; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}file", so it can be a program name with args.
+set dummy ${ac_tool_prefix}file; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_FILECMD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$FILECMD"; then
+  ac_cv_prog_FILECMD="$FILECMD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_FILECMD="${ac_tool_prefix}file"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+FILECMD=$ac_cv_prog_FILECMD
+if test -n "$FILECMD"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $FILECMD" >&5
+printf "%s\n" "$FILECMD" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_FILECMD"; then
+  ac_ct_FILECMD=$FILECMD
+  # Extract the first word of "file", so it can be a program name with args.
+set dummy file; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_FILECMD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_FILECMD"; then
+  ac_cv_prog_ac_ct_FILECMD="$ac_ct_FILECMD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_FILECMD="file"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_FILECMD=$ac_cv_prog_ac_ct_FILECMD
+if test -n "$ac_ct_FILECMD"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_FILECMD" >&5
+printf "%s\n" "$ac_ct_FILECMD" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_FILECMD" = x; then
+    FILECMD=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    FILECMD=$ac_ct_FILECMD
+  fi
+else
+  FILECMD="$ac_cv_prog_FILECMD"
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_OBJDUMP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+printf "%s\n" "$OBJDUMP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_OBJDUMP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+printf "%s\n" "$ac_ct_OBJDUMP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+printf %s "checking how to recognize dependent libraries... " >&6; }
+if test ${lt_cv_deplibs_check_method+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='$FILECMD -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  if ( file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly* | midnightbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=$FILECMD
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=$FILECMD
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd* | netbsdelf*-gnu)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=$FILECMD
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd* | bitrig*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+os2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+printf "%s\n" "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_DLLTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+printf "%s\n" "$DLLTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_DLLTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+printf "%s\n" "$ac_ct_DLLTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+printf %s "checking how to associate runtime and link libraries... " >&6; }
+if test ${lt_cv_sharedlib_from_linklib_cmd+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh;
+  # decide which one to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd=$ECHO
+  ;;
+esac
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+printf "%s\n" "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+printf "%s\n" "$AR" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_AR+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+printf "%s\n" "$ac_ct_AR" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+
+
+
+
+
+
+# Use ARFLAGS variable as AR's operation code to sync the variable naming with
+# Automake.  If both AR_FLAGS and ARFLAGS are specified, AR_FLAGS should have
+# higher priority because thats what people were doing historically (setting
+# ARFLAGS for automake and AR_FLAGS for libtool).  FIXME: Make the AR_FLAGS
+# variable obsoleted/removed.
+
+test ${AR_FLAGS+y} || AR_FLAGS=${ARFLAGS-cr}
+lt_ar_flags=$AR_FLAGS
+
+
+
+
+
+
+# Make AR_FLAGS overridable by 'make ARFLAGS='.  Don't try to run-time override
+# by AR_FLAGS because that was never working and AR_FLAGS is about to die.
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+printf %s "checking for archiver @FILE support... " >&6; }
+if test ${lt_cv_ar_at_file+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_ar_at_file=no
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test 0 -eq "$ac_status"; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	if test 0 -ne "$ac_status"; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+printf "%s\n" "$lt_cv_ar_at_file" >&6; }
+
+if test no = "$lt_cv_ar_at_file"; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+printf "%s\n" "$STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+printf "%s\n" "$ac_ct_STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+printf "%s\n" "$RANLIB" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_RANLIB+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+printf "%s\n" "$ac_ct_RANLIB" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  bitrig* | openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+printf %s "checking command to parse $NM output from $compiler object... " >&6; }
+if test ${lt_cv_sys_global_symbol_pipe+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test ia64 = "$host_cpu"; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  # Gets list of data symbols to import.
+  lt_cv_sys_global_symbol_to_import="$SED -n -e 's/^I .* \(.*\)$/\1/p'"
+  # Adjust the below global symbol transforms to fixup imported variables.
+  lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+  lt_c_name_hook=" -e 's/^I .* \(.*\)$/  {\"\1\", (void *) 0},/p'"
+  lt_c_name_lib_hook="\
+  -e 's/^I .* \(lib.*\)$/  {\"\1\", (void *) 0},/p'\
+  -e 's/^I .* \(.*\)$/  {\"lib\1\", (void *) 0},/p'"
+else
+  # Disable hooks by default.
+  lt_cv_sys_global_symbol_to_import=
+  lt_cdecl_hook=
+  lt_c_name_hook=
+  lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="$SED -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="$SED -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="$SED -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/  {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function,
+    # D for any global variable and I for any imported variable.
+    # Also find C++ and __fastcall symbols from MSVC++ or ICC,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+"     /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+"     /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+"     {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+"     s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="$SED -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | $SED '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&5
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&5 && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS=conftstm.$ac_objext
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test yes = "$pipe_works"; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+printf "%s\n" "failed" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+printf "%s\n" "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+printf %s "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test ${with_sysroot+y}
+then :
+  withval=$with_sysroot;
+else $as_nop
+  with_sysroot=no
+fi
+
+
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+   if test yes = "$GCC"; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | $SED -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+printf "%s\n" "$with_sysroot" >&6; }
+   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+   ;;
+esac
+
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+printf "%s\n" "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+printf %s "checking for a working dd... " >&6; }
+if test ${ac_cv_path_lt_DD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+if test -z "$lt_DD"; then
+  ac_path_lt_DD_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in dd
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_lt_DD="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_lt_DD" || continue
+if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi
+      $ac_path_lt_DD_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_lt_DD"; then
+    :
+  fi
+else
+  ac_cv_path_lt_DD=$lt_DD
+fi
+
+rm -f conftest.i conftest2.i conftest.out
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+printf "%s\n" "$ac_cv_path_lt_DD" >&6; }
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+printf %s "checking how to truncate binary pipes... " >&6; }
+if test ${lt_cv_truncate_bin+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+printf "%s\n" "$lt_cv_truncate_bin" >&6; }
+
+
+
+
+
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+# Check whether --enable-libtool-lock was given.
+if test ${enable_libtool_lock+y}
+then :
+  enableval=$enable_libtool_lock;
+fi
+
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out what ABI is being produced by ac_compile, and set mode
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `$FILECMD conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE=32
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE=64
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test yes = "$lt_cv_prog_gnu_ld"; then
+      case `$FILECMD conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `$FILECMD conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+mips64*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    emul=elf
+    case `$FILECMD conftest.$ac_objext` in
+      *32-bit*)
+	emul="${emul}32"
+	;;
+      *64-bit*)
+	emul="${emul}64"
+	;;
+    esac
+    case `$FILECMD conftest.$ac_objext` in
+      *MSB*)
+	emul="${emul}btsmip"
+	;;
+      *LSB*)
+	emul="${emul}ltsmip"
+	;;
+    esac
+    case `$FILECMD conftest.$ac_objext` in
+      *N32*)
+	emul="${emul}n32"
+	;;
+    esac
+    LD="${LD-ld} -m $emul"
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.  Note that the listed cases only cover the
+  # situations where additional linker options are needed (such as when
+  # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+  # vice versa); the common cases where no linker options are needed do
+  # not appear in the list.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `$FILECMD conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `$FILECMD conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -belf"
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+printf %s "checking whether the C compiler needs -belf... " >&6; }
+if test ${lt_cv_cc_needs_belf+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  lt_cv_cc_needs_belf=yes
+else $as_nop
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+printf "%s\n" "$lt_cv_cc_needs_belf" >&6; }
+  if test yes != "$lt_cv_cc_needs_belf"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS=$SAVE_CFLAGS
+  fi
+  ;;
+*-*solaris*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `$FILECMD conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*|x86_64-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD=${LD-ld}_sol2
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks=$enable_libtool_lock
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_MANIFEST_TOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$MANIFEST_TOOL"; then
+  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+printf "%s\n" "$MANIFEST_TOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+  # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_MANIFEST_TOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_MANIFEST_TOOL"; then
+  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+printf "%s\n" "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_MANIFEST_TOOL" = x; then
+    MANIFEST_TOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+  fi
+else
+  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+printf %s "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if test ${lt_cv_path_mainfest_tool+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&5
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+printf "%s\n" "$lt_cv_path_mainfest_tool" >&6; }
+if test yes != "$lt_cv_path_mainfest_tool"; then
+  MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_DSYMUTIL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+printf "%s\n" "$DSYMUTIL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_DSYMUTIL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+printf "%s\n" "$ac_ct_DSYMUTIL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_NMEDIT+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+printf "%s\n" "$NMEDIT" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_NMEDIT+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+printf "%s\n" "$ac_ct_NMEDIT" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_LIPO+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+printf "%s\n" "$LIPO" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_LIPO+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+printf "%s\n" "$ac_ct_LIPO" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_OTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+printf "%s\n" "$OTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_OTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+printf "%s\n" "$ac_ct_OTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_OTOOL64+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+printf "%s\n" "$OTOOL64" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_OTOOL64+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+printf "%s\n" "$ac_ct_OTOOL64" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+printf %s "checking for -single_module linker flag... " >&6; }
+if test ${lt_cv_apple_cc_single_mod+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_apple_cc_single_mod=no
+      if test -z "$LT_MULTI_MODULE"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&5
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+printf "%s\n" "$lt_cv_apple_cc_single_mod" >&6; }
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+printf %s "checking for -exported_symbols_list linker flag... " >&6; }
+if test ${lt_cv_ld_exported_symbols_list+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  lt_cv_ld_exported_symbols_list=yes
+else $as_nop
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS=$save_LDFLAGS
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+printf "%s\n" "$lt_cv_ld_exported_symbols_list" >&6; }
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+printf %s "checking for -force_load linker flag... " >&6; }
+if test ${lt_cv_ld_force_load+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR $AR_FLAGS libconftest.a conftest.o" >&5
+      $AR $AR_FLAGS libconftest.a conftest.o 2>&5
+      echo "$RANLIB libconftest.a" >&5
+      $RANLIB libconftest.a 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&5
+      elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+printf "%s\n" "$lt_cv_ld_force_load" >&6; }
+    case $host_os in
+    rhapsody* | darwin1.[012])
+      _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+    darwin*)
+      case $MACOSX_DEPLOYMENT_TARGET,$host in
+        10.[012],*|,*powerpc*-darwin[5-8]*)
+          _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+        *)
+          _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test yes = "$lt_cv_apple_cc_single_mod"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test yes = "$lt_cv_ld_exported_symbols_list"; then
+      _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+    fi
+    if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+ac_header= ac_cache=
+for ac_item in $ac_header_c_list
+do
+  if test $ac_cache; then
+    ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
+    if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
+      printf "%s\n" "#define $ac_item 1" >> confdefs.h
+    fi
+    ac_header= ac_cache=
+  elif test $ac_header; then
+    ac_cache=$ac_item
+  else
+    ac_header=$ac_item
+  fi
+done
+
+
+
+
+
+
+
+
+if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes
+then :
+
+printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_DLFCN_H 1" >>confdefs.h
+
+fi
+
+# ------------------------------------ #
+#  Determine libtool default behavior  #
+# ------------------------------------ #
+
+#
+# Default behavior is to enable shared and static libraries on systems
+# where libtool knows how to build both library versions, and does not
+# require separate configuration and build runs for each flavor.
+#
+
+xc_lt_want_enable_shared='yes'
+xc_lt_want_enable_static='yes'
+
+#
+# User may have disabled shared or static libraries.
+#
+case "x$enable_shared" in # (
+  xno)
+    xc_lt_want_enable_shared='no'
+    ;;
+esac
+case "x$enable_static" in # (
+  xno)
+    xc_lt_want_enable_static='no'
+    ;;
+esac
+if test "x$xc_lt_want_enable_shared" = 'xno' &&
+  test "x$xc_lt_want_enable_static" = 'xno'; then
+  as_fn_error $? "can not disable shared and static libraries simultaneously" "$LINENO" 5
+fi
+
+#
+# Default behavior on systems that require independent configuration
+# and build runs for shared and static is to enable shared libraries
+# and disable static ones. On these systems option '--disable-shared'
+# must be used in order to build a proper static library.
+#
+
+if test "x$xc_lt_want_enable_shared" = 'xyes' &&
+  test "x$xc_lt_want_enable_static" = 'xyes'; then
+  case $host_os in # (
+    pw32* | cegcc* | os2* | aix*)
+      xc_lt_want_enable_static='no'
+      ;;
+  esac
+fi
+
+#
+# Make libtool aware of current shared and static library preferences
+# taking in account that, depending on host characteristics, libtool
+# may modify these option preferences later in this configure script.
+#
+
+enable_shared=$xc_lt_want_enable_shared
+enable_static=$xc_lt_want_enable_static
+
+#
+# Default behavior is to build PIC objects for shared libraries and
+# non-PIC objects for static libraries.
+#
+
+xc_lt_want_with_pic='default'
+
+#
+# User may have specified PIC preference.
+#
+
+case "x$with_pic" in # ((
+  xno)
+    xc_lt_want_with_pic='no'
+    ;;
+  xyes)
+    xc_lt_want_with_pic='yes'
+    ;;
+esac
+
+#
+# Default behavior on some systems where building a shared library out
+# of non-PIC compiled objects will fail with following linker error
+# "relocation R_X86_64_32 can not be used when making a shared object"
+# is to build PIC objects even for static libraries. This behavior may
+# be overridden using 'configure --disable-shared --without-pic'.
+#
+
+if test "x$xc_lt_want_with_pic" = 'xdefault'; then
+  case $host_cpu in # (
+    x86_64 | amd64 | ia64)
+      case $host_os in # (
+        linux* | freebsd* | midnightbsd*)
+          xc_lt_want_with_pic='yes'
+          ;;
+      esac
+      ;;
+  esac
+fi
+
+#
+# Make libtool aware of current PIC preference taking in account that,
+# depending on host characteristics, libtool may modify PIC default
+# behavior to fit host system idiosyncrasies later in this script.
+#
+
+with_pic=$xc_lt_want_with_pic
+
+## ----------------------- ##
+##  Start of libtool code  ##
+## ----------------------- ##
+
+
+
+
+# Set options
+enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
+set dummy ${ac_tool_prefix}as; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_AS+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AS="${ac_tool_prefix}as"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AS=$ac_cv_prog_AS
+if test -n "$AS"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+printf "%s\n" "$AS" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AS"; then
+  ac_ct_AS=$AS
+  # Extract the first word of "as", so it can be a program name with args.
+set dummy as; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_AS+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_AS"; then
+  ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AS="as"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AS=$ac_cv_prog_ac_ct_AS
+if test -n "$ac_ct_AS"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
+printf "%s\n" "$ac_ct_AS" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_AS" = x; then
+    AS="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AS=$ac_ct_AS
+  fi
+else
+  AS="$ac_cv_prog_AS"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_DLLTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+printf "%s\n" "$DLLTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_DLLTOOL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+printf "%s\n" "$ac_ct_DLLTOOL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_OBJDUMP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+printf "%s\n" "$OBJDUMP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_OBJDUMP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+printf "%s\n" "$ac_ct_OBJDUMP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+  ;;
+esac
+
+test -z "$AS" && AS=as
+
+
+
+
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+        enable_dlopen=no
+
+
+
+            # Check whether --enable-shared was given.
+if test ${enable_shared+y}
+then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else $as_nop
+  enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+  # Check whether --enable-static was given.
+if test ${enable_static+y}
+then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else $as_nop
+  enable_static=yes
+fi
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test ${with_pic+y}
+then :
+  withval=$with_pic; lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else $as_nop
+  pic_mode=default
+fi
+
+
+
+
+
+
+
+
+  # Check whether --enable-fast-install was given.
+if test ${enable_fast_install+y}
+then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else $as_nop
+  enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+  shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[5-9]*,yes)
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+printf %s "checking which variant of shared library versioning to provide... " >&6; }
+
+# Check whether --with-aix-soname was given.
+if test ${with_aix_soname+y}
+then :
+  withval=$with_aix_soname; case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname
+else $as_nop
+  if test ${lt_cv_with_aix_soname+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_with_aix_soname=aix
+fi
+
+    with_aix_soname=$lt_cv_with_aix_soname
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+printf "%s\n" "$with_aix_soname" >&6; }
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+printf %s "checking for objdir... " >&6; }
+if test ${lt_cv_objdir+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+printf "%s\n" "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+printf "%s\n" "#define LT_OBJDIR \"$lt_cv_objdir/\"" >>confdefs.h
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test set != "${COLLECT_NAMES+set}"; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC and
+# ICC, which need '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+printf %s "checking for ${ac_tool_prefix}file... " >&6; }
+if test ${lt_cv_path_MAGIC_CMD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/${ac_tool_prefix}file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+printf "%s\n" "$MAGIC_CMD" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+printf %s "checking for file... " >&6; }
+if test ${lt_cv_path_MAGIC_CMD+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+printf "%s\n" "$MAGIC_CMD" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC=$CC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test yes = "$GCC"; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+printf %s "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if test ${lt_cv_prog_compiler_rtti_exceptions+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+printf "%s\n" "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+
+
+
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+  if test yes = "$GCC"; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      if test -n "$lt_prog_compiler_pic"; then
+        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      case $cc_basename in
+      nagfor*)
+        # NAG Fortran compiler
+        lt_prog_compiler_wl='-Wl,-Wl,,'
+        lt_prog_compiler_pic='-PIC'
+        lt_prog_compiler_static='-Bstatic'
+        ;;
+      esac
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='$wl-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+      case $cc_basename in
+      # old Intel for x86_64, which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	lt_prog_compiler_wl='-Wl,-Wl,,'
+	lt_prog_compiler_pic='-PIC'
+	lt_prog_compiler_static='-Bstatic'
+	;;
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | $SED 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+        *Intel*\ [CF]*Compiler*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fPIC'
+	  lt_prog_compiler_static='-static'
+	  ;;
+	*Portland\ Group*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fpic'
+	  lt_prog_compiler_static='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+printf %s "checking for $compiler option to produce PIC... " >&6; }
+if test ${lt_cv_prog_compiler_pic+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+printf "%s\n" "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+printf %s "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if test ${lt_cv_prog_compiler_pic_works+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+printf "%s\n" "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works"; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+printf %s "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if test ${lt_cv_prog_compiler_static_works+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+printf "%s\n" "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works"; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if test ${lt_cv_prog_compiler_c_o+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+printf "%s\n" "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+printf %s "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if test ${lt_cv_prog_compiler_c_o+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+printf "%s\n" "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+printf %s "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+printf "%s\n" "$hard_links" >&6; }
+  if test no = "$hard_links"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+printf "%s\n" "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+printf %s "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ' (' and ')$', so one must not match beginning or
+  # end of line.  Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+  # as well as any symbol that contains 'd'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ and ICC port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++ or Intel C++ Compiler.
+    if test yes != "$GCC"; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++ or ICC)
+    with_gnu_ld=yes
+    ;;
+  openbsd* | bitrig*)
+    with_gnu_ld=no
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    link_all_deplibs=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test yes = "$with_gnu_ld"; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test yes = "$lt_use_gnu_ld_interface"; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='$wl'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+    export_dynamic_flag_spec='$wl--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test ia64 != "$host_cpu"; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach  says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='$wl--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file, use it as
+	# is; otherwise, prepend EXPORTS...
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+          cp $export_symbols $output_objdir/$soname.def;
+        else
+          echo EXPORTS > $output_objdir/$soname.def;
+          cat $export_symbols >> $output_objdir/$soname.def;
+        fi~
+        $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      file_list_spec='@'
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+      export_dynamic_flag_spec='$wl-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='$SED "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test linux-dietlibc = "$host_os"; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test no = "$tmp_diet"
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+        nagfor*)                        # NAGFOR 5.3
+          tmp_sharedflag='-Wl,-shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | $SED 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+        if test yes = "$supports_anon_versioning"; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+            cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+            echo "local: *; };" >> $output_objdir/$libname.ver~
+            $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	tcc*)
+	  hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	  export_dynamic_flag_spec='-rdynamic'
+	  ;;
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test yes = "$supports_anon_versioning"; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+              cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+              echo "local: *; };" >> $output_objdir/$libname.ver~
+              $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test no = "$ld_shlibs"; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test ia64 = "$host_cpu"; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to GNU nm, but means don't demangle to AIX nm.
+	# Without the "-l" option, or with the "-B" option, AIX nm treats
+	# weak defined symbols like other global defined symbols, whereas
+	# GNU nm marks them as "W".
+	# While the 'weak' keyword is ignored in the Export File, we need
+	# it in the Import File for the 'aix-soname' feature, so we have
+	# to replace the "-B" option with "-P" for AIX nm.
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# have runtime linking enabled, and use it for executables.
+	# For shared libraries, we enable/disable runtime linking
+	# depending on the kind of the shared library created -
+	# when "with_aix_soname,aix_use_runtimelinking" is:
+	# "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "aix,yes"  lib.so          shared, rtl:yes, for executables
+	#            lib.a           static archive
+	# "both,no"  lib.so.V(shr.o) shared, rtl:yes
+	#            lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a(lib.so.V) shared, rtl:no
+	# "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a           static archive
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	    # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	    # so we don't have lib.a shared libs to link our executables.
+	    # We have to force runtime linking in this case.
+	    aix_use_runtimelinking=yes
+	    LDFLAGS="$LDFLAGS -Wl,-brtl"
+	  fi
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='$wl-f,'
+      case $with_aix_soname,$aix_use_runtimelinking in
+      aix,*) ;; # traditional, no import file
+      svr4,* | *,yes) # use import file
+	# The Import File defines what to hardcode.
+	hardcode_direct=no
+	hardcode_direct_absolute=no
+	;;
+      esac
+
+      if test yes = "$GCC"; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test yes = "$aix_use_runtimelinking"; then
+	  shared_flag="$shared_flag "'$wl-G'
+	fi
+	# Need to ensure runtime linking is disabled for the traditional
+	# shared library, or the linker may eventually find shared libraries
+	# /with/ Import File - we do not want to mix them.
+	shared_flag_aix='-shared'
+	shared_flag_svr4='-shared $wl-G'
+      else
+	# not using gcc
+	if test ia64 = "$host_cpu"; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag='$wl-G'
+	  else
+	    shared_flag='$wl-bM:SRE'
+	  fi
+	  shared_flag_aix='$wl-bM:SRE'
+	  shared_flag_svr4='$wl-G'
+	fi
+      fi
+
+      export_dynamic_flag_spec='$wl-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if test ${lt_cv_aix_libpath_+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+        hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+      else
+	if test ia64 = "$host_cpu"; then
+	  hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if test ${lt_cv_aix_libpath_+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+	 hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' $wl-bernotok'
+	  allow_undefined_flag=' $wl-berok'
+	  if test yes = "$with_gnu_ld"; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	  # -brtl affects multiple linker settings, -berok does not and is overridden later
+	  compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+	  if test svr4 != "$with_aix_soname"; then
+	    # This is similar to how AIX traditionally builds its shared libraries.
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	  fi
+	  if test aix != "$with_aix_soname"; then
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	  else
+	    # used by -dlpreopen to get the symbols
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	  fi
+	  archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++ or Intel C++ Compiler.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl* | icl*)
+	# Native MSVC or ICC
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	always_export_symbols=yes
+	file_list_spec='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+            cp "$export_symbols" "$output_objdir/$soname.def";
+            echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+          else
+            $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+          fi~
+          $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+          linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+	enable_shared_with_static_runtimes=yes
+	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	old_postinstall_cmds='chmod 644 $oldlib'
+	postlink_cmds='lt_outputfile="@OUTPUT@"~
+          lt_tool_outputfile="@TOOL_OUTPUT@"~
+          case $lt_outputfile in
+            *.exe|*.EXE) ;;
+            *)
+              lt_outputfile=$lt_outputfile.exe
+              lt_tool_outputfile=$lt_tool_outputfile.exe
+              ;;
+          esac~
+          if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+            $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+            $RM "$lt_outputfile.manifest";
+          fi'
+	;;
+      *)
+	# Assume MSVC and ICC wrapper
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	old_archive_from_new_cmds='true'
+	# FIXME: Should let the user specify the lib program.
+	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	enable_shared_with_static_runtimes=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    archive_expsym_cmds="$SED 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    module_expsym_cmds="$SED -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly* | midnightbsd*)
+      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test yes = "$GCC"; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='$wl-E'
+      ;;
+
+    hpux10*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='$wl-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+printf %s "checking if $CC understands -b... " >&6; }
+if test ${lt_cv_prog_compiler__b+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+printf "%s\n" "$lt_cv_prog_compiler__b" >&6; }
+
+if test yes = "$lt_cv_prog_compiler__b"; then
+    archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='$wl-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+printf %s "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if test ${lt_cv_irix_exported_symbol+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  save_LDFLAGS=$LDFLAGS
+	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  lt_cv_irix_exported_symbol=yes
+else $as_nop
+  lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+           LDFLAGS=$save_LDFLAGS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+printf "%s\n" "$lt_cv_irix_exported_symbol" >&6; }
+	if test yes = "$lt_cv_irix_exported_symbol"; then
+          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+	fi
+	link_all_deplibs=no
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    linux*)
+      case $cc_basename in
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	ld_shlibs=yes
+	archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	;;
+      esac
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd* | bitrig*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	  export_dynamic_flag_spec='$wl-E'
+	else
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      file_list_spec='@'
+      ;;
+
+    osf3*)
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+          $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test yes = "$GCC"; then
+	wlarc='$wl'
+	archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+          $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='$wl'
+	  archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands '-z linker_flag'.  GCC discards it without '$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test yes = "$GCC"; then
+	  whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test sequent = "$host_vendor"; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='$wl-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We CANNOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='$wl-z,text'
+      allow_undefined_flag='$wl-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='$wl-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test sni = "$host_vendor"; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='$wl-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+printf "%s\n" "$ld_shlibs" >&6; }
+test no = "$ld_shlibs" && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+printf %s "checking whether -lc should be explicitly linked in... " >&6; }
+if test ${lt_cv_archive_cmds_need_lc+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+printf "%s\n" "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
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+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+printf %s "checking dynamic linker characteristics... " >&6; }
+
+if test yes = "$GCC"; then
+  case $host_os in
+    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+    *) lt_awk_arg='/^libraries:/' ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
+    *) lt_sed_strip_eq='s|=/|/|g' ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary...
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path component already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+  lt_foo = "";
+  lt_count = 0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo = "/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib.so
+      # instead of lib.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a(lib.so.V)'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | $SED -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | $SED -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl* | *,icl*)
+    # Native MSVC or ICC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC and ICC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly* | midnightbsd*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  hardcode_libdir_flag_spec='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if test ${lt_cv_shlibpath_overrides_runpath+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null
+then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsdelf*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='NetBSD ld.elf_so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+printf "%s\n" "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+printf %s "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test yes = "$hardcode_automatic"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$hardcode_direct" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
+     test no != "$hardcode_minus_L"; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+printf "%s\n" "$hardcode_action" >&6; }
+
+if test relink = "$hardcode_action" ||
+   test yes = "$inherit_rpath"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+  if test yes != "$enable_dlopen"; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen=load_add_on
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen=LoadLibrary
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+    # if libdl is installed we need to link against it
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+printf %s "checking for dlopen in -ldl... " >&6; }
+if test ${ac_cv_lib_dl_dlopen+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int main (void)
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_dl_dlopen=yes
+else $as_nop
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes
+then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else $as_nop
+
+    lt_cv_dlopen=dyld
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+    ;;
+
+  tpf*)
+    # Don't try to run any link tests for TPF.  We know it's impossible
+    # because TPF is a cross-compiler, and we know how we open DSOs.
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=no
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes
+then :
+  lt_cv_dlopen=shl_load
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+printf %s "checking for shl_load in -ldld... " >&6; }
+if test ${ac_cv_lib_dld_shl_load+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int main (void)
+{
+return shl_load ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_dld_shl_load=yes
+else $as_nop
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+printf "%s\n" "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes
+then :
+  lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
+else $as_nop
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes
+then :
+  lt_cv_dlopen=dlopen
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+printf %s "checking for dlopen in -ldl... " >&6; }
+if test ${ac_cv_lib_dl_dlopen+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int main (void)
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_dl_dlopen=yes
+else $as_nop
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes
+then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+printf %s "checking for dlopen in -lsvld... " >&6; }
+if test ${ac_cv_lib_svld_dlopen+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int main (void)
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_svld_dlopen=yes
+else $as_nop
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+printf "%s\n" "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes
+then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+printf %s "checking for dld_link in -ldld... " >&6; }
+if test ${ac_cv_lib_dld_dld_link+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int main (void)
+{
+return dld_link ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_dld_dld_link=yes
+else $as_nop
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+printf "%s\n" "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes
+then :
+  lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test no = "$lt_cv_dlopen"; then
+    enable_dlopen=no
+  else
+    enable_dlopen=yes
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS=$CPPFLAGS
+    test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS=$LDFLAGS
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS=$LIBS
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+printf %s "checking whether a program can dlopen itself... " >&6; }
+if test ${lt_cv_dlopen_self+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include 
+#endif
+
+#include 
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+printf "%s\n" "$lt_cv_dlopen_self" >&6; }
+
+    if test yes = "$lt_cv_dlopen_self"; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+printf %s "checking whether a statically linked program can dlopen itself... " >&6; }
+if test ${lt_cv_dlopen_self_static+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include 
+#endif
+
+#include 
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+printf "%s\n" "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS=$save_CPPFLAGS
+    LDFLAGS=$save_LDFLAGS
+    LIBS=$save_LIBS
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+printf %s "checking whether stripping libraries is possible... " >&6; }
+if test -z "$STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+else
+  if $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+    old_striplib="$STRIP --strip-debug"
+    striplib="$STRIP --strip-unneeded"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  else
+    case $host_os in
+    darwin*)
+      # FIXME - insert some real tests, host_os isn't really good enough
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+    freebsd*)
+      if $STRIP -V 2>&1 | $GREP "elftoolchain" >/dev/null; then
+        old_striplib="$STRIP --strip-debug"
+        striplib="$STRIP --strip-unneeded"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      fi
+      ;;
+    *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+    esac
+  fi
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # Report what library types will actually be built
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+printf %s "checking if libtool supports shared libraries... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+printf "%s\n" "$can_build_shared" >&6; }
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+printf %s "checking whether to build shared libraries... " >&6; }
+  test no = "$can_build_shared" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test yes = "$enable_shared" && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test ia64 != "$host_cpu"; then
+      case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+      yes,aix,yes) ;;			# shared object as lib.so file only
+      yes,svr4,*) ;;			# shared object as lib.so archive member only
+      yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+      esac
+    fi
+    ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+printf "%s\n" "$enable_shared" >&6; }
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+printf %s "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test yes = "$enable_shared" || enable_static=yes
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+printf "%s\n" "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+## --------------------- ##
+##  End of libtool code  ##
+## --------------------- ##
+
+#
+# Verify if finally libtool shared libraries will be built
+#
+
+case "x$enable_shared" in # ((
+  xyes | xno)
+    xc_lt_build_shared=$enable_shared
+    ;;
+  *)
+    as_fn_error $? "unexpected libtool enable_shared value: $enable_shared" "$LINENO" 5
+    ;;
+esac
+
+#
+# Verify if finally libtool static libraries will be built
+#
+
+case "x$enable_static" in # ((
+  xyes | xno)
+    xc_lt_build_static=$enable_static
+    ;;
+  *)
+    as_fn_error $? "unexpected libtool enable_static value: $enable_static" "$LINENO" 5
+    ;;
+esac
+
+#
+# Verify if libtool shared libraries should be linked using flag -version-info
+#
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries with -version-info" >&5
+printf %s "checking whether to build shared libraries with -version-info... " >&6; }
+xc_lt_shlib_use_version_info='yes'
+if test "x$version_type" = 'xnone'; then
+  xc_lt_shlib_use_version_info='no'
+fi
+case $host_os in # (
+  amigaos*)
+    xc_lt_shlib_use_version_info='yes'
+    ;;
+esac
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_shlib_use_version_info" >&5
+printf "%s\n" "$xc_lt_shlib_use_version_info" >&6; }
+
+#
+# Verify if libtool shared libraries should be linked using flag -no-undefined
+#
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries with -no-undefined" >&5
+printf %s "checking whether to build shared libraries with -no-undefined... " >&6; }
+xc_lt_shlib_use_no_undefined='no'
+if test "x$allow_undefined" = 'xno'; then
+  xc_lt_shlib_use_no_undefined='yes'
+elif test "x$allow_undefined_flag" = 'xunsupported'; then
+  xc_lt_shlib_use_no_undefined='yes'
+fi
+case $host_os in # (
+  cygwin* | mingw* | pw32* | cegcc* | os2* | aix*)
+    xc_lt_shlib_use_no_undefined='yes'
+    ;;
+esac
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_shlib_use_no_undefined" >&5
+printf "%s\n" "$xc_lt_shlib_use_no_undefined" >&6; }
+
+#
+# Verify if libtool shared libraries should be linked using flag -mimpure-text
+#
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries with -mimpure-text" >&5
+printf %s "checking whether to build shared libraries with -mimpure-text... " >&6; }
+xc_lt_shlib_use_mimpure_text='no'
+case $host_os in # (
+  solaris2*)
+    if test "x$GCC" = 'xyes'; then
+      xc_lt_shlib_use_mimpure_text='yes'
+    fi
+    ;;
+esac
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_shlib_use_mimpure_text" >&5
+printf "%s\n" "$xc_lt_shlib_use_mimpure_text" >&6; }
+
+#
+# Find out whether libtool libraries would be built wit PIC
+#
+
+case "x$pic_mode" in # ((((
+  xdefault)
+    xc_lt_build_shared_with_pic='yes'
+    xc_lt_build_static_with_pic='no'
+    ;;
+  xyes)
+    xc_lt_build_shared_with_pic='yes'
+    xc_lt_build_static_with_pic='yes'
+    ;;
+  xno)
+    xc_lt_build_shared_with_pic='no'
+    xc_lt_build_static_with_pic='no'
+    ;;
+  *)
+    xc_lt_build_shared_with_pic='unknown'
+    xc_lt_build_static_with_pic='unknown'
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unexpected libtool pic_mode value: $pic_mode" >&5
+printf "%s\n" "$as_me: WARNING: unexpected libtool pic_mode value: $pic_mode" >&2;}
+    ;;
+esac
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries with PIC" >&5
+printf %s "checking whether to build shared libraries with PIC... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_build_shared_with_pic" >&5
+printf "%s\n" "$xc_lt_build_shared_with_pic" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries with PIC" >&5
+printf %s "checking whether to build static libraries with PIC... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_build_static_with_pic" >&5
+printf "%s\n" "$xc_lt_build_static_with_pic" >&6; }
+
+#
+# Verify if libtool shared libraries will be built while static not built
+#
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries only" >&5
+printf %s "checking whether to build shared libraries only... " >&6; }
+if test "$xc_lt_build_shared" = 'yes' &&
+  test "$xc_lt_build_static" = 'no'; then
+  xc_lt_build_shared_only='yes'
+else
+  xc_lt_build_shared_only='no'
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_build_shared_only" >&5
+printf "%s\n" "$xc_lt_build_shared_only" >&6; }
+
+#
+# Verify if libtool static libraries will be built while shared not built
+#
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries only" >&5
+printf %s "checking whether to build static libraries only... " >&6; }
+if test "$xc_lt_build_static" = 'yes' &&
+  test "$xc_lt_build_shared" = 'no'; then
+  xc_lt_build_static_only='yes'
+else
+  xc_lt_build_static_only='no'
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $xc_lt_build_static_only" >&5
+printf "%s\n" "$xc_lt_build_static_only" >&6; }
+
+
+
+
+#
+# Automake conditionals based on libtool related checks
+#
+
+ if test "x$xc_lt_shlib_use_version_info" = 'xyes'; then
+  CURL_LT_SHLIB_USE_VERSION_INFO_TRUE=
+  CURL_LT_SHLIB_USE_VERSION_INFO_FALSE='#'
+else
+  CURL_LT_SHLIB_USE_VERSION_INFO_TRUE='#'
+  CURL_LT_SHLIB_USE_VERSION_INFO_FALSE=
+fi
+
+ if test "x$xc_lt_shlib_use_no_undefined" = 'xyes'; then
+  CURL_LT_SHLIB_USE_NO_UNDEFINED_TRUE=
+  CURL_LT_SHLIB_USE_NO_UNDEFINED_FALSE='#'
+else
+  CURL_LT_SHLIB_USE_NO_UNDEFINED_TRUE='#'
+  CURL_LT_SHLIB_USE_NO_UNDEFINED_FALSE=
+fi
+
+ if test "x$xc_lt_shlib_use_mimpure_text" = 'xyes'; then
+  CURL_LT_SHLIB_USE_MIMPURE_TEXT_TRUE=
+  CURL_LT_SHLIB_USE_MIMPURE_TEXT_FALSE='#'
+else
+  CURL_LT_SHLIB_USE_MIMPURE_TEXT_TRUE='#'
+  CURL_LT_SHLIB_USE_MIMPURE_TEXT_FALSE=
+fi
+
+
+#
+# Due to libtool and automake machinery limitations of not allowing
+# specifying separate CPPFLAGS or CFLAGS when compiling objects for
+# inclusion of these in shared or static libraries, we are forced to
+# build using separate configure runs for shared and static libraries
+# on systems where different CPPFLAGS or CFLAGS are mandatory in order
+# to compile objects for each kind of library. Notice that relying on
+# the '-DPIC' CFLAG that libtool provides is not valid given that the
+# user might for example choose to build static libraries with PIC.
+#
+
+#
+# Make our Makefile.am files use the staticlib CPPFLAG only when strictly
+# targeting a static library and not building its shared counterpart.
+#
+
+ if test "x$xc_lt_build_static_only" = 'xyes'; then
+  USE_CPPFLAG_CURL_STATICLIB_TRUE=
+  USE_CPPFLAG_CURL_STATICLIB_FALSE='#'
+else
+  USE_CPPFLAG_CURL_STATICLIB_TRUE='#'
+  USE_CPPFLAG_CURL_STATICLIB_FALSE=
+fi
+
+
+#
+# Make staticlib CPPFLAG variable and its definition visible in output
+# files unconditionally, providing an empty definition unless strictly
+# targeting a static library and not building its shared counterpart.
+#
+
+CPPFLAG_CURL_STATICLIB=
+if test "x$xc_lt_build_static_only" = 'xyes'; then
+  CPPFLAG_CURL_STATICLIB='-DCURL_STATICLIB'
+fi
+
+
+
+# Determine whether all dependent libraries must be specified when linking
+if test "X$enable_shared" = "Xyes" -a "X$link_all_deplibs" = "Xno"
+then
+    REQUIRE_LIB_DEPS=no
+else
+    REQUIRE_LIB_DEPS=yes
+fi
+
+ if test x$REQUIRE_LIB_DEPS = xyes; then
+  USE_EXPLICIT_LIB_DEPS_TRUE=
+  USE_EXPLICIT_LIB_DEPS_FALSE='#'
+else
+  USE_EXPLICIT_LIB_DEPS_TRUE='#'
+  USE_EXPLICIT_LIB_DEPS_FALSE=
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
+printf %s "checking for inline... " >&6; }
+if test ${ac_cv_c_inline+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo (void) {return 0; }
+$ac_kw foo_t foo (void) {return 0; }
+#endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_c_inline=$ac_kw
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  test "$ac_cv_c_inline" != no && break
+done
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
+printf "%s\n" "$ac_cv_c_inline" >&6; }
+
+case $ac_cv_c_inline in
+  inline | yes) ;;
+  *)
+    case $ac_cv_c_inline in
+      no) ac_val=;;
+      *) ac_val=$ac_cv_c_inline;;
+    esac
+    cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
+    ;;
+esac
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if cpp -P is needed" >&5
+printf %s "checking if cpp -P is needed... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+ #include 
+TEST EINVAL TEST
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "TEST.*TEST" >/dev/null 2>&1
+then :
+  cpp=no
+else $as_nop
+  cpp=yes
+fi
+rm -rf conftest*
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cpp" >&5
+printf "%s\n" "$cpp" >&6; }
+
+    if test "x$cpp" = "xyes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if cpp -P works" >&5
+printf %s "checking if cpp -P works... " >&6; }
+    OLDCPPFLAGS=$CPPFLAGS
+    CPPFLAGS="$CPPFLAGS -P"
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+ #include 
+TEST EINVAL TEST
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "TEST.*TEST" >/dev/null 2>&1
+then :
+  cpp_p=yes
+else $as_nop
+  cpp_p=no
+fi
+rm -rf conftest*
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cpp_p" >&5
+printf "%s\n" "$cpp_p" >&6; }
+
+    if test "x$cpp_p" = "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: failed to figure out cpp -P alternative" >&5
+printf "%s\n" "$as_me: WARNING: failed to figure out cpp -P alternative" >&2;}
+      # without -P
+      CPPPFLAG=""
+    else
+      # with -P
+      CPPPFLAG="-P"
+    fi
+        CPPFLAGS=$OLDCPPFLAGS
+  else
+    # without -P
+    CPPPFLAG=""
+  fi
+
+
+  #
+  compiler_id="unknown"
+  compiler_num="0"
+  #
+  flags_dbg_yes="unknown"
+  flags_opt_all="unknown"
+  flags_opt_yes="unknown"
+  flags_opt_off="unknown"
+  #
+  flags_prefer_cppflags="no"
+  #
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is DEC/Compaq/HP C" >&5
+printf %s "checking if compiler is DEC/Compaq/HP C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __DECC
+CURL_DEF_TOKEN __DECC
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__DECC"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___DECC=no
+
+  else
+    curl_cv_have_def___DECC=yes
+    curl_cv_def___DECC=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __DECC_VER
+CURL_DEF_TOKEN __DECC_VER
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__DECC_VER"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___DECC_VER=no
+
+  else
+    curl_cv_have_def___DECC_VER=yes
+    curl_cv_def___DECC_VER=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___DECC" = "yes" &&
+    test "$curl_cv_have_def___DECC_VER" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="DEC_C"
+    flags_dbg_yes="-g2"
+    flags_opt_all="-O -O0 -O1 -O2 -O3 -O4"
+    flags_opt_yes="-O1"
+    flags_opt_off="-O0"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is HP-UX C" >&5
+printf %s "checking if compiler is HP-UX C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __HP_cc
+CURL_DEF_TOKEN __HP_cc
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__HP_cc"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___HP_cc=no
+
+  else
+    curl_cv_have_def___HP_cc=yes
+    curl_cv_def___HP_cc=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___HP_cc" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="HP_UX_C"
+    flags_dbg_yes="-g"
+    flags_opt_all="-O +O0 +O1 +O2 +O3 +O4"
+    flags_opt_yes="+O2"
+    flags_opt_off="+O0"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is IBM C" >&5
+printf %s "checking if compiler is IBM C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __IBMC__
+CURL_DEF_TOKEN __IBMC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__IBMC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___IBMC__=no
+
+  else
+    curl_cv_have_def___IBMC__=yes
+    curl_cv_def___IBMC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___IBMC__" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="IBM_C"
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -O0 -O1 -O2 -O3 -O4 -O5"
+    flags_opt_all="$flags_opt_all -qnooptimize"
+    flags_opt_all="$flags_opt_all -qoptimize=0"
+    flags_opt_all="$flags_opt_all -qoptimize=1"
+    flags_opt_all="$flags_opt_all -qoptimize=2"
+    flags_opt_all="$flags_opt_all -qoptimize=3"
+    flags_opt_all="$flags_opt_all -qoptimize=4"
+    flags_opt_all="$flags_opt_all -qoptimize=5"
+    flags_opt_yes="-O2"
+    flags_opt_off="-qnooptimize"
+    flags_prefer_cppflags="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is Intel C" >&5
+printf %s "checking if compiler is Intel C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __INTEL_COMPILER
+CURL_DEF_TOKEN __INTEL_COMPILER
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__INTEL_COMPILER"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___INTEL_COMPILER=no
+
+  else
+    curl_cv_have_def___INTEL_COMPILER=yes
+    curl_cv_def___INTEL_COMPILER=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_num="$curl_cv_def___INTEL_COMPILER"
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __unix__
+CURL_DEF_TOKEN __unix__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = ""; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___unix__=no
+
+  else
+    curl_cv_have_def___unix__=yes
+    curl_cv_def___unix__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+    if test "$curl_cv_have_def___unix__" = "yes"; then
+      compiler_id="INTEL_UNIX_C"
+      flags_dbg_yes="-g"
+      flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
+      flags_opt_yes="-O2"
+      flags_opt_off="-O0"
+    else
+      compiler_id="INTEL_WINDOWS_C"
+      flags_dbg_yes="/Zi /Oy-"
+      flags_opt_all="/O /O0 /O1 /O2 /O3 /Od /Og /Og- /Oi /Oi-"
+      flags_opt_yes="/O2"
+      flags_opt_off="/Od"
+    fi
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is clang" >&5
+printf %s "checking if compiler is clang... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __clang__
+CURL_DEF_TOKEN __clang__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__clang__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___clang__=no
+
+  else
+    curl_cv_have_def___clang__=yes
+    curl_cv_def___clang__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___clang__" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is xlclang" >&5
+printf %s "checking if compiler is xlclang... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __ibmxl__
+CURL_DEF_TOKEN __ibmxl__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__ibmxl__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___ibmxl__=no
+
+  else
+    curl_cv_have_def___ibmxl__=yes
+    curl_cv_def___ibmxl__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+    if test "$curl_cv_have_def___ibmxl__" = "yes" ; then
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      compiler_id="XLCLANG"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      compiler_id="CLANG"
+    fi
+    fullclangver=`$CC -v 2>&1 | grep version`
+    clangver=`echo $fullclangver | grep "based on LLVM " | "$SED" 's/.*(based on LLVM \([0-9]*\.[0-9]*\).*)/\1/'`
+    if test -z "$clangver"; then
+      if echo $fullclangver | grep "Apple LLVM version " >/dev/null; then
+                clangver="3.7"
+      else
+        clangver=`echo $fullclangver | "$SED" 's/.*version \([0-9]*\.[0-9]*\).*/\1/'`
+      fi
+    fi
+    clangvhi=`echo $clangver | cut -d . -f1`
+    clangvlo=`echo $clangver | cut -d . -f2`
+    compiler_num=`(expr $clangvhi "*" 100 + $clangvlo) 2>/dev/null`
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -O0 -O1 -O2 -Os -O3 -O4"
+    flags_opt_yes="-Os"
+    flags_opt_off="-O0"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is GNU C" >&5
+printf %s "checking if compiler is GNU C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __GNUC__
+CURL_DEF_TOKEN __GNUC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__GNUC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___GNUC__=no
+
+  else
+    curl_cv_have_def___GNUC__=yes
+    curl_cv_def___GNUC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___GNUC__" = "yes" &&
+    test "$compiler_id" = "unknown"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="GNU_C"
+    gccver=`$CC -dumpversion`
+    gccvhi=`echo $gccver | cut -d . -f1`
+    gccvlo=`echo $gccver | cut -d . -f2`
+    compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -O0 -O1 -O2 -O3 -Os -Og -Ofast"
+    flags_opt_yes="-O2"
+    flags_opt_off="-O0"
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef _WIN32
+CURL_DEF_TOKEN _WIN32
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "_WIN32"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def__WIN32=no
+
+  else
+    curl_cv_have_def__WIN32=yes
+    curl_cv_def__WIN32=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is LCC" >&5
+printf %s "checking if compiler is LCC... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __LCC__
+CURL_DEF_TOKEN __LCC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__LCC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___LCC__=no
+
+  else
+    curl_cv_have_def___LCC__=yes
+    curl_cv_def___LCC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___LCC__" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="LCC"
+    flags_dbg_yes="-g"
+    flags_opt_all=""
+    flags_opt_yes=""
+    flags_opt_off=""
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is SGI MIPSpro C" >&5
+printf %s "checking if compiler is SGI MIPSpro C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __GNUC__
+CURL_DEF_TOKEN __GNUC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__GNUC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___GNUC__=no
+
+  else
+    curl_cv_have_def___GNUC__=yes
+    curl_cv_def___GNUC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef _COMPILER_VERSION
+CURL_DEF_TOKEN _COMPILER_VERSION
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "_COMPILER_VERSION"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def__COMPILER_VERSION=no
+
+  else
+    curl_cv_have_def__COMPILER_VERSION=yes
+    curl_cv_def__COMPILER_VERSION=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef _SGI_COMPILER_VERSION
+CURL_DEF_TOKEN _SGI_COMPILER_VERSION
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "_SGI_COMPILER_VERSION"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def__SGI_COMPILER_VERSION=no
+
+  else
+    curl_cv_have_def__SGI_COMPILER_VERSION=yes
+    curl_cv_def__SGI_COMPILER_VERSION=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___GNUC__" = "no" &&
+    (test "$curl_cv_have_def__SGI_COMPILER_VERSION" = "yes" ||
+     test "$curl_cv_have_def__COMPILER_VERSION" = "yes"); then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="SGI_MIPSPRO_C"
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast"
+    flags_opt_yes="-O2"
+    flags_opt_off="-O0"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is SGI MIPS C" >&5
+printf %s "checking if compiler is SGI MIPS C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __GNUC__
+CURL_DEF_TOKEN __GNUC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__GNUC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___GNUC__=no
+
+  else
+    curl_cv_have_def___GNUC__=yes
+    curl_cv_def___GNUC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __sgi
+CURL_DEF_TOKEN __sgi
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__sgi"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___sgi=no
+
+  else
+    curl_cv_have_def___sgi=yes
+    curl_cv_def___sgi=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___GNUC__" = "no" &&
+    test "$curl_cv_have_def___sgi" = "yes" &&
+    test "$compiler_id" = "unknown"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="SGI_MIPS_C"
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast"
+    flags_opt_yes="-O2"
+    flags_opt_off="-O0"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is SunPro C" >&5
+printf %s "checking if compiler is SunPro C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __SUNPRO_C
+CURL_DEF_TOKEN __SUNPRO_C
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__SUNPRO_C"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___SUNPRO_C=no
+
+  else
+    curl_cv_have_def___SUNPRO_C=yes
+    curl_cv_def___SUNPRO_C=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___SUNPRO_C" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="SUNPRO_C"
+    flags_dbg_yes="-g"
+    flags_opt_all="-O -xO -xO1 -xO2 -xO3 -xO4 -xO5"
+    flags_opt_yes="-xO2"
+    flags_opt_off=""
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler is Tiny C" >&5
+printf %s "checking if compiler is Tiny C... " >&6; }
+
+    OLDCPPFLAGS=$CPPFLAGS
+  # CPPPFLAG comes from CURL_CPP_P
+  CPPFLAGS="$CPPFLAGS $CPPPFLAG"
+      if test -z "$SED"; then
+    as_fn_error $? "SED not set. Cannot continue without SED being set." "$LINENO" 5
+  fi
+  if test -z "$GREP"; then
+    as_fn_error $? "GREP not set. Cannot continue without GREP being set." "$LINENO" 5
+  fi
+
+  tmp_exp=""
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __TINYC__
+CURL_DEF_TOKEN __TINYC__
+#endif
+
+
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"
+then :
+
+    tmp_exp=`eval "$ac_cpp conftest.$ac_ext" 2>/dev/null | \
+      "$GREP" CURL_DEF_TOKEN 2>/dev/null | \
+      "$SED" 's/.*CURL_DEF_TOKEN[ ][ ]*//' 2>/dev/null | \
+      "$SED" 's/["][ ]*["]//g' 2>/dev/null`
+    if test -z "$tmp_exp" || test "$tmp_exp" = "__TINYC__"; then
+      tmp_exp=""
+    fi
+
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+  if test -z "$tmp_exp"; then
+    curl_cv_have_def___TINYC__=no
+
+  else
+    curl_cv_have_def___TINYC__=yes
+    curl_cv_def___TINYC__=$tmp_exp
+
+  fi
+      CPPFLAGS=$OLDCPPFLAGS
+
+  if test "$curl_cv_have_def___TINYC__" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    compiler_id="TINY_C"
+    flags_dbg_yes="-g"
+    flags_opt_all=""
+    flags_opt_yes=""
+    flags_opt_off=""
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+  #
+  if test "$compiler_id" = "unknown"; then
+  cat <<_EOF 1>&2
+***
+*** Warning: This configure script does not have information about the
+*** compiler you are using, relative to the flags required to enable or
+*** disable generation of debug info, optimization options or warnings.
+***
+*** Whatever settings are present in CFLAGS will be used for this run.
+***
+*** If you wish to help the curl project to better support your compiler
+*** you can report this and the required info on the libcurl development
+*** mailing list: https://lists.haxx.selistinfo/curl-library/
+***
+_EOF
+  fi
+
+
+squeeze() {
+  _sqz_result=""
+  eval _sqz_input=\$$1
+  for _sqz_token in $_sqz_input; do
+    if test -z "$_sqz_result"; then
+      _sqz_result="$_sqz_token"
+    else
+      _sqz_result="$_sqz_result $_sqz_token"
+    fi
+  done
+  eval $1=\$_sqz_result
+  return 0
+}
+
+
+      #
+  if test "$compiler_id" != "unknown"; then
+    #
+    tmp_save_CPPFLAGS="$CPPFLAGS"
+    tmp_save_CFLAGS="$CFLAGS"
+    tmp_CPPFLAGS=""
+    tmp_CFLAGS=""
+    #
+    case "$compiler_id" in
+        #
+      CLANG)
+        #
+                                tmp_CFLAGS="$tmp_CFLAGS -Qunused-arguments"
+                        tmp_CFLAGS="$tmp_CFLAGS -Wno-pointer-bool-conversion"
+        ;;
+        #
+      DEC_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS -std1"
+                tmp_CFLAGS="$tmp_CFLAGS -noansi_alias"
+                tmp_CFLAGS="$tmp_CFLAGS -warnprotos"
+                tmp_CFLAGS="$tmp_CFLAGS -msg_fatal toofewargs,toomanyargs"
+        ;;
+        #
+      GNU_C)
+        #
+                        if test "$compiler_num" -ge "295"; then
+          tmp_CFLAGS="$tmp_CFLAGS -Werror-implicit-function-declaration"
+        fi
+        ;;
+        #
+      HP_UX_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS -z"
+                                tmp_CFLAGS="$tmp_CFLAGS +W 4227,4255"
+        ;;
+        #
+      IBM_C)
+        #
+                tmp_CPPFLAGS="$tmp_CPPFLAGS -qthreaded"
+                                        tmp_CPPFLAGS="$tmp_CPPFLAGS -qnoansialias"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -qhalt=e"
+        ;;
+        #
+      INTEL_UNIX_C)
+        #
+                        tmp_CFLAGS="$tmp_CFLAGS -std=gnu89"
+                                                tmp_CPPFLAGS="$tmp_CPPFLAGS -we140,147,165,266"
+                                        tmp_CPPFLAGS="$tmp_CPPFLAGS -wd279,981,1469"
+        ;;
+        #
+      INTEL_WINDOWS_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      LCC)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS -n"
+        ;;
+        #
+      SGI_MIPS_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      SGI_MIPSPRO_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      SUNPRO_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      TINY_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+    esac
+    #
+    squeeze tmp_CPPFLAGS
+    squeeze tmp_CFLAGS
+    #
+    if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler accepts some basic options" >&5
+printf %s "checking if compiler accepts some basic options... " >&6; }
+      CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
+      CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
+      squeeze CPPFLAGS
+      squeeze CFLAGS
+
+    tmp_compiler_works="unknown"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      int i = 1;
+      return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tmp_compiler_works="yes"
+
+else $as_nop
+
+    tmp_compiler_works="no"
+    echo " " >&6
+    sed 's/^/cc-fail: /' conftest.err >&6
+    echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    if test "$tmp_compiler_works" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+        int i = 1;
+        return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      tmp_compiler_works="yes"
+
+else $as_nop
+
+      tmp_compiler_works="no"
+      echo " " >&6
+      sed 's/^/link-fail: /' conftest.err >&6
+      echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tmp_compiler_works" = "yes"; then
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+    if test "$tmp_compiler_works" = "yes"; then
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS" >&5
+printf "%s\n" "$as_me: compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS" >&6;}
+
+  else
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS" >&5
+printf "%s\n" "$as_me: WARNING: compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS" >&2;}
+                CPPFLAGS="$tmp_save_CPPFLAGS"
+        CFLAGS="$tmp_save_CFLAGS"
+
+  fi
+
+    fi
+    #
+  fi
+
+
+        #
+  if test "$compiler_id" != "unknown"; then
+    #
+    tmp_save_CFLAGS="$CFLAGS"
+    tmp_save_CPPFLAGS="$CPPFLAGS"
+    #
+    tmp_options=""
+    tmp_CFLAGS="$CFLAGS"
+    tmp_CPPFLAGS="$CPPFLAGS"
+    #
+    if test "$want_debug" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler accepts debug enabling options" >&5
+printf %s "checking if compiler accepts debug enabling options... " >&6; }
+      tmp_options="$flags_dbg_yes"
+    fi
+    #
+    if test "$flags_prefer_cppflags" = "yes"; then
+      CPPFLAGS="$tmp_CPPFLAGS $tmp_options"
+      CFLAGS="$tmp_CFLAGS"
+    else
+      CPPFLAGS="$tmp_CPPFLAGS"
+      CFLAGS="$tmp_CFLAGS $tmp_options"
+    fi
+    squeeze CPPFLAGS
+    squeeze CFLAGS
+  fi
+
+
+        #
+  if test "$compiler_id" != "unknown"; then
+    #
+    tmp_save_CFLAGS="$CFLAGS"
+    tmp_save_CPPFLAGS="$CPPFLAGS"
+    #
+    tmp_options=""
+    tmp_CFLAGS="$CFLAGS"
+    tmp_CPPFLAGS="$CPPFLAGS"
+    honor_optimize_option="yes"
+    #
+                        #
+    if test "$want_optimize" = "assume_no" ||
+       test "$want_optimize" = "assume_yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler optimizer assumed setting might be used" >&5
+printf %s "checking if compiler optimizer assumed setting might be used... " >&6; }
+
+
+  ac_var_match_word="no"
+  for word1 in $tmp_CFLAGS; do
+    for word2 in $flags_opt_all; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+  if test "$ac_var_match_word" = "yes"; then
+
+        honor_optimize_option="no"
+
+
+  fi
+
+
+
+  ac_var_match_word="no"
+  for word1 in $tmp_CPPFLAGS; do
+    for word2 in $flags_opt_all; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+  if test "$ac_var_match_word" = "yes"; then
+
+        honor_optimize_option="no"
+
+
+  fi
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $honor_optimize_option" >&5
+printf "%s\n" "$honor_optimize_option" >&6; }
+      if test "$honor_optimize_option" = "yes"; then
+        if test "$want_optimize" = "assume_yes"; then
+          want_optimize="yes"
+        fi
+        if test "$want_optimize" = "assume_no"; then
+          want_optimize="no"
+        fi
+      fi
+    fi
+    #
+    if test "$honor_optimize_option" = "yes"; then
+
+    ac_var_stripped=""
+  for word1 in $tmp_CFLAGS; do
+    ac_var_strip_word="no"
+    for word2 in $flags_opt_all; do
+      if test "$word1" = "$word2"; then
+        ac_var_strip_word="yes"
+      fi
+    done
+    if test "$ac_var_strip_word" = "no"; then
+      ac_var_stripped="$ac_var_stripped $word1"
+    fi
+  done
+    tmp_CFLAGS="$ac_var_stripped"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_stripped=""
+  for word1 in $tmp_CPPFLAGS; do
+    ac_var_strip_word="no"
+    for word2 in $flags_opt_all; do
+      if test "$word1" = "$word2"; then
+        ac_var_strip_word="yes"
+      fi
+    done
+    if test "$ac_var_strip_word" = "no"; then
+      ac_var_stripped="$ac_var_stripped $word1"
+    fi
+  done
+    tmp_CPPFLAGS="$ac_var_stripped"
+  squeeze tmp_CPPFLAGS
+
+      if test "$want_optimize" = "yes"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler accepts optimizer enabling options" >&5
+printf %s "checking if compiler accepts optimizer enabling options... " >&6; }
+        tmp_options="$flags_opt_yes"
+      fi
+      if test "$want_optimize" = "no"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler accepts optimizer disabling options" >&5
+printf %s "checking if compiler accepts optimizer disabling options... " >&6; }
+        tmp_options="$flags_opt_off"
+      fi
+      if test "$flags_prefer_cppflags" = "yes"; then
+        CPPFLAGS="$tmp_CPPFLAGS $tmp_options"
+        CFLAGS="$tmp_CFLAGS"
+      else
+        CPPFLAGS="$tmp_CPPFLAGS"
+        CFLAGS="$tmp_CFLAGS $tmp_options"
+      fi
+      squeeze CPPFLAGS
+      squeeze CFLAGS
+
+    tmp_compiler_works="unknown"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      int i = 1;
+      return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tmp_compiler_works="yes"
+
+else $as_nop
+
+    tmp_compiler_works="no"
+    echo " " >&6
+    sed 's/^/cc-fail: /' conftest.err >&6
+    echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    if test "$tmp_compiler_works" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+        int i = 1;
+        return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      tmp_compiler_works="yes"
+
+else $as_nop
+
+      tmp_compiler_works="no"
+      echo " " >&6
+      sed 's/^/link-fail: /' conftest.err >&6
+      echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tmp_compiler_works" = "yes"; then
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+    if test "$tmp_compiler_works" = "yes"; then
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: compiler options added: $tmp_options" >&5
+printf "%s\n" "$as_me: compiler options added: $tmp_options" >&6;}
+
+  else
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: compiler options rejected: $tmp_options" >&5
+printf "%s\n" "$as_me: WARNING: compiler options rejected: $tmp_options" >&2;}
+                CPPFLAGS="$tmp_save_CPPFLAGS"
+        CFLAGS="$tmp_save_CFLAGS"
+
+  fi
+
+    fi
+    #
+  fi
+
+
+        #
+  if test "$compiler_id" != "unknown"; then
+    #
+    tmp_save_CPPFLAGS="$CPPFLAGS"
+    tmp_save_CFLAGS="$CFLAGS"
+    tmp_CPPFLAGS=""
+    tmp_CFLAGS=""
+    #
+    case "$compiler_id" in
+        #
+      CLANG)
+        #
+        if test "$want_warnings" = "yes"; then
+          tmp_CFLAGS="$tmp_CFLAGS -pedantic"
+
+    ac_var_added_warnings=""
+  for warning in all extra; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in pointer-arith write-strings; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in shadow; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in inline nested-externs; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in missing-declarations; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in missing-prototypes; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long"
+
+    ac_var_added_warnings=""
+  for warning in float-equal; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in no-multichar sign-compare; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in undef; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral"
+
+    ac_var_added_warnings=""
+  for warning in endif-labels strict-prototypes; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in declaration-after-statement; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in cast-align; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
+
+    ac_var_added_warnings=""
+  for warning in shorten-64-to-32; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          #
+                    if test "$compiler_num" -ge "101"; then
+
+    ac_var_added_warnings=""
+  for warning in unused; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "208"; then
+
+    ac_var_added_warnings=""
+  for warning in vla; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "209"; then
+
+    ac_var_added_warnings=""
+  for warning in shift-sign-overflow; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "302"; then
+            case $host_os in
+            cygwin* | mingw*)
+                                          ;;
+            *)
+
+    ac_var_added_warnings=""
+  for warning in missing-variable-declarations; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+              ;;
+            esac
+          fi
+          #
+                    if test "$compiler_num" -ge "306"; then
+
+    ac_var_added_warnings=""
+  for warning in double-promotion; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "309"; then
+
+    ac_var_added_warnings=""
+  for warning in comma; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            # avoid the varargs warning, fixed in 4.0
+            # https://bugs.llvm.org/show_bug.cgi?id=29140
+            if test "$compiler_num" -lt "400"; then
+              tmp_CFLAGS="$tmp_CFLAGS -Wno-varargs"
+            fi
+          fi
+                    if test "$compiler_num" -ge "700"; then
+
+    ac_var_added_warnings=""
+  for warning in assign-enum; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in extra-semi-stmt; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+        fi
+        ;;
+        #
+      DEC_C)
+        #
+        if test "$want_warnings" = "yes"; then
+                    tmp_CFLAGS="$tmp_CFLAGS -msg_enable level3"
+        fi
+        ;;
+        #
+      GNU_C)
+        #
+        if test "$want_warnings" = "yes"; then
+          #
+                              if test "x$cross_compiling" != "xyes" ||
+            test "$compiler_num" -ge "300"; then
+            tmp_CFLAGS="$tmp_CFLAGS -pedantic"
+          fi
+          #
+
+    ac_var_added_warnings=""
+  for warning in all; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          tmp_CFLAGS="$tmp_CFLAGS -W"
+          #
+                    if test "$compiler_num" -ge "104"; then
+
+    ac_var_added_warnings=""
+  for warning in pointer-arith write-strings; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+                        if test "x$cross_compiling" != "xyes" ||
+              test "$compiler_num" -ge "300"; then
+
+    ac_var_added_warnings=""
+  for warning in unused shadow; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            fi
+          fi
+          #
+                    if test "$compiler_num" -ge "207"; then
+
+    ac_var_added_warnings=""
+  for warning in inline nested-externs; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+                        if test "x$cross_compiling" != "xyes" ||
+              test "$compiler_num" -ge "300"; then
+
+    ac_var_added_warnings=""
+  for warning in missing-declarations; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in missing-prototypes; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            fi
+          fi
+          #
+                    if test "$compiler_num" -ge "295"; then
+            tmp_CFLAGS="$tmp_CFLAGS -Wno-long-long"
+
+    ac_var_added_warnings=""
+  for warning in bad-function-cast; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "296"; then
+
+    ac_var_added_warnings=""
+  for warning in float-equal; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            tmp_CFLAGS="$tmp_CFLAGS -Wno-multichar"
+
+    ac_var_added_warnings=""
+  for warning in sign-compare; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in undef; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "297"; then
+            tmp_CFLAGS="$tmp_CFLAGS -Wno-format-nonliteral"
+          fi
+          #
+                    if test "$compiler_num" -ge "300"; then
+                                                            tmp_CFLAGS="$tmp_CFLAGS"
+          fi
+          #
+                    if test "$compiler_num" -ge "303"; then
+
+    ac_var_added_warnings=""
+  for warning in endif-labels strict-prototypes; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "304"; then
+
+    ac_var_added_warnings=""
+  for warning in declaration-after-statement; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in old-style-definition; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "400"; then
+            tmp_CFLAGS="$tmp_CFLAGS -Wstrict-aliasing=3"
+          fi
+          #
+                    if test "$compiler_num" -ge "402"; then
+
+    ac_var_added_warnings=""
+  for warning in cast-align; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "403"; then
+
+    ac_var_added_warnings=""
+  for warning in type-limits old-style-declaration; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in missing-parameter-type empty-body; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in clobbered ignored-qualifiers; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in conversion; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            tmp_CFLAGS="$tmp_CFLAGS -Wno-sign-conversion"
+
+    ac_var_added_warnings=""
+  for warning in vla; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+                        tmp_CFLAGS="$tmp_CFLAGS -ftree-vrp"
+          fi
+          #
+                    if test "$compiler_num" -ge "405"; then
+                        if test "$curl_cv_have_def__WIN32" = "yes"; then
+              tmp_CFLAGS="$tmp_CFLAGS -Wno-pedantic-ms-format"
+            fi
+          fi
+          #
+                    if test "$compiler_num" -ge "406"; then
+
+    ac_var_added_warnings=""
+  for warning in double-promotion; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "408"; then
+            tmp_CFLAGS="$tmp_CFLAGS -Wformat=2"
+          fi
+          #
+                    if test "$compiler_num" -ge "500"; then
+            tmp_CFLAGS="$tmp_CFLAGS -Warray-bounds=2"
+          fi
+          #
+                    if test "$compiler_num" -ge "600"; then
+
+    ac_var_added_warnings=""
+  for warning in shift-negative-value; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            tmp_CFLAGS="$tmp_CFLAGS -Wshift-overflow=2"
+
+    ac_var_added_warnings=""
+  for warning in null-dereference; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            tmp_CFLAGS="$tmp_CFLAGS -fdelete-null-pointer-checks"
+
+    ac_var_added_warnings=""
+  for warning in duplicated-cond; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in unused-const-variable; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+                    if test "$compiler_num" -ge "700"; then
+
+    ac_var_added_warnings=""
+  for warning in duplicated-branches; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in restrict; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in alloc-zero; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+            tmp_CFLAGS="$tmp_CFLAGS -Wformat-overflow=2"
+            tmp_CFLAGS="$tmp_CFLAGS -Wformat-truncation=2"
+            if test "$compiler_num" -lt "1200"; then
+                            tmp_CFLAGS="$tmp_CFLAGS -Wimplicit-fallthrough=4"
+            fi
+          fi
+          #
+                    if test "$compiler_num" -ge "1000"; then
+
+    ac_var_added_warnings=""
+  for warning in arith-conversion; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in enum-conversion; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+          fi
+          #
+        fi
+        #
+                if test "$compiler_num" -ge "300"; then
+          tmp_CFLAGS="$tmp_CFLAGS -Wno-system-headers"
+        else
+                              if test "x$cross_compiling" = "xyes"; then
+            if test "$compiler_num" -ge "104"; then
+                            tmp_CFLAGS="$tmp_CFLAGS -Wno-unused -Wno-shadow"
+            fi
+            if test "$compiler_num" -ge "207"; then
+                            tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-declarations"
+              tmp_CFLAGS="$tmp_CFLAGS -Wno-missing-prototypes"
+            fi
+          fi
+        fi
+        ;;
+        #
+      HP_UX_C)
+        #
+        if test "$want_warnings" = "yes"; then
+                    tmp_CFLAGS="$tmp_CFLAGS +w1"
+        fi
+        ;;
+        #
+      IBM_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      INTEL_UNIX_C)
+        #
+        if test "$want_warnings" = "yes"; then
+          if test "$compiler_num" -gt "600"; then
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wall -w2"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wcheck"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wcomment"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wdeprecated"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wmissing-prototypes"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wp64"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wpointer-arith"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wreturn-type"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wshadow"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wuninitialized"
+                        tmp_CPPFLAGS="$tmp_CPPFLAGS -Wunused-function"
+          fi
+        fi
+                tmp_CFLAGS="$tmp_CFLAGS -fno-omit-frame-pointer"
+                tmp_CFLAGS="$tmp_CFLAGS -fno-strict-aliasing"
+                tmp_CFLAGS="$tmp_CFLAGS -fp-model precise"
+        ;;
+        #
+      INTEL_WINDOWS_C)
+        #
+                tmp_CFLAGS="$tmp_CFLAGS"
+        ;;
+        #
+      LCC)
+        #
+        if test "$want_warnings" = "yes"; then
+                                                  tmp_CFLAGS="$tmp_CFLAGS"
+        fi
+        ;;
+        #
+      SGI_MIPS_C)
+        #
+        if test "$want_warnings" = "yes"; then
+                    tmp_CFLAGS="$tmp_CFLAGS -fullwarn"
+        fi
+        ;;
+        #
+      SGI_MIPSPRO_C)
+        #
+        if test "$want_warnings" = "yes"; then
+                    tmp_CFLAGS="$tmp_CFLAGS -fullwarn"
+                              tmp_CFLAGS="$tmp_CFLAGS -woff 1209"
+        fi
+        ;;
+        #
+      SUNPRO_C)
+        #
+        if test "$want_warnings" = "yes"; then
+                    tmp_CFLAGS="$tmp_CFLAGS -v"
+        fi
+        ;;
+        #
+      TINY_C)
+        #
+        if test "$want_warnings" = "yes"; then
+
+    ac_var_added_warnings=""
+  for warning in all; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in write-strings; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+
+    ac_var_added_warnings=""
+  for warning in unsupported; do
+
+  ac_var_match_word="no"
+  for word1 in $CFLAGS; do
+    for word2 in -Wno-$warning -W$warning; do
+      if test "$word1" = "$word2"; then
+        ac_var_match_word="yes"
+      fi
+    done
+  done
+
+    if test "$ac_var_match_word" = "no"; then
+      ac_var_added_warnings="$ac_var_added_warnings -W$warning"
+    fi
+  done
+    tmp_CFLAGS="$tmp_CFLAGS $ac_var_added_warnings"
+  squeeze tmp_CFLAGS
+
+        fi
+        ;;
+        #
+    esac
+    #
+    squeeze tmp_CPPFLAGS
+    squeeze tmp_CFLAGS
+    #
+    if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler accepts strict warning options" >&5
+printf %s "checking if compiler accepts strict warning options... " >&6; }
+      CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
+      CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
+      squeeze CPPFLAGS
+      squeeze CFLAGS
+
+    tmp_compiler_works="unknown"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      int i = 1;
+      return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tmp_compiler_works="yes"
+
+else $as_nop
+
+    tmp_compiler_works="no"
+    echo " " >&6
+    sed 's/^/cc-fail: /' conftest.err >&6
+    echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    if test "$tmp_compiler_works" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+        int i = 1;
+        return i;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      tmp_compiler_works="yes"
+
+else $as_nop
+
+      tmp_compiler_works="no"
+      echo " " >&6
+      sed 's/^/link-fail: /' conftest.err >&6
+      echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tmp_compiler_works" = "yes"; then
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#       ifdef __STDC__
+#         include 
+#       endif
+
+int main (void)
+{
+
+        int i = 0;
+        exit(i);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  tmp_compiler_works="yes"
+
+else $as_nop
+  tmp_compiler_works="no"
+      echo " " >&6
+      echo "run-fail: test program exited with status $ac_status" >&6
+      echo " " >&6
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+    if test "$tmp_compiler_works" = "yes"; then
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS" >&5
+printf "%s\n" "$as_me: compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS" >&6;}
+
+  else
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS" >&5
+printf "%s\n" "$as_me: WARNING: compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS" >&2;}
+                CPPFLAGS="$tmp_save_CPPFLAGS"
+        CFLAGS="$tmp_save_CFLAGS"
+
+  fi
+
+    fi
+    #
+  fi
+
+
+if test "$compiler_id" = "INTEL_UNIX_C"; then
+  #
+  if test "$compiler_num" -ge "1000"; then
+        CFLAGS="$CFLAGS -shared-intel"
+  elif test "$compiler_num" -ge "900"; then
+        CFLAGS="$CFLAGS -i-dynamic"
+  fi
+  #
+fi
+
+CURL_CFLAG_EXTRAS=""
+if test X"$want_werror" = Xyes; then
+  CURL_CFLAG_EXTRAS="-Werror"
+  if test "$compiler_id" = "GNU_C"; then
+            if test "$compiler_num" -ge "500"; then
+      CURL_CFLAG_EXTRAS="$CURL_CFLAG_EXTRAS -pedantic-errors"
+    fi
+  fi
+fi
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler halts on compilation errors" >&5
+printf %s "checking if compiler halts on compilation errors... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      force compilation error
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    as_fn_error $? "compiler does not halt on compilation errors." "$LINENO" 5
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler halts on negative sized arrays" >&5
+printf %s "checking if compiler halts on negative sized arrays... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      typedef char bad_t[sizeof(char) == sizeof(int) ? -1 : -1 ];
+
+int main (void)
+{
+
+      bad_t dummy;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    as_fn_error $? "compiler does not halt on negative sized arrays." "$LINENO" 5
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler halts on function prototype mismatch" >&5
+printf %s "checking if compiler halts on function prototype mismatch... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#     include 
+      int rand(int n);
+      int rand(int n)
+      {
+        if(n)
+          return ++n;
+        else
+          return n;
+      }
+
+int main (void)
+{
+
+      int i[2]={0,0};
+      int j = rand(i[0]);
+      if(j)
+        return j;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    as_fn_error $? "compiler does not halt on function prototype mismatch." "$LINENO" 5
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler supports hiding library internal symbols" >&5
+printf %s "checking if compiler supports hiding library internal symbols... " >&6; }
+  supports_symbol_hiding="no"
+  symbol_hiding_CFLAGS=""
+  symbol_hiding_EXTERN=""
+  tmp_CFLAGS=""
+  tmp_EXTERN=""
+  case "$compiler_id" in
+    CLANG)
+            tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))"
+      tmp_CFLAGS="-fvisibility=hidden"
+      supports_symbol_hiding="yes"
+      ;;
+    GNU_C)
+            if test "$compiler_num" -ge "304"; then
+        if $CC --help --verbose 2>/dev/null | grep fvisibility= >/dev/null ; then
+          tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))"
+          tmp_CFLAGS="-fvisibility=hidden"
+          supports_symbol_hiding="yes"
+        fi
+      fi
+      ;;
+    INTEL_UNIX_C)
+            if test "$compiler_num" -ge "900"; then
+        if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then
+          tmp_save_CFLAGS="$CFLAGS"
+          CFLAGS="$CFLAGS -fvisibility=hidden"
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#             include 
+
+int main (void)
+{
+
+              printf("icc fvisibility bug test");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+            tmp_EXTERN="__attribute__ ((__visibility__ (\"default\")))"
+            tmp_CFLAGS="-fvisibility=hidden"
+            supports_symbol_hiding="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+          CFLAGS="$tmp_save_CFLAGS"
+        fi
+      fi
+      ;;
+    SUNPRO_C)
+      if $CC 2>&1 | grep flags >/dev/null && $CC -flags | grep xldscope= >/dev/null ; then
+        tmp_EXTERN="__global"
+        tmp_CFLAGS="-xldscope=hidden"
+        supports_symbol_hiding="yes"
+      fi
+      ;;
+  esac
+  if test "$supports_symbol_hiding" = "yes"; then
+    tmp_save_CFLAGS="$CFLAGS"
+    CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
+    squeeze CFLAGS
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $tmp_EXTERN char *dummy(char *buff);
+        char *dummy(char *buff)
+        {
+         if(buff)
+           return ++buff;
+         else
+           return buff;
+        }
+
+int main (void)
+{
+
+        char b[16];
+        char *r = dummy(&b[0]);
+        if(r)
+          return (int)*r;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      supports_symbol_hiding="yes"
+      if test -f conftest.err; then
+        grep 'visibility' conftest.err >/dev/null
+        if test "$?" -eq "0"; then
+          supports_symbol_hiding="no"
+        fi
+      fi
+
+else $as_nop
+
+      supports_symbol_hiding="no"
+      echo " " >&6
+      sed 's/^/cc-src: /' conftest.$ac_ext >&6
+      sed 's/^/cc-err: /' conftest.err >&6
+      echo " " >&6
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    CFLAGS="$tmp_save_CFLAGS"
+  fi
+  if test "$supports_symbol_hiding" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    symbol_hiding_CFLAGS="$tmp_CFLAGS"
+    symbol_hiding_EXTERN="$tmp_EXTERN"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+
+      supports_curldebug="unknown"
+  if test "$want_curldebug" = "yes"; then
+    if test "x$enable_shared" != "xno" &&
+      test "x$enable_shared" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unknown enable_shared setting." >&5
+printf "%s\n" "$as_me: WARNING: unknown enable_shared setting." >&2;}
+      supports_curldebug="no"
+    fi
+    if test "x$enable_static" != "xno" &&
+      test "x$enable_static" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unknown enable_static setting." >&5
+printf "%s\n" "$as_me: WARNING: unknown enable_static setting." >&2;}
+      supports_curldebug="no"
+    fi
+    if test "$supports_curldebug" != "no"; then
+      if test "$enable_shared" = "yes" &&
+        test "x$xc_lt_shlib_use_no_undefined" = 'xyes'; then
+        supports_curldebug="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: shared library does not support undefined symbols." >&5
+printf "%s\n" "$as_me: WARNING: shared library does not support undefined symbols." >&2;}
+      fi
+    fi
+  fi
+  #
+  if test "$want_curldebug" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if curl debug memory tracking can be enabled" >&5
+printf %s "checking if curl debug memory tracking can be enabled... " >&6; }
+    test "$supports_curldebug" = "no" || supports_curldebug="yes"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $supports_curldebug" >&5
+printf "%s\n" "$supports_curldebug" >&6; }
+    if test "$supports_curldebug" = "no"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable curl debug memory tracking." >&5
+printf "%s\n" "$as_me: WARNING: cannot enable curl debug memory tracking." >&2;}
+      want_curldebug="no"
+    fi
+  fi
+
+ if test x$want_curldebug = xyes; then
+  CURLDEBUG_TRUE=
+  CURLDEBUG_FALSE='#'
+else
+  CURLDEBUG_TRUE='#'
+  CURLDEBUG_FALSE=
+fi
+
+
+supports_unittests=yes
+# cross-compilation of unit tests static library/programs fails when
+# libcurl shared library is built. This might be due to a libtool or
+# automake issue. In this case we disable unit tests.
+if test "x$cross_compiling" != "xno" &&
+   test "x$enable_shared" != "xno"; then
+  supports_unittests=no
+fi
+
+# IRIX 6.5.24 gcc 3.3 autobuilds fail unittests library compilation due to
+# a problem related with OpenSSL headers and library versions not matching.
+# Disable unit tests while time to further investigate this is found.
+case $host in
+  mips-sgi-irix6.5)
+    if test "$compiler_id" = "GNU_C"; then
+      supports_unittests=no
+    fi
+    ;;
+esac
+
+# All AIX autobuilds fails unit tests linking against unittests library
+# due to unittests library being built with no symbols or members. Libtool ?
+# Disable unit tests while time to further investigate this is found.
+case $host_os in
+  aix*)
+    supports_unittests=no
+    ;;
+esac
+
+if test "x$want_debug" = "xyes" &&
+   test "x$supports_unittests" = "xyes"; then
+  want_unittests=yes
+else
+  want_unittests=no
+fi
+ if test x$want_unittests = xyes; then
+  BUILD_UNITTESTS_TRUE=
+  BUILD_UNITTESTS_FALSE='#'
+else
+  BUILD_UNITTESTS_TRUE='#'
+  BUILD_UNITTESTS_FALSE=
+fi
+
+
+# For original MinGW (ie not MinGW-w64) define the Windows minimum supported OS
+# version to Windows XP (0x501) if it hasn't already been defined by the user.
+# Without this override original MinGW defaults the version to Windows NT 4.0.
+# Note original MinGW sets _WIN32_WINNT if not defined to whatever WINVER is.
+case $host in
+  *-*-mingw32*)
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if MinGW minimum supported OS should be set to XP" >&5
+printf %s "checking if MinGW minimum supported OS should be set to XP... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include <_mingw.h>
+
+int main (void)
+{
+
+#if defined(__MINGW64_VERSION_MAJOR) || \
+    defined(WINVER) || \
+    defined(_WIN32_WINNT)
+#error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      CPPFLAGS="$CPPFLAGS -DWINVER=0x501"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    ;;
+esac
+
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for windows.h" >&5
+printf %s "checking for windows.h... " >&6; }
+if test ${curl_cv_header_windows_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINDOWS_H shall not be defined.
+#else
+        int dummy=2*WINVER;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_windows_h="yes"
+
+else $as_nop
+
+      curl_cv_header_windows_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_windows_h" >&5
+printf "%s\n" "$curl_cv_header_windows_h" >&6; }
+  case "$curl_cv_header_windows_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINDOWS_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build target is a native Windows one" >&5
+printf %s "checking whether build target is a native Windows one... " >&6; }
+if test ${curl_cv_native_windows+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    if test "$curl_cv_header_windows_h" = "no"; then
+      curl_cv_native_windows="no"
+    else
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#if defined(__MINGW32__) || defined(__MINGW32CE__) || \
+   (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64)))
+          int dummy=1;
+#else
+          Not a native Windows build target.
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        curl_cv_native_windows="yes"
+
+else $as_nop
+
+        curl_cv_native_windows="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_native_windows" >&5
+printf "%s\n" "$curl_cv_native_windows" >&6; }
+   if test "x$curl_cv_native_windows" = xyes; then
+  DOING_NATIVE_WINDOWS_TRUE=
+  DOING_NATIVE_WINDOWS_FALSE='#'
+else
+  DOING_NATIVE_WINDOWS_TRUE='#'
+  DOING_NATIVE_WINDOWS_FALSE=
+fi
+
+
+case X-"$curl_cv_native_windows" in
+  X-yes)
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for winsock2.h" >&5
+printf %s "checking for winsock2.h... " >&6; }
+if test ${curl_cv_header_winsock2_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WINSOCK2_H shall not be defined.
+#else
+        int dummy=2*IPPROTO_ESP;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_winsock2_h="yes"
+
+else $as_nop
+
+      curl_cv_header_winsock2_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_winsock2_h" >&5
+printf "%s\n" "$curl_cv_header_winsock2_h" >&6; }
+  case "$curl_cv_header_winsock2_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINSOCK2_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ws2tcpip.h" >&5
+printf %s "checking for ws2tcpip.h... " >&6; }
+if test ${curl_cv_header_ws2tcpip_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WS2TCPIP_H shall not be defined.
+#else
+        int dummy=2*IP_PKTINFO;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_ws2tcpip_h="yes"
+
+else $as_nop
+
+      curl_cv_header_ws2tcpip_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_ws2tcpip_h" >&5
+printf "%s\n" "$curl_cv_header_ws2tcpip_h" >&6; }
+  case "$curl_cv_header_ws2tcpip_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WS2TCPIP_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for wincrypt.h" >&5
+printf %s "checking for wincrypt.h... " >&6; }
+if test ${curl_cv_header_wincrypt_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+        int dummy=2*PROV_RSA_FULL;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_wincrypt_h="yes"
+
+else $as_nop
+
+      curl_cv_header_wincrypt_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_wincrypt_h" >&5
+printf "%s\n" "$curl_cv_header_wincrypt_h" >&6; }
+  case "$curl_cv_header_wincrypt_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINCRYPT_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for winldap.h" >&5
+printf %s "checking for winldap.h... " >&6; }
+if test ${curl_cv_header_winldap_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINLDAP_H shall not be defined.
+#else
+        LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+        ULONG res = ldap_unbind(ldp);
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_winldap_h="yes"
+
+else $as_nop
+
+      curl_cv_header_winldap_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_winldap_h" >&5
+printf "%s\n" "$curl_cv_header_winldap_h" >&6; }
+  case "$curl_cv_header_winldap_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINLDAP_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for winber.h" >&5
+printf %s "checking for winber.h... " >&6; }
+if test ${curl_cv_header_winber_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINBER_H shall not be defined.
+#else
+        BERVAL *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_winber_h="yes"
+
+else $as_nop
+
+      curl_cv_header_winber_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_winber_h" >&5
+printf "%s\n" "$curl_cv_header_winber_h" >&6; }
+  case "$curl_cv_header_winber_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINBER_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+    ;;
+  *)
+    curl_cv_header_winsock2_h="no"
+    curl_cv_header_ws2tcpip_h="no"
+    curl_cv_header_wincrypt_h="no"
+    curl_cv_header_winldap_h="no"
+    curl_cv_header_winber_h="no"
+    ;;
+esac
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build target supports WIN32 file API" >&5
+printf %s "checking whether build target supports WIN32 file API... " >&6; }
+  curl_win32_file_api="no"
+  if test "$curl_cv_header_windows_h" = "yes"; then
+    if test x"$enable_largefile" != "xno"; then
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#if !defined(_WIN32_WCE) && \
+    (defined(__MINGW32__) || \
+    (defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))))
+          int dummy=1;
+#else
+          WIN32 large file API not supported.
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        curl_win32_file_api="win32_large_files"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    if test "$curl_win32_file_api" = "no"; then
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#if defined(_WIN32_WCE) || defined(__MINGW32__) || defined(_MSC_VER)
+          int dummy=1;
+#else
+          WIN32 small file API not supported.
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        curl_win32_file_api="win32_small_files"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+  fi
+  case "$curl_win32_file_api" in
+    win32_large_files)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes (large file enabled)" >&5
+printf "%s\n" "yes (large file enabled)" >&6; }
+
+printf "%s\n" "#define USE_WIN32_LARGE_FILES 1" >>confdefs.h
+
+      USE_WIN32_LARGE_FILES=1
+
+      ;;
+    win32_small_files)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes (large file disabled)" >&5
+printf "%s\n" "yes (large file disabled)" >&6; }
+
+printf "%s\n" "#define USE_WIN32_SMALL_FILES 1" >>confdefs.h
+
+      USE_WIN32_SMALL_FILES=1
+
+      ;;
+    *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build target supports WIN32 crypto API" >&5
+printf %s "checking whether build target supports WIN32 crypto API... " >&6; }
+  curl_win32_crypto_api="no"
+  if test "$curl_cv_header_wincrypt_h" = "yes"; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+        HCRYPTPROV hCryptProv;
+        if(CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL,
+                               CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
+          CryptReleaseContext(hCryptProv, 0);
+        }
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_win32_crypto_api="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  case "$curl_win32_crypto_api" in
+    yes)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_WIN32_CRYPTO 1" >>confdefs.h
+
+      USE_WIN32_CRYPTO=1
+
+      ;;
+    *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      ;;
+  esac
+
+
+
+
+  tst_cflags="no"
+  case $host_os in
+    darwin*)
+      tst_cflags="yes"
+      ;;
+  esac
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for good-to-use Darwin CFLAGS" >&5
+printf %s "checking for good-to-use Darwin CFLAGS... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_cflags" >&5
+printf "%s\n" "$tst_cflags" >&6; };
+
+  if test "$tst_cflags" = "yes"; then
+    old_CFLAGS=$CFLAGS
+    CFLAGS="$CFLAGS -Werror=partial-availability"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -Werror=partial-availability" >&5
+printf %s "checking whether $CC accepts -Werror=partial-availability... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      CFLAGS=$old_CFLAGS
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to link macOS CoreFoundation and SystemConfiguration framework" >&5
+printf %s "checking whether to link macOS CoreFoundation and SystemConfiguration framework... " >&6; }
+case $host_os in
+  darwin*)
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+#if (TARGET_OS_OSX)
+      return 0;
+#else
+#error Not a macOS
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      build_for_macos="yes"
+
+else $as_nop
+
+      build_for_macos="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    if test "x$build_for_macos" != xno; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      LDFLAGS="$LDFLAGS -framework CoreFoundation -framework SystemConfiguration"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+    ;;
+  *)
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+esac
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking to see if the compiler supports __builtin_available()" >&5
+printf %s "checking to see if the compiler supports __builtin_available()... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+      if (__builtin_available(macOS 10.8, iOS 5.0, *)) {}
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_BUILTIN_AVAILABLE 1" >>confdefs.h
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support http" >&5
+printf %s "checking whether to support http... " >&6; }
+# Check whether --enable-http was given.
+if test ${enable_http+y}
+then :
+  enableval=$enable_http;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_HTTP 1" >>confdefs.h
+
+       disable_http="yes"
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: disable HTTP disables FTP over proxy and RTSP" >&5
+printf "%s\n" "$as_me: WARNING: disable HTTP disables FTP over proxy and RTSP" >&2;}
+       CURL_DISABLE_HTTP=1
+
+
+printf "%s\n" "#define CURL_DISABLE_RTSP 1" >>confdefs.h
+
+       CURL_DISABLE_RTSP=1
+
+
+printf "%s\n" "#define CURL_DISABLE_ALTSVC 1" >>confdefs.h
+
+
+printf "%s\n" "#define CURL_DISABLE_HSTS 1" >>confdefs.h
+
+       curl_h1_msg="no      (--enable-http, --with-hyper)"
+       curl_altsvc_msg="no";
+       curl_hsts_msg="no      (--enable-hsts)";
+       enable_altsvc="no"
+       hsts="no"
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support ftp" >&5
+printf %s "checking whether to support ftp... " >&6; }
+# Check whether --enable-ftp was given.
+if test ${enable_ftp+y}
+then :
+  enableval=$enable_ftp;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_FTP 1" >>confdefs.h
+
+       CURL_DISABLE_FTP=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support file" >&5
+printf %s "checking whether to support file... " >&6; }
+# Check whether --enable-file was given.
+if test ${enable_file+y}
+then :
+  enableval=$enable_file;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_FILE 1" >>confdefs.h
+
+       CURL_DISABLE_FILE=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support ldap" >&5
+printf %s "checking whether to support ldap... " >&6; }
+# Check whether --enable-ldap was given.
+if test ${enable_ldap+y}
+then :
+  enableval=$enable_ldap;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_LDAP 1" >>confdefs.h
+
+       CURL_DISABLE_LDAP=1
+
+       ;;
+  yes)
+       ldap_askedfor="yes"
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  *)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support ldaps" >&5
+printf %s "checking whether to support ldaps... " >&6; }
+# Check whether --enable-ldaps was given.
+if test ${enable_ldaps+y}
+then :
+  enableval=$enable_ldaps;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+       CURL_DISABLE_LDAPS=1
+
+       ;;
+  *)   if test "x$CURL_DISABLE_LDAP" = "x1" ; then
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: LDAP needs to be enabled to support LDAPS" >&5
+printf "%s\n" "LDAP needs to be enabled to support LDAPS" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+         CURL_DISABLE_LDAPS=1
+
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_LDAP_SSL 1" >>confdefs.h
+
+         HAVE_LDAP_SSL=1
+
+       fi
+       ;;
+  esac
+else $as_nop
+
+       if test "x$CURL_DISABLE_LDAP" = "x1" ; then
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+         CURL_DISABLE_LDAPS=1
+
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_LDAP_SSL 1" >>confdefs.h
+
+         HAVE_LDAP_SSL=1
+
+       fi
+
+fi
+
+
+
+OPT_HYPER="no"
+
+
+# Check whether --with-hyper was given.
+if test ${with_hyper+y}
+then :
+  withval=$with_hyper; OPT_HYPER=$withval
+fi
+
+case "$OPT_HYPER" in
+  no)
+        want_hyper="no"
+    ;;
+  yes)
+        want_hyper="default"
+    want_hyper_path=""
+    ;;
+  *)
+        want_hyper="yes"
+    want_hyper_path="$withval"
+    ;;
+esac
+
+if test X"$want_hyper" != Xno; then
+  if test "x$disable_http" = "xyes"; then
+    as_fn_error $? "--with-hyper is not compatible with --disable-http" "$LINENO" 5
+  fi
+
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hyper options with pkg-config" >&5
+printf %s "checking for hyper options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_hyper_path"; then
+      PKG_CONFIG_LIBDIR="$want_hyper_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists hyper >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_HYPER=`
+    if test -n "$want_hyper_path"; then
+      PKG_CONFIG_LIBDIR="$want_hyper_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l hyper`
+    CPP_HYPER=`
+    if test -n "$want_hyper_path"; then
+      PKG_CONFIG_LIBDIR="$want_hyper_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I hyper`
+    LD_HYPER=`
+    if test -n "$want_hyper_path"; then
+      PKG_CONFIG_LIBDIR="$want_hyper_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L hyper`
+  else
+        LIB_HYPER="-lhyper -ldl -lpthread -lm"
+    if test X"$want_hyper" != Xdefault; then
+      CPP_HYPER=-I"$want_hyper_path/capi/include"
+      LD_HYPER="-L$want_hyper_path/target/release -L$want_hyper_path/target/debug"
+    fi
+  fi
+  if test -n "$LIB_HYPER"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_HYPER" >&5
+printf "%s\n" "$as_me: -l is $LIB_HYPER" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_HYPER" >&5
+printf "%s\n" "$as_me: -I is $CPP_HYPER" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_HYPER" >&5
+printf "%s\n" "$as_me: -L is $LD_HYPER" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_HYPER"
+    CPPFLAGS="$CPPFLAGS $CPP_HYPER"
+    LIBS="$LIB_HYPER $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+            DIR_HYPER=`echo $LD_HYPER | $SED -e 's/^-L//' -e 's/ -L/:/g'`
+    fi
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hyper_io_new in -lhyper" >&5
+printf %s "checking for hyper_io_new in -lhyper... " >&6; }
+if test ${ac_cv_lib_hyper_hyper_io_new+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lhyper  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char hyper_io_new ();
+int main (void)
+{
+return hyper_io_new ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_hyper_hyper_io_new=yes
+else $as_nop
+  ac_cv_lib_hyper_hyper_io_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_hyper_hyper_io_new" >&5
+printf "%s\n" "$ac_cv_lib_hyper_hyper_io_new" >&6; }
+if test "x$ac_cv_lib_hyper_hyper_io_new" = xyes
+then :
+
+              for ac_header in hyper.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "hyper.h" "ac_cv_header_hyper_h" "$ac_includes_default"
+if test "x$ac_cv_header_hyper_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_HYPER_H 1" >>confdefs.h
+ experimental="$experimental Hyper"
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Hyper support is experimental" >&5
+printf "%s\n" "$as_me: Hyper support is experimental" >&6;}
+          curl_h1_msg="enabled (Hyper)"
+          curl_h2_msg=$curl_h1_msg
+          HYPER_ENABLED=1
+
+printf "%s\n" "#define USE_HYPER 1" >>confdefs.h
+
+          USE_HYPER=1
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_HYPER"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_HYPER to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_HYPER to CURL_LIBRARY_PATH" >&6;}
+fi
+
+done
+
+else $as_nop
+  for d in `echo $DIR_HYPER | sed -e 's/:/ /'`; do
+        if test -f "$d/libhyper.a"; then
+          as_fn_error $? "hyper was found in $d but was probably built with wrong flags. See docs/HYPER.md." "$LINENO" 5
+        fi
+      done
+      as_fn_error $? "--with-hyper but hyper was not found. See docs/HYPER.md." "$LINENO" 5
+
+fi
+
+  fi
+fi
+
+if test X"$want_hyper" != Xno; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Disable RTSP support with hyper" >&5
+printf "%s\n" "$as_me: Disable RTSP support with hyper" >&6;}
+
+printf "%s\n" "#define CURL_DISABLE_RTSP 1" >>confdefs.h
+
+  CURL_DISABLE_RTSP=1
+
+
+else
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support rtsp" >&5
+printf %s "checking whether to support rtsp... " >&6; }
+  # Check whether --enable-rtsp was given.
+if test ${enable_rtsp+y}
+then :
+  enableval=$enable_rtsp;  case "$enableval" in
+    no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_RTSP 1" >>confdefs.h
+
+       CURL_DISABLE_RTSP=1
+
+       ;;
+    *)
+       if test x$CURL_DISABLE_HTTP = x1 ; then
+         as_fn_error $? "HTTP support needs to be enabled in order to enable RTSP support!" "$LINENO" 5
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+         curl_rtsp_msg="enabled"
+       fi
+       ;;
+    esac
+else $as_nop
+  if test "x$CURL_DISABLE_HTTP" != "x1"; then
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+          curl_rtsp_msg="enabled"
+       else
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       fi
+
+fi
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support proxies" >&5
+printf %s "checking whether to support proxies... " >&6; }
+# Check whether --enable-proxy was given.
+if test ${enable_proxy+y}
+then :
+  enableval=$enable_proxy;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_PROXY 1" >>confdefs.h
+
+       CURL_DISABLE_PROXY=1
+
+       https_proxy="no"
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support dict" >&5
+printf %s "checking whether to support dict... " >&6; }
+# Check whether --enable-dict was given.
+if test ${enable_dict+y}
+then :
+  enableval=$enable_dict;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_DICT 1" >>confdefs.h
+
+       CURL_DISABLE_DICT=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support telnet" >&5
+printf %s "checking whether to support telnet... " >&6; }
+# Check whether --enable-telnet was given.
+if test ${enable_telnet+y}
+then :
+  enableval=$enable_telnet;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_TELNET 1" >>confdefs.h
+
+       CURL_DISABLE_TELNET=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support tftp" >&5
+printf %s "checking whether to support tftp... " >&6; }
+# Check whether --enable-tftp was given.
+if test ${enable_tftp+y}
+then :
+  enableval=$enable_tftp;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_TFTP 1" >>confdefs.h
+
+       CURL_DISABLE_TFTP=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support pop3" >&5
+printf %s "checking whether to support pop3... " >&6; }
+# Check whether --enable-pop3 was given.
+if test ${enable_pop3+y}
+then :
+  enableval=$enable_pop3;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_POP3 1" >>confdefs.h
+
+       CURL_DISABLE_POP3=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support imap" >&5
+printf %s "checking whether to support imap... " >&6; }
+# Check whether --enable-imap was given.
+if test ${enable_imap+y}
+then :
+  enableval=$enable_imap;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_IMAP 1" >>confdefs.h
+
+       CURL_DISABLE_IMAP=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support smb" >&5
+printf %s "checking whether to support smb... " >&6; }
+# Check whether --enable-smb was given.
+if test ${enable_smb+y}
+then :
+  enableval=$enable_smb;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_SMB 1" >>confdefs.h
+
+       CURL_DISABLE_SMB=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support smtp" >&5
+printf %s "checking whether to support smtp... " >&6; }
+# Check whether --enable-smtp was given.
+if test ${enable_smtp+y}
+then :
+  enableval=$enable_smtp;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_SMTP 1" >>confdefs.h
+
+       CURL_DISABLE_SMTP=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support gopher" >&5
+printf %s "checking whether to support gopher... " >&6; }
+# Check whether --enable-gopher was given.
+if test ${enable_gopher+y}
+then :
+  enableval=$enable_gopher;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_GOPHER 1" >>confdefs.h
+
+       CURL_DISABLE_GOPHER=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support mqtt" >&5
+printf %s "checking whether to support mqtt... " >&6; }
+# Check whether --enable-mqtt was given.
+if test ${enable_mqtt+y}
+then :
+  enableval=$enable_mqtt;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_MQTT 1" >>confdefs.h
+
+       CURL_DISABLE_MQTT=1
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to provide built-in manual" >&5
+printf %s "checking whether to provide built-in manual... " >&6; }
+# Check whether --enable-manual was given.
+if test ${enable_manual+y}
+then :
+  enableval=$enable_manual;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       USE_MANUAL="1"
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       USE_MANUAL="1"
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable generation of C code" >&5
+printf %s "checking whether to enable generation of C code... " >&6; }
+# Check whether --enable-libcurl_option was given.
+if test ${enable_libcurl_option+y}
+then :
+  enableval=$enable_libcurl_option;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_LIBCURL_OPTION 1" >>confdefs.h
+
+       curl_libcurl_msg="no"
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use libgcc" >&5
+printf %s "checking whether to use libgcc... " >&6; }
+# Check whether --enable-libgcc was given.
+if test ${enable_libgcc+y}
+then :
+  enableval=$enable_libgcc;  case "$enableval" in
+  yes)
+       LIBS="-lgcc $LIBS"
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if X/Open network library is required" >&5
+printf %s "checking if X/Open network library is required... " >&6; }
+  tst_lib_xnet_required="no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int main (void)
+{
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600)
+  return 0;
+#elif defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED)
+  return 0;
+#else
+  force compilation error
+#endif
+}
+
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tst_lib_xnet_required="yes"
+    LIBS="-lxnet $LIBS"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_lib_xnet_required" >&5
+printf "%s\n" "$tst_lib_xnet_required" >&6; }
+
+
+ac_fn_c_check_func "$LINENO" "gethostbyname" "ac_cv_func_gethostbyname"
+if test "x$ac_cv_func_gethostbyname" = xyes
+then :
+  HAVE_GETHOSTBYNAME="1"
+
+else $as_nop
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5
+printf %s "checking for gethostbyname in -lnsl... " >&6; }
+if test ${ac_cv_lib_nsl_gethostbyname+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnsl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int main (void)
+{
+return gethostbyname ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_nsl_gethostbyname=yes
+else $as_nop
+  ac_cv_lib_nsl_gethostbyname=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5
+printf "%s\n" "$ac_cv_lib_nsl_gethostbyname" >&6; }
+if test "x$ac_cv_lib_nsl_gethostbyname" = xyes
+then :
+  HAVE_GETHOSTBYNAME="1"
+                             LIBS="-lnsl $LIBS"
+
+fi
+
+
+fi
+
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lsocket" >&5
+printf %s "checking for gethostbyname in -lsocket... " >&6; }
+if test ${ac_cv_lib_socket_gethostbyname+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsocket  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int main (void)
+{
+return gethostbyname ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_socket_gethostbyname=yes
+else $as_nop
+  ac_cv_lib_socket_gethostbyname=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_gethostbyname" >&5
+printf "%s\n" "$ac_cv_lib_socket_gethostbyname" >&6; }
+if test "x$ac_cv_lib_socket_gethostbyname" = xyes
+then :
+  HAVE_GETHOSTBYNAME="1"
+               LIBS="-lsocket $LIBS"
+
+fi
+
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lwatt" >&5
+printf %s "checking for gethostbyname in -lwatt... " >&6; }
+if test ${ac_cv_lib_watt_gethostbyname+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lwatt  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int main (void)
+{
+return gethostbyname ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_watt_gethostbyname=yes
+else $as_nop
+  ac_cv_lib_watt_gethostbyname=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_watt_gethostbyname" >&5
+printf "%s\n" "$ac_cv_lib_watt_gethostbyname" >&6; }
+if test "x$ac_cv_lib_watt_gethostbyname" = xyes
+then :
+  HAVE_GETHOSTBYNAME="1"
+               CPPFLAGS="-I/dev/env/WATT_ROOT/inc"
+               LDFLAGS="-L/dev/env/WATT_ROOT/lib"
+               LIBS="-lwatt $LIBS"
+
+fi
+
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname with both nsl and socket libs" >&5
+printf %s "checking for gethostbyname with both nsl and socket libs... " >&6; }
+  my_ac_save_LIBS=$LIBS
+  LIBS="-lnsl -lsocket $LIBS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      gethostbyname();
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    HAVE_GETHOSTBYNAME="1"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    LIBS=$my_ac_save_LIBS
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    if test "$curl_cv_header_windows_h" = "yes"; then
+    if test "$curl_cv_header_winsock2_h" = "yes"; then
+      winsock_LIB="-lws2_32"
+    fi
+    if test ! -z "$winsock_LIB"; then
+      my_ac_save_LIBS=$LIBS
+      LIBS="$winsock_LIB $LIBS"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in $winsock_LIB" >&5
+printf %s "checking for gethostbyname in $winsock_LIB... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+
+int main (void)
+{
+
+          gethostbyname("www.dummysite.com");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        HAVE_GETHOSTBYNAME="1"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        winsock_LIB=""
+        LIBS=$my_ac_save_LIBS
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+    fi
+  fi
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname for Minix 3" >&5
+printf %s "checking for gethostbyname for Minix 3... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+/* Older Minix versions may need  here instead */
+#include 
+
+int main (void)
+{
+
+      gethostbyname("www.dummysite.com");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    HAVE_GETHOSTBYNAME="1"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname for eCos" >&5
+printf %s "checking for gethostbyname for eCos... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+#include 
+
+int main (void)
+{
+
+      gethostbyname("www.dummysite.com");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    HAVE_GETHOSTBYNAME="1"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1" -o "${with_amissl+set}" = set
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname for AmigaOS bsdsocket.library" >&5
+printf %s "checking for gethostbyname for AmigaOS bsdsocket.library... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+  #include 
+  struct Library *SocketBase = NULL;
+
+int main (void)
+{
+
+      gethostbyname("www.dummysite.com");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    HAVE_GETHOSTBYNAME="1"
+    HAVE_PROTO_BSDSOCKET_H="1"
+
+printf "%s\n" "#define HAVE_PROTO_BSDSOCKET_H 1" >>confdefs.h
+
+    HAVE_PROTO_BSDSOCKET_H=1
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnetwork" >&5
+printf %s "checking for gethostbyname in -lnetwork... " >&6; }
+if test ${ac_cv_lib_network_gethostbyname+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnetwork  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int main (void)
+{
+return gethostbyname ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_network_gethostbyname=yes
+else $as_nop
+  ac_cv_lib_network_gethostbyname=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_network_gethostbyname" >&5
+printf "%s\n" "$ac_cv_lib_network_gethostbyname" >&6; }
+if test "x$ac_cv_lib_network_gethostbyname" = xyes
+then :
+  HAVE_GETHOSTBYNAME="1"
+               LIBS="-lnetwork $LIBS"
+
+fi
+
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"; then
+  as_fn_error $? "couldn't find libraries for gethostbyname()" "$LINENO" 5
+fi
+
+
+curl_includes_winsock2="\
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#  endif
+#endif
+/* includes end */"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for windows.h" >&5
+printf %s "checking for windows.h... " >&6; }
+if test ${curl_cv_header_windows_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINDOWS_H shall not be defined.
+#else
+        int dummy=2*WINVER;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_windows_h="yes"
+
+else $as_nop
+
+      curl_cv_header_windows_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_windows_h" >&5
+printf "%s\n" "$curl_cv_header_windows_h" >&6; }
+  case "$curl_cv_header_windows_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINDOWS_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for winsock2.h" >&5
+printf %s "checking for winsock2.h... " >&6; }
+if test ${curl_cv_header_winsock2_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WINSOCK2_H shall not be defined.
+#else
+        int dummy=2*IPPROTO_ESP;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_winsock2_h="yes"
+
+else $as_nop
+
+      curl_cv_header_winsock2_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_winsock2_h" >&5
+printf "%s\n" "$curl_cv_header_winsock2_h" >&6; }
+  case "$curl_cv_header_winsock2_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINSOCK2_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+
+curl_includes_bsdsocket="\
+/* includes start */
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#  include 
+  struct Library *SocketBase = NULL;
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "proto/bsdsocket.h" "ac_cv_header_proto_bsdsocket_h" "      $curl_includes_bsdsocket
+"
+if test "x$ac_cv_header_proto_bsdsocket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_PROTO_BSDSOCKET_H 1" >>confdefs.h
+
+fi
+
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for connect in libraries" >&5
+printf %s "checking for connect in libraries... " >&6; }
+  tst_connect_save_LIBS="$LIBS"
+  tst_connect_need_LIBS="unknown"
+  for tst_lib in '' '-lsocket' ; do
+    if test "$tst_connect_need_LIBS" = "unknown"; then
+      LIBS="$tst_lib $tst_connect_save_LIBS"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_winsock2
+          $curl_includes_bsdsocket
+          #if !defined(HAVE_WINDOWS_H) && !defined(HAVE_PROTO_BSDSOCKET_H)
+            int connect(int, void*, int);
+          #endif
+
+int main (void)
+{
+
+          if(0 != connect(0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+        tst_connect_need_LIBS="$tst_lib"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+    fi
+  done
+  LIBS="$tst_connect_save_LIBS"
+  #
+  case X-"$tst_connect_need_LIBS" in
+    X-unknown)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cannot find connect" >&5
+printf "%s\n" "cannot find connect" >&6; }
+      as_fn_error $? "cannot find connect function in libraries." "$LINENO" 5
+      ;;
+    X-)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ;;
+    *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_connect_need_LIBS" >&5
+printf "%s\n" "$tst_connect_need_LIBS" >&6; }
+      LIBS="$tst_connect_need_LIBS $tst_connect_save_LIBS"
+      ;;
+  esac
+
+
+CURL_NETWORK_LIBS=$LIBS
+
+
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_time_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TIME_H 1" >>confdefs.h
+
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for monotonic clock_gettime" >&5
+printf %s "checking for monotonic clock_gettime... " >&6; }
+  #
+  if test "x$dontwant_rt" = "xno" ; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+        struct timespec ts;
+        (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      curl_func_clock_gettime="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      curl_func_clock_gettime="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+
+
+    #
+  if test "$curl_func_clock_gettime" = "yes"; then
+    #
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in libraries" >&5
+printf %s "checking for clock_gettime in libraries... " >&6; }
+    #
+    curl_cv_save_LIBS="$LIBS"
+    curl_cv_gclk_LIBS="unknown"
+    #
+    for x_xlibs in '' '-lrt' '-lposix4' ; do
+      if test "$curl_cv_gclk_LIBS" = "unknown"; then
+        if test -z "$x_xlibs"; then
+          LIBS="$curl_cv_save_LIBS"
+        else
+          LIBS="$x_xlibs $curl_cv_save_LIBS"
+        fi
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+            struct timespec ts;
+            (void)clock_gettime(CLOCK_MONOTONIC, &ts);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+          curl_cv_gclk_LIBS="$x_xlibs"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+      fi
+    done
+    #
+    LIBS="$curl_cv_save_LIBS"
+    #
+    case X-"$curl_cv_gclk_LIBS" in
+      X-unknown)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cannot find clock_gettime" >&5
+printf "%s\n" "cannot find clock_gettime" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&5
+printf "%s\n" "$as_me: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&2;}
+        curl_func_clock_gettime="no"
+        ;;
+      X-)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no additional lib required" >&5
+printf "%s\n" "no additional lib required" >&6; }
+        curl_func_clock_gettime="yes"
+        ;;
+      *)
+        if test -z "$curl_cv_save_LIBS"; then
+          LIBS="$curl_cv_gclk_LIBS"
+        else
+          LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS"
+        fi
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_gclk_LIBS" >&5
+printf "%s\n" "$curl_cv_gclk_LIBS" >&6; }
+        curl_func_clock_gettime="yes"
+        ;;
+    esac
+    #
+        if test "x$cross_compiling" != "xyes" &&
+      test "$curl_func_clock_gettime" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if monotonic clock_gettime works" >&5
+printf %s "checking if monotonic clock_gettime works... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef HAVE_STDLIB_H
+#include 
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+          struct timespec ts;
+          if (0 == clock_gettime(CLOCK_MONOTONIC, &ts))
+            exit(0);
+          else
+            exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&5
+printf "%s\n" "$as_me: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&2;}
+        curl_func_clock_gettime="no"
+        LIBS="$curl_cv_save_LIBS"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef HAVE_STDLIB_H
+#include 
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+          struct timespec ts;
+          if (0 == clock_gettime(CLOCK_MONOTONIC, &ts))
+            exit(0);
+          else
+            exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&5
+printf "%s\n" "$as_me: WARNING: HAVE_CLOCK_GETTIME_MONOTONIC will not be defined" >&2;}
+        curl_func_clock_gettime="no"
+        LIBS="$curl_cv_save_LIBS"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+    fi
+    #
+    case "$curl_func_clock_gettime" in
+      yes)
+
+printf "%s\n" "#define HAVE_CLOCK_GETTIME_MONOTONIC 1" >>confdefs.h
+
+        ;;
+    esac
+    #
+  fi
+  #
+
+
+CURL_NETWORK_AND_TIME_LIBS=$LIBS
+
+
+
+clean_CPPFLAGS=$CPPFLAGS
+clean_LDFLAGS=$LDFLAGS
+clean_LIBS=$LIBS
+ZLIB_LIBS=""
+
+# Check whether --with-zlib was given.
+if test ${with_zlib+y}
+then :
+  withval=$with_zlib; OPT_ZLIB="$withval"
+fi
+
+
+if test "$OPT_ZLIB" = "no" ; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: zlib disabled" >&5
+printf "%s\n" "$as_me: WARNING: zlib disabled" >&2;}
+else
+  if test "$OPT_ZLIB" = "yes" ; then
+    OPT_ZLIB=""
+  fi
+
+  if test -z "$OPT_ZLIB" ; then
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for zlib options with pkg-config" >&5
+printf %s "checking for zlib options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists zlib >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIBS="`$PKGCONFIG --libs-only-l zlib` $LIBS"
+      LDFLAGS="$LDFLAGS `$PKGCONFIG --libs-only-L zlib`"
+      CPPFLAGS="$CPPFLAGS `$PKGCONFIG --cflags-only-I zlib`"
+      OPT_ZLIB=""
+      HAVE_LIBZ="1"
+    fi
+
+    if test -z "$HAVE_LIBZ"; then
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inflateEnd in -lz" >&5
+printf %s "checking for inflateEnd in -lz... " >&6; }
+if test ${ac_cv_lib_z_inflateEnd+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lz  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char inflateEnd ();
+int main (void)
+{
+return inflateEnd ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_z_inflateEnd=yes
+else $as_nop
+  ac_cv_lib_z_inflateEnd=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_inflateEnd" >&5
+printf "%s\n" "$ac_cv_lib_z_inflateEnd" >&6; }
+if test "x$ac_cv_lib_z_inflateEnd" = xyes
+then :
+                     HAVE_LIBZ="1"
+                    LIBS="-lz $LIBS"
+else $as_nop
+                     OPT_ZLIB="/usr/local"
+fi
+
+    fi
+  fi
+
+    if test -n "$OPT_ZLIB"; then
+     CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include"
+     LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff"
+  fi
+
+  ac_fn_c_check_header_compile "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_zlib_h" = xyes
+then :
+
+        HAVE_ZLIB_H="1"
+        if test "$HAVE_LIBZ" != "1"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gzread in -lz" >&5
+printf %s "checking for gzread in -lz... " >&6; }
+if test ${ac_cv_lib_z_gzread+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lz  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gzread ();
+int main (void)
+{
+return gzread ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_z_gzread=yes
+else $as_nop
+  ac_cv_lib_z_gzread=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_gzread" >&5
+printf "%s\n" "$ac_cv_lib_z_gzread" >&6; }
+if test "x$ac_cv_lib_z_gzread" = xyes
+then :
+
+                                      HAVE_LIBZ="1"
+                   LIBS="-lz $LIBS"
+
+else $as_nop
+   CPPFLAGS=$clean_CPPFLAGS
+                   LDFLAGS=$clean_LDFLAGS
+fi
+
+    fi
+
+else $as_nop
+
+            CPPFLAGS=$clean_CPPFLAGS
+      LDFLAGS=$clean_LDFLAGS
+
+fi
+
+
+  if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1"
+  then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: configure found only the libz lib, not the header file!" >&5
+printf "%s\n" "$as_me: WARNING: configure found only the libz lib, not the header file!" >&2;}
+    HAVE_LIBZ=""
+    CPPFLAGS=$clean_CPPFLAGS
+    LDFLAGS=$clean_LDFLAGS
+    LIBS=$clean_LIBS
+  elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1"
+  then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: configure found only the libz header file, not the lib!" >&5
+printf "%s\n" "$as_me: WARNING: configure found only the libz header file, not the lib!" >&2;}
+    CPPFLAGS=$clean_CPPFLAGS
+    LDFLAGS=$clean_LDFLAGS
+    LIBS=$clean_LIBS
+  elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1"
+  then
+
+
+printf "%s\n" "#define HAVE_ZLIB_H 1" >>confdefs.h
+
+
+printf "%s\n" "#define HAVE_LIBZ 1" >>confdefs.h
+
+
+    ZLIB_LIBS="-lz"
+    LIBS="-lz $clean_LIBS"
+
+        AMFIXLIB="1"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: found both libz and libz.h header" >&5
+printf "%s\n" "$as_me: found both libz and libz.h header" >&6;}
+    curl_zlib_msg="enabled"
+  fi
+fi
+
+ if test x"$AMFIXLIB" = x1; then
+  HAVE_LIBZ_TRUE=
+  HAVE_LIBZ_FALSE='#'
+else
+  HAVE_LIBZ_TRUE='#'
+  HAVE_LIBZ_FALSE=
+fi
+
+
+
+
+
+OPT_BROTLI=off
+
+# Check whether --with-brotli was given.
+if test ${with_brotli+y}
+then :
+  withval=$with_brotli; OPT_BROTLI=$withval
+fi
+
+
+if test X"$OPT_BROTLI" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_BROTLI" in
+  yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libbrotlidec options with pkg-config" >&5
+printf %s "checking for libbrotlidec options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libbrotlidec >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_BROTLI=`$PKGCONFIG --libs-only-l libbrotlidec`
+      LD_BROTLI=`$PKGCONFIG --libs-only-L libbrotlidec`
+      CPP_BROTLI=`$PKGCONFIG --cflags-only-I libbrotlidec`
+      version=`$PKGCONFIG --modversion libbrotlidec`
+      DIR_BROTLI=`echo $LD_BROTLI | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+        ;;
+  *)
+        PREFIX_BROTLI=$OPT_BROTLI
+    ;;
+  esac
+
+    if test -n "$PREFIX_BROTLI"; then
+    LIB_BROTLI="-lbrotlidec"
+    LD_BROTLI=-L${PREFIX_BROTLI}/lib$libsuff
+    CPP_BROTLI=-I${PREFIX_BROTLI}/include
+    DIR_BROTLI=${PREFIX_BROTLI}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_BROTLI"
+  CPPFLAGS="$CPPFLAGS $CPP_BROTLI"
+  LIBS="$LIB_BROTLI $LIBS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for BrotliDecoderDecompress in -lbrotlidec" >&5
+printf %s "checking for BrotliDecoderDecompress in -lbrotlidec... " >&6; }
+if test ${ac_cv_lib_brotlidec_BrotliDecoderDecompress+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbrotlidec  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char BrotliDecoderDecompress ();
+int main (void)
+{
+return BrotliDecoderDecompress ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_brotlidec_BrotliDecoderDecompress=yes
+else $as_nop
+  ac_cv_lib_brotlidec_BrotliDecoderDecompress=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_brotlidec_BrotliDecoderDecompress" >&5
+printf "%s\n" "$ac_cv_lib_brotlidec_BrotliDecoderDecompress" >&6; }
+if test "x$ac_cv_lib_brotlidec_BrotliDecoderDecompress" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBBROTLIDEC 1" >>confdefs.h
+
+  LIBS="-lbrotlidec $LIBS"
+
+fi
+
+
+         for ac_header in brotli/decode.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "brotli/decode.h" "ac_cv_header_brotli_decode_h" "$ac_includes_default"
+if test "x$ac_cv_header_brotli_decode_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_BROTLI_DECODE_H 1" >>confdefs.h
+ curl_brotli_msg="enabled (libbrotlidec)"
+    HAVE_BROTLI=1
+
+printf "%s\n" "#define HAVE_BROTLI 1" >>confdefs.h
+
+    HAVE_BROTLI=1
+
+
+fi
+
+done
+
+  if test X"$OPT_BROTLI" != Xoff &&
+     test "$HAVE_BROTLI" != "1"; then
+    as_fn_error $? "BROTLI libs and/or directories were not found where specified!" "$LINENO" 5
+  fi
+
+  if test "$HAVE_BROTLI" = "1"; then
+    if test -n "$DIR_BROTLI"; then
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_BROTLI"
+         export CURL_LIBRARY_PATH
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_BROTLI to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_BROTLI to CURL_LIBRARY_PATH" >&6;}
+       fi
+    fi
+  else
+        LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+fi
+
+
+OPT_ZSTD=off
+
+# Check whether --with-zstd was given.
+if test ${with_zstd+y}
+then :
+  withval=$with_zstd; OPT_ZSTD=$withval
+fi
+
+
+if test X"$OPT_ZSTD" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_ZSTD" in
+  yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libzstd options with pkg-config" >&5
+printf %s "checking for libzstd options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libzstd >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_ZSTD=`$PKGCONFIG --libs-only-l libzstd`
+      LD_ZSTD=`$PKGCONFIG --libs-only-L libzstd`
+      CPP_ZSTD=`$PKGCONFIG --cflags-only-I libzstd`
+      version=`$PKGCONFIG --modversion libzstd`
+      DIR_ZSTD=`echo $LD_ZSTD | $SED -e 's/-L//'`
+    fi
+
+    ;;
+  off)
+        ;;
+  *)
+        PREFIX_ZSTD=$OPT_ZSTD
+    ;;
+  esac
+
+    if test -n "$PREFIX_ZSTD"; then
+    LIB_ZSTD="-lzstd"
+    LD_ZSTD=-L${PREFIX_ZSTD}/lib$libsuff
+    CPP_ZSTD=-I${PREFIX_ZSTD}/include
+    DIR_ZSTD=${PREFIX_ZSTD}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_ZSTD"
+  CPPFLAGS="$CPPFLAGS $CPP_ZSTD"
+  LIBS="$LIB_ZSTD $LIBS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ZSTD_createDStream in -lzstd" >&5
+printf %s "checking for ZSTD_createDStream in -lzstd... " >&6; }
+if test ${ac_cv_lib_zstd_ZSTD_createDStream+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lzstd  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ZSTD_createDStream ();
+int main (void)
+{
+return ZSTD_createDStream ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_zstd_ZSTD_createDStream=yes
+else $as_nop
+  ac_cv_lib_zstd_ZSTD_createDStream=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_zstd_ZSTD_createDStream" >&5
+printf "%s\n" "$ac_cv_lib_zstd_ZSTD_createDStream" >&6; }
+if test "x$ac_cv_lib_zstd_ZSTD_createDStream" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBZSTD 1" >>confdefs.h
+
+  LIBS="-lzstd $LIBS"
+
+fi
+
+
+         for ac_header in zstd.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "zstd.h" "ac_cv_header_zstd_h" "$ac_includes_default"
+if test "x$ac_cv_header_zstd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ZSTD_H 1" >>confdefs.h
+ curl_zstd_msg="enabled (libzstd)"
+    HAVE_ZSTD=1
+
+printf "%s\n" "#define HAVE_ZSTD 1" >>confdefs.h
+
+    HAVE_ZSTD=1
+
+
+fi
+
+done
+
+  if test X"$OPT_ZSTD" != Xoff &&
+     test "$HAVE_ZSTD" != "1"; then
+    as_fn_error $? "libzstd was not found where specified!" "$LINENO" 5
+  fi
+
+  if test "$HAVE_ZSTD" = "1"; then
+    if test -n "$DIR_ZSTD"; then
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_ZSTD"
+         export CURL_LIBRARY_PATH
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_ZSTD to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_ZSTD to CURL_LIBRARY_PATH" >&6;}
+       fi
+    fi
+  else
+        LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+fi
+
+
+LDAPLIBNAME=""
+
+# Check whether --with-ldap-lib was given.
+if test ${with_ldap_lib+y}
+then :
+  withval=$with_ldap_lib; LDAPLIBNAME="$withval"
+fi
+
+
+LBERLIBNAME=""
+
+# Check whether --with-lber-lib was given.
+if test ${with_lber_lib+y}
+then :
+  withval=$with_lber_lib; LBERLIBNAME="$withval"
+fi
+
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for lber.h" >&5
+printf %s "checking for lber.h... " >&6; }
+if test ${curl_cv_header_lber_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#include 
+
+int main (void)
+{
+
+        BerValue *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_lber_h="yes"
+
+else $as_nop
+
+      curl_cv_header_lber_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_lber_h" >&5
+printf "%s\n" "$curl_cv_header_lber_h" >&6; }
+  if test "$curl_cv_header_lber_h" = "yes"; then
+
+printf "%s\n" "#define HAVE_LBER_H 1" >>confdefs.h
+
+    #
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#include 
+
+int main (void)
+{
+
+        BerValue *bvp = NULL;
+        BerElement *bep = ber_init(bvp);
+        ber_free(bep, 1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_need_header_lber_h="no"
+
+else $as_nop
+
+      curl_cv_need_header_lber_h="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    #
+    case "$curl_cv_need_header_lber_h" in
+      yes)
+
+printf "%s\n" "#define NEED_LBER_H 1" >>confdefs.h
+
+        ;;
+    esac
+  fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ldap.h" >&5
+printf %s "checking for ldap.h... " >&6; }
+if test ${curl_cv_header_ldap_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+        LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+        int res = ldap_unbind(ldp);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_ldap_h="yes"
+
+else $as_nop
+
+      curl_cv_header_ldap_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_ldap_h" >&5
+printf "%s\n" "$curl_cv_header_ldap_h" >&6; }
+  case "$curl_cv_header_ldap_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_LDAP_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ldapssl.h" >&5
+printf %s "checking for ldapssl.h... " >&6; }
+if test ${curl_cv_header_ldapssl_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+        char *cert_label = NULL;
+        LDAP *ldp = ldap_ssl_init("dummy", LDAPS_PORT, cert_label);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_ldapssl_h="yes"
+
+else $as_nop
+
+      curl_cv_header_ldapssl_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_ldapssl_h" >&5
+printf "%s\n" "$curl_cv_header_ldapssl_h" >&6; }
+  case "$curl_cv_header_ldapssl_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_LDAPSSL_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ldap_ssl.h" >&5
+printf %s "checking for ldap_ssl.h... " >&6; }
+if test ${curl_cv_header_ldap_ssl_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+#include 
+
+int main (void)
+{
+
+        LDAP *ldp = ldapssl_init("dummy", LDAPS_PORT, 1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_ldap_ssl_h="yes"
+
+else $as_nop
+
+      curl_cv_header_ldap_ssl_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_ldap_ssl_h" >&5
+printf "%s\n" "$curl_cv_header_ldap_ssl_h" >&6; }
+  case "$curl_cv_header_ldap_ssl_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_LDAP_SSL_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+  if test -z "$LDAPLIBNAME" ; then
+    if test "$curl_cv_native_windows" = "yes"; then
+            LDAPLIBNAME="wldap32"
+      LBERLIBNAME="no"
+    fi
+  fi
+
+  if test "$LDAPLIBNAME" ; then
+    as_ac_Lib=`printf "%s\n" "ac_cv_lib_"$LDAPLIBNAME"""_ldap_init" | $as_tr_sh`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ldap_init in -l\"$LDAPLIBNAME\"" >&5
+printf %s "checking for ldap_init in -l\"$LDAPLIBNAME\"... " >&6; }
+if eval test \${$as_ac_Lib+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-l"$LDAPLIBNAME"  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ldap_init ();
+int main (void)
+{
+return ldap_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  eval "$as_ac_Lib=yes"
+else $as_nop
+  eval "$as_ac_Lib=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+eval ac_res=\$$as_ac_Lib
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_Lib"\" = x"yes"
+then :
+  cat >>confdefs.h <<_ACEOF
+#define `printf "%s\n" "HAVE_LIB"$LDAPLIBNAME"" | $as_tr_cpp` 1
+_ACEOF
+
+  LIBS="-l"$LDAPLIBNAME" $LIBS"
+
+else $as_nop
+
+      if test -n "$ldap_askedfor"; then
+        as_fn_error $? "couldn't detect the LDAP libraries" "$LINENO" 5
+      fi
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: \"$LDAPLIBNAME\" is not an LDAP library: LDAP disabled" >&5
+printf "%s\n" "$as_me: WARNING: \"$LDAPLIBNAME\" is not an LDAP library: LDAP disabled" >&2;}
+
+printf "%s\n" "#define CURL_DISABLE_LDAP 1" >>confdefs.h
+
+      CURL_DISABLE_LDAP=1
+
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+      CURL_DISABLE_LDAPS=1
+
+fi
+
+  else
+
+    #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for LDAP libraries" >&5
+printf %s "checking for LDAP libraries... " >&6; }
+  #
+  u_libs=""
+  #
+
+  #
+  curl_cv_save_LIBS="$LIBS"
+  curl_cv_ldap_LIBS="unknown"
+  #
+  for x_nlibs in '' "$u_libs" \
+    '-lldap' \
+    '-lldap -llber' \
+    '-llber -lldap' \
+    '-lldapssl -lldapx -lldapsdk' \
+    '-lldapsdk -lldapx -lldapssl' \
+    '-lldap -llber -lssl -lcrypto' ; do
+
+    if test "$curl_cv_ldap_LIBS" = "unknown"; then
+      if test -z "$x_nlibs"; then
+        LIBS="$curl_cv_save_LIBS"
+      else
+        LIBS="$x_nlibs $curl_cv_save_LIBS"
+      fi
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#endif
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#ifndef LDAP_DEPRECATED
+#define LDAP_DEPRECATED 1
+#endif
+#ifdef NEED_LBER_H
+#include 
+#endif
+#ifdef HAVE_LDAP_H
+#include 
+#endif
+
+int main (void)
+{
+
+          BerValue *bvp = NULL;
+          BerElement *bep = ber_init(bvp);
+          LDAP *ldp = ldap_init("dummy", LDAP_PORT);
+          int res = ldap_unbind(ldp);
+          ber_free(bep, 1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+        curl_cv_ldap_LIBS="$x_nlibs"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+    fi
+  done
+  #
+  LIBS="$curl_cv_save_LIBS"
+  #
+  case X-"$curl_cv_ldap_LIBS" in
+    X-unknown)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: cannot find LDAP libraries" >&5
+printf "%s\n" "cannot find LDAP libraries" >&6; }
+      ;;
+    X-)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no additional lib required" >&5
+printf "%s\n" "no additional lib required" >&6; }
+      ;;
+    *)
+      if test -z "$curl_cv_save_LIBS"; then
+        LIBS="$curl_cv_ldap_LIBS"
+      else
+        LIBS="$curl_cv_ldap_LIBS $curl_cv_save_LIBS"
+      fi
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_ldap_LIBS" >&5
+printf "%s\n" "$curl_cv_ldap_LIBS" >&6; }
+      ;;
+  esac
+  #
+
+    case X-"$curl_cv_ldap_LIBS" in
+      X-unknown)
+        if test -n "$ldap_askedfor"; then
+          as_fn_error $? "couldn't detect the LDAP libraries" "$LINENO" 5
+        fi
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find libraries for LDAP support: LDAP disabled" >&5
+printf "%s\n" "$as_me: WARNING: Cannot find libraries for LDAP support: LDAP disabled" >&2;}
+
+printf "%s\n" "#define CURL_DISABLE_LDAP 1" >>confdefs.h
+
+        CURL_DISABLE_LDAP=1
+
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+        CURL_DISABLE_LDAPS=1
+
+        ;;
+    esac
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+
+  if test "$LBERLIBNAME" ; then
+            if test "$LBERLIBNAME" != "no" ; then
+      as_ac_Lib=`printf "%s\n" "ac_cv_lib_"$LBERLIBNAME"""_ber_free" | $as_tr_sh`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ber_free in -l\"$LBERLIBNAME\"" >&5
+printf %s "checking for ber_free in -l\"$LBERLIBNAME\"... " >&6; }
+if eval test \${$as_ac_Lib+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-l"$LBERLIBNAME"  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ber_free ();
+int main (void)
+{
+return ber_free ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  eval "$as_ac_Lib=yes"
+else $as_nop
+  eval "$as_ac_Lib=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+eval ac_res=\$$as_ac_Lib
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_Lib"\" = x"yes"
+then :
+  cat >>confdefs.h <<_ACEOF
+#define `printf "%s\n" "HAVE_LIB"$LBERLIBNAME"" | $as_tr_cpp` 1
+_ACEOF
+
+  LIBS="-l"$LBERLIBNAME" $LIBS"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: \"$LBERLIBNAME\" is not an LBER library: LDAP disabled" >&5
+printf "%s\n" "$as_me: WARNING: \"$LBERLIBNAME\" is not an LBER library: LDAP disabled" >&2;}
+
+printf "%s\n" "#define CURL_DISABLE_LDAP 1" >>confdefs.h
+
+        CURL_DISABLE_LDAP=1
+
+
+printf "%s\n" "#define CURL_DISABLE_LDAPS 1" >>confdefs.h
+
+        CURL_DISABLE_LDAPS=1
+
+fi
+
+    fi
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+  ac_fn_c_check_func "$LINENO" "ldap_url_parse" "ac_cv_func_ldap_url_parse"
+if test "x$ac_cv_func_ldap_url_parse" = xyes
+then :
+  printf "%s\n" "#define HAVE_LDAP_URL_PARSE 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "ldap_init_fd" "ac_cv_func_ldap_init_fd"
+if test "x$ac_cv_func_ldap_init_fd" = xyes
+then :
+  printf "%s\n" "#define HAVE_LDAP_INIT_FD 1" >>confdefs.h
+
+fi
+
+
+  if test "$LDAPLIBNAME" = "wldap32"; then
+    curl_ldap_msg="enabled (winldap)"
+
+printf "%s\n" "#define USE_WIN32_LDAP 1" >>confdefs.h
+
+  else
+    curl_ldap_msg="enabled (OpenLDAP)"
+    if test "x$ac_cv_func_ldap_init_fd" = "xyes"; then
+
+printf "%s\n" "#define USE_OPENLDAP 1" >>confdefs.h
+
+      USE_OPENLDAP=1
+
+    fi
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAPS != x1 ; then
+    curl_ldaps_msg="enabled"
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable IPv6" >&5
+printf %s "checking whether to enable IPv6... " >&6; }
+# Check whether --enable-ipv6 was given.
+if test ${enable_ipv6+y}
+then :
+  enableval=$enable_ipv6;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       ipv6=no
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ipv6=yes
+       ;;
+  esac
+else $as_nop
+  if test "$cross_compiling" = yes
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  ipv6=yes
+
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* are AF_INET6 and sockaddr_in6 available? */
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#include 
+#else
+#include 
+#include 
+#if defined (__TANDEM)
+# include 
+#endif
+#endif
+#include  /* for exit() */
+main()
+{
+ struct sockaddr_in6 s;
+ (void)s;
+ if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+   exit(1);
+ else
+   exit(0);
+}
+
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  ipv6=yes
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  ipv6=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+
+
+if test "$ipv6" = yes; then
+  curl_ipv6_msg="enabled"
+
+printf "%s\n" "#define ENABLE_IPV6 1" >>confdefs.h
+
+  IPV6_ENABLED=1
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if struct sockaddr_in6 has sin6_scope_id member" >&5
+printf %s "checking if struct sockaddr_in6 has sin6_scope_id member... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#include 
+#else
+#include 
+#if defined (__TANDEM)
+# include 
+#endif
+#endif
+
+int main (void)
+{
+
+  struct sockaddr_in6 s;
+  s.sin6_scope_id = 0;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1" >>confdefs.h
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if argv can be written to" >&5
+printf %s "checking if argv can be written to... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  curl_cv_writable_argv=cross
+
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main(int argc, char **argv)
+{
+  (void)argc;
+  argv[0][0] = ' ';
+  return (argv[0][0] == ' ')?0:1;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  curl_cv_writable_argv=yes
+
+else $as_nop
+  curl_cv_writable_argv=no
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  curl_cv_writable_argv=cross
+
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main(int argc, char **argv)
+{
+  (void)argc;
+  argv[0][0] = ' ';
+  return (argv[0][0] == ' ')?0:1;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  curl_cv_writable_argv=yes
+
+else $as_nop
+  curl_cv_writable_argv=no
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+case $curl_cv_writable_argv in
+yes)
+
+printf "%s\n" "#define HAVE_WRITABLE_ARGV 1" >>confdefs.h
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        ;;
+no)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        ;;
+*)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: the previous check could not be made default was used" >&5
+printf "%s\n" "$as_me: WARNING: the previous check could not be made default was used" >&2;}
+        ;;
+esac
+
+
+
+GSSAPI_ROOT="/usr"
+
+# Check whether --with-gssapi-includes was given.
+if test ${with_gssapi_includes+y}
+then :
+  withval=$with_gssapi_includes;  GSSAPI_INCS="-I$withval"
+    want_gss="yes"
+
+fi
+
+
+
+# Check whether --with-gssapi-libs was given.
+if test ${with_gssapi_libs+y}
+then :
+  withval=$with_gssapi_libs;  GSSAPI_LIB_DIR="-L$withval"
+    want_gss="yes"
+
+fi
+
+
+
+# Check whether --with-gssapi was given.
+if test ${with_gssapi+y}
+then :
+  withval=$with_gssapi;
+  GSSAPI_ROOT="$withval"
+  if test x"$GSSAPI_ROOT" != xno; then
+    want_gss="yes"
+    if test x"$GSSAPI_ROOT" = xyes; then
+            GSSAPI_ROOT="/usr"
+    fi
+  fi
+
+fi
+
+
+: ${KRB5CONFIG:="$GSSAPI_ROOT/bin/krb5-config"}
+
+save_CPPFLAGS="$CPPFLAGS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if GSS-API support is requested" >&5
+printf %s "checking if GSS-API support is requested... " >&6; }
+if test x"$want_gss" = xyes; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+  if test $GSSAPI_ROOT != "/usr"; then
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mit-krb5-gssapi options with pkg-config" >&5
+printf %s "checking for mit-krb5-gssapi options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$GSSAPI_ROOT/lib/pkgconfig"; then
+      PKG_CONFIG_LIBDIR="$GSSAPI_ROOT/lib/pkgconfig"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists mit-krb5-gssapi >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+  else
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mit-krb5-gssapi options with pkg-config" >&5
+printf %s "checking for mit-krb5-gssapi options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists mit-krb5-gssapi >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+  fi
+  if test -z "$GSSAPI_INCS"; then
+     if test -n "$host_alias" -a -f "$GSSAPI_ROOT/bin/$host_alias-krb5-config"; then
+        GSSAPI_INCS=`$GSSAPI_ROOT/bin/$host_alias-krb5-config --cflags gssapi`
+     elif test "$PKGCONFIG" != "no" ; then
+        GSSAPI_INCS=`$PKGCONFIG --cflags mit-krb5-gssapi`
+     elif test -f "$KRB5CONFIG"; then
+        GSSAPI_INCS=`$KRB5CONFIG --cflags gssapi`
+     elif test "$GSSAPI_ROOT" != "yes"; then
+        GSSAPI_INCS="-I$GSSAPI_ROOT/include"
+     fi
+  fi
+
+  CPPFLAGS="$CPPFLAGS $GSSAPI_INCS"
+
+  ac_fn_c_check_header_compile "$LINENO" "gss.h" "ac_cv_header_gss_h" "$ac_includes_default"
+if test "x$ac_cv_header_gss_h" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_GSSGNU 1" >>confdefs.h
+
+      gnu_gss=yes
+
+else $as_nop
+
+                   for ac_header in gssapi/gssapi.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "gssapi/gssapi.h" "ac_cv_header_gssapi_gssapi_h" "$ac_includes_default"
+if test "x$ac_cv_header_gssapi_gssapi_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_GSSAPI_GSSAPI_H 1" >>confdefs.h
+
+else $as_nop
+  not_mit=1
+fi
+
+done
+             for ac_header in gssapi/gssapi_generic.h gssapi/gssapi_krb5.h
+do :
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "
+$ac_includes_default
+#ifdef HAVE_GSSAPI_GSSAPI_H
+#include 
+#endif
+
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"
+then :
+  cat >>confdefs.h <<_ACEOF
+#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+else $as_nop
+  not_mit=1
+fi
+
+done
+      if test "x$not_mit" = "x1"; then
+                ac_fn_c_check_header_compile "$LINENO" "gssapi.h" "ac_cv_header_gssapi_h" "$ac_includes_default"
+if test "x$ac_cv_header_gssapi_h" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_GSSHEIMDAL 1" >>confdefs.h
+
+
+else $as_nop
+
+                            want_gss=no
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: disabling GSS-API support since no header files were found" >&5
+printf "%s\n" "$as_me: WARNING: disabling GSS-API support since no header files were found" >&2;}
+
+
+fi
+
+      else
+
+printf "%s\n" "#define HAVE_GSSMIT 1" >>confdefs.h
+
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if GSS-API headers declare GSS_C_NT_HOSTBASED_SERVICE" >&5
+printf %s "checking if GSS-API headers declare GSS_C_NT_HOSTBASED_SERVICE... " >&6; }
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+#include 
+#include 
+
+int main (void)
+{
+
+            gss_import_name(
+                            (OM_uint32 *)0,
+                            (gss_buffer_t)0,
+                            GSS_C_NT_HOSTBASED_SERVICE,
+                            (gss_name_t *)0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define HAVE_OLD_GSSMIT 1" >>confdefs.h
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+      fi
+
+
+fi
+
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+if test x"$want_gss" = xyes; then
+
+printf "%s\n" "#define HAVE_GSSAPI 1" >>confdefs.h
+
+  HAVE_GSSAPI=1
+  curl_gss_msg="enabled (MIT Kerberos/Heimdal)"
+
+  if test -n "$gnu_gss"; then
+    curl_gss_msg="enabled (GNU GSS)"
+    LDFLAGS="$LDFLAGS $GSSAPI_LIB_DIR"
+    LIBS="-lgss $LIBS"
+  elif test -z "$GSSAPI_LIB_DIR"; then
+     case $host in
+     *-*-darwin*)
+        LIBS="-lgssapi_krb5 -lresolv $LIBS"
+        ;;
+     *)
+        if test $GSSAPI_ROOT != "/usr"; then
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mit-krb5-gssapi options with pkg-config" >&5
+printf %s "checking for mit-krb5-gssapi options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$GSSAPI_ROOT/lib/pkgconfig"; then
+      PKG_CONFIG_LIBDIR="$GSSAPI_ROOT/lib/pkgconfig"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists mit-krb5-gssapi >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+        else
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mit-krb5-gssapi options with pkg-config" >&5
+printf %s "checking for mit-krb5-gssapi options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists mit-krb5-gssapi >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+        fi
+        if test -n "$host_alias" -a -f "$GSSAPI_ROOT/bin/$host_alias-krb5-config"; then
+                                 gss_libs=`$GSSAPI_ROOT/bin/$host_alias-krb5-config --libs gssapi`
+           LIBS="$gss_libs $LIBS"
+        elif test "$PKGCONFIG" != "no" ; then
+           gss_libs=`$PKGCONFIG --libs mit-krb5-gssapi`
+           LIBS="$gss_libs $LIBS"
+        elif test -f "$KRB5CONFIG"; then
+                                 gss_libs=`$KRB5CONFIG --libs gssapi`
+           LIBS="$gss_libs $LIBS"
+        else
+           case $host in
+           *-hp-hpux*)
+              gss_libname="gss"
+              ;;
+           *)
+              gss_libname="gssapi"
+              ;;
+           esac
+
+           if test "$GSSAPI_ROOT" != "yes"; then
+              LDFLAGS="$LDFLAGS -L$GSSAPI_ROOT/lib$libsuff"
+              LIBS="-l$gss_libname $LIBS"
+           else
+              LIBS="-l$gss_libname $LIBS"
+           fi
+        fi
+        ;;
+     esac
+  else
+     LDFLAGS="$LDFLAGS $GSSAPI_LIB_DIR"
+     case $host in
+     *-hp-hpux*)
+        LIBS="-lgss $LIBS"
+        ;;
+     *)
+        LIBS="-lgssapi $LIBS"
+        ;;
+     esac
+  fi
+else
+  CPPFLAGS="$save_CPPFLAGS"
+fi
+
+if test x"$want_gss" = xyes; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if we can link against GSS-API library" >&5
+printf %s "checking if we can link against GSS-API library... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gss_init_sec_context innocuous_gss_init_sec_context
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef gss_init_sec_context
+#ifdef __cplusplus
+extern "C"
+#endif
+char gss_init_sec_context ();
+#if defined __stub_gss_init_sec_context || defined __stub___gss_init_sec_context
+choke me
+#endif
+
+int main (void)
+{
+return gss_init_sec_context ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    as_fn_error $? "--with-gssapi was specified, but a GSS-API library was not found." "$LINENO" 5
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+build_libstubgss=no
+if test x"$want_gss" = "xyes"; then
+  build_libstubgss=yes
+fi
+
+ if test "x$build_libstubgss" = "xyes"; then
+  BUILD_STUB_GSS_TRUE=
+  BUILD_STUB_GSS_FALSE='#'
+else
+  BUILD_STUB_GSS_TRUE='#'
+  BUILD_STUB_GSS_FALSE=
+fi
+
+
+
+DEFAULT_SSL_BACKEND=no
+VALID_DEFAULT_SSL_BACKEND=
+
+# Check whether --with-default-ssl-backend was given.
+if test ${with_default_ssl_backend+y}
+then :
+  withval=$with_default_ssl_backend; DEFAULT_SSL_BACKEND=$withval
+fi
+
+case "$DEFAULT_SSL_BACKEND" in
+  no)
+        ;;
+  default|yes)
+        as_fn_error $? "The name of the default SSL backend is required." "$LINENO" 5
+    ;;
+  *)
+
+        VALID_DEFAULT_SSL_BACKEND=no
+    ;;
+esac
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable Windows native SSL/TLS" >&5
+printf %s "checking whether to enable Windows native SSL/TLS... " >&6; }
+if test "x$OPT_SCHANNEL" != xno; then
+  ssl_msg=
+  if test "x$OPT_SCHANNEL" != "xno"  &&
+     test "x$curl_cv_native_windows" = "xyes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_SCHANNEL 1" >>confdefs.h
+
+    USE_SCHANNEL=1
+
+    ssl_msg="Schannel"
+    test schannel != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+    SCHANNEL_ENABLED=1
+    # --with-schannel implies --enable-sspi
+
+printf "%s\n" "#define USE_WINDOWS_SSPI 1" >>confdefs.h
+
+    USE_WINDOWS_SSPI=1
+
+    curl_sspi_msg="enabled"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable Secure Transport" >&5
+printf %s "checking whether to enable Secure Transport... " >&6; }
+if test "x$OPT_SECURETRANSPORT" != xno; then
+  if test "x$OPT_SECURETRANSPORT" != "xno" &&
+     (test "x$cross_compiling" != "xno" || test -d "/System/Library/Frameworks/Security.framework"); then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_SECTRANSP 1" >>confdefs.h
+
+    USE_SECTRANSP=1
+
+    ssl_msg="Secure Transport"
+    test secure-transport != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+    SECURETRANSPORT_ENABLED=1
+    LDFLAGS="$LDFLAGS -framework CoreFoundation -framework Security"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable Amiga native SSL/TLS (AmiSSL)" >&5
+printf %s "checking whether to enable Amiga native SSL/TLS (AmiSSL)... " >&6; }
+if test "$HAVE_PROTO_BSDSOCKET_H" = "1"; then
+  if test "x$OPT_AMISSL" != xno; then
+    ssl_msg=
+    if test "x$OPT_AMISSL" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      ssl_msg="AmiSSL"
+      test amissl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+      AMISSL_ENABLED=1
+      LIBS="-lamisslauto $LIBS"
+
+printf "%s\n" "#define USE_AMISSL 1" >>confdefs.h
+
+
+printf "%s\n" "#define USE_OPENSSL 1" >>confdefs.h
+
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+    test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+
+if test "x$OPT_OPENSSL" != xno; then
+  ssl_msg=
+
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+    case $host in
+    *-*-msys* | *-*-mingw*)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gdi32" >&5
+printf %s "checking for gdi32... " >&6; }
+      my_ac_save_LIBS=$LIBS
+      LIBS="-lgdi32 $LIBS"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+        #include 
+        #include 
+
+int main (void)
+{
+
+          GdiFlush();
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+else $as_nop
+           LIBS=$my_ac_save_LIBS
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+      ;;
+  esac
+
+  case "$OPT_OPENSSL" in
+  yes)
+        PKGTEST="yes"
+    PREFIX_OPENSSL=
+    ;;
+  *)
+        PKGTEST="no"
+    PREFIX_OPENSSL=$OPT_OPENSSL
+
+                OPENSSL_PCDIR="$OPT_OPENSSL/lib/pkgconfig"
+    if test -f "$OPENSSL_PCDIR/openssl.pc"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: PKG_CONFIG_LIBDIR will be set to \"$OPENSSL_PCDIR\"" >&5
+printf "%s\n" "$as_me: PKG_CONFIG_LIBDIR will be set to \"$OPENSSL_PCDIR\"" >&6;}
+      PKGTEST="yes"
+    fi
+
+    if test "$PKGTEST" != "yes"; then
+      # try lib64 instead
+      OPENSSL_PCDIR="$OPT_OPENSSL/lib64/pkgconfig"
+      if test -f "$OPENSSL_PCDIR/openssl.pc"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: PKG_CONFIG_LIBDIR will be set to \"$OPENSSL_PCDIR\"" >&5
+printf "%s\n" "$as_me: PKG_CONFIG_LIBDIR will be set to \"$OPENSSL_PCDIR\"" >&6;}
+        PKGTEST="yes"
+      fi
+    fi
+
+    if test "$PKGTEST" != "yes"; then
+      if test ! -f "$PREFIX_OPENSSL/include/openssl/ssl.h"; then
+        as_fn_error $? "$PREFIX_OPENSSL is a bad --with-openssl prefix!" "$LINENO" 5
+      fi
+    fi
+
+            LIB_OPENSSL="$PREFIX_OPENSSL/lib$libsuff"
+    if test "$PREFIX_OPENSSL" != "/usr" ; then
+      SSL_LDFLAGS="-L$LIB_OPENSSL"
+      SSL_CPPFLAGS="-I$PREFIX_OPENSSL/include"
+    fi
+    SSL_CPPFLAGS="$SSL_CPPFLAGS -I$PREFIX_OPENSSL/include/openssl"
+    ;;
+  esac
+
+  if test "$PKGTEST" = "yes"; then
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for openssl options with pkg-config" >&5
+printf %s "checking for openssl options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$OPENSSL_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$OPENSSL_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists openssl >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      SSL_LIBS=`
+    if test -n "$OPENSSL_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$OPENSSL_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --libs-only-l --libs-only-other openssl 2>/dev/null`
+
+      SSL_LDFLAGS=`
+    if test -n "$OPENSSL_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$OPENSSL_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --libs-only-L openssl 2>/dev/null`
+
+      SSL_CPPFLAGS=`
+    if test -n "$OPENSSL_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$OPENSSL_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --cflags-only-I openssl 2>/dev/null`
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: SSL_LIBS: \"$SSL_LIBS\"" >&5
+printf "%s\n" "$as_me: pkg-config: SSL_LIBS: \"$SSL_LIBS\"" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: SSL_LDFLAGS: \"$SSL_LDFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: SSL_LDFLAGS: \"$SSL_LDFLAGS\"" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: SSL_CPPFLAGS: \"$SSL_CPPFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: SSL_CPPFLAGS: \"$SSL_CPPFLAGS\"" >&6;}
+
+      LIB_OPENSSL=`echo $SSL_LDFLAGS | sed -e 's/^-L//'`
+
+                                          LIBS="$SSL_LIBS $LIBS"
+    fi
+  fi
+
+    CPPFLAGS="$CPPFLAGS $SSL_CPPFLAGS"
+  LDFLAGS="$LDFLAGS $SSL_LDFLAGS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for HMAC_Update in -lcrypto" >&5
+printf %s "checking for HMAC_Update in -lcrypto... " >&6; }
+if test ${ac_cv_lib_crypto_HMAC_Update+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lcrypto  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char HMAC_Update ();
+int main (void)
+{
+return HMAC_Update ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_crypto_HMAC_Update=yes
+else $as_nop
+  ac_cv_lib_crypto_HMAC_Update=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_HMAC_Update" >&5
+printf "%s\n" "$ac_cv_lib_crypto_HMAC_Update" >&6; }
+if test "x$ac_cv_lib_crypto_HMAC_Update" = xyes
+then :
+
+     HAVECRYPTO="yes"
+     LIBS="-lcrypto $LIBS"
+
+else $as_nop
+
+     if test -n "$LIB_OPENSSL" ; then
+       LDFLAGS="$CLEANLDFLAGS -L$LIB_OPENSSL"
+     fi
+     if test "$PKGCONFIG" = "no" -a -n "$PREFIX_OPENSSL" ; then
+       # only set this if pkg-config wasn't used
+       CPPFLAGS="$CLEANCPPFLAGS -I$PREFIX_OPENSSL/include/openssl -I$PREFIX_OPENSSL/include"
+     fi
+     # Linking previously failed, try extra paths from --with-openssl or
+     # pkg-config.  Use a different function name to avoid reusing the earlier
+     # cached result.
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for HMAC_Init_ex in -lcrypto" >&5
+printf %s "checking for HMAC_Init_ex in -lcrypto... " >&6; }
+if test ${ac_cv_lib_crypto_HMAC_Init_ex+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lcrypto  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char HMAC_Init_ex ();
+int main (void)
+{
+return HMAC_Init_ex ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_crypto_HMAC_Init_ex=yes
+else $as_nop
+  ac_cv_lib_crypto_HMAC_Init_ex=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_crypto_HMAC_Init_ex" >&5
+printf "%s\n" "$ac_cv_lib_crypto_HMAC_Init_ex" >&6; }
+if test "x$ac_cv_lib_crypto_HMAC_Init_ex" = xyes
+then :
+
+       HAVECRYPTO="yes"
+       LIBS="-lcrypto $LIBS"
+else $as_nop
+
+
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking OpenSSL linking with -ldl" >&5
+printf %s "checking OpenSSL linking with -ldl... " >&6; }
+       LIBS="-lcrypto $CLEANLIBS -ldl"
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+         #include 
+
+int main (void)
+{
+
+         ERR_clear_error();
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+         HAVECRYPTO="yes"
+
+else $as_nop
+
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking OpenSSL linking with -ldl and -lpthread" >&5
+printf %s "checking OpenSSL linking with -ldl and -lpthread... " >&6; }
+         LIBS="-lcrypto $CLEANLIBS -ldl -lpthread"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+           #include 
+
+int main (void)
+{
+
+           ERR_clear_error();
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+           HAVECRYPTO="yes"
+
+else $as_nop
+
+           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+           LDFLAGS="$CLEANLDFLAGS"
+           CPPFLAGS="$CLEANCPPFLAGS"
+           LIBS="$CLEANLIBS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+
+fi
+
+
+fi
+
+
+  if test X"$HAVECRYPTO" = X"yes"; then
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SSL_connect in -lssl" >&5
+printf %s "checking for SSL_connect in -lssl... " >&6; }
+if test ${ac_cv_lib_ssl_SSL_connect+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lssl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char SSL_connect ();
+int main (void)
+{
+return SSL_connect ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ssl_SSL_connect=yes
+else $as_nop
+  ac_cv_lib_ssl_SSL_connect=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_SSL_connect" >&5
+printf "%s\n" "$ac_cv_lib_ssl_SSL_connect" >&6; }
+if test "x$ac_cv_lib_ssl_SSL_connect" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSL 1" >>confdefs.h
+
+  LIBS="-lssl $LIBS"
+
+fi
+
+
+    if test "$ac_cv_lib_ssl_SSL_connect" != yes; then
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ssl with RSAglue/rsaref libs in use" >&5
+printf %s "checking for ssl with RSAglue/rsaref libs in use... " >&6; };
+        OLIBS=$LIBS
+        LIBS="-lRSAglue -lrsaref $LIBS"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SSL_connect in -lssl" >&5
+printf %s "checking for SSL_connect in -lssl... " >&6; }
+if test ${ac_cv_lib_ssl_SSL_connect+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lssl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char SSL_connect ();
+int main (void)
+{
+return SSL_connect ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ssl_SSL_connect=yes
+else $as_nop
+  ac_cv_lib_ssl_SSL_connect=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_SSL_connect" >&5
+printf "%s\n" "$ac_cv_lib_ssl_SSL_connect" >&6; }
+if test "x$ac_cv_lib_ssl_SSL_connect" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSL 1" >>confdefs.h
+
+  LIBS="-lssl $LIBS"
+
+fi
+
+        if test "$ac_cv_lib_ssl_SSL_connect" != yes; then
+                        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+            LIBS=$OLIBS
+        else
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        fi
+
+    else
+
+                   for ac_header in openssl/x509.h openssl/rsa.h openssl/crypto.h openssl/pem.h openssl/ssl.h openssl/err.h
+do :
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"
+then :
+  cat >>confdefs.h <<_ACEOF
+#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ ssl_msg="OpenSSL"
+	test openssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+        OPENSSL_ENABLED=1
+
+printf "%s\n" "#define USE_OPENSSL 1" >>confdefs.h
+
+fi
+
+done
+
+      if test $ac_cv_header_openssl_x509_h = no; then
+                                ac_fn_c_check_header_compile "$LINENO" "x509.h" "ac_cv_header_x509_h" "$ac_includes_default"
+if test "x$ac_cv_header_x509_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_X509_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "rsa.h" "ac_cv_header_rsa_h" "$ac_includes_default"
+if test "x$ac_cv_header_rsa_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_RSA_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "crypto.h" "ac_cv_header_crypto_h" "$ac_includes_default"
+if test "x$ac_cv_header_crypto_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_CRYPTO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "pem.h" "ac_cv_header_pem_h" "$ac_includes_default"
+if test "x$ac_cv_header_pem_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_PEM_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "ssl.h" "ac_cv_header_ssl_h" "$ac_includes_default"
+if test "x$ac_cv_header_ssl_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SSL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "err.h" "ac_cv_header_err_h" "$ac_includes_default"
+if test "x$ac_cv_header_err_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ERR_H 1" >>confdefs.h
+
+fi
+
+
+        if test $ac_cv_header_x509_h = yes &&
+           test $ac_cv_header_crypto_h = yes &&
+           test $ac_cv_header_ssl_h = yes; then
+                    ssl_msg="OpenSSL"
+          OPENSSL_ENABLED=1
+        fi
+      fi
+    fi
+
+    if test X"$OPENSSL_ENABLED" != X"1"; then
+       LIBS="$CLEANLIBS"
+    fi
+
+    if test X"$OPT_OPENSSL" != Xoff &&
+       test "$OPENSSL_ENABLED" != "1"; then
+      as_fn_error $? "OpenSSL libs and/or directories were not found where specified!" "$LINENO" 5
+    fi
+  fi
+
+  if test X"$OPENSSL_ENABLED" = X"1"; then
+
+    ac_fn_c_check_func "$LINENO" "RAND_egd" "ac_cv_func_RAND_egd"
+if test "x$ac_cv_func_RAND_egd" = xyes
+then :
+  printf "%s\n" "#define HAVE_RAND_EGD 1" >>confdefs.h
+
+fi
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for BoringSSL" >&5
+printf %s "checking for BoringSSL... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+                #include 
+
+int main (void)
+{
+
+                #ifndef OPENSSL_IS_BORINGSSL
+                #error not boringssl
+                #endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_BORINGSSL 1" >>confdefs.h
+
+        ssl_msg="BoringSSL"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libressl" >&5
+printf %s "checking for libressl... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        int dummy = LIBRESSL_VERSION_NUMBER;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_LIBRESSL 1" >>confdefs.h
+
+      ssl_msg="libressl"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for OpenSSL >= v3" >&5
+printf %s "checking for OpenSSL >= v3... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        #if defined(OPENSSL_VERSION_MAJOR) && (OPENSSL_VERSION_MAJOR >= 3)
+        return 0;
+        #else
+        #error older than 3
+        #endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_OPENSSL3 1" >>confdefs.h
+
+                              CPPFLAGS="$CPPFLAGS -DOPENSSL_SUPPRESS_DEPRECATED"
+      ssl_msg="OpenSSL v3+"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+
+  if test "$OPENSSL_ENABLED" = "1"; then
+    if test -n "$LIB_OPENSSL"; then
+                            if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$LIB_OPENSSL"
+         export CURL_LIBRARY_PATH
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $LIB_OPENSSL to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $LIB_OPENSSL to CURL_LIBRARY_PATH" >&6;}
+       fi
+    fi
+    check_for_ca_bundle=1
+  fi
+
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+if test X"$OPT_OPENSSL" != Xno &&
+  test "$OPENSSL_ENABLED" != "1"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: OPT_OPENSSL: $OPT_OPENSSL" >&5
+printf "%s\n" "$as_me: OPT_OPENSSL: $OPT_OPENSSL" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: OPENSSL_ENABLED: $OPENSSL_ENABLED" >&5
+printf "%s\n" "$as_me: OPENSSL_ENABLED: $OPENSSL_ENABLED" >&6;}
+  as_fn_error $? "--with-openssl was given but OpenSSL could not be detected" "$LINENO" 5
+fi
+
+
+if test X"$OPENSSL_ENABLED" = X"1"; then
+
+# Check whether --with-egd-socket was given.
+if test ${with_egd_socket+y}
+then :
+  withval=$with_egd_socket;  EGD_SOCKET="$withval"
+
+fi
+
+  if test -n "$EGD_SOCKET" ; then
+
+printf "%s\n" "#define EGD_SOCKET \"$EGD_SOCKET\"" >>confdefs.h
+
+  fi
+
+
+# Check whether --with-random was given.
+if test ${with_random+y}
+then :
+  withval=$with_random;  RANDOM_FILE="$withval"
+else $as_nop
+
+          if test x$cross_compiling != xyes; then
+                        as_ac_File=`printf "%s\n" "ac_cv_file_"/dev/urandom"" | $as_tr_sh`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for \"/dev/urandom\"" >&5
+printf %s "checking for \"/dev/urandom\"... " >&6; }
+if eval test \${$as_ac_File+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  test "$cross_compiling" = yes &&
+  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
+if test -r ""/dev/urandom""; then
+  eval "$as_ac_File=yes"
+else
+  eval "$as_ac_File=no"
+fi
+fi
+eval ac_res=\$$as_ac_File
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_File"\" = x"yes"
+then :
+   RANDOM_FILE="/dev/urandom"
+fi
+
+          else
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: skipped the /dev/urandom detection when cross-compiling" >&5
+printf "%s\n" "$as_me: WARNING: skipped the /dev/urandom detection when cross-compiling" >&2;}
+          fi
+
+
+fi
+
+  if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then
+
+
+printf "%s\n" "#define RANDOM_FILE \"$RANDOM_FILE\"" >>confdefs.h
+
+  fi
+fi
+
+if test "$OPENSSL_ENABLED" = "1"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SRP support in OpenSSL" >&5
+printf %s "checking for SRP support in OpenSSL... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+      SSL_CTX_set_srp_username(NULL, "");
+      SSL_CTX_set_srp_password(NULL, "");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_OPENSSL_SRP 1" >>confdefs.h
+
+    HAVE_OPENSSL_SRP=1
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+if test X"$OPENSSL_ENABLED" = X"1"; then
+# Check whether --enable-openssl-auto-load-config was given.
+if test ${enable_openssl_auto_load_config+y}
+then :
+  enableval=$enable_openssl_auto_load_config;  if test X"$enableval" = X"no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: automatic loading of OpenSSL configuration disabled" >&5
+printf "%s\n" "$as_me: automatic loading of OpenSSL configuration disabled" >&6;}
+
+printf "%s\n" "#define CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG 1" >>confdefs.h
+
+  fi
+
+fi
+
+fi
+
+
+
+if test "x$OPT_GNUTLS" != xno; then
+  ssl_msg=
+
+  if test X"$OPT_GNUTLS" != Xno; then
+
+    addld=""
+    addlib=""
+    gtlslib=""
+    version=""
+    addcflags=""
+
+    if test "x$OPT_GNUTLS" = "xyes"; then
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gnutls options with pkg-config" >&5
+printf %s "checking for gnutls options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists gnutls >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+      if test "$PKGCONFIG" != "no" ; then
+        addlib=`$PKGCONFIG --libs-only-l gnutls`
+        addld=`$PKGCONFIG --libs-only-L gnutls`
+        addcflags=`$PKGCONFIG --cflags-only-I gnutls`
+        version=`$PKGCONFIG --modversion gnutls`
+        gtlslib=`echo $addld | $SED -e 's/^-L//'`
+      else
+                        check=`libgnutls-config --version 2>/dev/null`
+        if test -n "$check"; then
+          addlib=`libgnutls-config --libs`
+          addcflags=`libgnutls-config --cflags`
+          version=`libgnutls-config --version`
+          gtlslib=`libgnutls-config --prefix`/lib$libsuff
+        fi
+      fi
+    else
+                  cfg=$OPT_GNUTLS/bin/libgnutls-config
+      check=`$cfg --version 2>/dev/null`
+      if test -n "$check"; then
+        addlib=`$cfg --libs`
+        addcflags=`$cfg --cflags`
+        version=`$cfg --version`
+        gtlslib=`$cfg --prefix`/lib$libsuff
+      else
+                addlib=-lgnutls
+        addld=-L$OPT_GNUTLS/lib$libsuff
+        addcflags=-I$OPT_GNUTLS/include
+        version="" # we just don't know
+        gtlslib=$OPT_GNUTLS/lib$libsuff
+      fi
+    fi
+
+    if test -z "$version"; then
+            version="unknown"
+    fi
+
+    if test -n "$addlib"; then
+
+      CLEANLIBS="$LIBS"
+      CLEANCPPFLAGS="$CPPFLAGS"
+      CLEANLDFLAGS="$LDFLAGS"
+
+      LIBS="$addlib $LIBS"
+      LDFLAGS="$LDFLAGS $addld"
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+      fi
+
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gnutls_x509_crt_get_dn2 in -lgnutls" >&5
+printf %s "checking for gnutls_x509_crt_get_dn2 in -lgnutls... " >&6; }
+if test ${ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lgnutls  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gnutls_x509_crt_get_dn2 ();
+int main (void)
+{
+return gnutls_x509_crt_get_dn2 ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2=yes
+else $as_nop
+  ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2" >&5
+printf "%s\n" "$ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2" >&6; }
+if test "x$ac_cv_lib_gnutls_gnutls_x509_crt_get_dn2" = xyes
+then :
+
+
+printf "%s\n" "#define USE_GNUTLS 1" >>confdefs.h
+
+       USE_GNUTLS=1
+
+       GNUTLS_ENABLED=1
+       USE_GNUTLS="yes"
+       ssl_msg="GnuTLS"
+       test gnutls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+
+         LIBS="$CLEANLIBS"
+         CPPFLAGS="$CLEANCPPFLAGS"
+
+fi
+
+
+      if test "x$USE_GNUTLS" = "xyes"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected GnuTLS version $version" >&5
+printf "%s\n" "$as_me: detected GnuTLS version $version" >&6;}
+        check_for_ca_bundle=1
+        if test -n "$gtlslib"; then
+                                                  if test "x$cross_compiling" != "xyes"; then
+            CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$gtlslib"
+            export CURL_LIBRARY_PATH
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $gtlslib to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $gtlslib to CURL_LIBRARY_PATH" >&6;}
+          fi
+        fi
+      fi
+
+    fi
+
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+if test "$GNUTLS_ENABLED" = "1"; then
+  USE_GNUTLS_NETTLE=
+  # First check if we can detect either crypto library via transitive linking
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nettle_MD5Init in -lgnutls" >&5
+printf %s "checking for nettle_MD5Init in -lgnutls... " >&6; }
+if test ${ac_cv_lib_gnutls_nettle_MD5Init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lgnutls  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char nettle_MD5Init ();
+int main (void)
+{
+return nettle_MD5Init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_gnutls_nettle_MD5Init=yes
+else $as_nop
+  ac_cv_lib_gnutls_nettle_MD5Init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gnutls_nettle_MD5Init" >&5
+printf "%s\n" "$ac_cv_lib_gnutls_nettle_MD5Init" >&6; }
+if test "x$ac_cv_lib_gnutls_nettle_MD5Init" = xyes
+then :
+   USE_GNUTLS_NETTLE=1
+fi
+
+
+  # If not, try linking directly to both of them to see if they are available
+  if test "$USE_GNUTLS_NETTLE" = ""; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nettle_MD5Init in -lnettle" >&5
+printf %s "checking for nettle_MD5Init in -lnettle... " >&6; }
+if test ${ac_cv_lib_nettle_nettle_MD5Init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnettle  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char nettle_MD5Init ();
+int main (void)
+{
+return nettle_MD5Init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_nettle_nettle_MD5Init=yes
+else $as_nop
+  ac_cv_lib_nettle_nettle_MD5Init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nettle_nettle_MD5Init" >&5
+printf "%s\n" "$ac_cv_lib_nettle_nettle_MD5Init" >&6; }
+if test "x$ac_cv_lib_nettle_nettle_MD5Init" = xyes
+then :
+   USE_GNUTLS_NETTLE=1
+fi
+
+  fi
+  if test "$USE_GNUTLS_NETTLE" = ""; then
+    as_fn_error $? "GnuTLS found, but nettle was not found" "$LINENO" 5
+  fi
+  LIBS="-lnettle $LIBS"
+fi
+
+if test "$GNUTLS_ENABLED" = "1"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gnutls_srp_verifier in -lgnutls" >&5
+printf %s "checking for gnutls_srp_verifier in -lgnutls... " >&6; }
+if test ${ac_cv_lib_gnutls_gnutls_srp_verifier+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lgnutls  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gnutls_srp_verifier ();
+int main (void)
+{
+return gnutls_srp_verifier ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_gnutls_gnutls_srp_verifier=yes
+else $as_nop
+  ac_cv_lib_gnutls_gnutls_srp_verifier=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gnutls_gnutls_srp_verifier" >&5
+printf "%s\n" "$ac_cv_lib_gnutls_gnutls_srp_verifier" >&6; }
+if test "x$ac_cv_lib_gnutls_gnutls_srp_verifier" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_GNUTLS_SRP 1" >>confdefs.h
+
+     HAVE_GNUTLS_SRP=1
+
+
+fi
+
+fi
+
+
+
+
+if test "x$OPT_MBEDTLS" != xno; then
+  _cppflags=$CPPFLAGS
+  _ldflags=$LDFLAGS
+  ssl_msg=
+
+  if test X"$OPT_MBEDTLS" != Xno; then
+
+    if test "$OPT_MBEDTLS" = "yes"; then
+      OPT_MBEDTLS=""
+    fi
+
+    if test -z "$OPT_MBEDTLS" ; then
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mbedtls_havege_init in -lmbedtls" >&5
+printf %s "checking for mbedtls_havege_init in -lmbedtls... " >&6; }
+if test ${ac_cv_lib_mbedtls_mbedtls_havege_init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmbedtls -lmbedx509 -lmbedcrypto $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char mbedtls_havege_init ();
+int main (void)
+{
+return mbedtls_havege_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_mbedtls_mbedtls_havege_init=yes
+else $as_nop
+  ac_cv_lib_mbedtls_mbedtls_havege_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mbedtls_mbedtls_havege_init" >&5
+printf "%s\n" "$ac_cv_lib_mbedtls_mbedtls_havege_init" >&6; }
+if test "x$ac_cv_lib_mbedtls_mbedtls_havege_init" = xyes
+then :
+
+
+printf "%s\n" "#define USE_MBEDTLS 1" >>confdefs.h
+
+         USE_MBEDTLS=1
+
+         MBEDTLS_ENABLED=1
+         USE_MBEDTLS="yes"
+         ssl_msg="mbedTLS"
+	 test mbedtls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+fi
+
+    fi
+
+    addld=""
+    addlib=""
+    addcflags=""
+    mbedtlslib=""
+
+    if test "x$USE_MBEDTLS" != "xyes"; then
+            addld=-L$OPT_MBEDTLS/lib$libsuff
+      addcflags=-I$OPT_MBEDTLS/include
+      mbedtlslib=$OPT_MBEDTLS/lib$libsuff
+
+      LDFLAGS="$LDFLAGS $addld"
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+      fi
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for mbedtls_ssl_init in -lmbedtls" >&5
+printf %s "checking for mbedtls_ssl_init in -lmbedtls... " >&6; }
+if test ${ac_cv_lib_mbedtls_mbedtls_ssl_init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmbedtls -lmbedx509 -lmbedcrypto $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char mbedtls_ssl_init ();
+int main (void)
+{
+return mbedtls_ssl_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_mbedtls_mbedtls_ssl_init=yes
+else $as_nop
+  ac_cv_lib_mbedtls_mbedtls_ssl_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mbedtls_mbedtls_ssl_init" >&5
+printf "%s\n" "$ac_cv_lib_mbedtls_mbedtls_ssl_init" >&6; }
+if test "x$ac_cv_lib_mbedtls_mbedtls_ssl_init" = xyes
+then :
+
+
+printf "%s\n" "#define USE_MBEDTLS 1" >>confdefs.h
+
+       USE_MBEDTLS=1
+
+       MBEDTLS_ENABLED=1
+       USE_MBEDTLS="yes"
+       ssl_msg="mbedTLS"
+       test mbedtls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+
+         CPPFLAGS=$_cppflags
+         LDFLAGS=$_ldflags
+
+fi
+
+    fi
+
+    if test "x$USE_MBEDTLS" = "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected mbedTLS" >&5
+printf "%s\n" "$as_me: detected mbedTLS" >&6;}
+      check_for_ca_bundle=1
+
+      LIBS="-lmbedtls -lmbedx509 -lmbedcrypto $LIBS"
+
+      if test -n "$mbedtlslib"; then
+                                        if test "x$cross_compiling" != "xyes"; then
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$mbedtlslib"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $mbedtlslib to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $mbedtlslib to CURL_LIBRARY_PATH" >&6;}
+        fi
+      fi
+    fi
+
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+
+
+case "$OPT_WOLFSSL" in
+  yes|no)
+    wolfpkg=""
+    ;;
+  *)
+    wolfpkg="$withval/lib/pkgconfig"
+    ;;
+esac
+
+if test "x$OPT_WOLFSSL" != xno; then
+  _cppflags=$CPPFLAGS
+  _ldflags=$LDFLAGS
+
+  ssl_msg=
+
+  if test X"$OPT_WOLFSSL" != Xno; then
+
+    if test "$OPT_WOLFSSL" = "yes"; then
+      OPT_WOLFSSL=""
+    fi
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for wolfssl options with pkg-config" >&5
+printf %s "checking for wolfssl options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$wolfpkg"; then
+      PKG_CONFIG_LIBDIR="$wolfpkg"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists wolfssl >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Check dir $wolfpkg" >&5
+printf "%s\n" "$as_me: Check dir $wolfpkg" >&6;}
+
+    addld=""
+    addlib=""
+    addcflags=""
+    if test "$PKGCONFIG" != "no" ; then
+      addlib=`
+    if test -n "$wolfpkg"; then
+      PKG_CONFIG_LIBDIR="$wolfpkg"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+        $PKGCONFIG --libs-only-l wolfssl`
+      addld=`
+    if test -n "$wolfpkg"; then
+      PKG_CONFIG_LIBDIR="$wolfpkg"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+        $PKGCONFIG --libs-only-L wolfssl`
+      addcflags=`
+    if test -n "$wolfpkg"; then
+      PKG_CONFIG_LIBDIR="$wolfpkg"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+        $PKGCONFIG --cflags-only-I wolfssl`
+      version=`
+    if test -n "$wolfpkg"; then
+      PKG_CONFIG_LIBDIR="$wolfpkg"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+        $PKGCONFIG --modversion wolfssl`
+      wolfssllibpath=`echo $addld | $SED -e 's/^-L//'`
+    else
+      addlib=-lwolfssl
+            if test -n "$OPT_WOLFSSL"; then
+        addld=-L$OPT_WOLFSSL/lib$libsuff
+        addcflags=-I$OPT_WOLFSSL/include
+        wolfssllibpath=$OPT_WOLFSSL/lib$libsuff
+      fi
+    fi
+
+    if test "x$USE_WOLFSSL" != "xyes"; then
+
+      LDFLAGS="$LDFLAGS $addld"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Add $addld to LDFLAGS" >&5
+printf "%s\n" "$as_me: Add $addld to LDFLAGS" >&6;}
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Add $addcflags to CPPFLAGS" >&5
+printf "%s\n" "$as_me: Add $addcflags to CPPFLAGS" >&6;}
+      fi
+
+      my_ac_save_LIBS="$LIBS"
+      LIBS="$addlib $LIBS"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Add $addlib to LIBS" >&5
+printf "%s\n" "$as_me: Add $addlib to LIBS" >&6;}
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for wolfSSL_Init in -lwolfssl" >&5
+printf %s "checking for wolfSSL_Init in -lwolfssl... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+/* These aren't needed for detection and confuse WolfSSL.
+   They are set up properly later if it is detected.  */
+#undef SIZEOF_LONG
+#undef SIZEOF_LONG_LONG
+#include 
+
+int main (void)
+{
+
+	  return wolfSSL_Init();
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_WOLFSSL 1" >>confdefs.h
+
+         USE_WOLFSSL=1
+
+         WOLFSSL_ENABLED=1
+         USE_WOLFSSL="yes"
+         ssl_msg="WolfSSL"
+	 test wolfssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+         CPPFLAGS=$_cppflags
+         LDFLAGS=$_ldflags
+         wolfssllibpath=""
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+      LIBS="$my_ac_save_LIBS"
+    fi
+
+    if test "x$USE_WOLFSSL" = "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected wolfSSL" >&5
+printf "%s\n" "$as_me: detected wolfSSL" >&6;}
+      check_for_ca_bundle=1
+
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
+printf %s "checking size of long long... " >&6; }
+if test ${ac_cv_sizeof_long_long+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (long long) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_long_long=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_long_long != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_long_long = x ; then
+  as_fn_error $? "cannot determine a size for long long" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
+printf "%s\n" "$ac_cv_sizeof_long_long" >&6; }
+
+printf "%s\n" "#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long" >>confdefs.h
+
+
+
+      LIBS="$addlib -lm $LIBS"
+
+                        ac_fn_c_check_func "$LINENO" "wolfSSL_get_peer_certificate" "ac_cv_func_wolfSSL_get_peer_certificate"
+if test "x$ac_cv_func_wolfSSL_get_peer_certificate" = xyes
+then :
+  printf "%s\n" "#define HAVE_WOLFSSL_GET_PEER_CERTIFICATE 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "wolfSSL_UseALPN" "ac_cv_func_wolfSSL_UseALPN"
+if test "x$ac_cv_func_wolfSSL_UseALPN" = xyes
+then :
+  printf "%s\n" "#define HAVE_WOLFSSL_USEALPN 1" >>confdefs.h
+
+fi
+
+
+                  ac_fn_c_check_func "$LINENO" "wolfSSL_DES_ecb_encrypt" "ac_cv_func_wolfSSL_DES_ecb_encrypt"
+if test "x$ac_cv_func_wolfSSL_DES_ecb_encrypt" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_WOLFSSL_DES_ECB_ENCRYPT 1" >>confdefs.h
+
+            if test -n "$addcflags"; then
+                            for f in $addcflags; do
+                CPPFLAGS="$f/wolfssl $CPPFLAGS"
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Add $f/wolfssl to CPPFLAGS" >&5
+printf "%s\n" "$as_me: Add $f/wolfssl to CPPFLAGS" >&6;}
+                break
+              done
+            else
+                                          CPPFLAGS="-I/usr/include/wolfssl $CPPFLAGS"
+              { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Add /usr/include/wolfssl to CPPFLAGS" >&5
+printf "%s\n" "$as_me: Add /usr/include/wolfssl to CPPFLAGS" >&6;}
+            fi
+            WOLFSSL_NTLM=1
+
+
+fi
+
+
+      if test -n "$wolfssllibpath"; then
+                                        if test "x$cross_compiling" != "xyes"; then
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$wolfssllibpath"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $wolfssllibpath to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $wolfssllibpath to CURL_LIBRARY_PATH" >&6;}
+        fi
+      fi
+
+    fi
+
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+
+
+if test "x$OPT_BEARSSL" != xno; then
+  _cppflags=$CPPFLAGS
+  _ldflags=$LDFLAGS
+  ssl_msg=
+
+  if test X"$OPT_BEARSSL" != Xno; then
+
+    if test "$OPT_BEARSSL" = "yes"; then
+      OPT_BEARSSL=""
+    fi
+
+    if test -z "$OPT_BEARSSL" ; then
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for br_ssl_client_init_full in -lbearssl" >&5
+printf %s "checking for br_ssl_client_init_full in -lbearssl... " >&6; }
+if test ${ac_cv_lib_bearssl_br_ssl_client_init_full+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbearssl -lbearssl $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char br_ssl_client_init_full ();
+int main (void)
+{
+return br_ssl_client_init_full ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_bearssl_br_ssl_client_init_full=yes
+else $as_nop
+  ac_cv_lib_bearssl_br_ssl_client_init_full=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bearssl_br_ssl_client_init_full" >&5
+printf "%s\n" "$ac_cv_lib_bearssl_br_ssl_client_init_full" >&6; }
+if test "x$ac_cv_lib_bearssl_br_ssl_client_init_full" = xyes
+then :
+
+
+printf "%s\n" "#define USE_BEARSSL 1" >>confdefs.h
+
+         USE_BEARSSL=1
+
+         BEARSSL_ENABLED=1
+         USE_BEARSSL="yes"
+         ssl_msg="BearSSL"
+	 test bearssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+fi
+
+    fi
+
+    addld=""
+    addlib=""
+    addcflags=""
+    bearssllib=""
+
+    if test "x$USE_BEARSSL" != "xyes"; then
+            addld=-L$OPT_BEARSSL/lib$libsuff
+      addcflags=-I$OPT_BEARSSL/include
+      bearssllib=$OPT_BEARSSL/lib$libsuff
+
+      LDFLAGS="$LDFLAGS $addld"
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+      fi
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for br_ssl_client_init_full in -lbearssl" >&5
+printf %s "checking for br_ssl_client_init_full in -lbearssl... " >&6; }
+if test ${ac_cv_lib_bearssl_br_ssl_client_init_full+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lbearssl -lbearssl $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char br_ssl_client_init_full ();
+int main (void)
+{
+return br_ssl_client_init_full ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_bearssl_br_ssl_client_init_full=yes
+else $as_nop
+  ac_cv_lib_bearssl_br_ssl_client_init_full=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bearssl_br_ssl_client_init_full" >&5
+printf "%s\n" "$ac_cv_lib_bearssl_br_ssl_client_init_full" >&6; }
+if test "x$ac_cv_lib_bearssl_br_ssl_client_init_full" = xyes
+then :
+
+
+printf "%s\n" "#define USE_BEARSSL 1" >>confdefs.h
+
+       USE_BEARSSL=1
+
+       BEARSSL_ENABLED=1
+       USE_BEARSSL="yes"
+       ssl_msg="BearSSL"
+       test bearssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+
+         CPPFLAGS=$_cppflags
+         LDFLAGS=$_ldflags
+
+fi
+
+    fi
+
+    if test "x$USE_BEARSSL" = "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected BearSSL" >&5
+printf "%s\n" "$as_me: detected BearSSL" >&6;}
+      check_for_ca_bundle=1
+
+      LIBS="-lbearssl $LIBS"
+
+      if test -n "$bearssllib"; then
+                                        if test "x$cross_compiling" != "xyes"; then
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$bearssllib"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $bearssllib to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $bearssllib to CURL_LIBRARY_PATH" >&6;}
+        fi
+      fi
+    fi
+
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+
+if test "x$OPT_RUSTLS" != xno; then
+  _cppflags=$CPPFLAGS
+  _ldflags=$LDFLAGS
+  ssl_msg=
+
+  if test X"$OPT_RUSTLS" != Xno; then
+
+    if test "$OPT_RUSTLS" = "yes"; then
+      OPT_RUSTLS=""
+    fi
+
+    if test -z "$OPT_RUSTLS" ; then
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for rustls_client_session_read in -lrustls" >&5
+printf %s "checking for rustls_client_session_read in -lrustls... " >&6; }
+if test ${ac_cv_lib_rustls_rustls_client_session_read+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lrustls -lpthread -ldl -lm $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char rustls_client_session_read ();
+int main (void)
+{
+return rustls_client_session_read ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_rustls_rustls_client_session_read=yes
+else $as_nop
+  ac_cv_lib_rustls_rustls_client_session_read=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rustls_rustls_client_session_read" >&5
+printf "%s\n" "$ac_cv_lib_rustls_rustls_client_session_read" >&6; }
+if test "x$ac_cv_lib_rustls_rustls_client_session_read" = xyes
+then :
+
+
+printf "%s\n" "#define USE_RUSTLS 1" >>confdefs.h
+
+         USE_RUSTLS=1
+
+         RUSTLS_ENABLED=1
+         USE_RUSTLS="yes"
+         ssl_msg="rustls"
+	 test rustls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+fi
+
+    fi
+
+    if test "x$USE_RUSTLS" != "xyes"; then
+            addld=-L$OPT_RUSTLS/lib$libsuff
+      addcflags=-I$OPT_RUSTLS/include
+      rustlslib=$OPT_RUSTLS/lib$libsuff
+
+      LDFLAGS="$LDFLAGS $addld"
+      if test "$addcflags" != "-I/usr/include"; then
+         CPPFLAGS="$CPPFLAGS $addcflags"
+      fi
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for rustls_connection_read in -lrustls" >&5
+printf %s "checking for rustls_connection_read in -lrustls... " >&6; }
+if test ${ac_cv_lib_rustls_rustls_connection_read+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lrustls -lpthread -ldl -lm $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char rustls_connection_read ();
+int main (void)
+{
+return rustls_connection_read ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_rustls_rustls_connection_read=yes
+else $as_nop
+  ac_cv_lib_rustls_rustls_connection_read=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rustls_rustls_connection_read" >&5
+printf "%s\n" "$ac_cv_lib_rustls_rustls_connection_read" >&6; }
+if test "x$ac_cv_lib_rustls_rustls_connection_read" = xyes
+then :
+
+
+printf "%s\n" "#define USE_RUSTLS 1" >>confdefs.h
+
+       USE_RUSTLS=1
+
+       RUSTLS_ENABLED=1
+       USE_RUSTLS="yes"
+       ssl_msg="rustls"
+       test rustls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+  as_fn_error $? "--with-rustls was specified but could not find rustls." "$LINENO" 5
+fi
+
+    fi
+
+    if test "x$USE_RUSTLS" = "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected rustls" >&5
+printf "%s\n" "$as_me: detected rustls" >&6;}
+      check_for_ca_bundle=1
+
+      LIBS="-lrustls -lpthread -ldl -lm $LIBS"
+
+      if test -n "$rustlslib"; then
+                                        if test "x$cross_compiling" != "xyes"; then
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$rustlslib"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $rustlslib to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $rustlslib to CURL_LIBRARY_PATH" >&6;}
+        fi
+      fi
+    fi
+
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+if test "x$OPT_NSS" != xno; then
+  ssl_msg=
+
+  if test X"$OPT_NSS" != Xno; then
+
+    addld=""
+    addlib=""
+    addcflags=""
+    nssprefix=""
+    version=""
+
+    if test "x$OPT_NSS" = "xyes"; then
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nss options with pkg-config" >&5
+printf %s "checking for nss options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists nss >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+      if test "$PKGCONFIG" != "no" ; then
+        addlib=`$PKGCONFIG --libs nss`
+        addcflags=`$PKGCONFIG --cflags nss`
+        version=`$PKGCONFIG --modversion nss`
+        nssprefix=`$PKGCONFIG --variable=prefix nss`
+      else
+
+        check=`nss-config --version 2>/dev/null`
+        if test -n "$check"; then
+          addlib=`nss-config --libs`
+          addcflags=`nss-config --cflags`
+          version=`nss-config --version`
+          nssprefix=`nss-config --prefix`
+        else
+          addlib="-lnss3"
+          addcflags=""
+          version="unknown"
+        fi
+      fi
+    else
+      NSS_PCDIR="$OPT_NSS/lib/pkgconfig"
+      if test -f "$NSS_PCDIR/nss.pc"; then
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nss options with pkg-config" >&5
+printf %s "checking for nss options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists nss >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+        if test "$PKGCONFIG" != "no" ; then
+          addld=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+ $PKGCONFIG --libs-only-L nss`
+          addlib=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+ $PKGCONFIG --libs-only-l nss`
+          addcflags=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+ $PKGCONFIG --cflags nss`
+          version=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+ $PKGCONFIG --modversion nss`
+          nssprefix=`
+    if test -n "$NSS_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$NSS_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+ $PKGCONFIG --variable=prefix nss`
+        fi
+      fi
+    fi
+
+    if test -z "$addlib"; then
+      # Without pkg-config, we'll kludge in some defaults
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Using hard-wired libraries and compilation flags for NSS." >&5
+printf "%s\n" "$as_me: WARNING: Using hard-wired libraries and compilation flags for NSS." >&2;}
+      addld="-L$OPT_NSS/lib"
+      addlib="-lssl3 -lsmime3 -lnss3 -lplds4 -lplc4 -lnspr4"
+      addcflags="-I$OPT_NSS/include"
+      version="unknown"
+      nssprefix=$OPT_NSS
+    fi
+
+    CLEANLDFLAGS="$LDFLAGS"
+    CLEANLIBS="$LIBS"
+    CLEANCPPFLAGS="$CPPFLAGS"
+
+    LDFLAGS="$addld $LDFLAGS"
+    LIBS="$addlib $LIBS"
+    if test "$addcflags" != "-I/usr/include"; then
+       CPPFLAGS="$CPPFLAGS $addcflags"
+    fi
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SSL_VersionRangeSet in -lnss3" >&5
+printf %s "checking for SSL_VersionRangeSet in -lnss3... " >&6; }
+if test ${ac_cv_lib_nss3_SSL_VersionRangeSet+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnss3  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char SSL_VersionRangeSet ();
+int main (void)
+{
+return SSL_VersionRangeSet ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_nss3_SSL_VersionRangeSet=yes
+else $as_nop
+  ac_cv_lib_nss3_SSL_VersionRangeSet=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nss3_SSL_VersionRangeSet" >&5
+printf "%s\n" "$ac_cv_lib_nss3_SSL_VersionRangeSet" >&6; }
+if test "x$ac_cv_lib_nss3_SSL_VersionRangeSet" = xyes
+then :
+
+
+printf "%s\n" "#define USE_NSS 1" >>confdefs.h
+
+     USE_NSS=1
+
+     USE_NSS="yes"
+     NSS_ENABLED=1
+     ssl_msg="NSS"
+     test nss != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
+
+else $as_nop
+
+       LDFLAGS="$CLEANLDFLAGS"
+       LIBS="$CLEANLIBS"
+       CPPFLAGS="$CLEANCPPFLAGS"
+
+fi
+
+
+    if test "x$USE_NSS" = "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: detected NSS version $version" >&5
+printf "%s\n" "$as_me: detected NSS version $version" >&6;}
+
+                        ac_fn_c_check_func "$LINENO" "PK11_CreateManagedGenericObject" "ac_cv_func_PK11_CreateManagedGenericObject"
+if test "x$ac_cv_func_PK11_CreateManagedGenericObject" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_PK11_CREATEMANAGEDGENERICOBJECT 1" >>confdefs.h
+
+
+fi
+
+
+            NSS_LIBS=$addlib
+
+
+                              if test "x$cross_compiling" != "xyes"; then
+        CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$nssprefix/lib$libsuff"
+        export CURL_LIBRARY_PATH
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $nssprefix/lib$libsuff to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $nssprefix/lib$libsuff to CURL_LIBRARY_PATH" >&6;}
+      fi
+
+    fi
+  fi
+  test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
+fi
+
+
+
+if test "x$USE_WIN32_CRYPTO" = "x1" -o "x$USE_SCHANNEL" = "x1"; then
+  LIBS="-ladvapi32 -lcrypt32 $LIBS"
+fi
+
+case "x$OPENSSL_ENABLED$GNUTLS_ENABLED$NSS_ENABLED$MBEDTLS_ENABLED$WOLFSSL_ENABLED$SCHANNEL_ENABLED$SECURETRANSPORT_ENABLED$BEARSSL_ENABLED$AMISSL_ENABLED$RUSTLS_ENABLED"
+in
+x)
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more." >&5
+printf "%s\n" "$as_me: WARNING: SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more." >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Use --with-openssl, --with-gnutls, --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel, --with-secure-transport, --with-amissl, --with-bearssl or --with-rustls to address this." >&5
+printf "%s\n" "$as_me: WARNING: Use --with-openssl, --with-gnutls, --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel, --with-secure-transport, --with-amissl, --with-bearssl or --with-rustls to address this." >&2;}
+  ;;
+x1)
+  # one SSL backend is enabled
+
+  SSL_ENABLED="1"
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: built with one SSL backend" >&5
+printf "%s\n" "$as_me: built with one SSL backend" >&6;}
+  ;;
+*)
+  # more than one SSL backend is enabled
+
+  SSL_ENABLED="1"
+
+  CURL_WITH_MULTI_SSL="1"
+
+printf "%s\n" "#define CURL_WITH_MULTI_SSL 1" >>confdefs.h
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: built with multiple SSL backends" >&5
+printf "%s\n" "$as_me: built with multiple SSL backends" >&6;}
+  ;;
+esac
+
+if test -n "$ssl_backends"; then
+  curl_ssl_msg="enabled ($ssl_backends)"
+fi
+
+if test no = "$VALID_DEFAULT_SSL_BACKEND"
+then
+  if test -n "$SSL_ENABLED"
+  then
+    as_fn_error $? "Default SSL backend $DEFAULT_SSL_BACKEND not enabled!" "$LINENO" 5
+  else
+    as_fn_error $? "Default SSL backend requires SSL!" "$LINENO" 5
+  fi
+elif test yes = "$VALID_DEFAULT_SSL_BACKEND"
+then
+
+printf "%s\n" "#define CURL_DEFAULT_SSL_BACKEND \"$DEFAULT_SSL_BACKEND\"" >>confdefs.h
+
+fi
+
+
+if test -n "$check_for_ca_bundle"; then
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking default CA cert bundle/path" >&5
+printf %s "checking default CA cert bundle/path... " >&6; }
+
+
+# Check whether --with-ca-bundle was given.
+if test ${with_ca_bundle+y}
+then :
+  withval=$with_ca_bundle;
+    want_ca="$withval"
+    if test "x$want_ca" = "xyes"; then
+      as_fn_error $? "--with-ca-bundle=FILE requires a path to the CA bundle" "$LINENO" 5
+    fi
+
+else $as_nop
+   want_ca="unset"
+fi
+
+
+# Check whether --with-ca-path was given.
+if test ${with_ca_path+y}
+then :
+  withval=$with_ca_path;
+    want_capath="$withval"
+    if test "x$want_capath" = "xyes"; then
+      as_fn_error $? "--with-ca-path=DIRECTORY requires a path to the CA path directory" "$LINENO" 5
+    fi
+
+else $as_nop
+   want_capath="unset"
+fi
+
+
+  ca_warning="   (warning: certs not found)"
+  capath_warning="   (warning: certs not found)"
+  check_capath=""
+
+  if test "x$want_ca" != "xno" -a "x$want_ca" != "xunset" -a \
+          "x$want_capath" != "xno" -a "x$want_capath" != "xunset"; then
+        ca="$want_ca"
+    capath="$want_capath"
+  elif test "x$want_ca" != "xno" -a "x$want_ca" != "xunset"; then
+        ca="$want_ca"
+    capath="no"
+  elif test "x$want_capath" != "xno" -a "x$want_capath" != "xunset"; then
+        if test "x$OPENSSL_ENABLED" != "x1" -a "x$GNUTLS_ENABLED" != "x1" -a "x$MBEDTLS_ENABLED" != "x1"; then
+      as_fn_error $? "--with-ca-path only works with OpenSSL, GnuTLS or mbedTLS" "$LINENO" 5
+    fi
+    capath="$want_capath"
+    ca="no"
+  else
+            ca="no"
+    capath="no"
+    if test "x$cross_compiling" != "xyes"; then
+                  if test "x$want_ca" = "xunset"; then
+                                if test "x$prefix" != xNONE; then
+          cac="${prefix}/share/curl/curl-ca-bundle.crt"
+        else
+          cac="$ac_default_prefix/share/curl/curl-ca-bundle.crt"
+        fi
+
+        for a in /etc/ssl/certs/ca-certificates.crt \
+                 /etc/pki/tls/certs/ca-bundle.crt \
+                 /usr/share/ssl/certs/ca-bundle.crt \
+                 /usr/local/share/certs/ca-root-nss.crt \
+                 /etc/ssl/cert.pem \
+                 "$cac"; do
+          if test -f "$a"; then
+            ca="$a"
+            break
+          fi
+        done
+      fi
+      if test "x$want_capath" = "xunset" -a "x$ca" = "xno" -a \
+              "x$OPENSSL_ENABLED" = "x1"; then
+        check_capath="/etc/ssl/certs/"
+      fi
+    else
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: skipped the ca-cert path detection when cross-compiling" >&5
+printf "%s\n" "$as_me: WARNING: skipped the ca-cert path detection when cross-compiling" >&2;}
+    fi
+  fi
+
+  if test "x$ca" = "xno" || test -f "$ca"; then
+    ca_warning=""
+  fi
+
+  if test "x$capath" != "xno"; then
+    check_capath="$capath"
+  fi
+
+  if test ! -z "$check_capath"; then
+    for a in "$check_capath"; do
+      if test -d "$a" && ls "$a"/[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f].0 >/dev/null 2>/dev/null; then
+        if test "x$capath" = "xno"; then
+          capath="$a"
+        fi
+        capath_warning=""
+        break
+      fi
+    done
+  fi
+
+  if test "x$capath" = "xno"; then
+    capath_warning=""
+  fi
+
+  if test "x$ca" != "xno"; then
+    CURL_CA_BUNDLE='"'$ca'"'
+
+printf "%s\n" "#define CURL_CA_BUNDLE \"$ca\"" >>confdefs.h
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ca" >&5
+printf "%s\n" "$ca" >&6; }
+  fi
+  if test "x$capath" != "xno"; then
+    CURL_CA_PATH="\"$capath\""
+
+printf "%s\n" "#define CURL_CA_PATH \"$capath\"" >>confdefs.h
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $capath (capath)" >&5
+printf "%s\n" "$capath (capath)" >&6; }
+  fi
+  if test "x$ca" = "xno" && test "x$capath" = "xno"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use builtin CA store of SSL library" >&5
+printf %s "checking whether to use builtin CA store of SSL library... " >&6; }
+
+# Check whether --with-ca-fallback was given.
+if test ${with_ca_fallback+y}
+then :
+  withval=$with_ca_fallback;
+    if test "x$with_ca_fallback" != "xyes" -a "x$with_ca_fallback" != "xno"; then
+      as_fn_error $? "--with-ca-fallback only allows yes or no as parameter" "$LINENO" 5
+    fi
+
+else $as_nop
+   with_ca_fallback="no"
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_ca_fallback" >&5
+printf "%s\n" "$with_ca_fallback" >&6; }
+  if test "x$with_ca_fallback" = "xyes"; then
+    if test "x$OPENSSL_ENABLED" != "x1" -a "x$GNUTLS_ENABLED" != "x1"; then
+      as_fn_error $? "--with-ca-fallback only works with OpenSSL or GnuTLS" "$LINENO" 5
+    fi
+
+printf "%s\n" "#define CURL_CA_FALLBACK 1" >>confdefs.h
+
+  fi
+
+fi
+
+
+
+# Check whether --with-libpsl was given.
+if test ${with_libpsl+y}
+then :
+  withval=$with_libpsl; with_libpsl=$withval
+else $as_nop
+  with_libpsl=yes
+fi
+
+if test $with_libpsl != "no"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing psl_builtin" >&5
+printf %s "checking for library containing psl_builtin... " >&6; }
+if test ${ac_cv_search_psl_builtin+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char psl_builtin ();
+int main (void)
+{
+return psl_builtin ();
+ ;
+ return 0;
+}
+_ACEOF
+for ac_lib in '' psl
+do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_search_psl_builtin=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext
+  if test ${ac_cv_search_psl_builtin+y}
+then :
+  break
+fi
+done
+if test ${ac_cv_search_psl_builtin+y}
+then :
+
+else $as_nop
+  ac_cv_search_psl_builtin=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_psl_builtin" >&5
+printf "%s\n" "$ac_cv_search_psl_builtin" >&6; }
+ac_res=$ac_cv_search_psl_builtin
+if test "$ac_res" != no
+then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  curl_psl_msg="enabled";
+
+printf "%s\n" "#define USE_LIBPSL 1" >>confdefs.h
+
+
+else $as_nop
+  curl_psl_msg="no      (libpsl not found)";
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: libpsl was not found" >&5
+printf "%s\n" "$as_me: WARNING: libpsl was not found" >&2;}
+
+
+fi
+
+fi
+ if test "$curl_psl_msg" = "enabled"; then
+  USE_LIBPSL_TRUE=
+  USE_LIBPSL_FALSE='#'
+else
+  USE_LIBPSL_TRUE='#'
+  USE_LIBPSL_FALSE=
+fi
+
+
+
+
+
+# Check whether --with-libgsasl was given.
+if test ${with_libgsasl+y}
+then :
+  withval=$with_libgsasl; with_libgsasl=$withval
+else $as_nop
+  with_libgsasl=yes
+fi
+
+if test $with_libgsasl != "no"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing gsasl_init" >&5
+printf %s "checking for library containing gsasl_init... " >&6; }
+if test ${ac_cv_search_gsasl_init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char gsasl_init ();
+int main (void)
+{
+return gsasl_init ();
+ ;
+ return 0;
+}
+_ACEOF
+for ac_lib in '' gsasl
+do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_search_gsasl_init=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext
+  if test ${ac_cv_search_gsasl_init+y}
+then :
+  break
+fi
+done
+if test ${ac_cv_search_gsasl_init+y}
+then :
+
+else $as_nop
+  ac_cv_search_gsasl_init=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gsasl_init" >&5
+printf "%s\n" "$ac_cv_search_gsasl_init" >&6; }
+ac_res=$ac_cv_search_gsasl_init
+if test "$ac_res" != no
+then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  curl_gsasl_msg="enabled";
+
+printf "%s\n" "#define USE_GSASL 1" >>confdefs.h
+
+
+else $as_nop
+  curl_gsasl_msg="no      (libgsasl not found)";
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: libgsasl was not found" >&5
+printf "%s\n" "$as_me: WARNING: libgsasl was not found" >&2;}
+
+
+fi
+
+fi
+ if test "$curl_gsasl_msg" = "enabled"; then
+  USE_GSASL_TRUE=
+  USE_GSASL_FALSE='#'
+else
+  USE_GSASL_TRUE='#'
+  USE_GSASL_FALSE=
+fi
+
+
+
+# Check whether --with-libmetalink was given.
+if test ${with_libmetalink+y}
+then :
+  withval=$with_libmetalink; as_fn_error $? "--with-libmetalink no longer works!" "$LINENO" 5
+fi
+
+
+
+OPT_LIBSSH2=off
+
+# Check whether --with-libssh2 was given.
+if test ${with_libssh2+y}
+then :
+  withval=$with_libssh2; OPT_LIBSSH2=$withval
+else $as_nop
+  OPT_LIBSSH2=no
+fi
+
+
+
+OPT_LIBSSH=off
+
+# Check whether --with-libssh was given.
+if test ${with_libssh+y}
+then :
+  withval=$with_libssh; OPT_LIBSSH=$withval
+else $as_nop
+  OPT_LIBSSH=no
+fi
+
+
+OPT_WOLFSSH=off
+
+# Check whether --with-wolfssh was given.
+if test ${with_wolfssh+y}
+then :
+  withval=$with_wolfssh; OPT_WOLFSSH=$withval
+else $as_nop
+  OPT_WOLFSSH=no
+fi
+
+
+if test X"$OPT_LIBSSH2" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBSSH2" in
+  yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libssh2 options with pkg-config" >&5
+printf %s "checking for libssh2 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libssh2 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_SSH2=`$PKGCONFIG --libs libssh2`
+      LD_SSH2=`$PKGCONFIG --libs-only-L libssh2`
+      CPP_SSH2=`$PKGCONFIG --cflags-only-I libssh2`
+      version=`$PKGCONFIG --modversion libssh2`
+      DIR_SSH2=`echo $LD_SSH2 | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+        ;;
+  *)
+        PREFIX_SSH2=$OPT_LIBSSH2
+    ;;
+  esac
+
+    if test -n "$PREFIX_SSH2"; then
+    LIB_SSH2="-lssh2"
+    LD_SSH2=-L${PREFIX_SSH2}/lib$libsuff
+    CPP_SSH2=-I${PREFIX_SSH2}/include
+    DIR_SSH2=${PREFIX_SSH2}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_SSH2"
+  CPPFLAGS="$CPPFLAGS $CPP_SSH2"
+  LIBS="$LIB_SSH2 $LIBS"
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libssh2_session_block_directions in -lssh2" >&5
+printf %s "checking for libssh2_session_block_directions in -lssh2... " >&6; }
+if test ${ac_cv_lib_ssh2_libssh2_session_block_directions+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lssh2  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char libssh2_session_block_directions ();
+int main (void)
+{
+return libssh2_session_block_directions ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ssh2_libssh2_session_block_directions=yes
+else $as_nop
+  ac_cv_lib_ssh2_libssh2_session_block_directions=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssh2_libssh2_session_block_directions" >&5
+printf "%s\n" "$ac_cv_lib_ssh2_libssh2_session_block_directions" >&6; }
+if test "x$ac_cv_lib_ssh2_libssh2_session_block_directions" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSH2 1" >>confdefs.h
+
+  LIBS="-lssh2 $LIBS"
+
+fi
+
+
+         for ac_header in libssh2.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "libssh2.h" "ac_cv_header_libssh2_h" "$ac_includes_default"
+if test "x$ac_cv_header_libssh2_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSH2_H 1" >>confdefs.h
+ curl_ssh_msg="enabled (libSSH2)"
+    LIBSSH2_ENABLED=1
+
+printf "%s\n" "#define USE_LIBSSH2 1" >>confdefs.h
+
+    USE_LIBSSH2=1
+
+
+fi
+
+done
+
+  if test X"$OPT_LIBSSH2" != Xoff &&
+     test "$LIBSSH2_ENABLED" != "1"; then
+    as_fn_error $? "libSSH2 libs and/or directories were not found where specified!" "$LINENO" 5
+  fi
+
+  if test "$LIBSSH2_ENABLED" = "1"; then
+    if test -n "$DIR_SSH2"; then
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_SSH2"
+         export CURL_LIBRARY_PATH
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_SSH2 to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_SSH2 to CURL_LIBRARY_PATH" >&6;}
+       fi
+    fi
+  else
+        LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+elif test X"$OPT_LIBSSH" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBSSH" in
+  yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libssh options with pkg-config" >&5
+printf %s "checking for libssh options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libssh >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_SSH=`$PKGCONFIG --libs-only-l libssh`
+      LD_SSH=`$PKGCONFIG --libs-only-L libssh`
+      CPP_SSH=`$PKGCONFIG --cflags-only-I libssh`
+      version=`$PKGCONFIG --modversion libssh`
+      DIR_SSH=`echo $LD_SSH | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+        ;;
+  *)
+        PREFIX_SSH=$OPT_LIBSSH
+    ;;
+  esac
+
+    if test -n "$PREFIX_SSH"; then
+    LIB_SSH="-lssh"
+    LD_SSH=-L${PREFIX_SSH}/lib$libsuff
+    CPP_SSH=-I${PREFIX_SSH}/include
+    DIR_SSH=${PREFIX_SSH}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_SSH"
+  CPPFLAGS="$CPPFLAGS $CPP_SSH"
+  LIBS="$LIB_SSH $LIBS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ssh_new in -lssh" >&5
+printf %s "checking for ssh_new in -lssh... " >&6; }
+if test ${ac_cv_lib_ssh_ssh_new+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lssh  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ssh_new ();
+int main (void)
+{
+return ssh_new ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ssh_ssh_new=yes
+else $as_nop
+  ac_cv_lib_ssh_ssh_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssh_ssh_new" >&5
+printf "%s\n" "$ac_cv_lib_ssh_ssh_new" >&6; }
+if test "x$ac_cv_lib_ssh_ssh_new" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSH 1" >>confdefs.h
+
+  LIBS="-lssh $LIBS"
+
+fi
+
+
+         for ac_header in libssh/libssh.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "libssh/libssh.h" "ac_cv_header_libssh_libssh_h" "$ac_includes_default"
+if test "x$ac_cv_header_libssh_libssh_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBSSH_LIBSSH_H 1" >>confdefs.h
+ curl_ssh_msg="enabled (libSSH)"
+    LIBSSH_ENABLED=1
+
+printf "%s\n" "#define USE_LIBSSH 1" >>confdefs.h
+
+    USE_LIBSSH=1
+
+
+fi
+
+done
+
+  if test X"$OPT_LIBSSH" != Xoff &&
+     test "$LIBSSH_ENABLED" != "1"; then
+    as_fn_error $? "libSSH libs and/or directories were not found where specified!" "$LINENO" 5
+  fi
+
+  if test "$LIBSSH_ENABLED" = "1"; then
+    if test -n "$DIR_SSH"; then
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_SSH"
+         export CURL_LIBRARY_PATH
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_SSH to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_SSH to CURL_LIBRARY_PATH" >&6;}
+       fi
+    fi
+  else
+        LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+elif test X"$OPT_WOLFSSH" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+  if test "$OPT_WOLFSSH" != yes; then
+     WOLFCONFIG="$OPT_WOLFSSH/bin/wolfssh-config"
+     LDFLAGS="$LDFLAGS `$WOLFCONFIG --libs`"
+     CPPFLAGS="$CPPFLAGS `$WOLFCONFIG --cflags`"
+  fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for wolfSSH_Init in -lwolfssh" >&5
+printf %s "checking for wolfSSH_Init in -lwolfssh... " >&6; }
+if test ${ac_cv_lib_wolfssh_wolfSSH_Init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lwolfssh  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char wolfSSH_Init ();
+int main (void)
+{
+return wolfSSH_Init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_wolfssh_wolfSSH_Init=yes
+else $as_nop
+  ac_cv_lib_wolfssh_wolfSSH_Init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_wolfssh_wolfSSH_Init" >&5
+printf "%s\n" "$ac_cv_lib_wolfssh_wolfSSH_Init" >&6; }
+if test "x$ac_cv_lib_wolfssh_wolfSSH_Init" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBWOLFSSH 1" >>confdefs.h
+
+  LIBS="-lwolfssh $LIBS"
+
+fi
+
+
+         for ac_header in wolfssh/ssh.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "wolfssh/ssh.h" "ac_cv_header_wolfssh_ssh_h" "$ac_includes_default"
+if test "x$ac_cv_header_wolfssh_ssh_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_WOLFSSH_SSH_H 1" >>confdefs.h
+ curl_ssh_msg="enabled (wolfSSH)"
+    WOLFSSH_ENABLED=1
+
+printf "%s\n" "#define USE_WOLFSSH 1" >>confdefs.h
+
+    USE_WOLFSSH=1
+
+
+fi
+
+done
+
+fi
+
+
+OPT_LIBRTMP=off
+
+# Check whether --with-librtmp was given.
+if test ${with_librtmp+y}
+then :
+  withval=$with_librtmp; OPT_LIBRTMP=$withval
+fi
+
+
+if test X"$OPT_LIBRTMP" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBRTMP" in
+  yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for librtmp options with pkg-config" >&5
+printf %s "checking for librtmp options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists librtmp >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_RTMP=`$PKGCONFIG --libs-only-l librtmp`
+      LD_RTMP=`$PKGCONFIG --libs-only-L librtmp`
+      CPP_RTMP=`$PKGCONFIG --cflags-only-I librtmp`
+      version=`$PKGCONFIG --modversion librtmp`
+      DIR_RTMP=`echo $LD_RTMP | $SED -e 's/^-L//'`
+    else
+                  as_fn_error $? "--librtmp was specified but could not find librtmp pkgconfig file." "$LINENO" 5
+    fi
+
+    ;;
+  off)
+        LIB_RTMP="-lrtmp"
+    ;;
+  *)
+        LIB_RTMP="-lrtmp"
+    PREFIX_RTMP=$OPT_LIBRTMP
+    ;;
+  esac
+
+    if test -n "$PREFIX_RTMP"; then
+    LD_RTMP=-L${PREFIX_RTMP}/lib$libsuff
+    CPP_RTMP=-I${PREFIX_RTMP}/include
+    DIR_RTMP=${PREFIX_RTMP}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_RTMP"
+  CPPFLAGS="$CPPFLAGS $CPP_RTMP"
+  LIBS="$LIB_RTMP $LIBS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for RTMP_Init in -lrtmp" >&5
+printf %s "checking for RTMP_Init in -lrtmp... " >&6; }
+if test ${ac_cv_lib_rtmp_RTMP_Init+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lrtmp  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char RTMP_Init ();
+int main (void)
+{
+return RTMP_Init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_rtmp_RTMP_Init=yes
+else $as_nop
+  ac_cv_lib_rtmp_RTMP_Init=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rtmp_RTMP_Init" >&5
+printf "%s\n" "$ac_cv_lib_rtmp_RTMP_Init" >&6; }
+if test "x$ac_cv_lib_rtmp_RTMP_Init" = xyes
+then :
+
+            for ac_header in librtmp/rtmp.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "librtmp/rtmp.h" "ac_cv_header_librtmp_rtmp_h" "$ac_includes_default"
+if test "x$ac_cv_header_librtmp_rtmp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBRTMP_RTMP_H 1" >>confdefs.h
+ curl_rtmp_msg="enabled (librtmp)"
+        LIBRTMP_ENABLED=1
+
+printf "%s\n" "#define USE_LIBRTMP 1" >>confdefs.h
+
+        USE_LIBRTMP=1
+
+
+fi
+
+done
+
+else $as_nop
+        LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+
+fi
+
+
+  if test X"$OPT_LIBRTMP" != Xoff &&
+     test "$LIBRTMP_ENABLED" != "1"; then
+    as_fn_error $? "librtmp libs and/or directories were not found where specified!" "$LINENO" 5
+  fi
+
+fi
+
+
+versioned_symbols_flavour=
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether versioned symbols are wanted" >&5
+printf %s "checking whether versioned symbols are wanted... " >&6; }
+# Check whether --enable-versioned-symbols was given.
+if test ${enable_versioned_symbols+y}
+then :
+  enableval=$enable_versioned_symbols;  case "$enableval" in
+  yes) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if libraries can be versioned" >&5
+printf %s "checking if libraries can be versioned... " >&6; }
+    GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
+    if test -z "$GLD"; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: You need an ld version supporting the --version-script option" >&5
+printf "%s\n" "$as_me: WARNING: You need an ld version supporting the --version-script option" >&2;}
+    else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        if test "x$CURL_WITH_MULTI_SSL" = "x1"; then
+          versioned_symbols_flavour="MULTISSL_"
+        elif test "x$OPENSSL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="OPENSSL_"
+        elif test "x$GNUTLS_ENABLED" = "x1"; then
+          versioned_symbols_flavour="GNUTLS_"
+        elif test "x$NSS_ENABLED" = "x1"; then
+          versioned_symbols_flavour="NSS_"
+        elif test "x$WOLFSSL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="WOLFSSL_"
+        elif test "x$SCHANNEL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="SCHANNEL_"
+        elif test "x$SECURETRANSPORT_ENABLED" = "x1"; then
+          versioned_symbols_flavour="SECURE_TRANSPORT_"
+        else
+          versioned_symbols_flavour=""
+        fi
+        versioned_symbols="yes"
+    fi
+    ;;
+
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    ;;
+  esac
+
+else $as_nop
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+
+fi
+
+
+CURL_LT_SHLIB_VERSIONED_FLAVOUR="$versioned_symbols_flavour"
+
+ if test "x$versioned_symbols" = 'xyes'; then
+  CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_TRUE=
+  CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_FALSE='#'
+else
+  CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_TRUE='#'
+  CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_FALSE=
+fi
+
+
+CURL_PLIST_VERSION="$CURLVERSION"
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable Windows native IDN (Windows native builds only)" >&5
+printf %s "checking whether to enable Windows native IDN (Windows native builds only)... " >&6; }
+OPT_WINIDN="default"
+
+# Check whether --with-winidn was given.
+if test ${with_winidn+y}
+then :
+  withval=$with_winidn; OPT_WINIDN=$withval
+fi
+
+case "$OPT_WINIDN" in
+  no|default)
+        want_winidn="no"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    ;;
+  yes)
+        want_winidn="yes"
+    want_winidn_path="default"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    ;;
+  *)
+        want_winidn="yes"
+    want_winidn_path="$withval"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes ($withval)" >&5
+printf "%s\n" "yes ($withval)" >&6; }
+    ;;
+esac
+
+if test "$want_winidn" = "yes"; then
+    clean_CFLAGS="$CFLAGS"
+  clean_CPPFLAGS="$CPPFLAGS"
+  clean_LDFLAGS="$LDFLAGS"
+  clean_LIBS="$LIBS"
+  WINIDN_LIBS="-lnormaliz"
+  WINIDN_CPPFLAGS=""
+  #
+  if test "$want_winidn_path" != "default"; then
+            WINIDN_LDFLAGS="-L$want_winidn_path/lib$libsuff"
+    WINIDN_CPPFLAGS="-I$want_winidn_path/include"
+    WINIDN_DIR="$want_winidn_path/lib$libsuff"
+  fi
+  #
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      #include 
+
+int main (void)
+{
+
+      #if (WINVER < 0x600) && (_WIN32_WINNT < 0x600)
+      #error
+      #endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+
+else $as_nop
+
+     CFLAGS=`echo $CFLAGS | $SED -e 's/-DWINVER=[^ ]*//g'`
+     CFLAGS=`echo $CFLAGS | $SED -e 's/-D_WIN32_WINNT=[^ ]*//g'`
+     CPPFLAGS=`echo $CPPFLAGS | $SED -e 's/-DWINVER=[^ ]*//g'`
+     CPPFLAGS=`echo $CPPFLAGS | $SED -e 's/-D_WIN32_WINNT=[^ ]*//g'`
+     WINIDN_CPPFLAGS="$WINIDN_CPPFLAGS -DWINVER=0x0600"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  #
+  CPPFLAGS="$CPPFLAGS $WINIDN_CPPFLAGS"
+  LDFLAGS="$LDFLAGS $WINIDN_LDFLAGS"
+  LIBS="$WINIDN_LIBS $LIBS"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IdnToUnicode can be linked" >&5
+printf %s "checking if IdnToUnicode can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      #include 
+
+int main (void)
+{
+
+      IdnToUnicode(0, NULL, 0, NULL, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_winidn="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_winidn="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_winidn" = "yes"; then
+
+printf "%s\n" "#define USE_WIN32_IDN 1" >>confdefs.h
+
+
+printf "%s\n" "#define WANT_IDN_PROTOTYPES 1" >>confdefs.h
+
+    IDN_ENABLED=1
+
+    curl_idn_msg="enabled (Windows-native)"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find libraries for IDN support: IDN disabled" >&5
+printf "%s\n" "$as_me: WARNING: Cannot find libraries for IDN support: IDN disabled" >&2;}
+    CFLAGS="$clean_CFLAGS"
+    CPPFLAGS="$clean_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS"
+    LIBS="$clean_LIBS"
+  fi
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build with libidn2" >&5
+printf %s "checking whether to build with libidn2... " >&6; }
+OPT_IDN="default"
+
+# Check whether --with-libidn2 was given.
+if test ${with_libidn2+y}
+then :
+  withval=$with_libidn2; OPT_IDN=$withval
+fi
+
+case "$OPT_IDN" in
+  no)
+        want_idn="no"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    ;;
+  default)
+        want_idn="yes"
+    want_idn_path="default"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: (assumed) yes" >&5
+printf "%s\n" "(assumed) yes" >&6; }
+    ;;
+  yes)
+        want_idn="yes"
+    want_idn_path="default"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    ;;
+  *)
+        want_idn="yes"
+    want_idn_path="$withval"
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes ($withval)" >&5
+printf "%s\n" "yes ($withval)" >&6; }
+    ;;
+esac
+
+if test "$want_idn" = "yes"; then
+    clean_CPPFLAGS="$CPPFLAGS"
+  clean_LDFLAGS="$LDFLAGS"
+  clean_LIBS="$LIBS"
+  PKGCONFIG="no"
+  #
+  if test "$want_idn_path" != "default"; then
+        IDN_PCDIR="$want_idn_path/lib$libsuff/pkgconfig"
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libidn2 options with pkg-config" >&5
+printf %s "checking for libidn2 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$IDN_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$IDN_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libidn2 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`
+    if test -n "$IDN_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$IDN_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+      IDN_LDFLAGS=`
+    if test -n "$IDN_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$IDN_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+      IDN_CPPFLAGS=`
+    if test -n "$IDN_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$IDN_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/^-L//'`
+    else
+            IDN_LIBS="-lidn2"
+      IDN_LDFLAGS="-L$want_idn_path/lib$libsuff"
+      IDN_CPPFLAGS="-I$want_idn_path/include"
+      IDN_DIR="$want_idn_path/lib$libsuff"
+    fi
+  else
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libidn2 options with pkg-config" >&5
+printf %s "checking for libidn2 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libidn2 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`$PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+      IDN_LDFLAGS=`$PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+      IDN_CPPFLAGS=`$PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/^-L//'`
+    else
+            IDN_LIBS="-lidn2"
+    fi
+  fi
+  #
+  if test "$PKGCONFIG" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: IDN_LIBS: \"$IDN_LIBS\"" >&5
+printf "%s\n" "$as_me: pkg-config: IDN_LIBS: \"$IDN_LIBS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: IDN_LDFLAGS: \"$IDN_LDFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: IDN_LDFLAGS: \"$IDN_LDFLAGS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: IDN_CPPFLAGS: \"$IDN_CPPFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: IDN_CPPFLAGS: \"$IDN_CPPFLAGS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: IDN_DIR: \"$IDN_DIR\"" >&5
+printf "%s\n" "$as_me: pkg-config: IDN_DIR: \"$IDN_DIR\"" >&6;}
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: IDN_LIBS: \"$IDN_LIBS\"" >&5
+printf "%s\n" "$as_me: IDN_LIBS: \"$IDN_LIBS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: IDN_LDFLAGS: \"$IDN_LDFLAGS\"" >&5
+printf "%s\n" "$as_me: IDN_LDFLAGS: \"$IDN_LDFLAGS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: IDN_CPPFLAGS: \"$IDN_CPPFLAGS\"" >&5
+printf "%s\n" "$as_me: IDN_CPPFLAGS: \"$IDN_CPPFLAGS\"" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: IDN_DIR: \"$IDN_DIR\"" >&5
+printf "%s\n" "$as_me: IDN_DIR: \"$IDN_DIR\"" >&6;}
+  fi
+  #
+  CPPFLAGS="$CPPFLAGS $IDN_CPPFLAGS"
+  LDFLAGS="$LDFLAGS $IDN_LDFLAGS"
+  LIBS="$IDN_LIBS $LIBS"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if idn2_lookup_ul can be linked" >&5
+printf %s "checking if idn2_lookup_ul can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define idn2_lookup_ul innocuous_idn2_lookup_ul
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef idn2_lookup_ul
+#ifdef __cplusplus
+extern "C"
+#endif
+char idn2_lookup_ul ();
+#if defined __stub_idn2_lookup_ul || defined __stub___idn2_lookup_ul
+choke me
+#endif
+
+int main (void)
+{
+return idn2_lookup_ul ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_libidn="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_libidn="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  ac_fn_c_check_header_compile "$LINENO" "idn2.h" "ac_cv_header_idn2_h" "$ac_includes_default"
+if test "x$ac_cv_header_idn2_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_IDN2_H 1" >>confdefs.h
+
+fi
+
+
+  if test "$tst_links_libidn" = "yes"; then
+
+printf "%s\n" "#define HAVE_LIBIDN2 1" >>confdefs.h
+
+
+    IDN_ENABLED=1
+
+    curl_idn_msg="enabled (libidn2)"
+    if test -n "$IDN_DIR" -a "x$cross_compiling" != "xyes"; then
+      CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$IDN_DIR"
+      export CURL_LIBRARY_PATH
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $IDN_DIR to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $IDN_DIR to CURL_LIBRARY_PATH" >&6;}
+    fi
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find libraries for IDN support: IDN disabled" >&5
+printf "%s\n" "$as_me: WARNING: Cannot find libraries for IDN support: IDN disabled" >&2;}
+    CPPFLAGS="$clean_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS"
+    LIBS="$clean_LIBS"
+  fi
+fi
+
+
+OPT_H2="yes"
+
+if test "x$disable_http" = "xyes" -o X"$want_hyper" != Xno; then
+  # without HTTP or with Hyper, nghttp2 is no use
+  OPT_H2="no"
+fi
+
+
+# Check whether --with-nghttp2 was given.
+if test ${with_nghttp2+y}
+then :
+  withval=$with_nghttp2; OPT_H2=$withval
+fi
+
+case "$OPT_H2" in
+  no)
+        want_nghttp2="no"
+    ;;
+  yes)
+        want_nghttp2="default"
+    want_nghttp2_path=""
+    want_nghttp2_pkg_config_path=""
+    ;;
+  *)
+        want_nghttp2="yes"
+    want_nghttp2_path="$withval"
+    want_nghttp2_pkg_config_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+if test X"$want_nghttp2" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libnghttp2 options with pkg-config" >&5
+printf %s "checking for libnghttp2 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_nghttp2_pkg_config_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp2_pkg_config_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libnghttp2 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_H2=`
+    if test -n "$want_nghttp2_pkg_config_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp2_pkg_config_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l libnghttp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_H2" >&5
+printf "%s\n" "$as_me: -l is $LIB_H2" >&6;}
+
+    CPP_H2=`
+    if test -n "$want_nghttp2_pkg_config_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp2_pkg_config_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I libnghttp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_H2" >&5
+printf "%s\n" "$as_me: -I is $CPP_H2" >&6;}
+
+    LD_H2=`
+    if test -n "$want_nghttp2_pkg_config_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp2_pkg_config_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L libnghttp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_H2" >&5
+printf "%s\n" "$as_me: -L is $LD_H2" >&6;}
+
+    DIR_H2=`echo $LD_H2 | $SED -e 's/^-L//'`
+  elif test x"$want_nghttp2_path" != x; then
+    LIB_H2="-lnghttp2"
+    LD_H2=-L${want_nghttp2_path}/lib$libsuff
+    CPP_H2=-I${want_nghttp2_path}/include
+    DIR_H2=${want_nghttp2_path}/lib$libsuff
+  elif test X"$want_nghttp2" != Xdefault; then
+            as_fn_error $? "--with-nghttp2 was specified but could not find libnghttp2 pkg-config file." "$LINENO" 5
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_H2"
+  CPPFLAGS="$CPPFLAGS $CPP_H2"
+  LIBS="$LIB_H2 $LIBS"
+
+  # use nghttp2_session_set_local_window_size to require nghttp2
+  # >= 1.12.0
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nghttp2_session_set_local_window_size in -lnghttp2" >&5
+printf %s "checking for nghttp2_session_set_local_window_size in -lnghttp2... " >&6; }
+if test ${ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnghttp2  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char nghttp2_session_set_local_window_size ();
+int main (void)
+{
+return nghttp2_session_set_local_window_size ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size=yes
+else $as_nop
+  ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size" >&5
+printf "%s\n" "$ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size" >&6; }
+if test "x$ac_cv_lib_nghttp2_nghttp2_session_set_local_window_size" = xyes
+then :
+
+            for ac_header in nghttp2/nghttp2.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "nghttp2/nghttp2.h" "ac_cv_header_nghttp2_nghttp2_h" "$ac_includes_default"
+if test "x$ac_cv_header_nghttp2_nghttp2_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NGHTTP2_NGHTTP2_H 1" >>confdefs.h
+ curl_h2_msg="enabled (nghttp2)"
+        NGHTTP2_ENABLED=1
+
+printf "%s\n" "#define USE_NGHTTP2 1" >>confdefs.h
+
+        USE_NGHTTP2=1
+
+
+fi
+
+done
+
+     CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_H2"
+     export CURL_LIBRARY_PATH
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_H2 to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_H2 to CURL_LIBRARY_PATH" >&6;}
+
+else $as_nop
+        LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+
+fi
+
+fi
+
+
+OPT_TCP2="yes"
+
+if test "x$disable_http" = "xyes"; then
+  # without HTTP, ngtcp2 is no use
+  OPT_TCP2="no"
+fi
+
+
+# Check whether --with-ngtcp2 was given.
+if test ${with_ngtcp2+y}
+then :
+  withval=$with_ngtcp2; OPT_TCP2=$withval
+fi
+
+case "$OPT_TCP2" in
+  no)
+        want_tcp2="no"
+    ;;
+  yes)
+        want_tcp2="default"
+    want_tcp2_path=""
+    ;;
+  *)
+        want_tcp2="yes"
+    want_tcp2_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+curl_tcp2_msg="no      (--with-ngtcp2)"
+if test X"$want_tcp2" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libngtcp2 options with pkg-config" >&5
+printf %s "checking for libngtcp2 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libngtcp2 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_TCP2=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l libngtcp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_TCP2" >&5
+printf "%s\n" "$as_me: -l is $LIB_TCP2" >&6;}
+
+    CPP_TCP2=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I libngtcp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_TCP2" >&5
+printf "%s\n" "$as_me: -I is $CPP_TCP2" >&6;}
+
+    LD_TCP2=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L libngtcp2`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_TCP2" >&5
+printf "%s\n" "$as_me: -L is $LD_TCP2" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_TCP2"
+    CPPFLAGS="$CPPFLAGS $CPP_TCP2"
+    LIBS="$LIB_TCP2 $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_TCP2=`echo $LD_TCP2 | $SED -e 's/^-L//'`
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ngtcp2_conn_client_new_versioned in -lngtcp2" >&5
+printf %s "checking for ngtcp2_conn_client_new_versioned in -lngtcp2... " >&6; }
+if test ${ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lngtcp2  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ngtcp2_conn_client_new_versioned ();
+int main (void)
+{
+return ngtcp2_conn_client_new_versioned ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned=yes
+else $as_nop
+  ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned" >&5
+printf "%s\n" "$ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned" >&6; }
+if test "x$ac_cv_lib_ngtcp2_ngtcp2_conn_client_new_versioned" = xyes
+then :
+
+              for ac_header in ngtcp2/ngtcp2.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "ngtcp2/ngtcp2.h" "ac_cv_header_ngtcp2_ngtcp2_h" "$ac_includes_default"
+if test "x$ac_cv_header_ngtcp2_ngtcp2_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NGTCP2_NGTCP2_H 1" >>confdefs.h
+ NGTCP2_ENABLED=1
+
+printf "%s\n" "#define USE_NGTCP2 1" >>confdefs.h
+
+          USE_NGTCP2=1
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_TCP2"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_TCP2 to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_TCP2 to CURL_LIBRARY_PATH" >&6;}
+
+fi
+
+done
+
+else $as_nop
+          LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+
+fi
+
+
+  else
+        if test X"$want_tcp2" != Xdefault; then
+                  as_fn_error $? "--with-ngtcp2 was specified but could not find ngtcp2 pkg-config file." "$LINENO" 5
+    fi
+  fi
+
+fi
+
+if test "x$NGTCP2_ENABLED" = "x1" -a "x$OPENSSL_ENABLED" = "x1"; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libngtcp2_crypto_openssl options with pkg-config" >&5
+printf %s "checking for libngtcp2_crypto_openssl options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libngtcp2_crypto_openssl >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGTCP2_CRYPTO_OPENSSL=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l libngtcp2_crypto_openssl`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_NGTCP2_CRYPTO_OPENSSL" >&5
+printf "%s\n" "$as_me: -l is $LIB_NGTCP2_CRYPTO_OPENSSL" >&6;}
+
+    CPP_NGTCP2_CRYPTO_OPENSSL=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I libngtcp2_crypto_openssl`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_NGTCP2_CRYPTO_OPENSSL" >&5
+printf "%s\n" "$as_me: -I is $CPP_NGTCP2_CRYPTO_OPENSSL" >&6;}
+
+    LD_NGTCP2_CRYPTO_OPENSSL=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L libngtcp2_crypto_openssl`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_NGTCP2_CRYPTO_OPENSSL" >&5
+printf "%s\n" "$as_me: -L is $LD_NGTCP2_CRYPTO_OPENSSL" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_NGTCP2_CRYPTO_OPENSSL"
+    CPPFLAGS="$CPPFLAGS $CPP_NGTCP2_CRYPTO_OPENSSL"
+    LIBS="$LIB_NGTCP2_CRYPTO_OPENSSL $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGTCP2_CRYPTO_OPENSSL=`echo $LD_NGTCP2_CRYPTO_OPENSSL | $SED -e 's/^-L//'`
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ngtcp2_crypto_recv_client_initial_cb in -lngtcp2_crypto_openssl" >&5
+printf %s "checking for ngtcp2_crypto_recv_client_initial_cb in -lngtcp2_crypto_openssl... " >&6; }
+if test ${ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lngtcp2_crypto_openssl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ngtcp2_crypto_recv_client_initial_cb ();
+int main (void)
+{
+return ngtcp2_crypto_recv_client_initial_cb ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb=yes
+else $as_nop
+  ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb" >&5
+printf "%s\n" "$ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb" >&6; }
+if test "x$ac_cv_lib_ngtcp2_crypto_openssl_ngtcp2_crypto_recv_client_initial_cb" = xyes
+then :
+
+              for ac_header in ngtcp2/ngtcp2_crypto.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "ngtcp2/ngtcp2_crypto.h" "ac_cv_header_ngtcp2_ngtcp2_crypto_h" "$ac_includes_default"
+if test "x$ac_cv_header_ngtcp2_ngtcp2_crypto_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NGTCP2_NGTCP2_CRYPTO_H 1" >>confdefs.h
+ NGTCP2_ENABLED=1
+
+printf "%s\n" "#define USE_NGTCP2_CRYPTO_OPENSSL 1" >>confdefs.h
+
+          USE_NGTCP2_CRYPTO_OPENSSL=1
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGTCP2_CRYPTO_OPENSSL"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_NGTCP2_CRYPTO_OPENSSL to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_NGTCP2_CRYPTO_OPENSSL to CURL_LIBRARY_PATH" >&6;}
+
+fi
+
+done
+
+else $as_nop
+          LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+
+fi
+
+
+  else
+        if test X"$want_tcp2" != Xdefault; then
+                  as_fn_error $? "--with-ngtcp2 was specified but could not find ngtcp2_crypto_openssl pkg-config file." "$LINENO" 5
+    fi
+  fi
+fi
+
+if test "x$NGTCP2_ENABLED" = "x1" -a "x$GNUTLS_ENABLED" = "x1"; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libngtcp2_crypto_gnutls options with pkg-config" >&5
+printf %s "checking for libngtcp2_crypto_gnutls options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libngtcp2_crypto_gnutls >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGTCP2_CRYPTO_GNUTLS=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l libngtcp2_crypto_gnutls`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_NGTCP2_CRYPTO_GNUTLS" >&5
+printf "%s\n" "$as_me: -l is $LIB_NGTCP2_CRYPTO_GNUTLS" >&6;}
+
+    CPP_NGTCP2_CRYPTO_GNUTLS=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I libngtcp2_crypto_gnutls`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_NGTCP2_CRYPTO_GNUTLS" >&5
+printf "%s\n" "$as_me: -I is $CPP_NGTCP2_CRYPTO_GNUTLS" >&6;}
+
+    LD_NGTCP2_CRYPTO_GNUTLS=`
+    if test -n "$want_tcp2_path"; then
+      PKG_CONFIG_LIBDIR="$want_tcp2_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L libngtcp2_crypto_gnutls`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_NGTCP2_CRYPTO_GNUTLS" >&5
+printf "%s\n" "$as_me: -L is $LD_NGTCP2_CRYPTO_GNUTLS" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_NGTCP2_CRYPTO_GNUTLS"
+    CPPFLAGS="$CPPFLAGS $CPP_NGTCP2_CRYPTO_GNUTLS"
+    LIBS="$LIB_NGTCP2_CRYPTO_GNUTLS $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGTCP2_CRYPTO_GNUTLS=`echo $LD_NGTCP2_CRYPTO_GNUTLS | $SED -e 's/^-L//'`
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ngtcp2_crypto_recv_client_initial_cb in -lngtcp2_crypto_gnutls" >&5
+printf %s "checking for ngtcp2_crypto_recv_client_initial_cb in -lngtcp2_crypto_gnutls... " >&6; }
+if test ${ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lngtcp2_crypto_gnutls  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char ngtcp2_crypto_recv_client_initial_cb ();
+int main (void)
+{
+return ngtcp2_crypto_recv_client_initial_cb ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb=yes
+else $as_nop
+  ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb" >&5
+printf "%s\n" "$ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb" >&6; }
+if test "x$ac_cv_lib_ngtcp2_crypto_gnutls_ngtcp2_crypto_recv_client_initial_cb" = xyes
+then :
+
+              for ac_header in ngtcp2/ngtcp2_crypto.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "ngtcp2/ngtcp2_crypto.h" "ac_cv_header_ngtcp2_ngtcp2_crypto_h" "$ac_includes_default"
+if test "x$ac_cv_header_ngtcp2_ngtcp2_crypto_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NGTCP2_NGTCP2_CRYPTO_H 1" >>confdefs.h
+ NGTCP2_ENABLED=1
+
+printf "%s\n" "#define USE_NGTCP2_CRYPTO_GNUTLS 1" >>confdefs.h
+
+          USE_NGTCP2_CRYPTO_GNUTLS=1
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGTCP2_CRYPTO_GNUTLS"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_NGTCP2_CRYPTO_GNUTLS to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_NGTCP2_CRYPTO_GNUTLS to CURL_LIBRARY_PATH" >&6;}
+
+fi
+
+done
+
+else $as_nop
+          LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+
+fi
+
+
+  else
+        if test X"$want_tcp2" != Xdefault; then
+                  as_fn_error $? "--with-ngtcp2 was specified but could not find ngtcp2_crypto_gnutls pkg-config file." "$LINENO" 5
+    fi
+  fi
+fi
+
+
+OPT_NGHTTP3="yes"
+
+if test "x$NGTCP2_ENABLED" = "x"; then
+  # without ngtcp2, nghttp3 is of no use for us
+  OPT_NGHTTP3="no"
+fi
+
+
+# Check whether --with-nghttp3 was given.
+if test ${with_nghttp3+y}
+then :
+  withval=$with_nghttp3; OPT_NGHTTP3=$withval
+fi
+
+case "$OPT_NGHTTP3" in
+  no)
+        want_nghttp3="no"
+    ;;
+  yes)
+        want_nghttp3="default"
+    want_nghttp3_path=""
+    ;;
+  *)
+        want_nghttp3="yes"
+    want_nghttp3_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+curl_http3_msg="no      (--with-nghttp3)"
+if test X"$want_nghttp3" != Xno; then
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libnghttp3 options with pkg-config" >&5
+printf %s "checking for libnghttp3 options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_nghttp3_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp3_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libnghttp3 >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGHTTP3=`
+    if test -n "$want_nghttp3_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp3_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l libnghttp3`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_NGHTTP3" >&5
+printf "%s\n" "$as_me: -l is $LIB_NGHTTP3" >&6;}
+
+    CPP_NGHTTP3=`
+    if test -n "$want_nghttp3_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp3_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I libnghttp3`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_NGHTTP3" >&5
+printf "%s\n" "$as_me: -I is $CPP_NGHTTP3" >&6;}
+
+    LD_NGHTTP3=`
+    if test -n "$want_nghttp3_path"; then
+      PKG_CONFIG_LIBDIR="$want_nghttp3_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L libnghttp3`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_NGHTTP3" >&5
+printf "%s\n" "$as_me: -L is $LD_NGHTTP3" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_NGHTTP3"
+    CPPFLAGS="$CPPFLAGS $CPP_NGHTTP3"
+    LIBS="$LIB_NGHTTP3 $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGHTTP3=`echo $LD_NGHTTP3 | $SED -e 's/^-L//'`
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for nghttp3_conn_client_new_versioned in -lnghttp3" >&5
+printf %s "checking for nghttp3_conn_client_new_versioned in -lnghttp3... " >&6; }
+if test ${ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnghttp3  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char nghttp3_conn_client_new_versioned ();
+int main (void)
+{
+return nghttp3_conn_client_new_versioned ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned=yes
+else $as_nop
+  ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned" >&5
+printf "%s\n" "$ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned" >&6; }
+if test "x$ac_cv_lib_nghttp3_nghttp3_conn_client_new_versioned" = xyes
+then :
+
+              for ac_header in nghttp3/nghttp3.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "nghttp3/nghttp3.h" "ac_cv_header_nghttp3_nghttp3_h" "$ac_includes_default"
+if test "x$ac_cv_header_nghttp3_nghttp3_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NGHTTP3_NGHTTP3_H 1" >>confdefs.h
+ curl_h3_msg="enabled (ngtcp2 + nghttp3)"
+          NGHTTP3_ENABLED=1
+
+printf "%s\n" "#define USE_NGHTTP3 1" >>confdefs.h
+
+          USE_NGHTTP3=1
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGHTTP3"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_NGHTTP3 to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_NGHTTP3 to CURL_LIBRARY_PATH" >&6;}
+          experimental="$experimental HTTP3"
+
+fi
+
+done
+
+else $as_nop
+          LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+
+fi
+
+
+  else
+        if test X"$want_nghttp3" != Xdefault; then
+                  as_fn_error $? "--with-nghttp3 was specified but could not find nghttp3 pkg-config file." "$LINENO" 5
+    fi
+  fi
+
+fi
+
+
+OPT_QUICHE="no"
+
+if test "x$disable_http" = "xyes" -o "x$USE_NGTCP" = "x1"; then
+  # without HTTP or with ngtcp2, quiche is no use
+  OPT_QUICHE="no"
+fi
+
+
+# Check whether --with-quiche was given.
+if test ${with_quiche+y}
+then :
+  withval=$with_quiche; OPT_QUICHE=$withval
+fi
+
+case "$OPT_QUICHE" in
+  no)
+        want_quiche="no"
+    ;;
+  yes)
+        want_quiche="default"
+    want_quiche_path=""
+    ;;
+  *)
+        want_quiche="yes"
+    want_quiche_path="$withval"
+    ;;
+esac
+
+if test X"$want_quiche" != Xno; then
+
+  if test "$NGHTTP3_ENABLED" = 1; then
+    as_fn_error $? "--with-quiche and --with-ngtcp2 are mutually exclusive" "$LINENO" 5
+  fi
+
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for quiche options with pkg-config" >&5
+printf %s "checking for quiche options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$want_quiche_path"; then
+      PKG_CONFIG_LIBDIR="$want_quiche_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists quiche >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_QUICHE=`
+    if test -n "$want_quiche_path"; then
+      PKG_CONFIG_LIBDIR="$want_quiche_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-l quiche`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -l is $LIB_QUICHE" >&5
+printf "%s\n" "$as_me: -l is $LIB_QUICHE" >&6;}
+
+    CPP_QUICHE=`
+    if test -n "$want_quiche_path"; then
+      PKG_CONFIG_LIBDIR="$want_quiche_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+       $PKGCONFIG --cflags-only-I quiche`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -I is $CPP_QUICHE" >&5
+printf "%s\n" "$as_me: -I is $CPP_QUICHE" >&6;}
+
+    LD_QUICHE=`
+    if test -n "$want_quiche_path"; then
+      PKG_CONFIG_LIBDIR="$want_quiche_path"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+      $PKGCONFIG --libs-only-L quiche`
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: -L is $LD_QUICHE" >&5
+printf "%s\n" "$as_me: -L is $LD_QUICHE" >&6;}
+
+    LDFLAGS="$LDFLAGS $LD_QUICHE"
+    CPPFLAGS="$CPPFLAGS $CPP_QUICHE"
+    LIBS="$LIB_QUICHE $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_QUICHE=`echo $LD_QUICHE | $SED -e 's/^-L//'`
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for quiche_connect in -lquiche" >&5
+printf %s "checking for quiche_connect in -lquiche... " >&6; }
+if test ${ac_cv_lib_quiche_quiche_connect+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lquiche  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char quiche_connect ();
+int main (void)
+{
+return quiche_connect ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_quiche_quiche_connect=yes
+else $as_nop
+  ac_cv_lib_quiche_quiche_connect=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_quiche_quiche_connect" >&5
+printf "%s\n" "$ac_cv_lib_quiche_quiche_connect" >&6; }
+if test "x$ac_cv_lib_quiche_quiche_connect" = xyes
+then :
+
+              for ac_header in quiche.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "quiche.h" "ac_cv_header_quiche_h" "
+$ac_includes_default
+#include 
+
+
+"
+if test "x$ac_cv_header_quiche_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_QUICHE_H 1" >>confdefs.h
+ experimental="$experimental HTTP3"
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: HTTP3 support is experimental" >&5
+printf "%s\n" "$as_me: HTTP3 support is experimental" >&6;}
+          curl_h3_msg="enabled (quiche)"
+          QUICHE_ENABLED=1
+
+printf "%s\n" "#define USE_QUICHE 1" >>confdefs.h
+
+          USE_QUICHE=1
+
+          ac_fn_c_check_func "$LINENO" "quiche_conn_set_qlog_fd" "ac_cv_func_quiche_conn_set_qlog_fd"
+if test "x$ac_cv_func_quiche_conn_set_qlog_fd" = xyes
+then :
+  printf "%s\n" "#define HAVE_QUICHE_CONN_SET_QLOG_FD 1" >>confdefs.h
+
+fi
+
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_QUICHE"
+          export CURL_LIBRARY_PATH
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_QUICHE to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_QUICHE to CURL_LIBRARY_PATH" >&6;}
+fi
+
+done
+
+else $as_nop
+          as_fn_error $? "couldn't use quiche" "$LINENO" 5
+
+fi
+
+  else
+        if test X"$want_quiche" != Xdefault; then
+                  as_fn_error $? "--with-quiche was specified but could not find quiche pkg-config file." "$LINENO" 5
+    fi
+  fi
+fi
+
+
+OPT_MSH3="no"
+
+if test "x$disable_http" = "xyes" -o "x$USE_NGTCP" = "x1"; then
+  # without HTTP or with ngtcp2, msh3 is no use
+  OPT_MSH3="no"
+fi
+
+
+# Check whether --with-msh3 was given.
+if test ${with_msh3+y}
+then :
+  withval=$with_msh3; OPT_MSH3=$withval
+fi
+
+case "$OPT_MSH3" in
+  no)
+        want_msh3="no"
+    ;;
+  yes)
+        want_msh3="default"
+    want_msh3_path=""
+    ;;
+  *)
+        want_msh3="yes"
+    want_msh3_path="$withval"
+    ;;
+esac
+
+if test X"$want_msh3" != Xno; then
+
+  if test "$NGHTTP3_ENABLED" = 1; then
+    as_fn_error $? "--with-msh3 and --with-ngtcp2 are mutually exclusive" "$LINENO" 5
+  fi
+
+    CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  if test -n "$want_msh3_path"; then
+    LD_MSH3="-L$want_msh3_path/lib"
+    CPP_MSH3="-I$want_msh3_path/include"
+    DIR_MSH3="$want_msh3_path/lib"
+    LDFLAGS="$LDFLAGS $LD_MSH3"
+    CPPFLAGS="$CPPFLAGS $CPP_MSH3"
+  fi
+  LIBS="-lmsh3 $LIBS"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for MsH3ApiOpen in -lmsh3" >&5
+printf %s "checking for MsH3ApiOpen in -lmsh3... " >&6; }
+if test ${ac_cv_lib_msh3_MsH3ApiOpen+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmsh3  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char MsH3ApiOpen ();
+int main (void)
+{
+return MsH3ApiOpen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_msh3_MsH3ApiOpen=yes
+else $as_nop
+  ac_cv_lib_msh3_MsH3ApiOpen=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_msh3_MsH3ApiOpen" >&5
+printf "%s\n" "$ac_cv_lib_msh3_MsH3ApiOpen" >&6; }
+if test "x$ac_cv_lib_msh3_MsH3ApiOpen" = xyes
+then :
+
+           for ac_header in msh3.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "msh3.h" "ac_cv_header_msh3_h" "$ac_includes_default"
+if test "x$ac_cv_header_msh3_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_MSH3_H 1" >>confdefs.h
+ curl_h3_msg="enabled (msh3)"
+        MSH3_ENABLED=1
+
+printf "%s\n" "#define USE_MSH3 1" >>confdefs.h
+
+        USE_MSH3=1
+
+        CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_MSH3"
+        export CURL_LIBRARY_PATH
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Added $DIR_MSH3 to CURL_LIBRARY_PATH" >&5
+printf "%s\n" "$as_me: Added $DIR_MSH3 to CURL_LIBRARY_PATH" >&6;}
+else $as_nop
+  experimental="$experimental HTTP3"
+
+fi
+
+done
+
+else $as_nop
+        LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+
+fi
+
+fi
+
+
+OPT_ZSH_FPATH=default
+
+# Check whether --with-zsh-functions-dir was given.
+if test ${with_zsh_functions_dir+y}
+then :
+  withval=$with_zsh_functions_dir; OPT_ZSH_FPATH=$withval
+fi
+
+case "$OPT_ZSH_FPATH" in
+  no)
+        ;;
+  default|yes)
+        ZSH_FUNCTIONS_DIR="$datarootdir/zsh/site-functions"
+
+    ;;
+  *)
+        ZSH_FUNCTIONS_DIR="$withval"
+
+    ;;
+esac
+
+
+OPT_FISH_FPATH=default
+
+# Check whether --with-fish-functions-dir was given.
+if test ${with_fish_functions_dir+y}
+then :
+  withval=$with_fish_functions_dir; OPT_FISH_FPATH=$withval
+fi
+
+case "$OPT_FISH_FPATH" in
+  no)
+        ;;
+  default|yes)
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for fish options with pkg-config" >&5
+printf %s "checking for fish options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists fish >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+    if test "$PKGCONFIG" != "no" ; then
+      FISH_FUNCTIONS_DIR="$($PKGCONFIG --variable completionsdir fish)"
+    else
+      FISH_FUNCTIONS_DIR="$datarootdir/fish/vendor_completions.d"
+    fi
+
+    ;;
+  *)
+        FISH_FUNCTIONS_DIR="$withval"
+
+    ;;
+esac
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for malloc.h" >&5
+printf %s "checking for malloc.h... " >&6; }
+if test ${curl_cv_header_malloc_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_malloc_h="yes"
+
+else $as_nop
+
+      curl_cv_header_malloc_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_malloc_h" >&5
+printf "%s\n" "$curl_cv_header_malloc_h" >&6; }
+  if test "$curl_cv_header_malloc_h" = "yes"; then
+
+printf "%s\n" "#define HAVE_MALLOC_H 1" >>confdefs.h
+
+    #
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_need_header_malloc_h="no"
+
+else $as_nop
+
+      curl_cv_need_header_malloc_h="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    #
+    case "$curl_cv_need_header_malloc_h" in
+      yes)
+
+printf "%s\n" "#define NEED_MALLOC_H 1" >>confdefs.h
+
+        ;;
+    esac
+  fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for memory.h" >&5
+printf %s "checking for memory.h... " >&6; }
+if test ${curl_cv_header_memory_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_memory_h="yes"
+
+else $as_nop
+
+      curl_cv_header_memory_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_memory_h" >&5
+printf "%s\n" "$curl_cv_header_memory_h" >&6; }
+  if test "$curl_cv_header_memory_h" = "yes"; then
+
+printf "%s\n" "#define HAVE_MEMORY_H 1" >>confdefs.h
+
+    #
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+
+int main (void)
+{
+
+        void *p = malloc(10);
+        void *q = calloc(10,10);
+        free(p);
+        free(q);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_need_header_memory_h="no"
+
+else $as_nop
+
+      curl_cv_need_header_memory_h="yes"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    #
+    case "$curl_cv_need_header_memory_h" in
+      yes)
+
+printf "%s\n" "#define NEED_MEMORY_H 1" >>confdefs.h
+
+        ;;
+    esac
+  fi
+
+
+ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_time_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TIME_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/select.h" "ac_cv_header_sys_select_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_select_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SELECT_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/ioctl.h" "ac_cv_header_sys_ioctl_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_ioctl_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_IOCTL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/uio.h" "ac_cv_header_sys_uio_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_uio_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_UIO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "assert.h" "ac_cv_header_assert_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_assert_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ASSERT_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_unistd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UNISTD_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_stdlib_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STDLIB_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "arpa/inet.h" "ac_cv_header_arpa_inet_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_arpa_inet_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ARPA_INET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "net/if.h" "ac_cv_header_net_if_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_net_if_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NET_IF_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netinet/in.h" "ac_cv_header_netinet_in_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_netinet_in_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETINET_IN_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netinet/in6.h" "ac_cv_header_netinet_in6_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_netinet_in6_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETINET_IN6_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/un.h" "ac_cv_header_sys_un_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_un_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_UN_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "linux/tcp.h" "ac_cv_header_linux_tcp_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_linux_tcp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LINUX_TCP_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netinet/tcp.h" "ac_cv_header_netinet_tcp_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_netinet_tcp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETINET_TCP_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netdb.h" "ac_cv_header_netdb_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_netdb_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETDB_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/sockio.h" "ac_cv_header_sys_sockio_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_sockio_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKIO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/stat.h" "ac_cv_header_sys_stat_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_stat_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_STAT_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/param.h" "ac_cv_header_sys_param_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_param_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_PARAM_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "termios.h" "ac_cv_header_termios_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_termios_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_TERMIOS_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "termio.h" "ac_cv_header_termio_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_termio_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_TERMIO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_fcntl_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_FCNTL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "alloca.h" "ac_cv_header_alloca_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_alloca_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ALLOCA_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "io.h" "ac_cv_header_io_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_io_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_IO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "pwd.h" "ac_cv_header_pwd_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_pwd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_PWD_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "utime.h" "ac_cv_header_utime_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_utime_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UTIME_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/utime.h" "ac_cv_header_sys_utime_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_utime_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_UTIME_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/poll.h" "ac_cv_header_sys_poll_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_poll_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_POLL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "poll.h" "ac_cv_header_poll_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_poll_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_POLL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "socket.h" "ac_cv_header_socket_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SOCKET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/resource.h" "ac_cv_header_sys_resource_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_resource_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_RESOURCE_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "libgen.h" "ac_cv_header_libgen_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_libgen_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBGEN_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "locale.h" "ac_cv_header_locale_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_locale_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LOCALE_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "errno.h" "ac_cv_header_errno_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_errno_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ERRNO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "stdbool.h" "ac_cv_header_stdbool_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_stdbool_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STDBOOL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "arpa/tftp.h" "ac_cv_header_arpa_tftp_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_arpa_tftp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ARPA_TFTP_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/filio.h" "ac_cv_header_sys_filio_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_filio_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_FILIO_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/wait.h" "ac_cv_header_sys_wait_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_sys_wait_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_WAIT_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "setjmp.h" "ac_cv_header_setjmp_h" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+
+
+"
+if test "x$ac_cv_header_setjmp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SETJMP_H 1" >>confdefs.h
+
+fi
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+printf %s "checking for an ANSI C-conforming const... " >&6; }
+if test ${ac_cv_c_const+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+
+#ifndef __cplusplus
+  /* Ultrix mips cc rejects this sort of thing.  */
+  typedef int charset[2];
+  const charset cs = { 0, 0 };
+  /* SunOS 4.1.1 cc rejects this.  */
+  char const *const *pcpcc;
+  char **ppc;
+  /* NEC SVR4.0.2 mips cc rejects this.  */
+  struct point {int x, y;};
+  static struct point const zero = {0,0};
+  /* IBM XL C 1.02.0.0 rejects this.
+     It does not let you subtract one const X* pointer from another in
+     an arm of an if-expression whose if-part is not a constant
+     expression */
+  const char *g = "string";
+  pcpcc = &g + (g ? g-g : 0);
+  /* HPUX 7.0 cc rejects these. */
+  ++pcpcc;
+  ppc = (char**) pcpcc;
+  pcpcc = (char const *const *) ppc;
+  { /* SCO 3.2v4 cc rejects this sort of thing.  */
+    char tx;
+    char *t = &tx;
+    char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+    *t++ = 0;
+    if (s) return 0;
+  }
+  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+    int x[] = {25, 17};
+    const int *foo = &x[0];
+    ++foo;
+  }
+  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+    typedef const int *iptr;
+    iptr p = 0;
+    ++p;
+  }
+  { /* IBM XL C 1.02.0.0 rejects this sort of thing, saying
+       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+    struct s { int j; const int *ap[3]; } bx;
+    struct s *b = &bx; b->j = 5;
+  }
+  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+    const int foo = 10;
+    if (!foo) return 0;
+  }
+  return !cs[0] && !zero.x;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_c_const=yes
+else $as_nop
+  ac_cv_c_const=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+printf "%s\n" "$ac_cv_c_const" >&6; }
+if test $ac_cv_c_const = no; then
+
+printf "%s\n" "#define const /**/" >>confdefs.h
+
+fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for compiler support of C99 variadic macro style" >&5
+printf %s "checking for compiler support of C99 variadic macro style... " >&6; }
+if test ${curl_cv_variadic_macros_c99+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define c99_vmacro3(first, ...) fun3(first, __VA_ARGS__)
+#define c99_vmacro2(first, ...) fun2(first, __VA_ARGS__)
+        int fun3(int arg1, int arg2, int arg3);
+        int fun2(int arg1, int arg2);
+        int fun3(int arg1, int arg2, int arg3)
+        { return arg1 + arg2 + arg3; }
+        int fun2(int arg1, int arg2)
+        { return arg1 + arg2; }
+
+int main (void)
+{
+
+        int res3 = c99_vmacro3(1, 2, 3);
+        int res2 = c99_vmacro2(1, 2);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_variadic_macros_c99="yes"
+
+else $as_nop
+
+      curl_cv_variadic_macros_c99="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_variadic_macros_c99" >&5
+printf "%s\n" "$curl_cv_variadic_macros_c99" >&6; }
+  case "$curl_cv_variadic_macros_c99" in
+    yes)
+
+printf "%s\n" "#define HAVE_VARIADIC_MACROS_C99 1" >>confdefs.h
+
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for compiler support of old gcc variadic macro style" >&5
+printf %s "checking for compiler support of old gcc variadic macro style... " >&6; }
+if test ${curl_cv_variadic_macros_gcc+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gcc_vmacro3(first, args...) fun3(first, args)
+#define gcc_vmacro2(first, args...) fun2(first, args)
+        int fun3(int arg1, int arg2, int arg3);
+        int fun2(int arg1, int arg2);
+        int fun3(int arg1, int arg2, int arg3)
+        { return arg1 + arg2 + arg3; }
+        int fun2(int arg1, int arg2)
+        { return arg1 + arg2; }
+
+int main (void)
+{
+
+        int res3 = gcc_vmacro3(1, 2, 3);
+        int res2 = gcc_vmacro2(1, 2);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_variadic_macros_gcc="yes"
+
+else $as_nop
+
+      curl_cv_variadic_macros_gcc="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_variadic_macros_gcc" >&5
+printf "%s\n" "$curl_cv_variadic_macros_gcc" >&6; }
+  case "$curl_cv_variadic_macros_gcc" in
+    yes)
+
+printf "%s\n" "#define HAVE_VARIADIC_MACROS_GCC 1" >>confdefs.h
+
+      ;;
+  esac
+
+ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
+if test "x$ac_cv_type_size_t" = xyes
+then :
+
+else $as_nop
+
+printf "%s\n" "#define size_t unsigned int" >>confdefs.h
+
+fi
+
+
+
+    ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_time_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TIME_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for struct timeval" >&5
+printf %s "checking for struct timeval... " >&6; }
+if test ${curl_cv_struct_timeval+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+
+int main (void)
+{
+
+        struct timeval ts;
+        ts.tv_sec  = 0;
+        ts.tv_usec = 0;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_struct_timeval="yes"
+
+else $as_nop
+
+      curl_cv_struct_timeval="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_struct_timeval" >&5
+printf "%s\n" "$curl_cv_struct_timeval" >&6; }
+  case "$curl_cv_struct_timeval" in
+    yes)
+
+printf "%s\n" "#define HAVE_STRUCT_TIMEVAL 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+
+    if test "x$cross_compiling" != xyes; then
+
+            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking run-time libs availability" >&5
+printf %s "checking run-time libs availability... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main()
+{
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: fine" >&5
+printf "%s\n" "fine" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+printf "%s\n" "failed" >&6; }
+    as_fn_error $? "one or more libs available at link-time are not available run-time. Libs used at link-time: $LIBS" "$LINENO" 5
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main()
+{
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: fine" >&5
+printf "%s\n" "fine" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+printf "%s\n" "failed" >&6; }
+    as_fn_error $? "one or more libs available at link-time are not available run-time. Libs used at link-time: $LIBS" "$LINENO" 5
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+
+      fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5
+printf %s "checking size of size_t... " >&6; }
+if test ${ac_cv_sizeof_size_t+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (size_t) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_size_t=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_size_t != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_size_t = x ; then
+  as_fn_error $? "cannot determine a size for size_t" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5
+printf "%s\n" "$ac_cv_sizeof_size_t" >&6; }
+
+printf "%s\n" "#define SIZEOF_SIZE_T $ac_cv_sizeof_size_t" >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
+printf %s "checking size of long... " >&6; }
+if test ${ac_cv_sizeof_long+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (long) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_long=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_long != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_long = x ; then
+  as_fn_error $? "cannot determine a size for long" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
+printf "%s\n" "$ac_cv_sizeof_long" >&6; }
+
+printf "%s\n" "#define SIZEOF_LONG $ac_cv_sizeof_long" >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
+printf %s "checking size of int... " >&6; }
+if test ${ac_cv_sizeof_int+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (int) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_int=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_int != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_int = x ; then
+  as_fn_error $? "cannot determine a size for int" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
+printf "%s\n" "$ac_cv_sizeof_int" >&6; }
+
+printf "%s\n" "#define SIZEOF_INT $ac_cv_sizeof_int" >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of short" >&5
+printf %s "checking size of short... " >&6; }
+if test ${ac_cv_sizeof_short+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (short) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_short=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_short != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_short = x ; then
+  as_fn_error $? "cannot determine a size for short" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5
+printf "%s\n" "$ac_cv_sizeof_short" >&6; }
+
+printf "%s\n" "#define SIZEOF_SHORT $ac_cv_sizeof_short" >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of time_t" >&5
+printf %s "checking size of time_t... " >&6; }
+if test ${ac_cv_sizeof_time_t+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (time_t) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_time_t=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_time_t != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_time_t = x ; then
+  as_fn_error $? "cannot determine a size for time_t" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_time_t" >&5
+printf "%s\n" "$ac_cv_sizeof_time_t" >&6; }
+
+printf "%s\n" "#define SIZEOF_TIME_T $ac_cv_sizeof_time_t" >>confdefs.h
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of off_t" >&5
+printf %s "checking size of off_t... " >&6; }
+if test ${ac_cv_sizeof_off_t+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (off_t) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_off_t=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_off_t != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_off_t = x ; then
+  as_fn_error $? "cannot determine a size for off_t" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_off_t" >&5
+printf "%s\n" "$ac_cv_sizeof_off_t" >&6; }
+
+printf "%s\n" "#define SIZEOF_OFF_T $ac_cv_sizeof_off_t" >>confdefs.h
+
+
+
+o=$CPPFLAGS
+CPPFLAGS="-I$srcdir/include $CPPFLAGS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of curl_off_t" >&5
+printf %s "checking size of curl_off_t... " >&6; }
+if test ${ac_cv_sizeof_curl_off_t+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  for ac_size in 4 8 1 2 16  ; do # List sizes in rough order of prevalence.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include 
+
+#include 
+
+
+int main (void)
+{
+switch (0) case 0: case (sizeof (curl_off_t) == $ac_size):;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_sizeof_curl_off_t=$ac_size
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test x$ac_cv_sizeof_curl_off_t != x ; then break; fi
+done
+
+fi
+
+if test x$ac_cv_sizeof_curl_off_t = x ; then
+  as_fn_error $? "cannot determine a size for curl_off_t" "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_curl_off_t" >&5
+printf "%s\n" "$ac_cv_sizeof_curl_off_t" >&6; }
+
+printf "%s\n" "#define SIZEOF_CURL_OFF_T $ac_cv_sizeof_curl_off_t" >>confdefs.h
+
+
+CPPFLAGS=$o
+
+ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+if test "x$ac_cv_type_long_long" = xyes
+then :
+
+printf "%s\n" "#define HAVE_LONGLONG 1" >>confdefs.h
+
+   longlong="yes"
+
+fi
+
+
+if test "xyes" = "x$longlong"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if numberLL works" >&5
+printf %s "checking if numberLL works... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+      long long val = 1000LL;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_LL 1" >>confdefs.h
+
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+# check for ssize_t
+ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default"
+if test "x$ac_cv_type_ssize_t" = xyes
+then :
+
+else $as_nop
+
+printf "%s\n" "#define ssize_t int" >>confdefs.h
+
+fi
+
+
+# check for bool type
+ac_fn_c_check_type "$LINENO" "bool" "ac_cv_type_bool" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_STDBOOL_H
+#include 
+#endif
+
+"
+if test "x$ac_cv_type_bool" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_BOOL_T 1" >>confdefs.h
+
+
+fi
+
+
+# check for sa_family_t
+ac_fn_c_check_type "$LINENO" "sa_family_t" "ac_cv_type_sa_family_t" "
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+
+"
+if test "x$ac_cv_type_sa_family_t" = xyes
+then :
+
+printf "%s\n" "#define CURL_SA_FAMILY_T sa_family_t" >>confdefs.h
+
+else $as_nop
+
+   # The windows name?
+   ac_fn_c_check_type "$LINENO" "ADDRESS_FAMILY" "ac_cv_type_ADDRESS_FAMILY" "
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+
+"
+if test "x$ac_cv_type_ADDRESS_FAMILY" = xyes
+then :
+
+printf "%s\n" "#define CURL_SA_FAMILY_T ADDRESS_FAMILY" >>confdefs.h
+
+else $as_nop
+
+printf "%s\n" "#define CURL_SA_FAMILY_T unsigned short" >>confdefs.h
+
+fi
+
+
+fi
+
+
+# check for suseconds_t
+ac_fn_c_check_type "$LINENO" "suseconds_t" "ac_cv_type_suseconds_t" "
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+
+"
+if test "x$ac_cv_type_suseconds_t" = xyes
+then :
+
+
+printf "%s\n" "#define HAVE_SUSECONDS_T 1" >>confdefs.h
+
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if time_t is unsigned" >&5
+printf %s "checking if time_t is unsigned... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include 
+  #include 
+  time_t t = -1;
+  return (t > 0);
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_TIME_T_UNSIGNED 1" >>confdefs.h
+
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #include 
+  #include 
+  time_t t = -1;
+  return (t > 0);
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_TIME_T_UNSIGNED 1" >>confdefs.h
+
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+
+
+curl_includes_poll="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_POLL_H
+#  include 
+#endif
+#ifdef HAVE_SYS_POLL_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_poll
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "poll.h" "ac_cv_header_poll_h" "$curl_includes_poll
+"
+if test "x$ac_cv_header_poll_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_POLL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/poll.h" "ac_cv_header_sys_poll_h" "$curl_includes_poll
+"
+if test "x$ac_cv_header_sys_poll_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_POLL_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_poll_events_macro_defined="unknown"
+  #
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_poll
+
+int main (void)
+{
+
+#if defined(events) || defined(revents)
+      return 0;
+#else
+      force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tst_poll_events_macro_defined="yes"
+
+else $as_nop
+
+    tst_poll_events_macro_defined="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  #
+  if test "$tst_poll_events_macro_defined" = "yes"; then
+    if test "x$ac_cv_header_sys_poll_h" = "xyes"; then
+
+cat >>confdefs.h <<_EOF
+#define CURL_PULL_SYS_POLL_H 1
+_EOF
+
+    fi
+  fi
+  #
+
+
+
+  ac_fn_c_check_type "$LINENO" "in_addr_t" "ac_cv_type_in_addr_t" "
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+
+"
+if test "x$ac_cv_type_in_addr_t" = xyes
+then :
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for in_addr_t equivalent" >&5
+printf %s "checking for in_addr_t equivalent... " >&6; }
+if test ${curl_cv_in_addr_t_equiv+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+      curl_cv_in_addr_t_equiv="unknown"
+      for t in "unsigned long" int size_t unsigned long; do
+        if test "$curl_cv_in_addr_t_equiv" = "unknown"; then
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+
+int main (void)
+{
+
+              $t data = inet_addr ("1.2.3.4");
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+            curl_cv_in_addr_t_equiv="$t"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+        fi
+      done
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_in_addr_t_equiv" >&5
+printf "%s\n" "$curl_cv_in_addr_t_equiv" >&6; }
+    case "$curl_cv_in_addr_t_equiv" in
+      unknown)
+        as_fn_error $? "Cannot find a type to use in place of in_addr_t" "$LINENO" 5
+        ;;
+      *)
+
+printf "%s\n" "#define in_addr_t $curl_cv_in_addr_t_equiv" >>confdefs.h
+
+        ;;
+    esac
+
+fi
+
+
+
+
+   ac_fn_c_check_type "$LINENO" "struct sockaddr_storage" "ac_cv_type_struct_sockaddr_storage" "
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include 
+#endif
+#endif
+
+"
+if test "x$ac_cv_type_struct_sockaddr_storage" = xyes
+then :
+
+printf "%s\n" "#define HAVE_STRUCT_SOCKADDR_STORAGE 1" >>confdefs.h
+
+fi
+
+
+
+
+    ac_fn_c_check_header_compile "$LINENO" "sys/select.h" "ac_cv_header_sys_select_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_select_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SELECT_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for select" >&5
+printf %s "checking for select... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifndef HAVE_WINDOWS_H
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
+#endif
+
+int main (void)
+{
+
+      select(0, 0, 0, 0, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    curl_cv_select="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_select="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$curl_cv_select" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking types of args and return type for select" >&5
+printf %s "checking types of args and return type for select... " >&6; }
+if test ${curl_cv_func_select_args+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+      curl_cv_func_select_args="unknown"
+      for sel_retv in 'int' 'ssize_t'; do
+        for sel_arg1 in 'int' 'ssize_t' 'size_t' 'unsigned long int' 'unsigned int'; do
+          for sel_arg234 in 'fd_set *' 'int *' 'void *'; do
+            for sel_arg5 in 'struct timeval *' 'const struct timeval *'; do
+              if test "$curl_cv_func_select_args" = "unknown"; then
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define SELECTCALLCONV PASCAL
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#include 
+#ifndef HAVE_WINDOWS_H
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
+#endif
+#define SELECTCALLCONV
+#endif
+#ifndef HAVE_STRUCT_TIMEVAL
+                    struct timeval {
+                      long tv_sec;
+                      long tv_usec;
+                    };
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                    extern $sel_retv SELECTCALLCONV
+				select($sel_arg1,
+					$sel_arg234,
+					$sel_arg234,
+					$sel_arg234,
+					$sel_arg5);
+#endif
+
+int main (void)
+{
+
+                    $sel_arg1   nfds=0;
+                    $sel_arg234 rfds=0;
+                    $sel_arg234 wfds=0;
+                    $sel_arg234 efds=0;
+                    $sel_retv res = select(nfds, rfds, wfds, efds, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+                  curl_cv_func_select_args="$sel_arg1,$sel_arg234,$sel_arg5,$sel_retv"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+              fi
+            done
+          done
+        done
+      done
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_func_select_args" >&5
+printf "%s\n" "$curl_cv_func_select_args" >&6; } # AC-CACHE-CHECK
+    if test "$curl_cv_func_select_args" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find proper types to use for select args" >&5
+printf "%s\n" "$as_me: WARNING: Cannot find proper types to use for select args" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: HAVE_SELECT will not be defined" >&5
+printf "%s\n" "$as_me: WARNING: HAVE_SELECT will not be defined" >&2;}
+    else
+      select_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_select_args" | sed 's/\*/\*/g'`
+      IFS=$select_prev_IFS
+      shift
+      #
+      sel_qual_type_arg5=$3
+      #
+
+printf "%s\n" "#define SELECT_TYPE_ARG1 $1" >>confdefs.h
+
+
+printf "%s\n" "#define SELECT_TYPE_ARG234 $2" >>confdefs.h
+
+
+printf "%s\n" "#define SELECT_TYPE_RETV $4" >>confdefs.h
+
+      #
+      prev_sh_opts=$-
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set -f
+          ;;
+      esac
+      #
+      case "$sel_qual_type_arg5" in
+        const*)
+          sel_qual_arg5=const
+          sel_type_arg5=`echo $sel_qual_type_arg5 | sed 's/^const //'`
+        ;;
+        *)
+          sel_qual_arg5=
+          sel_type_arg5=$sel_qual_type_arg5
+        ;;
+      esac
+      #
+
+printf "%s\n" "#define SELECT_QUAL_ARG5 $sel_qual_arg5" >>confdefs.h
+
+
+printf "%s\n" "#define SELECT_TYPE_ARG5 $sel_type_arg5" >>confdefs.h
+
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set +f
+          ;;
+      esac
+      #
+
+printf "%s\n" "#define HAVE_SELECT 1" >>confdefs.h
+
+      curl_cv_func_select="yes"
+    fi
+  fi
+
+
+
+    ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for recv" >&5
+printf %s "checking for recv... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+
+int main (void)
+{
+
+      recv(0, 0, 0, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    curl_cv_recv="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_recv="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$curl_cv_recv" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking types of args and return type for recv" >&5
+printf %s "checking types of args and return type for recv... " >&6; }
+if test ${curl_cv_func_recv_args+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+      curl_cv_func_recv_args="unknown"
+      for recv_retv in 'int' 'ssize_t'; do
+        for recv_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+          for recv_arg2 in 'char *' 'void *'; do
+            for recv_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+              for recv_arg4 in 'int' 'unsigned int'; do
+                if test "$curl_cv_func_recv_args" = "unknown"; then
+                  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define RECVCALLCONV PASCAL
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#define RECVCALLCONV
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                      extern $recv_retv RECVCALLCONV
+                      recv($recv_arg1, $recv_arg2, $recv_arg3, $recv_arg4);
+#endif
+
+int main (void)
+{
+
+                      $recv_arg1 s=0;
+                      $recv_arg2 buf=0;
+                      $recv_arg3 len=0;
+                      $recv_arg4 flags=0;
+                      $recv_retv res = recv(s, buf, len, flags);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+                    curl_cv_func_recv_args="$recv_arg1,$recv_arg2,$recv_arg3,$recv_arg4,$recv_retv"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+                fi
+              done
+            done
+          done
+        done
+      done
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_func_recv_args" >&5
+printf "%s\n" "$curl_cv_func_recv_args" >&6; } # AC-CACHE-CHECK
+    if test "$curl_cv_func_recv_args" = "unknown"; then
+      as_fn_error $? "Cannot find proper types to use for recv args" "$LINENO" 5
+    else
+      recv_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_recv_args" | sed 's/\*/\*/g'`
+      IFS=$recv_prev_IFS
+      shift
+      #
+
+printf "%s\n" "#define RECV_TYPE_ARG1 $1" >>confdefs.h
+
+
+printf "%s\n" "#define RECV_TYPE_ARG2 $2" >>confdefs.h
+
+
+printf "%s\n" "#define RECV_TYPE_ARG3 $3" >>confdefs.h
+
+
+printf "%s\n" "#define RECV_TYPE_ARG4 $4" >>confdefs.h
+
+
+printf "%s\n" "#define RECV_TYPE_RETV $5" >>confdefs.h
+
+      #
+
+printf "%s\n" "#define HAVE_RECV 1" >>confdefs.h
+
+      curl_cv_func_recv="yes"
+    fi
+  else
+    as_fn_error $? "Unable to link function recv" "$LINENO" 5
+  fi
+
+
+    ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for send" >&5
+printf %s "checking for send... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+
+int main (void)
+{
+
+      send(0, 0, 0, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    curl_cv_send="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_send="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$curl_cv_send" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking types of args and return type for send" >&5
+printf %s "checking types of args and return type for send... " >&6; }
+if test ${curl_cv_func_send_args+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+      curl_cv_func_send_args="unknown"
+      for send_retv in 'int' 'ssize_t'; do
+        for send_arg1 in 'int' 'ssize_t' 'SOCKET'; do
+          for send_arg2 in 'char *' 'void *' 'const char *' 'const void *'; do
+            for send_arg3 in 'size_t' 'int' 'socklen_t' 'unsigned int'; do
+              for send_arg4 in 'int' 'unsigned int'; do
+                if test "$curl_cv_func_send_args" = "unknown"; then
+                  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#define SENDCALLCONV PASCAL
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#define SENDCALLCONV
+#endif
+#ifndef HAVE_PROTO_BSDSOCKET_H
+                      extern $send_retv SENDCALLCONV
+                      send($send_arg1, $send_arg2, $send_arg3, $send_arg4);
+#endif
+
+int main (void)
+{
+
+                      $send_arg1 s=0;
+                      $send_arg3 len=0;
+                      $send_arg4 flags=0;
+                      $send_retv res = send(s, 0, len, flags);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+                    curl_cv_func_send_args="$send_arg1,$send_arg2,$send_arg3,$send_arg4,$send_retv"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+                fi
+              done
+            done
+          done
+        done
+      done
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_func_send_args" >&5
+printf "%s\n" "$curl_cv_func_send_args" >&6; } # AC-CACHE-CHECK
+    if test "$curl_cv_func_send_args" = "unknown"; then
+      as_fn_error $? "Cannot find proper types to use for send args" "$LINENO" 5
+    else
+      send_prev_IFS=$IFS; IFS=','
+      set dummy `echo "$curl_cv_func_send_args" | sed 's/\*/\*/g'`
+      IFS=$send_prev_IFS
+      shift
+      #
+      send_qual_type_arg2=$2
+      #
+
+printf "%s\n" "#define SEND_TYPE_ARG1 $1" >>confdefs.h
+
+
+printf "%s\n" "#define SEND_TYPE_ARG3 $3" >>confdefs.h
+
+
+printf "%s\n" "#define SEND_TYPE_ARG4 $4" >>confdefs.h
+
+
+printf "%s\n" "#define SEND_TYPE_RETV $5" >>confdefs.h
+
+      #
+      prev_sh_opts=$-
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set -f
+          ;;
+      esac
+      #
+      case "$send_qual_type_arg2" in
+        const*)
+          send_qual_arg2=const
+          send_type_arg2=`echo $send_qual_type_arg2 | sed 's/^const //'`
+        ;;
+        *)
+          send_qual_arg2=
+          send_type_arg2=$send_qual_type_arg2
+        ;;
+      esac
+      #
+
+printf "%s\n" "#define SEND_QUAL_ARG2 $send_qual_arg2" >>confdefs.h
+
+
+printf "%s\n" "#define SEND_TYPE_ARG2 $send_type_arg2" >>confdefs.h
+
+      #
+      case $prev_sh_opts in
+        *f*)
+          ;;
+        *)
+          set +f
+          ;;
+      esac
+      #
+
+printf "%s\n" "#define HAVE_SEND 1" >>confdefs.h
+
+      curl_cv_func_send="yes"
+    fi
+  else
+    as_fn_error $? "Unable to link function send" "$LINENO" 5
+  fi
+
+
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for MSG_NOSIGNAL" >&5
+printf %s "checking for MSG_NOSIGNAL... " >&6; }
+if test ${curl_cv_msg_nosignal+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#else
+#ifdef HAVE_PROTO_BSDSOCKET_H
+#include 
+struct Library *SocketBase = NULL;
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#endif
+
+int main (void)
+{
+
+        int flag=MSG_NOSIGNAL;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_msg_nosignal="yes"
+
+else $as_nop
+
+      curl_cv_msg_nosignal="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_msg_nosignal" >&5
+printf "%s\n" "$curl_cv_msg_nosignal" >&6; }
+  case "$curl_cv_msg_nosignal" in
+    yes)
+
+printf "%s\n" "#define HAVE_MSG_NOSIGNAL 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+
+curl_includes_unistd="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_UNISTD_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_unistd
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$curl_includes_unistd
+"
+if test "x$ac_cv_header_unistd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UNISTD_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_alarm="unknown"
+  tst_proto_alarm="unknown"
+  tst_compi_alarm="unknown"
+  tst_allow_alarm="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if alarm can be linked" >&5
+printf %s "checking if alarm can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define alarm innocuous_alarm
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef alarm
+#ifdef __cplusplus
+extern "C"
+#endif
+char alarm ();
+#if defined __stub_alarm || defined __stub___alarm
+choke me
+#endif
+
+int main (void)
+{
+return alarm ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_alarm="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_alarm="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_alarm" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if alarm is prototyped" >&5
+printf %s "checking if alarm is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_unistd
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "alarm" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_alarm="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_alarm="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_alarm" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if alarm is compilable" >&5
+printf %s "checking if alarm is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_unistd
+
+int main (void)
+{
+
+        if(0 != alarm(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_alarm="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_alarm="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_alarm" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if alarm usage allowed" >&5
+printf %s "checking if alarm usage allowed... " >&6; }
+    if test "x$curl_disallow_alarm" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_alarm="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_alarm="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if alarm might be used" >&5
+printf %s "checking if alarm might be used... " >&6; }
+  if test "$tst_links_alarm" = "yes" &&
+     test "$tst_proto_alarm" = "yes" &&
+     test "$tst_compi_alarm" = "yes" &&
+     test "$tst_allow_alarm" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_ALARM 1" >>confdefs.h
+
+    curl_cv_func_alarm="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_alarm="no"
+  fi
+
+
+curl_includes_string="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_STRING_H
+#  include 
+#endif
+#ifdef HAVE_STRINGS_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_string
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "string.h" "ac_cv_header_string_h" "$curl_includes_string
+"
+if test "x$ac_cv_header_string_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRING_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "strings.h" "ac_cv_header_strings_h" "$curl_includes_string
+"
+if test "x$ac_cv_header_strings_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRINGS_H 1" >>confdefs.h
+
+fi
+
+
+
+curl_includes_libgen="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_LIBGEN_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_libgen
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "libgen.h" "ac_cv_header_libgen_h" "$curl_includes_libgen
+"
+if test "x$ac_cv_header_libgen_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_LIBGEN_H 1" >>confdefs.h
+
+fi
+
+
+
+        #
+  tst_links_basename="unknown"
+  tst_proto_basename="unknown"
+  tst_compi_basename="unknown"
+  tst_allow_basename="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if basename can be linked" >&5
+printf %s "checking if basename can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define basename innocuous_basename
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef basename
+#ifdef __cplusplus
+extern "C"
+#endif
+char basename ();
+#if defined __stub_basename || defined __stub___basename
+choke me
+#endif
+
+int main (void)
+{
+return basename ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_basename="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_basename="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_basename" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if basename is prototyped" >&5
+printf %s "checking if basename is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+      $curl_includes_libgen
+      $curl_includes_unistd
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "basename" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_basename="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_basename="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_basename" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if basename is compilable" >&5
+printf %s "checking if basename is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+        $curl_includes_libgen
+        $curl_includes_unistd
+
+int main (void)
+{
+
+        if(0 != basename(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_basename="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_basename="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_basename" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if basename usage allowed" >&5
+printf %s "checking if basename usage allowed... " >&6; }
+    if test "x$curl_disallow_basename" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_basename="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_basename="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if basename might be used" >&5
+printf %s "checking if basename might be used... " >&6; }
+  if test "$tst_links_basename" = "yes" &&
+     test "$tst_proto_basename" = "yes" &&
+     test "$tst_compi_basename" = "yes" &&
+     test "$tst_allow_basename" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_BASENAME 1" >>confdefs.h
+
+    curl_cv_func_basename="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_basename="no"
+  fi
+
+
+curl_includes_socket="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SOCKET_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_socket
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "socket.h" "ac_cv_header_socket_h" "$curl_includes_socket
+"
+if test "x$ac_cv_header_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SOCKET_H 1" >>confdefs.h
+
+fi
+
+
+
+      #
+  tst_links_closesocket="unknown"
+  tst_proto_closesocket="unknown"
+  tst_compi_closesocket="unknown"
+  tst_allow_closesocket="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if closesocket can be linked" >&5
+printf %s "checking if closesocket can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_socket
+
+int main (void)
+{
+
+      if(0 != closesocket(0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_closesocket="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_closesocket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_closesocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if closesocket is prototyped" >&5
+printf %s "checking if closesocket is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "closesocket" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_closesocket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_closesocket="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_closesocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if closesocket is compilable" >&5
+printf %s "checking if closesocket is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_socket
+
+int main (void)
+{
+
+        if(0 != closesocket(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_closesocket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_closesocket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_closesocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if closesocket usage allowed" >&5
+printf %s "checking if closesocket usage allowed... " >&6; }
+    if test "x$curl_disallow_closesocket" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_closesocket="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_closesocket="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if closesocket might be used" >&5
+printf %s "checking if closesocket might be used... " >&6; }
+  if test "$tst_links_closesocket" = "yes" &&
+     test "$tst_proto_closesocket" = "yes" &&
+     test "$tst_compi_closesocket" = "yes" &&
+     test "$tst_allow_closesocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_CLOSESOCKET 1" >>confdefs.h
+
+    curl_cv_func_closesocket="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_closesocket="no"
+  fi
+
+
+curl_includes_sys_socket="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_sys_socket
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$curl_includes_sys_socket
+"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_closesocket_camel="unknown"
+  tst_proto_closesocket_camel="unknown"
+  tst_compi_closesocket_camel="unknown"
+  tst_allow_closesocket_camel="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if CloseSocket can be linked" >&5
+printf %s "checking if CloseSocket can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_sys_socket
+
+int main (void)
+{
+
+      if(0 != CloseSocket(0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_closesocket_camel="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_closesocket_camel="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_closesocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if CloseSocket is prototyped" >&5
+printf %s "checking if CloseSocket is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_sys_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "CloseSocket" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_closesocket_camel="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_closesocket_camel="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_closesocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if CloseSocket is compilable" >&5
+printf %s "checking if CloseSocket is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_sys_socket
+
+int main (void)
+{
+
+        if(0 != CloseSocket(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_closesocket_camel="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_closesocket_camel="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_closesocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if CloseSocket usage allowed" >&5
+printf %s "checking if CloseSocket usage allowed... " >&6; }
+    if test "x$curl_disallow_closesocket_camel" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_closesocket_camel="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_closesocket_camel="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if CloseSocket might be used" >&5
+printf %s "checking if CloseSocket might be used... " >&6; }
+  if test "$tst_links_closesocket_camel" = "yes" &&
+     test "$tst_proto_closesocket_camel" = "yes" &&
+     test "$tst_compi_closesocket_camel" = "yes" &&
+     test "$tst_allow_closesocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_CLOSESOCKET_CAMEL 1" >>confdefs.h
+
+    curl_cv_func_closesocket_camel="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_closesocket_camel="no"
+  fi
+
+
+        #
+  tst_links_connect="unknown"
+  tst_proto_connect="unknown"
+  tst_compi_connect="unknown"
+  tst_allow_connect="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if connect can be linked" >&5
+printf %s "checking if connect can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+      $curl_includes_socket
+
+int main (void)
+{
+
+      if(0 != connect(0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_connect="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_connect="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_connect" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if connect is prototyped" >&5
+printf %s "checking if connect is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+      $curl_includes_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "connect" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_connect="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_connect="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_connect" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if connect is compilable" >&5
+printf %s "checking if connect is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+        $curl_includes_socket
+
+int main (void)
+{
+
+        if(0 != connect(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_connect="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_connect="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_connect" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if connect usage allowed" >&5
+printf %s "checking if connect usage allowed... " >&6; }
+    if test "x$curl_disallow_connect" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_connect="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_connect="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if connect might be used" >&5
+printf %s "checking if connect might be used... " >&6; }
+  if test "$tst_links_connect" = "yes" &&
+     test "$tst_proto_connect" = "yes" &&
+     test "$tst_compi_connect" = "yes" &&
+     test "$tst_allow_connect" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_CONNECT 1" >>confdefs.h
+
+    curl_cv_func_connect="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_connect="no"
+  fi
+
+
+curl_includes_fcntl="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_UNISTD_H
+#  include 
+#endif
+#ifdef HAVE_FCNTL_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_fcntl
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$curl_includes_fcntl
+"
+if test "x$ac_cv_header_unistd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UNISTD_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "$curl_includes_fcntl
+"
+if test "x$ac_cv_header_fcntl_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_FCNTL_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_fcntl="unknown"
+  tst_proto_fcntl="unknown"
+  tst_compi_fcntl="unknown"
+  tst_allow_fcntl="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl can be linked" >&5
+printf %s "checking if fcntl can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define fcntl innocuous_fcntl
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef fcntl
+#ifdef __cplusplus
+extern "C"
+#endif
+char fcntl ();
+#if defined __stub_fcntl || defined __stub___fcntl
+choke me
+#endif
+
+int main (void)
+{
+return fcntl ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_fcntl="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_fcntl="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_fcntl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl is prototyped" >&5
+printf %s "checking if fcntl is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_fcntl
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "fcntl" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_fcntl="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_fcntl="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_fcntl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl is compilable" >&5
+printf %s "checking if fcntl is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_fcntl
+
+int main (void)
+{
+
+        if(0 != fcntl(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_fcntl="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_fcntl="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_fcntl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl usage allowed" >&5
+printf %s "checking if fcntl usage allowed... " >&6; }
+    if test "x$curl_disallow_fcntl" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_fcntl="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_fcntl="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl might be used" >&5
+printf %s "checking if fcntl might be used... " >&6; }
+  if test "$tst_links_fcntl" = "yes" &&
+     test "$tst_proto_fcntl" = "yes" &&
+     test "$tst_compi_fcntl" = "yes" &&
+     test "$tst_allow_fcntl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_FCNTL 1" >>confdefs.h
+
+    curl_cv_func_fcntl="yes"
+
+  #
+  tst_compi_fcntl_o_nonblock="unknown"
+  tst_allow_fcntl_o_nonblock="unknown"
+  #
+  case $host_os in
+    sunos4* | aix3*)
+            curl_disallow_fcntl_o_nonblock="yes"
+      ;;
+  esac
+  #
+  if test "$curl_cv_func_fcntl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl O_NONBLOCK is compilable" >&5
+printf %s "checking if fcntl O_NONBLOCK is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_fcntl
+
+int main (void)
+{
+
+        int flags = 0;
+        if(0 != fcntl(0, F_SETFL, flags | O_NONBLOCK))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_fcntl_o_nonblock="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_fcntl_o_nonblock="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_fcntl_o_nonblock" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl O_NONBLOCK usage allowed" >&5
+printf %s "checking if fcntl O_NONBLOCK usage allowed... " >&6; }
+    if test "x$curl_disallow_fcntl_o_nonblock" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_fcntl_o_nonblock="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_fcntl_o_nonblock="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fcntl O_NONBLOCK might be used" >&5
+printf %s "checking if fcntl O_NONBLOCK might be used... " >&6; }
+  if test "$tst_compi_fcntl_o_nonblock" = "yes" &&
+     test "$tst_allow_fcntl_o_nonblock" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_FCNTL_O_NONBLOCK 1" >>confdefs.h
+
+    curl_cv_func_fcntl_o_nonblock="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_fcntl_o_nonblock="no"
+  fi
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_fcntl="no"
+  fi
+
+
+curl_includes_ws2tcpip="\
+/* includes start */
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include 
+#  ifdef HAVE_WINSOCK2_H
+#    include 
+#    ifdef HAVE_WS2TCPIP_H
+#       include 
+#    endif
+#  endif
+#endif
+/* includes end */"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for windows.h" >&5
+printf %s "checking for windows.h... " >&6; }
+if test ${curl_cv_header_windows_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__)
+        HAVE_WINDOWS_H shall not be defined.
+#else
+        int dummy=2*WINVER;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_windows_h="yes"
+
+else $as_nop
+
+      curl_cv_header_windows_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_windows_h" >&5
+printf "%s\n" "$curl_cv_header_windows_h" >&6; }
+  case "$curl_cv_header_windows_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINDOWS_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for winsock2.h" >&5
+printf %s "checking for winsock2.h... " >&6; }
+if test ${curl_cv_header_winsock2_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WINSOCK2_H shall not be defined.
+#else
+        int dummy=2*IPPROTO_ESP;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_winsock2_h="yes"
+
+else $as_nop
+
+      curl_cv_header_winsock2_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_winsock2_h" >&5
+printf "%s\n" "$curl_cv_header_winsock2_h" >&6; }
+  case "$curl_cv_header_winsock2_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WINSOCK2_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ws2tcpip.h" >&5
+printf %s "checking for ws2tcpip.h... " >&6; }
+if test ${curl_cv_header_ws2tcpip_h+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#undef inline
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#include 
+#include 
+
+int main (void)
+{
+
+#if defined(__CYGWIN__) || defined(__CEGCC__) || defined(__MINGW32CE__)
+        HAVE_WS2TCPIP_H shall not be defined.
+#else
+        int dummy=2*IP_PKTINFO;
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      curl_cv_header_ws2tcpip_h="yes"
+
+else $as_nop
+
+      curl_cv_header_ws2tcpip_h="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $curl_cv_header_ws2tcpip_h" >&5
+printf "%s\n" "$curl_cv_header_ws2tcpip_h" >&6; }
+  case "$curl_cv_header_ws2tcpip_h" in
+    yes)
+
+printf "%s\n" "#define HAVE_WS2TCPIP_H 1" >>confdefs.h
+
+      ;;
+  esac
+
+
+
+curl_includes_netdb="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_NETDB_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_netdb
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netdb.h" "ac_cv_header_netdb_h" "$curl_includes_netdb
+"
+if test "x$ac_cv_header_netdb_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETDB_H 1" >>confdefs.h
+
+fi
+
+
+
+        #
+  tst_links_freeaddrinfo="unknown"
+  tst_proto_freeaddrinfo="unknown"
+  tst_compi_freeaddrinfo="unknown"
+  tst_allow_freeaddrinfo="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if freeaddrinfo can be linked" >&5
+printf %s "checking if freeaddrinfo can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_ws2tcpip
+      $curl_includes_sys_socket
+      $curl_includes_netdb
+
+int main (void)
+{
+
+      freeaddrinfo(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_freeaddrinfo="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_freeaddrinfo="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_freeaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if freeaddrinfo is prototyped" >&5
+printf %s "checking if freeaddrinfo is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_ws2tcpip
+      $curl_includes_sys_socket
+      $curl_includes_netdb
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "freeaddrinfo" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_freeaddrinfo="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_freeaddrinfo="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_freeaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if freeaddrinfo is compilable" >&5
+printf %s "checking if freeaddrinfo is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_ws2tcpip
+        $curl_includes_sys_socket
+        $curl_includes_netdb
+
+int main (void)
+{
+
+        freeaddrinfo(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_freeaddrinfo="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_freeaddrinfo="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_freeaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if freeaddrinfo usage allowed" >&5
+printf %s "checking if freeaddrinfo usage allowed... " >&6; }
+    if test "x$curl_disallow_freeaddrinfo" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_freeaddrinfo="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_freeaddrinfo="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if freeaddrinfo might be used" >&5
+printf %s "checking if freeaddrinfo might be used... " >&6; }
+  if test "$tst_links_freeaddrinfo" = "yes" &&
+     test "$tst_proto_freeaddrinfo" = "yes" &&
+     test "$tst_compi_freeaddrinfo" = "yes" &&
+     test "$tst_allow_freeaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_FREEADDRINFO 1" >>confdefs.h
+
+    curl_cv_func_freeaddrinfo="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_freeaddrinfo="no"
+  fi
+
+
+curl_includes_sys_xattr="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_XATTR_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_sys_xattr
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/xattr.h" "ac_cv_header_sys_xattr_h" "$curl_includes_sys_xattr
+"
+if test "x$ac_cv_header_sys_xattr_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_XATTR_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_fsetxattr="unknown"
+  tst_proto_fsetxattr="unknown"
+  tst_compi_fsetxattr="unknown"
+  tst_allow_fsetxattr="unknown"
+  tst_nargs_fsetxattr="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr can be linked" >&5
+printf %s "checking if fsetxattr can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define fsetxattr innocuous_fsetxattr
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef fsetxattr
+#ifdef __cplusplus
+extern "C"
+#endif
+char fsetxattr ();
+#if defined __stub_fsetxattr || defined __stub___fsetxattr
+choke me
+#endif
+
+int main (void)
+{
+return fsetxattr ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_fsetxattr="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_fsetxattr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_fsetxattr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr is prototyped" >&5
+printf %s "checking if fsetxattr is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_sys_xattr
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "fsetxattr" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_fsetxattr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_fsetxattr="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_fsetxattr" = "yes"; then
+    if test "$tst_nargs_fsetxattr" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr takes 5 args." >&5
+printf %s "checking if fsetxattr takes 5 args.... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_sys_xattr
+
+int main (void)
+{
+
+          if(0 != fsetxattr(0, 0, 0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_compi_fsetxattr="yes"
+        tst_nargs_fsetxattr="5"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_compi_fsetxattr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    if test "$tst_nargs_fsetxattr" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr takes 6 args." >&5
+printf %s "checking if fsetxattr takes 6 args.... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_sys_xattr
+
+int main (void)
+{
+
+          if(0 != fsetxattr(0, 0, 0, 0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_compi_fsetxattr="yes"
+        tst_nargs_fsetxattr="6"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_compi_fsetxattr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr is compilable" >&5
+printf %s "checking if fsetxattr is compilable... " >&6; }
+    if test "$tst_compi_fsetxattr" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+  fi
+  #
+  if test "$tst_compi_fsetxattr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr usage allowed" >&5
+printf %s "checking if fsetxattr usage allowed... " >&6; }
+    if test "x$curl_disallow_fsetxattr" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_fsetxattr="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_fsetxattr="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if fsetxattr might be used" >&5
+printf %s "checking if fsetxattr might be used... " >&6; }
+  if test "$tst_links_fsetxattr" = "yes" &&
+     test "$tst_proto_fsetxattr" = "yes" &&
+     test "$tst_compi_fsetxattr" = "yes" &&
+     test "$tst_allow_fsetxattr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_FSETXATTR 1" >>confdefs.h
+
+            #
+    if test "$tst_nargs_fsetxattr" -eq "5"; then
+
+printf "%s\n" "#define HAVE_FSETXATTR_5 1" >>confdefs.h
+
+    elif test "$tst_nargs_fsetxattr" -eq "6"; then
+
+printf "%s\n" "#define HAVE_FSETXATTR_6 1" >>confdefs.h
+
+    fi
+    #
+    curl_cv_func_fsetxattr="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_fsetxattr="no"
+  fi
+
+
+    #
+  tst_links_ftruncate="unknown"
+  tst_proto_ftruncate="unknown"
+  tst_compi_ftruncate="unknown"
+  tst_allow_ftruncate="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ftruncate can be linked" >&5
+printf %s "checking if ftruncate can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define ftruncate innocuous_ftruncate
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef ftruncate
+#ifdef __cplusplus
+extern "C"
+#endif
+char ftruncate ();
+#if defined __stub_ftruncate || defined __stub___ftruncate
+choke me
+#endif
+
+int main (void)
+{
+return ftruncate ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_ftruncate="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_ftruncate="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_ftruncate" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ftruncate is prototyped" >&5
+printf %s "checking if ftruncate is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_unistd
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "ftruncate" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_ftruncate="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_ftruncate="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_ftruncate" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ftruncate is compilable" >&5
+printf %s "checking if ftruncate is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_unistd
+
+int main (void)
+{
+
+        if(0 != ftruncate(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ftruncate="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ftruncate="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ftruncate" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ftruncate usage allowed" >&5
+printf %s "checking if ftruncate usage allowed... " >&6; }
+    if test "x$curl_disallow_ftruncate" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ftruncate="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ftruncate="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ftruncate might be used" >&5
+printf %s "checking if ftruncate might be used... " >&6; }
+  if test "$tst_links_ftruncate" = "yes" &&
+     test "$tst_proto_ftruncate" = "yes" &&
+     test "$tst_compi_ftruncate" = "yes" &&
+     test "$tst_allow_ftruncate" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_FTRUNCATE 1" >>confdefs.h
+
+    curl_cv_func_ftruncate="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ftruncate="no"
+  fi
+
+
+curl_includes_stdlib="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_STDLIB_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_stdlib
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$curl_includes_stdlib
+"
+if test "x$ac_cv_header_stdlib_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STDLIB_H 1" >>confdefs.h
+
+fi
+
+
+
+              #
+  tst_links_getaddrinfo="unknown"
+  tst_proto_getaddrinfo="unknown"
+  tst_compi_getaddrinfo="unknown"
+  tst_works_getaddrinfo="unknown"
+  tst_allow_getaddrinfo="unknown"
+  tst_tsafe_getaddrinfo="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo can be linked" >&5
+printf %s "checking if getaddrinfo can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_ws2tcpip
+      $curl_includes_sys_socket
+      $curl_includes_netdb
+
+int main (void)
+{
+
+      if(0 != getaddrinfo(0, 0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_getaddrinfo="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_getaddrinfo="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_getaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo is prototyped" >&5
+printf %s "checking if getaddrinfo is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_ws2tcpip
+      $curl_includes_sys_socket
+      $curl_includes_netdb
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getaddrinfo" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_getaddrinfo="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_getaddrinfo="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_getaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo is compilable" >&5
+printf %s "checking if getaddrinfo is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_ws2tcpip
+        $curl_includes_sys_socket
+        $curl_includes_netdb
+
+int main (void)
+{
+
+        if(0 != getaddrinfo(0, 0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_getaddrinfo="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_getaddrinfo="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_getaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo seems to work" >&5
+printf %s "checking if getaddrinfo seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_ws2tcpip
+        $curl_includes_stdlib
+        $curl_includes_string
+        $curl_includes_sys_socket
+        $curl_includes_netdb
+
+int main (void)
+{
+
+        struct addrinfo hints;
+        struct addrinfo *ai = 0;
+        int error;
+
+        #ifdef HAVE_WINSOCK2_H
+        WSADATA wsa;
+        if (WSAStartup(MAKEWORD(2,2), &wsa))
+                exit(2);
+        #endif
+
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_flags = AI_NUMERICHOST;
+        hints.ai_family = AF_UNSPEC;
+        hints.ai_socktype = SOCK_STREAM;
+        error = getaddrinfo("127.0.0.1", 0, &hints, &ai);
+        if(error || !ai)
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_getaddrinfo="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_getaddrinfo="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_ws2tcpip
+        $curl_includes_stdlib
+        $curl_includes_string
+        $curl_includes_sys_socket
+        $curl_includes_netdb
+
+int main (void)
+{
+
+        struct addrinfo hints;
+        struct addrinfo *ai = 0;
+        int error;
+
+        #ifdef HAVE_WINSOCK2_H
+        WSADATA wsa;
+        if (WSAStartup(MAKEWORD(2,2), &wsa))
+                exit(2);
+        #endif
+
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_flags = AI_NUMERICHOST;
+        hints.ai_family = AF_UNSPEC;
+        hints.ai_socktype = SOCK_STREAM;
+        error = getaddrinfo("127.0.0.1", 0, &hints, &ai);
+        if(error || !ai)
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_getaddrinfo="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_getaddrinfo="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_getaddrinfo" = "yes" &&
+    test "$tst_works_getaddrinfo" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo usage allowed" >&5
+printf %s "checking if getaddrinfo usage allowed... " >&6; }
+    if test "x$curl_disallow_getaddrinfo" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_getaddrinfo="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_getaddrinfo="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo might be used" >&5
+printf %s "checking if getaddrinfo might be used... " >&6; }
+  if test "$tst_links_getaddrinfo" = "yes" &&
+     test "$tst_proto_getaddrinfo" = "yes" &&
+     test "$tst_compi_getaddrinfo" = "yes" &&
+     test "$tst_allow_getaddrinfo" = "yes" &&
+     test "$tst_works_getaddrinfo" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETADDRINFO 1" >>confdefs.h
+
+    curl_cv_func_getaddrinfo="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_getaddrinfo="no"
+    curl_cv_func_getaddrinfo_threadsafe="no"
+  fi
+  #
+  if test "$curl_cv_func_getaddrinfo" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getaddrinfo is threadsafe" >&5
+printf %s "checking if getaddrinfo is threadsafe... " >&6; }
+    case $host_os in
+      aix[1234].* | aix5.[01].*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      aix*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      darwin[12345].*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      darwin*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      freebsd[1234].* | freebsd5.[1234]*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      freebsd*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      hpux[123456789].* | hpux10.* | hpux11.0* | hpux11.10*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      hpux*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      midnightbsd*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      netbsd[123].*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      netbsd*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+      *bsd*)
+                tst_tsafe_getaddrinfo="no"
+        ;;
+      solaris2*)
+                tst_tsafe_getaddrinfo="yes"
+        ;;
+    esac
+    if test "$tst_tsafe_getaddrinfo" = "unknown" &&
+       test "$curl_cv_native_windows" = "yes"; then
+      tst_tsafe_getaddrinfo="yes"
+    fi
+    if test "$tst_tsafe_getaddrinfo" = "unknown"; then
+
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_sys_socket
+        $curl_includes_netdb
+
+int main (void)
+{
+#ifdef h_errno
+  return 0;
+#else
+  force compilation error
+#endif
+}
+
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+    tst_symbol_defined="yes"
+
+else $as_nop
+
+    tst_symbol_defined="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  if test "$tst_symbol_defined" = "yes"; then
+    curl_cv_have_def_h_errno=yes
+
+  else
+    curl_cv_have_def_h_errno=no
+
+  fi
+
+      if test "$curl_cv_have_def_h_errno" = "yes"; then
+        tst_h_errno_macro="yes"
+      else
+        tst_h_errno_macro="no"
+      fi
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_sys_socket
+          $curl_includes_netdb
+
+int main (void)
+{
+
+          h_errno = 2;
+          if(0 != h_errno)
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        tst_h_errno_modifiable_lvalue="yes"
+
+else $as_nop
+
+        tst_h_errno_modifiable_lvalue="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)
+          return 0;
+#elif defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 700)
+          return 0;
+#else
+          force compilation error
+#endif
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        tst_h_errno_sbs_issue_7="yes"
+
+else $as_nop
+
+        tst_h_errno_sbs_issue_7="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+      if test "$tst_h_errno_macro" = "no" &&
+         test "$tst_h_errno_modifiable_lvalue" = "no" &&
+         test "$tst_h_errno_sbs_issue_7" = "no"; then
+        tst_tsafe_getaddrinfo="no"
+      else
+        tst_tsafe_getaddrinfo="yes"
+      fi
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_tsafe_getaddrinfo" >&5
+printf "%s\n" "$tst_tsafe_getaddrinfo" >&6; }
+    if test "$tst_tsafe_getaddrinfo" = "yes"; then
+
+printf "%s\n" "#define HAVE_GETADDRINFO_THREADSAFE 1" >>confdefs.h
+
+      curl_cv_func_getaddrinfo_threadsafe="yes"
+    else
+      curl_cv_func_getaddrinfo_threadsafe="no"
+    fi
+  fi
+
+
+      #
+  tst_links_gethostbyname="unknown"
+  tst_proto_gethostbyname="unknown"
+  tst_compi_gethostbyname="unknown"
+  tst_allow_gethostbyname="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname can be linked" >&5
+printf %s "checking if gethostbyname can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_netdb
+
+int main (void)
+{
+
+      if(0 != gethostbyname(0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_gethostbyname="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_gethostbyname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_gethostbyname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname is prototyped" >&5
+printf %s "checking if gethostbyname is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_netdb
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gethostbyname" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_gethostbyname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_gethostbyname="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_gethostbyname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname is compilable" >&5
+printf %s "checking if gethostbyname is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_netdb
+
+int main (void)
+{
+
+        if(0 != gethostbyname(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_gethostbyname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_gethostbyname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_gethostbyname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname usage allowed" >&5
+printf %s "checking if gethostbyname usage allowed... " >&6; }
+    if test "x$curl_disallow_gethostbyname" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_gethostbyname="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_gethostbyname="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname might be used" >&5
+printf %s "checking if gethostbyname might be used... " >&6; }
+  if test "$tst_links_gethostbyname" = "yes" &&
+     test "$tst_proto_gethostbyname" = "yes" &&
+     test "$tst_compi_gethostbyname" = "yes" &&
+     test "$tst_allow_gethostbyname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETHOSTBYNAME 1" >>confdefs.h
+
+    curl_cv_func_gethostbyname="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_gethostbyname="no"
+  fi
+
+
+    #
+  tst_links_gethostbyname_r="unknown"
+  tst_proto_gethostbyname_r="unknown"
+  tst_compi_gethostbyname_r="unknown"
+  tst_allow_gethostbyname_r="unknown"
+  tst_nargs_gethostbyname_r="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r can be linked" >&5
+printf %s "checking if gethostbyname_r can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gethostbyname_r innocuous_gethostbyname_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef gethostbyname_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname_r ();
+#if defined __stub_gethostbyname_r || defined __stub___gethostbyname_r
+choke me
+#endif
+
+int main (void)
+{
+return gethostbyname_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_gethostbyname_r="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_gethostbyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_gethostbyname_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r is prototyped" >&5
+printf %s "checking if gethostbyname_r is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_netdb
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gethostbyname_r" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_gethostbyname_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_gethostbyname_r="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_gethostbyname_r" = "yes"; then
+    if test "$tst_nargs_gethostbyname_r" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r takes 3 args." >&5
+printf %s "checking if gethostbyname_r takes 3 args.... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_netdb
+
+int main (void)
+{
+
+          if(0 != gethostbyname_r(0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_compi_gethostbyname_r="yes"
+        tst_nargs_gethostbyname_r="3"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_compi_gethostbyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    if test "$tst_nargs_gethostbyname_r" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r takes 5 args." >&5
+printf %s "checking if gethostbyname_r takes 5 args.... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_netdb
+
+int main (void)
+{
+
+          if(0 != gethostbyname_r(0, 0, 0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_compi_gethostbyname_r="yes"
+        tst_nargs_gethostbyname_r="5"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_compi_gethostbyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    if test "$tst_nargs_gethostbyname_r" = "unknown"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r takes 6 args." >&5
+printf %s "checking if gethostbyname_r takes 6 args.... " >&6; }
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+          $curl_includes_netdb
+
+int main (void)
+{
+
+          if(0 != gethostbyname_r(0, 0, 0, 0, 0, 0))
+            return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_compi_gethostbyname_r="yes"
+        tst_nargs_gethostbyname_r="6"
+
+else $as_nop
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_compi_gethostbyname_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    fi
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r is compilable" >&5
+printf %s "checking if gethostbyname_r is compilable... " >&6; }
+    if test "$tst_compi_gethostbyname_r" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    fi
+  fi
+  #
+  if test "$tst_compi_gethostbyname_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r usage allowed" >&5
+printf %s "checking if gethostbyname_r usage allowed... " >&6; }
+    if test "x$curl_disallow_gethostbyname_r" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_gethostbyname_r="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_gethostbyname_r="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostbyname_r might be used" >&5
+printf %s "checking if gethostbyname_r might be used... " >&6; }
+  if test "$tst_links_gethostbyname_r" = "yes" &&
+     test "$tst_proto_gethostbyname_r" = "yes" &&
+     test "$tst_compi_gethostbyname_r" = "yes" &&
+     test "$tst_allow_gethostbyname_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETHOSTBYNAME_R 1" >>confdefs.h
+
+            #
+    if test "$tst_nargs_gethostbyname_r" -eq "3"; then
+
+printf "%s\n" "#define HAVE_GETHOSTBYNAME_R_3 1" >>confdefs.h
+
+    elif test "$tst_nargs_gethostbyname_r" -eq "5"; then
+
+printf "%s\n" "#define HAVE_GETHOSTBYNAME_R_5 1" >>confdefs.h
+
+    elif test "$tst_nargs_gethostbyname_r" -eq "6"; then
+
+printf "%s\n" "#define HAVE_GETHOSTBYNAME_R_6 1" >>confdefs.h
+
+    fi
+    #
+    curl_cv_func_gethostbyname_r="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_gethostbyname_r="no"
+  fi
+
+
+curl_preprocess_callconv="\
+/* preprocess start */
+#ifdef HAVE_WINDOWS_H
+#  define FUNCALLCONV __stdcall
+#else
+#  define FUNCALLCONV
+#endif
+/* preprocess end */"
+
+
+          #
+  tst_links_gethostname="unknown"
+  tst_proto_gethostname="unknown"
+  tst_compi_gethostname="unknown"
+  tst_allow_gethostname="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostname can be linked" >&5
+printf %s "checking if gethostname can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_unistd
+
+int main (void)
+{
+
+      if(0 != gethostname(0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_gethostname="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_gethostname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_gethostname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostname is prototyped" >&5
+printf %s "checking if gethostname is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_unistd
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gethostname" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_gethostname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_gethostname="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_gethostname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostname is compilable" >&5
+printf %s "checking if gethostname is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_unistd
+
+int main (void)
+{
+
+        if(0 != gethostname(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_gethostname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_gethostname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_gethostname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostname arg 2 data type" >&5
+printf %s "checking for gethostname arg 2 data type... " >&6; }
+    tst_gethostname_type_arg2="unknown"
+    for tst_arg1 in 'char *' 'unsigned char *' 'void *'; do
+      for tst_arg2 in 'int' 'unsigned int' 'size_t'; do
+        if test "$tst_gethostname_type_arg2" = "unknown"; then
+          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+              $curl_includes_winsock2
+      $curl_includes_bsdsocket
+              $curl_includes_unistd
+              $curl_preprocess_callconv
+              extern int FUNCALLCONV gethostname($tst_arg1, $tst_arg2);
+
+int main (void)
+{
+
+              if(0 != gethostname(0, 0))
+                return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+            tst_gethostname_type_arg2="$tst_arg2"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+        fi
+      done
+    done
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_gethostname_type_arg2" >&5
+printf "%s\n" "$tst_gethostname_type_arg2" >&6; }
+    if test "$tst_gethostname_type_arg2" != "unknown"; then
+
+printf "%s\n" "#define GETHOSTNAME_TYPE_ARG2 $tst_gethostname_type_arg2" >>confdefs.h
+
+    fi
+  fi
+  #
+  if test "$tst_compi_gethostname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostname usage allowed" >&5
+printf %s "checking if gethostname usage allowed... " >&6; }
+    if test "x$curl_disallow_gethostname" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_gethostname="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_gethostname="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gethostname might be used" >&5
+printf %s "checking if gethostname might be used... " >&6; }
+  if test "$tst_links_gethostname" = "yes" &&
+     test "$tst_proto_gethostname" = "yes" &&
+     test "$tst_compi_gethostname" = "yes" &&
+     test "$tst_allow_gethostname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETHOSTNAME 1" >>confdefs.h
+
+    curl_cv_func_gethostname="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_gethostname="no"
+  fi
+
+
+          #
+  tst_links_getpeername="unknown"
+  tst_proto_getpeername="unknown"
+  tst_compi_getpeername="unknown"
+  tst_allow_getpeername="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getpeername can be linked" >&5
+printf %s "checking if getpeername can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+int main (void)
+{
+
+      if(0 != getpeername(0, (void *)0, (void *)0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_getpeername="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_getpeername="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_getpeername" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getpeername is prototyped" >&5
+printf %s "checking if getpeername is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getpeername" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_getpeername="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_getpeername="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_getpeername" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getpeername is compilable" >&5
+printf %s "checking if getpeername is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+        $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+
+int main (void)
+{
+
+        if(0 != getpeername(0, (void *)0, (void *)0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_getpeername="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_getpeername="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_getpeername" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getpeername usage allowed" >&5
+printf %s "checking if getpeername usage allowed... " >&6; }
+    if test "x$curl_disallow_getpeername" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_getpeername="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_getpeername="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getpeername might be used" >&5
+printf %s "checking if getpeername might be used... " >&6; }
+  if test "$tst_links_getpeername" = "yes" &&
+     test "$tst_proto_getpeername" = "yes" &&
+     test "$tst_compi_getpeername" = "yes" &&
+     test "$tst_allow_getpeername" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETPEERNAME 1" >>confdefs.h
+
+    curl_cv_func_getpeername="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_getpeername="no"
+  fi
+
+
+          #
+  tst_links_getsockname="unknown"
+  tst_proto_getsockname="unknown"
+  tst_compi_getsockname="unknown"
+  tst_allow_getsockname="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getsockname can be linked" >&5
+printf %s "checking if getsockname can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+int main (void)
+{
+
+      if(0 != getsockname(0, (void *)0, (void *)0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_getsockname="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_getsockname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_getsockname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getsockname is prototyped" >&5
+printf %s "checking if getsockname is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getsockname" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_getsockname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_getsockname="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_getsockname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getsockname is compilable" >&5
+printf %s "checking if getsockname is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+        $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+
+int main (void)
+{
+
+        if(0 != getsockname(0, (void *)0, (void *)0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_getsockname="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_getsockname="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_getsockname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getsockname usage allowed" >&5
+printf %s "checking if getsockname usage allowed... " >&6; }
+    if test "x$curl_disallow_getsockname" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_getsockname="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_getsockname="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getsockname might be used" >&5
+printf %s "checking if getsockname might be used... " >&6; }
+  if test "$tst_links_getsockname" = "yes" &&
+     test "$tst_proto_getsockname" = "yes" &&
+     test "$tst_compi_getsockname" = "yes" &&
+     test "$tst_allow_getsockname" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETSOCKNAME 1" >>confdefs.h
+
+    curl_cv_func_getsockname="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_getsockname="no"
+  fi
+
+
+curl_includes_netif="\
+/* includes start */
+#ifdef HAVE_NET_IF_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "net/if.h" "ac_cv_header_net_if_h" "$curl_includes_netif
+"
+if test "x$ac_cv_header_net_if_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NET_IF_H 1" >>confdefs.h
+
+fi
+
+
+
+        #
+  tst_links_if_nametoindex="unknown"
+  tst_proto_if_nametoindex="unknown"
+  tst_compi_if_nametoindex="unknown"
+  tst_allow_if_nametoindex="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if if_nametoindex can be linked" >&5
+printf %s "checking if if_nametoindex can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      #include 
+
+int main (void)
+{
+
+      if(0 != if_nametoindex(""))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_if_nametoindex="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_if_nametoindex="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_if_nametoindex" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if if_nametoindex is prototyped" >&5
+printf %s "checking if if_nametoindex is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_netif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "if_nametoindex" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_if_nametoindex="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_if_nametoindex="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_if_nametoindex" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if if_nametoindex is compilable" >&5
+printf %s "checking if if_nametoindex is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+        $curl_includes_netif
+
+int main (void)
+{
+
+        if(0 != if_nametoindex(""))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_if_nametoindex="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_if_nametoindex="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_if_nametoindex" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if if_nametoindex usage allowed" >&5
+printf %s "checking if if_nametoindex usage allowed... " >&6; }
+    if test "x$curl_disallow_if_nametoindex" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_if_nametoindex="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_if_nametoindex="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if if_nametoindex might be used" >&5
+printf %s "checking if if_nametoindex might be used... " >&6; }
+  if test "$tst_links_if_nametoindex" = "yes" &&
+     test "$tst_proto_if_nametoindex" = "yes" &&
+     test "$tst_compi_if_nametoindex" = "yes" &&
+     test "$tst_allow_if_nametoindex" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IF_NAMETOINDEX 1" >>confdefs.h
+
+    curl_cv_func_if_nametoindex="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_if_nametoindex="no"
+  fi
+
+
+curl_includes_ifaddrs="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#  include 
+#endif
+#ifdef HAVE_IFADDRS_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_ifaddrs
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$curl_includes_ifaddrs
+"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netinet/in.h" "ac_cv_header_netinet_in_h" "$curl_includes_ifaddrs
+"
+if test "x$ac_cv_header_netinet_in_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETINET_IN_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "ifaddrs.h" "ac_cv_header_ifaddrs_h" "$curl_includes_ifaddrs
+"
+if test "x$ac_cv_header_ifaddrs_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_IFADDRS_H 1" >>confdefs.h
+
+fi
+
+
+
+      #
+  tst_links_getifaddrs="unknown"
+  tst_proto_getifaddrs="unknown"
+  tst_compi_getifaddrs="unknown"
+  tst_works_getifaddrs="unknown"
+  tst_allow_getifaddrs="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs can be linked" >&5
+printf %s "checking if getifaddrs can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define getifaddrs innocuous_getifaddrs
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef getifaddrs
+#ifdef __cplusplus
+extern "C"
+#endif
+char getifaddrs ();
+#if defined __stub_getifaddrs || defined __stub___getifaddrs
+choke me
+#endif
+
+int main (void)
+{
+return getifaddrs ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_getifaddrs="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_getifaddrs="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_getifaddrs" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs is prototyped" >&5
+printf %s "checking if getifaddrs is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_ifaddrs
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "getifaddrs" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_getifaddrs="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_getifaddrs="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_getifaddrs" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs is compilable" >&5
+printf %s "checking if getifaddrs is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_ifaddrs
+
+int main (void)
+{
+
+        if(0 != getifaddrs(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_getifaddrs="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_getifaddrs="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_getifaddrs" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs seems to work" >&5
+printf %s "checking if getifaddrs seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_ifaddrs
+
+int main (void)
+{
+
+        struct ifaddrs *ifa = 0;
+        int error;
+
+        error = getifaddrs(&ifa);
+        if(error || !ifa)
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_getifaddrs="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_getifaddrs="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_ifaddrs
+
+int main (void)
+{
+
+        struct ifaddrs *ifa = 0;
+        int error;
+
+        error = getifaddrs(&ifa);
+        if(error || !ifa)
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_getifaddrs="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_getifaddrs="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_getifaddrs" = "yes" &&
+    test "$tst_works_getifaddrs" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs usage allowed" >&5
+printf %s "checking if getifaddrs usage allowed... " >&6; }
+    if test "x$curl_disallow_getifaddrs" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_getifaddrs="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_getifaddrs="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if getifaddrs might be used" >&5
+printf %s "checking if getifaddrs might be used... " >&6; }
+  if test "$tst_links_getifaddrs" = "yes" &&
+     test "$tst_proto_getifaddrs" = "yes" &&
+     test "$tst_compi_getifaddrs" = "yes" &&
+     test "$tst_allow_getifaddrs" = "yes" &&
+     test "$tst_works_getifaddrs" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GETIFADDRS 1" >>confdefs.h
+
+    curl_cv_func_getifaddrs="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_getifaddrs="no"
+  fi
+
+
+curl_includes_time="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#  include 
+#endif
+#include 
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_time
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$curl_includes_time
+"
+if test "x$ac_cv_header_sys_time_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TIME_H 1" >>confdefs.h
+
+fi
+
+
+
+      #
+  tst_links_gmtime_r="unknown"
+  tst_proto_gmtime_r="unknown"
+  tst_compi_gmtime_r="unknown"
+  tst_works_gmtime_r="unknown"
+  tst_allow_gmtime_r="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r can be linked" >&5
+printf %s "checking if gmtime_r can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define gmtime_r innocuous_gmtime_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef gmtime_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char gmtime_r ();
+#if defined __stub_gmtime_r || defined __stub___gmtime_r
+choke me
+#endif
+
+int main (void)
+{
+return gmtime_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_gmtime_r="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_gmtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_gmtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r is prototyped" >&5
+printf %s "checking if gmtime_r is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_time
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "gmtime_r" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_gmtime_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_gmtime_r="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_gmtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r is compilable" >&5
+printf %s "checking if gmtime_r is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_time
+
+int main (void)
+{
+
+        if(0 != gmtime_r(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_gmtime_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_gmtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_gmtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r seems to work" >&5
+printf %s "checking if gmtime_r seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_time
+
+int main (void)
+{
+
+        time_t local = 1170352587;
+        struct tm *gmt = 0;
+        struct tm result;
+        gmt = gmtime_r(&local, &result);
+        if(gmt)
+          exit(0);
+        else
+          exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_gmtime_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_gmtime_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_time
+
+int main (void)
+{
+
+        time_t local = 1170352587;
+        struct tm *gmt = 0;
+        struct tm result;
+        gmt = gmtime_r(&local, &result);
+        if(gmt)
+          exit(0);
+        else
+          exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_gmtime_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_gmtime_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_gmtime_r" = "yes" &&
+    test "$tst_works_gmtime_r" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r usage allowed" >&5
+printf %s "checking if gmtime_r usage allowed... " >&6; }
+    if test "x$curl_disallow_gmtime_r" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_gmtime_r="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_gmtime_r="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if gmtime_r might be used" >&5
+printf %s "checking if gmtime_r might be used... " >&6; }
+  if test "$tst_links_gmtime_r" = "yes" &&
+     test "$tst_proto_gmtime_r" = "yes" &&
+     test "$tst_compi_gmtime_r" = "yes" &&
+     test "$tst_allow_gmtime_r" = "yes" &&
+     test "$tst_works_gmtime_r" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_GMTIME_R 1" >>confdefs.h
+
+    curl_cv_func_gmtime_r="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_gmtime_r="no"
+  fi
+
+
+curl_includes_arpa_inet="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#  include 
+#endif
+#ifdef HAVE_ARPA_INET_H
+#  include 
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include 
+#include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_arpa_inet
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$curl_includes_arpa_inet
+"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "netinet/in.h" "ac_cv_header_netinet_in_h" "$curl_includes_arpa_inet
+"
+if test "x$ac_cv_header_netinet_in_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_NETINET_IN_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "arpa/inet.h" "ac_cv_header_arpa_inet_h" "$curl_includes_arpa_inet
+"
+if test "x$ac_cv_header_arpa_inet_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_ARPA_INET_H 1" >>confdefs.h
+
+fi
+
+
+
+        #
+  tst_links_inet_ntop="unknown"
+  tst_proto_inet_ntop="unknown"
+  tst_compi_inet_ntop="unknown"
+  tst_works_inet_ntop="unknown"
+  tst_allow_inet_ntop="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop can be linked" >&5
+printf %s "checking if inet_ntop can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define inet_ntop innocuous_inet_ntop
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef inet_ntop
+#ifdef __cplusplus
+extern "C"
+#endif
+char inet_ntop ();
+#if defined __stub_inet_ntop || defined __stub___inet_ntop
+choke me
+#endif
+
+int main (void)
+{
+return inet_ntop ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_inet_ntop="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_inet_ntop="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_inet_ntop" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop is prototyped" >&5
+printf %s "checking if inet_ntop is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_arpa_inet
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "inet_ntop" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_inet_ntop="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_inet_ntop="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_inet_ntop" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop is compilable" >&5
+printf %s "checking if inet_ntop is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_arpa_inet
+
+int main (void)
+{
+
+        if(0 != inet_ntop(0, 0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_inet_ntop="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_inet_ntop="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_inet_ntop" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop seems to work" >&5
+printf %s "checking if inet_ntop seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_arpa_inet
+        $curl_includes_string
+
+int main (void)
+{
+
+        char ipv6res[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
+        char ipv4res[sizeof "255.255.255.255"];
+        unsigned char ipv6a[26];
+        unsigned char ipv4a[5];
+        char *ipv6ptr = 0;
+        char *ipv4ptr = 0;
+        /* - */
+        ipv4res[0] = '\0';
+        ipv4a[0] = 0xc0;
+        ipv4a[1] = 0xa8;
+        ipv4a[2] = 0x64;
+        ipv4a[3] = 0x01;
+        ipv4a[4] = 0x01;
+        /* - */
+        ipv4ptr = inet_ntop(AF_INET, ipv4a, ipv4res, sizeof(ipv4res));
+        if(!ipv4ptr)
+          exit(1); /* fail */
+        if(ipv4ptr != ipv4res)
+          exit(1); /* fail */
+        if(!ipv4ptr[0])
+          exit(1); /* fail */
+        if(memcmp(ipv4res, "192.168.100.1", 13) != 0)
+          exit(1); /* fail */
+        /* - */
+        ipv6res[0] = '\0';
+        memset(ipv6a, 0, sizeof(ipv6a));
+        ipv6a[0] = 0xfe;
+        ipv6a[1] = 0x80;
+        ipv6a[8] = 0x02;
+        ipv6a[9] = 0x14;
+        ipv6a[10] = 0x4f;
+        ipv6a[11] = 0xff;
+        ipv6a[12] = 0xfe;
+        ipv6a[13] = 0x0b;
+        ipv6a[14] = 0x76;
+        ipv6a[15] = 0xc8;
+        ipv6a[25] = 0x01;
+        /* - */
+        ipv6ptr = inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res));
+        if(!ipv6ptr)
+          exit(1); /* fail */
+        if(ipv6ptr != ipv6res)
+          exit(1); /* fail */
+        if(!ipv6ptr[0])
+          exit(1); /* fail */
+        if(memcmp(ipv6res, "fe80::214:4fff:fe0b:76c8", 24) != 0)
+          exit(1); /* fail */
+        /* - */
+        exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_inet_ntop="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_inet_ntop="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_arpa_inet
+        $curl_includes_string
+
+int main (void)
+{
+
+        char ipv6res[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
+        char ipv4res[sizeof "255.255.255.255"];
+        unsigned char ipv6a[26];
+        unsigned char ipv4a[5];
+        char *ipv6ptr = 0;
+        char *ipv4ptr = 0;
+        /* - */
+        ipv4res[0] = '\0';
+        ipv4a[0] = 0xc0;
+        ipv4a[1] = 0xa8;
+        ipv4a[2] = 0x64;
+        ipv4a[3] = 0x01;
+        ipv4a[4] = 0x01;
+        /* - */
+        ipv4ptr = inet_ntop(AF_INET, ipv4a, ipv4res, sizeof(ipv4res));
+        if(!ipv4ptr)
+          exit(1); /* fail */
+        if(ipv4ptr != ipv4res)
+          exit(1); /* fail */
+        if(!ipv4ptr[0])
+          exit(1); /* fail */
+        if(memcmp(ipv4res, "192.168.100.1", 13) != 0)
+          exit(1); /* fail */
+        /* - */
+        ipv6res[0] = '\0';
+        memset(ipv6a, 0, sizeof(ipv6a));
+        ipv6a[0] = 0xfe;
+        ipv6a[1] = 0x80;
+        ipv6a[8] = 0x02;
+        ipv6a[9] = 0x14;
+        ipv6a[10] = 0x4f;
+        ipv6a[11] = 0xff;
+        ipv6a[12] = 0xfe;
+        ipv6a[13] = 0x0b;
+        ipv6a[14] = 0x76;
+        ipv6a[15] = 0xc8;
+        ipv6a[25] = 0x01;
+        /* - */
+        ipv6ptr = inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res));
+        if(!ipv6ptr)
+          exit(1); /* fail */
+        if(ipv6ptr != ipv6res)
+          exit(1); /* fail */
+        if(!ipv6ptr[0])
+          exit(1); /* fail */
+        if(memcmp(ipv6res, "fe80::214:4fff:fe0b:76c8", 24) != 0)
+          exit(1); /* fail */
+        /* - */
+        exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_inet_ntop="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_inet_ntop="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_inet_ntop" = "yes" &&
+    test "$tst_works_inet_ntop" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop usage allowed" >&5
+printf %s "checking if inet_ntop usage allowed... " >&6; }
+    if test "x$curl_disallow_inet_ntop" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_inet_ntop="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_inet_ntop="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_ntop might be used" >&5
+printf %s "checking if inet_ntop might be used... " >&6; }
+  if test "$tst_links_inet_ntop" = "yes" &&
+     test "$tst_proto_inet_ntop" = "yes" &&
+     test "$tst_compi_inet_ntop" = "yes" &&
+     test "$tst_allow_inet_ntop" = "yes" &&
+     test "$tst_works_inet_ntop" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_INET_NTOP 1" >>confdefs.h
+
+    curl_cv_func_inet_ntop="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_inet_ntop="no"
+  fi
+
+
+        #
+  tst_links_inet_pton="unknown"
+  tst_proto_inet_pton="unknown"
+  tst_compi_inet_pton="unknown"
+  tst_works_inet_pton="unknown"
+  tst_allow_inet_pton="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton can be linked" >&5
+printf %s "checking if inet_pton can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define inet_pton innocuous_inet_pton
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef inet_pton
+#ifdef __cplusplus
+extern "C"
+#endif
+char inet_pton ();
+#if defined __stub_inet_pton || defined __stub___inet_pton
+choke me
+#endif
+
+int main (void)
+{
+return inet_pton ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_inet_pton="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_inet_pton="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_inet_pton" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton is prototyped" >&5
+printf %s "checking if inet_pton is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_arpa_inet
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "inet_pton" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_inet_pton="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_inet_pton="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_inet_pton" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton is compilable" >&5
+printf %s "checking if inet_pton is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_arpa_inet
+
+int main (void)
+{
+
+        if(0 != inet_pton(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_inet_pton="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_inet_pton="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_inet_pton" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton seems to work" >&5
+printf %s "checking if inet_pton seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_arpa_inet
+        $curl_includes_string
+
+int main (void)
+{
+
+        unsigned char ipv6a[16+1];
+        unsigned char ipv4a[4+1];
+        const char *ipv6src = "fe80::214:4fff:fe0b:76c8";
+        const char *ipv4src = "192.168.100.1";
+        /* - */
+        memset(ipv4a, 1, sizeof(ipv4a));
+        if(1 != inet_pton(AF_INET, ipv4src, ipv4a))
+          exit(1); /* fail */
+        /* - */
+        if( (ipv4a[0] != 0xc0) ||
+            (ipv4a[1] != 0xa8) ||
+            (ipv4a[2] != 0x64) ||
+            (ipv4a[3] != 0x01) ||
+            (ipv4a[4] != 0x01) )
+          exit(1); /* fail */
+        /* - */
+        memset(ipv6a, 1, sizeof(ipv6a));
+        if(1 != inet_pton(AF_INET6, ipv6src, ipv6a))
+          exit(1); /* fail */
+        /* - */
+        if( (ipv6a[0]  != 0xfe) ||
+            (ipv6a[1]  != 0x80) ||
+            (ipv6a[8]  != 0x02) ||
+            (ipv6a[9]  != 0x14) ||
+            (ipv6a[10] != 0x4f) ||
+            (ipv6a[11] != 0xff) ||
+            (ipv6a[12] != 0xfe) ||
+            (ipv6a[13] != 0x0b) ||
+            (ipv6a[14] != 0x76) ||
+            (ipv6a[15] != 0xc8) ||
+            (ipv6a[16] != 0x01) )
+          exit(1); /* fail */
+        /* - */
+        if( (ipv6a[2]  != 0x0) ||
+            (ipv6a[3]  != 0x0) ||
+            (ipv6a[4]  != 0x0) ||
+            (ipv6a[5]  != 0x0) ||
+            (ipv6a[6]  != 0x0) ||
+            (ipv6a[7]  != 0x0) )
+          exit(1); /* fail */
+        /* - */
+        exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_inet_pton="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_inet_pton="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_arpa_inet
+        $curl_includes_string
+
+int main (void)
+{
+
+        unsigned char ipv6a[16+1];
+        unsigned char ipv4a[4+1];
+        const char *ipv6src = "fe80::214:4fff:fe0b:76c8";
+        const char *ipv4src = "192.168.100.1";
+        /* - */
+        memset(ipv4a, 1, sizeof(ipv4a));
+        if(1 != inet_pton(AF_INET, ipv4src, ipv4a))
+          exit(1); /* fail */
+        /* - */
+        if( (ipv4a[0] != 0xc0) ||
+            (ipv4a[1] != 0xa8) ||
+            (ipv4a[2] != 0x64) ||
+            (ipv4a[3] != 0x01) ||
+            (ipv4a[4] != 0x01) )
+          exit(1); /* fail */
+        /* - */
+        memset(ipv6a, 1, sizeof(ipv6a));
+        if(1 != inet_pton(AF_INET6, ipv6src, ipv6a))
+          exit(1); /* fail */
+        /* - */
+        if( (ipv6a[0]  != 0xfe) ||
+            (ipv6a[1]  != 0x80) ||
+            (ipv6a[8]  != 0x02) ||
+            (ipv6a[9]  != 0x14) ||
+            (ipv6a[10] != 0x4f) ||
+            (ipv6a[11] != 0xff) ||
+            (ipv6a[12] != 0xfe) ||
+            (ipv6a[13] != 0x0b) ||
+            (ipv6a[14] != 0x76) ||
+            (ipv6a[15] != 0xc8) ||
+            (ipv6a[16] != 0x01) )
+          exit(1); /* fail */
+        /* - */
+        if( (ipv6a[2]  != 0x0) ||
+            (ipv6a[3]  != 0x0) ||
+            (ipv6a[4]  != 0x0) ||
+            (ipv6a[5]  != 0x0) ||
+            (ipv6a[6]  != 0x0) ||
+            (ipv6a[7]  != 0x0) )
+          exit(1); /* fail */
+        /* - */
+        exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_inet_pton="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_inet_pton="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_inet_pton" = "yes" &&
+    test "$tst_works_inet_pton" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton usage allowed" >&5
+printf %s "checking if inet_pton usage allowed... " >&6; }
+    if test "x$curl_disallow_inet_pton" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_inet_pton="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_inet_pton="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if inet_pton might be used" >&5
+printf %s "checking if inet_pton might be used... " >&6; }
+  if test "$tst_links_inet_pton" = "yes" &&
+     test "$tst_proto_inet_pton" = "yes" &&
+     test "$tst_compi_inet_pton" = "yes" &&
+     test "$tst_allow_inet_pton" = "yes" &&
+     test "$tst_works_inet_pton" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_INET_PTON 1" >>confdefs.h
+
+    curl_cv_func_inet_pton="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_inet_pton="no"
+  fi
+
+
+curl_includes_stropts="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_UNISTD_H
+#  include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#  include 
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#  include 
+#endif
+#ifdef HAVE_STROPTS_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_stropts
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "unistd.h" "ac_cv_header_unistd_h" "$curl_includes_stropts
+"
+if test "x$ac_cv_header_unistd_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_UNISTD_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$curl_includes_stropts
+"
+if test "x$ac_cv_header_sys_socket_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_SOCKET_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/ioctl.h" "ac_cv_header_sys_ioctl_h" "$curl_includes_stropts
+"
+if test "x$ac_cv_header_sys_ioctl_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_IOCTL_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "stropts.h" "ac_cv_header_stropts_h" "$curl_includes_stropts
+"
+if test "x$ac_cv_header_stropts_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STROPTS_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_ioctl="unknown"
+  tst_proto_ioctl="unknown"
+  tst_compi_ioctl="unknown"
+  tst_allow_ioctl="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl can be linked" >&5
+printf %s "checking if ioctl can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define ioctl innocuous_ioctl
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef ioctl
+#ifdef __cplusplus
+extern "C"
+#endif
+char ioctl ();
+#if defined __stub_ioctl || defined __stub___ioctl
+choke me
+#endif
+
+int main (void)
+{
+return ioctl ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_ioctl="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_ioctl="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl is prototyped" >&5
+printf %s "checking if ioctl is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_stropts
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "ioctl" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_ioctl="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_ioctl="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl is compilable" >&5
+printf %s "checking if ioctl is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stropts
+
+int main (void)
+{
+
+        if(0 != ioctl(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctl="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctl="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl usage allowed" >&5
+printf %s "checking if ioctl usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctl" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctl="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctl="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl might be used" >&5
+printf %s "checking if ioctl might be used... " >&6; }
+  if test "$tst_links_ioctl" = "yes" &&
+     test "$tst_proto_ioctl" = "yes" &&
+     test "$tst_compi_ioctl" = "yes" &&
+     test "$tst_allow_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTL 1" >>confdefs.h
+
+    curl_cv_func_ioctl="yes"
+
+  #
+  tst_compi_ioctl_fionbio="unknown"
+  tst_allow_ioctl_fionbio="unknown"
+  #
+  if test "$curl_cv_func_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl FIONBIO is compilable" >&5
+printf %s "checking if ioctl FIONBIO is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stropts
+
+int main (void)
+{
+
+        int flags = 0;
+        if(0 != ioctl(0, FIONBIO, &flags))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctl_fionbio="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctl_fionbio="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctl_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl FIONBIO usage allowed" >&5
+printf %s "checking if ioctl FIONBIO usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctl_fionbio" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctl_fionbio="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctl_fionbio="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl FIONBIO might be used" >&5
+printf %s "checking if ioctl FIONBIO might be used... " >&6; }
+  if test "$tst_compi_ioctl_fionbio" = "yes" &&
+     test "$tst_allow_ioctl_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTL_FIONBIO 1" >>confdefs.h
+
+    curl_cv_func_ioctl_fionbio="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctl_fionbio="no"
+  fi
+
+
+  #
+  tst_compi_ioctl_siocgifaddr="unknown"
+  tst_allow_ioctl_siocgifaddr="unknown"
+  #
+  if test "$curl_cv_func_ioctl" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl SIOCGIFADDR is compilable" >&5
+printf %s "checking if ioctl SIOCGIFADDR is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stropts
+        #include 
+
+int main (void)
+{
+
+        struct ifreq ifr;
+        if(0 != ioctl(0, SIOCGIFADDR, &ifr))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctl_siocgifaddr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctl_siocgifaddr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctl_siocgifaddr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl SIOCGIFADDR usage allowed" >&5
+printf %s "checking if ioctl SIOCGIFADDR usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctl_siocgifaddr" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctl_siocgifaddr="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctl_siocgifaddr="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctl SIOCGIFADDR might be used" >&5
+printf %s "checking if ioctl SIOCGIFADDR might be used... " >&6; }
+  if test "$tst_compi_ioctl_siocgifaddr" = "yes" &&
+     test "$tst_allow_ioctl_siocgifaddr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTL_SIOCGIFADDR 1" >>confdefs.h
+
+    curl_cv_func_ioctl_siocgifaddr="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctl_siocgifaddr="no"
+  fi
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctl="no"
+  fi
+
+
+    #
+  tst_links_ioctlsocket="unknown"
+  tst_proto_ioctlsocket="unknown"
+  tst_compi_ioctlsocket="unknown"
+  tst_allow_ioctlsocket="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket can be linked" >&5
+printf %s "checking if ioctlsocket can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+
+int main (void)
+{
+
+      if(0 != ioctlsocket(0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_ioctlsocket="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_ioctlsocket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_ioctlsocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket is prototyped" >&5
+printf %s "checking if ioctlsocket is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "ioctlsocket" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_ioctlsocket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_ioctlsocket="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_ioctlsocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket is compilable" >&5
+printf %s "checking if ioctlsocket is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+
+int main (void)
+{
+
+        if(0 != ioctlsocket(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctlsocket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctlsocket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctlsocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket usage allowed" >&5
+printf %s "checking if ioctlsocket usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctlsocket" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctlsocket="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctlsocket="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket might be used" >&5
+printf %s "checking if ioctlsocket might be used... " >&6; }
+  if test "$tst_links_ioctlsocket" = "yes" &&
+     test "$tst_proto_ioctlsocket" = "yes" &&
+     test "$tst_compi_ioctlsocket" = "yes" &&
+     test "$tst_allow_ioctlsocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTLSOCKET 1" >>confdefs.h
+
+    curl_cv_func_ioctlsocket="yes"
+
+  #
+  tst_compi_ioctlsocket_fionbio="unknown"
+  tst_allow_ioctlsocket_fionbio="unknown"
+  #
+  if test "$curl_cv_func_ioctlsocket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket FIONBIO is compilable" >&5
+printf %s "checking if ioctlsocket FIONBIO is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+
+int main (void)
+{
+
+        int flags = 0;
+        if(0 != ioctlsocket(0, FIONBIO, &flags))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctlsocket_fionbio="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctlsocket_fionbio="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctlsocket_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket FIONBIO usage allowed" >&5
+printf %s "checking if ioctlsocket FIONBIO usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctlsocket_fionbio" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctlsocket_fionbio="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctlsocket_fionbio="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ioctlsocket FIONBIO might be used" >&5
+printf %s "checking if ioctlsocket FIONBIO might be used... " >&6; }
+  if test "$tst_compi_ioctlsocket_fionbio" = "yes" &&
+     test "$tst_allow_ioctlsocket_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTLSOCKET_FIONBIO 1" >>confdefs.h
+
+    curl_cv_func_ioctlsocket_fionbio="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctlsocket_fionbio="no"
+  fi
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctlsocket="no"
+  fi
+
+
+    #
+  tst_links_ioctlsocket_camel="unknown"
+  tst_proto_ioctlsocket_camel="unknown"
+  tst_compi_ioctlsocket_camel="unknown"
+  tst_allow_ioctlsocket_camel="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket can be linked" >&5
+printf %s "checking if IoctlSocket can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define IoctlSocket innocuous_IoctlSocket
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef IoctlSocket
+#ifdef __cplusplus
+extern "C"
+#endif
+char IoctlSocket ();
+#if defined __stub_IoctlSocket || defined __stub___IoctlSocket
+choke me
+#endif
+
+int main (void)
+{
+return IoctlSocket ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_ioctlsocket_camel="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_ioctlsocket_camel="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_ioctlsocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket is prototyped" >&5
+printf %s "checking if IoctlSocket is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_stropts
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "IoctlSocket" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_ioctlsocket_camel="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_ioctlsocket_camel="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_ioctlsocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket is compilable" >&5
+printf %s "checking if IoctlSocket is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stropts
+
+int main (void)
+{
+
+        if(0 != IoctlSocket(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctlsocket_camel="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctlsocket_camel="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctlsocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket usage allowed" >&5
+printf %s "checking if IoctlSocket usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctlsocket_camel" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctlsocket_camel="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctlsocket_camel="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket might be used" >&5
+printf %s "checking if IoctlSocket might be used... " >&6; }
+  if test "$tst_links_ioctlsocket_camel" = "yes" &&
+     test "$tst_proto_ioctlsocket_camel" = "yes" &&
+     test "$tst_compi_ioctlsocket_camel" = "yes" &&
+     test "$tst_allow_ioctlsocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTLSOCKET_CAMEL 1" >>confdefs.h
+
+    curl_cv_func_ioctlsocket_camel="yes"
+
+  #
+  tst_compi_ioctlsocket_camel_fionbio="unknown"
+  tst_allow_ioctlsocket_camel_fionbio="unknown"
+  #
+  if test "$curl_cv_func_ioctlsocket_camel" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket FIONBIO is compilable" >&5
+printf %s "checking if IoctlSocket FIONBIO is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stropts
+
+int main (void)
+{
+
+        long flags = 0;
+        if(0 != IoctlSocket(0, FIONBIO, &flags))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_ioctlsocket_camel_fionbio="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_ioctlsocket_camel_fionbio="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_ioctlsocket_camel_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket FIONBIO usage allowed" >&5
+printf %s "checking if IoctlSocket FIONBIO usage allowed... " >&6; }
+    if test "x$curl_disallow_ioctlsocket_camel_fionbio" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_ioctlsocket_camel_fionbio="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_ioctlsocket_camel_fionbio="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if IoctlSocket FIONBIO might be used" >&5
+printf %s "checking if IoctlSocket FIONBIO might be used... " >&6; }
+  if test "$tst_compi_ioctlsocket_camel_fionbio" = "yes" &&
+     test "$tst_allow_ioctlsocket_camel_fionbio" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_IOCTLSOCKET_CAMEL_FIONBIO 1" >>confdefs.h
+
+    curl_cv_func_ioctlsocket_camel_fionbio="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctlsocket_camel_fionbio="no"
+  fi
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_ioctlsocket_camel="no"
+  fi
+
+
+      #
+  tst_links_localtime_r="unknown"
+  tst_proto_localtime_r="unknown"
+  tst_compi_localtime_r="unknown"
+  tst_works_localtime_r="unknown"
+  tst_allow_localtime_r="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r can be linked" >&5
+printf %s "checking if localtime_r can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define localtime_r innocuous_localtime_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef localtime_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char localtime_r ();
+#if defined __stub_localtime_r || defined __stub___localtime_r
+choke me
+#endif
+
+int main (void)
+{
+return localtime_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_localtime_r="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_localtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_localtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r is prototyped" >&5
+printf %s "checking if localtime_r is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_time
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "localtime_r" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_localtime_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_localtime_r="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_localtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r is compilable" >&5
+printf %s "checking if localtime_r is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_time
+
+int main (void)
+{
+
+        if(0 != localtime_r(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_localtime_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_localtime_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_localtime_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r seems to work" >&5
+printf %s "checking if localtime_r seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_time
+
+int main (void)
+{
+
+        time_t clock = 1170352587;
+        struct tm *tmp = 0;
+        struct tm result;
+        tmp = localtime_r(&clock, &result);
+        if(tmp)
+          exit(0);
+        else
+          exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_localtime_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_localtime_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_time
+
+int main (void)
+{
+
+        time_t clock = 1170352587;
+        struct tm *tmp = 0;
+        struct tm result;
+        tmp = localtime_r(&clock, &result);
+        if(tmp)
+          exit(0);
+        else
+          exit(1);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_localtime_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_localtime_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_localtime_r" = "yes" &&
+    test "$tst_works_localtime_r" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r usage allowed" >&5
+printf %s "checking if localtime_r usage allowed... " >&6; }
+    if test "x$curl_disallow_localtime_r" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_localtime_r="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_localtime_r="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if localtime_r might be used" >&5
+printf %s "checking if localtime_r might be used... " >&6; }
+  if test "$tst_links_localtime_r" = "yes" &&
+     test "$tst_proto_localtime_r" = "yes" &&
+     test "$tst_compi_localtime_r" = "yes" &&
+     test "$tst_allow_localtime_r" = "yes" &&
+     test "$tst_works_localtime_r" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_LOCALTIME_R 1" >>confdefs.h
+
+    curl_cv_func_localtime_r="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_localtime_r="no"
+  fi
+
+
+    #
+  tst_links_memrchr="unknown"
+  tst_macro_memrchr="unknown"
+  tst_proto_memrchr="unknown"
+  tst_compi_memrchr="unknown"
+  tst_allow_memrchr="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr can be linked" >&5
+printf %s "checking if memrchr can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define memrchr innocuous_memrchr
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef memrchr
+#ifdef __cplusplus
+extern "C"
+#endif
+char memrchr ();
+#if defined __stub_memrchr || defined __stub___memrchr
+choke me
+#endif
+
+int main (void)
+{
+return memrchr ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_memrchr="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_memrchr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_memrchr" = "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr seems a macro" >&5
+printf %s "checking if memrchr seems a macro... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != memrchr(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_macro_memrchr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_macro_memrchr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+  #
+  if test "$tst_links_memrchr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr is prototyped" >&5
+printf %s "checking if memrchr is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memrchr" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_memrchr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_memrchr="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_memrchr" = "yes" ||
+     test "$tst_macro_memrchr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr is compilable" >&5
+printf %s "checking if memrchr is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != memrchr(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_memrchr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_memrchr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_memrchr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr usage allowed" >&5
+printf %s "checking if memrchr usage allowed... " >&6; }
+    if test "x$curl_disallow_memrchr" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_memrchr="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_memrchr="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if memrchr might be used" >&5
+printf %s "checking if memrchr might be used... " >&6; }
+  if (test "$tst_proto_memrchr" = "yes" ||
+      test "$tst_macro_memrchr" = "yes") &&
+     test "$tst_compi_memrchr" = "yes" &&
+     test "$tst_allow_memrchr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_MEMRCHR 1" >>confdefs.h
+
+    curl_cv_func_memrchr="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_memrchr="no"
+  fi
+
+
+      #
+  tst_links_poll="unknown"
+  tst_proto_poll="unknown"
+  tst_compi_poll="unknown"
+  tst_works_poll="unknown"
+  tst_allow_poll="unknown"
+  #
+  case $host_os in
+    darwin*|interix*)
+                                          curl_disallow_poll="yes"
+      tst_compi_poll="no"
+      ;;
+  esac
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll can be linked" >&5
+printf %s "checking if poll can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_poll
+
+int main (void)
+{
+
+      if(0 != poll(0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_poll="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_poll="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_poll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll is prototyped" >&5
+printf %s "checking if poll is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_poll
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "poll" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_poll="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_poll="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_poll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll is compilable" >&5
+printf %s "checking if poll is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_poll
+
+int main (void)
+{
+
+        if(0 != poll(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_poll="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_poll="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_compi_poll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll seems to work" >&5
+printf %s "checking if poll seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_poll
+        $curl_includes_time
+
+int main (void)
+{
+
+        /* detect the original poll() breakage */
+        if(0 != poll(0, 0, 10))
+          exit(1); /* fail */
+        else {
+          /* detect the 10.12 poll() breakage */
+          struct timeval before, after;
+          int rc;
+          size_t us;
+
+          gettimeofday(&before, NULL);
+          rc = poll(NULL, 0, 500);
+          gettimeofday(&after, NULL);
+
+          us = (after.tv_sec - before.tv_sec) * 1000000 +
+            (after.tv_usec - before.tv_usec);
+
+          if(us < 400000)
+            exit(1);
+        }
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_poll="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_poll="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_poll
+        $curl_includes_time
+
+int main (void)
+{
+
+        /* detect the original poll() breakage */
+        if(0 != poll(0, 0, 10))
+          exit(1); /* fail */
+        else {
+          /* detect the 10.12 poll() breakage */
+          struct timeval before, after;
+          int rc;
+          size_t us;
+
+          gettimeofday(&before, NULL);
+          rc = poll(NULL, 0, 500);
+          gettimeofday(&after, NULL);
+
+          us = (after.tv_sec - before.tv_sec) * 1000000 +
+            (after.tv_usec - before.tv_usec);
+
+          if(us < 400000)
+            exit(1);
+        }
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_poll="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_poll="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_poll" = "yes" &&
+    test "$tst_works_poll" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll usage allowed" >&5
+printf %s "checking if poll usage allowed... " >&6; }
+    if test "x$curl_disallow_poll" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_poll="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_poll="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if poll might be used" >&5
+printf %s "checking if poll might be used... " >&6; }
+  if test "$tst_links_poll" = "yes" &&
+     test "$tst_proto_poll" = "yes" &&
+     test "$tst_compi_poll" = "yes" &&
+     test "$tst_allow_poll" = "yes" &&
+     test "$tst_works_poll" != "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_POLL 1" >>confdefs.h
+
+
+printf "%s\n" "#define HAVE_POLL_FINE 1" >>confdefs.h
+
+    curl_cv_func_poll="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_poll="no"
+  fi
+
+
+      #
+  tst_links_setsockopt="unknown"
+  tst_proto_setsockopt="unknown"
+  tst_compi_setsockopt="unknown"
+  tst_allow_setsockopt="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt can be linked" >&5
+printf %s "checking if setsockopt can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+int main (void)
+{
+
+      if(0 != setsockopt(0, 0, 0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_setsockopt="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_setsockopt="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_setsockopt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt is prototyped" >&5
+printf %s "checking if setsockopt is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "setsockopt" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_setsockopt="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_setsockopt="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_setsockopt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt is compilable" >&5
+printf %s "checking if setsockopt is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+
+int main (void)
+{
+
+        if(0 != setsockopt(0, 0, 0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_setsockopt="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_setsockopt="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_setsockopt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt usage allowed" >&5
+printf %s "checking if setsockopt usage allowed... " >&6; }
+    if test "x$curl_disallow_setsockopt" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_setsockopt="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_setsockopt="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt might be used" >&5
+printf %s "checking if setsockopt might be used... " >&6; }
+  if test "$tst_links_setsockopt" = "yes" &&
+     test "$tst_proto_setsockopt" = "yes" &&
+     test "$tst_compi_setsockopt" = "yes" &&
+     test "$tst_allow_setsockopt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SETSOCKOPT 1" >>confdefs.h
+
+    curl_cv_func_setsockopt="yes"
+
+  #
+  tst_compi_setsockopt_so_nonblock="unknown"
+  tst_allow_setsockopt_so_nonblock="unknown"
+  #
+  if test "$curl_cv_func_setsockopt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt SO_NONBLOCK is compilable" >&5
+printf %s "checking if setsockopt SO_NONBLOCK is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+
+int main (void)
+{
+
+        if(0 != setsockopt(0, SOL_SOCKET, SO_NONBLOCK, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_setsockopt_so_nonblock="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_setsockopt_so_nonblock="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_setsockopt_so_nonblock" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt SO_NONBLOCK usage allowed" >&5
+printf %s "checking if setsockopt SO_NONBLOCK usage allowed... " >&6; }
+    if test "x$curl_disallow_setsockopt_so_nonblock" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_setsockopt_so_nonblock="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_setsockopt_so_nonblock="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if setsockopt SO_NONBLOCK might be used" >&5
+printf %s "checking if setsockopt SO_NONBLOCK might be used... " >&6; }
+  if test "$tst_compi_setsockopt_so_nonblock" = "yes" &&
+     test "$tst_allow_setsockopt_so_nonblock" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SETSOCKOPT_SO_NONBLOCK 1" >>confdefs.h
+
+    curl_cv_func_setsockopt_so_nonblock="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_setsockopt_so_nonblock="no"
+  fi
+
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_setsockopt="no"
+  fi
+
+
+curl_includes_signal="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SIGNAL_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_signal
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "signal.h" "ac_cv_header_signal_h" "$curl_includes_signal
+"
+if test "x$ac_cv_header_signal_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SIGNAL_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_sigaction="unknown"
+  tst_proto_sigaction="unknown"
+  tst_compi_sigaction="unknown"
+  tst_allow_sigaction="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigaction can be linked" >&5
+printf %s "checking if sigaction can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define sigaction innocuous_sigaction
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef sigaction
+#ifdef __cplusplus
+extern "C"
+#endif
+char sigaction ();
+#if defined __stub_sigaction || defined __stub___sigaction
+choke me
+#endif
+
+int main (void)
+{
+return sigaction ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_sigaction="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_sigaction="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_sigaction" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigaction is prototyped" >&5
+printf %s "checking if sigaction is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_signal
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "sigaction" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_sigaction="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_sigaction="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_sigaction" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigaction is compilable" >&5
+printf %s "checking if sigaction is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_signal
+
+int main (void)
+{
+
+        if(0 != sigaction(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_sigaction="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_sigaction="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_sigaction" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigaction usage allowed" >&5
+printf %s "checking if sigaction usage allowed... " >&6; }
+    if test "x$curl_disallow_sigaction" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_sigaction="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_sigaction="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigaction might be used" >&5
+printf %s "checking if sigaction might be used... " >&6; }
+  if test "$tst_links_sigaction" = "yes" &&
+     test "$tst_proto_sigaction" = "yes" &&
+     test "$tst_compi_sigaction" = "yes" &&
+     test "$tst_allow_sigaction" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SIGACTION 1" >>confdefs.h
+
+    curl_cv_func_sigaction="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_sigaction="no"
+  fi
+
+
+    #
+  tst_links_siginterrupt="unknown"
+  tst_proto_siginterrupt="unknown"
+  tst_compi_siginterrupt="unknown"
+  tst_allow_siginterrupt="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if siginterrupt can be linked" >&5
+printf %s "checking if siginterrupt can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define siginterrupt innocuous_siginterrupt
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef siginterrupt
+#ifdef __cplusplus
+extern "C"
+#endif
+char siginterrupt ();
+#if defined __stub_siginterrupt || defined __stub___siginterrupt
+choke me
+#endif
+
+int main (void)
+{
+return siginterrupt ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_siginterrupt="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_siginterrupt="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_siginterrupt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if siginterrupt is prototyped" >&5
+printf %s "checking if siginterrupt is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_signal
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "siginterrupt" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_siginterrupt="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_siginterrupt="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_siginterrupt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if siginterrupt is compilable" >&5
+printf %s "checking if siginterrupt is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_signal
+
+int main (void)
+{
+
+        if(0 != siginterrupt(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_siginterrupt="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_siginterrupt="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_siginterrupt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if siginterrupt usage allowed" >&5
+printf %s "checking if siginterrupt usage allowed... " >&6; }
+    if test "x$curl_disallow_siginterrupt" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_siginterrupt="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_siginterrupt="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if siginterrupt might be used" >&5
+printf %s "checking if siginterrupt might be used... " >&6; }
+  if test "$tst_links_siginterrupt" = "yes" &&
+     test "$tst_proto_siginterrupt" = "yes" &&
+     test "$tst_compi_siginterrupt" = "yes" &&
+     test "$tst_allow_siginterrupt" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SIGINTERRUPT 1" >>confdefs.h
+
+    curl_cv_func_siginterrupt="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_siginterrupt="no"
+  fi
+
+
+    #
+  tst_links_signal="unknown"
+  tst_proto_signal="unknown"
+  tst_compi_signal="unknown"
+  tst_allow_signal="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if signal can be linked" >&5
+printf %s "checking if signal can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define signal innocuous_signal
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef signal
+#ifdef __cplusplus
+extern "C"
+#endif
+char signal ();
+#if defined __stub_signal || defined __stub___signal
+choke me
+#endif
+
+int main (void)
+{
+return signal ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_signal="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_signal="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_signal" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if signal is prototyped" >&5
+printf %s "checking if signal is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_signal
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "signal" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_signal="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_signal="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_signal" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if signal is compilable" >&5
+printf %s "checking if signal is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_signal
+
+int main (void)
+{
+
+        if(0 != signal(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_signal="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_signal="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_signal" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if signal usage allowed" >&5
+printf %s "checking if signal usage allowed... " >&6; }
+    if test "x$curl_disallow_signal" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_signal="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_signal="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if signal might be used" >&5
+printf %s "checking if signal might be used... " >&6; }
+  if test "$tst_links_signal" = "yes" &&
+     test "$tst_proto_signal" = "yes" &&
+     test "$tst_compi_signal" = "yes" &&
+     test "$tst_allow_signal" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SIGNAL 1" >>confdefs.h
+
+    curl_cv_func_signal="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_signal="no"
+  fi
+
+
+curl_includes_setjmp="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SETJMP_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_setjmp
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "setjmp.h" "ac_cv_header_setjmp_h" "$curl_includes_setjmp
+"
+if test "x$ac_cv_header_setjmp_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SETJMP_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_sigsetjmp="unknown"
+  tst_macro_sigsetjmp="unknown"
+  tst_proto_sigsetjmp="unknown"
+  tst_compi_sigsetjmp="unknown"
+  tst_allow_sigsetjmp="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp can be linked" >&5
+printf %s "checking if sigsetjmp can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define sigsetjmp innocuous_sigsetjmp
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef sigsetjmp
+#ifdef __cplusplus
+extern "C"
+#endif
+char sigsetjmp ();
+#if defined __stub_sigsetjmp || defined __stub___sigsetjmp
+choke me
+#endif
+
+int main (void)
+{
+return sigsetjmp ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_sigsetjmp="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_sigsetjmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_sigsetjmp" = "no"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp seems a macro" >&5
+printf %s "checking if sigsetjmp seems a macro... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_setjmp
+
+int main (void)
+{
+
+        sigjmp_buf env;
+        if(0 != sigsetjmp(env, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_macro_sigsetjmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_macro_sigsetjmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+  #
+  if test "$tst_links_sigsetjmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp is prototyped" >&5
+printf %s "checking if sigsetjmp is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_setjmp
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "sigsetjmp" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_sigsetjmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_sigsetjmp="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_sigsetjmp" = "yes" ||
+     test "$tst_macro_sigsetjmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp is compilable" >&5
+printf %s "checking if sigsetjmp is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_setjmp
+
+int main (void)
+{
+
+        sigjmp_buf env;
+        if(0 != sigsetjmp(env, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_sigsetjmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_sigsetjmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_sigsetjmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp usage allowed" >&5
+printf %s "checking if sigsetjmp usage allowed... " >&6; }
+    if test "x$curl_disallow_sigsetjmp" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_sigsetjmp="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_sigsetjmp="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if sigsetjmp might be used" >&5
+printf %s "checking if sigsetjmp might be used... " >&6; }
+  if (test "$tst_proto_sigsetjmp" = "yes" ||
+      test "$tst_macro_sigsetjmp" = "yes") &&
+     test "$tst_compi_sigsetjmp" = "yes" &&
+     test "$tst_allow_sigsetjmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SIGSETJMP 1" >>confdefs.h
+
+    curl_cv_func_sigsetjmp="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_sigsetjmp="no"
+  fi
+
+
+        #
+  tst_links_socket="unknown"
+  tst_proto_socket="unknown"
+  tst_compi_socket="unknown"
+  tst_allow_socket="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socket can be linked" >&5
+printf %s "checking if socket can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+      $curl_includes_socket
+
+int main (void)
+{
+
+      if(0 != socket(0, 0, 0))
+        return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_socket="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_socket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_socket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socket is prototyped" >&5
+printf %s "checking if socket is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_winsock2
+      $curl_includes_bsdsocket
+      $curl_includes_sys_socket
+      $curl_includes_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "socket" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_socket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_socket="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_socket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socket is compilable" >&5
+printf %s "checking if socket is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_winsock2
+      $curl_includes_bsdsocket
+        $curl_includes_sys_socket
+        $curl_includes_socket
+
+int main (void)
+{
+
+        if(0 != socket(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_socket="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_socket="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_socket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socket usage allowed" >&5
+printf %s "checking if socket usage allowed... " >&6; }
+    if test "x$curl_disallow_socket" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_socket="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_socket="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socket might be used" >&5
+printf %s "checking if socket might be used... " >&6; }
+  if test "$tst_links_socket" = "yes" &&
+     test "$tst_proto_socket" = "yes" &&
+     test "$tst_compi_socket" = "yes" &&
+     test "$tst_allow_socket" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SOCKET 1" >>confdefs.h
+
+    curl_cv_func_socket="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_socket="no"
+  fi
+
+
+      #
+  tst_links_socketpair="unknown"
+  tst_proto_socketpair="unknown"
+  tst_compi_socketpair="unknown"
+  tst_allow_socketpair="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socketpair can be linked" >&5
+printf %s "checking if socketpair can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define socketpair innocuous_socketpair
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef socketpair
+#ifdef __cplusplus
+extern "C"
+#endif
+char socketpair ();
+#if defined __stub_socketpair || defined __stub___socketpair
+choke me
+#endif
+
+int main (void)
+{
+return socketpair ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_socketpair="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_socketpair="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_socketpair" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socketpair is prototyped" >&5
+printf %s "checking if socketpair is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_sys_socket
+      $curl_includes_socket
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "socketpair" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_socketpair="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_socketpair="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_socketpair" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socketpair is compilable" >&5
+printf %s "checking if socketpair is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_sys_socket
+        $curl_includes_socket
+
+int main (void)
+{
+
+        int sv[2];
+        if(0 != socketpair(0, 0, 0, sv))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_socketpair="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_socketpair="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_socketpair" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socketpair usage allowed" >&5
+printf %s "checking if socketpair usage allowed... " >&6; }
+    if test "x$curl_disallow_socketpair" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_socketpair="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_socketpair="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if socketpair might be used" >&5
+printf %s "checking if socketpair might be used... " >&6; }
+  if test "$tst_links_socketpair" = "yes" &&
+     test "$tst_proto_socketpair" = "yes" &&
+     test "$tst_compi_socketpair" = "yes" &&
+     test "$tst_allow_socketpair" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_SOCKETPAIR 1" >>confdefs.h
+
+    curl_cv_func_socketpair="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_socketpair="no"
+  fi
+
+
+    #
+  tst_links_strcasecmp="unknown"
+  tst_proto_strcasecmp="unknown"
+  tst_compi_strcasecmp="unknown"
+  tst_allow_strcasecmp="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcasecmp can be linked" >&5
+printf %s "checking if strcasecmp can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strcasecmp innocuous_strcasecmp
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strcasecmp
+#ifdef __cplusplus
+extern "C"
+#endif
+char strcasecmp ();
+#if defined __stub_strcasecmp || defined __stub___strcasecmp
+choke me
+#endif
+
+int main (void)
+{
+return strcasecmp ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strcasecmp="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strcasecmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strcasecmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcasecmp is prototyped" >&5
+printf %s "checking if strcasecmp is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strcasecmp" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strcasecmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strcasecmp="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strcasecmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcasecmp is compilable" >&5
+printf %s "checking if strcasecmp is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strcasecmp(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strcasecmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strcasecmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strcasecmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcasecmp usage allowed" >&5
+printf %s "checking if strcasecmp usage allowed... " >&6; }
+    if test "x$curl_disallow_strcasecmp" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strcasecmp="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strcasecmp="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcasecmp might be used" >&5
+printf %s "checking if strcasecmp might be used... " >&6; }
+  if test "$tst_links_strcasecmp" = "yes" &&
+     test "$tst_proto_strcasecmp" = "yes" &&
+     test "$tst_compi_strcasecmp" = "yes" &&
+     test "$tst_allow_strcasecmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRCASECMP 1" >>confdefs.h
+
+    curl_cv_func_strcasecmp="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strcasecmp="no"
+  fi
+
+
+    #
+  tst_links_strcmpi="unknown"
+  tst_proto_strcmpi="unknown"
+  tst_compi_strcmpi="unknown"
+  tst_allow_strcmpi="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcmpi can be linked" >&5
+printf %s "checking if strcmpi can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strcmpi innocuous_strcmpi
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strcmpi
+#ifdef __cplusplus
+extern "C"
+#endif
+char strcmpi ();
+#if defined __stub_strcmpi || defined __stub___strcmpi
+choke me
+#endif
+
+int main (void)
+{
+return strcmpi ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strcmpi="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strcmpi="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strcmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcmpi is prototyped" >&5
+printf %s "checking if strcmpi is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strcmpi" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strcmpi="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strcmpi="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strcmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcmpi is compilable" >&5
+printf %s "checking if strcmpi is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strcmpi(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strcmpi="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strcmpi="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strcmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcmpi usage allowed" >&5
+printf %s "checking if strcmpi usage allowed... " >&6; }
+    if test "x$curl_disallow_strcmpi" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strcmpi="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strcmpi="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strcmpi might be used" >&5
+printf %s "checking if strcmpi might be used... " >&6; }
+  if test "$tst_links_strcmpi" = "yes" &&
+     test "$tst_proto_strcmpi" = "yes" &&
+     test "$tst_compi_strcmpi" = "yes" &&
+     test "$tst_allow_strcmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRCMPI 1" >>confdefs.h
+
+    curl_cv_func_strcmpi="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strcmpi="no"
+  fi
+
+
+    #
+  tst_links_strdup="unknown"
+  tst_proto_strdup="unknown"
+  tst_compi_strdup="unknown"
+  tst_allow_strdup="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strdup can be linked" >&5
+printf %s "checking if strdup can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strdup innocuous_strdup
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strdup
+#ifdef __cplusplus
+extern "C"
+#endif
+char strdup ();
+#if defined __stub_strdup || defined __stub___strdup
+choke me
+#endif
+
+int main (void)
+{
+return strdup ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strdup="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strdup="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strdup" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strdup is prototyped" >&5
+printf %s "checking if strdup is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strdup" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strdup="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strdup="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strdup" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strdup is compilable" >&5
+printf %s "checking if strdup is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strdup(0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strdup="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strdup="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strdup" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strdup usage allowed" >&5
+printf %s "checking if strdup usage allowed... " >&6; }
+    if test "x$curl_disallow_strdup" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strdup="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strdup="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strdup might be used" >&5
+printf %s "checking if strdup might be used... " >&6; }
+  if test "$tst_links_strdup" = "yes" &&
+     test "$tst_proto_strdup" = "yes" &&
+     test "$tst_compi_strdup" = "yes" &&
+     test "$tst_allow_strdup" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRDUP 1" >>confdefs.h
+
+    curl_cv_func_strdup="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strdup="no"
+  fi
+
+
+      #
+  tst_links_strerror_r="unknown"
+  tst_proto_strerror_r="unknown"
+  tst_compi_strerror_r="unknown"
+  tst_glibc_strerror_r="unknown"
+  tst_posix_strerror_r="unknown"
+  tst_allow_strerror_r="unknown"
+  tst_works_glibc_strerror_r="unknown"
+  tst_works_posix_strerror_r="unknown"
+  tst_glibc_strerror_r_type_arg3="unknown"
+  tst_posix_strerror_r_type_arg3="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r can be linked" >&5
+printf %s "checking if strerror_r can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strerror_r innocuous_strerror_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strerror_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char strerror_r ();
+#if defined __stub_strerror_r || defined __stub___strerror_r
+choke me
+#endif
+
+int main (void)
+{
+return strerror_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strerror_r="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strerror_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r is prototyped" >&5
+printf %s "checking if strerror_r is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strerror_r" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strerror_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strerror_r="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r is compilable" >&5
+printf %s "checking if strerror_r is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strerror_r(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strerror_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strerror_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r is glibc like" >&5
+printf %s "checking if strerror_r is glibc like... " >&6; }
+    tst_glibc_strerror_r_type_arg3="unknown"
+    for arg3 in 'size_t' 'int' 'unsigned int'; do
+      if test "$tst_glibc_strerror_r_type_arg3" = "unknown"; then
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+            $curl_includes_string
+            char *strerror_r(int errnum, char *workbuf, $arg3 bufsize);
+
+int main (void)
+{
+
+            if(0 != strerror_r(0, 0, 0))
+              return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+          tst_glibc_strerror_r_type_arg3="$arg3"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+      fi
+    done
+    case "$tst_glibc_strerror_r_type_arg3" in
+      unknown)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_glibc_strerror_r="no"
+        ;;
+      *)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_glibc_strerror_r="yes"
+        ;;
+    esac
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_glibc_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r seems to work" >&5
+printf %s "checking if strerror_r seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_string
+#       include 
+
+int main (void)
+{
+
+        char buffer[1024];
+        char *string = 0;
+        buffer[0] = '\0';
+        string = strerror_r(EACCES, buffer, sizeof(buffer));
+        if(!string)
+          exit(1); /* fail */
+        if(!string[0])
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_glibc_strerror_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_glibc_strerror_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_string
+#       include 
+
+int main (void)
+{
+
+        char buffer[1024];
+        char *string = 0;
+        buffer[0] = '\0';
+        string = strerror_r(EACCES, buffer, sizeof(buffer));
+        if(!string)
+          exit(1); /* fail */
+        if(!string[0])
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_glibc_strerror_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_glibc_strerror_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_compi_strerror_r" = "yes" &&
+    test "$tst_works_glibc_strerror_r" != "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r is POSIX like" >&5
+printf %s "checking if strerror_r is POSIX like... " >&6; }
+    tst_posix_strerror_r_type_arg3="unknown"
+    for arg3 in 'size_t' 'int' 'unsigned int'; do
+      if test "$tst_posix_strerror_r_type_arg3" = "unknown"; then
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+            $curl_includes_string
+            int strerror_r(int errnum, char *resultbuf, $arg3 bufsize);
+
+int main (void)
+{
+
+            if(0 != strerror_r(0, 0, 0))
+              return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+          tst_posix_strerror_r_type_arg3="$arg3"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+      fi
+    done
+    case "$tst_posix_strerror_r_type_arg3" in
+      unknown)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+        tst_posix_strerror_r="no"
+        ;;
+      *)
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+        tst_posix_strerror_r="yes"
+        ;;
+    esac
+  fi
+  #
+    if test "x$cross_compiling" != "xyes" &&
+    test "$tst_posix_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r seems to work" >&5
+printf %s "checking if strerror_r seems to work... " >&6; }
+
+   case $host_os in
+     darwin*)
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_string
+#       include 
+
+int main (void)
+{
+
+        char buffer[1024];
+        int error = 1;
+        buffer[0] = '\0';
+        error = strerror_r(EACCES, buffer, sizeof(buffer));
+        if(error)
+          exit(1); /* fail */
+        if(buffer[0] == '\0')
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_posix_strerror_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_posix_strerror_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+     ;;
+     *)
+      old=$LD_LIBRARY_PATH
+      LD_LIBRARY_PATH=$CURL_LIBRARY_PATH:$old
+      export LD_LIBRARY_PATH
+      if test "$cross_compiling" = yes
+then :
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else $as_nop
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+        $curl_includes_string
+#       include 
+
+int main (void)
+{
+
+        char buffer[1024];
+        int error = 1;
+        buffer[0] = '\0';
+        error = strerror_r(EACCES, buffer, sizeof(buffer));
+        if(error)
+          exit(1); /* fail */
+        if(buffer[0] == '\0')
+          exit(1); /* fail */
+        else
+          exit(0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_works_posix_strerror_r="yes"
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_works_posix_strerror_r="no"
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+      LD_LIBRARY_PATH=$old # restore
+     ;;
+   esac
+
+  fi
+  #
+  if test "$tst_works_glibc_strerror_r" = "yes"; then
+    tst_posix_strerror_r="no"
+  fi
+  if test "$tst_works_posix_strerror_r" = "yes"; then
+    tst_glibc_strerror_r="no"
+  fi
+  if test "$tst_glibc_strerror_r" = "yes" &&
+    test "$tst_works_glibc_strerror_r" != "no" &&
+    test "$tst_posix_strerror_r" != "yes"; then
+    tst_allow_strerror_r="check"
+  fi
+  if test "$tst_posix_strerror_r" = "yes" &&
+    test "$tst_works_posix_strerror_r" != "no" &&
+    test "$tst_glibc_strerror_r" != "yes"; then
+    tst_allow_strerror_r="check"
+  fi
+  if test "$tst_allow_strerror_r" = "check"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r usage allowed" >&5
+printf %s "checking if strerror_r usage allowed... " >&6; }
+    if test "x$curl_disallow_strerror_r" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strerror_r="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strerror_r="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strerror_r might be used" >&5
+printf %s "checking if strerror_r might be used... " >&6; }
+  if test "$tst_links_strerror_r" = "yes" &&
+     test "$tst_proto_strerror_r" = "yes" &&
+     test "$tst_compi_strerror_r" = "yes" &&
+     test "$tst_allow_strerror_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    if test "$tst_glibc_strerror_r" = "yes"; then
+
+printf "%s\n" "#define HAVE_STRERROR_R 1" >>confdefs.h
+
+
+printf "%s\n" "#define HAVE_GLIBC_STRERROR_R 1" >>confdefs.h
+
+
+printf "%s\n" "#define STRERROR_R_TYPE_ARG3 $tst_glibc_strerror_r_type_arg3" >>confdefs.h
+
+    fi
+    if test "$tst_posix_strerror_r" = "yes"; then
+
+printf "%s\n" "#define HAVE_STRERROR_R 1" >>confdefs.h
+
+
+printf "%s\n" "#define HAVE_POSIX_STRERROR_R 1" >>confdefs.h
+
+
+printf "%s\n" "#define STRERROR_R_TYPE_ARG3 $tst_posix_strerror_r_type_arg3" >>confdefs.h
+
+    fi
+    curl_cv_func_strerror_r="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strerror_r="no"
+  fi
+  #
+  if test "$tst_compi_strerror_r" = "yes" &&
+     test "$tst_allow_strerror_r" = "unknown"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot determine strerror_r() style: edit lib/curl_config.h manually." >&5
+printf "%s\n" "$as_me: WARNING: cannot determine strerror_r() style: edit lib/curl_config.h manually." >&2;}
+  fi
+  #
+
+
+    #
+  tst_links_stricmp="unknown"
+  tst_proto_stricmp="unknown"
+  tst_compi_stricmp="unknown"
+  tst_allow_stricmp="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if stricmp can be linked" >&5
+printf %s "checking if stricmp can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define stricmp innocuous_stricmp
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef stricmp
+#ifdef __cplusplus
+extern "C"
+#endif
+char stricmp ();
+#if defined __stub_stricmp || defined __stub___stricmp
+choke me
+#endif
+
+int main (void)
+{
+return stricmp ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_stricmp="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_stricmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_stricmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if stricmp is prototyped" >&5
+printf %s "checking if stricmp is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "stricmp" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_stricmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_stricmp="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_stricmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if stricmp is compilable" >&5
+printf %s "checking if stricmp is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != stricmp(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_stricmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_stricmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_stricmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if stricmp usage allowed" >&5
+printf %s "checking if stricmp usage allowed... " >&6; }
+    if test "x$curl_disallow_stricmp" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_stricmp="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_stricmp="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if stricmp might be used" >&5
+printf %s "checking if stricmp might be used... " >&6; }
+  if test "$tst_links_stricmp" = "yes" &&
+     test "$tst_proto_stricmp" = "yes" &&
+     test "$tst_compi_stricmp" = "yes" &&
+     test "$tst_allow_stricmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRICMP 1" >>confdefs.h
+
+    curl_cv_func_stricmp="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_stricmp="no"
+  fi
+
+
+    #
+  tst_links_strncmpi="unknown"
+  tst_proto_strncmpi="unknown"
+  tst_compi_strncmpi="unknown"
+  tst_allow_strncmpi="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strncmpi can be linked" >&5
+printf %s "checking if strncmpi can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strncmpi innocuous_strncmpi
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strncmpi
+#ifdef __cplusplus
+extern "C"
+#endif
+char strncmpi ();
+#if defined __stub_strncmpi || defined __stub___strncmpi
+choke me
+#endif
+
+int main (void)
+{
+return strncmpi ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strncmpi="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strncmpi="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strncmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strncmpi is prototyped" >&5
+printf %s "checking if strncmpi is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strncmpi" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strncmpi="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strncmpi="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strncmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strncmpi is compilable" >&5
+printf %s "checking if strncmpi is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strncmpi(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strncmpi="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strncmpi="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strncmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strncmpi usage allowed" >&5
+printf %s "checking if strncmpi usage allowed... " >&6; }
+    if test "x$curl_disallow_strncmpi" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strncmpi="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strncmpi="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strncmpi might be used" >&5
+printf %s "checking if strncmpi might be used... " >&6; }
+  if test "$tst_links_strncmpi" = "yes" &&
+     test "$tst_proto_strncmpi" = "yes" &&
+     test "$tst_compi_strncmpi" = "yes" &&
+     test "$tst_allow_strncmpi" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRNCMPI 1" >>confdefs.h
+
+    curl_cv_func_strncmpi="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strncmpi="no"
+  fi
+
+
+    #
+  tst_links_strnicmp="unknown"
+  tst_proto_strnicmp="unknown"
+  tst_compi_strnicmp="unknown"
+  tst_allow_strnicmp="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strnicmp can be linked" >&5
+printf %s "checking if strnicmp can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strnicmp innocuous_strnicmp
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strnicmp
+#ifdef __cplusplus
+extern "C"
+#endif
+char strnicmp ();
+#if defined __stub_strnicmp || defined __stub___strnicmp
+choke me
+#endif
+
+int main (void)
+{
+return strnicmp ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strnicmp="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strnicmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strnicmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strnicmp is prototyped" >&5
+printf %s "checking if strnicmp is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strnicmp" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strnicmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strnicmp="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strnicmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strnicmp is compilable" >&5
+printf %s "checking if strnicmp is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strnicmp(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strnicmp="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strnicmp="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strnicmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strnicmp usage allowed" >&5
+printf %s "checking if strnicmp usage allowed... " >&6; }
+    if test "x$curl_disallow_strnicmp" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strnicmp="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strnicmp="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strnicmp might be used" >&5
+printf %s "checking if strnicmp might be used... " >&6; }
+  if test "$tst_links_strnicmp" = "yes" &&
+     test "$tst_proto_strnicmp" = "yes" &&
+     test "$tst_compi_strnicmp" = "yes" &&
+     test "$tst_allow_strnicmp" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRNICMP 1" >>confdefs.h
+
+    curl_cv_func_strnicmp="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strnicmp="no"
+  fi
+
+
+    #
+  tst_links_strstr="unknown"
+  tst_proto_strstr="unknown"
+  tst_compi_strstr="unknown"
+  tst_allow_strstr="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strstr can be linked" >&5
+printf %s "checking if strstr can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strstr innocuous_strstr
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strstr
+#ifdef __cplusplus
+extern "C"
+#endif
+char strstr ();
+#if defined __stub_strstr || defined __stub___strstr
+choke me
+#endif
+
+int main (void)
+{
+return strstr ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strstr="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strstr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strstr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strstr is prototyped" >&5
+printf %s "checking if strstr is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strstr" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strstr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strstr="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strstr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strstr is compilable" >&5
+printf %s "checking if strstr is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strstr(0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strstr="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strstr="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strstr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strstr usage allowed" >&5
+printf %s "checking if strstr usage allowed... " >&6; }
+    if test "x$curl_disallow_strstr" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strstr="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strstr="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strstr might be used" >&5
+printf %s "checking if strstr might be used... " >&6; }
+  if test "$tst_links_strstr" = "yes" &&
+     test "$tst_proto_strstr" = "yes" &&
+     test "$tst_compi_strstr" = "yes" &&
+     test "$tst_allow_strstr" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRSTR 1" >>confdefs.h
+
+    curl_cv_func_strstr="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strstr="no"
+  fi
+
+
+    #
+  tst_links_strtok_r="unknown"
+  tst_proto_strtok_r="unknown"
+  tst_compi_strtok_r="unknown"
+  tst_allow_strtok_r="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtok_r can be linked" >&5
+printf %s "checking if strtok_r can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strtok_r innocuous_strtok_r
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strtok_r
+#ifdef __cplusplus
+extern "C"
+#endif
+char strtok_r ();
+#if defined __stub_strtok_r || defined __stub___strtok_r
+choke me
+#endif
+
+int main (void)
+{
+return strtok_r ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strtok_r="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strtok_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strtok_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtok_r is prototyped" >&5
+printf %s "checking if strtok_r is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_string
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strtok_r" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strtok_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strtok_r="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strtok_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtok_r is compilable" >&5
+printf %s "checking if strtok_r is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_string
+
+int main (void)
+{
+
+        if(0 != strtok_r(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strtok_r="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strtok_r="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strtok_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtok_r usage allowed" >&5
+printf %s "checking if strtok_r usage allowed... " >&6; }
+    if test "x$curl_disallow_strtok_r" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strtok_r="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strtok_r="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtok_r might be used" >&5
+printf %s "checking if strtok_r might be used... " >&6; }
+  if test "$tst_links_strtok_r" = "yes" &&
+     test "$tst_proto_strtok_r" = "yes" &&
+     test "$tst_compi_strtok_r" = "yes" &&
+     test "$tst_allow_strtok_r" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRTOK_R 1" >>confdefs.h
+
+    curl_cv_func_strtok_r="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strtok_r="no"
+  fi
+
+
+    #
+  tst_links_strtoll="unknown"
+  tst_proto_strtoll="unknown"
+  tst_compi_strtoll="unknown"
+  tst_allow_strtoll="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtoll can be linked" >&5
+printf %s "checking if strtoll can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define strtoll innocuous_strtoll
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef strtoll
+#ifdef __cplusplus
+extern "C"
+#endif
+char strtoll ();
+#if defined __stub_strtoll || defined __stub___strtoll
+choke me
+#endif
+
+int main (void)
+{
+return strtoll ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_strtoll="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_strtoll="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_strtoll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtoll is prototyped" >&5
+printf %s "checking if strtoll is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_stdlib
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "strtoll" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_strtoll="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_strtoll="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_strtoll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtoll is compilable" >&5
+printf %s "checking if strtoll is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_stdlib
+
+int main (void)
+{
+
+        if(0 != strtoll(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_strtoll="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_strtoll="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_strtoll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtoll usage allowed" >&5
+printf %s "checking if strtoll usage allowed... " >&6; }
+    if test "x$curl_disallow_strtoll" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_strtoll="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_strtoll="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if strtoll might be used" >&5
+printf %s "checking if strtoll might be used... " >&6; }
+  if test "$tst_links_strtoll" = "yes" &&
+     test "$tst_proto_strtoll" = "yes" &&
+     test "$tst_compi_strtoll" = "yes" &&
+     test "$tst_allow_strtoll" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_STRTOLL 1" >>confdefs.h
+
+    curl_cv_func_strtoll="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_strtoll="no"
+  fi
+
+
+curl_includes_sys_uio="\
+/* includes start */
+#ifdef HAVE_SYS_TYPES_H
+#  include 
+#endif
+#ifdef HAVE_SYS_UIO_H
+#  include 
+#endif
+/* includes end */"
+  ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$curl_includes_sys_uio
+"
+if test "x$ac_cv_header_sys_types_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
+
+fi
+ac_fn_c_check_header_compile "$LINENO" "sys/uio.h" "ac_cv_header_sys_uio_h" "$curl_includes_sys_uio
+"
+if test "x$ac_cv_header_sys_uio_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_SYS_UIO_H 1" >>confdefs.h
+
+fi
+
+
+
+    #
+  tst_links_writev="unknown"
+  tst_proto_writev="unknown"
+  tst_compi_writev="unknown"
+  tst_allow_writev="unknown"
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if writev can be linked" >&5
+printf %s "checking if writev can be linked... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#define writev innocuous_writev
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+#undef writev
+#ifdef __cplusplus
+extern "C"
+#endif
+char writev ();
+#if defined __stub_writev || defined __stub___writev
+choke me
+#endif
+
+int main (void)
+{
+return writev ();
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tst_links_writev="yes"
+
+else $as_nop
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    tst_links_writev="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  #
+  if test "$tst_links_writev" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if writev is prototyped" >&5
+printf %s "checking if writev is prototyped... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      $curl_includes_sys_uio
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "writev" >/dev/null 2>&1
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_proto_writev="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_proto_writev="no"
+
+fi
+rm -rf conftest*
+
+  fi
+  #
+  if test "$tst_proto_writev" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if writev is compilable" >&5
+printf %s "checking if writev is compilable... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+        $curl_includes_sys_uio
+
+int main (void)
+{
+
+        if(0 != writev(0, 0, 0))
+          return 1;
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_compi_writev="yes"
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_compi_writev="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  fi
+  #
+  if test "$tst_compi_writev" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if writev usage allowed" >&5
+printf %s "checking if writev usage allowed... " >&6; }
+    if test "x$curl_disallow_writev" != "xyes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      tst_allow_writev="yes"
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      tst_allow_writev="no"
+    fi
+  fi
+  #
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if writev might be used" >&5
+printf %s "checking if writev might be used... " >&6; }
+  if test "$tst_links_writev" = "yes" &&
+     test "$tst_proto_writev" = "yes" &&
+     test "$tst_compi_writev" = "yes" &&
+     test "$tst_allow_writev" = "yes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define HAVE_WRITEV 1" >>confdefs.h
+
+    curl_cv_func_writev="yes"
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+    curl_cv_func_writev="no"
+  fi
+
+
+case $host in
+  *msdosdjgpp)
+     ac_cv_func_pipe=no
+     skipcheck_pipe=yes
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: skip check for pipe on msdosdjgpp" >&5
+printf "%s\n" "$as_me: skip check for pipe on msdosdjgpp" >&6;}
+    ;;
+esac
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5
+printf %s "checking for $CC options needed to detect all undeclared functions... " >&6; }
+if test ${ac_cv_c_undeclared_builtin_options+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_save_CFLAGS=$CFLAGS
+   ac_cv_c_undeclared_builtin_options='cannot detect'
+   for ac_arg in '' -fno-builtin; do
+     CFLAGS="$ac_save_CFLAGS $ac_arg"
+     # This test program should *not* compile successfully.
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int main (void)
+{
+(void) strchr;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+
+else $as_nop
+  # This test program should compile successfully.
+        # No library function is consistently available on
+        # freestanding implementations, so test against a dummy
+        # declaration.  Include always-available headers on the
+        # off chance that they somehow elicit warnings.
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+#include 
+#include 
+extern void ac_decl (int, char *);
+
+int main (void)
+{
+(void) ac_decl (0, (char *) 0);
+  (void) ac_decl;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  if test x"$ac_arg" = x
+then :
+  ac_cv_c_undeclared_builtin_options='none needed'
+else $as_nop
+  ac_cv_c_undeclared_builtin_options=$ac_arg
+fi
+          break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+    done
+    CFLAGS=$ac_save_CFLAGS
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
+printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
+  case $ac_cv_c_undeclared_builtin_options in #(
+  'cannot detect') :
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot make $CC report undeclared builtins
+See \`config.log' for more details" "$LINENO" 5; } ;; #(
+  'none needed') :
+    ac_c_undeclared_builtin_options='' ;; #(
+  *) :
+    ac_c_undeclared_builtin_options=$ac_cv_c_undeclared_builtin_options ;;
+esac
+
+ac_fn_check_decl "$LINENO" "getpwuid_r" "ac_cv_have_decl_getpwuid_r" "#include 
+          #include 
+" "$ac_c_undeclared_builtin_options" "CFLAGS"
+if test "x$ac_cv_have_decl_getpwuid_r" = xyes
+then :
+  ac_have_decl=1
+else $as_nop
+  ac_have_decl=0
+fi
+printf "%s\n" "#define HAVE_DECL_GETPWUID_R $ac_have_decl" >>confdefs.h
+if test $ac_have_decl = 1
+then :
+
+else $as_nop
+
+printf "%s\n" "#define HAVE_DECL_GETPWUID_R_MISSING 1" >>confdefs.h
+
+fi
+
+
+
+
+  for ac_func in fnmatch geteuid getpass_r getppid getpwuid getpwuid_r getrlimit gettimeofday if_nametoindex mach_absolute_time pipe setlocale setmode setrlimit usleep utime utimes
+do :
+  as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"
+then :
+  cat >>confdefs.h <<_ACEOF
+#define `printf "%s\n" "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+
+else $as_nop
+
+  func="$ac_func"
+  eval skipcheck=\$skipcheck_$func
+  if test "x$skipcheck" != "xyes"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking deeper for $func" >&5
+printf %s "checking deeper for $func... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+
+int main (void)
+{
+
+        $func ();
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+      eval "ac_cv_func_$func=yes"
+
+cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$func" | sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | sed 's/^A-Z0-9_/_/g'` 1
+_ACEOF
+
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: but still no" >&5
+printf "%s\n" "but still no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+
+fi
+
+done
+
+
+            #
+  tst_method="unknown"
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to set a socket into non-blocking mode" >&5
+printf %s "checking how to set a socket into non-blocking mode... " >&6; }
+  if test "x$curl_cv_func_fcntl_o_nonblock" = "xyes"; then
+    tst_method="fcntl O_NONBLOCK"
+  elif test "x$curl_cv_func_ioctl_fionbio" = "xyes"; then
+    tst_method="ioctl FIONBIO"
+  elif test "x$curl_cv_func_ioctlsocket_fionbio" = "xyes"; then
+    tst_method="ioctlsocket FIONBIO"
+  elif test "x$curl_cv_func_ioctlsocket_camel_fionbio" = "xyes"; then
+    tst_method="IoctlSocket FIONBIO"
+  elif test "x$curl_cv_func_setsockopt_so_nonblock" = "xyes"; then
+    tst_method="setsockopt SO_NONBLOCK"
+  fi
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tst_method" >&5
+printf "%s\n" "$tst_method" >&6; }
+  if test "$tst_method" = "unknown"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot determine non-blocking socket method." >&5
+printf "%s\n" "$as_me: WARNING: cannot determine non-blocking socket method." >&2;}
+  fi
+
+
+
+# Extract the first word of "perl", so it can be a program name with args.
+set dummy perl; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PERL+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PERL in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/bin/perl:/usr/bin/:/usr/local/bin "
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PERL="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PERL=$ac_cv_path_PERL
+if test -n "$PERL"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
+printf "%s\n" "$PERL" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+
+
+for ac_prog in gnroff nroff
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_NROFF+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $NROFF in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_NROFF="$NROFF" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin/:/usr/local/bin "
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_NROFF="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+NROFF=$ac_cv_path_NROFF
+if test -n "$NROFF"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $NROFF" >&5
+printf "%s\n" "$NROFF" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+  test -n "$NROFF" && break
+done
+
+
+
+if test -n "$NROFF"; then
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to use *nroff to get plain text from man pages" >&5
+printf %s "checking how to use *nroff to get plain text from man pages... " >&6; }
+  MANOPT="-man"
+  mancheck=`echo foo | $NROFF $MANOPT 2>/dev/null`
+  if test -z "$mancheck"; then
+    MANOPT="-mandoc"
+   mancheck=`echo foo | $NROFF $MANOPT 2>/dev/null`
+    if test -z "$mancheck"; then
+      MANOPT=""
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+printf "%s\n" "failed" >&6; }
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: found no *nroff option to get plaintext from man pages" >&5
+printf "%s\n" "$as_me: WARNING: found no *nroff option to get plaintext from man pages" >&2;}
+    else
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MANOPT" >&5
+printf "%s\n" "$MANOPT" >&6; }
+    fi
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MANOPT" >&5
+printf "%s\n" "$MANOPT" >&6; }
+  fi
+
+fi
+
+if test -z "$MANOPT"
+then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: disabling built-in manual" >&5
+printf "%s\n" "$as_me: WARNING: disabling built-in manual" >&2;}
+  USE_MANUAL="no";
+fi
+
+
+if test "$USE_MANUAL" = "1"; then
+
+printf "%s\n" "#define USE_MANUAL 1" >>confdefs.h
+
+  curl_manual_msg="enabled"
+fi
+
+ if test x"$USE_MANUAL" = x1; then
+  USE_MANUAL_TRUE=
+  USE_MANUAL_FALSE='#'
+else
+  USE_MANUAL_TRUE='#'
+  USE_MANUAL_FALSE=
+fi
+
+
+
+  #
+  if test "$want_ares" = "yes"; then
+        clean_CPPFLAGS="$CPPFLAGS"
+    clean_LDFLAGS="$LDFLAGS"
+    clean_LIBS="$LIBS"
+    configure_runpath=`pwd`
+    if test -n "$want_ares_path"; then
+            ARES_PCDIR="$want_ares_path/lib/pkgconfig"
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libcares options with pkg-config" >&5
+printf %s "checking for libcares options with pkg-config... " >&6; }
+            itexists=`
+    if test -n "$ARES_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$ARES_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libcares >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+      if test "$PKGCONFIG" != "no" ; then
+        ares_LIBS=`
+    if test -n "$ARES_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$ARES_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+          $PKGCONFIG --libs-only-l libcares`
+        ares_LDFLAGS=`
+    if test -n "$ARES_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$ARES_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+          $PKGCONFIG --libs-only-L libcares`
+        ares_CPPFLAGS=`
+    if test -n "$ARES_PCDIR"; then
+      PKG_CONFIG_LIBDIR="$ARES_PCDIR"
+      export PKG_CONFIG_LIBDIR
+    fi
+
+          $PKGCONFIG --cflags-only-I libcares`
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares LIBS: \"$ares_LIBS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares LIBS: \"$ares_LIBS\"" >&6;}
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares LDFLAGS: \"$ares_LDFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares LDFLAGS: \"$ares_LDFLAGS\"" >&6;}
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares CPPFLAGS: \"$ares_CPPFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares CPPFLAGS: \"$ares_CPPFLAGS\"" >&6;}
+      else
+                ares_CPPFLAGS="-I$want_ares_path/include"
+        ares_LDFLAGS="-L$want_ares_path/lib"
+        ares_LIBS="-lcares"
+      fi
+    else
+
+    if test -n "$PKG_CONFIG"; then
+      PKGCONFIG="$PKG_CONFIG"
+    else
+      if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKGCONFIG="$PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKGCONFIG=$ac_cv_path_PKGCONFIG
+if test -n "$PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKGCONFIG"; then
+  ac_pt_PKGCONFIG=$PKGCONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_ac_pt_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $ac_pt_PKGCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKGCONFIG="$ac_pt_PKGCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/bin:/usr/local/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKGCONFIG="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKGCONFIG=$ac_cv_path_ac_pt_PKGCONFIG
+if test -n "$ac_pt_PKGCONFIG"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKGCONFIG" >&5
+printf "%s\n" "$ac_pt_PKGCONFIG" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKGCONFIG" = x; then
+    PKGCONFIG="no"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKGCONFIG=$ac_pt_PKGCONFIG
+  fi
+else
+  PKGCONFIG="$ac_cv_path_PKGCONFIG"
+fi
+
+    fi
+
+    if test "x$PKGCONFIG" != "xno"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libcares options with pkg-config" >&5
+printf %s "checking for libcares options with pkg-config... " >&6; }
+            itexists=`
+    if test -n ""; then
+      PKG_CONFIG_LIBDIR=""
+      export PKG_CONFIG_LIBDIR
+    fi
+         $PKGCONFIG --exists libcares >/dev/null 2>&1 && echo 1`
+
+      if test -z "$itexists"; then
+                        PKGCONFIG="no"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
+printf "%s\n" "found" >&6; }
+      fi
+    fi
+
+      if test "$PKGCONFIG" != "no" ; then
+        ares_LIBS=`$PKGCONFIG --libs-only-l libcares`
+        ares_LDFLAGS=`$PKGCONFIG --libs-only-L libcares`
+        ares_CPPFLAGS=`$PKGCONFIG --cflags-only-I libcares`
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares_LIBS: \"$ares_LIBS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares_LIBS: \"$ares_LIBS\"" >&6;}
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares_LDFLAGS: \"$ares_LDFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares_LDFLAGS: \"$ares_LDFLAGS\"" >&6;}
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: pkg-config: ares_CPPFLAGS: \"$ares_CPPFLAGS\"" >&5
+printf "%s\n" "$as_me: pkg-config: ares_CPPFLAGS: \"$ares_CPPFLAGS\"" >&6;}
+      else
+        ares_CPPFLAGS=""
+        ares_LDFLAGS=""
+        ares_LIBS="-lcares"
+      fi
+    fi
+    #
+    CPPFLAGS="$clean_CPPFLAGS $ares_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS $ares_LDFLAGS"
+    LIBS="$ares_LIBS $clean_LIBS"
+    #
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking that c-ares is good and recent enough" >&5
+printf %s "checking that c-ares is good and recent enough... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#include 
+        /* set of dummy functions in case c-ares was built with debug */
+        void curl_dofree() { }
+        void curl_sclose() { }
+        void curl_domalloc() { }
+        void curl_docalloc() { }
+        void curl_socket() { }
+
+int main (void)
+{
+
+        ares_channel channel;
+        ares_cancel(channel); /* added in 1.2.0 */
+        ares_process_fd(channel, 0, 0); /* added in 1.4.0 */
+        ares_dup(&channel, channel); /* added in 1.6.0 */
+
+ ;
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+      as_fn_error $? "c-ares library defective or too old" "$LINENO" 5
+            CPPFLAGS="$clean_CPPFLAGS"
+      LDFLAGS="$clean_LDFLAGS"
+      LIBS="$clean_LIBS"
+      # prevent usage
+      want_ares="no"
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+    if test "$want_ares" = "yes"; then
+
+printf "%s\n" "#define USE_ARES 1" >>confdefs.h
+
+      USE_ARES=1
+
+      curl_res_msg="c-ares"
+    fi
+  fi
+
+
+if test "x$curl_cv_native_windows" != "xyes" &&
+   test "x$enable_shared" = "xyes"; then
+  build_libhostname=yes
+else
+  build_libhostname=no
+fi
+ if test x$build_libhostname = xyes; then
+  BUILD_LIBHOSTNAME_TRUE=
+  BUILD_LIBHOSTNAME_FALSE='#'
+else
+  BUILD_LIBHOSTNAME_TRUE='#'
+  BUILD_LIBHOSTNAME_FALSE=
+fi
+
+
+if test "x$want_ares" != xyes; then
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable the threaded resolver" >&5
+printf %s "checking whether to enable the threaded resolver... " >&6; }
+  OPT_THRES="default"
+  # Check whether --enable-threaded_resolver was given.
+if test ${enable_threaded_resolver+y}
+then :
+  enableval=$enable_threaded_resolver; OPT_THRES=$enableval
+fi
+
+  case "$OPT_THRES" in
+    no)
+            want_thres="no"
+      ;;
+    *)
+            want_thres="yes"
+      ;;
+  esac
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_thres" >&5
+printf "%s\n" "$want_thres" >&6; }
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use POSIX threads for threaded resolver" >&5
+printf %s "checking whether to use POSIX threads for threaded resolver... " >&6; }
+# Check whether --enable-pthreads was given.
+if test ${enable_pthreads+y}
+then :
+  enableval=$enable_pthreads;  case "$enableval" in
+  no)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       want_pthreads=no
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       want_pthreads=yes
+       ;;
+  esac
+else $as_nop
+
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: auto" >&5
+printf "%s\n" "auto" >&6; }
+       want_pthreads=auto
+
+
+fi
+
+
+if test "$want_pthreads" != "no"; then
+  if test "$want_pthreads" = "yes" && test "$dontwant_rt" = "yes"; then
+    as_fn_error $? "options --enable-pthreads and --disable-rt are mutually exclusive" "$LINENO" 5
+  fi
+  if test "$dontwant_rt" != "no"; then
+        if test "$want_pthreads" = "yes"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: --enable-pthreads Ignored since librt is disabled." >&5
+printf "%s\n" "$as_me: WARNING: --enable-pthreads Ignored since librt is disabled." >&2;}
+    fi
+    want_pthreads=no
+  fi
+fi
+
+if test "$want_pthreads" != "no" && test "$want_thres" != "yes"; then
+  want_pthreads=no
+fi
+
+if test "$want_pthreads" != "no"; then
+  ac_fn_c_check_header_compile "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+if test "x$ac_cv_header_pthread_h" = xyes
+then :
+
+printf "%s\n" "#define HAVE_PTHREAD_H 1" >>confdefs.h
+
+      save_CFLAGS="$CFLAGS"
+                                    save_LIBS="$LIBS"
+
+      LIBS=
+            ac_fn_c_check_func "$LINENO" "pthread_create" "ac_cv_func_pthread_create"
+if test "x$ac_cv_func_pthread_create" = xyes
+then :
+  USE_THREADS_POSIX=1
+fi
+
+      LIBS="$save_LIBS"
+
+            case $host in
+      *-hp-hpux*)
+                  USE_THREADS_POSIX=""
+         ;;
+      *)
+         ;;
+      esac
+
+            if test "$USE_THREADS_POSIX" != "1"
+      then
+        case $host in
+        *-ibm-aix*)
+                      COMPILER_VERSION=`"$CC" -qversion 2>/dev/null`
+           if test x"$COMPILER_VERSION" = "x"; then
+             CFLAGS="$CFLAGS -pthread"
+           else
+             CFLAGS="$CFLAGS -qthreaded"
+           fi
+           ;;
+        *)
+           CFLAGS="$CFLAGS -pthread"
+           ;;
+        esac
+        # assign PTHREAD for pkg-config use
+        PTHREAD=" -pthread"
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+printf %s "checking for pthread_create in -lpthread... " >&6; }
+if test ${ac_cv_lib_pthread_pthread_create+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int main (void)
+{
+return pthread_create ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_pthread_pthread_create=yes
+else $as_nop
+  ac_cv_lib_pthread_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+printf "%s\n" "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes
+then :
+  USE_THREADS_POSIX=1
+else $as_nop
+   CFLAGS="$save_CFLAGS"
+fi
+
+      fi
+
+      if test "x$USE_THREADS_POSIX" = "x1"
+      then
+
+printf "%s\n" "#define USE_THREADS_POSIX 1" >>confdefs.h
+
+        curl_res_msg="POSIX threaded"
+      fi
+
+fi
+
+fi
+
+if test "$want_thres" = "yes" && test "x$USE_THREADS_POSIX" != "x1"; then
+  if test "$want_pthreads" = "yes"; then
+    as_fn_error $? "--enable-pthreads but pthreads was not found" "$LINENO" 5
+  fi
+    if test "$curl_cv_native_windows" = "yes"; then
+    USE_THREADS_WIN32=1
+
+printf "%s\n" "#define USE_THREADS_WIN32 1" >>confdefs.h
+
+    curl_res_msg="Win32 threaded"
+  else
+    as_fn_error $? "Threaded resolver enabled but no thread library found" "$LINENO" 5
+  fi
+fi
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking convert -I options to -isystem" >&5
+printf %s "checking convert -I options to -isystem... " >&6; }
+  if test "$compiler_id" = "GNU_C" ||
+    test "$compiler_id" = "CLANG"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+    tmp_has_include="no"
+    tmp_chg_FLAGS="$CFLAGS"
+    for word1 in $tmp_chg_FLAGS; do
+      case "$word1" in
+        -I*)
+          tmp_has_include="yes"
+          ;;
+      esac
+    done
+    if test "$tmp_has_include" = "yes"; then
+      tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'`
+      tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'`
+      CFLAGS="$tmp_chg_FLAGS"
+      squeeze CFLAGS
+    fi
+    tmp_has_include="no"
+    tmp_chg_FLAGS="$CPPFLAGS"
+    for word1 in $tmp_chg_FLAGS; do
+      case "$word1" in
+        -I*)
+          tmp_has_include="yes"
+          ;;
+      esac
+    done
+    if test "$tmp_has_include" = "yes"; then
+      tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/^-I/ -isystem /g'`
+      tmp_chg_FLAGS=`echo "$tmp_chg_FLAGS" | "$SED" 's/ -I/ -isystem /g'`
+      CPPFLAGS="$tmp_chg_FLAGS"
+      squeeze CPPFLAGS
+    fi
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable verbose strings" >&5
+printf %s "checking whether to enable verbose strings... " >&6; }
+# Check whether --enable-verbose was given.
+if test ${enable_verbose+y}
+then :
+  enableval=$enable_verbose;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_VERBOSE_STRINGS 1" >>confdefs.h
+
+       curl_verbose_msg="no"
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable SSPI support (Windows native builds only)" >&5
+printf %s "checking whether to enable SSPI support (Windows native builds only)... " >&6; }
+# Check whether --enable-sspi was given.
+if test ${enable_sspi+y}
+then :
+  enableval=$enable_sspi;  case "$enableval" in
+  yes)
+       if test "$curl_cv_native_windows" = "yes"; then
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_WINDOWS_SSPI 1" >>confdefs.h
+
+         USE_WINDOWS_SSPI=1
+
+         curl_sspi_msg="enabled"
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: --enable-sspi Ignored. Only supported on native Windows builds." >&5
+printf "%s\n" "$as_me: WARNING: --enable-sspi Ignored. Only supported on native Windows builds." >&2;}
+       fi
+       ;;
+  *)
+       if test "x$SCHANNEL_ENABLED" = "x1"; then
+         # --with-schannel implies --enable-sspi
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       fi
+       ;;
+  esac
+else $as_nop
+  if test "x$SCHANNEL_ENABLED" = "x1"; then
+         # --with-schannel implies --enable-sspi
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       else
+         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       fi
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable cryptographic authentication methods" >&5
+printf %s "checking whether to enable cryptographic authentication methods... " >&6; }
+# Check whether --enable-crypto-auth was given.
+if test ${enable_crypto_auth+y}
+then :
+  enableval=$enable_crypto_auth;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_CRYPTO_AUTH 1" >>confdefs.h
+
+       CURL_DISABLE_CRYPTO_AUTH=1
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support NTLM" >&5
+printf %s "checking whether to support NTLM... " >&6; }
+# Check whether --enable-ntlm was given.
+if test ${enable_ntlm+y}
+then :
+  enableval=$enable_ntlm;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_NTLM 1" >>confdefs.h
+
+       CURL_DISABLE_NTLM=1
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+
+    OPT_NTLM_WB="default"
+  # Check whether --enable-ntlm-wb was given.
+if test ${enable_ntlm_wb+y}
+then :
+  enableval=$enable_ntlm_wb; OPT_NTLM_WB=$enableval
+fi
+
+  want_ntlm_wb_file="/usr/bin/ntlm_auth"
+  case "$OPT_NTLM_WB" in
+    no)
+            want_ntlm_wb="no"
+      ;;
+    default)
+            want_ntlm_wb="yes"
+      ;;
+    *)
+            want_ntlm_wb="yes"
+      if test -n "$enableval" && test "$enableval" != "yes"; then
+        want_ntlm_wb_file="$enableval"
+      fi
+      ;;
+  esac
+
+
+
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable NTLM delegation to winbind's helper" >&5
+printf %s "checking whether to enable NTLM delegation to winbind's helper... " >&6; }
+  if test "$curl_cv_native_windows" = "yes" ||
+    test "x$SSL_ENABLED" = "x"; then
+    want_ntlm_wb_file=""
+    want_ntlm_wb="no"
+  fi
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $want_ntlm_wb" >&5
+printf "%s\n" "$want_ntlm_wb" >&6; }
+  if test "$want_ntlm_wb" = "yes"; then
+
+printf "%s\n" "#define NTLM_WB_ENABLED 1" >>confdefs.h
+
+
+printf "%s\n" "#define NTLM_WB_FILE \"$want_ntlm_wb_file\"" >>confdefs.h
+
+    NTLM_WB_ENABLED=1
+  fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable TLS-SRP authentication" >&5
+printf %s "checking whether to enable TLS-SRP authentication... " >&6; }
+# Check whether --enable-tls-srp was given.
+if test ${enable_tls_srp+y}
+then :
+  enableval=$enable_tls_srp;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       want_tls_srp=no
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       want_tls_srp=yes
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       want_tls_srp=yes
+
+fi
+
+
+if test "$want_tls_srp" = "yes" && ( test "x$HAVE_GNUTLS_SRP" = "x1" || test "x$HAVE_OPENSSL_SRP" = "x1") ; then
+
+printf "%s\n" "#define USE_TLS_SRP 1" >>confdefs.h
+
+   USE_TLS_SRP=1
+   curl_tls_srp_msg="enabled"
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable Unix domain sockets" >&5
+printf %s "checking whether to enable Unix domain sockets... " >&6; }
+# Check whether --enable-unix-sockets was given.
+if test ${enable_unix_sockets+y}
+then :
+  enableval=$enable_unix_sockets;  case "$enableval" in
+  no)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       want_unix_sockets=no
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       want_unix_sockets=yes
+       ;;
+  esac
+else $as_nop
+
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: auto" >&5
+printf "%s\n" "auto" >&6; }
+       want_unix_sockets=auto
+
+
+fi
+
+if test "x$want_unix_sockets" != "xno"; then
+  ac_fn_c_check_member "$LINENO" "struct sockaddr_un" "sun_path" "ac_cv_member_struct_sockaddr_un_sun_path" "
+    #include 
+
+"
+if test "x$ac_cv_member_struct_sockaddr_un_sun_path" = xyes
+then :
+
+
+printf "%s\n" "#define USE_UNIX_SOCKETS 1" >>confdefs.h
+
+    USE_UNIX_SOCKETS=1
+
+    curl_unix_sockets_msg="enabled"
+
+else $as_nop
+
+    if test "x$want_unix_sockets" = "xyes"; then
+      as_fn_error $? "--enable-unix-sockets is not available on this platform!" "$LINENO" 5
+    fi
+
+fi
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support cookies" >&5
+printf %s "checking whether to support cookies... " >&6; }
+# Check whether --enable-cookies was given.
+if test ${enable_cookies+y}
+then :
+  enableval=$enable_cookies;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_COOKIES 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support socketpair" >&5
+printf %s "checking whether to support socketpair... " >&6; }
+# Check whether --enable-socketpair was given.
+if test ${enable_socketpair+y}
+then :
+  enableval=$enable_socketpair;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_SOCKETPAIR 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support HTTP authentication" >&5
+printf %s "checking whether to support HTTP authentication... " >&6; }
+# Check whether --enable-http-auth was given.
+if test ${enable_http_auth+y}
+then :
+  enableval=$enable_http_auth;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_HTTP_AUTH 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support DoH" >&5
+printf %s "checking whether to support DoH... " >&6; }
+# Check whether --enable-doh was given.
+if test ${enable_doh+y}
+then :
+  enableval=$enable_doh;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_DOH 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support the MIME API" >&5
+printf %s "checking whether to support the MIME API... " >&6; }
+# Check whether --enable-mime was given.
+if test ${enable_mime+y}
+then :
+  enableval=$enable_mime;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_MIME 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support date parsing" >&5
+printf %s "checking whether to support date parsing... " >&6; }
+# Check whether --enable-dateparse was given.
+if test ${enable_dateparse+y}
+then :
+  enableval=$enable_dateparse;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_PARSEDATE 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support netrc parsing" >&5
+printf %s "checking whether to support netrc parsing... " >&6; }
+# Check whether --enable-netrc was given.
+if test ${enable_netrc+y}
+then :
+  enableval=$enable_netrc;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_NETRC 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support progress-meter" >&5
+printf %s "checking whether to support progress-meter... " >&6; }
+# Check whether --enable-progress-meter was given.
+if test ${enable_progress_meter+y}
+then :
+  enableval=$enable_progress_meter;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_PROGRESS_METER 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support DNS shuffling" >&5
+printf %s "checking whether to support DNS shuffling... " >&6; }
+# Check whether --enable-dnsshuffle was given.
+if test ${enable_dnsshuffle+y}
+then :
+  enableval=$enable_dnsshuffle;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_SHUFFLE_DNS 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support curl_easy_option*" >&5
+printf %s "checking whether to support curl_easy_option*... " >&6; }
+# Check whether --enable-get-easy-options was given.
+if test ${enable_get_easy_options+y}
+then :
+  enableval=$enable_get_easy_options;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_GETOPTIONS 1" >>confdefs.h
+
+       ;;
+  *)   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support alt-svc" >&5
+printf %s "checking whether to support alt-svc... " >&6; }
+# Check whether --enable-alt-svc was given.
+if test ${enable_alt_svc+y}
+then :
+  enableval=$enable_alt_svc;  case "$enableval" in
+  no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+printf "%s\n" "#define CURL_DISABLE_ALTSVC 1" >>confdefs.h
+
+       curl_altsvc_msg="no";
+       enable_altsvc="no"
+       ;;
+  *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+fi
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support headers-api" >&5
+printf %s "checking whether to support headers-api... " >&6; }
+# Check whether --enable-headers-api was given.
+if test ${enable_headers_api+y}
+then :
+  enableval=$enable_headers_api;  case "$enableval" in
+  yes)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+printf "%s\n" "#define USE_HEADERS_API 1" >>confdefs.h
+
+       curl_headers_msg="enabled";
+       ;;
+  *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       ;;
+  esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+
+fi
+
+
+if test -n "$SSL_ENABLED"; then
+
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to support HSTS" >&5
+printf %s "checking whether to support HSTS... " >&6; }
+  # Check whether --enable-hsts was given.
+if test ${enable_hsts+y}
+then :
+  enableval=$enable_hsts;  case "$enableval" in
+    no)
+       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+       hsts="no"
+       ;;
+    *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+       ;;
+    esac
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $hsts" >&5
+printf "%s\n" "$hsts" >&6; }
+
+fi
+
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: disables HSTS due to lack of SSL" >&5
+printf "%s\n" "$as_me: disables HSTS due to lack of SSL" >&6;}
+  hsts="no"
+fi
+
+if test "x$hsts" != "xyes"; then
+  curl_hsts_msg="no      (--enable-hsts)";
+
+printf "%s\n" "#define CURL_DISABLE_HSTS 1" >>confdefs.h
+
+fi
+
+if test "x$want_ech" != "xno"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ECH support is available" >&5
+printf %s "checking whether ECH support is available... " >&6; }
+
+    ECH_ENABLED=0
+  ECH_SUPPORT=''
+
+      if test "x$OPENSSL_ENABLED" = "x1"; then
+
+  for ac_func in SSL_get_ech_status
+do :
+  ac_fn_c_check_func "$LINENO" "SSL_get_ech_status" "ac_cv_func_SSL_get_ech_status"
+if test "x$ac_cv_func_SSL_get_ech_status" = xyes
+then :
+  printf "%s\n" "#define HAVE_SSL_GET_ECH_STATUS 1" >>confdefs.h
+ ECH_SUPPORT="ECH support available (OpenSSL with SSL_get_ech_status)"
+      ECH_ENABLED=1
+fi
+
+done
+
+    fi
+
+    if test "x$ECH_ENABLED" = "x1"; then
+
+printf "%s\n" "#define USE_ECH 1" >>confdefs.h
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ECH_SUPPORT" >&5
+printf "%s\n" "$ECH_SUPPORT" >&6; }
+    experimental="$experimental ECH"
+  else
+    as_fn_error $? "--enable-ech ignored: No ECH support found" "$LINENO" 5
+  fi
+fi
+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether hiding of library internal symbols will actually happen" >&5
+printf %s "checking whether hiding of library internal symbols will actually happen... " >&6; }
+  CFLAG_CURL_SYMBOL_HIDING=""
+  doing_symbol_hiding="no"
+  if test x"$curl_cv_native_windows" != "xyes" &&
+    test "$want_symbol_hiding" = "yes" &&
+    test "$supports_symbol_hiding" = "yes"; then
+    doing_symbol_hiding="yes"
+    CFLAG_CURL_SYMBOL_HIDING="$symbol_hiding_CFLAGS"
+
+printf "%s\n" "#define CURL_EXTERN_SYMBOL $symbol_hiding_EXTERN" >>confdefs.h
+
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+  fi
+   if test x$doing_symbol_hiding = xyes; then
+  DOING_CURL_SYMBOL_HIDING_TRUE=
+  DOING_CURL_SYMBOL_HIDING_FALSE='#'
+else
+  DOING_CURL_SYMBOL_HIDING_TRUE='#'
+  DOING_CURL_SYMBOL_HIDING_FALSE=
+fi
+
+
+
+
+LIBCURL_LIBS="$LIBS$PTHREAD"
+
+
+
+
+
+BLANK_AT_MAKETIME=
+
+
+ if test x$cross_compiling = xyes; then
+  CROSSCOMPILING_TRUE=
+  CROSSCOMPILING_FALSE='#'
+else
+  CROSSCOMPILING_TRUE='#'
+  CROSSCOMPILING_FALSE=
+fi
+
+
+ENABLE_SHARED="$enable_shared"
+
+
+ENABLE_STATIC="$enable_static"
+
+
+if test "x$enable_shared" = "xno"; then
+  LIBCURL_NO_SHARED=$LIBCURL_LIBS
+else
+  LIBCURL_NO_SHARED=
+fi
+
+
+
+if test "x$OPENSSL_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSL"
+elif test -n "$SSL_ENABLED"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSL"
+fi
+if test "x$IPV6_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES IPv6"
+fi
+if test "x$USE_UNIX_SOCKETS" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES UnixSockets"
+fi
+if test "x$HAVE_LIBZ" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES libz"
+fi
+if test "x$HAVE_BROTLI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES brotli"
+fi
+if test "x$HAVE_ZSTD" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES zstd"
+fi
+if test "x$USE_ARES" = "x1" -o "x$USE_THREADS_POSIX" = "x1" \
+                            -o "x$USE_THREADS_WIN32" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES AsynchDNS"
+fi
+if test "x$IDN_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES IDN"
+fi
+if test "x$USE_WINDOWS_SSPI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSPI"
+fi
+
+if test "x$HAVE_GSSAPI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES GSS-API"
+fi
+
+if test "x$curl_psl_msg" = "xenabled"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES PSL"
+fi
+
+if test "x$curl_gsasl_msg" = "xenabled"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES GSASL"
+fi
+
+if test "x$enable_altsvc" = "xyes"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES alt-svc"
+fi
+if test "x$hsts" = "xyes"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HSTS"
+fi
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    \( "x$HAVE_GSSAPI" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \); then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SPNEGO"
+fi
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    \( "x$HAVE_GSSAPI" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \); then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES Kerberos"
+fi
+
+use_curl_ntlm_core=no
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    "x$CURL_DISABLE_NTLM" != "x1"; then
+  if test "x$OPENSSL_ENABLED" = "x1" -o "x$MBEDTLS_ENABLED" = "x1" \
+      -o "x$GNUTLS_ENABLED" = "x1" -o "x$NSS_ENABLED" = "x1" \
+      -o "x$SECURETRANSPORT_ENABLED" = "x1" \
+      -o "x$USE_WIN32_CRYPTO" = "x1" \
+      -o "x$WOLFSSL_NTLM" = "x1"; then
+    use_curl_ntlm_core=yes
+  fi
+
+  if test "x$use_curl_ntlm_core" = "xyes" \
+      -o "x$USE_WINDOWS_SSPI" = "x1"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM"
+
+    if test "x$CURL_DISABLE_HTTP" != "x1" -a \
+        "x$NTLM_WB_ENABLED" = "x1"; then
+      SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM_WB"
+    fi
+  fi
+fi
+
+if test "x$USE_TLS_SRP" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES TLS-SRP"
+fi
+
+if test "x$USE_NGHTTP2" = "x1" -o "x$USE_HYPER" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP2"
+fi
+
+if test "x$USE_NGTCP2" = "x1" -o "x$USE_QUICHE" = "x1" \
+    -o "x$USE_MSH3" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP3"
+fi
+
+if test "x$CURL_WITH_MULTI_SSL" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES MultiSSL"
+fi
+
+if test "x$https_proxy" != "xno"; then
+  if test "x$OPENSSL_ENABLED" = "x1" -o "x$GNUTLS_ENABLED" = "x1" \
+      -o "x$NSS_ENABLED" = "x1"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES HTTPS-proxy"
+  fi
+fi
+
+if test "x$ECH_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES ECH"
+fi
+
+if test ${ac_cv_sizeof_curl_off_t} -gt 4; then
+  if test ${ac_cv_sizeof_off_t} -gt 4 -o \
+     "$curl_win32_file_api" = "win32_large_files"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES Largefile"
+  fi
+fi
+
+SUPPORT_FEATURES=`echo $SUPPORT_FEATURES | tr ' ' '\012' | sort | tr '\012' ' '`
+
+
+if test "x$CURL_DISABLE_HTTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS HTTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS HTTPS"
+  fi
+fi
+if test "x$CURL_DISABLE_FTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FTPS"
+  fi
+fi
+if test "x$CURL_DISABLE_FILE" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FILE"
+fi
+if test "x$CURL_DISABLE_TELNET" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS TELNET"
+fi
+if test "x$CURL_DISABLE_LDAP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS LDAP"
+  if test "x$CURL_DISABLE_LDAPS" != "x1"; then
+    if (test "x$USE_OPENLDAP" = "x1" && test "x$SSL_ENABLED" = "x1") ||
+      (test "x$USE_OPENLDAP" != "x1"  && test "x$HAVE_LDAP_SSL" = "x1"); then
+      SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS LDAPS"
+    fi
+  fi
+fi
+if test "x$CURL_DISABLE_DICT" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS DICT"
+fi
+if test "x$CURL_DISABLE_TFTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS TFTP"
+fi
+if test "x$CURL_DISABLE_GOPHER" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS GOPHER"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS GOPHERS"
+  fi
+fi
+if test "x$CURL_DISABLE_MQTT" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS MQTT"
+fi
+if test "x$CURL_DISABLE_POP3" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS POP3"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS POP3S"
+  fi
+fi
+if test "x$CURL_DISABLE_IMAP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS IMAP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS IMAPS"
+  fi
+fi
+if test "x$CURL_DISABLE_SMB" != "x1" \
+    -a "x$use_curl_ntlm_core" = "xyes"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMB"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMBS"
+  fi
+fi
+if test "x$CURL_DISABLE_SMTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMTPS"
+  fi
+fi
+if test "x$USE_LIBSSH2" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SCP"
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$USE_LIBSSH" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SCP"
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$USE_WOLFSSH" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$CURL_DISABLE_RTSP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTSP"
+fi
+if test "x$USE_LIBRTMP" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTMP"
+fi
+
+SUPPORT_PROTOCOLS=`echo $SUPPORT_PROTOCOLS | tr ' ' '\012' | sort | tr '\012' ' '`
+
+
+
+
+squeeze CFLAGS
+squeeze CPPFLAGS
+squeeze DEFS
+squeeze LDFLAGS
+squeeze LIBS
+
+squeeze LIBCURL_LIBS
+squeeze CURL_NETWORK_LIBS
+squeeze CURL_NETWORK_AND_TIME_LIBS
+
+squeeze SUPPORT_FEATURES
+squeeze SUPPORT_PROTOCOLS
+
+
+
+  xc_bad_var_libs=no
+  for xc_word in $LIBS; do
+    case "$xc_word" in
+      -l* | --library=*)
+        :
+        ;;
+      *)
+        xc_bad_var_libs=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_libs = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using LIBS: $LIBS" >&5
+printf "%s\n" "$as_me: using LIBS: $LIBS" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: LIBS note: LIBS should only be used to specify libraries (-lname)." >&5
+printf "%s\n" "$as_me: LIBS note: LIBS should only be used to specify libraries (-lname)." >&6;}
+  fi
+
+
+  xc_bad_var_ldflags=no
+  for xc_word in $LDFLAGS; do
+    case "$xc_word" in
+      -D*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -U*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -I*)
+        xc_bad_var_ldflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_ldflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_ldflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using LDFLAGS: $LDFLAGS" >&5
+printf "%s\n" "$as_me: using LDFLAGS: $LDFLAGS" >&6;}
+    xc_bad_var_msg="LDFLAGS note: LDFLAGS should only be used to specify linker flags, not"
+    for xc_word in $LDFLAGS; do
+      case "$xc_word" in
+        -D*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -U*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -I*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+
+  xc_bad_var_cppflags=no
+  for xc_word in $CPPFLAGS; do
+    case "$xc_word" in
+      -rpath*)
+        xc_bad_var_cppflags=yes
+        ;;
+      -L* | --library-path=*)
+        xc_bad_var_cppflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_cppflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_cppflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using CPPFLAGS: $CPPFLAGS" >&5
+printf "%s\n" "$as_me: using CPPFLAGS: $CPPFLAGS" >&6;}
+    xc_bad_var_msg="CPPFLAGS note: CPPFLAGS should only be used to specify C preprocessor flags, not"
+    for xc_word in $CPPFLAGS; do
+      case "$xc_word" in
+        -rpath*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -L* | --library-path=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+
+  xc_bad_var_cflags=no
+  for xc_word in $CFLAGS; do
+    case "$xc_word" in
+      -D*)
+        xc_bad_var_cflags=yes
+        ;;
+      -U*)
+        xc_bad_var_cflags=yes
+        ;;
+      -I*)
+        xc_bad_var_cflags=yes
+        ;;
+      -rpath*)
+        xc_bad_var_cflags=yes
+        ;;
+      -L* | --library-path=*)
+        xc_bad_var_cflags=yes
+        ;;
+      -l* | --library=*)
+        xc_bad_var_cflags=yes
+        ;;
+    esac
+  done
+  if test $xc_bad_var_cflags = yes; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: using CFLAGS: $CFLAGS" >&5
+printf "%s\n" "$as_me: using CFLAGS: $CFLAGS" >&6;}
+    xc_bad_var_msg="CFLAGS note: CFLAGS should only be used to specify C compiler flags, not"
+    for xc_word in $CFLAGS; do
+      case "$xc_word" in
+        -D*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro definitions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -U*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg macro suppressions. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -I*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg include directories. Use CPPFLAGS for: $xc_word" >&6;}
+          ;;
+        -rpath*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library runtime directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -L* | --library-path=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg library directories. Use LDFLAGS for: $xc_word" >&6;}
+          ;;
+        -l* | --library=*)
+          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&5
+printf "%s\n" "$as_me: $xc_bad_var_msg libraries. Use LIBS for: $xc_word" >&6;}
+          ;;
+      esac
+    done
+  fi
+
+  if test $xc_bad_var_libs = yes ||
+     test $xc_bad_var_cflags = yes ||
+     test $xc_bad_var_ldflags = yes ||
+     test $xc_bad_var_cppflags = yes; then
+     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Continuing even with errors mentioned immediately above this line." >&5
+printf "%s\n" "$as_me: WARNING: Continuing even with errors mentioned immediately above this line." >&2;}
+  fi
+
+
+SSL_BACKENDS=${ssl_backends}
+
+
+if test "x$want_curldebug_assumed" = "xyes" &&
+  test "x$want_curldebug" = "xyes" && test "x$USE_ARES" = "x1"; then
+  ac_configure_args="$ac_configure_args --enable-curldebug"
+fi
+
+ac_config_files="$ac_config_files Makefile docs/Makefile docs/examples/Makefile docs/libcurl/Makefile docs/libcurl/opts/Makefile docs/cmdline-opts/Makefile include/Makefile include/curl/Makefile src/Makefile lib/Makefile scripts/Makefile lib/libcurl.vers lib/libcurl.plist tests/Makefile tests/certs/Makefile tests/certs/scripts/Makefile tests/data/Makefile tests/server/Makefile tests/libtest/Makefile tests/unit/Makefile packages/Makefile packages/vms/Makefile curl-config libcurl.pc"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
+  as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+printf %s "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: done" >&5
+printf "%s\n" "done" >&6; }
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${CURL_LT_SHLIB_USE_VERSION_INFO_TRUE}" && test -z "${CURL_LT_SHLIB_USE_VERSION_INFO_FALSE}"; then
+  as_fn_error $? "conditional \"CURL_LT_SHLIB_USE_VERSION_INFO\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CURL_LT_SHLIB_USE_NO_UNDEFINED_TRUE}" && test -z "${CURL_LT_SHLIB_USE_NO_UNDEFINED_FALSE}"; then
+  as_fn_error $? "conditional \"CURL_LT_SHLIB_USE_NO_UNDEFINED\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CURL_LT_SHLIB_USE_MIMPURE_TEXT_TRUE}" && test -z "${CURL_LT_SHLIB_USE_MIMPURE_TEXT_FALSE}"; then
+  as_fn_error $? "conditional \"CURL_LT_SHLIB_USE_MIMPURE_TEXT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_CPPFLAG_CURL_STATICLIB_TRUE}" && test -z "${USE_CPPFLAG_CURL_STATICLIB_FALSE}"; then
+  as_fn_error $? "conditional \"USE_CPPFLAG_CURL_STATICLIB\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_EXPLICIT_LIB_DEPS_TRUE}" && test -z "${USE_EXPLICIT_LIB_DEPS_FALSE}"; then
+  as_fn_error $? "conditional \"USE_EXPLICIT_LIB_DEPS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CURLDEBUG_TRUE}" && test -z "${CURLDEBUG_FALSE}"; then
+  as_fn_error $? "conditional \"CURLDEBUG\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_UNITTESTS_TRUE}" && test -z "${BUILD_UNITTESTS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_UNITTESTS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${DOING_NATIVE_WINDOWS_TRUE}" && test -z "${DOING_NATIVE_WINDOWS_FALSE}"; then
+  as_fn_error $? "conditional \"DOING_NATIVE_WINDOWS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LIBZ_TRUE}" && test -z "${HAVE_LIBZ_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_LIBZ\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_STUB_GSS_TRUE}" && test -z "${BUILD_STUB_GSS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_STUB_GSS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_LIBPSL_TRUE}" && test -z "${USE_LIBPSL_FALSE}"; then
+  as_fn_error $? "conditional \"USE_LIBPSL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_GSASL_TRUE}" && test -z "${USE_GSASL_FALSE}"; then
+  as_fn_error $? "conditional \"USE_GSASL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_TRUE}" && test -z "${CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS_FALSE}"; then
+  as_fn_error $? "conditional \"CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_MANUAL_TRUE}" && test -z "${USE_MANUAL_FALSE}"; then
+  as_fn_error $? "conditional \"USE_MANUAL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_LIBHOSTNAME_TRUE}" && test -z "${BUILD_LIBHOSTNAME_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_LIBHOSTNAME\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${DOING_CURL_SYMBOL_HIDING_TRUE}" && test -z "${DOING_CURL_SYMBOL_HIDING_FALSE}"; then
+  as_fn_error $? "conditional \"DOING_CURL_SYMBOL_HIDING\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CROSSCOMPILING_TRUE}" && test -z "${CROSSCOMPILING_FALSE}"; then
+  as_fn_error $? "conditional \"CROSSCOMPILING\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else $as_nop
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
+as_nl='
+'
+export as_nl
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
+
+
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  printf "%s\n" "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else $as_nop
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else $as_nop
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by curl $as_me -, which was
+generated by GNU Autoconf 2.71.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to ."
+
+_ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config='$ac_cs_config_escaped'
+ac_cs_version="\\
+curl config.status -
+configured by $0, generated by GNU Autoconf 2.71,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2021 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    printf "%s\n" "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    printf "%s\n" "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    printf "%s\n" "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  printf "%s\n" "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+AS='`$ECHO "$AS" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+FILECMD='`$ECHO "$FILECMD" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+lt_ar_flags='`$ECHO "$lt_ar_flags" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
+configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in AS \
+DLLTOOL \
+OBJDUMP \
+SHELL \
+ECHO \
+PATH_SEPARATOR \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+FILECMD \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+sharedlib_from_linklib_cmd \
+AR \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_import \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_cv_nm_interface \
+nm_file_list_spec \
+lt_cv_truncate_bin \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+configure_time_dlsearch_path \
+configure_time_lt_sys_library_path; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "lib/curl_config.h") CONFIG_HEADERS="$CONFIG_HEADERS lib/curl_config.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "docs/Makefile") CONFIG_FILES="$CONFIG_FILES docs/Makefile" ;;
+    "docs/examples/Makefile") CONFIG_FILES="$CONFIG_FILES docs/examples/Makefile" ;;
+    "docs/libcurl/Makefile") CONFIG_FILES="$CONFIG_FILES docs/libcurl/Makefile" ;;
+    "docs/libcurl/opts/Makefile") CONFIG_FILES="$CONFIG_FILES docs/libcurl/opts/Makefile" ;;
+    "docs/cmdline-opts/Makefile") CONFIG_FILES="$CONFIG_FILES docs/cmdline-opts/Makefile" ;;
+    "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
+    "include/curl/Makefile") CONFIG_FILES="$CONFIG_FILES include/curl/Makefile" ;;
+    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+    "lib/Makefile") CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
+    "scripts/Makefile") CONFIG_FILES="$CONFIG_FILES scripts/Makefile" ;;
+    "lib/libcurl.vers") CONFIG_FILES="$CONFIG_FILES lib/libcurl.vers" ;;
+    "lib/libcurl.plist") CONFIG_FILES="$CONFIG_FILES lib/libcurl.plist" ;;
+    "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
+    "tests/certs/Makefile") CONFIG_FILES="$CONFIG_FILES tests/certs/Makefile" ;;
+    "tests/certs/scripts/Makefile") CONFIG_FILES="$CONFIG_FILES tests/certs/scripts/Makefile" ;;
+    "tests/data/Makefile") CONFIG_FILES="$CONFIG_FILES tests/data/Makefile" ;;
+    "tests/server/Makefile") CONFIG_FILES="$CONFIG_FILES tests/server/Makefile" ;;
+    "tests/libtest/Makefile") CONFIG_FILES="$CONFIG_FILES tests/libtest/Makefile" ;;
+    "tests/unit/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit/Makefile" ;;
+    "packages/Makefile") CONFIG_FILES="$CONFIG_FILES packages/Makefile" ;;
+    "packages/vms/Makefile") CONFIG_FILES="$CONFIG_FILES packages/vms/Makefile" ;;
+    "curl-config") CONFIG_FILES="$CONFIG_FILES curl-config" ;;
+    "libcurl.pc") CONFIG_FILES="$CONFIG_FILES libcurl.pc" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
+  test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
+  test ${CONFIG_COMMANDS+y} || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' >$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' >$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf "%s\n" "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      printf "%s\n" "/* $configure_input  */" >&1 \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    printf "%s\n" "/* $configure_input  */" >&1 \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+printf "%s\n" "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Older Autoconf quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
+  shift
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
+  do
+    # Strip MF so we end up with the name of the file.
+    am_mf=`printf "%s\n" "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X"$am_mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+printf "%s\n" X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
+  done
+  if test $am_rc -ne 0; then
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE=\"gmake\" (or whatever is
+    necessary).  You can also try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
+}
+ ;;
+    "libtool":C)
+
+    # See if we are running on zsh, and set the options that allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}"; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile=${ofile}T
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+
+# The names of the tagged configurations supported by this script.
+available_tags=''
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Assembler program.
+AS=$lt_AS
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Object dumper program.
+OBJDUMP=$lt_OBJDUMP
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=$shared_archive_member_spec
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# A file(cmd) program that detects file types.
+FILECMD=$lt_FILECMD
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive (by configure).
+lt_ar_flags=$lt_ar_flags
+
+# Flags to create an archive.
+AR_FLAGS=\${ARFLAGS-"\$lt_ar_flags"}
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# The name lister interface.
+nm_interface=$lt_lt_cv_nm_interface
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and where our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# Command to truncate a binary pipe.
+lt_truncate_bin=$lt_lt_cv_truncate_bin
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+    cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  $SED '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+ ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+
+    tmp_cpp=`eval echo "$ac_cpp" 2>/dev/null`
+  if test -z "$tmp_cpp"; then
+    tmp_cpp='cpp'
+  fi
+  cat >./tests/configurehelp.pm <<_EOF
+# This is a generated file.  Do not edit.
+
+package configurehelp;
+
+use strict;
+use warnings;
+use Exporter;
+
+use vars qw(
+    @ISA
+    @EXPORT_OK
+    \$Cpreprocessor
+    );
+
+@ISA = qw(Exporter);
+
+@EXPORT_OK = qw(
+    \$Cpreprocessor
+    );
+
+\$Cpreprocessor = '$tmp_cpp';
+
+1;
+_EOF
+
+
+
+## ---------------------------------- ##
+##  Start of distclean amending code  ##
+## ---------------------------------- ##
+
+for xc_subdir in lib src tests/unit tests/server tests/libtest docs/examples
+do
+
+if test ! -f "$xc_subdir/Makefile"; then
+  echo "$xc_msg_err $xc_subdir/Makefile file not found. $xc_msg_abrt" >&2
+  exit 1
+fi
+
+# Fetch dependency tracking file list from Makefile include lines.
+
+xc_inc_lines=`grep '^include .*(DEPDIR)' "$xc_subdir/Makefile" 2>/dev/null`
+xc_cnt_words=`echo "$xc_inc_lines" | wc -w | tr -d "$xc_space$xc_tab"`
+
+# --disable-dependency-tracking might have been used, consequently
+# there is nothing to amend without a dependency tracking file list.
+
+if test $xc_cnt_words -gt 0; then
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: amending $xc_subdir/Makefile" >&5
+printf "%s\n" "$as_me: amending $xc_subdir/Makefile" >&6;}
+
+# Build Makefile specific patch hunk.
+
+xc_p="$xc_subdir/xc_patch.tmp"
+
+xc_rm_depfiles=`echo "$xc_inc_lines" \
+  | $SED 's%include%	-rm -f%' 2>/dev/null`
+
+xc_dep_subdirs=`echo "$xc_inc_lines" \
+  | $SED 's%include[ ][ ]*%%' 2>/dev/null \
+  | $SED 's%(DEPDIR)/.*%(DEPDIR)%' 2>/dev/null \
+  | sort | uniq`
+
+echo "$xc_rm_depfiles" >$xc_p
+
+for xc_dep_dir in $xc_dep_subdirs; do
+  echo "${xc_tab}@xm_dep_cnt=\`ls $xc_dep_dir | wc -l 2>/dev/null\`; \\"            >>$xc_p
+  echo "${xc_tab}if test \$\$xm_dep_cnt -eq 0 && test -d $xc_dep_dir; then \\"      >>$xc_p
+  echo "${xc_tab}  rm -rf $xc_dep_dir; \\"                                          >>$xc_p
+  echo "${xc_tab}fi"                                                                >>$xc_p
+done
+
+# Build Makefile patching sed scripts.
+
+xc_s1="$xc_subdir/xc_script_1.tmp"
+xc_s2="$xc_subdir/xc_script_2.tmp"
+xc_s3="$xc_subdir/xc_script_3.tmp"
+
+cat >$xc_s1 <<\_EOT
+/^distclean[ ]*:/,/^[^	][^	]*:/{
+  s/^.*(DEPDIR)/___xc_depdir_line___/
+}
+/^maintainer-clean[ ]*:/,/^[^	][^	]*:/{
+  s/^.*(DEPDIR)/___xc_depdir_line___/
+}
+_EOT
+
+cat >$xc_s2 <<\_EOT
+/___xc_depdir_line___$/{
+  N
+  /___xc_depdir_line___$/D
+}
+_EOT
+
+cat >$xc_s3 <<_EOT
+/^___xc_depdir_line___/{
+  r $xc_p
+  d
+}
+_EOT
+
+# Apply patch to Makefile and cleanup.
+
+$SED -f "$xc_s1" "$xc_subdir/Makefile"      >"$xc_subdir/Makefile.tmp1"
+$SED -f "$xc_s2" "$xc_subdir/Makefile.tmp1" >"$xc_subdir/Makefile.tmp2"
+$SED -f "$xc_s3" "$xc_subdir/Makefile.tmp2" >"$xc_subdir/Makefile.tmp3"
+
+if test -f "$xc_subdir/Makefile.tmp3"; then
+  mv -f "$xc_subdir/Makefile.tmp3" "$xc_subdir/Makefile"
+fi
+
+test -f "$xc_subdir/Makefile.tmp1" && rm -f "$xc_subdir/Makefile.tmp1"
+test -f "$xc_subdir/Makefile.tmp2" && rm -f "$xc_subdir/Makefile.tmp2"
+test -f "$xc_subdir/Makefile.tmp3" && rm -f "$xc_subdir/Makefile.tmp3"
+
+test -f "$xc_p"  && rm -f "$xc_p"
+test -f "$xc_s1" && rm -f "$xc_s1"
+test -f "$xc_s2" && rm -f "$xc_s2"
+test -f "$xc_s3" && rm -f "$xc_s3"
+
+fi
+
+done
+
+## -------------------------------- ##
+##  End of distclean amending code  ##
+## -------------------------------- ##
+
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Configured to build curl/libcurl:
+
+  Host setup:       ${host}
+  Install prefix:   ${prefix}
+  Compiler:         ${CC}
+   CFLAGS:          ${CFLAGS}
+   CPPFLAGS:        ${CPPFLAGS}
+   LDFLAGS:         ${LDFLAGS}
+   LIBS:            ${LIBS}
+
+  curl version:     ${CURLVERSION}
+  SSL:              ${curl_ssl_msg}
+  SSH:              ${curl_ssh_msg}
+  zlib:             ${curl_zlib_msg}
+  brotli:           ${curl_brotli_msg}
+  zstd:             ${curl_zstd_msg}
+  GSS-API:          ${curl_gss_msg}
+  GSASL:            ${curl_gsasl_msg}
+  TLS-SRP:          ${curl_tls_srp_msg}
+  resolver:         ${curl_res_msg}
+  IPv6:             ${curl_ipv6_msg}
+  Unix sockets:     ${curl_unix_sockets_msg}
+  IDN:              ${curl_idn_msg}
+  Build libcurl:    Shared=${enable_shared}, Static=${enable_static}
+  Built-in manual:  ${curl_manual_msg}
+  --libcurl option: ${curl_libcurl_msg}
+  Verbose errors:   ${curl_verbose_msg}
+  Code coverage:    ${curl_coverage_msg}
+  SSPI:             ${curl_sspi_msg}
+  ca cert bundle:   ${ca}${ca_warning}
+  ca cert path:     ${capath}${capath_warning}
+  ca fallback:      ${with_ca_fallback}
+  LDAP:             ${curl_ldap_msg}
+  LDAPS:            ${curl_ldaps_msg}
+  RTSP:             ${curl_rtsp_msg}
+  RTMP:             ${curl_rtmp_msg}
+  PSL:              ${curl_psl_msg}
+  Alt-svc:          ${curl_altsvc_msg}
+  Headers API:      ${curl_headers_msg}
+  HSTS:             ${curl_hsts_msg}
+  HTTP1:            ${curl_h1_msg}
+  HTTP2:            ${curl_h2_msg}
+  HTTP3:            ${curl_h3_msg}
+  ECH:              ${curl_ech_msg}
+  Protocols:        ${SUPPORT_PROTOCOLS}
+  Features:         ${SUPPORT_FEATURES}
+" >&5
+printf "%s\n" "$as_me: Configured to build curl/libcurl:
+
+  Host setup:       ${host}
+  Install prefix:   ${prefix}
+  Compiler:         ${CC}
+   CFLAGS:          ${CFLAGS}
+   CPPFLAGS:        ${CPPFLAGS}
+   LDFLAGS:         ${LDFLAGS}
+   LIBS:            ${LIBS}
+
+  curl version:     ${CURLVERSION}
+  SSL:              ${curl_ssl_msg}
+  SSH:              ${curl_ssh_msg}
+  zlib:             ${curl_zlib_msg}
+  brotli:           ${curl_brotli_msg}
+  zstd:             ${curl_zstd_msg}
+  GSS-API:          ${curl_gss_msg}
+  GSASL:            ${curl_gsasl_msg}
+  TLS-SRP:          ${curl_tls_srp_msg}
+  resolver:         ${curl_res_msg}
+  IPv6:             ${curl_ipv6_msg}
+  Unix sockets:     ${curl_unix_sockets_msg}
+  IDN:              ${curl_idn_msg}
+  Build libcurl:    Shared=${enable_shared}, Static=${enable_static}
+  Built-in manual:  ${curl_manual_msg}
+  --libcurl option: ${curl_libcurl_msg}
+  Verbose errors:   ${curl_verbose_msg}
+  Code coverage:    ${curl_coverage_msg}
+  SSPI:             ${curl_sspi_msg}
+  ca cert bundle:   ${ca}${ca_warning}
+  ca cert path:     ${capath}${capath_warning}
+  ca fallback:      ${with_ca_fallback}
+  LDAP:             ${curl_ldap_msg}
+  LDAPS:            ${curl_ldaps_msg}
+  RTSP:             ${curl_rtsp_msg}
+  RTMP:             ${curl_rtmp_msg}
+  PSL:              ${curl_psl_msg}
+  Alt-svc:          ${curl_altsvc_msg}
+  Headers API:      ${curl_headers_msg}
+  HSTS:             ${curl_hsts_msg}
+  HTTP1:            ${curl_h1_msg}
+  HTTP2:            ${curl_h2_msg}
+  HTTP3:            ${curl_h3_msg}
+  ECH:              ${curl_ech_msg}
+  Protocols:        ${SUPPORT_PROTOCOLS}
+  Features:         ${SUPPORT_FEATURES}
+" >&6;}
+if test -n "$experimental"; then
+ cat >&2 << _EOF
+  WARNING: $experimental enabled but marked EXPERIMENTAL. Use with caution!
+_EOF
+fi
+
diff --git a/curl/configure.ac b/curl/configure.ac
new file mode 100644
index 0000000..d24daea
--- /dev/null
+++ b/curl/configure.ac
@@ -0,0 +1,4459 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+#***************************************************************************
+dnl Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+
+dnl We don't know the version number "statically" so we use a dash here
+AC_INIT([curl], [-], [a suitable curl mailing list: https://curl.se/mail/])
+
+XC_OVR_ZZ50
+XC_OVR_ZZ60
+CURL_OVERRIDE_AUTOCONF
+
+dnl configure script copyright
+AC_COPYRIGHT([Copyright (c) 1998 - 2022 Daniel Stenberg, 
+This configure script may be copied, distributed and modified under the
+terms of the curl license; see COPYING for more details])
+
+AC_CONFIG_SRCDIR([lib/urldata.h])
+AC_CONFIG_HEADERS(lib/curl_config.h)
+AC_CONFIG_MACRO_DIR([m4])
+AM_MAINTAINER_MODE
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+CURL_CHECK_OPTION_DEBUG
+CURL_CHECK_OPTION_OPTIMIZE
+CURL_CHECK_OPTION_WARNINGS
+CURL_CHECK_OPTION_WERROR
+CURL_CHECK_OPTION_CURLDEBUG
+CURL_CHECK_OPTION_SYMBOL_HIDING
+CURL_CHECK_OPTION_ARES
+CURL_CHECK_OPTION_RT
+CURL_CHECK_OPTION_ECH
+
+XC_CHECK_PATH_SEPARATOR
+
+#
+# save the configure arguments
+#
+CONFIGURE_OPTIONS="\"$ac_configure_args\""
+AC_SUBST(CONFIGURE_OPTIONS)
+
+dnl SED is mandatory for configure process and libtool.
+dnl Set it now, allowing it to be changed later.
+if test -z "$SED"; then
+  dnl allow it to be overridden
+  AC_PATH_PROG([SED], [sed], [not_found],
+    [$PATH:/usr/bin:/usr/local/bin])
+  if test -z "$SED" || test "$SED" = "not_found"; then
+    AC_MSG_ERROR([sed not found in PATH. Cannot continue without sed.])
+  fi
+fi
+AC_SUBST([SED])
+
+dnl GREP is mandatory for configure process and libtool.
+dnl Set it now, allowing it to be changed later.
+if test -z "$GREP"; then
+  dnl allow it to be overridden
+  AC_PATH_PROG([GREP], [grep], [not_found],
+    [$PATH:/usr/bin:/usr/local/bin])
+  if test -z "$GREP" || test "$GREP" = "not_found"; then
+    AC_MSG_ERROR([grep not found in PATH. Cannot continue without grep.])
+  fi
+fi
+AC_SUBST([GREP])
+
+dnl EGREP is mandatory for configure process and libtool.
+dnl Set it now, allowing it to be changed later.
+if test -z "$EGREP"; then
+  dnl allow it to be overridden
+  if echo a | ($GREP -E '(a|b)') >/dev/null 2>&1; then
+    AC_MSG_CHECKING([for egrep])
+    EGREP="$GREP -E"
+    AC_MSG_RESULT([$EGREP])
+  else
+    AC_PATH_PROG([EGREP], [egrep], [not_found],
+      [$PATH:/usr/bin:/usr/local/bin])
+  fi
+fi
+if test -z "$EGREP" || test "$EGREP" = "not_found"; then
+  AC_MSG_ERROR([egrep not found in PATH. Cannot continue without egrep.])
+fi
+AC_SUBST([EGREP])
+
+dnl AR is mandatory for configure process and libtool.
+dnl This is target dependent, so check it as a tool.
+if test -z "$AR"; then
+  dnl allow it to be overridden
+  AC_PATH_TOOL([AR], [ar], [not_found],
+    [$PATH:/usr/bin:/usr/local/bin])
+  if test -z "$AR" || test "$AR" = "not_found"; then
+    AC_MSG_ERROR([ar not found in PATH. Cannot continue without ar.])
+  fi
+fi
+AC_SUBST([AR])
+
+AC_SUBST(libext)
+
+dnl figure out the libcurl version
+CURLVERSION=`$SED -ne 's/^#define LIBCURL_VERSION "\(.*\)".*/\1/p' ${srcdir}/include/curl/curlver.h`
+XC_CHECK_PROG_CC
+
+dnl for --enable-code-coverage
+CURL_COVERAGE
+
+XC_AUTOMAKE
+AC_MSG_CHECKING([curl version])
+AC_MSG_RESULT($CURLVERSION)
+
+AC_SUBST(CURLVERSION)
+
+dnl
+dnl we extract the numerical version for curl-config only
+VERSIONNUM=`$SED -ne 's/^#define LIBCURL_VERSION_NUM 0x\([0-9A-Fa-f]*\).*/\1/p' ${srcdir}/include/curl/curlver.h`
+AC_SUBST(VERSIONNUM)
+
+dnl Solaris pkgadd support definitions
+PKGADD_PKG="HAXXcurl"
+PKGADD_NAME="curl - a client that groks URLs"
+PKGADD_VENDOR="curl.se"
+AC_SUBST(PKGADD_PKG)
+AC_SUBST(PKGADD_NAME)
+AC_SUBST(PKGADD_VENDOR)
+
+dnl
+dnl initialize all the info variables
+    curl_ssl_msg="no      (--with-{openssl,gnutls,nss,mbedtls,wolfssl,schannel,secure-transport,amissl,bearssl,rustls} )"
+    curl_ssh_msg="no      (--with-{libssh,libssh2})"
+   curl_zlib_msg="no      (--with-zlib)"
+ curl_brotli_msg="no      (--with-brotli)"
+   curl_zstd_msg="no      (--with-zstd)"
+    curl_gss_msg="no      (--with-gssapi)"
+  curl_gsasl_msg="no      (--with-gsasl)"
+curl_tls_srp_msg="no      (--enable-tls-srp)"
+    curl_res_msg="default (--enable-ares / --enable-threaded-resolver)"
+   curl_ipv6_msg="no      (--enable-ipv6)"
+curl_unix_sockets_msg="no      (--enable-unix-sockets)"
+    curl_idn_msg="no      (--with-{libidn2,winidn})"
+ curl_manual_msg="no      (--enable-manual)"
+curl_libcurl_msg="enabled (--disable-libcurl-option)"
+curl_verbose_msg="enabled (--disable-verbose)"
+   curl_sspi_msg="no      (--enable-sspi)"
+   curl_ldap_msg="no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)"
+  curl_ldaps_msg="no      (--enable-ldaps)"
+   curl_rtsp_msg="no      (--enable-rtsp)"
+   curl_rtmp_msg="no      (--with-librtmp)"
+    curl_psl_msg="no      (--with-libpsl)"
+ curl_altsvc_msg="enabled (--disable-alt-svc)"
+ curl_headers_msg="no      (--enable-headers-api)"
+   curl_hsts_msg="enabled (--disable-hsts)"
+    ssl_backends=
+     curl_h1_msg="enabled (internal)"
+     curl_h2_msg="no      (--with-nghttp2, --with-hyper)"
+     curl_h3_msg="no      (--with-ngtcp2, --with-quiche --with-msh3)"
+
+enable_altsvc="yes"
+hsts="yes"
+
+dnl
+dnl Save some initial values the user might have provided
+dnl
+INITIAL_LDFLAGS=$LDFLAGS
+INITIAL_LIBS=$LIBS
+
+dnl **********************************************************************
+dnl See which TLS backend(s) that are requested. Just do all the
+dnl TLS AC_ARG_WITH() invokes here and do the checks later
+dnl **********************************************************************
+OPT_SCHANNEL=no
+AC_ARG_WITH(schannel,dnl
+AS_HELP_STRING([--with-schannel],[enable Windows native SSL/TLS]),
+  OPT_SCHANNEL=$withval
+  TLSCHOICE="schannel")
+
+OPT_SECURETRANSPORT=no
+AC_ARG_WITH(secure-transport,dnl
+AS_HELP_STRING([--with-secure-transport],[enable Apple OS native SSL/TLS]),
+  OPT_SECURETRANSPORT=$withval
+  test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }Secure-Transport"
+)
+
+OPT_AMISSL=no
+AC_ARG_WITH(amissl,dnl
+AS_HELP_STRING([--with-amissl],[enable Amiga native SSL/TLS (AmiSSL)]),
+  OPT_AMISSL=$withval
+  test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }AmiSSL")
+
+OPT_OPENSSL=no
+dnl Default to no CA bundle
+ca="no"
+AC_ARG_WITH(ssl,dnl
+AS_HELP_STRING([--with-ssl=PATH],[old version of --with-openssl])
+AS_HELP_STRING([--without-ssl], [build without any TLS library]),
+  OPT_SSL=$withval
+  OPT_OPENSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }OpenSSL")
+  fi
+
+AC_ARG_WITH(openssl,dnl
+AS_HELP_STRING([--with-openssl=PATH],[Where to look for OpenSSL, PATH points to the SSL installation (default: /usr/local/ssl); when possible, set the PKG_CONFIG_PATH environment variable instead of using this option]),
+  OPT_OPENSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }OpenSSL")
+  fi
+
+OPT_GNUTLS=no
+AC_ARG_WITH(gnutls,dnl
+AS_HELP_STRING([--with-gnutls=PATH],[where to look for GnuTLS, PATH points to the installation root]),
+  OPT_GNUTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }GnuTLS")
+  fi
+
+OPT_MBEDTLS=no
+AC_ARG_WITH(mbedtls,dnl
+AS_HELP_STRING([--with-mbedtls=PATH],[where to look for mbedTLS, PATH points to the installation root]),
+  OPT_MBEDTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }mbedTLS")
+  fi
+
+OPT_WOLFSSL=no
+AC_ARG_WITH(wolfssl,dnl
+AS_HELP_STRING([--with-wolfssl=PATH],[where to look for WolfSSL, PATH points to the installation root (default: system lib default)]),
+  OPT_WOLFSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }wolfSSL")
+  fi
+
+OPT_BEARSSL=no
+AC_ARG_WITH(bearssl,dnl
+AS_HELP_STRING([--with-bearssl=PATH],[where to look for BearSSL, PATH points to the installation root]),
+  OPT_BEARSSL=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }BearSSL")
+  fi
+
+OPT_RUSTLS=no
+AC_ARG_WITH(rustls,dnl
+AS_HELP_STRING([--with-rustls=PATH],[where to look for rustls, PATH points to the installation root]),
+  OPT_RUSTLS=$withval
+  if test X"$withval" != Xno; then
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }rustls")
+  fi
+
+OPT_NSS_AWARE=no
+AC_ARG_WITH(nss-deprecated,dnl
+AS_HELP_STRING([--with-nss-deprecated],[confirm you realize NSS is going away]),
+  if test X"$withval" != Xno; then
+    OPT_NSS_AWARE=$withval
+  fi
+)
+
+OPT_NSS=no
+AC_ARG_WITH(nss,dnl
+AS_HELP_STRING([--with-nss=PATH],[where to look for NSS, PATH points to the installation root]),
+  OPT_NSS=$withval
+  if test X"$withval" != Xno; then
+
+    if test X"$OPT_NSS_AWARE" = "Xno" ; then
+      AC_MSG_ERROR([NSS use must be confirmed using --with-nss-deprecated. NSS support will be dropped from curl in August 2022. See docs/DEPRECATE.md])
+    fi
+
+    test -z "TLSCHOICE" || TLSCHOICE="${TLSCHOICE:+$TLSCHOICE, }NSS"
+  fi
+)
+
+dnl If no TLS choice has been made, check if it was explicitly disabled or
+dnl error out to force the user to decide.
+if test -z "$TLSCHOICE"; then
+  if test "x$OPT_SSL" != "xno"; then
+    AC_MSG_ERROR([select TLS backend(s) or disable TLS with --without-ssl.
+
+Select from these:
+
+  --with-amissl
+  --with-bearssl
+  --with-gnutls
+  --with-mbedtls
+  --with-nss
+  --with-openssl (also works for BoringSSL and libressl)
+  --with-rustls
+  --with-schannel
+  --with-secure-transport
+  --with-wolfssl
+])
+  fi
+fi
+
+AC_ARG_WITH(darwinssl,,
+  AC_MSG_ERROR([--with-darwin-ssl no longer works!]))
+
+dnl
+dnl Detect the canonical host and target build environment
+dnl
+
+AC_CANONICAL_HOST
+dnl Get system canonical name
+AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-machine-OS])
+
+# Silence warning: ar: 'u' modifier ignored since 'D' is the default
+AC_SUBST(AR_FLAGS, [cr])
+
+dnl This defines _ALL_SOURCE for AIX
+CURL_CHECK_AIX_ALL_SOURCE
+
+dnl Our configure and build reentrant settings
+CURL_CONFIGURE_THREAD_SAFE
+CURL_CONFIGURE_REENTRANT
+
+dnl check for how to do large files
+AC_SYS_LARGEFILE
+
+XC_LIBTOOL
+
+#
+# Automake conditionals based on libtool related checks
+#
+
+AM_CONDITIONAL([CURL_LT_SHLIB_USE_VERSION_INFO],
+  [test "x$xc_lt_shlib_use_version_info" = 'xyes'])
+AM_CONDITIONAL([CURL_LT_SHLIB_USE_NO_UNDEFINED],
+  [test "x$xc_lt_shlib_use_no_undefined" = 'xyes'])
+AM_CONDITIONAL([CURL_LT_SHLIB_USE_MIMPURE_TEXT],
+  [test "x$xc_lt_shlib_use_mimpure_text" = 'xyes'])
+
+#
+# Due to libtool and automake machinery limitations of not allowing
+# specifying separate CPPFLAGS or CFLAGS when compiling objects for
+# inclusion of these in shared or static libraries, we are forced to
+# build using separate configure runs for shared and static libraries
+# on systems where different CPPFLAGS or CFLAGS are mandatory in order
+# to compile objects for each kind of library. Notice that relying on
+# the '-DPIC' CFLAG that libtool provides is not valid given that the
+# user might for example choose to build static libraries with PIC.
+#
+
+#
+# Make our Makefile.am files use the staticlib CPPFLAG only when strictly
+# targeting a static library and not building its shared counterpart.
+#
+
+AM_CONDITIONAL([USE_CPPFLAG_CURL_STATICLIB],
+  [test "x$xc_lt_build_static_only" = 'xyes'])
+
+#
+# Make staticlib CPPFLAG variable and its definition visible in output
+# files unconditionally, providing an empty definition unless strictly
+# targeting a static library and not building its shared counterpart.
+#
+
+CPPFLAG_CURL_STATICLIB=
+if test "x$xc_lt_build_static_only" = 'xyes'; then
+  CPPFLAG_CURL_STATICLIB='-DCURL_STATICLIB'
+fi
+AC_SUBST([CPPFLAG_CURL_STATICLIB])
+
+
+# Determine whether all dependent libraries must be specified when linking
+if test "X$enable_shared" = "Xyes" -a "X$link_all_deplibs" = "Xno"
+then
+    REQUIRE_LIB_DEPS=no
+else
+    REQUIRE_LIB_DEPS=yes
+fi
+AC_SUBST(REQUIRE_LIB_DEPS)
+AM_CONDITIONAL(USE_EXPLICIT_LIB_DEPS, test x$REQUIRE_LIB_DEPS = xyes)
+
+dnl check if there's a way to force code inline
+AC_C_INLINE
+
+dnl **********************************************************************
+dnl platform/compiler/architecture specific checks/flags
+dnl **********************************************************************
+
+CURL_CHECK_COMPILER
+CURL_SET_COMPILER_BASIC_OPTS
+CURL_SET_COMPILER_DEBUG_OPTS
+CURL_SET_COMPILER_OPTIMIZE_OPTS
+CURL_SET_COMPILER_WARNING_OPTS
+
+if test "$compiler_id" = "INTEL_UNIX_C"; then
+  #
+  if test "$compiler_num" -ge "1000"; then
+    dnl icc 10.X or later
+    CFLAGS="$CFLAGS -shared-intel"
+  elif test "$compiler_num" -ge "900"; then
+    dnl icc 9.X specific
+    CFLAGS="$CFLAGS -i-dynamic"
+  fi
+  #
+fi
+
+CURL_CFLAG_EXTRAS=""
+if test X"$want_werror" = Xyes; then
+  CURL_CFLAG_EXTRAS="-Werror"
+  if test "$compiler_id" = "GNU_C"; then
+    dnl enable -pedantic-errors for GCC 5 and later,
+    dnl as before that it was the same as -Werror=pedantic
+    if test "$compiler_num" -ge "500"; then
+      CURL_CFLAG_EXTRAS="$CURL_CFLAG_EXTRAS -pedantic-errors"
+    fi
+  fi
+fi
+AC_SUBST(CURL_CFLAG_EXTRAS)
+
+CURL_CHECK_COMPILER_HALT_ON_ERROR
+CURL_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
+CURL_CHECK_COMPILER_PROTOTYPE_MISMATCH
+CURL_CHECK_COMPILER_SYMBOL_HIDING
+
+CURL_CHECK_CURLDEBUG
+AM_CONDITIONAL(CURLDEBUG, test x$want_curldebug = xyes)
+
+supports_unittests=yes
+# cross-compilation of unit tests static library/programs fails when
+# libcurl shared library is built. This might be due to a libtool or
+# automake issue. In this case we disable unit tests.
+if test "x$cross_compiling" != "xno" &&
+   test "x$enable_shared" != "xno"; then
+  supports_unittests=no
+fi
+
+# IRIX 6.5.24 gcc 3.3 autobuilds fail unittests library compilation due to
+# a problem related with OpenSSL headers and library versions not matching.
+# Disable unit tests while time to further investigate this is found.
+case $host in
+  mips-sgi-irix6.5)
+    if test "$compiler_id" = "GNU_C"; then
+      supports_unittests=no
+    fi
+    ;;
+esac
+
+# All AIX autobuilds fails unit tests linking against unittests library
+# due to unittests library being built with no symbols or members. Libtool ?
+# Disable unit tests while time to further investigate this is found.
+case $host_os in
+  aix*)
+    supports_unittests=no
+    ;;
+esac
+
+dnl Build unit tests when option --enable-debug is given.
+if test "x$want_debug" = "xyes" &&
+   test "x$supports_unittests" = "xyes"; then
+  want_unittests=yes
+else
+  want_unittests=no
+fi
+AM_CONDITIONAL(BUILD_UNITTESTS, test x$want_unittests = xyes)
+
+# For original MinGW (ie not MinGW-w64) define the Windows minimum supported OS
+# version to Windows XP (0x501) if it hasn't already been defined by the user.
+# Without this override original MinGW defaults the version to Windows NT 4.0.
+# Note original MinGW sets _WIN32_WINNT if not defined to whatever WINVER is.
+case $host in
+  *-*-mingw32*)
+    AC_MSG_CHECKING([if MinGW minimum supported OS should be set to XP])
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM([[
+#include <_mingw.h>
+      ]],[[
+#if defined(__MINGW64_VERSION_MAJOR) || \
+    defined(WINVER) || \
+    defined(_WIN32_WINNT)
+#error
+#endif
+      ]])
+    ],[
+      CPPFLAGS="$CPPFLAGS -DWINVER=0x501"
+      AC_MSG_RESULT([yes])
+    ],[
+      AC_MSG_RESULT([no])
+    ])
+    ;;
+esac
+
+dnl **********************************************************************
+dnl Compilation based checks should not be done before this point.
+dnl **********************************************************************
+
+dnl **********************************************************************
+dnl Make sure that our checks for headers windows.h winsock2.h
+dnl and ws2tcpip.h take precedence over any other further checks which
+dnl could be done later using AC_CHECK_HEADER or AC_CHECK_HEADERS for
+dnl this specific header files. And do them before its results are used.
+dnl **********************************************************************
+
+CURL_CHECK_HEADER_WINDOWS
+CURL_CHECK_NATIVE_WINDOWS
+case X-"$curl_cv_native_windows" in
+  X-yes)
+    CURL_CHECK_HEADER_WINSOCK2
+    CURL_CHECK_HEADER_WS2TCPIP
+    CURL_CHECK_HEADER_WINCRYPT
+    CURL_CHECK_HEADER_WINLDAP
+    CURL_CHECK_HEADER_WINBER
+    ;;
+  *)
+    curl_cv_header_winsock2_h="no"
+    curl_cv_header_ws2tcpip_h="no"
+    curl_cv_header_wincrypt_h="no"
+    curl_cv_header_winldap_h="no"
+    curl_cv_header_winber_h="no"
+    ;;
+esac
+CURL_CHECK_WIN32_LARGEFILE
+CURL_CHECK_WIN32_CRYPTO
+
+CURL_DARWIN_CFLAGS
+CURL_DARWIN_SYSTEMCONFIGURATION
+CURL_SUPPORTS_BUILTIN_AVAILABLE
+
+
+dnl ************************************************************
+dnl switch off particular protocols
+dnl
+AC_MSG_CHECKING([whether to support http])
+AC_ARG_ENABLE(http,
+AS_HELP_STRING([--enable-http],[Enable HTTP support])
+AS_HELP_STRING([--disable-http],[Disable HTTP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_HTTP, 1, [to disable HTTP])
+       disable_http="yes"
+       AC_MSG_WARN([disable HTTP disables FTP over proxy and RTSP])
+       AC_SUBST(CURL_DISABLE_HTTP, [1])
+       AC_DEFINE(CURL_DISABLE_RTSP, 1, [to disable RTSP])
+       AC_SUBST(CURL_DISABLE_RTSP, [1])
+       dnl toggle off alt-svc too when HTTP is disabled
+       AC_DEFINE(CURL_DISABLE_ALTSVC, 1, [disable alt-svc])
+       AC_DEFINE(CURL_DISABLE_HSTS, 1, [disable HSTS])
+       curl_h1_msg="no      (--enable-http, --with-hyper)"
+       curl_altsvc_msg="no";
+       curl_hsts_msg="no      (--enable-hsts)";
+       enable_altsvc="no"
+       hsts="no"
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+AC_MSG_CHECKING([whether to support ftp])
+AC_ARG_ENABLE(ftp,
+AS_HELP_STRING([--enable-ftp],[Enable FTP support])
+AS_HELP_STRING([--disable-ftp],[Disable FTP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_FTP, 1, [to disable FTP])
+       AC_SUBST(CURL_DISABLE_FTP, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+AC_MSG_CHECKING([whether to support file])
+AC_ARG_ENABLE(file,
+AS_HELP_STRING([--enable-file],[Enable FILE support])
+AS_HELP_STRING([--disable-file],[Disable FILE support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_FILE, 1, [to disable FILE])
+       AC_SUBST(CURL_DISABLE_FILE, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+AC_MSG_CHECKING([whether to support ldap])
+AC_ARG_ENABLE(ldap,
+AS_HELP_STRING([--enable-ldap],[Enable LDAP support])
+AS_HELP_STRING([--disable-ldap],[Disable LDAP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
+       AC_SUBST(CURL_DISABLE_LDAP, [1])
+       ;;
+  yes)
+       ldap_askedfor="yes"
+       AC_MSG_RESULT(yes)
+       ;;
+  *)
+       AC_MSG_RESULT(yes)
+       ;;
+  esac ],[
+       AC_MSG_RESULT(yes) ]
+)
+AC_MSG_CHECKING([whether to support ldaps])
+AC_ARG_ENABLE(ldaps,
+AS_HELP_STRING([--enable-ldaps],[Enable LDAPS support])
+AS_HELP_STRING([--disable-ldaps],[Disable LDAPS support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+       AC_SUBST(CURL_DISABLE_LDAPS, [1])
+       ;;
+  *)   if test "x$CURL_DISABLE_LDAP" = "x1" ; then
+         AC_MSG_RESULT(LDAP needs to be enabled to support LDAPS)
+         AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+         AC_SUBST(CURL_DISABLE_LDAPS, [1])
+       else
+         AC_MSG_RESULT(yes)
+         AC_DEFINE(HAVE_LDAP_SSL, 1, [Use LDAPS implementation])
+         AC_SUBST(HAVE_LDAP_SSL, [1])
+       fi
+       ;;
+  esac ],[
+       if test "x$CURL_DISABLE_LDAP" = "x1" ; then
+         AC_MSG_RESULT(no)
+         AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+         AC_SUBST(CURL_DISABLE_LDAPS, [1])
+       else
+         AC_MSG_RESULT(yes)
+         AC_DEFINE(HAVE_LDAP_SSL, 1, [Use LDAPS implementation])
+         AC_SUBST(HAVE_LDAP_SSL, [1])
+       fi ]
+)
+
+dnl **********************************************************************
+dnl Check for Hyper
+dnl **********************************************************************
+
+OPT_HYPER="no"
+
+AC_ARG_WITH(hyper,
+AS_HELP_STRING([--with-hyper=PATH],[Enable hyper usage])
+AS_HELP_STRING([--without-hyper],[Disable hyper usage]),
+  [OPT_HYPER=$withval])
+case "$OPT_HYPER" in
+  no)
+    dnl --without-hyper option used
+    want_hyper="no"
+    ;;
+  yes)
+    dnl --with-hyper option used without path
+    want_hyper="default"
+    want_hyper_path=""
+    ;;
+  *)
+    dnl --with-hyper option used with path
+    want_hyper="yes"
+    want_hyper_path="$withval"
+    ;;
+esac
+
+if test X"$want_hyper" != Xno; then
+  if test "x$disable_http" = "xyes"; then
+    AC_MSG_ERROR([--with-hyper is not compatible with --disable-http])
+  fi
+
+  dnl backup the pre-hyper variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(hyper, $want_hyper_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_HYPER=`CURL_EXPORT_PCDIR([$want_hyper_path])
+      $PKGCONFIG --libs-only-l hyper`
+    CPP_HYPER=`CURL_EXPORT_PCDIR([$want_hyper_path]) dnl
+      $PKGCONFIG --cflags-only-I hyper`
+    LD_HYPER=`CURL_EXPORT_PCDIR([$want_hyper_path])
+      $PKGCONFIG --libs-only-L hyper`
+  else
+    dnl no hyper pkg-config found
+    LIB_HYPER="-lhyper -ldl -lpthread -lm"
+    if test X"$want_hyper" != Xdefault; then
+      CPP_HYPER=-I"$want_hyper_path/capi/include"
+      LD_HYPER="-L$want_hyper_path/target/release -L$want_hyper_path/target/debug"
+    fi
+  fi
+  if test -n "$LIB_HYPER"; then
+    AC_MSG_NOTICE([-l is $LIB_HYPER])
+    AC_MSG_NOTICE([-I is $CPP_HYPER])
+    AC_MSG_NOTICE([-L is $LD_HYPER])
+
+    LDFLAGS="$LDFLAGS $LD_HYPER"
+    CPPFLAGS="$CPPFLAGS $CPP_HYPER"
+    LIBS="$LIB_HYPER $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      dnl remove -L, separate with colon if more than one
+      DIR_HYPER=`echo $LD_HYPER | $SED -e 's/^-L//' -e 's/ -L/:/g'`
+    fi
+
+    AC_CHECK_LIB(hyper, hyper_io_new,
+      [
+       AC_CHECK_HEADERS(hyper.h,
+          experimental="$experimental Hyper"
+          AC_MSG_NOTICE([Hyper support is experimental])
+          curl_h1_msg="enabled (Hyper)"
+          curl_h2_msg=$curl_h1_msg
+          HYPER_ENABLED=1
+          AC_DEFINE(USE_HYPER, 1, [if hyper is in use])
+          AC_SUBST(USE_HYPER, [1])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_HYPER"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_HYPER to CURL_LIBRARY_PATH]),
+       )
+      ],
+      for d in `echo $DIR_HYPER | sed -e 's/:/ /'`; do
+        if test -f "$d/libhyper.a"; then
+          AC_MSG_ERROR([hyper was found in $d but was probably built with wrong flags. See docs/HYPER.md.])
+        fi
+      done
+      AC_MSG_ERROR([--with-hyper but hyper was not found. See docs/HYPER.md.])
+    )
+  fi
+fi
+
+if test X"$want_hyper" != Xno; then
+  AC_MSG_NOTICE([Disable RTSP support with hyper])
+  AC_DEFINE(CURL_DISABLE_RTSP, 1, [to disable RTSP])
+  AC_SUBST(CURL_DISABLE_RTSP, [1])
+
+else
+
+  AC_MSG_CHECKING([whether to support rtsp])
+  AC_ARG_ENABLE(rtsp,
+  AS_HELP_STRING([--enable-rtsp],[Enable RTSP support])
+  AS_HELP_STRING([--disable-rtsp],[Disable RTSP support]),
+  [ case "$enableval" in
+    no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_RTSP, 1, [to disable RTSP])
+       AC_SUBST(CURL_DISABLE_RTSP, [1])
+       ;;
+    *)
+       if test x$CURL_DISABLE_HTTP = x1 ; then
+         AC_MSG_ERROR(HTTP support needs to be enabled in order to enable RTSP support!)
+       else
+         AC_MSG_RESULT(yes)
+         curl_rtsp_msg="enabled"
+       fi
+       ;;
+    esac ],
+       if test "x$CURL_DISABLE_HTTP" != "x1"; then
+          AC_MSG_RESULT(yes)
+          curl_rtsp_msg="enabled"
+       else
+          AC_MSG_RESULT(no)
+       fi
+  )
+fi
+
+AC_MSG_CHECKING([whether to support proxies])
+AC_ARG_ENABLE(proxy,
+AS_HELP_STRING([--enable-proxy],[Enable proxy support])
+AS_HELP_STRING([--disable-proxy],[Disable proxy support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_PROXY, 1, [to disable proxies])
+       AC_SUBST(CURL_DISABLE_PROXY, [1])
+       https_proxy="no"
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+AC_MSG_CHECKING([whether to support dict])
+AC_ARG_ENABLE(dict,
+AS_HELP_STRING([--enable-dict],[Enable DICT support])
+AS_HELP_STRING([--disable-dict],[Disable DICT support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_DICT, 1, [to disable DICT])
+       AC_SUBST(CURL_DISABLE_DICT, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+AC_MSG_CHECKING([whether to support telnet])
+AC_ARG_ENABLE(telnet,
+AS_HELP_STRING([--enable-telnet],[Enable TELNET support])
+AS_HELP_STRING([--disable-telnet],[Disable TELNET support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_TELNET, 1, [to disable TELNET])
+       AC_SUBST(CURL_DISABLE_TELNET, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+AC_MSG_CHECKING([whether to support tftp])
+AC_ARG_ENABLE(tftp,
+AS_HELP_STRING([--enable-tftp],[Enable TFTP support])
+AS_HELP_STRING([--disable-tftp],[Disable TFTP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_TFTP, 1, [to disable TFTP])
+       AC_SUBST(CURL_DISABLE_TFTP, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+AC_MSG_CHECKING([whether to support pop3])
+AC_ARG_ENABLE(pop3,
+AS_HELP_STRING([--enable-pop3],[Enable POP3 support])
+AS_HELP_STRING([--disable-pop3],[Disable POP3 support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_POP3, 1, [to disable POP3])
+       AC_SUBST(CURL_DISABLE_POP3, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+
+AC_MSG_CHECKING([whether to support imap])
+AC_ARG_ENABLE(imap,
+AS_HELP_STRING([--enable-imap],[Enable IMAP support])
+AS_HELP_STRING([--disable-imap],[Disable IMAP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_IMAP, 1, [to disable IMAP])
+       AC_SUBST(CURL_DISABLE_IMAP, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+
+AC_MSG_CHECKING([whether to support smb])
+AC_ARG_ENABLE(smb,
+AS_HELP_STRING([--enable-smb],[Enable SMB/CIFS support])
+AS_HELP_STRING([--disable-smb],[Disable SMB/CIFS support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_SMB, 1, [to disable SMB/CIFS])
+       AC_SUBST(CURL_DISABLE_SMB, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+AC_MSG_CHECKING([whether to support smtp])
+AC_ARG_ENABLE(smtp,
+AS_HELP_STRING([--enable-smtp],[Enable SMTP support])
+AS_HELP_STRING([--disable-smtp],[Disable SMTP support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_SMTP, 1, [to disable SMTP])
+       AC_SUBST(CURL_DISABLE_SMTP, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+AC_MSG_CHECKING([whether to support gopher])
+AC_ARG_ENABLE(gopher,
+AS_HELP_STRING([--enable-gopher],[Enable Gopher support])
+AS_HELP_STRING([--disable-gopher],[Disable Gopher support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_GOPHER, 1, [to disable Gopher])
+       AC_SUBST(CURL_DISABLE_GOPHER, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+AC_MSG_CHECKING([whether to support mqtt])
+AC_ARG_ENABLE(mqtt,
+AS_HELP_STRING([--enable-mqtt],[Enable MQTT support])
+AS_HELP_STRING([--disable-mqtt],[Disable MQTT support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_MQTT, 1, [to disable MQTT])
+       AC_SUBST(CURL_DISABLE_MQTT, [1])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(no)
+)
+
+dnl **********************************************************************
+dnl Check for built-in manual
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to provide built-in manual])
+AC_ARG_ENABLE(manual,
+AS_HELP_STRING([--enable-manual],[Enable built-in manual])
+AS_HELP_STRING([--disable-manual],[Disable built-in manual]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       USE_MANUAL="1"
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+       USE_MANUAL="1"
+)
+dnl The actual use of the USE_MANUAL variable is done much later in this
+dnl script to allow other actions to disable it as well.
+
+dnl ************************************************************
+dnl disable C code generation support
+dnl
+AC_MSG_CHECKING([whether to enable generation of C code])
+AC_ARG_ENABLE(libcurl_option,
+AS_HELP_STRING([--enable-libcurl-option],[Enable --libcurl C code generation support])
+AS_HELP_STRING([--disable-libcurl-option],[Disable --libcurl C code generation support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_LIBCURL_OPTION, 1, [to disable --libcurl C code generation option])
+       curl_libcurl_msg="no"
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl **********************************************************************
+dnl Checks for libraries.
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to use libgcc])
+AC_ARG_ENABLE(libgcc,
+AS_HELP_STRING([--enable-libgcc],[use libgcc when linking]),
+[ case "$enableval" in
+  yes)
+       LIBS="-lgcc $LIBS"
+       AC_MSG_RESULT(yes)
+       ;;
+  *)   AC_MSG_RESULT(no)
+       ;;
+  esac ],
+       AC_MSG_RESULT(no)
+)
+
+CURL_CHECK_LIB_XNET
+
+dnl gethostbyname without lib or in the nsl lib?
+AC_CHECK_FUNC(gethostbyname,
+              [HAVE_GETHOSTBYNAME="1"
+              ],
+              [ AC_CHECK_LIB(nsl, gethostbyname,
+                             [HAVE_GETHOSTBYNAME="1"
+                             LIBS="-lnsl $LIBS"
+                             ])
+              ])
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl gethostbyname in the socket lib?
+  AC_CHECK_LIB(socket, gethostbyname,
+               [HAVE_GETHOSTBYNAME="1"
+               LIBS="-lsocket $LIBS"
+               ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl gethostbyname in the watt lib?
+  AC_CHECK_LIB(watt, gethostbyname,
+               [HAVE_GETHOSTBYNAME="1"
+               CPPFLAGS="-I/dev/env/WATT_ROOT/inc"
+               LDFLAGS="-L/dev/env/WATT_ROOT/lib"
+               LIBS="-lwatt $LIBS"
+               ])
+fi
+
+dnl At least one system has been identified to require BOTH nsl and socket
+dnl libs at the same time to link properly.
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs])
+  my_ac_save_LIBS=$LIBS
+  LIBS="-lnsl -lsocket $LIBS"
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+    ]],[[
+      gethostbyname();
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    HAVE_GETHOSTBYNAME="1"
+  ],[
+    AC_MSG_RESULT([no])
+    LIBS=$my_ac_save_LIBS
+  ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl This is for winsock systems
+  if test "$curl_cv_header_windows_h" = "yes"; then
+    if test "$curl_cv_header_winsock2_h" = "yes"; then
+      winsock_LIB="-lws2_32"
+    fi
+    if test ! -z "$winsock_LIB"; then
+      my_ac_save_LIBS=$LIBS
+      LIBS="$winsock_LIB $LIBS"
+      AC_MSG_CHECKING([for gethostbyname in $winsock_LIB])
+      AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([[
+#ifdef HAVE_WINDOWS_H
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#endif
+#endif
+        ]],[[
+          gethostbyname("www.dummysite.com");
+        ]])
+      ],[
+        AC_MSG_RESULT([yes])
+        HAVE_GETHOSTBYNAME="1"
+      ],[
+        AC_MSG_RESULT([no])
+        winsock_LIB=""
+        LIBS=$my_ac_save_LIBS
+      ])
+    fi
+  fi
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl This is for Minix 3.1
+  AC_MSG_CHECKING([for gethostbyname for Minix 3])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+/* Older Minix versions may need  here instead */
+#include 
+    ]],[[
+      gethostbyname("www.dummysite.com");
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    HAVE_GETHOSTBYNAME="1"
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl This is for eCos with a stubbed DNS implementation
+  AC_MSG_CHECKING([for gethostbyname for eCos])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+#include 
+#include 
+    ]],[[
+      gethostbyname("www.dummysite.com");
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    HAVE_GETHOSTBYNAME="1"
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1" -o "${with_amissl+set}" = set
+then
+  dnl This is for AmigaOS with bsdsocket.library - needs testing before -lnet
+  AC_MSG_CHECKING([for gethostbyname for AmigaOS bsdsocket.library])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+  #include 
+  struct Library *SocketBase = NULL;
+    ]],[[
+      gethostbyname("www.dummysite.com");
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    HAVE_GETHOSTBYNAME="1"
+    HAVE_PROTO_BSDSOCKET_H="1"
+    AC_DEFINE(HAVE_PROTO_BSDSOCKET_H, 1, [if Amiga bsdsocket.library is in use])
+    AC_SUBST(HAVE_PROTO_BSDSOCKET_H, [1])
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"
+then
+  dnl gethostbyname in the network lib - for Haiku OS
+  AC_CHECK_LIB(network, gethostbyname,
+               [HAVE_GETHOSTBYNAME="1"
+               LIBS="-lnetwork $LIBS"
+               ])
+fi
+
+if test "$HAVE_GETHOSTBYNAME" != "1"; then
+  AC_MSG_ERROR([couldn't find libraries for gethostbyname()])
+fi
+
+CURL_CHECK_LIBS_CONNECT
+
+CURL_NETWORK_LIBS=$LIBS
+
+dnl **********************************************************************
+dnl In case that function clock_gettime with monotonic timer is available,
+dnl check for additional required libraries.
+dnl **********************************************************************
+CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC
+
+dnl **********************************************************************
+dnl The preceding library checks are all potentially useful for test
+dnl servers and libtest cases which require networking and clock_gettime
+dnl support.  Save the list of required libraries at this point for use
+dnl while linking those test servers and programs.
+dnl **********************************************************************
+CURL_NETWORK_AND_TIME_LIBS=$LIBS
+
+dnl **********************************************************************
+dnl Check for the presence of ZLIB libraries and headers
+dnl **********************************************************************
+
+dnl Check for & handle argument to --with-zlib.
+
+clean_CPPFLAGS=$CPPFLAGS
+clean_LDFLAGS=$LDFLAGS
+clean_LIBS=$LIBS
+ZLIB_LIBS=""
+AC_ARG_WITH(zlib,
+AS_HELP_STRING([--with-zlib=PATH],[search for zlib in PATH])
+AS_HELP_STRING([--without-zlib],[disable use of zlib]),
+               [OPT_ZLIB="$withval"])
+
+if test "$OPT_ZLIB" = "no" ; then
+    AC_MSG_WARN([zlib disabled])
+else
+  if test "$OPT_ZLIB" = "yes" ; then
+    OPT_ZLIB=""
+  fi
+
+  if test -z "$OPT_ZLIB" ; then
+    CURL_CHECK_PKGCONFIG(zlib)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIBS="`$PKGCONFIG --libs-only-l zlib` $LIBS"
+      LDFLAGS="$LDFLAGS `$PKGCONFIG --libs-only-L zlib`"
+      CPPFLAGS="$CPPFLAGS `$PKGCONFIG --cflags-only-I zlib`"
+      OPT_ZLIB=""
+      HAVE_LIBZ="1"
+    fi
+
+    if test -z "$HAVE_LIBZ"; then
+
+      dnl Check for the lib without setting any new path, since many
+      dnl people have it in the default path
+
+      AC_CHECK_LIB(z, inflateEnd,
+                   dnl libz found, set the variable
+                   [HAVE_LIBZ="1"
+                    LIBS="-lz $LIBS"],
+                   dnl if no lib found, try /usr/local
+                   [OPT_ZLIB="/usr/local"])
+    fi
+  fi
+
+  dnl Add a nonempty path to the compiler flags
+  if test -n "$OPT_ZLIB"; then
+     CPPFLAGS="$CPPFLAGS -I$OPT_ZLIB/include"
+     LDFLAGS="$LDFLAGS -L$OPT_ZLIB/lib$libsuff"
+  fi
+
+  AC_CHECK_HEADER(zlib.h,
+    [
+    dnl zlib.h was found
+    HAVE_ZLIB_H="1"
+    dnl if the lib wasn't found already, try again with the new paths
+    if test "$HAVE_LIBZ" != "1"; then
+      AC_CHECK_LIB(z, gzread,
+                   [
+                   dnl the lib was found!
+                   HAVE_LIBZ="1"
+                   LIBS="-lz $LIBS"
+                   ],
+                   [ CPPFLAGS=$clean_CPPFLAGS
+                   LDFLAGS=$clean_LDFLAGS])
+    fi
+    ],
+    [
+      dnl zlib.h was not found, restore the flags
+      CPPFLAGS=$clean_CPPFLAGS
+      LDFLAGS=$clean_LDFLAGS]
+    )
+
+  if test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" != "1"
+  then
+    AC_MSG_WARN([configure found only the libz lib, not the header file!])
+    HAVE_LIBZ=""
+    CPPFLAGS=$clean_CPPFLAGS
+    LDFLAGS=$clean_LDFLAGS
+    LIBS=$clean_LIBS
+  elif test "$HAVE_LIBZ" != "1" && test "$HAVE_ZLIB_H" = "1"
+  then
+    AC_MSG_WARN([configure found only the libz header file, not the lib!])
+    CPPFLAGS=$clean_CPPFLAGS
+    LDFLAGS=$clean_LDFLAGS
+    LIBS=$clean_LIBS
+  elif test "$HAVE_LIBZ" = "1" && test "$HAVE_ZLIB_H" = "1"
+  then
+    dnl both header and lib were found!
+    AC_SUBST(HAVE_LIBZ)
+    AC_DEFINE(HAVE_ZLIB_H, 1, [if you have the zlib.h header file])
+    AC_DEFINE(HAVE_LIBZ, 1, [if zlib is available])
+
+    ZLIB_LIBS="-lz"
+    LIBS="-lz $clean_LIBS"
+
+    dnl replace 'HAVE_LIBZ' in the automake makefile.ams
+    AMFIXLIB="1"
+    AC_MSG_NOTICE([found both libz and libz.h header])
+    curl_zlib_msg="enabled"
+  fi
+fi
+
+dnl set variable for use in automakefile(s)
+AM_CONDITIONAL(HAVE_LIBZ, test x"$AMFIXLIB" = x1)
+AC_SUBST(ZLIB_LIBS)
+
+dnl **********************************************************************
+dnl Check for the presence of BROTLI decoder libraries and headers
+dnl **********************************************************************
+
+dnl Brotli project home page: https://github.com/google/brotli
+
+dnl Default to compiler & linker defaults for BROTLI files & libraries.
+OPT_BROTLI=off
+AC_ARG_WITH(brotli,dnl
+AS_HELP_STRING([--with-brotli=PATH],[Where to look for brotli, PATH points to the BROTLI installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--without-brotli], [disable BROTLI]),
+  OPT_BROTLI=$withval)
+
+if test X"$OPT_BROTLI" != Xno; then
+  dnl backup the pre-brotli variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_BROTLI" in
+  yes)
+    dnl --with-brotli (without path) used
+    CURL_CHECK_PKGCONFIG(libbrotlidec)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_BROTLI=`$PKGCONFIG --libs-only-l libbrotlidec`
+      LD_BROTLI=`$PKGCONFIG --libs-only-L libbrotlidec`
+      CPP_BROTLI=`$PKGCONFIG --cflags-only-I libbrotlidec`
+      version=`$PKGCONFIG --modversion libbrotlidec`
+      DIR_BROTLI=`echo $LD_BROTLI | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+    dnl no --with-brotli option given, just check default places
+    ;;
+  *)
+    dnl use the given --with-brotli spot
+    PREFIX_BROTLI=$OPT_BROTLI
+    ;;
+  esac
+
+  dnl if given with a prefix, we set -L and -I based on that
+  if test -n "$PREFIX_BROTLI"; then
+    LIB_BROTLI="-lbrotlidec"
+    LD_BROTLI=-L${PREFIX_BROTLI}/lib$libsuff
+    CPP_BROTLI=-I${PREFIX_BROTLI}/include
+    DIR_BROTLI=${PREFIX_BROTLI}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_BROTLI"
+  CPPFLAGS="$CPPFLAGS $CPP_BROTLI"
+  LIBS="$LIB_BROTLI $LIBS"
+
+  AC_CHECK_LIB(brotlidec, BrotliDecoderDecompress)
+
+  AC_CHECK_HEADERS(brotli/decode.h,
+    curl_brotli_msg="enabled (libbrotlidec)"
+    HAVE_BROTLI=1
+    AC_DEFINE(HAVE_BROTLI, 1, [if BROTLI is in use])
+    AC_SUBST(HAVE_BROTLI, [1])
+  )
+
+  if test X"$OPT_BROTLI" != Xoff &&
+     test "$HAVE_BROTLI" != "1"; then
+    AC_MSG_ERROR([BROTLI libs and/or directories were not found where specified!])
+  fi
+
+  if test "$HAVE_BROTLI" = "1"; then
+    if test -n "$DIR_BROTLI"; then
+       dnl when the brotli shared libs were found in a path that the run-time
+       dnl linker doesn't search through, we need to add it to CURL_LIBRARY_PATH
+       dnl to prevent further configure tests to fail due to this
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_BROTLI"
+         export CURL_LIBRARY_PATH
+         AC_MSG_NOTICE([Added $DIR_BROTLI to CURL_LIBRARY_PATH])
+       fi
+    fi
+  else
+    dnl no brotli, revert back to clean variables
+    LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for libzstd
+dnl **********************************************************************
+
+dnl Default to compiler & linker defaults for libzstd
+OPT_ZSTD=off
+AC_ARG_WITH(zstd,dnl
+AS_HELP_STRING([--with-zstd=PATH],[Where to look for libzstd, PATH points to the libzstd installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--without-zstd], [disable libzstd]),
+  OPT_ZSTD=$withval)
+
+if test X"$OPT_ZSTD" != Xno; then
+  dnl backup the pre-zstd variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_ZSTD" in
+  yes)
+    dnl --with-zstd (without path) used
+    CURL_CHECK_PKGCONFIG(libzstd)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_ZSTD=`$PKGCONFIG --libs-only-l libzstd`
+      LD_ZSTD=`$PKGCONFIG --libs-only-L libzstd`
+      CPP_ZSTD=`$PKGCONFIG --cflags-only-I libzstd`
+      version=`$PKGCONFIG --modversion libzstd`
+      DIR_ZSTD=`echo $LD_ZSTD | $SED -e 's/-L//'`
+    fi
+
+    ;;
+  off)
+    dnl no --with-zstd option given, just check default places
+    ;;
+  *)
+    dnl use the given --with-zstd spot
+    PREFIX_ZSTD=$OPT_ZSTD
+    ;;
+  esac
+
+  dnl if given with a prefix, we set -L and -I based on that
+  if test -n "$PREFIX_ZSTD"; then
+    LIB_ZSTD="-lzstd"
+    LD_ZSTD=-L${PREFIX_ZSTD}/lib$libsuff
+    CPP_ZSTD=-I${PREFIX_ZSTD}/include
+    DIR_ZSTD=${PREFIX_ZSTD}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_ZSTD"
+  CPPFLAGS="$CPPFLAGS $CPP_ZSTD"
+  LIBS="$LIB_ZSTD $LIBS"
+
+  AC_CHECK_LIB(zstd, ZSTD_createDStream)
+
+  AC_CHECK_HEADERS(zstd.h,
+    curl_zstd_msg="enabled (libzstd)"
+    HAVE_ZSTD=1
+    AC_DEFINE(HAVE_ZSTD, 1, [if libzstd is in use])
+    AC_SUBST(HAVE_ZSTD, [1])
+  )
+
+  if test X"$OPT_ZSTD" != Xoff &&
+     test "$HAVE_ZSTD" != "1"; then
+    AC_MSG_ERROR([libzstd was not found where specified!])
+  fi
+
+  if test "$HAVE_ZSTD" = "1"; then
+    if test -n "$DIR_ZSTD"; then
+       dnl when the zstd shared lib were found in a path that the run-time
+       dnl linker doesn't search through, we need to add it to
+       dnl CURL_LIBRARY_PATH to prevent further configure tests to fail due to
+       dnl this
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_ZSTD"
+         export CURL_LIBRARY_PATH
+         AC_MSG_NOTICE([Added $DIR_ZSTD to CURL_LIBRARY_PATH])
+       fi
+    fi
+  else
+    dnl no zstd, revert back to clean variables
+    LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for LDAP
+dnl **********************************************************************
+
+LDAPLIBNAME=""
+AC_ARG_WITH(ldap-lib,
+AS_HELP_STRING([--with-ldap-lib=libname],[Specify name of ldap lib file]),
+ [LDAPLIBNAME="$withval"])
+
+LBERLIBNAME=""
+AC_ARG_WITH(lber-lib,
+AS_HELP_STRING([--with-lber-lib=libname],[Specify name of lber lib file]),
+ [LBERLIBNAME="$withval"])
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+
+  CURL_CHECK_HEADER_LBER
+  CURL_CHECK_HEADER_LDAP
+  CURL_CHECK_HEADER_LDAPSSL
+  CURL_CHECK_HEADER_LDAP_SSL
+
+  if test -z "$LDAPLIBNAME" ; then
+    if test "$curl_cv_native_windows" = "yes"; then
+      dnl Windows uses a single and unique LDAP library name
+      LDAPLIBNAME="wldap32"
+      LBERLIBNAME="no"
+    fi
+  fi
+
+  if test "$LDAPLIBNAME" ; then
+    AC_CHECK_LIB("$LDAPLIBNAME", ldap_init,, [
+      if test -n "$ldap_askedfor"; then
+        AC_MSG_ERROR([couldn't detect the LDAP libraries])
+      fi
+      AC_MSG_WARN(["$LDAPLIBNAME" is not an LDAP library: LDAP disabled])
+      AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
+      AC_SUBST(CURL_DISABLE_LDAP, [1])
+      AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+      AC_SUBST(CURL_DISABLE_LDAPS, [1])])
+  else
+    dnl Try to find the right ldap libraries for this system
+    CURL_CHECK_LIBS_LDAP
+    case X-"$curl_cv_ldap_LIBS" in
+      X-unknown)
+        if test -n "$ldap_askedfor"; then
+          AC_MSG_ERROR([couldn't detect the LDAP libraries])
+        fi
+        AC_MSG_WARN([Cannot find libraries for LDAP support: LDAP disabled])
+        AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
+        AC_SUBST(CURL_DISABLE_LDAP, [1])
+        AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+        AC_SUBST(CURL_DISABLE_LDAPS, [1])
+        ;;
+    esac
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+
+  if test "$LBERLIBNAME" ; then
+    dnl If name is "no" then don't define this library at all
+    dnl (it's only needed if libldap.so's dependencies are broken).
+    if test "$LBERLIBNAME" != "no" ; then
+      AC_CHECK_LIB("$LBERLIBNAME", ber_free,, [
+        AC_MSG_WARN(["$LBERLIBNAME" is not an LBER library: LDAP disabled])
+        AC_DEFINE(CURL_DISABLE_LDAP, 1, [to disable LDAP])
+        AC_SUBST(CURL_DISABLE_LDAP, [1])
+        AC_DEFINE(CURL_DISABLE_LDAPS, 1, [to disable LDAPS])
+        AC_SUBST(CURL_DISABLE_LDAPS, [1])])
+    fi
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAP != x1 ; then
+  AC_CHECK_FUNCS([ldap_url_parse ldap_init_fd])
+
+  if test "$LDAPLIBNAME" = "wldap32"; then
+    curl_ldap_msg="enabled (winldap)"
+    AC_DEFINE(USE_WIN32_LDAP, 1, [Use Windows LDAP implementation])
+  else
+    curl_ldap_msg="enabled (OpenLDAP)"
+    if test "x$ac_cv_func_ldap_init_fd" = "xyes"; then
+      AC_DEFINE(USE_OPENLDAP, 1, [Use OpenLDAP-specific code])
+      AC_SUBST(USE_OPENLDAP, [1])
+    fi
+  fi
+fi
+
+if test x$CURL_DISABLE_LDAPS != x1 ; then
+    curl_ldaps_msg="enabled"
+fi
+
+dnl **********************************************************************
+dnl Checks for IPv6
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to enable IPv6])
+AC_ARG_ENABLE(ipv6,
+AS_HELP_STRING([--enable-ipv6],[Enable IPv6 (with IPv4) support])
+AS_HELP_STRING([--disable-ipv6],[Disable IPv6 support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       ipv6=no
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ipv6=yes
+       ;;
+  esac ],
+
+  AC_RUN_IFELSE([AC_LANG_SOURCE([[
+/* are AF_INET6 and sockaddr_in6 available? */
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#include 
+#else
+#include 
+#include 
+#if defined (__TANDEM)
+# include 
+#endif
+#endif
+#include  /* for exit() */
+main()
+{
+ struct sockaddr_in6 s;
+ (void)s;
+ if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+   exit(1);
+ else
+   exit(0);
+}
+]])
+],
+  AC_MSG_RESULT(yes)
+  ipv6=yes,
+  AC_MSG_RESULT(no)
+  ipv6=no,
+  AC_MSG_RESULT(yes)
+  ipv6=yes
+))
+
+if test "$ipv6" = yes; then
+  curl_ipv6_msg="enabled"
+  AC_DEFINE(ENABLE_IPV6, 1, [Define if you want to enable IPv6 support])
+  IPV6_ENABLED=1
+  AC_SUBST(IPV6_ENABLED)
+
+  AC_MSG_CHECKING([if struct sockaddr_in6 has sin6_scope_id member])
+  AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[
+#include 
+#ifdef HAVE_WINSOCK2_H
+#include 
+#include 
+#else
+#include 
+#if defined (__TANDEM)
+# include 
+#endif
+#endif
+]], [[
+  struct sockaddr_in6 s;
+  s.sin6_scope_id = 0;
+]])], [
+  AC_MSG_RESULT([yes])
+  AC_DEFINE(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID, 1, [Define to 1 if struct sockaddr_in6 has the sin6_scope_id member])
+ ], [
+    AC_MSG_RESULT([no])
+ ])
+fi
+
+dnl **********************************************************************
+dnl Check if the operating system allows programs to write to their own argv[]
+dnl **********************************************************************
+
+AC_MSG_CHECKING([if argv can be written to])
+CURL_RUN_IFELSE([[
+int main(int argc, char **argv)
+{
+  (void)argc;
+  argv[0][0] = ' ';
+  return (argv[0][0] == ' ')?0:1;
+}
+]],[
+  curl_cv_writable_argv=yes
+],[
+  curl_cv_writable_argv=no
+],[
+  curl_cv_writable_argv=cross
+])
+case $curl_cv_writable_argv in
+yes)
+        AC_DEFINE(HAVE_WRITABLE_ARGV, 1, [Define this symbol if your OS supports changing the contents of argv])
+        AC_MSG_RESULT(yes)
+        ;;
+no)
+        AC_MSG_RESULT(no)
+        ;;
+*)
+        AC_MSG_RESULT(no)
+        AC_MSG_WARN([the previous check could not be made default was used])
+        ;;
+esac
+
+dnl **********************************************************************
+dnl Check for GSS-API libraries
+dnl **********************************************************************
+
+dnl check for GSS-API stuff in the /usr as default
+
+GSSAPI_ROOT="/usr"
+AC_ARG_WITH(gssapi-includes,
+  AS_HELP_STRING([--with-gssapi-includes=DIR],
+                 [Specify location of GSS-API headers]),
+  [ GSSAPI_INCS="-I$withval"
+    want_gss="yes" ]
+)
+
+AC_ARG_WITH(gssapi-libs,
+  AS_HELP_STRING([--with-gssapi-libs=DIR],
+                 [Specify location of GSS-API libs]),
+  [ GSSAPI_LIB_DIR="-L$withval"
+    want_gss="yes" ]
+)
+
+AC_ARG_WITH(gssapi,
+  AS_HELP_STRING([--with-gssapi=DIR],
+                 [Where to look for GSS-API]), [
+  GSSAPI_ROOT="$withval"
+  if test x"$GSSAPI_ROOT" != xno; then
+    want_gss="yes"
+    if test x"$GSSAPI_ROOT" = xyes; then
+      dnl if yes, then use default root
+      GSSAPI_ROOT="/usr"
+    fi
+  fi
+])
+
+: ${KRB5CONFIG:="$GSSAPI_ROOT/bin/krb5-config"}
+
+save_CPPFLAGS="$CPPFLAGS"
+AC_MSG_CHECKING([if GSS-API support is requested])
+if test x"$want_gss" = xyes; then
+  AC_MSG_RESULT(yes)
+
+  if test $GSSAPI_ROOT != "/usr"; then
+    CURL_CHECK_PKGCONFIG(mit-krb5-gssapi, $GSSAPI_ROOT/lib/pkgconfig)
+  else
+    CURL_CHECK_PKGCONFIG(mit-krb5-gssapi)
+  fi
+  if test -z "$GSSAPI_INCS"; then
+     if test -n "$host_alias" -a -f "$GSSAPI_ROOT/bin/$host_alias-krb5-config"; then
+        GSSAPI_INCS=`$GSSAPI_ROOT/bin/$host_alias-krb5-config --cflags gssapi`
+     elif test "$PKGCONFIG" != "no" ; then
+        GSSAPI_INCS=`$PKGCONFIG --cflags mit-krb5-gssapi`
+     elif test -f "$KRB5CONFIG"; then
+        GSSAPI_INCS=`$KRB5CONFIG --cflags gssapi`
+     elif test "$GSSAPI_ROOT" != "yes"; then
+        GSSAPI_INCS="-I$GSSAPI_ROOT/include"
+     fi
+  fi
+
+  CPPFLAGS="$CPPFLAGS $GSSAPI_INCS"
+
+  AC_CHECK_HEADER(gss.h,
+    [
+      dnl found in the given dirs
+      AC_DEFINE(HAVE_GSSGNU, 1, [if you have GNU GSS])
+      gnu_gss=yes
+    ],
+    [
+      dnl not found, check Heimdal or MIT
+      AC_CHECK_HEADERS([gssapi/gssapi.h], [], [not_mit=1])
+      AC_CHECK_HEADERS(
+        [gssapi/gssapi_generic.h gssapi/gssapi_krb5.h],
+        [],
+        [not_mit=1],
+        [
+AC_INCLUDES_DEFAULT
+#ifdef HAVE_GSSAPI_GSSAPI_H
+#include 
+#endif
+        ])
+      if test "x$not_mit" = "x1"; then
+        dnl MIT not found, check for Heimdal
+        AC_CHECK_HEADER(gssapi.h,
+            [
+              dnl found
+              AC_DEFINE(HAVE_GSSHEIMDAL, 1, [if you have Heimdal])
+            ],
+            [
+              dnl no header found, disabling GSS
+              want_gss=no
+              AC_MSG_WARN(disabling GSS-API support since no header files were found)
+            ]
+          )
+      else
+        dnl MIT found
+        AC_DEFINE(HAVE_GSSMIT, 1, [if you have MIT Kerberos])
+        dnl check if we have a really old MIT Kerberos version (<= 1.2)
+        AC_MSG_CHECKING([if GSS-API headers declare GSS_C_NT_HOSTBASED_SERVICE])
+        AC_COMPILE_IFELSE([
+          AC_LANG_PROGRAM([[
+#include 
+#include 
+#include 
+          ]],[[
+            gss_import_name(
+                            (OM_uint32 *)0,
+                            (gss_buffer_t)0,
+                            GSS_C_NT_HOSTBASED_SERVICE,
+                            (gss_name_t *)0);
+          ]])
+        ],[
+          AC_MSG_RESULT([yes])
+        ],[
+          AC_MSG_RESULT([no])
+          AC_DEFINE(HAVE_OLD_GSSMIT, 1,
+            [if you have an old MIT Kerberos version, lacking GSS_C_NT_HOSTBASED_SERVICE])
+        ])
+      fi
+    ]
+  )
+else
+  AC_MSG_RESULT(no)
+fi
+if test x"$want_gss" = xyes; then
+  AC_DEFINE(HAVE_GSSAPI, 1, [if you have GSS-API libraries])
+  HAVE_GSSAPI=1
+  curl_gss_msg="enabled (MIT Kerberos/Heimdal)"
+
+  if test -n "$gnu_gss"; then
+    curl_gss_msg="enabled (GNU GSS)"
+    LDFLAGS="$LDFLAGS $GSSAPI_LIB_DIR"
+    LIBS="-lgss $LIBS"
+  elif test -z "$GSSAPI_LIB_DIR"; then
+     case $host in
+     *-*-darwin*)
+        LIBS="-lgssapi_krb5 -lresolv $LIBS"
+        ;;
+     *)
+        if test $GSSAPI_ROOT != "/usr"; then
+          CURL_CHECK_PKGCONFIG(mit-krb5-gssapi, $GSSAPI_ROOT/lib/pkgconfig)
+        else
+          CURL_CHECK_PKGCONFIG(mit-krb5-gssapi)
+        fi
+        if test -n "$host_alias" -a -f "$GSSAPI_ROOT/bin/$host_alias-krb5-config"; then
+           dnl krb5-config doesn't have --libs-only-L or similar, put everything
+           dnl into LIBS
+           gss_libs=`$GSSAPI_ROOT/bin/$host_alias-krb5-config --libs gssapi`
+           LIBS="$gss_libs $LIBS"
+        elif test "$PKGCONFIG" != "no" ; then
+           gss_libs=`$PKGCONFIG --libs mit-krb5-gssapi`
+           LIBS="$gss_libs $LIBS"
+        elif test -f "$KRB5CONFIG"; then
+           dnl krb5-config doesn't have --libs-only-L or similar, put everything
+           dnl into LIBS
+           gss_libs=`$KRB5CONFIG --libs gssapi`
+           LIBS="$gss_libs $LIBS"
+        else
+           case $host in
+           *-hp-hpux*)
+              gss_libname="gss"
+              ;;
+           *)
+              gss_libname="gssapi"
+              ;;
+           esac
+
+           if test "$GSSAPI_ROOT" != "yes"; then
+              LDFLAGS="$LDFLAGS -L$GSSAPI_ROOT/lib$libsuff"
+              LIBS="-l$gss_libname $LIBS"
+           else
+              LIBS="-l$gss_libname $LIBS"
+           fi
+        fi
+        ;;
+     esac
+  else
+     LDFLAGS="$LDFLAGS $GSSAPI_LIB_DIR"
+     case $host in
+     *-hp-hpux*)
+        LIBS="-lgss $LIBS"
+        ;;
+     *)
+        LIBS="-lgssapi $LIBS"
+        ;;
+     esac
+  fi
+else
+  CPPFLAGS="$save_CPPFLAGS"
+fi
+
+if test x"$want_gss" = xyes; then
+  AC_MSG_CHECKING([if we can link against GSS-API library])
+  AC_LINK_IFELSE([
+    AC_LANG_FUNC_LINK_TRY([gss_init_sec_context])
+  ],[
+    AC_MSG_RESULT([yes])
+  ],[
+    AC_MSG_RESULT([no])
+    AC_MSG_ERROR([--with-gssapi was specified, but a GSS-API library was not found.])
+  ])
+fi
+
+build_libstubgss=no
+if test x"$want_gss" = "xyes"; then
+  build_libstubgss=yes
+fi
+
+AM_CONDITIONAL(BUILD_STUB_GSS, test "x$build_libstubgss" = "xyes")
+
+dnl -------------------------------------------------------------
+dnl parse --with-default-ssl-backend so it can be validated below
+dnl -------------------------------------------------------------
+
+DEFAULT_SSL_BACKEND=no
+VALID_DEFAULT_SSL_BACKEND=
+AC_ARG_WITH(default-ssl-backend,
+AS_HELP_STRING([--with-default-ssl-backend=NAME],[Use NAME as default SSL backend])
+AS_HELP_STRING([--without-default-ssl-backend],[Use implicit default SSL backend]),
+  [DEFAULT_SSL_BACKEND=$withval])
+case "$DEFAULT_SSL_BACKEND" in
+  no)
+    dnl --without-default-ssl-backend option used
+    ;;
+  default|yes)
+    dnl --with-default-ssl-backend option used without name
+    AC_MSG_ERROR([The name of the default SSL backend is required.])
+    ;;
+  *)
+    dnl --with-default-ssl-backend option used with name
+    AC_SUBST(DEFAULT_SSL_BACKEND)
+    dnl needs to be validated below
+    VALID_DEFAULT_SSL_BACKEND=no
+    ;;
+esac
+
+CURL_WITH_SCHANNEL
+CURL_WITH_SECURETRANSPORT
+CURL_WITH_AMISSL
+CURL_WITH_OPENSSL
+CURL_WITH_GNUTLS
+CURL_WITH_MBEDTLS
+CURL_WITH_WOLFSSL
+CURL_WITH_BEARSSL
+CURL_WITH_RUSTLS
+CURL_WITH_NSS
+
+dnl link required libraries for USE_WIN32_CRYPTO or USE_SCHANNEL
+if test "x$USE_WIN32_CRYPTO" = "x1" -o "x$USE_SCHANNEL" = "x1"; then
+  LIBS="-ladvapi32 -lcrypt32 $LIBS"
+fi
+
+case "x$OPENSSL_ENABLED$GNUTLS_ENABLED$NSS_ENABLED$MBEDTLS_ENABLED$WOLFSSL_ENABLED$SCHANNEL_ENABLED$SECURETRANSPORT_ENABLED$BEARSSL_ENABLED$AMISSL_ENABLED$RUSTLS_ENABLED"
+in
+x)
+  AC_MSG_WARN([SSL disabled, you will not be able to use HTTPS, FTPS, NTLM and more.])
+  AC_MSG_WARN([Use --with-openssl, --with-gnutls, --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel, --with-secure-transport, --with-amissl, --with-bearssl or --with-rustls to address this.])
+  ;;
+x1)
+  # one SSL backend is enabled
+  AC_SUBST(SSL_ENABLED)
+  SSL_ENABLED="1"
+  AC_MSG_NOTICE([built with one SSL backend])
+  ;;
+*)
+  # more than one SSL backend is enabled
+  AC_SUBST(SSL_ENABLED)
+  SSL_ENABLED="1"
+  AC_SUBST(CURL_WITH_MULTI_SSL)
+  CURL_WITH_MULTI_SSL="1"
+  AC_DEFINE(CURL_WITH_MULTI_SSL, 1, [built with multiple SSL backends])
+  AC_MSG_NOTICE([built with multiple SSL backends])
+  ;;
+esac
+
+if test -n "$ssl_backends"; then
+  curl_ssl_msg="enabled ($ssl_backends)"
+fi
+
+if test no = "$VALID_DEFAULT_SSL_BACKEND"
+then
+  if test -n "$SSL_ENABLED"
+  then
+    AC_MSG_ERROR([Default SSL backend $DEFAULT_SSL_BACKEND not enabled!])
+  else
+    AC_MSG_ERROR([Default SSL backend requires SSL!])
+  fi
+elif test yes = "$VALID_DEFAULT_SSL_BACKEND"
+then
+  AC_DEFINE_UNQUOTED([CURL_DEFAULT_SSL_BACKEND], ["$DEFAULT_SSL_BACKEND"], [Default SSL backend])
+fi
+
+dnl **********************************************************************
+dnl Check for the CA bundle
+dnl **********************************************************************
+
+if test -n "$check_for_ca_bundle"; then
+  CURL_CHECK_CA_BUNDLE
+fi
+
+dnl **********************************************************************
+dnl Check for libpsl
+dnl **********************************************************************
+
+AC_ARG_WITH(libpsl,
+           AS_HELP_STRING([--without-libpsl],
+           [disable support for libpsl cookie checking]),
+           with_libpsl=$withval,
+           with_libpsl=yes)
+if test $with_libpsl != "no"; then
+  AC_SEARCH_LIBS(psl_builtin, psl,
+    [curl_psl_msg="enabled";
+     AC_DEFINE([USE_LIBPSL], [1], [PSL support enabled])
+     ],
+    [curl_psl_msg="no      (libpsl not found)";
+     AC_MSG_WARN([libpsl was not found])
+     ]
+  )
+fi
+AM_CONDITIONAL([USE_LIBPSL], [test "$curl_psl_msg" = "enabled"])
+
+
+dnl **********************************************************************
+dnl Check for libgsasl
+dnl **********************************************************************
+
+AC_ARG_WITH(libgsasl,
+           AS_HELP_STRING([--without-libgsasl],
+           [disable libgsasl support for SCRAM]),
+           with_libgsasl=$withval,
+           with_libgsasl=yes)
+if test $with_libgsasl != "no"; then
+  AC_SEARCH_LIBS(gsasl_init, gsasl,
+    [curl_gsasl_msg="enabled";
+     AC_DEFINE([USE_GSASL], [1], [GSASL support enabled])
+     ],
+    [curl_gsasl_msg="no      (libgsasl not found)";
+     AC_MSG_WARN([libgsasl was not found])
+     ]
+  )
+fi
+AM_CONDITIONAL([USE_GSASL], [test "$curl_gsasl_msg" = "enabled"])
+
+AC_ARG_WITH(libmetalink,,
+  AC_MSG_ERROR([--with-libmetalink no longer works!]))
+
+dnl **********************************************************************
+dnl Check for the presence of LIBSSH2 libraries and headers
+dnl **********************************************************************
+
+dnl Default to compiler & linker defaults for LIBSSH2 files & libraries.
+OPT_LIBSSH2=off
+AC_ARG_WITH(libssh2,dnl
+AS_HELP_STRING([--with-libssh2=PATH],[Where to look for libssh2, PATH points to the libssh2 installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--with-libssh2], [enable libssh2]),
+  OPT_LIBSSH2=$withval, OPT_LIBSSH2=no)
+
+
+OPT_LIBSSH=off
+AC_ARG_WITH(libssh,dnl
+AS_HELP_STRING([--with-libssh=PATH],[Where to look for libssh, PATH points to the libssh installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--with-libssh], [enable libssh]),
+  OPT_LIBSSH=$withval, OPT_LIBSSH=no)
+
+OPT_WOLFSSH=off
+AC_ARG_WITH(wolfssh,dnl
+AS_HELP_STRING([--with-wolfssh=PATH],[Where to look for wolfssh, PATH points to the wolfSSH installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--with-wolfssh], [enable wolfssh]),
+  OPT_WOLFSSH=$withval, OPT_WOLFSSH=no)
+
+if test X"$OPT_LIBSSH2" != Xno; then
+  dnl backup the pre-libssh2 variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBSSH2" in
+  yes)
+    dnl --with-libssh2 (without path) used
+    CURL_CHECK_PKGCONFIG(libssh2)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_SSH2=`$PKGCONFIG --libs libssh2`
+      LD_SSH2=`$PKGCONFIG --libs-only-L libssh2`
+      CPP_SSH2=`$PKGCONFIG --cflags-only-I libssh2`
+      version=`$PKGCONFIG --modversion libssh2`
+      DIR_SSH2=`echo $LD_SSH2 | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+    dnl no --with-libssh2 option given, just check default places
+    ;;
+  *)
+    dnl use the given --with-libssh2 spot
+    PREFIX_SSH2=$OPT_LIBSSH2
+    ;;
+  esac
+
+  dnl if given with a prefix, we set -L and -I based on that
+  if test -n "$PREFIX_SSH2"; then
+    LIB_SSH2="-lssh2"
+    LD_SSH2=-L${PREFIX_SSH2}/lib$libsuff
+    CPP_SSH2=-I${PREFIX_SSH2}/include
+    DIR_SSH2=${PREFIX_SSH2}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_SSH2"
+  CPPFLAGS="$CPPFLAGS $CPP_SSH2"
+  LIBS="$LIB_SSH2 $LIBS"
+
+  dnl check for function added in libssh2 version 1.0
+  AC_CHECK_LIB(ssh2, libssh2_session_block_directions)
+
+  AC_CHECK_HEADERS(libssh2.h,
+    curl_ssh_msg="enabled (libSSH2)"
+    LIBSSH2_ENABLED=1
+    AC_DEFINE(USE_LIBSSH2, 1, [if libSSH2 is in use])
+    AC_SUBST(USE_LIBSSH2, [1])
+  )
+
+  if test X"$OPT_LIBSSH2" != Xoff &&
+     test "$LIBSSH2_ENABLED" != "1"; then
+    AC_MSG_ERROR([libSSH2 libs and/or directories were not found where specified!])
+  fi
+
+  if test "$LIBSSH2_ENABLED" = "1"; then
+    if test -n "$DIR_SSH2"; then
+       dnl when the libssh2 shared libs were found in a path that the run-time
+       dnl linker doesn't search through, we need to add it to CURL_LIBRARY_PATH
+       dnl to prevent further configure tests to fail due to this
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_SSH2"
+         export CURL_LIBRARY_PATH
+         AC_MSG_NOTICE([Added $DIR_SSH2 to CURL_LIBRARY_PATH])
+       fi
+    fi
+  else
+    dnl no libssh2, revert back to clean variables
+    LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+elif test X"$OPT_LIBSSH" != Xno; then
+  dnl backup the pre-libssh variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBSSH" in
+  yes)
+    dnl --with-libssh (without path) used
+    CURL_CHECK_PKGCONFIG(libssh)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_SSH=`$PKGCONFIG --libs-only-l libssh`
+      LD_SSH=`$PKGCONFIG --libs-only-L libssh`
+      CPP_SSH=`$PKGCONFIG --cflags-only-I libssh`
+      version=`$PKGCONFIG --modversion libssh`
+      DIR_SSH=`echo $LD_SSH | $SED -e 's/^-L//'`
+    fi
+
+    ;;
+  off)
+    dnl no --with-libssh option given, just check default places
+    ;;
+  *)
+    dnl use the given --with-libssh spot
+    PREFIX_SSH=$OPT_LIBSSH
+    ;;
+  esac
+
+  dnl if given with a prefix, we set -L and -I based on that
+  if test -n "$PREFIX_SSH"; then
+    LIB_SSH="-lssh"
+    LD_SSH=-L${PREFIX_SSH}/lib$libsuff
+    CPP_SSH=-I${PREFIX_SSH}/include
+    DIR_SSH=${PREFIX_SSH}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_SSH"
+  CPPFLAGS="$CPPFLAGS $CPP_SSH"
+  LIBS="$LIB_SSH $LIBS"
+
+  AC_CHECK_LIB(ssh, ssh_new)
+
+  AC_CHECK_HEADERS(libssh/libssh.h,
+    curl_ssh_msg="enabled (libSSH)"
+    LIBSSH_ENABLED=1
+    AC_DEFINE(USE_LIBSSH, 1, [if libSSH is in use])
+    AC_SUBST(USE_LIBSSH, [1])
+  )
+
+  if test X"$OPT_LIBSSH" != Xoff &&
+     test "$LIBSSH_ENABLED" != "1"; then
+    AC_MSG_ERROR([libSSH libs and/or directories were not found where specified!])
+  fi
+
+  if test "$LIBSSH_ENABLED" = "1"; then
+    if test -n "$DIR_SSH"; then
+       dnl when the libssh shared libs were found in a path that the run-time
+       dnl linker doesn't search through, we need to add it to CURL_LIBRARY_PATH
+       dnl to prevent further configure tests to fail due to this
+
+       if test "x$cross_compiling" != "xyes"; then
+         CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_SSH"
+         export CURL_LIBRARY_PATH
+         AC_MSG_NOTICE([Added $DIR_SSH to CURL_LIBRARY_PATH])
+       fi
+    fi
+  else
+    dnl no libssh, revert back to clean variables
+    LDFLAGS=$CLEANLDFLAGS
+    CPPFLAGS=$CLEANCPPFLAGS
+    LIBS=$CLEANLIBS
+  fi
+elif test X"$OPT_WOLFSSH" != Xno; then
+  dnl backup the pre-wolfssh variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+
+  if test "$OPT_WOLFSSH" != yes; then
+     WOLFCONFIG="$OPT_WOLFSSH/bin/wolfssh-config"
+     LDFLAGS="$LDFLAGS `$WOLFCONFIG --libs`"
+     CPPFLAGS="$CPPFLAGS `$WOLFCONFIG --cflags`"
+  fi
+
+  AC_CHECK_LIB(wolfssh, wolfSSH_Init)
+
+  AC_CHECK_HEADERS(wolfssh/ssh.h,
+    curl_ssh_msg="enabled (wolfSSH)"
+    WOLFSSH_ENABLED=1
+    AC_DEFINE(USE_WOLFSSH, 1, [if wolfSSH is in use])
+    AC_SUBST(USE_WOLFSSH, [1])
+  )
+
+fi
+
+dnl **********************************************************************
+dnl Check for the presence of LIBRTMP libraries and headers
+dnl **********************************************************************
+
+dnl Default to compiler & linker defaults for LIBRTMP files & libraries.
+OPT_LIBRTMP=off
+AC_ARG_WITH(librtmp,dnl
+AS_HELP_STRING([--with-librtmp=PATH],[Where to look for librtmp, PATH points to the LIBRTMP installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
+AS_HELP_STRING([--without-librtmp], [disable LIBRTMP]),
+  OPT_LIBRTMP=$withval)
+
+if test X"$OPT_LIBRTMP" != Xno; then
+  dnl backup the pre-librtmp variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  case "$OPT_LIBRTMP" in
+  yes)
+    dnl --with-librtmp (without path) used
+    CURL_CHECK_PKGCONFIG(librtmp)
+
+    if test "$PKGCONFIG" != "no" ; then
+      LIB_RTMP=`$PKGCONFIG --libs-only-l librtmp`
+      LD_RTMP=`$PKGCONFIG --libs-only-L librtmp`
+      CPP_RTMP=`$PKGCONFIG --cflags-only-I librtmp`
+      version=`$PKGCONFIG --modversion librtmp`
+      DIR_RTMP=`echo $LD_RTMP | $SED -e 's/^-L//'`
+    else
+      dnl To avoid link errors, we do not allow --librtmp without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--librtmp was specified but could not find librtmp pkgconfig file.])
+    fi
+
+    ;;
+  off)
+    dnl no --with-librtmp option given, just check default places
+    LIB_RTMP="-lrtmp"
+    ;;
+  *)
+    dnl use the given --with-librtmp spot
+    LIB_RTMP="-lrtmp"
+    PREFIX_RTMP=$OPT_LIBRTMP
+    ;;
+  esac
+
+  dnl if given with a prefix, we set -L and -I based on that
+  if test -n "$PREFIX_RTMP"; then
+    LD_RTMP=-L${PREFIX_RTMP}/lib$libsuff
+    CPP_RTMP=-I${PREFIX_RTMP}/include
+    DIR_RTMP=${PREFIX_RTMP}/lib$libsuff
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_RTMP"
+  CPPFLAGS="$CPPFLAGS $CPP_RTMP"
+  LIBS="$LIB_RTMP $LIBS"
+
+  AC_CHECK_LIB(rtmp, RTMP_Init,
+    [
+     AC_CHECK_HEADERS(librtmp/rtmp.h,
+        curl_rtmp_msg="enabled (librtmp)"
+        LIBRTMP_ENABLED=1
+        AC_DEFINE(USE_LIBRTMP, 1, [if librtmp is in use])
+        AC_SUBST(USE_LIBRTMP, [1])
+     )
+    ],
+      dnl not found, revert back to clean variables
+      LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+  )
+
+  if test X"$OPT_LIBRTMP" != Xoff &&
+     test "$LIBRTMP_ENABLED" != "1"; then
+    AC_MSG_ERROR([librtmp libs and/or directories were not found where specified!])
+  fi
+
+fi
+
+dnl **********************************************************************
+dnl Check for linker switch for versioned symbols
+dnl **********************************************************************
+
+versioned_symbols_flavour=
+AC_MSG_CHECKING([whether versioned symbols are wanted])
+AC_ARG_ENABLE(versioned-symbols,
+AS_HELP_STRING([--enable-versioned-symbols], [Enable versioned symbols in shared library])
+AS_HELP_STRING([--disable-versioned-symbols], [Disable versioned symbols in shared library]),
+[ case "$enableval" in
+  yes) AC_MSG_RESULT(yes)
+    AC_MSG_CHECKING([if libraries can be versioned])
+    GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
+    if test -z "$GLD"; then
+        AC_MSG_RESULT(no)
+        AC_MSG_WARN([You need an ld version supporting the --version-script option])
+    else
+        AC_MSG_RESULT(yes)
+        if test "x$CURL_WITH_MULTI_SSL" = "x1"; then
+          versioned_symbols_flavour="MULTISSL_"
+        elif test "x$OPENSSL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="OPENSSL_"
+        elif test "x$GNUTLS_ENABLED" = "x1"; then
+          versioned_symbols_flavour="GNUTLS_"
+        elif test "x$NSS_ENABLED" = "x1"; then
+          versioned_symbols_flavour="NSS_"
+        elif test "x$WOLFSSL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="WOLFSSL_"
+        elif test "x$SCHANNEL_ENABLED" = "x1"; then
+          versioned_symbols_flavour="SCHANNEL_"
+        elif test "x$SECURETRANSPORT_ENABLED" = "x1"; then
+          versioned_symbols_flavour="SECURE_TRANSPORT_"
+        else
+          versioned_symbols_flavour=""
+        fi
+        versioned_symbols="yes"
+    fi
+    ;;
+
+  *)   AC_MSG_RESULT(no)
+    ;;
+  esac
+], [
+AC_MSG_RESULT(no)
+]
+)
+
+AC_SUBST([CURL_LT_SHLIB_VERSIONED_FLAVOUR],
+  ["$versioned_symbols_flavour"])
+AM_CONDITIONAL([CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS],
+  [test "x$versioned_symbols" = 'xyes'])
+
+dnl Update .plist file with current version
+AC_SUBST([CURL_PLIST_VERSION],
+  ["$CURLVERSION"])
+
+dnl -------------------------------------------------
+dnl check winidn option before other IDN libraries
+dnl -------------------------------------------------
+
+AC_MSG_CHECKING([whether to enable Windows native IDN (Windows native builds only)])
+OPT_WINIDN="default"
+AC_ARG_WITH(winidn,
+AS_HELP_STRING([--with-winidn=PATH],[enable Windows native IDN])
+AS_HELP_STRING([--without-winidn], [disable Windows native IDN]),
+  OPT_WINIDN=$withval)
+case "$OPT_WINIDN" in
+  no|default)
+    dnl --without-winidn option used or configure option not specified
+    want_winidn="no"
+    AC_MSG_RESULT([no])
+    ;;
+  yes)
+    dnl --with-winidn option used without path
+    want_winidn="yes"
+    want_winidn_path="default"
+    AC_MSG_RESULT([yes])
+    ;;
+  *)
+    dnl --with-winidn option used with path
+    want_winidn="yes"
+    want_winidn_path="$withval"
+    AC_MSG_RESULT([yes ($withval)])
+    ;;
+esac
+
+if test "$want_winidn" = "yes"; then
+  dnl winidn library support has been requested
+  clean_CFLAGS="$CFLAGS"
+  clean_CPPFLAGS="$CPPFLAGS"
+  clean_LDFLAGS="$LDFLAGS"
+  clean_LIBS="$LIBS"
+  WINIDN_LIBS="-lnormaliz"
+  WINIDN_CPPFLAGS=""
+  #
+  if test "$want_winidn_path" != "default"; then
+    dnl path has been specified
+    dnl pkg-config not available or provides no info
+    WINIDN_LDFLAGS="-L$want_winidn_path/lib$libsuff"
+    WINIDN_CPPFLAGS="-I$want_winidn_path/include"
+    WINIDN_DIR="$want_winidn_path/lib$libsuff"
+  fi
+  #
+  dnl WinIDN requires a minimum supported OS version of at least Vista (0x0600)
+  AC_COMPILE_IFELSE([
+    AC_LANG_PROGRAM([[
+      #include 
+    ]],[[
+      #if (WINVER < 0x600) && (_WIN32_WINNT < 0x600)
+      #error
+      #endif
+    ]])
+  ],[
+  ],[
+     CFLAGS=`echo $CFLAGS | $SED -e 's/-DWINVER=[[^ ]]*//g'`
+     CFLAGS=`echo $CFLAGS | $SED -e 's/-D_WIN32_WINNT=[[^ ]]*//g'`
+     CPPFLAGS=`echo $CPPFLAGS | $SED -e 's/-DWINVER=[[^ ]]*//g'`
+     CPPFLAGS=`echo $CPPFLAGS | $SED -e 's/-D_WIN32_WINNT=[[^ ]]*//g'`
+     WINIDN_CPPFLAGS="$WINIDN_CPPFLAGS -DWINVER=0x0600"
+  ])
+  #
+  CPPFLAGS="$CPPFLAGS $WINIDN_CPPFLAGS"
+  LDFLAGS="$LDFLAGS $WINIDN_LDFLAGS"
+  LIBS="$WINIDN_LIBS $LIBS"
+  #
+  AC_MSG_CHECKING([if IdnToUnicode can be linked])
+  AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([[
+      #include 
+    ]],[[
+      IdnToUnicode(0, NULL, 0, NULL, 0);
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    tst_links_winidn="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    tst_links_winidn="no"
+  ])
+  #
+  if test "$tst_links_winidn" = "yes"; then
+    AC_DEFINE(USE_WIN32_IDN, 1, [Define to 1 if you have the `normaliz' (WinIDN) library (-lnormaliz).])
+    AC_DEFINE(WANT_IDN_PROTOTYPES, 1, [Define to 1 to provide own prototypes.])
+    AC_SUBST([IDN_ENABLED], [1])
+    curl_idn_msg="enabled (Windows-native)"
+  else
+    AC_MSG_WARN([Cannot find libraries for IDN support: IDN disabled])
+    CFLAGS="$clean_CFLAGS"
+    CPPFLAGS="$clean_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS"
+    LIBS="$clean_LIBS"
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for the presence of IDN libraries and headers
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to build with libidn2])
+OPT_IDN="default"
+AC_ARG_WITH(libidn2,
+AS_HELP_STRING([--with-libidn2=PATH],[Enable libidn2 usage])
+AS_HELP_STRING([--without-libidn2],[Disable libidn2 usage]),
+  [OPT_IDN=$withval])
+case "$OPT_IDN" in
+  no)
+    dnl --without-libidn2 option used
+    want_idn="no"
+    AC_MSG_RESULT([no])
+    ;;
+  default)
+    dnl configure option not specified
+    want_idn="yes"
+    want_idn_path="default"
+    AC_MSG_RESULT([(assumed) yes])
+    ;;
+  yes)
+    dnl --with-libidn2 option used without path
+    want_idn="yes"
+    want_idn_path="default"
+    AC_MSG_RESULT([yes])
+    ;;
+  *)
+    dnl --with-libidn2 option used with path
+    want_idn="yes"
+    want_idn_path="$withval"
+    AC_MSG_RESULT([yes ($withval)])
+    ;;
+esac
+
+if test "$want_idn" = "yes"; then
+  dnl idn library support has been requested
+  clean_CPPFLAGS="$CPPFLAGS"
+  clean_LDFLAGS="$LDFLAGS"
+  clean_LIBS="$LIBS"
+  PKGCONFIG="no"
+  #
+  if test "$want_idn_path" != "default"; then
+    dnl path has been specified
+    IDN_PCDIR="$want_idn_path/lib$libsuff/pkgconfig"
+    CURL_CHECK_PKGCONFIG(libidn2, [$IDN_PCDIR])
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+      IDN_LDFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+      IDN_CPPFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/^-L//'`
+    else
+      dnl pkg-config not available or provides no info
+      IDN_LIBS="-lidn2"
+      IDN_LDFLAGS="-L$want_idn_path/lib$libsuff"
+      IDN_CPPFLAGS="-I$want_idn_path/include"
+      IDN_DIR="$want_idn_path/lib$libsuff"
+    fi
+  else
+    dnl path not specified
+    CURL_CHECK_PKGCONFIG(libidn2)
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`$PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+      IDN_LDFLAGS=`$PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+      IDN_CPPFLAGS=`$PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/^-L//'`
+    else
+      dnl pkg-config not available or provides no info
+      IDN_LIBS="-lidn2"
+    fi
+  fi
+  #
+  if test "$PKGCONFIG" != "no"; then
+    AC_MSG_NOTICE([pkg-config: IDN_LIBS: "$IDN_LIBS"])
+    AC_MSG_NOTICE([pkg-config: IDN_LDFLAGS: "$IDN_LDFLAGS"])
+    AC_MSG_NOTICE([pkg-config: IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+    AC_MSG_NOTICE([pkg-config: IDN_DIR: "$IDN_DIR"])
+  else
+    AC_MSG_NOTICE([IDN_LIBS: "$IDN_LIBS"])
+    AC_MSG_NOTICE([IDN_LDFLAGS: "$IDN_LDFLAGS"])
+    AC_MSG_NOTICE([IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+    AC_MSG_NOTICE([IDN_DIR: "$IDN_DIR"])
+  fi
+  #
+  CPPFLAGS="$CPPFLAGS $IDN_CPPFLAGS"
+  LDFLAGS="$LDFLAGS $IDN_LDFLAGS"
+  LIBS="$IDN_LIBS $LIBS"
+  #
+  AC_MSG_CHECKING([if idn2_lookup_ul can be linked])
+  AC_LINK_IFELSE([
+    AC_LANG_FUNC_LINK_TRY([idn2_lookup_ul])
+  ],[
+    AC_MSG_RESULT([yes])
+    tst_links_libidn="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    tst_links_libidn="no"
+  ])
+  #
+  AC_CHECK_HEADERS( idn2.h )
+
+  if test "$tst_links_libidn" = "yes"; then
+    AC_DEFINE(HAVE_LIBIDN2, 1, [Define to 1 if you have the `idn2' library (-lidn2).])
+    dnl different versions of libidn have different setups of these:
+
+    AC_SUBST([IDN_ENABLED], [1])
+    curl_idn_msg="enabled (libidn2)"
+    if test -n "$IDN_DIR" -a "x$cross_compiling" != "xyes"; then
+      CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$IDN_DIR"
+      export CURL_LIBRARY_PATH
+      AC_MSG_NOTICE([Added $IDN_DIR to CURL_LIBRARY_PATH])
+    fi
+  else
+    AC_MSG_WARN([Cannot find libraries for IDN support: IDN disabled])
+    CPPFLAGS="$clean_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS"
+    LIBS="$clean_LIBS"
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for nghttp2
+dnl **********************************************************************
+
+OPT_H2="yes"
+
+if test "x$disable_http" = "xyes" -o X"$want_hyper" != Xno; then
+  # without HTTP or with Hyper, nghttp2 is no use
+  OPT_H2="no"
+fi
+
+AC_ARG_WITH(nghttp2,
+AS_HELP_STRING([--with-nghttp2=PATH],[Enable nghttp2 usage])
+AS_HELP_STRING([--without-nghttp2],[Disable nghttp2 usage]),
+  [OPT_H2=$withval])
+case "$OPT_H2" in
+  no)
+    dnl --without-nghttp2 option used
+    want_nghttp2="no"
+    ;;
+  yes)
+    dnl --with-nghttp2 option used without path
+    want_nghttp2="default"
+    want_nghttp2_path=""
+    want_nghttp2_pkg_config_path=""
+    ;;
+  *)
+    dnl --with-nghttp2 option used with path
+    want_nghttp2="yes"
+    want_nghttp2_path="$withval"
+    want_nghttp2_pkg_config_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+if test X"$want_nghttp2" != Xno; then
+  dnl backup the pre-nghttp2 variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(libnghttp2, $want_nghttp2_pkg_config_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_H2=`CURL_EXPORT_PCDIR([$want_nghttp2_pkg_config_path])
+      $PKGCONFIG --libs-only-l libnghttp2`
+    AC_MSG_NOTICE([-l is $LIB_H2])
+
+    CPP_H2=`CURL_EXPORT_PCDIR([$want_nghttp2_pkg_config_path]) dnl
+      $PKGCONFIG --cflags-only-I libnghttp2`
+    AC_MSG_NOTICE([-I is $CPP_H2])
+
+    LD_H2=`CURL_EXPORT_PCDIR([$want_nghttp2_pkg_config_path])
+      $PKGCONFIG --libs-only-L libnghttp2`
+    AC_MSG_NOTICE([-L is $LD_H2])
+
+    DIR_H2=`echo $LD_H2 | $SED -e 's/^-L//'`
+  elif test x"$want_nghttp2_path" != x; then
+    LIB_H2="-lnghttp2"
+    LD_H2=-L${want_nghttp2_path}/lib$libsuff
+    CPP_H2=-I${want_nghttp2_path}/include
+    DIR_H2=${want_nghttp2_path}/lib$libsuff
+  elif test X"$want_nghttp2" != Xdefault; then
+    dnl no nghttp2 pkg-config found and no custom directory specified,
+    dnl deal with it
+    AC_MSG_ERROR([--with-nghttp2 was specified but could not find libnghttp2 pkg-config file.])
+  fi
+
+  LDFLAGS="$LDFLAGS $LD_H2"
+  CPPFLAGS="$CPPFLAGS $CPP_H2"
+  LIBS="$LIB_H2 $LIBS"
+
+  # use nghttp2_session_set_local_window_size to require nghttp2
+  # >= 1.12.0
+  AC_CHECK_LIB(nghttp2, nghttp2_session_set_local_window_size,
+    [
+     AC_CHECK_HEADERS(nghttp2/nghttp2.h,
+        curl_h2_msg="enabled (nghttp2)"
+        NGHTTP2_ENABLED=1
+        AC_DEFINE(USE_NGHTTP2, 1, [if nghttp2 is in use])
+        AC_SUBST(USE_NGHTTP2, [1])
+     )
+
+     CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_H2"
+     export CURL_LIBRARY_PATH
+     AC_MSG_NOTICE([Added $DIR_H2 to CURL_LIBRARY_PATH])
+    ],
+      dnl not found, revert back to clean variables
+      LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+  )
+fi
+
+dnl **********************************************************************
+dnl Check for ngtcp2 (QUIC)
+dnl **********************************************************************
+
+OPT_TCP2="yes"
+
+if test "x$disable_http" = "xyes"; then
+  # without HTTP, ngtcp2 is no use
+  OPT_TCP2="no"
+fi
+
+AC_ARG_WITH(ngtcp2,
+AS_HELP_STRING([--with-ngtcp2=PATH],[Enable ngtcp2 usage])
+AS_HELP_STRING([--without-ngtcp2],[Disable ngtcp2 usage]),
+  [OPT_TCP2=$withval])
+case "$OPT_TCP2" in
+  no)
+    dnl --without-ngtcp2 option used
+    want_tcp2="no"
+    ;;
+  yes)
+    dnl --with-ngtcp2 option used without path
+    want_tcp2="default"
+    want_tcp2_path=""
+    ;;
+  *)
+    dnl --with-ngtcp2 option used with path
+    want_tcp2="yes"
+    want_tcp2_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+curl_tcp2_msg="no      (--with-ngtcp2)"
+if test X"$want_tcp2" != Xno; then
+  dnl backup the pre-ngtcp2 variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(libngtcp2, $want_tcp2_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_TCP2=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-l libngtcp2`
+    AC_MSG_NOTICE([-l is $LIB_TCP2])
+
+    CPP_TCP2=`CURL_EXPORT_PCDIR([$want_tcp2_path]) dnl
+      $PKGCONFIG --cflags-only-I libngtcp2`
+    AC_MSG_NOTICE([-I is $CPP_TCP2])
+
+    LD_TCP2=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-L libngtcp2`
+    AC_MSG_NOTICE([-L is $LD_TCP2])
+
+    LDFLAGS="$LDFLAGS $LD_TCP2"
+    CPPFLAGS="$CPPFLAGS $CPP_TCP2"
+    LIBS="$LIB_TCP2 $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_TCP2=`echo $LD_TCP2 | $SED -e 's/^-L//'`
+    fi
+    AC_CHECK_LIB(ngtcp2, ngtcp2_conn_client_new_versioned,
+      [
+       AC_CHECK_HEADERS(ngtcp2/ngtcp2.h,
+          NGTCP2_ENABLED=1
+          AC_DEFINE(USE_NGTCP2, 1, [if ngtcp2 is in use])
+          AC_SUBST(USE_NGTCP2, [1])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_TCP2"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_TCP2 to CURL_LIBRARY_PATH])
+       )
+      ],
+        dnl not found, revert back to clean variables
+        LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+    )
+
+  else
+    dnl no ngtcp2 pkg-config found, deal with it
+    if test X"$want_tcp2" != Xdefault; then
+      dnl To avoid link errors, we do not allow --with-ngtcp2 without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--with-ngtcp2 was specified but could not find ngtcp2 pkg-config file.])
+    fi
+  fi
+
+fi
+
+if test "x$NGTCP2_ENABLED" = "x1" -a "x$OPENSSL_ENABLED" = "x1"; then
+  dnl backup the pre-ngtcp2_crypto_openssl variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(libngtcp2_crypto_openssl, $want_tcp2_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGTCP2_CRYPTO_OPENSSL=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-l libngtcp2_crypto_openssl`
+    AC_MSG_NOTICE([-l is $LIB_NGTCP2_CRYPTO_OPENSSL])
+
+    CPP_NGTCP2_CRYPTO_OPENSSL=`CURL_EXPORT_PCDIR([$want_tcp2_path]) dnl
+      $PKGCONFIG --cflags-only-I libngtcp2_crypto_openssl`
+    AC_MSG_NOTICE([-I is $CPP_NGTCP2_CRYPTO_OPENSSL])
+
+    LD_NGTCP2_CRYPTO_OPENSSL=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-L libngtcp2_crypto_openssl`
+    AC_MSG_NOTICE([-L is $LD_NGTCP2_CRYPTO_OPENSSL])
+
+    LDFLAGS="$LDFLAGS $LD_NGTCP2_CRYPTO_OPENSSL"
+    CPPFLAGS="$CPPFLAGS $CPP_NGTCP2_CRYPTO_OPENSSL"
+    LIBS="$LIB_NGTCP2_CRYPTO_OPENSSL $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGTCP2_CRYPTO_OPENSSL=`echo $LD_NGTCP2_CRYPTO_OPENSSL | $SED -e 's/^-L//'`
+    fi
+    AC_CHECK_LIB(ngtcp2_crypto_openssl, ngtcp2_crypto_recv_client_initial_cb,
+      [
+       AC_CHECK_HEADERS(ngtcp2/ngtcp2_crypto.h,
+          NGTCP2_ENABLED=1
+          AC_DEFINE(USE_NGTCP2_CRYPTO_OPENSSL, 1, [if ngtcp2_crypto_openssl is in use])
+          AC_SUBST(USE_NGTCP2_CRYPTO_OPENSSL, [1])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGTCP2_CRYPTO_OPENSSL"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_NGTCP2_CRYPTO_OPENSSL to CURL_LIBRARY_PATH])
+       )
+      ],
+        dnl not found, revert back to clean variables
+        LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+    )
+
+  else
+    dnl no ngtcp2_crypto_openssl pkg-config found, deal with it
+    if test X"$want_tcp2" != Xdefault; then
+      dnl To avoid link errors, we do not allow --with-ngtcp2 without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--with-ngtcp2 was specified but could not find ngtcp2_crypto_openssl pkg-config file.])
+    fi
+  fi
+fi
+
+if test "x$NGTCP2_ENABLED" = "x1" -a "x$GNUTLS_ENABLED" = "x1"; then
+  dnl backup the pre-ngtcp2_crypto_gnutls variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(libngtcp2_crypto_gnutls, $want_tcp2_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGTCP2_CRYPTO_GNUTLS=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-l libngtcp2_crypto_gnutls`
+    AC_MSG_NOTICE([-l is $LIB_NGTCP2_CRYPTO_GNUTLS])
+
+    CPP_NGTCP2_CRYPTO_GNUTLS=`CURL_EXPORT_PCDIR([$want_tcp2_path]) dnl
+      $PKGCONFIG --cflags-only-I libngtcp2_crypto_gnutls`
+    AC_MSG_NOTICE([-I is $CPP_NGTCP2_CRYPTO_GNUTLS])
+
+    LD_NGTCP2_CRYPTO_GNUTLS=`CURL_EXPORT_PCDIR([$want_tcp2_path])
+      $PKGCONFIG --libs-only-L libngtcp2_crypto_gnutls`
+    AC_MSG_NOTICE([-L is $LD_NGTCP2_CRYPTO_GNUTLS])
+
+    LDFLAGS="$LDFLAGS $LD_NGTCP2_CRYPTO_GNUTLS"
+    CPPFLAGS="$CPPFLAGS $CPP_NGTCP2_CRYPTO_GNUTLS"
+    LIBS="$LIB_NGTCP2_CRYPTO_GNUTLS $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGTCP2_CRYPTO_GNUTLS=`echo $LD_NGTCP2_CRYPTO_GNUTLS | $SED -e 's/^-L//'`
+    fi
+    AC_CHECK_LIB(ngtcp2_crypto_gnutls, ngtcp2_crypto_recv_client_initial_cb,
+      [
+       AC_CHECK_HEADERS(ngtcp2/ngtcp2_crypto.h,
+          NGTCP2_ENABLED=1
+          AC_DEFINE(USE_NGTCP2_CRYPTO_GNUTLS, 1, [if ngtcp2_crypto_gnutls is in use])
+          AC_SUBST(USE_NGTCP2_CRYPTO_GNUTLS, [1])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGTCP2_CRYPTO_GNUTLS"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_NGTCP2_CRYPTO_GNUTLS to CURL_LIBRARY_PATH])
+       )
+      ],
+        dnl not found, revert back to clean variables
+        LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+    )
+
+  else
+    dnl no ngtcp2_crypto_gnutls pkg-config found, deal with it
+    if test X"$want_tcp2" != Xdefault; then
+      dnl To avoid link errors, we do not allow --with-ngtcp2 without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--with-ngtcp2 was specified but could not find ngtcp2_crypto_gnutls pkg-config file.])
+    fi
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for nghttp3 (HTTP/3 with ngtcp2)
+dnl **********************************************************************
+
+OPT_NGHTTP3="yes"
+
+if test "x$NGTCP2_ENABLED" = "x"; then
+  # without ngtcp2, nghttp3 is of no use for us
+  OPT_NGHTTP3="no"
+fi
+
+AC_ARG_WITH(nghttp3,
+AS_HELP_STRING([--with-nghttp3=PATH],[Enable nghttp3 usage])
+AS_HELP_STRING([--without-nghttp3],[Disable nghttp3 usage]),
+  [OPT_NGHTTP3=$withval])
+case "$OPT_NGHTTP3" in
+  no)
+    dnl --without-nghttp3 option used
+    want_nghttp3="no"
+    ;;
+  yes)
+    dnl --with-nghttp3 option used without path
+    want_nghttp3="default"
+    want_nghttp3_path=""
+    ;;
+  *)
+    dnl --with-nghttp3 option used with path
+    want_nghttp3="yes"
+    want_nghttp3_path="$withval/lib/pkgconfig"
+    ;;
+esac
+
+curl_http3_msg="no      (--with-nghttp3)"
+if test X"$want_nghttp3" != Xno; then
+  dnl backup the pre-nghttp3 variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(libnghttp3, $want_nghttp3_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_NGHTTP3=`CURL_EXPORT_PCDIR([$want_nghttp3_path])
+      $PKGCONFIG --libs-only-l libnghttp3`
+    AC_MSG_NOTICE([-l is $LIB_NGHTTP3])
+
+    CPP_NGHTTP3=`CURL_EXPORT_PCDIR([$want_nghttp3_path]) dnl
+      $PKGCONFIG --cflags-only-I libnghttp3`
+    AC_MSG_NOTICE([-I is $CPP_NGHTTP3])
+
+    LD_NGHTTP3=`CURL_EXPORT_PCDIR([$want_nghttp3_path])
+      $PKGCONFIG --libs-only-L libnghttp3`
+    AC_MSG_NOTICE([-L is $LD_NGHTTP3])
+
+    LDFLAGS="$LDFLAGS $LD_NGHTTP3"
+    CPPFLAGS="$CPPFLAGS $CPP_NGHTTP3"
+    LIBS="$LIB_NGHTTP3 $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_NGHTTP3=`echo $LD_NGHTTP3 | $SED -e 's/^-L//'`
+    fi
+    AC_CHECK_LIB(nghttp3, nghttp3_conn_client_new_versioned,
+      [
+       AC_CHECK_HEADERS(nghttp3/nghttp3.h,
+          curl_h3_msg="enabled (ngtcp2 + nghttp3)"
+          NGHTTP3_ENABLED=1
+          AC_DEFINE(USE_NGHTTP3, 1, [if nghttp3 is in use])
+          AC_SUBST(USE_NGHTTP3, [1])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_NGHTTP3"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_NGHTTP3 to CURL_LIBRARY_PATH])
+          experimental="$experimental HTTP3"
+       )
+      ],
+        dnl not found, revert back to clean variables
+        LDFLAGS=$CLEANLDFLAGS
+        CPPFLAGS=$CLEANCPPFLAGS
+        LIBS=$CLEANLIBS
+    )
+
+  else
+    dnl no nghttp3 pkg-config found, deal with it
+    if test X"$want_nghttp3" != Xdefault; then
+      dnl To avoid link errors, we do not allow --with-nghttp3 without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--with-nghttp3 was specified but could not find nghttp3 pkg-config file.])
+    fi
+  fi
+
+fi
+
+dnl **********************************************************************
+dnl Check for quiche (QUIC)
+dnl **********************************************************************
+
+OPT_QUICHE="no"
+
+if test "x$disable_http" = "xyes" -o "x$USE_NGTCP" = "x1"; then
+  # without HTTP or with ngtcp2, quiche is no use
+  OPT_QUICHE="no"
+fi
+
+AC_ARG_WITH(quiche,
+AS_HELP_STRING([--with-quiche=PATH],[Enable quiche usage])
+AS_HELP_STRING([--without-quiche],[Disable quiche usage]),
+  [OPT_QUICHE=$withval])
+case "$OPT_QUICHE" in
+  no)
+    dnl --without-quiche option used
+    want_quiche="no"
+    ;;
+  yes)
+    dnl --with-quiche option used without path
+    want_quiche="default"
+    want_quiche_path=""
+    ;;
+  *)
+    dnl --with-quiche option used with path
+    want_quiche="yes"
+    want_quiche_path="$withval"
+    ;;
+esac
+
+if test X"$want_quiche" != Xno; then
+
+  if test "$NGHTTP3_ENABLED" = 1; then
+    AC_MSG_ERROR([--with-quiche and --with-ngtcp2 are mutually exclusive])
+  fi
+
+  dnl backup the pre-quiche variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  CURL_CHECK_PKGCONFIG(quiche, $want_quiche_path)
+
+  if test "$PKGCONFIG" != "no" ; then
+    LIB_QUICHE=`CURL_EXPORT_PCDIR([$want_quiche_path])
+      $PKGCONFIG --libs-only-l quiche`
+    AC_MSG_NOTICE([-l is $LIB_QUICHE])
+
+    CPP_QUICHE=`CURL_EXPORT_PCDIR([$want_quiche_path]) dnl
+      $PKGCONFIG --cflags-only-I quiche`
+    AC_MSG_NOTICE([-I is $CPP_QUICHE])
+
+    LD_QUICHE=`CURL_EXPORT_PCDIR([$want_quiche_path])
+      $PKGCONFIG --libs-only-L quiche`
+    AC_MSG_NOTICE([-L is $LD_QUICHE])
+
+    LDFLAGS="$LDFLAGS $LD_QUICHE"
+    CPPFLAGS="$CPPFLAGS $CPP_QUICHE"
+    LIBS="$LIB_QUICHE $LIBS"
+
+    if test "x$cross_compiling" != "xyes"; then
+      DIR_QUICHE=`echo $LD_QUICHE | $SED -e 's/^-L//'`
+    fi
+    AC_CHECK_LIB(quiche, quiche_connect,
+      [
+       AC_CHECK_HEADERS(quiche.h,
+          experimental="$experimental HTTP3"
+          AC_MSG_NOTICE([HTTP3 support is experimental])
+          curl_h3_msg="enabled (quiche)"
+          QUICHE_ENABLED=1
+          AC_DEFINE(USE_QUICHE, 1, [if quiche is in use])
+          AC_SUBST(USE_QUICHE, [1])
+          AC_CHECK_FUNCS([quiche_conn_set_qlog_fd])
+          CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_QUICHE"
+          export CURL_LIBRARY_PATH
+          AC_MSG_NOTICE([Added $DIR_QUICHE to CURL_LIBRARY_PATH]),
+          [],
+          [
+AC_INCLUDES_DEFAULT
+#include 
+          ]
+       )
+      ],
+        dnl not found, revert back to clean variables
+        AC_MSG_ERROR([couldn't use quiche])
+    )
+  else
+    dnl no quiche pkg-config found, deal with it
+    if test X"$want_quiche" != Xdefault; then
+      dnl To avoid link errors, we do not allow --with-quiche without
+      dnl a pkgconfig file
+      AC_MSG_ERROR([--with-quiche was specified but could not find quiche pkg-config file.])
+    fi
+  fi
+fi
+
+dnl **********************************************************************
+dnl Check for msh3 (QUIC)
+dnl **********************************************************************
+
+OPT_MSH3="no"
+
+if test "x$disable_http" = "xyes" -o "x$USE_NGTCP" = "x1"; then
+  # without HTTP or with ngtcp2, msh3 is no use
+  OPT_MSH3="no"
+fi
+
+AC_ARG_WITH(msh3,
+AS_HELP_STRING([--with-msh3=PATH],[Enable msh3 usage])
+AS_HELP_STRING([--without-msh3],[Disable msh3 usage]),
+  [OPT_MSH3=$withval])
+case "$OPT_MSH3" in
+  no)
+    dnl --without-msh3 option used
+    want_msh3="no"
+    ;;
+  yes)
+    dnl --with-msh3 option used without path
+    want_msh3="default"
+    want_msh3_path=""
+    ;;
+  *)
+    dnl --with-msh3 option used with path
+    want_msh3="yes"
+    want_msh3_path="$withval"
+    ;;
+esac
+
+if test X"$want_msh3" != Xno; then
+
+  if test "$NGHTTP3_ENABLED" = 1; then
+    AC_MSG_ERROR([--with-msh3 and --with-ngtcp2 are mutually exclusive])
+  fi
+
+  dnl backup the pre-msh3 variables
+  CLEANLDFLAGS="$LDFLAGS"
+  CLEANCPPFLAGS="$CPPFLAGS"
+  CLEANLIBS="$LIBS"
+
+  if test -n "$want_msh3_path"; then
+    LD_MSH3="-L$want_msh3_path/lib"
+    CPP_MSH3="-I$want_msh3_path/include"
+    DIR_MSH3="$want_msh3_path/lib"
+    LDFLAGS="$LDFLAGS $LD_MSH3"
+    CPPFLAGS="$CPPFLAGS $CPP_MSH3"
+  fi
+  LIBS="-lmsh3 $LIBS"
+
+  AC_CHECK_LIB(msh3, MsH3ApiOpen,
+    [
+    AC_CHECK_HEADERS(msh3.h,
+        curl_h3_msg="enabled (msh3)"
+        MSH3_ENABLED=1
+        AC_DEFINE(USE_MSH3, 1, [if msh3 is in use])
+        AC_SUBST(USE_MSH3, [1])
+        CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$DIR_MSH3"
+        export CURL_LIBRARY_PATH
+        AC_MSG_NOTICE([Added $DIR_MSH3 to CURL_LIBRARY_PATH]),
+        experimental="$experimental HTTP3"
+     )
+    ],
+      dnl not found, revert back to clean variables
+      LDFLAGS=$CLEANLDFLAGS
+      CPPFLAGS=$CLEANCPPFLAGS
+      LIBS=$CLEANLIBS
+  )
+fi
+
+dnl **********************************************************************
+dnl Check for zsh completion path
+dnl **********************************************************************
+
+OPT_ZSH_FPATH=default
+AC_ARG_WITH(zsh-functions-dir,
+AS_HELP_STRING([--with-zsh-functions-dir=PATH],[Install zsh completions to PATH])
+AS_HELP_STRING([--without-zsh-functions-dir],[Do not install zsh completions]),
+  [OPT_ZSH_FPATH=$withval])
+case "$OPT_ZSH_FPATH" in
+  no)
+    dnl --without-zsh-functions-dir option used
+    ;;
+  default|yes)
+    dnl --with-zsh-functions-dir option used without path
+    ZSH_FUNCTIONS_DIR="$datarootdir/zsh/site-functions"
+    AC_SUBST(ZSH_FUNCTIONS_DIR)
+    ;;
+  *)
+    dnl --with-zsh-functions-dir option used with path
+    ZSH_FUNCTIONS_DIR="$withval"
+    AC_SUBST(ZSH_FUNCTIONS_DIR)
+    ;;
+esac
+
+dnl **********************************************************************
+dnl Check for fish completion path
+dnl **********************************************************************
+
+OPT_FISH_FPATH=default
+AC_ARG_WITH(fish-functions-dir,
+AS_HELP_STRING([--with-fish-functions-dir=PATH],[Install fish completions to PATH])
+AS_HELP_STRING([--without-fish-functions-dir],[Do not install fish completions]),
+  [OPT_FISH_FPATH=$withval])
+case "$OPT_FISH_FPATH" in
+  no)
+    dnl --without-fish-functions-dir option used
+    ;;
+  default|yes)
+    dnl --with-fish-functions-dir option used without path
+    CURL_CHECK_PKGCONFIG(fish)
+    if test "$PKGCONFIG" != "no" ; then
+      FISH_FUNCTIONS_DIR="$($PKGCONFIG --variable completionsdir fish)"
+    else
+      FISH_FUNCTIONS_DIR="$datarootdir/fish/vendor_completions.d"
+    fi
+    AC_SUBST(FISH_FUNCTIONS_DIR)
+    ;;
+  *)
+    dnl --with-fish-functions-dir option used with path
+    FISH_FUNCTIONS_DIR="$withval"
+    AC_SUBST(FISH_FUNCTIONS_DIR)
+    ;;
+esac
+
+CURL_CHECK_HEADER_MALLOC
+CURL_CHECK_HEADER_MEMORY
+
+dnl Now check for the very most basic headers. Then we can use these
+dnl ones as default-headers when checking for the rest!
+AC_CHECK_HEADERS(
+        sys/types.h \
+        sys/time.h \
+        sys/select.h \
+        sys/socket.h \
+        sys/ioctl.h \
+        sys/uio.h \
+        assert.h \
+        unistd.h \
+        stdlib.h \
+        arpa/inet.h \
+        net/if.h \
+        netinet/in.h \
+	netinet/in6.h \
+        sys/un.h \
+        linux/tcp.h \
+        netinet/tcp.h \
+        netdb.h \
+        sys/sockio.h \
+        sys/stat.h \
+        sys/param.h \
+        termios.h \
+        termio.h \
+        fcntl.h \
+        alloca.h \
+        io.h \
+        pwd.h \
+        utime.h \
+        sys/utime.h \
+        sys/poll.h \
+        poll.h \
+        socket.h \
+        sys/resource.h \
+        libgen.h \
+        locale.h \
+        errno.h \
+        stdbool.h \
+        arpa/tftp.h \
+        sys/filio.h \
+        sys/wait.h \
+        setjmp.h,
+dnl to do if not found
+[],
+dnl to do if found
+[],
+dnl default includes
+[
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include 
+#elif defined(HAVE_UNISTD_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include 
+#endif
+#ifdef HAVE_NETINET_IN6_H
+#include 
+#endif
+#ifdef HAVE_SYS_UN_H
+#include 
+#endif
+]
+)
+
+
+dnl Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+CURL_CHECK_VARIADIC_MACROS
+AC_TYPE_SIZE_T
+
+CURL_CHECK_STRUCT_TIMEVAL
+CURL_VERIFY_RUNTIMELIBS
+
+AX_COMPILE_CHECK_SIZEOF(size_t)
+AX_COMPILE_CHECK_SIZEOF(long)
+AX_COMPILE_CHECK_SIZEOF(int)
+AX_COMPILE_CHECK_SIZEOF(short)
+AX_COMPILE_CHECK_SIZEOF(time_t)
+AX_COMPILE_CHECK_SIZEOF(off_t)
+
+o=$CPPFLAGS
+CPPFLAGS="-I$srcdir/include $CPPFLAGS"
+AX_COMPILE_CHECK_SIZEOF(curl_off_t, [
+#include 
+])
+CPPFLAGS=$o
+
+AC_CHECK_TYPE(long long,
+   [AC_DEFINE(HAVE_LONGLONG, 1,
+      [Define to 1 if the compiler supports the 'long long' data type.])]
+   longlong="yes"
+)
+
+if test "xyes" = "x$longlong"; then
+  AC_MSG_CHECKING([if numberLL works])
+  AC_COMPILE_IFELSE([
+    AC_LANG_PROGRAM([[
+    ]],[[
+      long long val = 1000LL;
+    ]])
+  ],[
+    AC_MSG_RESULT([yes])
+    AC_DEFINE(HAVE_LL, 1, [if your compiler supports LL])
+  ],[
+    AC_MSG_RESULT([no])
+  ])
+fi
+
+
+# check for ssize_t
+AC_CHECK_TYPE(ssize_t, ,
+   AC_DEFINE(ssize_t, int, [the signed version of size_t]))
+
+# check for bool type
+AC_CHECK_TYPE([bool],[
+  AC_DEFINE(HAVE_BOOL_T, 1,
+    [Define to 1 if bool is an available type.])
+], ,[
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_STDBOOL_H
+#include 
+#endif
+])
+
+# check for sa_family_t
+AC_CHECK_TYPE(sa_family_t,
+   AC_DEFINE(CURL_SA_FAMILY_T, sa_family_t, [IP address type in sockaddr]),
+   [
+   # The windows name?
+   AC_CHECK_TYPE(ADDRESS_FAMILY,
+     AC_DEFINE(CURL_SA_FAMILY_T, ADDRESS_FAMILY, [IP address type in sockaddr]),
+     AC_DEFINE(CURL_SA_FAMILY_T, unsigned short, [IP address type in sockaddr]),
+    [
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+    ])
+   ],
+[
+#ifdef HAVE_SYS_SOCKET_H
+#include 
+#endif
+])
+
+# check for suseconds_t
+AC_CHECK_TYPE([suseconds_t],[
+  AC_DEFINE(HAVE_SUSECONDS_T, 1,
+    [Define to 1 if suseconds_t is an available type.])
+], ,[
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include 
+#endif
+])
+
+AC_MSG_CHECKING([if time_t is unsigned])
+CURL_RUN_IFELSE(
+  [
+  #include 
+  #include 
+  time_t t = -1;
+  return (t > 0);
+  ],[
+  AC_MSG_RESULT([yes])
+  AC_DEFINE(HAVE_TIME_T_UNSIGNED, 1, [Define this if time_t is unsigned])
+],[
+  AC_MSG_RESULT([no])
+],[
+  dnl cross-compiling, most systems are unsigned
+  AC_MSG_RESULT([no])
+])
+
+CURL_CONFIGURE_PULL_SYS_POLL
+
+TYPE_IN_ADDR_T
+
+TYPE_SOCKADDR_STORAGE
+
+CURL_CHECK_FUNC_SELECT
+
+CURL_CHECK_FUNC_RECV
+CURL_CHECK_FUNC_SEND
+CURL_CHECK_MSG_NOSIGNAL
+
+CURL_CHECK_FUNC_ALARM
+CURL_CHECK_FUNC_BASENAME
+CURL_CHECK_FUNC_CLOSESOCKET
+CURL_CHECK_FUNC_CLOSESOCKET_CAMEL
+CURL_CHECK_FUNC_CONNECT
+CURL_CHECK_FUNC_FCNTL
+CURL_CHECK_FUNC_FREEADDRINFO
+CURL_CHECK_FUNC_FSETXATTR
+CURL_CHECK_FUNC_FTRUNCATE
+CURL_CHECK_FUNC_GETADDRINFO
+CURL_CHECK_FUNC_GETHOSTBYNAME
+CURL_CHECK_FUNC_GETHOSTBYNAME_R
+CURL_CHECK_FUNC_GETHOSTNAME
+CURL_CHECK_FUNC_GETPEERNAME
+CURL_CHECK_FUNC_GETSOCKNAME
+CURL_CHECK_FUNC_IF_NAMETOINDEX
+CURL_CHECK_FUNC_GETIFADDRS
+CURL_CHECK_FUNC_GMTIME_R
+CURL_CHECK_FUNC_INET_NTOP
+CURL_CHECK_FUNC_INET_PTON
+CURL_CHECK_FUNC_IOCTL
+CURL_CHECK_FUNC_IOCTLSOCKET
+CURL_CHECK_FUNC_IOCTLSOCKET_CAMEL
+CURL_CHECK_FUNC_LOCALTIME_R
+CURL_CHECK_FUNC_MEMRCHR
+CURL_CHECK_FUNC_POLL
+CURL_CHECK_FUNC_SETSOCKOPT
+CURL_CHECK_FUNC_SIGACTION
+CURL_CHECK_FUNC_SIGINTERRUPT
+CURL_CHECK_FUNC_SIGNAL
+CURL_CHECK_FUNC_SIGSETJMP
+CURL_CHECK_FUNC_SOCKET
+CURL_CHECK_FUNC_SOCKETPAIR
+CURL_CHECK_FUNC_STRCASECMP
+CURL_CHECK_FUNC_STRCMPI
+CURL_CHECK_FUNC_STRDUP
+CURL_CHECK_FUNC_STRERROR_R
+CURL_CHECK_FUNC_STRICMP
+CURL_CHECK_FUNC_STRNCMPI
+CURL_CHECK_FUNC_STRNICMP
+CURL_CHECK_FUNC_STRSTR
+CURL_CHECK_FUNC_STRTOK_R
+CURL_CHECK_FUNC_STRTOLL
+CURL_CHECK_FUNC_WRITEV
+
+case $host in
+  *msdosdjgpp)
+     ac_cv_func_pipe=no
+     skipcheck_pipe=yes
+     AC_MSG_NOTICE([skip check for pipe on msdosdjgpp])
+    ;;
+esac
+
+AC_CHECK_DECLS([getpwuid_r], [], [AC_DEFINE(HAVE_DECL_GETPWUID_R_MISSING, 1, "Set if getpwuid_r() declaration is missing")],
+        [[#include 
+          #include ]])
+
+
+AC_CHECK_FUNCS([fnmatch \
+  geteuid \
+  getpass_r \
+  getppid \
+  getpwuid \
+  getpwuid_r \
+  getrlimit \
+  gettimeofday \
+  if_nametoindex \
+  mach_absolute_time \
+  pipe \
+  setlocale \
+  setmode \
+  setrlimit \
+  usleep \
+  utime \
+  utimes
+],[
+],[
+  func="$ac_func"
+  eval skipcheck=\$skipcheck_$func
+  if test "x$skipcheck" != "xyes"; then
+    AC_MSG_CHECKING([deeper for $func])
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([[
+      ]],[[
+        $func ();
+      ]])
+    ],[
+      AC_MSG_RESULT([yes])
+      eval "ac_cv_func_$func=yes"
+      AC_DEFINE_UNQUOTED(XC_SH_TR_CPP([HAVE_$func]), [1],
+        [Define to 1 if you have the $func function.])
+    ],[
+      AC_MSG_RESULT([but still no])
+    ])
+  fi
+])
+
+CURL_CHECK_NONBLOCKING_SOCKET
+
+dnl ************************************************************
+dnl nroff tool stuff
+dnl
+
+AC_PATH_PROG( PERL, perl, ,
+  $PATH:/usr/local/bin/perl:/usr/bin/:/usr/local/bin )
+AC_SUBST(PERL)
+
+AC_PATH_PROGS( NROFF, gnroff nroff, ,
+  $PATH:/usr/bin/:/usr/local/bin )
+AC_SUBST(NROFF)
+
+if test -n "$NROFF"; then
+  dnl only check for nroff options if an nroff command was found
+
+  AC_MSG_CHECKING([how to use *nroff to get plain text from man pages])
+  MANOPT="-man"
+  mancheck=`echo foo | $NROFF $MANOPT 2>/dev/null`
+  if test -z "$mancheck"; then
+    MANOPT="-mandoc"
+   mancheck=`echo foo | $NROFF $MANOPT 2>/dev/null`
+    if test -z "$mancheck"; then
+      MANOPT=""
+      AC_MSG_RESULT([failed])
+      AC_MSG_WARN([found no *nroff option to get plaintext from man pages])
+    else
+      AC_MSG_RESULT([$MANOPT])
+    fi
+  else
+    AC_MSG_RESULT([$MANOPT])
+  fi
+  AC_SUBST(MANOPT)
+fi
+
+if test -z "$MANOPT"
+then
+  dnl if no nroff tool was found, or no option that could convert man pages
+  dnl was found, then disable the built-in manual stuff
+  AC_MSG_WARN([disabling built-in manual])
+  USE_MANUAL="no";
+fi
+
+dnl *************************************************************************
+dnl If the manual variable still is set, then we go with providing a built-in
+dnl manual
+
+if test "$USE_MANUAL" = "1"; then
+  AC_DEFINE(USE_MANUAL, 1, [If you want to build curl with the built-in manual])
+  curl_manual_msg="enabled"
+fi
+
+dnl set variable for use in automakefile(s)
+AM_CONDITIONAL(USE_MANUAL, test x"$USE_MANUAL" = x1)
+
+CURL_CHECK_LIB_ARES
+
+if test "x$curl_cv_native_windows" != "xyes" &&
+   test "x$enable_shared" = "xyes"; then
+  build_libhostname=yes
+else
+  build_libhostname=no
+fi
+AM_CONDITIONAL(BUILD_LIBHOSTNAME, test x$build_libhostname = xyes)
+
+if test "x$want_ares" != xyes; then
+  CURL_CHECK_OPTION_THREADED_RESOLVER
+fi
+
+dnl ************************************************************
+dnl disable POSIX threads
+dnl
+AC_MSG_CHECKING([whether to use POSIX threads for threaded resolver])
+AC_ARG_ENABLE(pthreads,
+AS_HELP_STRING([--enable-pthreads],
+               [Enable POSIX threads (default for threaded resolver)])
+AS_HELP_STRING([--disable-pthreads],[Disable POSIX threads]),
+[ case "$enableval" in
+  no)  AC_MSG_RESULT(no)
+       want_pthreads=no
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       want_pthreads=yes
+       ;;
+  esac ], [
+       AC_MSG_RESULT(auto)
+       want_pthreads=auto
+       ]
+)
+
+dnl turn off pthreads if rt is disabled
+if test "$want_pthreads" != "no"; then
+  if test "$want_pthreads" = "yes" && test "$dontwant_rt" = "yes"; then
+    AC_MSG_ERROR([options --enable-pthreads and --disable-rt are mutually exclusive])
+  fi
+  if test "$dontwant_rt" != "no"; then
+    dnl if --enable-pthreads was explicit then warn it's being ignored
+    if test "$want_pthreads" = "yes"; then
+      AC_MSG_WARN([--enable-pthreads Ignored since librt is disabled.])
+    fi
+    want_pthreads=no
+  fi
+fi
+
+dnl turn off pthreads if no threaded resolver
+if test "$want_pthreads" != "no" && test "$want_thres" != "yes"; then
+  want_pthreads=no
+fi
+
+dnl detect pthreads
+if test "$want_pthreads" != "no"; then
+  AC_CHECK_HEADER(pthread.h,
+    [ AC_DEFINE(HAVE_PTHREAD_H, 1, [if you have ])
+      save_CFLAGS="$CFLAGS"
+      dnl When statically linking against boringssl, -lpthread is added to LIBS.
+      dnl Make sure to that this does not pass the check below, we really want
+      dnl -pthread in CFLAGS as recommended for GCC. This also ensures that
+      dnl lib1541 and lib1565 tests are built with these options. Otherwise
+      dnl they fail the build since tests/libtest/Makefile.am clears LIBS.
+      save_LIBS="$LIBS"
+
+      LIBS=
+      dnl Check for libc variants without a separate pthread lib like bionic
+      AC_CHECK_FUNC(pthread_create, [USE_THREADS_POSIX=1] )
+      LIBS="$save_LIBS"
+
+      dnl on HPUX, life is more complicated...
+      case $host in
+      *-hp-hpux*)
+         dnl it doesn't actually work without -lpthread
+         USE_THREADS_POSIX=""
+         ;;
+      *)
+         ;;
+      esac
+
+      dnl if it wasn't found without lib, search for it in pthread lib
+      if test "$USE_THREADS_POSIX" != "1"
+      then
+        case $host in
+        *-ibm-aix*)
+           dnl Check if compiler is xlC
+           COMPILER_VERSION=`"$CC" -qversion 2>/dev/null`
+           if test x"$COMPILER_VERSION" = "x"; then
+             CFLAGS="$CFLAGS -pthread"
+           else
+             CFLAGS="$CFLAGS -qthreaded"
+           fi
+           ;;
+        *)
+           CFLAGS="$CFLAGS -pthread"
+           ;;
+        esac
+        # assign PTHREAD for pkg-config use
+        PTHREAD=" -pthread"
+        AC_CHECK_LIB(pthread, pthread_create,
+                     [USE_THREADS_POSIX=1],
+                     [ CFLAGS="$save_CFLAGS"])
+      fi
+
+      if test "x$USE_THREADS_POSIX" = "x1"
+      then
+        AC_DEFINE(USE_THREADS_POSIX, 1, [if you want POSIX threaded DNS lookup])
+        curl_res_msg="POSIX threaded"
+      fi
+  ])
+fi
+
+dnl threaded resolver check
+if test "$want_thres" = "yes" && test "x$USE_THREADS_POSIX" != "x1"; then
+  if test "$want_pthreads" = "yes"; then
+    AC_MSG_ERROR([--enable-pthreads but pthreads was not found])
+  fi
+  dnl If native Windows fallback on Win32 threads since no POSIX threads
+  if test "$curl_cv_native_windows" = "yes"; then
+    USE_THREADS_WIN32=1
+    AC_DEFINE(USE_THREADS_WIN32, 1, [if you want Win32 threaded DNS lookup])
+    curl_res_msg="Win32 threaded"
+  else
+    AC_MSG_ERROR([Threaded resolver enabled but no thread library found])
+  fi
+fi
+
+CURL_CONVERT_INCLUDE_TO_ISYSTEM
+
+dnl ************************************************************
+dnl disable verbose text strings
+dnl
+AC_MSG_CHECKING([whether to enable verbose strings])
+AC_ARG_ENABLE(verbose,
+AS_HELP_STRING([--enable-verbose],[Enable verbose strings])
+AS_HELP_STRING([--disable-verbose],[Disable verbose strings]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_VERBOSE_STRINGS, 1, [to disable verbose strings])
+       curl_verbose_msg="no"
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl enable SSPI support
+dnl
+AC_MSG_CHECKING([whether to enable SSPI support (Windows native builds only)])
+AC_ARG_ENABLE(sspi,
+AS_HELP_STRING([--enable-sspi],[Enable SSPI])
+AS_HELP_STRING([--disable-sspi],[Disable SSPI]),
+[ case "$enableval" in
+  yes)
+       if test "$curl_cv_native_windows" = "yes"; then
+         AC_MSG_RESULT(yes)
+         AC_DEFINE(USE_WINDOWS_SSPI, 1, [to enable SSPI support])
+         AC_SUBST(USE_WINDOWS_SSPI, [1])
+         curl_sspi_msg="enabled"
+       else
+         AC_MSG_RESULT(no)
+         AC_MSG_WARN([--enable-sspi Ignored. Only supported on native Windows builds.])
+       fi
+       ;;
+  *)
+       if test "x$SCHANNEL_ENABLED" = "x1"; then
+         # --with-schannel implies --enable-sspi
+         AC_MSG_RESULT(yes)
+       else
+         AC_MSG_RESULT(no)
+       fi
+       ;;
+  esac ],
+       if test "x$SCHANNEL_ENABLED" = "x1"; then
+         # --with-schannel implies --enable-sspi
+         AC_MSG_RESULT(yes)
+       else
+         AC_MSG_RESULT(no)
+       fi
+)
+
+dnl ************************************************************
+dnl disable cryptographic authentication
+dnl
+AC_MSG_CHECKING([whether to enable cryptographic authentication methods])
+AC_ARG_ENABLE(crypto-auth,
+AS_HELP_STRING([--enable-crypto-auth],[Enable cryptographic authentication])
+AS_HELP_STRING([--disable-crypto-auth],[Disable cryptographic authentication]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_CRYPTO_AUTH, 1, [to disable cryptographic authentication])
+       CURL_DISABLE_CRYPTO_AUTH=1
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable NTLM support
+dnl
+AC_MSG_CHECKING([whether to support NTLM])
+AC_ARG_ENABLE(ntlm,
+AS_HELP_STRING([--enable-ntlm],[Enable NTLM support])
+AS_HELP_STRING([--disable-ntlm],[Disable NTLM support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_NTLM, 1, [to disable NTLM support])
+       CURL_DISABLE_NTLM=1
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+CURL_CHECK_OPTION_NTLM_WB
+
+CURL_CHECK_NTLM_WB
+
+dnl ************************************************************
+dnl disable TLS-SRP authentication
+dnl
+AC_MSG_CHECKING([whether to enable TLS-SRP authentication])
+AC_ARG_ENABLE(tls-srp,
+AS_HELP_STRING([--enable-tls-srp],[Enable TLS-SRP authentication])
+AS_HELP_STRING([--disable-tls-srp],[Disable TLS-SRP authentication]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       want_tls_srp=no
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       want_tls_srp=yes
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+       want_tls_srp=yes
+)
+
+if test "$want_tls_srp" = "yes" && ( test "x$HAVE_GNUTLS_SRP" = "x1" || test "x$HAVE_OPENSSL_SRP" = "x1") ; then
+   AC_DEFINE(USE_TLS_SRP, 1, [Use TLS-SRP authentication])
+   USE_TLS_SRP=1
+   curl_tls_srp_msg="enabled"
+fi
+
+dnl ************************************************************
+dnl disable Unix domain sockets support
+dnl
+AC_MSG_CHECKING([whether to enable Unix domain sockets])
+AC_ARG_ENABLE(unix-sockets,
+AS_HELP_STRING([--enable-unix-sockets],[Enable Unix domain sockets])
+AS_HELP_STRING([--disable-unix-sockets],[Disable Unix domain sockets]),
+[ case "$enableval" in
+  no)  AC_MSG_RESULT(no)
+       want_unix_sockets=no
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       want_unix_sockets=yes
+       ;;
+  esac ], [
+       AC_MSG_RESULT(auto)
+       want_unix_sockets=auto
+       ]
+)
+if test "x$want_unix_sockets" != "xno"; then
+  AC_CHECK_MEMBER([struct sockaddr_un.sun_path], [
+    AC_DEFINE(USE_UNIX_SOCKETS, 1, [Use Unix domain sockets])
+    AC_SUBST(USE_UNIX_SOCKETS, [1])
+    curl_unix_sockets_msg="enabled"
+  ], [
+    if test "x$want_unix_sockets" = "xyes"; then
+      AC_MSG_ERROR([--enable-unix-sockets is not available on this platform!])
+    fi
+  ], [
+    #include 
+  ])
+fi
+
+dnl ************************************************************
+dnl disable cookies support
+dnl
+AC_MSG_CHECKING([whether to support cookies])
+AC_ARG_ENABLE(cookies,
+AS_HELP_STRING([--enable-cookies],[Enable cookies support])
+AS_HELP_STRING([--disable-cookies],[Disable cookies support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_COOKIES, 1, [to disable cookies support])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable socketpair
+dnl
+AC_MSG_CHECKING([whether to support socketpair])
+AC_ARG_ENABLE(socketpair,
+AS_HELP_STRING([--enable-socketpair],[Enable socketpair support])
+AS_HELP_STRING([--disable-socketpair],[Disable socketpair support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_SOCKETPAIR, 1, [to disable socketpair support])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable HTTP authentication support
+dnl
+AC_MSG_CHECKING([whether to support HTTP authentication])
+AC_ARG_ENABLE(http-auth,
+AS_HELP_STRING([--enable-http-auth],[Enable HTTP authentication support])
+AS_HELP_STRING([--disable-http-auth],[Disable HTTP authentication support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_HTTP_AUTH, 1, [disable HTTP authentication])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable DoH support
+dnl
+AC_MSG_CHECKING([whether to support DoH])
+AC_ARG_ENABLE(doh,
+AS_HELP_STRING([--enable-doh],[Enable DoH support])
+AS_HELP_STRING([--disable-doh],[Disable DoH support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_DOH, 1, [disable DoH])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable mime API support
+dnl
+AC_MSG_CHECKING([whether to support the MIME API])
+AC_ARG_ENABLE(mime,
+AS_HELP_STRING([--enable-mime],[Enable mime API support])
+AS_HELP_STRING([--disable-mime],[Disable mime API support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_MIME, 1, [disable mime API])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable date parsing
+dnl
+AC_MSG_CHECKING([whether to support date parsing])
+AC_ARG_ENABLE(dateparse,
+AS_HELP_STRING([--enable-dateparse],[Enable date parsing])
+AS_HELP_STRING([--disable-dateparse],[Disable date parsing]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_PARSEDATE, 1, [disable date parsing])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable netrc
+dnl
+AC_MSG_CHECKING([whether to support netrc parsing])
+AC_ARG_ENABLE(netrc,
+AS_HELP_STRING([--enable-netrc],[Enable netrc parsing])
+AS_HELP_STRING([--disable-netrc],[Disable netrc parsing]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_NETRC, 1, [disable netrc parsing])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable progress-meter
+dnl
+AC_MSG_CHECKING([whether to support progress-meter])
+AC_ARG_ENABLE(progress-meter,
+AS_HELP_STRING([--enable-progress-meter],[Enable progress-meter])
+AS_HELP_STRING([--disable-progress-meter],[Disable progress-meter]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_PROGRESS_METER, 1, [disable progress-meter])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable shuffle DNS support
+dnl
+AC_MSG_CHECKING([whether to support DNS shuffling])
+AC_ARG_ENABLE(dnsshuffle,
+AS_HELP_STRING([--enable-dnsshuffle],[Enable DNS shuffling])
+AS_HELP_STRING([--disable-dnsshuffle],[Disable DNS shuffling]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_SHUFFLE_DNS, 1, [disable DNS shuffling])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl disable the curl_easy_options API
+dnl
+AC_MSG_CHECKING([whether to support curl_easy_option*])
+AC_ARG_ENABLE(get-easy-options,
+AS_HELP_STRING([--enable-get-easy-options],[Enable curl_easy_options])
+AS_HELP_STRING([--disable-get-easy-options],[Disable curl_easy_options]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_GETOPTIONS, 1, [to disable curl_easy_options])
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl switch on/off alt-svc
+dnl
+AC_MSG_CHECKING([whether to support alt-svc])
+AC_ARG_ENABLE(alt-svc,
+AS_HELP_STRING([--enable-alt-svc],[Enable alt-svc support])
+AS_HELP_STRING([--disable-alt-svc],[Disable alt-svc support]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       AC_DEFINE(CURL_DISABLE_ALTSVC, 1, [disable alt-svc])
+       curl_altsvc_msg="no";
+       enable_altsvc="no"
+       ;;
+  *) AC_MSG_RESULT(yes)
+       ;;
+  esac ],
+       AC_MSG_RESULT(yes)
+)
+
+dnl ************************************************************
+dnl switch on/off headers-api
+dnl
+AC_MSG_CHECKING([whether to support headers-api])
+AC_ARG_ENABLE(headers-api,
+AS_HELP_STRING([--enable-headers-api],[Enable headers-api support])
+AS_HELP_STRING([--disable-headers-api],[Disable headers-api support]),
+[ case "$enableval" in
+  yes)
+       AC_MSG_RESULT(yes)
+       AC_DEFINE(USE_HEADERS_API, 1, [enable headers-api])
+       curl_headers_msg="enabled";
+       ;;
+  *) AC_MSG_RESULT(no)
+       ;;
+  esac ],
+       AC_MSG_RESULT(no)
+)
+
+dnl only check for HSTS if there's SSL present
+if test -n "$SSL_ENABLED"; then
+
+  dnl ************************************************************
+  dnl switch on/off hsts
+  dnl
+  AC_MSG_CHECKING([whether to support HSTS])
+  AC_ARG_ENABLE(hsts,
+  AS_HELP_STRING([--enable-hsts],[Enable HSTS support])
+  AS_HELP_STRING([--disable-hsts],[Disable HSTS support]),
+  [ case "$enableval" in
+    no)
+       AC_MSG_RESULT(no)
+       hsts="no"
+       ;;
+    *) AC_MSG_RESULT(yes)
+       ;;
+    esac ],
+       AC_MSG_RESULT($hsts)
+  )
+else
+  AC_MSG_NOTICE([disables HSTS due to lack of SSL])
+  hsts="no"
+fi
+
+if test "x$hsts" != "xyes"; then
+  curl_hsts_msg="no      (--enable-hsts)";
+  AC_DEFINE(CURL_DISABLE_HSTS, 1, [disable alt-svc])
+fi
+
+dnl *************************************************************
+dnl check whether ECH support, if desired, is actually available
+dnl
+if test "x$want_ech" != "xno"; then
+  AC_MSG_CHECKING([whether ECH support is available])
+
+  dnl assume NOT and look for sufficient condition
+  ECH_ENABLED=0
+  ECH_SUPPORT=''
+
+  dnl OpenSSL with a chosen ECH function should be enough
+  dnl so more exhaustive checking seems unnecessary for now
+  if test "x$OPENSSL_ENABLED" = "x1"; then
+    AC_CHECK_FUNCS(SSL_get_ech_status,
+      ECH_SUPPORT="ECH support available (OpenSSL with SSL_get_ech_status)"
+      ECH_ENABLED=1)
+
+  dnl add 'elif' chain here for additional implementations
+  fi
+
+  dnl now deal with whatever we found
+  if test "x$ECH_ENABLED" = "x1"; then
+    AC_DEFINE(USE_ECH, 1, [if ECH support is available])
+    AC_MSG_RESULT($ECH_SUPPORT)
+    experimental="$experimental ECH"
+  else
+    AC_MSG_ERROR([--enable-ech ignored: No ECH support found])
+  fi
+fi
+
+dnl ************************************************************
+dnl hiding of library internal symbols
+dnl
+CURL_CONFIGURE_SYMBOL_HIDING
+
+dnl
+dnl All the library dependencies put into $LIB apply to libcurl only.
+dnl
+LIBCURL_LIBS="$LIBS$PTHREAD"
+
+AC_SUBST(LIBCURL_LIBS)
+AC_SUBST(CURL_NETWORK_LIBS)
+AC_SUBST(CURL_NETWORK_AND_TIME_LIBS)
+
+dnl BLANK_AT_MAKETIME may be used in our Makefile.am files to blank
+dnl LIBS variable used in generated makefile at makefile processing
+dnl time. Doing this functionally prevents LIBS from being used for
+dnl all link targets in given makefile.
+BLANK_AT_MAKETIME=
+AC_SUBST(BLANK_AT_MAKETIME)
+
+AM_CONDITIONAL(CROSSCOMPILING, test x$cross_compiling = xyes)
+
+dnl yes or no
+ENABLE_SHARED="$enable_shared"
+AC_SUBST(ENABLE_SHARED)
+
+dnl to let curl-config output the static libraries correctly
+ENABLE_STATIC="$enable_static"
+AC_SUBST(ENABLE_STATIC)
+
+dnl merge the pkg-config Libs.private field into Libs when static-only
+if test "x$enable_shared" = "xno"; then
+  LIBCURL_NO_SHARED=$LIBCURL_LIBS
+else
+  LIBCURL_NO_SHARED=
+fi
+AC_SUBST(LIBCURL_NO_SHARED)
+
+dnl
+dnl For keeping supported features and protocols also in pkg-config file
+dnl since it is more cross-compile friendly than curl-config
+dnl
+
+if test "x$OPENSSL_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSL"
+elif test -n "$SSL_ENABLED"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSL"
+fi
+if test "x$IPV6_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES IPv6"
+fi
+if test "x$USE_UNIX_SOCKETS" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES UnixSockets"
+fi
+if test "x$HAVE_LIBZ" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES libz"
+fi
+if test "x$HAVE_BROTLI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES brotli"
+fi
+if test "x$HAVE_ZSTD" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES zstd"
+fi
+if test "x$USE_ARES" = "x1" -o "x$USE_THREADS_POSIX" = "x1" \
+                            -o "x$USE_THREADS_WIN32" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES AsynchDNS"
+fi
+if test "x$IDN_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES IDN"
+fi
+if test "x$USE_WINDOWS_SSPI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SSPI"
+fi
+
+if test "x$HAVE_GSSAPI" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES GSS-API"
+fi
+
+if test "x$curl_psl_msg" = "xenabled"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES PSL"
+fi
+
+if test "x$curl_gsasl_msg" = "xenabled"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES GSASL"
+fi
+
+if test "x$enable_altsvc" = "xyes"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES alt-svc"
+fi
+if test "x$hsts" = "xyes"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HSTS"
+fi
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    \( "x$HAVE_GSSAPI" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \); then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES SPNEGO"
+fi
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    \( "x$HAVE_GSSAPI" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \); then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES Kerberos"
+fi
+
+use_curl_ntlm_core=no
+
+if test "x$CURL_DISABLE_CRYPTO_AUTH" != "x1" -a \
+    "x$CURL_DISABLE_NTLM" != "x1"; then
+  if test "x$OPENSSL_ENABLED" = "x1" -o "x$MBEDTLS_ENABLED" = "x1" \
+      -o "x$GNUTLS_ENABLED" = "x1" -o "x$NSS_ENABLED" = "x1" \
+      -o "x$SECURETRANSPORT_ENABLED" = "x1" \
+      -o "x$USE_WIN32_CRYPTO" = "x1" \
+      -o "x$WOLFSSL_NTLM" = "x1"; then
+    use_curl_ntlm_core=yes
+  fi
+
+  if test "x$use_curl_ntlm_core" = "xyes" \
+      -o "x$USE_WINDOWS_SSPI" = "x1"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM"
+
+    if test "x$CURL_DISABLE_HTTP" != "x1" -a \
+        "x$NTLM_WB_ENABLED" = "x1"; then
+      SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM_WB"
+    fi
+  fi
+fi
+
+if test "x$USE_TLS_SRP" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES TLS-SRP"
+fi
+
+if test "x$USE_NGHTTP2" = "x1" -o "x$USE_HYPER" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP2"
+fi
+
+if test "x$USE_NGTCP2" = "x1" -o "x$USE_QUICHE" = "x1" \
+    -o "x$USE_MSH3" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES HTTP3"
+fi
+
+if test "x$CURL_WITH_MULTI_SSL" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES MultiSSL"
+fi
+
+dnl if not explicitly turned off, HTTPS-proxy comes with some TLS backends
+if test "x$https_proxy" != "xno"; then
+  if test "x$OPENSSL_ENABLED" = "x1" -o "x$GNUTLS_ENABLED" = "x1" \
+      -o "x$NSS_ENABLED" = "x1"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES HTTPS-proxy"
+  fi
+fi
+
+if test "x$ECH_ENABLED" = "x1"; then
+  SUPPORT_FEATURES="$SUPPORT_FEATURES ECH"
+fi
+
+if test ${ac_cv_sizeof_curl_off_t} -gt 4; then
+  if test ${ac_cv_sizeof_off_t} -gt 4 -o \
+     "$curl_win32_file_api" = "win32_large_files"; then
+    SUPPORT_FEATURES="$SUPPORT_FEATURES Largefile"
+  fi
+fi
+
+dnl replace spaces with newlines
+dnl sort the lines
+dnl replace the newlines back to spaces
+SUPPORT_FEATURES=`echo $SUPPORT_FEATURES | tr ' ' '\012' | sort | tr '\012' ' '`
+AC_SUBST(SUPPORT_FEATURES)
+
+dnl For supported protocols in pkg-config file
+if test "x$CURL_DISABLE_HTTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS HTTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS HTTPS"
+  fi
+fi
+if test "x$CURL_DISABLE_FTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FTPS"
+  fi
+fi
+if test "x$CURL_DISABLE_FILE" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS FILE"
+fi
+if test "x$CURL_DISABLE_TELNET" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS TELNET"
+fi
+if test "x$CURL_DISABLE_LDAP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS LDAP"
+  if test "x$CURL_DISABLE_LDAPS" != "x1"; then
+    if (test "x$USE_OPENLDAP" = "x1" && test "x$SSL_ENABLED" = "x1") ||
+      (test "x$USE_OPENLDAP" != "x1"  && test "x$HAVE_LDAP_SSL" = "x1"); then
+      SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS LDAPS"
+    fi
+  fi
+fi
+if test "x$CURL_DISABLE_DICT" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS DICT"
+fi
+if test "x$CURL_DISABLE_TFTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS TFTP"
+fi
+if test "x$CURL_DISABLE_GOPHER" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS GOPHER"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS GOPHERS"
+  fi
+fi
+if test "x$CURL_DISABLE_MQTT" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS MQTT"
+fi
+if test "x$CURL_DISABLE_POP3" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS POP3"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS POP3S"
+  fi
+fi
+if test "x$CURL_DISABLE_IMAP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS IMAP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS IMAPS"
+  fi
+fi
+if test "x$CURL_DISABLE_SMB" != "x1" \
+    -a "x$use_curl_ntlm_core" = "xyes"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMB"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMBS"
+  fi
+fi
+if test "x$CURL_DISABLE_SMTP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMTP"
+  if test "x$SSL_ENABLED" = "x1"; then
+    SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SMTPS"
+  fi
+fi
+if test "x$USE_LIBSSH2" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SCP"
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$USE_LIBSSH" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SCP"
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$USE_WOLFSSH" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS SFTP"
+fi
+if test "x$CURL_DISABLE_RTSP" != "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTSP"
+fi
+if test "x$USE_LIBRTMP" = "x1"; then
+  SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTMP"
+fi
+
+dnl replace spaces with newlines
+dnl sort the lines
+dnl replace the newlines back to spaces
+SUPPORT_PROTOCOLS=`echo $SUPPORT_PROTOCOLS | tr ' ' '\012' | sort | tr '\012' ' '`
+
+AC_SUBST(SUPPORT_PROTOCOLS)
+
+dnl squeeze whitespace out of some variables
+
+squeeze CFLAGS
+squeeze CPPFLAGS
+squeeze DEFS
+squeeze LDFLAGS
+squeeze LIBS
+
+squeeze LIBCURL_LIBS
+squeeze CURL_NETWORK_LIBS
+squeeze CURL_NETWORK_AND_TIME_LIBS
+
+squeeze SUPPORT_FEATURES
+squeeze SUPPORT_PROTOCOLS
+
+XC_CHECK_BUILD_FLAGS
+
+SSL_BACKENDS=${ssl_backends}
+AC_SUBST(SSL_BACKENDS)
+
+if test "x$want_curldebug_assumed" = "xyes" &&
+  test "x$want_curldebug" = "xyes" && test "x$USE_ARES" = "x1"; then
+  ac_configure_args="$ac_configure_args --enable-curldebug"
+fi
+
+AC_CONFIG_FILES([Makefile \
+           docs/Makefile \
+           docs/examples/Makefile \
+           docs/libcurl/Makefile \
+           docs/libcurl/opts/Makefile \
+           docs/cmdline-opts/Makefile \
+           include/Makefile \
+           include/curl/Makefile \
+           src/Makefile \
+           lib/Makefile \
+           scripts/Makefile \
+           lib/libcurl.vers \
+           lib/libcurl.plist \
+           tests/Makefile \
+           tests/certs/Makefile \
+           tests/certs/scripts/Makefile \
+           tests/data/Makefile \
+           tests/server/Makefile \
+           tests/libtest/Makefile \
+           tests/unit/Makefile \
+           packages/Makefile \
+           packages/vms/Makefile \
+           curl-config \
+           libcurl.pc
+])
+AC_OUTPUT
+
+CURL_GENERATE_CONFIGUREHELP_PM
+
+XC_AMEND_DISTCLEAN([lib src tests/unit tests/server tests/libtest docs/examples])
+
+AC_MSG_NOTICE([Configured to build curl/libcurl:
+
+  Host setup:       ${host}
+  Install prefix:   ${prefix}
+  Compiler:         ${CC}
+   CFLAGS:          ${CFLAGS}
+   CPPFLAGS:        ${CPPFLAGS}
+   LDFLAGS:         ${LDFLAGS}
+   LIBS:            ${LIBS}
+
+  curl version:     ${CURLVERSION}
+  SSL:              ${curl_ssl_msg}
+  SSH:              ${curl_ssh_msg}
+  zlib:             ${curl_zlib_msg}
+  brotli:           ${curl_brotli_msg}
+  zstd:             ${curl_zstd_msg}
+  GSS-API:          ${curl_gss_msg}
+  GSASL:            ${curl_gsasl_msg}
+  TLS-SRP:          ${curl_tls_srp_msg}
+  resolver:         ${curl_res_msg}
+  IPv6:             ${curl_ipv6_msg}
+  Unix sockets:     ${curl_unix_sockets_msg}
+  IDN:              ${curl_idn_msg}
+  Build libcurl:    Shared=${enable_shared}, Static=${enable_static}
+  Built-in manual:  ${curl_manual_msg}
+  --libcurl option: ${curl_libcurl_msg}
+  Verbose errors:   ${curl_verbose_msg}
+  Code coverage:    ${curl_coverage_msg}
+  SSPI:             ${curl_sspi_msg}
+  ca cert bundle:   ${ca}${ca_warning}
+  ca cert path:     ${capath}${capath_warning}
+  ca fallback:      ${with_ca_fallback}
+  LDAP:             ${curl_ldap_msg}
+  LDAPS:            ${curl_ldaps_msg}
+  RTSP:             ${curl_rtsp_msg}
+  RTMP:             ${curl_rtmp_msg}
+  PSL:              ${curl_psl_msg}
+  Alt-svc:          ${curl_altsvc_msg}
+  Headers API:      ${curl_headers_msg}
+  HSTS:             ${curl_hsts_msg}
+  HTTP1:            ${curl_h1_msg}
+  HTTP2:            ${curl_h2_msg}
+  HTTP3:            ${curl_h3_msg}
+  ECH:              ${curl_ech_msg}
+  Protocols:        ${SUPPORT_PROTOCOLS}
+  Features:         ${SUPPORT_FEATURES}
+])
+if test -n "$experimental"; then
+ cat >&2 << _EOF
+  WARNING: $experimental enabled but marked EXPERIMENTAL. Use with caution!
+_EOF
+fi
diff --git a/curl/curl-config.in b/curl/curl-config.in
new file mode 100644
index 0000000..8b4a29a
--- /dev/null
+++ b/curl/curl-config.in
@@ -0,0 +1,194 @@
+#! /bin/sh
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 2001 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+includedir=@includedir@
+cppflag_curl_staticlib=@CPPFLAG_CURL_STATICLIB@
+
+usage()
+{
+    cat <&2
+          exit 1
+        fi
+        ;;
+
+    --configure)
+        echo @CONFIGURE_OPTIONS@
+        ;;
+
+    *)
+        echo "unknown option: $1"
+        usage 1
+        ;;
+    esac
+    shift
+done
+
+exit 0
diff --git a/curl/depcomp b/curl/depcomp
new file mode 100644
index 0000000..715e343
--- /dev/null
+++ b/curl/depcomp
@@ -0,0 +1,791 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2021 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva .
+
+case $1 in
+  '')
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputting dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to .
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'.  On the theory
+## that the space means something, we add a space to the output as
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like '#:fec' to the end of the
+    # dependency line.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+      | tr "$nl" ' ' >> "$depfile"
+    echo >> "$depfile"
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+      >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  set_dir_from "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  set_dir_from  "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add 'dependent.h:' lines.
+    sed -ne '2,${
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
+
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for ':'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+  "$@" $dashmflag |
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+        set fnord "$@"
+        shift
+        shift
+        ;;
+    *)
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/curl/docs/ALTSVC.md b/curl/docs/ALTSVC.md
new file mode 100644
index 0000000..d347f6e
--- /dev/null
+++ b/curl/docs/ALTSVC.md
@@ -0,0 +1,41 @@
+# Alt-Svc
+
+curl features support for the Alt-Svc: HTTP header.
+
+## Enable Alt-Svc in build
+
+`./configure --enable-alt-svc`
+
+(enabled by default since 7.73.0)
+
+## Standard
+
+[RFC 7838](https://datatracker.ietf.org/doc/html/rfc7838)
+
+# Alt-Svc cache file format
+
+This a text based file with one line per entry and each line consists of nine
+space separated fields.
+
+## Example
+
+    h2 quic.tech 8443 h3-22 quic.tech 8443 "20190808 06:18:37" 0 0
+
+## Fields
+
+1. The ALPN id for the source origin
+2. The host name for the source origin
+3. The port number for the source origin
+4. The ALPN id for the destination host
+5. The host name for the destination host
+6. The host number for the destination host
+7. The expiration date and time of this entry within double quotes. The date format is "YYYYMMDD HH:MM:SS" and the time zone is GMT.
+8. Boolean (1 or 0) if "persist" was set for this entry
+9. Integer priority value (not currently used)
+
+# TODO
+
+- handle multiple response headers, when one of them says `clear` (should
+  override them all)
+- using `Age:` value for caching age as per spec
+- `CURLALTSVC_IMMEDIATELY` support
diff --git a/curl/docs/BINDINGS.md b/curl/docs/BINDINGS.md
new file mode 100644
index 0000000..b9f68ea
--- /dev/null
+++ b/curl/docs/BINDINGS.md
@@ -0,0 +1,134 @@
+libcurl bindings
+================
+
+ Creative people have written bindings or interfaces for various environments
+ and programming languages. Using one of these allows you to take advantage of
+ curl powers from within your favourite language or system.
+
+ This is a list of all known interfaces as of this writing.
+
+ The bindings listed below are not part of the curl/libcurl distribution
+ archives, but must be downloaded and installed separately.
+
+
+
+[Ada95](https://web.archive.org/web/20070403105909/www.almroth.com/adacurl/index.html) Written by Andreas Almroth
+
+[Basic](https://scriptbasic.com/) ScriptBasic bindings written by Peter Verhas
+
+C++: [curlpp](https://github.com/jpbarrette/curlpp/) Written by Jean-Philippe Barrette-LaPierre,
+[curlcpp](https://github.com/JosephP91/curlcpp) by Giuseppe Persico and [C++
+Requests](https://github.com/libcpr/cpr) by Huu Nguyen
+
+[Ch](https://chcurl.sourceforge.io/) Written by Stephen Nestinger and Jonathan Rogado
+
+Cocoa: [BBHTTP](https://github.com/biasedbit/BBHTTP) written by Bruno de Carvalho
+[curlhandle](https://github.com/karelia/curlhandle) Written by Dan Wood
+
+Clojure: [clj-curl](https://github.com/lsevero/clj-curl) by Lucas Severo
+
+[D](https://dlang.org/library/std/net/curl.html) Written by Kenneth Bogert
+
+[Delphi](https://github.com/Mercury13/curl4delphi) Written by Mikhail Merkuryev
+
+[Dylan](https://dylanlibs.sourceforge.io/) Written by Chris Double
+
+[Eiffel](https://iron.eiffel.com/repository/20.11/package/ABEF6975-37AC-45FD-9C67-52D10BA0669B) Written by Eiffel Software
+
+[Euphoria](https://web.archive.org/web/20050204080544/rays-web.com/eulibcurl.htm) Written by Ray Smith
+
+[Falcon](http://www.falconpl.org/project_docs/curl/)
+
+[Ferite](https://web.archive.org/web/20150102192018/ferite.org/) Written by Paul Querna
+
+[Gambas](https://gambas.sourceforge.io/)
+
+[glib/GTK+](https://web.archive.org/web/20100526203452/atterer.net/glibcurl) Written by Richard Atterer
+
+Go: [go-curl](https://github.com/andelf/go-curl) by ShuYu Wang
+
+[Guile](https://github.com/spk121/guile-curl) Written by Michael L. Gran
+
+[Harbour](https://github.com/vszakats/hb/tree/main/contrib/hbcurl) Written by Viktor Szakats
+
+[Haskell](https://hackage.haskell.org/package/curl) Written by Galois, Inc
+
+[Hollywood](https://www.hollywood-mal.com/download.html) hURL by Andreas Falkenhahn
+
+[Java](https://github.com/pjlegato/curl-java)
+
+[Julia](https://github.com/JuliaWeb/LibCURL.jl) Written by Amit Murthy
+
+[Kapito](https://github.com/puzza007/katipo) is an Erlang HTTP library around libcurl.
+
+[Lisp](https://common-lisp.net/project/cl-curl/) Written by Liam Healy
+
+Lua: [luacurl](https://web.archive.org/web/20201205052437/luacurl.luaforge.net/) by Alexander Marinov, [Lua-cURL](https://github.com/Lua-cURL) by Jürgen Hötzel
+
+[Mono](https://web.archive.org/web/20070606064500/https://forge.novell.com/modules/xfmod/project/?libcurl-mono) Written by Jeffrey Phillips
+
+[.NET](https://sourceforge.net/projects/libcurl-net/) libcurl-net by Jeffrey Phillips
+
+[Nim](https://nimble.directory/pkg/libcurl) wrapper for libcurl
+
+[node.js](https://github.com/JCMais/node-libcurl) node-libcurl by Jonathan Cardoso Machado
+
+[Object-Pascal](https://web.archive.org/web/20020610214926/www.tekool.com/opcurl) Free Pascal, Delphi and Kylix binding written by Christophe Espern.
+
+[OCaml](https://opam.ocaml.org/packages/ocurl/) Written by Lars Nilsson and ygrek
+
+[Pascal](https://web.archive.org/web/20030804091414/houston.quik.com/jkp/curlpas/) Free Pascal, Delphi and Kylix binding written by Jeffrey Pohlmeyer.
+
+Perl: [WWW::Curl](https://github.com/szbalint/WWW--Curl) Maintained by Cris
+Bailiff and Bálint Szilakszi,
+[perl6-net-curl](https://github.com/azawawi/perl6-net-curl) by Ahmad M. Zawawi
+[NET::Curl](https://metacpan.org/pod/Net::Curl) by Przemyslaw Iskra
+
+[PHP](https://php.net/curl) Originally written by Sterling Hughes
+
+[PostgreSQL](https://github.com/pramsey/pgsql-http) - HTTP client for PostgreSQL
+
+[PostgreSQL](https://github.com/RekGRpth/pg_curl) - cURL client for PostgreSQL
+
+[PureBasic](https://www.purebasic.com/documentation/http/index.html) uses libcurl in its "native" HTTP subsystem
+
+[Python](http://pycurl.io/) PycURL by Kjetil Jacobsen
+
+[Q](https://q-lang.sourceforge.io/) The libcurl module is part of the default install
+
+[R](https://cran.r-project.org/package=curl)
+
+[Rexx](https://rexxcurl.sourceforge.io/) Written Mark Hessling
+
+[Ring](https://ring-lang.sourceforge.io/doc1.3/libcurl.html) RingLibCurl by Mahmoud Fayed
+
+RPG, support for ILE/RPG on OS/400 is included in source distribution
+
+Ruby: [curb](https://github.com/taf2/curb) written by Ross Bamford,
+[ruby-curl-multi](https://github.com/kball/curl_multi.rb) by Kristjan Petursson and Keith Rarick
+
+[Rust](https://github.com/alexcrichton/curl-rust) curl-rust - by Carl Lerche
+
+[Scheme](http://www.metapaper.net/lisovsky/web/curl/) Bigloo binding by Kirill Lisovsky
+
+[Scilab](https://help.scilab.org/docs/current/fr_FR/getURL.html) binding by Sylvestre Ledru
+
+[S-Lang](https://www.jedsoft.org/slang/modules/curl.html) by John E Davis
+
+[Smalltalk](https://www.squeaksource.com/CurlPlugin/) Written by Danil Osipchuk
+
+[SP-Forth](https://sourceforge.net/p/spf/spf/ci/master/tree/devel/~ac/lib/lin/curl/) Written by Andrey Cherezov
+
+[SPL](https://web.archive.org/web/20210203022158/http://www.clifford.at/spl/spldoc/curl.html) Written by Clifford Wolf
+
+[Tcl](https://web.archive.org/web/20160826011806/mirror.yellow5.com/tclcurl/) Tclcurl by Andrés García
+
+[Visual Basic](https://sourceforge.net/projects/libcurl-vb/) libcurl-vb by Jeffrey Phillips
+
+[Visual Foxpro](https://web.archive.org/web/20130730181523/www.ctl32.com.ar/libcurl.asp) by Carlos Alloatti
+
+[wxWidgets](https://wxcode.sourceforge.io/components/wxcurl/) Written by Casey O'Donnell
+
+[XBLite](https://web.archive.org/web/20060426150418/perso.wanadoo.fr/xblite/libraries.html) Written by David Szafranski
+
+[Xojo](https://github.com/charonn0/RB-libcURL) Written by Andrew Lambert
diff --git a/curl/docs/BUFREF.md b/curl/docs/BUFREF.md
new file mode 100644
index 0000000..35c5342
--- /dev/null
+++ b/curl/docs/BUFREF.md
@@ -0,0 +1,81 @@
+# bufref
+
+This is an internal module for handling buffer references. A referenced
+buffer is associated with its destructor function that is implicitly called
+when the reference is invalidated. Once referenced, a buffer cannot be
+reallocated.
+
+A data length is stored within the reference for binary data handling
+purposes; it is not used by the bufref API.
+
+The `struct bufref` is used to hold data referencing a buffer. The members of
+that structure **MUST NOT** be accessed or modified without using the dedicated
+bufref API.
+
+## init
+
+```c
+void Curl_bufref_init(struct bufref *br);
+```
+
+Initialises a `bufref` structure. This function **MUST** be called before any
+other operation is performed on the structure.
+
+Upon completion, the referenced buffer is `NULL` and length is zero.
+
+This function may also be called to bypass referenced buffer destruction while
+invalidating the current reference.
+
+## free
+
+```c
+void Curl_bufref_free(struct bufref *br);
+```
+
+Destroys the previously referenced buffer using its destructor and
+reinitialises the structure for a possible subsequent reuse.
+
+## set
+
+```c
+void Curl_bufref_set(struct bufref *br, const void *buffer, size_t length,
+                     void (*destructor)(void *));
+```
+
+Releases the previously referenced buffer, then assigns the new `buffer` to
+the structure, associated with its `destructor` function. The latter can be
+specified as `NULL`: this will be the case when the referenced buffer is
+static.
+
+if `buffer` is NULL, `length`must be zero.
+
+## memdup
+
+```c
+CURLcode Curl_bufref_memdup(struct bufref *br, const void *data, size_t length);
+```
+
+Releases the previously referenced buffer, then duplicates the `length`-byte
+`data` into a buffer allocated via `malloc()` and references the latter
+associated with destructor `curl_free()`.
+
+An additional trailing byte is allocated and set to zero as a possible
+string zero-terminator; it is not counted in the stored length.
+
+Returns `CURLE_OK` if successful, else `CURLE_OUT_OF_MEMORY`.
+
+## ptr
+
+```c
+const unsigned char *Curl_bufref_ptr(const struct bufref *br);
+```
+
+Returns a `const unsigned char *` to the referenced buffer.
+
+## len
+
+```c
+size_t Curl_bufref_len(const struct bufref *br);
+```
+
+Returns the stored length of the referenced buffer.
diff --git a/curl/docs/BUG-BOUNTY.md b/curl/docs/BUG-BOUNTY.md
new file mode 100644
index 0000000..41681d2
--- /dev/null
+++ b/curl/docs/BUG-BOUNTY.md
@@ -0,0 +1,73 @@
+# The curl bug bounty
+
+The curl project runs a bug bounty program in association with
+[HackerOne](https://www.hackerone.com) and the [Internet Bug
+Bounty](https://internetbugbounty.org).
+
+# How does it work?
+
+Start out by posting your suspected security vulnerability directly to [curl's
+HackerOne program](https://hackerone.com/curl).
+
+After you have reported a security issue, it has been deemed credible, and a
+patch and advisory has been made public, you may be eligible for a bounty from
+this program. See the [SECURITY-PROCESS](SECURITY-PROCESS.md) document for how
+we work with security issues.
+
+# What are the reward amounts?
+
+The curl project offers monetary compensation for reported and published
+security vulnerabilities. The amount of money that is rewarded depends on how
+serious the flaw is determined to be.
+
+Since 2021, the Bug Bounty is managed in association with the Internet Bug
+Bounty and they will set the reward amounts. If it would turn out that they
+set amounts that are way lower than we can accept, the curl project intends to
+"top up" rewards.
+
+# Who is eligible for a reward?
+
+Everyone and anyone who reports a security problem in a released curl version
+that has not already been reported can ask for a bounty.
+
+Vulnerabilities in features that are off by default and documented as
+experimental are not eligible for a reward.
+
+The vulnerability has to be fixed and publicly announced (by the curl project)
+before a bug bounty will be considered.
+
+Once the vulnerability has been published by curl, the researcher can request
+their bounty from the [Internet Bug Bounty](https://hackerone.com/ibb).
+
+Bounties need to be requested within twelve months from the publication of the
+vulnerability.
+
+# Product vulnerabilities only
+
+This bug bounty only concerns the curl and libcurl products and thus their
+respective source codes - when running on existing hardware. It does not
+include curl documentation, curl websites, or other curl related
+infrastructure.
+
+The curl security team is the sole arbiter if a reported flaw is subject to a
+bounty or not.
+
+# How are vulnerabilities graded?
+
+The grading of each reported vulnerability that makes a reward claim will be
+performed by the curl security team. The grading will be based on the CVSS
+(Common Vulnerability Scoring System) 3.0.
+
+# How are reward amounts determined?
+
+The curl security team first gives the vulnerability a score, as mentioned
+above, and based on that level we set an amount depending on the specifics of
+the individual case. Other sponsors of the program might also get involved and
+can raise the amounts depending on the particular issue.
+
+# Regarding taxes, etc. on the bounties
+
+In the event that the individual receiving a bug bounty needs to pay taxes on
+the reward money, the responsibility lies with the receiver. The curl project
+or its security team never actually receive any of this money, hold the money,
+or pay out the money.
diff --git a/curl/docs/BUGS.md b/curl/docs/BUGS.md
new file mode 100644
index 0000000..584c67f
--- /dev/null
+++ b/curl/docs/BUGS.md
@@ -0,0 +1,266 @@
+# BUGS
+
+## There are still bugs
+
+ Curl and libcurl keep being developed. Adding features and changing code
+ means that bugs will sneak in, no matter how hard we try not to.
+
+ Of course there are lots of bugs left. And lots of misfeatures.
+
+ To help us make curl the stable and solid product we want it to be, we need
+ bug reports and bug fixes.
+
+## Where to report
+
+ If you cannot fix a bug yourself and submit a fix for it, try to report an as
+ detailed report as possible to a curl mailing list to allow one of us to have
+ a go at a solution. You can optionally also submit your problem in [curl's
+ bug tracking system](https://github.com/curl/curl/issues).
+
+ Please read the rest of this document below first before doing that.
+
+ If you feel you need to ask around first, find a suitable [mailing list](
+ https://curl.se/mail/) and post your questions there.
+
+## Security bugs
+
+ If you find a bug or problem in curl or libcurl that you think has a security
+ impact, for example a bug that can put users in danger or make them
+ vulnerable if the bug becomes public knowledge, then please report that bug
+ using our security development process.
+
+ Security related bugs or bugs that are suspected to have a security impact,
+ should be reported on the [curl security tracker at
+ HackerOne](https://hackerone.com/curl).
+
+ This ensures that the report reaches the curl security team so that they
+ first can deal with the report away from the public to minimize the harm
+ and impact it will have on existing users out there who might be using the
+ vulnerable versions.
+
+ The curl project's process for handling security related issues is
+ [documented separately](https://curl.se/dev/secprocess.html).
+
+## What to report
+
+ When reporting a bug, you should include all information that will help us
+ understand what's wrong, what you expected to happen and how to repeat the
+ bad behavior. You therefore need to tell us:
+
+ - your operating system's name and version number
+
+ - what version of curl you are using (`curl -V` is fine)
+
+ - versions of the used libraries that libcurl is built to use
+
+ - what URL you were working with (if possible), at least which protocol
+
+ and anything and everything else you think matters. Tell us what you expected
+ to happen, tell use what did happen, tell us how you could make it work
+ another way. Dig around, try out, test. Then include all the tiny bits and
+ pieces in your report. You will benefit from this yourself, as it will enable
+ us to help you quicker and more accurately.
+
+ Since curl deals with networks, it often helps us if you include a protocol
+ debug dump with your bug report. The output you get by using the `-v` or
+ `--trace` options.
+
+ If curl crashed, causing a core dump (in Unix), there is hardly any use to
+ send that huge file to anyone of us. Unless we have the same system setup as
+ you, we cannot do much with it. Instead, we ask you to get a stack trace and
+ send that (much smaller) output to us instead.
+
+ The address and how to subscribe to the mailing lists are detailed in the
+ `MANUAL.md` file.
+
+## libcurl problems
+
+ When you have written your own application with libcurl to perform transfers,
+ it is even more important to be specific and detailed when reporting bugs.
+
+ Tell us the libcurl version and your operating system. Tell us the name and
+ version of all relevant sub-components like for example the SSL library
+ you are using and what name resolving your libcurl uses. If you use SFTP or
+ SCP, the libssh2 version is relevant etc.
+
+ Showing us a real source code example repeating your problem is the best way
+ to get our attention and it will greatly increase our chances to understand
+ your problem and to work on a fix (if we agree it truly is a problem).
+
+ Lots of problems that appear to be libcurl problems are actually just abuses
+ of the libcurl API or other malfunctions in your applications. It is advised
+ that you run your problematic program using a memory debug tool like valgrind
+ or similar before you post memory-related or "crashing" problems to us.
+
+## Who will fix the problems
+
+ If the problems or bugs you describe are considered to be bugs, we want to
+ have the problems fixed.
+
+ There are no developers in the curl project that are paid to work on bugs.
+ All developers that take on reported bugs do this on a voluntary basis. We do
+ it out of an ambition to keep curl and libcurl excellent products and out of
+ pride.
+
+ Please do not assume that you can just lump over something to us and it will
+ then magically be fixed after some given time. Most often we need feedback
+ and help to understand what you have experienced and how to repeat a
+ problem. Then we may only be able to assist YOU to debug the problem and to
+ track down the proper fix.
+
+ We get reports from many people every month and each report can take a
+ considerable amount of time to really go to the bottom with.
+
+## How to get a stack trace
+
+ First, you must make sure that you compile all sources with `-g` and that you
+ do not 'strip' the final executable. Try to avoid optimizing the code as well,
+ remove `-O`, `-O2` etc from the compiler options.
+
+ Run the program until it cores.
+
+ Run your debugger on the core file, like ` curl
+ core`. `` should be replaced with the name of your debugger, in
+ most cases that will be `gdb`, but `dbx` and others also occur.
+
+ When the debugger has finished loading the core file and presents you a
+ prompt, enter `where` (without quotes) and press return.
+
+ The list that is presented is the stack trace. If everything worked, it is
+ supposed to contain the chain of functions that were called when curl
+ crashed. Include the stack trace with your detailed bug report, it will help a
+ lot.
+
+## Bugs in libcurl bindings
+
+ There will of course pop up bugs in libcurl bindings. You should then
+ primarily approach the team that works on that particular binding and see
+ what you can do to help them fix the problem.
+
+ If you suspect that the problem exists in the underlying libcurl, then please
+ convert your program over to plain C and follow the steps outlined above.
+
+## Bugs in old versions
+
+ The curl project typically releases new versions every other month, and we
+ fix several hundred bugs per year. For a huge table of releases, number of
+ bug fixes and more, see: https://curl.se/docs/releases.html
+
+ The developers in the curl project do not have bandwidth or energy enough to
+ maintain several branches or to spend much time on hunting down problems in
+ old versions when chances are we already fixed them or at least that they have
+ changed nature and appearance in later versions.
+
+ When you experience a problem and want to report it, you really SHOULD
+ include the version number of the curl you are using when you experience the
+ issue. If that version number shows us that you are using an out-of-date curl,
+ you should also try out a modern curl version to see if the problem persists
+ or how/if it has changed in appearance.
+
+ Even if you cannot immediately upgrade your application/system to run the
+ latest curl version, you can most often at least run a test version or
+ experimental build or similar, to get this confirmed or not.
+
+ At times people insist that they cannot upgrade to a modern curl version, but
+ instead they "just want the bug fixed". That is fine, just do not count on us
+ spending many cycles on trying to identify which single commit, if that is
+ even possible, that at some point in the past fixed the problem you are now
+ experiencing.
+
+ Security wise, it is almost always a bad idea to lag behind the current curl
+ versions by a lot. We keep discovering and reporting security problems
+ over time see you can see in [this
+ table](https://curl.se/docs/vulnerabilities.html)
+
+# Bug fixing procedure
+
+## What happens on first filing
+
+ When a new issue is posted in the issue tracker or on the mailing list, the
+ team of developers first needs to see the report. Maybe they took the day off,
+ maybe they are off in the woods hunting. Have patience. Allow at least a few
+ days before expecting someone to have responded.
+
+ In the issue tracker you can expect that some labels will be set on the issue
+ to help categorize it.
+
+## First response
+
+ If your issue/bug report was not perfect at once (and few are), chances are
+ that someone will ask follow-up questions. Which version did you use? Which
+ options did you use? How often does the problem occur? How can we reproduce
+ this problem? Which protocols does it involve? Or perhaps much more specific
+ and deep diving questions. It all depends on your specific issue.
+
+ You should then respond to these follow-up questions and provide more info
+ about the problem, so that we can help you figure it out. Or maybe you can
+ help us figure it out. An active back-and-forth communication is important
+ and the key for finding a cure and landing a fix.
+
+## Not reproducible
+
+ For problems that we cannot reproduce and cannot understand even after having
+ gotten all the info we need and having studied the source code over again,
+ are really hard to solve so then we may require further work from you who
+ actually see or experience the problem.
+
+## Unresponsive
+
+ If the problem have not been understood or reproduced, and there's nobody
+ responding to follow-up questions or questions asking for clarifications or
+ for discussing possible ways to move forward with the task, we take that as a
+ strong suggestion that the bug is unimportant.
+
+ Unimportant issues will be closed as inactive sooner or later as they cannot
+ be fixed. The inactivity period (waiting for responses) should not be shorter
+ than two weeks but may extend months.
+
+## Lack of time/interest
+
+ Bugs that are filed and are understood can unfortunately end up in the
+ "nobody cares enough about it to work on it" category. Such bugs are
+ perfectly valid problems that *should* get fixed but apparently are not. We
+ try to mark such bugs as `KNOWN_BUGS material` after a time of inactivity and
+ if no activity is noticed after yet some time those bugs are added to the
+ `KNOWN_BUGS` document and are closed in the issue tracker.
+
+## `KNOWN_BUGS`
+
+ This is a list of known bugs. Bugs we know exist and that have been pointed
+ out but that have not yet been fixed. The reasons for why they have not been
+ fixed can involve anything really, but the primary reason is that nobody has
+ considered these problems to be important enough to spend the necessary time
+ and effort to have them fixed.
+
+ The `KNOWN_BUGS` items are always up for grabs and we love the ones who bring
+ one of them back to life and offer solutions to them.
+
+ The `KNOWN_BUGS` document has a sibling document known as `TODO`.
+
+## `TODO`
+
+ Issues that are filed or reported that are not really bugs but more missing
+ features or ideas for future improvements and so on are marked as
+ 'enhancement' or 'feature-request' and will be added to the `TODO` document
+ and the issues are closed. We do not keep TODO items open in the issue
+ tracker.
+
+ The `TODO` document is full of ideas and suggestions of what we can add or
+ fix one day. you are always encouraged and free to grab one of those items and
+ take up a discussion with the curl development team on how that could be
+ implemented or provided in the project so that you can work on ticking it odd
+ that document.
+
+ If an issue is rather a bug and not a missing feature or functionality, it is
+ listed in `KNOWN_BUGS` instead.
+
+## Closing off stalled bugs
+
+ The [issue and pull request trackers](https://github.com/curl/curl) only
+ hold "active" entries open (using a non-precise definition of what active
+ actually is, but they are at least not completely dead). Those that are
+ abandoned or in other ways dormant will be closed and sometimes added to
+ `TODO` and `KNOWN_BUGS` instead.
+
+ This way, we only have "active" issues open on GitHub. Irrelevant issues and
+ pull requests will not distract developers or casual visitors.
diff --git a/curl/docs/CHECKSRC.md b/curl/docs/CHECKSRC.md
new file mode 100644
index 0000000..58a33d7
--- /dev/null
+++ b/curl/docs/CHECKSRC.md
@@ -0,0 +1,183 @@
+# checksrc
+
+This is the tool we use within the curl project to scan C source code and
+check that it adheres to our [Source Code Style guide](CODE_STYLE.md).
+
+## Usage
+
+    checksrc.pl [options] [file1] [file2] ...
+
+## Command line options
+
+`-W[file]` skip that file and exclude it from being checked. Helpful
+when, for example, one of the files is generated.
+
+`-D[dir]` directory name to prepend to file names when accessing them.
+
+`-h` shows the help output, that also lists all recognized warnings
+
+## What does checksrc warn for?
+
+checksrc does not check and verify the code against the entire style guide.
+The script is an effort to detect the most common mistakes and syntax mistakes
+that contributors make before they get accustomed to our code style. Heck,
+many of us regulars do the mistakes too and this script helps us keep the code
+in shape.
+
+    checksrc.pl -h
+
+Lists how to use the script and it lists all existing warnings it has and
+problems it detects. At the time of this writing, the existing checksrc
+warnings are:
+
+- `ASSIGNWITHINCONDITION`: Assignment within a conditional expression. The
+  code style mandates the assignment to be done outside of it.
+
+- `ASTERISKNOSPACE`: A pointer was declared like `char* name` instead of the
+   more appropriate `char *name` style. The asterisk should sit next to the
+   name.
+
+- `ASTERISKSPACE`: A pointer was declared like `char * name` instead of the
+   more appropriate `char *name` style. The asterisk should sit right next to
+   the name without a space in between.
+
+- `BADCOMMAND`: There's a bad `!checksrc!` instruction in the code. See the
+   **Ignore certain warnings** section below for details.
+
+- `BANNEDFUNC`: A banned function was used. The functions sprintf, vsprintf,
+   strcat, strncat, gets are **never** allowed in curl source code.
+
+- `BRACEELSE`: '} else' on the same line. The else is supposed to be on the
+   following line.
+
+- `BRACEPOS`: wrong position for an open brace (`{`).
+
+- `BRACEWHILE`: more than once space between end brace and while keyword
+
+- `COMMANOSPACE`: a comma without following space
+
+- `COPYRIGHT`: the file is missing a copyright statement!
+
+- `CPPCOMMENTS`: `//` comment detected, that is not C89 compliant
+
+- `DOBRACE`: only use one space after do before open brace
+
+- `EMPTYLINEBRACE`: found empty line before open brace
+
+- `EQUALSNOSPACE`: no space after `=` sign
+
+- `EQUALSNULL`: comparison with `== NULL` used in if/while. We use `!var`.
+
+- `EXCLAMATIONSPACE`: space found after exclamations mark
+
+- `FOPENMODE`: `fopen()` needs a macro for the mode string, use it
+
+- `INDENTATION`: detected a wrong start column for code. Note that this
+   warning only checks some specific places and will certainly miss many bad
+   indentations.
+
+- `LONGLINE`: A line is longer than 79 columns.
+
+- `MULTISPACE`: Multiple spaces were found where only one should be used.
+
+- `NOSPACEEQUALS`: An equals sign was found without preceding space. We prefer
+  `a = 2` and *not* `a=2`.
+
+- `NOTEQUALSZERO`: check found using `!= 0`. We use plain `if(var)`.
+
+- `ONELINECONDITION`: do not put the conditional block on the same line as `if()`
+
+- `OPENCOMMENT`: File ended with a comment (`/*`) still "open".
+
+- `PARENBRACE`: `){` was used without sufficient space in between.
+
+- `RETURNNOSPACE`: `return` was used without space between the keyword and the
+   following value.
+
+- `SEMINOSPACE`: There was no space (or newline) following a semicolon.
+
+- `SIZEOFNOPAREN`: Found use of sizeof without parentheses. We prefer
+  `sizeof(int)` style.
+
+- `SNPRINTF` - Found use of `snprintf()`. Since we use an internal replacement
+   with a different return code etc, we prefer `msnprintf()`.
+
+- `SPACEAFTERPAREN`: there was a space after open parenthesis, `( text`.
+
+- `SPACEBEFORECLOSE`: there was a space before a close parenthesis, `text )`.
+
+- `SPACEBEFORECOMMA`: there was a space before a comma, `one , two`.
+
+- `SPACEBEFOREPAREN`: there was a space before an open parenthesis, `if (`,
+   where one was not expected
+
+- `SPACESEMICOLON`: there was a space before semicolon, ` ;`.
+
+- `TABS`: TAB characters are not allowed!
+
+- `TRAILINGSPACE`: Trailing whitespace on the line
+
+- `TYPEDEFSTRUCT`: we frown upon (most) typedefed structs
+
+- `UNUSEDIGNORE`: a checksrc inlined warning ignore was asked for but not used,
+   that is an ignore that should be removed or changed to get used.
+
+### Extended warnings
+
+Some warnings are quite computationally expensive to perform, so they are
+turned off by default. To enable these warnings, place a `.checksrc` file in
+the directory where they should be activated with commands to enable the
+warnings you are interested in. The format of the file is to enable one
+warning per line like so: `enable `
+
+Currently these are the extended warnings which can be enabled:
+
+- `COPYRIGHTYEAR`: the current changeset has not updated the copyright year in
+   the source file
+
+- `STRERROR`: use of banned function strerror()
+
+## Ignore certain warnings
+
+Due to the nature of the source code and the flaws of the checksrc tool, there
+is sometimes a need to ignore specific warnings. checksrc allows a few
+different ways to do this.
+
+### Inline ignore
+
+You can control what to ignore within a specific source file by providing
+instructions to checksrc in the source code itself. You need a magic marker
+that is `!checksrc!` followed by the instruction. The instruction can ask to
+ignore a specific warning N number of times or you ignore all of them until
+you mark the end of the ignored section.
+
+Inline ignores are only done for that single specific source code file.
+
+Example
+
+    /* !checksrc! disable LONGLINE all */
+
+This will ignore the warning for overly long lines until it is re-enabled with:
+
+    /* !checksrc! enable LONGLINE */
+
+If the enabling is not performed before the end of the file, it will be enabled
+automatically for the next file.
+
+You can also opt to ignore just N violations so that if you have a single long
+line you just cannot shorten and is agreed to be fine anyway:
+
+    /* !checksrc! disable LONGLINE 1 */
+
+... and the warning for long lines will be enabled again automatically after
+it has ignored that single warning. The number `1` can of course be changed to
+any other integer number. It can be used to make sure only the exact intended
+instances are ignored and nothing extra.
+
+### Directory wide ignore patterns
+
+This is a method we have transitioned away from. Use inline ignores as far as
+possible.
+
+Make a `checksrc.skip` file in the directory of the source code with the
+false positive, and include the full offending line into this file.
diff --git a/curl/docs/CIPHERS.md b/curl/docs/CIPHERS.md
new file mode 100644
index 0000000..e1df764
--- /dev/null
+++ b/curl/docs/CIPHERS.md
@@ -0,0 +1,580 @@
+# Ciphers
+
+With curl's options
+[`CURLOPT_SSL_CIPHER_LIST`](https://curl.se/libcurl/c/CURLOPT_SSL_CIPHER_LIST.html)
+and
+[`--ciphers`](https://curl.se/docs/manpage.html#--ciphers)
+users can control which ciphers to consider when negotiating TLS connections.
+
+TLS 1.3 ciphers are supported since curl 7.61 for OpenSSL 1.1.1+ with options
+[`CURLOPT_TLS13_CIPHERS`](https://curl.se/libcurl/c/CURLOPT_TLS13_CIPHERS.html)
+and
+[`--tls13-ciphers`](https://curl.se/docs/manpage.html#--tls13-ciphers)
+. If you are using a different SSL backend you can try setting TLS 1.3 cipher
+suites by using the respective regular cipher option.
+
+The names of the known ciphers differ depending on which TLS backend that
+libcurl was built to use. This is an attempt to list known cipher names.
+
+## OpenSSL
+
+(based on [OpenSSL docs](https://www.openssl.org/docs/manmaster/man1/openssl-ciphers.html))
+
+When specifying multiple cipher names, separate them with colon (`:`).
+
+### SSL3 cipher suites
+
+`NULL-MD5`
+`NULL-SHA`
+`RC4-MD5`
+`RC4-SHA`
+`IDEA-CBC-SHA`
+`DES-CBC3-SHA`
+`DH-DSS-DES-CBC3-SHA`
+`DH-RSA-DES-CBC3-SHA`
+`DHE-DSS-DES-CBC3-SHA`
+`DHE-RSA-DES-CBC3-SHA`
+`ADH-RC4-MD5`
+`ADH-DES-CBC3-SHA`
+
+### TLS v1.0 cipher suites
+
+`NULL-MD5`
+`NULL-SHA`
+`RC4-MD5`
+`RC4-SHA`
+`IDEA-CBC-SHA`
+`DES-CBC3-SHA`
+`DHE-DSS-DES-CBC3-SHA`
+`DHE-RSA-DES-CBC3-SHA`
+`ADH-RC4-MD5`
+`ADH-DES-CBC3-SHA`
+
+### AES ciphersuites from RFC3268, extending TLS v1.0
+
+`AES128-SHA`
+`AES256-SHA`
+`DH-DSS-AES128-SHA`
+`DH-DSS-AES256-SHA`
+`DH-RSA-AES128-SHA`
+`DH-RSA-AES256-SHA`
+`DHE-DSS-AES128-SHA`
+`DHE-DSS-AES256-SHA`
+`DHE-RSA-AES128-SHA`
+`DHE-RSA-AES256-SHA`
+`ADH-AES128-SHA`
+`ADH-AES256-SHA`
+
+### SEED ciphersuites from RFC4162, extending TLS v1.0
+
+`SEED-SHA`
+`DH-DSS-SEED-SHA`
+`DH-RSA-SEED-SHA`
+`DHE-DSS-SEED-SHA`
+`DHE-RSA-SEED-SHA`
+`ADH-SEED-SHA`
+
+### GOST ciphersuites, extending TLS v1.0
+
+`GOST94-GOST89-GOST89`
+`GOST2001-GOST89-GOST89`
+`GOST94-NULL-GOST94`
+`GOST2001-NULL-GOST94`
+
+### Elliptic curve cipher suites
+
+`ECDHE-RSA-NULL-SHA`
+`ECDHE-RSA-RC4-SHA`
+`ECDHE-RSA-DES-CBC3-SHA`
+`ECDHE-RSA-AES128-SHA`
+`ECDHE-RSA-AES256-SHA`
+`ECDHE-ECDSA-NULL-SHA`
+`ECDHE-ECDSA-RC4-SHA`
+`ECDHE-ECDSA-DES-CBC3-SHA`
+`ECDHE-ECDSA-AES128-SHA`
+`ECDHE-ECDSA-AES256-SHA`
+`AECDH-NULL-SHA`
+`AECDH-RC4-SHA`
+`AECDH-DES-CBC3-SHA`
+`AECDH-AES128-SHA`
+`AECDH-AES256-SHA`
+
+### TLS v1.2 cipher suites
+
+`NULL-SHA256`
+`AES128-SHA256`
+`AES256-SHA256`
+`AES128-GCM-SHA256`
+`AES256-GCM-SHA384`
+`DH-RSA-AES128-SHA256`
+`DH-RSA-AES256-SHA256`
+`DH-RSA-AES128-GCM-SHA256`
+`DH-RSA-AES256-GCM-SHA384`
+`DH-DSS-AES128-SHA256`
+`DH-DSS-AES256-SHA256`
+`DH-DSS-AES128-GCM-SHA256`
+`DH-DSS-AES256-GCM-SHA384`
+`DHE-RSA-AES128-SHA256`
+`DHE-RSA-AES256-SHA256`
+`DHE-RSA-AES128-GCM-SHA256`
+`DHE-RSA-AES256-GCM-SHA384`
+`DHE-DSS-AES128-SHA256`
+`DHE-DSS-AES256-SHA256`
+`DHE-DSS-AES128-GCM-SHA256`
+`DHE-DSS-AES256-GCM-SHA384`
+`ECDHE-RSA-AES128-SHA256`
+`ECDHE-RSA-AES256-SHA384`
+`ECDHE-RSA-AES128-GCM-SHA256`
+`ECDHE-RSA-AES256-GCM-SHA384`
+`ECDHE-ECDSA-AES128-SHA256`
+`ECDHE-ECDSA-AES256-SHA384`
+`ECDHE-ECDSA-AES128-GCM-SHA256`
+`ECDHE-ECDSA-AES256-GCM-SHA384`
+`ADH-AES128-SHA256`
+`ADH-AES256-SHA256`
+`ADH-AES128-GCM-SHA256`
+`ADH-AES256-GCM-SHA384`
+`AES128-CCM`
+`AES256-CCM`
+`DHE-RSA-AES128-CCM`
+`DHE-RSA-AES256-CCM`
+`AES128-CCM8`
+`AES256-CCM8`
+`DHE-RSA-AES128-CCM8`
+`DHE-RSA-AES256-CCM8`
+`ECDHE-ECDSA-AES128-CCM`
+`ECDHE-ECDSA-AES256-CCM`
+`ECDHE-ECDSA-AES128-CCM8`
+`ECDHE-ECDSA-AES256-CCM8`
+
+### Camellia HMAC-Based ciphersuites from RFC6367, extending TLS v1.2
+
+`ECDHE-ECDSA-CAMELLIA128-SHA256`
+`ECDHE-ECDSA-CAMELLIA256-SHA384`
+`ECDHE-RSA-CAMELLIA128-SHA256`
+`ECDHE-RSA-CAMELLIA256-SHA384`
+
+### TLS 1.3 cipher suites
+
+(Note these ciphers are set with `CURLOPT_TLS13_CIPHERS` and `--tls13-ciphers`)
+
+`TLS_AES_256_GCM_SHA384`
+`TLS_CHACHA20_POLY1305_SHA256`
+`TLS_AES_128_GCM_SHA256`
+`TLS_AES_128_CCM_8_SHA256`
+`TLS_AES_128_CCM_SHA256`
+
+## NSS
+
+### Totally insecure
+
+`rc4`
+`rc4-md5`
+`rc4export`
+`rc2`
+`rc2export`
+`des`
+`desede3`
+
+###  SSL3/TLS cipher suites
+
+`rsa_rc4_128_md5`
+`rsa_rc4_128_sha`
+`rsa_3des_sha`
+`rsa_des_sha`
+`rsa_rc4_40_md5`
+`rsa_rc2_40_md5`
+`rsa_null_md5`
+`rsa_null_sha`
+`fips_3des_sha`
+`fips_des_sha`
+`fortezza`
+`fortezza_rc4_128_sha`
+`fortezza_null`
+
+### TLS 1.0 Exportable 56-bit Cipher Suites
+
+`rsa_des_56_sha`
+`rsa_rc4_56_sha`
+
+### AES ciphers
+
+`dhe_dss_aes_128_cbc_sha`
+`dhe_dss_aes_256_cbc_sha`
+`dhe_rsa_aes_128_cbc_sha`
+`dhe_rsa_aes_256_cbc_sha`
+`rsa_aes_128_sha`
+`rsa_aes_256_sha`
+
+### ECC ciphers
+
+`ecdh_ecdsa_null_sha`
+`ecdh_ecdsa_rc4_128_sha`
+`ecdh_ecdsa_3des_sha`
+`ecdh_ecdsa_aes_128_sha`
+`ecdh_ecdsa_aes_256_sha`
+`ecdhe_ecdsa_null_sha`
+`ecdhe_ecdsa_rc4_128_sha`
+`ecdhe_ecdsa_3des_sha`
+`ecdhe_ecdsa_aes_128_sha`
+`ecdhe_ecdsa_aes_256_sha`
+`ecdh_rsa_null_sha`
+`ecdh_rsa_128_sha`
+`ecdh_rsa_3des_sha`
+`ecdh_rsa_aes_128_sha`
+`ecdh_rsa_aes_256_sha`
+`ecdhe_rsa_null`
+`ecdhe_rsa_rc4_128_sha`
+`ecdhe_rsa_3des_sha`
+`ecdhe_rsa_aes_128_sha`
+`ecdhe_rsa_aes_256_sha`
+`ecdh_anon_null_sha`
+`ecdh_anon_rc4_128sha`
+`ecdh_anon_3des_sha`
+`ecdh_anon_aes_128_sha`
+`ecdh_anon_aes_256_sha`
+
+### HMAC-SHA256 cipher suites
+
+`rsa_null_sha_256`
+`rsa_aes_128_cbc_sha_256`
+`rsa_aes_256_cbc_sha_256`
+`dhe_rsa_aes_128_cbc_sha_256`
+`dhe_rsa_aes_256_cbc_sha_256`
+`ecdhe_ecdsa_aes_128_cbc_sha_256`
+`ecdhe_rsa_aes_128_cbc_sha_256`
+
+### AES GCM cipher suites in RFC 5288 and RFC 5289
+
+`rsa_aes_128_gcm_sha_256`
+`dhe_rsa_aes_128_gcm_sha_256`
+`dhe_dss_aes_128_gcm_sha_256`
+`ecdhe_ecdsa_aes_128_gcm_sha_256`
+`ecdh_ecdsa_aes_128_gcm_sha_256`
+`ecdhe_rsa_aes_128_gcm_sha_256`
+`ecdh_rsa_aes_128_gcm_sha_256`
+
+### cipher suites using SHA384
+
+`rsa_aes_256_gcm_sha_384`
+`dhe_rsa_aes_256_gcm_sha_384`
+`dhe_dss_aes_256_gcm_sha_384`
+`ecdhe_ecdsa_aes_256_sha_384`
+`ecdhe_rsa_aes_256_sha_384`
+`ecdhe_ecdsa_aes_256_gcm_sha_384`
+`ecdhe_rsa_aes_256_gcm_sha_384`
+
+### chacha20-poly1305 cipher suites
+
+`ecdhe_rsa_chacha20_poly1305_sha_256`
+`ecdhe_ecdsa_chacha20_poly1305_sha_256`
+`dhe_rsa_chacha20_poly1305_sha_256`
+
+### TLS 1.3 cipher suites
+
+`aes_128_gcm_sha_256`
+`aes_256_gcm_sha_384`
+`chacha20_poly1305_sha_256`
+
+## GSKit
+
+Ciphers are internally defined as [numeric
+codes](https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/apis/gsk_attribute_set_buffer.htm). libcurl
+maps them to the following case-insensitive names.
+
+### SSL2 cipher suites (insecure: disabled by default)
+
+`rc2-md5`
+`rc4-md5`
+`exp-rc2-md5`
+`exp-rc4-md5`
+`des-cbc-md5`
+`des-cbc3-md5`
+
+### SSL3 cipher suites
+
+`null-md5`
+`null-sha`
+`rc4-md5`
+`rc4-sha`
+`exp-rc2-cbc-md5`
+`exp-rc4-md5`
+`exp-des-cbc-sha`
+`des-cbc3-sha`
+
+### TLS v1.0 cipher suites
+
+`null-md5`
+`null-sha`
+`rc4-md5`
+`rc4-sha`
+`exp-rc2-cbc-md5`
+`exp-rc4-md5`
+`exp-des-cbc-sha`
+`des-cbc3-sha`
+`aes128-sha`
+`aes256-sha`
+
+### TLS v1.1 cipher suites
+
+`null-md5`
+`null-sha`
+`rc4-md5`
+`rc4-sha`
+`exp-des-cbc-sha`
+`des-cbc3-sha`
+`aes128-sha`
+`aes256-sha`
+
+### TLS v1.2 cipher suites
+
+`null-md5`
+`null-sha`
+`null-sha256`
+`rc4-md5`
+`rc4-sha`
+`des-cbc3-sha`
+`aes128-sha`
+`aes256-sha`
+`aes128-sha256`
+`aes256-sha256`
+`aes128-gcm-sha256`
+`aes256-gcm-sha384`
+
+## WolfSSL
+
+`RC4-SHA`,
+`RC4-MD5`,
+`DES-CBC3-SHA`,
+`AES128-SHA`,
+`AES256-SHA`,
+`NULL-SHA`,
+`NULL-SHA256`,
+`DHE-RSA-AES128-SHA`,
+`DHE-RSA-AES256-SHA`,
+`DHE-PSK-AES256-GCM-SHA384`,
+`DHE-PSK-AES128-GCM-SHA256`,
+`PSK-AES256-GCM-SHA384`,
+`PSK-AES128-GCM-SHA256`,
+`DHE-PSK-AES256-CBC-SHA384`,
+`DHE-PSK-AES128-CBC-SHA256`,
+`PSK-AES256-CBC-SHA384`,
+`PSK-AES128-CBC-SHA256`,
+`PSK-AES128-CBC-SHA`,
+`PSK-AES256-CBC-SHA`,
+`DHE-PSK-AES128-CCM`,
+`DHE-PSK-AES256-CCM`,
+`PSK-AES128-CCM`,
+`PSK-AES256-CCM`,
+`PSK-AES128-CCM-8`,
+`PSK-AES256-CCM-8`,
+`DHE-PSK-NULL-SHA384`,
+`DHE-PSK-NULL-SHA256`,
+`PSK-NULL-SHA384`,
+`PSK-NULL-SHA256`,
+`PSK-NULL-SHA`,
+`HC128-MD5`,
+`HC128-SHA`,
+`HC128-B2B256`,
+`AES128-B2B256`,
+`AES256-B2B256`,
+`RABBIT-SHA`,
+`NTRU-RC4-SHA`,
+`NTRU-DES-CBC3-SHA`,
+`NTRU-AES128-SHA`,
+`NTRU-AES256-SHA`,
+`AES128-CCM-8`,
+`AES256-CCM-8`,
+`ECDHE-ECDSA-AES128-CCM`,
+`ECDHE-ECDSA-AES128-CCM-8`,
+`ECDHE-ECDSA-AES256-CCM-8`,
+`ECDHE-RSA-AES128-SHA`,
+`ECDHE-RSA-AES256-SHA`,
+`ECDHE-ECDSA-AES128-SHA`,
+`ECDHE-ECDSA-AES256-SHA`,
+`ECDHE-RSA-RC4-SHA`,
+`ECDHE-RSA-DES-CBC3-SHA`,
+`ECDHE-ECDSA-RC4-SHA`,
+`ECDHE-ECDSA-DES-CBC3-SHA`,
+`AES128-SHA256`,
+`AES256-SHA256`,
+`DHE-RSA-AES128-SHA256`,
+`DHE-RSA-AES256-SHA256`,
+`ECDH-RSA-AES128-SHA`,
+`ECDH-RSA-AES256-SHA`,
+`ECDH-ECDSA-AES128-SHA`,
+`ECDH-ECDSA-AES256-SHA`,
+`ECDH-RSA-RC4-SHA`,
+`ECDH-RSA-DES-CBC3-SHA`,
+`ECDH-ECDSA-RC4-SHA`,
+`ECDH-ECDSA-DES-CBC3-SHA`,
+`AES128-GCM-SHA256`,
+`AES256-GCM-SHA384`,
+`DHE-RSA-AES128-GCM-SHA256`,
+`DHE-RSA-AES256-GCM-SHA384`,
+`ECDHE-RSA-AES128-GCM-SHA256`,
+`ECDHE-RSA-AES256-GCM-SHA384`,
+`ECDHE-ECDSA-AES128-GCM-SHA256`,
+`ECDHE-ECDSA-AES256-GCM-SHA384`,
+`ECDH-RSA-AES128-GCM-SHA256`,
+`ECDH-RSA-AES256-GCM-SHA384`,
+`ECDH-ECDSA-AES128-GCM-SHA256`,
+`ECDH-ECDSA-AES256-GCM-SHA384`,
+`CAMELLIA128-SHA`,
+`DHE-RSA-CAMELLIA128-SHA`,
+`CAMELLIA256-SHA`,
+`DHE-RSA-CAMELLIA256-SHA`,
+`CAMELLIA128-SHA256`,
+`DHE-RSA-CAMELLIA128-SHA256`,
+`CAMELLIA256-SHA256`,
+`DHE-RSA-CAMELLIA256-SHA256`,
+`ECDHE-RSA-AES128-SHA256`,
+`ECDHE-ECDSA-AES128-SHA256`,
+`ECDH-RSA-AES128-SHA256`,
+`ECDH-ECDSA-AES128-SHA256`,
+`ECDHE-RSA-AES256-SHA384`,
+`ECDHE-ECDSA-AES256-SHA384`,
+`ECDH-RSA-AES256-SHA384`,
+`ECDH-ECDSA-AES256-SHA384`,
+`ECDHE-RSA-CHACHA20-POLY1305`,
+`ECDHE-ECDSA-CHACHA20-POLY1305`,
+`DHE-RSA-CHACHA20-POLY1305`,
+`ECDHE-RSA-CHACHA20-POLY1305-OLD`,
+`ECDHE-ECDSA-CHACHA20-POLY1305-OLD`,
+`DHE-RSA-CHACHA20-POLY1305-OLD`,
+`ADH-AES128-SHA`,
+`QSH`,
+`RENEGOTIATION-INFO`,
+`IDEA-CBC-SHA`,
+`ECDHE-ECDSA-NULL-SHA`,
+`ECDHE-PSK-NULL-SHA256`,
+`ECDHE-PSK-AES128-CBC-SHA256`,
+`PSK-CHACHA20-POLY1305`,
+`ECDHE-PSK-CHACHA20-POLY1305`,
+`DHE-PSK-CHACHA20-POLY1305`,
+`EDH-RSA-DES-CBC3-SHA`,
+
+## Schannel
+
+Schannel allows the enabling and disabling of encryption algorithms, but not
+specific ciphersuites. They are
+[defined](https://docs.microsoft.com/windows/desktop/SecCrypto/alg-id) by
+Microsoft.
+
+There is also the case that the selected algorithm is not supported by the
+protocol or does not match the ciphers offered by the server during the SSL
+negotiation. In this case curl will return error
+`CURLE_SSL_CONNECT_ERROR (35) SEC_E_ALGORITHM_MISMATCH`
+and the request will fail.
+
+`CALG_MD2`,
+`CALG_MD4`,
+`CALG_MD5`,
+`CALG_SHA`,
+`CALG_SHA1`,
+`CALG_MAC`,
+`CALG_RSA_SIGN`,
+`CALG_DSS_SIGN`,
+`CALG_NO_SIGN`,
+`CALG_RSA_KEYX`,
+`CALG_DES`,
+`CALG_3DES_112`,
+`CALG_3DES`,
+`CALG_DESX`,
+`CALG_RC2`,
+`CALG_RC4`,
+`CALG_SEAL`,
+`CALG_DH_SF`,
+`CALG_DH_EPHEM`,
+`CALG_AGREEDKEY_ANY`,
+`CALG_HUGHES_MD5`,
+`CALG_SKIPJACK`,
+`CALG_TEK`,
+`CALG_CYLINK_MEK`,
+`CALG_SSL3_SHAMD5`,
+`CALG_SSL3_MASTER`,
+`CALG_SCHANNEL_MASTER_HASH`,
+`CALG_SCHANNEL_MAC_KEY`,
+`CALG_SCHANNEL_ENC_KEY`,
+`CALG_PCT1_MASTER`,
+`CALG_SSL2_MASTER`,
+`CALG_TLS1_MASTER`,
+`CALG_RC5`,
+`CALG_HMAC`,
+`CALG_TLS1PRF`,
+`CALG_HASH_REPLACE_OWF`,
+`CALG_AES_128`,
+`CALG_AES_192`,
+`CALG_AES_256`,
+`CALG_AES`,
+`CALG_SHA_256`,
+`CALG_SHA_384`,
+`CALG_SHA_512`,
+`CALG_ECDH`,
+`CALG_ECMQV`,
+`CALG_ECDSA`,
+`CALG_ECDH_EPHEM`,
+
+As of curl 7.77.0, you can also pass `SCH_USE_STRONG_CRYPTO` as a cipher name
+to [constrain the set of available ciphers as specified in the schannel
+documentation](https://docs.microsoft.com/en-us/windows/win32/secauthn/tls-cipher-suites-in-windows-server-2022).
+Note that the supported ciphers in this case follow the OS version, so if you
+are running an outdated OS you might still be supporting weak ciphers.
+
+## BearSSL
+
+BearSSL ciphers can be specified by either the OpenSSL name (`ECDHE-RSA-AES128-GCM-SHA256`) or the IANA name (`TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256`).
+
+Since BearSSL 0.1:
+
+`DES-CBC3-SHA`
+`AES128-SHA`
+`AES256-SHA`
+`AES128-SHA256`
+`AES256-SHA256`
+`AES128-GCM-SHA256`
+`AES256-GCM-SHA384`
+`ECDH-ECDSA-DES-CBC3-SHA`
+`ECDH-ECDSA-AES128-SHA`
+`ECDH-ECDSA-AES256-SHA`
+`ECDHE-ECDSA-DES-CBC3-SHA`
+`ECDHE-ECDSA-AES128-SHA`
+`ECDHE-ECDSA-AES256-SHA`
+`ECDH-RSA-DES-CBC3-SHA`
+`ECDH-RSA-AES128-SHA`
+`ECDH-RSA-AES256-SHA`
+`ECDHE-RSA-DES-CBC3-SHA`
+`ECDHE-RSA-AES128-SHA`
+`ECDHE-RSA-AES256-SHA`
+`ECDHE-ECDSA-AES128-SHA256`
+`ECDHE-ECDSA-AES256-SHA384`
+`ECDH-ECDSA-AES128-SHA256`
+`ECDH-ECDSA-AES256-SHA384`
+`ECDHE-RSA-AES128-SHA256`
+`ECDHE-RSA-AES256-SHA384`
+`ECDH-RSA-AES128-SHA256`
+`ECDH-RSA-AES256-SHA384`
+`ECDHE-ECDSA-AES128-GCM-SHA256`
+`ECDHE-ECDSA-AES256-GCM-SHA384`
+`ECDH-ECDSA-AES128-GCM-SHA256`
+`ECDH-ECDSA-AES256-GCM-SHA384`
+`ECDHE-RSA-AES128-GCM-SHA256`
+`ECDHE-RSA-AES256-GCM-SHA384`
+`ECDH-RSA-AES128-GCM-SHA256`
+`ECDH-RSA-AES256-GCM-SHA384`
+
+Since BearSSL 0.2:
+
+`ECDHE-RSA-CHACHA20-POLY1305`
+`ECDHE-ECDSA-CHACHA20-POLY1305`
+
+Since BearSSL 0.6:
+
+`AES128-CCM`
+`AES256-CCM`
+`AES128-CCM8`
+`AES256-CCM8`
+`ECDHE-ECDSA-AES128-CCM`
+`ECDHE-ECDSA-AES256-CCM`
+`ECDHE-ECDSA-AES128-CCM8`
+`ECDHE-ECDSA-AES256-CCM8`
diff --git a/curl/docs/CMakeLists.txt b/curl/docs/CMakeLists.txt
new file mode 100644
index 0000000..b3230ec
--- /dev/null
+++ b/curl/docs/CMakeLists.txt
@@ -0,0 +1,24 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+#add_subdirectory(examples)
+add_subdirectory(libcurl)
+add_subdirectory(cmdline-opts)
diff --git a/curl/docs/CODE_OF_CONDUCT.md b/curl/docs/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..1f71c38
--- /dev/null
+++ b/curl/docs/CODE_OF_CONDUCT.md
@@ -0,0 +1,32 @@
+Contributor Code of Conduct
+===========================
+
+As contributors and maintainers of this project, we pledge to respect all
+people who contribute through reporting issues, posting feature requests,
+updating documentation, submitting pull requests or patches, and other
+activities.
+
+We are committed to making participation in this project a harassment-free
+experience for everyone, regardless of level of experience, gender, gender
+identity and expression, sexual orientation, disability, personal appearance,
+body size, race, ethnicity, age, or religion.
+
+Examples of unacceptable behavior by participants include the use of sexual
+language or imagery, derogatory comments or personal attacks, trolling, public
+or private harassment, insults, or other unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct. Project maintainers who do not
+follow the Code of Conduct may be removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by opening an issue or contacting one or more of the project
+maintainers.
+
+This Code of Conduct is adapted from the [Contributor
+Covenant](https://contributor-covenant.org/), version 1.1.0, available at
+[https://contributor-covenant.org/version/1/1/0/](https://contributor-covenant.org/version/1/1/0/)
diff --git a/curl/docs/CODE_REVIEW.md b/curl/docs/CODE_REVIEW.md
new file mode 100644
index 0000000..20d1be8
--- /dev/null
+++ b/curl/docs/CODE_REVIEW.md
@@ -0,0 +1,168 @@
+# How to do code reviews for curl
+
+Anyone and everyone is encouraged and welcome to review code submissions in
+curl. This is a guide on what to check for and how to perform a successful
+code review.
+
+## All submissions should get reviewed
+
+All pull requests and patches submitted to the project should be reviewed by
+at least one experienced curl maintainer before that code is accepted and
+merged.
+
+## Let the tools and tests take the first rounds
+
+On initial pull requests, let the tools and tests do their job first and then
+start out by helping the submitter understand the test failures and tool
+alerts.
+
+## How to provide feedback to author
+
+Be nice. Ask questions. Provide examples or suggestions of improvements.
+Assume the best intentions. Remember language barriers.
+
+All first-time contributors can become regulars. Let's help them go there.
+
+## Is this a change we want?
+
+If this is not a change that seems to be aligned with the project's path
+forward and as such cannot be accepted, inform the author about this sooner
+rather than later. Do it gently and explain why and possibly what could be
+done to make it more acceptable.
+
+## API/ABI stability or changed behavior
+
+Changing the API and the ABI may be fine in a change but it needs to be done
+deliberately and carefully. If not, a reviewer must help the author to realize
+the mistake.
+
+curl and libcurl are similarly strict on not modifying existing behavior. API
+and ABI stability is not enough, the behavior should also remain intact as far
+as possible.
+
+## Code style
+
+Most code style nits are detected by checksrc but not all. Only leave remarks
+on style deviation once checksrc does not find anymore.
+
+Minor nits from fresh submitters can also be handled by the maintainer when
+merging, in case it seems like the submitter is not clear on what to do. We
+want to make the process fun and exciting for new contributors.
+
+## Encourage consistency
+
+Make sure new code is written in a similar style as existing code. Naming,
+logic, conditions, etc.
+
+## Are pointers always non-NULL?
+
+If a function or code rely on pointers being non-NULL, take an extra look if
+that seems to be a fair assessment.
+
+## Asserts
+
+Conditions that should never be false can be verified with `DEBUGASSERT()`
+calls to get caught in tests and debugging easier, while not having an impact
+on final or release builds.
+
+## Memory allocation
+
+Can the mallocs be avoided? Do not introduce mallocs in any hot paths. If
+there are (new) mallocs, can they be combined into fewer calls?
+
+Are all allocations handled in errorpaths to avoid leaks and crashes?
+
+## Thread-safety
+
+We do not like static variables as they break thread-safety and prevent
+functions from being reentrant.
+
+## Should features be `#ifdef`ed?
+
+Features and functionality may not be present everywhere and should therefore
+be `#ifdef`ed. Additionally, some features should be possible to switch on/off
+in the build.
+
+Write `#ifdef`s to be as little of a "maze" as possible.
+
+## Does it look portable enough?
+
+curl runs "everywhere". Does the code take a reasonable stance and enough
+precautions to be possible to build and run on most platforms?
+
+Remember that we live by C89 restrictions.
+
+## Tests and testability
+
+New features should be added in conjunction with one or more test cases.
+Ideally, functions should also be written so that unit tests can be done to
+test individual functions.
+
+## Documentation
+
+New features or changes to existing functionality **must** be accompanied by
+updated documentation. Submitting that in a separate follow-up pull request is
+not OK. A code review must also verify that the submitted documentation update
+matches the code submission.
+
+English is not everyone's first language, be mindful of this and help the
+submitter improve the text if it needs a rewrite to read better.
+
+## Code should not be hard to understand
+
+Source code should be written to maximize readability and be easy to
+understand.
+
+## Functions should not be large
+
+A single function should never be large as that makes it hard to follow and
+understand all the exit points and state changes. Some existing functions in
+curl certainly violate this ground rule but when reviewing new code we should
+propose splitting into smaller functions.
+
+## Duplication is evil
+
+Anything that looks like duplicated code is a red flag. Anything that seems to
+introduce code that we *should* already have or provide needs a closer check.
+
+## Sensitive data
+
+When credentials are involved, take an extra look at what happens with this
+data. Where it comes from and where it goes.
+
+## Variable types differ
+
+`size_t` is not a fixed size. `time_t` can be signed or unsigned and have
+different sizes. Relying on variable sizes is a red flag.
+
+Also remember that endianness and >= 32 bit accesses to unaligned addresses
+are problematic areas.
+
+## Integer overflows
+
+Be careful about integer overflows. Some variable types can be either 32 bit
+or 64 bit. Integer overflows must be detected and acted on *before* they
+happen.
+
+## Dangerous use of functions
+
+Maybe use of `realloc()` should rather use the dynbuf functions?
+
+Do not allow new code that grows buffers without using dynbuf.
+
+Use of C functions that rely on a terminating zero must only be used on data
+that really do have a zero terminating zero.
+
+## Dangerous "data styles"
+
+Make extra precautions and verify that memory buffers that need a terminating
+zero always have exactly that. Buffers *without* a zero terminator must not be
+used as input to string functions.
+
+# Commit messages
+
+Tightly coupled with a code review is making sure that the commit message is
+good. It is the responsibility of the person who merges the code to make sure
+that the commit message follows our standard (detailed in the
+[CONTRIBUTE.md](CONTRIBUTE.md) document). This includes making sure the PR
+identifies related issues and giving credit to reporters and helpers.
diff --git a/curl/docs/CODE_STYLE.md b/curl/docs/CODE_STYLE.md
new file mode 100644
index 0000000..5481aa5
--- /dev/null
+++ b/curl/docs/CODE_STYLE.md
@@ -0,0 +1,310 @@
+# curl C code style
+
+Source code that has a common style is easier to read than code that uses
+different styles in different places. It helps making the code feel like one
+single code base. Easy-to-read is an important property of code and helps
+making it easier to review when new things are added and it helps debugging
+code when developers are trying to figure out why things go wrong. A unified
+style is more important than individual contributors having their own personal
+tastes satisfied.
+
+Our C code has a few style rules. Most of them are verified and upheld by the
+`scripts/checksrc.pl` script. Invoked with `make checksrc` or even by default
+by the build system when built after `./configure --enable-debug` has been
+used.
+
+It is normally not a problem for anyone to follow the guidelines, as you just
+need to copy the style already used in the source code and there are no
+particularly unusual rules in our set of rules.
+
+We also work hard on writing code that are warning-free on all the major
+platforms and in general on as many platforms as possible. Code that obviously
+will cause warnings will not be accepted as-is.
+
+## Naming
+
+Try using a non-confusing naming scheme for your new functions and variable
+names. It does not necessarily have to mean that you should use the same as in
+other places of the code, just that the names should be logical,
+understandable and be named according to what they are used for. File-local
+functions should be made static. We like lower case names.
+
+See the [INTERNALS](https://curl.se/dev/internals.html#symbols) document on
+how we name non-exported library-global symbols.
+
+## Indenting
+
+We use only spaces for indentation, never TABs. We use two spaces for each new
+open brace.
+
+```c
+if(something_is_true) {
+  while(second_statement == fine) {
+    moo();
+  }
+}
+```
+
+## Comments
+
+Since we write C89 code, **//** comments are not allowed. They were not
+introduced in the C standard until C99. We use only __/* comments */__.
+
+```c
+/* this is a comment */
+```
+
+## Long lines
+
+Source code in curl may never be wider than 79 columns and there are two
+reasons for maintaining this even in the modern era of large and high
+resolution screens:
+
+1. Narrower columns are easier to read than wide ones. There's a reason
+   newspapers have used columns for decades or centuries.
+
+2. Narrower columns allow developers to easier show multiple pieces of code
+   next to each other in different windows. I often have two or three source
+   code windows next to each other on the same screen - as well as multiple
+   terminal and debugging windows.
+
+## Braces
+
+In if/while/do/for expressions, we write the open brace on the same line as
+the keyword and we then set the closing brace on the same indentation level as
+the initial keyword. Like this:
+
+```c
+if(age < 40) {
+  /* clearly a youngster */
+}
+```
+
+You may omit the braces if they would contain only a one-line statement:
+
+```c
+if(!x)
+  continue;
+```
+
+For functions the opening brace should be on a separate line:
+
+```c
+int main(int argc, char **argv)
+{
+  return 1;
+}
+```
+
+## 'else' on the following line
+
+When adding an **else** clause to a conditional expression using braces, we
+add it on a new line after the closing brace. Like this:
+
+```c
+if(age < 40) {
+  /* clearly a youngster */
+}
+else {
+  /* probably grumpy */
+}
+```
+
+## No space before parentheses
+
+When writing expressions using if/while/do/for, there shall be no space
+between the keyword and the open parenthesis. Like this:
+
+```c
+while(1) {
+  /* loop forever */
+}
+```
+
+## Use boolean conditions
+
+Rather than test a conditional value such as a bool against TRUE or FALSE, a
+pointer against NULL or != NULL and an int against zero or not zero in
+if/while conditions we prefer:
+
+```c
+result = do_something();
+if(!result) {
+  /* something went wrong */
+  return result;
+}
+```
+
+## No assignments in conditions
+
+To increase readability and reduce complexity of conditionals, we avoid
+assigning variables within if/while conditions. We frown upon this style:
+
+```c
+if((ptr = malloc(100)) == NULL)
+  return NULL;
+```
+
+and instead we encourage the above version to be spelled out more clearly:
+
+```c
+ptr = malloc(100);
+if(!ptr)
+  return NULL;
+```
+
+## New block on a new line
+
+We never write multiple statements on the same source line, even for short
+if() conditions.
+
+```c
+if(a)
+  return TRUE;
+else if(b)
+  return FALSE;
+```
+
+and NEVER:
+
+```c
+if(a) return TRUE;
+else if(b) return FALSE;
+```
+
+## Space around operators
+
+Please use spaces on both sides of operators in C expressions. Postfix **(),
+[], ->, ., ++, --** and Unary **+, -, !, ~, &** operators excluded they should
+have no space.
+
+Examples:
+
+```c
+bla = func();
+who = name[0];
+age += 1;
+true = !false;
+size += -2 + 3 * (a + b);
+ptr->member = a++;
+struct.field = b--;
+ptr = &address;
+contents = *pointer;
+complement = ~bits;
+empty = (!*string) ? TRUE : FALSE;
+```
+
+## No parentheses for return values
+
+We use the 'return' statement without extra parentheses around the value:
+
+```c
+int works(void)
+{
+  return TRUE;
+}
+```
+
+## Parentheses for sizeof arguments
+
+When using the sizeof operator in code, we prefer it to be written with
+parentheses around its argument:
+
+```c
+int size = sizeof(int);
+```
+
+## Column alignment
+
+Some statements cannot be completed on a single line because the line would be
+too long, the statement too hard to read, or due to other style guidelines
+above. In such a case the statement will span multiple lines.
+
+If a continuation line is part of an expression or sub-expression then you
+should align on the appropriate column so that it's easy to tell what part of
+the statement it is. Operators should not start continuation lines. In other
+cases follow the 2-space indent guideline. Here are some examples from
+libcurl:
+
+```c
+if(Curl_pipeline_wanted(handle->multi, CURLPIPE_HTTP1) &&
+   (handle->set.httpversion != CURL_HTTP_VERSION_1_0) &&
+   (handle->set.httpreq == HTTPREQ_GET ||
+    handle->set.httpreq == HTTPREQ_HEAD))
+  /* did not ask for HTTP/1.0 and a GET or HEAD */
+  return TRUE;
+```
+
+If no parenthesis, use the default indent:
+
+```c
+data->set.http_disable_hostname_check_before_authentication =
+  (0 != va_arg(param, long)) ? TRUE : FALSE;
+```
+
+Function invoke with an open parenthesis:
+
+```c
+if(option) {
+  result = parse_login_details(option, strlen(option),
+                               (userp ? &user : NULL),
+                               (passwdp ? &passwd : NULL),
+                               NULL);
+}
+```
+
+Align with the "current open" parenthesis:
+
+```c
+DEBUGF(infof(data, "Curl_pp_readresp_ %d bytes of trailing "
+             "server response left\n",
+             (int)clipamount));
+```
+
+## Platform dependent code
+
+Use **#ifdef HAVE_FEATURE** to do conditional code. We avoid checking for
+particular operating systems or hardware in the #ifdef lines. The HAVE_FEATURE
+shall be generated by the configure script for unix-like systems and they are
+hard-coded in the `config-[system].h` files for the others.
+
+We also encourage use of macros/functions that possibly are empty or defined
+to constants when libcurl is built without that feature, to make the code
+seamless. Like this example where the **magic()** function works differently
+depending on a build-time conditional:
+
+```c
+#ifdef HAVE_MAGIC
+void magic(int a)
+{
+  return a + 2;
+}
+#else
+#define magic(x) 1
+#endif
+
+int content = magic(3);
+```
+
+## No typedefed structs
+
+Use structs by all means, but do not typedef them. Use the `struct name` way
+of identifying them:
+
+```c
+struct something {
+   void *valid;
+   size_t way_to_write;
+};
+struct something instance;
+```
+
+**Not okay**:
+
+```c
+typedef struct {
+   void *wrong;
+   size_t way_to_write;
+} something;
+something instance;
+```
diff --git a/curl/docs/CONTRIBUTE.md b/curl/docs/CONTRIBUTE.md
new file mode 100644
index 0000000..16ea8fe
--- /dev/null
+++ b/curl/docs/CONTRIBUTE.md
@@ -0,0 +1,274 @@
+# Contributing to the curl project
+
+This document is intended to offer guidelines on how to best contribute to the
+curl project. This concerns new features as well as corrections to existing
+flaws or bugs.
+
+## Learning curl
+
+### Join the Community
+
+Skip over to [https://curl.se/mail/](https://curl.se/mail/) and join
+the appropriate mailing list(s). Read up on details before you post
+questions. Read this file before you start sending patches. We prefer
+questions sent to and discussions being held on the mailing list(s), not sent
+to individuals.
+
+Before posting to one of the curl mailing lists, please read up on the
+[mailing list etiquette](https://curl.se/mail/etiquette.html).
+
+We also hang out on IRC in #curl on libera.chat
+
+If you are at all interested in the code side of things, consider clicking
+'watch' on the [curl repo on GitHub](https://github.com/curl/curl) to be
+notified of pull requests and new issues posted there.
+
+### License and copyright
+
+When contributing with code, you agree to put your changes and new code under
+the same license curl and libcurl is already using unless stated and agreed
+otherwise.
+
+If you add a larger piece of code, you can opt to make that file or set of
+files to use a different license as long as they do not enforce any changes to
+the rest of the package and they make sense. Such "separate parts" can not be
+GPL licensed (as we do not want copyleft to affect users of libcurl) but they
+must use "GPL compatible" licenses (as we want to allow users to use libcurl
+properly in GPL licensed environments).
+
+When changing existing source code, you do not alter the copyright of the
+original file(s). The copyright will still be owned by the original creator(s)
+or those who have been assigned copyright by the original author(s).
+
+By submitting a patch to the curl project, you are assumed to have the right
+to the code and to be allowed by your employer or whatever to hand over that
+patch/code to us. We will credit you for your changes as far as possible, to
+give credit but also to keep a trace back to who made what changes. Please
+always provide us with your full real name when contributing,
+
+### What To Read
+
+Source code, the man pages, the [INTERNALS
+document](https://curl.se/dev/internals.html),
+[TODO](https://curl.se/docs/todo.html),
+[KNOWN_BUGS](https://curl.se/docs/knownbugs.html) and the [most recent
+changes](https://curl.se/dev/sourceactivity.html) in git. Just lurking on
+the [curl-library mailing
+list](https://curl.se/mail/list.cgi?list=curl-library) will give you a
+lot of insights on what's going on right now. Asking there is a good idea too.
+
+## Write a good patch
+
+### Follow code style
+
+When writing C code, follow the
+[CODE_STYLE](https://curl.se/dev/code-style.html) already established in
+the project. Consistent style makes code easier to read and mistakes less
+likely to happen. Run `make checksrc` before you submit anything, to make sure
+you follow the basic style. That script does not verify everything, but if it
+complains you know you have work to do.
+
+### Non-clobbering All Over
+
+When you write new functionality or fix bugs, it is important that you do not
+fiddle all over the source files and functions. Remember that it is likely
+that other people have done changes in the same source files as you have and
+possibly even in the same functions. If you bring completely new
+functionality, try writing it in a new source file. If you fix bugs, try to
+fix one bug at a time and send them as separate patches.
+
+### Write Separate Changes
+
+It is annoying when you get a huge patch from someone that is said to fix 511
+odd problems, but discussions and opinions do not agree with 510 of them - or
+509 of them were already fixed in a different way. Then the person merging
+this change needs to extract the single interesting patch from somewhere
+within the huge pile of source, and that creates a lot of extra work.
+
+Preferably, each fix that corrects a problem should be in its own patch/commit
+with its own description/commit message stating exactly what they correct so
+that all changes can be selectively applied by the maintainer or other
+interested parties.
+
+Also, separate changes enable bisecting much better for tracking problems
+and regression in the future.
+
+### Patch Against Recent Sources
+
+Please try to get the latest available sources to make your patches against.
+It makes the lives of the developers so much easier. The best is if you get
+the most up-to-date sources from the git repository, but the latest release
+archive is quite OK as well.
+
+### Documentation
+
+Writing docs is dead boring and one of the big problems with many open source
+projects. But someone's gotta do it. It makes things a lot easier if you
+submit a small description of your fix or your new features with every
+contribution so that it can be swiftly added to the package documentation.
+
+The documentation is always made in man pages (nroff formatted) or plain
+ASCII files. All HTML files on the website and in the release archives are
+generated from the nroff/ASCII versions.
+
+### Test Cases
+
+Since the introduction of the test suite, we can quickly verify that the main
+features are working as they are supposed to. To maintain this situation and
+improve it, all new features and functions that are added need to be tested
+in the test suite. Every feature that is added should get at least one valid
+test case that verifies that it works as documented. If every submitter also
+posts a few test cases, it will not end up as a heavy burden on a single person!
+
+If you do not have test cases or perhaps you have done something that is hard
+to write tests for, do explain exactly how you have otherwise tested and
+verified your changes.
+
+## Sharing Your Changes
+
+### How to get your changes into the main sources
+
+Ideally you file a [pull request on
+GitHub](https://github.com/curl/curl/pulls), but you can also send your plain
+patch to [the curl-library mailing
+list](https://curl.se/mail/list.cgi?list=curl-library).
+
+Either way, your change will be reviewed and discussed there and you will be
+expected to correct flaws pointed out and update accordingly, or the change
+risks stalling and eventually just getting deleted without action. As a
+submitter of a change, you are the owner of that change until it has been merged.
+
+Respond on the list or on github about the change and answer questions and/or
+fix nits/flaws. This is important. We will take lack of replies as a sign that
+you are not anxious to get your patch accepted and we tend to simply drop such
+changes.
+
+### About pull requests
+
+With github it is easy to send a [pull
+request](https://github.com/curl/curl/pulls) to the curl project to have
+changes merged.
+
+We strongly prefer pull requests to mailed patches, as it makes it a proper
+git commit that is easy to merge and they are easy to track and not that easy
+to lose in the flood of many emails, like they sometimes do on the mailing
+lists.
+
+Every pull request submitted will automatically be
+tested in several different ways. [See CI.md for more
+information](https://github.com/curl/curl/blob/master/tests/CI.md).
+
+Sometimes the tests fail due to a dependency service temporarily being offline
+or otherwise unavailable, eg. package downloads. In this case you can just
+try to update your pull requests to rerun the tests later as described below.
+
+You can update your pull requests by pushing new commits or force-pushing
+changes to existing commits. Force-pushing an amended commit without any
+actual content changed also allows you to retrigger the tests for that commit.
+
+When you adjust your pull requests after review, consider squashing the
+commits so that we can review the full updated version more easily.
+
+### Making quality patches
+
+Make the patch against as recent source versions as possible.
+
+If you have followed the tips in this document and your patch still has not been
+incorporated or responded to after some weeks, consider resubmitting it to the
+list or better yet: change it to a pull request.
+
+### Write good commit messages
+
+A short guide to how to write commit messages in the curl project.
+
+    ---- start ----
+    [area]: [short line describing the main effect]
+           -- empty line --
+    [full description, no wider than 72 columns that describe as much as
+    possible as to why this change is made, and possibly what things
+    it fixes and everything else that is related]
+           -- empty line --
+    [Closes/Fixes #1234 - if this closes or fixes a github issue]
+    [Bug: URL to source of the report or more related discussion]
+    [Reported-by: John Doe - credit the reporter]
+    [whatever-else-by: credit all helpers, finders, doers]
+    ---- stop ----
+
+The first line is a succinct description of the change:
+
+ - use the imperative, present tense: "change" not "changed" nor "changes"
+ - do not capitalize first letter
+ - no dot (.) at the end
+
+The `[area]` in the first line can be `http2`, `cookies`, `openssl` or
+similar. There's no fixed list to select from but using the same "area" as
+other related changes could make sense.
+
+Do not forget to use commit --author="" if you commit someone else's work, and
+make sure that you have your own user and email setup correctly in git before
+you commit
+
+### Write Access to git Repository
+
+If you are a frequent contributor, you may be given push access to the git
+repository and then you will be able to push your changes straight into the git
+repo instead of sending changes as pull requests or by mail as patches.
+
+Just ask if this is what you would want. You will be required to have posted
+several high quality patches first, before you can be granted push access.
+
+### How To Make a Patch with git
+
+You need to first checkout the repository:
+
+    git clone https://github.com/curl/curl.git
+
+You then proceed and edit all the files you like and you commit them to your
+local repository:
+
+    git commit [file]
+
+As usual, group your commits so that you commit all changes at once that
+constitute a logical change.
+
+Once you have done all your commits and you are happy with what you see, you
+can make patches out of your changes that are suitable for mailing:
+
+    git format-patch remotes/origin/master
+
+This creates files in your local directory named NNNN-[name].patch for each
+commit.
+
+Now send those patches off to the curl-library list. You can of course opt to
+do that with the 'git send-email' command.
+
+### How To Make a Patch without git
+
+Keep a copy of the unmodified curl sources. Make your changes in a separate
+source tree. When you think you have something that you want to offer the
+curl community, use GNU diff to generate patches.
+
+If you have modified a single file, try something like:
+
+    diff -u unmodified-file.c my-changed-one.c > my-fixes.diff
+
+If you have modified several files, possibly in different directories, you
+can use diff recursively:
+
+    diff -ur curl-original-dir curl-modified-sources-dir > my-fixes.diff
+
+The GNU diff and GNU patch tools exist for virtually all platforms, including
+all kinds of Unixes and Windows:
+
+For unix-like operating systems:
+
+ - [https://savannah.gnu.org/projects/patch/](https://savannah.gnu.org/projects/patch/)
+ - [https://www.gnu.org/software/diffutils/](https://www.gnu.org/software/diffutils/)
+
+For Windows:
+
+ - [https://gnuwin32.sourceforge.io/packages/patch.htm](https://gnuwin32.sourceforge.io/packages/patch.htm)
+ - [https://gnuwin32.sourceforge.io/packages/diffutils.htm](https://gnuwin32.sourceforge.io/packages/diffutils.htm)
+
+### Useful resources
+ - [Webinar on getting code into cURL](https://www.youtube.com/watch?v=QmZ3W1d6LQI)
diff --git a/curl/docs/CURL-DISABLE.md b/curl/docs/CURL-DISABLE.md
new file mode 100644
index 0000000..a2e75f1
--- /dev/null
+++ b/curl/docs/CURL-DISABLE.md
@@ -0,0 +1,136 @@
+# Code defines to disable features and protocols
+
+## CURL_DISABLE_ALTSVC
+
+Disable support for Alt-Svc: HTTP headers.
+
+## CURL_DISABLE_COOKIES
+
+Disable support for HTTP cookies.
+
+## CURL_DISABLE_CRYPTO_AUTH
+
+Disable support for authentication methods using crypto.
+
+## CURL_DISABLE_DICT
+
+Disable the DICT protocol
+
+## CURL_DISABLE_DOH
+
+Disable DNS-over-HTTPS
+
+## CURL_DISABLE_FILE
+
+Disable the FILE protocol
+
+## CURL_DISABLE_FTP
+
+Disable the FTP (and FTPS) protocol
+
+## CURL_DISABLE_GETOPTIONS
+
+Disable the `curl_easy_options` API calls that lets users get information
+about existing options to `curl_easy_setopt`.
+
+## CURL_DISABLE_GOPHER
+
+Disable the GOPHER protocol.
+
+## CURL_DISABLE_HSTS
+
+Disable the HTTP Strict Transport Security support.
+
+## CURL_DISABLE_HTTP
+
+Disable the HTTP(S) protocols. Note that this then also disable HTTP proxy
+support.
+
+## CURL_DISABLE_HTTP_AUTH
+
+Disable support for all HTTP authentication methods.
+
+## CURL_DISABLE_IMAP
+
+Disable the IMAP(S) protocols.
+
+## CURL_DISABLE_LDAP
+
+Disable the LDAP(S) protocols.
+
+## CURL_DISABLE_LDAPS
+
+Disable the LDAPS protocol.
+
+## CURL_DISABLE_LIBCURL_OPTION
+
+Disable the --libcurl option from the curl tool.
+
+## CURL_DISABLE_MIME
+
+Disable MIME support.
+
+## CURL_DISABLE_MQTT
+
+Disable MQTT support.
+
+## CURL_DISABLE_NETRC
+
+Disable the netrc parser.
+
+## CURL_DISABLE_NTLM
+
+Disable support for NTLM.
+
+## CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG
+
+Disable the auto load config support in the OpenSSL backend.
+
+## CURL_DISABLE_PARSEDATE
+
+Disable date parsing
+
+## CURL_DISABLE_POP3
+
+Disable the POP3 protocol
+
+## CURL_DISABLE_PROGRESS_METER
+
+Disable the built-in progress meter
+
+## CURL_DISABLE_PROXY
+
+Disable support for proxies
+
+## CURL_DISABLE_RTSP
+
+Disable the RTSP protocol.
+
+## CURL_DISABLE_SHUFFLE_DNS
+
+Disable the shuffle DNS feature
+
+## CURL_DISABLE_SMB
+
+Disable the SMB(S) protocols
+
+## CURL_DISABLE_SMTP
+
+Disable the SMTP(S) protocols
+
+## CURL_DISABLE_SOCKETPAIR
+
+Disable the use of socketpair internally to allow waking up and canceling
+curl_multi_poll().
+
+## CURL_DISABLE_TELNET
+
+Disable the TELNET protocol
+
+## CURL_DISABLE_TFTP
+
+Disable the TFTP protocol
+
+## CURL_DISABLE_VERBOSE_STRINGS
+
+Disable verbose strings and error messages.
diff --git a/curl/docs/DEPRECATE.md b/curl/docs/DEPRECATE.md
new file mode 100644
index 0000000..4d58f56
--- /dev/null
+++ b/curl/docs/DEPRECATE.md
@@ -0,0 +1,46 @@
+# Items to be removed from future curl releases
+
+If any of these deprecated features is a cause for concern for you, please
+email the
+[curl-library mailing list](https://lists.haxx.se/listinfo/curl-library)
+as soon as possible and explain to us why this is a problem for you and
+how your use case cannot be satisfied properly using a workaround.
+
+## NSS
+
+We remove support for building curl with the NSS TLS library in August 2022.
+
+- There are very few users left who use curl+NSS
+- NSS has very few users outside of curl as well (primarily Firefox)
+- NSS is harder than ever to find documentation for
+- NSS was always "best" used with Red Hat Linux when they provided additional
+  features on top of the regular NSS that is not shipped by the vanilla library
+
+Starting in 7.82.0, building curl to use NSS configure requires the additional
+flag --with-nss-deprecated in an attempt to highlight these plans.
+
+## NPN
+
+We make selecting NPN a no-op starting in August 2022.
+
+**Next Protocol Negotiation** is a TLS extension that was created and used for
+agreeing to use the SPDY protocol (the precursor to HTTP/2) for HTTPS. In the
+early days of HTTP/2, before the spec was finalized and shipped, the protocol
+could be enabled using this extension with some servers.
+
+curl supports the NPN extension with some TLS backends since then, with a
+command line option `--npn` and in libcurl with `CURLOPT_SSL_ENABLE_NPN`.
+
+HTTP/2 proper is made to use the ALPN (Application-Layer Protocol Negotiation)
+extension and the NPN extension has no purposes anymore. The HTTP/2 spec was
+published in May 2015.
+
+Today, use of NPN in the wild should be extremely rare and most likely totally
+extinct. Chrome removed NPN support in Chrome 51, shipped in
+June 2016. Removed in Firefox 53, April 2017.
+
+## past removals
+
+ - Pipelining
+ - axTLS
+ - PolarSSL
diff --git a/curl/docs/DYNBUF.md b/curl/docs/DYNBUF.md
new file mode 100644
index 0000000..a984a41
--- /dev/null
+++ b/curl/docs/DYNBUF.md
@@ -0,0 +1,108 @@
+# dynbuf
+
+This is the internal module for creating and handling "dynamic buffers". This
+means buffers that can be appended to, dynamically and grow to adapt.
+
+There will always be a terminating zero put at the end of the dynamic buffer.
+
+The `struct dynbuf` is used to hold data for each instance of a dynamic
+buffer. The members of that struct **MUST NOT** be accessed or modified
+without using the dedicated dynbuf API.
+
+## init
+
+```c
+void Curl_dyn_init(struct dynbuf *s, size_t toobig);
+```
+
+This inits a struct to use for dynbuf and it cannot fail. The `toobig` value
+**must** be set to the maximum size we allow this buffer instance to grow to.
+The functions below will return `CURLE_OUT_OF_MEMORY` when hitting this limit.
+
+## free
+
+```c
+void Curl_dyn_free(struct dynbuf *s);
+```
+
+Free the associated memory and clean up. After a free, the `dynbuf` struct can
+be re-used to start appending new data to.
+
+## addn
+
+```c
+CURLcode Curl_dyn_addn(struct dynbuf *s, const void *mem, size_t len);
+```
+
+Append arbitrary data of a given length to the end of the buffer.
+
+## add
+
+```c
+CURLcode Curl_dyn_add(struct dynbuf *s, const char *str);
+```
+
+Append a C string to the end of the buffer.
+
+## addf
+
+```c
+CURLcode Curl_dyn_addf(struct dynbuf *s, const char *fmt, ...);
+```
+
+Append a `printf()`-style string to the end of the buffer.
+
+## vaddf
+
+```c
+CURLcode Curl_dyn_vaddf(struct dynbuf *s, const char *fmt, va_list ap);
+```
+
+Append a `vprintf()`-style string to the end of the buffer.
+
+## reset
+
+```c
+void Curl_dyn_reset(struct dynbuf *s);
+```
+
+Reset the buffer length, but leave the allocation.
+
+## tail
+
+```c
+CURLcode Curl_dyn_tail(struct dynbuf *s, size_t length);
+```
+
+Keep `length` bytes of the buffer tail (the last `length` bytes of the
+buffer). The rest of the buffer is dropped. The specified `length` must not be
+larger than the buffer length.
+
+## ptr
+
+```c
+char *Curl_dyn_ptr(const struct dynbuf *s);
+```
+
+Returns a `char *` to the buffer if it has a length, otherwise may return
+NULL. Since the buffer may be reallocated, this pointer should not be trusted
+or used anymore after the next buffer manipulation call.
+
+## uptr
+
+```c
+unsigned char *Curl_dyn_uptr(const struct dynbuf *s);
+```
+
+Returns an `unsigned char *` to the buffer if it has a length, otherwise may
+return NULL. Since the buffer may be reallocated, this pointer should not be
+trusted or used anymore after the next buffer manipulation call.
+
+## len
+
+```c
+size_t Curl_dyn_len(const struct dynbuf *s);
+```
+
+Returns the length of the buffer in bytes. Does not include the terminating
+zero byte.
diff --git a/curl/docs/EXPERIMENTAL.md b/curl/docs/EXPERIMENTAL.md
new file mode 100644
index 0000000..06deb5f
--- /dev/null
+++ b/curl/docs/EXPERIMENTAL.md
@@ -0,0 +1,24 @@
+# Experimental
+
+Some features and functionality in curl and libcurl are considered
+**EXPERIMENTAL**.
+
+Experimental support in curl means:
+
+1. Experimental features are provided to allow users to try them out and
+   provide feedback on functionality and API etc before they ship and get
+   "carved in stone".
+2. You must enable the feature when invoking configure as otherwise curl will
+   not be built with the feature present.
+3. We strongly advice against using this feature in production.
+4. **We reserve the right to change behavior** of the feature without sticking
+   to our API/ABI rules as we do for regular features, as long as it is marked
+   experimental.
+5. Experimental features are clearly marked so in documentation. Beware.
+
+## Experimental features right now
+
+ - The Hyper HTTP backend
+ - HTTP/3 support and options
+ - `CURLSSLOPT_NATIVE_CA` (No configure option, feature built in when supported)
+ - The headers API: `curl_easy_header` and `curl_easy_nextheader`.
diff --git a/curl/docs/FAQ b/curl/docs/FAQ
new file mode 100644
index 0000000..b92f1bb
--- /dev/null
+++ b/curl/docs/FAQ
@@ -0,0 +1,1540 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+FAQ
+
+ 1. Philosophy
+  1.1 What is cURL?
+  1.2 What is libcurl?
+  1.3 What is curl not?
+  1.4 When will you make curl do XXXX ?
+  1.5 Who makes curl?
+  1.6 What do you get for making curl?
+  1.7 What about CURL from curl.com?
+  1.8 I have a problem, who do I mail?
+  1.9 Where do I buy commercial support for curl?
+  1.10 How many are using curl?
+  1.11 Why do you not update ca-bundle.crt
+  1.12 I have a problem, who can I chat with?
+  1.13 curl's ECCN number?
+  1.14 How do I submit my patch?
+  1.15 How do I port libcurl to my OS?
+
+ 2. Install Related Problems
+  2.1 configure fails when using static libraries
+  2.2 Does curl work/build with other SSL libraries?
+  2.4 Does curl support SOCKS (RFC 1928) ?
+
+ 3. Usage Problems
+  3.1 curl: (1) SSL is disabled, https: not supported
+  3.2 How do I tell curl to resume a transfer?
+  3.3 Why does my posting using -F not work?
+  3.4 How do I tell curl to run custom FTP commands?
+  3.5 How can I disable the Accept: */* header?
+  3.6 Does curl support ASP, XML, XHTML or HTML version Y?
+  3.7 Can I use curl to delete/rename a file through FTP?
+  3.8 How do I tell curl to follow HTTP redirects?
+  3.9 How do I use curl in my favorite programming language?
+  3.10 What about SOAP, WebDAV, XML-RPC or similar protocols over HTTP?
+  3.11 How do I POST with a different Content-Type?
+  3.12 Why do FTP-specific features over HTTP proxy fail?
+  3.13 Why do my single/double quotes fail?
+  3.14 Does curl support JavaScript or PAC (automated proxy config)?
+  3.15 Can I do recursive fetches with curl?
+  3.16 What certificates do I need when I use SSL?
+  3.17 How do I list the root directory of an FTP server?
+  3.18 Can I use curl to send a POST/PUT and not wait for a response?
+  3.19 How do I get HTTP from a host using a specific IP address?
+  3.20 How to SFTP from my user's home directory?
+  3.21 Protocol xxx not supported or disabled in libcurl
+  3.22 curl -X gives me HTTP problems
+
+ 4. Running Problems
+  4.2 Why do I get problems when I use & or % in the URL?
+  4.3 How can I use {, }, [ or ] to specify multiple URLs?
+  4.4 Why do I get downloaded data even though the web page does not exist?
+  4.5 Why do I get return code XXX from an HTTP server?
+   4.5.1 "400 Bad Request"
+   4.5.2 "401 Unauthorized"
+   4.5.3 "403 Forbidden"
+   4.5.4 "404 Not Found"
+   4.5.5 "405 Method Not Allowed"
+   4.5.6 "301 Moved Permanently"
+  4.6 Can you tell me what error code 142 means?
+  4.7 How do I keep user names and passwords secret in curl command lines?
+  4.8 I found a bug
+  4.9 curl cannot authenticate to the server that requires NTLM?
+  4.10 My HTTP request using HEAD, PUT or DELETE does not work
+  4.11 Why do my HTTP range requests return the full document?
+  4.12 Why do I get "certificate verify failed" ?
+  4.13 Why is curl -R on Windows one hour off?
+  4.14 Redirects work in browser but not with curl
+  4.15 FTPS does not work
+  4.16 My HTTP POST or PUT requests are slow
+  4.17 Non-functional connect timeouts on Windows
+  4.18 file:// URLs containing drive letters (Windows, NetWare)
+  4.19 Why does not curl return an error when the network cable is unplugged?
+  4.20 curl does not return error for HTTP non-200 responses
+
+ 5. libcurl Issues
+  5.1 Is libcurl thread-safe?
+  5.2 How can I receive all data into a large memory chunk?
+  5.3 How do I fetch multiple files with libcurl?
+  5.4 Does libcurl do Winsock initialization on win32 systems?
+  5.5 Does CURLOPT_WRITEDATA and CURLOPT_READDATA work on win32 ?
+  5.6 What about Keep-Alive or persistent connections?
+  5.7 Link errors when building libcurl on Windows
+  5.8 libcurl.so.X: open failed: No such file or directory
+  5.9 How does libcurl resolve host names?
+  5.10 How do I prevent libcurl from writing the response to stdout?
+  5.11 How do I make libcurl not receive the whole HTTP response?
+  5.12 Can I make libcurl fake or hide my real IP address?
+  5.13 How do I stop an ongoing transfer?
+  5.14 Using C++ non-static functions for callbacks?
+  5.15 How do I get an FTP directory listing?
+  5.16 I want a different time-out
+  5.17 Can I write a server with libcurl?
+  5.18 Does libcurl use threads?
+
+ 6. License Issues
+  6.1 I have a GPL program, can I use the libcurl library?
+  6.2 I have a closed-source program, can I use the libcurl library?
+  6.3 I have a BSD licensed program, can I use the libcurl library?
+  6.4 I have a program that uses LGPL libraries, can I use libcurl?
+  6.5 Can I modify curl/libcurl for my program and keep the changes secret?
+  6.6 Can you please change the curl/libcurl license to XXXX?
+  6.7 What are my obligations when using libcurl in my commercial apps?
+
+ 7. PHP/CURL Issues
+  7.1 What is PHP/CURL?
+  7.2 Who wrote PHP/CURL?
+  7.3 Can I perform multiple requests using the same handle?
+  7.4 Does PHP/CURL have dependencies?
+
+ 8. Development
+  8.1 Why does curl use C89?
+  8.2 Will curl be rewritten?
+
+==============================================================================
+
+1. Philosophy
+
+  1.1 What is cURL?
+
+  cURL is the name of the project. The name is a play on 'Client for URLs',
+  originally with URL spelled in uppercase to make it obvious it deals with
+  URLs. The fact it can also be read as 'see URL' also helped, it works as
+  an abbreviation for "Client URL Request Library" or why not the recursive
+  version: "curl URL Request Library".
+
+  The cURL project produces two products:
+
+  libcurl
+
+    A client-side URL transfer library, supporting DICT, FILE, FTP, FTPS,
+    GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S,
+    RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP.
+
+    libcurl supports HTTPS certificates, HTTP POST, HTTP PUT, FTP uploading,
+    Kerberos, SPNEGO, HTTP form based upload, proxies, cookies, user+password
+    authentication, file transfer resume, http proxy tunneling and more.
+
+    libcurl is highly portable, it builds and works identically on numerous
+    platforms, including Solaris, NetBSD, FreeBSD, OpenBSD, Darwin, HP-UX,
+    IRIX, AIX, Tru64, Linux, UnixWare, HURD, Windows, Amiga, OS/2, macOS,
+    Ultrix, QNX, OpenVMS, RISC OS, Novell NetWare, DOS, Symbian, OSF, Android,
+    Minix, IBM TPF and more...
+
+    libcurl is free, thread-safe, IPv6 compatible, feature rich, well
+    supported and fast.
+
+  curl
+
+    A command line tool for getting or sending data using URL syntax.
+
+    Since curl uses libcurl, curl supports the same wide range of common
+    Internet protocols that libcurl does.
+
+  We pronounce curl with an initial k sound. It rhymes with words like girl
+  and earl. This is a short WAV file to help you:
+
+     https://media.merriam-webster.com/soundc11/c/curl0001.wav
+
+  There are numerous sub-projects and related projects that also use the word
+  curl in the project names in various combinations, but you should take
+  notice that this FAQ is directed at the command-line tool named curl (and
+  libcurl the library), and may therefore not be valid for other curl-related
+  projects. (There is however a small section for the PHP/CURL in this FAQ.)
+
+  1.2 What is libcurl?
+
+  libcurl is a reliable and portable library for doing Internet data transfers
+  using one or more of its supported Internet protocols.
+
+  You can use libcurl freely in your application, be it open source,
+  commercial or closed-source.
+
+  libcurl is most probably the most portable, most powerful and most often
+  used C-based multi-platform file transfer library on this planet - be it
+  open source or commercial.
+
+  1.3 What is curl not?
+
+  curl is not a wget clone. That is a common misconception. Never, during
+  curl's development, have we intended curl to replace wget or compete on its
+  market. curl is targeted at single-shot file transfers.
+
+  curl is not a website mirroring program. If you want to use curl to mirror
+  something: fine, go ahead and write a script that wraps around curl or use
+  libcurl to make it reality.
+
+  curl is not an FTP site mirroring program. Sure, get and send FTP with curl
+  but if you want systematic and sequential behavior you should write a
+  script (or write a new program that interfaces libcurl) and do it.
+
+  curl is not a PHP tool, even though it works perfectly well when used from
+  or with PHP (when using the PHP/CURL module).
+
+  curl is not a program for a single operating system. curl exists, compiles,
+  builds and runs under a wide range of operating systems, including all
+  modern Unixes (and a bunch of older ones too), Windows, Amiga, OS/2, macOS,
+  QNX etc.
+
+  1.4 When will you make curl do XXXX ?
+
+  We love suggestions of what to change in order to make curl and libcurl
+  better. We do however believe in a few rules when it comes to the future of
+  curl:
+
+  curl -- the command line tool -- is to remain a non-graphical command line
+  tool. If you want GUIs or fancy scripting capabilities, you should look for
+  another tool that uses libcurl.
+
+  We do not add things to curl that other small and available tools already do
+  well at the side. curl's output can be piped into another program or
+  redirected to another file for the next program to interpret.
+
+  We focus on protocol related issues and improvements. If you want to do more
+  magic with the supported protocols than curl currently does, chances are
+  good we will agree. If you want to add more protocols, we may agree.
+
+  If you want someone else to do all the work while you wait for us to
+  implement it for you, that is not a friendly attitude. We spend a
+  considerable time already on maintaining and developing curl. In order to
+  get more out of us, you should consider trading in some of your time and
+  effort in return. Simply go to the GitHub repository which resides at
+  https://github.com/curl/curl, fork the project, and create pull requests
+  with your proposed changes.
+
+  If you write the code, chances are better that it will get into curl faster.
+
+  1.5 Who makes curl?
+
+  curl and libcurl are not made by any single individual. Daniel Stenberg is
+  project leader and main developer, but other persons' submissions are
+  important and crucial. Anyone can contribute and post their changes and
+  improvements and have them inserted in the main sources (of course on the
+  condition that developers agree that the fixes are good).
+
+  The full list of all contributors is found in the docs/THANKS file.
+
+  curl is developed by a community, with Daniel at the wheel.
+
+  1.6 What do you get for making curl?
+
+  Project cURL is entirely free and open. We do this voluntarily, mostly in
+  our spare time. Companies may pay individual developers to work on curl.
+  This is not controlled by nor supervised in any way by the curl project.
+
+  We get help from companies. Haxx provides website, bandwidth, mailing lists
+  etc, GitHub hosts the primary git repository and other services like the bug
+  tracker at https://github.com/curl/curl. Also again, some companies have
+  sponsored certain parts of the development in the past and I hope some will
+  continue to do so in the future.
+
+  If you want to support our project, consider a donation or a banner-program
+  or even better: by helping us with coding, documenting or testing etc.
+
+  See also: https://curl.se/sponsors.html
+
+  1.7 What about CURL from curl.com?
+
+  During the summer of 2001, curl.com was busy advertising their client-side
+  programming language for the web, named CURL.
+
+  We are in no way associated with curl.com or their CURL programming
+  language.
+
+  Our project name curl has been in effective use since 1998. We were not the
+  first computer related project to use the name "curl" and do not claim any
+  rights to the name.
+
+  We recognize that we will be living in parallel with curl.com and wish them
+  every success.
+
+  1.8 I have a problem, who do I mail?
+
+  Please do not mail any single individual unless you really need to. Keep
+  curl-related questions on a suitable mailing list. All available mailing
+  lists are listed in the MANUAL document and online at
+  https://curl.se/mail/
+
+  Keeping curl-related questions and discussions on mailing lists allows
+  others to join in and help, to share their ideas, to contribute their
+  suggestions and to spread their wisdom. Keeping discussions on public mailing
+  lists also allows for others to learn from this (both current and future
+  users thanks to the web based archives of the mailing lists), thus saving us
+  from having to repeat ourselves even more. Thanks for respecting this.
+
+  If you have found or simply suspect a security problem in curl or libcurl,
+  submit all the details at https://hackerone.one/curl. On there we keep the
+  issue private while we investigate, confirm it, work and validate a fix and
+  agree on a time schedule for publication etc. That way we produce a fix in a
+  timely manner before the flaw is announced to the world, reducing the impact
+  the problem risks having on existing users.
+
+  Security issues can also be taking to the curl security team by emailing
+  security at curl.se (closed list of receivers, mails are not disclosed).
+
+  1.9 Where do I buy commercial support for curl?
+
+  curl is fully open source. It means you can hire any skilled engineer to fix
+  your curl-related problems.
+
+  We list available alternatives on the curl website:
+  https://curl.se/support.html
+
+  1.10 How many are using curl?
+
+  It is impossible to tell.
+
+  We do not know how many users that knowingly have installed and use curl.
+
+  We do not know how many users that use curl without knowing that they are in
+  fact using it.
+
+  We do not know how many users that downloaded or installed curl and then
+  never use it.
+
+  In 2020, we estimate that curl runs in roughly ten billion installations
+  world wide.
+
+  1.11 Why do you not update ca-bundle.crt
+
+  In the cURL project we have decided not to attempt to keep this file updated
+  (or even present) since deciding what to add to a ca cert bundle is an
+  undertaking we have not been ready to accept, and the one we can get from
+  Mozilla is perfectly fine so there is no need to duplicate that work.
+
+  Today, with many services performed over HTTPS, every operating system
+  should come with a default ca cert bundle that can be deemed somewhat
+  trustworthy and that collection (if reasonably updated) should be deemed to
+  be a lot better than a private curl version.
+
+  If you want the most recent collection of ca certs that Mozilla Firefox
+  uses, we recommend that you extract the collection yourself from Mozilla
+  Firefox (by running 'make ca-bundle), or by using our online service setup
+  for this purpose: https://curl.se/docs/caextract.html
+
+  1.12 I have a problem who, can I chat with?
+
+  There is a bunch of friendly people hanging out in the #curl channel on the
+  IRC network libera.chat. If you are polite and nice, chances are good that
+  you can get -- or provide -- help instantly.
+
+  1.13 curl's ECCN number?
+
+  The US government restricts exports of software that contains or uses
+  cryptography. When doing so, the Export Control Classification Number (ECCN)
+  is used to identify the level of export control etc.
+
+  Apache Software Foundation gives a good explanation of ECCNs at
+  https://www.apache.org/dev/crypto.html
+
+  We believe curl's number might be ECCN 5D002, another possibility is
+  5D992. It seems necessary to write them (the authority that administers ECCN
+  numbers), asking to confirm.
+
+  Comprehensible explanations of the meaning of such numbers and how to obtain
+  them (resp.) are here
+
+  https://www.bis.doc.gov/licensing/exportingbasics.htm
+  https://www.bis.doc.gov/licensing/do_i_needaneccn.html
+
+  An incomprehensible description of the two numbers above is here
+  https://www.bis.doc.gov/index.php/documents/new-encryption/1653-ccl5-pt2-3
+
+  1.14 How do I submit my patch?
+
+  We strongly encourage you to submit changes and improvements directly as
+  "pull requests" on GitHub: https://github.com/curl/curl/pulls
+
+  If you for any reason cannot or will not deal with GitHub, send your patch to
+  the curl-library mailing list. We are many subscribers there and there are
+  lots of people who can review patches, comment on them and "receive" them
+  properly.
+
+  Lots of more details are found in the CONTRIBUTE.md and INTERNALS.md
+  documents.
+
+  1.15 How do I port libcurl to my OS?
+
+  Here's a rough step-by-step:
+
+  1. copy a suitable lib/config-*.h file as a start to lib/config-[youros].h
+
+  2. edit lib/config-[youros].h to match your OS and setup
+
+  3. edit lib/curl_setup.h to include config-[youros].h when your OS is
+     detected by the preprocessor, in the style others already exist
+
+  4. compile lib/*.c and make them into a library
+
+
+2. Install Related Problems
+
+  2.1 configure fails when using static libraries
+
+  You may find that configure fails to properly detect the entire dependency
+  chain of libraries when you provide static versions of the libraries that
+  configure checks for.
+
+  The reason why static libraries is much harder to deal with is that for them
+  we do not get any help but the script itself must know or check what more
+  libraries that are needed (with shared libraries, that dependency "chain" is
+  handled automatically). This is a error-prone process and one that also
+  tends to vary over time depending on the release versions of the involved
+  components and may also differ between operating systems.
+
+  For that reason, configure does few attempts to actually figure this out and
+  you are instead encouraged to set LIBS and LDFLAGS accordingly when you
+  invoke configure, and point out the needed libraries and set the necessary
+  flags yourself.
+
+  2.2 Does curl work with other SSL libraries?
+
+  curl has been written to use a generic SSL function layer internally, and
+  that SSL functionality can then be provided by one out of many different SSL
+  backends.
+
+  curl can be built to use one of the following SSL alternatives: OpenSSL,
+  libressl, BoringSSL, GnuTLS, wolfSSL, NSS, mbedTLS, Secure
+  Transport (native iOS/OS X), Schannel (native Windows), GSKit (native IBM
+  i), BearSSL, or Rustls. They all have their pros and cons, and we try to
+  maintain a comparison of them here: https://curl.se/docs/ssl-compared.html
+
+  2.4 Does curl support SOCKS (RFC 1928) ?
+
+  Yes, SOCKS 4 and 5 are supported.
+
+3. Usage problems
+
+  3.1 curl: (1) SSL is disabled, https: not supported
+
+  If you get this output when trying to get anything from an https:// server,
+  it means that the instance of curl/libcurl that you are using was built
+  without support for this protocol.
+
+  This could have happened if the configure script that was run at build time
+  could not find all libs and include files curl requires for SSL to work. If
+  the configure script fails to find them, curl is simply built without SSL
+  support.
+
+  To get the https:// support into a curl that was previously built but that
+  reports that https:// is not supported, you should dig through the document
+  and logs and check out why the configure script does not find the SSL libs
+  and/or include files.
+
+  Also, check out the other paragraph in this FAQ labeled "configure does not
+  find OpenSSL even when it is installed".
+
+  3.2 How do I tell curl to resume a transfer?
+
+  curl supports resumed transfers both ways on both FTP and HTTP.
+  Try the -C option.
+
+  3.3 Why does my posting using -F not work?
+
+  You cannot arbitrarily use -F or -d, the choice between -F or -d depends on
+  the HTTP operation you need curl to do and what the web server that will
+  receive your post expects.
+
+  If the form you are trying to submit uses the type 'multipart/form-data',
+  then and only then you must use the -F type. In all the most common cases,
+  you should use -d which then causes a posting with the type
+  'application/x-www-form-urlencoded'.
+
+  This is described in some detail in the MANUAL and TheArtOfHttpScripting
+  documents, and if you do not understand it the first time, read it again
+  before you post questions about this to the mailing list. Also, try reading
+  through the mailing list archives for old postings and questions regarding
+  this.
+
+  3.4 How do I tell curl to run custom FTP commands?
+
+  You can tell curl to perform optional commands both before and/or after a
+  file transfer. Study the -Q/--quote option.
+
+  Since curl is used for file transfers, you do not normally use curl to
+  perform FTP commands without transferring anything. Therefore you must
+  always specify a URL to transfer to/from even when doing custom FTP
+  commands, or use -I which implies the "no body" option sent to libcurl.
+
+  3.5 How can I disable the Accept: */* header?
+
+  You can change all internally generated headers by adding a replacement with
+  the -H/--header option. By adding a header with empty contents you safely
+  disable that one. Use -H "Accept:" to disable that specific header.
+
+  3.6 Does curl support ASP, XML, XHTML or HTML version Y?
+
+  To curl, all contents are alike. It does not matter how the page was
+  generated. It may be ASP, PHP, Perl, shell-script, SSI or plain HTML
+  files. There is no difference to curl and it does not even know what kind of
+  language that generated the page.
+
+  See also item 3.14 regarding JavaScript.
+
+  3.7 Can I use curl to delete/rename a file through FTP?
+
+  Yes. You specify custom FTP commands with -Q/--quote.
+
+  One example would be to delete a file after you have downloaded it:
+
+     curl -O ftp://download.com/coolfile -Q '-DELE coolfile'
+
+  or rename a file after upload:
+
+     curl -T infile ftp://upload.com/dir/ -Q "-RNFR infile" -Q "-RNTO newname"
+
+  3.8 How do I tell curl to follow HTTP redirects?
+
+  curl does not follow so-called redirects by default. The Location: header
+  that informs the client about this is only interpreted if you are using the
+  -L/--location option. As in:
+
+     curl -L http://redirector.com
+
+  Not all redirects are HTTP ones, see 4.14
+
+  3.9 How do I use curl in my favorite programming language?
+
+  Many programming languages have interfaces/bindings that allow you to use
+  curl without having to use the command line tool. If you are fluent in such
+  a language, you may prefer to use one of these interfaces instead.
+
+  Find out more about which languages that support curl directly, and how to
+  install and use them, in the libcurl section of the curl website:
+  https://curl.se/libcurl/
+
+  All the various bindings to libcurl are made by other projects and people,
+  outside of the cURL project. The cURL project itself only produces libcurl
+  with its plain C API. If you do not find anywhere else to ask you can ask
+  about bindings on the curl-library list too, but be prepared that people on
+  that list may not know anything about bindings.
+
+  In December 2021, there were interfaces available for the following
+  languages: Ada95, Basic, C, C++, Ch, Cocoa, D, Delphi, Dylan, Eiffel,
+  Euphoria, Falcon, Ferite, Gambas, glib/GTK+, Go, Guile, Harbour, Haskell,
+  Java, Julia, Lisp, Lua, Mono, .NET, node.js, Object-Pascal, OCaml, Pascal,
+  Perl, PHP, PostgreSQL, Python, R, Rexx, Ring, RPG, Ruby, Rust, Scheme,
+  Scilab, S-Lang, Smalltalk, SP-Forth, SPL, Tcl, Visual Basic, Visual FoxPro,
+  Q, wxwidgets, XBLite and Xoho. By the time you read this, additional ones
+  may have appeared.
+
+  3.10 What about SOAP, WebDAV, XML-RPC or similar protocols over HTTP?
+
+  curl adheres to the HTTP spec, which basically means you can play with *any*
+  protocol that is built on top of HTTP. Protocols such as SOAP, WEBDAV and
+  XML-RPC are all such ones. You can use -X to set custom requests and -H to
+  set custom headers (or replace internally generated ones).
+
+  Using libcurl is of course just as good and you would just use the proper
+  library options to do the same.
+
+  3.11 How do I POST with a different Content-Type?
+
+  You can always replace the internally generated headers with -H/--header.
+  To make a simple HTTP POST with text/xml as content-type, do something like:
+
+        curl -d "datatopost" -H "Content-Type: text/xml" [URL]
+
+  3.12 Why do FTP-specific features over HTTP proxy fail?
+
+  Because when you use an HTTP proxy, the protocol spoken on the network will
+  be HTTP, even if you specify an FTP URL. This effectively means that you
+  normally cannot use FTP-specific features such as FTP upload and FTP quote
+  etc.
+
+  There is one exception to this rule, and that is if you can "tunnel through"
+  the given HTTP proxy. Proxy tunneling is enabled with a special option (-p)
+  and is generally not available as proxy admins usually disable tunneling to
+  ports other than 443 (which is used for HTTPS access through proxies).
+
+  3.13 Why do my single/double quotes fail?
+
+  To specify a command line option that includes spaces, you might need to
+  put the entire option within quotes. Like in:
+
+   curl -d " with spaces " url.com
+
+  or perhaps
+
+   curl -d ' with spaces ' url.com
+
+  Exactly what kind of quotes and how to do this is entirely up to the shell
+  or command line interpreter that you are using. For most unix shells, you
+  can more or less pick either single (') or double (") quotes. For
+  Windows/DOS prompts I believe you are forced to use double (") quotes.
+
+  Please study the documentation for your particular environment. Examples in
+  the curl docs will use a mix of both of these as shown above. You must
+  adjust them to work in your environment.
+
+  Remember that curl works and runs on more operating systems than most single
+  individuals have ever tried.
+
+  3.14 Does curl support JavaScript or PAC (automated proxy config)?
+
+  Many web pages do magic stuff using embedded JavaScript. curl and libcurl
+  have no built-in support for that, so it will be treated just like any other
+  contents.
+
+  .pac files are a Netscape invention and are sometimes used by organizations
+  to allow them to differentiate which proxies to use. The .pac contents is
+  just a JavaScript program that gets invoked by the browser and that returns
+  the name of the proxy to connect to. Since curl does not support JavaScript,
+  it cannot support .pac proxy configuration either.
+
+  Some workarounds usually suggested to overcome this JavaScript dependency:
+
+  Depending on the JavaScript complexity, write up a script that translates it
+  to another language and execute that.
+
+  Read the JavaScript code and rewrite the same logic in another language.
+
+  Implement a JavaScript interpreter, people have successfully used the
+  Mozilla JavaScript engine in the past.
+
+  Ask your admins to stop this, for a static proxy setup or similar.
+
+  3.15 Can I do recursive fetches with curl?
+
+  No. curl itself has no code that performs recursive operations, such as
+  those performed by wget and similar tools.
+
+  There exists wrapper scripts with that functionality (for example the
+  curlmirror perl script), and you can write programs based on libcurl to do
+  it, but the command line tool curl itself cannot.
+
+  3.16 What certificates do I need when I use SSL?
+
+  There are three different kinds of "certificates" to keep track of when we
+  talk about using SSL-based protocols (HTTPS or FTPS) using curl or libcurl.
+
+  CLIENT CERTIFICATE
+
+  The server you communicate with may require that you can provide this in
+  order to prove that you actually are who you claim to be. If the server
+  does not require this, you do not need a client certificate.
+
+  A client certificate is always used together with a private key, and the
+  private key has a pass phrase that protects it.
+
+  SERVER CERTIFICATE
+
+  The server you communicate with has a server certificate. You can and should
+  verify this certificate to make sure that you are truly talking to the real
+  server and not a server impersonating it.
+
+  CERTIFICATE AUTHORITY CERTIFICATE ("CA cert")
+
+  You often have several CA certs in a CA cert bundle that can be used to
+  verify a server certificate that was signed by one of the authorities in the
+  bundle. curl does not come with a CA cert bundle but most curl installs
+  provide one. You can also override the default.
+
+  The server certificate verification process is made by using a Certificate
+  Authority certificate ("CA cert") that was used to sign the server
+  certificate. Server certificate verification is enabled by default in curl
+  and libcurl and is often the reason for problems as explained in FAQ entry
+  4.12 and the SSLCERTS document
+  (https://curl.se/docs/sslcerts.html). Server certificates that are
+  "self-signed" or otherwise signed by a CA that you do not have a CA cert
+  for, cannot be verified. If the verification during a connect fails, you are
+  refused access. You then need to explicitly disable the verification to
+  connect to the server.
+
+  3.17 How do I list the root directory of an FTP server?
+
+  There are two ways. The way defined in the RFC is to use an encoded slash
+  in the first path part. List the "/tmp" directory like this:
+
+     curl ftp://ftp.sunet.se/%2ftmp/
+
+  or the not-quite-kosher-but-more-readable way, by simply starting the path
+  section of the URL with a slash:
+
+     curl ftp://ftp.sunet.se//tmp/
+
+  3.18 Can I use curl to send a POST/PUT and not wait for a response?
+
+  No.
+
+  You can easily write your own program using libcurl to do such stunts.
+
+  3.19 How do I get HTTP from a host using a specific IP address?
+
+  For example, you may be trying out a website installation that is not yet in
+  the DNS. Or you have a site using multiple IP addresses for a given host
+  name and you want to address a specific one out of the set.
+
+  Set a custom Host: header that identifies the server name you want to reach
+  but use the target IP address in the URL:
+
+    curl --header "Host: www.example.com" http://127.0.0.1/
+
+  You can also opt to add faked host name entries to curl with the --resolve
+  option. That has the added benefit that things like redirects will also work
+  properly. The above operation would instead be done as:
+
+    curl --resolve www.example.com:80:127.0.0.1 http://www.example.com/
+
+  3.20 How to SFTP from my user's home directory?
+
+  Contrary to how FTP works, SFTP and SCP URLs specify the exact directory to
+  work with. It means that if you do not specify that you want the user's home
+  directory, you get the actual root directory.
+
+  To specify a file in your user's home directory, you need to use the correct
+  URL syntax which for SFTP might look similar to:
+
+    curl -O -u user:password sftp://example.com/~/file.txt
+
+  and for SCP it is just a different protocol prefix:
+
+    curl -O -u user:password scp://example.com/~/file.txt
+
+  3.21 Protocol xxx not supported or disabled in libcurl
+
+  When passing on a URL to curl to use, it may respond that the particular
+  protocol is not supported or disabled. The particular way this error message
+  is phrased is because curl does not make a distinction internally of whether
+  a particular protocol is not supported (i.e. never got any code added that
+  knows how to speak that protocol) or if it was explicitly disabled. curl can
+  be built to only support a given set of protocols, and the rest would then
+  be disabled or not supported.
+
+  Note that this error will also occur if you pass a wrongly spelled protocol
+  part as in "htpt://example.com" or as in the less evident case if you prefix
+  the protocol part with a space as in " http://example.com/".
+
+  3.22 curl -X gives me HTTP problems
+
+  In normal circumstances, -X should hardly ever be used.
+
+  By default you use curl without explicitly saying which request method to
+  use when the URL identifies an HTTP transfer. If you just pass in a URL like
+  "curl http://example.com" it will use GET. If you use -d or -F curl will use
+  POST, -I will cause a HEAD and -T will make it a PUT.
+
+  If for whatever reason you are not happy with these default choices that curl
+  does for you, you can override those request methods by specifying -X
+  [WHATEVER]. This way you can for example send a DELETE by doing "curl -X
+  DELETE [URL]".
+
+  It is thus pointless to do "curl -XGET [URL]" as GET would be used
+  anyway. In the same vein it is pointless to do "curl -X POST -d data
+  [URL]"... But you can make a fun and somewhat rare request that sends a
+  request-body in a GET request with something like "curl -X GET -d data
+  [URL]"
+
+  Note that -X does not actually change curl's behavior as it only modifies the
+  actual string sent in the request, but that may of course trigger a
+  different set of events.
+
+  Accordingly, by using -XPOST on a command line that for example would follow
+  a 303 redirect, you will effectively prevent curl from behaving
+  correctly. Be aware.
+
+
+4. Running Problems
+
+  4.2 Why do I get problems when I use & or % in the URL?
+
+  In general Unix shells, the & symbol is treated specially and when used, it
+  runs the specified command in the background. To safely send the & as a part
+  of a URL, you should quote the entire URL by using single (') or double (")
+  quotes around it. Similar problems can also occur on some shells with other
+  characters, including ?*!$~(){}<>\|;`. When in doubt, quote the URL.
+
+  An example that would invoke a remote CGI that uses &-symbols could be:
+
+     curl 'http://www.altavista.com/cgi-bin/query?text=yes&q=curl'
+
+  In Windows, the standard DOS shell treats the percent sign specially and you
+  need to use TWO percent signs for each single one you want to use in the
+  URL.
+
+  If you want a literal percent sign to be part of the data you pass in a POST
+  using -d/--data you must encode it as '%25' (which then also needs the
+  percent sign doubled on Windows machines).
+
+  4.3 How can I use {, }, [ or ] to specify multiple URLs?
+
+  Because those letters have a special meaning to the shell, to be used in
+  a URL specified to curl you must quote them.
+
+  An example that downloads two URLs (sequentially) would be:
+
+    curl '{curl,www}.haxx.se'
+
+  To be able to use those characters as actual parts of the URL (without using
+  them for the curl URL "globbing" system), use the -g/--globoff option:
+
+    curl -g 'www.site.com/weirdname[].html'
+
+  4.4 Why do I get downloaded data even though the web page does not exist?
+
+  curl asks remote servers for the page you specify. If the page does not exist
+  at the server, the HTTP protocol defines how the server should respond and
+  that means that headers and a "page" will be returned. That is simply how
+  HTTP works.
+
+  By using the --fail option you can tell curl explicitly to not get any data
+  if the HTTP return code does not say success.
+
+  4.5 Why do I get return code XXX from an HTTP server?
+
+  RFC2616 clearly explains the return codes. This is a short transcript. Go
+  read the RFC for exact details:
+
+    4.5.1 "400 Bad Request"
+
+    The request could not be understood by the server due to malformed
+    syntax. The client SHOULD NOT repeat the request without modifications.
+
+    4.5.2 "401 Unauthorized"
+
+    The request requires user authentication.
+
+    4.5.3 "403 Forbidden"
+
+    The server understood the request, but is refusing to fulfill it.
+    Authorization will not help and the request SHOULD NOT be repeated.
+
+    4.5.4 "404 Not Found"
+
+    The server has not found anything matching the Request-URI. No indication
+    is given as to whether the condition is temporary or permanent.
+
+    4.5.5 "405 Method Not Allowed"
+
+    The method specified in the Request-Line is not allowed for the resource
+    identified by the Request-URI. The response MUST include an Allow header
+    containing a list of valid methods for the requested resource.
+
+    4.5.6 "301 Moved Permanently"
+
+    If you get this return code and an HTML output similar to this:
+
+       
Moved Permanently
 The document has moved here.
+
+    it might be because you requested a directory URL but without the trailing
+    slash. Try the same operation again _with_ the trailing URL, or use the
+    -L/--location option to follow the redirection.
+
+  4.6 Can you tell me what error code 142 means?
+
+  All curl error codes are described at the end of the man page, in the
+  section called "EXIT CODES".
+
+  Error codes that are larger than the highest documented error code means
+  that curl has exited due to a crash. This is a serious error, and we
+  appreciate a detailed bug report from you that describes how we could go
+  ahead and repeat this.
+
+  4.7 How do I keep user names and passwords secret in curl command lines?
+
+  This problem has two sides:
+
+  The first part is to avoid having clear-text passwords in the command line
+  so that they do not appear in 'ps' outputs and similar. That is easily
+  avoided by using the "-K" option to tell curl to read parameters from a file
+  or stdin to which you can pass the secret info. curl itself will also
+  attempt to "hide" the given password by blanking out the option - this
+  does not work on all platforms.
+
+  To keep the passwords in your account secret from the rest of the world is
+  not a task that curl addresses. You could of course encrypt them somehow to
+  at least hide them from being read by human eyes, but that is not what
+  anyone would call security.
+
+  Also note that regular HTTP (using Basic authentication) and FTP passwords
+  are sent as cleartext across the network. All it takes for anyone to fetch
+  them is to listen on the network. Eavesdropping is easy. Use more secure
+  authentication methods (like Digest, Negotiate or even NTLM) or consider the
+  SSL-based alternatives HTTPS and FTPS.
+
+  4.8 I found a bug
+
+  It is not a bug if the behavior is documented. Read the docs first.
+  Especially check out the KNOWN_BUGS file, it may be a documented bug.
+
+  If it is a problem with a binary you have downloaded or a package for your
+  particular platform, try contacting the person who built the package/archive
+  you have.
+
+  If there is a bug, read the BUGS document first. Then report it as described
+  in there.
+
+  4.9 curl cannot authenticate to the server that requires NTLM?
+
+  NTLM support requires OpenSSL, GnuTLS, mbedTLS, NSS, Secure Transport, or
+  Microsoft Windows libraries at build-time to provide this functionality.
+
+  NTLM is a Microsoft proprietary protocol. Proprietary formats are evil. You
+  should not use such ones.
+
+  4.10 My HTTP request using HEAD, PUT or DELETE does not work
+
+  Many web servers allow or demand that the administrator configures the
+  server properly for these requests to work on the web server.
+
+  Some servers seem to support HEAD only on certain kinds of URLs.
+
+  To fully grasp this, try the documentation for the particular server
+  software you are trying to interact with. This is not anything curl can do
+  anything about.
+
+  4.11 Why do my HTTP range requests return the full document?
+
+  Because the range may not be supported by the server, or the server may
+  choose to ignore it and return the full document anyway.
+
+  4.12 Why do I get "certificate verify failed" ?
+
+  When you invoke curl and get an error 60 error back it means that curl
+  could not verify that the server's certificate was good. curl verifies the
+  certificate using the CA cert bundle and verifying for which names the
+  certificate has been granted.
+
+  To completely disable the certificate verification, use -k. This does
+  however enable man-in-the-middle attacks and makes the transfer INSECURE.
+  We strongly advise against doing this for more than experiments.
+
+  If you get this failure with a CA cert bundle installed and used, the
+  server's certificate might not be signed by one of the CA's in your CA
+  store. It might for example be self-signed. You then correct this problem by
+  obtaining a valid CA cert for the server. Or again, decrease the security by
+  disabling this check.
+
+  At times, you find that the verification works in your favorite browser but
+  fails in curl. When this happens, the reason is usually that the server
+  sends an incomplete cert chain. The server is mandated to send all
+  "intermediate certificates" but does not. This typically works with browsers
+  anyway since they A) cache such certs and B) supports AIA which downloads
+  such missing certificates on demand. This is a server misconfiguration. A
+  good way to figure out if this is the case it to use the SSL Labs server
+  test and check the certificate chain: https://www.ssllabs.com/ssltest/
+
+  Details are also in the SSLCERTS.md document, found online here:
+  https://curl.se/docs/sslcerts.html
+
+  4.13 Why is curl -R on Windows one hour off?
+
+  Since curl 7.53.0 this issue should be fixed as long as curl was built with
+  any modern compiler that allows for a 64-bit curl_off_t type. For older
+  compilers or prior curl versions it may set a time that appears one hour off.
+  This happens due to a flaw in how Windows stores and uses file modification
+  times and it is not easily worked around. For more details read this:
+  https://www.codeproject.com/Articles/1144/Beating-the-Daylight-Savings-Time-bug-and-getting
+
+  4.14 Redirects work in browser but not with curl
+
+  curl supports HTTP redirects well (see item 3.8). Browsers generally support
+  at least two other ways to perform redirects that curl does not:
+
+  Meta tags. You can write an HTML tag that will cause the browser to redirect
+  to another given URL after a certain time.
+
+  JavaScript. You can write a JavaScript program embedded in an HTML page that
+  redirects the browser to another given URL.
+
+  There is no way to make curl follow these redirects. You must either
+  manually figure out what the page is set to do, or write a script that parses
+  the results and fetches the new URL.
+
+  4.15 FTPS does not work
+
+  curl supports FTPS (sometimes known as FTP-SSL) both implicit and explicit
+  mode.
+
+  When a URL is used that starts with FTPS://, curl assumes implicit SSL on
+  the control connection and will therefore immediately connect and try to
+  speak SSL. FTPS:// connections default to port 990.
+
+  To use explicit FTPS, you use an FTP:// URL and the --ftp-ssl option (or one
+  of its related flavors). This is the most common method, and the one
+  mandated by RFC4217. This kind of connection will then of course use the
+  standard FTP port 21 by default.
+
+  4.16 My HTTP POST or PUT requests are slow
+
+  libcurl makes all POST and PUT requests (except for POST requests with a
+  tiny request body) use the "Expect: 100-continue" header. This header
+  allows the server to deny the operation early so that libcurl can bail out
+  before having to send any data. This is useful in authentication
+  cases and others.
+
+  However, many servers do not implement the Expect: stuff properly and if the
+  server does not respond (positively) within 1 second libcurl will continue
+  and send off the data anyway.
+
+  You can disable libcurl's use of the Expect: header the same way you disable
+  any header, using -H / CURLOPT_HTTPHEADER, or by forcing it to use HTTP 1.0.
+
+  4.17 Non-functional connect timeouts
+
+  In most Windows setups having a timeout longer than 21 seconds make no
+  difference, as it will only send 3 TCP SYN packets and no more. The second
+  packet sent three seconds after the first and the third six seconds after
+  the second. No more than three packets are sent, no matter how long the
+  timeout is set.
+
+  See option TcpMaxConnectRetransmissions on this page:
+  https://support.microsoft.com/en-us/kb/175523/en-us
+
+  Also, even on non-Windows systems there may run a firewall or anti-virus
+  software or similar that accepts the connection but does not actually do
+  anything else. This will make (lib)curl to consider the connection connected
+  and thus the connect timeout will not trigger.
+
+  4.18 file:// URLs containing drive letters (Windows, NetWare)
+
+  When using curl to try to download a local file, one might use a URL
+  in this format:
+
+  file://D:/blah.txt
+
+  you will find that even if D:\blah.txt does exist, curl returns a 'file
+  not found' error.
+
+  According to RFC 1738 (https://www.ietf.org/rfc/rfc1738.txt),
+  file:// URLs must contain a host component, but it is ignored by
+  most implementations. In the above example, 'D:' is treated as the
+  host component, and is taken away. Thus, curl tries to open '/blah.txt'.
+  If your system is installed to drive C:, that will resolve to 'C:\blah.txt',
+  and if that does not exist you will get the not found error.
+
+  To fix this problem, use file:// URLs with *three* leading slashes:
+
+  file:///D:/blah.txt
+
+  Alternatively, if it makes more sense, specify 'localhost' as the host
+  component:
+
+  file://localhost/D:/blah.txt
+
+  In either case, curl should now be looking for the correct file.
+
+  4.19 Why does not curl return an error when the network cable is unplugged?
+
+  Unplugging a cable is not an error situation. The TCP/IP protocol stack
+  was designed to be fault tolerant, so even though there may be a physical
+  break somewhere the connection should not be affected, just possibly
+  delayed. Eventually, the physical break will be fixed or the data will be
+  re-routed around the physical problem through another path.
+
+  In such cases, the TCP/IP stack is responsible for detecting when the
+  network connection is irrevocably lost. Since with some protocols it is
+  perfectly legal for the client to wait indefinitely for data, the stack may
+  never report a problem, and even when it does, it can take up to 20 minutes
+  for it to detect an issue. The curl option --keepalive-time enables
+  keep-alive support in the TCP/IP stack which makes it periodically probe the
+  connection to make sure it is still available to send data. That should
+  reliably detect any TCP/IP network failure.
+
+  TCP keep alive will not detect the network going down before the TCP/IP
+  connection is established (e.g. during a DNS lookup) or using protocols that
+  do not use TCP. To handle those situations, curl offers a number of timeouts
+  on its own. --speed-limit/--speed-time will abort if the data transfer rate
+  falls too low, and --connect-timeout and --max-time can be used to put an
+  overall timeout on the connection phase or the entire transfer.
+
+  A libcurl-using application running in a known physical environment (e.g.
+  an embedded device with only a single network connection) may want to act
+  immediately if its lone network connection goes down. That can be achieved
+  by having the application monitor the network connection on its own using an
+  OS-specific mechanism, then signaling libcurl to abort (see also item 5.13).
+
+  4.20 curl does not return error for HTTP non-200 responses
+
+  Correct. Unless you use -f (--fail).
+
+  When doing HTTP transfers, curl will perform exactly what you are asking it
+  to do and if successful it will not return an error. You can use curl to
+  test your web server's "file not found" page (that gets 404 back), you can
+  use it to check your authentication protected web pages (that gets a 401
+  back) and so on.
+
+  The specific HTTP response code does not constitute a problem or error for
+  curl. It simply sends and delivers HTTP as you asked and if that worked,
+  everything is fine and dandy. The response code is generally providing more
+  higher level error information that curl does not care about. The error was
+  not in the HTTP transfer.
+
+  If you want your command line to treat error codes in the 400 and up range
+  as errors and thus return a non-zero value and possibly show an error
+  message, curl has a dedicated option for that: -f (CURLOPT_FAILONERROR in
+  libcurl speak).
+
+  You can also use the -w option and the variable %{response_code} to extract
+  the exact response code that was returned in the response.
+
+5. libcurl Issues
+
+  5.1 Is libcurl thread-safe?
+
+  Yes.
+
+  We have written the libcurl code specifically adjusted for multi-threaded
+  programs. libcurl will use thread-safe functions instead of non-safe ones if
+  your system has such. Note that you must never share the same handle in
+  multiple threads.
+
+  There may be some exceptions to thread safety depending on how libcurl was
+  built. Please review the guidelines for thread safety to learn more:
+  https://curl.se/libcurl/c/threadsafe.html
+
+  5.2 How can I receive all data into a large memory chunk?
+
+  [ See also the examples/getinmemory.c source ]
+
+  You are in full control of the callback function that gets called every time
+  there is data received from the remote server. You can make that callback do
+  whatever you want. You do not have to write the received data to a file.
+
+  One solution to this problem could be to have a pointer to a struct that you
+  pass to the callback function. You set the pointer using the
+  CURLOPT_WRITEDATA option. Then that pointer will be passed to the callback
+  instead of a FILE * to a file:
+
+        /* imaginary struct */
+        struct MemoryStruct {
+          char *memory;
+          size_t size;
+        };
+
+        /* imaginary callback function */
+        size_t
+        WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data)
+        {
+          size_t realsize = size * nmemb;
+          struct MemoryStruct *mem = (struct MemoryStruct *)data;
+
+          mem->memory = (char *)realloc(mem->memory, mem->size + realsize + 1);
+          if (mem->memory) {
+            memcpy(&(mem->memory[mem->size]), ptr, realsize);
+            mem->size += realsize;
+            mem->memory[mem->size] = 0;
+          }
+          return realsize;
+        }
+
+  5.3 How do I fetch multiple files with libcurl?
+
+  libcurl has excellent support for transferring multiple files. You should
+  just repeatedly set new URLs with curl_easy_setopt() and then transfer it
+  with curl_easy_perform(). The handle you get from curl_easy_init() is not
+  only reusable, but you are even encouraged to reuse it if you can, as that
+  will enable libcurl to use persistent connections.
+
+  5.4 Does libcurl do Winsock initialization on win32 systems?
+
+  Yes, if told to in the curl_global_init() call.
+
+  5.5 Does CURLOPT_WRITEDATA and CURLOPT_READDATA work on win32 ?
+
+  Yes, but you cannot open a FILE * and pass the pointer to a DLL and have
+  that DLL use the FILE * (as the DLL and the client application cannot access
+  each others' variable memory areas). If you set CURLOPT_WRITEDATA you must
+  also use CURLOPT_WRITEFUNCTION as well to set a function that writes the
+  file, even if that simply writes the data to the specified FILE *.
+  Similarly, if you use CURLOPT_READDATA you must also specify
+  CURLOPT_READFUNCTION.
+
+  5.6 What about Keep-Alive or persistent connections?
+
+  curl and libcurl have excellent support for persistent connections when
+  transferring several files from the same server.  curl will attempt to reuse
+  connections for all URLs specified on the same command line/config file, and
+  libcurl will reuse connections for all transfers that are made using the
+  same libcurl handle.
+
+  When you use the easy interface the connection cache is kept within the easy
+  handle. If you instead use the multi interface, the connection cache will be
+  kept within the multi handle and will be shared among all the easy handles
+  that are used within the same multi handle.
+
+  5.7 Link errors when building libcurl on Windows
+
+  You need to make sure that your project, and all the libraries (both static
+  and dynamic) that it links against, are compiled/linked against the same run
+  time library.
+
+  This is determined by the /MD, /ML, /MT (and their corresponding /M?d)
+  options to the command line compiler. /MD (linking against MSVCRT dll) seems
+  to be the most commonly used option.
+
+  When building an application that uses the static libcurl library, you must
+  add -DCURL_STATICLIB to your CFLAGS. Otherwise the linker will look for
+  dynamic import symbols. If you are using Visual Studio, you need to instead
+  add CURL_STATICLIB in the "Preprocessor Definitions" section.
+
+  If you get a linker error like "unknown symbol __imp__curl_easy_init ..." you
+  have linked against the wrong (static) library. If you want to use the
+  libcurl.dll and import lib, you do not need any extra CFLAGS, but use one of
+  the import libraries below. These are the libraries produced by the various
+  lib/Makefile.* files:
+
+       Target:          static lib.   import lib for libcurl*.dll.
+       -----------------------------------------------------------
+       MingW:           libcurl.a     libcurldll.a
+       MSVC (release):  libcurl.lib   libcurl_imp.lib
+       MSVC (debug):    libcurld.lib  libcurld_imp.lib
+       Borland:         libcurl.lib   libcurl_imp.lib
+
+  5.8 libcurl.so.X: open failed: No such file or directory
+
+  This is an error message you might get when you try to run a program linked
+  with a shared version of libcurl and your runtime linker (ld.so) could not
+  find the shared library named libcurl.so.X. (Where X is the number of the
+  current libcurl ABI, typically 3 or 4).
+
+  You need to make sure that ld.so finds libcurl.so.X. You can do that
+  multiple ways, and it differs somewhat between different operating systems.
+  They are usually:
+
+  * Add an option to the linker command line that specify the hard-coded path
+    the runtime linker should check for the lib (usually -R)
+
+  * Set an environment variable (LD_LIBRARY_PATH for example) where ld.so
+    should check for libs
+
+  * Adjust the system's config to check for libs in the directory where you have
+    put the library (like Linux's /etc/ld.so.conf)
+
+  'man ld.so' and 'man ld' will tell you more details
+
+  5.9 How does libcurl resolve host names?
+
+  libcurl supports a large number of name resolve functions. One of them is
+  picked at build-time and will be used unconditionally. Thus, if you want to
+  change name resolver function you must rebuild libcurl and tell it to use a
+  different function.
+
+  - The non-IPv6 resolver that can use one of four different host name resolve
+  calls (depending on what your system supports):
+
+      A - gethostbyname()
+      B - gethostbyname_r() with 3 arguments
+      C - gethostbyname_r() with 5 arguments
+      D - gethostbyname_r() with 6 arguments
+
+  - The IPv6-resolver that uses getaddrinfo()
+
+  - The c-ares based name resolver that uses the c-ares library for resolves.
+    Using this offers asynchronous name resolves.
+
+  - The threaded resolver (default option on Windows). It uses:
+
+      A - gethostbyname() on plain IPv4 hosts
+      B - getaddrinfo() on IPv6 enabled hosts
+
+  Also note that libcurl never resolves or reverse-lookups addresses given as
+  pure numbers, such as 127.0.0.1 or ::1.
+
+  5.10 How do I prevent libcurl from writing the response to stdout?
+
+  libcurl provides a default built-in write function that writes received data
+  to stdout. Set the CURLOPT_WRITEFUNCTION to receive the data, or possibly
+  set CURLOPT_WRITEDATA to a different FILE * handle.
+
+  5.11 How do I make libcurl not receive the whole HTTP response?
+
+  You make the write callback (or progress callback) return an error and
+  libcurl will then abort the transfer.
+
+  5.12 Can I make libcurl fake or hide my real IP address?
+
+  No. libcurl operates on a higher level. Besides, faking IP address would
+  imply sending IP packets with a made-up source address, and then you normally
+  get a problem with receiving the packet sent back as they would then not be
+  routed to you.
+
+  If you use a proxy to access remote sites, the sites will not see your local
+  IP address but instead the address of the proxy.
+
+  Also note that on many networks NATs or other IP-munging techniques are used
+  that makes you see and use a different IP address locally than what the
+  remote server will see you coming from. You may also consider using
+  https://www.torproject.org/ .
+
+  5.13 How do I stop an ongoing transfer?
+
+  With the easy interface you make sure to return the correct error code from
+  one of the callbacks, but none of them are instant. There is no function you
+  can call from another thread or similar that will stop it immediately.
+  Instead, you need to make sure that one of the callbacks you use returns an
+  appropriate value that will stop the transfer. Suitable callbacks that you
+  can do this with include the progress callback, the read callback and the
+  write callback.
+
+  If you are using the multi interface, you can also stop a transfer by
+  removing the particular easy handle from the multi stack at any moment you
+  think the transfer is done or when you wish to abort the transfer.
+
+  5.14 Using C++ non-static functions for callbacks?
+
+  libcurl is a C library, it does not know anything about C++ member functions.
+
+  You can overcome this "limitation" with relative ease using a static
+  member function that is passed a pointer to the class:
+
+     // f is the pointer to your object.
+     static size_t YourClass::func(void *buffer, size_t sz, size_t n, void *f)
+     {
+       // Call non-static member function.
+       static_cast(f)->nonStaticFunction();
+     }
+
+     // This is how you pass pointer to the static function:
+     curl_easy_setopt(hcurl, CURLOPT_WRITEFUNCTION, YourClass::func);
+     curl_easy_setopt(hcurl, CURLOPT_WRITEDATA, this);
+
+  5.15 How do I get an FTP directory listing?
+
+  If you end the FTP URL you request with a slash, libcurl will provide you
+  with a directory listing of that given directory. You can also set
+  CURLOPT_CUSTOMREQUEST to alter what exact listing command libcurl would use
+  to list the files.
+
+  The follow-up question tends to be how is a program supposed to parse the
+  directory listing. How does it know what's a file and what's a directory and
+  what's a symlink etc. If the FTP server supports the MLSD command then it
+  will return data in a machine-readable format that can be parsed for type.
+  The types are specified by RFC3659 section 7.5.1. If MLSD is not supported
+  then you have to work with what you are given. The LIST output format is
+  entirely at the server's own liking and the NLST output does not reveal any
+  types and in many cases does not even include all the directory entries.
+  Also, both LIST and NLST tend to hide unix-style hidden files (those that
+  start with a dot) by default so you need to do "LIST -a" or similar to see
+  them.
+
+  Example - List only directories.
+  ftp.funet.fi supports MLSD and ftp.kernel.org does not:
+
+     curl -s ftp.funet.fi/pub/ -X MLSD | \
+       perl -lne 'print if s/(?:^|;)type=dir;[^ ]+ (.+)$/$1/'
+
+     curl -s ftp.kernel.org/pub/linux/kernel/ | \
+       perl -lne 'print if s/^d[-rwx]{9}(?: +[^ ]+){7} (.+)$/$1/'
+
+  If you need to parse LIST output in libcurl one such existing
+  list parser is available at https://cr.yp.to/ftpparse.html  Versions of
+  libcurl since 7.21.0 also provide the ability to specify a wildcard to
+  download multiple files from one FTP directory.
+
+  5.16 I want a different time-out
+
+  Sometimes users realize that CURLOPT_TIMEOUT and CURLOPT_CONNECTIMEOUT are
+  not sufficiently advanced or flexible to cover all the various use cases and
+  scenarios applications end up with.
+
+  libcurl offers many more ways to time-out operations. A common alternative
+  is to use the CURLOPT_LOW_SPEED_LIMIT and CURLOPT_LOW_SPEED_TIME options to
+  specify the lowest possible speed to accept before to consider the transfer
+  timed out.
+
+  The most flexible way is by writing your own time-out logic and using
+  CURLOPT_XFERINFOFUNCTION (perhaps in combination with other callbacks) and
+  use that to figure out exactly when the right condition is met when the
+  transfer should get stopped.
+
+  5.17 Can I write a server with libcurl?
+
+  No. libcurl offers no functions or building blocks to build any kind of
+  Internet protocol server. libcurl is only a client-side library. For server
+  libraries, you need to continue your search elsewhere but there exist many
+  good open source ones out there for most protocols you could want a server
+  for. There are also really good stand-alone servers that have been tested
+  and proven for many years. There is no need for you to reinvent them.
+
+  5.18 Does libcurl use threads?
+
+  Put simply: no, libcurl will execute in the same thread you call it in. All
+  callbacks will be called in the same thread as the one you call libcurl in.
+
+  If you want to avoid your thread to be blocked by the libcurl call, you make
+  sure you use the non-blocking multi API which will do transfers
+  asynchronously - still in the same single thread.
+
+  libcurl will potentially internally use threads for name resolving, if it
+  was built to work like that, but in those cases it will create the child
+  threads by itself and they will only be used and then killed internally by
+  libcurl and never exposed to the outside.
+
+6. License Issues
+
+  curl and libcurl are released under a MIT/X derivative license. The license
+  is liberal and should not impose a problem for your project. This section is
+  just a brief summary for the cases we get the most questions. (Parts of this
+  section was much enhanced by Bjorn Reese.)
+
+  We are not lawyers and this is not legal advice. You should probably consult
+  one if you want true and accurate legal insights without our prejudice. Note
+  especially that this section concerns the libcurl license only; compiling in
+  features of libcurl that depend on other libraries (e.g. OpenSSL) may affect
+  the licensing obligations of your application.
+
+  6.1 I have a GPL program, can I use the libcurl library?
+
+  Yes
+
+  Since libcurl may be distributed under the MIT/X derivative license, it can
+  be used together with GPL in any software.
+
+  6.2 I have a closed-source program, can I use the libcurl library?
+
+  Yes
+
+  libcurl does not put any restrictions on the program that uses the library.
+
+  6.3 I have a BSD licensed program, can I use the libcurl library?
+
+  Yes
+
+  libcurl does not put any restrictions on the program that uses the library.
+
+  6.4 I have a program that uses LGPL libraries, can I use libcurl?
+
+  Yes
+
+  The LGPL license does not clash with other licenses.
+
+  6.5 Can I modify curl/libcurl for my program and keep the changes secret?
+
+  Yes
+
+  The MIT/X derivative license practically allows you to do almost anything
+  with the sources, on the condition that the copyright texts in the sources
+  are left intact.
+
+  6.6 Can you please change the curl/libcurl license to XXXX?
+
+  No.
+
+  We have carefully picked this license after years of development and
+  discussions and a large amount of people have contributed with source code
+  knowing that this is the license we use. This license puts the restrictions
+  we want on curl/libcurl and it does not spread to other programs or
+  libraries that use it. It should be possible for everyone to use libcurl or
+  curl in their projects, no matter what license they already have in use.
+
+  6.7 What are my obligations when using libcurl in my commercial apps?
+
+  Next to none. All you need to adhere to is the MIT-style license (stated in
+  the COPYING file) which basically says you have to include the copyright
+  notice in "all copies" and that you may not use the copyright holder's name
+  when promoting your software.
+
+  You do not have to release any of your source code.
+
+  You do not have to reveal or make public any changes to the libcurl source
+  code.
+
+  You do not have to broadcast to the world that you are using libcurl within
+  your app.
+
+  All we ask is that you disclose "the copyright notice and this permission
+  notice" somewhere. Most probably like in the documentation or in the section
+  where other third party dependencies already are mentioned and acknowledged.
+
+  As can be seen here: https://curl.se/docs/companies.html and elsewhere,
+  more and more companies are discovering the power of libcurl and take
+  advantage of it even in commercial environments.
+
+
+7. PHP/CURL Issues
+
+  7.1 What is PHP/CURL?
+
+  The module for PHP that makes it possible for PHP programs to access curl-
+  functions from within PHP.
+
+  In the cURL project we call this module PHP/CURL to differentiate it from
+  curl the command line tool and libcurl the library. The PHP team however
+  does not refer to it like this (for unknown reasons). They call it plain
+  CURL (often using all caps) or sometimes ext/curl, but both cause much
+  confusion to users which in turn gives us a higher question load.
+
+  7.2 Who wrote PHP/CURL?
+
+  PHP/CURL was initially written by Sterling Hughes.
+
+  7.3 Can I perform multiple requests using the same handle?
+
+  Yes - at least in PHP version 4.3.8 and later (this has been known to not
+  work in earlier versions, but the exact version when it started to work is
+  unknown to me).
+
+  After a transfer, you just set new options in the handle and make another
+  transfer. This will make libcurl re-use the same connection if it can.
+
+  7.4 Does PHP/CURL have dependencies?
+
+  PHP/CURL is a module that comes with the regular PHP package. It depends on
+  and uses libcurl, so you need to have libcurl installed properly before
+  PHP/CURL can be used.
+
+8. Development
+
+ 8.1 Why does curl use C89?
+
+ As with everything in curl, there is a history and we keep using what we have
+ used before until someone brings up the subject and argues for and works on
+ changing it.
+
+ We started out using C89 in the 1990s because that was the only way to write
+ a truly portable C program and have it run as widely as possible. C89 was for
+ a long time even necessary to make things work on otherwise considered modern
+ platforms such as Windows. Today, we do not really know how many users that
+ still require the use of a C89 compiler.
+
+ We will continue to use C89 for as long as nobody brings up a strong enough
+ reason for us to change our minds. The core developers of the project do not
+ feel restricted by this and we are not convinced that going C99 will offer us
+ enough of a benefit to warrant the risk of cutting off a share of users.
+
+ 8.2 Will curl be rewritten?
+
+ In one go: no. Little by little over time? Maybe.
+
+ Over the years, new languages and clever operating environments come and go.
+ Every now and then the urge apparently arises to request that we rewrite curl
+ in another language.
+
+ Some the most important properties in curl are maintaining the API and ABI
+ for libcurl and keeping the behavior for the command line tool. As long as we
+ can do that, everything else is up for discussion. To maintain the ABI, we
+ probably have to maintain a certain amount of code in C, and to remain rock
+ stable, we will never risk anything by rewriting a lot of things in one go.
+ That said, we can certainly offer more and more optional backends written in
+ other languages, as long as those backends can be plugged in at build-time.
+ Backends can be written in any language, but should probably provide APIs
+ usable from C to ease integration and transition.
diff --git a/curl/docs/FEATURES.md b/curl/docs/FEATURES.md
new file mode 100644
index 0000000..1a03489
--- /dev/null
+++ b/curl/docs/FEATURES.md
@@ -0,0 +1,220 @@
+# Features -- what curl can do
+
+## curl tool
+
+ - config file support
+ - multiple URLs in a single command line
+ - range "globbing" support: [0-13], {one,two,three}
+ - multiple file upload on a single command line
+ - custom maximum transfer rate
+ - redirectable stderr
+ - parallel transfers
+
+## libcurl
+
+ - full URL syntax with no length limit
+ - custom maximum download time
+ - custom least download speed acceptable
+ - custom output result after completion
+ - guesses protocol from host name unless specified
+ - uses .netrc
+ - progress bar with time statistics while downloading
+ - "standard" proxy environment variables support
+ - compiles on win32 (reported builds on 70+ operating systems)
+ - selectable network interface for outgoing traffic
+ - IPv6 support on Unix and Windows
+ - happy eyeballs dual-stack connects
+ - persistent connections
+ - SOCKS 4 + 5 support, with or without local name resolving
+ - supports user name and password in proxy environment variables
+ - operations through HTTP proxy "tunnel" (using CONNECT)
+ - replaceable memory functions (malloc, free, realloc, etc)
+ - asynchronous name resolving (6)
+ - both a push and a pull style interface
+ - international domain names (11)
+
+## HTTP
+
+ - HTTP/0.9 responses are optionally accepted
+ - HTTP/1.0
+ - HTTP/1.1
+ - HTTP/2, including multiplexing and server push (5)
+ - GET
+ - PUT
+ - HEAD
+ - POST
+ - multipart formpost (RFC1867-style)
+ - authentication: Basic, Digest, NTLM (9) and Negotiate (SPNEGO) (3)
+   to server and proxy
+ - resume (both GET and PUT)
+ - follow redirects
+ - maximum amount of redirects to follow
+ - custom HTTP request
+ - cookie get/send fully parsed
+ - reads/writes the Netscape cookie file format
+ - custom headers (replace/remove internally generated headers)
+ - custom user-agent string
+ - custom referrer string
+ - range
+ - proxy authentication
+ - time conditions
+ - via HTTP proxy, HTTPS proxy or SOCKS proxy
+ - retrieve file modification date
+ - Content-Encoding support for deflate and gzip
+ - "Transfer-Encoding: chunked" support in uploads
+ - automatic data compression (12)
+
+## HTTPS (1)
+
+ - (all the HTTP features)
+ - HTTP/3 experimental support
+ - using client certificates
+ - verify server certificate
+ - via HTTP proxy, HTTPS proxy or SOCKS proxy
+ - select desired encryption
+ - select usage of a specific SSL version
+
+## FTP
+
+ - download
+ - authentication
+ - Kerberos 5 (13)
+ - active/passive using PORT, EPRT, PASV or EPSV
+ - single file size information (compare to HTTP HEAD)
+ - 'type=' URL support
+ - dir listing
+ - dir listing names-only
+ - upload
+ - upload append
+ - upload via http-proxy as HTTP PUT
+ - download resume
+ - upload resume
+ - custom ftp commands (before and/or after the transfer)
+ - simple "range" support
+ - via HTTP proxy, HTTPS proxy or SOCKS proxy
+ - all operations can be tunneled through proxy
+ - customizable to retrieve file modification date
+ - no dir depth limit
+
+## FTPS (1)
+
+ - implicit `ftps://` support that use SSL on both connections
+ - explicit "AUTH TLS" and "AUTH SSL" usage to "upgrade" plain `ftp://`
+   connection to use SSL for both or one of the connections
+
+## SCP (8)
+
+ - both password and public key auth
+
+## SFTP (7)
+
+ - both password and public key auth
+ - with custom commands sent before/after the transfer
+
+## TFTP
+
+ - download
+ - upload
+
+## TELNET
+
+ - connection negotiation
+ - custom telnet options
+ - stdin/stdout I/O
+
+## LDAP (2)
+
+ - full LDAP URL support
+
+## DICT
+
+ - extended DICT URL support
+
+## FILE
+
+ - URL support
+ - upload
+ - resume
+
+## SMB
+
+ - SMBv1 over TCP and SSL
+ - download
+ - upload
+ - authentication with NTLMv1
+
+## SMTP
+
+ - authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (9), Kerberos 5
+   (4) and External.
+ - send emails
+ - mail from support
+ - mail size support
+ - mail auth support for trusted server-to-server relaying
+ - multiple recipients
+ - via http-proxy
+
+## SMTPS (1)
+
+ - implicit `smtps://` support
+ - explicit "STARTTLS" usage to "upgrade" plain `smtp://` connections to use SSL
+ - via http-proxy
+
+## POP3
+
+ - authentication: Clear Text, APOP and SASL
+ - SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (9),
+   Kerberos 5 (4) and External.
+ - list emails
+ - retrieve emails
+ - enhanced command support for: CAPA, DELE, TOP, STAT, UIDL and NOOP via
+   custom requests
+ - via http-proxy
+
+## POP3S (1)
+
+ - implicit `pop3s://` support
+ - explicit "STLS" usage to "upgrade" plain `pop3://` connections to use SSL
+ - via http-proxy
+
+## IMAP
+
+ - authentication: Clear Text and SASL
+ - SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (9),
+   Kerberos 5 (4) and External.
+ - list the folders of a mailbox
+ - select a mailbox with support for verifying the UIDVALIDITY
+ - fetch emails with support for specifying the UID and SECTION
+ - upload emails via the append command
+ - enhanced command support for: EXAMINE, CREATE, DELETE, RENAME, STATUS,
+   STORE, COPY and UID via custom requests
+ - via http-proxy
+
+## IMAPS (1)
+
+ - implicit `imaps://` support
+ - explicit "STARTTLS" usage to "upgrade" plain `imap://` connections to use SSL
+ - via http-proxy
+
+## MQTT
+
+ - Subscribe to and publish topics using URL scheme `mqtt://broker/topic`
+
+## Footnotes
+
+  1. requires a TLS library
+  2. requires OpenLDAP or WinLDAP
+  3. requires a GSS-API implementation (such as Heimdal or MIT Kerberos) or
+     SSPI (native Windows)
+  4. requires a GSS-API implementation, however, only Windows SSPI is
+     currently supported
+  5. requires nghttp2
+  6. requires c-ares
+  7. requires libssh2, libssh or wolfSSH
+  8. requires libssh2 or libssh
+  9. requires OpenSSL, GnuTLS, mbedTLS, NSS, yassl, Secure Transport or SSPI
+     (native Windows)
+  10. -
+  11. requires libidn2 or Windows
+  12. requires libz, brotli and/or zstd
+  13. requires a GSS-API implementation (such as Heimdal or MIT Kerberos)
diff --git a/curl/docs/GOVERNANCE.md b/curl/docs/GOVERNANCE.md
new file mode 100644
index 0000000..0d6c5b2
--- /dev/null
+++ b/curl/docs/GOVERNANCE.md
@@ -0,0 +1,182 @@
+# Decision making in the curl project
+
+A rough guide to how we make decisions and who does what.
+
+## BDFL
+
+This project was started by and has to some extent been pushed forward over
+the years with Daniel Stenberg as the driving force. It matches a standard
+BDFL (Benevolent Dictator For Life) style project.
+
+This setup has been used due to convenience and the fact that it has worked
+fine this far. It is not because someone thinks of it as a superior project
+leadership model. It will also only continue working as long as Daniel manages
+to listen in to what the project and the general user population wants and
+expects from us.
+
+## Legal entity
+
+There is no legal entity. The curl project is just a bunch of people scattered
+around the globe with the common goal to produce source code that creates
+great products. We are not part of any umbrella organization and we are not
+located in any specific country. We are totally independent.
+
+The copyrights in the project are owned by the individuals and organizations
+that wrote those parts of the code.
+
+## Decisions
+
+The curl project is not a democracy, but everyone is entitled to state their
+opinion and may argue for their sake within the community.
+
+All and any changes that have been done or will be done are eligible to bring
+up for discussion, to object to or to praise. Ideally, we find consensus for
+the appropriate way forward in any given situation or challenge.
+
+If there is no obvious consensus, a maintainer who's knowledgeable in the
+specific area will take an "executive" decision that they think is the right
+for the project.
+
+## Donations
+
+Donating plain money to curl is best done to curl's [Open Collective
+fund](https://opencollective.com/curl). Open Collective is a US based
+non-profit organization that holds on to funds for us. This fund is then used
+for paying the curl security bug bounties, to reimburse project related
+expenses etc.
+
+Donations to the project can also come in the form of server hosting, providing
+services and paying for people to work on curl related code etc. Usually, such
+donations are services paid for directly by the sponsors.
+
+We grade sponsors in a few different levels and if they meet the criteria,
+they can be mentioned on the Sponsors page on the curl website.
+
+## Commercial Support
+
+The curl project does not do or offer commercial support. It only hosts
+mailing lists, runs bug trackers etc to facilitate communication and work.
+
+However, Daniel works for wolfSSL and we offer commercial curl support there.
+
+# Key roles
+
+## User
+
+Someone who uses or has used curl or libcurl.
+
+## Contributor
+
+Someone who has helped the curl project, who has contributed to bring it
+forward. Contributing could be to provide advice, debug a problem, file a bug
+report, run test infrastructure or writing code etc.
+
+## Commit author
+
+Sometimes also called 'committer'. Someone who has authored a commit in the
+curl source code repository. Committers are recorded as `Author` in git.
+
+## Maintainers
+
+A maintainer in the curl project is an individual who has been given
+permissions to push commits to one of the git repositories.
+
+Maintainers are free to push commits to the repositories at their own will.
+Maintainers are however expected to listen to feedback from users and any
+change that is non-trivial in size or nature *should* be brought to the
+project as a Pull-Request (PR) to allow others to comment/object before merge.
+
+## Former maintainers
+
+A maintainer who stops being active in the project will at some point get
+their push permissions removed. We do this for security reasons but also to
+make sure that we always have the list of maintainers as "the team that push
+stuff to curl".
+
+Getting push permissions removed is not a punishment. Everyone who ever worked
+on maintaining curl is considered a hero, for all time hereafter.
+
+## Security team members
+
+We have a security team. That is the team of people who are subscribed to the
+curl-security mailing list; the receivers of security reports from users and
+developers. This list of people will vary over time but should be skilled
+developers familiar with the curl project.
+
+The security team works best when it consists of a small set of active
+persons. We invite new members when the team seems to need it, and we also
+expect to retire security team members as they "drift off" from the project or
+just find themselves unable to perform their duties there.
+
+## Server admins
+
+We run a web server, a mailing list and more on the curl project's primary
+server. That physical machine is owned and run by Haxx. Daniel is the primary
+admin of all things curl related server stuff, but Björn Stenberg and Linus
+Feltzing serve as backup admins for when Daniel is gone or unable.
+
+The primary server is paid for by Haxx. The machine is physically located in a
+server bunker in Stockholm Sweden, operated by the company Portlane.
+
+The website contents are served to the web via Fastly and Daniel is the
+primary curl contact with Fastly.
+
+## BDFL
+
+That is Daniel.
+
+# Maintainers
+
+A curl maintainer is a project volunteer who has the authority and rights to
+merge changes into a git repository in the curl project.
+
+Anyone can aspire to become a curl maintainer.
+
+### Duties
+
+There are no mandatory duties. We hope and wish that maintainers consider
+reviewing patches and help merging them, especially when the changes are
+within the area of personal expertise and experience.
+
+### Requirements
+
+- only merge code that meets our quality and style guide requirements.
+- *never* merge code without doing a PR first, unless the change is "trivial"
+- if in doubt, ask for input/feedback from others
+
+### Recommendations
+
+- we require two-factor authentication enabled on your GitHub account to
+  reduce risk of malicious source code tampering
+- consider enabling signed git commits for additional verification of changes
+
+### Merge advice
+
+When you are merging patches/PRs...
+
+- make sure the commit messages follow our template
+- squash patch sets into a few logical commits even if the PR did not, if
+  necessary
+- avoid the "merge" button on GitHub, do it "manually" instead to get full
+  control and full audit trail (github leaves out you as "Committer:")
+- remember to credit the reporter and the helpers.
+
+## Who are maintainers?
+
+The [list of maintainers](https://github.com/orgs/curl/people). Be aware that
+the level of presence and activity in the project vary greatly between
+different individuals and over time.
+
+### Become a maintainer?
+
+If you think you can help making the project better by shouldering some
+maintaining responsibilities, then please get in touch.
+
+You will be expected to be familiar with the curl project and its ways of
+working. You need to have gotten a few quality patches merged as a proof of
+this.
+
+### Stop being a maintainer
+
+If you (appear to) not be active in the project anymore, you may be removed as
+a maintainer. Thank you for your service!
diff --git a/curl/docs/HELP-US.md b/curl/docs/HELP-US.md
new file mode 100644
index 0000000..eabf808
--- /dev/null
+++ b/curl/docs/HELP-US.md
@@ -0,0 +1,87 @@
+# How to get started helping out in the curl project
+
+We are always in need of more help. If you are new to the project and are
+looking for ways to contribute and help out, this document aims to give a few
+good starting points.
+
+A good idea is to start by subscribing to the [curl-library mailing
+list](https://lists.haxx.se/listinfo/curl-library) to keep track of the
+current discussion topics.
+
+## Scratch your own itch
+
+One of the best ways is to start working on any problems or issues you have
+found yourself or perhaps got annoyed at in the past. It can be a spelling
+error in an error text or a weirdly phrased section in a man page. Hunt it
+down and report the bug. Or make your first pull request with a fix for that.
+
+## Smaller tasks
+
+Some projects mark small issues as "beginner friendly", "bite-sized" or
+similar. We do not do that in curl since such issues never linger around long
+enough. Simple issues get handled fast.
+
+If you are looking for a smaller or simpler task in the project to help out
+with as an entry-point into the project, perhaps because you are a newcomer or
+even maybe not a terribly experienced developer, here's our advice:
+
+ - Read through this document to get a grasp on a general approach to use
+ - Consider adding a test case for something not currently tested (correctly)
+ - Consider updating or adding documentation
+ - One way to get started gently in the project, is to participate in an
+   existing issue/PR and help out by reproducing the issue, review the code in
+   the PR etc.
+
+## Help wanted
+
+In the issue tracker we occasionally mark bugs with [help
+wanted](https://github.com/curl/curl/labels/help%20wanted), as a sign that the
+bug is acknowledged to exist and that there's nobody known to work on this
+issue for the moment. Those are bugs that are fine to "grab" and provide a
+pull request for. The complexity level of these will of course vary, so pick
+one that piques your interest.
+
+## Work on known bugs
+
+Some bugs are known and have not yet received attention and work enough to get
+fixed. We collect such known existing flaws in the
+[KNOWN_BUGS](https://curl.se/docs/knownbugs.html) page. Many of them link
+to the original bug report with some additional details, but some may also
+have aged a bit and may require some verification that the bug still exists in
+the same way and that what was said about it in the past is still valid.
+
+## Fix autobuild problems
+
+On the [autobuilds page](https://curl.se/dev/builds.html) we show a
+collection of test results from the automatic curl build and tests that are
+performed by volunteers. Fixing compiler warnings and errors shown there is
+something we value greatly. Also, if you own or run systems or architectures
+that are not already tested in the autobuilds, we also appreciate more
+volunteers running builds automatically to help us keep curl portable.
+
+## TODO items
+
+Ideas for features and functions that we have considered worthwhile to
+implement and provide are kept in the
+[TODO](https://curl.se/docs/todo.html) file. Some of the ideas are
+rough. Some are well thought out. Some probably are not really suitable
+anymore.
+
+Before you invest a lot of time on a TODO item, do bring it up for discussion
+on the mailing list. For discussion on applicability but also for ideas and
+brainstorming on specific ways to do the implementation etc.
+
+## You decide
+
+You can also come up with a completely new thing you think we should do. Or
+not do. Or fix. Or add to the project. You then either bring it to the mailing
+list first to see if people will shoot down the idea at once, or you bring a
+first draft of the idea as a pull request and take the discussion there around
+the specific implementation. Either way is fine.
+
+## CONTRIBUTE
+
+We offer [guidelines](https://curl.se/dev/contribute.html) that are
+suitable to be familiar with before you decide to contribute to curl. If
+you are used to open source development, you will probably not find many
+surprises there.
diff --git a/curl/docs/HISTORY.md b/curl/docs/HISTORY.md
new file mode 100644
index 0000000..6268b87
--- /dev/null
+++ b/curl/docs/HISTORY.md
@@ -0,0 +1,432 @@
+How curl Became Like This
+=========================
+
+Towards the end of 1996, Daniel Stenberg was spending time writing an IRC bot
+for an Amiga related channel on EFnet. He then came up with the idea to make
+currency-exchange calculations available to Internet Relay Chat (IRC)
+users. All the necessary data were published on the Web; he just needed to
+automate their retrieval.
+
+1996
+----
+
+On November 11, 1996 the Brazilian developer Rafael Sagula wrote and released
+HttpGet version 0.1.
+
+Daniel extended this existing command-line open-source tool. After a few minor
+adjustments, it did just what he needed. The first release with Daniel's
+additions was 0.2, released on December 17, 1996. Daniel quickly became the
+new maintainer of the project.
+
+1997
+----
+
+HttpGet 0.3 was released in January 1997 and now it accepted HTTP URLs on the
+command line.
+
+HttpGet 1.0 was released on April 8th 1997 with brand new HTTP proxy support.
+
+We soon found and fixed support for getting currencies over GOPHER. Once FTP
+download support was added, the name of the project was changed and urlget 2.0
+was released in August 1997. The http-only days were already passed.
+
+Version 2.2 was released on August 14 1997 and introduced support to build for
+and run on Windows and Solaris.
+
+November 24 1997: Version 3.1 added FTP upload support.
+
+Version 3.5 added support for HTTP POST.
+
+1998
+----
+
+February 4: urlget 3.10
+
+February 9: urlget 3.11
+
+March 14: urlget 3.12 added proxy authentication.
+
+The project slowly grew bigger. With upload capabilities, the name was once
+again misleading and a second name change was made. On March 20, 1998 curl 4
+was released. (The version numbering from the previous names was kept.)
+
+(Unrelated to this project a company called Curl Corporation registered a US
+trademark on the name "CURL" on May 18 1998. That company had then already
+registered the curl.com domain back in November of the previous year. All this
+was revealed to us much later.)
+
+SSL support was added, powered by the SSLeay library.
+
+August: first announcement of curl on freshmeat.net.
+
+October: with the curl 4.9 release and the introduction of cookie support,
+curl was no longer released under the GPL license. Now we are at 4000 lines of
+code, we switched over to the MPL license to restrict the effects of
+"copyleft".
+
+November: configure script and reported successful compiles on several
+major operating systems. The never-quite-understood -F option was added and
+curl could now simulate quite a lot of a browser. TELNET support was added.
+
+Curl 5 was released in December 1998 and introduced the first ever curl man
+page. People started making Linux RPM packages out of it.
+
+1999
+----
+
+January: DICT support added.
+
+OpenSSL took over and SSLeay was abandoned.
+
+May: first Debian package.
+
+August: LDAP:// and FILE:// support added. The curl website gets 1300 visits
+weekly. Moved site to curl.haxx.nu.
+
+September: Released curl 6.0. 15000 lines of code.
+
+December 28: added the project on Sourceforge and started using its services
+for managing the project.
+
+2000
+----
+
+Spring: major internal overhaul to provide a suitable library interface.
+The first non-beta release was named 7.1 and arrived in August. This offered
+the easy interface and turned out to be the beginning of actually getting
+other software and programs to be based on and powered by libcurl. Almost
+20000 lines of code.
+
+June: the curl site moves to "curl.haxx.se"
+
+August, the curl website gets 4000 visits weekly.
+
+The PHP guys adopted libcurl already the same month, when the first ever third
+party libcurl binding showed up. CURL has been a supported module in PHP since
+the release of PHP 4.0.2. This would soon get followers. More than 16
+different bindings exist at the time of this writing.
+
+September: kerberos4 support was added.
+
+November: started the work on a test suite for curl. It was later re-written
+from scratch again. The libcurl major SONAME number was set to 1.
+
+2001
+----
+
+January: Daniel released curl 7.5.2 under a new license again: MIT (or
+MPL). The MIT license is extremely liberal and can be combined with GPL
+in other projects. This would finally put an end to the "complaints" from
+people involved in GPLed projects that previously were prohibited from using
+libcurl while it was released under MPL only. (Due to the fact that MPL is
+deemed "GPL incompatible".)
+
+March 22: curl supports HTTP 1.1 starting with the release of 7.7. This
+also introduced libcurl's ability to do persistent connections. 24000 lines of
+code. The libcurl major SONAME number was bumped to 2 due to this overhaul.
+The first experimental ftps:// support was added.
+
+August: The curl website gets 8000 visits weekly. Curl Corporation contacted
+Daniel to discuss "the name issue". After Daniel's reply, they have never
+since got back in touch again.
+
+September: libcurl 7.9 introduces cookie jar and curl_formadd(). During the
+forthcoming 7.9.x releases, we introduced the multi interface slowly and
+without many whistles.
+
+September 25: curl (7.7.2) is bundled in Mac OS X (10.1) for the first time. It was
+already becoming more and more of a standard utility of Linux distributions
+and a regular in the BSD ports collections.
+
+2002
+----
+
+June: the curl website gets 13000 visits weekly. curl and libcurl is
+35000 lines of code. Reported successful compiles on more than 40 combinations
+of CPUs and operating systems.
+
+To estimate the number of users of the curl tool or libcurl library is next to
+impossible. Around 5000 downloaded packages each week from the main site gives
+a hint, but the packages are mirrored extensively, bundled with numerous OS
+distributions and otherwise retrieved as part of other software.
+
+October 1: with the release of curl 7.10 it is released under the MIT license
+only.
+
+Starting with 7.10, curl verifies SSL server certificates by default.
+
+2003
+----
+
+January: Started working on the distributed curl tests. The autobuilds.
+
+February: the curl site averages at 20000 visits weekly. At any given moment,
+there's an average of 3 people browsing the website.
+
+Multiple new authentication schemes are supported: Digest (May), NTLM (June)
+and Negotiate (June).
+
+November: curl 7.10.8 is released. 45000 lines of code. ~55000 unique visitors
+to the website. Five official web mirrors.
+
+December: full-fledged SSL for FTP is supported.
+
+2004
+----
+
+January: curl 7.11.0 introduced large file support.
+
+June: curl 7.12.0 introduced IDN support. 10 official web mirrors.
+
+This release bumped the major SONAME to 3 due to the removal of the
+curl_formparse() function
+
+August: Curl and libcurl 7.12.1
+
+    Public curl release number:                82
+    Releases counted from the very beginning: 109
+    Available command line options:            96
+    Available curl_easy_setopt() options:     120
+    Number of public functions in libcurl:     36
+    Amount of public website mirrors:         12
+    Number of known libcurl bindings:          26
+
+2005
+----
+
+April: GnuTLS can now optionally be used for the secure layer when curl is
+built.
+
+April: Added the multi_socket() API
+
+September: TFTP support was added.
+
+More than 100,000 unique visitors of the curl website. 25 mirrors.
+
+December: security vulnerability: libcurl URL Buffer Overflow
+
+2006
+----
+
+January: We dropped support for Gopher. We found bugs in the implementation
+that turned out to have been introduced years ago, so with the conclusion that
+nobody had found out in all this time we removed it instead of fixing it.
+
+March: security vulnerability: libcurl TFTP Packet Buffer Overflow
+
+September: The major SONAME number for libcurl was bumped to 4 due to the
+removal of ftp third party transfer support.
+
+November: Added SCP and SFTP support
+
+2007
+----
+
+February: Added support for the Mozilla NSS library to do the SSL/TLS stuff
+
+July: security vulnerability: libcurl GnuTLS insufficient cert verification
+
+2008
+----
+
+November:
+
+    Command line options:         128
+    curl_easy_setopt() options:   158
+    Public functions in libcurl:   58
+    Known libcurl bindings:        37
+    Contributors:                 683
+
+ 145,000 unique visitors. >100 GB downloaded.
+
+2009
+----
+
+March: security vulnerability: libcurl Arbitrary File Access
+
+April: added CMake support
+
+August: security vulnerability: libcurl embedded zero in cert name
+
+December: Added support for IMAP, POP3 and SMTP
+
+2010
+----
+
+January: Added support for RTSP
+
+February: security vulnerability: libcurl data callback excessive length
+
+March: The project switched over to use git (hosted by GitHub) instead of CVS
+for source code control
+
+May: Added support for RTMP
+
+Added support for PolarSSL to do the SSL/TLS stuff
+
+August:
+
+    Public curl releases:         117
+    Command line options:         138
+    curl_easy_setopt() options:   180
+    Public functions in libcurl:   58
+    Known libcurl bindings:        39
+    Contributors:                 808
+
+ Gopher support added (re-added actually, see January 2006)
+
+2011
+----
+
+February: added support for the axTLS backend
+
+April: added the cyassl backend (later renamed to WolfSSL)
+
+2012
+----
+
+ July: Added support for Schannel (native Windows TLS backend) and Darwin SSL
+ (Native Mac OS X and iOS TLS backend).
+
+ Supports metalink
+
+ October: SSH-agent support.
+
+2013
+----
+
+ February: Cleaned up internals to always uses the "multi" non-blocking
+ approach internally and only expose the blocking API with a wrapper.
+
+ September: First small steps on supporting HTTP/2 with nghttp2.
+
+ October: Removed krb4 support.
+
+ December: Happy eyeballs.
+
+2014
+----
+
+ March: first real release supporting HTTP/2
+
+ September: Website had 245,000 unique visitors and served 236GB data
+
+ SMB and SMBS support
+
+2015
+----
+
+ June: support for multiplexing with HTTP/2
+
+ August: support for HTTP/2 server push
+
+ December: Public Suffix List
+
+2016
+----
+
+ January: the curl tool defaults to HTTP/2 for HTTPS URLs
+
+ December: curl 7.52.0 introduced support for HTTPS-proxy!
+
+ First TLS 1.3 support
+
+2017
+----
+
+ July: OSS-Fuzz started fuzzing libcurl
+
+ September: Added Multi-SSL support
+
+ The website serves 3100 GB/month
+
+    Public curl releases:         169
+    Command line options:         211
+    curl_easy_setopt() options:   249
+    Public functions in libcurl:  74
+    Contributors:                 1609
+
+ October: SSLKEYLOGFILE support, new MIME API
+
+ October: Daniel received the Polhem Prize for his work on curl
+
+ November: brotli
+
+2018
+----
+
+ January: new SSH backend powered by libssh
+
+ March: starting with the 1803 release of Windows 10, curl is shipped bundled
+ with Microsoft's operating system.
+
+ July: curl shows headers using bold type face
+
+ October: added DNS-over-HTTPS (DoH) and the URL API
+
+ MesaLink is a new supported TLS backend
+
+ libcurl now does HTTP/2 (and multiplexing) by default on HTTPS URLs
+
+ curl and libcurl are installed in an estimated 5 *billion* instances
+ world-wide.
+
+ October 31: Curl and libcurl 7.62.0
+
+    Public curl releases:         177
+    Command line options:         219
+    curl_easy_setopt() options:   261
+    Public functions in libcurl:  80
+    Contributors:                 1808
+
+ December: removed axTLS support
+
+2019
+----
+
+ March: added experimental alt-svc support
+
+ August: the first HTTP/3 requests with curl.
+
+ September: 7.66.0 is released and the tool offers parallel downloads
+
+2020
+----
+
+ curl and libcurl are installed in an estimated 10 *billion* instances
+ world-wide.
+
+ January: added BearSSL support
+
+ March: removed support for PolarSSL, added wolfSSH support
+
+ April: experimental MQTT support
+
+ August: zstd support
+
+ November: the website moves to curl.se. The website serves 10TB data monthly.
+
+ December: alt-svc support
+
+2021
+----
+
+ February 3: curl 7.75.0 ships with support for Hyper as an HTTP backend
+
+ March 31: curl 7.76.0 ships with support for rustls
+
+ July: HSTS is supported
+
+2022
+----
+
+ March: added --json, removed mesalink support
+
+    Public curl releases:         206
+    Command line options:         245
+    curl_easy_setopt() options:   295
+    Public functions in libcurl:  86
+    Contributors:                 2601
+
+ The curl.se website serves 16,500 GB/month over 462M requests, the
+ official docker image has been pulled 4,098,015,431 times.
diff --git a/curl/docs/HSTS.md b/curl/docs/HSTS.md
new file mode 100644
index 0000000..cecdc75
--- /dev/null
+++ b/curl/docs/HSTS.md
@@ -0,0 +1,44 @@
+# HSTS support
+
+HTTP Strict-Transport-Security. Added as experimental in curl
+7.74.0. Supported "for real" since 7.77.0.
+
+## Standard
+
+[HTTP Strict Transport Security](https://datatracker.ietf.org/doc/html/rfc6797)
+
+## Behavior
+
+libcurl features an in-memory cache for HSTS hosts, so that subsequent
+HTTP-only requests to a host name present in the cache will get internally
+"redirected" to the HTTPS version.
+
+## `curl_easy_setopt()` options:
+
+ - `CURLOPT_HSTS_CTRL` - enable HSTS for this easy handle
+ - `CURLOPT_HSTS` - specify file name where to store the HSTS cache on close
+  (and possibly read from at startup)
+
+## curl cmdline options
+
+ - `--hsts [filename]` - enable HSTS, use the file as HSTS cache. If filename
+   is `""` (no length) then no file will be used, only in-memory cache.
+
+## HSTS cache file format
+
+Lines starting with `#` are ignored.
+
+For each hsts entry:
+
+    [host name] "YYYYMMDD HH:MM:SS"
+
+The `[host name]` is dot-prefixed if it is a includeSubDomain.
+
+The time stamp is when the entry expires.
+
+I considered using wget's file format for the HSTS cache. However, they store the time stamp as the epoch (number of seconds since 1970) and I strongly disagree with using that format. Instead I opted to use a format similar to the curl alt-svc cache file format.
+
+## Possible future additions
+
+ - `CURLOPT_HSTS_PRELOAD` - provide a set of preloaded HSTS host names
+ - ability to save to something else than a file
diff --git a/curl/docs/HTTP-COOKIES.md b/curl/docs/HTTP-COOKIES.md
new file mode 100644
index 0000000..73fa242
--- /dev/null
+++ b/curl/docs/HTTP-COOKIES.md
@@ -0,0 +1,139 @@
+# HTTP Cookies
+
+## Cookie overview
+
+  Cookies are `name=contents` pairs that an HTTP server tells the client to
+  hold and then the client sends back those to the server on subsequent
+  requests to the same domains and paths for which the cookies were set.
+
+  Cookies are either "session cookies" which typically are forgotten when the
+  session is over which is often translated to equal when browser quits, or
+  the cookies are not session cookies they have expiration dates after which
+  the client will throw them away.
+
+  Cookies are set to the client with the Set-Cookie: header and are sent to
+  servers with the Cookie: header.
+
+  For a long time, the only spec explaining how to use cookies was the
+  original [Netscape spec from 1994](https://curl.se/rfc/cookie_spec.html).
+
+  In 2011, [RFC6265](https://www.ietf.org/rfc/rfc6265.txt) was finally
+  published and details how cookies work within HTTP. In 2016, an update which
+  added support for prefixes was
+  [proposed](https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-prefixes-00),
+  and in 2017, another update was
+  [drafted](https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-alone-01)
+  to deprecate modification of 'secure' cookies from non-secure origins. Both
+  of these drafts have been incorporated into a proposal to
+  [replace](https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis-02)
+  RFC6265. Cookie prefixes and secure cookie modification protection has been
+  implemented by curl.
+
+## Cookies saved to disk
+
+  Netscape once created a file format for storing cookies on disk so that they
+  would survive browser restarts. curl adopted that file format to allow
+  sharing the cookies with browsers, only to see browsers move away from that
+  format. Modern browsers no longer use it, while curl still does.
+
+  The Netscape cookie file format stores one cookie per physical line in the
+  file with a bunch of associated meta data, each field separated with
+  TAB. That file is called the cookiejar in curl terminology.
+
+  When libcurl saves a cookiejar, it creates a file header of its own in which
+  there is a URL mention that will link to the web version of this document.
+
+## Cookie file format
+
+  The cookie file format is text based and stores one cookie per line. Lines
+  that start with `#` are treated as comments.
+
+  Each line that specifies a single cookie consists of seven text fields
+  separated with TAB characters. A valid line must end with a newline
+  character.
+
+### Fields in the file
+
+  Field number, what type and example data and the meaning of it:
+
+  0. string `example.com` - the domain name
+  1. boolean `FALSE` - include subdomains
+  2. string `/foobar/` - path
+  3. boolean `TRUE` - send/receive over HTTPS only
+  4. number `1462299217` - expires at - seconds since Jan 1st 1970, or 0
+  5. string `person` - name of the cookie
+  6. string `daniel` - value of the cookie
+
+## Cookies with curl the command line tool
+
+  curl has a full cookie "engine" built in. If you just activate it, you can
+  have curl receive and send cookies exactly as mandated in the specs.
+
+  Command line options:
+
+  `-b, --cookie`
+
+  tell curl a file to read cookies from and start the cookie engine, or if it
+  is not a file it will pass on the given string. -b name=var works and so does
+  -b cookiefile.
+
+  `-j, --junk-session-cookies`
+
+  when used in combination with -b, it will skip all "session cookies" on load
+  so as to appear to start a new cookie session.
+
+  `-c, --cookie-jar`
+
+  tell curl to start the cookie engine and write cookies to the given file
+  after the request(s)
+
+## Cookies with libcurl
+
+  libcurl offers several ways to enable and interface the cookie engine. These
+  options are the ones provided by the native API. libcurl bindings may offer
+  access to them using other means.
+
+  `CURLOPT_COOKIE`
+
+  Is used when you want to specify the exact contents of a cookie header to
+  send to the server.
+
+  `CURLOPT_COOKIEFILE`
+
+  Tell libcurl to activate the cookie engine, and to read the initial set of
+  cookies from the given file. Read-only.
+
+  `CURLOPT_COOKIEJAR`
+
+  Tell libcurl to activate the cookie engine, and when the easy handle is
+  closed save all known cookies to the given cookiejar file. Write-only.
+
+  `CURLOPT_COOKIELIST`
+
+  Provide detailed information about a single cookie to add to the internal
+  storage of cookies. Pass in the cookie as an HTTP header with all the
+  details set, or pass in a line from a Netscape cookie file. This option can
+  also be used to flush the cookies etc.
+
+  `CURLOPT_COOKIESESSION`
+
+  Tell libcurl to ignore all cookies it is about to load that are session
+  cookies.
+
+  `CURLINFO_COOKIELIST`
+
+  Extract cookie information from the internal cookie storage as a linked
+  list.
+
+## Cookies with JavaScript
+
+  These days a lot of the web is built up by JavaScript. The webbrowser loads
+  complete programs that render the page you see. These JavaScript programs
+  can also set and access cookies.
+
+  Since curl and libcurl are plain HTTP clients without any knowledge of or
+  capability to handle JavaScript, such cookies will not be detected or used.
+
+  Often, if you want to mimic what a browser does on such websites, you can
+  record web browser HTTP traffic when using such a site and then repeat the
+  cookie operations using curl or libcurl.
diff --git a/curl/docs/HTTP2.md b/curl/docs/HTTP2.md
new file mode 100644
index 0000000..35b45ed
--- /dev/null
+++ b/curl/docs/HTTP2.md
@@ -0,0 +1,121 @@
+HTTP/2 with curl
+================
+
+[HTTP/2 Spec](https://www.rfc-editor.org/rfc/rfc7540.txt)
+[http2 explained](https://daniel.haxx.se/http2/)
+
+Build prerequisites
+-------------------
+  - nghttp2
+  - OpenSSL, libressl, BoringSSL, NSS, GnuTLS, mbedTLS, wolfSSL or Schannel
+    with a new enough version.
+
+[nghttp2](https://nghttp2.org/)
+-------------------------------
+
+libcurl uses this 3rd party library for the low level protocol handling
+parts. The reason for this is that HTTP/2 is much more complex at that layer
+than HTTP/1.1 (which we implement on our own) and that nghttp2 is an already
+existing and well functional library.
+
+We require at least version 1.12.0.
+
+Over an http:// URL
+-------------------
+
+If `CURLOPT_HTTP_VERSION` is set to `CURL_HTTP_VERSION_2_0`, libcurl will
+include an upgrade header in the initial request to the host to allow
+upgrading to HTTP/2.
+
+Possibly we can later introduce an option that will cause libcurl to fail if
+not possible to upgrade. Possibly we introduce an option that makes libcurl
+use HTTP/2 at once over http://
+
+Over an https:// URL
+--------------------
+
+If `CURLOPT_HTTP_VERSION` is set to `CURL_HTTP_VERSION_2_0`, libcurl will use
+ALPN (or NPN) to negotiate which protocol to continue with. Possibly introduce
+an option that will cause libcurl to fail if not possible to use HTTP/2.
+
+`CURL_HTTP_VERSION_2TLS` was added in 7.47.0 as a way to ask libcurl to prefer
+HTTP/2 for HTTPS but stick to 1.1 by default for plain old HTTP connections.
+
+ALPN is the TLS extension that HTTP/2 is expected to use. The NPN extension is
+for a similar purpose, was made prior to ALPN and is used for SPDY so early
+HTTP/2 servers are implemented using NPN before ALPN support is widespread.
+
+`CURLOPT_SSL_ENABLE_ALPN` and `CURLOPT_SSL_ENABLE_NPN` are offered to allow
+applications to explicitly disable ALPN or NPN.
+
+SSL libs
+--------
+
+The challenge is the ALPN and NPN support and all our different SSL
+backends. You may need a fairly updated SSL library version for it to provide
+the necessary TLS features. Right now we support:
+
+  - OpenSSL:          ALPN and NPN
+  - libressl:         ALPN and NPN
+  - BoringSSL:        ALPN and NPN
+  - NSS:              ALPN and NPN
+  - GnuTLS:           ALPN
+  - mbedTLS:          ALPN
+  - Schannel:         ALPN
+  - wolfSSL:          ALPN
+  - Secure Transport: ALPN
+
+Multiplexing
+------------
+
+Starting in 7.43.0, libcurl fully supports HTTP/2 multiplexing, which is the
+term for doing multiple independent transfers over the same physical TCP
+connection.
+
+To take advantage of multiplexing, you need to use the multi interface and set
+`CURLMOPT_PIPELINING` to `CURLPIPE_MULTIPLEX`. With that bit set, libcurl will
+attempt to re-use existing HTTP/2 connections and just add a new stream over
+that when doing subsequent parallel requests.
+
+While libcurl sets up a connection to an HTTP server there is a period during
+which it does not know if it can pipeline or do multiplexing and if you add new
+transfers in that period, libcurl will default to start new connections for
+those transfers. With the new option `CURLOPT_PIPEWAIT` (added in 7.43.0), you
+can ask that a transfer should rather wait and see in case there's a
+connection for the same host in progress that might end up being possible to
+multiplex on. It favours keeping the number of connections low to the cost of
+slightly longer time to first byte transferred.
+
+Applications
+------------
+
+We hide HTTP/2's binary nature and convert received HTTP/2 traffic to headers
+in HTTP 1.1 style. This allows applications to work unmodified.
+
+curl tool
+---------
+
+curl offers the `--http2` command line option to enable use of HTTP/2.
+
+curl offers the `--http2-prior-knowledge` command line option to enable use of
+HTTP/2 without HTTP/1.1 Upgrade.
+
+Since 7.47.0, the curl tool enables HTTP/2 by default for HTTPS connections.
+
+curl tool limitations
+---------------------
+
+The command line tool does not support HTTP/2 server push. It supports
+multiplexing when the parallel transfer option is used.
+
+HTTP Alternative Services
+-------------------------
+
+Alt-Svc is an extension with a corresponding frame (ALTSVC) in HTTP/2 that
+tells the client about an alternative "route" to the same content for the same
+origin server that you get the response from. A browser or long-living client
+can use that hint to create a new connection asynchronously. For libcurl, we
+may introduce a way to bring such clues to the application and/or let a
+subsequent request use the alternate route automatically.
+
+[Detailed in RFC 7838](https://datatracker.ietf.org/doc/html/rfc7838)
diff --git a/curl/docs/HTTP3.md b/curl/docs/HTTP3.md
new file mode 100644
index 0000000..f48fbd8
--- /dev/null
+++ b/curl/docs/HTTP3.md
@@ -0,0 +1,279 @@
+# HTTP3 (and QUIC)
+
+## Resources
+
+[HTTP/3 Explained](https://http3-explained.haxx.se/en/) - the online free
+book describing the protocols involved.
+
+[QUIC implementation](https://github.com/curl/curl/wiki/QUIC-implementation) -
+the wiki page describing the plan for how to support QUIC and HTTP/3 in curl
+and libcurl.
+
+[quicwg.org](https://quicwg.org/) - home of the official protocol drafts
+
+## QUIC libraries
+
+QUIC libraries we are experimenting with:
+
+[ngtcp2](https://github.com/ngtcp2/ngtcp2)
+
+[quiche](https://github.com/cloudflare/quiche)
+
+[msquic](https://github.com/microsoft/msquic) & [msh3](https://github.com/nibanks/msh3)
+
+## Experimental
+
+HTTP/3 and QUIC support in curl is considered **EXPERIMENTAL** until further
+notice. It needs to be enabled at build-time.
+
+Further development and tweaking of the HTTP/3 support in curl will happen in
+the master branch using pull-requests, just like ordinary changes.
+
+# ngtcp2 version
+
+## Build with OpenSSL
+
+Build (patched) OpenSSL
+
+     % git clone --depth 1 -b openssl-3.0.0+quic https://github.com/quictls/openssl
+     % cd openssl
+     % ./config enable-tls1_3 --prefix=
+     % make
+     % make install
+
+Build nghttp3
+
+     % cd ..
+     % git clone https://github.com/ngtcp2/nghttp3
+     % cd nghttp3
+     % autoreconf -fi
+     % ./configure --prefix= --enable-lib-only
+     % make
+     % make install
+
+Build ngtcp2
+
+     % cd ..
+     % git clone https://github.com/ngtcp2/ngtcp2
+     % cd ngtcp2
+     % autoreconf -fi
+     % ./configure PKG_CONFIG_PATH=/lib/pkgconfig:/lib/pkgconfig LDFLAGS="-Wl,-rpath,/lib" --prefix= --enable-lib-only
+     % make
+     % make install
+
+Build curl
+
+     % cd ..
+     % git clone https://github.com/curl/curl
+     % cd curl
+     % autoreconf -fi
+     % LDFLAGS="-Wl,-rpath,/lib" ./configure --with-openssl= --with-nghttp3= --with-ngtcp2=
+     % make
+     % make install
+
+For OpenSSL 3.0.0 or later builds on Linux for x86_64 architecture, substitute all occurrences of "/lib" with "/lib64"
+
+## Build with GnuTLS
+
+Build GnuTLS
+
+     % git clone --depth 1 https://gitlab.com/gnutls/gnutls.git
+     % cd gnutls
+     % ./bootstrap
+     % ./configure --prefix=
+     % make
+     % make install
+
+Build nghttp3
+
+     % cd ..
+     % git clone https://github.com/ngtcp2/nghttp3
+     % cd nghttp3
+     % autoreconf -fi
+     % ./configure --prefix= --enable-lib-only
+     % make
+     % make install
+
+Build ngtcp2
+
+     % cd ..
+     % git clone https://github.com/ngtcp2/ngtcp2
+     % cd ngtcp2
+     % autoreconf -fi
+     % ./configure PKG_CONFIG_PATH=/lib/pkgconfig:/lib/pkgconfig LDFLAGS="-Wl,-rpath,/lib" --prefix= --enable-lib-only --with-gnutls
+     % make
+     % make install
+
+Build curl
+
+     % cd ..
+     % git clone https://github.com/curl/curl
+     % cd curl
+     % autoreconf -fi
+     % ./configure --without-openssl --with-gnutls= --with-nghttp3= --with-ngtcp2=
+     % make
+     % make install
+
+# quiche version
+
+## build
+
+Build quiche and BoringSSL:
+
+     % git clone --recursive https://github.com/cloudflare/quiche
+     % cd quiche
+     % cargo build --package quiche --release --features ffi,pkg-config-meta,qlog
+     % mkdir quiche/deps/boringssl/src/lib
+     % ln -vnf $(find target/release -name libcrypto.a -o -name libssl.a) quiche/deps/boringssl/src/lib/
+
+Build curl:
+
+     % cd ..
+     % git clone https://github.com/curl/curl
+     % cd curl
+     % autoreconf -fi
+     % ./configure LDFLAGS="-Wl,-rpath,$PWD/../quiche/target/release" --with-openssl=$PWD/../quiche/quiche/deps/boringssl/src --with-quiche=$PWD/../quiche/target/release
+     % make
+     % make install
+
+ If `make install` results in `Permission denied` error, you will need to prepend it with `sudo`.
+
+# msh3 (msquic) version
+
+## Build Linux (with quictls fork of OpenSSL)
+
+Build msh3:
+
+     % git clone --depth 1 --recursive https://github.com/nibanks/msh3
+     % cd msh3 && mkdir build && cd build
+     % cmake -G 'Unix Makefiles' -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
+     % cmake --build .
+     % cmake --install .
+
+Build curl:
+
+     % git clone https://github.com/curl/curl
+     % cd curl
+     % autoreconf -fi
+     % ./configure LDFLAGS="-Wl,-rpath,/usr/local/lib" --with-msh3=/usr/local --with-openssl
+     % make
+     % make install
+
+Run from `/usr/local/bin/curl`.
+
+## Build Windows
+
+Build msh3:
+
+     % git clone --depth 1 --recursive https://github.com/nibanks/msh3
+     % cd msh3 && mkdir build && cd build
+     % cmake -G 'Visual Studio 17 2022' -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
+     % cmake --build . --config Release
+     % cmake --install . --config Release
+
+**Note** - On Windows, Schannel will be used for TLS support by default. If
+you with to use (the quictls fork of) OpenSSL, specify the `-DQUIC_TLS=openssl`
+option to the generate command above. Also note that OpenSSL brings with it an
+additional set of build dependencies not specified here.
+
+Build curl (in [Visual Studio Command prompt](../winbuild/README.md#open-a-command-prompt)):
+
+     % git clone https://github.com/curl/curl
+     % cd curl/winbuild
+     % nmake /f Makefile.vc mode=dll WITH_MSH3=dll MSH3_PATH="C:/Program Files/msh3" MACHINE=x64
+
+**Note** - If you encounter a build error with `tool_hugehelp.c` being missing,
+rename `tool_hugehelp.c.cvs` in the same directory to `tool_hugehelp.c` and
+then run `nmake` again.
+
+Run in the `C:/Program Files/msh3/lib` directory, copy `curl.exe` to that
+directory, or copy `msquic.dll` and `msh3.dll` from that directory to the
+`curl.exe` directory. For example:
+
+     % C:\Program Files\msh3\lib> F:\curl\builds\libcurl-vc-x64-release-dll-ipv6-sspi-schannel-msh3\bin\curl.exe --http3 https://www.google.com
+
+# `--http3`
+
+Use HTTP/3 directly:
+
+    curl --http3 https://nghttp2.org:4433/
+
+Upgrade via Alt-Svc:
+
+    curl --alt-svc altsvc.cache https://quic.aiortc.org/
+
+See this [list of public HTTP/3 servers](https://bagder.github.io/HTTP3-test/)
+
+## Known Bugs
+
+Check out the [list of known HTTP3 bugs](https://curl.se/docs/knownbugs.html#HTTP3).
+
+# HTTP/3 Test server
+
+This is not advice on how to run anything in production. This is for
+development and experimenting.
+
+## Prerequisite(s)
+
+An existing local HTTP/1.1 server that hosts files. Preferably also a few huge
+ones.  You can easily create huge local files like `truncate -s=8G 8GB` - they
+are huge but do not occupy that much space on disk since they are just big
+holes.
+
+In my Debian setup I just installed **apache2**. It runs on port 80 and has a
+document root in `/var/www/html`. I can get the 8GB file from it with `curl
+localhost/8GB -o dev/null`
+
+In this description we setup and run an HTTP/3 reverse-proxy in front of the
+HTTP/1 server.
+
+## Setup
+
+You can select either or both of these server solutions.
+
+### nghttpx
+
+Get, build and install **quictls**, **nghttp3** and **ngtcp2** as described
+above.
+
+Get, build and install **nghttp2**:
+
+    git clone https://github.com/nghttp2/nghttp2.git
+    cd nghttp2
+    autoreconf -fi
+    PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/home/daniel/build-quictls/lib/pkgconfig:/home/daniel/build-nghttp3/lib/pkgconfig:/home/daniel/build-ngtcp2/lib/pkgconfig  LDFLAGS=-L/home/daniel/build-quictls/lib CFLAGS=-I/home/daniel/build-quictls/include ./configure --enable-maintainer-mode --prefix=/home/daniel/build-nghttp2 --disable-shared --enable-app --enable-http3 --without-jemalloc --without-libxml2 --without-systemd
+    make && make install
+
+Run the local h3 server on port 9443, make it proxy all traffic through to
+HTTP/1 on localhost port 80. For local toying, we can just use the test cert
+that exists in curl's test dir.
+
+    CERT=$CURLSRC/tests/stunnel.pem
+    $HOME/bin/nghttpx $CERT $CERT --backend=localhost,80 \
+      --frontend="localhost,9443;quic"
+
+### Caddy
+
+[Install caddy](https://caddyserver.com/docs/install), you can even put the
+single binary in a separate directory if you prefer.
+
+In the same directory you put caddy, create a `Caddyfile` with the following
+content to run an HTTP/3 reverse-proxy on port 7443:
+~~~
+{
+    auto_https disable_redirects
+	servers :7443 {
+		protocol {
+			experimental_http3
+		}
+	}
+}
+
+localhost:7443 {
+	reverse_proxy localhost:80
+}
+~~~
+
+Then run caddy:
+
+    ./caddy start
diff --git a/curl/docs/HYPER.md b/curl/docs/HYPER.md
new file mode 100644
index 0000000..ad23a90
--- /dev/null
+++ b/curl/docs/HYPER.md
@@ -0,0 +1,73 @@
+# Hyper
+
+Hyper is a separate HTTP library written in Rust. curl can be told to use this
+library as a backend to deal with HTTP.
+
+## Experimental!
+
+Hyper support in curl is considered **EXPERIMENTAL** until further notice. It
+needs to be explicitly enabled at build-time.
+
+Further development and tweaking of the Hyper backend support in curl will
+happen in in the master branch using pull-requests, just like ordinary
+changes.
+
+## Hyper version
+
+The C API for Hyper is brand new and is still under development.
+
+## build curl with hyper
+
+Since March 3 2022, hyper needs the nightly rustc to build, which you may need
+to install first with:
+
+     % rustup toolchain install nightly
+
+Then build hyper and enable its C API like this:
+
+     % git clone https://github.com/hyperium/hyper
+     % cd hyper
+     % RUSTFLAGS="--cfg hyper_unstable_ffi" cargo +nightly rustc --features client,http1,http2,ffi -Z unstable-options --crate-type cdylib
+
+Build curl to use hyper's C API:
+
+     % git clone https://github.com/curl/curl
+     % cd curl
+     % autoreconf -fi
+     % ./configure --with-hyper=
+     % make
+
+# using Hyper internally
+
+Hyper is a low level HTTP transport library. curl itself provides all HTTP
+headers and Hyper provides all received headers back to curl.
+
+Therefore, most of the "header logic" in curl as in responding to and acting
+on specific input and output headers are done the same way in curl code.
+
+The API in Hyper delivers received HTTP headers as (cleaned up) name=value
+pairs, making it impossible for curl to know the exact byte representation
+over the wire with Hyper.
+
+## Limitations
+
+The hyper backend does not support
+
+- `CURLOPT_IGNORE_CONTENT_LENGTH`
+- `--raw` and disabling `CURLOPT_HTTP_TRANSFER_DECODING`
+- RTSP
+- hyper is much stricter about what HTTP header contents it allows
+- HTTP/0.9
+- HTTP/2 upgrade using HTTP:// URLs. Aka 'h2c'
+
+## Remaining issues
+
+This backend is still not feature complete with the native backend. Areas that
+still need attention and verification include:
+
+- multiplexed HTTP/2
+- h2 Upgrade:
+- pausing transfers
+- receiving HTTP/1 trailers
+- sending HTTP/1 trailers
+
diff --git a/curl/docs/INSTALL b/curl/docs/INSTALL
new file mode 100644
index 0000000..ff260b1
--- /dev/null
+++ b/curl/docs/INSTALL
@@ -0,0 +1,9 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+                                How To Compile
+
+see INSTALL.md
diff --git a/curl/docs/INSTALL.cmake b/curl/docs/INSTALL.cmake
new file mode 100644
index 0000000..3f905d7
--- /dev/null
+++ b/curl/docs/INSTALL.cmake
@@ -0,0 +1,89 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+                                How To Compile with CMake
+
+Building with CMake
+==========================
+   This document describes how to compile, build and install curl and libcurl
+   from source code using the CMake build tool. To build with CMake, you will
+   of course have to first install CMake.  The minimum required version of
+   CMake is specified in the file CMakeLists.txt found in the top of the curl
+   source tree. Once the correct version of CMake is installed you can follow
+   the instructions below for the platform you are building on.
+
+   CMake builds can be configured either from the command line, or from one
+   of CMake's GUI's.
+
+Current flaws in the curl CMake build
+=====================================
+
+   Missing features in the cmake build:
+
+   - Builds libcurl without large file support
+   - Does not support all SSL libraries (only OpenSSL, Schannel,
+     Secure Transport, and mbed TLS, NSS, WolfSSL)
+   - Does not allow different resolver backends (no c-ares build support)
+   - No RTMP support built
+   - Does not allow build curl and libcurl debug enabled
+   - Does not allow a custom CA bundle path
+   - Does not allow you to disable specific protocols from the build
+   - Does not find or use krb4 or GSS
+   - Rebuilds test files too eagerly, but still cannot run the tests
+   - Does not detect the correct strerror_r flavor when cross-compiling (issue #1123)
+
+
+Command Line CMake
+==================
+   A CMake build of curl is similar to the autotools build of curl. It
+   consists of the following steps after you have unpacked the source.
+
+    1. Create an out of source build tree parallel to the curl source
+       tree and change into that directory
+
+    $ mkdir curl-build
+    $ cd curl-build
+
+    2. Run CMake from the build tree, giving it the path to the top of
+       the curl source tree.  CMake will pick a compiler for you. If you
+       want to specify the compile, you can set the CC environment
+       variable prior to running CMake.
+
+    $ cmake ../curl
+    $ make
+
+    3. Install to default location:
+
+    $ make install
+
+    (The test suite does not work with the cmake build)
+
+ccmake
+=========
+     CMake comes with a curses based interface called ccmake.  To run ccmake on
+     a curl use the instructions for the command line cmake, but substitute
+     ccmake ../curl for cmake ../curl.  This will bring up a curses interface
+     with instructions on the bottom of the screen. You can press the "c" key
+     to configure the project, and the "g" key to generate the project. After
+     the project is generated, you can run make.
+
+cmake-gui
+=========
+     CMake also comes with a Qt based GUI called cmake-gui. To configure with
+     cmake-gui, you run cmake-gui and follow these steps:
+        1. Fill in the "Where is the source code" combo box with the path to
+        the curl source tree.
+        2. Fill in the "Where to build the binaries" combo box with the path
+        to the directory for your build tree, ideally this should not be the
+        same as the source tree, but a parallel directory called curl-build or
+        something similar.
+        3. Once the source and binary directories are specified, press the
+        "Configure" button.
+        4. Select the native build tool that you want to use.
+        5. At this point you can change any of the options presented in the
+        GUI.  Once you have selected all the options you want, click the
+        "Generate" button.
+        6. Run the native build tool that you used CMake to generate.
diff --git a/curl/docs/INSTALL.md b/curl/docs/INSTALL.md
new file mode 100644
index 0000000..03d7384
--- /dev/null
+++ b/curl/docs/INSTALL.md
@@ -0,0 +1,556 @@
+# how to install curl and libcurl
+
+## Installing Binary Packages
+
+Lots of people download binary distributions of curl and libcurl. This
+document does not describe how to install curl or libcurl using such a binary
+package. This document describes how to compile, build and install curl and
+libcurl from source code.
+
+## Building using vcpkg
+
+You can download and install curl and libcurl using the [vcpkg](https://github.com/Microsoft/vcpkg/) dependency manager:
+
+    git clone https://github.com/Microsoft/vcpkg.git
+    cd vcpkg
+    ./bootstrap-vcpkg.sh
+    ./vcpkg integrate install
+    vcpkg install curl[tool]
+
+The curl port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
+
+## Building from git
+
+If you get your code off a git repository instead of a release tarball, see
+the `GIT-INFO` file in the root directory for specific instructions on how to
+proceed.
+
+# Unix
+
+A normal Unix installation is made in three or four steps (after you have
+unpacked the source archive):
+
+    ./configure --with-openssl [--with-gnutls --with-wolfssl]
+    make
+    make test (optional)
+    make install
+
+(Adjust the configure line accordingly to use the TLS library you want.)
+
+You probably need to be root when doing the last command.
+
+Get a full listing of all available configure options by invoking it like:
+
+    ./configure --help
+
+If you want to install curl in a different file hierarchy than `/usr/local`,
+specify that when running configure:
+
+    ./configure --prefix=/path/to/curl/tree
+
+If you have write permission in that directory, you can do 'make install'
+without being root. An example of this would be to make a local install in
+your own home directory:
+
+    ./configure --prefix=$HOME
+    make
+    make install
+
+The configure script always tries to find a working SSL library unless
+explicitly told not to. If you have OpenSSL installed in the default search
+path for your compiler/linker, you do not need to do anything special. If you
+have OpenSSL installed in `/usr/local/ssl`, you can run configure like:
+
+    ./configure --with-openssl
+
+If you have OpenSSL installed somewhere else (for example, `/opt/OpenSSL`) and
+you have pkg-config installed, set the pkg-config path first, like this:
+
+    env PKG_CONFIG_PATH=/opt/OpenSSL/lib/pkgconfig ./configure --with-openssl
+
+Without pkg-config installed, use this:
+
+    ./configure --with-openssl=/opt/OpenSSL
+
+If you insist on forcing a build without SSL support, even though you may
+have OpenSSL installed in your system, you can run configure like this:
+
+    ./configure --without-ssl
+
+If you have OpenSSL installed, but with the libraries in one place and the
+header files somewhere else, you have to set the `LDFLAGS` and `CPPFLAGS`
+environment variables prior to running configure. Something like this should
+work:
+
+    CPPFLAGS="-I/path/to/ssl/include" LDFLAGS="-L/path/to/ssl/lib" ./configure
+
+If you have shared SSL libs installed in a directory where your runtime
+linker does not find them (which usually causes configure failures), you can
+provide this option to gcc to set a hard-coded path to the runtime linker:
+
+    LDFLAGS=-Wl,-R/usr/local/ssl/lib ./configure --with-openssl
+
+## More Options
+
+To force a static library compile, disable the shared library creation by
+running configure like:
+
+    ./configure --disable-shared
+
+To tell the configure script to skip searching for thread-safe functions, add
+an option like:
+
+    ./configure --disable-thread
+
+If you are a curl developer and use gcc, you might want to enable more debug
+options with the `--enable-debug` option.
+
+curl can be built to use a whole range of libraries to provide various useful
+services, and configure will try to auto-detect a decent default. But if you
+want to alter it, you can select how to deal with each individual library.
+
+## Select TLS backend
+
+These options are provided to select the TLS backend to use.
+
+ - AmiSSL: `--with-amissl`
+ - BearSSL: `--with-bearssl`
+ - GnuTLS: `--with-gnutls`.
+ - mbedTLS: `--with-mbedtls`
+ - NSS: `--with-nss`
+ - OpenSSL: `--with-openssl` (also for BoringSSL and libressl)
+ - rustls: `--with-rustls`
+ - schannel: `--with-schannel`
+ - secure transport: `--with-secure-transport`
+ - wolfSSL: `--with-wolfssl`
+
+# Windows
+
+## Building Windows DLLs and C runtime (CRT) linkage issues
+
+ As a general rule, building a DLL with static CRT linkage is highly
+ discouraged, and intermixing CRTs in the same app is something to avoid at
+ any cost.
+
+ Reading and comprehending Microsoft Knowledge Base articles KB94248 and
+ KB140584 is a must for any Windows developer. Especially important is full
+ understanding if you are not going to follow the advice given above.
+
+ - [How To Use the C Run-Time](https://support.microsoft.com/help/94248/how-to-use-the-c-run-time)
+ - [Run-Time Library Compiler Options](https://docs.microsoft.com/cpp/build/reference/md-mt-ld-use-run-time-library)
+ - [Potential Errors Passing CRT Objects Across DLL Boundaries](https://docs.microsoft.com/cpp/c-runtime-library/potential-errors-passing-crt-objects-across-dll-boundaries)
+
+If your app is misbehaving in some strange way, or it is suffering from
+memory corruption, before asking for further help, please try first to
+rebuild every single library your app uses as well as your app using the
+debug multithreaded dynamic C runtime.
+
+ If you get linkage errors read section 5.7 of the FAQ document.
+
+## MingW32
+
+Make sure that MinGW32's bin directory is in the search path, for example:
+
+```cmd
+set PATH=c:\mingw32\bin;%PATH%
+```
+
+then run `mingw32-make mingw32` in the root dir. There are other
+make targets available to build libcurl with more features, use:
+
+ - `mingw32-make mingw32-zlib` to build with Zlib support;
+ - `mingw32-make mingw32-ssl-zlib` to build with SSL and Zlib enabled;
+ - `mingw32-make mingw32-ssh2-ssl-zlib` to build with SSH2, SSL, Zlib;
+ - `mingw32-make mingw32-ssh2-ssl-sspi-zlib` to build with SSH2, SSL, Zlib
+   and SSPI support.
+
+If you have any problems linking libraries or finding header files, be sure
+to verify that the provided `Makefile.m32` files use the proper paths, and
+adjust as necessary. It is also possible to override these paths with
+environment variables, for example:
+
+```cmd
+set ZLIB_PATH=c:\zlib-1.2.8
+set OPENSSL_PATH=c:\openssl-1.0.2c
+set LIBSSH2_PATH=c:\libssh2-1.6.0
+```
+
+It is also possible to build with other LDAP SDKs than MS LDAP; currently
+it is possible to build with native Win32 OpenLDAP, or with the Novell CLDAP
+SDK. If you want to use these you need to set these vars:
+
+```cmd
+set LDAP_SDK=c:\openldap
+set USE_LDAP_OPENLDAP=1
+```
+
+or for using the Novell SDK:
+
+```cmd
+set USE_LDAP_NOVELL=1
+```
+
+If you want to enable LDAPS support then set LDAPS=1.
+
+## Cygwin
+
+Almost identical to the Unix installation. Run the configure script in the
+curl source tree root with `sh configure`. Make sure you have the `sh`
+executable in `/bin/` or you will see the configure fail toward the end.
+
+Run `make`
+
+## Disabling Specific Protocols in Windows builds
+
+The configure utility, unfortunately, is not available for the Windows
+environment, therefore, you cannot use the various disable-protocol options of
+the configure utility on this platform.
+
+You can use specific defines to disable specific protocols and features. See
+[CURL-DISABLE.md](CURL-DISABLE.md) for the full list.
+
+If you want to set any of these defines you have the following options:
+
+ - Modify `lib/config-win32.h`
+ - Modify `lib/curl_setup.h`
+ - Modify `winbuild/Makefile.vc`
+ - Modify the "Preprocessor Definitions" in the libcurl project
+
+Note: The pre-processor settings can be found using the Visual Studio IDE
+under "Project -> Properties -> Configuration Properties -> C/C++ ->
+Preprocessor".
+
+## Using BSD-style lwIP instead of Winsock TCP/IP stack in Win32 builds
+
+In order to compile libcurl and curl using BSD-style lwIP TCP/IP stack it is
+necessary to make the definition of the preprocessor symbol `USE_LWIPSOCK`
+visible to libcurl and curl compilation processes. To set this definition you
+have the following alternatives:
+
+ - Modify `lib/config-win32.h` and `src/config-win32.h`
+ - Modify `winbuild/Makefile.vc`
+ - Modify the "Preprocessor Definitions" in the libcurl project
+
+Note: The pre-processor settings can be found using the Visual Studio IDE
+under "Project -> Properties -> Configuration Properties -> C/C++ ->
+Preprocessor".
+
+Once that libcurl has been built with BSD-style lwIP TCP/IP stack support, in
+order to use it with your program it is mandatory that your program includes
+lwIP header file `` (or another lwIP header that includes this)
+before including any libcurl header. Your program does not need the
+`USE_LWIPSOCK` preprocessor definition which is for libcurl internals only.
+
+Compilation has been verified with [lwIP
+1.4.0](https://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip) and
+[contrib-1.4.0](https://download.savannah.gnu.org/releases/lwip/contrib-1.4.0.zip).
+
+This BSD-style lwIP TCP/IP stack support must be considered experimental given
+that it has been verified that lwIP 1.4.0 still needs some polish, and libcurl
+might yet need some additional adjustment, caveat emptor.
+
+## Important static libcurl usage note
+
+When building an application that uses the static libcurl library on Windows,
+you must add `-DCURL_STATICLIB` to your `CFLAGS`. Otherwise the linker will
+look for dynamic import symbols.
+
+## Legacy Windows and SSL
+
+Schannel (from Windows SSPI), is the native SSL library in Windows. However,
+Schannel in Windows <= XP is unable to connect to servers that
+no longer support the legacy handshakes and algorithms used by those
+versions. If you will be using curl in one of those earlier versions of
+Windows you should choose another SSL backend such as OpenSSL.
+
+# Apple Platforms (macOS, iOS, tvOS, watchOS, and their simulator counterparts)
+
+On modern Apple operating systems, curl can be built to use Apple's SSL/TLS
+implementation, Secure Transport, instead of OpenSSL. To build with Secure
+Transport for SSL/TLS, use the configure option `--with-secure-transport`. (It
+is not necessary to use the option `--without-openssl`.)
+
+When Secure Transport is in use, the curl options `--cacert` and `--capath`
+and their libcurl equivalents, will be ignored, because Secure Transport uses
+the certificates stored in the Keychain to evaluate whether or not to trust
+the server. This, of course, includes the root certificates that ship with the
+OS. The `--cert` and `--engine` options, and their libcurl equivalents, are
+currently unimplemented in curl with Secure Transport.
+
+In general, a curl build for an Apple `ARCH/SDK/DEPLOYMENT_TARGET` combination
+can be taken by providing appropriate values for `ARCH`, `SDK`, `DEPLOYMENT_TARGET`
+below and running the commands:
+
+```bash
+# Set these three according to your needs
+export ARCH=x86_64
+export SDK=macosx
+export DEPLOYMENT_TARGET=10.8
+
+export CFLAGS="-arch $ARCH -isysroot $(xcrun -sdk $SDK --show-sdk-path) -m$SDK-version-min=$DEPLOYMENT_TARGET"
+./configure --host=$ARCH-apple-darwin --prefix $(pwd)/artifacts --with-secure-transport
+make -j8
+make install
+```
+
+Above will build curl for macOS platform with `x86_64` architecture and `10.8` as deployment target.
+
+Here is an example for iOS device:
+
+```bash
+export ARCH=arm64
+export SDK=iphoneos
+export DEPLOYMENT_TARGET=11.0
+
+export CFLAGS="-arch $ARCH -isysroot $(xcrun -sdk $SDK --show-sdk-path) -m$SDK-version-min=$DEPLOYMENT_TARGET"
+./configure --host=$ARCH-apple-darwin --prefix $(pwd)/artifacts --with-secure-transport
+make -j8
+make install
+```
+
+Another example for watchOS simulator for macs with Apple Silicon:
+
+```bash
+export ARCH=arm64
+export SDK=watchsimulator
+export DEPLOYMENT_TARGET=5.0
+
+export CFLAGS="-arch $ARCH -isysroot $(xcrun -sdk $SDK --show-sdk-path) -m$SDK-version-min=$DEPLOYMENT_TARGET"
+./configure --host=$ARCH-apple-darwin --prefix $(pwd)/artifacts --with-secure-transport
+make -j8
+make install
+```
+
+In all above, the built libraries and executables can be found in the
+`artifacts` folder.
+
+# Android
+
+When building curl for Android it's recommended to use a Linux environment
+since using curl's `configure` script is the easiest way to build curl
+for Android. Before you can build curl for Android, you need to install the
+Android NDK first. This can be done using the SDK Manager that is part of
+Android Studio. Once you have installed the Android NDK, you need to figure out
+where it has been installed and then set up some environment variables before
+launching `configure`. On macOS, those variables could look like this to compile
+for `aarch64` and API level 29:
+
+```bash
+export NDK=~/Library/Android/sdk/ndk/20.1.5948944
+export HOST_TAG=darwin-x86_64
+export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/$HOST_TAG
+export AR=$TOOLCHAIN/bin/aarch64-linux-android-ar
+export AS=$TOOLCHAIN/bin/aarch64-linux-android-as
+export CC=$TOOLCHAIN/bin/aarch64-linux-android29-clang
+export CXX=$TOOLCHAIN/bin/aarch64-linux-android29-clang++
+export LD=$TOOLCHAIN/bin/aarch64-linux-android-ld
+export RANLIB=$TOOLCHAIN/bin/aarch64-linux-android-ranlib
+export STRIP=$TOOLCHAIN/bin/aarch64-linux-android-strip
+```
+
+When building on Linux or targeting other API levels or architectures, you need
+to adjust those variables accordingly. After that you can build curl like this:
+
+    ./configure --host aarch64-linux-android --with-pic --disable-shared
+
+Note that this will not give you SSL/TLS support. If you need SSL/TLS, you have
+to build curl against a SSL/TLS layer, e.g. OpenSSL, because it's impossible for
+curl to access Android's native SSL/TLS layer. To build curl for Android using
+OpenSSL, follow the OpenSSL build instructions and then install `libssl.a` and
+`libcrypto.a` to `$TOOLCHAIN/sysroot/usr/lib` and copy `include/openssl` to
+`$TOOLCHAIN/sysroot/usr/include`. Now you can build curl for Android using
+OpenSSL like this:
+
+    ./configure --host aarch64-linux-android --with-pic --disable-shared --with-openssl="$TOOLCHAIN/sysroot/usr"
+
+Note, however, that you must target at least Android M (API level 23) or `configure`
+will not be able to detect OpenSSL since `stderr` (and the like) were not defined
+before Android M.
+
+# IBM i
+
+For IBM i (formerly OS/400), you can use curl in two different ways:
+
+- Natively, running in the **ILE**. The obvious use is being able to call curl
+  from ILE C or RPG applications.
+  - You will need to build this from source. See `packages/OS400/README` for
+    the ILE specific build instructions.
+- In the **PASE** environment, which runs AIX programs. curl will be built as
+  it would be on AIX.
+  - IBM provides builds of curl in their Yum repository for PASE software.
+  - To build from source, follow the Unix instructions.
+
+There are some additional limitations and quirks with curl on this platform;
+they affect both environments.
+
+## Multithreading notes
+
+By default, jobs in IBM i will not start with threading enabled. (Exceptions
+include interactive PASE sessions started by `QP2TERM` or SSH.) If you use
+curl in an environment without threading when options like async DNS were
+enabled, you will get messages like:
+
+```
+getaddrinfo() thread failed to start
+```
+
+Do not panic. curl and your program are not broken. You can fix this by:
+
+- Set the environment variable `QIBM_MULTI_THREADED` to `Y` before starting
+  your program. This can be done at whatever scope you feel is appropriate.
+- Alternatively, start the job with the `ALWMLTTHD` parameter set to `*YES`.
+
+# Cross compile
+
+Download and unpack the curl package.
+
+`cd` to the new directory. (e.g. `cd curl-7.12.3`)
+
+Set environment variables to point to the cross-compile toolchain and call
+configure with any options you need. Be sure and specify the `--host` and
+`--build` parameters at configuration time. The following script is an
+example of cross-compiling for the IBM 405GP PowerPC processor using the
+toolchain from MonteVista for Hardhat Linux.
+
+```bash
+#! /bin/sh
+
+export PATH=$PATH:/opt/hardhat/devkit/ppc/405/bin
+export CPPFLAGS="-I/opt/hardhat/devkit/ppc/405/target/usr/include"
+export AR=ppc_405-ar
+export AS=ppc_405-as
+export LD=ppc_405-ld
+export RANLIB=ppc_405-ranlib
+export CC=ppc_405-gcc
+export NM=ppc_405-nm
+
+./configure --target=powerpc-hardhat-linux
+    --host=powerpc-hardhat-linux
+    --build=i586-pc-linux-gnu
+    --prefix=/opt/hardhat/devkit/ppc/405/target/usr/local
+    --exec-prefix=/usr/local
+```
+
+You may also need to provide a parameter like `--with-random=/dev/urandom` to
+configure as it cannot detect the presence of a random number generating
+device for a target system. The `--prefix` parameter specifies where curl
+will be installed. If `configure` completes successfully, do `make` and `make
+install` as usual.
+
+In some cases, you may be able to simplify the above commands to as little as:
+
+    ./configure --host=ARCH-OS
+
+# REDUCING SIZE
+
+There are a number of configure options that can be used to reduce the size of
+libcurl for embedded applications where binary size is an important factor.
+First, be sure to set the `CFLAGS` variable when configuring with any relevant
+compiler optimization flags to reduce the size of the binary. For gcc, this
+would mean at minimum the -Os option, and potentially the `-march=X`,
+`-mdynamic-no-pic` and `-flto` options as well, e.g.
+
+    ./configure CFLAGS='-Os' LDFLAGS='-Wl,-Bsymbolic'...
+
+Note that newer compilers often produce smaller code than older versions
+due to improved optimization.
+
+Be sure to specify as many `--disable-` and `--without-` flags on the
+configure command-line as you can to disable all the libcurl features that you
+know your application is not going to need. Besides specifying the
+`--disable-PROTOCOL` flags for all the types of URLs your application will not
+use, here are some other flags that can reduce the size of the library by
+disabling support for some feature:
+
+ - `--disable-alt-svc` (HTTP Alt-Srv)
+ - `--disable-ares` (the C-ARES DNS library)
+ - `--disable-cookies` (HTTP cookies)
+ - `--disable-crypto-auth` (cryptographic authentication)
+ - `--disable-dateparse` (date parsing for time conditionals)
+ - `--disable-dnsshuffle` (internal server load spreading)
+ - `--disable-doh` (DNS-over-HTTP)
+ - `--disable-get-easy-options` (lookup easy options at runtime)
+ - `--disable-hsts` (HTTP Strict Transport Security)
+ - `--disable-http-auth` (all HTTP authentication)
+ - `--disable-ipv6` (IPv6)
+ - `--disable-libcurl-option` (--libcurl C code generation support)
+ - `--disable-manual` (built-in documentation)
+ - `--disable-netrc`  (.netrc file)
+ - `--disable-ntlm-wb` (NTLM WinBind)
+ - `--disable-progress-meter` (graphical progress meter in library)
+ - `--disable-proxy` (HTTP and SOCKS proxies)
+ - `--disable-pthreads` (multithreading)
+ - `--disable-socketpair` (socketpair for async name resolving)
+ - `--disable-threaded-resolver`  (threaded name resolver)
+ - `--disable-tls-srp` (Secure Remote Password authentication for TLS)
+ - `--disable-unix-sockets` (UNIX sockets)
+ - `--disable-verbose` (eliminates debugging strings and error code strings)
+ - `--disable-versioned-symbols` (versioned symbols)
+ - `--enable-symbol-hiding` (eliminates unneeded symbols in the shared library)
+ - `--without-brotli` (Brotli on-the-fly decompression)
+ - `--without-libpsl` (Public Suffix List in cookies)
+ - `--without-nghttp2` (HTTP/2 using nghttp2)
+ - `--without-ngtcp2` (HTTP/2 using ngtcp2)
+ - `--without-zstd` (Zstd on-the-fly decompression)
+ - `--without-libidn2` (internationalized domain names)
+ - `--without-librtmp` (RTMP)
+ - `--without-ssl` (SSL/TLS)
+ - `--without-zlib` (on-the-fly decompression)
+
+The GNU compiler and linker have a number of options that can reduce the
+size of the libcurl dynamic libraries on some platforms even further.
+Specify them by providing appropriate `CFLAGS` and `LDFLAGS` variables on
+the configure command-line, e.g.
+
+    CFLAGS="-Os -ffunction-sections -fdata-sections
+            -fno-unwind-tables -fno-asynchronous-unwind-tables -flto"
+    LDFLAGS="-Wl,-s -Wl,-Bsymbolic -Wl,--gc-sections"
+
+Be sure also to strip debugging symbols from your binaries after compiling
+using 'strip' (or the appropriate variant if cross-compiling). If space is
+really tight, you may be able to remove some unneeded sections of the shared
+library using the -R option to objcopy (e.g. the .comment section).
+
+Using these techniques it is possible to create a basic HTTP-only libcurl
+shared library for i386 Linux platforms that is only 133 KiB in size
+(as of libcurl version 7.80.0, using gcc 11.2.0).
+
+You may find that statically linking libcurl to your application will result
+in a lower total size than dynamically linking.
+
+Note that the curl test harness can detect the use of some, but not all, of
+the `--disable` statements suggested above. Use will cause tests relying on
+those features to fail. The test harness can be manually forced to skip the
+relevant tests by specifying certain key words on the `runtests.pl` command
+line. Following is a list of appropriate key words for those configure options
+that are not automatically detected:
+
+ - `--disable-cookies`          !cookies
+ - `--disable-dateparse`        !RETRY-AFTER !CURLOPT_TIMECONDITION !CURLINFO_FILETIME !If-Modified-Since !getdate !-z
+ - `--disable-libcurl-option`   !--libcurl
+ - `--disable-verbose`          !verbose\ logs
+
+# PORTS
+
+This is a probably incomplete list of known CPU architectures and operating
+systems that curl has been compiled for. If you know a system curl compiles
+and runs on, that is not listed, please let us know!
+
+## 85 Operating Systems
+
+AIX, AmigaOS, Android, Aros, BeOS, Blackberry 10, Blackberry Tablet OS, Cell
+OS, ChromeOS, Cisco IOS, Cygwin, Dragonfly BSD, eCOS, FreeBSD, FreeDOS,
+FreeRTOS, Fuchsia, Garmin OS, Genode, Haiku, HardenedBSD, HP-UX, Hurd,
+Illumos, Integrity, iOS, ipadOS, IRIX, LineageOS, Linux, Lua RTOS, Mac OS 9,
+macOS, Mbed, Micrium, MINIX, MorphOS, MPE/iX, MS-DOS, NCR MP-RAS, NetBSD,
+Netware, Nintendo Switch, NonStop OS, NuttX, OpenBSD, OpenStep, Orbis OS,
+OS/2, OS/400, OS21, Plan 9, PlayStation Portable, QNX, Qubes OS, ReactOS,
+Redox, RICS OS, Sailfish OS, SCO Unix, Serenity, SINIX-Z, Solaris, SunOS,
+Syllable OS, Symbian, Tizen, TPF, Tru64, tvOS, ucLinux, Ultrix, UNICOS,
+UnixWare, VMS, vxWorks, WebOS, Wii system software, Windows, Windows CE, Xbox
+System, z/OS, z/TPF, z/VM, z/VSE
+
+## 22 CPU Architectures
+
+Alpha, ARC, ARM, AVR32, Cell, HP-PA, Itanium, m68k, MicroBlaze, MIPS, Nios,
+OpenRISC, POWER, PowerPC, RISC-V, s390, SH4, SPARC, VAX, x86, x86-64, Xtensa
diff --git a/curl/docs/INTERNALS.md b/curl/docs/INTERNALS.md
new file mode 100644
index 0000000..c9fe47e
--- /dev/null
+++ b/curl/docs/INTERNALS.md
@@ -0,0 +1,60 @@
+# curl internals
+
+The canonical libcurl internals documentation is now in the [everything
+curl](https://everything.curl.dev/internals) book. This file lists supported
+versions of libs, tools and operating systems.
+
+## Portability
+
+ We write curl and libcurl to compile with C89 compilers. On 32-bit and up
+ machines. Most of libcurl assumes more or less POSIX compliance but that is
+ not a requirement.
+
+ We write libcurl to build and work with lots of third party tools, and we
+ want it to remain functional and buildable with these and later versions
+ (older versions may still work but is not what we work hard to maintain):
+
+## Dependencies
+
+ We aim to support these or later versions.
+
+ - OpenSSL      0.9.7
+ - GnuTLS       3.1.10
+ - zlib         1.1.4
+ - libssh2      1.0
+ - c-ares       1.16.0
+ - libidn2      2.0.0
+ - wolfSSL      2.0.0
+ - openldap     2.0
+ - MIT Kerberos 1.2.4
+ - GSKit        V5R3M0
+ - NSS          3.14.x
+ - Heimdal      ?
+ - nghttp2      1.12.0
+ - WinSock      2.2 (on Windows 95+ and Windows CE .NET 4.1+)
+
+## Operating Systems
+
+ On systems where configure runs, we aim at working on them all - if they have
+ a suitable C compiler. On systems that do not run configure, we strive to
+ keep curl running correctly on:
+
+ - Windows      98
+ - AS/400       V5R3M0
+ - Symbian      9.1
+ - Windows CE   ?
+ - TPF          ?
+
+## Build tools
+
+ When writing code (mostly for generating stuff included in release tarballs)
+ we use a few "build tools" and we make sure that we remain functional with
+ these versions:
+
+ - GNU Libtool  1.4.2
+ - GNU Autoconf 2.57
+ - GNU Automake 1.7
+ - GNU M4       1.4
+ - perl         5.004
+ - roffit       0.5
+ - groff        ? (any version that supports `groff -Tps -man [in] [out]`)
diff --git a/curl/docs/KNOWN_BUGS b/curl/docs/KNOWN_BUGS
new file mode 100644
index 0000000..983b814
--- /dev/null
+++ b/curl/docs/KNOWN_BUGS
@@ -0,0 +1,1142 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+                                  Known Bugs
+
+These are problems and bugs known to exist at the time of this release. Feel
+free to join in and help us correct one or more of these. Also be sure to
+check the changelog of the current development status, as one or more of these
+problems may have been fixed or changed somewhat since this was written.
+
+ 1. HTTP
+ 1.2 Multiple methods in a single WWW-Authenticate: header
+ 1.3 STARTTRANSFER time is wrong for HTTP POSTs
+ 1.4 multipart formposts file name encoding
+ 1.5 Expect-100 meets 417
+ 1.6 Unnecessary close when 401 received waiting for 100
+ 1.7 Deflate error after all content was received
+ 1.8 DoH is not used for all name resolves when enabled
+ 1.11 CURLOPT_SEEKFUNCTION not called with CURLFORM_STREAM
+
+ 2. TLS
+ 2.1 CURLINFO_SSL_VERIFYRESULT has limited support
+ 2.2 DER in keychain
+ 2.3 Unable to use PKCS12 certificate with Secure Transport
+ 2.4 Secure Transport will not import PKCS#12 client certificates without a password
+ 2.5 Client cert handling with Issuer DN differs between backends
+ 2.6 CURL_GLOBAL_SSL
+ 2.7 Client cert (MTLS) issues with Schannel
+ 2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
+ 2.9 TLS session cache does not work with TFO
+ 2.10 Store TLS context per transfer instead of per connection
+ 2.11 Schannel TLS 1.2 handshake bug in old Windows versions
+ 2.12 FTPS with Schannel times out file list operation
+ 2.14 Secure Transport disabling hostname validation also disables SNI
+ 2.15 Renegotiate from server may cause hang for OpenSSL backend
+
+ 3. Email protocols
+ 3.1 IMAP SEARCH ALL truncated response
+ 3.2 No disconnect command
+ 3.3 POP3 expects "CRLF.CRLF" eob for some single-line responses
+ 3.4 AUTH PLAIN for SMTP is not working on all servers
+
+ 4. Command line
+ 4.1 -J and -O with %-encoded file names
+ 4.2 -J with -C - fails
+ 4.3 --retry and transfer timeouts
+
+ 5. Build and portability issues
+ 5.1 OS400 port requires deprecated IBM library
+ 5.2 curl-config --libs contains private details
+ 5.3 curl compiled on OSX 10.13 failed to run on OSX 10.10
+ 5.4 Build with statically built dependency
+ 5.5 cannot handle Unicode arguments in non-Unicode builds on Windows
+ 5.6 make distclean loops forever
+ 5.7 Visual Studio project gaps
+ 5.8 configure finding libs in wrong directory
+ 5.9 Utilize Requires.private directives in libcurl.pc
+ 5.10 curl hangs on SMB upload over stdin
+ 5.11 configure --with-gssapi with Heimdal is ignored on macOS
+ 5.12 flaky Windows CI builds
+
+ 6. Authentication
+ 6.1 NTLM authentication and unicode
+ 6.2 MIT Kerberos for Windows build
+ 6.3 NTLM in system context uses wrong name
+ 6.4 Negotiate and Kerberos V5 need a fake user name
+ 6.5 NTLM does not support password with § character
+ 6.6 libcurl can fail to try alternatives with --proxy-any
+ 6.7 Do not clear digest for single realm
+ 6.8 RTSP authentication breaks without redirect support
+ 6.9 SHA-256 digest not supported in Windows SSPI builds
+ 6.10 curl never completes Negotiate over HTTP
+ 6.11 Negotiate on Windows fails
+ 6.12 cannot use Secure Transport with Crypto Token Kit
+
+ 7. FTP
+ 7.1 FTP without or slow 220 response
+ 7.2 FTP with CONNECT and slow server
+ 7.3 FTP with NOBODY and FAILONERROR
+ 7.4 FTP with ACCT
+ 7.5 ASCII FTP
+ 7.6 FTP with NULs in URL parts
+ 7.7 FTP and empty path parts in the URL
+ 7.8 Premature transfer end but healthy control channel
+ 7.9 Passive transfer tries only one IP address
+ 7.10 FTPS needs session reuse
+ 7.11 FTPS upload data loss with TLS 1.3
+
+ 8. TELNET
+ 8.1 TELNET and time limitations do not work
+ 8.2 Microsoft telnet server
+
+ 9. SFTP and SCP
+ 9.1 SFTP does not do CURLOPT_POSTQUOTE correct
+ 9.2 wolfssh: publickey auth does not work
+ 9.3 Remote recursive folder creation with SFTP
+
+ 10. SOCKS
+ 10.3 FTPS over SOCKS
+ 10.4 active FTP over a SOCKS
+
+ 11. Internals
+ 11.1 Curl leaks .onion hostnames in DNS
+ 11.2 error buffer not set if connection to multiple addresses fails
+ 11.3 Disconnects do not do verbose
+ 11.4 HTTP test server 'connection-monitor' problems
+ 11.5 Connection information when using TCP Fast Open
+ 11.7 signal-based resolver timeouts
+ 11.8 DoH leaks memory after followlocation
+ 11.9 DoH does not inherit all transfer options
+ 11.10 Blocking socket operations in non-blocking API
+ 11.11 A shared connection cache is not thread-safe
+ 11.12 'no_proxy' string-matches IPv6 numerical addresses
+ 11.13 wakeup socket disconnect causes havoc
+ 11.14 Multi perform hangs waiting for threaded resolver
+ 11.15 CURLOPT_OPENSOCKETPAIRFUNCTION is missing
+ 11.16 libcurl uses renames instead of locking for atomic operations
+
+ 12. LDAP
+ 12.1 OpenLDAP hangs after returning results
+ 12.2 LDAP on Windows does authentication wrong?
+ 12.3 LDAP on Windows does not work
+ 12.4 LDAPS with NSS is slow
+
+ 13. TCP/IP
+ 13.1 --interface for ipv6 binds to unusable IP address
+ 13.2 Trying local ports fails on Windows
+
+ 14. DICT
+ 14.1 DICT responses show the underlying protocol
+
+ 15. CMake
+ 15.1 use correct SONAME
+ 15.2 support build with GnuTLS
+ 15.3 unusable tool_hugehelp.c with MinGW
+ 15.4 build docs/curl.1
+ 15.5 build on Linux links libcurl to libdl
+ 15.6 uses -lpthread instead of Threads::Threads
+ 15.7 generated .pc file contains strange entries
+ 15.8 libcurl.pc uses absolute library paths
+ 15.9 cert paths autodetected when cross-compiling
+ 15.10 libpsl is not supported
+ 15.11 ExternalProject_Add does not set CURL_CA_PATH
+ 15.12 cannot enable LDAPS on Windows
+ 15.13 CMake build with MIT Kerberos does not work
+
+ 16. Applications
+
+ 17. HTTP/2
+ 17.1 Excessive HTTP/2 packets with TCP_NODELAY
+ 17.2 HTTP/2 frames while in the connection pool kill reuse
+ 17.3 ENHANCE_YOUR_CALM causes infinite retries
+ 17.4 Connection failures with parallel HTTP/2
+ 17.5 HTTP/2 connections through HTTPS proxy frequently stall
+
+ 18. HTTP/3
+ 18.1 If the HTTP/3 server closes connection during upload curl hangs
+ 18.2 Transfer closed with n bytes remaining to read
+ 18.3 configure --with-ca-fallback is not supported by h3
+ 18.4 timeout when reusing a http3 connection
+ 18.9 connection migration does not work
+
+==============================================================================
+
+1. HTTP
+
+1.2 Multiple methods in a single WWW-Authenticate: header
+
+ The HTTP responses headers WWW-Authenticate: can provide information about
+ multiple authentication methods as multiple headers or as several methods
+ within a single header. The latter way, several methods in the same physical
+ line, is not supported by libcurl's parser. (For no good reason.)
+
+1.3 STARTTRANSFER time is wrong for HTTP POSTs
+
+ Wrong STARTTRANSFER timer accounting for POST requests Timer works fine with
+ GET requests, but while using POST the time for CURLINFO_STARTTRANSFER_TIME
+ is wrong. While using POST CURLINFO_STARTTRANSFER_TIME minus
+ CURLINFO_PRETRANSFER_TIME is near to zero every time.
+
+ https://github.com/curl/curl/issues/218
+ https://curl.se/bug/view.cgi?id=1213
+
+1.4 multipart formposts file name encoding
+
+ When creating multipart formposts. The file name part can be encoded with
+ something beyond ascii but currently libcurl will only pass in the verbatim
+ string the app provides. There are several browsers that already do this
+ encoding. The key seems to be the updated draft to RFC2231:
+ https://datatracker.ietf.org/doc/html/draft-reschke-rfc2231-in-http-02
+
+1.5 Expect-100 meets 417
+
+ If an upload using Expect: 100-continue receives an HTTP 417 response, it
+ ought to be automatically resent without the Expect:. A workaround is for
+ the client application to redo the transfer after disabling Expect:.
+ https://curl.se/mail/archive-2008-02/0043.html
+
+1.6 Unnecessary close when 401 received waiting for 100
+
+ libcurl closes the connection if an HTTP 401 reply is received while it is
+ waiting for the 100-continue response.
+ https://curl.se/mail/lib-2008-08/0462.html
+
+1.7 Deflate error after all content was received
+
+ There's a situation where we can get an error in an HTTP response that is
+ compressed, when that error is detected after all the actual body contents
+ have been received and delivered to the application. This is tricky, but is
+ ultimately a broken server.
+
+ See https://github.com/curl/curl/issues/2719
+
+1.8 DoH is not used for all name resolves when enabled
+
+ Even if DoH is specified to be used, there are some name resolves that are
+ done without it. This should be fixed. When the internal function
+ `Curl_resolver_wait_resolv()` is called, it does not use DoH to complete the
+ resolve as it otherwise should.
+
+ See https://github.com/curl/curl/pull/3857 and
+ https://github.com/curl/curl/pull/3850
+
+1.11 CURLOPT_SEEKFUNCTION not called with CURLFORM_STREAM
+
+ When using libcurl to POST form data using a FILE* with the CURLFORM_STREAM
+ option of curl_formadd(). I notice that if the connection drops at just the
+ right time, the POST is reattempted without the data from the file. It seems
+ like the file stream position is not getting reset to the beginning of the
+ file. I found the CURLOPT_SEEKFUNCTION option and set that with a function
+ that performs an fseek() on the FILE*. However, setting that did not seem to
+ fix the issue or even get called. See https://github.com/curl/curl/issues/768
+
+
+2. TLS
+
+2.1 CURLINFO_SSL_VERIFYRESULT has limited support
+
+ CURLINFO_SSL_VERIFYRESULT is only implemented for the OpenSSL, NSS and
+ GnuTLS backends, so relying on this information in a generic app is flaky.
+
+2.2 DER in keychain
+
+ Curl does not recognize certificates in DER format in keychain, but it works
+ with PEM.  https://curl.se/bug/view.cgi?id=1065
+
+2.3 Unable to use PKCS12 certificate with Secure Transport
+
+ See https://github.com/curl/curl/issues/5403
+
+2.4 Secure Transport will not import PKCS#12 client certificates without a password
+
+ libcurl calls SecPKCS12Import with the PKCS#12 client certificate, but that
+ function rejects certificates that do not have a password.
+ https://github.com/curl/curl/issues/1308
+
+2.5 Client cert handling with Issuer DN differs between backends
+
+ When the specified client certificate does not match any of the
+ server-specified DNs, the OpenSSL and GnuTLS backends behave differently.
+ The github discussion may contain a solution.
+
+ See https://github.com/curl/curl/issues/1411
+
+2.6 CURL_GLOBAL_SSL
+
+ Since libcurl 7.57.0, the flag CURL_GLOBAL_SSL is a no-op. The change was
+ merged in https://github.com/curl/curl/commit/d661b0afb571a
+
+ It was removed since it was
+
+ A) never clear for applications on how to deal with init in the light of
+    different SSL backends (the option was added back in the days when life
+    was simpler)
+
+ B) multissl introduced dynamic switching between SSL backends which
+    emphasized (A) even more
+
+ C) libcurl uses some TLS backend functionality even for non-TLS functions (to
+    get "good" random) so applications trying to avoid the init for
+    performance reasons would do wrong anyway
+
+ D) not documented carefully so all this mostly just happened to work
+    for some users
+
+ However, in spite of the problems with the feature, there were some users who
+ apparently depended on this feature and who now claim libcurl is broken for
+ them. The fix for this situation is not obvious as a downright revert of the
+ patch is totally ruled out due to those reasons above.
+
+ https://github.com/curl/curl/issues/2276
+
+2.7 Client cert (MTLS) issues with Schannel
+
+ See https://github.com/curl/curl/issues/3145
+
+2.8 Schannel disable CURLOPT_SSL_VERIFYPEER and verify hostname
+
+ This seems to be a limitation in the underlying Schannel API.
+
+ https://github.com/curl/curl/issues/3284
+
+2.9 TLS session cache does not work with TFO
+
+ See https://github.com/curl/curl/issues/4301
+
+2.10 Store TLS context per transfer instead of per connection
+
+ The GnuTLS `backend->cred` and the OpenSSL `backend->ctx` data and their
+ proxy versions (and possibly other TLS backends), could be better moved to be
+ stored in the Curl_easy handle instead of in per connection so that a single
+ transfer that makes multiple connections can reuse the context and reduce
+ memory consumption.
+
+ https://github.com/curl/curl/issues/5102
+
+2.11 Schannel TLS 1.2 handshake bug in old Windows versions
+
+ In old versions of Windows such as 7 and 8.1 the Schannel TLS 1.2 handshake
+ implementation likely has a bug that can rarely cause the key exchange to
+ fail, resulting in error SEC_E_BUFFER_TOO_SMALL or SEC_E_MESSAGE_ALTERED.
+
+ https://github.com/curl/curl/issues/5488
+
+2.12 FTPS with Schannel times out file list operation
+
+ "Instead of the command completing, it just sits there until the timeout
+ expires." - the same command line seems to work with other TLS backends and
+ other operating systems. See https://github.com/curl/curl/issues/5284.
+
+2.14 Secure Transport disabling hostname validation also disables SNI
+
+ SNI is the hostname that is sent by the TLS library to the server as part of
+ the TLS handshake. Secure Transport does not send SNI when hostname validation
+ is disabled. Servers that host multiple websites may not know which
+ certificate to serve without SNI or which backend server to connect to. The
+ server may serve the certificate of a default server or abort.
+
+ If a server aborts a handshake then curl shows error "SSL peer handshake
+ failed, the server most likely requires a client certificate to connect".
+ In this case the error may also have been caused by lack of SNI.
+
+ https://github.com/curl/curl/issues/6347
+
+2.15 Renegotiate from server may cause hang for OpenSSL backend
+
+ A race condition has been observed when, immediately after the initial
+ handshake, curl has sent an HTTP request to the server and at the same time
+ the server has sent a TLS hello request (renegotiate) to curl. Both are
+ waiting for the other to respond. OpenSSL is supposed to send a handshake
+ response but does not.
+
+ https://github.com/curl/curl/issues/6785
+ https://github.com/openssl/openssl/issues/14722
+
+3. Email protocols
+
+3.1 IMAP SEARCH ALL truncated response
+
+ IMAP "SEARCH ALL" truncates output on large boxes. "A quick search of the
+ code reveals that pingpong.c contains some truncation code, at line 408, when
+ it deems the server response to be too large truncating it to 40 characters"
+ https://curl.se/bug/view.cgi?id=1366
+
+3.2 No disconnect command
+
+ The disconnect commands (LOGOUT and QUIT) may not be sent by IMAP, POP3 and
+ SMTP if a failure occurs during the authentication phase of a connection.
+
+3.3 POP3 expects "CRLF.CRLF" eob for some single-line responses
+
+ You have to tell libcurl not to expect a body, when dealing with one line
+ response commands. Please see the POP3 examples and test cases which show
+ this for the NOOP and DELE commands. https://curl.se/bug/?i=740
+
+3.4 AUTH PLAIN for SMTP is not working on all servers
+
+ Specifying "--login-options AUTH=PLAIN" on the command line does not seem to
+ work correctly.
+
+ See https://github.com/curl/curl/issues/4080
+
+4. Command line
+
+4.1 -J and -O with %-encoded file names
+
+ -J/--remote-header-name does not decode %-encoded file names. RFC6266 details
+ how it should be done. The can of worm is basically that we have no charset
+ handling in curl and ascii >=128 is a challenge for us. Not to mention that
+ decoding also means that we need to check for nastiness that is attempted,
+ like "../" sequences and the like. Probably everything to the left of any
+ embedded slashes should be cut off.
+ https://curl.se/bug/view.cgi?id=1294
+
+ -O also does not decode %-encoded names, and while it has even less
+ information about the charset involved the process is similar to the -J case.
+
+ Note that we will not add decoding to -O without the user asking for it with
+ some other means as well, since -O has always been documented to use the name
+ exactly as specified in the URL.
+
+4.2 -J with -C - fails
+
+ When using -J (with -O), automatically resumed downloading together with "-C
+ -" fails. Without -J the same command line works. This happens because the
+ resume logic is worked out before the target file name (and thus its
+ pre-transfer size) has been figured out.
+ https://curl.se/bug/view.cgi?id=1169
+
+4.3 --retry and transfer timeouts
+
+ If using --retry and the transfer timeouts (possibly due to using -m or
+ -y/-Y) the next attempt does not resume the transfer properly from what was
+ downloaded in the previous attempt but will truncate and restart at the
+ original position where it was at before the previous failed attempt. See
+ https://curl.se/mail/lib-2008-01/0080.html and Mandriva bug report
+ https://qa.mandriva.com/show_bug.cgi?id=22565
+
+5. Build and portability issues
+
+5.1 OS400 port requires deprecated IBM library
+
+ curl for OS400 requires QADRT to build, which provides ASCII wrappers for
+ libc/POSIX functions in the ILE, but IBM no longer supports or even offers
+ this library to download.
+
+ See https://github.com/curl/curl/issues/5176
+
+5.2 curl-config --libs contains private details
+
+ "curl-config --libs" will include details set in LDFLAGS when configure is
+ run that might be needed only for building libcurl. Further, curl-config
+ --cflags suffers from the same effects with CFLAGS/CPPFLAGS.
+
+5.3 curl compiled on OSX 10.13 failed to run on OSX 10.10
+
+ See https://github.com/curl/curl/issues/2905
+
+5.4 Build with statically built dependency
+
+ The build scripts in curl (autotools, cmake and others) are primarily done to
+ work with shared/dynamic third party dependencies. When linking with shared
+ libraries, the dependency "chain" is handled automatically by the library
+ loader - on all modern systems.
+
+ If you instead link with a static library, we need to provide all the
+ dependency libraries already at the link command line.
+
+ Figuring out all the dependency libraries for a given library is hard, as it
+ might also involve figuring out the dependencies of the dependencies and they
+ may vary between platforms and even change between versions.
+
+ When using static dependencies, the build scripts will mostly assume that
+ you, the user, will provide all the necessary additional dependency libraries
+ as additional arguments in the build. With configure, by setting LIBS/LDFLAGS
+ on the command line.
+
+ We welcome help to improve curl's ability to link with static libraries, but
+ it is likely a task that we can never fully support.
+
+5.5 cannot handle Unicode arguments in non-Unicode builds on Windows
+
+ If a URL or filename cannot be encoded using the user's current codepage then
+ it can only be encoded properly in the Unicode character set. Windows uses
+ UTF-16 encoding for Unicode and stores it in wide characters, however curl
+ and libcurl are not equipped for that at the moment except when built with
+ _UNICODE and UNICODE defined. And, except for Cygwin, Windows cannot use UTF-8
+ as a locale.
+
+  https://curl.se/bug/?i=345
+  https://curl.se/bug/?i=731
+  https://curl.se/bug/?i=3747
+
+5.6 make distclean loops forever
+
+ Due to an issue (probably) in automake, "make distclean" can end up in a
+ never-ending loop.
+
+ See https://github.com/curl/curl/issues/7716
+
+5.7 Visual Studio project gaps
+
+ The Visual Studio projects lack some features that the autoconf and nmake
+ builds offer, such as the following:
+
+  - support for zlib and nghttp2
+  - use of static runtime libraries
+  - add the test suite components
+
+ In addition to this the following could be implemented:
+
+  - support for other development IDEs
+  - add PATH environment variables for third-party DLLs
+
+5.8 configure finding libs in wrong directory
+
+ When the configure script checks for third-party libraries, it adds those
+ directories to the LDFLAGS variable and then tries linking to see if it
+ works. When successful, the found directory is kept in the LDFLAGS variable
+ when the script continues to execute and do more tests and possibly check for
+ more libraries.
+
+ This can make subsequent checks for libraries wrongly detect another
+ installation in a directory that was previously added to LDFLAGS by another
+ library check.
+
+ A possibly better way to do these checks would be to keep the pristine LDFLAGS
+ even after successful checks and instead add those verified paths to a
+ separate variable that only after all library checks have been performed gets
+ appended to LDFLAGS.
+
+5.9 Utilize Requires.private directives in libcurl.pc
+
+ https://github.com/curl/curl/issues/864
+
+5.10 curl hangs on SMB upload over stdin
+
+ See https://github.com/curl/curl/issues/7896
+
+5.11 configure --with-gssapi with Heimdal is ignored on macOS
+
+ ... unless you also pass --with-gssapi-libs
+
+ https://github.com/curl/curl/issues/3841
+
+5.12 flaky Windows CI builds
+
+ We run many CI builds for each commit and PR on github, and especially a
+ number of the Windows builds are flaky. This means that we rarely get all CI
+ builds go green and complete without errors. This is unfortunate as it makes
+ us sometimes miss actual build problems and it is surprising to newcomers to
+ the project who (rightfully) do not expect this.
+
+ See https://github.com/curl/curl/issues/6972
+
+6. Authentication
+
+6.1 NTLM authentication and unicode
+
+ NTLM authentication involving unicode user name or password only works
+ properly if built with UNICODE defined together with the Schannel
+ backend. The original problem was mentioned in:
+ https://curl.se/mail/lib-2009-10/0024.html
+ https://curl.se/bug/view.cgi?id=896
+
+ The Schannel version verified to work as mentioned in
+ https://curl.se/mail/lib-2012-07/0073.html
+
+6.2 MIT Kerberos for Windows build
+
+ libcurl fails to build with MIT Kerberos for Windows (KfW) due to KfW's
+ library header files exporting symbols/macros that should be kept private to
+ the KfW library. See ticket #5601 at https://krbdev.mit.edu/rt/
+
+6.3 NTLM in system context uses wrong name
+
+ NTLM authentication using SSPI (on Windows) when (lib)curl is running in
+ "system context" will make it use wrong(?) user name - at least when compared
+ to what winhttp does. See https://curl.se/bug/view.cgi?id=535
+
+6.4 Negotiate and Kerberos V5 need a fake user name
+
+ In order to get Negotiate (SPNEGO) authentication to work in HTTP or Kerberos
+ V5 in the email protocols, you need to  provide a (fake) user name (this
+ concerns both curl and the lib) because the code wrongly only considers
+ authentication if there's a user name provided by setting
+ conn->bits.user_passwd in url.c  https://curl.se/bug/view.cgi?id=440 How?
+ https://curl.se/mail/lib-2004-08/0182.html A possible solution is to
+ either modify this variable to be set or introduce a variable such as
+ new conn->bits.want_authentication which is set when any of the authentication
+ options are set.
+
+6.5 NTLM does not support password with § character
+
+ https://github.com/curl/curl/issues/2120
+
+6.6 libcurl can fail to try alternatives with --proxy-any
+
+ When connecting via a proxy using --proxy-any, a failure to establish an
+ authentication will cause libcurl to abort trying other options if the
+ failed method has a higher preference than the alternatives. As an example,
+ --proxy-any against a proxy which advertise Negotiate and NTLM, but which
+ fails to set up Kerberos authentication will not proceed to try authentication
+ using NTLM.
+
+ https://github.com/curl/curl/issues/876
+
+6.7 Do not clear digest for single realm
+
+ https://github.com/curl/curl/issues/3267
+
+6.8 RTSP authentication breaks without redirect support
+
+ RTSP authentication broke in 7.66.0. A work-around is to enable RTSP in
+ CURLOPT_REDIR_PROTOCOLS. Authentication should however not be considered an
+ actual redirect so a "proper" fix needs to be different and not require users
+ to allow redirects to RTSP to work.
+
+ See https://github.com/curl/curl/pull/4750
+
+6.9 SHA-256 digest not supported in Windows SSPI builds
+
+ Windows builds of curl that have SSPI enabled use the native Windows API calls
+ to create authentication strings. The call to InitializeSecurityContext fails
+ with SEC_E_QOP_NOT_SUPPORTED which causes curl to fail with CURLE_AUTH_ERROR.
+
+ Microsoft does not document supported digest algorithms and that SEC_E error
+ code is not a documented error for InitializeSecurityContext (digest).
+
+ https://github.com/curl/curl/issues/6302
+
+6.10 curl never completes Negotiate over HTTP
+
+ Apparently it is not working correctly...?
+
+ See https://github.com/curl/curl/issues/5235
+
+6.11 Negotiate on Windows fails
+
+ When using --negotiate (or NTLM) with curl on Windows, SSL/TSL handshake
+ fails despite having a valid kerberos ticket cached. Works without any issue
+ in Unix/Linux.
+
+ https://github.com/curl/curl/issues/5881
+
+6.12 cannot use Secure Transport with Crypto Token Kit
+
+ https://github.com/curl/curl/issues/7048
+
+7. FTP
+
+7.1 FTP without or slow 220 response
+
+ If a connection is made to an FTP server but the server then just never sends
+ the 220 response or otherwise is dead slow, libcurl will not acknowledge the
+ connection timeout during that phase but only the "real" timeout - which may
+ surprise users as it is probably considered to be the connect phase to most
+ people. Brought up (and is being misunderstood) in:
+ https://curl.se/bug/view.cgi?id=856
+
+7.2 FTP with CONNECT and slow server
+
+ When doing FTP over a socks proxy or CONNECT through HTTP proxy and the multi
+ interface is used, libcurl will fail if the (passive) TCP connection for the
+ data transfer is not more or less instant as the code does not properly wait
+ for the connect to be confirmed. See test case 564 for a first shot at a test
+ case.
+
+7.3 FTP with NOBODY and FAILONERROR
+
+ It seems sensible to be able to use CURLOPT_NOBODY and CURLOPT_FAILONERROR
+ with FTP to detect if a file exists or not, but it is not working:
+ https://curl.se/mail/lib-2008-07/0295.html
+
+7.4 FTP with ACCT
+
+ When doing an operation over FTP that requires the ACCT command (but not when
+ logging in), the operation will fail since libcurl does not detect this and
+ thus fails to issue the correct command:
+ https://curl.se/bug/view.cgi?id=635
+
+7.5 ASCII FTP
+
+ FTP ASCII transfers do not follow RFC959. They do not convert the data
+ accordingly (not for sending nor for receiving). RFC 959 section 3.1.1.1
+ clearly describes how this should be done:
+
+    The sender converts the data from an internal character representation to
+    the standard 8-bit NVT-ASCII representation (see the Telnet
+    specification). The receiver will convert the data from the standard
+    form to his own internal form.
+
+ Since 7.15.4 at least line endings are converted.
+
+7.6 FTP with NULs in URL parts
+
+ FTP URLs passed to curl may contain NUL (0x00) in the RFC 1738 ,
+ , and  components, encoded as "%00". The problem is that
+ curl_unescape does not detect this, but instead returns a shortened C string.
+ From a strict FTP protocol standpoint, NUL is a valid character within RFC
+ 959 , so the way to handle this correctly in curl would be to use a
+ data structure other than a plain C string, one that can handle embedded NUL
+ characters. From a practical standpoint, most FTP servers would not
+ meaningfully support NUL characters within RFC 959 , anyway (e.g.,
+ Unix pathnames may not contain NUL).
+
+7.7 FTP and empty path parts in the URL
+
+ libcurl ignores empty path parts in FTP URLs, whereas RFC1738 states that
+ such parts should be sent to the server as 'CWD ' (without an argument). The
+ only exception to this rule, is that we knowingly break this if the empty
+ part is first in the path, as then we use the double slashes to indicate that
+ the user wants to reach the root dir (this exception SHALL remain even when
+ this bug is fixed).
+
+7.8 Premature transfer end but healthy control channel
+
+ When 'multi_done' is called before the transfer has been completed the normal
+ way, it is considered a "premature" transfer end. In this situation, libcurl
+ closes the connection assuming it does not know the state of the connection so
+ it cannot be reused for subsequent requests.
+
+ With FTP however, this is not necessarily true but there are a bunch of
+ situations (listed in the ftp_done code) where it *could* keep the connection
+ alive even in this situation - but the current code does not. Fixing this would
+ allow libcurl to reuse FTP connections better.
+
+7.9 Passive transfer tries only one IP address
+
+ When doing FTP operations through a proxy at localhost, the reported spotted
+ that curl only tried to connect once to the proxy, while it had multiple
+ addresses and a failed connect on one address should make it try the next.
+
+ After switching to passive mode (EPSV), curl should try all IP addresses for
+ "localhost". Currently it tries ::1, but it should also try 127.0.0.1.
+
+ See https://github.com/curl/curl/issues/1508
+
+7.10 FTPS needs session reuse
+
+ When the control connection is reused for a subsequent transfer, some FTPS
+ servers complain about "missing session reuse" for the data channel for the
+ second transfer.
+
+ https://github.com/curl/curl/issues/4654
+
+7.11 FTPS upload data loss with TLS 1.3
+
+ During FTPS upload curl does not attempt to read TLS handshake messages sent
+ after the initial handshake. OpenSSL servers running TLS 1.3 may send such a
+ message. When curl closes the upload connection if unread data has been
+ received (such as a TLS handshake message) then the TCP protocol sends an
+ RST to the server, which may cause the server to discard or truncate the
+ upload if it has not read all sent data yet, and then return an error to curl
+ on the control channel connection.
+
+ Since 7.78.0 this is mostly fixed. curl will do a single read before closing
+ TLS connections (which causes the TLS library to read handshake messages),
+ however there is still possibility of an RST if more messages need to be read
+ or a message arrives after the read but before close (network race condition).
+
+ https://github.com/curl/curl/issues/6149
+
+8. TELNET
+
+8.1 TELNET and time limitations do not work
+
+ When using telnet, the time limitation options do not work.
+ https://curl.se/bug/view.cgi?id=846
+
+8.2 Microsoft telnet server
+
+ There seems to be a problem when connecting to the Microsoft telnet server.
+ https://curl.se/bug/view.cgi?id=649
+
+
+9. SFTP and SCP
+
+9.1 SFTP does not do CURLOPT_POSTQUOTE correct
+
+ When libcurl sends CURLOPT_POSTQUOTE commands when connected to a SFTP server
+ using the multi interface, the commands are not being sent correctly and
+ instead the connection is "cancelled" (the operation is considered done)
+ prematurely. There is a half-baked (busy-looping) patch provided in the bug
+ report but it cannot be accepted as-is. See
+ https://curl.se/bug/view.cgi?id=748
+
+9.2 wolfssh: publickey auth does not work
+
+ When building curl to use the wolfSSH backend for SFTP, the publickey
+ authentication does not work. This is simply functionality not written for curl
+ yet, the necessary API for make this work is provided by wolfSSH.
+
+ See https://github.com/curl/curl/issues/4820
+
+9.3 Remote recursive folder creation with SFTP
+
+ On this servers, the curl fails to create directories on the remote server
+ even when the CURLOPT_FTP_CREATE_MISSING_DIRS option is set.
+
+ See https://github.com/curl/curl/issues/5204
+
+
+10. SOCKS
+
+10.3 FTPS over SOCKS
+
+ libcurl does not support FTPS over a SOCKS proxy.
+
+10.4 active FTP over a SOCKS
+
+ libcurl does not support active FTP over a SOCKS proxy
+
+
+11. Internals
+
+11.1 Curl leaks .onion hostnames in DNS
+
+ Curl sends DNS requests for hostnames with a .onion TLD. This leaks
+ information about what the user is attempting to access, and violates this
+ requirement of RFC7686: https://datatracker.ietf.org/doc/html/rfc7686
+
+ Issue: https://github.com/curl/curl/issues/543
+
+11.2 error buffer not set if connection to multiple addresses fails
+
+ If you ask libcurl to resolve a hostname like example.com to IPv6 addresses
+ only. But you only have IPv4 connectivity. libcurl will correctly fail with
+ CURLE_COULDNT_CONNECT. But the error buffer set by CURLOPT_ERRORBUFFER
+ remains empty. Issue: https://github.com/curl/curl/issues/544
+
+11.3 Disconnects do not do verbose
+
+ Due to how libcurl keeps connections alive in the "connection pool" after use
+ to potentially transcend the life-time of the initial easy handle that was
+ used to drive the transfer over that connection, it uses a *separate* and
+ internal easy handle when it shuts down the connection. That separate
+ connection might not have the same settings as the original easy handle, and
+ in particular it is often note-worthy that it does not have the same VERBOSE
+ and debug callbacks setup so that an application will not get the protocol
+ data for the disconnect phase of a transfer the same way it got all the other
+ data.
+
+ This is because the original easy handle might have already been freed at that
+ point and the application might not at all be prepared that the callback
+ would get called again long after the handle was freed.
+
+ See for example https://github.com/curl/curl/issues/6995
+
+11.4 HTTP test server 'connection-monitor' problems
+
+ The 'connection-monitor' feature of the sws HTTP test server does not work
+ properly if some tests are run in unexpected order. Like 1509 and then 1525.
+
+ See https://github.com/curl/curl/issues/868
+
+11.5 Connection information when using TCP Fast Open
+
+ CURLINFO_LOCAL_PORT (and possibly a few other) fails when TCP Fast Open is
+ enabled.
+
+ See https://github.com/curl/curl/issues/1332 and
+ https://github.com/curl/curl/issues/4296
+
+11.7 signal-based resolver timeouts
+
+ libcurl built without an asynchronous resolver library uses alarm() to time
+ out DNS lookups. When a timeout occurs, this causes libcurl to jump from the
+ signal handler back into the library with a sigsetjmp, which effectively
+ causes libcurl to continue running within the signal handler. This is
+ non-portable and could cause problems on some platforms. A discussion on the
+ problem is available at https://curl.se/mail/lib-2008-09/0197.html
+
+ Also, alarm() provides timeout resolution only to the nearest second. alarm
+ ought to be replaced by setitimer on systems that support it.
+
+11.8 DoH leaks memory after followlocation
+
+ https://github.com/curl/curl/issues/4592
+
+11.9 DoH does not inherit all transfer options
+
+ Some options are not inherited because they are not relevant for the DoH SSL
+ connections, or inheriting the option may result in unexpected behavior. For
+ example the user's debug function callback is not inherited because it would
+ be unexpected for internal handles (ie DoH handles) to be passed to that
+ callback.
+
+ If an option is not inherited then it is not possible to set it separately for
+ DoH without a DoH-specific option. For example: CURLOPT_DOH_SSL_VERIFYHOST,
+ CURLOPT_DOH_SSL_VERIFYPEER and CURLOPT_DOH_SSL_VERIFYSTATUS.
+
+ See https://github.com/curl/curl/issues/6605
+
+11.10 Blocking socket operations in non-blocking API
+
+ The list of blocking socket operations is in TODO section "More non-blocking".
+
+11.11 A shared connection cache is not thread-safe
+
+ The share interface offers CURL_LOCK_DATA_CONNECT to have multiple easy
+ handle share a connection cache, but due to how connections are used they are
+ still not thread-safe when used shared.
+
+ See https://github.com/curl/curl/issues/4915 and lib1541.c
+
+11.12 'no_proxy' string-matches IPv6 numerical addresses
+
+ This has the downside that "::1" for example does not match "::0:1" even
+ though they are in fact the same address.
+
+ See https://github.com/curl/curl/issues/5745
+
+11.13 wakeup socket disconnect causes havoc
+
+ waking an iPad breaks the wakeup socket pair, triggering a POLLIN event and
+ resulting in SOCKERRNO being set to ENOTCONN.
+
+ This condition, and other possible error conditions on the wakeup socket, are
+ not handled, so the condition remains on the FD and curl_multi_poll will
+ never block again.
+
+ See https://github.com/curl/curl/issues/6132 and
+ https://github.com/curl/curl/pull/6133
+
+11.14 Multi perform hangs waiting for threaded resolver
+
+ If a threaded resolver takes a long time to complete, libcurl can be blocked
+ waiting for it for a longer time than expected - and longer than the set
+ timeouts.
+
+ See https://github.com/curl/curl/issues/2975 and
+ https://github.com/curl/curl/issues/4852
+
+11.15 CURLOPT_OPENSOCKETPAIRFUNCTION is missing
+
+ When libcurl creates sockets with socketpair(), those are not "exposed" in
+ CURLOPT_OPENSOCKETFUNCTION and therefore might surprise and be unknown to
+ applications that expect and want all sockets known beforehand. One way to
+ address this issue is to introduce a CURLOPT_OPENSOCKETPAIRFUNCTION callback.
+
+ https://github.com/curl/curl/issues/5747
+
+11.16 libcurl uses renames instead of locking for atomic operations
+
+ For saving cookies, alt-svc and hsts files. This is bad when for example the
+ file is stored in a directory where the application has no write permission
+ but it has permission for the file.
+
+ https://github.com/curl/curl/issues/6882
+ https://github.com/curl/curl/pull/6884
+
+12. LDAP
+
+12.1 OpenLDAP hangs after returning results
+
+ By configuration defaults, openldap automatically chase referrals on
+ secondary socket descriptors. The OpenLDAP backend is asynchronous and thus
+ should monitor all socket descriptors involved. Currently, these secondary
+ descriptors are not monitored, causing openldap library to never receive
+ data from them.
+
+ As a temporary workaround, disable referrals chasing by configuration.
+
+ The fix is not easy: proper automatic referrals chasing requires a
+ synchronous bind callback and monitoring an arbitrary number of socket
+ descriptors for a single easy handle (currently limited to 5).
+
+ Generic LDAP is synchronous: OK.
+
+ See https://github.com/curl/curl/issues/622 and
+     https://curl.se/mail/lib-2016-01/0101.html
+
+12.2 LDAP on Windows does authentication wrong?
+
+ https://github.com/curl/curl/issues/3116
+
+12.3 LDAP on Windows does not work
+
+ A simple curl command line getting "ldap://ldap.forumsys.com" returns an
+ error that says "no memory" !
+
+ https://github.com/curl/curl/issues/4261
+
+12.4 LDAPS with NSS is slow
+
+ See https://github.com/curl/curl/issues/5874
+
+13. TCP/IP
+
+13.1 --interface for ipv6 binds to unusable IP address
+
+ Since IPv6 provides a lot of addresses with different scope, binding to an
+ IPv6 address needs to take the proper care so that it does not bind to a
+ locally scoped address as that is bound to fail.
+
+ https://github.com/curl/curl/issues/686
+
+13.2 Trying local ports fails on Windows
+
+ This makes '--local-port [range]' to not work since curl can't properly
+ detect if a port is already in use, so it'll try the first port, use that and
+ then subsequently fail anyway if that was actually in use.
+
+ https://github.com/curl/curl/issues/8112
+
+14. DICT
+
+14.1 DICT responses show the underlying protocol
+
+ When getting a DICT response, the protocol parts of DICT are not stripped off
+ from the output.
+
+ https://github.com/curl/curl/issues/1809
+
+15. CMake
+
+15.1 use correct SONAME
+
+ The autotools build sets the SONAME properly according to VERSIONINFO in
+ lib/Makefile.am and so should cmake to make comparable build.
+
+ See https://github.com/curl/curl/pull/5935
+
+15.2 support build with GnuTLS
+
+15.3 unusable tool_hugehelp.c with MinGW
+
+ see https://github.com/curl/curl/issues/3125
+
+15.4 build docs/curl.1
+
+ The cmake build does not create the docs/curl.1 file and therefore must rely on
+ it being there already. This makes the --manual option not work and test
+ cases like 1139 cannot function.
+
+15.5 build on Linux links libcurl to libdl
+
+ ... which it should not need to!
+
+ See https://github.com/curl/curl/issues/6165
+
+15.6 uses -lpthread instead of Threads::Threads
+
+ See https://github.com/curl/curl/issues/6166
+
+15.7 generated .pc file contains strange entries
+
+ The Libs.private field of the generated .pc file contains -lgcc -lgcc_s -lc
+ -lgcc -lgcc_s
+
+ See https://github.com/curl/curl/issues/6167
+
+15.8 libcurl.pc uses absolute library paths
+
+ The libcurl.pc file generated by cmake contains things like Libs.private:
+ /usr/lib64/libssl.so /usr/lib64/libcrypto.so /usr/lib64/libz.so. The
+ autotools equivalent would say Libs.private: -lssl -lcrypto -lz
+
+ See https://github.com/curl/curl/issues/6169
+
+15.9 cert paths autodetected when cross-compiling
+
+ The autotools build disables the ca_path/ca_bundle detection when
+ cross-compiling. The cmake build keeps doing the detection.
+
+ See https://github.com/curl/curl/issues/6178
+
+15.10 libpsl is not supported
+
+ See https://github.com/curl/curl/issues/6214
+
+15.11 ExternalProject_Add does not set CURL_CA_PATH
+
+ CURL_CA_BUNDLE and CURL_CA_PATH are not set properly when cmake's
+ ExternalProject_Add is used to build curl as a dependency.
+
+ See https://github.com/curl/curl/issues/6313
+
+15.12 cannot enable LDAPS on Windows
+
+ See https://github.com/curl/curl/issues/6284
+
+15.13 CMake build with MIT Kerberos does not work
+
+ Minimum CMake version was bumped in curl 7.71.0 (#5358) Since CMake 3.2
+ try_compile started respecting the CMAKE_EXE_FLAGS. The code dealing with
+ MIT Kerberos detection sets few variables to potentially weird mix of space,
+ and ;-separated flags. It had to blow up at some point. All the CMake checks
+ that involve compilation are doomed from that point, the configured tree
+ cannot be built.
+
+ https://github.com/curl/curl/issues/6904
+
+16. Applications
+
+17. HTTP/2
+
+17.1 Excessive HTTP/2 packets with TCP_NODELAY
+
+ Because of how curl sets TCP_NODELAY by default, HTTP/2 requests are issued
+ using more separate TCP packets than it would otherwise need to use. This
+ means spending more bytes than it has to. Just disabling TCP_NODELAY for
+ HTTP/2 is also not the correct fix because that then makes the outgoing
+ packets to get delayed.
+
+ See https://github.com/curl/curl/issues/6363
+
+17.2 HTTP/2 frames while in the connection pool kill reuse
+
+ If the server sends HTTP/2 frames (like for example an HTTP/2 PING frame) to
+ curl while the connection is held in curl's connection pool, the socket will
+ be found readable when considered for reuse and that makes curl think it is
+ dead and then it will be closed and a new connection gets created instead.
+
+ This is *best* fixed by adding monitoring to connections while they are kept
+ in the pool so that pings can be responded to appropriately.
+
+17.3 ENHANCE_YOUR_CALM causes infinite retries
+
+ Infinite retries with 2 parallel requests on one connection receiving GOAWAY
+ with ENHANCE_YOUR_CALM error code.
+
+ See https://github.com/curl/curl/issues/5119
+
+17.4 Connection failures with parallel HTTP/2
+
+ See https://github.com/curl/curl/issues/5611
+
+17.5 HTTP/2 connections through HTTPS proxy frequently stall
+
+ See https://github.com/curl/curl/issues/6936
+
+18. HTTP/3
+
+18.1 If the HTTP/3 server closes connection during upload curl hangs
+
+ See https://github.com/curl/curl/issues/6606
+
+18.2 Transfer closed with n bytes remaining to read
+
+ HTTP/3 transfers with the Jetty HTTP/3 server seem to not work.
+
+ https://github.com/curl/curl/issues/8523
+
+18.3 configure --with-ca-fallback is not supported by h3
+
+ https://github.com/curl/curl/issues/8696
+
+18.4 timeout when reusing a http3 connection
+
+ HTTP/3 with quiche seems to not work and always timeout a subsequent transfer
+ that reuses an already established connection
+
+ https://github.com/curl/curl/issues/8764
+
+18.9 connection migration does not work
+
+ https://github.com/curl/curl/issues/7695
diff --git a/curl/docs/MAIL-ETIQUETTE b/curl/docs/MAIL-ETIQUETTE
new file mode 100644
index 0000000..8d5f10a
--- /dev/null
+++ b/curl/docs/MAIL-ETIQUETTE
@@ -0,0 +1,285 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+MAIL ETIQUETTE
+
+ 1. About the lists
+  1.1 Mailing Lists
+  1.2 Netiquette
+  1.3 Do Not Mail a Single Individual
+  1.4 Subscription Required
+  1.5 Moderation of new posters
+  1.6 Handling trolls and spam
+  1.7 How to unsubscribe
+  1.8 I posted, now what?
+  1.9 Your emails are public
+
+ 2. Sending mail
+  2.1 Reply or New Mail
+  2.2 Reply to the List
+  2.3 Use a Sensible Subject
+  2.4 Do Not Top-Post
+  2.5 HTML is not for mails
+  2.6 Quoting
+  2.7 Digest
+  2.8 Please Tell Us How You Solved The Problem
+
+==============================================================================
+
+1. About the lists
+
+  1.1 Mailing Lists
+
+  The mailing lists we have are all listed and described at
+  https://curl.se/mail/
+
+  Each mailing list is targeted to a specific set of users and subjects,
+  please use the one or the ones that suit you the most.
+
+  Each mailing list has hundreds up to thousands of readers, meaning that each
+  mail sent will be received and read by a large number of people. People
+  from various cultures, regions, religions and continents.
+
+  1.2 Netiquette
+
+  Netiquette is a common term for how to behave on the Internet. Of course, in
+  each particular group and subculture there will be differences in what is
+  acceptable and what is considered good manners.
+
+  This document outlines what we in the curl project consider to be good
+  etiquette, and primarily this focus on how to behave on and how to use our
+  mailing lists.
+
+  1.3 Do Not Mail a Single Individual
+
+  Many people send one question to one person. One person gets many mails, and
+  there is only one person who can give you a reply. The question may be
+  something that other people would also like to ask. These other people have
+  no way to read the reply, but to ask the one person the question. The one
+  person consequently gets overloaded with mail.
+
+  If you really want to contact an individual and perhaps pay for his or her
+  services, by all means go ahead, but if it's just another curl question,
+  take it to a suitable list instead.
+
+  1.4 Subscription Required
+
+  All curl mailing lists require that you are subscribed to allow a mail to go
+  through to all the subscribers.
+
+  If you post without being subscribed (or from a different mail address than
+  the one you are subscribed with), your mail will simply be silently
+  discarded. You have to subscribe first, then post.
+
+  The reason for this unfortunate and strict subscription policy is of course
+  to stop spam from pestering the lists.
+
+  1.5 Moderation of new posters
+
+  Several of the curl mailing lists automatically make all posts from new
+  subscribers be moderated. This means that after you have subscribed and
+  sent your first mail to a list, that mail will not be let through to the
+  list until a mailing list administrator has verified that it is OK and
+  permits it to get posted.
+
+  Once a first post has been made that proves the sender is actually talking
+  about curl-related subjects, the moderation "flag" will be switched off and
+  future posts will go through without being moderated.
+
+  The reason for this moderation policy is that we do suffer from spammers who
+  actually subscribe and send spam to our lists.
+
+  1.6 Handling trolls and spam
+
+  Despite our good intentions and hard work to keep spam off the lists and to
+  maintain a friendly and positive atmosphere, there will be times when spam
+  and or trolls get through.
+
+  Troll - "someone who posts inflammatory, extraneous, or off-topic messages
+  in an online community"
+
+  Spam - "use of electronic messaging systems to send unsolicited bulk
+  messages"
+
+  No matter what, we NEVER EVER respond to trolls or spammers on the list. If
+  you believe the list admin should do something in particular, contact him/her
+  off-list. The subject will be taken care of as much as possible to prevent
+  repeated offenses, but responding on the list to such messages never leads to
+  anything good and only puts the light even more on the offender: which was
+  the entire purpose of it getting sent to the list in the first place.
+
+  Do not feed the trolls.
+
+  1.7 How to unsubscribe
+
+  You can unsubscribe the same way you subscribed in the first place. You go
+  to the page for the particular mailing list you are subscribed to and you enter
+  your email address and password and press the unsubscribe button.
+
+  Also, the instructions to unsubscribe are included in the headers of every
+  mail that is sent out to all curl related mailing lists and there's a footer
+  in each mail that links to the "admin" page on which you can unsubscribe and
+  change other options.
+
+  You NEVER EVER email the mailing list requesting someone else to take you off
+  the list.
+
+  1.8 I posted, now what?
+
+  If you are not subscribed with the same email address that you used to send
+  the email, your post will just be silently discarded.
+
+  If you posted for the first time to the mailing list, you first need to wait
+  for an administrator to allow your email to go through (moderated). This
+  normally happens quickly but in case we are asleep, you may have to wait a
+  few hours.
+
+  Once your email goes through it is sent out to several hundred or even
+  thousands of recipients. Your email may cover an area that not that many
+  people know about or are interested in. Or possibly the person who knows
+  about it is on vacation or under a heavy work load right now. You may have
+  to wait for a response and you should not expect to get a response at all.
+  Ideally, you get an answer within a couple of days.
+
+  You do yourself and all of us a service when you include as many details as
+  possible already in your first email. Mention your operating system and
+  environment. Tell us which curl version you are using and tell us what you
+  did, what happened and what you expected would happen. Preferably, show us
+  what you did with details enough to allow others to help point out the
+  problem or repeat the steps in their locations.
+
+  Failing to include details will only delay responses and make people respond
+  and ask for more details and you will have to send a follow-up email that
+  includes them.
+
+  Expect the responses to primarily help YOU debug the issue, or ask YOU
+  questions that can lead you or others towards a solution or explanation to
+  whatever you experience.
+
+  If you are a repeat offender to the guidelines outlined in this document,
+  chances are that people will ignore you at will and your chances to get
+  responses in the future will greatly diminish.
+
+  1.9 Your emails are public
+
+  Your email, its contents and all its headers and the details in those
+  headers will be received by every subscriber of the mailing list that you
+  send your email to.
+
+  Your email as sent to a curl mailing list will end up in mail archives, on
+  the curl website and elsewhere, for others to see and read. Today and in
+  the future. In addition to the archives, the mail is sent out to thousands
+  of individuals. There is no way to undo a sent email.
+
+  When sending emails to a curl mailing list, do not include sensitive
+  information such as user names and passwords; use fake ones, temporary ones
+  or just remove them completely from the mail. Note that this includes base64
+  encoded HTTP Basic auth headers.
+
+  This public nature of the curl mailing lists makes automatically inserted mail
+  footers about mails being "private" or "only meant for the recipient" or
+  similar even more silly than usual. Because they are absolutely not private
+  when sent to a public mailing list.
+
+
+2. Sending mail
+
+  2.1 Reply or New Mail
+
+  Please do not reply to an existing message as a short-cut to post a message
+  to the lists.
+
+  Many mail programs and web archivers use information within mails to keep
+  them together as "threads", as collections of posts that discuss a certain
+  subject. If you do not intend to reply on the same or similar subject, do not
+  just hit reply on an existing mail and change the subject, create a new mail.
+
+  2.2 Reply to the List
+
+  When replying to a message from the list, make sure that you do "group
+  reply" or "reply to all", and not just reply to the author of the single
+  mail you reply to.
+
+  We are actively discouraging replying back to the single person by setting
+  the Reply-To: field in outgoing mails back to the mailing list address,
+  making it harder for people to mail the author directly, if only by mistake.
+
+  2.3 Use a Sensible Subject
+
+  Please use a subject of the mail that makes sense and that is related to the
+  contents of your mail. It makes it a lot easier to find your mail afterwards
+  and it makes it easier to track mail threads and topics.
+
+  2.4 Do Not Top-Post
+
+  If you reply to a message, do not use top-posting. Top-posting is when you
+  write the new text at the top of a mail and you insert the previous quoted
+  mail conversation below. It forces users to read the mail in a backwards
+  order to properly understand it.
+
+  This is why top posting is so bad (in top posting order):
+
+      A: Because it messes up the order in which people normally read text.
+      Q: Why is top-posting such a bad thing?
+      A: Top-posting.
+      Q: What is the most annoying thing in email?
+
+  Apart from the screwed up read order (especially when mixed together in a
+  thread when someone responds using the mandated bottom-posting style), it
+  also makes it impossible to quote only parts of the original mail.
+
+  When you reply to a mail. You let the mail client insert the previous mail
+  quoted. Then you put the cursor on the first line of the mail and you move
+  down through the mail, deleting all parts of the quotes that do not add
+  context for your comments. When you want to add a comment you do so, inline,
+  right after the quotes that relate to your comment. Then you continue
+  downwards again.
+
+  When most of the quotes have been removed and you have added your own words,
+  you are done.
+
+  2.5 HTML is not for mails
+
+  Please switch off those HTML encoded messages. You can mail all those funny
+  mails to your friends. We speak plain text mails.
+
+  2.6 Quoting
+
+  Quote as little as possible. Just enough to provide the context you cannot
+  leave out. A lengthy description can be found here:
+
+      https://www.netmeister.org/news/learn2quote.html
+
+  2.7 Digest
+
+  We allow subscribers to subscribe to the "digest" version of the mailing
+  lists. A digest is a collection of mails lumped together in one single mail.
+
+  Should you decide to reply to a mail sent out as a digest, there are two
+  things you MUST consider if you really really cannot subscribe normally
+  instead:
+
+  Cut off all mails and chatter that is not related to the mail you want to
+  reply to.
+
+  Change the subject name to something sensible and related to the subject,
+  preferably even the actual subject of the single mail you wanted to reply to
+
+  2.8 Please Tell Us How You Solved The Problem
+
+  Many people mail questions to the list, people spend some of their time and
+  make an effort in providing good answers to these questions.
+
+  If you are the one who asks, please consider responding once more in case
+  one of the hints was what solved your problems. The guys who write answers
+  feel good to know that they provided a good answer and that you fixed the
+  problem. Far too often, the person who asked the question is never heard from
+  again, and we never get to know if he/she is gone because the problem was
+  solved or perhaps because the problem was unsolvable.
+
+  Getting the solution posted also helps other users that experience the same
+  problem(s). They get to see (possibly in the web archives) that the
+  suggested fixes actually have helped at least one person.
diff --git a/curl/docs/MQTT.md b/curl/docs/MQTT.md
new file mode 100644
index 0000000..0f034f7
--- /dev/null
+++ b/curl/docs/MQTT.md
@@ -0,0 +1,27 @@
+# MQTT in curl
+
+## Usage
+
+A plain "GET" subscribes to the topic and prints all published messages.
+Doing a "POST" publishes the post data to the topic and exits.
+
+Example subscribe:
+
+    curl mqtt://host/home/bedroom/temp
+
+Example publish:
+
+    curl -d 75 mqtt://host/home/bedroom/dimmer
+
+## What does curl deliver as a response to a subscribe
+
+It outputs two bytes topic length (MSB | LSB), the topic followed by the
+payload.
+
+## Caveats
+
+Remaining limitations:
+ - Only QoS level 0 is implemented for publish
+ - No way to set retain flag for publish
+ - No TLS (mqtts) support
+ - Naive EAGAIN handling will not handle split messages
diff --git a/curl/docs/Makefile.am b/curl/docs/Makefile.am
new file mode 100644
index 0000000..e472565
--- /dev/null
+++ b/curl/docs/Makefile.am
@@ -0,0 +1,128 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2021, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+AUTOMAKE_OPTIONS = foreign no-dependencies
+
+# EXTRA_DIST breaks with $(abs_builddir) so build it using this variable
+# but distribute it (using the relative file name) in the next variable
+man_MANS = $(abs_builddir)/curl.1
+noinst_man_MANS = curl.1 mk-ca-bundle.1
+dist_man_MANS = curl-config.1
+GENHTMLPAGES = curl.html curl-config.html mk-ca-bundle.html
+PDFPAGES = curl.pdf curl-config.pdf mk-ca-bundle.pdf
+MANDISTPAGES = curl.1.dist curl-config.1.dist
+
+HTMLPAGES = $(GENHTMLPAGES)
+
+# Build targets in this file (.) before cmdline-opts to ensure that
+# the curl.1 rule below runs first
+SUBDIRS = . cmdline-opts
+DIST_SUBDIRS = $(SUBDIRS) examples libcurl
+
+CLEANFILES = $(GENHTMLPAGES) $(PDFPAGES) $(MANDISTPAGES) curl.1
+
+EXTRA_DIST =                                    \
+ $(noinst_man_MANS)                             \
+ ALTSVC.md                                      \
+ BINDINGS.md                                    \
+ BUFREF.md                                      \
+ BUG-BOUNTY.md                                  \
+ BUGS.md                                        \
+ CHECKSRC.md                                    \
+ CIPHERS.md                                     \
+ CMakeLists.txt                                 \
+ CODE_OF_CONDUCT.md                             \
+ CODE_REVIEW.md                                 \
+ CODE_STYLE.md                                  \
+ CONTRIBUTE.md                                  \
+ CURL-DISABLE.md                                \
+ DEPRECATE.md                                   \
+ DYNBUF.md                                      \
+ EXPERIMENTAL.md                                \
+ FAQ                                            \
+ FEATURES.md                                    \
+ GOVERNANCE.md                                  \
+ HELP-US.md                                     \
+ HISTORY.md                                     \
+ HSTS.md                                        \
+ HTTP-COOKIES.md                                \
+ HTTP2.md                                       \
+ HTTP3.md                                       \
+ HYPER.md                                       \
+ INSTALL                                        \
+ INSTALL.cmake                                  \
+ INSTALL.md                                     \
+ INTERNALS.md                                   \
+ KNOWN_BUGS                                     \
+ MAIL-ETIQUETTE                                 \
+ MQTT.md                                        \
+ NEW-PROTOCOL.md                                \
+ options-in-versions                            \
+ PARALLEL-TRANSFERS.md                          \
+ README.md                                      \
+ RELEASE-PROCEDURE.md                           \
+ RUSTLS.md                                      \
+ ROADMAP.md                                     \
+ SECURITY-PROCESS.md                            \
+ SSL-PROBLEMS.md                                \
+ SSLCERTS.md                                    \
+ THANKS                                         \
+ TODO                                           \
+ TheArtOfHttpScripting.md                       \
+ URL-SYNTAX.md                                  \
+ VERSIONS.md
+
+MAN2HTML= roffit $< >$@
+
+SUFFIXES = .1 .html .pdf
+
+# $(abs_builddir) is to disable VPATH when searching for this file, which
+# would otherwise find the copy in $(srcdir) which breaks the $(HUGE)
+# rule in src/Makefile.am in out-of-tree builds that references the file in the
+# build directory.
+#
+# First, seed the used copy of curl.1 with the prebuilt copy (in an out-of-tree
+# build), then run make recursively to rebuild it only if its dependencies
+# have changed.
+$(abs_builddir)/curl.1:
+	if test "$(top_builddir)x" != "$(top_srcdir)x" -a -e "$(srcdir)/curl.1"; then \
+		$(INSTALL_DATA) "$(srcdir)/curl.1" $@; fi
+	cd cmdline-opts && $(MAKE)
+
+html: $(HTMLPAGES)
+	cd libcurl && $(MAKE) html
+
+pdf: $(PDFPAGES)
+	cd libcurl && $(MAKE) pdf
+
+.1.html:
+	$(MAN2HTML)
+
+.1.pdf:
+	@(foo=`echo $@ | sed -e 's/\.[0-9]$$//g'`; \
+	groff -Tps -man $< >$$foo.ps; \
+	ps2pdf $$foo.ps $@; \
+	rm $$foo.ps; \
+	echo "converted $< to $@")
+
+distclean:
+	rm -f $(CLEANFILES)
diff --git a/curl/docs/Makefile.in b/curl/docs/Makefile.in
new file mode 100644
index 0000000..095f666
--- /dev/null
+++ b/curl/docs/Makefile.in
@@ -0,0 +1,937 @@
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+
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+
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+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2021, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
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+#
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+#
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+ BINDINGS.md                                    \
+ BUFREF.md                                      \
+ BUG-BOUNTY.md                                  \
+ BUGS.md                                        \
+ CHECKSRC.md                                    \
+ CIPHERS.md                                     \
+ CMakeLists.txt                                 \
+ CODE_OF_CONDUCT.md                             \
+ CODE_REVIEW.md                                 \
+ CODE_STYLE.md                                  \
+ CONTRIBUTE.md                                  \
+ CURL-DISABLE.md                                \
+ DEPRECATE.md                                   \
+ DYNBUF.md                                      \
+ EXPERIMENTAL.md                                \
+ FAQ                                            \
+ FEATURES.md                                    \
+ GOVERNANCE.md                                  \
+ HELP-US.md                                     \
+ HISTORY.md                                     \
+ HSTS.md                                        \
+ HTTP-COOKIES.md                                \
+ HTTP2.md                                       \
+ HTTP3.md                                       \
+ HYPER.md                                       \
+ INSTALL                                        \
+ INSTALL.cmake                                  \
+ INSTALL.md                                     \
+ INTERNALS.md                                   \
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+ MAIL-ETIQUETTE                                 \
+ MQTT.md                                        \
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+ RUSTLS.md                                      \
+ ROADMAP.md                                     \
+ SECURITY-PROCESS.md                            \
+ SSL-PROBLEMS.md                                \
+ SSLCERTS.md                                    \
+ THANKS                                         \
+ TODO                                           \
+ TheArtOfHttpScripting.md                       \
+ URL-SYNTAX.md                                  \
+ VERSIONS.md
+
+MAN2HTML = roffit $< >$@
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-recursive
+all-am: Makefile $(MANS)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(man1dir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-man
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-man
+
+uninstall-man: uninstall-man1
+
+.MAKE: $(am__recursive_targets) install-am install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-am clean clean-generic clean-libtool cscopelist-am ctags \
+	ctags-am distclean distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-man1 install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-man uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+# $(abs_builddir) is to disable VPATH when searching for this file, which
+# would otherwise find the copy in $(srcdir) which breaks the $(HUGE)
+# rule in src/Makefile.am in out-of-tree builds that references the file in the
+# build directory.
+#
+# First, seed the used copy of curl.1 with the prebuilt copy (in an out-of-tree
+# build), then run make recursively to rebuild it only if its dependencies
+# have changed.
+$(abs_builddir)/curl.1:
+	if test "$(top_builddir)x" != "$(top_srcdir)x" -a -e "$(srcdir)/curl.1"; then \
+		$(INSTALL_DATA) "$(srcdir)/curl.1" $@; fi
+	cd cmdline-opts && $(MAKE)
+
+html: $(HTMLPAGES)
+	cd libcurl && $(MAKE) html
+
+pdf: $(PDFPAGES)
+	cd libcurl && $(MAKE) pdf
+
+.1.html:
+	$(MAN2HTML)
+
+.1.pdf:
+	@(foo=`echo $@ | sed -e 's/\.[0-9]$$//g'`; \
+	groff -Tps -man $< >$$foo.ps; \
+	ps2pdf $$foo.ps $@; \
+	rm $$foo.ps; \
+	echo "converted $< to $@")
+
+distclean:
+	rm -f $(CLEANFILES)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/curl/docs/NEW-PROTOCOL.md b/curl/docs/NEW-PROTOCOL.md
new file mode 100644
index 0000000..9a14518
--- /dev/null
+++ b/curl/docs/NEW-PROTOCOL.md
@@ -0,0 +1,110 @@
+# Adding a new protocol?
+
+Every once in a while someone comes up with the idea of adding support for yet
+another protocol to curl. After all, curl already supports 25 something
+protocols and it is the Internet transfer machine for the world.
+
+In the curl project we love protocols and we love supporting many protocols
+and doing it well.
+
+So how do you proceed to add a new protocol and what are the requirements?
+
+## No fixed set of requirements
+
+This document is an attempt to describe things to consider. There is no
+checklist of the twenty-seven things you need to cross off. We view the entire
+effort as a whole and then judge if it seems to be the right thing - for
+now. The more things that look right, fit our patterns and are done in ways
+that align with our thinking, the better are the chances that we will agree
+that supporting this protocol is a grand idea.
+
+## Mutual benefit is preferred
+
+curl is not here for your protocol. Your protocol is not here for curl. The
+best cooperation and end result occur when all involved parties mutually see
+and agree that supporting this protocol in curl would be good for everyone.
+Heck, for the world.
+
+Consider "selling us" the idea that we need an implementation merged in curl,
+to be fairly important. *Why* do we want curl to support this new protocol?
+
+## Protocol requirements
+
+### Client-side
+
+The protocol implementation is for a client's side of a "communication
+session".
+
+### Transfer oriented
+
+The protocol itself should be focused on *transfers*. Be it uploads or
+downloads or both. It should at least be possible to view the transfers as
+such, like we can view reading emails over POP3 as a download and sending
+emails over SMTP as an upload.
+
+If you cannot even shoehorn the protocol into a transfer focused view, then
+you are up for a tough argument.
+
+### URL
+
+There should be a documented URL format. If there is an RFC for it there is no
+question about it but the syntax does not have to be a published RFC. It could
+be enough if it is already in use by other implementations.
+
+If you make up the syntax just in order to be able to propose it to curl, then
+you are in a bad place. URLs are designed and defined for interoperability.
+There should at least be a good chance that other clients and servers can be
+implemented supporting the same URL syntax and work the same or similar way.
+
+URLs work on registered 'schemes'. There is a register of [all officially
+recognized
+schemes](https://www.iana.org/assignments/uri-schemes/uri-schemes.xhtml). If
+your protocol is not in there, is it really a protocol we want?
+
+### Wide and public use
+
+The protocol shall already be used or have an expectation of getting used
+widely. Experimental protocols are better off worked on in experiments first,
+to prove themselves before they are adopted by curl.
+
+## Code
+
+Of course the code needs to be written, provided, licensed agreeably and it
+should follow our code guidelines and review comments have to be dealt with.
+If the implementation needs third party code, that third party code should not
+have noticeably lesser standards than the curl project itself.
+
+## Tests
+
+As much of the protocol implementation as possible needs to be verified by
+curl test cases. We must have the implementation get tested by CI jobs,
+torture tests and more.
+
+We have experienced many times in the past how new implementations were brought
+to curl and immediately once the code had been merged, the originator vanished
+from the face of the earth. That is fine, but we need to take the necessary
+precautions so when it happens we are still fine.
+
+Our test infrastructure is powerful enough to test just about every possible
+protocol - but it might require a bit of an effort to make it happen.
+
+## Documentation
+
+We cannot assume that users are particularly familiar with details and
+peculiarities of the protocol. It needs documentation.
+
+Maybe it even needs some internal documentation so that the developers who
+will try to debug something five years from now can figure out functionality a
+little easier!
+
+The protocol specification itself should be freely available without requiring
+any NDA or similar.
+
+## Do not compare
+
+We are constantly raising the bar and we are constantly improving the
+project. A lot of things we did in the past would not be acceptable if done
+today. Therefore, you might be tempted to use shortcuts or "hacks" you can
+spot other - existing - protocol implementations have used, but there is
+nothing to gain from that. The bar has been raised. Former "cheats" will not be
+tolerated anymore.
diff --git a/curl/docs/PARALLEL-TRANSFERS.md b/curl/docs/PARALLEL-TRANSFERS.md
new file mode 100644
index 0000000..325e64f
--- /dev/null
+++ b/curl/docs/PARALLEL-TRANSFERS.md
@@ -0,0 +1,58 @@
+# Parallel transfers
+
+curl 7.66.0 introduces support for doing multiple transfers simultaneously; in
+parallel.
+
+## -Z, --parallel
+
+When this command line option is used, curl will perform the transfers given
+to it at the same time. It will do up to `--parallel-max` concurrent
+transfers, with a default value of 50.
+
+## Progress meter
+
+The progress meter that is displayed when doing parallel transfers is
+completely different than the regular one used for each single transfer.
+
+  It shows:
+
+ o percent download (if known, which means *all* transfers need to have a
+   known size)
+ o percent upload (if known, with the same caveat as for download)
+ o total amount of downloaded data
+ o total amount of uploaded data
+ o number of transfers to perform
+ o number of concurrent transfers being transferred right now
+ o number of transfers queued up waiting to start
+ o total time all transfers are expected to take (if sizes are known)
+ o current time the transfers have spent so far
+ o estimated time left (if sizes are known)
+ o current transfer speed (the faster of UL/DL speeds measured over the last
+   few seconds)
+
+Example:
+
+    DL% UL%  Dled  Uled  Xfers  Live   Qd Total     Current  Left    Speed
+    72  --  37.9G     0   101    30    23  0:00:55  0:00:34  0:00:22 2752M
+
+## Behavior differences
+
+Connections are shared fine between different easy handles, but the
+"authentication contexts" are not. So for example doing HTTP Digest auth with
+one handle for a particular transfer and then continue on with another handle
+that reuses the same connection, the second handle cannot send the necessary
+Authorization header at once since the context is only kept in the original
+easy handle.
+
+To fix this, the authorization state could be made possible to share with the
+share API as well, as a context per origin + path (realm?) basically.
+
+Visible in test 153, 1412 and more.
+
+## Feedback
+
+This is early days for parallel transfer support. Keep your eyes open for
+unintended side effects or downright bugs.
+
+Tell us what you think and how you think we could improve this feature!
+
diff --git a/curl/docs/README.md b/curl/docs/README.md
new file mode 100644
index 0000000..b72d8bc
--- /dev/null
+++ b/curl/docs/README.md
@@ -0,0 +1,12 @@
+![curl logo](https://curl.se/logo/curl-logo.svg)
+
+# Documentation
+
+you will find a mix of various documentation in this directory and
+subdirectories, using several different formats. Some of them are not ideal
+for reading directly in your browser.
+
+If you would rather see the rendered version of the documentation, check out the
+curl website's [documentation section](https://curl.se/docs/) for
+general curl stuff or the [libcurl section](https://curl.se/libcurl/) for
+libcurl related documentation.
diff --git a/curl/docs/RELEASE-PROCEDURE.md b/curl/docs/RELEASE-PROCEDURE.md
new file mode 100644
index 0000000..7e6f305
--- /dev/null
+++ b/curl/docs/RELEASE-PROCEDURE.md
@@ -0,0 +1,106 @@
+curl release procedure - how to do a release
+============================================
+
+in the source code repo
+-----------------------
+
+- run `./scripts/copyright.pl` and correct possible omissions
+
+- edit `RELEASE-NOTES` to be accurate
+
+- update `docs/THANKS`
+
+- make sure all relevant changes are committed on the master branch
+
+- tag the git repo in this style: `git tag -a curl-7_34_0`. -a annotates the
+  tag and we use underscores instead of dots in the version number. Make sure
+  the tag is GPG signed (using -s).
+
+- run "./maketgz 7.34.0" to build the release tarballs. It is important that
+  you run this on a machine with the correct set of autotools etc installed
+  as this is what then will be shipped and used by most users on \*nix like
+  systems.
+
+- push the git commits and the new tag
+
+- gpg sign the 4 tarballs as maketgz suggests
+
+- upload the 8 resulting files to the primary download directory
+
+in the curl-www repo
+--------------------
+
+- edit `Makefile` (version number and date),
+
+- edit `_newslog.html` (announce the new release) and
+
+- edit `_changes.html` (insert changes+bugfixes from RELEASE-NOTES)
+
+- commit all local changes
+
+- tag the repo with the same name as used for the source repo.
+
+- make sure all relevant changes are committed and pushed on the master branch
+
+  (the website then updates its contents automatically)
+
+on GitHub
+---------
+
+- edit the newly made release tag so that it is listed as the latest release
+
+inform
+------
+
+- send an email to curl-users, curl-announce and curl-library. Insert the
+  RELEASE-NOTES into the mail.
+
+celebrate
+---------
+
+- suitable beverage intake is encouraged for the festivities
+
+curl release scheduling
+=======================
+
+Release Cycle
+-------------
+
+We do releases every 8 weeks on Wednesdays. If critical problems arise, we can
+insert releases outside of the schedule or we can move the release date - but
+this is rare.
+
+Each 8 week release cycle is split in two 4-week periods.
+
+- During the first 4 weeks after a release, we allow new features and changes
+  to curl and libcurl. If we accept any such changes, we bump the minor number
+  used for the next release.
+
+- During the second 4-week period we do not merge any features or changes, we
+  then only focus on fixing bugs and polishing things to make a solid coming
+  release.
+
+- After a regular procedure-following release (made on Wednesdays), the
+  feature window remains closed until the following Monday in case of special
+  actions or patch releases etc.
+
+If a future release date happens to end up on a "bad date", like in the middle
+of common public holidays or when the lead release manager is away traveling,
+the release date can be moved forwards or backwards a full week. This is then
+advertised well in advance.
+
+Coming dates
+------------
+
+Based on the description above, here are some planned release dates (at the
+time of this writing):
+
+- May 11, 2022 (7.83.1)
+- July 6, 2022
+- August 31, 2022
+- October 25, 2022
+- December 21, 2022
+- February 15, 2023 (last version 7 release, no feature window after)
+- March 20, 2023 (8.0.0 - curl 25 years)
+- April 17, 2023
+- July 12, 2023
diff --git a/curl/docs/ROADMAP.md b/curl/docs/ROADMAP.md
new file mode 100644
index 0000000..e48c21b
--- /dev/null
+++ b/curl/docs/ROADMAP.md
@@ -0,0 +1,24 @@
+# curl the next few years - perhaps
+
+Roadmap of things Daniel Stenberg wants to work on next. It is intended to
+serve as a guideline for others for information, feedback and possible
+participation.
+
+## "Complete" the HTTP/3 support
+
+curl has experimental support for HTTP/3 since a good while back. There are
+some functionality missing and once the final specs are published we want to
+eventually remove the "experimental" label from this functionality.
+
+## HTTPS DNS records
+
+As a DNS version of alt-svc and also a pre-requisite for ECH (see below).
+
+See: https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-svcb-https-02
+
+## ECH (Encrypted Client Hello - formerly known as ESNI)
+
+ See Daniel's post on [Support of Encrypted
+ SNI](https://curl.se/mail/lib-2019-03/0000.html) on the mailing list.
+
+ Initial work exists in https://github.com/curl/curl/pull/4011
diff --git a/curl/docs/RUSTLS.md b/curl/docs/RUSTLS.md
new file mode 100644
index 0000000..4b49b5c
--- /dev/null
+++ b/curl/docs/RUSTLS.md
@@ -0,0 +1,26 @@
+# Rustls
+
+[Rustls is a TLS backend written in Rust.](https://docs.rs/rustls/). Curl can
+be built to use it as an alternative to OpenSSL or other TLS backends. We use
+the [rustls-ffi C bindings](https://github.com/rustls/rustls-ffi/). This
+version of curl depends on version v0.8.2 of rustls-ffi.
+
+# Building with rustls
+
+First, [install Rust](https://rustup.rs/).
+
+Next, check out, build, and install the appropriate version of rustls-ffi:
+
+    % cargo install cbindgen
+    % git clone https://github.com/rustls/rustls-ffi -b v0.8.2
+    % cd rustls-ffi
+    % make
+    % make DESTDIR=${HOME}/rustls-ffi-built/ install
+
+Now configure and build curl with rustls:
+
+    % git clone https://github.com/curl/curl
+    % cd curl
+    % autoreconf -fi
+    % ./configure --with-rustls=${HOME}/rustls-ffi-built
+    % make
diff --git a/curl/docs/SECURITY-PROCESS.md b/curl/docs/SECURITY-PROCESS.md
new file mode 100644
index 0000000..a7e8661
--- /dev/null
+++ b/curl/docs/SECURITY-PROCESS.md
@@ -0,0 +1,214 @@
+# curl security process
+
+This document describes how security vulnerabilities should be handled in the
+curl project.
+
+## Publishing Information
+
+All known and public curl or libcurl related vulnerabilities are listed on
+[the curl website security page](https://curl.se/docs/security.html).
+
+Security vulnerabilities **should not** be entered in the project's public bug
+tracker.
+
+## Vulnerability Handling
+
+The typical process for handling a new security vulnerability is as follows.
+
+No information should be made public about a vulnerability until it is
+formally announced at the end of this process. That means, for example, that a
+bug tracker entry must NOT be created to track the issue since that will make
+the issue public and it should not be discussed on any of the project's public
+mailing lists. Also messages associated with any commits should not make any
+reference to the security nature of the commit if done prior to the public
+announcement.
+
+- The person discovering the issue, the reporter, reports the vulnerability on
+  [https://hackerone.com/curl](https://hackerone.com/curl). Issues filed there
+  reach a handful of selected and trusted people.
+
+- Messages that do not relate to the reporting or managing of an undisclosed
+  security vulnerability in curl or libcurl are ignored and no further action
+  is required.
+
+- A person in the security team responds to the original report to acknowledge
+  that a human has seen the report.
+
+- The security team investigates the report and either rejects it or accepts
+  it. See below for examples of problems that are not considered
+  vulnerabilities.
+
+- If the report is rejected, the team writes to the reporter to explain why.
+
+- If the report is accepted, the team writes to the reporter to let him/her
+  know it is accepted and that they are working on a fix.
+
+- The security team discusses the problem, works out a fix, considers the
+  impact of the problem and suggests a release schedule. This discussion
+  should involve the reporter as much as possible.
+
+- The release of the information should be "as soon as possible" and is most
+  often synchronized with an upcoming release that contains the fix. If the
+  reporter, or anyone else involved, thinks the next planned release is too
+  far away, then a separate earlier release should be considered.
+
+- Write a security advisory draft about the problem that explains what the
+  problem is, its impact, which versions it affects, solutions or workarounds,
+  when the release is out and make sure to credit all contributors properly.
+  Figure out the CWE (Common Weakness Enumeration) number for the flaw.
+
+- Request a CVE number from
+  [HackerOne](https://docs.hackerone.com/programs/cve-requests.html)
+
+- Update the "security advisory" with the CVE number.
+
+- The security team commits the fix in a private branch. The commit message
+  should ideally contain the CVE number.
+
+- The security team also decides on and delivers a monetary reward to the
+  reporter as per the bug-bounty policies.
+
+- No more than 10 days before release, inform
+  [distros@openwall](https://oss-security.openwall.org/wiki/mailing-lists/distros)
+  to prepare them about the upcoming public security vulnerability
+  announcement - attach the advisory draft for information with CVE and
+  current patch. 'distros' does not accept an embargo longer than 14 days and
+  they do not care for Windows-specific flaws.
+
+- No more than 48 hours before the release, the private branch is merged into
+  the master branch and pushed. Once pushed, the information is accessible to
+  the public and the actual release should follow suit immediately afterwards.
+  The time between the push and the release is used for final tests and
+  reviews.
+
+- The project team creates a release that includes the fix.
+
+- The project team announces the release and the vulnerability to the world in
+  the same manner we always announce releases. It gets sent to the
+  curl-announce, curl-library and curl-users mailing lists.
+
+- The security web page on the website should get the new vulnerability
+  mentioned.
+
+## security (at curl dot se)
+
+This is a private mailing list for discussions on and about curl security
+issues.
+
+Who is on this list? There are a couple of criteria you must meet, and then we
+might ask you to join the list or you can ask to join it. It really is not a
+formal process. We basically only require that you have a long-term presence
+in the curl project and you have shown an understanding for the project and
+its way of working. You must have been around for a good while and you should
+have no plans of vanishing in the near future.
+
+We do not make the list of participants public mostly because it tends to vary
+somewhat over time and a list somewhere will only risk getting outdated.
+
+## Publishing Security Advisories
+
+1. Write up the security advisory, using markdown syntax. Use the same
+   subtitles as last time to maintain consistency.
+
+2. Name the advisory file after the allocated CVE id.
+
+3. Add a line on the top of the array in `curl-www/docs/vuln.pm'.
+
+4. Put the new advisory markdown file in the curl-www/docs/ directory. Add it
+   to the git repository.
+
+5. Run `make` in your local web checkout and verify that things look fine.
+
+6. On security advisory release day, push the changes on the curl-www
+   repository's remote master branch.
+
+## Hackerone
+
+Request the issue to be disclosed. If there are sensitive details present in
+the report and discussion, those should be redacted from the disclosure. The
+default policy is to disclose as much as possible as soon as the vulnerability
+has been published.
+
+## Bug Bounty
+
+See [BUG-BOUNTY](https://curl.se/docs/bugbounty.html) for details on the
+bug bounty program.
+
+# Not security issues
+
+This is an incomplete list of issues that are not considered vulnerabilities.
+
+## Small memory leaks
+
+We do not consider a small memory leak a security problem; even if the amount
+of allocated memory grows by a small amount every now and then. Long-living
+applications and services already need to have counter-measures and deal with
+growing memory usage, be it leaks or just increased use. A small memory or
+resource leak is then expected to *not* cause a security problem.
+
+Of course there can be a discussion if a leak is small or not. A large leak
+can be considered a security problem due to the DOS risk. If leaked memory
+contains sensitive data it might also qualify as a security problem.
+
+## Never-ending transfers
+
+We do not consider flaws that cause a transfer to never end to be a security
+problem. There are already several benign and likely reasons for transfers to
+stall and never end, so applications that cannot deal with never-ending
+transfers already need to have counter-measures established.
+
+If the problem avoids the regular counter-measures when it causes a never-
+ending transfer, it might very well be a security problem.
+
+## Not practically possible
+
+If the flaw or vulnerability cannot practically get executed on existing
+hardware it is not a security problem.
+
+## API misuse
+
+If a reported issue only triggers by an application using the API in a way
+that is not documented to work or even documented to not work, it is probably
+not going to be considered a security problem. We only guarantee secure and
+proper functionality when the APIs are used as expected and documented.
+
+There can be a discussion about what the documentation actually means and how
+to interpret the text, which might end up with us still agreeing that it is a
+security problem.
+
+## Local attackers already present
+
+When an issue can only be attacked or misused by an attacker present on the
+local system or network, the bar is raised. If a local user wrongfully has
+elevated rights on your system enough to attack curl, they can probably
+already do much worse harm and the problem is not really in curl.
+
+## Experiments
+
+Vulnerabilities in features which are off by default (in the build) and
+documented as experimental, are not eligible for a reward and we do not
+consider them security problems.
+
+## URL inconsistencies
+
+URL parser inconsistencies between browsers and curl are expected and are not
+considered security vulnerabilities. The WHATWG URL Specification and RFC
+3986+ (the plus meaning that it is an extended version) [are not completely
+interoperable](https://github.com/bagder/docs/blob/master/URL-interop.md).
+
+Obvious parser bugs can still be vulnerabilities of course.
+
+## Visible command line arguments
+
+The curl command blanks the contents of a number of command line arguments to
+prevent them from appearing in process listings. It does not blank all
+arguments even if some of them that are not blanked might contain sensitive
+data. We consider this functionality a best-effort and omissions are not
+security vulnerabilities.
+
+ - not all systems allow the arguments to be blanked in the first place
+ - since curl blanks the argument itself they will be readable for a short
+   moment in time no matter what
+ - virtually every argument can contain sensitive data, depending on use
+ - blanking all arguments would make it impractical for users to differentiate
+   curl command lines in process listings
diff --git a/curl/docs/SSL-PROBLEMS.md b/curl/docs/SSL-PROBLEMS.md
new file mode 100644
index 0000000..4afe300
--- /dev/null
+++ b/curl/docs/SSL-PROBLEMS.md
@@ -0,0 +1,98 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+# SSL problems
+
+  First, let's establish that we often refer to TLS and SSL interchangeably as
+  SSL here. The current protocol is called TLS, it was called SSL a long time
+  ago.
+
+  There are several known reasons why a connection that involves SSL might
+  fail. This is a document that attempts to detail the most common ones and
+  how to mitigate them.
+
+## CA certs
+
+  CA certs are used to digitally verify the server's certificate. You need a
+  "ca bundle" for this. See lots of more details on this in the SSLCERTS
+  document.
+
+## CA bundle missing intermediate certificates
+
+  When using said CA bundle to verify a server cert, you will experience
+  problems if your CA store does not contain the certificates for the
+  intermediates if the server does not provide them.
+
+  The TLS protocol mandates that the intermediate certificates are sent in the
+  handshake, but as browsers have ways to survive or work around such
+  omissions, missing intermediates in TLS handshakes still happen that
+  browser-users will not notice.
+
+  Browsers work around this problem in two ways: they cache intermediate
+  certificates from previous transfers and some implement the TLS "AIA"
+  extension that lets the client explicitly download such certificates on
+  demand.
+
+## Protocol version
+
+  Some broken servers fail to support the protocol negotiation properly that
+  SSL servers are supposed to handle. This may cause the connection to fail
+  completely. Sometimes you may need to explicitly select a SSL version to use
+  when connecting to make the connection succeed.
+
+  An additional complication can be that modern SSL libraries sometimes are
+  built with support for older SSL and TLS versions disabled!
+
+  All versions of SSL and the TLS versions before 1.2 are considered insecure
+  and should be avoided. Use TLS 1.2 or later.
+
+## Ciphers
+
+  Clients give servers a list of ciphers to select from. If the list does not
+  include any ciphers the server wants/can use, the connection handshake
+  fails.
+
+  curl has recently disabled the user of a whole bunch of seriously insecure
+  ciphers from its default set (slightly depending on SSL backend in use).
+
+  You may have to explicitly provide an alternative list of ciphers for curl
+  to use to allow the server to use a WEAK cipher for you.
+
+  Note that these weak ciphers are identified as flawed. For example, this
+  includes symmetric ciphers with less than 128 bit keys and RC4.
+
+  Schannel in Windows XP is not able to connect to servers that no longer
+  support the legacy handshakes and algorithms used by those versions, so we
+  advice against building curl to use Schannel on really old Windows versions.
+
+  References:
+
+  https://datatracker.ietf.org/doc/html/draft-popov-tls-prohibiting-rc4-01
+
+## Allow BEAST
+
+  BEAST is the name of a TLS 1.0 attack that surfaced 2011. When adding means
+  to mitigate this attack, it turned out that some broken servers out there in
+  the wild did not work properly with the BEAST mitigation in place.
+
+  To make such broken servers work, the --ssl-allow-beast option was
+  introduced. Exactly as it sounds, it re-introduces the BEAST vulnerability
+  but on the other hand it allows curl to connect to that kind of strange
+  servers.
+
+## Disabling certificate revocation checks
+
+  Some SSL backends may do certificate revocation checks (CRL, OCSP, etc)
+  depending on the OS or build configuration. The --ssl-no-revoke option was
+  introduced in 7.44.0 to disable revocation checking but currently is only
+  supported for Schannel (the native Windows SSL library), with an exception
+  in the case of Windows' Untrusted Publishers block list which it seems cannot
+  be bypassed. This option may have broader support to accommodate other SSL
+  backends in the future.
+
+  References:
+
+  https://curl.se/docs/ssl-compared.html
diff --git a/curl/docs/SSLCERTS.md b/curl/docs/SSLCERTS.md
new file mode 100644
index 0000000..ec57f41
--- /dev/null
+++ b/curl/docs/SSLCERTS.md
@@ -0,0 +1,173 @@
+SSL Certificate Verification
+============================
+
+SSL is TLS
+----------
+
+SSL is the old name. It is called TLS these days.
+
+
+Native SSL
+----------
+
+If libcurl was built with Schannel or Secure Transport support (the native SSL
+libraries included in Windows and Mac OS X), then this does not apply to
+you. Scroll down for details on how the OS-native engines handle SSL
+certificates. If you are not sure, then run "curl -V" and read the results. If
+the version string says `Schannel` in it, then it was built with Schannel
+support.
+
+It is about trust
+-----------------
+
+This system is about trust. In your local CA certificate store you have certs
+from *trusted* Certificate Authorities that you then can use to verify that the
+server certificates you see are valid. they are signed by one of the CAs you
+trust.
+
+Which CAs do you trust? You can decide to trust the same set of companies your
+operating system trusts, or the set one of the known browsers trust. That is
+basically trust via someone else you trust. You should just be aware that
+modern operating systems and browsers are setup to trust *hundreds* of
+companies and in recent years several such CAs have been found untrustworthy.
+
+Certificate Verification
+------------------------
+
+libcurl performs peer SSL certificate verification by default. This is done
+by using a CA certificate store that the SSL library can use to make sure the
+peer's server certificate is valid.
+
+If you communicate with HTTPS, FTPS or other TLS-using servers using
+certificates that are signed by CAs present in the store, you can be sure
+that the remote server really is the one it claims to be.
+
+If the remote server uses a self-signed certificate, if you do not install a CA
+cert store, if the server uses a certificate signed by a CA that is not
+included in the store you use or if the remote host is an impostor
+impersonating your favorite site, and you want to transfer files from this
+server, do one of the following:
+
+ 1. Tell libcurl to *not* verify the peer. With libcurl you disable this with
+    `curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE);`
+
+    With the curl command line tool, you disable this with -k/--insecure.
+
+ 2. Get a CA certificate that can verify the remote server and use the proper
+    option to point out this CA cert for verification when connecting. For
+    libcurl hackers: `curl_easy_setopt(curl, CURLOPT_CAINFO, cacert);`
+
+    With the curl command line tool: --cacert [file]
+
+ 3. Add the CA cert for your server to the existing default CA certificate
+    store. The default CA certificate store can be changed at compile time with
+    the following configure options:
+
+    --with-ca-bundle=FILE: use the specified file as the CA certificate store.
+    CA certificates need to be concatenated in PEM format into this file.
+
+    --with-ca-path=PATH: use the specified path as CA certificate store. CA
+    certificates need to be stored as individual PEM files in this directory.
+    You may need to run c_rehash after adding files there.
+
+    If neither of the two options is specified, configure will try to auto-detect
+    a setting. It's also possible to explicitly not hardcode any default store
+    but rely on the built in default the crypto library may provide instead.
+    You can achieve that by passing both --without-ca-bundle and
+    --without-ca-path to the configure script.
+
+    If you use Internet Explorer, this is one way to get extract the CA cert
+    for a particular server:
+
+     - View the certificate by double-clicking the padlock
+     - Find out where the CA certificate is kept (Certificate>
+       Authority Information Access>URL)
+     - Get a copy of the crt file using curl
+     - Convert it from crt to PEM using the openssl tool:
+       openssl x509 -inform DES -in yourdownloaded.crt \
+       -out outcert.pem -text
+     - Add the 'outcert.pem' to the CA certificate store or use it stand-alone
+       as described below.
+
+    If you use the 'openssl' tool, this is one way to get extract the CA cert
+    for a particular server:
+
+     - `openssl s_client -showcerts -servername server -connect server:443 > cacert.pem`
+     - type "quit", followed by the "ENTER" key
+     - The certificate will have "BEGIN CERTIFICATE" and "END CERTIFICATE"
+       markers.
+     - If you want to see the data in the certificate, you can do: "openssl
+       x509 -inform PEM -in certfile -text -out certdata" where certfile is
+       the cert you extracted from logfile. Look in certdata.
+     - If you want to trust the certificate, you can add it to your CA
+       certificate store or use it stand-alone as described. Just remember that
+       the security is no better than the way you obtained the certificate.
+
+ 4. If you are using the curl command line tool, you can specify your own CA
+    cert file by setting the environment variable `CURL_CA_BUNDLE` to the path
+    of your choice.
+
+    If you are using the curl command line tool on Windows, curl will search
+    for a CA cert file named "curl-ca-bundle.crt" in these directories and in
+    this order:
+      1. application's directory
+      2. current working directory
+      3. Windows System directory (e.g. C:\windows\system32)
+      4. Windows Directory (e.g. C:\windows)
+      5. all directories along %PATH%
+
+ 5. Get a better/different/newer CA cert bundle! One option is to extract the
+    one a recent Firefox browser uses by running 'make ca-bundle' in the curl
+    build tree root, or possibly download a version that was generated this
+    way for you: [CA Extract](https://curl.se/docs/caextract.html)
+
+Neglecting to use one of the above methods when dealing with a server using a
+certificate that is not signed by one of the certificates in the installed CA
+certificate store, will cause SSL to report an error ("certificate verify
+failed") during the handshake and SSL will then refuse further communication
+with that server.
+
+Certificate Verification with NSS
+---------------------------------
+
+If libcurl was built with NSS support, then depending on the OS distribution,
+it is probably required to take some additional steps to use the system-wide
+CA cert db. RedHat ships with an additional module, libnsspem.so, which
+enables NSS to read the OpenSSL PEM CA bundle. On openSUSE you can install
+p11-kit-nss-trust which makes NSS use the system wide CA certificate store. NSS
+also has a new [database format](https://wiki.mozilla.org/NSS_Shared_DB).
+
+Starting with version 7.19.7, libcurl automatically adds the 'sql:' prefix to
+the certdb directory (either the hardcoded default /etc/pki/nssdb or the
+directory configured with SSL_DIR environment variable). To check which certdb
+format your distribution provides, examine the default certdb location:
+/etc/pki/nssdb; the new certdb format can be identified by the filenames
+cert9.db, key4.db, pkcs11.txt; filenames of older versions are cert8.db,
+key3.db, secmod.db.
+
+Certificate Verification with Schannel and Secure Transport
+-----------------------------------------------------------
+
+If libcurl was built with Schannel (Microsoft's native TLS engine) or Secure
+Transport (Apple's native TLS engine) support, then libcurl will still perform
+peer certificate verification, but instead of using a CA cert bundle, it will
+use the certificates that are built into the OS. These are the same
+certificates that appear in the Internet Options control panel (under Windows)
+or Keychain Access application (under OS X). Any custom security rules for
+certificates will be honored.
+
+Schannel will run CRL checks on certificates unless peer verification is
+disabled. Secure Transport on iOS will run OCSP checks on certificates unless
+peer verification is disabled. Secure Transport on OS X will run either OCSP
+or CRL checks on certificates if those features are enabled, and this behavior
+can be adjusted in the preferences of Keychain Access.
+
+HTTPS proxy
+-----------
+
+Since version 7.52.0, curl can do HTTPS to the proxy separately from the
+connection to the server. This TLS connection is handled separately from the
+server connection so instead of `--insecure` and `--cacert` to control the
+certificate verification, you use `--proxy-insecure` and `--proxy-cacert`.
+With these options, you make sure that the TLS connection and the trust of the
+proxy can be kept totally separate from the TLS connection to the server.
diff --git a/curl/docs/THANKS b/curl/docs/THANKS
new file mode 100644
index 0000000..e3a2ff5
--- /dev/null
+++ b/curl/docs/THANKS
@@ -0,0 +1,2638 @@
+ This project has been alive for many years. Countless people have provided
+ feedback that have improved curl. Here follows a list of people that have
+ contributed (a-z order).
+
+ If you have contributed but are missing here, please let us know!
+
+0xee on github
+0xflotus on github
+1337vt on github
+1ocalhost on github
+3dyd on github
+3eka on github
+8U61ife on github
+a1346054 on github
+Aaro Koskinen
+Aaron Oneal
+Aaron Orenstein
+Aaron Scarisbrick
+aasivov on github
+Abhinav Singh
+Abram Pousada
+accountantM on github
+AceCrow on Github
+Adam Barclay
+Adam Brown
+Adam Coyne
+Adam D. Moss
+Adam Langley
+Adam Light
+Adam Marcionek
+Adam Piggott
+Adam Rosenfield
+Adam Sampson
+Adam Tkac
+Adnan Khan
+adnn on github
+Adrian Burcea
+Adrian Peniak
+Adrian Schuur
+Adriano Meirelles
+afrind on github
+ahodesuka on github
+Ajit Dhumale
+Akhil Kedia
+Aki Koskinen
+Akos Pasztory
+Akshay Vernekar
+Alain Danteny
+Alain Miniussi
+Alan Jenkins
+Alan Pinstein
+Albert Chin-A-Young
+Albert Choy
+Albin Vass
+Alejandro Alvarez Ayllon
+Alejandro Colomar
+Alejandro R. Sedeño
+Aleksandar Milivojevic
+Aleksander Mazur
+Aleksandr Krotov
+Aleksey Tulinov
+Ales Mlakar
+Ales Novak
+Alessandro Ghedini
+Alessandro Vesely
+Alex aka WindEagle
+Alex Baines
+Alex Bligh
+Alex Chan
+Alex Crichton
+Alex Fishman
+Alex Gaynor
+Alex Grebenschikov
+Alex Gruz
+Alex Kiernan
+Alex Konev
+Alex Malinovich
+Alex Mayorga
+Alex McLellan
+Alex Neblett
+Alex Nichols
+Alex Potapenko
+Alex Rousskov
+Alex Samorukov
+Alex Suykov
+Alex Vinnik
+Alex Xu
+Alexander Beedie
+Alexander Chuykov
+Alexander Dyagilev
+Alexander Elgert
+Alexander Kanavin
+Alexander Klauer
+Alexander Kourakos
+Alexander Krasnostavsky
+Alexander Lazic
+Alexander Pepper
+Alexander Peslyak
+Alexander Sinditskiy
+Alexander Traud
+Alexander V. Tikhonov
+Alexander Zhuravlev
+Alexandre Pion
+Alexey Borzov
+Alexey Eremikhin
+Alexey Melnichuk
+Alexey Pesternikov
+Alexey Simak
+Alexey Zakhlestin
+Alexis Carvalho
+Alexis La Goutte
+Alexis Vachette
+Alfonso Martone
+Alfred Gebert
+Allen Pulsifer
+Alona Rossen
+Amaury Denoyelle
+amishmm on github
+Amit Katyal
+Amol Pattekar
+Amr Shahin
+Anatol Belski
+Anatoli Tubman
+Anders Bakken
+Anders Berg
+Anders Gustafsson
+Anders Havn
+Anders Roxell
+Anderson Sasaki
+Anderson Toshiyuki Sasaki
+Andi Jahja
+Andre Guibert de Bruet
+Andre Heinecke
+Andrea Pappacoda
+Andreas Damm
+Andreas Falkenhahn
+Andreas Farber
+Andreas Fischer
+Andreas Kostyrka
+Andreas Malzahn
+Andreas Ntaflos
+Andreas Olsson
+Andreas Rieke
+Andreas Roth
+Andreas Schneider
+Andreas Schuldei
+Andreas Streichardt
+Andreas Wurf
+Andrei Benea
+Andrei Bica
+Andrei Cipu
+Andrei Karas
+Andrei Kurushin
+Andrei Neculau
+Andrei Rybak
+Andrei Sedoi
+Andrei Valeriu BICA
+Andrei Virtosu
+Andrej E Baranov
+Andrew Barnert
+Andrew Barnes
+Andrew Benham
+Andrew Biggs
+Andrew Bushnell
+Andrew de los Reyes
+Andrew Francis
+Andrew Fuller
+Andrew Ishchuk
+Andrew Krieger
+Andrew Kurushin
+Andrew Lambert
+Andrew Moise
+Andrew Potter
+Andrew Robbins
+Andrew Wansink
+Andrey Alifanov
+Andrey Gursky
+Andrey Labunets
+Andrii Moiseiev
+Andrius Merkys
+Andrés García
+Andy Cedilnik
+Andy Fiddaman
+Andy Serpa
+Andy Tsouladze
+Angus Mackay
+anio on github
+anon00000000 on github
+anshnd on github
+Antarpreet Singh
+Anthon Pang
+Anthony Avina
+Anthony Bryan
+Anthony G. Basile
+Anthony Hu
+Anthony Ramine
+Anthony Shaw
+Antoine Aubert
+Antoine Calando
+Antoine Pietri
+Anton Bychkov
+Anton Gerasimov
+Anton Kalmykov
+Anton Malov
+Anton Yabchinskiy
+Antoni Villalonga
+Antonio Larrosa
+Antony74 on github
+Antti Hätälä
+April King
+arainchik on github
+Archangel_SDY on github
+Arkadiusz Miskiewicz
+Armel Asselin
+Arnaud Compan
+Arnaud Ebalard
+Arnaud Rebillout
+Aron Bergman
+Aron Rotteveel
+Artak Galoyan
+Arthur Murray
+Artur Sinila
+Arve Knudsen
+Arvid Norberg
+arvids-kokins-bidstack on github
+asavah on github
+Ashish Shukla
+Ashwin Metpalli
+Ask Bjørn Hansen
+Askar Safin
+Ates Goral
+Augustus Saunders
+Austin Green
+Avery Fay
+awesomenode on github
+Axel Chong
+Axel Morawietz
+Axel Tillequin
+Ayoub Boudhar
+Ayushman Singh Chauhan
+b9a1 on github
+Bachue Zhou
+Balaji Parasuram
+Balaji S Rao
+Balaji Salunke
+Balakrishnan Balasubramanian
+Balazs Kovacsics
+Balint Szilakszi
+Barry Abrahamson
+Barry Pollard
+Bart Whiteley
+Baruch Siach
+Bas Mevissen
+Bas van Schaik
+Bastian Krause
+Bastien Bouclet
+Basuke Suzuki
+baumanj on github
+bdry on github
+beckenc on github
+Ben Boeckel
+Ben Darnell
+Ben Greear
+Ben Kohler
+Ben Madsen
+Ben Noordhuis
+Ben Van Hof
+Ben Voris
+Ben Winslow
+Benau on github
+Benbuck Nason
+Benjamin Gerard
+Benjamin Gilbert
+Benjamin Johnson
+Benjamin Kircher
+Benjamin Riefenstahl
+Benjamin Ritcey
+Benjamin Sergeant
+Benoit Neil
+Benoit Sigoure
+Bernard Leak
+Bernard Spil
+Bernat Mut
+Bernd Mueller
+Bernhard Iselborn
+Bernhard M. Wiedemann
+Bernhard Reutner-Fischer
+Bernhard Walle
+Bert Huijben
+Bertrand Demiddelaer
+Bertrand Simonnet
+beslick5 on github
+Bevan Weiss
+Bill Doyle
+Bill Egert
+Bill Hoffman
+Bill Middlecamp
+Bill Nagel
+Bill Pyne
+billionai on github
+Billyzou0741326 on github
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+Travis Obenhaus
+Trivikram Kamat
+Troels Walsted Hansen
+Troy Engel
+Tseng Jun
+Tuomas Siipola
+Tuomo Rinne
+Tupone Alfredo
+Tyler Hall
+Török Edwin
+Ulf Härnhammar
+Ulf Samuelsson
+Ulrich Doehner
+Ulrich Telle
+Ulrich Zadow
+updatede on github
+UrsusArctos on github
+User Sg
+ustcqidi on github
+Vadim Grinshpun
+Valentin David
+Valentin Richter
+Valentyn Korniienko
+Valentín Gutiérrez
+Valerii Zapodovnikov
+vanillajonathan on github
+Varnavas Papaioannou
+Vasiliy Faronov
+Vasily Lobaskin
+Vasy Okhin
+Venkat Akella
+Venkataramana Mokkapati
+Vicente Garcia
+Victor Magierski
+Victor Snezhko
+Victor Vieux
+Vijay Panghal
+Vikram Saxena
+Viktor Szakats
+Vilhelm Prytz
+Ville Skyttä
+Vilmos Nebehaj
+Vincas Razma
+Vincent Bronner
+Vincent Grande
+Vincent Le Normand
+Vincent Penquerc'h
+Vincent Sanders
+Vincent Torri
+vitaha85 on github
+Vitaly Varyvdin
+vl409 on github
+Vlad Grachov
+Vlad Ureche
+Vladimir Grishchenko
+Vladimir Kotal
+Vladimir Lazarenko
+Vladimir Panteleev
+Vladimir Varlamov
+Vlastimil Ovčáčík
+Vojtech Janota
+Vojtech Minarik
+Vojtěch Král
+Volker Schmid
+Vsevolod Novikov
+vshmuk on hackerone
+Vyron Tsingaras
+W. Mark Kubacki
+Waldek Kozba
+Walter J. Mack
+Ward Willats
+Warren Menzer
+Wayne Haigh
+Wenchao Li
+Wenxiang Qian
+Werner Koch
+Werner Stolz
+Wes Hinsley
+wesinator on github
+Wesley Laxton
+Wesley Miaw
+Wez Furlong
+Wham Bang
+Wilfredo Sanchez
+Will Dietz
+Will Roberts
+Willem Sparreboom
+William A. Rowe Jr
+William Ahern
+William Desportes
+wmsch on github
+wncboy on github
+Wojciech Zwiefka
+Wouter Van Rooy
+Wu Yongzheng
+Wyatt O'Day
+Wyatt OʼDay
+x2018 on github
+Xavier Bouchoux
+XhmikosR on github
+XhstormR on github
+Xiang Xiao
+Xiangbin Li
+Xiaoke Wang
+Xiaoyin Liu
+XmiliaH on github
+xnynx on github
+xwxbug on github
+Yaakov Selkowitz
+Yang Tse
+Yaobin Wen
+Yarram Sunil
+Yasuharu Yamada
+Yasuhiro Matsumoto
+Yechiel Kalmenson
+Yehezkel Horowitz
+Yehoshua Hershberg
+ygthien on github
+Yi Huang
+Yiming Jing
+Yingwei Liu
+Ymir1711 on github
+Yonggang Luo
+Yongkang Huang
+Younes El-karama
+youngchopin on github
+Yousuke Kimoto
+Yu Xin
+Yukihiro Kawada
+Yun SangHo
+Yuri Slobodyanyuk
+Yuriy Sosov
+Yusuke Nakamura
+Yves Arrouye
+Yves Lejeune
+z2-2z on github
+z2_ on hackerone
+Zachary Seguin
+Zdenek Pavlas
+Zekun Ni
+zelinchen on github
+Zenju on github
+Zero King
+Zhang Xiuhua
+Zhao Yisha
+Zhaoyang Wu
+Zhibiao Wu
+Zhouyihai Ding
+ZimCodes on github
+zloi-user on github
+Zmey Petroff
+Zvi Har'El
+zzq1015 on github
+Ádler Jonas Gross
+Érico Nogueira
+İsmail Dönmez
+Łukasz Domeradzki
+Štefan Kremeň
+Борис Верховский
+Коваленко Анатолий Викторович
+Никита Дорохин
+ウさん
+不确定
+加藤郁之
+梦终无痕
diff --git a/curl/docs/TODO b/curl/docs/TODO
new file mode 100644
index 0000000..5c5a77a
--- /dev/null
+++ b/curl/docs/TODO
@@ -0,0 +1,1304 @@
+                                  _   _ ____  _
+                              ___| | | |  _ \| |
+                             / __| | | | |_) | |
+                            | (__| |_| |  _ <| |___
+                             \___|\___/|_| \_\_____|
+
+                Things that could be nice to do in the future
+
+ Things to do in project curl. Please tell us what you think, contribute and
+ send us patches that improve things.
+
+ Be aware that these are things that we could do, or have once been considered
+ things we could do. If you want to work on any of these areas, please
+ consider bringing it up for discussions first on the mailing list so that we
+ all agree it is still a good idea for the project.
+
+ All bugs documented in the KNOWN_BUGS document are subject for fixing.
+
+ 1. libcurl
+ 1.1 TFO support on Windows
+ 1.2 Consult %APPDATA% also for .netrc
+ 1.3 struct lifreq
+ 1.4 alt-svc sharing
+ 1.5 get rid of PATH_MAX
+ 1.6 native IDN support on macOS
+ 1.7 Support HTTP/2 for HTTP(S) proxies
+ 1.8 CURLOPT_RESOLVE for any port number
+ 1.9 Cache negative name resolves
+ 1.10 auto-detect proxy
+ 1.11 minimize dependencies with dynamically loaded modules
+ 1.12 updated DNS server while running
+ 1.13 c-ares and CURLOPT_OPENSOCKETFUNCTION
+ 1.15 Monitor connections in the connection pool
+ 1.16 Try to URL encode given URL
+ 1.17 Add support for IRIs
+ 1.18 try next proxy if one does not work
+ 1.19 provide timing info for each redirect
+ 1.20 SRV and URI DNS records
+ 1.21 netrc caching and sharing
+ 1.22 CURLINFO_PAUSE_STATE
+ 1.23 Offer API to flush the connection pool
+ 1.25 Expose tried IP addresses that failed
+ 1.28 FD_CLOEXEC
+ 1.29 Upgrade to websockets
+ 1.30 config file parsing
+ 1.31 erase secrets from heap/stack after use
+ 1.32 add asynch getaddrinfo support
+
+ 2. libcurl - multi interface
+ 2.1 More non-blocking
+ 2.2 Better support for same name resolves
+ 2.3 Non-blocking curl_multi_remove_handle()
+ 2.4 Split connect and authentication process
+ 2.5 Edge-triggered sockets should work
+ 2.6 multi upkeep
+ 2.7 Virtual external sockets
+ 2.8 dynamically decide to use socketpair
+
+ 3. Documentation
+ 3.1 Improve documentation about fork safety
+ 3.2 Provide cmake config-file
+
+ 4. FTP
+ 4.1 HOST
+ 4.2 Alter passive/active on failure and retry
+ 4.3 Earlier bad letter detection
+ 4.4 Support CURLOPT_PREQUOTE for dir listings too
+ 4.5 ASCII support
+ 4.6 GSSAPI via Windows SSPI
+ 4.7 STAT for LIST without data connection
+
+ 5. HTTP
+ 5.2 Set custom client ip when using haproxy protocol
+ 5.3 Rearrange request header order
+ 5.4 Allow SAN names in HTTP/2 server push
+ 5.5 auth= in URLs
+ 5.6 alt-svc should fallback if alt-svc does not work
+ 5.7 Require HTTP version X or higher
+
+ 6. TELNET
+ 6.1 ditch stdin
+ 6.2 ditch telnet-specific select
+ 6.3 feature negotiation debug data
+ 6.4 exit immediately upon connection if stdin is /dev/null
+
+ 7. SMTP
+ 7.1 Passing NOTIFY option to CURLOPT_MAIL_RCPT
+ 7.2 Enhanced capability support
+ 7.3 Add CURLOPT_MAIL_CLIENT option
+
+ 8. POP3
+ 8.2 Enhanced capability support
+
+ 9. IMAP
+ 9.1 Enhanced capability support
+
+ 10. LDAP
+ 10.1 SASL based authentication mechanisms
+ 10.2 CURLOPT_SSL_CTX_FUNCTION for LDAPS
+ 10.3 Paged searches on LDAP server
+
+ 11. SMB
+ 11.1 File listing support
+ 11.2 Honor file timestamps
+ 11.3 Use NTLMv2
+ 11.4 Create remote directories
+
+ 12. FILE
+ 12.1 Directory listing for FILE:
+
+ 13. TLS
+ 13.1 TLS-PSK with OpenSSL
+ 13.2 Provide mutex locking API
+ 13.3 Defeat TLS fingerprinting
+ 13.4 Cache/share OpenSSL contexts
+ 13.5 Export session ids
+ 13.6 Provide callback for cert verification
+ 13.7 Less memory massaging with Schannel
+ 13.8 Support DANE
+ 13.9 TLS record padding
+ 13.10 Support Authority Information Access certificate extension (AIA)
+ 13.11 Support intermediate & root pinning for PINNEDPUBLICKEY
+ 13.13 Make sure we forbid TLS 1.3 post-handshake authentication
+ 13.14 Support the clienthello extension
+
+ 14. GnuTLS
+ 14.2 check connection
+
+ 15. Schannel
+ 15.1 Extend support for client certificate authentication
+ 15.2 Extend support for the --ciphers option
+ 15.4 Add option to allow abrupt server closure
+
+ 16. SASL
+ 16.1 Other authentication mechanisms
+ 16.2 Add QOP support to GSSAPI authentication
+
+ 17. SSH protocols
+ 17.1 Multiplexing
+ 17.2 Handle growing SFTP files
+ 17.3 Read keys from ~/.ssh/id_ecdsa, id_ed25519
+ 17.4 Support CURLOPT_PREQUOTE
+ 17.5 SSH over HTTPS proxy with more backends
+ 17.6 SFTP with SCP://
+
+ 18. Command line tool
+ 18.1 sync
+ 18.2 glob posts
+ 18.4 --proxycommand
+ 18.5 UTF-8 filenames in Content-Disposition
+ 18.6 Option to make -Z merge lined based outputs on stdout
+ 18.7 at least N milliseconds between requests
+ 18.8 Consider convenience options for JSON and XML?
+ 18.9 Choose the name of file in braces for complex URLs
+ 18.10 improve how curl works in a windows console window
+ 18.11 Windows: set attribute 'archive' for completed downloads
+ 18.12 keep running, read instructions from pipe/socket
+ 18.13 Ratelimit or wait between serial requests
+ 18.14 --dry-run
+ 18.15 --retry should resume
+ 18.16 send only part of --data
+ 18.17 consider file name from the redirected URL with -O ?
+ 18.18 retry on network is unreachable
+ 18.19 expand ~/ in config files
+ 18.20 host name sections in config files
+ 18.21 retry on the redirected-to URL
+ 18.23 Set the modification date on an uploaded file
+ 18.24 Use multiple parallel transfers for a single download
+ 18.25 Prevent terminal injection when writing to terminal
+ 18.26 Custom progress meter update interval
+
+ 19. Build
+ 19.1 roffit
+ 19.2 Enable PIE and RELRO by default
+ 19.3 Do not use GNU libtool on OpenBSD
+ 19.4 Package curl for Windows in a signed installer
+ 19.5 make configure use --cache-file more and better
+
+ 20. Test suite
+ 20.1 SSL tunnel
+ 20.2 nicer lacking perl message
+ 20.3 more protocols supported
+ 20.4 more platforms supported
+ 20.5 Add support for concurrent connections
+ 20.6 Use the RFC6265 test suite
+ 20.7 Support LD_PRELOAD on macOS
+ 20.8 Run web-platform-tests URL tests
+
+ 21. MQTT
+ 21.1 Support rate-limiting
+
+==============================================================================
+
+1. libcurl
+
+1.1 TFO support on Windows
+
+ libcurl supports the CURLOPT_TCP_FASTOPEN option since 7.49.0 for Linux and
+ Mac OS. Windows supports TCP Fast Open starting with Windows 10, version 1607
+ and we should add support for it.
+
+ TCP Fast Open is supported on several platforms but not on Windows. Work on
+ this was once started but never finished.
+
+ See https://github.com/curl/curl/pull/3378
+
+1.2 Consult %APPDATA% also for .netrc
+
+ %APPDATA%\.netrc is not considered when running on Windows. should not it?
+
+ See https://github.com/curl/curl/issues/4016
+
+1.3 struct lifreq
+
+ Use 'struct lifreq' and SIOCGLIFADDR instead of 'struct ifreq' and
+ SIOCGIFADDR on newer Solaris versions as they claim the latter is obsolete.
+ To support IPv6 interface addresses for network interfaces properly.
+
+1.4 alt-svc sharing
+
+ The share interface could benefit from allowing the alt-svc cache to be
+ possible to share between easy handles.
+
+ See https://github.com/curl/curl/issues/4476
+
+1.5 get rid of PATH_MAX
+
+ Having code use and rely on PATH_MAX is not nice:
+ https://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html
+
+ Currently the libssh2 SSH based code uses it, but to remove PATH_MAX from
+ there we need libssh2 to properly tell us when we pass in a too small buffer
+ and its current API (as of libssh2 1.2.7) does not.
+
+1.6 native IDN support on macOS
+
+ On recent macOS versions, the getaddrinfo() function itself has built-in IDN
+ support. By setting the AI_CANONNAME flag, the function will return the
+ encoded name in the ai_canonname struct field in the returned information.
+ This could be used by curl on macOS when built without a separate IDN library
+ and an IDN host name is used in a URL.
+
+ See initial work in https://github.com/curl/curl/pull/5371
+
+1.7 Support HTTP/2 for HTTP(S) proxies
+
+ Support for doing HTTP/2 to HTTP and HTTPS proxies is still missing.
+
+ See https://github.com/curl/curl/issues/3570
+
+1.8 CURLOPT_RESOLVE for any port number
+
+ This option allows applications to set a replacement IP address for a given
+ host + port pair. Consider making support for providing a replacement address
+ for the host name on all port numbers.
+
+ See https://github.com/curl/curl/issues/1264
+
+1.9 Cache negative name resolves
+
+ A name resolve that has failed is likely to fail when made again within a
+ short period of time. Currently we only cache positive responses.
+
+1.10 auto-detect proxy
+
+ libcurl could be made to detect the system proxy setup automatically and use
+ that. On Windows, macOS and Linux desktops for example.
+
+ The pull-request to use libproxy for this was deferred due to doubts on the
+ reliability of the dependency and how to use it:
+ https://github.com/curl/curl/pull/977
+
+ libdetectproxy is a (C++) library for detecting the proxy on Windows
+ https://github.com/paulharris/libdetectproxy
+
+1.11 minimize dependencies with dynamically loaded modules
+
+ We can create a system with loadable modules/plug-ins, where these modules
+ would be the ones that link to 3rd party libs. That would allow us to avoid
+ having to load ALL dependencies since only the necessary ones for this
+ app/invoke/used protocols would be necessary to load. See
+ https://github.com/curl/curl/issues/349
+
+1.12 updated DNS server while running
+
+ If /etc/resolv.conf gets updated while a program using libcurl is running, it
+ is may cause name resolves to fail unless res_init() is called. We should
+ consider calling res_init() + retry once unconditionally on all name resolve
+ failures to mitigate against this. Firefox works like that. Note that Windows
+ does not have res_init() or an alternative.
+
+ https://github.com/curl/curl/issues/2251
+
+1.13 c-ares and CURLOPT_OPENSOCKETFUNCTION
+
+ curl will create most sockets via the CURLOPT_OPENSOCKETFUNCTION callback and
+ close them with the CURLOPT_CLOSESOCKETFUNCTION callback. However, c-ares
+ does not use those functions and instead opens and closes the sockets
+ itself. This means that when curl passes the c-ares socket to the
+ CURLMOPT_SOCKETFUNCTION it is not owned by the application like other sockets.
+
+ See https://github.com/curl/curl/issues/2734
+
+1.15 Monitor connections in the connection pool
+
+ libcurl's connection cache or pool holds a number of open connections for the
+ purpose of possible subsequent connection reuse. It may contain a few up to a
+ significant amount of connections. Currently, libcurl leaves all connections
+ as they are and first when a connection is iterated over for matching or
+ reuse purpose it is verified that it is still alive.
+
+ Those connections may get closed by the server side for idleness or they may
+ get an HTTP/2 ping from the peer to verify that they are still alive. By
+ adding monitoring of the connections while in the pool, libcurl can detect
+ dead connections (and close them) better and earlier, and it can handle
+ HTTP/2 pings to keep such ones alive even when not actively doing transfers
+ on them.
+
+1.16 Try to URL encode given URL
+
+ Given a URL that for example contains spaces, libcurl could have an option
+ that would try somewhat harder than it does now and convert spaces to %20 and
+ perhaps URL encoded byte values over 128 etc (basically do what the redirect
+ following code already does).
+
+ https://github.com/curl/curl/issues/514
+
+1.17 Add support for IRIs
+
+ IRIs (RFC 3987) allow localized, non-ascii, names in the URL. To properly
+ support this, curl/libcurl would need to translate/encode the given input
+ from the input string encoding into percent encoded output "over the wire".
+
+ To make that work smoothly for curl users even on Windows, curl would
+ probably need to be able to convert from several input encodings.
+
+1.18 try next proxy if one does not work
+
+ Allow an application to specify a list of proxies to try, and failing to
+ connect to the first go on and try the next instead until the list is
+ exhausted. Browsers support this feature at least when they specify proxies
+ using PACs.
+
+ https://github.com/curl/curl/issues/896
+
+1.19 provide timing info for each redirect
+
+ curl and libcurl provide timing information via a set of different
+ time-stamps (CURLINFO_*_TIME). When curl is following redirects, those
+ returned time value are the accumulated sums. An improvement could be to
+ offer separate timings for each redirect.
+
+ https://github.com/curl/curl/issues/6743
+
+1.20 SRV and URI DNS records
+
+ Offer support for resolving SRV and URI DNS records for libcurl to know which
+ server to connect to for various protocols (including HTTP).
+
+1.21 netrc caching and sharing
+
+ The netrc file is read and parsed each time a connection is setup, which
+ means that if a transfer needs multiple connections for authentication or
+ redirects, the file might be reread (and parsed) multiple times. This makes
+ it impossible to provide the file as a pipe.
+
+1.22 CURLINFO_PAUSE_STATE
+
+ Return information about the transfer's current pause state, in both
+ directions. https://github.com/curl/curl/issues/2588
+
+1.23 Offer API to flush the connection pool
+
+ Sometimes applications want to flush all the existing connections kept alive.
+ An API could allow a forced flush or just a forced loop that would properly
+ close all connections that have been closed by the server already.
+
+1.25 Expose tried IP addresses that failed
+
+ When libcurl fails to connect to a host, it could offer the application the
+ addresses that were used in the attempt. Source + dest IP, source + dest port
+ and protocol (UDP or TCP) for each failure. Possibly as a callback. Perhaps
+ also provide "reason".
+
+ https://github.com/curl/curl/issues/2126
+
+1.28 FD_CLOEXEC
+
+ It sets the close-on-exec flag for the file descriptor, which causes the file
+ descriptor to be automatically (and atomically) closed when any of the
+ exec-family functions succeed. Should probably be set by default?
+
+ https://github.com/curl/curl/issues/2252
+
+1.29 Upgrade to websockets
+
+ libcurl could offer a smoother path to get to a websocket connection.
+ See https://github.com/curl/curl/issues/3523
+
+ Michael Kaufmann suggestion here:
+ https://curl.se/video/curlup-2017/2017-03-19_05_Michael_Kaufmann_Websocket_support_for_curl.mp4
+
+1.30 config file parsing
+
+ Consider providing an API, possibly in a separate companion library, for
+ parsing a config file like curl's -K/--config option to allow applications to
+ get the same ability to read curl options from files.
+
+ See https://github.com/curl/curl/issues/3698
+
+1.31 erase secrets from heap/stack after use
+
+ Introducing a concept and system to erase secrets from memory after use, it
+ could help mitigate and lessen the impact of (future) security problems etc.
+ However: most secrets are passed to libcurl as clear text from the
+ application and then clearing them within the library adds nothing...
+
+ https://github.com/curl/curl/issues/7268
+
+1.32 add asynch getaddrinfo support
+
+ Use getaddrinfo_a() to provide an asynch name resolver backend to libcurl
+ that does not use threads and does not depend on c-ares. The getaddrinfo_a
+ function is (probably?) glibc specific but that is a widely used libc among
+ our users.
+
+ https://github.com/curl/curl/pull/6746
+
+2. libcurl - multi interface
+
+2.1 More non-blocking
+
+ Make sure we do not ever loop because of non-blocking sockets returning
+ EWOULDBLOCK or similar. Blocking cases include:
+
+ - Name resolves on non-windows unless c-ares or the threaded resolver is used.
+
+ - The threaded resolver may block on cleanup:
+ https://github.com/curl/curl/issues/4852
+
+ - file:// transfers
+
+ - TELNET transfers
+
+ - GSSAPI authentication for FTP transfers
+
+ - The "DONE" operation (post transfer protocol-specific actions) for the
+ protocols SFTP, SMTP, FTP. Fixing multi_done() for this is a worthy task.
+
+ - curl_multi_remove_handle for any of the above. See section 2.3.
+
+2.2 Better support for same name resolves
+
+ If a name resolve has been initiated for name NN and a second easy handle
+ wants to resolve that name as well, make it wait for the first resolve to end
+ up in the cache instead of doing a second separate resolve. This is
+ especially needed when adding many simultaneous handles using the same host
+ name when the DNS resolver can get flooded.
+
+2.3 Non-blocking curl_multi_remove_handle()
+
+ The multi interface has a few API calls that assume a blocking behavior, like
+ add_handle() and remove_handle() which limits what we can do internally. The
+ multi API need to be moved even more into a single function that "drives"
+ everything in a non-blocking manner and signals when something is done. A
+ remove or add would then only ask for the action to get started and then
+ multi_perform() etc still be called until the add/remove is completed.
+
+2.4 Split connect and authentication process
+
+ The multi interface treats the authentication process as part of the connect
+ phase. As such any failures during authentication will not trigger the relevant
+ QUIT or LOGOFF for protocols such as IMAP, POP3 and SMTP.
+
+2.5 Edge-triggered sockets should work
+
+ The multi_socket API should work with edge-triggered socket events. One of
+ the internal actions that need to be improved for this to work perfectly is
+ the 'maxloops' handling in transfer.c:readwrite_data().
+
+2.6 multi upkeep
+
+ In libcurl 7.62.0 we introduced curl_easy_upkeep. It unfortunately only works
+ on easy handles. We should introduces a version of that for the multi handle,
+ and also consider doing "upkeep" automatically on connections in the
+ connection pool when the multi handle is in used.
+
+ See https://github.com/curl/curl/issues/3199
+
+2.7 Virtual external sockets
+
+ libcurl performs operations on the given file descriptor that presumes it is
+ a socket and an application cannot replace them at the moment. Allowing an
+ application to fully replace those would allow a larger degree of freedom and
+ flexibility.
+
+ See https://github.com/curl/curl/issues/5835
+
+2.8 dynamically decide to use socketpair
+
+ For users who do not use curl_multi_wait() or do not care for
+ curl_multi_wakeup(), we could introduce a way to make libcurl NOT
+ create a socketpair in the multi handle.
+
+ See https://github.com/curl/curl/issues/4829
+
+3. Documentation
+
+3.1 Improve documentation about fork safety
+
+ See https://github.com/curl/curl/issues/6968
+
+3.2 Provide cmake config-file
+
+ A config-file package is a set of files provided by us to allow applications
+ to write cmake scripts to find and use libcurl easier. See
+ https://github.com/curl/curl/issues/885
+
+4. FTP
+
+4.1 HOST
+
+ HOST is a command for a client to tell which host name to use, to offer FTP
+ servers named-based virtual hosting:
+
+ https://datatracker.ietf.org/doc/html/rfc7151
+
+4.2 Alter passive/active on failure and retry
+
+ When trying to connect passively to a server which only supports active
+ connections, libcurl returns CURLE_FTP_WEIRD_PASV_REPLY and closes the
+ connection. There could be a way to fallback to an active connection (and
+ vice versa). https://curl.se/bug/feature.cgi?id=1754793
+
+4.3 Earlier bad letter detection
+
+ Make the detection of (bad) %0d and %0a codes in FTP URL parts earlier in the
+ process to avoid doing a resolve and connect in vain.
+
+4.4 Support CURLOPT_PREQUOTE for dir listings too
+
+ The lack of support is mostly an oversight and requires the FTP state machine
+ to get updated to get fixed.
+
+ https://github.com/curl/curl/issues/8602
+
+4.5 ASCII support
+
+ FTP ASCII transfers do not follow RFC959. They do not convert the data
+ accordingly.
+
+4.6 GSSAPI via Windows SSPI
+
+ In addition to currently supporting the SASL GSSAPI mechanism (Kerberos V5)
+ via third-party GSS-API libraries, such as Heimdal or MIT Kerberos, also add
+ support for GSSAPI authentication via Windows SSPI.
+
+4.7 STAT for LIST without data connection
+
+ Some FTP servers allow STAT for listing directories instead of using LIST,
+ and the response is then sent over the control connection instead of as the
+ otherwise usedw data connection: https://www.nsftools.com/tips/RawFTP.htm#STAT
+
+ This is not detailed in any FTP specification.
+
+5. HTTP
+
+5.2 Set custom client ip when using haproxy protocol
+
+ This would allow testing servers with different client ip addresses (without
+ using x-forward-for header).
+
+ https://github.com/curl/curl/issues/5125
+
+5.3 Rearrange request header order
+
+ Server implementors often make an effort to detect browser and to reject
+ clients it can detect to not match. One of the last details we cannot yet
+ control in libcurl's HTTP requests, which also can be exploited to detect
+ that libcurl is in fact used even when it tries to impersonate a browser, is
+ the order of the request headers. I propose that we introduce a new option in
+ which you give headers a value, and then when the HTTP request is built it
+ sorts the headers based on that number. We could then have internally created
+ headers use a default value so only headers that need to be moved have to be
+ specified.
+
+5.4 Allow SAN names in HTTP/2 server push
+
+ curl only allows HTTP/2 push promise if the provided :authority header value
+ exactly matches the host name given in the URL. It could be extended to allow
+ any name that would match the Subject Alternative Names in the server's TLS
+ certificate.
+
+ See https://github.com/curl/curl/pull/3581
+
+5.5 auth= in URLs
+
+ Add the ability to specify the preferred authentication mechanism to use by
+ using ;auth= in the login part of the URL.
+
+ For example:
+
+ http://test:pass;auth=NTLM@example.com would be equivalent to specifying
+ --user test:pass;auth=NTLM or --user test:pass --ntlm from the command line.
+
+ Additionally this should be implemented for proxy base URLs as well.
+
+5.6 alt-svc should fallback if alt-svc does not work
+
+ The alt-svc: header provides a set of alternative services for curl to use
+ instead of the original. If the first attempted one fails, it should try the
+ next etc and if all alternatives fail go back to the original.
+
+ See https://github.com/curl/curl/issues/4908
+
+5.7 Require HTTP version X or higher
+
+ curl and libcurl provide options for trying higher HTTP versions (for example
+ HTTP/2) but then still allows the server to pick version 1.1. We could
+ consider adding a way to require a minimum version.
+
+ See https://github.com/curl/curl/issues/7980
+
+6. TELNET
+
+6.1 ditch stdin
+
+ Reading input (to send to the remote server) on stdin is a crappy solution
+ for library purposes. We need to invent a good way for the application to be
+ able to provide the data to send.
+
+6.2 ditch telnet-specific select
+
+ Move the telnet support's network select() loop go away and merge the code
+ into the main transfer loop. Until this is done, the multi interface will not
+ work for telnet.
+
+6.3 feature negotiation debug data
+
+ Add telnet feature negotiation data to the debug callback as header data.
+
+6.4 exit immediately upon connection if stdin is /dev/null
+
+ If it did, curl could be used to probe if there's an server there listening
+ on a specific port. That is, the following command would exit immediately
+ after the connection is established with exit code 0:
+
+    curl -s --connect-timeout 2 telnet://example.com:80  NOTIFY=SUCCESS,FAILURE" );
+
+ https://github.com/curl/curl/issues/8232
+
+7.2 Enhanced capability support
+
+ Add the ability, for an application that uses libcurl, to obtain the list of
+ capabilities returned from the EHLO command.
+
+7.3 Add CURLOPT_MAIL_CLIENT option
+
+ Rather than use the URL to specify the mail client string to present in the
+ HELO and EHLO commands, libcurl should support a new CURLOPT specifically for
+ specifying this data as the URL is non-standard and to be honest a bit of a
+ hack ;-)
+
+ Please see the following thread for more information:
+ https://curl.se/mail/lib-2012-05/0178.html
+
+
+8. POP3
+
+8.2 Enhanced capability support
+
+ Add the ability, for an application that uses libcurl, to obtain the list of
+ capabilities returned from the CAPA command.
+
+9. IMAP
+
+9.1 Enhanced capability support
+
+ Add the ability, for an application that uses libcurl, to obtain the list of
+ capabilities returned from the CAPABILITY command.
+
+10. LDAP
+
+10.1 SASL based authentication mechanisms
+
+ Currently the LDAP module only supports ldap_simple_bind_s() in order to bind
+ to an LDAP server. However, this function sends username and password details
+ using the simple authentication mechanism (as clear text). However, it should
+ be possible to use ldap_bind_s() instead specifying the security context
+ information ourselves.
+
+10.2 CURLOPT_SSL_CTX_FUNCTION for LDAPS
+
+ CURLOPT_SSL_CTX_FUNCTION works perfectly for HTTPS and email protocols, but
+ it has no effect for LDAPS connections.
+
+ https://github.com/curl/curl/issues/4108
+
+10.3 Paged searches on LDAP server
+
+ https://github.com/curl/curl/issues/4452
+
+11. SMB
+
+11.1 File listing support
+
+ Add support for listing the contents of a SMB share. The output should
+ probably be the same as/similar to FTP.
+
+11.2 Honor file timestamps
+
+ The timestamp of the transferred file should reflect that of the original
+ file.
+
+11.3 Use NTLMv2
+
+ Currently the SMB authentication uses NTLMv1.
+
+11.4 Create remote directories
+
+ Support for creating remote directories when uploading a file to a directory
+ that does not exist on the server, just like --ftp-create-dirs.
+
+
+12. FILE
+
+12.1 Directory listing for FILE:
+
+ Add support for listing the contents of a directory accessed with FILE. The
+ output should probably be the same as/similar to FTP.
+
+
+13. TLS
+
+13.1 TLS-PSK with OpenSSL
+
+ Transport Layer Security pre-shared key ciphersuites (TLS-PSK) is a set of
+ cryptographic protocols that provide secure communication based on pre-shared
+ keys (PSKs). These pre-shared keys are symmetric keys shared in advance among
+ the communicating parties.
+
+ https://github.com/curl/curl/issues/5081
+
+13.2 Provide mutex locking API
+
+ Provide a libcurl API for setting mutex callbacks in the underlying SSL
+ library, so that the same application code can use mutex-locking
+ independently of OpenSSL or GnutTLS being used.
+
+13.3 Defeat TLS fingerprinting
+
+ By changing the order of TLS extensions provided in the TLS handshake, it is
+ sometimes possible to circumvent TLS fingerprinting by servers. The TLS
+ extension order is of course not the only way to fingerprint a client.
+
+ See https://github.com/curl/curl/issues/8119
+
+13.4 Cache/share OpenSSL contexts
+
+ "Look at SSL cafile - quick traces look to me like these are done on every
+ request as well, when they should only be necessary once per SSL context (or
+ once per handle)". The major improvement we can rather easily do is to make
+ sure we do not create and kill a new SSL "context" for every request, but
+ instead make one for every connection and re-use that SSL context in the same
+ style connections are re-used. It will make us use slightly more memory but
+ it will libcurl do less creations and deletions of SSL contexts.
+
+ Technically, the "caching" is probably best implemented by getting added to
+ the share interface so that easy handles who want to and can reuse the
+ context specify that by sharing with the right properties set.
+
+ https://github.com/curl/curl/issues/1110
+
+13.5 Export session ids
+
+ Add an interface to libcurl that enables "session IDs" to get
+ exported/imported. Cris Bailiff said: "OpenSSL has functions which can
+ serialise the current SSL state to a buffer of your choice, and recover/reset
+ the state from such a buffer at a later date - this is used by mod_ssl for
+ apache to implement and SSL session ID cache".
+
+13.6 Provide callback for cert verification
+
+ OpenSSL supports a callback for customised verification of the peer
+ certificate, but this does not seem to be exposed in the libcurl APIs. Could
+ it be? There's so much that could be done if it were.
+
+13.7 Less memory massaging with Schannel
+
+ The Schannel backend does a lot of custom memory management we would rather
+ avoid: the repeated alloc + free in sends and the custom memory + realloc
+ system for encrypted and decrypted data. That should be avoided and reduced
+ for 1) efficiency and 2) safety.
+
+13.8 Support DANE
+
+ DNS-Based Authentication of Named Entities (DANE) is a way to provide SSL
+ keys and certs over DNS using DNSSEC as an alternative to the CA model.
+ https://www.rfc-editor.org/rfc/rfc6698.txt
+
+ An initial patch was posted by Suresh Krishnaswamy on March 7th 2013
+ (https://curl.se/mail/lib-2013-03/0075.html) but it was a too simple
+ approach. See Daniel's comments:
+ https://curl.se/mail/lib-2013-03/0103.html . libunbound may be the
+ correct library to base this development on.
+
+ Björn Stenberg wrote a separate initial take on DANE that was never
+ completed.
+
+13.9 TLS record padding
+
+ TLS (1.3) offers optional record padding and OpenSSL provides an API for it.
+ I could make sense for libcurl to offer this ability to applications to make
+ traffic patterns harder to figure out by network traffic observers.
+
+ See https://github.com/curl/curl/issues/5398
+
+13.10 Support Authority Information Access certificate extension (AIA)
+
+ AIA can provide various things like CRLs but more importantly information
+ about intermediate CA certificates that can allow validation path to be
+ fulfilled when the HTTPS server does not itself provide them.
+
+ Since AIA is about downloading certs on demand to complete a TLS handshake,
+ it is probably a bit tricky to get done right.
+
+ See https://github.com/curl/curl/issues/2793
+
+13.11 Support intermediate & root pinning for PINNEDPUBLICKEY
+
+ CURLOPT_PINNEDPUBLICKEY does not consider the hashes of intermediate & root
+ certificates when comparing the pinned keys. Therefore it is not compatible
+ with "HTTP Public Key Pinning" as there also intermediate and root
+ certificates can be pinned. This is useful as it prevents webadmins from
+ "locking themselves out of their servers".
+
+ Adding this feature would make curls pinning 100% compatible to HPKP and
+ allow more flexible pinning.
+
+13.13 Make sure we forbid TLS 1.3 post-handshake authentication
+
+ RFC 8740 explains how using HTTP/2 must forbid the use of TLS 1.3
+ post-handshake authentication. We should make sure to live up to that.
+
+ See https://github.com/curl/curl/issues/5396
+
+13.14 Support the clienthello extension
+
+ Certain stupid networks and middle boxes have a problem with SSL handshake
+ packets that are within a certain size range because how that sets some bits
+ that previously (in older TLS version) were not set. The clienthello
+ extension adds padding to avoid that size range.
+
+ https://datatracker.ietf.org/doc/html/rfc7685
+ https://github.com/curl/curl/issues/2299
+
+14. GnuTLS
+
+14.2 check connection
+
+ Add a way to check if the connection seems to be alive, to correspond to the
+ SSL_peak() way we use with OpenSSL.
+
+15. Schannel
+
+15.1 Extend support for client certificate authentication
+
+ The existing support for the -E/--cert and --key options could be
+ extended by supplying a custom certificate and key in PEM format, see:
+ - Getting a Certificate for Schannel
+   https://msdn.microsoft.com/en-us/library/windows/desktop/aa375447.aspx
+
+15.2 Extend support for the --ciphers option
+
+ The existing support for the --ciphers option could be extended
+ by mapping the OpenSSL/GnuTLS cipher suites to the Schannel APIs, see
+ - Specifying Schannel Ciphers and Cipher Strengths
+   https://msdn.microsoft.com/en-us/library/windows/desktop/aa380161.aspx
+
+15.4 Add option to allow abrupt server closure
+
+ libcurl w/schannel will error without a known termination point from the
+ server (such as length of transfer, or SSL "close notify" alert) to prevent
+ against a truncation attack. Really old servers may neglect to send any
+ termination point. An option could be added to ignore such abrupt closures.
+
+ https://github.com/curl/curl/issues/4427
+
+16. SASL
+
+16.1 Other authentication mechanisms
+
+ Add support for other authentication mechanisms such as OLP,
+ GSS-SPNEGO and others.
+
+16.2 Add QOP support to GSSAPI authentication
+
+ Currently the GSSAPI authentication only supports the default QOP of auth
+ (Authentication), whilst Kerberos V5 supports both auth-int (Authentication
+ with integrity protection) and auth-conf (Authentication with integrity and
+ privacy protection).
+
+
+17. SSH protocols
+
+17.1 Multiplexing
+
+ SSH is a perfectly fine multiplexed protocols which would allow libcurl to do
+ multiple parallel transfers from the same host using the same connection,
+ much in the same spirit as HTTP/2 does. libcurl however does not take
+ advantage of that ability but will instead always create a new connection for
+ new transfers even if an existing connection already exists to the host.
+
+ To fix this, libcurl would have to detect an existing connection and "attach"
+ the new transfer to the existing one.
+
+17.2 Handle growing SFTP files
+
+ The SFTP code in libcurl checks the file size *before* a transfer starts and
+ then proceeds to transfer exactly that amount of data. If the remote file
+ grows while the transfer is in progress libcurl will not notice and will not
+ adapt. The OpenSSH SFTP command line tool does and libcurl could also just
+ attempt to download more to see if there is more to get...
+
+ https://github.com/curl/curl/issues/4344
+
+17.3 Read keys from ~/.ssh/id_ecdsa, id_ed25519
+
+ The libssh2 backend in curl is limited to only reading keys from id_rsa and
+ id_dsa, which makes it fail connecting to servers that use more modern key
+ types.
+
+ https://github.com/curl/curl/issues/8586
+
+17.4 Support CURLOPT_PREQUOTE
+
+ The two other QUOTE options are supported for SFTP, but this was left out for
+ unknown reasons.
+
+17.5 SSH over HTTPS proxy with more backends
+
+ The SSH based protocols SFTP and SCP did not work over HTTPS proxy at
+ all until PR https://github.com/curl/curl/pull/6021 brought the
+ functionality with the libssh2 backend. Presumably, this support
+ can/could be added for the other backends as well.
+
+17.6 SFTP with SCP://
+
+ OpenSSH 9 switched their 'scp' tool to speak SFTP under the hood. Going
+ forward it might be worth having curl or libcurl attempt SFTP if SCP fails to
+ follow suite.
+
+18. Command line tool
+
+18.1 sync
+
+ "curl --sync http://example.com/feed[1-100].rss" or
+ "curl --sync http://example.net/{index,calendar,history}.html"
+
+ Downloads a range or set of URLs using the remote name, but only if the
+ remote file is newer than the local file. A Last-Modified HTTP date header
+ should also be used to set the mod date on the downloaded file.
+
+18.2 glob posts
+
+ Globbing support for -d and -F, as in 'curl -d "name=foo[0-9]" URL'.
+ This is easily scripted though.
+
+18.4 --proxycommand
+
+ Allow the user to make curl run a command and use its stdio to make requests
+ and not do any network connection by itself. Example:
+
+   curl --proxycommand 'ssh pi@raspberrypi.local -W 10.1.1.75 80' \
+        http://some/otherwise/unavailable/service.php
+
+ See https://github.com/curl/curl/issues/4941
+
+18.5 UTF-8 filenames in Content-Disposition
+
+ RFC 6266 documents how UTF-8 names can be passed to a client in the
+ Content-Disposition header, and curl does not support this.
+
+ https://github.com/curl/curl/issues/1888
+
+18.6 Option to make -Z merge lined based outputs on stdout
+
+ When a user requests multiple lined based files using -Z and sends them to
+ stdout, curl will not "merge" and send complete lines fine but may send
+ partial lines from several sources.
+
+ https://github.com/curl/curl/issues/5175
+
+18.7 at least N milliseconds between requests
+
+ Allow curl command lines issue a lot of request against services that limit
+ users to no more than N requests/second or similar. Could be implemented with
+ an option asking that at least a certain time has elapsed since the previous
+ request before the next one will be performed. Example:
+
+    $ curl "https://example.com/api?input=[1-1000]" -d yadayada --after 500
+
+ See https://github.com/curl/curl/issues/3920
+
+18.8 Consider convenience options for JSON and XML?
+
+ Could we add `--xml` or `--json` to add headers needed to call rest API:
+
+ `--xml` adds -H 'Content-Type: application/xml' -H "Accept: application/xml" and
+ `--json` adds -H 'Content-Type: application/json' -H "Accept: application/json"
+
+ Setting Content-Type when doing a GET or any other method without a body
+ would be a bit strange I think - so maybe only add CT for requests with body?
+ Maybe plain `--xml` and ` --json` are a bit too brief and generic. Maybe
+ `--http-json` etc?
+
+ See https://github.com/curl/curl/issues/5203
+
+18.9 Choose the name of file in braces for complex URLs
+
+ When using braces to download a list of URLs and you use complicated names
+ in the list of alternatives, it could be handy to allow curl to use other
+ names when saving.
+
+ Consider a way to offer that. Possibly like
+ {partURL1:name1,partURL2:name2,partURL3:name3} where the name following the
+ colon is the output name.
+
+ See https://github.com/curl/curl/issues/221
+
+18.10 improve how curl works in a windows console window
+
+ If you pull the scrollbar when transferring with curl in a Windows console
+ window, the transfer is interrupted and can get disconnected. This can
+ probably be improved. See https://github.com/curl/curl/issues/322
+
+18.11 Windows: set attribute 'archive' for completed downloads
+
+ The archive bit (FILE_ATTRIBUTE_ARCHIVE, 0x20) separates files that shall be
+ backed up from those that are either not ready or have not changed.
+
+ Downloads in progress are neither ready to be backed up, nor should they be
+ opened by a different process. Only after a download has been completed it's
+ sensible to include it in any integer snapshot or backup of the system.
+
+ See https://github.com/curl/curl/issues/3354
+
+18.12 keep running, read instructions from pipe/socket
+
+ Provide an option that makes curl not exit after the last URL (or even work
+ without a given URL), and then make it read instructions passed on a pipe or
+ over a socket to make further instructions so that a second subsequent curl
+ invoke can talk to the still running instance and ask for transfers to get
+ done, and thus maintain its connection pool, DNS cache and more.
+
+18.13 Ratelimit or wait between serial requests
+
+ Consider a command line option that can make curl do multiple serial requests
+ slow, potentially with a (random) wait between transfers. There's also a
+ proposed set of standard HTTP headers to let servers let the client adapt to
+ its rate limits:
+ https://www.ietf.org/id/draft-polli-ratelimit-headers-02.html
+
+ See https://github.com/curl/curl/issues/5406
+
+18.14 --dry-run
+
+ A command line option that makes curl show exactly what it would do and send
+ if it would run for real.
+
+ See https://github.com/curl/curl/issues/5426
+
+18.15 --retry should resume
+
+ When --retry is used and curl actually retries transfer, it should use the
+ already transferred data and do a resumed transfer for the rest (when
+ possible) so that it does not have to transfer the same data again that was
+ already transferred before the retry.
+
+ See https://github.com/curl/curl/issues/1084
+
+18.16 send only part of --data
+
+ When the user only wants to send a small piece of the data provided with
+ --data or --data-binary, like when that data is a huge file, consider a way
+ to specify that curl should only send a piece of that. One suggested syntax
+ would be: "--data-binary @largefile.zip!1073741823-2147483647".
+
+ See https://github.com/curl/curl/issues/1200
+
+18.17 consider file name from the redirected URL with -O ?
+
+ When a user gives a URL and uses -O, and curl follows a redirect to a new
+ URL, the file name is not extracted and used from the newly redirected-to URL
+ even if the new URL may have a much more sensible file name.
+
+ This is clearly documented and helps for security since there's no surprise
+ to users which file name that might get overwritten. But maybe a new option
+ could allow for this or maybe -J should imply such a treatment as well as -J
+ already allows for the server to decide what file name to use so it already
+ provides the "may overwrite any file" risk.
+
+ This is extra tricky if the original URL has no file name part at all since
+ then the current code path will error out with an error message, and we cannot
+ *know* already at that point if curl will be redirected to a URL that has a
+ file name...
+
+ See https://github.com/curl/curl/issues/1241
+
+18.18 retry on network is unreachable
+
+ The --retry option retries transfers on "transient failures". We later added
+ --retry-connrefused to also retry for "connection refused" errors.
+
+ Suggestions have been brought to also allow retry on "network is unreachable"
+ errors and while totally reasonable, maybe we should consider a way to make
+ this more configurable than to add a new option for every new error people
+ want to retry for?
+
+ https://github.com/curl/curl/issues/1603
+
+18.19 expand ~/ in config files
+
+ For example .curlrc could benefit from being able to do this.
+
+ See https://github.com/curl/curl/issues/2317
+
+18.20 host name sections in config files
+
+ config files would be more powerful if they could set different
+ configurations depending on used URLs, host name or possibly origin. Then a
+ default .curlrc could a specific user-agent only when doing requests against
+ a certain site.
+
+18.21 retry on the redirected-to URL
+
+ When curl is told to --retry a failed transfer and follows redirects, it
+ might get an HTTP 429 response from the redirected-to URL and not the
+ original one, which then could make curl decide to rather retry the transfer
+ on that URL only instead of the original operation to the original URL.
+
+ Perhaps extra emphasized if the original transfer is a large POST that
+ redirects to a separate GET, and that GET is what gets the 529
+
+ See https://github.com/curl/curl/issues/5462
+
+18.23 Set the modification date on an uploaded file
+
+ For SFTP and possibly FTP, curl could offer an option to set the
+ modification time for the uploaded file.
+
+ See https://github.com/curl/curl/issues/5768
+
+18.24 Use multiple parallel transfers for a single download
+
+ To enhance transfer speed, downloading a single URL can be split up into
+ multiple separate range downloads that get combined into a single final
+ result.
+
+ An ideal implementation would not use a specified number of parallel
+ transfers, but curl could:
+ - First start getting the full file as transfer A
+ - If after N seconds have passed and the transfer is expected to continue for
+   M seconds or more, add a new transfer (B) that asks for the second half of
+   A's content (and stop A at the middle).
+ - If splitting up the work improves the transfer rate, it could then be done
+   again. Then again, etc up to a limit.
+
+ This way, if transfer B fails (because Range: is not supported) it will let
+ transfer A remain the single one. N and M could be set to some sensible
+ defaults.
+
+ See https://github.com/curl/curl/issues/5774
+
+18.25 Prevent terminal injection when writing to terminal
+
+ curl could offer an option to make escape sequence either non-functional or
+ avoid cursor moves or similar to reduce the risk of a user getting tricked by
+ clever tricks.
+
+ See https://github.com/curl/curl/issues/6150
+
+18.26 Custom progress meter update interval
+
+ Users who are for example doing large downloads in CI or remote setups might
+ want the occasional progress meter update to see that the transfer is
+ progressing and has not stuck, but they may not appreciate the
+ many-times-a-second frequency curl can end up doing it with now.
+
+19. Build
+
+19.1 roffit
+
+ Consider extending 'roffit' to produce decent ASCII output, and use that
+ instead of (g)nroff when building src/tool_hugehelp.c
+
+19.2 Enable PIE and RELRO by default
+
+ Especially when having programs that execute curl via the command line, PIE
+ renders the exploitation of memory corruption vulnerabilities a lot more
+ difficult. This can be attributed to the additional information leaks being
+ required to conduct a successful attack. RELRO, on the other hand, masks
+ different binary sections like the GOT as read-only and thus kills a handful
+ of techniques that come in handy when attackers are able to arbitrarily
+ overwrite memory. A few tests showed that enabling these features had close
+ to no impact, neither on the performance nor on the general functionality of
+ curl.
+
+19.3 Do not use GNU libtool on OpenBSD
+ When compiling curl on OpenBSD with "--enable-debug" it will give linking
+ errors when you use GNU libtool. This can be fixed by using the libtool
+ provided by OpenBSD itself. However for this the user always needs to invoke
+ make with "LIBTOOL=/usr/bin/libtool". It would be nice if the script could
+ have some magic to detect if this system is an OpenBSD host and then use the
+ OpenBSD libtool instead.
+
+ See https://github.com/curl/curl/issues/5862
+
+19.4 Package curl for Windows in a signed installer
+
+ See https://github.com/curl/curl/issues/5424
+
+19.5 make configure use --cache-file more and better
+
+ The configure script can be improved to cache more values so that repeated
+ invokes run much faster.
+
+ See https://github.com/curl/curl/issues/7753
+
+20. Test suite
+
+20.1 SSL tunnel
+
+ Make our own version of stunnel for simple port forwarding to enable HTTPS
+ and FTP-SSL tests without the stunnel dependency, and it could allow us to
+ provide test tools built with either OpenSSL or GnuTLS
+
+20.2 nicer lacking perl message
+
+ If perl was not found by the configure script, do not attempt to run the tests
+ but explain something nice why it does not.
+
+20.3 more protocols supported
+
+ Extend the test suite to include more protocols. The telnet could just do FTP
+ or http operations (for which we have test servers).
+
+20.4 more platforms supported
+
+ Make the test suite work on more platforms. OpenBSD and Mac OS. Remove
+ fork()s and it should become even more portable.
+
+20.5 Add support for concurrent connections
+
+ Tests 836, 882 and 938 were designed to verify that separate connections
+ are not used when using different login credentials in protocols that
+ should not re-use a connection under such circumstances.
+
+ Unfortunately, ftpserver.pl does not appear to support multiple concurrent
+ connections. The read while() loop seems to loop until it receives a
+ disconnect from the client, where it then enters the waiting for connections
+ loop. When the client opens a second connection to the server, the first
+ connection has not been dropped (unless it has been forced - which we
+ should not do in these tests) and thus the wait for connections loop is never
+ entered to receive the second connection.
+
+20.6 Use the RFC6265 test suite
+
+ A test suite made for HTTP cookies (RFC 6265) by Adam Barth is available at
+ https://github.com/abarth/http-state/tree/master/tests
+
+ It'd be really awesome if someone would write a script/setup that would run
+ curl with that test suite and detect deviances. Ideally, that would even be
+ incorporated into our regular test suite.
+
+20.7 Support LD_PRELOAD on macOS
+
+ LD_RELOAD does not work on macOS, but there are tests which require it to run
+ properly. Look into making the preload support in runtests.pl portable such
+ that it uses DYLD_INSERT_LIBRARIES on macOS.
+
+20.8 Run web-platform-tests URL tests
+
+ Run web-platform-tests URL tests and compare results with browsers on wpt.fyi
+
+ It would help us find issues to fix and help us document where our parser
+ differs from the WHATWG URL spec parsers.
+
+ See https://github.com/curl/curl/issues/4477
+
+21. MQTT
+
+21.1 Support rate-limiting
+
+ The rate-limiting logic is done in the PERFORMING state in multi.c but MQTT
+ is not (yet) implemented to use that.
diff --git a/curl/docs/TheArtOfHttpScripting.md b/curl/docs/TheArtOfHttpScripting.md
new file mode 100644
index 0000000..78dbd7a
--- /dev/null
+++ b/curl/docs/TheArtOfHttpScripting.md
@@ -0,0 +1,700 @@
+# The Art Of Scripting HTTP Requests Using Curl
+
+## Background
+
+ This document assumes that you are familiar with HTML and general networking.
+
+ The increasing amount of applications moving to the web has made "HTTP
+ Scripting" more frequently requested and wanted. To be able to automatically
+ extract information from the web, to fake users, to post or upload data to
+ web servers are all important tasks today.
+
+ Curl is a command line tool for doing all sorts of URL manipulations and
+ transfers, but this particular document will focus on how to use it when
+ doing HTTP requests for fun and profit. I will assume that you know how to
+ invoke `curl --help` or `curl --manual` to get basic information about it.
+
+ Curl is not written to do everything for you. It makes the requests, it gets
+ the data, it sends data and it retrieves the information. You probably need
+ to glue everything together using some kind of script language or repeated
+ manual invokes.
+
+## The HTTP Protocol
+
+ HTTP is the protocol used to fetch data from web servers. It is a simple
+ protocol that is built upon TCP/IP. The protocol also allows information to
+ get sent to the server from the client using a few different methods, as will
+ be shown here.
+
+ HTTP is plain ASCII text lines being sent by the client to a server to
+ request a particular action, and then the server replies a few text lines
+ before the actual requested content is sent to the client.
+
+ The client, curl, sends an HTTP request. The request contains a method (like
+ GET, POST, HEAD etc), a number of request headers and sometimes a request
+ body. The HTTP server responds with a status line (indicating if things went
+ well), response headers and most often also a response body. The "body" part
+ is the plain data you requested, like the actual HTML or the image etc.
+
+## See the Protocol
+
+ Using curl's option [`--verbose`](https://curl.se/docs/manpage.html#-v)
+ (`-v` as a short option) will display what kind of commands curl sends to the
+ server, as well as a few other informational texts.
+
+ `--verbose` is the single most useful option when it comes to debug or even
+ understand the curl<->server interaction.
+
+ Sometimes even `--verbose` is not enough. Then
+ [`--trace`](https://curl.se/docs/manpage.html#-trace) and
+ [`--trace-ascii`](https://curl.se/docs/manpage.html#--trace-ascii)
+ offer even more details as they show **everything** curl sends and
+ receives. Use it like this:
+
+    curl --trace-ascii debugdump.txt http://www.example.com/
+
+## See the Timing
+
+ Many times you may wonder what exactly is taking all the time, or you just
+ want to know the amount of milliseconds between two points in a transfer. For
+ those, and other similar situations, the
+ [`--trace-time`](https://curl.se/docs/manpage.html#--trace-time) option
+ is what you need. It will prepend the time to each trace output line:
+
+    curl --trace-ascii d.txt --trace-time http://example.com/
+
+## See the Response
+
+ By default curl sends the response to stdout. You need to redirect it
+ somewhere to avoid that, most often that is done with ` -o` or `-O`.
+
+# URL
+
+## Spec
+
+ The Uniform Resource Locator format is how you specify the address of a
+ particular resource on the Internet. You know these, you have seen URLs like
+ https://curl.se or https://yourbank.com a million times. RFC 3986 is the
+ canonical spec. And yeah, the formal name is not URL, it is URI.
+
+## Host
+
+ The host name is usually resolved using DNS or your /etc/hosts file to an IP
+ address and that is what curl will communicate with. Alternatively you specify
+ the IP address directly in the URL instead of a name.
+
+ For development and other trying out situations, you can point to a different
+ IP address for a host name than what would otherwise be used, by using curl's
+ [`--resolve`](https://curl.se/docs/manpage.html#--resolve) option:
+
+    curl --resolve www.example.org:80:127.0.0.1 http://www.example.org/
+
+## Port number
+
+ Each protocol curl supports operates on a default port number, be it over TCP
+ or in some cases UDP. Normally you do not have to take that into
+ consideration, but at times you run test servers on other ports or
+ similar. Then you can specify the port number in the URL with a colon and a
+ number immediately following the host name. Like when doing HTTP to port
+ 1234:
+
+    curl http://www.example.org:1234/
+
+ The port number you specify in the URL is the number that the server uses to
+ offer its services. Sometimes you may use a proxy, and then you may
+ need to specify that proxy's port number separately from what curl needs to
+ connect to the server. Like when using an HTTP proxy on port 4321:
+
+    curl --proxy http://proxy.example.org:4321 http://remote.example.org/
+
+## User name and password
+
+ Some services are setup to require HTTP authentication and then you need to
+ provide name and password which is then transferred to the remote site in
+ various ways depending on the exact authentication protocol used.
+
+ You can opt to either insert the user and password in the URL or you can
+ provide them separately:
+
+    curl http://user:password@example.org/
+
+ or
+
+    curl -u user:password http://example.org/
+
+ You need to pay attention that this kind of HTTP authentication is not what
+ is usually done and requested by user-oriented websites these days. They tend
+ to use forms and cookies instead.
+
+## Path part
+
+ The path part is just sent off to the server to request that it sends back
+ the associated response. The path is what is to the right side of the slash
+ that follows the host name and possibly port number.
+
+# Fetch a page
+
+## GET
+
+ The simplest and most common request/operation made using HTTP is to GET a
+ URL. The URL could itself refer to a web page, an image or a file. The client
+ issues a GET request to the server and receives the document it asked for.
+ If you issue the command line
+
+    curl https://curl.se
+
+ you get a web page returned in your terminal window. The entire HTML document
+ that that URL holds.
+
+ All HTTP replies contain a set of response headers that are normally hidden,
+ use curl's [`--include`](https://curl.se/docs/manpage.html#-i) (`-i`)
+ option to display them as well as the rest of the document.
+
+## HEAD
+
+ You can ask the remote server for ONLY the headers by using the
+ [`--head`](https://curl.se/docs/manpage.html#-I) (`-I`) option which
+ will make curl issue a HEAD request. In some special cases servers deny the
+ HEAD method while others still work, which is a particular kind of annoyance.
+
+ The HEAD method is defined and made so that the server returns the headers
+ exactly the way it would do for a GET, but without a body. It means that you
+ may see a `Content-Length:` in the response headers, but there must not be an
+ actual body in the HEAD response.
+
+## Multiple URLs in a single command line
+
+ A single curl command line may involve one or many URLs. The most common case
+ is probably to just use one, but you can specify any amount of URLs. Yes
+ any. No limits. You will then get requests repeated over and over for all the
+ given URLs.
+
+ Example, send two GETs:
+
+    curl http://url1.example.com http://url2.example.com
+
+ If you use [`--data`](https://curl.se/docs/manpage.html#-d) to POST to
+ the URL, using multiple URLs means that you send that same POST to all the
+ given URLs.
+
+ Example, send two POSTs:
+
+    curl --data name=curl http://url1.example.com http://url2.example.com
+
+
+## Multiple HTTP methods in a single command line
+
+ Sometimes you need to operate on several URLs in a single command line and do
+ different HTTP methods on each. For this, you will enjoy the
+ [`--next`](https://curl.se/docs/manpage.html#-:) option. It is basically
+ a separator that separates a bunch of options from the next. All the URLs
+ before `--next` will get the same method and will get all the POST data
+ merged into one.
+
+ When curl reaches the `--next` on the command line, it will sort of reset the
+ method and the POST data and allow a new set.
+
+ Perhaps this is best shown with a few examples. To send first a HEAD and then
+ a GET:
+
+    curl -I http://example.com --next http://example.com
+
+ To first send a POST and then a GET:
+
+    curl -d score=10 http://example.com/post.cgi --next http://example.com/results.html
+
+# HTML forms
+
+## Forms explained
+
+ Forms are the general way a website can present an HTML page with fields for
+ the user to enter data in, and then press some kind of 'OK' or 'Submit'
+ button to get that data sent to the server. The server then typically uses
+ the posted data to decide how to act. Like using the entered words to search
+ in a database, or to add the info in a bug tracking system, display the
+ entered address on a map or using the info as a login-prompt verifying that
+ the user is allowed to see what it is about to see.
+
+ Of course there has to be some kind of program on the server end to receive
+ the data you send. You cannot just invent something out of the air.
+
+## GET
+
+ A GET-form uses the method GET, as specified in HTML like:
+
+```html
+

+  
+  
+

+```
+
+ In your favorite browser, this form will appear with a text box to fill in
+ and a press-button labeled "OK". If you fill in '1905' and press the OK
+ button, your browser will then create a new URL to get for you. The URL will
+ get `junk.cgi?birthyear=1905&press=OK` appended to the path part of the
+ previous URL.
+
+ If the original form was seen on the page `www.example.com/when/birth.html`,
+ the second page you will get will become
+ `www.example.com/when/junk.cgi?birthyear=1905&press=OK`.
+
+ Most search engines work this way.
+
+ To make curl do the GET form post for you, just enter the expected created
+ URL:
+
+    curl "http://www.example.com/when/junk.cgi?birthyear=1905&press=OK"
+
+## POST
+
+ The GET method makes all input field names get displayed in the URL field of
+ your browser. That is generally a good thing when you want to be able to
+ bookmark that page with your given data, but it is an obvious disadvantage if
+ you entered secret information in one of the fields or if there are a large
+ amount of fields creating a long and unreadable URL.
+
+ The HTTP protocol then offers the POST method. This way the client sends the
+ data separated from the URL and thus you will not see any of it in the URL
+ address field.
+
+ The form would look similar to the previous one:
+
+```html
+

+  
+  
+

+```
+
+ And to use curl to post this form with the same data filled in as before, we
+ could do it like:
+
+    curl --data "birthyear=1905&press=%20OK%20" http://www.example.com/when/junk.cgi
+
+ This kind of POST will use the Content-Type
+ `application/x-www-form-urlencoded` and is the most widely used POST kind.
+
+ The data you send to the server MUST already be properly encoded, curl will
+ not do that for you. For example, if you want the data to contain a space,
+ you need to replace that space with `%20`, etc. Failing to comply with this will
+ most likely cause your data to be received wrongly and messed up.
+
+ Recent curl versions can in fact url-encode POST data for you, like this:
+
+    curl --data-urlencode "name=I am Daniel" http://www.example.com
+
+ If you repeat `--data` several times on the command line, curl will
+ concatenate all the given data pieces - and put a `&` symbol between each
+ data segment.
+
+## File Upload POST
+
+ Back in late 1995 they defined an additional way to post data over HTTP. It
+ is documented in the RFC 1867, why this method sometimes is referred to as
+ RFC1867-posting.
+
+ This method is mainly designed to better support file uploads. A form that
+ allows a user to upload a file could be written like this in HTML:
+
+```html
+

+  
+  
+

+```
+
+ This clearly shows that the Content-Type about to be sent is
+ `multipart/form-data`.
+
+ To post to a form like this with curl, you enter a command line like:
+
+    curl --form upload=@localfilename --form press=OK [URL]
+
+## Hidden Fields
+
+ A common way for HTML based applications to pass state information between
+ pages is to add hidden fields to the forms. Hidden fields are already filled
+ in, they are not displayed to the user and they get passed along just as all
+ the other fields.
+
+ A similar example form with one visible field, one hidden field and one
+ submit button could look like:
+
+```html
+

+  
+  
+  
+

+```
+
+ To POST this with curl, you will not have to think about if the fields are
+ hidden or not. To curl they are all the same:
+
+    curl --data "birthyear=1905&press=OK&person=daniel" [URL]
+
+## Figure Out What A POST Looks Like
+
+ When you are about to fill in a form and send it to a server by using curl
+ instead of a browser, you are of course interested in sending a POST exactly
+ the way your browser does.
+
+ An easy way to get to see this, is to save the HTML page with the form on
+ your local disk, modify the 'method' to a GET, and press the submit button
+ (you could also change the action URL if you want to).
+
+ You will then clearly see the data get appended to the URL, separated with a
+ `?`-letter as GET forms are supposed to.
+
+# HTTP upload
+
+## PUT
+
+ Perhaps the best way to upload data to an HTTP server is to use PUT. Then
+ again, this of course requires that someone put a program or script on the
+ server end that knows how to receive an HTTP PUT stream.
+
+ Put a file to an HTTP server with curl:
+
+    curl --upload-file uploadfile http://www.example.com/receive.cgi
+
+# HTTP Authentication
+
+## Basic Authentication
+
+ HTTP Authentication is the ability to tell the server your username and
+ password so that it can verify that you are allowed to do the request you are
+ doing. The Basic authentication used in HTTP (which is the type curl uses by
+ default) is **plain text** based, which means it sends username and password
+ only slightly obfuscated, but still fully readable by anyone that sniffs on
+ the network between you and the remote server.
+
+ To tell curl to use a user and password for authentication:
+
+    curl --user name:password http://www.example.com
+
+## Other Authentication
+
+ The site might require a different authentication method (check the headers
+ returned by the server), and then
+ [`--ntlm`](https://curl.se/docs/manpage.html#--ntlm),
+ [`--digest`](https://curl.se/docs/manpage.html#--digest),
+ [`--negotiate`](https://curl.se/docs/manpage.html#--negotiate) or even
+ [`--anyauth`](https://curl.se/docs/manpage.html#--anyauth) might be
+ options that suit you.
+
+## Proxy Authentication
+
+ Sometimes your HTTP access is only available through the use of an HTTP
+ proxy. This seems to be especially common at various companies. An HTTP proxy
+ may require its own user and password to allow the client to get through to
+ the Internet. To specify those with curl, run something like:
+
+    curl --proxy-user proxyuser:proxypassword curl.se
+
+ If your proxy requires the authentication to be done using the NTLM method,
+ use [`--proxy-ntlm`](https://curl.se/docs/manpage.html#--proxy-ntlm), if
+ it requires Digest use
+ [`--proxy-digest`](https://curl.se/docs/manpage.html#--proxy-digest).
+
+ If you use any one of these user+password options but leave out the password
+ part, curl will prompt for the password interactively.
+
+## Hiding credentials
+
+ Do note that when a program is run, its parameters might be possible to see
+ when listing the running processes of the system. Thus, other users may be
+ able to watch your passwords if you pass them as plain command line
+ options. There are ways to circumvent this.
+
+ It is worth noting that while this is how HTTP Authentication works, many
+ websites will not use this concept when they provide logins etc. See the Web
+ Login chapter further below for more details on that.
+
+# More HTTP Headers
+
+## Referer
+
+ An HTTP request may include a 'referer' field (yes it is misspelled), which
+ can be used to tell from which URL the client got to this particular
+ resource. Some programs/scripts check the referer field of requests to verify
+ that this was not arriving from an external site or an unknown page. While
+ this is a stupid way to check something so easily forged, many scripts still
+ do it. Using curl, you can put anything you want in the referer-field and
+ thus more easily be able to fool the server into serving your request.
+
+ Use curl to set the referer field with:
+
+    curl --referer http://www.example.come http://www.example.com
+
+## User Agent
+
+ Similar to the referer field, all HTTP requests may set the User-Agent
+ field. It names what user agent (client) that is being used. Many
+ applications use this information to decide how to display pages. Silly web
+ programmers try to make different pages for users of different browsers to
+ make them look the best possible for their particular browsers. They usually
+ also do different kinds of JavaScript, VBScript etc.
+
+ At times, you will see that getting a page with curl will not return the same
+ page that you see when getting the page with your browser. Then you know it
+ is time to set the User Agent field to fool the server into thinking you are
+ one of those browsers.
+
+ To make curl look like Internet Explorer 5 on a Windows 2000 box:
+
+    curl --user-agent "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)" [URL]
+
+ Or why not look like you are using Netscape 4.73 on an old Linux box:
+
+    curl --user-agent "Mozilla/4.73 [en] (X11; U; Linux 2.2.15 i686)" [URL]
+
+## Redirects
+
+## Location header
+
+ When a resource is requested from a server, the reply from the server may
+ include a hint about where the browser should go next to find this page, or a
+ new page keeping newly generated output. The header that tells the browser to
+ redirect is `Location:`.
+
+ Curl does not follow `Location:` headers by default, but will simply display
+ such pages in the same manner it displays all HTTP replies. It does however
+ feature an option that will make it attempt to follow the `Location:`
+ pointers.
+
+ To tell curl to follow a Location:
+
+    curl --location http://www.example.com
+
+ If you use curl to POST to a site that immediately redirects you to another
+ page, you can safely use
+ [`--location`](https://curl.se/docs/manpage.html#-L) (`-L`) and
+ `--data`/`--form` together. Curl will only use POST in the first request, and
+ then revert to GET in the following operations.
+
+## Other redirects
+
+ Browsers typically support at least two other ways of redirects that curl
+ does not: first the html may contain a meta refresh tag that asks the browser
+ to load a specific URL after a set number of seconds, or it may use
+ JavaScript to do it.
+
+# Cookies
+
+## Cookie Basics
+
+ The way the web browsers do "client side state control" is by using
+ cookies. Cookies are just names with associated contents. The cookies are
+ sent to the client by the server. The server tells the client for what path
+ and host name it wants the cookie sent back, and it also sends an expiration
+ date and a few more properties.
+
+ When a client communicates with a server with a name and path as previously
+ specified in a received cookie, the client sends back the cookies and their
+ contents to the server, unless of course they are expired.
+
+ Many applications and servers use this method to connect a series of requests
+ into a single logical session. To be able to use curl in such occasions, we
+ must be able to record and send back cookies the way the web application
+ expects them. The same way browsers deal with them.
+
+## Cookie options
+
+ The simplest way to send a few cookies to the server when getting a page with
+ curl is to add them on the command line like:
+
+    curl --cookie "name=Daniel" http://www.example.com
+
+ Cookies are sent as common HTTP headers. This is practical as it allows curl
+ to record cookies simply by recording headers. Record cookies with curl by
+ using the [`--dump-header`](https://curl.se/docs/manpage.html#-D) (`-D`)
+ option like:
+
+    curl --dump-header headers_and_cookies http://www.example.com
+
+ (Take note that the
+ [`--cookie-jar`](https://curl.se/docs/manpage.html#-c) option described
+ below is a better way to store cookies.)
+
+ Curl has a full blown cookie parsing engine built-in that comes in use if you
+ want to reconnect to a server and use cookies that were stored from a
+ previous connection (or hand-crafted manually to fool the server into
+ believing you had a previous connection). To use previously stored cookies,
+ you run curl like:
+
+    curl --cookie stored_cookies_in_file http://www.example.com
+
+ Curl's "cookie engine" gets enabled when you use the
+ [`--cookie`](https://curl.se/docs/manpage.html#-b) option. If you only
+ want curl to understand received cookies, use `--cookie` with a file that
+ does not exist. Example, if you want to let curl understand cookies from a
+ page and follow a location (and thus possibly send back cookies it received),
+ you can invoke it like:
+
+    curl --cookie nada --location http://www.example.com
+
+ Curl has the ability to read and write cookie files that use the same file
+ format that Netscape and Mozilla once used. It is a convenient way to share
+ cookies between scripts or invokes. The `--cookie` (`-b`) switch
+ automatically detects if a given file is such a cookie file and parses it,
+ and by using the `--cookie-jar` (`-c`) option you will make curl write a new
+ cookie file at the end of an operation:
+
+    curl --cookie cookies.txt --cookie-jar newcookies.txt \
+    http://www.example.com
+
+# HTTPS
+
+## HTTPS is HTTP secure
+
+ There are a few ways to do secure HTTP transfers. By far the most common
+ protocol for doing this is what is generally known as HTTPS, HTTP over
+ SSL. SSL encrypts all the data that is sent and received over the network and
+ thus makes it harder for attackers to spy on sensitive information.
+
+ SSL (or TLS as the latest version of the standard is called) offers a
+ truckload of advanced features to allow all those encryptions and key
+ infrastructure mechanisms encrypted HTTP requires.
+
+ Curl supports encrypted fetches when built to use a TLS library and it can be
+ built to use one out of a fairly large set of libraries - `curl -V` will show
+ which one your curl was built to use (if any!). To get a page from an HTTPS
+ server, simply run curl like:
+
+    curl https://secure.example.com
+
+## Certificates
+
+ In the HTTPS world, you use certificates to validate that you are the one
+ you claim to be, as an addition to normal passwords. Curl supports client-
+ side certificates. All certificates are locked with a pass phrase, which you
+ need to enter before the certificate can be used by curl. The pass phrase
+ can be specified on the command line or if not, entered interactively when
+ curl queries for it. Use a certificate with curl on an HTTPS server like:
+
+    curl --cert mycert.pem https://secure.example.com
+
+ curl also tries to verify that the server is who it claims to be, by
+ verifying the server's certificate against a locally stored CA cert
+ bundle. Failing the verification will cause curl to deny the connection. You
+ must then use [`--insecure`](https://curl.se/docs/manpage.html#-k)
+ (`-k`) in case you want to tell curl to ignore that the server cannot be
+ verified.
+
+ More about server certificate verification and ca cert bundles can be read in
+ the [SSLCERTS document](https://curl.se/docs/sslcerts.html).
+
+ At times you may end up with your own CA cert store and then you can tell
+ curl to use that to verify the server's certificate:
+
+    curl --cacert ca-bundle.pem https://example.com/
+
+# Custom Request Elements
+
+## Modify method and headers
+
+ Doing fancy stuff, you may need to add or change elements of a single curl
+ request.
+
+ For example, you can change the POST request to a PROPFIND and send the data
+ as `Content-Type: text/xml` (instead of the default Content-Type) like this:
+
+    curl --data "" --header "Content-Type: text/xml" \
+      --request PROPFIND example.com
+
+ You can delete a default header by providing one without content. Like you
+ can ruin the request by chopping off the Host: header:
+
+    curl --header "Host:" http://www.example.com
+
+ You can add headers the same way. Your server may want a `Destination:`
+ header, and you can add it:
+
+    curl --header "Destination: http://nowhere" http://example.com
+
+## More on changed methods
+
+ It should be noted that curl selects which methods to use on its own
+ depending on what action to ask for. `-d` will do POST, `-I` will do HEAD and
+ so on. If you use the
+ [`--request`](https://curl.se/docs/manpage.html#-X) / `-X` option you
+ can change the method keyword curl selects, but you will not modify curl's
+ behavior. This means that if you for example use -d "data" to do a POST, you
+ can modify the method to a `PROPFIND` with `-X` and curl will still think it
+ sends a POST . You can change the normal GET to a POST method by simply
+ adding `-X POST` in a command line like:
+
+    curl -X POST http://example.org/
+
+ ... but curl will still think and act as if it sent a GET so it will not send
+ any request body etc.
+
+# Web Login
+
+## Some login tricks
+
+ While not strictly just HTTP related, it still causes a lot of people
+ problems so here's the executive run-down of how the vast majority of all
+ login forms work and how to login to them using curl.
+
+ It can also be noted that to do this properly in an automated fashion, you
+ will most certainly need to script things and do multiple curl invokes etc.
+
+ First, servers mostly use cookies to track the logged-in status of the
+ client, so you will need to capture the cookies you receive in the
+ responses. Then, many sites also set a special cookie on the login page (to
+ make sure you got there through their login page) so you should make a habit
+ of first getting the login-form page to capture the cookies set there.
+
+ Some web-based login systems feature various amounts of JavaScript, and
+ sometimes they use such code to set or modify cookie contents. Possibly they
+ do that to prevent programmed logins, like this manual describes how to...
+ Anyway, if reading the code is not enough to let you repeat the behavior
+ manually, capturing the HTTP requests done by your browsers and analyzing the
+ sent cookies is usually a working method to work out how to shortcut the
+ JavaScript need.
+
+ In the actual `
` tag for the login, lots of sites fill-in
+ random/session or otherwise secretly generated hidden tags and you may need
+ to first capture the HTML code for the login form and extract all the hidden
+ fields to be able to do a proper login POST. Remember that the contents need
+ to be URL encoded when sent in a normal POST.
+
+# Debug
+
+## Some debug tricks
+
+ Many times when you run curl on a site, you will notice that the site does not
+ seem to respond the same way to your curl requests as it does to your
+ browser's.
+
+ Then you need to start making your curl requests more similar to your
+ browser's requests:
+
+ - Use the `--trace-ascii` option to store fully detailed logs of the requests
+   for easier analyzing and better understanding
+
+ - Make sure you check for and use cookies when needed (both reading with
+   `--cookie` and writing with `--cookie-jar`)
+
+ - Set user-agent (with [`-A`](https://curl.se/docs/manpage.html#-A)) to
+   one like a recent popular browser does
+
+ - Set referer (with [`-E`](https://curl.se/docs/manpage.html#-E)) like
+   it is set by the browser
+
+ - If you use POST, make sure you send all the fields and in the same order as
+   the browser does it.
+
+## Check what the browsers do
+
+ A good helper to make sure you do this right, is the web browsers' developers
+ tools that let you view all headers you send and receive (even when using
+ HTTPS).
+
+ A more raw approach is to capture the HTTP traffic on the network with tools
+ such as Wireshark or tcpdump and check what headers that were sent and
+ received by the browser. (HTTPS forces you to use `SSLKEYLOGFILE` to do
+ that.)
diff --git a/curl/docs/URL-SYNTAX.md b/curl/docs/URL-SYNTAX.md
new file mode 100644
index 0000000..0b452f8
--- /dev/null
+++ b/curl/docs/URL-SYNTAX.md
@@ -0,0 +1,388 @@
+# URL syntax and their use in curl
+
+## Specifications
+
+The official "URL syntax" is primarily defined in these two different
+specifications:
+
+ - [RFC 3986](https://datatracker.ietf.org/doc/html/rfc3986) (although URL is called
+   "URI" in there)
+ - [The WHATWG URL Specification](https://url.spec.whatwg.org/)
+
+RFC 3986 is the earlier one, and curl has always tried to adhere to that one
+(since it shipped in January 2005).
+
+The WHATWG URL spec was written later, is incompatible with the RFC 3986 and
+changes over time.
+
+## Variations
+
+URL parsers as implemented in browsers, libraries and tools usually opt to
+support one of the mentioned specifications. Bugs, differences in
+interpretations and the moving nature of the WHATWG spec does however make it
+unlikely that multiple parsers treat URLs the same way.
+
+## Security
+
+Due to the inherent differences between URL parser implementations, it is
+considered a security risk to mix different implementations and assume the
+same behavior!
+
+For example, if you use one parser to check if a URL uses a good host name or
+the correct auth field, and then pass on that same URL to a *second* parser,
+there will always be a risk it treats the same URL differently. There is no
+right and wrong in URL land, only differences of opinions.
+
+libcurl offers a separate API to its URL parser for this reason, among others.
+
+Applications may at times find it convenient to allow users to specify URLs
+for various purposes and that string would then end up fed to curl. Getting a
+URL from an external untrusted party and using it with curl brings several
+security concerns:
+
+1. If you have an application that runs as or in a server application, getting
+   an unfiltered URL can trick your application to access a local resource
+   instead of a remote resource. Protecting yourself against localhost accesses
+   is hard when accepting user provided URLs.
+
+2. Such custom URLs can access other ports than you planned as port numbers
+   are part of the regular URL format. The combination of a local host and a
+   custom port number can allow external users to play tricks with your local
+   services.
+
+3. Such a URL might use other schemes than you thought of or planned for.
+
+## "RFC3986 plus"
+
+curl recognizes a URL syntax that we call "RFC 3986 plus". It is grounded on
+the well established RFC 3986 to make sure previously written command lines and
+curl using scripts will remain working.
+
+curl's URL parser allows a few deviations from the spec in order to
+inter-operate better with URLs that appear in the wild.
+
+### spaces
+
+A URL provided to curl cannot contain spaces. They need to be provided URL
+encoded to be accepted in a URL by curl.
+
+An exception to this rule: `Location:` response headers that indicate to a
+client where a resource has been redirected to, sometimes contain spaces. This
+is a violation of RFC 3986 but is fine in the WHATWG spec. curl handles these
+by re-encoding them to `%20`.
+
+### non-ASCII
+
+Byte values in a provided URL that are outside of the printable ASCII range
+are percent-encoded by curl.
+
+### multiple slashes
+
+An absolute URL always starts with a "scheme" followed by a colon. For all the
+schemes curl supports, the colon must be followed by two slashes according to
+RFC 3986 but not according to the WHATWG spec - which allows one to infinity
+amount.
+
+curl allows one, two or three slashes after the colon to still be considered a
+valid URL.
+
+### "scheme-less"
+
+curl supports "URLs" that do not start with a scheme. This is not supported by
+any of the specifications. This is a shortcut to entering URLs that was
+supported by browsers early on and has been mimicked by curl.
+
+Based on what the host name starts with, curl will "guess" what protocol to
+use:
+
+ - `ftp.` means FTP
+ - `dict.` means DICT
+ - `ldap.` means LDAP
+ - `imap.` means IMAP
+ - `smtp.` means SMTP
+ - `pop3.` means POP3
+ - all other means HTTP
+
+### globbing letters
+
+The curl command line tool supports "globbing" of URLs. It means that you can
+create ranges and lists using `[N-M]` and `{one,two,three}` sequences. The
+letters used for this (`[]{}`) are reserved in RFC 3986 and can therefore not
+legitimately be part of such a URL.
+
+They are however not reserved or special in the WHATWG specification, so
+globbing can mess up such URLs. Globbing can be turned off for such occasions
+(using `--globoff`).
+
+# URL syntax details
+
+A URL may consist of the following components - many of them are optional:
+
+    [scheme][divider][userinfo][hostname][port number][path][query][fragment]
+
+Each component is separated from the following component with a divider
+character or string.
+
+For example, this could look like:
+
+    http://user:password@www.example.com:80/index.hmtl?foo=bar#top
+
+## Scheme
+
+The scheme specifies the protocol to use. A curl build can support a few or
+many different schemes. You can limit what schemes curl should accept.
+
+curl supports the following schemes on URLs specified to transfer. They are
+matched case insensitively:
+
+`dict`, `file`, `ftp`, `ftps`, `gopher`, `gophers`, `http`, `https`, `imap`,
+`imaps`, `ldap`, `ldaps`, `mqtt`, `pop3`, `pop3s`, `rtmp`, `rtmpe`, `rtmps`,
+`rtmpt`, `rtmpte`, `rtmpts`, `rtsp`, `smb`, `smbs`, `smtp`, `smtps`, `telnet`,
+`tftp`
+
+When the URL is specified to identify a proxy, curl recognizes the following
+schemes:
+
+`http`, `https`, `socks4`, `socks4a`, `socks5`, `socks5h`, `socks`
+
+## Userinfo
+
+The userinfo field can be used to set user name and password for
+authentication purposes in this transfer. The use of this field is discouraged
+since it often means passing around the password in plain text and is thus a
+security risk.
+
+URLs for IMAP, POP3 and SMTP also support *login options* as part of the
+userinfo field. They are provided as a semicolon after the password and then
+the options.
+
+## Hostname
+
+The hostname part of the URL contains the address of the server that you want
+to connect to. This can be the fully qualified domain name of the server, the
+local network name of the machine on your network or the IP address of the
+server or machine represented by either an IPv4 or IPv6 address (within
+brackets). For example:
+
+    http://www.example.com/
+
+    http://hostname/
+
+    http://192.168.0.1/
+
+    http://[2001:1890:1112:1::20]/
+
+### "localhost"
+
+Starting in curl 7.77.0, curl uses loopback IP addresses for the name
+`localhost`: `127.0.0.1` and `::1`. It does not resolve the name using the
+resolver functions.
+
+This is done to make sure the host accessed is truly the localhost - the local
+machine.
+
+### IDNA
+
+If curl was built with International Domain Name (IDN) support, it can also
+handle host names using non-ASCII characters.
+
+When built with libidn2, curl uses the IDNA 2008 standard. This is equivalent
+to the WHATWG URL spec, but differs from certain browsers that use IDNA 2003
+Transitional Processing. The two standards have a huge overlap but differ
+slightly, perhaps most famously in how they deal with the German "double s"
+(`ß`).
+
+When winidn is used, curl uses IDNA 2003 Transitional Processing, like the rest
+of Windows.
+
+## Port number
+
+If there's a colon after the hostname, that should be followed by the port
+number to use. 1 - 65535. curl also supports a blank port number field - but
+only if the URL starts with a scheme.
+
+If the port number is not specified in the URL, curl will used a default port
+based on the provide scheme:
+
+DICT 2628, FTP 21, FTPS 990, GOPHER 70, GOPHERS 70, HTTP 80, HTTPS 443,
+IMAP 132, IMAPS 993, LDAP 369, LDAPS 636, MQTT 1883, POP3 110, POP3S 995,
+RTMP 1935, RTMPS 443, RTMPT 80, RTSP 554, SCP 22, SFTP 22, SMB 445, SMBS 445,
+SMTP 25, SMTPS 465, TELNET 23, TFTP 69
+
+# Scheme specific behaviors
+
+## FTP
+
+The path part of an FTP request specifies the file to retrieve and from which
+directory. If the file part is omitted then libcurl downloads the directory
+listing for the directory specified. If the directory is omitted then the
+directory listing for the root / home directory will be returned.
+
+FTP servers typically put the user in its "home directory" after login, which
+then differs between users. To explicitly specify the root directory of an FTP
+server, start the path with double slash `//` or `/%2f` (2F is the hexadecimal
+value of the ascii code for the slash).
+
+## FILE
+
+When a `FILE://` URL is accessed on Windows systems, it can be crafted in a
+way so that Windows attempts to connect to a (remote) machine when curl wants
+to read or write such a path.
+
+curl only allows the hostname part of a FILE URL to be one out of these three
+alternatives: `localhost`, `127.0.0.1` or blank ("", zero characters).
+Anything else will make curl fail to parse the URL.
+
+### Windows-specific FILE details
+
+curl accepts that the FILE URL's path starts with a "drive letter". That is a
+single letter `a` to `z` followed by a colon or a pipe character (`|`).
+
+The Windows operating system itself will convert some file accesses to perform
+network accesses over SMB/CIFS, through several different file path patterns.
+This way, a `file://` URL passed to curl *might* be converted into a network
+access inadvertently and unknowingly to curl. This is a Windows feature curl
+cannot control or disable.
+
+## IMAP
+
+The path part of an IMAP request not only specifies the mailbox to list or
+select, but can also be used to check the `UIDVALIDITY` of the mailbox, to
+specify the `UID`, `SECTION` and `PARTIAL` octets of the message to fetch and
+to specify what messages to search for.
+
+A top level folder list:
+
+    imap://user:password@mail.example.com
+
+A folder list on the user's inbox:
+
+    imap://user:password@mail.example.com/INBOX
+
+Select the user's inbox and fetch message with uid = 1:
+
+    imap://user:password@mail.example.com/INBOX/;UID=1
+
+Select the user's inbox and fetch the first message in the mail box:
+
+    imap://user:password@mail.example.com/INBOX/;MAILINDEX=1
+
+Select the user's inbox, check the `UIDVALIDITY` of the mailbox is 50 and
+fetch message 2 if it is:
+
+    imap://user:password@mail.example.com/INBOX;UIDVALIDITY=50/;UID=2
+
+Select the user's inbox and fetch the text portion of message 3:
+
+    imap://user:password@mail.example.com/INBOX/;UID=3/;SECTION=TEXT
+
+Select the user's inbox and fetch the first 1024 octets of message 4:
+
+    imap://user:password@mail.example.com/INBOX/;UID=4/;PARTIAL=0.1024
+
+Select the user's inbox and check for NEW messages:
+
+    imap://user:password@mail.example.com/INBOX?NEW
+
+Select the user's inbox and search for messages containing "shadows" in the
+subject line:
+
+    imap://user:password@mail.example.com/INBOX?SUBJECT%20shadows
+
+Searching via the query part of the URL `?` is a search request for the results
+to be returned as message sequence numbers (MAILINDEX). It is possible to make
+a search request for results to be returned as unique ID numbers (UID) by using
+a custom curl request via `-X`. UID numbers are unique per session (and
+multiple sessions when UIDVALIDITY is the same). For example, if you are
+searching for `"foo bar"` in header+body (TEXT) and you want the matching
+MAILINDEX numbers returned then you could search via URL:
+
+    imap://user:password@mail.example.com/INBOX?TEXT%20%22foo%20bar%22
+
+.. but if you wanted matching UID numbers you would have to use a custom request:
+
+    imap://user:password@mail.example.com/INBOX -X "UID SEARCH TEXT \"foo bar\""
+
+For more information about IMAP commands please see RFC 9051. For more
+information about the individual components of an IMAP URL please see RFC 5092.
+
+* Note old curl versions would FETCH by message sequence number when UID was
+specified in the URL. That was a bug fixed in 7.62.0, which added MAILINDEX to
+FETCH by mail sequence number.
+
+## LDAP
+
+The path part of a LDAP request can be used to specify the: Distinguished
+Name, Attributes, Scope, Filter and Extension for a LDAP search. Each field is
+separated by a question mark and when that field is not required an empty
+string with the question mark separator should be included.
+
+Search for the DN as `My Organization`:
+
+    ldap://ldap.example.com/o=My%20Organization
+
+the same search but will only return postalAddress attributes:
+
+    ldap://ldap.example.com/o=My%20Organization?postalAddress
+
+Search for an empty DN and request information about the
+`rootDomainNamingContext` attribute for an Active Directory server:
+
+    ldap://ldap.example.com/?rootDomainNamingContext
+
+For more information about the individual components of a LDAP URL please
+see [RFC 4516](https://datatracker.ietf.org/doc/html/rfc4516).
+
+## POP3
+
+The path part of a POP3 request specifies the message ID to retrieve. If the
+ID is not specified then a list of waiting messages is returned instead.
+
+## SCP
+
+The path part of an SCP URL specifies the path and file to retrieve or
+upload. The file is taken as an absolute path from the root directory on the
+server.
+
+To specify a path relative to the user's home directory on the server, prepend
+`~/` to the path portion.
+
+## SFTP
+
+The path part of an SFTP URL specifies the file to retrieve or upload. If the
+path ends with a slash (`/`) then a directory listing is returned instead of a
+file. If the path is omitted entirely then the directory listing for the root
+/ home directory will be returned.
+
+## SMB
+The path part of a SMB request specifies the file to retrieve and from what
+share and directory or the share to upload to and as such, may not be omitted.
+If the user name is embedded in the URL then it must contain the domain name
+and as such, the backslash must be URL encoded as %2f.
+
+curl supports SMB version 1 (only)
+
+## SMTP
+
+The path part of a SMTP request specifies the host name to present during
+communication with the mail server. If the path is omitted, then libcurl will
+attempt to resolve the local computer's host name. However, this may not
+return the fully qualified domain name that is required by some mail servers
+and specifying this path allows you to set an alternative name, such as your
+machine's fully qualified domain name, which you might have obtained from an
+external function such as gethostname or getaddrinfo.
+
+The default smtp port is 25. Some servers use port 587 as an alternative.
+
+## RTMP
+
+There's no official URL spec for RTMP so libcurl uses the URL syntax supported
+by the underlying librtmp library. It has a syntax where it wants a
+traditional URL, followed by a space and a series of space-separated
+`name=value` pairs.
+
+While space is not typically a "legal" letter, libcurl accepts them. When a
+user wants to pass in a `#` (hash) character it will be treated as a fragment
+and get cut off by libcurl if provided literally. You will instead have to
+escape it by providing it as backslash and its ASCII value in hexadecimal:
+`\23`.
diff --git a/curl/docs/VERSIONS.md b/curl/docs/VERSIONS.md
new file mode 100644
index 0000000..de0b0d4
--- /dev/null
+++ b/curl/docs/VERSIONS.md
@@ -0,0 +1,57 @@
+Version Numbers and Releases
+============================
+
+ Curl is not only curl. Curl is also libcurl. they are actually individually
+ versioned, but they usually follow each other closely.
+
+ The version numbering is always built up using the same system:
+
+        X.Y.Z
+
+  - X is main version number
+  - Y is release number
+  - Z is patch number
+
+## Bumping numbers
+
+ One of these numbers will get bumped in each new release. The numbers to the
+ right of a bumped number will be reset to zero.
+
+ The main version number will get bumped when *really* big, world colliding
+ changes are made. The release number is bumped when changes are performed or
+ things/features are added. The patch number is bumped when the changes are
+ mere bugfixes.
+
+ It means that after release 1.2.3, we can release 2.0.0 if something really
+ big has been made, 1.3.0 if not that big changes were made or 1.2.4 if only
+ bugs were fixed.
+
+ Bumping, as in increasing the number with 1, is unconditionally only
+ affecting one of the numbers (except the ones to the right of it, that may be
+ set to zero). 1 becomes 2, 3 becomes 4, 9 becomes 10, 88 becomes 89 and 99
+ becomes 100. So, after 1.2.9 comes 1.2.10. After 3.99.3, 3.100.0 might come.
+
+ All original curl source release archives are named according to the libcurl
+ version (not according to the curl client version that, as said before, might
+ differ).
+
+ As a service to any application that might want to support new libcurl
+ features while still being able to build with older versions, all releases
+ have the libcurl version stored in the curl/curlver.h file using a static
+ numbering scheme that can be used for comparison. The version number is
+ defined as:
+
+```c
+#define LIBCURL_VERSION_NUM 0xXXYYZZ
+```
+
+ Where XX, YY and ZZ are the main version, release and patch numbers in
+ hexadecimal. All three number fields are always represented using two digits
+ (eight bits each). 1.2 would appear as "0x010200" while version 9.11.7
+ appears as "0x090b07".
+
+ This 6-digit hexadecimal number is always a greater number in a more recent
+ release. It makes comparisons with greater than and less than work.
+
+ This number is also available as three separate defines:
+ `LIBCURL_VERSION_MAJOR`, `LIBCURL_VERSION_MINOR` and `LIBCURL_VERSION_PATCH`.
diff --git a/curl/docs/cmdline-opts/CMakeLists.txt b/curl/docs/cmdline-opts/CMakeLists.txt
new file mode 100644
index 0000000..ae25c5c
--- /dev/null
+++ b/curl/docs/cmdline-opts/CMakeLists.txt
@@ -0,0 +1,33 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+set(MANPAGE "${CURL_BINARY_DIR}/docs/curl.1")
+
+# Load DPAGES and OTHERPAGES from shared file
+transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
+include("${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
+
+add_custom_command(OUTPUT "${MANPAGE}"
+  COMMAND "${PERL_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/gen.pl" mainpage "${CMAKE_CURRENT_SOURCE_DIR}" > "${MANPAGE}"
+  DEPENDS ${DPAGES} ${OTHERPAGES}
+  VERBATIM
+)
+add_custom_target(generate-curl.1 DEPENDS "${MANPAGE}")
diff --git a/curl/docs/cmdline-opts/MANPAGE.md b/curl/docs/cmdline-opts/MANPAGE.md
new file mode 100644
index 0000000..e3f5681
--- /dev/null
+++ b/curl/docs/cmdline-opts/MANPAGE.md
@@ -0,0 +1,62 @@
+# curl man page generator
+
+This is the curl man page generator. It generates a single nroff man page
+output from the set of sources files in this directory.
+
+There is one source file for each supported command line option. The output
+gets `page-header` prepended and `page-footer` appended. The format is
+described below.
+
+## Option files
+
+Each command line option is described in a file named `.d`, where
+option name is written without any prefixing dashes. Like the file name for
+the -v, --verbose option is named `verbose.d`.
+
+Each file has a set of meta-data and a body of text.
+
+### Meta-data
+
+    Short: (single letter, without dash)
+    Long: (long form name, without dashes)
+    Arg: (the argument the option takes)
+    Magic: (description of "magic" options)
+    Tags: (space separated list)
+    Protocols: (space separated list for which protocols this option works)
+    Added: (version number in which this was added)
+    Mutexed: (space separated list of options this overrides, no dashes)
+    Requires: (space separated list of features this requires, no dashes)
+    See-also: (space separated list of related options, no dashes)
+    Help: (short text for the --help output for this option)
+    Example: (example command line, without "curl" and can use `$URL`)
+    --- (end of meta-data)
+
+### Body
+
+The body of the description. Only refer to options with their long form option
+version, like `--verbose`. The output generator will replace such with the
+correct markup that shows both short and long version.
+
+Text written within `*asterisks*` will get shown using italics. Text within
+two `**asterisks**` will get shown using bold.
+
+Text that is prefixed with a space will be treated like an "example" and will
+be output in monospace.
+
+## Header and footer
+
+`page-header` is the file that will be output before the generated options
+output for the master man page.
+
+`page-footer` is appended after all the individual options.
+
+## Generate
+
+`./gen.pl mainpage`
+
+This command outputs a single huge nroff file, meant to become `curl.1`. The
+full curl man page.
+
+`./gen.pl listhelp`
+
+Generates a full `curl --help` output for all known command line options.
diff --git a/curl/docs/cmdline-opts/Makefile.am b/curl/docs/cmdline-opts/Makefile.am
new file mode 100644
index 0000000..f416d55
--- /dev/null
+++ b/curl/docs/cmdline-opts/Makefile.am
@@ -0,0 +1,35 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+AUTOMAKE_OPTIONS = foreign no-dependencies
+
+MANPAGE = $(top_builddir)/docs/curl.1
+
+include Makefile.inc
+
+EXTRA_DIST = $(DPAGES) MANPAGE.md gen.pl $(OTHERPAGES) CMakeLists.txt
+
+all: $(MANPAGE)
+
+$(MANPAGE): $(DPAGES) $(OTHERPAGES) Makefile.inc
+	@echo "generate $(MANPAGE)"
+	@(cd $(srcdir) && @PERL@ ./gen.pl mainpage $(DPAGES)) > $(MANPAGE)
diff --git a/curl/docs/cmdline-opts/Makefile.in b/curl/docs/cmdline-opts/Makefile.in
new file mode 100644
index 0000000..d370f0f
--- /dev/null
+++ b/curl/docs/cmdline-opts/Makefile.in
@@ -0,0 +1,865 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+  sasl-authzid.d \
+  sasl-ir.d \
+  service-name.d \
+  show-error.d \
+  silent.d \
+  socks4.d \
+  socks4a.d \
+  socks5-basic.d \
+  socks5-gssapi-nec.d \
+  socks5-gssapi-service.d \
+  socks5-gssapi.d \
+  socks5-hostname.d \
+  socks5.d \
+  speed-limit.d \
+  speed-time.d \
+  ssl-allow-beast.d \
+  ssl-auto-client-cert.d \
+  ssl-no-revoke.d \
+  ssl-reqd.d \
+  ssl-revoke-best-effort.d \
+  ssl.d \
+  sslv2.d \
+  sslv3.d \
+  stderr.d \
+  styled-output.d \
+  suppress-connect-headers.d \
+  tcp-fastopen.d \
+  tcp-nodelay.d \
+  telnet-option.d \
+  tftp-blksize.d \
+  tftp-no-options.d \
+  time-cond.d \
+  tls-max.d \
+  tls13-ciphers.d \
+  tlsauthtype.d \
+  tlspassword.d \
+  tlsuser.d \
+  tlsv1.0.d \
+  tlsv1.1.d \
+  tlsv1.2.d \
+  tlsv1.3.d \
+  tlsv1.d \
+  tr-encoding.d \
+  trace-ascii.d \
+  trace-time.d \
+  trace.d \
+  unix-socket.d \
+  upload-file.d \
+  url.d \
+  use-ascii.d \
+  user-agent.d \
+  user.d \
+  verbose.d \
+  version.d \
+  write-out.d \
+  xattr.d
+
+OTHERPAGES = page-footer page-header
+EXTRA_DIST = $(DPAGES) MANPAGE.md gen.pl $(OTHERPAGES) CMakeLists.txt
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/Makefile.inc $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign docs/cmdline-opts/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign docs/cmdline-opts/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+$(srcdir)/Makefile.inc $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+all: $(MANPAGE)
+
+$(MANPAGE): $(DPAGES) $(OTHERPAGES) Makefile.inc
+	@echo "generate $(MANPAGE)"
+	@(cd $(srcdir) && @PERL@ ./gen.pl mainpage $(DPAGES)) > $(MANPAGE)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/curl/docs/cmdline-opts/Makefile.inc b/curl/docs/cmdline-opts/Makefile.inc
new file mode 100644
index 0000000..87819e0
--- /dev/null
+++ b/curl/docs/cmdline-opts/Makefile.inc
@@ -0,0 +1,273 @@
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+# Shared between Makefile.am and CMakeLists.txt
+
+DPAGES = \
+  abstract-unix-socket.d \
+  alt-svc.d \
+  anyauth.d \
+  append.d \
+  aws-sigv4.d \
+  basic.d \
+  cacert.d \
+  capath.d \
+  cert-status.d \
+  cert-type.d \
+  cert.d \
+  ciphers.d \
+  compressed-ssh.d \
+  compressed.d \
+  config.d \
+  connect-timeout.d \
+  connect-to.d \
+  continue-at.d \
+  cookie-jar.d \
+  cookie.d \
+  create-dirs.d \
+  create-file-mode.d \
+  crlf.d \
+  crlfile.d \
+  curves.d \
+  data-ascii.d \
+  data-binary.d \
+  data-raw.d \
+  data-urlencode.d \
+  data.d \
+  delegation.d \
+  digest.d \
+  disable-eprt.d \
+  disable-epsv.d \
+  disable.d \
+  disallow-username-in-url.d \
+  dns-interface.d \
+  dns-ipv4-addr.d \
+  dns-ipv6-addr.d \
+  dns-servers.d \
+  doh-cert-status.d \
+  doh-insecure.d \
+  doh-url.d \
+  dump-header.d \
+  egd-file.d \
+  engine.d \
+  etag-compare.d \
+  etag-save.d \
+  expect100-timeout.d \
+  fail-early.d \
+  fail-with-body.d \
+  fail.d \
+  false-start.d \
+  form-escape.d \
+  form-string.d \
+  form.d \
+  ftp-account.d \
+  ftp-alternative-to-user.d \
+  ftp-create-dirs.d \
+  ftp-method.d \
+  ftp-pasv.d \
+  ftp-port.d \
+  ftp-pret.d \
+  ftp-skip-pasv-ip.d \
+  ftp-ssl-ccc-mode.d \
+  ftp-ssl-ccc.d \
+  ftp-ssl-control.d \
+  get.d \
+  globoff.d \
+  happy-eyeballs-timeout-ms.d \
+  haproxy-protocol.d \
+  head.d \
+  header.d \
+  help.d \
+  hostpubmd5.d \
+  hostpubsha256.d \
+  hsts.d \
+  http0.9.d \
+  http1.0.d \
+  http1.1.d \
+  http2-prior-knowledge.d \
+  http2.d \
+  http3.d \
+  ignore-content-length.d \
+  include.d \
+  insecure.d \
+  interface.d \
+  ipv4.d \
+  ipv6.d \
+  json.d \
+  junk-session-cookies.d \
+  keepalive-time.d \
+  key-type.d \
+  key.d \
+  krb.d \
+  libcurl.d \
+  limit-rate.d \
+  list-only.d \
+  local-port.d \
+  location-trusted.d \
+  location.d \
+  login-options.d \
+  mail-auth.d \
+  mail-from.d \
+  mail-rcpt-allowfails.d \
+  mail-rcpt.d \
+  manual.d \
+  max-filesize.d \
+  max-redirs.d \
+  max-time.d \
+  metalink.d \
+  negotiate.d \
+  netrc-file.d \
+  netrc-optional.d \
+  netrc.d \
+  next.d \
+  no-alpn.d \
+  no-buffer.d \
+  no-clobber.d \
+  no-keepalive.d \
+  no-npn.d \
+  no-progress-meter.d \
+  no-sessionid.d \
+  noproxy.d \
+  ntlm-wb.d \
+  ntlm.d \
+  oauth2-bearer.d \
+  output-dir.d \
+  output.d \
+  parallel-immediate.d \
+  parallel-max.d \
+  parallel.d \
+  pass.d \
+  path-as-is.d \
+  pinnedpubkey.d \
+  post301.d \
+  post302.d \
+  post303.d \
+  preproxy.d \
+  progress-bar.d \
+  proto-default.d \
+  proto-redir.d \
+  proto.d \
+  proxy-anyauth.d \
+  proxy-basic.d \
+  proxy-cacert.d \
+  proxy-capath.d \
+  proxy-cert-type.d \
+  proxy-cert.d \
+  proxy-ciphers.d \
+  proxy-crlfile.d \
+  proxy-digest.d \
+  proxy-header.d \
+  proxy-insecure.d \
+  proxy-key-type.d \
+  proxy-key.d \
+  proxy-negotiate.d \
+  proxy-ntlm.d \
+  proxy-pass.d \
+  proxy-pinnedpubkey.d \
+  proxy-service-name.d \
+  proxy-ssl-allow-beast.d \
+  proxy-ssl-auto-client-cert.d \
+  proxy-tls13-ciphers.d \
+  proxy-tlsauthtype.d \
+  proxy-tlspassword.d \
+  proxy-tlsuser.d \
+  proxy-tlsv1.d \
+  proxy-user.d \
+  proxy.d \
+  proxy1.0.d \
+  proxytunnel.d \
+  pubkey.d \
+  quote.d \
+  random-file.d \
+  range.d \
+  raw.d \
+  referer.d \
+  remote-header-name.d \
+  remote-name-all.d \
+  remote-name.d \
+  remote-time.d \
+  remove-on-error.d \
+  request-target.d \
+  request.d \
+  resolve.d \
+  retry-all-errors.d \
+  retry-connrefused.d \
+  retry-delay.d \
+  retry-max-time.d \
+  retry.d \
+  sasl-authzid.d \
+  sasl-ir.d \
+  service-name.d \
+  show-error.d \
+  silent.d \
+  socks4.d \
+  socks4a.d \
+  socks5-basic.d \
+  socks5-gssapi-nec.d \
+  socks5-gssapi-service.d \
+  socks5-gssapi.d \
+  socks5-hostname.d \
+  socks5.d \
+  speed-limit.d \
+  speed-time.d \
+  ssl-allow-beast.d \
+  ssl-auto-client-cert.d \
+  ssl-no-revoke.d \
+  ssl-reqd.d \
+  ssl-revoke-best-effort.d \
+  ssl.d \
+  sslv2.d \
+  sslv3.d \
+  stderr.d \
+  styled-output.d \
+  suppress-connect-headers.d \
+  tcp-fastopen.d \
+  tcp-nodelay.d \
+  telnet-option.d \
+  tftp-blksize.d \
+  tftp-no-options.d \
+  time-cond.d \
+  tls-max.d \
+  tls13-ciphers.d \
+  tlsauthtype.d \
+  tlspassword.d \
+  tlsuser.d \
+  tlsv1.0.d \
+  tlsv1.1.d \
+  tlsv1.2.d \
+  tlsv1.3.d \
+  tlsv1.d \
+  tr-encoding.d \
+  trace-ascii.d \
+  trace-time.d \
+  trace.d \
+  unix-socket.d \
+  upload-file.d \
+  url.d \
+  use-ascii.d \
+  user-agent.d \
+  user.d \
+  verbose.d \
+  version.d \
+  write-out.d \
+  xattr.d
+
+OTHERPAGES = page-footer page-header
diff --git a/curl/docs/cmdline-opts/gen.pl b/curl/docs/cmdline-opts/gen.pl
new file mode 100644
index 0000000..2418526
--- /dev/null
+++ b/curl/docs/cmdline-opts/gen.pl
@@ -0,0 +1,611 @@
+#!/usr/bin/env perl
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2022, Daniel Stenberg, , et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+###########################################################################
+
+=begin comment
+
+This script generates the manpage.
+
+Example: gen.pl  [files] > curl.1
+
+Dev notes:
+
+We open *input* files in :crlf translation (a no-op on many platforms) in
+case we have CRLF line endings in Windows but a perl that defaults to LF.
+Unfortunately it seems some perls like msysgit can't handle a global input-only
+:crlf so it has to be specified on each file open for text input.
+
+=end comment
+=cut
+
+my %optshort;
+my %optlong;
+my %helplong;
+my %arglong;
+my %redirlong;
+my %protolong;
+my %catlong;
+
+use POSIX qw(strftime);
+my $date = strftime "%B %d %Y", localtime;
+my $year = strftime "%Y", localtime;
+my $version = "unknown";
+
+open(INC, "<../../include/curl/curlver.h");
+while() {
+    if($_ =~ /^#define LIBCURL_VERSION \"([0-9.]*)/) {
+        $version = $1;
+        last;
+    }
+}
+close(INC);
+
+# get the long name version, return the man page string
+sub manpageify {
+    my ($k)=@_;
+    my $l;
+    if($optlong{$k} ne "") {
+        # both short + long
+        $l = "\\fI-".$optlong{$k}.", --$k\\fP";
+    }
+    else {
+        # only long
+        $l = "\\fI--$k\\fP";
+    }
+    return $l;
+}
+
+sub printdesc {
+    my @desc = @_;
+    my $exam = 0;
+    for my $d (@desc) {
+        if($d =~ /\(Added in ([0-9.]+)\)/i) {
+            my $ver = $1;
+            if(too_old($ver)) {
+                $d =~ s/ *\(Added in $ver\)//gi;
+            }
+        }
+        if($d !~ /^.\\"/) {
+            # **bold**
+            $d =~ s/\*\*([^ ]*)\*\*/\\fB$1\\fP/g;
+            # *italics*
+            $d =~ s/\*([^ ]*)\*/\\fI$1\\fP/g;
+        }
+        if(!$exam && ($d =~ /^ /)) {
+            # start of example
+            $exam = 1;
+            print ".nf\n"; # no-fill
+        }
+        elsif($exam && ($d !~ /^ /)) {
+            # end of example
+            $exam = 0;
+            print ".fi\n"; # fill-in
+        }
+        # skip lines starting with space (examples)
+        if($d =~ /^[^ ]/) {
+            for my $k (keys %optlong) {
+                my $l = manpageify($k);
+                $d =~ s/--$k([^a-z0-9_-])(\W)/$l$1$2/;
+            }
+        }
+        # quote "bare" minuses in the output
+        $d =~ s/( |\\fI|^)--/$1\\-\\-/g;
+        $d =~ s/([ -]|\\fI|^)-/$1\\-/g;
+        # handle single quotes first on the line
+        $d =~ s/(\s*)\'/$1\\(aq/;
+        print $d;
+    }
+    if($exam) {
+        print ".fi\n"; # fill-in
+    }
+}
+
+sub seealso {
+    my($standalone, $data)=@_;
+    if($standalone) {
+        return sprintf
+            ".SH \"SEE ALSO\"\n$data\n";
+    }
+    else {
+        return "See also $data. ";
+    }
+}
+
+sub overrides {
+    my ($standalone, $data)=@_;
+    if($standalone) {
+        return ".SH \"OVERRIDES\"\n$data\n";
+    }
+    else {
+        return $data;
+    }
+}
+
+sub protocols {
+    my ($standalone, $data)=@_;
+    if($standalone) {
+        return ".SH \"PROTOCOLS\"\n$data\n";
+    }
+    else {
+        return "($data) ";
+    }
+}
+
+sub too_old {
+    my ($version)=@_;
+    my $a = 999999;
+    if($version =~ /^(\d+)\.(\d+)\.(\d+)/) {
+        $a = $1 * 1000 + $2 * 10 + $3;
+    }
+    elsif($version =~ /^(\d+)\.(\d+)/) {
+        $a = $1 * 1000 + $2 * 10;
+    }
+    if($a < 7300) {
+        # we consider everything before 7.30.0 to be too old to mention
+        # specific changes for
+        return 1;
+    }
+    return 0;
+}
+
+sub added {
+    my ($standalone, $data)=@_;
+    if(too_old($data)) {
+        # don't mention ancient additions
+        return "";
+    }
+    if($standalone) {
+        return ".SH \"ADDED\"\nAdded in curl version $data\n";
+    }
+    else {
+        return "Added in $data. ";
+    }
+}
+
+sub single {
+    my ($f, $standalone)=@_;
+    open(F, "<:crlf", "$f") ||
+        return 1;
+    my $short;
+    my $long;
+    my $tags;
+    my $added;
+    my $protocols;
+    my $arg;
+    my $mutexed;
+    my $requires;
+    my $category;
+    my $seealso;
+    my @examples; # there can be more than one
+    my $magic; # cmdline special option
+    my $line;
+    while() {
+        $line++;
+        if(/^Short: *(.)/i) {
+            $short=$1;
+        }
+        elsif(/^Long: *(.*)/i) {
+            $long=$1;
+        }
+        elsif(/^Added: *(.*)/i) {
+            $added=$1;
+        }
+        elsif(/^Tags: *(.*)/i) {
+            $tags=$1;
+        }
+        elsif(/^Arg: *(.*)/i) {
+            $arg=$1;
+        }
+        elsif(/^Magic: *(.*)/i) {
+            $magic=$1;
+        }
+        elsif(/^Mutexed: *(.*)/i) {
+            $mutexed=$1;
+        }
+        elsif(/^Protocols: *(.*)/i) {
+            $protocols=$1;
+        }
+        elsif(/^See-also: *(.*)/i) {
+            $seealso=$1;
+        }
+        elsif(/^Requires: *(.*)/i) {
+            $requires=$1;
+        }
+        elsif(/^Category: *(.*)/i) {
+            $category=$1;
+        }
+        elsif(/^Example: *(.*)/i) {
+            push @examples, $1;
+        }
+        elsif(/^Help: *(.*)/i) {
+            ;
+        }
+        elsif(/^---/) {
+            if(!$long) {
+                print STDERR "ERROR: no 'Long:' in $f\n";
+                return 1;
+            }
+            if(!$category) {
+                print STDERR "ERROR: no 'Category:' in $f\n";
+                return 2;
+            }
+            if(!$examples[0]) {
+                print STDERR "$f:$line:1:ERROR: no 'Example:' present\n";
+                return 2;
+            }
+            if(!$added) {
+                print STDERR "$f:$line:1:ERROR: no 'Added:' version present\n";
+                return 2;
+            }
+            if(!$seealso) {
+                print STDERR "$f:$line:1:ERROR: no 'See-also:' field present\n";
+                return 2;
+            }
+            last;
+        }
+        else {
+            chomp;
+            print STDERR "WARN: unrecognized line in $f, ignoring:\n:'$_';"
+        }
+    }
+    my @desc;
+    while() {
+        push @desc, $_;
+    }
+    close(F);
+    my $opt;
+    if(defined($short) && $long) {
+        $opt = "-$short, --$long";
+    }
+    elsif($short && !$long) {
+        $opt = "-$short";
+    }
+    elsif($long && !$short) {
+        $opt = "--$long";
+    }
+
+    if($arg) {
+        $opt .= " $arg";
+    }
+
+    # quote "bare" minuses in opt
+    $opt =~ s/( |^)--/$1\\-\\-/g;
+    $opt =~ s/( |^)-/$1\\-/g;
+    if($standalone) {
+        print ".TH curl 1 \"30 Nov 2016\" \"curl 7.52.0\" \"curl manual\"\n";
+        print ".SH OPTION\n";
+        print "curl $opt\n";
+    }
+    else {
+        print ".IP \"$opt\"\n";
+    }
+    if($protocols) {
+        print protocols($standalone, $protocols);
+    }
+
+    if($standalone) {
+        print ".SH DESCRIPTION\n";
+    }
+
+    printdesc(@desc);
+    undef @desc;
+
+    my @foot;
+    if($seealso) {
+        my @m=split(/ /, $seealso);
+        my $mstr;
+        my $and = 0;
+        my $num = scalar(@m);
+        if($num > 2) {
+            # use commas up to this point
+            $and = $num - 1;
+        }
+        my $i = 0;
+        for my $k (@m) {
+            if(!$helplong{$k}) {
+                print STDERR "$f:$line:1:WARN: see-also a non-existing option: $k\n";
+            }
+            my $l = manpageify($k);
+            my $sep = " and";
+            if($and && ($i < $and)) {
+                $sep = ",";
+            }
+            $mstr .= sprintf "%s$l", $mstr?"$sep ":"";
+            $i++;
+        }
+        push @foot, seealso($standalone, $mstr);
+    }
+    if($requires) {
+        my $l = manpageify($long);
+        push @foot, "$l requires that the underlying libcurl".
+            " was built to support $requires. ";
+    }
+    if($mutexed) {
+        my @m=split(/ /, $mutexed);
+        my $mstr;
+        for my $k (@m) {
+            if(!$helplong{$k}) {
+                print STDERR "WARN: $f mutexes a non-existing option: $k\n";
+            }
+            my $l = manpageify($k);
+            $mstr .= sprintf "%s$l", $mstr?" and ":"";
+        }
+        push @foot, overrides($standalone,
+                              "This option is mutually exclusive to $mstr. ");
+    }
+    if($examples[0]) {
+        my $s ="";
+        $s="s" if($examples[1]);
+        print "\nExample$s:\n.nf\n";
+        foreach my $e (@examples) {
+            $e =~ s!\$URL!https://example.com!g;
+            print " curl $e\n";
+        }
+        print ".fi\n";
+    }
+    if($added) {
+        push @foot, added($standalone, $added);
+    }
+    if($foot[0]) {
+        print "\n";
+        my $f = join("", @foot);
+        $f =~ s/ +\z//; # remove trailing space
+        print "$f\n";
+    }
+    return 0;
+}
+
+sub getshortlong {
+    my ($f)=@_;
+    open(F, "<:crlf", "$f");
+    my $short;
+    my $long;
+    my $help;
+    my $arg;
+    my $protocols;
+    my $category;
+    while() {
+        if(/^Short: (.)/i) {
+            $short=$1;
+        }
+        elsif(/^Long: (.*)/i) {
+            $long=$1;
+        }
+        elsif(/^Help: (.*)/i) {
+            $help=$1;
+        }
+        elsif(/^Arg: (.*)/i) {
+            $arg=$1;
+        }
+        elsif(/^Protocols: (.*)/i) {
+            $protocols=$1;
+        }
+        elsif(/^Category: (.*)/i) {
+            $category=$1;
+        }
+        elsif(/^---/) {
+            last;
+        }
+    }
+    close(F);
+    if($short) {
+        $optshort{$short}=$long;
+    }
+    if($long) {
+        $optlong{$long}=$short;
+        $helplong{$long}=$help;
+        $arglong{$long}=$arg;
+        $protolong{$long}=$protocols;
+        $catlong{$long}=$category;
+    }
+}
+
+sub indexoptions {
+    my (@files) = @_;
+    foreach my $f (@files) {
+        getshortlong($f);
+    }
+}
+
+sub header {
+    my ($f)=@_;
+    open(F, "<:crlf", "$f");
+    my @d;
+    while() {
+        s/%DATE/$date/g;
+        s/%VERSION/$version/g;
+        push @d, $_;
+    }
+    close(F);
+    printdesc(@d);
+}
+
+sub listhelp {
+    print <, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "tool_setup.h"
+#include "tool_help.h"
+
+/*
+ * DO NOT edit tool_listhelp.c manually.
+ * This source file is generated with the following command:
+
+  cd \$srcroot/docs/cmdline-opts
+  ./gen.pl listhelp *.d > \$srcroot/src/tool_listhelp.c
+ */
+
+const struct helptxt helptext[] = {
+HEAD
+        ;
+    foreach my $f (sort keys %helplong) {
+        my $long = $f;
+        my $short = $optlong{$long};
+        my @categories = split ' ', $catlong{$long};
+        my $bitmask;
+        my $opt;
+
+        if(defined($short) && $long) {
+            $opt = "-$short, --$long";
+        }
+        elsif($long && !$short) {
+            $opt = "    --$long";
+        }
+        for my $i (0 .. $#categories) {
+            $bitmask .= 'CURLHELP_' . uc $categories[$i];
+            # If not last element, append |
+            if($i < $#categories) {
+                $bitmask .= ' | ';
+            }
+        }
+        my $arg = $arglong{$long};
+        if($arg) {
+            $opt .= " $arg";
+        }
+        my $desc = $helplong{$f};
+        $desc =~ s/\"/\\\"/g; # escape double quotes
+
+        my $line = sprintf "  {\"%s\",\n   \"%s\",\n   %s},\n", $opt, $desc, $bitmask;
+
+        if(length($opt) > 78) {
+            print STDERR "WARN: the --$long name is too long\n";
+        }
+        elsif(length($desc) > 78) {
+            print STDERR "WARN: the --$long description is too long\n";
+        }
+        print $line;
+    }
+    print < [files]\n";
+}
+
+#------------------------------------------------------------------------
+
+my $cmd = shift @ARGV;
+my @files = @ARGV; # the rest are the files
+
+# learn all existing options
+indexoptions(@files);
+
+getargs($cmd, @files);
diff --git a/curl/docs/cmdline-opts/page-footer b/curl/docs/cmdline-opts/page-footer
new file mode 100644
index 0000000..4ba05cf
--- /dev/null
+++ b/curl/docs/cmdline-opts/page-footer
@@ -0,0 +1,321 @@
+.SH FILES
+.I ~/.curlrc
+.RS
+Default config file, see --config for details.
+.SH ENVIRONMENT
+The environment variables can be specified in lower case or upper case. The
+lower case version has precedence. http_proxy is an exception as it is only
+available in lower case.
+
+Using an environment variable to set the proxy has the same effect as using
+the --proxy option.
+
+.IP "http_proxy [protocol://][:port]"
+Sets the proxy server to use for HTTP.
+.IP "HTTPS_PROXY [protocol://][:port]"
+Sets the proxy server to use for HTTPS.
+.IP "[url-protocol]_PROXY [protocol://][:port]"
+Sets the proxy server to use for [url-protocol], where the protocol is a
+protocol that curl supports and as specified in a URL. FTP, FTPS, POP3, IMAP,
+SMTP, LDAP, etc.
+.IP "ALL_PROXY [protocol://][:port]"
+Sets the proxy server to use if no protocol-specific proxy is set.
+.IP "NO_PROXY "
+list of host names that should not go through any proxy. If set to an asterisk
+\&'*' only, it matches all hosts. Each name in this list is matched as either
+a domain name which contains the hostname, or the hostname itself.
+
+This environment variable disables use of the proxy even when specified with
+the --proxy option. That is
+.B NO_PROXY=direct.example.com curl -x http://proxy.example.com
+.B http://direct.example.com
+accesses the target URL directly, and
+.B NO_PROXY=direct.example.com curl -x http://proxy.example.com
+.B http://somewhere.example.com
+accesses the target URL through the proxy.
+
+The list of host names can also be include numerical IP addresses, and IPv6
+versions should then be given without enclosing brackets.
+
+IPv6 numerical addresses are compared as strings, so they will only match if
+the representations are the same: "::1" is the same as "::0:1" but they do not
+match.
+.IP "APPDATA "
+On Windows, this variable is used when trying to find the home directory. If
+the primary home variable are all unset.
+.IP "COLUMNS "
+If set, the specified number of characters will be used as the terminal width
+when the alternative progress-bar is shown. If not set, curl will try to
+figure it out using other ways.
+.IP "CURL_CA_BUNDLE "
+If set, will be used as the \fI--cacert\fP value.
+.IP "CURL_HOME "
+If set, is the first variable curl checks when trying to find its home
+directory. If not set, it continues to check \fBXDG_CONFIG_HOME\fP.
+.IP "CURL_SSL_BACKEND "
+If curl was built with support for "MultiSSL", meaning that it has built-in
+support for more than one TLS backend, this environment variable can be set to
+the case insensitive name of the particular backend to use when curl is
+invoked. Setting a name that is not a built-in alternative will make curl
+stay with the default.
+
+SSL backend names (case-insensitive): bearssl, gnutls, gskit, mbedtls,
+nss, openssl, rustls, schannel, secure-transport, wolfssl
+.IP "HOME "
+If set, this is used to find the home directory when that is needed. Like when
+looking for the default .curlrc. \fBCURL_HOME\fP and \fBXDG_CONFIG_HOME\fP
+have preference.
+.IP "QLOGDIR "
+If curl was built with HTTP/3 support, setting this environment variable to a
+local directory will make curl produce qlogs in that directory, using file
+names named after the destination connection id (in hex). Do note that these
+files can become rather large. Works with both QUIC backends.
+.IP SHELL
+Used on VMS when trying to detect if using a DCL or a "unix" shell.
+.IP "SSL_CERT_DIR "
+If set, will be used as the \fI--capath\fP value.
+.IP "SSL_CERT_FILE "
+If set, will be used as the \fI--cacert\fP value.
+.IP "SSLKEYLOGFILE "
+If you set this environment variable to a file name, curl will store TLS
+secrets from its connections in that file when invoked to enable you to
+analyze the TLS traffic in real time using network analyzing tools such as
+Wireshark. This works with the following TLS backends: OpenSSL, libressl,
+BoringSSL, GnuTLS, NSS and wolfSSL.
+.IP "USERPROFILE "
+On Windows, this variable is used when trying to find the home directory. If
+the other, primary, variable are all unset. If set, curl will use the path
+"$USERPROFILE\\Application Data".
+.IP "XDG_CONFIG_HOME "
+If \fBCURL_HOME\fP is not set, this variable is checked when looking for a
+default .curlrc file.
+.SH "PROXY PROTOCOL PREFIXES"
+The proxy string may be specified with a protocol:// prefix to specify
+alternative proxy protocols. (Added in 7.21.7)
+
+If no protocol is specified in the proxy string or if the string does not match
+a supported one, the proxy will be treated as an HTTP proxy.
+
+The supported proxy protocol prefixes are as follows:
+.IP "http://"
+Makes it use it as an HTTP proxy. The default if no scheme prefix is used.
+.IP "https://"
+Makes it treated as an **HTTPS** proxy.
+.IP "socks4://"
+Makes it the equivalent of --socks4
+.IP "socks4a://"
+Makes it the equivalent of --socks4a
+.IP "socks5://"
+Makes it the equivalent of --socks5
+.IP "socks5h://"
+Makes it the equivalent of --socks5-hostname
+.SH EXIT CODES
+There are a bunch of different error codes and their corresponding error
+messages that may appear under error conditions. At the time of this writing,
+the exit codes are:
+.IP 1
+Unsupported protocol. This build of curl has no support for this protocol.
+.IP 2
+Failed to initialize.
+.IP 3
+URL malformed. The syntax was not correct.
+.IP 4
+A feature or option that was needed to perform the desired request was not
+enabled or was explicitly disabled at build-time. To make curl able to do
+this, you probably need another build of libcurl.
+.IP 5
+Could not resolve proxy. The given proxy host could not be resolved.
+.IP 6
+Could not resolve host. The given remote host could not be resolved.
+.IP 7
+Failed to connect to host.
+.IP 8
+Weird server reply. The server sent data curl could not parse.
+.IP 9
+FTP access denied. The server denied login or denied access to the particular
+resource or directory you wanted to reach. Most often you tried to change to a
+directory that does not exist on the server.
+.IP 10
+FTP accept failed. While waiting for the server to connect back when an active
+FTP session is used, an error code was sent over the control connection or
+similar.
+.IP 11
+FTP weird PASS reply. Curl could not parse the reply sent to the PASS request.
+.IP 12
+During an active FTP session while waiting for the server to connect back to
+curl, the timeout expired.
+.IP 13
+FTP weird PASV reply, Curl could not parse the reply sent to the PASV request.
+.IP 14
+FTP weird 227 format. Curl could not parse the 227-line the server sent.
+.IP 15
+FTP cannot use host. Could not resolve the host IP we got in the 227-line.
+.IP 16
+HTTP/2 error. A problem was detected in the HTTP2 framing layer. This is
+somewhat generic and can be one out of several problems, see the error message
+for details.
+.IP 17
+FTP could not set binary. Could not change transfer method to binary.
+.IP 18
+Partial file. Only a part of the file was transferred.
+.IP 19
+FTP could not download/access the given file, the RETR (or similar) command
+failed.
+.IP 21
+FTP quote error. A quote command returned error from the server.
+.IP 22
+HTTP page not retrieved. The requested URL was not found or returned another
+error with the HTTP error code being 400 or above. This return code only
+appears if --fail is used.
+.IP 23
+Write error. Curl could not write data to a local filesystem or similar.
+.IP 25
+FTP could not STOR file. The server denied the STOR operation, used for FTP
+uploading.
+.IP 26
+Read error. Various reading problems.
+.IP 27
+Out of memory. A memory allocation request failed.
+.IP 28
+Operation timeout. The specified time-out period was reached according to the
+conditions.
+.IP 30
+FTP PORT failed. The PORT command failed. Not all FTP servers support the PORT
+command, try doing a transfer using PASV instead!
+.IP 31
+FTP could not use REST. The REST command failed. This command is used for
+resumed FTP transfers.
+.IP 33
+HTTP range error. The range "command" did not work.
+.IP 34
+HTTP post error. Internal post-request generation error.
+.IP 35
+SSL connect error. The SSL handshaking failed.
+.IP 36
+Bad download resume. Could not continue an earlier aborted download.
+.IP 37
+FILE could not read file. Failed to open the file. Permissions?
+.IP 38
+LDAP cannot bind. LDAP bind operation failed.
+.IP 39
+LDAP search failed.
+.IP 41
+Function not found. A required LDAP function was not found.
+.IP 42
+Aborted by callback. An application told curl to abort the operation.
+.IP 43
+Internal error. A function was called with a bad parameter.
+.IP 45
+Interface error. A specified outgoing interface could not be used.
+.IP 47
+Too many redirects. When following redirects, curl hit the maximum amount.
+.IP 48
+Unknown option specified to libcurl. This indicates that you passed a weird
+option to curl that was passed on to libcurl and rejected. Read up in the
+manual!
+.IP 49
+Malformed telnet option.
+.IP 51
+The peer's SSL certificate or SSH MD5 fingerprint was not OK.
+.IP 52
+The server did not reply anything, which here is considered an error.
+.IP 53
+SSL crypto engine not found.
+.IP 54
+Cannot set SSL crypto engine as default.
+.IP 55
+Failed sending network data.
+.IP 56
+Failure in receiving network data.
+.IP 58
+Problem with the local certificate.
+.IP 59
+Could not use specified SSL cipher.
+.IP 60
+Peer certificate cannot be authenticated with known CA certificates.
+.IP 61
+Unrecognized transfer encoding.
+.IP 62
+Invalid LDAP URL.
+.IP 63
+Maximum file size exceeded.
+.IP 64
+Requested FTP SSL level failed.
+.IP 65
+Sending the data requires a rewind that failed.
+.IP 66
+Failed to initialise SSL Engine.
+.IP 67
+The user name, password, or similar was not accepted and curl failed to log in.
+.IP 68
+File not found on TFTP server.
+.IP 69
+Permission problem on TFTP server.
+.IP 70
+Out of disk space on TFTP server.
+.IP 71
+Illegal TFTP operation.
+.IP 72
+Unknown TFTP transfer ID.
+.IP 73
+File already exists (TFTP).
+.IP 74
+No such user (TFTP).
+.IP 75
+Character conversion failed.
+.IP 76
+Character conversion functions required.
+.IP 77
+Problem reading the SSL CA cert (path? access rights?).
+.IP 78
+The resource referenced in the URL does not exist.
+.IP 79
+An unspecified error occurred during the SSH session.
+.IP 80
+Failed to shut down the SSL connection.
+.IP 82
+Could not load CRL file, missing or wrong format (added in 7.19.0).
+.IP 83
+Issuer check failed (added in 7.19.0).
+.IP 84
+The FTP PRET command failed.
+.IP 85
+Mismatch of RTSP CSeq numbers.
+.IP 86
+Mismatch of RTSP Session Identifiers.
+.IP 87
+Unable to parse FTP file list.
+.IP 88
+FTP chunk callback reported error.
+.IP 89
+No connection available, the session will be queued.
+.IP 90
+SSL public key does not matched pinned public key.
+.IP 91
+Invalid SSL certificate status.
+.IP 92
+Stream error in HTTP/2 framing layer.
+.IP 93
+An API function was called from inside a callback.
+.IP 94
+An authentication function returned an error.
+.IP 95
+A problem was detected in the HTTP/3 layer. This is somewhat generic and can
+be one out of several problems, see the error message for details.
+.IP 96
+QUIC connection error. This error may be caused by an SSL library error. QUIC
+is the protocol used for HTTP/3 transfers.
+.IP XX
+More error codes will appear here in future releases. The existing ones
+are meant to never change.
+.SH BUGS
+If you experience any problems with curl, submit an issue in the project's bug
+tracker on GitHub: https://github.com/curl/curl/issues
+.SH AUTHORS / CONTRIBUTORS
+Daniel Stenberg is the main author, but the whole list of contributors is
+found in the separate THANKS file.
+.SH WWW
+https://curl.se
+.SH "SEE ALSO"
+.BR ftp (1),
+.BR wget (1)
diff --git a/curl/docs/cmdline-opts/page-header b/curl/docs/cmdline-opts/page-header
new file mode 100644
index 0000000..900d21d
--- /dev/null
+++ b/curl/docs/cmdline-opts/page-header
@@ -0,0 +1,197 @@
+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
+.\" *                            | (__| |_| |  _ <| |___
+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 - 2021, Daniel Stenberg, , et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
+.\" * are also available at https://curl.se/docs/copyright.html.
+.\" *
+.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+.\" * copies of the Software, and permit persons to whom the Software is
+.\" * furnished to do so, under the terms of the COPYING file.
+.\" *
+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+.\" * KIND, either express or implied.
+.\" *
+.\" **************************************************************************
+.\"
+.\" DO NOT EDIT. Generated by the curl project gen.pl man page generator.
+.\"
+.TH curl 1 "%DATE" "curl %VERSION" "curl Manual"
+.SH NAME
+curl \- transfer a URL
+.SH SYNOPSIS
+.B curl [options / URLs]
+.SH DESCRIPTION
+**curl** is a tool for transferring data from or to a server. It supports these
+protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS,
+LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP,
+SMTPS, TELNET or TFTP. The command is designed to work without user
+interaction.
+
+curl offers a busload of useful tricks like proxy support, user
+authentication, FTP upload, HTTP post, SSL connections, cookies, file transfer
+resume and more. As you will see below, the number of features will make your
+head spin.
+
+curl is powered by libcurl for all transfer-related features. See
+*libcurl(3)* for details.
+.SH URL
+The URL syntax is protocol-dependent. You find a detailed description in
+RFC 3986.
+
+You can specify multiple URLs or parts of URLs by writing part sets within
+braces and quoting the URL as in:
+
+  "http://site.{one,two,three}.com"
+
+or you can get sequences of alphanumeric series by using [] as in:
+
+  "ftp://ftp.example.com/file[1-100].txt"
+
+  "ftp://ftp.example.com/file[001-100].txt"    (with leading zeros)
+
+  "ftp://ftp.example.com/file[a-z].txt"
+
+Nested sequences are not supported, but you can use several ones next to each
+other:
+
+  "http://example.com/archive[1996-1999]/vol[1-4]/part{a,b,c}.html"
+
+You can specify any amount of URLs on the command line. They will be fetched
+in a sequential manner in the specified order. You can specify command line
+options and URLs mixed and in any order on the command line.
+
+You can specify a step counter for the ranges to get every Nth number or
+letter:
+
+  "http://example.com/file[1-100:10].txt"
+
+  "http://example.com/file[a-z:2].txt"
+
+When using [] or {} sequences when invoked from a command line prompt, you
+probably have to put the full URL within double quotes to avoid the shell from
+interfering with it. This also goes for other characters treated special, like
+for example '&', '?' and '*'.
+
+Provide the IPv6 zone index in the URL with an escaped percentage sign and the
+interface name. Like in
+
+  "http://[fe80::3%25eth0]/"
+
+If you specify URL without protocol:// prefix, curl will attempt to guess what
+protocol you might want. It will then default to HTTP but try other protocols
+based on often-used host name prefixes. For example, for host names starting
+with "ftp." curl will assume you want to speak FTP.
+
+curl will do its best to use what you pass to it as a URL. It is not trying to
+validate it as a syntactically correct URL by any means but is fairly liberal
+with what it accepts.
+
+curl will attempt to re-use connections for multiple file transfers, so that
+getting many files from the same server will not do multiple connects /
+handshakes. This improves speed. Of course this is only done on files
+specified on a single command line and cannot be used between separate curl
+invocations.
+.SH OUTPUT
+If not told otherwise, curl writes the received data to stdout. It can be
+instructed to instead save that data into a local file, using the --output or
+--remote-name options. If curl is given multiple URLs to transfer on the
+command line, it similarly needs multiple options for where to save them.
+
+curl does not parse or otherwise "understand" the content it gets or writes as
+output. It does no encoding or decoding, unless explicitly asked to with
+dedicated command line options.
+.SH PROTOCOLS
+curl supports numerous protocols, or put in URL terms: schemes. Your
+particular build may not support them all.
+.IP DICT
+Lets you lookup words using online dictionaries.
+.IP FILE
+Read or write local files. curl does not support accessing file:// URL
+remotely, but when running on Microsoft Windows using the native UNC approach
+will work.
+.IP FTP(S)
+curl supports the File Transfer Protocol with a lot of tweaks and levers. With
+or without using TLS.
+.IP GOPHER(S)
+Retrieve files.
+.IP HTTP(S)
+curl supports HTTP with numerous options and variations. It can speak HTTP
+version 0.9, 1.0, 1.1, 2 and 3 depending on build options and the correct
+command line options.
+.IP IMAP(S)
+Using the mail reading protocol, curl can "download" emails for you. With or
+without using TLS.
+.IP LDAP(S)
+curl can do directory lookups for you, with or without TLS.
+.IP MQTT
+curl supports MQTT version 3. Downloading over MQTT equals "subscribe" to a
+topic while uploading/posting equals "publish" on a topic. MQTT over TLS is
+not supported (yet).
+.IP POP3(S)
+Downloading from a pop3 server means getting a mail. With or without using
+TLS.
+.IP RTMP(S)
+The Realtime Messaging Protocol is primarily used to server streaming media
+and curl can download it.
+.IP RTSP
+curl supports RTSP 1.0 downloads.
+.IP SCP
+curl supports SSH version 2 scp transfers.
+.IP SFTP
+curl supports SFTP (draft 5) done over SSH version 2.
+.IP SMB(S)
+curl supports SMB version 1 for upload and download.
+.IP SMTP(S)
+Uploading contents to an SMTP server means sending an email. With or without
+TLS.
+.IP TELNET
+Telling curl to fetch a telnet URL starts an interactive session where it
+sends what it reads on stdin and outputs what the server sends it.
+.IP TFTP
+curl can do TFTP downloads and uploads.
+.SH "PROGRESS METER"
+curl normally displays a progress meter during operations, indicating the
+amount of transferred data, transfer speeds and estimated time left, etc. The
+progress meter displays number of bytes and the speeds are in bytes per
+second. The suffixes (k, M, G, T, P) are 1024 based. For example 1k is 1024
+bytes. 1M is 1048576 bytes.
+
+curl displays this data to the terminal by default, so if you invoke curl to
+do an operation and it is about to write data to the terminal, it
+*disables* the progress meter as otherwise it would mess up the output
+mixing progress meter and response data.
+
+If you want a progress meter for HTTP POST or PUT requests, you need to
+redirect the response output to a file, using shell redirect (>), --output or
+similar.
+
+This does not apply to FTP upload as that operation does not spit out any
+response data to the terminal.
+
+If you prefer a progress "bar" instead of the regular meter, --progress-bar is
+your friend. You can also disable the progress meter completely with the
+--silent option.
+.SH OPTIONS
+Options start with one or two dashes. Many of the options require an
+additional value next to them.
+
+The short "single-dash" form of the options, -d for example, may be used with
+or without a space between it and its value, although a space is a recommended
+separator. The long "double-dash" form, --data for example, requires a space
+between it and its value.
+
+Short version options that do not need any additional values can be used
+immediately next to each other, like for example you can specify all the
+options -O, -L and -v at once as -OLv.
+
+In general, all boolean options are enabled with --**option** and yet again
+disabled with --**no-**option. That is, you use the same option name but
+prefix it with "no-". However, in this list we mostly only list and show the
+--option version of them.
diff --git a/curl/docs/curl-config.1 b/curl/docs/curl-config.1
new file mode 100644
index 0000000..abeb021
--- /dev/null
+++ b/curl/docs/curl-config.1
@@ -0,0 +1,103 @@
+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
+.\" *                            | (__| |_| |  _ <| |___
+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, , et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
+.\" * are also available at https://curl.se/docs/copyright.html.
+.\" *
+.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+.\" * copies of the Software, and permit persons to whom the Software is
+.\" * furnished to do so, under the terms of the COPYING file.
+.\" *
+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+.\" * KIND, either express or implied.
+.\" *
+.\" **************************************************************************
+.\"
+.TH curl-config 1 "November 04, 2020" "Curl 7.83.1" "curl-config manual"
+
+.SH NAME
+curl-config \- Get information about a libcurl installation
+.SH SYNOPSIS
+.B curl-config [options]
+.SH DESCRIPTION
+.B curl-config
+displays information about the curl and libcurl installation.
+.SH OPTIONS
+.IP "--ca"
+Displays the built-in path to the CA cert bundle this libcurl uses.
+.IP "--cc"
+Displays the compiler used to build libcurl.
+.IP "--cflags"
+Set of compiler options (CFLAGS) to use when compiling files that use
+libcurl. Currently that is only the include path to the curl include files.
+.IP "--checkfor [version]"
+Specify the oldest possible libcurl version string you want, and this
+script will return 0 if the current installation is new enough or it
+returns 1 and outputs a text saying that the current version is not new
+enough. (Added in 7.15.4)
+.IP "--configure"
+Displays the arguments given to configure when building curl.
+.IP "--feature"
+Lists what particular main features the installed libcurl was built with. At
+the time of writing, this list may include SSL, KRB4 or IPv6. Do not assume
+any particular order. The keywords will be separated by newlines. There may be
+none, one, or several keywords in the list.
+.IP "--help"
+Displays the available options.
+.IP "--libs"
+Shows the complete set of libs and other linker options you will need in order
+to link your application with libcurl.
+.IP "--prefix"
+This is the prefix used when libcurl was installed. Libcurl is then installed
+in $prefix/lib and its header files are installed in $prefix/include and so
+on. The prefix is set with "configure --prefix".
+.IP "--protocols"
+Lists what particular protocols the installed libcurl was built to support. At
+the time of writing, this list may include HTTP, HTTPS, FTP, FTPS, FILE,
+TELNET, LDAP, DICT. Do not assume any particular order. The protocols will
+be listed using uppercase and are separated by newlines. There may be none,
+one, or several protocols in the list. (Added in 7.13.0)
+.IP "--ssl-backends"
+Lists the SSL backends that were enabled when libcurl was built. It might be
+no, one or several names. If more than one name, they will appear
+comma-separated. (Added in 7.58.0)
+.IP "--static-libs"
+Shows the complete set of libs and other linker options you will need in order
+to link your application with libcurl statically. (Added in 7.17.1)
+.IP "--version"
+Outputs version information about the installed libcurl.
+.IP "--vernum"
+Outputs version information about the installed libcurl, in numerical mode.
+This outputs the version number, in hexadecimal, with 8 bits for each part:
+major, minor, and patch. So that libcurl 7.7.4 would appear as 070704 and libcurl
+12.13.14 would appear as 0c0d0e... Note that the initial zero might be
+omitted. (This option was broken in the 7.15.0 release.)
+.SH "EXAMPLES"
+What linker options do I need when I link with libcurl?
+
+  $ curl-config --libs
+
+What compiler options do I need when I compile using libcurl functions?
+
+  $ curl-config --cflags
+
+How do I know if libcurl was built with SSL support?
+
+  $ curl-config --feature | grep SSL
+
+What's the installed libcurl version?
+
+  $ curl-config --version
+
+How do I build a single file with a one-line command?
+
+  $ `curl-config --cc --cflags` -o example example.c `curl-config --libs`
+.SH "SEE ALSO"
+.BR curl (1)
diff --git a/curl/docs/curl.1 b/curl/docs/curl.1
new file mode 100644
index 0000000..cfcfa50
--- /dev/null
+++ b/curl/docs/curl.1
@@ -0,0 +1,5149 @@
+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
+.\" *                            | (__| |_| |  _ <| |___
+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 \- 2021, Daniel Stenberg, , et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
+.\" * are also available at https://curl.se/docs/copyright.html.
+.\" *
+.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+.\" * copies of the Software, and permit persons to whom the Software is
+.\" * furnished to do so, under the terms of the COPYING file.
+.\" *
+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+.\" * KIND, either express or implied.
+.\" *
+.\" **************************************************************************
+.\"
+.\" DO NOT EDIT. Generated by the curl project gen.pl man page generator.
+.\"
+.TH curl 1 "May 11 2022" "curl 7.83.1" "curl Manual"
+.SH NAME
+curl \- transfer a URL
+.SH SYNOPSIS
+.B curl [options / URLs]
+.SH DESCRIPTION
+\fBcurl\fP is a tool for transferring data from or to a server. It supports these
+protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS,
+LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP,
+SMTPS, TELNET or TFTP. The command is designed to work without user
+interaction.
+
+curl offers a busload of useful tricks like proxy support, user
+authentication, FTP upload, HTTP post, SSL connections, cookies, file transfer
+resume and more. As you will see below, the number of features will make your
+head spin.
+
+curl is powered by libcurl for all transfer-related features. See
+\fIlibcurl(3)\fP for details.
+.SH URL
+The URL syntax is protocol-dependent. You find a detailed description in
+RFC 3986.
+
+You can specify multiple URLs or parts of URLs by writing part sets within
+braces and quoting the URL as in:
+
+.nf
+  "http://site.{one,two,three}.com"
+.fi
+
+or you can get sequences of alphanumeric series by using [] as in:
+
+.nf
+  "ftp://ftp.example.com/file[1-100].txt"
+.fi
+
+.nf
+  "ftp://ftp.example.com/file[001-100].txt"    (with leading zeros)
+.fi
+
+.nf
+  "ftp://ftp.example.com/file[a-z].txt"
+.fi
+
+Nested sequences are not supported, but you can use several ones next to each
+other:
+
+.nf
+  "http://example.com/archive[1996-1999]/vol[1-4]/part{a,b,c}.html"
+.fi
+
+You can specify any amount of URLs on the command line. They will be fetched
+in a sequential manner in the specified order. You can specify command line
+options and URLs mixed and in any order on the command line.
+
+You can specify a step counter for the ranges to get every Nth number or
+letter:
+
+.nf
+  "http://example.com/file[1-100:10].txt"
+.fi
+
+.nf
+  "http://example.com/file[a-z:2].txt"
+.fi
+
+When using [] or {} sequences when invoked from a command line prompt, you
+probably have to put the full URL within double quotes to avoid the shell from
+interfering with it. This also goes for other characters treated special, like
+for example \(aq&', '?' and '*'.
+
+Provide the IPv6 zone index in the URL with an escaped percentage sign and the
+interface name. Like in
+
+.nf
+  "http://[fe80::3%25eth0]/"
+.fi
+
+If you specify URL without protocol:// prefix, curl will attempt to guess what
+protocol you might want. It will then default to HTTP but try other protocols
+based on often-used host name prefixes. For example, for host names starting
+with "ftp." curl will assume you want to speak FTP.
+
+curl will do its best to use what you pass to it as a URL. It is not trying to
+validate it as a syntactically correct URL by any means but is fairly liberal
+with what it accepts.
+
+curl will attempt to re-use connections for multiple file transfers, so that
+getting many files from the same server will not do multiple connects /
+handshakes. This improves speed. Of course this is only done on files
+specified on a single command line and cannot be used between separate curl
+invocations.
+.SH OUTPUT
+If not told otherwise, curl writes the received data to stdout. It can be
+instructed to instead save that data into a local file, using the \-\-output or
+\-\-remote-name options. If curl is given multiple URLs to transfer on the
+command line, it similarly needs multiple options for where to save them.
+
+curl does not parse or otherwise "understand" the content it gets or writes as
+output. It does no encoding or decoding, unless explicitly asked to with
+dedicated command line options.
+.SH PROTOCOLS
+curl supports numerous protocols, or put in URL terms: schemes. Your
+particular build may not support them all.
+.IP DICT
+Lets you lookup words using online dictionaries.
+.IP FILE
+Read or write local files. curl does not support accessing file:// URL
+remotely, but when running on Microsoft Windows using the native UNC approach
+will work.
+.IP FTP(S)
+curl supports the File Transfer Protocol with a lot of tweaks and levers. With
+or without using TLS.
+.IP GOPHER(S)
+Retrieve files.
+.IP HTTP(S)
+curl supports HTTP with numerous options and variations. It can speak HTTP
+version 0.9, 1.0, 1.1, 2 and 3 depending on build options and the correct
+command line options.
+.IP IMAP(S)
+Using the mail reading protocol, curl can "download" emails for you. With or
+without using TLS.
+.IP LDAP(S)
+curl can do directory lookups for you, with or without TLS.
+.IP MQTT
+curl supports MQTT version 3. Downloading over MQTT equals "subscribe" to a
+topic while uploading/posting equals "publish" on a topic. MQTT over TLS is
+not supported (yet).
+.IP POP3(S)
+Downloading from a pop3 server means getting a mail. With or without using
+TLS.
+.IP RTMP(S)
+The Realtime Messaging Protocol is primarily used to server streaming media
+and curl can download it.
+.IP RTSP
+curl supports RTSP 1.0 downloads.
+.IP SCP
+curl supports SSH version 2 scp transfers.
+.IP SFTP
+curl supports SFTP (draft 5) done over SSH version 2.
+.IP SMB(S)
+curl supports SMB version 1 for upload and download.
+.IP SMTP(S)
+Uploading contents to an SMTP server means sending an email. With or without
+TLS.
+.IP TELNET
+Telling curl to fetch a telnet URL starts an interactive session where it
+sends what it reads on stdin and outputs what the server sends it.
+.IP TFTP
+curl can do TFTP downloads and uploads.
+.SH "PROGRESS METER"
+curl normally displays a progress meter during operations, indicating the
+amount of transferred data, transfer speeds and estimated time left, etc. The
+progress meter displays number of bytes and the speeds are in bytes per
+second. The suffixes (k, M, G, T, P) are 1024 based. For example 1k is 1024
+bytes. 1M is 1048576 bytes.
+
+curl displays this data to the terminal by default, so if you invoke curl to
+do an operation and it is about to write data to the terminal, it
+\fIdisables\fP the progress meter as otherwise it would mess up the output
+mixing progress meter and response data.
+
+If you want a progress meter for HTTP POST or PUT requests, you need to
+redirect the response output to a file, using shell redirect (>), \-\-output or
+similar.
+
+This does not apply to FTP upload as that operation does not spit out any
+response data to the terminal.
+
+If you prefer a progress "bar" instead of the regular meter, \-\-progress-bar is
+your friend. You can also disable the progress meter completely with the
+\-\-silent option.
+.SH OPTIONS
+Options start with one or two dashes. Many of the options require an
+additional value next to them.
+
+The short "single-dash" form of the options, \-d for example, may be used with
+or without a space between it and its value, although a space is a recommended
+separator. The long "double-dash" form, \-\-data for example, requires a space
+between it and its value.
+
+Short version options that do not need any additional values can be used
+immediately next to each other, like for example you can specify all the
+options \-O, \-L and \-v at once as \-OLv.
+
+In general, all boolean options are enabled with \-\-\fBoption\fP and yet again
+disabled with \-\-\fBno-\fPoption. That is, you use the same option name but
+prefix it with "no-". However, in this list we mostly only list and show the
+\-\-option version of them.
+.IP "\-\-abstract-unix-socket "
+(HTTP) Connect through an abstract Unix domain socket, instead of using the network.
+Note: netstat shows the path of an abstract socket prefixed with \(aq@', however
+the  argument should not have this leading character.
+
+Example:
+.nf
+ curl --abstract-unix-socket socketpath https://example.com
+.fi
+
+See also \fI--unix-socket\fP. Added in 7.53.0.
+.IP "\-\-alt-svc "
+(HTTPS) This option enables the alt-svc parser in curl. If the file name points to an
+existing alt-svc cache file, that will be used. After a completed transfer,
+the cache will be saved to the file name again if it has been modified.
+
+Specify a "" file name (zero length) to avoid loading/saving and make curl
+just handle the cache in memory.
+
+If this option is used several times, curl will load contents from all the
+files but the last one will be used for saving.
+
+Example:
+.nf
+ curl --alt-svc svc.txt https://example.com
+.fi
+
+See also \fI--resolve\fP and \fI--connect-to\fP. Added in 7.64.1.
+.IP "\-\-anyauth"
+(HTTP) Tells curl to figure out authentication method by itself, and use the most
+secure one the remote site claims to support. This is done by first doing a
+request and checking the response-headers, thus possibly inducing an extra
+network round-trip. This is used instead of setting a specific authentication
+method, which you can do with \fI\-\-basic\fP, \fI\-\-digest\fP, \fI\-\-ntlm\fP, and \fI\-\-negotiate\fP.
+
+Using \-\-anyauth is not recommended if you do uploads from stdin, since it may
+require data to be sent twice and then the client must be able to rewind. If
+the need should arise when uploading from stdin, the upload operation will
+fail.
+
+Used together with \fI\-u, \-\-user\fP.
+
+Example:
+.nf
+ curl --anyauth --user me:pwd https://example.com
+.fi
+
+See also \fI--proxy-anyauth\fP, \fI--basic\fP and \fI--digest\fP.
+.IP "\-a, \-\-append"
+(FTP SFTP) When used in an upload, this makes curl append to the target file instead of
+overwriting it. If the remote file does not exist, it will be created. Note
+that this flag is ignored by some SFTP servers (including OpenSSH).
+
+Example:
+.nf
+ curl --upload-file local --append ftp://example.com/
+.fi
+
+See also \fI-r, --range\fP and \fI-C, --continue-at\fP.
+.IP "\-\-aws-sigv4 "
+Use AWS V4 signature authentication in the transfer.
+
+The provider argument is a string that is used by the algorithm when creating
+outgoing authentication headers.
+
+The region argument is a string that points to a geographic area of
+a resources collection (region-code) when the region name is omitted from
+the endpoint.
+
+The service argument is a string that points to a function provided by a cloud
+(service-code) when the service name is omitted from the endpoint.
+
+Example:
+.nf
+ curl --aws-sigv4 "aws:amz:east-2:es" --user "key:secret" https://example.com
+.fi
+
+See also \fI--basic\fP and \fI-u, --user\fP. Added in 7.75.0.
+.IP "\-\-basic"
+(HTTP) Tells curl to use HTTP Basic authentication with the remote host. This is the
+default and this option is usually pointless, unless you use it to override a
+previously set option that sets a different authentication method (such as
+\fI\-\-ntlm\fP, \fI\-\-digest\fP, or \fI\-\-negotiate\fP).
+
+Used together with \fI\-u, \-\-user\fP.
+
+Example:
+.nf
+ curl -u name:password --basic https://example.com
+.fi
+
+See also \fI--proxy-basic\fP.
+.IP "\-\-cacert "
+(TLS) Tells curl to use the specified certificate file to verify the peer. The file
+may contain multiple CA certificates. The certificate(s) must be in PEM
+format. Normally curl is built to use a default file for this, so this option
+is typically used to alter that default file.
+
+curl recognizes the environment variable named \(aqCURL_CA_BUNDLE' if it is
+set, and uses the given path as a path to a CA cert bundle. This option
+overrides that variable.
+
+The windows version of curl will automatically look for a CA certs file named
+\(aqcurl-ca-bundle.crt', either in the same directory as curl.exe, or in the
+Current Working Directory, or in any folder along your PATH.
+
+If curl is built against the NSS SSL library, the NSS PEM PKCS#11 module
+(libnsspem.so) needs to be available for this option to work properly.
+
+(iOS and macOS only) If curl is built against Secure Transport, then this
+option is supported for backward compatibility with other SSL engines, but it
+should not be set. If the option is not set, then curl will use the
+certificates in the system and user Keychain to verify the peer, which is the
+preferred method of verifying the peer\(aqs certificate chain.
+
+(Schannel only) This option is supported for Schannel in Windows 7 or later
+with libcurl 7.60 or later. This option is supported for backward
+compatibility with other SSL engines; instead it is recommended to use
+Windows\(aq store of root certificates (the default for Schannel).
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --cacert CA-file.txt https://example.com
+.fi
+
+See also \fI--capath\fP and \fI-k, --insecure\fP.
+.IP "\-\-capath "
+(TLS) Tells curl to use the specified certificate directory to verify the
+peer. Multiple paths can be provided by separating them with ":" (e.g.
+\&"path1:path2:path3"). The certificates must be in PEM format, and if curl is
+built against OpenSSL, the directory must have been processed using the
+c_rehash utility supplied with OpenSSL. Using \-\-capath can allow
+OpenSSL-powered curl to make SSL-connections much more efficiently than using
+\-\-cacert if the \-\-cacert file contains many CA certificates.
+
+If this option is set, the default capath value will be ignored, and if it is
+used several times, the last one will be used.
+
+Example:
+.nf
+ curl --capath /local/directory https://example.com
+.fi
+
+See also \fI--cacert\fP and \fI-k, --insecure\fP.
+.IP "\-\-cert-status"
+(TLS) Tells curl to verify the status of the server certificate by using the
+Certificate Status Request (aka. OCSP stapling) TLS extension.
+
+If this option is enabled and the server sends an invalid (e.g. expired)
+response, if the response suggests that the server certificate has been revoked,
+or no response at all is received, the verification fails.
+
+This is currently only implemented in the OpenSSL, GnuTLS and NSS backends.
+
+Example:
+.nf
+ curl --cert-status https://example.com
+.fi
+
+See also \fI--pinnedpubkey\fP. Added in 7.41.0.
+.IP "\-\-cert-type "
+(TLS) Tells curl what type the provided client certificate is using. PEM, DER, ENG
+and P12 are recognized types.
+
+The default type depends on the TLS backend and is usually PEM, however for
+Secure Transport and Schannel it is P12. If \-\-cert is a pkcs11: URI then ENG is
+the default type.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --cert-type PEM --cert file https://example.com
+.fi
+
+See also \fI-E, --cert\fP, \fI--key\fP and \fI--key-type\fP.
+.IP "\-E, \-\-cert "
+(TLS) Tells curl to use the specified client certificate file when getting a file
+with HTTPS, FTPS or another SSL-based protocol. The certificate must be in
+PKCS#12 format if using Secure Transport, or PEM format if using any other
+engine. If the optional password is not specified, it will be queried for on
+the terminal. Note that this option assumes a \&"certificate" file that is the
+private key and the client certificate concatenated! See \-\-cert and \-\-key to
+specify them independently.
+
+If curl is built against the NSS SSL library then this option can tell
+curl the nickname of the certificate to use within the NSS database defined
+by the environment variable SSL_DIR (or by default /etc/pki/nssdb). If the
+NSS PEM PKCS#11 module (libnsspem.so) is available then PEM files may be
+loaded. If you want to use a file from the current directory, please precede
+it with "./" prefix, in order to avoid confusion with a nickname. If the
+nickname contains ":", it needs to be preceded by "\\" so that it is not
+recognized as password delimiter. If the nickname contains "\\", it needs to
+be escaped as "\\\\" so that it is not recognized as an escape character.
+
+If curl is built against OpenSSL library, and the engine pkcs11 is available,
+then a PKCS#11 URI (RFC 7512) can be used to specify a certificate located in
+a PKCS#11 device. A string beginning with "pkcs11:" will be interpreted as a
+PKCS#11 URI. If a PKCS#11 URI is provided, then the \-\-engine option will be set
+as "pkcs11" if none was provided and the \-\-cert-type option will be set as
+"ENG" if none was provided.
+
+(iOS and macOS only) If curl is built against Secure Transport, then the
+certificate string can either be the name of a certificate/private key in the
+system or user keychain, or the path to a PKCS#12-encoded certificate and
+private key. If you want to use a file from the current directory, please
+precede it with "./" prefix, in order to avoid confusion with a nickname.
+
+(Schannel only) Client certificates must be specified by a path
+expression to a certificate store. (Loading PFX is not supported; you can
+import it to a store first). You can use
+"\\\\" to refer to a certificate
+in the system certificates store, for example,
+"CurrentUser\\MY\\934a7ac6f8a5d579285a74fa61e19f23ddfe8d7a". Thumbprint is
+usually a SHA-1 hex string which you can see in certificate details. Following
+store locations are supported: CurrentUser, LocalMachine, CurrentService,
+Services, CurrentUserGroupPolicy, LocalMachineGroupPolicy,
+LocalMachineEnterprise.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --cert certfile --key keyfile https://example.com
+.fi
+
+See also \fI--cert-type\fP, \fI--key\fP and \fI--key-type\fP.
+.IP "\-\-ciphers "
+(TLS) Specifies which ciphers to use in the connection. The list of ciphers must
+specify valid ciphers. Read up on SSL cipher list details on this URL:
+
+.nf
+ https://curl.se/docs/ssl-ciphers.html
+.fi
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --ciphers ECDHE-ECDSA-AES256-CCM8 https://example.com
+.fi
+
+See also \fI--tlsv1.3\fP.
+.IP "\-\-compressed-ssh"
+(SCP SFTP) Enables built-in SSH compression.
+This is a request, not an order; the server may or may not do it.
+
+Example:
+.nf
+ curl --compressed-ssh sftp://example.com/
+.fi
+
+See also \fI--compressed\fP. Added in 7.56.0.
+.IP "\-\-compressed"
+(HTTP) Request a compressed response using one of the algorithms curl supports, and
+automatically decompress the content. Headers are not modified.
+
+If this option is used and the server sends an unsupported encoding, curl will
+report an error. This is a request, not an order; the server may or may not
+deliver data compressed.
+
+Example:
+.nf
+ curl --compressed https://example.com
+.fi
+
+See also \fI--compressed-ssh\fP.
+.IP "\-K, \-\-config "
+Specify a text file to read curl arguments from. The command line arguments
+found in the text file will be used as if they were provided on the command
+line.
+
+Options and their parameters must be specified on the same line in the file,
+separated by whitespace, colon, or the equals sign. Long option names can
+optionally be given in the config file without the initial double dashes and
+if so, the colon or equals characters can be used as separators. If the option
+is specified with one or two dashes, there can be no colon or equals character
+between the option and its parameter.
+
+If the parameter contains whitespace (or starts with : or =), the parameter
+must be enclosed within quotes. Within double quotes, the following escape
+sequences are available: \\\\, \\", \\t, \\n, \\r and \\v. A backslash
+preceding any other letter is ignored.
+
+If the first column of a config line is a \(aq#' character, the rest of the line
+will be treated as a comment.
+
+Only write one option per physical line in the config file.
+
+Specify the filename to \-\-config as \(aq-' to make curl read the file from stdin.
+
+Note that to be able to specify a URL in the config file, you need to specify
+it using the \-\-url option, and not by simply writing the URL on its own
+line. So, it could look similar to this:
+
+url = "https://curl.se/docs/"
+
+.nf
+ # \-\-\- Example file \-\-\-
+ # this is a comment
+ url = "example.com"
+ output = "curlhere.html"
+ user-agent = "superagent/1.0"
+.fi
+
+.nf
+ # and fetch another URL too
+ url = "example.com/docs/manpage.html"
+ \-O
+ referer = "http://nowhereatall.example.com/"
+ # \-\-\- End of example file \-\-\-
+.fi
+
+When curl is invoked, it (unless \-\-disable is used) checks for a default
+config file and uses it if found, even when \-\-config is used. The default
+config file is checked for in the following places in this order:
+
+1) "$CURL_HOME/.curlrc"
+
+2) "$XDG_CONFIG_HOME/.curlrc" (Added in 7.73.0)
+
+3) "$HOME/.curlrc"
+
+4) Windows: "%USERPROFILE%\\.curlrc"
+
+5) Windows: "%APPDATA%\\.curlrc"
+
+6) Windows: "%USERPROFILE%\\Application Data\\.curlrc"
+
+7) Non-Windows: use getpwuid to find the home directory
+
+8) On Windows, if it finds no .curlrc file in the sequence described above, it
+checks for one in the same dir the curl executable is placed.
+
+On Windows two filenames are checked per location: .curlrc and _curlrc,
+preferring the former. Older versions on Windows checked for _curlrc only.
+
+This option can be used multiple times to load multiple config files.
+
+Example:
+.nf
+ curl --config file.txt https://example.com
+.fi
+
+See also \fI-q, --disable\fP.
+.IP "\-\-connect-timeout "
+Maximum time in seconds that you allow curl\(aqs connection to take.  This only
+limits the connection phase, so if curl connects within the given period it
+will continue \- if not it will exit.  Since version 7.32.0, this option
+accepts decimal values.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --connect-timeout 20 https://example.com
+ curl --connect-timeout 3.14 https://example.com
+.fi
+
+See also \fI-m, --max-time\fP.
+.IP "\-\-connect-to "
+
+For a request to the given HOST1:PORT1 pair, connect to HOST2:PORT2 instead.
+This option is suitable to direct requests at a specific server, e.g. at a
+specific cluster node in a cluster of servers. This option is only used to
+establish the network connection. It does NOT affect the hostname/port that is
+used for TLS/SSL (e.g. SNI, certificate verification) or for the application
+protocols. "HOST1" and "PORT1" may be the empty string, meaning "any
+host/port". "HOST2" and "PORT2" may also be the empty string, meaning "use the
+request\(aqs original host/port".
+
+A "host" specified to this option is compared as a string, so it needs to
+match the name used in request URL. It can be either numerical such as
+"127.0.0.1" or the full host name such as "example.org".
+
+This option can be used many times to add many connect rules.
+
+Example:
+.nf
+ curl --connect-to example.com:443:example.net:8443 https://example.com
+.fi
+
+See also \fI--resolve\fP and \fI-H, --header\fP. Added in 7.49.0.
+.IP "\-C, \-\-continue-at "
+Continue/Resume a previous file transfer at the given offset. The given offset
+is the exact number of bytes that will be skipped, counting from the beginning
+of the source file before it is transferred to the destination. If used with
+uploads, the FTP server command SIZE will not be used by curl.
+
+Use "-C \-" to tell curl to automatically find out where/how to resume the
+transfer. It then uses the given output/input files to figure that out.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl -C - https://example.com
+ curl -C 400 https://example.com
+.fi
+
+See also \fI-r, --range\fP.
+.IP "\-c, \-\-cookie-jar "
+(HTTP) Specify to which file you want curl to write all cookies after a completed
+operation. Curl writes all cookies from its in-memory cookie storage to the
+given file at the end of operations. If no cookies are known, no data will be
+written. The file will be written using the Netscape cookie file format. If
+you set the file name to a single dash, "-", the cookies will be written to
+stdout.
+
+This command line option will activate the cookie engine that makes curl
+record and use cookies. Another way to activate it is to use the \-\-cookie
+option.
+
+If the cookie jar cannot be created or written to, the whole curl operation
+will not fail or even report an error clearly. Using \-\-verbose will get a
+warning displayed, but that is the only visible feedback you get about this
+possibly lethal situation.
+
+If this option is used several times, the last specified file name will be
+used.
+
+Examples:
+.nf
+ curl -c store-here.txt https://example.com
+ curl -c store-here.txt -b read-these https://example.com
+.fi
+
+See also \fI-b, --cookie\fP.
+.IP "\-b, \-\-cookie "
+(HTTP) Pass the data to the HTTP server in the Cookie header. It is supposedly the
+data previously received from the server in a "Set-Cookie:" line. The data
+should be in the format "NAME1=VALUE1; NAME2=VALUE2". This makes curl use the
+cookie header with this content explicitly in all outgoing request(s). If
+multiple requests are done due to authentication, followed redirects or
+similar, they will all get this cookie passed on.
+
+If no \(aq=' symbol is used in the argument, it is instead treated as a filename
+to read previously stored cookie from. This option also activates the cookie
+engine which will make curl record incoming cookies, which may be handy if
+you are using this in combination with the \-\-location option or do multiple URL
+transfers on the same invoke. If the file name is exactly a minus ("-"), curl
+will instead read the contents from stdin.
+
+The file format of the file to read cookies from should be plain HTTP headers
+(Set-Cookie style) or the Netscape/Mozilla cookie file format.
+
+The file specified with \-\-cookie is only used as input. No cookies will be
+written to the file. To store cookies, use the \-\-cookie-jar option.
+
+If you use the Set-Cookie file format and do not specify a domain then the
+cookie is not sent since the domain will never match. To address this, set a
+domain in Set-Cookie line (doing that will include sub-domains) or preferably:
+use the Netscape format.
+
+This option can be used multiple times.
+
+Users often want to both read cookies from a file and write updated cookies
+back to a file, so using both \-\-cookie and \-\-cookie-jar in the same command
+line is common.
+
+Examples:
+.nf
+ curl -b cookiefile https://example.com
+ curl -b cookiefile -c cookiefile https://example.com
+.fi
+
+See also \fI-c, --cookie-jar\fP and \fI-j, --junk-session-cookies\fP.
+.IP "\-\-create-dirs"
+When used in conjunction with the \-\-output option, curl will create the
+necessary local directory hierarchy as needed. This option creates the
+directories mentioned with the \-\-output option, nothing else. If the \-\-output
+file name uses no directory, or if the directories it mentions already exist,
+no directories will be created.
+
+Created dirs are made with mode 0750 on unix style file systems.
+
+To create remote directories when using FTP or SFTP, try \fI\-\-ftp-create-dirs\fP.
+
+Example:
+.nf
+ curl --create-dirs --output local/dir/file https://example.com
+.fi
+
+See also \fI--ftp-create-dirs\fP and \fI--output-dir\fP.
+.IP "\-\-create-file-mode "
+(SFTP SCP FILE) When curl is used to create files remotely using one of the supported
+protocols, this option allows the user to set which \(aqmode' to set on the file
+at creation time, instead of the default 0644.
+
+This option takes an octal number as argument.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --create-file-mode 0777 -T localfile sftp://example.com/new
+.fi
+
+See also \fI--ftp-create-dirs\fP. Added in 7.75.0.
+.IP "\-\-crlf"
+(FTP SMTP) Convert LF to CRLF in upload. Useful for MVS (OS/390).
+
+(SMTP added in 7.40.0)
+
+Example:
+.nf
+ curl --crlf -T file ftp://example.com/
+.fi
+
+See also \fI-B, --use-ascii\fP.
+.IP "\-\-crlfile "
+(TLS) Provide a file using PEM format with a Certificate Revocation List that may
+specify peer certificates that are to be considered revoked.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --crlfile rejects.txt https://example.com
+.fi
+
+See also \fI--cacert\fP and \fI--capath\fP.
+.IP "\-\-curves "
+(TLS) Tells curl to request specific curves to use during SSL session establishment
+according to RFC 8422, 5.1.  Multiple algorithms can be provided by separating
+them with ":" (e.g.  "X25519:P-521").  The parameter is available identically
+in the "openssl s_client/s_server" utilities.
+
+\-\-curves allows a OpenSSL powered curl to make SSL-connections with exactly
+the (EC) curve requested by the client, avoiding nontransparent client/server
+negotiations.
+
+If this option is set, the default curves list built into openssl will be
+ignored.
+
+Example:
+.nf
+ curl --curves X25519 https://example.com
+.fi
+
+See also \fI--ciphers\fP. Added in 7.73.0.
+.IP "\-\-data-ascii "
+(HTTP) This is just an alias for \fI\-d, \-\-data\fP.
+
+Example:
+.nf
+ curl --data-ascii @file https://example.com
+.fi
+
+See also \fI--data-binary\fP, \fI--data-raw\fP and \fI--data-urlencode\fP.
+.IP "\-\-data-binary "
+(HTTP) This posts data exactly as specified with no extra processing whatsoever.
+
+If you start the data with the letter @, the rest should be a filename. Data
+is posted in a similar manner as \-\-data does, except that newlines and
+carriage returns are preserved and conversions are never done.
+
+Like \-\-data the default content-type sent to the server is
+application/x-www-form-urlencoded. If you want the data to be treated as
+arbitrary binary data by the server then set the content-type to octet-stream:
+\-H "Content-Type: application/octet-stream".
+
+If this option is used several times, the ones following the first will append
+data as described in \fI\-d, \-\-data\fP.
+
+Example:
+.nf
+ curl --data-binary @filename https://example.com
+.fi
+
+See also \fI--data-ascii\fP.
+.IP "\-\-data-raw "
+(HTTP) This posts data similarly to \-\-data but without the special
+interpretation of the @ character.
+
+Examples:
+.nf
+ curl --data-raw "hello" https://example.com
+ curl --data-raw "@at@at@" https://example.com
+.fi
+
+See also \fI-d, --data\fP. Added in 7.43.0.
+.IP "\-\-data-urlencode "
+(HTTP) This posts data, similar to the other \-\-data options with the exception
+that this performs URL-encoding.
+
+To be CGI-compliant, the  part should begin with a \fIname\fP followed
+by a separator and a content specification. The  part can be passed to
+curl using one of the following syntaxes:
+.RS
+.IP "content"
+This will make curl URL-encode the content and pass that on. Just be careful
+so that the content does not contain any = or @ symbols, as that will then make
+the syntax match one of the other cases below!
+.IP "=content"
+This will make curl URL-encode the content and pass that on. The preceding =
+symbol is not included in the data.
+.IP "name=content"
+This will make curl URL-encode the content part and pass that on. Note that
+the name part is expected to be URL-encoded already.
+.IP "@filename"
+This will make curl load data from the given file (including any newlines),
+URL-encode that data and pass it on in the POST.
+.IP "name@filename"
+This will make curl load data from the given file (including any newlines),
+URL-encode that data and pass it on in the POST. The name part gets an equal
+sign appended, resulting in \fIname=urlencoded-file-content\fP. Note that the
+name is expected to be URL-encoded already.
+.RE
+
+Examples:
+.nf
+ curl --data-urlencode name=val https://example.com
+ curl --data-urlencode =encodethis https://example.com
+ curl --data-urlencode name@file https://example.com
+ curl --data-urlencode @fileonly https://example.com
+.fi
+
+See also \fI-d, --data\fP and \fI--data-raw\fP.
+.IP "\-d, \-\-data "
+(HTTP MQTT) Sends the specified data in a POST request to the HTTP server, in the same way
+that a browser does when a user has filled in an HTML form and presses the
+submit button. This will cause curl to pass the data to the server using the
+content-type application/x-www-form-urlencoded. Compare to \fI\-F, \-\-form\fP.
+
+\-\-data-raw is almost the same but does not have a special interpretation of
+the @ character. To post data purely binary, you should instead use the
+\-\-data-binary option. To URL-encode the value of a form field you may use
+\fI\-\-data-urlencode\fP.
+
+If any of these options is used more than once on the same command line, the
+data pieces specified will be merged with a separating &-symbol. Thus, using
+\&\(aq-d name=daniel \-d skill=lousy' would generate a post chunk that looks like
+\&\(aqname=daniel&skill=lousy'.
+
+If you start the data with the letter @, the rest should be a file name to
+read the data from, or \- if you want curl to read the data from stdin. Posting
+data from a file named \&\(aqfoobar' would thus be done with \fI\-d, \-\-data\fP @foobar. When
+\-\-data is told to read from a file like that, carriage returns and newlines
+will be stripped out. If you do not want the @ character to have a special
+interpretation use \-\-data-raw instead.
+
+Examples:
+.nf
+ curl -d "name=curl" https://example.com
+ curl -d "name=curl" -d "tool=cmdline" https://example.com
+ curl -d @filename https://example.com
+.fi
+
+See also \fI--data-binary\fP, \fI--data-urlencode\fP and \fI--data-raw\fP. This option is mutually exclusive to \fI-F, --form\fP and \fI-I, --head\fP and \fI-T, --upload-file\fP.
+.IP "\-\-delegation "
+(GSS/kerberos) Set LEVEL to tell the server what it is allowed to delegate when it
+comes to user credentials.
+.RS
+.IP "none"
+Do not allow any delegation.
+.IP "policy"
+Delegates if and only if the OK-AS-DELEGATE flag is set in the Kerberos
+service ticket, which is a matter of realm policy.
+.IP "always"
+Unconditionally allow the server to delegate.
+.RE
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --delegation "none" https://example.com
+.fi
+
+See also \fI-k, --insecure\fP and \fI--ssl\fP.
+.IP "\-\-digest"
+(HTTP) Enables HTTP Digest authentication. This is an authentication scheme that
+prevents the password from being sent over the wire in clear text. Use this in
+combination with the normal \-\-user option to set user name and password.
+
+If this option is used several times, only the first one is used.
+
+Example:
+.nf
+ curl -u name:password --digest https://example.com
+.fi
+
+See also \fI-u, --user\fP, \fI--proxy-digest\fP and \fI--anyauth\fP. This option is mutually exclusive to \fI--basic\fP and \fI--ntlm\fP and \fI--negotiate\fP.
+.IP "\-\-disable-eprt"
+(FTP) Tell curl to disable the use of the EPRT and LPRT commands when doing active
+FTP transfers. Curl will normally always first attempt to use EPRT, then LPRT
+before using PORT, but with this option, it will use PORT right away. EPRT and
+LPRT are extensions to the original FTP protocol, and may not work on all
+servers, but they enable more functionality in a better way than the
+traditional PORT command.
+
+\-\-eprt can be used to explicitly enable EPRT again and \-\-no-eprt is an alias
+for \fI\-\-disable-eprt\fP.
+
+If the server is accessed using IPv6, this option will have no effect as EPRT
+is necessary then.
+
+Disabling EPRT only changes the active behavior. If you want to switch to
+passive mode you need to not use \-\-ftp-port or force it with \fI\-\-ftp-pasv\fP.
+
+Example:
+.nf
+ curl --disable-eprt ftp://example.com/
+.fi
+
+See also \fI--disable-epsv\fP and \fI-P, --ftp-port\fP.
+.IP "\-\-disable-epsv"
+(FTP) Tell curl to disable the use of the EPSV command when doing passive FTP
+transfers. Curl will normally always first attempt to use EPSV before
+PASV, but with this option, it will not try using EPSV.
+
+\-\-epsv can be used to explicitly enable EPSV again and \-\-no-epsv is an alias
+for \fI\-\-disable-epsv\fP.
+
+If the server is an IPv6 host, this option will have no effect as EPSV is
+necessary then.
+
+Disabling EPSV only changes the passive behavior. If you want to switch to
+active mode you need to use \fI\-P, \-\-ftp-port\fP.
+
+Example:
+.nf
+ curl --disable-epsv ftp://example.com/
+.fi
+
+See also \fI--disable-eprt\fP and \fI-P, --ftp-port\fP.
+.IP "\-q, \-\-disable"
+If used as the first parameter on the command line, the \fIcurlrc\fP config
+file will not be read and used. See the \-\-config for details on the default
+config file search path.
+
+Example:
+.nf
+ curl -q https://example.com
+.fi
+
+See also \fI-K, --config\fP.
+.IP "\-\-disallow-username-in-url"
+(HTTP) This tells curl to exit if passed a URL containing a username. This is probably
+most useful when the URL is being provided at runtime or similar.
+
+Example:
+.nf
+ curl --disallow-username-in-url https://example.com
+.fi
+
+See also \fI--proto\fP. Added in 7.61.0.
+.IP "\-\-dns-interface "
+(DNS) Tell curl to send outgoing DNS requests through . This option is a
+counterpart to \fI\-\-interface\fP (which does not affect DNS). The supplied string
+must be an interface name (not an address).
+
+Example:
+.nf
+ curl --dns-interface eth0 https://example.com
+.fi
+
+See also \fI--dns-ipv4-addr\fP and \fI--dns-ipv6-addr\fP. \fI--dns-interface\fP requires that the underlying libcurl was built to support c-ares. Added in 7.33.0.
+.IP "\-\-dns-ipv4-addr 
"
+(DNS) Tell curl to bind to  when making IPv4 DNS requests, so that
+the DNS requests originate from this address. The argument should be a
+single IPv4 address.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --dns-ipv4-addr 10.1.2.3 https://example.com
+.fi
+
+See also \fI--dns-interface\fP and \fI--dns-ipv6-addr\fP. \fI--dns-ipv4-addr\fP requires that the underlying libcurl was built to support c-ares. Added in 7.33.0.
+.IP "\-\-dns-ipv6-addr 
"
+(DNS) Tell curl to bind to  when making IPv6 DNS requests, so that
+the DNS requests originate from this address. The argument should be a
+single IPv6 address.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --dns-ipv6-addr 2a04:4e42::561 https://example.com
+.fi
+
+See also \fI--dns-interface\fP and \fI--dns-ipv4-addr\fP. \fI--dns-ipv6-addr\fP requires that the underlying libcurl was built to support c-ares. Added in 7.33.0.
+.IP "\-\-dns-servers "
+Set the list of DNS servers to be used instead of the system default.
+The list of IP addresses should be separated with commas. Port numbers
+may also optionally be given as \fI:\fP after each IP
+address.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --dns-servers 192.168.0.1,192.168.0.2 https://example.com
+.fi
+
+See also \fI--dns-interface\fP and \fI--dns-ipv4-addr\fP. \fI--dns-servers\fP requires that the underlying libcurl was built to support c-ares. Added in 7.33.0.
+.IP "\-\-doh-cert-status"
+Same as \-\-cert-status but used for DoH (DNS-over-HTTPS).
+
+Example:
+.nf
+ curl --doh-cert-status --doh-url https://doh.example https://example.com
+.fi
+
+See also \fI--doh-insecure\fP. Added in 7.76.0.
+.IP "\-\-doh-insecure"
+Same as \-\-insecure but used for DoH (DNS-over-HTTPS).
+
+Example:
+.nf
+ curl --doh-insecure --doh-url https://doh.example https://example.com
+.fi
+
+See also \fI--doh-url\fP. Added in 7.76.0.
+.IP "\-\-doh-url "
+Specifies which DNS-over-HTTPS (DoH) server to use to resolve hostnames,
+instead of using the default name resolver mechanism. The URL must be HTTPS.
+
+Some SSL options that you set for your transfer will apply to DoH since the
+name lookups take place over SSL. However, the certificate verification
+settings are not inherited and can be controlled separately via
+\-\-doh-insecure and \fI\-\-doh-cert-status\fP.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --doh-url https://doh.example https://example.com
+.fi
+
+See also \fI--doh-insecure\fP. Added in 7.62.0.
+.IP "\-D, \-\-dump-header "
+(HTTP FTP) Write the received protocol headers to the specified file. If no headers are
+received, the use of this option will create an empty file.
+
+When used in FTP, the FTP server response lines are considered being "headers"
+and thus are saved there.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --dump-header store.txt https://example.com
+.fi
+
+See also \fI-o, --output\fP.
+.IP "\-\-egd-file "
+(TLS) Specify the path name to the Entropy Gathering Daemon socket. The socket is
+used to seed the random engine for SSL connections.
+
+Example:
+.nf
+ curl --egd-file /random/here https://example.com
+.fi
+
+See also \fI--random-file\fP.
+.IP "\-\-engine "
+(TLS) Select the OpenSSL crypto engine to use for cipher operations. Use \-\-engine
+list to print a list of build-time supported engines. Note that not all (and
+possibly none) of the engines may be available at runtime.
+
+Example:
+.nf
+ curl --engine flavor https://example.com
+.fi
+
+See also \fI--ciphers\fP and \fI--curves\fP.
+.IP "\-\-etag-compare "
+(HTTP) This option makes a conditional HTTP request for the specific ETag read
+from the given file by sending a custom If-None-Match header using the
+stored ETag.
+
+For correct results, make sure that the specified file contains only a
+single line with the desired ETag. An empty file is parsed as an empty
+ETag.
+
+Use the option \-\-etag-save to first save the ETag from a response, and
+then use this option to compare against the saved ETag in a subsequent
+request.
+
+Example:
+.nf
+ curl --etag-compare etag.txt https://example.com
+.fi
+
+See also \fI--etag-save\fP and \fI-z, --time-cond\fP. Added in 7.68.0.
+.IP "\-\-etag-save "
+(HTTP) This option saves an HTTP ETag to the specified file. An ETag is a
+caching related header, usually returned in a response.
+
+If no ETag is sent by the server, an empty file is created.
+
+Example:
+.nf
+ curl --etag-save storetag.txt https://example.com
+.fi
+
+See also \fI--etag-compare\fP. Added in 7.68.0.
+.IP "\-\-expect100-timeout "
+(HTTP) Maximum time in seconds that you allow curl to wait for a 100-continue
+response when curl emits an Expects: 100-continue header in its request. By
+default curl will wait one second. This option accepts decimal values! When
+curl stops waiting, it will continue as if the response has been received.
+
+Example:
+.nf
+ curl --expect100-timeout 2.5 -T file https://example.com
+.fi
+
+See also \fI--connect-timeout\fP. Added in 7.47.0.
+.IP "\-\-fail-early"
+Fail and exit on the first detected transfer error.
+
+When curl is used to do multiple transfers on the command line, it will
+attempt to operate on each given URL, one by one. By default, it will ignore
+errors if there are more URLs given and the last URL\(aqs success will determine
+the error code curl returns. So early failures will be "hidden" by subsequent
+successful transfers.
+
+Using this option, curl will instead return an error on the first transfer
+that fails, independent of the amount of URLs that are given on the command
+line. This way, no transfer failures go undetected by scripts and similar.
+
+This option is global and does not need to be specified for each use of \fI\-:, \-\-next\fP.
+
+This option does not imply \fI\-f, \-\-fail\fP, which causes transfers to fail due to the
+server\(aqs HTTP status code. You can combine the two options, however note \-\-fail
+is not global and is therefore contained by \fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl --fail-early https://example.com https://two.example
+.fi
+
+See also \fI-f, --fail\fP and \fI--fail-with-body\fP. Added in 7.52.0.
+.IP "\-\-fail-with-body"
+(HTTP) Return an error on server errors where the HTTP response code is 400 or
+greater). In normal cases when an HTTP server fails to deliver a document, it
+returns an HTML document stating so (which often also describes why and
+more). This flag will still allow curl to output and save that content but
+also to return error 22.
+
+This is an alternative option to \-\-fail which makes curl fail for the same
+circumstances but without saving the content.
+
+Example:
+.nf
+ curl --fail-with-body https://example.com
+.fi
+
+See also \fI-f, --fail\fP. Added in 7.76.0.
+.IP "\-f, \-\-fail"
+(HTTP) Fail fast with no output at all on server errors. This is useful to enable
+scripts and users to better deal with failed attempts. In normal cases when an
+HTTP server fails to deliver a document, it returns an HTML document stating
+so (which often also describes why and more). This flag will prevent curl from
+outputting that and return error 22.
+
+This method is not fail-safe and there are occasions where non-successful
+response codes will slip through, especially when authentication is involved
+(response codes 401 and 407).
+
+Example:
+.nf
+ curl --fail https://example.com
+.fi
+
+See also \fI--fail-with-body\fP.
+.IP "\-\-false-start"
+(TLS) Tells curl to use false start during the TLS handshake. False start is a mode
+where a TLS client will start sending application data before verifying the
+server\(aqs Finished message, thus saving a round trip when performing a full
+handshake.
+
+This is currently only implemented in the NSS and Secure Transport (on iOS 7.0
+or later, or OS X 10.9 or later) backends.
+
+Example:
+.nf
+ curl --false-start https://example.com
+.fi
+
+See also \fI--tcp-fastopen\fP. Added in 7.42.0.
+.IP "\-\-form-escape"
+(HTTP) Tells curl to pass on names of multipart form fields and files using
+backslash-escaping instead of percent-encoding.
+
+Example:
+.nf
+ curl --form-escape --form 'field\\name=curl' 'file=@load"this' https://example.com
+.fi
+
+See also \fI-F, --form\fP. Added in 7.81.0.
+.IP "\-\-form-string "
+(HTTP SMTP IMAP) Similar to \-\-form except that the value string for the named parameter is used
+literally. Leading \&\(aq@' and \&'<' characters, and the \&';type=' string in
+the value have no special meaning. Use this in preference to \-\-form if
+there\(aqs any possibility that the string value may accidentally trigger the
+\&\(aq@' or \&'<' features of \fI\-F, \-\-form\fP.
+
+Example:
+.nf
+ curl --form-string "data" https://example.com
+.fi
+
+See also \fI-F, --form\fP.
+.IP "\-F, \-\-form "
+(HTTP SMTP IMAP) For HTTP protocol family, this lets curl emulate a filled-in form in which a
+user has pressed the submit button. This causes curl to POST data using the
+Content-Type multipart/form-data according to RFC 2388.
+
+For SMTP and IMAP protocols, this is the means to compose a multipart mail
+message to transmit.
+
+This enables uploading of binary files etc. To force the \(aqcontent' part to be
+a file, prefix the file name with an @ sign. To just get the content part from
+a file, prefix the file name with the symbol <. The difference between @ and <
+is then that @ makes a file get attached in the post as a file upload, while
+the < makes a text field and just get the contents for that text field from a
+file.
+
+Tell curl to read content from stdin instead of a file by using \- as
+filename. This goes for both @ and < constructs. When stdin is used, the
+contents is buffered in memory first by curl to determine its size and allow a
+possible resend. Defining a part\(aqs data from a named non-regular file (such
+as a named pipe or similar) is unfortunately not subject to buffering and will
+be effectively read at transmission time; since the full size is unknown
+before the transfer starts, such data is sent as chunks by HTTP and rejected
+by IMAP.
+
+Example: send an image to an HTTP server, where \&\(aqprofile' is the name of the
+form-field to which the file portrait.jpg will be the input:
+
+.nf
+ curl \-F profile=@portrait.jpg https://example.com/upload.cgi
+.fi
+
+Example: send your name and shoe size in two text fields to the server:
+
+.nf
+ curl \-F name=John \-F shoesize=11 https://example.com/
+.fi
+
+Example: send your essay in a text field to the server. Send it as a plain
+text field, but get the contents for it from a local file:
+
+.nf
+ curl \-F "story=HTML message;type=text/html' \\
+      \-F \(aq=)' \-F '=@textfile.txt' ...  smtp://example.com
+.fi
+
+Data can be encoded for transfer using encoder=. Available encodings are
+\fIbinary\fP and \fI8bit\fP that do nothing else than adding the corresponding
+Content-Transfer-Encoding header, \fI7bit\fP that only rejects 8-bit characters
+with a transfer error, \fIquoted-printable\fP and \fIbase64\fP that encodes data
+according to the corresponding schemes, limiting lines length to 76
+characters.
+
+Example: send multipart mail with a quoted-printable text message and a
+base64 attached file:
+
+.nf
+ curl \-F \(aq=text message;encoder=quoted-printable' \\
+      \-F \(aq=@localfile;encoder=base64' ... smtp://example.com
+.fi
+
+See further examples and details in the MANUAL.
+
+This option can be used multiple times.
+
+Example:
+.nf
+ curl --form "name=curl" --form "file=@loadthis" https://example.com
+.fi
+
+See also \fI-d, --data\fP, \fI--form-string\fP and \fI--form-escape\fP. This option is mutually exclusive to \fI-d, --data\fP and \fI-I, --head\fP and \fI-T, --upload-file\fP.
+.IP "\-\-ftp-account "
+(FTP) When an FTP server asks for "account data" after user name and password has
+been provided, this data is sent off using the ACCT command.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --ftp-account "mr.robot" ftp://example.com/
+.fi
+
+See also \fI-u, --user\fP.
+.IP "\-\-ftp-alternative-to-user "
+(FTP) If authenticating with the USER and PASS commands fails, send this command.
+When connecting to Tumbleweed\(aqs Secure Transport server over FTPS using a
+client certificate, using "SITE AUTH" will tell the server to retrieve the
+username from the certificate.
+
+Example:
+.nf
+ curl --ftp-alternative-to-user "U53r" ftp://example.com
+.fi
+
+See also \fI--ftp-account\fP and \fI-u, --user\fP.
+.IP "\-\-ftp-create-dirs"
+(FTP SFTP) When an FTP or SFTP URL/operation uses a path that does not currently exist on
+the server, the standard behavior of curl is to fail. Using this option, curl
+will instead attempt to create missing directories.
+
+Example:
+.nf
+ curl --ftp-create-dirs -T file ftp://example.com/remote/path/file
+.fi
+
+See also \fI--create-dirs\fP.
+.IP "\-\-ftp-method "
+(FTP) Control what method curl should use to reach a file on an FTP(S)
+server. The method argument should be one of the following alternatives:
+.RS
+.IP multicwd
+curl does a single CWD operation for each path part in the given URL. For deep
+hierarchies this means many commands. This is how RFC 1738 says it should
+be done. This is the default but the slowest behavior.
+.IP nocwd
+curl does no CWD at all. curl will do SIZE, RETR, STOR etc and give a full
+path to the server for all these commands. This is the fastest behavior.
+.IP singlecwd
+curl does one CWD with the full target directory and then operates on the file
+\&"normally" (like in the multicwd case). This is somewhat more standards
+compliant than \(aqnocwd' but without the full penalty of 'multicwd'.
+.RE
+
+Examples:
+.nf
+ curl --ftp-method multicwd ftp://example.com/dir1/dir2/file
+ curl --ftp-method nocwd ftp://example.com/dir1/dir2/file
+ curl --ftp-method singlecwd ftp://example.com/dir1/dir2/file
+.fi
+
+See also \fI-l, --list-only\fP.
+.IP "\-\-ftp-pasv"
+(FTP) Use passive mode for the data connection. Passive is the internal default
+behavior, but using this option can be used to override a previous \-\-ftp-port
+option.
+
+If this option is used several times, only the first one is used. Undoing an
+enforced passive really is not doable but you must then instead enforce the
+correct \-\-ftp-port again.
+
+Passive mode means that curl will try the EPSV command first and then PASV,
+unless \-\-disable-epsv is used.
+
+Example:
+.nf
+ curl --ftp-pasv ftp://example.com/
+.fi
+
+See also \fI--disable-epsv\fP.
+.IP "\-P, \-\-ftp-port 
"
+(FTP) Reverses the default initiator/listener roles when connecting with FTP. This
+option makes curl use active mode. curl then tells the server to connect back
+to the client\(aqs specified address and port, while passive mode asks the server
+to setup an IP address and port for it to connect to. 
 should be one
+of:
+.RS
+.IP interface
+e.g. "eth0" to specify which interface\(aqs IP address you want to use (Unix only)
+.IP "IP address"
+e.g. "192.168.10.1" to specify the exact IP address
+.IP "host name"
+e.g. "my.host.domain" to specify the machine
+.IP "-"
+make curl pick the same IP address that is already used for the control
+connection
+.RE
+
+If this option is used several times, the last one will be used. Disable the
+use of PORT with \fI\-\-ftp-pasv\fP. Disable the attempt to use the EPRT command
+instead of PORT by using \fI\-\-disable-eprt\fP. EPRT is really PORT++.
+
+You can also append \&":[start]-[end]\&" to the right of the address, to tell
+curl what TCP port range to use. That means you specify a port range, from a
+lower to a higher number. A single number works as well, but do note that it
+increases the risk of failure since the port may not be available.
+
+
+Examples:
+.nf
+ curl -P - ftp:/example.com
+ curl -P eth0 ftp:/example.com
+ curl -P 192.168.0.2 ftp:/example.com
+.fi
+
+See also \fI--ftp-pasv\fP and \fI--disable-eprt\fP.
+.IP "\-\-ftp-pret"
+(FTP) Tell curl to send a PRET command before PASV (and EPSV). Certain FTP servers,
+mainly drftpd, require this non-standard command for directory listings as
+well as up and downloads in PASV mode.
+
+Example:
+.nf
+ curl --ftp-pret ftp://example.com/
+.fi
+
+See also \fI-P, --ftp-port\fP and \fI--ftp-pasv\fP.
+.IP "\-\-ftp-skip-pasv-ip"
+(FTP) Tell curl to not use the IP address the server suggests in its response
+to curl\(aqs PASV command when curl connects the data connection. Instead curl
+will re-use the same IP address it already uses for the control
+connection.
+
+Since curl 7.74.0 this option is enabled by default.
+
+This option has no effect if PORT, EPRT or EPSV is used instead of PASV.
+
+Example:
+.nf
+ curl --ftp-skip-pasv-ip ftp://example.com/
+.fi
+
+See also \fI--ftp-pasv\fP.
+.IP "\-\-ftp-ssl-ccc-mode "
+(FTP) Sets the CCC mode. The passive mode will not initiate the shutdown, but
+instead wait for the server to do it, and will not reply to the shutdown from
+the server. The active mode initiates the shutdown and waits for a reply from
+the server.
+
+Example:
+.nf
+ curl --ftp-ssl-ccc-mode active --ftp-ssl-ccc ftps://example.com/
+.fi
+
+See also \fI--ftp-ssl-ccc\fP.
+.IP "\-\-ftp-ssl-ccc"
+(FTP) Use CCC (Clear Command Channel) Shuts down the SSL/TLS layer after
+authenticating. The rest of the control channel communication will be
+unencrypted. This allows NAT routers to follow the FTP transaction. The
+default mode is passive.
+
+Example:
+.nf
+ curl --ftp-ssl-ccc ftps://example.com/
+.fi
+
+See also \fI--ssl\fP and \fI--ftp-ssl-ccc-mode\fP.
+.IP "\-\-ftp-ssl-control"
+(FTP) Require SSL/TLS for the FTP login, clear for transfer.  Allows secure
+authentication, but non-encrypted data transfers for efficiency.  Fails the
+transfer if the server does not support SSL/TLS.
+
+Example:
+.nf
+ curl --ftp-ssl-control ftp://example.com
+.fi
+
+See also \fI--ssl\fP.
+.IP "\-G, \-\-get"
+When used, this option will make all data specified with \fI\-d, \-\-data\fP, \-\-data-binary
+or \-\-data-urlencode to be used in an HTTP GET request instead of the POST
+request that otherwise would be used. The data will be appended to the URL
+with a \(aq?' separator.
+
+If used in combination with \fI\-I, \-\-head\fP, the POST data will instead be appended to
+the URL with a HEAD request.
+
+If this option is used several times, only the first one is used. This is
+because undoing a GET does not make sense, but you should then instead enforce
+the alternative method you prefer.
+
+Examples:
+.nf
+ curl --get https://example.com
+ curl --get -d "tool=curl" -d "age=old" https://example.com
+ curl --get -I -d "tool=curl" https://example.com
+.fi
+
+See also \fI-d, --data\fP and \fI-X, --request\fP.
+.IP "\-g, \-\-globoff"
+This option switches off the "URL globbing parser". When you set this option,
+you can specify URLs that contain the letters {}[] without having curl itself
+interpret them. Note that these letters are not normal legal URL contents but
+they should be encoded according to the URI standard.
+
+Example:
+.nf
+ curl -g "https://example.com/{[]}}}}"
+.fi
+
+See also \fI-K, --config\fP and \fI-q, --disable\fP.
+.IP "\-\-happy-eyeballs-timeout-ms "
+Happy Eyeballs is an algorithm that attempts to connect to both IPv4 and IPv6
+addresses for dual-stack hosts, giving IPv6 a head-start of the specified
+number of milliseconds. If the IPv6 address cannot be connected to within that
+time, then a connection attempt is made to the IPv4 address in parallel. The
+first connection to be established is the one that is used.
+
+The range of suggested useful values is limited. Happy Eyeballs RFC 6555 says
+"It is RECOMMENDED that connection attempts be paced 150-250 ms apart to
+balance human factors against network load." libcurl currently defaults to
+200 ms. Firefox and Chrome currently default to 300 ms.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --happy-eyeballs-timeout-ms 500 https://example.com
+.fi
+
+See also \fI-m, --max-time\fP and \fI--connect-timeout\fP. Added in 7.59.0.
+.IP "\-\-haproxy-protocol"
+(HTTP) Send a HAProxy PROXY protocol v1 header at the beginning of the
+connection. This is used by some load balancers and reverse proxies to
+indicate the client\(aqs true IP address and port.
+
+This option is primarily useful when sending test requests to a service that
+expects this header.
+
+Example:
+.nf
+ curl --haproxy-protocol https://example.com
+.fi
+
+See also \fI-x, --proxy\fP. Added in 7.60.0.
+.IP "\-I, \-\-head"
+(HTTP FTP FILE) Fetch the headers only! HTTP-servers feature the command HEAD which this uses
+to get nothing but the header of a document. When used on an FTP or FILE file,
+curl displays the file size and last modification time only.
+
+Example:
+.nf
+ curl -I https://example.com
+.fi
+
+See also \fI-G, --get\fP, \fI-v, --verbose\fP and \fI--trace-ascii\fP.
+.IP "\-H, \-\-header 
"
+(HTTP) Extra header to include in the request when sending HTTP to a server. You may
+specify any number of extra headers. Note that if you should add a custom
+header that has the same name as one of the internal ones curl would use, your
+externally set header will be used instead of the internal one. This allows
+you to make even trickier stuff than curl would normally do. You should not
+replace internally set headers without knowing perfectly well what you are
+doing. Remove an internal header by giving a replacement without content on
+the right side of the colon, as in: \-H \&"Host:". If you send the custom
+header with no-value then its header must be terminated with a semicolon, such
+as \-H \&"X-Custom-Header;" to send "X-Custom-Header:".
+
+curl will make sure that each header you add/replace is sent with the proper
+end-of-line marker, you should thus \fBnot\fP add that as a part of the header
+content: do not add newlines or carriage returns, they will only mess things
+up for you.
+
+This option can take an argument in @filename style, which then adds a header
+for each line in the input file. Using @- will make curl read the header file
+from stdin. Added in 7.55.0.
+
+You need \-\-proxy-header to send custom headers intended for an HTTP
+proxy. Added in 7.37.0.
+
+Passing on a "Transfer-Encoding: chunked" header when doing an HTTP request
+with a request body, will make curl send the data using chunked encoding.
+
+\fBWARNING\fP: headers set with this option will be set in all requests \- even
+after redirects are followed, like when told with \fI\-L, \-\-location\fP. This can lead to
+the header being sent to other hosts than the original host, so sensitive
+headers should be used with caution combined with following redirects.
+
+This option can be used multiple times to add/replace/remove multiple headers.
+
+Examples:
+.nf
+ curl -H "X-First-Name: Joe" https://example.com
+ curl -H "User-Agent: yes-please/2000" https://example.com
+ curl -H "Host:" https://example.com
+.fi
+
+See also \fI-A, --user-agent\fP and \fI-e, --referer\fP.
+.IP "\-h, \-\-help "
+Usage help. This lists all commands of the .
+If no arg was provided, curl will display the most important
+command line arguments.
+If the argument "all" was provided, curl will display all options available.
+If the argument "category" was provided, curl will display all categories and
+their meanings.
+
+Example:
+.nf
+ curl --help all
+.fi
+
+See also \fI-v, --verbose\fP.
+.IP "\-\-hostpubmd5 "
+(SFTP SCP) Pass a string containing 32 hexadecimal digits. The string should
+be the 128 bit MD5 checksum of the remote host\(aqs public key, curl will refuse
+the connection with the host unless the md5sums match.
+
+Example:
+.nf
+ curl --hostpubmd5 e5c1c49020640a5ab0f2034854c321a8 sftp://example.com/
+.fi
+
+See also \fI--hostpubsha256\fP.
+.IP "\-\-hostpubsha256 "
+(SFTP SCP) Pass a string containing a Base64-encoded SHA256 hash of the remote
+host\(aqs public key. Curl will refuse the connection with the host
+unless the hashes match.
+
+Example:
+.nf
+ curl --hostpubsha256 NDVkMTQxMGQ1ODdmMjQ3MjczYjAyOTY5MmRkMjVmNDQ= sftp://example.com/
+.fi
+
+See also \fI--hostpubmd5\fP. Added in 7.80.0.
+.IP "\-\-hsts "
+(HTTPS) This option enables HSTS for the transfer. If the file name points to an
+existing HSTS cache file, that will be used. After a completed transfer, the
+cache will be saved to the file name again if it has been modified.
+
+Specify a "" file name (zero length) to avoid loading/saving and make curl
+just handle HSTS in memory.
+
+If this option is used several times, curl will load contents from all the
+files but the last one will be used for saving.
+
+Example:
+.nf
+ curl --hsts cache.txt https://example.com
+.fi
+
+See also \fI--proto\fP. Added in 7.74.0.
+.IP "\-\-http0.9"
+(HTTP) Tells curl to be fine with HTTP version 0.9 response.
+
+HTTP/0.9 is a completely headerless response and therefore you can also
+connect with this to non-HTTP servers and still get a response since curl will
+simply transparently downgrade \- if allowed.
+
+Since curl 7.66.0, HTTP/0.9 is disabled by default.
+
+Example:
+.nf
+ curl --http0.9 https://example.com
+.fi
+
+See also \fI--http1.1\fP, \fI--http2\fP and \fI--http3\fP. Added in 7.64.0.
+.IP "\-0, \-\-http1.0"
+(HTTP) Tells curl to use HTTP version 1.0 instead of using its internally preferred
+HTTP version.
+
+Example:
+.nf
+ curl --http1.0 https://example.com
+.fi
+
+See also \fI--http0.9\fP and \fI--http1.1\fP. This option is mutually exclusive to \fI--http1.1\fP and \fI--http2\fP and \fI--http2-prior-knowledge\fP and \fI--http3\fP.
+.IP "\-\-http1.1"
+(HTTP) Tells curl to use HTTP version 1.1.
+
+Example:
+.nf
+ curl --http1.1 https://example.com
+.fi
+
+See also \fI-0, --http1.0\fP and \fI--http0.9\fP. This option is mutually exclusive to \fI-0, --http1.0\fP and \fI--http2\fP and \fI--http2-prior-knowledge\fP and \fI--http3\fP. Added in 7.33.0.
+.IP "\-\-http2-prior-knowledge"
+(HTTP) Tells curl to issue its non-TLS HTTP requests using HTTP/2 without HTTP/1.1
+Upgrade. It requires prior knowledge that the server supports HTTP/2 straight
+away. HTTPS requests will still do HTTP/2 the standard way with negotiated
+protocol version in the TLS handshake.
+
+Example:
+.nf
+ curl --http2-prior-knowledge https://example.com
+.fi
+
+See also \fI--http2\fP and \fI--http3\fP. \fI--http2-prior-knowledge\fP requires that the underlying libcurl was built to support HTTP/2. This option is mutually exclusive to \fI--http1.1\fP and \fI-0, --http1.0\fP and \fI--http2\fP and \fI--http3\fP. Added in 7.49.0.
+.IP "\-\-http2"
+(HTTP) Tells curl to use HTTP version 2.
+
+For HTTPS, this means curl will attempt to negotiate HTTP/2 in the TLS
+handshake. curl does this by default.
+
+For HTTP, this means curl will attempt to upgrade the request to HTTP/2 using
+the Upgrade: request header.
+
+When curl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or
+higher even though that is required by the specification. A user can add this
+version requirement with \fI\-\-tlsv1.2\fP.
+
+Example:
+.nf
+ curl --http2 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http3\fP. \fI--http2\fP requires that the underlying libcurl was built to support HTTP/2. This option is mutually exclusive to \fI--http1.1\fP and \fI-0, --http1.0\fP and \fI--http2-prior-knowledge\fP and \fI--http3\fP. Added in 7.33.0.
+.IP "\-\-http3"
+(HTTP) \fBWARNING\fP: this option is experimental. Do not use in production.
+
+Tells curl to use HTTP version 3 directly to the host and port number used in
+the URL. A normal HTTP/3 transaction will be done to a host and then get
+redirected via Alt-Svc, but this option allows a user to circumvent that when
+you know that the target speaks HTTP/3 on the given host and port.
+
+This option will make curl fail if a QUIC connection cannot be established, it
+cannot fall back to a lower HTTP version on its own.
+
+Example:
+.nf
+ curl --http3 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http2\fP. \fI--http3\fP requires that the underlying libcurl was built to support HTTP/3. This option is mutually exclusive to \fI--http1.1\fP and \fI-0, --http1.0\fP and \fI--http2\fP and \fI--http2-prior-knowledge\fP. Added in 7.66.0.
+.IP "\-\-ignore-content-length"
+(FTP HTTP) For HTTP, Ignore the Content-Length header. This is particularly useful for
+servers running Apache 1.x, which will report incorrect Content-Length for
+files larger than 2 gigabytes.
+
+For FTP (since 7.46.0), skip the RETR command to figure out the size before
+downloading a file.
+
+This option does not work for HTTP if libcurl was built to use hyper.
+
+Example:
+.nf
+ curl --ignore-content-length https://example.com
+.fi
+
+See also \fI--ftp-skip-pasv-ip\fP.
+.IP "\-i, \-\-include"
+Include the HTTP response headers in the output. The HTTP response headers can
+include things like server name, cookies, date of the document, HTTP version
+and more...
+
+To view the request headers, consider the \-\-verbose option.
+
+Example:
+.nf
+ curl -i https://example.com
+.fi
+
+See also \fI-v, --verbose\fP.
+.IP "\-k, \-\-insecure"
+(TLS SFTP SCP) By default, every secure connection curl makes is verified to be secure before
+the transfer takes place. This option makes curl skip the verification step
+and proceed without checking.
+
+When this option is not used for protocols using TLS, curl verifies the
+server\(aqs TLS certificate before it continues: that the certificate contains
+the right name which matches the host name used in the URL and that the
+certificate has been signed by a CA certificate present in the cert store.
+See this online resource for further details:
+.nf
+ https://curl.se/docs/sslcerts.html
+.fi
+
+For SFTP and SCP, this option makes curl skip the \fIknown_hosts\fP verification.
+\fIknown_hosts\fP is a file normally stored in the user\(aqs home directory in the
+\&.ssh subdirectory, which contains host names and their public keys.
+
+\fBWARNING\fP: using this option makes the transfer insecure.
+
+Example:
+.nf
+ curl --insecure https://example.com
+.fi
+
+See also \fI--proxy-insecure\fP, \fI--cacert\fP and \fI--capath\fP.
+.IP "\-\-interface "
+Perform an operation using a specified interface. You can enter interface
+name, IP address or host name. An example could look like:
+
+.nf
+ curl \-\-interface eth0:1 https://www.example.com/
+.fi
+
+If this option is used several times, the last one will be used.
+
+On Linux it can be used to specify a VRF, but the binary needs to either
+have CAP_NET_RAW or to be run as root. More information about Linux VRF:
+https://www.kernel.org/doc/Documentation/networking/vrf.txt
+
+Example:
+.nf
+ curl --interface eth0 https://example.com
+.fi
+
+See also \fI--dns-interface\fP.
+.IP "\-4, \-\-ipv4"
+This option tells curl to use IPv4 addresses only, and not for example try
+IPv6.
+
+Example:
+.nf
+ curl --ipv4 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http2\fP. This option is mutually exclusive to \fI-6, --ipv6\fP.
+.IP "\-6, \-\-ipv6"
+This option tells curl to use IPv6 addresses only, and not for example try
+IPv4.
+
+Example:
+.nf
+ curl --ipv6 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http2\fP. This option is mutually exclusive to \fI-4, --ipv4\fP.
+.IP "\-\-json "
+(HTTP) Sends the specified JSON data in a POST request to the HTTP server. \-\-json
+works as a shortcut for passing on these three options:
+
+.nf
+ \-\-data [arg]
+ \-\-header "Content-Type: application/json"
+ \-\-header "Accept: application/json"
+.fi
+
+There is \fI\fPno verification\fI\fP that the passed in data is actual JSON or that
+the syntax is correct.
+
+If you start the data with the letter @, the rest should be a file name to
+read the data from, or a single dash (-) if you want curl to read the data
+from stdin. Posting data from a file named \&\(aqfoobar' would thus be done with
+\fI\-\-json\fP @foobar and to instead read the data from stdin, use \-\-json @-.
+
+If this option is used more than once on the same command line, the additional
+data pieces will be concatenated to the previous before sending.
+
+The headers this option sets can be overridden with \-\-header as usual.
+
+Examples:
+.nf
+ curl --json '{ "drink": "coffe" }' https://example.com
+ curl --json '{ "drink":' --json ' "coffe" }' https://example.com
+ curl --json @prepared https://example.com
+ curl --json @- https://example.com < json.txt
+.fi
+
+See also \fI--data-binary\fP and \fI--data-raw\fP. This option is mutually exclusive to \fI-F, --form\fP and \fI-I, --head\fP and \fI-T, --upload-file\fP. Added in 7.82.0.
+.IP "\-j, \-\-junk-session-cookies"
+(HTTP) When curl is told to read cookies from a given file, this option will make it
+discard all "session cookies". This will basically have the same effect as if
+a new session is started. Typical browsers always discard session cookies when
+they are closed down.
+
+Example:
+.nf
+ curl --junk-session-cookies -b cookies.txt https://example.com
+.fi
+
+See also \fI-b, --cookie\fP and \fI-c, --cookie-jar\fP.
+.IP "\-\-keepalive-time "
+This option sets the time a connection needs to remain idle before sending
+keepalive probes and the time between individual keepalive probes. It is
+currently effective on operating systems offering the TCP_KEEPIDLE and
+TCP_KEEPINTVL socket options (meaning Linux, recent AIX, HP-UX and more).
+Keepalives are used by the TCP stack to detect broken networks on idle
+connections. The number of missed keepalive probes before declaring the
+connection down is OS dependent and is commonly 9 or 10. This option has no
+effect if \-\-no-keepalive is used.
+
+If this option is used several times, the last one will be used. If
+unspecified, the option defaults to 60 seconds.
+
+Example:
+.nf
+ curl --keepalive-time 20 https://example.com
+.fi
+
+See also \fI--no-keepalive\fP and \fI-m, --max-time\fP.
+.IP "\-\-key-type "
+(TLS) Private key file type. Specify which type your \-\-key provided private key
+is. DER, PEM, and ENG are supported. If not specified, PEM is assumed.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --key-type DER --key here https://example.com
+.fi
+
+See also \fI--key\fP.
+.IP "\-\-key "
+(TLS SSH) Private key file name. Allows you to provide your private key in this separate
+file. For SSH, if not specified, curl tries the following candidates in order:
+\&\(aq~/.ssh/id_rsa', '~/.ssh/id_dsa', './id_rsa', './id_dsa'.
+
+If curl is built against OpenSSL library, and the engine pkcs11 is available,
+then a PKCS#11 URI (RFC 7512) can be used to specify a private key located in a
+PKCS#11 device. A string beginning with "pkcs11:" will be interpreted as a
+PKCS#11 URI. If a PKCS#11 URI is provided, then the \-\-engine option will be set
+as "pkcs11" if none was provided and the \-\-key-type option will be set as
+"ENG" if none was provided.
+
+If curl is built against Secure Transport or Schannel then this option is
+ignored for TLS protocols (HTTPS, etc). Those backends expect the private key
+to be already present in the keychain or PKCS#12 file containing the
+certificate.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --cert certificate --key here https://example.com
+.fi
+
+See also \fI--key-type\fP and \fI-E, --cert\fP.
+.IP "\-\-krb "
+(FTP) Enable Kerberos authentication and use. The level must be entered and should
+be one of \(aqclear', 'safe', 'confidential', or 'private'. Should you use a
+level that is not one of these, \(aqprivate' will instead be used.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --krb clear ftp://example.com/
+.fi
+
+See also \fI--delegation\fP and \fI--ssl\fP. \fI--krb\fP requires that the underlying libcurl was built to support Kerberos.
+.IP "\-\-libcurl "
+Append this option to any ordinary curl command line, and you will get
+libcurl-using C source code written to the file that does the equivalent
+of what your command-line operation does!
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+If this option is used several times, the last given file name will be
+used.
+
+Example:
+.nf
+ curl --libcurl client.c https://example.com
+.fi
+
+See also \fI-v, --verbose\fP.
+.IP "\-\-limit-rate "
+Specify the maximum transfer rate you want curl to use \- for both downloads
+and uploads. This feature is useful if you have a limited pipe and you would like
+your transfer not to use your entire bandwidth. To make it slower than it
+otherwise would be.
+
+The given speed is measured in bytes/second, unless a suffix is appended.
+Appending \(aqk' or 'K' will count the number as kilobytes, 'm' or 'M' makes it
+megabytes, while \(aqg' or 'G' makes it gigabytes. The suffixes (k, M, G, T, P)
+are 1024 based. For example 1k is 1024. Examples: 200K, 3m and 1G.
+
+The rate limiting logic works on averaging the transfer speed to no more than
+the set threshold over a period of multiple seconds.
+
+If you also use the \-\-speed-limit option, that option will take precedence and
+might cripple the rate-limiting slightly, to help keeping the speed-limit
+logic working.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --limit-rate 100K https://example.com
+ curl --limit-rate 1000 https://example.com
+ curl --limit-rate 10M https://example.com
+.fi
+
+See also \fI-Y, --speed-limit\fP and \fI-y, --speed-time\fP.
+.IP "\-l, \-\-list-only"
+(FTP POP3) (FTP)
+When listing an FTP directory, this switch forces a name-only view. This is
+especially useful if the user wants to machine-parse the contents of an FTP
+directory since the normal directory view does not use a standard look or
+format. When used like this, the option causes an NLST command to be sent to
+the server instead of LIST.
+
+Note: Some FTP servers list only files in their response to NLST; they do not
+include sub-directories and symbolic links.
+
+(POP3)
+When retrieving a specific email from POP3, this switch forces a LIST command
+to be performed instead of RETR. This is particularly useful if the user wants
+to see if a specific message-id exists on the server and what size it is.
+
+Note: When combined with \fI\-X, \-\-request\fP, this option can be used to send a UIDL
+command instead, so the user may use the email\(aqs unique identifier rather than
+its message-id to make the request.
+
+Example:
+.nf
+ curl --list-only ftp://example.com/dir/
+.fi
+
+See also \fI-Q, --quote\fP and \fI-X, --request\fP.
+.IP "\-\-local-port "
+Set a preferred single number or range (FROM-TO) of local port numbers to use
+for the connection(s).  Note that port numbers by nature are a scarce resource
+that will be busy at times so setting this range to something too narrow might
+cause unnecessary connection setup failures.
+
+Example:
+.nf
+ curl --local-port 1000-3000 https://example.com
+.fi
+
+See also \fI-g, --globoff\fP.
+.IP "\-\-location-trusted"
+(HTTP) Like \fI\-L, \-\-location\fP, but will allow sending the name + password to all hosts that
+the site may redirect to. This may or may not introduce a security breach if
+the site redirects you to a site to which you will send your authentication
+info (which is plaintext in the case of HTTP Basic authentication).
+
+Example:
+.nf
+ curl --location-trusted -u user:password https://example.com
+.fi
+
+See also \fI-u, --user\fP.
+.IP "\-L, \-\-location"
+(HTTP) If the server reports that the requested page has moved to a different
+location (indicated with a Location: header and a 3XX response code), this
+option will make curl redo the request on the new place. If used together with
+\-\-include or \fI\-I, \-\-head\fP, headers from all requested pages will be shown. When
+authentication is used, curl only sends its credentials to the initial
+host. If a redirect takes curl to a different host, it will not be able to
+intercept the user+password. See also \-\-location-trusted on how to change
+this. You can limit the amount of redirects to follow by using the
+\-\-max-redirs option.
+
+When curl follows a redirect and if the request is a POST, it will send the
+following request with a GET if the HTTP response was 301, 302, or 303. If the
+response code was any other 3xx code, curl will re-send the following request
+using the same unmodified method.
+
+You can tell curl to not change POST requests to GET after a 30x response by
+using the dedicated options for that: \fI\-\-post301\fP, \-\-post302 and \fI\-\-post303\fP.
+
+The method set with \-\-request overrides the method curl would otherwise select
+to use.
+
+Example:
+.nf
+ curl -L https://example.com
+.fi
+
+See also \fI--resolve\fP and \fI--alt-svc\fP.
+.IP "\-\-login-options "
+(IMAP LDAP POP3 SMTP) Specify the login options to use during server authentication.
+
+You can use login options to specify protocol specific options that may be
+used during authentication. At present only IMAP, POP3 and SMTP support
+login options. For more information about login options please see RFC
+2384, RFC 5092 and IETF draft draft-earhart-url-smtp-00.txt
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --login-options 'AUTH=*' imap://example.com
+.fi
+
+See also \fI-u, --user\fP. Added in 7.34.0.
+.IP "\-\-mail-auth 
"
+(SMTP) Specify a single address. This will be used to specify the authentication
+address (identity) of a submitted message that is being relayed to another
+server.
+
+Example:
+.nf
+ curl --mail-auth user@example.come -T mail smtp://example.com/
+.fi
+
+See also \fI--mail-rcpt\fP and \fI--mail-from\fP.
+.IP "\-\-mail-from 
"
+(SMTP) Specify a single address that the given mail should get sent from.
+
+Example:
+.nf
+ curl --mail-from user@example.com -T mail smtp://example.com/
+.fi
+
+See also \fI--mail-rcpt\fP and \fI--mail-auth\fP.
+.IP "\-\-mail-rcpt-allowfails"
+(SMTP) When sending data to multiple recipients, by default curl will abort SMTP
+conversation if at least one of the recipients causes RCPT TO command to
+return an error.
+
+The default behavior can be changed by passing \-\-mail-rcpt-allowfails
+command-line option which will make curl ignore errors and proceed with the
+remaining valid recipients.
+
+If all recipients trigger RCPT TO failures and this flag is specified, curl
+will still abort the SMTP conversation and return the error received from to
+the last RCPT TO command.
+
+Example:
+.nf
+ curl --mail-rcpt-allowfails --mail-rcpt dest@example.com smtp://example.com
+.fi
+
+See also \fI--mail-rcpt\fP. Added in 7.69.0.
+.IP "\-\-mail-rcpt 
"
+(SMTP) Specify a single email address, user name or mailing list name. Repeat this
+option several times to send to multiple recipients.
+
+When performing an address verification (VRFY command), the recipient should be
+specified as the user name or user name and domain (as per Section 3.5 of
+RFC5321). (Added in 7.34.0)
+
+When performing a mailing list expand (EXPN command), the recipient should be
+specified using the mailing list name, such as "Friends" or "London-Office".
+(Added in 7.34.0)
+
+Example:
+.nf
+ curl --mail-rcpt user@example.net smtp://example.com
+.fi
+
+See also \fI--mail-rcpt-allowfails\fP.
+.IP "\-M, \-\-manual"
+Manual. Display the huge help text.
+
+Example:
+.nf
+ curl --manual
+.fi
+
+See also \fI-v, --verbose\fP, \fI--libcurl\fP and \fI--trace\fP.
+.IP "\-\-max-filesize "
+(FTP HTTP MQTT) Specify the maximum size (in bytes) of a file to download. If the file
+requested is larger than this value, the transfer will not start and curl will
+return with exit code 63.
+
+A size modifier may be used. For example, Appending \(aqk' or 'K' will count the
+number as kilobytes, \(aqm' or 'M' makes it megabytes, while 'g' or 'G' makes it
+gigabytes. Examples: 200K, 3m and 1G. (Added in 7.58.0)
+
+\fBNOTE\fP: The file size is not always known prior to download, and for such
+files this option has no effect even if the file transfer ends up being larger
+than this given limit.
+Example:
+.nf
+ curl --max-filesize 100K https://example.com
+.fi
+
+See also \fI--limit-rate\fP.
+.IP "\-\-max-redirs "
+(HTTP) Set maximum number of redirections to follow. When \-\-location is used, to
+prevent curl from following too many redirects, by default, the limit is
+set to 50 redirects. Set this option to \-1 to make it unlimited.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --max-redirs 3 --location https://example.com
+.fi
+
+See also \fI-L, --location\fP.
+.IP "\-m, \-\-max-time "
+Maximum time in seconds that you allow the whole operation to take.  This is
+useful for preventing your batch jobs from hanging for hours due to slow
+networks or links going down.  Since 7.32.0, this option accepts decimal
+values, but the actual timeout will decrease in accuracy as the specified
+timeout increases in decimal precision.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --max-time 10 https://example.com
+ curl --max-time 2.92 https://example.com
+.fi
+
+See also \fI--connect-timeout\fP.
+.IP "\-\-metalink"
+This option was previously used to specify a metalink resource. Metalink
+support has been disabled in curl since 7.78.0 for security reasons.
+
+Example:
+.nf
+ curl --metalink file https://example.com
+.fi
+
+See also \fI-Z, --parallel\fP.
+.IP "\-\-negotiate"
+(HTTP) Enables Negotiate (SPNEGO) authentication.
+
+This option requires a library built with GSS-API or SSPI support. Use
+\-\-version to see if your curl supports GSS-API/SSPI or SPNEGO.
+
+When using this option, you must also provide a fake \-\-user option to activate
+the authentication code properly. Sending a \(aq-u :' is enough as the user name
+and password from the \-\-user option are not actually used.
+
+If this option is used several times, only the first one is used.
+
+Example:
+.nf
+ curl --negotiate -u : https://example.com
+.fi
+
+See also \fI--basic\fP, \fI--ntlm\fP, \fI--anyauth\fP and \fI--proxy-negotiate\fP.
+.IP "\-\-netrc-file "
+This option is similar to \fI\-n, \-\-netrc\fP, except that you provide the path (absolute
+or relative) to the netrc file that curl should use. You can only specify one
+netrc file per invocation. If several \-\-netrc-file options are provided,
+the last one will be used.
+
+It will abide by \-\-netrc-optional if specified.
+
+Example:
+.nf
+ curl --netrc-file netrc https://example.com
+.fi
+
+See also \fI-n, --netrc\fP, \fI-u, --user\fP and \fI-K, --config\fP. This option is mutually exclusive to \fI-n, --netrc\fP.
+.IP "\-\-netrc-optional"
+Similar to \fI\-n, \-\-netrc\fP, but this option makes the .netrc usage \fBoptional\fP
+and not mandatory as the \-\-netrc option does.
+
+Example:
+.nf
+ curl --netrc-optional https://example.com
+.fi
+
+See also \fI--netrc-file\fP. This option is mutually exclusive to \fI-n, --netrc\fP.
+.IP "\-n, \-\-netrc"
+Makes curl scan the \fI.netrc\fP (\fI_netrc\fP on Windows) file in the user\(aqs home
+directory for login name and password. This is typically used for FTP on
+Unix. If used with HTTP, curl will enable user authentication. See
+\fInetrc(5)\fP and \fIftp(1)\fP for details on the file format. Curl will not
+complain if that file does not have the right permissions (it should be
+neither world- nor group-readable). The environment variable "HOME" is used
+to find the home directory.
+
+A quick and simple example of how to setup a \fI.netrc\fP to allow curl to FTP to
+the machine host.domain.com with user name \&\(aqmyself' and password \&'secret'
+could look similar to:
+
+.nf
+ machine host.domain.com
+ login myself
+ password secret"
+.fi
+
+Example:
+.nf
+ curl --netrc https://example.com
+.fi
+
+See also \fI--netrc-file\fP, \fI-K, --config\fP and \fI-u, --user\fP.
+.IP "\-:, \-\-next"
+Tells curl to use a separate operation for the following URL and associated
+options. This allows you to send several URL requests, each with their own
+specific options, for example, such as different user names or custom requests
+for each.
+
+\-\-next will reset all local options and only global ones will have their
+values survive over to the operation following the \-\-next instruction. Global
+options include \fI\-v, \-\-verbose\fP, \fI\-\-trace\fP, \-\-trace-ascii and \fI\-\-fail-early\fP.
+
+For example, you can do both a GET and a POST in a single command line:
+
+.nf
+ curl www1.example.com \-\-next \-d postthis www2.example.com
+.fi
+
+Examples:
+.nf
+ curl https://example.com --next -d postthis www2.example.com
+ curl -I https://example.com --next https://example.net/
+.fi
+
+See also \fI-Z, --parallel\fP and \fI-K, --config\fP. Added in 7.36.0.
+.IP "\-\-no-alpn"
+(HTTPS) Disable the ALPN TLS extension. ALPN is enabled by default if libcurl was built
+with an SSL library that supports ALPN. ALPN is used by a libcurl that supports
+HTTP/2 to negotiate HTTP/2 support with the server during https sessions.
+
+Example:
+.nf
+ curl --no-alpn https://example.com
+.fi
+
+See also \fI--no-npn\fP and \fI--http2\fP. \fI--no-alpn\fP requires that the underlying libcurl was built to support TLS. Added in 7.36.0.
+.IP "\-N, \-\-no-buffer"
+Disables the buffering of the output stream. In normal work situations, curl
+will use a standard buffered output stream that will have the effect that it
+will output the data in chunks, not necessarily exactly when the data arrives.
+Using this option will disable that buffering.
+
+Note that this is the negated option name documented. You can thus use
+\-\-buffer to enforce the buffering.
+
+Example:
+.nf
+ curl --no-buffer https://example.com
+.fi
+
+See also \fI-#, --progress-bar\fP.
+.IP "\-\-no-clobber"
+When used in conjunction with the \fI\-o, \-\-output\fP, \fI\-J, \-\-remote-header-name\fP,
+\fI\-O, \-\-remote-name\fP, or \-\-remote-name-all options, curl avoids overwriting files
+that already exist. Instead, a dot and a number gets appended to the name
+of the file that would be created, up to filename.100 after which it will not
+create any file.
+
+Note that this is the negated option name documented.  You can thus use
+\-\-clobber to enforce the clobbering, even if \-\-remote-header-name or \-J is
+specified.
+
+Example:
+.nf
+ curl --no-clobber --output local/dir/file https://example.com
+.fi
+
+See also \fI-o, --output\fP and \fI-O, --remote-name\fP. Added in 7.83.0.
+.IP "\-\-no-keepalive"
+Disables the use of keepalive messages on the TCP connection. curl otherwise
+enables them by default.
+
+Note that this is the negated option name documented. You can thus use
+\-\-keepalive to enforce keepalive.
+
+Example:
+.nf
+ curl --no-keepalive https://example.com
+.fi
+
+See also \fI--keepalive-time\fP.
+.IP "\-\-no-npn"
+(HTTPS) Disable the NPN TLS extension. NPN is enabled by default if libcurl was built
+with an SSL library that supports NPN. NPN is used by a libcurl that supports
+HTTP/2 to negotiate HTTP/2 support with the server during https sessions.
+
+Example:
+.nf
+ curl --no-npn https://example.com
+.fi
+
+See also \fI--no-alpn\fP and \fI--http2\fP. \fI--no-npn\fP requires that the underlying libcurl was built to support TLS. Added in 7.36.0.
+.IP "\-\-no-progress-meter"
+Option to switch off the progress meter output without muting or otherwise
+affecting warning and informational messages like \-\-silent does.
+
+Note that this is the negated option name documented. You can thus use
+\-\-progress-meter to enable the progress meter again.
+
+Example:
+.nf
+ curl --no-progress-meter -o store https://example.com
+.fi
+
+See also \fI-v, --verbose\fP and \fI-s, --silent\fP. Added in 7.67.0.
+.IP "\-\-no-sessionid"
+(TLS) Disable curl\(aqs use of SSL session-ID caching. By default all transfers are
+done using the cache. Note that while nothing should ever get hurt by
+attempting to reuse SSL session-IDs, there seem to be broken SSL
+implementations in the wild that may require you to disable this in order for
+you to succeed.
+
+Note that this is the negated option name documented. You can thus use
+\-\-sessionid to enforce session-ID caching.
+
+Example:
+.nf
+ curl --no-sessionid https://example.com
+.fi
+
+See also \fI-k, --insecure\fP.
+.IP "\-\-noproxy "
+Comma-separated list of hosts for which not to use a proxy, if one is
+specified. The only wildcard is a single * character, which matches all hosts,
+and effectively disables the proxy. Each name in this list is matched as
+either a domain which contains the hostname, or the hostname itself. For
+example, local.com would match local.com, local.com:80, and www.local.com, but
+not www.notlocal.com.
+
+Since 7.53.0, This option overrides the environment variables that disable the
+proxy (\(aqno_proxy' and 'NO_PROXY'). If there's an environment variable
+disabling a proxy, you can set the noproxy list to \&"" to override it.
+
+Example:
+.nf
+ curl --noproxy "www.example" https://example.com
+.fi
+
+See also \fI-x, --proxy\fP.
+.IP "\-\-ntlm-wb"
+(HTTP) Enables NTLM much in the style \-\-ntlm does, but hand over the authentication
+to the separate binary ntlmauth application that is executed when needed.
+
+Example:
+.nf
+ curl --ntlm-wb -u user:password https://example.com
+.fi
+
+See also \fI--ntlm\fP and \fI--proxy-ntlm\fP.
+.IP "\-\-ntlm"
+(HTTP) Enables NTLM authentication. The NTLM authentication method was designed by
+Microsoft and is used by IIS web servers. It is a proprietary protocol,
+reverse-engineered by clever people and implemented in curl based on their
+efforts. This kind of behavior should not be endorsed, you should encourage
+everyone who uses NTLM to switch to a public and documented authentication
+method instead, such as Digest.
+
+If you want to enable NTLM for your proxy authentication, then use
+\fI\-\-proxy-ntlm\fP.
+
+If this option is used several times, only the first one is used.
+
+Example:
+.nf
+ curl --ntlm -u user:password https://example.com
+.fi
+
+See also \fI--proxy-ntlm\fP. \fI--ntlm\fP requires that the underlying libcurl was built to support TLS. This option is mutually exclusive to \fI--basic\fP and \fI--negotiate\fP and \fI--digest\fP and \fI--anyauth\fP.
+.IP "\-\-oauth2-bearer "
+(IMAP LDAP POP3 SMTP HTTP) Specify the Bearer Token for OAUTH 2.0 server authentication. The Bearer Token
+is used in conjunction with the user name which can be specified as part of
+the \-\-url or \-\-user options.
+
+The Bearer Token and user name are formatted according to RFC 6750.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --oauth2-bearer "mF_9.B5f-4.1JqM" https://example.com
+.fi
+
+See also \fI--basic\fP, \fI--ntlm\fP and \fI--digest\fP. Added in 7.33.0.
+.IP "\-\-output-dir "
+
+This option specifies the directory in which files should be stored, when
+\-\-remote-name or \-\-output are used.
+
+The given output directory is used for all URLs and output options on the
+command line, up until the first \fI\-:, \-\-next\fP.
+
+If the specified target directory does not exist, the operation will fail
+unless \-\-create-dirs is also used.
+
+If this option is used multiple times, the last specified directory will be
+used.
+
+Example:
+.nf
+ curl --output-dir "tmp" -O https://example.com
+.fi
+
+See also \fI-O, --remote-name\fP and \fI-J, --remote-header-name\fP. Added in 7.73.0.
+.IP "\-o, \-\-output "
+Write output to  instead of stdout. If you are using {} or [] to fetch
+multiple documents, you should quote the URL and you can use \(aq#' followed by a
+number in the  specifier. That variable will be replaced with the current
+string for the URL being fetched. Like in:
+
+.nf
+ curl "http://{one,two}.example.com" \-o "file_#1.txt"
+.fi
+
+or use several variables like:
+
+.nf
+ curl "http://{site,host}.host[1-5].com" \-o "#1_#2"
+.fi
+
+You may use this option as many times as the number of URLs you have. For
+example, if you specify two URLs on the same command line, you can use it like
+this:
+
+.nf
+  curl \-o aa example.com \-o bb example.net
+.fi
+
+and the order of the \-o options and the URLs does not matter, just that the
+first \-o is for the first URL and so on, so the above command line can also be
+written as
+
+.nf
+  curl example.com example.net \-o aa \-o bb
+.fi
+
+See also the \-\-create-dirs option to create the local directories
+dynamically. Specifying the output as \(aq-' (a single dash) will force the
+output to be done to stdout.
+
+To suppress response bodies, you can redirect output to /dev/null:
+
+.nf
+  curl example.com \-o /dev/null
+.fi
+
+Or for Windows use nul:
+
+.nf
+  curl example.com \-o nul
+.fi
+
+Examples:
+.nf
+ curl -o file https://example.com
+ curl "http://{one,two}.example.com" -o "file_#1.txt"
+ curl "http://{site,host}.host[1-5].com" -o "#1_#2"
+ curl -o file https://example.com -o file2 https://example.net
+.fi
+
+See also \fI-O, --remote-name\fP, \fI--remote-name-all\fP and \fI-J, --remote-header-name\fP.
+.IP "\-\-parallel-immediate"
+When doing parallel transfers, this option will instruct curl that it should
+rather prefer opening up more connections in parallel at once rather than
+waiting to see if new transfers can be added as multiplexed streams on another
+connection.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl --parallel-immediate -Z https://example.com -o file1 https://example.com -o file2
+.fi
+
+See also \fI-Z, --parallel\fP and \fI--parallel-max\fP. Added in 7.68.0.
+.IP "\-\-parallel-max "
+When asked to do parallel transfers, using \fI\-Z, \-\-parallel\fP, this option controls
+the maximum amount of transfers to do simultaneously.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+The default is 50.
+
+Example:
+.nf
+ curl --parallel-max 100 -Z https://example.com ftp://example.com/
+.fi
+
+See also \fI-Z, --parallel\fP. Added in 7.66.0.
+.IP "\-Z, \-\-parallel"
+Makes curl perform its transfers in parallel as compared to the regular serial
+manner.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl --parallel https://example.com -o file1 https://example.com -o file2
+.fi
+
+See also \fI-:, --next\fP and \fI-v, --verbose\fP. Added in 7.66.0.
+.IP "\-\-pass "
+(SSH TLS) Passphrase for the private key.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --pass secret --key file https://example.com
+.fi
+
+See also \fI--key\fP and \fI-u, --user\fP.
+.IP "\-\-path-as-is"
+Tell curl to not handle sequences of /../ or /./ in the given URL
+path. Normally curl will squash or merge them according to standards but with
+this option set you tell it not to do that.
+
+Example:
+.nf
+ curl --path-as-is https://example.com/../../etc/passwd
+.fi
+
+See also \fI--request-target\fP. Added in 7.42.0.
+.IP "\-\-pinnedpubkey "
+(TLS) Tells curl to use the specified public key file (or hashes) to verify the
+peer. This can be a path to a file which contains a single public key in PEM
+or DER format, or any number of base64 encoded sha256 hashes preceded by
+\(aqsha256//' and separated by ';'.
+
+When negotiating a TLS or SSL connection, the server sends a certificate
+indicating its identity. A public key is extracted from this certificate and
+if it does not exactly match the public key provided to this option, curl will
+abort the connection before sending or receiving any data.
+
+PEM/DER support:
+
+7.39.0: OpenSSL, GnuTLS and GSKit
+
+7.43.0: NSS and wolfSSL
+
+7.47.0: mbedtls
+
+sha256 support:
+
+7.44.0: OpenSSL, GnuTLS, NSS and wolfSSL
+
+7.47.0: mbedtls
+
+Other SSL backends not supported.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --pinnedpubkey keyfile https://example.com
+ curl --pinnedpubkey 'sha256//ce118b51897f4452dc' https://example.com
+.fi
+
+See also \fI--hostpubsha256\fP. Added in 7.39.0.
+.IP "\-\-post301"
+(HTTP) Tells curl to respect RFC 7231/6.4.2 and not convert POST requests into GET
+requests when following a 301 redirection. The non-RFC behavior is ubiquitous
+in web browsers, so curl does the conversion by default to maintain
+consistency. However, a server may require a POST to remain a POST after such
+a redirection. This option is meaningful only when using \fI\-L, \-\-location\fP.
+
+Example:
+.nf
+ curl --post301 --location -d "data" https://example.com
+.fi
+
+See also \fI--post302\fP, \fI--post303\fP and \fI-L, --location\fP.
+.IP "\-\-post302"
+(HTTP) Tells curl to respect RFC 7231/6.4.3 and not convert POST requests into GET
+requests when following a 302 redirection. The non-RFC behavior is ubiquitous
+in web browsers, so curl does the conversion by default to maintain
+consistency. However, a server may require a POST to remain a POST after such
+a redirection. This option is meaningful only when using \fI\-L, \-\-location\fP.
+
+Example:
+.nf
+ curl --post302 --location -d "data" https://example.com
+.fi
+
+See also \fI--post301\fP, \fI--post303\fP and \fI-L, --location\fP.
+.IP "\-\-post303"
+(HTTP) Tells curl to violate RFC 7231/6.4.4 and not convert POST requests into GET
+requests when following 303 redirections. A server may require a POST to
+remain a POST after a 303 redirection. This option is meaningful only when
+using \fI\-L, \-\-location\fP.
+
+Example:
+.nf
+ curl --post303 --location -d "data" https://example.com
+.fi
+
+See also \fI--post302\fP, \fI--post301\fP and \fI-L, --location\fP.
+.IP "\-\-preproxy [protocol://]host[:port]"
+Use the specified SOCKS proxy before connecting to an HTTP or HTTPS \fI\-x, \-\-proxy\fP. In
+such a case curl first connects to the SOCKS proxy and then connects (through
+SOCKS) to the HTTP or HTTPS proxy. Hence pre proxy.
+
+The pre proxy string should be specified with a protocol:// prefix to specify
+alternative proxy protocols. Use socks4://, socks4a://, socks5:// or
+socks5h:// to request the specific SOCKS version to be used. No protocol
+specified will make curl default to SOCKS4.
+
+If the port number is not specified in the proxy string, it is assumed to be
+1080.
+
+User and password that might be provided in the proxy string are URL decoded
+by curl. This allows you to pass in special characters such as @ by using %40
+or pass in a colon with %3a.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --preproxy socks5://proxy.example -x http://http.example https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI--socks5\fP. Added in 7.52.0.
+.IP "\-#, \-\-progress-bar"
+Make curl display transfer progress as a simple progress bar instead of the
+standard, more informational, meter.
+
+This progress bar draws a single line of \(aq#' characters across the screen and
+shows a percentage if the transfer size is known. For transfers without a
+known size, there will be space ship (-=o=-) that moves back and forth but
+only while data is being transferred, with a set of flying hash sign symbols on
+top.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl -# -O https://example.com
+.fi
+
+See also \fI--styled-output\fP.
+.IP "\-\-proto-default "
+Tells curl to use \fIprotocol\fP for any URL missing a scheme name.
+
+An unknown or unsupported protocol causes error
+\fICURLE_UNSUPPORTED_PROTOCOL\fP (1).
+
+This option does not change the default proxy protocol (http).
+
+Without this option set, curl guesses protocol based on the host name, see
+\-\-url for details.
+
+Example:
+.nf
+ curl --proto-default https ftp.example.com
+.fi
+
+See also \fI--proto\fP and \fI--proto-redir\fP. Added in 7.45.0.
+.IP "\-\-proto-redir "
+Tells curl to limit what protocols it may use on redirect. Protocols denied by
+\-\-proto are not overridden by this option. See \-\-proto for how protocols are
+represented.
+
+Example, allow only HTTP and HTTPS on redirect:
+
+.nf
+ curl \-\-proto-redir \-all,http,https http://example.com
+.fi
+
+By default curl will only allow HTTP, HTTPS, FTP and FTPS on redirect (since
+7.65.2). Specifying \fIall\fP or \fI+all\fP enables all protocols on redirects, which
+is not good for security.
+
+Example:
+.nf
+ curl --proto-redir =http,https https://example.com
+.fi
+
+See also \fI--proto\fP.
+.IP "\-\-proto "
+Tells curl to limit what protocols it may use for transfers. Protocols are
+evaluated left to right, are comma separated, and are each a protocol name or
+\&\(aqall', optionally prefixed by zero or more modifiers. Available modifiers are:
+.RS
+.TP 3
+.B +
+Permit this protocol in addition to protocols already permitted (this is
+the default if no modifier is used).
+.TP
+.B \-
+Deny this protocol, removing it from the list of protocols already permitted.
+.TP
+.B =
+Permit only this protocol (ignoring the list already permitted), though
+subject to later modification by subsequent entries in the comma separated
+list.
+.RE
+.IP
+For example:
+.RS
+.TP 15
+.B \fI\-\-proto\fP \-ftps
+uses the default protocols, but disables ftps
+.TP
+.B  \fI\-\-proto\fP \-all,https,+http
+only enables http and https
+.TP
+.B \fI\-\-proto\fP =http,https
+also only enables http and https
+.RE
+.IP
+Unknown protocols produce a warning. This allows scripts to safely rely on
+being able to disable potentially dangerous protocols, without relying upon
+support for that protocol being built into curl to avoid an error.
+
+This option can be used multiple times, in which case the effect is the same
+as concatenating the protocols into one instance of the option.
+
+Example:
+.nf
+ curl --proto =http,https,sftp https://example.com
+.fi
+
+See also \fI--proto-redir\fP and \fI--proto-default\fP.
+.IP "\-\-proxy-anyauth"
+Tells curl to pick a suitable authentication method when communicating with
+the given HTTP proxy. This might cause an extra request/response round-trip.
+
+Example:
+.nf
+ curl --proxy-anyauth --proxy-user user:passwd -x proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP, \fI--proxy-basic\fP and \fI--proxy-digest\fP.
+.IP "\-\-proxy-basic"
+Tells curl to use HTTP Basic authentication when communicating with the given
+proxy. Use \-\-basic for enabling HTTP Basic with a remote host. Basic is the
+default authentication method curl uses with proxies.
+
+Example:
+.nf
+ curl --proxy-basic --proxy-user user:passwd -x proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP, \fI--proxy-anyauth\fP and \fI--proxy-digest\fP.
+.IP "\-\-proxy-cacert "
+Same as \-\-cacert but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-cacert CA-file.txt -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-capath\fP, \fI--cacert\fP, \fI--capath\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-capath "
+Same as \-\-capath but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-capath /local/directory -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-cacert\fP, \fI-x, --proxy\fP and \fI--capath\fP. Added in 7.52.0.
+.IP "\-\-proxy-cert-type "
+Same as \-\-cert-type but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-cert-type PEM --proxy-cert file -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-cert\fP. Added in 7.52.0.
+.IP "\-\-proxy-cert "
+Same as \-\-cert but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-cert file -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-cert-type\fP. Added in 7.52.0.
+.IP "\-\-proxy-ciphers "
+Same as \-\-ciphers but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-ciphers ECDHE-ECDSA-AES256-CCM8 -x https://proxy https://example.com
+.fi
+
+See also \fI--ciphers\fP, \fI--curves\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-crlfile "
+Same as \-\-crlfile but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-crlfile rejects.txt -x https://proxy https://example.com
+.fi
+
+See also \fI--crlfile\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-digest"
+Tells curl to use HTTP Digest authentication when communicating with the given
+proxy. Use \-\-digest for enabling HTTP Digest with a remote host.
+
+Example:
+.nf
+ curl --proxy-digest --proxy-user user:passwd -x proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP, \fI--proxy-anyauth\fP and \fI--proxy-basic\fP.
+.IP "\-\-proxy-header 
"
+(HTTP) Extra header to include in the request when sending HTTP to a proxy. You may
+specify any number of extra headers. This is the equivalent option to \-\-header
+but is for proxy communication only like in CONNECT requests when you want a
+separate header sent to the proxy to what is sent to the actual remote host.
+
+curl will make sure that each header you add/replace is sent with the proper
+end-of-line marker, you should thus \fBnot\fP add that as a part of the header
+content: do not add newlines or carriage returns, they will only mess things
+up for you.
+
+Headers specified with this option will not be included in requests that curl
+knows will not be sent to a proxy.
+
+Starting in 7.55.0, this option can take an argument in @filename style, which
+then adds a header for each line in the input file. Using @- will make curl
+read the header file from stdin.
+
+This option can be used multiple times to add/replace/remove multiple headers.
+
+Examples:
+.nf
+ curl --proxy-header "X-First-Name: Joe" -x http://proxy https://example.com
+ curl --proxy-header "User-Agent: surprise" -x http://proxy https://example.com
+ curl --proxy-header "Host:" -x http://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP. Added in 7.37.0.
+.IP "\-\-proxy-insecure"
+Same as \-\-insecure but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-insecure -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI-k, --insecure\fP. Added in 7.52.0.
+.IP "\-\-proxy-key-type "
+Same as \-\-key-type but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-key-type DER --proxy-key here -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-key\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-key "
+Same as \-\-key but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-key here -x https://proxy https://example.com
+.fi
+
+See also \fI--proxy-key-type\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-negotiate"
+Tells curl to use HTTP Negotiate (SPNEGO) authentication when communicating
+with the given proxy. Use \-\-negotiate for enabling HTTP Negotiate (SPNEGO)
+with a remote host.
+
+Example:
+.nf
+ curl --proxy-negotiate --proxy-user user:passwd -x proxy https://example.com
+.fi
+
+See also \fI--proxy-anyauth\fP and \fI--proxy-basic\fP.
+.IP "\-\-proxy-ntlm"
+Tells curl to use HTTP NTLM authentication when communicating with the given
+proxy. Use \-\-ntlm for enabling NTLM with a remote host.
+
+Example:
+.nf
+ curl --proxy-ntlm --proxy-user user:passwd -x http://proxy https://example.com
+.fi
+
+See also \fI--proxy-negotiate\fP and \fI--proxy-anyauth\fP.
+.IP "\-\-proxy-pass "
+Same as \-\-pass but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-pass secret --proxy-key here -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI--proxy-key\fP. Added in 7.52.0.
+.IP "\-\-proxy-pinnedpubkey "
+(TLS) Tells curl to use the specified public key file (or hashes) to verify the
+proxy. This can be a path to a file which contains a single public key in PEM
+or DER format, or any number of base64 encoded sha256 hashes preceded by
+\(aqsha256//' and separated by ';'.
+
+When negotiating a TLS or SSL connection, the server sends a certificate
+indicating its identity. A public key is extracted from this certificate and
+if it does not exactly match the public key provided to this option, curl will
+abort the connection before sending or receiving any data.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --proxy-pinnedpubkey keyfile https://example.com
+ curl --proxy-pinnedpubkey 'sha256//ce118b51897f4452dc' https://example.com
+.fi
+
+See also \fI--pinnedpubkey\fP and \fI-x, --proxy\fP. Added in 7.59.0.
+.IP "\-\-proxy-service-name "
+This option allows you to change the service name for proxy negotiation.
+
+Example:
+.nf
+ curl --proxy-service-name "shrubbery" -x proxy https://example.com
+.fi
+
+See also \fI--service-name\fP and \fI-x, --proxy\fP. Added in 7.43.0.
+.IP "\-\-proxy-ssl-allow-beast"
+Same as \-\-ssl-allow-beast but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-ssl-allow-beast -x https://proxy https://example.com
+.fi
+
+See also \fI--ssl-allow-beast\fP and \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-\-proxy-ssl-auto-client-cert"
+Same as \-\-ssl-auto-client-cert but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-ssl-auto-client-cert -x https://proxy https://example.com
+.fi
+
+See also \fI--ssl-auto-client-cert\fP and \fI-x, --proxy\fP. Added in 7.77.0.
+.IP "\-\-proxy-tls13-ciphers "
+(TLS) Specifies which cipher suites to use in the connection to your HTTPS proxy
+when it negotiates TLS 1.3. The list of ciphers suites must specify valid
+ciphers. Read up on TLS 1.3 cipher suite details on this URL:
+
+.nf
+ https://curl.se/docs/ssl-ciphers.html
+.fi
+
+This option is currently used only when curl is built to use OpenSSL 1.1.1 or
+later. If you are using a different SSL backend you can try setting TLS 1.3
+cipher suites by using the \-\-proxy-ciphers option.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --proxy-tls13-ciphers TLS_AES_128_GCM_SHA256 -x proxy https://example.com
+.fi
+
+See also \fI--tls13-ciphers\fP and \fI--curves\fP. Added in 7.61.0.
+.IP "\-\-proxy-tlsauthtype "
+Same as \-\-tlsauthtype but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-tlsauthtype SRP -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI--proxy-tlsuser\fP. Added in 7.52.0.
+.IP "\-\-proxy-tlspassword "
+Same as \-\-tlspassword but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-tlspassword passwd -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI--proxy-tlsuser\fP. Added in 7.52.0.
+.IP "\-\-proxy-tlsuser "
+Same as \-\-tlsuser but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-tlsuser smith -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP and \fI--proxy-tlspassword\fP. Added in 7.52.0.
+.IP "\-\-proxy-tlsv1"
+Same as \-\-tlsv1 but used in HTTPS proxy context.
+
+Example:
+.nf
+ curl --proxy-tlsv1 -x https://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP. Added in 7.52.0.
+.IP "\-U, \-\-proxy-user "
+Specify the user name and password to use for proxy authentication.
+
+If you use a Windows SSPI-enabled curl binary and do either Negotiate or NTLM
+authentication then you can tell curl to select the user name and password
+from your environment by specifying a single colon with this option: "-U :".
+
+On systems where it works, curl will hide the given option argument from
+process listings. This is not enough to protect credentials from possibly
+getting seen by other users on the same system as they will still be visible
+for a moment before cleared. Such sensitive data should be retrieved from a
+file instead or similar and never used in clear text in a command line.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --proxy-user name:pwd -x proxy https://example.com
+.fi
+
+See also \fI--proxy-pass\fP.
+.IP "\-x, \-\-proxy [protocol://]host[:port]"
+Use the specified proxy.
+
+The proxy string can be specified with a protocol:// prefix. No protocol
+specified or http:// will be treated as HTTP proxy. Use socks4://, socks4a://,
+socks5:// or socks5h:// to request a specific SOCKS version to be used.
+
+
+HTTPS proxy support via https:// protocol prefix was added in 7.52.0 for
+OpenSSL, GnuTLS and NSS.
+
+Unrecognized and unsupported proxy protocols cause an error since 7.52.0.
+Prior versions may ignore the protocol and use http:// instead.
+
+If the port number is not specified in the proxy string, it is assumed to be
+1080.
+
+This option overrides existing environment variables that set the proxy to
+use. If there\(aqs an environment variable setting a proxy, you can set proxy to
+\&"" to override it.
+
+All operations that are performed over an HTTP proxy will transparently be
+converted to HTTP. It means that certain protocol specific operations might
+not be available. This is not the case if you can tunnel through the proxy, as
+one with the \-\-proxytunnel option.
+
+User and password that might be provided in the proxy string are URL decoded
+by curl. This allows you to pass in special characters such as @ by using %40
+or pass in a colon with %3a.
+
+The proxy host can be specified the same way as the proxy environment
+variables, including the protocol prefix (http://) and the embedded user +
+password.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --proxy http://proxy.example https://example.com
+.fi
+
+See also \fI--socks5\fP and \fI--proxy-basic\fP.
+.IP "\-\-proxy1.0 "
+Use the specified HTTP 1.0 proxy. If the port number is not specified, it is
+assumed at port 1080.
+
+The only difference between this and the HTTP proxy option \fI\-x, \-\-proxy\fP, is that
+attempts to use CONNECT through the proxy will specify an HTTP 1.0 protocol
+instead of the default HTTP 1.1.
+
+Example:
+.nf
+ curl --proxy1.0 -x http://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP, \fI--socks5\fP and \fI--preproxy\fP.
+.IP "\-p, \-\-proxytunnel"
+When an HTTP proxy is used \fI\-x, \-\-proxy\fP, this option will make curl tunnel through
+the proxy. The tunnel approach is made with the HTTP proxy CONNECT request and
+requires that the proxy allows direct connect to the remote port number curl
+wants to tunnel through to.
+
+To suppress proxy CONNECT response headers when curl is set to output headers
+use \fI\-\-suppress-connect-headers\fP.
+
+Example:
+.nf
+ curl --proxytunnel -x http://proxy https://example.com
+.fi
+
+See also \fI-x, --proxy\fP.
+.IP "\-\-pubkey "
+(SFTP SCP) Public key file name. Allows you to provide your public key in this separate
+file.
+
+If this option is used several times, the last one will be used.
+
+(As of 7.39.0, curl attempts to automatically extract the public key from the
+private key file, so passing this option is generally not required. Note that
+this public key extraction requires libcurl to be linked against a copy of
+libssh2 1.2.8 or higher that is itself linked against OpenSSL.)
+
+Example:
+.nf
+ curl --pubkey file.pub sftp://example.com/
+.fi
+
+See also \fI--pass\fP.
+.IP "\-Q, \-\-quote "
+(FTP SFTP) Send an arbitrary command to the remote FTP or SFTP server. Quote commands are
+sent BEFORE the transfer takes place (just after the initial PWD command in an
+FTP transfer, to be exact). To make commands take place after a successful
+transfer, prefix them with a dash \(aq-'.
+
+(FTP only) To make commands be sent after curl has changed the working
+directory, just before the file transfer command(s), prefix the command with a
+\(aq+'. This is not performed when a directory listing is performed.
+
+You may specify any number of commands.
+
+By default curl will stop at first failure. To make curl continue even if the
+command fails, prefix the command with an asterisk (*). Otherwise, if the
+server returns failure for one of the commands, the entire operation will be
+aborted.
+
+You must send syntactically correct FTP commands as RFC 959 defines to FTP
+servers, or one of the commands listed below to SFTP servers.
+
+This option can be used multiple times.
+
+SFTP is a binary protocol. Unlike for FTP, curl interprets SFTP quote commands
+itself before sending them to the server. File names may be quoted
+shell-style to embed spaces or special characters. Following is the list of
+all supported SFTP quote commands:
+.RS
+.IP "atime date file"
+The atime command sets the last access time of the file named by the file
+operand. The  can be all sorts of date strings, see the
+\fIcurl_getdate(3)\fP man page for date expression details. (Added in 7.73.0)
+.IP "chgrp group file"
+The chgrp command sets the group ID of the file named by the file operand to
+the group ID specified by the group operand. The group operand is a decimal
+integer group ID.
+.IP "chmod mode file"
+The chmod command modifies the file mode bits of the specified file. The
+mode operand is an octal integer mode number.
+.IP "chown user file"
+The chown command sets the owner of the file named by the file operand to the
+user ID specified by the user operand. The user operand is a decimal
+integer user ID.
+.IP "ln source_file target_file"
+The ln and symlink commands create a symbolic link at the target_file location
+pointing to the source_file location.
+.IP "mkdir directory_name"
+The mkdir command creates the directory named by the directory_name operand.
+.IP "mtime date file"
+The mtime command sets the last modification time of the file named by the
+file operand. The  can be all sorts of date strings, see the
+\fIcurl_getdate(3)\fP man page for date expression details. (Added in 7.73.0)
+.IP "pwd"
+The pwd command returns the absolute pathname of the current working directory.
+.IP "rename source target"
+The rename command renames the file or directory named by the source
+operand to the destination path named by the target operand.
+.IP "rm file"
+The rm command removes the file specified by the file operand.
+.IP "rmdir directory"
+The rmdir command removes the directory entry specified by the directory
+operand, provided it is empty.
+.IP "symlink source_file target_file"
+See ln.
+.RE
+
+Example:
+.nf
+ curl --quote "DELE file" ftp://example.com/foo
+.fi
+
+See also \fI-X, --request\fP.
+.IP "\-\-random-file "
+Specify the path name to file containing what will be considered as random
+data. The data may be used to seed the random engine for SSL connections. See
+also the \-\-egd-file option.
+
+Example:
+.nf
+ curl --random-file rubbish https://example.com
+.fi
+
+See also \fI--egd-file\fP.
+.IP "\-r, \-\-range "
+(HTTP FTP SFTP FILE) Retrieve a byte range (i.e. a partial document) from an HTTP/1.1, FTP or SFTP
+server or a local FILE. Ranges can be specified in a number of ways.
+.RS
+.TP 10
+.B 0-499
+specifies the first 500 bytes
+.TP
+.B 500-999
+specifies the second 500 bytes
+.TP
+.B \-500
+specifies the last 500 bytes
+.TP
+.B 9500-
+specifies the bytes from offset 9500 and forward
+.TP
+.B 0-0,-1
+specifies the first and last byte only(*)(HTTP)
+.TP
+.B 100-199,500-599
+specifies two separate 100-byte ranges(*) (HTTP)
+.RE
+.IP
+(*) = NOTE that this will cause the server to reply with a multipart
+response, which will be returned as-is by curl! Parsing or otherwise
+transforming this response is the responsibility of the caller.
+
+Only digit characters (0-9) are valid in the \(aqstart' and 'stop' fields of the
+\&\(aqstart-stop' range syntax. If a non-digit character is given in the range,
+the server\(aqs response will be unspecified, depending on the server's
+configuration.
+
+You should also be aware that many HTTP/1.1 servers do not have this feature
+enabled, so that when you attempt to get a range, you will instead get the
+whole document.
+
+FTP and SFTP range downloads only support the simple \(aqstart-stop' syntax
+(optionally with one of the numbers omitted). FTP use depends on the extended
+FTP command SIZE.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --range 22-44 https://example.com
+.fi
+
+See also \fI-C, --continue-at\fP and \fI-a, --append\fP.
+.IP "\-\-raw"
+(HTTP) When used, it disables all internal HTTP decoding of content or transfer
+encodings and instead makes them passed on unaltered, raw.
+
+Example:
+.nf
+ curl --raw https://example.com
+.fi
+
+See also \fI--tr-encoding\fP.
+.IP "\-e, \-\-referer "
+(HTTP) Sends the "Referrer Page" information to the HTTP server. This can also be set
+with the \-\-header flag of course. When used with \-\-location you can append
+";auto" to the \-\-referer URL to make curl automatically set the previous URL
+when it follows a Location: header. The \&";auto" string can be used alone,
+even if you do not set an initial \fI\-e, \-\-referer\fP.
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl --referer "https://fake.example" https://example.com
+ curl --referer "https://fake.example;auto" -L https://example.com
+ curl --referer ";auto" -L https://example.com
+.fi
+
+See also \fI-A, --user-agent\fP and \fI-H, --header\fP.
+.IP "\-J, \-\-remote-header-name"
+(HTTP) This option tells the \-\-remote-name option to use the server-specified
+Content-Disposition filename instead of extracting a filename from the URL. If
+the server-provided file name contains a path, that will be stripped off
+before the file name is used.
+
+The file is saved in the current directory, or in the directory specified with
+\fI\-\-output-dir\fP.
+
+If the server specifies a file name and a file with that name already exists
+in the destination directory, it will not be overwritten and an error will
+occur. If the server does not specify a file name then this option has no
+effect.
+
+There\(aqs no attempt to decode %-sequences (yet) in the provided file name, so
+this option may provide you with rather unexpected file names.
+
+\fBWARNING\fP: Exercise judicious use of this option, especially on Windows. A
+rogue server could send you the name of a DLL or other file that could be
+loaded automatically by Windows or some third party software.
+
+Example:
+.nf
+ curl -OJ https://example.com/file
+.fi
+
+See also \fI-O, --remote-name\fP.
+.IP "\-\-remote-name-all"
+This option changes the default action for all given URLs to be dealt with as
+if \-\-remote-name were used for each one. So if you want to disable that for a
+specific URL after \-\-remote-name-all has been used, you must use "-o \-" or
+\-\-no-remote-name.
+
+Example:
+.nf
+ curl --remote-name-all ftp://example.com/file1 ftp://example.com/file2
+.fi
+
+See also \fI-O, --remote-name\fP.
+.IP "\-O, \-\-remote-name"
+Write output to a local file named like the remote file we get. (Only the file
+part of the remote file is used, the path is cut off.)
+
+The file will be saved in the current working directory. If you want the file
+saved in a different directory, make sure you change the current working
+directory before invoking curl with this option.
+
+The remote file name to use for saving is extracted from the given URL,
+nothing else, and if it already exists it will be overwritten. If you want the
+server to be able to choose the file name refer to \-\-remote-header-name which
+can be used in addition to this option. If the server chooses a file name and
+that name already exists it will not be overwritten.
+
+There is no URL decoding done on the file name. If it has %20 or other URL
+encoded parts of the name, they will end up as-is as file name.
+
+You may use this option as many times as the number of URLs you have.
+
+Example:
+.nf
+ curl -O https://example.com/filename
+.fi
+
+See also \fI--remote-name-all\fP.
+.IP "\-R, \-\-remote-time"
+When used, this will make curl attempt to figure out the timestamp of the
+remote file, and if that is available make the local file get that same
+timestamp.
+
+Example:
+.nf
+ curl --remote-time -o foo https://example.com
+.fi
+
+See also \fI-O, --remote-name\fP and \fI-z, --time-cond\fP.
+.IP "\-\-remove-on-error"
+When curl returns an error when told to save output in a local file, this
+option removes that saved file before exiting. This prevents curl from
+leaving a partial file in the case of an error during transfer.
+
+If the output is not a file, this option has no effect.
+
+Example:
+.nf
+ curl --remove-on-error -o output https://example.com
+.fi
+
+See also \fI-f, --fail\fP. Added in 7.83.0.
+.IP "\-\-request-target "
+(HTTP) Tells curl to use an alternative "target" (path) instead of using the path as
+provided in the URL. Particularly useful when wanting to issue HTTP requests
+without leading slash or other data that does not follow the regular URL
+pattern, like "OPTIONS *".
+
+Example:
+.nf
+ curl --request-target "*" -X OPTIONS https://example.com
+.fi
+
+See also \fI-X, --request\fP. Added in 7.55.0.
+.IP "\-X, \-\-request "
+(HTTP) Specifies a custom request method to use when communicating with the
+HTTP server. The specified request method will be used instead of the method
+otherwise used (which defaults to GET). Read the HTTP 1.1 specification for
+details and explanations. Common additional HTTP requests include PUT and
+DELETE, but related technologies like WebDAV offers PROPFIND, COPY, MOVE and
+more.
+
+Normally you do not need this option. All sorts of GET, HEAD, POST and PUT
+requests are rather invoked by using dedicated command line options.
+
+This option only changes the actual word used in the HTTP request, it does not
+alter the way curl behaves. So for example if you want to make a proper HEAD
+request, using \-X HEAD will not suffice. You need to use the \-\-head option.
+
+The method string you set with \-\-request will be used for all requests, which
+if you for example use \-\-location may cause unintended side-effects when curl
+does not change request method according to the HTTP 30x response codes \- and
+similar.
+
+(FTP)
+Specifies a custom FTP command to use instead of LIST when doing file lists
+with FTP.
+
+(POP3)
+Specifies a custom POP3 command to use instead of LIST or RETR.
+
+
+(IMAP)
+Specifies a custom IMAP command to use instead of LIST. (Added in 7.30.0)
+
+(SMTP)
+Specifies a custom SMTP command to use instead of HELP or VRFY. (Added in 7.34.0)
+
+If this option is used several times, the last one will be used.
+
+Examples:
+.nf
+ curl -X "DELETE" https://example.com
+ curl -X NLST ftp://example.com/
+.fi
+
+See also \fI--request-target\fP.
+.IP "\-\-resolve <[+]host:port:addr[,addr]...>"
+Provide a custom address for a specific host and port pair. Using this, you
+can make the curl requests(s) use a specified address and prevent the
+otherwise normally resolved address to be used. Consider it a sort of
+/etc/hosts alternative provided on the command line. The port number should be
+the number used for the specific protocol the host will be used for. It means
+you need several entries if you want to provide address for the same host but
+different ports.
+
+By specifying \(aq*' as host you can tell curl to resolve any host and specific
+port pair to the specified address. Wildcard is resolved last so any \-\-resolve
+with a specific host and port will be used first.
+
+The provided address set by this option will be used even if \-\-ipv4 or \-\-ipv6
+is set to make curl use another IP version.
+
+By prefixing the host with a \(aq+' you can make the entry time out after curl's
+default timeout (1 minute). Note that this will only make sense for long
+running parallel transfers with a lot of files. In such cases, if this option
+is used curl will try to resolve the host as it normally would once the
+timeout has expired.
+
+Support for providing the IP address within [brackets] was added in 7.57.0.
+
+Support for providing multiple IP addresses per entry was added in 7.59.0.
+
+Support for resolving with wildcard was added in 7.64.0.
+
+Support for the \(aq+' prefix was was added in 7.75.0.
+
+This option can be used many times to add many host names to resolve.
+
+Example:
+.nf
+ curl --resolve example.com:443:127.0.0.1 https://example.com
+.fi
+
+See also \fI--connect-to\fP and \fI--alt-svc\fP.
+.IP "\-\-retry-all-errors"
+Retry on any error. This option is used together with \fI\-\-retry\fP.
+
+This option is the "sledgehammer" of retrying. Do not use this option by
+default (eg in curlrc), there may be unintended consequences such as sending or
+receiving duplicate data. Do not use with redirected input or output. You\(aqd be
+much better off handling your unique problems in shell script. Please read the
+example below.
+
+\fBWARNING\fP: For server compatibility curl attempts to retry failed flaky
+transfers as close as possible to how they were started, but this is not
+possible with redirected input or output. For example, before retrying it
+removes output data from a failed partial transfer that was written to an
+output file. However this is not true of data redirected to a | pipe or >
+file, which are not reset. We strongly suggest you do not parse or record
+output via redirect in combination with this option, since you may receive
+duplicate data.
+
+By default curl will not error on an HTTP response code that indicates an HTTP
+error, if the transfer was successful. For example, if a server replies 404
+Not Found and the reply is fully received then that is not an error. When
+\-\-retry is used then curl will retry on some HTTP response codes that indicate
+transient HTTP errors, but that does not include most 4xx response codes such
+as 404. If you want to retry on all response codes that indicate HTTP errors
+(4xx and 5xx) then combine with \fI\-f, \-\-fail\fP.
+
+Example:
+.nf
+ curl --retry 5 --retry-all-errors https://example.com
+.fi
+
+See also \fI--retry\fP. Added in 7.71.0.
+.IP "\-\-retry-connrefused"
+In addition to the other conditions, consider ECONNREFUSED as a transient
+error too for \fI\-\-retry\fP. This option is used together with \-\-retry.
+
+Example:
+.nf
+ curl --retry-connrefused --retry https://example.com
+.fi
+
+See also \fI--retry\fP and \fI--retry-all-errors\fP. Added in 7.52.0.
+.IP "\-\-retry-delay "
+Make curl sleep this amount of time before each retry when a transfer has
+failed with a transient error (it changes the default backoff time algorithm
+between retries). This option is only interesting if \-\-retry is also
+used. Setting this delay to zero will make curl use the default backoff time.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --retry-delay 5 --retry https://example.com
+.fi
+
+See also \fI--retry\fP.
+.IP "\-\-retry-max-time "
+The retry timer is reset before the first transfer attempt. Retries will be
+done as usual (see \fI\-\-retry\fP) as long as the timer has not reached this given
+limit. Notice that if the timer has not reached the limit, the request will be
+made and while performing, it may take longer than this given time period. To
+limit a single request\(aqs maximum time, use \fI\-m, \-\-max-time\fP. Set this option to
+zero to not timeout retries.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --retry-max-time 30 --retry 10 https://example.com
+.fi
+
+See also \fI--retry\fP.
+.IP "\-\-retry "
+If a transient error is returned when curl tries to perform a transfer, it
+will retry this number of times before giving up. Setting the number to 0
+makes curl do no retries (which is the default). Transient error means either:
+a timeout, an FTP 4xx response code or an HTTP 408, 429, 500, 502, 503 or 504
+response code.
+
+When curl is about to retry a transfer, it will first wait one second and then
+for all forthcoming retries it will double the waiting time until it reaches
+10 minutes which then will be the delay between the rest of the retries. By
+using \-\-retry-delay you disable this exponential backoff algorithm. See also
+\-\-retry-max-time to limit the total time allowed for retries.
+
+Since curl 7.66.0, curl will comply with the Retry-After: response header if
+one was present to know when to issue the next retry.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --retry 7 https://example.com
+.fi
+
+See also \fI--retry-max-time\fP.
+.IP "\-\-sasl-authzid "
+Use this authorization identity (authzid), during SASL PLAIN authentication,
+in addition to the authentication identity (authcid) as specified by \fI\-u, \-\-user\fP.
+
+If the option is not specified, the server will derive the authzid from the
+authcid, but if specified, and depending on the server implementation, it may
+be used to access another user\(aqs inbox, that the user has been granted access
+to, or a shared mailbox for example.
+
+Example:
+.nf
+ curl --sasl-authzid zid imap://example.com/
+.fi
+
+See also \fI--login-options\fP. Added in 7.66.0.
+.IP "\-\-sasl-ir"
+Enable initial response in SASL authentication.
+
+Example:
+.nf
+ curl --sasl-ir imap://example.com/
+.fi
+
+See also \fI--sasl-authzid\fP. Added in 7.31.0.
+.IP "\-\-service-name "
+This option allows you to change the service name for SPNEGO.
+
+Examples: \fI\-\-negotiate\fP \-\-service-name sockd would use sockd/server-name.
+
+Example:
+.nf
+ curl --service-name sockd/server https://example.com
+.fi
+
+See also \fI--negotiate\fP and \fI--proxy-service-name\fP. Added in 7.43.0.
+.IP "\-S, \-\-show-error"
+When used with \fI\-s, \-\-silent\fP, it makes curl show an error message if it fails.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl --show-error --silent https://example.com
+.fi
+
+See also \fI--no-progress-meter\fP.
+.IP "\-s, \-\-silent"
+Silent or quiet mode. Do not show progress meter or error messages. Makes Curl
+mute. It will still output the data you ask for, potentially even to the
+terminal/stdout unless you redirect it.
+
+Use \-\-show-error in addition to this option to disable progress meter but
+still show error messages.
+
+Example:
+.nf
+ curl -s https://example.com
+.fi
+
+See also \fI-v, --verbose\fP, \fI--stderr\fP and \fI--no-progress-meter\fP.
+.IP "\-\-socks4 "
+Use the specified SOCKS4 proxy. If the port number is not specified, it is
+assumed at port 1080. Using this socket type make curl resolve the host name
+and passing the address on to the proxy.
+
+This option overrides any previous use of \fI\-x, \-\-proxy\fP, as they are mutually
+exclusive.
+
+This option is superfluous since you can specify a socks4 proxy with \-\-proxy
+using a socks4:// protocol prefix.
+
+Since 7.52.0, \-\-preproxy can be used to specify a SOCKS proxy at the same time
+\-\-proxy is used with an HTTP/HTTPS proxy. In such a case curl first connects to
+the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --socks4 hostname:4096 https://example.com
+.fi
+
+See also \fI--socks4a\fP, \fI--socks5\fP and \fI--socks5-hostname\fP.
+.IP "\-\-socks4a "
+Use the specified SOCKS4a proxy. If the port number is not specified, it is
+assumed at port 1080. This asks the proxy to resolve the host name.
+
+This option overrides any previous use of \fI\-x, \-\-proxy\fP, as they are mutually
+exclusive.
+
+This option is superfluous since you can specify a socks4a proxy with \-\-proxy
+using a socks4a:// protocol prefix.
+
+Since 7.52.0, \-\-preproxy can be used to specify a SOCKS proxy at the same time
+\-\-proxy is used with an HTTP/HTTPS proxy. In such a case curl first connects to
+the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --socks4a hostname:4096 https://example.com
+.fi
+
+See also \fI--socks4\fP, \fI--socks5\fP and \fI--socks5-hostname\fP.
+.IP "\-\-socks5-basic"
+Tells curl to use username/password authentication when connecting to a SOCKS5
+proxy.  The username/password authentication is enabled by default.  Use
+\-\-socks5-gssapi to force GSS-API authentication to SOCKS5 proxies.
+
+Example:
+.nf
+ curl --socks5-basic --socks5 hostname:4096 https://example.com
+.fi
+
+See also \fI--socks5\fP. Added in 7.55.0.
+.IP "\-\-socks5-gssapi-nec"
+As part of the GSS-API negotiation a protection mode is negotiated. RFC 1961
+says in section 4.3/4.4 it should be protected, but the NEC reference
+implementation does not. The option \-\-socks5-gssapi-nec allows the
+unprotected exchange of the protection mode negotiation.
+
+Example:
+.nf
+ curl --socks5-gssapi-nec --socks5 hostname:4096 https://example.com
+.fi
+
+See also \fI--socks5\fP.
+.IP "\-\-socks5-gssapi-service "
+The default service name for a socks server is rcmd/server-fqdn. This option
+allows you to change it.
+
+Examples: \-\-socks5 proxy-name \-\-socks5-gssapi-service sockd would use
+sockd/proxy-name \-\-socks5 proxy-name \-\-socks5-gssapi-service sockd/real-name
+would use sockd/real-name for cases where the proxy-name does not match the
+principal name.
+
+Example:
+.nf
+ curl --socks5-gssapi-service sockd --socks5 hostname:4096 https://example.com
+.fi
+
+See also \fI--socks5\fP.
+.IP "\-\-socks5-gssapi"
+Tells curl to use GSS-API authentication when connecting to a SOCKS5 proxy.
+The GSS-API authentication is enabled by default (if curl is compiled with
+GSS-API support).  Use \-\-socks5-basic to force username/password authentication
+to SOCKS5 proxies.
+
+Example:
+.nf
+ curl --socks5-gssapi --socks5 hostname:4096 https://example.com
+.fi
+
+See also \fI--socks5\fP. Added in 7.55.0.
+.IP "\-\-socks5-hostname "
+Use the specified SOCKS5 proxy (and let the proxy resolve the host name). If
+the port number is not specified, it is assumed at port 1080.
+
+This option overrides any previous use of \fI\-x, \-\-proxy\fP, as they are mutually
+exclusive.
+
+This option is superfluous since you can specify a socks5 hostname proxy with
+\-\-proxy using a socks5h:// protocol prefix.
+
+Since 7.52.0, \-\-preproxy can be used to specify a SOCKS proxy at the same time
+\-\-proxy is used with an HTTP/HTTPS proxy. In such a case curl first connects to
+the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --socks5-hostname proxy.example:7000 https://example.com
+.fi
+
+See also \fI--socks5\fP and \fI--socks4a\fP.
+.IP "\-\-socks5 "
+Use the specified SOCKS5 proxy \- but resolve the host name locally. If the
+port number is not specified, it is assumed at port 1080.
+
+This option overrides any previous use of \fI\-x, \-\-proxy\fP, as they are mutually
+exclusive.
+
+This option is superfluous since you can specify a socks5 proxy with \-\-proxy
+using a socks5:// protocol prefix.
+
+Since 7.52.0, \-\-preproxy can be used to specify a SOCKS proxy at the same time
+\-\-proxy is used with an HTTP/HTTPS proxy. In such a case curl first connects to
+the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy.
+
+If this option is used several times, the last one will be used.
+
+This option (as well as \fI\-\-socks4\fP) does not work with IPV6, FTPS or LDAP.
+
+Example:
+.nf
+ curl --socks5 proxy.example:7000 https://example.com
+.fi
+
+See also \fI--socks5-hostname\fP and \fI--socks4a\fP.
+.IP "\-Y, \-\-speed-limit "
+If a download is slower than this given speed (in bytes per second) for
+speed-time seconds it gets aborted. speed-time is set with \-\-speed-time and is
+30 if not set.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --speed-limit 300 --speed-time 10 https://example.com
+.fi
+
+See also \fI-y, --speed-time\fP, \fI--limit-rate\fP and \fI-m, --max-time\fP.
+.IP "\-y, \-\-speed-time "
+If a download is slower than speed-limit bytes per second during a speed-time
+period, the download gets aborted. If speed-time is used, the default
+speed-limit will be 1 unless set with \fI\-Y, \-\-speed-limit\fP.
+
+This option controls transfers and thus will not affect slow connects etc. If
+this is a concern for you, try the \-\-connect-timeout option.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --speed-limit 300 --speed-time 10 https://example.com
+.fi
+
+See also \fI-Y, --speed-limit\fP and \fI--limit-rate\fP.
+.IP "\-\-ssl-allow-beast"
+This option tells curl to not work around a security flaw in the SSL3 and
+TLS1.0 protocols known as BEAST.  If this option is not used, the SSL layer
+may use workarounds known to cause interoperability problems with some older
+SSL implementations.
+
+\fBWARNING\fP: this option loosens the SSL security, and by using this flag you
+ask for exactly that.
+
+Example:
+.nf
+ curl --ssl-allow-beast https://example.com
+.fi
+
+See also \fI--proxy-ssl-allow-beast\fP and \fI-k, --insecure\fP.
+.IP "\-\-ssl-auto-client-cert"
+Tell libcurl to automatically locate and use a client certificate for
+authentication, when requested by the server. This option is only supported
+for Schannel (the native Windows SSL library). Prior to 7.77.0 this was the
+default behavior in libcurl with Schannel. Since the server can request any
+certificate that supports client authentication in the OS certificate store it
+could be a privacy violation and unexpected.
+
+Example:
+.nf
+ curl --ssl-auto-client-cert https://example.com
+.fi
+
+See also \fI--proxy-ssl-auto-client-cert\fP. Added in 7.77.0.
+.IP "\-\-ssl-no-revoke"
+(Schannel) This option tells curl to disable certificate revocation checks.
+WARNING: this option loosens the SSL security, and by using this flag you ask
+for exactly that.
+
+Example:
+.nf
+ curl --ssl-no-revoke https://example.com
+.fi
+
+See also \fI--crlfile\fP. Added in 7.44.0.
+.IP "\-\-ssl-reqd"
+(FTP IMAP POP3 SMTP LDAP) Require SSL/TLS for the connection. Terminates the connection if the server
+does not support SSL/TLS.
+
+This option is handled in LDAP since version 7.81.0. It is fully supported
+by the openldap backend and rejected by the generic ldap backend if explicit
+TLS is required.
+
+This option was formerly known as \-\-ftp-ssl-reqd.
+
+Example:
+.nf
+ curl --ssl-reqd ftp://example.com
+.fi
+
+See also \fI--ssl\fP and \fI-k, --insecure\fP.
+.IP "\-\-ssl-revoke-best-effort"
+(Schannel) This option tells curl to ignore certificate revocation checks when
+they failed due to missing/offline distribution points for the revocation check
+lists.
+
+Example:
+.nf
+ curl --ssl-revoke-best-effort https://example.com
+.fi
+
+See also \fI--crlfile\fP and \fI-k, --insecure\fP. Added in 7.70.0.
+.IP "\-\-ssl"
+(FTP IMAP POP3 SMTP LDAP) Try to use SSL/TLS for the connection. Reverts to a non-secure connection if
+the server does not support SSL/TLS. See also \-\-ftp-ssl-control and \-\-ssl-reqd
+for different levels of encryption required.
+
+This option is handled in LDAP since version 7.81.0. It is fully supported
+by the openldap backend and ignored by the generic ldap backend.
+
+Please note that a server may close the connection if the negotiation does
+not succeed.
+
+This option was formerly known as \-\-ftp-ssl. That option
+name can still be used but will be removed in a future version.
+
+Example:
+.nf
+ curl --ssl pop3://example.com/
+.fi
+
+See also \fI-k, --insecure\fP and \fI--ciphers\fP.
+.IP "\-2, \-\-sslv2"
+(SSL) This option previously asked curl to use SSLv2, but starting in curl 7.77.0
+this instruction is ignored. SSLv2 is widely considered insecure (see RFC
+6176).
+
+Example:
+.nf
+ curl --sslv2 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http2\fP. \fI-2, --sslv2\fP requires that the underlying libcurl was built to support TLS. This option is mutually exclusive to \fI-3, --sslv3\fP and \fI-1, --tlsv1\fP and \fI--tlsv1.1\fP and \fI--tlsv1.2\fP.
+.IP "\-3, \-\-sslv3"
+(SSL) This option previously asked curl to use SSLv3, but starting in curl 7.77.0
+this instruction is ignored. SSLv3 is widely considered insecure (see RFC
+7568).
+
+Example:
+.nf
+ curl --sslv3 https://example.com
+.fi
+
+See also \fI--http1.1\fP and \fI--http2\fP. \fI-3, --sslv3\fP requires that the underlying libcurl was built to support TLS. This option is mutually exclusive to \fI-2, --sslv2\fP and \fI-1, --tlsv1\fP and \fI--tlsv1.1\fP and \fI--tlsv1.2\fP.
+.IP "\-\-stderr "
+Redirect all writes to stderr to the specified file instead. If the file name
+is a plain \(aq-', it is instead written to stdout.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --stderr output.txt https://example.com
+.fi
+
+See also \fI-v, --verbose\fP and \fI-s, --silent\fP.
+.IP "\-\-styled-output"
+Enables the automatic use of bold font styles when writing HTTP headers to the
+terminal. Use \-\-no-styled-output to switch them off.
+
+This option is global and does not need to be specified for each use of
+\fI\-:, \-\-next\fP.
+
+Example:
+.nf
+ curl --styled-output -I https://example.com
+.fi
+
+See also \fI-I, --head\fP and \fI-v, --verbose\fP. Added in 7.61.0.
+.IP "\-\-suppress-connect-headers"
+When \-\-proxytunnel is used and a CONNECT request is made do not output proxy
+CONNECT response headers. This option is meant to be used with \-\-dump-header or
+\-\-include which are used to show protocol headers in the output. It has no
+effect on debug options such as \-\-verbose or \fI\-\-trace\fP, or any statistics.
+
+Example:
+.nf
+ curl --suppress-connect-headers --include -x proxy https://example.com
+.fi
+
+See also \fI-D, --dump-header\fP, \fI-i, --include\fP and \fI-p, --proxytunnel\fP. Added in 7.54.0.
+.IP "\-\-tcp-fastopen"
+Enable use of TCP Fast Open (RFC7413).
+
+Example:
+.nf
+ curl --tcp-fastopen https://example.com
+.fi
+
+See also \fI--false-start\fP. Added in 7.49.0.
+.IP "\-\-tcp-nodelay"
+Turn on the TCP_NODELAY option. See the \fIcurl_easy_setopt(3)\fP man page for
+details about this option.
+
+Since 7.50.2, curl sets this option by default and you need to explicitly
+switch it off if you do not want it on.
+
+Example:
+.nf
+ curl --tcp-nodelay https://example.com
+.fi
+
+See also \fI-N, --no-buffer\fP.
+.IP "\-t, \-\-telnet-option "
+Pass options to the telnet protocol. Supported options are:
+
+TTYPE= Sets the terminal type.
+
+XDISPLOC= Sets the X display location.
+
+NEW_ENV= Sets an environment variable.
+
+Example:
+.nf
+ curl -t TTYPE=vt100 telnet://example.com/
+.fi
+
+See also \fI-K, --config\fP.
+.IP "\-\-tftp-blksize "
+(TFTP) Set TFTP BLKSIZE option (must be >512). This is the block size that curl will
+try to use when transferring data to or from a TFTP server. By default 512
+bytes will be used.
+
+If this option is used several times, the last one will be used.
+
+Example:
+.nf
+ curl --tftp-blksize 1024 tftp://example.com/file
+.fi
+
+See also \fI--tftp-no-options\fP.
+.IP "\-\-tftp-no-options"
+(TFTP) Tells curl not to send TFTP options requests.
+
+This option improves interop with some legacy servers that do not acknowledge
+or properly implement TFTP options. When this option is used \-\-tftp-blksize is
+ignored.
+
+Example:
+.nf
+ curl --tftp-no-options tftp://192.168.0.1/
+.fi
+
+See also \fI--tftp-blksize\fP. Added in 7.48.0.
+.IP "\-z, \-\-time-cond