e244d50064
`libcurl.pc` `Libs.private` (since 8.11.0, and in `Libs` before 7.20.0) and `curl-config` `--static-libs` (since 7.17.1, and in `Libs` between 7.7.2-7.25.0). This included all flags inherited from the environment, in addition to those coming from dependency detections. To avoid spilling all linker flags inherited from the environment to the libcurl config files, this patch omits them all, except `-L`, `-F`, `--library-path=` and `-framework` options, which are still passed. The rationale for the exceptions is that `LIBS` is passed as-is, and `LDFLAGS`, `LIBS` are the canonical way to pass custom libs options to a build. `LIBS` may not work without a matching custom libpath. This brings autotools behaviour closer to cmake, and `curl-config` closer to `libcurl.pc`. Follow-up to9f56bb608e#14681 Follow-up to4c8adc8feeReported-by: Peter Marko Fixes #15533 Closes #15550
172 lines
5.4 KiB
Plaintext
172 lines
5.4 KiB
Plaintext
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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#***************************************************************************
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dnl ----------------------------------------------------
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dnl check for GnuTLS
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dnl ----------------------------------------------------
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AC_DEFUN([CURL_WITH_GNUTLS], [
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if test "x$OPT_GNUTLS" != xno; then
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ssl_msg=
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if test X"$OPT_GNUTLS" != Xno; then
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addld=""
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addlib=""
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gtlslib=""
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version=""
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addcflags=""
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if test "x$OPT_GNUTLS" = "xyes"; then
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dnl this is with no particular path given
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CURL_CHECK_PKGCONFIG(gnutls)
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if test "$PKGCONFIG" != "no" ; then
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addlib=`$PKGCONFIG --libs-only-l gnutls`
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addld=`$PKGCONFIG --libs-only-L gnutls`
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addcflags=`$PKGCONFIG --cflags-only-I gnutls`
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version=`$PKGCONFIG --modversion gnutls`
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gtlslib=`echo $addld | $SED -e 's/^-L//'`
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else
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dnl without pkg-config, we try libgnutls-config as that was how it
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dnl used to be done
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check=`libgnutls-config --version 2>/dev/null`
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if test -n "$check"; then
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addlib=`libgnutls-config --libs`
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addcflags=`libgnutls-config --cflags`
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version=`libgnutls-config --version`
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gtlslib=`libgnutls-config --prefix`/lib$libsuff
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fi
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fi
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else
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dnl this is with a given path, first check if there's a libgnutls-config
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dnl there and if not, make an educated guess
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cfg=$OPT_GNUTLS/bin/libgnutls-config
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check=`$cfg --version 2>/dev/null`
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if test -n "$check"; then
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addlib=`$cfg --libs`
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addcflags=`$cfg --cflags`
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version=`$cfg --version`
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gtlslib=`$cfg --prefix`/lib$libsuff
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else
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dnl without pkg-config and libgnutls-config, we guess a lot!
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addlib=-lgnutls
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addld=-L$OPT_GNUTLS/lib$libsuff
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addcflags=-I$OPT_GNUTLS/include
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version="" # we just don't know
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gtlslib=$OPT_GNUTLS/lib$libsuff
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fi
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fi
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if test -z "$version"; then
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dnl lots of efforts, still no go
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version="unknown"
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fi
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if test -n "$addlib"; then
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CLEANLIBS="$LIBS"
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CLEANCPPFLAGS="$CPPFLAGS"
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CLEANLDFLAGS="$LDFLAGS"
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CLEANLDFLAGSPC="$LDFLAGSPC"
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LIBS="$addlib $LIBS"
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LDFLAGS="$LDFLAGS $addld"
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LDFLAGSPC="$LDFLAGSPC $addld"
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if test "$addcflags" != "-I/usr/include"; then
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CPPFLAGS="$CPPFLAGS $addcflags"
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fi
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dnl this function is selected since it was introduced in 3.1.10
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AC_CHECK_LIB(gnutls, gnutls_x509_crt_get_dn2,
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[
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AC_DEFINE(USE_GNUTLS, 1, [if GnuTLS is enabled])
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AC_SUBST(USE_GNUTLS, [1])
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GNUTLS_ENABLED=1
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USE_GNUTLS="yes"
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ssl_msg="GnuTLS"
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QUIC_ENABLED=yes
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test gnutls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
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],
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[
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LIBS="$CLEANLIBS"
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CPPFLAGS="$CLEANCPPFLAGS"
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])
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if test "x$USE_GNUTLS" = "xyes"; then
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AC_MSG_NOTICE([detected GnuTLS version $version])
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check_for_ca_bundle=1
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if test -n "$gtlslib"; then
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dnl when shared libs were found in a path that the run-time
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dnl linker doesn't search through, we need to add it to
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dnl CURL_LIBRARY_PATH to prevent further configure tests to fail
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dnl due to this
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if test "x$cross_compiling" != "xyes"; then
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CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$gtlslib"
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export CURL_LIBRARY_PATH
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AC_MSG_NOTICE([Added $gtlslib to CURL_LIBRARY_PATH])
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fi
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fi
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LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE gnutls nettle"
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fi
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fi
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fi dnl GNUTLS not disabled
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test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
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fi
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dnl ---
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dnl Check which crypto backend GnuTLS uses
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dnl ---
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if test "$GNUTLS_ENABLED" = "1"; then
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USE_GNUTLS_NETTLE=
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# First check if we can detect either crypto library via transitive linking
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AC_CHECK_LIB(gnutls, nettle_MD5Init, [ USE_GNUTLS_NETTLE=1 ])
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# If not, try linking directly to both of them to see if they are available
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if test "$USE_GNUTLS_NETTLE" = ""; then
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AC_CHECK_LIB(nettle, nettle_MD5Init, [ USE_GNUTLS_NETTLE=1 ])
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fi
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if test "$USE_GNUTLS_NETTLE" = ""; then
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AC_MSG_ERROR([GnuTLS found, but nettle was not found])
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fi
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LIBS="-lnettle $LIBS"
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fi
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dnl ---
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dnl We require GnuTLS with SRP support.
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dnl ---
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if test "$GNUTLS_ENABLED" = "1"; then
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AC_CHECK_LIB(gnutls, gnutls_srp_verifier,
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[
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AC_DEFINE(HAVE_GNUTLS_SRP, 1, [if you have the function gnutls_srp_verifier])
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AC_SUBST(HAVE_GNUTLS_SRP, [1])
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])
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fi
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])
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