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curl-rustls.m4
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <[email protected]>, 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.
#
# SPDX-License-Identifier: curl
#
#***************************************************************************
AC_DEFUN([CURL_WITH_RUSTLS], [
dnl ----------------------------------------------------
dnl check for Rustls
dnl ----------------------------------------------------
if test "x$OPT_RUSTLS" != xno; then
ssl_msg=
dnl backup the pre-ssl variables
CLEANLDFLAGS="$LDFLAGS"
CLEANLDFLAGSPC="$LDFLAGSPC"
CLEANCPPFLAGS="$CPPFLAGS"
## NEW CODE
dnl use pkg-config unless we have been given a path
dnl even then, try pkg-config first
case "$OPT_RUSTLS" in
yes)
dnl --with-rustls (without path) used
PKGTEST="yes"
PREFIX_RUSTLS=
;;
*)
dnl check the provided --with-rustls path
PKGTEST="no"
PREFIX_RUSTLS=$OPT_RUSTLS
dnl Try pkg-config even when cross-compiling. Since we
dnl specify PKG_CONFIG_LIBDIR we are only looking where
dnl the user told us to look
RUSTLS_PCDIR="$PREFIX_RUSTLS/lib/pkgconfig"
if test -f "$RUSTLS_PCDIR/rustls.pc"; then
AC_MSG_NOTICE([PKG_CONFIG_LIBDIR will be set to "$RUSTLS_PCDIR"])
PKGTEST="yes"
fi
if test "$PKGTEST" != "yes"; then
# try lib64 instead
RUSTLS_PCDIR="$PREFIX_RUSTLS/lib64/pkgconfig"
if test -f "$RUSTLS_PCDIR/rustls.pc"; then
AC_MSG_NOTICE([PKG_CONFIG_LIBDIR will be set to "$RUSTLS_PCDIR"])
PKGTEST="yes"
fi
fi
if test "$PKGTEST" != "yes"; then
dnl pkg-config came up empty, use what we got
dnl via --with-rustls
addld=-L$PREFIX_RUSTLS/lib$libsuff
addcflags=-I$PREFIX_RUSTLS/include
LDFLAGS="$LDFLAGS $addld"
LDFLAGSPC="$LDFLAGSPC $addld"
if test "$addcflags" != "-I/usr/include"; then
CPPFLAGS="$CPPFLAGS $addcflags"
fi
case $host in
*-apple-*)
RUSTLS_LDFLAGS="-framework Security -framework Foundation"
;;
*)
RUSTLS_LDFLAGS="-lpthread -ldl -lm"
;;
esac
AC_CHECK_LIB(rustls, rustls_connection_read,
[
AC_DEFINE(USE_RUSTLS, 1, [if Rustls is enabled])
RUSTLS_ENABLED=1
USE_RUSTLS="yes"
ssl_msg="rustls"
test rustls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
],
AC_MSG_ERROR([--with-rustls was specified but could not find Rustls.]),
$RUSTLS_LDFLAGS)
LIB_RUSTLS="$PREFIX_RUSTLS/lib$libsuff"
if test "$PREFIX_RUSTLS" != "/usr" ; then
SSL_LDFLAGS="-L$LIB_RUSTLS $RUSTLS_LDFLAGS"
SSL_CPPFLAGS="-I$PREFIX_RUSTLS/include"
fi
fi
;;
esac
link_pkgconfig=''
if test "$PKGTEST" = "yes"; then
CURL_CHECK_PKGCONFIG(rustls, [$RUSTLS_PCDIR])
if test "$PKGCONFIG" != "no" ; then
SSL_LIBS=`CURL_EXPORT_PCDIR([$RUSTLS_PCDIR]) dnl
$PKGCONFIG --libs-only-l --libs-only-other rustls 2>/dev/null`
SSL_LDFLAGS=`CURL_EXPORT_PCDIR([$RUSTLS_PCDIR]) dnl
$PKGCONFIG --libs-only-L rustls 2>/dev/null`
SSL_CPPFLAGS=`CURL_EXPORT_PCDIR([$RUSTLS_PCDIR]) dnl
$PKGCONFIG --cflags-only-I rustls 2>/dev/null`
AC_MSG_NOTICE([pkg-config: SSL_LIBS: "$SSL_LIBS"])
AC_MSG_NOTICE([pkg-config: SSL_LDFLAGS: "$SSL_LDFLAGS"])
AC_MSG_NOTICE([pkg-config: SSL_CPPFLAGS: "$SSL_CPPFLAGS"])
LIB_RUSTLS=`echo $SSL_LDFLAGS | sed -e 's/^-L//'`
dnl use the values pkg-config reported. This is here
dnl instead of below with CPPFLAGS and LDFLAGS because we only
dnl learn about this via pkg-config. If we only have
dnl the argument to --with-rustls we don't know what
dnl additional libs may be necessary. Hope that we
dnl don't need any.
LIBS="$SSL_LIBS $LIBS"
link_pkgconfig=1
ssl_msg="rustls"
AC_DEFINE(USE_RUSTLS, 1, [if Rustls is enabled])
USE_RUSTLS="yes"
RUSTLS_ENABLED=1
test rustls != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes
else
AC_MSG_ERROR([pkg-config: Could not find Rustls])
fi
else
dnl we did not use pkg-config, so we need to add the
dnl Rustls lib to LIBS
LIBS="-lrustls -lpthread -ldl -lm $LIBS"
fi
dnl finally, set flags to use this TLS backend
CPPFLAGS="$CLEANCPPFLAGS $SSL_CPPFLAGS"
LDFLAGS="$CLEANLDFLAGS $SSL_LDFLAGS"
LDFLAGSPC="$CLEANLDFLAGSPC $SSL_LDFLAGS"
if test "x$USE_RUSTLS" = "xyes"; then
AC_MSG_NOTICE([detected Rustls])
check_for_ca_bundle=1
if test -n "$LIB_RUSTLS"; then
dnl when shared libs were found in a path that the run-time
dnl linker does not search through, we need to add it to
dnl CURL_LIBRARY_PATH so that further configure tests do not
dnl fail due to this
if test "x$cross_compiling" != "xyes"; then
CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$LIB_RUSTLS"
export CURL_LIBRARY_PATH
AC_MSG_NOTICE([Added $LIB_RUSTLS to CURL_LIBRARY_PATH])
fi
fi
if test -n "$link_pkgconfig"; then
LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE rustls"
fi
fi
test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg"
if test X"$OPT_RUSTLS" != Xno &&
test "$RUSTLS_ENABLED" != "1"; then
AC_MSG_NOTICE([OPT_RUSTLS: $OPT_RUSTLS])
AC_MSG_NOTICE([RUSTLS_ENABLED: $RUSTLS_ENABLED])
AC_MSG_ERROR([--with-rustls was given but Rustls could not be detected])
fi
fi
])
RUSTLS_ENABLED