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gpg-error.m4
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# gpg-error.m4 - autoconf macro to detect libgpg-error. # Copyright (C) 2002, 2003, 2004, 2011, 2014, 2018, 2020, 2021 # g10 Code GmbH # # This file is free software; as a special exception the author gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # # This file 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. # # Last-changed: 2021-02-16 dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION, dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) dnl dnl Test for libgpg-error and define GPG_ERROR_CFLAGS, GPG_ERROR_LIBS, dnl GPG_ERROR_MT_CFLAGS, and GPG_ERROR_MT_LIBS. The _MT_ variants are dnl used for programs requireing real multi thread support. dnl dnl If a prefix option is not used, the config script is first dnl searched in $SYSROOT/bin and then along $PATH. If the used dnl config script does not match the host specification the script dnl is added to the gpg_config_script_warn variable. dnl AC_DEFUN([AM_PATH_GPG_ERROR], [ AC_REQUIRE([AC_CANONICAL_HOST]) gpg_error_config_prefix="" dnl --with-libgpg-error-prefix=PFX is the preferred name for this option, dnl since that is consistent with how our three siblings use the directory/ dnl package name in --with-$dir_name-prefix=PFX. AC_ARG_WITH(libgpg-error-prefix, AS_HELP_STRING([--with-libgpg-error-prefix=PFX], [prefix where GPG Error is installed (optional)]), [gpg_error_config_prefix="$withval"]) dnl Accept --with-gpg-error-prefix and make it work the same as dnl --with-libgpg-error-prefix above, for backwards compatibility, dnl but do not document this old, inconsistently-named option. AC_ARG_WITH(gpg-error-prefix,, [gpg_error_config_prefix="$withval"]) if test x"${GPG_ERROR_CONFIG}" = x ; then if test x"${gpg_error_config_prefix}" != x ; then GPG_ERROR_CONFIG="${gpg_error_config_prefix}/bin/gpg-error-config" else case "${SYSROOT}" in /*) if test -x "${SYSROOT}/bin/gpg-error-config" ; then GPG_ERROR_CONFIG="${SYSROOT}/bin/gpg-error-config" fi ;; '') ;; *) AC_MSG_WARN([Ignoring \$SYSROOT as it is not an absolute path.]) ;; esac fi fi AC_PATH_PROG(GPG_ERROR_CONFIG, gpg-error-config, no) min_gpg_error_version=ifelse([$1], ,1.33,$1) ok=no AC_PATH_PROG(GPGRT_CONFIG, gpgrt-config, no) if test "$GPGRT_CONFIG" != "no"; then # Determine gpgrt_libdir # # Get the prefix of gpgrt-config assuming it's something like: # <PREFIX>/bin/gpgrt-config gpgrt_prefix=${GPGRT_CONFIG%/*/*} possible_libdir1=${gpgrt_prefix}/lib # Determine by using system libdir-format with CC, it's like: # Normal style: /usr/lib # GNU cross style: /usr/<triplet>/lib # Debian style: /usr/lib/<multiarch-name> # Fedora/openSUSE style: /usr/lib, /usr/lib32 or /usr/lib64 # It is assumed that CC is specified to the one of host on cross build. if libdir_candidates=$(${CC:-cc} -print-search-dirs | \ sed -n -e "/^libraries/{s/libraries: =//;s/:/\n/gp}"); then # From the output of -print-search-dirs, select valid pkgconfig dirs. libdir_candidates=$(for dir in $libdir_candidates; do if p=$(cd $dir 2>/dev/null && pwd); then test -d "$p/pkgconfig" && echo $p; fi done) for possible_libdir0 in $libdir_candidates; do # possible_libdir0: # Fallback candidate, the one of system-installed (by $CC) # (/usr/<triplet>/lib, /usr/lib/<multiarch-name> or /usr/lib32) # possible_libdir1: # Another candidate, user-locally-installed # (<gpgrt_prefix>/lib) # possible_libdir2 # Most preferred # (<gpgrt_prefix>/<triplet>/lib, # <gpgrt_prefix>/lib/<multiarch-name> or <gpgrt_prefix>/lib32) if test "${possible_libdir0##*/}" = "lib"; then possible_prefix0=${possible_libdir0%/lib} possible_prefix0_triplet=${possible_prefix0##*/} if test -z "$possible_prefix0_triplet"; then continue fi possible_libdir2=${gpgrt_prefix}/$possible_prefix0_triplet/lib else possible_prefix0=${possible_libdir0%%/lib*} possible_libdir2=${gpgrt_prefix}${possible_libdir0#$possible_prefix0} fi if test -f ${possible_libdir2}/pkgconfig/gpg-error.pc; then gpgrt_libdir=${possible_libdir2} elif test -f ${possible_libdir1}/pkgconfig/gpg-error.pc; then gpgrt_libdir=${possible_libdir1} elif test -f ${possible_libdir0}/pkgconfig/gpg-error.pc; then gpgrt_libdir=${possible_libdir0} fi if test -n "$gpgrt_libdir"; then break; fi done else # When we cannot determine system libdir-format, use this: gpgrt_libdir=${possible_libdir1} fi else unset GPGRT_CONFIG fi if test -n "$gpgrt_libdir"; then GPGRT_CONFIG="$GPGRT_CONFIG --libdir=$gpgrt_libdir" if $GPGRT_CONFIG gpg-error >/dev/null 2>&1; then GPG_ERROR_CONFIG="$GPGRT_CONFIG gpg-error" AC_MSG_NOTICE([Use gpgrt-config with $gpgrt_libdir as gpg-error-config]) gpg_error_config_version=`$GPG_ERROR_CONFIG --modversion` else unset GPGRT_CONFIG fi elif test "$GPG_ERROR_CONFIG" != "no"; then gpg_error_config_version=`$GPG_ERROR_CONFIG --version` fi if test "$GPG_ERROR_CONFIG" != "no"; then req_major=`echo $min_gpg_error_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'` req_minor=`echo $min_gpg_error_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\2/'` major=`echo $gpg_error_config_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'` minor=`echo $gpg_error_config_version | \ sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'` if test "$major" -gt "$req_major"; then ok=yes else if test "$major" -eq "$req_major"; then if test "$minor" -ge "$req_minor"; then ok=yes fi fi fi fi AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version) if test $ok = yes; then GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG --cflags` GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG --libs` if test -z "$GPGRT_CONFIG"; then GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --mt --cflags 2>/dev/null` GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --mt --libs 2>/dev/null` else GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --variable=mtcflags 2>/dev/null` GPG_ERROR_MT_CFLAGS="$GPG_ERROR_CFLAGS${GPG_ERROR_CFLAGS:+ }$GPG_ERROR_MT_CFLAGS" GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --variable=mtlibs 2>/dev/null` GPG_ERROR_MT_LIBS="$GPG_ERROR_LIBS${GPG_ERROR_LIBS:+ }$GPG_ERROR_MT_LIBS" fi AC_MSG_RESULT([yes ($gpg_error_config_version)]) ifelse([$2], , :, [$2]) if test -z "$GPGRT_CONFIG"; then gpg_error_config_host=`$GPG_ERROR_CONFIG --host 2>/dev/null || echo none` else gpg_error_config_host=`$GPG_ERROR_CONFIG --variable=host 2>/dev/null || echo none` fi if test x"$gpg_error_config_host" != xnone ; then if test x"$gpg_error_config_host" != x"$host" ; then AC_MSG_WARN([[ *** *** The config script "$GPG_ERROR_CONFIG" was *** built for $gpg_error_config_host and thus may not match the *** used host $host. *** You may want to use the configure option --with-libgpg-error-prefix *** to specify a matching config script or use \$SYSROOT. ***]]) gpg_config_script_warn="$gpg_config_script_warn libgpg-error" fi fi else GPG_ERROR_CFLAGS="" GPG_ERROR_LIBS="" GPG_ERROR_MT_CFLAGS="" GPG_ERROR_MT_LIBS="" AC_MSG_RESULT(no) ifelse([$3], , :, [$3]) fi AC_SUBST(GPG_ERROR_CFLAGS) AC_SUBST(GPG_ERROR_LIBS) AC_SUBST(GPG_ERROR_MT_CFLAGS) AC_SUBST(GPG_ERROR_MT_LIBS) ])