1# gpg-error.m4 - autoconf macro to detect libgpg-error. 2# Copyright (C) 2002, 2003, 2004, 2011, 2014, 2018, 2020 g10 Code GmbH 3# 4# This file is free software; as a special exception the author gives 5# unlimited permission to copy and/or distribute it, with or without 6# modifications, as long as this notice is preserved. 7# 8# This file is distributed in the hope that it will be useful, but 9# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the 10# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11# 12# Last-changed: 2020-11-17 13 14 15dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION, 16dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) 17dnl 18dnl Test for libgpg-error and define GPG_ERROR_CFLAGS, GPG_ERROR_LIBS, 19dnl GPG_ERROR_MT_CFLAGS, and GPG_ERROR_MT_LIBS. The _MT_ variants are 20dnl used for programs requireing real multi thread support. 21dnl 22dnl If a prefix option is not used, the config script is first 23dnl searched in $SYSROOT/bin and then along $PATH. If the used 24dnl config script does not match the host specification the script 25dnl is added to the gpg_config_script_warn variable. 26dnl 27AC_DEFUN([AM_PATH_GPG_ERROR], 28[ AC_REQUIRE([AC_CANONICAL_HOST]) 29 gpg_error_config_prefix="" 30 dnl --with-libgpg-error-prefix=PFX is the preferred name for this option, 31 dnl since that is consistent with how our three siblings use the directory/ 32 dnl package name in --with-$dir_name-prefix=PFX. 33 AC_ARG_WITH(libgpg-error-prefix, 34 AS_HELP_STRING([--with-libgpg-error-prefix=PFX], 35 [prefix where GPG Error is installed (optional)]), 36 [gpg_error_config_prefix="$withval"]) 37 38 dnl Accept --with-gpg-error-prefix and make it work the same as 39 dnl --with-libgpg-error-prefix above, for backwards compatibility, 40 dnl but do not document this old, inconsistently-named option. 41 AC_ARG_WITH(gpg-error-prefix,, 42 [gpg_error_config_prefix="$withval"]) 43 44 if test x"${GPG_ERROR_CONFIG}" = x ; then 45 if test x"${gpg_error_config_prefix}" != x ; then 46 GPG_ERROR_CONFIG="${gpg_error_config_prefix}/bin/gpg-error-config" 47 else 48 case "${SYSROOT}" in 49 /*) 50 if test -x "${SYSROOT}/bin/gpg-error-config" ; then 51 GPG_ERROR_CONFIG="${SYSROOT}/bin/gpg-error-config" 52 fi 53 ;; 54 '') 55 ;; 56 *) 57 AC_MSG_WARN([Ignoring \$SYSROOT as it is not an absolute path.]) 58 ;; 59 esac 60 fi 61 fi 62 63 AC_PATH_PROG(GPG_ERROR_CONFIG, gpg-error-config, no) 64 min_gpg_error_version=ifelse([$1], ,1.33,$1) 65 ok=no 66 67 if test "$prefix" = NONE ; then 68 prefix_option_expanded=/usr/local 69 else 70 prefix_option_expanded="$prefix" 71 fi 72 if test "$exec_prefix" = NONE ; then 73 exec_prefix_option_expanded=$prefix_option_expanded 74 else 75 exec_prefix_option_expanded=$(prefix=$prefix_option_expanded eval echo $exec_prefix) 76 fi 77 libdir_option_expanded=$(prefix=$prefix_option_expanded exec_prefix=$exec_prefix_option_expanded eval echo $libdir) 78 79 if test -f $libdir_option_expanded/pkgconfig/gpg-error.pc; then 80 gpgrt_libdir=$libdir_option_expanded 81 else 82 if crt1_path=$(${CC:-cc} -print-file-name=crt1.o 2>/dev/null); then 83 if possible_libdir=$(cd ${crt1_path%/*} && pwd 2>/dev/null); then 84 if test -f $possible_libdir/pkgconfig/gpg-error.pc; then 85 gpgrt_libdir=$possible_libdir 86 fi 87 fi 88 fi 89 fi 90 91 if test "$GPG_ERROR_CONFIG" = "no" -a -n "$gpgrt_libdir"; then 92 AC_PATH_PROG(GPGRT_CONFIG, gpgrt-config, no) 93 if test "$GPGRT_CONFIG" = "no"; then 94 unset GPGRT_CONFIG 95 else 96 GPGRT_CONFIG="$GPGRT_CONFIG --libdir=$gpgrt_libdir" 97 if $GPGRT_CONFIG gpg-error >/dev/null 2>&1; then 98 GPG_ERROR_CONFIG="$GPGRT_CONFIG gpg-error" 99 AC_MSG_NOTICE([Use gpgrt-config with $gpgrt_libdir as gpg-error-config]) 100 gpg_error_config_version=`$GPG_ERROR_CONFIG --modversion` 101 else 102 unset GPGRT_CONFIG 103 fi 104 fi 105 else 106 gpg_error_config_version=`$GPG_ERROR_CONFIG --version` 107 fi 108 if test "$GPG_ERROR_CONFIG" != "no"; then 109 req_major=`echo $min_gpg_error_version | \ 110 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'` 111 req_minor=`echo $min_gpg_error_version | \ 112 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\2/'` 113 major=`echo $gpg_error_config_version | \ 114 sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'` 115 minor=`echo $gpg_error_config_version | \ 116 sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'` 117 if test "$major" -gt "$req_major"; then 118 ok=yes 119 else 120 if test "$major" -eq "$req_major"; then 121 if test "$minor" -ge "$req_minor"; then 122 ok=yes 123 fi 124 fi 125 fi 126 if test -z "$GPGRT_CONFIG" -a -n "$gpgrt_libdir"; then 127 if test "$major" -gt 1 -o "$major" -eq 1 -a "$minor" -ge 33; then 128 AC_PATH_PROG(GPGRT_CONFIG, gpgrt-config, no) 129 if test "$GPGRT_CONFIG" = "no"; then 130 unset GPGRT_CONFIG 131 else 132 GPGRT_CONFIG="$GPGRT_CONFIG --libdir=$gpgrt_libdir" 133 if $GPGRT_CONFIG gpg-error >/dev/null 2>&1; then 134 GPG_ERROR_CONFIG="$GPGRT_CONFIG gpg-error" 135 AC_MSG_NOTICE([Use gpgrt-config with $gpgrt_libdir as gpg-error-config]) 136 else 137 unset GPGRT_CONFIG 138 fi 139 fi 140 fi 141 fi 142 fi 143 AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version) 144 if test $ok = yes; then 145 GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG --cflags` 146 GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG --libs` 147 if test -z "$GPGRT_CONFIG"; then 148 GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --mt --cflags 2>/dev/null` 149 GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --mt --libs 2>/dev/null` 150 else 151 GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --variable=mtcflags 2>/dev/null` 152 GPG_ERROR_MT_CFLAGS="$GPG_ERROR_CFLAGS${GPG_ERROR_CFLAGS:+ }$GPG_ERROR_MT_CFLAGS" 153 GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --variable=mtlibs 2>/dev/null` 154 GPG_ERROR_MT_LIBS="$GPG_ERROR_LIBS${GPG_ERROR_LIBS:+ }$GPG_ERROR_MT_LIBS" 155 fi 156 AC_MSG_RESULT([yes ($gpg_error_config_version)]) 157 ifelse([$2], , :, [$2]) 158 if test -z "$GPGRT_CONFIG"; then 159 gpg_error_config_host=`$GPG_ERROR_CONFIG --host 2>/dev/null || echo none` 160 else 161 gpg_error_config_host=`$GPG_ERROR_CONFIG --variable=host 2>/dev/null || echo none` 162 fi 163 if test x"$gpg_error_config_host" != xnone ; then 164 if test x"$gpg_error_config_host" != x"$host" ; then 165 AC_MSG_WARN([[ 166*** 167*** The config script "$GPG_ERROR_CONFIG" was 168*** built for $gpg_error_config_host and thus may not match the 169*** used host $host. 170*** You may want to use the configure option --with-libgpg-error-prefix 171*** to specify a matching config script or use \$SYSROOT. 172***]]) 173 gpg_config_script_warn="$gpg_config_script_warn libgpg-error" 174 fi 175 fi 176 else 177 GPG_ERROR_CFLAGS="" 178 GPG_ERROR_LIBS="" 179 GPG_ERROR_MT_CFLAGS="" 180 GPG_ERROR_MT_LIBS="" 181 AC_MSG_RESULT(no) 182 ifelse([$3], , :, [$3]) 183 fi 184 AC_SUBST(GPG_ERROR_CFLAGS) 185 AC_SUBST(GPG_ERROR_LIBS) 186 AC_SUBST(GPG_ERROR_MT_CFLAGS) 187 AC_SUBST(GPG_ERROR_MT_LIBS) 188]) 189