# gpgrt.m4 - autoconf macro to detect libgpgrt
# Copyright (C) 2002, 2003, 2004, 2011, 2014, 2017 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.
# SPDX-License-Identifier: FSFULLR
#
# Last-changed: 2014-10-02
# Note: This is a duplicate of gpg-error.m4 with uses the future name
# of libgpg-error to prepare for a smooth migration in some distant
# time.
dnl AM_PATH_GPGRT([MINIMUM-VERSION,
dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
dnl
dnl Test for libgpgrt and define GPGRT_CFLAGS, GPGRT_LIBS,
dnl GPG_ERROR_MT_CFLAGS, and GPG_ERROR_MT_LIBS. The _MT_ variants are
dnl used for programs requiring 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 $PATH. If the used
dnl config script does not match the host specification the script
dnl is added to the gpg_config_script_warn variable.
dnl
AC_DEFUN([AM_PATH_GPGRT],
[ AC_REQUIRE([AC_CANONICAL_HOST])
gpgrt_config_prefix=""
dnl --with-libgpg-error-prefix=PFX is the preferred name for this option,
dnl since that is consistent with how our three siblings use the directory/
dnl package name in --with-$dir_name-prefix=PFX.
AC_ARG_WITH(libgpg-error-prefix,
AC_HELP_STRING([--with-libgpg-error-prefix=PFX],
[prefix where GPG Error is installed (optional)]),
[gpgrt_config_prefix="$withval"])
dnl Accept --with-gpg-error-prefix and make it work the same as
dnl --with-libgpg-error-prefix above, for backwards compatibility,
dnl but do not document this old, inconsistently-named option.
AC_ARG_WITH(gpg-error-prefix,,
[gpgrt_config_prefix="$withval"])
if test x"${GPGRT_CONFIG}" = x ; then
if test x"${gpgrt_config_prefix}" != x ; then
GPGRT_CONFIG="${gpgrt_config_prefix}/bin/gpg-error-config"
else
case "${SYSROOT}" in
/*)
if test -x "${SYSROOT}/bin/gpg-error-config" ; then
GPGRT_CONFIG="${SYSROOT}/bin/gpg-error-config"
fi
;;
'')
;;
*)
AC_MSG_WARN([Ignoring \$SYSROOT as it is not an absolute path.])
;;
esac
fi
fi
AC_PATH_PROG(GPGRT_CONFIG, gpg-error-config, no)
min_gpgrt_version=ifelse([$1], ,0.0,$1)
AC_MSG_CHECKING(for GPG Error - version >= $min_gpgrt_version)
ok=no
if test "$GPGRT_CONFIG" != "no" \
&& test -f "$GPGRT_CONFIG" ; then
req_major=`echo $min_gpgrt_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
req_minor=`echo $min_gpgrt_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
gpgrt_config_version=`$GPGRT_CONFIG $gpgrt_config_args --version`
major=`echo $gpgrt_config_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
minor=`echo $gpgrt_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
if test $ok = yes; then
GPGRT_CFLAGS=`$GPGRT_CONFIG $gpgrt_config_args --cflags`
GPGRT_LIBS=`$GPGRT_CONFIG $gpgrt_config_args --libs`
GPGRT_MT_CFLAGS=`$GPGRT_CONFIG $gpgrt_config_args --mt --cflags 2>/dev/null`
GPGRT_MT_LIBS=`$GPGRT_CONFIG $gpgrt_config_args --mt --libs 2>/dev/null`
AC_MSG_RESULT([yes ($gpgrt_config_version)])
ifelse([$2], , :, [$2])
gpgrt_config_host=`$GPGRT_CONFIG $gpgrt_config_args --host 2>/dev/null || echo none`
if test x"$gpgrt_config_host" != xnone ; then
if test x"$gpgrt_config_host" != x"$host" ; then
AC_MSG_WARN([[
***
*** The config script $GPGRT_CONFIG was
*** built for $gpgrt_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
GPGRT_CFLAGS=""
GPGRT_LIBS=""
GPGRT_MT_CFLAGS=""
GPGRT_MT_LIBS=""
AC_MSG_RESULT(no)
ifelse([$3], , :, [$3])
fi
AC_SUBST(GPGRT_CFLAGS)
AC_SUBST(GPGRT_LIBS)
AC_SUBST(GPGRT_MT_CFLAGS)
AC_SUBST(GPGRT_MT_LIBS)
])
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