| # libgcrypt.m4 - Autoconf macros to detect libgcrypt |
| # Copyright (C) 2002, 2003, 2004, 2011, 2014, 2018, 2020 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: 2020-09-27 |
| |
| |
| dnl AM_PATH_LIBGCRYPT([MINIMUM-VERSION, |
| dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) |
| dnl Test for libgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS. |
| dnl MINIMUM-VERSION is a string with the version number optionally prefixed |
| dnl with the API version to also check the API compatibility. Example: |
| dnl a MINIMUM-VERSION of 1:1.2.5 won't pass the test unless the installed |
| dnl version of libgcrypt is at least 1.2.5 *and* the API number is 1. Using |
| dnl this features allows to prevent build against newer versions of libgcrypt |
| dnl with a changed API. |
| dnl |
| dnl If a prefix option is not used, the config script is first |
| dnl searched in $SYSROOT/bin and then along $PATH. If the used |
| dnl config script does not match the host specification the script |
| dnl is added to the gpg_config_script_warn variable. |
| dnl |
| AC_DEFUN([AM_PATH_LIBGCRYPT], |
| [ AC_REQUIRE([AC_CANONICAL_HOST]) |
| AC_ARG_WITH(libgcrypt-prefix, |
| AS_HELP_STRING([--with-libgcrypt-prefix=PFX], |
| [prefix where LIBGCRYPT is installed (optional)]), |
| libgcrypt_config_prefix="$withval", libgcrypt_config_prefix="") |
| if test x"${LIBGCRYPT_CONFIG}" = x ; then |
| if test x"${libgcrypt_config_prefix}" != x ; then |
| LIBGCRYPT_CONFIG="${libgcrypt_config_prefix}/bin/libgcrypt-config" |
| fi |
| fi |
| |
| use_gpgrt_config="" |
| if test x"${LIBGCRYPT_CONFIG}" = x -a x"$GPGRT_CONFIG" != x -a "$GPGRT_CONFIG" != "no"; then |
| if $GPGRT_CONFIG libgcrypt --exists; then |
| LIBGCRYPT_CONFIG="$GPGRT_CONFIG libgcrypt" |
| AC_MSG_NOTICE([Use gpgrt-config as libgcrypt-config]) |
| use_gpgrt_config=yes |
| fi |
| fi |
| if test -z "$use_gpgrt_config"; then |
| if test x"${LIBGCRYPT_CONFIG}" = x ; then |
| case "${SYSROOT}" in |
| /*) |
| if test -x "${SYSROOT}/bin/libgcrypt-config" ; then |
| LIBGCRYPT_CONFIG="${SYSROOT}/bin/libgcrypt-config" |
| fi |
| ;; |
| '') |
| ;; |
| *) |
| AC_MSG_WARN([Ignoring \$SYSROOT as it is not an absolute path.]) |
| ;; |
| esac |
| fi |
| AC_PATH_PROG(LIBGCRYPT_CONFIG, libgcrypt-config, no) |
| fi |
| |
| tmp=ifelse([$1], ,1:1.2.0,$1) |
| if echo "$tmp" | grep ':' >/dev/null 2>/dev/null ; then |
| req_libgcrypt_api=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\1/'` |
| min_libgcrypt_version=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\2/'` |
| else |
| req_libgcrypt_api=0 |
| min_libgcrypt_version="$tmp" |
| fi |
| |
| AC_MSG_CHECKING(for LIBGCRYPT - version >= $min_libgcrypt_version) |
| ok=no |
| if test "$LIBGCRYPT_CONFIG" != "no" ; then |
| req_major=`echo $min_libgcrypt_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'` |
| req_minor=`echo $min_libgcrypt_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'` |
| req_micro=`echo $min_libgcrypt_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'` |
| if test -z "$use_gpgrt_config"; then |
| libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version` |
| else |
| libgcrypt_config_version=`$LIBGCRYPT_CONFIG --modversion` |
| fi |
| major=`echo $libgcrypt_config_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'` |
| minor=`echo $libgcrypt_config_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'` |
| micro=`echo $libgcrypt_config_version | \ |
| sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'` |
| if test "$major" -gt "$req_major"; then |
| ok=yes |
| else |
| if test "$major" -eq "$req_major"; then |
| if test "$minor" -gt "$req_minor"; then |
| ok=yes |
| else |
| if test "$minor" -eq "$req_minor"; then |
| if test "$micro" -ge "$req_micro"; then |
| ok=yes |
| fi |
| fi |
| fi |
| fi |
| fi |
| fi |
| if test $ok = yes; then |
| AC_MSG_RESULT([yes ($libgcrypt_config_version)]) |
| else |
| AC_MSG_RESULT(no) |
| fi |
| if test $ok = yes; then |
| # If we have a recent libgcrypt, we should also check that the |
| # API is compatible |
| if test "$req_libgcrypt_api" -gt 0 ; then |
| if test -z "$use_gpgrt_config"; then |
| tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0` |
| else |
| tmp=`$LIBGCRYPT_CONFIG --variable=api_version 2>/dev/null || echo 0` |
| fi |
| if test "$tmp" -gt 0 ; then |
| AC_MSG_CHECKING([LIBGCRYPT API version]) |
| if test "$req_libgcrypt_api" -eq "$tmp" ; then |
| AC_MSG_RESULT([okay]) |
| else |
| ok=no |
| AC_MSG_RESULT([does not match. want=$req_libgcrypt_api got=$tmp]) |
| fi |
| fi |
| fi |
| fi |
| if test $ok = yes; then |
| LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG --cflags` |
| LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG --libs` |
| ifelse([$2], , :, [$2]) |
| if test -z "$use_gpgrt_config"; then |
| libgcrypt_config_host=`$LIBGCRYPT_CONFIG --host 2>/dev/null || echo none` |
| else |
| libgcrypt_config_host=`$LIBGCRYPT_CONFIG --variable=host 2>/dev/null || echo none` |
| fi |
| if test x"$libgcrypt_config_host" != xnone ; then |
| if test x"$libgcrypt_config_host" != x"$host" ; then |
| AC_MSG_WARN([[ |
| *** |
| *** The config script "$LIBGCRYPT_CONFIG" was |
| *** built for $libgcrypt_config_host and thus may not match the |
| *** used host $host. |
| *** You may want to use the configure option --with-libgcrypt-prefix |
| *** to specify a matching config script or use \$SYSROOT. |
| ***]]) |
| gpg_config_script_warn="$gpg_config_script_warn libgcrypt" |
| fi |
| fi |
| else |
| LIBGCRYPT_CFLAGS="" |
| LIBGCRYPT_LIBS="" |
| ifelse([$3], , :, [$3]) |
| fi |
| AC_SUBST(LIBGCRYPT_CFLAGS) |
| AC_SUBST(LIBGCRYPT_LIBS) |
| ]) |