| dnl Autoconf macros for libgcrypt |
| dnl Copyright (C) 2002, 2004 Free Software Foundation, Inc. |
| dnl |
| dnl This file is free software; as a special exception the author gives |
| dnl unlimited permission to copy and/or distribute it, with or without |
| dnl modifications, as long as this notice is preserved. |
| dnl |
| dnl This file is distributed in the hope that it will be useful, but |
| dnl WITHOUT ANY WARRANTY, to the extent permitted by law; without even the |
| dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| |
| |
| 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 MINIMUN-VERSION is a string with the version number optionalliy prefixed |
| dnl with the API version to also check the API compatibility. Example: |
| dnl a MINIMUN-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 |
| AC_DEFUN([AM_PATH_LIBGCRYPT], |
| [ AC_ARG_WITH(libgcrypt-prefix, |
| AC_HELP_STRING([--with-libgcrypt-prefix=PFX], |
| [prefix where LIBGCRYPT is installed (optional)]), |
| libgcrypt_config_prefix="$withval", libgcrypt_config_prefix="") |
| if test x$libgcrypt_config_prefix != x ; then |
| if test x${LIBGCRYPT_CONFIG+set} != xset ; then |
| LIBGCRYPT_CONFIG=$libgcrypt_config_prefix/bin/libgcrypt-config |
| fi |
| fi |
| |
| AC_PATH_PROG(LIBGCRYPT_CONFIG, libgcrypt-config, no) |
| 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/'` |
| libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version` |
| 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 |
| tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0` |
| if test "$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]) |
| else |
| LIBGCRYPT_CFLAGS="" |
| LIBGCRYPT_LIBS="" |
| ifelse([$3], , :, [$3]) |
| fi |
| AC_SUBST(LIBGCRYPT_CFLAGS) |
| AC_SUBST(LIBGCRYPT_LIBS) |
| ]) |