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dnl Autoconf macros for libmcrypt
dnl $id$
# This script detects libmcrypt version and defines
# LIBMCRYPT_CFLAGS, LIBMCRYPT_LIBS
# and LIBMCRYPT24 or LIBMCRYPT22 depending on libmcrypt version
# found.
# Modified for LIBMCRYPT -- nmav
# Configure paths for LIBGCRYPT
# Shamelessly stolen from the one of XDELTA by Owen Taylor
# Werner Koch 99-12-09
dnl AM_PATH_LIBMCRYPT([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
dnl Test for libmcrypt, and define LIBMCRYPT_CFLAGS and LIBMCRYPT_LIBS
dnl
AC_DEFUN(AM_PATH_LIBMCRYPT,
[dnl
dnl Get the cflags and libraries from the libmcrypt-config script
dnl
AC_ARG_WITH(libmcrypt-prefix,
[ --with-libmcrypt-prefix=PFX Prefix where libmcrypt is installed (optional)],
libmcrypt_config_prefix="$withval", libmcrypt_config_prefix="")
if test x$libmcrypt_config_prefix != x ; then
libmcrypt_config_args="$libmcrypt_config_args --prefix=$libmcrypt_config_prefix"
if test x${LIBMCRYPT_CONFIG+set} != xset ; then
LIBMCRYPT_CONFIG=$libmcrypt_config_prefix/bin/libmcrypt-config
fi
fi
AC_PATH_PROG(LIBMCRYPT_CONFIG, libmcrypt-config, no)
min_libmcrypt_version=ifelse([$1], ,2.4.0,$1)
AC_MSG_CHECKING(for libmcrypt - version >= $min_libmcrypt_version)
no_libmcrypt=""
if test "$LIBMCRYPT_CONFIG" = "no" ; then
dnl libmcrypt-config was not found (pre 2.4.11 versions)
dnl Try to detect libmcrypt version
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mcrypt.h>
int
main ()
{
#if MCRYPT_API_VERSION <= 19991015
/* version 2.2 */
return 0;
#else
/* version 2.4 */
return 1;
#endif /* 19991015 */
}
], libmcrypt_config_version="2.2.0"
if test x$libmcrypt_config_prefix != x ; then
TTLIBS="-L${libmcrypt_config_prefix}/libs"
TTINCLUDE="-I${libmcrypt_config_prefix}/include"
fi
LIBMCRYPT_CFLAGS="${TTINCLUDE}"
LIBMCRYPT_LIBS="${TTLIBS} -lmcrypt"
AC_DEFINE(LIBMCRYPT22, 1, [have libmcrypt 2.2])
, libmcrypt_config_version="2.4.0"
if test x$libmcrypt_config_prefix != x ; then
TTLIBS="-L${libmcrypt_config_prefix}/libs"
TTINCLUDE="-I${libmcrypt_config_prefix}/include"
fi
LIBMCRYPT_CFLAGS="${TTINCLUDE}"
LIBMCRYPT_LIBS="${TTLIBS} -lmcrypt -lltdl ${LIBADD_DL}"
AC_DEFINE(LIBMCRYPT24, 1, [have libmcrypt 2.4]))
else
dnl libmcrypt-config was found
LIBMCRYPT_CFLAGS=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --cflags`
LIBMCRYPT_LIBS=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --libs`
libmcrypt_config_version=`$LIBMCRYPT_CONFIG $libmcrypt_config_args --version`
AC_DEFINE(LIBMCRYPT24, 1, [have libmcrypt 2.4])
fi
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $LIBMCRYPT_CFLAGS"
LIBS="$LIBS $LIBMCRYPT_LIBS"
dnl
dnl Now check if the installed libmcrypt is sufficiently new. Also sanity
dnl checks the results of libmcrypt-config to some extent
dnl
rm -f conf.libmcrypttest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mcrypt.h>
#define TWO "2.2"
int
main ()
{
#if MCRYPT_API_VERSION <= 20010201
#if MCRYPT_API_VERSION <= 19991015
/* version 2.2 */
int x = mcrypt_get_key_size(MCRYPT_TWOFISH_128);
system ("touch conf.libmcrypttest");
if( strncmp( TWO, "$min_libmcrypt_version", strlen(TWO))) {
printf("\n*** Requested libmcrypt %s, but LIBMCRYPT (%s)\n",
"$min_libmcrypt_version", TWO );
printf("*** was found!\n");
return 1;
}
return 0;
#else
/* version 2.4 before 11 */
MCRYPT td = mcrypt_module_open("twofish", NULL, "cbc", NULL);
system ("touch conf.libmcrypttest");
mcrypt_module_close(td);
return 0;
#endif /* 19991015 */
#else
system ("touch conf.libmcrypttest");
if( strcmp( mcrypt_check_version(NULL), "$libmcrypt_config_version" ) )
{
printf("\n*** 'libmcrypt-config --version' returned %s, but LIBMCRYPT (%s)\n",
"$libmcrypt_config_version", mcrypt_check_version(NULL) );
printf("*** was found! If libmcrypt-config was correct, then it is best\n");
printf("*** to remove the old version of LIBMCRYPT. You may also be able to fix the error\n");
printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
printf("*** required on your system.\n");
printf("*** If libmcrypt-config was wrong, set the environment variable LIBMCRYPT_CONFIG\n");
printf("*** to point to the correct copy of libmcrypt-config, and remove the file config.cache\n");
printf("*** before re-running configure\n");
}
else if ( strcmp(mcrypt_check_version(NULL), LIBMCRYPT_VERSION ) )
{
printf("\n*** LIBMCRYPT header file (version %s) does not match\n", LIBMCRYPT_VERSION);
printf("*** library (version %s)\n", mcrypt_check_version(NULL) );
}
else
{
if ( mcrypt_check_version( "$min_libmcrypt_version" ) )
{
return 0;
}
else
{
printf("no\n*** An old version of LIBMCRYPT (%s) was found.\n",
mcrypt_check_version(NULL) );
printf("*** You need a version of LIBMCRYPT newer than %s. The latest version of\n",
"$min_libmcrypt_version" );
printf("*** LIBMCRYPT is always available from ftp://mcrypt.hellug.gr/pub/mcrypt.\n");
printf("*** \n");
printf("*** If you have already installed a sufficiently new version, this error\n");
printf("*** probably means that the wrong copy of the libmcrypt-config shell script is\n");
printf("*** being found. The easiest way to fix this is to remove the old version\n");
printf("*** of LIBMCRYPT, but you can also set the LIBMCRYPT_CONFIG environment to point to the\n");
printf("*** correct copy of libmcrypt-config. (In this case, you will have to\n");
printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
printf("*** so that the correct libraries are found at run-time))\n");
}
}
return 1;
#endif /* 20010201 */
}
],, no_libmcrypt=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
if test "x$no_libmcrypt" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
if test -f conf.libmcrypttest ; then
:
else
AC_MSG_RESULT(no)
fi
if test -f conf.libmcrypttest ; then
:
else
echo "*** Could not run libmcrypt test program, checking why..."
CFLAGS="$CFLAGS $LIBMCRYPT_CFLAGS"
LIBS="$LIBS $LIBMCRYPT_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mcrypt.h>
], [
#if MCRYPT_API_VERSION <= 20010201
#if MCRYPT_API_VERSION <= 19991015
/* version 2.2 */
int x = mcrypt_get_key_size(MCRYPT_TWOFISH_128);
return 0;
#else
/* version 2.4 before 11 */
MCRYPT td = mcrypt_module_open("twofish", NULL, "cbc", NULL);
mcrypt_module_close(td);
return 0;
#endif /* 19991015 */
#else
return !!mcrypt_check_version(NULL);
#endif /* 20010201 */
],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding LIBMCRYPT or finding the wrong"
echo "*** version of LIBMCRYPT. If it is not finding LIBMCRYPT, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
echo "***" ],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means LIBMCRYPT was incorrectly installed"
echo "*** or that you have moved LIBMCRYPT since it was installed. In the latter case, you"
echo "*** may want to edit the libmcrypt-config script: $LIBMCRYPT_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
LIBMCRYPT_CFLAGS=""
LIBMCRYPT_LIBS=""
ifelse([$3], , :, [$3])
fi
rm -f conf.libmcrypttest
AC_SUBST(LIBMCRYPT_CFLAGS)
AC_SUBST(LIBMCRYPT_LIBS)
])
dnl *-*wedit:notab*-* Please keep this as the last line.
|
