162 lines
6.4 KiB
Plaintext
162 lines
6.4 KiB
Plaintext
dnl Autoconf macros for libtasn1
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dnl $id$
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# Modified for LIBTASN1 -- nmav
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# Configure paths for LIBGCRYPT
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# Shamelessly stolen from the one of XDELTA by Owen Taylor
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# Werner Koch 99-12-09
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dnl AM_PATH_LIBTASN1([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
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dnl Test for libtasn1, and define LIBTASN1_CFLAGS and LIBTASN1_LIBS
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dnl
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AC_DEFUN([AM_PATH_LIBTASN1],
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[dnl
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dnl Get the cflags and libraries from the libtasn1-config script
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dnl
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AC_ARG_WITH(libtasn1-prefix,
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[ --with-libtasn1-prefix=PFX Prefix where libtasn1 is installed (optional)],
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libtasn1_config_prefix="$withval", libtasn1_config_prefix="")
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if test x$libtasn1_config_prefix != x ; then
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if test x${LIBTASN1_CONFIG+set} != xset ; then
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LIBTASN1_CONFIG=$libtasn1_config_prefix/bin/libtasn1-config
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fi
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fi
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AC_PATH_PROG(LIBTASN1_CONFIG, libtasn1-config, no)
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min_libtasn1_version=ifelse([$1], ,0.1.0,$1)
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AC_MSG_CHECKING(for libtasn1 - version >= $min_libtasn1_version)
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no_libtasn1=""
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if test "$LIBTASN1_CONFIG" = "no" ; then
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no_libtasn1=yes
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else
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LIBTASN1_CFLAGS=`$LIBTASN1_CONFIG $libtasn1_config_args --cflags`
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LIBTASN1_LIBS=`$LIBTASN1_CONFIG $libtasn1_config_args --libs`
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libtasn1_config_version=`$LIBTASN1_CONFIG $libtasn1_config_args --version`
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ac_save_CFLAGS="$CFLAGS"
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ac_save_LIBS="$LIBS"
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CFLAGS="$CFLAGS $LIBTASN1_CFLAGS"
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LIBS="$LIBS $LIBTASN1_LIBS"
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dnl
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dnl Now check if the installed libtasn1 is sufficiently new. Also sanity
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dnl checks the results of libtasn1-config to some extent
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dnl
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rm -f conf.libtasn1test
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AC_TRY_RUN([
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libtasn1.h>
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int
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main ()
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{
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system ("touch conf.libtasn1test");
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if( strcmp( asn1_check_version(NULL), "$libtasn1_config_version" ) )
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{
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printf("\n*** 'libtasn1-config --version' returned %s, but LIBTASN1 (%s)\n",
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"$libtasn1_config_version", asn1_check_version(NULL) );
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printf("*** was found! If libtasn1-config was correct, then it is best\n");
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printf("*** to remove the old version of LIBTASN1. You may also be able to fix the error\n");
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printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
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printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
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printf("*** required on your system.\n");
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printf("*** If libtasn1-config was wrong, set the environment variable LIBTASN1_CONFIG\n");
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printf("*** to point to the correct copy of libtasn1-config, and remove the file config.cache\n");
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printf("*** before re-running configure\n");
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}
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else if ( strcmp(asn1_check_version(NULL), LIBTASN1_VERSION ) )
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{
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printf("\n*** LIBTASN1 header file (version %s) does not match\n", LIBTASN1_VERSION);
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printf("*** library (version %s)\n", asn1_check_version(NULL) );
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}
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else
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{
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if ( asn1_check_version( "$min_libtasn1_version" ) )
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{
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return 0;
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}
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else
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{
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printf("no\n*** An old version of LIBTASN1 (%s) was found.\n",
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asn1_check_version(NULL) );
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printf("*** You need a version of LIBTASN1 newer than %s. The latest version of\n",
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"$min_libtasn1_version" );
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printf("*** LIBTASN1 is always available from ftp://gnutls.hellug.gr/pub/gnutls/libtasn1.\n");
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printf("*** \n");
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printf("*** If you have already installed a sufficiently new version, this error\n");
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printf("*** probably means that the wrong copy of the libtasn1-config shell script is\n");
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printf("*** being found. The easiest way to fix this is to remove the old version\n");
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printf("*** of LIBTASN1, but you can also set the LIBTASN1_CONFIG environment to point to the\n");
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printf("*** correct copy of libtasn1-config. (In this case, you will have to\n");
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printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
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printf("*** so that the correct libraries are found at run-time))\n");
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}
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}
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return 0;
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}
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],, no_libtasn1=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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CFLAGS="$ac_save_CFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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if test "x$no_libtasn1" = x ; then
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AC_MSG_RESULT(yes)
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ifelse([$2], , :, [$2])
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else
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if test -f conf.libtasn1test ; then
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:
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else
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AC_MSG_RESULT(no)
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fi
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if test "$LIBTASN1_CONFIG" = "no" ; then
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echo "*** The libtasn1-config script installed by LIBTASN1 could not be found"
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echo "*** If LIBTASN1 was installed in PREFIX, make sure PREFIX/bin is in"
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echo "*** your path, or set the LIBTASN1_CONFIG environment variable to the"
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echo "*** full path to libtasn1-config."
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else
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if test -f conf.libtasn1test ; then
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:
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else
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echo "*** Could not run libtasn1 test program, checking why..."
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CFLAGS="$CFLAGS $LIBTASN1_CFLAGS"
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LIBS="$LIBS $LIBTASN1_LIBS"
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AC_TRY_LINK([
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libtasn1.h>
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], [ return !!asn1_check_version(NULL); ],
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[ echo "*** The test program compiled, but did not run. This usually means"
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echo "*** that the run-time linker is not finding LIBTASN1 or finding the wrong"
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echo "*** version of LIBTASN1. If it is not finding LIBTASN1, you'll need to set your"
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echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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echo "*** to the installed location Also, make sure you have run ldconfig if that"
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echo "*** is required on your system"
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echo "***"
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echo "*** If you have an old version installed, it is best to remove it, although"
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echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
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echo "***" ],
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[ echo "*** The test program failed to compile or link. See the file config.log for the"
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echo "*** exact error that occured. This usually means LIBTASN1 was incorrectly installed"
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echo "*** or that you have moved LIBTASN1 since it was installed. In the latter case, you"
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echo "*** may want to edit the libtasn1-config script: $LIBTASN1_CONFIG" ])
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CFLAGS="$ac_save_CFLAGS"
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LIBS="$ac_save_LIBS"
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fi
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fi
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LIBTASN1_CFLAGS=""
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LIBTASN1_LIBS=""
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ifelse([$3], , :, [$3])
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fi
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rm -f conf.libtasn1test
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AC_SUBST(LIBTASN1_CFLAGS)
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AC_SUBST(LIBTASN1_LIBS)
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])
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dnl *-*wedit:notab*-* Please keep this as the last line.
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