1dnl Autoconf macros for libgnutls 2dnl $id$ 3 4# Modified for LIBGNUTLS -- nmav 5# Configure paths for LIBGCRYPT 6# Shamelessly stolen from the one of XDELTA by Owen Taylor 7# Werner Koch 99-12-09 8 9dnl AM_PATH_LIBGNUTLS([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) 10dnl Test for libgnutls, and define LIBGNUTLS_CFLAGS and LIBGNUTLS_LIBS 11dnl 12AC_DEFUN([AX_PATH_LIBGNUTLS], 13[dnl 14dnl Get the cflags and libraries from the libgnutls-config script 15dnl 16AC_ARG_WITH(libgnutls-prefix, 17 [ --with-libgnutls-prefix=PFX Prefix where libgnutls is installed (optional)], 18 libgnutls_config_prefix="$withval", libgnutls_config_prefix="") 19 20 if test x$libgnutls_config_prefix != x ; then 21 if test x${LIBGNUTLS_CONFIG+set} != xset ; then 22 LIBGNUTLS_CONFIG=$libgnutls_config_prefix/bin/libgnutls-config 23 fi 24 fi 25 26 AC_PATH_PROG(LIBGNUTLS_CONFIG, libgnutls-config, no) 27 AC_PATH_PROG(PKG_CONFIG, pkg-config, no) 28 no_libgnutls="" 29 if test "$LIBGNUTLS_CONFIG" != "no"; then 30 LIBGNUTLS_CFLAGS=`$LIBGNUTLS_CONFIG $libgnutls_config_args --cflags` 31 LIBGNUTLS_LIBS="`$LIBGNUTLS_CONFIG $libgnutls_config_args --libs` -lpthread -lgcrypt" 32 libgnutls_config_version=`$LIBGNUTLS_CONFIG $libgnutls_config_args --version` 33 elif test "$PKG_CONFIG" != "no"; then 34 LIBGNUTLS_CFLAGS=`$PKG_CONFIG --cflags gnutls` 35 LIBGNUTLS_LIBS="`$PKG_CONFIG --libs gnutls` -lpthread -lgcrypt" 36 libgnutls_config_version=`$PKG_CONFIG --modversion gnutls` 37 else 38 no_libgnutls=yes 39 fi 40 41 min_libgnutls_version=ifelse([$1], ,0.1.0,$1) 42 AC_MSG_CHECKING(for libgnutls - version >= $min_libgnutls_version) 43 44 if test x"$no_libgnutls" = x""; then 45 46 ac_save_CFLAGS="$CFLAGS" 47 ac_save_LIBS="$LIBS" 48 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS" 49 LIBS="$LIBS $LIBGNUTLS_LIBS" 50dnl 51dnl Now check if the installed libgnutls is sufficiently new. Also sanity 52dnl checks the results of libgnutls-config to some extent 53dnl 54 rm -f conf.libgnutlstest 55 AC_TRY_RUN([ 56#include <stdio.h> 57#include <stdlib.h> 58#include <string.h> 59#include <gnutls/gnutls.h> 60 61int 62main () 63{ 64 system ("touch conf.libgnutlstest"); 65 66 if( strcmp( gnutls_check_version(NULL), "$libgnutls_config_version" ) ) 67 { 68 printf("\n*** 'libgnutls-config --version' returned %s, but LIBGNUTLS (%s)\n", 69 "$libgnutls_config_version", gnutls_check_version(NULL) ); 70 printf("*** was found! If libgnutls-config was correct, then it is best\n"); 71 printf("*** to remove the old version of LIBGNUTLS. You may also be able to fix the error\n"); 72 printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n"); 73 printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n"); 74 printf("*** required on your system.\n"); 75 printf("*** If libgnutls-config was wrong, set the environment variable LIBGNUTLS_CONFIG\n"); 76 printf("*** to point to the correct copy of libgnutls-config, and remove the file config.cache\n"); 77 printf("*** before re-running configure\n"); 78 } 79 else if ( strcmp(gnutls_check_version(NULL), LIBGNUTLS_VERSION ) ) 80 { 81 printf("\n*** LIBGNUTLS header file (version %s) does not match\n", LIBGNUTLS_VERSION); 82 printf("*** library (version %s)\n", gnutls_check_version(NULL) ); 83 } 84 else 85 { 86 if ( gnutls_check_version( "$min_libgnutls_version" ) ) 87 { 88 return 0; 89 } 90 else 91 { 92 printf("no\n*** An old version of LIBGNUTLS (%s) was found.\n", 93 gnutls_check_version(NULL) ); 94 printf("*** You need a version of LIBGNUTLS newer than %s. The latest version of\n", 95 "$min_libgnutls_version" ); 96 printf("*** LIBGNUTLS is always available from ftp://gnutls.hellug.gr/pub/gnutls.\n"); 97 printf("*** \n"); 98 printf("*** If you have already installed a sufficiently new version, this error\n"); 99 printf("*** probably means that the wrong copy of the libgnutls-config shell script is\n"); 100 printf("*** being found. The easiest way to fix this is to remove the old version\n"); 101 printf("*** of LIBGNUTLS, but you can also set the LIBGNUTLS_CONFIG environment to point to the\n"); 102 printf("*** correct copy of libgnutls-config. (In this case, you will have to\n"); 103 printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n"); 104 printf("*** so that the correct libraries are found at run-time))\n"); 105 } 106 } 107 return 1; 108} 109],, no_libgnutls=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) 110 CFLAGS="$ac_save_CFLAGS" 111 LIBS="$ac_save_LIBS" 112 fi 113 114 if test "x$no_libgnutls" = x ; then 115 AC_MSG_RESULT(yes) 116 ifelse([$2], , :, [$2]) 117 else 118 if test -f conf.libgnutlstest ; then 119 : 120 else 121 AC_MSG_RESULT(no) 122 fi 123 if test "$LIBGNUTLS_CONFIG" = "no" ; then 124 echo "*** The libgnutls-config script installed by LIBGNUTLS could not be found" 125 echo "*** If LIBGNUTLS was installed in PREFIX, make sure PREFIX/bin is in" 126 echo "*** your path, or set the LIBGNUTLS_CONFIG environment variable to the" 127 echo "*** full path to libgnutls-config." 128 else 129 if test -f conf.libgnutlstest ; then 130 : 131 else 132 echo "*** Could not run libgnutls test program, checking why..." 133 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS" 134 LIBS="$LIBS $LIBGNUTLS_LIBS" 135 AC_TRY_LINK([ 136#include <stdio.h> 137#include <stdlib.h> 138#include <string.h> 139#include <gnutls/gnutls.h> 140], [ return !!gnutls_check_version(NULL); ], 141 [ echo "*** The test program compiled, but did not run. This usually means" 142 echo "*** that the run-time linker is not finding LIBGNUTLS or finding the wrong" 143 echo "*** version of LIBGNUTLS. If it is not finding LIBGNUTLS, you'll need to set your" 144 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" 145 echo "*** to the installed location Also, make sure you have run ldconfig if that" 146 echo "*** is required on your system" 147 echo "***" 148 echo "*** If you have an old version installed, it is best to remove it, although" 149 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" 150 echo "***" ], 151 [ echo "*** The test program failed to compile or link. See the file config.log for the" 152 echo "*** exact error that occured. This usually means LIBGNUTLS was incorrectly installed" 153 echo "*** or that you have moved LIBGNUTLS since it was installed. In the latter case, you" 154 echo "*** may want to edit the libgnutls-config script: $LIBGNUTLS_CONFIG" ]) 155 CFLAGS="$ac_save_CFLAGS" 156 LIBS="$ac_save_LIBS" 157 fi 158 fi 159 LIBGNUTLS_CFLAGS="" 160 LIBGNUTLS_LIBS="" 161 ifelse([$3], , :, [$3]) 162 fi 163 rm -f conf.libgnutlstest 164 AC_SUBST(LIBGNUTLS_CFLAGS) 165 AC_SUBST(LIBGNUTLS_LIBS) 166]) 167 168dnl *-*wedit:notab*-* Please keep this as the last line. 169