source: mod_gnutls/m4/libgnutls.m4 @ 4ecf14f

debian/masterdebian/stretch-backportsjessie-backportsupstream upstream/0.5.4
Last change on this file since 4ecf14f was 4ecf14f, checked in by Daniel Kahn Gillmor <dkg@…>, 7 years ago

Imported Upstream version 0.5.4

  • Property mode set to 100644
File size: 6.5 KB
Line 
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([AM_PATH_LIBGNUTLS],
13[dnl
14dnl Get the cflags and libraries from the pkg-config script
15dnl
16AC_ARG_WITH(libgnutls-prefix,
17          [  --with-libgnutls-prefix=PFX   Prefix where libgnutls is installed (optional)],
18          pkg_config_prefix="$withval", pkg_config_prefix="")
19
20  if test x$pkg_config_prefix != x ; then
21     if test x${PKG_CONFIG+set} != xset ; then
22        PKG_CONFIG=$pkg_config_prefix/bin/pkg-config
23     fi
24  fi
25
26  AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
27  min_libgnutls_version=ifelse([$1], ,0.1.0,$1)
28  AC_MSG_CHECKING(for libgnutls - version >= $min_libgnutls_version)
29  no_libgnutls=""
30  if test "$PKG_CONFIG" = "no" ; then
31    no_libgnutls=yes
32  else
33    LIBGNUTLS_CFLAGS=`$PKG_CONFIG $pkg_config_args --cflags gnutls`
34    LIBGNUTLS_LIBS=`$PKG_CONFIG $pkg_config_args --libs gnutls`
35    pkg_config_version=`$PKG_CONFIG $pkg_config_args --modversion gnutls`
36
37
38      ac_save_CFLAGS="$CFLAGS"
39      ac_save_LIBS="$LIBS"
40      CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
41      LIBS="$LIBS $LIBGNUTLS_LIBS"
42dnl
43dnl Now check if the installed libgnutls is sufficiently new. Also sanity
44dnl checks the results of pkg-config to some extent
45dnl
46      rm -f conf.libgnutlstest
47      AC_TRY_RUN([
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <gnutls/gnutls.h>
52
53int
54main ()
55{
56    system ("touch conf.libgnutlstest");
57
58    if( strcmp( gnutls_check_version(NULL), "$pkg_config_version" ) )
59    {
60      printf("\n*** 'pkg-config --version' returned %s, but LIBGNUTLS (%s)\n",
61             "$pkg_config_version", gnutls_check_version(NULL) );
62      printf("*** was found! If pkg-config was correct, then it is best\n");
63      printf("*** to remove the old version of LIBGNUTLS. You may also be able to fix the error\n");
64      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
65      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
66      printf("*** required on your system.\n");
67      printf("*** If pkg-config was wrong, set the environment variable PKG_CONFIG\n");
68      printf("*** to point to the correct copy of pkg-config, and remove the file config.cache\n");
69      printf("*** before re-running configure\n");
70    }
71    else if ( strcmp(gnutls_check_version(NULL), LIBGNUTLS_VERSION ) )
72    {
73      printf("\n*** LIBGNUTLS header file (version %s) does not match\n", LIBGNUTLS_VERSION);
74      printf("*** library (version %s)\n", gnutls_check_version(NULL) );
75    }
76    else
77    {
78      if ( gnutls_check_version( "$min_libgnutls_version" ) )
79      {
80        return 0;
81      }
82     else
83      {
84        printf("no\n*** An old version of LIBGNUTLS (%s) was found.\n",
85                gnutls_check_version(NULL) );
86        printf("*** You need a version of LIBGNUTLS newer than %s. The latest version of\n",
87               "$min_libgnutls_version" );
88        printf("*** LIBGNUTLS is always available from ftp://gnutls.hellug.gr/pub/gnutls.\n");
89        printf("*** \n");
90        printf("*** If you have already installed a sufficiently new version, this error\n");
91        printf("*** probably means that the wrong copy of the pkg-config shell script is\n");
92        printf("*** being found. The easiest way to fix this is to remove the old version\n");
93        printf("*** of LIBGNUTLS, but you can also set the PKG_CONFIG environment to point to the\n");
94        printf("*** correct copy of pkg-config. (In this case, you will have to\n");
95        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
96        printf("*** so that the correct libraries are found at run-time))\n");
97      }
98    }
99  return 1;
100}
101],, no_libgnutls=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
102       CFLAGS="$ac_save_CFLAGS"
103       LIBS="$ac_save_LIBS"
104  fi
105
106  if test "x$no_libgnutls" = x ; then
107     AC_MSG_RESULT(yes)
108     ifelse([$2], , :, [$2])
109  else
110     if test -f conf.libgnutlstest ; then
111        :
112     else
113        AC_MSG_RESULT(no)
114     fi
115     if test "$PKG_CONFIG" = "no" ; then
116       echo "*** The pkg-config script installed by LIBGNUTLS could not be found"
117       echo "*** If LIBGNUTLS was installed in PREFIX, make sure PREFIX/bin is in"
118       echo "*** your path, or set the PKG_CONFIG environment variable to the"
119       echo "*** full path to pkg-config."
120     else
121       if test -f conf.libgnutlstest ; then
122        :
123       else
124          echo "*** Could not run libgnutls test program, checking why..."
125          CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
126          LIBS="$LIBS $LIBGNUTLS_LIBS"
127          AC_TRY_LINK([
128#include <stdio.h>
129#include <stdlib.h>
130#include <string.h>
131#include <gnutls/gnutls.h>
132],      [ return !!gnutls_check_version(NULL); ],
133        [ echo "*** The test program compiled, but did not run. This usually means"
134          echo "*** that the run-time linker is not finding LIBGNUTLS or finding the wrong"
135          echo "*** version of LIBGNUTLS. If it is not finding LIBGNUTLS, you'll need to set your"
136          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
137          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
138          echo "*** is required on your system"
139          echo "***"
140          echo "*** If you have an old version installed, it is best to remove it, although"
141          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
142          echo "***" ],
143        [ echo "*** The test program failed to compile or link. See the file config.log for the"
144          echo "*** exact error that occured. This usually means LIBGNUTLS was incorrectly installed"
145          echo "*** or that you have moved LIBGNUTLS since it was installed. In the latter case, you"
146          echo "*** may want to edit the pkg-config script: $PKG_CONFIG" ])
147          CFLAGS="$ac_save_CFLAGS"
148          LIBS="$ac_save_LIBS"
149       fi
150     fi
151     LIBGNUTLS_CFLAGS=""
152     LIBGNUTLS_LIBS=""
153     ifelse([$3], , :, [$3])
154  fi
155  rm -f conf.libgnutlstest
156
157  LIBGNUTLS_VERSION="$pkg_config_version"
158  AC_PATH_PROG(GNUTLS_CERTTOOL, certtool, no)
159
160  AC_SUBST(LIBGNUTLS_CFLAGS)
161  AC_SUBST(LIBGNUTLS_LIBS)
162  AC_SUBST(LIBGNUTLS_VERSION)
163  AC_SUBST(LIBGNUTLS_PREFIX)
164  AC_SUBST(LIBGNUTLS_CERTTOOL)
165
166])
167
168dnl *-*wedit:notab*-*  Please keep this as the last line.
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