gstreamer.m4

   1 dnl Configure paths for GStreamer
   2 dnl This was based upon the glib.m4 created by Owen Taylor 97-11-3
   3 dnl Changes mostly involve replacing GLIB with GStreamer
   4 dnl
   5 dnl Written by Thomas Nyberg <thomas.nyberg@codefactory.se> 2001-03-01
   6
   7 dnl AM_PATH_GSTREAMER([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
   8 dnl Test for GStreamer, and define GSTREAMER_CFLAGS and GSTREAMER_LIBS
   9 dnl
  10 AC_DEFUN(AM_PATH_GSTREAMER,
  11 [
  12 dnl
  13 dnl Get command-line stuff
  14 dnl
  15         AC_ARG_WITH(gstreamer-prefix,[  --with-gstreamer-prefix=PFX   Prefix where GStreamer is installed (optional)],
  16                 gstreamer_config_prefix="$withval", gstreamer_config_prefix="")
  17         AC_ARG_WITH(gstreamer-exec-prefix,[  --with-gstreamer-exec-prefix=PFX Exec prefix where GStreamer is installed (optional)],
  18                 gstreamer_config_exec_prefix="$withval", gstreamer_config_exec_prefix="")
  19         AC_ARG_ENABLE(gstreamer-test, [  --disable-gstreamer-test       Do not try and run a test GStreamer-program],
  20                 , enable_gstreamer_test=yes)
  21
  22         if test "x$gstreamer_config_prefix" != "x"; then
  23                 gstreamer_config_args="$gstreamer_config_args --prefix=$gstreamer_config_prefix" ;
  24
  25                 if test "x${GSTREAMER_CONFIG+set}" != "xset" ; then
  26                         GSTREAMER_CONFIG="$gstreamer_config_prefix/bin/gstreamer-config"
  27                 fi
  28         fi
  29         if test "x$gstreamer_config_exec_prefix" != "x"; then
  30                 gstreamer_config_args="$gstreamer_config_args --exec-prefix=$gstreamer_config_exec_prefix" ;
  31
  32                 if test "x${GSTREAMER_CONFIG+set}" != "xset" ; then
  33                         GSTREAMER_CONFIG="$gstreamer_config_exec_prefix/bin/gstreamer-config"
  34                 fi
  35         fi
  36
  37         AC_PATH_PROG(GSTREAMER_CONFIG, gstreamer-config, no)
  38
  39         if test "x$1" == "x" ; then
  40                 min_gstreamer_version="0.0.1"
  41         else
  42                 min_gstreamer_version="$1"
  43         fi
  44
  45 dnl
  46 dnl Check to make sure version wanted is better than the existing version
  47 dnl
  48         AC_MSG_CHECKING(for GStreamer-version >= $min_gstreamer_version)
  49         no_gstreamer=""
  50
  51         if test "x$GSTREAMER_CONFIG" = "xno" ; then
  52                 no_gstreamer=yes
  53         else
  54                 GSTREAMER_CFLAGS=`$GSTREAMER_CONFIG $gstreamer_config_args --cflags`
  55                 GSTREAMER_LIBS=`$GSTREAMER_CONFIG $gstreamer_config_args --libs`
  56
  57                 gstreamer_config_major_version=`$GSTREAMER_CONFIG $gstreamer_config_args --version | \
  58                                                 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
  59                 gstreamer_config_minor_version=`$GSTREAMER_CONFIG $gstreamer_config_args --version | \
  60                                                 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
  61                 gstreamer_config_micro_version=`$GSTREAMER_CONFIG $gstreamer_config_args --version | \
  62                                                 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
  63
  64                 if test "x$enable_gstreamer_test" = "xyes" ; then
  65                         ac_save_CFLAGS="$CFLAGS"
  66                         ac_save_LIBS="$LIBS"
  67                         CFLAGS="$CFLAGS $GSTREAMER_CFLAGS"
  68                         LIBS="$GSTREAMER_LIBS $LIBS"
  69 dnl
  70 dnl Try and run a program linked with libs
  71 dnl
  72 AC_TRY_RUN([
  73 #include <gst/gst.h>
  74 #include <stdio.h>
  75 #include <stdlib.h>
  76 #include <string.h>
  77 int
  78 main ()
  79 {
  80         int major, minor, micro;
  81         char *tmp_version;
  82
  83         system("touch conf.gstreamertest");
  84
  85         tmp_version = strdup("$min_gstreamer_version");
  86         if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
  87                 printf("%s, bad version string\n", "$min_gstreamer_version");
  88                 return 1;
  89         }
  90
  91         if (($gstreamer_config_major_version > major) ||
  92                 (($gstreamer_config_major_version == major) && ($gstreamer_config_minor_version > minor)) ||
  93                 (($gstreamer_config_major_version == major) && ($gstreamer_config_minor_version == minor) &&
  94                 ($gstreamer_config_micro_version >= micro))) {
  95                 return 0;
  96         } else {
  97                 printf("\n*** An old version of GStreamer(%d.%d.%d) was found.\n",
  98                         $gstreamer_config_major_version, $gstreamer_config_minor_version,
  99                         $gstreamer_config_micro_version);
 100
 101                 printf("*** You need a version of GStreamer newer than %d.%d.%d.\n", major, minor, micro);
 102
 103         }
 104
 105         return 1;
 106
 107 }
 108 ],, no_gstreamer=yes, [echo $ac_n "cross compiling; assuming OK... $ac_c"])
 109                         CFLAGS="$ac_save_CFLAGS"
 110                         LIBS="$ac_save_LIBS"
 111                 fi
 112         fi
 113         if test "x$no_gstreamer" = "x" ; then
 114                 AC_MSG_RESULT(yes)
 115                 ifelse([$2], , :, [$2])
 116         else
 117 dnl
 118 dnl Something went wrong, looks like GStreamer was not found
 119 dnl
 120                 if test "$GSTREAMER_CONFIG" = "no" ; then
 121                         echo "*** The gstreamer-config script installed by GStreamer could not be found"
 122                         echo "*** If GStreamer was installed in PREFIX, make sure PREFIX/bin is in"
 123                         echo "*** your path, or set the GSTREAMER_CONFIG environment variable to the"
 124                         echo "*** full path to gstreamer-config."
 125                 else
 126                         if test -f conf.gstreamertest ; then
 127                                 :
 128                         else
 129                                 echo "*** Could not run GStreamer test program, checking why..."
 130                                 CFLAGS="$CFLAGS $GSTREAMER_CFLAGS"
 131                                 LIBS="$LIBS $GSTREAMER_LIBS"
 132 AC_TRY_LINK([
 133 #include <gst/gst.h>
 134 #include <stdio.h>
 135 ],
 136 [
 137 gst_init(NULL, NULL);
 138 return 0;
 139 ],
 140         [ echo "*** The test program compiled, but did not run. This usually means"
 141           echo "*** that the run-time linker is not finding GStreamer or finding the wrong"
 142           echo "*** version of GStreamer. If it is not finding GStreamer, you'll need to set your"
 143           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 144           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 145           echo "*** is required on your system"
 146           echo "***"
 147           echo "*** If you have an old version installed, it is best to remove it, although"
 148           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
 149         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 150           echo "*** exact error that occured. This usually means GStreamer was incorrectly installed"
 151           echo "*** or that you have moved GStreamer since it was installed. In the latter case, you"
 152           echo "*** may want to edit the gstremaer-config script: $GSTREAMER_CONFIG" ])
 153                                 CFLAGS="$ac_save_CFLAGS"
 154                                 LIBS="$ac_save_LIBS"
 155                        fi
 156                 fi
 157                 GSTREAMER_CFLAGS=""
 158                 GSTREAMER_LIBS=""
 159                 ifelse([$3], , :, [$3])
 160         fi
 161
 162 dnl
 163 dnl Define our flags and libs
 164 dnl
 165         AC_SUBST(GSTREAMER_CFLAGS)
 166         AC_SUBST(GSTREAMER_LIBS)
 167         rm -f conf.gstreamertest
 168 ])
 169