build/autoconf/glib.m4
author Jim Blandy <jimb@mozilla.org>
Tue, 26 Aug 2008 14:34:35 -0700
changeset 18461 c397279747fa966ebedd9806d691c7aeede5cbe3
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 42263 7ef2a4732afe3ebc09763d3d0e2fa070328e5a5f
permissions -rw-r--r--
To allow altoptions.m4 to be shared by both the main Mozilla and the SpiderMonkey build code, sincluding it shouldn't have any side effects. Since only Mozilla wants the side effect, move it to Mozilla's aclocal.m4.

# Configure paths for GLIB
# Owen Taylor     97-11-3

dnl AM_PATH_GLIB([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if "gmodule" or 
dnl gthread is specified in MODULES, pass to glib-config
dnl
AC_DEFUN([AM_PATH_GLIB],
[dnl 
dnl Get the cflags and libraries from the glib-config script
dnl
AC_ARG_WITH(glib-prefix,[  --with-glib-prefix=PFX  Prefix where GLIB is installed (optional)],
            glib_config_prefix="$withval", glib_config_prefix="")
AC_ARG_WITH(glib-exec-prefix,[  --with-glib-exec-prefix=PFX
                          Exec prefix where GLIB is installed (optional)],
            glib_config_exec_prefix="$withval", glib_config_exec_prefix="")
AC_ARG_ENABLE(glibtest, [  --disable-glibtest      Do not try to compile and run a test GLIB program],
		    , enable_glibtest=yes)

  if test x$glib_config_exec_prefix != x ; then
     glib_config_args="$glib_config_args --exec-prefix=$glib_config_exec_prefix"
     if test x${GLIB_CONFIG+set} != xset ; then
        GLIB_CONFIG=$glib_config_exec_prefix/bin/glib-config
     fi
  fi
  if test x$glib_config_prefix != x ; then
     glib_config_args="$glib_config_args --prefix=$glib_config_prefix"
     if test x${GLIB_CONFIG+set} != xset ; then
        GLIB_CONFIG=$glib_config_prefix/bin/glib-config
     fi
  fi

  for module in . $4
  do
      case "$module" in
         gmodule) 
             glib_config_args="$glib_config_args gmodule"
         ;;
         gthread) 
             glib_config_args="$glib_config_args gthread"
         ;;
      esac
  done

  dnl Force a version check to keep upgraded versions from being overridden by the cached value.
  unset ac_cv_path_GLIB_CONFIG

  AC_PATH_PROG(GLIB_CONFIG, glib-config, no)
  min_glib_version=ifelse([$1], ,0.99.7,$1)
  AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)
  no_glib=""
  if test "$GLIB_CONFIG" = "no" ; then
    no_glib=yes
  else
    GLIB_CFLAGS=`$GLIB_CONFIG $glib_config_args --cflags`
    GLIB_LIBS=`$GLIB_CONFIG $glib_config_args --libs`
    glib_config_major_version=`$GLIB_CONFIG $glib_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    glib_config_minor_version=`$GLIB_CONFIG $glib_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    glib_config_micro_version=`$GLIB_CONFIG $glib_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    if test "x$enable_glibtest" = "xyes" ; then
      ac_save_CFLAGS="$CFLAGS"
      ac_save_LIBS="$LIBS"
      CFLAGS="$CFLAGS $GLIB_CFLAGS"
      LIBS="$GLIB_LIBS $LIBS"
dnl
dnl Now check if the installed GLIB is sufficiently new. (Also sanity
dnl checks the results of glib-config to some extent
dnl
      rm -f conf.glibtest
      AC_TRY_RUN([
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>

int 
main ()
{
  int major, minor, micro;
  char *tmp_version;

  system ("touch conf.glibtest");

  /* HP/UX 9 (%@#!) writes to sscanf strings */
  tmp_version = g_strdup("$min_glib_version");
  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string\n", "$min_glib_version");
     exit(1);
   }

  if ((glib_major_version != $glib_config_major_version) ||
      (glib_minor_version != $glib_config_minor_version) ||
      (glib_micro_version != $glib_config_micro_version))
    {
      printf("\n*** 'glib-config --version' returned %d.%d.%d, but GLIB (%d.%d.%d)\n", 
             $glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,
             glib_major_version, glib_minor_version, glib_micro_version);
      printf ("*** was found! If glib-config was correct, then it is best\n");
      printf ("*** to remove the old version of GLIB. You may also be able to fix the error\n");
      printf("*** by modifying your LD_LIBRARY_PATH environment 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 glib-config was wrong, set the environment variable GLIB_CONFIG\n");
      printf("*** to point to the correct copy of glib-config, and remove the file config.cache\n");
      printf("*** before re-running configure\n");
    } 
  else if ((glib_major_version != GLIB_MAJOR_VERSION) ||
	   (glib_minor_version != GLIB_MINOR_VERSION) ||
           (glib_micro_version != GLIB_MICRO_VERSION))
    {
      printf("*** GLIB header files (version %d.%d.%d) do not match\n",
	     GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
      printf("*** library (version %d.%d.%d)\n",
	     glib_major_version, glib_minor_version, glib_micro_version);
    }
  else
    {
      if ((glib_major_version > major) ||
        ((glib_major_version == major) && (glib_minor_version > minor)) ||
        ((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))
      {
        return 0;
       }
     else
      {
        printf("\n*** An old version of GLIB (%d.%d.%d) was found.\n",
               glib_major_version, glib_minor_version, glib_micro_version);
        printf("*** You need a version of GLIB newer than %d.%d.%d. The latest version of\n",
	       major, minor, micro);
        printf("*** GLIB is always available from ftp://ftp.gtk.org.\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 glib-config shell script is\n");
        printf("*** being found. The easiest way to fix this is to remove the old version\n");
        printf("*** of GLIB, but you can also set the GLIB_CONFIG environment to point to the\n");
        printf("*** correct copy of glib-config. (In this case, you will have to\n");
        printf("*** modify your LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf\n");
        printf("*** so that the correct libraries are found at run-time))\n");
      }
    }
  return 1;
}
],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
       CFLAGS="$ac_save_CFLAGS"
       LIBS="$ac_save_LIBS"
     fi
  fi
  if test "x$no_glib" = x ; then
     AC_MSG_RESULT(yes)
     ifelse([$2], , :, [$2])     
  else
     AC_MSG_RESULT(no)
     if test "$GLIB_CONFIG" = "no" ; then
       echo "*** The glib-config script installed by GLIB could not be found"
       echo "*** If GLIB was installed in PREFIX, make sure PREFIX/bin is in"
       echo "*** your path, or set the GLIB_CONFIG environment variable to the"
       echo "*** full path to glib-config."
     else
       if test -f conf.glibtest ; then
        :
       else
          echo "*** Could not run GLIB test program, checking why..."
          CFLAGS="$CFLAGS $GLIB_CFLAGS"
          LIBS="$LIBS $GLIB_LIBS"
          AC_TRY_LINK([
#include <glib.h>
#include <stdio.h>
],      [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],
        [ echo "*** The test program compiled, but did not run. This usually means"
          echo "*** that the run-time linker is not finding GLIB or finding the wrong"
          echo "*** version of GLIB. If it is not finding GLIB, 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 "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
          echo "*** came with the system with the command"
          echo "***"
          echo "***    rpm --erase --nodeps gtk gtk-devel" ],
        [ echo "*** The test program failed to compile or link. See the file config.log for the"
          echo "*** exact error that occured. This usually means GLIB was incorrectly installed"
          echo "*** or that you have moved GLIB since it was installed. In the latter case, you"
          echo "*** may want to edit the glib-config script: $GLIB_CONFIG" ])
          CFLAGS="$ac_save_CFLAGS"
          LIBS="$ac_save_LIBS"
       fi
     fi
     GLIB_CFLAGS=""
     GLIB_LIBS=""
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(GLIB_CFLAGS)
  AC_SUBST(GLIB_LIBS)
  rm -f conf.glibtest
])