build/autoconf/libIDL-2.m4
author Jim Blandy <jimb@mozilla.org>
Tue, 26 Aug 2008 14:34:35 -0700
changeset 18461 c397279747fa966ebedd9806d691c7aeede5cbe3
parent 1 9b2a99adc05e53cd4010de512f50118594756650
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 LIBIDL

dnl AM_PATH_LIBIDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
dnl Test for LIBIDL, and define LIBIDL_CFLAGS and LIBIDL_LIBS
dnl
AC_DEFUN([AM_PATH_LIBIDL_2],
[dnl 
dnl Get the cflags and libraries from the libIDL-config-2 script
dnl
AC_ARG_WITH(libIDL-prefix,[  --with-libIDL-prefix=PFX
                          Prefix where libIDL is installed (optional)],
            libIDL_config_prefix="$withval", libIDL_config_prefix="")
AC_ARG_WITH(libIDL-exec-prefix,[  --with-libIDL-exec-prefix=PFX
                          Exec prefix where libIDL is installed (optional)],
            libIDL_config_exec_prefix="$withval", libIDL_config_exec_prefix="")
AC_ARG_ENABLE(libIDLtest, [  --disable-libIDLtest    Do not try to compile and run a test libIDL program],
		    , enable_libIDLtest=yes)

  if test x$libIDL_config_exec_prefix != x ; then
     libIDL_config_args="$libIDL_config_args --exec-prefix=$libIDL_config_exec_prefix"
     if test x${LIBIDL_CONFIG+set} != xset ; then
        LIBIDL_CONFIG=$libIDL_config_exec_prefix/bin/libIDL-config-2
     fi
  fi
  if test x$libIDL_config_prefix != x ; then
     libIDL_config_args="$libIDL_config_args --prefix=$libIDL_config_prefix"
     if test x${LIBIDL_CONFIG+set} != xset ; then
        LIBIDL_CONFIG=$libIDL_config_prefix/bin/libIDL-config-2
     fi
  fi

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

  AC_PATH_PROG(LIBIDL_CONFIG, libIDL-config-2, no)
  min_libIDL_version=ifelse([$1], ,0.6.0,$1)
  AC_MSG_CHECKING(for libIDL - version >= $min_libIDL_version)
  no_libIDL=""
  if test "$LIBIDL_CONFIG" = "no" ; then
    no_libIDL=yes
  else
    LIBIDL_CFLAGS=`$LIBIDL_CONFIG $libIDL_config_args --cflags`
    LIBIDL_LIBS=`$LIBIDL_CONFIG $libIDL_config_args --libs`
    # hack to allow us to keep using libIDL 0.6.3-0.6.7. Anyone may remove
    # this after we start requiring libIDL 0.6.8 or anything higher
    LIBIDL_CFLAGS="$GLIB_CFLAGS $LIBIDL_CFLAGS"
    LIBIDL_LIBS="$GLIB_LIBS $LIBIDL_LIBS"
    libIDL_config_major_version=`$LIBIDL_CONFIG $libIDL_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    libIDL_config_minor_version=`$LIBIDL_CONFIG $libIDL_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    libIDL_config_micro_version=`$LIBIDL_CONFIG $libIDL_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    if test "x$enable_libIDLtest" = "xyes" ; then
      ac_save_CFLAGS="$CFLAGS"
      ac_save_LIBS="$LIBS"
      CFLAGS="$CFLAGS $LIBIDL_CFLAGS"
      LIBS="$LIBIDL_LIBS $LIBS"
dnl
dnl Now check if the installed LIBIDL is sufficiently new.
dnl
      rm -f conf.libIDLtest
      AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <libIDL/IDL.h>

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

  system ("touch conf.libIDLtest");

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

  if ((libIDL_major_version != $libIDL_config_major_version) ||
      (libIDL_minor_version != $libIDL_config_minor_version) ||
      (libIDL_micro_version != $libIDL_config_micro_version))
    {
      printf("\n*** 'libIDL-config-2 --version' returned %d.%d.%d, but libIDL (%d.%d.%d)\n", 
             $libIDL_config_major_version, $libIDL_config_minor_version, $libIDL_config_micro_version,
             libIDL_major_version, libIDL_minor_version, libIDL_micro_version);
      printf ("*** was found! If libIDL-config-2 was correct, then it is best\n");
      printf ("*** to remove the old version of LIBIDL. 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 libIDL-config-2 was wrong, set the environment variable LIBIDL_CONFIG\n");
      printf("*** to point to the correct copy of libIDL-config-2, and remove the file config.cache\n");
      printf("*** before re-running configure\n");
    } 
  else if ((libIDL_major_version != LIBIDL_MAJOR_VERSION) ||
	   (libIDL_minor_version != LIBIDL_MINOR_VERSION) ||
           (libIDL_micro_version != LIBIDL_MICRO_VERSION))
    {
      printf("\n*** libIDL header files (version %d.%d.%d) do not match\n",
	     LIBIDL_MAJOR_VERSION, LIBIDL_MINOR_VERSION, LIBIDL_MICRO_VERSION);
      printf("*** library (version %d.%d.%d)\n",
	     libIDL_major_version, libIDL_minor_version, libIDL_micro_version);
    }
  else
    {
      if ((libIDL_major_version > major) ||
        ((libIDL_major_version == major) && (libIDL_minor_version > minor)) ||
        ((libIDL_major_version == major) && (libIDL_minor_version == minor) && (libIDL_micro_version >= micro)))
      {
        return 0;
       }
     else
      {
        printf("\n*** An old version of libIDL (%d.%d.%d) was found.\n",
               libIDL_major_version, libIDL_minor_version, libIDL_micro_version);
        printf("*** You need at least libIDL version %d.%d.%d.\n",
               major, minor, micro);
        printf("***\n");
        printf("*** If you have already installed a sufficiently new version, this error\n");
        printf("*** probably means that the wrong copy of the libIDL-config-2 shell script is\n");
        printf("*** being found. The easiest way to fix this is to remove the old version\n");
        printf("*** of libIDL, but you can also set the LIBIDL_CONFIG environment to point to the\n");
        printf("*** correct copy of libIDL-config-2. (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_libIDL=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
       CFLAGS="$ac_save_CFLAGS"
       LIBS="$ac_save_LIBS"
     fi
  fi
  if test "x$no_libIDL" = x ; then
     AC_MSG_RESULT(yes)
     ifelse([$2], , :, [$2])     
  else
     AC_MSG_RESULT(no)
     if test "$LIBIDL_CONFIG" = "no" ; then
       echo "*** The libIDL-config-2 script installed by libIDL could not be found"
       echo "*** If libIDL was installed in PREFIX, make sure PREFIX/bin is in"
       echo "*** your path, or set the LIBIDL_CONFIG environment variable to the"
       echo "*** full path to libIDL-config-2."
     else
       if test -f conf.libIDLtest ; then
        :
       else
          echo "*** Could not run libIDL test program, checking why..."
          CFLAGS="$CFLAGS $LIBIDL_CFLAGS"
          LIBS="$LIBS $LIBIDL_LIBS"
          AC_TRY_LINK([
#include <stdio.h>
#include <stdlib.h>
#include <libIDL/IDL.h>
],      [ return IDL_get_libver_string ? 1 : 0; ],
        [ echo "*** The test program compiled, but did not run. This usually means"
          echo "*** that the run-time linker is not finding libIDL or finding the wrong"
          echo "*** version of LIBIDL. If it is not finding libIDL, 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 "*** The test program failed to compile or link. See the file config.log for the"
          echo "*** exact error that occured. This usually means libIDL was incorrectly installed"
          echo "*** or that you have moved libIDL since it was installed. In the latter case, you"
          echo "*** may want to edit the libIDL-config-2 script: $LIBIDL_CONFIG" ])
          CFLAGS="$ac_save_CFLAGS"
          LIBS="$ac_save_LIBS"
       fi
     fi
     LIBIDL_CFLAGS=""
     LIBIDL_LIBS=""
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(LIBIDL_CFLAGS)
  AC_SUBST(LIBIDL_LIBS)
  rm -f conf.libIDLtest
])