1 # Configure paths for GLIB

     2 # Owen Taylor     1997-2001

     3 

     4 dnl AM_PATH_GLIB_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])

     5 dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if gmodule, gobject,

     6 dnl gthread, or gio is specified in MODULES, pass to pkg-config

     7 dnl

     8 AC_DEFUN([AM_PATH_GLIB_2_0],

     9 [dnl 

    10 dnl Get the cflags and libraries from pkg-config

    11 dnl

    12 AC_ARG_ENABLE(glibtest, [  --disable-glibtest      do not try to compile and run a test GLIB program],

    13 		    , enable_glibtest=yes)

    14 

    15   pkg_config_args=glib-2.0

    16   for module in . $4

    17   do

    18       case "$module" in

    19          gmodule) 

    20              pkg_config_args="$pkg_config_args gmodule-2.0"

    21          ;;

    22          gmodule-no-export) 

    23              pkg_config_args="$pkg_config_args gmodule-no-export-2.0"

    24          ;;

    25          gobject) 

    26              pkg_config_args="$pkg_config_args gobject-2.0"

    27          ;;

    28          gthread) 

    29              pkg_config_args="$pkg_config_args gthread-2.0"

    30          ;;

    31          gio*) 

    32              pkg_config_args="$pkg_config_args $module-2.0"

    33          ;;

    34       esac

    35   done

    36 

    37   PKG_PROG_PKG_CONFIG([0.16])

    38 

    39   no_glib=""

    40 

    41   if test "x$PKG_CONFIG" = x ; then

    42     no_glib=yes

    43     PKG_CONFIG=no

    44   fi

    45 

    46   min_glib_version=ifelse([$1], ,2.0.0,$1)

    47   AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)

    48 

    49   if test x$PKG_CONFIG != xno ; then

    50     ## don't try to run the test against uninstalled libtool libs

    51     if $PKG_CONFIG --uninstalled $pkg_config_args; then

    52 	  echo "Will use uninstalled version of GLib found in PKG_CONFIG_PATH"

    53 	  enable_glibtest=no

    54     fi

    55 

    56     if $PKG_CONFIG --atleast-version $min_glib_version $pkg_config_args; then

    57 	  :

    58     else

    59 	  no_glib=yes

    60     fi

    61   fi

    62 

    63   if test x"$no_glib" = x ; then

    64     GLIB_GENMARSHAL=`$PKG_CONFIG --variable=glib_genmarshal glib-2.0`

    65     GOBJECT_QUERY=`$PKG_CONFIG --variable=gobject_query glib-2.0`

    66     GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`

    67     GLIB_COMPILE_RESOURCES=`$PKG_CONFIG --variable=glib_compile_resources gio-2.0`

    68 

    69     GLIB_CFLAGS=`$PKG_CONFIG --cflags $pkg_config_args`

    70     GLIB_LIBS=`$PKG_CONFIG --libs $pkg_config_args`

    71     glib_config_major_version=`$PKG_CONFIG --modversion glib-2.0 | \

    72            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`

    73     glib_config_minor_version=`$PKG_CONFIG --modversion glib-2.0 | \

    74            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`

    75     glib_config_micro_version=`$PKG_CONFIG --modversion glib-2.0 | \

    76            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`

    77     if test "x$enable_glibtest" = "xyes" ; then

    78       ac_save_CFLAGS="$CFLAGS"

    79       ac_save_LIBS="$LIBS"

    80       CFLAGS="$CFLAGS $GLIB_CFLAGS"

    81       LIBS="$GLIB_LIBS $LIBS"

    82 dnl

    83 dnl Now check if the installed GLIB is sufficiently new. (Also sanity

    84 dnl checks the results of pkg-config to some extent)

    85 dnl

    86       rm -f conf.glibtest

    87       AC_TRY_RUN([

    88 #include <glib.h>

    89 #include <stdio.h>

    90 #include <stdlib.h>

    91 

    92 int 

    93 main ()

    94 {

    95   unsigned int major, minor, micro;

    96   char *tmp_version;

    97 

    98   fclose (fopen ("conf.glibtest", "w"));

    99 

   100   /* HP/UX 9 (%@#!) writes to sscanf strings */

   101   tmp_version = g_strdup("$min_glib_version");

   102   if (sscanf(tmp_version, "%u.%u.%u", &major, &minor, &micro) != 3) {

   103      printf("%s, bad version string\n", "$min_glib_version");

   104      exit(1);

   105    }

   106 

   107   if ((glib_major_version != $glib_config_major_version) ||

   108       (glib_minor_version != $glib_config_minor_version) ||

   109       (glib_micro_version != $glib_config_micro_version))

   110     {

   111       printf("\n*** 'pkg-config --modversion glib-2.0' returned %d.%d.%d, but GLIB (%d.%d.%d)\n", 

   112              $glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,

   113              glib_major_version, glib_minor_version, glib_micro_version);

   114       printf ("*** was found! If pkg-config was correct, then it is best\n");

   115       printf ("*** to remove the old version of GLib. You may also be able to fix the error\n");

   116       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");

   117       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");

   118       printf("*** required on your system.\n");

   119       printf("*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH\n");

   120       printf("*** to point to the correct configuration files\n");

   121     } 

   122   else if ((glib_major_version != GLIB_MAJOR_VERSION) ||

   123 	   (glib_minor_version != GLIB_MINOR_VERSION) ||

   124            (glib_micro_version != GLIB_MICRO_VERSION))

   125     {

   126       printf("*** GLIB header files (version %d.%d.%d) do not match\n",

   127 	     GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);

   128       printf("*** library (version %d.%d.%d)\n",

   129 	     glib_major_version, glib_minor_version, glib_micro_version);

   130     }

   131   else

   132     {

   133       if ((glib_major_version > major) ||

   134         ((glib_major_version == major) && (glib_minor_version > minor)) ||

   135         ((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))

   136       {

   137         return 0;

   138        }

   139      else

   140       {

   141         printf("\n*** An old version of GLIB (%u.%u.%u) was found.\n",

   142                glib_major_version, glib_minor_version, glib_micro_version);

   143         printf("*** You need a version of GLIB newer than %u.%u.%u. The latest version of\n",

   144 	       major, minor, micro);

   145         printf("*** GLIB is always available from ftp://ftp.gtk.org.\n");

   146         printf("***\n");

   147         printf("*** If you have already installed a sufficiently new version, this error\n");

   148         printf("*** probably means that the wrong copy of the pkg-config shell script is\n");

   149         printf("*** being found. The easiest way to fix this is to remove the old version\n");

   150         printf("*** of GLIB, but you can also set the PKG_CONFIG environment to point to the\n");

   151         printf("*** correct copy of pkg-config. (In this case, you will have to\n");

   152         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");

   153         printf("*** so that the correct libraries are found at run-time))\n");

   154       }

   155     }

   156   return 1;

   157 }

   158 ],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])

   159        CFLAGS="$ac_save_CFLAGS"

   160        LIBS="$ac_save_LIBS"

   161      fi

   162   fi

   163   if test "x$no_glib" = x ; then

   164      AC_MSG_RESULT(yes (version $glib_config_major_version.$glib_config_minor_version.$glib_config_micro_version))

   165      ifelse([$2], , :, [$2])     

   166   else

   167      AC_MSG_RESULT(no)

   168      if test "$PKG_CONFIG" = "no" ; then

   169        echo "*** A new enough version of pkg-config was not found."

   170        echo "*** See http://www.freedesktop.org/software/pkgconfig/"

   171      else

   172        if test -f conf.glibtest ; then

   173         :

   174        else

   175           echo "*** Could not run GLIB test program, checking why..."

   176           ac_save_CFLAGS="$CFLAGS"

   177           ac_save_LIBS="$LIBS"

   178           CFLAGS="$CFLAGS $GLIB_CFLAGS"

   179           LIBS="$LIBS $GLIB_LIBS"

   180           AC_TRY_LINK([

   181 #include <glib.h>

   182 #include <stdio.h>

   183 ],      [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],

   184         [ echo "*** The test program compiled, but did not run. This usually means"

   185           echo "*** that the run-time linker is not finding GLIB or finding the wrong"

   186           echo "*** version of GLIB. If it is not finding GLIB, you'll need to set your"

   187           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"

   188           echo "*** to the installed location  Also, make sure you have run ldconfig if that"

   189           echo "*** is required on your system"

   190 	  echo "***"

   191           echo "*** If you have an old version installed, it is best to remove it, although"

   192           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],

   193         [ echo "*** The test program failed to compile or link. See the file config.log for the"

   194           echo "*** exact error that occured. This usually means GLIB is incorrectly installed."])

   195           CFLAGS="$ac_save_CFLAGS"

   196           LIBS="$ac_save_LIBS"

   197        fi

   198      fi

   199      GLIB_CFLAGS=""

   200      GLIB_LIBS=""

   201      GLIB_GENMARSHAL=""

   202      GOBJECT_QUERY=""

   203      GLIB_MKENUMS=""

   204      GLIB_COMPILE_RESOURCES=""

   205      ifelse([$3], , :, [$3])

   206   fi

   207   AC_SUBST(GLIB_CFLAGS)

   208   AC_SUBST(GLIB_LIBS)

   209   AC_SUBST(GLIB_GENMARSHAL)

   210   AC_SUBST(GOBJECT_QUERY)

   211   AC_SUBST(GLIB_MKENUMS)

   212   AC_SUBST(GLIB_COMPILE_RESOURCES)

   213   rm -f conf.glibtest

   214 ])