1# Configure paths for GTK+
2# Owen Taylor     97-11-3
3
4dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
5dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
6dnl
7AC_DEFUN([AM_PATH_GTK],
8[dnl
9dnl Get the cflags and libraries from the gtk-config script
10dnl
11AC_ARG_WITH(gtk-prefix,
12	    AS_HELP_STRING([--with-gtk-prefix=PFX],
13	    		   [Prefix where GTK is installed (optional)]),
14            [gtk_config_prefix="$withval"], [gtk_config_prefix=""])
15AC_ARG_WITH(gtk-exec-prefix,
16	    AS_HELP_STRING([--with-gtk-exec-prefix=PFX],
17	    		   [Exec prefix where GTK is installed (optional)]),
18	    [gtk_config_exec_prefix="$withval"], [gtk_config_exec_prefix=""])
19AC_ARG_ENABLE(gtktest,
20	      AS_HELP_STRING([--disable-gtktest],
21	      		     [Do not try to compile and run a test GTK program]),
22	      , [enable_gtktest=yes])
23
24  for module in . $4
25  do
26      case "$module" in
27         gthread)
28             gtk_config_args="$gtk_config_args gthread"
29         ;;
30      esac
31  done
32
33  if test x$gtk_config_exec_prefix != x ; then
34     gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
35     if test x${GTK_CONFIG+set} != xset ; then
36        GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
37     fi
38  fi
39  if test x$gtk_config_prefix != x ; then
40     gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
41     if test x${GTK_CONFIG+set} != xset ; then
42        GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
43     fi
44  fi
45
46  AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
47  min_gtk_version=ifelse([$1], ,0.99.7,$1)
48  AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
49  no_gtk=""
50  if test "$GTK_CONFIG" = "no" ; then
51    no_gtk=yes
52  else
53    GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
54    GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
55    gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
56           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
57    gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
58           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
59    gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
60           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
61    if test "x$enable_gtktest" = "xyes" ; then
62      ac_save_CFLAGS="$CFLAGS"
63      ac_save_LIBS="$LIBS"
64      CFLAGS="$CFLAGS $GTK_CFLAGS"
65      LIBS="$GTK_LIBS $LIBS"
66dnl
67dnl Now check if the installed GTK is sufficiently new. (Also sanity
68dnl checks the results of gtk-config to some extent
69dnl
70      rm -f conf.gtktest
71      AC_TRY_RUN([
72#include <gtk/gtk.h>
73#include <stdio.h>
74#include <stdlib.h>
75
76int
77main ()
78{
79  int major, minor, micro;
80  char *tmp_version;
81
82  system ("touch conf.gtktest");
83
84  /* HP/UX 9 (%@#!) writes to sscanf strings */
85  tmp_version = g_strdup("$min_gtk_version");
86  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
87     printf("%s, bad version string\n", "$min_gtk_version");
88     exit(1);
89   }
90
91  if ((gtk_major_version != $gtk_config_major_version) ||
92      (gtk_minor_version != $gtk_config_minor_version) ||
93      (gtk_micro_version != $gtk_config_micro_version))
94    {
95      printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
96             $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
97             gtk_major_version, gtk_minor_version, gtk_micro_version);
98      printf ("*** was found! If gtk-config was correct, then it is best\n");
99      printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
100      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
101      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
102      printf("*** required on your system.\n");
103      printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
104      printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
105      printf("*** before re-running configure\n");
106    }
107#if defined (GTK_MAJOR_VERSION) && defined (GTK_MINOR_VERSION) && defined (GTK_MICRO_VERSION)
108  else if ((gtk_major_version != GTK_MAJOR_VERSION) ||
109	   (gtk_minor_version != GTK_MINOR_VERSION) ||
110           (gtk_micro_version != GTK_MICRO_VERSION))
111    {
112      printf("*** GTK+ header files (version %d.%d.%d) do not match\n",
113	     GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);
114      printf("*** library (version %d.%d.%d)\n",
115	     gtk_major_version, gtk_minor_version, gtk_micro_version);
116    }
117#endif /* defined (GTK_MAJOR_VERSION) ... */
118  else
119    {
120      if ((gtk_major_version > major) ||
121        ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
122        ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
123      {
124        return 0;
125       }
126     else
127      {
128        printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
129               gtk_major_version, gtk_minor_version, gtk_micro_version);
130        printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
131	       major, minor, micro);
132        printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
133        printf("***\n");
134        printf("*** If you have already installed a sufficiently new version, this error\n");
135        printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
136        printf("*** being found. The easiest way to fix this is to remove the old version\n");
137        printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
138        printf("*** correct copy of gtk-config. (In this case, you will have to\n");
139        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
140        printf("*** so that the correct libraries are found at run-time))\n");
141      }
142    }
143  return 1;
144}
145],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
146       CFLAGS="$ac_save_CFLAGS"
147       LIBS="$ac_save_LIBS"
148     fi
149  fi
150  if test "x$no_gtk" = x ; then
151     AC_MSG_RESULT(yes)
152     ifelse([$2], , :, [$2])
153  else
154     AC_MSG_RESULT(no)
155     if test "$GTK_CONFIG" = "no" ; then
156       echo "*** The gtk-config script installed by GTK could not be found"
157       echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
158       echo "*** your path, or set the GTK_CONFIG environment variable to the"
159       echo "*** full path to gtk-config."
160     else
161       if test -f conf.gtktest ; then
162        :
163       else
164          echo "*** Could not run GTK test program, checking why..."
165          CFLAGS="$CFLAGS $GTK_CFLAGS"
166          LIBS="$LIBS $GTK_LIBS"
167          AC_TRY_LINK([
168#include <gtk/gtk.h>
169#include <stdio.h>
170],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
171        [ echo "*** The test program compiled, but did not run. This usually means"
172          echo "*** that the run-time linker is not finding GTK or finding the wrong"
173          echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
174          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
175          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
176          echo "*** is required on your system"
177	  echo "***"
178          echo "*** If you have an old version installed, it is best to remove it, although"
179          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
180          echo "***"
181          echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
182          echo "*** came with the system with the command"
183          echo "***"
184          echo "***    rpm --erase --nodeps gtk gtk-devel" ],
185        [ echo "*** The test program failed to compile or link. See the file config.log for the"
186          echo "*** exact error that occured. This usually means GTK was incorrectly installed"
187          echo "*** or that you have moved GTK since it was installed. In the latter case, you"
188          echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
189          CFLAGS="$ac_save_CFLAGS"
190          LIBS="$ac_save_LIBS"
191       fi
192     fi
193     GTK_CFLAGS=""
194     GTK_LIBS=""
195     ifelse([$3], , :, [$3])
196  fi
197  AC_SUBST(GTK_CFLAGS)
198  AC_SUBST(GTK_LIBS)
199  rm -f conf.gtktest
200])
201