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