1 dnl aclocal.m4 generated automatically by aclocal 1.4
3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl This program is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11 dnl PARTICULAR PURPOSE.
13 # Configure paths for SDL
14 # Sam Lantinga 9/21/99
15 # stolen from Manish Singh
16 # stolen back from Frank Belew
17 # stolen from Manish Singh
18 # Shamelessly stolen from Owen Taylor
20 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
21 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
25 dnl Get the cflags and libraries from the sdl-config script
27 AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)],
28 sdl_prefix="$withval", sdl_prefix="")
29 AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
30 sdl_exec_prefix="$withval", sdl_exec_prefix="")
31 AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program],
34 if test x$sdl_exec_prefix != x ; then
35 sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
36 if test x${SDL_CONFIG+set} != xset ; then
37 SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
40 if test x$sdl_prefix != x ; then
41 sdl_args="$sdl_args --prefix=$sdl_prefix"
42 if test x${SDL_CONFIG+set} != xset ; then
43 SDL_CONFIG=$sdl_prefix/bin/sdl-config
47 AC_PATH_PROG(SDL_CONFIG, sdl-config, no)
48 min_sdl_version=ifelse([$1], ,0.11.0,$1)
49 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
51 if test "$SDL_CONFIG" = "no" ; then
54 SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
55 SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
57 sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
58 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
59 sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
60 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
61 sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
62 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
63 if test "x$enable_sdltest" = "xyes" ; then
64 ac_save_CFLAGS="$CFLAGS"
66 CFLAGS="$CFLAGS $SDL_CFLAGS"
67 LIBS="$LIBS $SDL_LIBS"
69 dnl Now check if the installed SDL is sufficiently new. (Also sanity
70 dnl checks the results of sdl-config to some extent
86 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
87 strcpy (new_str, str);
95 int main (int argc, char *argv[])
97 int major, minor, micro;
100 /* This hangs on some systems (?)
101 system ("touch conf.sdltest");
103 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
105 /* HP/UX 9 (%@#!) writes to sscanf strings */
106 tmp_version = my_strdup("$min_sdl_version");
107 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
108 printf("%s, bad version string\n", "$min_sdl_version");
112 if (($sdl_major_version > major) ||
113 (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
114 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
120 printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
121 printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
122 printf("*** best to upgrade to the required version.\n");
123 printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
124 printf("*** to point to the correct copy of sdl-config, and remove the file\n");
125 printf("*** config.cache before re-running configure\n");
130 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
131 CFLAGS="$ac_save_CFLAGS"
135 if test "x$no_sdl" = x ; then
137 ifelse([$2], , :, [$2])
140 if test "$SDL_CONFIG" = "no" ; then
141 echo "*** The sdl-config script installed by SDL could not be found"
142 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
143 echo "*** your path, or set the SDL_CONFIG environment variable to the"
144 echo "*** full path to sdl-config."
146 if test -f conf.sdltest ; then
149 echo "*** Could not run SDL test program, checking why..."
150 CFLAGS="$CFLAGS $SDL_CFLAGS"
151 LIBS="$LIBS $SDL_LIBS"
156 [ echo "*** The test program compiled, but did not run. This usually means"
157 echo "*** that the run-time linker is not finding SDL or finding the wrong"
158 echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
159 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
160 echo "*** to the installed location Also, make sure you have run ldconfig if that"
161 echo "*** is required on your system"
163 echo "*** If you have an old version installed, it is best to remove it, although"
164 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
165 [ echo "*** The test program failed to compile or link. See the file config.log for the"
166 echo "*** exact error that occured. This usually means SDL was incorrectly installed"
167 echo "*** or that you have moved SDL since it was installed. In the latter case, you"
168 echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
169 CFLAGS="$ac_save_CFLAGS"
175 ifelse([$3], , :, [$3])