/[pearpc]/sdl.m4
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
ViewVC logotype

Contents of /sdl.m4

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1 - (show annotations)
Wed Sep 5 17:11:21 2007 UTC (12 years ago) by dpavlin
File size: 6215 byte(s)
import upstream CVS
1 # Configure paths for SDL
2 # Sam Lantinga 9/21/99
3 # stolen from Manish Singh
4 # stolen back from Frank Belew
5 # stolen from Manish Singh
6 # Shamelessly stolen from Owen Taylor
7
8 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
9 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
10 dnl
11 AC_DEFUN([AM_PATH_SDL],
12 [dnl
13 dnl Get the cflags and libraries from the sdl-config script
14 dnl
15 AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)],
16 sdl_prefix="$withval", sdl_prefix="")
17 AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
18 sdl_exec_prefix="$withval", sdl_exec_prefix="")
19 AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program],
20 , enable_sdltest=yes)
21
22 if test x$sdl_exec_prefix != x ; then
23 sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
24 if test x${SDL_CONFIG+set} != xset ; then
25 SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
26 fi
27 fi
28 if test x$sdl_prefix != x ; then
29 sdl_args="$sdl_args --prefix=$sdl_prefix"
30 if test x${SDL_CONFIG+set} != xset ; then
31 SDL_CONFIG=$sdl_prefix/bin/sdl-config
32 fi
33 fi
34
35 AC_REQUIRE([AC_CANONICAL_TARGET])
36 PATH="$prefix/bin:$prefix/usr/bin:$PATH"
37 AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
38 min_sdl_version=ifelse([$1], ,0.11.0,$1)
39 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
40 no_sdl=""
41 if test "$SDL_CONFIG" = "no" ; then
42 no_sdl=yes
43 else
44 SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
45 SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
46
47 sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
48 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
49 sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
50 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
51 sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
52 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
53 if test "x$enable_sdltest" = "xyes" ; then
54 ac_save_CFLAGS="$CFLAGS"
55 ac_save_LIBS="$LIBS"
56 CFLAGS="$CFLAGS $SDL_CFLAGS"
57 LIBS="$LIBS $SDL_LIBS"
58 dnl
59 dnl Now check if the installed SDL is sufficiently new. (Also sanity
60 dnl checks the results of sdl-config to some extent
61 dnl
62 rm -f conf.sdltest
63 AC_TRY_RUN([
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67 #include "SDL.h"
68
69 char*
70 my_strdup (char *str)
71 {
72 char *new_str;
73
74 if (str)
75 {
76 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
77 strcpy (new_str, str);
78 }
79 else
80 new_str = NULL;
81
82 return new_str;
83 }
84
85 int main (int argc, char *argv[])
86 {
87 int major, minor, micro;
88 char *tmp_version;
89
90 /* This hangs on some systems (?)
91 system ("touch conf.sdltest");
92 */
93 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
94
95 /* HP/UX 9 (%@#!) writes to sscanf strings */
96 tmp_version = my_strdup("$min_sdl_version");
97 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
98 printf("%s, bad version string\n", "$min_sdl_version");
99 exit(1);
100 }
101
102 if (($sdl_major_version > major) ||
103 (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
104 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
105 {
106 return 0;
107 }
108 else
109 {
110 printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
111 printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
112 printf("*** best to upgrade to the required version.\n");
113 printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
114 printf("*** to point to the correct copy of sdl-config, and remove the file\n");
115 printf("*** config.cache before re-running configure\n");
116 return 1;
117 }
118 }
119
120 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
121 CFLAGS="$ac_save_CFLAGS"
122 LIBS="$ac_save_LIBS"
123 fi
124 fi
125 if test "x$no_sdl" = x ; then
126 AC_MSG_RESULT(yes)
127 ifelse([$2], , :, [$2])
128 else
129 AC_MSG_RESULT(no)
130 if test "$SDL_CONFIG" = "no" ; then
131 echo "*** The sdl-config script installed by SDL could not be found"
132 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
133 echo "*** your path, or set the SDL_CONFIG environment variable to the"
134 echo "*** full path to sdl-config."
135 else
136 if test -f conf.sdltest ; then
137 :
138 else
139 echo "*** Could not run SDL test program, checking why..."
140 CFLAGS="$CFLAGS $SDL_CFLAGS"
141 LIBS="$LIBS $SDL_LIBS"
142 AC_TRY_LINK([
143 #include <stdio.h>
144 #include "SDL.h"
145
146 int main(int argc, char *argv[])
147 { return 0; }
148 #undef main
149 #define main K_and_R_C_main
150 ], [ return 0; ],
151 [ echo "*** The test program compiled, but did not run. This usually means"
152 echo "*** that the run-time linker is not finding SDL or finding the wrong"
153 echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
154 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
155 echo "*** to the installed location Also, make sure you have run ldconfig if that"
156 echo "*** is required on your system"
157 echo "***"
158 echo "*** If you have an old version installed, it is best to remove it, although"
159 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
160 [ echo "*** The test program failed to compile or link. See the file config.log for the"
161 echo "*** exact error that occured. This usually means SDL was incorrectly installed"
162 echo "*** or that you have moved SDL since it was installed. In the latter case, you"
163 echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
164 CFLAGS="$ac_save_CFLAGS"
165 LIBS="$ac_save_LIBS"
166 fi
167 fi
168 SDL_CFLAGS=""
169 SDL_LIBS=""
170 ifelse([$3], , :, [$3])
171 fi
172 AC_SUBST(SDL_CFLAGS)
173 AC_SUBST(SDL_LIBS)
174 rm -f conf.sdltest
175 ])

  ViewVC Help
Powered by ViewVC 1.1.26