1dnl aclocal.m4 generated automatically by aclocal 1.4
2
3dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4dnl This file is free software; the Free Software Foundation
5dnl gives unlimited permission to copy and/or distribute it,
6dnl with or without modifications, as long as this notice is preserved.
7
8dnl This program is distributed in the hope that it will be useful,
9dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11dnl PARTICULAR PURPOSE.
12
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
19
20dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
21dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
22dnl
23AC_DEFUN(AM_PATH_SDL,
24[dnl
25dnl Get the cflags and libraries from the sdl-config script
26dnl
27AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
28            sdl_prefix="$withval", sdl_prefix="")
29AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
30            sdl_exec_prefix="$withval", sdl_exec_prefix="")
31AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
32		    , enable_sdltest=yes)
33
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=$sdl_exec_prefix/bin/sdl-config
38     fi
39  fi
40  if test x$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
44     fi
45  fi
46
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 >= $min_sdl_version)
50  no_sdl=""
51  if test "$SDL_CONFIG" = "no" ; then
52    no_sdl=yes
53  else
54    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
55    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
56
57    sdl_major_version=`$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"
65      ac_save_LIBS="$LIBS"
66      CFLAGS="$CFLAGS $SDL_CFLAGS"
67      LIBS="$LIBS $SDL_LIBS"
68dnl
69dnl Now check if the installed SDL is sufficiently new. (Also sanity
70dnl checks the results of sdl-config to some extent
71dnl
72      rm -f conf.sdltest
73      AC_TRY_RUN([
74#include <stdio.h>
75#include <stdlib.h>
76#include <string.h>
77#include "SDL.h"
78
79char*
80my_strdup (char *str)
81{
82  char *new_str;
83
84  if (str)
85    {
86      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
87      strcpy (new_str, str);
88    }
89  else
90    new_str = NULL;
91
92  return new_str;
93}
94
95int main (int argc, char *argv[])
96{
97  int major, minor, micro;
98  char *tmp_version;
99
100  /* This hangs on some systems (?)
101  system ("touch conf.sdltest");
102  */
103  { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
104
105  /* HP/UX 9 (%@#!) writes to sscanf strings */
106  tmp_version = my_strdup("$min_sdl_version");
107  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
108     printf("%s, bad version string\n", "$min_sdl_version");
109     exit(1);
110   }
111
112   if (($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)))
115    {
116      return 0;
117    }
118  else
119    {
120      return 1;
121    }
122}
123
124],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
125       CFLAGS="$ac_save_CFLAGS"
126       LIBS="$ac_save_LIBS"
127     fi
128  fi
129  if test "x$no_sdl" = x ; then
130     AC_MSG_RESULT(yes)
131     ifelse([$2], , :, [$2])
132  else
133     AC_MSG_RESULT(no)
134     if test "$SDL_CONFIG" = "no" ; then
135       echo "*** The sdl-config script installed by SDL could not be found"
136       echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
137       echo "*** your path, or set the SDL_CONFIG environment variable to the"
138       echo "*** full path to sdl-config."
139     else
140       if test -f conf.sdltest ; then
141        :
142       else
143          echo "*** Could not run SDL test program, checking why..."
144          CFLAGS="$CFLAGS $SDL_CFLAGS"
145          LIBS="$LIBS $SDL_LIBS"
146          AC_TRY_LINK([
147#include <stdio.h>
148#include "SDL.h"
149],      [ return 0; ],
150        [ echo "*** The test program compiled, but did not run. This usually means"
151          echo "*** that the run-time linker is not finding SDL or finding the wrong"
152          echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
153          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
154          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
155          echo "*** is required on your system"
156	  echo "***"
157          echo "*** If you have an old version installed, it is best to remove it, although"
158          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
159        [ echo "*** The test program failed to compile or link. See the file config.log for the"
160          echo "*** exact error that occured. This usually means SDL was incorrectly installed"
161          echo "*** or that you have moved SDL since it was installed. In the latter case, you"
162          echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
163          CFLAGS="$ac_save_CFLAGS"
164          LIBS="$ac_save_LIBS"
165       fi
166     fi
167     SDL_CFLAGS=""
168     SDL_LIBS=""
169     ifelse([$3], , :, [$3])
170  fi
171  AC_SUBST(SDL_CFLAGS)
172  AC_SUBST(SDL_LIBS)
173  rm -f conf.sdltest
174])
175
176# Like AC_CONFIG_HEADER, but automatically create stamp file.
177
178AC_DEFUN(AM_CONFIG_HEADER,
179[AC_PREREQ([2.12])
180AC_CONFIG_HEADER([$1])
181dnl When config.status generates a header, we must update the stamp-h file.
182dnl This file resides in the same directory as the config header
183dnl that is generated.  We must strip everything past the first ":",
184dnl and everything past the last "/".
185AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
186ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
187<<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
188<<am_indx=1
189for am_file in <<$1>>; do
190  case " <<$>>CONFIG_HEADERS " in
191  *" <<$>>am_file "*<<)>>
192    echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
193    ;;
194  esac
195  am_indx=`expr "<<$>>am_indx" + 1`
196done<<>>dnl>>)
197changequote([,]))])
198
199# Do all the work for Automake.  This macro actually does too much --
200# some checks are only needed if your package does certain things.
201# But this isn't really a big deal.
202
203# serial 1
204
205dnl Usage:
206dnl AM_INIT_AUTOMAKE(package,version, [no-define])
207
208AC_DEFUN(AM_INIT_AUTOMAKE,
209[AC_REQUIRE([AC_PROG_INSTALL])
210PACKAGE=[$1]
211AC_SUBST(PACKAGE)
212VERSION=[$2]
213AC_SUBST(VERSION)
214dnl test to see if srcdir already configured
215if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
216  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
217fi
218ifelse([$3],,
219AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
220AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
221AC_REQUIRE([AM_SANITY_CHECK])
222AC_REQUIRE([AC_ARG_PROGRAM])
223dnl FIXME This is truly gross.
224missing_dir=`cd $ac_aux_dir && pwd`
225AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
226AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
227AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
228AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
229AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
230AC_REQUIRE([AC_PROG_MAKE_SET])])
231
232#
233# Check to make sure that the build environment is sane.
234#
235
236AC_DEFUN(AM_SANITY_CHECK,
237[AC_MSG_CHECKING([whether build environment is sane])
238# Just in case
239sleep 1
240echo timestamp > conftestfile
241# Do `set' in a subshell so we don't clobber the current shell's
242# arguments.  Must try -L first in case configure is actually a
243# symlink; some systems play weird games with the mod time of symlinks
244# (eg FreeBSD returns the mod time of the symlink's containing
245# directory).
246if (
247   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
248   if test "[$]*" = "X"; then
249      # -L didn't work.
250      set X `ls -t $srcdir/configure conftestfile`
251   fi
252   if test "[$]*" != "X $srcdir/configure conftestfile" \
253      && test "[$]*" != "X conftestfile $srcdir/configure"; then
254
255      # If neither matched, then we have a broken ls.  This can happen
256      # if, for instance, CONFIG_SHELL is bash and it inherits a
257      # broken ls alias from the environment.  This has actually
258      # happened.  Such a system could not be considered "sane".
259      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
260alias in your environment])
261   fi
262
263   test "[$]2" = conftestfile
264   )
265then
266   # Ok.
267   :
268else
269   AC_MSG_ERROR([newly created file is older than distributed files!
270Check your system clock])
271fi
272rm -f conftest*
273AC_MSG_RESULT(yes)])
274
275dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
276dnl The program must properly implement --version.
277AC_DEFUN(AM_MISSING_PROG,
278[AC_MSG_CHECKING(for working $2)
279# Run test in a subshell; some versions of sh will print an error if
280# an executable is not found, even if stderr is redirected.
281# Redirect stdin to placate older versions of autoconf.  Sigh.
282if ($2 --version) < /dev/null > /dev/null 2>&1; then
283   $1=$2
284   AC_MSG_RESULT(found)
285else
286   $1="$3/missing $2"
287   AC_MSG_RESULT(missing)
288fi
289AC_SUBST($1)])
290
291