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  1. dnl aclocal.m4 generated automatically by aclocal 1.4
  2.  
  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.
  7.  
  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.
  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.  
  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
  22. dnl
  23. AC_DEFUN(AM_PATH_SDL,
  24. [dnl
  25. dnl Get the cflags and libraries from the sdl-config script
  26. dnl
  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],
  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 $SDL_LIBS"
  68. dnl
  69. dnl Now check if the installed SDL is sufficiently new. (Also sanity
  70. dnl checks the results of sdl-config to some extent
  71. dnl
  72.       rm -f conf.sdltest
  73.       AC_TRY_RUN([
  74. #include <stdio.h>
  75. #include <stdlib.h>
  76. #include <string.h>
  77. #include "SDL.h"
  78.  
  79. char*
  80. my_strdup (char *str)
  81. {
  82.   char *new_str;
  83.  
  84.   if (str)
  85.     {
  86.       new_str = malloc ((strlen (str) + 1) * sizeof(char));
  87.       strcpy (new_str, str);
  88.     }
  89.   else
  90.     new_str = NULL;
  91.  
  92.   return new_str;
  93. }
  94.  
  95. int main ()
  96. {
  97.   int major, minor, micro;
  98.   char *tmp_version;
  99.  
  100.   system ("touch conf.sdltest");
  101.  
  102.   /* HP/UX 9 (%@#!) writes to sscanf strings */
  103.   tmp_version = my_strdup("$min_sdl_version");
  104.   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
  105.      printf("%s, bad version string\n", "$min_sdl_version");
  106.      exit(1);
  107.    }
  108.  
  109.    if (($sdl_major_version > major) ||
  110.       (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
  111.       (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
  112.     {
  113.       return 0;
  114.     }
  115.   else
  116.     {
  117.       printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
  118.       printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
  119.       printf("*** best to upgrade to the required version.\n");
  120.       printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
  121.       printf("*** to point to the correct copy of sdl-config, and remove the file\n");
  122.       printf("*** config.cache before re-running configure\n");
  123.       return 1;
  124.     }
  125. }
  126.  
  127. ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
  128.        CFLAGS="$ac_save_CFLAGS"
  129.        LIBS="$ac_save_LIBS"
  130.      fi
  131.   fi
  132.   if test "x$no_sdl" = x ; then
  133.      AC_MSG_RESULT(yes)
  134.      ifelse([$2], , :, [$2])    
  135.   else
  136.      AC_MSG_RESULT(no)
  137.      if test "$SDL_CONFIG" = "no" ; then
  138.        echo "*** The sdl-config script installed by SDL could not be found"
  139.        echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
  140.        echo "*** your path, or set the SDL_CONFIG environment variable to the"
  141.        echo "*** full path to sdl-config."
  142.      else
  143.        if test -f conf.sdltest ; then
  144.         :
  145.        else
  146.           echo "*** Could not run SDL test program, checking why..."
  147.           CFLAGS="$CFLAGS $SDL_CFLAGS"
  148.           LIBS="$LIBS $SDL_LIBS"
  149.           AC_TRY_LINK([
  150. #include <stdio.h>
  151. #include "SDL.h"
  152. ],      [ return 0; ],
  153.         [ echo "*** The test program compiled, but did not run. This usually means"
  154.           echo "*** that the run-time linker is not finding SDL or finding the wrong"
  155.           echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
  156.           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
  157.           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
  158.           echo "*** is required on your system"
  159.           echo "***"
  160.           echo "*** If you have an old version installed, it is best to remove it, although"
  161.           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
  162.         [ echo "*** The test program failed to compile or link. See the file config.log for the"
  163.           echo "*** exact error that occured. This usually means SDL was incorrectly installed"
  164.           echo "*** or that you have moved SDL since it was installed. In the latter case, you"
  165.           echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
  166.           CFLAGS="$ac_save_CFLAGS"
  167.           LIBS="$ac_save_LIBS"
  168.        fi
  169.      fi
  170.      SDL_CFLAGS=""
  171.      SDL_LIBS=""
  172.      ifelse([$3], , :, [$3])
  173.   fi
  174.   AC_SUBST(SDL_CFLAGS)
  175.   AC_SUBST(SDL_LIBS)
  176.   rm -f conf.sdltest
  177. ])
  178.  
  179. # Do all the work for Automake.  This macro actually does too much --
  180. # some checks are only needed if your package does certain things.
  181. # But this isn't really a big deal.
  182.  
  183. # serial 1
  184.  
  185. dnl Usage:
  186. dnl AM_INIT_AUTOMAKE(package,version, [no-define])
  187.  
  188. AC_DEFUN(AM_INIT_AUTOMAKE,
  189. [AC_REQUIRE([AC_PROG_INSTALL])
  190. PACKAGE=[$1]
  191. AC_SUBST(PACKAGE)
  192. VERSION=[$2]
  193. AC_SUBST(VERSION)
  194. dnl test to see if srcdir already configured
  195. if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
  196.   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  197. fi
  198. ifelse([$3],,
  199. AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
  200. AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
  201. AC_REQUIRE([AM_SANITY_CHECK])
  202. AC_REQUIRE([AC_ARG_PROGRAM])
  203. dnl FIXME This is truly gross.
  204. missing_dir=`cd $ac_aux_dir && pwd`
  205. AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
  206. AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
  207. AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
  208. AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
  209. AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
  210. AC_REQUIRE([AC_PROG_MAKE_SET])])
  211.  
  212. #
  213. # Check to make sure that the build environment is sane.
  214. #
  215.  
  216. AC_DEFUN(AM_SANITY_CHECK,
  217. [AC_MSG_CHECKING([whether build environment is sane])
  218. # Just in case
  219. sleep 1
  220. echo timestamp > conftestfile
  221. # Do `set' in a subshell so we don't clobber the current shell's
  222. # arguments.  Must try -L first in case configure is actually a
  223. # symlink; some systems play weird games with the mod time of symlinks
  224. # (eg FreeBSD returns the mod time of the symlink's containing
  225. # directory).
  226. if (
  227.    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
  228.    if test "[$]*" = "X"; then
  229.       # -L didn't work.
  230.       set X `ls -t $srcdir/configure conftestfile`
  231.    fi
  232.    if test "[$]*" != "X $srcdir/configure conftestfile" \
  233.       && test "[$]*" != "X conftestfile $srcdir/configure"; then
  234.  
  235.       # If neither matched, then we have a broken ls.  This can happen
  236.       # if, for instance, CONFIG_SHELL is bash and it inherits a
  237.       # broken ls alias from the environment.  This has actually
  238.       # happened.  Such a system could not be considered "sane".
  239.       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  240. alias in your environment])
  241.    fi
  242.  
  243.    test "[$]2" = conftestfile
  244.    )
  245. then
  246.    # Ok.
  247.    :
  248. else
  249.    AC_MSG_ERROR([newly created file is older than distributed files!
  250. Check your system clock])
  251. fi
  252. rm -f conftest*
  253. AC_MSG_RESULT(yes)])
  254.  
  255. dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
  256. dnl The program must properly implement --version.
  257. AC_DEFUN(AM_MISSING_PROG,
  258. [AC_MSG_CHECKING(for working $2)
  259. # Run test in a subshell; some versions of sh will print an error if
  260. # an executable is not found, even if stderr is redirected.
  261. # Redirect stdin to placate older versions of autoconf.  Sigh.
  262. if ($2 --version) < /dev/null > /dev/null 2>&1; then
  263.    $1=$2
  264.    AC_MSG_RESULT(found)
  265. else
  266.    $1="$3/missing $2"
  267.    AC_MSG_RESULT(missing)
  268. fi
  269. AC_SUBST($1)])
  270.  
  271.