dnl aclocal.m4 generated automatically by aclocal 1.4dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.dnl This file is free software; the Free Software Foundationdnl gives unlimited permission to copy and/or distribute it,dnl with or without modifications, as long as this notice is preserved.dnl This program is distributed in the hope that it will be useful,dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; withoutdnl even the implied warranty of MERCHANTABILITY or FITNESS FOR Adnl PARTICULAR PURPOSE.# Configure paths for SDL# Sam Lantinga 9/21/99# stolen from Manish Singh# stolen back from Frank Belew# stolen from Manish Singh# Shamelessly stolen from Owen Taylordnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBSdnlAC_DEFUN(AM_PATH_SDL,[dnl dnl Get the cflags and libraries from the sdl-config scriptdnlAC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],            sdl_prefix="$withval", sdl_prefix="")AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],            sdl_exec_prefix="$withval", sdl_exec_prefix="")AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],		    , enable_sdltest=yes)  if test x$sdl_exec_prefix != x ; then     sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"     if test x${SDL_CONFIG+set} != xset ; then        SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config     fi  fi  if test x$sdl_prefix != x ; then     sdl_args="$sdl_args --prefix=$sdl_prefix"     if test x${SDL_CONFIG+set} != xset ; then        SDL_CONFIG=$sdl_prefix/bin/sdl-config     fi  fi  AC_PATH_PROG(SDL_CONFIG, sdl-config, no)  min_sdl_version=ifelse([$1], ,0.11.0,$1)  AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)  no_sdl=""  if test "$SDL_CONFIG" = "no" ; then    no_sdl=yes  else    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`    sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`    if test "x$enable_sdltest" = "xyes" ; then      ac_save_CFLAGS="$CFLAGS"      ac_save_LIBS="$LIBS"      CFLAGS="$CFLAGS $SDL_CFLAGS"      LIBS="$LIBS $SDL_LIBS"dnldnl Now check if the installed SDL is sufficiently new. (Also sanitydnl checks the results of sdl-config to some extentdnl      rm -f conf.sdltest      AC_TRY_RUN([#include <stdio.h>#include <stdlib.h>#include <string.h>#include "SDL.h"char*my_strdup (char *str){  char *new_str;    if (str)    {      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));      strcpy (new_str, str);    }  else    new_str = NULL;    return new_str;}int main (int argc, char *argv[]){  int major, minor, micro;  char *tmp_version;  /* This hangs on some systems (?)  system ("touch conf.sdltest");  */  { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }  /* HP/UX 9 (%@#!) writes to sscanf strings */  tmp_version = my_strdup("$min_sdl_version");  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {     printf("%s, bad version string\n", "$min_sdl_version");     exit(1);   }   if (($sdl_major_version > major) ||      (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||      (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))    {      return 0;    }  else    {      printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);      printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);      printf("*** best to upgrade to the required version.\n");      printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");      printf("*** to point to the correct copy of sdl-config, and remove the file\n");      printf("*** config.cache before re-running configure\n");      return 1;    }}],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])       CFLAGS="$ac_save_CFLAGS"       LIBS="$ac_save_LIBS"     fi  fi  if test "x$no_sdl" = x ; then     AC_MSG_RESULT(yes)     ifelse([$2], , :, [$2])       else     AC_MSG_RESULT(no)     if test "$SDL_CONFIG" = "no" ; then       echo "*** The sdl-config script installed by SDL could not be found"       echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"       echo "*** your path, or set the SDL_CONFIG environment variable to the"       echo "*** full path to sdl-config."     else       if test -f conf.sdltest ; then        :       else          echo "*** Could not run SDL test program, checking why..."          CFLAGS="$CFLAGS $SDL_CFLAGS"          LIBS="$LIBS $SDL_LIBS"          AC_TRY_LINK([#include <stdio.h>#include "SDL.h"],      [ return 0; ],        [ echo "*** The test program compiled, but did not run. This usually means"          echo "*** that the run-time linker is not finding SDL or finding the wrong"          echo "*** version of SDL. If it is not finding SDL, you'll need to set your"          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"          echo "*** to the installed location  Also, make sure you have run ldconfig if that"          echo "*** is required on your system"	  echo "***"          echo "*** If you have an old version installed, it is best to remove it, although"          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],        [ echo "*** The test program failed to compile or link. See the file config.log for the"          echo "*** exact error that occured. This usually means SDL was incorrectly installed"          echo "*** or that you have moved SDL since it was installed. In the latter case, you"          echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])          CFLAGS="$ac_save_CFLAGS"          LIBS="$ac_save_LIBS"       fi     fi     SDL_CFLAGS=""     SDL_LIBS=""     ifelse([$3], , :, [$3])  fi  AC_SUBST(SDL_CFLAGS)  AC_SUBST(SDL_LIBS)  rm -f conf.sdltest])# Do all the work for Automake.  This macro actually does too much --# some checks are only needed if your package does certain things.# But this isn't really a big deal.# serial 1dnl Usage:dnl AM_INIT_AUTOMAKE(package,version, [no-define])AC_DEFUN(AM_INIT_AUTOMAKE,[AC_REQUIRE([AC_PROG_INSTALL])PACKAGE=[$1]AC_SUBST(PACKAGE)VERSION=[$2]AC_SUBST(VERSION)dnl test to see if srcdir already configuredif test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])fiifelse([$3],,AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))AC_REQUIRE([AM_SANITY_CHECK])AC_REQUIRE([AC_ARG_PROGRAM])dnl FIXME This is truly gross.missing_dir=`cd $ac_aux_dir && pwd`AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)AC_REQUIRE([AC_PROG_MAKE_SET])])## Check to make sure that the build environment is sane.#AC_DEFUN(AM_SANITY_CHECK,[AC_MSG_CHECKING([whether build environment is sane])# Just in casesleep 1echo timestamp > conftestfile# Do `set' in a subshell so we don't clobber the current shell's# arguments.  Must try -L first in case configure is actually a# symlink; some systems play weird games with the mod time of symlinks# (eg FreeBSD returns the mod time of the symlink's containing# directory).if (   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`   if test "[$]*" = "X"; then      # -L didn't work.      set X `ls -t $srcdir/configure conftestfile`   fi   if test "[$]*" != "X $srcdir/configure conftestfile" \      && test "[$]*" != "X conftestfile $srcdir/configure"; then      # If neither matched, then we have a broken ls.  This can happen      # if, for instance, CONFIG_SHELL is bash and it inherits a      # broken ls alias from the environment.  This has actually      # happened.  Such a system could not be considered "sane".      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a brokenalias in your environment])   fi   test "[$]2" = conftestfile   )then   # Ok.   :else   AC_MSG_ERROR([newly created file is older than distributed files!Check your system clock])firm -f conftest*AC_MSG_RESULT(yes)])dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)dnl The program must properly implement --version.AC_DEFUN(AM_MISSING_PROG,[AC_MSG_CHECKING(for working $2)# Run test in a subshell; some versions of sh will print an error if# an executable is not found, even if stderr is redirected.# Redirect stdin to placate older versions of autoconf.  Sigh.if ($2 --version) < /dev/null > /dev/null 2>&1; then   $1=$2   AC_MSG_RESULT(found)else   $1="$3/missing $2"   AC_MSG_RESULT(missing)fiAC_SUBST($1)])