configure.in
author Sam Lantinga <slouken@libsdl.org>
Sun, 08 Nov 2009 18:40:07 +0000
changeset 474 a2c238c0c4b2
parent 469 5b6aac99ebf1
child 477 c44842cb1d90
permissions -rw-r--r--
Don't break binary compatibility!
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README)
     3 AC_CONFIG_AUX_DIRS($srcdir/build-scripts)
     4 
     5 dnl Set various version strings - taken gratefully from the GTk sources
     6 
     7 # Making releases:
     8 #   MICRO_VERSION += 1;
     9 #   INTERFACE_AGE += 1;
    10 #   BINARY_AGE += 1;
    11 # if any functions have been added, set INTERFACE_AGE to 0.
    12 # if backwards compatibility has been broken,
    13 # set BINARY_AGE and INTERFACE_AGE to 0.
    14 #
    15 MAJOR_VERSION=1
    16 MINOR_VERSION=2
    17 MICRO_VERSION=10
    18 INTERFACE_AGE=0
    19 BINARY_AGE=10
    20 VERSION=$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION
    21 
    22 AC_SUBST(MAJOR_VERSION)
    23 AC_SUBST(MINOR_VERSION)
    24 AC_SUBST(MICRO_VERSION)
    25 AC_SUBST(INTERFACE_AGE)
    26 AC_SUBST(BINARY_AGE)
    27 AC_SUBST(VERSION)
    28 
    29 # libtool versioning
    30 LT_INIT([win32-dll])
    31 
    32 LT_RELEASE=$MAJOR_VERSION.$MINOR_VERSION
    33 LT_CURRENT=`expr $MICRO_VERSION - $INTERFACE_AGE`
    34 LT_REVISION=$INTERFACE_AGE
    35 LT_AGE=`expr $BINARY_AGE - $INTERFACE_AGE`
    36 m4_pattern_allow([^LT_])
    37 
    38 AC_SUBST(LT_RELEASE)
    39 AC_SUBST(LT_CURRENT)
    40 AC_SUBST(LT_REVISION)
    41 AC_SUBST(LT_AGE)
    42 
    43 dnl Detect the canonical build and host environments
    44 AC_CONFIG_AUX_DIRS($srcdir/build-scripts)
    45 dnl AC_CANONICAL_HOST
    46 
    47 dnl Check for tools
    48 AC_PROG_LIBTOOL
    49 AC_PROG_CC
    50 AC_PROG_INSTALL
    51 AC_PROG_MAKE_SET
    52 if test -z "$host_alias"; then
    53     hostaliaswindres=
    54 else
    55     hostaliaswindres="$host_alias-windres"
    56 fi
    57 AC_CHECK_PROGS(WINDRES, [windres $hostaliaswindres $host_os-windres])
    58 
    59 dnl Set up the compiler and linker flags
    60 case "$host" in
    61     *-*-cygwin*)
    62         # We build SDL on cygwin without the UNIX emulation layer
    63         BASE_CFLAGS="-I/usr/include/mingw -mno-cygwin"
    64         BASE_LDFLAGS="-mno-cygwin"
    65         ;;
    66     *)
    67         BASE_CFLAGS="-D_GNU_SOURCE=1"
    68         BASE_LDFLAGS=""
    69         ;;
    70 esac
    71 BUILD_CFLAGS="$CFLAGS $CPPFLAGS"
    72 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
    73 BUILD_LDFLAGS="$LDFLAGS"
    74 EXTRA_LDFLAGS="$BASE_LDFLAGS"
    75 ## These are common directories to find software packages
    76 #for path in /usr/freeware /usr/pkg /usr/local; do
    77 #    if test -d $path/include; then
    78 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
    79 #    fi
    80 #    if test -d $path/lib; then
    81 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
    82 #    fi
    83 #done
    84 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
    85 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
    86 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
    87 
    88 dnl Check for compiler characteristics
    89 AC_C_CONST
    90 
    91 dnl See whether we can use gcc style dependency tracking
    92 AC_ARG_ENABLE(dependency-tracking,
    93 AC_HELP_STRING([--enable-dependency-tracking],
    94                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
    95               , enable_dependency_tracking=yes)
    96 if test x$enable_dependency_tracking = xyes; then
    97     have_gcc_mmd_mt=no
    98     AC_MSG_CHECKING(for GCC -MMD -MT option)
    99     AC_TRY_COMPILE([
   100     #if !defined(__GNUC__) || __GNUC__ < 3
   101     #error Dependency tracking requires GCC 3.0 or newer
   102     #endif
   103     ],[
   104     ],[
   105     have_gcc_mmd_mt=yes
   106     ])
   107     AC_MSG_RESULT($have_gcc_mmd_mt)
   108 
   109     if test x$have_gcc_mmd_mt = xyes; then
   110         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   111     fi
   112 fi
   113     
   114 case "$host" in
   115     *-*-cygwin* | *-*-mingw32*)
   116         VERSION_SOURCES="$srcdir/version.rc"
   117         EXE=".exe"
   118         if test "$build" != "$host"; then # cross-compiling
   119             # Default cross-compile location
   120             ac_default_prefix=/usr/local/cross-tools/i386-mingw32
   121         else
   122             # Look for the location of the tools and install there
   123             if test "$BUILD_PREFIX" != ""; then
   124                 ac_default_prefix=$BUILD_PREFIX
   125             fi
   126         fi
   127         ;;
   128     *)
   129         SOURCES=""
   130         EXE=""
   131         ;;
   132 esac
   133 
   134 # Standard C sources
   135 SOURCES="$SOURCES \
   136 $srcdir/effect_position.c \
   137 $srcdir/effect_stereoreverse.c \
   138 $srcdir/effects_internal.c \
   139 $srcdir/load_aiff.c \
   140 $srcdir/load_voc.c \
   141 $srcdir/mixer.c \
   142 $srcdir/music.c"
   143 
   144 dnl set this to use on systems that use lib64 instead of lib
   145 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   146 
   147 dnl Function to find a library in the compiler search path
   148 find_lib()
   149 {
   150     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   151     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   152     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   153     if test "$cross_compiling" = yes; then
   154         host_lib_path=""
   155     else
   156         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   157     fi
   158     for path in $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   159         lib=[`ls -- $path/$1 2>/dev/null | sort | sed 's/.*\/\(.*\)/\1/; q'`]
   160         if test x$lib != x; then
   161             echo $lib
   162             return
   163         fi
   164     done
   165 }
   166 
   167 dnl Check for SDL
   168 SDL_VERSION=1.2.10
   169 AM_PATH_SDL($SDL_VERSION,
   170             :,
   171             AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
   172 )
   173 EXTRA_CFLAGS="$EXTRA_CFLAGS $SDL_CFLAGS"
   174 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SDL_LIBS"
   175 
   176 dnl Check for math library
   177 AC_CHECK_LIB(m, pow, [LIBM="-lm"])
   178 
   179 dnl Check command-line options
   180 
   181 AC_ARG_ENABLE([music-cmd],
   182 AC_HELP_STRING([--enable-music-cmd], [support an external music player [[default=yes]]]),
   183               [], [enable_music_cmd=detect])
   184 if test "x$enable_music_cmd" != xno; then
   185     AC_CHECK_FUNCS([fork vfork])
   186     if test "x$ac_cv_func_fork" = "xyes"; then
   187         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_FORK"
   188     elif test "x$ac_cv_func_vfork" = "xyes"; then
   189         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_VFORK"
   190     elif test "x$enable_music_cmd" = "xyes"; then
   191         AC_MSG_ERROR([external music player not available on your platform])
   192     else
   193         enable_music_cmd=no
   194     fi
   195     if test "x$enable_music_cmd" != xno; then
   196         SOURCES="$SOURCES $srcdir/music_cmd.c"
   197         EXTRA_CFLAGS="$EXTRA_CFLAGS -DCMD_MUSIC"
   198     fi
   199 fi
   200 
   201 AC_ARG_ENABLE([music-wave],
   202 AC_HELP_STRING([--enable-music-wave], [enable streaming WAVE music [[default=yes]]]),
   203               [], [enable_music_wave=yes])
   204 if test x$enable_music_wave = xyes; then
   205     SOURCES="$SOURCES $srcdir/wavestream.c"
   206     EXTRA_CFLAGS="$EXTRA_CFLAGS -DWAV_MUSIC"
   207 fi
   208 
   209 AC_ARG_ENABLE([music-mod],
   210 AC_HELP_STRING([--enable-music-mod], [enable MOD music via mikmod [[default=yes]]]),
   211               [], [enable_music_mod=yes])
   212 AC_ARG_ENABLE([music-mod-shared],
   213 AC_HELP_STRING([--enable-music-mod-shared], [dynamically load MOD support [[default=yes]]]),
   214               [], [enable_music_mod_shared=yes])
   215 if test x$enable_music_mod = xyes; then
   216     have_libmikmod=no
   217     libmikmod_maj=3
   218     libmikmod_min=1
   219     libmikmod_rev=10
   220     libmikmod_ver="$libmikmod_maj.$libmikmod_min.$libmikmod_rev"
   221     AC_PATH_PROG(LIBMIKMOD_CONFIG, libmikmod-config, no, [$PATH])
   222     if test "$LIBMIKMOD_CONFIG" != "no" ; then
   223         
   224         CFLAGS_SAVED="$CFLAGS"
   225         LIBS_SAVED="$LIBS"
   226         CFLAGS="$CFLAGS -DLIBMIKMOD_MUSIC `$LIBMIKMOD_CONFIG --cflags`"
   227         LIBS="$LIBS `$LIBMIKMOD_CONFIG --libs`"
   228         have_libmikmod=yes
   229         AC_MSG_CHECKING([for libmikmod - version >= $libmikmod_ver])
   230         AC_TRY_RUN([
   231 #include "mikmod.h"
   232 #include "stdio.h"
   233 
   234 int main(int argc, char **argv)
   235 {
   236 long maj=$libmikmod_maj,min=$libmikmod_min,rev=$libmikmod_rev,ver=MikMod_GetVersion();
   237 /*printf("(%d.%d.%d) ",ver>>16,(ver>>8)&0xff,ver&0xff);*/
   238 if(ver>=((maj<<16)|(min<<8)|(rev))) {
   239     printf("yes\n");
   240     return 0;
   241 }
   242 printf("no\n*** libmikmod is older than %d.%d.%d, not using.\n",maj,min,rev);
   243 return 1;
   244 }
   245 ], [], have_libmikmod=no; CFLAGS="$CFLAGS_SAVED"; LIBS="$LIBS_SAVED",
   246         [echo $ac_n "cross compiling; assumed OK... $ac_c"])
   247     fi
   248 
   249     if test x$have_libmikmod = xyes; then
   250         case "$host" in
   251             *-*-darwin*)
   252                 mikmod_lib=[`find_lib libmikmod.dylib`]
   253                 ;;
   254             *-*-cygwin* | *-*-mingw32*)
   255                 mikmod_lib=[`find_lib "mikmod*.dll"`]
   256                 ;;
   257             *)
   258                 mikmod_lib=[`find_lib "libmikmod*.so.[0-9]"`]
   259                 if test x$mikmod_lib = x; then
   260                     mikmod_lib=[`find_lib "libmikmod*.so.[0-9]*"`]
   261                 fi
   262                 ;;
   263         esac
   264         SOURCES="$SOURCES $srcdir/*_mod.c"
   265         EXTRA_CFLAGS="$EXTRA_CFLAGS -DMOD_MUSIC `$LIBMIKMOD_CONFIG --cflags`"
   266         if test x$enable_music_mod_shared = xyes && test x$mikmod_lib != x; then
   267             echo "-- dynamic libmikmod -> $mikmod_lib"
   268             EXTRA_CFLAGS="$EXTRA_CFLAGS -DMOD_DYNAMIC=\\\"$mikmod_lib\\\""
   269         else
   270             EXTRA_LDFLAGS="$EXTRA_LDFLAGS `$LIBMIKMOD_CONFIG --libs`"
   271         fi
   272     else
   273         AC_MSG_WARN([*** Unable to find MikMod library (http://mikmod.raphnet.net/)])
   274         AC_MSG_WARN([MOD support disabled])
   275     fi
   276 fi
   277 
   278 AC_ARG_ENABLE([music-midi],
   279 AC_HELP_STRING([--enable-music-midi], [enable MIDI music via timidity [[default=yes]]]),
   280               [], [enable_music_midi=yes])
   281 if test x$enable_music_midi = xyes; then
   282     EXTRA_CFLAGS="$EXTRA_CFLAGS -DMID_MUSIC"
   283     AC_ARG_ENABLE([music-timidity-midi],
   284 AC_HELP_STRING([--enable-music-timidity-midi], [enable timidity MIDI output [[default=yes]]]),
   285                   [], [enable_music_timidity_midi=yes])
   286     if test x$enable_music_timidity_midi = xyes; then
   287         EXTRA_CFLAGS="$EXTRA_CFLAGS -DUSE_TIMIDITY_MIDI -I\$(srcdir)/timidity"
   288         SOURCES="$SOURCES $srcdir/timidity/*.c"
   289     fi
   290     AC_ARG_ENABLE([music-native-midi],
   291 AC_HELP_STRING([--enable-music-native-midi], [enable native MIDI music output [[default=yes]]]),
   292                   [], [enable_music_native_midi=yes])
   293     if test x$enable_music_native_midi = xyes; then
   294         use_music_native_midi=no
   295         case "$host" in
   296             *-*-cygwin* | *-*-mingw32*)
   297                 use_music_native_midi=yes
   298                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lwinmm"
   299                 ;;
   300             *-*-darwin*)
   301                 use_music_native_midi=yes
   302                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit -Wl,-framework,CoreServices"
   303                 ;;
   304         esac
   305         if test x$use_music_native_midi = xyes; then
   306             EXTRA_CFLAGS="$EXTRA_CFLAGS -DUSE_NATIVE_MIDI -I\$(srcdir)/native_midi"
   307             SOURCES="$SOURCES $srcdir/native_midi/*.c"
   308         fi
   309     fi
   310     AC_ARG_ENABLE([music-native-midi-gpl],
   311 AC_HELP_STRING([--enable-music-native-midi-gpl], [enable native MIDI on UNIX using GPL code [[default=no]]]),
   312                   [], [enable_music_native_midi_gpl=no])
   313     if test x$enable_music_native_midi_gpl = xyes; then
   314         use_music_native_midi_gpl=no
   315         case "$host" in
   316             *-*-linux* | *-*-freebsd*)
   317                 use_music_native_midi_gpl=yes
   318                 ;;
   319         esac
   320         if test x$use_music_native_midi_gpl = xyes; then
   321             EXTRA_CFLAGS="$EXTRA_CFLAGS -DUSE_NATIVE_MIDI -I\$(srcdir)/native_midi"
   322             SOURCES="$SOURCES $srcdir/native_midi_gpl/*.c"
   323         fi
   324     fi
   325 fi
   326 
   327 AC_ARG_ENABLE([music-ogg],
   328 AC_HELP_STRING([--enable-music-ogg], [enable Ogg Vorbis music [[default=yes]]]),
   329               [], [enable_music_ogg=yes])
   330 AC_ARG_ENABLE(music-ogg-tremor,
   331 AC_HELP_STRING([--enable-music-ogg-tremor], [enable OGG Vorbis music via libtremor [[default=no]]]),
   332               [], enable_music_ogg_tremor=no)
   333 AC_ARG_ENABLE([music-ogg-shared],
   334 AC_HELP_STRING([--enable-music-ogg-shared], [dynamically load Ogg Vorbis support [[default=yes]]]),
   335               [], [enable_music_ogg_shared=yes])
   336 if test x$enable_music_ogg = xyes; then
   337     if test x$enable_music_ogg_tremor = xyes; then
   338         AC_CHECK_HEADER([tremor/ivorbisfile.h], [have_tremor_hdr=yes])
   339         AC_CHECK_LIB([vorbisidec], [ov_open_callbacks], [have_tremor_lib=yes])
   340         if test x$have_tremor_hdr = xyes -a x$have_tremor_lib = xyes; then
   341             case "$host" in
   342                 *-*-darwin*)
   343                     ogg_lib=[`find_lib libvorbisidec.dylib`]
   344                     if test x$ogg_lib = x; then
   345                         ogg_lib=[`find_lib libvorbisidec.[0-9]`]
   346                     fi
   347                     if test x$ogg_lib = x; then
   348                         ogg_lib=[`find_lib libvorbisidec.[0-9]*`]
   349                     fi
   350                     ;;
   351                 *-*-cygwin* | *-*-mingw32*)
   352                     ogg_lib=[`find_lib "vorbisidec*.dll"`]
   353                     ;;
   354                 *)
   355                     ogg_lib=[`find_lib "libvorbisidec.so.[0-9]"`]
   356                     if test x$ogg_lib = x; then
   357                         ogg_lib=[`find_lib "libvorbisidec.so.[0-9]*"`]
   358                     fi
   359                     ;;
   360             esac
   361             SOURCES="$SOURCES $srcdir/*_ogg.c"
   362             EXTRA_CFLAGS="$EXTRA_CFLAGS -DOGG_MUSIC -DOGG_USE_TREMOR"
   363             if test x$enable_music_ogg_shared = xyes && test x$ogg_lib != x; then
   364                 echo "-- dynamic libvorbisidec -> $ogg_lib"
   365                 EXTRA_CFLAGS="$EXTRA_CFLAGS -DOGG_DYNAMIC=\\\"$ogg_lib\\\""
   366             else
   367                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lvorbisidec -lvorbis -logg $LIBM"
   368             fi
   369         else
   370             AC_MSG_WARN([*** Unable to find Ogg Vorbis Tremor library (http://www.xiph.org/)])
   371             AC_MSG_WARN([Ogg Vorbis support disabled])
   372         fi
   373     else
   374         AC_CHECK_HEADER([vorbis/vorbisfile.h], [have_ogg_hdr=yes])
   375         AC_CHECK_LIB([vorbisfile], [ov_open_callbacks], [have_ogg_lib=yes])
   376         if test x$have_ogg_hdr = xyes -a x$have_ogg_lib = xyes; then
   377             case "$host" in
   378                 *-*-darwin*)
   379                     ogg_lib=[`find_lib libvorbisfile.dylib`]
   380                     ;;
   381                 *-*-cygwin* | *-*-mingw32*)
   382                     ogg_lib=[`find_lib "libvorbisfile*.dll"`]
   383                     ;;
   384                 *)
   385                     ogg_lib=[`find_lib "libvorbisfile.so.[0-9]"`]
   386                     if test x$ogg_lib = x; then
   387                         ogg_lib=[`find_lib "libvorbisfile.so.[0-9]*"`]
   388                     fi
   389                     ;;
   390             esac
   391             SOURCES="$SOURCES $srcdir/*_ogg.c"
   392             EXTRA_CFLAGS="$EXTRA_CFLAGS -DOGG_MUSIC"
   393             if test x$enable_music_ogg_shared = xyes && test x$ogg_lib != x; then
   394                 echo "-- dynamic libvorbisfile -> $ogg_lib"
   395                 EXTRA_CFLAGS="$EXTRA_CFLAGS -DOGG_DYNAMIC=\\\"$ogg_lib\\\""
   396             else
   397                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lvorbisfile -lvorbis -logg $LIBM"
   398             fi
   399         else
   400             AC_MSG_WARN([*** Unable to find Ogg Vorbis library (http://www.xiph.org/)])
   401             AC_MSG_WARN([Ogg Vorbis support disabled])
   402         fi
   403     fi
   404 fi
   405 
   406 libflac_ver=8
   407 AC_ARG_ENABLE([music-flac],
   408 AC_HELP_STRING([--enable-music-flac], [enable FLAC music [[default=yes]]]),
   409               [], [enable_music_flac=yes])
   410 AC_ARG_ENABLE([music-flac-shared],
   411 AC_HELP_STRING([--enable-music-flac-shared],
   412               [dynamically load FLAC support [[default=yes]]]),
   413               [], [enable_music_flac_shared=yes])
   414 if test x$enable_music_flac = xyes; then
   415     AC_CHECK_HEADER([FLAC/export.h], [have_flac_export=yes])
   416     if test x$have_flac_export = xyes; then
   417         LIBS_SAVED="$LIBS"
   418         LIBS="-lFLAC"
   419         AC_MSG_CHECKING([for libflac so-name version >= $libflac_ver])
   420         AC_TRY_RUN([
   421 #include "FLAC/export.h"
   422 #include "stdio.h"
   423 int main( int argc, char *argv[] ) {
   424 #if defined(FLAC_API_VERSION_CURRENT) && (FLAC_API_VERSION_CURRENT >= $libflac_ver)
   425     return 0;
   426 #else
   427     return 1;
   428 #endif
   429 }
   430 ], have_flac_ver=yes, have_flac_ver=no)
   431         LIBS="$LIBS_SAVED"
   432         AC_MSG_RESULT($have_flac_ver)
   433     fi
   434 
   435     if test x$have_flac_ver = xyes; then
   436         AC_CHECK_HEADER([FLAC/stream_decoder.h], [have_flac_hdr=yes])
   437         AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_new], [have_flac_lib=yes])
   438         if test x$have_flac_hdr = xyes -a x$have_flac_lib = xyes; then    
   439             case "$host" in
   440                 *-*-darwin*)
   441                     flac_lib=[`find_lib libFLAC.dylib`]
   442                     ;;
   443                 *-*-cygwin* | *-*-mingw32*)
   444                     flac_lib=[`find_lib "libFLAC*.dll"`]
   445                     ;;
   446                 *)
   447                     flac_lib=[`find_lib "libFLAC.so.[0-9]"`]
   448                     if test x$flac_lib = x; then
   449                         flac_lib=[`find_lib "libFLAC.so.[0-9]*"`]
   450                     fi
   451                     ;;
   452             esac
   453             SOURCES="$SOURCES $srcdir/*_flac.c"
   454             EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_MUSIC"
   455             if test x$enable_music_flac_shared = xyes && test x$flac_lib != x; then
   456                 echo "-- dynamic libFLAC -> $flac_lib"
   457                 EXTRA_CFLAGS="$EXTRA_CFLAGS -DFLAC_DYNAMIC=\\\"$flac_lib\\\""
   458             else
   459                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lFLAC"
   460             fi
   461         fi
   462     else
   463         AC_MSG_WARN([*** Unable to find FLAC library (http://flac.sourceforge.net/)])
   464         AC_MSG_WARN([FLAC support disabled])
   465     fi
   466 fi
   467 
   468 AC_ARG_ENABLE(music-mp3,
   469 AC_HELP_STRING([--enable-music-mp3], [enable MP3 music via smpeg [[default=yes]]]),
   470               [], enable_music_mp3=yes)
   471 AC_ARG_ENABLE([music-mp3-shared],
   472 AC_HELP_STRING([--enable-music-mp3-shared], [dynamically load MP3 support [[default=yes]]]),
   473               [], [enable_music_mp3_shared=yes])
   474 if test x$enable_music_mp3 = xyes; then
   475     SMPEG_VERSION=0.4.3
   476     AM_PATH_SMPEG($SMPEG_VERSION, have_smpeg=yes, have_smpeg=no)
   477     if test x$have_smpeg = xyes; then
   478         case "$host" in
   479             *-*-darwin*)
   480                 smpeg_lib=[`find_lib libsmpeg.dylib`]
   481                 ;;
   482             *-*-cygwin* | *-*-mingw32*)
   483                 smpeg_lib=[`find_lib "smpeg*.dll"`]
   484                 ;;
   485             *)
   486                 smpeg_lib=[`find_lib "libsmpeg*.so.[0-9]"`]
   487                 if test x$smpeg_lib = x; then
   488                     smpeg_lib=[`find_lib "libsmpeg*.so.[0-9]*"`]
   489                 fi
   490                 ;;
   491         esac
   492         SOURCES="$SOURCES $srcdir/*_mp3.c"
   493         EXTRA_CFLAGS="$EXTRA_CFLAGS -DMP3_MUSIC $SMPEG_CFLAGS"
   494         if test x$enable_music_mp3_shared = xyes && test x$smpeg_lib != x; then
   495             echo "-- dynamic libsmpeg -> $smpeg_lib"
   496             EXTRA_CFLAGS="$EXTRA_CFLAGS -DMP3_DYNAMIC=\\\"$smpeg_lib\\\""
   497         else
   498             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SMPEG_LIBS"
   499         fi
   500     else
   501         AC_MSG_WARN([*** Unable to find SMPEG library (http://icculus.org/smpeg/)])
   502     fi
   503 fi
   504 
   505 AC_ARG_ENABLE(music-mp3-mad-gpl,
   506 AC_HELP_STRING([--enable-music-mp3-mad-gpl], [enable MP3 music via libmad GPL code [[default=no]]]),
   507                   [], [enable_music_mp3_mad_gpl=no])
   508 if test x$enable_music_mp3_mad_gpl = xyes; then
   509     AC_MSG_CHECKING(for libmad headers)
   510     have_libmad=no
   511     AC_TRY_COMPILE([
   512      #include "mad.h"
   513     ],[
   514     ],[
   515     have_libmad=yes
   516     ])
   517     AC_MSG_RESULT($have_libmad)
   518     if test x$have_libmad = xyes; then
   519         SOURCES="$SOURCES $srcdir/music_mad.c"
   520         EXTRA_CFLAGS="$EXTRA_CFLAGS -DMP3_MAD_MUSIC"
   521         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lmad"
   522     else
   523         AC_MSG_WARN([*** Unable to find MAD library (http://www.underbit.com/products/mad/)])
   524     fi
   525 fi
   526 
   527 if test x$have_smpeg != xyes -a x$have_libmad != xyes; then
   528     AC_MSG_WARN([MP3 support disabled])
   529 fi
   530 
   531 
   532 OBJECTS=`echo $SOURCES`
   533 DEPENDS=`echo $SOURCES`
   534 OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
   535 DEPENDS=`echo "$DEPENDS" | sed 's,\([[^ ]]*\)/\([[^ ]]*\)\.c,\\
   536 $(objects)/\2.lo: \1/\2.c\\
   537 	\$(LIBTOOL) --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) '"$DEPENDENCY_TRACKING_OPTIONS"' -c \$< -o \$@,g'`
   538 
   539 VERSION_OBJECTS=`echo $VERSION_SOURCES`
   540 VERSION_DEPENDS=`echo $VERSION_SOURCES`
   541 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
   542 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed 's,\([[^ ]]*\)/\([[^ ]]*\)\.rc,\\
   543 $(objects)/\2.o: \1/\2.rc\\
   544 	\$(WINDRES) \$< \$@,g'`
   545 
   546 PLAYWAVE_SOURCES="$srcdir/playwave.c"
   547 PLAYWAVE_OBJECTS=`echo $PLAYWAVE_SOURCES`
   548 PLAYWAVE_DEPENDS=`echo $PLAYWAVE_SOURCES`
   549 PLAYWAVE_OBJECTS=`echo "$PLAYWAVE_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
   550 PLAYWAVE_DEPENDS=`echo "$PLAYWAVE_DEPENDS" | sed 's,\([[^ ]]*\)/\([[^ ]]*\)\.c,\\
   551 $(objects)/\2.lo: \1/\2.c\\
   552 	\$(LIBTOOL) --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) '"$DEPENDENCY_TRACKING_OPTIONS"' -c \$< -o \$@,g'`
   553 
   554 PLAYMUS_SOURCES="$srcdir/playmus.c"
   555 PLAYMUS_OBJECTS=`echo $PLAYMUS_SOURCES`
   556 PLAYMUS_DEPENDS=`echo $PLAYMUS_SOURCES`
   557 PLAYMUS_OBJECTS=`echo "$PLAYMUS_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
   558 PLAYMUS_DEPENDS=`echo "$PLAYMUS_DEPENDS" | sed 's,\([[^ ]]*\)/\([[^ ]]*\)\.c,\\
   559 $(objects)/\2.lo: \1/\2.c\\
   560 	\$(LIBTOOL) --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) '"$DEPENDENCY_TRACKING_OPTIONS"' -c \$< -o \$@,g'`
   561 
   562 dnl Expand the sources and objects needed to build the library
   563 AC_SUBST(ac_aux_dir)
   564 AC_SUBST(OBJECTS)
   565 AC_SUBST(DEPENDS)
   566 AC_SUBST(VERSION_OBJECTS)
   567 AC_SUBST(VERSION_DEPENDS)
   568 AC_SUBST(PLAYWAVE_OBJECTS)
   569 AC_SUBST(PLAYWAVE_DEPENDS)
   570 AC_SUBST(PLAYMUS_OBJECTS)
   571 AC_SUBST(PLAYMUS_DEPENDS)
   572 AC_SUBST(BUILD_CFLAGS)
   573 AC_SUBST(EXTRA_CFLAGS)
   574 AC_SUBST(BUILD_LDFLAGS)
   575 AC_SUBST(EXTRA_LDFLAGS)
   576 AC_SUBST(EXE)
   577 AC_SUBST(WINDRES)
   578 AC_SUBST(SDL_VERSION)
   579 AC_SUBST(SDL_CFLAGS)
   580 AC_SUBST(SDL_LIBS)
   581 
   582 AC_OUTPUT([
   583     Makefile SDL_mixer.spec SDL_mixer.qpg SDL_mixer.pc
   584 ])