configure.in
author Ryan C. Gordon <icculus@icculus.org>
Mon, 03 Feb 2014 11:52:54 -0500
changeset 8159 427e8fdf6f69
parent 8158 429513cb6707
child 8161 6c5d35c8b3dd
permissions -rw-r--r--
Hooked up dynamic loading for Mir.
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README.txt)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_CONFIG_AUX_DIR(build-scripts)
     5 AC_CONFIG_MACRO_DIR([acinclude])
     6 
     7 dnl Save the CFLAGS to see whether they were passed in or generated
     8 orig_CFLAGS="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=1
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=1
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(altivec,
   633 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   634                   , enable_altivec=yes)
   635     if test x$enable_altivec = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_altivec=no
   638         have_altivec_h_hdr=no
   639         altivec_CFLAGS="-maltivec"
   640         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   641 
   642         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   643         AC_TRY_COMPILE([
   644         #include <altivec.h>
   645         vector unsigned int vzero() {
   646             return vec_splat_u32(0);
   647         }
   648         ],[
   649         ],[
   650         have_gcc_altivec=yes
   651         have_altivec_h_hdr=yes
   652         ])
   653         AC_MSG_RESULT($have_gcc_altivec)
   654 
   655         if test x$have_gcc_altivec = xno; then
   656             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   657             AC_TRY_COMPILE([
   658             vector unsigned int vzero() {
   659                 return vec_splat_u32(0);
   660             }
   661             ],[
   662             ],[
   663             have_gcc_altivec=yes
   664             ])
   665             AC_MSG_RESULT($have_gcc_altivec)
   666         fi
   667 
   668         if test x$have_gcc_altivec = xno; then
   669             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   670             altivec_CFLAGS="-faltivec"
   671             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   672             AC_TRY_COMPILE([
   673             #include <altivec.h>
   674             vector unsigned int vzero() {
   675                 return vec_splat_u32(0);
   676             }
   677             ],[
   678             ],[
   679             have_gcc_altivec=yes
   680             have_altivec_h_hdr=yes
   681             ])
   682             AC_MSG_RESULT($have_gcc_altivec)
   683         fi
   684 
   685         if test x$have_gcc_altivec = xno; then
   686             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   687             AC_TRY_COMPILE([
   688             vector unsigned int vzero() {
   689                 return vec_splat_u32(0);
   690             }
   691             ],[
   692             ],[
   693             have_gcc_altivec=yes
   694             ])
   695             AC_MSG_RESULT($have_gcc_altivec)
   696         fi
   697         CFLAGS="$save_CFLAGS"
   698 
   699         if test x$have_gcc_altivec = xyes; then
   700             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   701             if test x$have_altivec_h_hdr = xyes; then
   702               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   703             fi
   704             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   705             SUMMARY_math="${SUMMARY_math} altivec"
   706         fi
   707     fi
   708 fi
   709 
   710 dnl See if the OSS audio interface is supported
   711 CheckOSS()
   712 {
   713     AC_ARG_ENABLE(oss,
   714 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   715                   , enable_oss=maybe)
   716 
   717     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   718     #  use sndio instead. So on there, we default to disabled. You can force
   719     #  it on if you really want, though.
   720     if test x$enable_oss = xmaybe; then
   721         enable_oss=yes
   722         case "$host" in
   723             *-*-openbsd*)
   724                 enable_oss=no;;
   725         esac
   726     fi
   727 
   728     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   729         AC_MSG_CHECKING(for OSS audio support)
   730         have_oss=no
   731         if test x$have_oss != xyes; then
   732             AC_TRY_COMPILE([
   733               #include <sys/soundcard.h>
   734             ],[
   735               int arg = SNDCTL_DSP_SETFRAGMENT;
   736             ],[
   737             have_oss=yes
   738             ])
   739         fi
   740         if test x$have_oss != xyes; then
   741             AC_TRY_COMPILE([
   742               #include <soundcard.h>
   743             ],[
   744               int arg = SNDCTL_DSP_SETFRAGMENT;
   745             ],[
   746             have_oss=yes
   747             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   748             ])
   749         fi
   750         AC_MSG_RESULT($have_oss)
   751         if test x$have_oss = xyes; then
   752             SUMMARY_audio="${SUMMARY_audio} oss"
   753             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   754             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   755             have_audio=yes
   756 
   757             # We may need to link with ossaudio emulation library
   758             case "$host" in
   759                 *-*-openbsd*|*-*-netbsd*)
   760                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   761             esac
   762         fi
   763     fi
   764 }
   765 
   766 dnl See if the ALSA audio interface is supported
   767 CheckALSA()
   768 {
   769     AC_ARG_ENABLE(alsa,
   770 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   771                   , enable_alsa=yes)
   772     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   773         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$alsa_save_CFLAGS"
   776         LDFLAGS="$alsa_save_LDFLAGS"
   777         LIBS="$alsa_save_LIBS"
   778         if test x$have_alsa = xyes; then
   779             AC_ARG_ENABLE(alsa-shared,
   780 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   781                           , enable_alsa_shared=yes)
   782             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   783 
   784             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   785             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   786             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   787             if test x$have_loadso != xyes && \
   788                test x$enable_alsa_shared = xyes; then
   789                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   790             fi
   791             if test x$have_loadso = xyes && \
   792                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   793                 echo "-- dynamic libasound -> $alsa_lib"
   794                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   795                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   796             else
   797                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   798                 SUMMARY_audio="${SUMMARY_audio} alsa"
   799             fi
   800             have_audio=yes
   801         fi
   802     fi
   803 }
   804 
   805 dnl Find the ESD includes and libraries
   806 CheckESD()
   807 {
   808     AC_ARG_ENABLE(esd,
   809 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   810                   , enable_esd=yes)
   811     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   812         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   813         if test x$have_esd = xyes; then
   814             AC_ARG_ENABLE(esd-shared,
   815 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   816                           , enable_esd_shared=yes)
   817             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   818 
   819             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   820             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   821             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   822             if test x$have_loadso != xyes && \
   823                test x$enable_esd_shared = xyes; then
   824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   825             fi
   826             if test x$have_loadso = xyes && \
   827                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   828                 echo "-- dynamic libesd -> $esd_lib"
   829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   830                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   831             else
   832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   833                 SUMMARY_audio="${SUMMARY_audio} esd"
   834             fi
   835             have_audio=yes
   836         fi
   837     fi
   838 }
   839 
   840 dnl Find PulseAudio
   841 CheckPulseAudio()
   842 {
   843     AC_ARG_ENABLE(pulseaudio,
   844 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   845                   , enable_pulseaudio=yes)
   846     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   847         audio_pulseaudio=no
   848 
   849         PULSEAUDIO_REQUIRED_VERSION=0.9
   850 
   851         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   852         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   853         if test x$PKG_CONFIG != xno; then
   854         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   855                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   856                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   857                 audio_pulseaudio=yes
   858             fi
   859         fi
   860         AC_MSG_RESULT($audio_pulseaudio)
   861 
   862         if test x$audio_pulseaudio = xyes; then
   863             AC_ARG_ENABLE(pulseaudio-shared,
   864 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   865                           , enable_pulseaudio_shared=yes)
   866             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   867 
   868             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   869             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   870             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   871             if test x$have_loadso != xyes && \
   872                test x$enable_pulseaudio_shared = xyes; then
   873                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   874             fi
   875             if test x$have_loadso = xyes && \
   876                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   877                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   878                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   879                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   880 
   881                 case "$host" in
   882                     # On Solaris, pulseaudio must be linked deferred explicitly
   883                     # to prevent undefined symbol failures.
   884                     *-*-solaris*)
   885                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   886                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   887                 esac
   888             else
   889                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   890                 SUMMARY_audio="${SUMMARY_audio} pulse"
   891             fi
   892             have_audio=yes
   893         fi
   894     fi
   895 }
   896 
   897 CheckARTSC()
   898 {
   899     AC_ARG_ENABLE(arts,
   900 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   901                   , enable_arts=yes)
   902     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   903         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   904         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   905             : # arts isn't installed
   906         else
   907             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   908             ARTS_LIBS=`$ARTSCONFIG --libs`
   909             AC_MSG_CHECKING(for aRts development environment)
   910             audio_arts=no
   911             save_CFLAGS="$CFLAGS"
   912             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   913             AC_TRY_COMPILE([
   914              #include <artsc.h>
   915             ],[
   916              arts_stream_t stream;
   917             ],[
   918             audio_arts=yes
   919             ])
   920             CFLAGS="$save_CFLAGS"
   921             AC_MSG_RESULT($audio_arts)
   922             if test x$audio_arts = xyes; then
   923                 AC_ARG_ENABLE(arts-shared,
   924 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   925                               , enable_arts_shared=yes)
   926                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   927 
   928                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   929                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   930                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   931                 if test x$have_loadso != xyes && \
   932                    test x$enable_arts_shared = xyes; then
   933                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   934                 fi
   935                 if test x$have_loadso = xyes && \
   936                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   937                     echo "-- dynamic libartsc -> $arts_lib"
   938                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   939                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
   940                 else
   941                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   942                     SUMMARY_audio="${SUMMARY_audio} arts"
   943                 fi
   944                 have_audio=yes
   945             fi
   946         fi
   947     fi
   948 }
   949 
   950 dnl See if the NAS audio interface is supported
   951 CheckNAS()
   952 {
   953     AC_ARG_ENABLE(nas,
   954 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   955                   , enable_nas=yes)
   956     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   957         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   958         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   959 
   960         AC_MSG_CHECKING(for NAS audio support)
   961         have_nas=no
   962 
   963         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   964             have_nas=yes
   965             NAS_LIBS="-laudio"
   966 
   967         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   968             have_nas=yes
   969             NAS_CFLAGS="-I/usr/X11R6/include/"
   970             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   971 
   972         fi
   973 
   974         AC_MSG_RESULT($have_nas)
   975 
   976         if test x$have_nas = xyes; then
   977             AC_ARG_ENABLE(nas-shared,
   978 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   979                           , enable_nas_shared=yes)
   980             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   981 
   982             if test x$have_loadso != xyes && \
   983                test x$enable_nas_shared = xyes; then
   984                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   985             fi
   986             if test x$have_loadso = xyes && \
   987                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   988                 echo "-- dynamic libaudio -> $nas_lib"
   989                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   990                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
   991             else
   992                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   993                 SUMMARY_audio="${SUMMARY_audio} nas"
   994             fi
   995 
   996             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   997             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   998             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   999             have_audio=yes
  1000         fi
  1001     fi
  1002 }
  1003 
  1004 dnl See if the sndio audio interface is supported
  1005 CheckSNDIO()
  1006 {
  1007     AC_ARG_ENABLE(sndio,
  1008 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1009                   , enable_sndio=yes)
  1010     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1011         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1012         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1013 
  1014         AC_MSG_CHECKING(for sndio audio support)
  1015         have_sndio=no
  1016 
  1017         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1018             have_sndio=yes
  1019             SNDIO_LIBS="-lsndio"
  1020         fi
  1021 
  1022         AC_MSG_RESULT($have_sndio)
  1023 
  1024         if test x$have_sndio = xyes; then
  1025             AC_ARG_ENABLE(sndio-shared,
  1026 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1027                           , enable_sndio_shared=yes)
  1028             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1029 
  1030             if test x$have_loadso != xyes && \
  1031                test x$enable_sndio_shared = xyes; then
  1032                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1033             fi
  1034             if test x$have_loadso = xyes && \
  1035                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1036                 echo "-- dynamic libsndio -> $sndio_lib"
  1037                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1038                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1039             else
  1040                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1041                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1042             fi
  1043 
  1044             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1045             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1046             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1047             have_audio=yes
  1048         fi
  1049     fi
  1050 }
  1051 
  1052 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1053 CheckDiskAudio()
  1054 {
  1055     AC_ARG_ENABLE(diskaudio,
  1056 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1057                   , enable_diskaudio=yes)
  1058     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1059         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1060         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1061         SUMMARY_audio="${SUMMARY_audio} disk"
  1062     fi
  1063 }
  1064 
  1065 dnl rcg03142006 See if the user wants the dummy audio driver...
  1066 CheckDummyAudio()
  1067 {
  1068     AC_ARG_ENABLE(dummyaudio,
  1069 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1070                   , enable_dummyaudio=yes)
  1071     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1072         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1073         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1074         SUMMARY_audio="${SUMMARY_audio} dummy"
  1075     fi
  1076 }
  1077 
  1078 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1079 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1080 CheckVisibilityHidden()
  1081 {
  1082     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1083     have_gcc_fvisibility=no
  1084 
  1085     visibility_CFLAGS="-fvisibility=hidden"
  1086     save_CFLAGS="$CFLAGS"
  1087     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1088     AC_TRY_COMPILE([
  1089     #if !defined(__GNUC__) || __GNUC__ < 4
  1090     #error SDL only uses visibility attributes in GCC 4 or newer
  1091     #endif
  1092     ],[
  1093     ],[
  1094     have_gcc_fvisibility=yes
  1095     ])
  1096     AC_MSG_RESULT($have_gcc_fvisibility)
  1097     CFLAGS="$save_CFLAGS"
  1098 
  1099     if test x$have_gcc_fvisibility = xyes; then
  1100         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1101     fi
  1102 }
  1103 
  1104 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1105 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1106 CheckStackBoundary()
  1107 {
  1108     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1109     have_gcc_preferred_stack_boundary=no
  1110 
  1111     save_CFLAGS="$CFLAGS"
  1112     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1113     AC_TRY_COMPILE([
  1114     int x = 0;
  1115     ],[
  1116     ],[
  1117     have_gcc_preferred_stack_boundary=yes
  1118     ])
  1119     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1120     CFLAGS="$save_CFLAGS"
  1121 
  1122     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1123         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 dnl See if GCC's -Wall is supported.
  1128 CheckWarnAll()
  1129 {
  1130     AC_MSG_CHECKING(for GCC -Wall option)
  1131     have_gcc_Wall=no
  1132 
  1133     save_CFLAGS="$CFLAGS"
  1134     CFLAGS="$save_CFLAGS -Wall"
  1135     AC_TRY_COMPILE([
  1136     int x = 0;
  1137     ],[
  1138     ],[
  1139     have_gcc_Wall=yes
  1140     ])
  1141     AC_MSG_RESULT($have_gcc_Wall)
  1142     CFLAGS="$save_CFLAGS"
  1143 
  1144     if test x$have_gcc_Wall = xyes; then
  1145         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1146 
  1147         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1148         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1149         need_gcc_Wno_multichar=no
  1150         case "$host" in
  1151             *-*-haiku*)
  1152                 need_gcc_Wno_multichar=yes
  1153                 ;;
  1154         esac
  1155         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1156         if test x$need_gcc_Wno_multichar = xyes; then
  1157             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1158         fi
  1159     fi
  1160 }
  1161 
  1162 dnl Check for Wayland
  1163 CheckWayland()
  1164 {
  1165     AC_ARG_ENABLE(video-wayland,
  1166 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1167                   ,enable_video_wayland=yes)
  1168 
  1169     AC_ARG_ENABLE(video-wayland-qt-touch,
  1170 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1171                   ,enable_video_wayland_qt_touch=yes)
  1172 
  1173     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1174         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1175         AC_MSG_CHECKING(for Wayland support)
  1176         video_wayland=no
  1177         if test x$PKG_CONFIG != xno; then
  1178             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1179                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1180                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1181                 video_wayland=yes
  1182             fi
  1183         fi
  1184         AC_MSG_RESULT($video_wayland)
  1185 
  1186         if test x$video_wayland = xyes; then
  1187             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1188             if test x$enable_video_wayland_qt_touch = xyes; then
  1189                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1190             fi
  1191             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1192             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1193             AC_ARG_ENABLE(wayland-shared,
  1194 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1195                           , enable_wayland_shared=maybe)
  1196 
  1197             dnl FIXME: Do BSD and OS X need special cases?
  1198             case "$host" in
  1199                 *)
  1200                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1201                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1202                     if test x$wayland_egl_lib = x; then
  1203                         dnl This works in Ubuntu 13.10, maybe others
  1204                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1205                     fi
  1206                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1207                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1208                     ;;
  1209             esac
  1210 
  1211             if test x$enable_wayland_shared = xmaybe; then
  1212                 enable_wayland_shared=yes
  1213             fi
  1214             if test x$have_loadso != xyes && \
  1215                test x$enable_wayland_shared = xyes; then
  1216                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1217                 enable_wayland_shared=no
  1218             fi
  1219             if test x$have_loadso = xyes && \
  1220                test x$enable_wayland_shared = xyes && \
  1221                test x$wayland_client_lib != x && \
  1222                test x$wayland_egl_lib != x && \
  1223                test x$wayland_cursor_lib != x && \
  1224                test x$xkbcommon_lib != x; then
  1225                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1226                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1227                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1228                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1229                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1230                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1231                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1232                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1233                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1234             else
  1235                 enable_wayland_shared=no
  1236                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1237                 SUMMARY_video="${SUMMARY_video} wayland"
  1238             fi
  1239             have_video=yes
  1240         fi
  1241     fi
  1242 }
  1243 
  1244 dnl Check for Mir
  1245 CheckMir()
  1246 {
  1247     AC_ARG_ENABLE(video-mir,
  1248 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1249                   ,enable_video_mir=yes)
  1250 
  1251     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1252         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1253         AC_MSG_CHECKING(for Mir support)
  1254         video_mir=no
  1255         if test x$PKG_CONFIG != xno; then
  1256             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1257                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1258                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1259                 video_mir=yes
  1260             fi
  1261         fi
  1262         AC_MSG_RESULT($video_mir)
  1263 
  1264         if test x$video_mir = xyes; then
  1265             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1266             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1267             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1268             AC_ARG_ENABLE(mir-shared,
  1269 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1270                           , enable_mir_shared=maybe)
  1271 
  1272             dnl FIXME: Do BSD and OS X need special cases?
  1273             case "$host" in
  1274                 *)
  1275                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1276                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1277                     ;;
  1278             esac
  1279 
  1280             if test x$enable_mir_shared = xmaybe; then
  1281                 enable_mir_shared=yes
  1282             fi
  1283             if test x$have_loadso != xyes && \
  1284                test x$enable_mir_shared = xyes; then
  1285                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1286                 enable_mir_shared=no
  1287             fi
  1288             if test x$have_loadso = xyes && \
  1289                test x$enable_mir_shared = xyes && \
  1290                test x$mirclient_lib != x && \
  1291                test x$xkbcommon_lib != x; then
  1292                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1293                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1294                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1295                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1296                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1297             else
  1298                 enable_mir_shared=no
  1299                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1300                 SUMMARY_video="${SUMMARY_video} mir"
  1301             fi
  1302             have_video=yes
  1303         fi
  1304     fi
  1305 }
  1306 
  1307 
  1308 dnl Find the X11 include and library directories
  1309 CheckX11()
  1310 {
  1311 
  1312 
  1313     AC_ARG_ENABLE(video-x11,
  1314 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1315                   , enable_video_x11=yes)
  1316     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1317         case "$host" in
  1318             *-*-darwin*)
  1319                 # This isn't necessary for X11, but fixes GLX detection
  1320                 if test "x$x_includes" = xNONE && \
  1321                    test "x$x_libraries" = xNONE && \
  1322                    test -d /usr/X11R6/include && \
  1323                    test -d /usr/X11R6/lib; then
  1324                     x_includes="/usr/X11R6/include"
  1325                     x_libraries="/usr/X11R6/lib"
  1326                 fi
  1327                 ;;
  1328         esac
  1329         AC_PATH_X
  1330         AC_PATH_XTRA
  1331         if test x$have_x = xyes; then
  1332             AC_ARG_ENABLE(x11-shared,
  1333 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1334                           , enable_x11_shared=maybe)
  1335 
  1336             case "$host" in
  1337                 *-*-darwin*)
  1338                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1339                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1340                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1341                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1342                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1343                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1344                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1345                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1346                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1347                     ;;
  1348                 *-*-openbsd*)
  1349                     x11_lib='libX11.so'
  1350                     x11ext_lib='libXext.so'
  1351                     xcursor_lib='libXcursor.so'
  1352                     xinerama_lib='libXinerama.so'
  1353                     xinput_lib='libXi.so'
  1354                     xrandr_lib='libXrandr.so'
  1355                     xrender_lib='libXrender.so'
  1356                     xss_lib='libXss.so'
  1357                     xvidmode_lib='libXxf86vm.so'
  1358                     ;;
  1359                 *)
  1360                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1361                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1362                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1363                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1364                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1365                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1366                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1367                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1368                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1369                     ;;
  1370             esac
  1371 
  1372             if test x$ac_cv_func_shmat != xyes; then
  1373                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1374             fi
  1375             CFLAGS="$CFLAGS $X_CFLAGS"
  1376             LDFLAGS="$LDFLAGS $X_LIBS"
  1377 
  1378             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1379                             have_xext_h_hdr=yes,
  1380                             have_xext_h_hdr=no,
  1381                             [#include <X11/Xlib.h>
  1382                              #include <X11/Xproto.h>
  1383                             ])
  1384             if test x$have_xext_h_hdr != xyes; then
  1385                AC_MSG_ERROR([
  1386 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1387                ])
  1388             fi
  1389 
  1390             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1391             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1392             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1393 
  1394             # Needed so SDL applications can include SDL_syswm.h
  1395             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1396 
  1397             if test x$enable_x11_shared = xmaybe; then
  1398                 enable_x11_shared=yes
  1399             fi
  1400             if test x$have_loadso != xyes && \
  1401                test x$enable_x11_shared = xyes; then
  1402                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1403                 enable_x11_shared=no
  1404             fi
  1405             if test x$have_loadso = xyes && \
  1406                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1407                 echo "-- dynamic libX11 -> $x11_lib"
  1408                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1409                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1410                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1411                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1412             else
  1413                 enable_x11_shared=no
  1414                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1415                 SUMMARY_video="${SUMMARY_video} x11"
  1416             fi
  1417             have_video=yes
  1418 
  1419             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1420             have_const_param_XextAddDisplay=no
  1421             AC_TRY_COMPILE([
  1422               #include <X11/Xlib.h>
  1423               #include <X11/Xproto.h>
  1424               #include <X11/extensions/Xext.h>
  1425               #include <X11/extensions/extutil.h>
  1426               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1427             ],[
  1428             ],[
  1429             have_const_param_XextAddDisplay=yes
  1430             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1431             ])
  1432             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1433 
  1434             AC_MSG_CHECKING(for const parameter to _XData32)
  1435 	    have_const_param_xdata32=no
  1436 	    AC_TRY_COMPILE([
  1437 	      #include <X11/Xlibint.h>
  1438 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1439 	    ],[
  1440 	    ],[
  1441 	    have_const_param_xdata32=yes
  1442 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1443 	    ])
  1444 	    AC_MSG_RESULT($have_const_param_xdata32)
  1445 
  1446             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1447             AC_MSG_CHECKING([for XGenericEvent])
  1448             have_XGenericEvent=no
  1449             AC_TRY_COMPILE([
  1450               	#include <X11/Xlib.h>
  1451             ],[
  1452 Display *display;
  1453 XEvent event;
  1454 XGenericEventCookie *cookie = &event.xcookie;
  1455 XNextEvent(display, &event);
  1456 XGetEventData(display, cookie);
  1457 XFreeEventData(display, cookie);
  1458             ],[
  1459                 have_XGenericEvent=yes
  1460                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1461             ])
  1462             AC_MSG_RESULT($have_XGenericEvent)
  1463 
  1464             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1465 
  1466             AC_ARG_ENABLE(video-x11-xcursor,
  1467 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1468                             , enable_video_x11_xcursor=yes)
  1469             if test x$enable_video_x11_xcursor = xyes; then
  1470                 definitely_enable_video_x11_xcursor=no
  1471                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1472                                 have_xcursor_h_hdr=yes,
  1473                                 have_xcursor_h_hdr=no,
  1474                                 [#include <X11/Xlib.h>
  1475                                 ])
  1476                 if test x$have_xcursor_h_hdr = xyes; then
  1477                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1478                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1479                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1480                         definitely_enable_video_x11_xcursor=yes
  1481                     else
  1482                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1483                         if test x$have_xcursor_lib = xyes ; then
  1484                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1485                             definitely_enable_video_x11_xcursor=yes
  1486                         fi
  1487                     fi
  1488                 fi
  1489             fi
  1490             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1491                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1492                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1493             fi
  1494             AC_ARG_ENABLE(video-x11-xinerama,
  1495 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1496                             , enable_video_x11_xinerama=yes)
  1497             if test x$enable_video_x11_xinerama = xyes; then
  1498                 definitely_enable_video_x11_xinerama=no
  1499                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1500                                 have_xinerama_h_hdr=yes,
  1501                                 have_xinerama_h_hdr=no,
  1502                                 [#include <X11/Xlib.h>
  1503                                 ])
  1504                 if test x$have_xinerama_h_hdr = xyes; then
  1505                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1506                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1507                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1508                         definitely_enable_video_x11_xinerama=yes
  1509                     else
  1510                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1511                         if test x$have_xinerama_lib = xyes ; then
  1512                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1513                             definitely_enable_video_x11_xinerama=yes
  1514                         fi
  1515                     fi
  1516                 fi
  1517             fi
  1518             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1519                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1520                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1521             fi
  1522             AC_ARG_ENABLE(video-x11-xinput,
  1523 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1524                             , enable_video_x11_xinput=yes)
  1525             if test x$enable_video_x11_xinput = xyes; then
  1526                 definitely_enable_video_x11_xinput=no
  1527                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1528                                 have_xinput_h_hdr=yes,
  1529                                 have_xinput_h_hdr=no,
  1530                                 [#include <X11/Xlib.h>
  1531                                 ])
  1532                 if test x$have_xinput_h_hdr = xyes; then
  1533                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1534                         echo "-- dynamic libXi -> $xinput_lib"
  1535                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1536                         definitely_enable_video_x11_xinput=yes
  1537                     else
  1538                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1539                         if test x$have_xinput_lib = xyes ; then
  1540                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1541                             definitely_enable_video_x11_xinput=yes
  1542                         fi
  1543                     fi
  1544                 fi
  1545             fi
  1546             if test x$definitely_enable_video_x11_xinput = xyes; then
  1547                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1548                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1549                 AC_MSG_CHECKING(for xinput2 multitouch)
  1550             	have_xinput2_multitouch=no
  1551             	AC_TRY_COMPILE([
  1552               		#include <X11/Xlib.h>
  1553              		#include <X11/Xproto.h>
  1554 			#include <X11/extensions/XInput2.h>
  1555             	],[
  1556 int event_type = XI_TouchBegin;
  1557 XITouchClassInfo *t;
  1558 Status 
  1559 XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f)
  1560 {
  1561     return (Status)0;
  1562 }
  1563             	],[
  1564             	have_xinput2_multitouch=yes
  1565             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1566                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1567             	])
  1568             	AC_MSG_RESULT($have_xinput2_multitouch)
  1569             fi
  1570             AC_ARG_ENABLE(video-x11-xrandr,
  1571 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1572                             , enable_video_x11_xrandr=yes)
  1573             if test x$enable_video_x11_xrandr = xyes; then
  1574                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1575                 definitely_enable_video_x11_xrandr=no
  1576                 have_xrandr_h_hdr=no
  1577                 AC_TRY_COMPILE([
  1578                 #include <X11/Xlib.h>
  1579                 #include <X11/extensions/Xrandr.h>
  1580                 ],[
  1581                 XRRScreenResources *res = NULL;
  1582                 ],[
  1583                 have_xrandr_h_hdr=yes
  1584                 ])
  1585                 if test x$have_xrandr_h_hdr = xyes; then
  1586                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1587                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1588                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1589                         definitely_enable_video_x11_xrandr=yes
  1590                     else
  1591                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1592                         if test x$have_xrandr_lib = xyes ; then
  1593                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1594                             definitely_enable_video_x11_xrandr=yes
  1595                         fi
  1596                     fi
  1597                 fi
  1598             fi
  1599             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1600                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1601                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1602             fi
  1603             AC_ARG_ENABLE(video-x11-scrnsaver,
  1604 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1605                             , enable_video_x11_scrnsaver=yes)
  1606             if test x$enable_video_x11_scrnsaver = xyes; then
  1607                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1608                                 have_scrnsaver_h_hdr=yes,
  1609                                 have_scrnsaver_h_hdr=no,
  1610                                 [#include <X11/Xlib.h>
  1611                                 ])
  1612                 if test x$have_scrnsaver_h_hdr = xyes; then
  1613                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1614                         echo "-- dynamic libXss -> $xss_lib"
  1615                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1616                         definitely_enable_video_x11_scrnsaver=yes
  1617                     else
  1618                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1619                         if test x$have_xss_lib = xyes ; then
  1620                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1621                             definitely_enable_video_x11_scrnsaver=yes
  1622                         fi
  1623                     fi
  1624                 fi
  1625             fi
  1626             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1627                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1628                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1629             fi
  1630             AC_ARG_ENABLE(video-x11-xshape,
  1631 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1632                             , enable_video_x11_xshape=yes)
  1633             if test x$enable_video_x11_xshape = xyes; then
  1634                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1635                                 have_shape_h_hdr=yes,
  1636                                 have_shape_h_hdr=no,
  1637                                 [#include <X11/Xlib.h>
  1638                                 ])
  1639                 if test x$have_shape_h_hdr = xyes; then
  1640                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1641                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1642                 fi
  1643             fi
  1644             AC_ARG_ENABLE(video-x11-vm,
  1645 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1646                             , enable_video_x11_vm=yes)
  1647             if test x$enable_video_x11_vm = xyes; then
  1648                 definitely_enable_video_x11_vm=no
  1649                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1650                                 have_vm_h_hdr=yes,
  1651                                 have_vm_h_hdr=no,
  1652                                 [#include <X11/Xlib.h>
  1653                                 ])
  1654                 if test x$have_vm_h_hdr = xyes; then
  1655                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1656                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1657                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1658                         definitely_enable_video_x11_vm=yes
  1659                     else
  1660                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1661                         if test x$have_vm_lib = xyes ; then
  1662                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1663                             definitely_enable_video_x11_vm=yes
  1664                         fi
  1665                     fi
  1666                 fi
  1667             fi
  1668             if test x$definitely_enable_video_x11_vm = xyes; then
  1669                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1670                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1671             fi
  1672         fi
  1673     fi
  1674 }
  1675 
  1676 dnl Set up the Haiku video driver if enabled
  1677 CheckHaikuVideo()
  1678 {
  1679     if test x$enable_video = xyes; then
  1680         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1681         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1682         have_video=yes
  1683         SUMMARY_video="${SUMMARY_video} haiku"
  1684     fi
  1685 }
  1686 
  1687 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1688 CheckCOCOA()
  1689 {
  1690     AC_ARG_ENABLE(video-cocoa,
  1691 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1692                   , enable_video_cocoa=yes)
  1693     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1694         save_CFLAGS="$CFLAGS"
  1695         dnl work around that we don't have Objective-C support in autoconf
  1696         CFLAGS="$CFLAGS -x objective-c"
  1697         AC_MSG_CHECKING(for Cocoa framework)
  1698         have_cocoa=no
  1699         AC_TRY_COMPILE([
  1700           #import <Cocoa/Cocoa.h>
  1701         ],[
  1702         ],[
  1703         have_cocoa=yes
  1704         ])
  1705         AC_MSG_RESULT($have_cocoa)
  1706         CFLAGS="$save_CFLAGS"
  1707         if test x$have_cocoa = xyes; then
  1708             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1709             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1710             SUMMARY_video="${SUMMARY_video} cocoa"
  1711             have_video=yes
  1712         fi
  1713     fi
  1714 }
  1715 
  1716 dnl Find DirectFB
  1717 CheckDirectFB()
  1718 {
  1719     AC_ARG_ENABLE(video-directfb,
  1720 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1721                   , enable_video_directfb=no)
  1722     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1723         video_directfb=no
  1724 
  1725         DIRECTFB_REQUIRED_VERSION=1.0.0
  1726         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1727         if test x$DIRECTFBCONFIG = xno; then
  1728             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1729             if test x$PKG_CONFIG != xno; then
  1730                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1731                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1732                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1733                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1734                     video_directfb=yes
  1735                 fi
  1736             fi
  1737         else
  1738             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1739             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1740             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1741             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1742             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1743                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1744                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1745                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1746                 video_directfb=yes
  1747             fi
  1748         fi
  1749         if test x$video_directfb = xyes; then
  1750             # SuSE 11.1 installs directfb-config without directfb-devel
  1751             save_CPPFLAGS="$CPPFLAGS"
  1752             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1753             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1754             CPPFLAGS="$save_CPPFLAGS"
  1755             video_directfb=$have_directfb_hdr
  1756         fi
  1757         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1758         AC_MSG_RESULT($video_directfb)
  1759 
  1760         if test x$video_directfb = xyes; then
  1761             AC_ARG_ENABLE(directfb-shared,
  1762 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1763                               , enable_directfb_shared=yes)
  1764 
  1765             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1766             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1767             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1768             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1769 
  1770             AC_MSG_CHECKING(for directfb dynamic loading support)
  1771             directfb_shared=no
  1772             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1773             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1774 AC_MSG_WARN("directfb $directfb_lib")
  1775             if test x$have_loadso != xyes && \
  1776                test x$enable_directfb_shared = xyes; then
  1777                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1778             fi
  1779             if test x$have_loadso = xyes && \
  1780                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1781                 directfb_shared=yes
  1782                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1783                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1784                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1785             else
  1786                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1787                 SUMMARY_video="${SUMMARY_video} directfb"
  1788             fi
  1789             AC_MSG_RESULT($directfb_shared)
  1790             have_video=yes
  1791         fi
  1792     fi
  1793 }
  1794 
  1795 dnl Find FusionSound
  1796 CheckFusionSound()
  1797 {
  1798     AC_ARG_ENABLE(fusionsound,
  1799 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1800                   , enable_fusionsound=no)
  1801     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1802         fusionsound=no
  1803 
  1804         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1805 
  1806         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1807         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1808         if test x$PKG_CONFIG != xno; then
  1809             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1810                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1811                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1812                 fusionsound=yes
  1813             fi
  1814         fi
  1815         AC_MSG_RESULT($fusionsound)
  1816 
  1817         if test x$fusionsound = xyes; then
  1818             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1819             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1820             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1821             
  1822             AC_ARG_ENABLE(fusionsound-shared,
  1823 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1824                           , enable_fusionsound_shared=yes)
  1825             fusionsound_shared=no
  1826             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1827             if test x$have_loadso != xyes && \
  1828                test x$enable_fusionsound_shared = xyes; then
  1829                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1830             fi
  1831             if test x$have_loadso = xyes && \
  1832                test x$enable_fusionsound_shared = xyes; then
  1833                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1834                 fusionsound_shared=yes
  1835                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1836             else
  1837                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1838                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1839             fi
  1840             AC_MSG_RESULT($fusionsound_shared)
  1841             
  1842             have_audio=yes
  1843         fi
  1844     fi
  1845 }
  1846 
  1847 dnl rcg04172001 Set up the Null video driver.
  1848 CheckDummyVideo()
  1849 {
  1850     AC_ARG_ENABLE(video-dummy,
  1851 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1852                   , enable_video_dummy=yes)
  1853     if test x$enable_video_dummy = xyes; then
  1854         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1855         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1856         have_video=yes
  1857         SUMMARY_video="${SUMMARY_video} dummy"
  1858     fi
  1859 }
  1860 
  1861 dnl Check to see if OpenGL support is desired
  1862 AC_ARG_ENABLE(video-opengl,
  1863 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1864               , enable_video_opengl=yes)
  1865 
  1866 dnl Find OpenGL
  1867 CheckOpenGLX11()
  1868 {
  1869     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1870         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1871         video_opengl=no
  1872         AC_TRY_COMPILE([
  1873          #include <GL/gl.h>
  1874          #include <GL/glx.h>
  1875         ],[
  1876         ],[
  1877         video_opengl=yes
  1878         ])
  1879         AC_MSG_RESULT($video_opengl)
  1880         if test x$video_opengl = xyes; then
  1881             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1882             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1883             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1884             SUMMARY_video="${SUMMARY_video} opengl"
  1885         fi
  1886     fi
  1887 }
  1888 
  1889 dnl Check to see if OpenGL ES support is desired
  1890 AC_ARG_ENABLE(video-opengles,
  1891 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1892               , enable_video_opengles=yes)
  1893 
  1894 dnl Find OpenGL ES
  1895 CheckOpenGLESX11()
  1896 {
  1897     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1898         AC_MSG_CHECKING(for EGL support)
  1899         video_opengl_egl=no
  1900         AC_TRY_COMPILE([
  1901          #include <EGL/egl.h>
  1902         ],[
  1903         ],[
  1904         video_opengl_egl=yes
  1905         ])
  1906         AC_MSG_RESULT($video_opengl_egl)
  1907         if test x$video_opengl_egl = xyes; then
  1908             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1909         fi
  1910             
  1911         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1912         video_opengles_v1=no
  1913         AC_TRY_COMPILE([
  1914          #include <GLES/gl.h>
  1915          #include <GLES/glext.h>
  1916         ],[
  1917         ],[
  1918         video_opengles_v1=yes
  1919         ])
  1920         AC_MSG_RESULT($video_opengles_v1)
  1921         if test x$video_opengles_v1 = xyes; then
  1922             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1923             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1924             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1925         fi
  1926         
  1927         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1928         video_opengles_v2=no
  1929         AC_TRY_COMPILE([
  1930          #include <GLES2/gl2.h>
  1931          #include <GLES2/gl2ext.h>
  1932         ],[
  1933         ],[
  1934         video_opengles_v2=yes
  1935         ])
  1936         AC_MSG_RESULT($video_opengles_v2)
  1937         if test x$video_opengles_v2 = xyes; then
  1938             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1939             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1940             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1941         fi
  1942     fi
  1943 }
  1944 
  1945 dnl Check for Windows OpenGL
  1946 CheckWINDOWSGL()
  1947 {
  1948     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1949         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1950         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1951         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1952         SUMMARY_video="${SUMMARY_video} opengl"
  1953     fi
  1954 }
  1955 
  1956 dnl Check for Windows OpenGL
  1957 CheckWINDOWSGLES()
  1958 {
  1959     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1960 
  1961         AC_MSG_CHECKING(for EGL support)
  1962         video_opengl_egl=no
  1963         AC_TRY_COMPILE([
  1964          #include <EGL/egl.h>
  1965         ],[
  1966         ],[
  1967         video_opengl_egl=yes
  1968         ])
  1969         AC_MSG_RESULT($video_opengl_egl)
  1970         if test x$video_opengl_egl = xyes; then
  1971             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1972             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1973             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1974         fi
  1975        
  1976         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1977         video_opengles_v2=no
  1978         AC_TRY_COMPILE([
  1979          #include <GLES2/gl2.h>
  1980          #include <GLES2/gl2ext.h>
  1981         ],[
  1982         ],[
  1983         video_opengles_v2=yes
  1984         ])
  1985         AC_MSG_RESULT($video_opengles_v2)
  1986         if test x$video_opengles_v2 = xyes; then
  1987             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1988             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1989             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1990             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1991         fi
  1992     fi
  1993 }
  1994 
  1995 dnl Check for Haiku OpenGL
  1996 CheckHaikuGL()
  1997 {
  1998     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1999         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2000         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2001         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2002         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2003         SUMMARY_video="${SUMMARY_video} opengl"
  2004     fi
  2005 }
  2006 
  2007 dnl Check for MacOS OpenGL
  2008 CheckMacGL()
  2009 {
  2010     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2011         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2012         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2013         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2014         SUMMARY_video="${SUMMARY_video} opengl"
  2015         case "$host" in
  2016             *-*-darwin*)
  2017                 if test x$enable_video_cocoa = xyes; then
  2018                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  2019                 fi
  2020         esac
  2021     fi
  2022 }
  2023 
  2024 dnl See if we can use the new unified event interface in Linux 2.4
  2025 CheckInputEvents()
  2026 {
  2027     dnl Check for Linux 2.4 unified input event interface support
  2028         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2029         use_input_events=no
  2030         AC_TRY_COMPILE([
  2031           #include <linux/input.h>
  2032         ],[
  2033           #ifndef EVIOCGNAME
  2034           #error EVIOCGNAME() ioctl not available
  2035           #endif
  2036         ],[
  2037         use_input_events=yes
  2038         ])
  2039         AC_MSG_RESULT($use_input_events)
  2040         if test x$use_input_events = xyes; then
  2041             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2042             SUMMARY_input="${SUMMARY_input} linuxev"
  2043         fi
  2044 }
  2045 
  2046 dnl See if we can use the kernel kd.h header
  2047 CheckInputKD()
  2048 {
  2049 
  2050     AC_MSG_CHECKING(for Linux kd.h)
  2051     use_input_kd=no
  2052     AC_TRY_COMPILE([
  2053       #include <linux/kd.h>
  2054       #include <linux/keyboard.h>
  2055     ],[
  2056         struct kbentry kbe;
  2057         kbe.kb_table = KG_CTRL;
  2058         ioctl(0, KDGKBENT, &kbe);
  2059     ],[
  2060     use_input_kd=yes
  2061     ])
  2062     AC_MSG_RESULT($use_input_kd)
  2063     if test x$use_input_kd = xyes; then
  2064         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2065         SUMMARY_input="${SUMMARY_input} linuxkd"
  2066     fi
  2067 }
  2068 
  2069 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2070 CheckLibUDev()
  2071 {
  2072     AC_ARG_ENABLE(libudev,
  2073 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2074                         , enable_libudev=yes)
  2075     if test x$enable_libudev = xyes; then
  2076         AC_CHECK_HEADER(libudev.h,
  2077                         have_libudev_h_hdr=yes,
  2078                         have_libudev_h_hdr=no)
  2079         if test x$have_libudev_h_hdr = xyes; then
  2080             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2081         fi
  2082     fi
  2083 }
  2084 
  2085 dnl See if the platform offers libdbus for various IPC techniques.
  2086 CheckDBus()
  2087 {
  2088     AC_ARG_ENABLE(dbus,
  2089 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2090                         , enable_dbus=yes)
  2091     if test x$enable_dbus = xyes; then
  2092         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2093         if test x$PKG_CONFIG != xno; then
  2094             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2095             save_CFLAGS="$CFLAGS"
  2096             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2097             AC_CHECK_HEADER(dbus/dbus.h,
  2098                             have_dbus_dbus_h_hdr=yes,
  2099                             have_dbus_dbus_h_hdr=no)
  2100             CFLAGS="$save_CFLAGS"
  2101             if test x$have_dbus_dbus_h_hdr = xyes; then
  2102                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2103                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2104             fi
  2105         fi
  2106     fi
  2107 }
  2108 
  2109 dnl See if we can use the Touchscreen input library
  2110 CheckTslib()
  2111 {
  2112     AC_ARG_ENABLE(input-tslib,
  2113 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2114                   , enable_input_tslib=yes)
  2115     if test x$enable_input_tslib = xyes; then
  2116         AC_MSG_CHECKING(for Touchscreen library support)
  2117         enable_input_tslib=no
  2118         AC_TRY_COMPILE([
  2119           #include "tslib.h"
  2120         ],[
  2121         ],[
  2122         enable_input_tslib=yes
  2123         ])
  2124         AC_MSG_RESULT($enable_input_tslib)
  2125         if test x$enable_input_tslib = xyes; then
  2126             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2127             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2128             SUMMARY_input="${SUMMARY_input} ts"
  2129         fi
  2130     fi
  2131 }
  2132 
  2133 dnl See what type of thread model to use on Linux and Solaris
  2134 CheckPTHREAD()
  2135 {
  2136     dnl Check for pthread support
  2137     AC_ARG_ENABLE(pthreads,
  2138 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2139                   , enable_pthreads=yes)
  2140     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2141     AC_ARG_ENABLE(pthread-sem,
  2142 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2143                   , enable_pthread_sem=yes)
  2144     case "$host" in
  2145         *-*-linux*|*-*-uclinux*)
  2146             pthread_cflags="-D_REENTRANT"
  2147             pthread_lib="-lpthread"
  2148             ;;
  2149         *-*-bsdi*)
  2150             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2151             pthread_lib=""
  2152             ;;
  2153         *-*-darwin*)
  2154             pthread_cflags="-D_THREAD_SAFE"
  2155 # causes Carbon.p complaints?
  2156 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2157             ;;
  2158         *-*-freebsd*|*-*-dragonfly*)
  2159             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2160             pthread_lib="-pthread"
  2161             ;;
  2162         *-*-netbsd*)
  2163             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2164             pthread_lib="-lpthread"
  2165             ;;
  2166         *-*-openbsd*)
  2167             pthread_cflags="-D_REENTRANT"
  2168             pthread_lib="-pthread"
  2169             ;;
  2170         *-*-solaris2.9)
  2171             # From Solaris 9+, posix4's preferred name is rt.
  2172             pthread_cflags="-D_REENTRANT"
  2173             pthread_lib="-lpthread -lrt"
  2174             ;;
  2175         *-*-solaris2.10)
  2176             # Solaris 10+ merged pthread into libc.
  2177             pthread_cflags="-D_REENTRANT"
  2178             pthread_lib="-lrt"
  2179             ;;
  2180         *-*-solaris*)
  2181             # Solaris 11+ merged rt into libc.
  2182             pthread_cflags="-D_REENTRANT"
  2183             pthread_lib=""
  2184             ;;
  2185         *-*-sysv5*)
  2186             pthread_cflags="-D_REENTRANT -Kthread"
  2187             pthread_lib=""
  2188             ;;
  2189         *-*-aix*)
  2190             pthread_cflags="-D_REENTRANT -mthreads"
  2191             pthread_lib="-lpthread"
  2192             ;;
  2193         *-*-hpux11*)
  2194             pthread_cflags="-D_REENTRANT"
  2195             pthread_lib="-L/usr/lib -lpthread"
  2196             ;;
  2197         *-*-haiku*)
  2198             pthread_cflags="-D_REENTRANT"
  2199             pthread_lib=""
  2200             ;;
  2201         *)
  2202             pthread_cflags="-D_REENTRANT"
  2203             pthread_lib="-lpthread"
  2204             ;;
  2205     esac
  2206     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2207         # Save the original compiler flags and libraries
  2208         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2209         # Add the pthread compiler flags and libraries
  2210         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2211         # Check to see if we have pthread support on this system
  2212         AC_MSG_CHECKING(for pthreads)
  2213         use_pthreads=no
  2214         AC_TRY_LINK([
  2215          #include <pthread.h>
  2216         ],[
  2217          pthread_attr_t type;
  2218          pthread_attr_init(&type);
  2219         ],[
  2220         use_pthreads=yes
  2221         ])
  2222         AC_MSG_RESULT($use_pthreads)
  2223         # Restore the compiler flags and libraries
  2224         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2225 
  2226         # Do futher testing if we have pthread support...
  2227         if test x$use_pthreads = xyes; then
  2228             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2229             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2230             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2231             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2232             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2233 
  2234             # Save the original compiler flags and libraries
  2235             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2236             # Add the pthread compiler flags and libraries
  2237             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2238 
  2239             # Check to see if recursive mutexes are available
  2240             AC_MSG_CHECKING(for recursive mutexes)
  2241             has_recursive_mutexes=no
  2242             if test x$has_recursive_mutexes = xno; then
  2243                 AC_TRY_COMPILE([
  2244                   #include <pthread.h>
  2245                 ],[
  2246                   pthread_mutexattr_t attr;
  2247                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2248                 ],[
  2249                 has_recursive_mutexes=yes
  2250                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2251                 ])
  2252             fi
  2253             if test x$has_recursive_mutexes = xno; then
  2254                 AC_TRY_COMPILE([
  2255                   #include <pthread.h>
  2256                 ],[
  2257                   pthread_mutexattr_t attr;
  2258                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2259                 ],[
  2260                 has_recursive_mutexes=yes
  2261                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2262                 ])
  2263             fi
  2264             AC_MSG_RESULT($has_recursive_mutexes)
  2265 
  2266             # Check to see if pthread semaphore support is missing
  2267             if test x$enable_pthread_sem = xyes; then
  2268                 AC_MSG_CHECKING(for pthread semaphores)
  2269                 have_pthread_sem=no
  2270                 AC_TRY_COMPILE([
  2271                   #include <pthread.h>
  2272                   #include <semaphore.h>
  2273                 ],[
  2274                 ],[
  2275                 have_pthread_sem=yes
  2276                 ])
  2277                 AC_MSG_RESULT($have_pthread_sem)
  2278             fi
  2279             if test x$have_pthread_sem = xyes; then
  2280                 AC_MSG_CHECKING(for sem_timedwait)
  2281                 have_sem_timedwait=no
  2282                 AC_TRY_LINK([
  2283                   #include <pthread.h>
  2284                   #include <semaphore.h>
  2285                 ],[
  2286                   sem_timedwait(NULL, NULL);
  2287                 ],[
  2288                 have_sem_timedwait=yes
  2289                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2290                 ])
  2291                 AC_MSG_RESULT($have_sem_timedwait)
  2292             fi
  2293 
  2294             AC_MSG_CHECKING(for pthread_spin_trylock)
  2295             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2296               has_pthread_spin_trylock=yes
  2297               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2298             ],[
  2299               has_pthread_spin_trylock=no
  2300             ])
  2301             AC_MSG_RESULT($has_pthread_spin_trylock)
  2302 
  2303             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2304             if test x$have_pthread_np_h = xyes; then
  2305                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2306             fi
  2307 
  2308             # Check to see if pthread naming is available
  2309             AC_MSG_CHECKING(for pthread_setname_np)
  2310             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2311               has_pthread_setname_np=yes
  2312               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2313             ],[
  2314               has_pthread_setname_np=no
  2315             ])
  2316             AC_MSG_RESULT($has_pthread_setname_np)
  2317 
  2318             AC_MSG_CHECKING(for pthread_set_name_np)
  2319             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2320               has_pthread_set_name_np=yes
  2321               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2322             ],[
  2323               has_pthread_set_name_np=no
  2324             ])
  2325             AC_MSG_RESULT($has_pthread_set_name_np)
  2326 
  2327             # Restore the compiler flags and libraries
  2328             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2329 
  2330             # Basic thread creation functions
  2331             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2332 
  2333             # Semaphores
  2334             # We can fake these with mutexes and condition variables if necessary
  2335             if test x$have_pthread_sem = xyes; then
  2336                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2337             else
  2338                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2339             fi
  2340 
  2341             # Mutexes
  2342             # We can fake these with semaphores if necessary
  2343             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2344 
  2345             # Condition variables
  2346             # We can fake these with semaphores and mutexes if necessary
  2347             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2348 
  2349             # Thread local storage
  2350             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2351 
  2352             have_threads=yes
  2353         fi
  2354     fi
  2355 }
  2356 
  2357 dnl Determine whether the compiler can produce Windows executables
  2358 CheckWINDOWS()
  2359 {
  2360     AC_MSG_CHECKING(Windows compiler)
  2361     have_win32_gcc=no
  2362     AC_TRY_COMPILE([
  2363      #include <windows.h>
  2364     ],[
  2365     ],[
  2366     have_win32_gcc=yes
  2367     ])
  2368     AC_MSG_RESULT($have_win32_gcc)
  2369     if test x$have_win32_gcc != xyes; then
  2370        AC_MSG_ERROR([
  2371 *** Your compiler ($CC) does not produce Windows executables!
  2372        ])
  2373     fi
  2374 
  2375     AC_MSG_CHECKING(Windows CE)
  2376     have_wince=no
  2377     AC_TRY_COMPILE([
  2378 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2379 #error This is not Windows CE
  2380 #endif
  2381     ],[
  2382     ],[
  2383     have_wince=yes
  2384        AC_MSG_ERROR([
  2385 *** Sorry, Windows CE is no longer supported.
  2386        ])
  2387     ])
  2388     AC_MSG_RESULT($have_wince)
  2389 
  2390     # This fixes Windows stack alignment with newer GCC
  2391     CheckStackBoundary
  2392 }
  2393 
  2394 dnl Find the DirectX includes and libraries
  2395 CheckDIRECTX()
  2396 {
  2397     AC_ARG_ENABLE(directx,
  2398 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2399                   , enable_directx=yes)
  2400     if test x$enable_directx = xyes; then
  2401         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2402         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2403         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2404         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2405         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2406 
  2407         SUMMARY_video="${SUMMARY_video} directx"
  2408         SUMMARY_audio="${SUMMARY_audio} directx"
  2409 
  2410         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2411         # FIXME:  ...so force it off for now.
  2412         case "$host" in
  2413             *-*-cygwin*)
  2414             have_dinput=false
  2415             ;;
  2416         esac
  2417     fi
  2418 }
  2419 
  2420 dnl Check for the dlfcn.h interface for dynamically loading objects
  2421 CheckDLOPEN()
  2422 {
  2423     AC_ARG_ENABLE(sdl-dlopen,
  2424 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2425                   , enable_sdl_dlopen=yes)
  2426     if test x$enable_sdl_dlopen = xyes; then
  2427         AC_MSG_CHECKING(for dlopen)
  2428         have_dlopen=no
  2429         AC_TRY_COMPILE([
  2430          #include <dlfcn.h>
  2431         ],[
  2432          void *handle = dlopen("", RTLD_NOW);
  2433          const char *loaderror = (char *) dlerror();
  2434         ],[
  2435         have_dlopen=yes
  2436         ])
  2437         AC_MSG_RESULT($have_dlopen)
  2438 
  2439         if test x$have_dlopen = xyes; then
  2440             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2441                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2442                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2443             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2444             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2445             have_loadso=yes
  2446         fi
  2447     fi
  2448 }
  2449 
  2450 dnl Check for the usbhid(3) library on *BSD
  2451 CheckUSBHID()
  2452 {
  2453     case "$host" in
  2454         *-*-*bsd*)
  2455             if test x$enable_joystick = xyes; then
  2456                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2457                 if test x$have_libusbhid = xyes; then
  2458                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2459                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2460                     USB_LIBS="$USB_LIBS -lusbhid"
  2461                 else
  2462                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2463                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2464                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2465                 fi
  2466                     
  2467                 save_CFLAGS="$CFLAGS"
  2468                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2469 
  2470                 AC_MSG_CHECKING(for usbhid)
  2471                 have_usbhid=no
  2472                 AC_TRY_COMPILE([
  2473                   #include <sys/types.h>
  2474                   #if defined(HAVE_USB_H)
  2475                   #include <usb.h>
  2476                   #endif
  2477                   #ifdef __DragonFly__
  2478                   # include <bus/usb/usb.h>
  2479                   # include <bus/usb/usbhid.h>
  2480                   #else
  2481                   # include <dev/usb/usb.h>
  2482                   # include <dev/usb/usbhid.h>
  2483                   #endif
  2484                   #if defined(HAVE_USBHID_H)
  2485                   #include <usbhid.h>
  2486                   #elif defined(HAVE_LIBUSB_H)
  2487                   #include <libusb.h>
  2488                   #elif defined(HAVE_LIBUSBHID_H)
  2489                   #include <libusbhid.h>
  2490                   #endif
  2491                 ],[
  2492                   struct report_desc *repdesc;
  2493                   struct usb_ctl_report *repbuf;
  2494                   hid_kind_t hidkind;
  2495                 ],[
  2496                 have_usbhid=yes
  2497                 ])
  2498                 AC_MSG_RESULT($have_usbhid)
  2499 
  2500                 if test x$have_usbhid = xyes; then
  2501                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2502                     have_usbhid_ucr_data=no
  2503                     AC_TRY_COMPILE([
  2504                       #include <sys/types.h>
  2505                       #if defined(HAVE_USB_H)
  2506                       #include <usb.h>
  2507                       #endif
  2508                       #ifdef __DragonFly__
  2509                       # include <bus/usb/usb.h>
  2510                       # include <bus/usb/usbhid.h>
  2511                       #else
  2512                       # include <dev/usb/usb.h>
  2513                       # include <dev/usb/usbhid.h>
  2514                       #endif
  2515                       #if defined(HAVE_USBHID_H)
  2516                       #include <usbhid.h>
  2517                       #elif defined(HAVE_LIBUSB_H)
  2518                       #include <libusb.h>
  2519                       #elif defined(HAVE_LIBUSBHID_H)
  2520                       #include <libusbhid.h>
  2521                       #endif
  2522                     ],[
  2523                       struct usb_ctl_report buf;
  2524                       if (buf.ucr_data) { }
  2525                     ],[
  2526                     have_usbhid_ucr_data=yes
  2527                     ])
  2528                     if test x$have_usbhid_ucr_data = xyes; then
  2529                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2530                     fi
  2531                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2532                     
  2533                     AC_MSG_CHECKING(for new usbhid API)
  2534                     have_usbhid_new=no
  2535                     AC_TRY_COMPILE([
  2536                       #include <sys/types.h>
  2537                       #if defined(HAVE_USB_H)
  2538                       #include <usb.h>
  2539                       #endif
  2540                       #ifdef __DragonFly__
  2541                       #include <bus/usb/usb.h>
  2542                       #include <bus/usb/usbhid.h>
  2543                       #else
  2544                       #include <dev/usb/usb.h>
  2545                       #include <dev/usb/usbhid.h>
  2546                       #endif
  2547                       #if defined(HAVE_USBHID_H)
  2548                       #include <usbhid.h>
  2549                       #elif defined(HAVE_LIBUSB_H)
  2550                       #include <libusb.h>
  2551                       #elif defined(HAVE_LIBUSBHID_H)
  2552                       #include <libusbhid.h>
  2553                       #endif
  2554                     ],[
  2555                       report_desc_t d;
  2556                       hid_start_parse(d, 1, 1);
  2557                     ],[
  2558                     have_usbhid_new=yes
  2559                     ])
  2560                     if test x$have_usbhid_new = xyes; then
  2561                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2562                     fi
  2563                     AC_MSG_RESULT($have_usbhid_new)
  2564 
  2565                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2566                     have_machine_joystick=no
  2567                     AC_TRY_COMPILE([
  2568                       #include <machine/joystick.h>
  2569                     ],[
  2570                       struct joystick t;
  2571                     ],[
  2572                     have_machine_joystick=yes
  2573                     ])
  2574                     if test x$have_machine_joystick = xyes; then
  2575                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2576                     fi
  2577                     AC_MSG_RESULT($have_machine_joystick)
  2578 
  2579                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2580                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2581                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2582                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2583                     have_joystick=yes
  2584                 fi
  2585                 CFLAGS="$save_CFLAGS"
  2586             fi
  2587         ;;
  2588     esac
  2589 }
  2590 
  2591 dnl Check for clock_gettime()
  2592 CheckClockGettime()
  2593 {
  2594     AC_ARG_ENABLE(clock_gettime,
  2595 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2596                   , enable_clock_gettime=yes)
  2597     if test x$enable_clock_gettime = xyes; then
  2598         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2599         if test x$have_clock_gettime = xyes; then
  2600             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2601             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2602         else
  2603             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2604             if test x$have_clock_gettime = xyes; then
  2605                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2606                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2607             fi
  2608         fi
  2609     fi
  2610 }
  2611 
  2612 dnl Check for a valid linux/version.h
  2613 CheckLinuxVersion()
  2614 {
  2615     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2616     if test x$have_linux_version_h = xyes; then
  2617         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2618     fi
  2619 }
  2620 
  2621 dnl Check if we want to use RPATH
  2622 CheckRPATH()
  2623 {
  2624     AC_ARG_ENABLE(rpath,
  2625 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2626                   , enable_rpath=yes)
  2627 }
  2628 
  2629 dnl Set up the configuration based on the host platform!
  2630 case "$host" in
  2631     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2632         case "$host" in
  2633             *-raspberry-linux*)
  2634                 # Raspberry Pi
  2635                 ARCH=linux
  2636                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2637                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2638                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2639                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2640                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2641 
  2642                 if test x$enable_video = xyes; then
  2643                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2644                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2645                 fi
  2646                 ;;
  2647             *-*-linux*)         ARCH=linux ;;
  2648             *-*-uclinux*)       ARCH=linux ;;
  2649             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2650             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2651             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2652             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2653             *-*-bsdi*)          ARCH=bsdi ;;
  2654             *-*-freebsd*)       ARCH=freebsd ;;
  2655             *-*-dragonfly*)     ARCH=freebsd ;;
  2656             *-*-netbsd*)        ARCH=netbsd ;;
  2657             *-*-openbsd*)       ARCH=openbsd ;;
  2658             *-*-sysv5*)         ARCH=sysv5 ;;
  2659             *-*-solaris*)       ARCH=solaris ;;
  2660             *-*-hpux*)          ARCH=hpux ;;
  2661             *-*-aix*)           ARCH=aix ;;
  2662             *-*-minix*)         ARCH=minix ;;
  2663         esac
  2664         CheckVisibilityHidden
  2665         CheckDummyVideo
  2666         CheckDiskAudio
  2667         CheckDummyAudio
  2668         CheckDLOPEN
  2669         CheckOSS
  2670         CheckALSA
  2671         CheckPulseAudio
  2672         CheckARTSC
  2673         CheckESD
  2674         CheckNAS
  2675         CheckSNDIO
  2676         CheckX11
  2677         CheckWayland
  2678         CheckMir
  2679         CheckDirectFB
  2680         CheckFusionSound
  2681         CheckOpenGLX11
  2682         CheckOpenGLESX11
  2683         CheckLibUDev
  2684         CheckDBus
  2685         CheckInputEvents
  2686         CheckInputKD
  2687         CheckTslib
  2688         CheckUSBHID
  2689         CheckPTHREAD
  2690         CheckClockGettime
  2691         CheckLinuxVersion
  2692         CheckRPATH
  2693         # Set up files for the audio library
  2694         if test x$enable_audio = xyes; then
  2695           case $ARCH in
  2696             sysv5|solaris|hpux)
  2697                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2698                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2699                 have_audio=yes
  2700             ;;
  2701             netbsd)  # Don't use this on OpenBSD, it's busted.
  2702                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2703                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2704                 have_audio=yes
  2705             ;;
  2706             aix)
  2707                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2708                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2709                 have_audio=yes
  2710             ;;
  2711           esac
  2712         fi
  2713         # Set up files for the joystick library
  2714         if test x$enable_joystick = xyes; then
  2715           case $ARCH in
  2716             linux)
  2717                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2718                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2719                 have_joystick=yes
  2720             ;;
  2721           esac
  2722         fi
  2723         # Set up files for the haptic library
  2724         if test x$enable_haptic = xyes; then
  2725            if test x$use_input_events = xyes; then
  2726              case $ARCH in
  2727                linux)
  2728                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2729                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2730                    have_haptic=yes
  2731                ;;
  2732              esac
  2733            fi
  2734         fi
  2735         # Set up files for the power library
  2736         if test x$enable_power = xyes; then
  2737              case $ARCH in
  2738                linux)
  2739                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2740                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2741                    have_power=yes
  2742                ;;
  2743              esac
  2744         fi
  2745         # Set up files for the filesystem library
  2746         if test x$enable_filesystem = xyes; then
  2747             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2748             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2749             have_filesystem=yes
  2750         fi
  2751         # Set up files for the timer library
  2752         if test x$enable_timers = xyes; then
  2753             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2754             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2755             have_timers=yes
  2756         fi
  2757         # Set up files for udev hotplugging support
  2758         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2759             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2760         fi
  2761         # Set up files for evdev input
  2762         if test x$use_input_events = xyes; then
  2763             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2764         fi       
  2765         ;;
  2766     *-*-cygwin* | *-*-mingw32*)
  2767         ARCH=win32
  2768         if test "$build" != "$host"; then # cross-compiling
  2769             # Default cross-compile location
  2770             ac_default_prefix=/usr/local/cross-tools/$host
  2771         else
  2772             # Look for the location of the tools and install there
  2773             if test "$BUILD_PREFIX" != ""; then
  2774                 ac_default_prefix=$BUILD_PREFIX
  2775             fi
  2776         fi
  2777         CheckDummyVideo
  2778         CheckDiskAudio
  2779         CheckDummyAudio
  2780         CheckWINDOWS
  2781         CheckWINDOWSGL
  2782         CheckWINDOWSGLES
  2783         CheckDIRECTX
  2784 
  2785         # Set up the core platform files
  2786         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2787 
  2788         # Set up files for the video library
  2789         if test x$enable_video = xyes; then
  2790             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2791             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2792             have_video=yes
  2793             AC_ARG_ENABLE(render-d3d,
  2794 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2795                                 , enable_render_d3d=yes)
  2796             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2797                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2798             fi
  2799         fi
  2800         # Set up files for the audio library
  2801         if test x$enable_audio = xyes; then
  2802             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2803             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2804             if test x$have_dsound = xyes; then
  2805                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2806                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2807             fi
  2808             if test x$have_xaudio2 = xyes; then
  2809                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2810                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2811             fi
  2812             have_audio=yes
  2813         fi
  2814         # Set up files for the joystick library
  2815         if test x$enable_joystick = xyes; then
  2816             if test x$have_dinput = xyes; then
  2817                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2818                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2819                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2820             else
  2821                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2822                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2823             fi
  2824             have_joystick=yes
  2825         fi
  2826         if test x$enable_haptic = xyes; then
  2827             if test x$have_dinput = xyes; then
  2828                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2829                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2830                 have_haptic=yes
  2831             fi
  2832         fi
  2833         if test x$enable_power = xyes; then
  2834             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2835             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2836             have_power=yes
  2837         fi
  2838         if test x$enable_filesystem = xyes; then
  2839             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2840             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2841             have_filesystem=yes
  2842         fi
  2843         # Set up files for the thread library
  2844         if test x$enable_threads = xyes; then
  2845             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2846             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2847             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2848             have_threads=yes
  2849         fi
  2850         # Set up files for the timer library
  2851         if test x$enable_timers = xyes; then
  2852             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2853             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2854             have_timers=yes
  2855         fi
  2856         # Set up files for the shared object loading library
  2857         if test x$enable_loadso = xyes; then
  2858             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2859             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2860             have_loadso=yes
  2861         fi
  2862         # Set up the system libraries we need
  2863         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc"
  2864         # The Windows platform requires special setup
  2865         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2866         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2867         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2868         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2869 
  2870         # Check to see if this is a mingw or cygwin build
  2871         have_mingw32=
  2872         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2873         if test x$have_mingw32 = xyes; then
  2874             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2875         else
  2876             SDL_LIBS="-lcygwin $SDL_LIBS"
  2877         fi
  2878         ;;
  2879 
  2880     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2881     *-*-beos*)
  2882         AC_MSG_ERROR([
  2883 *** BeOS support has been removed as of SDL 2.0.2.
  2884         ])
  2885         ;;
  2886 
  2887     *-*-haiku*)
  2888         ARCH=haiku
  2889         ac_default_prefix=/boot/system
  2890         CheckDummyVideo
  2891         CheckDiskAudio
  2892         CheckDummyAudio
  2893         CheckHaikuVideo
  2894         CheckHaikuGL
  2895         CheckPTHREAD
  2896 
  2897         # Set up files for the audio library
  2898         if test x$enable_audio = xyes; then
  2899             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2900             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2901             have_audio=yes
  2902         fi
  2903         # Set up files for the joystick library
  2904         if test x$enable_joystick = xyes; then
  2905             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2906             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2907             have_joystick=yes
  2908         fi
  2909         # Set up files for the timer library
  2910         if test x$enable_timers = xyes; then
  2911             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2912             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2913             have_timers=yes
  2914         fi
  2915         # Set up files for the shared object loading library
  2916         if test x$enable_loadso = xyes; then
  2917             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2918             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2919             have_loadso=yes
  2920         fi
  2921         # Set up files for the system power library
  2922         if test x$enable_power = xyes; then
  2923             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2924             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2925             have_power=yes
  2926         fi
  2927         # Set up files for the system filesystem library
  2928         if test x$enable_filesystem = xyes; then
  2929             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2930             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2931             have_filesystem=yes
  2932         fi
  2933         # The Haiku platform requires special setup.
  2934         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2935         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2936         ;;
  2937     arm*-apple-darwin*)
  2938         # iOS - We are not writing anything to confdefs.h because you have to replace
  2939         # SDL_config.h for SDL_config_iphoneos.h anyway
  2940         ARCH=ios
  2941 
  2942         CheckVisibilityHidden
  2943         CheckDummyVideo
  2944         CheckDiskAudio
  2945         CheckDummyAudio
  2946         CheckDLOPEN
  2947         CheckCOCOA
  2948         CheckPTHREAD
  2949 
  2950 
  2951         # Set up files for the audio library
  2952         if test x$enable_audio = xyes; then
  2953             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2954             have_audio=yes
  2955         fi
  2956         # Set up files for the joystick library
  2957         if test x$enable_joystick = xyes; then
  2958             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2959             have_joystick=yes
  2960         fi
  2961         # Set up files for the haptic library
  2962         #if test x$enable_haptic = xyes; then
  2963         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2964         #    have_haptic=yes
  2965         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2966         #fi
  2967         # Set up files for the power library
  2968         if test x$enable_power = xyes; then
  2969             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2970             have_power=yes
  2971         fi
  2972         # Set up files for the filesystem library
  2973         if test x$enable_filesystem = xyes; then
  2974             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2975             have_filesystem=yes
  2976         fi
  2977         # Set up files for the timer library
  2978         if test x$enable_timers = xyes; then
  2979             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2980             have_timers=yes
  2981         fi
  2982         # Set up additional files for the file library
  2983         if test x$enable_file = xyes; then
  2984             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2985         fi
  2986         # The iOS platform requires special setup.
  2987         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2988         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2989         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2990         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2991         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2992         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2993         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2994         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  2995         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  2996         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  2997         ;;
  2998     *-*-darwin* )
  2999         # This could be either full "Mac OS X", or plain "Darwin" which is
  3000         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3001         # Next line is broken, and a few files below require Mac OS X (full)
  3002         ARCH=macosx
  3003 
  3004         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3005         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3006         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3007 
  3008         CheckVisibilityHidden
  3009         CheckDummyVideo
  3010         CheckDiskAudio
  3011         CheckDummyAudio
  3012         CheckDLOPEN
  3013         CheckCOCOA
  3014         CheckX11
  3015         CheckMacGL
  3016         CheckOpenGLX11
  3017         CheckPTHREAD
  3018 
  3019         # Need this or things might misbuild on a G3.
  3020         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  3021 
  3022         # Set up files for the audio library
  3023         if test x$enable_audio = xyes; then
  3024             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3025             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3026             have_audio=yes
  3027         fi
  3028         # Set up files for the joystick library
  3029         if test x$enable_joystick = xyes; then
  3030             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3031             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3032             have_joystick=yes
  3033         fi
  3034         # Set up files for the haptic library
  3035         if test x$enable_haptic = xyes; then
  3036             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3037             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3038             have_haptic=yes
  3039             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3040         fi
  3041         # Set up files for the power library
  3042         if test x$enable_power = xyes; then
  3043             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3044             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3045             have_power=yes
  3046         fi
  3047         # Set up files for the filesystem library
  3048         if test x$enable_filesystem = xyes; then
  3049             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3050             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3051             have_filesystem=yes
  3052         fi
  3053         # Set up files for the timer library
  3054         if test x$enable_timers = xyes; then
  3055             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3056             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3057             have_timers=yes
  3058         fi
  3059         # Set up additional files for the file library
  3060         if test x$enable_file = xyes; then
  3061             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3062         fi
  3063         # The Mac OS X platform requires special setup.
  3064         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3065         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3066         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3067         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3068         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3069         # If audio is used, add the AudioUnit framework
  3070         if test x$enable_audio = xyes; then
  3071             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3072         fi
  3073         ;;
  3074     *)
  3075         AC_MSG_ERROR([
  3076 *** Unsupported host:  Please add to configure.in
  3077         ])
  3078         ;;
  3079 esac
  3080 
  3081 dnl Do this on all platforms, after everything else.
  3082 CheckWarnAll
  3083 
  3084 # Verify that we have all the platform specific files we need
  3085 
  3086 if test x$have_joystick != xyes; then
  3087     if test x$enable_joystick = xyes; then
  3088         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3089     fi
  3090     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3091 fi
  3092 if test x$have_haptic != xyes; then
  3093     if test x$enable_haptic = xyes; then
  3094         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3095     fi
  3096     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3097 fi
  3098 if test x$have_threads != xyes; then
  3099     if test x$enable_threads = xyes; then
  3100         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3101     fi
  3102     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3103 fi
  3104 if test x$have_timers != xyes; then
  3105     if test x$enable_timers = xyes; then
  3106         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3107     fi
  3108     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3109 fi
  3110 if test x$have_filesystem != xyes; then
  3111     if test x$enable_filesystem = xyes; then
  3112         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3113     fi
  3114     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3115 fi
  3116 if test x$have_loadso != xyes; then
  3117     if test x$enable_loadso = xyes; then
  3118         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3119     fi
  3120     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3121 fi
  3122 if test x$SDLMAIN_SOURCES = x; then
  3123     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3124 fi
  3125 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3126 
  3127 OBJECTS=`echo $SOURCES`
  3128 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3129 for EXT in asm cc m c S; do
  3130     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3131     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3132 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3133 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3134 done
  3135 
  3136 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3137 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3138 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3139 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3140 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3141 	\\$(WINDRES) \\$< \\$@,g"`
  3142 
  3143 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3144 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3145 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3146 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3147 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3148 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3149 
  3150 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3151 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3152 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3153 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3154 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3155 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3156 
  3157 # Set runtime shared library paths as needed
  3158 
  3159 if test "x$enable_rpath" = "xyes"; then
  3160   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3161     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3162   fi
  3163   if test $ARCH = solaris; then
  3164     SDL_RLD_FLAGS="-R\${libdir}"
  3165   fi
  3166 else
  3167   SDL_RLD_FLAGS=""
  3168 fi
  3169 
  3170 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3171 
  3172 dnl Expand the cflags and libraries needed by apps using SDL
  3173 AC_SUBST(SDL_CFLAGS)
  3174 AC_SUBST(SDL_LIBS)
  3175 AC_SUBST(SDL_STATIC_LIBS)
  3176 AC_SUBST(SDL_RLD_FLAGS)
  3177 if test x$enable_shared = xyes; then
  3178     ENABLE_SHARED_TRUE=
  3179     ENABLE_SHARED_FALSE="#"
  3180 else
  3181     ENABLE_SHARED_TRUE="#"
  3182     ENABLE_SHARED_FALSE=
  3183 fi
  3184 if test x$enable_static = xyes; then
  3185     ENABLE_STATIC_TRUE=
  3186     ENABLE_STATIC_FALSE="#"
  3187 else
  3188     ENABLE_STATIC_TRUE="#"
  3189     ENABLE_STATIC_FALSE=
  3190 fi
  3191 AC_SUBST(ENABLE_SHARED_TRUE)
  3192 AC_SUBST(ENABLE_SHARED_FALSE)
  3193 AC_SUBST(ENABLE_STATIC_TRUE)
  3194 AC_SUBST(ENABLE_STATIC_FALSE)
  3195 
  3196 dnl Expand the sources and objects needed to build the library
  3197 AC_SUBST(ac_aux_dir)
  3198 AC_SUBST(INCLUDE)
  3199 AC_SUBST(OBJECTS)
  3200 AC_SUBST(VERSION_OBJECTS)
  3201 AC_SUBST(SDLMAIN_OBJECTS)
  3202 AC_SUBST(SDLTEST_OBJECTS)
  3203 AC_SUBST(BUILD_CFLAGS)
  3204 AC_SUBST(EXTRA_CFLAGS)
  3205 AC_SUBST(BUILD_LDFLAGS)
  3206 AC_SUBST(EXTRA_LDFLAGS)
  3207 AC_SUBST(WINDRES)
  3208 
  3209 cat >Makefile.rules <<__EOF__
  3210 
  3211 # Build rules for objects
  3212 -include \$(OBJECTS:.lo=.d)
  3213 
  3214 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3215 $srcdir/src/SDL.c: update-revision
  3216 $DEPENDS
  3217 $VERSION_DEPENDS
  3218 $SDLMAIN_DEPENDS
  3219 $SDLTEST_DEPENDS
  3220 __EOF__
  3221 
  3222 AC_CONFIG_FILES([
  3223     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3224 ])
  3225 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3226 
  3227 SUMMARY="SDL2 Configure Summary:\n"
  3228 if test x$enable_shared = xyes; then
  3229     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3230 fi
  3231 if test x$enable_static = xyes; then
  3232     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3233 fi
  3234 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3235 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3236 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3237 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3238 if test x$have_x = xyes; then
  3239     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3240 fi
  3241 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3242 if test x$enable_libudev = xyes; then
  3243     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3244 else
  3245     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3246 fi
  3247 if test x$have_dbus_dbus_h_hdr = xyes; then
  3248     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3249 else
  3250     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3251 fi
  3252 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3253 
  3254 AC_OUTPUT