configure.in
author Gabriel Jacobo <gabomdq@gmail.com>
Thu, 30 Jan 2014 20:27:13 -0300
changeset 8146 bfff4df36f0b
parent 8124 5226058345bf
child 8147 9802c269104f
permissions -rw-r--r--
Detect Xrandr >= 1.2 at build time
     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="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 
  1128 dnl See if GCC's -Wall is supported.
  1129 CheckWarnAll()
  1130 {
  1131     AC_MSG_CHECKING(for GCC -Wall option)
  1132     have_gcc_Wall=no
  1133 
  1134     save_CFLAGS="$CFLAGS"
  1135     CFLAGS="$save_CFLAGS -Wall"
  1136     AC_TRY_COMPILE([
  1137     int x = 0;
  1138     ],[
  1139     ],[
  1140     have_gcc_Wall=yes
  1141     ])
  1142     AC_MSG_RESULT($have_gcc_Wall)
  1143     CFLAGS="$save_CFLAGS"
  1144 
  1145     if test x$have_gcc_Wall = xyes; then
  1146         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1147 
  1148         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1149         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1150         need_gcc_Wno_multichar=no
  1151         case "$host" in
  1152             *-*-haiku*)
  1153                 need_gcc_Wno_multichar=yes
  1154                 ;;
  1155         esac
  1156         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1157         if test x$need_gcc_Wno_multichar = xyes; then
  1158             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1159         fi
  1160     fi
  1161 }
  1162 
  1163 dnl Check for Wayland
  1164 CheckWayland()
  1165 {
  1166     AC_ARG_ENABLE(video-wayland,
  1167 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1168                   ,enable_video_wayland=yes)
  1169 
  1170     AC_ARG_ENABLE(video-wayland-qt-touch,
  1171 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1172                   ,enable_video_wayland_qt_touch=yes)
  1173 
  1174     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1175         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1176         AC_MSG_CHECKING(for Wayland support)
  1177         video_wayland=no
  1178         if test x$PKG_CONFIG != xno; then
  1179             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1180                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1181                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1182                 video_wayland=yes
  1183             fi
  1184         fi
  1185         AC_MSG_RESULT($video_wayland)
  1186 
  1187         if test x$video_wayland = xyes; then
  1188             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1189             if test x$enable_video_wayland_qt_touch = xyes; then
  1190                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1191             fi
  1192             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1193             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1194             AC_ARG_ENABLE(wayland-shared,
  1195 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1196                           , enable_wayland_shared=maybe)
  1197 
  1198             dnl FIXME: Do BSD and OS X need special cases?
  1199             case "$host" in
  1200                 *)
  1201                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1202                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1203                     if test x$wayland_egl_lib = x; then
  1204                         dnl This works in Ubuntu 13.10, maybe others
  1205                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1206                     fi
  1207                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1208                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1209                     ;;
  1210             esac
  1211 
  1212             if test x$enable_wayland_shared = xmaybe; then
  1213                 enable_wayland_shared=yes
  1214             fi
  1215             if test x$have_loadso != xyes && \
  1216                test x$enable_wayland_shared = xyes; then
  1217                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic WAYLAND loading])
  1218                 enable_wayland_shared=no
  1219             fi
  1220             if test x$have_loadso = xyes && \
  1221                test x$enable_wayland_shared = xyes && \
  1222                test x$wayland_client_lib != x && \
  1223                test x$wayland_egl_lib != x && \
  1224                test x$wayland_cursor_lib != x && \
  1225                test x$xkbcommon_lib != x; then
  1226                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1227                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1228                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1229                 echo "-- dynamic xkbcommon -> $xkbcommon_lib"
  1230                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1231                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1232                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1233                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1234                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1235             else
  1236                 enable_wayland_shared=no
  1237                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1238                 SUMMARY_video="${SUMMARY_video} wayland"
  1239             fi
  1240             have_video=yes
  1241         fi
  1242     fi
  1243 }
  1244 
  1245 dnl Find the X11 include and library directories
  1246 CheckX11()
  1247 {
  1248 
  1249 
  1250     AC_ARG_ENABLE(video-x11,
  1251 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1252                   , enable_video_x11=yes)
  1253     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1254         case "$host" in
  1255             *-*-darwin*)
  1256                 # This isn't necessary for X11, but fixes GLX detection
  1257                 if test "x$x_includes" = xNONE && \
  1258                    test "x$x_libraries" = xNONE && \
  1259                    test -d /usr/X11R6/include && \
  1260                    test -d /usr/X11R6/lib; then
  1261                     x_includes="/usr/X11R6/include"
  1262                     x_libraries="/usr/X11R6/lib"
  1263                 fi
  1264                 ;;
  1265         esac
  1266         AC_PATH_X
  1267         AC_PATH_XTRA
  1268         if test x$have_x = xyes; then
  1269             AC_ARG_ENABLE(x11-shared,
  1270 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1271                           , enable_x11_shared=maybe)
  1272 
  1273             case "$host" in
  1274                 *-*-darwin*)
  1275                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1276                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1277                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1278                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1279                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1280                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1281                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1282                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1283                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1284                     ;;
  1285                 *-*-openbsd*)
  1286                     x11_lib='libX11.so'
  1287                     x11ext_lib='libXext.so'
  1288                     xcursor_lib='libXcursor.so'
  1289                     xinerama_lib='libXinerama.so'
  1290                     xinput_lib='libXi.so'
  1291                     xrandr_lib='libXrandr.so'
  1292                     xrender_lib='libXrender.so'
  1293                     xss_lib='libXss.so'
  1294                     xvidmode_lib='libXxf86vm.so'
  1295                     ;;
  1296                 *)
  1297                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1298                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1299                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1300                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1301                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1302                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1303                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1304                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1305                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1306                     ;;
  1307             esac
  1308 
  1309             if test x$ac_cv_func_shmat != xyes; then
  1310                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1311             fi
  1312             CFLAGS="$CFLAGS $X_CFLAGS"
  1313             LDFLAGS="$LDFLAGS $X_LIBS"
  1314 
  1315             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1316                             have_xext_h_hdr=yes,
  1317                             have_xext_h_hdr=no,
  1318                             [#include <X11/Xlib.h>
  1319                              #include <X11/Xproto.h>
  1320                             ])
  1321             if test x$have_xext_h_hdr != xyes; then
  1322                AC_MSG_ERROR([
  1323 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1324                ])
  1325             fi
  1326 
  1327             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1328             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1329             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1330 
  1331             # Needed so SDL applications can include SDL_syswm.h
  1332             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1333 
  1334             if test x$enable_x11_shared = xmaybe; then
  1335                 enable_x11_shared=yes
  1336             fi
  1337             if test x$have_loadso != xyes && \
  1338                test x$enable_x11_shared = xyes; then
  1339                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1340                 enable_x11_shared=no
  1341             fi
  1342             if test x$have_loadso = xyes && \
  1343                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1344                 echo "-- dynamic libX11 -> $x11_lib"
  1345                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1346                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1347                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1348                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1349             else
  1350                 enable_x11_shared=no
  1351                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1352                 SUMMARY_video="${SUMMARY_video} x11"
  1353             fi
  1354             have_video=yes
  1355 
  1356             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1357             have_const_param_XextAddDisplay=no
  1358             AC_TRY_COMPILE([
  1359               #include <X11/Xlib.h>
  1360               #include <X11/Xproto.h>
  1361               #include <X11/extensions/Xext.h>
  1362               #include <X11/extensions/extutil.h>
  1363               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1364             ],[
  1365             ],[
  1366             have_const_param_XextAddDisplay=yes
  1367             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1368             ])
  1369             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1370 
  1371             AC_MSG_CHECKING(for const parameter to _XData32)
  1372 	    have_const_param_xdata32=no
  1373 	    AC_TRY_COMPILE([
  1374 	      #include <X11/Xlibint.h>
  1375 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1376 	    ],[
  1377 	    ],[
  1378 	    have_const_param_xdata32=yes
  1379 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1380 	    ])
  1381 	    AC_MSG_RESULT($have_const_param_xdata32)
  1382 
  1383             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1384             AC_MSG_CHECKING([for XGenericEvent])
  1385             have_XGenericEvent=no
  1386             AC_TRY_COMPILE([
  1387               	#include <X11/Xlib.h>
  1388             ],[
  1389 Display *display;
  1390 XEvent event;
  1391 XGenericEventCookie *cookie = &event.xcookie;
  1392 XNextEvent(display, &event);
  1393 XGetEventData(display, cookie);
  1394 XFreeEventData(display, cookie);
  1395             ],[
  1396                 have_XGenericEvent=yes
  1397                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1398             ])
  1399             AC_MSG_RESULT($have_XGenericEvent)
  1400 
  1401             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1402 
  1403             AC_ARG_ENABLE(video-x11-xcursor,
  1404 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1405                             , enable_video_x11_xcursor=yes)
  1406             if test x$enable_video_x11_xcursor = xyes; then
  1407                 definitely_enable_video_x11_xcursor=no
  1408                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1409                                 have_xcursor_h_hdr=yes,
  1410                                 have_xcursor_h_hdr=no,
  1411                                 [#include <X11/Xlib.h>
  1412                                 ])
  1413                 if test x$have_xcursor_h_hdr = xyes; then
  1414                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1415                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1416                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1417                         definitely_enable_video_x11_xcursor=yes
  1418                     else
  1419                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1420                         if test x$have_xcursor_lib = xyes ; then
  1421                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1422                             definitely_enable_video_x11_xcursor=yes
  1423                         fi
  1424                     fi
  1425                 fi
  1426             fi
  1427             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1428                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1429                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1430             fi
  1431             AC_ARG_ENABLE(video-x11-xinerama,
  1432 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1433                             , enable_video_x11_xinerama=yes)
  1434             if test x$enable_video_x11_xinerama = xyes; then
  1435                 definitely_enable_video_x11_xinerama=no
  1436                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1437                                 have_xinerama_h_hdr=yes,
  1438                                 have_xinerama_h_hdr=no,
  1439                                 [#include <X11/Xlib.h>
  1440                                 ])
  1441                 if test x$have_xinerama_h_hdr = xyes; then
  1442                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1443                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1444                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1445                         definitely_enable_video_x11_xinerama=yes
  1446                     else
  1447                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1448                         if test x$have_xinerama_lib = xyes ; then
  1449                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1450                             definitely_enable_video_x11_xinerama=yes
  1451                         fi
  1452                     fi
  1453                 fi
  1454             fi
  1455             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1456                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1457                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1458             fi
  1459             AC_ARG_ENABLE(video-x11-xinput,
  1460 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1461                             , enable_video_x11_xinput=yes)
  1462             if test x$enable_video_x11_xinput = xyes; then
  1463                 definitely_enable_video_x11_xinput=no
  1464                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1465                                 have_xinput_h_hdr=yes,
  1466                                 have_xinput_h_hdr=no,
  1467                                 [#include <X11/Xlib.h>
  1468                                 ])
  1469                 if test x$have_xinput_h_hdr = xyes; then
  1470                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1471                         echo "-- dynamic libXi -> $xinput_lib"
  1472                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1473                         definitely_enable_video_x11_xinput=yes
  1474                     else
  1475                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1476                         if test x$have_xinput_lib = xyes ; then
  1477                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1478                             definitely_enable_video_x11_xinput=yes
  1479                         fi
  1480                     fi
  1481                 fi
  1482             fi
  1483             if test x$definitely_enable_video_x11_xinput = xyes; then
  1484                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1485                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1486                 AC_MSG_CHECKING(for xinput2 multitouch)
  1487             	have_xinput2_multitouch=no
  1488             	AC_TRY_COMPILE([
  1489               		#include <X11/Xlib.h>
  1490              		#include <X11/Xproto.h>
  1491 			#include <X11/extensions/XInput2.h>
  1492             	],[
  1493 int event_type = XI_TouchBegin;
  1494 XITouchClassInfo *t;
  1495 Status 
  1496 XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f)
  1497 {
  1498     return (Status)0;
  1499 }
  1500             	],[
  1501             	have_xinput2_multitouch=yes
  1502             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1503                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1504             	])
  1505             	AC_MSG_RESULT($have_xinput2_multitouch)
  1506             fi
  1507             AC_ARG_ENABLE(video-x11-xrandr,
  1508 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1509                             , enable_video_x11_xrandr=yes)
  1510             if test x$enable_video_x11_xrandr = xyes; then
  1511                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1512                 definitely_enable_video_x11_xrandr=no
  1513                 have_xrandr_h_hdr=no
  1514                 AC_TRY_COMPILE([
  1515                 #include <X11/Xlib.h>
  1516                 #include <X11/extensions/Xrandr.h>
  1517                 ],[
  1518                 XRRScreenResources *res = NULL;
  1519                 ],[
  1520                 have_xrandr_h_hdr=yes
  1521                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1522                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1523                 ])
  1524                 if test x$have_xrandr_h_hdr = xyes; then
  1525                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1526                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1527                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1528                         definitely_enable_video_x11_xrandr=yes
  1529                     else
  1530                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1531                         if test x$have_xrandr_lib = xyes ; then
  1532                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1533                             definitely_enable_video_x11_xrandr=yes
  1534                         fi
  1535                     fi
  1536                 fi
  1537             fi
  1538             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1539                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1540                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1541             fi
  1542             AC_ARG_ENABLE(video-x11-scrnsaver,
  1543 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1544                             , enable_video_x11_scrnsaver=yes)
  1545             if test x$enable_video_x11_scrnsaver = xyes; then
  1546                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1547                                 have_scrnsaver_h_hdr=yes,
  1548                                 have_scrnsaver_h_hdr=no,
  1549                                 [#include <X11/Xlib.h>
  1550                                 ])
  1551                 if test x$have_scrnsaver_h_hdr = xyes; then
  1552                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1553                         echo "-- dynamic libXss -> $xss_lib"
  1554                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1555                         definitely_enable_video_x11_scrnsaver=yes
  1556                     else
  1557                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1558                         if test x$have_xss_lib = xyes ; then
  1559                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1560                             definitely_enable_video_x11_scrnsaver=yes
  1561                         fi
  1562                     fi
  1563                 fi
  1564             fi
  1565             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1566                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1567                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1568             fi
  1569             AC_ARG_ENABLE(video-x11-xshape,
  1570 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1571                             , enable_video_x11_xshape=yes)
  1572             if test x$enable_video_x11_xshape = xyes; then
  1573                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1574                                 have_shape_h_hdr=yes,
  1575                                 have_shape_h_hdr=no,
  1576                                 [#include <X11/Xlib.h>
  1577                                 ])
  1578                 if test x$have_shape_h_hdr = xyes; then
  1579                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1580                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1581                 fi
  1582             fi
  1583             AC_ARG_ENABLE(video-x11-vm,
  1584 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1585                             , enable_video_x11_vm=yes)
  1586             if test x$enable_video_x11_vm = xyes; then
  1587                 definitely_enable_video_x11_vm=no
  1588                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1589                                 have_vm_h_hdr=yes,
  1590                                 have_vm_h_hdr=no,
  1591                                 [#include <X11/Xlib.h>
  1592                                 ])
  1593                 if test x$have_vm_h_hdr = xyes; then
  1594                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1595                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1596                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1597                         definitely_enable_video_x11_vm=yes
  1598                     else
  1599                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1600                         if test x$have_vm_lib = xyes ; then
  1601                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1602                             definitely_enable_video_x11_vm=yes
  1603                         fi
  1604                     fi
  1605                 fi
  1606             fi
  1607             if test x$definitely_enable_video_x11_vm = xyes; then
  1608                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1609                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1610             fi
  1611         fi
  1612     fi
  1613 }
  1614 
  1615 dnl Set up the Haiku video driver if enabled
  1616 CheckHaikuVideo()
  1617 {
  1618     if test x$enable_video = xyes; then
  1619         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1620         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1621         have_video=yes
  1622         SUMMARY_video="${SUMMARY_video} haiku"
  1623     fi
  1624 }
  1625 
  1626 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1627 CheckCOCOA()
  1628 {
  1629     AC_ARG_ENABLE(video-cocoa,
  1630 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1631                   , enable_video_cocoa=yes)
  1632     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1633         save_CFLAGS="$CFLAGS"
  1634         dnl work around that we don't have Objective-C support in autoconf
  1635         CFLAGS="$CFLAGS -x objective-c"
  1636         AC_MSG_CHECKING(for Cocoa framework)
  1637         have_cocoa=no
  1638         AC_TRY_COMPILE([
  1639           #import <Cocoa/Cocoa.h>
  1640         ],[
  1641         ],[
  1642         have_cocoa=yes
  1643         ])
  1644         AC_MSG_RESULT($have_cocoa)
  1645         CFLAGS="$save_CFLAGS"
  1646         if test x$have_cocoa = xyes; then
  1647             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1648             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1649             SUMMARY_video="${SUMMARY_video} cocoa"
  1650             have_video=yes
  1651         fi
  1652     fi
  1653 }
  1654 
  1655 dnl Find DirectFB
  1656 CheckDirectFB()
  1657 {
  1658     AC_ARG_ENABLE(video-directfb,
  1659 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1660                   , enable_video_directfb=no)
  1661     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1662         video_directfb=no
  1663 
  1664         DIRECTFB_REQUIRED_VERSION=1.0.0
  1665         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1666         if test x$DIRECTFBCONFIG = xno; then
  1667             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1668             if test x$PKG_CONFIG != xno; then
  1669                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1670                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1671                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1672                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1673                     video_directfb=yes
  1674                 fi
  1675             fi
  1676         else
  1677             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1678             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1679             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1680             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1681             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1682                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1683                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1684                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1685                 video_directfb=yes
  1686             fi
  1687         fi
  1688         if test x$video_directfb = xyes; then
  1689             # SuSE 11.1 installs directfb-config without directfb-devel
  1690             save_CPPFLAGS="$CPPFLAGS"
  1691             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1692             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1693             CPPFLAGS="$save_CPPFLAGS"
  1694             video_directfb=$have_directfb_hdr
  1695         fi
  1696         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1697         AC_MSG_RESULT($video_directfb)
  1698 
  1699         if test x$video_directfb = xyes; then
  1700             AC_ARG_ENABLE(directfb-shared,
  1701 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1702                               , enable_directfb_shared=yes)
  1703 
  1704             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1705             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1706             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1707             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1708 
  1709             AC_MSG_CHECKING(for directfb dynamic loading support)
  1710             directfb_shared=no
  1711             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1712             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1713 AC_MSG_WARN("directfb $directfb_lib")
  1714             if test x$have_loadso != xyes && \
  1715                test x$enable_directfb_shared = xyes; then
  1716                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1717             fi
  1718             if test x$have_loadso = xyes && \
  1719                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1720                 directfb_shared=yes
  1721                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1722                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1723                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1724             else
  1725                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1726                 SUMMARY_video="${SUMMARY_video} directfb"
  1727             fi
  1728             AC_MSG_RESULT($directfb_shared)
  1729             have_video=yes
  1730         fi
  1731     fi
  1732 }
  1733 
  1734 dnl Find FusionSound
  1735 CheckFusionSound()
  1736 {
  1737     AC_ARG_ENABLE(fusionsound,
  1738 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1739                   , enable_fusionsound=no)
  1740     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1741         fusionsound=no
  1742 
  1743         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1744 
  1745         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1746         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1747         if test x$PKG_CONFIG != xno; then
  1748             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1749                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1750                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1751                 fusionsound=yes
  1752             fi
  1753         fi
  1754         AC_MSG_RESULT($fusionsound)
  1755 
  1756         if test x$fusionsound = xyes; then
  1757             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1758             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1759             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1760             
  1761             AC_ARG_ENABLE(fusionsound-shared,
  1762 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1763                           , enable_fusionsound_shared=yes)
  1764             fusionsound_shared=no
  1765             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1766             if test x$have_loadso != xyes && \
  1767                test x$enable_fusionsound_shared = xyes; then
  1768                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1769             fi
  1770             if test x$have_loadso = xyes && \
  1771                test x$enable_fusionsound_shared = xyes; then
  1772                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1773                 fusionsound_shared=yes
  1774                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1775             else
  1776                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1777                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1778             fi
  1779             AC_MSG_RESULT($fusionsound_shared)
  1780             
  1781             have_audio=yes
  1782         fi
  1783     fi
  1784 }
  1785 
  1786 dnl rcg04172001 Set up the Null video driver.
  1787 CheckDummyVideo()
  1788 {
  1789     AC_ARG_ENABLE(video-dummy,
  1790 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1791                   , enable_video_dummy=yes)
  1792     if test x$enable_video_dummy = xyes; then
  1793         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1794         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1795         have_video=yes
  1796         SUMMARY_video="${SUMMARY_video} dummy"
  1797     fi
  1798 }
  1799 
  1800 dnl Check to see if OpenGL support is desired
  1801 AC_ARG_ENABLE(video-opengl,
  1802 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1803               , enable_video_opengl=yes)
  1804 
  1805 dnl Find OpenGL
  1806 CheckOpenGLX11()
  1807 {
  1808     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1809         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1810         video_opengl=no
  1811         AC_TRY_COMPILE([
  1812          #include <GL/gl.h>
  1813          #include <GL/glx.h>
  1814         ],[
  1815         ],[
  1816         video_opengl=yes
  1817         ])
  1818         AC_MSG_RESULT($video_opengl)
  1819         if test x$video_opengl = xyes; then
  1820             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1821             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1822             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1823             SUMMARY_video="${SUMMARY_video} opengl"
  1824         fi
  1825     fi
  1826 }
  1827 
  1828 dnl Check to see if OpenGL ES support is desired
  1829 AC_ARG_ENABLE(video-opengles,
  1830 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1831               , enable_video_opengles=yes)
  1832 
  1833 dnl Find OpenGL ES
  1834 CheckOpenGLESX11()
  1835 {
  1836     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1837         AC_MSG_CHECKING(for EGL support)
  1838         video_opengl_egl=no
  1839         AC_TRY_COMPILE([
  1840          #include <EGL/egl.h>
  1841         ],[
  1842         ],[
  1843         video_opengl_egl=yes
  1844         ])
  1845         AC_MSG_RESULT($video_opengl_egl)
  1846         if test x$video_opengl_egl = xyes; then
  1847             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1848         fi
  1849             
  1850         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1851         video_opengles_v1=no
  1852         AC_TRY_COMPILE([
  1853          #include <GLES/gl.h>
  1854          #include <GLES/glext.h>
  1855         ],[
  1856         ],[
  1857         video_opengles_v1=yes
  1858         ])
  1859         AC_MSG_RESULT($video_opengles_v1)
  1860         if test x$video_opengles_v1 = xyes; then
  1861             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1862             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1863             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1864         fi
  1865         
  1866         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1867         video_opengles_v2=no
  1868         AC_TRY_COMPILE([
  1869          #include <GLES2/gl2.h>
  1870          #include <GLES2/gl2ext.h>
  1871         ],[
  1872         ],[
  1873         video_opengles_v2=yes
  1874         ])
  1875         AC_MSG_RESULT($video_opengles_v2)
  1876         if test x$video_opengles_v2 = xyes; then
  1877             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1878             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1879             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1880         fi
  1881     fi
  1882 }
  1883 
  1884 dnl Check for Windows OpenGL
  1885 CheckWINDOWSGL()
  1886 {
  1887     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1888         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1889         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1890         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1891         SUMMARY_video="${SUMMARY_video} opengl"
  1892     fi
  1893 }
  1894 
  1895 dnl Check for Windows OpenGL
  1896 CheckWINDOWSGLES()
  1897 {
  1898     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1899 
  1900         AC_MSG_CHECKING(for EGL support)
  1901         video_opengl_egl=no
  1902         AC_TRY_COMPILE([
  1903          #include <EGL/egl.h>
  1904         ],[
  1905         ],[
  1906         video_opengl_egl=yes
  1907         ])
  1908         AC_MSG_RESULT($video_opengl_egl)
  1909         if test x$video_opengl_egl = xyes; then
  1910             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1911             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1912             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1913         fi
  1914        
  1915         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1916         video_opengles_v2=no
  1917         AC_TRY_COMPILE([
  1918          #include <GLES2/gl2.h>
  1919          #include <GLES2/gl2ext.h>
  1920         ],[
  1921         ],[
  1922         video_opengles_v2=yes
  1923         ])
  1924         AC_MSG_RESULT($video_opengles_v2)
  1925         if test x$video_opengles_v2 = xyes; then
  1926             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1927             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1928             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1929             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1930         fi
  1931     fi
  1932 }
  1933 
  1934 dnl Check for Haiku OpenGL
  1935 CheckHaikuGL()
  1936 {
  1937     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1938         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1939         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  1940         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1941         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1942         SUMMARY_video="${SUMMARY_video} opengl"
  1943     fi
  1944 }
  1945 
  1946 dnl Check for MacOS OpenGL
  1947 CheckMacGL()
  1948 {
  1949     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1950         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1951         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  1952         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1953         SUMMARY_video="${SUMMARY_video} opengl"
  1954         case "$host" in
  1955             *-*-darwin*)
  1956                 if test x$enable_video_cocoa = xyes; then
  1957                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  1958                 fi
  1959         esac
  1960     fi
  1961 }
  1962 
  1963 dnl See if we can use the new unified event interface in Linux 2.4
  1964 CheckInputEvents()
  1965 {
  1966     dnl Check for Linux 2.4 unified input event interface support
  1967         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  1968         use_input_events=no
  1969         AC_TRY_COMPILE([
  1970           #include <linux/input.h>
  1971         ],[
  1972           #ifndef EVIOCGNAME
  1973           #error EVIOCGNAME() ioctl not available
  1974           #endif
  1975         ],[
  1976         use_input_events=yes
  1977         ])
  1978         AC_MSG_RESULT($use_input_events)
  1979         if test x$use_input_events = xyes; then
  1980             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  1981             SUMMARY_input="${SUMMARY_input} linuxev"
  1982         fi
  1983 }
  1984 
  1985 dnl See if we can use the kernel kd.h header
  1986 CheckInputKD()
  1987 {
  1988 
  1989     AC_MSG_CHECKING(for Linux kd.h)
  1990     use_input_kd=no
  1991     AC_TRY_COMPILE([
  1992       #include <linux/kd.h>
  1993       #include <linux/keyboard.h>
  1994     ],[
  1995         struct kbentry kbe;
  1996         kbe.kb_table = KG_CTRL;
  1997         ioctl(0, KDGKBENT, &kbe);
  1998     ],[
  1999     use_input_kd=yes
  2000     ])
  2001     AC_MSG_RESULT($use_input_kd)
  2002     if test x$use_input_kd = xyes; then
  2003         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2004         SUMMARY_input="${SUMMARY_input} linuxkd"
  2005     fi
  2006 }
  2007 
  2008 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2009 CheckLibUDev()
  2010 {
  2011     AC_ARG_ENABLE(libudev,
  2012 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2013                         , enable_libudev=yes)
  2014     if test x$enable_libudev = xyes; then
  2015         AC_CHECK_HEADER(libudev.h,
  2016                         have_libudev_h_hdr=yes,
  2017                         have_libudev_h_hdr=no)
  2018         if test x$have_libudev_h_hdr = xyes; then
  2019             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2020         fi
  2021     fi
  2022 }
  2023 
  2024 dnl See if the platform offers libdbus for various IPC techniques.
  2025 CheckDBus()
  2026 {
  2027     AC_ARG_ENABLE(dbus,
  2028 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2029                         , enable_dbus=yes)
  2030     if test x$enable_dbus = xyes; then
  2031         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2032         if test x$PKG_CONFIG != xno; then
  2033             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2034             save_CFLAGS="$CFLAGS"
  2035             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2036             AC_CHECK_HEADER(dbus/dbus.h,
  2037                             have_dbus_dbus_h_hdr=yes,
  2038                             have_dbus_dbus_h_hdr=no)
  2039             CFLAGS="$save_CFLAGS"
  2040             if test x$have_dbus_dbus_h_hdr = xyes; then
  2041                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2042                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2043             fi
  2044         fi
  2045     fi
  2046 }
  2047 
  2048 dnl See if we can use the Touchscreen input library
  2049 CheckTslib()
  2050 {
  2051     AC_ARG_ENABLE(input-tslib,
  2052 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2053                   , enable_input_tslib=yes)
  2054     if test x$enable_input_tslib = xyes; then
  2055         AC_MSG_CHECKING(for Touchscreen library support)
  2056         enable_input_tslib=no
  2057         AC_TRY_COMPILE([
  2058           #include "tslib.h"
  2059         ],[
  2060         ],[
  2061         enable_input_tslib=yes
  2062         ])
  2063         AC_MSG_RESULT($enable_input_tslib)
  2064         if test x$enable_input_tslib = xyes; then
  2065             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2066             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2067             SUMMARY_input="${SUMMARY_input} ts"
  2068         fi
  2069     fi
  2070 }
  2071 
  2072 dnl See what type of thread model to use on Linux and Solaris
  2073 CheckPTHREAD()
  2074 {
  2075     dnl Check for pthread support
  2076     AC_ARG_ENABLE(pthreads,
  2077 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2078                   , enable_pthreads=yes)
  2079     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2080     AC_ARG_ENABLE(pthread-sem,
  2081 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2082                   , enable_pthread_sem=yes)
  2083     case "$host" in
  2084         *-*-linux*|*-*-uclinux*)
  2085             pthread_cflags="-D_REENTRANT"
  2086             pthread_lib="-lpthread"
  2087             ;;
  2088         *-*-bsdi*)
  2089             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2090             pthread_lib=""
  2091             ;;
  2092         *-*-darwin*)
  2093             pthread_cflags="-D_THREAD_SAFE"
  2094 # causes Carbon.p complaints?
  2095 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2096             ;;
  2097         *-*-freebsd*|*-*-dragonfly*)
  2098             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2099             pthread_lib="-pthread"
  2100             ;;
  2101         *-*-netbsd*)
  2102             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2103             pthread_lib="-lpthread"
  2104             ;;
  2105         *-*-openbsd*)
  2106             pthread_cflags="-D_REENTRANT"
  2107             pthread_lib="-pthread"
  2108             ;;
  2109         *-*-solaris2.9)
  2110             # From Solaris 9+, posix4's preferred name is rt.
  2111             pthread_cflags="-D_REENTRANT"
  2112             pthread_lib="-lpthread -lrt"
  2113             ;;
  2114         *-*-solaris2.10)
  2115             # Solaris 10+ merged pthread into libc.
  2116             pthread_cflags="-D_REENTRANT"
  2117             pthread_lib="-lrt"
  2118             ;;
  2119         *-*-solaris*)
  2120             # Solaris 11+ merged rt into libc.
  2121             pthread_cflags="-D_REENTRANT"
  2122             pthread_lib=""
  2123             ;;
  2124         *-*-sysv5*)
  2125             pthread_cflags="-D_REENTRANT -Kthread"
  2126             pthread_lib=""
  2127             ;;
  2128         *-*-aix*)
  2129             pthread_cflags="-D_REENTRANT -mthreads"
  2130             pthread_lib="-lpthread"
  2131             ;;
  2132         *-*-hpux11*)
  2133             pthread_cflags="-D_REENTRANT"
  2134             pthread_lib="-L/usr/lib -lpthread"
  2135             ;;
  2136         *-*-haiku*)
  2137             pthread_cflags="-D_REENTRANT"
  2138             pthread_lib=""
  2139             ;;
  2140         *)
  2141             pthread_cflags="-D_REENTRANT"
  2142             pthread_lib="-lpthread"
  2143             ;;
  2144     esac
  2145     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2146         # Save the original compiler flags and libraries
  2147         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2148         # Add the pthread compiler flags and libraries
  2149         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2150         # Check to see if we have pthread support on this system
  2151         AC_MSG_CHECKING(for pthreads)
  2152         use_pthreads=no
  2153         AC_TRY_LINK([
  2154          #include <pthread.h>
  2155         ],[
  2156          pthread_attr_t type;
  2157          pthread_attr_init(&type);
  2158         ],[
  2159         use_pthreads=yes
  2160         ])
  2161         AC_MSG_RESULT($use_pthreads)
  2162         # Restore the compiler flags and libraries
  2163         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2164 
  2165         # Do futher testing if we have pthread support...
  2166         if test x$use_pthreads = xyes; then
  2167             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2168             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2169             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2170             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2171             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2172 
  2173             # Save the original compiler flags and libraries
  2174             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2175             # Add the pthread compiler flags and libraries
  2176             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2177 
  2178             # Check to see if recursive mutexes are available
  2179             AC_MSG_CHECKING(for recursive mutexes)
  2180             has_recursive_mutexes=no
  2181             if test x$has_recursive_mutexes = xno; then
  2182                 AC_TRY_COMPILE([
  2183                   #include <pthread.h>
  2184                 ],[
  2185                   pthread_mutexattr_t attr;
  2186                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2187                 ],[
  2188                 has_recursive_mutexes=yes
  2189                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2190                 ])
  2191             fi
  2192             if test x$has_recursive_mutexes = xno; then
  2193                 AC_TRY_COMPILE([
  2194                   #include <pthread.h>
  2195                 ],[
  2196                   pthread_mutexattr_t attr;
  2197                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2198                 ],[
  2199                 has_recursive_mutexes=yes
  2200                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2201                 ])
  2202             fi
  2203             AC_MSG_RESULT($has_recursive_mutexes)
  2204 
  2205             # Check to see if pthread semaphore support is missing
  2206             if test x$enable_pthread_sem = xyes; then
  2207                 AC_MSG_CHECKING(for pthread semaphores)
  2208                 have_pthread_sem=no
  2209                 AC_TRY_COMPILE([
  2210                   #include <pthread.h>
  2211                   #include <semaphore.h>
  2212                 ],[
  2213                 ],[
  2214                 have_pthread_sem=yes
  2215                 ])
  2216                 AC_MSG_RESULT($have_pthread_sem)
  2217             fi
  2218             if test x$have_pthread_sem = xyes; then
  2219                 AC_MSG_CHECKING(for sem_timedwait)
  2220                 have_sem_timedwait=no
  2221                 AC_TRY_LINK([
  2222                   #include <pthread.h>
  2223                   #include <semaphore.h>
  2224                 ],[
  2225                   sem_timedwait(NULL, NULL);
  2226                 ],[
  2227                 have_sem_timedwait=yes
  2228                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2229                 ])
  2230                 AC_MSG_RESULT($have_sem_timedwait)
  2231             fi
  2232 
  2233             AC_MSG_CHECKING(for pthread_spin_trylock)
  2234             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2235               has_pthread_spin_trylock=yes
  2236               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2237             ],[
  2238               has_pthread_spin_trylock=no
  2239             ])
  2240             AC_MSG_RESULT($has_pthread_spin_trylock)
  2241 
  2242             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2243             if test x$have_pthread_np_h = xyes; then
  2244                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2245             fi
  2246 
  2247             # Check to see if pthread naming is available
  2248             AC_MSG_CHECKING(for pthread_setname_np)
  2249             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2250               has_pthread_setname_np=yes
  2251               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2252             ],[
  2253               has_pthread_setname_np=no
  2254             ])
  2255             AC_MSG_RESULT($has_pthread_setname_np)
  2256 
  2257             AC_MSG_CHECKING(for pthread_set_name_np)
  2258             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2259               has_pthread_set_name_np=yes
  2260               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2261             ],[
  2262               has_pthread_set_name_np=no
  2263             ])
  2264             AC_MSG_RESULT($has_pthread_set_name_np)
  2265 
  2266             # Restore the compiler flags and libraries
  2267             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2268 
  2269             # Basic thread creation functions
  2270             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2271 
  2272             # Semaphores
  2273             # We can fake these with mutexes and condition variables if necessary
  2274             if test x$have_pthread_sem = xyes; then
  2275                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2276             else
  2277                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2278             fi
  2279 
  2280             # Mutexes
  2281             # We can fake these with semaphores if necessary
  2282             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2283 
  2284             # Condition variables
  2285             # We can fake these with semaphores and mutexes if necessary
  2286             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2287 
  2288             # Thread local storage
  2289             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2290 
  2291             have_threads=yes
  2292         fi
  2293     fi
  2294 }
  2295 
  2296 dnl Determine whether the compiler can produce Windows executables
  2297 CheckWINDOWS()
  2298 {
  2299     AC_MSG_CHECKING(Windows compiler)
  2300     have_win32_gcc=no
  2301     AC_TRY_COMPILE([
  2302      #include <windows.h>
  2303     ],[
  2304     ],[
  2305     have_win32_gcc=yes
  2306     ])
  2307     AC_MSG_RESULT($have_win32_gcc)
  2308     if test x$have_win32_gcc != xyes; then
  2309        AC_MSG_ERROR([
  2310 *** Your compiler ($CC) does not produce Windows executables!
  2311        ])
  2312     fi
  2313 
  2314     AC_MSG_CHECKING(Windows CE)
  2315     have_wince=no
  2316     AC_TRY_COMPILE([
  2317 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2318 #error This is not Windows CE
  2319 #endif
  2320     ],[
  2321     ],[
  2322     have_wince=yes
  2323        AC_MSG_ERROR([
  2324 *** Sorry, Windows CE is no longer supported.
  2325        ])
  2326     ])
  2327     AC_MSG_RESULT($have_wince)
  2328 
  2329     # This fixes Windows stack alignment with newer GCC
  2330     CheckStackBoundary
  2331 }
  2332 
  2333 dnl Find the DirectX includes and libraries
  2334 CheckDIRECTX()
  2335 {
  2336     AC_ARG_ENABLE(directx,
  2337 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2338                   , enable_directx=yes)
  2339     if test x$enable_directx = xyes; then
  2340         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2341         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2342         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2343         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2344         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2345 
  2346         SUMMARY_video="${SUMMARY_video} directx"
  2347         SUMMARY_audio="${SUMMARY_audio} directx"
  2348 
  2349         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2350         # FIXME:  ...so force it off for now.
  2351         case "$host" in
  2352             *-*-cygwin*)
  2353             have_dinput=false
  2354             ;;
  2355         esac
  2356     fi
  2357 }
  2358 
  2359 dnl Check for the dlfcn.h interface for dynamically loading objects
  2360 CheckDLOPEN()
  2361 {
  2362     AC_ARG_ENABLE(sdl-dlopen,
  2363 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2364                   , enable_sdl_dlopen=yes)
  2365     if test x$enable_sdl_dlopen = xyes; then
  2366         AC_MSG_CHECKING(for dlopen)
  2367         have_dlopen=no
  2368         AC_TRY_COMPILE([
  2369          #include <dlfcn.h>
  2370         ],[
  2371          void *handle = dlopen("", RTLD_NOW);
  2372          const char *loaderror = (char *) dlerror();
  2373         ],[
  2374         have_dlopen=yes
  2375         ])
  2376         AC_MSG_RESULT($have_dlopen)
  2377 
  2378         if test x$have_dlopen = xyes; then
  2379             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2380                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2381                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2382             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2383             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2384             have_loadso=yes
  2385         fi
  2386     fi
  2387 }
  2388 
  2389 dnl Check for the usbhid(3) library on *BSD
  2390 CheckUSBHID()
  2391 {
  2392     case "$host" in
  2393         *-*-*bsd*)
  2394             if test x$enable_joystick = xyes; then
  2395                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2396                 if test x$have_libusbhid = xyes; then
  2397                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2398                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2399                     USB_LIBS="$USB_LIBS -lusbhid"
  2400                 else
  2401                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2402                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2403                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2404                 fi
  2405                     
  2406                 save_CFLAGS="$CFLAGS"
  2407                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2408 
  2409                 AC_MSG_CHECKING(for usbhid)
  2410                 have_usbhid=no
  2411                 AC_TRY_COMPILE([
  2412                   #include <sys/types.h>
  2413                   #if defined(HAVE_USB_H)
  2414                   #include <usb.h>
  2415                   #endif
  2416                   #ifdef __DragonFly__
  2417                   # include <bus/usb/usb.h>
  2418                   # include <bus/usb/usbhid.h>
  2419                   #else
  2420                   # include <dev/usb/usb.h>
  2421                   # include <dev/usb/usbhid.h>
  2422                   #endif
  2423                   #if defined(HAVE_USBHID_H)
  2424                   #include <usbhid.h>
  2425                   #elif defined(HAVE_LIBUSB_H)
  2426                   #include <libusb.h>
  2427                   #elif defined(HAVE_LIBUSBHID_H)
  2428                   #include <libusbhid.h>
  2429                   #endif
  2430                 ],[
  2431                   struct report_desc *repdesc;
  2432                   struct usb_ctl_report *repbuf;
  2433                   hid_kind_t hidkind;
  2434                 ],[
  2435                 have_usbhid=yes
  2436                 ])
  2437                 AC_MSG_RESULT($have_usbhid)
  2438 
  2439                 if test x$have_usbhid = xyes; then
  2440                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2441                     have_usbhid_ucr_data=no
  2442                     AC_TRY_COMPILE([
  2443                       #include <sys/types.h>
  2444                       #if defined(HAVE_USB_H)
  2445                       #include <usb.h>
  2446                       #endif
  2447                       #ifdef __DragonFly__
  2448                       # include <bus/usb/usb.h>
  2449                       # include <bus/usb/usbhid.h>
  2450                       #else
  2451                       # include <dev/usb/usb.h>
  2452                       # include <dev/usb/usbhid.h>
  2453                       #endif
  2454                       #if defined(HAVE_USBHID_H)
  2455                       #include <usbhid.h>
  2456                       #elif defined(HAVE_LIBUSB_H)
  2457                       #include <libusb.h>
  2458                       #elif defined(HAVE_LIBUSBHID_H)
  2459                       #include <libusbhid.h>
  2460                       #endif
  2461                     ],[
  2462                       struct usb_ctl_report buf;
  2463                       if (buf.ucr_data) { }
  2464                     ],[
  2465                     have_usbhid_ucr_data=yes
  2466                     ])
  2467                     if test x$have_usbhid_ucr_data = xyes; then
  2468                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2469                     fi
  2470                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2471                     
  2472                     AC_MSG_CHECKING(for new usbhid API)
  2473                     have_usbhid_new=no
  2474                     AC_TRY_COMPILE([
  2475                       #include <sys/types.h>
  2476                       #if defined(HAVE_USB_H)
  2477                       #include <usb.h>
  2478                       #endif
  2479                       #ifdef __DragonFly__
  2480                       #include <bus/usb/usb.h>
  2481                       #include <bus/usb/usbhid.h>
  2482                       #else
  2483                       #include <dev/usb/usb.h>
  2484                       #include <dev/usb/usbhid.h>
  2485                       #endif
  2486                       #if defined(HAVE_USBHID_H)
  2487                       #include <usbhid.h>
  2488                       #elif defined(HAVE_LIBUSB_H)
  2489                       #include <libusb.h>
  2490                       #elif defined(HAVE_LIBUSBHID_H)
  2491                       #include <libusbhid.h>
  2492                       #endif
  2493                     ],[
  2494                       report_desc_t d;
  2495                       hid_start_parse(d, 1, 1);
  2496                     ],[
  2497                     have_usbhid_new=yes
  2498                     ])
  2499                     if test x$have_usbhid_new = xyes; then
  2500                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2501                     fi
  2502                     AC_MSG_RESULT($have_usbhid_new)
  2503 
  2504                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2505                     have_machine_joystick=no
  2506                     AC_TRY_COMPILE([
  2507                       #include <machine/joystick.h>
  2508                     ],[
  2509                       struct joystick t;
  2510                     ],[
  2511                     have_machine_joystick=yes
  2512                     ])
  2513                     if test x$have_machine_joystick = xyes; then
  2514                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2515                     fi
  2516                     AC_MSG_RESULT($have_machine_joystick)
  2517 
  2518                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2519                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2520                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2521                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2522                     have_joystick=yes
  2523                 fi
  2524                 CFLAGS="$save_CFLAGS"
  2525             fi
  2526         ;;
  2527     esac
  2528 }
  2529 
  2530 dnl Check for clock_gettime()
  2531 CheckClockGettime()
  2532 {
  2533     AC_ARG_ENABLE(clock_gettime,
  2534 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2535                   , enable_clock_gettime=yes)
  2536     if test x$enable_clock_gettime = xyes; then
  2537         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2538         if test x$have_clock_gettime = xyes; then
  2539             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2540             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2541         else
  2542             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2543             if test x$have_clock_gettime = xyes; then
  2544                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2545                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2546             fi
  2547         fi
  2548     fi
  2549 }
  2550 
  2551 dnl Check for a valid linux/version.h
  2552 CheckLinuxVersion()
  2553 {
  2554     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2555     if test x$have_linux_version_h = xyes; then
  2556         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2557     fi
  2558 }
  2559 
  2560 dnl Check if we want to use RPATH
  2561 CheckRPATH()
  2562 {
  2563     AC_ARG_ENABLE(rpath,
  2564 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2565                   , enable_rpath=yes)
  2566 }
  2567 
  2568 dnl Set up the configuration based on the host platform!
  2569 case "$host" in
  2570     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2571         case "$host" in
  2572             *-raspberry-linux*)
  2573                 # Raspberry Pi
  2574                 ARCH=linux
  2575                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2576                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2577                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2578                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2579                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2580 
  2581                 if test x$enable_video = xyes; then
  2582                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2583                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2584                 fi
  2585                 ;;
  2586             *-*-linux*)         ARCH=linux ;;
  2587             *-*-uclinux*)       ARCH=linux ;;
  2588             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2589             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2590             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2591             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2592             *-*-bsdi*)          ARCH=bsdi ;;
  2593             *-*-freebsd*)       ARCH=freebsd ;;
  2594             *-*-dragonfly*)     ARCH=freebsd ;;
  2595             *-*-netbsd*)        ARCH=netbsd ;;
  2596             *-*-openbsd*)       ARCH=openbsd ;;
  2597             *-*-sysv5*)         ARCH=sysv5 ;;
  2598             *-*-solaris*)       ARCH=solaris ;;
  2599             *-*-hpux*)          ARCH=hpux ;;
  2600             *-*-aix*)           ARCH=aix ;;
  2601             *-*-minix*)         ARCH=minix ;;
  2602         esac
  2603         CheckVisibilityHidden
  2604         CheckDummyVideo
  2605         CheckDiskAudio
  2606         CheckDummyAudio
  2607         CheckDLOPEN
  2608         CheckOSS
  2609         CheckALSA
  2610         CheckPulseAudio
  2611         CheckARTSC
  2612         CheckESD
  2613         CheckNAS
  2614         CheckSNDIO
  2615         CheckX11
  2616         CheckWayland
  2617         CheckDirectFB
  2618         CheckFusionSound
  2619         CheckOpenGLX11
  2620         CheckOpenGLESX11
  2621         CheckLibUDev
  2622         CheckDBus
  2623         CheckInputEvents
  2624         CheckInputKD
  2625         CheckTslib
  2626         CheckUSBHID
  2627         CheckPTHREAD
  2628         CheckClockGettime
  2629         CheckLinuxVersion
  2630         CheckRPATH
  2631         # Set up files for the audio library
  2632         if test x$enable_audio = xyes; then
  2633           case $ARCH in
  2634             sysv5|solaris|hpux)
  2635                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2636                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2637                 have_audio=yes
  2638             ;;
  2639             netbsd)  # Don't use this on OpenBSD, it's busted.
  2640                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2641                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2642                 have_audio=yes
  2643             ;;
  2644             aix)
  2645                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2646                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2647                 have_audio=yes
  2648             ;;
  2649           esac
  2650         fi
  2651         # Set up files for the joystick library
  2652         if test x$enable_joystick = xyes; then
  2653           case $ARCH in
  2654             linux)
  2655                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2656                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2657                 have_joystick=yes
  2658             ;;
  2659           esac
  2660         fi
  2661         # Set up files for the haptic library
  2662         if test x$enable_haptic = xyes; then
  2663            if test x$use_input_events = xyes; then
  2664              case $ARCH in
  2665                linux)
  2666                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2667                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2668                    have_haptic=yes
  2669                ;;
  2670              esac
  2671            fi
  2672         fi
  2673         # Set up files for the power library
  2674         if test x$enable_power = xyes; then
  2675              case $ARCH in
  2676                linux)
  2677                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2678                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2679                    have_power=yes
  2680                ;;
  2681              esac
  2682         fi
  2683         # Set up files for the filesystem library
  2684         if test x$enable_filesystem = xyes; then
  2685             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2686             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2687             have_filesystem=yes
  2688         fi
  2689         # Set up files for the timer library
  2690         if test x$enable_timers = xyes; then
  2691             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2692             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2693             have_timers=yes
  2694         fi
  2695         # Set up files for udev hotplugging support
  2696         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2697             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2698         fi
  2699         # Set up files for evdev input
  2700         if test x$use_input_events = xyes; then
  2701             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2702         fi       
  2703         ;;
  2704     *-*-cygwin* | *-*-mingw32*)
  2705         ARCH=win32
  2706         if test "$build" != "$host"; then # cross-compiling
  2707             # Default cross-compile location
  2708             ac_default_prefix=/usr/local/cross-tools/$host
  2709         else
  2710             # Look for the location of the tools and install there
  2711             if test "$BUILD_PREFIX" != ""; then
  2712                 ac_default_prefix=$BUILD_PREFIX
  2713             fi
  2714         fi
  2715         CheckDummyVideo
  2716         CheckDiskAudio
  2717         CheckDummyAudio
  2718         CheckWINDOWS
  2719         CheckWINDOWSGL
  2720         CheckWINDOWSGLES
  2721         CheckDIRECTX
  2722 
  2723         # Set up the core platform files
  2724         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2725 
  2726         # Set up files for the video library
  2727         if test x$enable_video = xyes; then
  2728             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2729             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2730             have_video=yes
  2731             AC_ARG_ENABLE(render-d3d,
  2732 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2733                                 , enable_render_d3d=yes)
  2734             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2735                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2736             fi
  2737         fi
  2738         # Set up files for the audio library
  2739         if test x$enable_audio = xyes; then
  2740             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2741             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2742             if test x$have_dsound = xyes; then
  2743                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2744                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2745             fi
  2746             if test x$have_xaudio2 = xyes; then
  2747                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2748                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2749             fi
  2750             have_audio=yes
  2751         fi
  2752         # Set up files for the joystick library
  2753         if test x$enable_joystick = xyes; then
  2754             if test x$have_dinput = xyes; then
  2755                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2756                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2757                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2758             else
  2759                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2760                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2761             fi
  2762             have_joystick=yes
  2763         fi
  2764         if test x$enable_haptic = xyes; then
  2765             if test x$have_dinput = xyes; then
  2766                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2767                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2768                 have_haptic=yes
  2769             fi
  2770         fi
  2771         if test x$enable_power = xyes; then
  2772             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2773             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2774             have_power=yes
  2775         fi
  2776         if test x$enable_filesystem = xyes; then
  2777             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2778             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2779             have_filesystem=yes
  2780         fi
  2781         # Set up files for the thread library
  2782         if test x$enable_threads = xyes; then
  2783             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2784             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2785             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2786             have_threads=yes
  2787         fi
  2788         # Set up files for the timer library
  2789         if test x$enable_timers = xyes; then
  2790             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2791             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2792             have_timers=yes
  2793         fi
  2794         # Set up files for the shared object loading library
  2795         if test x$enable_loadso = xyes; then
  2796             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2797             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2798             have_loadso=yes
  2799         fi
  2800         # Set up the system libraries we need
  2801         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc"
  2802         # The Windows platform requires special setup
  2803         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2804         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2805         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2806         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2807 
  2808         # Check to see if this is a mingw or cygwin build
  2809         have_mingw32=
  2810         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2811         if test x$have_mingw32 = xyes; then
  2812             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2813         else
  2814             SDL_LIBS="-lcygwin $SDL_LIBS"
  2815         fi
  2816         ;;
  2817 
  2818     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2819     *-*-beos*)
  2820         AC_MSG_ERROR([
  2821 *** BeOS support has been removed as of SDL 2.0.2.
  2822         ])
  2823         ;;
  2824 
  2825     *-*-haiku*)
  2826         ARCH=haiku
  2827         ac_default_prefix=/boot/system
  2828         CheckDummyVideo
  2829         CheckDiskAudio
  2830         CheckDummyAudio
  2831         CheckHaikuVideo
  2832         CheckHaikuGL
  2833         CheckPTHREAD
  2834 
  2835         # Set up files for the audio library
  2836         if test x$enable_audio = xyes; then
  2837             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2838             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2839             have_audio=yes
  2840         fi
  2841         # Set up files for the joystick library
  2842         if test x$enable_joystick = xyes; then
  2843             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2844             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2845             have_joystick=yes
  2846         fi
  2847         # Set up files for the timer library
  2848         if test x$enable_timers = xyes; then
  2849             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2850             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2851             have_timers=yes
  2852         fi
  2853         # Set up files for the shared object loading library
  2854         if test x$enable_loadso = xyes; then
  2855             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2856             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2857             have_loadso=yes
  2858         fi
  2859         # Set up files for the system power library
  2860         if test x$enable_power = xyes; then
  2861             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2862             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2863             have_power=yes
  2864         fi
  2865         # Set up files for the system filesystem library
  2866         if test x$enable_filesystem = xyes; then
  2867             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2868             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2869             have_filesystem=yes
  2870         fi
  2871         # The Haiku platform requires special setup.
  2872         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2873         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2874         ;;
  2875     arm*-apple-darwin*)
  2876         # iOS - We are not writing anything to confdefs.h because you have to replace
  2877         # SDL_config.h for SDL_config_iphoneos.h anyway
  2878         ARCH=ios
  2879 
  2880         CheckVisibilityHidden
  2881         CheckDummyVideo
  2882         CheckDiskAudio
  2883         CheckDummyAudio
  2884         CheckDLOPEN
  2885         CheckCOCOA
  2886         CheckPTHREAD
  2887 
  2888 
  2889         # Set up files for the audio library
  2890         if test x$enable_audio = xyes; then
  2891             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2892             have_audio=yes
  2893         fi
  2894         # Set up files for the joystick library
  2895         if test x$enable_joystick = xyes; then
  2896             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2897             have_joystick=yes
  2898         fi
  2899         # Set up files for the haptic library
  2900         #if test x$enable_haptic = xyes; then
  2901         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2902         #    have_haptic=yes
  2903         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2904         #fi
  2905         # Set up files for the power library
  2906         if test x$enable_power = xyes; then
  2907             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2908             have_power=yes
  2909         fi
  2910         # Set up files for the filesystem library
  2911         if test x$enable_filesystem = xyes; then
  2912             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2913             have_filesystem=yes
  2914         fi
  2915         # Set up files for the timer library
  2916         if test x$enable_timers = xyes; then
  2917             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2918             have_timers=yes
  2919         fi
  2920         # Set up additional files for the file library
  2921         if test x$enable_file = xyes; then
  2922             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2923         fi
  2924         # The iOS platform requires special setup.
  2925         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2926         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2927         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2928         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2929         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2930         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2931         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2932         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  2933         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  2934         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  2935         ;;
  2936     *-*-darwin* )
  2937         # This could be either full "Mac OS X", or plain "Darwin" which is
  2938         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  2939         # Next line is broken, and a few files below require Mac OS X (full)
  2940         ARCH=macosx
  2941 
  2942         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  2943         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  2944         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  2945 
  2946         CheckVisibilityHidden
  2947         CheckDummyVideo
  2948         CheckDiskAudio
  2949         CheckDummyAudio
  2950         CheckDLOPEN
  2951         CheckCOCOA
  2952         CheckX11
  2953         CheckMacGL
  2954         CheckOpenGLX11
  2955         CheckPTHREAD
  2956 
  2957         # Need this or things might misbuild on a G3.
  2958         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  2959 
  2960         # Set up files for the audio library
  2961         if test x$enable_audio = xyes; then
  2962             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  2963             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2964             have_audio=yes
  2965         fi
  2966         # Set up files for the joystick library
  2967         if test x$enable_joystick = xyes; then
  2968             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  2969             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  2970             have_joystick=yes
  2971         fi
  2972         # Set up files for the haptic library
  2973         if test x$enable_haptic = xyes; then
  2974             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  2975             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2976             have_haptic=yes
  2977             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2978         fi
  2979         # Set up files for the power library
  2980         if test x$enable_power = xyes; then
  2981             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  2982             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  2983             have_power=yes
  2984         fi
  2985         # Set up files for the filesystem library
  2986         if test x$enable_filesystem = xyes; then
  2987             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  2988             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2989             have_filesystem=yes
  2990         fi
  2991         # Set up files for the timer library
  2992         if test x$enable_timers = xyes; then
  2993             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2994             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2995             have_timers=yes
  2996         fi
  2997         # Set up additional files for the file library
  2998         if test x$enable_file = xyes; then
  2999             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3000         fi
  3001         # The Mac OS X platform requires special setup.
  3002         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3003         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3004         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3005         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3006         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3007         # If audio is used, add the AudioUnit framework
  3008         if test x$enable_audio = xyes; then
  3009             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3010         fi
  3011         ;;
  3012     *)
  3013         AC_MSG_ERROR([
  3014 *** Unsupported host:  Please add to configure.in
  3015         ])
  3016         ;;
  3017 esac
  3018 
  3019 dnl Do this on all platforms, after everything else.
  3020 CheckWarnAll
  3021 
  3022 # Verify that we have all the platform specific files we need
  3023 
  3024 if test x$have_joystick != xyes; then
  3025     if test x$enable_joystick = xyes; then
  3026         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3027     fi
  3028     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3029 fi
  3030 if test x$have_haptic != xyes; then
  3031     if test x$enable_haptic = xyes; then
  3032         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3033     fi
  3034     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3035 fi
  3036 if test x$have_threads != xyes; then
  3037     if test x$enable_threads = xyes; then
  3038         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3039     fi
  3040     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3041 fi
  3042 if test x$have_timers != xyes; then
  3043     if test x$enable_timers = xyes; then
  3044         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3045     fi
  3046     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3047 fi
  3048 if test x$have_filesystem != xyes; then
  3049     if test x$enable_filesystem = xyes; then
  3050         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3051     fi
  3052     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3053 fi
  3054 if test x$have_loadso != xyes; then
  3055     if test x$enable_loadso = xyes; then
  3056         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3057     fi
  3058     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3059 fi
  3060 if test x$SDLMAIN_SOURCES = x; then
  3061     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3062 fi
  3063 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3064 
  3065 OBJECTS=`echo $SOURCES`
  3066 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3067 for EXT in asm cc m c S; do
  3068     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3069     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3070 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3071 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3072 done
  3073 
  3074 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3075 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3076 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3077 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3078 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3079 	\\$(WINDRES) \\$< \\$@,g"`
  3080 
  3081 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3082 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3083 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3084 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3085 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3086 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3087 
  3088 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3089 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3090 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3091 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3092 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3093 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3094 
  3095 # Set runtime shared library paths as needed
  3096 
  3097 if test "x$enable_rpath" = "xyes"; then
  3098   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3099     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3100   fi
  3101   if test $ARCH = solaris; then
  3102     SDL_RLD_FLAGS="-R\${libdir}"
  3103   fi
  3104 else
  3105   SDL_RLD_FLAGS=""
  3106 fi
  3107 
  3108 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3109 
  3110 dnl Expand the cflags and libraries needed by apps using SDL
  3111 AC_SUBST(SDL_CFLAGS)
  3112 AC_SUBST(SDL_LIBS)
  3113 AC_SUBST(SDL_STATIC_LIBS)
  3114 AC_SUBST(SDL_RLD_FLAGS)
  3115 if test x$enable_shared = xyes; then
  3116     ENABLE_SHARED_TRUE=
  3117     ENABLE_SHARED_FALSE="#"
  3118 else
  3119     ENABLE_SHARED_TRUE="#"
  3120     ENABLE_SHARED_FALSE=
  3121 fi
  3122 if test x$enable_static = xyes; then
  3123     ENABLE_STATIC_TRUE=
  3124     ENABLE_STATIC_FALSE="#"
  3125 else
  3126     ENABLE_STATIC_TRUE="#"
  3127     ENABLE_STATIC_FALSE=
  3128 fi
  3129 AC_SUBST(ENABLE_SHARED_TRUE)
  3130 AC_SUBST(ENABLE_SHARED_FALSE)
  3131 AC_SUBST(ENABLE_STATIC_TRUE)
  3132 AC_SUBST(ENABLE_STATIC_FALSE)
  3133 
  3134 dnl Expand the sources and objects needed to build the library
  3135 AC_SUBST(ac_aux_dir)
  3136 AC_SUBST(INCLUDE)
  3137 AC_SUBST(OBJECTS)
  3138 AC_SUBST(VERSION_OBJECTS)
  3139 AC_SUBST(SDLMAIN_OBJECTS)
  3140 AC_SUBST(SDLTEST_OBJECTS)
  3141 AC_SUBST(BUILD_CFLAGS)
  3142 AC_SUBST(EXTRA_CFLAGS)
  3143 AC_SUBST(BUILD_LDFLAGS)
  3144 AC_SUBST(EXTRA_LDFLAGS)
  3145 AC_SUBST(WINDRES)
  3146 
  3147 cat >Makefile.rules <<__EOF__
  3148 
  3149 # Build rules for objects
  3150 -include \$(OBJECTS:.lo=.d)
  3151 
  3152 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3153 $srcdir/src/SDL.c: update-revision
  3154 $DEPENDS
  3155 $VERSION_DEPENDS
  3156 $SDLMAIN_DEPENDS
  3157 $SDLTEST_DEPENDS
  3158 __EOF__
  3159 
  3160 AC_CONFIG_FILES([
  3161     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3162 ])
  3163 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3164 
  3165 SUMMARY="SDL2 Configure Summary:\n"
  3166 if test x$enable_shared = xyes; then
  3167     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3168 fi
  3169 if test x$enable_static = xyes; then
  3170     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3171 fi
  3172 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3173 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3174 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3175 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3176 if test x$have_x = xyes; then
  3177     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3178 fi
  3179 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3180 if test x$enable_libudev = xyes; then
  3181     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3182 else
  3183     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3184 fi
  3185 if test x$have_dbus_dbus_h_hdr = xyes; then
  3186     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3187 else
  3188     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3189 fi
  3190 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3191 
  3192 AC_OUTPUT