configure.in
author Ryan C. Gordon <icculus@icculus.org>
Tue, 28 Jan 2014 00:05:23 -0500
changeset 8133 f24acf2403c0
parent 8124 5226058345bf
child 8146 bfff4df36f0b
permissions -rw-r--r--
CMake: Enable missing timer subsystem on Mac OS X and Haiku.
     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$enable_video_x11_xrandr = xyes; then
  1511                 definitely_enable_video_x11_xrandr=no
  1512                 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
  1513                                 have_xrandr_h_hdr=yes,
  1514                                 have_xrandr_h_hdr=no,
  1515                                 [#include <X11/Xlib.h>
  1516                                 ])
  1517                 if test x$have_xrandr_h_hdr = xyes; then
  1518                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1519                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1520                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1521                         definitely_enable_video_x11_xrandr=yes
  1522                     else
  1523                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1524                         if test x$have_xrandr_lib = xyes ; then
  1525                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1526                             definitely_enable_video_x11_xrandr=yes
  1527                         fi
  1528                     fi
  1529                 fi
  1530             fi
  1531             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1532                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1533                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1534             fi
  1535             AC_ARG_ENABLE(video-x11-scrnsaver,
  1536 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1537                             , enable_video_x11_scrnsaver=yes)
  1538             if test x$enable_video_x11_scrnsaver = xyes; then
  1539                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1540                                 have_scrnsaver_h_hdr=yes,
  1541                                 have_scrnsaver_h_hdr=no,
  1542                                 [#include <X11/Xlib.h>
  1543                                 ])
  1544                 if test x$have_scrnsaver_h_hdr = xyes; then
  1545                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1546                         echo "-- dynamic libXss -> $xss_lib"
  1547                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1548                         definitely_enable_video_x11_scrnsaver=yes
  1549                     else
  1550                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1551                         if test x$have_xss_lib = xyes ; then
  1552                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1553                             definitely_enable_video_x11_scrnsaver=yes
  1554                         fi
  1555                     fi
  1556                 fi
  1557             fi
  1558             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1559                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1560                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1561             fi
  1562             AC_ARG_ENABLE(video-x11-xshape,
  1563 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1564                             , enable_video_x11_xshape=yes)
  1565             if test x$enable_video_x11_xshape = xyes; then
  1566                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1567                                 have_shape_h_hdr=yes,
  1568                                 have_shape_h_hdr=no,
  1569                                 [#include <X11/Xlib.h>
  1570                                 ])
  1571                 if test x$have_shape_h_hdr = xyes; then
  1572                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1573                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1574                 fi
  1575             fi
  1576             AC_ARG_ENABLE(video-x11-vm,
  1577 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1578                             , enable_video_x11_vm=yes)
  1579             if test x$enable_video_x11_vm = xyes; then
  1580                 definitely_enable_video_x11_vm=no
  1581                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1582                                 have_vm_h_hdr=yes,
  1583                                 have_vm_h_hdr=no,
  1584                                 [#include <X11/Xlib.h>
  1585                                 ])
  1586                 if test x$have_vm_h_hdr = xyes; then
  1587                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1588                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1589                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1590                         definitely_enable_video_x11_vm=yes
  1591                     else
  1592                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1593                         if test x$have_vm_lib = xyes ; then
  1594                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1595                             definitely_enable_video_x11_vm=yes
  1596                         fi
  1597                     fi
  1598                 fi
  1599             fi
  1600             if test x$definitely_enable_video_x11_vm = xyes; then
  1601                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1602                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1603             fi
  1604         fi
  1605     fi
  1606 }
  1607 
  1608 dnl Set up the Haiku video driver if enabled
  1609 CheckHaikuVideo()
  1610 {
  1611     if test x$enable_video = xyes; then
  1612         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1613         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1614         have_video=yes
  1615         SUMMARY_video="${SUMMARY_video} haiku"
  1616     fi
  1617 }
  1618 
  1619 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1620 CheckCOCOA()
  1621 {
  1622     AC_ARG_ENABLE(video-cocoa,
  1623 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1624                   , enable_video_cocoa=yes)
  1625     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1626         save_CFLAGS="$CFLAGS"
  1627         dnl work around that we don't have Objective-C support in autoconf
  1628         CFLAGS="$CFLAGS -x objective-c"
  1629         AC_MSG_CHECKING(for Cocoa framework)
  1630         have_cocoa=no
  1631         AC_TRY_COMPILE([
  1632           #import <Cocoa/Cocoa.h>
  1633         ],[
  1634         ],[
  1635         have_cocoa=yes
  1636         ])
  1637         AC_MSG_RESULT($have_cocoa)
  1638         CFLAGS="$save_CFLAGS"
  1639         if test x$have_cocoa = xyes; then
  1640             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1641             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1642             SUMMARY_video="${SUMMARY_video} cocoa"
  1643             have_video=yes
  1644         fi
  1645     fi
  1646 }
  1647 
  1648 dnl Find DirectFB
  1649 CheckDirectFB()
  1650 {
  1651     AC_ARG_ENABLE(video-directfb,
  1652 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1653                   , enable_video_directfb=no)
  1654     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1655         video_directfb=no
  1656 
  1657         DIRECTFB_REQUIRED_VERSION=1.0.0
  1658         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1659         if test x$DIRECTFBCONFIG = xno; then
  1660             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1661             if test x$PKG_CONFIG != xno; then
  1662                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1663                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1664                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1665                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1666                     video_directfb=yes
  1667                 fi
  1668             fi
  1669         else
  1670             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1671             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1672             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1673             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1674             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1675                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1676                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1677                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1678                 video_directfb=yes
  1679             fi
  1680         fi
  1681         if test x$video_directfb = xyes; then
  1682             # SuSE 11.1 installs directfb-config without directfb-devel
  1683             save_CPPFLAGS="$CPPFLAGS"
  1684             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1685             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1686             CPPFLAGS="$save_CPPFLAGS"
  1687             video_directfb=$have_directfb_hdr
  1688         fi
  1689         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1690         AC_MSG_RESULT($video_directfb)
  1691 
  1692         if test x$video_directfb = xyes; then
  1693             AC_ARG_ENABLE(directfb-shared,
  1694 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1695                               , enable_directfb_shared=yes)
  1696 
  1697             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1698             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1699             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1700             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1701 
  1702             AC_MSG_CHECKING(for directfb dynamic loading support)
  1703             directfb_shared=no
  1704             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1705             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1706 AC_MSG_WARN("directfb $directfb_lib")
  1707             if test x$have_loadso != xyes && \
  1708                test x$enable_directfb_shared = xyes; then
  1709                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1710             fi
  1711             if test x$have_loadso = xyes && \
  1712                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1713                 directfb_shared=yes
  1714                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1715                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1716                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1717             else
  1718                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1719                 SUMMARY_video="${SUMMARY_video} directfb"
  1720             fi
  1721             AC_MSG_RESULT($directfb_shared)
  1722             have_video=yes
  1723         fi
  1724     fi
  1725 }
  1726 
  1727 dnl Find FusionSound
  1728 CheckFusionSound()
  1729 {
  1730     AC_ARG_ENABLE(fusionsound,
  1731 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1732                   , enable_fusionsound=no)
  1733     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1734         fusionsound=no
  1735 
  1736         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1737 
  1738         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1739         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1740         if test x$PKG_CONFIG != xno; then
  1741             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1742                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1743                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1744                 fusionsound=yes
  1745             fi
  1746         fi
  1747         AC_MSG_RESULT($fusionsound)
  1748 
  1749         if test x$fusionsound = xyes; then
  1750             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1751             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1752             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1753             
  1754             AC_ARG_ENABLE(fusionsound-shared,
  1755 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1756                           , enable_fusionsound_shared=yes)
  1757             fusionsound_shared=no
  1758             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1759             if test x$have_loadso != xyes && \
  1760                test x$enable_fusionsound_shared = xyes; then
  1761                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1762             fi
  1763             if test x$have_loadso = xyes && \
  1764                test x$enable_fusionsound_shared = xyes; then
  1765                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1766                 fusionsound_shared=yes
  1767                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1768             else
  1769                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1770                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1771             fi
  1772             AC_MSG_RESULT($fusionsound_shared)
  1773             
  1774             have_audio=yes
  1775         fi
  1776     fi
  1777 }
  1778 
  1779 dnl rcg04172001 Set up the Null video driver.
  1780 CheckDummyVideo()
  1781 {
  1782     AC_ARG_ENABLE(video-dummy,
  1783 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1784                   , enable_video_dummy=yes)
  1785     if test x$enable_video_dummy = xyes; then
  1786         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1787         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1788         have_video=yes
  1789         SUMMARY_video="${SUMMARY_video} dummy"
  1790     fi
  1791 }
  1792 
  1793 dnl Check to see if OpenGL support is desired
  1794 AC_ARG_ENABLE(video-opengl,
  1795 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1796               , enable_video_opengl=yes)
  1797 
  1798 dnl Find OpenGL
  1799 CheckOpenGLX11()
  1800 {
  1801     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1802         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1803         video_opengl=no
  1804         AC_TRY_COMPILE([
  1805          #include <GL/gl.h>
  1806          #include <GL/glx.h>
  1807         ],[
  1808         ],[
  1809         video_opengl=yes
  1810         ])
  1811         AC_MSG_RESULT($video_opengl)
  1812         if test x$video_opengl = xyes; then
  1813             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1814             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1815             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1816             SUMMARY_video="${SUMMARY_video} opengl"
  1817         fi
  1818     fi
  1819 }
  1820 
  1821 dnl Check to see if OpenGL ES support is desired
  1822 AC_ARG_ENABLE(video-opengles,
  1823 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1824               , enable_video_opengles=yes)
  1825 
  1826 dnl Find OpenGL ES
  1827 CheckOpenGLESX11()
  1828 {
  1829     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1830         AC_MSG_CHECKING(for EGL support)
  1831         video_opengl_egl=no
  1832         AC_TRY_COMPILE([
  1833          #include <EGL/egl.h>
  1834         ],[
  1835         ],[
  1836         video_opengl_egl=yes
  1837         ])
  1838         AC_MSG_RESULT($video_opengl_egl)
  1839         if test x$video_opengl_egl = xyes; then
  1840             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1841         fi
  1842             
  1843         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1844         video_opengles_v1=no
  1845         AC_TRY_COMPILE([
  1846          #include <GLES/gl.h>
  1847          #include <GLES/glext.h>
  1848         ],[
  1849         ],[
  1850         video_opengles_v1=yes
  1851         ])
  1852         AC_MSG_RESULT($video_opengles_v1)
  1853         if test x$video_opengles_v1 = xyes; then
  1854             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1855             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1856             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1857         fi
  1858         
  1859         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1860         video_opengles_v2=no
  1861         AC_TRY_COMPILE([
  1862          #include <GLES2/gl2.h>
  1863          #include <GLES2/gl2ext.h>
  1864         ],[
  1865         ],[
  1866         video_opengles_v2=yes
  1867         ])
  1868         AC_MSG_RESULT($video_opengles_v2)
  1869         if test x$video_opengles_v2 = xyes; then
  1870             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1871             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1872             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1873         fi
  1874     fi
  1875 }
  1876 
  1877 dnl Check for Windows OpenGL
  1878 CheckWINDOWSGL()
  1879 {
  1880     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1881         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1882         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1883         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1884         SUMMARY_video="${SUMMARY_video} opengl"
  1885     fi
  1886 }
  1887 
  1888 dnl Check for Windows OpenGL
  1889 CheckWINDOWSGLES()
  1890 {
  1891     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1892 
  1893         AC_MSG_CHECKING(for EGL support)
  1894         video_opengl_egl=no
  1895         AC_TRY_COMPILE([
  1896          #include <EGL/egl.h>
  1897         ],[
  1898         ],[
  1899         video_opengl_egl=yes
  1900         ])
  1901         AC_MSG_RESULT($video_opengl_egl)
  1902         if test x$video_opengl_egl = xyes; then
  1903             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1904             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1905             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1906         fi
  1907        
  1908         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1909         video_opengles_v2=no
  1910         AC_TRY_COMPILE([
  1911          #include <GLES2/gl2.h>
  1912          #include <GLES2/gl2ext.h>
  1913         ],[
  1914         ],[
  1915         video_opengles_v2=yes
  1916         ])
  1917         AC_MSG_RESULT($video_opengles_v2)
  1918         if test x$video_opengles_v2 = xyes; then
  1919             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1920             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1921             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1922             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1923         fi
  1924     fi
  1925 }
  1926 
  1927 dnl Check for Haiku OpenGL
  1928 CheckHaikuGL()
  1929 {
  1930     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1931         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1932         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  1933         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1934         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1935         SUMMARY_video="${SUMMARY_video} opengl"
  1936     fi
  1937 }
  1938 
  1939 dnl Check for MacOS OpenGL
  1940 CheckMacGL()
  1941 {
  1942     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1943         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1944         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  1945         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1946         SUMMARY_video="${SUMMARY_video} opengl"
  1947         case "$host" in
  1948             *-*-darwin*)
  1949                 if test x$enable_video_cocoa = xyes; then
  1950                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  1951                 fi
  1952         esac
  1953     fi
  1954 }
  1955 
  1956 dnl See if we can use the new unified event interface in Linux 2.4
  1957 CheckInputEvents()
  1958 {
  1959     dnl Check for Linux 2.4 unified input event interface support
  1960         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  1961         use_input_events=no
  1962         AC_TRY_COMPILE([
  1963           #include <linux/input.h>
  1964         ],[
  1965           #ifndef EVIOCGNAME
  1966           #error EVIOCGNAME() ioctl not available
  1967           #endif
  1968         ],[
  1969         use_input_events=yes
  1970         ])
  1971         AC_MSG_RESULT($use_input_events)
  1972         if test x$use_input_events = xyes; then
  1973             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  1974             SUMMARY_input="${SUMMARY_input} linuxev"
  1975         fi
  1976 }
  1977 
  1978 dnl See if we can use the kernel kd.h header
  1979 CheckInputKD()
  1980 {
  1981 
  1982     AC_MSG_CHECKING(for Linux kd.h)
  1983     use_input_kd=no
  1984     AC_TRY_COMPILE([
  1985       #include <linux/kd.h>
  1986       #include <linux/keyboard.h>
  1987     ],[
  1988         struct kbentry kbe;
  1989         kbe.kb_table = KG_CTRL;
  1990         ioctl(0, KDGKBENT, &kbe);
  1991     ],[
  1992     use_input_kd=yes
  1993     ])
  1994     AC_MSG_RESULT($use_input_kd)
  1995     if test x$use_input_kd = xyes; then
  1996         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  1997         SUMMARY_input="${SUMMARY_input} linuxkd"
  1998     fi
  1999 }
  2000 
  2001 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2002 CheckLibUDev()
  2003 {
  2004     AC_ARG_ENABLE(libudev,
  2005 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2006                         , enable_libudev=yes)
  2007     if test x$enable_libudev = xyes; then
  2008         AC_CHECK_HEADER(libudev.h,
  2009                         have_libudev_h_hdr=yes,
  2010                         have_libudev_h_hdr=no)
  2011         if test x$have_libudev_h_hdr = xyes; then
  2012             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2013         fi
  2014     fi
  2015 }
  2016 
  2017 dnl See if the platform offers libdbus for various IPC techniques.
  2018 CheckDBus()
  2019 {
  2020     AC_ARG_ENABLE(dbus,
  2021 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2022                         , enable_dbus=yes)
  2023     if test x$enable_dbus = xyes; then
  2024         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2025         if test x$PKG_CONFIG != xno; then
  2026             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2027             save_CFLAGS="$CFLAGS"
  2028             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2029             AC_CHECK_HEADER(dbus/dbus.h,
  2030                             have_dbus_dbus_h_hdr=yes,
  2031                             have_dbus_dbus_h_hdr=no)
  2032             CFLAGS="$save_CFLAGS"
  2033             if test x$have_dbus_dbus_h_hdr = xyes; then
  2034                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2035                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2036             fi
  2037         fi
  2038     fi
  2039 }
  2040 
  2041 dnl See if we can use the Touchscreen input library
  2042 CheckTslib()
  2043 {
  2044     AC_ARG_ENABLE(input-tslib,
  2045 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2046                   , enable_input_tslib=yes)
  2047     if test x$enable_input_tslib = xyes; then
  2048         AC_MSG_CHECKING(for Touchscreen library support)
  2049         enable_input_tslib=no
  2050         AC_TRY_COMPILE([
  2051           #include "tslib.h"
  2052         ],[
  2053         ],[
  2054         enable_input_tslib=yes
  2055         ])
  2056         AC_MSG_RESULT($enable_input_tslib)
  2057         if test x$enable_input_tslib = xyes; then
  2058             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2059             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2060             SUMMARY_input="${SUMMARY_input} ts"
  2061         fi
  2062     fi
  2063 }
  2064 
  2065 dnl See what type of thread model to use on Linux and Solaris
  2066 CheckPTHREAD()
  2067 {
  2068     dnl Check for pthread support
  2069     AC_ARG_ENABLE(pthreads,
  2070 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2071                   , enable_pthreads=yes)
  2072     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2073     AC_ARG_ENABLE(pthread-sem,
  2074 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2075                   , enable_pthread_sem=yes)
  2076     case "$host" in
  2077         *-*-linux*|*-*-uclinux*)
  2078             pthread_cflags="-D_REENTRANT"
  2079             pthread_lib="-lpthread"
  2080             ;;
  2081         *-*-bsdi*)
  2082             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2083             pthread_lib=""
  2084             ;;
  2085         *-*-darwin*)
  2086             pthread_cflags="-D_THREAD_SAFE"
  2087 # causes Carbon.p complaints?
  2088 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2089             ;;
  2090         *-*-freebsd*|*-*-dragonfly*)
  2091             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2092             pthread_lib="-pthread"
  2093             ;;
  2094         *-*-netbsd*)
  2095             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2096             pthread_lib="-lpthread"
  2097             ;;
  2098         *-*-openbsd*)
  2099             pthread_cflags="-D_REENTRANT"
  2100             pthread_lib="-pthread"
  2101             ;;
  2102         *-*-solaris2.9)
  2103             # From Solaris 9+, posix4's preferred name is rt.
  2104             pthread_cflags="-D_REENTRANT"
  2105             pthread_lib="-lpthread -lrt"
  2106             ;;
  2107         *-*-solaris2.10)
  2108             # Solaris 10+ merged pthread into libc.
  2109             pthread_cflags="-D_REENTRANT"
  2110             pthread_lib="-lrt"
  2111             ;;
  2112         *-*-solaris*)
  2113             # Solaris 11+ merged rt into libc.
  2114             pthread_cflags="-D_REENTRANT"
  2115             pthread_lib=""
  2116             ;;
  2117         *-*-sysv5*)
  2118             pthread_cflags="-D_REENTRANT -Kthread"
  2119             pthread_lib=""
  2120             ;;
  2121         *-*-aix*)
  2122             pthread_cflags="-D_REENTRANT -mthreads"
  2123             pthread_lib="-lpthread"
  2124             ;;
  2125         *-*-hpux11*)
  2126             pthread_cflags="-D_REENTRANT"
  2127             pthread_lib="-L/usr/lib -lpthread"
  2128             ;;
  2129         *-*-haiku*)
  2130             pthread_cflags="-D_REENTRANT"
  2131             pthread_lib=""
  2132             ;;
  2133         *)
  2134             pthread_cflags="-D_REENTRANT"
  2135             pthread_lib="-lpthread"
  2136             ;;
  2137     esac
  2138     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2139         # Save the original compiler flags and libraries
  2140         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2141         # Add the pthread compiler flags and libraries
  2142         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2143         # Check to see if we have pthread support on this system
  2144         AC_MSG_CHECKING(for pthreads)
  2145         use_pthreads=no
  2146         AC_TRY_LINK([
  2147          #include <pthread.h>
  2148         ],[
  2149          pthread_attr_t type;
  2150          pthread_attr_init(&type);
  2151         ],[
  2152         use_pthreads=yes
  2153         ])
  2154         AC_MSG_RESULT($use_pthreads)
  2155         # Restore the compiler flags and libraries
  2156         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2157 
  2158         # Do futher testing if we have pthread support...
  2159         if test x$use_pthreads = xyes; then
  2160             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2161             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2162             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2163             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2164             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2165 
  2166             # Save the original compiler flags and libraries
  2167             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2168             # Add the pthread compiler flags and libraries
  2169             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2170 
  2171             # Check to see if recursive mutexes are available
  2172             AC_MSG_CHECKING(for recursive mutexes)
  2173             has_recursive_mutexes=no
  2174             if test x$has_recursive_mutexes = xno; then
  2175                 AC_TRY_COMPILE([
  2176                   #include <pthread.h>
  2177                 ],[
  2178                   pthread_mutexattr_t attr;
  2179                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2180                 ],[
  2181                 has_recursive_mutexes=yes
  2182                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2183                 ])
  2184             fi
  2185             if test x$has_recursive_mutexes = xno; then
  2186                 AC_TRY_COMPILE([
  2187                   #include <pthread.h>
  2188                 ],[
  2189                   pthread_mutexattr_t attr;
  2190                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2191                 ],[
  2192                 has_recursive_mutexes=yes
  2193                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2194                 ])
  2195             fi
  2196             AC_MSG_RESULT($has_recursive_mutexes)
  2197 
  2198             # Check to see if pthread semaphore support is missing
  2199             if test x$enable_pthread_sem = xyes; then
  2200                 AC_MSG_CHECKING(for pthread semaphores)
  2201                 have_pthread_sem=no
  2202                 AC_TRY_COMPILE([
  2203                   #include <pthread.h>
  2204                   #include <semaphore.h>
  2205                 ],[
  2206                 ],[
  2207                 have_pthread_sem=yes
  2208                 ])
  2209                 AC_MSG_RESULT($have_pthread_sem)
  2210             fi
  2211             if test x$have_pthread_sem = xyes; then
  2212                 AC_MSG_CHECKING(for sem_timedwait)
  2213                 have_sem_timedwait=no
  2214                 AC_TRY_LINK([
  2215                   #include <pthread.h>
  2216                   #include <semaphore.h>
  2217                 ],[
  2218                   sem_timedwait(NULL, NULL);
  2219                 ],[
  2220                 have_sem_timedwait=yes
  2221                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2222                 ])
  2223                 AC_MSG_RESULT($have_sem_timedwait)
  2224             fi
  2225 
  2226             AC_MSG_CHECKING(for pthread_spin_trylock)
  2227             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2228               has_pthread_spin_trylock=yes
  2229               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2230             ],[
  2231               has_pthread_spin_trylock=no
  2232             ])
  2233             AC_MSG_RESULT($has_pthread_spin_trylock)
  2234 
  2235             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2236             if test x$have_pthread_np_h = xyes; then
  2237                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2238             fi
  2239 
  2240             # Check to see if pthread naming is available
  2241             AC_MSG_CHECKING(for pthread_setname_np)
  2242             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2243               has_pthread_setname_np=yes
  2244               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2245             ],[
  2246               has_pthread_setname_np=no
  2247             ])
  2248             AC_MSG_RESULT($has_pthread_setname_np)
  2249 
  2250             AC_MSG_CHECKING(for pthread_set_name_np)
  2251             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2252               has_pthread_set_name_np=yes
  2253               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2254             ],[
  2255               has_pthread_set_name_np=no
  2256             ])
  2257             AC_MSG_RESULT($has_pthread_set_name_np)
  2258 
  2259             # Restore the compiler flags and libraries
  2260             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2261 
  2262             # Basic thread creation functions
  2263             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2264 
  2265             # Semaphores
  2266             # We can fake these with mutexes and condition variables if necessary
  2267             if test x$have_pthread_sem = xyes; then
  2268                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2269             else
  2270                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2271             fi
  2272 
  2273             # Mutexes
  2274             # We can fake these with semaphores if necessary
  2275             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2276 
  2277             # Condition variables
  2278             # We can fake these with semaphores and mutexes if necessary
  2279             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2280 
  2281             # Thread local storage
  2282             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2283 
  2284             have_threads=yes
  2285         fi
  2286     fi
  2287 }
  2288 
  2289 dnl Determine whether the compiler can produce Windows executables
  2290 CheckWINDOWS()
  2291 {
  2292     AC_MSG_CHECKING(Windows compiler)
  2293     have_win32_gcc=no
  2294     AC_TRY_COMPILE([
  2295      #include <windows.h>
  2296     ],[
  2297     ],[
  2298     have_win32_gcc=yes
  2299     ])
  2300     AC_MSG_RESULT($have_win32_gcc)
  2301     if test x$have_win32_gcc != xyes; then
  2302        AC_MSG_ERROR([
  2303 *** Your compiler ($CC) does not produce Windows executables!
  2304        ])
  2305     fi
  2306 
  2307     AC_MSG_CHECKING(Windows CE)
  2308     have_wince=no
  2309     AC_TRY_COMPILE([
  2310 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2311 #error This is not Windows CE
  2312 #endif
  2313     ],[
  2314     ],[
  2315     have_wince=yes
  2316        AC_MSG_ERROR([
  2317 *** Sorry, Windows CE is no longer supported.
  2318        ])
  2319     ])
  2320     AC_MSG_RESULT($have_wince)
  2321 
  2322     # This fixes Windows stack alignment with newer GCC
  2323     CheckStackBoundary
  2324 }
  2325 
  2326 dnl Find the DirectX includes and libraries
  2327 CheckDIRECTX()
  2328 {
  2329     AC_ARG_ENABLE(directx,
  2330 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2331                   , enable_directx=yes)
  2332     if test x$enable_directx = xyes; then
  2333         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2334         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2335         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2336         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2337         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2338 
  2339         SUMMARY_video="${SUMMARY_video} directx"
  2340         SUMMARY_audio="${SUMMARY_audio} directx"
  2341 
  2342         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2343         # FIXME:  ...so force it off for now.
  2344         case "$host" in
  2345             *-*-cygwin*)
  2346             have_dinput=false
  2347             ;;
  2348         esac
  2349     fi
  2350 }
  2351 
  2352 dnl Check for the dlfcn.h interface for dynamically loading objects
  2353 CheckDLOPEN()
  2354 {
  2355     AC_ARG_ENABLE(sdl-dlopen,
  2356 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2357                   , enable_sdl_dlopen=yes)
  2358     if test x$enable_sdl_dlopen = xyes; then
  2359         AC_MSG_CHECKING(for dlopen)
  2360         have_dlopen=no
  2361         AC_TRY_COMPILE([
  2362          #include <dlfcn.h>
  2363         ],[
  2364          void *handle = dlopen("", RTLD_NOW);
  2365          const char *loaderror = (char *) dlerror();
  2366         ],[
  2367         have_dlopen=yes
  2368         ])
  2369         AC_MSG_RESULT($have_dlopen)
  2370 
  2371         if test x$have_dlopen = xyes; then
  2372             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2373                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2374                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2375             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2376             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2377             have_loadso=yes
  2378         fi
  2379     fi
  2380 }
  2381 
  2382 dnl Check for the usbhid(3) library on *BSD
  2383 CheckUSBHID()
  2384 {
  2385     case "$host" in
  2386         *-*-*bsd*)
  2387             if test x$enable_joystick = xyes; then
  2388                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2389                 if test x$have_libusbhid = xyes; then
  2390                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2391                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2392                     USB_LIBS="$USB_LIBS -lusbhid"
  2393                 else
  2394                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2395                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2396                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2397                 fi
  2398                     
  2399                 save_CFLAGS="$CFLAGS"
  2400                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2401 
  2402                 AC_MSG_CHECKING(for usbhid)
  2403                 have_usbhid=no
  2404                 AC_TRY_COMPILE([
  2405                   #include <sys/types.h>
  2406                   #if defined(HAVE_USB_H)
  2407                   #include <usb.h>
  2408                   #endif
  2409                   #ifdef __DragonFly__
  2410                   # include <bus/usb/usb.h>
  2411                   # include <bus/usb/usbhid.h>
  2412                   #else
  2413                   # include <dev/usb/usb.h>
  2414                   # include <dev/usb/usbhid.h>
  2415                   #endif
  2416                   #if defined(HAVE_USBHID_H)
  2417                   #include <usbhid.h>
  2418                   #elif defined(HAVE_LIBUSB_H)
  2419                   #include <libusb.h>
  2420                   #elif defined(HAVE_LIBUSBHID_H)
  2421                   #include <libusbhid.h>
  2422                   #endif
  2423                 ],[
  2424                   struct report_desc *repdesc;
  2425                   struct usb_ctl_report *repbuf;
  2426                   hid_kind_t hidkind;
  2427                 ],[
  2428                 have_usbhid=yes
  2429                 ])
  2430                 AC_MSG_RESULT($have_usbhid)
  2431 
  2432                 if test x$have_usbhid = xyes; then
  2433                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2434                     have_usbhid_ucr_data=no
  2435                     AC_TRY_COMPILE([
  2436                       #include <sys/types.h>
  2437                       #if defined(HAVE_USB_H)
  2438                       #include <usb.h>
  2439                       #endif
  2440                       #ifdef __DragonFly__
  2441                       # include <bus/usb/usb.h>
  2442                       # include <bus/usb/usbhid.h>
  2443                       #else
  2444                       # include <dev/usb/usb.h>
  2445                       # include <dev/usb/usbhid.h>
  2446                       #endif
  2447                       #if defined(HAVE_USBHID_H)
  2448                       #include <usbhid.h>
  2449                       #elif defined(HAVE_LIBUSB_H)
  2450                       #include <libusb.h>
  2451                       #elif defined(HAVE_LIBUSBHID_H)
  2452                       #include <libusbhid.h>
  2453                       #endif
  2454                     ],[
  2455                       struct usb_ctl_report buf;
  2456                       if (buf.ucr_data) { }
  2457                     ],[
  2458                     have_usbhid_ucr_data=yes
  2459                     ])
  2460                     if test x$have_usbhid_ucr_data = xyes; then
  2461                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2462                     fi
  2463                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2464                     
  2465                     AC_MSG_CHECKING(for new usbhid API)
  2466                     have_usbhid_new=no
  2467                     AC_TRY_COMPILE([
  2468                       #include <sys/types.h>
  2469                       #if defined(HAVE_USB_H)
  2470                       #include <usb.h>
  2471                       #endif
  2472                       #ifdef __DragonFly__
  2473                       #include <bus/usb/usb.h>
  2474                       #include <bus/usb/usbhid.h>
  2475                       #else
  2476                       #include <dev/usb/usb.h>
  2477                       #include <dev/usb/usbhid.h>
  2478                       #endif
  2479                       #if defined(HAVE_USBHID_H)
  2480                       #include <usbhid.h>
  2481                       #elif defined(HAVE_LIBUSB_H)
  2482                       #include <libusb.h>
  2483                       #elif defined(HAVE_LIBUSBHID_H)
  2484                       #include <libusbhid.h>
  2485                       #endif
  2486                     ],[
  2487                       report_desc_t d;
  2488                       hid_start_parse(d, 1, 1);
  2489                     ],[
  2490                     have_usbhid_new=yes
  2491                     ])
  2492                     if test x$have_usbhid_new = xyes; then
  2493                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2494                     fi
  2495                     AC_MSG_RESULT($have_usbhid_new)
  2496 
  2497                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2498                     have_machine_joystick=no
  2499                     AC_TRY_COMPILE([
  2500                       #include <machine/joystick.h>
  2501                     ],[
  2502                       struct joystick t;
  2503                     ],[
  2504                     have_machine_joystick=yes
  2505                     ])
  2506                     if test x$have_machine_joystick = xyes; then
  2507                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2508                     fi
  2509                     AC_MSG_RESULT($have_machine_joystick)
  2510 
  2511                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2512                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2513                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2514                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2515                     have_joystick=yes
  2516                 fi
  2517                 CFLAGS="$save_CFLAGS"
  2518             fi
  2519         ;;
  2520     esac
  2521 }
  2522 
  2523 dnl Check for clock_gettime()
  2524 CheckClockGettime()
  2525 {
  2526     AC_ARG_ENABLE(clock_gettime,
  2527 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2528                   , enable_clock_gettime=yes)
  2529     if test x$enable_clock_gettime = xyes; then
  2530         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2531         if test x$have_clock_gettime = xyes; then
  2532             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2533             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2534         else
  2535             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2536             if test x$have_clock_gettime = xyes; then
  2537                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2538                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2539             fi
  2540         fi
  2541     fi
  2542 }
  2543 
  2544 dnl Check for a valid linux/version.h
  2545 CheckLinuxVersion()
  2546 {
  2547     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2548     if test x$have_linux_version_h = xyes; then
  2549         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2550     fi
  2551 }
  2552 
  2553 dnl Check if we want to use RPATH
  2554 CheckRPATH()
  2555 {
  2556     AC_ARG_ENABLE(rpath,
  2557 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2558                   , enable_rpath=yes)
  2559 }
  2560 
  2561 dnl Set up the configuration based on the host platform!
  2562 case "$host" in
  2563     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2564         case "$host" in
  2565             *-raspberry-linux*)
  2566                 # Raspberry Pi
  2567                 ARCH=linux
  2568                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2569                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2570                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2571                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2572                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2573 
  2574                 if test x$enable_video = xyes; then
  2575                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2576                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2577                 fi
  2578                 ;;
  2579             *-*-linux*)         ARCH=linux ;;
  2580             *-*-uclinux*)       ARCH=linux ;;
  2581             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2582             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2583             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2584             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2585             *-*-bsdi*)          ARCH=bsdi ;;
  2586             *-*-freebsd*)       ARCH=freebsd ;;
  2587             *-*-dragonfly*)     ARCH=freebsd ;;
  2588             *-*-netbsd*)        ARCH=netbsd ;;
  2589             *-*-openbsd*)       ARCH=openbsd ;;
  2590             *-*-sysv5*)         ARCH=sysv5 ;;
  2591             *-*-solaris*)       ARCH=solaris ;;
  2592             *-*-hpux*)          ARCH=hpux ;;
  2593             *-*-aix*)           ARCH=aix ;;
  2594             *-*-minix*)         ARCH=minix ;;
  2595         esac
  2596         CheckVisibilityHidden
  2597         CheckDummyVideo
  2598         CheckDiskAudio
  2599         CheckDummyAudio
  2600         CheckDLOPEN
  2601         CheckOSS
  2602         CheckALSA
  2603         CheckPulseAudio
  2604         CheckARTSC
  2605         CheckESD
  2606         CheckNAS
  2607         CheckSNDIO
  2608         CheckX11
  2609         CheckWayland
  2610         CheckDirectFB
  2611         CheckFusionSound
  2612         CheckOpenGLX11
  2613         CheckOpenGLESX11
  2614         CheckLibUDev
  2615         CheckDBus
  2616         CheckInputEvents
  2617         CheckInputKD
  2618         CheckTslib
  2619         CheckUSBHID
  2620         CheckPTHREAD
  2621         CheckClockGettime
  2622         CheckLinuxVersion
  2623         CheckRPATH
  2624         # Set up files for the audio library
  2625         if test x$enable_audio = xyes; then
  2626           case $ARCH in
  2627             sysv5|solaris|hpux)
  2628                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2629                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2630                 have_audio=yes
  2631             ;;
  2632             netbsd)  # Don't use this on OpenBSD, it's busted.
  2633                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2634                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2635                 have_audio=yes
  2636             ;;
  2637             aix)
  2638                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2639                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2640                 have_audio=yes
  2641             ;;
  2642           esac
  2643         fi
  2644         # Set up files for the joystick library
  2645         if test x$enable_joystick = xyes; then
  2646           case $ARCH in
  2647             linux)
  2648                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2649                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2650                 have_joystick=yes
  2651             ;;
  2652           esac
  2653         fi
  2654         # Set up files for the haptic library
  2655         if test x$enable_haptic = xyes; then
  2656            if test x$use_input_events = xyes; then
  2657              case $ARCH in
  2658                linux)
  2659                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2660                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2661                    have_haptic=yes
  2662                ;;
  2663              esac
  2664            fi
  2665         fi
  2666         # Set up files for the power library
  2667         if test x$enable_power = xyes; then
  2668              case $ARCH in
  2669                linux)
  2670                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2671                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2672                    have_power=yes
  2673                ;;
  2674              esac
  2675         fi
  2676         # Set up files for the filesystem library
  2677         if test x$enable_filesystem = xyes; then
  2678             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2679             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2680             have_filesystem=yes
  2681         fi
  2682         # Set up files for the timer library
  2683         if test x$enable_timers = xyes; then
  2684             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2685             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2686             have_timers=yes
  2687         fi
  2688         # Set up files for udev hotplugging support
  2689         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2690             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2691         fi
  2692         # Set up files for evdev input
  2693         if test x$use_input_events = xyes; then
  2694             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2695         fi       
  2696         ;;
  2697     *-*-cygwin* | *-*-mingw32*)
  2698         ARCH=win32
  2699         if test "$build" != "$host"; then # cross-compiling
  2700             # Default cross-compile location
  2701             ac_default_prefix=/usr/local/cross-tools/$host
  2702         else
  2703             # Look for the location of the tools and install there
  2704             if test "$BUILD_PREFIX" != ""; then
  2705                 ac_default_prefix=$BUILD_PREFIX
  2706             fi
  2707         fi
  2708         CheckDummyVideo
  2709         CheckDiskAudio
  2710         CheckDummyAudio
  2711         CheckWINDOWS
  2712         CheckWINDOWSGL
  2713         CheckWINDOWSGLES
  2714         CheckDIRECTX
  2715 
  2716         # Set up the core platform files
  2717         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2718 
  2719         # Set up files for the video library
  2720         if test x$enable_video = xyes; then
  2721             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2722             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2723             have_video=yes
  2724             AC_ARG_ENABLE(render-d3d,
  2725 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2726                                 , enable_render_d3d=yes)
  2727             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2728                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2729             fi
  2730         fi
  2731         # Set up files for the audio library
  2732         if test x$enable_audio = xyes; then
  2733             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2734             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2735             if test x$have_dsound = xyes; then
  2736                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2737                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2738             fi
  2739             if test x$have_xaudio2 = xyes; then
  2740                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2741                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2742             fi
  2743             have_audio=yes
  2744         fi
  2745         # Set up files for the joystick library
  2746         if test x$enable_joystick = xyes; then
  2747             if test x$have_dinput = xyes; then
  2748                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2749                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2750                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2751             else
  2752                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2753                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2754             fi
  2755             have_joystick=yes
  2756         fi
  2757         if test x$enable_haptic = xyes; then
  2758             if test x$have_dinput = xyes; then
  2759                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2760                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2761                 have_haptic=yes
  2762             fi
  2763         fi
  2764         if test x$enable_power = xyes; then
  2765             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2766             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2767             have_power=yes
  2768         fi
  2769         if test x$enable_filesystem = xyes; then
  2770             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2771             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2772             have_filesystem=yes
  2773         fi
  2774         # Set up files for the thread library
  2775         if test x$enable_threads = xyes; then
  2776             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2777             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2778             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2779             have_threads=yes
  2780         fi
  2781         # Set up files for the timer library
  2782         if test x$enable_timers = xyes; then
  2783             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2784             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2785             have_timers=yes
  2786         fi
  2787         # Set up files for the shared object loading library
  2788         if test x$enable_loadso = xyes; then
  2789             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2790             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2791             have_loadso=yes
  2792         fi
  2793         # Set up the system libraries we need
  2794         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc"
  2795         # The Windows platform requires special setup
  2796         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2797         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2798         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2799         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2800 
  2801         # Check to see if this is a mingw or cygwin build
  2802         have_mingw32=
  2803         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2804         if test x$have_mingw32 = xyes; then
  2805             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2806         else
  2807             SDL_LIBS="-lcygwin $SDL_LIBS"
  2808         fi
  2809         ;;
  2810 
  2811     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2812     *-*-beos*)
  2813         AC_MSG_ERROR([
  2814 *** BeOS support has been removed as of SDL 2.0.2.
  2815         ])
  2816         ;;
  2817 
  2818     *-*-haiku*)
  2819         ARCH=haiku
  2820         ac_default_prefix=/boot/system
  2821         CheckDummyVideo
  2822         CheckDiskAudio
  2823         CheckDummyAudio
  2824         CheckHaikuVideo
  2825         CheckHaikuGL
  2826         CheckPTHREAD
  2827 
  2828         # Set up files for the audio library
  2829         if test x$enable_audio = xyes; then
  2830             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2831             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2832             have_audio=yes
  2833         fi
  2834         # Set up files for the joystick library
  2835         if test x$enable_joystick = xyes; then
  2836             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2837             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2838             have_joystick=yes
  2839         fi
  2840         # Set up files for the timer library
  2841         if test x$enable_timers = xyes; then
  2842             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2843             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2844             have_timers=yes
  2845         fi
  2846         # Set up files for the shared object loading library
  2847         if test x$enable_loadso = xyes; then
  2848             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2849             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2850             have_loadso=yes
  2851         fi
  2852         # Set up files for the system power library
  2853         if test x$enable_power = xyes; then
  2854             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2855             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2856             have_power=yes
  2857         fi
  2858         # Set up files for the system filesystem library
  2859         if test x$enable_filesystem = xyes; then
  2860             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2861             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2862             have_filesystem=yes
  2863         fi
  2864         # The Haiku platform requires special setup.
  2865         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2866         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2867         ;;
  2868     arm*-apple-darwin*)
  2869         # iOS - We are not writing anything to confdefs.h because you have to replace
  2870         # SDL_config.h for SDL_config_iphoneos.h anyway
  2871         ARCH=ios
  2872 
  2873         CheckVisibilityHidden
  2874         CheckDummyVideo
  2875         CheckDiskAudio
  2876         CheckDummyAudio
  2877         CheckDLOPEN
  2878         CheckCOCOA
  2879         CheckPTHREAD
  2880 
  2881 
  2882         # Set up files for the audio library
  2883         if test x$enable_audio = xyes; then
  2884             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2885             have_audio=yes
  2886         fi
  2887         # Set up files for the joystick library
  2888         if test x$enable_joystick = xyes; then
  2889             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2890             have_joystick=yes
  2891         fi
  2892         # Set up files for the haptic library
  2893         #if test x$enable_haptic = xyes; then
  2894         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2895         #    have_haptic=yes
  2896         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2897         #fi
  2898         # Set up files for the power library
  2899         if test x$enable_power = xyes; then
  2900             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2901             have_power=yes
  2902         fi
  2903         # Set up files for the filesystem library
  2904         if test x$enable_filesystem = xyes; then
  2905             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2906             have_filesystem=yes
  2907         fi
  2908         # Set up files for the timer library
  2909         if test x$enable_timers = xyes; then
  2910             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2911             have_timers=yes
  2912         fi
  2913         # Set up additional files for the file library
  2914         if test x$enable_file = xyes; then
  2915             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2916         fi
  2917         # The iOS platform requires special setup.
  2918         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2919         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2920         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2921         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2922         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2923         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2924         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2925         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  2926         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  2927         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  2928         ;;
  2929     *-*-darwin* )
  2930         # This could be either full "Mac OS X", or plain "Darwin" which is
  2931         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  2932         # Next line is broken, and a few files below require Mac OS X (full)
  2933         ARCH=macosx
  2934 
  2935         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  2936         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  2937         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  2938 
  2939         CheckVisibilityHidden
  2940         CheckDummyVideo
  2941         CheckDiskAudio
  2942         CheckDummyAudio
  2943         CheckDLOPEN
  2944         CheckCOCOA
  2945         CheckX11
  2946         CheckMacGL
  2947         CheckOpenGLX11
  2948         CheckPTHREAD
  2949 
  2950         # Need this or things might misbuild on a G3.
  2951         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  2952 
  2953         # Set up files for the audio library
  2954         if test x$enable_audio = xyes; then
  2955             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  2956             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2957             have_audio=yes
  2958         fi
  2959         # Set up files for the joystick library
  2960         if test x$enable_joystick = xyes; then
  2961             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  2962             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  2963             have_joystick=yes
  2964         fi
  2965         # Set up files for the haptic library
  2966         if test x$enable_haptic = xyes; then
  2967             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  2968             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2969             have_haptic=yes
  2970             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2971         fi
  2972         # Set up files for the power library
  2973         if test x$enable_power = xyes; then
  2974             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  2975             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  2976             have_power=yes
  2977         fi
  2978         # Set up files for the filesystem library
  2979         if test x$enable_filesystem = xyes; then
  2980             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  2981             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2982             have_filesystem=yes
  2983         fi
  2984         # Set up files for the timer library
  2985         if test x$enable_timers = xyes; then
  2986             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2987             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2988             have_timers=yes
  2989         fi
  2990         # Set up additional files for the file library
  2991         if test x$enable_file = xyes; then
  2992             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2993         fi
  2994         # The Mac OS X platform requires special setup.
  2995         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2996         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  2997         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  2998         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  2999         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3000         # If audio is used, add the AudioUnit framework
  3001         if test x$enable_audio = xyes; then
  3002             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3003         fi
  3004         ;;
  3005     *)
  3006         AC_MSG_ERROR([
  3007 *** Unsupported host:  Please add to configure.in
  3008         ])
  3009         ;;
  3010 esac
  3011 
  3012 dnl Do this on all platforms, after everything else.
  3013 CheckWarnAll
  3014 
  3015 # Verify that we have all the platform specific files we need
  3016 
  3017 if test x$have_joystick != xyes; then
  3018     if test x$enable_joystick = xyes; then
  3019         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3020     fi
  3021     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3022 fi
  3023 if test x$have_haptic != xyes; then
  3024     if test x$enable_haptic = xyes; then
  3025         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3026     fi
  3027     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3028 fi
  3029 if test x$have_threads != xyes; then
  3030     if test x$enable_threads = xyes; then
  3031         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3032     fi
  3033     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3034 fi
  3035 if test x$have_timers != xyes; then
  3036     if test x$enable_timers = xyes; then
  3037         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3038     fi
  3039     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3040 fi
  3041 if test x$have_filesystem != xyes; then
  3042     if test x$enable_filesystem = xyes; then
  3043         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3044     fi
  3045     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3046 fi
  3047 if test x$have_loadso != xyes; then
  3048     if test x$enable_loadso = xyes; then
  3049         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3050     fi
  3051     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3052 fi
  3053 if test x$SDLMAIN_SOURCES = x; then
  3054     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3055 fi
  3056 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3057 
  3058 OBJECTS=`echo $SOURCES`
  3059 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3060 for EXT in asm cc m c S; do
  3061     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3062     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3063 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3064 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3065 done
  3066 
  3067 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3068 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3069 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3070 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3071 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3072 	\\$(WINDRES) \\$< \\$@,g"`
  3073 
  3074 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3075 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3076 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3077 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3078 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3079 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3080 
  3081 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3082 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3083 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3084 SDLTEST_DEPENDS=`echo "$SDLTEST_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 # Set runtime shared library paths as needed
  3089 
  3090 if test "x$enable_rpath" = "xyes"; then
  3091   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3092     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3093   fi
  3094   if test $ARCH = solaris; then
  3095     SDL_RLD_FLAGS="-R\${libdir}"
  3096   fi
  3097 else
  3098   SDL_RLD_FLAGS=""
  3099 fi
  3100 
  3101 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3102 
  3103 dnl Expand the cflags and libraries needed by apps using SDL
  3104 AC_SUBST(SDL_CFLAGS)
  3105 AC_SUBST(SDL_LIBS)
  3106 AC_SUBST(SDL_STATIC_LIBS)
  3107 AC_SUBST(SDL_RLD_FLAGS)
  3108 if test x$enable_shared = xyes; then
  3109     ENABLE_SHARED_TRUE=
  3110     ENABLE_SHARED_FALSE="#"
  3111 else
  3112     ENABLE_SHARED_TRUE="#"
  3113     ENABLE_SHARED_FALSE=
  3114 fi
  3115 if test x$enable_static = xyes; then
  3116     ENABLE_STATIC_TRUE=
  3117     ENABLE_STATIC_FALSE="#"
  3118 else
  3119     ENABLE_STATIC_TRUE="#"
  3120     ENABLE_STATIC_FALSE=
  3121 fi
  3122 AC_SUBST(ENABLE_SHARED_TRUE)
  3123 AC_SUBST(ENABLE_SHARED_FALSE)
  3124 AC_SUBST(ENABLE_STATIC_TRUE)
  3125 AC_SUBST(ENABLE_STATIC_FALSE)
  3126 
  3127 dnl Expand the sources and objects needed to build the library
  3128 AC_SUBST(ac_aux_dir)
  3129 AC_SUBST(INCLUDE)
  3130 AC_SUBST(OBJECTS)
  3131 AC_SUBST(VERSION_OBJECTS)
  3132 AC_SUBST(SDLMAIN_OBJECTS)
  3133 AC_SUBST(SDLTEST_OBJECTS)
  3134 AC_SUBST(BUILD_CFLAGS)
  3135 AC_SUBST(EXTRA_CFLAGS)
  3136 AC_SUBST(BUILD_LDFLAGS)
  3137 AC_SUBST(EXTRA_LDFLAGS)
  3138 AC_SUBST(WINDRES)
  3139 
  3140 cat >Makefile.rules <<__EOF__
  3141 
  3142 # Build rules for objects
  3143 -include \$(OBJECTS:.lo=.d)
  3144 
  3145 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3146 $srcdir/src/SDL.c: update-revision
  3147 $DEPENDS
  3148 $VERSION_DEPENDS
  3149 $SDLMAIN_DEPENDS
  3150 $SDLTEST_DEPENDS
  3151 __EOF__
  3152 
  3153 AC_CONFIG_FILES([
  3154     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3155 ])
  3156 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3157 
  3158 SUMMARY="SDL2 Configure Summary:\n"
  3159 if test x$enable_shared = xyes; then
  3160     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3161 fi
  3162 if test x$enable_static = xyes; then
  3163     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3164 fi
  3165 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3166 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3167 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3168 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3169 if test x$have_x = xyes; then
  3170     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3171 fi
  3172 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3173 if test x$enable_libudev = xyes; then
  3174     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3175 else
  3176     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3177 fi
  3178 if test x$have_dbus_dbus_h_hdr = xyes; then
  3179     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3180 else
  3181     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3182 fi
  3183 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3184 
  3185 AC_OUTPUT