configure.in
author Gabriel Jacobo <gabomdq@gmail.com>
Thu, 30 Jan 2014 20:29:58 -0300
changeset 8147 9802c269104f
parent 8146 bfff4df36f0b
child 8153 3e43c73ac79b
permissions -rw-r--r--
Treacherous copy/paste!
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README.txt)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_CONFIG_AUX_DIR(build-scripts)
     5 AC_CONFIG_MACRO_DIR([acinclude])
     6 
     7 dnl Save the CFLAGS to see whether they were passed in or generated
     8 orig_CFLAGS="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=1
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=1
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(altivec,
   633 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   634                   , enable_altivec=yes)
   635     if test x$enable_altivec = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_altivec=no
   638         have_altivec_h_hdr=no
   639         altivec_CFLAGS="-maltivec"
   640         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   641 
   642         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   643         AC_TRY_COMPILE([
   644         #include <altivec.h>
   645         vector unsigned int vzero() {
   646             return vec_splat_u32(0);
   647         }
   648         ],[
   649         ],[
   650         have_gcc_altivec=yes
   651         have_altivec_h_hdr=yes
   652         ])
   653         AC_MSG_RESULT($have_gcc_altivec)
   654 
   655         if test x$have_gcc_altivec = xno; then
   656             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   657             AC_TRY_COMPILE([
   658             vector unsigned int vzero() {
   659                 return vec_splat_u32(0);
   660             }
   661             ],[
   662             ],[
   663             have_gcc_altivec=yes
   664             ])
   665             AC_MSG_RESULT($have_gcc_altivec)
   666         fi
   667 
   668         if test x$have_gcc_altivec = xno; then
   669             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   670             altivec_CFLAGS="-faltivec"
   671             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   672             AC_TRY_COMPILE([
   673             #include <altivec.h>
   674             vector unsigned int vzero() {
   675                 return vec_splat_u32(0);
   676             }
   677             ],[
   678             ],[
   679             have_gcc_altivec=yes
   680             have_altivec_h_hdr=yes
   681             ])
   682             AC_MSG_RESULT($have_gcc_altivec)
   683         fi
   684 
   685         if test x$have_gcc_altivec = xno; then
   686             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   687             AC_TRY_COMPILE([
   688             vector unsigned int vzero() {
   689                 return vec_splat_u32(0);
   690             }
   691             ],[
   692             ],[
   693             have_gcc_altivec=yes
   694             ])
   695             AC_MSG_RESULT($have_gcc_altivec)
   696         fi
   697         CFLAGS="$save_CFLAGS"
   698 
   699         if test x$have_gcc_altivec = xyes; then
   700             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   701             if test x$have_altivec_h_hdr = xyes; then
   702               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   703             fi
   704             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   705             SUMMARY_math="${SUMMARY_math} altivec"
   706         fi
   707     fi
   708 fi
   709 
   710 dnl See if the OSS audio interface is supported
   711 CheckOSS()
   712 {
   713     AC_ARG_ENABLE(oss,
   714 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   715                   , enable_oss=maybe)
   716 
   717     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   718     #  use sndio instead. So on there, we default to disabled. You can force
   719     #  it on if you really want, though.
   720     if test x$enable_oss = xmaybe; then
   721         enable_oss=yes
   722         case "$host" in
   723             *-*-openbsd*)
   724                 enable_oss=no;;
   725         esac
   726     fi
   727 
   728     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   729         AC_MSG_CHECKING(for OSS audio support)
   730         have_oss=no
   731         if test x$have_oss != xyes; then
   732             AC_TRY_COMPILE([
   733               #include <sys/soundcard.h>
   734             ],[
   735               int arg = SNDCTL_DSP_SETFRAGMENT;
   736             ],[
   737             have_oss=yes
   738             ])
   739         fi
   740         if test x$have_oss != xyes; then
   741             AC_TRY_COMPILE([
   742               #include <soundcard.h>
   743             ],[
   744               int arg = SNDCTL_DSP_SETFRAGMENT;
   745             ],[
   746             have_oss=yes
   747             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   748             ])
   749         fi
   750         AC_MSG_RESULT($have_oss)
   751         if test x$have_oss = xyes; then
   752             SUMMARY_audio="${SUMMARY_audio} oss"
   753             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   754             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   755             have_audio=yes
   756 
   757             # We may need to link with ossaudio emulation library
   758             case "$host" in
   759                 *-*-openbsd*|*-*-netbsd*)
   760                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   761             esac
   762         fi
   763     fi
   764 }
   765 
   766 dnl See if the ALSA audio interface is supported
   767 CheckALSA()
   768 {
   769     AC_ARG_ENABLE(alsa,
   770 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   771                   , enable_alsa=yes)
   772     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   773         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$alsa_save_CFLAGS"
   776         LDFLAGS="$alsa_save_LDFLAGS"
   777         LIBS="$alsa_save_LIBS"
   778         if test x$have_alsa = xyes; then
   779             AC_ARG_ENABLE(alsa-shared,
   780 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   781                           , enable_alsa_shared=yes)
   782             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   783 
   784             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   785             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   786             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   787             if test x$have_loadso != xyes && \
   788                test x$enable_alsa_shared = xyes; then
   789                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   790             fi
   791             if test x$have_loadso = xyes && \
   792                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   793                 echo "-- dynamic libasound -> $alsa_lib"
   794                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   795                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   796             else
   797                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   798                 SUMMARY_audio="${SUMMARY_audio} alsa"
   799             fi
   800             have_audio=yes
   801         fi
   802     fi
   803 }
   804 
   805 dnl Find the ESD includes and libraries
   806 CheckESD()
   807 {
   808     AC_ARG_ENABLE(esd,
   809 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   810                   , enable_esd=yes)
   811     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   812         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   813         if test x$have_esd = xyes; then
   814             AC_ARG_ENABLE(esd-shared,
   815 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   816                           , enable_esd_shared=yes)
   817             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   818 
   819             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   820             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   821             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   822             if test x$have_loadso != xyes && \
   823                test x$enable_esd_shared = xyes; then
   824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   825             fi
   826             if test x$have_loadso = xyes && \
   827                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   828                 echo "-- dynamic libesd -> $esd_lib"
   829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   830                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   831             else
   832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   833                 SUMMARY_audio="${SUMMARY_audio} esd"
   834             fi
   835             have_audio=yes
   836         fi
   837     fi
   838 }
   839 
   840 dnl Find PulseAudio
   841 CheckPulseAudio()
   842 {
   843     AC_ARG_ENABLE(pulseaudio,
   844 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   845                   , enable_pulseaudio=yes)
   846     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   847         audio_pulseaudio=no
   848 
   849         PULSEAUDIO_REQUIRED_VERSION=0.9
   850 
   851         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   852         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   853         if test x$PKG_CONFIG != xno; then
   854         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   855                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   856                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   857                 audio_pulseaudio=yes
   858             fi
   859         fi
   860         AC_MSG_RESULT($audio_pulseaudio)
   861 
   862         if test x$audio_pulseaudio = xyes; then
   863             AC_ARG_ENABLE(pulseaudio-shared,
   864 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   865                           , enable_pulseaudio_shared=yes)
   866             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   867 
   868             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   869             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   870             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   871             if test x$have_loadso != xyes && \
   872                test x$enable_pulseaudio_shared = xyes; then
   873                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   874             fi
   875             if test x$have_loadso = xyes && \
   876                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   877                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   878                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   879                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   880 
   881                 case "$host" in
   882                     # On Solaris, pulseaudio must be linked deferred explicitly
   883                     # to prevent undefined symbol failures.
   884                     *-*-solaris*)
   885                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   886                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   887                 esac
   888             else
   889                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   890                 SUMMARY_audio="${SUMMARY_audio} pulse"
   891             fi
   892             have_audio=yes
   893         fi
   894     fi
   895 }
   896 
   897 CheckARTSC()
   898 {
   899     AC_ARG_ENABLE(arts,
   900 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   901                   , enable_arts=yes)
   902     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   903         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   904         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   905             : # arts isn't installed
   906         else
   907             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   908             ARTS_LIBS=`$ARTSCONFIG --libs`
   909             AC_MSG_CHECKING(for aRts development environment)
   910             audio_arts=no
   911             save_CFLAGS="$CFLAGS"
   912             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   913             AC_TRY_COMPILE([
   914              #include <artsc.h>
   915             ],[
   916              arts_stream_t stream;
   917             ],[
   918             audio_arts=yes
   919             ])
   920             CFLAGS="$save_CFLAGS"
   921             AC_MSG_RESULT($audio_arts)
   922             if test x$audio_arts = xyes; then
   923                 AC_ARG_ENABLE(arts-shared,
   924 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   925                               , enable_arts_shared=yes)
   926                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   927 
   928                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   929                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   930                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   931                 if test x$have_loadso != xyes && \
   932                    test x$enable_arts_shared = xyes; then
   933                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   934                 fi
   935                 if test x$have_loadso = xyes && \
   936                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   937                     echo "-- dynamic libartsc -> $arts_lib"
   938                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   939                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
   940                 else
   941                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   942                     SUMMARY_audio="${SUMMARY_audio} arts"
   943                 fi
   944                 have_audio=yes
   945             fi
   946         fi
   947     fi
   948 }
   949 
   950 dnl See if the NAS audio interface is supported
   951 CheckNAS()
   952 {
   953     AC_ARG_ENABLE(nas,
   954 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   955                   , enable_nas=yes)
   956     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   957         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   958         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   959 
   960         AC_MSG_CHECKING(for NAS audio support)
   961         have_nas=no
   962 
   963         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   964             have_nas=yes
   965             NAS_LIBS="-laudio"
   966 
   967         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   968             have_nas=yes
   969             NAS_CFLAGS="-I/usr/X11R6/include/"
   970             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   971 
   972         fi
   973 
   974         AC_MSG_RESULT($have_nas)
   975 
   976         if test x$have_nas = xyes; then
   977             AC_ARG_ENABLE(nas-shared,
   978 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   979                           , enable_nas_shared=yes)
   980             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   981 
   982             if test x$have_loadso != xyes && \
   983                test x$enable_nas_shared = xyes; then
   984                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   985             fi
   986             if test x$have_loadso = xyes && \
   987                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   988                 echo "-- dynamic libaudio -> $nas_lib"
   989                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   990                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
   991             else
   992                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   993                 SUMMARY_audio="${SUMMARY_audio} nas"
   994             fi
   995 
   996             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   997             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   998             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   999             have_audio=yes
  1000         fi
  1001     fi
  1002 }
  1003 
  1004 dnl See if the sndio audio interface is supported
  1005 CheckSNDIO()
  1006 {
  1007     AC_ARG_ENABLE(sndio,
  1008 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1009                   , enable_sndio=yes)
  1010     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1011         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1012         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1013 
  1014         AC_MSG_CHECKING(for sndio audio support)
  1015         have_sndio=no
  1016 
  1017         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1018             have_sndio=yes
  1019             SNDIO_LIBS="-lsndio"
  1020         fi
  1021 
  1022         AC_MSG_RESULT($have_sndio)
  1023 
  1024         if test x$have_sndio = xyes; then
  1025             AC_ARG_ENABLE(sndio-shared,
  1026 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1027                           , enable_sndio_shared=yes)
  1028             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1029 
  1030             if test x$have_loadso != xyes && \
  1031                test x$enable_sndio_shared = xyes; then
  1032                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1033             fi
  1034             if test x$have_loadso = xyes && \
  1035                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1036                 echo "-- dynamic libsndio -> $sndio_lib"
  1037                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1038                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1039             else
  1040                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1041                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1042             fi
  1043 
  1044             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1045             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1046             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1047             have_audio=yes
  1048         fi
  1049     fi
  1050 }
  1051 
  1052 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1053 CheckDiskAudio()
  1054 {
  1055     AC_ARG_ENABLE(diskaudio,
  1056 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1057                   , enable_diskaudio=yes)
  1058     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1059         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1060         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1061         SUMMARY_audio="${SUMMARY_audio} disk"
  1062     fi
  1063 }
  1064 
  1065 dnl rcg03142006 See if the user wants the dummy audio driver...
  1066 CheckDummyAudio()
  1067 {
  1068     AC_ARG_ENABLE(dummyaudio,
  1069 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1070                   , enable_dummyaudio=yes)
  1071     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1072         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1073         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1074         SUMMARY_audio="${SUMMARY_audio} dummy"
  1075     fi
  1076 }
  1077 
  1078 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1079 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1080 CheckVisibilityHidden()
  1081 {
  1082     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1083     have_gcc_fvisibility=no
  1084 
  1085     visibility_CFLAGS="-fvisibility=hidden"
  1086     save_CFLAGS="$CFLAGS"
  1087     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1088     AC_TRY_COMPILE([
  1089     #if !defined(__GNUC__) || __GNUC__ < 4
  1090     #error SDL only uses visibility attributes in GCC 4 or newer
  1091     #endif
  1092     ],[
  1093     ],[
  1094     have_gcc_fvisibility=yes
  1095     ])
  1096     AC_MSG_RESULT($have_gcc_fvisibility)
  1097     CFLAGS="$save_CFLAGS"
  1098 
  1099     if test x$have_gcc_fvisibility = xyes; then
  1100         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1101     fi
  1102 }
  1103 
  1104 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1105 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1106 CheckStackBoundary()
  1107 {
  1108     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1109     have_gcc_preferred_stack_boundary=no
  1110 
  1111     save_CFLAGS="$CFLAGS"
  1112     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1113     AC_TRY_COMPILE([
  1114     int x = 0;
  1115     ],[
  1116     ],[
  1117     have_gcc_preferred_stack_boundary=yes
  1118     ])
  1119     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1120     CFLAGS="$save_CFLAGS"
  1121 
  1122     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1123         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 
  1128 dnl See if GCC's -Wall is supported.
  1129 CheckWarnAll()
  1130 {
  1131     AC_MSG_CHECKING(for GCC -Wall option)
  1132     have_gcc_Wall=no
  1133 
  1134     save_CFLAGS="$CFLAGS"
  1135     CFLAGS="$save_CFLAGS -Wall"
  1136     AC_TRY_COMPILE([
  1137     int x = 0;
  1138     ],[
  1139     ],[
  1140     have_gcc_Wall=yes
  1141     ])
  1142     AC_MSG_RESULT($have_gcc_Wall)
  1143     CFLAGS="$save_CFLAGS"
  1144 
  1145     if test x$have_gcc_Wall = xyes; then
  1146         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1147 
  1148         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1149         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1150         need_gcc_Wno_multichar=no
  1151         case "$host" in
  1152             *-*-haiku*)
  1153                 need_gcc_Wno_multichar=yes
  1154                 ;;
  1155         esac
  1156         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1157         if test x$need_gcc_Wno_multichar = xyes; then
  1158             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1159         fi
  1160     fi
  1161 }
  1162 
  1163 dnl Check for Wayland
  1164 CheckWayland()
  1165 {
  1166     AC_ARG_ENABLE(video-wayland,
  1167 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1168                   ,enable_video_wayland=yes)
  1169 
  1170     AC_ARG_ENABLE(video-wayland-qt-touch,
  1171 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1172                   ,enable_video_wayland_qt_touch=yes)
  1173 
  1174     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1175         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1176         AC_MSG_CHECKING(for Wayland support)
  1177         video_wayland=no
  1178         if test x$PKG_CONFIG != xno; then
  1179             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1180                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1181                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1182                 video_wayland=yes
  1183             fi
  1184         fi
  1185         AC_MSG_RESULT($video_wayland)
  1186 
  1187         if test x$video_wayland = xyes; then
  1188             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1189             if test x$enable_video_wayland_qt_touch = xyes; then
  1190                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1191             fi
  1192             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1193             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1194             AC_ARG_ENABLE(wayland-shared,
  1195 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1196                           , enable_wayland_shared=maybe)
  1197 
  1198             dnl FIXME: Do BSD and OS X need special cases?
  1199             case "$host" in
  1200                 *)
  1201                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1202                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1203                     if test x$wayland_egl_lib = x; then
  1204                         dnl This works in Ubuntu 13.10, maybe others
  1205                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1206                     fi
  1207                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1208                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1209                     ;;
  1210             esac
  1211 
  1212             if test x$enable_wayland_shared = xmaybe; then
  1213                 enable_wayland_shared=yes
  1214             fi
  1215             if test x$have_loadso != xyes && \
  1216                test x$enable_wayland_shared = xyes; then
  1217                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic WAYLAND loading])
  1218                 enable_wayland_shared=no
  1219             fi
  1220             if test x$have_loadso = xyes && \
  1221                test x$enable_wayland_shared = xyes && \
  1222                test x$wayland_client_lib != x && \
  1223                test x$wayland_egl_lib != x && \
  1224                test x$wayland_cursor_lib != x && \
  1225                test x$xkbcommon_lib != x; then
  1226                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1227                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1228                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1229                 echo "-- dynamic xkbcommon -> $xkbcommon_lib"
  1230                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1231                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1232                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1233                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1234                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1235             else
  1236                 enable_wayland_shared=no
  1237                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1238                 SUMMARY_video="${SUMMARY_video} wayland"
  1239             fi
  1240             have_video=yes
  1241         fi
  1242     fi
  1243 }
  1244 
  1245 dnl Find the X11 include and library directories
  1246 CheckX11()
  1247 {
  1248 
  1249 
  1250     AC_ARG_ENABLE(video-x11,
  1251 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1252                   , enable_video_x11=yes)
  1253     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1254         case "$host" in
  1255             *-*-darwin*)
  1256                 # This isn't necessary for X11, but fixes GLX detection
  1257                 if test "x$x_includes" = xNONE && \
  1258                    test "x$x_libraries" = xNONE && \
  1259                    test -d /usr/X11R6/include && \
  1260                    test -d /usr/X11R6/lib; then
  1261                     x_includes="/usr/X11R6/include"
  1262                     x_libraries="/usr/X11R6/lib"
  1263                 fi
  1264                 ;;
  1265         esac
  1266         AC_PATH_X
  1267         AC_PATH_XTRA
  1268         if test x$have_x = xyes; then
  1269             AC_ARG_ENABLE(x11-shared,
  1270 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1271                           , enable_x11_shared=maybe)
  1272 
  1273             case "$host" in
  1274                 *-*-darwin*)
  1275                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1276                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1277                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1278                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1279                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1280                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1281                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1282                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1283                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1284                     ;;
  1285                 *-*-openbsd*)
  1286                     x11_lib='libX11.so'
  1287                     x11ext_lib='libXext.so'
  1288                     xcursor_lib='libXcursor.so'
  1289                     xinerama_lib='libXinerama.so'
  1290                     xinput_lib='libXi.so'
  1291                     xrandr_lib='libXrandr.so'
  1292                     xrender_lib='libXrender.so'
  1293                     xss_lib='libXss.so'
  1294                     xvidmode_lib='libXxf86vm.so'
  1295                     ;;
  1296                 *)
  1297                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1298                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1299                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1300                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1301                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1302                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1303                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1304                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1305                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1306                     ;;
  1307             esac
  1308 
  1309             if test x$ac_cv_func_shmat != xyes; then
  1310                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1311             fi
  1312             CFLAGS="$CFLAGS $X_CFLAGS"
  1313             LDFLAGS="$LDFLAGS $X_LIBS"
  1314 
  1315             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1316                             have_xext_h_hdr=yes,
  1317                             have_xext_h_hdr=no,
  1318                             [#include <X11/Xlib.h>
  1319                              #include <X11/Xproto.h>
  1320                             ])
  1321             if test x$have_xext_h_hdr != xyes; then
  1322                AC_MSG_ERROR([
  1323 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1324                ])
  1325             fi
  1326 
  1327             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1328             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1329             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1330 
  1331             # Needed so SDL applications can include SDL_syswm.h
  1332             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1333 
  1334             if test x$enable_x11_shared = xmaybe; then
  1335                 enable_x11_shared=yes
  1336             fi
  1337             if test x$have_loadso != xyes && \
  1338                test x$enable_x11_shared = xyes; then
  1339                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1340                 enable_x11_shared=no
  1341             fi
  1342             if test x$have_loadso = xyes && \
  1343                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1344                 echo "-- dynamic libX11 -> $x11_lib"
  1345                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1346                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1347                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1348                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1349             else
  1350                 enable_x11_shared=no
  1351                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1352                 SUMMARY_video="${SUMMARY_video} x11"
  1353             fi
  1354             have_video=yes
  1355 
  1356             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1357             have_const_param_XextAddDisplay=no
  1358             AC_TRY_COMPILE([
  1359               #include <X11/Xlib.h>
  1360               #include <X11/Xproto.h>
  1361               #include <X11/extensions/Xext.h>
  1362               #include <X11/extensions/extutil.h>
  1363               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1364             ],[
  1365             ],[
  1366             have_const_param_XextAddDisplay=yes
  1367             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1368             ])
  1369             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1370 
  1371             AC_MSG_CHECKING(for const parameter to _XData32)
  1372 	    have_const_param_xdata32=no
  1373 	    AC_TRY_COMPILE([
  1374 	      #include <X11/Xlibint.h>
  1375 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1376 	    ],[
  1377 	    ],[
  1378 	    have_const_param_xdata32=yes
  1379 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1380 	    ])
  1381 	    AC_MSG_RESULT($have_const_param_xdata32)
  1382 
  1383             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1384             AC_MSG_CHECKING([for XGenericEvent])
  1385             have_XGenericEvent=no
  1386             AC_TRY_COMPILE([
  1387               	#include <X11/Xlib.h>
  1388             ],[
  1389 Display *display;
  1390 XEvent event;
  1391 XGenericEventCookie *cookie = &event.xcookie;
  1392 XNextEvent(display, &event);
  1393 XGetEventData(display, cookie);
  1394 XFreeEventData(display, cookie);
  1395             ],[
  1396                 have_XGenericEvent=yes
  1397                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1398             ])
  1399             AC_MSG_RESULT($have_XGenericEvent)
  1400 
  1401             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1402 
  1403             AC_ARG_ENABLE(video-x11-xcursor,
  1404 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1405                             , enable_video_x11_xcursor=yes)
  1406             if test x$enable_video_x11_xcursor = xyes; then
  1407                 definitely_enable_video_x11_xcursor=no
  1408                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1409                                 have_xcursor_h_hdr=yes,
  1410                                 have_xcursor_h_hdr=no,
  1411                                 [#include <X11/Xlib.h>
  1412                                 ])
  1413                 if test x$have_xcursor_h_hdr = xyes; then
  1414                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1415                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1416                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1417                         definitely_enable_video_x11_xcursor=yes
  1418                     else
  1419                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1420                         if test x$have_xcursor_lib = xyes ; then
  1421                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1422                             definitely_enable_video_x11_xcursor=yes
  1423                         fi
  1424                     fi
  1425                 fi
  1426             fi
  1427             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1428                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1429                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1430             fi
  1431             AC_ARG_ENABLE(video-x11-xinerama,
  1432 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1433                             , enable_video_x11_xinerama=yes)
  1434             if test x$enable_video_x11_xinerama = xyes; then
  1435                 definitely_enable_video_x11_xinerama=no
  1436                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1437                                 have_xinerama_h_hdr=yes,
  1438                                 have_xinerama_h_hdr=no,
  1439                                 [#include <X11/Xlib.h>
  1440                                 ])
  1441                 if test x$have_xinerama_h_hdr = xyes; then
  1442                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1443                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1444                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1445                         definitely_enable_video_x11_xinerama=yes
  1446                     else
  1447                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1448                         if test x$have_xinerama_lib = xyes ; then
  1449                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1450                             definitely_enable_video_x11_xinerama=yes
  1451                         fi
  1452                     fi
  1453                 fi
  1454             fi
  1455             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1456                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1457                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1458             fi
  1459             AC_ARG_ENABLE(video-x11-xinput,
  1460 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1461                             , enable_video_x11_xinput=yes)
  1462             if test x$enable_video_x11_xinput = xyes; then
  1463                 definitely_enable_video_x11_xinput=no
  1464                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1465                                 have_xinput_h_hdr=yes,
  1466                                 have_xinput_h_hdr=no,
  1467                                 [#include <X11/Xlib.h>
  1468                                 ])
  1469                 if test x$have_xinput_h_hdr = xyes; then
  1470                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1471                         echo "-- dynamic libXi -> $xinput_lib"
  1472                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1473                         definitely_enable_video_x11_xinput=yes
  1474                     else
  1475                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1476                         if test x$have_xinput_lib = xyes ; then
  1477                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1478                             definitely_enable_video_x11_xinput=yes
  1479                         fi
  1480                     fi
  1481                 fi
  1482             fi
  1483             if test x$definitely_enable_video_x11_xinput = xyes; then
  1484                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1485                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1486                 AC_MSG_CHECKING(for xinput2 multitouch)
  1487             	have_xinput2_multitouch=no
  1488             	AC_TRY_COMPILE([
  1489               		#include <X11/Xlib.h>
  1490              		#include <X11/Xproto.h>
  1491 			#include <X11/extensions/XInput2.h>
  1492             	],[
  1493 int event_type = XI_TouchBegin;
  1494 XITouchClassInfo *t;
  1495 Status 
  1496 XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f)
  1497 {
  1498     return (Status)0;
  1499 }
  1500             	],[
  1501             	have_xinput2_multitouch=yes
  1502             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1503                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1504             	])
  1505             	AC_MSG_RESULT($have_xinput2_multitouch)
  1506             fi
  1507             AC_ARG_ENABLE(video-x11-xrandr,
  1508 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1509                             , enable_video_x11_xrandr=yes)
  1510             if test x$enable_video_x11_xrandr = xyes; then
  1511                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1512                 definitely_enable_video_x11_xrandr=no
  1513                 have_xrandr_h_hdr=no
  1514                 AC_TRY_COMPILE([
  1515                 #include <X11/Xlib.h>
  1516                 #include <X11/extensions/Xrandr.h>
  1517                 ],[
  1518                 XRRScreenResources *res = NULL;
  1519                 ],[
  1520                 have_xrandr_h_hdr=yes
  1521                 ])
  1522                 if test x$have_xrandr_h_hdr = xyes; then
  1523                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1524                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1525                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1526                         definitely_enable_video_x11_xrandr=yes
  1527                     else
  1528                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1529                         if test x$have_xrandr_lib = xyes ; then
  1530                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1531                             definitely_enable_video_x11_xrandr=yes
  1532                         fi
  1533                     fi
  1534                 fi
  1535             fi
  1536             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1537                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1538                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1539             fi
  1540             AC_ARG_ENABLE(video-x11-scrnsaver,
  1541 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1542                             , enable_video_x11_scrnsaver=yes)
  1543             if test x$enable_video_x11_scrnsaver = xyes; then
  1544                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1545                                 have_scrnsaver_h_hdr=yes,
  1546                                 have_scrnsaver_h_hdr=no,
  1547                                 [#include <X11/Xlib.h>
  1548                                 ])
  1549                 if test x$have_scrnsaver_h_hdr = xyes; then
  1550                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1551                         echo "-- dynamic libXss -> $xss_lib"
  1552                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1553                         definitely_enable_video_x11_scrnsaver=yes
  1554                     else
  1555                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1556                         if test x$have_xss_lib = xyes ; then
  1557                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1558                             definitely_enable_video_x11_scrnsaver=yes
  1559                         fi
  1560                     fi
  1561                 fi
  1562             fi
  1563             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1564                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1565                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1566             fi
  1567             AC_ARG_ENABLE(video-x11-xshape,
  1568 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1569                             , enable_video_x11_xshape=yes)
  1570             if test x$enable_video_x11_xshape = xyes; then
  1571                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1572                                 have_shape_h_hdr=yes,
  1573                                 have_shape_h_hdr=no,
  1574                                 [#include <X11/Xlib.h>
  1575                                 ])
  1576                 if test x$have_shape_h_hdr = xyes; then
  1577                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1578                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1579                 fi
  1580             fi
  1581             AC_ARG_ENABLE(video-x11-vm,
  1582 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1583                             , enable_video_x11_vm=yes)
  1584             if test x$enable_video_x11_vm = xyes; then
  1585                 definitely_enable_video_x11_vm=no
  1586                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1587                                 have_vm_h_hdr=yes,
  1588                                 have_vm_h_hdr=no,
  1589                                 [#include <X11/Xlib.h>
  1590                                 ])
  1591                 if test x$have_vm_h_hdr = xyes; then
  1592                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1593                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1594                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1595                         definitely_enable_video_x11_vm=yes
  1596                     else
  1597                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1598                         if test x$have_vm_lib = xyes ; then
  1599                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1600                             definitely_enable_video_x11_vm=yes
  1601                         fi
  1602                     fi
  1603                 fi
  1604             fi
  1605             if test x$definitely_enable_video_x11_vm = xyes; then
  1606                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1607                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1608             fi
  1609         fi
  1610     fi
  1611 }
  1612 
  1613 dnl Set up the Haiku video driver if enabled
  1614 CheckHaikuVideo()
  1615 {
  1616     if test x$enable_video = xyes; then
  1617         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1618         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1619         have_video=yes
  1620         SUMMARY_video="${SUMMARY_video} haiku"
  1621     fi
  1622 }
  1623 
  1624 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1625 CheckCOCOA()
  1626 {
  1627     AC_ARG_ENABLE(video-cocoa,
  1628 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1629                   , enable_video_cocoa=yes)
  1630     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1631         save_CFLAGS="$CFLAGS"
  1632         dnl work around that we don't have Objective-C support in autoconf
  1633         CFLAGS="$CFLAGS -x objective-c"
  1634         AC_MSG_CHECKING(for Cocoa framework)
  1635         have_cocoa=no
  1636         AC_TRY_COMPILE([
  1637           #import <Cocoa/Cocoa.h>
  1638         ],[
  1639         ],[
  1640         have_cocoa=yes
  1641         ])
  1642         AC_MSG_RESULT($have_cocoa)
  1643         CFLAGS="$save_CFLAGS"
  1644         if test x$have_cocoa = xyes; then
  1645             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1646             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1647             SUMMARY_video="${SUMMARY_video} cocoa"
  1648             have_video=yes
  1649         fi
  1650     fi
  1651 }
  1652 
  1653 dnl Find DirectFB
  1654 CheckDirectFB()
  1655 {
  1656     AC_ARG_ENABLE(video-directfb,
  1657 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1658                   , enable_video_directfb=no)
  1659     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1660         video_directfb=no
  1661 
  1662         DIRECTFB_REQUIRED_VERSION=1.0.0
  1663         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1664         if test x$DIRECTFBCONFIG = xno; then
  1665             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1666             if test x$PKG_CONFIG != xno; then
  1667                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1668                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1669                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1670                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1671                     video_directfb=yes
  1672                 fi
  1673             fi
  1674         else
  1675             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1676             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1677             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1678             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1679             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1680                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1681                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1682                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1683                 video_directfb=yes
  1684             fi
  1685         fi
  1686         if test x$video_directfb = xyes; then
  1687             # SuSE 11.1 installs directfb-config without directfb-devel
  1688             save_CPPFLAGS="$CPPFLAGS"
  1689             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1690             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1691             CPPFLAGS="$save_CPPFLAGS"
  1692             video_directfb=$have_directfb_hdr
  1693         fi
  1694         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1695         AC_MSG_RESULT($video_directfb)
  1696 
  1697         if test x$video_directfb = xyes; then
  1698             AC_ARG_ENABLE(directfb-shared,
  1699 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1700                               , enable_directfb_shared=yes)
  1701 
  1702             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1703             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1704             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1705             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1706 
  1707             AC_MSG_CHECKING(for directfb dynamic loading support)
  1708             directfb_shared=no
  1709             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1710             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1711 AC_MSG_WARN("directfb $directfb_lib")
  1712             if test x$have_loadso != xyes && \
  1713                test x$enable_directfb_shared = xyes; then
  1714                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1715             fi
  1716             if test x$have_loadso = xyes && \
  1717                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1718                 directfb_shared=yes
  1719                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1720                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1721                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1722             else
  1723                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1724                 SUMMARY_video="${SUMMARY_video} directfb"
  1725             fi
  1726             AC_MSG_RESULT($directfb_shared)
  1727             have_video=yes
  1728         fi
  1729     fi
  1730 }
  1731 
  1732 dnl Find FusionSound
  1733 CheckFusionSound()
  1734 {
  1735     AC_ARG_ENABLE(fusionsound,
  1736 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1737                   , enable_fusionsound=no)
  1738     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1739         fusionsound=no
  1740 
  1741         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1742 
  1743         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1744         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1745         if test x$PKG_CONFIG != xno; then
  1746             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1747                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1748                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1749                 fusionsound=yes
  1750             fi
  1751         fi
  1752         AC_MSG_RESULT($fusionsound)
  1753 
  1754         if test x$fusionsound = xyes; then
  1755             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1756             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1757             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1758             
  1759             AC_ARG_ENABLE(fusionsound-shared,
  1760 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1761                           , enable_fusionsound_shared=yes)
  1762             fusionsound_shared=no
  1763             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1764             if test x$have_loadso != xyes && \
  1765                test x$enable_fusionsound_shared = xyes; then
  1766                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1767             fi
  1768             if test x$have_loadso = xyes && \
  1769                test x$enable_fusionsound_shared = xyes; then
  1770                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1771                 fusionsound_shared=yes
  1772                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1773             else
  1774                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1775                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1776             fi
  1777             AC_MSG_RESULT($fusionsound_shared)
  1778             
  1779             have_audio=yes
  1780         fi
  1781     fi
  1782 }
  1783 
  1784 dnl rcg04172001 Set up the Null video driver.
  1785 CheckDummyVideo()
  1786 {
  1787     AC_ARG_ENABLE(video-dummy,
  1788 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1789                   , enable_video_dummy=yes)
  1790     if test x$enable_video_dummy = xyes; then
  1791         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1792         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1793         have_video=yes
  1794         SUMMARY_video="${SUMMARY_video} dummy"
  1795     fi
  1796 }
  1797 
  1798 dnl Check to see if OpenGL support is desired
  1799 AC_ARG_ENABLE(video-opengl,
  1800 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1801               , enable_video_opengl=yes)
  1802 
  1803 dnl Find OpenGL
  1804 CheckOpenGLX11()
  1805 {
  1806     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1807         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1808         video_opengl=no
  1809         AC_TRY_COMPILE([
  1810          #include <GL/gl.h>
  1811          #include <GL/glx.h>
  1812         ],[
  1813         ],[
  1814         video_opengl=yes
  1815         ])
  1816         AC_MSG_RESULT($video_opengl)
  1817         if test x$video_opengl = xyes; then
  1818             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1819             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1820             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1821             SUMMARY_video="${SUMMARY_video} opengl"
  1822         fi
  1823     fi
  1824 }
  1825 
  1826 dnl Check to see if OpenGL ES support is desired
  1827 AC_ARG_ENABLE(video-opengles,
  1828 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1829               , enable_video_opengles=yes)
  1830 
  1831 dnl Find OpenGL ES
  1832 CheckOpenGLESX11()
  1833 {
  1834     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1835         AC_MSG_CHECKING(for EGL support)
  1836         video_opengl_egl=no
  1837         AC_TRY_COMPILE([
  1838          #include <EGL/egl.h>
  1839         ],[
  1840         ],[
  1841         video_opengl_egl=yes
  1842         ])
  1843         AC_MSG_RESULT($video_opengl_egl)
  1844         if test x$video_opengl_egl = xyes; then
  1845             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1846         fi
  1847             
  1848         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1849         video_opengles_v1=no
  1850         AC_TRY_COMPILE([
  1851          #include <GLES/gl.h>
  1852          #include <GLES/glext.h>
  1853         ],[
  1854         ],[
  1855         video_opengles_v1=yes
  1856         ])
  1857         AC_MSG_RESULT($video_opengles_v1)
  1858         if test x$video_opengles_v1 = xyes; then
  1859             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1860             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1861             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1862         fi
  1863         
  1864         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1865         video_opengles_v2=no
  1866         AC_TRY_COMPILE([
  1867          #include <GLES2/gl2.h>
  1868          #include <GLES2/gl2ext.h>
  1869         ],[
  1870         ],[
  1871         video_opengles_v2=yes
  1872         ])
  1873         AC_MSG_RESULT($video_opengles_v2)
  1874         if test x$video_opengles_v2 = xyes; then
  1875             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1876             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1877             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1878         fi
  1879     fi
  1880 }
  1881 
  1882 dnl Check for Windows OpenGL
  1883 CheckWINDOWSGL()
  1884 {
  1885     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1886         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1887         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1888         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1889         SUMMARY_video="${SUMMARY_video} opengl"
  1890     fi
  1891 }
  1892 
  1893 dnl Check for Windows OpenGL
  1894 CheckWINDOWSGLES()
  1895 {
  1896     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1897 
  1898         AC_MSG_CHECKING(for EGL support)
  1899         video_opengl_egl=no
  1900         AC_TRY_COMPILE([
  1901          #include <EGL/egl.h>
  1902         ],[
  1903         ],[
  1904         video_opengl_egl=yes
  1905         ])
  1906         AC_MSG_RESULT($video_opengl_egl)
  1907         if test x$video_opengl_egl = xyes; then
  1908             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1909             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1910             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1911         fi
  1912        
  1913         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1914         video_opengles_v2=no
  1915         AC_TRY_COMPILE([
  1916          #include <GLES2/gl2.h>
  1917          #include <GLES2/gl2ext.h>
  1918         ],[
  1919         ],[
  1920         video_opengles_v2=yes
  1921         ])
  1922         AC_MSG_RESULT($video_opengles_v2)
  1923         if test x$video_opengles_v2 = xyes; then
  1924             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1925             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1926             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1927             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1928         fi
  1929     fi
  1930 }
  1931 
  1932 dnl Check for Haiku OpenGL
  1933 CheckHaikuGL()
  1934 {
  1935     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1936         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1937         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  1938         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1939         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1940         SUMMARY_video="${SUMMARY_video} opengl"
  1941     fi
  1942 }
  1943 
  1944 dnl Check for MacOS OpenGL
  1945 CheckMacGL()
  1946 {
  1947     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1948         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1949         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  1950         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1951         SUMMARY_video="${SUMMARY_video} opengl"
  1952         case "$host" in
  1953             *-*-darwin*)
  1954                 if test x$enable_video_cocoa = xyes; then
  1955                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  1956                 fi
  1957         esac
  1958     fi
  1959 }
  1960 
  1961 dnl See if we can use the new unified event interface in Linux 2.4
  1962 CheckInputEvents()
  1963 {
  1964     dnl Check for Linux 2.4 unified input event interface support
  1965         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  1966         use_input_events=no
  1967         AC_TRY_COMPILE([
  1968           #include <linux/input.h>
  1969         ],[
  1970           #ifndef EVIOCGNAME
  1971           #error EVIOCGNAME() ioctl not available
  1972           #endif
  1973         ],[
  1974         use_input_events=yes
  1975         ])
  1976         AC_MSG_RESULT($use_input_events)
  1977         if test x$use_input_events = xyes; then
  1978             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  1979             SUMMARY_input="${SUMMARY_input} linuxev"
  1980         fi
  1981 }
  1982 
  1983 dnl See if we can use the kernel kd.h header
  1984 CheckInputKD()
  1985 {
  1986 
  1987     AC_MSG_CHECKING(for Linux kd.h)
  1988     use_input_kd=no
  1989     AC_TRY_COMPILE([
  1990       #include <linux/kd.h>
  1991       #include <linux/keyboard.h>
  1992     ],[
  1993         struct kbentry kbe;
  1994         kbe.kb_table = KG_CTRL;
  1995         ioctl(0, KDGKBENT, &kbe);
  1996     ],[
  1997     use_input_kd=yes
  1998     ])
  1999     AC_MSG_RESULT($use_input_kd)
  2000     if test x$use_input_kd = xyes; then
  2001         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2002         SUMMARY_input="${SUMMARY_input} linuxkd"
  2003     fi
  2004 }
  2005 
  2006 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2007 CheckLibUDev()
  2008 {
  2009     AC_ARG_ENABLE(libudev,
  2010 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2011                         , enable_libudev=yes)
  2012     if test x$enable_libudev = xyes; then
  2013         AC_CHECK_HEADER(libudev.h,
  2014                         have_libudev_h_hdr=yes,
  2015                         have_libudev_h_hdr=no)
  2016         if test x$have_libudev_h_hdr = xyes; then
  2017             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2018         fi
  2019     fi
  2020 }
  2021 
  2022 dnl See if the platform offers libdbus for various IPC techniques.
  2023 CheckDBus()
  2024 {
  2025     AC_ARG_ENABLE(dbus,
  2026 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2027                         , enable_dbus=yes)
  2028     if test x$enable_dbus = xyes; then
  2029         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2030         if test x$PKG_CONFIG != xno; then
  2031             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2032             save_CFLAGS="$CFLAGS"
  2033             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2034             AC_CHECK_HEADER(dbus/dbus.h,
  2035                             have_dbus_dbus_h_hdr=yes,
  2036                             have_dbus_dbus_h_hdr=no)
  2037             CFLAGS="$save_CFLAGS"
  2038             if test x$have_dbus_dbus_h_hdr = xyes; then
  2039                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2040                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2041             fi
  2042         fi
  2043     fi
  2044 }
  2045 
  2046 dnl See if we can use the Touchscreen input library
  2047 CheckTslib()
  2048 {
  2049     AC_ARG_ENABLE(input-tslib,
  2050 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2051                   , enable_input_tslib=yes)
  2052     if test x$enable_input_tslib = xyes; then
  2053         AC_MSG_CHECKING(for Touchscreen library support)
  2054         enable_input_tslib=no
  2055         AC_TRY_COMPILE([
  2056           #include "tslib.h"
  2057         ],[
  2058         ],[
  2059         enable_input_tslib=yes
  2060         ])
  2061         AC_MSG_RESULT($enable_input_tslib)
  2062         if test x$enable_input_tslib = xyes; then
  2063             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2064             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2065             SUMMARY_input="${SUMMARY_input} ts"
  2066         fi
  2067     fi
  2068 }
  2069 
  2070 dnl See what type of thread model to use on Linux and Solaris
  2071 CheckPTHREAD()
  2072 {
  2073     dnl Check for pthread support
  2074     AC_ARG_ENABLE(pthreads,
  2075 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2076                   , enable_pthreads=yes)
  2077     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2078     AC_ARG_ENABLE(pthread-sem,
  2079 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2080                   , enable_pthread_sem=yes)
  2081     case "$host" in
  2082         *-*-linux*|*-*-uclinux*)
  2083             pthread_cflags="-D_REENTRANT"
  2084             pthread_lib="-lpthread"
  2085             ;;
  2086         *-*-bsdi*)
  2087             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2088             pthread_lib=""
  2089             ;;
  2090         *-*-darwin*)
  2091             pthread_cflags="-D_THREAD_SAFE"
  2092 # causes Carbon.p complaints?
  2093 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2094             ;;
  2095         *-*-freebsd*|*-*-dragonfly*)
  2096             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2097             pthread_lib="-pthread"
  2098             ;;
  2099         *-*-netbsd*)
  2100             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2101             pthread_lib="-lpthread"
  2102             ;;
  2103         *-*-openbsd*)
  2104             pthread_cflags="-D_REENTRANT"
  2105             pthread_lib="-pthread"
  2106             ;;
  2107         *-*-solaris2.9)
  2108             # From Solaris 9+, posix4's preferred name is rt.
  2109             pthread_cflags="-D_REENTRANT"
  2110             pthread_lib="-lpthread -lrt"
  2111             ;;
  2112         *-*-solaris2.10)
  2113             # Solaris 10+ merged pthread into libc.
  2114             pthread_cflags="-D_REENTRANT"
  2115             pthread_lib="-lrt"
  2116             ;;
  2117         *-*-solaris*)
  2118             # Solaris 11+ merged rt into libc.
  2119             pthread_cflags="-D_REENTRANT"
  2120             pthread_lib=""
  2121             ;;
  2122         *-*-sysv5*)
  2123             pthread_cflags="-D_REENTRANT -Kthread"
  2124             pthread_lib=""
  2125             ;;
  2126         *-*-aix*)
  2127             pthread_cflags="-D_REENTRANT -mthreads"
  2128             pthread_lib="-lpthread"
  2129             ;;
  2130         *-*-hpux11*)
  2131             pthread_cflags="-D_REENTRANT"
  2132             pthread_lib="-L/usr/lib -lpthread"
  2133             ;;
  2134         *-*-haiku*)
  2135             pthread_cflags="-D_REENTRANT"
  2136             pthread_lib=""
  2137             ;;
  2138         *)
  2139             pthread_cflags="-D_REENTRANT"
  2140             pthread_lib="-lpthread"
  2141             ;;
  2142     esac
  2143     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2144         # Save the original compiler flags and libraries
  2145         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2146         # Add the pthread compiler flags and libraries
  2147         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2148         # Check to see if we have pthread support on this system
  2149         AC_MSG_CHECKING(for pthreads)
  2150         use_pthreads=no
  2151         AC_TRY_LINK([
  2152          #include <pthread.h>
  2153         ],[
  2154          pthread_attr_t type;
  2155          pthread_attr_init(&type);
  2156         ],[
  2157         use_pthreads=yes
  2158         ])
  2159         AC_MSG_RESULT($use_pthreads)
  2160         # Restore the compiler flags and libraries
  2161         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2162 
  2163         # Do futher testing if we have pthread support...
  2164         if test x$use_pthreads = xyes; then
  2165             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2166             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2167             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2168             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2169             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2170 
  2171             # Save the original compiler flags and libraries
  2172             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2173             # Add the pthread compiler flags and libraries
  2174             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2175 
  2176             # Check to see if recursive mutexes are available
  2177             AC_MSG_CHECKING(for recursive mutexes)
  2178             has_recursive_mutexes=no
  2179             if test x$has_recursive_mutexes = xno; then
  2180                 AC_TRY_COMPILE([
  2181                   #include <pthread.h>
  2182                 ],[
  2183                   pthread_mutexattr_t attr;
  2184                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2185                 ],[
  2186                 has_recursive_mutexes=yes
  2187                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2188                 ])
  2189             fi
  2190             if test x$has_recursive_mutexes = xno; then
  2191                 AC_TRY_COMPILE([
  2192                   #include <pthread.h>
  2193                 ],[
  2194                   pthread_mutexattr_t attr;
  2195                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2196                 ],[
  2197                 has_recursive_mutexes=yes
  2198                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2199                 ])
  2200             fi
  2201             AC_MSG_RESULT($has_recursive_mutexes)
  2202 
  2203             # Check to see if pthread semaphore support is missing
  2204             if test x$enable_pthread_sem = xyes; then
  2205                 AC_MSG_CHECKING(for pthread semaphores)
  2206                 have_pthread_sem=no
  2207                 AC_TRY_COMPILE([
  2208                   #include <pthread.h>
  2209                   #include <semaphore.h>
  2210                 ],[
  2211                 ],[
  2212                 have_pthread_sem=yes
  2213                 ])
  2214                 AC_MSG_RESULT($have_pthread_sem)
  2215             fi
  2216             if test x$have_pthread_sem = xyes; then
  2217                 AC_MSG_CHECKING(for sem_timedwait)
  2218                 have_sem_timedwait=no
  2219                 AC_TRY_LINK([
  2220                   #include <pthread.h>
  2221                   #include <semaphore.h>
  2222                 ],[
  2223                   sem_timedwait(NULL, NULL);
  2224                 ],[
  2225                 have_sem_timedwait=yes
  2226                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2227                 ])
  2228                 AC_MSG_RESULT($have_sem_timedwait)
  2229             fi
  2230 
  2231             AC_MSG_CHECKING(for pthread_spin_trylock)
  2232             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2233               has_pthread_spin_trylock=yes
  2234               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2235             ],[
  2236               has_pthread_spin_trylock=no
  2237             ])
  2238             AC_MSG_RESULT($has_pthread_spin_trylock)
  2239 
  2240             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2241             if test x$have_pthread_np_h = xyes; then
  2242                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2243             fi
  2244 
  2245             # Check to see if pthread naming is available
  2246             AC_MSG_CHECKING(for pthread_setname_np)
  2247             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2248               has_pthread_setname_np=yes
  2249               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2250             ],[
  2251               has_pthread_setname_np=no
  2252             ])
  2253             AC_MSG_RESULT($has_pthread_setname_np)
  2254 
  2255             AC_MSG_CHECKING(for pthread_set_name_np)
  2256             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2257               has_pthread_set_name_np=yes
  2258               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2259             ],[
  2260               has_pthread_set_name_np=no
  2261             ])
  2262             AC_MSG_RESULT($has_pthread_set_name_np)
  2263 
  2264             # Restore the compiler flags and libraries
  2265             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2266 
  2267             # Basic thread creation functions
  2268             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2269 
  2270             # Semaphores
  2271             # We can fake these with mutexes and condition variables if necessary
  2272             if test x$have_pthread_sem = xyes; then
  2273                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2274             else
  2275                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2276             fi
  2277 
  2278             # Mutexes
  2279             # We can fake these with semaphores if necessary
  2280             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2281 
  2282             # Condition variables
  2283             # We can fake these with semaphores and mutexes if necessary
  2284             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2285 
  2286             # Thread local storage
  2287             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2288 
  2289             have_threads=yes
  2290         fi
  2291     fi
  2292 }
  2293 
  2294 dnl Determine whether the compiler can produce Windows executables
  2295 CheckWINDOWS()
  2296 {
  2297     AC_MSG_CHECKING(Windows compiler)
  2298     have_win32_gcc=no
  2299     AC_TRY_COMPILE([
  2300      #include <windows.h>
  2301     ],[
  2302     ],[
  2303     have_win32_gcc=yes
  2304     ])
  2305     AC_MSG_RESULT($have_win32_gcc)
  2306     if test x$have_win32_gcc != xyes; then
  2307        AC_MSG_ERROR([
  2308 *** Your compiler ($CC) does not produce Windows executables!
  2309        ])
  2310     fi
  2311 
  2312     AC_MSG_CHECKING(Windows CE)
  2313     have_wince=no
  2314     AC_TRY_COMPILE([
  2315 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2316 #error This is not Windows CE
  2317 #endif
  2318     ],[
  2319     ],[
  2320     have_wince=yes
  2321        AC_MSG_ERROR([
  2322 *** Sorry, Windows CE is no longer supported.
  2323        ])
  2324     ])
  2325     AC_MSG_RESULT($have_wince)
  2326 
  2327     # This fixes Windows stack alignment with newer GCC
  2328     CheckStackBoundary
  2329 }
  2330 
  2331 dnl Find the DirectX includes and libraries
  2332 CheckDIRECTX()
  2333 {
  2334     AC_ARG_ENABLE(directx,
  2335 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2336                   , enable_directx=yes)
  2337     if test x$enable_directx = xyes; then
  2338         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2339         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2340         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2341         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2342         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2343 
  2344         SUMMARY_video="${SUMMARY_video} directx"
  2345         SUMMARY_audio="${SUMMARY_audio} directx"
  2346 
  2347         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2348         # FIXME:  ...so force it off for now.
  2349         case "$host" in
  2350             *-*-cygwin*)
  2351             have_dinput=false
  2352             ;;
  2353         esac
  2354     fi
  2355 }
  2356 
  2357 dnl Check for the dlfcn.h interface for dynamically loading objects
  2358 CheckDLOPEN()
  2359 {
  2360     AC_ARG_ENABLE(sdl-dlopen,
  2361 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2362                   , enable_sdl_dlopen=yes)
  2363     if test x$enable_sdl_dlopen = xyes; then
  2364         AC_MSG_CHECKING(for dlopen)
  2365         have_dlopen=no
  2366         AC_TRY_COMPILE([
  2367          #include <dlfcn.h>
  2368         ],[
  2369          void *handle = dlopen("", RTLD_NOW);
  2370          const char *loaderror = (char *) dlerror();
  2371         ],[
  2372         have_dlopen=yes
  2373         ])
  2374         AC_MSG_RESULT($have_dlopen)
  2375 
  2376         if test x$have_dlopen = xyes; then
  2377             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2378                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2379                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2380             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2381             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2382             have_loadso=yes
  2383         fi
  2384     fi
  2385 }
  2386 
  2387 dnl Check for the usbhid(3) library on *BSD
  2388 CheckUSBHID()
  2389 {
  2390     case "$host" in
  2391         *-*-*bsd*)
  2392             if test x$enable_joystick = xyes; then
  2393                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2394                 if test x$have_libusbhid = xyes; then
  2395                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2396                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2397                     USB_LIBS="$USB_LIBS -lusbhid"
  2398                 else
  2399                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2400                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2401                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2402                 fi
  2403                     
  2404                 save_CFLAGS="$CFLAGS"
  2405                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2406 
  2407                 AC_MSG_CHECKING(for usbhid)
  2408                 have_usbhid=no
  2409                 AC_TRY_COMPILE([
  2410                   #include <sys/types.h>
  2411                   #if defined(HAVE_USB_H)
  2412                   #include <usb.h>
  2413                   #endif
  2414                   #ifdef __DragonFly__
  2415                   # include <bus/usb/usb.h>
  2416                   # include <bus/usb/usbhid.h>
  2417                   #else
  2418                   # include <dev/usb/usb.h>
  2419                   # include <dev/usb/usbhid.h>
  2420                   #endif
  2421                   #if defined(HAVE_USBHID_H)
  2422                   #include <usbhid.h>
  2423                   #elif defined(HAVE_LIBUSB_H)
  2424                   #include <libusb.h>
  2425                   #elif defined(HAVE_LIBUSBHID_H)
  2426                   #include <libusbhid.h>
  2427                   #endif
  2428                 ],[
  2429                   struct report_desc *repdesc;
  2430                   struct usb_ctl_report *repbuf;
  2431                   hid_kind_t hidkind;
  2432                 ],[
  2433                 have_usbhid=yes
  2434                 ])
  2435                 AC_MSG_RESULT($have_usbhid)
  2436 
  2437                 if test x$have_usbhid = xyes; then
  2438                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2439                     have_usbhid_ucr_data=no
  2440                     AC_TRY_COMPILE([
  2441                       #include <sys/types.h>
  2442                       #if defined(HAVE_USB_H)
  2443                       #include <usb.h>
  2444                       #endif
  2445                       #ifdef __DragonFly__
  2446                       # include <bus/usb/usb.h>
  2447                       # include <bus/usb/usbhid.h>
  2448                       #else
  2449                       # include <dev/usb/usb.h>
  2450                       # include <dev/usb/usbhid.h>
  2451                       #endif
  2452                       #if defined(HAVE_USBHID_H)
  2453                       #include <usbhid.h>
  2454                       #elif defined(HAVE_LIBUSB_H)
  2455                       #include <libusb.h>
  2456                       #elif defined(HAVE_LIBUSBHID_H)
  2457                       #include <libusbhid.h>
  2458                       #endif
  2459                     ],[
  2460                       struct usb_ctl_report buf;
  2461                       if (buf.ucr_data) { }
  2462                     ],[
  2463                     have_usbhid_ucr_data=yes
  2464                     ])
  2465                     if test x$have_usbhid_ucr_data = xyes; then
  2466                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2467                     fi
  2468                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2469                     
  2470                     AC_MSG_CHECKING(for new usbhid API)
  2471                     have_usbhid_new=no
  2472                     AC_TRY_COMPILE([
  2473                       #include <sys/types.h>
  2474                       #if defined(HAVE_USB_H)
  2475                       #include <usb.h>
  2476                       #endif
  2477                       #ifdef __DragonFly__
  2478                       #include <bus/usb/usb.h>
  2479                       #include <bus/usb/usbhid.h>
  2480                       #else
  2481                       #include <dev/usb/usb.h>
  2482                       #include <dev/usb/usbhid.h>
  2483                       #endif
  2484                       #if defined(HAVE_USBHID_H)
  2485                       #include <usbhid.h>
  2486                       #elif defined(HAVE_LIBUSB_H)
  2487                       #include <libusb.h>
  2488                       #elif defined(HAVE_LIBUSBHID_H)
  2489                       #include <libusbhid.h>
  2490                       #endif
  2491                     ],[
  2492                       report_desc_t d;
  2493                       hid_start_parse(d, 1, 1);
  2494                     ],[
  2495                     have_usbhid_new=yes
  2496                     ])
  2497                     if test x$have_usbhid_new = xyes; then
  2498                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2499                     fi
  2500                     AC_MSG_RESULT($have_usbhid_new)
  2501 
  2502                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2503                     have_machine_joystick=no
  2504                     AC_TRY_COMPILE([
  2505                       #include <machine/joystick.h>
  2506                     ],[
  2507                       struct joystick t;
  2508                     ],[
  2509                     have_machine_joystick=yes
  2510                     ])
  2511                     if test x$have_machine_joystick = xyes; then
  2512                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2513                     fi
  2514                     AC_MSG_RESULT($have_machine_joystick)
  2515 
  2516                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2517                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2518                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2519                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2520                     have_joystick=yes
  2521                 fi
  2522                 CFLAGS="$save_CFLAGS"
  2523             fi
  2524         ;;
  2525     esac
  2526 }
  2527 
  2528 dnl Check for clock_gettime()
  2529 CheckClockGettime()
  2530 {
  2531     AC_ARG_ENABLE(clock_gettime,
  2532 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2533                   , enable_clock_gettime=yes)
  2534     if test x$enable_clock_gettime = xyes; then
  2535         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2536         if test x$have_clock_gettime = xyes; then
  2537             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2538             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2539         else
  2540             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2541             if test x$have_clock_gettime = xyes; then
  2542                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2543                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2544             fi
  2545         fi
  2546     fi
  2547 }
  2548 
  2549 dnl Check for a valid linux/version.h
  2550 CheckLinuxVersion()
  2551 {
  2552     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2553     if test x$have_linux_version_h = xyes; then
  2554         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2555     fi
  2556 }
  2557 
  2558 dnl Check if we want to use RPATH
  2559 CheckRPATH()
  2560 {
  2561     AC_ARG_ENABLE(rpath,
  2562 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2563                   , enable_rpath=yes)
  2564 }
  2565 
  2566 dnl Set up the configuration based on the host platform!
  2567 case "$host" in
  2568     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2569         case "$host" in
  2570             *-raspberry-linux*)
  2571                 # Raspberry Pi
  2572                 ARCH=linux
  2573                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2574                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2575                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2576                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2577                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2578 
  2579                 if test x$enable_video = xyes; then
  2580                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2581                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2582                 fi
  2583                 ;;
  2584             *-*-linux*)         ARCH=linux ;;
  2585             *-*-uclinux*)       ARCH=linux ;;
  2586             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2587             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2588             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2589             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2590             *-*-bsdi*)          ARCH=bsdi ;;
  2591             *-*-freebsd*)       ARCH=freebsd ;;
  2592             *-*-dragonfly*)     ARCH=freebsd ;;
  2593             *-*-netbsd*)        ARCH=netbsd ;;
  2594             *-*-openbsd*)       ARCH=openbsd ;;
  2595             *-*-sysv5*)         ARCH=sysv5 ;;
  2596             *-*-solaris*)       ARCH=solaris ;;
  2597             *-*-hpux*)          ARCH=hpux ;;
  2598             *-*-aix*)           ARCH=aix ;;
  2599             *-*-minix*)         ARCH=minix ;;
  2600         esac
  2601         CheckVisibilityHidden
  2602         CheckDummyVideo
  2603         CheckDiskAudio
  2604         CheckDummyAudio
  2605         CheckDLOPEN
  2606         CheckOSS
  2607         CheckALSA
  2608         CheckPulseAudio
  2609         CheckARTSC
  2610         CheckESD
  2611         CheckNAS
  2612         CheckSNDIO
  2613         CheckX11
  2614         CheckWayland
  2615         CheckDirectFB
  2616         CheckFusionSound
  2617         CheckOpenGLX11
  2618         CheckOpenGLESX11
  2619         CheckLibUDev
  2620         CheckDBus
  2621         CheckInputEvents
  2622         CheckInputKD
  2623         CheckTslib
  2624         CheckUSBHID
  2625         CheckPTHREAD
  2626         CheckClockGettime
  2627         CheckLinuxVersion
  2628         CheckRPATH
  2629         # Set up files for the audio library
  2630         if test x$enable_audio = xyes; then
  2631           case $ARCH in
  2632             sysv5|solaris|hpux)
  2633                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2634                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2635                 have_audio=yes
  2636             ;;
  2637             netbsd)  # Don't use this on OpenBSD, it's busted.
  2638                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2639                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2640                 have_audio=yes
  2641             ;;
  2642             aix)
  2643                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2644                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2645                 have_audio=yes
  2646             ;;
  2647           esac
  2648         fi
  2649         # Set up files for the joystick library
  2650         if test x$enable_joystick = xyes; then
  2651           case $ARCH in
  2652             linux)
  2653                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2654                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2655                 have_joystick=yes
  2656             ;;
  2657           esac
  2658         fi
  2659         # Set up files for the haptic library
  2660         if test x$enable_haptic = xyes; then
  2661            if test x$use_input_events = xyes; then
  2662              case $ARCH in
  2663                linux)
  2664                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2665                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2666                    have_haptic=yes
  2667                ;;
  2668              esac
  2669            fi
  2670         fi
  2671         # Set up files for the power library
  2672         if test x$enable_power = xyes; then
  2673              case $ARCH in
  2674                linux)
  2675                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2676                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2677                    have_power=yes
  2678                ;;
  2679              esac
  2680         fi
  2681         # Set up files for the filesystem library
  2682         if test x$enable_filesystem = xyes; then
  2683             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2684             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2685             have_filesystem=yes
  2686         fi
  2687         # Set up files for the timer library
  2688         if test x$enable_timers = xyes; then
  2689             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2690             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2691             have_timers=yes
  2692         fi
  2693         # Set up files for udev hotplugging support
  2694         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2695             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2696         fi
  2697         # Set up files for evdev input
  2698         if test x$use_input_events = xyes; then
  2699             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2700         fi       
  2701         ;;
  2702     *-*-cygwin* | *-*-mingw32*)
  2703         ARCH=win32
  2704         if test "$build" != "$host"; then # cross-compiling
  2705             # Default cross-compile location
  2706             ac_default_prefix=/usr/local/cross-tools/$host
  2707         else
  2708             # Look for the location of the tools and install there
  2709             if test "$BUILD_PREFIX" != ""; then
  2710                 ac_default_prefix=$BUILD_PREFIX
  2711             fi
  2712         fi
  2713         CheckDummyVideo
  2714         CheckDiskAudio
  2715         CheckDummyAudio
  2716         CheckWINDOWS
  2717         CheckWINDOWSGL
  2718         CheckWINDOWSGLES
  2719         CheckDIRECTX
  2720 
  2721         # Set up the core platform files
  2722         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2723 
  2724         # Set up files for the video library
  2725         if test x$enable_video = xyes; then
  2726             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2727             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2728             have_video=yes
  2729             AC_ARG_ENABLE(render-d3d,
  2730 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2731                                 , enable_render_d3d=yes)
  2732             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2733                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2734             fi
  2735         fi
  2736         # Set up files for the audio library
  2737         if test x$enable_audio = xyes; then
  2738             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2739             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2740             if test x$have_dsound = xyes; then
  2741                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2742                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2743             fi
  2744             if test x$have_xaudio2 = xyes; then
  2745                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2746                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2747             fi
  2748             have_audio=yes
  2749         fi
  2750         # Set up files for the joystick library
  2751         if test x$enable_joystick = xyes; then
  2752             if test x$have_dinput = xyes; then
  2753                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2754                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2755                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2756             else
  2757                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2758                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2759             fi
  2760             have_joystick=yes
  2761         fi
  2762         if test x$enable_haptic = xyes; then
  2763             if test x$have_dinput = xyes; then
  2764                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2765                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2766                 have_haptic=yes
  2767             fi
  2768         fi
  2769         if test x$enable_power = xyes; then
  2770             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2771             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2772             have_power=yes
  2773         fi
  2774         if test x$enable_filesystem = xyes; then
  2775             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2776             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2777             have_filesystem=yes
  2778         fi
  2779         # Set up files for the thread library
  2780         if test x$enable_threads = xyes; then
  2781             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2782             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2783             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2784             have_threads=yes
  2785         fi
  2786         # Set up files for the timer library
  2787         if test x$enable_timers = xyes; then
  2788             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2789             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2790             have_timers=yes
  2791         fi
  2792         # Set up files for the shared object loading library
  2793         if test x$enable_loadso = xyes; then
  2794             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2795             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2796             have_loadso=yes
  2797         fi
  2798         # Set up the system libraries we need
  2799         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion -luuid -XCClinker -static-libgcc"
  2800         # The Windows platform requires special setup
  2801         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2802         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2803         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2804         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2805 
  2806         # Check to see if this is a mingw or cygwin build
  2807         have_mingw32=
  2808         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2809         if test x$have_mingw32 = xyes; then
  2810             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2811         else
  2812             SDL_LIBS="-lcygwin $SDL_LIBS"
  2813         fi
  2814         ;;
  2815 
  2816     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2817     *-*-beos*)
  2818         AC_MSG_ERROR([
  2819 *** BeOS support has been removed as of SDL 2.0.2.
  2820         ])
  2821         ;;
  2822 
  2823     *-*-haiku*)
  2824         ARCH=haiku
  2825         ac_default_prefix=/boot/system
  2826         CheckDummyVideo
  2827         CheckDiskAudio
  2828         CheckDummyAudio
  2829         CheckHaikuVideo
  2830         CheckHaikuGL
  2831         CheckPTHREAD
  2832 
  2833         # Set up files for the audio library
  2834         if test x$enable_audio = xyes; then
  2835             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2836             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2837             have_audio=yes
  2838         fi
  2839         # Set up files for the joystick library
  2840         if test x$enable_joystick = xyes; then
  2841             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2842             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2843             have_joystick=yes
  2844         fi
  2845         # Set up files for the timer library
  2846         if test x$enable_timers = xyes; then
  2847             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2848             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2849             have_timers=yes
  2850         fi
  2851         # Set up files for the shared object loading library
  2852         if test x$enable_loadso = xyes; then
  2853             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2854             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2855             have_loadso=yes
  2856         fi
  2857         # Set up files for the system power library
  2858         if test x$enable_power = xyes; then
  2859             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2860             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2861             have_power=yes
  2862         fi
  2863         # Set up files for the system filesystem library
  2864         if test x$enable_filesystem = xyes; then
  2865             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2866             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2867             have_filesystem=yes
  2868         fi
  2869         # The Haiku platform requires special setup.
  2870         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2871         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2872         ;;
  2873     arm*-apple-darwin*)
  2874         # iOS - We are not writing anything to confdefs.h because you have to replace
  2875         # SDL_config.h for SDL_config_iphoneos.h anyway
  2876         ARCH=ios
  2877 
  2878         CheckVisibilityHidden
  2879         CheckDummyVideo
  2880         CheckDiskAudio
  2881         CheckDummyAudio
  2882         CheckDLOPEN
  2883         CheckCOCOA
  2884         CheckPTHREAD
  2885 
  2886 
  2887         # Set up files for the audio library
  2888         if test x$enable_audio = xyes; then
  2889             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2890             have_audio=yes
  2891         fi
  2892         # Set up files for the joystick library
  2893         if test x$enable_joystick = xyes; then
  2894             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2895             have_joystick=yes
  2896         fi
  2897         # Set up files for the haptic library
  2898         #if test x$enable_haptic = xyes; then
  2899         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2900         #    have_haptic=yes
  2901         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2902         #fi
  2903         # Set up files for the power library
  2904         if test x$enable_power = xyes; then
  2905             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2906             have_power=yes
  2907         fi
  2908         # Set up files for the filesystem library
  2909         if test x$enable_filesystem = xyes; then
  2910             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2911             have_filesystem=yes
  2912         fi
  2913         # Set up files for the timer library
  2914         if test x$enable_timers = xyes; then
  2915             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2916             have_timers=yes
  2917         fi
  2918         # Set up additional files for the file library
  2919         if test x$enable_file = xyes; then
  2920             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2921         fi
  2922         # The iOS platform requires special setup.
  2923         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2924         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2925         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2926         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2927         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2928         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2929         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2930         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  2931         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  2932         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  2933         ;;
  2934     *-*-darwin* )
  2935         # This could be either full "Mac OS X", or plain "Darwin" which is
  2936         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  2937         # Next line is broken, and a few files below require Mac OS X (full)
  2938         ARCH=macosx
  2939 
  2940         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  2941         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  2942         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  2943 
  2944         CheckVisibilityHidden
  2945         CheckDummyVideo
  2946         CheckDiskAudio
  2947         CheckDummyAudio
  2948         CheckDLOPEN
  2949         CheckCOCOA
  2950         CheckX11
  2951         CheckMacGL
  2952         CheckOpenGLX11
  2953         CheckPTHREAD
  2954 
  2955         # Need this or things might misbuild on a G3.
  2956         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  2957 
  2958         # Set up files for the audio library
  2959         if test x$enable_audio = xyes; then
  2960             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  2961             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2962             have_audio=yes
  2963         fi
  2964         # Set up files for the joystick library
  2965         if test x$enable_joystick = xyes; then
  2966             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  2967             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  2968             have_joystick=yes
  2969         fi
  2970         # Set up files for the haptic library
  2971         if test x$enable_haptic = xyes; then
  2972             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  2973             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2974             have_haptic=yes
  2975             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2976         fi
  2977         # Set up files for the power library
  2978         if test x$enable_power = xyes; then
  2979             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  2980             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  2981             have_power=yes
  2982         fi
  2983         # Set up files for the filesystem library
  2984         if test x$enable_filesystem = xyes; then
  2985             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  2986             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2987             have_filesystem=yes
  2988         fi
  2989         # Set up files for the timer library
  2990         if test x$enable_timers = xyes; then
  2991             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2992             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2993             have_timers=yes
  2994         fi
  2995         # Set up additional files for the file library
  2996         if test x$enable_file = xyes; then
  2997             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2998         fi
  2999         # The Mac OS X platform requires special setup.
  3000         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3001         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3002         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3003         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3004         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3005         # If audio is used, add the AudioUnit framework
  3006         if test x$enable_audio = xyes; then
  3007             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3008         fi
  3009         ;;
  3010     *)
  3011         AC_MSG_ERROR([
  3012 *** Unsupported host:  Please add to configure.in
  3013         ])
  3014         ;;
  3015 esac
  3016 
  3017 dnl Do this on all platforms, after everything else.
  3018 CheckWarnAll
  3019 
  3020 # Verify that we have all the platform specific files we need
  3021 
  3022 if test x$have_joystick != xyes; then
  3023     if test x$enable_joystick = xyes; then
  3024         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3025     fi
  3026     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3027 fi
  3028 if test x$have_haptic != xyes; then
  3029     if test x$enable_haptic = xyes; then
  3030         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3031     fi
  3032     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3033 fi
  3034 if test x$have_threads != xyes; then
  3035     if test x$enable_threads = xyes; then
  3036         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3037     fi
  3038     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3039 fi
  3040 if test x$have_timers != xyes; then
  3041     if test x$enable_timers = xyes; then
  3042         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3043     fi
  3044     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3045 fi
  3046 if test x$have_filesystem != xyes; then
  3047     if test x$enable_filesystem = xyes; then
  3048         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3049     fi
  3050     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3051 fi
  3052 if test x$have_loadso != xyes; then
  3053     if test x$enable_loadso = xyes; then
  3054         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3055     fi
  3056     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3057 fi
  3058 if test x$SDLMAIN_SOURCES = x; then
  3059     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3060 fi
  3061 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3062 
  3063 OBJECTS=`echo $SOURCES`
  3064 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3065 for EXT in asm cc m c S; do
  3066     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3067     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3068 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3069 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3070 done
  3071 
  3072 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3073 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3074 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3075 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3076 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3077 	\\$(WINDRES) \\$< \\$@,g"`
  3078 
  3079 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3080 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3081 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3082 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3083 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3084 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3085 
  3086 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3087 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3088 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3089 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3090 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3091 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3092 
  3093 # Set runtime shared library paths as needed
  3094 
  3095 if test "x$enable_rpath" = "xyes"; then
  3096   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3097     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3098   fi
  3099   if test $ARCH = solaris; then
  3100     SDL_RLD_FLAGS="-R\${libdir}"
  3101   fi
  3102 else
  3103   SDL_RLD_FLAGS=""
  3104 fi
  3105 
  3106 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3107 
  3108 dnl Expand the cflags and libraries needed by apps using SDL
  3109 AC_SUBST(SDL_CFLAGS)
  3110 AC_SUBST(SDL_LIBS)
  3111 AC_SUBST(SDL_STATIC_LIBS)
  3112 AC_SUBST(SDL_RLD_FLAGS)
  3113 if test x$enable_shared = xyes; then
  3114     ENABLE_SHARED_TRUE=
  3115     ENABLE_SHARED_FALSE="#"
  3116 else
  3117     ENABLE_SHARED_TRUE="#"
  3118     ENABLE_SHARED_FALSE=
  3119 fi
  3120 if test x$enable_static = xyes; then
  3121     ENABLE_STATIC_TRUE=
  3122     ENABLE_STATIC_FALSE="#"
  3123 else
  3124     ENABLE_STATIC_TRUE="#"
  3125     ENABLE_STATIC_FALSE=
  3126 fi
  3127 AC_SUBST(ENABLE_SHARED_TRUE)
  3128 AC_SUBST(ENABLE_SHARED_FALSE)
  3129 AC_SUBST(ENABLE_STATIC_TRUE)
  3130 AC_SUBST(ENABLE_STATIC_FALSE)
  3131 
  3132 dnl Expand the sources and objects needed to build the library
  3133 AC_SUBST(ac_aux_dir)
  3134 AC_SUBST(INCLUDE)
  3135 AC_SUBST(OBJECTS)
  3136 AC_SUBST(VERSION_OBJECTS)
  3137 AC_SUBST(SDLMAIN_OBJECTS)
  3138 AC_SUBST(SDLTEST_OBJECTS)
  3139 AC_SUBST(BUILD_CFLAGS)
  3140 AC_SUBST(EXTRA_CFLAGS)
  3141 AC_SUBST(BUILD_LDFLAGS)
  3142 AC_SUBST(EXTRA_LDFLAGS)
  3143 AC_SUBST(WINDRES)
  3144 
  3145 cat >Makefile.rules <<__EOF__
  3146 
  3147 # Build rules for objects
  3148 -include \$(OBJECTS:.lo=.d)
  3149 
  3150 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3151 $srcdir/src/SDL.c: update-revision
  3152 $DEPENDS
  3153 $VERSION_DEPENDS
  3154 $SDLMAIN_DEPENDS
  3155 $SDLTEST_DEPENDS
  3156 __EOF__
  3157 
  3158 AC_CONFIG_FILES([
  3159     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3160 ])
  3161 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3162 
  3163 SUMMARY="SDL2 Configure Summary:\n"
  3164 if test x$enable_shared = xyes; then
  3165     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3166 fi
  3167 if test x$enable_static = xyes; then
  3168     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3169 fi
  3170 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3171 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3172 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3173 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3174 if test x$have_x = xyes; then
  3175     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3176 fi
  3177 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3178 if test x$enable_libudev = xyes; then
  3179     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3180 else
  3181     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3182 fi
  3183 if test x$have_dbus_dbus_h_hdr = xyes; then
  3184     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3185 else
  3186     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3187 fi
  3188 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3189 
  3190 AC_OUTPUT