configure.in
author Sam Lantinga <slouken@libsdl.org>
Mon, 28 Aug 2017 00:11:38 -0700
changeset 11381 2610f8f0a9c6
parent 11367 e8fc755a89e8
child 11395 a8c29f5b679f
permissions -rw-r--r--
Be clear that disabling Vulkan surface support disables the entire SDL Vulkan integration
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=6
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=6
    26 SDL_VERSION=$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 $env_lib_path $gcc_bin_path $gcc_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 wchar.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$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$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=maybe]]]),
   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 -o x$have_gcc_sse3 = xyes; then
   486             EXTRA_CFLAGS="$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=maybe]]]),
   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(sse3,
   633 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   634                   , enable_sse3=$default_ssemath)
   635     if test x$enable_sse3 = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_sse3=no
   638         AC_MSG_CHECKING(for GCC -msse3 option)
   639         sse3_CFLAGS="-msse3"
   640         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   641 
   642         AC_TRY_COMPILE([
   643         #ifdef __MINGW32__
   644         #include <_mingw.h>
   645         #ifdef __MINGW64_VERSION_MAJOR
   646         #include <intrin.h>
   647         #else
   648         #include <pmmintrin.h>
   649         #endif
   650         #else
   651         #include <pmmintrin.h>
   652         #endif
   653         #ifndef __SSE2__
   654         #error Assembler CPP flag not enabled
   655         #endif
   656         ],[
   657         ],[
   658         have_gcc_sse3=yes
   659         ])
   660         AC_MSG_RESULT($have_gcc_sse3)
   661         CFLAGS="$save_CFLAGS"
   662 
   663         if test x$have_gcc_sse3 = xyes; then
   664             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   665             SUMMARY_math="${SUMMARY_math} sse3"
   666         fi
   667     fi
   668 
   669     AC_ARG_ENABLE(altivec,
   670 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   671                   , enable_altivec=yes)
   672     if test x$enable_altivec = xyes; then
   673         save_CFLAGS="$CFLAGS"
   674         have_gcc_altivec=no
   675         have_altivec_h_hdr=no
   676         altivec_CFLAGS="-maltivec"
   677         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   678 
   679         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   680         AC_TRY_COMPILE([
   681         #include <altivec.h>
   682         vector unsigned int vzero() {
   683             return vec_splat_u32(0);
   684         }
   685         ],[
   686         ],[
   687         have_gcc_altivec=yes
   688         have_altivec_h_hdr=yes
   689         ])
   690         AC_MSG_RESULT($have_gcc_altivec)
   691 
   692         if test x$have_gcc_altivec = xno; then
   693             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   694             AC_TRY_COMPILE([
   695             vector unsigned int vzero() {
   696                 return vec_splat_u32(0);
   697             }
   698             ],[
   699             ],[
   700             have_gcc_altivec=yes
   701             ])
   702             AC_MSG_RESULT($have_gcc_altivec)
   703         fi
   704 
   705         if test x$have_gcc_altivec = xno; then
   706             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   707             altivec_CFLAGS="-faltivec"
   708             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   709             AC_TRY_COMPILE([
   710             #include <altivec.h>
   711             vector unsigned int vzero() {
   712                 return vec_splat_u32(0);
   713             }
   714             ],[
   715             ],[
   716             have_gcc_altivec=yes
   717             have_altivec_h_hdr=yes
   718             ])
   719             AC_MSG_RESULT($have_gcc_altivec)
   720         fi
   721 
   722         if test x$have_gcc_altivec = xno; then
   723             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   724             AC_TRY_COMPILE([
   725             vector unsigned int vzero() {
   726                 return vec_splat_u32(0);
   727             }
   728             ],[
   729             ],[
   730             have_gcc_altivec=yes
   731             ])
   732             AC_MSG_RESULT($have_gcc_altivec)
   733         fi
   734         CFLAGS="$save_CFLAGS"
   735 
   736         if test x$have_gcc_altivec = xyes; then
   737             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   738             if test x$have_altivec_h_hdr = xyes; then
   739               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   740             fi
   741             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   742             SUMMARY_math="${SUMMARY_math} altivec"
   743         fi
   744     fi
   745 fi
   746 
   747 dnl See if the OSS audio interface is supported
   748 CheckOSS()
   749 {
   750     AC_ARG_ENABLE(oss,
   751 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   752                   , enable_oss=maybe)
   753 
   754     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   755     #  use sndio instead. So on there, we default to disabled. You can force
   756     #  it on if you really want, though.
   757     if test x$enable_oss = xmaybe; then
   758         enable_oss=yes
   759         case "$host" in
   760             *-*-openbsd*)
   761                 enable_oss=no;;
   762         esac
   763     fi
   764 
   765     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   766         AC_MSG_CHECKING(for OSS audio support)
   767         have_oss=no
   768         if test x$have_oss != xyes; then
   769             AC_TRY_COMPILE([
   770               #include <sys/soundcard.h>
   771             ],[
   772               int arg = SNDCTL_DSP_SETFRAGMENT;
   773             ],[
   774             have_oss=yes
   775             ])
   776         fi
   777         if test x$have_oss != xyes; then
   778             AC_TRY_COMPILE([
   779               #include <soundcard.h>
   780             ],[
   781               int arg = SNDCTL_DSP_SETFRAGMENT;
   782             ],[
   783             have_oss=yes
   784             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   785             ])
   786         fi
   787         AC_MSG_RESULT($have_oss)
   788         if test x$have_oss = xyes; then
   789             SUMMARY_audio="${SUMMARY_audio} oss"
   790             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   791             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   792             have_audio=yes
   793 
   794             # We may need to link with ossaudio emulation library
   795             case "$host" in
   796                 *-*-openbsd*|*-*-netbsd*)
   797                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   798             esac
   799         fi
   800     fi
   801 }
   802 
   803 dnl See if the ALSA audio interface is supported
   804 CheckALSA()
   805 {
   806     AC_ARG_ENABLE(alsa,
   807 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   808                   , enable_alsa=yes)
   809     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   810         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   811         # Restore all flags from before the ALSA detection runs
   812         CFLAGS="$alsa_save_CFLAGS"
   813         LDFLAGS="$alsa_save_LDFLAGS"
   814         LIBS="$alsa_save_LIBS"
   815         if test x$have_alsa = xyes; then
   816             AC_ARG_ENABLE(alsa-shared,
   817 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   818                           , enable_alsa_shared=yes)
   819             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   820 
   821             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   822             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   823             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   824             if test x$have_loadso != xyes && \
   825                test x$enable_alsa_shared = xyes; then
   826                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   827             fi
   828             if test x$have_loadso = xyes && \
   829                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   830                 echo "-- dynamic libasound -> $alsa_lib"
   831                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   832                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   833             else
   834                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   835                 SUMMARY_audio="${SUMMARY_audio} alsa"
   836             fi
   837             have_audio=yes
   838         fi
   839     fi
   840 }
   841 
   842 dnl Find JACK Audio
   843 CheckJACK()
   844 {
   845     AC_ARG_ENABLE(jack,
   846 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   847                   , enable_jack=yes)
   848     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   849         audio_jack=no
   850 
   851         JACK_REQUIRED_VERSION=0.125
   852 
   853         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   854         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   855         if test x$PKG_CONFIG != xno; then
   856         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   857                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   858                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   859                 audio_jack=yes
   860             fi
   861         fi
   862         AC_MSG_RESULT($audio_jack)
   863 
   864         if test x$audio_jack = xyes; then
   865             AC_ARG_ENABLE(jack-shared,
   866 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   867                           , enable_jack_shared=yes)
   868             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   869 
   870             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   871             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   872             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   873             if test x$have_loadso != xyes && \
   874                test x$enable_jack_shared = xyes; then
   875                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   876             fi
   877             if test x$have_loadso = xyes && \
   878                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   879                 echo "-- dynamic libjack -> $jack_lib"
   880                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   881                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   882 
   883                 case "$host" in
   884                     # On Solaris, jack must be linked deferred explicitly
   885                     # to prevent undefined symbol failures.
   886                     *-*-solaris*)
   887                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   888                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   889                 esac
   890             else
   891                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   892                 SUMMARY_audio="${SUMMARY_audio} jack"
   893             fi
   894             have_audio=yes
   895         fi
   896     fi
   897 }
   898 
   899 dnl Find the ESD includes and libraries
   900 CheckESD()
   901 {
   902     AC_ARG_ENABLE(esd,
   903 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   904                   , enable_esd=yes)
   905     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   906         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   907         if test x$have_esd = xyes; then
   908             AC_ARG_ENABLE(esd-shared,
   909 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   910                           , enable_esd_shared=yes)
   911             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   912 
   913             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   914             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   915             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   916             if test x$have_loadso != xyes && \
   917                test x$enable_esd_shared = xyes; then
   918                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   919             fi
   920             if test x$have_loadso = xyes && \
   921                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   922                 echo "-- dynamic libesd -> $esd_lib"
   923                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   924                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   925             else
   926                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   927                 SUMMARY_audio="${SUMMARY_audio} esd"
   928             fi
   929             have_audio=yes
   930         fi
   931     fi
   932 }
   933 
   934 dnl Find PulseAudio
   935 CheckPulseAudio()
   936 {
   937     AC_ARG_ENABLE(pulseaudio,
   938 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   939                   , enable_pulseaudio=yes)
   940     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   941         audio_pulseaudio=no
   942 
   943         PULSEAUDIO_REQUIRED_VERSION=0.9
   944 
   945         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   946         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   947         if test x$PKG_CONFIG != xno; then
   948         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   949                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   950                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   951                 audio_pulseaudio=yes
   952             fi
   953         fi
   954         AC_MSG_RESULT($audio_pulseaudio)
   955 
   956         if test x$audio_pulseaudio = xyes; then
   957             AC_ARG_ENABLE(pulseaudio-shared,
   958 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   959                           , enable_pulseaudio_shared=yes)
   960             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   961 
   962             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   963             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   964             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   965             if test x$have_loadso != xyes && \
   966                test x$enable_pulseaudio_shared = xyes; then
   967                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   968             fi
   969             if test x$have_loadso = xyes && \
   970                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   971                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   972                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   973                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   974 
   975                 case "$host" in
   976                     # On Solaris, pulseaudio must be linked deferred explicitly
   977                     # to prevent undefined symbol failures.
   978                     *-*-solaris*)
   979                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   980                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   981                 esac
   982             else
   983                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   984                 SUMMARY_audio="${SUMMARY_audio} pulse"
   985             fi
   986             have_audio=yes
   987         fi
   988     fi
   989 }
   990 
   991 CheckARTSC()
   992 {
   993     AC_ARG_ENABLE(arts,
   994 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   995                   , enable_arts=yes)
   996     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   997         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   998         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   999             : # arts isn't installed
  1000         else
  1001             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1002             ARTS_LIBS=`$ARTSCONFIG --libs`
  1003             AC_MSG_CHECKING(for aRts development environment)
  1004             audio_arts=no
  1005             save_CFLAGS="$CFLAGS"
  1006             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1007             AC_TRY_COMPILE([
  1008              #include <artsc.h>
  1009             ],[
  1010              arts_stream_t stream;
  1011             ],[
  1012             audio_arts=yes
  1013             ])
  1014             CFLAGS="$save_CFLAGS"
  1015             AC_MSG_RESULT($audio_arts)
  1016             if test x$audio_arts = xyes; then
  1017                 AC_ARG_ENABLE(arts-shared,
  1018 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1019                               , enable_arts_shared=yes)
  1020                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1021 
  1022                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1023                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1024                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1025                 if test x$have_loadso != xyes && \
  1026                    test x$enable_arts_shared = xyes; then
  1027                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1028                 fi
  1029                 if test x$have_loadso = xyes && \
  1030                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1031                     echo "-- dynamic libartsc -> $arts_lib"
  1032                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1033                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1034                 else
  1035                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1036                     SUMMARY_audio="${SUMMARY_audio} arts"
  1037                 fi
  1038                 have_audio=yes
  1039             fi
  1040         fi
  1041     fi
  1042 }
  1043 
  1044 dnl See if the NAS audio interface is supported
  1045 CheckNAS()
  1046 {
  1047     AC_ARG_ENABLE(nas,
  1048 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1049                   , enable_nas=yes)
  1050     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1051         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1052         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1053 
  1054         AC_MSG_CHECKING(for NAS audio support)
  1055         have_nas=no
  1056 
  1057         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1058             have_nas=yes
  1059             NAS_LIBS="-laudio"
  1060 
  1061         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1062             have_nas=yes
  1063             NAS_CFLAGS="-I/usr/X11R6/include/"
  1064             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1065 
  1066         fi
  1067 
  1068         AC_MSG_RESULT($have_nas)
  1069 
  1070         if test x$have_nas = xyes; then
  1071             AC_ARG_ENABLE(nas-shared,
  1072 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1073                           , enable_nas_shared=yes)
  1074             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1075 
  1076             if test x$have_loadso != xyes && \
  1077                test x$enable_nas_shared = xyes; then
  1078                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1079             fi
  1080             if test x$have_loadso = xyes && \
  1081                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1082                 echo "-- dynamic libaudio -> $nas_lib"
  1083                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1084                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1085             else
  1086                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1087                 SUMMARY_audio="${SUMMARY_audio} nas"
  1088             fi
  1089 
  1090             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1091             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1092             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1093             have_audio=yes
  1094         fi
  1095     fi
  1096 }
  1097 
  1098 dnl See if the sndio audio interface is supported
  1099 CheckSNDIO()
  1100 {
  1101     AC_ARG_ENABLE(sndio,
  1102 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1103                   , enable_sndio=yes)
  1104     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1105         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1106         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1107 
  1108         AC_MSG_CHECKING(for sndio audio support)
  1109         have_sndio=no
  1110 
  1111         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1112             have_sndio=yes
  1113             SNDIO_LIBS="-lsndio"
  1114         fi
  1115 
  1116         AC_MSG_RESULT($have_sndio)
  1117 
  1118         if test x$have_sndio = xyes; then
  1119             AC_ARG_ENABLE(sndio-shared,
  1120 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1121                           , enable_sndio_shared=yes)
  1122             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1123 
  1124             if test x$have_loadso != xyes && \
  1125                test x$enable_sndio_shared = xyes; then
  1126                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1127             fi
  1128             if test x$have_loadso = xyes && \
  1129                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1130                 echo "-- dynamic libsndio -> $sndio_lib"
  1131                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1132                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1133             else
  1134                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1135                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1136             fi
  1137 
  1138             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1139             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1140             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1141             have_audio=yes
  1142         fi
  1143     fi
  1144 }
  1145 
  1146 dnl Find FusionSound
  1147 CheckFusionSound()
  1148 {
  1149     AC_ARG_ENABLE(fusionsound,
  1150 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1151                   , enable_fusionsound=no)
  1152     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1153         fusionsound=no
  1154 
  1155         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1156 
  1157         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1158         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1159         if test x$PKG_CONFIG != xno; then
  1160             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1161                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1162                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1163                 fusionsound=yes
  1164             fi
  1165         fi
  1166         AC_MSG_RESULT($fusionsound)
  1167 
  1168         if test x$fusionsound = xyes; then
  1169             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1170             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1171             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1172             
  1173             AC_ARG_ENABLE(fusionsound-shared,
  1174 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1175                           , enable_fusionsound_shared=yes)
  1176             fusionsound_shared=no
  1177             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1178             if test x$have_loadso != xyes && \
  1179                test x$enable_fusionsound_shared = xyes; then
  1180                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1181             fi
  1182             if test x$have_loadso = xyes && \
  1183                test x$enable_fusionsound_shared = xyes; then
  1184                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1185                 fusionsound_shared=yes
  1186                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1187             else
  1188                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1189                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1190             fi
  1191             AC_MSG_RESULT($fusionsound_shared)
  1192             
  1193             have_audio=yes
  1194         fi
  1195     fi
  1196 }
  1197 
  1198 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1199 CheckDiskAudio()
  1200 {
  1201     AC_ARG_ENABLE(diskaudio,
  1202 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1203                   , enable_diskaudio=yes)
  1204     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1205         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1206         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1207         SUMMARY_audio="${SUMMARY_audio} disk"
  1208     fi
  1209 }
  1210 
  1211 dnl rcg03142006 See if the user wants the dummy audio driver...
  1212 CheckDummyAudio()
  1213 {
  1214     AC_ARG_ENABLE(dummyaudio,
  1215 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1216                   , enable_dummyaudio=yes)
  1217     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1218         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1219         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1220         SUMMARY_audio="${SUMMARY_audio} dummy"
  1221     fi
  1222 }
  1223 
  1224 dnl See if libsamplerate is available
  1225 CheckLibSampleRate()
  1226 {
  1227     AC_ARG_ENABLE(libsamplerate,
  1228 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1229                   , enable_libsamplerate=yes)
  1230     if test x$enable_libsamplerate = xyes; then
  1231         AC_CHECK_HEADER(samplerate.h,
  1232                         have_samplerate_h_hdr=yes,
  1233                         have_samplerate_h_hdr=no)
  1234         if test x$have_samplerate_h_hdr = xyes; then
  1235             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1236 
  1237             AC_ARG_ENABLE(libsamplerate-shared,
  1238 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1239                           , enable_libsamplerate_shared=yes)
  1240 
  1241             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1242 
  1243             if test x$have_loadso != xyes && \
  1244                test x$enable_libsamplerate_shared = xyes; then
  1245                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1246             fi
  1247             if test x$have_loadso = xyes && \
  1248                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1249                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1250                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1251             else
  1252                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1253             fi
  1254         fi
  1255     fi
  1256 }
  1257 
  1258 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1259 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1260 CheckVisibilityHidden()
  1261 {
  1262     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1263     have_gcc_fvisibility=no
  1264 
  1265     visibility_CFLAGS="-fvisibility=hidden"
  1266     save_CFLAGS="$CFLAGS"
  1267     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1268     AC_TRY_COMPILE([
  1269     #if !defined(__GNUC__) || __GNUC__ < 4
  1270     #error SDL only uses visibility attributes in GCC 4 or newer
  1271     #endif
  1272     ],[
  1273     ],[
  1274     have_gcc_fvisibility=yes
  1275     ])
  1276     AC_MSG_RESULT($have_gcc_fvisibility)
  1277     CFLAGS="$save_CFLAGS"
  1278 
  1279     if test x$have_gcc_fvisibility = xyes; then
  1280         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1281     fi
  1282 }
  1283 
  1284 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1285 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1286 CheckStackBoundary()
  1287 {
  1288     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1289     have_gcc_preferred_stack_boundary=no
  1290 
  1291     save_CFLAGS="$CFLAGS"
  1292     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1293     AC_TRY_COMPILE([
  1294     int x = 0;
  1295     ],[
  1296     ],[
  1297     have_gcc_preferred_stack_boundary=yes
  1298     ])
  1299     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1300     CFLAGS="$save_CFLAGS"
  1301 
  1302     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1303         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1304     fi
  1305 }
  1306 
  1307 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1308 dnl  This lets us catch things that would fail on a C89 compiler when using
  1309 dnl  a modern GCC.
  1310 CheckDeclarationAfterStatement()
  1311 {
  1312     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1313     have_gcc_declaration_after_statement=no
  1314 
  1315     save_CFLAGS="$CFLAGS"
  1316     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1317     AC_TRY_COMPILE([
  1318     int x = 0;
  1319     ],[
  1320     ],[
  1321     have_gcc_declaration_after_statement=yes
  1322     ])
  1323     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1324     CFLAGS="$save_CFLAGS"
  1325 
  1326     if test x$have_gcc_declaration_after_statement = xyes; then
  1327         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1328     fi
  1329 }
  1330 
  1331 dnl See if GCC's -Wall is supported.
  1332 CheckWarnAll()
  1333 {
  1334     AC_MSG_CHECKING(for GCC -Wall option)
  1335     have_gcc_Wall=no
  1336 
  1337     save_CFLAGS="$CFLAGS"
  1338     CFLAGS="$save_CFLAGS -Wall"
  1339     AC_TRY_COMPILE([
  1340     int x = 0;
  1341     ],[
  1342     ],[
  1343     have_gcc_Wall=yes
  1344     ])
  1345     AC_MSG_RESULT($have_gcc_Wall)
  1346     CFLAGS="$save_CFLAGS"
  1347 
  1348     if test x$have_gcc_Wall = xyes; then
  1349         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1350 
  1351         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1352         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1353         need_gcc_Wno_multichar=no
  1354         case "$host" in
  1355             *-*-haiku*)
  1356                 need_gcc_Wno_multichar=yes
  1357                 ;;
  1358         esac
  1359         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1360         if test x$need_gcc_Wno_multichar = xyes; then
  1361             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1362         fi
  1363     fi
  1364 }
  1365 
  1366 dnl Check for Wayland
  1367 CheckWayland()
  1368 {
  1369     AC_ARG_ENABLE(video-wayland,
  1370 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1371                   ,enable_video_wayland=yes)
  1372 
  1373     AC_ARG_ENABLE(video-wayland-qt-touch,
  1374 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1375                   ,enable_video_wayland_qt_touch=yes)
  1376 
  1377     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1378         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1379         AC_MSG_CHECKING(for Wayland support)
  1380         video_wayland=no
  1381         if  test x$PKG_CONFIG != xno && \
  1382             test x$video_opengl_egl = xyes && \
  1383             test x$video_opengles_v2 = xyes; then
  1384             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1385                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1386                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1387                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1388                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1389                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1390                 video_wayland=yes
  1391             fi
  1392         fi
  1393         AC_MSG_RESULT($video_wayland)
  1394 
  1395         if test x$video_wayland = xyes; then
  1396             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1397             if test x$enable_video_wayland_qt_touch = xyes; then
  1398                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1399             fi
  1400 
  1401             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1"
  1402 
  1403             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1404             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1405             AC_ARG_ENABLE(wayland-shared,
  1406 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1407                           , enable_wayland_shared=maybe)
  1408 
  1409             dnl FIXME: Do BSD and OS X need special cases?
  1410             case "$host" in
  1411                 *)
  1412                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1413                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1414                     if test x$wayland_egl_lib = x; then
  1415                         dnl This works in Ubuntu 13.10, maybe others
  1416                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1417                     fi
  1418                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1419                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1420                     ;;
  1421             esac
  1422 
  1423             if test x$enable_wayland_shared = xmaybe; then
  1424                 enable_wayland_shared=yes
  1425             fi
  1426             if test x$have_loadso != xyes && \
  1427                test x$enable_wayland_shared = xyes; then
  1428                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1429                 enable_wayland_shared=no
  1430             fi
  1431             if test x$have_loadso = xyes && \
  1432                test x$enable_wayland_shared = xyes && \
  1433                test x$wayland_client_lib != x && \
  1434                test x$wayland_egl_lib != x && \
  1435                test x$wayland_cursor_lib != x && \
  1436                test x$xkbcommon_lib != x; then
  1437                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1438                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1439                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1440                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1441                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1442                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1443                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1444                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1445                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1446             else
  1447                 enable_wayland_shared=no
  1448                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1449                 SUMMARY_video="${SUMMARY_video} wayland"
  1450             fi
  1451             have_video=yes
  1452         fi
  1453     fi
  1454 }
  1455 
  1456 dnl Check for Mir
  1457 CheckMir()
  1458 {
  1459     AC_ARG_ENABLE(video-mir,
  1460 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1461                   ,enable_video_mir=yes)
  1462 
  1463     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1464         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1465         AC_MSG_CHECKING(for Mir support)
  1466         video_mir=no
  1467         if test x$PKG_CONFIG != xno; then
  1468             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1469                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1470                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1471                 save_CFLAGS="$CFLAGS"
  1472                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1473 
  1474                 dnl This will disable Mir if >= v0.26 is not available
  1475                 AC_TRY_COMPILE([
  1476                 #include <mir_toolkit/mir_client_library.h>
  1477                 ],[
  1478                     MirWindowAttrib attrib = mir_window_attrib_state
  1479                 ],[
  1480                 video_mir=yes
  1481                 ])
  1482                 CFLAGS="$save_CFLAGS"
  1483             fi
  1484         fi
  1485         AC_MSG_RESULT($video_mir)
  1486 
  1487         if test x$video_mir = xyes; then
  1488             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1489             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1490             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1491             AC_ARG_ENABLE(mir-shared,
  1492 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1493                           , enable_mir_shared=maybe)
  1494 
  1495             dnl FIXME: Do BSD and OS X need special cases?
  1496             case "$host" in
  1497                 *)
  1498                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1499                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1500                     ;;
  1501             esac
  1502 
  1503             if test x$enable_mir_shared = xmaybe; then
  1504                 enable_mir_shared=yes
  1505             fi
  1506             if test x$have_loadso != xyes && \
  1507                test x$enable_mir_shared = xyes; then
  1508                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1509                 enable_mir_shared=no
  1510             fi
  1511             if test x$have_loadso = xyes && \
  1512                test x$enable_mir_shared = xyes && \
  1513                test x$mirclient_lib != x && \
  1514                test x$xkbcommon_lib != x; then
  1515                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1516                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1517                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1518                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1519                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1520             else
  1521                 enable_mir_shared=no
  1522                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1523                 SUMMARY_video="${SUMMARY_video} mir"
  1524             fi
  1525             have_video=yes
  1526         fi
  1527     fi
  1528 }
  1529 
  1530 dnl Check for Native Client stuff
  1531 CheckNativeClient()
  1532 {
  1533         AC_TRY_COMPILE([
  1534           #if !defined(__native_client__)
  1535           #error "NO NACL"
  1536           #endif
  1537         ],[
  1538         ],[
  1539         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1540         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1541         AC_DEFINE(HAVE_POW, 1, [ ])
  1542         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1543         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1544         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1545 
  1546         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1547 
  1548         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1549         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1550         SUMMARY_audio="${SUMMARY_audio} nacl"
  1551         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1552         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1553         ])
  1554 }
  1555 
  1556 
  1557 dnl Find the X11 include and library directories
  1558 CheckX11()
  1559 {
  1560 
  1561 
  1562     AC_ARG_ENABLE(video-x11,
  1563 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1564                   , enable_video_x11=yes)
  1565     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1566         case "$host" in
  1567             *-*-darwin*)
  1568                 # This isn't necessary for X11, but fixes GLX detection
  1569                 if test "x$x_includes" = xNONE && \
  1570                    test "x$x_libraries" = xNONE && \
  1571                    test -d /usr/X11R6/include && \
  1572                    test -d /usr/X11R6/lib; then
  1573                     x_includes="/usr/X11R6/include"
  1574                     x_libraries="/usr/X11R6/lib"
  1575                 fi
  1576                 ;;
  1577         esac
  1578         AC_PATH_X
  1579         AC_PATH_XTRA
  1580         if test x$have_x = xyes; then
  1581             AC_ARG_ENABLE(x11-shared,
  1582 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1583                           , enable_x11_shared=maybe)
  1584 
  1585             case "$host" in
  1586                 *-*-darwin*)
  1587                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1588                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1589                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1590                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1591                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1592                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1593                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1594                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1595                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1596                     ;;
  1597                 *-*-openbsd*)
  1598                     x11_lib='libX11.so'
  1599                     x11ext_lib='libXext.so'
  1600                     xcursor_lib='libXcursor.so'
  1601                     xinerama_lib='libXinerama.so'
  1602                     xinput_lib='libXi.so'
  1603                     xrandr_lib='libXrandr.so'
  1604                     xrender_lib='libXrender.so'
  1605                     xss_lib='libXss.so'
  1606                     xvidmode_lib='libXxf86vm.so'
  1607                     ;;
  1608                 *)
  1609                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1610                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1611                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1612                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1613                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1614                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1615                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1616                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1617                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1618                     ;;
  1619             esac
  1620 
  1621             if test x$ac_cv_func_shmat != xyes; then
  1622                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1623             fi
  1624             CFLAGS="$CFLAGS $X_CFLAGS"
  1625             LDFLAGS="$LDFLAGS $X_LIBS"
  1626 
  1627             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1628                             have_xext_h_hdr=yes,
  1629                             have_xext_h_hdr=no,
  1630                             [#include <X11/Xlib.h>
  1631                              #include <X11/Xproto.h>
  1632                             ])
  1633             if test x$have_xext_h_hdr != xyes; then
  1634                AC_MSG_ERROR([
  1635 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1636                ])
  1637             fi
  1638 
  1639             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1640             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1641             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1642 
  1643             # Needed so SDL applications can include SDL_syswm.h
  1644             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1645 
  1646             if test x$enable_x11_shared = xmaybe; then
  1647                 enable_x11_shared=yes
  1648             fi
  1649             if test x$have_loadso != xyes && \
  1650                test x$enable_x11_shared = xyes; then
  1651                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1652                 enable_x11_shared=no
  1653             fi
  1654             if test x$have_loadso = xyes && \
  1655                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1656                 echo "-- dynamic libX11 -> $x11_lib"
  1657                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1658                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1659                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1660                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1661             else
  1662                 enable_x11_shared=no
  1663                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1664                 SUMMARY_video="${SUMMARY_video} x11"
  1665             fi
  1666             have_video=yes
  1667 
  1668             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1669             have_const_param_XextAddDisplay=no
  1670             AC_TRY_COMPILE([
  1671               #include <X11/Xlib.h>
  1672               #include <X11/Xproto.h>
  1673               #include <X11/extensions/Xext.h>
  1674               #include <X11/extensions/extutil.h>
  1675               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1676             ],[
  1677             ],[
  1678             have_const_param_XextAddDisplay=yes
  1679             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1680             ])
  1681             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1682 
  1683             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1684             AC_MSG_CHECKING([for XGenericEvent])
  1685             have_XGenericEvent=no
  1686             AC_TRY_COMPILE([
  1687               	#include <X11/Xlib.h>
  1688             ],[
  1689 Display *display;
  1690 XEvent event;
  1691 XGenericEventCookie *cookie = &event.xcookie;
  1692 XNextEvent(display, &event);
  1693 XGetEventData(display, cookie);
  1694 XFreeEventData(display, cookie);
  1695             ],[
  1696                 have_XGenericEvent=yes
  1697                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1698             ])
  1699             AC_MSG_RESULT($have_XGenericEvent)
  1700 
  1701             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1702 
  1703             AC_ARG_ENABLE(video-x11-xcursor,
  1704 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1705                             , enable_video_x11_xcursor=yes)
  1706             if test x$enable_video_x11_xcursor = xyes; then
  1707                 definitely_enable_video_x11_xcursor=no
  1708                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1709                                 have_xcursor_h_hdr=yes,
  1710                                 have_xcursor_h_hdr=no,
  1711                                 [#include <X11/Xlib.h>
  1712                                 ])
  1713                 if test x$have_xcursor_h_hdr = xyes; then
  1714                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1715                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1716                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1717                         definitely_enable_video_x11_xcursor=yes
  1718                     else
  1719                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1720                         if test x$have_xcursor_lib = xyes ; then
  1721                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1722                             definitely_enable_video_x11_xcursor=yes
  1723                         fi
  1724                     fi
  1725                 fi
  1726             fi
  1727             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1728                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1729                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1730             fi
  1731             AC_ARG_ENABLE(video-x11-xdbe,
  1732 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1733                             , enable_video_x11_xdbe=yes)
  1734             if test x$enable_video_x11_xdbe = xyes; then
  1735                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1736                                 have_dbe_h_hdr=yes,
  1737                                 have_dbe_h_hdr=no,
  1738                                 [#include <X11/Xlib.h>
  1739                                 ])
  1740                 if test x$have_dbe_h_hdr = xyes; then
  1741                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1742                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1743                 fi
  1744             fi
  1745             AC_ARG_ENABLE(video-x11-xinerama,
  1746 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1747                             , enable_video_x11_xinerama=yes)
  1748             if test x$enable_video_x11_xinerama = xyes; then
  1749                 definitely_enable_video_x11_xinerama=no
  1750                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1751                                 have_xinerama_h_hdr=yes,
  1752                                 have_xinerama_h_hdr=no,
  1753                                 [#include <X11/Xlib.h>
  1754                                 ])
  1755                 if test x$have_xinerama_h_hdr = xyes; then
  1756                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1757                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1758                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1759                         definitely_enable_video_x11_xinerama=yes
  1760                     else
  1761                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1762                         if test x$have_xinerama_lib = xyes ; then
  1763                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1764                             definitely_enable_video_x11_xinerama=yes
  1765                         fi
  1766                     fi
  1767                 fi
  1768             fi
  1769             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1770                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1771                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1772             fi
  1773             AC_ARG_ENABLE(video-x11-xinput,
  1774 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1775                             , enable_video_x11_xinput=yes)
  1776             if test x$enable_video_x11_xinput = xyes; then
  1777                 definitely_enable_video_x11_xinput=no
  1778                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1779                                 have_xinput_h_hdr=yes,
  1780                                 have_xinput_h_hdr=no,
  1781                                 [#include <X11/Xlib.h>
  1782                                 ])
  1783                 if test x$have_xinput_h_hdr = xyes; then
  1784                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1785                         echo "-- dynamic libXi -> $xinput_lib"
  1786                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1787                         definitely_enable_video_x11_xinput=yes
  1788                     else
  1789                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1790                         if test x$have_xinput_lib = xyes ; then
  1791                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1792                             definitely_enable_video_x11_xinput=yes
  1793                         fi
  1794                     fi
  1795                 fi
  1796             fi
  1797             if test x$definitely_enable_video_x11_xinput = xyes; then
  1798                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1799                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1800                 AC_MSG_CHECKING(for xinput2 multitouch)
  1801             	have_xinput2_multitouch=no
  1802             	AC_TRY_COMPILE([
  1803               		#include <X11/Xlib.h>
  1804              		#include <X11/Xproto.h>
  1805 			#include <X11/extensions/XInput2.h>
  1806             	],[
  1807 int event_type = XI_TouchBegin;
  1808 XITouchClassInfo *t;
  1809             	],[
  1810             	have_xinput2_multitouch=yes
  1811             	AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1812                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1813             	])
  1814             	AC_MSG_RESULT($have_xinput2_multitouch)
  1815             fi
  1816             AC_ARG_ENABLE(video-x11-xrandr,
  1817 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1818                             , enable_video_x11_xrandr=yes)
  1819             if test x$enable_video_x11_xrandr = xyes; then
  1820                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1821                 definitely_enable_video_x11_xrandr=no
  1822                 have_xrandr_h_hdr=no
  1823                 AC_TRY_COMPILE([
  1824                 #include <X11/Xlib.h>
  1825                 #include <X11/extensions/Xrandr.h>
  1826                 ],[
  1827                 XRRScreenResources *res = NULL;
  1828                 ],[
  1829                 have_xrandr_h_hdr=yes
  1830                 ])
  1831                 if test x$have_xrandr_h_hdr = xyes; then
  1832                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1833                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1834                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1835                         definitely_enable_video_x11_xrandr=yes
  1836                     else
  1837                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1838                         if test x$have_xrandr_lib = xyes ; then
  1839                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1840                             definitely_enable_video_x11_xrandr=yes
  1841                         fi
  1842                     fi
  1843                 fi
  1844             fi
  1845             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1846                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1847                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1848             fi
  1849             AC_ARG_ENABLE(video-x11-scrnsaver,
  1850 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1851                             , enable_video_x11_scrnsaver=yes)
  1852             if test x$enable_video_x11_scrnsaver = xyes; then
  1853                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1854                                 have_scrnsaver_h_hdr=yes,
  1855                                 have_scrnsaver_h_hdr=no,
  1856                                 [#include <X11/Xlib.h>
  1857                                 ])
  1858                 if test x$have_scrnsaver_h_hdr = xyes; then
  1859                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1860                         echo "-- dynamic libXss -> $xss_lib"
  1861                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1862                         definitely_enable_video_x11_scrnsaver=yes
  1863                     else
  1864                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1865                         if test x$have_xss_lib = xyes ; then
  1866                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1867                             definitely_enable_video_x11_scrnsaver=yes
  1868                         fi
  1869                     fi
  1870                 fi
  1871             fi
  1872             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1873                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1874                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1875             fi
  1876             AC_ARG_ENABLE(video-x11-xshape,
  1877 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1878                             , enable_video_x11_xshape=yes)
  1879             if test x$enable_video_x11_xshape = xyes; then
  1880                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1881                                 have_shape_h_hdr=yes,
  1882                                 have_shape_h_hdr=no,
  1883                                 [#include <X11/Xlib.h>
  1884                                 ])
  1885                 if test x$have_shape_h_hdr = xyes; then
  1886                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1887                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1888                 fi
  1889             fi
  1890             AC_ARG_ENABLE(video-x11-vm,
  1891 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1892                             , enable_video_x11_vm=yes)
  1893             if test x$enable_video_x11_vm = xyes; then
  1894                 definitely_enable_video_x11_vm=no
  1895                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1896                                 have_vm_h_hdr=yes,
  1897                                 have_vm_h_hdr=no,
  1898                                 [#include <X11/Xlib.h>
  1899                                 ])
  1900                 if test x$have_vm_h_hdr = xyes; then
  1901                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1902                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1903                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1904                         definitely_enable_video_x11_vm=yes
  1905                     else
  1906                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1907                         if test x$have_vm_lib = xyes ; then
  1908                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1909                             definitely_enable_video_x11_vm=yes
  1910                         fi
  1911                     fi
  1912                 fi
  1913             fi
  1914             if test x$definitely_enable_video_x11_vm = xyes; then
  1915                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1916                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1917             fi
  1918         fi
  1919     fi
  1920 }
  1921 
  1922 dnl Set up the Vivante video driver if enabled
  1923 CheckVivanteVideo()
  1924 {
  1925     AC_ARG_ENABLE(video-vivante,
  1926 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1927                   , enable_video_vivante=yes)
  1928     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1929         AC_MSG_CHECKING(for Vivante VDK API)
  1930         have_vivante_vdk=no
  1931         AC_TRY_COMPILE([
  1932           #define LINUX
  1933           #define EGL_API_FB
  1934           #include <gc_vdk.h>
  1935         ],[
  1936         ],[
  1937         have_vivante_vdk=yes
  1938         ])
  1939         AC_MSG_RESULT($have_vivante_vdk)
  1940 
  1941         AC_MSG_CHECKING(for Vivante FB API)
  1942         have_vivante_egl=no
  1943         AC_TRY_COMPILE([
  1944           #define LINUX
  1945           #define EGL_API_FB
  1946           #include <EGL/eglvivante.h>
  1947         ],[
  1948         ],[
  1949         have_vivante_egl=yes
  1950         ])
  1951         AC_MSG_RESULT($have_vivante_egl)
  1952 
  1953         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  1954             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  1955             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  1956             if test x$have_vivante_vdk = xyes; then
  1957                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  1958                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  1959             fi
  1960             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  1961             SUMMARY_video="${SUMMARY_video} vivante"
  1962             have_video=yes
  1963         fi
  1964     fi
  1965 }
  1966 
  1967 dnl Set up the Haiku video driver if enabled
  1968 CheckHaikuVideo()
  1969 {
  1970     if test x$enable_video = xyes; then
  1971         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1972         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1973         have_video=yes
  1974         SUMMARY_video="${SUMMARY_video} haiku"
  1975     fi
  1976 }
  1977 
  1978 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1979 CheckCOCOA()
  1980 {
  1981     AC_ARG_ENABLE(video-cocoa,
  1982 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1983                   , enable_video_cocoa=yes)
  1984     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1985         save_CFLAGS="$CFLAGS"
  1986         dnl work around that we don't have Objective-C support in autoconf
  1987         CFLAGS="$CFLAGS -x objective-c"
  1988         AC_MSG_CHECKING(for Cocoa framework)
  1989         have_cocoa=no
  1990         AC_TRY_COMPILE([
  1991           #import <Cocoa/Cocoa.h>
  1992         ],[
  1993         ],[
  1994         have_cocoa=yes
  1995         ])
  1996         AC_MSG_RESULT($have_cocoa)
  1997         CFLAGS="$save_CFLAGS"
  1998         if test x$have_cocoa = xyes; then
  1999             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2000             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2001             SUMMARY_video="${SUMMARY_video} cocoa"
  2002             have_video=yes
  2003         fi
  2004     fi
  2005 }
  2006 
  2007 dnl Find DirectFB
  2008 CheckDirectFB()
  2009 {
  2010     AC_ARG_ENABLE(video-directfb,
  2011 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2012                   , enable_video_directfb=no)
  2013     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2014         video_directfb=no
  2015 
  2016         DIRECTFB_REQUIRED_VERSION=1.0.0
  2017         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2018         if test x$DIRECTFBCONFIG = xno; then
  2019             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2020             if test x$PKG_CONFIG != xno; then
  2021                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2022                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2023                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2024                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2025                     video_directfb=yes
  2026                 fi
  2027             fi
  2028         else
  2029             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2030             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2031             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2032             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2033             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2034                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2035                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2036                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2037                 video_directfb=yes
  2038             fi
  2039         fi
  2040         if test x$video_directfb = xyes; then
  2041             # SuSE 11.1 installs directfb-config without directfb-devel
  2042             save_CPPFLAGS="$CPPFLAGS"
  2043             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2044             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2045             CPPFLAGS="$save_CPPFLAGS"
  2046             video_directfb=$have_directfb_hdr
  2047         fi
  2048         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2049         AC_MSG_RESULT($video_directfb)
  2050 
  2051         if test x$video_directfb = xyes; then
  2052             AC_ARG_ENABLE(directfb-shared,
  2053 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2054                               , enable_directfb_shared=yes)
  2055 
  2056             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2057             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  2058             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2059             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2060 
  2061             AC_MSG_CHECKING(for directfb dynamic loading support)
  2062             directfb_shared=no
  2063             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2064             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2065 AC_MSG_WARN("directfb $directfb_lib")
  2066             if test x$have_loadso != xyes && \
  2067                test x$enable_directfb_shared = xyes; then
  2068                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2069             fi
  2070             if test x$have_loadso = xyes && \
  2071                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2072                 directfb_shared=yes
  2073                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2074                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2075                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2076             else
  2077                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2078                 SUMMARY_video="${SUMMARY_video} directfb"
  2079             fi
  2080             AC_MSG_RESULT($directfb_shared)
  2081             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2082             have_video=yes
  2083         fi
  2084     fi
  2085 }
  2086 
  2087 dnl Find KMSDRM
  2088 CheckKMSDRM()
  2089 {
  2090     AC_ARG_ENABLE(video-kmsdrm,
  2091 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2092                   , enable_video_kmsdrm=no)
  2093 
  2094     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2095         video_kmsdrm=no
  2096         libdrm_avail=no
  2097         libgbm_avail=no
  2098 
  2099         LIBDRM_REQUIRED_VERSION=2.4.46
  2100         LIBGBM_REQUIRED_VERSION=9.0.0
  2101 
  2102         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2103         if test x$PKG_CONFIG != xno; then
  2104             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2105                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2106                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2107                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2108                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2109                     libdrm_avail=yes
  2110                 fi
  2111                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2112                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2113                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2114                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2115                     libgbm_avail=yes
  2116                 fi
  2117                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2118                     video_kmsdrm=yes
  2119                 fi
  2120  
  2121                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2122                 AC_MSG_RESULT($libdrm_avail)
  2123                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2124                 AC_MSG_RESULT($libgbm_avail)
  2125 
  2126                 if test x$video_kmsdrm = xyes; then
  2127                     AC_ARG_ENABLE(kmsdrm-shared,
  2128 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2129                               , enable_kmsdrm_shared=yes)
  2130 
  2131                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2132                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2133                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2134 
  2135                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2136                     kmsdrm_shared=no
  2137                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2138                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2139                     if test x$have_loadso != xyes && \
  2140                        test x$enable_kmsdrm_shared = xyes; then
  2141                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2142                     fi
  2143                     if test x$have_loadso = xyes && \
  2144                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2145                         kmsdrm_shared=yes
  2146                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2147                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2148                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2149                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2150                     else
  2151                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2152                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2153                     fi
  2154                     AC_MSG_RESULT($kmsdrm_shared)
  2155                     have_video=yes
  2156                 fi
  2157             fi
  2158         fi
  2159     fi
  2160 }
  2161 
  2162 dnl rcg04172001 Set up the Null video driver.
  2163 CheckDummyVideo()
  2164 {
  2165     AC_ARG_ENABLE(video-dummy,
  2166 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2167                   , enable_video_dummy=yes)
  2168     if test x$enable_video_dummy = xyes; then
  2169         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2170         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2171         have_video=yes
  2172         SUMMARY_video="${SUMMARY_video} dummy"
  2173     fi
  2174 }
  2175 
  2176 dnl Set up the QNX video driver if enabled
  2177 CheckQNXVideo()
  2178 {
  2179     if test x$enable_video = xyes; then
  2180         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2181         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2182         have_video=yes
  2183         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2184         SUMMARY_video="${SUMMARY_video} qnx"
  2185     fi
  2186 }
  2187 
  2188 dnl Set up the QNX audio driver if enabled
  2189 CheckQNXAudio()
  2190 {
  2191     if test x$enable_audio = xyes; then
  2192         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2193         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2194         have_audio=yes
  2195         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2196         SUMMARY_audio="${SUMMARY_audio} qsa"
  2197     fi
  2198 }
  2199 
  2200 dnl Check to see if OpenGL support is desired
  2201 AC_ARG_ENABLE(video-opengl,
  2202 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2203               , enable_video_opengl=yes)
  2204 
  2205 dnl Find OpenGL
  2206 CheckOpenGLX11()
  2207 {
  2208     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2209         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2210         video_opengl=no
  2211         AC_TRY_COMPILE([
  2212          #include <GL/gl.h>
  2213          #include <GL/glx.h>
  2214         ],[
  2215         ],[
  2216         video_opengl=yes
  2217         ])
  2218         AC_MSG_RESULT($video_opengl)
  2219         if test x$video_opengl = xyes; then
  2220             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2221             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2222             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2223             SUMMARY_video="${SUMMARY_video} opengl"
  2224         fi
  2225     fi
  2226 }
  2227 
  2228 dnl Check to see if OpenGL ES support is desired
  2229 AC_ARG_ENABLE(video-opengles,
  2230 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2231               , enable_video_opengles=yes)
  2232 AC_ARG_ENABLE(video-opengles1,
  2233 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2234               , enable_video_opengles1=yes)
  2235 AC_ARG_ENABLE(video-opengles2,
  2236 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2237               , enable_video_opengles2=yes)
  2238 
  2239 dnl Find OpenGL ES
  2240 CheckOpenGLESX11()
  2241 {
  2242     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2243         AC_MSG_CHECKING(for EGL support)
  2244         video_opengl_egl=no
  2245         AC_TRY_COMPILE([
  2246           #define LINUX
  2247           #define EGL_API_FB
  2248           #include <EGL/egl.h>
  2249           #include <EGL/eglext.h>
  2250         ],[
  2251         ],[
  2252         video_opengl_egl=yes
  2253         ])
  2254         AC_MSG_RESULT($video_opengl_egl)
  2255         if test x$video_opengl_egl = xyes; then
  2256             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2257         fi
  2258             
  2259         if test x$enable_video_opengles1 = xyes; then
  2260             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2261             video_opengles_v1=no
  2262             AC_TRY_COMPILE([
  2263              #include <GLES/gl.h>
  2264              #include <GLES/glext.h>
  2265             ],[
  2266             ],[
  2267             video_opengles_v1=yes
  2268             ])
  2269             AC_MSG_RESULT($video_opengles_v1)
  2270             if test x$video_opengles_v1 = xyes; then
  2271                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2272                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2273                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2274             fi
  2275         fi
  2276         
  2277         if test x$enable_video_opengles2 = xyes; then
  2278             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2279             video_opengles_v2=no
  2280             AC_TRY_COMPILE([
  2281              #include <GLES2/gl2.h>
  2282              #include <GLES2/gl2ext.h>
  2283             ],[
  2284             ],[
  2285             video_opengles_v2=yes
  2286             ])
  2287             AC_MSG_RESULT($video_opengles_v2)
  2288             if test x$video_opengles_v2 = xyes; then
  2289                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2290                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2291                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2292             fi
  2293         fi
  2294     fi
  2295 }
  2296 
  2297 dnl Check for Windows OpenGL
  2298 CheckWINDOWSGL()
  2299 {
  2300     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2301         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2302         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2303         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2304         SUMMARY_video="${SUMMARY_video} opengl"
  2305     fi
  2306 }
  2307 
  2308 dnl Check for Windows OpenGL
  2309 CheckWINDOWSGLES()
  2310 {
  2311     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2312 
  2313         AC_MSG_CHECKING(for EGL support)
  2314         video_opengl_egl=no
  2315         AC_TRY_COMPILE([
  2316          #include <EGL/egl.h>
  2317         ],[
  2318         ],[
  2319         video_opengl_egl=yes
  2320         ])
  2321         AC_MSG_RESULT($video_opengl_egl)
  2322         if test x$video_opengl_egl = xyes; then
  2323             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2324             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2325             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2326         fi
  2327        
  2328         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2329         video_opengles_v2=no
  2330         AC_TRY_COMPILE([
  2331          #include <GLES2/gl2.h>
  2332          #include <GLES2/gl2ext.h>
  2333         ],[
  2334         ],[
  2335         video_opengles_v2=yes
  2336         ])
  2337         AC_MSG_RESULT($video_opengles_v2)
  2338         if test x$video_opengles_v2 = xyes; then
  2339             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2340             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2341             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2342             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2343         fi
  2344     fi
  2345 }
  2346 
  2347 dnl Check for Haiku OpenGL
  2348 CheckHaikuGL()
  2349 {
  2350     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2351         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2352         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2353         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2354         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2355         SUMMARY_video="${SUMMARY_video} opengl"
  2356     fi
  2357 }
  2358 
  2359 dnl Check for MacOS OpenGL
  2360 CheckMacGL()
  2361 {
  2362     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2363         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2364         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2365         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2366         SUMMARY_video="${SUMMARY_video} opengl"
  2367     fi
  2368 }
  2369 
  2370 CheckEmscriptenGLES()
  2371 {
  2372     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2373         AC_MSG_CHECKING(for EGL support)
  2374         video_opengl_egl=no
  2375         AC_TRY_COMPILE([
  2376          #include <EGL/egl.h>
  2377         ],[
  2378         ],[
  2379         video_opengl_egl=yes
  2380         ])
  2381         AC_MSG_RESULT($video_opengl_egl)
  2382         if test x$video_opengl_egl = xyes; then
  2383             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2384         fi
  2385 
  2386         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2387         video_opengles_v2=no
  2388         AC_TRY_COMPILE([
  2389          #include <GLES2/gl2.h>
  2390          #include <GLES2/gl2ext.h>
  2391         ],[
  2392         ],[
  2393         video_opengles_v2=yes
  2394         ])
  2395         AC_MSG_RESULT($video_opengles_v2)
  2396         if test x$video_opengles_v2 = xyes; then
  2397             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2398             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2399             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2400         fi
  2401     fi
  2402 }
  2403 
  2404 dnl Check to see if Vulkan surface support is desired
  2405 AC_ARG_ENABLE(video-vulkan,
  2406 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2407               , enable_video_vulkan=yes)
  2408 
  2409 dnl Find Vulkan Header
  2410 CheckVulkan()
  2411 {
  2412     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2413         case "$host" in
  2414             *-*-androideabi*)
  2415                 AC_TRY_COMPILE([
  2416                   #if defined(__ANDROID__) && defined(__ARM_EABI__) && !defined(__ARM_ARCH_7A__)
  2417                   #error Vulkan doesn't work on this configuration
  2418                   #endif
  2419                   int main()
  2420                   {
  2421                      return 0;
  2422                   }
  2423                 ],[
  2424                     enable_video_vulkan=no
  2425                 ],[
  2426                 ])
  2427                 ;;
  2428             *)
  2429                 ;;
  2430         esac
  2431         if test x$enable_video_vulkan = xno; then
  2432             # For reasons I am totally unable to see, I get an undefined macro error if
  2433             # I put this in the AC_TRY_COMPILE.
  2434             AC_MSG_WARN([Sorry, Vulkan does not work on this configuration.])
  2435         fi
  2436     fi
  2437     if test x$enable_video_vulkan = xyes; then
  2438         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2439         SUMMARY_video="${SUMMARY_video} vulkan"
  2440     fi
  2441 }
  2442 
  2443 dnl See if we can use the new unified event interface in Linux 2.4
  2444 CheckInputEvents()
  2445 {
  2446     dnl Check for Linux 2.4 unified input event interface support
  2447         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2448         use_input_events=no
  2449         AC_TRY_COMPILE([
  2450           #include <linux/input.h>
  2451         ],[
  2452           #ifndef EVIOCGNAME
  2453           #error EVIOCGNAME() ioctl not available
  2454           #endif
  2455         ],[
  2456         use_input_events=yes
  2457         ])
  2458         AC_MSG_RESULT($use_input_events)
  2459         if test x$use_input_events = xyes; then
  2460             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2461             SUMMARY_input="${SUMMARY_input} linuxev"
  2462         fi
  2463 }
  2464 
  2465 dnl See if we can use the kernel kd.h header
  2466 CheckInputKD()
  2467 {
  2468 
  2469     AC_MSG_CHECKING(for Linux kd.h)
  2470     use_input_kd=no
  2471     AC_TRY_COMPILE([
  2472       #include <linux/kd.h>
  2473       #include <linux/keyboard.h>
  2474     ],[
  2475         struct kbentry kbe;
  2476         kbe.kb_table = KG_CTRL;
  2477         ioctl(0, KDGKBENT, &kbe);
  2478     ],[
  2479     use_input_kd=yes
  2480     ])
  2481     AC_MSG_RESULT($use_input_kd)
  2482     if test x$use_input_kd = xyes; then
  2483         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2484         SUMMARY_input="${SUMMARY_input} linuxkd"
  2485     fi
  2486 }
  2487 
  2488 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2489 CheckLibUDev()
  2490 {
  2491     AC_ARG_ENABLE(libudev,
  2492 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2493                         , enable_libudev=yes)
  2494     if test x$enable_libudev = xyes; then
  2495         AC_CHECK_HEADER(libudev.h,
  2496                         have_libudev_h_hdr=yes,
  2497                         have_libudev_h_hdr=no)
  2498         if test x$have_libudev_h_hdr = xyes; then
  2499             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2500 
  2501             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2502             if test x$udev_lib != x; then
  2503                 echo "-- dynamic udev -> $udev_lib"
  2504                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2505             fi
  2506         fi
  2507     fi
  2508 }
  2509 
  2510 dnl See if the platform offers libdbus for various IPC techniques.
  2511 CheckDBus()
  2512 {
  2513     AC_ARG_ENABLE(dbus,
  2514 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2515                         , enable_dbus=yes)
  2516     if test x$enable_dbus = xyes; then
  2517         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2518         if test x$PKG_CONFIG != xno; then
  2519             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2520             save_CFLAGS="$CFLAGS"
  2521             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2522             AC_CHECK_HEADER(dbus/dbus.h,
  2523                             have_dbus_dbus_h_hdr=yes,
  2524                             have_dbus_dbus_h_hdr=no)
  2525             CFLAGS="$save_CFLAGS"
  2526             if test x$have_dbus_dbus_h_hdr = xyes; then
  2527                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2528                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2529                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2530             fi
  2531         fi
  2532     fi
  2533 }
  2534 
  2535 dnl See if the platform wanna IME support.
  2536 CheckIME()
  2537 {
  2538     AC_ARG_ENABLE(ime,
  2539 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2540                   , enable_ime=yes)
  2541     if test x$enable_ime = xyes; then
  2542         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2543             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2544     fi
  2545 }
  2546 
  2547 dnl See if the platform has libibus IME support.
  2548 CheckIBus()
  2549 {
  2550     AC_ARG_ENABLE(ibus,
  2551 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2552                   , enable_ibus=yes)
  2553     if test x$enable_ibus = xyes; then
  2554         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2555         if test x$PKG_CONFIG != xno; then
  2556             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2557             save_CFLAGS="$CFLAGS"
  2558             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2559             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2560                             have_ibus_ibus_h_hdr=yes,
  2561                             have_ibus_ibus_h_hdr=no)
  2562             AC_CHECK_HEADER(sys/inotify.h,
  2563                             have_inotify_inotify_h_hdr=yes,
  2564                             have_inotify_inotify_h_hdr=no)
  2565             CFLAGS="$save_CFLAGS"
  2566             if test x$have_ibus_ibus_h_hdr = xyes; then
  2567                 if test x$enable_ime != xyes; then
  2568                     AC_MSG_WARN([IME support is required for IBus.])
  2569                     have_ibus_ibus_h_hdr=no
  2570                 elif test x$enable_dbus != xyes; then
  2571                     AC_MSG_WARN([DBus support is required for IBus.])
  2572                     have_ibus_ibus_h_hdr=no
  2573                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2574                     AC_MSG_WARN([INotify support is required for IBus.])
  2575                     have_ibus_ibus_h_hdr=no
  2576                 else
  2577                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2578                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2579                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2580                fi
  2581             fi
  2582         fi
  2583     fi
  2584 }
  2585 
  2586 dnl See if the platform has fcitx IME support.
  2587 CheckFcitx()
  2588 {
  2589     AC_ARG_ENABLE(fcitx,
  2590 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2591                   , enable_fcitx=yes)
  2592     if test x$enable_fcitx = xyes; then
  2593         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2594         if test x$PKG_CONFIG != xno; then
  2595             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2596             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2597             AC_CHECK_HEADER(fcitx/frontend.h,
  2598                             have_fcitx_frontend_h_hdr=yes,
  2599                             have_fcitx_frontend_h_hdr=no)
  2600             CFLAGS="$save_CFLAGS"
  2601             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2602                 if test x$enable_ime != xyes; then
  2603                     AC_MSG_WARN([IME support is required for fcitx.])
  2604                     have_fcitx_frontend_h_hdr=no
  2605                 elif test x$enable_dbus != xyes; then
  2606                     AC_MSG_WARN([DBus support is required for fcitx.])
  2607                     have_fcitx_frontend_h_hdr=no
  2608                 else
  2609                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2610                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2611                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2612                fi
  2613             fi
  2614         fi
  2615     fi
  2616 }
  2617 
  2618 dnl See if we can use the Touchscreen input library
  2619 CheckTslib()
  2620 {
  2621     AC_ARG_ENABLE(input-tslib,
  2622 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2623                   , enable_input_tslib=yes)
  2624     if test x$enable_input_tslib = xyes; then
  2625         AC_MSG_CHECKING(for Touchscreen library support)
  2626         enable_input_tslib=no
  2627         AC_TRY_COMPILE([
  2628           #include "tslib.h"
  2629         ],[
  2630         ],[
  2631         enable_input_tslib=yes
  2632         ])
  2633         AC_MSG_RESULT($enable_input_tslib)
  2634         if test x$enable_input_tslib = xyes; then
  2635             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2636             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2637             SUMMARY_input="${SUMMARY_input} ts"
  2638         fi
  2639     fi
  2640 }
  2641 
  2642 dnl See what type of thread model to use on Linux and Solaris
  2643 CheckPTHREAD()
  2644 {
  2645     dnl Check for pthread support
  2646     AC_ARG_ENABLE(pthreads,
  2647 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2648                   , enable_pthreads=yes)
  2649     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2650     AC_ARG_ENABLE(pthread-sem,
  2651 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2652                   , enable_pthread_sem=yes)
  2653     case "$host" in
  2654          *-*-androideabi*)
  2655             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2656             pthread_lib=""
  2657             ;;
  2658         *-*-linux*|*-*-uclinux*)
  2659             pthread_cflags="-D_REENTRANT"
  2660             pthread_lib="-lpthread"
  2661             ;;
  2662         *-*-bsdi*)
  2663             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2664             pthread_lib=""
  2665             ;;
  2666         *-*-darwin*)
  2667             pthread_cflags="-D_THREAD_SAFE"
  2668 # causes Carbon.p complaints?
  2669 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2670             ;;
  2671         *-*-freebsd*|*-*-dragonfly*)
  2672             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2673             pthread_lib="-pthread"
  2674             ;;
  2675         *-*-netbsd*)
  2676             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2677             pthread_lib="-lpthread"
  2678             ;;
  2679         *-*-openbsd*)
  2680             pthread_cflags="-D_REENTRANT"
  2681             pthread_lib="-pthread"
  2682             ;;
  2683         *-*-solaris2.9)
  2684             # From Solaris 9+, posix4's preferred name is rt.
  2685             pthread_cflags="-D_REENTRANT"
  2686             pthread_lib="-lpthread -lrt"
  2687             ;;
  2688         *-*-solaris2.10)
  2689             # Solaris 10+ merged pthread into libc.
  2690             pthread_cflags="-D_REENTRANT"
  2691             pthread_lib="-lrt"
  2692             ;;
  2693         *-*-solaris*)
  2694             # Solaris 11+ merged rt into libc.
  2695             pthread_cflags="-D_REENTRANT"
  2696             pthread_lib=""
  2697             ;;
  2698         *-*-sysv5*)
  2699             pthread_cflags="-D_REENTRANT -Kthread"
  2700             pthread_lib=""
  2701             ;;
  2702         *-*-aix*)
  2703             pthread_cflags="-D_REENTRANT -mthreads"
  2704             pthread_lib="-lpthread"
  2705             ;;
  2706         *-*-hpux11*)
  2707             pthread_cflags="-D_REENTRANT"
  2708             pthread_lib="-L/usr/lib -lpthread"
  2709             ;;
  2710         *-*-haiku*)
  2711             pthread_cflags="-D_REENTRANT"
  2712             pthread_lib=""
  2713             ;;
  2714         *-*-nto*)
  2715             pthread_cflags="-D_REENTRANT"
  2716             pthread_lib=""
  2717             ;;
  2718         *)
  2719             pthread_cflags="-D_REENTRANT"
  2720             pthread_lib="-lpthread"
  2721             ;;
  2722     esac
  2723     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2724         # Save the original compiler flags and libraries
  2725         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2726         # Add the pthread compiler flags and libraries
  2727         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2728         # Check to see if we have pthread support on this system
  2729         AC_MSG_CHECKING(for pthreads)
  2730         use_pthreads=no
  2731         AC_TRY_LINK([
  2732          #include <pthread.h>
  2733         ],[
  2734          pthread_attr_t type;
  2735          pthread_attr_init(&type);
  2736         ],[
  2737         use_pthreads=yes
  2738         ])
  2739         AC_MSG_RESULT($use_pthreads)
  2740         # Restore the compiler flags and libraries
  2741         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2742 
  2743         # Do futher testing if we have pthread support...
  2744         if test x$use_pthreads = xyes; then
  2745             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2746             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2747             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2748             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2749 
  2750             # Save the original compiler flags and libraries
  2751             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2752             # Add the pthread compiler flags and libraries
  2753             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2754 
  2755             # Check to see if recursive mutexes are available
  2756             AC_MSG_CHECKING(for recursive mutexes)
  2757             has_recursive_mutexes=no
  2758             if test x$has_recursive_mutexes = xno; then
  2759                 AC_TRY_LINK([
  2760                   #define _GNU_SOURCE 1
  2761                   #include <pthread.h>
  2762                 ],[
  2763                   pthread_mutexattr_t attr;
  2764                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2765                 ],[
  2766                 has_recursive_mutexes=yes
  2767                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2768                 ])
  2769             fi
  2770             if test x$has_recursive_mutexes = xno; then
  2771                 AC_TRY_LINK([
  2772                   #define _GNU_SOURCE 1
  2773                   #include <pthread.h>
  2774                 ],[
  2775                   pthread_mutexattr_t attr;
  2776                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2777                 ],[
  2778                 has_recursive_mutexes=yes
  2779                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2780                 ])
  2781             fi
  2782             AC_MSG_RESULT($has_recursive_mutexes)
  2783 
  2784             # Check to see if pthread semaphore support is missing
  2785             if test x$enable_pthread_sem = xyes; then
  2786                 AC_MSG_CHECKING(for pthread semaphores)
  2787                 have_pthread_sem=no
  2788                 AC_TRY_COMPILE([
  2789                   #include <pthread.h>
  2790                   #include <semaphore.h>
  2791                 ],[
  2792                 ],[
  2793                 have_pthread_sem=yes
  2794                 ])
  2795                 AC_MSG_RESULT($have_pthread_sem)
  2796             fi
  2797             if test x$have_pthread_sem = xyes; then
  2798                 AC_MSG_CHECKING(for sem_timedwait)
  2799                 have_sem_timedwait=no
  2800                 AC_TRY_LINK([
  2801                   #include <pthread.h>
  2802                   #include <semaphore.h>
  2803                 ],[
  2804                   sem_timedwait(NULL, NULL);
  2805                 ],[
  2806                 have_sem_timedwait=yes
  2807                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2808                 ])
  2809                 AC_MSG_RESULT($have_sem_timedwait)
  2810             fi
  2811 
  2812             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2813             if test x$have_pthread_np_h = xyes; then
  2814                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2815             fi
  2816 
  2817             # Check to see if pthread naming is available
  2818             AC_MSG_CHECKING(for pthread_setname_np)
  2819             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2820               has_pthread_setname_np=yes
  2821               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2822             ],[
  2823               has_pthread_setname_np=no
  2824             ])
  2825             AC_MSG_RESULT($has_pthread_setname_np)
  2826 
  2827             AC_MSG_CHECKING(for pthread_set_name_np)
  2828             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2829               has_pthread_set_name_np=yes
  2830               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2831             ],[
  2832               has_pthread_set_name_np=no
  2833             ])
  2834             AC_MSG_RESULT($has_pthread_set_name_np)
  2835 
  2836             # Restore the compiler flags and libraries
  2837             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2838 
  2839             # Basic thread creation functions
  2840             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2841 
  2842             # Semaphores
  2843             # We can fake these with mutexes and condition variables if necessary
  2844             if test x$have_pthread_sem = xyes; then
  2845                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2846             else
  2847                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2848             fi
  2849 
  2850             # Mutexes
  2851             # We can fake these with semaphores if necessary
  2852             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2853 
  2854             # Condition variables
  2855             # We can fake these with semaphores and mutexes if necessary
  2856             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2857 
  2858             # Thread local storage
  2859             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2860 
  2861             have_threads=yes
  2862         fi
  2863     fi
  2864 }
  2865 
  2866 dnl Determine whether the compiler can produce Windows executables
  2867 CheckWINDOWS()
  2868 {
  2869     AC_MSG_CHECKING(Windows compiler)
  2870     have_win32_gcc=no
  2871     AC_TRY_COMPILE([
  2872      #include <windows.h>
  2873     ],[
  2874     ],[
  2875     have_win32_gcc=yes
  2876     ])
  2877     AC_MSG_RESULT($have_win32_gcc)
  2878     if test x$have_win32_gcc != xyes; then
  2879        AC_MSG_ERROR([
  2880 *** Your compiler ($CC) does not produce Windows executables!
  2881        ])
  2882     fi
  2883 
  2884     AC_MSG_CHECKING(Windows CE)
  2885     have_wince=no
  2886     AC_TRY_COMPILE([
  2887 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2888 #error This is not Windows CE
  2889 #endif
  2890     ],[
  2891     ],[
  2892     have_wince=yes
  2893        AC_MSG_ERROR([
  2894 *** Sorry, Windows CE is no longer supported.
  2895        ])
  2896     ])
  2897     AC_MSG_RESULT($have_wince)
  2898 
  2899     # This fixes Windows stack alignment with newer GCC
  2900     CheckStackBoundary
  2901 }
  2902 
  2903 dnl Find the DirectX includes and libraries
  2904 CheckDIRECTX()
  2905 {
  2906     AC_ARG_ENABLE(directx,
  2907 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2908                   , enable_directx=yes)
  2909     if test x$enable_directx = xyes; then
  2910         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2911         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2912         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2913         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2914         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2915         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2916         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2917         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2918         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  2919         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  2920         AC_TRY_COMPILE([
  2921 #include <windows.h>
  2922 #include <xinput.h>
  2923 XINPUT_GAMEPAD_EX x1;
  2924         ],[],[have_xinput_gamepadex=yes])
  2925         AC_TRY_COMPILE([
  2926 #include <windows.h>
  2927 #include <xinput.h>
  2928 XINPUT_STATE_EX s1;
  2929         ],[],[have_xinput_stateex=yes])
  2930 
  2931         if test x$have_ddraw = xyes; then
  2932             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  2933         fi
  2934         if test x$have_dinput = xyes; then
  2935             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  2936         fi
  2937         if test x$have_dsound = xyes; then
  2938             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  2939         fi
  2940         if test x$have_dxgi = xyes; then
  2941             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  2942         fi
  2943         if test x$have_xinput = xyes; then
  2944             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  2945         fi
  2946         if test x$have_xinput_gamepadex = xyes; then
  2947             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  2948         fi
  2949         if test x$have_xinput_stateex = xyes; then
  2950             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  2951         fi
  2952 
  2953         SUMMARY_video="${SUMMARY_video} directx"
  2954         SUMMARY_audio="${SUMMARY_audio} directx"
  2955 
  2956         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2957         # FIXME:  ...so force it off for now.
  2958         case "$host" in
  2959             *-*-cygwin*)
  2960             have_dinput=false
  2961             ;;
  2962         esac
  2963     fi
  2964 }
  2965 
  2966 dnl Check for the dlfcn.h interface for dynamically loading objects
  2967 CheckDLOPEN()
  2968 {
  2969     AC_ARG_ENABLE(sdl-dlopen,
  2970 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2971                   , enable_sdl_dlopen=yes)
  2972     if test x$enable_sdl_dlopen = xyes; then
  2973         AC_MSG_CHECKING(for dlopen)
  2974         have_dlopen=no
  2975         AC_TRY_COMPILE([
  2976          #include <dlfcn.h>
  2977         ],[
  2978          void *handle = dlopen("", RTLD_NOW);
  2979          const char *loaderror = (char *) dlerror();
  2980         ],[
  2981         have_dlopen=yes
  2982         ])
  2983         AC_MSG_RESULT($have_dlopen)
  2984 
  2985         if test x$have_dlopen = xyes; then
  2986             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2987                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2988                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2989             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2990             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2991             have_loadso=yes
  2992         fi
  2993     fi
  2994 }
  2995 
  2996 dnl Check for the usbhid(3) library on *BSD
  2997 CheckUSBHID()
  2998 {
  2999     case "$host" in
  3000         *-*-*bsd*)
  3001             if test x$enable_joystick = xyes; then
  3002                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3003                 if test x$have_libusbhid = xyes; then
  3004                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3005                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3006                     USB_LIBS="$USB_LIBS -lusbhid"
  3007                 else
  3008                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3009                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3010                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3011                 fi
  3012                     
  3013                 save_CFLAGS="$CFLAGS"
  3014                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3015 
  3016                 AC_MSG_CHECKING(for usbhid)
  3017                 have_usbhid=no
  3018                 AC_TRY_COMPILE([
  3019                   #include <sys/types.h>
  3020                   #if defined(HAVE_USB_H)
  3021                   #include <usb.h>
  3022                   #endif
  3023                   #ifdef __DragonFly__
  3024                   # include <bus/usb/usb.h>
  3025                   # include <bus/usb/usbhid.h>
  3026                   #else
  3027                   # include <dev/usb/usb.h>
  3028                   # include <dev/usb/usbhid.h>
  3029                   #endif
  3030                   #if defined(HAVE_USBHID_H)
  3031                   #include <usbhid.h>
  3032                   #elif defined(HAVE_LIBUSB_H)
  3033                   #include <libusb.h>
  3034                   #elif defined(HAVE_LIBUSBHID_H)
  3035                   #include <libusbhid.h>
  3036                   #endif
  3037                 ],[
  3038                   struct report_desc *repdesc;
  3039                   struct usb_ctl_report *repbuf;
  3040                   hid_kind_t hidkind;
  3041                 ],[
  3042                 have_usbhid=yes
  3043                 ])
  3044                 AC_MSG_RESULT($have_usbhid)
  3045 
  3046                 if test x$have_usbhid = xyes; then
  3047                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3048                     have_usbhid_ucr_data=no
  3049                     AC_TRY_COMPILE([
  3050                       #include <sys/types.h>
  3051                       #if defined(HAVE_USB_H)
  3052                       #include <usb.h>
  3053                       #endif
  3054                       #ifdef __DragonFly__
  3055                       # include <bus/usb/usb.h>
  3056                       # include <bus/usb/usbhid.h>
  3057                       #else
  3058                       # include <dev/usb/usb.h>
  3059                       # include <dev/usb/usbhid.h>
  3060                       #endif
  3061                       #if defined(HAVE_USBHID_H)
  3062                       #include <usbhid.h>
  3063                       #elif defined(HAVE_LIBUSB_H)
  3064                       #include <libusb.h>
  3065                       #elif defined(HAVE_LIBUSBHID_H)
  3066                       #include <libusbhid.h>
  3067                       #endif
  3068                     ],[
  3069                       struct usb_ctl_report buf;
  3070                       if (buf.ucr_data) { }
  3071                     ],[
  3072                     have_usbhid_ucr_data=yes
  3073                     ])
  3074                     if test x$have_usbhid_ucr_data = xyes; then
  3075                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3076                     fi
  3077                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3078                     
  3079                     AC_MSG_CHECKING(for new usbhid API)
  3080                     have_usbhid_new=no
  3081                     AC_TRY_COMPILE([
  3082                       #include <sys/types.h>
  3083                       #if defined(HAVE_USB_H)
  3084                       #include <usb.h>
  3085                       #endif
  3086                       #ifdef __DragonFly__
  3087                       #include <bus/usb/usb.h>
  3088                       #include <bus/usb/usbhid.h>
  3089                       #else
  3090                       #include <dev/usb/usb.h>
  3091                       #include <dev/usb/usbhid.h>
  3092                       #endif
  3093                       #if defined(HAVE_USBHID_H)
  3094                       #include <usbhid.h>
  3095                       #elif defined(HAVE_LIBUSB_H)
  3096                       #include <libusb.h>
  3097                       #elif defined(HAVE_LIBUSBHID_H)
  3098                       #include <libusbhid.h>
  3099                       #endif
  3100                     ],[
  3101                       report_desc_t d;
  3102                       hid_start_parse(d, 1, 1);
  3103                     ],[
  3104                     have_usbhid_new=yes
  3105                     ])
  3106                     if test x$have_usbhid_new = xyes; then
  3107                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3108                     fi
  3109                     AC_MSG_RESULT($have_usbhid_new)
  3110 
  3111                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3112                     have_machine_joystick=no
  3113                     AC_TRY_COMPILE([
  3114                       #include <machine/joystick.h>
  3115                     ],[
  3116                       struct joystick t;
  3117                     ],[
  3118                     have_machine_joystick=yes
  3119                     ])
  3120                     if test x$have_machine_joystick = xyes; then
  3121                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3122                     fi
  3123                     AC_MSG_RESULT($have_machine_joystick)
  3124 
  3125                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3126                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3127                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3128                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3129                     have_joystick=yes
  3130                 fi
  3131                 CFLAGS="$save_CFLAGS"
  3132             fi
  3133         ;;
  3134     esac
  3135 }
  3136 
  3137 dnl Check for clock_gettime()
  3138 CheckClockGettime()
  3139 {
  3140     AC_ARG_ENABLE(clock_gettime,
  3141 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3142                   , enable_clock_gettime=yes)
  3143     if test x$enable_clock_gettime = xyes; then
  3144         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3145         if test x$have_clock_gettime = xyes; then
  3146             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3147             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3148         else
  3149             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3150             if test x$have_clock_gettime = xyes; then
  3151                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3152                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3153             fi
  3154         fi
  3155     fi
  3156 }
  3157 
  3158 dnl Check for a valid linux/version.h
  3159 CheckLinuxVersion()
  3160 {
  3161     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3162     if test x$have_linux_version_h = xyes; then
  3163         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3164     fi
  3165 }
  3166 
  3167 dnl Check if we want to use RPATH
  3168 CheckRPATH()
  3169 {
  3170     AC_ARG_ENABLE(rpath,
  3171 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3172                   , enable_rpath=yes)
  3173 }
  3174 
  3175 dnl Do this on all platforms, before everything else (other things might want to override it).
  3176 CheckWarnAll
  3177 
  3178 dnl Set up the configuration based on the host platform!
  3179 case "$host" in
  3180     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3181         case "$host" in
  3182             *-raspberry-linux*)
  3183                 # Raspberry Pi
  3184                 ARCH=linux
  3185                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  3186                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  3187                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  3188                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  3189                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  3190 
  3191                 if test x$enable_video = xyes; then
  3192                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  3193                     # FIXME: confdefs? Not AC_DEFINE?
  3194                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  3195                     SUMMARY_video="${SUMMARY_video} rpi"
  3196                 fi
  3197                 ;;
  3198             *-*-androideabi*)
  3199                 # Android
  3200                 ARCH=android
  3201                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3202                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3203                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3204                 SDL_LIBS="$SDL_LIBS -lSDL2main -Wl,-u,SDL_main_dummy"
  3205                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3206                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3207                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3208 
  3209                 if test x$enable_video = xyes; then
  3210                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3211                     # FIXME: confdefs? Not AC_DEFINE?
  3212                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3213                     SUMMARY_video="${SUMMARY_video} android"
  3214                 fi
  3215                 ;;
  3216             *-*-linux*)         ARCH=linux ;;
  3217             *-*-uclinux*)       ARCH=linux ;;
  3218             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3219             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3220             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3221             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3222             *-*-bsdi*)          ARCH=bsdi ;;
  3223             *-*-freebsd*)       ARCH=freebsd ;;
  3224             *-*-dragonfly*)     ARCH=freebsd ;;
  3225             *-raspberry-netbsd*)
  3226                 # Raspberry Pi
  3227                 ARCH=netbsd
  3228                 RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  3229                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  3230                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  3231                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  3232                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host -ldl"
  3233 
  3234                 if test x$enable_video = xyes; then
  3235                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  3236                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  3237                     SUMMARY_video="${SUMMARY_video} raspberry"
  3238                 fi
  3239                 ;;
  3240             *-*-netbsd*)        ARCH=netbsd ;;
  3241             *-*-openbsd*)       ARCH=openbsd ;;
  3242             *-*-sysv5*)         ARCH=sysv5 ;;
  3243             *-*-solaris*)       ARCH=solaris ;;
  3244             *-*-hpux*)          ARCH=hpux ;;
  3245             *-*-aix*)           ARCH=aix ;;
  3246             *-*-minix*)         ARCH=minix ;;
  3247             *-*-nto*)           ARCH=nto
  3248                 CheckQNXVideo
  3249                 ;;
  3250         esac
  3251         CheckVisibilityHidden
  3252         CheckDeclarationAfterStatement
  3253         CheckDummyVideo
  3254         CheckDiskAudio
  3255         CheckDummyAudio
  3256         CheckDLOPEN
  3257         CheckOSS
  3258         CheckALSA
  3259         CheckPulseAudio
  3260         CheckJACK
  3261         CheckARTSC
  3262         CheckESD
  3263         CheckNAS
  3264         CheckSNDIO
  3265         CheckFusionSound
  3266         CheckLibSampleRate
  3267         CheckX11
  3268         CheckDirectFB
  3269         CheckKMSDRM
  3270         CheckOpenGLX11
  3271         CheckOpenGLESX11
  3272         CheckVulkan
  3273         CheckMir
  3274         CheckWayland
  3275         CheckLibUDev
  3276         CheckDBus
  3277         CheckIME
  3278         CheckIBus
  3279         CheckFcitx
  3280         case $ARCH in
  3281           linux)
  3282               CheckInputEvents
  3283               CheckInputKD
  3284           ;;
  3285         esac
  3286         CheckTslib
  3287         CheckUSBHID
  3288         CheckPTHREAD
  3289         CheckClockGettime
  3290         CheckLinuxVersion
  3291         CheckRPATH
  3292         CheckVivanteVideo
  3293 
  3294         # Set up files for the audio library
  3295         if test x$enable_audio = xyes; then
  3296           case $ARCH in
  3297             sysv5|solaris|hpux)
  3298                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3299                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3300                 SUMMARY_audio="${SUMMARY_audio} sun"
  3301                 have_audio=yes
  3302             ;;
  3303             netbsd)  # Don't use this on OpenBSD, it's busted.
  3304                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3305                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3306                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3307                 have_audio=yes
  3308             ;;
  3309             aix)
  3310                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3311                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3312                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3313                 have_audio=yes
  3314             ;;
  3315             android)
  3316                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3317                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3318                 SUMMARY_audio="${SUMMARY_audio} android"
  3319                 have_audio=yes
  3320             ;;
  3321             nto)
  3322                 CheckQNXAudio
  3323             ;;
  3324           esac
  3325         fi
  3326         # Set up files for the joystick library
  3327         if test x$enable_joystick = xyes; then
  3328           case $ARCH in
  3329             linux)
  3330                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3331                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3332                 have_joystick=yes
  3333             ;;
  3334             android)
  3335                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3336                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3337                 have_joystick=yes
  3338             ;;
  3339           esac
  3340         fi
  3341         # Set up files for the haptic library
  3342         if test x$enable_haptic = xyes; then
  3343            if test x$use_input_events = xyes; then
  3344              case $ARCH in
  3345                linux)
  3346                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3347                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3348                    have_haptic=yes
  3349                ;;
  3350              esac
  3351            fi
  3352         fi
  3353         # Set up files for the power library
  3354         if test x$enable_power = xyes; then
  3355              case $ARCH in
  3356                linux)
  3357                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3358                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3359                    have_power=yes
  3360                ;;
  3361                android)
  3362                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3363                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3364                    have_power=yes
  3365                ;;
  3366              esac
  3367         fi
  3368         # Set up files for the filesystem library
  3369         if test x$enable_filesystem = xyes; then
  3370              case $ARCH in
  3371                android)
  3372                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3373                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3374                    have_filesystem=yes
  3375                ;;
  3376                *)
  3377                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3378                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3379                    have_filesystem=yes
  3380                ;;
  3381              esac
  3382         fi
  3383         # Set up files for the timer library
  3384         if test x$enable_timers = xyes; then
  3385             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3386             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3387             have_timers=yes
  3388         fi
  3389         # Set up files for udev hotplugging support
  3390         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3391             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3392         fi
  3393         # Set up files for evdev input
  3394         if test x$use_input_events = xyes; then
  3395             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3396         fi       
  3397         # Set up other core UNIX files
  3398         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3399         ;;
  3400     *-*-cygwin* | *-*-mingw32*)
  3401         ARCH=win32
  3402         if test "$build" != "$host"; then # cross-compiling
  3403             # Default cross-compile location
  3404             ac_default_prefix=/usr/local/cross-tools/$host
  3405         else
  3406             # Look for the location of the tools and install there
  3407             if test "$BUILD_PREFIX" != ""; then
  3408                 ac_default_prefix=$BUILD_PREFIX
  3409             fi
  3410         fi
  3411         CheckDeclarationAfterStatement
  3412         CheckDummyVideo
  3413         CheckDiskAudio
  3414         CheckDummyAudio
  3415         CheckWINDOWS
  3416         CheckWINDOWSGL
  3417         CheckWINDOWSGLES
  3418         CheckVulkan
  3419         CheckDIRECTX
  3420 
  3421         # Set up the core platform files
  3422         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3423 
  3424         # Set up files for the video library
  3425         if test x$enable_video = xyes; then
  3426             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3427             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3428             have_video=yes
  3429             AC_ARG_ENABLE(render-d3d,
  3430 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3431                                 , enable_render_d3d=yes)
  3432             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3433                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3434             fi
  3435             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3436                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3437             fi
  3438         fi
  3439         # Set up files for the audio library
  3440         if test x$enable_audio = xyes; then
  3441             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3442             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3443             if test x$have_dsound = xyes; then
  3444                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3445                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3446             fi
  3447             if test x$have_xaudio2 = xyes; then
  3448                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  3449                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  3450             fi
  3451             if test x$have_wasapi = xyes; then
  3452                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3453                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3454             fi
  3455             have_audio=yes
  3456         fi
  3457         # Set up files for the joystick library
  3458         if test x$enable_joystick = xyes; then
  3459             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3460                 if test x$have_xinput = xyes; then
  3461                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3462                 fi
  3463                 if test x$have_dinput = xyes; then
  3464                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3465                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3466                 fi
  3467             else
  3468                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3469             fi
  3470             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3471             have_joystick=yes
  3472         fi
  3473         if test x$enable_haptic = xyes; then
  3474             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3475                 if test x$have_xinput = xyes; then
  3476                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3477                 fi
  3478                 if test x$have_dinput = xyes; then
  3479                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3480                 fi
  3481                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3482                 have_haptic=yes
  3483             fi
  3484         fi
  3485         if test x$enable_power = xyes; then
  3486             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3487             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3488             have_power=yes
  3489         fi
  3490         if test x$enable_filesystem = xyes; then
  3491             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3492             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3493             have_filesystem=yes
  3494         fi
  3495         # Set up files for the thread library
  3496         if test x$enable_threads = xyes; then
  3497             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3498             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3499             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3500             have_threads=yes
  3501         fi
  3502         # Set up files for the timer library
  3503         if test x$enable_timers = xyes; then
  3504             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3505             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3506             have_timers=yes
  3507         fi
  3508         # Set up files for the shared object loading library
  3509         if test x$enable_loadso = xyes; then
  3510             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3511             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3512             have_loadso=yes
  3513         fi
  3514         # Set up the system libraries we need
  3515         if test -f /lib/w32api/libuuid.a; then
  3516             LIBUUID=/lib/w32api/libuuid.a
  3517         else
  3518             LIBUUID=-luuid
  3519         fi
  3520         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3521         # The Windows platform requires special setup
  3522         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3523         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3524         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3525         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3526 
  3527         # Check to see if this is a mingw or cygwin build
  3528         have_mingw32=
  3529         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3530         if test x$have_mingw32 = xyes; then
  3531             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3532         else
  3533             SDL_LIBS="-lcygwin $SDL_LIBS"
  3534         fi
  3535         ;;
  3536 
  3537     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3538     *-*-beos*)
  3539         AC_MSG_ERROR([
  3540 *** BeOS support has been removed as of SDL 2.0.2.
  3541         ])
  3542         ;;
  3543 
  3544     *-*-haiku*)
  3545         ARCH=haiku
  3546         ac_default_prefix=/boot/system
  3547         CheckDummyVideo
  3548         CheckDiskAudio
  3549         CheckDummyAudio
  3550         CheckDLOPEN
  3551         CheckHaikuVideo
  3552         CheckHaikuGL
  3553         CheckPTHREAD
  3554 
  3555         # Set up files for the audio library
  3556         if test x$enable_audio = xyes; then
  3557             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3558             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3559             SUMMARY_audio="${SUMMARY_audio} haiku"
  3560             have_audio=yes
  3561         fi
  3562         # Set up files for the joystick library
  3563         if test x$enable_joystick = xyes; then
  3564             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3565             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3566             have_joystick=yes
  3567         fi
  3568         # Set up files for the timer library
  3569         if test x$enable_timers = xyes; then
  3570             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3571             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3572             have_timers=yes
  3573         fi
  3574         # Set up files for the system power library
  3575         if test x$enable_power = xyes; then
  3576             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3577             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3578             have_power=yes
  3579         fi
  3580         # Set up files for the system filesystem library
  3581         if test x$enable_filesystem = xyes; then
  3582             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3583             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3584             have_filesystem=yes
  3585         fi
  3586         # The Haiku platform requires special setup.
  3587         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3588         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3589         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3590         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3591         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3592         ;;
  3593     arm*-apple-darwin*|*-ios-*)
  3594         ARCH=ios
  3595 
  3596         CheckVisibilityHidden
  3597         CheckDeclarationAfterStatement
  3598         CheckDummyVideo
  3599         CheckDiskAudio
  3600         CheckDummyAudio
  3601         CheckDLOPEN
  3602         CheckPTHREAD
  3603         CheckVulkan
  3604 
  3605         # Set up files for the audio library
  3606         if test x$enable_audio = xyes; then
  3607             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3608             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3609             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3610             have_audio=yes
  3611         fi
  3612         # Set up files for the joystick library
  3613         if test x$enable_joystick = xyes; then
  3614             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3615             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3616             have_joystick=yes
  3617         fi
  3618         # Set up files for the haptic library
  3619         #if test x$enable_haptic = xyes; then
  3620         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3621         #    have_haptic=yes
  3622         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3623         #fi
  3624         # Set up files for the power library
  3625         if test x$enable_power = xyes; then
  3626             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3627             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3628             have_power=yes
  3629         fi
  3630         # Set up files for the filesystem library
  3631         if test x$enable_filesystem = xyes; then
  3632             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3633             have_filesystem=yes
  3634         fi
  3635         # Set up additional files for the file library
  3636         if test x$enable_file = xyes; then
  3637             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3638             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3639         fi
  3640         # Set up files for the timer library
  3641         if test x$enable_timers = xyes; then
  3642             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3643             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3644             have_timers=yes
  3645         fi
  3646         # Set up other core UNIX files
  3647         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3648         # The iOS platform requires special setup.
  3649         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3650         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3651         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3652         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3653         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3654         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3655         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3656         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3657         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3658         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3659         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3660         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3661         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3662         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3663         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3664         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3665         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3666         if test x$enable_video_vulkan = xyes; then
  3667             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3668         fi
  3669         ;;
  3670     *-*-darwin* )
  3671         # This could be either full "Mac OS X", or plain "Darwin" which is
  3672         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3673         # Next line is broken, and a few files below require Mac OS X (full)
  3674         ARCH=macosx
  3675 
  3676         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3677         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3678         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3679 
  3680         CheckVisibilityHidden
  3681         CheckDeclarationAfterStatement
  3682         CheckDummyVideo
  3683         CheckDiskAudio
  3684         CheckDummyAudio
  3685         CheckDLOPEN
  3686         CheckCOCOA
  3687         CheckX11
  3688         CheckMacGL
  3689         CheckOpenGLX11
  3690         CheckVulkan
  3691         CheckPTHREAD
  3692 
  3693         # Set up files for the audio library
  3694         if test x$enable_audio = xyes; then
  3695             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3696             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3697             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3698             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3699             have_audio=yes
  3700         fi
  3701         # Set up files for the joystick library
  3702         if test x$enable_joystick = xyes; then
  3703             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3704             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3705             have_joystick=yes
  3706         fi
  3707         # Set up files for the haptic library
  3708         if test x$enable_haptic = xyes; then
  3709             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3710             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3711             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3712             have_haptic=yes
  3713         fi
  3714         # Set up files for the power library
  3715         if test x$enable_power = xyes; then
  3716             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3717             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3718             have_power=yes
  3719         fi
  3720         # Set up files for the filesystem library
  3721         if test x$enable_filesystem = xyes; then
  3722             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3723             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3724             have_filesystem=yes
  3725         fi
  3726         # Set up files for the timer library
  3727         if test x$enable_timers = xyes; then
  3728             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3729             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3730             have_timers=yes
  3731         fi
  3732         # Set up additional files for the file library
  3733         if test x$enable_file = xyes; then
  3734             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3735         fi
  3736         # Set up other core UNIX files
  3737         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3738         # The Mac OS X platform requires special setup.
  3739         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3740         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3741         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3742         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3743         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3744         if test x$enable_video_vulkan = xyes; then
  3745             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3746         fi
  3747         ;;
  3748     *-nacl|*-pnacl)
  3749         ARCH=nacl
  3750         CheckNativeClient
  3751         CheckDummyAudio
  3752         CheckDummyVideo
  3753         CheckInputEvents
  3754         CheckPTHREAD
  3755         
  3756         # Set up files for the timer library
  3757         if test x$enable_timers = xyes; then
  3758             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3759             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3760             have_timers=yes
  3761         fi
  3762         
  3763         if test x$enable_filesystem = xyes; then
  3764             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3765             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3766             have_filesystem=yes
  3767         fi
  3768         ;;
  3769     *-*-emscripten* )
  3770         if test x$enable_video = xyes; then
  3771             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3772             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3773             have_video=yes
  3774             SUMMARY_video="${SUMMARY_video} emscripten"
  3775         fi
  3776 
  3777         if test x$enable_audio = xyes; then
  3778             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3779             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3780             have_audio=yes
  3781             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3782         fi
  3783 
  3784         CheckVisibilityHidden
  3785         CheckDeclarationAfterStatement
  3786         CheckDummyVideo
  3787         CheckDiskAudio
  3788         CheckDummyAudio
  3789         CheckDLOPEN
  3790         CheckClockGettime
  3791         CheckEmscriptenGLES
  3792 
  3793          # Set up files for the power library
  3794         if test x$enable_power = xyes; then
  3795             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3796             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3797             have_power=yes
  3798         fi
  3799         
  3800         # Set up files for the power library
  3801         if test x$enable_joystick = xyes; then
  3802             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3803             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3804             have_joystick=yes
  3805         fi
  3806 
  3807         # Set up files for the filesystem library
  3808         if test x$enable_filesystem = xyes; then
  3809             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3810             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3811             have_filesystem=yes
  3812         fi
  3813         # Set up files for the timer library
  3814         if test x$enable_timers = xyes; then
  3815             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3816             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3817             have_timers=yes
  3818         fi
  3819         ;;
  3820     *)
  3821         AC_MSG_ERROR([
  3822 *** Unsupported host:  Please add to configure.in
  3823         ])
  3824         ;;
  3825 esac
  3826 
  3827 # Verify that we have all the platform specific files we need
  3828 
  3829 if test x$have_joystick != xyes; then
  3830     if test x$enable_joystick = xyes; then
  3831         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3832     fi
  3833     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3834 fi
  3835 if test x$have_haptic != xyes; then
  3836     if test x$enable_haptic = xyes; then
  3837         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3838     fi
  3839     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3840 fi
  3841 if test x$have_threads != xyes; then
  3842     if test x$enable_threads = xyes; then
  3843         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3844     fi
  3845     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3846 fi
  3847 if test x$have_timers != xyes; then
  3848     if test x$enable_timers = xyes; then
  3849         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3850     fi
  3851     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3852 fi
  3853 if test x$have_filesystem != xyes; then
  3854     if test x$enable_filesystem = xyes; then
  3855         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3856     fi
  3857     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3858 fi
  3859 if test x$have_loadso != xyes; then
  3860     if test x$enable_loadso = xyes; then
  3861         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3862     fi
  3863     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3864 fi
  3865 if test x$SDLMAIN_SOURCES = x; then
  3866     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3867 fi
  3868 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3869 
  3870 if test x$video_wayland = xyes; then
  3871     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3872     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3873     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3874         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3875     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3876         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3877     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3878     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3879 
  3880     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3881 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3882 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3883 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3884 
  3885     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3886 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3887 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3888 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3889 
  3890     WAYLAND_CORE_PROTOCOL_OBJECT="
  3891 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3892 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3893 
  3894     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3895         do echo ; echo \$p | sed\
  3896         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3897 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3898 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3899 
  3900     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3901         do echo ; echo \$p | sed\
  3902         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3903 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3904 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3905 
  3906     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3907         do echo ; echo \$p | sed\
  3908         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3909 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3910 
  3911     WAYLAND_PROTOCOLS_DEPENDS="
  3912 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3913 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3914 $WAYLAND_CORE_PROTOCOL_OBJECT
  3915 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3916 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3917 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3918 "
  3919 fi
  3920 
  3921 OBJECTS=`echo $SOURCES`
  3922 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3923 for EXT in asm cc m c S; do
  3924     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3925     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3926 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3927 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3928 done
  3929 
  3930 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3931 
  3932 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3933 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3934 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3935 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3936 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3937 	\\$(WINDRES) \\$< \\$@,g"`
  3938 
  3939 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3940 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3941 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3942 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3943 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3944 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3945 
  3946 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3947 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3948 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3949 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3950 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3951 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3952 
  3953 # Set runtime shared library paths as needed
  3954 
  3955 if test "x$enable_rpath" = "xyes"; then
  3956   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3957     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3958 
  3959     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  3960     have_enable_new_dtags=no
  3961     save_LDFLAGS="$LDFLAGS"
  3962     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  3963     AC_TRY_LINK([
  3964     ],[
  3965     ],[
  3966     have_enable_new_dtags=yes
  3967     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  3968     ])
  3969     LDFLAGS="$save_LDFLAGS"
  3970     AC_MSG_RESULT($have_enable_new_dtags)
  3971   fi
  3972   if test $ARCH = solaris; then
  3973     SDL_RLD_FLAGS="-R\${libdir}"
  3974   fi
  3975 else
  3976   SDL_RLD_FLAGS=""
  3977 fi
  3978 
  3979 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3980 
  3981 dnl Expand the cflags and libraries needed by apps using SDL
  3982 AC_SUBST(SDL_CFLAGS)
  3983 AC_SUBST(SDL_LIBS)
  3984 AC_SUBST(SDL_STATIC_LIBS)
  3985 AC_SUBST(SDL_RLD_FLAGS)
  3986 if test x$enable_shared = xyes; then
  3987     ENABLE_SHARED_TRUE=
  3988     ENABLE_SHARED_FALSE="#"
  3989 else
  3990     ENABLE_SHARED_TRUE="#"
  3991     ENABLE_SHARED_FALSE=
  3992 fi
  3993 if test x$enable_static = xyes; then
  3994     ENABLE_STATIC_TRUE=
  3995     ENABLE_STATIC_FALSE="#"
  3996 else
  3997     ENABLE_STATIC_TRUE="#"
  3998     ENABLE_STATIC_FALSE=
  3999 fi
  4000 AC_SUBST(ENABLE_SHARED_TRUE)
  4001 AC_SUBST(ENABLE_SHARED_FALSE)
  4002 AC_SUBST(ENABLE_STATIC_TRUE)
  4003 AC_SUBST(ENABLE_STATIC_FALSE)
  4004 
  4005 dnl Expand the sources and objects needed to build the library
  4006 AC_SUBST(ac_aux_dir)
  4007 AC_SUBST(INCLUDE)
  4008 AC_SUBST(OBJECTS)
  4009 AC_SUBST(GEN_HEADERS)
  4010 AC_SUBST(GEN_OBJECTS)
  4011 AC_SUBST(VERSION_OBJECTS)
  4012 AC_SUBST(SDLMAIN_OBJECTS)
  4013 AC_SUBST(SDLTEST_OBJECTS)
  4014 AC_SUBST(BUILD_CFLAGS)
  4015 AC_SUBST(EXTRA_CFLAGS)
  4016 AC_SUBST(BUILD_LDFLAGS)
  4017 AC_SUBST(EXTRA_LDFLAGS)
  4018 AC_SUBST(WINDRES)
  4019 AC_SUBST(WAYLAND_SCANNER)
  4020 
  4021 cat >Makefile.rules <<__EOF__
  4022 
  4023 # Build rules for objects
  4024 -include \$(OBJECTS:.lo=.d)
  4025 
  4026 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4027 $srcdir/src/SDL.c: update-revision
  4028 $DEPENDS
  4029 $VERSION_DEPENDS
  4030 $SDLMAIN_DEPENDS
  4031 $SDLTEST_DEPENDS
  4032 $WAYLAND_PROTOCOLS_DEPENDS
  4033 __EOF__
  4034 
  4035 AC_CONFIG_FILES([
  4036     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4037 ])
  4038 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4039 
  4040 SUMMARY="SDL2 Configure Summary:\n"
  4041 if test x$enable_shared = xyes; then
  4042     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4043 fi
  4044 if test x$enable_static = xyes; then
  4045     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4046 fi
  4047 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4048 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4049 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4050 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4051 if test x$have_x = xyes; then
  4052     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4053 fi
  4054 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4055 if test x$have_samplerate_h_hdr = xyes; then
  4056     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4057 else
  4058     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4059 fi
  4060 if test x$have_libudev_h_hdr = xyes; then
  4061     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4062 else
  4063     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4064 fi
  4065 if test x$have_dbus_dbus_h_hdr = xyes; then
  4066     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4067 else
  4068     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4069 fi
  4070 if test x$enable_ime = xyes; then
  4071     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4072 else
  4073     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4074 fi
  4075 if test x$have_ibus_ibus_h_hdr = xyes; then
  4076     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4077 else
  4078     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4079 fi
  4080 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4081     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4082 else
  4083     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4084 fi
  4085 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4086 
  4087 AC_OUTPUT