configure.in
author Ryan C. Gordon <icculus@icculus.org>
Wed, 06 Dec 2017 12:24:32 -0500
changeset 11726 27d08f1aab80
parent 11702 cf166abbde4a
child 11729 d1ce8396c356
permissions -rw-r--r--
audio: Port WASAPI to WinRT, remove XAudio2 backend.

XAudio2 doesn't have capture support, so WASAPI was to replace it; the holdout
was WinRT, which still needed it as its primary audio target until the WASAPI
code code be made to work.

The support matrix now looks like:

WinXP: directsound by default, winmm as a fallback for buggy drivers.
Vista+: WASAPI (directsound and winmm as fallbacks for debugging).
WinRT: WASAPI
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=8
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=8
    26 SDL_VERSION=$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 -idirafter $srcdir/src/video/khronos"
    72 if test x$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 limits.h ctype.h math.h float.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$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf fabs fabsf floor floorf fmod fmodf log logf pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   280 
   281 	dnl Check for additional non-standard headers
   282     AC_CHECK_HEADERS(libunwind.h)
   283 fi
   284 
   285 dnl AC_CHECK_SIZEOF(void*)
   286 
   287 dnl See whether we can use gcc atomic operations on this architecture
   288 AC_ARG_ENABLE(gcc-atomics,
   289 AC_HELP_STRING([--enable-gcc-atomics],
   290                [Use gcc builtin atomics [[default=yes]]]),
   291               , enable_gcc_atomics=yes)
   292 if test x$enable_gcc_atomics = xyes; then
   293     have_gcc_atomics=no
   294     AC_MSG_CHECKING(for GCC builtin atomic operations)
   295     AC_TRY_LINK([
   296     ],[
   297     int a;
   298     void *x, *y, *z;
   299     __sync_lock_test_and_set(&a, 4);
   300     __sync_lock_test_and_set(&x, y);
   301     __sync_fetch_and_add(&a, 1);
   302     __sync_bool_compare_and_swap(&a, 5, 10);
   303     __sync_bool_compare_and_swap(&x, y, z);
   304     ],[
   305     have_gcc_atomics=yes
   306     ])
   307     AC_MSG_RESULT($have_gcc_atomics)
   308 
   309     if test x$have_gcc_atomics = xyes; then
   310         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   311     else
   312         # See if we have the minimum operation needed for GCC atomics
   313         AC_TRY_LINK([
   314         ],[
   315         int a;
   316         __sync_lock_test_and_set(&a, 1);
   317         __sync_lock_release(&a);
   318         ],[
   319         have_gcc_sync_lock_test_and_set=yes
   320         ])
   321         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   322             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   323         fi
   324     fi
   325 fi
   326 
   327 # Standard C sources
   328 SOURCES="$SOURCES $srcdir/src/*.c"
   329 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   330 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   331 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   332 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   333 SOURCES="$SOURCES $srcdir/src/events/*.c"
   334 SOURCES="$SOURCES $srcdir/src/file/*.c"
   335 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   336 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   337 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   338 SOURCES="$SOURCES $srcdir/src/power/*.c"
   339 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   340 SOURCES="$SOURCES $srcdir/src/render/*.c"
   341 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   342 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   343 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   344 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   345 SOURCES="$SOURCES $srcdir/src/video/*.c"
   346 SOURCES="$SOURCES $srcdir/src/video/yuv2rgb/*.c"
   347 
   348 dnl Enable/disable various subsystems of the SDL library
   349 
   350 AC_ARG_ENABLE(atomic,
   351 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   352               , enable_atomic=yes)
   353 if test x$enable_atomic != xyes; then
   354     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   355 else
   356     SUMMARY_modules="${SUMMARY_modules} atomic"
   357 fi
   358 AC_ARG_ENABLE(audio,
   359 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   360               , enable_audio=yes)
   361 if test x$enable_audio != xyes; then
   362     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   363 else
   364     SUMMARY_modules="${SUMMARY_modules} audio"
   365 fi
   366 AC_ARG_ENABLE(video,
   367 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   368               , enable_video=yes)
   369 if test x$enable_video != xyes; then
   370     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   371 else
   372     SUMMARY_modules="${SUMMARY_modules} video"
   373 fi
   374 AC_ARG_ENABLE(render,
   375 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   376               , enable_render=yes)
   377 if test x$enable_render != xyes; then
   378     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   379 else
   380     SUMMARY_modules="${SUMMARY_modules} render"
   381 fi
   382 AC_ARG_ENABLE(events,
   383 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   384               , enable_events=yes)
   385 if test x$enable_events != xyes; then
   386     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   387 else
   388     SUMMARY_modules="${SUMMARY_modules} events"
   389 fi
   390 AC_ARG_ENABLE(joystick,
   391 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   392               , enable_joystick=yes)
   393 if test x$enable_joystick != xyes; then
   394     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   395 else
   396     SUMMARY_modules="${SUMMARY_modules} joystick"
   397 fi
   398 AC_ARG_ENABLE(haptic,
   399 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   400               , enable_haptic=yes)
   401 if test x$enable_haptic != xyes; then
   402     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   403 else
   404     SUMMARY_modules="${SUMMARY_modules} haptic"
   405 fi
   406 AC_ARG_ENABLE(power,
   407 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   408               , enable_power=yes)
   409 if test x$enable_power != xyes; then
   410     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   411 else
   412     SUMMARY_modules="${SUMMARY_modules} power"
   413 fi
   414 AC_ARG_ENABLE(filesystem,
   415 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   416               , enable_filesystem=yes)
   417 if test x$enable_filesystem != xyes; then
   418     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   419 else
   420     SUMMARY_modules="${SUMMARY_modules} filesystem"
   421 fi
   422 AC_ARG_ENABLE(threads,
   423 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   424               , enable_threads=yes)
   425 if test x$enable_threads != xyes; then
   426     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   427 else
   428     SUMMARY_modules="${SUMMARY_modules} threads"
   429 fi
   430 AC_ARG_ENABLE(timers,
   431 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   432               , enable_timers=yes)
   433 if test x$enable_timers != xyes; then
   434     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   435 else
   436     SUMMARY_modules="${SUMMARY_modules} timers"
   437 fi
   438 AC_ARG_ENABLE(file,
   439 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   440               , enable_file=yes)
   441 if test x$enable_file != xyes; then
   442     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   443 else
   444     SUMMARY_modules="${SUMMARY_modules} file"
   445 fi
   446 AC_ARG_ENABLE(loadso,
   447 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   448               , enable_loadso=yes)
   449 if test x$enable_loadso != xyes; then
   450     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   451 else
   452     SUMMARY_modules="${SUMMARY_modules} loadso"
   453 fi
   454 AC_ARG_ENABLE(cpuinfo,
   455 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   456               , enable_cpuinfo=yes)
   457 if test x$enable_cpuinfo != xyes; then
   458     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   459 else
   460     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   461 fi
   462 AC_ARG_ENABLE(assembly,
   463 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   464               , enable_assembly=yes)
   465 if test x$enable_assembly = xyes; then
   466     SUMMARY_modules="${SUMMARY_modules} assembly"
   467 
   468     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   469 
   470     # Make sure that we don't generate floating point code that would
   471     # cause illegal instruction exceptions on older processors
   472     case "$host" in
   473         *-*-darwin*)
   474             # Don't need to worry about Apple hardware, it's all SSE capable
   475             default_ssemath=yes
   476             ;;
   477         *64-*-*)
   478             # x86 64-bit architectures all have SSE instructions
   479             default_ssemath=yes
   480             ;;
   481         *)
   482             default_ssemath=no
   483             ;;
   484     esac
   485     AC_ARG_ENABLE(ssemath,
   486 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=maybe]]]),
   487                   , enable_ssemath=$default_ssemath)
   488     if test x$enable_ssemath = xno; then
   489         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes -o x$have_gcc_sse3 = xyes; then
   490             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   491         fi
   492     fi
   493 
   494     dnl Check for various instruction support
   495     AC_ARG_ENABLE(mmx,
   496 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   497                   , enable_mmx=yes)
   498     if test x$enable_mmx = xyes; then
   499         save_CFLAGS="$CFLAGS"
   500         have_gcc_mmx=no
   501         AC_MSG_CHECKING(for GCC -mmmx option)
   502         mmx_CFLAGS="-mmmx"
   503         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   504 
   505         AC_TRY_COMPILE([
   506         #ifdef __MINGW32__
   507         #include <_mingw.h>
   508         #ifdef __MINGW64_VERSION_MAJOR
   509         #include <intrin.h>
   510         #else
   511         #include <mmintrin.h>
   512         #endif
   513         #else
   514         #include <mmintrin.h>
   515         #endif
   516         #ifndef __MMX__
   517         #error Assembler CPP flag not enabled
   518         #endif
   519         ],[
   520         ],[
   521         have_gcc_mmx=yes
   522         ])
   523         AC_MSG_RESULT($have_gcc_mmx)
   524         CFLAGS="$save_CFLAGS"
   525 
   526         if test x$have_gcc_mmx = xyes; then
   527             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   528             SUMMARY_math="${SUMMARY_math} mmx"
   529         fi
   530     fi
   531 
   532     AC_ARG_ENABLE(3dnow,
   533 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   534                   , enable_3dnow=yes)
   535     if test x$enable_3dnow = xyes; then
   536         save_CFLAGS="$CFLAGS"
   537         have_gcc_3dnow=no
   538         AC_MSG_CHECKING(for GCC -m3dnow option)
   539         amd3dnow_CFLAGS="-m3dnow"
   540         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   541 
   542         AC_TRY_LINK([
   543         #include <mm3dnow.h>
   544         #ifndef __3dNOW__
   545         #error Assembler CPP flag not enabled
   546         #endif
   547         ],[
   548         void *p = 0;
   549         _m_prefetch(p);
   550         ],[
   551         have_gcc_3dnow=yes
   552         ])
   553         AC_MSG_RESULT($have_gcc_3dnow)
   554         CFLAGS="$save_CFLAGS"
   555 
   556         if test x$have_gcc_3dnow = xyes; then
   557             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   558             SUMMARY_math="${SUMMARY_math} 3dnow"
   559         fi
   560     fi
   561 
   562     AC_ARG_ENABLE(sse,
   563 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   564                   , enable_sse=yes)
   565     if test x$enable_sse = xyes; then
   566         save_CFLAGS="$CFLAGS"
   567         have_gcc_sse=no
   568         AC_MSG_CHECKING(for GCC -msse option)
   569         sse_CFLAGS="-msse"
   570         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   571 
   572         AC_TRY_COMPILE([
   573         #ifdef __MINGW32__
   574         #include <_mingw.h>
   575         #ifdef __MINGW64_VERSION_MAJOR
   576         #include <intrin.h>
   577         #else
   578         #include <xmmintrin.h>
   579         #endif
   580         #else
   581         #include <xmmintrin.h>
   582         #endif
   583         #ifndef __SSE__
   584         #error Assembler CPP flag not enabled
   585         #endif
   586         ],[
   587         ],[
   588         have_gcc_sse=yes
   589         ])
   590         AC_MSG_RESULT($have_gcc_sse)
   591         CFLAGS="$save_CFLAGS"
   592 
   593         if test x$have_gcc_sse = xyes; then
   594             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   595             SUMMARY_math="${SUMMARY_math} sse"
   596         fi
   597     fi
   598 
   599     AC_ARG_ENABLE(sse2,
   600 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=maybe]]]),
   601                   , enable_sse2=$default_ssemath)
   602     if test x$enable_sse2 = xyes; then
   603         save_CFLAGS="$CFLAGS"
   604         have_gcc_sse2=no
   605         AC_MSG_CHECKING(for GCC -msse2 option)
   606         sse2_CFLAGS="-msse2"
   607         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   608 
   609         AC_TRY_COMPILE([
   610         #ifdef __MINGW32__
   611         #include <_mingw.h>
   612         #ifdef __MINGW64_VERSION_MAJOR
   613         #include <intrin.h>
   614         #else
   615         #include <emmintrin.h>
   616         #endif
   617         #else
   618         #include <emmintrin.h>
   619         #endif
   620         #ifndef __SSE2__
   621         #error Assembler CPP flag not enabled
   622         #endif
   623         ],[
   624         ],[
   625         have_gcc_sse2=yes
   626         ])
   627         AC_MSG_RESULT($have_gcc_sse2)
   628         CFLAGS="$save_CFLAGS"
   629 
   630         if test x$have_gcc_sse2 = xyes; then
   631             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   632             SUMMARY_math="${SUMMARY_math} sse2"
   633         fi
   634     fi
   635 
   636     AC_ARG_ENABLE(sse3,
   637 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   638                   , enable_sse3=$default_ssemath)
   639     if test x$enable_sse3 = xyes; then
   640         save_CFLAGS="$CFLAGS"
   641         have_gcc_sse3=no
   642         AC_MSG_CHECKING(for GCC -msse3 option)
   643         sse3_CFLAGS="-msse3"
   644         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   645 
   646         AC_TRY_COMPILE([
   647         #ifdef __MINGW32__
   648         #include <_mingw.h>
   649         #ifdef __MINGW64_VERSION_MAJOR
   650         #include <intrin.h>
   651         #else
   652         #include <pmmintrin.h>
   653         #endif
   654         #else
   655         #include <pmmintrin.h>
   656         #endif
   657         #ifndef __SSE2__
   658         #error Assembler CPP flag not enabled
   659         #endif
   660         ],[
   661         ],[
   662         have_gcc_sse3=yes
   663         ])
   664         AC_MSG_RESULT($have_gcc_sse3)
   665         CFLAGS="$save_CFLAGS"
   666 
   667         if test x$have_gcc_sse3 = xyes; then
   668             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   669             SUMMARY_math="${SUMMARY_math} sse3"
   670         fi
   671     fi
   672 
   673     AC_ARG_ENABLE(altivec,
   674 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   675                   , enable_altivec=yes)
   676     if test x$enable_altivec = xyes; then
   677         save_CFLAGS="$CFLAGS"
   678         have_gcc_altivec=no
   679         have_altivec_h_hdr=no
   680         altivec_CFLAGS="-maltivec"
   681         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   682 
   683         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   684         AC_TRY_COMPILE([
   685         #include <altivec.h>
   686         vector unsigned int vzero() {
   687             return vec_splat_u32(0);
   688         }
   689         ],[
   690         ],[
   691         have_gcc_altivec=yes
   692         have_altivec_h_hdr=yes
   693         ])
   694         AC_MSG_RESULT($have_gcc_altivec)
   695 
   696         if test x$have_gcc_altivec = xno; then
   697             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   698             AC_TRY_COMPILE([
   699             vector unsigned int vzero() {
   700                 return vec_splat_u32(0);
   701             }
   702             ],[
   703             ],[
   704             have_gcc_altivec=yes
   705             ])
   706             AC_MSG_RESULT($have_gcc_altivec)
   707         fi
   708 
   709         if test x$have_gcc_altivec = xno; then
   710             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   711             altivec_CFLAGS="-faltivec"
   712             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   713             AC_TRY_COMPILE([
   714             #include <altivec.h>
   715             vector unsigned int vzero() {
   716                 return vec_splat_u32(0);
   717             }
   718             ],[
   719             ],[
   720             have_gcc_altivec=yes
   721             have_altivec_h_hdr=yes
   722             ])
   723             AC_MSG_RESULT($have_gcc_altivec)
   724         fi
   725 
   726         if test x$have_gcc_altivec = xno; then
   727             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   728             AC_TRY_COMPILE([
   729             vector unsigned int vzero() {
   730                 return vec_splat_u32(0);
   731             }
   732             ],[
   733             ],[
   734             have_gcc_altivec=yes
   735             ])
   736             AC_MSG_RESULT($have_gcc_altivec)
   737         fi
   738         CFLAGS="$save_CFLAGS"
   739 
   740         if test x$have_gcc_altivec = xyes; then
   741             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   742             if test x$have_altivec_h_hdr = xyes; then
   743               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   744             fi
   745             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   746             SUMMARY_math="${SUMMARY_math} altivec"
   747         fi
   748     fi
   749 fi
   750 
   751 dnl See if the OSS audio interface is supported
   752 CheckOSS()
   753 {
   754     AC_ARG_ENABLE(oss,
   755 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   756                   , enable_oss=maybe)
   757 
   758     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   759     #  use sndio instead. So on there, we default to disabled. You can force
   760     #  it on if you really want, though.
   761     if test x$enable_oss = xmaybe; then
   762         enable_oss=yes
   763         case "$host" in
   764             *-*-openbsd*)
   765                 enable_oss=no;;
   766         esac
   767     fi
   768 
   769     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   770         AC_MSG_CHECKING(for OSS audio support)
   771         have_oss=no
   772         if test x$have_oss != xyes; then
   773             AC_TRY_COMPILE([
   774               #include <sys/soundcard.h>
   775             ],[
   776               int arg = SNDCTL_DSP_SETFRAGMENT;
   777             ],[
   778             have_oss=yes
   779             ])
   780         fi
   781         if test x$have_oss != xyes; then
   782             AC_TRY_COMPILE([
   783               #include <soundcard.h>
   784             ],[
   785               int arg = SNDCTL_DSP_SETFRAGMENT;
   786             ],[
   787             have_oss=yes
   788             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   789             ])
   790         fi
   791         AC_MSG_RESULT($have_oss)
   792         if test x$have_oss = xyes; then
   793             SUMMARY_audio="${SUMMARY_audio} oss"
   794             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   795             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   796             have_audio=yes
   797 
   798             # We may need to link with ossaudio emulation library
   799             case "$host" in
   800                 *-*-openbsd*|*-*-netbsd*)
   801                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   802             esac
   803         fi
   804     fi
   805 }
   806 
   807 dnl See if the ALSA audio interface is supported
   808 CheckALSA()
   809 {
   810     AC_ARG_ENABLE(alsa,
   811 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   812                   , enable_alsa=yes)
   813     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   814         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   815         # Restore all flags from before the ALSA detection runs
   816         CFLAGS="$alsa_save_CFLAGS"
   817         LDFLAGS="$alsa_save_LDFLAGS"
   818         LIBS="$alsa_save_LIBS"
   819         if test x$have_alsa = xyes; then
   820             AC_ARG_ENABLE(alsa-shared,
   821 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   822                           , enable_alsa_shared=yes)
   823             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   824 
   825             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   826             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   827             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   828             if test x$have_loadso != xyes && \
   829                test x$enable_alsa_shared = xyes; then
   830                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   831             fi
   832             if test x$have_loadso = xyes && \
   833                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   834                 echo "-- dynamic libasound -> $alsa_lib"
   835                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   836                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   837             else
   838                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   839                 SUMMARY_audio="${SUMMARY_audio} alsa"
   840             fi
   841             have_audio=yes
   842         fi
   843     fi
   844 }
   845 
   846 dnl Find JACK Audio
   847 CheckJACK()
   848 {
   849     AC_ARG_ENABLE(jack,
   850 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   851                   , enable_jack=yes)
   852     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   853         audio_jack=no
   854 
   855         JACK_REQUIRED_VERSION=0.125
   856 
   857         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   858         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   859         if test x$PKG_CONFIG != xno; then
   860         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   861                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   862                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   863                 audio_jack=yes
   864             fi
   865         fi
   866         AC_MSG_RESULT($audio_jack)
   867 
   868         if test x$audio_jack = xyes; then
   869             AC_ARG_ENABLE(jack-shared,
   870 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   871                           , enable_jack_shared=yes)
   872             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   873 
   874             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   875             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   876             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   877             if test x$have_loadso != xyes && \
   878                test x$enable_jack_shared = xyes; then
   879                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   880             fi
   881             if test x$have_loadso = xyes && \
   882                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   883                 echo "-- dynamic libjack -> $jack_lib"
   884                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   885                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   886 
   887                 case "$host" in
   888                     # On Solaris, jack must be linked deferred explicitly
   889                     # to prevent undefined symbol failures.
   890                     *-*-solaris*)
   891                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   892                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   893                 esac
   894             else
   895                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   896                 SUMMARY_audio="${SUMMARY_audio} jack"
   897             fi
   898             have_audio=yes
   899         fi
   900     fi
   901 }
   902 
   903 dnl Find the ESD includes and libraries
   904 CheckESD()
   905 {
   906     AC_ARG_ENABLE(esd,
   907 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   908                   , enable_esd=yes)
   909     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   910         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   911         if test x$have_esd = xyes; then
   912             AC_ARG_ENABLE(esd-shared,
   913 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   914                           , enable_esd_shared=yes)
   915             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   916 
   917             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   918             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   919             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   920             if test x$have_loadso != xyes && \
   921                test x$enable_esd_shared = xyes; then
   922                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   923             fi
   924             if test x$have_loadso = xyes && \
   925                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   926                 echo "-- dynamic libesd -> $esd_lib"
   927                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   928                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   929             else
   930                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   931                 SUMMARY_audio="${SUMMARY_audio} esd"
   932             fi
   933             have_audio=yes
   934         fi
   935     fi
   936 }
   937 
   938 dnl Find PulseAudio
   939 CheckPulseAudio()
   940 {
   941     AC_ARG_ENABLE(pulseaudio,
   942 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   943                   , enable_pulseaudio=yes)
   944     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   945         audio_pulseaudio=no
   946 
   947         PULSEAUDIO_REQUIRED_VERSION=0.9
   948 
   949         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   950         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   951         if test x$PKG_CONFIG != xno; then
   952         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   953                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   954                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   955                 audio_pulseaudio=yes
   956             fi
   957         fi
   958         AC_MSG_RESULT($audio_pulseaudio)
   959 
   960         if test x$audio_pulseaudio = xyes; then
   961             AC_ARG_ENABLE(pulseaudio-shared,
   962 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   963                           , enable_pulseaudio_shared=yes)
   964             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   965 
   966             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   967             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   968             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   969             if test x$have_loadso != xyes && \
   970                test x$enable_pulseaudio_shared = xyes; then
   971                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   972             fi
   973             if test x$have_loadso = xyes && \
   974                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   975                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   976                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   977                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   978 
   979                 case "$host" in
   980                     # On Solaris, pulseaudio must be linked deferred explicitly
   981                     # to prevent undefined symbol failures.
   982                     *-*-solaris*)
   983                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   984                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   985                 esac
   986             else
   987                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   988                 SUMMARY_audio="${SUMMARY_audio} pulse"
   989             fi
   990             have_audio=yes
   991         fi
   992     fi
   993 }
   994 
   995 CheckARTSC()
   996 {
   997     AC_ARG_ENABLE(arts,
   998 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   999                   , enable_arts=yes)
  1000     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
  1001         AC_PATH_PROG(ARTSCONFIG, artsc-config)
  1002         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
  1003             : # arts isn't installed
  1004         else
  1005             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1006             ARTS_LIBS=`$ARTSCONFIG --libs`
  1007             AC_MSG_CHECKING(for aRts development environment)
  1008             audio_arts=no
  1009             save_CFLAGS="$CFLAGS"
  1010             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1011             AC_TRY_COMPILE([
  1012              #include <artsc.h>
  1013             ],[
  1014              arts_stream_t stream;
  1015             ],[
  1016             audio_arts=yes
  1017             ])
  1018             CFLAGS="$save_CFLAGS"
  1019             AC_MSG_RESULT($audio_arts)
  1020             if test x$audio_arts = xyes; then
  1021                 AC_ARG_ENABLE(arts-shared,
  1022 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1023                               , enable_arts_shared=yes)
  1024                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1025 
  1026                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1027                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1028                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1029                 if test x$have_loadso != xyes && \
  1030                    test x$enable_arts_shared = xyes; then
  1031                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1032                 fi
  1033                 if test x$have_loadso = xyes && \
  1034                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1035                     echo "-- dynamic libartsc -> $arts_lib"
  1036                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1037                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1038                 else
  1039                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1040                     SUMMARY_audio="${SUMMARY_audio} arts"
  1041                 fi
  1042                 have_audio=yes
  1043             fi
  1044         fi
  1045     fi
  1046 }
  1047 
  1048 dnl See if the NAS audio interface is supported
  1049 CheckNAS()
  1050 {
  1051     AC_ARG_ENABLE(nas,
  1052 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1053                   , enable_nas=yes)
  1054     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1055         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1056         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1057 
  1058         AC_MSG_CHECKING(for NAS audio support)
  1059         have_nas=no
  1060 
  1061         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1062             have_nas=yes
  1063             NAS_LIBS="-laudio"
  1064 
  1065         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1066             have_nas=yes
  1067             NAS_CFLAGS="-I/usr/X11R6/include/"
  1068             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1069 
  1070         fi
  1071 
  1072         AC_MSG_RESULT($have_nas)
  1073 
  1074         if test x$have_nas = xyes; then
  1075             AC_ARG_ENABLE(nas-shared,
  1076 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1077                           , enable_nas_shared=yes)
  1078             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1079 
  1080             if test x$have_loadso != xyes && \
  1081                test x$enable_nas_shared = xyes; then
  1082                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1083             fi
  1084             if test x$have_loadso = xyes && \
  1085                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1086                 echo "-- dynamic libaudio -> $nas_lib"
  1087                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1088                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1089             else
  1090                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1091                 SUMMARY_audio="${SUMMARY_audio} nas"
  1092             fi
  1093 
  1094             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1095             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1096             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1097             have_audio=yes
  1098         fi
  1099     fi
  1100 }
  1101 
  1102 dnl See if the sndio audio interface is supported
  1103 CheckSNDIO()
  1104 {
  1105     AC_ARG_ENABLE(sndio,
  1106 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1107                   , enable_sndio=yes)
  1108     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1109         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1110         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1111 
  1112         AC_MSG_CHECKING(for sndio audio support)
  1113         have_sndio=no
  1114 
  1115         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1116             have_sndio=yes
  1117             SNDIO_LIBS="-lsndio"
  1118         fi
  1119 
  1120         AC_MSG_RESULT($have_sndio)
  1121 
  1122         if test x$have_sndio = xyes; then
  1123             AC_ARG_ENABLE(sndio-shared,
  1124 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1125                           , enable_sndio_shared=yes)
  1126             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1127 
  1128             if test x$have_loadso != xyes && \
  1129                test x$enable_sndio_shared = xyes; then
  1130                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1131             fi
  1132             if test x$have_loadso = xyes && \
  1133                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1134                 echo "-- dynamic libsndio -> $sndio_lib"
  1135                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1136                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1137             else
  1138                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1139                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1140             fi
  1141 
  1142             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1143             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1144             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1145             have_audio=yes
  1146         fi
  1147     fi
  1148 }
  1149 
  1150 dnl Find FusionSound
  1151 CheckFusionSound()
  1152 {
  1153     AC_ARG_ENABLE(fusionsound,
  1154 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1155                   , enable_fusionsound=no)
  1156     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1157         fusionsound=no
  1158 
  1159         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1160 
  1161         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1162         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1163         if test x$PKG_CONFIG != xno; then
  1164             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1165                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1166                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1167                 fusionsound=yes
  1168             fi
  1169         fi
  1170         AC_MSG_RESULT($fusionsound)
  1171 
  1172         if test x$fusionsound = xyes; then
  1173             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1174             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1175             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1176             
  1177             AC_ARG_ENABLE(fusionsound-shared,
  1178 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1179                           , enable_fusionsound_shared=yes)
  1180             fusionsound_shared=no
  1181             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1182             if test x$have_loadso != xyes && \
  1183                test x$enable_fusionsound_shared = xyes; then
  1184                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1185             fi
  1186             if test x$have_loadso = xyes && \
  1187                test x$enable_fusionsound_shared = xyes; then
  1188                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1189                 fusionsound_shared=yes
  1190                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1191             else
  1192                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1193                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1194             fi
  1195             AC_MSG_RESULT($fusionsound_shared)
  1196             
  1197             have_audio=yes
  1198         fi
  1199     fi
  1200 }
  1201 
  1202 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1203 CheckDiskAudio()
  1204 {
  1205     AC_ARG_ENABLE(diskaudio,
  1206 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1207                   , enable_diskaudio=yes)
  1208     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1209         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1210         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1211         SUMMARY_audio="${SUMMARY_audio} disk"
  1212     fi
  1213 }
  1214 
  1215 dnl rcg03142006 See if the user wants the dummy audio driver...
  1216 CheckDummyAudio()
  1217 {
  1218     AC_ARG_ENABLE(dummyaudio,
  1219 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1220                   , enable_dummyaudio=yes)
  1221     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1222         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1223         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1224         SUMMARY_audio="${SUMMARY_audio} dummy"
  1225     fi
  1226 }
  1227 
  1228 dnl See if libsamplerate is available
  1229 CheckLibSampleRate()
  1230 {
  1231     AC_ARG_ENABLE(libsamplerate,
  1232 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1233                   , enable_libsamplerate=yes)
  1234     if test x$enable_libsamplerate = xyes; then
  1235         AC_CHECK_HEADER(samplerate.h,
  1236                         have_samplerate_h_hdr=yes,
  1237                         have_samplerate_h_hdr=no)
  1238         if test x$have_samplerate_h_hdr = xyes; then
  1239             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1240 
  1241             AC_ARG_ENABLE(libsamplerate-shared,
  1242 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1243                           , enable_libsamplerate_shared=yes)
  1244 
  1245             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1246 
  1247             if test x$have_loadso != xyes && \
  1248                test x$enable_libsamplerate_shared = xyes; then
  1249                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1250             fi
  1251             if test x$have_loadso = xyes && \
  1252                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1253                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1254                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1255             else
  1256                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1257             fi
  1258         fi
  1259     fi
  1260 }
  1261 
  1262 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1263 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1264 CheckVisibilityHidden()
  1265 {
  1266     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1267     have_gcc_fvisibility=no
  1268 
  1269     visibility_CFLAGS="-fvisibility=hidden"
  1270     save_CFLAGS="$CFLAGS"
  1271     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1272     AC_TRY_COMPILE([
  1273     #if !defined(__GNUC__) || __GNUC__ < 4
  1274     #error SDL only uses visibility attributes in GCC 4 or newer
  1275     #endif
  1276     ],[
  1277     ],[
  1278     have_gcc_fvisibility=yes
  1279     ])
  1280     AC_MSG_RESULT($have_gcc_fvisibility)
  1281     CFLAGS="$save_CFLAGS"
  1282 
  1283     if test x$have_gcc_fvisibility = xyes; then
  1284         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1285     fi
  1286 }
  1287 
  1288 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1289 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1290 CheckStackBoundary()
  1291 {
  1292     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1293     have_gcc_preferred_stack_boundary=no
  1294 
  1295     save_CFLAGS="$CFLAGS"
  1296     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1297     AC_TRY_COMPILE([
  1298     int x = 0;
  1299     ],[
  1300     ],[
  1301     have_gcc_preferred_stack_boundary=yes
  1302     ])
  1303     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1304     CFLAGS="$save_CFLAGS"
  1305 
  1306     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1307         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1308     fi
  1309 }
  1310 
  1311 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1312 dnl  This lets us catch things that would fail on a C89 compiler when using
  1313 dnl  a modern GCC.
  1314 CheckDeclarationAfterStatement()
  1315 {
  1316     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1317     have_gcc_declaration_after_statement=no
  1318 
  1319     save_CFLAGS="$CFLAGS"
  1320     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1321     AC_TRY_COMPILE([
  1322     int x = 0;
  1323     ],[
  1324     ],[
  1325     have_gcc_declaration_after_statement=yes
  1326     ])
  1327     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1328     CFLAGS="$save_CFLAGS"
  1329 
  1330     if test x$have_gcc_declaration_after_statement = xyes; then
  1331         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1332     fi
  1333 }
  1334 
  1335 dnl See if GCC's -Wall is supported.
  1336 CheckWarnAll()
  1337 {
  1338     AC_MSG_CHECKING(for GCC -Wall option)
  1339     have_gcc_Wall=no
  1340 
  1341     save_CFLAGS="$CFLAGS"
  1342     CFLAGS="$save_CFLAGS -Wall"
  1343     AC_TRY_COMPILE([
  1344     int x = 0;
  1345     ],[
  1346     ],[
  1347     have_gcc_Wall=yes
  1348     ])
  1349     AC_MSG_RESULT($have_gcc_Wall)
  1350     CFLAGS="$save_CFLAGS"
  1351 
  1352     if test x$have_gcc_Wall = xyes; then
  1353         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1354 
  1355         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1356         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1357         need_gcc_Wno_multichar=no
  1358         case "$host" in
  1359             *-*-haiku*)
  1360                 need_gcc_Wno_multichar=yes
  1361                 ;;
  1362         esac
  1363         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1364         if test x$need_gcc_Wno_multichar = xyes; then
  1365             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1366         fi
  1367     fi
  1368 }
  1369 
  1370 dnl Check for Wayland
  1371 CheckWayland()
  1372 {
  1373     AC_ARG_ENABLE(video-wayland,
  1374 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1375                   ,enable_video_wayland=yes)
  1376 
  1377     AC_ARG_ENABLE(video-wayland-qt-touch,
  1378 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1379                   ,enable_video_wayland_qt_touch=yes)
  1380 
  1381     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1382         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1383         AC_MSG_CHECKING(for Wayland support)
  1384         video_wayland=no
  1385         if  test x$PKG_CONFIG != xno && \
  1386             test x$video_opengl_egl = xyes && \
  1387             test x$video_opengles_v2 = xyes; then
  1388             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1389                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1390                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1391                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1392                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1393                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1394                 video_wayland=yes
  1395             fi
  1396         fi
  1397         AC_MSG_RESULT($video_wayland)
  1398 
  1399         if test x$video_wayland = xyes; then
  1400             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1401             if test x$enable_video_wayland_qt_touch = xyes; then
  1402                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1403             fi
  1404 
  1405             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1"
  1406 
  1407             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1408             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1409             AC_ARG_ENABLE(wayland-shared,
  1410 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1411                           , enable_wayland_shared=maybe)
  1412 
  1413             dnl FIXME: Do BSD and OS X need special cases?
  1414             case "$host" in
  1415                 *)
  1416                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1417                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1418                     if test x$wayland_egl_lib = x; then
  1419                         dnl This works in Ubuntu 13.10, maybe others
  1420                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1421                     fi
  1422                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1423                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1424                     ;;
  1425             esac
  1426 
  1427             if test x$enable_wayland_shared = xmaybe; then
  1428                 enable_wayland_shared=yes
  1429             fi
  1430             if test x$have_loadso != xyes && \
  1431                test x$enable_wayland_shared = xyes; then
  1432                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1433                 enable_wayland_shared=no
  1434             fi
  1435             if test x$have_loadso = xyes && \
  1436                test x$enable_wayland_shared = xyes && \
  1437                test x$wayland_client_lib != x && \
  1438                test x$wayland_egl_lib != x && \
  1439                test x$wayland_cursor_lib != x && \
  1440                test x$xkbcommon_lib != x; then
  1441                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1442                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1443                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1444                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1445                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1446                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1447                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1448                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1449                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1450             else
  1451                 enable_wayland_shared=no
  1452                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1453                 SUMMARY_video="${SUMMARY_video} wayland"
  1454             fi
  1455             have_video=yes
  1456         fi
  1457     fi
  1458 }
  1459 
  1460 dnl Check for Mir
  1461 CheckMir()
  1462 {
  1463     AC_ARG_ENABLE(video-mir,
  1464 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1465                   ,enable_video_mir=yes)
  1466 
  1467     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1468         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1469         AC_MSG_CHECKING(for Mir support)
  1470         video_mir=no
  1471         if test x$PKG_CONFIG != xno; then
  1472             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1473                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1474                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1475                 save_CFLAGS="$CFLAGS"
  1476                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1477 
  1478                 dnl This will disable Mir if >= v0.26 is not available
  1479                 AC_TRY_COMPILE([
  1480                 #include <mir_toolkit/mir_client_library.h>
  1481                 ],[
  1482                     MirWindowAttrib attrib = mir_window_attrib_state
  1483                 ],[
  1484                 video_mir=yes
  1485                 ])
  1486                 CFLAGS="$save_CFLAGS"
  1487             fi
  1488         fi
  1489         AC_MSG_RESULT($video_mir)
  1490 
  1491         if test x$video_mir = xyes; then
  1492             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1493             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1494             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1495             AC_ARG_ENABLE(mir-shared,
  1496 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1497                           , enable_mir_shared=maybe)
  1498 
  1499             dnl FIXME: Do BSD and OS X need special cases?
  1500             case "$host" in
  1501                 *)
  1502                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1503                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1504                     ;;
  1505             esac
  1506 
  1507             if test x$enable_mir_shared = xmaybe; then
  1508                 enable_mir_shared=yes
  1509             fi
  1510             if test x$have_loadso != xyes && \
  1511                test x$enable_mir_shared = xyes; then
  1512                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1513                 enable_mir_shared=no
  1514             fi
  1515             if test x$have_loadso = xyes && \
  1516                test x$enable_mir_shared = xyes && \
  1517                test x$mirclient_lib != x && \
  1518                test x$xkbcommon_lib != x; then
  1519                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1520                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1521                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1522                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1523                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1524             else
  1525                 enable_mir_shared=no
  1526                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1527                 SUMMARY_video="${SUMMARY_video} mir"
  1528             fi
  1529             have_video=yes
  1530         fi
  1531     fi
  1532 }
  1533 
  1534 dnl Check for Native Client stuff
  1535 CheckNativeClient()
  1536 {
  1537         AC_TRY_COMPILE([
  1538           #if !defined(__native_client__)
  1539           #error "NO NACL"
  1540           #endif
  1541         ],[
  1542         ],[
  1543         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1544         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1545         AC_DEFINE(HAVE_POW, 1, [ ])
  1546         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1547         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1548         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1549 
  1550         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1551 
  1552         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1553         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1554         SUMMARY_audio="${SUMMARY_audio} nacl"
  1555         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1556         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1557         ])
  1558 }
  1559 
  1560 
  1561 CheckRPI()
  1562 {
  1563     AC_ARG_ENABLE(video-rpi,
  1564 AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
  1565                   , enable_video_rpi=yes)
  1566     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
  1567         if test x$ARCH = xnetbsd; then
  1568             RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  1569             RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
  1570         else
  1571             RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  1572             RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
  1573         fi
  1574 
  1575         # Save the original compiler flags and libraries
  1576         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1577 
  1578         # Add the Raspberry Pi compiler flags and libraries
  1579         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_LDFLAGS"
  1580 
  1581         AC_MSG_CHECKING(for Raspberry Pi)
  1582         have_video_rpi=no
  1583         AC_TRY_LINK([
  1584           #include <bcm_host.h>
  1585         ],[
  1586           bcm_host_init();
  1587         ],[
  1588         have_video_rpi=yes
  1589         ],[
  1590         ])
  1591         AC_MSG_RESULT($have_video_rpi)
  1592 
  1593         # Restore the compiler flags and libraries
  1594         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1595         
  1596         if test x$have_video_rpi = xyes; then
  1597             CFLAGS="$CFLAGS $RPI_CFLAGS"
  1598             SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  1599             EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  1600             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_LDFLAGS"
  1601             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  1602             AC_DEFINE(SDL_VIDEO_DRIVER_RPI, 1, [ ])
  1603             SUMMARY_video="${SUMMARY_video} rpi"
  1604         fi
  1605     fi
  1606 }
  1607 
  1608 dnl Find the X11 include and library directories
  1609 CheckX11()
  1610 {
  1611     AC_ARG_ENABLE(video-x11,
  1612 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1613                   , enable_video_x11=yes)
  1614     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1615         case "$host" in
  1616             *-*-darwin*)
  1617                 # This isn't necessary for X11, but fixes GLX detection
  1618                 if test "x$x_includes" = xNONE && \
  1619                    test "x$x_libraries" = xNONE && \
  1620                    test -d /usr/X11R6/include && \
  1621                    test -d /usr/X11R6/lib; then
  1622                     x_includes="/usr/X11R6/include"
  1623                     x_libraries="/usr/X11R6/lib"
  1624                 fi
  1625                 ;;
  1626         esac
  1627         AC_PATH_X
  1628         AC_PATH_XTRA
  1629         if test x$have_x = xyes; then
  1630             AC_ARG_ENABLE(x11-shared,
  1631 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1632                           , enable_x11_shared=maybe)
  1633 
  1634             case "$host" in
  1635                 *-*-darwin*)
  1636                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1637                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1638                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1639                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1640                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1641                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1642                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1643                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1644                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1645                     ;;
  1646                 *-*-openbsd*)
  1647                     x11_lib='libX11.so'
  1648                     x11ext_lib='libXext.so'
  1649                     xcursor_lib='libXcursor.so'
  1650                     xinerama_lib='libXinerama.so'
  1651                     xinput_lib='libXi.so'
  1652                     xrandr_lib='libXrandr.so'
  1653                     xrender_lib='libXrender.so'
  1654                     xss_lib='libXss.so'
  1655                     xvidmode_lib='libXxf86vm.so'
  1656                     ;;
  1657                 *)
  1658                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1659                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1660                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1661                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1662                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1663                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1664                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1665                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1666                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1667                     ;;
  1668             esac
  1669 
  1670             if test x$ac_cv_func_shmat != xyes; then
  1671                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1672             fi
  1673             CFLAGS="$CFLAGS $X_CFLAGS"
  1674             LDFLAGS="$LDFLAGS $X_LIBS"
  1675 
  1676             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1677                             have_xext_h_hdr=yes,
  1678                             have_xext_h_hdr=no,
  1679                             [#include <X11/Xlib.h>
  1680                              #include <X11/Xproto.h>
  1681                             ])
  1682             if test x$have_xext_h_hdr != xyes; then
  1683                AC_MSG_ERROR([
  1684 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1685                ])
  1686             fi
  1687 
  1688             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1689             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1690             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1691 
  1692             # Needed so SDL applications can include SDL_syswm.h
  1693             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1694 
  1695             if test x$enable_x11_shared = xmaybe; then
  1696                 enable_x11_shared=yes
  1697             fi
  1698             if test x$have_loadso != xyes && \
  1699                test x$enable_x11_shared = xyes; then
  1700                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1701                 enable_x11_shared=no
  1702             fi
  1703             if test x$have_loadso = xyes && \
  1704                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1705                 echo "-- dynamic libX11 -> $x11_lib"
  1706                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1707                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1708                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1709                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1710             else
  1711                 enable_x11_shared=no
  1712                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1713                 SUMMARY_video="${SUMMARY_video} x11"
  1714             fi
  1715             have_video=yes
  1716 
  1717             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1718             have_const_param_XextAddDisplay=no
  1719             AC_TRY_COMPILE([
  1720               #include <X11/Xlib.h>
  1721               #include <X11/Xproto.h>
  1722               #include <X11/extensions/Xext.h>
  1723               #include <X11/extensions/extutil.h>
  1724               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1725             ],[
  1726             ],[
  1727             have_const_param_XextAddDisplay=yes
  1728             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1729             ])
  1730             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1731 
  1732             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1733             AC_MSG_CHECKING([for XGenericEvent])
  1734             have_XGenericEvent=no
  1735             AC_TRY_COMPILE([
  1736               	#include <X11/Xlib.h>
  1737             ],[
  1738 Display *display;
  1739 XEvent event;
  1740 XGenericEventCookie *cookie = &event.xcookie;
  1741 XNextEvent(display, &event);
  1742 XGetEventData(display, cookie);
  1743 XFreeEventData(display, cookie);
  1744             ],[
  1745                 have_XGenericEvent=yes
  1746                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1747             ])
  1748             AC_MSG_RESULT($have_XGenericEvent)
  1749 
  1750             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1751 
  1752             AC_ARG_ENABLE(video-x11-xcursor,
  1753 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1754                             , enable_video_x11_xcursor=yes)
  1755             if test x$enable_video_x11_xcursor = xyes; then
  1756                 definitely_enable_video_x11_xcursor=no
  1757                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1758                                 have_xcursor_h_hdr=yes,
  1759                                 have_xcursor_h_hdr=no,
  1760                                 [#include <X11/Xlib.h>
  1761                                 ])
  1762                 if test x$have_xcursor_h_hdr = xyes; then
  1763                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1764                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1765                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1766                         definitely_enable_video_x11_xcursor=yes
  1767                     else
  1768                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1769                         if test x$have_xcursor_lib = xyes ; then
  1770                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1771                             definitely_enable_video_x11_xcursor=yes
  1772                         fi
  1773                     fi
  1774                 fi
  1775             fi
  1776             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1777                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1778                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1779             fi
  1780             AC_ARG_ENABLE(video-x11-xdbe,
  1781 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1782                             , enable_video_x11_xdbe=yes)
  1783             if test x$enable_video_x11_xdbe = xyes; then
  1784                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1785                                 have_dbe_h_hdr=yes,
  1786                                 have_dbe_h_hdr=no,
  1787                                 [#include <X11/Xlib.h>
  1788                                 ])
  1789                 if test x$have_dbe_h_hdr = xyes; then
  1790                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1791                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1792                 fi
  1793             fi
  1794             AC_ARG_ENABLE(video-x11-xinerama,
  1795 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1796                             , enable_video_x11_xinerama=yes)
  1797             if test x$enable_video_x11_xinerama = xyes; then
  1798                 definitely_enable_video_x11_xinerama=no
  1799                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1800                                 have_xinerama_h_hdr=yes,
  1801                                 have_xinerama_h_hdr=no,
  1802                                 [#include <X11/Xlib.h>
  1803                                 ])
  1804                 if test x$have_xinerama_h_hdr = xyes; then
  1805                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1806                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1807                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1808                         definitely_enable_video_x11_xinerama=yes
  1809                     else
  1810                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1811                         if test x$have_xinerama_lib = xyes ; then
  1812                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1813                             definitely_enable_video_x11_xinerama=yes
  1814                         fi
  1815                     fi
  1816                 fi
  1817             fi
  1818             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1819                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1820                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1821             fi
  1822             AC_ARG_ENABLE(video-x11-xinput,
  1823 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1824                             , enable_video_x11_xinput=yes)
  1825             if test x$enable_video_x11_xinput = xyes; then
  1826                 definitely_enable_video_x11_xinput=no
  1827                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1828                                 have_xinput_h_hdr=yes,
  1829                                 have_xinput_h_hdr=no,
  1830                                 [#include <X11/Xlib.h>
  1831                                 ])
  1832                 if test x$have_xinput_h_hdr = xyes; then
  1833                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1834                         echo "-- dynamic libXi -> $xinput_lib"
  1835                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1836                         definitely_enable_video_x11_xinput=yes
  1837                     else
  1838                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1839                         if test x$have_xinput_lib = xyes ; then
  1840                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1841                             definitely_enable_video_x11_xinput=yes
  1842                         fi
  1843                     fi
  1844                 fi
  1845             fi
  1846             if test x$definitely_enable_video_x11_xinput = xyes; then
  1847                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1848                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1849                 AC_MSG_CHECKING(for xinput2 multitouch)
  1850             	have_xinput2_multitouch=no
  1851             	AC_TRY_COMPILE([
  1852               		#include <X11/Xlib.h>
  1853              		#include <X11/Xproto.h>
  1854 			#include <X11/extensions/XInput2.h>
  1855             	],[
  1856 int event_type = XI_TouchBegin;
  1857 XITouchClassInfo *t;
  1858             	],[
  1859             	have_xinput2_multitouch=yes
  1860             	AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1861                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1862             	])
  1863             	AC_MSG_RESULT($have_xinput2_multitouch)
  1864             fi
  1865             AC_ARG_ENABLE(video-x11-xrandr,
  1866 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1867                             , enable_video_x11_xrandr=yes)
  1868             if test x$enable_video_x11_xrandr = xyes; then
  1869                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1870                 definitely_enable_video_x11_xrandr=no
  1871                 have_xrandr_h_hdr=no
  1872                 AC_TRY_COMPILE([
  1873                 #include <X11/Xlib.h>
  1874                 #include <X11/extensions/Xrandr.h>
  1875                 ],[
  1876                 XRRScreenResources *res = NULL;
  1877                 ],[
  1878                 have_xrandr_h_hdr=yes
  1879                 ])
  1880                 if test x$have_xrandr_h_hdr = xyes; then
  1881                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1882                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1883                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1884                         definitely_enable_video_x11_xrandr=yes
  1885                     else
  1886                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1887                         if test x$have_xrandr_lib = xyes ; then
  1888                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1889                             definitely_enable_video_x11_xrandr=yes
  1890                         fi
  1891                     fi
  1892                 fi
  1893             fi
  1894             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1895                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1896                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1897             fi
  1898             AC_ARG_ENABLE(video-x11-scrnsaver,
  1899 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1900                             , enable_video_x11_scrnsaver=yes)
  1901             if test x$enable_video_x11_scrnsaver = xyes; then
  1902                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1903                                 have_scrnsaver_h_hdr=yes,
  1904                                 have_scrnsaver_h_hdr=no,
  1905                                 [#include <X11/Xlib.h>
  1906                                 ])
  1907                 if test x$have_scrnsaver_h_hdr = xyes; then
  1908                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1909                         echo "-- dynamic libXss -> $xss_lib"
  1910                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1911                         definitely_enable_video_x11_scrnsaver=yes
  1912                     else
  1913                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1914                         if test x$have_xss_lib = xyes ; then
  1915                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1916                             definitely_enable_video_x11_scrnsaver=yes
  1917                         fi
  1918                     fi
  1919                 fi
  1920             fi
  1921             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1922                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1923                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1924             fi
  1925             AC_ARG_ENABLE(video-x11-xshape,
  1926 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1927                             , enable_video_x11_xshape=yes)
  1928             if test x$enable_video_x11_xshape = xyes; then
  1929                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1930                                 have_shape_h_hdr=yes,
  1931                                 have_shape_h_hdr=no,
  1932                                 [#include <X11/Xlib.h>
  1933                                 ])
  1934                 if test x$have_shape_h_hdr = xyes; then
  1935                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1936                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1937                 fi
  1938             fi
  1939             AC_ARG_ENABLE(video-x11-vm,
  1940 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1941                             , enable_video_x11_vm=yes)
  1942             if test x$enable_video_x11_vm = xyes; then
  1943                 definitely_enable_video_x11_vm=no
  1944                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1945                                 have_vm_h_hdr=yes,
  1946                                 have_vm_h_hdr=no,
  1947                                 [#include <X11/Xlib.h>
  1948                                 ])
  1949                 if test x$have_vm_h_hdr = xyes; then
  1950                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1951                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1952                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1953                         definitely_enable_video_x11_vm=yes
  1954                     else
  1955                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1956                         if test x$have_vm_lib = xyes ; then
  1957                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1958                             definitely_enable_video_x11_vm=yes
  1959                         fi
  1960                     fi
  1961                 fi
  1962             fi
  1963             if test x$definitely_enable_video_x11_vm = xyes; then
  1964                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1965                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1966             fi
  1967         fi
  1968     fi
  1969 }
  1970 
  1971 dnl Set up the Vivante video driver if enabled
  1972 CheckVivanteVideo()
  1973 {
  1974     AC_ARG_ENABLE(video-vivante,
  1975 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1976                   , enable_video_vivante=yes)
  1977     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1978         AC_MSG_CHECKING(for Vivante VDK API)
  1979         have_vivante_vdk=no
  1980         AC_TRY_COMPILE([
  1981           #define LINUX
  1982           #define EGL_API_FB
  1983           #include <gc_vdk.h>
  1984         ],[
  1985         ],[
  1986         have_vivante_vdk=yes
  1987         ])
  1988         AC_MSG_RESULT($have_vivante_vdk)
  1989 
  1990         AC_MSG_CHECKING(for Vivante FB API)
  1991         have_vivante_egl=no
  1992         AC_TRY_COMPILE([
  1993           #define LINUX
  1994           #define EGL_API_FB
  1995           #include <EGL/eglvivante.h>
  1996         ],[
  1997         ],[
  1998         have_vivante_egl=yes
  1999         ])
  2000         AC_MSG_RESULT($have_vivante_egl)
  2001 
  2002         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  2003             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  2004             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  2005             if test x$have_vivante_vdk = xyes; then
  2006                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  2007                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  2008             fi
  2009             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  2010             SUMMARY_video="${SUMMARY_video} vivante"
  2011             have_video=yes
  2012         fi
  2013     fi
  2014 }
  2015 
  2016 dnl Set up the Haiku video driver if enabled
  2017 CheckHaikuVideo()
  2018 {
  2019     if test x$enable_video = xyes; then
  2020         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  2021         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  2022         have_video=yes
  2023         SUMMARY_video="${SUMMARY_video} haiku"
  2024     fi
  2025 }
  2026 
  2027 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  2028 CheckCOCOA()
  2029 {
  2030     AC_ARG_ENABLE(video-cocoa,
  2031 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  2032                   , enable_video_cocoa=yes)
  2033     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  2034         save_CFLAGS="$CFLAGS"
  2035         dnl Work around that we don't have Objective-C support in autoconf
  2036         CFLAGS="$CFLAGS -x objective-c"
  2037         AC_MSG_CHECKING(for Cocoa framework)
  2038         have_cocoa=no
  2039         AC_TRY_COMPILE([
  2040           #import <Cocoa/Cocoa.h>
  2041         ],[
  2042         ],[
  2043         have_cocoa=yes
  2044         ])
  2045         AC_MSG_RESULT($have_cocoa)
  2046         CFLAGS="$save_CFLAGS"
  2047         if test x$have_cocoa = xyes; then
  2048             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2049             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2050             SUMMARY_video="${SUMMARY_video} cocoa"
  2051             have_video=yes
  2052         fi
  2053     fi
  2054 }
  2055 
  2056 dnl Find DirectFB
  2057 CheckDirectFB()
  2058 {
  2059     AC_ARG_ENABLE(video-directfb,
  2060 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2061                   , enable_video_directfb=no)
  2062     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2063         video_directfb=no
  2064 
  2065         DIRECTFB_REQUIRED_VERSION=1.0.0
  2066         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2067         if test x$DIRECTFBCONFIG = xno; then
  2068             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2069             if test x$PKG_CONFIG != xno; then
  2070                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2071                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2072                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2073                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2074                     video_directfb=yes
  2075                 fi
  2076             fi
  2077         else
  2078             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2079             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2080             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2081             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2082             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2083                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2084                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2085                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2086                 video_directfb=yes
  2087             fi
  2088         fi
  2089         if test x$video_directfb = xyes; then
  2090             # SuSE 11.1 installs directfb-config without directfb-devel
  2091             save_CPPFLAGS="$CPPFLAGS"
  2092             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2093             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2094             CPPFLAGS="$save_CPPFLAGS"
  2095             video_directfb=$have_directfb_hdr
  2096         fi
  2097         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2098         AC_MSG_RESULT($video_directfb)
  2099 
  2100         if test x$video_directfb = xyes; then
  2101             AC_ARG_ENABLE(directfb-shared,
  2102 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2103                               , enable_directfb_shared=yes)
  2104 
  2105             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2106             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  2107             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2108             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2109 
  2110             AC_MSG_CHECKING(for directfb dynamic loading support)
  2111             directfb_shared=no
  2112             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2113             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2114 AC_MSG_WARN("directfb $directfb_lib")
  2115             if test x$have_loadso != xyes && \
  2116                test x$enable_directfb_shared = xyes; then
  2117                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2118             fi
  2119             if test x$have_loadso = xyes && \
  2120                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2121                 directfb_shared=yes
  2122                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2123                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2124                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2125             else
  2126                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2127                 SUMMARY_video="${SUMMARY_video} directfb"
  2128             fi
  2129             AC_MSG_RESULT($directfb_shared)
  2130             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2131             have_video=yes
  2132         fi
  2133     fi
  2134 }
  2135 
  2136 dnl Find KMSDRM
  2137 CheckKMSDRM()
  2138 {
  2139     AC_ARG_ENABLE(video-kmsdrm,
  2140 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2141                   , enable_video_kmsdrm=no)
  2142 
  2143     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2144         video_kmsdrm=no
  2145         libdrm_avail=no
  2146         libgbm_avail=no
  2147 
  2148         LIBDRM_REQUIRED_VERSION=2.4.46
  2149         LIBGBM_REQUIRED_VERSION=9.0.0
  2150 
  2151         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2152         if test x$PKG_CONFIG != xno; then
  2153             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2154                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2155                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2156                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2157                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2158                     libdrm_avail=yes
  2159                 fi
  2160                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2161                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2162                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2163                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2164                     libgbm_avail=yes
  2165                 fi
  2166                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2167                     video_kmsdrm=yes
  2168                 fi
  2169  
  2170                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2171                 AC_MSG_RESULT($libdrm_avail)
  2172                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2173                 AC_MSG_RESULT($libgbm_avail)
  2174 
  2175                 if test x$video_kmsdrm = xyes; then
  2176                     AC_ARG_ENABLE(kmsdrm-shared,
  2177 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2178                               , enable_kmsdrm_shared=yes)
  2179 
  2180                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2181                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2182                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2183 
  2184                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2185                     kmsdrm_shared=no
  2186                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2187                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2188                     if test x$have_loadso != xyes && \
  2189                        test x$enable_kmsdrm_shared = xyes; then
  2190                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2191                     fi
  2192                     if test x$have_loadso = xyes && \
  2193                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2194                         kmsdrm_shared=yes
  2195                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2196                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2197                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2198                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2199                     else
  2200                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2201                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2202                     fi
  2203                     AC_MSG_RESULT($kmsdrm_shared)
  2204                     have_video=yes
  2205                 fi
  2206             fi
  2207         fi
  2208     fi
  2209 }
  2210 
  2211 dnl rcg04172001 Set up the Null video driver.
  2212 CheckDummyVideo()
  2213 {
  2214     AC_ARG_ENABLE(video-dummy,
  2215 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2216                   , enable_video_dummy=yes)
  2217     if test x$enable_video_dummy = xyes; then
  2218         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2219         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2220         have_video=yes
  2221         SUMMARY_video="${SUMMARY_video} dummy"
  2222     fi
  2223 }
  2224 
  2225 dnl Set up the QNX video driver if enabled
  2226 CheckQNXVideo()
  2227 {
  2228     if test x$enable_video = xyes; then
  2229         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2230         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2231         have_video=yes
  2232         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2233         SUMMARY_video="${SUMMARY_video} qnx"
  2234     fi
  2235 }
  2236 
  2237 dnl Set up the QNX audio driver if enabled
  2238 CheckQNXAudio()
  2239 {
  2240     if test x$enable_audio = xyes; then
  2241         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2242         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2243         have_audio=yes
  2244         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2245         SUMMARY_audio="${SUMMARY_audio} qsa"
  2246     fi
  2247 }
  2248 
  2249 dnl Check to see if OpenGL support is desired
  2250 AC_ARG_ENABLE(video-opengl,
  2251 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2252               , enable_video_opengl=yes)
  2253 
  2254 dnl Find OpenGL
  2255 CheckOpenGLX11()
  2256 {
  2257     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2258         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2259         video_opengl=no
  2260         AC_TRY_COMPILE([
  2261          #include <GL/gl.h>
  2262          #include <GL/glx.h>
  2263         ],[
  2264         ],[
  2265         video_opengl=yes
  2266         ])
  2267         AC_MSG_RESULT($video_opengl)
  2268         if test x$video_opengl = xyes; then
  2269             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2270             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2271             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2272             SUMMARY_video="${SUMMARY_video} opengl"
  2273         fi
  2274     fi
  2275 }
  2276 
  2277 dnl Check to see if OpenGL ES support is desired
  2278 AC_ARG_ENABLE(video-opengles,
  2279 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2280               , enable_video_opengles=yes)
  2281 AC_ARG_ENABLE(video-opengles1,
  2282 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2283               , enable_video_opengles1=yes)
  2284 AC_ARG_ENABLE(video-opengles2,
  2285 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2286               , enable_video_opengles2=yes)
  2287 
  2288 dnl Find OpenGL ES
  2289 CheckOpenGLESX11()
  2290 {
  2291     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2292         AC_MSG_CHECKING(for EGL support)
  2293         video_opengl_egl=no
  2294         AC_TRY_COMPILE([
  2295           #define LINUX
  2296           #define EGL_API_FB
  2297           #include <EGL/egl.h>
  2298           #include <EGL/eglext.h>
  2299         ],[
  2300         ],[
  2301         video_opengl_egl=yes
  2302         ])
  2303         AC_MSG_RESULT($video_opengl_egl)
  2304         if test x$video_opengl_egl = xyes; then
  2305             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2306         fi
  2307             
  2308         if test x$enable_video_opengles1 = xyes; then
  2309             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2310             video_opengles_v1=no
  2311             AC_TRY_COMPILE([
  2312              #include <GLES/gl.h>
  2313              #include <GLES/glext.h>
  2314             ],[
  2315             ],[
  2316             video_opengles_v1=yes
  2317             ])
  2318             AC_MSG_RESULT($video_opengles_v1)
  2319             if test x$video_opengles_v1 = xyes; then
  2320                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2321                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2322                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2323             fi
  2324         fi
  2325         
  2326         if test x$enable_video_opengles2 = xyes; then
  2327             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2328             video_opengles_v2=no
  2329             AC_TRY_COMPILE([
  2330              #include <GLES2/gl2.h>
  2331              #include <GLES2/gl2ext.h>
  2332             ],[
  2333             ],[
  2334             video_opengles_v2=yes
  2335             ])
  2336             AC_MSG_RESULT($video_opengles_v2)
  2337             if test x$video_opengles_v2 = xyes; then
  2338                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2339                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2340                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2341             fi
  2342         fi
  2343     fi
  2344 }
  2345 
  2346 dnl Check for Windows OpenGL
  2347 CheckWINDOWSGL()
  2348 {
  2349     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2350         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2351         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2352         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2353         SUMMARY_video="${SUMMARY_video} opengl"
  2354     fi
  2355 }
  2356 
  2357 dnl Check for Windows OpenGL
  2358 CheckWINDOWSGLES()
  2359 {
  2360     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2361 
  2362         AC_MSG_CHECKING(for EGL support)
  2363         video_opengl_egl=no
  2364         AC_TRY_COMPILE([
  2365          #include <EGL/egl.h>
  2366         ],[
  2367         ],[
  2368         video_opengl_egl=yes
  2369         ])
  2370         AC_MSG_RESULT($video_opengl_egl)
  2371         if test x$video_opengl_egl = xyes; then
  2372             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2373             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2374             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2375         fi
  2376        
  2377         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2378         video_opengles_v2=no
  2379         AC_TRY_COMPILE([
  2380          #include <GLES2/gl2.h>
  2381          #include <GLES2/gl2ext.h>
  2382         ],[
  2383         ],[
  2384         video_opengles_v2=yes
  2385         ])
  2386         AC_MSG_RESULT($video_opengles_v2)
  2387         if test x$video_opengles_v2 = xyes; then
  2388             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2389             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2390             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2391             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2392         fi
  2393     fi
  2394 }
  2395 
  2396 dnl Check for Haiku OpenGL
  2397 CheckHaikuGL()
  2398 {
  2399     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2400         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2401         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2402         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2403         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2404         SUMMARY_video="${SUMMARY_video} opengl"
  2405     fi
  2406 }
  2407 
  2408 dnl Check for MacOS OpenGL
  2409 CheckMacGL()
  2410 {
  2411     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2412         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2413         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2414         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2415         SUMMARY_video="${SUMMARY_video} opengl"
  2416     fi
  2417 }
  2418 
  2419 CheckEmscriptenGLES()
  2420 {
  2421     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2422         AC_MSG_CHECKING(for EGL support)
  2423         video_opengl_egl=no
  2424         AC_TRY_COMPILE([
  2425          #include <EGL/egl.h>
  2426         ],[
  2427         ],[
  2428         video_opengl_egl=yes
  2429         ])
  2430         AC_MSG_RESULT($video_opengl_egl)
  2431         if test x$video_opengl_egl = xyes; then
  2432             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2433         fi
  2434 
  2435         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2436         video_opengles_v2=no
  2437         AC_TRY_COMPILE([
  2438          #include <GLES2/gl2.h>
  2439          #include <GLES2/gl2ext.h>
  2440         ],[
  2441         ],[
  2442         video_opengles_v2=yes
  2443         ])
  2444         AC_MSG_RESULT($video_opengles_v2)
  2445         if test x$video_opengles_v2 = xyes; then
  2446             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2447             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2448             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2449         fi
  2450     fi
  2451 }
  2452 
  2453 dnl Check to see if Vulkan support is desired
  2454 AC_ARG_ENABLE(video-vulkan,
  2455 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2456               , enable_video_vulkan=yes)
  2457 
  2458 dnl Find Vulkan Header
  2459 CheckVulkan()
  2460 {
  2461     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2462         case "$host" in
  2463             *-*-android*)
  2464                 AC_TRY_COMPILE([
  2465                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2466                   #error Vulkan doesn't work on this configuration
  2467                   #endif
  2468                 ],[
  2469                 ],[
  2470                 ],[
  2471                     enable_video_vulkan=no
  2472                 ])
  2473                 ;;
  2474             *-*-darwin*)
  2475                 save_CFLAGS="$CFLAGS"
  2476                 dnl Work around that we don't have Objective-C support in autoconf
  2477                 CFLAGS="$CFLAGS -x objective-c"
  2478                 AC_TRY_COMPILE([
  2479                   #include <Cocoa/Cocoa.h>
  2480                   #include <Metal/Metal.h>
  2481                   #include <QuartzCore/CAMetalLayer.h>
  2482 
  2483                   #if !TARGET_CPU_X86_64
  2484                   #error Vulkan doesn't work on this configuration
  2485                   #endif
  2486                 ],[
  2487                 ],[
  2488                 ],[
  2489                     enable_video_vulkan=no
  2490                 ])
  2491                 CFLAGS="$save_CFLAGS"
  2492                 ;;
  2493             *)
  2494                 ;;
  2495         esac
  2496         if test x$enable_video_vulkan = xno; then
  2497             # For reasons I am totally unable to see, I get an undefined macro error if
  2498             # I put this in the AC_TRY_COMPILE.
  2499             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2500         fi
  2501     fi
  2502     if test x$enable_video_vulkan = xyes; then
  2503         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2504         SUMMARY_video="${SUMMARY_video} vulkan"
  2505     fi
  2506 }
  2507 
  2508 dnl See if we can use the new unified event interface in Linux 2.4
  2509 CheckInputEvents()
  2510 {
  2511     dnl Check for Linux 2.4 unified input event interface support
  2512         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2513         use_input_events=no
  2514         AC_TRY_COMPILE([
  2515           #include <linux/input.h>
  2516         ],[
  2517           #ifndef EVIOCGNAME
  2518           #error EVIOCGNAME() ioctl not available
  2519           #endif
  2520         ],[
  2521         use_input_events=yes
  2522         ])
  2523         AC_MSG_RESULT($use_input_events)
  2524         if test x$use_input_events = xyes; then
  2525             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2526             SUMMARY_input="${SUMMARY_input} linuxev"
  2527         fi
  2528 }
  2529 
  2530 dnl See if we can use the kernel kd.h header
  2531 CheckInputKD()
  2532 {
  2533 
  2534     AC_MSG_CHECKING(for Linux kd.h)
  2535     use_input_kd=no
  2536     AC_TRY_COMPILE([
  2537       #include <linux/kd.h>
  2538       #include <linux/keyboard.h>
  2539     ],[
  2540         struct kbentry kbe;
  2541         kbe.kb_table = KG_CTRL;
  2542         ioctl(0, KDGKBENT, &kbe);
  2543     ],[
  2544     use_input_kd=yes
  2545     ])
  2546     AC_MSG_RESULT($use_input_kd)
  2547     if test x$use_input_kd = xyes; then
  2548         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2549         SUMMARY_input="${SUMMARY_input} linuxkd"
  2550     fi
  2551 }
  2552 
  2553 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2554 CheckLibUDev()
  2555 {
  2556     AC_ARG_ENABLE(libudev,
  2557 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2558                         , enable_libudev=yes)
  2559     if test x$enable_libudev = xyes; then
  2560         AC_CHECK_HEADER(libudev.h,
  2561                         have_libudev_h_hdr=yes,
  2562                         have_libudev_h_hdr=no)
  2563         if test x$have_libudev_h_hdr = xyes; then
  2564             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2565 
  2566             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2567             if test x$udev_lib != x; then
  2568                 echo "-- dynamic udev -> $udev_lib"
  2569                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2570             fi
  2571         fi
  2572     fi
  2573 }
  2574 
  2575 dnl See if the platform offers libdbus for various IPC techniques.
  2576 CheckDBus()
  2577 {
  2578     AC_ARG_ENABLE(dbus,
  2579 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2580                         , enable_dbus=yes)
  2581     if test x$enable_dbus = xyes; then
  2582         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2583         if test x$PKG_CONFIG != xno; then
  2584             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2585             save_CFLAGS="$CFLAGS"
  2586             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2587             AC_CHECK_HEADER(dbus/dbus.h,
  2588                             have_dbus_dbus_h_hdr=yes,
  2589                             have_dbus_dbus_h_hdr=no)
  2590             CFLAGS="$save_CFLAGS"
  2591             if test x$have_dbus_dbus_h_hdr = xyes; then
  2592                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2593                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2594                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2595             fi
  2596         fi
  2597     fi
  2598 }
  2599 
  2600 dnl See if the platform wanna IME support.
  2601 CheckIME()
  2602 {
  2603     AC_ARG_ENABLE(ime,
  2604 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2605                   , enable_ime=yes)
  2606     if test x$enable_ime = xyes; then
  2607         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2608             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2609     fi
  2610 }
  2611 
  2612 dnl See if the platform has libibus IME support.
  2613 CheckIBus()
  2614 {
  2615     AC_ARG_ENABLE(ibus,
  2616 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2617                   , enable_ibus=yes)
  2618     if test x$enable_ibus = xyes; then
  2619         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2620         if test x$PKG_CONFIG != xno; then
  2621             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2622             save_CFLAGS="$CFLAGS"
  2623             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2624             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2625                             have_ibus_ibus_h_hdr=yes,
  2626                             have_ibus_ibus_h_hdr=no)
  2627             AC_CHECK_HEADER(sys/inotify.h,
  2628                             have_inotify_inotify_h_hdr=yes,
  2629                             have_inotify_inotify_h_hdr=no)
  2630             CFLAGS="$save_CFLAGS"
  2631             if test x$have_ibus_ibus_h_hdr = xyes; then
  2632                 if test x$enable_ime != xyes; then
  2633                     AC_MSG_WARN([IME support is required for IBus.])
  2634                     have_ibus_ibus_h_hdr=no
  2635                 elif test x$enable_dbus != xyes; then
  2636                     AC_MSG_WARN([DBus support is required for IBus.])
  2637                     have_ibus_ibus_h_hdr=no
  2638                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2639                     AC_MSG_WARN([INotify support is required for IBus.])
  2640                     have_ibus_ibus_h_hdr=no
  2641                 else
  2642                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2643                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2644                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2645                fi
  2646             fi
  2647         fi
  2648     fi
  2649 }
  2650 
  2651 dnl See if the platform has fcitx IME support.
  2652 CheckFcitx()
  2653 {
  2654     AC_ARG_ENABLE(fcitx,
  2655 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2656                   , enable_fcitx=yes)
  2657     if test x$enable_fcitx = xyes; then
  2658         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2659         if test x$PKG_CONFIG != xno; then
  2660             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2661             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2662             AC_CHECK_HEADER(fcitx/frontend.h,
  2663                             have_fcitx_frontend_h_hdr=yes,
  2664                             have_fcitx_frontend_h_hdr=no)
  2665             CFLAGS="$save_CFLAGS"
  2666             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2667                 if test x$enable_ime != xyes; then
  2668                     AC_MSG_WARN([IME support is required for fcitx.])
  2669                     have_fcitx_frontend_h_hdr=no
  2670                 elif test x$enable_dbus != xyes; then
  2671                     AC_MSG_WARN([DBus support is required for fcitx.])
  2672                     have_fcitx_frontend_h_hdr=no
  2673                 else
  2674                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2675                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2676                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2677                fi
  2678             fi
  2679         fi
  2680     fi
  2681 }
  2682 
  2683 dnl See if we can use the Touchscreen input library
  2684 CheckTslib()
  2685 {
  2686     AC_ARG_ENABLE(input-tslib,
  2687 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2688                   , enable_input_tslib=yes)
  2689     if test x$enable_input_tslib = xyes; then
  2690         AC_MSG_CHECKING(for Touchscreen library support)
  2691         enable_input_tslib=no
  2692         AC_TRY_COMPILE([
  2693           #include "tslib.h"
  2694         ],[
  2695         ],[
  2696         enable_input_tslib=yes
  2697         ])
  2698         AC_MSG_RESULT($enable_input_tslib)
  2699         if test x$enable_input_tslib = xyes; then
  2700             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2701             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2702             SUMMARY_input="${SUMMARY_input} ts"
  2703         fi
  2704     fi
  2705 }
  2706 
  2707 dnl See what type of thread model to use on Linux and Solaris
  2708 CheckPTHREAD()
  2709 {
  2710     dnl Check for pthread support
  2711     AC_ARG_ENABLE(pthreads,
  2712 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2713                   , enable_pthreads=yes)
  2714     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2715     AC_ARG_ENABLE(pthread-sem,
  2716 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2717                   , enable_pthread_sem=yes)
  2718     case "$host" in
  2719          *-*-android*)
  2720             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2721             pthread_lib=""
  2722             ;;
  2723         *-*-linux*|*-*-uclinux*)
  2724             pthread_cflags="-D_REENTRANT"
  2725             pthread_lib="-lpthread"
  2726             ;;
  2727         *-*-bsdi*)
  2728             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2729             pthread_lib=""
  2730             ;;
  2731         *-*-darwin*)
  2732             pthread_cflags="-D_THREAD_SAFE"
  2733 # causes Carbon.p complaints?
  2734 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2735             ;;
  2736         *-*-freebsd*|*-*-dragonfly*)
  2737             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2738             pthread_lib="-pthread"
  2739             ;;
  2740         *-*-netbsd*)
  2741             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2742             pthread_lib="-lpthread"
  2743             ;;
  2744         *-*-openbsd*)
  2745             pthread_cflags="-D_REENTRANT"
  2746             pthread_lib="-pthread"
  2747             ;;
  2748         *-*-solaris2.9)
  2749             # From Solaris 9+, posix4's preferred name is rt.
  2750             pthread_cflags="-D_REENTRANT"
  2751             pthread_lib="-lpthread -lrt"
  2752             ;;
  2753         *-*-solaris2.10)
  2754             # Solaris 10+ merged pthread into libc.
  2755             pthread_cflags="-D_REENTRANT"
  2756             pthread_lib="-lrt"
  2757             ;;
  2758         *-*-solaris*)
  2759             # Solaris 11+ merged rt into libc.
  2760             pthread_cflags="-D_REENTRANT"
  2761             pthread_lib=""
  2762             ;;
  2763         *-*-sysv5*)
  2764             pthread_cflags="-D_REENTRANT -Kthread"
  2765             pthread_lib=""
  2766             ;;
  2767         *-*-aix*)
  2768             pthread_cflags="-D_REENTRANT -mthreads"
  2769             pthread_lib="-lpthread"
  2770             ;;
  2771         *-*-hpux11*)
  2772             pthread_cflags="-D_REENTRANT"
  2773             pthread_lib="-L/usr/lib -lpthread"
  2774             ;;
  2775         *-*-haiku*)
  2776             pthread_cflags="-D_REENTRANT"
  2777             pthread_lib=""
  2778             ;;
  2779         *-*-nto*)
  2780             pthread_cflags="-D_REENTRANT"
  2781             pthread_lib=""
  2782             ;;
  2783         *)
  2784             pthread_cflags="-D_REENTRANT"
  2785             pthread_lib="-lpthread"
  2786             ;;
  2787     esac
  2788     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2789         # Save the original compiler flags and libraries
  2790         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2791         # Add the pthread compiler flags and libraries
  2792         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2793         # Check to see if we have pthread support on this system
  2794         AC_MSG_CHECKING(for pthreads)
  2795         use_pthreads=no
  2796         AC_TRY_LINK([
  2797          #include <pthread.h>
  2798         ],[
  2799          pthread_attr_t type;
  2800          pthread_attr_init(&type);
  2801         ],[
  2802         use_pthreads=yes
  2803         ])
  2804         AC_MSG_RESULT($use_pthreads)
  2805         # Restore the compiler flags and libraries
  2806         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2807 
  2808         # Do futher testing if we have pthread support...
  2809         if test x$use_pthreads = xyes; then
  2810             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2811             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2812             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2813             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2814 
  2815             # Save the original compiler flags and libraries
  2816             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2817             # Add the pthread compiler flags and libraries
  2818             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2819 
  2820             # Check to see if recursive mutexes are available
  2821             AC_MSG_CHECKING(for recursive mutexes)
  2822             has_recursive_mutexes=no
  2823             if test x$has_recursive_mutexes = xno; then
  2824                 AC_TRY_LINK([
  2825                   #define _GNU_SOURCE 1
  2826                   #include <pthread.h>
  2827                 ],[
  2828                   pthread_mutexattr_t attr;
  2829                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2830                 ],[
  2831                 has_recursive_mutexes=yes
  2832                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2833                 ])
  2834             fi
  2835             if test x$has_recursive_mutexes = xno; then
  2836                 AC_TRY_LINK([
  2837                   #define _GNU_SOURCE 1
  2838                   #include <pthread.h>
  2839                 ],[
  2840                   pthread_mutexattr_t attr;
  2841                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2842                 ],[
  2843                 has_recursive_mutexes=yes
  2844                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2845                 ])
  2846             fi
  2847             AC_MSG_RESULT($has_recursive_mutexes)
  2848 
  2849             # Check to see if pthread semaphore support is missing
  2850             if test x$enable_pthread_sem = xyes; then
  2851                 AC_MSG_CHECKING(for pthread semaphores)
  2852                 have_pthread_sem=no
  2853                 AC_TRY_COMPILE([
  2854                   #include <pthread.h>
  2855                   #include <semaphore.h>
  2856                 ],[
  2857                 ],[
  2858                 have_pthread_sem=yes
  2859                 ])
  2860                 AC_MSG_RESULT($have_pthread_sem)
  2861             fi
  2862             if test x$have_pthread_sem = xyes; then
  2863                 AC_MSG_CHECKING(for sem_timedwait)
  2864                 have_sem_timedwait=no
  2865                 AC_TRY_LINK([
  2866                   #include <pthread.h>
  2867                   #include <semaphore.h>
  2868                 ],[
  2869                   sem_timedwait(NULL, NULL);
  2870                 ],[
  2871                 have_sem_timedwait=yes
  2872                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2873                 ])
  2874                 AC_MSG_RESULT($have_sem_timedwait)
  2875             fi
  2876 
  2877             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2878             if test x$have_pthread_np_h = xyes; then
  2879                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2880             fi
  2881 
  2882             # Check to see if pthread naming is available
  2883             AC_MSG_CHECKING(for pthread_setname_np)
  2884             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2885               has_pthread_setname_np=yes
  2886               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2887             ],[
  2888               has_pthread_setname_np=no
  2889             ])
  2890             AC_MSG_RESULT($has_pthread_setname_np)
  2891 
  2892             AC_MSG_CHECKING(for pthread_set_name_np)
  2893             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2894               has_pthread_set_name_np=yes
  2895               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2896             ],[
  2897               has_pthread_set_name_np=no
  2898             ])
  2899             AC_MSG_RESULT($has_pthread_set_name_np)
  2900 
  2901             # Restore the compiler flags and libraries
  2902             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2903 
  2904             # Basic thread creation functions
  2905             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2906 
  2907             # Semaphores
  2908             # We can fake these with mutexes and condition variables if necessary
  2909             if test x$have_pthread_sem = xyes; then
  2910                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2911             else
  2912                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2913             fi
  2914 
  2915             # Mutexes
  2916             # We can fake these with semaphores if necessary
  2917             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2918 
  2919             # Condition variables
  2920             # We can fake these with semaphores and mutexes if necessary
  2921             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2922 
  2923             # Thread local storage
  2924             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2925 
  2926             have_threads=yes
  2927         fi
  2928     fi
  2929 }
  2930 
  2931 dnl Determine whether the compiler can produce Windows executables
  2932 CheckWINDOWS()
  2933 {
  2934     AC_MSG_CHECKING(Windows compiler)
  2935     have_win32_gcc=no
  2936     AC_TRY_COMPILE([
  2937      #include <windows.h>
  2938     ],[
  2939     ],[
  2940     have_win32_gcc=yes
  2941     ])
  2942     AC_MSG_RESULT($have_win32_gcc)
  2943     if test x$have_win32_gcc != xyes; then
  2944        AC_MSG_ERROR([
  2945 *** Your compiler ($CC) does not produce Windows executables!
  2946        ])
  2947     fi
  2948 
  2949     AC_MSG_CHECKING(Windows CE)
  2950     have_wince=no
  2951     AC_TRY_COMPILE([
  2952 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2953 #error This is not Windows CE
  2954 #endif
  2955     ],[
  2956     ],[
  2957     have_wince=yes
  2958        AC_MSG_ERROR([
  2959 *** Sorry, Windows CE is no longer supported.
  2960        ])
  2961     ])
  2962     AC_MSG_RESULT($have_wince)
  2963 
  2964     # This fixes Windows stack alignment with newer GCC
  2965     CheckStackBoundary
  2966 }
  2967 
  2968 dnl Find the DirectX includes and libraries
  2969 CheckDIRECTX()
  2970 {
  2971     AC_ARG_ENABLE(directx,
  2972 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2973                   , enable_directx=yes)
  2974     if test x$enable_directx = xyes; then
  2975         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2976         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2977         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2978         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2979         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2980         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2981         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2982         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  2983         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  2984         AC_TRY_COMPILE([
  2985 #include <windows.h>
  2986 #include <xinput.h>
  2987 XINPUT_GAMEPAD_EX x1;
  2988         ],[],[have_xinput_gamepadex=yes])
  2989         AC_TRY_COMPILE([
  2990 #include <windows.h>
  2991 #include <xinput.h>
  2992 XINPUT_STATE_EX s1;
  2993         ],[],[have_xinput_stateex=yes])
  2994 
  2995         if test x$have_ddraw = xyes; then
  2996             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  2997         fi
  2998         if test x$have_dinput = xyes; then
  2999             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3000         fi
  3001         if test x$have_dsound = xyes; then
  3002             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3003         fi
  3004         if test x$have_dxgi = xyes; then
  3005             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3006         fi
  3007         if test x$have_xinput = xyes; then
  3008             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3009         fi
  3010         if test x$have_xinput_gamepadex = xyes; then
  3011             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3012         fi
  3013         if test x$have_xinput_stateex = xyes; then
  3014             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3015         fi
  3016 
  3017         SUMMARY_video="${SUMMARY_video} directx"
  3018         SUMMARY_audio="${SUMMARY_audio} directx"
  3019 
  3020         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3021         # FIXME:  ...so force it off for now.
  3022         case "$host" in
  3023             *-*-cygwin*)
  3024             have_dinput=false
  3025             ;;
  3026         esac
  3027     fi
  3028 }
  3029 
  3030 dnl Check for the dlfcn.h interface for dynamically loading objects
  3031 CheckDLOPEN()
  3032 {
  3033     AC_ARG_ENABLE(sdl-dlopen,
  3034 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3035                   , enable_sdl_dlopen=yes)
  3036     if test x$enable_sdl_dlopen = xyes; then
  3037         AC_MSG_CHECKING(for dlopen)
  3038         have_dlopen=no
  3039         AC_TRY_COMPILE([
  3040          #include <dlfcn.h>
  3041         ],[
  3042          void *handle = dlopen("", RTLD_NOW);
  3043          const char *loaderror = (char *) dlerror();
  3044         ],[
  3045         have_dlopen=yes
  3046         ])
  3047         AC_MSG_RESULT($have_dlopen)
  3048 
  3049         if test x$have_dlopen = xyes; then
  3050             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3051                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3052                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3053             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3054             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3055             have_loadso=yes
  3056         fi
  3057     fi
  3058 }
  3059 
  3060 dnl Check for the usbhid(3) library on *BSD
  3061 CheckUSBHID()
  3062 {
  3063     case "$host" in
  3064         *-*-*bsd*)
  3065             if test x$enable_joystick = xyes; then
  3066                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3067                 if test x$have_libusbhid = xyes; then
  3068                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3069                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3070                     USB_LIBS="$USB_LIBS -lusbhid"
  3071                 else
  3072                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3073                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3074                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3075                 fi
  3076                     
  3077                 save_CFLAGS="$CFLAGS"
  3078                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3079 
  3080                 AC_MSG_CHECKING(for usbhid)
  3081                 have_usbhid=no
  3082                 AC_TRY_COMPILE([
  3083                   #include <sys/types.h>
  3084                   #if defined(HAVE_USB_H)
  3085                   #include <usb.h>
  3086                   #endif
  3087                   #ifdef __DragonFly__
  3088                   # include <bus/usb/usb.h>
  3089                   # include <bus/usb/usbhid.h>
  3090                   #else
  3091                   # include <dev/usb/usb.h>
  3092                   # include <dev/usb/usbhid.h>
  3093                   #endif
  3094                   #if defined(HAVE_USBHID_H)
  3095                   #include <usbhid.h>
  3096                   #elif defined(HAVE_LIBUSB_H)
  3097                   #include <libusb.h>
  3098                   #elif defined(HAVE_LIBUSBHID_H)
  3099                   #include <libusbhid.h>
  3100                   #endif
  3101                 ],[
  3102                   struct report_desc *repdesc;
  3103                   struct usb_ctl_report *repbuf;
  3104                   hid_kind_t hidkind;
  3105                 ],[
  3106                 have_usbhid=yes
  3107                 ])
  3108                 AC_MSG_RESULT($have_usbhid)
  3109 
  3110                 if test x$have_usbhid = xyes; then
  3111                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3112                     have_usbhid_ucr_data=no
  3113                     AC_TRY_COMPILE([
  3114                       #include <sys/types.h>
  3115                       #if defined(HAVE_USB_H)
  3116                       #include <usb.h>
  3117                       #endif
  3118                       #ifdef __DragonFly__
  3119                       # include <bus/usb/usb.h>
  3120                       # include <bus/usb/usbhid.h>
  3121                       #else
  3122                       # include <dev/usb/usb.h>
  3123                       # include <dev/usb/usbhid.h>
  3124                       #endif
  3125                       #if defined(HAVE_USBHID_H)
  3126                       #include <usbhid.h>
  3127                       #elif defined(HAVE_LIBUSB_H)
  3128                       #include <libusb.h>
  3129                       #elif defined(HAVE_LIBUSBHID_H)
  3130                       #include <libusbhid.h>
  3131                       #endif
  3132                     ],[
  3133                       struct usb_ctl_report buf;
  3134                       if (buf.ucr_data) { }
  3135                     ],[
  3136                     have_usbhid_ucr_data=yes
  3137                     ])
  3138                     if test x$have_usbhid_ucr_data = xyes; then
  3139                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3140                     fi
  3141                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3142                     
  3143                     AC_MSG_CHECKING(for new usbhid API)
  3144                     have_usbhid_new=no
  3145                     AC_TRY_COMPILE([
  3146                       #include <sys/types.h>
  3147                       #if defined(HAVE_USB_H)
  3148                       #include <usb.h>
  3149                       #endif
  3150                       #ifdef __DragonFly__
  3151                       #include <bus/usb/usb.h>
  3152                       #include <bus/usb/usbhid.h>
  3153                       #else
  3154                       #include <dev/usb/usb.h>
  3155                       #include <dev/usb/usbhid.h>
  3156                       #endif
  3157                       #if defined(HAVE_USBHID_H)
  3158                       #include <usbhid.h>
  3159                       #elif defined(HAVE_LIBUSB_H)
  3160                       #include <libusb.h>
  3161                       #elif defined(HAVE_LIBUSBHID_H)
  3162                       #include <libusbhid.h>
  3163                       #endif
  3164                     ],[
  3165                       report_desc_t d;
  3166                       hid_start_parse(d, 1, 1);
  3167                     ],[
  3168                     have_usbhid_new=yes
  3169                     ])
  3170                     if test x$have_usbhid_new = xyes; then
  3171                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3172                     fi
  3173                     AC_MSG_RESULT($have_usbhid_new)
  3174 
  3175                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3176                     have_machine_joystick=no
  3177                     AC_TRY_COMPILE([
  3178                       #include <machine/joystick.h>
  3179                     ],[
  3180                       struct joystick t;
  3181                     ],[
  3182                     have_machine_joystick=yes
  3183                     ])
  3184                     if test x$have_machine_joystick = xyes; then
  3185                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3186                     fi
  3187                     AC_MSG_RESULT($have_machine_joystick)
  3188 
  3189                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3190                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3191                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3192                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3193                     have_joystick=yes
  3194                 fi
  3195                 CFLAGS="$save_CFLAGS"
  3196             fi
  3197         ;;
  3198     esac
  3199 }
  3200 
  3201 dnl Check for clock_gettime()
  3202 CheckClockGettime()
  3203 {
  3204     AC_ARG_ENABLE(clock_gettime,
  3205 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3206                   , enable_clock_gettime=yes)
  3207     if test x$enable_clock_gettime = xyes; then
  3208         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3209         if test x$have_clock_gettime = xyes; then
  3210             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3211             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3212         else
  3213             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3214             if test x$have_clock_gettime = xyes; then
  3215                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3216                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3217             fi
  3218         fi
  3219     fi
  3220 }
  3221 
  3222 dnl Check for a valid linux/version.h
  3223 CheckLinuxVersion()
  3224 {
  3225     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3226     if test x$have_linux_version_h = xyes; then
  3227         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3228     fi
  3229 }
  3230 
  3231 dnl Check if we want to use RPATH
  3232 CheckRPATH()
  3233 {
  3234     AC_ARG_ENABLE(rpath,
  3235 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3236                   , enable_rpath=yes)
  3237 }
  3238 
  3239 dnl Do this on all platforms, before everything else (other things might want to override it).
  3240 CheckWarnAll
  3241 
  3242 dnl Set up the configuration based on the host platform!
  3243 case "$host" in
  3244     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3245         case "$host" in
  3246             *-*-android*)
  3247                 # Android
  3248                 ARCH=android
  3249                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3250                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3251                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3252                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3253                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3254                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3255 
  3256                 if test x$enable_video = xyes; then
  3257                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3258                     # FIXME: confdefs? Not AC_DEFINE?
  3259                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3260                     SUMMARY_video="${SUMMARY_video} android"
  3261                 fi
  3262                 ;;
  3263             *-*-linux*)         ARCH=linux ;;
  3264             *-*-uclinux*)       ARCH=linux ;;
  3265             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3266             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3267             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3268             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3269             *-*-bsdi*)          ARCH=bsdi ;;
  3270             *-*-freebsd*)       ARCH=freebsd ;;
  3271             *-*-dragonfly*)     ARCH=freebsd ;;
  3272             *-*-netbsd*)        ARCH=netbsd ;;
  3273             *-*-openbsd*)       ARCH=openbsd ;;
  3274             *-*-sysv5*)         ARCH=sysv5 ;;
  3275             *-*-solaris*)       ARCH=solaris ;;
  3276             *-*-hpux*)          ARCH=hpux ;;
  3277             *-*-aix*)           ARCH=aix ;;
  3278             *-*-minix*)         ARCH=minix ;;
  3279             *-*-nto*)           ARCH=nto
  3280                 CheckQNXVideo
  3281                 ;;
  3282         esac
  3283         CheckVisibilityHidden
  3284         CheckDeclarationAfterStatement
  3285         CheckDummyVideo
  3286         CheckDiskAudio
  3287         CheckDummyAudio
  3288         CheckDLOPEN
  3289         CheckOSS
  3290         CheckALSA
  3291         CheckPulseAudio
  3292         CheckJACK
  3293         CheckARTSC
  3294         CheckESD
  3295         CheckNAS
  3296         CheckSNDIO
  3297         CheckFusionSound
  3298         CheckLibSampleRate
  3299         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3300         CheckRPI
  3301         CheckX11
  3302         CheckDirectFB
  3303         CheckKMSDRM
  3304         CheckOpenGLX11
  3305         CheckOpenGLESX11
  3306         CheckVulkan
  3307         CheckMir
  3308         CheckWayland
  3309         CheckLibUDev
  3310         CheckDBus
  3311         CheckIME
  3312         CheckIBus
  3313         CheckFcitx
  3314         case $ARCH in
  3315           linux)
  3316               CheckInputEvents
  3317               CheckInputKD
  3318           ;;
  3319         esac
  3320         CheckTslib
  3321         CheckUSBHID
  3322         CheckPTHREAD
  3323         CheckClockGettime
  3324         CheckLinuxVersion
  3325         CheckRPATH
  3326         CheckVivanteVideo
  3327 
  3328         # Set up files for the audio library
  3329         if test x$enable_audio = xyes; then
  3330           case $ARCH in
  3331             sysv5|solaris|hpux)
  3332                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3333                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3334                 SUMMARY_audio="${SUMMARY_audio} sun"
  3335                 have_audio=yes
  3336             ;;
  3337             netbsd)  # Don't use this on OpenBSD, it's busted.
  3338                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3339                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3340                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3341                 have_audio=yes
  3342             ;;
  3343             aix)
  3344                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3345                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3346                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3347                 have_audio=yes
  3348             ;;
  3349             android)
  3350                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3351                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3352                 SUMMARY_audio="${SUMMARY_audio} android"
  3353                 have_audio=yes
  3354             ;;
  3355             nto)
  3356                 CheckQNXAudio
  3357             ;;
  3358           esac
  3359         fi
  3360         # Set up files for the joystick library
  3361         if test x$enable_joystick = xyes; then
  3362           case $ARCH in
  3363             linux)
  3364                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3365                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3366                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3367                 have_joystick=yes
  3368             ;;
  3369             android)
  3370                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3371                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3372                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3373                 have_joystick=yes
  3374             ;;
  3375           esac
  3376         fi
  3377         # Set up files for the haptic library
  3378         if test x$enable_haptic = xyes; then
  3379           case $ARCH in
  3380             linux)
  3381                 if test x$use_input_events = xyes; then
  3382                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3383                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3384                     have_haptic=yes
  3385                 fi
  3386             ;;
  3387             android)
  3388                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3389                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3390                 have_haptic=yes
  3391             ;;
  3392           esac
  3393         fi
  3394         # Set up files for the power library
  3395         if test x$enable_power = xyes; then
  3396              case $ARCH in
  3397                linux)
  3398                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3399                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3400                    have_power=yes
  3401                ;;
  3402                android)
  3403                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3404                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3405                    have_power=yes
  3406                ;;
  3407              esac
  3408         fi
  3409         # Set up files for the filesystem library
  3410         if test x$enable_filesystem = xyes; then
  3411              case $ARCH in
  3412                android)
  3413                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3414                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3415                    have_filesystem=yes
  3416                ;;
  3417                *)
  3418                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3419                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3420                    have_filesystem=yes
  3421                ;;
  3422              esac
  3423         fi
  3424         # Set up files for the timer library
  3425         if test x$enable_timers = xyes; then
  3426             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3427             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3428             have_timers=yes
  3429         fi
  3430         # Set up files for udev hotplugging support
  3431         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3432             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3433         fi
  3434         # Set up files for evdev input
  3435         if test x$use_input_events = xyes; then
  3436             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3437         fi       
  3438         # Set up other core UNIX files
  3439         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3440         ;;
  3441     *-*-cygwin* | *-*-mingw32*)
  3442         ARCH=win32
  3443         if test "$build" != "$host"; then # cross-compiling
  3444             # Default cross-compile location
  3445             ac_default_prefix=/usr/local/cross-tools/$host
  3446         else
  3447             # Look for the location of the tools and install there
  3448             if test "$BUILD_PREFIX" != ""; then
  3449                 ac_default_prefix=$BUILD_PREFIX
  3450             fi
  3451         fi
  3452         CheckDeclarationAfterStatement
  3453         CheckDummyVideo
  3454         CheckDiskAudio
  3455         CheckDummyAudio
  3456         CheckWINDOWS
  3457         CheckWINDOWSGL
  3458         CheckWINDOWSGLES
  3459         CheckVulkan
  3460         CheckDIRECTX
  3461 
  3462         # Set up the core platform files
  3463         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3464 
  3465         # Set up files for the video library
  3466         if test x$enable_video = xyes; then
  3467             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3468             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3469             have_video=yes
  3470             AC_ARG_ENABLE(render-d3d,
  3471 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3472                                 , enable_render_d3d=yes)
  3473             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3474                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3475             fi
  3476             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3477                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3478             fi
  3479         fi
  3480         # Set up files for the audio library
  3481         if test x$enable_audio = xyes; then
  3482             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3483             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3484             if test x$have_dsound = xyes; then
  3485                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3486                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3487             fi
  3488             if test x$have_wasapi = xyes; then
  3489                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3490                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3491             fi
  3492             have_audio=yes
  3493         fi
  3494         # Set up files for the joystick library
  3495         if test x$enable_joystick = xyes; then
  3496             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3497                 if test x$have_xinput = xyes; then
  3498                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3499                 fi
  3500                 if test x$have_dinput = xyes; then
  3501                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3502                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3503                 fi
  3504             else
  3505                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3506             fi
  3507             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3508             have_joystick=yes
  3509         fi
  3510         if test x$enable_haptic = xyes; then
  3511             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3512                 if test x$have_xinput = xyes; then
  3513                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3514                 fi
  3515                 if test x$have_dinput = xyes; then
  3516                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3517                 fi
  3518                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3519                 have_haptic=yes
  3520             fi
  3521         fi
  3522         if test x$enable_power = xyes; then
  3523             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3524             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3525             have_power=yes
  3526         fi
  3527         if test x$enable_filesystem = xyes; then
  3528             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3529             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3530             have_filesystem=yes
  3531         fi
  3532         # Set up files for the thread library
  3533         if test x$enable_threads = xyes; then
  3534             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3535             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3536             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3537             have_threads=yes
  3538         fi
  3539         # Set up files for the timer library
  3540         if test x$enable_timers = xyes; then
  3541             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3542             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3543             have_timers=yes
  3544         fi
  3545         # Set up files for the shared object loading library
  3546         if test x$enable_loadso = xyes; then
  3547             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3548             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3549             have_loadso=yes
  3550         fi
  3551         # Set up the system libraries we need
  3552         if test -f /lib/w32api/libuuid.a; then
  3553             LIBUUID=/lib/w32api/libuuid.a
  3554         else
  3555             LIBUUID=-luuid
  3556         fi
  3557         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3558         # The Windows platform requires special setup
  3559         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3560         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3561         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3562         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3563 
  3564         # Check to see if this is a mingw or cygwin build
  3565         have_mingw32=
  3566         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3567         if test x$have_mingw32 = xyes; then
  3568             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3569         else
  3570             SDL_LIBS="-lcygwin $SDL_LIBS"
  3571         fi
  3572         ;;
  3573 
  3574     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3575     *-*-beos*)
  3576         AC_MSG_ERROR([
  3577 *** BeOS support has been removed as of SDL 2.0.2.
  3578         ])
  3579         ;;
  3580 
  3581     *-*-haiku*)
  3582         ARCH=haiku
  3583         ac_default_prefix=/boot/system
  3584         CheckDummyVideo
  3585         CheckDiskAudio
  3586         CheckDummyAudio
  3587         CheckDLOPEN
  3588         CheckHaikuVideo
  3589         CheckHaikuGL
  3590         CheckPTHREAD
  3591 
  3592         # Set up files for the audio library
  3593         if test x$enable_audio = xyes; then
  3594             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3595             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3596             SUMMARY_audio="${SUMMARY_audio} haiku"
  3597             have_audio=yes
  3598         fi
  3599         # Set up files for the joystick library
  3600         if test x$enable_joystick = xyes; then
  3601             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3602             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3603             have_joystick=yes
  3604         fi
  3605         # Set up files for the timer library
  3606         if test x$enable_timers = xyes; then
  3607             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3608             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3609             have_timers=yes
  3610         fi
  3611         # Set up files for the system power library
  3612         if test x$enable_power = xyes; then
  3613             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3614             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3615             have_power=yes
  3616         fi
  3617         # Set up files for the system filesystem library
  3618         if test x$enable_filesystem = xyes; then
  3619             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3620             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3621             have_filesystem=yes
  3622         fi
  3623         # The Haiku platform requires special setup.
  3624         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3625         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3626         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3627         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3628         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3629         ;;
  3630     arm*-apple-darwin*|*-ios-*)
  3631         ARCH=ios
  3632 
  3633         CheckVisibilityHidden
  3634         CheckDeclarationAfterStatement
  3635         CheckDummyVideo
  3636         CheckDiskAudio
  3637         CheckDummyAudio
  3638         CheckDLOPEN
  3639         CheckPTHREAD
  3640         CheckVulkan
  3641 
  3642         # Set up files for the audio library
  3643         if test x$enable_audio = xyes; then
  3644             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3645             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3646             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3647             have_audio=yes
  3648         fi
  3649         # Set up files for the joystick library
  3650         if test x$enable_joystick = xyes; then
  3651             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3652             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3653             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3654             have_joystick=yes
  3655         fi
  3656         # Set up files for the haptic library
  3657         #if test x$enable_haptic = xyes; then
  3658         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3659         #    have_haptic=yes
  3660         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3661         #fi
  3662         # Set up files for the power library
  3663         if test x$enable_power = xyes; then
  3664             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3665             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3666             have_power=yes
  3667         fi
  3668         # Set up files for the filesystem library
  3669         if test x$enable_filesystem = xyes; then
  3670             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3671             have_filesystem=yes
  3672         fi
  3673         # Set up additional files for the file library
  3674         if test x$enable_file = xyes; then
  3675             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3676             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3677         fi
  3678         # Set up files for the timer library
  3679         if test x$enable_timers = xyes; then
  3680             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3681             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3682             have_timers=yes
  3683         fi
  3684         # Set up other core UNIX files
  3685         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3686         # The iOS platform requires special setup.
  3687         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3688         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3689         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3690         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3691         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3692         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3693         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3694         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3695         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3696         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3697         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3698         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3699         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3700         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3701         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3702         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3703         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3704         ;;
  3705     *-*-darwin* )
  3706         # This could be either full "Mac OS X", or plain "Darwin" which is
  3707         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3708         # Next line is broken, and a few files below require Mac OS X (full)
  3709         ARCH=macosx
  3710 
  3711         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3712         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3713         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3714 
  3715         CheckVisibilityHidden
  3716         CheckDeclarationAfterStatement
  3717         CheckDummyVideo
  3718         CheckDiskAudio
  3719         CheckDummyAudio
  3720         CheckDLOPEN
  3721         CheckCOCOA
  3722         CheckX11
  3723         CheckMacGL
  3724         CheckOpenGLX11
  3725         CheckVulkan
  3726         CheckPTHREAD
  3727 
  3728         # Set up files for the audio library
  3729         if test x$enable_audio = xyes; then
  3730             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3731             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3732             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3733             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3734             have_audio=yes
  3735         fi
  3736         # Set up files for the joystick library
  3737         if test x$enable_joystick = xyes; then
  3738             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3739             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3740             have_joystick=yes
  3741         fi
  3742         # Set up files for the haptic library
  3743         if test x$enable_haptic = xyes; then
  3744             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3745             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3746             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3747             have_haptic=yes
  3748         fi
  3749         # Set up files for the power library
  3750         if test x$enable_power = xyes; then
  3751             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3752             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3753             have_power=yes
  3754         fi
  3755         # Set up files for the filesystem library
  3756         if test x$enable_filesystem = xyes; then
  3757             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3758             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3759             have_filesystem=yes
  3760         fi
  3761         # Set up files for the timer library
  3762         if test x$enable_timers = xyes; then
  3763             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3764             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3765             have_timers=yes
  3766         fi
  3767         # Set up additional files for the file library
  3768         if test x$enable_file = xyes; then
  3769             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3770         fi
  3771         # Set up other core UNIX files
  3772         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3773         # The Mac OS X platform requires special setup.
  3774         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3775         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3776         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3777         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3778         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3779         ;;
  3780     *-nacl|*-pnacl)
  3781         ARCH=nacl
  3782         CheckNativeClient
  3783         CheckDummyAudio
  3784         CheckDummyVideo
  3785         CheckInputEvents
  3786         CheckPTHREAD
  3787         
  3788         # Set up files for the timer library
  3789         if test x$enable_timers = xyes; then
  3790             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3791             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3792             have_timers=yes
  3793         fi
  3794         
  3795         if test x$enable_filesystem = xyes; then
  3796             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3797             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3798             have_filesystem=yes
  3799         fi
  3800         ;;
  3801     *-*-emscripten* )
  3802         if test x$enable_video = xyes; then
  3803             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3804             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3805             have_video=yes
  3806             SUMMARY_video="${SUMMARY_video} emscripten"
  3807         fi
  3808 
  3809         if test x$enable_audio = xyes; then
  3810             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3811             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3812             have_audio=yes
  3813             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3814         fi
  3815 
  3816         CheckVisibilityHidden
  3817         CheckDeclarationAfterStatement
  3818         CheckDummyVideo
  3819         CheckDiskAudio
  3820         CheckDummyAudio
  3821         CheckDLOPEN
  3822         CheckClockGettime
  3823         CheckEmscriptenGLES
  3824 
  3825          # Set up files for the power library
  3826         if test x$enable_power = xyes; then
  3827             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3828             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3829             have_power=yes
  3830         fi
  3831         
  3832         # Set up files for the power library
  3833         if test x$enable_joystick = xyes; then
  3834             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3835             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3836             have_joystick=yes
  3837         fi
  3838 
  3839         # Set up files for the filesystem library
  3840         if test x$enable_filesystem = xyes; then
  3841             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3842             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3843             have_filesystem=yes
  3844         fi
  3845         # Set up files for the timer library
  3846         if test x$enable_timers = xyes; then
  3847             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3848             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3849             have_timers=yes
  3850         fi
  3851         ;;
  3852     *)
  3853         AC_MSG_ERROR([
  3854 *** Unsupported host:  Please add to configure.in
  3855         ])
  3856         ;;
  3857 esac
  3858 
  3859 # Verify that we have all the platform specific files we need
  3860 
  3861 if test x$have_joystick != xyes; then
  3862     if test x$enable_joystick = xyes; then
  3863         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3864     fi
  3865     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3866 fi
  3867 if test x$have_haptic != xyes; then
  3868     if test x$enable_haptic = xyes; then
  3869         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3870     fi
  3871     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3872 fi
  3873 if test x$have_threads != xyes; then
  3874     if test x$enable_threads = xyes; then
  3875         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3876     fi
  3877     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3878 fi
  3879 if test x$have_timers != xyes; then
  3880     if test x$enable_timers = xyes; then
  3881         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3882     fi
  3883     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3884 fi
  3885 if test x$have_filesystem != xyes; then
  3886     if test x$enable_filesystem = xyes; then
  3887         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3888     fi
  3889     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3890 fi
  3891 if test x$have_loadso != xyes; then
  3892     if test x$enable_loadso = xyes; then
  3893         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3894     fi
  3895     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3896 fi
  3897 if test x$SDLMAIN_SOURCES = x; then
  3898     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3899 fi
  3900 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3901 
  3902 if test x$video_wayland = xyes; then
  3903     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3904     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3905     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3906         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3907     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3908         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3909     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3910     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3911 
  3912     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3913 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3914 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3915 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3916 
  3917     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3918 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3919 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3920 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3921 
  3922     WAYLAND_CORE_PROTOCOL_OBJECT="
  3923 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3924 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3925 
  3926     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3927         do echo ; echo \$p | sed\
  3928         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3929 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3930 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3931 
  3932     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3933         do echo ; echo \$p | sed\
  3934         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3935 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3936 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3937 
  3938     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3939         do echo ; echo \$p | sed\
  3940         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3941 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3942 
  3943     WAYLAND_PROTOCOLS_DEPENDS="
  3944 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3945 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3946 $WAYLAND_CORE_PROTOCOL_OBJECT
  3947 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3948 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3949 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3950 "
  3951 fi
  3952 
  3953 OBJECTS=`echo $SOURCES`
  3954 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3955 for EXT in asm cc m c S; do
  3956     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3957     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3958 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3959 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3960 done
  3961 
  3962 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3963 
  3964 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3965 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3966 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3967 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3968 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3969 	\\$(WINDRES) \\$< \\$@,g"`
  3970 
  3971 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3972 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3973 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3974 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3975 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3976 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3977 
  3978 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3979 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3980 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3981 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3982 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3983 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3984 
  3985 # Set runtime shared library paths as needed
  3986 
  3987 if test "x$enable_rpath" = "xyes"; then
  3988   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3989     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3990 
  3991     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  3992     have_enable_new_dtags=no
  3993     save_LDFLAGS="$LDFLAGS"
  3994     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  3995     AC_TRY_LINK([
  3996     ],[
  3997     ],[
  3998     have_enable_new_dtags=yes
  3999     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4000     ])
  4001     LDFLAGS="$save_LDFLAGS"
  4002     AC_MSG_RESULT($have_enable_new_dtags)
  4003   fi
  4004   if test $ARCH = solaris; then
  4005     SDL_RLD_FLAGS="-R\${libdir}"
  4006   fi
  4007 else
  4008   SDL_RLD_FLAGS=""
  4009 fi
  4010 
  4011 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4012 
  4013 dnl Expand the cflags and libraries needed by apps using SDL
  4014 AC_SUBST(SDL_CFLAGS)
  4015 AC_SUBST(SDL_LIBS)
  4016 AC_SUBST(SDL_STATIC_LIBS)
  4017 AC_SUBST(SDL_RLD_FLAGS)
  4018 if test x$enable_shared = xyes; then
  4019     ENABLE_SHARED_TRUE=
  4020     ENABLE_SHARED_FALSE="#"
  4021 else
  4022     ENABLE_SHARED_TRUE="#"
  4023     ENABLE_SHARED_FALSE=
  4024 fi
  4025 if test x$enable_static = xyes; then
  4026     ENABLE_STATIC_TRUE=
  4027     ENABLE_STATIC_FALSE="#"
  4028 else
  4029     ENABLE_STATIC_TRUE="#"
  4030     ENABLE_STATIC_FALSE=
  4031 fi
  4032 AC_SUBST(ENABLE_SHARED_TRUE)
  4033 AC_SUBST(ENABLE_SHARED_FALSE)
  4034 AC_SUBST(ENABLE_STATIC_TRUE)
  4035 AC_SUBST(ENABLE_STATIC_FALSE)
  4036 
  4037 dnl Expand the sources and objects needed to build the library
  4038 AC_SUBST(ac_aux_dir)
  4039 AC_SUBST(INCLUDE)
  4040 AC_SUBST(OBJECTS)
  4041 AC_SUBST(GEN_HEADERS)
  4042 AC_SUBST(GEN_OBJECTS)
  4043 AC_SUBST(VERSION_OBJECTS)
  4044 AC_SUBST(SDLMAIN_OBJECTS)
  4045 AC_SUBST(SDLTEST_OBJECTS)
  4046 AC_SUBST(BUILD_CFLAGS)
  4047 AC_SUBST(EXTRA_CFLAGS)
  4048 AC_SUBST(BUILD_LDFLAGS)
  4049 AC_SUBST(EXTRA_LDFLAGS)
  4050 AC_SUBST(WINDRES)
  4051 AC_SUBST(WAYLAND_SCANNER)
  4052 
  4053 cat >Makefile.rules <<__EOF__
  4054 
  4055 # Build rules for objects
  4056 -include \$(OBJECTS:.lo=.d)
  4057 
  4058 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4059 $srcdir/src/SDL.c: update-revision
  4060 $DEPENDS
  4061 $VERSION_DEPENDS
  4062 $SDLMAIN_DEPENDS
  4063 $SDLTEST_DEPENDS
  4064 $WAYLAND_PROTOCOLS_DEPENDS
  4065 __EOF__
  4066 
  4067 AC_CONFIG_FILES([
  4068     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4069 ])
  4070 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4071 
  4072 SUMMARY="SDL2 Configure Summary:\n"
  4073 if test x$enable_shared = xyes; then
  4074     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4075 fi
  4076 if test x$enable_static = xyes; then
  4077     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4078 fi
  4079 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4080 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4081 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4082 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4083 if test x$have_x = xyes; then
  4084     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4085 fi
  4086 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4087 if test x$have_samplerate_h_hdr = xyes; then
  4088     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4089 else
  4090     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4091 fi
  4092 if test x$have_libudev_h_hdr = xyes; then
  4093     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4094 else
  4095     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4096 fi
  4097 if test x$have_dbus_dbus_h_hdr = xyes; then
  4098     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4099 else
  4100     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4101 fi
  4102 if test x$enable_ime = xyes; then
  4103     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4104 else
  4105     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4106 fi
  4107 if test x$have_ibus_ibus_h_hdr = xyes; then
  4108     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4109 else
  4110     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4111 fi
  4112 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4113     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4114 else
  4115     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4116 fi
  4117 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4118 
  4119 AC_OUTPUT