configure.in
author Ryan C. Gordon <icculus@icculus.org>
Thu, 21 Apr 2016 03:16:44 -0400
changeset 11729 d1ce8396c356
parent 11726 27d08f1aab80
child 11730 ac6c607e065c
permissions -rw-r--r--
Initial shot at a renderer target for Apple's Metal API.

This isn't complete, but is enough to run testsprite2. It's currently
Mac-only; with a little work to figure out how to properly glue in a Metal
layer to a UIView, this will likely work on iOS, too.

This is only wired up to the configure script right now, and disabled by
default. CMake and Xcode still need their bits filled in as appropriate.
     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 CheckMETAL()
  2057 {
  2058     AC_ARG_ENABLE(render-metal,
  2059 AC_HELP_STRING([--enable-render-metal], [enable the Metal render driver [[default=no]]]),
  2060                                 , enable_render_metal=no)
  2061     if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  2062         dnl This should maybe make sure you have a supported SDK version.
  2063         AC_DEFINE(SDL_VIDEO_RENDER_METAL, 1, [ ])
  2064         SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
  2065     fi
  2066 }
  2067 
  2068 
  2069 dnl Find DirectFB
  2070 CheckDirectFB()
  2071 {
  2072     AC_ARG_ENABLE(video-directfb,
  2073 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2074                   , enable_video_directfb=no)
  2075     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2076         video_directfb=no
  2077 
  2078         DIRECTFB_REQUIRED_VERSION=1.0.0
  2079         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2080         if test x$DIRECTFBCONFIG = xno; then
  2081             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2082             if test x$PKG_CONFIG != xno; then
  2083                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2084                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2085                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2086                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2087                     video_directfb=yes
  2088                 fi
  2089             fi
  2090         else
  2091             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2092             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2093             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2094             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2095             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2096                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2097                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2098                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2099                 video_directfb=yes
  2100             fi
  2101         fi
  2102         if test x$video_directfb = xyes; then
  2103             # SuSE 11.1 installs directfb-config without directfb-devel
  2104             save_CPPFLAGS="$CPPFLAGS"
  2105             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2106             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2107             CPPFLAGS="$save_CPPFLAGS"
  2108             video_directfb=$have_directfb_hdr
  2109         fi
  2110         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2111         AC_MSG_RESULT($video_directfb)
  2112 
  2113         if test x$video_directfb = xyes; then
  2114             AC_ARG_ENABLE(directfb-shared,
  2115 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2116                               , enable_directfb_shared=yes)
  2117 
  2118             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2119             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2120             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2121 
  2122             AC_MSG_CHECKING(for directfb dynamic loading support)
  2123             directfb_shared=no
  2124             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2125             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2126 AC_MSG_WARN("directfb $directfb_lib")
  2127             if test x$have_loadso != xyes && \
  2128                test x$enable_directfb_shared = xyes; then
  2129                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2130             fi
  2131             if test x$have_loadso = xyes && \
  2132                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2133                 directfb_shared=yes
  2134                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2135                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2136                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2137             else
  2138                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2139                 SUMMARY_video="${SUMMARY_video} directfb"
  2140             fi
  2141             AC_MSG_RESULT($directfb_shared)
  2142             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2143             have_video=yes
  2144         fi
  2145     fi
  2146 }
  2147 
  2148 dnl Find KMSDRM
  2149 CheckKMSDRM()
  2150 {
  2151     AC_ARG_ENABLE(video-kmsdrm,
  2152 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2153                   , enable_video_kmsdrm=no)
  2154 
  2155     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2156         video_kmsdrm=no
  2157         libdrm_avail=no
  2158         libgbm_avail=no
  2159 
  2160         LIBDRM_REQUIRED_VERSION=2.4.46
  2161         LIBGBM_REQUIRED_VERSION=9.0.0
  2162 
  2163         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2164         if test x$PKG_CONFIG != xno; then
  2165             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2166                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2167                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2168                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2169                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2170                     libdrm_avail=yes
  2171                 fi
  2172                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2173                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2174                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2175                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2176                     libgbm_avail=yes
  2177                 fi
  2178                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2179                     video_kmsdrm=yes
  2180                 fi
  2181  
  2182                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2183                 AC_MSG_RESULT($libdrm_avail)
  2184                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2185                 AC_MSG_RESULT($libgbm_avail)
  2186 
  2187                 if test x$video_kmsdrm = xyes; then
  2188                     AC_ARG_ENABLE(kmsdrm-shared,
  2189 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2190                               , enable_kmsdrm_shared=yes)
  2191 
  2192                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2193                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2194                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2195 
  2196                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2197                     kmsdrm_shared=no
  2198                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2199                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2200                     if test x$have_loadso != xyes && \
  2201                        test x$enable_kmsdrm_shared = xyes; then
  2202                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2203                     fi
  2204                     if test x$have_loadso = xyes && \
  2205                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2206                         kmsdrm_shared=yes
  2207                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2208                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2209                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2210                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2211                     else
  2212                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2213                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2214                     fi
  2215                     AC_MSG_RESULT($kmsdrm_shared)
  2216                     have_video=yes
  2217                 fi
  2218             fi
  2219         fi
  2220     fi
  2221 }
  2222 
  2223 dnl rcg04172001 Set up the Null video driver.
  2224 CheckDummyVideo()
  2225 {
  2226     AC_ARG_ENABLE(video-dummy,
  2227 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2228                   , enable_video_dummy=yes)
  2229     if test x$enable_video_dummy = xyes; then
  2230         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2231         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2232         have_video=yes
  2233         SUMMARY_video="${SUMMARY_video} dummy"
  2234     fi
  2235 }
  2236 
  2237 dnl Set up the QNX video driver if enabled
  2238 CheckQNXVideo()
  2239 {
  2240     if test x$enable_video = xyes; then
  2241         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2242         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2243         have_video=yes
  2244         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2245         SUMMARY_video="${SUMMARY_video} qnx"
  2246     fi
  2247 }
  2248 
  2249 dnl Set up the QNX audio driver if enabled
  2250 CheckQNXAudio()
  2251 {
  2252     if test x$enable_audio = xyes; then
  2253         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2254         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2255         have_audio=yes
  2256         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2257         SUMMARY_audio="${SUMMARY_audio} qsa"
  2258     fi
  2259 }
  2260 
  2261 dnl Check to see if OpenGL support is desired
  2262 AC_ARG_ENABLE(video-opengl,
  2263 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2264               , enable_video_opengl=yes)
  2265 
  2266 dnl Find OpenGL
  2267 CheckOpenGLX11()
  2268 {
  2269     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2270         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2271         video_opengl=no
  2272         AC_TRY_COMPILE([
  2273          #include <GL/gl.h>
  2274          #include <GL/glx.h>
  2275         ],[
  2276         ],[
  2277         video_opengl=yes
  2278         ])
  2279         AC_MSG_RESULT($video_opengl)
  2280         if test x$video_opengl = xyes; then
  2281             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2282             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2283             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2284             SUMMARY_video="${SUMMARY_video} opengl"
  2285         fi
  2286     fi
  2287 }
  2288 
  2289 dnl Check to see if OpenGL ES support is desired
  2290 AC_ARG_ENABLE(video-opengles,
  2291 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2292               , enable_video_opengles=yes)
  2293 AC_ARG_ENABLE(video-opengles1,
  2294 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2295               , enable_video_opengles1=yes)
  2296 AC_ARG_ENABLE(video-opengles2,
  2297 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2298               , enable_video_opengles2=yes)
  2299 
  2300 dnl Find OpenGL ES
  2301 CheckOpenGLESX11()
  2302 {
  2303     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2304         AC_MSG_CHECKING(for EGL support)
  2305         video_opengl_egl=no
  2306         AC_TRY_COMPILE([
  2307           #define LINUX
  2308           #define EGL_API_FB
  2309           #include <EGL/egl.h>
  2310           #include <EGL/eglext.h>
  2311         ],[
  2312         ],[
  2313         video_opengl_egl=yes
  2314         ])
  2315         AC_MSG_RESULT($video_opengl_egl)
  2316         if test x$video_opengl_egl = xyes; then
  2317             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2318         fi
  2319             
  2320         if test x$enable_video_opengles1 = xyes; then
  2321             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2322             video_opengles_v1=no
  2323             AC_TRY_COMPILE([
  2324              #include <GLES/gl.h>
  2325              #include <GLES/glext.h>
  2326             ],[
  2327             ],[
  2328             video_opengles_v1=yes
  2329             ])
  2330             AC_MSG_RESULT($video_opengles_v1)
  2331             if test x$video_opengles_v1 = xyes; then
  2332                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2333                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2334                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2335             fi
  2336         fi
  2337         
  2338         if test x$enable_video_opengles2 = xyes; then
  2339             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2340             video_opengles_v2=no
  2341             AC_TRY_COMPILE([
  2342              #include <GLES2/gl2.h>
  2343              #include <GLES2/gl2ext.h>
  2344             ],[
  2345             ],[
  2346             video_opengles_v2=yes
  2347             ])
  2348             AC_MSG_RESULT($video_opengles_v2)
  2349             if test x$video_opengles_v2 = xyes; then
  2350                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2351                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2352                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2353             fi
  2354         fi
  2355     fi
  2356 }
  2357 
  2358 dnl Check for Windows OpenGL
  2359 CheckWINDOWSGL()
  2360 {
  2361     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2362         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2363         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2364         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2365         SUMMARY_video="${SUMMARY_video} opengl"
  2366     fi
  2367 }
  2368 
  2369 dnl Check for Windows OpenGL
  2370 CheckWINDOWSGLES()
  2371 {
  2372     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2373 
  2374         AC_MSG_CHECKING(for EGL support)
  2375         video_opengl_egl=no
  2376         AC_TRY_COMPILE([
  2377          #include <EGL/egl.h>
  2378         ],[
  2379         ],[
  2380         video_opengl_egl=yes
  2381         ])
  2382         AC_MSG_RESULT($video_opengl_egl)
  2383         if test x$video_opengl_egl = xyes; then
  2384             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2385             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2386             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2387         fi
  2388        
  2389         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2390         video_opengles_v2=no
  2391         AC_TRY_COMPILE([
  2392          #include <GLES2/gl2.h>
  2393          #include <GLES2/gl2ext.h>
  2394         ],[
  2395         ],[
  2396         video_opengles_v2=yes
  2397         ])
  2398         AC_MSG_RESULT($video_opengles_v2)
  2399         if test x$video_opengles_v2 = xyes; then
  2400             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2401             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2402             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2403             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2404         fi
  2405     fi
  2406 }
  2407 
  2408 dnl Check for Haiku OpenGL
  2409 CheckHaikuGL()
  2410 {
  2411     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2412         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2413         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2414         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2415         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2416         SUMMARY_video="${SUMMARY_video} opengl"
  2417     fi
  2418 }
  2419 
  2420 dnl Check for MacOS OpenGL
  2421 CheckMacGL()
  2422 {
  2423     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2424         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2425         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2426         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2427         SUMMARY_video="${SUMMARY_video} opengl"
  2428     fi
  2429 }
  2430 
  2431 CheckEmscriptenGLES()
  2432 {
  2433     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2434         AC_MSG_CHECKING(for EGL support)
  2435         video_opengl_egl=no
  2436         AC_TRY_COMPILE([
  2437          #include <EGL/egl.h>
  2438         ],[
  2439         ],[
  2440         video_opengl_egl=yes
  2441         ])
  2442         AC_MSG_RESULT($video_opengl_egl)
  2443         if test x$video_opengl_egl = xyes; then
  2444             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2445         fi
  2446 
  2447         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2448         video_opengles_v2=no
  2449         AC_TRY_COMPILE([
  2450          #include <GLES2/gl2.h>
  2451          #include <GLES2/gl2ext.h>
  2452         ],[
  2453         ],[
  2454         video_opengles_v2=yes
  2455         ])
  2456         AC_MSG_RESULT($video_opengles_v2)
  2457         if test x$video_opengles_v2 = xyes; then
  2458             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2459             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2460             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2461         fi
  2462     fi
  2463 }
  2464 
  2465 dnl Check to see if Vulkan support is desired
  2466 AC_ARG_ENABLE(video-vulkan,
  2467 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2468               , enable_video_vulkan=yes)
  2469 
  2470 dnl Find Vulkan Header
  2471 CheckVulkan()
  2472 {
  2473     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2474         case "$host" in
  2475             *-*-android*)
  2476                 AC_TRY_COMPILE([
  2477                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2478                   #error Vulkan doesn't work on this configuration
  2479                   #endif
  2480                 ],[
  2481                 ],[
  2482                 ],[
  2483                     enable_video_vulkan=no
  2484                 ])
  2485                 ;;
  2486             *-*-darwin*)
  2487                 save_CFLAGS="$CFLAGS"
  2488                 dnl Work around that we don't have Objective-C support in autoconf
  2489                 CFLAGS="$CFLAGS -x objective-c"
  2490                 AC_TRY_COMPILE([
  2491                   #include <Cocoa/Cocoa.h>
  2492                   #include <Metal/Metal.h>
  2493                   #include <QuartzCore/CAMetalLayer.h>
  2494 
  2495                   #if !TARGET_CPU_X86_64
  2496                   #error Vulkan doesn't work on this configuration
  2497                   #endif
  2498                 ],[
  2499                 ],[
  2500                 ],[
  2501                     enable_video_vulkan=no
  2502                 ])
  2503                 CFLAGS="$save_CFLAGS"
  2504                 ;;
  2505             *)
  2506                 ;;
  2507         esac
  2508         if test x$enable_video_vulkan = xno; then
  2509             # For reasons I am totally unable to see, I get an undefined macro error if
  2510             # I put this in the AC_TRY_COMPILE.
  2511             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2512         fi
  2513     fi
  2514     if test x$enable_video_vulkan = xyes; then
  2515         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2516         SUMMARY_video="${SUMMARY_video} vulkan"
  2517     fi
  2518 }
  2519 
  2520 dnl See if we can use the new unified event interface in Linux 2.4
  2521 CheckInputEvents()
  2522 {
  2523     dnl Check for Linux 2.4 unified input event interface support
  2524         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2525         use_input_events=no
  2526         AC_TRY_COMPILE([
  2527           #include <linux/input.h>
  2528         ],[
  2529           #ifndef EVIOCGNAME
  2530           #error EVIOCGNAME() ioctl not available
  2531           #endif
  2532         ],[
  2533         use_input_events=yes
  2534         ])
  2535         AC_MSG_RESULT($use_input_events)
  2536         if test x$use_input_events = xyes; then
  2537             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2538             SUMMARY_input="${SUMMARY_input} linuxev"
  2539         fi
  2540 }
  2541 
  2542 dnl See if we can use the kernel kd.h header
  2543 CheckInputKD()
  2544 {
  2545 
  2546     AC_MSG_CHECKING(for Linux kd.h)
  2547     use_input_kd=no
  2548     AC_TRY_COMPILE([
  2549       #include <linux/kd.h>
  2550       #include <linux/keyboard.h>
  2551     ],[
  2552         struct kbentry kbe;
  2553         kbe.kb_table = KG_CTRL;
  2554         ioctl(0, KDGKBENT, &kbe);
  2555     ],[
  2556     use_input_kd=yes
  2557     ])
  2558     AC_MSG_RESULT($use_input_kd)
  2559     if test x$use_input_kd = xyes; then
  2560         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2561         SUMMARY_input="${SUMMARY_input} linuxkd"
  2562     fi
  2563 }
  2564 
  2565 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2566 CheckLibUDev()
  2567 {
  2568     AC_ARG_ENABLE(libudev,
  2569 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2570                         , enable_libudev=yes)
  2571     if test x$enable_libudev = xyes; then
  2572         AC_CHECK_HEADER(libudev.h,
  2573                         have_libudev_h_hdr=yes,
  2574                         have_libudev_h_hdr=no)
  2575         if test x$have_libudev_h_hdr = xyes; then
  2576             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2577 
  2578             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2579             if test x$udev_lib != x; then
  2580                 echo "-- dynamic udev -> $udev_lib"
  2581                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2582             fi
  2583         fi
  2584     fi
  2585 }
  2586 
  2587 dnl See if the platform offers libdbus for various IPC techniques.
  2588 CheckDBus()
  2589 {
  2590     AC_ARG_ENABLE(dbus,
  2591 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2592                         , enable_dbus=yes)
  2593     if test x$enable_dbus = xyes; then
  2594         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2595         if test x$PKG_CONFIG != xno; then
  2596             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2597             save_CFLAGS="$CFLAGS"
  2598             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2599             AC_CHECK_HEADER(dbus/dbus.h,
  2600                             have_dbus_dbus_h_hdr=yes,
  2601                             have_dbus_dbus_h_hdr=no)
  2602             CFLAGS="$save_CFLAGS"
  2603             if test x$have_dbus_dbus_h_hdr = xyes; then
  2604                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2605                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2606                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2607             fi
  2608         fi
  2609     fi
  2610 }
  2611 
  2612 dnl See if the platform wanna IME support.
  2613 CheckIME()
  2614 {
  2615     AC_ARG_ENABLE(ime,
  2616 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2617                   , enable_ime=yes)
  2618     if test x$enable_ime = xyes; then
  2619         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2620             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2621     fi
  2622 }
  2623 
  2624 dnl See if the platform has libibus IME support.
  2625 CheckIBus()
  2626 {
  2627     AC_ARG_ENABLE(ibus,
  2628 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2629                   , enable_ibus=yes)
  2630     if test x$enable_ibus = xyes; then
  2631         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2632         if test x$PKG_CONFIG != xno; then
  2633             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2634             save_CFLAGS="$CFLAGS"
  2635             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2636             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2637                             have_ibus_ibus_h_hdr=yes,
  2638                             have_ibus_ibus_h_hdr=no)
  2639             AC_CHECK_HEADER(sys/inotify.h,
  2640                             have_inotify_inotify_h_hdr=yes,
  2641                             have_inotify_inotify_h_hdr=no)
  2642             CFLAGS="$save_CFLAGS"
  2643             if test x$have_ibus_ibus_h_hdr = xyes; then
  2644                 if test x$enable_ime != xyes; then
  2645                     AC_MSG_WARN([IME support is required for IBus.])
  2646                     have_ibus_ibus_h_hdr=no
  2647                 elif test x$enable_dbus != xyes; then
  2648                     AC_MSG_WARN([DBus support is required for IBus.])
  2649                     have_ibus_ibus_h_hdr=no
  2650                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2651                     AC_MSG_WARN([INotify support is required for IBus.])
  2652                     have_ibus_ibus_h_hdr=no
  2653                 else
  2654                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2655                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2656                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2657                fi
  2658             fi
  2659         fi
  2660     fi
  2661 }
  2662 
  2663 dnl See if the platform has fcitx IME support.
  2664 CheckFcitx()
  2665 {
  2666     AC_ARG_ENABLE(fcitx,
  2667 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2668                   , enable_fcitx=yes)
  2669     if test x$enable_fcitx = xyes; then
  2670         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2671         if test x$PKG_CONFIG != xno; then
  2672             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2673             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2674             AC_CHECK_HEADER(fcitx/frontend.h,
  2675                             have_fcitx_frontend_h_hdr=yes,
  2676                             have_fcitx_frontend_h_hdr=no)
  2677             CFLAGS="$save_CFLAGS"
  2678             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2679                 if test x$enable_ime != xyes; then
  2680                     AC_MSG_WARN([IME support is required for fcitx.])
  2681                     have_fcitx_frontend_h_hdr=no
  2682                 elif test x$enable_dbus != xyes; then
  2683                     AC_MSG_WARN([DBus support is required for fcitx.])
  2684                     have_fcitx_frontend_h_hdr=no
  2685                 else
  2686                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2687                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2688                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2689                fi
  2690             fi
  2691         fi
  2692     fi
  2693 }
  2694 
  2695 dnl See if we can use the Touchscreen input library
  2696 CheckTslib()
  2697 {
  2698     AC_ARG_ENABLE(input-tslib,
  2699 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2700                   , enable_input_tslib=yes)
  2701     if test x$enable_input_tslib = xyes; then
  2702         AC_MSG_CHECKING(for Touchscreen library support)
  2703         enable_input_tslib=no
  2704         AC_TRY_COMPILE([
  2705           #include "tslib.h"
  2706         ],[
  2707         ],[
  2708         enable_input_tslib=yes
  2709         ])
  2710         AC_MSG_RESULT($enable_input_tslib)
  2711         if test x$enable_input_tslib = xyes; then
  2712             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2713             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2714             SUMMARY_input="${SUMMARY_input} ts"
  2715         fi
  2716     fi
  2717 }
  2718 
  2719 dnl See what type of thread model to use on Linux and Solaris
  2720 CheckPTHREAD()
  2721 {
  2722     dnl Check for pthread support
  2723     AC_ARG_ENABLE(pthreads,
  2724 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2725                   , enable_pthreads=yes)
  2726     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2727     AC_ARG_ENABLE(pthread-sem,
  2728 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2729                   , enable_pthread_sem=yes)
  2730     case "$host" in
  2731          *-*-android*)
  2732             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2733             pthread_lib=""
  2734             ;;
  2735         *-*-linux*|*-*-uclinux*)
  2736             pthread_cflags="-D_REENTRANT"
  2737             pthread_lib="-lpthread"
  2738             ;;
  2739         *-*-bsdi*)
  2740             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2741             pthread_lib=""
  2742             ;;
  2743         *-*-darwin*)
  2744             pthread_cflags="-D_THREAD_SAFE"
  2745 # causes Carbon.p complaints?
  2746 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2747             ;;
  2748         *-*-freebsd*|*-*-dragonfly*)
  2749             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2750             pthread_lib="-pthread"
  2751             ;;
  2752         *-*-netbsd*)
  2753             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2754             pthread_lib="-lpthread"
  2755             ;;
  2756         *-*-openbsd*)
  2757             pthread_cflags="-D_REENTRANT"
  2758             pthread_lib="-pthread"
  2759             ;;
  2760         *-*-solaris2.9)
  2761             # From Solaris 9+, posix4's preferred name is rt.
  2762             pthread_cflags="-D_REENTRANT"
  2763             pthread_lib="-lpthread -lrt"
  2764             ;;
  2765         *-*-solaris2.10)
  2766             # Solaris 10+ merged pthread into libc.
  2767             pthread_cflags="-D_REENTRANT"
  2768             pthread_lib="-lrt"
  2769             ;;
  2770         *-*-solaris*)
  2771             # Solaris 11+ merged rt into libc.
  2772             pthread_cflags="-D_REENTRANT"
  2773             pthread_lib=""
  2774             ;;
  2775         *-*-sysv5*)
  2776             pthread_cflags="-D_REENTRANT -Kthread"
  2777             pthread_lib=""
  2778             ;;
  2779         *-*-aix*)
  2780             pthread_cflags="-D_REENTRANT -mthreads"
  2781             pthread_lib="-lpthread"
  2782             ;;
  2783         *-*-hpux11*)
  2784             pthread_cflags="-D_REENTRANT"
  2785             pthread_lib="-L/usr/lib -lpthread"
  2786             ;;
  2787         *-*-haiku*)
  2788             pthread_cflags="-D_REENTRANT"
  2789             pthread_lib=""
  2790             ;;
  2791         *-*-nto*)
  2792             pthread_cflags="-D_REENTRANT"
  2793             pthread_lib=""
  2794             ;;
  2795         *)
  2796             pthread_cflags="-D_REENTRANT"
  2797             pthread_lib="-lpthread"
  2798             ;;
  2799     esac
  2800     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2801         # Save the original compiler flags and libraries
  2802         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2803         # Add the pthread compiler flags and libraries
  2804         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2805         # Check to see if we have pthread support on this system
  2806         AC_MSG_CHECKING(for pthreads)
  2807         use_pthreads=no
  2808         AC_TRY_LINK([
  2809          #include <pthread.h>
  2810         ],[
  2811          pthread_attr_t type;
  2812          pthread_attr_init(&type);
  2813         ],[
  2814         use_pthreads=yes
  2815         ])
  2816         AC_MSG_RESULT($use_pthreads)
  2817         # Restore the compiler flags and libraries
  2818         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2819 
  2820         # Do futher testing if we have pthread support...
  2821         if test x$use_pthreads = xyes; then
  2822             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2823             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2824             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2825             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2826 
  2827             # Save the original compiler flags and libraries
  2828             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2829             # Add the pthread compiler flags and libraries
  2830             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2831 
  2832             # Check to see if recursive mutexes are available
  2833             AC_MSG_CHECKING(for recursive mutexes)
  2834             has_recursive_mutexes=no
  2835             if test x$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_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2842                 ],[
  2843                 has_recursive_mutexes=yes
  2844                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2845                 ])
  2846             fi
  2847             if test x$has_recursive_mutexes = xno; then
  2848                 AC_TRY_LINK([
  2849                   #define _GNU_SOURCE 1
  2850                   #include <pthread.h>
  2851                 ],[
  2852                   pthread_mutexattr_t attr;
  2853                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2854                 ],[
  2855                 has_recursive_mutexes=yes
  2856                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2857                 ])
  2858             fi
  2859             AC_MSG_RESULT($has_recursive_mutexes)
  2860 
  2861             # Check to see if pthread semaphore support is missing
  2862             if test x$enable_pthread_sem = xyes; then
  2863                 AC_MSG_CHECKING(for pthread semaphores)
  2864                 have_pthread_sem=no
  2865                 AC_TRY_COMPILE([
  2866                   #include <pthread.h>
  2867                   #include <semaphore.h>
  2868                 ],[
  2869                 ],[
  2870                 have_pthread_sem=yes
  2871                 ])
  2872                 AC_MSG_RESULT($have_pthread_sem)
  2873             fi
  2874             if test x$have_pthread_sem = xyes; then
  2875                 AC_MSG_CHECKING(for sem_timedwait)
  2876                 have_sem_timedwait=no
  2877                 AC_TRY_LINK([
  2878                   #include <pthread.h>
  2879                   #include <semaphore.h>
  2880                 ],[
  2881                   sem_timedwait(NULL, NULL);
  2882                 ],[
  2883                 have_sem_timedwait=yes
  2884                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2885                 ])
  2886                 AC_MSG_RESULT($have_sem_timedwait)
  2887             fi
  2888 
  2889             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2890             if test x$have_pthread_np_h = xyes; then
  2891                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2892             fi
  2893 
  2894             # Check to see if pthread naming is available
  2895             AC_MSG_CHECKING(for pthread_setname_np)
  2896             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2897               has_pthread_setname_np=yes
  2898               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2899             ],[
  2900               has_pthread_setname_np=no
  2901             ])
  2902             AC_MSG_RESULT($has_pthread_setname_np)
  2903 
  2904             AC_MSG_CHECKING(for pthread_set_name_np)
  2905             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2906               has_pthread_set_name_np=yes
  2907               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2908             ],[
  2909               has_pthread_set_name_np=no
  2910             ])
  2911             AC_MSG_RESULT($has_pthread_set_name_np)
  2912 
  2913             # Restore the compiler flags and libraries
  2914             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2915 
  2916             # Basic thread creation functions
  2917             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2918 
  2919             # Semaphores
  2920             # We can fake these with mutexes and condition variables if necessary
  2921             if test x$have_pthread_sem = xyes; then
  2922                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2923             else
  2924                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2925             fi
  2926 
  2927             # Mutexes
  2928             # We can fake these with semaphores if necessary
  2929             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2930 
  2931             # Condition variables
  2932             # We can fake these with semaphores and mutexes if necessary
  2933             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2934 
  2935             # Thread local storage
  2936             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2937 
  2938             have_threads=yes
  2939         fi
  2940     fi
  2941 }
  2942 
  2943 dnl Determine whether the compiler can produce Windows executables
  2944 CheckWINDOWS()
  2945 {
  2946     AC_MSG_CHECKING(Windows compiler)
  2947     have_win32_gcc=no
  2948     AC_TRY_COMPILE([
  2949      #include <windows.h>
  2950     ],[
  2951     ],[
  2952     have_win32_gcc=yes
  2953     ])
  2954     AC_MSG_RESULT($have_win32_gcc)
  2955     if test x$have_win32_gcc != xyes; then
  2956        AC_MSG_ERROR([
  2957 *** Your compiler ($CC) does not produce Windows executables!
  2958        ])
  2959     fi
  2960 
  2961     AC_MSG_CHECKING(Windows CE)
  2962     have_wince=no
  2963     AC_TRY_COMPILE([
  2964 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2965 #error This is not Windows CE
  2966 #endif
  2967     ],[
  2968     ],[
  2969     have_wince=yes
  2970        AC_MSG_ERROR([
  2971 *** Sorry, Windows CE is no longer supported.
  2972        ])
  2973     ])
  2974     AC_MSG_RESULT($have_wince)
  2975 
  2976     # This fixes Windows stack alignment with newer GCC
  2977     CheckStackBoundary
  2978 }
  2979 
  2980 dnl Find the DirectX includes and libraries
  2981 CheckDIRECTX()
  2982 {
  2983     AC_ARG_ENABLE(directx,
  2984 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2985                   , enable_directx=yes)
  2986     if test x$enable_directx = xyes; then
  2987         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2988         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2989         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2990         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2991         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2992         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2993         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2994         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  2995         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  2996         AC_TRY_COMPILE([
  2997 #include <windows.h>
  2998 #include <xinput.h>
  2999 XINPUT_GAMEPAD_EX x1;
  3000         ],[],[have_xinput_gamepadex=yes])
  3001         AC_TRY_COMPILE([
  3002 #include <windows.h>
  3003 #include <xinput.h>
  3004 XINPUT_STATE_EX s1;
  3005         ],[],[have_xinput_stateex=yes])
  3006 
  3007         if test x$have_ddraw = xyes; then
  3008             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  3009         fi
  3010         if test x$have_dinput = xyes; then
  3011             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3012         fi
  3013         if test x$have_dsound = xyes; then
  3014             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3015         fi
  3016         if test x$have_dxgi = xyes; then
  3017             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3018         fi
  3019         if test x$have_xinput = xyes; then
  3020             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3021         fi
  3022         if test x$have_xinput_gamepadex = xyes; then
  3023             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3024         fi
  3025         if test x$have_xinput_stateex = xyes; then
  3026             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3027         fi
  3028 
  3029         SUMMARY_video="${SUMMARY_video} directx"
  3030         SUMMARY_audio="${SUMMARY_audio} directx"
  3031 
  3032         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3033         # FIXME:  ...so force it off for now.
  3034         case "$host" in
  3035             *-*-cygwin*)
  3036             have_dinput=false
  3037             ;;
  3038         esac
  3039     fi
  3040 }
  3041 
  3042 dnl Check for the dlfcn.h interface for dynamically loading objects
  3043 CheckDLOPEN()
  3044 {
  3045     AC_ARG_ENABLE(sdl-dlopen,
  3046 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3047                   , enable_sdl_dlopen=yes)
  3048     if test x$enable_sdl_dlopen = xyes; then
  3049         AC_MSG_CHECKING(for dlopen)
  3050         have_dlopen=no
  3051         AC_TRY_COMPILE([
  3052          #include <dlfcn.h>
  3053         ],[
  3054          void *handle = dlopen("", RTLD_NOW);
  3055          const char *loaderror = (char *) dlerror();
  3056         ],[
  3057         have_dlopen=yes
  3058         ])
  3059         AC_MSG_RESULT($have_dlopen)
  3060 
  3061         if test x$have_dlopen = xyes; then
  3062             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3063                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3064                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3065             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3066             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3067             have_loadso=yes
  3068         fi
  3069     fi
  3070 }
  3071 
  3072 dnl Check for the usbhid(3) library on *BSD
  3073 CheckUSBHID()
  3074 {
  3075     case "$host" in
  3076         *-*-*bsd*)
  3077             if test x$enable_joystick = xyes; then
  3078                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3079                 if test x$have_libusbhid = xyes; then
  3080                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3081                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3082                     USB_LIBS="$USB_LIBS -lusbhid"
  3083                 else
  3084                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3085                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3086                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3087                 fi
  3088                     
  3089                 save_CFLAGS="$CFLAGS"
  3090                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3091 
  3092                 AC_MSG_CHECKING(for usbhid)
  3093                 have_usbhid=no
  3094                 AC_TRY_COMPILE([
  3095                   #include <sys/types.h>
  3096                   #if defined(HAVE_USB_H)
  3097                   #include <usb.h>
  3098                   #endif
  3099                   #ifdef __DragonFly__
  3100                   # include <bus/usb/usb.h>
  3101                   # include <bus/usb/usbhid.h>
  3102                   #else
  3103                   # include <dev/usb/usb.h>
  3104                   # include <dev/usb/usbhid.h>
  3105                   #endif
  3106                   #if defined(HAVE_USBHID_H)
  3107                   #include <usbhid.h>
  3108                   #elif defined(HAVE_LIBUSB_H)
  3109                   #include <libusb.h>
  3110                   #elif defined(HAVE_LIBUSBHID_H)
  3111                   #include <libusbhid.h>
  3112                   #endif
  3113                 ],[
  3114                   struct report_desc *repdesc;
  3115                   struct usb_ctl_report *repbuf;
  3116                   hid_kind_t hidkind;
  3117                 ],[
  3118                 have_usbhid=yes
  3119                 ])
  3120                 AC_MSG_RESULT($have_usbhid)
  3121 
  3122                 if test x$have_usbhid = xyes; then
  3123                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3124                     have_usbhid_ucr_data=no
  3125                     AC_TRY_COMPILE([
  3126                       #include <sys/types.h>
  3127                       #if defined(HAVE_USB_H)
  3128                       #include <usb.h>
  3129                       #endif
  3130                       #ifdef __DragonFly__
  3131                       # include <bus/usb/usb.h>
  3132                       # include <bus/usb/usbhid.h>
  3133                       #else
  3134                       # include <dev/usb/usb.h>
  3135                       # include <dev/usb/usbhid.h>
  3136                       #endif
  3137                       #if defined(HAVE_USBHID_H)
  3138                       #include <usbhid.h>
  3139                       #elif defined(HAVE_LIBUSB_H)
  3140                       #include <libusb.h>
  3141                       #elif defined(HAVE_LIBUSBHID_H)
  3142                       #include <libusbhid.h>
  3143                       #endif
  3144                     ],[
  3145                       struct usb_ctl_report buf;
  3146                       if (buf.ucr_data) { }
  3147                     ],[
  3148                     have_usbhid_ucr_data=yes
  3149                     ])
  3150                     if test x$have_usbhid_ucr_data = xyes; then
  3151                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3152                     fi
  3153                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3154                     
  3155                     AC_MSG_CHECKING(for new usbhid API)
  3156                     have_usbhid_new=no
  3157                     AC_TRY_COMPILE([
  3158                       #include <sys/types.h>
  3159                       #if defined(HAVE_USB_H)
  3160                       #include <usb.h>
  3161                       #endif
  3162                       #ifdef __DragonFly__
  3163                       #include <bus/usb/usb.h>
  3164                       #include <bus/usb/usbhid.h>
  3165                       #else
  3166                       #include <dev/usb/usb.h>
  3167                       #include <dev/usb/usbhid.h>
  3168                       #endif
  3169                       #if defined(HAVE_USBHID_H)
  3170                       #include <usbhid.h>
  3171                       #elif defined(HAVE_LIBUSB_H)
  3172                       #include <libusb.h>
  3173                       #elif defined(HAVE_LIBUSBHID_H)
  3174                       #include <libusbhid.h>
  3175                       #endif
  3176                     ],[
  3177                       report_desc_t d;
  3178                       hid_start_parse(d, 1, 1);
  3179                     ],[
  3180                     have_usbhid_new=yes
  3181                     ])
  3182                     if test x$have_usbhid_new = xyes; then
  3183                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3184                     fi
  3185                     AC_MSG_RESULT($have_usbhid_new)
  3186 
  3187                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3188                     have_machine_joystick=no
  3189                     AC_TRY_COMPILE([
  3190                       #include <machine/joystick.h>
  3191                     ],[
  3192                       struct joystick t;
  3193                     ],[
  3194                     have_machine_joystick=yes
  3195                     ])
  3196                     if test x$have_machine_joystick = xyes; then
  3197                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3198                     fi
  3199                     AC_MSG_RESULT($have_machine_joystick)
  3200 
  3201                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3202                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3203                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3204                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3205                     have_joystick=yes
  3206                 fi
  3207                 CFLAGS="$save_CFLAGS"
  3208             fi
  3209         ;;
  3210     esac
  3211 }
  3212 
  3213 dnl Check for clock_gettime()
  3214 CheckClockGettime()
  3215 {
  3216     AC_ARG_ENABLE(clock_gettime,
  3217 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3218                   , enable_clock_gettime=yes)
  3219     if test x$enable_clock_gettime = xyes; then
  3220         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3221         if test x$have_clock_gettime = xyes; then
  3222             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3223             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3224         else
  3225             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3226             if test x$have_clock_gettime = xyes; then
  3227                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3228                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3229             fi
  3230         fi
  3231     fi
  3232 }
  3233 
  3234 dnl Check for a valid linux/version.h
  3235 CheckLinuxVersion()
  3236 {
  3237     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3238     if test x$have_linux_version_h = xyes; then
  3239         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3240     fi
  3241 }
  3242 
  3243 dnl Check if we want to use RPATH
  3244 CheckRPATH()
  3245 {
  3246     AC_ARG_ENABLE(rpath,
  3247 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3248                   , enable_rpath=yes)
  3249 }
  3250 
  3251 dnl Do this on all platforms, before everything else (other things might want to override it).
  3252 CheckWarnAll
  3253 
  3254 dnl Set up the configuration based on the host platform!
  3255 case "$host" in
  3256     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3257         case "$host" in
  3258             *-*-android*)
  3259                 # Android
  3260                 ARCH=android
  3261                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3262                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3263                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3264                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3265                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3266                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3267 
  3268                 if test x$enable_video = xyes; then
  3269                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3270                     # FIXME: confdefs? Not AC_DEFINE?
  3271                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3272                     SUMMARY_video="${SUMMARY_video} android"
  3273                 fi
  3274                 ;;
  3275             *-*-linux*)         ARCH=linux ;;
  3276             *-*-uclinux*)       ARCH=linux ;;
  3277             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3278             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3279             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3280             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3281             *-*-bsdi*)          ARCH=bsdi ;;
  3282             *-*-freebsd*)       ARCH=freebsd ;;
  3283             *-*-dragonfly*)     ARCH=freebsd ;;
  3284             *-*-netbsd*)        ARCH=netbsd ;;
  3285             *-*-openbsd*)       ARCH=openbsd ;;
  3286             *-*-sysv5*)         ARCH=sysv5 ;;
  3287             *-*-solaris*)       ARCH=solaris ;;
  3288             *-*-hpux*)          ARCH=hpux ;;
  3289             *-*-aix*)           ARCH=aix ;;
  3290             *-*-minix*)         ARCH=minix ;;
  3291             *-*-nto*)           ARCH=nto
  3292                 CheckQNXVideo
  3293                 ;;
  3294         esac
  3295         CheckVisibilityHidden
  3296         CheckDeclarationAfterStatement
  3297         CheckDummyVideo
  3298         CheckDiskAudio
  3299         CheckDummyAudio
  3300         CheckDLOPEN
  3301         CheckOSS
  3302         CheckALSA
  3303         CheckPulseAudio
  3304         CheckJACK
  3305         CheckARTSC
  3306         CheckESD
  3307         CheckNAS
  3308         CheckSNDIO
  3309         CheckFusionSound
  3310         CheckLibSampleRate
  3311         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3312         CheckRPI
  3313         CheckX11
  3314         CheckDirectFB
  3315         CheckKMSDRM
  3316         CheckOpenGLX11
  3317         CheckOpenGLESX11
  3318         CheckVulkan
  3319         CheckMir
  3320         CheckWayland
  3321         CheckLibUDev
  3322         CheckDBus
  3323         CheckIME
  3324         CheckIBus
  3325         CheckFcitx
  3326         case $ARCH in
  3327           linux)
  3328               CheckInputEvents
  3329               CheckInputKD
  3330           ;;
  3331         esac
  3332         CheckTslib
  3333         CheckUSBHID
  3334         CheckPTHREAD
  3335         CheckClockGettime
  3336         CheckLinuxVersion
  3337         CheckRPATH
  3338         CheckVivanteVideo
  3339 
  3340         # Set up files for the audio library
  3341         if test x$enable_audio = xyes; then
  3342           case $ARCH in
  3343             sysv5|solaris|hpux)
  3344                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3345                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3346                 SUMMARY_audio="${SUMMARY_audio} sun"
  3347                 have_audio=yes
  3348             ;;
  3349             netbsd)  # Don't use this on OpenBSD, it's busted.
  3350                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3351                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3352                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3353                 have_audio=yes
  3354             ;;
  3355             aix)
  3356                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3357                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3358                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3359                 have_audio=yes
  3360             ;;
  3361             android)
  3362                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3363                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3364                 SUMMARY_audio="${SUMMARY_audio} android"
  3365                 have_audio=yes
  3366             ;;
  3367             nto)
  3368                 CheckQNXAudio
  3369             ;;
  3370           esac
  3371         fi
  3372         # Set up files for the joystick library
  3373         if test x$enable_joystick = xyes; then
  3374           case $ARCH in
  3375             linux)
  3376                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3377                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3378                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3379                 have_joystick=yes
  3380             ;;
  3381             android)
  3382                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3383                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3384                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3385                 have_joystick=yes
  3386             ;;
  3387           esac
  3388         fi
  3389         # Set up files for the haptic library
  3390         if test x$enable_haptic = xyes; then
  3391           case $ARCH in
  3392             linux)
  3393                 if test x$use_input_events = xyes; then
  3394                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3395                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3396                     have_haptic=yes
  3397                 fi
  3398             ;;
  3399             android)
  3400                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3401                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3402                 have_haptic=yes
  3403             ;;
  3404           esac
  3405         fi
  3406         # Set up files for the power library
  3407         if test x$enable_power = xyes; then
  3408              case $ARCH in
  3409                linux)
  3410                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3411                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3412                    have_power=yes
  3413                ;;
  3414                android)
  3415                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3416                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3417                    have_power=yes
  3418                ;;
  3419              esac
  3420         fi
  3421         # Set up files for the filesystem library
  3422         if test x$enable_filesystem = xyes; then
  3423              case $ARCH in
  3424                android)
  3425                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3426                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3427                    have_filesystem=yes
  3428                ;;
  3429                *)
  3430                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3431                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3432                    have_filesystem=yes
  3433                ;;
  3434              esac
  3435         fi
  3436         # Set up files for the timer library
  3437         if test x$enable_timers = xyes; then
  3438             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3439             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3440             have_timers=yes
  3441         fi
  3442         # Set up files for udev hotplugging support
  3443         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3444             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3445         fi
  3446         # Set up files for evdev input
  3447         if test x$use_input_events = xyes; then
  3448             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3449         fi       
  3450         # Set up other core UNIX files
  3451         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3452         ;;
  3453     *-*-cygwin* | *-*-mingw32*)
  3454         ARCH=win32
  3455         if test "$build" != "$host"; then # cross-compiling
  3456             # Default cross-compile location
  3457             ac_default_prefix=/usr/local/cross-tools/$host
  3458         else
  3459             # Look for the location of the tools and install there
  3460             if test "$BUILD_PREFIX" != ""; then
  3461                 ac_default_prefix=$BUILD_PREFIX
  3462             fi
  3463         fi
  3464         CheckDeclarationAfterStatement
  3465         CheckDummyVideo
  3466         CheckDiskAudio
  3467         CheckDummyAudio
  3468         CheckWINDOWS
  3469         CheckWINDOWSGL
  3470         CheckWINDOWSGLES
  3471         CheckVulkan
  3472         CheckDIRECTX
  3473 
  3474         # Set up the core platform files
  3475         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3476 
  3477         # Set up files for the video library
  3478         if test x$enable_video = xyes; then
  3479             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3480             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3481             have_video=yes
  3482             AC_ARG_ENABLE(render-d3d,
  3483 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3484                                 , enable_render_d3d=yes)
  3485             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3486                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3487             fi
  3488             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3489                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3490             fi
  3491         fi
  3492         # Set up files for the audio library
  3493         if test x$enable_audio = xyes; then
  3494             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3495             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3496             if test x$have_dsound = xyes; then
  3497                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3498                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3499             fi
  3500             if test x$have_wasapi = xyes; then
  3501                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3502                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3503             fi
  3504             have_audio=yes
  3505         fi
  3506         # Set up files for the joystick library
  3507         if test x$enable_joystick = xyes; then
  3508             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3509                 if test x$have_xinput = xyes; then
  3510                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3511                 fi
  3512                 if test x$have_dinput = xyes; then
  3513                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3514                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3515                 fi
  3516             else
  3517                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3518             fi
  3519             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3520             have_joystick=yes
  3521         fi
  3522         if test x$enable_haptic = xyes; then
  3523             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3524                 if test x$have_xinput = xyes; then
  3525                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3526                 fi
  3527                 if test x$have_dinput = xyes; then
  3528                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3529                 fi
  3530                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3531                 have_haptic=yes
  3532             fi
  3533         fi
  3534         if test x$enable_power = xyes; then
  3535             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3536             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3537             have_power=yes
  3538         fi
  3539         if test x$enable_filesystem = xyes; then
  3540             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3541             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3542             have_filesystem=yes
  3543         fi
  3544         # Set up files for the thread library
  3545         if test x$enable_threads = xyes; then
  3546             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3547             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3548             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3549             have_threads=yes
  3550         fi
  3551         # Set up files for the timer library
  3552         if test x$enable_timers = xyes; then
  3553             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3554             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3555             have_timers=yes
  3556         fi
  3557         # Set up files for the shared object loading library
  3558         if test x$enable_loadso = xyes; then
  3559             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3560             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3561             have_loadso=yes
  3562         fi
  3563         # Set up the system libraries we need
  3564         if test -f /lib/w32api/libuuid.a; then
  3565             LIBUUID=/lib/w32api/libuuid.a
  3566         else
  3567             LIBUUID=-luuid
  3568         fi
  3569         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3570         # The Windows platform requires special setup
  3571         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3572         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3573         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3574         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3575 
  3576         # Check to see if this is a mingw or cygwin build
  3577         have_mingw32=
  3578         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3579         if test x$have_mingw32 = xyes; then
  3580             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3581         else
  3582             SDL_LIBS="-lcygwin $SDL_LIBS"
  3583         fi
  3584         ;;
  3585 
  3586     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3587     *-*-beos*)
  3588         AC_MSG_ERROR([
  3589 *** BeOS support has been removed as of SDL 2.0.2.
  3590         ])
  3591         ;;
  3592 
  3593     *-*-haiku*)
  3594         ARCH=haiku
  3595         ac_default_prefix=/boot/system
  3596         CheckDummyVideo
  3597         CheckDiskAudio
  3598         CheckDummyAudio
  3599         CheckDLOPEN
  3600         CheckHaikuVideo
  3601         CheckHaikuGL
  3602         CheckPTHREAD
  3603 
  3604         # Set up files for the audio library
  3605         if test x$enable_audio = xyes; then
  3606             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3607             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3608             SUMMARY_audio="${SUMMARY_audio} haiku"
  3609             have_audio=yes
  3610         fi
  3611         # Set up files for the joystick library
  3612         if test x$enable_joystick = xyes; then
  3613             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3614             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3615             have_joystick=yes
  3616         fi
  3617         # Set up files for the timer library
  3618         if test x$enable_timers = xyes; then
  3619             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3620             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3621             have_timers=yes
  3622         fi
  3623         # Set up files for the system power library
  3624         if test x$enable_power = xyes; then
  3625             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3626             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3627             have_power=yes
  3628         fi
  3629         # Set up files for the system filesystem library
  3630         if test x$enable_filesystem = xyes; then
  3631             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3632             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3633             have_filesystem=yes
  3634         fi
  3635         # The Haiku platform requires special setup.
  3636         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3637         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3638         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3639         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3640         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3641         ;;
  3642     arm*-apple-darwin*|*-ios-*)
  3643         ARCH=ios
  3644 
  3645         CheckVisibilityHidden
  3646         CheckDeclarationAfterStatement
  3647         CheckDummyVideo
  3648         CheckDiskAudio
  3649         CheckDummyAudio
  3650         CheckDLOPEN
  3651         CheckMETAL
  3652         CheckVulkan
  3653         CheckPTHREAD
  3654 
  3655         # Set up files for the audio library
  3656         if test x$enable_audio = xyes; then
  3657             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3658             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3659             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3660             have_audio=yes
  3661         fi
  3662         # Set up files for the joystick library
  3663         if test x$enable_joystick = xyes; then
  3664             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3665             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3666             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3667             have_joystick=yes
  3668         fi
  3669         # Set up files for the haptic library
  3670         #if test x$enable_haptic = xyes; then
  3671         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3672         #    have_haptic=yes
  3673         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3674         #fi
  3675         # Set up files for the power library
  3676         if test x$enable_power = xyes; then
  3677             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3678             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3679             have_power=yes
  3680         fi
  3681         # Set up files for the filesystem library
  3682         if test x$enable_filesystem = xyes; then
  3683             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3684             have_filesystem=yes
  3685         fi
  3686         # Set up additional files for the file library
  3687         if test x$enable_file = xyes; then
  3688             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3689             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3690         fi
  3691         # Set up files for the timer library
  3692         if test x$enable_timers = xyes; then
  3693             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3694             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3695             have_timers=yes
  3696         fi
  3697         # Set up other core UNIX files
  3698         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3699         # The iOS platform requires special setup.
  3700         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3701         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3702         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3703         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3704         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3705         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3706         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3707         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3708         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3709         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3710         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3711         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3712         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3713         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3714         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3715         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3716         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3717 
  3718         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3719             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Metal"
  3720         fi
  3721         ;;
  3722     *-*-darwin* )
  3723         # This could be either full "Mac OS X", or plain "Darwin" which is
  3724         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3725         # Next line is broken, and a few files below require Mac OS X (full)
  3726         ARCH=macosx
  3727 
  3728         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3729         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3730         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3731 
  3732         CheckVisibilityHidden
  3733         CheckDeclarationAfterStatement
  3734         CheckDummyVideo
  3735         CheckDiskAudio
  3736         CheckDummyAudio
  3737         CheckDLOPEN
  3738         CheckCOCOA
  3739         CheckMETAL
  3740         CheckX11
  3741         CheckMacGL
  3742         CheckOpenGLX11
  3743         CheckVulkan
  3744         CheckPTHREAD
  3745 
  3746         # Set up files for the audio library
  3747         if test x$enable_audio = xyes; then
  3748             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3749             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3750             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3751             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3752             have_audio=yes
  3753         fi
  3754         # Set up files for the joystick library
  3755         if test x$enable_joystick = xyes; then
  3756             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3757             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3758             have_joystick=yes
  3759         fi
  3760         # Set up files for the haptic library
  3761         if test x$enable_haptic = xyes; then
  3762             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3763             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3764             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3765             have_haptic=yes
  3766         fi
  3767         # Set up files for the power library
  3768         if test x$enable_power = xyes; then
  3769             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3770             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3771             have_power=yes
  3772         fi
  3773         # Set up files for the filesystem library
  3774         if test x$enable_filesystem = xyes; then
  3775             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3776             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3777             have_filesystem=yes
  3778         fi
  3779         # Set up files for the timer library
  3780         if test x$enable_timers = xyes; then
  3781             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3782             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3783             have_timers=yes
  3784         fi
  3785         # Set up additional files for the file library
  3786         if test x$enable_file = xyes; then
  3787             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3788         fi
  3789         # Set up other core UNIX files
  3790         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3791         # The Mac OS X platform requires special setup.
  3792         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3793         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3794         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3795         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3796         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3797         ;;
  3798     *-nacl|*-pnacl)
  3799         ARCH=nacl
  3800         CheckNativeClient
  3801         CheckDummyAudio
  3802         CheckDummyVideo
  3803         CheckInputEvents
  3804         CheckPTHREAD
  3805         
  3806         # Set up files for the timer library
  3807         if test x$enable_timers = xyes; then
  3808             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3809             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3810             have_timers=yes
  3811         fi
  3812         
  3813         if test x$enable_filesystem = xyes; then
  3814             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3815             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3816             have_filesystem=yes
  3817         fi
  3818         ;;
  3819     *-*-emscripten* )
  3820         if test x$enable_video = xyes; then
  3821             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3822             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3823             have_video=yes
  3824             SUMMARY_video="${SUMMARY_video} emscripten"
  3825         fi
  3826 
  3827         if test x$enable_audio = xyes; then
  3828             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3829             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3830             have_audio=yes
  3831             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3832         fi
  3833 
  3834         CheckVisibilityHidden
  3835         CheckDeclarationAfterStatement
  3836         CheckDummyVideo
  3837         CheckDiskAudio
  3838         CheckDummyAudio
  3839         CheckDLOPEN
  3840         CheckClockGettime
  3841         CheckEmscriptenGLES
  3842 
  3843          # Set up files for the power library
  3844         if test x$enable_power = xyes; then
  3845             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3846             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3847             have_power=yes
  3848         fi
  3849         
  3850         # Set up files for the power library
  3851         if test x$enable_joystick = xyes; then
  3852             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3853             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3854             have_joystick=yes
  3855         fi
  3856 
  3857         # Set up files for the filesystem library
  3858         if test x$enable_filesystem = xyes; then
  3859             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3860             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3861             have_filesystem=yes
  3862         fi
  3863         # Set up files for the timer library
  3864         if test x$enable_timers = xyes; then
  3865             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3866             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3867             have_timers=yes
  3868         fi
  3869         ;;
  3870     *)
  3871         AC_MSG_ERROR([
  3872 *** Unsupported host:  Please add to configure.in
  3873         ])
  3874         ;;
  3875 esac
  3876 
  3877 # Verify that we have all the platform specific files we need
  3878 
  3879 if test x$have_joystick != xyes; then
  3880     if test x$enable_joystick = xyes; then
  3881         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3882     fi
  3883     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3884 fi
  3885 if test x$have_haptic != xyes; then
  3886     if test x$enable_haptic = xyes; then
  3887         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3888     fi
  3889     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3890 fi
  3891 if test x$have_threads != xyes; then
  3892     if test x$enable_threads = xyes; then
  3893         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3894     fi
  3895     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3896 fi
  3897 if test x$have_timers != xyes; then
  3898     if test x$enable_timers = xyes; then
  3899         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3900     fi
  3901     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3902 fi
  3903 if test x$have_filesystem != xyes; then
  3904     if test x$enable_filesystem = xyes; then
  3905         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3906     fi
  3907     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3908 fi
  3909 if test x$have_loadso != xyes; then
  3910     if test x$enable_loadso = xyes; then
  3911         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3912     fi
  3913     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3914 fi
  3915 if test x$SDLMAIN_SOURCES = x; then
  3916     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3917 fi
  3918 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3919 
  3920 if test x$video_wayland = xyes; then
  3921     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3922     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3923     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3924         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3925     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3926         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3927     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3928     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3929 
  3930     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3931 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3932 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3933 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3934 
  3935     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3936 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3937 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3938 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3939 
  3940     WAYLAND_CORE_PROTOCOL_OBJECT="
  3941 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3942 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3943 
  3944     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3945         do echo ; echo \$p | sed\
  3946         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3947 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3948 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3949 
  3950     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3951         do echo ; echo \$p | sed\
  3952         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3953 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3954 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3955 
  3956     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3957         do echo ; echo \$p | sed\
  3958         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3959 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3960 
  3961     WAYLAND_PROTOCOLS_DEPENDS="
  3962 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3963 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3964 $WAYLAND_CORE_PROTOCOL_OBJECT
  3965 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3966 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3967 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3968 "
  3969 fi
  3970 
  3971 OBJECTS=`echo $SOURCES`
  3972 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3973 for EXT in asm cc m c S; do
  3974     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3975     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3976 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3977 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3978 done
  3979 
  3980 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3981 
  3982 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3983 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3984 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3985 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3986 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3987 	\\$(WINDRES) \\$< \\$@,g"`
  3988 
  3989 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3990 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3991 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3992 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3993 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3994 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3995 
  3996 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3997 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3998 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3999 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4000 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4001 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4002 
  4003 # Set runtime shared library paths as needed
  4004 
  4005 if test "x$enable_rpath" = "xyes"; then
  4006   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  4007     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  4008 
  4009     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  4010     have_enable_new_dtags=no
  4011     save_LDFLAGS="$LDFLAGS"
  4012     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  4013     AC_TRY_LINK([
  4014     ],[
  4015     ],[
  4016     have_enable_new_dtags=yes
  4017     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4018     ])
  4019     LDFLAGS="$save_LDFLAGS"
  4020     AC_MSG_RESULT($have_enable_new_dtags)
  4021   fi
  4022   if test $ARCH = solaris; then
  4023     SDL_RLD_FLAGS="-R\${libdir}"
  4024   fi
  4025 else
  4026   SDL_RLD_FLAGS=""
  4027 fi
  4028 
  4029 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4030 
  4031 dnl Expand the cflags and libraries needed by apps using SDL
  4032 AC_SUBST(SDL_CFLAGS)
  4033 AC_SUBST(SDL_LIBS)
  4034 AC_SUBST(SDL_STATIC_LIBS)
  4035 AC_SUBST(SDL_RLD_FLAGS)
  4036 if test x$enable_shared = xyes; then
  4037     ENABLE_SHARED_TRUE=
  4038     ENABLE_SHARED_FALSE="#"
  4039 else
  4040     ENABLE_SHARED_TRUE="#"
  4041     ENABLE_SHARED_FALSE=
  4042 fi
  4043 if test x$enable_static = xyes; then
  4044     ENABLE_STATIC_TRUE=
  4045     ENABLE_STATIC_FALSE="#"
  4046 else
  4047     ENABLE_STATIC_TRUE="#"
  4048     ENABLE_STATIC_FALSE=
  4049 fi
  4050 AC_SUBST(ENABLE_SHARED_TRUE)
  4051 AC_SUBST(ENABLE_SHARED_FALSE)
  4052 AC_SUBST(ENABLE_STATIC_TRUE)
  4053 AC_SUBST(ENABLE_STATIC_FALSE)
  4054 
  4055 dnl Expand the sources and objects needed to build the library
  4056 AC_SUBST(ac_aux_dir)
  4057 AC_SUBST(INCLUDE)
  4058 AC_SUBST(OBJECTS)
  4059 AC_SUBST(GEN_HEADERS)
  4060 AC_SUBST(GEN_OBJECTS)
  4061 AC_SUBST(VERSION_OBJECTS)
  4062 AC_SUBST(SDLMAIN_OBJECTS)
  4063 AC_SUBST(SDLTEST_OBJECTS)
  4064 AC_SUBST(BUILD_CFLAGS)
  4065 AC_SUBST(EXTRA_CFLAGS)
  4066 AC_SUBST(BUILD_LDFLAGS)
  4067 AC_SUBST(EXTRA_LDFLAGS)
  4068 AC_SUBST(WINDRES)
  4069 AC_SUBST(WAYLAND_SCANNER)
  4070 
  4071 cat >Makefile.rules <<__EOF__
  4072 
  4073 # Build rules for objects
  4074 -include \$(OBJECTS:.lo=.d)
  4075 
  4076 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4077 $srcdir/src/SDL.c: update-revision
  4078 $DEPENDS
  4079 $VERSION_DEPENDS
  4080 $SDLMAIN_DEPENDS
  4081 $SDLTEST_DEPENDS
  4082 $WAYLAND_PROTOCOLS_DEPENDS
  4083 __EOF__
  4084 
  4085 AC_CONFIG_FILES([
  4086     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4087 ])
  4088 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4089 
  4090 SUMMARY="SDL2 Configure Summary:\n"
  4091 if test x$enable_shared = xyes; then
  4092     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4093 fi
  4094 if test x$enable_static = xyes; then
  4095     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4096 fi
  4097 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4098 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4099 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4100 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4101 if test x$have_x = xyes; then
  4102     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4103 fi
  4104 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4105 if test x$have_samplerate_h_hdr = xyes; then
  4106     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4107 else
  4108     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4109 fi
  4110 if test x$have_libudev_h_hdr = xyes; then
  4111     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4112 else
  4113     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4114 fi
  4115 if test x$have_dbus_dbus_h_hdr = xyes; then
  4116     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4117 else
  4118     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4119 fi
  4120 if test x$enable_ime = xyes; then
  4121     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4122 else
  4123     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4124 fi
  4125 if test x$have_ibus_ibus_h_hdr = xyes; then
  4126     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4127 else
  4128     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4129 fi
  4130 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4131     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4132 else
  4133     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4134 fi
  4135 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4136 
  4137 AC_OUTPUT