configure.in
author Ryan C. Gordon <icculus@icculus.org>
Sat, 25 Apr 2015 20:49:26 -0400
changeset 9574 98c57505d74d
parent 9547 208ccaf7b64c
child 9620 2a9739ca6440
permissions -rw-r--r--
Only check for Linux-specific input APIs on Linux targets (thanks, Marcus!).

This is only for the configure script. The CMake project files already make
this Linux-exclusive.

Fixes Bugzilla #2659.
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=4
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=4
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(altivec,
   633 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   634                   , enable_altivec=yes)
   635     if test x$enable_altivec = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_altivec=no
   638         have_altivec_h_hdr=no
   639         altivec_CFLAGS="-maltivec"
   640         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   641 
   642         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   643         AC_TRY_COMPILE([
   644         #include <altivec.h>
   645         vector unsigned int vzero() {
   646             return vec_splat_u32(0);
   647         }
   648         ],[
   649         ],[
   650         have_gcc_altivec=yes
   651         have_altivec_h_hdr=yes
   652         ])
   653         AC_MSG_RESULT($have_gcc_altivec)
   654 
   655         if test x$have_gcc_altivec = xno; then
   656             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   657             AC_TRY_COMPILE([
   658             vector unsigned int vzero() {
   659                 return vec_splat_u32(0);
   660             }
   661             ],[
   662             ],[
   663             have_gcc_altivec=yes
   664             ])
   665             AC_MSG_RESULT($have_gcc_altivec)
   666         fi
   667 
   668         if test x$have_gcc_altivec = xno; then
   669             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   670             altivec_CFLAGS="-faltivec"
   671             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   672             AC_TRY_COMPILE([
   673             #include <altivec.h>
   674             vector unsigned int vzero() {
   675                 return vec_splat_u32(0);
   676             }
   677             ],[
   678             ],[
   679             have_gcc_altivec=yes
   680             have_altivec_h_hdr=yes
   681             ])
   682             AC_MSG_RESULT($have_gcc_altivec)
   683         fi
   684 
   685         if test x$have_gcc_altivec = xno; then
   686             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   687             AC_TRY_COMPILE([
   688             vector unsigned int vzero() {
   689                 return vec_splat_u32(0);
   690             }
   691             ],[
   692             ],[
   693             have_gcc_altivec=yes
   694             ])
   695             AC_MSG_RESULT($have_gcc_altivec)
   696         fi
   697         CFLAGS="$save_CFLAGS"
   698 
   699         if test x$have_gcc_altivec = xyes; then
   700             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   701             if test x$have_altivec_h_hdr = xyes; then
   702               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   703             fi
   704             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   705             SUMMARY_math="${SUMMARY_math} altivec"
   706         fi
   707     fi
   708 fi
   709 
   710 dnl See if the OSS audio interface is supported
   711 CheckOSS()
   712 {
   713     AC_ARG_ENABLE(oss,
   714 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   715                   , enable_oss=maybe)
   716 
   717     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   718     #  use sndio instead. So on there, we default to disabled. You can force
   719     #  it on if you really want, though.
   720     if test x$enable_oss = xmaybe; then
   721         enable_oss=yes
   722         case "$host" in
   723             *-*-openbsd*)
   724                 enable_oss=no;;
   725         esac
   726     fi
   727 
   728     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   729         AC_MSG_CHECKING(for OSS audio support)
   730         have_oss=no
   731         if test x$have_oss != xyes; then
   732             AC_TRY_COMPILE([
   733               #include <sys/soundcard.h>
   734             ],[
   735               int arg = SNDCTL_DSP_SETFRAGMENT;
   736             ],[
   737             have_oss=yes
   738             ])
   739         fi
   740         if test x$have_oss != xyes; then
   741             AC_TRY_COMPILE([
   742               #include <soundcard.h>
   743             ],[
   744               int arg = SNDCTL_DSP_SETFRAGMENT;
   745             ],[
   746             have_oss=yes
   747             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   748             ])
   749         fi
   750         AC_MSG_RESULT($have_oss)
   751         if test x$have_oss = xyes; then
   752             SUMMARY_audio="${SUMMARY_audio} oss"
   753             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   754             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   755             have_audio=yes
   756 
   757             # We may need to link with ossaudio emulation library
   758             case "$host" in
   759                 *-*-openbsd*|*-*-netbsd*)
   760                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   761             esac
   762         fi
   763     fi
   764 }
   765 
   766 dnl See if the ALSA audio interface is supported
   767 CheckALSA()
   768 {
   769     AC_ARG_ENABLE(alsa,
   770 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   771                   , enable_alsa=yes)
   772     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   773         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$alsa_save_CFLAGS"
   776         LDFLAGS="$alsa_save_LDFLAGS"
   777         LIBS="$alsa_save_LIBS"
   778         if test x$have_alsa = xyes; then
   779             AC_ARG_ENABLE(alsa-shared,
   780 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   781                           , enable_alsa_shared=yes)
   782             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   783 
   784             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   785             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   786             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   787             if test x$have_loadso != xyes && \
   788                test x$enable_alsa_shared = xyes; then
   789                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   790             fi
   791             if test x$have_loadso = xyes && \
   792                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   793                 echo "-- dynamic libasound -> $alsa_lib"
   794                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   795                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   796             else
   797                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   798                 SUMMARY_audio="${SUMMARY_audio} alsa"
   799             fi
   800             have_audio=yes
   801         fi
   802     fi
   803 }
   804 
   805 dnl Find the ESD includes and libraries
   806 CheckESD()
   807 {
   808     AC_ARG_ENABLE(esd,
   809 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   810                   , enable_esd=yes)
   811     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   812         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   813         if test x$have_esd = xyes; then
   814             AC_ARG_ENABLE(esd-shared,
   815 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   816                           , enable_esd_shared=yes)
   817             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   818 
   819             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   820             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   821             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   822             if test x$have_loadso != xyes && \
   823                test x$enable_esd_shared = xyes; then
   824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   825             fi
   826             if test x$have_loadso = xyes && \
   827                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   828                 echo "-- dynamic libesd -> $esd_lib"
   829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   830                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   831             else
   832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   833                 SUMMARY_audio="${SUMMARY_audio} esd"
   834             fi
   835             have_audio=yes
   836         fi
   837     fi
   838 }
   839 
   840 dnl Find PulseAudio
   841 CheckPulseAudio()
   842 {
   843     AC_ARG_ENABLE(pulseaudio,
   844 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   845                   , enable_pulseaudio=yes)
   846     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   847         audio_pulseaudio=no
   848 
   849         PULSEAUDIO_REQUIRED_VERSION=0.9
   850 
   851         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   852         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   853         if test x$PKG_CONFIG != xno; then
   854         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   855                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   856                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   857                 audio_pulseaudio=yes
   858             fi
   859         fi
   860         AC_MSG_RESULT($audio_pulseaudio)
   861 
   862         if test x$audio_pulseaudio = xyes; then
   863             AC_ARG_ENABLE(pulseaudio-shared,
   864 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   865                           , enable_pulseaudio_shared=yes)
   866             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   867 
   868             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   869             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   870             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   871             if test x$have_loadso != xyes && \
   872                test x$enable_pulseaudio_shared = xyes; then
   873                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   874             fi
   875             if test x$have_loadso = xyes && \
   876                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   877                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   878                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   879                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   880 
   881                 case "$host" in
   882                     # On Solaris, pulseaudio must be linked deferred explicitly
   883                     # to prevent undefined symbol failures.
   884                     *-*-solaris*)
   885                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   886                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   887                 esac
   888             else
   889                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   890                 SUMMARY_audio="${SUMMARY_audio} pulse"
   891             fi
   892             have_audio=yes
   893         fi
   894     fi
   895 }
   896 
   897 CheckARTSC()
   898 {
   899     AC_ARG_ENABLE(arts,
   900 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   901                   , enable_arts=yes)
   902     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   903         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   904         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   905             : # arts isn't installed
   906         else
   907             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   908             ARTS_LIBS=`$ARTSCONFIG --libs`
   909             AC_MSG_CHECKING(for aRts development environment)
   910             audio_arts=no
   911             save_CFLAGS="$CFLAGS"
   912             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   913             AC_TRY_COMPILE([
   914              #include <artsc.h>
   915             ],[
   916              arts_stream_t stream;
   917             ],[
   918             audio_arts=yes
   919             ])
   920             CFLAGS="$save_CFLAGS"
   921             AC_MSG_RESULT($audio_arts)
   922             if test x$audio_arts = xyes; then
   923                 AC_ARG_ENABLE(arts-shared,
   924 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   925                               , enable_arts_shared=yes)
   926                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   927 
   928                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   929                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   930                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   931                 if test x$have_loadso != xyes && \
   932                    test x$enable_arts_shared = xyes; then
   933                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   934                 fi
   935                 if test x$have_loadso = xyes && \
   936                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   937                     echo "-- dynamic libartsc -> $arts_lib"
   938                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   939                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
   940                 else
   941                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   942                     SUMMARY_audio="${SUMMARY_audio} arts"
   943                 fi
   944                 have_audio=yes
   945             fi
   946         fi
   947     fi
   948 }
   949 
   950 dnl See if the NAS audio interface is supported
   951 CheckNAS()
   952 {
   953     AC_ARG_ENABLE(nas,
   954 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   955                   , enable_nas=yes)
   956     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   957         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   958         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   959 
   960         AC_MSG_CHECKING(for NAS audio support)
   961         have_nas=no
   962 
   963         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   964             have_nas=yes
   965             NAS_LIBS="-laudio"
   966 
   967         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   968             have_nas=yes
   969             NAS_CFLAGS="-I/usr/X11R6/include/"
   970             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   971 
   972         fi
   973 
   974         AC_MSG_RESULT($have_nas)
   975 
   976         if test x$have_nas = xyes; then
   977             AC_ARG_ENABLE(nas-shared,
   978 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   979                           , enable_nas_shared=yes)
   980             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   981 
   982             if test x$have_loadso != xyes && \
   983                test x$enable_nas_shared = xyes; then
   984                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   985             fi
   986             if test x$have_loadso = xyes && \
   987                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   988                 echo "-- dynamic libaudio -> $nas_lib"
   989                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   990                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
   991             else
   992                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   993                 SUMMARY_audio="${SUMMARY_audio} nas"
   994             fi
   995 
   996             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   997             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   998             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   999             have_audio=yes
  1000         fi
  1001     fi
  1002 }
  1003 
  1004 dnl See if the sndio audio interface is supported
  1005 CheckSNDIO()
  1006 {
  1007     AC_ARG_ENABLE(sndio,
  1008 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1009                   , enable_sndio=yes)
  1010     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1011         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1012         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1013 
  1014         AC_MSG_CHECKING(for sndio audio support)
  1015         have_sndio=no
  1016 
  1017         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1018             have_sndio=yes
  1019             SNDIO_LIBS="-lsndio"
  1020         fi
  1021 
  1022         AC_MSG_RESULT($have_sndio)
  1023 
  1024         if test x$have_sndio = xyes; then
  1025             AC_ARG_ENABLE(sndio-shared,
  1026 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1027                           , enable_sndio_shared=yes)
  1028             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1029 
  1030             if test x$have_loadso != xyes && \
  1031                test x$enable_sndio_shared = xyes; then
  1032                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1033             fi
  1034             if test x$have_loadso = xyes && \
  1035                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1036                 echo "-- dynamic libsndio -> $sndio_lib"
  1037                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1038                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1039             else
  1040                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1041                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1042             fi
  1043 
  1044             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1045             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1046             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1047             have_audio=yes
  1048         fi
  1049     fi
  1050 }
  1051 
  1052 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1053 CheckDiskAudio()
  1054 {
  1055     AC_ARG_ENABLE(diskaudio,
  1056 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1057                   , enable_diskaudio=yes)
  1058     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1059         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1060         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1061         SUMMARY_audio="${SUMMARY_audio} disk"
  1062     fi
  1063 }
  1064 
  1065 dnl rcg03142006 See if the user wants the dummy audio driver...
  1066 CheckDummyAudio()
  1067 {
  1068     AC_ARG_ENABLE(dummyaudio,
  1069 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1070                   , enable_dummyaudio=yes)
  1071     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1072         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1073         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1074         SUMMARY_audio="${SUMMARY_audio} dummy"
  1075     fi
  1076 }
  1077 
  1078 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1079 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1080 CheckVisibilityHidden()
  1081 {
  1082     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1083     have_gcc_fvisibility=no
  1084 
  1085     visibility_CFLAGS="-fvisibility=hidden"
  1086     save_CFLAGS="$CFLAGS"
  1087     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1088     AC_TRY_COMPILE([
  1089     #if !defined(__GNUC__) || __GNUC__ < 4
  1090     #error SDL only uses visibility attributes in GCC 4 or newer
  1091     #endif
  1092     ],[
  1093     ],[
  1094     have_gcc_fvisibility=yes
  1095     ])
  1096     AC_MSG_RESULT($have_gcc_fvisibility)
  1097     CFLAGS="$save_CFLAGS"
  1098 
  1099     if test x$have_gcc_fvisibility = xyes; then
  1100         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1101     fi
  1102 }
  1103 
  1104 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1105 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1106 CheckStackBoundary()
  1107 {
  1108     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1109     have_gcc_preferred_stack_boundary=no
  1110 
  1111     save_CFLAGS="$CFLAGS"
  1112     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1113     AC_TRY_COMPILE([
  1114     int x = 0;
  1115     ],[
  1116     ],[
  1117     have_gcc_preferred_stack_boundary=yes
  1118     ])
  1119     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1120     CFLAGS="$save_CFLAGS"
  1121 
  1122     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1123         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 dnl See if GCC's -Wall is supported.
  1128 CheckWarnAll()
  1129 {
  1130     AC_MSG_CHECKING(for GCC -Wall option)
  1131     have_gcc_Wall=no
  1132 
  1133     save_CFLAGS="$CFLAGS"
  1134     CFLAGS="$save_CFLAGS -Wall"
  1135     AC_TRY_COMPILE([
  1136     int x = 0;
  1137     ],[
  1138     ],[
  1139     have_gcc_Wall=yes
  1140     ])
  1141     AC_MSG_RESULT($have_gcc_Wall)
  1142     CFLAGS="$save_CFLAGS"
  1143 
  1144     if test x$have_gcc_Wall = xyes; then
  1145         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1146 
  1147         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1148         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1149         need_gcc_Wno_multichar=no
  1150         case "$host" in
  1151             *-*-haiku*)
  1152                 need_gcc_Wno_multichar=yes
  1153                 ;;
  1154         esac
  1155         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1156         if test x$need_gcc_Wno_multichar = xyes; then
  1157             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1158         fi
  1159     fi
  1160 }
  1161 
  1162 dnl See if GCC's -Wshadow is supported.
  1163 CheckWarnShadow()
  1164 {
  1165     AC_MSG_CHECKING(for GCC -Wshadow option)
  1166     have_gcc_Wshadow=no
  1167 
  1168     save_CFLAGS="$CFLAGS"
  1169     CFLAGS="$save_CFLAGS -Wshadow"
  1170     AC_TRY_COMPILE([
  1171     int x = 0;
  1172     ],[
  1173     ],[
  1174     have_gcc_Wshadow=yes
  1175     ])
  1176     AC_MSG_RESULT($have_gcc_Wshadow)
  1177     CFLAGS="$save_CFLAGS"
  1178 
  1179     if test x$have_gcc_Wshadow = xyes; then
  1180         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wshadow"
  1181     fi
  1182 }
  1183 
  1184 dnl Check for Wayland
  1185 CheckWayland()
  1186 {
  1187     AC_ARG_ENABLE(video-wayland,
  1188 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1189                   ,enable_video_wayland=yes)
  1190 
  1191     AC_ARG_ENABLE(video-wayland-qt-touch,
  1192 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1193                   ,enable_video_wayland_qt_touch=yes)
  1194 
  1195     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1196         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1197         AC_MSG_CHECKING(for Wayland support)
  1198         video_wayland=no
  1199         if  test x$PKG_CONFIG != xno && \
  1200             test x$video_opengl_egl = xyes && \
  1201             test x$video_opengles_v2 = xyes; then
  1202             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1203                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1204                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1205                 video_wayland=yes
  1206             fi
  1207         fi
  1208         AC_MSG_RESULT($video_wayland)
  1209 
  1210         if test x$video_wayland = xyes; then
  1211             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1212             if test x$enable_video_wayland_qt_touch = xyes; then
  1213                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1214             fi
  1215             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1216             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1217             AC_ARG_ENABLE(wayland-shared,
  1218 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1219                           , enable_wayland_shared=maybe)
  1220 
  1221             dnl FIXME: Do BSD and OS X need special cases?
  1222             case "$host" in
  1223                 *)
  1224                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1225                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1226                     if test x$wayland_egl_lib = x; then
  1227                         dnl This works in Ubuntu 13.10, maybe others
  1228                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1229                     fi
  1230                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1231                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1232                     ;;
  1233             esac
  1234 
  1235             if test x$enable_wayland_shared = xmaybe; then
  1236                 enable_wayland_shared=yes
  1237             fi
  1238             if test x$have_loadso != xyes && \
  1239                test x$enable_wayland_shared = xyes; then
  1240                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1241                 enable_wayland_shared=no
  1242             fi
  1243             if test x$have_loadso = xyes && \
  1244                test x$enable_wayland_shared = xyes && \
  1245                test x$wayland_client_lib != x && \
  1246                test x$wayland_egl_lib != x && \
  1247                test x$wayland_cursor_lib != x && \
  1248                test x$xkbcommon_lib != x; then
  1249                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1250                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1251                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1252                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1253                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1254                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1255                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1256                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1257                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1258             else
  1259                 enable_wayland_shared=no
  1260                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1261                 SUMMARY_video="${SUMMARY_video} wayland"
  1262             fi
  1263             have_video=yes
  1264         fi
  1265     fi
  1266 }
  1267 
  1268 dnl Check for Mir
  1269 CheckMir()
  1270 {
  1271     AC_ARG_ENABLE(video-mir,
  1272 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1273                   ,enable_video_mir=yes)
  1274 
  1275     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1276         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1277         AC_MSG_CHECKING(for Mir support)
  1278         video_mir=no
  1279         if test x$PKG_CONFIG != xno; then
  1280             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1281                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1282                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1283                 save_CFLAGS="$CFLAGS"
  1284                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1285                 
  1286                 dnl This will disable Mir on Ubuntu < 14.04
  1287                 AC_TRY_COMPILE([
  1288                 #include <mir_toolkit/mir_client_library.h>
  1289                 ],[
  1290                     MirMotionToolType tool = mir_motion_tool_type_mouse;
  1291                 ],[
  1292                 video_mir=yes
  1293                 ])
  1294                 CFLAGS="$save_CFLAGS"
  1295             fi
  1296         fi
  1297         AC_MSG_RESULT($video_mir)
  1298 
  1299         if test x$video_mir = xyes; then
  1300             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1301             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1302             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1303             AC_ARG_ENABLE(mir-shared,
  1304 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1305                           , enable_mir_shared=maybe)
  1306 
  1307             dnl FIXME: Do BSD and OS X need special cases?
  1308             case "$host" in
  1309                 *)
  1310                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1311                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1312                     ;;
  1313             esac
  1314 
  1315             if test x$enable_mir_shared = xmaybe; then
  1316                 enable_mir_shared=yes
  1317             fi
  1318             if test x$have_loadso != xyes && \
  1319                test x$enable_mir_shared = xyes; then
  1320                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1321                 enable_mir_shared=no
  1322             fi
  1323             if test x$have_loadso = xyes && \
  1324                test x$enable_mir_shared = xyes && \
  1325                test x$mirclient_lib != x && \
  1326                test x$xkbcommon_lib != x; then
  1327                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1328                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1329                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1330                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1331                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1332             else
  1333                 enable_mir_shared=no
  1334                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1335                 SUMMARY_video="${SUMMARY_video} mir"
  1336             fi
  1337             have_video=yes
  1338         fi
  1339     fi
  1340 }
  1341 
  1342 dnl Check for Native Client stuff
  1343 CheckNativeClient()
  1344 {
  1345         AC_TRY_COMPILE([
  1346           #if !defined(__native_client__)
  1347           #error "NO NACL"
  1348           #endif
  1349         ],[
  1350         ],[
  1351         AC_DEFINE(SDL_VIDEO_DRIVER_NACL)
  1352         AC_DEFINE(SDL_AUDIO_DRIVER_NACL)
  1353         AC_DEFINE(HAVE_POW, 1, [ ])
  1354         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1355         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1356         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1357 
  1358         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1359 
  1360         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1361         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1362         SUMMARY_audio="${SUMMARY_audio} nacl"
  1363         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1364         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1365         ])
  1366 }
  1367 
  1368 
  1369 dnl Find the X11 include and library directories
  1370 CheckX11()
  1371 {
  1372 
  1373 
  1374     AC_ARG_ENABLE(video-x11,
  1375 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1376                   , enable_video_x11=yes)
  1377     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1378         case "$host" in
  1379             *-*-darwin*)
  1380                 # This isn't necessary for X11, but fixes GLX detection
  1381                 if test "x$x_includes" = xNONE && \
  1382                    test "x$x_libraries" = xNONE && \
  1383                    test -d /usr/X11R6/include && \
  1384                    test -d /usr/X11R6/lib; then
  1385                     x_includes="/usr/X11R6/include"
  1386                     x_libraries="/usr/X11R6/lib"
  1387                 fi
  1388                 ;;
  1389         esac
  1390         AC_PATH_X
  1391         AC_PATH_XTRA
  1392         if test x$have_x = xyes; then
  1393             AC_ARG_ENABLE(x11-shared,
  1394 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1395                           , enable_x11_shared=maybe)
  1396 
  1397             case "$host" in
  1398                 *-*-darwin*)
  1399                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1400                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1401                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1402                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1403                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1404                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1405                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1406                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1407                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1408                     ;;
  1409                 *-*-openbsd*)
  1410                     x11_lib='libX11.so'
  1411                     x11ext_lib='libXext.so'
  1412                     xcursor_lib='libXcursor.so'
  1413                     xinerama_lib='libXinerama.so'
  1414                     xinput_lib='libXi.so'
  1415                     xrandr_lib='libXrandr.so'
  1416                     xrender_lib='libXrender.so'
  1417                     xss_lib='libXss.so'
  1418                     xvidmode_lib='libXxf86vm.so'
  1419                     ;;
  1420                 *)
  1421                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1422                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1423                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1424                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1425                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1426                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1427                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1428                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1429                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1430                     ;;
  1431             esac
  1432 
  1433             if test x$ac_cv_func_shmat != xyes; then
  1434                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1435             fi
  1436             CFLAGS="$CFLAGS $X_CFLAGS"
  1437             LDFLAGS="$LDFLAGS $X_LIBS"
  1438 
  1439             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1440                             have_xext_h_hdr=yes,
  1441                             have_xext_h_hdr=no,
  1442                             [#include <X11/Xlib.h>
  1443                              #include <X11/Xproto.h>
  1444                             ])
  1445             if test x$have_xext_h_hdr != xyes; then
  1446                AC_MSG_ERROR([
  1447 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1448                ])
  1449             fi
  1450 
  1451             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1452             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1453             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1454 
  1455             # Needed so SDL applications can include SDL_syswm.h
  1456             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1457 
  1458             if test x$enable_x11_shared = xmaybe; then
  1459                 enable_x11_shared=yes
  1460             fi
  1461             if test x$have_loadso != xyes && \
  1462                test x$enable_x11_shared = xyes; then
  1463                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1464                 enable_x11_shared=no
  1465             fi
  1466             if test x$have_loadso = xyes && \
  1467                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1468                 echo "-- dynamic libX11 -> $x11_lib"
  1469                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1470                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1471                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1472                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1473             else
  1474                 enable_x11_shared=no
  1475                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1476                 SUMMARY_video="${SUMMARY_video} x11"
  1477             fi
  1478             have_video=yes
  1479 
  1480             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1481             have_const_param_XextAddDisplay=no
  1482             AC_TRY_COMPILE([
  1483               #include <X11/Xlib.h>
  1484               #include <X11/Xproto.h>
  1485               #include <X11/extensions/Xext.h>
  1486               #include <X11/extensions/extutil.h>
  1487               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1488             ],[
  1489             ],[
  1490             have_const_param_XextAddDisplay=yes
  1491             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1492             ])
  1493             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1494 
  1495             AC_MSG_CHECKING(for const parameter to _XData32)
  1496 	    have_const_param_xdata32=no
  1497 	    AC_TRY_COMPILE([
  1498 	      #include <X11/Xlibint.h>
  1499 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1500 	    ],[
  1501 	    ],[
  1502 	    have_const_param_xdata32=yes
  1503 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1504 	    ])
  1505 	    AC_MSG_RESULT($have_const_param_xdata32)
  1506 
  1507             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1508             AC_MSG_CHECKING([for XGenericEvent])
  1509             have_XGenericEvent=no
  1510             AC_TRY_COMPILE([
  1511               	#include <X11/Xlib.h>
  1512             ],[
  1513 Display *display;
  1514 XEvent event;
  1515 XGenericEventCookie *cookie = &event.xcookie;
  1516 XNextEvent(display, &event);
  1517 XGetEventData(display, cookie);
  1518 XFreeEventData(display, cookie);
  1519             ],[
  1520                 have_XGenericEvent=yes
  1521                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1522             ])
  1523             AC_MSG_RESULT($have_XGenericEvent)
  1524 
  1525             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1526 
  1527             AC_ARG_ENABLE(video-x11-xcursor,
  1528 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1529                             , enable_video_x11_xcursor=yes)
  1530             if test x$enable_video_x11_xcursor = xyes; then
  1531                 definitely_enable_video_x11_xcursor=no
  1532                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1533                                 have_xcursor_h_hdr=yes,
  1534                                 have_xcursor_h_hdr=no,
  1535                                 [#include <X11/Xlib.h>
  1536                                 ])
  1537                 if test x$have_xcursor_h_hdr = xyes; then
  1538                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1539                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1540                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1541                         definitely_enable_video_x11_xcursor=yes
  1542                     else
  1543                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1544                         if test x$have_xcursor_lib = xyes ; then
  1545                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1546                             definitely_enable_video_x11_xcursor=yes
  1547                         fi
  1548                     fi
  1549                 fi
  1550             fi
  1551             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1552                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1553                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1554             fi
  1555             AC_ARG_ENABLE(video-x11-xinerama,
  1556 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1557                             , enable_video_x11_xinerama=yes)
  1558             if test x$enable_video_x11_xinerama = xyes; then
  1559                 definitely_enable_video_x11_xinerama=no
  1560                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1561                                 have_xinerama_h_hdr=yes,
  1562                                 have_xinerama_h_hdr=no,
  1563                                 [#include <X11/Xlib.h>
  1564                                 ])
  1565                 if test x$have_xinerama_h_hdr = xyes; then
  1566                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1567                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1568                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1569                         definitely_enable_video_x11_xinerama=yes
  1570                     else
  1571                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1572                         if test x$have_xinerama_lib = xyes ; then
  1573                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1574                             definitely_enable_video_x11_xinerama=yes
  1575                         fi
  1576                     fi
  1577                 fi
  1578             fi
  1579             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1580                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1581                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1582             fi
  1583             AC_ARG_ENABLE(video-x11-xinput,
  1584 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1585                             , enable_video_x11_xinput=yes)
  1586             if test x$enable_video_x11_xinput = xyes; then
  1587                 definitely_enable_video_x11_xinput=no
  1588                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1589                                 have_xinput_h_hdr=yes,
  1590                                 have_xinput_h_hdr=no,
  1591                                 [#include <X11/Xlib.h>
  1592                                 ])
  1593                 if test x$have_xinput_h_hdr = xyes; then
  1594                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1595                         echo "-- dynamic libXi -> $xinput_lib"
  1596                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1597                         definitely_enable_video_x11_xinput=yes
  1598                     else
  1599                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1600                         if test x$have_xinput_lib = xyes ; then
  1601                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1602                             definitely_enable_video_x11_xinput=yes
  1603                         fi
  1604                     fi
  1605                 fi
  1606             fi
  1607             if test x$definitely_enable_video_x11_xinput = xyes; then
  1608                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1609                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1610                 AC_MSG_CHECKING(for xinput2 multitouch)
  1611             	have_xinput2_multitouch=no
  1612             	AC_TRY_COMPILE([
  1613               		#include <X11/Xlib.h>
  1614              		#include <X11/Xproto.h>
  1615 			#include <X11/extensions/XInput2.h>
  1616             	],[
  1617 int event_type = XI_TouchBegin;
  1618 XITouchClassInfo *t;
  1619             	],[
  1620             	have_xinput2_multitouch=yes
  1621             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1622                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1623             	])
  1624             	AC_MSG_RESULT($have_xinput2_multitouch)
  1625             fi
  1626             AC_ARG_ENABLE(video-x11-xrandr,
  1627 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1628                             , enable_video_x11_xrandr=yes)
  1629             if test x$enable_video_x11_xrandr = xyes; then
  1630                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1631                 definitely_enable_video_x11_xrandr=no
  1632                 have_xrandr_h_hdr=no
  1633                 AC_TRY_COMPILE([
  1634                 #include <X11/Xlib.h>
  1635                 #include <X11/extensions/Xrandr.h>
  1636                 ],[
  1637                 XRRScreenResources *res = NULL;
  1638                 ],[
  1639                 have_xrandr_h_hdr=yes
  1640                 ])
  1641                 if test x$have_xrandr_h_hdr = xyes; then
  1642                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1643                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1644                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1645                         definitely_enable_video_x11_xrandr=yes
  1646                     else
  1647                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1648                         if test x$have_xrandr_lib = xyes ; then
  1649                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1650                             definitely_enable_video_x11_xrandr=yes
  1651                         fi
  1652                     fi
  1653                 fi
  1654             fi
  1655             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1656                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1657                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1658             fi
  1659             AC_ARG_ENABLE(video-x11-scrnsaver,
  1660 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1661                             , enable_video_x11_scrnsaver=yes)
  1662             if test x$enable_video_x11_scrnsaver = xyes; then
  1663                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1664                                 have_scrnsaver_h_hdr=yes,
  1665                                 have_scrnsaver_h_hdr=no,
  1666                                 [#include <X11/Xlib.h>
  1667                                 ])
  1668                 if test x$have_scrnsaver_h_hdr = xyes; then
  1669                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1670                         echo "-- dynamic libXss -> $xss_lib"
  1671                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1672                         definitely_enable_video_x11_scrnsaver=yes
  1673                     else
  1674                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1675                         if test x$have_xss_lib = xyes ; then
  1676                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1677                             definitely_enable_video_x11_scrnsaver=yes
  1678                         fi
  1679                     fi
  1680                 fi
  1681             fi
  1682             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1683                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1684                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1685             fi
  1686             AC_ARG_ENABLE(video-x11-xshape,
  1687 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1688                             , enable_video_x11_xshape=yes)
  1689             if test x$enable_video_x11_xshape = xyes; then
  1690                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1691                                 have_shape_h_hdr=yes,
  1692                                 have_shape_h_hdr=no,
  1693                                 [#include <X11/Xlib.h>
  1694                                 ])
  1695                 if test x$have_shape_h_hdr = xyes; then
  1696                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1697                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1698                 fi
  1699             fi
  1700             AC_ARG_ENABLE(video-x11-vm,
  1701 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1702                             , enable_video_x11_vm=yes)
  1703             if test x$enable_video_x11_vm = xyes; then
  1704                 definitely_enable_video_x11_vm=no
  1705                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1706                                 have_vm_h_hdr=yes,
  1707                                 have_vm_h_hdr=no,
  1708                                 [#include <X11/Xlib.h>
  1709                                 ])
  1710                 if test x$have_vm_h_hdr = xyes; then
  1711                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1712                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1713                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1714                         definitely_enable_video_x11_vm=yes
  1715                     else
  1716                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1717                         if test x$have_vm_lib = xyes ; then
  1718                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1719                             definitely_enable_video_x11_vm=yes
  1720                         fi
  1721                     fi
  1722                 fi
  1723             fi
  1724             if test x$definitely_enable_video_x11_vm = xyes; then
  1725                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1726                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1727             fi
  1728         fi
  1729     fi
  1730 }
  1731 
  1732 dnl Set up the Vivante video driver if enabled
  1733 CheckVivanteVideo()
  1734 {
  1735     AC_ARG_ENABLE(video-vivante,
  1736 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1737                   , enable_video_vivante=yes)
  1738     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1739         AC_MSG_CHECKING(for Vivante VDK API)
  1740         have_vivante_vdk=no
  1741         AC_TRY_COMPILE([
  1742           #define LINUX
  1743           #define EGL_API_FB
  1744           #include <gc_vdk.h>
  1745         ],[
  1746         ],[
  1747         have_vivante_vdk=yes
  1748         ])
  1749         AC_MSG_RESULT($have_vivante_vdk)
  1750 
  1751         AC_MSG_CHECKING(for Vivante FB API)
  1752         have_vivante_egl=no
  1753         AC_TRY_COMPILE([
  1754           #define LINUX
  1755           #define EGL_API_FB
  1756           #include <EGL/eglvivante.h>
  1757         ],[
  1758         ],[
  1759         have_vivante_egl=yes
  1760         ])
  1761         AC_MSG_RESULT($have_vivante_egl)
  1762 
  1763         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  1764             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  1765             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  1766             if test x$have_vivante_vdk = xyes; then
  1767                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  1768                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  1769             fi
  1770             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  1771             SUMMARY_video="${SUMMARY_video} vivante"
  1772             have_video=yes
  1773         fi
  1774     fi
  1775 }
  1776 
  1777 dnl Set up the Haiku video driver if enabled
  1778 CheckHaikuVideo()
  1779 {
  1780     if test x$enable_video = xyes; then
  1781         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1782         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1783         have_video=yes
  1784         SUMMARY_video="${SUMMARY_video} haiku"
  1785     fi
  1786 }
  1787 
  1788 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1789 CheckCOCOA()
  1790 {
  1791     AC_ARG_ENABLE(video-cocoa,
  1792 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1793                   , enable_video_cocoa=yes)
  1794     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1795         save_CFLAGS="$CFLAGS"
  1796         dnl work around that we don't have Objective-C support in autoconf
  1797         CFLAGS="$CFLAGS -x objective-c"
  1798         AC_MSG_CHECKING(for Cocoa framework)
  1799         have_cocoa=no
  1800         AC_TRY_COMPILE([
  1801           #import <Cocoa/Cocoa.h>
  1802         ],[
  1803         ],[
  1804         have_cocoa=yes
  1805         ])
  1806         AC_MSG_RESULT($have_cocoa)
  1807         CFLAGS="$save_CFLAGS"
  1808         if test x$have_cocoa = xyes; then
  1809             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1810             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1811             SUMMARY_video="${SUMMARY_video} cocoa"
  1812             have_video=yes
  1813         fi
  1814     fi
  1815 }
  1816 
  1817 dnl Find DirectFB
  1818 CheckDirectFB()
  1819 {
  1820     AC_ARG_ENABLE(video-directfb,
  1821 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1822                   , enable_video_directfb=no)
  1823     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1824         video_directfb=no
  1825 
  1826         DIRECTFB_REQUIRED_VERSION=1.0.0
  1827         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1828         if test x$DIRECTFBCONFIG = xno; then
  1829             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1830             if test x$PKG_CONFIG != xno; then
  1831                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1832                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1833                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1834                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1835                     video_directfb=yes
  1836                 fi
  1837             fi
  1838         else
  1839             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1840             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1841             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1842             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1843             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1844                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1845                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1846                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1847                 video_directfb=yes
  1848             fi
  1849         fi
  1850         if test x$video_directfb = xyes; then
  1851             # SuSE 11.1 installs directfb-config without directfb-devel
  1852             save_CPPFLAGS="$CPPFLAGS"
  1853             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1854             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1855             CPPFLAGS="$save_CPPFLAGS"
  1856             video_directfb=$have_directfb_hdr
  1857         fi
  1858         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1859         AC_MSG_RESULT($video_directfb)
  1860 
  1861         if test x$video_directfb = xyes; then
  1862             AC_ARG_ENABLE(directfb-shared,
  1863 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1864                               , enable_directfb_shared=yes)
  1865 
  1866             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1867             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1868             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1869             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1870 
  1871             AC_MSG_CHECKING(for directfb dynamic loading support)
  1872             directfb_shared=no
  1873             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1874             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1875 AC_MSG_WARN("directfb $directfb_lib")
  1876             if test x$have_loadso != xyes && \
  1877                test x$enable_directfb_shared = xyes; then
  1878                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1879             fi
  1880             if test x$have_loadso = xyes && \
  1881                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1882                 directfb_shared=yes
  1883                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1884                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1885                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1886             else
  1887                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1888                 SUMMARY_video="${SUMMARY_video} directfb"
  1889             fi
  1890             AC_MSG_RESULT($directfb_shared)
  1891             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  1892             have_video=yes
  1893         fi
  1894     fi
  1895 }
  1896 
  1897 dnl Find FusionSound
  1898 CheckFusionSound()
  1899 {
  1900     AC_ARG_ENABLE(fusionsound,
  1901 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1902                   , enable_fusionsound=no)
  1903     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1904         fusionsound=no
  1905 
  1906         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1907 
  1908         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1909         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1910         if test x$PKG_CONFIG != xno; then
  1911             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1912                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1913                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1914                 fusionsound=yes
  1915             fi
  1916         fi
  1917         AC_MSG_RESULT($fusionsound)
  1918 
  1919         if test x$fusionsound = xyes; then
  1920             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1921             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1922             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1923             
  1924             AC_ARG_ENABLE(fusionsound-shared,
  1925 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1926                           , enable_fusionsound_shared=yes)
  1927             fusionsound_shared=no
  1928             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1929             if test x$have_loadso != xyes && \
  1930                test x$enable_fusionsound_shared = xyes; then
  1931                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1932             fi
  1933             if test x$have_loadso = xyes && \
  1934                test x$enable_fusionsound_shared = xyes; then
  1935                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1936                 fusionsound_shared=yes
  1937                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1938             else
  1939                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1940                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1941             fi
  1942             AC_MSG_RESULT($fusionsound_shared)
  1943             
  1944             have_audio=yes
  1945         fi
  1946     fi
  1947 }
  1948 
  1949 dnl rcg04172001 Set up the Null video driver.
  1950 CheckDummyVideo()
  1951 {
  1952     AC_ARG_ENABLE(video-dummy,
  1953 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1954                   , enable_video_dummy=yes)
  1955     if test x$enable_video_dummy = xyes; then
  1956         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1957         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1958         have_video=yes
  1959         SUMMARY_video="${SUMMARY_video} dummy"
  1960     fi
  1961 }
  1962 
  1963 dnl Check to see if OpenGL support is desired
  1964 AC_ARG_ENABLE(video-opengl,
  1965 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1966               , enable_video_opengl=yes)
  1967 
  1968 dnl Find OpenGL
  1969 CheckOpenGLX11()
  1970 {
  1971     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1972         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1973         video_opengl=no
  1974         AC_TRY_COMPILE([
  1975          #include <GL/gl.h>
  1976          #include <GL/glx.h>
  1977         ],[
  1978         ],[
  1979         video_opengl=yes
  1980         ])
  1981         AC_MSG_RESULT($video_opengl)
  1982         if test x$video_opengl = xyes; then
  1983             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1984             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1985             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1986             SUMMARY_video="${SUMMARY_video} opengl"
  1987         fi
  1988     fi
  1989 }
  1990 
  1991 dnl Check to see if OpenGL ES support is desired
  1992 AC_ARG_ENABLE(video-opengles,
  1993 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1994               , enable_video_opengles=yes)
  1995 AC_ARG_ENABLE(video-opengles1,
  1996 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  1997               , enable_video_opengles1=yes)
  1998 AC_ARG_ENABLE(video-opengles2,
  1999 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2000               , enable_video_opengles2=yes)
  2001 
  2002 dnl Find OpenGL ES
  2003 CheckOpenGLESX11()
  2004 {
  2005     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2006         AC_MSG_CHECKING(for EGL support)
  2007         video_opengl_egl=no
  2008         AC_TRY_COMPILE([
  2009           #define LINUX
  2010           #define EGL_API_FB
  2011           #include <EGL/egl.h>
  2012           #include <EGL/eglext.h>
  2013         ],[
  2014         ],[
  2015         video_opengl_egl=yes
  2016         ])
  2017         AC_MSG_RESULT($video_opengl_egl)
  2018         if test x$video_opengl_egl = xyes; then
  2019             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2020         fi
  2021             
  2022         if test x$enable_video_opengles1 = xyes; then
  2023             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2024             video_opengles_v1=no
  2025             AC_TRY_COMPILE([
  2026              #include <GLES/gl.h>
  2027              #include <GLES/glext.h>
  2028             ],[
  2029             ],[
  2030             video_opengles_v1=yes
  2031             ])
  2032             AC_MSG_RESULT($video_opengles_v1)
  2033             if test x$video_opengles_v1 = xyes; then
  2034                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2035                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2036                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2037             fi
  2038         fi
  2039         
  2040         if test x$enable_video_opengles2 = xyes; then
  2041             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2042             video_opengles_v2=no
  2043             AC_TRY_COMPILE([
  2044              #include <GLES2/gl2.h>
  2045              #include <GLES2/gl2ext.h>
  2046             ],[
  2047             ],[
  2048             video_opengles_v2=yes
  2049             ])
  2050             AC_MSG_RESULT($video_opengles_v2)
  2051             if test x$video_opengles_v2 = xyes; then
  2052                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2053                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2054                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2055             fi
  2056         fi
  2057     fi
  2058 }
  2059 
  2060 dnl Check for Windows OpenGL
  2061 CheckWINDOWSGL()
  2062 {
  2063     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2064         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2065         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2066         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2067         SUMMARY_video="${SUMMARY_video} opengl"
  2068     fi
  2069 }
  2070 
  2071 dnl Check for Windows OpenGL
  2072 CheckWINDOWSGLES()
  2073 {
  2074     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2075 
  2076         AC_MSG_CHECKING(for EGL support)
  2077         video_opengl_egl=no
  2078         AC_TRY_COMPILE([
  2079          #include <EGL/egl.h>
  2080         ],[
  2081         ],[
  2082         video_opengl_egl=yes
  2083         ])
  2084         AC_MSG_RESULT($video_opengl_egl)
  2085         if test x$video_opengl_egl = xyes; then
  2086             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2087             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2088             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2089         fi
  2090        
  2091         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2092         video_opengles_v2=no
  2093         AC_TRY_COMPILE([
  2094          #include <GLES2/gl2.h>
  2095          #include <GLES2/gl2ext.h>
  2096         ],[
  2097         ],[
  2098         video_opengles_v2=yes
  2099         ])
  2100         AC_MSG_RESULT($video_opengles_v2)
  2101         if test x$video_opengles_v2 = xyes; then
  2102             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2103             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2104             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2105             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2106         fi
  2107     fi
  2108 }
  2109 
  2110 dnl Check for Haiku OpenGL
  2111 CheckHaikuGL()
  2112 {
  2113     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2114         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2115         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2116         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2117         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2118         SUMMARY_video="${SUMMARY_video} opengl"
  2119     fi
  2120 }
  2121 
  2122 dnl Check for MacOS OpenGL
  2123 CheckMacGL()
  2124 {
  2125     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2126         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2127         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2128         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2129         SUMMARY_video="${SUMMARY_video} opengl"
  2130     fi
  2131 }
  2132 
  2133 CheckEmscriptenGLES()
  2134 {
  2135     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2136         AC_MSG_CHECKING(for EGL support)
  2137         video_opengl_egl=no
  2138         AC_TRY_COMPILE([
  2139          #include <EGL/egl.h>
  2140         ],[
  2141         ],[
  2142         video_opengl_egl=yes
  2143         ])
  2144         AC_MSG_RESULT($video_opengl_egl)
  2145         if test x$video_opengl_egl = xyes; then
  2146             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2147         fi
  2148 
  2149         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2150         video_opengles_v2=no
  2151         AC_TRY_COMPILE([
  2152          #include <GLES2/gl2.h>
  2153          #include <GLES2/gl2ext.h>
  2154         ],[
  2155         ],[
  2156         video_opengles_v2=yes
  2157         ])
  2158         AC_MSG_RESULT($video_opengles_v2)
  2159         if test x$video_opengles_v2 = xyes; then
  2160             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2161             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2162             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2163         fi
  2164     fi
  2165 }
  2166 
  2167 dnl See if we can use the new unified event interface in Linux 2.4
  2168 CheckInputEvents()
  2169 {
  2170     dnl Check for Linux 2.4 unified input event interface support
  2171         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2172         use_input_events=no
  2173         AC_TRY_COMPILE([
  2174           #include <linux/input.h>
  2175         ],[
  2176           #ifndef EVIOCGNAME
  2177           #error EVIOCGNAME() ioctl not available
  2178           #endif
  2179         ],[
  2180         use_input_events=yes
  2181         ])
  2182         AC_MSG_RESULT($use_input_events)
  2183         if test x$use_input_events = xyes; then
  2184             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2185             SUMMARY_input="${SUMMARY_input} linuxev"
  2186         fi
  2187 }
  2188 
  2189 dnl See if we can use the kernel kd.h header
  2190 CheckInputKD()
  2191 {
  2192 
  2193     AC_MSG_CHECKING(for Linux kd.h)
  2194     use_input_kd=no
  2195     AC_TRY_COMPILE([
  2196       #include <linux/kd.h>
  2197       #include <linux/keyboard.h>
  2198     ],[
  2199         struct kbentry kbe;
  2200         kbe.kb_table = KG_CTRL;
  2201         ioctl(0, KDGKBENT, &kbe);
  2202     ],[
  2203     use_input_kd=yes
  2204     ])
  2205     AC_MSG_RESULT($use_input_kd)
  2206     if test x$use_input_kd = xyes; then
  2207         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2208         SUMMARY_input="${SUMMARY_input} linuxkd"
  2209     fi
  2210 }
  2211 
  2212 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2213 CheckLibUDev()
  2214 {
  2215     AC_ARG_ENABLE(libudev,
  2216 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2217                         , enable_libudev=yes)
  2218     if test x$enable_libudev = xyes; then
  2219         AC_CHECK_HEADER(libudev.h,
  2220                         have_libudev_h_hdr=yes,
  2221                         have_libudev_h_hdr=no)
  2222         if test x$have_libudev_h_hdr = xyes; then
  2223             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2224         fi
  2225     fi
  2226 }
  2227 
  2228 dnl See if the platform offers libdbus for various IPC techniques.
  2229 CheckDBus()
  2230 {
  2231     AC_ARG_ENABLE(dbus,
  2232 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2233                         , enable_dbus=yes)
  2234     if test x$enable_dbus = xyes; then
  2235         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2236         if test x$PKG_CONFIG != xno; then
  2237             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2238             save_CFLAGS="$CFLAGS"
  2239             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2240             AC_CHECK_HEADER(dbus/dbus.h,
  2241                             have_dbus_dbus_h_hdr=yes,
  2242                             have_dbus_dbus_h_hdr=no)
  2243             CFLAGS="$save_CFLAGS"
  2244             if test x$have_dbus_dbus_h_hdr = xyes; then
  2245                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2246                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2247                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2248             fi
  2249         fi
  2250     fi
  2251 }
  2252 
  2253 dnl See if the platform has libibus IME support.
  2254 CheckIBus()
  2255 {
  2256     AC_ARG_ENABLE(ibus,
  2257 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2258                   , enable_ibus=yes)
  2259     if test x$enable_ibus = xyes; then
  2260         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2261         if test x$PKG_CONFIG != xno; then
  2262             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2263             save_CFLAGS="$CFLAGS"
  2264             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2265             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2266                             have_ibus_ibus_h_hdr=yes,
  2267                             have_ibus_ibus_h_hdr=no)
  2268             AC_CHECK_HEADER(sys/inotify.h,
  2269                             have_inotify_inotify_h_hdr=yes,
  2270                             have_inotify_inotify_h_hdr=no)
  2271             CFLAGS="$save_CFLAGS"
  2272             if test x$have_ibus_ibus_h_hdr = xyes; then
  2273                 if test x$enable_dbus != xyes; then
  2274                     AC_MSG_WARN([DBus support is required for IBus.])
  2275                     have_ibus_ibus_h_hdr=no
  2276                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2277                     AC_MSG_WARN([INotify support is required for IBus.])
  2278                     have_ibus_ibus_h_hdr=no
  2279                 else
  2280                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2281                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2282                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2283                fi
  2284             fi
  2285         fi
  2286     fi
  2287 }
  2288 
  2289 dnl See if we can use the Touchscreen input library
  2290 CheckTslib()
  2291 {
  2292     AC_ARG_ENABLE(input-tslib,
  2293 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2294                   , enable_input_tslib=yes)
  2295     if test x$enable_input_tslib = xyes; then
  2296         AC_MSG_CHECKING(for Touchscreen library support)
  2297         enable_input_tslib=no
  2298         AC_TRY_COMPILE([
  2299           #include "tslib.h"
  2300         ],[
  2301         ],[
  2302         enable_input_tslib=yes
  2303         ])
  2304         AC_MSG_RESULT($enable_input_tslib)
  2305         if test x$enable_input_tslib = xyes; then
  2306             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2307             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2308             SUMMARY_input="${SUMMARY_input} ts"
  2309         fi
  2310     fi
  2311 }
  2312 
  2313 dnl See what type of thread model to use on Linux and Solaris
  2314 CheckPTHREAD()
  2315 {
  2316     dnl Check for pthread support
  2317     AC_ARG_ENABLE(pthreads,
  2318 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2319                   , enable_pthreads=yes)
  2320     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2321     AC_ARG_ENABLE(pthread-sem,
  2322 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2323                   , enable_pthread_sem=yes)
  2324     case "$host" in
  2325          *-*-androideabi*)
  2326             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2327             pthread_lib=""
  2328             ;;
  2329         *-*-linux*|*-*-uclinux*)
  2330             pthread_cflags="-D_REENTRANT"
  2331             pthread_lib="-lpthread"
  2332             ;;
  2333         *-*-bsdi*)
  2334             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2335             pthread_lib=""
  2336             ;;
  2337         *-*-darwin*)
  2338             pthread_cflags="-D_THREAD_SAFE"
  2339 # causes Carbon.p complaints?
  2340 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2341             ;;
  2342         *-*-freebsd*|*-*-dragonfly*)
  2343             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2344             pthread_lib="-pthread"
  2345             ;;
  2346         *-*-netbsd*)
  2347             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2348             pthread_lib="-lpthread"
  2349             ;;
  2350         *-*-openbsd*)
  2351             pthread_cflags="-D_REENTRANT"
  2352             pthread_lib="-pthread"
  2353             ;;
  2354         *-*-solaris2.9)
  2355             # From Solaris 9+, posix4's preferred name is rt.
  2356             pthread_cflags="-D_REENTRANT"
  2357             pthread_lib="-lpthread -lrt"
  2358             ;;
  2359         *-*-solaris2.10)
  2360             # Solaris 10+ merged pthread into libc.
  2361             pthread_cflags="-D_REENTRANT"
  2362             pthread_lib="-lrt"
  2363             ;;
  2364         *-*-solaris*)
  2365             # Solaris 11+ merged rt into libc.
  2366             pthread_cflags="-D_REENTRANT"
  2367             pthread_lib=""
  2368             ;;
  2369         *-*-sysv5*)
  2370             pthread_cflags="-D_REENTRANT -Kthread"
  2371             pthread_lib=""
  2372             ;;
  2373         *-*-aix*)
  2374             pthread_cflags="-D_REENTRANT -mthreads"
  2375             pthread_lib="-lpthread"
  2376             ;;
  2377         *-*-hpux11*)
  2378             pthread_cflags="-D_REENTRANT"
  2379             pthread_lib="-L/usr/lib -lpthread"
  2380             ;;
  2381         *-*-haiku*)
  2382             pthread_cflags="-D_REENTRANT"
  2383             pthread_lib=""
  2384             ;;
  2385         *)
  2386             pthread_cflags="-D_REENTRANT"
  2387             pthread_lib="-lpthread"
  2388             ;;
  2389     esac
  2390     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2391         # Save the original compiler flags and libraries
  2392         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2393         # Add the pthread compiler flags and libraries
  2394         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2395         # Check to see if we have pthread support on this system
  2396         AC_MSG_CHECKING(for pthreads)
  2397         use_pthreads=no
  2398         AC_TRY_LINK([
  2399          #include <pthread.h>
  2400         ],[
  2401          pthread_attr_t type;
  2402          pthread_attr_init(&type);
  2403         ],[
  2404         use_pthreads=yes
  2405         ])
  2406         AC_MSG_RESULT($use_pthreads)
  2407         # Restore the compiler flags and libraries
  2408         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2409 
  2410         # Do futher testing if we have pthread support...
  2411         if test x$use_pthreads = xyes; then
  2412             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2413             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2414             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2415             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2416             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2417 
  2418             # Save the original compiler flags and libraries
  2419             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2420             # Add the pthread compiler flags and libraries
  2421             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2422 
  2423             # Check to see if recursive mutexes are available
  2424             AC_MSG_CHECKING(for recursive mutexes)
  2425             has_recursive_mutexes=no
  2426             if test x$has_recursive_mutexes = xno; then
  2427                 AC_TRY_LINK([
  2428                   #define _GNU_SOURCE 1
  2429                   #include <pthread.h>
  2430                 ],[
  2431                   pthread_mutexattr_t attr;
  2432                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2433                 ],[
  2434                 has_recursive_mutexes=yes
  2435                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2436                 ])
  2437             fi
  2438             if test x$has_recursive_mutexes = xno; then
  2439                 AC_TRY_LINK([
  2440                   #define _GNU_SOURCE 1
  2441                   #include <pthread.h>
  2442                 ],[
  2443                   pthread_mutexattr_t attr;
  2444                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2445                 ],[
  2446                 has_recursive_mutexes=yes
  2447                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2448                 ])
  2449             fi
  2450             AC_MSG_RESULT($has_recursive_mutexes)
  2451 
  2452             # Check to see if pthread semaphore support is missing
  2453             if test x$enable_pthread_sem = xyes; then
  2454                 AC_MSG_CHECKING(for pthread semaphores)
  2455                 have_pthread_sem=no
  2456                 AC_TRY_COMPILE([
  2457                   #include <pthread.h>
  2458                   #include <semaphore.h>
  2459                 ],[
  2460                 ],[
  2461                 have_pthread_sem=yes
  2462                 ])
  2463                 AC_MSG_RESULT($have_pthread_sem)
  2464             fi
  2465             if test x$have_pthread_sem = xyes; then
  2466                 AC_MSG_CHECKING(for sem_timedwait)
  2467                 have_sem_timedwait=no
  2468                 AC_TRY_LINK([
  2469                   #include <pthread.h>
  2470                   #include <semaphore.h>
  2471                 ],[
  2472                   sem_timedwait(NULL, NULL);
  2473                 ],[
  2474                 have_sem_timedwait=yes
  2475                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2476                 ])
  2477                 AC_MSG_RESULT($have_sem_timedwait)
  2478             fi
  2479 
  2480             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2481             if test x$have_pthread_np_h = xyes; then
  2482                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2483             fi
  2484 
  2485             # Check to see if pthread naming is available
  2486             AC_MSG_CHECKING(for pthread_setname_np)
  2487             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2488               has_pthread_setname_np=yes
  2489               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2490             ],[
  2491               has_pthread_setname_np=no
  2492             ])
  2493             AC_MSG_RESULT($has_pthread_setname_np)
  2494 
  2495             AC_MSG_CHECKING(for pthread_set_name_np)
  2496             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2497               has_pthread_set_name_np=yes
  2498               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2499             ],[
  2500               has_pthread_set_name_np=no
  2501             ])
  2502             AC_MSG_RESULT($has_pthread_set_name_np)
  2503 
  2504             # Restore the compiler flags and libraries
  2505             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2506 
  2507             # Basic thread creation functions
  2508             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2509 
  2510             # Semaphores
  2511             # We can fake these with mutexes and condition variables if necessary
  2512             if test x$have_pthread_sem = xyes; then
  2513                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2514             else
  2515                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2516             fi
  2517 
  2518             # Mutexes
  2519             # We can fake these with semaphores if necessary
  2520             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2521 
  2522             # Condition variables
  2523             # We can fake these with semaphores and mutexes if necessary
  2524             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2525 
  2526             # Thread local storage
  2527             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2528 
  2529             have_threads=yes
  2530         fi
  2531     fi
  2532 }
  2533 
  2534 dnl Determine whether the compiler can produce Windows executables
  2535 CheckWINDOWS()
  2536 {
  2537     AC_MSG_CHECKING(Windows compiler)
  2538     have_win32_gcc=no
  2539     AC_TRY_COMPILE([
  2540      #include <windows.h>
  2541     ],[
  2542     ],[
  2543     have_win32_gcc=yes
  2544     ])
  2545     AC_MSG_RESULT($have_win32_gcc)
  2546     if test x$have_win32_gcc != xyes; then
  2547        AC_MSG_ERROR([
  2548 *** Your compiler ($CC) does not produce Windows executables!
  2549        ])
  2550     fi
  2551 
  2552     AC_MSG_CHECKING(Windows CE)
  2553     have_wince=no
  2554     AC_TRY_COMPILE([
  2555 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2556 #error This is not Windows CE
  2557 #endif
  2558     ],[
  2559     ],[
  2560     have_wince=yes
  2561        AC_MSG_ERROR([
  2562 *** Sorry, Windows CE is no longer supported.
  2563        ])
  2564     ])
  2565     AC_MSG_RESULT($have_wince)
  2566 
  2567     # This fixes Windows stack alignment with newer GCC
  2568     CheckStackBoundary
  2569 }
  2570 
  2571 dnl Find the DirectX includes and libraries
  2572 CheckDIRECTX()
  2573 {
  2574     AC_ARG_ENABLE(directx,
  2575 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2576                   , enable_directx=yes)
  2577     if test x$enable_directx = xyes; then
  2578         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2579         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2580         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2581         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2582         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2583         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2584         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2585         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2586 
  2587         if test x$have_ddraw = xyes; then
  2588             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  2589         fi
  2590         if test x$have_dinput = xyes; then
  2591             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  2592         fi
  2593         if test x$have_dsound = xyes; then
  2594             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  2595         fi
  2596         if test x$have_dxgi = xyes; then
  2597             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  2598         fi
  2599         if test x$have_xinput = xyes; then
  2600             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  2601         fi
  2602 
  2603         SUMMARY_video="${SUMMARY_video} directx"
  2604         SUMMARY_audio="${SUMMARY_audio} directx"
  2605 
  2606         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2607         # FIXME:  ...so force it off for now.
  2608         case "$host" in
  2609             *-*-cygwin*)
  2610             have_dinput=false
  2611             ;;
  2612         esac
  2613     fi
  2614 }
  2615 
  2616 dnl Check for the dlfcn.h interface for dynamically loading objects
  2617 CheckDLOPEN()
  2618 {
  2619     AC_ARG_ENABLE(sdl-dlopen,
  2620 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2621                   , enable_sdl_dlopen=yes)
  2622     if test x$enable_sdl_dlopen = xyes; then
  2623         AC_MSG_CHECKING(for dlopen)
  2624         have_dlopen=no
  2625         AC_TRY_COMPILE([
  2626          #include <dlfcn.h>
  2627         ],[
  2628          void *handle = dlopen("", RTLD_NOW);
  2629          const char *loaderror = (char *) dlerror();
  2630         ],[
  2631         have_dlopen=yes
  2632         ])
  2633         AC_MSG_RESULT($have_dlopen)
  2634 
  2635         if test x$have_dlopen = xyes; then
  2636             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2637                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2638                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2639             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2640             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2641             have_loadso=yes
  2642         fi
  2643     fi
  2644 }
  2645 
  2646 dnl Check for the usbhid(3) library on *BSD
  2647 CheckUSBHID()
  2648 {
  2649     case "$host" in
  2650         *-*-*bsd*)
  2651             if test x$enable_joystick = xyes; then
  2652                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2653                 if test x$have_libusbhid = xyes; then
  2654                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2655                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2656                     USB_LIBS="$USB_LIBS -lusbhid"
  2657                 else
  2658                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2659                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2660                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2661                 fi
  2662                     
  2663                 save_CFLAGS="$CFLAGS"
  2664                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2665 
  2666                 AC_MSG_CHECKING(for usbhid)
  2667                 have_usbhid=no
  2668                 AC_TRY_COMPILE([
  2669                   #include <sys/types.h>
  2670                   #if defined(HAVE_USB_H)
  2671                   #include <usb.h>
  2672                   #endif
  2673                   #ifdef __DragonFly__
  2674                   # include <bus/usb/usb.h>
  2675                   # include <bus/usb/usbhid.h>
  2676                   #else
  2677                   # include <dev/usb/usb.h>
  2678                   # include <dev/usb/usbhid.h>
  2679                   #endif
  2680                   #if defined(HAVE_USBHID_H)
  2681                   #include <usbhid.h>
  2682                   #elif defined(HAVE_LIBUSB_H)
  2683                   #include <libusb.h>
  2684                   #elif defined(HAVE_LIBUSBHID_H)
  2685                   #include <libusbhid.h>
  2686                   #endif
  2687                 ],[
  2688                   struct report_desc *repdesc;
  2689                   struct usb_ctl_report *repbuf;
  2690                   hid_kind_t hidkind;
  2691                 ],[
  2692                 have_usbhid=yes
  2693                 ])
  2694                 AC_MSG_RESULT($have_usbhid)
  2695 
  2696                 if test x$have_usbhid = xyes; then
  2697                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2698                     have_usbhid_ucr_data=no
  2699                     AC_TRY_COMPILE([
  2700                       #include <sys/types.h>
  2701                       #if defined(HAVE_USB_H)
  2702                       #include <usb.h>
  2703                       #endif
  2704                       #ifdef __DragonFly__
  2705                       # include <bus/usb/usb.h>
  2706                       # include <bus/usb/usbhid.h>
  2707                       #else
  2708                       # include <dev/usb/usb.h>
  2709                       # include <dev/usb/usbhid.h>
  2710                       #endif
  2711                       #if defined(HAVE_USBHID_H)
  2712                       #include <usbhid.h>
  2713                       #elif defined(HAVE_LIBUSB_H)
  2714                       #include <libusb.h>
  2715                       #elif defined(HAVE_LIBUSBHID_H)
  2716                       #include <libusbhid.h>
  2717                       #endif
  2718                     ],[
  2719                       struct usb_ctl_report buf;
  2720                       if (buf.ucr_data) { }
  2721                     ],[
  2722                     have_usbhid_ucr_data=yes
  2723                     ])
  2724                     if test x$have_usbhid_ucr_data = xyes; then
  2725                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2726                     fi
  2727                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2728                     
  2729                     AC_MSG_CHECKING(for new usbhid API)
  2730                     have_usbhid_new=no
  2731                     AC_TRY_COMPILE([
  2732                       #include <sys/types.h>
  2733                       #if defined(HAVE_USB_H)
  2734                       #include <usb.h>
  2735                       #endif
  2736                       #ifdef __DragonFly__
  2737                       #include <bus/usb/usb.h>
  2738                       #include <bus/usb/usbhid.h>
  2739                       #else
  2740                       #include <dev/usb/usb.h>
  2741                       #include <dev/usb/usbhid.h>
  2742                       #endif
  2743                       #if defined(HAVE_USBHID_H)
  2744                       #include <usbhid.h>
  2745                       #elif defined(HAVE_LIBUSB_H)
  2746                       #include <libusb.h>
  2747                       #elif defined(HAVE_LIBUSBHID_H)
  2748                       #include <libusbhid.h>
  2749                       #endif
  2750                     ],[
  2751                       report_desc_t d;
  2752                       hid_start_parse(d, 1, 1);
  2753                     ],[
  2754                     have_usbhid_new=yes
  2755                     ])
  2756                     if test x$have_usbhid_new = xyes; then
  2757                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2758                     fi
  2759                     AC_MSG_RESULT($have_usbhid_new)
  2760 
  2761                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2762                     have_machine_joystick=no
  2763                     AC_TRY_COMPILE([
  2764                       #include <machine/joystick.h>
  2765                     ],[
  2766                       struct joystick t;
  2767                     ],[
  2768                     have_machine_joystick=yes
  2769                     ])
  2770                     if test x$have_machine_joystick = xyes; then
  2771                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2772                     fi
  2773                     AC_MSG_RESULT($have_machine_joystick)
  2774 
  2775                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2776                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2777                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2778                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2779                     have_joystick=yes
  2780                 fi
  2781                 CFLAGS="$save_CFLAGS"
  2782             fi
  2783         ;;
  2784     esac
  2785 }
  2786 
  2787 dnl Check for clock_gettime()
  2788 CheckClockGettime()
  2789 {
  2790     AC_ARG_ENABLE(clock_gettime,
  2791 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2792                   , enable_clock_gettime=yes)
  2793     if test x$enable_clock_gettime = xyes; then
  2794         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2795         if test x$have_clock_gettime = xyes; then
  2796             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2797             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2798         else
  2799             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2800             if test x$have_clock_gettime = xyes; then
  2801                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2802                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2803             fi
  2804         fi
  2805     fi
  2806 }
  2807 
  2808 dnl Check for a valid linux/version.h
  2809 CheckLinuxVersion()
  2810 {
  2811     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2812     if test x$have_linux_version_h = xyes; then
  2813         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2814     fi
  2815 }
  2816 
  2817 dnl Check if we want to use RPATH
  2818 CheckRPATH()
  2819 {
  2820     AC_ARG_ENABLE(rpath,
  2821 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2822                   , enable_rpath=yes)
  2823 }
  2824 
  2825 dnl Set up the configuration based on the host platform!
  2826 case "$host" in
  2827     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2828         case "$host" in
  2829             *-raspberry-linux*)
  2830                 # Raspberry Pi
  2831                 ARCH=linux
  2832                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2833                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2834                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2835                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2836                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2837 
  2838                 if test x$enable_video = xyes; then
  2839                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2840                     # FIXME: confdefs? Not AC_DEFINE?
  2841                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2842                     SUMMARY_video="${SUMMARY_video} rpi"
  2843                 fi
  2844                 ;;
  2845             *-*-androideabi*)
  2846                 # Android
  2847                 ARCH=android
  2848                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  2849                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  2850                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  2851                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  2852                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  2853 
  2854                 if test x$enable_video = xyes; then
  2855                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  2856                     # FIXME: confdefs? Not AC_DEFINE?
  2857                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  2858                     SUMMARY_video="${SUMMARY_video} android"
  2859                 fi
  2860                 ;;
  2861             *-*-linux*)         ARCH=linux ;;
  2862             *-*-uclinux*)       ARCH=linux ;;
  2863             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2864             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2865             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2866             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2867             *-*-bsdi*)          ARCH=bsdi ;;
  2868             *-*-freebsd*)       ARCH=freebsd ;;
  2869             *-*-dragonfly*)     ARCH=freebsd ;;
  2870             *-*-netbsd*)        ARCH=netbsd ;;
  2871             *-*-openbsd*)       ARCH=openbsd ;;
  2872             *-*-sysv5*)         ARCH=sysv5 ;;
  2873             *-*-solaris*)       ARCH=solaris ;;
  2874             *-*-hpux*)          ARCH=hpux ;;
  2875             *-*-aix*)           ARCH=aix ;;
  2876             *-*-minix*)         ARCH=minix ;;
  2877         esac
  2878         CheckVisibilityHidden
  2879         CheckDummyVideo
  2880         CheckDiskAudio
  2881         CheckDummyAudio
  2882         CheckDLOPEN
  2883         CheckOSS
  2884         CheckALSA
  2885         CheckPulseAudio
  2886         CheckARTSC
  2887         CheckESD
  2888         CheckNAS
  2889         CheckSNDIO
  2890         CheckX11
  2891         CheckDirectFB
  2892         CheckFusionSound
  2893         CheckOpenGLX11
  2894         CheckOpenGLESX11
  2895         CheckMir
  2896         CheckWayland
  2897         CheckLibUDev
  2898         CheckDBus
  2899         CheckIBus
  2900         case $ARCH in
  2901           linux)
  2902               CheckInputEvents
  2903               CheckInputKD
  2904           ;;
  2905         esac
  2906         CheckTslib
  2907         CheckUSBHID
  2908         CheckPTHREAD
  2909         CheckClockGettime
  2910         CheckLinuxVersion
  2911         CheckRPATH
  2912         CheckVivanteVideo
  2913         # Set up files for the audio library
  2914         if test x$enable_audio = xyes; then
  2915           case $ARCH in
  2916             sysv5|solaris|hpux)
  2917                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2918                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2919                 have_audio=yes
  2920             ;;
  2921             netbsd)  # Don't use this on OpenBSD, it's busted.
  2922                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2923                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2924                 have_audio=yes
  2925             ;;
  2926             aix)
  2927                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2928                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2929                 have_audio=yes
  2930             ;;
  2931             android)
  2932                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  2933                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  2934                 SUMMARY_audio="${SUMMARY_audio} android"
  2935                 have_audio=yes
  2936             ;;
  2937           esac
  2938         fi
  2939         # Set up files for the joystick library
  2940         if test x$enable_joystick = xyes; then
  2941           case $ARCH in
  2942             linux)
  2943                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2944                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2945                 have_joystick=yes
  2946             ;;
  2947             android)
  2948                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  2949                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  2950                 have_joystick=yes
  2951             ;;
  2952           esac
  2953         fi
  2954         # Set up files for the haptic library
  2955         if test x$enable_haptic = xyes; then
  2956            if test x$use_input_events = xyes; then
  2957              case $ARCH in
  2958                linux)
  2959                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2960                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2961                    have_haptic=yes
  2962                ;;
  2963              esac
  2964            fi
  2965         fi
  2966         # Set up files for the power library
  2967         if test x$enable_power = xyes; then
  2968              case $ARCH in
  2969                linux)
  2970                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2971                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2972                    have_power=yes
  2973                ;;
  2974                android)
  2975                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  2976                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  2977                    have_power=yes
  2978                ;;
  2979              esac
  2980         fi
  2981         # Set up files for the filesystem library
  2982         if test x$enable_filesystem = xyes; then
  2983              case $ARCH in
  2984                android)
  2985                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  2986                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  2987                    have_filesystem=yes
  2988                ;;
  2989                *)
  2990                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2991                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2992                    have_filesystem=yes
  2993                ;;
  2994              esac
  2995         fi
  2996         # Set up files for the timer library
  2997         if test x$enable_timers = xyes; then
  2998             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2999             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3000             have_timers=yes
  3001         fi
  3002         # Set up files for udev hotplugging support
  3003         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3004             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3005         fi
  3006         # Set up files for evdev input
  3007         if test x$use_input_events = xyes; then
  3008             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  3009         fi       
  3010         ;;
  3011     *-*-cygwin* | *-*-mingw32*)
  3012         ARCH=win32
  3013         if test "$build" != "$host"; then # cross-compiling
  3014             # Default cross-compile location
  3015             ac_default_prefix=/usr/local/cross-tools/$host
  3016         else
  3017             # Look for the location of the tools and install there
  3018             if test "$BUILD_PREFIX" != ""; then
  3019                 ac_default_prefix=$BUILD_PREFIX
  3020             fi
  3021         fi
  3022         CheckDummyVideo
  3023         CheckDiskAudio
  3024         CheckDummyAudio
  3025         CheckWINDOWS
  3026         CheckWINDOWSGL
  3027         CheckWINDOWSGLES
  3028         CheckDIRECTX
  3029 
  3030         # Set up the core platform files
  3031         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3032 
  3033         # Set up files for the video library
  3034         if test x$enable_video = xyes; then
  3035             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3036             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3037             have_video=yes
  3038             AC_ARG_ENABLE(render-d3d,
  3039 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3040                                 , enable_render_d3d=yes)
  3041             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3042                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3043             fi
  3044             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3045                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3046             fi
  3047         fi
  3048         # Set up files for the audio library
  3049         if test x$enable_audio = xyes; then
  3050             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3051             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3052             if test x$have_dsound = xyes; then
  3053                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3054                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3055             fi
  3056             if test x$have_xaudio2 = xyes; then
  3057                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  3058                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  3059             fi
  3060             have_audio=yes
  3061         fi
  3062         # Set up files for the joystick library
  3063         if test x$enable_joystick = xyes; then
  3064             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3065                 if test x$have_xinput = xyes; then
  3066                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3067                 fi
  3068                 if test x$have_dinput = xyes; then
  3069                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3070                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3071                 fi
  3072             else
  3073                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3074             fi
  3075             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3076             have_joystick=yes
  3077         fi
  3078         if test x$enable_haptic = xyes; then
  3079             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3080                 if test x$have_xinput = xyes; then
  3081                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3082                 fi
  3083                 if test x$have_dinput = xyes; then
  3084                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3085                 fi
  3086                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3087                 have_haptic=yes
  3088             fi
  3089         fi
  3090         if test x$enable_power = xyes; then
  3091             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3092             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3093             have_power=yes
  3094         fi
  3095         if test x$enable_filesystem = xyes; then
  3096             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3097             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3098             have_filesystem=yes
  3099         fi
  3100         # Set up files for the thread library
  3101         if test x$enable_threads = xyes; then
  3102             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3103             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3104             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3105             have_threads=yes
  3106         fi
  3107         # Set up files for the timer library
  3108         if test x$enable_timers = xyes; then
  3109             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3110             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3111             have_timers=yes
  3112         fi
  3113         # Set up files for the shared object loading library
  3114         if test x$enable_loadso = xyes; then
  3115             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3116             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3117             have_loadso=yes
  3118         fi
  3119         # Set up the system libraries we need
  3120         if test -f /lib/w32api/libuuid.a; then
  3121             LIBUUID=/lib/w32api/libuuid.a
  3122         else
  3123             LIBUUID=-luuid
  3124         fi
  3125         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -XCClinker -static-libgcc"
  3126         # The Windows platform requires special setup
  3127         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3128         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3129         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3130         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3131 
  3132         # Check to see if this is a mingw or cygwin build
  3133         have_mingw32=
  3134         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3135         if test x$have_mingw32 = xyes; then
  3136             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3137         else
  3138             SDL_LIBS="-lcygwin $SDL_LIBS"
  3139         fi
  3140         ;;
  3141 
  3142     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3143     *-*-beos*)
  3144         AC_MSG_ERROR([
  3145 *** BeOS support has been removed as of SDL 2.0.2.
  3146         ])
  3147         ;;
  3148 
  3149     *-*-haiku*)
  3150         ARCH=haiku
  3151         ac_default_prefix=/boot/system
  3152         CheckDummyVideo
  3153         CheckDiskAudio
  3154         CheckDummyAudio
  3155         CheckHaikuVideo
  3156         CheckHaikuGL
  3157         CheckPTHREAD
  3158 
  3159         # Set up files for the audio library
  3160         if test x$enable_audio = xyes; then
  3161             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3162             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3163             have_audio=yes
  3164         fi
  3165         # Set up files for the joystick library
  3166         if test x$enable_joystick = xyes; then
  3167             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3168             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3169             have_joystick=yes
  3170         fi
  3171         # Set up files for the timer library
  3172         if test x$enable_timers = xyes; then
  3173             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3174             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3175             have_timers=yes
  3176         fi
  3177         # Set up files for the shared object loading library
  3178         if test x$enable_loadso = xyes; then
  3179             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  3180             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  3181             have_loadso=yes
  3182         fi
  3183         # Set up files for the system power library
  3184         if test x$enable_power = xyes; then
  3185             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3186             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3187             have_power=yes
  3188         fi
  3189         # Set up files for the system filesystem library
  3190         if test x$enable_filesystem = xyes; then
  3191             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3192             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3193             have_filesystem=yes
  3194         fi
  3195         # The Haiku platform requires special setup.
  3196         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3197         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3198         ;;
  3199     arm*-apple-darwin*)
  3200         # iOS - We are not writing anything to confdefs.h because you have to replace
  3201         # SDL_config.h for SDL_config_iphoneos.h anyway
  3202         ARCH=ios
  3203 
  3204         CheckVisibilityHidden
  3205         CheckDummyVideo
  3206         CheckDiskAudio
  3207         CheckDummyAudio
  3208         CheckDLOPEN
  3209         CheckCOCOA
  3210         CheckPTHREAD
  3211 
  3212 
  3213         # Set up files for the audio library
  3214         if test x$enable_audio = xyes; then
  3215             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3216             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3217             have_audio=yes
  3218         fi
  3219         # Set up files for the joystick library
  3220         if test x$enable_joystick = xyes; then
  3221             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3222             have_joystick=yes
  3223         fi
  3224         # Set up files for the haptic library
  3225         #if test x$enable_haptic = xyes; then
  3226         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3227         #    have_haptic=yes
  3228         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3229         #fi
  3230         # Set up files for the power library
  3231         if test x$enable_power = xyes; then
  3232             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3233             have_power=yes
  3234         fi
  3235         # Set up files for the filesystem library
  3236         if test x$enable_filesystem = xyes; then
  3237             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3238             have_filesystem=yes
  3239         fi
  3240         # Set up files for the timer library
  3241         if test x$enable_timers = xyes; then
  3242             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3243             have_timers=yes
  3244         fi
  3245         # Set up additional files for the file library
  3246         if test x$enable_file = xyes; then
  3247             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3248         fi
  3249         # The iOS platform requires special setup.
  3250         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3251         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3252         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3253         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3254         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3255         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3256         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3257         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3258         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3259         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3260         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3261         ;;
  3262     *-*-darwin* )
  3263         # This could be either full "Mac OS X", or plain "Darwin" which is
  3264         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3265         # Next line is broken, and a few files below require Mac OS X (full)
  3266         ARCH=macosx
  3267 
  3268         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3269         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3270         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3271 
  3272         CheckVisibilityHidden
  3273         CheckDummyVideo
  3274         CheckDiskAudio
  3275         CheckDummyAudio
  3276         CheckDLOPEN
  3277         CheckCOCOA
  3278         CheckX11
  3279         CheckMacGL
  3280         CheckOpenGLX11
  3281         CheckPTHREAD
  3282 
  3283         # Set up files for the audio library
  3284         if test x$enable_audio = xyes; then
  3285             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3286             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3287             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3288             have_audio=yes
  3289         fi
  3290         # Set up files for the joystick library
  3291         if test x$enable_joystick = xyes; then
  3292             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3293             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3294             have_joystick=yes
  3295         fi
  3296         # Set up files for the haptic library
  3297         if test x$enable_haptic = xyes; then
  3298             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3299             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3300             have_haptic=yes
  3301             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3302         fi
  3303         # Set up files for the power library
  3304         if test x$enable_power = xyes; then
  3305             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3306             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3307             have_power=yes
  3308         fi
  3309         # Set up files for the filesystem library
  3310         if test x$enable_filesystem = xyes; then
  3311             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3312             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3313             have_filesystem=yes
  3314         fi
  3315         # Set up files for the timer library
  3316         if test x$enable_timers = xyes; then
  3317             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3318             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3319             have_timers=yes
  3320         fi
  3321         # Set up additional files for the file library
  3322         if test x$enable_file = xyes; then
  3323             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3324         fi
  3325         # The Mac OS X platform requires special setup.
  3326         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3327         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3328         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3329         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3330         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3331         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3332         # If audio is used, add the AudioUnit framework
  3333         if test x$enable_audio = xyes; then
  3334             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3335         fi
  3336         ;;
  3337     *-nacl|*-pnacl)
  3338         ARCH=nacl
  3339         CheckNativeClient
  3340         CheckDummyAudio
  3341         CheckDummyVideo
  3342         CheckInputEvents
  3343         CheckPTHREAD
  3344         
  3345         # Set up files for the timer library
  3346         if test x$enable_timers = xyes; then
  3347             AC_DEFINE(SDL_TIMER_UNIX)
  3348             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3349             have_timers=yes
  3350         fi
  3351         
  3352         if test x$enable_filesystem = xyes; then
  3353             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3354             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3355             have_filesystem=yes
  3356         fi
  3357         ;;
  3358     *-*-emscripten* )
  3359         if test x$enable_video = xyes; then
  3360             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3361             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3362             have_video=yes
  3363             SUMMARY_video="${SUMMARY_video} emscripten"
  3364         fi
  3365 
  3366         if test x$enable_audio = xyes; then
  3367             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3368             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3369             have_audio=yes
  3370             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3371         fi
  3372 
  3373         CheckVisibilityHidden
  3374         CheckDummyVideo
  3375         CheckDiskAudio
  3376         CheckDummyAudio
  3377         CheckDLOPEN
  3378         CheckClockGettime
  3379         CheckEmscriptenGLES
  3380 
  3381          # Set up files for the power library
  3382         if test x$enable_power = xyes; then
  3383             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3384             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3385             have_power=yes
  3386         fi
  3387         
  3388         # Set up files for the power library
  3389         if test x$enable_joystick = xyes; then
  3390             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3391             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3392             have_joystick=yes
  3393         fi
  3394 
  3395         # Set up files for the filesystem library
  3396         if test x$enable_filesystem = xyes; then
  3397             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3398             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3399             have_filesystem=yes
  3400         fi
  3401         # Set up files for the timer library
  3402         if test x$enable_timers = xyes; then
  3403             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3404             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3405             have_timers=yes
  3406         fi
  3407         ;;
  3408     *)
  3409         AC_MSG_ERROR([
  3410 *** Unsupported host:  Please add to configure.in
  3411         ])
  3412         ;;
  3413 esac
  3414 
  3415 dnl Do this on all platforms, after everything else.
  3416 CheckWarnAll
  3417 CheckWarnShadow
  3418 
  3419 # Verify that we have all the platform specific files we need
  3420 
  3421 if test x$have_joystick != xyes; then
  3422     if test x$enable_joystick = xyes; then
  3423         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3424     fi
  3425     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3426 fi
  3427 if test x$have_haptic != xyes; then
  3428     if test x$enable_haptic = xyes; then
  3429         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3430     fi
  3431     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3432 fi
  3433 if test x$have_threads != xyes; then
  3434     if test x$enable_threads = xyes; then
  3435         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3436     fi
  3437     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3438 fi
  3439 if test x$have_timers != xyes; then
  3440     if test x$enable_timers = xyes; then
  3441         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3442     fi
  3443     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3444 fi
  3445 if test x$have_filesystem != xyes; then
  3446     if test x$enable_filesystem = xyes; then
  3447         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3448     fi
  3449     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3450 fi
  3451 if test x$have_loadso != xyes; then
  3452     if test x$enable_loadso = xyes; then
  3453         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3454     fi
  3455     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3456 fi
  3457 if test x$SDLMAIN_SOURCES = x; then
  3458     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3459 fi
  3460 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3461 
  3462 OBJECTS=`echo $SOURCES`
  3463 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3464 for EXT in asm cc m c S; do
  3465     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3466     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3467 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3468 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3469 done
  3470 
  3471 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3472 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3473 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3474 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3475 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3476 	\\$(WINDRES) \\$< \\$@,g"`
  3477 
  3478 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3479 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3480 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3481 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3482 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3483 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3484 
  3485 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3486 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3487 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3488 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3489 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3490 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3491 
  3492 # Set runtime shared library paths as needed
  3493 
  3494 if test "x$enable_rpath" = "xyes"; then
  3495   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3496     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3497   fi
  3498   if test $ARCH = solaris; then
  3499     SDL_RLD_FLAGS="-R\${libdir}"
  3500   fi
  3501 else
  3502   SDL_RLD_FLAGS=""
  3503 fi
  3504 
  3505 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3506 
  3507 dnl Expand the cflags and libraries needed by apps using SDL
  3508 AC_SUBST(SDL_CFLAGS)
  3509 AC_SUBST(SDL_LIBS)
  3510 AC_SUBST(SDL_STATIC_LIBS)
  3511 AC_SUBST(SDL_RLD_FLAGS)
  3512 if test x$enable_shared = xyes; then
  3513     ENABLE_SHARED_TRUE=
  3514     ENABLE_SHARED_FALSE="#"
  3515 else
  3516     ENABLE_SHARED_TRUE="#"
  3517     ENABLE_SHARED_FALSE=
  3518 fi
  3519 if test x$enable_static = xyes; then
  3520     ENABLE_STATIC_TRUE=
  3521     ENABLE_STATIC_FALSE="#"
  3522 else
  3523     ENABLE_STATIC_TRUE="#"
  3524     ENABLE_STATIC_FALSE=
  3525 fi
  3526 AC_SUBST(ENABLE_SHARED_TRUE)
  3527 AC_SUBST(ENABLE_SHARED_FALSE)
  3528 AC_SUBST(ENABLE_STATIC_TRUE)
  3529 AC_SUBST(ENABLE_STATIC_FALSE)
  3530 
  3531 dnl Expand the sources and objects needed to build the library
  3532 AC_SUBST(ac_aux_dir)
  3533 AC_SUBST(INCLUDE)
  3534 AC_SUBST(OBJECTS)
  3535 AC_SUBST(VERSION_OBJECTS)
  3536 AC_SUBST(SDLMAIN_OBJECTS)
  3537 AC_SUBST(SDLTEST_OBJECTS)
  3538 AC_SUBST(BUILD_CFLAGS)
  3539 AC_SUBST(EXTRA_CFLAGS)
  3540 AC_SUBST(BUILD_LDFLAGS)
  3541 AC_SUBST(EXTRA_LDFLAGS)
  3542 AC_SUBST(WINDRES)
  3543 
  3544 cat >Makefile.rules <<__EOF__
  3545 
  3546 # Build rules for objects
  3547 -include \$(OBJECTS:.lo=.d)
  3548 
  3549 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3550 $srcdir/src/SDL.c: update-revision
  3551 $DEPENDS
  3552 $VERSION_DEPENDS
  3553 $SDLMAIN_DEPENDS
  3554 $SDLTEST_DEPENDS
  3555 __EOF__
  3556 
  3557 AC_CONFIG_FILES([
  3558     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3559 ])
  3560 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3561 
  3562 SUMMARY="SDL2 Configure Summary:\n"
  3563 if test x$enable_shared = xyes; then
  3564     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3565 fi
  3566 if test x$enable_static = xyes; then
  3567     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3568 fi
  3569 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3570 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3571 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3572 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3573 if test x$have_x = xyes; then
  3574     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3575 fi
  3576 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3577 if test x$enable_libudev = xyes; then
  3578     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3579 else
  3580     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3581 fi
  3582 if test x$have_dbus_dbus_h_hdr = xyes; then
  3583     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3584 else
  3585     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3586 fi
  3587 if test x$have_ibus_ibus_h_hdr = xyes; then
  3588     SUMMARY="${SUMMARY}Using ibus      : YES\n"
  3589 else
  3590     SUMMARY="${SUMMARY}Using ibus      : NO\n"
  3591 fi
  3592 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3593 
  3594 AC_OUTPUT