configure.in
author Sam Lantinga <slouken@libsdl.org>
Wed, 30 Nov 2016 22:06:05 -0800
changeset 10668 1889c850fafc
parent 10660 1ae4e8001b73
child 10777 2883d23b5a28
permissions -rw-r--r--
Fixed bug 3340 - SDL_BlitScaled causes access violation in some cases.

Simon Hug

The SDL_BlitScaled function runs into an access violation for specific blit coordinates and surface sizes. The attached testcase blits a 800x600 surface to a 1280x720 surface at the coordinates -640,-345 scaled to 1280x720. The blit function that moves the data then runs over and reads after the pixel data from the src surface causing an access violation.

I can't say where exactly it goes wrong, but I think it could have something to do with the rounding in SDL_UpperBlitScaled. final_src.y is 288 and final_src.h is 313. Together that's 601, which I believe is one too much, but I just don't know the code enough to make sure that's the problem.

Sylvain

I think this patch fix the issue, but maybe it's worth re-writing "SDL_UpperBlitScaled" using SDL_FRect.
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=5
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=5
    26 SDL_VERSION=$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$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$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$enable_alsa = xyes; then
   773         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$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="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1128 dnl  This lets us catch things that would fail on a C89 compiler when using
  1129 dnl  a modern GCC.
  1130 CheckDeclarationAfterStatement()
  1131 {
  1132     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1133     have_gcc_declaration_after_statement=no
  1134 
  1135     save_CFLAGS="$CFLAGS"
  1136     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1137     AC_TRY_COMPILE([
  1138     int x = 0;
  1139     ],[
  1140     ],[
  1141     have_gcc_declaration_after_statement=yes
  1142     ])
  1143     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1144     CFLAGS="$save_CFLAGS"
  1145 
  1146     if test x$have_gcc_declaration_after_statement = xyes; then
  1147         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1148     fi
  1149 }
  1150 
  1151 dnl See if GCC's -Wall is supported.
  1152 CheckWarnAll()
  1153 {
  1154     AC_MSG_CHECKING(for GCC -Wall option)
  1155     have_gcc_Wall=no
  1156 
  1157     save_CFLAGS="$CFLAGS"
  1158     CFLAGS="$save_CFLAGS -Wall"
  1159     AC_TRY_COMPILE([
  1160     int x = 0;
  1161     ],[
  1162     ],[
  1163     have_gcc_Wall=yes
  1164     ])
  1165     AC_MSG_RESULT($have_gcc_Wall)
  1166     CFLAGS="$save_CFLAGS"
  1167 
  1168     if test x$have_gcc_Wall = xyes; then
  1169         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1170 
  1171         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1172         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1173         need_gcc_Wno_multichar=no
  1174         case "$host" in
  1175             *-*-haiku*)
  1176                 need_gcc_Wno_multichar=yes
  1177                 ;;
  1178         esac
  1179         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1180         if test x$need_gcc_Wno_multichar = xyes; then
  1181             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1182         fi
  1183     fi
  1184 }
  1185 
  1186 dnl Check for Wayland
  1187 CheckWayland()
  1188 {
  1189     AC_ARG_ENABLE(video-wayland,
  1190 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1191                   ,enable_video_wayland=yes)
  1192 
  1193     AC_ARG_ENABLE(video-wayland-qt-touch,
  1194 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1195                   ,enable_video_wayland_qt_touch=yes)
  1196 
  1197     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1198         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1199         AC_MSG_CHECKING(for Wayland support)
  1200         video_wayland=no
  1201         if  test x$PKG_CONFIG != xno && \
  1202             test x$video_opengl_egl = xyes && \
  1203             test x$video_opengles_v2 = xyes; then
  1204             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1205                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1206                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1207                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1208                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1209                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1210                 video_wayland=yes
  1211             fi
  1212         fi
  1213         AC_MSG_RESULT($video_wayland)
  1214 
  1215         if test x$video_wayland = xyes; then
  1216             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1217             if test x$enable_video_wayland_qt_touch = xyes; then
  1218                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1219             fi
  1220 
  1221             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1"
  1222 
  1223             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1224             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1225             AC_ARG_ENABLE(wayland-shared,
  1226 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1227                           , enable_wayland_shared=maybe)
  1228 
  1229             dnl FIXME: Do BSD and OS X need special cases?
  1230             case "$host" in
  1231                 *)
  1232                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1233                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1234                     if test x$wayland_egl_lib = x; then
  1235                         dnl This works in Ubuntu 13.10, maybe others
  1236                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1237                     fi
  1238                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1239                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1240                     ;;
  1241             esac
  1242 
  1243             if test x$enable_wayland_shared = xmaybe; then
  1244                 enable_wayland_shared=yes
  1245             fi
  1246             if test x$have_loadso != xyes && \
  1247                test x$enable_wayland_shared = xyes; then
  1248                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1249                 enable_wayland_shared=no
  1250             fi
  1251             if test x$have_loadso = xyes && \
  1252                test x$enable_wayland_shared = xyes && \
  1253                test x$wayland_client_lib != x && \
  1254                test x$wayland_egl_lib != x && \
  1255                test x$wayland_cursor_lib != x && \
  1256                test x$xkbcommon_lib != x; then
  1257                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1258                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1259                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1260                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1261                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1262                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1263                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1264                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1265                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1266             else
  1267                 enable_wayland_shared=no
  1268                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1269                 SUMMARY_video="${SUMMARY_video} wayland"
  1270             fi
  1271             have_video=yes
  1272         fi
  1273     fi
  1274 }
  1275 
  1276 dnl Check for Mir
  1277 CheckMir()
  1278 {
  1279     AC_ARG_ENABLE(video-mir,
  1280 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1281                   ,enable_video_mir=yes)
  1282 
  1283     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1284         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1285         AC_MSG_CHECKING(for Mir support)
  1286         video_mir=no
  1287         if test x$PKG_CONFIG != xno; then
  1288             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1289                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1290                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1291                 save_CFLAGS="$CFLAGS"
  1292                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1293 
  1294                 dnl This will disable Mir if >= v0.25 is not available
  1295                 AC_TRY_COMPILE([
  1296                 #include <mir_toolkit/mir_client_library.h>
  1297                 ],[
  1298                     MirTouchAction actions = mir_touch_actions
  1299                 ],[
  1300                 video_mir=yes
  1301                 ])
  1302                 CFLAGS="$save_CFLAGS"
  1303             fi
  1304         fi
  1305         AC_MSG_RESULT($video_mir)
  1306 
  1307         if test x$video_mir = xyes; then
  1308             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1309             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1310             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1311             AC_ARG_ENABLE(mir-shared,
  1312 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1313                           , enable_mir_shared=maybe)
  1314 
  1315             dnl FIXME: Do BSD and OS X need special cases?
  1316             case "$host" in
  1317                 *)
  1318                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1319                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1320                     ;;
  1321             esac
  1322 
  1323             if test x$enable_mir_shared = xmaybe; then
  1324                 enable_mir_shared=yes
  1325             fi
  1326             if test x$have_loadso != xyes && \
  1327                test x$enable_mir_shared = xyes; then
  1328                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1329                 enable_mir_shared=no
  1330             fi
  1331             if test x$have_loadso = xyes && \
  1332                test x$enable_mir_shared = xyes && \
  1333                test x$mirclient_lib != x && \
  1334                test x$xkbcommon_lib != x; then
  1335                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1336                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1337                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1338                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1339                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1340             else
  1341                 enable_mir_shared=no
  1342                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1343                 SUMMARY_video="${SUMMARY_video} mir"
  1344             fi
  1345             have_video=yes
  1346         fi
  1347     fi
  1348 }
  1349 
  1350 dnl Check for Native Client stuff
  1351 CheckNativeClient()
  1352 {
  1353         AC_TRY_COMPILE([
  1354           #if !defined(__native_client__)
  1355           #error "NO NACL"
  1356           #endif
  1357         ],[
  1358         ],[
  1359         AC_DEFINE(SDL_VIDEO_DRIVER_NACL)
  1360         AC_DEFINE(SDL_AUDIO_DRIVER_NACL)
  1361         AC_DEFINE(HAVE_POW, 1, [ ])
  1362         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1363         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1364         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1365 
  1366         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1367 
  1368         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1369         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1370         SUMMARY_audio="${SUMMARY_audio} nacl"
  1371         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1372         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1373         ])
  1374 }
  1375 
  1376 
  1377 dnl Find the X11 include and library directories
  1378 CheckX11()
  1379 {
  1380 
  1381 
  1382     AC_ARG_ENABLE(video-x11,
  1383 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1384                   , enable_video_x11=yes)
  1385     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1386         case "$host" in
  1387             *-*-darwin*)
  1388                 # This isn't necessary for X11, but fixes GLX detection
  1389                 if test "x$x_includes" = xNONE && \
  1390                    test "x$x_libraries" = xNONE && \
  1391                    test -d /usr/X11R6/include && \
  1392                    test -d /usr/X11R6/lib; then
  1393                     x_includes="/usr/X11R6/include"
  1394                     x_libraries="/usr/X11R6/lib"
  1395                 fi
  1396                 ;;
  1397         esac
  1398         AC_PATH_X
  1399         AC_PATH_XTRA
  1400         if test x$have_x = xyes; then
  1401             AC_ARG_ENABLE(x11-shared,
  1402 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1403                           , enable_x11_shared=maybe)
  1404 
  1405             case "$host" in
  1406                 *-*-darwin*)
  1407                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1408                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1409                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1410                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1411                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1412                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1413                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1414                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1415                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1416                     ;;
  1417                 *-*-openbsd*)
  1418                     x11_lib='libX11.so'
  1419                     x11ext_lib='libXext.so'
  1420                     xcursor_lib='libXcursor.so'
  1421                     xinerama_lib='libXinerama.so'
  1422                     xinput_lib='libXi.so'
  1423                     xrandr_lib='libXrandr.so'
  1424                     xrender_lib='libXrender.so'
  1425                     xss_lib='libXss.so'
  1426                     xvidmode_lib='libXxf86vm.so'
  1427                     ;;
  1428                 *)
  1429                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1430                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1431                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1432                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1433                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1434                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1435                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1436                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1437                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1438                     ;;
  1439             esac
  1440 
  1441             if test x$ac_cv_func_shmat != xyes; then
  1442                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1443             fi
  1444             CFLAGS="$CFLAGS $X_CFLAGS"
  1445             LDFLAGS="$LDFLAGS $X_LIBS"
  1446 
  1447             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1448                             have_xext_h_hdr=yes,
  1449                             have_xext_h_hdr=no,
  1450                             [#include <X11/Xlib.h>
  1451                              #include <X11/Xproto.h>
  1452                             ])
  1453             if test x$have_xext_h_hdr != xyes; then
  1454                AC_MSG_ERROR([
  1455 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1456                ])
  1457             fi
  1458 
  1459             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1460             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1461             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1462 
  1463             # Needed so SDL applications can include SDL_syswm.h
  1464             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1465 
  1466             if test x$enable_x11_shared = xmaybe; then
  1467                 enable_x11_shared=yes
  1468             fi
  1469             if test x$have_loadso != xyes && \
  1470                test x$enable_x11_shared = xyes; then
  1471                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1472                 enable_x11_shared=no
  1473             fi
  1474             if test x$have_loadso = xyes && \
  1475                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1476                 echo "-- dynamic libX11 -> $x11_lib"
  1477                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1478                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1479                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1480                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1481             else
  1482                 enable_x11_shared=no
  1483                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1484                 SUMMARY_video="${SUMMARY_video} x11"
  1485             fi
  1486             have_video=yes
  1487 
  1488             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1489             have_const_param_XextAddDisplay=no
  1490             AC_TRY_COMPILE([
  1491               #include <X11/Xlib.h>
  1492               #include <X11/Xproto.h>
  1493               #include <X11/extensions/Xext.h>
  1494               #include <X11/extensions/extutil.h>
  1495               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1496             ],[
  1497             ],[
  1498             have_const_param_XextAddDisplay=yes
  1499             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1500             ])
  1501             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1502 
  1503             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1504             AC_MSG_CHECKING([for XGenericEvent])
  1505             have_XGenericEvent=no
  1506             AC_TRY_COMPILE([
  1507               	#include <X11/Xlib.h>
  1508             ],[
  1509 Display *display;
  1510 XEvent event;
  1511 XGenericEventCookie *cookie = &event.xcookie;
  1512 XNextEvent(display, &event);
  1513 XGetEventData(display, cookie);
  1514 XFreeEventData(display, cookie);
  1515             ],[
  1516                 have_XGenericEvent=yes
  1517                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1518             ])
  1519             AC_MSG_RESULT($have_XGenericEvent)
  1520 
  1521             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1522 
  1523             AC_ARG_ENABLE(video-x11-xcursor,
  1524 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1525                             , enable_video_x11_xcursor=yes)
  1526             if test x$enable_video_x11_xcursor = xyes; then
  1527                 definitely_enable_video_x11_xcursor=no
  1528                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1529                                 have_xcursor_h_hdr=yes,
  1530                                 have_xcursor_h_hdr=no,
  1531                                 [#include <X11/Xlib.h>
  1532                                 ])
  1533                 if test x$have_xcursor_h_hdr = xyes; then
  1534                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1535                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1536                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1537                         definitely_enable_video_x11_xcursor=yes
  1538                     else
  1539                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1540                         if test x$have_xcursor_lib = xyes ; then
  1541                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1542                             definitely_enable_video_x11_xcursor=yes
  1543                         fi
  1544                     fi
  1545                 fi
  1546             fi
  1547             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1548                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1549                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1550             fi
  1551             AC_ARG_ENABLE(video-x11-xdbe,
  1552 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1553                             , enable_video_x11_xdbe=yes)
  1554             if test x$enable_video_x11_xdbe = xyes; then
  1555                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1556                                 have_dbe_h_hdr=yes,
  1557                                 have_dbe_h_hdr=no,
  1558                                 [#include <X11/Xlib.h>
  1559                                 ])
  1560                 if test x$have_dbe_h_hdr = xyes; then
  1561                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1562                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1563                 fi
  1564             fi
  1565             AC_ARG_ENABLE(video-x11-xinerama,
  1566 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1567                             , enable_video_x11_xinerama=yes)
  1568             if test x$enable_video_x11_xinerama = xyes; then
  1569                 definitely_enable_video_x11_xinerama=no
  1570                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1571                                 have_xinerama_h_hdr=yes,
  1572                                 have_xinerama_h_hdr=no,
  1573                                 [#include <X11/Xlib.h>
  1574                                 ])
  1575                 if test x$have_xinerama_h_hdr = xyes; then
  1576                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1577                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1578                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1579                         definitely_enable_video_x11_xinerama=yes
  1580                     else
  1581                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1582                         if test x$have_xinerama_lib = xyes ; then
  1583                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1584                             definitely_enable_video_x11_xinerama=yes
  1585                         fi
  1586                     fi
  1587                 fi
  1588             fi
  1589             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1590                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1591                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1592             fi
  1593             AC_ARG_ENABLE(video-x11-xinput,
  1594 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1595                             , enable_video_x11_xinput=yes)
  1596             if test x$enable_video_x11_xinput = xyes; then
  1597                 definitely_enable_video_x11_xinput=no
  1598                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1599                                 have_xinput_h_hdr=yes,
  1600                                 have_xinput_h_hdr=no,
  1601                                 [#include <X11/Xlib.h>
  1602                                 ])
  1603                 if test x$have_xinput_h_hdr = xyes; then
  1604                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1605                         echo "-- dynamic libXi -> $xinput_lib"
  1606                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1607                         definitely_enable_video_x11_xinput=yes
  1608                     else
  1609                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1610                         if test x$have_xinput_lib = xyes ; then
  1611                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1612                             definitely_enable_video_x11_xinput=yes
  1613                         fi
  1614                     fi
  1615                 fi
  1616             fi
  1617             if test x$definitely_enable_video_x11_xinput = xyes; then
  1618                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1619                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1620                 AC_MSG_CHECKING(for xinput2 multitouch)
  1621             	have_xinput2_multitouch=no
  1622             	AC_TRY_COMPILE([
  1623               		#include <X11/Xlib.h>
  1624              		#include <X11/Xproto.h>
  1625 			#include <X11/extensions/XInput2.h>
  1626             	],[
  1627 int event_type = XI_TouchBegin;
  1628 XITouchClassInfo *t;
  1629             	],[
  1630             	have_xinput2_multitouch=yes
  1631             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1632                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1633             	])
  1634             	AC_MSG_RESULT($have_xinput2_multitouch)
  1635             fi
  1636             AC_ARG_ENABLE(video-x11-xrandr,
  1637 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1638                             , enable_video_x11_xrandr=yes)
  1639             if test x$enable_video_x11_xrandr = xyes; then
  1640                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1641                 definitely_enable_video_x11_xrandr=no
  1642                 have_xrandr_h_hdr=no
  1643                 AC_TRY_COMPILE([
  1644                 #include <X11/Xlib.h>
  1645                 #include <X11/extensions/Xrandr.h>
  1646                 ],[
  1647                 XRRScreenResources *res = NULL;
  1648                 ],[
  1649                 have_xrandr_h_hdr=yes
  1650                 ])
  1651                 if test x$have_xrandr_h_hdr = xyes; then
  1652                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1653                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1654                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1655                         definitely_enable_video_x11_xrandr=yes
  1656                     else
  1657                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1658                         if test x$have_xrandr_lib = xyes ; then
  1659                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1660                             definitely_enable_video_x11_xrandr=yes
  1661                         fi
  1662                     fi
  1663                 fi
  1664             fi
  1665             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1666                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1667                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1668             fi
  1669             AC_ARG_ENABLE(video-x11-scrnsaver,
  1670 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1671                             , enable_video_x11_scrnsaver=yes)
  1672             if test x$enable_video_x11_scrnsaver = xyes; then
  1673                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1674                                 have_scrnsaver_h_hdr=yes,
  1675                                 have_scrnsaver_h_hdr=no,
  1676                                 [#include <X11/Xlib.h>
  1677                                 ])
  1678                 if test x$have_scrnsaver_h_hdr = xyes; then
  1679                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1680                         echo "-- dynamic libXss -> $xss_lib"
  1681                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1682                         definitely_enable_video_x11_scrnsaver=yes
  1683                     else
  1684                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1685                         if test x$have_xss_lib = xyes ; then
  1686                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1687                             definitely_enable_video_x11_scrnsaver=yes
  1688                         fi
  1689                     fi
  1690                 fi
  1691             fi
  1692             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1693                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1694                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1695             fi
  1696             AC_ARG_ENABLE(video-x11-xshape,
  1697 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1698                             , enable_video_x11_xshape=yes)
  1699             if test x$enable_video_x11_xshape = xyes; then
  1700                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1701                                 have_shape_h_hdr=yes,
  1702                                 have_shape_h_hdr=no,
  1703                                 [#include <X11/Xlib.h>
  1704                                 ])
  1705                 if test x$have_shape_h_hdr = xyes; then
  1706                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1707                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1708                 fi
  1709             fi
  1710             AC_ARG_ENABLE(video-x11-vm,
  1711 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1712                             , enable_video_x11_vm=yes)
  1713             if test x$enable_video_x11_vm = xyes; then
  1714                 definitely_enable_video_x11_vm=no
  1715                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1716                                 have_vm_h_hdr=yes,
  1717                                 have_vm_h_hdr=no,
  1718                                 [#include <X11/Xlib.h>
  1719                                 ])
  1720                 if test x$have_vm_h_hdr = xyes; then
  1721                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1722                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1723                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1724                         definitely_enable_video_x11_vm=yes
  1725                     else
  1726                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1727                         if test x$have_vm_lib = xyes ; then
  1728                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1729                             definitely_enable_video_x11_vm=yes
  1730                         fi
  1731                     fi
  1732                 fi
  1733             fi
  1734             if test x$definitely_enable_video_x11_vm = xyes; then
  1735                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1736                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1737             fi
  1738         fi
  1739     fi
  1740 }
  1741 
  1742 dnl Set up the Vivante video driver if enabled
  1743 CheckVivanteVideo()
  1744 {
  1745     AC_ARG_ENABLE(video-vivante,
  1746 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1747                   , enable_video_vivante=yes)
  1748     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1749         AC_MSG_CHECKING(for Vivante VDK API)
  1750         have_vivante_vdk=no
  1751         AC_TRY_COMPILE([
  1752           #define LINUX
  1753           #define EGL_API_FB
  1754           #include <gc_vdk.h>
  1755         ],[
  1756         ],[
  1757         have_vivante_vdk=yes
  1758         ])
  1759         AC_MSG_RESULT($have_vivante_vdk)
  1760 
  1761         AC_MSG_CHECKING(for Vivante FB API)
  1762         have_vivante_egl=no
  1763         AC_TRY_COMPILE([
  1764           #define LINUX
  1765           #define EGL_API_FB
  1766           #include <EGL/eglvivante.h>
  1767         ],[
  1768         ],[
  1769         have_vivante_egl=yes
  1770         ])
  1771         AC_MSG_RESULT($have_vivante_egl)
  1772 
  1773         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  1774             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  1775             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  1776             if test x$have_vivante_vdk = xyes; then
  1777                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  1778                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  1779             fi
  1780             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  1781             SUMMARY_video="${SUMMARY_video} vivante"
  1782             have_video=yes
  1783         fi
  1784     fi
  1785 }
  1786 
  1787 dnl Set up the Haiku video driver if enabled
  1788 CheckHaikuVideo()
  1789 {
  1790     if test x$enable_video = xyes; then
  1791         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1792         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1793         have_video=yes
  1794         SUMMARY_video="${SUMMARY_video} haiku"
  1795     fi
  1796 }
  1797 
  1798 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1799 CheckCOCOA()
  1800 {
  1801     AC_ARG_ENABLE(video-cocoa,
  1802 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1803                   , enable_video_cocoa=yes)
  1804     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1805         save_CFLAGS="$CFLAGS"
  1806         dnl work around that we don't have Objective-C support in autoconf
  1807         CFLAGS="$CFLAGS -x objective-c"
  1808         AC_MSG_CHECKING(for Cocoa framework)
  1809         have_cocoa=no
  1810         AC_TRY_COMPILE([
  1811           #import <Cocoa/Cocoa.h>
  1812         ],[
  1813         ],[
  1814         have_cocoa=yes
  1815         ])
  1816         AC_MSG_RESULT($have_cocoa)
  1817         CFLAGS="$save_CFLAGS"
  1818         if test x$have_cocoa = xyes; then
  1819             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1820             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1821             SUMMARY_video="${SUMMARY_video} cocoa"
  1822             have_video=yes
  1823         fi
  1824     fi
  1825 }
  1826 
  1827 dnl Find DirectFB
  1828 CheckDirectFB()
  1829 {
  1830     AC_ARG_ENABLE(video-directfb,
  1831 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1832                   , enable_video_directfb=no)
  1833     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1834         video_directfb=no
  1835 
  1836         DIRECTFB_REQUIRED_VERSION=1.0.0
  1837         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1838         if test x$DIRECTFBCONFIG = xno; then
  1839             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1840             if test x$PKG_CONFIG != xno; then
  1841                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1842                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1843                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1844                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1845                     video_directfb=yes
  1846                 fi
  1847             fi
  1848         else
  1849             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1850             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1851             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1852             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1853             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1854                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1855                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1856                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1857                 video_directfb=yes
  1858             fi
  1859         fi
  1860         if test x$video_directfb = xyes; then
  1861             # SuSE 11.1 installs directfb-config without directfb-devel
  1862             save_CPPFLAGS="$CPPFLAGS"
  1863             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1864             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1865             CPPFLAGS="$save_CPPFLAGS"
  1866             video_directfb=$have_directfb_hdr
  1867         fi
  1868         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1869         AC_MSG_RESULT($video_directfb)
  1870 
  1871         if test x$video_directfb = xyes; then
  1872             AC_ARG_ENABLE(directfb-shared,
  1873 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1874                               , enable_directfb_shared=yes)
  1875 
  1876             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1877             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1878             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1879             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1880 
  1881             AC_MSG_CHECKING(for directfb dynamic loading support)
  1882             directfb_shared=no
  1883             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1884             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1885 AC_MSG_WARN("directfb $directfb_lib")
  1886             if test x$have_loadso != xyes && \
  1887                test x$enable_directfb_shared = xyes; then
  1888                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1889             fi
  1890             if test x$have_loadso = xyes && \
  1891                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1892                 directfb_shared=yes
  1893                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1894                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1895                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1896             else
  1897                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1898                 SUMMARY_video="${SUMMARY_video} directfb"
  1899             fi
  1900             AC_MSG_RESULT($directfb_shared)
  1901             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  1902             have_video=yes
  1903         fi
  1904     fi
  1905 }
  1906 
  1907 dnl Find FusionSound
  1908 CheckFusionSound()
  1909 {
  1910     AC_ARG_ENABLE(fusionsound,
  1911 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1912                   , enable_fusionsound=no)
  1913     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1914         fusionsound=no
  1915 
  1916         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1917 
  1918         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1919         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1920         if test x$PKG_CONFIG != xno; then
  1921             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1922                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1923                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1924                 fusionsound=yes
  1925             fi
  1926         fi
  1927         AC_MSG_RESULT($fusionsound)
  1928 
  1929         if test x$fusionsound = xyes; then
  1930             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1931             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1932             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1933             
  1934             AC_ARG_ENABLE(fusionsound-shared,
  1935 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1936                           , enable_fusionsound_shared=yes)
  1937             fusionsound_shared=no
  1938             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1939             if test x$have_loadso != xyes && \
  1940                test x$enable_fusionsound_shared = xyes; then
  1941                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1942             fi
  1943             if test x$have_loadso = xyes && \
  1944                test x$enable_fusionsound_shared = xyes; then
  1945                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1946                 fusionsound_shared=yes
  1947                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1948             else
  1949                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1950                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1951             fi
  1952             AC_MSG_RESULT($fusionsound_shared)
  1953             
  1954             have_audio=yes
  1955         fi
  1956     fi
  1957 }
  1958 
  1959 dnl rcg04172001 Set up the Null video driver.
  1960 CheckDummyVideo()
  1961 {
  1962     AC_ARG_ENABLE(video-dummy,
  1963 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1964                   , enable_video_dummy=yes)
  1965     if test x$enable_video_dummy = xyes; then
  1966         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1967         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1968         have_video=yes
  1969         SUMMARY_video="${SUMMARY_video} dummy"
  1970     fi
  1971 }
  1972 
  1973 dnl Check to see if OpenGL support is desired
  1974 AC_ARG_ENABLE(video-opengl,
  1975 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1976               , enable_video_opengl=yes)
  1977 
  1978 dnl Find OpenGL
  1979 CheckOpenGLX11()
  1980 {
  1981     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1982         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1983         video_opengl=no
  1984         AC_TRY_COMPILE([
  1985          #include <GL/gl.h>
  1986          #include <GL/glx.h>
  1987         ],[
  1988         ],[
  1989         video_opengl=yes
  1990         ])
  1991         AC_MSG_RESULT($video_opengl)
  1992         if test x$video_opengl = xyes; then
  1993             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1994             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1995             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1996             SUMMARY_video="${SUMMARY_video} opengl"
  1997         fi
  1998     fi
  1999 }
  2000 
  2001 dnl Check to see if OpenGL ES support is desired
  2002 AC_ARG_ENABLE(video-opengles,
  2003 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2004               , enable_video_opengles=yes)
  2005 AC_ARG_ENABLE(video-opengles1,
  2006 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2007               , enable_video_opengles1=yes)
  2008 AC_ARG_ENABLE(video-opengles2,
  2009 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2010               , enable_video_opengles2=yes)
  2011 
  2012 dnl Find OpenGL ES
  2013 CheckOpenGLESX11()
  2014 {
  2015     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2016         AC_MSG_CHECKING(for EGL support)
  2017         video_opengl_egl=no
  2018         AC_TRY_COMPILE([
  2019           #define LINUX
  2020           #define EGL_API_FB
  2021           #include <EGL/egl.h>
  2022           #include <EGL/eglext.h>
  2023         ],[
  2024         ],[
  2025         video_opengl_egl=yes
  2026         ])
  2027         AC_MSG_RESULT($video_opengl_egl)
  2028         if test x$video_opengl_egl = xyes; then
  2029             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2030         fi
  2031             
  2032         if test x$enable_video_opengles1 = xyes; then
  2033             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2034             video_opengles_v1=no
  2035             AC_TRY_COMPILE([
  2036              #include <GLES/gl.h>
  2037              #include <GLES/glext.h>
  2038             ],[
  2039             ],[
  2040             video_opengles_v1=yes
  2041             ])
  2042             AC_MSG_RESULT($video_opengles_v1)
  2043             if test x$video_opengles_v1 = xyes; then
  2044                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2045                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2046                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2047             fi
  2048         fi
  2049         
  2050         if test x$enable_video_opengles2 = xyes; then
  2051             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2052             video_opengles_v2=no
  2053             AC_TRY_COMPILE([
  2054              #include <GLES2/gl2.h>
  2055              #include <GLES2/gl2ext.h>
  2056             ],[
  2057             ],[
  2058             video_opengles_v2=yes
  2059             ])
  2060             AC_MSG_RESULT($video_opengles_v2)
  2061             if test x$video_opengles_v2 = xyes; then
  2062                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2063                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2064                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2065             fi
  2066         fi
  2067     fi
  2068 }
  2069 
  2070 dnl Check for Windows OpenGL
  2071 CheckWINDOWSGL()
  2072 {
  2073     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2074         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2075         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2076         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2077         SUMMARY_video="${SUMMARY_video} opengl"
  2078     fi
  2079 }
  2080 
  2081 dnl Check for Windows OpenGL
  2082 CheckWINDOWSGLES()
  2083 {
  2084     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2085 
  2086         AC_MSG_CHECKING(for EGL support)
  2087         video_opengl_egl=no
  2088         AC_TRY_COMPILE([
  2089          #include <EGL/egl.h>
  2090         ],[
  2091         ],[
  2092         video_opengl_egl=yes
  2093         ])
  2094         AC_MSG_RESULT($video_opengl_egl)
  2095         if test x$video_opengl_egl = xyes; then
  2096             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2097             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2098             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2099         fi
  2100        
  2101         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2102         video_opengles_v2=no
  2103         AC_TRY_COMPILE([
  2104          #include <GLES2/gl2.h>
  2105          #include <GLES2/gl2ext.h>
  2106         ],[
  2107         ],[
  2108         video_opengles_v2=yes
  2109         ])
  2110         AC_MSG_RESULT($video_opengles_v2)
  2111         if test x$video_opengles_v2 = xyes; then
  2112             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2113             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2114             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2115             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2116         fi
  2117     fi
  2118 }
  2119 
  2120 dnl Check for Haiku OpenGL
  2121 CheckHaikuGL()
  2122 {
  2123     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2124         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2125         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2126         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2127         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2128         SUMMARY_video="${SUMMARY_video} opengl"
  2129     fi
  2130 }
  2131 
  2132 dnl Check for MacOS OpenGL
  2133 CheckMacGL()
  2134 {
  2135     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2136         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2137         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2138         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2139         SUMMARY_video="${SUMMARY_video} opengl"
  2140     fi
  2141 }
  2142 
  2143 CheckEmscriptenGLES()
  2144 {
  2145     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2146         AC_MSG_CHECKING(for EGL support)
  2147         video_opengl_egl=no
  2148         AC_TRY_COMPILE([
  2149          #include <EGL/egl.h>
  2150         ],[
  2151         ],[
  2152         video_opengl_egl=yes
  2153         ])
  2154         AC_MSG_RESULT($video_opengl_egl)
  2155         if test x$video_opengl_egl = xyes; then
  2156             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2157         fi
  2158 
  2159         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2160         video_opengles_v2=no
  2161         AC_TRY_COMPILE([
  2162          #include <GLES2/gl2.h>
  2163          #include <GLES2/gl2ext.h>
  2164         ],[
  2165         ],[
  2166         video_opengles_v2=yes
  2167         ])
  2168         AC_MSG_RESULT($video_opengles_v2)
  2169         if test x$video_opengles_v2 = xyes; then
  2170             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2171             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2172             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2173         fi
  2174     fi
  2175 }
  2176 
  2177 dnl See if we can use the new unified event interface in Linux 2.4
  2178 CheckInputEvents()
  2179 {
  2180     dnl Check for Linux 2.4 unified input event interface support
  2181         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2182         use_input_events=no
  2183         AC_TRY_COMPILE([
  2184           #include <linux/input.h>
  2185         ],[
  2186           #ifndef EVIOCGNAME
  2187           #error EVIOCGNAME() ioctl not available
  2188           #endif
  2189         ],[
  2190         use_input_events=yes
  2191         ])
  2192         AC_MSG_RESULT($use_input_events)
  2193         if test x$use_input_events = xyes; then
  2194             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2195             SUMMARY_input="${SUMMARY_input} linuxev"
  2196         fi
  2197 }
  2198 
  2199 dnl See if we can use the kernel kd.h header
  2200 CheckInputKD()
  2201 {
  2202 
  2203     AC_MSG_CHECKING(for Linux kd.h)
  2204     use_input_kd=no
  2205     AC_TRY_COMPILE([
  2206       #include <linux/kd.h>
  2207       #include <linux/keyboard.h>
  2208     ],[
  2209         struct kbentry kbe;
  2210         kbe.kb_table = KG_CTRL;
  2211         ioctl(0, KDGKBENT, &kbe);
  2212     ],[
  2213     use_input_kd=yes
  2214     ])
  2215     AC_MSG_RESULT($use_input_kd)
  2216     if test x$use_input_kd = xyes; then
  2217         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2218         SUMMARY_input="${SUMMARY_input} linuxkd"
  2219     fi
  2220 }
  2221 
  2222 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2223 CheckLibUDev()
  2224 {
  2225     AC_ARG_ENABLE(libudev,
  2226 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2227                         , enable_libudev=yes)
  2228     if test x$enable_libudev = xyes; then
  2229         AC_CHECK_HEADER(libudev.h,
  2230                         have_libudev_h_hdr=yes,
  2231                         have_libudev_h_hdr=no)
  2232         if test x$have_libudev_h_hdr = xyes; then
  2233             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2234 
  2235             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2236             if test x$udev_lib != x; then
  2237                 echo "-- dynamic udev -> $udev_lib"
  2238                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2239             fi
  2240         fi
  2241     fi
  2242 }
  2243 
  2244 dnl See if the platform offers libdbus for various IPC techniques.
  2245 CheckDBus()
  2246 {
  2247     AC_ARG_ENABLE(dbus,
  2248 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2249                         , enable_dbus=yes)
  2250     if test x$enable_dbus = xyes; then
  2251         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2252         if test x$PKG_CONFIG != xno; then
  2253             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2254             save_CFLAGS="$CFLAGS"
  2255             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2256             AC_CHECK_HEADER(dbus/dbus.h,
  2257                             have_dbus_dbus_h_hdr=yes,
  2258                             have_dbus_dbus_h_hdr=no)
  2259             CFLAGS="$save_CFLAGS"
  2260             if test x$have_dbus_dbus_h_hdr = xyes; then
  2261                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2262                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2263                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2264             fi
  2265         fi
  2266     fi
  2267 }
  2268 
  2269 dnl See if the platform wanna IME support.
  2270 CheckIME()
  2271 {
  2272     AC_ARG_ENABLE(ime,
  2273 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2274                   , enable_ime=yes)
  2275     if test x$enable_ime = xyes; then
  2276         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2277             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2278     fi
  2279 }
  2280 
  2281 dnl See if the platform has libibus IME support.
  2282 CheckIBus()
  2283 {
  2284     AC_ARG_ENABLE(ibus,
  2285 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2286                   , enable_ibus=yes)
  2287     if test x$enable_ibus = xyes; then
  2288         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2289         if test x$PKG_CONFIG != xno; then
  2290             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2291             save_CFLAGS="$CFLAGS"
  2292             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2293             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2294                             have_ibus_ibus_h_hdr=yes,
  2295                             have_ibus_ibus_h_hdr=no)
  2296             AC_CHECK_HEADER(sys/inotify.h,
  2297                             have_inotify_inotify_h_hdr=yes,
  2298                             have_inotify_inotify_h_hdr=no)
  2299             CFLAGS="$save_CFLAGS"
  2300             if test x$have_ibus_ibus_h_hdr = xyes; then
  2301                 if test x$enable_ime != xyes; then
  2302                     AC_MSG_WARN([IME support is required for IBus.])
  2303                     have_ibus_ibus_h_hdr=no
  2304                 elif test x$enable_dbus != xyes; then
  2305                     AC_MSG_WARN([DBus support is required for IBus.])
  2306                     have_ibus_ibus_h_hdr=no
  2307                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2308                     AC_MSG_WARN([INotify support is required for IBus.])
  2309                     have_ibus_ibus_h_hdr=no
  2310                 else
  2311                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2312                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2313                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2314                fi
  2315             fi
  2316         fi
  2317     fi
  2318 }
  2319 
  2320 dnl See if the platform has fcitx IME support.
  2321 CheckFcitx()
  2322 {
  2323     AC_ARG_ENABLE(fcitx,
  2324 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2325                   , enable_fcitx=yes)
  2326     if test x$enable_fcitx = xyes; then
  2327         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2328         if test x$PKG_CONFIG != xno; then
  2329             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2330             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2331             AC_CHECK_HEADER(fcitx/frontend.h,
  2332                             have_fcitx_frontend_h_hdr=yes,
  2333                             have_fcitx_frontend_h_hdr=no)
  2334             CFLAGS="$save_CFLAGS"
  2335             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2336                 if test x$enable_ime != xyes; then
  2337                     AC_MSG_WARN([IME support is required for fcitx.])
  2338                     have_fcitx_frontend_h_hdr=no
  2339                 elif test x$enable_dbus != xyes; then
  2340                     AC_MSG_WARN([DBus support is required for fcitx.])
  2341                     have_fcitx_frontend_h_hdr=no
  2342                 else
  2343                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2344                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2345                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2346                fi
  2347             fi
  2348         fi
  2349     fi
  2350 }
  2351 
  2352 dnl See if we can use the Touchscreen input library
  2353 CheckTslib()
  2354 {
  2355     AC_ARG_ENABLE(input-tslib,
  2356 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2357                   , enable_input_tslib=yes)
  2358     if test x$enable_input_tslib = xyes; then
  2359         AC_MSG_CHECKING(for Touchscreen library support)
  2360         enable_input_tslib=no
  2361         AC_TRY_COMPILE([
  2362           #include "tslib.h"
  2363         ],[
  2364         ],[
  2365         enable_input_tslib=yes
  2366         ])
  2367         AC_MSG_RESULT($enable_input_tslib)
  2368         if test x$enable_input_tslib = xyes; then
  2369             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2370             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2371             SUMMARY_input="${SUMMARY_input} ts"
  2372         fi
  2373     fi
  2374 }
  2375 
  2376 dnl See what type of thread model to use on Linux and Solaris
  2377 CheckPTHREAD()
  2378 {
  2379     dnl Check for pthread support
  2380     AC_ARG_ENABLE(pthreads,
  2381 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2382                   , enable_pthreads=yes)
  2383     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2384     AC_ARG_ENABLE(pthread-sem,
  2385 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2386                   , enable_pthread_sem=yes)
  2387     case "$host" in
  2388          *-*-androideabi*)
  2389             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2390             pthread_lib=""
  2391             ;;
  2392         *-*-linux*|*-*-uclinux*)
  2393             pthread_cflags="-D_REENTRANT"
  2394             pthread_lib="-lpthread"
  2395             ;;
  2396         *-*-bsdi*)
  2397             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2398             pthread_lib=""
  2399             ;;
  2400         *-*-darwin*)
  2401             pthread_cflags="-D_THREAD_SAFE"
  2402 # causes Carbon.p complaints?
  2403 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2404             ;;
  2405         *-*-freebsd*|*-*-dragonfly*)
  2406             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2407             pthread_lib="-pthread"
  2408             ;;
  2409         *-*-netbsd*)
  2410             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2411             pthread_lib="-lpthread"
  2412             ;;
  2413         *-*-openbsd*)
  2414             pthread_cflags="-D_REENTRANT"
  2415             pthread_lib="-pthread"
  2416             ;;
  2417         *-*-solaris2.9)
  2418             # From Solaris 9+, posix4's preferred name is rt.
  2419             pthread_cflags="-D_REENTRANT"
  2420             pthread_lib="-lpthread -lrt"
  2421             ;;
  2422         *-*-solaris2.10)
  2423             # Solaris 10+ merged pthread into libc.
  2424             pthread_cflags="-D_REENTRANT"
  2425             pthread_lib="-lrt"
  2426             ;;
  2427         *-*-solaris*)
  2428             # Solaris 11+ merged rt into libc.
  2429             pthread_cflags="-D_REENTRANT"
  2430             pthread_lib=""
  2431             ;;
  2432         *-*-sysv5*)
  2433             pthread_cflags="-D_REENTRANT -Kthread"
  2434             pthread_lib=""
  2435             ;;
  2436         *-*-aix*)
  2437             pthread_cflags="-D_REENTRANT -mthreads"
  2438             pthread_lib="-lpthread"
  2439             ;;
  2440         *-*-hpux11*)
  2441             pthread_cflags="-D_REENTRANT"
  2442             pthread_lib="-L/usr/lib -lpthread"
  2443             ;;
  2444         *-*-haiku*)
  2445             pthread_cflags="-D_REENTRANT"
  2446             pthread_lib=""
  2447             ;;
  2448         *)
  2449             pthread_cflags="-D_REENTRANT"
  2450             pthread_lib="-lpthread"
  2451             ;;
  2452     esac
  2453     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2454         # Save the original compiler flags and libraries
  2455         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2456         # Add the pthread compiler flags and libraries
  2457         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2458         # Check to see if we have pthread support on this system
  2459         AC_MSG_CHECKING(for pthreads)
  2460         use_pthreads=no
  2461         AC_TRY_LINK([
  2462          #include <pthread.h>
  2463         ],[
  2464          pthread_attr_t type;
  2465          pthread_attr_init(&type);
  2466         ],[
  2467         use_pthreads=yes
  2468         ])
  2469         AC_MSG_RESULT($use_pthreads)
  2470         # Restore the compiler flags and libraries
  2471         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2472 
  2473         # Do futher testing if we have pthread support...
  2474         if test x$use_pthreads = xyes; then
  2475             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2476             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2477             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2478             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2479 
  2480             # Save the original compiler flags and libraries
  2481             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2482             # Add the pthread compiler flags and libraries
  2483             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2484 
  2485             # Check to see if recursive mutexes are available
  2486             AC_MSG_CHECKING(for recursive mutexes)
  2487             has_recursive_mutexes=no
  2488             if test x$has_recursive_mutexes = xno; then
  2489                 AC_TRY_LINK([
  2490                   #define _GNU_SOURCE 1
  2491                   #include <pthread.h>
  2492                 ],[
  2493                   pthread_mutexattr_t attr;
  2494                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2495                 ],[
  2496                 has_recursive_mutexes=yes
  2497                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2498                 ])
  2499             fi
  2500             if test x$has_recursive_mutexes = xno; then
  2501                 AC_TRY_LINK([
  2502                   #define _GNU_SOURCE 1
  2503                   #include <pthread.h>
  2504                 ],[
  2505                   pthread_mutexattr_t attr;
  2506                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2507                 ],[
  2508                 has_recursive_mutexes=yes
  2509                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2510                 ])
  2511             fi
  2512             AC_MSG_RESULT($has_recursive_mutexes)
  2513 
  2514             # Check to see if pthread semaphore support is missing
  2515             if test x$enable_pthread_sem = xyes; then
  2516                 AC_MSG_CHECKING(for pthread semaphores)
  2517                 have_pthread_sem=no
  2518                 AC_TRY_COMPILE([
  2519                   #include <pthread.h>
  2520                   #include <semaphore.h>
  2521                 ],[
  2522                 ],[
  2523                 have_pthread_sem=yes
  2524                 ])
  2525                 AC_MSG_RESULT($have_pthread_sem)
  2526             fi
  2527             if test x$have_pthread_sem = xyes; then
  2528                 AC_MSG_CHECKING(for sem_timedwait)
  2529                 have_sem_timedwait=no
  2530                 AC_TRY_LINK([
  2531                   #include <pthread.h>
  2532                   #include <semaphore.h>
  2533                 ],[
  2534                   sem_timedwait(NULL, NULL);
  2535                 ],[
  2536                 have_sem_timedwait=yes
  2537                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2538                 ])
  2539                 AC_MSG_RESULT($have_sem_timedwait)
  2540             fi
  2541 
  2542             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2543             if test x$have_pthread_np_h = xyes; then
  2544                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2545             fi
  2546 
  2547             # Check to see if pthread naming is available
  2548             AC_MSG_CHECKING(for pthread_setname_np)
  2549             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2550               has_pthread_setname_np=yes
  2551               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2552             ],[
  2553               has_pthread_setname_np=no
  2554             ])
  2555             AC_MSG_RESULT($has_pthread_setname_np)
  2556 
  2557             AC_MSG_CHECKING(for pthread_set_name_np)
  2558             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2559               has_pthread_set_name_np=yes
  2560               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2561             ],[
  2562               has_pthread_set_name_np=no
  2563             ])
  2564             AC_MSG_RESULT($has_pthread_set_name_np)
  2565 
  2566             # Restore the compiler flags and libraries
  2567             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2568 
  2569             # Basic thread creation functions
  2570             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2571 
  2572             # Semaphores
  2573             # We can fake these with mutexes and condition variables if necessary
  2574             if test x$have_pthread_sem = xyes; then
  2575                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2576             else
  2577                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2578             fi
  2579 
  2580             # Mutexes
  2581             # We can fake these with semaphores if necessary
  2582             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2583 
  2584             # Condition variables
  2585             # We can fake these with semaphores and mutexes if necessary
  2586             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2587 
  2588             # Thread local storage
  2589             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2590 
  2591             have_threads=yes
  2592         fi
  2593     fi
  2594 }
  2595 
  2596 dnl Determine whether the compiler can produce Windows executables
  2597 CheckWINDOWS()
  2598 {
  2599     AC_MSG_CHECKING(Windows compiler)
  2600     have_win32_gcc=no
  2601     AC_TRY_COMPILE([
  2602      #include <windows.h>
  2603     ],[
  2604     ],[
  2605     have_win32_gcc=yes
  2606     ])
  2607     AC_MSG_RESULT($have_win32_gcc)
  2608     if test x$have_win32_gcc != xyes; then
  2609        AC_MSG_ERROR([
  2610 *** Your compiler ($CC) does not produce Windows executables!
  2611        ])
  2612     fi
  2613 
  2614     AC_MSG_CHECKING(Windows CE)
  2615     have_wince=no
  2616     AC_TRY_COMPILE([
  2617 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2618 #error This is not Windows CE
  2619 #endif
  2620     ],[
  2621     ],[
  2622     have_wince=yes
  2623        AC_MSG_ERROR([
  2624 *** Sorry, Windows CE is no longer supported.
  2625        ])
  2626     ])
  2627     AC_MSG_RESULT($have_wince)
  2628 
  2629     # This fixes Windows stack alignment with newer GCC
  2630     CheckStackBoundary
  2631 }
  2632 
  2633 dnl Find the DirectX includes and libraries
  2634 CheckDIRECTX()
  2635 {
  2636     AC_ARG_ENABLE(directx,
  2637 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2638                   , enable_directx=yes)
  2639     if test x$enable_directx = xyes; then
  2640         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2641         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2642         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2643         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2644         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2645         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2646         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2647         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2648 
  2649         if test x$have_ddraw = xyes; then
  2650             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  2651         fi
  2652         if test x$have_dinput = xyes; then
  2653             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  2654         fi
  2655         if test x$have_dsound = xyes; then
  2656             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  2657         fi
  2658         if test x$have_dxgi = xyes; then
  2659             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  2660         fi
  2661         if test x$have_xinput = xyes; then
  2662             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  2663         fi
  2664 
  2665         SUMMARY_video="${SUMMARY_video} directx"
  2666         SUMMARY_audio="${SUMMARY_audio} directx"
  2667 
  2668         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2669         # FIXME:  ...so force it off for now.
  2670         case "$host" in
  2671             *-*-cygwin*)
  2672             have_dinput=false
  2673             ;;
  2674         esac
  2675     fi
  2676 }
  2677 
  2678 dnl Check for the dlfcn.h interface for dynamically loading objects
  2679 CheckDLOPEN()
  2680 {
  2681     AC_ARG_ENABLE(sdl-dlopen,
  2682 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2683                   , enable_sdl_dlopen=yes)
  2684     if test x$enable_sdl_dlopen = xyes; then
  2685         AC_MSG_CHECKING(for dlopen)
  2686         have_dlopen=no
  2687         AC_TRY_COMPILE([
  2688          #include <dlfcn.h>
  2689         ],[
  2690          void *handle = dlopen("", RTLD_NOW);
  2691          const char *loaderror = (char *) dlerror();
  2692         ],[
  2693         have_dlopen=yes
  2694         ])
  2695         AC_MSG_RESULT($have_dlopen)
  2696 
  2697         if test x$have_dlopen = xyes; then
  2698             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2699                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2700                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2701             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2702             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2703             have_loadso=yes
  2704         fi
  2705     fi
  2706 }
  2707 
  2708 dnl Check for the usbhid(3) library on *BSD
  2709 CheckUSBHID()
  2710 {
  2711     case "$host" in
  2712         *-*-*bsd*)
  2713             if test x$enable_joystick = xyes; then
  2714                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2715                 if test x$have_libusbhid = xyes; then
  2716                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2717                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2718                     USB_LIBS="$USB_LIBS -lusbhid"
  2719                 else
  2720                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2721                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2722                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2723                 fi
  2724                     
  2725                 save_CFLAGS="$CFLAGS"
  2726                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2727 
  2728                 AC_MSG_CHECKING(for usbhid)
  2729                 have_usbhid=no
  2730                 AC_TRY_COMPILE([
  2731                   #include <sys/types.h>
  2732                   #if defined(HAVE_USB_H)
  2733                   #include <usb.h>
  2734                   #endif
  2735                   #ifdef __DragonFly__
  2736                   # include <bus/usb/usb.h>
  2737                   # include <bus/usb/usbhid.h>
  2738                   #else
  2739                   # include <dev/usb/usb.h>
  2740                   # include <dev/usb/usbhid.h>
  2741                   #endif
  2742                   #if defined(HAVE_USBHID_H)
  2743                   #include <usbhid.h>
  2744                   #elif defined(HAVE_LIBUSB_H)
  2745                   #include <libusb.h>
  2746                   #elif defined(HAVE_LIBUSBHID_H)
  2747                   #include <libusbhid.h>
  2748                   #endif
  2749                 ],[
  2750                   struct report_desc *repdesc;
  2751                   struct usb_ctl_report *repbuf;
  2752                   hid_kind_t hidkind;
  2753                 ],[
  2754                 have_usbhid=yes
  2755                 ])
  2756                 AC_MSG_RESULT($have_usbhid)
  2757 
  2758                 if test x$have_usbhid = xyes; then
  2759                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2760                     have_usbhid_ucr_data=no
  2761                     AC_TRY_COMPILE([
  2762                       #include <sys/types.h>
  2763                       #if defined(HAVE_USB_H)
  2764                       #include <usb.h>
  2765                       #endif
  2766                       #ifdef __DragonFly__
  2767                       # include <bus/usb/usb.h>
  2768                       # include <bus/usb/usbhid.h>
  2769                       #else
  2770                       # include <dev/usb/usb.h>
  2771                       # include <dev/usb/usbhid.h>
  2772                       #endif
  2773                       #if defined(HAVE_USBHID_H)
  2774                       #include <usbhid.h>
  2775                       #elif defined(HAVE_LIBUSB_H)
  2776                       #include <libusb.h>
  2777                       #elif defined(HAVE_LIBUSBHID_H)
  2778                       #include <libusbhid.h>
  2779                       #endif
  2780                     ],[
  2781                       struct usb_ctl_report buf;
  2782                       if (buf.ucr_data) { }
  2783                     ],[
  2784                     have_usbhid_ucr_data=yes
  2785                     ])
  2786                     if test x$have_usbhid_ucr_data = xyes; then
  2787                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2788                     fi
  2789                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2790                     
  2791                     AC_MSG_CHECKING(for new usbhid API)
  2792                     have_usbhid_new=no
  2793                     AC_TRY_COMPILE([
  2794                       #include <sys/types.h>
  2795                       #if defined(HAVE_USB_H)
  2796                       #include <usb.h>
  2797                       #endif
  2798                       #ifdef __DragonFly__
  2799                       #include <bus/usb/usb.h>
  2800                       #include <bus/usb/usbhid.h>
  2801                       #else
  2802                       #include <dev/usb/usb.h>
  2803                       #include <dev/usb/usbhid.h>
  2804                       #endif
  2805                       #if defined(HAVE_USBHID_H)
  2806                       #include <usbhid.h>
  2807                       #elif defined(HAVE_LIBUSB_H)
  2808                       #include <libusb.h>
  2809                       #elif defined(HAVE_LIBUSBHID_H)
  2810                       #include <libusbhid.h>
  2811                       #endif
  2812                     ],[
  2813                       report_desc_t d;
  2814                       hid_start_parse(d, 1, 1);
  2815                     ],[
  2816                     have_usbhid_new=yes
  2817                     ])
  2818                     if test x$have_usbhid_new = xyes; then
  2819                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2820                     fi
  2821                     AC_MSG_RESULT($have_usbhid_new)
  2822 
  2823                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2824                     have_machine_joystick=no
  2825                     AC_TRY_COMPILE([
  2826                       #include <machine/joystick.h>
  2827                     ],[
  2828                       struct joystick t;
  2829                     ],[
  2830                     have_machine_joystick=yes
  2831                     ])
  2832                     if test x$have_machine_joystick = xyes; then
  2833                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2834                     fi
  2835                     AC_MSG_RESULT($have_machine_joystick)
  2836 
  2837                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2838                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2839                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2840                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2841                     have_joystick=yes
  2842                 fi
  2843                 CFLAGS="$save_CFLAGS"
  2844             fi
  2845         ;;
  2846     esac
  2847 }
  2848 
  2849 dnl Check for clock_gettime()
  2850 CheckClockGettime()
  2851 {
  2852     AC_ARG_ENABLE(clock_gettime,
  2853 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2854                   , enable_clock_gettime=yes)
  2855     if test x$enable_clock_gettime = xyes; then
  2856         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2857         if test x$have_clock_gettime = xyes; then
  2858             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2859             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2860         else
  2861             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2862             if test x$have_clock_gettime = xyes; then
  2863                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2864                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2865             fi
  2866         fi
  2867     fi
  2868 }
  2869 
  2870 dnl Check for a valid linux/version.h
  2871 CheckLinuxVersion()
  2872 {
  2873     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2874     if test x$have_linux_version_h = xyes; then
  2875         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2876     fi
  2877 }
  2878 
  2879 dnl Check if we want to use RPATH
  2880 CheckRPATH()
  2881 {
  2882     AC_ARG_ENABLE(rpath,
  2883 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2884                   , enable_rpath=yes)
  2885 }
  2886 
  2887 dnl Do this on all platforms, before everything else (other things might want to override it).
  2888 CheckWarnAll
  2889 
  2890 dnl Set up the configuration based on the host platform!
  2891 case "$host" in
  2892     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2893         case "$host" in
  2894             *-raspberry-linux*)
  2895                 # Raspberry Pi
  2896                 ARCH=linux
  2897                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2898                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2899                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2900                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2901                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2902 
  2903                 if test x$enable_video = xyes; then
  2904                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2905                     # FIXME: confdefs? Not AC_DEFINE?
  2906                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2907                     SUMMARY_video="${SUMMARY_video} rpi"
  2908                 fi
  2909                 ;;
  2910             *-*-androideabi*)
  2911                 # Android
  2912                 ARCH=android
  2913                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  2914                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  2915                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  2916                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  2917                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  2918 
  2919                 if test x$enable_video = xyes; then
  2920                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  2921                     # FIXME: confdefs? Not AC_DEFINE?
  2922                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  2923                     SUMMARY_video="${SUMMARY_video} android"
  2924                 fi
  2925                 ;;
  2926             *-*-linux*)         ARCH=linux ;;
  2927             *-*-uclinux*)       ARCH=linux ;;
  2928             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2929             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2930             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2931             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2932             *-*-bsdi*)          ARCH=bsdi ;;
  2933             *-*-freebsd*)       ARCH=freebsd ;;
  2934             *-*-dragonfly*)     ARCH=freebsd ;;
  2935             *-raspberry-netbsd*)
  2936                 # Raspberry Pi
  2937                 ARCH=netbsd
  2938                 RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  2939                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2940                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2941                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2942                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host -ldl"
  2943 
  2944                 if test x$enable_video = xyes; then
  2945                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2946                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2947                     SUMMARY_video="${SUMMARY_video} raspberry"
  2948                 fi
  2949                 ;;
  2950             *-*-netbsd*)        ARCH=netbsd ;;
  2951             *-*-openbsd*)       ARCH=openbsd ;;
  2952             *-*-sysv5*)         ARCH=sysv5 ;;
  2953             *-*-solaris*)       ARCH=solaris ;;
  2954             *-*-hpux*)          ARCH=hpux ;;
  2955             *-*-aix*)           ARCH=aix ;;
  2956             *-*-minix*)         ARCH=minix ;;
  2957         esac
  2958         CheckVisibilityHidden
  2959         CheckDeclarationAfterStatement
  2960         CheckDummyVideo
  2961         CheckDiskAudio
  2962         CheckDummyAudio
  2963         CheckDLOPEN
  2964         CheckOSS
  2965         CheckALSA
  2966         CheckPulseAudio
  2967         CheckARTSC
  2968         CheckESD
  2969         CheckNAS
  2970         CheckSNDIO
  2971         CheckX11
  2972         CheckDirectFB
  2973         CheckFusionSound
  2974         CheckOpenGLX11
  2975         CheckOpenGLESX11
  2976         CheckMir
  2977         CheckWayland
  2978         CheckLibUDev
  2979         CheckDBus
  2980         CheckIME
  2981         CheckIBus
  2982         CheckFcitx
  2983         case $ARCH in
  2984           linux)
  2985               CheckInputEvents
  2986               CheckInputKD
  2987           ;;
  2988         esac
  2989         CheckTslib
  2990         CheckUSBHID
  2991         CheckPTHREAD
  2992         CheckClockGettime
  2993         CheckLinuxVersion
  2994         CheckRPATH
  2995         CheckVivanteVideo
  2996         # Set up files for the audio library
  2997         if test x$enable_audio = xyes; then
  2998           case $ARCH in
  2999             sysv5|solaris|hpux)
  3000                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3001                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3002                 have_audio=yes
  3003             ;;
  3004             netbsd)  # Don't use this on OpenBSD, it's busted.
  3005                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  3006                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  3007                 have_audio=yes
  3008             ;;
  3009             aix)
  3010                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3011                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3012                 have_audio=yes
  3013             ;;
  3014             android)
  3015                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3016                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3017                 SUMMARY_audio="${SUMMARY_audio} android"
  3018                 have_audio=yes
  3019             ;;
  3020           esac
  3021         fi
  3022         # Set up files for the joystick library
  3023         if test x$enable_joystick = xyes; then
  3024           case $ARCH in
  3025             linux)
  3026                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3027                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3028                 have_joystick=yes
  3029             ;;
  3030             android)
  3031                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3032                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3033                 have_joystick=yes
  3034             ;;
  3035           esac
  3036         fi
  3037         # Set up files for the haptic library
  3038         if test x$enable_haptic = xyes; then
  3039            if test x$use_input_events = xyes; then
  3040              case $ARCH in
  3041                linux)
  3042                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3043                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3044                    have_haptic=yes
  3045                ;;
  3046              esac
  3047            fi
  3048         fi
  3049         # Set up files for the power library
  3050         if test x$enable_power = xyes; then
  3051              case $ARCH in
  3052                linux)
  3053                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3054                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3055                    have_power=yes
  3056                ;;
  3057                android)
  3058                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3059                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3060                    have_power=yes
  3061                ;;
  3062              esac
  3063         fi
  3064         # Set up files for the filesystem library
  3065         if test x$enable_filesystem = xyes; then
  3066              case $ARCH in
  3067                android)
  3068                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3069                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3070                    have_filesystem=yes
  3071                ;;
  3072                *)
  3073                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3074                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3075                    have_filesystem=yes
  3076                ;;
  3077              esac
  3078         fi
  3079         # Set up files for the timer library
  3080         if test x$enable_timers = xyes; then
  3081             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3082             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3083             have_timers=yes
  3084         fi
  3085         # Set up files for udev hotplugging support
  3086         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3087             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3088         fi
  3089         # Set up files for evdev input
  3090         if test x$use_input_events = xyes; then
  3091             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  3092         fi       
  3093         ;;
  3094     *-*-cygwin* | *-*-mingw32*)
  3095         ARCH=win32
  3096         if test "$build" != "$host"; then # cross-compiling
  3097             # Default cross-compile location
  3098             ac_default_prefix=/usr/local/cross-tools/$host
  3099         else
  3100             # Look for the location of the tools and install there
  3101             if test "$BUILD_PREFIX" != ""; then
  3102                 ac_default_prefix=$BUILD_PREFIX
  3103             fi
  3104         fi
  3105         CheckDummyVideo
  3106         CheckDiskAudio
  3107         CheckDummyAudio
  3108         CheckWINDOWS
  3109         CheckWINDOWSGL
  3110         CheckWINDOWSGLES
  3111         CheckDIRECTX
  3112 
  3113         # Set up the core platform files
  3114         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3115 
  3116         # Set up files for the video library
  3117         if test x$enable_video = xyes; then
  3118             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3119             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3120             have_video=yes
  3121             AC_ARG_ENABLE(render-d3d,
  3122 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3123                                 , enable_render_d3d=yes)
  3124             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3125                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3126             fi
  3127             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3128                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3129             fi
  3130         fi
  3131         # Set up files for the audio library
  3132         if test x$enable_audio = xyes; then
  3133             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3134             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3135             if test x$have_dsound = xyes; then
  3136                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3137                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3138             fi
  3139             if test x$have_xaudio2 = xyes; then
  3140                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  3141                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  3142             fi
  3143             have_audio=yes
  3144         fi
  3145         # Set up files for the joystick library
  3146         if test x$enable_joystick = xyes; then
  3147             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3148                 if test x$have_xinput = xyes; then
  3149                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3150                 fi
  3151                 if test x$have_dinput = xyes; then
  3152                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3153                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3154                 fi
  3155             else
  3156                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3157             fi
  3158             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3159             have_joystick=yes
  3160         fi
  3161         if test x$enable_haptic = xyes; then
  3162             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3163                 if test x$have_xinput = xyes; then
  3164                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3165                 fi
  3166                 if test x$have_dinput = xyes; then
  3167                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3168                 fi
  3169                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3170                 have_haptic=yes
  3171             fi
  3172         fi
  3173         if test x$enable_power = xyes; then
  3174             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3175             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3176             have_power=yes
  3177         fi
  3178         if test x$enable_filesystem = xyes; then
  3179             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3180             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3181             have_filesystem=yes
  3182         fi
  3183         # Set up files for the thread library
  3184         if test x$enable_threads = xyes; then
  3185             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3186             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3187             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3188             have_threads=yes
  3189         fi
  3190         # Set up files for the timer library
  3191         if test x$enable_timers = xyes; then
  3192             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3193             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3194             have_timers=yes
  3195         fi
  3196         # Set up files for the shared object loading library
  3197         if test x$enable_loadso = xyes; then
  3198             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3199             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3200             have_loadso=yes
  3201         fi
  3202         # Set up the system libraries we need
  3203         if test -f /lib/w32api/libuuid.a; then
  3204             LIBUUID=/lib/w32api/libuuid.a
  3205         else
  3206             LIBUUID=-luuid
  3207         fi
  3208         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3209         # The Windows platform requires special setup
  3210         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3211         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3212         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3213         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3214 
  3215         # Check to see if this is a mingw or cygwin build
  3216         have_mingw32=
  3217         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3218         if test x$have_mingw32 = xyes; then
  3219             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3220         else
  3221             SDL_LIBS="-lcygwin $SDL_LIBS"
  3222         fi
  3223         ;;
  3224 
  3225     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3226     *-*-beos*)
  3227         AC_MSG_ERROR([
  3228 *** BeOS support has been removed as of SDL 2.0.2.
  3229         ])
  3230         ;;
  3231 
  3232     *-*-haiku*)
  3233         ARCH=haiku
  3234         ac_default_prefix=/boot/system
  3235         CheckDummyVideo
  3236         CheckDiskAudio
  3237         CheckDummyAudio
  3238         CheckDLOPEN
  3239         CheckHaikuVideo
  3240         CheckHaikuGL
  3241         CheckPTHREAD
  3242 
  3243         # Set up files for the audio library
  3244         if test x$enable_audio = xyes; then
  3245             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3246             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3247             have_audio=yes
  3248         fi
  3249         # Set up files for the joystick library
  3250         if test x$enable_joystick = xyes; then
  3251             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3252             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3253             have_joystick=yes
  3254         fi
  3255         # Set up files for the timer library
  3256         if test x$enable_timers = xyes; then
  3257             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3258             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3259             have_timers=yes
  3260         fi
  3261         # Set up files for the system power library
  3262         if test x$enable_power = xyes; then
  3263             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3264             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3265             have_power=yes
  3266         fi
  3267         # Set up files for the system filesystem library
  3268         if test x$enable_filesystem = xyes; then
  3269             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3270             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3271             have_filesystem=yes
  3272         fi
  3273         # The Haiku platform requires special setup.
  3274         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3275         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3276         ;;
  3277     arm*-apple-darwin*)
  3278         # iOS - We are not writing anything to confdefs.h because you have to replace
  3279         # SDL_config.h for SDL_config_iphoneos.h anyway
  3280         ARCH=ios
  3281 
  3282         CheckVisibilityHidden
  3283         CheckDeclarationAfterStatement
  3284         CheckDummyVideo
  3285         CheckDiskAudio
  3286         CheckDummyAudio
  3287         CheckDLOPEN
  3288         CheckCOCOA
  3289         CheckPTHREAD
  3290 
  3291 
  3292         # Set up files for the audio library
  3293         if test x$enable_audio = xyes; then
  3294             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3295             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3296             have_audio=yes
  3297         fi
  3298         # Set up files for the joystick library
  3299         if test x$enable_joystick = xyes; then
  3300             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3301             have_joystick=yes
  3302         fi
  3303         # Set up files for the haptic library
  3304         #if test x$enable_haptic = xyes; then
  3305         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3306         #    have_haptic=yes
  3307         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3308         #fi
  3309         # Set up files for the power library
  3310         if test x$enable_power = xyes; then
  3311             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3312             have_power=yes
  3313         fi
  3314         # Set up files for the filesystem library
  3315         if test x$enable_filesystem = xyes; then
  3316             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3317             have_filesystem=yes
  3318         fi
  3319         # Set up files for the timer library
  3320         if test x$enable_timers = xyes; then
  3321             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3322             have_timers=yes
  3323         fi
  3324         # Set up additional files for the file library
  3325         if test x$enable_file = xyes; then
  3326             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3327         fi
  3328         # The iOS platform requires special setup.
  3329         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3330         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3331         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3332         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3333         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3334         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3335         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3336         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3337         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3338         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3339         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3340         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3341         ;;
  3342     *-*-darwin* )
  3343         # This could be either full "Mac OS X", or plain "Darwin" which is
  3344         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3345         # Next line is broken, and a few files below require Mac OS X (full)
  3346         ARCH=macosx
  3347 
  3348         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3349         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3350         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3351 
  3352         CheckVisibilityHidden
  3353         CheckDeclarationAfterStatement
  3354         CheckDummyVideo
  3355         CheckDiskAudio
  3356         CheckDummyAudio
  3357         CheckDLOPEN
  3358         CheckCOCOA
  3359         CheckX11
  3360         CheckMacGL
  3361         CheckOpenGLX11
  3362         CheckPTHREAD
  3363 
  3364         # Set up files for the audio library
  3365         if test x$enable_audio = xyes; then
  3366             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3367             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3368             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3369             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3370             have_audio=yes
  3371         fi
  3372         # Set up files for the joystick library
  3373         if test x$enable_joystick = xyes; then
  3374             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3375             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3376             have_joystick=yes
  3377         fi
  3378         # Set up files for the haptic library
  3379         if test x$enable_haptic = xyes; then
  3380             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3381             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3382             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3383             have_haptic=yes
  3384         fi
  3385         # Set up files for the power library
  3386         if test x$enable_power = xyes; then
  3387             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3388             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3389             have_power=yes
  3390         fi
  3391         # Set up files for the filesystem library
  3392         if test x$enable_filesystem = xyes; then
  3393             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3394             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3395             have_filesystem=yes
  3396         fi
  3397         # Set up files for the timer library
  3398         if test x$enable_timers = xyes; then
  3399             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3400             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3401             have_timers=yes
  3402         fi
  3403         # Set up additional files for the file library
  3404         if test x$enable_file = xyes; then
  3405             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3406         fi
  3407         # The Mac OS X platform requires special setup.
  3408         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3409         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3410         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3411         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3412         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3413         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3414         ;;
  3415     *-nacl|*-pnacl)
  3416         ARCH=nacl
  3417         CheckNativeClient
  3418         CheckDummyAudio
  3419         CheckDummyVideo
  3420         CheckInputEvents
  3421         CheckPTHREAD
  3422         
  3423         # Set up files for the timer library
  3424         if test x$enable_timers = xyes; then
  3425             AC_DEFINE(SDL_TIMER_UNIX)
  3426             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3427             have_timers=yes
  3428         fi
  3429         
  3430         if test x$enable_filesystem = xyes; then
  3431             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3432             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3433             have_filesystem=yes
  3434         fi
  3435         ;;
  3436     *-*-emscripten* )
  3437         if test x$enable_video = xyes; then
  3438             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3439             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3440             have_video=yes
  3441             SUMMARY_video="${SUMMARY_video} emscripten"
  3442         fi
  3443 
  3444         if test x$enable_audio = xyes; then
  3445             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3446             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3447             have_audio=yes
  3448             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3449         fi
  3450 
  3451         CheckVisibilityHidden
  3452         CheckDeclarationAfterStatement
  3453         CheckDummyVideo
  3454         CheckDiskAudio
  3455         CheckDummyAudio
  3456         CheckDLOPEN
  3457         CheckClockGettime
  3458         CheckEmscriptenGLES
  3459 
  3460          # Set up files for the power library
  3461         if test x$enable_power = xyes; then
  3462             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3463             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3464             have_power=yes
  3465         fi
  3466         
  3467         # Set up files for the power library
  3468         if test x$enable_joystick = xyes; then
  3469             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3470             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3471             have_joystick=yes
  3472         fi
  3473 
  3474         # Set up files for the filesystem library
  3475         if test x$enable_filesystem = xyes; then
  3476             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3477             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3478             have_filesystem=yes
  3479         fi
  3480         # Set up files for the timer library
  3481         if test x$enable_timers = xyes; then
  3482             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3483             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3484             have_timers=yes
  3485         fi
  3486         ;;
  3487     *)
  3488         AC_MSG_ERROR([
  3489 *** Unsupported host:  Please add to configure.in
  3490         ])
  3491         ;;
  3492 esac
  3493 
  3494 # Verify that we have all the platform specific files we need
  3495 
  3496 if test x$have_joystick != xyes; then
  3497     if test x$enable_joystick = xyes; then
  3498         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3499     fi
  3500     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3501 fi
  3502 if test x$have_haptic != xyes; then
  3503     if test x$enable_haptic = xyes; then
  3504         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3505     fi
  3506     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3507 fi
  3508 if test x$have_threads != xyes; then
  3509     if test x$enable_threads = xyes; then
  3510         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3511     fi
  3512     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3513 fi
  3514 if test x$have_timers != xyes; then
  3515     if test x$enable_timers = xyes; then
  3516         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3517     fi
  3518     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3519 fi
  3520 if test x$have_filesystem != xyes; then
  3521     if test x$enable_filesystem = xyes; then
  3522         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3523     fi
  3524     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3525 fi
  3526 if test x$have_loadso != xyes; then
  3527     if test x$enable_loadso = xyes; then
  3528         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3529     fi
  3530     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3531 fi
  3532 if test x$SDLMAIN_SOURCES = x; then
  3533     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3534 fi
  3535 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3536 
  3537 if test x$video_wayland = xyes; then
  3538     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3539     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3540     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3541         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3542     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3543         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3544     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3545     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3546 
  3547     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3548 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3549 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3550 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3551 
  3552     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3553 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3554 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3555 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3556 
  3557     WAYLAND_CORE_PROTOCOL_OBJECT="
  3558 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3559 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3560 
  3561     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3562         do echo ; echo \$p | sed\
  3563         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3564 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3565 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3566 
  3567     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3568         do echo ; echo \$p | sed\
  3569         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3570 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3571 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3572 
  3573     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3574         do echo ; echo \$p | sed\
  3575         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3576 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3577 
  3578     WAYLAND_PROTOCOLS_DEPENDS="
  3579 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3580 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3581 $WAYLAND_CORE_PROTOCOL_OBJECT
  3582 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3583 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3584 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3585 "
  3586 fi
  3587 
  3588 OBJECTS=`echo $SOURCES`
  3589 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3590 for EXT in asm cc m c S; do
  3591     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3592     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3593 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3594 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3595 done
  3596 
  3597 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3598 
  3599 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3600 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3601 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3602 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3603 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3604 	\\$(WINDRES) \\$< \\$@,g"`
  3605 
  3606 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3607 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3608 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3609 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3610 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3611 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3612 
  3613 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3614 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3615 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3616 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3617 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3618 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3619 
  3620 # Set runtime shared library paths as needed
  3621 
  3622 if test "x$enable_rpath" = "xyes"; then
  3623   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3624     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3625 
  3626     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  3627     have_enable_new_dtags=no
  3628     save_LDFLAGS="$LDFLAGS"
  3629     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  3630     AC_TRY_LINK([
  3631     ],[
  3632     ],[
  3633     have_enable_new_dtags=yes
  3634     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  3635     ])
  3636     LDFLAGS="$save_LDFLAGS"
  3637     AC_MSG_RESULT($have_enable_new_dtags)
  3638   fi
  3639   if test $ARCH = solaris; then
  3640     SDL_RLD_FLAGS="-R\${libdir}"
  3641   fi
  3642 else
  3643   SDL_RLD_FLAGS=""
  3644 fi
  3645 
  3646 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3647 
  3648 dnl Expand the cflags and libraries needed by apps using SDL
  3649 AC_SUBST(SDL_CFLAGS)
  3650 AC_SUBST(SDL_LIBS)
  3651 AC_SUBST(SDL_STATIC_LIBS)
  3652 AC_SUBST(SDL_RLD_FLAGS)
  3653 if test x$enable_shared = xyes; then
  3654     ENABLE_SHARED_TRUE=
  3655     ENABLE_SHARED_FALSE="#"
  3656 else
  3657     ENABLE_SHARED_TRUE="#"
  3658     ENABLE_SHARED_FALSE=
  3659 fi
  3660 if test x$enable_static = xyes; then
  3661     ENABLE_STATIC_TRUE=
  3662     ENABLE_STATIC_FALSE="#"
  3663 else
  3664     ENABLE_STATIC_TRUE="#"
  3665     ENABLE_STATIC_FALSE=
  3666 fi
  3667 AC_SUBST(ENABLE_SHARED_TRUE)
  3668 AC_SUBST(ENABLE_SHARED_FALSE)
  3669 AC_SUBST(ENABLE_STATIC_TRUE)
  3670 AC_SUBST(ENABLE_STATIC_FALSE)
  3671 
  3672 dnl Expand the sources and objects needed to build the library
  3673 AC_SUBST(ac_aux_dir)
  3674 AC_SUBST(INCLUDE)
  3675 AC_SUBST(OBJECTS)
  3676 AC_SUBST(GEN_HEADERS)
  3677 AC_SUBST(GEN_OBJECTS)
  3678 AC_SUBST(VERSION_OBJECTS)
  3679 AC_SUBST(SDLMAIN_OBJECTS)
  3680 AC_SUBST(SDLTEST_OBJECTS)
  3681 AC_SUBST(BUILD_CFLAGS)
  3682 AC_SUBST(EXTRA_CFLAGS)
  3683 AC_SUBST(BUILD_LDFLAGS)
  3684 AC_SUBST(EXTRA_LDFLAGS)
  3685 AC_SUBST(WINDRES)
  3686 AC_SUBST(WAYLAND_SCANNER)
  3687 
  3688 cat >Makefile.rules <<__EOF__
  3689 
  3690 # Build rules for objects
  3691 -include \$(OBJECTS:.lo=.d)
  3692 
  3693 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3694 $srcdir/src/SDL.c: update-revision
  3695 $DEPENDS
  3696 $VERSION_DEPENDS
  3697 $SDLMAIN_DEPENDS
  3698 $SDLTEST_DEPENDS
  3699 $WAYLAND_PROTOCOLS_DEPENDS
  3700 __EOF__
  3701 
  3702 AC_CONFIG_FILES([
  3703     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  3704 ])
  3705 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3706 
  3707 SUMMARY="SDL2 Configure Summary:\n"
  3708 if test x$enable_shared = xyes; then
  3709     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3710 fi
  3711 if test x$enable_static = xyes; then
  3712     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3713 fi
  3714 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3715 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3716 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3717 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3718 if test x$have_x = xyes; then
  3719     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3720 fi
  3721 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3722 if test x$have_libudev_h_hdr = xyes; then
  3723     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3724 else
  3725     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3726 fi
  3727 if test x$have_dbus_dbus_h_hdr = xyes; then
  3728     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3729 else
  3730     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3731 fi
  3732 if test x$enable_ime = xyes; then
  3733     SUMMARY="${SUMMARY}Using ime       : YES\n"
  3734 else
  3735     SUMMARY="${SUMMARY}Using ime       : NO\n"
  3736 fi
  3737 if test x$have_ibus_ibus_h_hdr = xyes; then
  3738     SUMMARY="${SUMMARY}Using ibus      : YES\n"
  3739 else
  3740     SUMMARY="${SUMMARY}Using ibus      : NO\n"
  3741 fi
  3742 if test x$have_fcitx_frontend_h_hdr = xyes; then
  3743     SUMMARY="${SUMMARY}Using fcitx     : YES\n"
  3744 else
  3745     SUMMARY="${SUMMARY}Using fcitx     : NO\n"
  3746 fi
  3747 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3748 
  3749 AC_OUTPUT