configure.in
author Ryan C. Gordon <icculus@icculus.org>
Tue, 06 May 2014 00:13:07 -0400
changeset 8751 e8c61640668d
parent 8743 4f1fc737b017
child 8759 18eb59aa5913
permissions -rw-r--r--
Fix build on Windows targets without dxgi.h, like MingW32.
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=3
    24 SDL_INTERFACE_AGE=1
    25 SDL_BINARY_AGE=3
    26 SDL_VERSION=$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 $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(altivec,
   633 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   634                   , enable_altivec=yes)
   635     if test x$enable_altivec = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_altivec=no
   638         have_altivec_h_hdr=no
   639         altivec_CFLAGS="-maltivec"
   640         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   641 
   642         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   643         AC_TRY_COMPILE([
   644         #include <altivec.h>
   645         vector unsigned int vzero() {
   646             return vec_splat_u32(0);
   647         }
   648         ],[
   649         ],[
   650         have_gcc_altivec=yes
   651         have_altivec_h_hdr=yes
   652         ])
   653         AC_MSG_RESULT($have_gcc_altivec)
   654 
   655         if test x$have_gcc_altivec = xno; then
   656             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   657             AC_TRY_COMPILE([
   658             vector unsigned int vzero() {
   659                 return vec_splat_u32(0);
   660             }
   661             ],[
   662             ],[
   663             have_gcc_altivec=yes
   664             ])
   665             AC_MSG_RESULT($have_gcc_altivec)
   666         fi
   667 
   668         if test x$have_gcc_altivec = xno; then
   669             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   670             altivec_CFLAGS="-faltivec"
   671             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   672             AC_TRY_COMPILE([
   673             #include <altivec.h>
   674             vector unsigned int vzero() {
   675                 return vec_splat_u32(0);
   676             }
   677             ],[
   678             ],[
   679             have_gcc_altivec=yes
   680             have_altivec_h_hdr=yes
   681             ])
   682             AC_MSG_RESULT($have_gcc_altivec)
   683         fi
   684 
   685         if test x$have_gcc_altivec = xno; then
   686             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   687             AC_TRY_COMPILE([
   688             vector unsigned int vzero() {
   689                 return vec_splat_u32(0);
   690             }
   691             ],[
   692             ],[
   693             have_gcc_altivec=yes
   694             ])
   695             AC_MSG_RESULT($have_gcc_altivec)
   696         fi
   697         CFLAGS="$save_CFLAGS"
   698 
   699         if test x$have_gcc_altivec = xyes; then
   700             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   701             if test x$have_altivec_h_hdr = xyes; then
   702               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   703             fi
   704             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   705             SUMMARY_math="${SUMMARY_math} altivec"
   706         fi
   707     fi
   708 fi
   709 
   710 dnl See if the OSS audio interface is supported
   711 CheckOSS()
   712 {
   713     AC_ARG_ENABLE(oss,
   714 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   715                   , enable_oss=maybe)
   716 
   717     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   718     #  use sndio instead. So on there, we default to disabled. You can force
   719     #  it on if you really want, though.
   720     if test x$enable_oss = xmaybe; then
   721         enable_oss=yes
   722         case "$host" in
   723             *-*-openbsd*)
   724                 enable_oss=no;;
   725         esac
   726     fi
   727 
   728     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   729         AC_MSG_CHECKING(for OSS audio support)
   730         have_oss=no
   731         if test x$have_oss != xyes; then
   732             AC_TRY_COMPILE([
   733               #include <sys/soundcard.h>
   734             ],[
   735               int arg = SNDCTL_DSP_SETFRAGMENT;
   736             ],[
   737             have_oss=yes
   738             ])
   739         fi
   740         if test x$have_oss != xyes; then
   741             AC_TRY_COMPILE([
   742               #include <soundcard.h>
   743             ],[
   744               int arg = SNDCTL_DSP_SETFRAGMENT;
   745             ],[
   746             have_oss=yes
   747             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   748             ])
   749         fi
   750         AC_MSG_RESULT($have_oss)
   751         if test x$have_oss = xyes; then
   752             SUMMARY_audio="${SUMMARY_audio} oss"
   753             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   754             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   755             have_audio=yes
   756 
   757             # We may need to link with ossaudio emulation library
   758             case "$host" in
   759                 *-*-openbsd*|*-*-netbsd*)
   760                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   761             esac
   762         fi
   763     fi
   764 }
   765 
   766 dnl See if the ALSA audio interface is supported
   767 CheckALSA()
   768 {
   769     AC_ARG_ENABLE(alsa,
   770 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   771                   , enable_alsa=yes)
   772     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   773         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$alsa_save_CFLAGS"
   776         LDFLAGS="$alsa_save_LDFLAGS"
   777         LIBS="$alsa_save_LIBS"
   778         if test x$have_alsa = xyes; then
   779             AC_ARG_ENABLE(alsa-shared,
   780 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   781                           , enable_alsa_shared=yes)
   782             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   783 
   784             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   785             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   786             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   787             if test x$have_loadso != xyes && \
   788                test x$enable_alsa_shared = xyes; then
   789                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   790             fi
   791             if test x$have_loadso = xyes && \
   792                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   793                 echo "-- dynamic libasound -> $alsa_lib"
   794                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   795                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   796             else
   797                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   798                 SUMMARY_audio="${SUMMARY_audio} alsa"
   799             fi
   800             have_audio=yes
   801         fi
   802     fi
   803 }
   804 
   805 dnl Find the ESD includes and libraries
   806 CheckESD()
   807 {
   808     AC_ARG_ENABLE(esd,
   809 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   810                   , enable_esd=yes)
   811     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   812         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   813         if test x$have_esd = xyes; then
   814             AC_ARG_ENABLE(esd-shared,
   815 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   816                           , enable_esd_shared=yes)
   817             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   818 
   819             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   820             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   821             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   822             if test x$have_loadso != xyes && \
   823                test x$enable_esd_shared = xyes; then
   824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   825             fi
   826             if test x$have_loadso = xyes && \
   827                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   828                 echo "-- dynamic libesd -> $esd_lib"
   829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   830                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   831             else
   832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   833                 SUMMARY_audio="${SUMMARY_audio} esd"
   834             fi
   835             have_audio=yes
   836         fi
   837     fi
   838 }
   839 
   840 dnl Find PulseAudio
   841 CheckPulseAudio()
   842 {
   843     AC_ARG_ENABLE(pulseaudio,
   844 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   845                   , enable_pulseaudio=yes)
   846     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   847         audio_pulseaudio=no
   848 
   849         PULSEAUDIO_REQUIRED_VERSION=0.9
   850 
   851         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   852         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   853         if test x$PKG_CONFIG != xno; then
   854         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   855                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   856                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   857                 audio_pulseaudio=yes
   858             fi
   859         fi
   860         AC_MSG_RESULT($audio_pulseaudio)
   861 
   862         if test x$audio_pulseaudio = xyes; then
   863             AC_ARG_ENABLE(pulseaudio-shared,
   864 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   865                           , enable_pulseaudio_shared=yes)
   866             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   867 
   868             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   869             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   870             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   871             if test x$have_loadso != xyes && \
   872                test x$enable_pulseaudio_shared = xyes; then
   873                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   874             fi
   875             if test x$have_loadso = xyes && \
   876                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   877                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   878                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   879                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   880 
   881                 case "$host" in
   882                     # On Solaris, pulseaudio must be linked deferred explicitly
   883                     # to prevent undefined symbol failures.
   884                     *-*-solaris*)
   885                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   886                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   887                 esac
   888             else
   889                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   890                 SUMMARY_audio="${SUMMARY_audio} pulse"
   891             fi
   892             have_audio=yes
   893         fi
   894     fi
   895 }
   896 
   897 CheckARTSC()
   898 {
   899     AC_ARG_ENABLE(arts,
   900 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   901                   , enable_arts=yes)
   902     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   903         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   904         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   905             : # arts isn't installed
   906         else
   907             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   908             ARTS_LIBS=`$ARTSCONFIG --libs`
   909             AC_MSG_CHECKING(for aRts development environment)
   910             audio_arts=no
   911             save_CFLAGS="$CFLAGS"
   912             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   913             AC_TRY_COMPILE([
   914              #include <artsc.h>
   915             ],[
   916              arts_stream_t stream;
   917             ],[
   918             audio_arts=yes
   919             ])
   920             CFLAGS="$save_CFLAGS"
   921             AC_MSG_RESULT($audio_arts)
   922             if test x$audio_arts = xyes; then
   923                 AC_ARG_ENABLE(arts-shared,
   924 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   925                               , enable_arts_shared=yes)
   926                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   927 
   928                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   929                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   930                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   931                 if test x$have_loadso != xyes && \
   932                    test x$enable_arts_shared = xyes; then
   933                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   934                 fi
   935                 if test x$have_loadso = xyes && \
   936                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   937                     echo "-- dynamic libartsc -> $arts_lib"
   938                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   939                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
   940                 else
   941                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   942                     SUMMARY_audio="${SUMMARY_audio} arts"
   943                 fi
   944                 have_audio=yes
   945             fi
   946         fi
   947     fi
   948 }
   949 
   950 dnl See if the NAS audio interface is supported
   951 CheckNAS()
   952 {
   953     AC_ARG_ENABLE(nas,
   954 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   955                   , enable_nas=yes)
   956     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   957         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   958         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   959 
   960         AC_MSG_CHECKING(for NAS audio support)
   961         have_nas=no
   962 
   963         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   964             have_nas=yes
   965             NAS_LIBS="-laudio"
   966 
   967         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   968             have_nas=yes
   969             NAS_CFLAGS="-I/usr/X11R6/include/"
   970             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   971 
   972         fi
   973 
   974         AC_MSG_RESULT($have_nas)
   975 
   976         if test x$have_nas = xyes; then
   977             AC_ARG_ENABLE(nas-shared,
   978 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   979                           , enable_nas_shared=yes)
   980             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   981 
   982             if test x$have_loadso != xyes && \
   983                test x$enable_nas_shared = xyes; then
   984                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   985             fi
   986             if test x$have_loadso = xyes && \
   987                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   988                 echo "-- dynamic libaudio -> $nas_lib"
   989                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   990                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
   991             else
   992                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   993                 SUMMARY_audio="${SUMMARY_audio} nas"
   994             fi
   995 
   996             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   997             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   998             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   999             have_audio=yes
  1000         fi
  1001     fi
  1002 }
  1003 
  1004 dnl See if the sndio audio interface is supported
  1005 CheckSNDIO()
  1006 {
  1007     AC_ARG_ENABLE(sndio,
  1008 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1009                   , enable_sndio=yes)
  1010     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1011         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1012         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1013 
  1014         AC_MSG_CHECKING(for sndio audio support)
  1015         have_sndio=no
  1016 
  1017         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1018             have_sndio=yes
  1019             SNDIO_LIBS="-lsndio"
  1020         fi
  1021 
  1022         AC_MSG_RESULT($have_sndio)
  1023 
  1024         if test x$have_sndio = xyes; then
  1025             AC_ARG_ENABLE(sndio-shared,
  1026 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1027                           , enable_sndio_shared=yes)
  1028             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1029 
  1030             if test x$have_loadso != xyes && \
  1031                test x$enable_sndio_shared = xyes; then
  1032                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1033             fi
  1034             if test x$have_loadso = xyes && \
  1035                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1036                 echo "-- dynamic libsndio -> $sndio_lib"
  1037                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1038                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1039             else
  1040                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1041                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1042             fi
  1043 
  1044             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1045             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1046             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1047             have_audio=yes
  1048         fi
  1049     fi
  1050 }
  1051 
  1052 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1053 CheckDiskAudio()
  1054 {
  1055     AC_ARG_ENABLE(diskaudio,
  1056 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1057                   , enable_diskaudio=yes)
  1058     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1059         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1060         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1061         SUMMARY_audio="${SUMMARY_audio} disk"
  1062     fi
  1063 }
  1064 
  1065 dnl rcg03142006 See if the user wants the dummy audio driver...
  1066 CheckDummyAudio()
  1067 {
  1068     AC_ARG_ENABLE(dummyaudio,
  1069 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1070                   , enable_dummyaudio=yes)
  1071     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1072         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1073         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1074         SUMMARY_audio="${SUMMARY_audio} dummy"
  1075     fi
  1076 }
  1077 
  1078 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1079 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1080 CheckVisibilityHidden()
  1081 {
  1082     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1083     have_gcc_fvisibility=no
  1084 
  1085     visibility_CFLAGS="-fvisibility=hidden"
  1086     save_CFLAGS="$CFLAGS"
  1087     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1088     AC_TRY_COMPILE([
  1089     #if !defined(__GNUC__) || __GNUC__ < 4
  1090     #error SDL only uses visibility attributes in GCC 4 or newer
  1091     #endif
  1092     ],[
  1093     ],[
  1094     have_gcc_fvisibility=yes
  1095     ])
  1096     AC_MSG_RESULT($have_gcc_fvisibility)
  1097     CFLAGS="$save_CFLAGS"
  1098 
  1099     if test x$have_gcc_fvisibility = xyes; then
  1100         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1101     fi
  1102 }
  1103 
  1104 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1105 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1106 CheckStackBoundary()
  1107 {
  1108     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1109     have_gcc_preferred_stack_boundary=no
  1110 
  1111     save_CFLAGS="$CFLAGS"
  1112     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1113     AC_TRY_COMPILE([
  1114     int x = 0;
  1115     ],[
  1116     ],[
  1117     have_gcc_preferred_stack_boundary=yes
  1118     ])
  1119     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1120     CFLAGS="$save_CFLAGS"
  1121 
  1122     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1123         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 dnl See if GCC's -Wall is supported.
  1128 CheckWarnAll()
  1129 {
  1130     AC_MSG_CHECKING(for GCC -Wall option)
  1131     have_gcc_Wall=no
  1132 
  1133     save_CFLAGS="$CFLAGS"
  1134     CFLAGS="$save_CFLAGS -Wall"
  1135     AC_TRY_COMPILE([
  1136     int x = 0;
  1137     ],[
  1138     ],[
  1139     have_gcc_Wall=yes
  1140     ])
  1141     AC_MSG_RESULT($have_gcc_Wall)
  1142     CFLAGS="$save_CFLAGS"
  1143 
  1144     if test x$have_gcc_Wall = xyes; then
  1145         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1146 
  1147         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1148         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1149         need_gcc_Wno_multichar=no
  1150         case "$host" in
  1151             *-*-haiku*)
  1152                 need_gcc_Wno_multichar=yes
  1153                 ;;
  1154         esac
  1155         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1156         if test x$need_gcc_Wno_multichar = xyes; then
  1157             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1158         fi
  1159     fi
  1160 }
  1161 
  1162 dnl Check for Wayland
  1163 CheckWayland()
  1164 {
  1165     AC_ARG_ENABLE(video-wayland,
  1166 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1167                   ,enable_video_wayland=yes)
  1168 
  1169     AC_ARG_ENABLE(video-wayland-qt-touch,
  1170 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1171                   ,enable_video_wayland_qt_touch=yes)
  1172 
  1173     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1174         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1175         AC_MSG_CHECKING(for Wayland support)
  1176         video_wayland=no
  1177         if test x$PKG_CONFIG != xno; then
  1178             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1179                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1180                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1181                 video_wayland=yes
  1182             fi
  1183         fi
  1184         AC_MSG_RESULT($video_wayland)
  1185 
  1186         if test x$video_wayland = xyes; then
  1187             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1188             if test x$enable_video_wayland_qt_touch = xyes; then
  1189                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1190             fi
  1191             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1192             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1193             AC_ARG_ENABLE(wayland-shared,
  1194 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1195                           , enable_wayland_shared=maybe)
  1196 
  1197             dnl FIXME: Do BSD and OS X need special cases?
  1198             case "$host" in
  1199                 *)
  1200                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1201                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1202                     if test x$wayland_egl_lib = x; then
  1203                         dnl This works in Ubuntu 13.10, maybe others
  1204                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1205                     fi
  1206                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1207                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1208                     ;;
  1209             esac
  1210 
  1211             if test x$enable_wayland_shared = xmaybe; then
  1212                 enable_wayland_shared=yes
  1213             fi
  1214             if test x$have_loadso != xyes && \
  1215                test x$enable_wayland_shared = xyes; then
  1216                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1217                 enable_wayland_shared=no
  1218             fi
  1219             if test x$have_loadso = xyes && \
  1220                test x$enable_wayland_shared = xyes && \
  1221                test x$wayland_client_lib != x && \
  1222                test x$wayland_egl_lib != x && \
  1223                test x$wayland_cursor_lib != x && \
  1224                test x$xkbcommon_lib != x; then
  1225                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1226                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1227                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1228                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1229                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1230                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1231                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1232                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1233                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1234             else
  1235                 enable_wayland_shared=no
  1236                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1237                 SUMMARY_video="${SUMMARY_video} wayland"
  1238             fi
  1239             have_video=yes
  1240         fi
  1241     fi
  1242 }
  1243 
  1244 dnl Check for Mir
  1245 CheckMir()
  1246 {
  1247     AC_ARG_ENABLE(video-mir,
  1248 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1249                   ,enable_video_mir=yes)
  1250 
  1251     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1252         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1253         AC_MSG_CHECKING(for Mir support)
  1254         video_mir=no
  1255         if test x$PKG_CONFIG != xno; then
  1256             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1257                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1258                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1259                 video_mir=yes
  1260             fi
  1261         fi
  1262         AC_MSG_RESULT($video_mir)
  1263 
  1264         if test x$video_mir = xyes; then
  1265             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1266             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1267             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1268             AC_ARG_ENABLE(mir-shared,
  1269 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1270                           , enable_mir_shared=maybe)
  1271 
  1272             dnl FIXME: Do BSD and OS X need special cases?
  1273             case "$host" in
  1274                 *)
  1275                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1276                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1277                     ;;
  1278             esac
  1279 
  1280             if test x$enable_mir_shared = xmaybe; then
  1281                 enable_mir_shared=yes
  1282             fi
  1283             if test x$have_loadso != xyes && \
  1284                test x$enable_mir_shared = xyes; then
  1285                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1286                 enable_mir_shared=no
  1287             fi
  1288             if test x$have_loadso = xyes && \
  1289                test x$enable_mir_shared = xyes && \
  1290                test x$mirclient_lib != x && \
  1291                test x$xkbcommon_lib != x; then
  1292                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1293                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1294                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1295                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1296                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1297             else
  1298                 enable_mir_shared=no
  1299                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1300                 SUMMARY_video="${SUMMARY_video} mir"
  1301             fi
  1302             have_video=yes
  1303         fi
  1304     fi
  1305 }
  1306 
  1307 
  1308 dnl Find the X11 include and library directories
  1309 CheckX11()
  1310 {
  1311 
  1312 
  1313     AC_ARG_ENABLE(video-x11,
  1314 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1315                   , enable_video_x11=yes)
  1316     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1317         case "$host" in
  1318             *-*-darwin*)
  1319                 # This isn't necessary for X11, but fixes GLX detection
  1320                 if test "x$x_includes" = xNONE && \
  1321                    test "x$x_libraries" = xNONE && \
  1322                    test -d /usr/X11R6/include && \
  1323                    test -d /usr/X11R6/lib; then
  1324                     x_includes="/usr/X11R6/include"
  1325                     x_libraries="/usr/X11R6/lib"
  1326                 fi
  1327                 ;;
  1328         esac
  1329         AC_PATH_X
  1330         AC_PATH_XTRA
  1331         if test x$have_x = xyes; then
  1332             AC_ARG_ENABLE(x11-shared,
  1333 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1334                           , enable_x11_shared=maybe)
  1335 
  1336             case "$host" in
  1337                 *-*-darwin*)
  1338                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1339                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1340                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1341                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1342                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1343                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1344                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1345                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1346                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1347                     ;;
  1348                 *-*-openbsd*)
  1349                     x11_lib='libX11.so'
  1350                     x11ext_lib='libXext.so'
  1351                     xcursor_lib='libXcursor.so'
  1352                     xinerama_lib='libXinerama.so'
  1353                     xinput_lib='libXi.so'
  1354                     xrandr_lib='libXrandr.so'
  1355                     xrender_lib='libXrender.so'
  1356                     xss_lib='libXss.so'
  1357                     xvidmode_lib='libXxf86vm.so'
  1358                     ;;
  1359                 *)
  1360                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1361                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1362                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1363                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1364                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1365                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1366                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1367                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1368                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1369                     ;;
  1370             esac
  1371 
  1372             if test x$ac_cv_func_shmat != xyes; then
  1373                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1374             fi
  1375             CFLAGS="$CFLAGS $X_CFLAGS"
  1376             LDFLAGS="$LDFLAGS $X_LIBS"
  1377 
  1378             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1379                             have_xext_h_hdr=yes,
  1380                             have_xext_h_hdr=no,
  1381                             [#include <X11/Xlib.h>
  1382                              #include <X11/Xproto.h>
  1383                             ])
  1384             if test x$have_xext_h_hdr != xyes; then
  1385                AC_MSG_ERROR([
  1386 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1387                ])
  1388             fi
  1389 
  1390             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1391             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1392             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1393 
  1394             # Needed so SDL applications can include SDL_syswm.h
  1395             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1396 
  1397             if test x$enable_x11_shared = xmaybe; then
  1398                 enable_x11_shared=yes
  1399             fi
  1400             if test x$have_loadso != xyes && \
  1401                test x$enable_x11_shared = xyes; then
  1402                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1403                 enable_x11_shared=no
  1404             fi
  1405             if test x$have_loadso = xyes && \
  1406                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1407                 echo "-- dynamic libX11 -> $x11_lib"
  1408                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1409                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1410                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1411                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1412             else
  1413                 enable_x11_shared=no
  1414                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1415                 SUMMARY_video="${SUMMARY_video} x11"
  1416             fi
  1417             have_video=yes
  1418 
  1419             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1420             have_const_param_XextAddDisplay=no
  1421             AC_TRY_COMPILE([
  1422               #include <X11/Xlib.h>
  1423               #include <X11/Xproto.h>
  1424               #include <X11/extensions/Xext.h>
  1425               #include <X11/extensions/extutil.h>
  1426               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1427             ],[
  1428             ],[
  1429             have_const_param_XextAddDisplay=yes
  1430             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1431             ])
  1432             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1433 
  1434             AC_MSG_CHECKING(for const parameter to _XData32)
  1435 	    have_const_param_xdata32=no
  1436 	    AC_TRY_COMPILE([
  1437 	      #include <X11/Xlibint.h>
  1438 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1439 	    ],[
  1440 	    ],[
  1441 	    have_const_param_xdata32=yes
  1442 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1443 	    ])
  1444 	    AC_MSG_RESULT($have_const_param_xdata32)
  1445 
  1446             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1447             AC_MSG_CHECKING([for XGenericEvent])
  1448             have_XGenericEvent=no
  1449             AC_TRY_COMPILE([
  1450               	#include <X11/Xlib.h>
  1451             ],[
  1452 Display *display;
  1453 XEvent event;
  1454 XGenericEventCookie *cookie = &event.xcookie;
  1455 XNextEvent(display, &event);
  1456 XGetEventData(display, cookie);
  1457 XFreeEventData(display, cookie);
  1458             ],[
  1459                 have_XGenericEvent=yes
  1460                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1461             ])
  1462             AC_MSG_RESULT($have_XGenericEvent)
  1463 
  1464             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1465 
  1466             AC_ARG_ENABLE(video-x11-xcursor,
  1467 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1468                             , enable_video_x11_xcursor=yes)
  1469             if test x$enable_video_x11_xcursor = xyes; then
  1470                 definitely_enable_video_x11_xcursor=no
  1471                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1472                                 have_xcursor_h_hdr=yes,
  1473                                 have_xcursor_h_hdr=no,
  1474                                 [#include <X11/Xlib.h>
  1475                                 ])
  1476                 if test x$have_xcursor_h_hdr = xyes; then
  1477                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1478                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1479                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1480                         definitely_enable_video_x11_xcursor=yes
  1481                     else
  1482                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1483                         if test x$have_xcursor_lib = xyes ; then
  1484                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1485                             definitely_enable_video_x11_xcursor=yes
  1486                         fi
  1487                     fi
  1488                 fi
  1489             fi
  1490             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1491                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1492                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1493             fi
  1494             AC_ARG_ENABLE(video-x11-xinerama,
  1495 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1496                             , enable_video_x11_xinerama=yes)
  1497             if test x$enable_video_x11_xinerama = xyes; then
  1498                 definitely_enable_video_x11_xinerama=no
  1499                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1500                                 have_xinerama_h_hdr=yes,
  1501                                 have_xinerama_h_hdr=no,
  1502                                 [#include <X11/Xlib.h>
  1503                                 ])
  1504                 if test x$have_xinerama_h_hdr = xyes; then
  1505                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1506                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1507                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1508                         definitely_enable_video_x11_xinerama=yes
  1509                     else
  1510                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1511                         if test x$have_xinerama_lib = xyes ; then
  1512                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1513                             definitely_enable_video_x11_xinerama=yes
  1514                         fi
  1515                     fi
  1516                 fi
  1517             fi
  1518             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1519                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1520                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1521             fi
  1522             AC_ARG_ENABLE(video-x11-xinput,
  1523 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1524                             , enable_video_x11_xinput=yes)
  1525             if test x$enable_video_x11_xinput = xyes; then
  1526                 definitely_enable_video_x11_xinput=no
  1527                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1528                                 have_xinput_h_hdr=yes,
  1529                                 have_xinput_h_hdr=no,
  1530                                 [#include <X11/Xlib.h>
  1531                                 ])
  1532                 if test x$have_xinput_h_hdr = xyes; then
  1533                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1534                         echo "-- dynamic libXi -> $xinput_lib"
  1535                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1536                         definitely_enable_video_x11_xinput=yes
  1537                     else
  1538                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1539                         if test x$have_xinput_lib = xyes ; then
  1540                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1541                             definitely_enable_video_x11_xinput=yes
  1542                         fi
  1543                     fi
  1544                 fi
  1545             fi
  1546             if test x$definitely_enable_video_x11_xinput = xyes; then
  1547                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1548                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1549                 AC_MSG_CHECKING(for xinput2 multitouch)
  1550             	have_xinput2_multitouch=no
  1551             	AC_TRY_COMPILE([
  1552               		#include <X11/Xlib.h>
  1553              		#include <X11/Xproto.h>
  1554 			#include <X11/extensions/XInput2.h>
  1555             	],[
  1556 int event_type = XI_TouchBegin;
  1557 XITouchClassInfo *t;
  1558             	],[
  1559             	have_xinput2_multitouch=yes
  1560             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1561                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1562             	])
  1563             	AC_MSG_RESULT($have_xinput2_multitouch)
  1564             fi
  1565             AC_ARG_ENABLE(video-x11-xrandr,
  1566 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1567                             , enable_video_x11_xrandr=yes)
  1568             if test x$enable_video_x11_xrandr = xyes; then
  1569                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1570                 definitely_enable_video_x11_xrandr=no
  1571                 have_xrandr_h_hdr=no
  1572                 AC_TRY_COMPILE([
  1573                 #include <X11/Xlib.h>
  1574                 #include <X11/extensions/Xrandr.h>
  1575                 ],[
  1576                 XRRScreenResources *res = NULL;
  1577                 ],[
  1578                 have_xrandr_h_hdr=yes
  1579                 ])
  1580                 if test x$have_xrandr_h_hdr = xyes; then
  1581                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1582                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1583                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1584                         definitely_enable_video_x11_xrandr=yes
  1585                     else
  1586                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1587                         if test x$have_xrandr_lib = xyes ; then
  1588                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1589                             definitely_enable_video_x11_xrandr=yes
  1590                         fi
  1591                     fi
  1592                 fi
  1593             fi
  1594             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1595                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1596                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1597             fi
  1598             AC_ARG_ENABLE(video-x11-scrnsaver,
  1599 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1600                             , enable_video_x11_scrnsaver=yes)
  1601             if test x$enable_video_x11_scrnsaver = xyes; then
  1602                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1603                                 have_scrnsaver_h_hdr=yes,
  1604                                 have_scrnsaver_h_hdr=no,
  1605                                 [#include <X11/Xlib.h>
  1606                                 ])
  1607                 if test x$have_scrnsaver_h_hdr = xyes; then
  1608                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1609                         echo "-- dynamic libXss -> $xss_lib"
  1610                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1611                         definitely_enable_video_x11_scrnsaver=yes
  1612                     else
  1613                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1614                         if test x$have_xss_lib = xyes ; then
  1615                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1616                             definitely_enable_video_x11_scrnsaver=yes
  1617                         fi
  1618                     fi
  1619                 fi
  1620             fi
  1621             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1622                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1623                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1624             fi
  1625             AC_ARG_ENABLE(video-x11-xshape,
  1626 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1627                             , enable_video_x11_xshape=yes)
  1628             if test x$enable_video_x11_xshape = xyes; then
  1629                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1630                                 have_shape_h_hdr=yes,
  1631                                 have_shape_h_hdr=no,
  1632                                 [#include <X11/Xlib.h>
  1633                                 ])
  1634                 if test x$have_shape_h_hdr = xyes; then
  1635                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1636                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1637                 fi
  1638             fi
  1639             AC_ARG_ENABLE(video-x11-vm,
  1640 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1641                             , enable_video_x11_vm=yes)
  1642             if test x$enable_video_x11_vm = xyes; then
  1643                 definitely_enable_video_x11_vm=no
  1644                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1645                                 have_vm_h_hdr=yes,
  1646                                 have_vm_h_hdr=no,
  1647                                 [#include <X11/Xlib.h>
  1648                                 ])
  1649                 if test x$have_vm_h_hdr = xyes; then
  1650                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1651                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1652                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1653                         definitely_enable_video_x11_vm=yes
  1654                     else
  1655                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1656                         if test x$have_vm_lib = xyes ; then
  1657                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1658                             definitely_enable_video_x11_vm=yes
  1659                         fi
  1660                     fi
  1661                 fi
  1662             fi
  1663             if test x$definitely_enable_video_x11_vm = xyes; then
  1664                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1665                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1666             fi
  1667         fi
  1668     fi
  1669 }
  1670 
  1671 dnl Set up the Haiku video driver if enabled
  1672 CheckHaikuVideo()
  1673 {
  1674     if test x$enable_video = xyes; then
  1675         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1676         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1677         have_video=yes
  1678         SUMMARY_video="${SUMMARY_video} haiku"
  1679     fi
  1680 }
  1681 
  1682 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1683 CheckCOCOA()
  1684 {
  1685     AC_ARG_ENABLE(video-cocoa,
  1686 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1687                   , enable_video_cocoa=yes)
  1688     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1689         save_CFLAGS="$CFLAGS"
  1690         dnl work around that we don't have Objective-C support in autoconf
  1691         CFLAGS="$CFLAGS -x objective-c"
  1692         AC_MSG_CHECKING(for Cocoa framework)
  1693         have_cocoa=no
  1694         AC_TRY_COMPILE([
  1695           #import <Cocoa/Cocoa.h>
  1696         ],[
  1697         ],[
  1698         have_cocoa=yes
  1699         ])
  1700         AC_MSG_RESULT($have_cocoa)
  1701         CFLAGS="$save_CFLAGS"
  1702         if test x$have_cocoa = xyes; then
  1703             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1704             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1705             SUMMARY_video="${SUMMARY_video} cocoa"
  1706             have_video=yes
  1707         fi
  1708     fi
  1709 }
  1710 
  1711 dnl Find DirectFB
  1712 CheckDirectFB()
  1713 {
  1714     AC_ARG_ENABLE(video-directfb,
  1715 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1716                   , enable_video_directfb=no)
  1717     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1718         video_directfb=no
  1719 
  1720         DIRECTFB_REQUIRED_VERSION=1.0.0
  1721         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1722         if test x$DIRECTFBCONFIG = xno; then
  1723             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1724             if test x$PKG_CONFIG != xno; then
  1725                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1726                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1727                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1728                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1729                     video_directfb=yes
  1730                 fi
  1731             fi
  1732         else
  1733             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1734             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1735             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1736             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1737             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1738                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1739                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1740                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1741                 video_directfb=yes
  1742             fi
  1743         fi
  1744         if test x$video_directfb = xyes; then
  1745             # SuSE 11.1 installs directfb-config without directfb-devel
  1746             save_CPPFLAGS="$CPPFLAGS"
  1747             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1748             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1749             CPPFLAGS="$save_CPPFLAGS"
  1750             video_directfb=$have_directfb_hdr
  1751         fi
  1752         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1753         AC_MSG_RESULT($video_directfb)
  1754 
  1755         if test x$video_directfb = xyes; then
  1756             AC_ARG_ENABLE(directfb-shared,
  1757 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1758                               , enable_directfb_shared=yes)
  1759 
  1760             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1761             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1762             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1763             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1764 
  1765             AC_MSG_CHECKING(for directfb dynamic loading support)
  1766             directfb_shared=no
  1767             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1768             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1769 AC_MSG_WARN("directfb $directfb_lib")
  1770             if test x$have_loadso != xyes && \
  1771                test x$enable_directfb_shared = xyes; then
  1772                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1773             fi
  1774             if test x$have_loadso = xyes && \
  1775                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1776                 directfb_shared=yes
  1777                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1778                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1779                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1780             else
  1781                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1782                 SUMMARY_video="${SUMMARY_video} directfb"
  1783             fi
  1784             AC_MSG_RESULT($directfb_shared)
  1785             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  1786             have_video=yes
  1787         fi
  1788     fi
  1789 }
  1790 
  1791 dnl Find FusionSound
  1792 CheckFusionSound()
  1793 {
  1794     AC_ARG_ENABLE(fusionsound,
  1795 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1796                   , enable_fusionsound=no)
  1797     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1798         fusionsound=no
  1799 
  1800         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1801 
  1802         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1803         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1804         if test x$PKG_CONFIG != xno; then
  1805             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1806                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1807                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1808                 fusionsound=yes
  1809             fi
  1810         fi
  1811         AC_MSG_RESULT($fusionsound)
  1812 
  1813         if test x$fusionsound = xyes; then
  1814             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1815             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1816             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1817             
  1818             AC_ARG_ENABLE(fusionsound-shared,
  1819 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1820                           , enable_fusionsound_shared=yes)
  1821             fusionsound_shared=no
  1822             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1823             if test x$have_loadso != xyes && \
  1824                test x$enable_fusionsound_shared = xyes; then
  1825                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1826             fi
  1827             if test x$have_loadso = xyes && \
  1828                test x$enable_fusionsound_shared = xyes; then
  1829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1830                 fusionsound_shared=yes
  1831                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1832             else
  1833                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1834                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1835             fi
  1836             AC_MSG_RESULT($fusionsound_shared)
  1837             
  1838             have_audio=yes
  1839         fi
  1840     fi
  1841 }
  1842 
  1843 dnl rcg04172001 Set up the Null video driver.
  1844 CheckDummyVideo()
  1845 {
  1846     AC_ARG_ENABLE(video-dummy,
  1847 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1848                   , enable_video_dummy=yes)
  1849     if test x$enable_video_dummy = xyes; then
  1850         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1851         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1852         have_video=yes
  1853         SUMMARY_video="${SUMMARY_video} dummy"
  1854     fi
  1855 }
  1856 
  1857 dnl Check to see if OpenGL support is desired
  1858 AC_ARG_ENABLE(video-opengl,
  1859 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1860               , enable_video_opengl=yes)
  1861 
  1862 dnl Find OpenGL
  1863 CheckOpenGLX11()
  1864 {
  1865     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1866         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1867         video_opengl=no
  1868         AC_TRY_COMPILE([
  1869          #include <GL/gl.h>
  1870          #include <GL/glx.h>
  1871         ],[
  1872         ],[
  1873         video_opengl=yes
  1874         ])
  1875         AC_MSG_RESULT($video_opengl)
  1876         if test x$video_opengl = xyes; then
  1877             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1878             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1879             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1880             SUMMARY_video="${SUMMARY_video} opengl"
  1881         fi
  1882     fi
  1883 }
  1884 
  1885 dnl Check to see if OpenGL ES support is desired
  1886 AC_ARG_ENABLE(video-opengles,
  1887 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1888               , enable_video_opengles=yes)
  1889 
  1890 dnl Find OpenGL ES
  1891 CheckOpenGLESX11()
  1892 {
  1893     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1894         AC_MSG_CHECKING(for EGL support)
  1895         video_opengl_egl=no
  1896         AC_TRY_COMPILE([
  1897          #include <EGL/egl.h>
  1898         ],[
  1899         ],[
  1900         video_opengl_egl=yes
  1901         ])
  1902         AC_MSG_RESULT($video_opengl_egl)
  1903         if test x$video_opengl_egl = xyes; then
  1904             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1905         fi
  1906             
  1907         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1908         video_opengles_v1=no
  1909         AC_TRY_COMPILE([
  1910          #include <GLES/gl.h>
  1911          #include <GLES/glext.h>
  1912         ],[
  1913         ],[
  1914         video_opengles_v1=yes
  1915         ])
  1916         AC_MSG_RESULT($video_opengles_v1)
  1917         if test x$video_opengles_v1 = xyes; then
  1918             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1919             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1920             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1921         fi
  1922         
  1923         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1924         video_opengles_v2=no
  1925         AC_TRY_COMPILE([
  1926          #include <GLES2/gl2.h>
  1927          #include <GLES2/gl2ext.h>
  1928         ],[
  1929         ],[
  1930         video_opengles_v2=yes
  1931         ])
  1932         AC_MSG_RESULT($video_opengles_v2)
  1933         if test x$video_opengles_v2 = xyes; then
  1934             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1935             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1936             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1937         fi
  1938     fi
  1939 }
  1940 
  1941 dnl Check for Windows OpenGL
  1942 CheckWINDOWSGL()
  1943 {
  1944     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1945         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1946         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1947         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1948         SUMMARY_video="${SUMMARY_video} opengl"
  1949     fi
  1950 }
  1951 
  1952 dnl Check for Windows OpenGL
  1953 CheckWINDOWSGLES()
  1954 {
  1955     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1956 
  1957         AC_MSG_CHECKING(for EGL support)
  1958         video_opengl_egl=no
  1959         AC_TRY_COMPILE([
  1960          #include <EGL/egl.h>
  1961         ],[
  1962         ],[
  1963         video_opengl_egl=yes
  1964         ])
  1965         AC_MSG_RESULT($video_opengl_egl)
  1966         if test x$video_opengl_egl = xyes; then
  1967             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1968             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1969             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1970         fi
  1971        
  1972         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1973         video_opengles_v2=no
  1974         AC_TRY_COMPILE([
  1975          #include <GLES2/gl2.h>
  1976          #include <GLES2/gl2ext.h>
  1977         ],[
  1978         ],[
  1979         video_opengles_v2=yes
  1980         ])
  1981         AC_MSG_RESULT($video_opengles_v2)
  1982         if test x$video_opengles_v2 = xyes; then
  1983             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1984             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1985             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1986             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1987         fi
  1988     fi
  1989 }
  1990 
  1991 dnl Check for Haiku OpenGL
  1992 CheckHaikuGL()
  1993 {
  1994     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1995         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1996         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  1997         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1998         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1999         SUMMARY_video="${SUMMARY_video} opengl"
  2000     fi
  2001 }
  2002 
  2003 dnl Check for MacOS OpenGL
  2004 CheckMacGL()
  2005 {
  2006     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2007         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2008         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2009         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2010         SUMMARY_video="${SUMMARY_video} opengl"
  2011         case "$host" in
  2012             *-*-darwin*)
  2013                 if test x$enable_video_cocoa = xyes; then
  2014                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  2015                 fi
  2016         esac
  2017     fi
  2018 }
  2019 
  2020 dnl See if we can use the new unified event interface in Linux 2.4
  2021 CheckInputEvents()
  2022 {
  2023     dnl Check for Linux 2.4 unified input event interface support
  2024         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2025         use_input_events=no
  2026         AC_TRY_COMPILE([
  2027           #include <linux/input.h>
  2028         ],[
  2029           #ifndef EVIOCGNAME
  2030           #error EVIOCGNAME() ioctl not available
  2031           #endif
  2032         ],[
  2033         use_input_events=yes
  2034         ])
  2035         AC_MSG_RESULT($use_input_events)
  2036         if test x$use_input_events = xyes; then
  2037             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2038             SUMMARY_input="${SUMMARY_input} linuxev"
  2039         fi
  2040 }
  2041 
  2042 dnl See if we can use the kernel kd.h header
  2043 CheckInputKD()
  2044 {
  2045 
  2046     AC_MSG_CHECKING(for Linux kd.h)
  2047     use_input_kd=no
  2048     AC_TRY_COMPILE([
  2049       #include <linux/kd.h>
  2050       #include <linux/keyboard.h>
  2051     ],[
  2052         struct kbentry kbe;
  2053         kbe.kb_table = KG_CTRL;
  2054         ioctl(0, KDGKBENT, &kbe);
  2055     ],[
  2056     use_input_kd=yes
  2057     ])
  2058     AC_MSG_RESULT($use_input_kd)
  2059     if test x$use_input_kd = xyes; then
  2060         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2061         SUMMARY_input="${SUMMARY_input} linuxkd"
  2062     fi
  2063 }
  2064 
  2065 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2066 CheckLibUDev()
  2067 {
  2068     AC_ARG_ENABLE(libudev,
  2069 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2070                         , enable_libudev=yes)
  2071     if test x$enable_libudev = xyes; then
  2072         AC_CHECK_HEADER(libudev.h,
  2073                         have_libudev_h_hdr=yes,
  2074                         have_libudev_h_hdr=no)
  2075         if test x$have_libudev_h_hdr = xyes; then
  2076             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2077         fi
  2078     fi
  2079 }
  2080 
  2081 dnl See if the platform offers libdbus for various IPC techniques.
  2082 CheckDBus()
  2083 {
  2084     AC_ARG_ENABLE(dbus,
  2085 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2086                         , enable_dbus=yes)
  2087     if test x$enable_dbus = xyes; then
  2088         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2089         if test x$PKG_CONFIG != xno; then
  2090             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2091             save_CFLAGS="$CFLAGS"
  2092             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2093             AC_CHECK_HEADER(dbus/dbus.h,
  2094                             have_dbus_dbus_h_hdr=yes,
  2095                             have_dbus_dbus_h_hdr=no)
  2096             CFLAGS="$save_CFLAGS"
  2097             if test x$have_dbus_dbus_h_hdr = xyes; then
  2098                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2099                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2100             fi
  2101         fi
  2102     fi
  2103 }
  2104 
  2105 dnl See if we can use the Touchscreen input library
  2106 CheckTslib()
  2107 {
  2108     AC_ARG_ENABLE(input-tslib,
  2109 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2110                   , enable_input_tslib=yes)
  2111     if test x$enable_input_tslib = xyes; then
  2112         AC_MSG_CHECKING(for Touchscreen library support)
  2113         enable_input_tslib=no
  2114         AC_TRY_COMPILE([
  2115           #include "tslib.h"
  2116         ],[
  2117         ],[
  2118         enable_input_tslib=yes
  2119         ])
  2120         AC_MSG_RESULT($enable_input_tslib)
  2121         if test x$enable_input_tslib = xyes; then
  2122             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2123             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2124             SUMMARY_input="${SUMMARY_input} ts"
  2125         fi
  2126     fi
  2127 }
  2128 
  2129 dnl See what type of thread model to use on Linux and Solaris
  2130 CheckPTHREAD()
  2131 {
  2132     dnl Check for pthread support
  2133     AC_ARG_ENABLE(pthreads,
  2134 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2135                   , enable_pthreads=yes)
  2136     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2137     AC_ARG_ENABLE(pthread-sem,
  2138 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2139                   , enable_pthread_sem=yes)
  2140     case "$host" in
  2141 	 *-*-androideabi*)
  2142             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2143             pthread_lib=""
  2144 	    ;;
  2145         *-*-linux*|*-*-uclinux*)
  2146             pthread_cflags="-D_REENTRANT"
  2147             pthread_lib="-lpthread"
  2148             ;;
  2149         *-*-bsdi*)
  2150             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2151             pthread_lib=""
  2152             ;;
  2153         *-*-darwin*)
  2154             pthread_cflags="-D_THREAD_SAFE"
  2155 # causes Carbon.p complaints?
  2156 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2157             ;;
  2158         *-*-freebsd*|*-*-dragonfly*)
  2159             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2160             pthread_lib="-pthread"
  2161             ;;
  2162         *-*-netbsd*)
  2163             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2164             pthread_lib="-lpthread"
  2165             ;;
  2166         *-*-openbsd*)
  2167             pthread_cflags="-D_REENTRANT"
  2168             pthread_lib="-pthread"
  2169             ;;
  2170         *-*-solaris2.9)
  2171             # From Solaris 9+, posix4's preferred name is rt.
  2172             pthread_cflags="-D_REENTRANT"
  2173             pthread_lib="-lpthread -lrt"
  2174             ;;
  2175         *-*-solaris2.10)
  2176             # Solaris 10+ merged pthread into libc.
  2177             pthread_cflags="-D_REENTRANT"
  2178             pthread_lib="-lrt"
  2179             ;;
  2180         *-*-solaris*)
  2181             # Solaris 11+ merged rt into libc.
  2182             pthread_cflags="-D_REENTRANT"
  2183             pthread_lib=""
  2184             ;;
  2185         *-*-sysv5*)
  2186             pthread_cflags="-D_REENTRANT -Kthread"
  2187             pthread_lib=""
  2188             ;;
  2189         *-*-aix*)
  2190             pthread_cflags="-D_REENTRANT -mthreads"
  2191             pthread_lib="-lpthread"
  2192             ;;
  2193         *-*-hpux11*)
  2194             pthread_cflags="-D_REENTRANT"
  2195             pthread_lib="-L/usr/lib -lpthread"
  2196             ;;
  2197         *-*-haiku*)
  2198             pthread_cflags="-D_REENTRANT"
  2199             pthread_lib=""
  2200             ;;
  2201         *)
  2202             pthread_cflags="-D_REENTRANT"
  2203             pthread_lib="-lpthread"
  2204             ;;
  2205     esac
  2206     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2207         # Save the original compiler flags and libraries
  2208         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2209         # Add the pthread compiler flags and libraries
  2210         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2211         # Check to see if we have pthread support on this system
  2212         AC_MSG_CHECKING(for pthreads)
  2213         use_pthreads=no
  2214         AC_TRY_LINK([
  2215          #include <pthread.h>
  2216         ],[
  2217          pthread_attr_t type;
  2218          pthread_attr_init(&type);
  2219         ],[
  2220         use_pthreads=yes
  2221         ])
  2222         AC_MSG_RESULT($use_pthreads)
  2223         # Restore the compiler flags and libraries
  2224         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2225 
  2226         # Do futher testing if we have pthread support...
  2227         if test x$use_pthreads = xyes; then
  2228             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2229             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2230             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2231             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2232             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2233 
  2234             # Save the original compiler flags and libraries
  2235             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2236             # Add the pthread compiler flags and libraries
  2237             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2238 
  2239             # Check to see if recursive mutexes are available
  2240             AC_MSG_CHECKING(for recursive mutexes)
  2241             has_recursive_mutexes=no
  2242             if test x$has_recursive_mutexes = xno; then
  2243                 AC_TRY_COMPILE([
  2244                   #include <pthread.h>
  2245                 ],[
  2246                   pthread_mutexattr_t attr;
  2247                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2248                 ],[
  2249                 has_recursive_mutexes=yes
  2250                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2251                 ])
  2252             fi
  2253             if test x$has_recursive_mutexes = xno; then
  2254                 AC_TRY_COMPILE([
  2255                   #include <pthread.h>
  2256                 ],[
  2257                   pthread_mutexattr_t attr;
  2258                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2259                 ],[
  2260                 has_recursive_mutexes=yes
  2261                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2262                 ])
  2263             fi
  2264             AC_MSG_RESULT($has_recursive_mutexes)
  2265 
  2266             # Check to see if pthread semaphore support is missing
  2267             if test x$enable_pthread_sem = xyes; then
  2268                 AC_MSG_CHECKING(for pthread semaphores)
  2269                 have_pthread_sem=no
  2270                 AC_TRY_COMPILE([
  2271                   #include <pthread.h>
  2272                   #include <semaphore.h>
  2273                 ],[
  2274                 ],[
  2275                 have_pthread_sem=yes
  2276                 ])
  2277                 AC_MSG_RESULT($have_pthread_sem)
  2278             fi
  2279             if test x$have_pthread_sem = xyes; then
  2280                 AC_MSG_CHECKING(for sem_timedwait)
  2281                 have_sem_timedwait=no
  2282                 AC_TRY_LINK([
  2283                   #include <pthread.h>
  2284                   #include <semaphore.h>
  2285                 ],[
  2286                   sem_timedwait(NULL, NULL);
  2287                 ],[
  2288                 have_sem_timedwait=yes
  2289                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2290                 ])
  2291                 AC_MSG_RESULT($have_sem_timedwait)
  2292             fi
  2293 
  2294             AC_MSG_CHECKING(for pthread_spin_trylock)
  2295             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2296               has_pthread_spin_trylock=yes
  2297               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2298             ],[
  2299               has_pthread_spin_trylock=no
  2300             ])
  2301             AC_MSG_RESULT($has_pthread_spin_trylock)
  2302 
  2303             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2304             if test x$have_pthread_np_h = xyes; then
  2305                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2306             fi
  2307 
  2308             # Check to see if pthread naming is available
  2309             AC_MSG_CHECKING(for pthread_setname_np)
  2310             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2311               has_pthread_setname_np=yes
  2312               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2313             ],[
  2314               has_pthread_setname_np=no
  2315             ])
  2316             AC_MSG_RESULT($has_pthread_setname_np)
  2317 
  2318             AC_MSG_CHECKING(for pthread_set_name_np)
  2319             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2320               has_pthread_set_name_np=yes
  2321               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2322             ],[
  2323               has_pthread_set_name_np=no
  2324             ])
  2325             AC_MSG_RESULT($has_pthread_set_name_np)
  2326 
  2327             # Restore the compiler flags and libraries
  2328             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2329 
  2330             # Basic thread creation functions
  2331             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2332 
  2333             # Semaphores
  2334             # We can fake these with mutexes and condition variables if necessary
  2335             if test x$have_pthread_sem = xyes; then
  2336                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2337             else
  2338                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2339             fi
  2340 
  2341             # Mutexes
  2342             # We can fake these with semaphores if necessary
  2343             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2344 
  2345             # Condition variables
  2346             # We can fake these with semaphores and mutexes if necessary
  2347             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2348 
  2349             # Thread local storage
  2350             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2351 
  2352             have_threads=yes
  2353         fi
  2354     fi
  2355 }
  2356 
  2357 dnl Determine whether the compiler can produce Windows executables
  2358 CheckWINDOWS()
  2359 {
  2360     AC_MSG_CHECKING(Windows compiler)
  2361     have_win32_gcc=no
  2362     AC_TRY_COMPILE([
  2363      #include <windows.h>
  2364     ],[
  2365     ],[
  2366     have_win32_gcc=yes
  2367     ])
  2368     AC_MSG_RESULT($have_win32_gcc)
  2369     if test x$have_win32_gcc != xyes; then
  2370        AC_MSG_ERROR([
  2371 *** Your compiler ($CC) does not produce Windows executables!
  2372        ])
  2373     fi
  2374 
  2375     AC_MSG_CHECKING(Windows CE)
  2376     have_wince=no
  2377     AC_TRY_COMPILE([
  2378 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2379 #error This is not Windows CE
  2380 #endif
  2381     ],[
  2382     ],[
  2383     have_wince=yes
  2384        AC_MSG_ERROR([
  2385 *** Sorry, Windows CE is no longer supported.
  2386        ])
  2387     ])
  2388     AC_MSG_RESULT($have_wince)
  2389 
  2390     # This fixes Windows stack alignment with newer GCC
  2391     CheckStackBoundary
  2392 }
  2393 
  2394 dnl Find the DirectX includes and libraries
  2395 CheckDIRECTX()
  2396 {
  2397     AC_ARG_ENABLE(directx,
  2398 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2399                   , enable_directx=yes)
  2400     if test x$enable_directx = xyes; then
  2401         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2402         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2403         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2404         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2405         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2406         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2407         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2408 
  2409         SUMMARY_video="${SUMMARY_video} directx"
  2410         SUMMARY_audio="${SUMMARY_audio} directx"
  2411 
  2412         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2413         # FIXME:  ...so force it off for now.
  2414         case "$host" in
  2415             *-*-cygwin*)
  2416             have_dinput=false
  2417             ;;
  2418         esac
  2419     fi
  2420 }
  2421 
  2422 dnl Check for the dlfcn.h interface for dynamically loading objects
  2423 CheckDLOPEN()
  2424 {
  2425     AC_ARG_ENABLE(sdl-dlopen,
  2426 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2427                   , enable_sdl_dlopen=yes)
  2428     if test x$enable_sdl_dlopen = xyes; then
  2429         AC_MSG_CHECKING(for dlopen)
  2430         have_dlopen=no
  2431         AC_TRY_COMPILE([
  2432          #include <dlfcn.h>
  2433         ],[
  2434          void *handle = dlopen("", RTLD_NOW);
  2435          const char *loaderror = (char *) dlerror();
  2436         ],[
  2437         have_dlopen=yes
  2438         ])
  2439         AC_MSG_RESULT($have_dlopen)
  2440 
  2441         if test x$have_dlopen = xyes; then
  2442             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2443                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2444                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2445             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2446             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2447             have_loadso=yes
  2448         fi
  2449     fi
  2450 }
  2451 
  2452 dnl Check for the usbhid(3) library on *BSD
  2453 CheckUSBHID()
  2454 {
  2455     case "$host" in
  2456         *-*-*bsd*)
  2457             if test x$enable_joystick = xyes; then
  2458                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2459                 if test x$have_libusbhid = xyes; then
  2460                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2461                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2462                     USB_LIBS="$USB_LIBS -lusbhid"
  2463                 else
  2464                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2465                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2466                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2467                 fi
  2468                     
  2469                 save_CFLAGS="$CFLAGS"
  2470                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2471 
  2472                 AC_MSG_CHECKING(for usbhid)
  2473                 have_usbhid=no
  2474                 AC_TRY_COMPILE([
  2475                   #include <sys/types.h>
  2476                   #if defined(HAVE_USB_H)
  2477                   #include <usb.h>
  2478                   #endif
  2479                   #ifdef __DragonFly__
  2480                   # include <bus/usb/usb.h>
  2481                   # include <bus/usb/usbhid.h>
  2482                   #else
  2483                   # include <dev/usb/usb.h>
  2484                   # include <dev/usb/usbhid.h>
  2485                   #endif
  2486                   #if defined(HAVE_USBHID_H)
  2487                   #include <usbhid.h>
  2488                   #elif defined(HAVE_LIBUSB_H)
  2489                   #include <libusb.h>
  2490                   #elif defined(HAVE_LIBUSBHID_H)
  2491                   #include <libusbhid.h>
  2492                   #endif
  2493                 ],[
  2494                   struct report_desc *repdesc;
  2495                   struct usb_ctl_report *repbuf;
  2496                   hid_kind_t hidkind;
  2497                 ],[
  2498                 have_usbhid=yes
  2499                 ])
  2500                 AC_MSG_RESULT($have_usbhid)
  2501 
  2502                 if test x$have_usbhid = xyes; then
  2503                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2504                     have_usbhid_ucr_data=no
  2505                     AC_TRY_COMPILE([
  2506                       #include <sys/types.h>
  2507                       #if defined(HAVE_USB_H)
  2508                       #include <usb.h>
  2509                       #endif
  2510                       #ifdef __DragonFly__
  2511                       # include <bus/usb/usb.h>
  2512                       # include <bus/usb/usbhid.h>
  2513                       #else
  2514                       # include <dev/usb/usb.h>
  2515                       # include <dev/usb/usbhid.h>
  2516                       #endif
  2517                       #if defined(HAVE_USBHID_H)
  2518                       #include <usbhid.h>
  2519                       #elif defined(HAVE_LIBUSB_H)
  2520                       #include <libusb.h>
  2521                       #elif defined(HAVE_LIBUSBHID_H)
  2522                       #include <libusbhid.h>
  2523                       #endif
  2524                     ],[
  2525                       struct usb_ctl_report buf;
  2526                       if (buf.ucr_data) { }
  2527                     ],[
  2528                     have_usbhid_ucr_data=yes
  2529                     ])
  2530                     if test x$have_usbhid_ucr_data = xyes; then
  2531                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2532                     fi
  2533                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2534                     
  2535                     AC_MSG_CHECKING(for new usbhid API)
  2536                     have_usbhid_new=no
  2537                     AC_TRY_COMPILE([
  2538                       #include <sys/types.h>
  2539                       #if defined(HAVE_USB_H)
  2540                       #include <usb.h>
  2541                       #endif
  2542                       #ifdef __DragonFly__
  2543                       #include <bus/usb/usb.h>
  2544                       #include <bus/usb/usbhid.h>
  2545                       #else
  2546                       #include <dev/usb/usb.h>
  2547                       #include <dev/usb/usbhid.h>
  2548                       #endif
  2549                       #if defined(HAVE_USBHID_H)
  2550                       #include <usbhid.h>
  2551                       #elif defined(HAVE_LIBUSB_H)
  2552                       #include <libusb.h>
  2553                       #elif defined(HAVE_LIBUSBHID_H)
  2554                       #include <libusbhid.h>
  2555                       #endif
  2556                     ],[
  2557                       report_desc_t d;
  2558                       hid_start_parse(d, 1, 1);
  2559                     ],[
  2560                     have_usbhid_new=yes
  2561                     ])
  2562                     if test x$have_usbhid_new = xyes; then
  2563                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2564                     fi
  2565                     AC_MSG_RESULT($have_usbhid_new)
  2566 
  2567                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2568                     have_machine_joystick=no
  2569                     AC_TRY_COMPILE([
  2570                       #include <machine/joystick.h>
  2571                     ],[
  2572                       struct joystick t;
  2573                     ],[
  2574                     have_machine_joystick=yes
  2575                     ])
  2576                     if test x$have_machine_joystick = xyes; then
  2577                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2578                     fi
  2579                     AC_MSG_RESULT($have_machine_joystick)
  2580 
  2581                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2582                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2583                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2584                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2585                     have_joystick=yes
  2586                 fi
  2587                 CFLAGS="$save_CFLAGS"
  2588             fi
  2589         ;;
  2590     esac
  2591 }
  2592 
  2593 dnl Check for clock_gettime()
  2594 CheckClockGettime()
  2595 {
  2596     AC_ARG_ENABLE(clock_gettime,
  2597 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2598                   , enable_clock_gettime=yes)
  2599     if test x$enable_clock_gettime = xyes; then
  2600         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2601         if test x$have_clock_gettime = xyes; then
  2602             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2603             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2604         else
  2605             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2606             if test x$have_clock_gettime = xyes; then
  2607                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2608                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2609             fi
  2610         fi
  2611     fi
  2612 }
  2613 
  2614 dnl Check for a valid linux/version.h
  2615 CheckLinuxVersion()
  2616 {
  2617     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2618     if test x$have_linux_version_h = xyes; then
  2619         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2620     fi
  2621 }
  2622 
  2623 dnl Check if we want to use RPATH
  2624 CheckRPATH()
  2625 {
  2626     AC_ARG_ENABLE(rpath,
  2627 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2628                   , enable_rpath=yes)
  2629 }
  2630 
  2631 dnl Set up the configuration based on the host platform!
  2632 case "$host" in
  2633     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2634         case "$host" in
  2635             *-raspberry-linux*)
  2636                 # Raspberry Pi
  2637                 ARCH=linux
  2638                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2639                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2640                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2641                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2642                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2643 
  2644                 if test x$enable_video = xyes; then
  2645                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2646                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2647                 fi
  2648                 ;;
  2649             *-*-androideabi*)
  2650                 # Android
  2651                 ARCH=android
  2652                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  2653                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  2654                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  2655                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  2656                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  2657 
  2658                 if test x$enable_video = xyes; then
  2659                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  2660                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  2661                 fi
  2662                 ;;
  2663             *-*-linux*)         ARCH=linux ;;
  2664             *-*-uclinux*)       ARCH=linux ;;
  2665             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2666             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2667             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2668             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2669             *-*-bsdi*)          ARCH=bsdi ;;
  2670             *-*-freebsd*)       ARCH=freebsd ;;
  2671             *-*-dragonfly*)     ARCH=freebsd ;;
  2672             *-*-netbsd*)        ARCH=netbsd ;;
  2673             *-*-openbsd*)       ARCH=openbsd ;;
  2674             *-*-sysv5*)         ARCH=sysv5 ;;
  2675             *-*-solaris*)       ARCH=solaris ;;
  2676             *-*-hpux*)          ARCH=hpux ;;
  2677             *-*-aix*)           ARCH=aix ;;
  2678             *-*-minix*)         ARCH=minix ;;
  2679         esac
  2680         CheckVisibilityHidden
  2681         CheckDummyVideo
  2682         CheckDiskAudio
  2683         CheckDummyAudio
  2684         CheckDLOPEN
  2685         CheckOSS
  2686         CheckALSA
  2687         CheckPulseAudio
  2688         CheckARTSC
  2689         CheckESD
  2690         CheckNAS
  2691         CheckSNDIO
  2692         CheckX11
  2693         CheckWayland
  2694         CheckMir
  2695         CheckDirectFB
  2696         CheckFusionSound
  2697         CheckOpenGLX11
  2698         CheckOpenGLESX11
  2699         CheckLibUDev
  2700         CheckDBus
  2701         CheckInputEvents
  2702         CheckInputKD
  2703         CheckTslib
  2704         CheckUSBHID
  2705         CheckPTHREAD
  2706         CheckClockGettime
  2707         CheckLinuxVersion
  2708         CheckRPATH
  2709         # Set up files for the audio library
  2710         if test x$enable_audio = xyes; then
  2711           case $ARCH in
  2712             sysv5|solaris|hpux)
  2713                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2714                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2715                 have_audio=yes
  2716             ;;
  2717             netbsd)  # Don't use this on OpenBSD, it's busted.
  2718                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2719                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2720                 have_audio=yes
  2721             ;;
  2722             aix)
  2723                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2724                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2725                 have_audio=yes
  2726             ;;
  2727             android)
  2728                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  2729                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  2730                 have_audio=yes
  2731             ;;
  2732           esac
  2733         fi
  2734         # Set up files for the joystick library
  2735         if test x$enable_joystick = xyes; then
  2736           case $ARCH in
  2737             linux)
  2738                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2739                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2740                 have_joystick=yes
  2741             ;;
  2742             android)
  2743                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  2744                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  2745                 have_joystick=yes
  2746             ;;
  2747           esac
  2748         fi
  2749         # Set up files for the haptic library
  2750         if test x$enable_haptic = xyes; then
  2751            if test x$use_input_events = xyes; then
  2752              case $ARCH in
  2753                linux)
  2754                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2755                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2756                    have_haptic=yes
  2757                ;;
  2758              esac
  2759            fi
  2760         fi
  2761         # Set up files for the power library
  2762         if test x$enable_power = xyes; then
  2763              case $ARCH in
  2764                linux)
  2765                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2766                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2767                    have_power=yes
  2768                ;;
  2769                android)
  2770                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  2771                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  2772                    have_power=yes
  2773                ;;
  2774              esac
  2775         fi
  2776         # Set up files for the filesystem library
  2777         if test x$enable_filesystem = xyes; then
  2778             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2779             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2780             have_filesystem=yes
  2781         fi
  2782         # Set up files for the timer library
  2783         if test x$enable_timers = xyes; then
  2784             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2785             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2786             have_timers=yes
  2787         fi
  2788         # Set up files for udev hotplugging support
  2789         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2790             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2791         fi
  2792         # Set up files for evdev input
  2793         if test x$use_input_events = xyes; then
  2794             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2795         fi       
  2796         ;;
  2797     *-*-cygwin* | *-*-mingw32*)
  2798         ARCH=win32
  2799         if test "$build" != "$host"; then # cross-compiling
  2800             # Default cross-compile location
  2801             ac_default_prefix=/usr/local/cross-tools/$host
  2802         else
  2803             # Look for the location of the tools and install there
  2804             if test "$BUILD_PREFIX" != ""; then
  2805                 ac_default_prefix=$BUILD_PREFIX
  2806             fi
  2807         fi
  2808         CheckDummyVideo
  2809         CheckDiskAudio
  2810         CheckDummyAudio
  2811         CheckWINDOWS
  2812         CheckWINDOWSGL
  2813         CheckWINDOWSGLES
  2814         CheckDIRECTX
  2815 
  2816         # Set up the core platform files
  2817         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2818 
  2819         # Set up files for the video library
  2820         if test x$enable_video = xyes; then
  2821             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2822             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2823             have_video=yes
  2824             AC_ARG_ENABLE(render-d3d,
  2825 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2826                                 , enable_render_d3d=yes)
  2827             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2828                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2829             fi
  2830             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  2831                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  2832             fi
  2833         fi
  2834         if test x$have_dxgi = xyes; then
  2835             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  2836         fi
  2837         # Set up files for the audio library
  2838         if test x$enable_audio = xyes; then
  2839             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2840             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2841             if test x$have_dsound = xyes; then
  2842                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2843                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2844             fi
  2845             if test x$have_xaudio2 = xyes; then
  2846                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2847                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2848             fi
  2849             have_audio=yes
  2850         fi
  2851         # Set up files for the joystick library
  2852         if test x$enable_joystick = xyes; then
  2853             if test x$have_dinput = xyes; then
  2854                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2855                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2856                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2857             else
  2858                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2859                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2860             fi
  2861             have_joystick=yes
  2862         fi
  2863         if test x$enable_haptic = xyes; then
  2864             if test x$have_dinput = xyes; then
  2865                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2866                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2867                 have_haptic=yes
  2868             fi
  2869         fi
  2870         if test x$enable_power = xyes; then
  2871             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2872             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2873             have_power=yes
  2874         fi
  2875         if test x$enable_filesystem = xyes; then
  2876             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2877             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2878             have_filesystem=yes
  2879         fi
  2880         # Set up files for the thread library
  2881         if test x$enable_threads = xyes; then
  2882             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2883             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2884             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2885             have_threads=yes
  2886         fi
  2887         # Set up files for the timer library
  2888         if test x$enable_timers = xyes; then
  2889             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2890             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2891             have_timers=yes
  2892         fi
  2893         # Set up files for the shared object loading library
  2894         if test x$enable_loadso = xyes; then
  2895             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2896             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2897             have_loadso=yes
  2898         fi
  2899         # Set up the system libraries we need
  2900         if test -f /lib/w32api/libuuid.a; then
  2901             LIBUUID=/lib/w32api/libuuid.a
  2902         else
  2903             LIBUUID=-luuid
  2904         fi
  2905         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -XCClinker -static-libgcc"
  2906         # The Windows platform requires special setup
  2907         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2908         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2909         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2910         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2911 
  2912         # Check to see if this is a mingw or cygwin build
  2913         have_mingw32=
  2914         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2915         if test x$have_mingw32 = xyes; then
  2916             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2917         else
  2918             SDL_LIBS="-lcygwin $SDL_LIBS"
  2919         fi
  2920         ;;
  2921 
  2922     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2923     *-*-beos*)
  2924         AC_MSG_ERROR([
  2925 *** BeOS support has been removed as of SDL 2.0.2.
  2926         ])
  2927         ;;
  2928 
  2929     *-*-haiku*)
  2930         ARCH=haiku
  2931         ac_default_prefix=/boot/system
  2932         CheckDummyVideo
  2933         CheckDiskAudio
  2934         CheckDummyAudio
  2935         CheckHaikuVideo
  2936         CheckHaikuGL
  2937         CheckPTHREAD
  2938 
  2939         # Set up files for the audio library
  2940         if test x$enable_audio = xyes; then
  2941             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2942             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2943             have_audio=yes
  2944         fi
  2945         # Set up files for the joystick library
  2946         if test x$enable_joystick = xyes; then
  2947             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2948             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2949             have_joystick=yes
  2950         fi
  2951         # Set up files for the timer library
  2952         if test x$enable_timers = xyes; then
  2953             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2954             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2955             have_timers=yes
  2956         fi
  2957         # Set up files for the shared object loading library
  2958         if test x$enable_loadso = xyes; then
  2959             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2960             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2961             have_loadso=yes
  2962         fi
  2963         # Set up files for the system power library
  2964         if test x$enable_power = xyes; then
  2965             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2966             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2967             have_power=yes
  2968         fi
  2969         # Set up files for the system filesystem library
  2970         if test x$enable_filesystem = xyes; then
  2971             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2972             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2973             have_filesystem=yes
  2974         fi
  2975         # The Haiku platform requires special setup.
  2976         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2977         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2978         ;;
  2979     arm*-apple-darwin*)
  2980         # iOS - We are not writing anything to confdefs.h because you have to replace
  2981         # SDL_config.h for SDL_config_iphoneos.h anyway
  2982         ARCH=ios
  2983 
  2984         CheckVisibilityHidden
  2985         CheckDummyVideo
  2986         CheckDiskAudio
  2987         CheckDummyAudio
  2988         CheckDLOPEN
  2989         CheckCOCOA
  2990         CheckPTHREAD
  2991 
  2992 
  2993         # Set up files for the audio library
  2994         if test x$enable_audio = xyes; then
  2995             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2996             have_audio=yes
  2997         fi
  2998         # Set up files for the joystick library
  2999         if test x$enable_joystick = xyes; then
  3000             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3001             have_joystick=yes
  3002         fi
  3003         # Set up files for the haptic library
  3004         #if test x$enable_haptic = xyes; then
  3005         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3006         #    have_haptic=yes
  3007         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3008         #fi
  3009         # Set up files for the power library
  3010         if test x$enable_power = xyes; then
  3011             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3012             have_power=yes
  3013         fi
  3014         # Set up files for the filesystem library
  3015         if test x$enable_filesystem = xyes; then
  3016             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3017             have_filesystem=yes
  3018         fi
  3019         # Set up files for the timer library
  3020         if test x$enable_timers = xyes; then
  3021             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3022             have_timers=yes
  3023         fi
  3024         # Set up additional files for the file library
  3025         if test x$enable_file = xyes; then
  3026             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3027         fi
  3028         # The iOS platform requires special setup.
  3029         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3030         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3031         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3032         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3033         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3034         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3035         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3036         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3037         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3038         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3039         ;;
  3040     *-*-darwin* )
  3041         # This could be either full "Mac OS X", or plain "Darwin" which is
  3042         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3043         # Next line is broken, and a few files below require Mac OS X (full)
  3044         ARCH=macosx
  3045 
  3046         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3047         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3048         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3049 
  3050         CheckVisibilityHidden
  3051         CheckDummyVideo
  3052         CheckDiskAudio
  3053         CheckDummyAudio
  3054         CheckDLOPEN
  3055         CheckCOCOA
  3056         CheckX11
  3057         CheckMacGL
  3058         CheckOpenGLX11
  3059         CheckPTHREAD
  3060 
  3061         # Set up files for the audio library
  3062         if test x$enable_audio = xyes; then
  3063             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3064             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3065             have_audio=yes
  3066         fi
  3067         # Set up files for the joystick library
  3068         if test x$enable_joystick = xyes; then
  3069             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3070             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3071             have_joystick=yes
  3072         fi
  3073         # Set up files for the haptic library
  3074         if test x$enable_haptic = xyes; then
  3075             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3076             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3077             have_haptic=yes
  3078             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3079         fi
  3080         # Set up files for the power library
  3081         if test x$enable_power = xyes; then
  3082             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3083             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3084             have_power=yes
  3085         fi
  3086         # Set up files for the filesystem library
  3087         if test x$enable_filesystem = xyes; then
  3088             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3089             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3090             have_filesystem=yes
  3091         fi
  3092         # Set up files for the timer library
  3093         if test x$enable_timers = xyes; then
  3094             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3095             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3096             have_timers=yes
  3097         fi
  3098         # Set up additional files for the file library
  3099         if test x$enable_file = xyes; then
  3100             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3101         fi
  3102         # The Mac OS X platform requires special setup.
  3103         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3104         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3105         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3106         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3107         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3108         # If audio is used, add the AudioUnit framework
  3109         if test x$enable_audio = xyes; then
  3110             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3111         fi
  3112         ;;
  3113     *)
  3114         AC_MSG_ERROR([
  3115 *** Unsupported host:  Please add to configure.in
  3116         ])
  3117         ;;
  3118 esac
  3119 
  3120 dnl Do this on all platforms, after everything else.
  3121 CheckWarnAll
  3122 
  3123 # Verify that we have all the platform specific files we need
  3124 
  3125 if test x$have_joystick != xyes; then
  3126     if test x$enable_joystick = xyes; then
  3127         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3128     fi
  3129     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3130 fi
  3131 if test x$have_haptic != xyes; then
  3132     if test x$enable_haptic = xyes; then
  3133         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3134     fi
  3135     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3136 fi
  3137 if test x$have_threads != xyes; then
  3138     if test x$enable_threads = xyes; then
  3139         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3140     fi
  3141     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3142 fi
  3143 if test x$have_timers != xyes; then
  3144     if test x$enable_timers = xyes; then
  3145         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3146     fi
  3147     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3148 fi
  3149 if test x$have_filesystem != xyes; then
  3150     if test x$enable_filesystem = xyes; then
  3151         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3152     fi
  3153     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3154 fi
  3155 if test x$have_loadso != xyes; then
  3156     if test x$enable_loadso = xyes; then
  3157         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3158     fi
  3159     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3160 fi
  3161 if test x$SDLMAIN_SOURCES = x; then
  3162     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3163 fi
  3164 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3165 
  3166 OBJECTS=`echo $SOURCES`
  3167 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3168 for EXT in asm cc m c S; do
  3169     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3170     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3171 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3172 	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3173 done
  3174 
  3175 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3176 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3177 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3178 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3179 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3180 	\\$(WINDRES) \\$< \\$@,g"`
  3181 
  3182 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3183 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3184 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3185 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3186 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3187 	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3188 
  3189 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3190 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3191 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3192 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3193 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3194 	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3195 
  3196 # Set runtime shared library paths as needed
  3197 
  3198 if test "x$enable_rpath" = "xyes"; then
  3199   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3200     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3201   fi
  3202   if test $ARCH = solaris; then
  3203     SDL_RLD_FLAGS="-R\${libdir}"
  3204   fi
  3205 else
  3206   SDL_RLD_FLAGS=""
  3207 fi
  3208 
  3209 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3210 
  3211 dnl Expand the cflags and libraries needed by apps using SDL
  3212 AC_SUBST(SDL_CFLAGS)
  3213 AC_SUBST(SDL_LIBS)
  3214 AC_SUBST(SDL_STATIC_LIBS)
  3215 AC_SUBST(SDL_RLD_FLAGS)
  3216 if test x$enable_shared = xyes; then
  3217     ENABLE_SHARED_TRUE=
  3218     ENABLE_SHARED_FALSE="#"
  3219 else
  3220     ENABLE_SHARED_TRUE="#"
  3221     ENABLE_SHARED_FALSE=
  3222 fi
  3223 if test x$enable_static = xyes; then
  3224     ENABLE_STATIC_TRUE=
  3225     ENABLE_STATIC_FALSE="#"
  3226 else
  3227     ENABLE_STATIC_TRUE="#"
  3228     ENABLE_STATIC_FALSE=
  3229 fi
  3230 AC_SUBST(ENABLE_SHARED_TRUE)
  3231 AC_SUBST(ENABLE_SHARED_FALSE)
  3232 AC_SUBST(ENABLE_STATIC_TRUE)
  3233 AC_SUBST(ENABLE_STATIC_FALSE)
  3234 
  3235 dnl Expand the sources and objects needed to build the library
  3236 AC_SUBST(ac_aux_dir)
  3237 AC_SUBST(INCLUDE)
  3238 AC_SUBST(OBJECTS)
  3239 AC_SUBST(VERSION_OBJECTS)
  3240 AC_SUBST(SDLMAIN_OBJECTS)
  3241 AC_SUBST(SDLTEST_OBJECTS)
  3242 AC_SUBST(BUILD_CFLAGS)
  3243 AC_SUBST(EXTRA_CFLAGS)
  3244 AC_SUBST(BUILD_LDFLAGS)
  3245 AC_SUBST(EXTRA_LDFLAGS)
  3246 AC_SUBST(WINDRES)
  3247 
  3248 cat >Makefile.rules <<__EOF__
  3249 
  3250 # Build rules for objects
  3251 -include \$(OBJECTS:.lo=.d)
  3252 
  3253 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3254 $srcdir/src/SDL.c: update-revision
  3255 $DEPENDS
  3256 $VERSION_DEPENDS
  3257 $SDLMAIN_DEPENDS
  3258 $SDLTEST_DEPENDS
  3259 __EOF__
  3260 
  3261 AC_CONFIG_FILES([
  3262     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3263 ])
  3264 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3265 
  3266 SUMMARY="SDL2 Configure Summary:\n"
  3267 if test x$enable_shared = xyes; then
  3268     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3269 fi
  3270 if test x$enable_static = xyes; then
  3271     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3272 fi
  3273 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3274 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3275 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3276 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3277 if test x$have_x = xyes; then
  3278     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3279 fi
  3280 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3281 if test x$enable_libudev = xyes; then
  3282     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3283 else
  3284     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3285 fi
  3286 if test x$have_dbus_dbus_h_hdr = xyes; then
  3287     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3288 else
  3289     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3290 fi
  3291 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3292 
  3293 AC_OUTPUT