configure.in
author Brandon Schaefer <brandon.schaefer@canonical.com>
Thu, 17 Apr 2014 13:58:39 -0700
changeset 8702 274017846e73
parent 8680 eb1281b43b5d
child 8703 0c32452a6141
permissions -rw-r--r--
Add MIR_CFLAGS to SDL_CFLAGS so these cflags are added to the sdl2.pc file.
     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             SDL_CFLAGS="$SDL_CFLAGS $MIR_CFLAGS"
  1303             have_video=yes
  1304         fi
  1305     fi
  1306 }
  1307 
  1308 
  1309 dnl Find the X11 include and library directories
  1310 CheckX11()
  1311 {
  1312 
  1313 
  1314     AC_ARG_ENABLE(video-x11,
  1315 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1316                   , enable_video_x11=yes)
  1317     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1318         case "$host" in
  1319             *-*-darwin*)
  1320                 # This isn't necessary for X11, but fixes GLX detection
  1321                 if test "x$x_includes" = xNONE && \
  1322                    test "x$x_libraries" = xNONE && \
  1323                    test -d /usr/X11R6/include && \
  1324                    test -d /usr/X11R6/lib; then
  1325                     x_includes="/usr/X11R6/include"
  1326                     x_libraries="/usr/X11R6/lib"
  1327                 fi
  1328                 ;;
  1329         esac
  1330         AC_PATH_X
  1331         AC_PATH_XTRA
  1332         if test x$have_x = xyes; then
  1333             AC_ARG_ENABLE(x11-shared,
  1334 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1335                           , enable_x11_shared=maybe)
  1336 
  1337             case "$host" in
  1338                 *-*-darwin*)
  1339                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1340                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1341                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1342                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1343                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1344                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1345                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1346                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1347                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1348                     ;;
  1349                 *-*-openbsd*)
  1350                     x11_lib='libX11.so'
  1351                     x11ext_lib='libXext.so'
  1352                     xcursor_lib='libXcursor.so'
  1353                     xinerama_lib='libXinerama.so'
  1354                     xinput_lib='libXi.so'
  1355                     xrandr_lib='libXrandr.so'
  1356                     xrender_lib='libXrender.so'
  1357                     xss_lib='libXss.so'
  1358                     xvidmode_lib='libXxf86vm.so'
  1359                     ;;
  1360                 *)
  1361                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1362                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1363                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1364                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1365                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1366                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1367                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1368                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1369                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1370                     ;;
  1371             esac
  1372 
  1373             if test x$ac_cv_func_shmat != xyes; then
  1374                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1375             fi
  1376             CFLAGS="$CFLAGS $X_CFLAGS"
  1377             LDFLAGS="$LDFLAGS $X_LIBS"
  1378 
  1379             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1380                             have_xext_h_hdr=yes,
  1381                             have_xext_h_hdr=no,
  1382                             [#include <X11/Xlib.h>
  1383                              #include <X11/Xproto.h>
  1384                             ])
  1385             if test x$have_xext_h_hdr != xyes; then
  1386                AC_MSG_ERROR([
  1387 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1388                ])
  1389             fi
  1390 
  1391             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1392             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1393             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1394 
  1395             # Needed so SDL applications can include SDL_syswm.h
  1396             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1397 
  1398             if test x$enable_x11_shared = xmaybe; then
  1399                 enable_x11_shared=yes
  1400             fi
  1401             if test x$have_loadso != xyes && \
  1402                test x$enable_x11_shared = xyes; then
  1403                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1404                 enable_x11_shared=no
  1405             fi
  1406             if test x$have_loadso = xyes && \
  1407                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1408                 echo "-- dynamic libX11 -> $x11_lib"
  1409                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1410                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1411                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1412                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1413             else
  1414                 enable_x11_shared=no
  1415                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1416                 SUMMARY_video="${SUMMARY_video} x11"
  1417             fi
  1418             have_video=yes
  1419 
  1420             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1421             have_const_param_XextAddDisplay=no
  1422             AC_TRY_COMPILE([
  1423               #include <X11/Xlib.h>
  1424               #include <X11/Xproto.h>
  1425               #include <X11/extensions/Xext.h>
  1426               #include <X11/extensions/extutil.h>
  1427               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1428             ],[
  1429             ],[
  1430             have_const_param_XextAddDisplay=yes
  1431             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1432             ])
  1433             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1434 
  1435             AC_MSG_CHECKING(for const parameter to _XData32)
  1436 	    have_const_param_xdata32=no
  1437 	    AC_TRY_COMPILE([
  1438 	      #include <X11/Xlibint.h>
  1439 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1440 	    ],[
  1441 	    ],[
  1442 	    have_const_param_xdata32=yes
  1443 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1444 	    ])
  1445 	    AC_MSG_RESULT($have_const_param_xdata32)
  1446 
  1447             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1448             AC_MSG_CHECKING([for XGenericEvent])
  1449             have_XGenericEvent=no
  1450             AC_TRY_COMPILE([
  1451               	#include <X11/Xlib.h>
  1452             ],[
  1453 Display *display;
  1454 XEvent event;
  1455 XGenericEventCookie *cookie = &event.xcookie;
  1456 XNextEvent(display, &event);
  1457 XGetEventData(display, cookie);
  1458 XFreeEventData(display, cookie);
  1459             ],[
  1460                 have_XGenericEvent=yes
  1461                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1462             ])
  1463             AC_MSG_RESULT($have_XGenericEvent)
  1464 
  1465             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1466 
  1467             AC_ARG_ENABLE(video-x11-xcursor,
  1468 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1469                             , enable_video_x11_xcursor=yes)
  1470             if test x$enable_video_x11_xcursor = xyes; then
  1471                 definitely_enable_video_x11_xcursor=no
  1472                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1473                                 have_xcursor_h_hdr=yes,
  1474                                 have_xcursor_h_hdr=no,
  1475                                 [#include <X11/Xlib.h>
  1476                                 ])
  1477                 if test x$have_xcursor_h_hdr = xyes; then
  1478                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1479                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1480                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1481                         definitely_enable_video_x11_xcursor=yes
  1482                     else
  1483                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1484                         if test x$have_xcursor_lib = xyes ; then
  1485                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1486                             definitely_enable_video_x11_xcursor=yes
  1487                         fi
  1488                     fi
  1489                 fi
  1490             fi
  1491             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1492                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1493                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1494             fi
  1495             AC_ARG_ENABLE(video-x11-xinerama,
  1496 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1497                             , enable_video_x11_xinerama=yes)
  1498             if test x$enable_video_x11_xinerama = xyes; then
  1499                 definitely_enable_video_x11_xinerama=no
  1500                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1501                                 have_xinerama_h_hdr=yes,
  1502                                 have_xinerama_h_hdr=no,
  1503                                 [#include <X11/Xlib.h>
  1504                                 ])
  1505                 if test x$have_xinerama_h_hdr = xyes; then
  1506                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1507                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1508                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1509                         definitely_enable_video_x11_xinerama=yes
  1510                     else
  1511                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1512                         if test x$have_xinerama_lib = xyes ; then
  1513                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1514                             definitely_enable_video_x11_xinerama=yes
  1515                         fi
  1516                     fi
  1517                 fi
  1518             fi
  1519             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1520                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1521                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1522             fi
  1523             AC_ARG_ENABLE(video-x11-xinput,
  1524 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1525                             , enable_video_x11_xinput=yes)
  1526             if test x$enable_video_x11_xinput = xyes; then
  1527                 definitely_enable_video_x11_xinput=no
  1528                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1529                                 have_xinput_h_hdr=yes,
  1530                                 have_xinput_h_hdr=no,
  1531                                 [#include <X11/Xlib.h>
  1532                                 ])
  1533                 if test x$have_xinput_h_hdr = xyes; then
  1534                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1535                         echo "-- dynamic libXi -> $xinput_lib"
  1536                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1537                         definitely_enable_video_x11_xinput=yes
  1538                     else
  1539                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1540                         if test x$have_xinput_lib = xyes ; then
  1541                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1542                             definitely_enable_video_x11_xinput=yes
  1543                         fi
  1544                     fi
  1545                 fi
  1546             fi
  1547             if test x$definitely_enable_video_x11_xinput = xyes; then
  1548                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1549                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1550                 AC_MSG_CHECKING(for xinput2 multitouch)
  1551             	have_xinput2_multitouch=no
  1552             	AC_TRY_COMPILE([
  1553               		#include <X11/Xlib.h>
  1554              		#include <X11/Xproto.h>
  1555 			#include <X11/extensions/XInput2.h>
  1556             	],[
  1557 int event_type = XI_TouchBegin;
  1558 XITouchClassInfo *t;
  1559             	],[
  1560             	have_xinput2_multitouch=yes
  1561             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1562                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1563             	])
  1564             	AC_MSG_RESULT($have_xinput2_multitouch)
  1565             fi
  1566             AC_ARG_ENABLE(video-x11-xrandr,
  1567 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1568                             , enable_video_x11_xrandr=yes)
  1569             if test x$enable_video_x11_xrandr = xyes; then
  1570                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1571                 definitely_enable_video_x11_xrandr=no
  1572                 have_xrandr_h_hdr=no
  1573                 AC_TRY_COMPILE([
  1574                 #include <X11/Xlib.h>
  1575                 #include <X11/extensions/Xrandr.h>
  1576                 ],[
  1577                 XRRScreenResources *res = NULL;
  1578                 ],[
  1579                 have_xrandr_h_hdr=yes
  1580                 ])
  1581                 if test x$have_xrandr_h_hdr = xyes; then
  1582                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1583                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1584                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1585                         definitely_enable_video_x11_xrandr=yes
  1586                     else
  1587                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1588                         if test x$have_xrandr_lib = xyes ; then
  1589                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1590                             definitely_enable_video_x11_xrandr=yes
  1591                         fi
  1592                     fi
  1593                 fi
  1594             fi
  1595             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1596                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1597                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1598             fi
  1599             AC_ARG_ENABLE(video-x11-scrnsaver,
  1600 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1601                             , enable_video_x11_scrnsaver=yes)
  1602             if test x$enable_video_x11_scrnsaver = xyes; then
  1603                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1604                                 have_scrnsaver_h_hdr=yes,
  1605                                 have_scrnsaver_h_hdr=no,
  1606                                 [#include <X11/Xlib.h>
  1607                                 ])
  1608                 if test x$have_scrnsaver_h_hdr = xyes; then
  1609                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1610                         echo "-- dynamic libXss -> $xss_lib"
  1611                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1612                         definitely_enable_video_x11_scrnsaver=yes
  1613                     else
  1614                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1615                         if test x$have_xss_lib = xyes ; then
  1616                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1617                             definitely_enable_video_x11_scrnsaver=yes
  1618                         fi
  1619                     fi
  1620                 fi
  1621             fi
  1622             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1623                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1624                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1625             fi
  1626             AC_ARG_ENABLE(video-x11-xshape,
  1627 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1628                             , enable_video_x11_xshape=yes)
  1629             if test x$enable_video_x11_xshape = xyes; then
  1630                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1631                                 have_shape_h_hdr=yes,
  1632                                 have_shape_h_hdr=no,
  1633                                 [#include <X11/Xlib.h>
  1634                                 ])
  1635                 if test x$have_shape_h_hdr = xyes; then
  1636                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1637                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1638                 fi
  1639             fi
  1640             AC_ARG_ENABLE(video-x11-vm,
  1641 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1642                             , enable_video_x11_vm=yes)
  1643             if test x$enable_video_x11_vm = xyes; then
  1644                 definitely_enable_video_x11_vm=no
  1645                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1646                                 have_vm_h_hdr=yes,
  1647                                 have_vm_h_hdr=no,
  1648                                 [#include <X11/Xlib.h>
  1649                                 ])
  1650                 if test x$have_vm_h_hdr = xyes; then
  1651                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1652                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1653                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1654                         definitely_enable_video_x11_vm=yes
  1655                     else
  1656                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1657                         if test x$have_vm_lib = xyes ; then
  1658                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1659                             definitely_enable_video_x11_vm=yes
  1660                         fi
  1661                     fi
  1662                 fi
  1663             fi
  1664             if test x$definitely_enable_video_x11_vm = xyes; then
  1665                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1666                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1667             fi
  1668         fi
  1669     fi
  1670 }
  1671 
  1672 dnl Set up the Haiku video driver if enabled
  1673 CheckHaikuVideo()
  1674 {
  1675     if test x$enable_video = xyes; then
  1676         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1677         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1678         have_video=yes
  1679         SUMMARY_video="${SUMMARY_video} haiku"
  1680     fi
  1681 }
  1682 
  1683 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1684 CheckCOCOA()
  1685 {
  1686     AC_ARG_ENABLE(video-cocoa,
  1687 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1688                   , enable_video_cocoa=yes)
  1689     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1690         save_CFLAGS="$CFLAGS"
  1691         dnl work around that we don't have Objective-C support in autoconf
  1692         CFLAGS="$CFLAGS -x objective-c"
  1693         AC_MSG_CHECKING(for Cocoa framework)
  1694         have_cocoa=no
  1695         AC_TRY_COMPILE([
  1696           #import <Cocoa/Cocoa.h>
  1697         ],[
  1698         ],[
  1699         have_cocoa=yes
  1700         ])
  1701         AC_MSG_RESULT($have_cocoa)
  1702         CFLAGS="$save_CFLAGS"
  1703         if test x$have_cocoa = xyes; then
  1704             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1705             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1706             SUMMARY_video="${SUMMARY_video} cocoa"
  1707             have_video=yes
  1708         fi
  1709     fi
  1710 }
  1711 
  1712 dnl Find DirectFB
  1713 CheckDirectFB()
  1714 {
  1715     AC_ARG_ENABLE(video-directfb,
  1716 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1717                   , enable_video_directfb=no)
  1718     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1719         video_directfb=no
  1720 
  1721         DIRECTFB_REQUIRED_VERSION=1.0.0
  1722         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1723         if test x$DIRECTFBCONFIG = xno; then
  1724             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1725             if test x$PKG_CONFIG != xno; then
  1726                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1727                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1728                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1729                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1730                     video_directfb=yes
  1731                 fi
  1732             fi
  1733         else
  1734             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1735             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1736             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1737             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1738             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1739                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1740                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1741                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1742                 video_directfb=yes
  1743             fi
  1744         fi
  1745         if test x$video_directfb = xyes; then
  1746             # SuSE 11.1 installs directfb-config without directfb-devel
  1747             save_CPPFLAGS="$CPPFLAGS"
  1748             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1749             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1750             CPPFLAGS="$save_CPPFLAGS"
  1751             video_directfb=$have_directfb_hdr
  1752         fi
  1753         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1754         AC_MSG_RESULT($video_directfb)
  1755 
  1756         if test x$video_directfb = xyes; then
  1757             AC_ARG_ENABLE(directfb-shared,
  1758 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1759                               , enable_directfb_shared=yes)
  1760 
  1761             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1762             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1763             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1764             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1765 
  1766             AC_MSG_CHECKING(for directfb dynamic loading support)
  1767             directfb_shared=no
  1768             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1769             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1770 AC_MSG_WARN("directfb $directfb_lib")
  1771             if test x$have_loadso != xyes && \
  1772                test x$enable_directfb_shared = xyes; then
  1773                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1774             fi
  1775             if test x$have_loadso = xyes && \
  1776                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1777                 directfb_shared=yes
  1778                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1779                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1780                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1781             else
  1782                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1783                 SUMMARY_video="${SUMMARY_video} directfb"
  1784             fi
  1785             AC_MSG_RESULT($directfb_shared)
  1786             have_video=yes
  1787         fi
  1788     fi
  1789 }
  1790 
  1791 dnl Find FusionSound
  1792 CheckFusionSound()
  1793 {
  1794     AC_ARG_ENABLE(fusionsound,
  1795 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1796                   , enable_fusionsound=no)
  1797     if test x$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         *-*-linux*|*-*-uclinux*)
  2142             pthread_cflags="-D_REENTRANT"
  2143             pthread_lib="-lpthread"
  2144             ;;
  2145         *-*-bsdi*)
  2146             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2147             pthread_lib=""
  2148             ;;
  2149         *-*-darwin*)
  2150             pthread_cflags="-D_THREAD_SAFE"
  2151 # causes Carbon.p complaints?
  2152 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2153             ;;
  2154         *-*-freebsd*|*-*-dragonfly*)
  2155             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2156             pthread_lib="-pthread"
  2157             ;;
  2158         *-*-netbsd*)
  2159             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2160             pthread_lib="-lpthread"
  2161             ;;
  2162         *-*-openbsd*)
  2163             pthread_cflags="-D_REENTRANT"
  2164             pthread_lib="-pthread"
  2165             ;;
  2166         *-*-solaris2.9)
  2167             # From Solaris 9+, posix4's preferred name is rt.
  2168             pthread_cflags="-D_REENTRANT"
  2169             pthread_lib="-lpthread -lrt"
  2170             ;;
  2171         *-*-solaris2.10)
  2172             # Solaris 10+ merged pthread into libc.
  2173             pthread_cflags="-D_REENTRANT"
  2174             pthread_lib="-lrt"
  2175             ;;
  2176         *-*-solaris*)
  2177             # Solaris 11+ merged rt into libc.
  2178             pthread_cflags="-D_REENTRANT"
  2179             pthread_lib=""
  2180             ;;
  2181         *-*-sysv5*)
  2182             pthread_cflags="-D_REENTRANT -Kthread"
  2183             pthread_lib=""
  2184             ;;
  2185         *-*-aix*)
  2186             pthread_cflags="-D_REENTRANT -mthreads"
  2187             pthread_lib="-lpthread"
  2188             ;;
  2189         *-*-hpux11*)
  2190             pthread_cflags="-D_REENTRANT"
  2191             pthread_lib="-L/usr/lib -lpthread"
  2192             ;;
  2193         *-*-haiku*)
  2194             pthread_cflags="-D_REENTRANT"
  2195             pthread_lib=""
  2196             ;;
  2197         *)
  2198             pthread_cflags="-D_REENTRANT"
  2199             pthread_lib="-lpthread"
  2200             ;;
  2201     esac
  2202     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2203         # Save the original compiler flags and libraries
  2204         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2205         # Add the pthread compiler flags and libraries
  2206         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2207         # Check to see if we have pthread support on this system
  2208         AC_MSG_CHECKING(for pthreads)
  2209         use_pthreads=no
  2210         AC_TRY_LINK([
  2211          #include <pthread.h>
  2212         ],[
  2213          pthread_attr_t type;
  2214          pthread_attr_init(&type);
  2215         ],[
  2216         use_pthreads=yes
  2217         ])
  2218         AC_MSG_RESULT($use_pthreads)
  2219         # Restore the compiler flags and libraries
  2220         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2221 
  2222         # Do futher testing if we have pthread support...
  2223         if test x$use_pthreads = xyes; then
  2224             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2225             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2226             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2227             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2228             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2229 
  2230             # Save the original compiler flags and libraries
  2231             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2232             # Add the pthread compiler flags and libraries
  2233             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2234 
  2235             # Check to see if recursive mutexes are available
  2236             AC_MSG_CHECKING(for recursive mutexes)
  2237             has_recursive_mutexes=no
  2238             if test x$has_recursive_mutexes = xno; then
  2239                 AC_TRY_COMPILE([
  2240                   #include <pthread.h>
  2241                 ],[
  2242                   pthread_mutexattr_t attr;
  2243                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2244                 ],[
  2245                 has_recursive_mutexes=yes
  2246                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2247                 ])
  2248             fi
  2249             if test x$has_recursive_mutexes = xno; then
  2250                 AC_TRY_COMPILE([
  2251                   #include <pthread.h>
  2252                 ],[
  2253                   pthread_mutexattr_t attr;
  2254                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2255                 ],[
  2256                 has_recursive_mutexes=yes
  2257                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2258                 ])
  2259             fi
  2260             AC_MSG_RESULT($has_recursive_mutexes)
  2261 
  2262             # Check to see if pthread semaphore support is missing
  2263             if test x$enable_pthread_sem = xyes; then
  2264                 AC_MSG_CHECKING(for pthread semaphores)
  2265                 have_pthread_sem=no
  2266                 AC_TRY_COMPILE([
  2267                   #include <pthread.h>
  2268                   #include <semaphore.h>
  2269                 ],[
  2270                 ],[
  2271                 have_pthread_sem=yes
  2272                 ])
  2273                 AC_MSG_RESULT($have_pthread_sem)
  2274             fi
  2275             if test x$have_pthread_sem = xyes; then
  2276                 AC_MSG_CHECKING(for sem_timedwait)
  2277                 have_sem_timedwait=no
  2278                 AC_TRY_LINK([
  2279                   #include <pthread.h>
  2280                   #include <semaphore.h>
  2281                 ],[
  2282                   sem_timedwait(NULL, NULL);
  2283                 ],[
  2284                 have_sem_timedwait=yes
  2285                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2286                 ])
  2287                 AC_MSG_RESULT($have_sem_timedwait)
  2288             fi
  2289 
  2290             AC_MSG_CHECKING(for pthread_spin_trylock)
  2291             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2292               has_pthread_spin_trylock=yes
  2293               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2294             ],[
  2295               has_pthread_spin_trylock=no
  2296             ])
  2297             AC_MSG_RESULT($has_pthread_spin_trylock)
  2298 
  2299             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2300             if test x$have_pthread_np_h = xyes; then
  2301                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2302             fi
  2303 
  2304             # Check to see if pthread naming is available
  2305             AC_MSG_CHECKING(for pthread_setname_np)
  2306             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2307               has_pthread_setname_np=yes
  2308               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2309             ],[
  2310               has_pthread_setname_np=no
  2311             ])
  2312             AC_MSG_RESULT($has_pthread_setname_np)
  2313 
  2314             AC_MSG_CHECKING(for pthread_set_name_np)
  2315             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2316               has_pthread_set_name_np=yes
  2317               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2318             ],[
  2319               has_pthread_set_name_np=no
  2320             ])
  2321             AC_MSG_RESULT($has_pthread_set_name_np)
  2322 
  2323             # Restore the compiler flags and libraries
  2324             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2325 
  2326             # Basic thread creation functions
  2327             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2328 
  2329             # Semaphores
  2330             # We can fake these with mutexes and condition variables if necessary
  2331             if test x$have_pthread_sem = xyes; then
  2332                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2333             else
  2334                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2335             fi
  2336 
  2337             # Mutexes
  2338             # We can fake these with semaphores if necessary
  2339             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2340 
  2341             # Condition variables
  2342             # We can fake these with semaphores and mutexes if necessary
  2343             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2344 
  2345             # Thread local storage
  2346             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2347 
  2348             have_threads=yes
  2349         fi
  2350     fi
  2351 }
  2352 
  2353 dnl Determine whether the compiler can produce Windows executables
  2354 CheckWINDOWS()
  2355 {
  2356     AC_MSG_CHECKING(Windows compiler)
  2357     have_win32_gcc=no
  2358     AC_TRY_COMPILE([
  2359      #include <windows.h>
  2360     ],[
  2361     ],[
  2362     have_win32_gcc=yes
  2363     ])
  2364     AC_MSG_RESULT($have_win32_gcc)
  2365     if test x$have_win32_gcc != xyes; then
  2366        AC_MSG_ERROR([
  2367 *** Your compiler ($CC) does not produce Windows executables!
  2368        ])
  2369     fi
  2370 
  2371     AC_MSG_CHECKING(Windows CE)
  2372     have_wince=no
  2373     AC_TRY_COMPILE([
  2374 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2375 #error This is not Windows CE
  2376 #endif
  2377     ],[
  2378     ],[
  2379     have_wince=yes
  2380        AC_MSG_ERROR([
  2381 *** Sorry, Windows CE is no longer supported.
  2382        ])
  2383     ])
  2384     AC_MSG_RESULT($have_wince)
  2385 
  2386     # This fixes Windows stack alignment with newer GCC
  2387     CheckStackBoundary
  2388 }
  2389 
  2390 dnl Find the DirectX includes and libraries
  2391 CheckDIRECTX()
  2392 {
  2393     AC_ARG_ENABLE(directx,
  2394 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2395                   , enable_directx=yes)
  2396     if test x$enable_directx = xyes; then
  2397         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2398         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2399         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2400         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2401         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2402         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2403 
  2404         SUMMARY_video="${SUMMARY_video} directx"
  2405         SUMMARY_audio="${SUMMARY_audio} directx"
  2406 
  2407         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2408         # FIXME:  ...so force it off for now.
  2409         case "$host" in
  2410             *-*-cygwin*)
  2411             have_dinput=false
  2412             ;;
  2413         esac
  2414     fi
  2415 }
  2416 
  2417 dnl Check for the dlfcn.h interface for dynamically loading objects
  2418 CheckDLOPEN()
  2419 {
  2420     AC_ARG_ENABLE(sdl-dlopen,
  2421 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2422                   , enable_sdl_dlopen=yes)
  2423     if test x$enable_sdl_dlopen = xyes; then
  2424         AC_MSG_CHECKING(for dlopen)
  2425         have_dlopen=no
  2426         AC_TRY_COMPILE([
  2427          #include <dlfcn.h>
  2428         ],[
  2429          void *handle = dlopen("", RTLD_NOW);
  2430          const char *loaderror = (char *) dlerror();
  2431         ],[
  2432         have_dlopen=yes
  2433         ])
  2434         AC_MSG_RESULT($have_dlopen)
  2435 
  2436         if test x$have_dlopen = xyes; then
  2437             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2438                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2439                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2440             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2441             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2442             have_loadso=yes
  2443         fi
  2444     fi
  2445 }
  2446 
  2447 dnl Check for the usbhid(3) library on *BSD
  2448 CheckUSBHID()
  2449 {
  2450     case "$host" in
  2451         *-*-*bsd*)
  2452             if test x$enable_joystick = xyes; then
  2453                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2454                 if test x$have_libusbhid = xyes; then
  2455                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2456                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2457                     USB_LIBS="$USB_LIBS -lusbhid"
  2458                 else
  2459                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2460                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2461                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2462                 fi
  2463                     
  2464                 save_CFLAGS="$CFLAGS"
  2465                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2466 
  2467                 AC_MSG_CHECKING(for usbhid)
  2468                 have_usbhid=no
  2469                 AC_TRY_COMPILE([
  2470                   #include <sys/types.h>
  2471                   #if defined(HAVE_USB_H)
  2472                   #include <usb.h>
  2473                   #endif
  2474                   #ifdef __DragonFly__
  2475                   # include <bus/usb/usb.h>
  2476                   # include <bus/usb/usbhid.h>
  2477                   #else
  2478                   # include <dev/usb/usb.h>
  2479                   # include <dev/usb/usbhid.h>
  2480                   #endif
  2481                   #if defined(HAVE_USBHID_H)
  2482                   #include <usbhid.h>
  2483                   #elif defined(HAVE_LIBUSB_H)
  2484                   #include <libusb.h>
  2485                   #elif defined(HAVE_LIBUSBHID_H)
  2486                   #include <libusbhid.h>
  2487                   #endif
  2488                 ],[
  2489                   struct report_desc *repdesc;
  2490                   struct usb_ctl_report *repbuf;
  2491                   hid_kind_t hidkind;
  2492                 ],[
  2493                 have_usbhid=yes
  2494                 ])
  2495                 AC_MSG_RESULT($have_usbhid)
  2496 
  2497                 if test x$have_usbhid = xyes; then
  2498                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2499                     have_usbhid_ucr_data=no
  2500                     AC_TRY_COMPILE([
  2501                       #include <sys/types.h>
  2502                       #if defined(HAVE_USB_H)
  2503                       #include <usb.h>
  2504                       #endif
  2505                       #ifdef __DragonFly__
  2506                       # include <bus/usb/usb.h>
  2507                       # include <bus/usb/usbhid.h>
  2508                       #else
  2509                       # include <dev/usb/usb.h>
  2510                       # include <dev/usb/usbhid.h>
  2511                       #endif
  2512                       #if defined(HAVE_USBHID_H)
  2513                       #include <usbhid.h>
  2514                       #elif defined(HAVE_LIBUSB_H)
  2515                       #include <libusb.h>
  2516                       #elif defined(HAVE_LIBUSBHID_H)
  2517                       #include <libusbhid.h>
  2518                       #endif
  2519                     ],[
  2520                       struct usb_ctl_report buf;
  2521                       if (buf.ucr_data) { }
  2522                     ],[
  2523                     have_usbhid_ucr_data=yes
  2524                     ])
  2525                     if test x$have_usbhid_ucr_data = xyes; then
  2526                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2527                     fi
  2528                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2529                     
  2530                     AC_MSG_CHECKING(for new usbhid API)
  2531                     have_usbhid_new=no
  2532                     AC_TRY_COMPILE([
  2533                       #include <sys/types.h>
  2534                       #if defined(HAVE_USB_H)
  2535                       #include <usb.h>
  2536                       #endif
  2537                       #ifdef __DragonFly__
  2538                       #include <bus/usb/usb.h>
  2539                       #include <bus/usb/usbhid.h>
  2540                       #else
  2541                       #include <dev/usb/usb.h>
  2542                       #include <dev/usb/usbhid.h>
  2543                       #endif
  2544                       #if defined(HAVE_USBHID_H)
  2545                       #include <usbhid.h>
  2546                       #elif defined(HAVE_LIBUSB_H)
  2547                       #include <libusb.h>
  2548                       #elif defined(HAVE_LIBUSBHID_H)
  2549                       #include <libusbhid.h>
  2550                       #endif
  2551                     ],[
  2552                       report_desc_t d;
  2553                       hid_start_parse(d, 1, 1);
  2554                     ],[
  2555                     have_usbhid_new=yes
  2556                     ])
  2557                     if test x$have_usbhid_new = xyes; then
  2558                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2559                     fi
  2560                     AC_MSG_RESULT($have_usbhid_new)
  2561 
  2562                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2563                     have_machine_joystick=no
  2564                     AC_TRY_COMPILE([
  2565                       #include <machine/joystick.h>
  2566                     ],[
  2567                       struct joystick t;
  2568                     ],[
  2569                     have_machine_joystick=yes
  2570                     ])
  2571                     if test x$have_machine_joystick = xyes; then
  2572                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2573                     fi
  2574                     AC_MSG_RESULT($have_machine_joystick)
  2575 
  2576                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2577                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2578                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2579                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2580                     have_joystick=yes
  2581                 fi
  2582                 CFLAGS="$save_CFLAGS"
  2583             fi
  2584         ;;
  2585     esac
  2586 }
  2587 
  2588 dnl Check for clock_gettime()
  2589 CheckClockGettime()
  2590 {
  2591     AC_ARG_ENABLE(clock_gettime,
  2592 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2593                   , enable_clock_gettime=yes)
  2594     if test x$enable_clock_gettime = xyes; then
  2595         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2596         if test x$have_clock_gettime = xyes; then
  2597             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2598             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2599         else
  2600             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2601             if test x$have_clock_gettime = xyes; then
  2602                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2603                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2604             fi
  2605         fi
  2606     fi
  2607 }
  2608 
  2609 dnl Check for a valid linux/version.h
  2610 CheckLinuxVersion()
  2611 {
  2612     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2613     if test x$have_linux_version_h = xyes; then
  2614         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2615     fi
  2616 }
  2617 
  2618 dnl Check if we want to use RPATH
  2619 CheckRPATH()
  2620 {
  2621     AC_ARG_ENABLE(rpath,
  2622 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2623                   , enable_rpath=yes)
  2624 }
  2625 
  2626 dnl Set up the configuration based on the host platform!
  2627 case "$host" in
  2628     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2629         case "$host" in
  2630             *-raspberry-linux*)
  2631                 # Raspberry Pi
  2632                 ARCH=linux
  2633                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2634                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2635                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2636                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2637                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2638 
  2639                 if test x$enable_video = xyes; then
  2640                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2641                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2642                 fi
  2643                 ;;
  2644             *-*-linux*)         ARCH=linux ;;
  2645             *-*-uclinux*)       ARCH=linux ;;
  2646             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2647             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2648             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2649             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2650             *-*-bsdi*)          ARCH=bsdi ;;
  2651             *-*-freebsd*)       ARCH=freebsd ;;
  2652             *-*-dragonfly*)     ARCH=freebsd ;;
  2653             *-*-netbsd*)        ARCH=netbsd ;;
  2654             *-*-openbsd*)       ARCH=openbsd ;;
  2655             *-*-sysv5*)         ARCH=sysv5 ;;
  2656             *-*-solaris*)       ARCH=solaris ;;
  2657             *-*-hpux*)          ARCH=hpux ;;
  2658             *-*-aix*)           ARCH=aix ;;
  2659             *-*-minix*)         ARCH=minix ;;
  2660         esac
  2661         CheckVisibilityHidden
  2662         CheckDummyVideo
  2663         CheckDiskAudio
  2664         CheckDummyAudio
  2665         CheckDLOPEN
  2666         CheckOSS
  2667         CheckALSA
  2668         CheckPulseAudio
  2669         CheckARTSC
  2670         CheckESD
  2671         CheckNAS
  2672         CheckSNDIO
  2673         CheckX11
  2674         CheckWayland
  2675         CheckMir
  2676         CheckDirectFB
  2677         CheckFusionSound
  2678         CheckOpenGLX11
  2679         CheckOpenGLESX11
  2680         CheckLibUDev
  2681         CheckDBus
  2682         CheckInputEvents
  2683         CheckInputKD
  2684         CheckTslib
  2685         CheckUSBHID
  2686         CheckPTHREAD
  2687         CheckClockGettime
  2688         CheckLinuxVersion
  2689         CheckRPATH
  2690         # Set up files for the audio library
  2691         if test x$enable_audio = xyes; then
  2692           case $ARCH in
  2693             sysv5|solaris|hpux)
  2694                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2695                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2696                 have_audio=yes
  2697             ;;
  2698             netbsd)  # Don't use this on OpenBSD, it's busted.
  2699                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2700                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2701                 have_audio=yes
  2702             ;;
  2703             aix)
  2704                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2705                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2706                 have_audio=yes
  2707             ;;
  2708           esac
  2709         fi
  2710         # Set up files for the joystick library
  2711         if test x$enable_joystick = xyes; then
  2712           case $ARCH in
  2713             linux)
  2714                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2715                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2716                 have_joystick=yes
  2717             ;;
  2718           esac
  2719         fi
  2720         # Set up files for the haptic library
  2721         if test x$enable_haptic = xyes; then
  2722            if test x$use_input_events = xyes; then
  2723              case $ARCH in
  2724                linux)
  2725                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2726                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2727                    have_haptic=yes
  2728                ;;
  2729              esac
  2730            fi
  2731         fi
  2732         # Set up files for the power library
  2733         if test x$enable_power = xyes; then
  2734              case $ARCH in
  2735                linux)
  2736                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2737                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2738                    have_power=yes
  2739                ;;
  2740              esac
  2741         fi
  2742         # Set up files for the filesystem library
  2743         if test x$enable_filesystem = xyes; then
  2744             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2745             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2746             have_filesystem=yes
  2747         fi
  2748         # Set up files for the timer library
  2749         if test x$enable_timers = xyes; then
  2750             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2751             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2752             have_timers=yes
  2753         fi
  2754         # Set up files for udev hotplugging support
  2755         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2756             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2757         fi
  2758         # Set up files for evdev input
  2759         if test x$use_input_events = xyes; then
  2760             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2761         fi       
  2762         ;;
  2763     *-*-cygwin* | *-*-mingw32*)
  2764         ARCH=win32
  2765         if test "$build" != "$host"; then # cross-compiling
  2766             # Default cross-compile location
  2767             ac_default_prefix=/usr/local/cross-tools/$host
  2768         else
  2769             # Look for the location of the tools and install there
  2770             if test "$BUILD_PREFIX" != ""; then
  2771                 ac_default_prefix=$BUILD_PREFIX
  2772             fi
  2773         fi
  2774         CheckDummyVideo
  2775         CheckDiskAudio
  2776         CheckDummyAudio
  2777         CheckWINDOWS
  2778         CheckWINDOWSGL
  2779         CheckWINDOWSGLES
  2780         CheckDIRECTX
  2781 
  2782         # Set up the core platform files
  2783         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2784 
  2785         # Set up files for the video library
  2786         if test x$enable_video = xyes; then
  2787             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2788             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2789             have_video=yes
  2790             AC_ARG_ENABLE(render-d3d,
  2791 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2792                                 , enable_render_d3d=yes)
  2793             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2794                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2795             fi
  2796             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  2797                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  2798             fi
  2799         fi
  2800         # Set up files for the audio library
  2801         if test x$enable_audio = xyes; then
  2802             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2803             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2804             if test x$have_dsound = xyes; then
  2805                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2806                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2807             fi
  2808             if test x$have_xaudio2 = xyes; then
  2809                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2810                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2811             fi
  2812             have_audio=yes
  2813         fi
  2814         # Set up files for the joystick library
  2815         if test x$enable_joystick = xyes; then
  2816             if test x$have_dinput = xyes; then
  2817                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2818                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2819                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2820             else
  2821                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2822                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2823             fi
  2824             have_joystick=yes
  2825         fi
  2826         if test x$enable_haptic = xyes; then
  2827             if test x$have_dinput = xyes; then
  2828                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2829                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2830                 have_haptic=yes
  2831             fi
  2832         fi
  2833         if test x$enable_power = xyes; then
  2834             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2835             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2836             have_power=yes
  2837         fi
  2838         if test x$enable_filesystem = xyes; then
  2839             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2840             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2841             have_filesystem=yes
  2842         fi
  2843         # Set up files for the thread library
  2844         if test x$enable_threads = xyes; then
  2845             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2846             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2847             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2848             have_threads=yes
  2849         fi
  2850         # Set up files for the timer library
  2851         if test x$enable_timers = xyes; then
  2852             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2853             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2854             have_timers=yes
  2855         fi
  2856         # Set up files for the shared object loading library
  2857         if test x$enable_loadso = xyes; then
  2858             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2859             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2860             have_loadso=yes
  2861         fi
  2862         # Set up the system libraries we need
  2863         if test -f /lib/w32api/libuuid.a; then
  2864             LIBUUID=/lib/w32api/libuuid.a
  2865         else
  2866             LIBUUID=-luuid
  2867         fi
  2868         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -XCClinker -static-libgcc"
  2869         # The Windows platform requires special setup
  2870         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2871         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2872         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2873         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2874 
  2875         # Check to see if this is a mingw or cygwin build
  2876         have_mingw32=
  2877         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2878         if test x$have_mingw32 = xyes; then
  2879             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2880         else
  2881             SDL_LIBS="-lcygwin $SDL_LIBS"
  2882         fi
  2883         ;;
  2884 
  2885     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2886     *-*-beos*)
  2887         AC_MSG_ERROR([
  2888 *** BeOS support has been removed as of SDL 2.0.2.
  2889         ])
  2890         ;;
  2891 
  2892     *-*-haiku*)
  2893         ARCH=haiku
  2894         ac_default_prefix=/boot/system
  2895         CheckDummyVideo
  2896         CheckDiskAudio
  2897         CheckDummyAudio
  2898         CheckHaikuVideo
  2899         CheckHaikuGL
  2900         CheckPTHREAD
  2901 
  2902         # Set up files for the audio library
  2903         if test x$enable_audio = xyes; then
  2904             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2905             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2906             have_audio=yes
  2907         fi
  2908         # Set up files for the joystick library
  2909         if test x$enable_joystick = xyes; then
  2910             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2911             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2912             have_joystick=yes
  2913         fi
  2914         # Set up files for the timer library
  2915         if test x$enable_timers = xyes; then
  2916             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2917             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2918             have_timers=yes
  2919         fi
  2920         # Set up files for the shared object loading library
  2921         if test x$enable_loadso = xyes; then
  2922             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2923             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2924             have_loadso=yes
  2925         fi
  2926         # Set up files for the system power library
  2927         if test x$enable_power = xyes; then
  2928             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2929             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2930             have_power=yes
  2931         fi
  2932         # Set up files for the system filesystem library
  2933         if test x$enable_filesystem = xyes; then
  2934             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2935             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2936             have_filesystem=yes
  2937         fi
  2938         # The Haiku platform requires special setup.
  2939         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2940         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2941         ;;
  2942     arm*-apple-darwin*)
  2943         # iOS - We are not writing anything to confdefs.h because you have to replace
  2944         # SDL_config.h for SDL_config_iphoneos.h anyway
  2945         ARCH=ios
  2946 
  2947         CheckVisibilityHidden
  2948         CheckDummyVideo
  2949         CheckDiskAudio
  2950         CheckDummyAudio
  2951         CheckDLOPEN
  2952         CheckCOCOA
  2953         CheckPTHREAD
  2954 
  2955 
  2956         # Set up files for the audio library
  2957         if test x$enable_audio = xyes; then
  2958             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2959             have_audio=yes
  2960         fi
  2961         # Set up files for the joystick library
  2962         if test x$enable_joystick = xyes; then
  2963             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2964             have_joystick=yes
  2965         fi
  2966         # Set up files for the haptic library
  2967         #if test x$enable_haptic = xyes; then
  2968         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2969         #    have_haptic=yes
  2970         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2971         #fi
  2972         # Set up files for the power library
  2973         if test x$enable_power = xyes; then
  2974             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2975             have_power=yes
  2976         fi
  2977         # Set up files for the filesystem library
  2978         if test x$enable_filesystem = xyes; then
  2979             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2980             have_filesystem=yes
  2981         fi
  2982         # Set up files for the timer library
  2983         if test x$enable_timers = xyes; then
  2984             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2985             have_timers=yes
  2986         fi
  2987         # Set up additional files for the file library
  2988         if test x$enable_file = xyes; then
  2989             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2990         fi
  2991         # The iOS platform requires special setup.
  2992         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2993         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2994         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2995         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2996         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2997         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2998         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2999         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3000         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3001         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3002         ;;
  3003     *-*-darwin* )
  3004         # This could be either full "Mac OS X", or plain "Darwin" which is
  3005         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3006         # Next line is broken, and a few files below require Mac OS X (full)
  3007         ARCH=macosx
  3008 
  3009         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3010         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3011         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3012 
  3013         CheckVisibilityHidden
  3014         CheckDummyVideo
  3015         CheckDiskAudio
  3016         CheckDummyAudio
  3017         CheckDLOPEN
  3018         CheckCOCOA
  3019         CheckX11
  3020         CheckMacGL
  3021         CheckOpenGLX11
  3022         CheckPTHREAD
  3023 
  3024         # Set up files for the audio library
  3025         if test x$enable_audio = xyes; then
  3026             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3027             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3028             have_audio=yes
  3029         fi
  3030         # Set up files for the joystick library
  3031         if test x$enable_joystick = xyes; then
  3032             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3033             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3034             have_joystick=yes
  3035         fi
  3036         # Set up files for the haptic library
  3037         if test x$enable_haptic = xyes; then
  3038             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3039             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3040             have_haptic=yes
  3041             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3042         fi
  3043         # Set up files for the power library
  3044         if test x$enable_power = xyes; then
  3045             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3046             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3047             have_power=yes
  3048         fi
  3049         # Set up files for the filesystem library
  3050         if test x$enable_filesystem = xyes; then
  3051             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3052             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3053             have_filesystem=yes
  3054         fi
  3055         # Set up files for the timer library
  3056         if test x$enable_timers = xyes; then
  3057             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3058             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3059             have_timers=yes
  3060         fi
  3061         # Set up additional files for the file library
  3062         if test x$enable_file = xyes; then
  3063             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3064         fi
  3065         # The Mac OS X platform requires special setup.
  3066         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3067         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3068         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3069         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3070         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3071         # If audio is used, add the AudioUnit framework
  3072         if test x$enable_audio = xyes; then
  3073             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3074         fi
  3075         ;;
  3076     *)
  3077         AC_MSG_ERROR([
  3078 *** Unsupported host:  Please add to configure.in
  3079         ])
  3080         ;;
  3081 esac
  3082 
  3083 dnl Do this on all platforms, after everything else.
  3084 CheckWarnAll
  3085 
  3086 # Verify that we have all the platform specific files we need
  3087 
  3088 if test x$have_joystick != xyes; then
  3089     if test x$enable_joystick = xyes; then
  3090         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3091     fi
  3092     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3093 fi
  3094 if test x$have_haptic != xyes; then
  3095     if test x$enable_haptic = xyes; then
  3096         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3097     fi
  3098     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3099 fi
  3100 if test x$have_threads != xyes; then
  3101     if test x$enable_threads = xyes; then
  3102         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3103     fi
  3104     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3105 fi
  3106 if test x$have_timers != xyes; then
  3107     if test x$enable_timers = xyes; then
  3108         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3109     fi
  3110     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3111 fi
  3112 if test x$have_filesystem != xyes; then
  3113     if test x$enable_filesystem = xyes; then
  3114         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3115     fi
  3116     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3117 fi
  3118 if test x$have_loadso != xyes; then
  3119     if test x$enable_loadso = xyes; then
  3120         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3121     fi
  3122     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3123 fi
  3124 if test x$SDLMAIN_SOURCES = x; then
  3125     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3126 fi
  3127 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3128 
  3129 OBJECTS=`echo $SOURCES`
  3130 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3131 for EXT in asm cc m c S; do
  3132     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3133     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3134 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3135 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3136 done
  3137 
  3138 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3139 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3140 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3141 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3142 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3143 	\\$(WINDRES) \\$< \\$@,g"`
  3144 
  3145 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3146 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3147 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3148 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3149 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3150 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3151 
  3152 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3153 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3154 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3155 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3156 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3157 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3158 
  3159 # Set runtime shared library paths as needed
  3160 
  3161 if test "x$enable_rpath" = "xyes"; then
  3162   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3163     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3164   fi
  3165   if test $ARCH = solaris; then
  3166     SDL_RLD_FLAGS="-R\${libdir}"
  3167   fi
  3168 else
  3169   SDL_RLD_FLAGS=""
  3170 fi
  3171 
  3172 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3173 
  3174 dnl Expand the cflags and libraries needed by apps using SDL
  3175 AC_SUBST(SDL_CFLAGS)
  3176 AC_SUBST(SDL_LIBS)
  3177 AC_SUBST(SDL_STATIC_LIBS)
  3178 AC_SUBST(SDL_RLD_FLAGS)
  3179 if test x$enable_shared = xyes; then
  3180     ENABLE_SHARED_TRUE=
  3181     ENABLE_SHARED_FALSE="#"
  3182 else
  3183     ENABLE_SHARED_TRUE="#"
  3184     ENABLE_SHARED_FALSE=
  3185 fi
  3186 if test x$enable_static = xyes; then
  3187     ENABLE_STATIC_TRUE=
  3188     ENABLE_STATIC_FALSE="#"
  3189 else
  3190     ENABLE_STATIC_TRUE="#"
  3191     ENABLE_STATIC_FALSE=
  3192 fi
  3193 AC_SUBST(ENABLE_SHARED_TRUE)
  3194 AC_SUBST(ENABLE_SHARED_FALSE)
  3195 AC_SUBST(ENABLE_STATIC_TRUE)
  3196 AC_SUBST(ENABLE_STATIC_FALSE)
  3197 
  3198 dnl Expand the sources and objects needed to build the library
  3199 AC_SUBST(ac_aux_dir)
  3200 AC_SUBST(INCLUDE)
  3201 AC_SUBST(OBJECTS)
  3202 AC_SUBST(VERSION_OBJECTS)
  3203 AC_SUBST(SDLMAIN_OBJECTS)
  3204 AC_SUBST(SDLTEST_OBJECTS)
  3205 AC_SUBST(BUILD_CFLAGS)
  3206 AC_SUBST(EXTRA_CFLAGS)
  3207 AC_SUBST(BUILD_LDFLAGS)
  3208 AC_SUBST(EXTRA_LDFLAGS)
  3209 AC_SUBST(WINDRES)
  3210 
  3211 cat >Makefile.rules <<__EOF__
  3212 
  3213 # Build rules for objects
  3214 -include \$(OBJECTS:.lo=.d)
  3215 
  3216 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3217 $srcdir/src/SDL.c: update-revision
  3218 $DEPENDS
  3219 $VERSION_DEPENDS
  3220 $SDLMAIN_DEPENDS
  3221 $SDLTEST_DEPENDS
  3222 __EOF__
  3223 
  3224 AC_CONFIG_FILES([
  3225     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3226 ])
  3227 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3228 
  3229 SUMMARY="SDL2 Configure Summary:\n"
  3230 if test x$enable_shared = xyes; then
  3231     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3232 fi
  3233 if test x$enable_static = xyes; then
  3234     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3235 fi
  3236 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3237 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3238 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3239 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3240 if test x$have_x = xyes; then
  3241     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3242 fi
  3243 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3244 if test x$enable_libudev = xyes; then
  3245     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3246 else
  3247     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3248 fi
  3249 if test x$have_dbus_dbus_h_hdr = xyes; then
  3250     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3251 else
  3252     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3253 fi
  3254 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3255 
  3256 AC_OUTPUT