configure.in
author Ryan C. Gordon <icculus@icculus.org>
Sat, 08 Mar 2014 15:32:12 -0500
changeset 8299 ee0d04aa70da
parent 8282 484d2404c472
child 8303 7ee46ffa9c24
permissions -rw-r--r--
Enable Wayland and Mir in configure/cmake scripts, now that 2.0.2 has shipped.
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=2
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=2
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(altivec,
   633 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   634                   , enable_altivec=yes)
   635     if test x$enable_altivec = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_altivec=no
   638         have_altivec_h_hdr=no
   639         altivec_CFLAGS="-maltivec"
   640         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   641 
   642         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   643         AC_TRY_COMPILE([
   644         #include <altivec.h>
   645         vector unsigned int vzero() {
   646             return vec_splat_u32(0);
   647         }
   648         ],[
   649         ],[
   650         have_gcc_altivec=yes
   651         have_altivec_h_hdr=yes
   652         ])
   653         AC_MSG_RESULT($have_gcc_altivec)
   654 
   655         if test x$have_gcc_altivec = xno; then
   656             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   657             AC_TRY_COMPILE([
   658             vector unsigned int vzero() {
   659                 return vec_splat_u32(0);
   660             }
   661             ],[
   662             ],[
   663             have_gcc_altivec=yes
   664             ])
   665             AC_MSG_RESULT($have_gcc_altivec)
   666         fi
   667 
   668         if test x$have_gcc_altivec = xno; then
   669             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   670             altivec_CFLAGS="-faltivec"
   671             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   672             AC_TRY_COMPILE([
   673             #include <altivec.h>
   674             vector unsigned int vzero() {
   675                 return vec_splat_u32(0);
   676             }
   677             ],[
   678             ],[
   679             have_gcc_altivec=yes
   680             have_altivec_h_hdr=yes
   681             ])
   682             AC_MSG_RESULT($have_gcc_altivec)
   683         fi
   684 
   685         if test x$have_gcc_altivec = xno; then
   686             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   687             AC_TRY_COMPILE([
   688             vector unsigned int vzero() {
   689                 return vec_splat_u32(0);
   690             }
   691             ],[
   692             ],[
   693             have_gcc_altivec=yes
   694             ])
   695             AC_MSG_RESULT($have_gcc_altivec)
   696         fi
   697         CFLAGS="$save_CFLAGS"
   698 
   699         if test x$have_gcc_altivec = xyes; then
   700             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   701             if test x$have_altivec_h_hdr = xyes; then
   702               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   703             fi
   704             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   705             SUMMARY_math="${SUMMARY_math} altivec"
   706         fi
   707     fi
   708 fi
   709 
   710 dnl See if the OSS audio interface is supported
   711 CheckOSS()
   712 {
   713     AC_ARG_ENABLE(oss,
   714 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   715                   , enable_oss=maybe)
   716 
   717     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   718     #  use sndio instead. So on there, we default to disabled. You can force
   719     #  it on if you really want, though.
   720     if test x$enable_oss = xmaybe; then
   721         enable_oss=yes
   722         case "$host" in
   723             *-*-openbsd*)
   724                 enable_oss=no;;
   725         esac
   726     fi
   727 
   728     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   729         AC_MSG_CHECKING(for OSS audio support)
   730         have_oss=no
   731         if test x$have_oss != xyes; then
   732             AC_TRY_COMPILE([
   733               #include <sys/soundcard.h>
   734             ],[
   735               int arg = SNDCTL_DSP_SETFRAGMENT;
   736             ],[
   737             have_oss=yes
   738             ])
   739         fi
   740         if test x$have_oss != xyes; then
   741             AC_TRY_COMPILE([
   742               #include <soundcard.h>
   743             ],[
   744               int arg = SNDCTL_DSP_SETFRAGMENT;
   745             ],[
   746             have_oss=yes
   747             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   748             ])
   749         fi
   750         AC_MSG_RESULT($have_oss)
   751         if test x$have_oss = xyes; then
   752             SUMMARY_audio="${SUMMARY_audio} oss"
   753             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   754             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   755             have_audio=yes
   756 
   757             # We may need to link with ossaudio emulation library
   758             case "$host" in
   759                 *-*-openbsd*|*-*-netbsd*)
   760                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   761             esac
   762         fi
   763     fi
   764 }
   765 
   766 dnl See if the ALSA audio interface is supported
   767 CheckALSA()
   768 {
   769     AC_ARG_ENABLE(alsa,
   770 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   771                   , enable_alsa=yes)
   772     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   773         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   774         # Restore all flags from before the ALSA detection runs
   775         CFLAGS="$alsa_save_CFLAGS"
   776         LDFLAGS="$alsa_save_LDFLAGS"
   777         LIBS="$alsa_save_LIBS"
   778         if test x$have_alsa = xyes; then
   779             AC_ARG_ENABLE(alsa-shared,
   780 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   781                           , enable_alsa_shared=yes)
   782             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   783 
   784             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   785             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   786             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   787             if test x$have_loadso != xyes && \
   788                test x$enable_alsa_shared = xyes; then
   789                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   790             fi
   791             if test x$have_loadso = xyes && \
   792                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   793                 echo "-- dynamic libasound -> $alsa_lib"
   794                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   795                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   796             else
   797                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   798                 SUMMARY_audio="${SUMMARY_audio} alsa"
   799             fi
   800             have_audio=yes
   801         fi
   802     fi
   803 }
   804 
   805 dnl Find the ESD includes and libraries
   806 CheckESD()
   807 {
   808     AC_ARG_ENABLE(esd,
   809 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   810                   , enable_esd=yes)
   811     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   812         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   813         if test x$have_esd = xyes; then
   814             AC_ARG_ENABLE(esd-shared,
   815 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   816                           , enable_esd_shared=yes)
   817             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   818 
   819             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   820             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   821             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   822             if test x$have_loadso != xyes && \
   823                test x$enable_esd_shared = xyes; then
   824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   825             fi
   826             if test x$have_loadso = xyes && \
   827                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   828                 echo "-- dynamic libesd -> $esd_lib"
   829                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   830                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   831             else
   832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   833                 SUMMARY_audio="${SUMMARY_audio} esd"
   834             fi
   835             have_audio=yes
   836         fi
   837     fi
   838 }
   839 
   840 dnl Find PulseAudio
   841 CheckPulseAudio()
   842 {
   843     AC_ARG_ENABLE(pulseaudio,
   844 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   845                   , enable_pulseaudio=yes)
   846     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   847         audio_pulseaudio=no
   848 
   849         PULSEAUDIO_REQUIRED_VERSION=0.9
   850 
   851         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   852         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   853         if test x$PKG_CONFIG != xno; then
   854         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   855                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   856                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   857                 audio_pulseaudio=yes
   858             fi
   859         fi
   860         AC_MSG_RESULT($audio_pulseaudio)
   861 
   862         if test x$audio_pulseaudio = xyes; then
   863             AC_ARG_ENABLE(pulseaudio-shared,
   864 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   865                           , enable_pulseaudio_shared=yes)
   866             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   867 
   868             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   869             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   870             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   871             if test x$have_loadso != xyes && \
   872                test x$enable_pulseaudio_shared = xyes; then
   873                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   874             fi
   875             if test x$have_loadso = xyes && \
   876                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   877                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   878                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   879                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   880 
   881                 case "$host" in
   882                     # On Solaris, pulseaudio must be linked deferred explicitly
   883                     # to prevent undefined symbol failures.
   884                     *-*-solaris*)
   885                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   886                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   887                 esac
   888             else
   889                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   890                 SUMMARY_audio="${SUMMARY_audio} pulse"
   891             fi
   892             have_audio=yes
   893         fi
   894     fi
   895 }
   896 
   897 CheckARTSC()
   898 {
   899     AC_ARG_ENABLE(arts,
   900 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   901                   , enable_arts=yes)
   902     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   903         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   904         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   905             : # arts isn't installed
   906         else
   907             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   908             ARTS_LIBS=`$ARTSCONFIG --libs`
   909             AC_MSG_CHECKING(for aRts development environment)
   910             audio_arts=no
   911             save_CFLAGS="$CFLAGS"
   912             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   913             AC_TRY_COMPILE([
   914              #include <artsc.h>
   915             ],[
   916              arts_stream_t stream;
   917             ],[
   918             audio_arts=yes
   919             ])
   920             CFLAGS="$save_CFLAGS"
   921             AC_MSG_RESULT($audio_arts)
   922             if test x$audio_arts = xyes; then
   923                 AC_ARG_ENABLE(arts-shared,
   924 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   925                               , enable_arts_shared=yes)
   926                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   927 
   928                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   929                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   930                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   931                 if test x$have_loadso != xyes && \
   932                    test x$enable_arts_shared = xyes; then
   933                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   934                 fi
   935                 if test x$have_loadso = xyes && \
   936                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   937                     echo "-- dynamic libartsc -> $arts_lib"
   938                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   939                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
   940                 else
   941                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   942                     SUMMARY_audio="${SUMMARY_audio} arts"
   943                 fi
   944                 have_audio=yes
   945             fi
   946         fi
   947     fi
   948 }
   949 
   950 dnl See if the NAS audio interface is supported
   951 CheckNAS()
   952 {
   953     AC_ARG_ENABLE(nas,
   954 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   955                   , enable_nas=yes)
   956     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   957         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   958         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   959 
   960         AC_MSG_CHECKING(for NAS audio support)
   961         have_nas=no
   962 
   963         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   964             have_nas=yes
   965             NAS_LIBS="-laudio"
   966 
   967         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   968             have_nas=yes
   969             NAS_CFLAGS="-I/usr/X11R6/include/"
   970             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   971 
   972         fi
   973 
   974         AC_MSG_RESULT($have_nas)
   975 
   976         if test x$have_nas = xyes; then
   977             AC_ARG_ENABLE(nas-shared,
   978 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   979                           , enable_nas_shared=yes)
   980             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   981 
   982             if test x$have_loadso != xyes && \
   983                test x$enable_nas_shared = xyes; then
   984                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   985             fi
   986             if test x$have_loadso = xyes && \
   987                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   988                 echo "-- dynamic libaudio -> $nas_lib"
   989                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   990                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
   991             else
   992                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   993                 SUMMARY_audio="${SUMMARY_audio} nas"
   994             fi
   995 
   996             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   997             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   998             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   999             have_audio=yes
  1000         fi
  1001     fi
  1002 }
  1003 
  1004 dnl See if the sndio audio interface is supported
  1005 CheckSNDIO()
  1006 {
  1007     AC_ARG_ENABLE(sndio,
  1008 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1009                   , enable_sndio=yes)
  1010     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1011         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1012         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1013 
  1014         AC_MSG_CHECKING(for sndio audio support)
  1015         have_sndio=no
  1016 
  1017         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1018             have_sndio=yes
  1019             SNDIO_LIBS="-lsndio"
  1020         fi
  1021 
  1022         AC_MSG_RESULT($have_sndio)
  1023 
  1024         if test x$have_sndio = xyes; then
  1025             AC_ARG_ENABLE(sndio-shared,
  1026 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1027                           , enable_sndio_shared=yes)
  1028             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1029 
  1030             if test x$have_loadso != xyes && \
  1031                test x$enable_sndio_shared = xyes; then
  1032                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1033             fi
  1034             if test x$have_loadso = xyes && \
  1035                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1036                 echo "-- dynamic libsndio -> $sndio_lib"
  1037                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1038                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1039             else
  1040                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1041                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1042             fi
  1043 
  1044             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1045             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1046             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1047             have_audio=yes
  1048         fi
  1049     fi
  1050 }
  1051 
  1052 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1053 CheckDiskAudio()
  1054 {
  1055     AC_ARG_ENABLE(diskaudio,
  1056 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1057                   , enable_diskaudio=yes)
  1058     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1059         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1060         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1061         SUMMARY_audio="${SUMMARY_audio} disk"
  1062     fi
  1063 }
  1064 
  1065 dnl rcg03142006 See if the user wants the dummy audio driver...
  1066 CheckDummyAudio()
  1067 {
  1068     AC_ARG_ENABLE(dummyaudio,
  1069 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1070                   , enable_dummyaudio=yes)
  1071     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1072         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1073         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1074         SUMMARY_audio="${SUMMARY_audio} dummy"
  1075     fi
  1076 }
  1077 
  1078 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1079 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1080 CheckVisibilityHidden()
  1081 {
  1082     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1083     have_gcc_fvisibility=no
  1084 
  1085     visibility_CFLAGS="-fvisibility=hidden"
  1086     save_CFLAGS="$CFLAGS"
  1087     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1088     AC_TRY_COMPILE([
  1089     #if !defined(__GNUC__) || __GNUC__ < 4
  1090     #error SDL only uses visibility attributes in GCC 4 or newer
  1091     #endif
  1092     ],[
  1093     ],[
  1094     have_gcc_fvisibility=yes
  1095     ])
  1096     AC_MSG_RESULT($have_gcc_fvisibility)
  1097     CFLAGS="$save_CFLAGS"
  1098 
  1099     if test x$have_gcc_fvisibility = xyes; then
  1100         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1101     fi
  1102 }
  1103 
  1104 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1105 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1106 CheckStackBoundary()
  1107 {
  1108     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1109     have_gcc_preferred_stack_boundary=no
  1110 
  1111     save_CFLAGS="$CFLAGS"
  1112     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1113     AC_TRY_COMPILE([
  1114     int x = 0;
  1115     ],[
  1116     ],[
  1117     have_gcc_preferred_stack_boundary=yes
  1118     ])
  1119     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1120     CFLAGS="$save_CFLAGS"
  1121 
  1122     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1123         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1124     fi
  1125 }
  1126 
  1127 dnl See if GCC's -Wall is supported.
  1128 CheckWarnAll()
  1129 {
  1130     AC_MSG_CHECKING(for GCC -Wall option)
  1131     have_gcc_Wall=no
  1132 
  1133     save_CFLAGS="$CFLAGS"
  1134     CFLAGS="$save_CFLAGS -Wall"
  1135     AC_TRY_COMPILE([
  1136     int x = 0;
  1137     ],[
  1138     ],[
  1139     have_gcc_Wall=yes
  1140     ])
  1141     AC_MSG_RESULT($have_gcc_Wall)
  1142     CFLAGS="$save_CFLAGS"
  1143 
  1144     if test x$have_gcc_Wall = xyes; then
  1145         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1146 
  1147         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1148         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1149         need_gcc_Wno_multichar=no
  1150         case "$host" in
  1151             *-*-haiku*)
  1152                 need_gcc_Wno_multichar=yes
  1153                 ;;
  1154         esac
  1155         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1156         if test x$need_gcc_Wno_multichar = xyes; then
  1157             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1158         fi
  1159     fi
  1160 }
  1161 
  1162 dnl Check for Wayland
  1163 CheckWayland()
  1164 {
  1165     AC_ARG_ENABLE(video-wayland,
  1166 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1167                   ,enable_video_wayland=yes)
  1168 
  1169     AC_ARG_ENABLE(video-wayland-qt-touch,
  1170 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1171                   ,enable_video_wayland_qt_touch=yes)
  1172 
  1173     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1174         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1175         AC_MSG_CHECKING(for Wayland support)
  1176         video_wayland=no
  1177         if test x$PKG_CONFIG != xno; then
  1178             if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
  1179                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1180                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1181                 video_wayland=yes
  1182             fi
  1183         fi
  1184         AC_MSG_RESULT($video_wayland)
  1185 
  1186         if test x$video_wayland = xyes; then
  1187             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1188             if test x$enable_video_wayland_qt_touch = xyes; then
  1189                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1190             fi
  1191             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1192             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
  1193             AC_ARG_ENABLE(wayland-shared,
  1194 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1195                           , enable_wayland_shared=maybe)
  1196 
  1197             dnl FIXME: Do BSD and OS X need special cases?
  1198             case "$host" in
  1199                 *)
  1200                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1201                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1202                     if test x$wayland_egl_lib = x; then
  1203                         dnl This works in Ubuntu 13.10, maybe others
  1204                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1205                     fi
  1206                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1207                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1208                     ;;
  1209             esac
  1210 
  1211             if test x$enable_wayland_shared = xmaybe; then
  1212                 enable_wayland_shared=yes
  1213             fi
  1214             if test x$have_loadso != xyes && \
  1215                test x$enable_wayland_shared = xyes; then
  1216                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1217                 enable_wayland_shared=no
  1218             fi
  1219             if test x$have_loadso = xyes && \
  1220                test x$enable_wayland_shared = xyes && \
  1221                test x$wayland_client_lib != x && \
  1222                test x$wayland_egl_lib != x && \
  1223                test x$wayland_cursor_lib != x && \
  1224                test x$xkbcommon_lib != x; then
  1225                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1226                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1227                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1228                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1229                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1230                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1231                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1232                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1233                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1234             else
  1235                 enable_wayland_shared=no
  1236                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1237                 SUMMARY_video="${SUMMARY_video} wayland"
  1238             fi
  1239             have_video=yes
  1240         fi
  1241     fi
  1242 }
  1243 
  1244 dnl Check for Mir
  1245 CheckMir()
  1246 {
  1247     AC_ARG_ENABLE(video-mir,
  1248 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1249                   ,enable_video_mir=yes)
  1250 
  1251     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1252         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1253         AC_MSG_CHECKING(for Mir support)
  1254         video_mir=no
  1255         if test x$PKG_CONFIG != xno; then
  1256             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1257                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1258                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1259                 video_mir=yes
  1260             fi
  1261         fi
  1262         AC_MSG_RESULT($video_mir)
  1263 
  1264         if test x$video_mir = xyes; then
  1265             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1266             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1267             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1268             AC_ARG_ENABLE(mir-shared,
  1269 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1270                           , enable_mir_shared=maybe)
  1271 
  1272             dnl FIXME: Do BSD and OS X need special cases?
  1273             case "$host" in
  1274                 *)
  1275                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1276                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1277                     ;;
  1278             esac
  1279 
  1280             if test x$enable_mir_shared = xmaybe; then
  1281                 enable_mir_shared=yes
  1282             fi
  1283             if test x$have_loadso != xyes && \
  1284                test x$enable_mir_shared = xyes; then
  1285                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1286                 enable_mir_shared=no
  1287             fi
  1288             if test x$have_loadso = xyes && \
  1289                test x$enable_mir_shared = xyes && \
  1290                test x$mirclient_lib != x && \
  1291                test x$xkbcommon_lib != x; then
  1292                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1293                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1294                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1295                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1296                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1297             else
  1298                 enable_mir_shared=no
  1299                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1300                 SUMMARY_video="${SUMMARY_video} mir"
  1301             fi
  1302             have_video=yes
  1303         fi
  1304     fi
  1305 }
  1306 
  1307 
  1308 dnl Find the X11 include and library directories
  1309 CheckX11()
  1310 {
  1311 
  1312 
  1313     AC_ARG_ENABLE(video-x11,
  1314 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1315                   , enable_video_x11=yes)
  1316     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1317         case "$host" in
  1318             *-*-darwin*)
  1319                 # This isn't necessary for X11, but fixes GLX detection
  1320                 if test "x$x_includes" = xNONE && \
  1321                    test "x$x_libraries" = xNONE && \
  1322                    test -d /usr/X11R6/include && \
  1323                    test -d /usr/X11R6/lib; then
  1324                     x_includes="/usr/X11R6/include"
  1325                     x_libraries="/usr/X11R6/lib"
  1326                 fi
  1327                 ;;
  1328         esac
  1329         AC_PATH_X
  1330         AC_PATH_XTRA
  1331         if test x$have_x = xyes; then
  1332             AC_ARG_ENABLE(x11-shared,
  1333 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1334                           , enable_x11_shared=maybe)
  1335 
  1336             case "$host" in
  1337                 *-*-darwin*)
  1338                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1339                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1340                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1341                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1342                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1343                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1344                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1345                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1346                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1347                     ;;
  1348                 *-*-openbsd*)
  1349                     x11_lib='libX11.so'
  1350                     x11ext_lib='libXext.so'
  1351                     xcursor_lib='libXcursor.so'
  1352                     xinerama_lib='libXinerama.so'
  1353                     xinput_lib='libXi.so'
  1354                     xrandr_lib='libXrandr.so'
  1355                     xrender_lib='libXrender.so'
  1356                     xss_lib='libXss.so'
  1357                     xvidmode_lib='libXxf86vm.so'
  1358                     ;;
  1359                 *)
  1360                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1361                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1362                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1363                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1364                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1365                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1366                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1367                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1368                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1369                     ;;
  1370             esac
  1371 
  1372             if test x$ac_cv_func_shmat != xyes; then
  1373                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1374             fi
  1375             CFLAGS="$CFLAGS $X_CFLAGS"
  1376             LDFLAGS="$LDFLAGS $X_LIBS"
  1377 
  1378             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1379                             have_xext_h_hdr=yes,
  1380                             have_xext_h_hdr=no,
  1381                             [#include <X11/Xlib.h>
  1382                              #include <X11/Xproto.h>
  1383                             ])
  1384             if test x$have_xext_h_hdr != xyes; then
  1385                AC_MSG_ERROR([
  1386 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1387                ])
  1388             fi
  1389 
  1390             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1391             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1392             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1393 
  1394             # Needed so SDL applications can include SDL_syswm.h
  1395             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1396 
  1397             if test x$enable_x11_shared = xmaybe; then
  1398                 enable_x11_shared=yes
  1399             fi
  1400             if test x$have_loadso != xyes && \
  1401                test x$enable_x11_shared = xyes; then
  1402                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1403                 enable_x11_shared=no
  1404             fi
  1405             if test x$have_loadso = xyes && \
  1406                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1407                 echo "-- dynamic libX11 -> $x11_lib"
  1408                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1409                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1410                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1411                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1412             else
  1413                 enable_x11_shared=no
  1414                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1415                 SUMMARY_video="${SUMMARY_video} x11"
  1416             fi
  1417             have_video=yes
  1418 
  1419             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1420             have_const_param_XextAddDisplay=no
  1421             AC_TRY_COMPILE([
  1422               #include <X11/Xlib.h>
  1423               #include <X11/Xproto.h>
  1424               #include <X11/extensions/Xext.h>
  1425               #include <X11/extensions/extutil.h>
  1426               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1427             ],[
  1428             ],[
  1429             have_const_param_XextAddDisplay=yes
  1430             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1431             ])
  1432             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1433 
  1434             AC_MSG_CHECKING(for const parameter to _XData32)
  1435 	    have_const_param_xdata32=no
  1436 	    AC_TRY_COMPILE([
  1437 	      #include <X11/Xlibint.h>
  1438 	      extern int _XData32(Display *dpy,register _Xconst long *data,unsigned len);
  1439 	    ],[
  1440 	    ],[
  1441 	    have_const_param_xdata32=yes
  1442 	    AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XDATA32)
  1443 	    ])
  1444 	    AC_MSG_RESULT($have_const_param_xdata32)
  1445 
  1446             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1447             AC_MSG_CHECKING([for XGenericEvent])
  1448             have_XGenericEvent=no
  1449             AC_TRY_COMPILE([
  1450               	#include <X11/Xlib.h>
  1451             ],[
  1452 Display *display;
  1453 XEvent event;
  1454 XGenericEventCookie *cookie = &event.xcookie;
  1455 XNextEvent(display, &event);
  1456 XGetEventData(display, cookie);
  1457 XFreeEventData(display, cookie);
  1458             ],[
  1459                 have_XGenericEvent=yes
  1460                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS)
  1461             ])
  1462             AC_MSG_RESULT($have_XGenericEvent)
  1463 
  1464             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1465 
  1466             AC_ARG_ENABLE(video-x11-xcursor,
  1467 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1468                             , enable_video_x11_xcursor=yes)
  1469             if test x$enable_video_x11_xcursor = xyes; then
  1470                 definitely_enable_video_x11_xcursor=no
  1471                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1472                                 have_xcursor_h_hdr=yes,
  1473                                 have_xcursor_h_hdr=no,
  1474                                 [#include <X11/Xlib.h>
  1475                                 ])
  1476                 if test x$have_xcursor_h_hdr = xyes; then
  1477                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1478                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1479                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1480                         definitely_enable_video_x11_xcursor=yes
  1481                     else
  1482                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1483                         if test x$have_xcursor_lib = xyes ; then
  1484                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1485                             definitely_enable_video_x11_xcursor=yes
  1486                         fi
  1487                     fi
  1488                 fi
  1489             fi
  1490             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1491                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1492                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1493             fi
  1494             AC_ARG_ENABLE(video-x11-xinerama,
  1495 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1496                             , enable_video_x11_xinerama=yes)
  1497             if test x$enable_video_x11_xinerama = xyes; then
  1498                 definitely_enable_video_x11_xinerama=no
  1499                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1500                                 have_xinerama_h_hdr=yes,
  1501                                 have_xinerama_h_hdr=no,
  1502                                 [#include <X11/Xlib.h>
  1503                                 ])
  1504                 if test x$have_xinerama_h_hdr = xyes; then
  1505                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1506                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1507                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1508                         definitely_enable_video_x11_xinerama=yes
  1509                     else
  1510                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1511                         if test x$have_xinerama_lib = xyes ; then
  1512                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1513                             definitely_enable_video_x11_xinerama=yes
  1514                         fi
  1515                     fi
  1516                 fi
  1517             fi
  1518             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1519                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1520                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1521             fi
  1522             AC_ARG_ENABLE(video-x11-xinput,
  1523 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1524                             , enable_video_x11_xinput=yes)
  1525             if test x$enable_video_x11_xinput = xyes; then
  1526                 definitely_enable_video_x11_xinput=no
  1527                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1528                                 have_xinput_h_hdr=yes,
  1529                                 have_xinput_h_hdr=no,
  1530                                 [#include <X11/Xlib.h>
  1531                                 ])
  1532                 if test x$have_xinput_h_hdr = xyes; then
  1533                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1534                         echo "-- dynamic libXi -> $xinput_lib"
  1535                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1536                         definitely_enable_video_x11_xinput=yes
  1537                     else
  1538                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1539                         if test x$have_xinput_lib = xyes ; then
  1540                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1541                             definitely_enable_video_x11_xinput=yes
  1542                         fi
  1543                     fi
  1544                 fi
  1545             fi
  1546             if test x$definitely_enable_video_x11_xinput = xyes; then
  1547                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1548                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1549                 AC_MSG_CHECKING(for xinput2 multitouch)
  1550             	have_xinput2_multitouch=no
  1551             	AC_TRY_COMPILE([
  1552               		#include <X11/Xlib.h>
  1553              		#include <X11/Xproto.h>
  1554 			#include <X11/extensions/XInput2.h>
  1555             	],[
  1556 int event_type = XI_TouchBegin;
  1557 XITouchClassInfo *t;
  1558             	],[
  1559             	have_xinput2_multitouch=yes
  1560             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1561                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1562             	])
  1563             	AC_MSG_RESULT($have_xinput2_multitouch)
  1564             fi
  1565             AC_ARG_ENABLE(video-x11-xrandr,
  1566 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1567                             , enable_video_x11_xrandr=yes)
  1568             if test x$enable_video_x11_xrandr = xyes; then
  1569                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1570                 definitely_enable_video_x11_xrandr=no
  1571                 have_xrandr_h_hdr=no
  1572                 AC_TRY_COMPILE([
  1573                 #include <X11/Xlib.h>
  1574                 #include <X11/extensions/Xrandr.h>
  1575                 ],[
  1576                 XRRScreenResources *res = NULL;
  1577                 ],[
  1578                 have_xrandr_h_hdr=yes
  1579                 ])
  1580                 if test x$have_xrandr_h_hdr = xyes; then
  1581                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1582                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1583                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1584                         definitely_enable_video_x11_xrandr=yes
  1585                     else
  1586                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1587                         if test x$have_xrandr_lib = xyes ; then
  1588                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1589                             definitely_enable_video_x11_xrandr=yes
  1590                         fi
  1591                     fi
  1592                 fi
  1593             fi
  1594             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1595                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1596                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1597             fi
  1598             AC_ARG_ENABLE(video-x11-scrnsaver,
  1599 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1600                             , enable_video_x11_scrnsaver=yes)
  1601             if test x$enable_video_x11_scrnsaver = xyes; then
  1602                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1603                                 have_scrnsaver_h_hdr=yes,
  1604                                 have_scrnsaver_h_hdr=no,
  1605                                 [#include <X11/Xlib.h>
  1606                                 ])
  1607                 if test x$have_scrnsaver_h_hdr = xyes; then
  1608                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1609                         echo "-- dynamic libXss -> $xss_lib"
  1610                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1611                         definitely_enable_video_x11_scrnsaver=yes
  1612                     else
  1613                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1614                         if test x$have_xss_lib = xyes ; then
  1615                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1616                             definitely_enable_video_x11_scrnsaver=yes
  1617                         fi
  1618                     fi
  1619                 fi
  1620             fi
  1621             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1622                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1623                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1624             fi
  1625             AC_ARG_ENABLE(video-x11-xshape,
  1626 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1627                             , enable_video_x11_xshape=yes)
  1628             if test x$enable_video_x11_xshape = xyes; then
  1629                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1630                                 have_shape_h_hdr=yes,
  1631                                 have_shape_h_hdr=no,
  1632                                 [#include <X11/Xlib.h>
  1633                                 ])
  1634                 if test x$have_shape_h_hdr = xyes; then
  1635                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1636                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1637                 fi
  1638             fi
  1639             AC_ARG_ENABLE(video-x11-vm,
  1640 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1641                             , enable_video_x11_vm=yes)
  1642             if test x$enable_video_x11_vm = xyes; then
  1643                 definitely_enable_video_x11_vm=no
  1644                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1645                                 have_vm_h_hdr=yes,
  1646                                 have_vm_h_hdr=no,
  1647                                 [#include <X11/Xlib.h>
  1648                                 ])
  1649                 if test x$have_vm_h_hdr = xyes; then
  1650                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1651                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1652                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1653                         definitely_enable_video_x11_vm=yes
  1654                     else
  1655                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1656                         if test x$have_vm_lib = xyes ; then
  1657                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1658                             definitely_enable_video_x11_vm=yes
  1659                         fi
  1660                     fi
  1661                 fi
  1662             fi
  1663             if test x$definitely_enable_video_x11_vm = xyes; then
  1664                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1665                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1666             fi
  1667         fi
  1668     fi
  1669 }
  1670 
  1671 dnl Set up the Haiku video driver if enabled
  1672 CheckHaikuVideo()
  1673 {
  1674     if test x$enable_video = xyes; then
  1675         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  1676         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  1677         have_video=yes
  1678         SUMMARY_video="${SUMMARY_video} haiku"
  1679     fi
  1680 }
  1681 
  1682 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1683 CheckCOCOA()
  1684 {
  1685     AC_ARG_ENABLE(video-cocoa,
  1686 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1687                   , enable_video_cocoa=yes)
  1688     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1689         save_CFLAGS="$CFLAGS"
  1690         dnl work around that we don't have Objective-C support in autoconf
  1691         CFLAGS="$CFLAGS -x objective-c"
  1692         AC_MSG_CHECKING(for Cocoa framework)
  1693         have_cocoa=no
  1694         AC_TRY_COMPILE([
  1695           #import <Cocoa/Cocoa.h>
  1696         ],[
  1697         ],[
  1698         have_cocoa=yes
  1699         ])
  1700         AC_MSG_RESULT($have_cocoa)
  1701         CFLAGS="$save_CFLAGS"
  1702         if test x$have_cocoa = xyes; then
  1703             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1704             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1705             SUMMARY_video="${SUMMARY_video} cocoa"
  1706             have_video=yes
  1707         fi
  1708     fi
  1709 }
  1710 
  1711 dnl Find DirectFB
  1712 CheckDirectFB()
  1713 {
  1714     AC_ARG_ENABLE(video-directfb,
  1715 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1716                   , enable_video_directfb=no)
  1717     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1718         video_directfb=no
  1719 
  1720         DIRECTFB_REQUIRED_VERSION=1.0.0
  1721         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1722         if test x$DIRECTFBCONFIG = xno; then
  1723             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1724             if test x$PKG_CONFIG != xno; then
  1725                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1726                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1727                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1728                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1729                     video_directfb=yes
  1730                 fi
  1731             fi
  1732         else
  1733             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1734             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1735             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  1736             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1737             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1738                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1739                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1740                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1741                 video_directfb=yes
  1742             fi
  1743         fi
  1744         if test x$video_directfb = xyes; then
  1745             # SuSE 11.1 installs directfb-config without directfb-devel
  1746             save_CPPFLAGS="$CPPFLAGS"
  1747             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1748             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1749             CPPFLAGS="$save_CPPFLAGS"
  1750             video_directfb=$have_directfb_hdr
  1751         fi
  1752         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1753         AC_MSG_RESULT($video_directfb)
  1754 
  1755         if test x$video_directfb = xyes; then
  1756             AC_ARG_ENABLE(directfb-shared,
  1757 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1758                               , enable_directfb_shared=yes)
  1759 
  1760             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1761             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1762             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1763             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1764 
  1765             AC_MSG_CHECKING(for directfb dynamic loading support)
  1766             directfb_shared=no
  1767             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1768             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1769 AC_MSG_WARN("directfb $directfb_lib")
  1770             if test x$have_loadso != xyes && \
  1771                test x$enable_directfb_shared = xyes; then
  1772                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1773             fi
  1774             if test x$have_loadso = xyes && \
  1775                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1776                 directfb_shared=yes
  1777                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1778                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1779                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  1780             else
  1781                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1782                 SUMMARY_video="${SUMMARY_video} directfb"
  1783             fi
  1784             AC_MSG_RESULT($directfb_shared)
  1785             have_video=yes
  1786         fi
  1787     fi
  1788 }
  1789 
  1790 dnl Find FusionSound
  1791 CheckFusionSound()
  1792 {
  1793     AC_ARG_ENABLE(fusionsound,
  1794 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1795                   , enable_fusionsound=no)
  1796     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1797         fusionsound=no
  1798 
  1799         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1800 
  1801         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1802         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1803         if test x$PKG_CONFIG != xno; then
  1804             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1805                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1806                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1807                 fusionsound=yes
  1808             fi
  1809         fi
  1810         AC_MSG_RESULT($fusionsound)
  1811 
  1812         if test x$fusionsound = xyes; then
  1813             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1814             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1815             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1816             
  1817             AC_ARG_ENABLE(fusionsound-shared,
  1818 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1819                           , enable_fusionsound_shared=yes)
  1820             fusionsound_shared=no
  1821             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1822             if test x$have_loadso != xyes && \
  1823                test x$enable_fusionsound_shared = xyes; then
  1824                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1825             fi
  1826             if test x$have_loadso = xyes && \
  1827                test x$enable_fusionsound_shared = xyes; then
  1828                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1829                 fusionsound_shared=yes
  1830                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1831             else
  1832                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1833                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1834             fi
  1835             AC_MSG_RESULT($fusionsound_shared)
  1836             
  1837             have_audio=yes
  1838         fi
  1839     fi
  1840 }
  1841 
  1842 dnl rcg04172001 Set up the Null video driver.
  1843 CheckDummyVideo()
  1844 {
  1845     AC_ARG_ENABLE(video-dummy,
  1846 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1847                   , enable_video_dummy=yes)
  1848     if test x$enable_video_dummy = xyes; then
  1849         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1850         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1851         have_video=yes
  1852         SUMMARY_video="${SUMMARY_video} dummy"
  1853     fi
  1854 }
  1855 
  1856 dnl Check to see if OpenGL support is desired
  1857 AC_ARG_ENABLE(video-opengl,
  1858 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1859               , enable_video_opengl=yes)
  1860 
  1861 dnl Find OpenGL
  1862 CheckOpenGLX11()
  1863 {
  1864     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1865         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1866         video_opengl=no
  1867         AC_TRY_COMPILE([
  1868          #include <GL/gl.h>
  1869          #include <GL/glx.h>
  1870         ],[
  1871         ],[
  1872         video_opengl=yes
  1873         ])
  1874         AC_MSG_RESULT($video_opengl)
  1875         if test x$video_opengl = xyes; then
  1876             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1877             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1878             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1879             SUMMARY_video="${SUMMARY_video} opengl"
  1880         fi
  1881     fi
  1882 }
  1883 
  1884 dnl Check to see if OpenGL ES support is desired
  1885 AC_ARG_ENABLE(video-opengles,
  1886 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1887               , enable_video_opengles=yes)
  1888 
  1889 dnl Find OpenGL ES
  1890 CheckOpenGLESX11()
  1891 {
  1892     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1893         AC_MSG_CHECKING(for EGL support)
  1894         video_opengl_egl=no
  1895         AC_TRY_COMPILE([
  1896          #include <EGL/egl.h>
  1897         ],[
  1898         ],[
  1899         video_opengl_egl=yes
  1900         ])
  1901         AC_MSG_RESULT($video_opengl_egl)
  1902         if test x$video_opengl_egl = xyes; then
  1903             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1904         fi
  1905             
  1906         AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1907         video_opengles_v1=no
  1908         AC_TRY_COMPILE([
  1909          #include <GLES/gl.h>
  1910          #include <GLES/glext.h>
  1911         ],[
  1912         ],[
  1913         video_opengles_v1=yes
  1914         ])
  1915         AC_MSG_RESULT($video_opengles_v1)
  1916         if test x$video_opengles_v1 = xyes; then
  1917             AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1918             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1919             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1920         fi
  1921         
  1922         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1923         video_opengles_v2=no
  1924         AC_TRY_COMPILE([
  1925          #include <GLES2/gl2.h>
  1926          #include <GLES2/gl2ext.h>
  1927         ],[
  1928         ],[
  1929         video_opengles_v2=yes
  1930         ])
  1931         AC_MSG_RESULT($video_opengles_v2)
  1932         if test x$video_opengles_v2 = xyes; then
  1933             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1934             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1935             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1936         fi
  1937     fi
  1938 }
  1939 
  1940 dnl Check for Windows OpenGL
  1941 CheckWINDOWSGL()
  1942 {
  1943     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1944         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1945         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1946         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1947         SUMMARY_video="${SUMMARY_video} opengl"
  1948     fi
  1949 }
  1950 
  1951 dnl Check for Windows OpenGL
  1952 CheckWINDOWSGLES()
  1953 {
  1954     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1955 
  1956         AC_MSG_CHECKING(for EGL support)
  1957         video_opengl_egl=no
  1958         AC_TRY_COMPILE([
  1959          #include <EGL/egl.h>
  1960         ],[
  1961         ],[
  1962         video_opengl_egl=yes
  1963         ])
  1964         AC_MSG_RESULT($video_opengl_egl)
  1965         if test x$video_opengl_egl = xyes; then
  1966             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1967             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  1968             SUMMARY_video="${SUMMARY_video} opengl_es1"
  1969         fi
  1970        
  1971         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1972         video_opengles_v2=no
  1973         AC_TRY_COMPILE([
  1974          #include <GLES2/gl2.h>
  1975          #include <GLES2/gl2ext.h>
  1976         ],[
  1977         ],[
  1978         video_opengles_v2=yes
  1979         ])
  1980         AC_MSG_RESULT($video_opengles_v2)
  1981         if test x$video_opengles_v2 = xyes; then
  1982             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1983             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1984             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1985             SUMMARY_video="${SUMMARY_video} opengl_es2"
  1986         fi
  1987     fi
  1988 }
  1989 
  1990 dnl Check for Haiku OpenGL
  1991 CheckHaikuGL()
  1992 {
  1993     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1994         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1995         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  1996         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1997         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1998         SUMMARY_video="${SUMMARY_video} opengl"
  1999     fi
  2000 }
  2001 
  2002 dnl Check for MacOS OpenGL
  2003 CheckMacGL()
  2004 {
  2005     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2006         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2007         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2008         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2009         SUMMARY_video="${SUMMARY_video} opengl"
  2010         case "$host" in
  2011             *-*-darwin*)
  2012                 if test x$enable_video_cocoa = xyes; then
  2013                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  2014                 fi
  2015         esac
  2016     fi
  2017 }
  2018 
  2019 dnl See if we can use the new unified event interface in Linux 2.4
  2020 CheckInputEvents()
  2021 {
  2022     dnl Check for Linux 2.4 unified input event interface support
  2023         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2024         use_input_events=no
  2025         AC_TRY_COMPILE([
  2026           #include <linux/input.h>
  2027         ],[
  2028           #ifndef EVIOCGNAME
  2029           #error EVIOCGNAME() ioctl not available
  2030           #endif
  2031         ],[
  2032         use_input_events=yes
  2033         ])
  2034         AC_MSG_RESULT($use_input_events)
  2035         if test x$use_input_events = xyes; then
  2036             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2037             SUMMARY_input="${SUMMARY_input} linuxev"
  2038         fi
  2039 }
  2040 
  2041 dnl See if we can use the kernel kd.h header
  2042 CheckInputKD()
  2043 {
  2044 
  2045     AC_MSG_CHECKING(for Linux kd.h)
  2046     use_input_kd=no
  2047     AC_TRY_COMPILE([
  2048       #include <linux/kd.h>
  2049       #include <linux/keyboard.h>
  2050     ],[
  2051         struct kbentry kbe;
  2052         kbe.kb_table = KG_CTRL;
  2053         ioctl(0, KDGKBENT, &kbe);
  2054     ],[
  2055     use_input_kd=yes
  2056     ])
  2057     AC_MSG_RESULT($use_input_kd)
  2058     if test x$use_input_kd = xyes; then
  2059         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2060         SUMMARY_input="${SUMMARY_input} linuxkd"
  2061     fi
  2062 }
  2063 
  2064 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2065 CheckLibUDev()
  2066 {
  2067     AC_ARG_ENABLE(libudev,
  2068 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2069                         , enable_libudev=yes)
  2070     if test x$enable_libudev = xyes; then
  2071         AC_CHECK_HEADER(libudev.h,
  2072                         have_libudev_h_hdr=yes,
  2073                         have_libudev_h_hdr=no)
  2074         if test x$have_libudev_h_hdr = xyes; then
  2075             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2076         fi
  2077     fi
  2078 }
  2079 
  2080 dnl See if the platform offers libdbus for various IPC techniques.
  2081 CheckDBus()
  2082 {
  2083     AC_ARG_ENABLE(dbus,
  2084 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2085                         , enable_dbus=yes)
  2086     if test x$enable_dbus = xyes; then
  2087         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2088         if test x$PKG_CONFIG != xno; then
  2089             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2090             save_CFLAGS="$CFLAGS"
  2091             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2092             AC_CHECK_HEADER(dbus/dbus.h,
  2093                             have_dbus_dbus_h_hdr=yes,
  2094                             have_dbus_dbus_h_hdr=no)
  2095             CFLAGS="$save_CFLAGS"
  2096             if test x$have_dbus_dbus_h_hdr = xyes; then
  2097                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2098                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2099             fi
  2100         fi
  2101     fi
  2102 }
  2103 
  2104 dnl See if we can use the Touchscreen input library
  2105 CheckTslib()
  2106 {
  2107     AC_ARG_ENABLE(input-tslib,
  2108 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2109                   , enable_input_tslib=yes)
  2110     if test x$enable_input_tslib = xyes; then
  2111         AC_MSG_CHECKING(for Touchscreen library support)
  2112         enable_input_tslib=no
  2113         AC_TRY_COMPILE([
  2114           #include "tslib.h"
  2115         ],[
  2116         ],[
  2117         enable_input_tslib=yes
  2118         ])
  2119         AC_MSG_RESULT($enable_input_tslib)
  2120         if test x$enable_input_tslib = xyes; then
  2121             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2122             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2123             SUMMARY_input="${SUMMARY_input} ts"
  2124         fi
  2125     fi
  2126 }
  2127 
  2128 dnl See what type of thread model to use on Linux and Solaris
  2129 CheckPTHREAD()
  2130 {
  2131     dnl Check for pthread support
  2132     AC_ARG_ENABLE(pthreads,
  2133 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2134                   , enable_pthreads=yes)
  2135     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2136     AC_ARG_ENABLE(pthread-sem,
  2137 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2138                   , enable_pthread_sem=yes)
  2139     case "$host" in
  2140         *-*-linux*|*-*-uclinux*)
  2141             pthread_cflags="-D_REENTRANT"
  2142             pthread_lib="-lpthread"
  2143             ;;
  2144         *-*-bsdi*)
  2145             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2146             pthread_lib=""
  2147             ;;
  2148         *-*-darwin*)
  2149             pthread_cflags="-D_THREAD_SAFE"
  2150 # causes Carbon.p complaints?
  2151 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2152             ;;
  2153         *-*-freebsd*|*-*-dragonfly*)
  2154             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2155             pthread_lib="-pthread"
  2156             ;;
  2157         *-*-netbsd*)
  2158             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2159             pthread_lib="-lpthread"
  2160             ;;
  2161         *-*-openbsd*)
  2162             pthread_cflags="-D_REENTRANT"
  2163             pthread_lib="-pthread"
  2164             ;;
  2165         *-*-solaris2.9)
  2166             # From Solaris 9+, posix4's preferred name is rt.
  2167             pthread_cflags="-D_REENTRANT"
  2168             pthread_lib="-lpthread -lrt"
  2169             ;;
  2170         *-*-solaris2.10)
  2171             # Solaris 10+ merged pthread into libc.
  2172             pthread_cflags="-D_REENTRANT"
  2173             pthread_lib="-lrt"
  2174             ;;
  2175         *-*-solaris*)
  2176             # Solaris 11+ merged rt into libc.
  2177             pthread_cflags="-D_REENTRANT"
  2178             pthread_lib=""
  2179             ;;
  2180         *-*-sysv5*)
  2181             pthread_cflags="-D_REENTRANT -Kthread"
  2182             pthread_lib=""
  2183             ;;
  2184         *-*-aix*)
  2185             pthread_cflags="-D_REENTRANT -mthreads"
  2186             pthread_lib="-lpthread"
  2187             ;;
  2188         *-*-hpux11*)
  2189             pthread_cflags="-D_REENTRANT"
  2190             pthread_lib="-L/usr/lib -lpthread"
  2191             ;;
  2192         *-*-haiku*)
  2193             pthread_cflags="-D_REENTRANT"
  2194             pthread_lib=""
  2195             ;;
  2196         *)
  2197             pthread_cflags="-D_REENTRANT"
  2198             pthread_lib="-lpthread"
  2199             ;;
  2200     esac
  2201     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2202         # Save the original compiler flags and libraries
  2203         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2204         # Add the pthread compiler flags and libraries
  2205         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2206         # Check to see if we have pthread support on this system
  2207         AC_MSG_CHECKING(for pthreads)
  2208         use_pthreads=no
  2209         AC_TRY_LINK([
  2210          #include <pthread.h>
  2211         ],[
  2212          pthread_attr_t type;
  2213          pthread_attr_init(&type);
  2214         ],[
  2215         use_pthreads=yes
  2216         ])
  2217         AC_MSG_RESULT($use_pthreads)
  2218         # Restore the compiler flags and libraries
  2219         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2220 
  2221         # Do futher testing if we have pthread support...
  2222         if test x$use_pthreads = xyes; then
  2223             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2224             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2225             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2226             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2227             SDL_LIBS="$SDL_LIBS $pthread_lib"
  2228 
  2229             # Save the original compiler flags and libraries
  2230             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2231             # Add the pthread compiler flags and libraries
  2232             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2233 
  2234             # Check to see if recursive mutexes are available
  2235             AC_MSG_CHECKING(for recursive mutexes)
  2236             has_recursive_mutexes=no
  2237             if test x$has_recursive_mutexes = xno; then
  2238                 AC_TRY_COMPILE([
  2239                   #include <pthread.h>
  2240                 ],[
  2241                   pthread_mutexattr_t attr;
  2242                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2243                 ],[
  2244                 has_recursive_mutexes=yes
  2245                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2246                 ])
  2247             fi
  2248             if test x$has_recursive_mutexes = xno; then
  2249                 AC_TRY_COMPILE([
  2250                   #include <pthread.h>
  2251                 ],[
  2252                   pthread_mutexattr_t attr;
  2253                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2254                 ],[
  2255                 has_recursive_mutexes=yes
  2256                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2257                 ])
  2258             fi
  2259             AC_MSG_RESULT($has_recursive_mutexes)
  2260 
  2261             # Check to see if pthread semaphore support is missing
  2262             if test x$enable_pthread_sem = xyes; then
  2263                 AC_MSG_CHECKING(for pthread semaphores)
  2264                 have_pthread_sem=no
  2265                 AC_TRY_COMPILE([
  2266                   #include <pthread.h>
  2267                   #include <semaphore.h>
  2268                 ],[
  2269                 ],[
  2270                 have_pthread_sem=yes
  2271                 ])
  2272                 AC_MSG_RESULT($have_pthread_sem)
  2273             fi
  2274             if test x$have_pthread_sem = xyes; then
  2275                 AC_MSG_CHECKING(for sem_timedwait)
  2276                 have_sem_timedwait=no
  2277                 AC_TRY_LINK([
  2278                   #include <pthread.h>
  2279                   #include <semaphore.h>
  2280                 ],[
  2281                   sem_timedwait(NULL, NULL);
  2282                 ],[
  2283                 have_sem_timedwait=yes
  2284                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  2285                 ])
  2286                 AC_MSG_RESULT($have_sem_timedwait)
  2287             fi
  2288 
  2289             AC_MSG_CHECKING(for pthread_spin_trylock)
  2290             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  2291               has_pthread_spin_trylock=yes
  2292               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  2293             ],[
  2294               has_pthread_spin_trylock=no
  2295             ])
  2296             AC_MSG_RESULT($has_pthread_spin_trylock)
  2297 
  2298             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2299             if test x$have_pthread_np_h = xyes; then
  2300                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2301             fi
  2302 
  2303             # Check to see if pthread naming is available
  2304             AC_MSG_CHECKING(for pthread_setname_np)
  2305             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2306               has_pthread_setname_np=yes
  2307               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2308             ],[
  2309               has_pthread_setname_np=no
  2310             ])
  2311             AC_MSG_RESULT($has_pthread_setname_np)
  2312 
  2313             AC_MSG_CHECKING(for pthread_set_name_np)
  2314             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2315               has_pthread_set_name_np=yes
  2316               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2317             ],[
  2318               has_pthread_set_name_np=no
  2319             ])
  2320             AC_MSG_RESULT($has_pthread_set_name_np)
  2321 
  2322             # Restore the compiler flags and libraries
  2323             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2324 
  2325             # Basic thread creation functions
  2326             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2327 
  2328             # Semaphores
  2329             # We can fake these with mutexes and condition variables if necessary
  2330             if test x$have_pthread_sem = xyes; then
  2331                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2332             else
  2333                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2334             fi
  2335 
  2336             # Mutexes
  2337             # We can fake these with semaphores if necessary
  2338             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2339 
  2340             # Condition variables
  2341             # We can fake these with semaphores and mutexes if necessary
  2342             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2343 
  2344             # Thread local storage
  2345             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2346 
  2347             have_threads=yes
  2348         fi
  2349     fi
  2350 }
  2351 
  2352 dnl Determine whether the compiler can produce Windows executables
  2353 CheckWINDOWS()
  2354 {
  2355     AC_MSG_CHECKING(Windows compiler)
  2356     have_win32_gcc=no
  2357     AC_TRY_COMPILE([
  2358      #include <windows.h>
  2359     ],[
  2360     ],[
  2361     have_win32_gcc=yes
  2362     ])
  2363     AC_MSG_RESULT($have_win32_gcc)
  2364     if test x$have_win32_gcc != xyes; then
  2365        AC_MSG_ERROR([
  2366 *** Your compiler ($CC) does not produce Windows executables!
  2367        ])
  2368     fi
  2369 
  2370     AC_MSG_CHECKING(Windows CE)
  2371     have_wince=no
  2372     AC_TRY_COMPILE([
  2373 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2374 #error This is not Windows CE
  2375 #endif
  2376     ],[
  2377     ],[
  2378     have_wince=yes
  2379        AC_MSG_ERROR([
  2380 *** Sorry, Windows CE is no longer supported.
  2381        ])
  2382     ])
  2383     AC_MSG_RESULT($have_wince)
  2384 
  2385     # This fixes Windows stack alignment with newer GCC
  2386     CheckStackBoundary
  2387 }
  2388 
  2389 dnl Find the DirectX includes and libraries
  2390 CheckDIRECTX()
  2391 {
  2392     AC_ARG_ENABLE(directx,
  2393 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2394                   , enable_directx=yes)
  2395     if test x$enable_directx = xyes; then
  2396         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2397         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2398         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2399         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2400         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2401 
  2402         SUMMARY_video="${SUMMARY_video} directx"
  2403         SUMMARY_audio="${SUMMARY_audio} directx"
  2404 
  2405         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  2406         # FIXME:  ...so force it off for now.
  2407         case "$host" in
  2408             *-*-cygwin*)
  2409             have_dinput=false
  2410             ;;
  2411         esac
  2412     fi
  2413 }
  2414 
  2415 dnl Check for the dlfcn.h interface for dynamically loading objects
  2416 CheckDLOPEN()
  2417 {
  2418     AC_ARG_ENABLE(sdl-dlopen,
  2419 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  2420                   , enable_sdl_dlopen=yes)
  2421     if test x$enable_sdl_dlopen = xyes; then
  2422         AC_MSG_CHECKING(for dlopen)
  2423         have_dlopen=no
  2424         AC_TRY_COMPILE([
  2425          #include <dlfcn.h>
  2426         ],[
  2427          void *handle = dlopen("", RTLD_NOW);
  2428          const char *loaderror = (char *) dlerror();
  2429         ],[
  2430         have_dlopen=yes
  2431         ])
  2432         AC_MSG_RESULT($have_dlopen)
  2433 
  2434         if test x$have_dlopen = xyes; then
  2435             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  2436                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  2437                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  2438             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  2439             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  2440             have_loadso=yes
  2441         fi
  2442     fi
  2443 }
  2444 
  2445 dnl Check for the usbhid(3) library on *BSD
  2446 CheckUSBHID()
  2447 {
  2448     case "$host" in
  2449         *-*-*bsd*)
  2450             if test x$enable_joystick = xyes; then
  2451                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  2452                 if test x$have_libusbhid = xyes; then
  2453                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  2454                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  2455                     USB_LIBS="$USB_LIBS -lusbhid"
  2456                 else
  2457                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  2458                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  2459                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  2460                 fi
  2461                     
  2462                 save_CFLAGS="$CFLAGS"
  2463                 CFLAGS="$CFLAGS $USB_CFLAGS"
  2464 
  2465                 AC_MSG_CHECKING(for usbhid)
  2466                 have_usbhid=no
  2467                 AC_TRY_COMPILE([
  2468                   #include <sys/types.h>
  2469                   #if defined(HAVE_USB_H)
  2470                   #include <usb.h>
  2471                   #endif
  2472                   #ifdef __DragonFly__
  2473                   # include <bus/usb/usb.h>
  2474                   # include <bus/usb/usbhid.h>
  2475                   #else
  2476                   # include <dev/usb/usb.h>
  2477                   # include <dev/usb/usbhid.h>
  2478                   #endif
  2479                   #if defined(HAVE_USBHID_H)
  2480                   #include <usbhid.h>
  2481                   #elif defined(HAVE_LIBUSB_H)
  2482                   #include <libusb.h>
  2483                   #elif defined(HAVE_LIBUSBHID_H)
  2484                   #include <libusbhid.h>
  2485                   #endif
  2486                 ],[
  2487                   struct report_desc *repdesc;
  2488                   struct usb_ctl_report *repbuf;
  2489                   hid_kind_t hidkind;
  2490                 ],[
  2491                 have_usbhid=yes
  2492                 ])
  2493                 AC_MSG_RESULT($have_usbhid)
  2494 
  2495                 if test x$have_usbhid = xyes; then
  2496                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  2497                     have_usbhid_ucr_data=no
  2498                     AC_TRY_COMPILE([
  2499                       #include <sys/types.h>
  2500                       #if defined(HAVE_USB_H)
  2501                       #include <usb.h>
  2502                       #endif
  2503                       #ifdef __DragonFly__
  2504                       # include <bus/usb/usb.h>
  2505                       # include <bus/usb/usbhid.h>
  2506                       #else
  2507                       # include <dev/usb/usb.h>
  2508                       # include <dev/usb/usbhid.h>
  2509                       #endif
  2510                       #if defined(HAVE_USBHID_H)
  2511                       #include <usbhid.h>
  2512                       #elif defined(HAVE_LIBUSB_H)
  2513                       #include <libusb.h>
  2514                       #elif defined(HAVE_LIBUSBHID_H)
  2515                       #include <libusbhid.h>
  2516                       #endif
  2517                     ],[
  2518                       struct usb_ctl_report buf;
  2519                       if (buf.ucr_data) { }
  2520                     ],[
  2521                     have_usbhid_ucr_data=yes
  2522                     ])
  2523                     if test x$have_usbhid_ucr_data = xyes; then
  2524                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2525                     fi
  2526                     AC_MSG_RESULT($have_usbhid_ucr_data)
  2527                     
  2528                     AC_MSG_CHECKING(for new usbhid API)
  2529                     have_usbhid_new=no
  2530                     AC_TRY_COMPILE([
  2531                       #include <sys/types.h>
  2532                       #if defined(HAVE_USB_H)
  2533                       #include <usb.h>
  2534                       #endif
  2535                       #ifdef __DragonFly__
  2536                       #include <bus/usb/usb.h>
  2537                       #include <bus/usb/usbhid.h>
  2538                       #else
  2539                       #include <dev/usb/usb.h>
  2540                       #include <dev/usb/usbhid.h>
  2541                       #endif
  2542                       #if defined(HAVE_USBHID_H)
  2543                       #include <usbhid.h>
  2544                       #elif defined(HAVE_LIBUSB_H)
  2545                       #include <libusb.h>
  2546                       #elif defined(HAVE_LIBUSBHID_H)
  2547                       #include <libusbhid.h>
  2548                       #endif
  2549                     ],[
  2550                       report_desc_t d;
  2551                       hid_start_parse(d, 1, 1);
  2552                     ],[
  2553                     have_usbhid_new=yes
  2554                     ])
  2555                     if test x$have_usbhid_new = xyes; then
  2556                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2557                     fi
  2558                     AC_MSG_RESULT($have_usbhid_new)
  2559 
  2560                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2561                     have_machine_joystick=no
  2562                     AC_TRY_COMPILE([
  2563                       #include <machine/joystick.h>
  2564                     ],[
  2565                       struct joystick t;
  2566                     ],[
  2567                     have_machine_joystick=yes
  2568                     ])
  2569                     if test x$have_machine_joystick = xyes; then
  2570                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2571                     fi
  2572                     AC_MSG_RESULT($have_machine_joystick)
  2573 
  2574                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2575                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2576                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2577                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2578                     have_joystick=yes
  2579                 fi
  2580                 CFLAGS="$save_CFLAGS"
  2581             fi
  2582         ;;
  2583     esac
  2584 }
  2585 
  2586 dnl Check for clock_gettime()
  2587 CheckClockGettime()
  2588 {
  2589     AC_ARG_ENABLE(clock_gettime,
  2590 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  2591                   , enable_clock_gettime=yes)
  2592     if test x$enable_clock_gettime = xyes; then
  2593         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2594         if test x$have_clock_gettime = xyes; then
  2595             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2596             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2597         else
  2598             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2599             if test x$have_clock_gettime = xyes; then
  2600                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2601                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2602             fi
  2603         fi
  2604     fi
  2605 }
  2606 
  2607 dnl Check for a valid linux/version.h
  2608 CheckLinuxVersion()
  2609 {
  2610     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2611     if test x$have_linux_version_h = xyes; then
  2612         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2613     fi
  2614 }
  2615 
  2616 dnl Check if we want to use RPATH
  2617 CheckRPATH()
  2618 {
  2619     AC_ARG_ENABLE(rpath,
  2620 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2621                   , enable_rpath=yes)
  2622 }
  2623 
  2624 dnl Set up the configuration based on the host platform!
  2625 case "$host" in
  2626     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2627         case "$host" in
  2628             *-raspberry-linux*)
  2629                 # Raspberry Pi
  2630                 ARCH=linux
  2631                 RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  2632                 CFLAGS="$CFLAGS $RPI_CFLAGS"
  2633                 SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  2634                 EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  2635                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L/opt/vc/lib -lbcm_host -ldl"
  2636 
  2637                 if test x$enable_video = xyes; then
  2638                     SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  2639                     $as_echo "#define SDL_VIDEO_DRIVER_RPI 1" >>confdefs.h
  2640                 fi
  2641                 ;;
  2642             *-*-linux*)         ARCH=linux ;;
  2643             *-*-uclinux*)       ARCH=linux ;;
  2644             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2645             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2646             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2647             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2648             *-*-bsdi*)          ARCH=bsdi ;;
  2649             *-*-freebsd*)       ARCH=freebsd ;;
  2650             *-*-dragonfly*)     ARCH=freebsd ;;
  2651             *-*-netbsd*)        ARCH=netbsd ;;
  2652             *-*-openbsd*)       ARCH=openbsd ;;
  2653             *-*-sysv5*)         ARCH=sysv5 ;;
  2654             *-*-solaris*)       ARCH=solaris ;;
  2655             *-*-hpux*)          ARCH=hpux ;;
  2656             *-*-aix*)           ARCH=aix ;;
  2657             *-*-minix*)         ARCH=minix ;;
  2658         esac
  2659         CheckVisibilityHidden
  2660         CheckDummyVideo
  2661         CheckDiskAudio
  2662         CheckDummyAudio
  2663         CheckDLOPEN
  2664         CheckOSS
  2665         CheckALSA
  2666         CheckPulseAudio
  2667         CheckARTSC
  2668         CheckESD
  2669         CheckNAS
  2670         CheckSNDIO
  2671         CheckX11
  2672         CheckWayland
  2673         CheckMir
  2674         CheckDirectFB
  2675         CheckFusionSound
  2676         CheckOpenGLX11
  2677         CheckOpenGLESX11
  2678         CheckLibUDev
  2679         CheckDBus
  2680         CheckInputEvents
  2681         CheckInputKD
  2682         CheckTslib
  2683         CheckUSBHID
  2684         CheckPTHREAD
  2685         CheckClockGettime
  2686         CheckLinuxVersion
  2687         CheckRPATH
  2688         # Set up files for the audio library
  2689         if test x$enable_audio = xyes; then
  2690           case $ARCH in
  2691             sysv5|solaris|hpux)
  2692                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2693                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2694                 have_audio=yes
  2695             ;;
  2696             netbsd)  # Don't use this on OpenBSD, it's busted.
  2697                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2698                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2699                 have_audio=yes
  2700             ;;
  2701             aix)
  2702                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2703                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2704                 have_audio=yes
  2705             ;;
  2706           esac
  2707         fi
  2708         # Set up files for the joystick library
  2709         if test x$enable_joystick = xyes; then
  2710           case $ARCH in
  2711             linux)
  2712                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2713                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2714                 have_joystick=yes
  2715             ;;
  2716           esac
  2717         fi
  2718         # Set up files for the haptic library
  2719         if test x$enable_haptic = xyes; then
  2720            if test x$use_input_events = xyes; then
  2721              case $ARCH in
  2722                linux)
  2723                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2724                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2725                    have_haptic=yes
  2726                ;;
  2727              esac
  2728            fi
  2729         fi
  2730         # Set up files for the power library
  2731         if test x$enable_power = xyes; then
  2732              case $ARCH in
  2733                linux)
  2734                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2735                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2736                    have_power=yes
  2737                ;;
  2738              esac
  2739         fi
  2740         # Set up files for the filesystem library
  2741         if test x$enable_filesystem = xyes; then
  2742             AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  2743             SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  2744             have_filesystem=yes
  2745         fi
  2746         # Set up files for the timer library
  2747         if test x$enable_timers = xyes; then
  2748             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2749             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2750             have_timers=yes
  2751         fi
  2752         # Set up files for udev hotplugging support
  2753         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  2754             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  2755         fi
  2756         # Set up files for evdev input
  2757         if test x$use_input_events = xyes; then
  2758             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
  2759         fi       
  2760         ;;
  2761     *-*-cygwin* | *-*-mingw32*)
  2762         ARCH=win32
  2763         if test "$build" != "$host"; then # cross-compiling
  2764             # Default cross-compile location
  2765             ac_default_prefix=/usr/local/cross-tools/$host
  2766         else
  2767             # Look for the location of the tools and install there
  2768             if test "$BUILD_PREFIX" != ""; then
  2769                 ac_default_prefix=$BUILD_PREFIX
  2770             fi
  2771         fi
  2772         CheckDummyVideo
  2773         CheckDiskAudio
  2774         CheckDummyAudio
  2775         CheckWINDOWS
  2776         CheckWINDOWSGL
  2777         CheckWINDOWSGLES
  2778         CheckDIRECTX
  2779 
  2780         # Set up the core platform files
  2781         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2782 
  2783         # Set up files for the video library
  2784         if test x$enable_video = xyes; then
  2785             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2786             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2787             have_video=yes
  2788             AC_ARG_ENABLE(render-d3d,
  2789 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2790                                 , enable_render_d3d=yes)
  2791             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2792                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2793             fi
  2794         fi
  2795         # Set up files for the audio library
  2796         if test x$enable_audio = xyes; then
  2797             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2798             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2799             if test x$have_dsound = xyes; then
  2800                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2801                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2802             fi
  2803             if test x$have_xaudio2 = xyes; then
  2804                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2805                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2806             fi
  2807             have_audio=yes
  2808         fi
  2809         # Set up files for the joystick library
  2810         if test x$enable_joystick = xyes; then
  2811             if test x$have_dinput = xyes; then
  2812                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2813                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2814                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2815             else
  2816                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2817                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2818             fi
  2819             have_joystick=yes
  2820         fi
  2821         if test x$enable_haptic = xyes; then
  2822             if test x$have_dinput = xyes; then
  2823                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2824                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2825                 have_haptic=yes
  2826             fi
  2827         fi
  2828         if test x$enable_power = xyes; then
  2829             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2830             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2831             have_power=yes
  2832         fi
  2833         if test x$enable_filesystem = xyes; then
  2834             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  2835             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  2836             have_filesystem=yes
  2837         fi
  2838         # Set up files for the thread library
  2839         if test x$enable_threads = xyes; then
  2840             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2841             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  2842             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2843             have_threads=yes
  2844         fi
  2845         # Set up files for the timer library
  2846         if test x$enable_timers = xyes; then
  2847             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2848             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2849             have_timers=yes
  2850         fi
  2851         # Set up files for the shared object loading library
  2852         if test x$enable_loadso = xyes; then
  2853             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2854             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2855             have_loadso=yes
  2856         fi
  2857         # Set up the system libraries we need
  2858         if test -f /lib/w32api/libuuid.a; then
  2859             LIBUUID=/lib/w32api/libuuid.a
  2860         else
  2861             LIBUUID=-luuid
  2862         fi
  2863         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -XCClinker -static-libgcc"
  2864         # The Windows platform requires special setup
  2865         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2866         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2867         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2868         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  2869 
  2870         # Check to see if this is a mingw or cygwin build
  2871         have_mingw32=
  2872         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  2873         if test x$have_mingw32 = xyes; then
  2874             SDL_LIBS="-lmingw32 $SDL_LIBS"
  2875         else
  2876             SDL_LIBS="-lcygwin $SDL_LIBS"
  2877         fi
  2878         ;;
  2879 
  2880     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  2881     *-*-beos*)
  2882         AC_MSG_ERROR([
  2883 *** BeOS support has been removed as of SDL 2.0.2.
  2884         ])
  2885         ;;
  2886 
  2887     *-*-haiku*)
  2888         ARCH=haiku
  2889         ac_default_prefix=/boot/system
  2890         CheckDummyVideo
  2891         CheckDiskAudio
  2892         CheckDummyAudio
  2893         CheckHaikuVideo
  2894         CheckHaikuGL
  2895         CheckPTHREAD
  2896 
  2897         # Set up files for the audio library
  2898         if test x$enable_audio = xyes; then
  2899             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  2900             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  2901             have_audio=yes
  2902         fi
  2903         # Set up files for the joystick library
  2904         if test x$enable_joystick = xyes; then
  2905             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  2906             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  2907             have_joystick=yes
  2908         fi
  2909         # Set up files for the timer library
  2910         if test x$enable_timers = xyes; then
  2911             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  2912             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  2913             have_timers=yes
  2914         fi
  2915         # Set up files for the shared object loading library
  2916         if test x$enable_loadso = xyes; then
  2917             AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
  2918             SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
  2919             have_loadso=yes
  2920         fi
  2921         # Set up files for the system power library
  2922         if test x$enable_power = xyes; then
  2923             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  2924             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  2925             have_power=yes
  2926         fi
  2927         # Set up files for the system filesystem library
  2928         if test x$enable_filesystem = xyes; then
  2929             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  2930             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  2931             have_filesystem=yes
  2932         fi
  2933         # The Haiku platform requires special setup.
  2934         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  2935         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2936         ;;
  2937     arm*-apple-darwin*)
  2938         # iOS - We are not writing anything to confdefs.h because you have to replace
  2939         # SDL_config.h for SDL_config_iphoneos.h anyway
  2940         ARCH=ios
  2941 
  2942         CheckVisibilityHidden
  2943         CheckDummyVideo
  2944         CheckDiskAudio
  2945         CheckDummyAudio
  2946         CheckDLOPEN
  2947         CheckCOCOA
  2948         CheckPTHREAD
  2949 
  2950 
  2951         # Set up files for the audio library
  2952         if test x$enable_audio = xyes; then
  2953             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2954             have_audio=yes
  2955         fi
  2956         # Set up files for the joystick library
  2957         if test x$enable_joystick = xyes; then
  2958             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2959             have_joystick=yes
  2960         fi
  2961         # Set up files for the haptic library
  2962         #if test x$enable_haptic = xyes; then
  2963         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2964         #    have_haptic=yes
  2965         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2966         #fi
  2967         # Set up files for the power library
  2968         if test x$enable_power = xyes; then
  2969             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2970             have_power=yes
  2971         fi
  2972         # Set up files for the filesystem library
  2973         if test x$enable_filesystem = xyes; then
  2974             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  2975             have_filesystem=yes
  2976         fi
  2977         # Set up files for the timer library
  2978         if test x$enable_timers = xyes; then
  2979             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2980             have_timers=yes
  2981         fi
  2982         # Set up additional files for the file library
  2983         if test x$enable_file = xyes; then
  2984             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2985         fi
  2986         # The iOS platform requires special setup.
  2987         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2988         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2989         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  2990         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  2991         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  2992         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  2993         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  2994         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  2995         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  2996         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  2997         ;;
  2998     *-*-darwin* )
  2999         # This could be either full "Mac OS X", or plain "Darwin" which is
  3000         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3001         # Next line is broken, and a few files below require Mac OS X (full)
  3002         ARCH=macosx
  3003 
  3004         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3005         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3006         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3007 
  3008         CheckVisibilityHidden
  3009         CheckDummyVideo
  3010         CheckDiskAudio
  3011         CheckDummyAudio
  3012         CheckDLOPEN
  3013         CheckCOCOA
  3014         CheckX11
  3015         CheckMacGL
  3016         CheckOpenGLX11
  3017         CheckPTHREAD
  3018 
  3019         # Set up files for the audio library
  3020         if test x$enable_audio = xyes; then
  3021             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3022             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  3023             have_audio=yes
  3024         fi
  3025         # Set up files for the joystick library
  3026         if test x$enable_joystick = xyes; then
  3027             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3028             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3029             have_joystick=yes
  3030         fi
  3031         # Set up files for the haptic library
  3032         if test x$enable_haptic = xyes; then
  3033             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3034             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3035             have_haptic=yes
  3036             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3037         fi
  3038         # Set up files for the power library
  3039         if test x$enable_power = xyes; then
  3040             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3041             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3042             have_power=yes
  3043         fi
  3044         # Set up files for the filesystem library
  3045         if test x$enable_filesystem = xyes; then
  3046             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3047             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3048             have_filesystem=yes
  3049         fi
  3050         # Set up files for the timer library
  3051         if test x$enable_timers = xyes; then
  3052             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3053             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3054             have_timers=yes
  3055         fi
  3056         # Set up additional files for the file library
  3057         if test x$enable_file = xyes; then
  3058             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3059         fi
  3060         # The Mac OS X platform requires special setup.
  3061         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  3062         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3063         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3064         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3065         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3066         # If audio is used, add the AudioUnit framework
  3067         if test x$enable_audio = xyes; then
  3068             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  3069         fi
  3070         ;;
  3071     *)
  3072         AC_MSG_ERROR([
  3073 *** Unsupported host:  Please add to configure.in
  3074         ])
  3075         ;;
  3076 esac
  3077 
  3078 dnl Do this on all platforms, after everything else.
  3079 CheckWarnAll
  3080 
  3081 # Verify that we have all the platform specific files we need
  3082 
  3083 if test x$have_joystick != xyes; then
  3084     if test x$enable_joystick = xyes; then
  3085         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3086     fi
  3087     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3088 fi
  3089 if test x$have_haptic != xyes; then
  3090     if test x$enable_haptic = xyes; then
  3091         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3092     fi
  3093     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3094 fi
  3095 if test x$have_threads != xyes; then
  3096     if test x$enable_threads = xyes; then
  3097         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3098     fi
  3099     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3100 fi
  3101 if test x$have_timers != xyes; then
  3102     if test x$enable_timers = xyes; then
  3103         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3104     fi
  3105     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3106 fi
  3107 if test x$have_filesystem != xyes; then
  3108     if test x$enable_filesystem = xyes; then
  3109         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3110     fi
  3111     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3112 fi
  3113 if test x$have_loadso != xyes; then
  3114     if test x$enable_loadso = xyes; then
  3115         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3116     fi
  3117     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3118 fi
  3119 if test x$SDLMAIN_SOURCES = x; then
  3120     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3121 fi
  3122 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3123 
  3124 OBJECTS=`echo $SOURCES`
  3125 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3126 for EXT in asm cc m c S; do
  3127     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3128     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3129 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3130 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3131 done
  3132 
  3133 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3134 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3135 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3136 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3137 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3138 	\\$(WINDRES) \\$< \\$@,g"`
  3139 
  3140 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3141 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3142 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3143 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3144 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3145 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3146 
  3147 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3148 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3149 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  3150 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3151 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  3152 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3153 
  3154 # Set runtime shared library paths as needed
  3155 
  3156 if test "x$enable_rpath" = "xyes"; then
  3157   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3158     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3159   fi
  3160   if test $ARCH = solaris; then
  3161     SDL_RLD_FLAGS="-R\${libdir}"
  3162   fi
  3163 else
  3164   SDL_RLD_FLAGS=""
  3165 fi
  3166 
  3167 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  3168 
  3169 dnl Expand the cflags and libraries needed by apps using SDL
  3170 AC_SUBST(SDL_CFLAGS)
  3171 AC_SUBST(SDL_LIBS)
  3172 AC_SUBST(SDL_STATIC_LIBS)
  3173 AC_SUBST(SDL_RLD_FLAGS)
  3174 if test x$enable_shared = xyes; then
  3175     ENABLE_SHARED_TRUE=
  3176     ENABLE_SHARED_FALSE="#"
  3177 else
  3178     ENABLE_SHARED_TRUE="#"
  3179     ENABLE_SHARED_FALSE=
  3180 fi
  3181 if test x$enable_static = xyes; then
  3182     ENABLE_STATIC_TRUE=
  3183     ENABLE_STATIC_FALSE="#"
  3184 else
  3185     ENABLE_STATIC_TRUE="#"
  3186     ENABLE_STATIC_FALSE=
  3187 fi
  3188 AC_SUBST(ENABLE_SHARED_TRUE)
  3189 AC_SUBST(ENABLE_SHARED_FALSE)
  3190 AC_SUBST(ENABLE_STATIC_TRUE)
  3191 AC_SUBST(ENABLE_STATIC_FALSE)
  3192 
  3193 dnl Expand the sources and objects needed to build the library
  3194 AC_SUBST(ac_aux_dir)
  3195 AC_SUBST(INCLUDE)
  3196 AC_SUBST(OBJECTS)
  3197 AC_SUBST(VERSION_OBJECTS)
  3198 AC_SUBST(SDLMAIN_OBJECTS)
  3199 AC_SUBST(SDLTEST_OBJECTS)
  3200 AC_SUBST(BUILD_CFLAGS)
  3201 AC_SUBST(EXTRA_CFLAGS)
  3202 AC_SUBST(BUILD_LDFLAGS)
  3203 AC_SUBST(EXTRA_LDFLAGS)
  3204 AC_SUBST(WINDRES)
  3205 
  3206 cat >Makefile.rules <<__EOF__
  3207 
  3208 # Build rules for objects
  3209 -include \$(OBJECTS:.lo=.d)
  3210 
  3211 # Special dependency for SDL.c, since it depends on SDL_revision.h
  3212 $srcdir/src/SDL.c: update-revision
  3213 $DEPENDS
  3214 $VERSION_DEPENDS
  3215 $SDLMAIN_DEPENDS
  3216 $SDLTEST_DEPENDS
  3217 __EOF__
  3218 
  3219 AC_CONFIG_FILES([
  3220     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  3221 ])
  3222 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  3223 
  3224 SUMMARY="SDL2 Configure Summary:\n"
  3225 if test x$enable_shared = xyes; then
  3226     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  3227 fi
  3228 if test x$enable_static = xyes; then
  3229     SUMMARY="${SUMMARY}Building Static Libraries\n"
  3230 fi
  3231 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  3232 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  3233 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  3234 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  3235 if test x$have_x = xyes; then
  3236     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  3237 fi
  3238 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  3239 if test x$enable_libudev = xyes; then
  3240     SUMMARY="${SUMMARY}Using libudev   : YES\n"
  3241 else
  3242     SUMMARY="${SUMMARY}Using libudev   : NO\n"
  3243 fi
  3244 if test x$have_dbus_dbus_h_hdr = xyes; then
  3245     SUMMARY="${SUMMARY}Using dbus      : YES\n"
  3246 else
  3247     SUMMARY="${SUMMARY}Using dbus      : NO\n"
  3248 fi
  3249 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  3250 
  3251 AC_OUTPUT