configure.in
author Sam Lantinga <slouken@libsdl.org>
Thu, 29 Dec 2011 05:36:39 -0500
changeset 6116 66f48d6bf735
parent 6086 45d22791e77c
child 6188 e82023802002
permissions -rw-r--r--
Fixes bug 1296 - SDL_SetVideoMode crashes because of unaligned MOVAPS instruction

t.grundner@goto3d.de 2011-09-01 03:59:17 PDT
I figured out what is going on. GCC 4.5.2 assumes the stack is 16 byte aligned
by default. Therefore there are no AND alignment corrections necessary if we
wish to align a stack variable to a 16 byte boundary. That is bad if your OS
ABI is not 16 byte aligned. Windows 32 bit stacks are 4 byte aligned. This
results in the above mentioned SIGSEGV. This is also no problem if I compile
both SDL.dll and my app with MingW because MinGW/GCC inserts a

andl $-16, %esp

instruction right in the beginning of the main function. So at least the stack
of the thread calling the main function is 16 byte aligned. But as soon as I
start to use the SDL.dll from an application not compiled by MinGW there is no
ANDL safing my app.

However there is a GCC option that can change the default stack alignment:

-mpreferred-stack-boundary=num

Setting num=2 assumes a the stack is aligned to a 4 byte boundary. This results
in GCC inserting the necessary

andl $-16, %esp

into SDL_FillRect. Rebuilding SDL with

./configure "CFLAGS=-mpreferred-stack-boundary=2 -g -O3"

solved the problem.

IMHO this should also be a problem on Solaris.

The following links contain further information:

http://gcc.gnu.org/onlinedocs/gcc-4.5.2/gcc/i386-and-x86_002d64-Options.html#i386-and-x86_002d64-Options

http://www.agner.org/optimize/calling_conventions.pdf
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_GNU_SOURCE
     5 AC_CONFIG_AUX_DIR(build-scripts)
     6 AC_CONFIG_MACRO_DIR([acinclude])
     7 
     8 dnl Save the CFLAGS to see whether they were passed in or generated
     9 orig_CFLAGS="$CFLAGS"
    10 
    11 dnl Set various version strings - taken gratefully from the GTk sources
    12 #
    13 # Making releases:
    14 # Edit include/SDL/SDL_version.h and change the version, then:
    15 #   SDL_MICRO_VERSION += 1;
    16 #   SDL_INTERFACE_AGE += 1;
    17 #   SDL_BINARY_AGE += 1;
    18 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    19 # if backwards compatibility has been broken,
    20 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    21 #
    22 SDL_MAJOR_VERSION=1
    23 SDL_MINOR_VERSION=3
    24 SDL_MICRO_VERSION=0
    25 SDL_INTERFACE_AGE=0
    26 SDL_BINARY_AGE=0
    27 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    28 
    29 AC_SUBST(SDL_MAJOR_VERSION)
    30 AC_SUBST(SDL_MINOR_VERSION)
    31 AC_SUBST(SDL_MICRO_VERSION)
    32 AC_SUBST(SDL_INTERFACE_AGE)
    33 AC_SUBST(SDL_BINARY_AGE)
    34 AC_SUBST(SDL_VERSION)
    35 
    36 # libtool versioning
    37 LT_INIT([win32-dll])
    38 
    39 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    40 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    41 LT_REVISION=$SDL_INTERFACE_AGE
    42 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    43 m4_pattern_allow([^LT_])
    44 
    45 AC_SUBST(LT_RELEASE)
    46 AC_SUBST(LT_CURRENT)
    47 AC_SUBST(LT_REVISION)
    48 AC_SUBST(LT_AGE)
    49 
    50 dnl Detect the canonical build and host environments
    51 dnl AC_CANONICAL_HOST
    52 
    53 dnl Check for tools
    54 AC_PROG_LIBTOOL
    55 AC_PROG_CC
    56 AC_PROG_CXX
    57 AC_PROG_INSTALL
    58 AC_PROG_MAKE_SET
    59 AC_CHECK_TOOL(WINDRES, [windres], [:])
    60 
    61 dnl Set up the compiler and linker flags
    62 INCLUDE="-I$srcdir/include"
    63 if test x$srcdir != x.; then
    64     # Remove SDL_config.h from the source directory, since it's the
    65     # default one, and we want to include the one that we generate.
    66     if test -f $srcdir/include/SDL_config.h; then
    67         rm $srcdir/include/SDL_config.h
    68     fi
    69     INCLUDE="-Iinclude $INCLUDE"
    70 fi
    71 case "$host" in
    72     *-*-cygwin*)
    73         # We build SDL on cygwin without the UNIX emulation layer
    74         BASE_CFLAGS="-I/usr/include/mingw -mno-cygwin"
    75         BASE_LDFLAGS="-mno-cygwin"
    76         ;;
    77     *)
    78         BASE_CFLAGS=""
    79         BASE_LDFLAGS=""
    80         ;;
    81 esac
    82 # Uncomment the following line if you want to force SDL and applications
    83 # built with it to be compiled for a particular architecture.
    84 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
    85 BUILD_CFLAGS="$CFLAGS $CPPFLAGS"
    86 # The default optimization for SDL 1.3 is -O3 (Bug #31)
    87 if test x$orig_CFLAGS = x; then
    88     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
    89 fi
    90 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
    91 BUILD_LDFLAGS="$LDFLAGS"
    92 EXTRA_LDFLAGS="$BASE_LDFLAGS"
    93 ## These are common directories to find software packages
    94 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
    95 #    if test -d $path/include; then
    96 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
    97 #    fi
    98 #    if test -d $path/lib; then
    99 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   100 #    fi
   101 #done
   102 SDL_CFLAGS="$BASE_CFLAGS"
   103 SDL_LIBS="-lSDL $BASE_LDFLAGS"
   104 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   105 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   106 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   107 
   108 dnl set this to use on systems that use lib64 instead of lib
   109 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   110 
   111 dnl Function to find a library in the compiler search path
   112 find_lib()
   113 {
   114     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   115     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   116     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   117     if test "$cross_compiling" = yes; then
   118         host_lib_path=""
   119     else
   120         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   121     fi
   122     for path in $gcc_bin_path $gcc_lib_path $env_lib_path $host_lib_path; do
   123         lib=[`ls -- $path/$1 2>/dev/null | sort | sed 's/.*\/\(.*\)/\1/; q'`]
   124         if test x$lib != x; then
   125             echo $lib
   126             return
   127         fi
   128     done
   129 }
   130 
   131 dnl Check for compiler characteristics
   132 AC_C_CONST
   133 AC_C_INLINE
   134 AC_C_VOLATILE
   135 
   136 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   137 AC_ARG_ENABLE(assertions,
   138 AC_HELP_STRING([--enable-assertions],
   139                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   140               , enable_assertions=auto)
   141 case "$enable_assertions" in
   142     auto) # Use optimization settings to determine assertion level
   143         ;;
   144     disabled)
   145         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   146         ;;
   147     release)
   148         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   149         ;;
   150     enabled)
   151         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   152         ;;
   153     paranoid)
   154         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   155         ;;
   156     *)
   157         AC_MSG_ERROR([*** unknown assertion level. stop.])
   158         ;;
   159 esac
   160 
   161 dnl See whether we can use gcc style dependency tracking
   162 AC_ARG_ENABLE(dependency-tracking,
   163 AC_HELP_STRING([--enable-dependency-tracking],
   164                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   165               , enable_dependency_tracking=yes)
   166 if test x$enable_dependency_tracking = xyes; then
   167     have_gcc_mmd_mt=no
   168     AC_MSG_CHECKING(for GCC -MMD -MT option)
   169     AC_TRY_COMPILE([
   170     #if !defined(__GNUC__) || __GNUC__ < 3
   171     #error Dependency tracking requires GCC 3.0 or newer
   172     #endif
   173     ],[
   174     ],[
   175     have_gcc_mmd_mt=yes
   176     ])
   177     AC_MSG_RESULT($have_gcc_mmd_mt)
   178 
   179     if test x$have_gcc_mmd_mt = xyes; then
   180         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   181     fi
   182 fi
   183 
   184 dnl See whether we are allowed to use the system C library
   185 AC_ARG_ENABLE(libc,
   186 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   187               , enable_libc=yes)
   188 if test x$enable_libc = xyes; then
   189     AC_DEFINE(HAVE_LIBC, 1, [ ])
   190 
   191     dnl Check for C library headers
   192     AC_HEADER_STDC
   193     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)
   194 
   195     dnl Check for typedefs, structures, etc.
   196     AC_TYPE_SIZE_T
   197 
   198     dnl Check for defines
   199     AC_CHECK_DEFINE(M_PI, math.h)
   200 
   201     dnl Checks for library functions.
   202     case "$host" in
   203     *-*-cygwin* | *-*-mingw32*)
   204         ;;
   205     *)
   206         AC_FUNC_ALLOCA
   207         ;;
   208     esac
   209 
   210     AC_FUNC_MEMCMP
   211     if test x$ac_cv_func_memcmp_working = xyes; then
   212         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   213     fi
   214     AC_FUNC_STRTOD
   215     if test x$ac_cv_func_strtod = xyes; then
   216         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   217     fi
   218     AC_CHECK_FUNC(mprotect,
   219         AC_TRY_COMPILE([
   220           #include <sys/types.h>
   221           #include <sys/mman.h>
   222         ],[
   223         ],[
   224         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   225         ]),
   226     )
   227     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp sscanf snprintf vsnprintf sigaction setjmp nanosleep sysconf sysctlbyname)
   228 
   229     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   230     AC_CHECK_FUNCS(atan atan2 ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
   231 
   232     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   233     AC_CHECK_FUNCS(iconv)
   234 
   235     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE(HAVE_SA_SIGACTION)], ,[#include <signal.h>])
   236 fi
   237 
   238 AC_CHECK_SIZEOF(void*)
   239 
   240 dnl See whether we can use gcc atomic operations on this architecture
   241 AC_ARG_ENABLE(gcc-atomics,
   242 AC_HELP_STRING([--enable-gcc-atomics],
   243                [Use gcc builtin atomics [[default=yes]]]),
   244               , enable_gcc_atomics=yes)
   245 if test x$enable_gcc_atomics = xyes; then
   246     have_gcc_atomics=no
   247     AC_MSG_CHECKING(for GCC builtin atomic operations)
   248     AC_TRY_LINK([
   249     ],[
   250     int a;
   251     void *x, *y, *z;
   252     __sync_lock_test_and_set(&a, 4);
   253     __sync_lock_test_and_set(&x, y);
   254     __sync_fetch_and_add(&a, 1);
   255     __sync_bool_compare_and_swap(&a, 5, 10);
   256     __sync_bool_compare_and_swap(&x, y, z);
   257     ],[
   258     have_gcc_atomics=yes
   259     ])
   260     AC_MSG_RESULT($have_gcc_atomics)
   261 
   262     if test x$have_gcc_atomics = xyes; then
   263         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   264     else
   265         # See if we have the minimum operation needed for GCC atomics
   266         AC_TRY_LINK([
   267         ],[
   268         int a;
   269         __sync_lock_test_and_set(&a, 1);
   270         __sync_lock_release(&a);
   271         ],[
   272         have_gcc_sync_lock_test_and_set=yes
   273         ])
   274         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   275             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   276         fi
   277     fi
   278 fi
   279 
   280 # Standard C sources
   281 SOURCES="$SOURCES $srcdir/src/*.c"
   282 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   283 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   284 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   285 SOURCES="$SOURCES $srcdir/src/events/*.c"
   286 SOURCES="$SOURCES $srcdir/src/file/*.c"
   287 SOURCES="$SOURCES $srcdir/src/render/*.c"
   288 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   289 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   290 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   291 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   292 SOURCES="$SOURCES $srcdir/src/video/*.c"
   293 
   294 dnl Enable/disable various subsystems of the SDL library
   295 
   296 AC_ARG_ENABLE(atomic,
   297 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   298               , enable_atomic=yes)
   299 if test x$enable_atomic != xyes; then
   300     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   301 fi
   302 AC_ARG_ENABLE(audio,
   303 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   304               , enable_audio=yes)
   305 if test x$enable_audio != xyes; then
   306     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   307 fi
   308 AC_ARG_ENABLE(video,
   309 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   310               , enable_video=yes)
   311 if test x$enable_video != xyes; then
   312     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   313 fi
   314 AC_ARG_ENABLE(render,
   315 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   316               , enable_render=yes)
   317 if test x$enable_render != xyes; then
   318     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   319 fi
   320 AC_ARG_ENABLE(events,
   321 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   322               , enable_events=yes)
   323 if test x$enable_events != xyes; then
   324     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   325 fi
   326 AC_ARG_ENABLE(joystick,
   327 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   328               , enable_joystick=yes)
   329 if test x$enable_joystick != xyes; then
   330     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   331 else
   332     SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   333 fi
   334 AC_ARG_ENABLE(haptic,
   335 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   336               , enable_haptic=yes)
   337 if test x$enable_haptic != xyes; then
   338     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   339 else
   340     SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   341 fi
   342 AC_ARG_ENABLE(power,
   343 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   344               , enable_power=yes)
   345 if test x$enable_power != xyes; then
   346     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   347 else
   348     SOURCES="$SOURCES $srcdir/src/power/*.c"
   349 fi
   350 AC_ARG_ENABLE(threads,
   351 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   352               , enable_threads=yes)
   353 if test x$enable_threads != xyes; then
   354     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   355 fi
   356 AC_ARG_ENABLE(timers,
   357 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   358               , enable_timers=yes)
   359 if test x$enable_timers != xyes; then
   360     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   361 fi
   362 AC_ARG_ENABLE(file,
   363 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   364               , enable_file=yes)
   365 if test x$enable_file != xyes; then
   366     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   367 fi
   368 AC_ARG_ENABLE(loadso,
   369 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   370               , enable_loadso=yes)
   371 if test x$enable_loadso != xyes; then
   372     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   373 fi
   374 AC_ARG_ENABLE(cpuinfo,
   375 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   376               , enable_cpuinfo=yes)
   377 if test x$enable_cpuinfo != xyes; then
   378     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   379 fi
   380 AC_ARG_ENABLE(atomic,
   381 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations [[default=yes]]]),
   382               , enable_atomic=yes)
   383 if test x$enable_atomic != xyes; then
   384     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   385 fi
   386 AC_ARG_ENABLE(assembly,
   387 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   388               , enable_assembly=yes)
   389 if test x$enable_assembly = xyes; then
   390     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   391 
   392     # Make sure that we don't generate floating point code that would
   393     # cause illegal instruction exceptions on older processors
   394     case "$host" in
   395         *-*-darwin*)
   396             # Don't need to worry about Apple hardware, it's all SSE capable
   397             default_ssemath=yes
   398             ;;
   399         *64-*-*)
   400             # x86 64-bit architectures all have SSE instructions
   401             default_ssemath=yes
   402             ;;
   403         *)
   404             default_ssemath=no
   405             ;;
   406     esac
   407     AC_ARG_ENABLE(ssemath,
   408 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=no]]]),
   409                   , enable_ssemath=$default_ssemath)
   410     if test x$enable_ssemath = xno; then
   411         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes; then
   412             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   413         fi
   414     fi
   415 
   416     dnl Check for various instruction support
   417     AC_ARG_ENABLE(mmx,
   418 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   419                   , enable_mmx=yes)
   420     if test x$enable_mmx = xyes; then
   421         save_CFLAGS="$CFLAGS"
   422         have_gcc_mmx=no
   423         AC_MSG_CHECKING(for GCC -mmmx option)
   424         mmx_CFLAGS="-mmmx"
   425         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   426 
   427         AC_TRY_COMPILE([
   428         #ifdef __MINGW32__
   429         #include <_mingw.h>
   430         #ifdef __MINGW64_VERSION_MAJOR
   431         #include <intrin.h>
   432         #else
   433         #include <mmintrin.h>
   434         #endif
   435         #else
   436         #include <mmintrin.h>
   437         #endif
   438         #ifndef __MMX__
   439         #error Assembler CPP flag not enabled
   440         #endif
   441         ],[
   442         ],[
   443         have_gcc_mmx=yes
   444         ])
   445         AC_MSG_RESULT($have_gcc_mmx)
   446         CFLAGS="$save_CFLAGS"
   447 
   448         if test x$have_gcc_mmx = xyes; then
   449             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   450         fi
   451     fi
   452 
   453     AC_ARG_ENABLE(3dnow,
   454 AC_HELP_STRING([--enable-3dnow], [use MMX assembly routines [[default=yes]]]),
   455                   , enable_3dnow=yes)
   456     if test x$enable_3dnow = xyes; then
   457         save_CFLAGS="$CFLAGS"
   458         have_gcc_3dnow=no
   459         AC_MSG_CHECKING(for GCC -m3dnow option)
   460         amd3dnow_CFLAGS="-m3dnow"
   461         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   462 
   463         AC_TRY_COMPILE([
   464         #include <mm3dnow.h>
   465         #ifndef __3dNOW__
   466         #error Assembler CPP flag not enabled
   467         #endif
   468         ],[
   469         ],[
   470         have_gcc_3dnow=yes
   471         ])
   472         AC_MSG_RESULT($have_gcc_3dnow)
   473         CFLAGS="$save_CFLAGS"
   474 
   475         if test x$have_gcc_3dnow = xyes; then
   476             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   477         fi
   478     fi
   479 
   480     AC_ARG_ENABLE(sse,
   481 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   482                   , enable_sse=yes)
   483     if test x$enable_sse = xyes; then
   484         save_CFLAGS="$CFLAGS"
   485         have_gcc_sse=no
   486         AC_MSG_CHECKING(for GCC -msse option)
   487         sse_CFLAGS="-msse"
   488         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   489 
   490         AC_TRY_COMPILE([
   491         #ifdef __MINGW32__
   492         #include <_mingw.h>
   493         #ifdef __MINGW64_VERSION_MAJOR
   494         #include <intrin.h>
   495         #else
   496         #include <xmmintrin.h>
   497         #endif
   498         #else
   499         #include <xmmintrin.h>
   500         #endif
   501         #ifndef __SSE__
   502         #error Assembler CPP flag not enabled
   503         #endif
   504         ],[
   505         ],[
   506         have_gcc_sse=yes
   507         ])
   508         AC_MSG_RESULT($have_gcc_sse)
   509         CFLAGS="$save_CFLAGS"
   510 
   511         if test x$have_gcc_sse = xyes; then
   512             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   513         fi
   514     fi
   515 
   516     AC_ARG_ENABLE(sse2,
   517 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=no]]]),
   518                   , enable_sse2=$default_ssemath)
   519     if test x$enable_sse2 = xyes; then
   520         save_CFLAGS="$CFLAGS"
   521         have_gcc_sse2=no
   522         AC_MSG_CHECKING(for GCC -msse2 option)
   523         sse2_CFLAGS="-msse2"
   524         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   525 
   526         AC_TRY_COMPILE([
   527         #ifdef __MINGW32__
   528         #include <_mingw.h>
   529         #ifdef __MINGW64_VERSION_MAJOR
   530         #include <intrin.h>
   531         #else
   532         #include <emmintrin.h>
   533         #endif
   534         #else
   535         #include <emmintrin.h>
   536         #endif
   537         #ifndef __SSE2__
   538         #error Assembler CPP flag not enabled
   539         #endif
   540         ],[
   541         ],[
   542         have_gcc_sse2=yes
   543         ])
   544         AC_MSG_RESULT($have_gcc_sse2)
   545         CFLAGS="$save_CFLAGS"
   546 
   547         if test x$have_gcc_sse2 = xyes; then
   548             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   549         fi
   550     fi
   551 
   552     AC_ARG_ENABLE(altivec,
   553 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   554                   , enable_altivec=yes)
   555     if test x$enable_altivec = xyes; then
   556         save_CFLAGS="$CFLAGS"
   557         have_gcc_altivec=no
   558         have_altivec_h_hdr=no
   559         altivec_CFLAGS="-maltivec"
   560         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   561 
   562         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   563         AC_TRY_COMPILE([
   564         #include <altivec.h>
   565         vector unsigned int vzero() {
   566             return vec_splat_u32(0);
   567         }
   568         ],[
   569         ],[
   570         have_gcc_altivec=yes
   571         have_altivec_h_hdr=yes
   572         ])
   573         AC_MSG_RESULT($have_gcc_altivec)
   574 
   575         if test x$have_gcc_altivec = xno; then
   576             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   577             AC_TRY_COMPILE([
   578             vector unsigned int vzero() {
   579                 return vec_splat_u32(0);
   580             }
   581             ],[
   582             ],[
   583             have_gcc_altivec=yes
   584             ])
   585             AC_MSG_RESULT($have_gcc_altivec)
   586         fi
   587 
   588         if test x$have_gcc_altivec = xno; then
   589             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   590             altivec_CFLAGS="-faltivec"
   591             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   592             AC_TRY_COMPILE([
   593             #include <altivec.h>
   594             vector unsigned int vzero() {
   595                 return vec_splat_u32(0);
   596             }
   597             ],[
   598             ],[
   599             have_gcc_altivec=yes
   600             have_altivec_h_hdr=yes
   601             ])
   602             AC_MSG_RESULT($have_gcc_altivec)
   603         fi
   604 
   605         if test x$have_gcc_altivec = xno; then
   606             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   607             AC_TRY_COMPILE([
   608             vector unsigned int vzero() {
   609                 return vec_splat_u32(0);
   610             }
   611             ],[
   612             ],[
   613             have_gcc_altivec=yes
   614             ])
   615             AC_MSG_RESULT($have_gcc_altivec)
   616         fi
   617         CFLAGS="$save_CFLAGS"
   618 
   619         if test x$have_gcc_altivec = xyes; then
   620             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   621             if test x$have_altivec_h_hdr = xyes; then
   622               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   623             fi
   624             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   625         fi
   626     fi
   627 fi
   628 
   629 dnl See if the OSS audio interface is supported
   630 CheckOSS()
   631 {
   632     AC_ARG_ENABLE(oss,
   633 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=yes]]]),
   634                   , enable_oss=yes)
   635     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   636         AC_MSG_CHECKING(for OSS audio support)
   637         have_oss=no
   638         if test x$have_oss != xyes; then
   639             AC_TRY_COMPILE([
   640               #include <sys/soundcard.h>
   641             ],[
   642               int arg = SNDCTL_DSP_SETFRAGMENT;
   643             ],[
   644             have_oss=yes
   645             ])
   646         fi
   647         if test x$have_oss != xyes; then
   648             AC_TRY_COMPILE([
   649               #include <soundcard.h>
   650             ],[
   651               int arg = SNDCTL_DSP_SETFRAGMENT;
   652             ],[
   653             have_oss=yes
   654             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   655             ])
   656         fi
   657         AC_MSG_RESULT($have_oss)
   658         if test x$have_oss = xyes; then
   659             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   660             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   661             have_audio=yes
   662 
   663             # We may need to link with ossaudio emulation library
   664             case "$host" in
   665                 *-*-openbsd*|*-*-netbsd*)
   666                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   667             esac
   668         fi
   669     fi
   670 }
   671 
   672 dnl See if the ALSA audio interface is supported
   673 CheckALSA()
   674 {
   675     AC_ARG_ENABLE(alsa,
   676 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   677                   , enable_alsa=yes)
   678     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   679         AM_PATH_ALSA(0.9.0, have_alsa=yes, have_alsa=no)
   680         # Restore all flags from before the ALSA detection runs
   681         CFLAGS="$alsa_save_CFLAGS"
   682         LDFLAGS="$alsa_save_LDFLAGS"
   683         LIBS="$alsa_save_LIBS"
   684         if test x$have_alsa = xyes; then
   685             AC_ARG_ENABLE(alsa-shared,
   686 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   687                           , enable_alsa_shared=yes)
   688             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   689 
   690             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   691             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   692             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   693             if test x$have_loadso != xyes && \
   694                test x$enable_alsa_shared = xyes; then
   695                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   696             fi
   697             if test x$have_loadso = xyes && \
   698                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   699                 echo "-- dynamic libasound -> $alsa_lib"
   700                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   701             else
   702                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   703             fi
   704             have_audio=yes
   705         fi
   706     fi
   707 }
   708 
   709 dnl Find the ESD includes and libraries
   710 CheckESD()
   711 {
   712     AC_ARG_ENABLE(esd,
   713 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   714                   , enable_esd=yes)
   715     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   716         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   717         if test x$have_esd = xyes; then
   718             AC_ARG_ENABLE(esd-shared,
   719 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   720                           , enable_esd_shared=yes)
   721             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   722 
   723             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   724             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   725             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   726             if test x$have_loadso != xyes && \
   727                test x$enable_esd_shared = xyes; then
   728                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   729             fi
   730             if test x$have_loadso = xyes && \
   731                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   732                 echo "-- dynamic libesd -> $esd_lib"
   733                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   734             else
   735                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   736             fi
   737             have_audio=yes
   738         fi
   739     fi
   740 }
   741 
   742 dnl Find PulseAudio
   743 CheckPulseAudio()
   744 {
   745     AC_ARG_ENABLE(pulseaudio,
   746 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   747                   , enable_pulseaudio=yes)
   748     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   749         audio_pulseaudio=no
   750 
   751         PULSEAUDIO_REQUIRED_VERSION=0.9
   752 
   753         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   754         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   755         if test x$PKG_CONFIG != xno; then
   756         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   757                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   758                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   759                 audio_pulseaudio=yes
   760             fi
   761         fi
   762         AC_MSG_RESULT($audio_pulseaudio)
   763 
   764         if test x$audio_pulseaudio = xyes; then
   765             AC_ARG_ENABLE(pulseaudio-shared,
   766 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   767                           , enable_pulseaudio_shared=yes)
   768             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   769 
   770             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   771             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   772             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   773             if test x$have_loadso != xyes && \
   774                test x$enable_pulseaudio_shared = xyes; then
   775                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   776             fi
   777             if test x$have_loadso = xyes && \
   778                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   779                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   780                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   781             else
   782                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   783             fi
   784             have_audio=yes
   785         fi
   786     fi
   787 }
   788 
   789 CheckARTSC()
   790 {
   791     AC_ARG_ENABLE(arts,
   792 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   793                   , enable_arts=yes)
   794     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   795         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   796         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   797             : # arts isn't installed
   798         else
   799             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
   800             ARTS_LIBS=`$ARTSCONFIG --libs`
   801             AC_MSG_CHECKING(for aRts development environment)
   802             audio_arts=no
   803             save_CFLAGS="$CFLAGS"
   804             CFLAGS="$CFLAGS $ARTS_CFLAGS"
   805             AC_TRY_COMPILE([
   806              #include <artsc.h>
   807             ],[
   808              arts_stream_t stream;
   809             ],[
   810             audio_arts=yes
   811             ])
   812             CFLAGS="$save_CFLAGS"
   813             AC_MSG_RESULT($audio_arts)
   814             if test x$audio_arts = xyes; then
   815                 AC_ARG_ENABLE(arts-shared,
   816 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
   817                               , enable_arts_shared=yes)
   818                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   819 
   820                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
   821                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
   822                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
   823                 if test x$have_loadso != xyes && \
   824                    test x$enable_arts_shared = xyes; then
   825                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
   826                 fi
   827                 if test x$have_loadso = xyes && \
   828                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
   829                     echo "-- dynamic libartsc -> $arts_lib"
   830                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
   831                 else
   832                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
   833                 fi
   834                 have_audio=yes
   835             fi
   836         fi
   837     fi
   838 }
   839 
   840 dnl See if the NAS audio interface is supported
   841 CheckNAS()
   842 {
   843     AC_ARG_ENABLE(nas,
   844 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
   845                   , enable_nas=yes)
   846     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
   847         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
   848         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
   849 
   850         AC_MSG_CHECKING(for NAS audio support)
   851         have_nas=no
   852 
   853         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
   854             have_nas=yes
   855             NAS_LIBS="-laudio"
   856 
   857         elif test -r /usr/X11R6/include/audio/audiolib.h; then
   858             have_nas=yes
   859             NAS_CFLAGS="-I/usr/X11R6/include/"
   860             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
   861 
   862         fi
   863 
   864         AC_MSG_RESULT($have_nas)
   865 
   866         if test x$have_nas = xyes; then
   867             AC_ARG_ENABLE(nas-shared,
   868 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
   869                           , enable_nas_shared=yes)
   870             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   871 
   872             if test x$have_loadso != xyes && \
   873                test x$enable_nas_shared = xyes; then
   874                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
   875             fi
   876             if test x$have_loadso = xyes && \
   877                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
   878                 echo "-- dynamic libaudio -> $nas_lib"
   879                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
   880             else
   881                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
   882             fi
   883 
   884             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
   885             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
   886             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
   887             have_audio=yes
   888         fi
   889     fi
   890 }
   891 
   892 dnl rcg07142001 See if the user wants the disk writer audio driver...
   893 CheckDiskAudio()
   894 {
   895     AC_ARG_ENABLE(diskaudio,
   896 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
   897                   , enable_diskaudio=yes)
   898     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
   899         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
   900         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
   901     fi
   902 }
   903 
   904 dnl rcg03142006 See if the user wants the dummy audio driver...
   905 CheckDummyAudio()
   906 {
   907     AC_ARG_ENABLE(dummyaudio,
   908 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
   909                   , enable_dummyaudio=yes)
   910     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
   911         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
   912         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
   913     fi
   914 }
   915 
   916 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
   917 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
   918 CheckVisibilityHidden()
   919 {
   920     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
   921     have_gcc_fvisibility=no
   922 
   923     visibility_CFLAGS="-fvisibility=hidden"
   924     save_CFLAGS="$CFLAGS"
   925     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
   926     AC_TRY_COMPILE([
   927     #if !defined(__GNUC__) || __GNUC__ < 4
   928     #error SDL only uses visibility attributes in GCC 4 or newer
   929     #endif
   930     ],[
   931     ],[
   932     have_gcc_fvisibility=yes
   933     ])
   934     AC_MSG_RESULT($have_gcc_fvisibility)
   935     CFLAGS="$save_CFLAGS"
   936 
   937     if test x$have_gcc_fvisibility = xyes; then
   938         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
   939     fi
   940 }
   941 
   942 dnl See if GCC's -mpreferred-stack-boundary is supported.
   943 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
   944 CheckStackBoundary()
   945 {
   946     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
   947     have_gcc_preferred_stack_boundary=no
   948 
   949     save_CFLAGS="$CFLAGS"
   950     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
   951     AC_TRY_COMPILE([
   952     int x = 0;
   953     ],[
   954     ],[
   955     have_gcc_preferred_stack_boundary=yes
   956     ])
   957     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
   958     CFLAGS="$save_CFLAGS"
   959 
   960     if test x$have_gcc_preferred_stack_boundary = xyes; then
   961         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
   962     fi
   963 }
   964 
   965 
   966 dnl See if GCC's -Wall is supported.
   967 CheckWarnAll()
   968 {
   969     AC_MSG_CHECKING(for GCC -Wall option)
   970     have_gcc_Wall=no
   971 
   972     save_CFLAGS="$CFLAGS"
   973     CFLAGS="$save_CFLAGS -Wall"
   974     AC_TRY_COMPILE([
   975     int x = 0;
   976     ],[
   977     ],[
   978     have_gcc_Wall=yes
   979     ])
   980     AC_MSG_RESULT($have_gcc_Wall)
   981     CFLAGS="$save_CFLAGS"
   982 
   983     if test x$have_gcc_Wall = xyes; then
   984         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
   985 
   986         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
   987         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
   988         need_gcc_Wno_multichar=no
   989         case "$host" in
   990             *-*-beos* | *-*-haiku*)
   991                 need_gcc_Wno_multichar=yes
   992                 ;;
   993         esac
   994         AC_MSG_RESULT($need_gcc_Wno_multichar)
   995         if test x$need_gcc_Wno_multichar = xyes; then
   996             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
   997         fi
   998     fi
   999 }
  1000 
  1001 
  1002 dnl Find the X11 include and library directories
  1003 CheckX11()
  1004 {
  1005 
  1006 
  1007     AC_ARG_ENABLE(video-x11,
  1008 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1009                   , enable_video_x11=yes)
  1010     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1011         case "$host" in
  1012             *-*-darwin*)
  1013                 # This isn't necessary for X11, but fixes GLX detection
  1014                 if test "x$x_includes" = xNONE && test "x$x_libraries" = xNONE; then
  1015                     x_includes="/usr/X11R6/include"
  1016                     x_libraries="/usr/X11R6/lib"
  1017                 fi
  1018                 ;;
  1019         esac
  1020         AC_PATH_X
  1021         AC_PATH_XTRA
  1022         if test x$have_x = xyes; then
  1023             # Only allow dynamically loaded X11 if the X11 function pointers
  1024             # will not end up in the global namespace, which causes problems
  1025             # with other libraries calling X11 functions.
  1026             x11_symbols_private=$have_gcc_fvisibility
  1027 
  1028             AC_ARG_ENABLE(x11-shared,
  1029 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1030                           , enable_x11_shared=maybe)
  1031 
  1032             case "$host" in
  1033                 *-*-darwin*)
  1034                     x11_symbols_private=yes
  1035                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1036                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1037                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1038                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1039                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1040                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1041                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1042                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1043                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1044                     ;;
  1045                 *)
  1046                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1047                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1048                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1049                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1050                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1051                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1052                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1053                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1054                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1055                     ;;
  1056             esac
  1057 
  1058             if test x$ac_cv_func_shmat != xyes; then
  1059                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1060             fi
  1061             CFLAGS="$CFLAGS $X_CFLAGS"
  1062             LDFLAGS="$LDFLAGS $X_LIBS"
  1063 
  1064             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1065             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1066             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1067 
  1068             if test x$enable_x11_shared = xmaybe; then
  1069                 enable_x11_shared=$x11_symbols_private
  1070             fi
  1071             if test x$have_loadso != xyes && \
  1072                test x$enable_x11_shared = xyes; then
  1073                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1074                 enable_x11_shared=no
  1075             fi
  1076             if test x$x11_symbols_private != xyes && \
  1077                test x$enable_x11_shared = xyes; then
  1078                 AC_MSG_WARN([You must have gcc4 (-fvisibility=hidden) for dynamic X11 loading])
  1079                 enable_x11_shared=no
  1080             fi
  1081 
  1082             if test x$have_loadso = xyes && \
  1083                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1084                 echo "-- dynamic libX11 -> $x11_lib"
  1085                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1086                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1087                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1088             else
  1089                 enable_x11_shared=no
  1090                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1091             fi
  1092             have_video=yes
  1093 
  1094             AC_ARG_ENABLE(video-x11-xcursor,
  1095 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1096                             , enable_video_x11_xcursor=yes)
  1097             if test x$enable_video_x11_xcursor = xyes; then
  1098                 definitely_enable_video_x11_xcursor=no
  1099                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1100                                 have_xcursor_h_hdr=yes,
  1101                                 have_xcursor_h_hdr=no,
  1102                                 [#include <X11/Xlib.h>
  1103                                 ])
  1104                 if test x$have_xcursor_h_hdr = xyes; then
  1105                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1106                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1107                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1108                         definitely_enable_video_x11_xcursor=yes
  1109                     else
  1110                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1111                         if test x$have_xcursor_lib = xyes ; then
  1112                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1113                             definitely_enable_video_x11_xcursor=yes
  1114                         fi
  1115                     fi
  1116                 fi
  1117             fi
  1118             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1119                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1120             fi
  1121             AC_ARG_ENABLE(video-x11-xinerama,
  1122 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1123                             , enable_video_x11_xinerama=yes)
  1124             if test x$enable_video_x11_xinerama = xyes; then
  1125                 definitely_enable_video_x11_xinerama=no
  1126                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1127                                 have_xinerama_h_hdr=yes,
  1128                                 have_xinerama_h_hdr=no,
  1129                                 [#include <X11/Xlib.h>
  1130                                 ])
  1131                 if test x$have_xinerama_h_hdr = xyes; then
  1132                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1133                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1134                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1135                         definitely_enable_video_x11_xinerama=yes
  1136                     else
  1137                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1138                         if test x$have_xinerama_lib = xyes ; then
  1139                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1140                             definitely_enable_video_x11_xinerama=yes
  1141                         fi
  1142                     fi
  1143                 fi
  1144             fi
  1145             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1146                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1147             fi
  1148             AC_ARG_ENABLE(video-x11-xinput,
  1149 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1150                             , enable_video_x11_xinput=yes)
  1151             if test x$enable_video_x11_xinput = xyes; then
  1152                 definitely_enable_video_x11_xinput=no
  1153                 AC_CHECK_HEADER(X11/extensions/XInput.h,
  1154                                 have_xinput_h_hdr=yes,
  1155                                 have_xinput_h_hdr=no,
  1156                                 [#include <X11/Xlib.h>
  1157                                 ])
  1158                 if test x$have_xinput_h_hdr = xyes; then
  1159                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1160                         echo "-- dynamic libXi -> $xinput_lib"
  1161                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT, "$xinput_lib", [ ])
  1162                         definitely_enable_video_x11_xinput=yes
  1163                     else
  1164                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1165                         if test x$have_xinput_lib = xyes ; then
  1166                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1167                             definitely_enable_video_x11_xinput=yes
  1168                         fi
  1169                     fi
  1170                 fi
  1171             fi
  1172             if test x$definitely_enable_video_x11_xinput = xyes; then
  1173                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT, 1, [ ])
  1174             fi
  1175             AC_ARG_ENABLE(video-x11-xrandr,
  1176 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1177                             , enable_video_x11_xrandr=yes)
  1178             if test x$enable_video_x11_xrandr = xyes; then
  1179                 definitely_enable_video_x11_xrandr=no
  1180                 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
  1181                                 have_xrandr_h_hdr=yes,
  1182                                 have_xrandr_h_hdr=no,
  1183                                 [#include <X11/Xlib.h>
  1184                                 ])
  1185                 if test x$have_xrandr_h_hdr = xyes; then
  1186                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1187                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1188                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1189                         definitely_enable_video_x11_xrandr=yes
  1190                     else
  1191                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1192                         if test x$have_xrandr_lib = xyes ; then
  1193                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1194                             definitely_enable_video_x11_xrandr=yes
  1195                         fi
  1196                     fi
  1197                 fi
  1198             fi
  1199             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1200                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1201             fi
  1202             AC_ARG_ENABLE(video-x11-scrnsaver,
  1203 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1204                             , enable_video_x11_scrnsaver=yes)
  1205             if test x$enable_video_x11_scrnsaver = xyes; then
  1206                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1207                                 have_scrnsaver_h_hdr=yes,
  1208                                 have_scrnsaver_h_hdr=no,
  1209                                 [#include <X11/Xlib.h>
  1210                                 ])
  1211                 if test x$have_scrnsaver_h_hdr = xyes; then
  1212                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1213                         echo "-- dynamic libXss -> $xss_lib"
  1214                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1215                         definitely_enable_video_x11_scrnsaver=yes
  1216                     else
  1217                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1218                         if test x$have_xss_lib = xyes ; then
  1219                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1220                             definitely_enable_video_x11_scrnsaver=yes
  1221                         fi
  1222                     fi
  1223                 fi
  1224             fi
  1225             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1226                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1227             fi
  1228             AC_ARG_ENABLE(video-x11-xshape,
  1229 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1230                             , enable_video_x11_xshape=yes)
  1231             if test x$enable_video_x11_xshape = xyes; then
  1232                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1233                                 have_shape_h_hdr=yes,
  1234                                 have_shape_h_hdr=no,
  1235                                 [#include <X11/Xlib.h>
  1236                                 ])
  1237                 if test x$have_shape_h_hdr = xyes; then
  1238                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1239                 fi
  1240             fi
  1241             AC_ARG_ENABLE(video-x11-vm,
  1242 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1243                             , enable_video_x11_vm=yes)
  1244             if test x$enable_video_x11_vm = xyes; then
  1245                 definitely_enable_video_x11_vm=no
  1246                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1247                                 have_vm_h_hdr=yes,
  1248                                 have_vm_h_hdr=no,
  1249                                 [#include <X11/Xlib.h>
  1250                                 ])
  1251                 if test x$have_vm_h_hdr = xyes; then
  1252                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1253                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1254                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1255                         definitely_enable_video_x11_vm=yes
  1256                     else
  1257                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1258                         if test x$have_vm_lib = xyes ; then
  1259                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1260                             definitely_enable_video_x11_vm=yes
  1261                         fi
  1262                     fi
  1263                 fi
  1264             fi
  1265             if test x$definitely_enable_video_x11_vm = xyes; then
  1266                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1267             fi
  1268         fi
  1269     fi
  1270 }
  1271 
  1272 dnl Set up the BWindow video driver if enabled
  1273 CheckBWINDOW()
  1274 {
  1275     if test x$enable_video = xyes; then
  1276         AC_DEFINE(SDL_VIDEO_DRIVER_BWINDOW, 1, [ ])
  1277         SOURCES="$SOURCES $srcdir/src/video/bwindow/*.cc"
  1278         have_video=yes
  1279     fi
  1280 }
  1281 
  1282 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1283 CheckCOCOA()
  1284 {
  1285     AC_ARG_ENABLE(video-cocoa,
  1286 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1287                   , enable_video_cocoa=yes)
  1288     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1289         save_CFLAGS="$CFLAGS"
  1290         dnl work around that we don't have Objective-C support in autoconf
  1291         CFLAGS="$CFLAGS -x objective-c"
  1292         AC_MSG_CHECKING(for Cocoa framework)
  1293         have_cocoa=no
  1294         AC_TRY_COMPILE([
  1295           #import <Cocoa/Cocoa.h>
  1296         ],[
  1297         ],[
  1298         have_cocoa=yes
  1299         ])
  1300         AC_MSG_RESULT($have_cocoa)
  1301         CFLAGS="$save_CFLAGS"
  1302         if test x$have_cocoa = xyes; then
  1303             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1304             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1305             have_video=yes
  1306         fi
  1307     fi
  1308 }
  1309 
  1310 dnl Find DirectFB
  1311 CheckDirectFB()
  1312 {
  1313     AC_ARG_ENABLE(video-directfb,
  1314 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1315                   , enable_video_directfb=no)
  1316     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1317         video_directfb=no
  1318 
  1319         DIRECTFB_REQUIRED_VERSION=1.0.0
  1320         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1321         if test x$DIRECTFBCONFIG = xno; then
  1322             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1323             if test x$PKG_CONFIG != xno; then
  1324                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1325                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1326                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1327                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1328                     video_directfb=yes
  1329                 fi
  1330             fi
  1331         else
  1332             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1333             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1334             set -- `directfb-config --version | sed 's/\./ /g'`
  1335             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1336             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1337                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1338                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1339                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1340                 video_directfb=yes
  1341             fi
  1342         fi
  1343         if test x$video_directfb = xyes; then
  1344             # SuSE 11.1 installs directfb-config without directfb-devel
  1345             save_CPPFLAGS="$CPPFLAGS"
  1346             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1347             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1348             CPPFLAGS="$save_CPPFLAGS"
  1349             video_directfb=$have_directfb_hdr
  1350         fi
  1351         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1352         AC_MSG_RESULT($video_directfb)
  1353 
  1354         if test x$video_directfb = xyes; then
  1355             AC_ARG_ENABLE(directfb-shared,
  1356 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1357                               , enable_directfb_shared=yes)
  1358 
  1359             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1360             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1361             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1362             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1363 
  1364             AC_MSG_CHECKING(for directfb dynamic loading support)
  1365             directfb_shared=no
  1366             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1367             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1368 AC_MSG_WARN("directfb $directfb_lib")
  1369             if test x$have_loadso != xyes && \
  1370                test x$enable_directfb_shared = xyes; then
  1371                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1372             fi
  1373             if test x$have_loadso = xyes && \
  1374                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1375                 directfb_shared=yes
  1376                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1377                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1378             else
  1379                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1380             fi
  1381             AC_MSG_RESULT($directfb_shared)
  1382             have_video=yes
  1383         fi
  1384     fi
  1385 }
  1386 
  1387 dnl Find FusionSound
  1388 CheckFusionSound()
  1389 {
  1390     AC_ARG_ENABLE(fusionsound,
  1391 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1392                   , enable_fusionsound=no)
  1393     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1394         fusionsound=no
  1395 
  1396         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1397 
  1398         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1399         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1400         if test x$PKG_CONFIG != xno; then
  1401             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1402                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1403                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1404                 fusionsound=yes
  1405             fi
  1406         fi
  1407         AC_MSG_RESULT($fusionsound)
  1408 
  1409         if test x$fusionsound = xyes; then
  1410             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1411             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1412             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1413             
  1414             AC_ARG_ENABLE(fusionsound-shared,
  1415 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1416                           , enable_fusionsound_shared=yes)
  1417             fusionsound_shared=no
  1418             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1419             if test x$have_loadso != xyes && \
  1420                test x$enable_fusionsound_shared = xyes; then
  1421                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1422             fi
  1423             if test x$have_loadso = xyes && \
  1424                test x$enable_fusionsound_shared = xyes; then
  1425                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1426                 fusionsound_shared=yes
  1427             else
  1428                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1429             fi
  1430             AC_MSG_RESULT($fusionsound_shared)
  1431             
  1432             have_audio=yes
  1433         fi
  1434     fi
  1435 }
  1436 
  1437 dnl rcg04172001 Set up the Null video driver.
  1438 CheckDummyVideo()
  1439 {
  1440     AC_ARG_ENABLE(video-dummy,
  1441 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1442                   , enable_video_dummy=yes)
  1443     if test x$enable_video_dummy = xyes; then
  1444         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1445         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1446         have_video=yes
  1447     fi
  1448 }
  1449 
  1450 dnl Check to see if OpenGL support is desired
  1451 AC_ARG_ENABLE(video-opengl,
  1452 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1453               , enable_video_opengl=yes)
  1454 
  1455 dnl Find OpenGL
  1456 CheckOpenGLX11()
  1457 {
  1458     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1459         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1460         video_opengl=no
  1461         AC_TRY_COMPILE([
  1462          #include <GL/gl.h>
  1463          #include <GL/glx.h>
  1464         ],[
  1465         ],[
  1466         video_opengl=yes
  1467         ])
  1468         AC_MSG_RESULT($video_opengl)
  1469         if test x$video_opengl = xyes; then
  1470             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1471             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1472             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1473         fi
  1474     fi
  1475 }
  1476 
  1477 dnl Check for Windows OpenGL
  1478 CheckWINDOWSGL()
  1479 {
  1480     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1481         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1482         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1483         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1484     fi
  1485 }
  1486 
  1487 dnl Check for BeOS OpenGL
  1488 CheckBeGL()
  1489 {
  1490     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1491         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1492         AC_DEFINE(SDL_VIDEO_OPENGL_BGL, 1, [ ])
  1493         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1494         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1495     fi
  1496 }
  1497 
  1498 dnl Check for MacOS OpenGL
  1499 CheckMacGL()
  1500 {
  1501     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1502         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1503         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  1504         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1505         case "$host" in
  1506             *-*-darwin*)
  1507                 if test x$enable_video_cocoa = xyes; then
  1508                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  1509                 fi
  1510         esac
  1511     fi
  1512 }
  1513 
  1514 dnl See if we can use the new unified event interface in Linux 2.4
  1515 CheckInputEvents()
  1516 {
  1517     dnl Check for Linux 2.4 unified input event interface support
  1518     AC_ARG_ENABLE(input-events,
  1519 AC_HELP_STRING([--enable-input-events], [use Linux 2.4 unified input interface [[default=yes]]]),
  1520                   , enable_input_events=yes)
  1521     if test x$enable_input_events = xyes; then
  1522         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  1523         use_input_events=no
  1524         AC_TRY_COMPILE([
  1525           #include <linux/input.h>
  1526         ],[
  1527           #ifndef EVIOCGNAME
  1528           #error EVIOCGNAME() ioctl not available
  1529           #endif
  1530         ],[
  1531         use_input_events=yes
  1532         ])
  1533         AC_MSG_RESULT($use_input_events)
  1534         if test x$use_input_events = xyes; then
  1535             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  1536         fi
  1537     fi
  1538 }
  1539 
  1540 dnl See if we can use the Touchscreen input library
  1541 CheckTslib()
  1542 {
  1543     AC_ARG_ENABLE(input-tslib,
  1544 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  1545                   , enable_input_tslib=yes)
  1546     if test x$enable_input_tslib = xyes; then
  1547         AC_MSG_CHECKING(for Touchscreen library support)
  1548         enable_input_tslib=no
  1549         AC_TRY_COMPILE([
  1550           #include "tslib.h"
  1551         ],[
  1552         ],[
  1553         enable_input_tslib=yes
  1554         ])
  1555         AC_MSG_RESULT($enable_input_tslib)
  1556         if test x$enable_input_tslib = xyes; then
  1557             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  1558             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  1559         fi
  1560     fi
  1561 }
  1562 
  1563 dnl See what type of thread model to use on Linux and Solaris
  1564 CheckPTHREAD()
  1565 {
  1566     dnl Check for pthread support
  1567     AC_ARG_ENABLE(pthreads,
  1568 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  1569                   , enable_pthreads=yes)
  1570     dnl This is used on Linux for glibc binary compatibility (Doh!)
  1571     AC_ARG_ENABLE(pthread-sem,
  1572 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  1573                   , enable_pthread_sem=yes)
  1574     case "$host" in
  1575         *-*-linux*|*-*-uclinux*)
  1576             pthread_cflags="-D_REENTRANT"
  1577             pthread_lib="-lpthread"
  1578             ;;
  1579         *-*-bsdi*)
  1580             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1581             pthread_lib=""
  1582             ;;
  1583         *-*-darwin*)
  1584             pthread_cflags="-D_THREAD_SAFE"
  1585 # causes Carbon.p complaints?
  1586 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1587             ;;
  1588         *-*-freebsd*|*-*-dragonfly*)
  1589             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1590             pthread_lib="-pthread"
  1591             ;;
  1592         *-*-netbsd*)
  1593             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1594             pthread_lib="-lpthread"
  1595             ;;
  1596         *-*-openbsd*)
  1597             pthread_cflags="-D_REENTRANT"
  1598             pthread_lib="-pthread"
  1599             ;;
  1600         *-*-solaris*)
  1601             pthread_cflags="-D_REENTRANT"
  1602             pthread_lib="-lpthread -lposix4"
  1603             ;;
  1604         *-*-sysv5*)
  1605             pthread_cflags="-D_REENTRANT -Kthread"
  1606             pthread_lib=""
  1607             ;;
  1608         *-*-aix*)
  1609             pthread_cflags="-D_REENTRANT -mthreads"
  1610             pthread_lib="-lpthread"
  1611             ;;
  1612         *-*-hpux11*)
  1613             pthread_cflags="-D_REENTRANT"
  1614             pthread_lib="-L/usr/lib -lpthread"
  1615             ;;
  1616         *)
  1617             pthread_cflags="-D_REENTRANT"
  1618             pthread_lib="-lpthread"
  1619             ;;
  1620     esac
  1621     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  1622         # Save the original compiler flags and libraries
  1623         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1624         # Add the pthread compiler flags and libraries
  1625         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  1626         # Check to see if we have pthread support on this system
  1627         AC_MSG_CHECKING(for pthreads)
  1628         use_pthreads=no
  1629         AC_TRY_LINK([
  1630          #include <pthread.h>
  1631         ],[
  1632          pthread_attr_t type;
  1633          pthread_attr_init(&type);
  1634         ],[
  1635         use_pthreads=yes
  1636         ])
  1637         AC_MSG_RESULT($use_pthreads)
  1638         # Restore the compiler flags and libraries
  1639         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1640 
  1641         # Do futher testing if we have pthread support...
  1642         if test x$use_pthreads = xyes; then
  1643             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  1644             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  1645             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  1646             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  1647             SDL_LIBS="$SDL_LIBS $pthread_lib"
  1648 
  1649             # Save the original compiler flags and libraries
  1650             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1651             # Add the pthread compiler flags and libraries
  1652             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  1653 
  1654             # Check to see if recursive mutexes are available
  1655             AC_MSG_CHECKING(for recursive mutexes)
  1656             has_recursive_mutexes=no
  1657             if test x$has_recursive_mutexes = xno; then
  1658                 AC_TRY_COMPILE([
  1659                   #include <pthread.h>
  1660                 ],[
  1661                   pthread_mutexattr_t attr;
  1662                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  1663                 ],[
  1664                 has_recursive_mutexes=yes
  1665                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  1666                 ])
  1667             fi
  1668             if test x$has_recursive_mutexes = xno; then
  1669                 AC_TRY_COMPILE([
  1670                   #include <pthread.h>
  1671                 ],[
  1672                   pthread_mutexattr_t attr;
  1673                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  1674                 ],[
  1675                 has_recursive_mutexes=yes
  1676                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  1677                 ])
  1678             fi
  1679             AC_MSG_RESULT($has_recursive_mutexes)
  1680 
  1681             # Check to see if pthread semaphore support is missing
  1682             if test x$enable_pthread_sem = xyes; then
  1683                 AC_MSG_CHECKING(for pthread semaphores)
  1684                 have_pthread_sem=no
  1685                 AC_TRY_COMPILE([
  1686                   #include <pthread.h>
  1687                   #include <semaphore.h>
  1688                 ],[
  1689                 ],[
  1690                 have_pthread_sem=yes
  1691                 ])
  1692                 AC_MSG_RESULT($have_pthread_sem)
  1693             fi
  1694 
  1695             AC_MSG_CHECKING(for pthread_spin_trylock)
  1696             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  1697               has_pthread_spin_trylock=yes
  1698               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  1699             ],[
  1700               has_pthread_spin_trylock=no
  1701             ])
  1702             AC_MSG_RESULT($has_pthread_spin_trylock)
  1703 
  1704             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes)
  1705             if test x$have_pthread_np_h = xyes; then
  1706                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  1707             fi
  1708 
  1709             # Check to see if pthread naming is available
  1710             AC_MSG_CHECKING(for pthread_setname_np)
  1711             AC_TRY_LINK_FUNC(pthread_setname_np, [
  1712               has_pthread_setname_np=yes
  1713               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  1714             ],[
  1715               has_pthread_setname_np=no
  1716             ])
  1717             AC_MSG_RESULT($has_pthread_setname_np)
  1718 
  1719             AC_MSG_CHECKING(for pthread_set_name_np)
  1720             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  1721               has_pthread_set_name_np=yes
  1722               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  1723             ],[
  1724               has_pthread_set_name_np=no
  1725             ])
  1726             AC_MSG_RESULT($has_pthread_set_name_np)
  1727 
  1728             # Restore the compiler flags and libraries
  1729             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1730 
  1731             # Basic thread creation functions
  1732             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  1733 
  1734             # Semaphores
  1735             # We can fake these with mutexes and condition variables if necessary
  1736             if test x$have_pthread_sem = xyes; then
  1737                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  1738             else
  1739                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  1740             fi
  1741 
  1742             # Mutexes
  1743             # We can fake these with semaphores if necessary
  1744             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  1745 
  1746             # Condition variables
  1747             # We can fake these with semaphores and mutexes if necessary
  1748             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  1749 
  1750             have_threads=yes
  1751         fi
  1752     fi
  1753 }
  1754 
  1755 dnl Determine whether the compiler can produce Windows executables
  1756 CheckWINDOWS()
  1757 {
  1758     AC_MSG_CHECKING(Windows compiler)
  1759     have_win32_gcc=no
  1760     AC_TRY_COMPILE([
  1761      #include <windows.h>
  1762     ],[
  1763     ],[
  1764     have_win32_gcc=yes
  1765     ])
  1766     AC_MSG_RESULT($have_win32_gcc)
  1767     if test x$have_win32_gcc != xyes; then
  1768        AC_MSG_ERROR([
  1769 *** Your compiler ($CC) does not produce Windows executables!
  1770        ])
  1771     fi
  1772 
  1773     AC_MSG_CHECKING(Windows CE)
  1774     have_wince=no
  1775     AC_TRY_COMPILE([
  1776 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  1777 #error This is not Windows CE
  1778 #endif
  1779     ],[
  1780     ],[
  1781     have_wince=yes
  1782     ])
  1783     AC_MSG_RESULT($have_wince)
  1784 
  1785     # This fixes Windows stack alignment with newer GCC
  1786     CheckStackBoundary
  1787 }
  1788 
  1789 dnl Find the DirectX includes and libraries
  1790 CheckDIRECTX()
  1791 {
  1792     AC_ARG_ENABLE(directx,
  1793 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  1794                   , enable_directx=yes)
  1795     if test x$enable_directx = xyes; then
  1796         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  1797         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  1798         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  1799         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  1800         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  1801     fi
  1802 }
  1803 
  1804 dnl Check for the dlfcn.h interface for dynamically loading objects
  1805 CheckDLOPEN()
  1806 {
  1807     AC_ARG_ENABLE(sdl-dlopen,
  1808 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  1809                   , enable_sdl_dlopen=yes)
  1810     if test x$enable_sdl_dlopen = xyes; then
  1811         AC_MSG_CHECKING(for dlopen)
  1812         have_dlopen=no
  1813         AC_TRY_COMPILE([
  1814          #include <dlfcn.h>
  1815         ],[
  1816          #if defined(MAC_OS_X_VERSION_MIN_REQUIRED) && MAC_OS_X_VERSION_MIN_REQUIRED <= 1020
  1817          #error Use dlcompat for Mac OS X 10.2 compatibility
  1818          #endif
  1819         ],[
  1820         have_dlopen=yes
  1821         ])
  1822         AC_MSG_RESULT($have_dlopen)
  1823 
  1824         if test x$have_dlopen = xyes; then
  1825             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  1826                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  1827                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  1828             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  1829             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  1830             have_loadso=yes
  1831         fi
  1832     fi
  1833 }
  1834 
  1835 dnl Check for the usbhid(3) library on *BSD
  1836 CheckUSBHID()
  1837 {
  1838     if test x$enable_joystick = xyes; then
  1839         AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  1840         if test x$have_libusbhid = xyes; then
  1841             AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  1842             AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  1843             USB_LIBS="$USB_LIBS -lusbhid"
  1844         else
  1845             AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  1846             AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  1847             AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  1848         fi
  1849             
  1850         save_CFLAGS="$CFLAGS"
  1851         CFLAGS="$CFLAGS $USB_CFLAGS"
  1852 
  1853         AC_MSG_CHECKING(for usbhid)
  1854         have_usbhid=no
  1855         AC_TRY_COMPILE([
  1856           #include <sys/types.h>
  1857           #if defined(HAVE_USB_H)
  1858           #include <usb.h>
  1859           #endif
  1860           #ifdef __DragonFly__
  1861           # include <bus/usb/usb.h>
  1862           # include <bus/usb/usbhid.h>
  1863           #else
  1864           # include <dev/usb/usb.h>
  1865           # include <dev/usb/usbhid.h>
  1866           #endif
  1867           #if defined(HAVE_USBHID_H)
  1868           #include <usbhid.h>
  1869           #elif defined(HAVE_LIBUSB_H)
  1870           #include <libusb.h>
  1871           #elif defined(HAVE_LIBUSBHID_H)
  1872           #include <libusbhid.h>
  1873           #endif
  1874         ],[
  1875           struct report_desc *repdesc;
  1876           struct usb_ctl_report *repbuf;
  1877           hid_kind_t hidkind;
  1878         ],[
  1879         have_usbhid=yes
  1880         ])
  1881         AC_MSG_RESULT($have_usbhid)
  1882 
  1883         if test x$have_usbhid = xyes; then
  1884             AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  1885             have_usbhid_ucr_data=no
  1886             AC_TRY_COMPILE([
  1887               #include <sys/types.h>
  1888               #if defined(HAVE_USB_H)
  1889               #include <usb.h>
  1890               #endif
  1891               #ifdef __DragonFly__
  1892               # include <bus/usb/usb.h>
  1893               # include <bus/usb/usbhid.h>
  1894               #else
  1895               # include <dev/usb/usb.h>
  1896               # include <dev/usb/usbhid.h>
  1897               #endif
  1898               #if defined(HAVE_USBHID_H)
  1899               #include <usbhid.h>
  1900               #elif defined(HAVE_LIBUSB_H)
  1901               #include <libusb.h>
  1902               #elif defined(HAVE_LIBUSBHID_H)
  1903               #include <libusbhid.h>
  1904               #endif
  1905             ],[
  1906               struct usb_ctl_report buf;
  1907               if (buf.ucr_data) { }
  1908             ],[
  1909             have_usbhid_ucr_data=yes
  1910             ])
  1911             if test x$have_usbhid_ucr_data = xyes; then
  1912                 USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  1913             fi
  1914             AC_MSG_RESULT($have_usbhid_ucr_data)
  1915             
  1916             AC_MSG_CHECKING(for new usbhid API)
  1917             have_usbhid_new=no
  1918             AC_TRY_COMPILE([
  1919               #include <sys/types.h>
  1920               #if defined(HAVE_USB_H)
  1921               #include <usb.h>
  1922               #endif
  1923               #ifdef __DragonFly__
  1924               #include <bus/usb/usb.h>
  1925               #include <bus/usb/usbhid.h>
  1926               #else
  1927               #include <dev/usb/usb.h>
  1928               #include <dev/usb/usbhid.h>
  1929               #endif
  1930               #if defined(HAVE_USBHID_H)
  1931               #include <usbhid.h>
  1932               #elif defined(HAVE_LIBUSB_H)
  1933               #include <libusb.h>
  1934               #elif defined(HAVE_LIBUSBHID_H)
  1935               #include <libusbhid.h>
  1936               #endif
  1937             ],[
  1938               report_desc_t d;
  1939               hid_start_parse(d, 1, 1);
  1940             ],[
  1941             have_usbhid_new=yes
  1942             ])
  1943             if test x$have_usbhid_new = xyes; then
  1944                 USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  1945             fi
  1946             AC_MSG_RESULT($have_usbhid_new)
  1947 
  1948             AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  1949             have_machine_joystick=no
  1950             AC_TRY_COMPILE([
  1951               #include <machine/joystick.h>
  1952             ],[
  1953               struct joystick t;
  1954             ],[
  1955             have_machine_joystick=yes
  1956             ])
  1957             if test x$have_machine_joystick = xyes; then
  1958                 AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  1959             fi
  1960             AC_MSG_RESULT($have_machine_joystick)
  1961 
  1962             AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  1963             SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  1964             EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  1965             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  1966             have_joystick=yes
  1967         fi
  1968         CFLAGS="$save_CFLAGS"
  1969     fi
  1970 }
  1971 
  1972 dnl Check for clock_gettime()
  1973 CheckClockGettime()
  1974 {
  1975     AC_ARG_ENABLE(clock_gettime,
  1976 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=no]]]),
  1977                   , enable_clock_gettime=no)
  1978     if test x$enable_clock_gettime = xyes; then
  1979         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  1980         if test x$have_clock_gettime = xyes; then
  1981             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  1982             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  1983         else
  1984             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  1985             if test x$have_clock_gettime = xyes; then
  1986                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  1987                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  1988             fi
  1989         fi
  1990     fi
  1991 }
  1992 
  1993 dnl Check for a valid linux/version.h
  1994 CheckLinuxVersion()
  1995 {
  1996     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  1997     if test x$have_linux_version_h = xyes; then
  1998         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  1999     fi
  2000 }
  2001 
  2002 dnl Check if we want to use RPATH
  2003 CheckRPATH()
  2004 {
  2005     AC_ARG_ENABLE(rpath,
  2006 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2007                   , enable_rpath=yes)
  2008 }
  2009 
  2010 dnl Set up the configuration based on the host platform!
  2011 case "$host" in
  2012     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2013         case "$host" in
  2014             *-*-linux*)         ARCH=linux ;;
  2015             *-*-uclinux*)       ARCH=linux ;;
  2016             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2017             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2018             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2019             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2020             *-*-bsdi*)          ARCH=bsdi ;;
  2021             *-*-freebsd*)       ARCH=freebsd ;;
  2022             *-*-dragonfly*)     ARCH=freebsd ;;
  2023             *-*-netbsd*)        ARCH=netbsd ;;
  2024             *-*-openbsd*)       ARCH=openbsd ;;
  2025             *-*-sysv5*)         ARCH=sysv5 ;;
  2026             *-*-solaris*)       ARCH=solaris ;;
  2027             *-*-hpux*)          ARCH=hpux ;;
  2028             *-*-aix*)           ARCH=aix ;;
  2029             *-*-minix*)         ARCH=minix ;;
  2030         esac
  2031         CheckVisibilityHidden
  2032         CheckDummyVideo
  2033         CheckDiskAudio
  2034         CheckDummyAudio
  2035         CheckDLOPEN
  2036         CheckOSS
  2037         CheckALSA
  2038         CheckPulseAudio
  2039         CheckARTSC
  2040         CheckESD
  2041         CheckNAS
  2042         CheckX11
  2043         CheckDirectFB
  2044         CheckFusionSound
  2045         CheckOpenGLX11
  2046         CheckInputEvents
  2047         CheckTslib
  2048         CheckUSBHID
  2049         CheckPTHREAD
  2050         CheckClockGettime
  2051         CheckLinuxVersion
  2052         CheckRPATH
  2053         # Set up files for the audio library
  2054         if test x$enable_audio = xyes; then
  2055           case $ARCH in
  2056             sysv5|solaris|hpux)
  2057                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2058                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2059                 have_audio=yes
  2060             ;;
  2061             netbsd|openbsd)
  2062                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2063                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2064                 have_audio=yes
  2065             ;;
  2066             aix)
  2067                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2068                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2069                 have_audio=yes
  2070             ;;
  2071           esac
  2072         fi
  2073         # Set up files for the joystick library
  2074         if test x$enable_joystick = xyes; then
  2075           case $ARCH in
  2076             linux)
  2077                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2078                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2079                 have_joystick=yes
  2080             ;;
  2081           esac
  2082         fi
  2083         # Set up files for the haptic library
  2084         if test x$enable_haptic = xyes; then
  2085            if test x$use_input_events = xyes; then
  2086              case $ARCH in
  2087                linux)
  2088                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2089                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2090                    have_haptic=yes
  2091                ;;
  2092              esac
  2093            fi
  2094         fi
  2095         # Set up files for the power library
  2096         if test x$enable_power = xyes; then
  2097              case $ARCH in
  2098                linux)
  2099                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2100                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2101                    have_power=yes
  2102                ;;
  2103              esac
  2104         fi
  2105         # Set up files for the timer library
  2106         if test x$enable_timers = xyes; then
  2107             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2108             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2109             have_timers=yes
  2110         fi
  2111         ;;
  2112     *-wince* | *-mingw32ce)
  2113         ARCH=win32
  2114         CheckDummyVideo
  2115         CheckDiskAudio
  2116         CheckDummyAudio
  2117         CheckWINDOWS
  2118         if test x$enable_video = xyes; then
  2119             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2120             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2121             have_video=yes
  2122             AC_ARG_ENABLE(render-d3d,
  2123 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2124                                 , enable_render_d3d=yes)
  2125             enable_render_d3d=no
  2126             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2127                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2128             fi
  2129         fi
  2130         # Set up files for the audio library
  2131         if test x$enable_audio = xyes; then
  2132             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2133             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2134             if test x$have_dsound = xyes; then
  2135                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2136                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2137             fi
  2138             if test x$have_xaudio2 = xyes; then
  2139                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2140                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2141             fi
  2142             have_audio=yes
  2143         fi
  2144         # Set up dummy files for the joystick for now
  2145         if test x$enable_joystick = xyes; then
  2146             AC_DEFINE(SDL_JOYSTICK_DUMMY, 1, [ ])
  2147             SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  2148             have_joystick=yes
  2149         fi
  2150         # Set up files for the thread library
  2151         if test x$enable_threads = xyes; then
  2152             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2153             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_sysmutex.c"
  2154             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_syssem.c"
  2155             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_systhread.c"
  2156             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2157             have_threads=yes
  2158         fi
  2159         # Set up files for the timer library
  2160         if test x$enable_timers = xyes; then
  2161             AC_DEFINE(SDL_TIMER_WINCE, 1, [ ])
  2162             SOURCES="$SOURCES $srcdir/src/timer/wince/*.c"
  2163             have_timers=yes
  2164         fi
  2165         # Set up files for the shared object loading library
  2166         if test x$enable_loadso = xyes; then
  2167             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2168             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2169             have_loadso=yes
  2170         fi
  2171         # Set up the system libraries we need
  2172         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer"
  2173 
  2174 	# mingw32ce library
  2175 	case "$host" in
  2176     	    *-mingw32ce)
  2177     		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lmingwex"
  2178     		;;
  2179     	    *)
  2180         	;;
  2181 	esac
  2182 
  2183         # The Windows platform requires special setup
  2184         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2185         EXTRA_CFLAGS="$EXTRA_CFLAGS -Dmain=SDL_main -D_WIN32_WCE=0x420"
  2186         EXTRA_LDFLAGS="-lSDLmain $EXTRA_LDFLAGS"
  2187         ;;
  2188     *-*-cygwin* | *-*-mingw32*)
  2189         ARCH=win32
  2190         if test "$build" != "$host"; then # cross-compiling
  2191             # Default cross-compile location
  2192             ac_default_prefix=/usr/local/cross-tools/$host
  2193         else
  2194             # Look for the location of the tools and install there
  2195             if test "$BUILD_PREFIX" != ""; then
  2196                 ac_default_prefix=$BUILD_PREFIX
  2197             fi
  2198         fi
  2199         CheckDummyVideo
  2200         CheckDiskAudio
  2201         CheckDummyAudio
  2202         CheckWINDOWS
  2203         CheckWINDOWSGL
  2204         CheckDIRECTX
  2205 
  2206         # Set up the core platform files
  2207         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2208 
  2209         # Set up files for the video library
  2210         if test x$enable_video = xyes; then
  2211             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2212             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2213             have_video=yes
  2214             AC_ARG_ENABLE(render-d3d,
  2215 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2216                                 , enable_render_d3d=yes)
  2217             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2218                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2219             fi
  2220         fi
  2221         # Set up files for the audio library
  2222         if test x$enable_audio = xyes; then
  2223             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2224             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2225             if test x$have_dsound = xyes; then
  2226                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2227                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2228             fi
  2229             if test x$have_xaudio2 = xyes; then
  2230                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2231                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2232             fi
  2233             have_audio=yes
  2234         fi
  2235         # Set up files for the joystick library
  2236         if test x$enable_joystick = xyes; then
  2237             if test x$have_dinput = xyes; then
  2238                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2239                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2240                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2241             else
  2242                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2243                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2244             fi
  2245             have_joystick=yes
  2246         fi
  2247         if test x$enable_haptic = xyes; then
  2248             if test x$have_dinput = xyes; then
  2249                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2250                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2251                 have_haptic=yes
  2252             fi
  2253         fi
  2254         if test x$enable_power = xyes; then
  2255             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2256             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2257             have_power=yes
  2258         fi
  2259         # Set up files for the thread library
  2260         if test x$enable_threads = xyes; then
  2261             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2262             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_sysmutex.c"
  2263             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_syssem.c"
  2264             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_systhread.c"
  2265             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2266             have_threads=yes
  2267         fi
  2268         # Set up files for the timer library
  2269         if test x$enable_timers = xyes; then
  2270             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2271             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2272             have_timers=yes
  2273         fi
  2274         # Set up files for the shared object loading library
  2275         if test x$enable_loadso = xyes; then
  2276             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2277             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2278             have_loadso=yes
  2279         fi
  2280         # Set up the system libraries we need
  2281         # SDL 1.3 is unicode, and unicows emulates this on Windows 98/ME
  2282         # You can get this here: http://libunicows.sourceforge.net/
  2283         #EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lunicows"
  2284         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lversion -luuid"
  2285         # The Windows platform requires special setup
  2286         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2287         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2288         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2289         SDL_LIBS="-lmingw32 -lSDLmain $SDL_LIBS -mwindows"
  2290         ;;
  2291     *-*-beos* | *-*-haiku*)
  2292         ARCH=beos
  2293         ac_default_prefix=/boot/develop/tools/gnupro
  2294         CheckDummyVideo
  2295         CheckDiskAudio
  2296         CheckDummyAudio
  2297         CheckBWINDOW
  2298         CheckBeGL
  2299         # Set up files for the audio library
  2300         if test x$enable_audio = xyes; then
  2301             AC_DEFINE(SDL_AUDIO_DRIVER_BEOSAUDIO, 1, [ ])
  2302             SOURCES="$SOURCES $srcdir/src/audio/baudio/*.cc"
  2303             have_audio=yes
  2304         fi
  2305         # Set up files for the joystick library
  2306         if test x$enable_joystick = xyes; then
  2307             AC_DEFINE(SDL_JOYSTICK_BEOS, 1, [ ])
  2308             SOURCES="$SOURCES $srcdir/src/joystick/beos/*.cc"
  2309             have_joystick=yes
  2310         fi
  2311         # Set up files for the thread library
  2312         if test x$enable_threads = xyes; then
  2313             AC_DEFINE(SDL_THREAD_BEOS, 1, [ ])
  2314             SOURCES="$SOURCES $srcdir/src/thread/beos/*.c"
  2315             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_sysmutex.c"
  2316             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2317             have_threads=yes
  2318         fi
  2319         # Set up files for the timer library
  2320         if test x$enable_timers = xyes; then
  2321             AC_DEFINE(SDL_TIMER_BEOS, 1, [ ])
  2322             SOURCES="$SOURCES $srcdir/src/timer/beos/*.c"
  2323             have_timers=yes
  2324         fi
  2325         # Set up files for the shared object loading library
  2326         if test x$enable_loadso = xyes; then
  2327             AC_DEFINE(SDL_LOADSO_BEOS, 1, [ ])
  2328             SOURCES="$SOURCES $srcdir/src/loadso/beos/*.c"
  2329             have_loadso=yes
  2330         fi
  2331         # Set up files for the system power library
  2332         if test x$enable_power = xyes; then
  2333             AC_DEFINE(SDL_POWER_BEOS, 1, [ ])
  2334             SOURCES="$SOURCES $srcdir/src/power/beos/*.c"
  2335             have_power=yes
  2336         fi
  2337         # The BeOS platform requires special setup.
  2338         SOURCES="$srcdir/src/main/beos/*.cc $SOURCES"
  2339         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2340         ;;
  2341     *-*-darwin* )
  2342         # This could be either full "Mac OS X", or plain "Darwin" which is
  2343         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  2344         # Next line is broken, and a few files below require Mac OS X (full)
  2345         ARCH=macosx
  2346 
  2347         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  2348         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  2349         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  2350 
  2351         CheckVisibilityHidden
  2352         CheckDummyVideo
  2353         CheckDiskAudio
  2354         CheckDummyAudio
  2355         CheckDLOPEN
  2356         CheckCOCOA
  2357         CheckX11
  2358         CheckMacGL
  2359         CheckOpenGLX11
  2360         CheckPTHREAD
  2361 
  2362         # Good optimization on Mac OS X, yes...
  2363         EXTRA_CFLAGS="$EXTRA_CFLAGS -falign-loops=16"
  2364 
  2365         # Need this or things might misbuild on a G3.
  2366         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  2367 
  2368         # Set up files for the audio library
  2369         if test x$enable_audio = xyes; then
  2370             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  2371             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2372             have_audio=yes
  2373         fi
  2374         # Set up files for the joystick library
  2375         if test x$enable_joystick = xyes; then
  2376             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  2377             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  2378             have_joystick=yes
  2379         fi
  2380         # Set up files for the haptic library
  2381         if test x$enable_haptic = xyes; then
  2382             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  2383             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2384             have_haptic=yes
  2385             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2386         fi
  2387         # Set up files for the power library
  2388         if test x$enable_power = xyes; then
  2389             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  2390             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  2391             have_power=yes
  2392         fi
  2393         # Set up files for the timer library
  2394         if test x$enable_timers = xyes; then
  2395             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2396             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2397             have_timers=yes
  2398         fi
  2399         # Set up additional files for the file library
  2400         if test x$enable_file = xyes; then
  2401             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2402         fi
  2403         # The Mac OS X platform requires special setup.
  2404         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2405         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  2406         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  2407         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  2408         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  2409         # If audio is used, add the AudioUnit framework
  2410         if test x$enable_audio = xyes; then
  2411             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  2412         fi
  2413         ;;
  2414     *)
  2415         AC_MSG_ERROR([
  2416 *** Unsupported host:  Please add to configure.in
  2417         ])
  2418         ;;
  2419 esac
  2420 
  2421 dnl Do this on all platforms, after everything else.
  2422 CheckWarnAll
  2423 
  2424 # Verify that we have all the platform specific files we need
  2425 
  2426 if test x$have_joystick != xyes; then
  2427     if test x$enable_joystick = xyes; then
  2428         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  2429     fi
  2430     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  2431 fi
  2432 if test x$have_haptic != xyes; then
  2433     if test x$enable_haptic = xyes; then
  2434         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  2435     fi
  2436     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  2437 fi
  2438 if test x$have_threads != xyes; then
  2439     if test x$enable_threads = xyes; then
  2440         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  2441     fi
  2442     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  2443 fi
  2444 if test x$have_timers != xyes; then
  2445     if test x$enable_timers = xyes; then
  2446         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  2447     fi
  2448     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  2449 fi
  2450 if test x$have_loadso != xyes; then
  2451     if test x$enable_loadso = xyes; then
  2452         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  2453     fi
  2454     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  2455 fi
  2456 if test x$SDLMAIN_SOURCES = x; then
  2457     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  2458 fi
  2459 
  2460 OBJECTS=`echo $SOURCES`
  2461 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  2462 for EXT in asm cc m c S; do
  2463     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  2464     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  2465 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  2466 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  2467 done
  2468 
  2469 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  2470 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  2471 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  2472 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  2473 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  2474 	\\$(WINDRES) \\$< \\$@,g"`
  2475 
  2476 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  2477 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  2478 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  2479 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  2480 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  2481 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  2482 
  2483 # Set runtime shared library paths as needed
  2484 
  2485 if test "x$enable_rpath" = "xyes"; then
  2486   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  2487     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  2488   fi
  2489   if test $ARCH = solaris; then
  2490     SDL_RLD_FLAGS="-R\${libdir}"
  2491   fi
  2492 else
  2493   SDL_RLD_FLAGS=""
  2494 fi
  2495 
  2496 case "$ARCH" in
  2497   macosx)
  2498     # Evil hack to allow static linking on Mac OS X
  2499     SDL_STATIC_LIBS="\${libdir}/libSDL.a $EXTRA_LDFLAGS"
  2500     ;;
  2501   *)
  2502     SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  2503     ;;
  2504 esac
  2505 
  2506 dnl Expand the cflags and libraries needed by apps using SDL
  2507 AC_SUBST(SDL_CFLAGS)
  2508 AC_SUBST(SDL_LIBS)
  2509 AC_SUBST(SDL_STATIC_LIBS)
  2510 AC_SUBST(SDL_RLD_FLAGS)
  2511 if test x$enable_shared = xyes; then
  2512     ENABLE_SHARED_TRUE=
  2513     ENABLE_SHARED_FALSE="#"
  2514 else
  2515     ENABLE_SHARED_TRUE="#"
  2516     ENABLE_SHARED_FALSE=
  2517 fi
  2518 if test x$enable_static = xyes; then
  2519     ENABLE_STATIC_TRUE=
  2520     ENABLE_STATIC_FALSE="#"
  2521 else
  2522     ENABLE_STATIC_TRUE="#"
  2523     ENABLE_STATIC_FALSE=
  2524 fi
  2525 AC_SUBST(ENABLE_SHARED_TRUE)
  2526 AC_SUBST(ENABLE_SHARED_FALSE)
  2527 AC_SUBST(ENABLE_STATIC_TRUE)
  2528 AC_SUBST(ENABLE_STATIC_FALSE)
  2529 
  2530 dnl Expand the sources and objects needed to build the library
  2531 AC_SUBST(ac_aux_dir)
  2532 AC_SUBST(INCLUDE)
  2533 AC_SUBST(OBJECTS)
  2534 AC_SUBST(VERSION_OBJECTS)
  2535 AC_SUBST(SDLMAIN_OBJECTS)
  2536 AC_SUBST(BUILD_CFLAGS)
  2537 AC_SUBST(EXTRA_CFLAGS)
  2538 AC_SUBST(BUILD_LDFLAGS)
  2539 AC_SUBST(EXTRA_LDFLAGS)
  2540 AC_SUBST(WINDRES)
  2541 
  2542 cat >Makefile.rules <<__EOF__
  2543 
  2544 # Build rules for objects
  2545 -include \$(OBJECTS:.lo=.d)
  2546 
  2547 # Special dependency for SDL.c, since it depends on SDL_revision.h
  2548 $srcdir/src/SDL.c: update-revision
  2549 $DEPENDS
  2550 $VERSION_DEPENDS
  2551 $SDLMAIN_DEPENDS
  2552 __EOF__
  2553 
  2554 AC_CONFIG_FILES([
  2555     Makefile:Makefile.in:Makefile.rules sdl-config SDL.spec sdl.pc
  2556 ])
  2557 AC_OUTPUT