configure.in
author Sam Lantinga <slouken@libsdl.org>
Tue, 19 Jun 2012 12:29:53 -0400
changeset 6329 77dcb8c486e9
parent 6327 7c37af802e63
child 6340 eadb3790009f
permissions -rw-r--r--
Added command-line cross-compile support for iOS - Gabriel Jacobo will be adding iosbuild.sh and documentation for the process.
     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="$CFLAGS"
    10 
    11 dnl Set various version strings - taken gratefully from the GTk sources
    12 #
    13 # Making releases:
    14 # Edit include/SDL_version.h and change the version, then:
    15 #   SDL_MICRO_VERSION += 1;
    16 #   SDL_INTERFACE_AGE += 1;
    17 #   SDL_BINARY_AGE += 1;
    18 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    19 # if backwards compatibility has been broken,
    20 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    21 #
    22 SDL_MAJOR_VERSION=2
    23 SDL_MINOR_VERSION=0
    24 SDL_MICRO_VERSION=0
    25 SDL_INTERFACE_AGE=0
    26 SDL_BINARY_AGE=0
    27 SDL_VERSION=$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     INCLUDE="-Iinclude $INCLUDE"
    65 elif test -d .hg; then
    66     AC_MSG_ERROR([
    67 *** When building from Mercurial you should configure and build in a
    68     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    69 ])
    70 fi
    71 case "$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 $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
    86 # The default optimization for SDL is -O3 (Bug #31)
    87 if test x$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="-lSDL2 $BASE_LDFLAGS"
   104 CPPFLAGS="$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 $X_LIBS -lX11 -lXext"
  1091             fi
  1092             have_video=yes
  1093 
  1094             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1095             have_const_param_XextAddDisplay=no
  1096             AC_TRY_COMPILE([
  1097               #include <X11/Xlib.h>
  1098               #include <X11/Xproto.h>
  1099               #include <X11/extensions/Xext.h>
  1100               #include <X11/extensions/extutil.h>
  1101               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1102             ],[
  1103             ],[
  1104             have_const_param_XextAddDisplay=yes
  1105             AC_DEFINE(SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY)
  1106             ])
  1107             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1108 
  1109             AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1110             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1111 
  1112             AC_ARG_ENABLE(video-x11-xcursor,
  1113 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1114                             , enable_video_x11_xcursor=yes)
  1115             if test x$enable_video_x11_xcursor = xyes; then
  1116                 definitely_enable_video_x11_xcursor=no
  1117                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1118                                 have_xcursor_h_hdr=yes,
  1119                                 have_xcursor_h_hdr=no,
  1120                                 [#include <X11/Xlib.h>
  1121                                 ])
  1122                 if test x$have_xcursor_h_hdr = xyes; then
  1123                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1124                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1125                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1126                         definitely_enable_video_x11_xcursor=yes
  1127                     else
  1128                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1129                         if test x$have_xcursor_lib = xyes ; then
  1130                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1131                             definitely_enable_video_x11_xcursor=yes
  1132                         fi
  1133                     fi
  1134                 fi
  1135             fi
  1136             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1137                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1138             fi
  1139             AC_ARG_ENABLE(video-x11-xinerama,
  1140 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1141                             , enable_video_x11_xinerama=yes)
  1142             if test x$enable_video_x11_xinerama = xyes; then
  1143                 definitely_enable_video_x11_xinerama=no
  1144                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1145                                 have_xinerama_h_hdr=yes,
  1146                                 have_xinerama_h_hdr=no,
  1147                                 [#include <X11/Xlib.h>
  1148                                 ])
  1149                 if test x$have_xinerama_h_hdr = xyes; then
  1150                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1151                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1152                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1153                         definitely_enable_video_x11_xinerama=yes
  1154                     else
  1155                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1156                         if test x$have_xinerama_lib = xyes ; then
  1157                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1158                             definitely_enable_video_x11_xinerama=yes
  1159                         fi
  1160                     fi
  1161                 fi
  1162             fi
  1163             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1164                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1165             fi
  1166             AC_ARG_ENABLE(video-x11-xinput,
  1167 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1168                             , enable_video_x11_xinput=yes)
  1169             if test x$enable_video_x11_xinput = xyes; then
  1170                 definitely_enable_video_x11_xinput=no
  1171                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1172                                 have_xinput_h_hdr=yes,
  1173                                 have_xinput_h_hdr=no,
  1174                                 [#include <X11/Xlib.h>
  1175                                 ])
  1176                 if test x$have_xinput_h_hdr = xyes; then
  1177                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1178                         echo "-- dynamic libXi -> $xinput_lib"
  1179                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1180                         definitely_enable_video_x11_xinput=yes
  1181                     else
  1182                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1183                         if test x$have_xinput_lib = xyes ; then
  1184                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1185                             definitely_enable_video_x11_xinput=yes
  1186                         fi
  1187                     fi
  1188                 fi
  1189             fi
  1190             if test x$definitely_enable_video_x11_xinput = xyes; then
  1191                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1192                 AC_MSG_CHECKING(for xinput2 multitouch)
  1193             	have_xinput2_multitouch=no
  1194             	AC_TRY_COMPILE([
  1195               		#include <X11/Xlib.h>
  1196              		#include <X11/Xproto.h>
  1197 			#include <X11/extensions/XInput2.h>
  1198             	],[
  1199 Status 
  1200 XIAllowTouchEvents(Display *a,int b,unsigned int c,Window d,int f)
  1201 {
  1202     return (Status)0;
  1203 }
  1204             	],[
  1205             	have_xinput2_multitouch=yes
  1206             	AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
  1207             	])
  1208             	AC_MSG_RESULT($have_xinput2_multitouch)
  1209             fi
  1210             AC_ARG_ENABLE(video-x11-xrandr,
  1211 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1212                             , enable_video_x11_xrandr=yes)
  1213             if test x$enable_video_x11_xrandr = xyes; then
  1214                 definitely_enable_video_x11_xrandr=no
  1215                 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
  1216                                 have_xrandr_h_hdr=yes,
  1217                                 have_xrandr_h_hdr=no,
  1218                                 [#include <X11/Xlib.h>
  1219                                 ])
  1220                 if test x$have_xrandr_h_hdr = xyes; then
  1221                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1222                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1223                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1224                         definitely_enable_video_x11_xrandr=yes
  1225                     else
  1226                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1227                         if test x$have_xrandr_lib = xyes ; then
  1228                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1229                             definitely_enable_video_x11_xrandr=yes
  1230                         fi
  1231                     fi
  1232                 fi
  1233             fi
  1234             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1235                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1236             fi
  1237             AC_ARG_ENABLE(video-x11-scrnsaver,
  1238 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1239                             , enable_video_x11_scrnsaver=yes)
  1240             if test x$enable_video_x11_scrnsaver = xyes; then
  1241                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1242                                 have_scrnsaver_h_hdr=yes,
  1243                                 have_scrnsaver_h_hdr=no,
  1244                                 [#include <X11/Xlib.h>
  1245                                 ])
  1246                 if test x$have_scrnsaver_h_hdr = xyes; then
  1247                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1248                         echo "-- dynamic libXss -> $xss_lib"
  1249                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1250                         definitely_enable_video_x11_scrnsaver=yes
  1251                     else
  1252                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1253                         if test x$have_xss_lib = xyes ; then
  1254                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1255                             definitely_enable_video_x11_scrnsaver=yes
  1256                         fi
  1257                     fi
  1258                 fi
  1259             fi
  1260             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1261                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1262             fi
  1263             AC_ARG_ENABLE(video-x11-xshape,
  1264 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1265                             , enable_video_x11_xshape=yes)
  1266             if test x$enable_video_x11_xshape = xyes; then
  1267                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1268                                 have_shape_h_hdr=yes,
  1269                                 have_shape_h_hdr=no,
  1270                                 [#include <X11/Xlib.h>
  1271                                 ])
  1272                 if test x$have_shape_h_hdr = xyes; then
  1273                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1274                 fi
  1275             fi
  1276             AC_ARG_ENABLE(video-x11-vm,
  1277 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1278                             , enable_video_x11_vm=yes)
  1279             if test x$enable_video_x11_vm = xyes; then
  1280                 definitely_enable_video_x11_vm=no
  1281                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1282                                 have_vm_h_hdr=yes,
  1283                                 have_vm_h_hdr=no,
  1284                                 [#include <X11/Xlib.h>
  1285                                 ])
  1286                 if test x$have_vm_h_hdr = xyes; then
  1287                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1288                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1289                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1290                         definitely_enable_video_x11_vm=yes
  1291                     else
  1292                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1293                         if test x$have_vm_lib = xyes ; then
  1294                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1295                             definitely_enable_video_x11_vm=yes
  1296                         fi
  1297                     fi
  1298                 fi
  1299             fi
  1300             if test x$definitely_enable_video_x11_vm = xyes; then
  1301                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1302             fi
  1303         fi
  1304     fi
  1305 }
  1306 
  1307 dnl Set up the BWindow video driver if enabled
  1308 CheckBWINDOW()
  1309 {
  1310     if test x$enable_video = xyes; then
  1311         AC_DEFINE(SDL_VIDEO_DRIVER_BWINDOW, 1, [ ])
  1312         SOURCES="$SOURCES $srcdir/src/video/bwindow/*.cc"
  1313         have_video=yes
  1314     fi
  1315 }
  1316 
  1317 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  1318 CheckCOCOA()
  1319 {
  1320     AC_ARG_ENABLE(video-cocoa,
  1321 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  1322                   , enable_video_cocoa=yes)
  1323     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  1324         save_CFLAGS="$CFLAGS"
  1325         dnl work around that we don't have Objective-C support in autoconf
  1326         CFLAGS="$CFLAGS -x objective-c"
  1327         AC_MSG_CHECKING(for Cocoa framework)
  1328         have_cocoa=no
  1329         AC_TRY_COMPILE([
  1330           #import <Cocoa/Cocoa.h>
  1331         ],[
  1332         ],[
  1333         have_cocoa=yes
  1334         ])
  1335         AC_MSG_RESULT($have_cocoa)
  1336         CFLAGS="$save_CFLAGS"
  1337         if test x$have_cocoa = xyes; then
  1338             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  1339             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  1340             have_video=yes
  1341         fi
  1342     fi
  1343 }
  1344 
  1345 dnl Find DirectFB
  1346 CheckDirectFB()
  1347 {
  1348     AC_ARG_ENABLE(video-directfb,
  1349 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  1350                   , enable_video_directfb=no)
  1351     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  1352         video_directfb=no
  1353 
  1354         DIRECTFB_REQUIRED_VERSION=1.0.0
  1355         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  1356         if test x$DIRECTFBCONFIG = xno; then
  1357             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1358             if test x$PKG_CONFIG != xno; then
  1359                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  1360                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  1361                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  1362                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  1363                     video_directfb=yes
  1364                 fi
  1365             fi
  1366         else
  1367             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  1368             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1369             set -- `directfb-config --version | sed 's/\./ /g'`
  1370             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  1371             if test $HAVE_VERSION -ge $NEED_VERSION; then
  1372                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  1373                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  1374                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  1375                 video_directfb=yes
  1376             fi
  1377         fi
  1378         if test x$video_directfb = xyes; then
  1379             # SuSE 11.1 installs directfb-config without directfb-devel
  1380             save_CPPFLAGS="$CPPFLAGS"
  1381             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  1382             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  1383             CPPFLAGS="$save_CPPFLAGS"
  1384             video_directfb=$have_directfb_hdr
  1385         fi
  1386         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  1387         AC_MSG_RESULT($video_directfb)
  1388 
  1389         if test x$video_directfb = xyes; then
  1390             AC_ARG_ENABLE(directfb-shared,
  1391 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  1392                               , enable_directfb_shared=yes)
  1393 
  1394             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  1395             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  1396             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  1397             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  1398 
  1399             AC_MSG_CHECKING(for directfb dynamic loading support)
  1400             directfb_shared=no
  1401             directfb_lib=[`find_lib "libdirectfb.so.*" "$DIRECTFB_LIBS"`]
  1402             # | sed 's/.*\/\(.*\)/\1/; q'`]
  1403 AC_MSG_WARN("directfb $directfb_lib")
  1404             if test x$have_loadso != xyes && \
  1405                test x$enable_directfb_shared = xyes; then
  1406                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  1407             fi
  1408             if test x$have_loadso = xyes && \
  1409                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  1410                 directfb_shared=yes
  1411                 echo "-- $directfb_lib_spec -> $directfb_lib"
  1412                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  1413             else
  1414                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  1415             fi
  1416             AC_MSG_RESULT($directfb_shared)
  1417             have_video=yes
  1418         fi
  1419     fi
  1420 }
  1421 
  1422 dnl Find FusionSound
  1423 CheckFusionSound()
  1424 {
  1425     AC_ARG_ENABLE(fusionsound,
  1426 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1427                   , enable_fusionsound=no)
  1428     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1429         fusionsound=no
  1430 
  1431         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1432 
  1433         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1434         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1435         if test x$PKG_CONFIG != xno; then
  1436             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1437                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1438                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1439                 fusionsound=yes
  1440             fi
  1441         fi
  1442         AC_MSG_RESULT($fusionsound)
  1443 
  1444         if test x$fusionsound = xyes; then
  1445             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1446             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1447             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1448             
  1449             AC_ARG_ENABLE(fusionsound-shared,
  1450 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1451                           , enable_fusionsound_shared=yes)
  1452             fusionsound_shared=no
  1453             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1454             if test x$have_loadso != xyes && \
  1455                test x$enable_fusionsound_shared = xyes; then
  1456                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1457             fi
  1458             if test x$have_loadso = xyes && \
  1459                test x$enable_fusionsound_shared = xyes; then
  1460                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1461                 fusionsound_shared=yes
  1462             else
  1463                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1464             fi
  1465             AC_MSG_RESULT($fusionsound_shared)
  1466             
  1467             have_audio=yes
  1468         fi
  1469     fi
  1470 }
  1471 
  1472 dnl rcg04172001 Set up the Null video driver.
  1473 CheckDummyVideo()
  1474 {
  1475     AC_ARG_ENABLE(video-dummy,
  1476 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  1477                   , enable_video_dummy=yes)
  1478     if test x$enable_video_dummy = xyes; then
  1479         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  1480         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  1481         have_video=yes
  1482     fi
  1483 }
  1484 
  1485 dnl Check to see if OpenGL support is desired
  1486 AC_ARG_ENABLE(video-opengl,
  1487 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  1488               , enable_video_opengl=yes)
  1489 
  1490 dnl Find OpenGL
  1491 CheckOpenGLX11()
  1492 {
  1493     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1494         AC_MSG_CHECKING(for OpenGL (GLX) support)
  1495         video_opengl=no
  1496         AC_TRY_COMPILE([
  1497          #include <GL/gl.h>
  1498          #include <GL/glx.h>
  1499         ],[
  1500         ],[
  1501         video_opengl=yes
  1502         ])
  1503         AC_MSG_RESULT($video_opengl)
  1504         if test x$video_opengl = xyes; then
  1505             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1506             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  1507             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1508         fi
  1509     fi
  1510 }
  1511 
  1512 dnl Check to see if OpenGL ES support is desired
  1513 AC_ARG_ENABLE(video-opengles,
  1514 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  1515               , enable_video_opengles=yes)
  1516 
  1517 dnl Find OpenGL ES
  1518 CheckOpenGLESX11()
  1519 {
  1520     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  1521         AC_MSG_CHECKING(for OpenGL ES (EGL) support)
  1522         video_opengles=no
  1523         AC_TRY_COMPILE([
  1524          #include <EGL/egl.h>
  1525         ],[
  1526         ],[
  1527         video_opengles=yes
  1528         ])
  1529         AC_MSG_RESULT($video_opengles)
  1530         if test x$video_opengles = xyes; then
  1531             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  1532             video_opengles_v1=no
  1533             AC_TRY_COMPILE([
  1534              #include <GLES/gl.h>
  1535              #include <GLES/glext.h>
  1536             ],[
  1537             ],[
  1538             video_opengles_v1=yes
  1539             ])
  1540             AC_MSG_RESULT($video_opengles_v1)
  1541             if test x$video_opengles_v1 = xyes; then
  1542                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  1543                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  1544             fi
  1545             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  1546             video_opengles_v2=no
  1547             AC_TRY_COMPILE([
  1548              #include <GLES2/gl2.h>
  1549              #include <GLES2/gl2ext.h>
  1550             ],[
  1551             ],[
  1552             video_opengles_v2=yes
  1553             ])
  1554             AC_MSG_RESULT($video_opengles_v2)
  1555             if test x$video_opengles_v2 = xyes; then
  1556                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1557                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1558             fi
  1559         fi
  1560     fi
  1561 }
  1562 
  1563 dnl Check for Windows OpenGL
  1564 CheckWINDOWSGL()
  1565 {
  1566     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1567         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1568         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  1569         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1570     fi
  1571 }
  1572 
  1573 dnl Check for BeOS OpenGL
  1574 CheckBeGL()
  1575 {
  1576     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1577         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1578         AC_DEFINE(SDL_VIDEO_OPENGL_BGL, 1, [ ])
  1579         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1580         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  1581     fi
  1582 }
  1583 
  1584 dnl Check for MacOS OpenGL
  1585 CheckMacGL()
  1586 {
  1587     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  1588         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  1589         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  1590         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  1591         case "$host" in
  1592             *-*-darwin*)
  1593                 if test x$enable_video_cocoa = xyes; then
  1594                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGL"
  1595                 fi
  1596         esac
  1597     fi
  1598 }
  1599 
  1600 dnl See if we can use the new unified event interface in Linux 2.4
  1601 CheckInputEvents()
  1602 {
  1603     dnl Check for Linux 2.4 unified input event interface support
  1604     AC_ARG_ENABLE(input-events,
  1605 AC_HELP_STRING([--enable-input-events], [use Linux 2.4 unified input interface [[default=yes]]]),
  1606                   , enable_input_events=yes)
  1607     if test x$enable_input_events = xyes; then
  1608         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  1609         use_input_events=no
  1610         AC_TRY_COMPILE([
  1611           #include <linux/input.h>
  1612         ],[
  1613           #ifndef EVIOCGNAME
  1614           #error EVIOCGNAME() ioctl not available
  1615           #endif
  1616         ],[
  1617         use_input_events=yes
  1618         ])
  1619         AC_MSG_RESULT($use_input_events)
  1620         if test x$use_input_events = xyes; then
  1621             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  1622         fi
  1623     fi
  1624 }
  1625 
  1626 dnl See if we can use the Touchscreen input library
  1627 CheckTslib()
  1628 {
  1629     AC_ARG_ENABLE(input-tslib,
  1630 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  1631                   , enable_input_tslib=yes)
  1632     if test x$enable_input_tslib = xyes; then
  1633         AC_MSG_CHECKING(for Touchscreen library support)
  1634         enable_input_tslib=no
  1635         AC_TRY_COMPILE([
  1636           #include "tslib.h"
  1637         ],[
  1638         ],[
  1639         enable_input_tslib=yes
  1640         ])
  1641         AC_MSG_RESULT($enable_input_tslib)
  1642         if test x$enable_input_tslib = xyes; then
  1643             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  1644             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  1645         fi
  1646     fi
  1647 }
  1648 
  1649 dnl See what type of thread model to use on Linux and Solaris
  1650 CheckPTHREAD()
  1651 {
  1652     dnl Check for pthread support
  1653     AC_ARG_ENABLE(pthreads,
  1654 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  1655                   , enable_pthreads=yes)
  1656     dnl This is used on Linux for glibc binary compatibility (Doh!)
  1657     AC_ARG_ENABLE(pthread-sem,
  1658 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  1659                   , enable_pthread_sem=yes)
  1660     case "$host" in
  1661         *-*-linux*|*-*-uclinux*)
  1662             pthread_cflags="-D_REENTRANT"
  1663             pthread_lib="-lpthread"
  1664             ;;
  1665         *-*-bsdi*)
  1666             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1667             pthread_lib=""
  1668             ;;
  1669         *-*-darwin*)
  1670             pthread_cflags="-D_THREAD_SAFE"
  1671 # causes Carbon.p complaints?
  1672 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1673             ;;
  1674         *-*-freebsd*|*-*-dragonfly*)
  1675             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1676             pthread_lib="-pthread"
  1677             ;;
  1678         *-*-netbsd*)
  1679             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  1680             pthread_lib="-lpthread"
  1681             ;;
  1682         *-*-openbsd*)
  1683             pthread_cflags="-D_REENTRANT"
  1684             pthread_lib="-pthread"
  1685             ;;
  1686         *-*-solaris*)
  1687             pthread_cflags="-D_REENTRANT"
  1688             pthread_lib="-lpthread -lposix4"
  1689             ;;
  1690         *-*-sysv5*)
  1691             pthread_cflags="-D_REENTRANT -Kthread"
  1692             pthread_lib=""
  1693             ;;
  1694         *-*-aix*)
  1695             pthread_cflags="-D_REENTRANT -mthreads"
  1696             pthread_lib="-lpthread"
  1697             ;;
  1698         *-*-hpux11*)
  1699             pthread_cflags="-D_REENTRANT"
  1700             pthread_lib="-L/usr/lib -lpthread"
  1701             ;;
  1702         *)
  1703             pthread_cflags="-D_REENTRANT"
  1704             pthread_lib="-lpthread"
  1705             ;;
  1706     esac
  1707     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  1708         # Save the original compiler flags and libraries
  1709         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1710         # Add the pthread compiler flags and libraries
  1711         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  1712         # Check to see if we have pthread support on this system
  1713         AC_MSG_CHECKING(for pthreads)
  1714         use_pthreads=no
  1715         AC_TRY_LINK([
  1716          #include <pthread.h>
  1717         ],[
  1718          pthread_attr_t type;
  1719          pthread_attr_init(&type);
  1720         ],[
  1721         use_pthreads=yes
  1722         ])
  1723         AC_MSG_RESULT($use_pthreads)
  1724         # Restore the compiler flags and libraries
  1725         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1726 
  1727         # Do futher testing if we have pthread support...
  1728         if test x$use_pthreads = xyes; then
  1729             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  1730             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  1731             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  1732             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  1733             SDL_LIBS="$SDL_LIBS $pthread_lib"
  1734 
  1735             # Save the original compiler flags and libraries
  1736             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1737             # Add the pthread compiler flags and libraries
  1738             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  1739 
  1740             # Check to see if recursive mutexes are available
  1741             AC_MSG_CHECKING(for recursive mutexes)
  1742             has_recursive_mutexes=no
  1743             if test x$has_recursive_mutexes = xno; then
  1744                 AC_TRY_COMPILE([
  1745                   #include <pthread.h>
  1746                 ],[
  1747                   pthread_mutexattr_t attr;
  1748                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  1749                 ],[
  1750                 has_recursive_mutexes=yes
  1751                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  1752                 ])
  1753             fi
  1754             if test x$has_recursive_mutexes = xno; then
  1755                 AC_TRY_COMPILE([
  1756                   #include <pthread.h>
  1757                 ],[
  1758                   pthread_mutexattr_t attr;
  1759                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  1760                 ],[
  1761                 has_recursive_mutexes=yes
  1762                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  1763                 ])
  1764             fi
  1765             AC_MSG_RESULT($has_recursive_mutexes)
  1766 
  1767             # Check to see if pthread semaphore support is missing
  1768             if test x$enable_pthread_sem = xyes; then
  1769                 AC_MSG_CHECKING(for pthread semaphores)
  1770                 have_pthread_sem=no
  1771                 AC_TRY_COMPILE([
  1772                   #include <pthread.h>
  1773                   #include <semaphore.h>
  1774                 ],[
  1775                 ],[
  1776                 have_pthread_sem=yes
  1777                 ])
  1778                 AC_MSG_RESULT($have_pthread_sem)
  1779             fi
  1780             if test x$have_pthread_sem = xyes; then
  1781                 AC_MSG_CHECKING(for sem_timedwait)
  1782                 have_sem_timedwait=no
  1783                 AC_TRY_LINK([
  1784                   #include <pthread.h>
  1785                   #include <semaphore.h>
  1786                 ],[
  1787                   sem_timedwait(NULL, NULL);
  1788                 ],[
  1789                 have_sem_timedwait=yes
  1790                 AC_DEFINE(HAVE_SEM_TIMEDWAIT)
  1791                 ])
  1792                 AC_MSG_RESULT($have_sem_timedwait)
  1793             fi
  1794 
  1795             AC_MSG_CHECKING(for pthread_spin_trylock)
  1796             AC_TRY_LINK_FUNC(pthread_spin_trylock, [
  1797               has_pthread_spin_trylock=yes
  1798               AC_DEFINE(HAVE_PTHREAD_SPINLOCK, 1, [ ])
  1799             ],[
  1800               has_pthread_spin_trylock=no
  1801             ])
  1802             AC_MSG_RESULT($has_pthread_spin_trylock)
  1803 
  1804             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes)
  1805             if test x$have_pthread_np_h = xyes; then
  1806                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  1807             fi
  1808 
  1809             # Check to see if pthread naming is available
  1810             AC_MSG_CHECKING(for pthread_setname_np)
  1811             AC_TRY_LINK_FUNC(pthread_setname_np, [
  1812               has_pthread_setname_np=yes
  1813               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  1814             ],[
  1815               has_pthread_setname_np=no
  1816             ])
  1817             AC_MSG_RESULT($has_pthread_setname_np)
  1818 
  1819             AC_MSG_CHECKING(for pthread_set_name_np)
  1820             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  1821               has_pthread_set_name_np=yes
  1822               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  1823             ],[
  1824               has_pthread_set_name_np=no
  1825             ])
  1826             AC_MSG_RESULT($has_pthread_set_name_np)
  1827 
  1828             # Restore the compiler flags and libraries
  1829             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1830 
  1831             # Basic thread creation functions
  1832             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  1833 
  1834             # Semaphores
  1835             # We can fake these with mutexes and condition variables if necessary
  1836             if test x$have_pthread_sem = xyes; then
  1837                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  1838             else
  1839                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  1840             fi
  1841 
  1842             # Mutexes
  1843             # We can fake these with semaphores if necessary
  1844             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  1845 
  1846             # Condition variables
  1847             # We can fake these with semaphores and mutexes if necessary
  1848             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  1849 
  1850             have_threads=yes
  1851         fi
  1852     fi
  1853 }
  1854 
  1855 dnl Determine whether the compiler can produce Windows executables
  1856 CheckWINDOWS()
  1857 {
  1858     AC_MSG_CHECKING(Windows compiler)
  1859     have_win32_gcc=no
  1860     AC_TRY_COMPILE([
  1861      #include <windows.h>
  1862     ],[
  1863     ],[
  1864     have_win32_gcc=yes
  1865     ])
  1866     AC_MSG_RESULT($have_win32_gcc)
  1867     if test x$have_win32_gcc != xyes; then
  1868        AC_MSG_ERROR([
  1869 *** Your compiler ($CC) does not produce Windows executables!
  1870        ])
  1871     fi
  1872 
  1873     AC_MSG_CHECKING(Windows CE)
  1874     have_wince=no
  1875     AC_TRY_COMPILE([
  1876 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  1877 #error This is not Windows CE
  1878 #endif
  1879     ],[
  1880     ],[
  1881     have_wince=yes
  1882     ])
  1883     AC_MSG_RESULT($have_wince)
  1884 
  1885     # This fixes Windows stack alignment with newer GCC
  1886     CheckStackBoundary
  1887 }
  1888 
  1889 dnl Find the DirectX includes and libraries
  1890 CheckDIRECTX()
  1891 {
  1892     AC_ARG_ENABLE(directx,
  1893 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  1894                   , enable_directx=yes)
  1895     if test x$enable_directx = xyes; then
  1896         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  1897         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  1898         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  1899         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  1900         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  1901     fi
  1902 }
  1903 
  1904 dnl Check for the dlfcn.h interface for dynamically loading objects
  1905 CheckDLOPEN()
  1906 {
  1907     AC_ARG_ENABLE(sdl-dlopen,
  1908 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  1909                   , enable_sdl_dlopen=yes)
  1910     if test x$enable_sdl_dlopen = xyes; then
  1911         AC_MSG_CHECKING(for dlopen)
  1912         have_dlopen=no
  1913         AC_TRY_COMPILE([
  1914          #include <dlfcn.h>
  1915         ],[
  1916          #if defined(MAC_OS_X_VERSION_MIN_REQUIRED) && MAC_OS_X_VERSION_MIN_REQUIRED <= 1020
  1917          #error Use dlcompat for Mac OS X 10.2 compatibility
  1918          #endif
  1919         ],[
  1920         have_dlopen=yes
  1921         ])
  1922         AC_MSG_RESULT($have_dlopen)
  1923 
  1924         if test x$have_dlopen = xyes; then
  1925             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  1926                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  1927                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  1928             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  1929             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  1930             have_loadso=yes
  1931         fi
  1932     fi
  1933 }
  1934 
  1935 dnl Check for the usbhid(3) library on *BSD
  1936 CheckUSBHID()
  1937 {
  1938     if test x$enable_joystick = xyes; then
  1939         AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  1940         if test x$have_libusbhid = xyes; then
  1941             AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  1942             AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  1943             USB_LIBS="$USB_LIBS -lusbhid"
  1944         else
  1945             AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  1946             AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  1947             AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  1948         fi
  1949             
  1950         save_CFLAGS="$CFLAGS"
  1951         CFLAGS="$CFLAGS $USB_CFLAGS"
  1952 
  1953         AC_MSG_CHECKING(for usbhid)
  1954         have_usbhid=no
  1955         AC_TRY_COMPILE([
  1956           #include <sys/types.h>
  1957           #if defined(HAVE_USB_H)
  1958           #include <usb.h>
  1959           #endif
  1960           #ifdef __DragonFly__
  1961           # include <bus/usb/usb.h>
  1962           # include <bus/usb/usbhid.h>
  1963           #else
  1964           # include <dev/usb/usb.h>
  1965           # include <dev/usb/usbhid.h>
  1966           #endif
  1967           #if defined(HAVE_USBHID_H)
  1968           #include <usbhid.h>
  1969           #elif defined(HAVE_LIBUSB_H)
  1970           #include <libusb.h>
  1971           #elif defined(HAVE_LIBUSBHID_H)
  1972           #include <libusbhid.h>
  1973           #endif
  1974         ],[
  1975           struct report_desc *repdesc;
  1976           struct usb_ctl_report *repbuf;
  1977           hid_kind_t hidkind;
  1978         ],[
  1979         have_usbhid=yes
  1980         ])
  1981         AC_MSG_RESULT($have_usbhid)
  1982 
  1983         if test x$have_usbhid = xyes; then
  1984             AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  1985             have_usbhid_ucr_data=no
  1986             AC_TRY_COMPILE([
  1987               #include <sys/types.h>
  1988               #if defined(HAVE_USB_H)
  1989               #include <usb.h>
  1990               #endif
  1991               #ifdef __DragonFly__
  1992               # include <bus/usb/usb.h>
  1993               # include <bus/usb/usbhid.h>
  1994               #else
  1995               # include <dev/usb/usb.h>
  1996               # include <dev/usb/usbhid.h>
  1997               #endif
  1998               #if defined(HAVE_USBHID_H)
  1999               #include <usbhid.h>
  2000               #elif defined(HAVE_LIBUSB_H)
  2001               #include <libusb.h>
  2002               #elif defined(HAVE_LIBUSBHID_H)
  2003               #include <libusbhid.h>
  2004               #endif
  2005             ],[
  2006               struct usb_ctl_report buf;
  2007               if (buf.ucr_data) { }
  2008             ],[
  2009             have_usbhid_ucr_data=yes
  2010             ])
  2011             if test x$have_usbhid_ucr_data = xyes; then
  2012                 USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  2013             fi
  2014             AC_MSG_RESULT($have_usbhid_ucr_data)
  2015             
  2016             AC_MSG_CHECKING(for new usbhid API)
  2017             have_usbhid_new=no
  2018             AC_TRY_COMPILE([
  2019               #include <sys/types.h>
  2020               #if defined(HAVE_USB_H)
  2021               #include <usb.h>
  2022               #endif
  2023               #ifdef __DragonFly__
  2024               #include <bus/usb/usb.h>
  2025               #include <bus/usb/usbhid.h>
  2026               #else
  2027               #include <dev/usb/usb.h>
  2028               #include <dev/usb/usbhid.h>
  2029               #endif
  2030               #if defined(HAVE_USBHID_H)
  2031               #include <usbhid.h>
  2032               #elif defined(HAVE_LIBUSB_H)
  2033               #include <libusb.h>
  2034               #elif defined(HAVE_LIBUSBHID_H)
  2035               #include <libusbhid.h>
  2036               #endif
  2037             ],[
  2038               report_desc_t d;
  2039               hid_start_parse(d, 1, 1);
  2040             ],[
  2041             have_usbhid_new=yes
  2042             ])
  2043             if test x$have_usbhid_new = xyes; then
  2044                 USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  2045             fi
  2046             AC_MSG_RESULT($have_usbhid_new)
  2047 
  2048             AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  2049             have_machine_joystick=no
  2050             AC_TRY_COMPILE([
  2051               #include <machine/joystick.h>
  2052             ],[
  2053               struct joystick t;
  2054             ],[
  2055             have_machine_joystick=yes
  2056             ])
  2057             if test x$have_machine_joystick = xyes; then
  2058                 AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  2059             fi
  2060             AC_MSG_RESULT($have_machine_joystick)
  2061 
  2062             AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  2063             SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  2064             EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  2065             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  2066             have_joystick=yes
  2067         fi
  2068         CFLAGS="$save_CFLAGS"
  2069     fi
  2070 }
  2071 
  2072 dnl Check for clock_gettime()
  2073 CheckClockGettime()
  2074 {
  2075     AC_ARG_ENABLE(clock_gettime,
  2076 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=no]]]),
  2077                   , enable_clock_gettime=no)
  2078     if test x$enable_clock_gettime = xyes; then
  2079         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  2080         if test x$have_clock_gettime = xyes; then
  2081             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2082             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  2083         else
  2084             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  2085             if test x$have_clock_gettime = xyes; then
  2086                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  2087                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  2088             fi
  2089         fi
  2090     fi
  2091 }
  2092 
  2093 dnl Check for a valid linux/version.h
  2094 CheckLinuxVersion()
  2095 {
  2096     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  2097     if test x$have_linux_version_h = xyes; then
  2098         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  2099     fi
  2100 }
  2101 
  2102 dnl Check if we want to use RPATH
  2103 CheckRPATH()
  2104 {
  2105     AC_ARG_ENABLE(rpath,
  2106 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  2107                   , enable_rpath=yes)
  2108 }
  2109 
  2110 dnl Set up the configuration based on the host platform!
  2111 case "$host" in
  2112     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*)
  2113         case "$host" in
  2114             *-*-linux*)         ARCH=linux ;;
  2115             *-*-uclinux*)       ARCH=linux ;;
  2116             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  2117             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  2118             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  2119             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  2120             *-*-bsdi*)          ARCH=bsdi ;;
  2121             *-*-freebsd*)       ARCH=freebsd ;;
  2122             *-*-dragonfly*)     ARCH=freebsd ;;
  2123             *-*-netbsd*)        ARCH=netbsd ;;
  2124             *-*-openbsd*)       ARCH=openbsd ;;
  2125             *-*-sysv5*)         ARCH=sysv5 ;;
  2126             *-*-solaris*)       ARCH=solaris ;;
  2127             *-*-hpux*)          ARCH=hpux ;;
  2128             *-*-aix*)           ARCH=aix ;;
  2129             *-*-minix*)         ARCH=minix ;;
  2130         esac
  2131         CheckVisibilityHidden
  2132         CheckDummyVideo
  2133         CheckDiskAudio
  2134         CheckDummyAudio
  2135         CheckDLOPEN
  2136         CheckOSS
  2137         CheckALSA
  2138         CheckPulseAudio
  2139         CheckARTSC
  2140         CheckESD
  2141         CheckNAS
  2142         CheckX11
  2143         CheckDirectFB
  2144         CheckFusionSound
  2145         CheckOpenGLX11
  2146         CheckOpenGLESX11
  2147         CheckInputEvents
  2148         CheckTslib
  2149         CheckUSBHID
  2150         CheckPTHREAD
  2151         CheckClockGettime
  2152         CheckLinuxVersion
  2153         CheckRPATH
  2154         # Set up files for the audio library
  2155         if test x$enable_audio = xyes; then
  2156           case $ARCH in
  2157             sysv5|solaris|hpux)
  2158                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  2159                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  2160                 have_audio=yes
  2161             ;;
  2162             netbsd|openbsd)
  2163                 AC_DEFINE(SDL_AUDIO_DRIVER_BSD, 1, [ ])
  2164                 SOURCES="$SOURCES $srcdir/src/audio/bsd/*.c"
  2165                 have_audio=yes
  2166             ;;
  2167             aix)
  2168                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  2169                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  2170                 have_audio=yes
  2171             ;;
  2172           esac
  2173         fi
  2174         # Set up files for the joystick library
  2175         if test x$enable_joystick = xyes; then
  2176           case $ARCH in
  2177             linux)
  2178                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  2179                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  2180                 have_joystick=yes
  2181             ;;
  2182           esac
  2183         fi
  2184         # Set up files for the haptic library
  2185         if test x$enable_haptic = xyes; then
  2186            if test x$use_input_events = xyes; then
  2187              case $ARCH in
  2188                linux)
  2189                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  2190                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  2191                    have_haptic=yes
  2192                ;;
  2193              esac
  2194            fi
  2195         fi
  2196         # Set up files for the power library
  2197         if test x$enable_power = xyes; then
  2198              case $ARCH in
  2199                linux)
  2200                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  2201                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  2202                    have_power=yes
  2203                ;;
  2204              esac
  2205         fi
  2206         # Set up files for the timer library
  2207         if test x$enable_timers = xyes; then
  2208             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2209             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2210             have_timers=yes
  2211         fi
  2212         ;;
  2213     *-wince* | *-mingw32ce)
  2214         ARCH=win32
  2215         CheckDummyVideo
  2216         CheckDiskAudio
  2217         CheckDummyAudio
  2218         CheckWINDOWS
  2219         if test x$enable_video = xyes; then
  2220             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2221             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2222             have_video=yes
  2223             AC_ARG_ENABLE(render-d3d,
  2224 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2225                                 , enable_render_d3d=yes)
  2226             enable_render_d3d=no
  2227             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2228                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2229             fi
  2230         fi
  2231         # Set up files for the audio library
  2232         if test x$enable_audio = xyes; then
  2233             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2234             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2235             if test x$have_dsound = xyes; then
  2236                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2237                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2238             fi
  2239             if test x$have_xaudio2 = xyes; then
  2240                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2241                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2242             fi
  2243             have_audio=yes
  2244         fi
  2245         # Set up dummy files for the joystick for now
  2246         if test x$enable_joystick = xyes; then
  2247             AC_DEFINE(SDL_JOYSTICK_DUMMY, 1, [ ])
  2248             SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  2249             have_joystick=yes
  2250         fi
  2251         # Set up files for the thread library
  2252         if test x$enable_threads = xyes; then
  2253             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2254             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_sysmutex.c"
  2255             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_syssem.c"
  2256             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_systhread.c"
  2257             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2258             have_threads=yes
  2259         fi
  2260         # Set up files for the timer library
  2261         if test x$enable_timers = xyes; then
  2262             AC_DEFINE(SDL_TIMER_WINCE, 1, [ ])
  2263             SOURCES="$SOURCES $srcdir/src/timer/wince/*.c"
  2264             have_timers=yes
  2265         fi
  2266         # Set up files for the shared object loading library
  2267         if test x$enable_loadso = xyes; then
  2268             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2269             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2270             have_loadso=yes
  2271         fi
  2272         # Set up the system libraries we need
  2273         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer"
  2274 
  2275 	# mingw32ce library
  2276 	case "$host" in
  2277     	    *-mingw32ce)
  2278     		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lmingwex"
  2279     		;;
  2280     	    *)
  2281         	;;
  2282 	esac
  2283 
  2284         # The Windows platform requires special setup
  2285         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2286         EXTRA_CFLAGS="$EXTRA_CFLAGS -Dmain=SDL_main -D_WIN32_WCE=0x420"
  2287         EXTRA_LDFLAGS="-lSDL2main $EXTRA_LDFLAGS"
  2288         ;;
  2289     *-*-cygwin* | *-*-mingw32*)
  2290         ARCH=win32
  2291         if test "$build" != "$host"; then # cross-compiling
  2292             # Default cross-compile location
  2293             ac_default_prefix=/usr/local/cross-tools/$host
  2294         else
  2295             # Look for the location of the tools and install there
  2296             if test "$BUILD_PREFIX" != ""; then
  2297                 ac_default_prefix=$BUILD_PREFIX
  2298             fi
  2299         fi
  2300         CheckDummyVideo
  2301         CheckDiskAudio
  2302         CheckDummyAudio
  2303         CheckWINDOWS
  2304         CheckWINDOWSGL
  2305         CheckDIRECTX
  2306 
  2307         # Set up the core platform files
  2308         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  2309 
  2310         # Set up files for the video library
  2311         if test x$enable_video = xyes; then
  2312             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  2313             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  2314             have_video=yes
  2315             AC_ARG_ENABLE(render-d3d,
  2316 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  2317                                 , enable_render_d3d=yes)
  2318             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  2319                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  2320             fi
  2321         fi
  2322         # Set up files for the audio library
  2323         if test x$enable_audio = xyes; then
  2324             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  2325             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  2326             if test x$have_dsound = xyes; then
  2327                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  2328                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  2329             fi
  2330             if test x$have_xaudio2 = xyes; then
  2331                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  2332                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  2333             fi
  2334             have_audio=yes
  2335         fi
  2336         # Set up files for the joystick library
  2337         if test x$enable_joystick = xyes; then
  2338             if test x$have_dinput = xyes; then
  2339                 AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  2340                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_dxjoystick.c"
  2341                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  2342             else
  2343                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  2344                 SOURCES="$SOURCES $srcdir/src/joystick/windows/SDL_mmjoystick.c"
  2345             fi
  2346             have_joystick=yes
  2347         fi
  2348         if test x$enable_haptic = xyes; then
  2349             if test x$have_dinput = xyes; then
  2350                 AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  2351                 SOURCES="$SOURCES $srcdir/src/haptic/windows/SDL_syshaptic.c"
  2352                 have_haptic=yes
  2353             fi
  2354         fi
  2355         if test x$enable_power = xyes; then
  2356             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  2357             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  2358             have_power=yes
  2359         fi
  2360         # Set up files for the thread library
  2361         if test x$enable_threads = xyes; then
  2362             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  2363             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_sysmutex.c"
  2364             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_syssem.c"
  2365             SOURCES="$SOURCES $srcdir/src/thread/windows/SDL_systhread.c"
  2366             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2367             have_threads=yes
  2368         fi
  2369         # Set up files for the timer library
  2370         if test x$enable_timers = xyes; then
  2371             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  2372             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  2373             have_timers=yes
  2374         fi
  2375         # Set up files for the shared object loading library
  2376         if test x$enable_loadso = xyes; then
  2377             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  2378             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  2379             have_loadso=yes
  2380         fi
  2381         # Set up the system libraries we need
  2382         # SDL is unicode, and unicows emulates this on Windows 98/ME
  2383         # You can get this here: http://libunicows.sourceforge.net/
  2384         #EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lunicows"
  2385         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lversion -luuid"
  2386         # The Windows platform requires special setup
  2387         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  2388         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  2389         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  2390         SDL_LIBS="-lmingw32 -lSDL2main $SDL_LIBS -mwindows"
  2391         ;;
  2392     *-*-beos* | *-*-haiku*)
  2393         ARCH=beos
  2394         ac_default_prefix=/boot/develop/tools/gnupro
  2395         CheckDummyVideo
  2396         CheckDiskAudio
  2397         CheckDummyAudio
  2398         CheckBWINDOW
  2399         CheckBeGL
  2400         # Set up files for the audio library
  2401         if test x$enable_audio = xyes; then
  2402             AC_DEFINE(SDL_AUDIO_DRIVER_BEOSAUDIO, 1, [ ])
  2403             SOURCES="$SOURCES $srcdir/src/audio/baudio/*.cc"
  2404             have_audio=yes
  2405         fi
  2406         # Set up files for the joystick library
  2407         if test x$enable_joystick = xyes; then
  2408             AC_DEFINE(SDL_JOYSTICK_BEOS, 1, [ ])
  2409             SOURCES="$SOURCES $srcdir/src/joystick/beos/*.cc"
  2410             have_joystick=yes
  2411         fi
  2412         # Set up files for the thread library
  2413         if test x$enable_threads = xyes; then
  2414             AC_DEFINE(SDL_THREAD_BEOS, 1, [ ])
  2415             SOURCES="$SOURCES $srcdir/src/thread/beos/*.c"
  2416             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_sysmutex.c"
  2417             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  2418             have_threads=yes
  2419         fi
  2420         # Set up files for the timer library
  2421         if test x$enable_timers = xyes; then
  2422             AC_DEFINE(SDL_TIMER_BEOS, 1, [ ])
  2423             SOURCES="$SOURCES $srcdir/src/timer/beos/*.c"
  2424             have_timers=yes
  2425         fi
  2426         # Set up files for the shared object loading library
  2427         if test x$enable_loadso = xyes; then
  2428             AC_DEFINE(SDL_LOADSO_BEOS, 1, [ ])
  2429             SOURCES="$SOURCES $srcdir/src/loadso/beos/*.c"
  2430             have_loadso=yes
  2431         fi
  2432         # Set up files for the system power library
  2433         if test x$enable_power = xyes; then
  2434             AC_DEFINE(SDL_POWER_BEOS, 1, [ ])
  2435             SOURCES="$SOURCES $srcdir/src/power/beos/*.c"
  2436             have_power=yes
  2437         fi
  2438         # The BeOS platform requires special setup.
  2439         SOURCES="$srcdir/src/main/beos/*.cc $SOURCES"
  2440         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  2441         ;;
  2442     arm*-apple-darwin*)
  2443         # iOS - We are not writing anything to confdefs.h because you have to replace
  2444         # SDL_config.h for SDL_config_iphoneos.h anyway
  2445         ARCH=ios
  2446 
  2447         CheckVisibilityHidden
  2448         CheckDummyVideo
  2449         CheckDiskAudio
  2450         CheckDummyAudio
  2451         CheckDLOPEN
  2452         CheckCOCOA
  2453         CheckPTHREAD
  2454 
  2455 
  2456         # Set up files for the audio library
  2457         if test x$enable_audio = xyes; then
  2458             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2459             have_audio=yes
  2460         fi
  2461         # Set up files for the joystick library
  2462         if test x$enable_joystick = xyes; then
  2463             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  2464             have_joystick=yes
  2465         fi
  2466         # Set up files for the haptic library
  2467         #if test x$enable_haptic = xyes; then
  2468         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2469         #    have_haptic=yes
  2470         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2471         #fi
  2472         # Set up files for the power library
  2473         if test x$enable_power = xyes; then
  2474             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  2475             have_power=yes
  2476         fi
  2477         # Set up files for the timer library
  2478         if test x$enable_timers = xyes; then
  2479             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2480             have_timers=yes
  2481         fi
  2482         # Set up additional files for the file library
  2483         if test x$enable_file = xyes; then
  2484             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2485         fi
  2486         # The iOS platform requires special setup.
  2487         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  2488         SOURCES="$SOURCES $srcdir/src/video/uikit/*.c"
  2489         ;;
  2490     *-*-darwin* )
  2491         # This could be either full "Mac OS X", or plain "Darwin" which is
  2492         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  2493         # Next line is broken, and a few files below require Mac OS X (full)
  2494         ARCH=macosx
  2495 
  2496         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  2497         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  2498         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  2499 
  2500         CheckVisibilityHidden
  2501         CheckDummyVideo
  2502         CheckDiskAudio
  2503         CheckDummyAudio
  2504         CheckDLOPEN
  2505         CheckCOCOA
  2506         CheckX11
  2507         CheckMacGL
  2508         CheckOpenGLX11
  2509         CheckPTHREAD
  2510 
  2511         # Good optimization on Mac OS X, yes...
  2512         EXTRA_CFLAGS="$EXTRA_CFLAGS -falign-loops=16"
  2513 
  2514         # Need this or things might misbuild on a G3.
  2515         EXTRA_CFLAGS="$EXTRA_CFLAGS -force_cpusubtype_ALL"
  2516 
  2517         # Set up files for the audio library
  2518         if test x$enable_audio = xyes; then
  2519             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  2520             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.c"
  2521             have_audio=yes
  2522         fi
  2523         # Set up files for the joystick library
  2524         if test x$enable_joystick = xyes; then
  2525             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  2526             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  2527             have_joystick=yes
  2528         fi
  2529         # Set up files for the haptic library
  2530         if test x$enable_haptic = xyes; then
  2531             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  2532             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  2533             have_haptic=yes
  2534             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  2535         fi
  2536         # Set up files for the power library
  2537         if test x$enable_power = xyes; then
  2538             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  2539             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  2540             have_power=yes
  2541         fi
  2542         # Set up files for the timer library
  2543         if test x$enable_timers = xyes; then
  2544             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  2545             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  2546             have_timers=yes
  2547         fi
  2548         # Set up additional files for the file library
  2549         if test x$enable_file = xyes; then
  2550             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  2551         fi
  2552         # The Mac OS X platform requires special setup.
  2553         EXTRA_CFLAGS="$EXTRA_CFLAGS -fpascal-strings"
  2554         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  2555         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  2556         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  2557         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  2558         # If audio is used, add the AudioUnit framework
  2559         if test x$enable_audio = xyes; then
  2560             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox -Wl,-framework,AudioUnit"
  2561         fi
  2562         ;;
  2563     *)
  2564         AC_MSG_ERROR([
  2565 *** Unsupported host:  Please add to configure.in
  2566         ])
  2567         ;;
  2568 esac
  2569 
  2570 dnl Do this on all platforms, after everything else.
  2571 CheckWarnAll
  2572 
  2573 # Verify that we have all the platform specific files we need
  2574 
  2575 if test x$have_joystick != xyes; then
  2576     if test x$enable_joystick = xyes; then
  2577         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  2578     fi
  2579     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  2580 fi
  2581 if test x$have_haptic != xyes; then
  2582     if test x$enable_haptic = xyes; then
  2583         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  2584     fi
  2585     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  2586 fi
  2587 if test x$have_threads != xyes; then
  2588     if test x$enable_threads = xyes; then
  2589         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  2590     fi
  2591     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  2592 fi
  2593 if test x$have_timers != xyes; then
  2594     if test x$enable_timers = xyes; then
  2595         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  2596     fi
  2597     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  2598 fi
  2599 if test x$have_loadso != xyes; then
  2600     if test x$enable_loadso = xyes; then
  2601         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  2602     fi
  2603     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  2604 fi
  2605 if test x$SDLMAIN_SOURCES = x; then
  2606     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  2607 fi
  2608 
  2609 OBJECTS=`echo $SOURCES`
  2610 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  2611 for EXT in asm cc m c S; do
  2612     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  2613     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  2614 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  2615 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  2616 done
  2617 
  2618 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  2619 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  2620 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  2621 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  2622 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  2623 	\\$(WINDRES) \\$< \\$@,g"`
  2624 
  2625 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  2626 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  2627 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
  2628 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  2629 \\$(objects)/\\2.o: \\1/\\2.c\\\\
  2630 	\\$(LIBTOOL) --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  2631 
  2632 # Set runtime shared library paths as needed
  2633 
  2634 if test "x$enable_rpath" = "xyes"; then
  2635   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  2636     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  2637   fi
  2638   if test $ARCH = solaris; then
  2639     SDL_RLD_FLAGS="-R\${libdir}"
  2640   fi
  2641 else
  2642   SDL_RLD_FLAGS=""
  2643 fi
  2644 
  2645 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  2646 
  2647 dnl Expand the cflags and libraries needed by apps using SDL
  2648 AC_SUBST(SDL_CFLAGS)
  2649 AC_SUBST(SDL_LIBS)
  2650 AC_SUBST(SDL_STATIC_LIBS)
  2651 AC_SUBST(SDL_RLD_FLAGS)
  2652 if test x$enable_shared = xyes; then
  2653     ENABLE_SHARED_TRUE=
  2654     ENABLE_SHARED_FALSE="#"
  2655 else
  2656     ENABLE_SHARED_TRUE="#"
  2657     ENABLE_SHARED_FALSE=
  2658 fi
  2659 if test x$enable_static = xyes; then
  2660     ENABLE_STATIC_TRUE=
  2661     ENABLE_STATIC_FALSE="#"
  2662 else
  2663     ENABLE_STATIC_TRUE="#"
  2664     ENABLE_STATIC_FALSE=
  2665 fi
  2666 AC_SUBST(ENABLE_SHARED_TRUE)
  2667 AC_SUBST(ENABLE_SHARED_FALSE)
  2668 AC_SUBST(ENABLE_STATIC_TRUE)
  2669 AC_SUBST(ENABLE_STATIC_FALSE)
  2670 
  2671 dnl Expand the sources and objects needed to build the library
  2672 AC_SUBST(ac_aux_dir)
  2673 AC_SUBST(INCLUDE)
  2674 AC_SUBST(OBJECTS)
  2675 AC_SUBST(VERSION_OBJECTS)
  2676 AC_SUBST(SDLMAIN_OBJECTS)
  2677 AC_SUBST(BUILD_CFLAGS)
  2678 AC_SUBST(EXTRA_CFLAGS)
  2679 AC_SUBST(BUILD_LDFLAGS)
  2680 AC_SUBST(EXTRA_LDFLAGS)
  2681 AC_SUBST(WINDRES)
  2682 
  2683 cat >Makefile.rules <<__EOF__
  2684 
  2685 # Build rules for objects
  2686 -include \$(OBJECTS:.lo=.d)
  2687 
  2688 # Special dependency for SDL.c, since it depends on SDL_revision.h
  2689 $srcdir/src/SDL.c: update-revision
  2690 $DEPENDS
  2691 $VERSION_DEPENDS
  2692 $SDLMAIN_DEPENDS
  2693 __EOF__
  2694 
  2695 AC_CONFIG_FILES([
  2696     Makefile:Makefile.in:Makefile.rules sdl2-config SDL2.spec sdl2.pc
  2697 ])
  2698 AC_OUTPUT