configure.in
author Sam Lantinga <slouken@libsdl.org>
Sat, 23 Sep 2017 12:38:47 -0700
changeset 11543 53b03749a7ff
parent 11537 ce94d20bd620
child 11552 2603f41d6a7e
permissions -rw-r--r--
Fixed bug 3842 - fix SDL_thread.h for emx

Ozkan Sezer

EMX declares _beginthread() / _endthread() in stdlib.h, not process.h.
The attached patch updates the OS/2 case of SDL_thread.h for it. (It
also tidies the unreadable whitespace in win32 case.)
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README.txt)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_CONFIG_AUX_DIR(build-scripts)
     5 AC_CONFIG_MACRO_DIR([acinclude])
     6 
     7 dnl Save the CFLAGS to see whether they were passed in or generated
     8 orig_CFLAGS="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=6
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=6
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include -idirafter $srcdir/src/video/khronos"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h wchar.h inttypes.h stdint.h limits.h ctype.h math.h float.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(atan atan2 acos asin ceil copysign cos cosf fabs floor log pow scalbn sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   280 fi
   281 
   282 dnl AC_CHECK_SIZEOF(void*)
   283 
   284 dnl See whether we can use gcc atomic operations on this architecture
   285 AC_ARG_ENABLE(gcc-atomics,
   286 AC_HELP_STRING([--enable-gcc-atomics],
   287                [Use gcc builtin atomics [[default=yes]]]),
   288               , enable_gcc_atomics=yes)
   289 if test x$enable_gcc_atomics = xyes; then
   290     have_gcc_atomics=no
   291     AC_MSG_CHECKING(for GCC builtin atomic operations)
   292     AC_TRY_LINK([
   293     ],[
   294     int a;
   295     void *x, *y, *z;
   296     __sync_lock_test_and_set(&a, 4);
   297     __sync_lock_test_and_set(&x, y);
   298     __sync_fetch_and_add(&a, 1);
   299     __sync_bool_compare_and_swap(&a, 5, 10);
   300     __sync_bool_compare_and_swap(&x, y, z);
   301     ],[
   302     have_gcc_atomics=yes
   303     ])
   304     AC_MSG_RESULT($have_gcc_atomics)
   305 
   306     if test x$have_gcc_atomics = xyes; then
   307         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   308     else
   309         # See if we have the minimum operation needed for GCC atomics
   310         AC_TRY_LINK([
   311         ],[
   312         int a;
   313         __sync_lock_test_and_set(&a, 1);
   314         __sync_lock_release(&a);
   315         ],[
   316         have_gcc_sync_lock_test_and_set=yes
   317         ])
   318         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   319             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   320         fi
   321     fi
   322 fi
   323 
   324 # Standard C sources
   325 SOURCES="$SOURCES $srcdir/src/*.c"
   326 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   327 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   328 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   329 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   330 SOURCES="$SOURCES $srcdir/src/events/*.c"
   331 SOURCES="$SOURCES $srcdir/src/file/*.c"
   332 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   333 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   334 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   335 SOURCES="$SOURCES $srcdir/src/power/*.c"
   336 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   337 SOURCES="$SOURCES $srcdir/src/render/*.c"
   338 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   339 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   340 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   341 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   342 SOURCES="$SOURCES $srcdir/src/video/*.c"
   343 
   344 dnl Enable/disable various subsystems of the SDL library
   345 
   346 AC_ARG_ENABLE(atomic,
   347 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   348               , enable_atomic=yes)
   349 if test x$enable_atomic != xyes; then
   350     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   351 else
   352     SUMMARY_modules="${SUMMARY_modules} atomic"
   353 fi
   354 AC_ARG_ENABLE(audio,
   355 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   356               , enable_audio=yes)
   357 if test x$enable_audio != xyes; then
   358     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   359 else
   360     SUMMARY_modules="${SUMMARY_modules} audio"
   361 fi
   362 AC_ARG_ENABLE(video,
   363 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   364               , enable_video=yes)
   365 if test x$enable_video != xyes; then
   366     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   367 else
   368     SUMMARY_modules="${SUMMARY_modules} video"
   369 fi
   370 AC_ARG_ENABLE(render,
   371 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   372               , enable_render=yes)
   373 if test x$enable_render != xyes; then
   374     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   375 else
   376     SUMMARY_modules="${SUMMARY_modules} render"
   377 fi
   378 AC_ARG_ENABLE(events,
   379 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   380               , enable_events=yes)
   381 if test x$enable_events != xyes; then
   382     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   383 else
   384     SUMMARY_modules="${SUMMARY_modules} events"
   385 fi
   386 AC_ARG_ENABLE(joystick,
   387 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   388               , enable_joystick=yes)
   389 if test x$enable_joystick != xyes; then
   390     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   391 else
   392     SUMMARY_modules="${SUMMARY_modules} joystick"
   393 fi
   394 AC_ARG_ENABLE(haptic,
   395 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   396               , enable_haptic=yes)
   397 if test x$enable_haptic != xyes; then
   398     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   399 else
   400     SUMMARY_modules="${SUMMARY_modules} haptic"
   401 fi
   402 AC_ARG_ENABLE(power,
   403 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   404               , enable_power=yes)
   405 if test x$enable_power != xyes; then
   406     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   407 else
   408     SUMMARY_modules="${SUMMARY_modules} power"
   409 fi
   410 AC_ARG_ENABLE(filesystem,
   411 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   412               , enable_filesystem=yes)
   413 if test x$enable_filesystem != xyes; then
   414     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   415 else
   416     SUMMARY_modules="${SUMMARY_modules} filesystem"
   417 fi
   418 AC_ARG_ENABLE(threads,
   419 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   420               , enable_threads=yes)
   421 if test x$enable_threads != xyes; then
   422     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   423 else
   424     SUMMARY_modules="${SUMMARY_modules} threads"
   425 fi
   426 AC_ARG_ENABLE(timers,
   427 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   428               , enable_timers=yes)
   429 if test x$enable_timers != xyes; then
   430     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   431 else
   432     SUMMARY_modules="${SUMMARY_modules} timers"
   433 fi
   434 AC_ARG_ENABLE(file,
   435 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   436               , enable_file=yes)
   437 if test x$enable_file != xyes; then
   438     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   439 else
   440     SUMMARY_modules="${SUMMARY_modules} file"
   441 fi
   442 AC_ARG_ENABLE(loadso,
   443 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   444               , enable_loadso=yes)
   445 if test x$enable_loadso != xyes; then
   446     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   447 else
   448     SUMMARY_modules="${SUMMARY_modules} loadso"
   449 fi
   450 AC_ARG_ENABLE(cpuinfo,
   451 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   452               , enable_cpuinfo=yes)
   453 if test x$enable_cpuinfo != xyes; then
   454     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   455 else
   456     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   457 fi
   458 AC_ARG_ENABLE(assembly,
   459 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   460               , enable_assembly=yes)
   461 if test x$enable_assembly = xyes; then
   462     SUMMARY_modules="${SUMMARY_modules} assembly"
   463 
   464     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   465 
   466     # Make sure that we don't generate floating point code that would
   467     # cause illegal instruction exceptions on older processors
   468     case "$host" in
   469         *-*-darwin*)
   470             # Don't need to worry about Apple hardware, it's all SSE capable
   471             default_ssemath=yes
   472             ;;
   473         *64-*-*)
   474             # x86 64-bit architectures all have SSE instructions
   475             default_ssemath=yes
   476             ;;
   477         *)
   478             default_ssemath=no
   479             ;;
   480     esac
   481     AC_ARG_ENABLE(ssemath,
   482 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=maybe]]]),
   483                   , enable_ssemath=$default_ssemath)
   484     if test x$enable_ssemath = xno; then
   485         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes -o x$have_gcc_sse3 = xyes; then
   486             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   487         fi
   488     fi
   489 
   490     dnl Check for various instruction support
   491     AC_ARG_ENABLE(mmx,
   492 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   493                   , enable_mmx=yes)
   494     if test x$enable_mmx = xyes; then
   495         save_CFLAGS="$CFLAGS"
   496         have_gcc_mmx=no
   497         AC_MSG_CHECKING(for GCC -mmmx option)
   498         mmx_CFLAGS="-mmmx"
   499         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   500 
   501         AC_TRY_COMPILE([
   502         #ifdef __MINGW32__
   503         #include <_mingw.h>
   504         #ifdef __MINGW64_VERSION_MAJOR
   505         #include <intrin.h>
   506         #else
   507         #include <mmintrin.h>
   508         #endif
   509         #else
   510         #include <mmintrin.h>
   511         #endif
   512         #ifndef __MMX__
   513         #error Assembler CPP flag not enabled
   514         #endif
   515         ],[
   516         ],[
   517         have_gcc_mmx=yes
   518         ])
   519         AC_MSG_RESULT($have_gcc_mmx)
   520         CFLAGS="$save_CFLAGS"
   521 
   522         if test x$have_gcc_mmx = xyes; then
   523             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   524             SUMMARY_math="${SUMMARY_math} mmx"
   525         fi
   526     fi
   527 
   528     AC_ARG_ENABLE(3dnow,
   529 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   530                   , enable_3dnow=yes)
   531     if test x$enable_3dnow = xyes; then
   532         save_CFLAGS="$CFLAGS"
   533         have_gcc_3dnow=no
   534         AC_MSG_CHECKING(for GCC -m3dnow option)
   535         amd3dnow_CFLAGS="-m3dnow"
   536         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   537 
   538         AC_TRY_LINK([
   539         #include <mm3dnow.h>
   540         #ifndef __3dNOW__
   541         #error Assembler CPP flag not enabled
   542         #endif
   543         ],[
   544         void *p = 0;
   545         _m_prefetch(p);
   546         ],[
   547         have_gcc_3dnow=yes
   548         ])
   549         AC_MSG_RESULT($have_gcc_3dnow)
   550         CFLAGS="$save_CFLAGS"
   551 
   552         if test x$have_gcc_3dnow = xyes; then
   553             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   554             SUMMARY_math="${SUMMARY_math} 3dnow"
   555         fi
   556     fi
   557 
   558     AC_ARG_ENABLE(sse,
   559 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   560                   , enable_sse=yes)
   561     if test x$enable_sse = xyes; then
   562         save_CFLAGS="$CFLAGS"
   563         have_gcc_sse=no
   564         AC_MSG_CHECKING(for GCC -msse option)
   565         sse_CFLAGS="-msse"
   566         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   567 
   568         AC_TRY_COMPILE([
   569         #ifdef __MINGW32__
   570         #include <_mingw.h>
   571         #ifdef __MINGW64_VERSION_MAJOR
   572         #include <intrin.h>
   573         #else
   574         #include <xmmintrin.h>
   575         #endif
   576         #else
   577         #include <xmmintrin.h>
   578         #endif
   579         #ifndef __SSE__
   580         #error Assembler CPP flag not enabled
   581         #endif
   582         ],[
   583         ],[
   584         have_gcc_sse=yes
   585         ])
   586         AC_MSG_RESULT($have_gcc_sse)
   587         CFLAGS="$save_CFLAGS"
   588 
   589         if test x$have_gcc_sse = xyes; then
   590             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   591             SUMMARY_math="${SUMMARY_math} sse"
   592         fi
   593     fi
   594 
   595     AC_ARG_ENABLE(sse2,
   596 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=maybe]]]),
   597                   , enable_sse2=$default_ssemath)
   598     if test x$enable_sse2 = xyes; then
   599         save_CFLAGS="$CFLAGS"
   600         have_gcc_sse2=no
   601         AC_MSG_CHECKING(for GCC -msse2 option)
   602         sse2_CFLAGS="-msse2"
   603         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   604 
   605         AC_TRY_COMPILE([
   606         #ifdef __MINGW32__
   607         #include <_mingw.h>
   608         #ifdef __MINGW64_VERSION_MAJOR
   609         #include <intrin.h>
   610         #else
   611         #include <emmintrin.h>
   612         #endif
   613         #else
   614         #include <emmintrin.h>
   615         #endif
   616         #ifndef __SSE2__
   617         #error Assembler CPP flag not enabled
   618         #endif
   619         ],[
   620         ],[
   621         have_gcc_sse2=yes
   622         ])
   623         AC_MSG_RESULT($have_gcc_sse2)
   624         CFLAGS="$save_CFLAGS"
   625 
   626         if test x$have_gcc_sse2 = xyes; then
   627             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   628             SUMMARY_math="${SUMMARY_math} sse2"
   629         fi
   630     fi
   631 
   632     AC_ARG_ENABLE(sse3,
   633 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   634                   , enable_sse3=$default_ssemath)
   635     if test x$enable_sse3 = xyes; then
   636         save_CFLAGS="$CFLAGS"
   637         have_gcc_sse3=no
   638         AC_MSG_CHECKING(for GCC -msse3 option)
   639         sse3_CFLAGS="-msse3"
   640         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   641 
   642         AC_TRY_COMPILE([
   643         #ifdef __MINGW32__
   644         #include <_mingw.h>
   645         #ifdef __MINGW64_VERSION_MAJOR
   646         #include <intrin.h>
   647         #else
   648         #include <pmmintrin.h>
   649         #endif
   650         #else
   651         #include <pmmintrin.h>
   652         #endif
   653         #ifndef __SSE2__
   654         #error Assembler CPP flag not enabled
   655         #endif
   656         ],[
   657         ],[
   658         have_gcc_sse3=yes
   659         ])
   660         AC_MSG_RESULT($have_gcc_sse3)
   661         CFLAGS="$save_CFLAGS"
   662 
   663         if test x$have_gcc_sse3 = xyes; then
   664             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   665             SUMMARY_math="${SUMMARY_math} sse3"
   666         fi
   667     fi
   668 
   669     AC_ARG_ENABLE(altivec,
   670 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   671                   , enable_altivec=yes)
   672     if test x$enable_altivec = xyes; then
   673         save_CFLAGS="$CFLAGS"
   674         have_gcc_altivec=no
   675         have_altivec_h_hdr=no
   676         altivec_CFLAGS="-maltivec"
   677         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   678 
   679         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   680         AC_TRY_COMPILE([
   681         #include <altivec.h>
   682         vector unsigned int vzero() {
   683             return vec_splat_u32(0);
   684         }
   685         ],[
   686         ],[
   687         have_gcc_altivec=yes
   688         have_altivec_h_hdr=yes
   689         ])
   690         AC_MSG_RESULT($have_gcc_altivec)
   691 
   692         if test x$have_gcc_altivec = xno; then
   693             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   694             AC_TRY_COMPILE([
   695             vector unsigned int vzero() {
   696                 return vec_splat_u32(0);
   697             }
   698             ],[
   699             ],[
   700             have_gcc_altivec=yes
   701             ])
   702             AC_MSG_RESULT($have_gcc_altivec)
   703         fi
   704 
   705         if test x$have_gcc_altivec = xno; then
   706             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   707             altivec_CFLAGS="-faltivec"
   708             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   709             AC_TRY_COMPILE([
   710             #include <altivec.h>
   711             vector unsigned int vzero() {
   712                 return vec_splat_u32(0);
   713             }
   714             ],[
   715             ],[
   716             have_gcc_altivec=yes
   717             have_altivec_h_hdr=yes
   718             ])
   719             AC_MSG_RESULT($have_gcc_altivec)
   720         fi
   721 
   722         if test x$have_gcc_altivec = xno; then
   723             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   724             AC_TRY_COMPILE([
   725             vector unsigned int vzero() {
   726                 return vec_splat_u32(0);
   727             }
   728             ],[
   729             ],[
   730             have_gcc_altivec=yes
   731             ])
   732             AC_MSG_RESULT($have_gcc_altivec)
   733         fi
   734         CFLAGS="$save_CFLAGS"
   735 
   736         if test x$have_gcc_altivec = xyes; then
   737             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   738             if test x$have_altivec_h_hdr = xyes; then
   739               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   740             fi
   741             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   742             SUMMARY_math="${SUMMARY_math} altivec"
   743         fi
   744     fi
   745 fi
   746 
   747 dnl See if the OSS audio interface is supported
   748 CheckOSS()
   749 {
   750     AC_ARG_ENABLE(oss,
   751 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   752                   , enable_oss=maybe)
   753 
   754     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   755     #  use sndio instead. So on there, we default to disabled. You can force
   756     #  it on if you really want, though.
   757     if test x$enable_oss = xmaybe; then
   758         enable_oss=yes
   759         case "$host" in
   760             *-*-openbsd*)
   761                 enable_oss=no;;
   762         esac
   763     fi
   764 
   765     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   766         AC_MSG_CHECKING(for OSS audio support)
   767         have_oss=no
   768         if test x$have_oss != xyes; then
   769             AC_TRY_COMPILE([
   770               #include <sys/soundcard.h>
   771             ],[
   772               int arg = SNDCTL_DSP_SETFRAGMENT;
   773             ],[
   774             have_oss=yes
   775             ])
   776         fi
   777         if test x$have_oss != xyes; then
   778             AC_TRY_COMPILE([
   779               #include <soundcard.h>
   780             ],[
   781               int arg = SNDCTL_DSP_SETFRAGMENT;
   782             ],[
   783             have_oss=yes
   784             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   785             ])
   786         fi
   787         AC_MSG_RESULT($have_oss)
   788         if test x$have_oss = xyes; then
   789             SUMMARY_audio="${SUMMARY_audio} oss"
   790             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   791             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   792             have_audio=yes
   793 
   794             # We may need to link with ossaudio emulation library
   795             case "$host" in
   796                 *-*-openbsd*|*-*-netbsd*)
   797                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   798             esac
   799         fi
   800     fi
   801 }
   802 
   803 dnl See if the ALSA audio interface is supported
   804 CheckALSA()
   805 {
   806     AC_ARG_ENABLE(alsa,
   807 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   808                   , enable_alsa=yes)
   809     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   810         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   811         # Restore all flags from before the ALSA detection runs
   812         CFLAGS="$alsa_save_CFLAGS"
   813         LDFLAGS="$alsa_save_LDFLAGS"
   814         LIBS="$alsa_save_LIBS"
   815         if test x$have_alsa = xyes; then
   816             AC_ARG_ENABLE(alsa-shared,
   817 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   818                           , enable_alsa_shared=yes)
   819             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   820 
   821             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   822             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   823             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   824             if test x$have_loadso != xyes && \
   825                test x$enable_alsa_shared = xyes; then
   826                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   827             fi
   828             if test x$have_loadso = xyes && \
   829                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   830                 echo "-- dynamic libasound -> $alsa_lib"
   831                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   832                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   833             else
   834                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   835                 SUMMARY_audio="${SUMMARY_audio} alsa"
   836             fi
   837             have_audio=yes
   838         fi
   839     fi
   840 }
   841 
   842 dnl Find JACK Audio
   843 CheckJACK()
   844 {
   845     AC_ARG_ENABLE(jack,
   846 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   847                   , enable_jack=yes)
   848     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   849         audio_jack=no
   850 
   851         JACK_REQUIRED_VERSION=0.125
   852 
   853         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   854         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   855         if test x$PKG_CONFIG != xno; then
   856         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   857                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   858                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   859                 audio_jack=yes
   860             fi
   861         fi
   862         AC_MSG_RESULT($audio_jack)
   863 
   864         if test x$audio_jack = xyes; then
   865             AC_ARG_ENABLE(jack-shared,
   866 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   867                           , enable_jack_shared=yes)
   868             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   869 
   870             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   871             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   872             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   873             if test x$have_loadso != xyes && \
   874                test x$enable_jack_shared = xyes; then
   875                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   876             fi
   877             if test x$have_loadso = xyes && \
   878                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   879                 echo "-- dynamic libjack -> $jack_lib"
   880                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   881                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   882 
   883                 case "$host" in
   884                     # On Solaris, jack must be linked deferred explicitly
   885                     # to prevent undefined symbol failures.
   886                     *-*-solaris*)
   887                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   888                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   889                 esac
   890             else
   891                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   892                 SUMMARY_audio="${SUMMARY_audio} jack"
   893             fi
   894             have_audio=yes
   895         fi
   896     fi
   897 }
   898 
   899 dnl Find the ESD includes and libraries
   900 CheckESD()
   901 {
   902     AC_ARG_ENABLE(esd,
   903 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   904                   , enable_esd=yes)
   905     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   906         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   907         if test x$have_esd = xyes; then
   908             AC_ARG_ENABLE(esd-shared,
   909 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   910                           , enable_esd_shared=yes)
   911             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   912 
   913             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   914             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   915             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   916             if test x$have_loadso != xyes && \
   917                test x$enable_esd_shared = xyes; then
   918                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   919             fi
   920             if test x$have_loadso = xyes && \
   921                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   922                 echo "-- dynamic libesd -> $esd_lib"
   923                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   924                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   925             else
   926                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   927                 SUMMARY_audio="${SUMMARY_audio} esd"
   928             fi
   929             have_audio=yes
   930         fi
   931     fi
   932 }
   933 
   934 dnl Find PulseAudio
   935 CheckPulseAudio()
   936 {
   937     AC_ARG_ENABLE(pulseaudio,
   938 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   939                   , enable_pulseaudio=yes)
   940     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   941         audio_pulseaudio=no
   942 
   943         PULSEAUDIO_REQUIRED_VERSION=0.9
   944 
   945         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   946         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   947         if test x$PKG_CONFIG != xno; then
   948         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   949                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   950                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   951                 audio_pulseaudio=yes
   952             fi
   953         fi
   954         AC_MSG_RESULT($audio_pulseaudio)
   955 
   956         if test x$audio_pulseaudio = xyes; then
   957             AC_ARG_ENABLE(pulseaudio-shared,
   958 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   959                           , enable_pulseaudio_shared=yes)
   960             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   961 
   962             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   963             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   964             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   965             if test x$have_loadso != xyes && \
   966                test x$enable_pulseaudio_shared = xyes; then
   967                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   968             fi
   969             if test x$have_loadso = xyes && \
   970                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   971                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   972                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   973                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   974 
   975                 case "$host" in
   976                     # On Solaris, pulseaudio must be linked deferred explicitly
   977                     # to prevent undefined symbol failures.
   978                     *-*-solaris*)
   979                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   980                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   981                 esac
   982             else
   983                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   984                 SUMMARY_audio="${SUMMARY_audio} pulse"
   985             fi
   986             have_audio=yes
   987         fi
   988     fi
   989 }
   990 
   991 CheckARTSC()
   992 {
   993     AC_ARG_ENABLE(arts,
   994 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
   995                   , enable_arts=yes)
   996     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
   997         AC_PATH_PROG(ARTSCONFIG, artsc-config)
   998         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
   999             : # arts isn't installed
  1000         else
  1001             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1002             ARTS_LIBS=`$ARTSCONFIG --libs`
  1003             AC_MSG_CHECKING(for aRts development environment)
  1004             audio_arts=no
  1005             save_CFLAGS="$CFLAGS"
  1006             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1007             AC_TRY_COMPILE([
  1008              #include <artsc.h>
  1009             ],[
  1010              arts_stream_t stream;
  1011             ],[
  1012             audio_arts=yes
  1013             ])
  1014             CFLAGS="$save_CFLAGS"
  1015             AC_MSG_RESULT($audio_arts)
  1016             if test x$audio_arts = xyes; then
  1017                 AC_ARG_ENABLE(arts-shared,
  1018 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1019                               , enable_arts_shared=yes)
  1020                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1021 
  1022                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1023                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1024                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1025                 if test x$have_loadso != xyes && \
  1026                    test x$enable_arts_shared = xyes; then
  1027                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1028                 fi
  1029                 if test x$have_loadso = xyes && \
  1030                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1031                     echo "-- dynamic libartsc -> $arts_lib"
  1032                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1033                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1034                 else
  1035                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1036                     SUMMARY_audio="${SUMMARY_audio} arts"
  1037                 fi
  1038                 have_audio=yes
  1039             fi
  1040         fi
  1041     fi
  1042 }
  1043 
  1044 dnl See if the NAS audio interface is supported
  1045 CheckNAS()
  1046 {
  1047     AC_ARG_ENABLE(nas,
  1048 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1049                   , enable_nas=yes)
  1050     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1051         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1052         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1053 
  1054         AC_MSG_CHECKING(for NAS audio support)
  1055         have_nas=no
  1056 
  1057         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1058             have_nas=yes
  1059             NAS_LIBS="-laudio"
  1060 
  1061         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1062             have_nas=yes
  1063             NAS_CFLAGS="-I/usr/X11R6/include/"
  1064             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1065 
  1066         fi
  1067 
  1068         AC_MSG_RESULT($have_nas)
  1069 
  1070         if test x$have_nas = xyes; then
  1071             AC_ARG_ENABLE(nas-shared,
  1072 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1073                           , enable_nas_shared=yes)
  1074             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1075 
  1076             if test x$have_loadso != xyes && \
  1077                test x$enable_nas_shared = xyes; then
  1078                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1079             fi
  1080             if test x$have_loadso = xyes && \
  1081                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1082                 echo "-- dynamic libaudio -> $nas_lib"
  1083                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1084                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1085             else
  1086                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1087                 SUMMARY_audio="${SUMMARY_audio} nas"
  1088             fi
  1089 
  1090             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1091             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1092             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1093             have_audio=yes
  1094         fi
  1095     fi
  1096 }
  1097 
  1098 dnl See if the sndio audio interface is supported
  1099 CheckSNDIO()
  1100 {
  1101     AC_ARG_ENABLE(sndio,
  1102 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1103                   , enable_sndio=yes)
  1104     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1105         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1106         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1107 
  1108         AC_MSG_CHECKING(for sndio audio support)
  1109         have_sndio=no
  1110 
  1111         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1112             have_sndio=yes
  1113             SNDIO_LIBS="-lsndio"
  1114         fi
  1115 
  1116         AC_MSG_RESULT($have_sndio)
  1117 
  1118         if test x$have_sndio = xyes; then
  1119             AC_ARG_ENABLE(sndio-shared,
  1120 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1121                           , enable_sndio_shared=yes)
  1122             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1123 
  1124             if test x$have_loadso != xyes && \
  1125                test x$enable_sndio_shared = xyes; then
  1126                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1127             fi
  1128             if test x$have_loadso = xyes && \
  1129                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1130                 echo "-- dynamic libsndio -> $sndio_lib"
  1131                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1132                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1133             else
  1134                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1135                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1136             fi
  1137 
  1138             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1139             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1140             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1141             have_audio=yes
  1142         fi
  1143     fi
  1144 }
  1145 
  1146 dnl Find FusionSound
  1147 CheckFusionSound()
  1148 {
  1149     AC_ARG_ENABLE(fusionsound,
  1150 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1151                   , enable_fusionsound=no)
  1152     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1153         fusionsound=no
  1154 
  1155         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1156 
  1157         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1158         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1159         if test x$PKG_CONFIG != xno; then
  1160             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1161                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1162                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1163                 fusionsound=yes
  1164             fi
  1165         fi
  1166         AC_MSG_RESULT($fusionsound)
  1167 
  1168         if test x$fusionsound = xyes; then
  1169             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1170             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1171             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1172             
  1173             AC_ARG_ENABLE(fusionsound-shared,
  1174 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1175                           , enable_fusionsound_shared=yes)
  1176             fusionsound_shared=no
  1177             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1178             if test x$have_loadso != xyes && \
  1179                test x$enable_fusionsound_shared = xyes; then
  1180                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1181             fi
  1182             if test x$have_loadso = xyes && \
  1183                test x$enable_fusionsound_shared = xyes; then
  1184                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1185                 fusionsound_shared=yes
  1186                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1187             else
  1188                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1189                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1190             fi
  1191             AC_MSG_RESULT($fusionsound_shared)
  1192             
  1193             have_audio=yes
  1194         fi
  1195     fi
  1196 }
  1197 
  1198 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1199 CheckDiskAudio()
  1200 {
  1201     AC_ARG_ENABLE(diskaudio,
  1202 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1203                   , enable_diskaudio=yes)
  1204     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1205         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1206         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1207         SUMMARY_audio="${SUMMARY_audio} disk"
  1208     fi
  1209 }
  1210 
  1211 dnl rcg03142006 See if the user wants the dummy audio driver...
  1212 CheckDummyAudio()
  1213 {
  1214     AC_ARG_ENABLE(dummyaudio,
  1215 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1216                   , enable_dummyaudio=yes)
  1217     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1218         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1219         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1220         SUMMARY_audio="${SUMMARY_audio} dummy"
  1221     fi
  1222 }
  1223 
  1224 dnl See if libsamplerate is available
  1225 CheckLibSampleRate()
  1226 {
  1227     AC_ARG_ENABLE(libsamplerate,
  1228 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1229                   , enable_libsamplerate=yes)
  1230     if test x$enable_libsamplerate = xyes; then
  1231         AC_CHECK_HEADER(samplerate.h,
  1232                         have_samplerate_h_hdr=yes,
  1233                         have_samplerate_h_hdr=no)
  1234         if test x$have_samplerate_h_hdr = xyes; then
  1235             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1236 
  1237             AC_ARG_ENABLE(libsamplerate-shared,
  1238 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1239                           , enable_libsamplerate_shared=yes)
  1240 
  1241             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1242 
  1243             if test x$have_loadso != xyes && \
  1244                test x$enable_libsamplerate_shared = xyes; then
  1245                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1246             fi
  1247             if test x$have_loadso = xyes && \
  1248                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1249                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1250                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1251             else
  1252                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1253             fi
  1254         fi
  1255     fi
  1256 }
  1257 
  1258 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1259 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1260 CheckVisibilityHidden()
  1261 {
  1262     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1263     have_gcc_fvisibility=no
  1264 
  1265     visibility_CFLAGS="-fvisibility=hidden"
  1266     save_CFLAGS="$CFLAGS"
  1267     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1268     AC_TRY_COMPILE([
  1269     #if !defined(__GNUC__) || __GNUC__ < 4
  1270     #error SDL only uses visibility attributes in GCC 4 or newer
  1271     #endif
  1272     ],[
  1273     ],[
  1274     have_gcc_fvisibility=yes
  1275     ])
  1276     AC_MSG_RESULT($have_gcc_fvisibility)
  1277     CFLAGS="$save_CFLAGS"
  1278 
  1279     if test x$have_gcc_fvisibility = xyes; then
  1280         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1281     fi
  1282 }
  1283 
  1284 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1285 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1286 CheckStackBoundary()
  1287 {
  1288     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1289     have_gcc_preferred_stack_boundary=no
  1290 
  1291     save_CFLAGS="$CFLAGS"
  1292     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1293     AC_TRY_COMPILE([
  1294     int x = 0;
  1295     ],[
  1296     ],[
  1297     have_gcc_preferred_stack_boundary=yes
  1298     ])
  1299     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1300     CFLAGS="$save_CFLAGS"
  1301 
  1302     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1303         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1304     fi
  1305 }
  1306 
  1307 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1308 dnl  This lets us catch things that would fail on a C89 compiler when using
  1309 dnl  a modern GCC.
  1310 CheckDeclarationAfterStatement()
  1311 {
  1312     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1313     have_gcc_declaration_after_statement=no
  1314 
  1315     save_CFLAGS="$CFLAGS"
  1316     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1317     AC_TRY_COMPILE([
  1318     int x = 0;
  1319     ],[
  1320     ],[
  1321     have_gcc_declaration_after_statement=yes
  1322     ])
  1323     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1324     CFLAGS="$save_CFLAGS"
  1325 
  1326     if test x$have_gcc_declaration_after_statement = xyes; then
  1327         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1328     fi
  1329 }
  1330 
  1331 dnl See if GCC's -Wall is supported.
  1332 CheckWarnAll()
  1333 {
  1334     AC_MSG_CHECKING(for GCC -Wall option)
  1335     have_gcc_Wall=no
  1336 
  1337     save_CFLAGS="$CFLAGS"
  1338     CFLAGS="$save_CFLAGS -Wall"
  1339     AC_TRY_COMPILE([
  1340     int x = 0;
  1341     ],[
  1342     ],[
  1343     have_gcc_Wall=yes
  1344     ])
  1345     AC_MSG_RESULT($have_gcc_Wall)
  1346     CFLAGS="$save_CFLAGS"
  1347 
  1348     if test x$have_gcc_Wall = xyes; then
  1349         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1350 
  1351         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1352         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1353         need_gcc_Wno_multichar=no
  1354         case "$host" in
  1355             *-*-haiku*)
  1356                 need_gcc_Wno_multichar=yes
  1357                 ;;
  1358         esac
  1359         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1360         if test x$need_gcc_Wno_multichar = xyes; then
  1361             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1362         fi
  1363     fi
  1364 }
  1365 
  1366 dnl Check for Wayland
  1367 CheckWayland()
  1368 {
  1369     AC_ARG_ENABLE(video-wayland,
  1370 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1371                   ,enable_video_wayland=yes)
  1372 
  1373     AC_ARG_ENABLE(video-wayland-qt-touch,
  1374 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1375                   ,enable_video_wayland_qt_touch=yes)
  1376 
  1377     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1378         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1379         AC_MSG_CHECKING(for Wayland support)
  1380         video_wayland=no
  1381         if  test x$PKG_CONFIG != xno && \
  1382             test x$video_opengl_egl = xyes && \
  1383             test x$video_opengles_v2 = xyes; then
  1384             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1385                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1386                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1387                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1388                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1389                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1390                 video_wayland=yes
  1391             fi
  1392         fi
  1393         AC_MSG_RESULT($video_wayland)
  1394 
  1395         if test x$video_wayland = xyes; then
  1396             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1397             if test x$enable_video_wayland_qt_touch = xyes; then
  1398                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1399             fi
  1400 
  1401             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1"
  1402 
  1403             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1404             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1405             AC_ARG_ENABLE(wayland-shared,
  1406 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1407                           , enable_wayland_shared=maybe)
  1408 
  1409             dnl FIXME: Do BSD and OS X need special cases?
  1410             case "$host" in
  1411                 *)
  1412                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1413                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1414                     if test x$wayland_egl_lib = x; then
  1415                         dnl This works in Ubuntu 13.10, maybe others
  1416                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1417                     fi
  1418                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1419                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1420                     ;;
  1421             esac
  1422 
  1423             if test x$enable_wayland_shared = xmaybe; then
  1424                 enable_wayland_shared=yes
  1425             fi
  1426             if test x$have_loadso != xyes && \
  1427                test x$enable_wayland_shared = xyes; then
  1428                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1429                 enable_wayland_shared=no
  1430             fi
  1431             if test x$have_loadso = xyes && \
  1432                test x$enable_wayland_shared = xyes && \
  1433                test x$wayland_client_lib != x && \
  1434                test x$wayland_egl_lib != x && \
  1435                test x$wayland_cursor_lib != x && \
  1436                test x$xkbcommon_lib != x; then
  1437                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1438                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1439                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1440                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1441                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1442                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1443                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1444                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1445                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1446             else
  1447                 enable_wayland_shared=no
  1448                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1449                 SUMMARY_video="${SUMMARY_video} wayland"
  1450             fi
  1451             have_video=yes
  1452         fi
  1453     fi
  1454 }
  1455 
  1456 dnl Check for Mir
  1457 CheckMir()
  1458 {
  1459     AC_ARG_ENABLE(video-mir,
  1460 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1461                   ,enable_video_mir=yes)
  1462 
  1463     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1464         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1465         AC_MSG_CHECKING(for Mir support)
  1466         video_mir=no
  1467         if test x$PKG_CONFIG != xno; then
  1468             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1469                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1470                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1471                 save_CFLAGS="$CFLAGS"
  1472                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1473 
  1474                 dnl This will disable Mir if >= v0.26 is not available
  1475                 AC_TRY_COMPILE([
  1476                 #include <mir_toolkit/mir_client_library.h>
  1477                 ],[
  1478                     MirWindowAttrib attrib = mir_window_attrib_state
  1479                 ],[
  1480                 video_mir=yes
  1481                 ])
  1482                 CFLAGS="$save_CFLAGS"
  1483             fi
  1484         fi
  1485         AC_MSG_RESULT($video_mir)
  1486 
  1487         if test x$video_mir = xyes; then
  1488             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1489             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1490             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1491             AC_ARG_ENABLE(mir-shared,
  1492 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1493                           , enable_mir_shared=maybe)
  1494 
  1495             dnl FIXME: Do BSD and OS X need special cases?
  1496             case "$host" in
  1497                 *)
  1498                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1499                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1500                     ;;
  1501             esac
  1502 
  1503             if test x$enable_mir_shared = xmaybe; then
  1504                 enable_mir_shared=yes
  1505             fi
  1506             if test x$have_loadso != xyes && \
  1507                test x$enable_mir_shared = xyes; then
  1508                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1509                 enable_mir_shared=no
  1510             fi
  1511             if test x$have_loadso = xyes && \
  1512                test x$enable_mir_shared = xyes && \
  1513                test x$mirclient_lib != x && \
  1514                test x$xkbcommon_lib != x; then
  1515                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1516                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1517                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1518                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1519                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1520             else
  1521                 enable_mir_shared=no
  1522                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1523                 SUMMARY_video="${SUMMARY_video} mir"
  1524             fi
  1525             have_video=yes
  1526         fi
  1527     fi
  1528 }
  1529 
  1530 dnl Check for Native Client stuff
  1531 CheckNativeClient()
  1532 {
  1533         AC_TRY_COMPILE([
  1534           #if !defined(__native_client__)
  1535           #error "NO NACL"
  1536           #endif
  1537         ],[
  1538         ],[
  1539         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1540         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1541         AC_DEFINE(HAVE_POW, 1, [ ])
  1542         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1543         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1544         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1545 
  1546         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1547 
  1548         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1549         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1550         SUMMARY_audio="${SUMMARY_audio} nacl"
  1551         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1552         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1553         ])
  1554 }
  1555 
  1556 
  1557 CheckRPI()
  1558 {
  1559     AC_ARG_ENABLE(video-rpi,
  1560 AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
  1561                   , enable_video_rpi=yes)
  1562     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
  1563         if test x$ARCH = xnetbsd; then
  1564             RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  1565             RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
  1566         else
  1567             RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  1568             RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
  1569         fi
  1570 
  1571         # Save the original compiler flags and libraries
  1572         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1573 
  1574         # Add the Raspberry Pi compiler flags and libraries
  1575         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_LDFLAGS"
  1576 
  1577         AC_MSG_CHECKING(for Raspberry Pi)
  1578         have_video_rpi=no
  1579         AC_TRY_LINK([
  1580           #include <bcm_host.h>
  1581         ],[
  1582           bcm_host_init();
  1583         ],[
  1584         have_video_rpi=yes
  1585         ],[
  1586         ])
  1587         AC_MSG_RESULT($have_video_rpi)
  1588 
  1589         # Restore the compiler flags and libraries
  1590         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1591         
  1592         if test x$have_video_rpi = xyes; then
  1593             CFLAGS="$CFLAGS $RPI_CFLAGS"
  1594             SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  1595             EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  1596             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_LDFLAGS"
  1597             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  1598             AC_DEFINE(SDL_VIDEO_DRIVER_RPI, 1, [ ])
  1599             SUMMARY_video="${SUMMARY_video} rpi"
  1600         fi
  1601     fi
  1602 }
  1603 
  1604 dnl Find the X11 include and library directories
  1605 CheckX11()
  1606 {
  1607     AC_ARG_ENABLE(video-x11,
  1608 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1609                   , enable_video_x11=yes)
  1610     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1611         case "$host" in
  1612             *-*-darwin*)
  1613                 # This isn't necessary for X11, but fixes GLX detection
  1614                 if test "x$x_includes" = xNONE && \
  1615                    test "x$x_libraries" = xNONE && \
  1616                    test -d /usr/X11R6/include && \
  1617                    test -d /usr/X11R6/lib; then
  1618                     x_includes="/usr/X11R6/include"
  1619                     x_libraries="/usr/X11R6/lib"
  1620                 fi
  1621                 ;;
  1622         esac
  1623         AC_PATH_X
  1624         AC_PATH_XTRA
  1625         if test x$have_x = xyes; then
  1626             AC_ARG_ENABLE(x11-shared,
  1627 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1628                           , enable_x11_shared=maybe)
  1629 
  1630             case "$host" in
  1631                 *-*-darwin*)
  1632                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1633                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1634                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1635                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1636                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1637                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1638                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1639                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1640                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1641                     ;;
  1642                 *-*-openbsd*)
  1643                     x11_lib='libX11.so'
  1644                     x11ext_lib='libXext.so'
  1645                     xcursor_lib='libXcursor.so'
  1646                     xinerama_lib='libXinerama.so'
  1647                     xinput_lib='libXi.so'
  1648                     xrandr_lib='libXrandr.so'
  1649                     xrender_lib='libXrender.so'
  1650                     xss_lib='libXss.so'
  1651                     xvidmode_lib='libXxf86vm.so'
  1652                     ;;
  1653                 *)
  1654                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1655                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1656                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1657                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1658                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1659                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1660                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1661                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1662                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1663                     ;;
  1664             esac
  1665 
  1666             if test x$ac_cv_func_shmat != xyes; then
  1667                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1668             fi
  1669             CFLAGS="$CFLAGS $X_CFLAGS"
  1670             LDFLAGS="$LDFLAGS $X_LIBS"
  1671 
  1672             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1673                             have_xext_h_hdr=yes,
  1674                             have_xext_h_hdr=no,
  1675                             [#include <X11/Xlib.h>
  1676                              #include <X11/Xproto.h>
  1677                             ])
  1678             if test x$have_xext_h_hdr != xyes; then
  1679                AC_MSG_ERROR([
  1680 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1681                ])
  1682             fi
  1683 
  1684             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1685             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1686             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1687 
  1688             # Needed so SDL applications can include SDL_syswm.h
  1689             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1690 
  1691             if test x$enable_x11_shared = xmaybe; then
  1692                 enable_x11_shared=yes
  1693             fi
  1694             if test x$have_loadso != xyes && \
  1695                test x$enable_x11_shared = xyes; then
  1696                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1697                 enable_x11_shared=no
  1698             fi
  1699             if test x$have_loadso = xyes && \
  1700                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1701                 echo "-- dynamic libX11 -> $x11_lib"
  1702                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1703                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1704                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1705                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1706             else
  1707                 enable_x11_shared=no
  1708                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1709                 SUMMARY_video="${SUMMARY_video} x11"
  1710             fi
  1711             have_video=yes
  1712 
  1713             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1714             have_const_param_XextAddDisplay=no
  1715             AC_TRY_COMPILE([
  1716               #include <X11/Xlib.h>
  1717               #include <X11/Xproto.h>
  1718               #include <X11/extensions/Xext.h>
  1719               #include <X11/extensions/extutil.h>
  1720               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1721             ],[
  1722             ],[
  1723             have_const_param_XextAddDisplay=yes
  1724             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1725             ])
  1726             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1727 
  1728             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1729             AC_MSG_CHECKING([for XGenericEvent])
  1730             have_XGenericEvent=no
  1731             AC_TRY_COMPILE([
  1732               	#include <X11/Xlib.h>
  1733             ],[
  1734 Display *display;
  1735 XEvent event;
  1736 XGenericEventCookie *cookie = &event.xcookie;
  1737 XNextEvent(display, &event);
  1738 XGetEventData(display, cookie);
  1739 XFreeEventData(display, cookie);
  1740             ],[
  1741                 have_XGenericEvent=yes
  1742                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1743             ])
  1744             AC_MSG_RESULT($have_XGenericEvent)
  1745 
  1746             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1747 
  1748             AC_ARG_ENABLE(video-x11-xcursor,
  1749 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1750                             , enable_video_x11_xcursor=yes)
  1751             if test x$enable_video_x11_xcursor = xyes; then
  1752                 definitely_enable_video_x11_xcursor=no
  1753                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1754                                 have_xcursor_h_hdr=yes,
  1755                                 have_xcursor_h_hdr=no,
  1756                                 [#include <X11/Xlib.h>
  1757                                 ])
  1758                 if test x$have_xcursor_h_hdr = xyes; then
  1759                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1760                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1761                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1762                         definitely_enable_video_x11_xcursor=yes
  1763                     else
  1764                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1765                         if test x$have_xcursor_lib = xyes ; then
  1766                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1767                             definitely_enable_video_x11_xcursor=yes
  1768                         fi
  1769                     fi
  1770                 fi
  1771             fi
  1772             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1773                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1774                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1775             fi
  1776             AC_ARG_ENABLE(video-x11-xdbe,
  1777 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1778                             , enable_video_x11_xdbe=yes)
  1779             if test x$enable_video_x11_xdbe = xyes; then
  1780                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1781                                 have_dbe_h_hdr=yes,
  1782                                 have_dbe_h_hdr=no,
  1783                                 [#include <X11/Xlib.h>
  1784                                 ])
  1785                 if test x$have_dbe_h_hdr = xyes; then
  1786                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1787                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1788                 fi
  1789             fi
  1790             AC_ARG_ENABLE(video-x11-xinerama,
  1791 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1792                             , enable_video_x11_xinerama=yes)
  1793             if test x$enable_video_x11_xinerama = xyes; then
  1794                 definitely_enable_video_x11_xinerama=no
  1795                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1796                                 have_xinerama_h_hdr=yes,
  1797                                 have_xinerama_h_hdr=no,
  1798                                 [#include <X11/Xlib.h>
  1799                                 ])
  1800                 if test x$have_xinerama_h_hdr = xyes; then
  1801                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1802                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1803                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1804                         definitely_enable_video_x11_xinerama=yes
  1805                     else
  1806                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1807                         if test x$have_xinerama_lib = xyes ; then
  1808                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1809                             definitely_enable_video_x11_xinerama=yes
  1810                         fi
  1811                     fi
  1812                 fi
  1813             fi
  1814             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1815                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1816                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1817             fi
  1818             AC_ARG_ENABLE(video-x11-xinput,
  1819 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1820                             , enable_video_x11_xinput=yes)
  1821             if test x$enable_video_x11_xinput = xyes; then
  1822                 definitely_enable_video_x11_xinput=no
  1823                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1824                                 have_xinput_h_hdr=yes,
  1825                                 have_xinput_h_hdr=no,
  1826                                 [#include <X11/Xlib.h>
  1827                                 ])
  1828                 if test x$have_xinput_h_hdr = xyes; then
  1829                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1830                         echo "-- dynamic libXi -> $xinput_lib"
  1831                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1832                         definitely_enable_video_x11_xinput=yes
  1833                     else
  1834                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1835                         if test x$have_xinput_lib = xyes ; then
  1836                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1837                             definitely_enable_video_x11_xinput=yes
  1838                         fi
  1839                     fi
  1840                 fi
  1841             fi
  1842             if test x$definitely_enable_video_x11_xinput = xyes; then
  1843                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1844                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1845                 AC_MSG_CHECKING(for xinput2 multitouch)
  1846             	have_xinput2_multitouch=no
  1847             	AC_TRY_COMPILE([
  1848               		#include <X11/Xlib.h>
  1849              		#include <X11/Xproto.h>
  1850 			#include <X11/extensions/XInput2.h>
  1851             	],[
  1852 int event_type = XI_TouchBegin;
  1853 XITouchClassInfo *t;
  1854             	],[
  1855             	have_xinput2_multitouch=yes
  1856             	AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1857                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1858             	])
  1859             	AC_MSG_RESULT($have_xinput2_multitouch)
  1860             fi
  1861             AC_ARG_ENABLE(video-x11-xrandr,
  1862 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1863                             , enable_video_x11_xrandr=yes)
  1864             if test x$enable_video_x11_xrandr = xyes; then
  1865                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1866                 definitely_enable_video_x11_xrandr=no
  1867                 have_xrandr_h_hdr=no
  1868                 AC_TRY_COMPILE([
  1869                 #include <X11/Xlib.h>
  1870                 #include <X11/extensions/Xrandr.h>
  1871                 ],[
  1872                 XRRScreenResources *res = NULL;
  1873                 ],[
  1874                 have_xrandr_h_hdr=yes
  1875                 ])
  1876                 if test x$have_xrandr_h_hdr = xyes; then
  1877                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1878                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1879                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1880                         definitely_enable_video_x11_xrandr=yes
  1881                     else
  1882                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1883                         if test x$have_xrandr_lib = xyes ; then
  1884                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1885                             definitely_enable_video_x11_xrandr=yes
  1886                         fi
  1887                     fi
  1888                 fi
  1889             fi
  1890             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1891                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1892                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1893             fi
  1894             AC_ARG_ENABLE(video-x11-scrnsaver,
  1895 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1896                             , enable_video_x11_scrnsaver=yes)
  1897             if test x$enable_video_x11_scrnsaver = xyes; then
  1898                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1899                                 have_scrnsaver_h_hdr=yes,
  1900                                 have_scrnsaver_h_hdr=no,
  1901                                 [#include <X11/Xlib.h>
  1902                                 ])
  1903                 if test x$have_scrnsaver_h_hdr = xyes; then
  1904                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1905                         echo "-- dynamic libXss -> $xss_lib"
  1906                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1907                         definitely_enable_video_x11_scrnsaver=yes
  1908                     else
  1909                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1910                         if test x$have_xss_lib = xyes ; then
  1911                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1912                             definitely_enable_video_x11_scrnsaver=yes
  1913                         fi
  1914                     fi
  1915                 fi
  1916             fi
  1917             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1918                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1919                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1920             fi
  1921             AC_ARG_ENABLE(video-x11-xshape,
  1922 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1923                             , enable_video_x11_xshape=yes)
  1924             if test x$enable_video_x11_xshape = xyes; then
  1925                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1926                                 have_shape_h_hdr=yes,
  1927                                 have_shape_h_hdr=no,
  1928                                 [#include <X11/Xlib.h>
  1929                                 ])
  1930                 if test x$have_shape_h_hdr = xyes; then
  1931                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1932                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1933                 fi
  1934             fi
  1935             AC_ARG_ENABLE(video-x11-vm,
  1936 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1937                             , enable_video_x11_vm=yes)
  1938             if test x$enable_video_x11_vm = xyes; then
  1939                 definitely_enable_video_x11_vm=no
  1940                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1941                                 have_vm_h_hdr=yes,
  1942                                 have_vm_h_hdr=no,
  1943                                 [#include <X11/Xlib.h>
  1944                                 ])
  1945                 if test x$have_vm_h_hdr = xyes; then
  1946                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1947                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1948                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1949                         definitely_enable_video_x11_vm=yes
  1950                     else
  1951                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1952                         if test x$have_vm_lib = xyes ; then
  1953                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1954                             definitely_enable_video_x11_vm=yes
  1955                         fi
  1956                     fi
  1957                 fi
  1958             fi
  1959             if test x$definitely_enable_video_x11_vm = xyes; then
  1960                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1961                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1962             fi
  1963         fi
  1964     fi
  1965 }
  1966 
  1967 dnl Set up the Vivante video driver if enabled
  1968 CheckVivanteVideo()
  1969 {
  1970     AC_ARG_ENABLE(video-vivante,
  1971 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1972                   , enable_video_vivante=yes)
  1973     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1974         AC_MSG_CHECKING(for Vivante VDK API)
  1975         have_vivante_vdk=no
  1976         AC_TRY_COMPILE([
  1977           #define LINUX
  1978           #define EGL_API_FB
  1979           #include <gc_vdk.h>
  1980         ],[
  1981         ],[
  1982         have_vivante_vdk=yes
  1983         ])
  1984         AC_MSG_RESULT($have_vivante_vdk)
  1985 
  1986         AC_MSG_CHECKING(for Vivante FB API)
  1987         have_vivante_egl=no
  1988         AC_TRY_COMPILE([
  1989           #define LINUX
  1990           #define EGL_API_FB
  1991           #include <EGL/eglvivante.h>
  1992         ],[
  1993         ],[
  1994         have_vivante_egl=yes
  1995         ])
  1996         AC_MSG_RESULT($have_vivante_egl)
  1997 
  1998         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  1999             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  2000             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  2001             if test x$have_vivante_vdk = xyes; then
  2002                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  2003                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  2004             fi
  2005             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  2006             SUMMARY_video="${SUMMARY_video} vivante"
  2007             have_video=yes
  2008         fi
  2009     fi
  2010 }
  2011 
  2012 dnl Set up the Haiku video driver if enabled
  2013 CheckHaikuVideo()
  2014 {
  2015     if test x$enable_video = xyes; then
  2016         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  2017         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  2018         have_video=yes
  2019         SUMMARY_video="${SUMMARY_video} haiku"
  2020     fi
  2021 }
  2022 
  2023 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  2024 CheckCOCOA()
  2025 {
  2026     AC_ARG_ENABLE(video-cocoa,
  2027 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  2028                   , enable_video_cocoa=yes)
  2029     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  2030         save_CFLAGS="$CFLAGS"
  2031         dnl Work around that we don't have Objective-C support in autoconf
  2032         CFLAGS="$CFLAGS -x objective-c"
  2033         AC_MSG_CHECKING(for Cocoa framework)
  2034         have_cocoa=no
  2035         AC_TRY_COMPILE([
  2036           #import <Cocoa/Cocoa.h>
  2037         ],[
  2038         ],[
  2039         have_cocoa=yes
  2040         ])
  2041         AC_MSG_RESULT($have_cocoa)
  2042         CFLAGS="$save_CFLAGS"
  2043         if test x$have_cocoa = xyes; then
  2044             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2045             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2046             SUMMARY_video="${SUMMARY_video} cocoa"
  2047             have_video=yes
  2048         fi
  2049     fi
  2050 }
  2051 
  2052 dnl Find DirectFB
  2053 CheckDirectFB()
  2054 {
  2055     AC_ARG_ENABLE(video-directfb,
  2056 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2057                   , enable_video_directfb=no)
  2058     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2059         video_directfb=no
  2060 
  2061         DIRECTFB_REQUIRED_VERSION=1.0.0
  2062         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2063         if test x$DIRECTFBCONFIG = xno; then
  2064             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2065             if test x$PKG_CONFIG != xno; then
  2066                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2067                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2068                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2069                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2070                     video_directfb=yes
  2071                 fi
  2072             fi
  2073         else
  2074             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2075             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2076             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2077             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2078             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2079                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2080                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2081                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2082                 video_directfb=yes
  2083             fi
  2084         fi
  2085         if test x$video_directfb = xyes; then
  2086             # SuSE 11.1 installs directfb-config without directfb-devel
  2087             save_CPPFLAGS="$CPPFLAGS"
  2088             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2089             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2090             CPPFLAGS="$save_CPPFLAGS"
  2091             video_directfb=$have_directfb_hdr
  2092         fi
  2093         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2094         AC_MSG_RESULT($video_directfb)
  2095 
  2096         if test x$video_directfb = xyes; then
  2097             AC_ARG_ENABLE(directfb-shared,
  2098 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2099                               , enable_directfb_shared=yes)
  2100 
  2101             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2102             AC_DEFINE(SDL_VIDEO_RENDER_DIRECTFB, 1, [ ])
  2103             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2104             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2105 
  2106             AC_MSG_CHECKING(for directfb dynamic loading support)
  2107             directfb_shared=no
  2108             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2109             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2110 AC_MSG_WARN("directfb $directfb_lib")
  2111             if test x$have_loadso != xyes && \
  2112                test x$enable_directfb_shared = xyes; then
  2113                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2114             fi
  2115             if test x$have_loadso = xyes && \
  2116                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2117                 directfb_shared=yes
  2118                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2119                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2120                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2121             else
  2122                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2123                 SUMMARY_video="${SUMMARY_video} directfb"
  2124             fi
  2125             AC_MSG_RESULT($directfb_shared)
  2126             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2127             have_video=yes
  2128         fi
  2129     fi
  2130 }
  2131 
  2132 dnl Find KMSDRM
  2133 CheckKMSDRM()
  2134 {
  2135     AC_ARG_ENABLE(video-kmsdrm,
  2136 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2137                   , enable_video_kmsdrm=no)
  2138 
  2139     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2140         video_kmsdrm=no
  2141         libdrm_avail=no
  2142         libgbm_avail=no
  2143 
  2144         LIBDRM_REQUIRED_VERSION=2.4.46
  2145         LIBGBM_REQUIRED_VERSION=9.0.0
  2146 
  2147         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2148         if test x$PKG_CONFIG != xno; then
  2149             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2150                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2151                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2152                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2153                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2154                     libdrm_avail=yes
  2155                 fi
  2156                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2157                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2158                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2159                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2160                     libgbm_avail=yes
  2161                 fi
  2162                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2163                     video_kmsdrm=yes
  2164                 fi
  2165  
  2166                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2167                 AC_MSG_RESULT($libdrm_avail)
  2168                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2169                 AC_MSG_RESULT($libgbm_avail)
  2170 
  2171                 if test x$video_kmsdrm = xyes; then
  2172                     AC_ARG_ENABLE(kmsdrm-shared,
  2173 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2174                               , enable_kmsdrm_shared=yes)
  2175 
  2176                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2177                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2178                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2179 
  2180                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2181                     kmsdrm_shared=no
  2182                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2183                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2184                     if test x$have_loadso != xyes && \
  2185                        test x$enable_kmsdrm_shared = xyes; then
  2186                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2187                     fi
  2188                     if test x$have_loadso = xyes && \
  2189                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2190                         kmsdrm_shared=yes
  2191                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2192                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2193                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2194                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2195                     else
  2196                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2197                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2198                     fi
  2199                     AC_MSG_RESULT($kmsdrm_shared)
  2200                     have_video=yes
  2201                 fi
  2202             fi
  2203         fi
  2204     fi
  2205 }
  2206 
  2207 dnl rcg04172001 Set up the Null video driver.
  2208 CheckDummyVideo()
  2209 {
  2210     AC_ARG_ENABLE(video-dummy,
  2211 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2212                   , enable_video_dummy=yes)
  2213     if test x$enable_video_dummy = xyes; then
  2214         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2215         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2216         have_video=yes
  2217         SUMMARY_video="${SUMMARY_video} dummy"
  2218     fi
  2219 }
  2220 
  2221 dnl Set up the QNX video driver if enabled
  2222 CheckQNXVideo()
  2223 {
  2224     if test x$enable_video = xyes; then
  2225         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2226         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2227         have_video=yes
  2228         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2229         SUMMARY_video="${SUMMARY_video} qnx"
  2230     fi
  2231 }
  2232 
  2233 dnl Set up the QNX audio driver if enabled
  2234 CheckQNXAudio()
  2235 {
  2236     if test x$enable_audio = xyes; then
  2237         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2238         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2239         have_audio=yes
  2240         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2241         SUMMARY_audio="${SUMMARY_audio} qsa"
  2242     fi
  2243 }
  2244 
  2245 dnl Check to see if OpenGL support is desired
  2246 AC_ARG_ENABLE(video-opengl,
  2247 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2248               , enable_video_opengl=yes)
  2249 
  2250 dnl Find OpenGL
  2251 CheckOpenGLX11()
  2252 {
  2253     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2254         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2255         video_opengl=no
  2256         AC_TRY_COMPILE([
  2257          #include <GL/gl.h>
  2258          #include <GL/glx.h>
  2259         ],[
  2260         ],[
  2261         video_opengl=yes
  2262         ])
  2263         AC_MSG_RESULT($video_opengl)
  2264         if test x$video_opengl = xyes; then
  2265             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2266             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2267             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2268             SUMMARY_video="${SUMMARY_video} opengl"
  2269         fi
  2270     fi
  2271 }
  2272 
  2273 dnl Check to see if OpenGL ES support is desired
  2274 AC_ARG_ENABLE(video-opengles,
  2275 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2276               , enable_video_opengles=yes)
  2277 AC_ARG_ENABLE(video-opengles1,
  2278 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2279               , enable_video_opengles1=yes)
  2280 AC_ARG_ENABLE(video-opengles2,
  2281 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2282               , enable_video_opengles2=yes)
  2283 
  2284 dnl Find OpenGL ES
  2285 CheckOpenGLESX11()
  2286 {
  2287     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2288         AC_MSG_CHECKING(for EGL support)
  2289         video_opengl_egl=no
  2290         AC_TRY_COMPILE([
  2291           #define LINUX
  2292           #define EGL_API_FB
  2293           #include <EGL/egl.h>
  2294           #include <EGL/eglext.h>
  2295         ],[
  2296         ],[
  2297         video_opengl_egl=yes
  2298         ])
  2299         AC_MSG_RESULT($video_opengl_egl)
  2300         if test x$video_opengl_egl = xyes; then
  2301             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2302         fi
  2303             
  2304         if test x$enable_video_opengles1 = xyes; then
  2305             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2306             video_opengles_v1=no
  2307             AC_TRY_COMPILE([
  2308              #include <GLES/gl.h>
  2309              #include <GLES/glext.h>
  2310             ],[
  2311             ],[
  2312             video_opengles_v1=yes
  2313             ])
  2314             AC_MSG_RESULT($video_opengles_v1)
  2315             if test x$video_opengles_v1 = xyes; then
  2316                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2317                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2318                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2319             fi
  2320         fi
  2321         
  2322         if test x$enable_video_opengles2 = xyes; then
  2323             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2324             video_opengles_v2=no
  2325             AC_TRY_COMPILE([
  2326              #include <GLES2/gl2.h>
  2327              #include <GLES2/gl2ext.h>
  2328             ],[
  2329             ],[
  2330             video_opengles_v2=yes
  2331             ])
  2332             AC_MSG_RESULT($video_opengles_v2)
  2333             if test x$video_opengles_v2 = xyes; then
  2334                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2335                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2336                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2337             fi
  2338         fi
  2339     fi
  2340 }
  2341 
  2342 dnl Check for Windows OpenGL
  2343 CheckWINDOWSGL()
  2344 {
  2345     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2346         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2347         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2348         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2349         SUMMARY_video="${SUMMARY_video} opengl"
  2350     fi
  2351 }
  2352 
  2353 dnl Check for Windows OpenGL
  2354 CheckWINDOWSGLES()
  2355 {
  2356     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2357 
  2358         AC_MSG_CHECKING(for EGL support)
  2359         video_opengl_egl=no
  2360         AC_TRY_COMPILE([
  2361          #include <EGL/egl.h>
  2362         ],[
  2363         ],[
  2364         video_opengl_egl=yes
  2365         ])
  2366         AC_MSG_RESULT($video_opengl_egl)
  2367         if test x$video_opengl_egl = xyes; then
  2368             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2369             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2370             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2371         fi
  2372        
  2373         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2374         video_opengles_v2=no
  2375         AC_TRY_COMPILE([
  2376          #include <GLES2/gl2.h>
  2377          #include <GLES2/gl2ext.h>
  2378         ],[
  2379         ],[
  2380         video_opengles_v2=yes
  2381         ])
  2382         AC_MSG_RESULT($video_opengles_v2)
  2383         if test x$video_opengles_v2 = xyes; then
  2384             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2385             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2386             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2387             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2388         fi
  2389     fi
  2390 }
  2391 
  2392 dnl Check for Haiku OpenGL
  2393 CheckHaikuGL()
  2394 {
  2395     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2396         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2397         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2398         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2399         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2400         SUMMARY_video="${SUMMARY_video} opengl"
  2401     fi
  2402 }
  2403 
  2404 dnl Check for MacOS OpenGL
  2405 CheckMacGL()
  2406 {
  2407     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2408         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2409         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2410         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2411         SUMMARY_video="${SUMMARY_video} opengl"
  2412     fi
  2413 }
  2414 
  2415 CheckEmscriptenGLES()
  2416 {
  2417     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2418         AC_MSG_CHECKING(for EGL support)
  2419         video_opengl_egl=no
  2420         AC_TRY_COMPILE([
  2421          #include <EGL/egl.h>
  2422         ],[
  2423         ],[
  2424         video_opengl_egl=yes
  2425         ])
  2426         AC_MSG_RESULT($video_opengl_egl)
  2427         if test x$video_opengl_egl = xyes; then
  2428             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2429         fi
  2430 
  2431         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2432         video_opengles_v2=no
  2433         AC_TRY_COMPILE([
  2434          #include <GLES2/gl2.h>
  2435          #include <GLES2/gl2ext.h>
  2436         ],[
  2437         ],[
  2438         video_opengles_v2=yes
  2439         ])
  2440         AC_MSG_RESULT($video_opengles_v2)
  2441         if test x$video_opengles_v2 = xyes; then
  2442             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2443             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2444             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2445         fi
  2446     fi
  2447 }
  2448 
  2449 dnl Check to see if Vulkan support is desired
  2450 AC_ARG_ENABLE(video-vulkan,
  2451 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2452               , enable_video_vulkan=yes)
  2453 
  2454 dnl Find Vulkan Header
  2455 CheckVulkan()
  2456 {
  2457     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2458         case "$host" in
  2459             *-*-androideabi*)
  2460                 AC_TRY_COMPILE([
  2461                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2462                   #error Vulkan doesn't work on this configuration
  2463                   #endif
  2464                 ],[
  2465                 ],[
  2466                 ],[
  2467                     enable_video_vulkan=no
  2468                 ])
  2469                 ;;
  2470             *-*-darwin*)
  2471                 save_CFLAGS="$CFLAGS"
  2472                 dnl Work around that we don't have Objective-C support in autoconf
  2473                 CFLAGS="$CFLAGS -x objective-c"
  2474                 AC_TRY_COMPILE([
  2475                   #include <Cocoa/Cocoa.h>
  2476                   #include <Metal/Metal.h>
  2477                   #include <QuartzCore/CAMetalLayer.h>
  2478 
  2479                   #if !TARGET_CPU_X86_64
  2480                   #error Vulkan doesn't work on this configuration
  2481                   #endif
  2482                 ],[
  2483                 ],[
  2484                 ],[
  2485                     enable_video_vulkan=no
  2486                 ])
  2487                 CFLAGS="$save_CFLAGS"
  2488                 ;;
  2489             *)
  2490                 ;;
  2491         esac
  2492         if test x$enable_video_vulkan = xno; then
  2493             # For reasons I am totally unable to see, I get an undefined macro error if
  2494             # I put this in the AC_TRY_COMPILE.
  2495             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2496         fi
  2497     fi
  2498     if test x$enable_video_vulkan = xyes; then
  2499         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2500         SUMMARY_video="${SUMMARY_video} vulkan"
  2501     fi
  2502 }
  2503 
  2504 dnl See if we can use the new unified event interface in Linux 2.4
  2505 CheckInputEvents()
  2506 {
  2507     dnl Check for Linux 2.4 unified input event interface support
  2508         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2509         use_input_events=no
  2510         AC_TRY_COMPILE([
  2511           #include <linux/input.h>
  2512         ],[
  2513           #ifndef EVIOCGNAME
  2514           #error EVIOCGNAME() ioctl not available
  2515           #endif
  2516         ],[
  2517         use_input_events=yes
  2518         ])
  2519         AC_MSG_RESULT($use_input_events)
  2520         if test x$use_input_events = xyes; then
  2521             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2522             SUMMARY_input="${SUMMARY_input} linuxev"
  2523         fi
  2524 }
  2525 
  2526 dnl See if we can use the kernel kd.h header
  2527 CheckInputKD()
  2528 {
  2529 
  2530     AC_MSG_CHECKING(for Linux kd.h)
  2531     use_input_kd=no
  2532     AC_TRY_COMPILE([
  2533       #include <linux/kd.h>
  2534       #include <linux/keyboard.h>
  2535     ],[
  2536         struct kbentry kbe;
  2537         kbe.kb_table = KG_CTRL;
  2538         ioctl(0, KDGKBENT, &kbe);
  2539     ],[
  2540     use_input_kd=yes
  2541     ])
  2542     AC_MSG_RESULT($use_input_kd)
  2543     if test x$use_input_kd = xyes; then
  2544         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2545         SUMMARY_input="${SUMMARY_input} linuxkd"
  2546     fi
  2547 }
  2548 
  2549 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2550 CheckLibUDev()
  2551 {
  2552     AC_ARG_ENABLE(libudev,
  2553 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2554                         , enable_libudev=yes)
  2555     if test x$enable_libudev = xyes; then
  2556         AC_CHECK_HEADER(libudev.h,
  2557                         have_libudev_h_hdr=yes,
  2558                         have_libudev_h_hdr=no)
  2559         if test x$have_libudev_h_hdr = xyes; then
  2560             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2561 
  2562             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2563             if test x$udev_lib != x; then
  2564                 echo "-- dynamic udev -> $udev_lib"
  2565                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2566             fi
  2567         fi
  2568     fi
  2569 }
  2570 
  2571 dnl See if the platform offers libdbus for various IPC techniques.
  2572 CheckDBus()
  2573 {
  2574     AC_ARG_ENABLE(dbus,
  2575 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2576                         , enable_dbus=yes)
  2577     if test x$enable_dbus = xyes; then
  2578         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2579         if test x$PKG_CONFIG != xno; then
  2580             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2581             save_CFLAGS="$CFLAGS"
  2582             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2583             AC_CHECK_HEADER(dbus/dbus.h,
  2584                             have_dbus_dbus_h_hdr=yes,
  2585                             have_dbus_dbus_h_hdr=no)
  2586             CFLAGS="$save_CFLAGS"
  2587             if test x$have_dbus_dbus_h_hdr = xyes; then
  2588                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2589                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2590                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2591             fi
  2592         fi
  2593     fi
  2594 }
  2595 
  2596 dnl See if the platform wanna IME support.
  2597 CheckIME()
  2598 {
  2599     AC_ARG_ENABLE(ime,
  2600 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2601                   , enable_ime=yes)
  2602     if test x$enable_ime = xyes; then
  2603         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2604             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2605     fi
  2606 }
  2607 
  2608 dnl See if the platform has libibus IME support.
  2609 CheckIBus()
  2610 {
  2611     AC_ARG_ENABLE(ibus,
  2612 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2613                   , enable_ibus=yes)
  2614     if test x$enable_ibus = xyes; then
  2615         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2616         if test x$PKG_CONFIG != xno; then
  2617             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2618             save_CFLAGS="$CFLAGS"
  2619             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2620             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2621                             have_ibus_ibus_h_hdr=yes,
  2622                             have_ibus_ibus_h_hdr=no)
  2623             AC_CHECK_HEADER(sys/inotify.h,
  2624                             have_inotify_inotify_h_hdr=yes,
  2625                             have_inotify_inotify_h_hdr=no)
  2626             CFLAGS="$save_CFLAGS"
  2627             if test x$have_ibus_ibus_h_hdr = xyes; then
  2628                 if test x$enable_ime != xyes; then
  2629                     AC_MSG_WARN([IME support is required for IBus.])
  2630                     have_ibus_ibus_h_hdr=no
  2631                 elif test x$enable_dbus != xyes; then
  2632                     AC_MSG_WARN([DBus support is required for IBus.])
  2633                     have_ibus_ibus_h_hdr=no
  2634                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2635                     AC_MSG_WARN([INotify support is required for IBus.])
  2636                     have_ibus_ibus_h_hdr=no
  2637                 else
  2638                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2639                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2640                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2641                fi
  2642             fi
  2643         fi
  2644     fi
  2645 }
  2646 
  2647 dnl See if the platform has fcitx IME support.
  2648 CheckFcitx()
  2649 {
  2650     AC_ARG_ENABLE(fcitx,
  2651 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2652                   , enable_fcitx=yes)
  2653     if test x$enable_fcitx = xyes; then
  2654         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2655         if test x$PKG_CONFIG != xno; then
  2656             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2657             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2658             AC_CHECK_HEADER(fcitx/frontend.h,
  2659                             have_fcitx_frontend_h_hdr=yes,
  2660                             have_fcitx_frontend_h_hdr=no)
  2661             CFLAGS="$save_CFLAGS"
  2662             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2663                 if test x$enable_ime != xyes; then
  2664                     AC_MSG_WARN([IME support is required for fcitx.])
  2665                     have_fcitx_frontend_h_hdr=no
  2666                 elif test x$enable_dbus != xyes; then
  2667                     AC_MSG_WARN([DBus support is required for fcitx.])
  2668                     have_fcitx_frontend_h_hdr=no
  2669                 else
  2670                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2671                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2672                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2673                fi
  2674             fi
  2675         fi
  2676     fi
  2677 }
  2678 
  2679 dnl See if we can use the Touchscreen input library
  2680 CheckTslib()
  2681 {
  2682     AC_ARG_ENABLE(input-tslib,
  2683 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2684                   , enable_input_tslib=yes)
  2685     if test x$enable_input_tslib = xyes; then
  2686         AC_MSG_CHECKING(for Touchscreen library support)
  2687         enable_input_tslib=no
  2688         AC_TRY_COMPILE([
  2689           #include "tslib.h"
  2690         ],[
  2691         ],[
  2692         enable_input_tslib=yes
  2693         ])
  2694         AC_MSG_RESULT($enable_input_tslib)
  2695         if test x$enable_input_tslib = xyes; then
  2696             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2697             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2698             SUMMARY_input="${SUMMARY_input} ts"
  2699         fi
  2700     fi
  2701 }
  2702 
  2703 dnl See what type of thread model to use on Linux and Solaris
  2704 CheckPTHREAD()
  2705 {
  2706     dnl Check for pthread support
  2707     AC_ARG_ENABLE(pthreads,
  2708 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2709                   , enable_pthreads=yes)
  2710     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2711     AC_ARG_ENABLE(pthread-sem,
  2712 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2713                   , enable_pthread_sem=yes)
  2714     case "$host" in
  2715          *-*-androideabi*)
  2716             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2717             pthread_lib=""
  2718             ;;
  2719         *-*-linux*|*-*-uclinux*)
  2720             pthread_cflags="-D_REENTRANT"
  2721             pthread_lib="-lpthread"
  2722             ;;
  2723         *-*-bsdi*)
  2724             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2725             pthread_lib=""
  2726             ;;
  2727         *-*-darwin*)
  2728             pthread_cflags="-D_THREAD_SAFE"
  2729 # causes Carbon.p complaints?
  2730 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2731             ;;
  2732         *-*-freebsd*|*-*-dragonfly*)
  2733             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2734             pthread_lib="-pthread"
  2735             ;;
  2736         *-*-netbsd*)
  2737             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2738             pthread_lib="-lpthread"
  2739             ;;
  2740         *-*-openbsd*)
  2741             pthread_cflags="-D_REENTRANT"
  2742             pthread_lib="-pthread"
  2743             ;;
  2744         *-*-solaris2.9)
  2745             # From Solaris 9+, posix4's preferred name is rt.
  2746             pthread_cflags="-D_REENTRANT"
  2747             pthread_lib="-lpthread -lrt"
  2748             ;;
  2749         *-*-solaris2.10)
  2750             # Solaris 10+ merged pthread into libc.
  2751             pthread_cflags="-D_REENTRANT"
  2752             pthread_lib="-lrt"
  2753             ;;
  2754         *-*-solaris*)
  2755             # Solaris 11+ merged rt into libc.
  2756             pthread_cflags="-D_REENTRANT"
  2757             pthread_lib=""
  2758             ;;
  2759         *-*-sysv5*)
  2760             pthread_cflags="-D_REENTRANT -Kthread"
  2761             pthread_lib=""
  2762             ;;
  2763         *-*-aix*)
  2764             pthread_cflags="-D_REENTRANT -mthreads"
  2765             pthread_lib="-lpthread"
  2766             ;;
  2767         *-*-hpux11*)
  2768             pthread_cflags="-D_REENTRANT"
  2769             pthread_lib="-L/usr/lib -lpthread"
  2770             ;;
  2771         *-*-haiku*)
  2772             pthread_cflags="-D_REENTRANT"
  2773             pthread_lib=""
  2774             ;;
  2775         *-*-nto*)
  2776             pthread_cflags="-D_REENTRANT"
  2777             pthread_lib=""
  2778             ;;
  2779         *)
  2780             pthread_cflags="-D_REENTRANT"
  2781             pthread_lib="-lpthread"
  2782             ;;
  2783     esac
  2784     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2785         # Save the original compiler flags and libraries
  2786         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2787         # Add the pthread compiler flags and libraries
  2788         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2789         # Check to see if we have pthread support on this system
  2790         AC_MSG_CHECKING(for pthreads)
  2791         use_pthreads=no
  2792         AC_TRY_LINK([
  2793          #include <pthread.h>
  2794         ],[
  2795          pthread_attr_t type;
  2796          pthread_attr_init(&type);
  2797         ],[
  2798         use_pthreads=yes
  2799         ])
  2800         AC_MSG_RESULT($use_pthreads)
  2801         # Restore the compiler flags and libraries
  2802         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2803 
  2804         # Do futher testing if we have pthread support...
  2805         if test x$use_pthreads = xyes; then
  2806             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2807             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2808             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2809             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2810 
  2811             # Save the original compiler flags and libraries
  2812             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2813             # Add the pthread compiler flags and libraries
  2814             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2815 
  2816             # Check to see if recursive mutexes are available
  2817             AC_MSG_CHECKING(for recursive mutexes)
  2818             has_recursive_mutexes=no
  2819             if test x$has_recursive_mutexes = xno; then
  2820                 AC_TRY_LINK([
  2821                   #define _GNU_SOURCE 1
  2822                   #include <pthread.h>
  2823                 ],[
  2824                   pthread_mutexattr_t attr;
  2825                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2826                 ],[
  2827                 has_recursive_mutexes=yes
  2828                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2829                 ])
  2830             fi
  2831             if test x$has_recursive_mutexes = xno; then
  2832                 AC_TRY_LINK([
  2833                   #define _GNU_SOURCE 1
  2834                   #include <pthread.h>
  2835                 ],[
  2836                   pthread_mutexattr_t attr;
  2837                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2838                 ],[
  2839                 has_recursive_mutexes=yes
  2840                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2841                 ])
  2842             fi
  2843             AC_MSG_RESULT($has_recursive_mutexes)
  2844 
  2845             # Check to see if pthread semaphore support is missing
  2846             if test x$enable_pthread_sem = xyes; then
  2847                 AC_MSG_CHECKING(for pthread semaphores)
  2848                 have_pthread_sem=no
  2849                 AC_TRY_COMPILE([
  2850                   #include <pthread.h>
  2851                   #include <semaphore.h>
  2852                 ],[
  2853                 ],[
  2854                 have_pthread_sem=yes
  2855                 ])
  2856                 AC_MSG_RESULT($have_pthread_sem)
  2857             fi
  2858             if test x$have_pthread_sem = xyes; then
  2859                 AC_MSG_CHECKING(for sem_timedwait)
  2860                 have_sem_timedwait=no
  2861                 AC_TRY_LINK([
  2862                   #include <pthread.h>
  2863                   #include <semaphore.h>
  2864                 ],[
  2865                   sem_timedwait(NULL, NULL);
  2866                 ],[
  2867                 have_sem_timedwait=yes
  2868                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2869                 ])
  2870                 AC_MSG_RESULT($have_sem_timedwait)
  2871             fi
  2872 
  2873             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2874             if test x$have_pthread_np_h = xyes; then
  2875                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2876             fi
  2877 
  2878             # Check to see if pthread naming is available
  2879             AC_MSG_CHECKING(for pthread_setname_np)
  2880             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2881               has_pthread_setname_np=yes
  2882               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2883             ],[
  2884               has_pthread_setname_np=no
  2885             ])
  2886             AC_MSG_RESULT($has_pthread_setname_np)
  2887 
  2888             AC_MSG_CHECKING(for pthread_set_name_np)
  2889             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2890               has_pthread_set_name_np=yes
  2891               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2892             ],[
  2893               has_pthread_set_name_np=no
  2894             ])
  2895             AC_MSG_RESULT($has_pthread_set_name_np)
  2896 
  2897             # Restore the compiler flags and libraries
  2898             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2899 
  2900             # Basic thread creation functions
  2901             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2902 
  2903             # Semaphores
  2904             # We can fake these with mutexes and condition variables if necessary
  2905             if test x$have_pthread_sem = xyes; then
  2906                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2907             else
  2908                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2909             fi
  2910 
  2911             # Mutexes
  2912             # We can fake these with semaphores if necessary
  2913             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2914 
  2915             # Condition variables
  2916             # We can fake these with semaphores and mutexes if necessary
  2917             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2918 
  2919             # Thread local storage
  2920             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2921 
  2922             have_threads=yes
  2923         fi
  2924     fi
  2925 }
  2926 
  2927 dnl Determine whether the compiler can produce Windows executables
  2928 CheckWINDOWS()
  2929 {
  2930     AC_MSG_CHECKING(Windows compiler)
  2931     have_win32_gcc=no
  2932     AC_TRY_COMPILE([
  2933      #include <windows.h>
  2934     ],[
  2935     ],[
  2936     have_win32_gcc=yes
  2937     ])
  2938     AC_MSG_RESULT($have_win32_gcc)
  2939     if test x$have_win32_gcc != xyes; then
  2940        AC_MSG_ERROR([
  2941 *** Your compiler ($CC) does not produce Windows executables!
  2942        ])
  2943     fi
  2944 
  2945     AC_MSG_CHECKING(Windows CE)
  2946     have_wince=no
  2947     AC_TRY_COMPILE([
  2948 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2949 #error This is not Windows CE
  2950 #endif
  2951     ],[
  2952     ],[
  2953     have_wince=yes
  2954        AC_MSG_ERROR([
  2955 *** Sorry, Windows CE is no longer supported.
  2956        ])
  2957     ])
  2958     AC_MSG_RESULT($have_wince)
  2959 
  2960     # This fixes Windows stack alignment with newer GCC
  2961     CheckStackBoundary
  2962 }
  2963 
  2964 dnl Find the DirectX includes and libraries
  2965 CheckDIRECTX()
  2966 {
  2967     AC_ARG_ENABLE(directx,
  2968 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2969                   , enable_directx=yes)
  2970     if test x$enable_directx = xyes; then
  2971         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2972         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2973         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2974         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2975         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  2976         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  2977         AC_CHECK_HEADER(xaudio2.h, have_xaudio2=yes)
  2978         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  2979         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  2980         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  2981         AC_TRY_COMPILE([
  2982 #include <windows.h>
  2983 #include <xinput.h>
  2984 XINPUT_GAMEPAD_EX x1;
  2985         ],[],[have_xinput_gamepadex=yes])
  2986         AC_TRY_COMPILE([
  2987 #include <windows.h>
  2988 #include <xinput.h>
  2989 XINPUT_STATE_EX s1;
  2990         ],[],[have_xinput_stateex=yes])
  2991 
  2992         if test x$have_ddraw = xyes; then
  2993             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  2994         fi
  2995         if test x$have_dinput = xyes; then
  2996             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  2997         fi
  2998         if test x$have_dsound = xyes; then
  2999             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3000         fi
  3001         if test x$have_dxgi = xyes; then
  3002             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3003         fi
  3004         if test x$have_xinput = xyes; then
  3005             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3006         fi
  3007         if test x$have_xinput_gamepadex = xyes; then
  3008             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3009         fi
  3010         if test x$have_xinput_stateex = xyes; then
  3011             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3012         fi
  3013 
  3014         SUMMARY_video="${SUMMARY_video} directx"
  3015         SUMMARY_audio="${SUMMARY_audio} directx"
  3016 
  3017         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3018         # FIXME:  ...so force it off for now.
  3019         case "$host" in
  3020             *-*-cygwin*)
  3021             have_dinput=false
  3022             ;;
  3023         esac
  3024     fi
  3025 }
  3026 
  3027 dnl Check for the dlfcn.h interface for dynamically loading objects
  3028 CheckDLOPEN()
  3029 {
  3030     AC_ARG_ENABLE(sdl-dlopen,
  3031 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3032                   , enable_sdl_dlopen=yes)
  3033     if test x$enable_sdl_dlopen = xyes; then
  3034         AC_MSG_CHECKING(for dlopen)
  3035         have_dlopen=no
  3036         AC_TRY_COMPILE([
  3037          #include <dlfcn.h>
  3038         ],[
  3039          void *handle = dlopen("", RTLD_NOW);
  3040          const char *loaderror = (char *) dlerror();
  3041         ],[
  3042         have_dlopen=yes
  3043         ])
  3044         AC_MSG_RESULT($have_dlopen)
  3045 
  3046         if test x$have_dlopen = xyes; then
  3047             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3048                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3049                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3050             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3051             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3052             have_loadso=yes
  3053         fi
  3054     fi
  3055 }
  3056 
  3057 dnl Check for the usbhid(3) library on *BSD
  3058 CheckUSBHID()
  3059 {
  3060     case "$host" in
  3061         *-*-*bsd*)
  3062             if test x$enable_joystick = xyes; then
  3063                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3064                 if test x$have_libusbhid = xyes; then
  3065                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3066                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3067                     USB_LIBS="$USB_LIBS -lusbhid"
  3068                 else
  3069                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3070                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3071                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3072                 fi
  3073                     
  3074                 save_CFLAGS="$CFLAGS"
  3075                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3076 
  3077                 AC_MSG_CHECKING(for usbhid)
  3078                 have_usbhid=no
  3079                 AC_TRY_COMPILE([
  3080                   #include <sys/types.h>
  3081                   #if defined(HAVE_USB_H)
  3082                   #include <usb.h>
  3083                   #endif
  3084                   #ifdef __DragonFly__
  3085                   # include <bus/usb/usb.h>
  3086                   # include <bus/usb/usbhid.h>
  3087                   #else
  3088                   # include <dev/usb/usb.h>
  3089                   # include <dev/usb/usbhid.h>
  3090                   #endif
  3091                   #if defined(HAVE_USBHID_H)
  3092                   #include <usbhid.h>
  3093                   #elif defined(HAVE_LIBUSB_H)
  3094                   #include <libusb.h>
  3095                   #elif defined(HAVE_LIBUSBHID_H)
  3096                   #include <libusbhid.h>
  3097                   #endif
  3098                 ],[
  3099                   struct report_desc *repdesc;
  3100                   struct usb_ctl_report *repbuf;
  3101                   hid_kind_t hidkind;
  3102                 ],[
  3103                 have_usbhid=yes
  3104                 ])
  3105                 AC_MSG_RESULT($have_usbhid)
  3106 
  3107                 if test x$have_usbhid = xyes; then
  3108                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3109                     have_usbhid_ucr_data=no
  3110                     AC_TRY_COMPILE([
  3111                       #include <sys/types.h>
  3112                       #if defined(HAVE_USB_H)
  3113                       #include <usb.h>
  3114                       #endif
  3115                       #ifdef __DragonFly__
  3116                       # include <bus/usb/usb.h>
  3117                       # include <bus/usb/usbhid.h>
  3118                       #else
  3119                       # include <dev/usb/usb.h>
  3120                       # include <dev/usb/usbhid.h>
  3121                       #endif
  3122                       #if defined(HAVE_USBHID_H)
  3123                       #include <usbhid.h>
  3124                       #elif defined(HAVE_LIBUSB_H)
  3125                       #include <libusb.h>
  3126                       #elif defined(HAVE_LIBUSBHID_H)
  3127                       #include <libusbhid.h>
  3128                       #endif
  3129                     ],[
  3130                       struct usb_ctl_report buf;
  3131                       if (buf.ucr_data) { }
  3132                     ],[
  3133                     have_usbhid_ucr_data=yes
  3134                     ])
  3135                     if test x$have_usbhid_ucr_data = xyes; then
  3136                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3137                     fi
  3138                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3139                     
  3140                     AC_MSG_CHECKING(for new usbhid API)
  3141                     have_usbhid_new=no
  3142                     AC_TRY_COMPILE([
  3143                       #include <sys/types.h>
  3144                       #if defined(HAVE_USB_H)
  3145                       #include <usb.h>
  3146                       #endif
  3147                       #ifdef __DragonFly__
  3148                       #include <bus/usb/usb.h>
  3149                       #include <bus/usb/usbhid.h>
  3150                       #else
  3151                       #include <dev/usb/usb.h>
  3152                       #include <dev/usb/usbhid.h>
  3153                       #endif
  3154                       #if defined(HAVE_USBHID_H)
  3155                       #include <usbhid.h>
  3156                       #elif defined(HAVE_LIBUSB_H)
  3157                       #include <libusb.h>
  3158                       #elif defined(HAVE_LIBUSBHID_H)
  3159                       #include <libusbhid.h>
  3160                       #endif
  3161                     ],[
  3162                       report_desc_t d;
  3163                       hid_start_parse(d, 1, 1);
  3164                     ],[
  3165                     have_usbhid_new=yes
  3166                     ])
  3167                     if test x$have_usbhid_new = xyes; then
  3168                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3169                     fi
  3170                     AC_MSG_RESULT($have_usbhid_new)
  3171 
  3172                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3173                     have_machine_joystick=no
  3174                     AC_TRY_COMPILE([
  3175                       #include <machine/joystick.h>
  3176                     ],[
  3177                       struct joystick t;
  3178                     ],[
  3179                     have_machine_joystick=yes
  3180                     ])
  3181                     if test x$have_machine_joystick = xyes; then
  3182                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3183                     fi
  3184                     AC_MSG_RESULT($have_machine_joystick)
  3185 
  3186                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3187                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3188                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3189                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3190                     have_joystick=yes
  3191                 fi
  3192                 CFLAGS="$save_CFLAGS"
  3193             fi
  3194         ;;
  3195     esac
  3196 }
  3197 
  3198 dnl Check for clock_gettime()
  3199 CheckClockGettime()
  3200 {
  3201     AC_ARG_ENABLE(clock_gettime,
  3202 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3203                   , enable_clock_gettime=yes)
  3204     if test x$enable_clock_gettime = xyes; then
  3205         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3206         if test x$have_clock_gettime = xyes; then
  3207             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3208             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3209         else
  3210             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3211             if test x$have_clock_gettime = xyes; then
  3212                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3213                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3214             fi
  3215         fi
  3216     fi
  3217 }
  3218 
  3219 dnl Check for a valid linux/version.h
  3220 CheckLinuxVersion()
  3221 {
  3222     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3223     if test x$have_linux_version_h = xyes; then
  3224         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3225     fi
  3226 }
  3227 
  3228 dnl Check if we want to use RPATH
  3229 CheckRPATH()
  3230 {
  3231     AC_ARG_ENABLE(rpath,
  3232 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3233                   , enable_rpath=yes)
  3234 }
  3235 
  3236 dnl Do this on all platforms, before everything else (other things might want to override it).
  3237 CheckWarnAll
  3238 
  3239 dnl Set up the configuration based on the host platform!
  3240 case "$host" in
  3241     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3242         case "$host" in
  3243             *-*-androideabi*)
  3244                 # Android
  3245                 ARCH=android
  3246                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3247                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3248                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3249                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3250                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3251                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3252 
  3253                 if test x$enable_video = xyes; then
  3254                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3255                     # FIXME: confdefs? Not AC_DEFINE?
  3256                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3257                     SUMMARY_video="${SUMMARY_video} android"
  3258                 fi
  3259                 ;;
  3260             *-*-linux*)         ARCH=linux ;;
  3261             *-*-uclinux*)       ARCH=linux ;;
  3262             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3263             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3264             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3265             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3266             *-*-bsdi*)          ARCH=bsdi ;;
  3267             *-*-freebsd*)       ARCH=freebsd ;;
  3268             *-*-dragonfly*)     ARCH=freebsd ;;
  3269             *-*-netbsd*)        ARCH=netbsd ;;
  3270             *-*-openbsd*)       ARCH=openbsd ;;
  3271             *-*-sysv5*)         ARCH=sysv5 ;;
  3272             *-*-solaris*)       ARCH=solaris ;;
  3273             *-*-hpux*)          ARCH=hpux ;;
  3274             *-*-aix*)           ARCH=aix ;;
  3275             *-*-minix*)         ARCH=minix ;;
  3276             *-*-nto*)           ARCH=nto
  3277                 CheckQNXVideo
  3278                 ;;
  3279         esac
  3280         CheckVisibilityHidden
  3281         CheckDeclarationAfterStatement
  3282         CheckDummyVideo
  3283         CheckDiskAudio
  3284         CheckDummyAudio
  3285         CheckDLOPEN
  3286         CheckOSS
  3287         CheckALSA
  3288         CheckPulseAudio
  3289         CheckJACK
  3290         CheckARTSC
  3291         CheckESD
  3292         CheckNAS
  3293         CheckSNDIO
  3294         CheckFusionSound
  3295         CheckLibSampleRate
  3296         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3297         CheckRPI
  3298         CheckX11
  3299         CheckDirectFB
  3300         CheckKMSDRM
  3301         CheckOpenGLX11
  3302         CheckOpenGLESX11
  3303         CheckVulkan
  3304         CheckMir
  3305         CheckWayland
  3306         CheckLibUDev
  3307         CheckDBus
  3308         CheckIME
  3309         CheckIBus
  3310         CheckFcitx
  3311         case $ARCH in
  3312           linux)
  3313               CheckInputEvents
  3314               CheckInputKD
  3315           ;;
  3316         esac
  3317         CheckTslib
  3318         CheckUSBHID
  3319         CheckPTHREAD
  3320         CheckClockGettime
  3321         CheckLinuxVersion
  3322         CheckRPATH
  3323         CheckVivanteVideo
  3324 
  3325         # Set up files for the audio library
  3326         if test x$enable_audio = xyes; then
  3327           case $ARCH in
  3328             sysv5|solaris|hpux)
  3329                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3330                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3331                 SUMMARY_audio="${SUMMARY_audio} sun"
  3332                 have_audio=yes
  3333             ;;
  3334             netbsd)  # Don't use this on OpenBSD, it's busted.
  3335                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3336                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3337                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3338                 have_audio=yes
  3339             ;;
  3340             aix)
  3341                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3342                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3343                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3344                 have_audio=yes
  3345             ;;
  3346             android)
  3347                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3348                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3349                 SUMMARY_audio="${SUMMARY_audio} android"
  3350                 have_audio=yes
  3351             ;;
  3352             nto)
  3353                 CheckQNXAudio
  3354             ;;
  3355           esac
  3356         fi
  3357         # Set up files for the joystick library
  3358         if test x$enable_joystick = xyes; then
  3359           case $ARCH in
  3360             linux)
  3361                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3362                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3363                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3364                 have_joystick=yes
  3365             ;;
  3366             android)
  3367                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3368                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3369                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3370                 have_joystick=yes
  3371             ;;
  3372           esac
  3373         fi
  3374         # Set up files for the haptic library
  3375         if test x$enable_haptic = xyes; then
  3376            if test x$use_input_events = xyes; then
  3377              case $ARCH in
  3378                linux)
  3379                    AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3380                    SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3381                    have_haptic=yes
  3382                ;;
  3383              esac
  3384            fi
  3385         fi
  3386         # Set up files for the power library
  3387         if test x$enable_power = xyes; then
  3388              case $ARCH in
  3389                linux)
  3390                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3391                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3392                    have_power=yes
  3393                ;;
  3394                android)
  3395                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3396                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3397                    have_power=yes
  3398                ;;
  3399              esac
  3400         fi
  3401         # Set up files for the filesystem library
  3402         if test x$enable_filesystem = xyes; then
  3403              case $ARCH in
  3404                android)
  3405                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3406                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3407                    have_filesystem=yes
  3408                ;;
  3409                *)
  3410                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3411                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3412                    have_filesystem=yes
  3413                ;;
  3414              esac
  3415         fi
  3416         # Set up files for the timer library
  3417         if test x$enable_timers = xyes; then
  3418             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3419             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3420             have_timers=yes
  3421         fi
  3422         # Set up files for udev hotplugging support
  3423         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3424             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3425         fi
  3426         # Set up files for evdev input
  3427         if test x$use_input_events = xyes; then
  3428             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3429         fi       
  3430         # Set up other core UNIX files
  3431         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3432         ;;
  3433     *-*-cygwin* | *-*-mingw32*)
  3434         ARCH=win32
  3435         if test "$build" != "$host"; then # cross-compiling
  3436             # Default cross-compile location
  3437             ac_default_prefix=/usr/local/cross-tools/$host
  3438         else
  3439             # Look for the location of the tools and install there
  3440             if test "$BUILD_PREFIX" != ""; then
  3441                 ac_default_prefix=$BUILD_PREFIX
  3442             fi
  3443         fi
  3444         CheckDeclarationAfterStatement
  3445         CheckDummyVideo
  3446         CheckDiskAudio
  3447         CheckDummyAudio
  3448         CheckWINDOWS
  3449         CheckWINDOWSGL
  3450         CheckWINDOWSGLES
  3451         CheckVulkan
  3452         CheckDIRECTX
  3453 
  3454         # Set up the core platform files
  3455         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3456 
  3457         # Set up files for the video library
  3458         if test x$enable_video = xyes; then
  3459             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3460             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3461             have_video=yes
  3462             AC_ARG_ENABLE(render-d3d,
  3463 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3464                                 , enable_render_d3d=yes)
  3465             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3466                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3467             fi
  3468             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3469                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3470             fi
  3471         fi
  3472         # Set up files for the audio library
  3473         if test x$enable_audio = xyes; then
  3474             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3475             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3476             if test x$have_dsound = xyes; then
  3477                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3478                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3479             fi
  3480             if test x$have_xaudio2 = xyes; then
  3481                 AC_DEFINE(SDL_AUDIO_DRIVER_XAUDIO2, 1, [ ])
  3482                 SOURCES="$SOURCES $srcdir/src/audio/xaudio2/*.c"
  3483             fi
  3484             if test x$have_wasapi = xyes; then
  3485                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3486                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3487             fi
  3488             have_audio=yes
  3489         fi
  3490         # Set up files for the joystick library
  3491         if test x$enable_joystick = xyes; then
  3492             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3493                 if test x$have_xinput = xyes; then
  3494                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3495                 fi
  3496                 if test x$have_dinput = xyes; then
  3497                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3498                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3499                 fi
  3500             else
  3501                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3502             fi
  3503             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3504             have_joystick=yes
  3505         fi
  3506         if test x$enable_haptic = xyes; then
  3507             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3508                 if test x$have_xinput = xyes; then
  3509                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3510                 fi
  3511                 if test x$have_dinput = xyes; then
  3512                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3513                 fi
  3514                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3515                 have_haptic=yes
  3516             fi
  3517         fi
  3518         if test x$enable_power = xyes; then
  3519             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3520             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3521             have_power=yes
  3522         fi
  3523         if test x$enable_filesystem = xyes; then
  3524             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3525             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3526             have_filesystem=yes
  3527         fi
  3528         # Set up files for the thread library
  3529         if test x$enable_threads = xyes; then
  3530             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3531             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3532             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3533             have_threads=yes
  3534         fi
  3535         # Set up files for the timer library
  3536         if test x$enable_timers = xyes; then
  3537             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3538             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3539             have_timers=yes
  3540         fi
  3541         # Set up files for the shared object loading library
  3542         if test x$enable_loadso = xyes; then
  3543             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3544             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3545             have_loadso=yes
  3546         fi
  3547         # Set up the system libraries we need
  3548         if test -f /lib/w32api/libuuid.a; then
  3549             LIBUUID=/lib/w32api/libuuid.a
  3550         else
  3551             LIBUUID=-luuid
  3552         fi
  3553         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3554         # The Windows platform requires special setup
  3555         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3556         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3557         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3558         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3559 
  3560         # Check to see if this is a mingw or cygwin build
  3561         have_mingw32=
  3562         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3563         if test x$have_mingw32 = xyes; then
  3564             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3565         else
  3566             SDL_LIBS="-lcygwin $SDL_LIBS"
  3567         fi
  3568         ;;
  3569 
  3570     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3571     *-*-beos*)
  3572         AC_MSG_ERROR([
  3573 *** BeOS support has been removed as of SDL 2.0.2.
  3574         ])
  3575         ;;
  3576 
  3577     *-*-haiku*)
  3578         ARCH=haiku
  3579         ac_default_prefix=/boot/system
  3580         CheckDummyVideo
  3581         CheckDiskAudio
  3582         CheckDummyAudio
  3583         CheckDLOPEN
  3584         CheckHaikuVideo
  3585         CheckHaikuGL
  3586         CheckPTHREAD
  3587 
  3588         # Set up files for the audio library
  3589         if test x$enable_audio = xyes; then
  3590             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3591             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3592             SUMMARY_audio="${SUMMARY_audio} haiku"
  3593             have_audio=yes
  3594         fi
  3595         # Set up files for the joystick library
  3596         if test x$enable_joystick = xyes; then
  3597             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3598             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3599             have_joystick=yes
  3600         fi
  3601         # Set up files for the timer library
  3602         if test x$enable_timers = xyes; then
  3603             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3604             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3605             have_timers=yes
  3606         fi
  3607         # Set up files for the system power library
  3608         if test x$enable_power = xyes; then
  3609             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3610             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3611             have_power=yes
  3612         fi
  3613         # Set up files for the system filesystem library
  3614         if test x$enable_filesystem = xyes; then
  3615             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3616             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3617             have_filesystem=yes
  3618         fi
  3619         # The Haiku platform requires special setup.
  3620         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3621         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3622         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3623         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3624         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3625         ;;
  3626     arm*-apple-darwin*|*-ios-*)
  3627         ARCH=ios
  3628 
  3629         CheckVisibilityHidden
  3630         CheckDeclarationAfterStatement
  3631         CheckDummyVideo
  3632         CheckDiskAudio
  3633         CheckDummyAudio
  3634         CheckDLOPEN
  3635         CheckPTHREAD
  3636         CheckVulkan
  3637 
  3638         # Set up files for the audio library
  3639         if test x$enable_audio = xyes; then
  3640             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3641             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3642             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3643             have_audio=yes
  3644         fi
  3645         # Set up files for the joystick library
  3646         if test x$enable_joystick = xyes; then
  3647             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3648             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3649             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3650             have_joystick=yes
  3651         fi
  3652         # Set up files for the haptic library
  3653         #if test x$enable_haptic = xyes; then
  3654         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3655         #    have_haptic=yes
  3656         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3657         #fi
  3658         # Set up files for the power library
  3659         if test x$enable_power = xyes; then
  3660             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3661             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3662             have_power=yes
  3663         fi
  3664         # Set up files for the filesystem library
  3665         if test x$enable_filesystem = xyes; then
  3666             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3667             have_filesystem=yes
  3668         fi
  3669         # Set up additional files for the file library
  3670         if test x$enable_file = xyes; then
  3671             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3672             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3673         fi
  3674         # Set up files for the timer library
  3675         if test x$enable_timers = xyes; then
  3676             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3677             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3678             have_timers=yes
  3679         fi
  3680         # Set up other core UNIX files
  3681         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3682         # The iOS platform requires special setup.
  3683         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3684         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3685         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3686         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3687         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3688         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3689         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3690         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3691         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3692         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3693         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3694         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3695         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3696         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3697         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3698         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3699         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3700         ;;
  3701     *-*-darwin* )
  3702         # This could be either full "Mac OS X", or plain "Darwin" which is
  3703         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3704         # Next line is broken, and a few files below require Mac OS X (full)
  3705         ARCH=macosx
  3706 
  3707         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3708         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3709         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3710 
  3711         CheckVisibilityHidden
  3712         CheckDeclarationAfterStatement
  3713         CheckDummyVideo
  3714         CheckDiskAudio
  3715         CheckDummyAudio
  3716         CheckDLOPEN
  3717         CheckCOCOA
  3718         CheckX11
  3719         CheckMacGL
  3720         CheckOpenGLX11
  3721         CheckVulkan
  3722         CheckPTHREAD
  3723 
  3724         # Set up files for the audio library
  3725         if test x$enable_audio = xyes; then
  3726             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3727             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3728             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3729             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3730             have_audio=yes
  3731         fi
  3732         # Set up files for the joystick library
  3733         if test x$enable_joystick = xyes; then
  3734             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3735             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3736             have_joystick=yes
  3737         fi
  3738         # Set up files for the haptic library
  3739         if test x$enable_haptic = xyes; then
  3740             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3741             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3742             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3743             have_haptic=yes
  3744         fi
  3745         # Set up files for the power library
  3746         if test x$enable_power = xyes; then
  3747             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3748             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3749             have_power=yes
  3750         fi
  3751         # Set up files for the filesystem library
  3752         if test x$enable_filesystem = xyes; then
  3753             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3754             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3755             have_filesystem=yes
  3756         fi
  3757         # Set up files for the timer library
  3758         if test x$enable_timers = xyes; then
  3759             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3760             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3761             have_timers=yes
  3762         fi
  3763         # Set up additional files for the file library
  3764         if test x$enable_file = xyes; then
  3765             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3766         fi
  3767         # Set up other core UNIX files
  3768         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3769         # The Mac OS X platform requires special setup.
  3770         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3771         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3772         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3773         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3774         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3775         ;;
  3776     *-nacl|*-pnacl)
  3777         ARCH=nacl
  3778         CheckNativeClient
  3779         CheckDummyAudio
  3780         CheckDummyVideo
  3781         CheckInputEvents
  3782         CheckPTHREAD
  3783         
  3784         # Set up files for the timer library
  3785         if test x$enable_timers = xyes; then
  3786             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3787             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3788             have_timers=yes
  3789         fi
  3790         
  3791         if test x$enable_filesystem = xyes; then
  3792             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3793             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3794             have_filesystem=yes
  3795         fi
  3796         ;;
  3797     *-*-emscripten* )
  3798         if test x$enable_video = xyes; then
  3799             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3800             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3801             have_video=yes
  3802             SUMMARY_video="${SUMMARY_video} emscripten"
  3803         fi
  3804 
  3805         if test x$enable_audio = xyes; then
  3806             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3807             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3808             have_audio=yes
  3809             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3810         fi
  3811 
  3812         CheckVisibilityHidden
  3813         CheckDeclarationAfterStatement
  3814         CheckDummyVideo
  3815         CheckDiskAudio
  3816         CheckDummyAudio
  3817         CheckDLOPEN
  3818         CheckClockGettime
  3819         CheckEmscriptenGLES
  3820 
  3821          # Set up files for the power library
  3822         if test x$enable_power = xyes; then
  3823             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3824             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3825             have_power=yes
  3826         fi
  3827         
  3828         # Set up files for the power library
  3829         if test x$enable_joystick = xyes; then
  3830             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3831             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3832             have_joystick=yes
  3833         fi
  3834 
  3835         # Set up files for the filesystem library
  3836         if test x$enable_filesystem = xyes; then
  3837             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3838             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3839             have_filesystem=yes
  3840         fi
  3841         # Set up files for the timer library
  3842         if test x$enable_timers = xyes; then
  3843             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3844             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3845             have_timers=yes
  3846         fi
  3847         ;;
  3848     *)
  3849         AC_MSG_ERROR([
  3850 *** Unsupported host:  Please add to configure.in
  3851         ])
  3852         ;;
  3853 esac
  3854 
  3855 # Verify that we have all the platform specific files we need
  3856 
  3857 if test x$have_joystick != xyes; then
  3858     if test x$enable_joystick = xyes; then
  3859         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3860     fi
  3861     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3862 fi
  3863 if test x$have_haptic != xyes; then
  3864     if test x$enable_haptic = xyes; then
  3865         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3866     fi
  3867     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3868 fi
  3869 if test x$have_threads != xyes; then
  3870     if test x$enable_threads = xyes; then
  3871         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3872     fi
  3873     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3874 fi
  3875 if test x$have_timers != xyes; then
  3876     if test x$enable_timers = xyes; then
  3877         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3878     fi
  3879     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3880 fi
  3881 if test x$have_filesystem != xyes; then
  3882     if test x$enable_filesystem = xyes; then
  3883         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3884     fi
  3885     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3886 fi
  3887 if test x$have_loadso != xyes; then
  3888     if test x$enable_loadso = xyes; then
  3889         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3890     fi
  3891     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3892 fi
  3893 if test x$SDLMAIN_SOURCES = x; then
  3894     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3895 fi
  3896 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3897 
  3898 if test x$video_wayland = xyes; then
  3899     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3900     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3901     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3902         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3903     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3904         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3905     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3906     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3907 
  3908     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3909 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3910 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3911 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3912 
  3913     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3914 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3915 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3916 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3917 
  3918     WAYLAND_CORE_PROTOCOL_OBJECT="
  3919 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3920 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3921 
  3922     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3923         do echo ; echo \$p | sed\
  3924         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3925 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3926 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3927 
  3928     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3929         do echo ; echo \$p | sed\
  3930         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3931 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3932 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3933 
  3934     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3935         do echo ; echo \$p | sed\
  3936         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3937 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3938 
  3939     WAYLAND_PROTOCOLS_DEPENDS="
  3940 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3941 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3942 $WAYLAND_CORE_PROTOCOL_OBJECT
  3943 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3944 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3945 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3946 "
  3947 fi
  3948 
  3949 OBJECTS=`echo $SOURCES`
  3950 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3951 for EXT in asm cc m c S; do
  3952     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3953     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3954 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3955 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3956 done
  3957 
  3958 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3959 
  3960 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3961 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3962 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3963 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3964 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3965 	\\$(WINDRES) \\$< \\$@,g"`
  3966 
  3967 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  3968 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  3969 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3970 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3971 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3972 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3973 
  3974 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  3975 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  3976 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3977 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  3978 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  3979 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3980 
  3981 # Set runtime shared library paths as needed
  3982 
  3983 if test "x$enable_rpath" = "xyes"; then
  3984   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  3985     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  3986 
  3987     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  3988     have_enable_new_dtags=no
  3989     save_LDFLAGS="$LDFLAGS"
  3990     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  3991     AC_TRY_LINK([
  3992     ],[
  3993     ],[
  3994     have_enable_new_dtags=yes
  3995     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  3996     ])
  3997     LDFLAGS="$save_LDFLAGS"
  3998     AC_MSG_RESULT($have_enable_new_dtags)
  3999   fi
  4000   if test $ARCH = solaris; then
  4001     SDL_RLD_FLAGS="-R\${libdir}"
  4002   fi
  4003 else
  4004   SDL_RLD_FLAGS=""
  4005 fi
  4006 
  4007 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4008 
  4009 dnl Expand the cflags and libraries needed by apps using SDL
  4010 AC_SUBST(SDL_CFLAGS)
  4011 AC_SUBST(SDL_LIBS)
  4012 AC_SUBST(SDL_STATIC_LIBS)
  4013 AC_SUBST(SDL_RLD_FLAGS)
  4014 if test x$enable_shared = xyes; then
  4015     ENABLE_SHARED_TRUE=
  4016     ENABLE_SHARED_FALSE="#"
  4017 else
  4018     ENABLE_SHARED_TRUE="#"
  4019     ENABLE_SHARED_FALSE=
  4020 fi
  4021 if test x$enable_static = xyes; then
  4022     ENABLE_STATIC_TRUE=
  4023     ENABLE_STATIC_FALSE="#"
  4024 else
  4025     ENABLE_STATIC_TRUE="#"
  4026     ENABLE_STATIC_FALSE=
  4027 fi
  4028 AC_SUBST(ENABLE_SHARED_TRUE)
  4029 AC_SUBST(ENABLE_SHARED_FALSE)
  4030 AC_SUBST(ENABLE_STATIC_TRUE)
  4031 AC_SUBST(ENABLE_STATIC_FALSE)
  4032 
  4033 dnl Expand the sources and objects needed to build the library
  4034 AC_SUBST(ac_aux_dir)
  4035 AC_SUBST(INCLUDE)
  4036 AC_SUBST(OBJECTS)
  4037 AC_SUBST(GEN_HEADERS)
  4038 AC_SUBST(GEN_OBJECTS)
  4039 AC_SUBST(VERSION_OBJECTS)
  4040 AC_SUBST(SDLMAIN_OBJECTS)
  4041 AC_SUBST(SDLTEST_OBJECTS)
  4042 AC_SUBST(BUILD_CFLAGS)
  4043 AC_SUBST(EXTRA_CFLAGS)
  4044 AC_SUBST(BUILD_LDFLAGS)
  4045 AC_SUBST(EXTRA_LDFLAGS)
  4046 AC_SUBST(WINDRES)
  4047 AC_SUBST(WAYLAND_SCANNER)
  4048 
  4049 cat >Makefile.rules <<__EOF__
  4050 
  4051 # Build rules for objects
  4052 -include \$(OBJECTS:.lo=.d)
  4053 
  4054 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4055 $srcdir/src/SDL.c: update-revision
  4056 $DEPENDS
  4057 $VERSION_DEPENDS
  4058 $SDLMAIN_DEPENDS
  4059 $SDLTEST_DEPENDS
  4060 $WAYLAND_PROTOCOLS_DEPENDS
  4061 __EOF__
  4062 
  4063 AC_CONFIG_FILES([
  4064     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4065 ])
  4066 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4067 
  4068 SUMMARY="SDL2 Configure Summary:\n"
  4069 if test x$enable_shared = xyes; then
  4070     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4071 fi
  4072 if test x$enable_static = xyes; then
  4073     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4074 fi
  4075 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4076 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4077 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4078 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4079 if test x$have_x = xyes; then
  4080     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4081 fi
  4082 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4083 if test x$have_samplerate_h_hdr = xyes; then
  4084     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4085 else
  4086     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4087 fi
  4088 if test x$have_libudev_h_hdr = xyes; then
  4089     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4090 else
  4091     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4092 fi
  4093 if test x$have_dbus_dbus_h_hdr = xyes; then
  4094     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4095 else
  4096     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4097 fi
  4098 if test x$enable_ime = xyes; then
  4099     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4100 else
  4101     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4102 fi
  4103 if test x$have_ibus_ibus_h_hdr = xyes; then
  4104     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4105 else
  4106     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4107 fi
  4108 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4109     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4110 else
  4111     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4112 fi
  4113 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4114 
  4115 AC_OUTPUT