configure.in
author Sam Lantinga <slouken@libsdl.org>
Mon, 12 Mar 2018 18:41:06 -0700
changeset 11930 c808a74c019e
parent 11894 cd67e676bca7
child 11951 28be2719184c
permissions -rw-r--r--
Added Mac OpenGL ES configure support
     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="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=8
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=8
    26 SDL_VERSION=$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$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf fabs fabsf floor floorf fmod fmodf log logf log10 log10f pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   280 
   281 	dnl Check for additional non-standard headers
   282     AC_CHECK_HEADERS(libunwind.h)
   283 fi
   284 
   285 dnl AC_CHECK_SIZEOF(void*)
   286 
   287 dnl See whether we can use gcc atomic operations on this architecture
   288 AC_ARG_ENABLE(gcc-atomics,
   289 AC_HELP_STRING([--enable-gcc-atomics],
   290                [Use gcc builtin atomics [[default=yes]]]),
   291               , enable_gcc_atomics=yes)
   292 if test x$enable_gcc_atomics = xyes; then
   293     have_gcc_atomics=no
   294     AC_MSG_CHECKING(for GCC builtin atomic operations)
   295     AC_TRY_LINK([
   296     ],[
   297     int a;
   298     void *x, *y, *z;
   299     __sync_lock_test_and_set(&a, 4);
   300     __sync_lock_test_and_set(&x, y);
   301     __sync_fetch_and_add(&a, 1);
   302     __sync_bool_compare_and_swap(&a, 5, 10);
   303     __sync_bool_compare_and_swap(&x, y, z);
   304     ],[
   305     have_gcc_atomics=yes
   306     ])
   307     AC_MSG_RESULT($have_gcc_atomics)
   308 
   309     if test x$have_gcc_atomics = xyes; then
   310         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   311     else
   312         # See if we have the minimum operation needed for GCC atomics
   313         AC_TRY_LINK([
   314         ],[
   315         int a;
   316         __sync_lock_test_and_set(&a, 1);
   317         __sync_lock_release(&a);
   318         ],[
   319         have_gcc_sync_lock_test_and_set=yes
   320         ])
   321         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   322             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   323         fi
   324     fi
   325 fi
   326 
   327 # Standard C sources
   328 SOURCES="$SOURCES $srcdir/src/*.c"
   329 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   330 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   331 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   332 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   333 SOURCES="$SOURCES $srcdir/src/events/*.c"
   334 SOURCES="$SOURCES $srcdir/src/file/*.c"
   335 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   336 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   337 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   338 SOURCES="$SOURCES $srcdir/src/power/*.c"
   339 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   340 SOURCES="$SOURCES $srcdir/src/render/*.c"
   341 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   342 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   343 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   344 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   345 SOURCES="$SOURCES $srcdir/src/video/*.c"
   346 SOURCES="$SOURCES $srcdir/src/video/yuv2rgb/*.c"
   347 
   348 dnl Enable/disable various subsystems of the SDL library
   349 
   350 AC_ARG_ENABLE(atomic,
   351 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   352               , enable_atomic=yes)
   353 if test x$enable_atomic != xyes; then
   354     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   355 else
   356     SUMMARY_modules="${SUMMARY_modules} atomic"
   357 fi
   358 AC_ARG_ENABLE(audio,
   359 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   360               , enable_audio=yes)
   361 if test x$enable_audio != xyes; then
   362     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   363 else
   364     SUMMARY_modules="${SUMMARY_modules} audio"
   365 fi
   366 AC_ARG_ENABLE(video,
   367 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   368               , enable_video=yes)
   369 if test x$enable_video != xyes; then
   370     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   371 else
   372     SUMMARY_modules="${SUMMARY_modules} video"
   373 fi
   374 AC_ARG_ENABLE(render,
   375 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   376               , enable_render=yes)
   377 if test x$enable_render != xyes; then
   378     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   379 else
   380     SUMMARY_modules="${SUMMARY_modules} render"
   381 fi
   382 AC_ARG_ENABLE(events,
   383 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   384               , enable_events=yes)
   385 if test x$enable_events != xyes; then
   386     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   387 else
   388     SUMMARY_modules="${SUMMARY_modules} events"
   389 fi
   390 AC_ARG_ENABLE(joystick,
   391 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   392               , enable_joystick=yes)
   393 if test x$enable_joystick != xyes; then
   394     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   395 else
   396     SUMMARY_modules="${SUMMARY_modules} joystick"
   397 fi
   398 AC_ARG_ENABLE(haptic,
   399 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   400               , enable_haptic=yes)
   401 if test x$enable_haptic != xyes; then
   402     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   403 else
   404     SUMMARY_modules="${SUMMARY_modules} haptic"
   405 fi
   406 AC_ARG_ENABLE(power,
   407 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   408               , enable_power=yes)
   409 if test x$enable_power != xyes; then
   410     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   411 else
   412     SUMMARY_modules="${SUMMARY_modules} power"
   413 fi
   414 AC_ARG_ENABLE(filesystem,
   415 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   416               , enable_filesystem=yes)
   417 if test x$enable_filesystem != xyes; then
   418     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   419 else
   420     SUMMARY_modules="${SUMMARY_modules} filesystem"
   421 fi
   422 AC_ARG_ENABLE(threads,
   423 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   424               , enable_threads=yes)
   425 if test x$enable_threads != xyes; then
   426     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   427 else
   428     SUMMARY_modules="${SUMMARY_modules} threads"
   429 fi
   430 AC_ARG_ENABLE(timers,
   431 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   432               , enable_timers=yes)
   433 if test x$enable_timers != xyes; then
   434     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   435 else
   436     SUMMARY_modules="${SUMMARY_modules} timers"
   437 fi
   438 AC_ARG_ENABLE(file,
   439 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   440               , enable_file=yes)
   441 if test x$enable_file != xyes; then
   442     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   443 else
   444     SUMMARY_modules="${SUMMARY_modules} file"
   445 fi
   446 AC_ARG_ENABLE(loadso,
   447 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   448               , enable_loadso=yes)
   449 if test x$enable_loadso != xyes; then
   450     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   451 else
   452     SUMMARY_modules="${SUMMARY_modules} loadso"
   453 fi
   454 AC_ARG_ENABLE(cpuinfo,
   455 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   456               , enable_cpuinfo=yes)
   457 if test x$enable_cpuinfo != xyes; then
   458     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   459 else
   460     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   461 fi
   462 AC_ARG_ENABLE(assembly,
   463 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   464               , enable_assembly=yes)
   465 if test x$enable_assembly = xyes; then
   466     SUMMARY_modules="${SUMMARY_modules} assembly"
   467 
   468     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   469 
   470     # Make sure that we don't generate floating point code that would
   471     # cause illegal instruction exceptions on older processors
   472     case "$host" in
   473         *-*-darwin*)
   474             # Don't need to worry about Apple hardware, it's all SSE capable
   475             default_ssemath=yes
   476             ;;
   477         *64-*-*)
   478             # x86 64-bit architectures all have SSE instructions
   479             default_ssemath=yes
   480             ;;
   481         *)
   482             default_ssemath=no
   483             ;;
   484     esac
   485     AC_ARG_ENABLE(ssemath,
   486 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=maybe]]]),
   487                   , enable_ssemath=$default_ssemath)
   488     if test x$enable_ssemath = xno; then
   489         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes -o x$have_gcc_sse3 = xyes; then
   490             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   491         fi
   492     fi
   493 
   494     dnl Check for various instruction support
   495     AC_ARG_ENABLE(mmx,
   496 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   497                   , enable_mmx=yes)
   498     if test x$enable_mmx = xyes; then
   499         save_CFLAGS="$CFLAGS"
   500         have_gcc_mmx=no
   501         AC_MSG_CHECKING(for GCC -mmmx option)
   502         mmx_CFLAGS="-mmmx"
   503         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   504 
   505         AC_TRY_COMPILE([
   506         #ifdef __MINGW32__
   507         #include <_mingw.h>
   508         #ifdef __MINGW64_VERSION_MAJOR
   509         #include <intrin.h>
   510         #else
   511         #include <mmintrin.h>
   512         #endif
   513         #else
   514         #include <mmintrin.h>
   515         #endif
   516         #ifndef __MMX__
   517         #error Assembler CPP flag not enabled
   518         #endif
   519         ],[
   520         ],[
   521         have_gcc_mmx=yes
   522         ])
   523         AC_MSG_RESULT($have_gcc_mmx)
   524         CFLAGS="$save_CFLAGS"
   525 
   526         if test x$have_gcc_mmx = xyes; then
   527             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   528             SUMMARY_math="${SUMMARY_math} mmx"
   529         fi
   530     fi
   531 
   532     AC_ARG_ENABLE(3dnow,
   533 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   534                   , enable_3dnow=yes)
   535     if test x$enable_3dnow = xyes; then
   536         save_CFLAGS="$CFLAGS"
   537         have_gcc_3dnow=no
   538         AC_MSG_CHECKING(for GCC -m3dnow option)
   539         amd3dnow_CFLAGS="-m3dnow"
   540         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   541 
   542         AC_TRY_LINK([
   543         #include <mm3dnow.h>
   544         #ifndef __3dNOW__
   545         #error Assembler CPP flag not enabled
   546         #endif
   547         ],[
   548         void *p = 0;
   549         _m_prefetch(p);
   550         ],[
   551         have_gcc_3dnow=yes
   552         ])
   553         AC_MSG_RESULT($have_gcc_3dnow)
   554         CFLAGS="$save_CFLAGS"
   555 
   556         if test x$have_gcc_3dnow = xyes; then
   557             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   558             SUMMARY_math="${SUMMARY_math} 3dnow"
   559         fi
   560     fi
   561 
   562     AC_ARG_ENABLE(sse,
   563 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   564                   , enable_sse=yes)
   565     if test x$enable_sse = xyes; then
   566         save_CFLAGS="$CFLAGS"
   567         have_gcc_sse=no
   568         AC_MSG_CHECKING(for GCC -msse option)
   569         sse_CFLAGS="-msse"
   570         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   571 
   572         AC_TRY_COMPILE([
   573         #ifdef __MINGW32__
   574         #include <_mingw.h>
   575         #ifdef __MINGW64_VERSION_MAJOR
   576         #include <intrin.h>
   577         #else
   578         #include <xmmintrin.h>
   579         #endif
   580         #else
   581         #include <xmmintrin.h>
   582         #endif
   583         #ifndef __SSE__
   584         #error Assembler CPP flag not enabled
   585         #endif
   586         ],[
   587         ],[
   588         have_gcc_sse=yes
   589         ])
   590         AC_MSG_RESULT($have_gcc_sse)
   591         CFLAGS="$save_CFLAGS"
   592 
   593         if test x$have_gcc_sse = xyes; then
   594             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   595             SUMMARY_math="${SUMMARY_math} sse"
   596         fi
   597     fi
   598 
   599     AC_ARG_ENABLE(sse2,
   600 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=maybe]]]),
   601                   , enable_sse2=$default_ssemath)
   602     if test x$enable_sse2 = xyes; then
   603         save_CFLAGS="$CFLAGS"
   604         have_gcc_sse2=no
   605         AC_MSG_CHECKING(for GCC -msse2 option)
   606         sse2_CFLAGS="-msse2"
   607         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   608 
   609         AC_TRY_COMPILE([
   610         #ifdef __MINGW32__
   611         #include <_mingw.h>
   612         #ifdef __MINGW64_VERSION_MAJOR
   613         #include <intrin.h>
   614         #else
   615         #include <emmintrin.h>
   616         #endif
   617         #else
   618         #include <emmintrin.h>
   619         #endif
   620         #ifndef __SSE2__
   621         #error Assembler CPP flag not enabled
   622         #endif
   623         ],[
   624         ],[
   625         have_gcc_sse2=yes
   626         ])
   627         AC_MSG_RESULT($have_gcc_sse2)
   628         CFLAGS="$save_CFLAGS"
   629 
   630         if test x$have_gcc_sse2 = xyes; then
   631             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   632             SUMMARY_math="${SUMMARY_math} sse2"
   633         fi
   634     fi
   635 
   636     AC_ARG_ENABLE(sse3,
   637 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   638                   , enable_sse3=$default_ssemath)
   639     if test x$enable_sse3 = xyes; then
   640         save_CFLAGS="$CFLAGS"
   641         have_gcc_sse3=no
   642         AC_MSG_CHECKING(for GCC -msse3 option)
   643         sse3_CFLAGS="-msse3"
   644         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   645 
   646         AC_TRY_COMPILE([
   647         #ifdef __MINGW32__
   648         #include <_mingw.h>
   649         #ifdef __MINGW64_VERSION_MAJOR
   650         #include <intrin.h>
   651         #else
   652         #include <pmmintrin.h>
   653         #endif
   654         #else
   655         #include <pmmintrin.h>
   656         #endif
   657         #ifndef __SSE2__
   658         #error Assembler CPP flag not enabled
   659         #endif
   660         ],[
   661         ],[
   662         have_gcc_sse3=yes
   663         ])
   664         AC_MSG_RESULT($have_gcc_sse3)
   665         CFLAGS="$save_CFLAGS"
   666 
   667         if test x$have_gcc_sse3 = xyes; then
   668             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   669             SUMMARY_math="${SUMMARY_math} sse3"
   670         fi
   671     fi
   672 
   673     AC_CHECK_HEADER(immintrin.h,
   674                     have_immintrin_h_hdr=yes,
   675                     have_immintrin_h_hdr=no)
   676     if test x$have_immintrin_h_hdr = xyes; then
   677         AC_DEFINE(HAVE_IMMINTRIN_H, 1, [ ])
   678     fi
   679 
   680     AC_ARG_ENABLE(altivec,
   681 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   682                   , enable_altivec=yes)
   683     if test x$enable_altivec = xyes; then
   684         save_CFLAGS="$CFLAGS"
   685         have_gcc_altivec=no
   686         have_altivec_h_hdr=no
   687         altivec_CFLAGS="-maltivec"
   688         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   689 
   690         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   691         AC_TRY_COMPILE([
   692         #include <altivec.h>
   693         vector unsigned int vzero() {
   694             return vec_splat_u32(0);
   695         }
   696         ],[
   697         ],[
   698         have_gcc_altivec=yes
   699         have_altivec_h_hdr=yes
   700         ])
   701         AC_MSG_RESULT($have_gcc_altivec)
   702 
   703         if test x$have_gcc_altivec = xno; then
   704             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   705             AC_TRY_COMPILE([
   706             vector unsigned int vzero() {
   707                 return vec_splat_u32(0);
   708             }
   709             ],[
   710             ],[
   711             have_gcc_altivec=yes
   712             ])
   713             AC_MSG_RESULT($have_gcc_altivec)
   714         fi
   715 
   716         if test x$have_gcc_altivec = xno; then
   717             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   718             altivec_CFLAGS="-faltivec"
   719             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   720             AC_TRY_COMPILE([
   721             #include <altivec.h>
   722             vector unsigned int vzero() {
   723                 return vec_splat_u32(0);
   724             }
   725             ],[
   726             ],[
   727             have_gcc_altivec=yes
   728             have_altivec_h_hdr=yes
   729             ])
   730             AC_MSG_RESULT($have_gcc_altivec)
   731         fi
   732 
   733         if test x$have_gcc_altivec = xno; then
   734             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   735             AC_TRY_COMPILE([
   736             vector unsigned int vzero() {
   737                 return vec_splat_u32(0);
   738             }
   739             ],[
   740             ],[
   741             have_gcc_altivec=yes
   742             ])
   743             AC_MSG_RESULT($have_gcc_altivec)
   744         fi
   745         CFLAGS="$save_CFLAGS"
   746 
   747         if test x$have_gcc_altivec = xyes; then
   748             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   749             if test x$have_altivec_h_hdr = xyes; then
   750               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   751             fi
   752             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   753             SUMMARY_math="${SUMMARY_math} altivec"
   754         fi
   755     fi
   756 fi
   757 
   758 dnl See if the OSS audio interface is supported
   759 CheckOSS()
   760 {
   761     AC_ARG_ENABLE(oss,
   762 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   763                   , enable_oss=maybe)
   764 
   765     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   766     #  use sndio instead. So on there, we default to disabled. You can force
   767     #  it on if you really want, though.
   768     if test x$enable_oss = xmaybe; then
   769         enable_oss=yes
   770         case "$host" in
   771             *-*-openbsd*)
   772                 enable_oss=no;;
   773         esac
   774     fi
   775 
   776     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   777         AC_MSG_CHECKING(for OSS audio support)
   778         have_oss=no
   779         if test x$have_oss != xyes; then
   780             AC_TRY_COMPILE([
   781               #include <sys/soundcard.h>
   782             ],[
   783               int arg = SNDCTL_DSP_SETFRAGMENT;
   784             ],[
   785             have_oss=yes
   786             ])
   787         fi
   788         if test x$have_oss != xyes; then
   789             AC_TRY_COMPILE([
   790               #include <soundcard.h>
   791             ],[
   792               int arg = SNDCTL_DSP_SETFRAGMENT;
   793             ],[
   794             have_oss=yes
   795             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   796             ])
   797         fi
   798         AC_MSG_RESULT($have_oss)
   799         if test x$have_oss = xyes; then
   800             SUMMARY_audio="${SUMMARY_audio} oss"
   801             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   802             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   803             have_audio=yes
   804 
   805             # We may need to link with ossaudio emulation library
   806             case "$host" in
   807                 *-*-openbsd*|*-*-netbsd*)
   808                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   809             esac
   810         fi
   811     fi
   812 }
   813 
   814 dnl See if the ALSA audio interface is supported
   815 CheckALSA()
   816 {
   817     AC_ARG_ENABLE(alsa,
   818 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   819                   , enable_alsa=yes)
   820     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   821         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   822         # Restore all flags from before the ALSA detection runs
   823         CFLAGS="$alsa_save_CFLAGS"
   824         LDFLAGS="$alsa_save_LDFLAGS"
   825         LIBS="$alsa_save_LIBS"
   826         if test x$have_alsa = xyes; then
   827             AC_ARG_ENABLE(alsa-shared,
   828 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   829                           , enable_alsa_shared=yes)
   830             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   831 
   832             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   833             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   834             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   835             if test x$have_loadso != xyes && \
   836                test x$enable_alsa_shared = xyes; then
   837                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   838             fi
   839             if test x$have_loadso = xyes && \
   840                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   841                 echo "-- dynamic libasound -> $alsa_lib"
   842                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   843                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   844             else
   845                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   846                 SUMMARY_audio="${SUMMARY_audio} alsa"
   847             fi
   848             have_audio=yes
   849         fi
   850     fi
   851 }
   852 
   853 dnl Find JACK Audio
   854 CheckJACK()
   855 {
   856     AC_ARG_ENABLE(jack,
   857 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   858                   , enable_jack=yes)
   859     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   860         audio_jack=no
   861 
   862         JACK_REQUIRED_VERSION=0.125
   863 
   864         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   865         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   866         if test x$PKG_CONFIG != xno; then
   867         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   868                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   869                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   870                 audio_jack=yes
   871             fi
   872         fi
   873         AC_MSG_RESULT($audio_jack)
   874 
   875         if test x$audio_jack = xyes; then
   876             AC_ARG_ENABLE(jack-shared,
   877 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   878                           , enable_jack_shared=yes)
   879             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   880 
   881             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   882             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   883             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   884             if test x$have_loadso != xyes && \
   885                test x$enable_jack_shared = xyes; then
   886                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   887             fi
   888             if test x$have_loadso = xyes && \
   889                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   890                 echo "-- dynamic libjack -> $jack_lib"
   891                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   892                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   893 
   894                 case "$host" in
   895                     # On Solaris, jack must be linked deferred explicitly
   896                     # to prevent undefined symbol failures.
   897                     *-*-solaris*)
   898                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   899                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   900                 esac
   901             else
   902                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   903                 SUMMARY_audio="${SUMMARY_audio} jack"
   904             fi
   905             have_audio=yes
   906         fi
   907     fi
   908 }
   909 
   910 dnl Find the ESD includes and libraries
   911 CheckESD()
   912 {
   913     AC_ARG_ENABLE(esd,
   914 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   915                   , enable_esd=yes)
   916     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   917         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   918         if test x$have_esd = xyes; then
   919             AC_ARG_ENABLE(esd-shared,
   920 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   921                           , enable_esd_shared=yes)
   922             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   923 
   924             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   925             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   926             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   927             if test x$have_loadso != xyes && \
   928                test x$enable_esd_shared = xyes; then
   929                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   930             fi
   931             if test x$have_loadso = xyes && \
   932                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   933                 echo "-- dynamic libesd -> $esd_lib"
   934                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   935                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   936             else
   937                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   938                 SUMMARY_audio="${SUMMARY_audio} esd"
   939             fi
   940             have_audio=yes
   941         fi
   942     fi
   943 }
   944 
   945 dnl Find PulseAudio
   946 CheckPulseAudio()
   947 {
   948     AC_ARG_ENABLE(pulseaudio,
   949 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   950                   , enable_pulseaudio=yes)
   951     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   952         audio_pulseaudio=no
   953 
   954         PULSEAUDIO_REQUIRED_VERSION=0.9
   955 
   956         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   957         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   958         if test x$PKG_CONFIG != xno; then
   959         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   960                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   961                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   962                 audio_pulseaudio=yes
   963             fi
   964         fi
   965         AC_MSG_RESULT($audio_pulseaudio)
   966 
   967         if test x$audio_pulseaudio = xyes; then
   968             AC_ARG_ENABLE(pulseaudio-shared,
   969 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   970                           , enable_pulseaudio_shared=yes)
   971             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   972 
   973             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   974             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   975             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   976             if test x$have_loadso != xyes && \
   977                test x$enable_pulseaudio_shared = xyes; then
   978                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   979             fi
   980             if test x$have_loadso = xyes && \
   981                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   982                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   983                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   984                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   985 
   986                 case "$host" in
   987                     # On Solaris, pulseaudio must be linked deferred explicitly
   988                     # to prevent undefined symbol failures.
   989                     *-*-solaris*)
   990                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   991                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   992                 esac
   993             else
   994                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   995                 SUMMARY_audio="${SUMMARY_audio} pulse"
   996             fi
   997             have_audio=yes
   998         fi
   999     fi
  1000 }
  1001 
  1002 CheckARTSC()
  1003 {
  1004     AC_ARG_ENABLE(arts,
  1005 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
  1006                   , enable_arts=yes)
  1007     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
  1008         AC_PATH_PROG(ARTSCONFIG, artsc-config)
  1009         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
  1010             : # arts isn't installed
  1011         else
  1012             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1013             ARTS_LIBS=`$ARTSCONFIG --libs`
  1014             AC_MSG_CHECKING(for aRts development environment)
  1015             audio_arts=no
  1016             save_CFLAGS="$CFLAGS"
  1017             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1018             AC_TRY_COMPILE([
  1019              #include <artsc.h>
  1020             ],[
  1021              arts_stream_t stream;
  1022             ],[
  1023             audio_arts=yes
  1024             ])
  1025             CFLAGS="$save_CFLAGS"
  1026             AC_MSG_RESULT($audio_arts)
  1027             if test x$audio_arts = xyes; then
  1028                 AC_ARG_ENABLE(arts-shared,
  1029 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1030                               , enable_arts_shared=yes)
  1031                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1032 
  1033                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1034                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1035                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1036                 if test x$have_loadso != xyes && \
  1037                    test x$enable_arts_shared = xyes; then
  1038                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1039                 fi
  1040                 if test x$have_loadso = xyes && \
  1041                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1042                     echo "-- dynamic libartsc -> $arts_lib"
  1043                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1044                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1045                 else
  1046                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1047                     SUMMARY_audio="${SUMMARY_audio} arts"
  1048                 fi
  1049                 have_audio=yes
  1050             fi
  1051         fi
  1052     fi
  1053 }
  1054 
  1055 dnl See if the NAS audio interface is supported
  1056 CheckNAS()
  1057 {
  1058     AC_ARG_ENABLE(nas,
  1059 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1060                   , enable_nas=yes)
  1061     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1062         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1063         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1064 
  1065         AC_MSG_CHECKING(for NAS audio support)
  1066         have_nas=no
  1067 
  1068         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1069             have_nas=yes
  1070             NAS_LIBS="-laudio"
  1071 
  1072         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1073             have_nas=yes
  1074             NAS_CFLAGS="-I/usr/X11R6/include/"
  1075             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1076 
  1077         fi
  1078 
  1079         AC_MSG_RESULT($have_nas)
  1080 
  1081         if test x$have_nas = xyes; then
  1082             AC_ARG_ENABLE(nas-shared,
  1083 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1084                           , enable_nas_shared=yes)
  1085             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1086 
  1087             if test x$have_loadso != xyes && \
  1088                test x$enable_nas_shared = xyes; then
  1089                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1090             fi
  1091             if test x$have_loadso = xyes && \
  1092                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1093                 echo "-- dynamic libaudio -> $nas_lib"
  1094                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1095                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1096             else
  1097                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1098                 SUMMARY_audio="${SUMMARY_audio} nas"
  1099             fi
  1100 
  1101             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1102             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1103             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1104             have_audio=yes
  1105         fi
  1106     fi
  1107 }
  1108 
  1109 dnl See if the sndio audio interface is supported
  1110 CheckSNDIO()
  1111 {
  1112     AC_ARG_ENABLE(sndio,
  1113 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1114                   , enable_sndio=yes)
  1115     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1116         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1117         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1118 
  1119         AC_MSG_CHECKING(for sndio audio support)
  1120         have_sndio=no
  1121 
  1122         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1123             have_sndio=yes
  1124             SNDIO_LIBS="-lsndio"
  1125         fi
  1126 
  1127         AC_MSG_RESULT($have_sndio)
  1128 
  1129         if test x$have_sndio = xyes; then
  1130             AC_ARG_ENABLE(sndio-shared,
  1131 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1132                           , enable_sndio_shared=yes)
  1133             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1134 
  1135             if test x$have_loadso != xyes && \
  1136                test x$enable_sndio_shared = xyes; then
  1137                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1138             fi
  1139             if test x$have_loadso = xyes && \
  1140                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1141                 echo "-- dynamic libsndio -> $sndio_lib"
  1142                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1143                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1144             else
  1145                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1146                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1147             fi
  1148 
  1149             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1150             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1151             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1152             have_audio=yes
  1153         fi
  1154     fi
  1155 }
  1156 
  1157 dnl Find FusionSound
  1158 CheckFusionSound()
  1159 {
  1160     AC_ARG_ENABLE(fusionsound,
  1161 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1162                   , enable_fusionsound=no)
  1163     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1164         fusionsound=no
  1165 
  1166         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1167 
  1168         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1169         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1170         if test x$PKG_CONFIG != xno; then
  1171             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1172                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1173                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1174                 fusionsound=yes
  1175             fi
  1176         fi
  1177         AC_MSG_RESULT($fusionsound)
  1178 
  1179         if test x$fusionsound = xyes; then
  1180             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1181             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1182             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1183             
  1184             AC_ARG_ENABLE(fusionsound-shared,
  1185 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1186                           , enable_fusionsound_shared=yes)
  1187             fusionsound_shared=no
  1188             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1189             if test x$have_loadso != xyes && \
  1190                test x$enable_fusionsound_shared = xyes; then
  1191                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1192             fi
  1193             if test x$have_loadso = xyes && \
  1194                test x$enable_fusionsound_shared = xyes; then
  1195                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1196                 fusionsound_shared=yes
  1197                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1198             else
  1199                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1200                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1201             fi
  1202             AC_MSG_RESULT($fusionsound_shared)
  1203             
  1204             have_audio=yes
  1205         fi
  1206     fi
  1207 }
  1208 
  1209 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1210 CheckDiskAudio()
  1211 {
  1212     AC_ARG_ENABLE(diskaudio,
  1213 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1214                   , enable_diskaudio=yes)
  1215     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1216         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1217         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1218         SUMMARY_audio="${SUMMARY_audio} disk"
  1219     fi
  1220 }
  1221 
  1222 dnl rcg03142006 See if the user wants the dummy audio driver...
  1223 CheckDummyAudio()
  1224 {
  1225     AC_ARG_ENABLE(dummyaudio,
  1226 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1227                   , enable_dummyaudio=yes)
  1228     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1229         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1230         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1231         SUMMARY_audio="${SUMMARY_audio} dummy"
  1232     fi
  1233 }
  1234 
  1235 dnl See if libsamplerate is available
  1236 CheckLibSampleRate()
  1237 {
  1238     AC_ARG_ENABLE(libsamplerate,
  1239 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1240                   , enable_libsamplerate=yes)
  1241     if test x$enable_libsamplerate = xyes; then
  1242         AC_CHECK_HEADER(samplerate.h,
  1243                         have_samplerate_h_hdr=yes,
  1244                         have_samplerate_h_hdr=no)
  1245         if test x$have_samplerate_h_hdr = xyes; then
  1246             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1247 
  1248             AC_ARG_ENABLE(libsamplerate-shared,
  1249 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1250                           , enable_libsamplerate_shared=yes)
  1251 
  1252             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1253 
  1254             if test x$have_loadso != xyes && \
  1255                test x$enable_libsamplerate_shared = xyes; then
  1256                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1257             fi
  1258             if test x$have_loadso = xyes && \
  1259                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1260                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1261                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1262             else
  1263                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1264             fi
  1265         fi
  1266     fi
  1267 }
  1268 
  1269 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1270 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1271 CheckVisibilityHidden()
  1272 {
  1273     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1274     have_gcc_fvisibility=no
  1275 
  1276     visibility_CFLAGS="-fvisibility=hidden"
  1277     save_CFLAGS="$CFLAGS"
  1278     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1279     AC_TRY_COMPILE([
  1280     #if !defined(__GNUC__) || __GNUC__ < 4
  1281     #error SDL only uses visibility attributes in GCC 4 or newer
  1282     #endif
  1283     ],[
  1284     ],[
  1285     have_gcc_fvisibility=yes
  1286     ])
  1287     AC_MSG_RESULT($have_gcc_fvisibility)
  1288     CFLAGS="$save_CFLAGS"
  1289 
  1290     if test x$have_gcc_fvisibility = xyes; then
  1291         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1292     fi
  1293 }
  1294 
  1295 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1296 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1297 CheckStackBoundary()
  1298 {
  1299     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1300     have_gcc_preferred_stack_boundary=no
  1301 
  1302     save_CFLAGS="$CFLAGS"
  1303     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1304     AC_TRY_COMPILE([
  1305     int x = 0;
  1306     ],[
  1307     ],[
  1308     have_gcc_preferred_stack_boundary=yes
  1309     ])
  1310     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1311     CFLAGS="$save_CFLAGS"
  1312 
  1313     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1314         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1315     fi
  1316 }
  1317 
  1318 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1319 dnl  This lets us catch things that would fail on a C89 compiler when using
  1320 dnl  a modern GCC.
  1321 CheckDeclarationAfterStatement()
  1322 {
  1323     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1324     have_gcc_declaration_after_statement=no
  1325 
  1326     save_CFLAGS="$CFLAGS"
  1327     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1328     AC_TRY_COMPILE([
  1329     int x = 0;
  1330     ],[
  1331     ],[
  1332     have_gcc_declaration_after_statement=yes
  1333     ])
  1334     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1335     CFLAGS="$save_CFLAGS"
  1336 
  1337     if test x$have_gcc_declaration_after_statement = xyes; then
  1338         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1339     fi
  1340 }
  1341 
  1342 dnl See if GCC's -Wall is supported.
  1343 CheckWarnAll()
  1344 {
  1345     AC_MSG_CHECKING(for GCC -Wall option)
  1346     have_gcc_Wall=no
  1347 
  1348     save_CFLAGS="$CFLAGS"
  1349     CFLAGS="$save_CFLAGS -Wall"
  1350     AC_TRY_COMPILE([
  1351     int x = 0;
  1352     ],[
  1353     ],[
  1354     have_gcc_Wall=yes
  1355     ])
  1356     AC_MSG_RESULT($have_gcc_Wall)
  1357     CFLAGS="$save_CFLAGS"
  1358 
  1359     if test x$have_gcc_Wall = xyes; then
  1360         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1361 
  1362         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1363         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1364         need_gcc_Wno_multichar=no
  1365         case "$host" in
  1366             *-*-haiku*)
  1367                 need_gcc_Wno_multichar=yes
  1368                 ;;
  1369         esac
  1370         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1371         if test x$need_gcc_Wno_multichar = xyes; then
  1372             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1373         fi
  1374     fi
  1375 }
  1376 
  1377 dnl Check for Wayland
  1378 CheckWayland()
  1379 {
  1380     AC_ARG_ENABLE(video-wayland,
  1381 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1382                   ,enable_video_wayland=yes)
  1383 
  1384     AC_ARG_ENABLE(video-wayland-qt-touch,
  1385 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1386                   ,enable_video_wayland_qt_touch=yes)
  1387 
  1388     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1389         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1390         AC_MSG_CHECKING(for Wayland support)
  1391         video_wayland=no
  1392         if  test x$PKG_CONFIG != xno && \
  1393             test x$video_opengl_egl = xyes && \
  1394             test x$video_opengles_v2 = xyes; then
  1395             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1396                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1397                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1398                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1399                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1400                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1401                 video_wayland=yes
  1402             fi
  1403         fi
  1404         AC_MSG_RESULT($video_wayland)
  1405 
  1406         if test x$video_wayland = xyes; then
  1407             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1408             if test x$enable_video_wayland_qt_touch = xyes; then
  1409                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1410             fi
  1411 
  1412             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1 xdg-shell-unstable-v6"
  1413 
  1414             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1415             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1416             AC_ARG_ENABLE(wayland-shared,
  1417 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1418                           , enable_wayland_shared=maybe)
  1419 
  1420             dnl FIXME: Do BSD and OS X need special cases?
  1421             case "$host" in
  1422                 *)
  1423                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1424                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1425                     if test x$wayland_egl_lib = x; then
  1426                         dnl This works in Ubuntu 13.10, maybe others
  1427                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1428                     fi
  1429                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1430                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1431                     ;;
  1432             esac
  1433 
  1434             if test x$enable_wayland_shared = xmaybe; then
  1435                 enable_wayland_shared=yes
  1436             fi
  1437             if test x$have_loadso != xyes && \
  1438                test x$enable_wayland_shared = xyes; then
  1439                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1440                 enable_wayland_shared=no
  1441             fi
  1442             if test x$have_loadso = xyes && \
  1443                test x$enable_wayland_shared = xyes && \
  1444                test x$wayland_client_lib != x && \
  1445                test x$wayland_egl_lib != x && \
  1446                test x$wayland_cursor_lib != x && \
  1447                test x$xkbcommon_lib != x; then
  1448                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1449                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1450                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1451                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1452                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1453                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1454                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1455                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1456                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1457             else
  1458                 enable_wayland_shared=no
  1459                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1460                 SUMMARY_video="${SUMMARY_video} wayland"
  1461             fi
  1462             have_video=yes
  1463         fi
  1464     fi
  1465 }
  1466 
  1467 dnl Check for Mir
  1468 CheckMir()
  1469 {
  1470     AC_ARG_ENABLE(video-mir,
  1471 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=no]]]),
  1472                   ,enable_video_mir=no)
  1473 
  1474     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1475         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1476         AC_MSG_CHECKING(for Mir support)
  1477         video_mir=no
  1478         if test x$PKG_CONFIG != xno; then
  1479             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1480                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1481                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1482                 save_CFLAGS="$CFLAGS"
  1483                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1484 
  1485                 dnl This will disable Mir if >= v0.26 is not available
  1486                 AC_TRY_COMPILE([
  1487                 #include <mir_toolkit/mir_client_library.h>
  1488                 ],[
  1489                     MirWindowAttrib attrib = mir_window_attrib_state
  1490                 ],[
  1491                 video_mir=yes
  1492                 ])
  1493                 CFLAGS="$save_CFLAGS"
  1494             fi
  1495         fi
  1496         AC_MSG_RESULT($video_mir)
  1497 
  1498         if test x$video_mir = xyes; then
  1499             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1500             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1501             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1502             AC_ARG_ENABLE(mir-shared,
  1503 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1504                           , enable_mir_shared=maybe)
  1505 
  1506             dnl FIXME: Do BSD and OS X need special cases?
  1507             case "$host" in
  1508                 *)
  1509                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1510                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1511                     ;;
  1512             esac
  1513 
  1514             if test x$enable_mir_shared = xmaybe; then
  1515                 enable_mir_shared=yes
  1516             fi
  1517             if test x$have_loadso != xyes && \
  1518                test x$enable_mir_shared = xyes; then
  1519                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1520                 enable_mir_shared=no
  1521             fi
  1522             if test x$have_loadso = xyes && \
  1523                test x$enable_mir_shared = xyes && \
  1524                test x$mirclient_lib != x && \
  1525                test x$xkbcommon_lib != x; then
  1526                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1527                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1528                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1529                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1530                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1531             else
  1532                 enable_mir_shared=no
  1533                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1534                 SUMMARY_video="${SUMMARY_video} mir"
  1535             fi
  1536             have_video=yes
  1537         fi
  1538     fi
  1539 }
  1540 
  1541 dnl Check for Native Client stuff
  1542 CheckNativeClient()
  1543 {
  1544         AC_TRY_COMPILE([
  1545           #if !defined(__native_client__)
  1546           #error "NO NACL"
  1547           #endif
  1548         ],[
  1549         ],[
  1550         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1551         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1552         AC_DEFINE(HAVE_POW, 1, [ ])
  1553         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1554         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1555         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1556 
  1557         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1558 
  1559         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1560         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1561         SUMMARY_audio="${SUMMARY_audio} nacl"
  1562         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1563         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1564         ])
  1565 }
  1566 
  1567 
  1568 CheckRPI()
  1569 {
  1570     AC_ARG_ENABLE(video-rpi,
  1571 AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
  1572                   , enable_video_rpi=yes)
  1573     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
  1574         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1575         if test x$PKG_CONFIG != xno && $PKG_CONFIG --exists bcm_host; then
  1576             RPI_CFLAGS=`$PKG_CONFIG --cflags bcm_host brcmegl`
  1577             RPI_LDFLAGS=`$PKG_CONFIG --libs bcm_host brcmegl`
  1578         elif test x$ARCH = xnetbsd; then
  1579             RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  1580             RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
  1581         else
  1582             RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  1583             RPI_LDFLAGS="-Wl,-rpath,/opt/vc/lib -L/opt/vc/lib -lbcm_host"
  1584         fi
  1585 
  1586         # Save the original compiler flags and libraries
  1587         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1588 
  1589         # Add the Raspberry Pi compiler flags and libraries
  1590         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_LDFLAGS"
  1591 
  1592         AC_MSG_CHECKING(for Raspberry Pi)
  1593         have_video_rpi=no
  1594         AC_TRY_LINK([
  1595           #include <bcm_host.h>
  1596         ],[
  1597           bcm_host_init();
  1598         ],[
  1599         have_video_rpi=yes
  1600         ],[
  1601         ])
  1602         AC_MSG_RESULT($have_video_rpi)
  1603 
  1604         # Restore the compiler flags and libraries
  1605         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1606         
  1607         if test x$have_video_rpi = xyes; then
  1608             CFLAGS="$CFLAGS $RPI_CFLAGS"
  1609             SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  1610             EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  1611             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_LDFLAGS"
  1612             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  1613             AC_DEFINE(SDL_VIDEO_DRIVER_RPI, 1, [ ])
  1614             SUMMARY_video="${SUMMARY_video} rpi"
  1615         fi
  1616     fi
  1617 }
  1618 
  1619 dnl Find the X11 include and library directories
  1620 CheckX11()
  1621 {
  1622     AC_ARG_ENABLE(video-x11,
  1623 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1624                   , enable_video_x11=yes)
  1625     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1626         case "$host" in
  1627             *-*-darwin*)
  1628                 # This isn't necessary for X11, but fixes GLX detection
  1629                 if test "x$x_includes" = xNONE && \
  1630                    test "x$x_libraries" = xNONE && \
  1631                    test -d /usr/X11R6/include && \
  1632                    test -d /usr/X11R6/lib; then
  1633                     x_includes="/usr/X11R6/include"
  1634                     x_libraries="/usr/X11R6/lib"
  1635                 fi
  1636                 ;;
  1637         esac
  1638         AC_PATH_X
  1639         AC_PATH_XTRA
  1640         if test x$have_x = xyes; then
  1641             AC_ARG_ENABLE(x11-shared,
  1642 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1643                           , enable_x11_shared=maybe)
  1644 
  1645             case "$host" in
  1646                 *-*-darwin*)
  1647                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1648                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1649                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1650                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1651                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1652                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1653                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1654                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1655                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1656                     ;;
  1657                 *-*-openbsd*)
  1658                     x11_lib='libX11.so'
  1659                     x11ext_lib='libXext.so'
  1660                     xcursor_lib='libXcursor.so'
  1661                     xinerama_lib='libXinerama.so'
  1662                     xinput_lib='libXi.so'
  1663                     xrandr_lib='libXrandr.so'
  1664                     xrender_lib='libXrender.so'
  1665                     xss_lib='libXss.so'
  1666                     xvidmode_lib='libXxf86vm.so'
  1667                     ;;
  1668                 *)
  1669                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1670                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1671                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1672                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1673                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1674                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1675                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1676                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1677                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1678                     ;;
  1679             esac
  1680 
  1681             if test x$ac_cv_func_shmat != xyes; then
  1682                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1683             fi
  1684             CFLAGS="$CFLAGS $X_CFLAGS"
  1685             LDFLAGS="$LDFLAGS $X_LIBS"
  1686 
  1687             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1688                             have_xext_h_hdr=yes,
  1689                             have_xext_h_hdr=no,
  1690                             [#include <X11/Xlib.h>
  1691                              #include <X11/Xproto.h>
  1692                             ])
  1693             if test x$have_xext_h_hdr != xyes; then
  1694                AC_MSG_ERROR([
  1695 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1696                ])
  1697             fi
  1698 
  1699             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1700             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1701             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1702 
  1703             # Needed so SDL applications can include SDL_syswm.h
  1704             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1705 
  1706             if test x$enable_x11_shared = xmaybe; then
  1707                 enable_x11_shared=yes
  1708             fi
  1709             if test x$have_loadso != xyes && \
  1710                test x$enable_x11_shared = xyes; then
  1711                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1712                 enable_x11_shared=no
  1713             fi
  1714             if test x$have_loadso = xyes && \
  1715                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1716                 echo "-- dynamic libX11 -> $x11_lib"
  1717                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1718                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1719                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1720                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1721             else
  1722                 enable_x11_shared=no
  1723                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1724                 SUMMARY_video="${SUMMARY_video} x11"
  1725             fi
  1726             have_video=yes
  1727 
  1728             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1729             have_const_param_XextAddDisplay=no
  1730             AC_TRY_COMPILE([
  1731               #include <X11/Xlib.h>
  1732               #include <X11/Xproto.h>
  1733               #include <X11/extensions/Xext.h>
  1734               #include <X11/extensions/extutil.h>
  1735               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1736             ],[
  1737             ],[
  1738             have_const_param_XextAddDisplay=yes
  1739             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1740             ])
  1741             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1742 
  1743             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1744             AC_MSG_CHECKING([for XGenericEvent])
  1745             have_XGenericEvent=no
  1746             AC_TRY_COMPILE([
  1747               	#include <X11/Xlib.h>
  1748             ],[
  1749 Display *display;
  1750 XEvent event;
  1751 XGenericEventCookie *cookie = &event.xcookie;
  1752 XNextEvent(display, &event);
  1753 XGetEventData(display, cookie);
  1754 XFreeEventData(display, cookie);
  1755             ],[
  1756                 have_XGenericEvent=yes
  1757                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1758             ])
  1759             AC_MSG_RESULT($have_XGenericEvent)
  1760 
  1761             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1762 
  1763             AC_ARG_ENABLE(video-x11-xcursor,
  1764 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1765                             , enable_video_x11_xcursor=yes)
  1766             if test x$enable_video_x11_xcursor = xyes; then
  1767                 definitely_enable_video_x11_xcursor=no
  1768                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1769                                 have_xcursor_h_hdr=yes,
  1770                                 have_xcursor_h_hdr=no,
  1771                                 [#include <X11/Xlib.h>
  1772                                 ])
  1773                 if test x$have_xcursor_h_hdr = xyes; then
  1774                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1775                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1776                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1777                         definitely_enable_video_x11_xcursor=yes
  1778                     else
  1779                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1780                         if test x$have_xcursor_lib = xyes ; then
  1781                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1782                             definitely_enable_video_x11_xcursor=yes
  1783                         fi
  1784                     fi
  1785                 fi
  1786             fi
  1787             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1788                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1789                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1790             fi
  1791             AC_ARG_ENABLE(video-x11-xdbe,
  1792 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1793                             , enable_video_x11_xdbe=yes)
  1794             if test x$enable_video_x11_xdbe = xyes; then
  1795                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1796                                 have_dbe_h_hdr=yes,
  1797                                 have_dbe_h_hdr=no,
  1798                                 [#include <X11/Xlib.h>
  1799                                 ])
  1800                 if test x$have_dbe_h_hdr = xyes; then
  1801                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1802                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1803                 fi
  1804             fi
  1805             AC_ARG_ENABLE(video-x11-xinerama,
  1806 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1807                             , enable_video_x11_xinerama=yes)
  1808             if test x$enable_video_x11_xinerama = xyes; then
  1809                 definitely_enable_video_x11_xinerama=no
  1810                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1811                                 have_xinerama_h_hdr=yes,
  1812                                 have_xinerama_h_hdr=no,
  1813                                 [#include <X11/Xlib.h>
  1814                                 ])
  1815                 if test x$have_xinerama_h_hdr = xyes; then
  1816                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1817                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1818                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1819                         definitely_enable_video_x11_xinerama=yes
  1820                     else
  1821                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1822                         if test x$have_xinerama_lib = xyes ; then
  1823                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1824                             definitely_enable_video_x11_xinerama=yes
  1825                         fi
  1826                     fi
  1827                 fi
  1828             fi
  1829             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1830                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1831                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1832             fi
  1833             AC_ARG_ENABLE(video-x11-xinput,
  1834 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1835                             , enable_video_x11_xinput=yes)
  1836             if test x$enable_video_x11_xinput = xyes; then
  1837                 definitely_enable_video_x11_xinput=no
  1838                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1839                                 have_xinput_h_hdr=yes,
  1840                                 have_xinput_h_hdr=no,
  1841                                 [#include <X11/Xlib.h>
  1842                                 ])
  1843                 if test x$have_xinput_h_hdr = xyes; then
  1844                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1845                         echo "-- dynamic libXi -> $xinput_lib"
  1846                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1847                         definitely_enable_video_x11_xinput=yes
  1848                     else
  1849                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1850                         if test x$have_xinput_lib = xyes ; then
  1851                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1852                             definitely_enable_video_x11_xinput=yes
  1853                         fi
  1854                     fi
  1855                 fi
  1856             fi
  1857             if test x$definitely_enable_video_x11_xinput = xyes; then
  1858                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1859                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1860                 AC_MSG_CHECKING(for xinput2 multitouch)
  1861             	have_xinput2_multitouch=no
  1862             	AC_TRY_COMPILE([
  1863               		#include <X11/Xlib.h>
  1864              		#include <X11/Xproto.h>
  1865 			#include <X11/extensions/XInput2.h>
  1866             	],[
  1867 int event_type = XI_TouchBegin;
  1868 XITouchClassInfo *t;
  1869             	],[
  1870             	have_xinput2_multitouch=yes
  1871             	AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1872                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1873             	])
  1874             	AC_MSG_RESULT($have_xinput2_multitouch)
  1875             fi
  1876             AC_ARG_ENABLE(video-x11-xrandr,
  1877 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1878                             , enable_video_x11_xrandr=yes)
  1879             if test x$enable_video_x11_xrandr = xyes; then
  1880                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1881                 definitely_enable_video_x11_xrandr=no
  1882                 have_xrandr_h_hdr=no
  1883                 AC_TRY_COMPILE([
  1884                 #include <X11/Xlib.h>
  1885                 #include <X11/extensions/Xrandr.h>
  1886                 ],[
  1887                 XRRScreenResources *res = NULL;
  1888                 ],[
  1889                 have_xrandr_h_hdr=yes
  1890                 ])
  1891                 if test x$have_xrandr_h_hdr = xyes; then
  1892                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1893                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1894                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1895                         definitely_enable_video_x11_xrandr=yes
  1896                     else
  1897                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1898                         if test x$have_xrandr_lib = xyes ; then
  1899                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1900                             definitely_enable_video_x11_xrandr=yes
  1901                         fi
  1902                     fi
  1903                 fi
  1904             fi
  1905             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1906                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1907                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1908             fi
  1909             AC_ARG_ENABLE(video-x11-scrnsaver,
  1910 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1911                             , enable_video_x11_scrnsaver=yes)
  1912             if test x$enable_video_x11_scrnsaver = xyes; then
  1913                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1914                                 have_scrnsaver_h_hdr=yes,
  1915                                 have_scrnsaver_h_hdr=no,
  1916                                 [#include <X11/Xlib.h>
  1917                                 ])
  1918                 if test x$have_scrnsaver_h_hdr = xyes; then
  1919                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1920                         echo "-- dynamic libXss -> $xss_lib"
  1921                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1922                         definitely_enable_video_x11_scrnsaver=yes
  1923                     else
  1924                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1925                         if test x$have_xss_lib = xyes ; then
  1926                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1927                             definitely_enable_video_x11_scrnsaver=yes
  1928                         fi
  1929                     fi
  1930                 fi
  1931             fi
  1932             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1933                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1934                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1935             fi
  1936             AC_ARG_ENABLE(video-x11-xshape,
  1937 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1938                             , enable_video_x11_xshape=yes)
  1939             if test x$enable_video_x11_xshape = xyes; then
  1940                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1941                                 have_shape_h_hdr=yes,
  1942                                 have_shape_h_hdr=no,
  1943                                 [#include <X11/Xlib.h>
  1944                                 ])
  1945                 if test x$have_shape_h_hdr = xyes; then
  1946                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1947                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1948                 fi
  1949             fi
  1950             AC_ARG_ENABLE(video-x11-vm,
  1951 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1952                             , enable_video_x11_vm=yes)
  1953             if test x$enable_video_x11_vm = xyes; then
  1954                 definitely_enable_video_x11_vm=no
  1955                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1956                                 have_vm_h_hdr=yes,
  1957                                 have_vm_h_hdr=no,
  1958                                 [#include <X11/Xlib.h>
  1959                                 ])
  1960                 if test x$have_vm_h_hdr = xyes; then
  1961                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1962                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1963                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1964                         definitely_enable_video_x11_vm=yes
  1965                     else
  1966                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1967                         if test x$have_vm_lib = xyes ; then
  1968                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1969                             definitely_enable_video_x11_vm=yes
  1970                         fi
  1971                     fi
  1972                 fi
  1973             fi
  1974             if test x$definitely_enable_video_x11_vm = xyes; then
  1975                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1976                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1977             fi
  1978         fi
  1979     fi
  1980 }
  1981 
  1982 dnl Set up the Vivante video driver if enabled
  1983 CheckVivanteVideo()
  1984 {
  1985     AC_ARG_ENABLE(video-vivante,
  1986 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1987                   , enable_video_vivante=yes)
  1988     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1989         AC_MSG_CHECKING(for Vivante VDK API)
  1990         have_vivante_vdk=no
  1991         AC_TRY_COMPILE([
  1992           #define LINUX
  1993           #define EGL_API_FB
  1994           #include <gc_vdk.h>
  1995         ],[
  1996         ],[
  1997         have_vivante_vdk=yes
  1998         ])
  1999         AC_MSG_RESULT($have_vivante_vdk)
  2000 
  2001         AC_MSG_CHECKING(for Vivante FB API)
  2002         have_vivante_egl=no
  2003         AC_TRY_COMPILE([
  2004           #define LINUX
  2005           #define EGL_API_FB
  2006           #include <EGL/eglvivante.h>
  2007         ],[
  2008         ],[
  2009         have_vivante_egl=yes
  2010         ])
  2011         AC_MSG_RESULT($have_vivante_egl)
  2012 
  2013         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  2014             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  2015             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  2016             if test x$have_vivante_vdk = xyes; then
  2017                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  2018                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  2019             fi
  2020             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  2021             SUMMARY_video="${SUMMARY_video} vivante"
  2022             have_video=yes
  2023         fi
  2024     fi
  2025 }
  2026 
  2027 dnl Set up the Haiku video driver if enabled
  2028 CheckHaikuVideo()
  2029 {
  2030     if test x$enable_video = xyes; then
  2031         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  2032         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  2033         have_video=yes
  2034         SUMMARY_video="${SUMMARY_video} haiku"
  2035     fi
  2036 }
  2037 
  2038 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  2039 CheckCOCOA()
  2040 {
  2041     AC_ARG_ENABLE(video-cocoa,
  2042 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  2043                   , enable_video_cocoa=yes)
  2044     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  2045         save_CFLAGS="$CFLAGS"
  2046         dnl Work around that we don't have Objective-C support in autoconf
  2047         CFLAGS="$CFLAGS -x objective-c"
  2048         AC_MSG_CHECKING(for Cocoa framework)
  2049         have_cocoa=no
  2050         AC_TRY_COMPILE([
  2051           #import <Cocoa/Cocoa.h>
  2052         ],[
  2053         ],[
  2054         have_cocoa=yes
  2055         ])
  2056         AC_MSG_RESULT($have_cocoa)
  2057         CFLAGS="$save_CFLAGS"
  2058         if test x$have_cocoa = xyes; then
  2059             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2060             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2061             SUMMARY_video="${SUMMARY_video} cocoa"
  2062             have_video=yes
  2063         fi
  2064     fi
  2065 }
  2066 
  2067 CheckMETAL()
  2068 {
  2069     AC_ARG_ENABLE(render-metal,
  2070 AC_HELP_STRING([--enable-render-metal], [enable the Metal render driver [[default=yes]]]),
  2071                                 , enable_render_metal=yes)
  2072     if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  2073         save_CFLAGS="$CFLAGS"
  2074         dnl Work around that we don't have Objective-C support in autoconf
  2075         CFLAGS="$CFLAGS -x objective-c"
  2076         AC_MSG_CHECKING(for Metal framework)
  2077         have_metal=no
  2078         AC_TRY_COMPILE([
  2079           #import <Cocoa/Cocoa.h>
  2080           #import <Metal/Metal.h>
  2081           #import <QuartzCore/CAMetalLayer.h>
  2082 
  2083           #if !TARGET_CPU_X86_64
  2084           #error Metal doesn't work on this configuration
  2085           #endif
  2086         ],[
  2087         ],[
  2088         have_metal=yes
  2089         ])
  2090         CFLAGS="$save_CFLAGS"
  2091         AC_MSG_RESULT($have_metal)
  2092         if test x$have_metal = xyes; then
  2093             AC_DEFINE(SDL_VIDEO_RENDER_METAL, 1, [ ])
  2094             SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
  2095             SUMMARY_video="${SUMMARY_video} metal"
  2096         else
  2097             enable_render_metal=no
  2098         fi
  2099     fi
  2100 }
  2101 
  2102 
  2103 dnl Find DirectFB
  2104 CheckDirectFB()
  2105 {
  2106     AC_ARG_ENABLE(video-directfb,
  2107 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2108                   , enable_video_directfb=no)
  2109     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2110         video_directfb=no
  2111 
  2112         DIRECTFB_REQUIRED_VERSION=1.0.0
  2113         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2114         if test x$DIRECTFBCONFIG = xno; then
  2115             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2116             if test x$PKG_CONFIG != xno; then
  2117                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2118                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2119                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2120                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2121                     video_directfb=yes
  2122                 fi
  2123             fi
  2124         else
  2125             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2126             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2127             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2128             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2129             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2130                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2131                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2132                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2133                 video_directfb=yes
  2134             fi
  2135         fi
  2136         if test x$video_directfb = xyes; then
  2137             # SuSE 11.1 installs directfb-config without directfb-devel
  2138             save_CPPFLAGS="$CPPFLAGS"
  2139             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2140             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2141             CPPFLAGS="$save_CPPFLAGS"
  2142             video_directfb=$have_directfb_hdr
  2143         fi
  2144         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2145         AC_MSG_RESULT($video_directfb)
  2146 
  2147         if test x$video_directfb = xyes; then
  2148             AC_ARG_ENABLE(directfb-shared,
  2149 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2150                               , enable_directfb_shared=yes)
  2151 
  2152             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2153             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2154             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2155 
  2156             AC_MSG_CHECKING(for directfb dynamic loading support)
  2157             directfb_shared=no
  2158             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2159             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2160 AC_MSG_WARN("directfb $directfb_lib")
  2161             if test x$have_loadso != xyes && \
  2162                test x$enable_directfb_shared = xyes; then
  2163                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2164             fi
  2165             if test x$have_loadso = xyes && \
  2166                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2167                 directfb_shared=yes
  2168                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2169                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2170                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2171             else
  2172                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2173                 SUMMARY_video="${SUMMARY_video} directfb"
  2174             fi
  2175             AC_MSG_RESULT($directfb_shared)
  2176             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2177             have_video=yes
  2178         fi
  2179     fi
  2180 }
  2181 
  2182 dnl Find KMSDRM
  2183 CheckKMSDRM()
  2184 {
  2185     AC_ARG_ENABLE(video-kmsdrm,
  2186 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2187                   , enable_video_kmsdrm=no)
  2188 
  2189     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2190         video_kmsdrm=no
  2191         libdrm_avail=no
  2192         libgbm_avail=no
  2193 
  2194         LIBDRM_REQUIRED_VERSION=2.4.46
  2195         LIBGBM_REQUIRED_VERSION=9.0.0
  2196 
  2197         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2198         if test x$PKG_CONFIG != xno; then
  2199             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2200                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2201                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2202                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2203                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2204                     libdrm_avail=yes
  2205                 fi
  2206                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2207                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2208                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2209                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2210                     libgbm_avail=yes
  2211                 fi
  2212                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2213                     video_kmsdrm=yes
  2214                 fi
  2215  
  2216                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2217                 AC_MSG_RESULT($libdrm_avail)
  2218                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2219                 AC_MSG_RESULT($libgbm_avail)
  2220 
  2221                 if test x$video_kmsdrm = xyes; then
  2222                     AC_ARG_ENABLE(kmsdrm-shared,
  2223 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2224                               , enable_kmsdrm_shared=yes)
  2225 
  2226                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2227                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2228                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2229 
  2230                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2231                     kmsdrm_shared=no
  2232                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2233                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2234                     if test x$have_loadso != xyes && \
  2235                        test x$enable_kmsdrm_shared = xyes; then
  2236                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2237                     fi
  2238                     if test x$have_loadso = xyes && \
  2239                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2240                         kmsdrm_shared=yes
  2241                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2242                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2243                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2244                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2245                     else
  2246                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2247                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2248                     fi
  2249                     AC_MSG_RESULT($kmsdrm_shared)
  2250                     have_video=yes
  2251                 fi
  2252             fi
  2253         fi
  2254     fi
  2255 }
  2256 
  2257 dnl rcg04172001 Set up the Null video driver.
  2258 CheckDummyVideo()
  2259 {
  2260     AC_ARG_ENABLE(video-dummy,
  2261 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2262                   , enable_video_dummy=yes)
  2263     if test x$enable_video_dummy = xyes; then
  2264         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2265         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2266         have_video=yes
  2267         SUMMARY_video="${SUMMARY_video} dummy"
  2268     fi
  2269 }
  2270 
  2271 dnl Set up the QNX video driver if enabled
  2272 CheckQNXVideo()
  2273 {
  2274     if test x$enable_video = xyes; then
  2275         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2276         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2277         have_video=yes
  2278         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2279         SUMMARY_video="${SUMMARY_video} qnx"
  2280     fi
  2281 }
  2282 
  2283 dnl Set up the QNX audio driver if enabled
  2284 CheckQNXAudio()
  2285 {
  2286     if test x$enable_audio = xyes; then
  2287         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2288         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2289         have_audio=yes
  2290         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2291         SUMMARY_audio="${SUMMARY_audio} qsa"
  2292     fi
  2293 }
  2294 
  2295 dnl Check to see if OpenGL support is desired
  2296 AC_ARG_ENABLE(video-opengl,
  2297 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2298               , enable_video_opengl=yes)
  2299 
  2300 dnl Find OpenGL
  2301 CheckOpenGLX11()
  2302 {
  2303     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2304         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2305         video_opengl=no
  2306         AC_TRY_COMPILE([
  2307          #include <GL/gl.h>
  2308          #include <GL/glx.h>
  2309         ],[
  2310         ],[
  2311         video_opengl=yes
  2312         ])
  2313         AC_MSG_RESULT($video_opengl)
  2314         if test x$video_opengl = xyes; then
  2315             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2316             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2317             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2318             SUMMARY_video="${SUMMARY_video} opengl"
  2319         fi
  2320     fi
  2321 }
  2322 
  2323 dnl Check to see if OpenGL ES support is desired
  2324 AC_ARG_ENABLE(video-opengles,
  2325 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2326               , enable_video_opengles=yes)
  2327 AC_ARG_ENABLE(video-opengles1,
  2328 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2329               , enable_video_opengles1=yes)
  2330 AC_ARG_ENABLE(video-opengles2,
  2331 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2332               , enable_video_opengles2=yes)
  2333 
  2334 dnl Find OpenGL ES
  2335 CheckOpenGLESX11()
  2336 {
  2337     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2338         AC_MSG_CHECKING(for EGL support)
  2339         video_opengl_egl=no
  2340         AC_TRY_COMPILE([
  2341           #define LINUX
  2342           #define EGL_API_FB
  2343           #include <EGL/egl.h>
  2344           #include <EGL/eglext.h>
  2345         ],[
  2346         ],[
  2347         video_opengl_egl=yes
  2348         ])
  2349         AC_MSG_RESULT($video_opengl_egl)
  2350         if test x$video_opengl_egl = xyes; then
  2351             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2352         fi
  2353             
  2354         if test x$enable_video_opengles1 = xyes; then
  2355             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2356             video_opengles_v1=no
  2357             AC_TRY_COMPILE([
  2358              #include <GLES/gl.h>
  2359              #include <GLES/glext.h>
  2360             ],[
  2361             ],[
  2362             video_opengles_v1=yes
  2363             ])
  2364             AC_MSG_RESULT($video_opengles_v1)
  2365             if test x$video_opengles_v1 = xyes; then
  2366                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2367                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2368                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2369             fi
  2370         fi
  2371         
  2372         if test x$enable_video_opengles2 = xyes; then
  2373             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2374             video_opengles_v2=no
  2375             AC_TRY_COMPILE([
  2376              #include <GLES2/gl2.h>
  2377              #include <GLES2/gl2ext.h>
  2378             ],[
  2379             ],[
  2380             video_opengles_v2=yes
  2381             ])
  2382             AC_MSG_RESULT($video_opengles_v2)
  2383             if test x$video_opengles_v2 = xyes; then
  2384                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2385                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2386                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2387             fi
  2388         fi
  2389     fi
  2390 }
  2391 
  2392 dnl Check for Windows OpenGL
  2393 CheckWINDOWSGL()
  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_WGL, 1, [ ])
  2398         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2399         SUMMARY_video="${SUMMARY_video} opengl"
  2400     fi
  2401 }
  2402 
  2403 dnl Check for Windows OpenGL
  2404 CheckWINDOWSGLES()
  2405 {
  2406     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2407 
  2408         AC_MSG_CHECKING(for EGL support)
  2409         video_opengl_egl=no
  2410         AC_TRY_COMPILE([
  2411          #include <EGL/egl.h>
  2412         ],[
  2413         ],[
  2414         video_opengl_egl=yes
  2415         ])
  2416         AC_MSG_RESULT($video_opengl_egl)
  2417         if test x$video_opengl_egl = xyes; then
  2418             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2419             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2420             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2421         fi
  2422        
  2423         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2424         video_opengles_v2=no
  2425         AC_TRY_COMPILE([
  2426          #include <GLES2/gl2.h>
  2427          #include <GLES2/gl2ext.h>
  2428         ],[
  2429         ],[
  2430         video_opengles_v2=yes
  2431         ])
  2432         AC_MSG_RESULT($video_opengles_v2)
  2433         if test x$video_opengles_v2 = xyes; then
  2434             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2435             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2436             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2437             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2438         fi
  2439     fi
  2440 }
  2441 
  2442 dnl Check for Haiku OpenGL
  2443 CheckHaikuGL()
  2444 {
  2445     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2446         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2447         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2448         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2449         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2450         SUMMARY_video="${SUMMARY_video} opengl"
  2451     fi
  2452 }
  2453 
  2454 dnl Check for MacOS OpenGL
  2455 CheckMacGL()
  2456 {
  2457     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2458         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2459         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2460         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2461         SUMMARY_video="${SUMMARY_video} opengl"
  2462     fi
  2463 }
  2464 
  2465 dnl Check for MacOS OpenGLES
  2466 CheckMacGLES()
  2467 {
  2468     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2469         video_opengl_egl=yes
  2470         AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2471         video_opengles_v2=yes
  2472         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2473         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2474         SUMMARY_video="${SUMMARY_video} opengl_es2"
  2475     fi
  2476 }
  2477 
  2478 CheckEmscriptenGLES()
  2479 {
  2480     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2481         AC_MSG_CHECKING(for EGL support)
  2482         video_opengl_egl=no
  2483         AC_TRY_COMPILE([
  2484          #include <EGL/egl.h>
  2485         ],[
  2486         ],[
  2487         video_opengl_egl=yes
  2488         ])
  2489         AC_MSG_RESULT($video_opengl_egl)
  2490         if test x$video_opengl_egl = xyes; then
  2491             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2492         fi
  2493 
  2494         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2495         video_opengles_v2=no
  2496         AC_TRY_COMPILE([
  2497          #include <GLES2/gl2.h>
  2498          #include <GLES2/gl2ext.h>
  2499         ],[
  2500         ],[
  2501         video_opengles_v2=yes
  2502         ])
  2503         AC_MSG_RESULT($video_opengles_v2)
  2504         if test x$video_opengles_v2 = xyes; then
  2505             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2506             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2507             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2508         fi
  2509     fi
  2510 }
  2511 
  2512 dnl Check to see if Vulkan support is desired
  2513 AC_ARG_ENABLE(video-vulkan,
  2514 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2515               , enable_video_vulkan=yes)
  2516 
  2517 dnl Find Vulkan Header
  2518 CheckVulkan()
  2519 {
  2520     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2521         case "$host" in
  2522             *-*-android*)
  2523                 AC_TRY_COMPILE([
  2524                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2525                   #error Vulkan doesn't work on this configuration
  2526                   #endif
  2527                 ],[
  2528                 ],[
  2529                 ],[
  2530                     enable_video_vulkan=no
  2531                 ])
  2532                 ;;
  2533             *-*-darwin*)
  2534                 save_CFLAGS="$CFLAGS"
  2535                 dnl Work around that we don't have Objective-C support in autoconf
  2536                 CFLAGS="$CFLAGS -x objective-c"
  2537                 AC_TRY_COMPILE([
  2538                   #include <Cocoa/Cocoa.h>
  2539                   #include <Metal/Metal.h>
  2540                   #include <QuartzCore/CAMetalLayer.h>
  2541 
  2542                   #if !TARGET_CPU_X86_64
  2543                   #error Vulkan doesn't work on this configuration
  2544                   #endif
  2545                 ],[
  2546                 ],[
  2547                 ],[
  2548                     enable_video_vulkan=no
  2549                 ])
  2550                 CFLAGS="$save_CFLAGS"
  2551                 ;;
  2552             *)
  2553                 ;;
  2554         esac
  2555         if test x$enable_video_vulkan = xno; then
  2556             # For reasons I am totally unable to see, I get an undefined macro error if
  2557             # I put this in the AC_TRY_COMPILE.
  2558             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2559         fi
  2560     fi
  2561     if test x$enable_video_vulkan = xyes; then
  2562         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2563         SUMMARY_video="${SUMMARY_video} vulkan"
  2564     fi
  2565 }
  2566 
  2567 dnl See if we can use the new unified event interface in Linux 2.4
  2568 CheckInputEvents()
  2569 {
  2570     dnl Check for Linux 2.4 unified input event interface support
  2571         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2572         use_input_events=no
  2573         AC_TRY_COMPILE([
  2574           #include <linux/input.h>
  2575         ],[
  2576           #ifndef EVIOCGNAME
  2577           #error EVIOCGNAME() ioctl not available
  2578           #endif
  2579         ],[
  2580         use_input_events=yes
  2581         ])
  2582         AC_MSG_RESULT($use_input_events)
  2583         if test x$use_input_events = xyes; then
  2584             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2585             SUMMARY_input="${SUMMARY_input} linuxev"
  2586         fi
  2587 }
  2588 
  2589 dnl See if we can use the kernel kd.h header
  2590 CheckInputKD()
  2591 {
  2592 
  2593     AC_MSG_CHECKING(for Linux kd.h)
  2594     use_input_kd=no
  2595     AC_TRY_COMPILE([
  2596       #include <linux/kd.h>
  2597       #include <linux/keyboard.h>
  2598     ],[
  2599         struct kbentry kbe;
  2600         kbe.kb_table = KG_CTRL;
  2601         ioctl(0, KDGKBENT, &kbe);
  2602     ],[
  2603     use_input_kd=yes
  2604     ])
  2605     AC_MSG_RESULT($use_input_kd)
  2606     if test x$use_input_kd = xyes; then
  2607         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2608         SUMMARY_input="${SUMMARY_input} linuxkd"
  2609     fi
  2610 }
  2611 
  2612 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2613 CheckLibUDev()
  2614 {
  2615     AC_ARG_ENABLE(libudev,
  2616 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2617                         , enable_libudev=yes)
  2618     if test x$enable_libudev = xyes; then
  2619         AC_CHECK_HEADER(libudev.h,
  2620                         have_libudev_h_hdr=yes,
  2621                         have_libudev_h_hdr=no)
  2622         if test x$have_libudev_h_hdr = xyes; then
  2623             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2624 
  2625             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2626             if test x$udev_lib != x; then
  2627                 echo "-- dynamic udev -> $udev_lib"
  2628                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2629             fi
  2630         fi
  2631     fi
  2632 }
  2633 
  2634 dnl See if the platform offers libdbus for various IPC techniques.
  2635 CheckDBus()
  2636 {
  2637     AC_ARG_ENABLE(dbus,
  2638 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2639                         , enable_dbus=yes)
  2640     if test x$enable_dbus = xyes; then
  2641         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2642         if test x$PKG_CONFIG != xno; then
  2643             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2644             save_CFLAGS="$CFLAGS"
  2645             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2646             AC_CHECK_HEADER(dbus/dbus.h,
  2647                             have_dbus_dbus_h_hdr=yes,
  2648                             have_dbus_dbus_h_hdr=no)
  2649             CFLAGS="$save_CFLAGS"
  2650             if test x$have_dbus_dbus_h_hdr = xyes; then
  2651                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2652                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2653                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2654             fi
  2655         fi
  2656     fi
  2657 }
  2658 
  2659 dnl See if the platform wanna IME support.
  2660 CheckIME()
  2661 {
  2662     AC_ARG_ENABLE(ime,
  2663 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2664                   , enable_ime=yes)
  2665     if test x$enable_ime = xyes; then
  2666         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2667             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2668     fi
  2669 }
  2670 
  2671 dnl See if the platform has libibus IME support.
  2672 CheckIBus()
  2673 {
  2674     AC_ARG_ENABLE(ibus,
  2675 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2676                   , enable_ibus=yes)
  2677     if test x$enable_ibus = xyes; then
  2678         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2679         if test x$PKG_CONFIG != xno; then
  2680             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2681             save_CFLAGS="$CFLAGS"
  2682             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2683             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2684                             have_ibus_ibus_h_hdr=yes,
  2685                             have_ibus_ibus_h_hdr=no)
  2686             AC_CHECK_HEADER(sys/inotify.h,
  2687                             have_inotify_inotify_h_hdr=yes,
  2688                             have_inotify_inotify_h_hdr=no)
  2689             CFLAGS="$save_CFLAGS"
  2690             if test x$have_ibus_ibus_h_hdr = xyes; then
  2691                 if test x$enable_ime != xyes; then
  2692                     AC_MSG_WARN([IME support is required for IBus.])
  2693                     have_ibus_ibus_h_hdr=no
  2694                 elif test x$enable_dbus != xyes; then
  2695                     AC_MSG_WARN([DBus support is required for IBus.])
  2696                     have_ibus_ibus_h_hdr=no
  2697                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2698                     AC_MSG_WARN([INotify support is required for IBus.])
  2699                     have_ibus_ibus_h_hdr=no
  2700                 else
  2701                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2702                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2703                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2704                fi
  2705             fi
  2706         fi
  2707     fi
  2708 }
  2709 
  2710 dnl See if the platform has fcitx IME support.
  2711 CheckFcitx()
  2712 {
  2713     AC_ARG_ENABLE(fcitx,
  2714 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2715                   , enable_fcitx=yes)
  2716     if test x$enable_fcitx = xyes; then
  2717         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2718         if test x$PKG_CONFIG != xno; then
  2719             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2720             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2721             AC_CHECK_HEADER(fcitx/frontend.h,
  2722                             have_fcitx_frontend_h_hdr=yes,
  2723                             have_fcitx_frontend_h_hdr=no)
  2724             CFLAGS="$save_CFLAGS"
  2725             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2726                 if test x$enable_ime != xyes; then
  2727                     AC_MSG_WARN([IME support is required for fcitx.])
  2728                     have_fcitx_frontend_h_hdr=no
  2729                 elif test x$enable_dbus != xyes; then
  2730                     AC_MSG_WARN([DBus support is required for fcitx.])
  2731                     have_fcitx_frontend_h_hdr=no
  2732                 else
  2733                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2734                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2735                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2736                fi
  2737             fi
  2738         fi
  2739     fi
  2740 }
  2741 
  2742 dnl See if we can use the Touchscreen input library
  2743 CheckTslib()
  2744 {
  2745     AC_ARG_ENABLE(input-tslib,
  2746 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2747                   , enable_input_tslib=yes)
  2748     if test x$enable_input_tslib = xyes; then
  2749         AC_MSG_CHECKING(for Touchscreen library support)
  2750         enable_input_tslib=no
  2751         AC_TRY_COMPILE([
  2752           #include "tslib.h"
  2753         ],[
  2754         ],[
  2755         enable_input_tslib=yes
  2756         ])
  2757         AC_MSG_RESULT($enable_input_tslib)
  2758         if test x$enable_input_tslib = xyes; then
  2759             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2760             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2761             SUMMARY_input="${SUMMARY_input} ts"
  2762         fi
  2763     fi
  2764 }
  2765 
  2766 dnl See what type of thread model to use on Linux and Solaris
  2767 CheckPTHREAD()
  2768 {
  2769     dnl Check for pthread support
  2770     AC_ARG_ENABLE(pthreads,
  2771 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2772                   , enable_pthreads=yes)
  2773     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2774     AC_ARG_ENABLE(pthread-sem,
  2775 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2776                   , enable_pthread_sem=yes)
  2777     case "$host" in
  2778          *-*-android*)
  2779             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2780             pthread_lib=""
  2781             ;;
  2782         *-*-linux*|*-*-uclinux*)
  2783             pthread_cflags="-D_REENTRANT"
  2784             pthread_lib="-lpthread"
  2785             ;;
  2786         *-*-bsdi*)
  2787             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2788             pthread_lib=""
  2789             ;;
  2790         *-*-darwin*)
  2791             pthread_cflags="-D_THREAD_SAFE"
  2792 # causes Carbon.p complaints?
  2793 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2794             ;;
  2795         *-*-freebsd*|*-*-dragonfly*)
  2796             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2797             pthread_lib="-pthread"
  2798             ;;
  2799         *-*-netbsd*)
  2800             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2801             pthread_lib="-lpthread"
  2802             ;;
  2803         *-*-openbsd*)
  2804             pthread_cflags="-D_REENTRANT"
  2805             pthread_lib="-pthread"
  2806             ;;
  2807         *-*-solaris2.9)
  2808             # From Solaris 9+, posix4's preferred name is rt.
  2809             pthread_cflags="-D_REENTRANT"
  2810             pthread_lib="-lpthread -lrt"
  2811             ;;
  2812         *-*-solaris2.10)
  2813             # Solaris 10+ merged pthread into libc.
  2814             pthread_cflags="-D_REENTRANT"
  2815             pthread_lib="-lrt"
  2816             ;;
  2817         *-*-solaris*)
  2818             # Solaris 11+ merged rt into libc.
  2819             pthread_cflags="-D_REENTRANT"
  2820             pthread_lib=""
  2821             ;;
  2822         *-*-sysv5*)
  2823             pthread_cflags="-D_REENTRANT -Kthread"
  2824             pthread_lib=""
  2825             ;;
  2826         *-*-aix*)
  2827             pthread_cflags="-D_REENTRANT -mthreads"
  2828             pthread_lib="-lpthread"
  2829             ;;
  2830         *-*-hpux11*)
  2831             pthread_cflags="-D_REENTRANT"
  2832             pthread_lib="-L/usr/lib -lpthread"
  2833             ;;
  2834         *-*-haiku*)
  2835             pthread_cflags="-D_REENTRANT"
  2836             pthread_lib=""
  2837             ;;
  2838         *-*-nto*)
  2839             pthread_cflags="-D_REENTRANT"
  2840             pthread_lib=""
  2841             ;;
  2842         *)
  2843             pthread_cflags="-D_REENTRANT"
  2844             pthread_lib="-lpthread"
  2845             ;;
  2846     esac
  2847     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2848         # Save the original compiler flags and libraries
  2849         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2850         # Add the pthread compiler flags and libraries
  2851         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2852         # Check to see if we have pthread support on this system
  2853         AC_MSG_CHECKING(for pthreads)
  2854         use_pthreads=no
  2855         AC_TRY_LINK([
  2856          #include <pthread.h>
  2857         ],[
  2858          pthread_attr_t type;
  2859          pthread_attr_init(&type);
  2860         ],[
  2861         use_pthreads=yes
  2862         ])
  2863         AC_MSG_RESULT($use_pthreads)
  2864         # Restore the compiler flags and libraries
  2865         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2866 
  2867         # Do futher testing if we have pthread support...
  2868         if test x$use_pthreads = xyes; then
  2869             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2870             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2871             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2872             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2873 
  2874             # Save the original compiler flags and libraries
  2875             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2876             # Add the pthread compiler flags and libraries
  2877             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2878 
  2879             # Check to see if recursive mutexes are available
  2880             AC_MSG_CHECKING(for recursive mutexes)
  2881             has_recursive_mutexes=no
  2882             if test x$has_recursive_mutexes = xno; then
  2883                 AC_TRY_LINK([
  2884                   #define _GNU_SOURCE 1
  2885                   #include <pthread.h>
  2886                 ],[
  2887                   pthread_mutexattr_t attr;
  2888                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2889                 ],[
  2890                 has_recursive_mutexes=yes
  2891                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2892                 ])
  2893             fi
  2894             if test x$has_recursive_mutexes = xno; then
  2895                 AC_TRY_LINK([
  2896                   #define _GNU_SOURCE 1
  2897                   #include <pthread.h>
  2898                 ],[
  2899                   pthread_mutexattr_t attr;
  2900                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2901                 ],[
  2902                 has_recursive_mutexes=yes
  2903                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2904                 ])
  2905             fi
  2906             AC_MSG_RESULT($has_recursive_mutexes)
  2907 
  2908             # Check to see if pthread semaphore support is missing
  2909             if test x$enable_pthread_sem = xyes; then
  2910                 AC_MSG_CHECKING(for pthread semaphores)
  2911                 have_pthread_sem=no
  2912                 AC_TRY_COMPILE([
  2913                   #include <pthread.h>
  2914                   #include <semaphore.h>
  2915                 ],[
  2916                 ],[
  2917                 have_pthread_sem=yes
  2918                 ])
  2919                 AC_MSG_RESULT($have_pthread_sem)
  2920             fi
  2921             if test x$have_pthread_sem = xyes; then
  2922                 AC_MSG_CHECKING(for sem_timedwait)
  2923                 have_sem_timedwait=no
  2924                 AC_TRY_LINK([
  2925                   #include <pthread.h>
  2926                   #include <semaphore.h>
  2927                 ],[
  2928                   sem_timedwait(NULL, NULL);
  2929                 ],[
  2930                 have_sem_timedwait=yes
  2931                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2932                 ])
  2933                 AC_MSG_RESULT($have_sem_timedwait)
  2934             fi
  2935 
  2936             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2937             if test x$have_pthread_np_h = xyes; then
  2938                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2939             fi
  2940 
  2941             # Check to see if pthread naming is available
  2942             AC_MSG_CHECKING(for pthread_setname_np)
  2943             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2944               has_pthread_setname_np=yes
  2945               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2946             ],[
  2947               has_pthread_setname_np=no
  2948             ])
  2949             AC_MSG_RESULT($has_pthread_setname_np)
  2950 
  2951             AC_MSG_CHECKING(for pthread_set_name_np)
  2952             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2953               has_pthread_set_name_np=yes
  2954               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2955             ],[
  2956               has_pthread_set_name_np=no
  2957             ])
  2958             AC_MSG_RESULT($has_pthread_set_name_np)
  2959 
  2960             # Restore the compiler flags and libraries
  2961             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2962 
  2963             # Basic thread creation functions
  2964             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2965 
  2966             # Semaphores
  2967             # We can fake these with mutexes and condition variables if necessary
  2968             if test x$have_pthread_sem = xyes; then
  2969                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2970             else
  2971                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2972             fi
  2973 
  2974             # Mutexes
  2975             # We can fake these with semaphores if necessary
  2976             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2977 
  2978             # Condition variables
  2979             # We can fake these with semaphores and mutexes if necessary
  2980             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2981 
  2982             # Thread local storage
  2983             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2984 
  2985             have_threads=yes
  2986         fi
  2987     fi
  2988 }
  2989 
  2990 dnl Determine whether the compiler can produce Windows executables
  2991 CheckWINDOWS()
  2992 {
  2993     AC_MSG_CHECKING(Windows compiler)
  2994     have_win32_gcc=no
  2995     AC_TRY_COMPILE([
  2996      #include <windows.h>
  2997     ],[
  2998     ],[
  2999     have_win32_gcc=yes
  3000     ])
  3001     AC_MSG_RESULT($have_win32_gcc)
  3002     if test x$have_win32_gcc != xyes; then
  3003        AC_MSG_ERROR([
  3004 *** Your compiler ($CC) does not produce Windows executables!
  3005        ])
  3006     fi
  3007 
  3008     AC_MSG_CHECKING(Windows CE)
  3009     have_wince=no
  3010     AC_TRY_COMPILE([
  3011 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  3012 #error This is not Windows CE
  3013 #endif
  3014     ],[
  3015     ],[
  3016     have_wince=yes
  3017        AC_MSG_ERROR([
  3018 *** Sorry, Windows CE is no longer supported.
  3019        ])
  3020     ])
  3021     AC_MSG_RESULT($have_wince)
  3022 
  3023     # This fixes Windows stack alignment with newer GCC
  3024     CheckStackBoundary
  3025 }
  3026 
  3027 dnl Find the DirectX includes and libraries
  3028 CheckDIRECTX()
  3029 {
  3030     AC_ARG_ENABLE(directx,
  3031 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  3032                   , enable_directx=yes)
  3033     if test x$enable_directx = xyes; then
  3034         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  3035         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  3036         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  3037         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  3038         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  3039         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  3040         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  3041         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  3042         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  3043         AC_TRY_COMPILE([
  3044 #include <windows.h>
  3045 #include <xinput.h>
  3046 XINPUT_GAMEPAD_EX x1;
  3047         ],[],[have_xinput_gamepadex=yes])
  3048         AC_TRY_COMPILE([
  3049 #include <windows.h>
  3050 #include <xinput.h>
  3051 XINPUT_STATE_EX s1;
  3052         ],[],[have_xinput_stateex=yes])
  3053 
  3054         if test x$have_ddraw = xyes; then
  3055             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  3056         fi
  3057         if test x$have_dinput = xyes; then
  3058             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3059         fi
  3060         if test x$have_dsound = xyes; then
  3061             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3062         fi
  3063         if test x$have_dxgi = xyes; then
  3064             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3065         fi
  3066         if test x$have_xinput = xyes; then
  3067             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3068         fi
  3069         if test x$have_xinput_gamepadex = xyes; then
  3070             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3071         fi
  3072         if test x$have_xinput_stateex = xyes; then
  3073             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3074         fi
  3075 
  3076         SUMMARY_video="${SUMMARY_video} directx"
  3077         SUMMARY_audio="${SUMMARY_audio} directx"
  3078 
  3079         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3080         # FIXME:  ...so force it off for now.
  3081         case "$host" in
  3082             *-*-cygwin*)
  3083             have_dinput=false
  3084             ;;
  3085         esac
  3086     fi
  3087 }
  3088 
  3089 dnl Check for the dlfcn.h interface for dynamically loading objects
  3090 CheckDLOPEN()
  3091 {
  3092     AC_ARG_ENABLE(sdl-dlopen,
  3093 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3094                   , enable_sdl_dlopen=yes)
  3095     if test x$enable_sdl_dlopen = xyes; then
  3096         AC_MSG_CHECKING(for dlopen)
  3097         have_dlopen=no
  3098         AC_TRY_COMPILE([
  3099          #include <dlfcn.h>
  3100         ],[
  3101          void *handle = dlopen("", RTLD_NOW);
  3102          const char *loaderror = (char *) dlerror();
  3103         ],[
  3104         have_dlopen=yes
  3105         ])
  3106         AC_MSG_RESULT($have_dlopen)
  3107 
  3108         if test x$have_dlopen = xyes; then
  3109             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3110                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3111                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3112             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3113             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3114             have_loadso=yes
  3115         fi
  3116     fi
  3117 }
  3118 
  3119 dnl Check for the usbhid(3) library on *BSD
  3120 CheckUSBHID()
  3121 {
  3122     case "$host" in
  3123         *-*-*bsd*)
  3124             if test x$enable_joystick = xyes; then
  3125                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3126                 if test x$have_libusbhid = xyes; then
  3127                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3128                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3129                     USB_LIBS="$USB_LIBS -lusbhid"
  3130                 else
  3131                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3132                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3133                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3134                 fi
  3135                     
  3136                 save_CFLAGS="$CFLAGS"
  3137                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3138 
  3139                 AC_MSG_CHECKING(for usbhid)
  3140                 have_usbhid=no
  3141                 AC_TRY_COMPILE([
  3142                   #include <sys/types.h>
  3143                   #if defined(HAVE_USB_H)
  3144                   #include <usb.h>
  3145                   #endif
  3146                   #ifdef __DragonFly__
  3147                   # include <bus/usb/usb.h>
  3148                   # include <bus/usb/usbhid.h>
  3149                   #else
  3150                   # include <dev/usb/usb.h>
  3151                   # include <dev/usb/usbhid.h>
  3152                   #endif
  3153                   #if defined(HAVE_USBHID_H)
  3154                   #include <usbhid.h>
  3155                   #elif defined(HAVE_LIBUSB_H)
  3156                   #include <libusb.h>
  3157                   #elif defined(HAVE_LIBUSBHID_H)
  3158                   #include <libusbhid.h>
  3159                   #endif
  3160                 ],[
  3161                   struct report_desc *repdesc;
  3162                   struct usb_ctl_report *repbuf;
  3163                   hid_kind_t hidkind;
  3164                 ],[
  3165                 have_usbhid=yes
  3166                 ])
  3167                 AC_MSG_RESULT($have_usbhid)
  3168 
  3169                 if test x$have_usbhid = xyes; then
  3170                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3171                     have_usbhid_ucr_data=no
  3172                     AC_TRY_COMPILE([
  3173                       #include <sys/types.h>
  3174                       #if defined(HAVE_USB_H)
  3175                       #include <usb.h>
  3176                       #endif
  3177                       #ifdef __DragonFly__
  3178                       # include <bus/usb/usb.h>
  3179                       # include <bus/usb/usbhid.h>
  3180                       #else
  3181                       # include <dev/usb/usb.h>
  3182                       # include <dev/usb/usbhid.h>
  3183                       #endif
  3184                       #if defined(HAVE_USBHID_H)
  3185                       #include <usbhid.h>
  3186                       #elif defined(HAVE_LIBUSB_H)
  3187                       #include <libusb.h>
  3188                       #elif defined(HAVE_LIBUSBHID_H)
  3189                       #include <libusbhid.h>
  3190                       #endif
  3191                     ],[
  3192                       struct usb_ctl_report buf;
  3193                       if (buf.ucr_data) { }
  3194                     ],[
  3195                     have_usbhid_ucr_data=yes
  3196                     ])
  3197                     if test x$have_usbhid_ucr_data = xyes; then
  3198                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3199                     fi
  3200                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3201                     
  3202                     AC_MSG_CHECKING(for new usbhid API)
  3203                     have_usbhid_new=no
  3204                     AC_TRY_COMPILE([
  3205                       #include <sys/types.h>
  3206                       #if defined(HAVE_USB_H)
  3207                       #include <usb.h>
  3208                       #endif
  3209                       #ifdef __DragonFly__
  3210                       #include <bus/usb/usb.h>
  3211                       #include <bus/usb/usbhid.h>
  3212                       #else
  3213                       #include <dev/usb/usb.h>
  3214                       #include <dev/usb/usbhid.h>
  3215                       #endif
  3216                       #if defined(HAVE_USBHID_H)
  3217                       #include <usbhid.h>
  3218                       #elif defined(HAVE_LIBUSB_H)
  3219                       #include <libusb.h>
  3220                       #elif defined(HAVE_LIBUSBHID_H)
  3221                       #include <libusbhid.h>
  3222                       #endif
  3223                     ],[
  3224                       report_desc_t d;
  3225                       hid_start_parse(d, 1, 1);
  3226                     ],[
  3227                     have_usbhid_new=yes
  3228                     ])
  3229                     if test x$have_usbhid_new = xyes; then
  3230                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3231                     fi
  3232                     AC_MSG_RESULT($have_usbhid_new)
  3233 
  3234                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3235                     have_machine_joystick=no
  3236                     AC_TRY_COMPILE([
  3237                       #include <machine/joystick.h>
  3238                     ],[
  3239                       struct joystick t;
  3240                     ],[
  3241                     have_machine_joystick=yes
  3242                     ])
  3243                     if test x$have_machine_joystick = xyes; then
  3244                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3245                     fi
  3246                     AC_MSG_RESULT($have_machine_joystick)
  3247 
  3248                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3249                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3250                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3251                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3252                     have_joystick=yes
  3253                 fi
  3254                 CFLAGS="$save_CFLAGS"
  3255             fi
  3256         ;;
  3257     esac
  3258 }
  3259 
  3260 dnl Check for clock_gettime()
  3261 CheckClockGettime()
  3262 {
  3263     AC_ARG_ENABLE(clock_gettime,
  3264 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3265                   , enable_clock_gettime=yes)
  3266     if test x$enable_clock_gettime = xyes; then
  3267         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3268         if test x$have_clock_gettime = xyes; then
  3269             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3270             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3271         else
  3272             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3273             if test x$have_clock_gettime = xyes; then
  3274                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3275                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3276             fi
  3277         fi
  3278     fi
  3279 }
  3280 
  3281 dnl Check for a valid linux/version.h
  3282 CheckLinuxVersion()
  3283 {
  3284     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3285     if test x$have_linux_version_h = xyes; then
  3286         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3287     fi
  3288 }
  3289 
  3290 dnl Check if we want to use RPATH
  3291 CheckRPATH()
  3292 {
  3293     AC_ARG_ENABLE(rpath,
  3294 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3295                   , enable_rpath=yes)
  3296 }
  3297 
  3298 dnl Do this on all platforms, before everything else (other things might want to override it).
  3299 CheckWarnAll
  3300 
  3301 dnl Set up the configuration based on the host platform!
  3302 case "$host" in
  3303     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3304         case "$host" in
  3305             *-*-android*)
  3306                 # Android
  3307                 ARCH=android
  3308                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3309                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3310                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3311                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3312                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3313                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3314 
  3315                 if test x$enable_video = xyes; then
  3316                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3317                     # FIXME: confdefs? Not AC_DEFINE?
  3318                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3319                     SUMMARY_video="${SUMMARY_video} android"
  3320                 fi
  3321                 ;;
  3322             *-*-linux*)         ARCH=linux ;;
  3323             *-*-uclinux*)       ARCH=linux ;;
  3324             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3325             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3326             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3327             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3328             *-*-bsdi*)          ARCH=bsdi ;;
  3329             *-*-freebsd*)       ARCH=freebsd ;;
  3330             *-*-dragonfly*)     ARCH=freebsd ;;
  3331             *-*-netbsd*)        ARCH=netbsd ;;
  3332             *-*-openbsd*)       ARCH=openbsd ;;
  3333             *-*-sysv5*)         ARCH=sysv5 ;;
  3334             *-*-solaris*)       ARCH=solaris ;;
  3335             *-*-hpux*)          ARCH=hpux ;;
  3336             *-*-aix*)           ARCH=aix ;;
  3337             *-*-minix*)         ARCH=minix ;;
  3338             *-*-nto*)           ARCH=nto
  3339                 CheckQNXVideo
  3340                 ;;
  3341         esac
  3342         CheckVisibilityHidden
  3343         CheckDeclarationAfterStatement
  3344         CheckDummyVideo
  3345         CheckDiskAudio
  3346         CheckDummyAudio
  3347         CheckDLOPEN
  3348         CheckOSS
  3349         CheckALSA
  3350         CheckPulseAudio
  3351         CheckJACK
  3352         CheckARTSC
  3353         CheckESD
  3354         CheckNAS
  3355         CheckSNDIO
  3356         CheckFusionSound
  3357         CheckLibSampleRate
  3358         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3359         CheckRPI
  3360         CheckX11
  3361         CheckDirectFB
  3362         CheckKMSDRM
  3363         CheckOpenGLX11
  3364         CheckOpenGLESX11
  3365         CheckVulkan
  3366         CheckMir
  3367         CheckWayland
  3368         CheckLibUDev
  3369         CheckDBus
  3370         CheckIME
  3371         CheckIBus
  3372         CheckFcitx
  3373         case $ARCH in
  3374           linux)
  3375               CheckInputEvents
  3376               CheckInputKD
  3377           ;;
  3378         esac
  3379         CheckTslib
  3380         CheckUSBHID
  3381         CheckPTHREAD
  3382         CheckClockGettime
  3383         CheckLinuxVersion
  3384         CheckRPATH
  3385         CheckVivanteVideo
  3386 
  3387         # Set up files for the audio library
  3388         if test x$enable_audio = xyes; then
  3389           case $ARCH in
  3390             sysv5|solaris|hpux)
  3391                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3392                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3393                 SUMMARY_audio="${SUMMARY_audio} sun"
  3394                 have_audio=yes
  3395             ;;
  3396             netbsd)  # Don't use this on OpenBSD, it's busted.
  3397                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3398                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3399                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3400                 have_audio=yes
  3401             ;;
  3402             aix)
  3403                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3404                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3405                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3406                 have_audio=yes
  3407             ;;
  3408             android)
  3409                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3410                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3411                 SUMMARY_audio="${SUMMARY_audio} android"
  3412                 have_audio=yes
  3413             ;;
  3414             nto)
  3415                 CheckQNXAudio
  3416             ;;
  3417           esac
  3418         fi
  3419         # Set up files for the joystick library
  3420         if test x$enable_joystick = xyes; then
  3421           case $ARCH in
  3422             linux)
  3423                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3424                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3425                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3426                 have_joystick=yes
  3427             ;;
  3428             android)
  3429                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3430                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3431                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3432                 have_joystick=yes
  3433             ;;
  3434           esac
  3435         fi
  3436         # Set up files for the haptic library
  3437         if test x$enable_haptic = xyes; then
  3438           case $ARCH in
  3439             linux)
  3440                 if test x$use_input_events = xyes; then
  3441                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3442                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3443                     have_haptic=yes
  3444                 fi
  3445             ;;
  3446             android)
  3447                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3448                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3449                 have_haptic=yes
  3450             ;;
  3451           esac
  3452         fi
  3453         # Set up files for the power library
  3454         if test x$enable_power = xyes; then
  3455              case $ARCH in
  3456                linux)
  3457                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3458                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3459                    have_power=yes
  3460                ;;
  3461                android)
  3462                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3463                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3464                    have_power=yes
  3465                ;;
  3466              esac
  3467         fi
  3468         # Set up files for the filesystem library
  3469         if test x$enable_filesystem = xyes; then
  3470              case $ARCH in
  3471                android)
  3472                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3473                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3474                    have_filesystem=yes
  3475                ;;
  3476                *)
  3477                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3478                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3479                    have_filesystem=yes
  3480                ;;
  3481              esac
  3482         fi
  3483         # Set up files for the timer library
  3484         if test x$enable_timers = xyes; then
  3485             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3486             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3487             have_timers=yes
  3488         fi
  3489         # Set up files for udev hotplugging support
  3490         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3491             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3492         fi
  3493         # Set up files for evdev input
  3494         if test x$use_input_events = xyes; then
  3495             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3496         fi       
  3497         # Set up other core UNIX files
  3498         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3499         ;;
  3500     *-*-cygwin* | *-*-mingw32*)
  3501         ARCH=win32
  3502         if test "$build" != "$host"; then # cross-compiling
  3503             # Default cross-compile location
  3504             ac_default_prefix=/usr/local/cross-tools/$host
  3505         else
  3506             # Look for the location of the tools and install there
  3507             if test "$BUILD_PREFIX" != ""; then
  3508                 ac_default_prefix=$BUILD_PREFIX
  3509             fi
  3510         fi
  3511         CheckDeclarationAfterStatement
  3512         CheckDummyVideo
  3513         CheckDiskAudio
  3514         CheckDummyAudio
  3515         CheckWINDOWS
  3516         CheckWINDOWSGL
  3517         CheckWINDOWSGLES
  3518         CheckVulkan
  3519         CheckDIRECTX
  3520 
  3521         # Set up the core platform files
  3522         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3523 
  3524         # Set up files for the video library
  3525         if test x$enable_video = xyes; then
  3526             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3527             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3528             have_video=yes
  3529             AC_ARG_ENABLE(render-d3d,
  3530 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3531                                 , enable_render_d3d=yes)
  3532             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3533                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3534             fi
  3535             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3536                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3537             fi
  3538         fi
  3539         # Set up files for the audio library
  3540         if test x$enable_audio = xyes; then
  3541             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3542             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3543             if test x$have_dsound = xyes; then
  3544                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3545                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3546             fi
  3547             if test x$have_wasapi = xyes; then
  3548                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3549                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3550             fi
  3551             have_audio=yes
  3552         fi
  3553         # Set up files for the joystick library
  3554         if test x$enable_joystick = xyes; then
  3555             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3556                 if test x$have_xinput = xyes; then
  3557                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3558                 fi
  3559                 if test x$have_dinput = xyes; then
  3560                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3561                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3562                 fi
  3563             else
  3564                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3565             fi
  3566             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3567             have_joystick=yes
  3568         fi
  3569         if test x$enable_haptic = xyes; then
  3570             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3571                 if test x$have_xinput = xyes; then
  3572                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3573                 fi
  3574                 if test x$have_dinput = xyes; then
  3575                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3576                 fi
  3577                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3578                 have_haptic=yes
  3579             fi
  3580         fi
  3581         if test x$enable_power = xyes; then
  3582             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3583             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3584             have_power=yes
  3585         fi
  3586         if test x$enable_filesystem = xyes; then
  3587             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3588             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3589             have_filesystem=yes
  3590         fi
  3591         # Set up files for the thread library
  3592         if test x$enable_threads = xyes; then
  3593             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3594             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3595             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3596             have_threads=yes
  3597         fi
  3598         # Set up files for the timer library
  3599         if test x$enable_timers = xyes; then
  3600             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3601             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3602             have_timers=yes
  3603         fi
  3604         # Set up files for the shared object loading library
  3605         if test x$enable_loadso = xyes; then
  3606             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3607             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3608             have_loadso=yes
  3609         fi
  3610         # Set up the system libraries we need
  3611         if test -f /lib/w32api/libuuid.a; then
  3612             LIBUUID=/lib/w32api/libuuid.a
  3613         else
  3614             LIBUUID=-luuid
  3615         fi
  3616         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3617         # The Windows platform requires special setup
  3618         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3619         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3620         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3621         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3622 
  3623         # Check to see if this is a mingw or cygwin build
  3624         have_mingw32=
  3625         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3626         if test x$have_mingw32 = xyes; then
  3627             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3628         else
  3629             SDL_LIBS="-lcygwin $SDL_LIBS"
  3630         fi
  3631         ;;
  3632 
  3633     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3634     *-*-beos*)
  3635         AC_MSG_ERROR([
  3636 *** BeOS support has been removed as of SDL 2.0.2.
  3637         ])
  3638         ;;
  3639 
  3640     *-*-haiku*)
  3641         ARCH=haiku
  3642         ac_default_prefix=/boot/system
  3643         CheckDummyVideo
  3644         CheckDiskAudio
  3645         CheckDummyAudio
  3646         CheckDLOPEN
  3647         CheckHaikuVideo
  3648         CheckHaikuGL
  3649         CheckPTHREAD
  3650 
  3651         # Set up files for the audio library
  3652         if test x$enable_audio = xyes; then
  3653             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3654             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3655             SUMMARY_audio="${SUMMARY_audio} haiku"
  3656             have_audio=yes
  3657         fi
  3658         # Set up files for the joystick library
  3659         if test x$enable_joystick = xyes; then
  3660             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3661             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3662             have_joystick=yes
  3663         fi
  3664         # Set up files for the timer library
  3665         if test x$enable_timers = xyes; then
  3666             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3667             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3668             have_timers=yes
  3669         fi
  3670         # Set up files for the system power library
  3671         if test x$enable_power = xyes; then
  3672             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3673             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3674             have_power=yes
  3675         fi
  3676         # Set up files for the system filesystem library
  3677         if test x$enable_filesystem = xyes; then
  3678             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3679             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3680             have_filesystem=yes
  3681         fi
  3682         # The Haiku platform requires special setup.
  3683         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3684         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3685         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3686         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3687         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3688         ;;
  3689     arm*-apple-darwin*|*-ios-*)
  3690         ARCH=ios
  3691 
  3692         CheckVisibilityHidden
  3693         CheckDeclarationAfterStatement
  3694         CheckDummyVideo
  3695         CheckDiskAudio
  3696         CheckDummyAudio
  3697         CheckDLOPEN
  3698         CheckMETAL
  3699         CheckVulkan
  3700         CheckPTHREAD
  3701 
  3702         # Set up files for the audio library
  3703         if test x$enable_audio = xyes; then
  3704             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3705             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3706             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3707             have_audio=yes
  3708         fi
  3709         # Set up files for the joystick library
  3710         if test x$enable_joystick = xyes; then
  3711             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3712             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3713             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3714             have_joystick=yes
  3715         fi
  3716         # Set up files for the haptic library
  3717         #if test x$enable_haptic = xyes; then
  3718         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3719         #    have_haptic=yes
  3720         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3721         #fi
  3722         # Set up files for the power library
  3723         if test x$enable_power = xyes; then
  3724             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3725             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3726             have_power=yes
  3727         fi
  3728         # Set up files for the filesystem library
  3729         if test x$enable_filesystem = xyes; then
  3730             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3731             have_filesystem=yes
  3732         fi
  3733         # Set up additional files for the file library
  3734         if test x$enable_file = xyes; then
  3735             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3736             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3737         fi
  3738         # Set up files for the timer library
  3739         if test x$enable_timers = xyes; then
  3740             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3741             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3742             have_timers=yes
  3743         fi
  3744         # Set up other core UNIX files
  3745         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3746         # The iOS platform requires special setup.
  3747         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3748         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3749         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3750         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3751         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3752         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3753         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3754         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3755         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3756         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3757         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3758         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3759         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3760         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3761         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3762         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3763         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3764 
  3765         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3766             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Metal"
  3767         fi
  3768         ;;
  3769     *-*-darwin* )
  3770         # This could be either full "Mac OS X", or plain "Darwin" which is
  3771         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3772         # Next line is broken, and a few files below require Mac OS X (full)
  3773         ARCH=macosx
  3774 
  3775         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3776         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3777         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3778 
  3779         CheckVisibilityHidden
  3780         CheckDeclarationAfterStatement
  3781         CheckDummyVideo
  3782         CheckDiskAudio
  3783         CheckDummyAudio
  3784         CheckDLOPEN
  3785         CheckCOCOA
  3786         CheckMETAL
  3787         CheckX11
  3788         CheckMacGL
  3789         CheckMacGLES
  3790         CheckOpenGLX11
  3791         CheckVulkan
  3792         CheckPTHREAD
  3793 
  3794         # Set up files for the audio library
  3795         if test x$enable_audio = xyes; then
  3796             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3797             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3798             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3799             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3800             have_audio=yes
  3801         fi
  3802         # Set up files for the joystick library
  3803         if test x$enable_joystick = xyes; then
  3804             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3805             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3806             have_joystick=yes
  3807         fi
  3808         # Set up files for the haptic library
  3809         if test x$enable_haptic = xyes; then
  3810             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3811             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3812             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3813             have_haptic=yes
  3814         fi
  3815         # Set up files for the power library
  3816         if test x$enable_power = xyes; then
  3817             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3818             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3819             have_power=yes
  3820         fi
  3821         # Set up files for the filesystem library
  3822         if test x$enable_filesystem = xyes; then
  3823             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3824             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3825             have_filesystem=yes
  3826         fi
  3827         # Set up files for the timer library
  3828         if test x$enable_timers = xyes; then
  3829             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3830             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3831             have_timers=yes
  3832         fi
  3833         # Set up additional files for the file library
  3834         if test x$enable_file = xyes; then
  3835             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3836         fi
  3837         # Set up other core UNIX files
  3838         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3839         # The Mac OS X platform requires special setup.
  3840         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3841         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3842         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3843         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3844         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3845 
  3846         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3847             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
  3848         fi
  3849         ;;
  3850     *-nacl|*-pnacl)
  3851         ARCH=nacl
  3852         CheckNativeClient
  3853         CheckDummyAudio
  3854         CheckDummyVideo
  3855         CheckInputEvents
  3856         CheckPTHREAD
  3857         
  3858         # Set up files for the timer library
  3859         if test x$enable_timers = xyes; then
  3860             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3861             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3862             have_timers=yes
  3863         fi
  3864         
  3865         if test x$enable_filesystem = xyes; then
  3866             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3867             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3868             have_filesystem=yes
  3869         fi
  3870         ;;
  3871     *-*-emscripten* )
  3872         if test x$enable_video = xyes; then
  3873             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3874             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3875             have_video=yes
  3876             SUMMARY_video="${SUMMARY_video} emscripten"
  3877         fi
  3878 
  3879         if test x$enable_audio = xyes; then
  3880             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3881             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3882             have_audio=yes
  3883             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3884         fi
  3885 
  3886         CheckVisibilityHidden
  3887         CheckDeclarationAfterStatement
  3888         CheckDummyVideo
  3889         CheckDiskAudio
  3890         CheckDummyAudio
  3891         CheckDLOPEN
  3892         CheckClockGettime
  3893         CheckEmscriptenGLES
  3894 
  3895          # Set up files for the power library
  3896         if test x$enable_power = xyes; then
  3897             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3898             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3899             have_power=yes
  3900         fi
  3901         
  3902         # Set up files for the power library
  3903         if test x$enable_joystick = xyes; then
  3904             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3905             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3906             have_joystick=yes
  3907         fi
  3908 
  3909         # Set up files for the filesystem library
  3910         if test x$enable_filesystem = xyes; then
  3911             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3912             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3913             have_filesystem=yes
  3914         fi
  3915         # Set up files for the timer library
  3916         if test x$enable_timers = xyes; then
  3917             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3918             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3919             have_timers=yes
  3920         fi
  3921         ;;
  3922     *)
  3923         AC_MSG_ERROR([
  3924 *** Unsupported host:  Please add to configure.in
  3925         ])
  3926         ;;
  3927 esac
  3928 
  3929 # Verify that we have all the platform specific files we need
  3930 
  3931 if test x$have_joystick != xyes; then
  3932     if test x$enable_joystick = xyes; then
  3933         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3934     fi
  3935     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3936 fi
  3937 if test x$have_haptic != xyes; then
  3938     if test x$enable_haptic = xyes; then
  3939         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3940     fi
  3941     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3942 fi
  3943 if test x$have_threads != xyes; then
  3944     if test x$enable_threads = xyes; then
  3945         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3946     fi
  3947     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3948 fi
  3949 if test x$have_timers != xyes; then
  3950     if test x$enable_timers = xyes; then
  3951         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3952     fi
  3953     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3954 fi
  3955 if test x$have_filesystem != xyes; then
  3956     if test x$enable_filesystem = xyes; then
  3957         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3958     fi
  3959     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3960 fi
  3961 if test x$have_loadso != xyes; then
  3962     if test x$enable_loadso = xyes; then
  3963         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3964     fi
  3965     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3966 fi
  3967 if test x$SDLMAIN_SOURCES = x; then
  3968     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3969 fi
  3970 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3971 
  3972 if test x$video_wayland = xyes; then
  3973     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3974     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3975     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3976         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3977     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3978         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3979     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3980     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3981 
  3982     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3983 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3984 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3985 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3986 
  3987     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3988 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3989 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3990 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3991 
  3992     WAYLAND_CORE_PROTOCOL_OBJECT="
  3993 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3994 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3995 
  3996     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3997         do echo ; echo \$p | sed\
  3998         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3999 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  4000 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  4001 
  4002     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  4003         do echo ; echo \$p | sed\
  4004         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  4005 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  4006 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  4007 
  4008     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  4009         do echo ; echo \$p | sed\
  4010         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  4011 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  4012 
  4013     WAYLAND_PROTOCOLS_DEPENDS="
  4014 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  4015 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  4016 $WAYLAND_CORE_PROTOCOL_OBJECT
  4017 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  4018 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  4019 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  4020 "
  4021 fi
  4022 
  4023 OBJECTS=`echo $SOURCES`
  4024 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  4025 for EXT in asm cc m c S; do
  4026     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  4027     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  4028 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  4029 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4030 done
  4031 
  4032 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4033 
  4034 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  4035 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  4036 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  4037 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  4038 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  4039 	\\$(WINDRES) \\$< \\$@,g"`
  4040 
  4041 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  4042 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  4043 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4044 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4045 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4046 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4047 
  4048 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  4049 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  4050 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4051 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4052 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4053 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4054 
  4055 # Set runtime shared library paths as needed
  4056 
  4057 if test "x$enable_rpath" = "xyes"; then
  4058   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  4059     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  4060 
  4061     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  4062     have_enable_new_dtags=no
  4063     save_LDFLAGS="$LDFLAGS"
  4064     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  4065     AC_TRY_LINK([
  4066     ],[
  4067     ],[
  4068     have_enable_new_dtags=yes
  4069     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4070     ])
  4071     LDFLAGS="$save_LDFLAGS"
  4072     AC_MSG_RESULT($have_enable_new_dtags)
  4073   fi
  4074   if test $ARCH = solaris; then
  4075     SDL_RLD_FLAGS="-R\${libdir}"
  4076   fi
  4077 else
  4078   SDL_RLD_FLAGS=""
  4079 fi
  4080 
  4081 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4082 
  4083 dnl Expand the cflags and libraries needed by apps using SDL
  4084 AC_SUBST(SDL_CFLAGS)
  4085 AC_SUBST(SDL_LIBS)
  4086 AC_SUBST(SDL_STATIC_LIBS)
  4087 AC_SUBST(SDL_RLD_FLAGS)
  4088 if test x$enable_shared = xyes; then
  4089     ENABLE_SHARED_TRUE=
  4090     ENABLE_SHARED_FALSE="#"
  4091 else
  4092     ENABLE_SHARED_TRUE="#"
  4093     ENABLE_SHARED_FALSE=
  4094 fi
  4095 if test x$enable_static = xyes; then
  4096     ENABLE_STATIC_TRUE=
  4097     ENABLE_STATIC_FALSE="#"
  4098 else
  4099     ENABLE_STATIC_TRUE="#"
  4100     ENABLE_STATIC_FALSE=
  4101 fi
  4102 AC_SUBST(ENABLE_SHARED_TRUE)
  4103 AC_SUBST(ENABLE_SHARED_FALSE)
  4104 AC_SUBST(ENABLE_STATIC_TRUE)
  4105 AC_SUBST(ENABLE_STATIC_FALSE)
  4106 
  4107 dnl Expand the sources and objects needed to build the library
  4108 AC_SUBST(ac_aux_dir)
  4109 AC_SUBST(INCLUDE)
  4110 AC_SUBST(OBJECTS)
  4111 AC_SUBST(GEN_HEADERS)
  4112 AC_SUBST(GEN_OBJECTS)
  4113 AC_SUBST(VERSION_OBJECTS)
  4114 AC_SUBST(SDLMAIN_OBJECTS)
  4115 AC_SUBST(SDLTEST_OBJECTS)
  4116 AC_SUBST(BUILD_CFLAGS)
  4117 AC_SUBST(EXTRA_CFLAGS)
  4118 AC_SUBST(BUILD_LDFLAGS)
  4119 AC_SUBST(EXTRA_LDFLAGS)
  4120 AC_SUBST(WINDRES)
  4121 AC_SUBST(WAYLAND_SCANNER)
  4122 
  4123 cat >Makefile.rules <<__EOF__
  4124 
  4125 # Build rules for objects
  4126 -include \$(OBJECTS:.lo=.d)
  4127 
  4128 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4129 $srcdir/src/SDL.c: update-revision
  4130 $DEPENDS
  4131 $VERSION_DEPENDS
  4132 $SDLMAIN_DEPENDS
  4133 $SDLTEST_DEPENDS
  4134 $WAYLAND_PROTOCOLS_DEPENDS
  4135 __EOF__
  4136 
  4137 AC_CONFIG_FILES([
  4138     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4139 ])
  4140 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4141 
  4142 SUMMARY="SDL2 Configure Summary:\n"
  4143 if test x$enable_shared = xyes; then
  4144     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4145 fi
  4146 if test x$enable_static = xyes; then
  4147     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4148 fi
  4149 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4150 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4151 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4152 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4153 if test x$have_x = xyes; then
  4154     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4155 fi
  4156 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4157 if test x$have_samplerate_h_hdr = xyes; then
  4158     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4159 else
  4160     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4161 fi
  4162 if test x$have_libudev_h_hdr = xyes; then
  4163     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4164 else
  4165     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4166 fi
  4167 if test x$have_dbus_dbus_h_hdr = xyes; then
  4168     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4169 else
  4170     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4171 fi
  4172 if test x$enable_ime = xyes; then
  4173     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4174 else
  4175     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4176 fi
  4177 if test x$have_ibus_ibus_h_hdr = xyes; then
  4178     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4179 else
  4180     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4181 fi
  4182 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4183     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4184 else
  4185     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4186 fi
  4187 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4188 
  4189 AC_OUTPUT