configure.in
author Sam Lantinga <slouken@libsdl.org>
Tue, 21 Aug 2018 12:11:34 -0700
changeset 12130 24142c5073a4
parent 12088 399cc39583cc
child 12131 9601849b3079
permissions -rw-r--r--
First pass on the new SDL sensor API
     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"
   127 if test "x$BASE_LDFLAGS" != x; then
   128     SDL_LIBS="$SDL_LIBS $BASE_LDFLAGS"
   129 fi
   130 if test "x$EXTRA_CFLAGS" != x; then
   131     CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   132     CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   133 fi
   134 if test "x$EXTRA_LDFLAGS" != x; then
   135     LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   136 fi
   137 
   138 dnl set this to use on systems that use lib64 instead of lib
   139 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   140 
   141 dnl Function to find a library in the compiler search path
   142 find_lib()
   143 {
   144     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   145     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   146     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   147     if test "$cross_compiling" = yes; then
   148         host_lib_path=""
   149     else
   150         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   151     fi
   152     for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
   153         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   154         if test x$lib != x; then
   155             echo $lib
   156             return
   157         fi
   158     done
   159 }
   160 
   161 dnl Check for compiler characteristics
   162 AC_C_CONST
   163 AC_C_INLINE
   164 AC_C_VOLATILE
   165 
   166 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   167 AC_ARG_ENABLE(assertions,
   168 AC_HELP_STRING([--enable-assertions],
   169                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   170               , enable_assertions=auto)
   171 case "$enable_assertions" in
   172     auto) # Use optimization settings to determine assertion level
   173         ;;
   174     disabled)
   175         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   176         ;;
   177     release)
   178         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   179         ;;
   180     enabled)
   181         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   182         ;;
   183     paranoid)
   184         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   185         ;;
   186     *)
   187         AC_MSG_ERROR([*** unknown assertion level. stop.])
   188         ;;
   189 esac
   190 
   191 dnl See whether we can use gcc style dependency tracking
   192 AC_ARG_ENABLE(dependency-tracking,
   193 AC_HELP_STRING([--enable-dependency-tracking],
   194                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   195               , enable_dependency_tracking=yes)
   196 if test x$enable_dependency_tracking = xyes; then
   197     have_gcc_mmd_mt=no
   198     AC_MSG_CHECKING(for GCC -MMD -MT option)
   199     AC_TRY_COMPILE([
   200     #if !defined(__GNUC__) || __GNUC__ < 3
   201     #error Dependency tracking requires GCC 3.0 or newer
   202     #endif
   203     ],[
   204     ],[
   205     have_gcc_mmd_mt=yes
   206     ])
   207     AC_MSG_RESULT($have_gcc_mmd_mt)
   208 
   209     if test x$have_gcc_mmd_mt = xyes; then
   210         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   211     fi
   212 fi
   213 
   214 AC_MSG_CHECKING(for linker option --no-undefined)
   215 have_no_undefined=no
   216 case "$host" in
   217     dnl Skip this on platforms where it is just simply busted.
   218     *-*-openbsd*)
   219         ;;
   220 
   221     *)
   222         save_LDFLAGS="$LDFLAGS"
   223         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   224         AC_TRY_LINK([
   225         ],[
   226         ],[
   227         have_no_undefined=yes
   228         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   229         ])
   230         LDFLAGS="$save_LDFLAGS"
   231         ;;
   232 esac
   233 AC_MSG_RESULT($have_no_undefined)
   234 
   235 dnl See whether we are allowed to use the system C library
   236 AC_ARG_ENABLE(libc,
   237 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   238               , enable_libc=yes)
   239 if test x$enable_libc = xyes; then
   240     AC_DEFINE(HAVE_LIBC, 1, [ ])
   241 
   242     dnl Check for C library headers
   243     AC_HEADER_STDC
   244     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)
   245 
   246     dnl Check for typedefs, structures, etc.
   247     AC_TYPE_SIZE_T
   248 
   249     dnl Check for defines
   250     AC_CHECK_DEFINE(M_PI, math.h)
   251 
   252     dnl Checks for library functions.
   253     case "$host" in
   254     *-*-cygwin* | *-*-mingw32*)
   255         ;;
   256     *)
   257         AC_FUNC_ALLOCA
   258         ;;
   259     esac
   260 
   261     AC_FUNC_MEMCMP
   262     if test x$ac_cv_func_memcmp_working = xyes; then
   263         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   264     fi
   265     AC_FUNC_STRTOD
   266     if test x$ac_cv_func_strtod = xyes; then
   267         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   268     fi
   269     AC_CHECK_FUNC(mprotect,
   270         AC_TRY_COMPILE([
   271           #include <sys/types.h>
   272           #include <sys/mman.h>
   273         ],[
   274         ],[
   275         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   276         ]),
   277     )
   278     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   279 
   280     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   281     AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf exp expf fabs fabsf floor floorf fmod fmodf log logf log10 log10f pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   282 
   283     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   284     AC_CHECK_FUNCS(iconv)
   285 
   286     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   287 
   288     dnl Check for additional non-standard headers
   289     AC_CHECK_HEADERS(libunwind.h)
   290 fi
   291 
   292 dnl AC_CHECK_SIZEOF(void*)
   293 
   294 dnl See whether we can use gcc atomic operations on this architecture
   295 AC_ARG_ENABLE(gcc-atomics,
   296 AC_HELP_STRING([--enable-gcc-atomics],
   297                [Use gcc builtin atomics [[default=yes]]]),
   298               , enable_gcc_atomics=yes)
   299 if test x$enable_gcc_atomics = xyes; then
   300     have_gcc_atomics=no
   301     AC_MSG_CHECKING(for GCC builtin atomic operations)
   302     AC_TRY_LINK([
   303     ],[
   304     int a;
   305     void *x, *y, *z;
   306     __sync_lock_test_and_set(&a, 4);
   307     __sync_lock_test_and_set(&x, y);
   308     __sync_fetch_and_add(&a, 1);
   309     __sync_bool_compare_and_swap(&a, 5, 10);
   310     __sync_bool_compare_and_swap(&x, y, z);
   311     ],[
   312     have_gcc_atomics=yes
   313     ])
   314     AC_MSG_RESULT($have_gcc_atomics)
   315 
   316     if test x$have_gcc_atomics = xyes; then
   317         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   318     else
   319         # See if we have the minimum operation needed for GCC atomics
   320         AC_TRY_LINK([
   321         ],[
   322         int a;
   323         __sync_lock_test_and_set(&a, 1);
   324         __sync_lock_release(&a);
   325         ],[
   326         have_gcc_sync_lock_test_and_set=yes
   327         ])
   328         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   329             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   330         fi
   331     fi
   332 fi
   333 
   334 # Standard C sources
   335 SOURCES="$SOURCES $srcdir/src/*.c"
   336 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   337 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   338 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   339 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   340 SOURCES="$SOURCES $srcdir/src/events/*.c"
   341 SOURCES="$SOURCES $srcdir/src/file/*.c"
   342 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   343 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   344 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   345 SOURCES="$SOURCES $srcdir/src/power/*.c"
   346 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   347 SOURCES="$SOURCES $srcdir/src/render/*.c"
   348 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   349 SOURCES="$SOURCES $srcdir/src/sensor/*.c"
   350 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   351 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   352 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   353 SOURCES="$SOURCES $srcdir/src/video/*.c"
   354 SOURCES="$SOURCES $srcdir/src/video/yuv2rgb/*.c"
   355 
   356 dnl Enable/disable various subsystems of the SDL library
   357 
   358 AC_ARG_ENABLE(atomic,
   359 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   360               , enable_atomic=yes)
   361 if test x$enable_atomic != xyes; then
   362     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   363 else
   364     SUMMARY_modules="${SUMMARY_modules} atomic"
   365 fi
   366 AC_ARG_ENABLE(audio,
   367 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   368               , enable_audio=yes)
   369 if test x$enable_audio != xyes; then
   370     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   371 else
   372     SUMMARY_modules="${SUMMARY_modules} audio"
   373 fi
   374 AC_ARG_ENABLE(video,
   375 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   376               , enable_video=yes)
   377 if test x$enable_video != xyes; then
   378     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   379 else
   380     SUMMARY_modules="${SUMMARY_modules} video"
   381 fi
   382 AC_ARG_ENABLE(render,
   383 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   384               , enable_render=yes)
   385 if test x$enable_render != xyes; then
   386     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   387 else
   388     SUMMARY_modules="${SUMMARY_modules} render"
   389 fi
   390 AC_ARG_ENABLE(events,
   391 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   392               , enable_events=yes)
   393 if test x$enable_events != xyes; then
   394     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   395 else
   396     SUMMARY_modules="${SUMMARY_modules} events"
   397 fi
   398 AC_ARG_ENABLE(joystick,
   399 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   400               , enable_joystick=yes)
   401 if test x$enable_joystick != xyes; then
   402     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   403 else
   404     SUMMARY_modules="${SUMMARY_modules} joystick"
   405 fi
   406 AC_ARG_ENABLE(haptic,
   407 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   408               , enable_haptic=yes)
   409 if test x$enable_haptic != xyes; then
   410     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   411 else
   412     SUMMARY_modules="${SUMMARY_modules} haptic"
   413 fi
   414 AC_ARG_ENABLE(sensor,
   415 AC_HELP_STRING([--enable-sensor], [Enable the sensor subsystem [[default=yes]]]),
   416               , enable_sensor=yes)
   417 if test x$enable_sensor != xyes; then
   418     AC_DEFINE(SDL_SENSOR_DISABLED, 1, [ ])
   419 else
   420     SUMMARY_modules="${SUMMARY_modules} sensor"
   421 fi
   422 AC_ARG_ENABLE(power,
   423 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   424               , enable_power=yes)
   425 if test x$enable_power != xyes; then
   426     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   427 else
   428     SUMMARY_modules="${SUMMARY_modules} power"
   429 fi
   430 AC_ARG_ENABLE(filesystem,
   431 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   432               , enable_filesystem=yes)
   433 if test x$enable_filesystem != xyes; then
   434     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   435 else
   436     SUMMARY_modules="${SUMMARY_modules} filesystem"
   437 fi
   438 AC_ARG_ENABLE(threads,
   439 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   440               , enable_threads=yes)
   441 if test x$enable_threads != xyes; then
   442     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   443 else
   444     SUMMARY_modules="${SUMMARY_modules} threads"
   445 fi
   446 AC_ARG_ENABLE(timers,
   447 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   448               , enable_timers=yes)
   449 if test x$enable_timers != xyes; then
   450     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   451 else
   452     SUMMARY_modules="${SUMMARY_modules} timers"
   453 fi
   454 AC_ARG_ENABLE(file,
   455 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   456               , enable_file=yes)
   457 if test x$enable_file != xyes; then
   458     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   459 else
   460     SUMMARY_modules="${SUMMARY_modules} file"
   461 fi
   462 AC_ARG_ENABLE(loadso,
   463 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   464               , enable_loadso=yes)
   465 if test x$enable_loadso != xyes; then
   466     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   467 else
   468     SUMMARY_modules="${SUMMARY_modules} loadso"
   469 fi
   470 AC_ARG_ENABLE(cpuinfo,
   471 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   472               , enable_cpuinfo=yes)
   473 if test x$enable_cpuinfo != xyes; then
   474     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   475 else
   476     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   477 fi
   478 AC_ARG_ENABLE(assembly,
   479 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   480               , enable_assembly=yes)
   481 if test x$enable_assembly = xyes; then
   482     SUMMARY_modules="${SUMMARY_modules} assembly"
   483 
   484     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   485 
   486     # Make sure that we don't generate floating point code that would
   487     # cause illegal instruction exceptions on older processors
   488     case "$host" in
   489         *-*-darwin*)
   490             # Don't need to worry about Apple hardware, it's all SSE capable
   491             default_ssemath=yes
   492             ;;
   493         *64-*-*)
   494             # x86 64-bit architectures all have SSE instructions
   495             default_ssemath=yes
   496             ;;
   497         *)
   498             default_ssemath=no
   499             ;;
   500     esac
   501     AC_ARG_ENABLE(ssemath,
   502 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=maybe]]]),
   503                   , enable_ssemath=$default_ssemath)
   504     if test x$enable_ssemath = xno; then
   505         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes -o x$have_gcc_sse3 = xyes; then
   506             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   507         fi
   508     fi
   509 
   510     dnl Check for various instruction support
   511     AC_ARG_ENABLE(mmx,
   512 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   513                   , enable_mmx=yes)
   514     if test x$enable_mmx = xyes; then
   515         save_CFLAGS="$CFLAGS"
   516         have_gcc_mmx=no
   517         AC_MSG_CHECKING(for GCC -mmmx option)
   518         mmx_CFLAGS="-mmmx"
   519         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   520 
   521         AC_TRY_COMPILE([
   522         #ifdef __MINGW32__
   523         #include <_mingw.h>
   524         #ifdef __MINGW64_VERSION_MAJOR
   525         #include <intrin.h>
   526         #else
   527         #include <mmintrin.h>
   528         #endif
   529         #else
   530         #include <mmintrin.h>
   531         #endif
   532         #ifndef __MMX__
   533         #error Assembler CPP flag not enabled
   534         #endif
   535         ],[
   536         ],[
   537         have_gcc_mmx=yes
   538         ])
   539         AC_MSG_RESULT($have_gcc_mmx)
   540         CFLAGS="$save_CFLAGS"
   541 
   542         if test x$have_gcc_mmx = xyes; then
   543             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   544             SUMMARY_math="${SUMMARY_math} mmx"
   545         fi
   546     fi
   547 
   548     AC_ARG_ENABLE(3dnow,
   549 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   550                   , enable_3dnow=yes)
   551     if test x$enable_3dnow = xyes; then
   552         save_CFLAGS="$CFLAGS"
   553         have_gcc_3dnow=no
   554         AC_MSG_CHECKING(for GCC -m3dnow option)
   555         amd3dnow_CFLAGS="-m3dnow"
   556         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   557 
   558         AC_TRY_LINK([
   559         #include <mm3dnow.h>
   560         #ifndef __3dNOW__
   561         #error Assembler CPP flag not enabled
   562         #endif
   563         ],[
   564         void *p = 0;
   565         _m_prefetch(p);
   566         ],[
   567         have_gcc_3dnow=yes
   568         ])
   569         AC_MSG_RESULT($have_gcc_3dnow)
   570         CFLAGS="$save_CFLAGS"
   571 
   572         if test x$have_gcc_3dnow = xyes; then
   573             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   574             SUMMARY_math="${SUMMARY_math} 3dnow"
   575         fi
   576     fi
   577 
   578     AC_ARG_ENABLE(sse,
   579 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   580                   , enable_sse=yes)
   581     if test x$enable_sse = xyes; then
   582         save_CFLAGS="$CFLAGS"
   583         have_gcc_sse=no
   584         AC_MSG_CHECKING(for GCC -msse option)
   585         sse_CFLAGS="-msse"
   586         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   587 
   588         AC_TRY_COMPILE([
   589         #ifdef __MINGW32__
   590         #include <_mingw.h>
   591         #ifdef __MINGW64_VERSION_MAJOR
   592         #include <intrin.h>
   593         #else
   594         #include <xmmintrin.h>
   595         #endif
   596         #else
   597         #include <xmmintrin.h>
   598         #endif
   599         #ifndef __SSE__
   600         #error Assembler CPP flag not enabled
   601         #endif
   602         ],[
   603         ],[
   604         have_gcc_sse=yes
   605         ])
   606         AC_MSG_RESULT($have_gcc_sse)
   607         CFLAGS="$save_CFLAGS"
   608 
   609         if test x$have_gcc_sse = xyes; then
   610             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   611             SUMMARY_math="${SUMMARY_math} sse"
   612         fi
   613     fi
   614 
   615     AC_ARG_ENABLE(sse2,
   616 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=maybe]]]),
   617                   , enable_sse2=$default_ssemath)
   618     if test x$enable_sse2 = xyes; then
   619         save_CFLAGS="$CFLAGS"
   620         have_gcc_sse2=no
   621         AC_MSG_CHECKING(for GCC -msse2 option)
   622         sse2_CFLAGS="-msse2"
   623         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   624 
   625         AC_TRY_COMPILE([
   626         #ifdef __MINGW32__
   627         #include <_mingw.h>
   628         #ifdef __MINGW64_VERSION_MAJOR
   629         #include <intrin.h>
   630         #else
   631         #include <emmintrin.h>
   632         #endif
   633         #else
   634         #include <emmintrin.h>
   635         #endif
   636         #ifndef __SSE2__
   637         #error Assembler CPP flag not enabled
   638         #endif
   639         ],[
   640         ],[
   641         have_gcc_sse2=yes
   642         ])
   643         AC_MSG_RESULT($have_gcc_sse2)
   644         CFLAGS="$save_CFLAGS"
   645 
   646         if test x$have_gcc_sse2 = xyes; then
   647             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   648             SUMMARY_math="${SUMMARY_math} sse2"
   649         fi
   650     fi
   651 
   652     AC_ARG_ENABLE(sse3,
   653 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   654                   , enable_sse3=$default_ssemath)
   655     if test x$enable_sse3 = xyes; then
   656         save_CFLAGS="$CFLAGS"
   657         have_gcc_sse3=no
   658         AC_MSG_CHECKING(for GCC -msse3 option)
   659         sse3_CFLAGS="-msse3"
   660         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   661 
   662         AC_TRY_COMPILE([
   663         #ifdef __MINGW32__
   664         #include <_mingw.h>
   665         #ifdef __MINGW64_VERSION_MAJOR
   666         #include <intrin.h>
   667         #else
   668         #include <pmmintrin.h>
   669         #endif
   670         #else
   671         #include <pmmintrin.h>
   672         #endif
   673         #ifndef __SSE2__
   674         #error Assembler CPP flag not enabled
   675         #endif
   676         ],[
   677         ],[
   678         have_gcc_sse3=yes
   679         ])
   680         AC_MSG_RESULT($have_gcc_sse3)
   681         CFLAGS="$save_CFLAGS"
   682 
   683         if test x$have_gcc_sse3 = xyes; then
   684             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   685             SUMMARY_math="${SUMMARY_math} sse3"
   686         fi
   687     fi
   688 
   689     AC_CHECK_HEADER(immintrin.h,
   690                     have_immintrin_h_hdr=yes,
   691                     have_immintrin_h_hdr=no)
   692     if test x$have_immintrin_h_hdr = xyes; then
   693         AC_DEFINE(HAVE_IMMINTRIN_H, 1, [ ])
   694     fi
   695 
   696     AC_ARG_ENABLE(altivec,
   697 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   698                   , enable_altivec=yes)
   699     if test x$enable_altivec = xyes; then
   700         save_CFLAGS="$CFLAGS"
   701         have_gcc_altivec=no
   702         have_altivec_h_hdr=no
   703         altivec_CFLAGS="-maltivec"
   704         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   705 
   706         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   707         AC_TRY_COMPILE([
   708         #include <altivec.h>
   709         vector unsigned int vzero() {
   710             return vec_splat_u32(0);
   711         }
   712         ],[
   713         ],[
   714         have_gcc_altivec=yes
   715         have_altivec_h_hdr=yes
   716         ])
   717         AC_MSG_RESULT($have_gcc_altivec)
   718 
   719         if test x$have_gcc_altivec = xno; then
   720             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   721             AC_TRY_COMPILE([
   722             vector unsigned int vzero() {
   723                 return vec_splat_u32(0);
   724             }
   725             ],[
   726             ],[
   727             have_gcc_altivec=yes
   728             ])
   729             AC_MSG_RESULT($have_gcc_altivec)
   730         fi
   731 
   732         if test x$have_gcc_altivec = xno; then
   733             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   734             altivec_CFLAGS="-faltivec"
   735             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   736             AC_TRY_COMPILE([
   737             #include <altivec.h>
   738             vector unsigned int vzero() {
   739                 return vec_splat_u32(0);
   740             }
   741             ],[
   742             ],[
   743             have_gcc_altivec=yes
   744             have_altivec_h_hdr=yes
   745             ])
   746             AC_MSG_RESULT($have_gcc_altivec)
   747         fi
   748 
   749         if test x$have_gcc_altivec = xno; then
   750             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   751             AC_TRY_COMPILE([
   752             vector unsigned int vzero() {
   753                 return vec_splat_u32(0);
   754             }
   755             ],[
   756             ],[
   757             have_gcc_altivec=yes
   758             ])
   759             AC_MSG_RESULT($have_gcc_altivec)
   760         fi
   761         CFLAGS="$save_CFLAGS"
   762 
   763         if test x$have_gcc_altivec = xyes; then
   764             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   765             if test x$have_altivec_h_hdr = xyes; then
   766               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   767             fi
   768             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   769             SUMMARY_math="${SUMMARY_math} altivec"
   770         fi
   771     fi
   772 fi
   773 
   774 dnl See if the OSS audio interface is supported
   775 CheckOSS()
   776 {
   777     AC_ARG_ENABLE(oss,
   778 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   779                   , enable_oss=maybe)
   780 
   781     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   782     #  use sndio instead. So on there, we default to disabled. You can force
   783     #  it on if you really want, though.
   784     if test x$enable_oss = xmaybe; then
   785         enable_oss=yes
   786         case "$host" in
   787             *-*-openbsd*)
   788                 enable_oss=no;;
   789         esac
   790     fi
   791 
   792     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   793         AC_MSG_CHECKING(for OSS audio support)
   794         have_oss=no
   795         if test x$have_oss != xyes; then
   796             AC_TRY_COMPILE([
   797               #include <sys/soundcard.h>
   798             ],[
   799               int arg = SNDCTL_DSP_SETFRAGMENT;
   800             ],[
   801             have_oss=yes
   802             ])
   803         fi
   804         if test x$have_oss != xyes; then
   805             AC_TRY_COMPILE([
   806               #include <soundcard.h>
   807             ],[
   808               int arg = SNDCTL_DSP_SETFRAGMENT;
   809             ],[
   810             have_oss=yes
   811             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   812             ])
   813         fi
   814         AC_MSG_RESULT($have_oss)
   815         if test x$have_oss = xyes; then
   816             SUMMARY_audio="${SUMMARY_audio} oss"
   817             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   818             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   819             have_audio=yes
   820 
   821             # We may need to link with ossaudio emulation library
   822             case "$host" in
   823                 *-*-openbsd*|*-*-netbsd*)
   824                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   825             esac
   826         fi
   827     fi
   828 }
   829 
   830 dnl See if the ALSA audio interface is supported
   831 CheckALSA()
   832 {
   833     AC_ARG_ENABLE(alsa,
   834 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   835                   , enable_alsa=yes)
   836     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   837         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   838         # Restore all flags from before the ALSA detection runs
   839         CFLAGS="$alsa_save_CFLAGS"
   840         LDFLAGS="$alsa_save_LDFLAGS"
   841         LIBS="$alsa_save_LIBS"
   842         if test x$have_alsa = xyes; then
   843             AC_ARG_ENABLE(alsa-shared,
   844 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   845                           , enable_alsa_shared=yes)
   846             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   847 
   848             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   849             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   850             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   851             if test x$have_loadso != xyes && \
   852                test x$enable_alsa_shared = xyes; then
   853                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   854             fi
   855             if test x$have_loadso = xyes && \
   856                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   857                 echo "-- dynamic libasound -> $alsa_lib"
   858                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   859                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   860             else
   861                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   862                 SUMMARY_audio="${SUMMARY_audio} alsa"
   863             fi
   864             have_audio=yes
   865         fi
   866     fi
   867 }
   868 
   869 dnl Find JACK Audio
   870 CheckJACK()
   871 {
   872     AC_ARG_ENABLE(jack,
   873 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   874                   , enable_jack=yes)
   875     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   876         audio_jack=no
   877 
   878         JACK_REQUIRED_VERSION=0.125
   879 
   880         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   881         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   882         if test x$PKG_CONFIG != xno; then
   883         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   884                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   885                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   886                 audio_jack=yes
   887             fi
   888         fi
   889         AC_MSG_RESULT($audio_jack)
   890 
   891         if test x$audio_jack = xyes; then
   892             AC_ARG_ENABLE(jack-shared,
   893 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   894                           , enable_jack_shared=yes)
   895             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   896 
   897             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   898             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   899             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   900             if test x$have_loadso != xyes && \
   901                test x$enable_jack_shared = xyes; then
   902                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   903             fi
   904             if test x$have_loadso = xyes && \
   905                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   906                 echo "-- dynamic libjack -> $jack_lib"
   907                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   908                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   909 
   910                 case "$host" in
   911                     # On Solaris, jack must be linked deferred explicitly
   912                     # to prevent undefined symbol failures.
   913                     *-*-solaris*)
   914                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   915                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   916                 esac
   917             else
   918                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   919                 SUMMARY_audio="${SUMMARY_audio} jack"
   920             fi
   921             have_audio=yes
   922         fi
   923     fi
   924 }
   925 
   926 dnl Find the ESD includes and libraries
   927 CheckESD()
   928 {
   929     AC_ARG_ENABLE(esd,
   930 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   931                   , enable_esd=yes)
   932     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   933         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   934         if test x$have_esd = xyes; then
   935             AC_ARG_ENABLE(esd-shared,
   936 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   937                           , enable_esd_shared=yes)
   938             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   939 
   940             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   941             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   942             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   943             if test x$have_loadso != xyes && \
   944                test x$enable_esd_shared = xyes; then
   945                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   946             fi
   947             if test x$have_loadso = xyes && \
   948                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   949                 echo "-- dynamic libesd -> $esd_lib"
   950                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   951                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   952             else
   953                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   954                 SUMMARY_audio="${SUMMARY_audio} esd"
   955             fi
   956             have_audio=yes
   957         fi
   958     fi
   959 }
   960 
   961 dnl Find PulseAudio
   962 CheckPulseAudio()
   963 {
   964     AC_ARG_ENABLE(pulseaudio,
   965 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   966                   , enable_pulseaudio=yes)
   967     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   968         audio_pulseaudio=no
   969 
   970         PULSEAUDIO_REQUIRED_VERSION=0.9
   971 
   972         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   973         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   974         if test x$PKG_CONFIG != xno; then
   975             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   976                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   977                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   978                 audio_pulseaudio=yes
   979             fi
   980         fi
   981         AC_MSG_RESULT($audio_pulseaudio)
   982 
   983         if test x$audio_pulseaudio = xyes; then
   984             AC_ARG_ENABLE(pulseaudio-shared,
   985 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   986                           , enable_pulseaudio_shared=yes)
   987             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   988 
   989             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   990             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   991             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   992             if test x$have_loadso != xyes && \
   993                test x$enable_pulseaudio_shared = xyes; then
   994                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   995             fi
   996             if test x$have_loadso = xyes && \
   997                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   998                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   999                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
  1000                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
  1001 
  1002                 case "$host" in
  1003                     # On Solaris, pulseaudio must be linked deferred explicitly
  1004                     # to prevent undefined symbol failures.
  1005                     *-*-solaris*)
  1006                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
  1007                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
  1008                 esac
  1009             else
  1010                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
  1011                 SUMMARY_audio="${SUMMARY_audio} pulse"
  1012             fi
  1013             have_audio=yes
  1014         fi
  1015     fi
  1016 }
  1017 
  1018 CheckARTSC()
  1019 {
  1020     AC_ARG_ENABLE(arts,
  1021 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
  1022                   , enable_arts=yes)
  1023     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
  1024         AC_PATH_PROG(ARTSCONFIG, artsc-config)
  1025         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
  1026             : # arts isn't installed
  1027         else
  1028             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1029             ARTS_LIBS=`$ARTSCONFIG --libs`
  1030             AC_MSG_CHECKING(for aRts development environment)
  1031             audio_arts=no
  1032             save_CFLAGS="$CFLAGS"
  1033             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1034             AC_TRY_COMPILE([
  1035              #include <artsc.h>
  1036             ],[
  1037              arts_stream_t stream;
  1038             ],[
  1039             audio_arts=yes
  1040             ])
  1041             CFLAGS="$save_CFLAGS"
  1042             AC_MSG_RESULT($audio_arts)
  1043             if test x$audio_arts = xyes; then
  1044                 AC_ARG_ENABLE(arts-shared,
  1045 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1046                               , enable_arts_shared=yes)
  1047                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1048 
  1049                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1050                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1051                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1052                 if test x$have_loadso != xyes && \
  1053                    test x$enable_arts_shared = xyes; then
  1054                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1055                 fi
  1056                 if test x$have_loadso = xyes && \
  1057                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1058                     echo "-- dynamic libartsc -> $arts_lib"
  1059                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1060                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1061                 else
  1062                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1063                     SUMMARY_audio="${SUMMARY_audio} arts"
  1064                 fi
  1065                 have_audio=yes
  1066             fi
  1067         fi
  1068     fi
  1069 }
  1070 
  1071 dnl See if the NAS audio interface is supported
  1072 CheckNAS()
  1073 {
  1074     AC_ARG_ENABLE(nas,
  1075 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1076                   , enable_nas=yes)
  1077     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1078         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1079         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1080 
  1081         AC_MSG_CHECKING(for NAS audio support)
  1082         have_nas=no
  1083 
  1084         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1085             have_nas=yes
  1086             NAS_LIBS="-laudio"
  1087 
  1088         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1089             have_nas=yes
  1090             NAS_CFLAGS="-I/usr/X11R6/include/"
  1091             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1092 
  1093         fi
  1094 
  1095         AC_MSG_RESULT($have_nas)
  1096 
  1097         if test x$have_nas = xyes; then
  1098             AC_ARG_ENABLE(nas-shared,
  1099 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1100                           , enable_nas_shared=yes)
  1101             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1102 
  1103             if test x$have_loadso != xyes && \
  1104                test x$enable_nas_shared = xyes; then
  1105                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1106             fi
  1107             if test x$have_loadso = xyes && \
  1108                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1109                 echo "-- dynamic libaudio -> $nas_lib"
  1110                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1111                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1112             else
  1113                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1114                 SUMMARY_audio="${SUMMARY_audio} nas"
  1115             fi
  1116 
  1117             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1118             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1119             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1120             have_audio=yes
  1121         fi
  1122     fi
  1123 }
  1124 
  1125 dnl See if the sndio audio interface is supported
  1126 CheckSNDIO()
  1127 {
  1128     AC_ARG_ENABLE(sndio,
  1129 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1130                   , enable_sndio=yes)
  1131     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1132         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1133         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1134 
  1135         AC_MSG_CHECKING(for sndio audio support)
  1136         have_sndio=no
  1137 
  1138         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1139             have_sndio=yes
  1140             SNDIO_LIBS="-lsndio"
  1141         fi
  1142 
  1143         AC_MSG_RESULT($have_sndio)
  1144 
  1145         if test x$have_sndio = xyes; then
  1146             AC_ARG_ENABLE(sndio-shared,
  1147 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1148                           , enable_sndio_shared=yes)
  1149             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1150 
  1151             if test x$have_loadso != xyes && \
  1152                test x$enable_sndio_shared = xyes; then
  1153                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1154             fi
  1155             if test x$have_loadso = xyes && \
  1156                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1157                 echo "-- dynamic libsndio -> $sndio_lib"
  1158                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1159                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1160             else
  1161                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1162                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1163             fi
  1164 
  1165             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1166             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1167             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1168             have_audio=yes
  1169         fi
  1170     fi
  1171 }
  1172 
  1173 dnl Find FusionSound
  1174 CheckFusionSound()
  1175 {
  1176     AC_ARG_ENABLE(fusionsound,
  1177 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1178                   , enable_fusionsound=no)
  1179     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1180         fusionsound=no
  1181 
  1182         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1183 
  1184         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1185         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1186         if test x$PKG_CONFIG != xno; then
  1187             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1188                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1189                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1190                 fusionsound=yes
  1191             fi
  1192         fi
  1193         AC_MSG_RESULT($fusionsound)
  1194 
  1195         if test x$fusionsound = xyes; then
  1196             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1197             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1198             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1199             
  1200             AC_ARG_ENABLE(fusionsound-shared,
  1201 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1202                           , enable_fusionsound_shared=yes)
  1203             fusionsound_shared=no
  1204             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1205             if test x$have_loadso != xyes && \
  1206                test x$enable_fusionsound_shared = xyes; then
  1207                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1208             fi
  1209             if test x$have_loadso = xyes && \
  1210                test x$enable_fusionsound_shared = xyes; then
  1211                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1212                 fusionsound_shared=yes
  1213                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1214             else
  1215                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1216                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1217             fi
  1218             AC_MSG_RESULT($fusionsound_shared)
  1219             
  1220             have_audio=yes
  1221         fi
  1222     fi
  1223 }
  1224 
  1225 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1226 CheckDiskAudio()
  1227 {
  1228     AC_ARG_ENABLE(diskaudio,
  1229 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1230                   , enable_diskaudio=yes)
  1231     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1232         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1233         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1234         SUMMARY_audio="${SUMMARY_audio} disk"
  1235     fi
  1236 }
  1237 
  1238 dnl rcg03142006 See if the user wants the dummy audio driver...
  1239 CheckDummyAudio()
  1240 {
  1241     AC_ARG_ENABLE(dummyaudio,
  1242 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1243                   , enable_dummyaudio=yes)
  1244     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1245         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1246         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1247         SUMMARY_audio="${SUMMARY_audio} dummy"
  1248     fi
  1249 }
  1250 
  1251 dnl See if libsamplerate is available
  1252 CheckLibSampleRate()
  1253 {
  1254     AC_ARG_ENABLE(libsamplerate,
  1255 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1256                   , enable_libsamplerate=yes)
  1257     if test x$enable_libsamplerate = xyes; then
  1258         AC_CHECK_HEADER(samplerate.h,
  1259                         have_samplerate_h_hdr=yes,
  1260                         have_samplerate_h_hdr=no)
  1261         if test x$have_samplerate_h_hdr = xyes; then
  1262             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1263 
  1264             AC_ARG_ENABLE(libsamplerate-shared,
  1265 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1266                           , enable_libsamplerate_shared=yes)
  1267 
  1268             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1269 
  1270             if test x$have_loadso != xyes && \
  1271                test x$enable_libsamplerate_shared = xyes; then
  1272                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1273             fi
  1274             if test x$have_loadso = xyes && \
  1275                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1276                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1277                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1278             else
  1279                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1280             fi
  1281         fi
  1282     fi
  1283 }
  1284 
  1285 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1286 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1287 CheckVisibilityHidden()
  1288 {
  1289     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1290     have_gcc_fvisibility=no
  1291 
  1292     visibility_CFLAGS="-fvisibility=hidden"
  1293     save_CFLAGS="$CFLAGS"
  1294     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1295     AC_TRY_COMPILE([
  1296     #if !defined(__GNUC__) || __GNUC__ < 4
  1297     #error SDL only uses visibility attributes in GCC 4 or newer
  1298     #endif
  1299     ],[
  1300     ],[
  1301     have_gcc_fvisibility=yes
  1302     ])
  1303     AC_MSG_RESULT($have_gcc_fvisibility)
  1304     CFLAGS="$save_CFLAGS"
  1305 
  1306     if test x$have_gcc_fvisibility = xyes; then
  1307         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1308     fi
  1309 }
  1310 
  1311 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1312 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1313 CheckStackBoundary()
  1314 {
  1315     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1316     have_gcc_preferred_stack_boundary=no
  1317 
  1318     save_CFLAGS="$CFLAGS"
  1319     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1320     AC_TRY_COMPILE([
  1321     int x = 0;
  1322     ],[
  1323     ],[
  1324     have_gcc_preferred_stack_boundary=yes
  1325     ])
  1326     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1327     CFLAGS="$save_CFLAGS"
  1328 
  1329     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1330         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1331     fi
  1332 }
  1333 
  1334 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1335 dnl  This lets us catch things that would fail on a C89 compiler when using
  1336 dnl  a modern GCC.
  1337 CheckDeclarationAfterStatement()
  1338 {
  1339     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1340     have_gcc_declaration_after_statement=no
  1341 
  1342     save_CFLAGS="$CFLAGS"
  1343     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1344     AC_TRY_COMPILE([
  1345     int x = 0;
  1346     ],[
  1347     ],[
  1348     have_gcc_declaration_after_statement=yes
  1349     ])
  1350     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1351     CFLAGS="$save_CFLAGS"
  1352 
  1353     if test x$have_gcc_declaration_after_statement = xyes; then
  1354         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1355     fi
  1356 }
  1357 
  1358 dnl See if GCC's -Wall is supported.
  1359 CheckWarnAll()
  1360 {
  1361     AC_MSG_CHECKING(for GCC -Wall option)
  1362     have_gcc_Wall=no
  1363 
  1364     save_CFLAGS="$CFLAGS"
  1365     CFLAGS="$save_CFLAGS -Wall"
  1366     AC_TRY_COMPILE([
  1367     int x = 0;
  1368     ],[
  1369     ],[
  1370     have_gcc_Wall=yes
  1371     ])
  1372     AC_MSG_RESULT($have_gcc_Wall)
  1373     CFLAGS="$save_CFLAGS"
  1374 
  1375     if test x$have_gcc_Wall = xyes; then
  1376         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1377 
  1378         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1379         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1380         need_gcc_Wno_multichar=no
  1381         case "$host" in
  1382             *-*-haiku*)
  1383                 need_gcc_Wno_multichar=yes
  1384                 ;;
  1385         esac
  1386         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1387         if test x$need_gcc_Wno_multichar = xyes; then
  1388             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1389         fi
  1390     fi
  1391 }
  1392 
  1393 dnl Check for Wayland
  1394 CheckWayland()
  1395 {
  1396     AC_ARG_ENABLE(video-wayland,
  1397 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1398                   ,enable_video_wayland=yes)
  1399 
  1400     AC_ARG_ENABLE(video-wayland-qt-touch,
  1401 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1402                   ,enable_video_wayland_qt_touch=yes)
  1403 
  1404     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1405         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1406         AC_MSG_CHECKING(for Wayland support)
  1407         video_wayland=no
  1408         if  test x$PKG_CONFIG != xno && \
  1409             test x$video_opengl_egl = xyes && \
  1410             test x$video_opengles_v2 = xyes; then
  1411             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1412                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1413                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1414                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1415                 video_wayland=yes
  1416             fi
  1417         fi
  1418         AC_MSG_RESULT($video_wayland)
  1419 
  1420         if test x$video_wayland = xyes; then
  1421             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1422             if test x$enable_video_wayland_qt_touch = xyes; then
  1423                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1424             fi
  1425 
  1426             WAYLAND_SOURCES="$srcdir/src/video/wayland/*.c"
  1427             SOURCES="$SOURCES $WAYLAND_SOURCES"
  1428             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1429             AC_ARG_ENABLE(wayland-shared,
  1430 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1431                           , enable_wayland_shared=maybe)
  1432 
  1433             dnl FIXME: Do BSD and OS X need special cases?
  1434             case "$host" in
  1435                 *)
  1436                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1437                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1438                     if test x$wayland_egl_lib = x; then
  1439                         dnl This works in Ubuntu 13.10, maybe others
  1440                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1441                     fi
  1442                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1443                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1444                     ;;
  1445             esac
  1446 
  1447             if test x$enable_wayland_shared = xmaybe; then
  1448                 enable_wayland_shared=yes
  1449             fi
  1450             if test x$have_loadso != xyes && \
  1451                test x$enable_wayland_shared = xyes; then
  1452                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1453                 enable_wayland_shared=no
  1454             fi
  1455             if test x$have_loadso = xyes && \
  1456                test x$enable_wayland_shared = xyes && \
  1457                test x$wayland_client_lib != x && \
  1458                test x$wayland_egl_lib != x && \
  1459                test x$wayland_cursor_lib != x && \
  1460                test x$xkbcommon_lib != x; then
  1461                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1462                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1463                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1464                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1465                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1466                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1467                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1468                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1469                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1470             else
  1471                 enable_wayland_shared=no
  1472                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1473                 SUMMARY_video="${SUMMARY_video} wayland"
  1474             fi
  1475             have_video=yes
  1476         fi
  1477     fi
  1478 }
  1479 
  1480 dnl Check for Mir
  1481 CheckMir()
  1482 {
  1483     AC_ARG_ENABLE(video-mir,
  1484 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=no]]]),
  1485                   ,enable_video_mir=no)
  1486 
  1487     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1488         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1489         AC_MSG_CHECKING(for Mir support)
  1490         video_mir=no
  1491         if test x$PKG_CONFIG != xno; then
  1492             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1493                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1494                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1495                 save_CFLAGS="$CFLAGS"
  1496                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1497 
  1498                 dnl This will disable Mir if >= v0.26 is not available
  1499                 AC_TRY_COMPILE([
  1500                 #include <mir_toolkit/mir_client_library.h>
  1501                 ],[
  1502                     MirWindowAttrib attrib = mir_window_attrib_state
  1503                 ],[
  1504                 video_mir=yes
  1505                 ])
  1506                 CFLAGS="$save_CFLAGS"
  1507             fi
  1508         fi
  1509         AC_MSG_RESULT($video_mir)
  1510 
  1511         if test x$video_mir = xyes; then
  1512             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1513             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1514             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1515             AC_ARG_ENABLE(mir-shared,
  1516 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1517                           , enable_mir_shared=maybe)
  1518 
  1519             dnl FIXME: Do BSD and OS X need special cases?
  1520             case "$host" in
  1521                 *)
  1522                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1523                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1524                     ;;
  1525             esac
  1526 
  1527             if test x$enable_mir_shared = xmaybe; then
  1528                 enable_mir_shared=yes
  1529             fi
  1530             if test x$have_loadso != xyes && \
  1531                test x$enable_mir_shared = xyes; then
  1532                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1533                 enable_mir_shared=no
  1534             fi
  1535             if test x$have_loadso = xyes && \
  1536                test x$enable_mir_shared = xyes && \
  1537                test x$mirclient_lib != x && \
  1538                test x$xkbcommon_lib != x; then
  1539                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1540                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1541                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1542                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1543                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1544             else
  1545                 enable_mir_shared=no
  1546                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1547                 SUMMARY_video="${SUMMARY_video} mir"
  1548             fi
  1549             have_video=yes
  1550         fi
  1551     fi
  1552 }
  1553 
  1554 dnl Check for Native Client stuff
  1555 CheckNativeClient()
  1556 {
  1557         AC_TRY_COMPILE([
  1558           #if !defined(__native_client__)
  1559           #error "NO NACL"
  1560           #endif
  1561         ],[
  1562         ],[
  1563         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1564         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1565         AC_DEFINE(HAVE_POW, 1, [ ])
  1566         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1567         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1568         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1569 
  1570         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1571 
  1572         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1573         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1574         SUMMARY_audio="${SUMMARY_audio} nacl"
  1575         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1576         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1577         ])
  1578 }
  1579 
  1580 
  1581 CheckRPI()
  1582 {
  1583     AC_ARG_ENABLE(video-rpi,
  1584 AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
  1585                   , enable_video_rpi=yes)
  1586     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
  1587         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1588         if test x$PKG_CONFIG != xno && $PKG_CONFIG --exists bcm_host; then
  1589             RPI_CFLAGS=`$PKG_CONFIG --cflags bcm_host brcmegl`
  1590             RPI_LDFLAGS=`$PKG_CONFIG --libs bcm_host brcmegl`
  1591         elif test x$ARCH = xnetbsd; then
  1592             RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  1593             RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
  1594         else
  1595             RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  1596             RPI_LDFLAGS="-Wl,-rpath,/opt/vc/lib -L/opt/vc/lib -lbcm_host"
  1597         fi
  1598 
  1599         # Save the original compiler flags and libraries
  1600         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1601 
  1602         # Add the Raspberry Pi compiler flags and libraries
  1603         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_LDFLAGS"
  1604 
  1605         AC_MSG_CHECKING(for Raspberry Pi)
  1606         have_video_rpi=no
  1607         AC_TRY_LINK([
  1608           #include <bcm_host.h>
  1609         ],[
  1610           bcm_host_init();
  1611         ],[
  1612         have_video_rpi=yes
  1613         ],[
  1614         ])
  1615         AC_MSG_RESULT($have_video_rpi)
  1616 
  1617         # Restore the compiler flags and libraries
  1618         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1619         
  1620         if test x$have_video_rpi = xyes; then
  1621             CFLAGS="$CFLAGS $RPI_CFLAGS"
  1622             SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  1623             EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  1624             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_LDFLAGS"
  1625             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  1626             AC_DEFINE(SDL_VIDEO_DRIVER_RPI, 1, [ ])
  1627             SUMMARY_video="${SUMMARY_video} rpi"
  1628         fi
  1629     fi
  1630 }
  1631 
  1632 dnl Find the X11 include and library directories
  1633 CheckX11()
  1634 {
  1635     AC_ARG_ENABLE(video-x11,
  1636 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1637                   , enable_video_x11=yes)
  1638     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1639         case "$host" in
  1640             *-*-darwin*)
  1641                 # This isn't necessary for X11, but fixes GLX detection
  1642                 if test "x$x_includes" = xNONE && \
  1643                    test "x$x_libraries" = xNONE && \
  1644                    test -d /usr/X11R6/include && \
  1645                    test -d /usr/X11R6/lib; then
  1646                     x_includes="/usr/X11R6/include"
  1647                     x_libraries="/usr/X11R6/lib"
  1648                 fi
  1649                 ;;
  1650         esac
  1651         AC_PATH_X
  1652         AC_PATH_XTRA
  1653         if test x$have_x = xyes; then
  1654             AC_ARG_ENABLE(x11-shared,
  1655 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1656                           , enable_x11_shared=maybe)
  1657 
  1658             case "$host" in
  1659                 *-*-darwin*)
  1660                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1661                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1662                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1663                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1664                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1665                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1666                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1667                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1668                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1669                     ;;
  1670                 *-*-openbsd*)
  1671                     x11_lib='libX11.so'
  1672                     x11ext_lib='libXext.so'
  1673                     xcursor_lib='libXcursor.so'
  1674                     xinerama_lib='libXinerama.so'
  1675                     xinput_lib='libXi.so'
  1676                     xrandr_lib='libXrandr.so'
  1677                     xrender_lib='libXrender.so'
  1678                     xss_lib='libXss.so'
  1679                     xvidmode_lib='libXxf86vm.so'
  1680                     ;;
  1681                 *)
  1682                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1683                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1684                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1685                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1686                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1687                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1688                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1689                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1690                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1691                     ;;
  1692             esac
  1693 
  1694             if test x$ac_cv_func_shmat != xyes; then
  1695                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1696             fi
  1697             CFLAGS="$CFLAGS $X_CFLAGS"
  1698             LDFLAGS="$LDFLAGS $X_LIBS"
  1699 
  1700             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1701                             have_xext_h_hdr=yes,
  1702                             have_xext_h_hdr=no,
  1703                             [#include <X11/Xlib.h>
  1704                              #include <X11/Xproto.h>
  1705                             ])
  1706             if test x$have_xext_h_hdr != xyes; then
  1707                AC_MSG_ERROR([
  1708 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1709                ])
  1710             fi
  1711 
  1712             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1713             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1714             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1715 
  1716             # Needed so SDL applications can include SDL_syswm.h
  1717             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1718 
  1719             if test x$enable_x11_shared = xmaybe; then
  1720                 enable_x11_shared=yes
  1721             fi
  1722             if test x$have_loadso != xyes && \
  1723                test x$enable_x11_shared = xyes; then
  1724                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1725                 enable_x11_shared=no
  1726             fi
  1727             if test x$have_loadso = xyes && \
  1728                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1729                 echo "-- dynamic libX11 -> $x11_lib"
  1730                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1731                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1732                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1733                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1734             else
  1735                 enable_x11_shared=no
  1736                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1737                 SUMMARY_video="${SUMMARY_video} x11"
  1738             fi
  1739             have_video=yes
  1740 
  1741             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1742             have_const_param_XextAddDisplay=no
  1743             AC_TRY_COMPILE([
  1744               #include <X11/Xlib.h>
  1745               #include <X11/Xproto.h>
  1746               #include <X11/extensions/Xext.h>
  1747               #include <X11/extensions/extutil.h>
  1748               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1749             ],[
  1750             ],[
  1751             have_const_param_XextAddDisplay=yes
  1752             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1753             ])
  1754             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1755 
  1756             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1757             AC_MSG_CHECKING([for XGenericEvent])
  1758             have_XGenericEvent=no
  1759             AC_TRY_COMPILE([
  1760                 #include <X11/Xlib.h>
  1761             ],[
  1762 Display *display;
  1763 XEvent event;
  1764 XGenericEventCookie *cookie = &event.xcookie;
  1765 XNextEvent(display, &event);
  1766 XGetEventData(display, cookie);
  1767 XFreeEventData(display, cookie);
  1768             ],[
  1769                 have_XGenericEvent=yes
  1770                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1771             ])
  1772             AC_MSG_RESULT($have_XGenericEvent)
  1773 
  1774             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1775 
  1776             AC_ARG_ENABLE(video-x11-xcursor,
  1777 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1778                             , enable_video_x11_xcursor=yes)
  1779             if test x$enable_video_x11_xcursor = xyes; then
  1780                 definitely_enable_video_x11_xcursor=no
  1781                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1782                                 have_xcursor_h_hdr=yes,
  1783                                 have_xcursor_h_hdr=no,
  1784                                 [#include <X11/Xlib.h>
  1785                                 ])
  1786                 if test x$have_xcursor_h_hdr = xyes; then
  1787                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1788                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1789                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1790                         definitely_enable_video_x11_xcursor=yes
  1791                     else
  1792                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1793                         if test x$have_xcursor_lib = xyes ; then
  1794                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1795                             definitely_enable_video_x11_xcursor=yes
  1796                         fi
  1797                     fi
  1798                 fi
  1799             fi
  1800             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1801                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1802                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1803             fi
  1804             AC_ARG_ENABLE(video-x11-xdbe,
  1805 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1806                             , enable_video_x11_xdbe=yes)
  1807             if test x$enable_video_x11_xdbe = xyes; then
  1808                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1809                                 have_dbe_h_hdr=yes,
  1810                                 have_dbe_h_hdr=no,
  1811                                 [#include <X11/Xlib.h>
  1812                                 ])
  1813                 if test x$have_dbe_h_hdr = xyes; then
  1814                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1815                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1816                 fi
  1817             fi
  1818             AC_ARG_ENABLE(video-x11-xinerama,
  1819 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1820                             , enable_video_x11_xinerama=yes)
  1821             if test x$enable_video_x11_xinerama = xyes; then
  1822                 definitely_enable_video_x11_xinerama=no
  1823                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1824                                 have_xinerama_h_hdr=yes,
  1825                                 have_xinerama_h_hdr=no,
  1826                                 [#include <X11/Xlib.h>
  1827                                 ])
  1828                 if test x$have_xinerama_h_hdr = xyes; then
  1829                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1830                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1831                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1832                         definitely_enable_video_x11_xinerama=yes
  1833                     else
  1834                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1835                         if test x$have_xinerama_lib = xyes ; then
  1836                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1837                             definitely_enable_video_x11_xinerama=yes
  1838                         fi
  1839                     fi
  1840                 fi
  1841             fi
  1842             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1843                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1844                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1845             fi
  1846             AC_ARG_ENABLE(video-x11-xinput,
  1847 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1848                             , enable_video_x11_xinput=yes)
  1849             if test x$enable_video_x11_xinput = xyes; then
  1850                 definitely_enable_video_x11_xinput=no
  1851                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1852                                 have_xinput_h_hdr=yes,
  1853                                 have_xinput_h_hdr=no,
  1854                                 [#include <X11/Xlib.h>
  1855                                 ])
  1856                 if test x$have_xinput_h_hdr = xyes; then
  1857                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1858                         echo "-- dynamic libXi -> $xinput_lib"
  1859                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1860                         definitely_enable_video_x11_xinput=yes
  1861                     else
  1862                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1863                         if test x$have_xinput_lib = xyes ; then
  1864                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1865                             definitely_enable_video_x11_xinput=yes
  1866                         fi
  1867                     fi
  1868                 fi
  1869             fi
  1870             if test x$definitely_enable_video_x11_xinput = xyes; then
  1871                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1872                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1873                 AC_MSG_CHECKING(for xinput2 multitouch)
  1874                 have_xinput2_multitouch=no
  1875                 AC_TRY_COMPILE([
  1876                     #include <X11/Xlib.h>
  1877                     #include <X11/Xproto.h>
  1878                     #include <X11/extensions/XInput2.h>
  1879                     ],[
  1880 int event_type = XI_TouchBegin;
  1881 XITouchClassInfo *t;
  1882                     ],[
  1883                     have_xinput2_multitouch=yes
  1884                     AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1885                     SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1886                     ])
  1887                 AC_MSG_RESULT($have_xinput2_multitouch)
  1888             fi
  1889             AC_ARG_ENABLE(video-x11-xrandr,
  1890 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1891                             , enable_video_x11_xrandr=yes)
  1892             if test x$enable_video_x11_xrandr = xyes; then
  1893                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1894                 definitely_enable_video_x11_xrandr=no
  1895                 have_xrandr_h_hdr=no
  1896                 AC_TRY_COMPILE([
  1897                 #include <X11/Xlib.h>
  1898                 #include <X11/extensions/Xrandr.h>
  1899                 ],[
  1900                 XRRScreenResources *res = NULL;
  1901                 ],[
  1902                 have_xrandr_h_hdr=yes
  1903                 ])
  1904                 if test x$have_xrandr_h_hdr = xyes; then
  1905                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1906                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1907                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1908                         definitely_enable_video_x11_xrandr=yes
  1909                     else
  1910                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1911                         if test x$have_xrandr_lib = xyes ; then
  1912                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1913                             definitely_enable_video_x11_xrandr=yes
  1914                         fi
  1915                     fi
  1916                 fi
  1917             fi
  1918             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1919                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1920                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1921             fi
  1922             AC_ARG_ENABLE(video-x11-scrnsaver,
  1923 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1924                             , enable_video_x11_scrnsaver=yes)
  1925             if test x$enable_video_x11_scrnsaver = xyes; then
  1926                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1927                                 have_scrnsaver_h_hdr=yes,
  1928                                 have_scrnsaver_h_hdr=no,
  1929                                 [#include <X11/Xlib.h>
  1930                                 ])
  1931                 if test x$have_scrnsaver_h_hdr = xyes; then
  1932                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1933                         echo "-- dynamic libXss -> $xss_lib"
  1934                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1935                         definitely_enable_video_x11_scrnsaver=yes
  1936                     else
  1937                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1938                         if test x$have_xss_lib = xyes ; then
  1939                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1940                             definitely_enable_video_x11_scrnsaver=yes
  1941                         fi
  1942                     fi
  1943                 fi
  1944             fi
  1945             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1946                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1947                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1948             fi
  1949             AC_ARG_ENABLE(video-x11-xshape,
  1950 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1951                             , enable_video_x11_xshape=yes)
  1952             if test x$enable_video_x11_xshape = xyes; then
  1953                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1954                                 have_shape_h_hdr=yes,
  1955                                 have_shape_h_hdr=no,
  1956                                 [#include <X11/Xlib.h>
  1957                                 ])
  1958                 if test x$have_shape_h_hdr = xyes; then
  1959                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1960                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1961                 fi
  1962             fi
  1963             AC_ARG_ENABLE(video-x11-vm,
  1964 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1965                             , enable_video_x11_vm=yes)
  1966             if test x$enable_video_x11_vm = xyes; then
  1967                 definitely_enable_video_x11_vm=no
  1968                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1969                                 have_vm_h_hdr=yes,
  1970                                 have_vm_h_hdr=no,
  1971                                 [#include <X11/Xlib.h>
  1972                                 ])
  1973                 if test x$have_vm_h_hdr = xyes; then
  1974                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1975                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1976                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1977                         definitely_enable_video_x11_vm=yes
  1978                     else
  1979                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1980                         if test x$have_vm_lib = xyes ; then
  1981                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1982                             definitely_enable_video_x11_vm=yes
  1983                         fi
  1984                     fi
  1985                 fi
  1986             fi
  1987             if test x$definitely_enable_video_x11_vm = xyes; then
  1988                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1989                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1990             fi
  1991         fi
  1992     fi
  1993 }
  1994 
  1995 dnl Set up the Vivante video driver if enabled
  1996 CheckVivanteVideo()
  1997 {
  1998     AC_ARG_ENABLE(video-vivante,
  1999 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  2000                   , enable_video_vivante=yes)
  2001     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  2002         AC_MSG_CHECKING(for Vivante VDK API)
  2003         have_vivante_vdk=no
  2004         AC_TRY_COMPILE([
  2005           #define LINUX
  2006           #define EGL_API_FB
  2007           #include <gc_vdk.h>
  2008         ],[
  2009         ],[
  2010         have_vivante_vdk=yes
  2011         ])
  2012         AC_MSG_RESULT($have_vivante_vdk)
  2013 
  2014         AC_MSG_CHECKING(for Vivante FB API)
  2015         have_vivante_egl=no
  2016         AC_TRY_COMPILE([
  2017           #define LINUX
  2018           #define EGL_API_FB
  2019           #include <EGL/eglvivante.h>
  2020         ],[
  2021         ],[
  2022         have_vivante_egl=yes
  2023         ])
  2024         AC_MSG_RESULT($have_vivante_egl)
  2025 
  2026         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  2027             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  2028             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  2029             if test x$have_vivante_vdk = xyes; then
  2030                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  2031                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  2032             fi
  2033             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  2034             SUMMARY_video="${SUMMARY_video} vivante"
  2035             have_video=yes
  2036         fi
  2037     fi
  2038 }
  2039 
  2040 dnl Set up the Haiku video driver if enabled
  2041 CheckHaikuVideo()
  2042 {
  2043     if test x$enable_video = xyes; then
  2044         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  2045         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  2046         have_video=yes
  2047         SUMMARY_video="${SUMMARY_video} haiku"
  2048     fi
  2049 }
  2050 
  2051 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  2052 CheckCOCOA()
  2053 {
  2054     AC_ARG_ENABLE(video-cocoa,
  2055 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  2056                   , enable_video_cocoa=yes)
  2057     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  2058         save_CFLAGS="$CFLAGS"
  2059         dnl Work around that we don't have Objective-C support in autoconf
  2060         CFLAGS="$CFLAGS -x objective-c"
  2061         AC_MSG_CHECKING(for Cocoa framework)
  2062         have_cocoa=no
  2063         AC_TRY_COMPILE([
  2064           #import <Cocoa/Cocoa.h>
  2065         ],[
  2066         ],[
  2067         have_cocoa=yes
  2068         ])
  2069         AC_MSG_RESULT($have_cocoa)
  2070         CFLAGS="$save_CFLAGS"
  2071         if test x$have_cocoa = xyes; then
  2072             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2073             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2074             SUMMARY_video="${SUMMARY_video} cocoa"
  2075             have_video=yes
  2076         fi
  2077     fi
  2078 }
  2079 
  2080 CheckMETAL()
  2081 {
  2082     AC_ARG_ENABLE(render-metal,
  2083 AC_HELP_STRING([--enable-render-metal], [enable the Metal render driver [[default=yes]]]),
  2084                                 , enable_render_metal=yes)
  2085     if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  2086         save_CFLAGS="$CFLAGS"
  2087         dnl Work around that we don't have Objective-C support in autoconf
  2088         CFLAGS="$CFLAGS -x objective-c"
  2089         AC_MSG_CHECKING(for Metal framework)
  2090         have_metal=no
  2091         AC_TRY_COMPILE([
  2092           #import <Cocoa/Cocoa.h>
  2093           #import <Metal/Metal.h>
  2094           #import <QuartzCore/CAMetalLayer.h>
  2095 
  2096           #if !TARGET_CPU_X86_64
  2097           #error Metal doesn't work on this configuration
  2098           #endif
  2099         ],[
  2100         ],[
  2101         have_metal=yes
  2102         ])
  2103         CFLAGS="$save_CFLAGS"
  2104         AC_MSG_RESULT($have_metal)
  2105         if test x$have_metal = xyes; then
  2106             AC_DEFINE(SDL_VIDEO_RENDER_METAL, 1, [ ])
  2107             SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
  2108             SUMMARY_video="${SUMMARY_video} metal"
  2109         else
  2110             enable_render_metal=no
  2111         fi
  2112     fi
  2113 }
  2114 
  2115 
  2116 dnl Find DirectFB
  2117 CheckDirectFB()
  2118 {
  2119     AC_ARG_ENABLE(video-directfb,
  2120 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2121                   , enable_video_directfb=no)
  2122     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2123         video_directfb=no
  2124 
  2125         DIRECTFB_REQUIRED_VERSION=1.0.0
  2126         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2127         if test x$DIRECTFBCONFIG = xno; then
  2128             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2129             if test x$PKG_CONFIG != xno; then
  2130                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2131                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2132                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2133                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2134                     video_directfb=yes
  2135                 fi
  2136             fi
  2137         else
  2138             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2139             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2140             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2141             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2142             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2143                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2144                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2145                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2146                 video_directfb=yes
  2147             fi
  2148         fi
  2149         if test x$video_directfb = xyes; then
  2150             # SuSE 11.1 installs directfb-config without directfb-devel
  2151             save_CPPFLAGS="$CPPFLAGS"
  2152             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2153             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2154             CPPFLAGS="$save_CPPFLAGS"
  2155             video_directfb=$have_directfb_hdr
  2156         fi
  2157         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2158         AC_MSG_RESULT($video_directfb)
  2159 
  2160         if test x$video_directfb = xyes; then
  2161             AC_ARG_ENABLE(directfb-shared,
  2162 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2163                               , enable_directfb_shared=yes)
  2164 
  2165             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2166             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2167             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2168 
  2169             AC_MSG_CHECKING(for directfb dynamic loading support)
  2170             directfb_shared=no
  2171             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2172             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2173 AC_MSG_WARN("directfb $directfb_lib")
  2174             if test x$have_loadso != xyes && \
  2175                test x$enable_directfb_shared = xyes; then
  2176                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2177             fi
  2178             if test x$have_loadso = xyes && \
  2179                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2180                 directfb_shared=yes
  2181                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2182                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2183                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2184             else
  2185                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2186                 SUMMARY_video="${SUMMARY_video} directfb"
  2187             fi
  2188             AC_MSG_RESULT($directfb_shared)
  2189             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2190             have_video=yes
  2191         fi
  2192     fi
  2193 }
  2194 
  2195 dnl Find KMSDRM
  2196 CheckKMSDRM()
  2197 {
  2198     AC_ARG_ENABLE(video-kmsdrm,
  2199 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2200                   , enable_video_kmsdrm=no)
  2201 
  2202     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2203         video_kmsdrm=no
  2204         libdrm_avail=no
  2205         libgbm_avail=no
  2206 
  2207         LIBDRM_REQUIRED_VERSION=2.4.46
  2208         LIBGBM_REQUIRED_VERSION=9.0.0
  2209 
  2210         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2211         if test x$PKG_CONFIG != xno; then
  2212             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2213                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2214                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2215                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2216                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2217                     libdrm_avail=yes
  2218                 fi
  2219                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2220                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2221                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2222                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2223                     libgbm_avail=yes
  2224                 fi
  2225                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2226                     video_kmsdrm=yes
  2227                 fi
  2228  
  2229                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2230                 AC_MSG_RESULT($libdrm_avail)
  2231                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2232                 AC_MSG_RESULT($libgbm_avail)
  2233 
  2234                 if test x$video_kmsdrm = xyes; then
  2235                     AC_ARG_ENABLE(kmsdrm-shared,
  2236 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2237                               , enable_kmsdrm_shared=yes)
  2238 
  2239                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2240                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2241                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2242 
  2243                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2244                     kmsdrm_shared=no
  2245                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2246                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2247                     if test x$have_loadso != xyes && \
  2248                        test x$enable_kmsdrm_shared = xyes; then
  2249                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2250                     fi
  2251                     if test x$have_loadso = xyes && \
  2252                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2253                         kmsdrm_shared=yes
  2254                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2255                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2256                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2257                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2258                     else
  2259                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2260                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2261                     fi
  2262                     AC_MSG_RESULT($kmsdrm_shared)
  2263                     have_video=yes
  2264                 fi
  2265             fi
  2266         fi
  2267     fi
  2268 }
  2269 
  2270 dnl rcg04172001 Set up the Null video driver.
  2271 CheckDummyVideo()
  2272 {
  2273     AC_ARG_ENABLE(video-dummy,
  2274 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2275                   , enable_video_dummy=yes)
  2276     if test x$enable_video_dummy = xyes; then
  2277         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2278         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2279         have_video=yes
  2280         SUMMARY_video="${SUMMARY_video} dummy"
  2281     fi
  2282 }
  2283 
  2284 dnl Set up the QNX video driver if enabled
  2285 CheckQNXVideo()
  2286 {
  2287     if test x$enable_video = xyes; then
  2288         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2289         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2290         have_video=yes
  2291         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2292         SUMMARY_video="${SUMMARY_video} qnx"
  2293     fi
  2294 }
  2295 
  2296 dnl Set up the QNX audio driver if enabled
  2297 CheckQNXAudio()
  2298 {
  2299     if test x$enable_audio = xyes; then
  2300         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2301         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2302         have_audio=yes
  2303         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2304         SUMMARY_audio="${SUMMARY_audio} qsa"
  2305     fi
  2306 }
  2307 
  2308 dnl Check to see if OpenGL support is desired
  2309 AC_ARG_ENABLE(video-opengl,
  2310 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2311               , enable_video_opengl=yes)
  2312 
  2313 dnl Find OpenGL
  2314 CheckOpenGLX11()
  2315 {
  2316     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2317         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2318         video_opengl=no
  2319         AC_TRY_COMPILE([
  2320          #include <GL/gl.h>
  2321          #include <GL/glx.h>
  2322         ],[
  2323         ],[
  2324         video_opengl=yes
  2325         ])
  2326         AC_MSG_RESULT($video_opengl)
  2327         if test x$video_opengl = xyes; then
  2328             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2329             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2330             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2331             SUMMARY_video="${SUMMARY_video} opengl"
  2332         fi
  2333     fi
  2334 }
  2335 
  2336 dnl Check to see if OpenGL ES support is desired
  2337 AC_ARG_ENABLE(video-opengles,
  2338 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2339               , enable_video_opengles=yes)
  2340 AC_ARG_ENABLE(video-opengles1,
  2341 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2342               , enable_video_opengles1=yes)
  2343 AC_ARG_ENABLE(video-opengles2,
  2344 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2345               , enable_video_opengles2=yes)
  2346 
  2347 dnl Find OpenGL ES
  2348 CheckOpenGLESX11()
  2349 {
  2350     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2351         AC_MSG_CHECKING(for EGL support)
  2352         video_opengl_egl=no
  2353         AC_TRY_COMPILE([
  2354           #define LINUX
  2355           #define EGL_API_FB
  2356           #include <EGL/egl.h>
  2357           #include <EGL/eglext.h>
  2358         ],[
  2359         ],[
  2360         video_opengl_egl=yes
  2361         ])
  2362         AC_MSG_RESULT($video_opengl_egl)
  2363         if test x$video_opengl_egl = xyes; then
  2364             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2365         fi
  2366             
  2367         if test x$enable_video_opengles1 = xyes; then
  2368             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2369             video_opengles_v1=no
  2370             AC_TRY_COMPILE([
  2371              #include <GLES/gl.h>
  2372              #include <GLES/glext.h>
  2373             ],[
  2374             ],[
  2375             video_opengles_v1=yes
  2376             ])
  2377             AC_MSG_RESULT($video_opengles_v1)
  2378             if test x$video_opengles_v1 = xyes; then
  2379                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2380                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2381                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2382             fi
  2383         fi
  2384         
  2385         if test x$enable_video_opengles2 = xyes; then
  2386             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2387             video_opengles_v2=no
  2388             AC_TRY_COMPILE([
  2389              #include <GLES2/gl2.h>
  2390              #include <GLES2/gl2ext.h>
  2391             ],[
  2392             ],[
  2393             video_opengles_v2=yes
  2394             ])
  2395             AC_MSG_RESULT($video_opengles_v2)
  2396             if test x$video_opengles_v2 = xyes; then
  2397                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2398                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2399                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2400             fi
  2401         fi
  2402     fi
  2403 }
  2404 
  2405 dnl Check for Windows OpenGL
  2406 CheckWINDOWSGL()
  2407 {
  2408     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2409         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2410         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2411         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2412         SUMMARY_video="${SUMMARY_video} opengl"
  2413     fi
  2414 }
  2415 
  2416 dnl Check for Windows OpenGL
  2417 CheckWINDOWSGLES()
  2418 {
  2419     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2420 
  2421         AC_MSG_CHECKING(for EGL support)
  2422         video_opengl_egl=no
  2423         AC_TRY_COMPILE([
  2424          #include <EGL/egl.h>
  2425         ],[
  2426         ],[
  2427         video_opengl_egl=yes
  2428         ])
  2429         AC_MSG_RESULT($video_opengl_egl)
  2430         if test x$video_opengl_egl = xyes; then
  2431             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2432             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2433             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2434         fi
  2435        
  2436         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2437         video_opengles_v2=no
  2438         AC_TRY_COMPILE([
  2439          #include <GLES2/gl2.h>
  2440          #include <GLES2/gl2ext.h>
  2441         ],[
  2442         ],[
  2443         video_opengles_v2=yes
  2444         ])
  2445         AC_MSG_RESULT($video_opengles_v2)
  2446         if test x$video_opengles_v2 = xyes; then
  2447             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2448             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2449             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2450             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2451         fi
  2452     fi
  2453 }
  2454 
  2455 dnl Check for Haiku OpenGL
  2456 CheckHaikuGL()
  2457 {
  2458     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2459         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2460         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2461         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2462         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2463         SUMMARY_video="${SUMMARY_video} opengl"
  2464     fi
  2465 }
  2466 
  2467 dnl Check for MacOS OpenGL
  2468 CheckMacGL()
  2469 {
  2470     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2471         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2472         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2473         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2474         SUMMARY_video="${SUMMARY_video} opengl"
  2475     fi
  2476 }
  2477 
  2478 dnl Check for MacOS OpenGLES
  2479 CheckMacGLES()
  2480 {
  2481     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2482         video_opengl_egl=yes
  2483         AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2484         video_opengles_v2=yes
  2485         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2486         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2487         SUMMARY_video="${SUMMARY_video} opengl_es2"
  2488     fi
  2489 }
  2490 
  2491 CheckEmscriptenGLES()
  2492 {
  2493     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2494         AC_MSG_CHECKING(for EGL support)
  2495         video_opengl_egl=no
  2496         AC_TRY_COMPILE([
  2497          #include <EGL/egl.h>
  2498         ],[
  2499         ],[
  2500         video_opengl_egl=yes
  2501         ])
  2502         AC_MSG_RESULT($video_opengl_egl)
  2503         if test x$video_opengl_egl = xyes; then
  2504             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2505         fi
  2506 
  2507         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2508         video_opengles_v2=no
  2509         AC_TRY_COMPILE([
  2510          #include <GLES2/gl2.h>
  2511          #include <GLES2/gl2ext.h>
  2512         ],[
  2513         ],[
  2514         video_opengles_v2=yes
  2515         ])
  2516         AC_MSG_RESULT($video_opengles_v2)
  2517         if test x$video_opengles_v2 = xyes; then
  2518             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2519             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2520             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2521         fi
  2522     fi
  2523 }
  2524 
  2525 dnl Check to see if Vulkan support is desired
  2526 AC_ARG_ENABLE(video-vulkan,
  2527 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2528               , enable_video_vulkan=yes)
  2529 
  2530 dnl Find Vulkan Header
  2531 CheckVulkan()
  2532 {
  2533     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2534         case "$host" in
  2535             *-*-android*)
  2536                 AC_TRY_COMPILE([
  2537                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2538                   #error Vulkan doesn't work on this configuration
  2539                   #endif
  2540                 ],[
  2541                 ],[
  2542                 ],[
  2543                     enable_video_vulkan=no
  2544                 ])
  2545                 ;;
  2546             *-*-darwin*)
  2547                 save_CFLAGS="$CFLAGS"
  2548                 dnl Work around that we don't have Objective-C support in autoconf
  2549                 CFLAGS="$CFLAGS -x objective-c"
  2550                 AC_TRY_COMPILE([
  2551                   #include <Cocoa/Cocoa.h>
  2552                   #include <Metal/Metal.h>
  2553                   #include <QuartzCore/CAMetalLayer.h>
  2554 
  2555                   #if !TARGET_CPU_X86_64
  2556                   #error Vulkan doesn't work on this configuration
  2557                   #endif
  2558                 ],[
  2559                 ],[
  2560                 ],[
  2561                     enable_video_vulkan=no
  2562                 ])
  2563                 CFLAGS="$save_CFLAGS"
  2564                 ;;
  2565             *)
  2566                 ;;
  2567         esac
  2568         if test x$enable_video_vulkan = xno; then
  2569             # For reasons I am totally unable to see, I get an undefined macro error if
  2570             # I put this in the AC_TRY_COMPILE.
  2571             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2572         fi
  2573     fi
  2574     if test x$enable_video_vulkan = xyes; then
  2575         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2576         SUMMARY_video="${SUMMARY_video} vulkan"
  2577     fi
  2578 }
  2579 
  2580 dnl See if we can use the new unified event interface in Linux 2.4
  2581 CheckInputEvents()
  2582 {
  2583     dnl Check for Linux 2.4 unified input event interface support
  2584         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2585         use_input_events=no
  2586         AC_TRY_COMPILE([
  2587           #include <linux/input.h>
  2588         ],[
  2589           #ifndef EVIOCGNAME
  2590           #error EVIOCGNAME() ioctl not available
  2591           #endif
  2592         ],[
  2593         use_input_events=yes
  2594         ])
  2595         AC_MSG_RESULT($use_input_events)
  2596         if test x$use_input_events = xyes; then
  2597             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2598             SUMMARY_input="${SUMMARY_input} linuxev"
  2599         fi
  2600 }
  2601 
  2602 dnl See if we can use the kernel kd.h header
  2603 CheckInputKD()
  2604 {
  2605 
  2606     AC_MSG_CHECKING(for Linux kd.h)
  2607     use_input_kd=no
  2608     AC_TRY_COMPILE([
  2609       #include <linux/kd.h>
  2610       #include <linux/keyboard.h>
  2611     ],[
  2612         struct kbentry kbe;
  2613         kbe.kb_table = KG_CTRL;
  2614         ioctl(0, KDGKBENT, &kbe);
  2615     ],[
  2616     use_input_kd=yes
  2617     ])
  2618     AC_MSG_RESULT($use_input_kd)
  2619     if test x$use_input_kd = xyes; then
  2620         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2621         SUMMARY_input="${SUMMARY_input} linuxkd"
  2622     fi
  2623 }
  2624 
  2625 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2626 CheckLibUDev()
  2627 {
  2628     AC_ARG_ENABLE(libudev,
  2629 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2630                         , enable_libudev=yes)
  2631     if test x$enable_libudev = xyes; then
  2632         AC_CHECK_HEADER(libudev.h,
  2633                         have_libudev_h_hdr=yes,
  2634                         have_libudev_h_hdr=no)
  2635         if test x$have_libudev_h_hdr = xyes; then
  2636             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2637 
  2638             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2639             if test x$udev_lib != x; then
  2640                 echo "-- dynamic udev -> $udev_lib"
  2641                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2642             fi
  2643         fi
  2644     fi
  2645 }
  2646 
  2647 dnl See if the platform offers libdbus for various IPC techniques.
  2648 CheckDBus()
  2649 {
  2650     AC_ARG_ENABLE(dbus,
  2651 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2652                         , enable_dbus=yes)
  2653     if test x$enable_dbus = xyes; then
  2654         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2655         if test x$PKG_CONFIG != xno; then
  2656             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2657             save_CFLAGS="$CFLAGS"
  2658             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2659             AC_CHECK_HEADER(dbus/dbus.h,
  2660                             have_dbus_dbus_h_hdr=yes,
  2661                             have_dbus_dbus_h_hdr=no)
  2662             CFLAGS="$save_CFLAGS"
  2663             if test x$have_dbus_dbus_h_hdr = xyes; then
  2664                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2665                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2666                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2667             fi
  2668         fi
  2669     fi
  2670 }
  2671 
  2672 dnl See if the platform wanna IME support.
  2673 CheckIME()
  2674 {
  2675     AC_ARG_ENABLE(ime,
  2676 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2677                   , enable_ime=yes)
  2678     if test x$enable_ime = xyes; then
  2679         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2680             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2681     fi
  2682 }
  2683 
  2684 dnl See if the platform has libibus IME support.
  2685 CheckIBus()
  2686 {
  2687     AC_ARG_ENABLE(ibus,
  2688 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2689                   , enable_ibus=yes)
  2690     if test x$enable_ibus = xyes; then
  2691         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2692         if test x$PKG_CONFIG != xno; then
  2693             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2694             save_CFLAGS="$CFLAGS"
  2695             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2696             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2697                             have_ibus_ibus_h_hdr=yes,
  2698                             have_ibus_ibus_h_hdr=no)
  2699             AC_CHECK_HEADER(sys/inotify.h,
  2700                             have_inotify_inotify_h_hdr=yes,
  2701                             have_inotify_inotify_h_hdr=no)
  2702             CFLAGS="$save_CFLAGS"
  2703             if test x$have_ibus_ibus_h_hdr = xyes; then
  2704                 if test x$enable_ime != xyes; then
  2705                     AC_MSG_WARN([IME support is required for IBus.])
  2706                     have_ibus_ibus_h_hdr=no
  2707                 elif test x$enable_dbus != xyes; then
  2708                     AC_MSG_WARN([DBus support is required for IBus.])
  2709                     have_ibus_ibus_h_hdr=no
  2710                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2711                     AC_MSG_WARN([INotify support is required for IBus.])
  2712                     have_ibus_ibus_h_hdr=no
  2713                 else
  2714                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2715                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2716                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2717                fi
  2718             fi
  2719         fi
  2720     fi
  2721 }
  2722 
  2723 dnl See if the platform has fcitx IME support.
  2724 CheckFcitx()
  2725 {
  2726     AC_ARG_ENABLE(fcitx,
  2727 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2728                   , enable_fcitx=yes)
  2729     if test x$enable_fcitx = xyes; then
  2730         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2731         if test x$PKG_CONFIG != xno; then
  2732             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2733             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2734             AC_CHECK_HEADER(fcitx/frontend.h,
  2735                             have_fcitx_frontend_h_hdr=yes,
  2736                             have_fcitx_frontend_h_hdr=no)
  2737             CFLAGS="$save_CFLAGS"
  2738             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2739                 if test x$enable_ime != xyes; then
  2740                     AC_MSG_WARN([IME support is required for fcitx.])
  2741                     have_fcitx_frontend_h_hdr=no
  2742                 elif test x$enable_dbus != xyes; then
  2743                     AC_MSG_WARN([DBus support is required for fcitx.])
  2744                     have_fcitx_frontend_h_hdr=no
  2745                 else
  2746                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2747                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2748                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2749                fi
  2750             fi
  2751         fi
  2752     fi
  2753 }
  2754 
  2755 dnl See if we can use the Touchscreen input library
  2756 CheckTslib()
  2757 {
  2758     AC_ARG_ENABLE(input-tslib,
  2759 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2760                   , enable_input_tslib=yes)
  2761     if test x$enable_input_tslib = xyes; then
  2762         AC_MSG_CHECKING(for Touchscreen library support)
  2763         enable_input_tslib=no
  2764         AC_TRY_COMPILE([
  2765           #include "tslib.h"
  2766         ],[
  2767         ],[
  2768         enable_input_tslib=yes
  2769         ])
  2770         AC_MSG_RESULT($enable_input_tslib)
  2771         if test x$enable_input_tslib = xyes; then
  2772             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2773             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2774             SUMMARY_input="${SUMMARY_input} ts"
  2775         fi
  2776     fi
  2777 }
  2778 
  2779 dnl See what type of thread model to use on Linux and Solaris
  2780 CheckPTHREAD()
  2781 {
  2782     dnl Check for pthread support
  2783     AC_ARG_ENABLE(pthreads,
  2784 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2785                   , enable_pthreads=yes)
  2786     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2787     AC_ARG_ENABLE(pthread-sem,
  2788 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2789                   , enable_pthread_sem=yes)
  2790     case "$host" in
  2791          *-*-android*)
  2792             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2793             pthread_lib=""
  2794             ;;
  2795         *-*-linux*|*-*-uclinux*)
  2796             pthread_cflags="-D_REENTRANT"
  2797             pthread_lib="-lpthread"
  2798             ;;
  2799         *-*-bsdi*)
  2800             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2801             pthread_lib=""
  2802             ;;
  2803         *-*-darwin*)
  2804             pthread_cflags="-D_THREAD_SAFE"
  2805 # causes Carbon.p complaints?
  2806 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2807             ;;
  2808         *-*-freebsd*|*-*-dragonfly*)
  2809             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2810             pthread_lib="-pthread"
  2811             ;;
  2812         *-*-netbsd*)
  2813             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2814             pthread_lib="-lpthread"
  2815             ;;
  2816         *-*-openbsd*)
  2817             pthread_cflags="-D_REENTRANT"
  2818             pthread_lib="-pthread"
  2819             ;;
  2820         *-*-solaris2.9)
  2821             # From Solaris 9+, posix4's preferred name is rt.
  2822             pthread_cflags="-D_REENTRANT"
  2823             pthread_lib="-lpthread -lrt"
  2824             ;;
  2825         *-*-solaris2.10)
  2826             # Solaris 10+ merged pthread into libc.
  2827             pthread_cflags="-D_REENTRANT"
  2828             pthread_lib="-lrt"
  2829             ;;
  2830         *-*-solaris*)
  2831             # Solaris 11+ merged rt into libc.
  2832             pthread_cflags="-D_REENTRANT"
  2833             pthread_lib=""
  2834             ;;
  2835         *-*-sysv5*)
  2836             pthread_cflags="-D_REENTRANT -Kthread"
  2837             pthread_lib=""
  2838             ;;
  2839         *-*-aix*)
  2840             pthread_cflags="-D_REENTRANT -mthreads"
  2841             pthread_lib="-lpthread"
  2842             ;;
  2843         *-*-hpux11*)
  2844             pthread_cflags="-D_REENTRANT"
  2845             pthread_lib="-L/usr/lib -lpthread"
  2846             ;;
  2847         *-*-haiku*)
  2848             pthread_cflags="-D_REENTRANT"
  2849             pthread_lib=""
  2850             ;;
  2851         *-*-nto*)
  2852             pthread_cflags="-D_REENTRANT"
  2853             pthread_lib=""
  2854             ;;
  2855         *)
  2856             pthread_cflags="-D_REENTRANT"
  2857             pthread_lib="-lpthread"
  2858             ;;
  2859     esac
  2860     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2861         # Save the original compiler flags and libraries
  2862         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2863         # Add the pthread compiler flags and libraries
  2864         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2865         # Check to see if we have pthread support on this system
  2866         AC_MSG_CHECKING(for pthreads)
  2867         use_pthreads=no
  2868         AC_TRY_LINK([
  2869          #include <pthread.h>
  2870         ],[
  2871          pthread_attr_t type;
  2872          pthread_attr_init(&type);
  2873         ],[
  2874         use_pthreads=yes
  2875         ])
  2876         AC_MSG_RESULT($use_pthreads)
  2877         # Restore the compiler flags and libraries
  2878         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2879 
  2880         # Do futher testing if we have pthread support...
  2881         if test x$use_pthreads = xyes; then
  2882             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2883             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2884             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2885             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2886 
  2887             # Save the original compiler flags and libraries
  2888             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2889             # Add the pthread compiler flags and libraries
  2890             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2891 
  2892             # Check to see if recursive mutexes are available
  2893             AC_MSG_CHECKING(for recursive mutexes)
  2894             has_recursive_mutexes=no
  2895             if test x$has_recursive_mutexes = xno; then
  2896                 AC_TRY_LINK([
  2897                   #define _GNU_SOURCE 1
  2898                   #include <pthread.h>
  2899                 ],[
  2900                   pthread_mutexattr_t attr;
  2901                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2902                 ],[
  2903                 has_recursive_mutexes=yes
  2904                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2905                 ])
  2906             fi
  2907             if test x$has_recursive_mutexes = xno; then
  2908                 AC_TRY_LINK([
  2909                   #define _GNU_SOURCE 1
  2910                   #include <pthread.h>
  2911                 ],[
  2912                   pthread_mutexattr_t attr;
  2913                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2914                 ],[
  2915                 has_recursive_mutexes=yes
  2916                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2917                 ])
  2918             fi
  2919             AC_MSG_RESULT($has_recursive_mutexes)
  2920 
  2921             # Check to see if pthread semaphore support is missing
  2922             if test x$enable_pthread_sem = xyes; then
  2923                 AC_MSG_CHECKING(for pthread semaphores)
  2924                 have_pthread_sem=no
  2925                 AC_TRY_COMPILE([
  2926                   #include <pthread.h>
  2927                   #include <semaphore.h>
  2928                 ],[
  2929                 ],[
  2930                 have_pthread_sem=yes
  2931                 ])
  2932                 AC_MSG_RESULT($have_pthread_sem)
  2933             fi
  2934             if test x$have_pthread_sem = xyes; then
  2935                 AC_MSG_CHECKING(for sem_timedwait)
  2936                 have_sem_timedwait=no
  2937                 AC_TRY_LINK([
  2938                   #include <pthread.h>
  2939                   #include <semaphore.h>
  2940                 ],[
  2941                   sem_timedwait(NULL, NULL);
  2942                 ],[
  2943                 have_sem_timedwait=yes
  2944                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2945                 ])
  2946                 AC_MSG_RESULT($have_sem_timedwait)
  2947             fi
  2948 
  2949             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2950             if test x$have_pthread_np_h = xyes; then
  2951                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2952             fi
  2953 
  2954             # Check to see if pthread naming is available
  2955             AC_MSG_CHECKING(for pthread_setname_np)
  2956             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2957               has_pthread_setname_np=yes
  2958               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2959             ],[
  2960               has_pthread_setname_np=no
  2961             ])
  2962             AC_MSG_RESULT($has_pthread_setname_np)
  2963 
  2964             AC_MSG_CHECKING(for pthread_set_name_np)
  2965             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2966               has_pthread_set_name_np=yes
  2967               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2968             ],[
  2969               has_pthread_set_name_np=no
  2970             ])
  2971             AC_MSG_RESULT($has_pthread_set_name_np)
  2972 
  2973             # Restore the compiler flags and libraries
  2974             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2975 
  2976             # Basic thread creation functions
  2977             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2978 
  2979             # Semaphores
  2980             # We can fake these with mutexes and condition variables if necessary
  2981             if test x$have_pthread_sem = xyes; then
  2982                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2983             else
  2984                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2985             fi
  2986 
  2987             # Mutexes
  2988             # We can fake these with semaphores if necessary
  2989             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2990 
  2991             # Condition variables
  2992             # We can fake these with semaphores and mutexes if necessary
  2993             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2994 
  2995             # Thread local storage
  2996             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2997 
  2998             have_threads=yes
  2999         fi
  3000     fi
  3001 }
  3002 
  3003 dnl Determine whether the compiler can produce Windows executables
  3004 CheckWINDOWS()
  3005 {
  3006     AC_MSG_CHECKING(Windows compiler)
  3007     have_win32_gcc=no
  3008     AC_TRY_COMPILE([
  3009      #include <windows.h>
  3010     ],[
  3011     ],[
  3012     have_win32_gcc=yes
  3013     ])
  3014     AC_MSG_RESULT($have_win32_gcc)
  3015     if test x$have_win32_gcc != xyes; then
  3016        AC_MSG_ERROR([
  3017 *** Your compiler ($CC) does not produce Windows executables!
  3018        ])
  3019     fi
  3020 
  3021     AC_MSG_CHECKING(Windows CE)
  3022     have_wince=no
  3023     AC_TRY_COMPILE([
  3024 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  3025 #error This is not Windows CE
  3026 #endif
  3027     ],[
  3028     ],[
  3029     have_wince=yes
  3030        AC_MSG_ERROR([
  3031 *** Sorry, Windows CE is no longer supported.
  3032        ])
  3033     ])
  3034     AC_MSG_RESULT($have_wince)
  3035 
  3036     # This fixes Windows stack alignment with newer GCC
  3037     CheckStackBoundary
  3038 }
  3039 
  3040 dnl Find the DirectX includes and libraries
  3041 CheckDIRECTX()
  3042 {
  3043     AC_ARG_ENABLE(directx,
  3044 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  3045                   , enable_directx=yes)
  3046     if test x$enable_directx = xyes; then
  3047         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  3048         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  3049         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  3050         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  3051         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  3052         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  3053         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  3054         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  3055         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  3056         AC_TRY_COMPILE([
  3057 #include <windows.h>
  3058 #include <xinput.h>
  3059 XINPUT_GAMEPAD_EX x1;
  3060         ],[],[have_xinput_gamepadex=yes])
  3061         AC_TRY_COMPILE([
  3062 #include <windows.h>
  3063 #include <xinput.h>
  3064 XINPUT_STATE_EX s1;
  3065         ],[],[have_xinput_stateex=yes])
  3066 
  3067         if test x$have_ddraw = xyes; then
  3068             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  3069         fi
  3070         if test x$have_dinput = xyes; then
  3071             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3072         fi
  3073         if test x$have_dsound = xyes; then
  3074             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3075         fi
  3076         if test x$have_dxgi = xyes; then
  3077             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3078         fi
  3079         if test x$have_xinput = xyes; then
  3080             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3081         fi
  3082         if test x$have_xinput_gamepadex = xyes; then
  3083             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3084         fi
  3085         if test x$have_xinput_stateex = xyes; then
  3086             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3087         fi
  3088 
  3089         SUMMARY_video="${SUMMARY_video} directx"
  3090         SUMMARY_audio="${SUMMARY_audio} directx"
  3091 
  3092         AC_ARG_ENABLE(wasapi,
  3093 AC_HELP_STRING([--enable-wasapi], [use the Windows WASAPI audio driver [[default=yes]]]),
  3094                                 , enable_wasapi=yes)
  3095 
  3096         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3097         # FIXME:  ...so force it off for now.
  3098         case "$host" in
  3099             *-*-cygwin*)
  3100             have_dinput=false
  3101             ;;
  3102         esac
  3103     fi
  3104 }
  3105 
  3106 dnl Check for the dlfcn.h interface for dynamically loading objects
  3107 CheckDLOPEN()
  3108 {
  3109     AC_ARG_ENABLE(sdl-dlopen,
  3110 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3111                   , enable_sdl_dlopen=yes)
  3112     if test x$enable_sdl_dlopen = xyes; then
  3113         AC_MSG_CHECKING(for dlopen)
  3114         have_dlopen=no
  3115         AC_TRY_COMPILE([
  3116          #include <dlfcn.h>
  3117         ],[
  3118          void *handle = dlopen("", RTLD_NOW);
  3119          const char *loaderror = (char *) dlerror();
  3120         ],[
  3121         have_dlopen=yes
  3122         ])
  3123         AC_MSG_RESULT($have_dlopen)
  3124 
  3125         if test x$have_dlopen = xyes; then
  3126             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3127                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3128                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3129             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3130             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3131             have_loadso=yes
  3132         fi
  3133     fi
  3134 }
  3135 
  3136 dnl Check for the usbhid(3) library on *BSD
  3137 CheckUSBHID()
  3138 {
  3139     case "$host" in
  3140         *-*-*bsd*)
  3141             if test x$enable_joystick = xyes; then
  3142                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3143                 if test x$have_libusbhid = xyes; then
  3144                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3145                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3146                     USB_LIBS="$USB_LIBS -lusbhid"
  3147                 else
  3148                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3149                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3150                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3151                 fi
  3152                     
  3153                 save_CFLAGS="$CFLAGS"
  3154                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3155 
  3156                 AC_MSG_CHECKING(for usbhid)
  3157                 have_usbhid=no
  3158                 AC_TRY_COMPILE([
  3159                   #include <sys/types.h>
  3160                   #if defined(HAVE_USB_H)
  3161                   #include <usb.h>
  3162                   #endif
  3163                   #ifdef __DragonFly__
  3164                   # include <bus/usb/usb.h>
  3165                   # include <bus/usb/usbhid.h>
  3166                   #else
  3167                   # include <dev/usb/usb.h>
  3168                   # include <dev/usb/usbhid.h>
  3169                   #endif
  3170                   #if defined(HAVE_USBHID_H)
  3171                   #include <usbhid.h>
  3172                   #elif defined(HAVE_LIBUSB_H)
  3173                   #include <libusb.h>
  3174                   #elif defined(HAVE_LIBUSBHID_H)
  3175                   #include <libusbhid.h>
  3176                   #endif
  3177                 ],[
  3178                   struct report_desc *repdesc;
  3179                   struct usb_ctl_report *repbuf;
  3180                   hid_kind_t hidkind;
  3181                 ],[
  3182                 have_usbhid=yes
  3183                 ])
  3184                 AC_MSG_RESULT($have_usbhid)
  3185 
  3186                 if test x$have_usbhid = xyes; then
  3187                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3188                     have_usbhid_ucr_data=no
  3189                     AC_TRY_COMPILE([
  3190                       #include <sys/types.h>
  3191                       #if defined(HAVE_USB_H)
  3192                       #include <usb.h>
  3193                       #endif
  3194                       #ifdef __DragonFly__
  3195                       # include <bus/usb/usb.h>
  3196                       # include <bus/usb/usbhid.h>
  3197                       #else
  3198                       # include <dev/usb/usb.h>
  3199                       # include <dev/usb/usbhid.h>
  3200                       #endif
  3201                       #if defined(HAVE_USBHID_H)
  3202                       #include <usbhid.h>
  3203                       #elif defined(HAVE_LIBUSB_H)
  3204                       #include <libusb.h>
  3205                       #elif defined(HAVE_LIBUSBHID_H)
  3206                       #include <libusbhid.h>
  3207                       #endif
  3208                     ],[
  3209                       struct usb_ctl_report buf;
  3210                       if (buf.ucr_data) { }
  3211                     ],[
  3212                     have_usbhid_ucr_data=yes
  3213                     ])
  3214                     if test x$have_usbhid_ucr_data = xyes; then
  3215                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3216                     fi
  3217                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3218                     
  3219                     AC_MSG_CHECKING(for new usbhid API)
  3220                     have_usbhid_new=no
  3221                     AC_TRY_COMPILE([
  3222                       #include <sys/types.h>
  3223                       #if defined(HAVE_USB_H)
  3224                       #include <usb.h>
  3225                       #endif
  3226                       #ifdef __DragonFly__
  3227                       #include <bus/usb/usb.h>
  3228                       #include <bus/usb/usbhid.h>
  3229                       #else
  3230                       #include <dev/usb/usb.h>
  3231                       #include <dev/usb/usbhid.h>
  3232                       #endif
  3233                       #if defined(HAVE_USBHID_H)
  3234                       #include <usbhid.h>
  3235                       #elif defined(HAVE_LIBUSB_H)
  3236                       #include <libusb.h>
  3237                       #elif defined(HAVE_LIBUSBHID_H)
  3238                       #include <libusbhid.h>
  3239                       #endif
  3240                     ],[
  3241                       report_desc_t d;
  3242                       hid_start_parse(d, 1, 1);
  3243                     ],[
  3244                     have_usbhid_new=yes
  3245                     ])
  3246                     if test x$have_usbhid_new = xyes; then
  3247                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3248                     fi
  3249                     AC_MSG_RESULT($have_usbhid_new)
  3250 
  3251                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3252                     have_machine_joystick=no
  3253                     AC_TRY_COMPILE([
  3254                       #include <machine/joystick.h>
  3255                     ],[
  3256                       struct joystick t;
  3257                     ],[
  3258                     have_machine_joystick=yes
  3259                     ])
  3260                     if test x$have_machine_joystick = xyes; then
  3261                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3262                     fi
  3263                     AC_MSG_RESULT($have_machine_joystick)
  3264 
  3265                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3266                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3267                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3268                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3269                     have_joystick=yes
  3270                 fi
  3271                 CFLAGS="$save_CFLAGS"
  3272             fi
  3273         ;;
  3274     esac
  3275 }
  3276 
  3277 dnl Check for HIDAPI joystick drivers
  3278 CheckHIDAPI()
  3279 {
  3280     # The hidraw support doesn't catch Xbox, PS4 and Nintendo controllers,
  3281     # so we'll just use libusb when it's available.
  3282     #
  3283     # Except that libusb requires root permissions to open devices, so that's not generally useful, and we'll disable this by default.
  3284     AC_ARG_ENABLE(hidapi,
  3285 AC_HELP_STRING([--enable-hidapi], [use HIDAPI for low level joystick drivers [[default=no]]]),
  3286                   , enable_hidapi=no)
  3287     if test x$enable_joystick = xyes -a x$enable_hidapi = xyes; then
  3288         hidapi_support=no
  3289         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  3290         if test x$PKG_CONFIG != xno; then
  3291             LIBUSB_CFLAGS=`$PKG_CONFIG --cflags libusb-1.0`
  3292             LIBUSB_LDFLAGS=`$PKG_CONFIG --libs libusb-1.0`
  3293             save_CFLAGS="$CFLAGS"
  3294             CFLAGS="$save_CFLAGS $LIBUSB_CFLAGS"
  3295             AC_CHECK_HEADER(libusb.h, have_libusb_h=yes)
  3296             CFLAGS="$save_CFLAGS"
  3297         fi
  3298         if test x$have_libusb_h = xyes; then
  3299             hidapi_support=yes
  3300             AC_DEFINE(SDL_JOYSTICK_HIDAPI, 1, [ ])
  3301             EXTRA_CFLAGS="$EXTRA_CFLAGS -I$srcdir/src/hidapi/hidapi"
  3302             SOURCES="$SOURCES $srcdir/src/joystick/hidapi/*.c"
  3303             SOURCES="$SOURCES $srcdir/src/hidapi/libusb/hid.c"
  3304             EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBUSB_CFLAGS"
  3305             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBUSB_LDFLAGS"
  3306         fi
  3307         AC_MSG_CHECKING(for hidapi support)
  3308         AC_MSG_RESULT($hidapi_support)
  3309     fi
  3310 }
  3311 
  3312 dnl Check for clock_gettime()
  3313 CheckClockGettime()
  3314 {
  3315     AC_ARG_ENABLE(clock_gettime,
  3316 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3317                   , enable_clock_gettime=yes)
  3318     if test x$enable_clock_gettime = xyes; then
  3319         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3320         if test x$have_clock_gettime = xyes; then
  3321             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3322             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3323         else
  3324             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3325             if test x$have_clock_gettime = xyes; then
  3326                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3327                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3328             fi
  3329         fi
  3330     fi
  3331 }
  3332 
  3333 dnl Check for a valid linux/version.h
  3334 CheckLinuxVersion()
  3335 {
  3336     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3337     if test x$have_linux_version_h = xyes; then
  3338         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3339     fi
  3340 }
  3341 
  3342 dnl Check if we want to use RPATH
  3343 CheckRPATH()
  3344 {
  3345     AC_ARG_ENABLE(rpath,
  3346 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3347                   , enable_rpath=yes)
  3348 }
  3349 
  3350 dnl Do this on all platforms, before everything else (other things might want to override it).
  3351 CheckWarnAll
  3352 
  3353 dnl Set up the configuration based on the host platform!
  3354 case "$host" in
  3355     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3356         case "$host" in
  3357             *-*-android*)
  3358                 # Android
  3359                 ARCH=android
  3360                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3361                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3362                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3363                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3364                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3365                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3366 
  3367                 if test x$enable_video = xyes; then
  3368                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3369                     # FIXME: confdefs? Not AC_DEFINE?
  3370                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3371                     SUMMARY_video="${SUMMARY_video} android"
  3372                 fi
  3373                 ;;
  3374             *-*-linux*)         ARCH=linux ;;
  3375             *-*-uclinux*)       ARCH=linux ;;
  3376             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3377             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3378             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3379             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3380             *-*-bsdi*)          ARCH=bsdi ;;
  3381             *-*-freebsd*)       ARCH=freebsd ;;
  3382             *-*-dragonfly*)     ARCH=freebsd ;;
  3383             *-*-netbsd*)        ARCH=netbsd ;;
  3384             *-*-openbsd*)       ARCH=openbsd ;;
  3385             *-*-sysv5*)         ARCH=sysv5 ;;
  3386             *-*-solaris*)       ARCH=solaris ;;
  3387             *-*-hpux*)          ARCH=hpux ;;
  3388             *-*-aix*)           ARCH=aix ;;
  3389             *-*-minix*)         ARCH=minix ;;
  3390             *-*-nto*)           ARCH=nto
  3391                 CheckQNXVideo
  3392                 ;;
  3393         esac
  3394         CheckVisibilityHidden
  3395         CheckDeclarationAfterStatement
  3396         CheckDummyVideo
  3397         CheckDiskAudio
  3398         CheckDummyAudio
  3399         CheckDLOPEN
  3400         CheckOSS
  3401         CheckALSA
  3402         CheckPulseAudio
  3403         CheckJACK
  3404         CheckARTSC
  3405         CheckESD
  3406         CheckNAS
  3407         CheckSNDIO
  3408         CheckFusionSound
  3409         CheckLibSampleRate
  3410         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3411         CheckRPI
  3412         CheckX11
  3413         CheckDirectFB
  3414         CheckKMSDRM
  3415         CheckOpenGLX11
  3416         CheckOpenGLESX11
  3417         CheckVulkan
  3418         CheckMir
  3419         CheckWayland
  3420         CheckLibUDev
  3421         CheckDBus
  3422         CheckIME
  3423         CheckIBus
  3424         CheckFcitx
  3425         case $ARCH in
  3426           linux)
  3427               CheckInputEvents
  3428               CheckInputKD
  3429           ;;
  3430         esac
  3431         CheckTslib
  3432         CheckUSBHID
  3433         CheckHIDAPI
  3434         CheckPTHREAD
  3435         CheckClockGettime
  3436         CheckLinuxVersion
  3437         CheckRPATH
  3438         CheckVivanteVideo
  3439 
  3440         # Set up files for the audio library
  3441         if test x$enable_audio = xyes; then
  3442           case $ARCH in
  3443             sysv5|solaris|hpux)
  3444                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3445                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3446                 SUMMARY_audio="${SUMMARY_audio} sun"
  3447                 have_audio=yes
  3448             ;;
  3449             netbsd)  # Don't use this on OpenBSD, it's busted.
  3450                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3451                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3452                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3453                 have_audio=yes
  3454             ;;
  3455             aix)
  3456                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3457                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3458                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3459                 have_audio=yes
  3460             ;;
  3461             android)
  3462                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3463                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3464                 SUMMARY_audio="${SUMMARY_audio} android"
  3465                 have_audio=yes
  3466             ;;
  3467             nto)
  3468                 CheckQNXAudio
  3469             ;;
  3470           esac
  3471         fi
  3472         # Set up files for the joystick library
  3473         if test x$enable_joystick = xyes; then
  3474           case $ARCH in
  3475             linux)
  3476                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3477                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3478                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3479                 have_joystick=yes
  3480             ;;
  3481             android)
  3482                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3483                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3484                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3485                 have_joystick=yes
  3486             ;;
  3487           esac
  3488         fi
  3489         # Set up files for the haptic library
  3490         if test x$enable_haptic = xyes; then
  3491           case $ARCH in
  3492             linux)
  3493                 if test x$use_input_events = xyes; then
  3494                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3495                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3496                     have_haptic=yes
  3497                 fi
  3498             ;;
  3499             android)
  3500                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3501                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3502                 have_haptic=yes
  3503             ;;
  3504           esac
  3505         fi
  3506         # Set up files for the power library
  3507         if test x$enable_power = xyes; then
  3508              case $ARCH in
  3509                linux)
  3510                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3511                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3512                    have_power=yes
  3513                ;;
  3514                android)
  3515                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3516                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3517                    have_power=yes
  3518                ;;
  3519              esac
  3520         fi
  3521         # Set up files for the filesystem library
  3522         if test x$enable_filesystem = xyes; then
  3523              case $ARCH in
  3524                android)
  3525                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3526                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3527                    have_filesystem=yes
  3528                ;;
  3529                *)
  3530                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3531                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3532                    have_filesystem=yes
  3533                ;;
  3534              esac
  3535         fi
  3536         # Set up files for the timer library
  3537         if test x$enable_timers = xyes; then
  3538             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3539             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3540             have_timers=yes
  3541         fi
  3542         # Set up files for udev hotplugging support
  3543         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3544             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3545         fi
  3546         # Set up files for evdev input
  3547         if test x$use_input_events = xyes; then
  3548             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3549         fi       
  3550         # Set up other core UNIX files
  3551         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3552         ;;
  3553     *-*-cygwin* | *-*-mingw32*)
  3554         ARCH=win32
  3555         if test "$build" != "$host"; then # cross-compiling
  3556             # Default cross-compile location
  3557             ac_default_prefix=/usr/local/cross-tools/$host
  3558         else
  3559             # Look for the location of the tools and install there
  3560             if test "$BUILD_PREFIX" != ""; then
  3561                 ac_default_prefix=$BUILD_PREFIX
  3562             fi
  3563         fi
  3564         CheckDeclarationAfterStatement
  3565         CheckDummyVideo
  3566         CheckDiskAudio
  3567         CheckDummyAudio
  3568         CheckWINDOWS
  3569         CheckWINDOWSGL
  3570         CheckWINDOWSGLES
  3571         CheckVulkan
  3572         CheckDIRECTX
  3573 
  3574         # Set up the core platform files
  3575         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3576 
  3577         # Set up files for the video library
  3578         if test x$enable_video = xyes; then
  3579             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3580             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3581             have_video=yes
  3582             AC_ARG_ENABLE(render-d3d,
  3583 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3584                                 , enable_render_d3d=yes)
  3585             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3586                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3587             fi
  3588             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3589                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3590             fi
  3591         fi
  3592         # Set up files for the audio library
  3593         if test x$enable_audio = xyes; then
  3594             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3595             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3596             if test x$have_dsound = xyes; then
  3597                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3598                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3599             fi
  3600             if test x$have_wasapi = xyes -a x$enable_wasapi = xyes; then
  3601                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3602                 SUMMARY_audio="${SUMMARY_audio} wasapi"
  3603                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3604             fi
  3605             have_audio=yes
  3606         fi
  3607         # Set up files for the joystick library
  3608         if test x$enable_joystick = xyes; then
  3609             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3610                 if test x$have_xinput = xyes; then
  3611                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3612                 fi
  3613                 if test x$have_dinput = xyes; then
  3614                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3615                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3616                 fi
  3617             else
  3618                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3619             fi
  3620             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3621             have_joystick=yes
  3622         fi
  3623         if test x$enable_haptic = xyes; then
  3624             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3625                 if test x$have_xinput = xyes; then
  3626                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3627                 fi
  3628                 if test x$have_dinput = xyes; then
  3629                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3630                 fi
  3631                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3632                 have_haptic=yes
  3633             fi
  3634         fi
  3635         if test x$enable_power = xyes; then
  3636             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3637             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3638             have_power=yes
  3639         fi
  3640         if test x$enable_filesystem = xyes; then
  3641             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3642             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3643             have_filesystem=yes
  3644         fi
  3645         # Set up files for the thread library
  3646         if test x$enable_threads = xyes; then
  3647             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3648             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3649             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3650             have_threads=yes
  3651         fi
  3652         # Set up files for the timer library
  3653         if test x$enable_timers = xyes; then
  3654             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3655             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3656             have_timers=yes
  3657         fi
  3658         # Set up files for the shared object loading library
  3659         if test x$enable_loadso = xyes; then
  3660             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3661             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3662             have_loadso=yes
  3663         fi
  3664         # Set up the system libraries we need
  3665         if test -f /lib/w32api/libuuid.a; then
  3666             LIBUUID=/lib/w32api/libuuid.a
  3667         else
  3668             LIBUUID=-luuid
  3669         fi
  3670         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3671         # The Windows platform requires special setup
  3672         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3673         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3674         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3675         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3676 
  3677         # Check to see if this is a mingw or cygwin build
  3678         have_mingw32=
  3679         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3680         if test x$have_mingw32 = xyes; then
  3681             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3682         else
  3683             SDL_LIBS="-lcygwin $SDL_LIBS"
  3684         fi
  3685         ;;
  3686 
  3687     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3688     *-*-beos*)
  3689         AC_MSG_ERROR([
  3690 *** BeOS support has been removed as of SDL 2.0.2.
  3691         ])
  3692         ;;
  3693 
  3694     *-*-haiku*)
  3695         ARCH=haiku
  3696         ac_default_prefix=/boot/system
  3697         CheckDummyVideo
  3698         CheckDiskAudio
  3699         CheckDummyAudio
  3700         CheckDLOPEN
  3701         CheckHaikuVideo
  3702         CheckHaikuGL
  3703         CheckPTHREAD
  3704 
  3705         # Set up files for the audio library
  3706         if test x$enable_audio = xyes; then
  3707             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3708             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3709             SUMMARY_audio="${SUMMARY_audio} haiku"
  3710             have_audio=yes
  3711         fi
  3712         # Set up files for the joystick library
  3713         if test x$enable_joystick = xyes; then
  3714             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3715             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3716             have_joystick=yes
  3717         fi
  3718         # Set up files for the timer library
  3719         if test x$enable_timers = xyes; then
  3720             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3721             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3722             have_timers=yes
  3723         fi
  3724         # Set up files for the system power library
  3725         if test x$enable_power = xyes; then
  3726             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3727             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3728             have_power=yes
  3729         fi
  3730         # Set up files for the system filesystem library
  3731         if test x$enable_filesystem = xyes; then
  3732             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3733             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3734             have_filesystem=yes
  3735         fi
  3736         # The Haiku platform requires special setup.
  3737         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3738         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3739         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3740         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3741         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3742         ;;
  3743     arm*-apple-darwin*|*-ios-*)
  3744         ARCH=ios
  3745 
  3746         CheckVisibilityHidden
  3747         CheckDeclarationAfterStatement
  3748         CheckDummyVideo
  3749         CheckDiskAudio
  3750         CheckDummyAudio
  3751         CheckDLOPEN
  3752         CheckMETAL
  3753         CheckVulkan
  3754         CheckPTHREAD
  3755 
  3756         # Set up files for the audio library
  3757         if test x$enable_audio = xyes; then
  3758             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3759             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3760             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3761             have_audio=yes
  3762         fi
  3763         # Set up files for the joystick library
  3764         if test x$enable_joystick = xyes; then
  3765             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3766             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3767             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3768             have_joystick=yes
  3769         fi
  3770         # Set up files for the haptic library
  3771         #if test x$enable_haptic = xyes; then
  3772         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3773         #    have_haptic=yes
  3774         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3775         #fi
  3776         # Set up files for the power library
  3777         if test x$enable_power = xyes; then
  3778             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3779             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3780             have_power=yes
  3781         fi
  3782         # Set up files for the filesystem library
  3783         if test x$enable_filesystem = xyes; then
  3784             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3785             have_filesystem=yes
  3786         fi
  3787         # Set up additional files for the file library
  3788         if test x$enable_file = xyes; then
  3789             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3790             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3791         fi
  3792         # Set up files for the timer library
  3793         if test x$enable_timers = xyes; then
  3794             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3795             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3796             have_timers=yes
  3797         fi
  3798         # Set up other core UNIX files
  3799         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3800         # The iOS platform requires special setup.
  3801         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3802         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3803         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3804         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3805         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3806         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3807         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3808         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3809         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3810         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3811         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3812         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3813         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3814         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3815         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3816         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3817         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3818 
  3819         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3820             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Metal"
  3821         fi
  3822         ;;
  3823     *-*-darwin* )
  3824         # This could be either full "Mac OS X", or plain "Darwin" which is
  3825         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3826         # Next line is broken, and a few files below require Mac OS X (full)
  3827         ARCH=macosx
  3828 
  3829         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3830         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3831         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3832 
  3833         CheckVisibilityHidden
  3834         CheckDeclarationAfterStatement
  3835         CheckDummyVideo
  3836         CheckDiskAudio
  3837         CheckDummyAudio
  3838         CheckDLOPEN
  3839         CheckCOCOA
  3840         CheckMETAL
  3841         CheckX11
  3842         CheckMacGL
  3843         CheckMacGLES
  3844         CheckOpenGLX11
  3845         CheckVulkan
  3846         CheckPTHREAD
  3847 
  3848         # Set up files for the audio library
  3849         if test x$enable_audio = xyes; then
  3850             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3851             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3852             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3853             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3854             have_audio=yes
  3855         fi
  3856         # Set up files for the joystick library
  3857         if test x$enable_joystick = xyes; then
  3858             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3859             AC_DEFINE(SDL_JOYSTICK_HIDAPI, 1, [ ])
  3860             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3861             SOURCES="$SOURCES $srcdir/src/joystick/hidapi/*.c"
  3862             SOURCES="$SOURCES $srcdir/src/hidapi/mac/hid.c"
  3863             EXTRA_CFLAGS="$EXTRA_CFLAGS -I$srcdir/src/hidapi/hidapi"
  3864             have_joystick=yes
  3865         fi
  3866         # Set up files for the haptic library
  3867         if test x$enable_haptic = xyes; then
  3868             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3869             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3870             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3871             have_haptic=yes
  3872         fi
  3873         # Set up files for the power library
  3874         if test x$enable_power = xyes; then
  3875             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3876             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3877             have_power=yes
  3878         fi
  3879         # Set up files for the filesystem library
  3880         if test x$enable_filesystem = xyes; then
  3881             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3882             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3883             have_filesystem=yes
  3884         fi
  3885         # Set up files for the timer library
  3886         if test x$enable_timers = xyes; then
  3887             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3888             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3889             have_timers=yes
  3890         fi
  3891         # Set up additional files for the file library
  3892         if test x$enable_file = xyes; then
  3893             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3894         fi
  3895         # Set up other core UNIX files
  3896         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3897         # The Mac OS X platform requires special setup.
  3898         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3899         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3900         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3901         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3902         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3903 
  3904         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3905             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
  3906         fi
  3907         ;;
  3908     *-nacl|*-pnacl)
  3909         ARCH=nacl
  3910         CheckNativeClient
  3911         CheckDummyAudio
  3912         CheckDummyVideo
  3913         CheckInputEvents
  3914         CheckPTHREAD
  3915         
  3916         # Set up files for the timer library
  3917         if test x$enable_timers = xyes; then
  3918             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3919             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3920             have_timers=yes
  3921         fi
  3922         
  3923         if test x$enable_filesystem = xyes; then
  3924             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3925             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3926             have_filesystem=yes
  3927         fi
  3928         ;;
  3929     *-*-emscripten* )
  3930         if test x$enable_video = xyes; then
  3931             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3932             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3933             have_video=yes
  3934             SUMMARY_video="${SUMMARY_video} emscripten"
  3935         fi
  3936 
  3937         if test x$enable_audio = xyes; then
  3938             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3939             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3940             have_audio=yes
  3941             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3942         fi
  3943 
  3944         CheckVisibilityHidden
  3945         CheckDeclarationAfterStatement
  3946         CheckDummyVideo
  3947         CheckDiskAudio
  3948         CheckDummyAudio
  3949         CheckDLOPEN
  3950         CheckClockGettime
  3951         CheckEmscriptenGLES
  3952 
  3953          # Set up files for the power library
  3954         if test x$enable_power = xyes; then
  3955             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3956             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3957             have_power=yes
  3958         fi
  3959         
  3960         # Set up files for the power library
  3961         if test x$enable_joystick = xyes; then
  3962             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3963             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3964             have_joystick=yes
  3965         fi
  3966 
  3967         # Set up files for the filesystem library
  3968         if test x$enable_filesystem = xyes; then
  3969             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3970             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3971             have_filesystem=yes
  3972         fi
  3973         # Set up files for the timer library
  3974         if test x$enable_timers = xyes; then
  3975             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3976             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3977             have_timers=yes
  3978         fi
  3979         ;;
  3980     *)
  3981         AC_MSG_ERROR([
  3982 *** Unsupported host:  Please add to configure.in
  3983         ])
  3984         ;;
  3985 esac
  3986 
  3987 # Verify that we have all the platform specific files we need
  3988 
  3989 if test x$have_joystick != xyes; then
  3990     if test x$enable_joystick = xyes; then
  3991         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3992     fi
  3993     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3994 fi
  3995 if test x$have_haptic != xyes; then
  3996     if test x$enable_haptic = xyes; then
  3997         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3998     fi
  3999     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  4000 fi
  4001 if test x$have_threads != xyes; then
  4002     if test x$enable_threads = xyes; then
  4003         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  4004     fi
  4005     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  4006 fi
  4007 if test x$have_timers != xyes; then
  4008     if test x$enable_timers = xyes; then
  4009         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  4010     fi
  4011     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  4012 fi
  4013 if test x$have_filesystem != xyes; then
  4014     if test x$enable_filesystem = xyes; then
  4015         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  4016     fi
  4017     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  4018 fi
  4019 if test x$have_loadso != xyes; then
  4020     if test x$enable_loadso = xyes; then
  4021         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  4022     fi
  4023     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  4024 fi
  4025 if test x$SDLMAIN_SOURCES = x; then
  4026     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  4027 fi
  4028 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  4029 
  4030 if test x$video_wayland = xyes; then
  4031     WAYLAND_PROTOCOLS=`cd $srcdir/wayland-protocols ; for p in *.xml ; do echo -n "\$p" |sed 's,\\.xml\$, ,g' ; done`
  4032     WAYLAND_PROTOCOLS_SOURCES=`for p in $WAYLAND_PROTOCOLS ; do echo -n "\\$(gen)/\$p-protocol.c " ; done`
  4033     WAYLAND_PROTOCOLS_HEADERS=`for p in $WAYLAND_PROTOCOLS ; do echo -n "\\$(gen)/\$p-client-protocol.h " ; done`
  4034     GEN_SOURCES="$GEN_SOURCES $WAYLAND_PROTOCOLS_SOURCES"
  4035     GEN_HEADERS="$GEN_HEADERS $WAYLAND_PROTOCOLS_HEADERS"
  4036 
  4037     WAYLAND_PROTOCOLS_DEPENDS=`for p in $WAYLAND_PROTOCOLS ; do\
  4038         echo ;\
  4039         echo "\\$(gen)/\$p-client-protocol.h: \\$(srcdir)/wayland-protocols/\$p.xml" ;\
  4040         echo "	@\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)" ;\
  4041         echo "	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@" ;\
  4042         echo ;\
  4043         echo "\\$(gen)/\$p-protocol.c: \\$(srcdir)/wayland-protocols/\$p.xml" ;\
  4044         echo "	@\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)" ;\
  4045         echo "	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@" ;\
  4046         echo ;\
  4047         echo "\\$(objects)/\$p-protocol.lo: \\$(gen)/\$p-protocol.c \\$(gen)/\$p-client-protocol.h" ;\
  4048         echo "	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@" ;\
  4049         done ;\
  4050         echo ;\
  4051         for s in $WAYLAND_SOURCES ; do echo -n "\$s:" ; for p in $WAYLAND_PROTOCOLS ; do echo -n " \\$(gen)/\$p-client-protocol.h" ; done ; echo ; done ; echo`
  4052 fi
  4053 
  4054 OBJECTS=`echo $SOURCES`
  4055 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  4056 for EXT in asm cc m c S; do
  4057     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  4058     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  4059 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  4060 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4061 done
  4062 
  4063 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4064 
  4065 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  4066 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  4067 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  4068 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  4069 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  4070 	\\$(WINDRES) \\$< \\$@,g"`
  4071 
  4072 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  4073 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  4074 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4075 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4076 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4077 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4078 
  4079 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  4080 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  4081 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4082 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4083 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4084 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4085 
  4086 # Set runtime shared library paths as needed
  4087 
  4088 if test "x$enable_rpath" = "xyes"; then
  4089   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  4090     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  4091 
  4092     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  4093     have_enable_new_dtags=no
  4094     save_LDFLAGS="$LDFLAGS"
  4095     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  4096     AC_TRY_LINK([
  4097     ],[
  4098     ],[
  4099     have_enable_new_dtags=yes
  4100     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4101     ])
  4102     LDFLAGS="$save_LDFLAGS"
  4103     AC_MSG_RESULT($have_enable_new_dtags)
  4104   fi
  4105   if test $ARCH = solaris; then
  4106     SDL_RLD_FLAGS="-R\${libdir}"
  4107   fi
  4108 else
  4109   SDL_RLD_FLAGS=""
  4110 fi
  4111 
  4112 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4113 
  4114 dnl Expand the cflags and libraries needed by apps using SDL
  4115 AC_SUBST(SDL_CFLAGS)
  4116 AC_SUBST(SDL_LIBS)
  4117 AC_SUBST(SDL_STATIC_LIBS)
  4118 AC_SUBST(SDL_RLD_FLAGS)
  4119 if test x$enable_shared = xyes; then
  4120     ENABLE_SHARED_TRUE=
  4121     ENABLE_SHARED_FALSE="#"
  4122 else
  4123     ENABLE_SHARED_TRUE="#"
  4124     ENABLE_SHARED_FALSE=
  4125 fi
  4126 if test x$enable_static = xyes; then
  4127     ENABLE_STATIC_TRUE=
  4128     ENABLE_STATIC_FALSE="#"
  4129 else
  4130     ENABLE_STATIC_TRUE="#"
  4131     ENABLE_STATIC_FALSE=
  4132 fi
  4133 AC_SUBST(ENABLE_SHARED_TRUE)
  4134 AC_SUBST(ENABLE_SHARED_FALSE)
  4135 AC_SUBST(ENABLE_STATIC_TRUE)
  4136 AC_SUBST(ENABLE_STATIC_FALSE)
  4137 
  4138 dnl Expand the sources and objects needed to build the library
  4139 AC_SUBST(ac_aux_dir)
  4140 AC_SUBST(INCLUDE)
  4141 AC_SUBST(OBJECTS)
  4142 AC_SUBST(GEN_HEADERS)
  4143 AC_SUBST(GEN_OBJECTS)
  4144 AC_SUBST(VERSION_OBJECTS)
  4145 AC_SUBST(SDLMAIN_OBJECTS)
  4146 AC_SUBST(SDLTEST_OBJECTS)
  4147 AC_SUBST(BUILD_CFLAGS)
  4148 AC_SUBST(EXTRA_CFLAGS)
  4149 AC_SUBST(BUILD_LDFLAGS)
  4150 AC_SUBST(EXTRA_LDFLAGS)
  4151 AC_SUBST(WINDRES)
  4152 AC_SUBST(WAYLAND_SCANNER)
  4153 
  4154 cat >Makefile.rules <<__EOF__
  4155 
  4156 # Build rules for objects
  4157 -include \$(OBJECTS:.lo=.d)
  4158 
  4159 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4160 $srcdir/src/SDL.c: update-revision
  4161 $DEPENDS
  4162 $VERSION_DEPENDS
  4163 $SDLMAIN_DEPENDS
  4164 $SDLTEST_DEPENDS
  4165 $WAYLAND_PROTOCOLS_DEPENDS
  4166 __EOF__
  4167 
  4168 AC_CONFIG_FILES([
  4169     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4170 ])
  4171 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4172 
  4173 SUMMARY="SDL2 Configure Summary:\n"
  4174 if test x$enable_shared = xyes; then
  4175     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4176 fi
  4177 if test x$enable_static = xyes; then
  4178     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4179 fi
  4180 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4181 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4182 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4183 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4184 if test x$have_x = xyes; then
  4185     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4186 fi
  4187 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4188 if test x$have_samplerate_h_hdr = xyes; then
  4189     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4190 else
  4191     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4192 fi
  4193 if test x$have_libudev_h_hdr = xyes; then
  4194     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4195 else
  4196     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4197 fi
  4198 if test x$have_dbus_dbus_h_hdr = xyes; then
  4199     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4200 else
  4201     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4202 fi
  4203 if test x$enable_ime = xyes; then
  4204     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4205 else
  4206     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4207 fi
  4208 if test x$have_ibus_ibus_h_hdr = xyes; then
  4209     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4210 else
  4211     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4212 fi
  4213 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4214     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4215 else
  4216     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4217 fi
  4218 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4219 
  4220 AC_OUTPUT