configure.in
author Sam Lantinga <slouken@libsdl.org>
Mon, 11 Dec 2017 12:00:12 -0800
changeset 11762 c4900725a75a
parent 11736 e54b6d8ffca8
child 11808 510c0e047122
permissions -rw-r--r--
Check for immintrin.h before using it in SDL_cpuinfo.h
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README.txt)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_CONFIG_AUX_DIR(build-scripts)
     5 AC_CONFIG_MACRO_DIR([acinclude])
     6 
     7 dnl Save the CFLAGS to see whether they were passed in or generated
     8 orig_CFLAGS="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=8
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=8
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include -idirafter $srcdir/src/video/khronos"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h wchar.h inttypes.h stdint.h limits.h ctype.h math.h float.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf fabs fabsf floor floorf fmod fmodf log logf pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
   277     AC_CHECK_FUNCS(iconv)
   278 
   279     AC_CHECK_MEMBER(struct sigaction.sa_sigaction,[AC_DEFINE([HAVE_SA_SIGACTION], 1, [ ])], ,[#include <signal.h>])
   280 
   281 	dnl Check for additional non-standard headers
   282     AC_CHECK_HEADERS(libunwind.h)
   283 fi
   284 
   285 dnl AC_CHECK_SIZEOF(void*)
   286 
   287 dnl See whether we can use gcc atomic operations on this architecture
   288 AC_ARG_ENABLE(gcc-atomics,
   289 AC_HELP_STRING([--enable-gcc-atomics],
   290                [Use gcc builtin atomics [[default=yes]]]),
   291               , enable_gcc_atomics=yes)
   292 if test x$enable_gcc_atomics = xyes; then
   293     have_gcc_atomics=no
   294     AC_MSG_CHECKING(for GCC builtin atomic operations)
   295     AC_TRY_LINK([
   296     ],[
   297     int a;
   298     void *x, *y, *z;
   299     __sync_lock_test_and_set(&a, 4);
   300     __sync_lock_test_and_set(&x, y);
   301     __sync_fetch_and_add(&a, 1);
   302     __sync_bool_compare_and_swap(&a, 5, 10);
   303     __sync_bool_compare_and_swap(&x, y, z);
   304     ],[
   305     have_gcc_atomics=yes
   306     ])
   307     AC_MSG_RESULT($have_gcc_atomics)
   308 
   309     if test x$have_gcc_atomics = xyes; then
   310         AC_DEFINE(HAVE_GCC_ATOMICS, 1, [ ])
   311     else
   312         # See if we have the minimum operation needed for GCC atomics
   313         AC_TRY_LINK([
   314         ],[
   315         int a;
   316         __sync_lock_test_and_set(&a, 1);
   317         __sync_lock_release(&a);
   318         ],[
   319         have_gcc_sync_lock_test_and_set=yes
   320         ])
   321         if test x$have_gcc_sync_lock_test_and_set = xyes; then
   322             AC_DEFINE(HAVE_GCC_SYNC_LOCK_TEST_AND_SET, 1, [ ])
   323         fi
   324     fi
   325 fi
   326 
   327 # Standard C sources
   328 SOURCES="$SOURCES $srcdir/src/*.c"
   329 SOURCES="$SOURCES $srcdir/src/atomic/*.c"
   330 SOURCES="$SOURCES $srcdir/src/audio/*.c"
   331 SOURCES="$SOURCES $srcdir/src/cpuinfo/*.c"
   332 SOURCES="$SOURCES $srcdir/src/dynapi/*.c"
   333 SOURCES="$SOURCES $srcdir/src/events/*.c"
   334 SOURCES="$SOURCES $srcdir/src/file/*.c"
   335 SOURCES="$SOURCES $srcdir/src/haptic/*.c"
   336 SOURCES="$SOURCES $srcdir/src/joystick/*.c"
   337 SOURCES="$SOURCES $srcdir/src/libm/*.c"
   338 SOURCES="$SOURCES $srcdir/src/power/*.c"
   339 #SOURCES="$SOURCES $srcdir/src/filesystem/*.c"
   340 SOURCES="$SOURCES $srcdir/src/render/*.c"
   341 SOURCES="$SOURCES $srcdir/src/render/*/*.c"
   342 SOURCES="$SOURCES $srcdir/src/stdlib/*.c"
   343 SOURCES="$SOURCES $srcdir/src/thread/*.c"
   344 SOURCES="$SOURCES $srcdir/src/timer/*.c"
   345 SOURCES="$SOURCES $srcdir/src/video/*.c"
   346 SOURCES="$SOURCES $srcdir/src/video/yuv2rgb/*.c"
   347 
   348 dnl Enable/disable various subsystems of the SDL library
   349 
   350 AC_ARG_ENABLE(atomic,
   351 AC_HELP_STRING([--enable-atomic], [Enable the atomic operations subsystem [[default=yes]]]),
   352               , enable_atomic=yes)
   353 if test x$enable_atomic != xyes; then
   354     AC_DEFINE(SDL_ATOMIC_DISABLED, 1, [ ])
   355 else
   356     SUMMARY_modules="${SUMMARY_modules} atomic"
   357 fi
   358 AC_ARG_ENABLE(audio,
   359 AC_HELP_STRING([--enable-audio], [Enable the audio subsystem [[default=yes]]]),
   360               , enable_audio=yes)
   361 if test x$enable_audio != xyes; then
   362     AC_DEFINE(SDL_AUDIO_DISABLED, 1, [ ])
   363 else
   364     SUMMARY_modules="${SUMMARY_modules} audio"
   365 fi
   366 AC_ARG_ENABLE(video,
   367 AC_HELP_STRING([--enable-video], [Enable the video subsystem [[default=yes]]]),
   368               , enable_video=yes)
   369 if test x$enable_video != xyes; then
   370     AC_DEFINE(SDL_VIDEO_DISABLED, 1, [ ])
   371 else
   372     SUMMARY_modules="${SUMMARY_modules} video"
   373 fi
   374 AC_ARG_ENABLE(render,
   375 AC_HELP_STRING([--enable-render], [Enable the render subsystem [[default=yes]]]),
   376               , enable_render=yes)
   377 if test x$enable_render != xyes; then
   378     AC_DEFINE(SDL_RENDER_DISABLED, 1, [ ])
   379 else
   380     SUMMARY_modules="${SUMMARY_modules} render"
   381 fi
   382 AC_ARG_ENABLE(events,
   383 AC_HELP_STRING([--enable-events], [Enable the events subsystem [[default=yes]]]),
   384               , enable_events=yes)
   385 if test x$enable_events != xyes; then
   386     AC_DEFINE(SDL_EVENTS_DISABLED, 1, [ ])
   387 else
   388     SUMMARY_modules="${SUMMARY_modules} events"
   389 fi
   390 AC_ARG_ENABLE(joystick,
   391 AC_HELP_STRING([--enable-joystick], [Enable the joystick subsystem [[default=yes]]]),
   392               , enable_joystick=yes)
   393 if test x$enable_joystick != xyes; then
   394     AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
   395 else
   396     SUMMARY_modules="${SUMMARY_modules} joystick"
   397 fi
   398 AC_ARG_ENABLE(haptic,
   399 AC_HELP_STRING([--enable-haptic], [Enable the haptic (force feedback) subsystem [[default=yes]]]),
   400               , enable_haptic=yes)
   401 if test x$enable_haptic != xyes; then
   402     AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
   403 else
   404     SUMMARY_modules="${SUMMARY_modules} haptic"
   405 fi
   406 AC_ARG_ENABLE(power,
   407 AC_HELP_STRING([--enable-power], [Enable the power subsystem [[default=yes]]]),
   408               , enable_power=yes)
   409 if test x$enable_power != xyes; then
   410     AC_DEFINE(SDL_POWER_DISABLED, 1, [ ])
   411 else
   412     SUMMARY_modules="${SUMMARY_modules} power"
   413 fi
   414 AC_ARG_ENABLE(filesystem,
   415 AC_HELP_STRING([--enable-filesystem], [Enable the filesystem subsystem [[default=yes]]]),
   416               , enable_filesystem=yes)
   417 if test x$enable_filesystem != xyes; then
   418     AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
   419 else
   420     SUMMARY_modules="${SUMMARY_modules} filesystem"
   421 fi
   422 AC_ARG_ENABLE(threads,
   423 AC_HELP_STRING([--enable-threads], [Enable the threading subsystem [[default=yes]]]),
   424               , enable_threads=yes)
   425 if test x$enable_threads != xyes; then
   426     AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
   427 else
   428     SUMMARY_modules="${SUMMARY_modules} threads"
   429 fi
   430 AC_ARG_ENABLE(timers,
   431 AC_HELP_STRING([--enable-timers], [Enable the timer subsystem [[default=yes]]]),
   432               , enable_timers=yes)
   433 if test x$enable_timers != xyes; then
   434     AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
   435 else
   436     SUMMARY_modules="${SUMMARY_modules} timers"
   437 fi
   438 AC_ARG_ENABLE(file,
   439 AC_HELP_STRING([--enable-file], [Enable the file subsystem [[default=yes]]]),
   440               , enable_file=yes)
   441 if test x$enable_file != xyes; then
   442     AC_DEFINE(SDL_FILE_DISABLED, 1, [ ])
   443 else
   444     SUMMARY_modules="${SUMMARY_modules} file"
   445 fi
   446 AC_ARG_ENABLE(loadso,
   447 AC_HELP_STRING([--enable-loadso], [Enable the shared object loading subsystem [[default=yes]]]),
   448               , enable_loadso=yes)
   449 if test x$enable_loadso != xyes; then
   450     AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
   451 else
   452     SUMMARY_modules="${SUMMARY_modules} loadso"
   453 fi
   454 AC_ARG_ENABLE(cpuinfo,
   455 AC_HELP_STRING([--enable-cpuinfo], [Enable the cpuinfo subsystem [[default=yes]]]),
   456               , enable_cpuinfo=yes)
   457 if test x$enable_cpuinfo != xyes; then
   458     AC_DEFINE(SDL_CPUINFO_DISABLED, 1, [ ])
   459 else
   460     SUMMARY_modules="${SUMMARY_modules} cpuinfo"
   461 fi
   462 AC_ARG_ENABLE(assembly,
   463 AC_HELP_STRING([--enable-assembly], [Enable assembly routines [[default=yes]]]),
   464               , enable_assembly=yes)
   465 if test x$enable_assembly = xyes; then
   466     SUMMARY_modules="${SUMMARY_modules} assembly"
   467 
   468     AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
   469 
   470     # Make sure that we don't generate floating point code that would
   471     # cause illegal instruction exceptions on older processors
   472     case "$host" in
   473         *-*-darwin*)
   474             # Don't need to worry about Apple hardware, it's all SSE capable
   475             default_ssemath=yes
   476             ;;
   477         *64-*-*)
   478             # x86 64-bit architectures all have SSE instructions
   479             default_ssemath=yes
   480             ;;
   481         *)
   482             default_ssemath=no
   483             ;;
   484     esac
   485     AC_ARG_ENABLE(ssemath,
   486 AC_HELP_STRING([--enable-ssemath], [Allow GCC to use SSE floating point math [[default=maybe]]]),
   487                   , enable_ssemath=$default_ssemath)
   488     if test x$enable_ssemath = xno; then
   489         if test x$have_gcc_sse = xyes -o x$have_gcc_sse2 = xyes -o x$have_gcc_sse3 = xyes; then
   490             EXTRA_CFLAGS="$EXTRA_CFLAGS -mfpmath=387"
   491         fi
   492     fi
   493 
   494     dnl Check for various instruction support
   495     AC_ARG_ENABLE(mmx,
   496 AC_HELP_STRING([--enable-mmx], [use MMX assembly routines [[default=yes]]]),
   497                   , enable_mmx=yes)
   498     if test x$enable_mmx = xyes; then
   499         save_CFLAGS="$CFLAGS"
   500         have_gcc_mmx=no
   501         AC_MSG_CHECKING(for GCC -mmmx option)
   502         mmx_CFLAGS="-mmmx"
   503         CFLAGS="$save_CFLAGS $mmx_CFLAGS"
   504 
   505         AC_TRY_COMPILE([
   506         #ifdef __MINGW32__
   507         #include <_mingw.h>
   508         #ifdef __MINGW64_VERSION_MAJOR
   509         #include <intrin.h>
   510         #else
   511         #include <mmintrin.h>
   512         #endif
   513         #else
   514         #include <mmintrin.h>
   515         #endif
   516         #ifndef __MMX__
   517         #error Assembler CPP flag not enabled
   518         #endif
   519         ],[
   520         ],[
   521         have_gcc_mmx=yes
   522         ])
   523         AC_MSG_RESULT($have_gcc_mmx)
   524         CFLAGS="$save_CFLAGS"
   525 
   526         if test x$have_gcc_mmx = xyes; then
   527             EXTRA_CFLAGS="$EXTRA_CFLAGS $mmx_CFLAGS"
   528             SUMMARY_math="${SUMMARY_math} mmx"
   529         fi
   530     fi
   531 
   532     AC_ARG_ENABLE(3dnow,
   533 AC_HELP_STRING([--enable-3dnow], [use 3DNow! assembly routines [[default=yes]]]),
   534                   , enable_3dnow=yes)
   535     if test x$enable_3dnow = xyes; then
   536         save_CFLAGS="$CFLAGS"
   537         have_gcc_3dnow=no
   538         AC_MSG_CHECKING(for GCC -m3dnow option)
   539         amd3dnow_CFLAGS="-m3dnow"
   540         CFLAGS="$save_CFLAGS $amd3dnow_CFLAGS"
   541 
   542         AC_TRY_LINK([
   543         #include <mm3dnow.h>
   544         #ifndef __3dNOW__
   545         #error Assembler CPP flag not enabled
   546         #endif
   547         ],[
   548         void *p = 0;
   549         _m_prefetch(p);
   550         ],[
   551         have_gcc_3dnow=yes
   552         ])
   553         AC_MSG_RESULT($have_gcc_3dnow)
   554         CFLAGS="$save_CFLAGS"
   555 
   556         if test x$have_gcc_3dnow = xyes; then
   557             EXTRA_CFLAGS="$EXTRA_CFLAGS $amd3dnow_CFLAGS"
   558             SUMMARY_math="${SUMMARY_math} 3dnow"
   559         fi
   560     fi
   561 
   562     AC_ARG_ENABLE(sse,
   563 AC_HELP_STRING([--enable-sse], [use SSE assembly routines [[default=yes]]]),
   564                   , enable_sse=yes)
   565     if test x$enable_sse = xyes; then
   566         save_CFLAGS="$CFLAGS"
   567         have_gcc_sse=no
   568         AC_MSG_CHECKING(for GCC -msse option)
   569         sse_CFLAGS="-msse"
   570         CFLAGS="$save_CFLAGS $sse_CFLAGS"
   571 
   572         AC_TRY_COMPILE([
   573         #ifdef __MINGW32__
   574         #include <_mingw.h>
   575         #ifdef __MINGW64_VERSION_MAJOR
   576         #include <intrin.h>
   577         #else
   578         #include <xmmintrin.h>
   579         #endif
   580         #else
   581         #include <xmmintrin.h>
   582         #endif
   583         #ifndef __SSE__
   584         #error Assembler CPP flag not enabled
   585         #endif
   586         ],[
   587         ],[
   588         have_gcc_sse=yes
   589         ])
   590         AC_MSG_RESULT($have_gcc_sse)
   591         CFLAGS="$save_CFLAGS"
   592 
   593         if test x$have_gcc_sse = xyes; then
   594             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse_CFLAGS"
   595             SUMMARY_math="${SUMMARY_math} sse"
   596         fi
   597     fi
   598 
   599     AC_ARG_ENABLE(sse2,
   600 AC_HELP_STRING([--enable-sse2], [use SSE2 assembly routines [[default=maybe]]]),
   601                   , enable_sse2=$default_ssemath)
   602     if test x$enable_sse2 = xyes; then
   603         save_CFLAGS="$CFLAGS"
   604         have_gcc_sse2=no
   605         AC_MSG_CHECKING(for GCC -msse2 option)
   606         sse2_CFLAGS="-msse2"
   607         CFLAGS="$save_CFLAGS $sse2_CFLAGS"
   608 
   609         AC_TRY_COMPILE([
   610         #ifdef __MINGW32__
   611         #include <_mingw.h>
   612         #ifdef __MINGW64_VERSION_MAJOR
   613         #include <intrin.h>
   614         #else
   615         #include <emmintrin.h>
   616         #endif
   617         #else
   618         #include <emmintrin.h>
   619         #endif
   620         #ifndef __SSE2__
   621         #error Assembler CPP flag not enabled
   622         #endif
   623         ],[
   624         ],[
   625         have_gcc_sse2=yes
   626         ])
   627         AC_MSG_RESULT($have_gcc_sse2)
   628         CFLAGS="$save_CFLAGS"
   629 
   630         if test x$have_gcc_sse2 = xyes; then
   631             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse2_CFLAGS"
   632             SUMMARY_math="${SUMMARY_math} sse2"
   633         fi
   634     fi
   635 
   636     AC_ARG_ENABLE(sse3,
   637 AC_HELP_STRING([--enable-sse3], [use SSE3 assembly routines [[default=maybe]]]),
   638                   , enable_sse3=$default_ssemath)
   639     if test x$enable_sse3 = xyes; then
   640         save_CFLAGS="$CFLAGS"
   641         have_gcc_sse3=no
   642         AC_MSG_CHECKING(for GCC -msse3 option)
   643         sse3_CFLAGS="-msse3"
   644         CFLAGS="$save_CFLAGS $sse3_CFLAGS"
   645 
   646         AC_TRY_COMPILE([
   647         #ifdef __MINGW32__
   648         #include <_mingw.h>
   649         #ifdef __MINGW64_VERSION_MAJOR
   650         #include <intrin.h>
   651         #else
   652         #include <pmmintrin.h>
   653         #endif
   654         #else
   655         #include <pmmintrin.h>
   656         #endif
   657         #ifndef __SSE2__
   658         #error Assembler CPP flag not enabled
   659         #endif
   660         ],[
   661         ],[
   662         have_gcc_sse3=yes
   663         ])
   664         AC_MSG_RESULT($have_gcc_sse3)
   665         CFLAGS="$save_CFLAGS"
   666 
   667         if test x$have_gcc_sse3 = xyes; then
   668             EXTRA_CFLAGS="$EXTRA_CFLAGS $sse3_CFLAGS"
   669             SUMMARY_math="${SUMMARY_math} sse3"
   670         fi
   671     fi
   672 
   673     AC_CHECK_HEADER(immintrin.h,
   674                     have_immintrin_h_hdr=yes,
   675                     have_immintrin_h_hdr=no)
   676     if test x$have_immintrin_h_hdr = xyes; then
   677         AC_DEFINE(HAVE_IMMINTRIN_H, 1, [ ])
   678     fi
   679 
   680     AC_ARG_ENABLE(altivec,
   681 AC_HELP_STRING([--enable-altivec], [use Altivec assembly routines [[default=yes]]]),
   682                   , enable_altivec=yes)
   683     if test x$enable_altivec = xyes; then
   684         save_CFLAGS="$CFLAGS"
   685         have_gcc_altivec=no
   686         have_altivec_h_hdr=no
   687         altivec_CFLAGS="-maltivec"
   688         CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   689 
   690         AC_MSG_CHECKING(for Altivec with GCC altivec.h and -maltivec option)
   691         AC_TRY_COMPILE([
   692         #include <altivec.h>
   693         vector unsigned int vzero() {
   694             return vec_splat_u32(0);
   695         }
   696         ],[
   697         ],[
   698         have_gcc_altivec=yes
   699         have_altivec_h_hdr=yes
   700         ])
   701         AC_MSG_RESULT($have_gcc_altivec)
   702 
   703         if test x$have_gcc_altivec = xno; then
   704             AC_MSG_CHECKING(for Altivec with GCC -maltivec option)
   705             AC_TRY_COMPILE([
   706             vector unsigned int vzero() {
   707                 return vec_splat_u32(0);
   708             }
   709             ],[
   710             ],[
   711             have_gcc_altivec=yes
   712             ])
   713             AC_MSG_RESULT($have_gcc_altivec)
   714         fi
   715 
   716         if test x$have_gcc_altivec = xno; then
   717             AC_MSG_CHECKING(for Altivec with GCC altivec.h and -faltivec option)
   718             altivec_CFLAGS="-faltivec"
   719             CFLAGS="$save_CFLAGS $altivec_CFLAGS"
   720             AC_TRY_COMPILE([
   721             #include <altivec.h>
   722             vector unsigned int vzero() {
   723                 return vec_splat_u32(0);
   724             }
   725             ],[
   726             ],[
   727             have_gcc_altivec=yes
   728             have_altivec_h_hdr=yes
   729             ])
   730             AC_MSG_RESULT($have_gcc_altivec)
   731         fi
   732 
   733         if test x$have_gcc_altivec = xno; then
   734             AC_MSG_CHECKING(for Altivec with GCC -faltivec option)
   735             AC_TRY_COMPILE([
   736             vector unsigned int vzero() {
   737                 return vec_splat_u32(0);
   738             }
   739             ],[
   740             ],[
   741             have_gcc_altivec=yes
   742             ])
   743             AC_MSG_RESULT($have_gcc_altivec)
   744         fi
   745         CFLAGS="$save_CFLAGS"
   746 
   747         if test x$have_gcc_altivec = xyes; then
   748             AC_DEFINE(SDL_ALTIVEC_BLITTERS, 1, [ ])
   749             if test x$have_altivec_h_hdr = xyes; then
   750               AC_DEFINE(HAVE_ALTIVEC_H, 1, [ ])
   751             fi
   752             EXTRA_CFLAGS="$EXTRA_CFLAGS $altivec_CFLAGS"
   753             SUMMARY_math="${SUMMARY_math} altivec"
   754         fi
   755     fi
   756 fi
   757 
   758 dnl See if the OSS audio interface is supported
   759 CheckOSS()
   760 {
   761     AC_ARG_ENABLE(oss,
   762 AC_HELP_STRING([--enable-oss], [support the OSS audio API [[default=maybe]]]),
   763                   , enable_oss=maybe)
   764 
   765     # OpenBSD "has" OSS, but it's not really for app use. They want you to
   766     #  use sndio instead. So on there, we default to disabled. You can force
   767     #  it on if you really want, though.
   768     if test x$enable_oss = xmaybe; then
   769         enable_oss=yes
   770         case "$host" in
   771             *-*-openbsd*)
   772                 enable_oss=no;;
   773         esac
   774     fi
   775 
   776     if test x$enable_audio = xyes -a x$enable_oss = xyes; then
   777         AC_MSG_CHECKING(for OSS audio support)
   778         have_oss=no
   779         if test x$have_oss != xyes; then
   780             AC_TRY_COMPILE([
   781               #include <sys/soundcard.h>
   782             ],[
   783               int arg = SNDCTL_DSP_SETFRAGMENT;
   784             ],[
   785             have_oss=yes
   786             ])
   787         fi
   788         if test x$have_oss != xyes; then
   789             AC_TRY_COMPILE([
   790               #include <soundcard.h>
   791             ],[
   792               int arg = SNDCTL_DSP_SETFRAGMENT;
   793             ],[
   794             have_oss=yes
   795             AC_DEFINE(SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H, 1, [ ])
   796             ])
   797         fi
   798         AC_MSG_RESULT($have_oss)
   799         if test x$have_oss = xyes; then
   800             SUMMARY_audio="${SUMMARY_audio} oss"
   801             AC_DEFINE(SDL_AUDIO_DRIVER_OSS, 1, [ ])
   802             SOURCES="$SOURCES $srcdir/src/audio/dsp/*.c"
   803             have_audio=yes
   804 
   805             # We may need to link with ossaudio emulation library
   806             case "$host" in
   807                 *-*-openbsd*|*-*-netbsd*)
   808                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lossaudio";;
   809             esac
   810         fi
   811     fi
   812 }
   813 
   814 dnl See if the ALSA audio interface is supported
   815 CheckALSA()
   816 {
   817     AC_ARG_ENABLE(alsa,
   818 AC_HELP_STRING([--enable-alsa], [support the ALSA audio API [[default=yes]]]),
   819                   , enable_alsa=yes)
   820     if test x$enable_audio = xyes -a x$enable_alsa = xyes; then
   821         AM_PATH_ALSA(1.0.11, have_alsa=yes, have_alsa=no)
   822         # Restore all flags from before the ALSA detection runs
   823         CFLAGS="$alsa_save_CFLAGS"
   824         LDFLAGS="$alsa_save_LDFLAGS"
   825         LIBS="$alsa_save_LIBS"
   826         if test x$have_alsa = xyes; then
   827             AC_ARG_ENABLE(alsa-shared,
   828 AC_HELP_STRING([--enable-alsa-shared], [dynamically load ALSA audio support [[default=yes]]]),
   829                           , enable_alsa_shared=yes)
   830             alsa_lib=[`find_lib "libasound.so.*" "$ALSA_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   831 
   832             AC_DEFINE(SDL_AUDIO_DRIVER_ALSA, 1, [ ])
   833             SOURCES="$SOURCES $srcdir/src/audio/alsa/*.c"
   834             EXTRA_CFLAGS="$EXTRA_CFLAGS $ALSA_CFLAGS"
   835             if test x$have_loadso != xyes && \
   836                test x$enable_alsa_shared = xyes; then
   837                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ALSA loading])
   838             fi
   839             if test x$have_loadso = xyes && \
   840                test x$enable_alsa_shared = xyes && test x$alsa_lib != x; then
   841                 echo "-- dynamic libasound -> $alsa_lib"
   842                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ALSA_DYNAMIC, "$alsa_lib", [ ])
   843                 SUMMARY_audio="${SUMMARY_audio} alsa(dynamic)"
   844             else
   845                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ALSA_LIBS"
   846                 SUMMARY_audio="${SUMMARY_audio} alsa"
   847             fi
   848             have_audio=yes
   849         fi
   850     fi
   851 }
   852 
   853 dnl Find JACK Audio
   854 CheckJACK()
   855 {
   856     AC_ARG_ENABLE(jack,
   857 AC_HELP_STRING([--enable-jack], [use JACK audio [[default=yes]]]),
   858                   , enable_jack=yes)
   859     if test x$enable_audio = xyes -a x$enable_jack = xyes; then
   860         audio_jack=no
   861 
   862         JACK_REQUIRED_VERSION=0.125
   863 
   864         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   865         AC_MSG_CHECKING(for JACK $JACK_REQUIRED_VERSION support)
   866         if test x$PKG_CONFIG != xno; then
   867         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $JACK_REQUIRED_VERSION jack; then
   868                 JACK_CFLAGS=`$PKG_CONFIG --cflags jack`
   869                 JACK_LIBS=`$PKG_CONFIG --libs jack`
   870                 audio_jack=yes
   871             fi
   872         fi
   873         AC_MSG_RESULT($audio_jack)
   874 
   875         if test x$audio_jack = xyes; then
   876             AC_ARG_ENABLE(jack-shared,
   877 AC_HELP_STRING([--enable-jack-shared], [dynamically load JACK audio support [[default=yes]]]),
   878                           , enable_jack_shared=yes)
   879             jack_lib=[`find_lib "libjack.so.*" "$JACK_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   880 
   881             AC_DEFINE(SDL_AUDIO_DRIVER_JACK, 1, [ ])
   882             SOURCES="$SOURCES $srcdir/src/audio/jack/*.c"
   883             EXTRA_CFLAGS="$EXTRA_CFLAGS $JACK_CFLAGS"
   884             if test x$have_loadso != xyes && \
   885                test x$enable_jack_shared = xyes; then
   886                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic JACK audio loading])
   887             fi
   888             if test x$have_loadso = xyes && \
   889                test x$enable_jack_shared = xyes && test x$jack_lib != x; then
   890                 echo "-- dynamic libjack -> $jack_lib"
   891                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_JACK_DYNAMIC, "$jack_lib", [ ])
   892                 SUMMARY_audio="${SUMMARY_audio} jack(dynamic)"
   893 
   894                 case "$host" in
   895                     # On Solaris, jack must be linked deferred explicitly
   896                     # to prevent undefined symbol failures.
   897                     *-*-solaris*)
   898                         JACK_LIBS=`echo $JACK_LIBS | sed 's/\-l/-Wl,-l/g'`
   899                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $JACK_LIBS -Wl,-znodeferred"
   900                 esac
   901             else
   902                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $JACK_LIBS"
   903                 SUMMARY_audio="${SUMMARY_audio} jack"
   904             fi
   905             have_audio=yes
   906         fi
   907     fi
   908 }
   909 
   910 dnl Find the ESD includes and libraries
   911 CheckESD()
   912 {
   913     AC_ARG_ENABLE(esd,
   914 AC_HELP_STRING([--enable-esd], [support the Enlightened Sound Daemon [[default=yes]]]),
   915                   , enable_esd=yes)
   916     if test x$enable_audio = xyes -a x$enable_esd = xyes; then
   917         AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
   918         if test x$have_esd = xyes; then
   919             AC_ARG_ENABLE(esd-shared,
   920 AC_HELP_STRING([--enable-esd-shared], [dynamically load ESD audio support [[default=yes]]]),
   921                           , enable_esd_shared=yes)
   922             esd_lib=[`find_lib "libesd.so.*" "$ESD_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   923 
   924             AC_DEFINE(SDL_AUDIO_DRIVER_ESD, 1, [ ])
   925             SOURCES="$SOURCES $srcdir/src/audio/esd/*.c"
   926             EXTRA_CFLAGS="$EXTRA_CFLAGS $ESD_CFLAGS"
   927             if test x$have_loadso != xyes && \
   928                test x$enable_esd_shared = xyes; then
   929                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ESD loading])
   930             fi
   931             if test x$have_loadso = xyes && \
   932                test x$enable_esd_shared = xyes && test x$esd_lib != x; then
   933                 echo "-- dynamic libesd -> $esd_lib"
   934                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ESD_DYNAMIC, "$esd_lib", [ ])
   935                 SUMMARY_audio="${SUMMARY_audio} esd(dynamic)"
   936             else
   937                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ESD_LIBS"
   938                 SUMMARY_audio="${SUMMARY_audio} esd"
   939             fi
   940             have_audio=yes
   941         fi
   942     fi
   943 }
   944 
   945 dnl Find PulseAudio
   946 CheckPulseAudio()
   947 {
   948     AC_ARG_ENABLE(pulseaudio,
   949 AC_HELP_STRING([--enable-pulseaudio], [use PulseAudio [[default=yes]]]),
   950                   , enable_pulseaudio=yes)
   951     if test x$enable_audio = xyes -a x$enable_pulseaudio = xyes; then
   952         audio_pulseaudio=no
   953 
   954         PULSEAUDIO_REQUIRED_VERSION=0.9
   955 
   956         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   957         AC_MSG_CHECKING(for PulseAudio $PULSEAUDIO_REQUIRED_VERSION support)
   958         if test x$PKG_CONFIG != xno; then
   959         if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $PULSEAUDIO_REQUIRED_VERSION libpulse-simple; then
   960                 PULSEAUDIO_CFLAGS=`$PKG_CONFIG --cflags libpulse-simple`
   961                 PULSEAUDIO_LIBS=`$PKG_CONFIG --libs libpulse-simple`
   962                 audio_pulseaudio=yes
   963             fi
   964         fi
   965         AC_MSG_RESULT($audio_pulseaudio)
   966 
   967         if test x$audio_pulseaudio = xyes; then
   968             AC_ARG_ENABLE(pulseaudio-shared,
   969 AC_HELP_STRING([--enable-pulseaudio-shared], [dynamically load PulseAudio support [[default=yes]]]),
   970                           , enable_pulseaudio_shared=yes)
   971             pulseaudio_lib=[`find_lib "libpulse-simple.so.*" "$PULSEAUDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
   972 
   973             AC_DEFINE(SDL_AUDIO_DRIVER_PULSEAUDIO, 1, [ ])
   974             SOURCES="$SOURCES $srcdir/src/audio/pulseaudio/*.c"
   975             EXTRA_CFLAGS="$EXTRA_CFLAGS $PULSEAUDIO_CFLAGS"
   976             if test x$have_loadso != xyes && \
   977                test x$enable_pulseaudio_shared = xyes; then
   978                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic PulseAudio loading])
   979             fi
   980             if test x$have_loadso = xyes && \
   981                test x$enable_pulseaudio_shared = xyes && test x$pulseaudio_lib != x; then
   982                 echo "-- dynamic libpulse-simple -> $pulseaudio_lib"
   983                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC, "$pulseaudio_lib", [ ])
   984                 SUMMARY_audio="${SUMMARY_audio} pulse(dynamic)"
   985 
   986                 case "$host" in
   987                     # On Solaris, pulseaudio must be linked deferred explicitly
   988                     # to prevent undefined symbol failures.
   989                     *-*-solaris*)
   990                         PULSEAUDIO_LIBS=`echo $PULSEAUDIO_LIBS | sed 's/\-l/-Wl,-l/g'`
   991                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-zdeferred $PULSEAUDIO_LIBS -Wl,-znodeferred"
   992                 esac
   993             else
   994                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $PULSEAUDIO_LIBS"
   995                 SUMMARY_audio="${SUMMARY_audio} pulse"
   996             fi
   997             have_audio=yes
   998         fi
   999     fi
  1000 }
  1001 
  1002 CheckARTSC()
  1003 {
  1004     AC_ARG_ENABLE(arts,
  1005 AC_HELP_STRING([--enable-arts], [support the Analog Real Time Synthesizer [[default=yes]]]),
  1006                   , enable_arts=yes)
  1007     if test x$enable_audio = xyes -a x$enable_arts = xyes; then
  1008         AC_PATH_PROG(ARTSCONFIG, artsc-config)
  1009         if test x$ARTSCONFIG = x -o x$ARTSCONFIG = x'"$ARTSCONFIG"'; then
  1010             : # arts isn't installed
  1011         else
  1012             ARTS_CFLAGS=`$ARTSCONFIG --cflags`
  1013             ARTS_LIBS=`$ARTSCONFIG --libs`
  1014             AC_MSG_CHECKING(for aRts development environment)
  1015             audio_arts=no
  1016             save_CFLAGS="$CFLAGS"
  1017             CFLAGS="$CFLAGS $ARTS_CFLAGS"
  1018             AC_TRY_COMPILE([
  1019              #include <artsc.h>
  1020             ],[
  1021              arts_stream_t stream;
  1022             ],[
  1023             audio_arts=yes
  1024             ])
  1025             CFLAGS="$save_CFLAGS"
  1026             AC_MSG_RESULT($audio_arts)
  1027             if test x$audio_arts = xyes; then
  1028                 AC_ARG_ENABLE(arts-shared,
  1029 AC_HELP_STRING([--enable-arts-shared], [dynamically load aRts audio support [[default=yes]]]),
  1030                               , enable_arts_shared=yes)
  1031                 arts_lib=[`find_lib "libartsc.so.*" "$ARTS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1032 
  1033                 AC_DEFINE(SDL_AUDIO_DRIVER_ARTS, 1, [ ])
  1034                 SOURCES="$SOURCES $srcdir/src/audio/arts/*.c"
  1035                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARTS_CFLAGS"
  1036                 if test x$have_loadso != xyes && \
  1037                    test x$enable_arts_shared = xyes; then
  1038                     AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic ARTS loading])
  1039                 fi
  1040                 if test x$have_loadso = xyes && \
  1041                    test x$enable_arts_shared = xyes && test x$arts_lib != x; then
  1042                     echo "-- dynamic libartsc -> $arts_lib"
  1043                     AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_ARTS_DYNAMIC, "$arts_lib", [ ])
  1044                     SUMMARY_audio="${SUMMARY_audio} arts(dynamic)"
  1045                 else
  1046                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARTS_LIBS"
  1047                     SUMMARY_audio="${SUMMARY_audio} arts"
  1048                 fi
  1049                 have_audio=yes
  1050             fi
  1051         fi
  1052     fi
  1053 }
  1054 
  1055 dnl See if the NAS audio interface is supported
  1056 CheckNAS()
  1057 {
  1058     AC_ARG_ENABLE(nas,
  1059 AC_HELP_STRING([--enable-nas], [support the NAS audio API [[default=yes]]]),
  1060                   , enable_nas=yes)
  1061     if test x$enable_audio = xyes -a x$enable_nas = xyes; then
  1062         AC_CHECK_HEADER(audio/audiolib.h, have_nas_hdr=yes)
  1063         AC_CHECK_LIB(audio, AuOpenServer, have_nas_lib=yes)
  1064 
  1065         AC_MSG_CHECKING(for NAS audio support)
  1066         have_nas=no
  1067 
  1068         if test x$have_nas_hdr = xyes -a x$have_nas_lib = xyes; then
  1069             have_nas=yes
  1070             NAS_LIBS="-laudio"
  1071 
  1072         elif test -r /usr/X11R6/include/audio/audiolib.h; then
  1073             have_nas=yes
  1074             NAS_CFLAGS="-I/usr/X11R6/include/"
  1075             NAS_LIBS="-L/usr/X11R6/lib -laudio -lXt"
  1076 
  1077         fi
  1078 
  1079         AC_MSG_RESULT($have_nas)
  1080 
  1081         if test x$have_nas = xyes; then
  1082             AC_ARG_ENABLE(nas-shared,
  1083 AC_HELP_STRING([--enable-nas-shared], [dynamically load NAS audio support [[default=yes]]]),
  1084                           , enable_nas_shared=yes)
  1085             nas_lib=[`find_lib "libaudio.so.*" "$NAS_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1086 
  1087             if test x$have_loadso != xyes && \
  1088                test x$enable_nas_shared = xyes; then
  1089                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic NAS loading])
  1090             fi
  1091             if test x$have_loadso = xyes && \
  1092                test x$enable_nas_shared = xyes && test x$nas_lib != x; then
  1093                 echo "-- dynamic libaudio -> $nas_lib"
  1094                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_NAS_DYNAMIC, "$nas_lib", [ ])
  1095                 SUMMARY_audio="${SUMMARY_audio} nas(dynamic)"
  1096             else
  1097                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $NAS_LIBS"
  1098                 SUMMARY_audio="${SUMMARY_audio} nas"
  1099             fi
  1100 
  1101             AC_DEFINE(SDL_AUDIO_DRIVER_NAS, 1, [ ])
  1102             SOURCES="$SOURCES $srcdir/src/audio/nas/*.c"
  1103             EXTRA_CFLAGS="$EXTRA_CFLAGS $NAS_CFLAGS"
  1104             have_audio=yes
  1105         fi
  1106     fi
  1107 }
  1108 
  1109 dnl See if the sndio audio interface is supported
  1110 CheckSNDIO()
  1111 {
  1112     AC_ARG_ENABLE(sndio,
  1113 AC_HELP_STRING([--enable-sndio], [support the sndio audio API [[default=yes]]]),
  1114                   , enable_sndio=yes)
  1115     if test x$enable_audio = xyes -a x$enable_sndio = xyes; then
  1116         AC_CHECK_HEADER(sndio.h, have_sndio_hdr=yes)
  1117         AC_CHECK_LIB(sndio, sio_open, have_sndio_lib=yes)
  1118 
  1119         AC_MSG_CHECKING(for sndio audio support)
  1120         have_sndio=no
  1121 
  1122         if test x$have_sndio_hdr = xyes -a x$have_sndio_lib = xyes; then
  1123             have_sndio=yes
  1124             SNDIO_LIBS="-lsndio"
  1125         fi
  1126 
  1127         AC_MSG_RESULT($have_sndio)
  1128 
  1129         if test x$have_sndio = xyes; then
  1130             AC_ARG_ENABLE(sndio-shared,
  1131 AC_HELP_STRING([--enable-sndio-shared], [dynamically load sndio audio support [[default=yes]]]),
  1132                           , enable_sndio_shared=yes)
  1133             sndio_lib=[`find_lib "libsndio.so.*" "$SNDIO_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1134 
  1135             if test x$have_loadso != xyes && \
  1136                test x$enable_sndio_shared = xyes; then
  1137                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic sndio loading])
  1138             fi
  1139             if test x$have_loadso = xyes && \
  1140                test x$enable_sndio_shared = xyes && test x$sndio_lib != x; then
  1141                 echo "-- dynamic libsndio -> $sndio_lib"
  1142                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC, "$sndio_lib", [ ])
  1143                 SUMMARY_audio="${SUMMARY_audio} sndio(dynamic)"
  1144             else
  1145                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $SNDIO_LIBS"
  1146                 SUMMARY_audio="${SUMMARY_audio} sndio"
  1147             fi
  1148 
  1149             AC_DEFINE(SDL_AUDIO_DRIVER_SNDIO, 1, [ ])
  1150             SOURCES="$SOURCES $srcdir/src/audio/sndio/*.c"
  1151             EXTRA_CFLAGS="$EXTRA_CFLAGS $SNDIO_CFLAGS"
  1152             have_audio=yes
  1153         fi
  1154     fi
  1155 }
  1156 
  1157 dnl Find FusionSound
  1158 CheckFusionSound()
  1159 {
  1160     AC_ARG_ENABLE(fusionsound,
  1161 AC_HELP_STRING([--enable-fusionsound], [use FusionSound audio driver [[default=no]]]),
  1162                   , enable_fusionsound=no)
  1163     if test x$enable_audio = xyes -a x$enable_fusionsound = xyes; then
  1164         fusionsound=no
  1165 
  1166         FUSIONSOUND_REQUIRED_VERSION=1.1.1
  1167 
  1168         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1169         AC_MSG_CHECKING(for FusionSound $FUSIONSOUND_REQUIRED_VERSION support)
  1170         if test x$PKG_CONFIG != xno; then
  1171             if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $FUSIONSOUND_REQUIRED_VERSION fusionsound; then
  1172                 FUSIONSOUND_CFLAGS=`$PKG_CONFIG --cflags fusionsound`
  1173                 FUSIONSOUND_LIBS=`$PKG_CONFIG --libs fusionsound`
  1174                 fusionsound=yes
  1175             fi
  1176         fi
  1177         AC_MSG_RESULT($fusionsound)
  1178 
  1179         if test x$fusionsound = xyes; then
  1180             AC_DEFINE(SDL_AUDIO_DRIVER_FUSIONSOUND, 1, [ ])
  1181             SOURCES="$SOURCES $srcdir/src/audio/fusionsound/*.c"
  1182             EXTRA_CFLAGS="$EXTRA_CFLAGS $FUSIONSOUND_CFLAGS"
  1183             
  1184             AC_ARG_ENABLE(fusionsound-shared,
  1185 AC_HELP_STRING([--enable-fusionsound-shared], [dynamically load fusionsound audio support [[default=yes]]]),
  1186                           , enable_fusionsound_shared=yes)
  1187             fusionsound_shared=no
  1188             AC_MSG_CHECKING(for FusionSound dynamic loading support)
  1189             if test x$have_loadso != xyes && \
  1190                test x$enable_fusionsound_shared = xyes; then
  1191                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic fusionsound loading])
  1192             fi
  1193             if test x$have_loadso = xyes && \
  1194                test x$enable_fusionsound_shared = xyes; then
  1195                 AC_DEFINE_UNQUOTED(SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC, "libfusionsound.so", [ ])
  1196                 fusionsound_shared=yes
  1197                 SUMMARY_audio="${SUMMARY_audio} fusionsound(dynamic)"
  1198             else
  1199                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $FUSIONSOUND_LIBS"
  1200                 SUMMARY_audio="${SUMMARY_audio} fusionsound"
  1201             fi
  1202             AC_MSG_RESULT($fusionsound_shared)
  1203             
  1204             have_audio=yes
  1205         fi
  1206     fi
  1207 }
  1208 
  1209 dnl rcg07142001 See if the user wants the disk writer audio driver...
  1210 CheckDiskAudio()
  1211 {
  1212     AC_ARG_ENABLE(diskaudio,
  1213 AC_HELP_STRING([--enable-diskaudio], [support the disk writer audio driver [[default=yes]]]),
  1214                   , enable_diskaudio=yes)
  1215     if test x$enable_audio = xyes -a x$enable_diskaudio = xyes; then
  1216         AC_DEFINE(SDL_AUDIO_DRIVER_DISK, 1, [ ])
  1217         SOURCES="$SOURCES $srcdir/src/audio/disk/*.c"
  1218         SUMMARY_audio="${SUMMARY_audio} disk"
  1219     fi
  1220 }
  1221 
  1222 dnl rcg03142006 See if the user wants the dummy audio driver...
  1223 CheckDummyAudio()
  1224 {
  1225     AC_ARG_ENABLE(dummyaudio,
  1226 AC_HELP_STRING([--enable-dummyaudio], [support the dummy audio driver [[default=yes]]]),
  1227                   , enable_dummyaudio=yes)
  1228     if test x$enable_audio = xyes -a x$enable_dummyaudio = xyes; then
  1229         AC_DEFINE(SDL_AUDIO_DRIVER_DUMMY, 1, [ ])
  1230         SOURCES="$SOURCES $srcdir/src/audio/dummy/*.c"
  1231         SUMMARY_audio="${SUMMARY_audio} dummy"
  1232     fi
  1233 }
  1234 
  1235 dnl See if libsamplerate is available
  1236 CheckLibSampleRate()
  1237 {
  1238     AC_ARG_ENABLE(libsamplerate,
  1239 AC_HELP_STRING([--enable-libsamplerate], [use libsamplerate for audio rate conversion [[default=yes]]]),
  1240                   , enable_libsamplerate=yes)
  1241     if test x$enable_libsamplerate = xyes; then
  1242         AC_CHECK_HEADER(samplerate.h,
  1243                         have_samplerate_h_hdr=yes,
  1244                         have_samplerate_h_hdr=no)
  1245         if test x$have_samplerate_h_hdr = xyes; then
  1246             AC_DEFINE(HAVE_LIBSAMPLERATE_H, 1, [ ])
  1247 
  1248             AC_ARG_ENABLE(libsamplerate-shared,
  1249 AC_HELP_STRING([--enable-libsamplerate-shared], [dynamically load libsamplerate [[default=yes]]]),
  1250                           , enable_libsamplerate_shared=yes)
  1251 
  1252             samplerate_lib=[`find_lib "libsamplerate.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  1253 
  1254             if test x$have_loadso != xyes && \
  1255                test x$enable_libsamplerate_shared = xyes; then
  1256                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic libsamplerate loading])
  1257             fi
  1258             if test x$have_loadso = xyes && \
  1259                test x$enable_libsamplerate_shared = xyes && test x$samplerate_lib != x; then
  1260                 echo "-- dynamic libsamplerate -> $samplerate_lib"
  1261                 AC_DEFINE_UNQUOTED(SDL_LIBSAMPLERATE_DYNAMIC, "$samplerate_lib", [ ])
  1262             else
  1263                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lsamplerate"
  1264             fi
  1265         fi
  1266     fi
  1267 }
  1268 
  1269 dnl See if GCC's -fvisibility=hidden is supported (gcc4 and later, usually).
  1270 dnl  Details of this flag are here: http://gcc.gnu.org/wiki/Visibility
  1271 CheckVisibilityHidden()
  1272 {
  1273     AC_MSG_CHECKING(for GCC -fvisibility=hidden option)
  1274     have_gcc_fvisibility=no
  1275 
  1276     visibility_CFLAGS="-fvisibility=hidden"
  1277     save_CFLAGS="$CFLAGS"
  1278     CFLAGS="$save_CFLAGS $visibility_CFLAGS -Werror"
  1279     AC_TRY_COMPILE([
  1280     #if !defined(__GNUC__) || __GNUC__ < 4
  1281     #error SDL only uses visibility attributes in GCC 4 or newer
  1282     #endif
  1283     ],[
  1284     ],[
  1285     have_gcc_fvisibility=yes
  1286     ])
  1287     AC_MSG_RESULT($have_gcc_fvisibility)
  1288     CFLAGS="$save_CFLAGS"
  1289 
  1290     if test x$have_gcc_fvisibility = xyes; then
  1291         EXTRA_CFLAGS="$EXTRA_CFLAGS $visibility_CFLAGS"
  1292     fi
  1293 }
  1294 
  1295 dnl See if GCC's -mpreferred-stack-boundary is supported.
  1296 dnl  Reference: http://bugzilla.libsdl.org/show_bug.cgi?id=1296
  1297 CheckStackBoundary()
  1298 {
  1299     AC_MSG_CHECKING(for GCC -mpreferred-stack-boundary option)
  1300     have_gcc_preferred_stack_boundary=no
  1301 
  1302     save_CFLAGS="$CFLAGS"
  1303     CFLAGS="$save_CFLAGS -mpreferred-stack-boundary=2"
  1304     AC_TRY_COMPILE([
  1305     int x = 0;
  1306     ],[
  1307     ],[
  1308     have_gcc_preferred_stack_boundary=yes
  1309     ])
  1310     AC_MSG_RESULT($have_gcc_preferred_stack_boundary)
  1311     CFLAGS="$save_CFLAGS"
  1312 
  1313     if test x$have_gcc_preferred_stack_boundary = xyes; then
  1314         EXTRA_CFLAGS="$EXTRA_CFLAGS -mpreferred-stack-boundary=2"
  1315     fi
  1316 }
  1317 
  1318 dnl See if GCC's -Wdeclaration-after-statement is supported.
  1319 dnl  This lets us catch things that would fail on a C89 compiler when using
  1320 dnl  a modern GCC.
  1321 CheckDeclarationAfterStatement()
  1322 {
  1323     AC_MSG_CHECKING(for GCC -Wdeclaration-after-statement option)
  1324     have_gcc_declaration_after_statement=no
  1325 
  1326     save_CFLAGS="$CFLAGS"
  1327     CFLAGS="$save_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1328     AC_TRY_COMPILE([
  1329     int x = 0;
  1330     ],[
  1331     ],[
  1332     have_gcc_declaration_after_statement=yes
  1333     ])
  1334     AC_MSG_RESULT($have_gcc_declaration_after_statement)
  1335     CFLAGS="$save_CFLAGS"
  1336 
  1337     if test x$have_gcc_declaration_after_statement = xyes; then
  1338         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wdeclaration-after-statement -Werror=declaration-after-statement"
  1339     fi
  1340 }
  1341 
  1342 dnl See if GCC's -Wall is supported.
  1343 CheckWarnAll()
  1344 {
  1345     AC_MSG_CHECKING(for GCC -Wall option)
  1346     have_gcc_Wall=no
  1347 
  1348     save_CFLAGS="$CFLAGS"
  1349     CFLAGS="$save_CFLAGS -Wall"
  1350     AC_TRY_COMPILE([
  1351     int x = 0;
  1352     ],[
  1353     ],[
  1354     have_gcc_Wall=yes
  1355     ])
  1356     AC_MSG_RESULT($have_gcc_Wall)
  1357     CFLAGS="$save_CFLAGS"
  1358 
  1359     if test x$have_gcc_Wall = xyes; then
  1360         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
  1361 
  1362         dnl Haiku headers use multicharacter constants all over the place. Ignore these warnings when using -Wall.
  1363         AC_MSG_CHECKING(for necessary GCC -Wno-multichar option)
  1364         need_gcc_Wno_multichar=no
  1365         case "$host" in
  1366             *-*-haiku*)
  1367                 need_gcc_Wno_multichar=yes
  1368                 ;;
  1369         esac
  1370         AC_MSG_RESULT($need_gcc_Wno_multichar)
  1371         if test x$need_gcc_Wno_multichar = xyes; then
  1372             EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-multichar"
  1373         fi
  1374     fi
  1375 }
  1376 
  1377 dnl Check for Wayland
  1378 CheckWayland()
  1379 {
  1380     AC_ARG_ENABLE(video-wayland,
  1381 AC_HELP_STRING([--enable-video-wayland], [use Wayland video driver [[default=yes]]]),
  1382                   ,enable_video_wayland=yes)
  1383 
  1384     AC_ARG_ENABLE(video-wayland-qt-touch,
  1385 AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for Wayland video driver [[default=yes]]]),
  1386                   ,enable_video_wayland_qt_touch=yes)
  1387 
  1388     if test x$enable_video = xyes -a x$enable_video_wayland = xyes; then
  1389         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1390         AC_MSG_CHECKING(for Wayland support)
  1391         video_wayland=no
  1392         if  test x$PKG_CONFIG != xno && \
  1393             test x$video_opengl_egl = xyes && \
  1394             test x$video_opengles_v2 = xyes; then
  1395             if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-protocols wayland-egl wayland-cursor egl xkbcommon ; then
  1396                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
  1397                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
  1398                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
  1399                 WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
  1400                 WAYLAND_PROTOCOLS_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-protocols`
  1401                 video_wayland=yes
  1402             fi
  1403         fi
  1404         AC_MSG_RESULT($video_wayland)
  1405 
  1406         if test x$video_wayland = xyes; then
  1407             AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND, 1, [ ])
  1408             if test x$enable_video_wayland_qt_touch = xyes; then
  1409                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
  1410             fi
  1411 
  1412             WAYLAND_PROTOCOLS_UNSTABLE="relative-pointer-unstable-v1 pointer-constraints-unstable-v1"
  1413 
  1414             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
  1415             EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
  1416             AC_ARG_ENABLE(wayland-shared,
  1417 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
  1418                           , enable_wayland_shared=maybe)
  1419 
  1420             dnl FIXME: Do BSD and OS X need special cases?
  1421             case "$host" in
  1422                 *)
  1423                     wayland_client_lib=[`find_lib "libwayland-client.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1424                     wayland_egl_lib=[`find_lib "libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1425                     if test x$wayland_egl_lib = x; then
  1426                         dnl This works in Ubuntu 13.10, maybe others
  1427                         wayland_egl_lib=[`find_lib "mesa-egl/libwayland-egl.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1428                     fi
  1429                     wayland_cursor_lib=[`find_lib "libwayland-cursor.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1430                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$WAYLAND_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1431                     ;;
  1432             esac
  1433 
  1434             if test x$enable_wayland_shared = xmaybe; then
  1435                 enable_wayland_shared=yes
  1436             fi
  1437             if test x$have_loadso != xyes && \
  1438                test x$enable_wayland_shared = xyes; then
  1439                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Wayland loading])
  1440                 enable_wayland_shared=no
  1441             fi
  1442             if test x$have_loadso = xyes && \
  1443                test x$enable_wayland_shared = xyes && \
  1444                test x$wayland_client_lib != x && \
  1445                test x$wayland_egl_lib != x && \
  1446                test x$wayland_cursor_lib != x && \
  1447                test x$xkbcommon_lib != x; then
  1448                 echo "-- dynamic libwayland-client -> $wayland_client_lib"
  1449                 echo "-- dynamic libwayland-egl -> $wayland_egl_lib"
  1450                 echo "-- dynamic libwayland-cursor -> $wayland_cursor_lib"
  1451                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1452                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC, "$wayland_client_lib", [ ])
  1453                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL, "$wayland_egl_lib", [ ])
  1454                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR, "$wayland_cursor_lib", [ ])
  1455                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1456                 SUMMARY_video="${SUMMARY_video} wayland(dynamic)"
  1457             else
  1458                 enable_wayland_shared=no
  1459                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $WAYLAND_LIBS"
  1460                 SUMMARY_video="${SUMMARY_video} wayland"
  1461             fi
  1462             have_video=yes
  1463         fi
  1464     fi
  1465 }
  1466 
  1467 dnl Check for Mir
  1468 CheckMir()
  1469 {
  1470     AC_ARG_ENABLE(video-mir,
  1471 AC_HELP_STRING([--enable-video-mir], [use Mir video driver [[default=yes]]]),
  1472                   ,enable_video_mir=yes)
  1473 
  1474     if test x$enable_video = xyes -a x$enable_video_mir = xyes; then
  1475         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  1476         AC_MSG_CHECKING(for Mir support)
  1477         video_mir=no
  1478         if test x$PKG_CONFIG != xno; then
  1479             if $PKG_CONFIG --exists mirclient egl xkbcommon ; then
  1480                 MIR_CFLAGS=`$PKG_CONFIG --cflags mirclient egl xkbcommon`
  1481                 MIR_LIBS=`$PKG_CONFIG --libs mirclient egl xkbcommon`
  1482                 save_CFLAGS="$CFLAGS"
  1483                 CFLAGS="$save_CFLAGS $MIR_CFLAGS"
  1484 
  1485                 dnl This will disable Mir if >= v0.26 is not available
  1486                 AC_TRY_COMPILE([
  1487                 #include <mir_toolkit/mir_client_library.h>
  1488                 ],[
  1489                     MirWindowAttrib attrib = mir_window_attrib_state
  1490                 ],[
  1491                 video_mir=yes
  1492                 ])
  1493                 CFLAGS="$save_CFLAGS"
  1494             fi
  1495         fi
  1496         AC_MSG_RESULT($video_mir)
  1497 
  1498         if test x$video_mir = xyes; then
  1499             AC_DEFINE(SDL_VIDEO_DRIVER_MIR, 1, [ ])
  1500             SOURCES="$SOURCES $srcdir/src/video/mir/*.c"
  1501             EXTRA_CFLAGS="$EXTRA_CFLAGS $MIR_CFLAGS"
  1502             AC_ARG_ENABLE(mir-shared,
  1503 AC_HELP_STRING([--enable-mir-shared], [dynamically load Mir support [[default=maybe]]]),
  1504                           , enable_mir_shared=maybe)
  1505 
  1506             dnl FIXME: Do BSD and OS X need special cases?
  1507             case "$host" in
  1508                 *)
  1509                     mirclient_lib=[`find_lib "libmirclient.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1510                     xkbcommon_lib=[`find_lib "libxkbcommon.so.*" "$MIR_LIBS" | sed 's/.*\/\(.*\)/\1/; q'`]
  1511                     ;;
  1512             esac
  1513 
  1514             if test x$enable_mir_shared = xmaybe; then
  1515                 enable_mir_shared=yes
  1516             fi
  1517             if test x$have_loadso != xyes && \
  1518                test x$enable_mir_shared = xyes; then
  1519                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic Mir loading])
  1520                 enable_mir_shared=no
  1521             fi
  1522             if test x$have_loadso = xyes && \
  1523                test x$enable_mir_shared = xyes && \
  1524                test x$mirclient_lib != x && \
  1525                test x$xkbcommon_lib != x; then
  1526                 echo "-- dynamic libmirclient -> $mirclient_lib"
  1527                 echo "-- dynamic libxkbcommon -> $xkbcommon_lib"
  1528                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC, "$mirclient_lib", [ ])
  1529                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON, "$xkbcommon_lib", [ ])
  1530                 SUMMARY_video="${SUMMARY_video} mir(dynamic)"
  1531             else
  1532                 enable_mir_shared=no
  1533                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $MIR_LIBS"
  1534                 SUMMARY_video="${SUMMARY_video} mir"
  1535             fi
  1536             have_video=yes
  1537         fi
  1538     fi
  1539 }
  1540 
  1541 dnl Check for Native Client stuff
  1542 CheckNativeClient()
  1543 {
  1544         AC_TRY_COMPILE([
  1545           #if !defined(__native_client__)
  1546           #error "NO NACL"
  1547           #endif
  1548         ],[
  1549         ],[
  1550         AC_DEFINE(SDL_VIDEO_DRIVER_NACL, 1, [ ])
  1551         AC_DEFINE(SDL_AUDIO_DRIVER_NACL, 1, [ ])
  1552         AC_DEFINE(HAVE_POW, 1, [ ])
  1553         AC_DEFINE(HAVE_OPENGLES2, 1, [ ])
  1554         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  1555         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  1556 
  1557         SDL_LIBS="-lppapi_simple -lppapi_gles2 $SDL_LIBS"
  1558 
  1559         SDLMAIN_SOURCES="$srcdir/src/main/nacl/*.c"
  1560         SOURCES="$SOURCES $srcdir/src/audio/nacl/*.c"
  1561         SUMMARY_audio="${SUMMARY_audio} nacl"
  1562         SOURCES="$SOURCES $srcdir/src/video/nacl/*.c"
  1563         SUMMARY_video="${SUMMARY_video} nacl opengles2"
  1564         ])
  1565 }
  1566 
  1567 
  1568 CheckRPI()
  1569 {
  1570     AC_ARG_ENABLE(video-rpi,
  1571 AC_HELP_STRING([--enable-video-rpi], [use Raspberry Pi video driver [[default=yes]]]),
  1572                   , enable_video_rpi=yes)
  1573     if test x$enable_video = xyes -a x$enable_video_rpi = xyes; then
  1574         if test x$ARCH = xnetbsd; then
  1575             RPI_CFLAGS="-I/usr/pkg/include -I/usr/pkg/include/interface/vcos/pthreads -I/usr/pkg/include/interface/vmcs_host/linux"
  1576             RPI_LDFLAGS="-Wl,-R/usr/pkg/lib -L/usr/pkg/lib -lbcm_host"
  1577         else
  1578             RPI_CFLAGS="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads -I/opt/vc/include/interface/vmcs_host/linux"
  1579             RPI_LDFLAGS="-L/opt/vc/lib -lbcm_host"
  1580         fi
  1581 
  1582         # Save the original compiler flags and libraries
  1583         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  1584 
  1585         # Add the Raspberry Pi compiler flags and libraries
  1586         CFLAGS="$CFLAGS $RPI_CFLAGS"; LIBS="$LIBS $RPI_LDFLAGS"
  1587 
  1588         AC_MSG_CHECKING(for Raspberry Pi)
  1589         have_video_rpi=no
  1590         AC_TRY_LINK([
  1591           #include <bcm_host.h>
  1592         ],[
  1593           bcm_host_init();
  1594         ],[
  1595         have_video_rpi=yes
  1596         ],[
  1597         ])
  1598         AC_MSG_RESULT($have_video_rpi)
  1599 
  1600         # Restore the compiler flags and libraries
  1601         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  1602         
  1603         if test x$have_video_rpi = xyes; then
  1604             CFLAGS="$CFLAGS $RPI_CFLAGS"
  1605             SDL_CFLAGS="$SDL_CFLAGS $RPI_CFLAGS"
  1606             EXTRA_CFLAGS="$EXTRA_CFLAGS $RPI_CFLAGS"
  1607             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $RPI_LDFLAGS"
  1608             SOURCES="$SOURCES $srcdir/src/video/raspberry/*.c"
  1609             AC_DEFINE(SDL_VIDEO_DRIVER_RPI, 1, [ ])
  1610             SUMMARY_video="${SUMMARY_video} rpi"
  1611         fi
  1612     fi
  1613 }
  1614 
  1615 dnl Find the X11 include and library directories
  1616 CheckX11()
  1617 {
  1618     AC_ARG_ENABLE(video-x11,
  1619 AC_HELP_STRING([--enable-video-x11], [use X11 video driver [[default=yes]]]),
  1620                   , enable_video_x11=yes)
  1621     if test x$enable_video = xyes -a x$enable_video_x11 = xyes; then
  1622         case "$host" in
  1623             *-*-darwin*)
  1624                 # This isn't necessary for X11, but fixes GLX detection
  1625                 if test "x$x_includes" = xNONE && \
  1626                    test "x$x_libraries" = xNONE && \
  1627                    test -d /usr/X11R6/include && \
  1628                    test -d /usr/X11R6/lib; then
  1629                     x_includes="/usr/X11R6/include"
  1630                     x_libraries="/usr/X11R6/lib"
  1631                 fi
  1632                 ;;
  1633         esac
  1634         AC_PATH_X
  1635         AC_PATH_XTRA
  1636         if test x$have_x = xyes; then
  1637             AC_ARG_ENABLE(x11-shared,
  1638 AC_HELP_STRING([--enable-x11-shared], [dynamically load X11 support [[default=maybe]]]),
  1639                           , enable_x11_shared=maybe)
  1640 
  1641             case "$host" in
  1642                 *-*-darwin*)
  1643                     x11_lib='/usr/X11R6/lib/libX11.6.dylib'
  1644                     x11ext_lib='/usr/X11R6/lib/libXext.6.dylib'
  1645                     xcursor_lib='/usr/X11R6/lib/libXcursor.1.dylib'
  1646                     xinerama_lib='/usr/X11R6/lib/libXinerama.1.dylib'
  1647                     xinput_lib='/usr/X11R6/lib/libXi.6.dylib'
  1648                     xrandr_lib='/usr/X11R6/lib/libXrandr.2.dylib'
  1649                     xrender_lib='/usr/X11R6/lib/libXrender.1.dylib'
  1650                     xss_lib='/usr/X11R6/lib/libXss.1.dylib'
  1651                     xvidmode_lib='/usr/X11R6/lib/libXxf86vm.1.dylib'
  1652                     ;;
  1653                 *-*-openbsd*)
  1654                     x11_lib='libX11.so'
  1655                     x11ext_lib='libXext.so'
  1656                     xcursor_lib='libXcursor.so'
  1657                     xinerama_lib='libXinerama.so'
  1658                     xinput_lib='libXi.so'
  1659                     xrandr_lib='libXrandr.so'
  1660                     xrender_lib='libXrender.so'
  1661                     xss_lib='libXss.so'
  1662                     xvidmode_lib='libXxf86vm.so'
  1663                     ;;
  1664                 *)
  1665                     x11_lib=[`find_lib "libX11.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1666                     x11ext_lib=[`find_lib "libXext.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1667                     xcursor_lib=[`find_lib "libXcursor.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1668                     xinerama_lib=[`find_lib "libXinerama.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1669                     xinput_lib=[`find_lib "libXi.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1670                     xrandr_lib=[`find_lib "libXrandr.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1671                     xrender_lib=[`find_lib "libXrender.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1672                     xss_lib=[`find_lib "libXss.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1673                     xvidmode_lib=[`find_lib "libXxf86vm.so.*" "$X_LIBS -L/usr/X11/$base_libdir -L/usr/X11R6/$base_libdir" | sed 's/.*\/\(.*\)/\1/; q'`]
  1674                     ;;
  1675             esac
  1676 
  1677             if test x$ac_cv_func_shmat != xyes; then
  1678                 X_CFLAGS="$X_CFLAGS -DNO_SHARED_MEMORY"
  1679             fi
  1680             CFLAGS="$CFLAGS $X_CFLAGS"
  1681             LDFLAGS="$LDFLAGS $X_LIBS"
  1682 
  1683             AC_CHECK_HEADER(X11/extensions/Xext.h,
  1684                             have_xext_h_hdr=yes,
  1685                             have_xext_h_hdr=no,
  1686                             [#include <X11/Xlib.h>
  1687                              #include <X11/Xproto.h>
  1688                             ])
  1689             if test x$have_xext_h_hdr != xyes; then
  1690                AC_MSG_ERROR([
  1691 *** Missing Xext.h, maybe you need to install the libxext-dev package?
  1692                ])
  1693             fi
  1694 
  1695             AC_DEFINE(SDL_VIDEO_DRIVER_X11, 1, [ ])
  1696             SOURCES="$SOURCES $srcdir/src/video/x11/*.c"
  1697             EXTRA_CFLAGS="$EXTRA_CFLAGS $X_CFLAGS"
  1698 
  1699             # Needed so SDL applications can include SDL_syswm.h
  1700             SDL_CFLAGS="$SDL_CFLAGS $X_CFLAGS"
  1701 
  1702             if test x$enable_x11_shared = xmaybe; then
  1703                 enable_x11_shared=yes
  1704             fi
  1705             if test x$have_loadso != xyes && \
  1706                test x$enable_x11_shared = xyes; then
  1707                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic X11 loading])
  1708                 enable_x11_shared=no
  1709             fi
  1710             if test x$have_loadso = xyes && \
  1711                test x$enable_x11_shared = xyes && test x$x11_lib != x && test x$x11ext_lib != x; then
  1712                 echo "-- dynamic libX11 -> $x11_lib"
  1713                 echo "-- dynamic libX11ext -> $x11ext_lib"
  1714                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC, "$x11_lib", [ ])
  1715                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT, "$x11ext_lib", [ ])
  1716                 SUMMARY_video="${SUMMARY_video} x11(dynamic)"
  1717             else
  1718                 enable_x11_shared=no
  1719                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $X_LIBS -lX11 -lXext"
  1720                 SUMMARY_video="${SUMMARY_video} x11"
  1721             fi
  1722             have_video=yes
  1723 
  1724             AC_MSG_CHECKING(for const parameter to XextAddDisplay)
  1725             have_const_param_XextAddDisplay=no
  1726             AC_TRY_COMPILE([
  1727               #include <X11/Xlib.h>
  1728               #include <X11/Xproto.h>
  1729               #include <X11/extensions/Xext.h>
  1730               #include <X11/extensions/extutil.h>
  1731               extern XExtDisplayInfo* XextAddDisplay(XExtensionInfo* a,Display* b,_Xconst char* c,XExtensionHooks* d,int e,XPointer f);
  1732             ],[
  1733             ],[
  1734             have_const_param_XextAddDisplay=yes
  1735             AC_DEFINE([SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY], 1, [ ])
  1736             ])
  1737             AC_MSG_RESULT($have_const_param_XextAddDisplay)
  1738 
  1739             dnl AC_CHECK_LIB(X11, XGetEventData, AC_DEFINE(SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS, 1, [Have XGenericEvent]))
  1740             AC_MSG_CHECKING([for XGenericEvent])
  1741             have_XGenericEvent=no
  1742             AC_TRY_COMPILE([
  1743               	#include <X11/Xlib.h>
  1744             ],[
  1745 Display *display;
  1746 XEvent event;
  1747 XGenericEventCookie *cookie = &event.xcookie;
  1748 XNextEvent(display, &event);
  1749 XGetEventData(display, cookie);
  1750 XFreeEventData(display, cookie);
  1751             ],[
  1752                 have_XGenericEvent=yes
  1753                 AC_DEFINE([SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS], 1, [ ])
  1754             ])
  1755             AC_MSG_RESULT($have_XGenericEvent)
  1756 
  1757             AC_CHECK_LIB(X11, XkbKeycodeToKeysym, AC_DEFINE(SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM, 1, [Have XkbKeycodeToKeysym]))
  1758 
  1759             AC_ARG_ENABLE(video-x11-xcursor,
  1760 AC_HELP_STRING([--enable-video-x11-xcursor], [enable X11 Xcursor support [[default=yes]]]),
  1761                             , enable_video_x11_xcursor=yes)
  1762             if test x$enable_video_x11_xcursor = xyes; then
  1763                 definitely_enable_video_x11_xcursor=no
  1764                 AC_CHECK_HEADER(X11/Xcursor/Xcursor.h,
  1765                                 have_xcursor_h_hdr=yes,
  1766                                 have_xcursor_h_hdr=no,
  1767                                 [#include <X11/Xlib.h>
  1768                                 ])
  1769                 if test x$have_xcursor_h_hdr = xyes; then
  1770                     if test x$enable_x11_shared = xyes && test x$xcursor_lib != x ; then
  1771                         echo "-- dynamic libXcursor -> $xcursor_lib"
  1772                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR, "$xcursor_lib", [ ])
  1773                         definitely_enable_video_x11_xcursor=yes
  1774                     else
  1775                         AC_CHECK_LIB(Xcursor, XcursorImageCreate, have_xcursor_lib=yes)
  1776                         if test x$have_xcursor_lib = xyes ; then
  1777                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXcursor"
  1778                             definitely_enable_video_x11_xcursor=yes
  1779                         fi
  1780                     fi
  1781                 fi
  1782             fi
  1783             if test x$definitely_enable_video_x11_xcursor = xyes; then
  1784                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XCURSOR, 1, [ ])
  1785                 SUMMARY_video_x11="${SUMMARY_video_x11} xcursor"
  1786             fi
  1787             AC_ARG_ENABLE(video-x11-xdbe,
  1788 AC_HELP_STRING([--enable-video-x11-xdbe], [enable X11 Xdbe support [[default=yes]]]),
  1789                             , enable_video_x11_xdbe=yes)
  1790             if test x$enable_video_x11_xdbe = xyes; then
  1791                 AC_CHECK_HEADER(X11/extensions/Xdbe.h,
  1792                                 have_dbe_h_hdr=yes,
  1793                                 have_dbe_h_hdr=no,
  1794                                 [#include <X11/Xlib.h>
  1795                                 ])
  1796                 if test x$have_dbe_h_hdr = xyes; then
  1797                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XDBE, 1, [ ])
  1798                     SUMMARY_video_x11="${SUMMARY_video_x11} xdbe"
  1799                 fi
  1800             fi
  1801             AC_ARG_ENABLE(video-x11-xinerama,
  1802 AC_HELP_STRING([--enable-video-x11-xinerama], [enable X11 Xinerama support [[default=yes]]]),
  1803                             , enable_video_x11_xinerama=yes)
  1804             if test x$enable_video_x11_xinerama = xyes; then
  1805                 definitely_enable_video_x11_xinerama=no
  1806                 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
  1807                                 have_xinerama_h_hdr=yes,
  1808                                 have_xinerama_h_hdr=no,
  1809                                 [#include <X11/Xlib.h>
  1810                                 ])
  1811                 if test x$have_xinerama_h_hdr = xyes; then
  1812                     if test x$enable_x11_shared = xyes && test x$xinerama_lib != x ; then
  1813                         echo "-- dynamic libXinerama -> $xinerama_lib"
  1814                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA, "$xinerama_lib", [ ])
  1815                         definitely_enable_video_x11_xinerama=yes
  1816                     else
  1817                         AC_CHECK_LIB(Xinerama, XineramaQueryExtension, have_xinerama_lib=yes)
  1818                         if test x$have_xinerama_lib = xyes ; then
  1819                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXinerama"
  1820                             definitely_enable_video_x11_xinerama=yes
  1821                         fi
  1822                     fi
  1823                 fi
  1824             fi
  1825             if test x$definitely_enable_video_x11_xinerama = xyes; then
  1826                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINERAMA, 1, [ ])
  1827                 SUMMARY_video_x11="${SUMMARY_video_x11} xinerama"
  1828             fi
  1829             AC_ARG_ENABLE(video-x11-xinput,
  1830 AC_HELP_STRING([--enable-video-x11-xinput], [enable X11 XInput extension for manymouse, tablets, etc [[default=yes]]]),
  1831                             , enable_video_x11_xinput=yes)
  1832             if test x$enable_video_x11_xinput = xyes; then
  1833                 definitely_enable_video_x11_xinput=no
  1834                 AC_CHECK_HEADER(X11/extensions/XInput2.h,
  1835                                 have_xinput_h_hdr=yes,
  1836                                 have_xinput_h_hdr=no,
  1837                                 [#include <X11/Xlib.h>
  1838                                 ])
  1839                 if test x$have_xinput_h_hdr = xyes; then
  1840                     if test x$enable_x11_shared = xyes && test x$xinput_lib != x ; then
  1841                         echo "-- dynamic libXi -> $xinput_lib"
  1842                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2, "$xinput_lib", [ ])
  1843                         definitely_enable_video_x11_xinput=yes
  1844                     else
  1845                         AC_CHECK_LIB(Xi, XOpenDevice, have_xinput_lib=yes)
  1846                         if test x$have_xinput_lib = xyes ; then
  1847                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXi"
  1848                             definitely_enable_video_x11_xinput=yes
  1849                         fi
  1850                     fi
  1851                 fi
  1852             fi
  1853             if test x$definitely_enable_video_x11_xinput = xyes; then
  1854                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2"
  1855                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2, 1, [ ])
  1856                 AC_MSG_CHECKING(for xinput2 multitouch)
  1857             	have_xinput2_multitouch=no
  1858             	AC_TRY_COMPILE([
  1859               		#include <X11/Xlib.h>
  1860              		#include <X11/Xproto.h>
  1861 			#include <X11/extensions/XInput2.h>
  1862             	],[
  1863 int event_type = XI_TouchBegin;
  1864 XITouchClassInfo *t;
  1865             	],[
  1866             	have_xinput2_multitouch=yes
  1867             	AC_DEFINE([SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH], 1, [])
  1868                 SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
  1869             	])
  1870             	AC_MSG_RESULT($have_xinput2_multitouch)
  1871             fi
  1872             AC_ARG_ENABLE(video-x11-xrandr,
  1873 AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for fullscreen [[default=yes]]]),
  1874                             , enable_video_x11_xrandr=yes)
  1875             if test x$enable_video_x11_xrandr = xyes; then
  1876                 dnl XRRScreenResources is only present in Xrandr >= 1.2, we use that as a test.
  1877                 definitely_enable_video_x11_xrandr=no
  1878                 have_xrandr_h_hdr=no
  1879                 AC_TRY_COMPILE([
  1880                 #include <X11/Xlib.h>
  1881                 #include <X11/extensions/Xrandr.h>
  1882                 ],[
  1883                 XRRScreenResources *res = NULL;
  1884                 ],[
  1885                 have_xrandr_h_hdr=yes
  1886                 ])
  1887                 if test x$have_xrandr_h_hdr = xyes; then
  1888                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then
  1889                         echo "-- dynamic libXrandr -> $xrandr_lib"
  1890                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR, "$xrandr_lib", [ ])
  1891                         definitely_enable_video_x11_xrandr=yes
  1892                     else
  1893                         AC_CHECK_LIB(Xrandr, XRRQueryExtension, have_xrandr_lib=yes)
  1894                         if test x$have_xrandr_lib = xyes ; then
  1895                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXrandr"
  1896                             definitely_enable_video_x11_xrandr=yes
  1897                         fi
  1898                     fi
  1899                 fi
  1900             fi
  1901             if test x$definitely_enable_video_x11_xrandr = xyes; then
  1902                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XRANDR, 1, [ ])
  1903                 SUMMARY_video_x11="${SUMMARY_video_x11} xrandr"
  1904             fi
  1905             AC_ARG_ENABLE(video-x11-scrnsaver,
  1906 AC_HELP_STRING([--enable-video-x11-scrnsaver], [enable X11 screensaver extension [[default=yes]]]),
  1907                             , enable_video_x11_scrnsaver=yes)
  1908             if test x$enable_video_x11_scrnsaver = xyes; then
  1909                 AC_CHECK_HEADER(X11/extensions/scrnsaver.h,
  1910                                 have_scrnsaver_h_hdr=yes,
  1911                                 have_scrnsaver_h_hdr=no,
  1912                                 [#include <X11/Xlib.h>
  1913                                 ])
  1914                 if test x$have_scrnsaver_h_hdr = xyes; then
  1915                     if test x$enable_x11_shared = xyes && test x$xss_lib != x ; then
  1916                         echo "-- dynamic libXss -> $xss_lib"
  1917                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS, "$xss_lib", [ ])
  1918                         definitely_enable_video_x11_scrnsaver=yes
  1919                     else
  1920                         AC_CHECK_LIB(Xss, XScreenSaverSuspend, have_xss_lib=yes)
  1921                         if test x$have_xss_lib = xyes ; then
  1922                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXss"
  1923                             definitely_enable_video_x11_scrnsaver=yes
  1924                         fi
  1925                     fi
  1926                 fi
  1927             fi
  1928             if test x$definitely_enable_video_x11_scrnsaver = xyes; then
  1929                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSCRNSAVER, 1, [ ])
  1930                 SUMMARY_video_x11="${SUMMARY_video_x11} xscrnsaver"
  1931             fi
  1932             AC_ARG_ENABLE(video-x11-xshape,
  1933 AC_HELP_STRING([--enable-video-x11-xshape], [enable X11 XShape support [[default=yes]]]),
  1934                             , enable_video_x11_xshape=yes)
  1935             if test x$enable_video_x11_xshape = xyes; then
  1936                 AC_CHECK_HEADER(X11/extensions/shape.h,
  1937                                 have_shape_h_hdr=yes,
  1938                                 have_shape_h_hdr=no,
  1939                                 [#include <X11/Xlib.h>
  1940                                 ])
  1941                 if test x$have_shape_h_hdr = xyes; then
  1942                     AC_DEFINE(SDL_VIDEO_DRIVER_X11_XSHAPE, 1, [ ])
  1943                     SUMMARY_video_x11="${SUMMARY_video_x11} xshape"
  1944                 fi
  1945             fi
  1946             AC_ARG_ENABLE(video-x11-vm,
  1947 AC_HELP_STRING([--enable-video-x11-vm], [use X11 VM extension for fullscreen [[default=yes]]]),
  1948                             , enable_video_x11_vm=yes)
  1949             if test x$enable_video_x11_vm = xyes; then
  1950                 definitely_enable_video_x11_vm=no
  1951                 AC_CHECK_HEADER(X11/extensions/xf86vmode.h,
  1952                                 have_vm_h_hdr=yes,
  1953                                 have_vm_h_hdr=no,
  1954                                 [#include <X11/Xlib.h>
  1955                                 ])
  1956                 if test x$have_vm_h_hdr = xyes; then
  1957                     if test x$enable_x11_shared = xyes && test x$xvidmode_lib != x ; then
  1958                         echo "-- dynamic libXxf86vm -> $xvidmode_lib"
  1959                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE, "$xvidmode_lib", [ ])
  1960                         definitely_enable_video_x11_vm=yes
  1961                     else
  1962                         AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, have_vm_lib=yes)
  1963                         if test x$have_vm_lib = xyes ; then
  1964                             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lXxf86vm"
  1965                             definitely_enable_video_x11_vm=yes
  1966                         fi
  1967                     fi
  1968                 fi
  1969             fi
  1970             if test x$definitely_enable_video_x11_vm = xyes; then
  1971                 AC_DEFINE(SDL_VIDEO_DRIVER_X11_XVIDMODE, 1, [ ])
  1972                 SUMMARY_video_x11="${SUMMARY_video_x11} xvidmode"
  1973             fi
  1974         fi
  1975     fi
  1976 }
  1977 
  1978 dnl Set up the Vivante video driver if enabled
  1979 CheckVivanteVideo()
  1980 {
  1981     AC_ARG_ENABLE(video-vivante,
  1982 AC_HELP_STRING([--enable-video-vivante], [use Vivante EGL video driver [[default=yes]]]),
  1983                   , enable_video_vivante=yes)
  1984     if test x$enable_video = xyes -a x$enable_video_vivante = xyes; then
  1985         AC_MSG_CHECKING(for Vivante VDK API)
  1986         have_vivante_vdk=no
  1987         AC_TRY_COMPILE([
  1988           #define LINUX
  1989           #define EGL_API_FB
  1990           #include <gc_vdk.h>
  1991         ],[
  1992         ],[
  1993         have_vivante_vdk=yes
  1994         ])
  1995         AC_MSG_RESULT($have_vivante_vdk)
  1996 
  1997         AC_MSG_CHECKING(for Vivante FB API)
  1998         have_vivante_egl=no
  1999         AC_TRY_COMPILE([
  2000           #define LINUX
  2001           #define EGL_API_FB
  2002           #include <EGL/eglvivante.h>
  2003         ],[
  2004         ],[
  2005         have_vivante_egl=yes
  2006         ])
  2007         AC_MSG_RESULT($have_vivante_egl)
  2008 
  2009         if test x$have_vivante_vdk = xyes -o x$have_vivante_egl = xyes; then
  2010             AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE, 1, [ ])
  2011             EXTRA_CFLAGS="$EXTRA_CFLAGS -DLINUX -DEGL_API_FB"
  2012             if test x$have_vivante_vdk = xyes; then
  2013                 AC_DEFINE(SDL_VIDEO_DRIVER_VIVANTE_VDK, 1, [ ])
  2014                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lVDK"
  2015             fi
  2016             SOURCES="$SOURCES $srcdir/src/video/vivante/*.c"
  2017             SUMMARY_video="${SUMMARY_video} vivante"
  2018             have_video=yes
  2019         fi
  2020     fi
  2021 }
  2022 
  2023 dnl Set up the Haiku video driver if enabled
  2024 CheckHaikuVideo()
  2025 {
  2026     if test x$enable_video = xyes; then
  2027         AC_DEFINE(SDL_VIDEO_DRIVER_HAIKU, 1, [ ])
  2028         SOURCES="$SOURCES $srcdir/src/video/haiku/*.cc"
  2029         have_video=yes
  2030         SUMMARY_video="${SUMMARY_video} haiku"
  2031     fi
  2032 }
  2033 
  2034 dnl Set up the Cocoa video driver for Mac OS X (but not Darwin)
  2035 CheckCOCOA()
  2036 {
  2037     AC_ARG_ENABLE(video-cocoa,
  2038 AC_HELP_STRING([--enable-video-cocoa], [use Cocoa video driver [[default=yes]]]),
  2039                   , enable_video_cocoa=yes)
  2040     if test x$enable_video = xyes -a x$enable_video_cocoa = xyes; then
  2041         save_CFLAGS="$CFLAGS"
  2042         dnl Work around that we don't have Objective-C support in autoconf
  2043         CFLAGS="$CFLAGS -x objective-c"
  2044         AC_MSG_CHECKING(for Cocoa framework)
  2045         have_cocoa=no
  2046         AC_TRY_COMPILE([
  2047           #import <Cocoa/Cocoa.h>
  2048         ],[
  2049         ],[
  2050         have_cocoa=yes
  2051         ])
  2052         AC_MSG_RESULT($have_cocoa)
  2053         CFLAGS="$save_CFLAGS"
  2054         if test x$have_cocoa = xyes; then
  2055             AC_DEFINE(SDL_VIDEO_DRIVER_COCOA, 1, [ ])
  2056             SOURCES="$SOURCES $srcdir/src/video/cocoa/*.m"
  2057             SUMMARY_video="${SUMMARY_video} cocoa"
  2058             have_video=yes
  2059         fi
  2060     fi
  2061 }
  2062 
  2063 CheckMETAL()
  2064 {
  2065     AC_ARG_ENABLE(render-metal,
  2066 AC_HELP_STRING([--enable-render-metal], [enable the Metal render driver [[default=yes]]]),
  2067                                 , enable_render_metal=yes)
  2068     if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  2069         dnl This should maybe make sure you have a supported SDK version.
  2070         AC_DEFINE(SDL_VIDEO_RENDER_METAL, 1, [ ])
  2071         SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
  2072         SUMMARY_video="${SUMMARY_video} metal"
  2073     fi
  2074 }
  2075 
  2076 
  2077 dnl Find DirectFB
  2078 CheckDirectFB()
  2079 {
  2080     AC_ARG_ENABLE(video-directfb,
  2081 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2082                   , enable_video_directfb=no)
  2083     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2084         video_directfb=no
  2085 
  2086         DIRECTFB_REQUIRED_VERSION=1.0.0
  2087         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2088         if test x$DIRECTFBCONFIG = xno; then
  2089             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2090             if test x$PKG_CONFIG != xno; then
  2091                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2092                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2093                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2094                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2095                     video_directfb=yes
  2096                 fi
  2097             fi
  2098         else
  2099             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2100             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2101             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2102             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2103             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2104                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2105                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2106                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2107                 video_directfb=yes
  2108             fi
  2109         fi
  2110         if test x$video_directfb = xyes; then
  2111             # SuSE 11.1 installs directfb-config without directfb-devel
  2112             save_CPPFLAGS="$CPPFLAGS"
  2113             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2114             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2115             CPPFLAGS="$save_CPPFLAGS"
  2116             video_directfb=$have_directfb_hdr
  2117         fi
  2118         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2119         AC_MSG_RESULT($video_directfb)
  2120 
  2121         if test x$video_directfb = xyes; then
  2122             AC_ARG_ENABLE(directfb-shared,
  2123 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2124                               , enable_directfb_shared=yes)
  2125 
  2126             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2127             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2128             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2129 
  2130             AC_MSG_CHECKING(for directfb dynamic loading support)
  2131             directfb_shared=no
  2132             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2133             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2134 AC_MSG_WARN("directfb $directfb_lib")
  2135             if test x$have_loadso != xyes && \
  2136                test x$enable_directfb_shared = xyes; then
  2137                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2138             fi
  2139             if test x$have_loadso = xyes && \
  2140                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2141                 directfb_shared=yes
  2142                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2143                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2144                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2145             else
  2146                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2147                 SUMMARY_video="${SUMMARY_video} directfb"
  2148             fi
  2149             AC_MSG_RESULT($directfb_shared)
  2150             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2151             have_video=yes
  2152         fi
  2153     fi
  2154 }
  2155 
  2156 dnl Find KMSDRM
  2157 CheckKMSDRM()
  2158 {
  2159     AC_ARG_ENABLE(video-kmsdrm,
  2160 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2161                   , enable_video_kmsdrm=no)
  2162 
  2163     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2164         video_kmsdrm=no
  2165         libdrm_avail=no
  2166         libgbm_avail=no
  2167 
  2168         LIBDRM_REQUIRED_VERSION=2.4.46
  2169         LIBGBM_REQUIRED_VERSION=9.0.0
  2170 
  2171         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2172         if test x$PKG_CONFIG != xno; then
  2173             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2174                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2175                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2176                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2177                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2178                     libdrm_avail=yes
  2179                 fi
  2180                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2181                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2182                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2183                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2184                     libgbm_avail=yes
  2185                 fi
  2186                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2187                     video_kmsdrm=yes
  2188                 fi
  2189  
  2190                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2191                 AC_MSG_RESULT($libdrm_avail)
  2192                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2193                 AC_MSG_RESULT($libgbm_avail)
  2194 
  2195                 if test x$video_kmsdrm = xyes; then
  2196                     AC_ARG_ENABLE(kmsdrm-shared,
  2197 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2198                               , enable_kmsdrm_shared=yes)
  2199 
  2200                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2201                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2202                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2203 
  2204                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2205                     kmsdrm_shared=no
  2206                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2207                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2208                     if test x$have_loadso != xyes && \
  2209                        test x$enable_kmsdrm_shared = xyes; then
  2210                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2211                     fi
  2212                     if test x$have_loadso = xyes && \
  2213                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2214                         kmsdrm_shared=yes
  2215                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2216                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2217                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2218                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2219                     else
  2220                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2221                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2222                     fi
  2223                     AC_MSG_RESULT($kmsdrm_shared)
  2224                     have_video=yes
  2225                 fi
  2226             fi
  2227         fi
  2228     fi
  2229 }
  2230 
  2231 dnl rcg04172001 Set up the Null video driver.
  2232 CheckDummyVideo()
  2233 {
  2234     AC_ARG_ENABLE(video-dummy,
  2235 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2236                   , enable_video_dummy=yes)
  2237     if test x$enable_video_dummy = xyes; then
  2238         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2239         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2240         have_video=yes
  2241         SUMMARY_video="${SUMMARY_video} dummy"
  2242     fi
  2243 }
  2244 
  2245 dnl Set up the QNX video driver if enabled
  2246 CheckQNXVideo()
  2247 {
  2248     if test x$enable_video = xyes; then
  2249         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2250         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2251         have_video=yes
  2252         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2253         SUMMARY_video="${SUMMARY_video} qnx"
  2254     fi
  2255 }
  2256 
  2257 dnl Set up the QNX audio driver if enabled
  2258 CheckQNXAudio()
  2259 {
  2260     if test x$enable_audio = xyes; then
  2261         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2262         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2263         have_audio=yes
  2264         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2265         SUMMARY_audio="${SUMMARY_audio} qsa"
  2266     fi
  2267 }
  2268 
  2269 dnl Check to see if OpenGL support is desired
  2270 AC_ARG_ENABLE(video-opengl,
  2271 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2272               , enable_video_opengl=yes)
  2273 
  2274 dnl Find OpenGL
  2275 CheckOpenGLX11()
  2276 {
  2277     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2278         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2279         video_opengl=no
  2280         AC_TRY_COMPILE([
  2281          #include <GL/gl.h>
  2282          #include <GL/glx.h>
  2283         ],[
  2284         ],[
  2285         video_opengl=yes
  2286         ])
  2287         AC_MSG_RESULT($video_opengl)
  2288         if test x$video_opengl = xyes; then
  2289             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2290             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2291             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2292             SUMMARY_video="${SUMMARY_video} opengl"
  2293         fi
  2294     fi
  2295 }
  2296 
  2297 dnl Check to see if OpenGL ES support is desired
  2298 AC_ARG_ENABLE(video-opengles,
  2299 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2300               , enable_video_opengles=yes)
  2301 AC_ARG_ENABLE(video-opengles1,
  2302 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2303               , enable_video_opengles1=yes)
  2304 AC_ARG_ENABLE(video-opengles2,
  2305 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2306               , enable_video_opengles2=yes)
  2307 
  2308 dnl Find OpenGL ES
  2309 CheckOpenGLESX11()
  2310 {
  2311     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2312         AC_MSG_CHECKING(for EGL support)
  2313         video_opengl_egl=no
  2314         AC_TRY_COMPILE([
  2315           #define LINUX
  2316           #define EGL_API_FB
  2317           #include <EGL/egl.h>
  2318           #include <EGL/eglext.h>
  2319         ],[
  2320         ],[
  2321         video_opengl_egl=yes
  2322         ])
  2323         AC_MSG_RESULT($video_opengl_egl)
  2324         if test x$video_opengl_egl = xyes; then
  2325             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2326         fi
  2327             
  2328         if test x$enable_video_opengles1 = xyes; then
  2329             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2330             video_opengles_v1=no
  2331             AC_TRY_COMPILE([
  2332              #include <GLES/gl.h>
  2333              #include <GLES/glext.h>
  2334             ],[
  2335             ],[
  2336             video_opengles_v1=yes
  2337             ])
  2338             AC_MSG_RESULT($video_opengles_v1)
  2339             if test x$video_opengles_v1 = xyes; then
  2340                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2341                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2342                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2343             fi
  2344         fi
  2345         
  2346         if test x$enable_video_opengles2 = xyes; then
  2347             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2348             video_opengles_v2=no
  2349             AC_TRY_COMPILE([
  2350              #include <GLES2/gl2.h>
  2351              #include <GLES2/gl2ext.h>
  2352             ],[
  2353             ],[
  2354             video_opengles_v2=yes
  2355             ])
  2356             AC_MSG_RESULT($video_opengles_v2)
  2357             if test x$video_opengles_v2 = xyes; then
  2358                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2359                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2360                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2361             fi
  2362         fi
  2363     fi
  2364 }
  2365 
  2366 dnl Check for Windows OpenGL
  2367 CheckWINDOWSGL()
  2368 {
  2369     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2370         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2371         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2372         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2373         SUMMARY_video="${SUMMARY_video} opengl"
  2374     fi
  2375 }
  2376 
  2377 dnl Check for Windows OpenGL
  2378 CheckWINDOWSGLES()
  2379 {
  2380     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2381 
  2382         AC_MSG_CHECKING(for EGL support)
  2383         video_opengl_egl=no
  2384         AC_TRY_COMPILE([
  2385          #include <EGL/egl.h>
  2386         ],[
  2387         ],[
  2388         video_opengl_egl=yes
  2389         ])
  2390         AC_MSG_RESULT($video_opengl_egl)
  2391         if test x$video_opengl_egl = xyes; then
  2392             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2393             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2394             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2395         fi
  2396        
  2397         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2398         video_opengles_v2=no
  2399         AC_TRY_COMPILE([
  2400          #include <GLES2/gl2.h>
  2401          #include <GLES2/gl2ext.h>
  2402         ],[
  2403         ],[
  2404         video_opengles_v2=yes
  2405         ])
  2406         AC_MSG_RESULT($video_opengles_v2)
  2407         if test x$video_opengles_v2 = xyes; then
  2408             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2409             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2410             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2411             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2412         fi
  2413     fi
  2414 }
  2415 
  2416 dnl Check for Haiku OpenGL
  2417 CheckHaikuGL()
  2418 {
  2419     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2420         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2421         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2422         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2423         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2424         SUMMARY_video="${SUMMARY_video} opengl"
  2425     fi
  2426 }
  2427 
  2428 dnl Check for MacOS OpenGL
  2429 CheckMacGL()
  2430 {
  2431     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2432         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2433         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2434         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2435         SUMMARY_video="${SUMMARY_video} opengl"
  2436     fi
  2437 }
  2438 
  2439 CheckEmscriptenGLES()
  2440 {
  2441     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2442         AC_MSG_CHECKING(for EGL support)
  2443         video_opengl_egl=no
  2444         AC_TRY_COMPILE([
  2445          #include <EGL/egl.h>
  2446         ],[
  2447         ],[
  2448         video_opengl_egl=yes
  2449         ])
  2450         AC_MSG_RESULT($video_opengl_egl)
  2451         if test x$video_opengl_egl = xyes; then
  2452             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2453         fi
  2454 
  2455         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2456         video_opengles_v2=no
  2457         AC_TRY_COMPILE([
  2458          #include <GLES2/gl2.h>
  2459          #include <GLES2/gl2ext.h>
  2460         ],[
  2461         ],[
  2462         video_opengles_v2=yes
  2463         ])
  2464         AC_MSG_RESULT($video_opengles_v2)
  2465         if test x$video_opengles_v2 = xyes; then
  2466             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2467             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2468             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2469         fi
  2470     fi
  2471 }
  2472 
  2473 dnl Check to see if Vulkan support is desired
  2474 AC_ARG_ENABLE(video-vulkan,
  2475 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2476               , enable_video_vulkan=yes)
  2477 
  2478 dnl Find Vulkan Header
  2479 CheckVulkan()
  2480 {
  2481     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2482         case "$host" in
  2483             *-*-android*)
  2484                 AC_TRY_COMPILE([
  2485                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2486                   #error Vulkan doesn't work on this configuration
  2487                   #endif
  2488                 ],[
  2489                 ],[
  2490                 ],[
  2491                     enable_video_vulkan=no
  2492                 ])
  2493                 ;;
  2494             *-*-darwin*)
  2495                 save_CFLAGS="$CFLAGS"
  2496                 dnl Work around that we don't have Objective-C support in autoconf
  2497                 CFLAGS="$CFLAGS -x objective-c"
  2498                 AC_TRY_COMPILE([
  2499                   #include <Cocoa/Cocoa.h>
  2500                   #include <Metal/Metal.h>
  2501                   #include <QuartzCore/CAMetalLayer.h>
  2502 
  2503                   #if !TARGET_CPU_X86_64
  2504                   #error Vulkan doesn't work on this configuration
  2505                   #endif
  2506                 ],[
  2507                 ],[
  2508                 ],[
  2509                     enable_video_vulkan=no
  2510                 ])
  2511                 CFLAGS="$save_CFLAGS"
  2512                 ;;
  2513             *)
  2514                 ;;
  2515         esac
  2516         if test x$enable_video_vulkan = xno; then
  2517             # For reasons I am totally unable to see, I get an undefined macro error if
  2518             # I put this in the AC_TRY_COMPILE.
  2519             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2520         fi
  2521     fi
  2522     if test x$enable_video_vulkan = xyes; then
  2523         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2524         SUMMARY_video="${SUMMARY_video} vulkan"
  2525     fi
  2526 }
  2527 
  2528 dnl See if we can use the new unified event interface in Linux 2.4
  2529 CheckInputEvents()
  2530 {
  2531     dnl Check for Linux 2.4 unified input event interface support
  2532         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2533         use_input_events=no
  2534         AC_TRY_COMPILE([
  2535           #include <linux/input.h>
  2536         ],[
  2537           #ifndef EVIOCGNAME
  2538           #error EVIOCGNAME() ioctl not available
  2539           #endif
  2540         ],[
  2541         use_input_events=yes
  2542         ])
  2543         AC_MSG_RESULT($use_input_events)
  2544         if test x$use_input_events = xyes; then
  2545             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2546             SUMMARY_input="${SUMMARY_input} linuxev"
  2547         fi
  2548 }
  2549 
  2550 dnl See if we can use the kernel kd.h header
  2551 CheckInputKD()
  2552 {
  2553 
  2554     AC_MSG_CHECKING(for Linux kd.h)
  2555     use_input_kd=no
  2556     AC_TRY_COMPILE([
  2557       #include <linux/kd.h>
  2558       #include <linux/keyboard.h>
  2559     ],[
  2560         struct kbentry kbe;
  2561         kbe.kb_table = KG_CTRL;
  2562         ioctl(0, KDGKBENT, &kbe);
  2563     ],[
  2564     use_input_kd=yes
  2565     ])
  2566     AC_MSG_RESULT($use_input_kd)
  2567     if test x$use_input_kd = xyes; then
  2568         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2569         SUMMARY_input="${SUMMARY_input} linuxkd"
  2570     fi
  2571 }
  2572 
  2573 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2574 CheckLibUDev()
  2575 {
  2576     AC_ARG_ENABLE(libudev,
  2577 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2578                         , enable_libudev=yes)
  2579     if test x$enable_libudev = xyes; then
  2580         AC_CHECK_HEADER(libudev.h,
  2581                         have_libudev_h_hdr=yes,
  2582                         have_libudev_h_hdr=no)
  2583         if test x$have_libudev_h_hdr = xyes; then
  2584             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2585 
  2586             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2587             if test x$udev_lib != x; then
  2588                 echo "-- dynamic udev -> $udev_lib"
  2589                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2590             fi
  2591         fi
  2592     fi
  2593 }
  2594 
  2595 dnl See if the platform offers libdbus for various IPC techniques.
  2596 CheckDBus()
  2597 {
  2598     AC_ARG_ENABLE(dbus,
  2599 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2600                         , enable_dbus=yes)
  2601     if test x$enable_dbus = xyes; then
  2602         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2603         if test x$PKG_CONFIG != xno; then
  2604             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2605             save_CFLAGS="$CFLAGS"
  2606             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2607             AC_CHECK_HEADER(dbus/dbus.h,
  2608                             have_dbus_dbus_h_hdr=yes,
  2609                             have_dbus_dbus_h_hdr=no)
  2610             CFLAGS="$save_CFLAGS"
  2611             if test x$have_dbus_dbus_h_hdr = xyes; then
  2612                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2613                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2614                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2615             fi
  2616         fi
  2617     fi
  2618 }
  2619 
  2620 dnl See if the platform wanna IME support.
  2621 CheckIME()
  2622 {
  2623     AC_ARG_ENABLE(ime,
  2624 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2625                   , enable_ime=yes)
  2626     if test x$enable_ime = xyes; then
  2627         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2628             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2629     fi
  2630 }
  2631 
  2632 dnl See if the platform has libibus IME support.
  2633 CheckIBus()
  2634 {
  2635     AC_ARG_ENABLE(ibus,
  2636 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2637                   , enable_ibus=yes)
  2638     if test x$enable_ibus = xyes; then
  2639         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2640         if test x$PKG_CONFIG != xno; then
  2641             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2642             save_CFLAGS="$CFLAGS"
  2643             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2644             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2645                             have_ibus_ibus_h_hdr=yes,
  2646                             have_ibus_ibus_h_hdr=no)
  2647             AC_CHECK_HEADER(sys/inotify.h,
  2648                             have_inotify_inotify_h_hdr=yes,
  2649                             have_inotify_inotify_h_hdr=no)
  2650             CFLAGS="$save_CFLAGS"
  2651             if test x$have_ibus_ibus_h_hdr = xyes; then
  2652                 if test x$enable_ime != xyes; then
  2653                     AC_MSG_WARN([IME support is required for IBus.])
  2654                     have_ibus_ibus_h_hdr=no
  2655                 elif test x$enable_dbus != xyes; then
  2656                     AC_MSG_WARN([DBus support is required for IBus.])
  2657                     have_ibus_ibus_h_hdr=no
  2658                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2659                     AC_MSG_WARN([INotify support is required for IBus.])
  2660                     have_ibus_ibus_h_hdr=no
  2661                 else
  2662                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2663                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2664                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2665                fi
  2666             fi
  2667         fi
  2668     fi
  2669 }
  2670 
  2671 dnl See if the platform has fcitx IME support.
  2672 CheckFcitx()
  2673 {
  2674     AC_ARG_ENABLE(fcitx,
  2675 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2676                   , enable_fcitx=yes)
  2677     if test x$enable_fcitx = xyes; then
  2678         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2679         if test x$PKG_CONFIG != xno; then
  2680             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2681             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2682             AC_CHECK_HEADER(fcitx/frontend.h,
  2683                             have_fcitx_frontend_h_hdr=yes,
  2684                             have_fcitx_frontend_h_hdr=no)
  2685             CFLAGS="$save_CFLAGS"
  2686             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2687                 if test x$enable_ime != xyes; then
  2688                     AC_MSG_WARN([IME support is required for fcitx.])
  2689                     have_fcitx_frontend_h_hdr=no
  2690                 elif test x$enable_dbus != xyes; then
  2691                     AC_MSG_WARN([DBus support is required for fcitx.])
  2692                     have_fcitx_frontend_h_hdr=no
  2693                 else
  2694                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2695                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2696                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2697                fi
  2698             fi
  2699         fi
  2700     fi
  2701 }
  2702 
  2703 dnl See if we can use the Touchscreen input library
  2704 CheckTslib()
  2705 {
  2706     AC_ARG_ENABLE(input-tslib,
  2707 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2708                   , enable_input_tslib=yes)
  2709     if test x$enable_input_tslib = xyes; then
  2710         AC_MSG_CHECKING(for Touchscreen library support)
  2711         enable_input_tslib=no
  2712         AC_TRY_COMPILE([
  2713           #include "tslib.h"
  2714         ],[
  2715         ],[
  2716         enable_input_tslib=yes
  2717         ])
  2718         AC_MSG_RESULT($enable_input_tslib)
  2719         if test x$enable_input_tslib = xyes; then
  2720             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2721             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2722             SUMMARY_input="${SUMMARY_input} ts"
  2723         fi
  2724     fi
  2725 }
  2726 
  2727 dnl See what type of thread model to use on Linux and Solaris
  2728 CheckPTHREAD()
  2729 {
  2730     dnl Check for pthread support
  2731     AC_ARG_ENABLE(pthreads,
  2732 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2733                   , enable_pthreads=yes)
  2734     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2735     AC_ARG_ENABLE(pthread-sem,
  2736 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2737                   , enable_pthread_sem=yes)
  2738     case "$host" in
  2739          *-*-android*)
  2740             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2741             pthread_lib=""
  2742             ;;
  2743         *-*-linux*|*-*-uclinux*)
  2744             pthread_cflags="-D_REENTRANT"
  2745             pthread_lib="-lpthread"
  2746             ;;
  2747         *-*-bsdi*)
  2748             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2749             pthread_lib=""
  2750             ;;
  2751         *-*-darwin*)
  2752             pthread_cflags="-D_THREAD_SAFE"
  2753 # causes Carbon.p complaints?
  2754 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2755             ;;
  2756         *-*-freebsd*|*-*-dragonfly*)
  2757             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2758             pthread_lib="-pthread"
  2759             ;;
  2760         *-*-netbsd*)
  2761             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2762             pthread_lib="-lpthread"
  2763             ;;
  2764         *-*-openbsd*)
  2765             pthread_cflags="-D_REENTRANT"
  2766             pthread_lib="-pthread"
  2767             ;;
  2768         *-*-solaris2.9)
  2769             # From Solaris 9+, posix4's preferred name is rt.
  2770             pthread_cflags="-D_REENTRANT"
  2771             pthread_lib="-lpthread -lrt"
  2772             ;;
  2773         *-*-solaris2.10)
  2774             # Solaris 10+ merged pthread into libc.
  2775             pthread_cflags="-D_REENTRANT"
  2776             pthread_lib="-lrt"
  2777             ;;
  2778         *-*-solaris*)
  2779             # Solaris 11+ merged rt into libc.
  2780             pthread_cflags="-D_REENTRANT"
  2781             pthread_lib=""
  2782             ;;
  2783         *-*-sysv5*)
  2784             pthread_cflags="-D_REENTRANT -Kthread"
  2785             pthread_lib=""
  2786             ;;
  2787         *-*-aix*)
  2788             pthread_cflags="-D_REENTRANT -mthreads"
  2789             pthread_lib="-lpthread"
  2790             ;;
  2791         *-*-hpux11*)
  2792             pthread_cflags="-D_REENTRANT"
  2793             pthread_lib="-L/usr/lib -lpthread"
  2794             ;;
  2795         *-*-haiku*)
  2796             pthread_cflags="-D_REENTRANT"
  2797             pthread_lib=""
  2798             ;;
  2799         *-*-nto*)
  2800             pthread_cflags="-D_REENTRANT"
  2801             pthread_lib=""
  2802             ;;
  2803         *)
  2804             pthread_cflags="-D_REENTRANT"
  2805             pthread_lib="-lpthread"
  2806             ;;
  2807     esac
  2808     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2809         # Save the original compiler flags and libraries
  2810         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2811         # Add the pthread compiler flags and libraries
  2812         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2813         # Check to see if we have pthread support on this system
  2814         AC_MSG_CHECKING(for pthreads)
  2815         use_pthreads=no
  2816         AC_TRY_LINK([
  2817          #include <pthread.h>
  2818         ],[
  2819          pthread_attr_t type;
  2820          pthread_attr_init(&type);
  2821         ],[
  2822         use_pthreads=yes
  2823         ])
  2824         AC_MSG_RESULT($use_pthreads)
  2825         # Restore the compiler flags and libraries
  2826         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2827 
  2828         # Do futher testing if we have pthread support...
  2829         if test x$use_pthreads = xyes; then
  2830             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2831             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2832             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2833             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2834 
  2835             # Save the original compiler flags and libraries
  2836             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2837             # Add the pthread compiler flags and libraries
  2838             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2839 
  2840             # Check to see if recursive mutexes are available
  2841             AC_MSG_CHECKING(for recursive mutexes)
  2842             has_recursive_mutexes=no
  2843             if test x$has_recursive_mutexes = xno; then
  2844                 AC_TRY_LINK([
  2845                   #define _GNU_SOURCE 1
  2846                   #include <pthread.h>
  2847                 ],[
  2848                   pthread_mutexattr_t attr;
  2849                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2850                 ],[
  2851                 has_recursive_mutexes=yes
  2852                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2853                 ])
  2854             fi
  2855             if test x$has_recursive_mutexes = xno; then
  2856                 AC_TRY_LINK([
  2857                   #define _GNU_SOURCE 1
  2858                   #include <pthread.h>
  2859                 ],[
  2860                   pthread_mutexattr_t attr;
  2861                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2862                 ],[
  2863                 has_recursive_mutexes=yes
  2864                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2865                 ])
  2866             fi
  2867             AC_MSG_RESULT($has_recursive_mutexes)
  2868 
  2869             # Check to see if pthread semaphore support is missing
  2870             if test x$enable_pthread_sem = xyes; then
  2871                 AC_MSG_CHECKING(for pthread semaphores)
  2872                 have_pthread_sem=no
  2873                 AC_TRY_COMPILE([
  2874                   #include <pthread.h>
  2875                   #include <semaphore.h>
  2876                 ],[
  2877                 ],[
  2878                 have_pthread_sem=yes
  2879                 ])
  2880                 AC_MSG_RESULT($have_pthread_sem)
  2881             fi
  2882             if test x$have_pthread_sem = xyes; then
  2883                 AC_MSG_CHECKING(for sem_timedwait)
  2884                 have_sem_timedwait=no
  2885                 AC_TRY_LINK([
  2886                   #include <pthread.h>
  2887                   #include <semaphore.h>
  2888                 ],[
  2889                   sem_timedwait(NULL, NULL);
  2890                 ],[
  2891                 have_sem_timedwait=yes
  2892                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2893                 ])
  2894                 AC_MSG_RESULT($have_sem_timedwait)
  2895             fi
  2896 
  2897             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2898             if test x$have_pthread_np_h = xyes; then
  2899                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2900             fi
  2901 
  2902             # Check to see if pthread naming is available
  2903             AC_MSG_CHECKING(for pthread_setname_np)
  2904             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2905               has_pthread_setname_np=yes
  2906               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2907             ],[
  2908               has_pthread_setname_np=no
  2909             ])
  2910             AC_MSG_RESULT($has_pthread_setname_np)
  2911 
  2912             AC_MSG_CHECKING(for pthread_set_name_np)
  2913             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2914               has_pthread_set_name_np=yes
  2915               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2916             ],[
  2917               has_pthread_set_name_np=no
  2918             ])
  2919             AC_MSG_RESULT($has_pthread_set_name_np)
  2920 
  2921             # Restore the compiler flags and libraries
  2922             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2923 
  2924             # Basic thread creation functions
  2925             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2926 
  2927             # Semaphores
  2928             # We can fake these with mutexes and condition variables if necessary
  2929             if test x$have_pthread_sem = xyes; then
  2930                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2931             else
  2932                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2933             fi
  2934 
  2935             # Mutexes
  2936             # We can fake these with semaphores if necessary
  2937             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2938 
  2939             # Condition variables
  2940             # We can fake these with semaphores and mutexes if necessary
  2941             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2942 
  2943             # Thread local storage
  2944             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2945 
  2946             have_threads=yes
  2947         fi
  2948     fi
  2949 }
  2950 
  2951 dnl Determine whether the compiler can produce Windows executables
  2952 CheckWINDOWS()
  2953 {
  2954     AC_MSG_CHECKING(Windows compiler)
  2955     have_win32_gcc=no
  2956     AC_TRY_COMPILE([
  2957      #include <windows.h>
  2958     ],[
  2959     ],[
  2960     have_win32_gcc=yes
  2961     ])
  2962     AC_MSG_RESULT($have_win32_gcc)
  2963     if test x$have_win32_gcc != xyes; then
  2964        AC_MSG_ERROR([
  2965 *** Your compiler ($CC) does not produce Windows executables!
  2966        ])
  2967     fi
  2968 
  2969     AC_MSG_CHECKING(Windows CE)
  2970     have_wince=no
  2971     AC_TRY_COMPILE([
  2972 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2973 #error This is not Windows CE
  2974 #endif
  2975     ],[
  2976     ],[
  2977     have_wince=yes
  2978        AC_MSG_ERROR([
  2979 *** Sorry, Windows CE is no longer supported.
  2980        ])
  2981     ])
  2982     AC_MSG_RESULT($have_wince)
  2983 
  2984     # This fixes Windows stack alignment with newer GCC
  2985     CheckStackBoundary
  2986 }
  2987 
  2988 dnl Find the DirectX includes and libraries
  2989 CheckDIRECTX()
  2990 {
  2991     AC_ARG_ENABLE(directx,
  2992 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  2993                   , enable_directx=yes)
  2994     if test x$enable_directx = xyes; then
  2995         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  2996         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  2997         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  2998         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  2999         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  3000         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  3001         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  3002         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  3003         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  3004         AC_TRY_COMPILE([
  3005 #include <windows.h>
  3006 #include <xinput.h>
  3007 XINPUT_GAMEPAD_EX x1;
  3008         ],[],[have_xinput_gamepadex=yes])
  3009         AC_TRY_COMPILE([
  3010 #include <windows.h>
  3011 #include <xinput.h>
  3012 XINPUT_STATE_EX s1;
  3013         ],[],[have_xinput_stateex=yes])
  3014 
  3015         if test x$have_ddraw = xyes; then
  3016             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  3017         fi
  3018         if test x$have_dinput = xyes; then
  3019             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3020         fi
  3021         if test x$have_dsound = xyes; then
  3022             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3023         fi
  3024         if test x$have_dxgi = xyes; then
  3025             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3026         fi
  3027         if test x$have_xinput = xyes; then
  3028             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3029         fi
  3030         if test x$have_xinput_gamepadex = xyes; then
  3031             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3032         fi
  3033         if test x$have_xinput_stateex = xyes; then
  3034             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3035         fi
  3036 
  3037         SUMMARY_video="${SUMMARY_video} directx"
  3038         SUMMARY_audio="${SUMMARY_audio} directx"
  3039 
  3040         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3041         # FIXME:  ...so force it off for now.
  3042         case "$host" in
  3043             *-*-cygwin*)
  3044             have_dinput=false
  3045             ;;
  3046         esac
  3047     fi
  3048 }
  3049 
  3050 dnl Check for the dlfcn.h interface for dynamically loading objects
  3051 CheckDLOPEN()
  3052 {
  3053     AC_ARG_ENABLE(sdl-dlopen,
  3054 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3055                   , enable_sdl_dlopen=yes)
  3056     if test x$enable_sdl_dlopen = xyes; then
  3057         AC_MSG_CHECKING(for dlopen)
  3058         have_dlopen=no
  3059         AC_TRY_COMPILE([
  3060          #include <dlfcn.h>
  3061         ],[
  3062          void *handle = dlopen("", RTLD_NOW);
  3063          const char *loaderror = (char *) dlerror();
  3064         ],[
  3065         have_dlopen=yes
  3066         ])
  3067         AC_MSG_RESULT($have_dlopen)
  3068 
  3069         if test x$have_dlopen = xyes; then
  3070             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3071                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3072                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3073             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3074             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3075             have_loadso=yes
  3076         fi
  3077     fi
  3078 }
  3079 
  3080 dnl Check for the usbhid(3) library on *BSD
  3081 CheckUSBHID()
  3082 {
  3083     case "$host" in
  3084         *-*-*bsd*)
  3085             if test x$enable_joystick = xyes; then
  3086                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3087                 if test x$have_libusbhid = xyes; then
  3088                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3089                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3090                     USB_LIBS="$USB_LIBS -lusbhid"
  3091                 else
  3092                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3093                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3094                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3095                 fi
  3096                     
  3097                 save_CFLAGS="$CFLAGS"
  3098                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3099 
  3100                 AC_MSG_CHECKING(for usbhid)
  3101                 have_usbhid=no
  3102                 AC_TRY_COMPILE([
  3103                   #include <sys/types.h>
  3104                   #if defined(HAVE_USB_H)
  3105                   #include <usb.h>
  3106                   #endif
  3107                   #ifdef __DragonFly__
  3108                   # include <bus/usb/usb.h>
  3109                   # include <bus/usb/usbhid.h>
  3110                   #else
  3111                   # include <dev/usb/usb.h>
  3112                   # include <dev/usb/usbhid.h>
  3113                   #endif
  3114                   #if defined(HAVE_USBHID_H)
  3115                   #include <usbhid.h>
  3116                   #elif defined(HAVE_LIBUSB_H)
  3117                   #include <libusb.h>
  3118                   #elif defined(HAVE_LIBUSBHID_H)
  3119                   #include <libusbhid.h>
  3120                   #endif
  3121                 ],[
  3122                   struct report_desc *repdesc;
  3123                   struct usb_ctl_report *repbuf;
  3124                   hid_kind_t hidkind;
  3125                 ],[
  3126                 have_usbhid=yes
  3127                 ])
  3128                 AC_MSG_RESULT($have_usbhid)
  3129 
  3130                 if test x$have_usbhid = xyes; then
  3131                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3132                     have_usbhid_ucr_data=no
  3133                     AC_TRY_COMPILE([
  3134                       #include <sys/types.h>
  3135                       #if defined(HAVE_USB_H)
  3136                       #include <usb.h>
  3137                       #endif
  3138                       #ifdef __DragonFly__
  3139                       # include <bus/usb/usb.h>
  3140                       # include <bus/usb/usbhid.h>
  3141                       #else
  3142                       # include <dev/usb/usb.h>
  3143                       # include <dev/usb/usbhid.h>
  3144                       #endif
  3145                       #if defined(HAVE_USBHID_H)
  3146                       #include <usbhid.h>
  3147                       #elif defined(HAVE_LIBUSB_H)
  3148                       #include <libusb.h>
  3149                       #elif defined(HAVE_LIBUSBHID_H)
  3150                       #include <libusbhid.h>
  3151                       #endif
  3152                     ],[
  3153                       struct usb_ctl_report buf;
  3154                       if (buf.ucr_data) { }
  3155                     ],[
  3156                     have_usbhid_ucr_data=yes
  3157                     ])
  3158                     if test x$have_usbhid_ucr_data = xyes; then
  3159                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3160                     fi
  3161                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3162                     
  3163                     AC_MSG_CHECKING(for new usbhid API)
  3164                     have_usbhid_new=no
  3165                     AC_TRY_COMPILE([
  3166                       #include <sys/types.h>
  3167                       #if defined(HAVE_USB_H)
  3168                       #include <usb.h>
  3169                       #endif
  3170                       #ifdef __DragonFly__
  3171                       #include <bus/usb/usb.h>
  3172                       #include <bus/usb/usbhid.h>
  3173                       #else
  3174                       #include <dev/usb/usb.h>
  3175                       #include <dev/usb/usbhid.h>
  3176                       #endif
  3177                       #if defined(HAVE_USBHID_H)
  3178                       #include <usbhid.h>
  3179                       #elif defined(HAVE_LIBUSB_H)
  3180                       #include <libusb.h>
  3181                       #elif defined(HAVE_LIBUSBHID_H)
  3182                       #include <libusbhid.h>
  3183                       #endif
  3184                     ],[
  3185                       report_desc_t d;
  3186                       hid_start_parse(d, 1, 1);
  3187                     ],[
  3188                     have_usbhid_new=yes
  3189                     ])
  3190                     if test x$have_usbhid_new = xyes; then
  3191                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3192                     fi
  3193                     AC_MSG_RESULT($have_usbhid_new)
  3194 
  3195                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3196                     have_machine_joystick=no
  3197                     AC_TRY_COMPILE([
  3198                       #include <machine/joystick.h>
  3199                     ],[
  3200                       struct joystick t;
  3201                     ],[
  3202                     have_machine_joystick=yes
  3203                     ])
  3204                     if test x$have_machine_joystick = xyes; then
  3205                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3206                     fi
  3207                     AC_MSG_RESULT($have_machine_joystick)
  3208 
  3209                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3210                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3211                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3212                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3213                     have_joystick=yes
  3214                 fi
  3215                 CFLAGS="$save_CFLAGS"
  3216             fi
  3217         ;;
  3218     esac
  3219 }
  3220 
  3221 dnl Check for clock_gettime()
  3222 CheckClockGettime()
  3223 {
  3224     AC_ARG_ENABLE(clock_gettime,
  3225 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3226                   , enable_clock_gettime=yes)
  3227     if test x$enable_clock_gettime = xyes; then
  3228         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3229         if test x$have_clock_gettime = xyes; then
  3230             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3231             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3232         else
  3233             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3234             if test x$have_clock_gettime = xyes; then
  3235                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3236                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3237             fi
  3238         fi
  3239     fi
  3240 }
  3241 
  3242 dnl Check for a valid linux/version.h
  3243 CheckLinuxVersion()
  3244 {
  3245     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3246     if test x$have_linux_version_h = xyes; then
  3247         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3248     fi
  3249 }
  3250 
  3251 dnl Check if we want to use RPATH
  3252 CheckRPATH()
  3253 {
  3254     AC_ARG_ENABLE(rpath,
  3255 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3256                   , enable_rpath=yes)
  3257 }
  3258 
  3259 dnl Do this on all platforms, before everything else (other things might want to override it).
  3260 CheckWarnAll
  3261 
  3262 dnl Set up the configuration based on the host platform!
  3263 case "$host" in
  3264     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3265         case "$host" in
  3266             *-*-android*)
  3267                 # Android
  3268                 ARCH=android
  3269                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3270                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3271                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3272                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3273                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3274                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3275 
  3276                 if test x$enable_video = xyes; then
  3277                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3278                     # FIXME: confdefs? Not AC_DEFINE?
  3279                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3280                     SUMMARY_video="${SUMMARY_video} android"
  3281                 fi
  3282                 ;;
  3283             *-*-linux*)         ARCH=linux ;;
  3284             *-*-uclinux*)       ARCH=linux ;;
  3285             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3286             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3287             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3288             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3289             *-*-bsdi*)          ARCH=bsdi ;;
  3290             *-*-freebsd*)       ARCH=freebsd ;;
  3291             *-*-dragonfly*)     ARCH=freebsd ;;
  3292             *-*-netbsd*)        ARCH=netbsd ;;
  3293             *-*-openbsd*)       ARCH=openbsd ;;
  3294             *-*-sysv5*)         ARCH=sysv5 ;;
  3295             *-*-solaris*)       ARCH=solaris ;;
  3296             *-*-hpux*)          ARCH=hpux ;;
  3297             *-*-aix*)           ARCH=aix ;;
  3298             *-*-minix*)         ARCH=minix ;;
  3299             *-*-nto*)           ARCH=nto
  3300                 CheckQNXVideo
  3301                 ;;
  3302         esac
  3303         CheckVisibilityHidden
  3304         CheckDeclarationAfterStatement
  3305         CheckDummyVideo
  3306         CheckDiskAudio
  3307         CheckDummyAudio
  3308         CheckDLOPEN
  3309         CheckOSS
  3310         CheckALSA
  3311         CheckPulseAudio
  3312         CheckJACK
  3313         CheckARTSC
  3314         CheckESD
  3315         CheckNAS
  3316         CheckSNDIO
  3317         CheckFusionSound
  3318         CheckLibSampleRate
  3319         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3320         CheckRPI
  3321         CheckX11
  3322         CheckDirectFB
  3323         CheckKMSDRM
  3324         CheckOpenGLX11
  3325         CheckOpenGLESX11
  3326         CheckVulkan
  3327         CheckMir
  3328         CheckWayland
  3329         CheckLibUDev
  3330         CheckDBus
  3331         CheckIME
  3332         CheckIBus
  3333         CheckFcitx
  3334         case $ARCH in
  3335           linux)
  3336               CheckInputEvents
  3337               CheckInputKD
  3338           ;;
  3339         esac
  3340         CheckTslib
  3341         CheckUSBHID
  3342         CheckPTHREAD
  3343         CheckClockGettime
  3344         CheckLinuxVersion
  3345         CheckRPATH
  3346         CheckVivanteVideo
  3347 
  3348         # Set up files for the audio library
  3349         if test x$enable_audio = xyes; then
  3350           case $ARCH in
  3351             sysv5|solaris|hpux)
  3352                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3353                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3354                 SUMMARY_audio="${SUMMARY_audio} sun"
  3355                 have_audio=yes
  3356             ;;
  3357             netbsd)  # Don't use this on OpenBSD, it's busted.
  3358                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3359                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3360                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3361                 have_audio=yes
  3362             ;;
  3363             aix)
  3364                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3365                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3366                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3367                 have_audio=yes
  3368             ;;
  3369             android)
  3370                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3371                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3372                 SUMMARY_audio="${SUMMARY_audio} android"
  3373                 have_audio=yes
  3374             ;;
  3375             nto)
  3376                 CheckQNXAudio
  3377             ;;
  3378           esac
  3379         fi
  3380         # Set up files for the joystick library
  3381         if test x$enable_joystick = xyes; then
  3382           case $ARCH in
  3383             linux)
  3384                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3385                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3386                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3387                 have_joystick=yes
  3388             ;;
  3389             android)
  3390                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3391                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3392                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3393                 have_joystick=yes
  3394             ;;
  3395           esac
  3396         fi
  3397         # Set up files for the haptic library
  3398         if test x$enable_haptic = xyes; then
  3399           case $ARCH in
  3400             linux)
  3401                 if test x$use_input_events = xyes; then
  3402                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3403                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3404                     have_haptic=yes
  3405                 fi
  3406             ;;
  3407             android)
  3408                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3409                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3410                 have_haptic=yes
  3411             ;;
  3412           esac
  3413         fi
  3414         # Set up files for the power library
  3415         if test x$enable_power = xyes; then
  3416              case $ARCH in
  3417                linux)
  3418                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3419                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3420                    have_power=yes
  3421                ;;
  3422                android)
  3423                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3424                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3425                    have_power=yes
  3426                ;;
  3427              esac
  3428         fi
  3429         # Set up files for the filesystem library
  3430         if test x$enable_filesystem = xyes; then
  3431              case $ARCH in
  3432                android)
  3433                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3434                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3435                    have_filesystem=yes
  3436                ;;
  3437                *)
  3438                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3439                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3440                    have_filesystem=yes
  3441                ;;
  3442              esac
  3443         fi
  3444         # Set up files for the timer library
  3445         if test x$enable_timers = xyes; then
  3446             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3447             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3448             have_timers=yes
  3449         fi
  3450         # Set up files for udev hotplugging support
  3451         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3452             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3453         fi
  3454         # Set up files for evdev input
  3455         if test x$use_input_events = xyes; then
  3456             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3457         fi       
  3458         # Set up other core UNIX files
  3459         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3460         ;;
  3461     *-*-cygwin* | *-*-mingw32*)
  3462         ARCH=win32
  3463         if test "$build" != "$host"; then # cross-compiling
  3464             # Default cross-compile location
  3465             ac_default_prefix=/usr/local/cross-tools/$host
  3466         else
  3467             # Look for the location of the tools and install there
  3468             if test "$BUILD_PREFIX" != ""; then
  3469                 ac_default_prefix=$BUILD_PREFIX
  3470             fi
  3471         fi
  3472         CheckDeclarationAfterStatement
  3473         CheckDummyVideo
  3474         CheckDiskAudio
  3475         CheckDummyAudio
  3476         CheckWINDOWS
  3477         CheckWINDOWSGL
  3478         CheckWINDOWSGLES
  3479         CheckVulkan
  3480         CheckDIRECTX
  3481 
  3482         # Set up the core platform files
  3483         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3484 
  3485         # Set up files for the video library
  3486         if test x$enable_video = xyes; then
  3487             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3488             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3489             have_video=yes
  3490             AC_ARG_ENABLE(render-d3d,
  3491 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3492                                 , enable_render_d3d=yes)
  3493             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3494                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3495             fi
  3496             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3497                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3498             fi
  3499         fi
  3500         # Set up files for the audio library
  3501         if test x$enable_audio = xyes; then
  3502             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3503             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3504             if test x$have_dsound = xyes; then
  3505                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3506                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3507             fi
  3508             if test x$have_wasapi = xyes; then
  3509                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3510                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3511             fi
  3512             have_audio=yes
  3513         fi
  3514         # Set up files for the joystick library
  3515         if test x$enable_joystick = xyes; then
  3516             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3517                 if test x$have_xinput = xyes; then
  3518                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3519                 fi
  3520                 if test x$have_dinput = xyes; then
  3521                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3522                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3523                 fi
  3524             else
  3525                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3526             fi
  3527             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3528             have_joystick=yes
  3529         fi
  3530         if test x$enable_haptic = xyes; then
  3531             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3532                 if test x$have_xinput = xyes; then
  3533                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3534                 fi
  3535                 if test x$have_dinput = xyes; then
  3536                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3537                 fi
  3538                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3539                 have_haptic=yes
  3540             fi
  3541         fi
  3542         if test x$enable_power = xyes; then
  3543             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3544             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3545             have_power=yes
  3546         fi
  3547         if test x$enable_filesystem = xyes; then
  3548             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3549             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3550             have_filesystem=yes
  3551         fi
  3552         # Set up files for the thread library
  3553         if test x$enable_threads = xyes; then
  3554             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3555             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3556             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3557             have_threads=yes
  3558         fi
  3559         # Set up files for the timer library
  3560         if test x$enable_timers = xyes; then
  3561             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3562             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3563             have_timers=yes
  3564         fi
  3565         # Set up files for the shared object loading library
  3566         if test x$enable_loadso = xyes; then
  3567             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3568             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3569             have_loadso=yes
  3570         fi
  3571         # Set up the system libraries we need
  3572         if test -f /lib/w32api/libuuid.a; then
  3573             LIBUUID=/lib/w32api/libuuid.a
  3574         else
  3575             LIBUUID=-luuid
  3576         fi
  3577         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3578         # The Windows platform requires special setup
  3579         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3580         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3581         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3582         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3583 
  3584         # Check to see if this is a mingw or cygwin build
  3585         have_mingw32=
  3586         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3587         if test x$have_mingw32 = xyes; then
  3588             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3589         else
  3590             SDL_LIBS="-lcygwin $SDL_LIBS"
  3591         fi
  3592         ;;
  3593 
  3594     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3595     *-*-beos*)
  3596         AC_MSG_ERROR([
  3597 *** BeOS support has been removed as of SDL 2.0.2.
  3598         ])
  3599         ;;
  3600 
  3601     *-*-haiku*)
  3602         ARCH=haiku
  3603         ac_default_prefix=/boot/system
  3604         CheckDummyVideo
  3605         CheckDiskAudio
  3606         CheckDummyAudio
  3607         CheckDLOPEN
  3608         CheckHaikuVideo
  3609         CheckHaikuGL
  3610         CheckPTHREAD
  3611 
  3612         # Set up files for the audio library
  3613         if test x$enable_audio = xyes; then
  3614             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3615             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3616             SUMMARY_audio="${SUMMARY_audio} haiku"
  3617             have_audio=yes
  3618         fi
  3619         # Set up files for the joystick library
  3620         if test x$enable_joystick = xyes; then
  3621             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3622             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3623             have_joystick=yes
  3624         fi
  3625         # Set up files for the timer library
  3626         if test x$enable_timers = xyes; then
  3627             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3628             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3629             have_timers=yes
  3630         fi
  3631         # Set up files for the system power library
  3632         if test x$enable_power = xyes; then
  3633             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3634             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3635             have_power=yes
  3636         fi
  3637         # Set up files for the system filesystem library
  3638         if test x$enable_filesystem = xyes; then
  3639             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3640             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3641             have_filesystem=yes
  3642         fi
  3643         # The Haiku platform requires special setup.
  3644         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3645         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3646         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3647         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3648         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3649         ;;
  3650     arm*-apple-darwin*|*-ios-*)
  3651         ARCH=ios
  3652 
  3653         CheckVisibilityHidden
  3654         CheckDeclarationAfterStatement
  3655         CheckDummyVideo
  3656         CheckDiskAudio
  3657         CheckDummyAudio
  3658         CheckDLOPEN
  3659         CheckMETAL
  3660         CheckVulkan
  3661         CheckPTHREAD
  3662 
  3663         # Set up files for the audio library
  3664         if test x$enable_audio = xyes; then
  3665             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3666             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3667             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3668             have_audio=yes
  3669         fi
  3670         # Set up files for the joystick library
  3671         if test x$enable_joystick = xyes; then
  3672             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3673             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3674             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3675             have_joystick=yes
  3676         fi
  3677         # Set up files for the haptic library
  3678         #if test x$enable_haptic = xyes; then
  3679         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3680         #    have_haptic=yes
  3681         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3682         #fi
  3683         # Set up files for the power library
  3684         if test x$enable_power = xyes; then
  3685             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3686             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3687             have_power=yes
  3688         fi
  3689         # Set up files for the filesystem library
  3690         if test x$enable_filesystem = xyes; then
  3691             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3692             have_filesystem=yes
  3693         fi
  3694         # Set up additional files for the file library
  3695         if test x$enable_file = xyes; then
  3696             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3697             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3698         fi
  3699         # Set up files for the timer library
  3700         if test x$enable_timers = xyes; then
  3701             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3702             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3703             have_timers=yes
  3704         fi
  3705         # Set up other core UNIX files
  3706         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3707         # The iOS platform requires special setup.
  3708         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3709         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3710         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3711         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3712         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3713         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3714         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3715         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3716         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3717         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3718         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3719         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3720         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3721         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3722         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3723         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3724         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3725 
  3726         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3727             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Metal"
  3728         fi
  3729         ;;
  3730     *-*-darwin* )
  3731         # This could be either full "Mac OS X", or plain "Darwin" which is
  3732         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3733         # Next line is broken, and a few files below require Mac OS X (full)
  3734         ARCH=macosx
  3735 
  3736         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3737         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3738         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3739 
  3740         CheckVisibilityHidden
  3741         CheckDeclarationAfterStatement
  3742         CheckDummyVideo
  3743         CheckDiskAudio
  3744         CheckDummyAudio
  3745         CheckDLOPEN
  3746         CheckCOCOA
  3747         CheckMETAL
  3748         CheckX11
  3749         CheckMacGL
  3750         CheckOpenGLX11
  3751         CheckVulkan
  3752         CheckPTHREAD
  3753 
  3754         # Set up files for the audio library
  3755         if test x$enable_audio = xyes; then
  3756             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3757             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3758             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3759             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3760             have_audio=yes
  3761         fi
  3762         # Set up files for the joystick library
  3763         if test x$enable_joystick = xyes; then
  3764             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3765             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3766             have_joystick=yes
  3767         fi
  3768         # Set up files for the haptic library
  3769         if test x$enable_haptic = xyes; then
  3770             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3771             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3772             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3773             have_haptic=yes
  3774         fi
  3775         # Set up files for the power library
  3776         if test x$enable_power = xyes; then
  3777             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3778             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3779             have_power=yes
  3780         fi
  3781         # Set up files for the filesystem library
  3782         if test x$enable_filesystem = xyes; then
  3783             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3784             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3785             have_filesystem=yes
  3786         fi
  3787         # Set up files for the timer library
  3788         if test x$enable_timers = xyes; then
  3789             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3790             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3791             have_timers=yes
  3792         fi
  3793         # Set up additional files for the file library
  3794         if test x$enable_file = xyes; then
  3795             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3796         fi
  3797         # Set up other core UNIX files
  3798         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3799         # The Mac OS X platform requires special setup.
  3800         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3801         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3802         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3803         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3804         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3805 
  3806         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3807             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
  3808         fi
  3809         ;;
  3810     *-nacl|*-pnacl)
  3811         ARCH=nacl
  3812         CheckNativeClient
  3813         CheckDummyAudio
  3814         CheckDummyVideo
  3815         CheckInputEvents
  3816         CheckPTHREAD
  3817         
  3818         # Set up files for the timer library
  3819         if test x$enable_timers = xyes; then
  3820             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3821             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3822             have_timers=yes
  3823         fi
  3824         
  3825         if test x$enable_filesystem = xyes; then
  3826             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3827             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3828             have_filesystem=yes
  3829         fi
  3830         ;;
  3831     *-*-emscripten* )
  3832         if test x$enable_video = xyes; then
  3833             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3834             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3835             have_video=yes
  3836             SUMMARY_video="${SUMMARY_video} emscripten"
  3837         fi
  3838 
  3839         if test x$enable_audio = xyes; then
  3840             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3841             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3842             have_audio=yes
  3843             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3844         fi
  3845 
  3846         CheckVisibilityHidden
  3847         CheckDeclarationAfterStatement
  3848         CheckDummyVideo
  3849         CheckDiskAudio
  3850         CheckDummyAudio
  3851         CheckDLOPEN
  3852         CheckClockGettime
  3853         CheckEmscriptenGLES
  3854 
  3855          # Set up files for the power library
  3856         if test x$enable_power = xyes; then
  3857             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3858             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3859             have_power=yes
  3860         fi
  3861         
  3862         # Set up files for the power library
  3863         if test x$enable_joystick = xyes; then
  3864             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3865             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3866             have_joystick=yes
  3867         fi
  3868 
  3869         # Set up files for the filesystem library
  3870         if test x$enable_filesystem = xyes; then
  3871             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3872             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3873             have_filesystem=yes
  3874         fi
  3875         # Set up files for the timer library
  3876         if test x$enable_timers = xyes; then
  3877             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3878             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3879             have_timers=yes
  3880         fi
  3881         ;;
  3882     *)
  3883         AC_MSG_ERROR([
  3884 *** Unsupported host:  Please add to configure.in
  3885         ])
  3886         ;;
  3887 esac
  3888 
  3889 # Verify that we have all the platform specific files we need
  3890 
  3891 if test x$have_joystick != xyes; then
  3892     if test x$enable_joystick = xyes; then
  3893         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3894     fi
  3895     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3896 fi
  3897 if test x$have_haptic != xyes; then
  3898     if test x$enable_haptic = xyes; then
  3899         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3900     fi
  3901     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3902 fi
  3903 if test x$have_threads != xyes; then
  3904     if test x$enable_threads = xyes; then
  3905         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3906     fi
  3907     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3908 fi
  3909 if test x$have_timers != xyes; then
  3910     if test x$enable_timers = xyes; then
  3911         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3912     fi
  3913     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3914 fi
  3915 if test x$have_filesystem != xyes; then
  3916     if test x$enable_filesystem = xyes; then
  3917         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3918     fi
  3919     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3920 fi
  3921 if test x$have_loadso != xyes; then
  3922     if test x$enable_loadso = xyes; then
  3923         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3924     fi
  3925     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3926 fi
  3927 if test x$SDLMAIN_SOURCES = x; then
  3928     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3929 fi
  3930 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3931 
  3932 if test x$video_wayland = xyes; then
  3933     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3934     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3935     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3936         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3937     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3938         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3939     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3940     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3941 
  3942     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3943 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3944 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3945 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3946 
  3947     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3948 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3949 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3950 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3951 
  3952     WAYLAND_CORE_PROTOCOL_OBJECT="
  3953 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3954 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3955 
  3956     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3957         do echo ; echo \$p | sed\
  3958         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3959 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3960 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3961 
  3962     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3963         do echo ; echo \$p | sed\
  3964         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3965 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3966 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3967 
  3968     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3969         do echo ; echo \$p | sed\
  3970         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3971 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3972 
  3973     WAYLAND_PROTOCOLS_DEPENDS="
  3974 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3975 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3976 $WAYLAND_CORE_PROTOCOL_OBJECT
  3977 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3978 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3979 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  3980 "
  3981 fi
  3982 
  3983 OBJECTS=`echo $SOURCES`
  3984 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  3985 for EXT in asm cc m c S; do
  3986     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  3987     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  3988 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  3989 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  3990 done
  3991 
  3992 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  3993 
  3994 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  3995 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  3996 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  3997 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  3998 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  3999 	\\$(WINDRES) \\$< \\$@,g"`
  4000 
  4001 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  4002 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  4003 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4004 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4005 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4006 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4007 
  4008 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  4009 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  4010 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4011 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4012 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4013 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4014 
  4015 # Set runtime shared library paths as needed
  4016 
  4017 if test "x$enable_rpath" = "xyes"; then
  4018   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  4019     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  4020 
  4021     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  4022     have_enable_new_dtags=no
  4023     save_LDFLAGS="$LDFLAGS"
  4024     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  4025     AC_TRY_LINK([
  4026     ],[
  4027     ],[
  4028     have_enable_new_dtags=yes
  4029     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4030     ])
  4031     LDFLAGS="$save_LDFLAGS"
  4032     AC_MSG_RESULT($have_enable_new_dtags)
  4033   fi
  4034   if test $ARCH = solaris; then
  4035     SDL_RLD_FLAGS="-R\${libdir}"
  4036   fi
  4037 else
  4038   SDL_RLD_FLAGS=""
  4039 fi
  4040 
  4041 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4042 
  4043 dnl Expand the cflags and libraries needed by apps using SDL
  4044 AC_SUBST(SDL_CFLAGS)
  4045 AC_SUBST(SDL_LIBS)
  4046 AC_SUBST(SDL_STATIC_LIBS)
  4047 AC_SUBST(SDL_RLD_FLAGS)
  4048 if test x$enable_shared = xyes; then
  4049     ENABLE_SHARED_TRUE=
  4050     ENABLE_SHARED_FALSE="#"
  4051 else
  4052     ENABLE_SHARED_TRUE="#"
  4053     ENABLE_SHARED_FALSE=
  4054 fi
  4055 if test x$enable_static = xyes; then
  4056     ENABLE_STATIC_TRUE=
  4057     ENABLE_STATIC_FALSE="#"
  4058 else
  4059     ENABLE_STATIC_TRUE="#"
  4060     ENABLE_STATIC_FALSE=
  4061 fi
  4062 AC_SUBST(ENABLE_SHARED_TRUE)
  4063 AC_SUBST(ENABLE_SHARED_FALSE)
  4064 AC_SUBST(ENABLE_STATIC_TRUE)
  4065 AC_SUBST(ENABLE_STATIC_FALSE)
  4066 
  4067 dnl Expand the sources and objects needed to build the library
  4068 AC_SUBST(ac_aux_dir)
  4069 AC_SUBST(INCLUDE)
  4070 AC_SUBST(OBJECTS)
  4071 AC_SUBST(GEN_HEADERS)
  4072 AC_SUBST(GEN_OBJECTS)
  4073 AC_SUBST(VERSION_OBJECTS)
  4074 AC_SUBST(SDLMAIN_OBJECTS)
  4075 AC_SUBST(SDLTEST_OBJECTS)
  4076 AC_SUBST(BUILD_CFLAGS)
  4077 AC_SUBST(EXTRA_CFLAGS)
  4078 AC_SUBST(BUILD_LDFLAGS)
  4079 AC_SUBST(EXTRA_LDFLAGS)
  4080 AC_SUBST(WINDRES)
  4081 AC_SUBST(WAYLAND_SCANNER)
  4082 
  4083 cat >Makefile.rules <<__EOF__
  4084 
  4085 # Build rules for objects
  4086 -include \$(OBJECTS:.lo=.d)
  4087 
  4088 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4089 $srcdir/src/SDL.c: update-revision
  4090 $DEPENDS
  4091 $VERSION_DEPENDS
  4092 $SDLMAIN_DEPENDS
  4093 $SDLTEST_DEPENDS
  4094 $WAYLAND_PROTOCOLS_DEPENDS
  4095 __EOF__
  4096 
  4097 AC_CONFIG_FILES([
  4098     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4099 ])
  4100 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4101 
  4102 SUMMARY="SDL2 Configure Summary:\n"
  4103 if test x$enable_shared = xyes; then
  4104     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4105 fi
  4106 if test x$enable_static = xyes; then
  4107     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4108 fi
  4109 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4110 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4111 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4112 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4113 if test x$have_x = xyes; then
  4114     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4115 fi
  4116 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4117 if test x$have_samplerate_h_hdr = xyes; then
  4118     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4119 else
  4120     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4121 fi
  4122 if test x$have_libudev_h_hdr = xyes; then
  4123     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4124 else
  4125     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4126 fi
  4127 if test x$have_dbus_dbus_h_hdr = xyes; then
  4128     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4129 else
  4130     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4131 fi
  4132 if test x$enable_ime = xyes; then
  4133     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4134 else
  4135     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4136 fi
  4137 if test x$have_ibus_ibus_h_hdr = xyes; then
  4138     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4139 else
  4140     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4141 fi
  4142 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4143     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4144 else
  4145     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4146 fi
  4147 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4148 
  4149 AC_OUTPUT