configure.in
author Alex Szpakowski <slime73@gmail.com>
Tue, 02 Jan 2018 19:06:14 -0400
changeset 11808 510c0e047122
parent 11762 c4900725a75a
child 11829 fcbafc9e443c
permissions -rw-r--r--
configure script: Implement testing for build-time Metal SDK support.
     1 dnl Process this file with autoconf to produce a configure script.
     2 AC_INIT(README.txt)
     3 AC_CONFIG_HEADER(include/SDL_config.h)
     4 AC_CONFIG_AUX_DIR(build-scripts)
     5 AC_CONFIG_MACRO_DIR([acinclude])
     6 
     7 dnl Save the CFLAGS to see whether they were passed in or generated
     8 orig_CFLAGS="$CFLAGS"
     9 
    10 dnl Set various version strings - taken gratefully from the GTk sources
    11 #
    12 # Making releases:
    13 # Edit include/SDL_version.h and change the version, then:
    14 #   SDL_MICRO_VERSION += 1;
    15 #   SDL_INTERFACE_AGE += 1;
    16 #   SDL_BINARY_AGE += 1;
    17 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    18 # if backwards compatibility has been broken,
    19 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    20 #
    21 SDL_MAJOR_VERSION=2
    22 SDL_MINOR_VERSION=0
    23 SDL_MICRO_VERSION=8
    24 SDL_INTERFACE_AGE=0
    25 SDL_BINARY_AGE=8
    26 SDL_VERSION=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION.$SDL_MICRO_VERSION
    27 
    28 AC_SUBST(SDL_MAJOR_VERSION)
    29 AC_SUBST(SDL_MINOR_VERSION)
    30 AC_SUBST(SDL_MICRO_VERSION)
    31 AC_SUBST(SDL_INTERFACE_AGE)
    32 AC_SUBST(SDL_BINARY_AGE)
    33 AC_SUBST(SDL_VERSION)
    34 
    35 # libtool versioning
    36 LT_INIT([win32-dll])
    37 
    38 LT_RELEASE=$SDL_MAJOR_VERSION.$SDL_MINOR_VERSION
    39 LT_CURRENT=`expr $SDL_MICRO_VERSION - $SDL_INTERFACE_AGE`
    40 LT_REVISION=$SDL_INTERFACE_AGE
    41 LT_AGE=`expr $SDL_BINARY_AGE - $SDL_INTERFACE_AGE`
    42 m4_pattern_allow([^LT_])
    43 
    44 AC_SUBST(LT_RELEASE)
    45 AC_SUBST(LT_CURRENT)
    46 AC_SUBST(LT_REVISION)
    47 AC_SUBST(LT_AGE)
    48 
    49 dnl Detect the canonical build and host environments
    50 dnl AC_CANONICAL_HOST
    51 
    52 dnl Check for tools
    53 AC_PROG_LIBTOOL
    54 AC_PROG_CC
    55 AC_PROG_CXX
    56 AC_PROG_INSTALL
    57 AC_PROG_MAKE_SET
    58 AC_CHECK_TOOL(WINDRES, [windres], [:])
    59 
    60 dnl Make sure that srcdir is a full pathname
    61 case "$host" in
    62     *-*-mingw32*)
    63         # Except on msys, where make can't handle full pathnames (bug 1972)
    64         ;;
    65     *)
    66         srcdir=`cd $srcdir && pwd`
    67         ;;
    68 esac
    69 
    70 dnl Set up the compiler and linker flags
    71 INCLUDE="-I$srcdir/include -idirafter $srcdir/src/video/khronos"
    72 if test x$srcdir != x.; then
    73     INCLUDE="-Iinclude $INCLUDE"
    74 elif test -d .hg; then
    75     AC_MSG_ERROR([
    76 *** When building from Mercurial you should configure and build in a
    77     separate directory so you don't clobber SDL_config.h, SDL_revision.h
    78 ])
    79 fi
    80 BASE_CFLAGS=""
    81 BASE_LDFLAGS=""
    82 case "$host" in
    83     *-*-cygwin*)
    84         # We build SDL on cygwin without the UNIX emulation layer
    85         save_CFLAGS="$CFLAGS"
    86         have_no_cygwin=no
    87         AC_MSG_CHECKING(for GCC -mno-cygwin option)
    88         CFLAGS="$save_CFLAGS -mno-cygwin"
    89 
    90         AC_TRY_COMPILE([
    91         ],[
    92         ],[
    93         have_no_cygwin=yes
    94         ])
    95         AC_MSG_RESULT($have_no_cygwin)
    96         CFLAGS="$save_CFLAGS"
    97 
    98         if test x$have_no_cygwin = xyes; then
    99             BASE_CFLAGS="-mno-cygwin"
   100             BASE_LDFLAGS="-mno-cygwin"
   101         fi
   102         BASE_CFLAGS="$BASE_CFLAGS -I/usr/include/mingw"
   103         ;;
   104 esac
   105 # Uncomment the following line if you want to force SDL and applications
   106 # built with it to be compiled for a particular architecture.
   107 #AX_GCC_ARCHFLAG([no], [BASE_CFLAGS="$BASE_CFLAGS $ax_cv_gcc_archflag]")
   108 BUILD_CFLAGS="$CFLAGS $CPPFLAGS -DUSING_GENERATED_CONFIG_H"
   109 # The default optimization for SDL is -O3 (Bug #31)
   110 if test "x$orig_CFLAGS" = x; then
   111     BUILD_CFLAGS=`echo $BUILD_CFLAGS | sed 's/-O2/-O3/'`
   112 fi
   113 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
   114 BUILD_LDFLAGS="$LDFLAGS"
   115 EXTRA_LDFLAGS="$BASE_LDFLAGS"
   116 ## These are common directories to find software packages
   117 #for path in /usr/freeware /usr/pkg /usr/X11R6 /usr/local; do
   118 #    if test -d $path/include; then
   119 #        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
   120 #    fi
   121 #    if test -d $path/lib; then
   122 #        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
   123 #    fi
   124 #done
   125 SDL_CFLAGS="$BASE_CFLAGS"
   126 SDL_LIBS="-lSDL2 $BASE_LDFLAGS"
   127 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"
   128 CFLAGS="$CFLAGS $EXTRA_CFLAGS"
   129 LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
   130 
   131 dnl set this to use on systems that use lib64 instead of lib
   132 base_libdir=`echo \${libdir} | sed 's/.*\/\(.*\)/\1/; q'`
   133 
   134 dnl Function to find a library in the compiler search path
   135 find_lib()
   136 {
   137     gcc_bin_path=[`$CC -print-search-dirs 2>/dev/null | fgrep programs: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   138     gcc_lib_path=[`$CC -print-search-dirs 2>/dev/null | fgrep libraries: | sed 's/[^=]*=\(.*\)/\1/' | sed 's/:/ /g'`]
   139     env_lib_path=[`echo $LIBS $LDFLAGS $* | sed 's/-L[ ]*//g'`]
   140     if test "$cross_compiling" = yes; then
   141         host_lib_path=""
   142     else
   143         host_lib_path="/usr/$base_libdir /usr/local/$base_libdir"
   144     fi
   145     for path in $env_lib_path $gcc_bin_path $gcc_lib_path $host_lib_path; do
   146         lib=[`ls -- $path/$1 2>/dev/null | sed -e '/\.so\..*\./d' -e 's,.*/,,' | sort | tail -1`]
   147         if test x$lib != x; then
   148             echo $lib
   149             return
   150         fi
   151     done
   152 }
   153 
   154 dnl Check for compiler characteristics
   155 AC_C_CONST
   156 AC_C_INLINE
   157 AC_C_VOLATILE
   158 
   159 dnl See whether we want assertions for debugging/sanity checking SDL itself.
   160 AC_ARG_ENABLE(assertions,
   161 AC_HELP_STRING([--enable-assertions],
   162                [Enable internal sanity checks (auto/disabled/release/enabled/paranoid) [[default=auto]]]),
   163               , enable_assertions=auto)
   164 case "$enable_assertions" in
   165     auto) # Use optimization settings to determine assertion level
   166         ;;
   167     disabled)
   168         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 0, [ ])
   169         ;;
   170     release)
   171         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 1, [ ])
   172         ;;
   173     enabled)
   174         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 2, [ ])
   175         ;;
   176     paranoid)
   177         AC_DEFINE(SDL_DEFAULT_ASSERT_LEVEL, 3, [ ])
   178         ;;
   179     *)
   180         AC_MSG_ERROR([*** unknown assertion level. stop.])
   181         ;;
   182 esac
   183 
   184 dnl See whether we can use gcc style dependency tracking
   185 AC_ARG_ENABLE(dependency-tracking,
   186 AC_HELP_STRING([--enable-dependency-tracking],
   187                [Use gcc -MMD -MT dependency tracking [[default=yes]]]),
   188               , enable_dependency_tracking=yes)
   189 if test x$enable_dependency_tracking = xyes; then
   190     have_gcc_mmd_mt=no
   191     AC_MSG_CHECKING(for GCC -MMD -MT option)
   192     AC_TRY_COMPILE([
   193     #if !defined(__GNUC__) || __GNUC__ < 3
   194     #error Dependency tracking requires GCC 3.0 or newer
   195     #endif
   196     ],[
   197     ],[
   198     have_gcc_mmd_mt=yes
   199     ])
   200     AC_MSG_RESULT($have_gcc_mmd_mt)
   201 
   202     if test x$have_gcc_mmd_mt = xyes; then
   203         DEPENDENCY_TRACKING_OPTIONS="-MMD -MT \$@"
   204     fi
   205 fi
   206 
   207 AC_MSG_CHECKING(for linker option --no-undefined)
   208 have_no_undefined=no
   209 case "$host" in
   210     dnl Skip this on platforms where it is just simply busted.
   211     *-*-openbsd*)
   212         ;;
   213 
   214     *)
   215         save_LDFLAGS="$LDFLAGS"
   216         LDFLAGS="$LDFLAGS -Wl,--no-undefined"
   217         AC_TRY_LINK([
   218         ],[
   219         ],[
   220         have_no_undefined=yes
   221         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,--no-undefined"
   222         ])
   223         LDFLAGS="$save_LDFLAGS"
   224         ;;
   225 esac
   226 AC_MSG_RESULT($have_no_undefined)
   227 
   228 dnl See whether we are allowed to use the system C library
   229 AC_ARG_ENABLE(libc,
   230 AC_HELP_STRING([--enable-libc], [Use the system C library [[default=yes]]]),
   231               , enable_libc=yes)
   232 if test x$enable_libc = xyes; then
   233     AC_DEFINE(HAVE_LIBC, 1, [ ])
   234 
   235     dnl Check for C library headers
   236     AC_HEADER_STDC
   237     AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h wchar.h inttypes.h stdint.h limits.h ctype.h math.h float.h iconv.h signal.h)
   238 
   239     dnl Check for typedefs, structures, etc.
   240     AC_TYPE_SIZE_T
   241 
   242     dnl Check for defines
   243     AC_CHECK_DEFINE(M_PI, math.h)
   244 
   245     dnl Checks for library functions.
   246     case "$host" in
   247     *-*-cygwin* | *-*-mingw32*)
   248         ;;
   249     *)
   250         AC_FUNC_ALLOCA
   251         ;;
   252     esac
   253 
   254     AC_FUNC_MEMCMP
   255     if test x$ac_cv_func_memcmp_working = xyes; then
   256         AC_DEFINE(HAVE_MEMCMP, 1, [ ])
   257     fi
   258     AC_FUNC_STRTOD
   259     if test x$ac_cv_func_strtod = xyes; then
   260         AC_DEFINE(HAVE_STRTOD, 1, [ ])
   261     fi
   262     AC_CHECK_FUNC(mprotect,
   263         AC_TRY_COMPILE([
   264           #include <sys/types.h>
   265           #include <sys/mman.h>
   266         ],[
   267         ],[
   268         AC_DEFINE(HAVE_MPROTECT, 1, [ ])
   269         ]),
   270     )
   271     AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv qsort abs bcopy memset memcpy memmove wcslen wcscmp strlen strlcpy strlcat _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval poll)
   272 
   273     AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
   274     AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf fabs fabsf floor floorf fmod fmodf log logf pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   275 
   276     AC_CHECK_LIB(iconv, iconv_open, [LIBS="$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         save_CFLAGS="$CFLAGS"
  2070         dnl Work around that we don't have Objective-C support in autoconf
  2071         CFLAGS="$CFLAGS -x objective-c"
  2072         AC_MSG_CHECKING(for Metal framework)
  2073         have_metal=no
  2074         AC_TRY_COMPILE([
  2075           #import <Cocoa/Cocoa.h>
  2076           #import <Metal/Metal.h>
  2077           #import <QuartzCore/CAMetalLayer.h>
  2078 
  2079           #if !TARGET_CPU_X86_64
  2080           #error Metal doesn't work on this configuration
  2081           #endif
  2082         ],[
  2083         ],[
  2084         have_metal=yes
  2085         ])
  2086         CFLAGS="$save_CFLAGS"
  2087         AC_MSG_RESULT($have_metal)
  2088         if test x$have_metal = xyes; then
  2089             AC_DEFINE(SDL_VIDEO_RENDER_METAL, 1, [ ])
  2090             SOURCES="$SOURCES $srcdir/src/render/metal/*.m"
  2091             SUMMARY_video="${SUMMARY_video} metal"
  2092         fi
  2093     fi
  2094 }
  2095 
  2096 
  2097 dnl Find DirectFB
  2098 CheckDirectFB()
  2099 {
  2100     AC_ARG_ENABLE(video-directfb,
  2101 AC_HELP_STRING([--enable-video-directfb], [use DirectFB video driver [[default=no]]]),
  2102                   , enable_video_directfb=no)
  2103     if test x$enable_video = xyes -a x$enable_video_directfb = xyes; then
  2104         video_directfb=no
  2105 
  2106         DIRECTFB_REQUIRED_VERSION=1.0.0
  2107         AC_PATH_PROGS(DIRECTFBCONFIG, directfb-config, no, [$prefix/bin:$PATH])
  2108         if test x$DIRECTFBCONFIG = xno; then
  2109             AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2110             if test x$PKG_CONFIG != xno; then
  2111                 if $PKG_CONFIG --atleast-pkgconfig-version 0.7 && $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb; then
  2112                     DIRECTFB_CFLAGS=`$PKG_CONFIG --cflags directfb`
  2113                     DIRECTFB_LIBS=`$PKG_CONFIG --libs directfb`
  2114                     DIRECTFB_PREFIX=`$PKG_CONFIG --variable=prefix directfb`
  2115                     video_directfb=yes
  2116                 fi
  2117             fi
  2118         else
  2119             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
  2120             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2121             set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
  2122             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
  2123             if test $HAVE_VERSION -ge $NEED_VERSION; then
  2124                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`
  2125                 DIRECTFB_LIBS=`$DIRECTFBCONFIG --libs`
  2126                 DIRECTFB_PREFIX=`$DIRECTFBCONFIG --prefix`
  2127                 video_directfb=yes
  2128             fi
  2129         fi
  2130         if test x$video_directfb = xyes; then
  2131             # SuSE 11.1 installs directfb-config without directfb-devel
  2132             save_CPPFLAGS="$CPPFLAGS"
  2133             CPPFLAGS="$CPPFLAGS $DIRECTFB_CFLAGS"
  2134             AC_CHECK_HEADER(directfb.h, have_directfb_hdr=yes, have_directfb_hdr=no)
  2135             CPPFLAGS="$save_CPPFLAGS"
  2136             video_directfb=$have_directfb_hdr
  2137         fi
  2138         AC_MSG_CHECKING(for DirectFB $DIRECTFB_REQUIRED_VERSION support)
  2139         AC_MSG_RESULT($video_directfb)
  2140 
  2141         if test x$video_directfb = xyes; then
  2142             AC_ARG_ENABLE(directfb-shared,
  2143 AC_HELP_STRING([--enable-directfb-shared], [dynamically load directfb support [[default=yes]]]),
  2144                               , enable_directfb_shared=yes)
  2145 
  2146             AC_DEFINE(SDL_VIDEO_DRIVER_DIRECTFB, 1, [ ])
  2147             SOURCES="$SOURCES $srcdir/src/video/directfb/*.c"
  2148             EXTRA_CFLAGS="$EXTRA_CFLAGS $DIRECTFB_CFLAGS"
  2149 
  2150             AC_MSG_CHECKING(for directfb dynamic loading support)
  2151             directfb_shared=no
  2152             directfb_lib=[`find_lib "libdirectfb*.so.*" "$DIRECTFB_LIBS"`]
  2153             # | sed 's/.*\/\(.*\)/\1/; q'`]
  2154 AC_MSG_WARN("directfb $directfb_lib")
  2155             if test x$have_loadso != xyes && \
  2156                test x$enable_directfb_shared = xyes; then
  2157                 AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic directfb loading])
  2158             fi
  2159             if test x$have_loadso = xyes && \
  2160                test x$enable_directfb_shared = xyes && test x$directfb_lib != x; then
  2161                 directfb_shared=yes
  2162                 echo "-- $directfb_lib_spec -> $directfb_lib"
  2163                 AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC, "$directfb_lib", [ ])
  2164                 SUMMARY_video="${SUMMARY_video} directfb(dynamic)"
  2165             else
  2166                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $DIRECTFB_LIBS"
  2167                 SUMMARY_video="${SUMMARY_video} directfb"
  2168             fi
  2169             AC_MSG_RESULT($directfb_shared)
  2170             SDL_CFLAGS="$SDL_CFLAGS $DIRECTFB_CFLAGS"
  2171             have_video=yes
  2172         fi
  2173     fi
  2174 }
  2175 
  2176 dnl Find KMSDRM
  2177 CheckKMSDRM()
  2178 {
  2179     AC_ARG_ENABLE(video-kmsdrm,
  2180 AC_HELP_STRING([--enable-video-kmsdrm], [use KMSDRM video driver [[default=no]]]),
  2181                   , enable_video_kmsdrm=no)
  2182 
  2183     if test x$enable_video = xyes -a x$enable_video_kmsdrm = xyes; then
  2184         video_kmsdrm=no
  2185         libdrm_avail=no
  2186         libgbm_avail=no
  2187 
  2188         LIBDRM_REQUIRED_VERSION=2.4.46
  2189         LIBGBM_REQUIRED_VERSION=9.0.0
  2190 
  2191         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2192         if test x$PKG_CONFIG != xno; then
  2193             if $PKG_CONFIG --atleast-pkgconfig-version 0.7; then
  2194                 if $PKG_CONFIG --atleast-version $LIBDRM_REQUIRED_VERSION libdrm; then
  2195                     LIBDRM_CFLAGS=`$PKG_CONFIG --cflags libdrm`
  2196                     LIBDRM_LIBS=`$PKG_CONFIG --libs libdrm`
  2197                     LIBDRM_PREFIX=`$PKG_CONFIG --variable=prefix libdrm`
  2198                     libdrm_avail=yes
  2199                 fi
  2200                 if $PKG_CONFIG --atleast-version $LIBGBM_REQUIRED_VERSION gbm; then
  2201                     LIBGBM_CFLAGS=`$PKG_CONFIG --cflags gbm`
  2202                     LIBGBM_LIBS=`$PKG_CONFIG --libs gbm`
  2203                     LIBGBM_PREFIX=`$PKG_CONFIG --variable=prefix gbm`
  2204                     libgbm_avail=yes
  2205                 fi
  2206                 if test x$libdrm_avail = xyes -a x$libgbm_avail = xyes; then
  2207                     video_kmsdrm=yes
  2208                 fi
  2209  
  2210                 AC_MSG_CHECKING(for libdrm $LIBDRM_REQUIRED_VERSION library for kmsdrm support)
  2211                 AC_MSG_RESULT($libdrm_avail)
  2212                 AC_MSG_CHECKING(for libgbm $LIBGBM_REQUIRED_VERSION library for kmsdrm support)
  2213                 AC_MSG_RESULT($libgbm_avail)
  2214 
  2215                 if test x$video_kmsdrm = xyes; then
  2216                     AC_ARG_ENABLE(kmsdrm-shared,
  2217 AC_HELP_STRING([--enable-kmsdrm-shared], [dynamically load kmsdrm support [[default=yes]]]),
  2218                               , enable_kmsdrm_shared=yes)
  2219 
  2220                     AC_DEFINE(SDL_VIDEO_DRIVER_KMSDRM, 1, [ ])
  2221                     SOURCES="$SOURCES $srcdir/src/video/kmsdrm/*.c"
  2222                     EXTRA_CFLAGS="$EXTRA_CFLAGS $LIBDRM_CFLAGS $LIBGBM_CFLAGS"
  2223 
  2224                     AC_MSG_CHECKING(for kmsdrm dynamic loading support)
  2225                     kmsdrm_shared=no
  2226                     drm_lib=[`find_lib "libdrm.so.*" "$DRM_LIBS"`]
  2227                     gbm_lib=[`find_lib "libgbm.so.*" "$DRM_LIBS"`]
  2228                     if test x$have_loadso != xyes && \
  2229                        test x$enable_kmsdrm_shared = xyes; then
  2230                         AC_MSG_WARN([You must have SDL_LoadObject() support for dynamic kmsdrm loading])
  2231                     fi
  2232                     if test x$have_loadso = xyes && \
  2233                        test x$enable_kmsdrm_shared = xyes && test x$drm_lib != x && test x$gbm_lib != x; then
  2234                         kmsdrm_shared=yes
  2235                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC, "$drm_lib", [ ])
  2236                         AC_DEFINE_UNQUOTED(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC_GBM, "$gbm_lib", [ ])
  2237                         AC_DEFINE_UNQUOTED(HAVE_KMSDRM_SHARED, "TRUE", [ ])
  2238                         SUMMARY_video="${SUMMARY_video} kmsdrm(dynamic)"
  2239                     else
  2240                         EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LIBDRM_LIBS $LIBGBM_LIBS"
  2241                         SUMMARY_video="${SUMMARY_video} kmsdrm"
  2242                     fi
  2243                     AC_MSG_RESULT($kmsdrm_shared)
  2244                     have_video=yes
  2245                 fi
  2246             fi
  2247         fi
  2248     fi
  2249 }
  2250 
  2251 dnl rcg04172001 Set up the Null video driver.
  2252 CheckDummyVideo()
  2253 {
  2254     AC_ARG_ENABLE(video-dummy,
  2255 AC_HELP_STRING([--enable-video-dummy], [use dummy video driver [[default=yes]]]),
  2256                   , enable_video_dummy=yes)
  2257     if test x$enable_video_dummy = xyes; then
  2258         AC_DEFINE(SDL_VIDEO_DRIVER_DUMMY, 1, [ ])
  2259         SOURCES="$SOURCES $srcdir/src/video/dummy/*.c"
  2260         have_video=yes
  2261         SUMMARY_video="${SUMMARY_video} dummy"
  2262     fi
  2263 }
  2264 
  2265 dnl Set up the QNX video driver if enabled
  2266 CheckQNXVideo()
  2267 {
  2268     if test x$enable_video = xyes; then
  2269         AC_DEFINE(SDL_VIDEO_DRIVER_QNX, 1, [ ])
  2270         SOURCES="$SOURCES $srcdir/src/video/qnx/*.c"
  2271         have_video=yes
  2272         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lscreen -lEGL -lGLESv2"
  2273         SUMMARY_video="${SUMMARY_video} qnx"
  2274     fi
  2275 }
  2276 
  2277 dnl Set up the QNX audio driver if enabled
  2278 CheckQNXAudio()
  2279 {
  2280     if test x$enable_audio = xyes; then
  2281         AC_DEFINE(SDL_AUDIO_DRIVER_QSA, 1, [ ])
  2282         SOURCES="$SOURCES $srcdir/src/audio/qsa/*.c"
  2283         have_audio=yes
  2284         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lasound"
  2285         SUMMARY_audio="${SUMMARY_audio} qsa"
  2286     fi
  2287 }
  2288 
  2289 dnl Check to see if OpenGL support is desired
  2290 AC_ARG_ENABLE(video-opengl,
  2291 AC_HELP_STRING([--enable-video-opengl], [include OpenGL support [[default=yes]]]),
  2292               , enable_video_opengl=yes)
  2293 
  2294 dnl Find OpenGL
  2295 CheckOpenGLX11()
  2296 {
  2297     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2298         AC_MSG_CHECKING(for OpenGL (GLX) support)
  2299         video_opengl=no
  2300         AC_TRY_COMPILE([
  2301          #include <GL/gl.h>
  2302          #include <GL/glx.h>
  2303         ],[
  2304         ],[
  2305         video_opengl=yes
  2306         ])
  2307         AC_MSG_RESULT($video_opengl)
  2308         if test x$video_opengl = xyes; then
  2309             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2310             AC_DEFINE(SDL_VIDEO_OPENGL_GLX, 1, [ ])
  2311             AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2312             SUMMARY_video="${SUMMARY_video} opengl"
  2313         fi
  2314     fi
  2315 }
  2316 
  2317 dnl Check to see if OpenGL ES support is desired
  2318 AC_ARG_ENABLE(video-opengles,
  2319 AC_HELP_STRING([--enable-video-opengles], [include OpenGL ES support [[default=yes]]]),
  2320               , enable_video_opengles=yes)
  2321 AC_ARG_ENABLE(video-opengles1,
  2322 AC_HELP_STRING([--enable-video-opengles1], [include OpenGL ES 1.1 support [[default=yes]]]),
  2323               , enable_video_opengles1=yes)
  2324 AC_ARG_ENABLE(video-opengles2,
  2325 AC_HELP_STRING([--enable-video-opengles2], [include OpenGL ES 2.0 support [[default=yes]]]),
  2326               , enable_video_opengles2=yes)
  2327 
  2328 dnl Find OpenGL ES
  2329 CheckOpenGLESX11()
  2330 {
  2331     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2332         AC_MSG_CHECKING(for EGL support)
  2333         video_opengl_egl=no
  2334         AC_TRY_COMPILE([
  2335           #define LINUX
  2336           #define EGL_API_FB
  2337           #include <EGL/egl.h>
  2338           #include <EGL/eglext.h>
  2339         ],[
  2340         ],[
  2341         video_opengl_egl=yes
  2342         ])
  2343         AC_MSG_RESULT($video_opengl_egl)
  2344         if test x$video_opengl_egl = xyes; then
  2345             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2346         fi
  2347             
  2348         if test x$enable_video_opengles1 = xyes; then
  2349             AC_MSG_CHECKING(for OpenGL ES v1 headers)
  2350             video_opengles_v1=no
  2351             AC_TRY_COMPILE([
  2352              #include <GLES/gl.h>
  2353              #include <GLES/glext.h>
  2354             ],[
  2355             ],[
  2356             video_opengles_v1=yes
  2357             ])
  2358             AC_MSG_RESULT($video_opengles_v1)
  2359             if test x$video_opengles_v1 = xyes; then
  2360                 AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  2361                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  2362                 SUMMARY_video="${SUMMARY_video} opengl_es1"
  2363             fi
  2364         fi
  2365         
  2366         if test x$enable_video_opengles2 = xyes; then
  2367             AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2368             video_opengles_v2=no
  2369             AC_TRY_COMPILE([
  2370              #include <GLES2/gl2.h>
  2371              #include <GLES2/gl2ext.h>
  2372             ],[
  2373             ],[
  2374             video_opengles_v2=yes
  2375             ])
  2376             AC_MSG_RESULT($video_opengles_v2)
  2377             if test x$video_opengles_v2 = xyes; then
  2378                 AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2379                 AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2380                 SUMMARY_video="${SUMMARY_video} opengl_es2"
  2381             fi
  2382         fi
  2383     fi
  2384 }
  2385 
  2386 dnl Check for Windows OpenGL
  2387 CheckWINDOWSGL()
  2388 {
  2389     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2390         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2391         AC_DEFINE(SDL_VIDEO_OPENGL_WGL, 1, [ ])
  2392         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2393         SUMMARY_video="${SUMMARY_video} opengl"
  2394     fi
  2395 }
  2396 
  2397 dnl Check for Windows OpenGL
  2398 CheckWINDOWSGLES()
  2399 {
  2400     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2401 
  2402         AC_MSG_CHECKING(for EGL support)
  2403         video_opengl_egl=no
  2404         AC_TRY_COMPILE([
  2405          #include <EGL/egl.h>
  2406         ],[
  2407         ],[
  2408         video_opengl_egl=yes
  2409         ])
  2410         AC_MSG_RESULT($video_opengl_egl)
  2411         if test x$video_opengl_egl = xyes; then
  2412             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2413             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2414             SUMMARY_video="${SUMMARY_video} opengl_es1"
  2415         fi
  2416        
  2417         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2418         video_opengles_v2=no
  2419         AC_TRY_COMPILE([
  2420          #include <GLES2/gl2.h>
  2421          #include <GLES2/gl2ext.h>
  2422         ],[
  2423         ],[
  2424         video_opengles_v2=yes
  2425         ])
  2426         AC_MSG_RESULT($video_opengles_v2)
  2427         if test x$video_opengles_v2 = xyes; then
  2428             AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2429             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2430             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2431             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2432         fi
  2433     fi
  2434 }
  2435 
  2436 dnl Check for Haiku OpenGL
  2437 CheckHaikuGL()
  2438 {
  2439     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2440         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2441         AC_DEFINE(SDL_VIDEO_OPENGL_HAIKU, 1, [ ])
  2442         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2443         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lGL"
  2444         SUMMARY_video="${SUMMARY_video} opengl"
  2445     fi
  2446 }
  2447 
  2448 dnl Check for MacOS OpenGL
  2449 CheckMacGL()
  2450 {
  2451     if test x$enable_video = xyes -a x$enable_video_opengl = xyes; then
  2452         AC_DEFINE(SDL_VIDEO_OPENGL, 1, [ ])
  2453         AC_DEFINE(SDL_VIDEO_OPENGL_CGL, 1, [ ])
  2454         AC_DEFINE(SDL_VIDEO_RENDER_OGL, 1, [ ])
  2455         SUMMARY_video="${SUMMARY_video} opengl"
  2456     fi
  2457 }
  2458 
  2459 CheckEmscriptenGLES()
  2460 {
  2461     if test x$enable_video = xyes -a x$enable_video_opengles = xyes; then
  2462         AC_MSG_CHECKING(for EGL support)
  2463         video_opengl_egl=no
  2464         AC_TRY_COMPILE([
  2465          #include <EGL/egl.h>
  2466         ],[
  2467         ],[
  2468         video_opengl_egl=yes
  2469         ])
  2470         AC_MSG_RESULT($video_opengl_egl)
  2471         if test x$video_opengl_egl = xyes; then
  2472             AC_DEFINE(SDL_VIDEO_OPENGL_EGL, 1, [ ])
  2473         fi
  2474 
  2475         AC_MSG_CHECKING(for OpenGL ES v2 headers)
  2476         video_opengles_v2=no
  2477         AC_TRY_COMPILE([
  2478          #include <GLES2/gl2.h>
  2479          #include <GLES2/gl2ext.h>
  2480         ],[
  2481         ],[
  2482         video_opengles_v2=yes
  2483         ])
  2484         AC_MSG_RESULT($video_opengles_v2)
  2485         if test x$video_opengles_v2 = xyes; then
  2486             AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  2487             AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  2488             SUMMARY_video="${SUMMARY_video} opengl_es2"
  2489         fi
  2490     fi
  2491 }
  2492 
  2493 dnl Check to see if Vulkan support is desired
  2494 AC_ARG_ENABLE(video-vulkan,
  2495 AC_HELP_STRING([--enable-video-vulkan], [include Vulkan support [[default=yes]]]),
  2496               , enable_video_vulkan=yes)
  2497 
  2498 dnl Find Vulkan Header
  2499 CheckVulkan()
  2500 {
  2501     if test x$enable_video = xyes -a x$enable_video_vulkan = xyes; then
  2502         case "$host" in
  2503             *-*-android*)
  2504                 AC_TRY_COMPILE([
  2505                   #if defined(__ARM_ARCH) && __ARM_ARCH < 7
  2506                   #error Vulkan doesn't work on this configuration
  2507                   #endif
  2508                 ],[
  2509                 ],[
  2510                 ],[
  2511                     enable_video_vulkan=no
  2512                 ])
  2513                 ;;
  2514             *-*-darwin*)
  2515                 save_CFLAGS="$CFLAGS"
  2516                 dnl Work around that we don't have Objective-C support in autoconf
  2517                 CFLAGS="$CFLAGS -x objective-c"
  2518                 AC_TRY_COMPILE([
  2519                   #include <Cocoa/Cocoa.h>
  2520                   #include <Metal/Metal.h>
  2521                   #include <QuartzCore/CAMetalLayer.h>
  2522 
  2523                   #if !TARGET_CPU_X86_64
  2524                   #error Vulkan doesn't work on this configuration
  2525                   #endif
  2526                 ],[
  2527                 ],[
  2528                 ],[
  2529                     enable_video_vulkan=no
  2530                 ])
  2531                 CFLAGS="$save_CFLAGS"
  2532                 ;;
  2533             *)
  2534                 ;;
  2535         esac
  2536         if test x$enable_video_vulkan = xno; then
  2537             # For reasons I am totally unable to see, I get an undefined macro error if
  2538             # I put this in the AC_TRY_COMPILE.
  2539             AC_MSG_WARN([Vulkan does not work on this configuration.])
  2540         fi
  2541     fi
  2542     if test x$enable_video_vulkan = xyes; then
  2543         AC_DEFINE(SDL_VIDEO_VULKAN, 1, [ ])
  2544         SUMMARY_video="${SUMMARY_video} vulkan"
  2545     fi
  2546 }
  2547 
  2548 dnl See if we can use the new unified event interface in Linux 2.4
  2549 CheckInputEvents()
  2550 {
  2551     dnl Check for Linux 2.4 unified input event interface support
  2552         AC_MSG_CHECKING(for Linux 2.4 unified input interface)
  2553         use_input_events=no
  2554         AC_TRY_COMPILE([
  2555           #include <linux/input.h>
  2556         ],[
  2557           #ifndef EVIOCGNAME
  2558           #error EVIOCGNAME() ioctl not available
  2559           #endif
  2560         ],[
  2561         use_input_events=yes
  2562         ])
  2563         AC_MSG_RESULT($use_input_events)
  2564         if test x$use_input_events = xyes; then
  2565             AC_DEFINE(SDL_INPUT_LINUXEV, 1, [ ])
  2566             SUMMARY_input="${SUMMARY_input} linuxev"
  2567         fi
  2568 }
  2569 
  2570 dnl See if we can use the kernel kd.h header
  2571 CheckInputKD()
  2572 {
  2573 
  2574     AC_MSG_CHECKING(for Linux kd.h)
  2575     use_input_kd=no
  2576     AC_TRY_COMPILE([
  2577       #include <linux/kd.h>
  2578       #include <linux/keyboard.h>
  2579     ],[
  2580         struct kbentry kbe;
  2581         kbe.kb_table = KG_CTRL;
  2582         ioctl(0, KDGKBENT, &kbe);
  2583     ],[
  2584     use_input_kd=yes
  2585     ])
  2586     AC_MSG_RESULT($use_input_kd)
  2587     if test x$use_input_kd = xyes; then
  2588         AC_DEFINE(SDL_INPUT_LINUXKD, 1, [ ])
  2589         SUMMARY_input="${SUMMARY_input} linuxkd"
  2590     fi
  2591 }
  2592 
  2593 dnl See if the platform offers libudev for device enumeration and hotplugging.
  2594 CheckLibUDev()
  2595 {
  2596     AC_ARG_ENABLE(libudev,
  2597 AC_HELP_STRING([--enable-libudev], [enable libudev support [[default=yes]]]),
  2598                         , enable_libudev=yes)
  2599     if test x$enable_libudev = xyes; then
  2600         AC_CHECK_HEADER(libudev.h,
  2601                         have_libudev_h_hdr=yes,
  2602                         have_libudev_h_hdr=no)
  2603         if test x$have_libudev_h_hdr = xyes; then
  2604             AC_DEFINE(HAVE_LIBUDEV_H, 1, [ ])
  2605 
  2606             udev_lib=[`find_lib "libudev.so.*" "" | sed 's/.*\/\(.*\)/\1/; q'`]
  2607             if test x$udev_lib != x; then
  2608                 echo "-- dynamic udev -> $udev_lib"
  2609                 AC_DEFINE_UNQUOTED(SDL_UDEV_DYNAMIC, "$udev_lib", [ ])
  2610             fi
  2611         fi
  2612     fi
  2613 }
  2614 
  2615 dnl See if the platform offers libdbus for various IPC techniques.
  2616 CheckDBus()
  2617 {
  2618     AC_ARG_ENABLE(dbus,
  2619 AC_HELP_STRING([--enable-dbus], [enable D-Bus support [[default=yes]]]),
  2620                         , enable_dbus=yes)
  2621     if test x$enable_dbus = xyes; then
  2622         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2623         if test x$PKG_CONFIG != xno; then
  2624             DBUS_CFLAGS=`$PKG_CONFIG --cflags dbus-1`
  2625             save_CFLAGS="$CFLAGS"
  2626             CFLAGS="$save_CFLAGS $DBUS_CFLAGS"
  2627             AC_CHECK_HEADER(dbus/dbus.h,
  2628                             have_dbus_dbus_h_hdr=yes,
  2629                             have_dbus_dbus_h_hdr=no)
  2630             CFLAGS="$save_CFLAGS"
  2631             if test x$have_dbus_dbus_h_hdr = xyes; then
  2632                 AC_DEFINE(HAVE_DBUS_DBUS_H, 1, [ ])
  2633                 EXTRA_CFLAGS="$EXTRA_CFLAGS $DBUS_CFLAGS"
  2634                 SOURCES="$SOURCES $srcdir/src/core/linux/SDL_dbus.c"
  2635             fi
  2636         fi
  2637     fi
  2638 }
  2639 
  2640 dnl See if the platform wanna IME support.
  2641 CheckIME()
  2642 {
  2643     AC_ARG_ENABLE(ime,
  2644 AC_HELP_STRING([--enable-ime], [enable IME support [[default=yes]]]),
  2645                   , enable_ime=yes)
  2646     if test x$enable_ime = xyes; then
  2647         AC_DEFINE(SDL_USE_IME, 1, [ ])
  2648             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ime.c"
  2649     fi
  2650 }
  2651 
  2652 dnl See if the platform has libibus IME support.
  2653 CheckIBus()
  2654 {
  2655     AC_ARG_ENABLE(ibus,
  2656 AC_HELP_STRING([--enable-ibus], [enable IBus support [[default=yes]]]),
  2657                   , enable_ibus=yes)
  2658     if test x$enable_ibus = xyes; then
  2659         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2660         if test x$PKG_CONFIG != xno; then
  2661             IBUS_CFLAGS=`$PKG_CONFIG --cflags ibus-1.0`
  2662             save_CFLAGS="$CFLAGS"
  2663             CFLAGS="$save_CFLAGS $IBUS_CFLAGS"
  2664             AC_CHECK_HEADER(ibus-1.0/ibus.h,
  2665                             have_ibus_ibus_h_hdr=yes,
  2666                             have_ibus_ibus_h_hdr=no)
  2667             AC_CHECK_HEADER(sys/inotify.h,
  2668                             have_inotify_inotify_h_hdr=yes,
  2669                             have_inotify_inotify_h_hdr=no)
  2670             CFLAGS="$save_CFLAGS"
  2671             if test x$have_ibus_ibus_h_hdr = xyes; then
  2672                 if test x$enable_ime != xyes; then
  2673                     AC_MSG_WARN([IME support is required for IBus.])
  2674                     have_ibus_ibus_h_hdr=no
  2675                 elif test x$enable_dbus != xyes; then
  2676                     AC_MSG_WARN([DBus support is required for IBus.])
  2677                     have_ibus_ibus_h_hdr=no
  2678                 elif test x$have_inotify_inotify_h_hdr != xyes; then
  2679                     AC_MSG_WARN([INotify support is required for IBus.])
  2680                     have_ibus_ibus_h_hdr=no
  2681                 else
  2682                     AC_DEFINE(HAVE_IBUS_IBUS_H, 1, [ ])
  2683                     EXTRA_CFLAGS="$EXTRA_CFLAGS $IBUS_CFLAGS"
  2684                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_ibus.c"
  2685                fi
  2686             fi
  2687         fi
  2688     fi
  2689 }
  2690 
  2691 dnl See if the platform has fcitx IME support.
  2692 CheckFcitx()
  2693 {
  2694     AC_ARG_ENABLE(fcitx,
  2695 AC_HELP_STRING([--enable-fcitx], [enable fcitx support [[default=yes]]]),
  2696                   , enable_fcitx=yes)
  2697     if test x$enable_fcitx = xyes; then
  2698         AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
  2699         if test x$PKG_CONFIG != xno; then
  2700             FCITX_CFLAGS=`$PKG_CONFIG --cflags fcitx`
  2701             CFLAGS="$CFLAGS $FCITX_CFLAGS"
  2702             AC_CHECK_HEADER(fcitx/frontend.h,
  2703                             have_fcitx_frontend_h_hdr=yes,
  2704                             have_fcitx_frontend_h_hdr=no)
  2705             CFLAGS="$save_CFLAGS"
  2706             if test x$have_fcitx_frontend_h_hdr = xyes; then
  2707                 if test x$enable_ime != xyes; then
  2708                     AC_MSG_WARN([IME support is required for fcitx.])
  2709                     have_fcitx_frontend_h_hdr=no
  2710                 elif test x$enable_dbus != xyes; then
  2711                     AC_MSG_WARN([DBus support is required for fcitx.])
  2712                     have_fcitx_frontend_h_hdr=no
  2713                 else
  2714                     AC_DEFINE(HAVE_FCITX_FRONTEND_H, 1, [ ])
  2715                     EXTRA_CFLAGS="$EXTRA_CFLAGS $FCITX_CFLAGS"
  2716                     SOURCES="$SOURCES $srcdir/src/core/linux/SDL_fcitx.c"
  2717                fi
  2718             fi
  2719         fi
  2720     fi
  2721 }
  2722 
  2723 dnl See if we can use the Touchscreen input library
  2724 CheckTslib()
  2725 {
  2726     AC_ARG_ENABLE(input-tslib,
  2727 AC_HELP_STRING([--enable-input-tslib], [use the Touchscreen library for input [[default=yes]]]),
  2728                   , enable_input_tslib=yes)
  2729     if test x$enable_input_tslib = xyes; then
  2730         AC_MSG_CHECKING(for Touchscreen library support)
  2731         enable_input_tslib=no
  2732         AC_TRY_COMPILE([
  2733           #include "tslib.h"
  2734         ],[
  2735         ],[
  2736         enable_input_tslib=yes
  2737         ])
  2738         AC_MSG_RESULT($enable_input_tslib)
  2739         if test x$enable_input_tslib = xyes; then
  2740             AC_DEFINE(SDL_INPUT_TSLIB, 1, [ ])
  2741             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts"
  2742             SUMMARY_input="${SUMMARY_input} ts"
  2743         fi
  2744     fi
  2745 }
  2746 
  2747 dnl See what type of thread model to use on Linux and Solaris
  2748 CheckPTHREAD()
  2749 {
  2750     dnl Check for pthread support
  2751     AC_ARG_ENABLE(pthreads,
  2752 AC_HELP_STRING([--enable-pthreads], [use POSIX threads for multi-threading [[default=yes]]]),
  2753                   , enable_pthreads=yes)
  2754     dnl This is used on Linux for glibc binary compatibility (Doh!)
  2755     AC_ARG_ENABLE(pthread-sem,
  2756 AC_HELP_STRING([--enable-pthread-sem], [use pthread semaphores [[default=yes]]]),
  2757                   , enable_pthread_sem=yes)
  2758     case "$host" in
  2759          *-*-android*)
  2760             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2761             pthread_lib=""
  2762             ;;
  2763         *-*-linux*|*-*-uclinux*)
  2764             pthread_cflags="-D_REENTRANT"
  2765             pthread_lib="-lpthread"
  2766             ;;
  2767         *-*-bsdi*)
  2768             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2769             pthread_lib=""
  2770             ;;
  2771         *-*-darwin*)
  2772             pthread_cflags="-D_THREAD_SAFE"
  2773 # causes Carbon.p complaints?
  2774 #            pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2775             ;;
  2776         *-*-freebsd*|*-*-dragonfly*)
  2777             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2778             pthread_lib="-pthread"
  2779             ;;
  2780         *-*-netbsd*)
  2781             pthread_cflags="-D_REENTRANT -D_THREAD_SAFE"
  2782             pthread_lib="-lpthread"
  2783             ;;
  2784         *-*-openbsd*)
  2785             pthread_cflags="-D_REENTRANT"
  2786             pthread_lib="-pthread"
  2787             ;;
  2788         *-*-solaris2.9)
  2789             # From Solaris 9+, posix4's preferred name is rt.
  2790             pthread_cflags="-D_REENTRANT"
  2791             pthread_lib="-lpthread -lrt"
  2792             ;;
  2793         *-*-solaris2.10)
  2794             # Solaris 10+ merged pthread into libc.
  2795             pthread_cflags="-D_REENTRANT"
  2796             pthread_lib="-lrt"
  2797             ;;
  2798         *-*-solaris*)
  2799             # Solaris 11+ merged rt into libc.
  2800             pthread_cflags="-D_REENTRANT"
  2801             pthread_lib=""
  2802             ;;
  2803         *-*-sysv5*)
  2804             pthread_cflags="-D_REENTRANT -Kthread"
  2805             pthread_lib=""
  2806             ;;
  2807         *-*-aix*)
  2808             pthread_cflags="-D_REENTRANT -mthreads"
  2809             pthread_lib="-lpthread"
  2810             ;;
  2811         *-*-hpux11*)
  2812             pthread_cflags="-D_REENTRANT"
  2813             pthread_lib="-L/usr/lib -lpthread"
  2814             ;;
  2815         *-*-haiku*)
  2816             pthread_cflags="-D_REENTRANT"
  2817             pthread_lib=""
  2818             ;;
  2819         *-*-nto*)
  2820             pthread_cflags="-D_REENTRANT"
  2821             pthread_lib=""
  2822             ;;
  2823         *)
  2824             pthread_cflags="-D_REENTRANT"
  2825             pthread_lib="-lpthread"
  2826             ;;
  2827     esac
  2828     if test x$enable_threads = xyes -a x$enable_pthreads = xyes; then
  2829         # Save the original compiler flags and libraries
  2830         ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2831         # Add the pthread compiler flags and libraries
  2832         CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2833         # Check to see if we have pthread support on this system
  2834         AC_MSG_CHECKING(for pthreads)
  2835         use_pthreads=no
  2836         AC_TRY_LINK([
  2837          #include <pthread.h>
  2838         ],[
  2839          pthread_attr_t type;
  2840          pthread_attr_init(&type);
  2841         ],[
  2842         use_pthreads=yes
  2843         ])
  2844         AC_MSG_RESULT($use_pthreads)
  2845         # Restore the compiler flags and libraries
  2846         CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2847 
  2848         # Do futher testing if we have pthread support...
  2849         if test x$use_pthreads = xyes; then
  2850             AC_DEFINE(SDL_THREAD_PTHREAD, 1, [ ])
  2851             EXTRA_CFLAGS="$EXTRA_CFLAGS $pthread_cflags"
  2852             EXTRA_LDFLAGS="$EXTRA_LDFLAGS $pthread_lib"
  2853             SDL_CFLAGS="$SDL_CFLAGS $pthread_cflags"
  2854 
  2855             # Save the original compiler flags and libraries
  2856             ac_save_cflags="$CFLAGS"; ac_save_libs="$LIBS"
  2857             # Add the pthread compiler flags and libraries
  2858             CFLAGS="$CFLAGS $pthread_cflags"; LIBS="$LIBS $pthread_lib"
  2859 
  2860             # Check to see if recursive mutexes are available
  2861             AC_MSG_CHECKING(for recursive mutexes)
  2862             has_recursive_mutexes=no
  2863             if test x$has_recursive_mutexes = xno; then
  2864                 AC_TRY_LINK([
  2865                   #define _GNU_SOURCE 1
  2866                   #include <pthread.h>
  2867                 ],[
  2868                   pthread_mutexattr_t attr;
  2869                   pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
  2870                 ],[
  2871                 has_recursive_mutexes=yes
  2872                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX, 1, [ ])
  2873                 ])
  2874             fi
  2875             if test x$has_recursive_mutexes = xno; then
  2876                 AC_TRY_LINK([
  2877                   #define _GNU_SOURCE 1
  2878                   #include <pthread.h>
  2879                 ],[
  2880                   pthread_mutexattr_t attr;
  2881                   pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
  2882                 ],[
  2883                 has_recursive_mutexes=yes
  2884                 AC_DEFINE(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP, 1, [ ])
  2885                 ])
  2886             fi
  2887             AC_MSG_RESULT($has_recursive_mutexes)
  2888 
  2889             # Check to see if pthread semaphore support is missing
  2890             if test x$enable_pthread_sem = xyes; then
  2891                 AC_MSG_CHECKING(for pthread semaphores)
  2892                 have_pthread_sem=no
  2893                 AC_TRY_COMPILE([
  2894                   #include <pthread.h>
  2895                   #include <semaphore.h>
  2896                 ],[
  2897                 ],[
  2898                 have_pthread_sem=yes
  2899                 ])
  2900                 AC_MSG_RESULT($have_pthread_sem)
  2901             fi
  2902             if test x$have_pthread_sem = xyes; then
  2903                 AC_MSG_CHECKING(for sem_timedwait)
  2904                 have_sem_timedwait=no
  2905                 AC_TRY_LINK([
  2906                   #include <pthread.h>
  2907                   #include <semaphore.h>
  2908                 ],[
  2909                   sem_timedwait(NULL, NULL);
  2910                 ],[
  2911                 have_sem_timedwait=yes
  2912                 AC_DEFINE([HAVE_SEM_TIMEDWAIT], 1, [ ])
  2913                 ])
  2914                 AC_MSG_RESULT($have_sem_timedwait)
  2915             fi
  2916 
  2917             AC_CHECK_HEADER(pthread_np.h, have_pthread_np_h=yes, have_pthread_np_h=no, [ #include <pthread.h> ])
  2918             if test x$have_pthread_np_h = xyes; then
  2919                 AC_DEFINE(HAVE_PTHREAD_NP_H, 1, [ ])
  2920             fi
  2921 
  2922             # Check to see if pthread naming is available
  2923             AC_MSG_CHECKING(for pthread_setname_np)
  2924             AC_TRY_LINK_FUNC(pthread_setname_np, [
  2925               has_pthread_setname_np=yes
  2926               AC_DEFINE(HAVE_PTHREAD_SETNAME_NP, 1, [ ])
  2927             ],[
  2928               has_pthread_setname_np=no
  2929             ])
  2930             AC_MSG_RESULT($has_pthread_setname_np)
  2931 
  2932             AC_MSG_CHECKING(for pthread_set_name_np)
  2933             AC_TRY_LINK_FUNC(pthread_set_name_np, [
  2934               has_pthread_set_name_np=yes
  2935               AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP, 1, [ ])
  2936             ],[
  2937               has_pthread_set_name_np=no
  2938             ])
  2939             AC_MSG_RESULT($has_pthread_set_name_np)
  2940 
  2941             # Restore the compiler flags and libraries
  2942             CFLAGS="$ac_save_cflags"; LIBS="$ac_save_libs"
  2943 
  2944             # Basic thread creation functions
  2945             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systhread.c"
  2946 
  2947             # Semaphores
  2948             # We can fake these with mutexes and condition variables if necessary
  2949             if test x$have_pthread_sem = xyes; then
  2950                 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syssem.c"
  2951             else
  2952                 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c"
  2953             fi
  2954 
  2955             # Mutexes
  2956             # We can fake these with semaphores if necessary
  2957             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_sysmutex.c"
  2958 
  2959             # Condition variables
  2960             # We can fake these with semaphores and mutexes if necessary
  2961             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c"
  2962 
  2963             # Thread local storage
  2964             SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_systls.c"
  2965 
  2966             have_threads=yes
  2967         fi
  2968     fi
  2969 }
  2970 
  2971 dnl Determine whether the compiler can produce Windows executables
  2972 CheckWINDOWS()
  2973 {
  2974     AC_MSG_CHECKING(Windows compiler)
  2975     have_win32_gcc=no
  2976     AC_TRY_COMPILE([
  2977      #include <windows.h>
  2978     ],[
  2979     ],[
  2980     have_win32_gcc=yes
  2981     ])
  2982     AC_MSG_RESULT($have_win32_gcc)
  2983     if test x$have_win32_gcc != xyes; then
  2984        AC_MSG_ERROR([
  2985 *** Your compiler ($CC) does not produce Windows executables!
  2986        ])
  2987     fi
  2988 
  2989     AC_MSG_CHECKING(Windows CE)
  2990     have_wince=no
  2991     AC_TRY_COMPILE([
  2992 #if !defined(_WIN32_WCE) && !defined(__MINGW32CE__)
  2993 #error This is not Windows CE
  2994 #endif
  2995     ],[
  2996     ],[
  2997     have_wince=yes
  2998        AC_MSG_ERROR([
  2999 *** Sorry, Windows CE is no longer supported.
  3000        ])
  3001     ])
  3002     AC_MSG_RESULT($have_wince)
  3003 
  3004     # This fixes Windows stack alignment with newer GCC
  3005     CheckStackBoundary
  3006 }
  3007 
  3008 dnl Find the DirectX includes and libraries
  3009 CheckDIRECTX()
  3010 {
  3011     AC_ARG_ENABLE(directx,
  3012 AC_HELP_STRING([--enable-directx], [use DirectX for Windows audio/video [[default=yes]]]),
  3013                   , enable_directx=yes)
  3014     if test x$enable_directx = xyes; then
  3015         AC_CHECK_HEADER(d3d9.h, have_d3d=yes)
  3016         AC_CHECK_HEADER(d3d11_1.h, have_d3d11=yes)
  3017         AC_CHECK_HEADER(ddraw.h, have_ddraw=yes)
  3018         AC_CHECK_HEADER(dsound.h, have_dsound=yes)
  3019         AC_CHECK_HEADER(dinput.h, have_dinput=yes)
  3020         AC_CHECK_HEADER(dxgi.h, have_dxgi=yes)
  3021         AC_CHECK_HEADER(xinput.h, have_xinput=yes)
  3022         AC_CHECK_HEADER(mmdeviceapi.h, have_wasapi=yes)
  3023         AC_CHECK_HEADER(audioclient.h,,have_wasapi=no)
  3024         AC_TRY_COMPILE([
  3025 #include <windows.h>
  3026 #include <xinput.h>
  3027 XINPUT_GAMEPAD_EX x1;
  3028         ],[],[have_xinput_gamepadex=yes])
  3029         AC_TRY_COMPILE([
  3030 #include <windows.h>
  3031 #include <xinput.h>
  3032 XINPUT_STATE_EX s1;
  3033         ],[],[have_xinput_stateex=yes])
  3034 
  3035         if test x$have_ddraw = xyes; then
  3036             AC_DEFINE(HAVE_DDRAW_H, 1, [ ])
  3037         fi
  3038         if test x$have_dinput = xyes; then
  3039             AC_DEFINE(HAVE_DINPUT_H, 1, [ ])
  3040         fi
  3041         if test x$have_dsound = xyes; then
  3042             AC_DEFINE(HAVE_DSOUND_H, 1, [ ])
  3043         fi
  3044         if test x$have_dxgi = xyes; then
  3045             AC_DEFINE(HAVE_DXGI_H, 1, [ ])
  3046         fi
  3047         if test x$have_xinput = xyes; then
  3048             AC_DEFINE(HAVE_XINPUT_H, 1, [ ])
  3049         fi
  3050         if test x$have_xinput_gamepadex = xyes; then
  3051             AC_DEFINE(HAVE_XINPUT_GAMEPAD_EX, 1, [ ])
  3052         fi
  3053         if test x$have_xinput_stateex = xyes; then
  3054             AC_DEFINE(HAVE_XINPUT_STATE_EX, 1, [ ])
  3055         fi
  3056 
  3057         SUMMARY_video="${SUMMARY_video} directx"
  3058         SUMMARY_audio="${SUMMARY_audio} directx"
  3059 
  3060         # FIXME: latest Cygwin finds dinput headers, but we die on other win32 headers.
  3061         # FIXME:  ...so force it off for now.
  3062         case "$host" in
  3063             *-*-cygwin*)
  3064             have_dinput=false
  3065             ;;
  3066         esac
  3067     fi
  3068 }
  3069 
  3070 dnl Check for the dlfcn.h interface for dynamically loading objects
  3071 CheckDLOPEN()
  3072 {
  3073     AC_ARG_ENABLE(sdl-dlopen,
  3074 AC_HELP_STRING([--enable-sdl-dlopen], [use dlopen for shared object loading [[default=yes]]]),
  3075                   , enable_sdl_dlopen=yes)
  3076     if test x$enable_sdl_dlopen = xyes; then
  3077         AC_MSG_CHECKING(for dlopen)
  3078         have_dlopen=no
  3079         AC_TRY_COMPILE([
  3080          #include <dlfcn.h>
  3081         ],[
  3082          void *handle = dlopen("", RTLD_NOW);
  3083          const char *loaderror = (char *) dlerror();
  3084         ],[
  3085         have_dlopen=yes
  3086         ])
  3087         AC_MSG_RESULT($have_dlopen)
  3088 
  3089         if test x$have_dlopen = xyes; then
  3090             AC_CHECK_LIB(c, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS",
  3091                AC_CHECK_LIB(dl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl",
  3092                   AC_CHECK_LIB(ltdl, dlopen, EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lltdl")))
  3093             AC_DEFINE(SDL_LOADSO_DLOPEN, 1, [ ])
  3094             SOURCES="$SOURCES $srcdir/src/loadso/dlopen/*.c"
  3095             have_loadso=yes
  3096         fi
  3097     fi
  3098 }
  3099 
  3100 dnl Check for the usbhid(3) library on *BSD
  3101 CheckUSBHID()
  3102 {
  3103     case "$host" in
  3104         *-*-*bsd*)
  3105             if test x$enable_joystick = xyes; then
  3106                 AC_CHECK_LIB(usbhid, hid_init, have_libusbhid=yes)
  3107                 if test x$have_libusbhid = xyes; then
  3108                     AC_CHECK_HEADER(usbhid.h, [USB_CFLAGS="-DHAVE_USBHID_H"])
  3109                     AC_CHECK_HEADER(libusbhid.h, [USB_CFLAGS="-DHAVE_LIBUSBHID_H"])
  3110                     USB_LIBS="$USB_LIBS -lusbhid"
  3111                 else
  3112                     AC_CHECK_HEADER(usb.h, [USB_CFLAGS="-DHAVE_USB_H"])
  3113                     AC_CHECK_HEADER(libusb.h, [USB_CFLAGS="-DHAVE_LIBUSB_H"])
  3114                     AC_CHECK_LIB(usb, hid_init, [USB_LIBS="$USB_LIBS -lusb"])
  3115                 fi
  3116                     
  3117                 save_CFLAGS="$CFLAGS"
  3118                 CFLAGS="$CFLAGS $USB_CFLAGS"
  3119 
  3120                 AC_MSG_CHECKING(for usbhid)
  3121                 have_usbhid=no
  3122                 AC_TRY_COMPILE([
  3123                   #include <sys/types.h>
  3124                   #if defined(HAVE_USB_H)
  3125                   #include <usb.h>
  3126                   #endif
  3127                   #ifdef __DragonFly__
  3128                   # include <bus/usb/usb.h>
  3129                   # include <bus/usb/usbhid.h>
  3130                   #else
  3131                   # include <dev/usb/usb.h>
  3132                   # include <dev/usb/usbhid.h>
  3133                   #endif
  3134                   #if defined(HAVE_USBHID_H)
  3135                   #include <usbhid.h>
  3136                   #elif defined(HAVE_LIBUSB_H)
  3137                   #include <libusb.h>
  3138                   #elif defined(HAVE_LIBUSBHID_H)
  3139                   #include <libusbhid.h>
  3140                   #endif
  3141                 ],[
  3142                   struct report_desc *repdesc;
  3143                   struct usb_ctl_report *repbuf;
  3144                   hid_kind_t hidkind;
  3145                 ],[
  3146                 have_usbhid=yes
  3147                 ])
  3148                 AC_MSG_RESULT($have_usbhid)
  3149 
  3150                 if test x$have_usbhid = xyes; then
  3151                     AC_MSG_CHECKING(for ucr_data member of usb_ctl_report)
  3152                     have_usbhid_ucr_data=no
  3153                     AC_TRY_COMPILE([
  3154                       #include <sys/types.h>
  3155                       #if defined(HAVE_USB_H)
  3156                       #include <usb.h>
  3157                       #endif
  3158                       #ifdef __DragonFly__
  3159                       # include <bus/usb/usb.h>
  3160                       # include <bus/usb/usbhid.h>
  3161                       #else
  3162                       # include <dev/usb/usb.h>
  3163                       # include <dev/usb/usbhid.h>
  3164                       #endif
  3165                       #if defined(HAVE_USBHID_H)
  3166                       #include <usbhid.h>
  3167                       #elif defined(HAVE_LIBUSB_H)
  3168                       #include <libusb.h>
  3169                       #elif defined(HAVE_LIBUSBHID_H)
  3170                       #include <libusbhid.h>
  3171                       #endif
  3172                     ],[
  3173                       struct usb_ctl_report buf;
  3174                       if (buf.ucr_data) { }
  3175                     ],[
  3176                     have_usbhid_ucr_data=yes
  3177                     ])
  3178                     if test x$have_usbhid_ucr_data = xyes; then
  3179                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_UCR_DATA"
  3180                     fi
  3181                     AC_MSG_RESULT($have_usbhid_ucr_data)
  3182                     
  3183                     AC_MSG_CHECKING(for new usbhid API)
  3184                     have_usbhid_new=no
  3185                     AC_TRY_COMPILE([
  3186                       #include <sys/types.h>
  3187                       #if defined(HAVE_USB_H)
  3188                       #include <usb.h>
  3189                       #endif
  3190                       #ifdef __DragonFly__
  3191                       #include <bus/usb/usb.h>
  3192                       #include <bus/usb/usbhid.h>
  3193                       #else
  3194                       #include <dev/usb/usb.h>
  3195                       #include <dev/usb/usbhid.h>
  3196                       #endif
  3197                       #if defined(HAVE_USBHID_H)
  3198                       #include <usbhid.h>
  3199                       #elif defined(HAVE_LIBUSB_H)
  3200                       #include <libusb.h>
  3201                       #elif defined(HAVE_LIBUSBHID_H)
  3202                       #include <libusbhid.h>
  3203                       #endif
  3204                     ],[
  3205                       report_desc_t d;
  3206                       hid_start_parse(d, 1, 1);
  3207                     ],[
  3208                     have_usbhid_new=yes
  3209                     ])
  3210                     if test x$have_usbhid_new = xyes; then
  3211                         USB_CFLAGS="$USB_CFLAGS -DUSBHID_NEW"
  3212                     fi
  3213                     AC_MSG_RESULT($have_usbhid_new)
  3214 
  3215                     AC_MSG_CHECKING(for struct joystick in machine/joystick.h)
  3216                     have_machine_joystick=no
  3217                     AC_TRY_COMPILE([
  3218                       #include <machine/joystick.h>
  3219                     ],[
  3220                       struct joystick t;
  3221                     ],[
  3222                     have_machine_joystick=yes
  3223                     ])
  3224                     if test x$have_machine_joystick = xyes; then
  3225                         AC_DEFINE(SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H, 1, [ ])
  3226                     fi
  3227                     AC_MSG_RESULT($have_machine_joystick)
  3228 
  3229                     AC_DEFINE(SDL_JOYSTICK_USBHID, 1, [ ])
  3230                     SOURCES="$SOURCES $srcdir/src/joystick/bsd/*.c"
  3231                     EXTRA_CFLAGS="$EXTRA_CFLAGS $USB_CFLAGS"
  3232                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS $USB_LIBS"
  3233                     have_joystick=yes
  3234                 fi
  3235                 CFLAGS="$save_CFLAGS"
  3236             fi
  3237         ;;
  3238     esac
  3239 }
  3240 
  3241 dnl Check for clock_gettime()
  3242 CheckClockGettime()
  3243 {
  3244     AC_ARG_ENABLE(clock_gettime,
  3245 AC_HELP_STRING([--enable-clock_gettime], [use clock_gettime() instead of gettimeofday() on UNIX [[default=yes]]]),
  3246                   , enable_clock_gettime=yes)
  3247     if test x$enable_clock_gettime = xyes; then
  3248         AC_CHECK_LIB(rt, clock_gettime, have_clock_gettime=yes)
  3249         if test x$have_clock_gettime = xyes; then
  3250             AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3251             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lrt"
  3252         else
  3253             AC_CHECK_LIB(c, clock_gettime, have_clock_gettime=yes)
  3254             if test x$have_clock_gettime = xyes; then
  3255                AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [ ])
  3256                EXTRA_LDFLAGS="$EXTRA_LDFLAGS"
  3257             fi
  3258         fi
  3259     fi
  3260 }
  3261 
  3262 dnl Check for a valid linux/version.h
  3263 CheckLinuxVersion()
  3264 {
  3265     AC_CHECK_HEADER(linux/version.h, have_linux_version_h=yes)
  3266     if test x$have_linux_version_h = xyes; then
  3267         EXTRA_CFLAGS="$EXTRA_CFLAGS -DHAVE_LINUX_VERSION_H"
  3268     fi
  3269 }
  3270 
  3271 dnl Check if we want to use RPATH
  3272 CheckRPATH()
  3273 {
  3274     AC_ARG_ENABLE(rpath,
  3275 AC_HELP_STRING([--enable-rpath], [use an rpath when linking SDL [[default=yes]]]),
  3276                   , enable_rpath=yes)
  3277 }
  3278 
  3279 dnl Do this on all platforms, before everything else (other things might want to override it).
  3280 CheckWarnAll
  3281 
  3282 dnl Set up the configuration based on the host platform!
  3283 case "$host" in
  3284     *-*-linux*|*-*-uclinux*|*-*-gnu*|*-*-k*bsd*-gnu|*-*-bsdi*|*-*-freebsd*|*-*-dragonfly*|*-*-netbsd*|*-*-openbsd*|*-*-sysv5*|*-*-solaris*|*-*-hpux*|*-*-aix*|*-*-minix*|*-*-nto*)
  3285         case "$host" in
  3286             *-*-android*)
  3287                 # Android
  3288                 ARCH=android
  3289                 ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
  3290                 CFLAGS="$CFLAGS $ANDROID_CFLAGS"
  3291                 SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
  3292                 EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
  3293                 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
  3294                 SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"
  3295 
  3296                 if test x$enable_video = xyes; then
  3297                     SOURCES="$SOURCES $srcdir/src/core/android/*.c $srcdir/src/video/android/*.c"
  3298                     # FIXME: confdefs? Not AC_DEFINE?
  3299                     $as_echo "#define SDL_VIDEO_DRIVER_ANDROID 1" >>confdefs.h
  3300                     SUMMARY_video="${SUMMARY_video} android"
  3301                 fi
  3302                 ;;
  3303             *-*-linux*)         ARCH=linux ;;
  3304             *-*-uclinux*)       ARCH=linux ;;
  3305             *-*-kfreebsd*-gnu)  ARCH=kfreebsd-gnu ;;
  3306             *-*-knetbsd*-gnu)   ARCH=knetbsd-gnu ;;
  3307             *-*-kopenbsd*-gnu)  ARCH=kopenbsd-gnu ;;
  3308             *-*-gnu*)           ARCH=gnu ;; # must be last of the gnu variants
  3309             *-*-bsdi*)          ARCH=bsdi ;;
  3310             *-*-freebsd*)       ARCH=freebsd ;;
  3311             *-*-dragonfly*)     ARCH=freebsd ;;
  3312             *-*-netbsd*)        ARCH=netbsd ;;
  3313             *-*-openbsd*)       ARCH=openbsd ;;
  3314             *-*-sysv5*)         ARCH=sysv5 ;;
  3315             *-*-solaris*)       ARCH=solaris ;;
  3316             *-*-hpux*)          ARCH=hpux ;;
  3317             *-*-aix*)           ARCH=aix ;;
  3318             *-*-minix*)         ARCH=minix ;;
  3319             *-*-nto*)           ARCH=nto
  3320                 CheckQNXVideo
  3321                 ;;
  3322         esac
  3323         CheckVisibilityHidden
  3324         CheckDeclarationAfterStatement
  3325         CheckDummyVideo
  3326         CheckDiskAudio
  3327         CheckDummyAudio
  3328         CheckDLOPEN
  3329         CheckOSS
  3330         CheckALSA
  3331         CheckPulseAudio
  3332         CheckJACK
  3333         CheckARTSC
  3334         CheckESD
  3335         CheckNAS
  3336         CheckSNDIO
  3337         CheckFusionSound
  3338         CheckLibSampleRate
  3339         # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  3340         CheckRPI
  3341         CheckX11
  3342         CheckDirectFB
  3343         CheckKMSDRM
  3344         CheckOpenGLX11
  3345         CheckOpenGLESX11
  3346         CheckVulkan
  3347         CheckMir
  3348         CheckWayland
  3349         CheckLibUDev
  3350         CheckDBus
  3351         CheckIME
  3352         CheckIBus
  3353         CheckFcitx
  3354         case $ARCH in
  3355           linux)
  3356               CheckInputEvents
  3357               CheckInputKD
  3358           ;;
  3359         esac
  3360         CheckTslib
  3361         CheckUSBHID
  3362         CheckPTHREAD
  3363         CheckClockGettime
  3364         CheckLinuxVersion
  3365         CheckRPATH
  3366         CheckVivanteVideo
  3367 
  3368         # Set up files for the audio library
  3369         if test x$enable_audio = xyes; then
  3370           case $ARCH in
  3371             sysv5|solaris|hpux)
  3372                 AC_DEFINE(SDL_AUDIO_DRIVER_SUNAUDIO, 1, [ ])
  3373                 SOURCES="$SOURCES $srcdir/src/audio/sun/*.c"
  3374                 SUMMARY_audio="${SUMMARY_audio} sun"
  3375                 have_audio=yes
  3376             ;;
  3377             netbsd)  # Don't use this on OpenBSD, it's busted.
  3378                 AC_DEFINE(SDL_AUDIO_DRIVER_NETBSD, 1, [ ])
  3379                 SOURCES="$SOURCES $srcdir/src/audio/netbsd/*.c"
  3380                 SUMMARY_audio="${SUMMARY_audio} netbsd"
  3381                 have_audio=yes
  3382             ;;
  3383             aix)
  3384                 AC_DEFINE(SDL_AUDIO_DRIVER_PAUDIO, 1, [ ])
  3385                 SOURCES="$SOURCES $srcdir/src/audio/paudio/*.c"
  3386                 SUMMARY_audio="${SUMMARY_audio} paudio"
  3387                 have_audio=yes
  3388             ;;
  3389             android)
  3390                 AC_DEFINE(SDL_AUDIO_DRIVER_ANDROID, 1, [ ])
  3391                 SOURCES="$SOURCES $srcdir/src/audio/android/*.c"
  3392                 SUMMARY_audio="${SUMMARY_audio} android"
  3393                 have_audio=yes
  3394             ;;
  3395             nto)
  3396                 CheckQNXAudio
  3397             ;;
  3398           esac
  3399         fi
  3400         # Set up files for the joystick library
  3401         if test x$enable_joystick = xyes; then
  3402           case $ARCH in
  3403             linux)
  3404                 AC_DEFINE(SDL_JOYSTICK_LINUX, 1, [ ])
  3405                 SOURCES="$SOURCES $srcdir/src/joystick/linux/*.c"
  3406                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3407                 have_joystick=yes
  3408             ;;
  3409             android)
  3410                 AC_DEFINE(SDL_JOYSTICK_ANDROID, 1, [ ])
  3411                 SOURCES="$SOURCES $srcdir/src/joystick/android/*.c"
  3412                 SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3413                 have_joystick=yes
  3414             ;;
  3415           esac
  3416         fi
  3417         # Set up files for the haptic library
  3418         if test x$enable_haptic = xyes; then
  3419           case $ARCH in
  3420             linux)
  3421                 if test x$use_input_events = xyes; then
  3422                     AC_DEFINE(SDL_HAPTIC_LINUX, 1, [ ])
  3423                     SOURCES="$SOURCES $srcdir/src/haptic/linux/*.c"
  3424                     have_haptic=yes
  3425                 fi
  3426             ;;
  3427             android)
  3428                 AC_DEFINE(SDL_HAPTIC_ANDROID, 1, [ ])
  3429                 SOURCES="$SOURCES $srcdir/src/haptic/android/*.c"
  3430                 have_haptic=yes
  3431             ;;
  3432           esac
  3433         fi
  3434         # Set up files for the power library
  3435         if test x$enable_power = xyes; then
  3436              case $ARCH in
  3437                linux)
  3438                    AC_DEFINE(SDL_POWER_LINUX, 1, [ ])
  3439                    SOURCES="$SOURCES $srcdir/src/power/linux/*.c"
  3440                    have_power=yes
  3441                ;;
  3442                android)
  3443                    AC_DEFINE(SDL_POWER_ANDROID, 1, [ ])
  3444                    SOURCES="$SOURCES $srcdir/src/power/android/*.c"
  3445                    have_power=yes
  3446                ;;
  3447              esac
  3448         fi
  3449         # Set up files for the filesystem library
  3450         if test x$enable_filesystem = xyes; then
  3451              case $ARCH in
  3452                android)
  3453                    AC_DEFINE(SDL_FILESYSTEM_ANDROID, 1, [ ])
  3454                    SOURCES="$SOURCES $srcdir/src/filesystem/android/*.c"
  3455                    have_filesystem=yes
  3456                ;;
  3457                *)
  3458                    AC_DEFINE(SDL_FILESYSTEM_UNIX, 1, [ ])
  3459                    SOURCES="$SOURCES $srcdir/src/filesystem/unix/*.c"
  3460                    have_filesystem=yes
  3461                ;;
  3462              esac
  3463         fi
  3464         # Set up files for the timer library
  3465         if test x$enable_timers = xyes; then
  3466             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3467             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3468             have_timers=yes
  3469         fi
  3470         # Set up files for udev hotplugging support
  3471         if test x$enable_libudev = xyes && test x$have_libudev_h_hdr = xyes; then
  3472             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_udev.c"               
  3473         fi
  3474         # Set up files for evdev input
  3475         if test x$use_input_events = xyes; then
  3476             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev*.c"
  3477         fi       
  3478         # Set up other core UNIX files
  3479         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3480         ;;
  3481     *-*-cygwin* | *-*-mingw32*)
  3482         ARCH=win32
  3483         if test "$build" != "$host"; then # cross-compiling
  3484             # Default cross-compile location
  3485             ac_default_prefix=/usr/local/cross-tools/$host
  3486         else
  3487             # Look for the location of the tools and install there
  3488             if test "$BUILD_PREFIX" != ""; then
  3489                 ac_default_prefix=$BUILD_PREFIX
  3490             fi
  3491         fi
  3492         CheckDeclarationAfterStatement
  3493         CheckDummyVideo
  3494         CheckDiskAudio
  3495         CheckDummyAudio
  3496         CheckWINDOWS
  3497         CheckWINDOWSGL
  3498         CheckWINDOWSGLES
  3499         CheckVulkan
  3500         CheckDIRECTX
  3501 
  3502         # Set up the core platform files
  3503         SOURCES="$SOURCES $srcdir/src/core/windows/*.c"
  3504 
  3505         # Set up files for the video library
  3506         if test x$enable_video = xyes; then
  3507             AC_DEFINE(SDL_VIDEO_DRIVER_WINDOWS, 1, [ ])
  3508             SOURCES="$SOURCES $srcdir/src/video/windows/*.c"
  3509             have_video=yes
  3510             AC_ARG_ENABLE(render-d3d,
  3511 AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[default=yes]]]),
  3512                                 , enable_render_d3d=yes)
  3513             if test x$enable_render_d3d = xyes -a x$have_d3d = xyes; then
  3514                 AC_DEFINE(SDL_VIDEO_RENDER_D3D, 1, [ ])
  3515             fi
  3516             if test x$enable_render_d3d = xyes -a x$have_d3d11 = xyes; then
  3517                 AC_DEFINE(SDL_VIDEO_RENDER_D3D11, 1, [ ])
  3518             fi
  3519         fi
  3520         # Set up files for the audio library
  3521         if test x$enable_audio = xyes; then
  3522             AC_DEFINE(SDL_AUDIO_DRIVER_WINMM, 1, [ ])
  3523             SOURCES="$SOURCES $srcdir/src/audio/winmm/*.c"
  3524             if test x$have_dsound = xyes; then
  3525                 AC_DEFINE(SDL_AUDIO_DRIVER_DSOUND, 1, [ ])
  3526                 SOURCES="$SOURCES $srcdir/src/audio/directsound/*.c"
  3527             fi
  3528             if test x$have_wasapi = xyes; then
  3529                 AC_DEFINE(SDL_AUDIO_DRIVER_WASAPI, 1, [ ])
  3530                 SOURCES="$SOURCES $srcdir/src/audio/wasapi/*.c"
  3531             fi
  3532             have_audio=yes
  3533         fi
  3534         # Set up files for the joystick library
  3535         if test x$enable_joystick = xyes; then
  3536             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3537                 if test x$have_xinput = xyes; then
  3538                     AC_DEFINE(SDL_JOYSTICK_XINPUT, 1, [ ])
  3539                 fi
  3540                 if test x$have_dinput = xyes; then
  3541                     AC_DEFINE(SDL_JOYSTICK_DINPUT, 1, [ ])
  3542                     EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldinput8 -ldxguid -ldxerr8"
  3543                 fi
  3544             else
  3545                 AC_DEFINE(SDL_JOYSTICK_WINMM, 1, [ ])
  3546             fi
  3547             SOURCES="$SOURCES $srcdir/src/joystick/windows/*.c"
  3548             have_joystick=yes
  3549         fi
  3550         if test x$enable_haptic = xyes; then
  3551             if test x$have_dinput = xyes -o x$have_xinput = xyes; then
  3552                 if test x$have_xinput = xyes; then
  3553                     AC_DEFINE(SDL_HAPTIC_XINPUT, 1, [ ])
  3554                 fi
  3555                 if test x$have_dinput = xyes; then
  3556                     AC_DEFINE(SDL_HAPTIC_DINPUT, 1, [ ])
  3557                 fi
  3558                 SOURCES="$SOURCES $srcdir/src/haptic/windows/*.c"
  3559                 have_haptic=yes
  3560             fi
  3561         fi
  3562         if test x$enable_power = xyes; then
  3563             AC_DEFINE(SDL_POWER_WINDOWS, 1, [ ])
  3564             SOURCES="$SOURCES $srcdir/src/power/windows/SDL_syspower.c"
  3565             have_power=yes
  3566         fi
  3567         if test x$enable_filesystem = xyes; then
  3568             AC_DEFINE(SDL_FILESYSTEM_WINDOWS, 1, [ ])
  3569             SOURCES="$SOURCES $srcdir/src/filesystem/windows/SDL_sysfilesystem.c"
  3570             have_filesystem=yes
  3571         fi
  3572         # Set up files for the thread library
  3573         if test x$enable_threads = xyes; then
  3574             AC_DEFINE(SDL_THREAD_WINDOWS, 1, [ ])
  3575             SOURCES="$SOURCES $srcdir/src/thread/windows/*.c"
  3576             SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syscond.c"
  3577             have_threads=yes
  3578         fi
  3579         # Set up files for the timer library
  3580         if test x$enable_timers = xyes; then
  3581             AC_DEFINE(SDL_TIMER_WINDOWS, 1, [ ])
  3582             SOURCES="$SOURCES $srcdir/src/timer/windows/*.c"
  3583             have_timers=yes
  3584         fi
  3585         # Set up files for the shared object loading library
  3586         if test x$enable_loadso = xyes; then
  3587             AC_DEFINE(SDL_LOADSO_WINDOWS, 1, [ ])
  3588             SOURCES="$SOURCES $srcdir/src/loadso/windows/*.c"
  3589             have_loadso=yes
  3590         fi
  3591         # Set up the system libraries we need
  3592         if test -f /lib/w32api/libuuid.a; then
  3593             LIBUUID=/lib/w32api/libuuid.a
  3594         else
  3595             LIBUUID=-luuid
  3596         fi
  3597         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lversion $LIBUUID -static-libgcc"
  3598         # The Windows platform requires special setup
  3599         VERSION_SOURCES="$srcdir/src/main/windows/*.rc"
  3600         SDLMAIN_SOURCES="$srcdir/src/main/windows/*.c"
  3601         SDL_CFLAGS="$SDL_CFLAGS -Dmain=SDL_main"
  3602         SDL_LIBS="-lSDL2main $SDL_LIBS -mwindows"
  3603 
  3604         # Check to see if this is a mingw or cygwin build
  3605         have_mingw32=
  3606         AC_CHECK_LIB(mingw32, main, [have_mingw32=yes])
  3607         if test x$have_mingw32 = xyes; then
  3608             SDL_LIBS="-lmingw32 $SDL_LIBS"
  3609         else
  3610             SDL_LIBS="-lcygwin $SDL_LIBS"
  3611         fi
  3612         ;;
  3613 
  3614     dnl BeOS support removed after SDL 2.0.1. Haiku still works.  --ryan.
  3615     *-*-beos*)
  3616         AC_MSG_ERROR([
  3617 *** BeOS support has been removed as of SDL 2.0.2.
  3618         ])
  3619         ;;
  3620 
  3621     *-*-haiku*)
  3622         ARCH=haiku
  3623         ac_default_prefix=/boot/system
  3624         CheckDummyVideo
  3625         CheckDiskAudio
  3626         CheckDummyAudio
  3627         CheckDLOPEN
  3628         CheckHaikuVideo
  3629         CheckHaikuGL
  3630         CheckPTHREAD
  3631 
  3632         # Set up files for the audio library
  3633         if test x$enable_audio = xyes; then
  3634             AC_DEFINE(SDL_AUDIO_DRIVER_HAIKU, 1, [ ])
  3635             SOURCES="$SOURCES $srcdir/src/audio/haiku/*.cc"
  3636             SUMMARY_audio="${SUMMARY_audio} haiku"
  3637             have_audio=yes
  3638         fi
  3639         # Set up files for the joystick library
  3640         if test x$enable_joystick = xyes; then
  3641             AC_DEFINE(SDL_JOYSTICK_HAIKU, 1, [ ])
  3642             SOURCES="$SOURCES $srcdir/src/joystick/haiku/*.cc"
  3643             have_joystick=yes
  3644         fi
  3645         # Set up files for the timer library
  3646         if test x$enable_timers = xyes; then
  3647             AC_DEFINE(SDL_TIMER_HAIKU, 1, [ ])
  3648             SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
  3649             have_timers=yes
  3650         fi
  3651         # Set up files for the system power library
  3652         if test x$enable_power = xyes; then
  3653             AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])
  3654             SOURCES="$SOURCES $srcdir/src/power/haiku/*.c"
  3655             have_power=yes
  3656         fi
  3657         # Set up files for the system filesystem library
  3658         if test x$enable_filesystem = xyes; then
  3659             AC_DEFINE(SDL_FILESYSTEM_HAIKU, 1, [ ])
  3660             SOURCES="$SOURCES $srcdir/src/filesystem/haiku/*.cc"
  3661             have_filesystem=yes
  3662         fi
  3663         # The Haiku platform requires special setup.
  3664         SOURCES="$srcdir/src/main/haiku/*.cc $SOURCES"
  3665         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lroot -lbe -lmedia -lgame -ldevice -ltextencoding"
  3666         # Haiku's x86 spins use libstdc++.r4.so (for binary compat?), but
  3667         #  other spins, like x86-64, use a more standard "libstdc++.so.*"
  3668         AC_CHECK_FILE("/boot/system/lib/libstdc++.r4.so", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++.r4", EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lstdc++")
  3669         ;;
  3670     arm*-apple-darwin*|*-ios-*)
  3671         ARCH=ios
  3672 
  3673         CheckVisibilityHidden
  3674         CheckDeclarationAfterStatement
  3675         CheckDummyVideo
  3676         CheckDiskAudio
  3677         CheckDummyAudio
  3678         CheckDLOPEN
  3679         CheckMETAL
  3680         CheckVulkan
  3681         CheckPTHREAD
  3682 
  3683         # Set up files for the audio library
  3684         if test x$enable_audio = xyes; then
  3685             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3686             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3687             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3688             have_audio=yes
  3689         fi
  3690         # Set up files for the joystick library
  3691         if test x$enable_joystick = xyes; then
  3692             AC_DEFINE(SDL_JOYSTICK_MFI, 1, [ ])
  3693             SOURCES="$SOURCES $srcdir/src/joystick/iphoneos/*.m"
  3694             SOURCES="$SOURCES $srcdir/src/joystick/steam/*.c"
  3695             have_joystick=yes
  3696         fi
  3697         # Set up files for the haptic library
  3698         #if test x$enable_haptic = xyes; then
  3699         #    SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3700         #    have_haptic=yes
  3701         #    EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3702         #fi
  3703         # Set up files for the power library
  3704         if test x$enable_power = xyes; then
  3705             AC_DEFINE(SDL_POWER_UIKIT, 1, [ ])
  3706             SOURCES="$SOURCES $srcdir/src/power/uikit/*.m"
  3707             have_power=yes
  3708         fi
  3709         # Set up files for the filesystem library
  3710         if test x$enable_filesystem = xyes; then
  3711             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3712             have_filesystem=yes
  3713         fi
  3714         # Set up additional files for the file library
  3715         if test x$enable_file = xyes; then
  3716             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3717             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3718         fi
  3719         # Set up files for the timer library
  3720         if test x$enable_timers = xyes; then
  3721             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3722             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3723             have_timers=yes
  3724         fi
  3725         # Set up other core UNIX files
  3726         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3727         # The iOS platform requires special setup.
  3728         AC_DEFINE(SDL_VIDEO_DRIVER_UIKIT, 1, [ ])
  3729         AC_DEFINE(SDL_VIDEO_OPENGL_ES2, 1, [ ])
  3730         AC_DEFINE(SDL_VIDEO_OPENGL_ES, 1, [ ])
  3731         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES, 1, [ ])
  3732         AC_DEFINE(SDL_VIDEO_RENDER_OGL_ES2, 1, [ ])
  3733         SOURCES="$SOURCES $srcdir/src/video/uikit/*.m"
  3734         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm -liconv -lobjc"
  3735         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AVFoundation"
  3736         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,AudioToolbox"
  3737         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio"
  3738         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreGraphics"
  3739         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreMotion"
  3740         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Foundation"
  3741         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,GameController"
  3742         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,OpenGLES"
  3743         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,QuartzCore"
  3744         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,UIKit"
  3745 
  3746         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3747             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Metal"
  3748         fi
  3749         ;;
  3750     *-*-darwin* )
  3751         # This could be either full "Mac OS X", or plain "Darwin" which is
  3752         # just the OS X kernel sans upper layers like Carbon and Cocoa.
  3753         # Next line is broken, and a few files below require Mac OS X (full)
  3754         ARCH=macosx
  3755 
  3756         # Mac OS X builds with both the Carbon and OSX APIs at the moment
  3757         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_CARBON"
  3758         EXTRA_CFLAGS="$EXTRA_CFLAGS -DTARGET_API_MAC_OSX"
  3759 
  3760         CheckVisibilityHidden
  3761         CheckDeclarationAfterStatement
  3762         CheckDummyVideo
  3763         CheckDiskAudio
  3764         CheckDummyAudio
  3765         CheckDLOPEN
  3766         CheckCOCOA
  3767         CheckMETAL
  3768         CheckX11
  3769         CheckMacGL
  3770         CheckOpenGLX11
  3771         CheckVulkan
  3772         CheckPTHREAD
  3773 
  3774         # Set up files for the audio library
  3775         if test x$enable_audio = xyes; then
  3776             AC_DEFINE(SDL_AUDIO_DRIVER_COREAUDIO, 1, [ ])
  3777             SOURCES="$SOURCES $srcdir/src/audio/coreaudio/*.m"
  3778             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox"
  3779             SUMMARY_audio="${SUMMARY_audio} coreaudio"
  3780             have_audio=yes
  3781         fi
  3782         # Set up files for the joystick library
  3783         if test x$enable_joystick = xyes; then
  3784             AC_DEFINE(SDL_JOYSTICK_IOKIT, 1, [ ])
  3785             SOURCES="$SOURCES $srcdir/src/joystick/darwin/*.c"
  3786             have_joystick=yes
  3787         fi
  3788         # Set up files for the haptic library
  3789         if test x$enable_haptic = xyes; then
  3790             AC_DEFINE(SDL_HAPTIC_IOKIT, 1, [ ])
  3791             SOURCES="$SOURCES $srcdir/src/haptic/darwin/*.c"
  3792             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,ForceFeedback"
  3793             have_haptic=yes
  3794         fi
  3795         # Set up files for the power library
  3796         if test x$enable_power = xyes; then
  3797             AC_DEFINE(SDL_POWER_MACOSX, 1, [ ])
  3798             SOURCES="$SOURCES $srcdir/src/power/macosx/*.c"
  3799             have_power=yes
  3800         fi
  3801         # Set up files for the filesystem library
  3802         if test x$enable_filesystem = xyes; then
  3803             AC_DEFINE(SDL_FILESYSTEM_COCOA, 1, [ ])
  3804             SOURCES="$SOURCES $srcdir/src/filesystem/cocoa/*.m"
  3805             have_filesystem=yes
  3806         fi
  3807         # Set up files for the timer library
  3808         if test x$enable_timers = xyes; then
  3809             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3810             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3811             have_timers=yes
  3812         fi
  3813         # Set up additional files for the file library
  3814         if test x$enable_file = xyes; then
  3815             SOURCES="$SOURCES $srcdir/src/file/cocoa/*.m"
  3816         fi
  3817         # Set up other core UNIX files
  3818         SOURCES="$SOURCES $srcdir/src/core/unix/*.c"
  3819         # The Mac OS X platform requires special setup.
  3820         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lobjc"
  3821         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,CoreVideo"
  3822         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Cocoa"
  3823         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,Carbon"
  3824         EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-framework,IOKit"
  3825 
  3826         if test x$enable_render = xyes -a x$enable_render_metal = xyes; then
  3827             EXTRA_LDFLAGS="$EXTRA_LDFLAGS -Wl,-weak_framework,QuartzCore -Wl,-weak_framework,Metal"
  3828         fi
  3829         ;;
  3830     *-nacl|*-pnacl)
  3831         ARCH=nacl
  3832         CheckNativeClient
  3833         CheckDummyAudio
  3834         CheckDummyVideo
  3835         CheckInputEvents
  3836         CheckPTHREAD
  3837         
  3838         # Set up files for the timer library
  3839         if test x$enable_timers = xyes; then
  3840             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3841             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3842             have_timers=yes
  3843         fi
  3844         
  3845         if test x$enable_filesystem = xyes; then
  3846             AC_DEFINE(SDL_FILESYSTEM_NACL, 1, [ ])
  3847             SOURCES="$SOURCES $srcdir/src/filesystem/nacl/*.c"
  3848             have_filesystem=yes
  3849         fi
  3850         ;;
  3851     *-*-emscripten* )
  3852         if test x$enable_video = xyes; then
  3853             AC_DEFINE(SDL_VIDEO_DRIVER_EMSCRIPTEN, 1, [ ])
  3854             SOURCES="$SOURCES $srcdir/src/video/emscripten/*.c"
  3855             have_video=yes
  3856             SUMMARY_video="${SUMMARY_video} emscripten"
  3857         fi
  3858 
  3859         if test x$enable_audio = xyes; then
  3860             AC_DEFINE(SDL_AUDIO_DRIVER_EMSCRIPTEN, 1, [ ])
  3861             SOURCES="$SOURCES $srcdir/src/audio/emscripten/*.c"
  3862             have_audio=yes
  3863             SUMMARY_audio="${SUMMARY_audio} emscripten"
  3864         fi
  3865 
  3866         CheckVisibilityHidden
  3867         CheckDeclarationAfterStatement
  3868         CheckDummyVideo
  3869         CheckDiskAudio
  3870         CheckDummyAudio
  3871         CheckDLOPEN
  3872         CheckClockGettime
  3873         CheckEmscriptenGLES
  3874 
  3875          # Set up files for the power library
  3876         if test x$enable_power = xyes; then
  3877             AC_DEFINE(SDL_POWER_EMSCRIPTEN, 1, [ ])
  3878             SOURCES="$SOURCES $srcdir/src/power/emscripten/*.c"
  3879             have_power=yes
  3880         fi
  3881         
  3882         # Set up files for the power library
  3883         if test x$enable_joystick = xyes; then
  3884             AC_DEFINE(SDL_JOYSTICK_EMSCRIPTEN, 1, [ ])
  3885             SOURCES="$SOURCES $srcdir/src/joystick/emscripten/*.c"
  3886             have_joystick=yes
  3887         fi
  3888 
  3889         # Set up files for the filesystem library
  3890         if test x$enable_filesystem = xyes; then
  3891             AC_DEFINE(SDL_FILESYSTEM_EMSCRIPTEN, 1, [ ])
  3892             SOURCES="$SOURCES $srcdir/src/filesystem/emscripten/*.c"
  3893             have_filesystem=yes
  3894         fi
  3895         # Set up files for the timer library
  3896         if test x$enable_timers = xyes; then
  3897             AC_DEFINE(SDL_TIMER_UNIX, 1, [ ])
  3898             SOURCES="$SOURCES $srcdir/src/timer/unix/*.c"
  3899             have_timers=yes
  3900         fi
  3901         ;;
  3902     *)
  3903         AC_MSG_ERROR([
  3904 *** Unsupported host:  Please add to configure.in
  3905         ])
  3906         ;;
  3907 esac
  3908 
  3909 # Verify that we have all the platform specific files we need
  3910 
  3911 if test x$have_joystick != xyes; then
  3912     if test x$enable_joystick = xyes; then
  3913         AC_DEFINE(SDL_JOYSTICK_DISABLED, 1, [ ])
  3914     fi
  3915     SOURCES="$SOURCES $srcdir/src/joystick/dummy/*.c"
  3916 fi
  3917 if test x$have_haptic != xyes; then
  3918     if test x$enable_haptic = xyes; then
  3919         AC_DEFINE(SDL_HAPTIC_DISABLED, 1, [ ])
  3920     fi
  3921     SOURCES="$SOURCES $srcdir/src/haptic/dummy/*.c"
  3922 fi
  3923 if test x$have_threads != xyes; then
  3924     if test x$enable_threads = xyes; then
  3925         AC_DEFINE(SDL_THREADS_DISABLED, 1, [ ])
  3926     fi
  3927     SOURCES="$SOURCES $srcdir/src/thread/generic/*.c"
  3928 fi
  3929 if test x$have_timers != xyes; then
  3930     if test x$enable_timers = xyes; then
  3931         AC_DEFINE(SDL_TIMERS_DISABLED, 1, [ ])
  3932     fi
  3933     SOURCES="$SOURCES $srcdir/src/timer/dummy/*.c"
  3934 fi
  3935 if test x$have_filesystem != xyes; then
  3936     if test x$enable_filesystem = xyes; then
  3937         AC_DEFINE(SDL_FILESYSTEM_DISABLED, 1, [ ])
  3938     fi
  3939     SOURCES="$SOURCES $srcdir/src/filesystem/dummy/*.c"
  3940 fi
  3941 if test x$have_loadso != xyes; then
  3942     if test x$enable_loadso = xyes; then
  3943         AC_DEFINE(SDL_LOADSO_DISABLED, 1, [ ])
  3944     fi
  3945     SOURCES="$SOURCES $srcdir/src/loadso/dummy/*.c"
  3946 fi
  3947 if test x$SDLMAIN_SOURCES = x; then
  3948     SDLMAIN_SOURCES="$srcdir/src/main/dummy/*.c"
  3949 fi
  3950 SDLTEST_SOURCES="$srcdir/src/test/*.c"
  3951 
  3952 if test x$video_wayland = xyes; then
  3953     WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
  3954     WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
  3955     WAYLAND_PROTOCOLS_UNSTABLE_SOURCES=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3956         sed 's,[[^ ]]\+,\\$(gen)/&-protocol.c,g'`
  3957     WAYLAND_PROTOCOLS_UNSTABLE_HEADERS=`echo $WAYLAND_PROTOCOLS_UNSTABLE |\
  3958         sed 's,[[^ ]]\+,\\$(gen)/&-client-protocol.h,g'`
  3959     GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE $WAYLAND_PROTOCOLS_UNSTABLE_SOURCES"
  3960     GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER $WAYLAND_PROTOCOLS_UNSTABLE_HEADERS"
  3961 
  3962     WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
  3963 $WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3964 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3965 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
  3966 
  3967     WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
  3968 $WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
  3969 	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
  3970 	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
  3971 
  3972     WAYLAND_CORE_PROTOCOL_OBJECT="
  3973 \$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
  3974 	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
  3975 
  3976     WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3977         do echo ; echo \$p | sed\
  3978         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-client-protocol.h: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3979 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3980 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) client-header \\$< \\$@," ; done`
  3981 
  3982     WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3983         do echo ; echo \$p | sed\
  3984         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\$(gen)/&-protocol.c: $WAYLAND_PROTOCOLS_DIR/unstable/\1/&.xml\\\\
  3985 	\\$(SHELL) \\$(auxdir)/mkinstalldirs \\$(gen)\\\\
  3986 	\\$(RUN_CMD_GEN)\\$(WAYLAND_SCANNER) code \\$< \\$@," ; done`
  3987 
  3988     WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE=`for p in $WAYLAND_PROTOCOLS_UNSTABLE;\
  3989         do echo ; echo \$p | sed\
  3990         "s,^\\([[a-z\\-]]\\+\\)-unstable-\\(v[[0-9]]\+\\)\$,\\\$(objects)/&-protocol.lo: \\$(gen)/&-protocol.c \\$(gen)/&-client-protocol.h\\\\
  3991 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@," ; done`
  3992 
  3993     WAYLAND_PROTOCOLS_DEPENDS="
  3994 $WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
  3995 $WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
  3996 $WAYLAND_CORE_PROTOCOL_OBJECT
  3997 $WAYLAND_PROTOCOLS_CLIENT_HEADER_UNSTABLE_DEPENDS
  3998 $WAYLAND_PROTOCOLS_CODE_UNSTABLE_DEPENDS
  3999 $WAYLAND_PROTOCOLS_OBJECTS_UNSTABLE
  4000 "
  4001 fi
  4002 
  4003 OBJECTS=`echo $SOURCES`
  4004 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
  4005 for EXT in asm cc m c S; do
  4006     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
  4007     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
  4008 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
  4009 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4010 done
  4011 
  4012 GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4013 
  4014 VERSION_OBJECTS=`echo $VERSION_SOURCES`
  4015 VERSION_DEPENDS=`echo $VERSION_SOURCES`
  4016 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
  4017 VERSION_DEPENDS=`echo "$VERSION_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.rc,\\\\
  4018 \\$(objects)/\\2.o: \\1/\\2.rc\\\\
  4019 	\\$(WINDRES) \\$< \\$@,g"`
  4020 
  4021 SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
  4022 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
  4023 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4024 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4025 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4026 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4027 
  4028 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
  4029 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
  4030 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
  4031 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
  4032 \\$(objects)/\\2.lo: \\1/\\2.c\\\\
  4033 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
  4034 
  4035 # Set runtime shared library paths as needed
  4036 
  4037 if test "x$enable_rpath" = "xyes"; then
  4038   if test $ARCH = bsdi -o $ARCH = freebsd -o $ARCH = linux -o $ARCH = netbsd; then
  4039     SDL_RLD_FLAGS="-Wl,-rpath,\${libdir}"
  4040 
  4041     AC_MSG_CHECKING(for linker option --enable-new-dtags)
  4042     have_enable_new_dtags=no
  4043     save_LDFLAGS="$LDFLAGS"
  4044     LDFLAGS="$LDFLAGS -Wl,--enable-new-dtags"
  4045     AC_TRY_LINK([
  4046     ],[
  4047     ],[
  4048     have_enable_new_dtags=yes
  4049     SDL_RLD_FLAGS="$SDL_RLD_FLAGS -Wl,--enable-new-dtags"
  4050     ])
  4051     LDFLAGS="$save_LDFLAGS"
  4052     AC_MSG_RESULT($have_enable_new_dtags)
  4053   fi
  4054   if test $ARCH = solaris; then
  4055     SDL_RLD_FLAGS="-R\${libdir}"
  4056   fi
  4057 else
  4058   SDL_RLD_FLAGS=""
  4059 fi
  4060 
  4061 SDL_STATIC_LIBS="$SDL_LIBS $EXTRA_LDFLAGS"
  4062 
  4063 dnl Expand the cflags and libraries needed by apps using SDL
  4064 AC_SUBST(SDL_CFLAGS)
  4065 AC_SUBST(SDL_LIBS)
  4066 AC_SUBST(SDL_STATIC_LIBS)
  4067 AC_SUBST(SDL_RLD_FLAGS)
  4068 if test x$enable_shared = xyes; then
  4069     ENABLE_SHARED_TRUE=
  4070     ENABLE_SHARED_FALSE="#"
  4071 else
  4072     ENABLE_SHARED_TRUE="#"
  4073     ENABLE_SHARED_FALSE=
  4074 fi
  4075 if test x$enable_static = xyes; then
  4076     ENABLE_STATIC_TRUE=
  4077     ENABLE_STATIC_FALSE="#"
  4078 else
  4079     ENABLE_STATIC_TRUE="#"
  4080     ENABLE_STATIC_FALSE=
  4081 fi
  4082 AC_SUBST(ENABLE_SHARED_TRUE)
  4083 AC_SUBST(ENABLE_SHARED_FALSE)
  4084 AC_SUBST(ENABLE_STATIC_TRUE)
  4085 AC_SUBST(ENABLE_STATIC_FALSE)
  4086 
  4087 dnl Expand the sources and objects needed to build the library
  4088 AC_SUBST(ac_aux_dir)
  4089 AC_SUBST(INCLUDE)
  4090 AC_SUBST(OBJECTS)
  4091 AC_SUBST(GEN_HEADERS)
  4092 AC_SUBST(GEN_OBJECTS)
  4093 AC_SUBST(VERSION_OBJECTS)
  4094 AC_SUBST(SDLMAIN_OBJECTS)
  4095 AC_SUBST(SDLTEST_OBJECTS)
  4096 AC_SUBST(BUILD_CFLAGS)
  4097 AC_SUBST(EXTRA_CFLAGS)
  4098 AC_SUBST(BUILD_LDFLAGS)
  4099 AC_SUBST(EXTRA_LDFLAGS)
  4100 AC_SUBST(WINDRES)
  4101 AC_SUBST(WAYLAND_SCANNER)
  4102 
  4103 cat >Makefile.rules <<__EOF__
  4104 
  4105 # Build rules for objects
  4106 -include \$(OBJECTS:.lo=.d)
  4107 
  4108 # Special dependency for SDL.c, since it depends on SDL_revision.h
  4109 $srcdir/src/SDL.c: update-revision
  4110 $DEPENDS
  4111 $VERSION_DEPENDS
  4112 $SDLMAIN_DEPENDS
  4113 $SDLTEST_DEPENDS
  4114 $WAYLAND_PROTOCOLS_DEPENDS
  4115 __EOF__
  4116 
  4117 AC_CONFIG_FILES([
  4118     Makefile:Makefile.in:Makefile.rules sdl2-config sdl2-config.cmake SDL2.spec sdl2.pc
  4119 ])
  4120 AC_CONFIG_COMMANDS([sdl2_config],[chmod a+x sdl2-config])
  4121 
  4122 SUMMARY="SDL2 Configure Summary:\n"
  4123 if test x$enable_shared = xyes; then
  4124     SUMMARY="${SUMMARY}Building Shared Libraries\n"
  4125 fi
  4126 if test x$enable_static = xyes; then
  4127     SUMMARY="${SUMMARY}Building Static Libraries\n"
  4128 fi
  4129 SUMMARY="${SUMMARY}Enabled modules :${SUMMARY_modules}\n"
  4130 SUMMARY="${SUMMARY}Assembly Math   :${SUMMARY_math}\n" 
  4131 SUMMARY="${SUMMARY}Audio drivers   :${SUMMARY_audio}\n"
  4132 SUMMARY="${SUMMARY}Video drivers   :${SUMMARY_video}\n"
  4133 if test x$have_x = xyes; then
  4134     SUMMARY="${SUMMARY}X11 libraries   :${SUMMARY_video_x11}\n"
  4135 fi
  4136 SUMMARY="${SUMMARY}Input drivers   :${SUMMARY_input}\n"
  4137 if test x$have_samplerate_h_hdr = xyes; then
  4138     SUMMARY="${SUMMARY}Using libsamplerate : YES\n"
  4139 else
  4140     SUMMARY="${SUMMARY}Using libsamplerate : NO\n"
  4141 fi
  4142 if test x$have_libudev_h_hdr = xyes; then
  4143     SUMMARY="${SUMMARY}Using libudev       : YES\n"
  4144 else
  4145     SUMMARY="${SUMMARY}Using libudev       : NO\n"
  4146 fi
  4147 if test x$have_dbus_dbus_h_hdr = xyes; then
  4148     SUMMARY="${SUMMARY}Using dbus          : YES\n"
  4149 else
  4150     SUMMARY="${SUMMARY}Using dbus          : NO\n"
  4151 fi
  4152 if test x$enable_ime = xyes; then
  4153     SUMMARY="${SUMMARY}Using ime           : YES\n"
  4154 else
  4155     SUMMARY="${SUMMARY}Using ime           : NO\n"
  4156 fi
  4157 if test x$have_ibus_ibus_h_hdr = xyes; then
  4158     SUMMARY="${SUMMARY}Using ibus          : YES\n"
  4159 else
  4160     SUMMARY="${SUMMARY}Using ibus          : NO\n"
  4161 fi
  4162 if test x$have_fcitx_frontend_h_hdr = xyes; then
  4163     SUMMARY="${SUMMARY}Using fcitx         : YES\n"
  4164 else
  4165     SUMMARY="${SUMMARY}Using fcitx         : NO\n"
  4166 fi
  4167 AC_CONFIG_COMMANDS([summary], [echo -en "$SUMMARY"], [SUMMARY="$SUMMARY"])
  4168 
  4169 AC_OUTPUT