CMakeLists.txt
author Ryan C. Gordon <icculus@icculus.org>
Thu, 23 Aug 2018 14:32:30 -0400
changeset 12149 e037e9c2bc00
parent 12130 24142c5073a4
child 12171 26a817fe1b07
permissions -rw-r--r--
cmake: add sensor subsystem to the build.
     1 if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
     2   message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL source code and call cmake from there")
     3 endif()
     4 
     5 cmake_minimum_required(VERSION 2.8.11)
     6 project(SDL2 C)
     7 
     8 # !!! FIXME: this should probably do "MACOSX_RPATH ON" as a target property
     9 # !!! FIXME:  for the SDL2 shared library (so you get an
    10 # !!! FIXME:  install_name ("soname") of "@rpath/libSDL-whatever.dylib"
    11 # !!! FIXME:  instead of "/usr/local/lib/libSDL-whatever.dylib"), but I'm
    12 # !!! FIXME:  punting for now and leaving the existing behavior. Until this
    13 # !!! FIXME:  properly resolved, this line silences a warning in CMake 3.0+.
    14 # !!! FIXME:  remove it and this comment entirely once the problem is
    15 # !!! FIXME:  properly resolved.
    16 #cmake_policy(SET CMP0042 OLD)
    17 
    18 include(CheckFunctionExists)
    19 include(CheckLibraryExists)
    20 include(CheckIncludeFiles)
    21 include(CheckIncludeFile)
    22 include(CheckSymbolExists)
    23 include(CheckCSourceCompiles)
    24 include(CheckCSourceRuns)
    25 include(CheckCCompilerFlag)
    26 include(CheckTypeSize)
    27 include(CheckStructHasMember)
    28 include(CMakeDependentOption)
    29 include(FindPkgConfig)
    30 include(GNUInstallDirs)
    31 set(CMAKE_MODULE_PATH "${SDL2_SOURCE_DIR}/cmake")
    32 include(${SDL2_SOURCE_DIR}/cmake/macros.cmake)
    33 include(${SDL2_SOURCE_DIR}/cmake/sdlchecks.cmake)
    34 
    35 # General settings
    36 # Edit include/SDL_version.h and change the version, then:
    37 #   SDL_MICRO_VERSION += 1;
    38 #   SDL_INTERFACE_AGE += 1;
    39 #   SDL_BINARY_AGE += 1;
    40 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    41 # if backwards compatibility has been broken,
    42 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    43 set(SDL_MAJOR_VERSION 2)
    44 set(SDL_MINOR_VERSION 0)
    45 set(SDL_MICRO_VERSION 8)
    46 set(SDL_INTERFACE_AGE 0)
    47 set(SDL_BINARY_AGE 8)
    48 set(SDL_VERSION "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}.${SDL_MICRO_VERSION}")
    49 
    50 # Set defaults preventing destination file conflicts
    51 set(SDL_CMAKE_DEBUG_POSTFIX "d"
    52     CACHE STRING "Name suffix for debug builds")
    53 
    54 mark_as_advanced(CMAKE_IMPORT_LIBRARY_SUFFIX SDL_CMAKE_DEBUG_POSTFIX)
    55 
    56 # Calculate a libtool-like version number
    57 math(EXPR LT_CURRENT "${SDL_MICRO_VERSION} - ${SDL_INTERFACE_AGE}")
    58 math(EXPR LT_AGE "${SDL_BINARY_AGE} - ${SDL_INTERFACE_AGE}")
    59 math(EXPR LT_MAJOR "${LT_CURRENT}- ${LT_AGE}")
    60 set(LT_REVISION "${SDL_INTERFACE_AGE}")
    61 set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")
    62 set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}")
    63 
    64 message(STATUS "${LT_VERSION} :: ${LT_AGE} :: ${LT_REVISION} :: ${LT_CURRENT} :: ${LT_RELEASE}")
    65 
    66 # General settings & flags
    67 set(LIBRARY_OUTPUT_DIRECTORY "build")
    68 # Check for 64 or 32 bit
    69 set(SIZEOF_VOIDP ${CMAKE_SIZEOF_VOID_P})
    70 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
    71   set(ARCH_64 TRUE)
    72   set(PROCESSOR_ARCH "x64")
    73 else()
    74   set(ARCH_64 FALSE)
    75   set(PROCESSOR_ARCH "x86")
    76 endif()
    77 set(LIBNAME SDL2)
    78 if(NOT LIBTYPE)
    79   set(LIBTYPE SHARED)
    80 endif()
    81 
    82 # Get the platform
    83 if(WIN32)
    84   if(NOT WINDOWS)
    85     set(WINDOWS TRUE)
    86   endif()
    87 elseif(UNIX AND NOT APPLE)
    88   if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")
    89     set(LINUX TRUE)
    90   elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD.*")
    91     set(FREEBSD TRUE)
    92   elseif(CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")
    93     set(NETBSD TRUE)
    94   elseif(CMAKE_SYSTEM_NAME MATCHES "kOpenBSD.*|OpenBSD.*")
    95     set(OPENBSD TRUE)
    96   elseif(CMAKE_SYSTEM_NAME MATCHES ".*GNU.*")
    97     set(GNU TRUE)
    98   elseif(CMAKE_SYSTEM_NAME MATCHES ".*BSDI.*")
    99     set(BSDI TRUE)
   100   elseif(CMAKE_SYSTEM_NAME MATCHES "DragonFly.*|FreeBSD")
   101     set(FREEBSD TRUE)
   102   elseif(CMAKE_SYSTEM_NAME MATCHES "SYSV5.*")
   103     set(SYSV5 TRUE)
   104   elseif(CMAKE_SYSTEM_NAME MATCHES "Solaris.*")
   105     set(SOLARIS TRUE)
   106   elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX.*")
   107     set(HPUX TRUE)
   108   elseif(CMAKE_SYSTEM_NAME MATCHES "AIX.*")
   109     set(AIX TRUE)
   110   elseif(CMAKE_SYSTEM_NAME MATCHES "Minix.*")
   111     set(MINIX TRUE)
   112   endif()
   113 elseif(APPLE)
   114   if(CMAKE_SYSTEM_NAME MATCHES ".*Darwin.*")
   115     set(DARWIN TRUE)
   116   elseif(CMAKE_SYSTEM_NAME MATCHES ".*MacOS.*")
   117     set(MACOSX TRUE)
   118   endif()
   119   # TODO: iOS?
   120 elseif(CMAKE_SYSTEM_NAME MATCHES "BeOS.*")
   121   message_error("BeOS support has been removed as of SDL 2.0.2.")
   122 elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku.*")
   123   set(HAIKU TRUE)
   124 endif()
   125 
   126 # Don't mistake osx for unix
   127 if(UNIX AND NOT APPLE)
   128   set(UNIX_SYS ON)
   129 else()
   130   set(UNIX_SYS OFF)
   131 endif()
   132 
   133 if(UNIX OR APPLE)
   134   set(UNIX_OR_MAC_SYS ON)
   135 else()
   136   set(UNIX_OR_MAC_SYS OFF)
   137 endif()
   138 
   139 if (UNIX_OR_MAC_SYS AND NOT EMSCRIPTEN) # JavaScript does not yet have threading support, so disable pthreads when building for Emscripten.
   140   set(SDL_PTHREADS_ENABLED_BY_DEFAULT ON)
   141 else()
   142   set(SDL_PTHREADS_ENABLED_BY_DEFAULT OFF)
   143 endif()
   144 
   145 # Default option knobs
   146 if(APPLE OR ARCH_64)
   147   if(NOT "${CMAKE_OSX_ARCHITECTURES}" MATCHES "arm")
   148     set(OPT_DEF_SSEMATH ON)
   149   endif()
   150 endif()
   151 if(UNIX OR MINGW OR MSYS)
   152   set(OPT_DEF_LIBC ON)
   153 endif()
   154 
   155 # Compiler info
   156 if(CMAKE_COMPILER_IS_GNUCC)
   157   set(USE_GCC TRUE)
   158   set(OPT_DEF_ASM TRUE)
   159 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
   160   set(USE_CLANG TRUE)
   161   set(OPT_DEF_ASM TRUE)
   162 elseif(MSVC_VERSION GREATER 1400) # VisualStudio 8.0+
   163   set(OPT_DEF_ASM TRUE)
   164   #set(CMAKE_C_FLAGS "/ZI /WX- /
   165 else()
   166   set(OPT_DEF_ASM FALSE)
   167 endif()
   168 
   169 if(USE_GCC OR USE_CLANG)
   170   set(OPT_DEF_GCC_ATOMICS ON)
   171 endif()
   172 
   173 # Default flags, if not set otherwise
   174 if("$ENV{CFLAGS}" STREQUAL "")
   175   if(CMAKE_BUILD_TYPE STREQUAL "")
   176     if(USE_GCC OR USE_CLANG)
   177       set(CMAKE_C_FLAGS "-g -O3")
   178     endif()
   179   endif()
   180 else()
   181   set(CMAKE_C_FLAGS "$ENV{CFLAGS}")
   182   list(APPEND EXTRA_CFLAGS "$ENV{CFLAGS}")
   183 endif()
   184 if(NOT ("$ENV{CFLAGS}" STREQUAL "")) # Hackish, but does the trick on Win32
   185   list(APPEND EXTRA_LDFLAGS "$ENV{LDFLAGS}")
   186 endif()
   187 
   188 if(MSVC)
   189   option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
   190   if(FORCE_STATIC_VCRT)
   191     foreach(flag_var
   192         CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
   193         CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
   194       if(${flag_var} MATCHES "/MD")
   195         string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
   196       endif()
   197     endforeach()
   198   endif()
   199 
   200   # Make sure /RTC1 is disabled, otherwise it will use functions from the CRT
   201   foreach(flag_var
   202       CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
   203       CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
   204     string(REGEX REPLACE "/RTC(su|[1su])" "" ${flag_var} "${${flag_var}}")
   205   endforeach(flag_var)
   206 endif()
   207 
   208 # Those are used for pkg-config and friends, so that the SDL2.pc, sdl2-config,
   209 # etc. are created correctly.
   210 set(SDL_LIBS "-lSDL2")
   211 set(SDL_CFLAGS "")
   212 
   213 # When building shared lib for Windows with MinGW,
   214 # avoid the DLL having a "lib" prefix
   215 if(WINDOWS)
   216   set(CMAKE_SHARED_LIBRARY_PREFIX "")
   217 endif()
   218 
   219 # Emscripten toolchain has a nonempty default value for this, and the checks
   220 # in this file need to change that, so remember the original value, and
   221 # restore back to that afterwards. For check_function_exists() to work in
   222 # Emscripten, this value must be at its default value.
   223 set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
   224 
   225 if(CYGWIN)
   226   # We build SDL on cygwin without the UNIX emulation layer
   227   include_directories("-I/usr/include/mingw")
   228   set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mno-cygwin")
   229   check_c_source_compiles("int main(int argc, char **argv) {}"
   230     HAVE_GCC_NO_CYGWIN)
   231   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   232   if(HAVE_GCC_NO_CYGWIN)
   233     list(APPEND EXTRA_LDFLAGS "-mno-cygwin")
   234     list(APPEND SDL_LIBS "-mno-cygwin")
   235   endif()
   236   set(SDL_CFLAGS "${SDL_CFLAGS} -I/usr/include/mingw")
   237 endif()
   238 
   239 add_definitions(-DUSING_GENERATED_CONFIG_H)
   240 # General includes
   241 include_directories(${SDL2_BINARY_DIR}/include ${SDL2_SOURCE_DIR}/include)
   242 if(USE_GCC OR USE_CLANG)
   243   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -idirafter ${SDL2_SOURCE_DIR}/src/video/khronos")
   244 else()
   245   include_directories(${SDL2_SOURCE_DIR}/src/video/khronos)
   246 endif()
   247 
   248 # All these ENABLED_BY_DEFAULT vars will default to ON if not specified, so
   249 #  you only need to have a platform override them if they are disabling.
   250 set(OPT_DEF_ASM TRUE)
   251 if(EMSCRIPTEN)
   252   # Set up default values for the currently supported set of subsystems:
   253   # Emscripten/Javascript does not have assembly support, a dynamic library
   254   # loading architecture, low-level CPU inspection or multithreading.
   255   set(OPT_DEF_ASM FALSE)
   256   set(SDL_SHARED_ENABLED_BY_DEFAULT OFF)
   257   set(SDL_ATOMIC_ENABLED_BY_DEFAULT OFF)
   258   set(SDL_THREADS_ENABLED_BY_DEFAULT OFF)
   259   set(SDL_LOADSO_ENABLED_BY_DEFAULT OFF)
   260   set(SDL_CPUINFO_ENABLED_BY_DEFAULT OFF)
   261   set(SDL_DLOPEN_ENABLED_BY_DEFAULT OFF)
   262 endif()
   263 
   264 if (NOT DEFINED SDL_SHARED_ENABLED_BY_DEFAULT)
   265     set(SDL_SHARED_ENABLED_BY_DEFAULT ON)
   266 endif()
   267 
   268 set(SDL_SUBSYSTEMS
   269     Atomic Audio Video Render Events Joystick Haptic Power Threads Timers
   270     File Loadso CPUinfo Filesystem Dlopen Sensor)
   271 foreach(_SUB ${SDL_SUBSYSTEMS})
   272   string(TOUPPER ${_SUB} _OPT)
   273   if (NOT DEFINED SDL_${_OPT}_ENABLED_BY_DEFAULT)
   274     set(SDL_${_OPT}_ENABLED_BY_DEFAULT ON)
   275   endif()
   276   option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ${SDL_${_OPT}_ENABLED_BY_DEFAULT})
   277 endforeach()
   278 
   279 option_string(ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
   280 #set_option(DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)
   281 set_option(LIBC                "Use the system C library" ${OPT_DEF_LIBC})
   282 set_option(GCC_ATOMICS         "Use gcc builtin atomics" ${OPT_DEF_GCC_ATOMICS})
   283 set_option(ASSEMBLY            "Enable assembly routines" ${OPT_DEF_ASM})
   284 set_option(SSEMATH             "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})
   285 set_option(MMX                 "Use MMX assembly routines" ${OPT_DEF_ASM})
   286 set_option(3DNOW               "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})
   287 set_option(SSE                 "Use SSE assembly routines" ${OPT_DEF_ASM})
   288 set_option(SSE2                "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})
   289 set_option(SSE3                "Use SSE3 assembly routines" ${OPT_DEF_SSEMATH})
   290 set_option(ALTIVEC             "Use Altivec assembly routines" ${OPT_DEF_ASM})
   291 set_option(DISKAUDIO           "Support the disk writer audio driver" ON)
   292 set_option(DUMMYAUDIO          "Support the dummy audio driver" ON)
   293 set_option(VIDEO_DIRECTFB      "Use DirectFB video driver" OFF)
   294 dep_option(DIRECTFB_SHARED     "Dynamically load directfb support" ON "VIDEO_DIRECTFB" OFF)
   295 set_option(VIDEO_DUMMY         "Use dummy video driver" ON)
   296 set_option(VIDEO_OPENGL        "Include OpenGL support" ON)
   297 set_option(VIDEO_OPENGLES      "Include OpenGL ES support" ON)
   298 set_option(PTHREADS            "Use POSIX threads for multi-threading" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
   299 dep_option(PTHREADS_SEM        "Use pthread semaphores" ON "PTHREADS" OFF)
   300 set_option(SDL_DLOPEN          "Use dlopen for shared object loading" ${SDL_DLOPEN_ENABLED_BY_DEFAULT})
   301 set_option(OSS                 "Support the OSS audio API" ${UNIX_SYS})
   302 set_option(ALSA                "Support the ALSA audio API" ${UNIX_SYS})
   303 dep_option(ALSA_SHARED         "Dynamically load ALSA audio support" ON "ALSA" OFF)
   304 set_option(JACK                "Support the JACK audio API" ${UNIX_SYS})
   305 dep_option(JACK_SHARED         "Dynamically load JACK audio support" ON "JACK" OFF)
   306 set_option(ESD                 "Support the Enlightened Sound Daemon" ${UNIX_SYS})
   307 dep_option(ESD_SHARED          "Dynamically load ESD audio support" ON "ESD" OFF)
   308 set_option(PULSEAUDIO          "Use PulseAudio" ${UNIX_SYS})
   309 dep_option(PULSEAUDIO_SHARED   "Dynamically load PulseAudio support" ON "PULSEAUDIO" OFF)
   310 set_option(ARTS                "Support the Analog Real Time Synthesizer" ${UNIX_SYS})
   311 dep_option(ARTS_SHARED         "Dynamically load aRts audio support" ON "ARTS" OFF)
   312 set_option(NAS                 "Support the NAS audio API" ${UNIX_SYS})
   313 set_option(NAS_SHARED          "Dynamically load NAS audio API" ${UNIX_SYS})
   314 set_option(SNDIO               "Support the sndio audio API" ${UNIX_SYS})
   315 set_option(FUSIONSOUND         "Use FusionSound audio driver" OFF)
   316 dep_option(FUSIONSOUND_SHARED  "Dynamically load fusionsound audio support" ON "FUSIONSOUND" OFF)
   317 set_option(LIBSAMPLERATE       "Use libsamplerate for audio rate conversion" ${UNIX_SYS})
   318 dep_option(LIBSAMPLERATE_SHARED "Dynamically load libsamplerate" ON "LIBSAMPLERATE" OFF)
   319 set_option(RPATH               "Use an rpath when linking SDL" ${UNIX_SYS})
   320 set_option(CLOCK_GETTIME       "Use clock_gettime() instead of gettimeofday()" OFF)
   321 set_option(INPUT_TSLIB         "Use the Touchscreen library for input" ${UNIX_SYS})
   322 set_option(VIDEO_X11           "Use X11 video driver" ${UNIX_SYS})
   323 set_option(VIDEO_WAYLAND       "Use Wayland video driver" ${UNIX_SYS})
   324 dep_option(WAYLAND_SHARED      "Dynamically load Wayland support" ON "VIDEO_WAYLAND" OFF)
   325 dep_option(VIDEO_WAYLAND_QT_TOUCH  "QtWayland server support for Wayland video driver" ON "VIDEO_WAYLAND" OFF)
   326 set_option(VIDEO_MIR           "Use Mir video driver" ${UNIX_SYS})
   327 dep_option(MIR_SHARED          "Dynamically load Mir support" ON "VIDEO_MIR" OFF)
   328 set_option(VIDEO_RPI           "Use Raspberry Pi video driver" ${UNIX_SYS})
   329 dep_option(X11_SHARED          "Dynamically load X11 support" ON "VIDEO_X11" OFF)
   330 set(SDL_X11_OPTIONS Xcursor Xinerama XInput Xrandr Xscrnsaver XShape Xvm)
   331 foreach(_SUB ${SDL_X11_OPTIONS})
   332   string(TOUPPER "VIDEO_X11_${_SUB}" _OPT)
   333   dep_option(${_OPT}           "Enable ${_SUB} support" ON "VIDEO_X11" OFF)
   334 endforeach()
   335 set_option(VIDEO_COCOA         "Use Cocoa video driver" ${APPLE})
   336 set_option(DIRECTX             "Use DirectX for Windows audio/video" ${WINDOWS})
   337 dep_option(WASAPI              "Use the Windows WASAPI audio driver" ON "DIRECTX" OFF)
   338 set_option(RENDER_D3D          "Enable the Direct3D render driver" ${WINDOWS})
   339 set_option(VIDEO_VIVANTE       "Use Vivante EGL video driver" ${UNIX_SYS})
   340 dep_option(VIDEO_VULKAN        "Enable Vulkan support" ON "ANDROID OR APPLE OR LINUX OR WINDOWS" OFF)
   341 set_option(VIDEO_KMSDRM        "Use KMS DRM video driver" ${UNIX_SYS})
   342 dep_option(KMSDRM_SHARED       "Dynamically load KMS DRM support" ON "VIDEO_KMSDRM" OFF)
   343 
   344 # TODO: We should (should we?) respect cmake's ${BUILD_SHARED_LIBS} flag here
   345 # The options below are for compatibility to configure's default behaviour.
   346 set(SDL_SHARED ${SDL_SHARED_ENABLED_BY_DEFAULT} CACHE BOOL "Build a shared version of the library")
   347 set(SDL_STATIC ON CACHE BOOL "Build a static version of the library")
   348 
   349 dep_option(SDL_STATIC_PIC      "Static version of the library should be built with Position Independent Code" OFF "SDL_STATIC" OFF)
   350 set_option(SDL_TEST            "Build the test directory" OFF)
   351 
   352 # General source files
   353 file(GLOB SOURCE_FILES
   354   ${SDL2_SOURCE_DIR}/src/*.c
   355   ${SDL2_SOURCE_DIR}/src/atomic/*.c
   356   ${SDL2_SOURCE_DIR}/src/audio/*.c
   357   ${SDL2_SOURCE_DIR}/src/cpuinfo/*.c
   358   ${SDL2_SOURCE_DIR}/src/dynapi/*.c
   359   ${SDL2_SOURCE_DIR}/src/events/*.c
   360   ${SDL2_SOURCE_DIR}/src/file/*.c
   361   ${SDL2_SOURCE_DIR}/src/libm/*.c
   362   ${SDL2_SOURCE_DIR}/src/render/*.c
   363   ${SDL2_SOURCE_DIR}/src/render/*/*.c
   364   ${SDL2_SOURCE_DIR}/src/stdlib/*.c
   365   ${SDL2_SOURCE_DIR}/src/thread/*.c
   366   ${SDL2_SOURCE_DIR}/src/timer/*.c
   367   ${SDL2_SOURCE_DIR}/src/video/*.c
   368   ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)
   369 
   370 
   371 if(ASSERTIONS STREQUAL "auto")
   372   # Do nada - use optimization settings to determine the assertion level
   373 elseif(ASSERTIONS STREQUAL "disabled")
   374   set(SDL_DEFAULT_ASSERT_LEVEL 0)
   375 elseif(ASSERTIONS STREQUAL "release")
   376   set(SDL_DEFAULT_ASSERT_LEVEL 1)
   377 elseif(ASSERTIONS STREQUAL "enabled")
   378   set(SDL_DEFAULT_ASSERT_LEVEL 2)
   379 elseif(ASSERTIONS STREQUAL "paranoid")
   380   set(SDL_DEFAULT_ASSERT_LEVEL 3)
   381 else()
   382   message_error("unknown assertion level")
   383 endif()
   384 set(HAVE_ASSERTIONS ${ASSERTIONS})
   385 
   386 # Compiler option evaluation
   387 if(USE_GCC OR USE_CLANG)
   388   # Check for -Wall first, so later things can override pieces of it.
   389   check_c_compiler_flag(-Wall HAVE_GCC_WALL)
   390   if(HAVE_GCC_WALL)
   391     list(APPEND EXTRA_CFLAGS "-Wall")
   392     if(HAIKU)
   393       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-multichar")
   394     endif()
   395   endif()
   396 
   397   check_c_compiler_flag(-Wdeclaration-after-statement HAVE_GCC_WDECLARATION_AFTER_STATEMENT)
   398   if(HAVE_GCC_WDECLARATION_AFTER_STATEMENT)
   399     check_c_compiler_flag(-Werror=declaration-after-statement HAVE_GCC_WERROR_DECLARATION_AFTER_STATEMENT)
   400     if(HAVE_GCC_WERROR_DECLARATION_AFTER_STATEMENT)
   401       list(APPEND EXTRA_CFLAGS "-Werror=declaration-after-statement")
   402     endif()
   403     list(APPEND EXTRA_CFLAGS "-Wdeclaration-after-statement")
   404   endif()
   405 
   406   if(DEPENDENCY_TRACKING)
   407     check_c_source_compiles("
   408         #if !defined(__GNUC__) || __GNUC__ < 3
   409         #error Dependency tracking requires GCC 3.0 or newer
   410         #endif
   411         int main(int argc, char **argv) { }" HAVE_DEPENDENCY_TRACKING)
   412   endif()
   413 
   414   if(GCC_ATOMICS)
   415     check_c_source_compiles("int main(int argc, char **argv) {
   416         int a;
   417         void *x, *y, *z;
   418         __sync_lock_test_and_set(&a, 4);
   419         __sync_lock_test_and_set(&x, y);
   420         __sync_fetch_and_add(&a, 1);
   421         __sync_bool_compare_and_swap(&a, 5, 10);
   422         __sync_bool_compare_and_swap(&x, y, z); }" HAVE_GCC_ATOMICS)
   423     if(NOT HAVE_GCC_ATOMICS)
   424       check_c_source_compiles("int main(int argc, char **argv) {
   425           int a;
   426           __sync_lock_test_and_set(&a, 1);
   427           __sync_lock_release(&a); }" HAVE_GCC_SYNC_LOCK_TEST_AND_SET)
   428     endif()
   429   endif()
   430 
   431   set(CMAKE_REQUIRED_FLAGS "-mpreferred-stack-boundary=2")
   432   check_c_source_compiles("int x = 0; int main(int argc, char **argv) {}"
   433     HAVE_GCC_PREFERRED_STACK_BOUNDARY)
   434   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   435 
   436   set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden -Werror")
   437   check_c_source_compiles("
   438       #if !defined(__GNUC__) || __GNUC__ < 4
   439       #error SDL only uses visibility attributes in GCC 4 or newer
   440       #endif
   441       int main(int argc, char **argv) {}" HAVE_GCC_FVISIBILITY)
   442   if(HAVE_GCC_FVISIBILITY)
   443     list(APPEND EXTRA_CFLAGS "-fvisibility=hidden")
   444   endif()
   445   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   446 
   447   check_c_compiler_flag(-Wshadow HAVE_GCC_WSHADOW)
   448   if(HAVE_GCC_WSHADOW)
   449     list(APPEND EXTRA_CFLAGS "-Wshadow")
   450   endif()
   451 
   452   if(APPLE)
   453     list(APPEND EXTRA_LDFLAGS "-Wl,-undefined,error")
   454   else()
   455     set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
   456     check_c_compiler_flag("" HAVE_NO_UNDEFINED)
   457     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   458     if(HAVE_NO_UNDEFINED)
   459       list(APPEND EXTRA_LDFLAGS "-Wl,--no-undefined")
   460     endif()
   461   endif()
   462 endif()
   463 
   464 if(ASSEMBLY)
   465   if(USE_GCC OR USE_CLANG)
   466     set(SDL_ASSEMBLY_ROUTINES 1)
   467     # TODO: Those all seem to be quite GCC specific - needs to be
   468     # reworked for better compiler support
   469     set(HAVE_ASSEMBLY TRUE)
   470     if(MMX)
   471       set(CMAKE_REQUIRED_FLAGS "-mmmx")
   472       check_c_source_compiles("
   473           #ifdef __MINGW32__
   474           #include <_mingw.h>
   475           #ifdef __MINGW64_VERSION_MAJOR
   476           #include <intrin.h>
   477           #else
   478           #include <mmintrin.h>
   479           #endif
   480           #else
   481           #include <mmintrin.h>
   482           #endif
   483           #ifndef __MMX__
   484           #error Assembler CPP flag not enabled
   485           #endif
   486           int main(int argc, char **argv) { }" HAVE_MMX)
   487       if(HAVE_MMX)
   488         list(APPEND EXTRA_CFLAGS "-mmmx")
   489       endif()
   490       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   491     endif()
   492 
   493     if(3DNOW)
   494       set(CMAKE_REQUIRED_FLAGS "-m3dnow")
   495       check_c_source_compiles("
   496           #include <mm3dnow.h>
   497           #ifndef __3dNOW__
   498           #error Assembler CPP flag not enabled
   499           #endif
   500           int main(int argc, char **argv) {
   501             void *p = 0;
   502             _m_prefetch(p);
   503           }" HAVE_3DNOW)
   504       if(HAVE_3DNOW)
   505         list(APPEND EXTRA_CFLAGS "-m3dnow")
   506       endif()
   507       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   508     endif()
   509 
   510     if(SSE)
   511       set(CMAKE_REQUIRED_FLAGS "-msse")
   512       check_c_source_compiles("
   513           #ifdef __MINGW32__
   514           #include <_mingw.h>
   515           #ifdef __MINGW64_VERSION_MAJOR
   516           #include <intrin.h>
   517           #else
   518           #include <xmmintrin.h>
   519           #endif
   520           #else
   521           #include <xmmintrin.h>
   522           #endif
   523           #ifndef __SSE__
   524           #error Assembler CPP flag not enabled
   525           #endif
   526           int main(int argc, char **argv) { }" HAVE_SSE)
   527       if(HAVE_SSE)
   528         list(APPEND EXTRA_CFLAGS "-msse")
   529       endif()
   530       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   531     endif()
   532 
   533     if(SSE2)
   534       set(CMAKE_REQUIRED_FLAGS "-msse2")
   535       check_c_source_compiles("
   536           #ifdef __MINGW32__
   537           #include <_mingw.h>
   538           #ifdef __MINGW64_VERSION_MAJOR
   539           #include <intrin.h>
   540           #else
   541           #include <emmintrin.h>
   542           #endif
   543           #else
   544           #include <emmintrin.h>
   545           #endif
   546           #ifndef __SSE2__
   547           #error Assembler CPP flag not enabled
   548           #endif
   549           int main(int argc, char **argv) { }" HAVE_SSE2)
   550       if(HAVE_SSE2)
   551         list(APPEND EXTRA_CFLAGS "-msse2")
   552       endif()
   553       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   554     endif()
   555 
   556     if(SSE3)
   557       set(CMAKE_REQUIRED_FLAGS "-msse3")
   558       check_c_source_compiles("
   559           #ifdef __MINGW32__
   560           #include <_mingw.h>
   561           #ifdef __MINGW64_VERSION_MAJOR
   562           #include <intrin.h>
   563           #else
   564           #include <pmmintrin.h>
   565           #endif
   566           #else
   567           #include <pmmintrin.h>
   568           #endif
   569           #ifndef __SSE3__
   570           #error Assembler CPP flag not enabled
   571           #endif
   572           int main(int argc, char **argv) { }" HAVE_SSE3)
   573       if(HAVE_SSE3)
   574         list(APPEND EXTRA_CFLAGS "-msse3")
   575       endif()
   576       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   577     endif()
   578 
   579     if(NOT SSEMATH)
   580       if(SSE OR SSE2 OR SSE3)
   581         if(USE_GCC)
   582           check_c_compiler_flag(-mfpmath=387 HAVE_FP_387)
   583           if(HAVE_FP_387)
   584             list(APPEND EXTRA_CFLAGS "-mfpmath=387")
   585           endif()
   586         endif()
   587         set(HAVE_SSEMATH TRUE)
   588       endif()
   589     endif()
   590 
   591     check_include_file("immintrin.h" HAVE_IMMINTRIN_H)
   592 
   593     if(ALTIVEC)
   594       set(CMAKE_REQUIRED_FLAGS "-maltivec")
   595       check_c_source_compiles("
   596           #include <altivec.h>
   597           vector unsigned int vzero() {
   598               return vec_splat_u32(0);
   599           }
   600           int main(int argc, char **argv) { }" HAVE_ALTIVEC_H_HDR)
   601       check_c_source_compiles("
   602           vector unsigned int vzero() {
   603               return vec_splat_u32(0);
   604           }
   605           int main(int argc, char **argv) { }" HAVE_ALTIVEC)
   606       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   607       if(HAVE_ALTIVEC OR HAVE_ALTIVEC_H_HDR)
   608         set(HAVE_ALTIVEC TRUE) # if only HAVE_ALTIVEC_H_HDR is set
   609         list(APPEND EXTRA_CFLAGS "-maltivec")
   610         set(SDL_ALTIVEC_BLITTERS 1)
   611         if(HAVE_ALTIVEC_H_HDR)
   612           set(HAVE_ALTIVEC_H 1)
   613         endif()
   614       endif()
   615     endif()
   616   elseif(MSVC_VERSION GREATER 1500)
   617     # TODO: SDL_cpuinfo.h needs to support the user's configuration wish
   618     # for MSVC - right now it is always activated
   619     if(NOT ARCH_64)
   620       set(HAVE_MMX TRUE)
   621       set(HAVE_3DNOW TRUE)
   622     endif()
   623     set(HAVE_SSE TRUE)
   624     set(HAVE_SSE2 TRUE)
   625     set(HAVE_SSE3 TRUE)
   626     set(SDL_ASSEMBLY_ROUTINES 1)
   627   endif()
   628 # TODO:
   629 #else()
   630 #  if(USE_GCC OR USE_CLANG)
   631 #    list(APPEND EXTRA_CFLAGS "-mno-sse" "-mno-sse2" "-mno-sse3" "-mno-mmx")
   632 #  endif()
   633 endif()
   634 
   635 # TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define
   636 # anything.
   637 if(LIBC)
   638   if(WINDOWS AND NOT MINGW)
   639     set(HAVE_LIBC TRUE)
   640     foreach(_HEADER stdio.h string.h wchar.h ctype.h math.h limits.h)
   641       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   642       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   643       set(${_HAVE_H} 1)
   644     endforeach()
   645     set(HAVE_SIGNAL_H 1)
   646     foreach(_FN
   647             malloc calloc realloc free qsort abs memset memcpy memmove memcmp
   648             wcslen wcscmp
   649             strlen _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   650             _ultoa strtol strtoul strtoll strtod atoi atof strcmp strncmp
   651             _stricmp _strnicmp sscanf
   652             acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf
   653             copysign copysignf cos cosf exp expf fabs fabsf floor floorf fmod fmodf
   654             log logf log10 log10f pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   655       string(TOUPPER ${_FN} _UPPER)
   656       set(HAVE_${_UPPER} 1)
   657     endforeach()
   658     if(NOT CYGWIN AND NOT MINGW)
   659       set(HAVE_ALLOCA 1)
   660     endif()
   661     set(HAVE_M_PI 1)
   662     add_definitions(-D_USE_MATH_DEFINES) # needed for M_PI
   663     set(STDC_HEADERS 1)
   664   else()
   665     set(HAVE_LIBC TRUE)
   666     check_include_file(sys/types.h HAVE_SYS_TYPES_H)
   667     foreach(_HEADER
   668             stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h limits.h
   669             strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h libunwind.h)
   670       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   671       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   672       check_include_file("${_HEADER}" ${_HAVE_H})
   673     endforeach()
   674 
   675     check_include_files("dlfcn.h;stdint.h;stddef.h;inttypes.h;stdlib.h;strings.h;string.h;float.h" STDC_HEADERS)
   676     check_type_size("size_t" SIZEOF_SIZE_T)
   677     check_symbol_exists(M_PI math.h HAVE_M_PI)
   678     # TODO: refine the mprotect check
   679     check_c_source_compiles("#include <sys/types.h>
   680                              #include <sys/mman.h>
   681                              int main() { }" HAVE_MPROTECT)
   682     foreach(_FN
   683             strtod malloc calloc realloc free getenv setenv putenv unsetenv
   684             qsort abs bcopy memset memcpy memmove memcmp strlen strlcpy strlcat
   685             _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   686             _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull
   687             atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp
   688             vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp
   689             nanosleep sysconf sysctlbyname getauxval poll
   690             )
   691       string(TOUPPER ${_FN} _UPPER)
   692       set(_HAVEVAR "HAVE_${_UPPER}")
   693       check_function_exists("${_FN}" ${_HAVEVAR})
   694     endforeach()
   695 
   696     check_library_exists(m pow "" HAVE_LIBM)
   697     if(HAVE_LIBM)
   698       set(CMAKE_REQUIRED_LIBRARIES m)
   699       foreach(_FN
   700               atan atan2 ceil copysign cos cosf fabs floor log pow scalbn sin
   701               sinf sqrt sqrtf tan tanf acos asin)
   702         string(TOUPPER ${_FN} _UPPER)
   703         set(_HAVEVAR "HAVE_${_UPPER}")
   704         check_function_exists("${_FN}" ${_HAVEVAR})
   705       endforeach()
   706       set(CMAKE_REQUIRED_LIBRARIES)
   707       list(APPEND EXTRA_LIBS m)
   708     endif()
   709 
   710     check_library_exists(iconv iconv_open "" HAVE_LIBICONV)
   711     if(HAVE_LIBICONV)
   712       list(APPEND EXTRA_LIBS iconv)
   713       set(HAVE_ICONV 1)
   714     endif()
   715 
   716     if(NOT APPLE)
   717       check_include_file(alloca.h HAVE_ALLOCA_H)
   718       check_function_exists(alloca HAVE_ALLOCA)
   719     else()
   720       set(HAVE_ALLOCA_H 1)
   721       set(HAVE_ALLOCA 1)
   722     endif()
   723 
   724     check_struct_has_member("struct sigaction" "sa_sigaction" "signal.h" HAVE_SA_SIGACTION)
   725   endif()
   726 else()
   727   if(WINDOWS)
   728     set(HAVE_STDARG_H 1)
   729     set(HAVE_STDDEF_H 1)
   730   endif()
   731 endif()
   732 
   733 
   734 # Enable/disable various subsystems of the SDL library
   735 foreach(_SUB ${SDL_SUBSYSTEMS})
   736   string(TOUPPER ${_SUB} _OPT)
   737   if(NOT SDL_${_OPT})
   738     set(SDL_${_OPT}_DISABLED 1)
   739   endif()
   740 endforeach()
   741 if(SDL_JOYSTICK)
   742   file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/*.c)
   743   set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
   744 endif()
   745 if(SDL_HAPTIC)
   746   if(NOT SDL_JOYSTICK)
   747     # Haptic requires some private functions from the joystick subsystem.
   748     message_error("SDL_HAPTIC requires SDL_JOYSTICK, which is not enabled")
   749   endif()
   750   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/*.c)
   751   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
   752 endif()
   753 if(SDL_SENSOR)
   754   file(GLOB SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/*.c)
   755   set(SOURCE_FILES ${SOURCE_FILES} ${SENSOR_SOURCES})
   756 endif()
   757 if(SDL_POWER)
   758   file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/*.c)
   759   set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
   760 endif()
   761 # TODO: in configure.in, the test for LOADSO and SDL_DLOPEN is a bit weird:
   762 # if LOADSO is not wanted, SDL_LOADSO_DISABLED is set
   763 # If however on Unix or APPLE dlopen() is detected via CheckDLOPEN(),
   764 # SDL_LOADSO_DISABLED will not be set, regardless of the LOADSO settings
   765 
   766 # General SDL subsystem options, valid for all platforms
   767 if(SDL_AUDIO)
   768   # CheckDummyAudio/CheckDiskAudio - valid for all platforms
   769   if(DUMMYAUDIO)
   770     set(SDL_AUDIO_DRIVER_DUMMY 1)
   771     file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)
   772     set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})
   773     set(HAVE_DUMMYAUDIO TRUE)
   774   endif()
   775   if(DISKAUDIO)
   776     set(SDL_AUDIO_DRIVER_DISK 1)
   777     file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)
   778     set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})
   779     set(HAVE_DISKAUDIO TRUE)
   780   endif()
   781 endif()
   782 
   783 if(SDL_DLOPEN)
   784   # Relevant for Unix/Darwin only
   785   if(UNIX OR APPLE)
   786     CheckDLOPEN()
   787   endif()
   788 endif()
   789 
   790 if(SDL_VIDEO)
   791   if(VIDEO_DUMMY)
   792     set(SDL_VIDEO_DRIVER_DUMMY 1)
   793     file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)
   794     set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})
   795     set(HAVE_VIDEO_DUMMY TRUE)
   796     set(HAVE_SDL_VIDEO TRUE)
   797   endif()
   798 endif()
   799 
   800 if(ANDROID)
   801   file(GLOB ANDROID_CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/android/*.c)
   802   set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES})
   803 
   804   # SDL_spinlock.c Needs to be compiled in ARM mode.
   805   # There seems to be no better way currently to set the ARM mode.
   806   # see: https://issuetracker.google.com/issues/62264618
   807   # Another option would be to set ARM mode to all compiled files
   808   check_c_compiler_flag(-marm HAVE_ARM_MODE)
   809   if(HAVE_ARM_MODE)
   810     set_source_files_properties(${SDL2_SOURCE_DIR}/src/atomic/SDL_spinlock.c PROPERTIES COMPILE_FLAGS -marm)
   811   endif()
   812 
   813   file(GLOB ANDROID_MAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/android/*.c)
   814   set(SDLMAIN_SOURCES ${SDLMAIN_SOURCES} ${ANDROID_MAIN_SOURCES})
   815 
   816   if(SDL_AUDIO)
   817     set(SDL_AUDIO_DRIVER_ANDROID 1)
   818     file(GLOB ANDROID_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/android/*.c)
   819     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_AUDIO_SOURCES})
   820     set(HAVE_SDL_AUDIO TRUE)
   821   endif()
   822   if(SDL_FILESYSTEM)
   823     set(SDL_FILESYSTEM_ANDROID 1)
   824     file(GLOB ANDROID_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/android/*.c)
   825     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_FILESYSTEM_SOURCES})
   826     set(HAVE_SDL_FILESYSTEM TRUE)
   827   endif()
   828   if(SDL_HAPTIC)
   829     set(SDL_HAPTIC_ANDROID 1)
   830     file(GLOB ANDROID_HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/android/*.c)
   831     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_HAPTIC_SOURCES})
   832     set(HAVE_SDL_HAPTIC TRUE)
   833   endif()
   834   if(SDL_JOYSTICK)
   835     set(SDL_JOYSTICK_ANDROID 1)
   836     file(GLOB ANDROID_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/android/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
   837     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_JOYSTICK_SOURCES})
   838     set(HAVE_SDL_JOYSTICK TRUE)
   839   endif()
   840   if(SDL_LOADSO)
   841     set(SDL_LOADSO_DLOPEN 1)
   842     file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dlopen/*.c)
   843     set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
   844     set(HAVE_SDL_LOADSO TRUE)
   845   endif()
   846   if(SDL_POWER)
   847     set(SDL_POWER_ANDROID 1)
   848     file(GLOB ANDROID_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/android/*.c)
   849     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_POWER_SOURCES})
   850     set(HAVE_SDL_POWER TRUE)
   851   endif()
   852   if(SDL_TIMERS)
   853     set(SDL_TIMER_UNIX 1)
   854     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
   855     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   856     set(HAVE_SDL_TIMERS TRUE)
   857   endif()
   858   if(SDL_SENSOR)
   859     set(SDL_SENSOR_ANDROID 1)
   860     set(HAVE_SDL_SENSORS TRUE)
   861     file(GLOB ANDROID_SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/android/*.c)
   862     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_SENSOR_SOURCES})
   863   endif()
   864   if(SDL_VIDEO)
   865     set(SDL_VIDEO_DRIVER_ANDROID 1)
   866     file(GLOB ANDROID_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/android/*.c)
   867     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_VIDEO_SOURCES})
   868     set(HAVE_SDL_VIDEO TRUE)
   869 
   870     # Core stuff
   871     find_library(ANDROID_DL_LIBRARY dl)
   872     find_library(ANDROID_LOG_LIBRARY log)
   873     find_library(ANDROID_LIBRARY_LIBRARY android)
   874     list(APPEND EXTRA_LIBS ${ANDROID_DL_LIBRARY} ${ANDROID_LOG_LIBRARY} ${ANDROID_LIBRARY_LIBRARY})
   875     add_definitions(-DGL_GLEXT_PROTOTYPES)
   876 
   877     #enable gles
   878     if(VIDEO_OPENGLES)
   879       set(SDL_VIDEO_OPENGL_EGL 1)
   880       set(HAVE_VIDEO_OPENGLES TRUE)
   881       set(SDL_VIDEO_OPENGL_ES2 1)
   882       set(SDL_VIDEO_RENDER_OGL_ES2 1)
   883 
   884       find_library(OpenGLES1_LIBRARY GLESv1_CM)
   885       find_library(OpenGLES2_LIBRARY GLESv2)
   886       list(APPEND EXTRA_LIBS ${OpenGLES1_LIBRARY} ${OpenGLES2_LIBRARY})
   887     endif()
   888 
   889     CHECK_C_SOURCE_COMPILES("
   890     #if defined(__ARM_ARCH) && __ARM_ARCH < 7
   891     #error Vulkan doesn't work on this configuration
   892     #endif
   893     int main()
   894     {
   895         return 0;
   896     }
   897     " VULKAN_PASSED_ANDROID_CHECKS)
   898     if(NOT VULKAN_PASSED_ANDROID_CHECKS)
   899       set(VIDEO_VULKAN OFF)
   900       message(STATUS "Vulkan doesn't work on this configuration")
   901     endif()
   902   endif()
   903 
   904   CheckPTHREAD()
   905 
   906 endif()
   907 
   908 # Platform-specific options and settings
   909 if(EMSCRIPTEN)
   910   # Hide noisy warnings that intend to aid mostly during initial stages of porting a new
   911   # project. Uncomment at will for verbose cross-compiling -I/../ path info.
   912   add_definitions(-Wno-warn-absolute-paths)
   913   if(SDL_AUDIO)
   914     set(SDL_AUDIO_DRIVER_EMSCRIPTEN 1)
   915     file(GLOB EM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/emscripten/*.c)
   916     set(SOURCE_FILES ${SOURCE_FILES} ${EM_AUDIO_SOURCES})
   917     set(HAVE_SDL_AUDIO TRUE)
   918   endif()
   919   if(SDL_FILESYSTEM)
   920     set(SDL_FILESYSTEM_EMSCRIPTEN 1)
   921     file(GLOB EM_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/emscripten/*.c)
   922     set(SOURCE_FILES ${SOURCE_FILES} ${EM_FILESYSTEM_SOURCES})
   923     set(HAVE_SDL_FILESYSTEM TRUE)
   924   endif()
   925   if(SDL_JOYSTICK)
   926     set(SDL_JOYSTICK_EMSCRIPTEN 1)
   927     file(GLOB EM_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/emscripten/*.c)
   928     set(SOURCE_FILES ${SOURCE_FILES} ${EM_JOYSTICK_SOURCES})
   929     set(HAVE_SDL_JOYSTICK TRUE)
   930   endif()
   931   if(SDL_POWER)
   932     set(SDL_POWER_EMSCRIPTEN 1)
   933     file(GLOB EM_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/emscripten/*.c)
   934     set(SOURCE_FILES ${SOURCE_FILES} ${EM_POWER_SOURCES})
   935     set(HAVE_SDL_POWER TRUE)
   936   endif()
   937   if(SDL_TIMERS)
   938     set(SDL_TIMER_UNIX 1)
   939     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
   940     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   941     set(HAVE_SDL_TIMERS TRUE)
   942 
   943     if(CLOCK_GETTIME)
   944       set(HAVE_CLOCK_GETTIME 1)
   945     endif()
   946   endif()
   947   if(SDL_VIDEO)
   948     set(SDL_VIDEO_DRIVER_EMSCRIPTEN 1)
   949     file(GLOB EM_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/emscripten/*.c)
   950     set(SOURCE_FILES ${SOURCE_FILES} ${EM_VIDEO_SOURCES})
   951     set(HAVE_SDL_VIDEO TRUE)
   952 
   953     #enable gles
   954     if(VIDEO_OPENGLES)
   955       set(SDL_VIDEO_OPENGL_EGL 1)
   956       set(HAVE_VIDEO_OPENGLES TRUE)
   957       set(SDL_VIDEO_OPENGL_ES2 1)
   958       set(SDL_VIDEO_RENDER_OGL_ES2 1)
   959     endif()
   960   endif()
   961 elseif(UNIX AND NOT APPLE AND NOT ANDROID)
   962   if(SDL_AUDIO)
   963     if(SYSV5 OR SOLARIS OR HPUX)
   964         set(SDL_AUDIO_DRIVER_SUNAUDIO 1)
   965         file(GLOB SUN_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sun/*.c)
   966         set(SOURCE_FILES ${SOURCE_FILES} ${SUN_AUDIO_SOURCES})
   967         set(HAVE_SDL_AUDIO TRUE)
   968     elseif(NETBSD)
   969         set(SDL_AUDIO_DRIVER_NETBSD 1)
   970         file(GLOB NETBSD_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/netbsd/*.c)
   971         set(SOURCE_FILES ${SOURCE_FILES} ${NETBSD_AUDIO_SOURCES})
   972         set(HAVE_SDL_AUDIO TRUE)
   973     elseif(AIX)
   974         set(SDL_AUDIO_DRIVER_PAUDIO 1)
   975         file(GLOB AIX_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/paudio/*.c)
   976         set(SOURCE_FILES ${SOURCE_FILES} ${AIX_AUDIO_SOURCES})
   977         set(HAVE_SDL_AUDIO TRUE)
   978     endif()
   979     CheckOSS()
   980     CheckALSA()
   981     CheckJACK()
   982     CheckPulseAudio()
   983     CheckESD()
   984     CheckARTS()
   985     CheckNAS()
   986     CheckSNDIO()
   987     CheckFusionSound()
   988     CheckLibSampleRate()
   989   endif()
   990 
   991   if(SDL_VIDEO)
   992     # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
   993     CheckRPI()
   994     CheckX11()
   995     CheckMir()
   996     CheckDirectFB()
   997     CheckOpenGLX11()
   998     CheckOpenGLESX11()
   999     CheckWayland()
  1000     CheckVivante()
  1001     CheckKMSDRM()
  1002   endif()
  1003 
  1004   if(UNIX)
  1005     file(GLOB CORE_UNIX_SOURCES ${SDL2_SOURCE_DIR}/src/core/unix/*.c)
  1006     set(SOURCE_FILES ${SOURCE_FILES} ${CORE_UNIX_SOURCES})
  1007   endif()
  1008 
  1009   if(LINUX)
  1010     check_c_source_compiles("
  1011         #include <linux/input.h>
  1012         #ifndef EVIOCGNAME
  1013         #error EVIOCGNAME() ioctl not available
  1014         #endif
  1015         int main(int argc, char** argv) {}" HAVE_INPUT_EVENTS)
  1016 
  1017     check_c_source_compiles("
  1018         #include <linux/kd.h>
  1019         #include <linux/keyboard.h>
  1020 
  1021         int main(int argc, char **argv)
  1022         {
  1023             struct kbentry kbe;
  1024             kbe.kb_table = KG_CTRL;
  1025             ioctl(0, KDGKBENT, &kbe);
  1026         }" HAVE_INPUT_KD)
  1027 
  1028     file(GLOB CORE_LINUX_SOURCES ${SDL2_SOURCE_DIR}/src/core/linux/*.c)
  1029     set(SOURCE_FILES ${SOURCE_FILES} ${CORE_LINUX_SOURCES})
  1030 
  1031     if(HAVE_INPUT_EVENTS)
  1032       set(SDL_INPUT_LINUXEV 1)
  1033     endif()
  1034 
  1035     if(SDL_HAPTIC AND HAVE_INPUT_EVENTS)
  1036       set(SDL_HAPTIC_LINUX 1)
  1037       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/linux/*.c)
  1038       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1039       set(HAVE_SDL_HAPTIC TRUE)
  1040     endif()
  1041 
  1042     if(HAVE_INPUT_KD)
  1043       set(SDL_INPUT_LINUXKD 1)
  1044     endif()
  1045 
  1046     check_include_file("libudev.h" HAVE_LIBUDEV_H)
  1047 
  1048     if(PKG_CONFIG_FOUND)
  1049       pkg_search_module(DBUS dbus-1 dbus)
  1050       if(DBUS_FOUND)
  1051         set(HAVE_DBUS_DBUS_H TRUE)
  1052         include_directories(${DBUS_INCLUDE_DIRS})
  1053         list(APPEND EXTRA_LIBS ${DBUS_LIBRARIES})
  1054       endif()
  1055 
  1056       pkg_search_module(IBUS ibus-1.0 ibus)
  1057       if(IBUS_FOUND)
  1058         set(HAVE_IBUS_IBUS_H TRUE)
  1059         include_directories(${IBUS_INCLUDE_DIRS})
  1060         list(APPEND EXTRA_LIBS ${IBUS_LIBRARIES})
  1061       endif()
  1062     endif()
  1063 
  1064     check_include_file("fcitx/frontend.h" HAVE_FCITX_FRONTEND_H)
  1065   endif()
  1066 
  1067   if(INPUT_TSLIB)
  1068     check_c_source_compiles("
  1069         #include \"tslib.h\"
  1070         int main(int argc, char** argv) { }" HAVE_INPUT_TSLIB)
  1071     if(HAVE_INPUT_TSLIB)
  1072       set(SDL_INPUT_TSLIB 1)
  1073       list(APPEND EXTRA_LIBS ts)
  1074     endif()
  1075   endif()
  1076 
  1077   if(SDL_JOYSTICK)
  1078     CheckUSBHID()   # seems to be BSD specific - limit the test to BSD only?
  1079     if(LINUX AND NOT ANDROID)
  1080       set(SDL_JOYSTICK_LINUX 1)
  1081       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
  1082       set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1083       set(HAVE_SDL_JOYSTICK TRUE)
  1084     endif()
  1085   endif()
  1086 
  1087   CheckPTHREAD()
  1088 
  1089   if(CLOCK_GETTIME)
  1090     check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
  1091     if(FOUND_CLOCK_GETTIME)
  1092       list(APPEND EXTRA_LIBS rt)
  1093       set(HAVE_CLOCK_GETTIME 1)
  1094     else()
  1095       check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
  1096       if(FOUND_CLOCK_GETTIME)
  1097         set(HAVE_CLOCK_GETTIME 1)
  1098       endif()
  1099     endif()
  1100   endif()
  1101 
  1102   check_include_file(linux/version.h HAVE_LINUX_VERSION_H)
  1103   if(HAVE_LINUX_VERSION_H)
  1104     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_LINUX_VERSION_H")
  1105   endif()
  1106 
  1107   if(SDL_POWER)
  1108     if(LINUX)
  1109       set(SDL_POWER_LINUX 1)
  1110       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/linux/*.c)
  1111       set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
  1112       set(HAVE_SDL_POWER TRUE)
  1113     endif()
  1114   endif()
  1115 
  1116   if(SDL_FILESYSTEM)
  1117     set(SDL_FILESYSTEM_UNIX 1)
  1118     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/unix/*.c)
  1119     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1120     set(HAVE_SDL_FILESYSTEM TRUE)
  1121   endif()
  1122 
  1123   if(SDL_TIMERS)
  1124     set(SDL_TIMER_UNIX 1)
  1125     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
  1126     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1127     set(HAVE_SDL_TIMERS TRUE)
  1128   endif()
  1129 
  1130   if(RPATH)
  1131     set(SDL_RLD_FLAGS "")
  1132     if(BSDI OR FREEBSD OR LINUX OR NETBSD)
  1133       set(CMAKE_REQUIRED_FLAGS "-Wl,--enable-new-dtags")
  1134       check_c_compiler_flag("" HAVE_ENABLE_NEW_DTAGS)
  1135       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
  1136       if(HAVE_ENABLE_NEW_DTAGS)
  1137         set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir} -Wl,--enable-new-dtags")
  1138       else()
  1139         set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir}")
  1140       endif()
  1141     elseif(SOLARIS)
  1142       set(SDL_RLD_FLAGS "-R\${libdir}")
  1143     endif()
  1144     set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
  1145     set(HAVE_RPATH TRUE)
  1146   endif()
  1147 
  1148 elseif(WINDOWS)
  1149   find_program(WINDRES windres)
  1150 
  1151   check_c_source_compiles("
  1152     #include <windows.h>
  1153     int main(int argc, char **argv) { }" HAVE_WIN32_CC)
  1154 
  1155   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  1156   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
  1157 
  1158   if(MSVC)
  1159     # Prevent codegen that would use the VC runtime libraries.
  1160     set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/GS-")
  1161     if(NOT ARCH_64)
  1162       set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/arch:SSE")
  1163     endif()
  1164   endif()
  1165 
  1166   # Check for DirectX
  1167   if(DIRECTX)
  1168     if(DEFINED MSVC_VERSION AND NOT ${MSVC_VERSION} LESS 1700)
  1169         set(USE_WINSDK_DIRECTX TRUE)
  1170     endif()
  1171     if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
  1172       if("$ENV{DXSDK_DIR}" STREQUAL "")
  1173         message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")
  1174       endif()
  1175       set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")
  1176     endif()
  1177 
  1178     if(HAVE_WIN32_CC)
  1179       # xinput.h may need windows.h, but doesn't include it itself.
  1180       check_c_source_compiles("
  1181         #include <windows.h>
  1182         #include <xinput.h>
  1183         int main(int argc, char **argv) { }" HAVE_XINPUT_H)
  1184       check_c_source_compiles("
  1185         #include <windows.h>
  1186         #include <xinput.h>
  1187         XINPUT_GAMEPAD_EX x1;
  1188         int main(int argc, char **argv) { }" HAVE_XINPUT_GAMEPAD_EX)
  1189       check_c_source_compiles("
  1190         #include <windows.h>
  1191         #include <xinput.h>
  1192         XINPUT_STATE_EX s1;
  1193         int main(int argc, char **argv) { }" HAVE_XINPUT_STATE_EX)
  1194     else()
  1195       check_include_file(xinput.h HAVE_XINPUT_H)
  1196     endif()
  1197 
  1198     check_include_file(d3d9.h HAVE_D3D_H)
  1199     check_include_file(d3d11_1.h HAVE_D3D11_H)
  1200     check_include_file(ddraw.h HAVE_DDRAW_H)
  1201     check_include_file(dsound.h HAVE_DSOUND_H)
  1202     check_include_file(dinput.h HAVE_DINPUT_H)
  1203     check_include_file(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
  1204     check_include_file(audioclient.h HAVE_AUDIOCLIENT_H)
  1205     check_include_file(dxgi.h HAVE_DXGI_H)
  1206     if(HAVE_D3D_H OR HAVE_D3D11_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H)
  1207       set(HAVE_DIRECTX TRUE)
  1208       if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
  1209       # TODO: change $ENV{DXSDL_DIR} to get the path from the include checks
  1210         link_directories($ENV{DXSDK_DIR}\\lib\\${PROCESSOR_ARCH})
  1211         include_directories($ENV{DXSDK_DIR}\\Include)
  1212       endif()
  1213     endif()
  1214     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
  1215   endif()
  1216 
  1217   if(SDL_AUDIO)
  1218     set(SDL_AUDIO_DRIVER_WINMM 1)
  1219     file(GLOB WINMM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/winmm/*.c)
  1220     set(SOURCE_FILES ${SOURCE_FILES} ${WINMM_AUDIO_SOURCES})
  1221     set(HAVE_SDL_AUDIO TRUE)
  1222 
  1223     if(HAVE_DSOUND_H)
  1224       set(SDL_AUDIO_DRIVER_DSOUND 1)
  1225       file(GLOB DSOUND_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/directsound/*.c)
  1226       set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})
  1227     endif()
  1228 
  1229     if(WASAPI AND HAVE_AUDIOCLIENT_H AND HAVE_MMDEVICEAPI_H)
  1230       set(SDL_AUDIO_DRIVER_WASAPI 1)
  1231       file(GLOB WASAPI_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/wasapi/*.c)
  1232       set(SOURCE_FILES ${SOURCE_FILES} ${WASAPI_AUDIO_SOURCES})
  1233     endif()
  1234   endif()
  1235 
  1236   if(SDL_VIDEO)
  1237     # requires SDL_LOADSO on Windows (IME, DX, etc.)
  1238     if(NOT SDL_LOADSO)
  1239       message_error("SDL_VIDEO requires SDL_LOADSO, which is not enabled")
  1240     endif()
  1241     set(SDL_VIDEO_DRIVER_WINDOWS 1)
  1242     file(GLOB WIN_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/windows/*.c)
  1243     set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})
  1244 
  1245     if(RENDER_D3D AND HAVE_D3D_H)
  1246       set(SDL_VIDEO_RENDER_D3D 1)
  1247       set(HAVE_RENDER_D3D TRUE)
  1248     endif()
  1249     if(RENDER_D3D AND HAVE_D3D11_H)
  1250       set(SDL_VIDEO_RENDER_D3D11 1)
  1251       set(HAVE_RENDER_D3D TRUE)
  1252     endif()
  1253     set(HAVE_SDL_VIDEO TRUE)
  1254   endif()
  1255 
  1256   if(SDL_THREADS)
  1257     set(SDL_THREAD_WINDOWS 1)
  1258     set(SOURCE_FILES ${SOURCE_FILES}
  1259       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_sysmutex.c
  1260       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syssem.c
  1261       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systhread.c
  1262       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systls.c
  1263       ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syscond.c)
  1264     set(HAVE_SDL_THREADS TRUE)
  1265   endif()
  1266 
  1267   if(SDL_POWER)
  1268     set(SDL_POWER_WINDOWS 1)
  1269     set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/windows/SDL_syspower.c)
  1270     set(HAVE_SDL_POWER TRUE)
  1271   endif()
  1272 
  1273   if(SDL_FILESYSTEM)
  1274     set(SDL_FILESYSTEM_WINDOWS 1)
  1275     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/windows/*.c)
  1276     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1277     set(HAVE_SDL_FILESYSTEM TRUE)
  1278   endif()
  1279 
  1280   # Libraries for Win32 native and MinGW
  1281   list(APPEND EXTRA_LIBS user32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 shell32)
  1282 
  1283   # TODO: in configure.in the check for timers is set on
  1284   # cygwin | mingw32* - does this include mingw32CE?
  1285   if(SDL_TIMERS)
  1286     set(SDL_TIMER_WINDOWS 1)
  1287     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/windows/*.c)
  1288     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1289     set(HAVE_SDL_TIMERS TRUE)
  1290   endif()
  1291 
  1292   if(SDL_LOADSO)
  1293     set(SDL_LOADSO_WINDOWS 1)
  1294     file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/windows/*.c)
  1295     set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1296     set(HAVE_SDL_LOADSO TRUE)
  1297   endif()
  1298 
  1299   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  1300   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
  1301 
  1302   if(SDL_VIDEO)
  1303     if(VIDEO_OPENGL)
  1304       set(SDL_VIDEO_OPENGL 1)
  1305       set(SDL_VIDEO_OPENGL_WGL 1)
  1306       set(SDL_VIDEO_RENDER_OGL 1)
  1307       set(HAVE_VIDEO_OPENGL TRUE)
  1308     endif()
  1309 
  1310     if(VIDEO_OPENGLES)
  1311       set(SDL_VIDEO_OPENGL_EGL 1)
  1312       set(SDL_VIDEO_OPENGL_ES2 1)
  1313       set(SDL_VIDEO_RENDER_OGL_ES2 1)
  1314       set(HAVE_VIDEO_OPENGLES TRUE)
  1315     endif()
  1316   endif()
  1317 
  1318   if(SDL_JOYSTICK)
  1319     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/windows/*.c)
  1320     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1321     if(HAVE_DINPUT_H)
  1322       set(SDL_JOYSTICK_DINPUT 1)
  1323       list(APPEND EXTRA_LIBS dinput8)
  1324       if(CMAKE_COMPILER_IS_MINGW)
  1325         list(APPEND EXTRA_LIBS dxerr8)
  1326       elseif (NOT USE_WINSDK_DIRECTX)
  1327         list(APPEND EXTRA_LIBS dxerr)
  1328       endif()
  1329     endif()
  1330     if(HAVE_XINPUT_H)
  1331       set(SDL_JOYSTICK_XINPUT 1)
  1332     endif()
  1333     if(NOT HAVE_DINPUT_H AND NOT HAVE_XINPUT_H)
  1334       set(SDL_JOYSTICK_WINMM 1)
  1335     endif()
  1336     set(HAVE_SDL_JOYSTICK TRUE)
  1337 
  1338     if(SDL_HAPTIC)
  1339       if(HAVE_DINPUT_H OR HAVE_XINPUT_H)
  1340         file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/windows/*.c)
  1341         if(HAVE_DINPUT_H)
  1342           set(SDL_HAPTIC_DINPUT 1)
  1343         endif()
  1344         if(HAVE_XINPUT_H)
  1345           set(SDL_HAPTIC_XINPUT 1)
  1346         endif()
  1347       else()
  1348         file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1349         set(SDL_HAPTIC_DUMMY 1)
  1350       endif()
  1351       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1352       set(HAVE_SDL_HAPTIC TRUE)
  1353     endif()
  1354   endif()
  1355 
  1356   file(GLOB VERSION_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.rc)
  1357   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.c)
  1358   if(MINGW OR CYGWIN)
  1359     list(APPEND EXTRA_LIBS mingw32)
  1360     list(APPEND EXTRA_LDFLAGS "-mwindows")
  1361     set(SDL_CFLAGS "${SDL_CFLAGS} -Dmain=SDL_main")
  1362     list(APPEND SDL_LIBS "-lmingw32" "-lSDL2main" "-mwindows")
  1363   endif()
  1364 elseif(APPLE)
  1365   # TODO: rework this all for proper MacOS X, iOS and Darwin support
  1366 
  1367   # We always need these libs on macOS at the moment.
  1368   # !!! FIXME: we need Carbon for some very old API calls in
  1369   # !!! FIXME:  src/video/cocoa/SDL_cocoakeyboard.c, but we should figure out
  1370   # !!! FIXME:  how to dump those.
  1371   if(NOT IOS)
  1372     set(SDL_FRAMEWORK_COCOA 1)
  1373     set(SDL_FRAMEWORK_CARBON 1)
  1374   endif()
  1375 
  1376   # Requires the darwin file implementation
  1377   if(SDL_FILE)
  1378     file(GLOB EXTRA_SOURCES ${SDL2_SOURCE_DIR}/src/file/cocoa/*.m)
  1379     set(SOURCE_FILES ${EXTRA_SOURCES} ${SOURCE_FILES})
  1380     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1381     set_source_files_properties(${EXTRA_SOURCES} PROPERTIES LANGUAGE C)
  1382     set(HAVE_SDL_FILE TRUE)
  1383     # !!! FIXME: why is COREVIDEO inside this if() block?
  1384     set(SDL_FRAMEWORK_COREVIDEO 1)
  1385   else()
  1386     message_error("SDL_FILE must be enabled to build on MacOS X")
  1387   endif()
  1388 
  1389   if(SDL_AUDIO)
  1390     set(SDL_AUDIO_DRIVER_COREAUDIO 1)
  1391     file(GLOB AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/coreaudio/*.m)
  1392     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1393     set_source_files_properties(${AUDIO_SOURCES} PROPERTIES LANGUAGE C)
  1394     set(SOURCE_FILES ${SOURCE_FILES} ${AUDIO_SOURCES})
  1395     set(HAVE_SDL_AUDIO TRUE)
  1396     set(SDL_FRAMEWORK_COREAUDIO 1)
  1397     set(SDL_FRAMEWORK_AUDIOTOOLBOX 1)
  1398   endif()
  1399 
  1400   if(SDL_JOYSTICK)
  1401     set(SDL_JOYSTICK_IOKIT 1)
  1402     if (IOS)
  1403       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/iphoneos/*.m ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
  1404     else()
  1405       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)
  1406     endif()
  1407     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1408     set(HAVE_SDL_JOYSTICK TRUE)
  1409     set(SDL_FRAMEWORK_IOKIT 1)
  1410     set(SDL_FRAMEWORK_FF 1)
  1411   endif()
  1412 
  1413   if(SDL_HAPTIC)
  1414     set(SDL_HAPTIC_IOKIT 1)
  1415     if (IOS)
  1416       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1417       set(SDL_HAPTIC_DUMMY 1)
  1418     else()
  1419       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/darwin/*.c)
  1420     endif()
  1421     set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1422     set(HAVE_SDL_HAPTIC TRUE)
  1423     set(SDL_FRAMEWORK_IOKIT 1)
  1424     set(SDL_FRAMEWORK_FF 1)
  1425     if(NOT SDL_JOYSTICK)
  1426       message(FATAL_ERROR "SDL_HAPTIC requires SDL_JOYSTICK to be enabled")
  1427     endif()
  1428   endif()
  1429 
  1430   if(SDL_POWER)
  1431     set(SDL_POWER_MACOSX 1)
  1432     if (IOS)
  1433       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/uikit/*.m)
  1434     else()
  1435       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/macosx/*.c)
  1436     endif()
  1437     set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
  1438     set(HAVE_SDL_POWER TRUE)
  1439     set(SDL_FRAMEWORK_IOKIT 1)
  1440   endif()
  1441 
  1442   if(SDL_TIMERS)
  1443     set(SDL_TIMER_UNIX 1)
  1444     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
  1445     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1446     set(HAVE_SDL_TIMERS TRUE)
  1447   endif(SDL_TIMERS)
  1448 
  1449   if(SDL_FILESYSTEM)
  1450     set(SDL_FILESYSTEM_COCOA 1)
  1451     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/cocoa/*.m)
  1452     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1453     set_source_files_properties(${FILESYSTEM_SOURCES} PROPERTIES LANGUAGE C)
  1454     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1455     set(HAVE_SDL_FILESYSTEM TRUE)
  1456   endif()
  1457 
  1458   # Actually load the frameworks at the end so we don't duplicate include.
  1459   if(SDL_FRAMEWORK_COREVIDEO)
  1460     find_library(COREVIDEO CoreVideo)
  1461     list(APPEND EXTRA_LIBS ${COREVIDEO})
  1462   endif()
  1463   if(SDL_FRAMEWORK_COCOA)
  1464     find_library(COCOA_LIBRARY Cocoa)
  1465     list(APPEND EXTRA_LIBS ${COCOA_LIBRARY})
  1466   endif()
  1467   if(SDL_FRAMEWORK_IOKIT)
  1468     find_library(IOKIT IOKit)
  1469     list(APPEND EXTRA_LIBS ${IOKIT})
  1470   endif()
  1471   if(SDL_FRAMEWORK_FF)
  1472     find_library(FORCEFEEDBACK ForceFeedback)
  1473     list(APPEND EXTRA_LIBS ${FORCEFEEDBACK})
  1474   endif()
  1475   if(SDL_FRAMEWORK_CARBON)
  1476     find_library(CARBON_LIBRARY Carbon)
  1477     list(APPEND EXTRA_LIBS ${CARBON_LIBRARY})
  1478   endif()
  1479   if(SDL_FRAMEWORK_COREAUDIO)
  1480     find_library(COREAUDIO CoreAudio)
  1481     list(APPEND EXTRA_LIBS ${COREAUDIO})
  1482   endif()
  1483   if(SDL_FRAMEWORK_AUDIOTOOLBOX)
  1484     find_library(AUDIOTOOLBOX AudioToolbox)
  1485     list(APPEND EXTRA_LIBS ${AUDIOTOOLBOX})
  1486   endif()
  1487 
  1488   # iOS hack needed - http://code.google.com/p/ios-cmake/ ?
  1489   if(SDL_VIDEO)
  1490     if (IOS)
  1491       set(SDL_VIDEO_DRIVER_UIKIT 1)
  1492       file(GLOB UIKITVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/uikit/*.m)
  1493       set(SOURCE_FILES ${SOURCE_FILES} ${UIKITVIDEO_SOURCES})
  1494     else()
  1495       CheckCOCOA()
  1496       if(VIDEO_OPENGL)
  1497         set(SDL_VIDEO_OPENGL 1)
  1498         set(SDL_VIDEO_OPENGL_CGL 1)
  1499         set(SDL_VIDEO_RENDER_OGL 1)
  1500         set(HAVE_VIDEO_OPENGL TRUE)
  1501       endif()
  1502 
  1503       if(VIDEO_OPENGLES)
  1504         set(SDL_VIDEO_OPENGL_EGL 1)
  1505         set(SDL_VIDEO_OPENGL_ES2 1)
  1506         set(SDL_VIDEO_RENDER_OGL_ES2 1)
  1507         set(HAVE_VIDEO_OPENGLES TRUE)
  1508       endif()
  1509     endif()
  1510   endif()
  1511 
  1512   CheckPTHREAD()
  1513 elseif(HAIKU)
  1514   if(SDL_VIDEO)
  1515     set(SDL_VIDEO_DRIVER_HAIKU 1)
  1516     file(GLOB HAIKUVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/haiku/*.c)
  1517     set(SOURCE_FILES ${SOURCE_FILES} ${HAIKUVIDEO_SOURCES})
  1518     set(HAVE_SDL_VIDEO TRUE)
  1519 
  1520     set(SDL_FILESYSTEM_HAIKU 1)
  1521     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/haiku/*.cc)
  1522     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1523     set(HAVE_SDL_FILESYSTEM TRUE)
  1524 
  1525     if(SDL_TIMERS)
  1526       set(SDL_TIMER_HAIKU 1)
  1527       file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/haiku/*.c)
  1528       set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1529       set(HAVE_SDL_TIMERS TRUE)
  1530     endif(SDL_TIMERS)
  1531 
  1532     if(VIDEO_OPENGL)
  1533       # TODO: Use FIND_PACKAGE(OpenGL) instead
  1534       set(SDL_VIDEO_OPENGL 1)
  1535       set(SDL_VIDEO_OPENGL_BGL 1)
  1536       set(SDL_VIDEO_RENDER_OGL 1)
  1537       list(APPEND EXTRA_LIBS GL)
  1538       set(HAVE_VIDEO_OPENGL TRUE)
  1539     endif()
  1540   endif()
  1541 
  1542   CheckPTHREAD()
  1543 endif()
  1544 
  1545 if(VIDEO_VULKAN)
  1546   set(SDL_VIDEO_VULKAN 1)
  1547 endif()
  1548 
  1549 # Dummies
  1550 # configure.in does it differently:
  1551 # if not have X
  1552 #   if enable_X {  SDL_X_DISABLED = 1 }
  1553 #   [add dummy sources]
  1554 # so it always adds a dummy, without checking, if it was actually requested.
  1555 # This leads to missing internal references on building, since the
  1556 # src/X/*.c does not get included.
  1557 if(NOT HAVE_SDL_JOYSTICK)
  1558   set(SDL_JOYSTICK_DISABLED 1)
  1559   if(SDL_JOYSTICK AND NOT APPLE) # results in unresolved symbols on OSX
  1560 
  1561     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/dummy/*.c)
  1562     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1563   endif()
  1564 endif()
  1565 if(NOT HAVE_SDL_HAPTIC)
  1566   set(SDL_HAPTIC_DISABLED 1)
  1567   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1568   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1569 endif()
  1570 if(NOT HAVE_SDL_LOADSO)
  1571   set(SDL_LOADSO_DISABLED 1)
  1572   file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dummy/*.c)
  1573   set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1574 endif()
  1575 if(NOT HAVE_SDL_FILESYSTEM)
  1576   set(SDL_FILESYSTEM_DISABLED 1)
  1577   file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/dummy/*.c)
  1578   set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1579 endif()
  1580 if(NOT HAVE_SDL_SENSORS)
  1581   set(SDL_SENSORS_DISABLED 1)
  1582   file(GLOB SENSORS_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/dummy/*.c)
  1583   set(SOURCE_FILES ${SOURCE_FILES} ${SENSORS_SOURCES})
  1584 endif()
  1585 
  1586 # We always need to have threads and timers around
  1587 if(NOT HAVE_SDL_THREADS)
  1588   set(SDL_THREADS_DISABLED 1)
  1589   file(GLOB THREADS_SOURCES ${SDL2_SOURCE_DIR}/src/thread/generic/*.c)
  1590   set(SOURCE_FILES ${SOURCE_FILES} ${THREADS_SOURCES})
  1591 endif()
  1592 if(NOT HAVE_SDL_TIMERS)
  1593   set(SDL_TIMERS_DISABLED 1)
  1594   file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/dummy/*.c)
  1595   set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1596 endif()
  1597 
  1598 if(NOT SDLMAIN_SOURCES)
  1599   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/dummy/*.c)
  1600 endif()
  1601 
  1602 # Append the -MMD -MT flags
  1603 # if(DEPENDENCY_TRACKING)
  1604 #   if(COMPILER_IS_GNUCC)
  1605 #     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MMD -MT \$@")
  1606 #   endif()
  1607 # endif()
  1608 
  1609 configure_file("${SDL2_SOURCE_DIR}/include/SDL_config.h.cmake"
  1610   "${SDL2_BINARY_DIR}/include/SDL_config.h")
  1611 
  1612 # Prepare the flags and remove duplicates
  1613 if(EXTRA_LDFLAGS)
  1614   list(REMOVE_DUPLICATES EXTRA_LDFLAGS)
  1615 endif()
  1616 if(EXTRA_LIBS)
  1617   list(REMOVE_DUPLICATES EXTRA_LIBS)
  1618 endif()
  1619 if(EXTRA_CFLAGS)
  1620   list(REMOVE_DUPLICATES EXTRA_CFLAGS)
  1621 endif()
  1622 listtostr(EXTRA_CFLAGS _EXTRA_CFLAGS)
  1623 set(EXTRA_CFLAGS ${_EXTRA_CFLAGS})
  1624 
  1625 # Compat helpers for the configuration files
  1626 if(NOT WINDOWS OR CYGWIN)
  1627   # TODO: we need a Windows script, too
  1628   execute_process(COMMAND sh ${SDL2_SOURCE_DIR}/build-scripts/updaterev.sh)
  1629 
  1630   set(prefix ${CMAKE_INSTALL_PREFIX})
  1631   set(exec_prefix "\${prefix}")
  1632   set(libdir "\${exec_prefix}/lib${LIB_SUFFIX}")
  1633   set(bindir "\${exec_prefix}/bin")
  1634   set(includedir "\${prefix}/include")
  1635   if(SDL_STATIC)
  1636     set(ENABLE_STATIC_TRUE "")
  1637     set(ENABLE_STATIC_FALSE "#")
  1638   else()
  1639     set(ENABLE_STATIC_TRUE "#")
  1640     set(ENABLE_STATIC_FALSE "")
  1641   endif()
  1642   if(SDL_SHARED)
  1643     set(ENABLE_SHARED_TRUE "")
  1644     set(ENABLE_SHARED_FALSE "#")
  1645   else()
  1646     set(ENABLE_SHARED_TRUE "#")
  1647     set(ENABLE_SHARED_FALSE "")
  1648   endif()
  1649 
  1650   # Clean up the different lists
  1651   listtostr(EXTRA_LIBS _EXTRA_LIBS "-l")
  1652   set(SDL_STATIC_LIBS ${SDL_LIBS} ${EXTRA_LDFLAGS} ${_EXTRA_LIBS})
  1653   list(REMOVE_DUPLICATES SDL_STATIC_LIBS)
  1654   listtostr(SDL_STATIC_LIBS _SDL_STATIC_LIBS)
  1655   set(SDL_STATIC_LIBS ${_SDL_STATIC_LIBS})
  1656   listtostr(SDL_LIBS _SDL_LIBS)
  1657   set(SDL_LIBS ${_SDL_LIBS})
  1658 
  1659   # MESSAGE(STATUS "SDL_LIBS: ${SDL_LIBS}")
  1660   # MESSAGE(STATUS "SDL_STATIC_LIBS: ${SDL_STATIC_LIBS}")
  1661 
  1662   configure_file("${SDL2_SOURCE_DIR}/sdl2.pc.in"
  1663     "${SDL2_BINARY_DIR}/sdl2.pc" @ONLY)
  1664   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1665     "${SDL2_BINARY_DIR}/sdl2-config")
  1666   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1667     "${SDL2_BINARY_DIR}/sdl2-config" @ONLY)
  1668   configure_file("${SDL2_SOURCE_DIR}/SDL2.spec.in"
  1669     "${SDL2_BINARY_DIR}/SDL2.spec" @ONLY)
  1670 endif()
  1671 
  1672 ##### Info output #####
  1673 message(STATUS "")
  1674 message(STATUS "SDL2 was configured with the following options:")
  1675 message(STATUS "")
  1676 message(STATUS "Platform: ${CMAKE_SYSTEM}")
  1677 message(STATUS "64-bit:   ${ARCH_64}")
  1678 message(STATUS "Compiler: ${CMAKE_C_COMPILER}")
  1679 message(STATUS "")
  1680 message(STATUS "Subsystems:")
  1681 foreach(_SUB ${SDL_SUBSYSTEMS})
  1682   string(TOUPPER ${_SUB} _OPT)
  1683   message_bool_option(${_SUB} SDL_${_OPT})
  1684 endforeach()
  1685 message(STATUS "")
  1686 message(STATUS "Options:")
  1687 list(SORT ALLOPTIONS)
  1688 foreach(_OPT ${ALLOPTIONS})
  1689   # Longest option is VIDEO_X11_XSCREENSAVER = 22 characters
  1690   # Get the padding
  1691   string(LENGTH ${_OPT} _OPTLEN)
  1692   math(EXPR _PADLEN "23 - ${_OPTLEN}")
  1693   string(RANDOM LENGTH ${_PADLEN} ALPHABET " " _PADDING)
  1694   message_tested_option(${_OPT} ${_PADDING})
  1695 endforeach()
  1696 message(STATUS "")
  1697 message(STATUS " CFLAGS:        ${CMAKE_C_FLAGS}")
  1698 message(STATUS " EXTRA_CFLAGS:  ${EXTRA_CFLAGS}")
  1699 message(STATUS " EXTRA_LDFLAGS: ${EXTRA_LDFLAGS}")
  1700 message(STATUS " EXTRA_LIBS:    ${EXTRA_LIBS}")
  1701 message(STATUS "")
  1702 message(STATUS " Build Shared Library: ${SDL_SHARED}")
  1703 message(STATUS " Build Static Library: ${SDL_STATIC}")
  1704 if(SDL_STATIC)
  1705     message(STATUS " Build Static Library with Position Independent Code: ${SDL_STATIC_PIC}")
  1706 endif()
  1707 message(STATUS "")
  1708 if(UNIX)
  1709   message(STATUS "If something was not detected, although the libraries")
  1710   message(STATUS "were installed, then make sure you have set the")
  1711   message(STATUS "CFLAGS and LDFLAGS environment variables correctly.")
  1712   message(STATUS "")
  1713 endif()
  1714 
  1715 # Ensure that the extra cflags are used at compile time
  1716 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
  1717 
  1718 # Always build SDLmain
  1719 add_library(SDL2main STATIC ${SDLMAIN_SOURCES})
  1720 target_include_directories(SDL2main PUBLIC $<INSTALL_INTERFACE:include/SDL2>)
  1721 set(_INSTALL_LIBS "SDL2main")
  1722 if (NOT ANDROID)
  1723   set_target_properties(SDL2main PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1724 endif()
  1725 
  1726 if(SDL_SHARED)
  1727   add_library(SDL2 SHARED ${SOURCE_FILES} ${VERSION_SOURCES})
  1728   if(APPLE)
  1729     set_target_properties(SDL2 PROPERTIES MACOSX_RPATH 1)
  1730   elseif(UNIX AND NOT ANDROID)
  1731     set_target_properties(SDL2 PROPERTIES
  1732       VERSION ${LT_VERSION}
  1733       SOVERSION ${LT_REVISION}
  1734       OUTPUT_NAME "SDL2-${LT_RELEASE}")
  1735   else()
  1736     set_target_properties(SDL2 PROPERTIES
  1737       VERSION ${SDL_VERSION}
  1738       SOVERSION ${LT_REVISION}
  1739       OUTPUT_NAME "SDL2")
  1740   endif()
  1741   if(MSVC AND NOT LIBC)
  1742     # Don't try to link with the default set of libraries.
  1743     set_target_properties(SDL2 PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1744     set_target_properties(SDL2 PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1745     set_target_properties(SDL2 PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1746   endif()
  1747   set(_INSTALL_LIBS "SDL2" ${_INSTALL_LIBS})
  1748   target_link_libraries(SDL2 ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1749   target_include_directories(SDL2 PUBLIC $<INSTALL_INTERFACE:include/SDL2>)
  1750   if (NOT ANDROID)
  1751     set_target_properties(SDL2 PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1752   endif()
  1753 endif()
  1754 
  1755 if(SDL_STATIC)
  1756   set (BUILD_SHARED_LIBS FALSE)
  1757   add_library(SDL2-static STATIC ${SOURCE_FILES})
  1758   if (NOT SDL_SHARED OR NOT WIN32)
  1759     set_target_properties(SDL2-static PROPERTIES OUTPUT_NAME "SDL2")
  1760     # Note: Apparently, OUTPUT_NAME must really be unique; even when
  1761     # CMAKE_IMPORT_LIBRARY_SUFFIX or the like are given. Otherwise
  1762     # the static build may race with the import lib and one will get
  1763     # clobbered, when the suffix is realized via subsequent rename.
  1764   endif()
  1765   set_target_properties(SDL2-static PROPERTIES POSITION_INDEPENDENT_CODE ${SDL_STATIC_PIC})
  1766   if(MSVC AND NOT LIBC)
  1767     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1768     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1769     set_target_properties(SDL2-static PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1770   endif()
  1771   # TODO: Win32 platforms keep the same suffix .lib for import and static
  1772   # libraries - do we need to consider this?
  1773   set(_INSTALL_LIBS "SDL2-static" ${_INSTALL_LIBS})
  1774   target_link_libraries(SDL2-static ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1775   target_include_directories(SDL2-static PUBLIC $<INSTALL_INTERFACE:include/SDL2>)
  1776   if (NOT ANDROID)
  1777     set_target_properties(SDL2-static PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1778   endif()
  1779 endif()
  1780 
  1781 ##### Tests #####
  1782 
  1783 if(SDL_TEST)
  1784   file(GLOB TEST_SOURCES ${SDL2_SOURCE_DIR}/src/test/*.c)
  1785   add_library(SDL2_test STATIC ${TEST_SOURCES})
  1786 
  1787   add_subdirectory(test)
  1788 endif()
  1789 
  1790 ##### Installation targets #####
  1791 install(TARGETS ${_INSTALL_LIBS} EXPORT SDL2Targets
  1792   LIBRARY DESTINATION "lib${LIB_SUFFIX}"
  1793   ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
  1794   RUNTIME DESTINATION bin)
  1795 
  1796 ##### Export files #####
  1797 if (APPLE)
  1798   set(PKG_PREFIX "SDL2.framework/Resources")
  1799 elseif (WINDOWS)
  1800   set(PKG_PREFIX "cmake")
  1801 else ()
  1802   set(PKG_PREFIX "lib/cmake/SDL2")
  1803 endif ()
  1804 
  1805 include(CMakePackageConfigHelpers)
  1806 write_basic_package_version_file("${CMAKE_BINARY_DIR}/SDL2ConfigVersion.cmake"
  1807   VERSION ${SDL_VERSION}
  1808   COMPATIBILITY AnyNewerVersion
  1809 )
  1810 
  1811 install(EXPORT SDL2Targets
  1812   FILE SDL2Targets.cmake
  1813   NAMESPACE SDL2::
  1814   DESTINATION ${PKG_PREFIX}
  1815 )
  1816 install(
  1817   FILES
  1818     ${CMAKE_CURRENT_SOURCE_DIR}/SDL2Config.cmake
  1819     ${CMAKE_BINARY_DIR}/SDL2ConfigVersion.cmake
  1820   DESTINATION ${PKG_PREFIX}
  1821   COMPONENT Devel
  1822 )
  1823 
  1824 file(GLOB INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/*.h)
  1825 file(GLOB BIN_INCLUDE_FILES ${SDL2_BINARY_DIR}/include/*.h)
  1826 foreach(_FNAME ${BIN_INCLUDE_FILES})
  1827   get_filename_component(_INCNAME ${_FNAME} NAME)
  1828   list(REMOVE_ITEM INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/${_INCNAME})
  1829 endforeach()
  1830 list(APPEND INCLUDE_FILES ${BIN_INCLUDE_FILES})
  1831 install(FILES ${INCLUDE_FILES} DESTINATION include/SDL2)
  1832 
  1833 string(TOUPPER "${CMAKE_BUILD_TYPE}" UPPER_BUILD_TYPE)
  1834 if (UPPER_BUILD_TYPE MATCHES DEBUG)
  1835   set(SOPOSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
  1836 else()
  1837   set(SOPOSTFIX "")
  1838 endif()
  1839 
  1840 if(NOT (WINDOWS OR CYGWIN))
  1841   if(SDL_SHARED)
  1842     if (APPLE)
  1843         set(SOEXT "dylib")
  1844     else()
  1845         set(SOEXT "so")
  1846     endif()
  1847     if(NOT ANDROID)
  1848         install(CODE "
  1849           execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink
  1850             \"libSDL2-2.0${SOPOSTFIX}.${SOEXT}\" \"libSDL2.${SOEXT}\")"
  1851             WORKING_DIR "${SDL2_BINARY_DIR}")
  1852         install(FILES ${SDL2_BINARY_DIR}/libSDL2.${SOEXT} DESTINATION "lib${LIB_SUFFIX}")
  1853     endif()
  1854   endif()
  1855   if(FREEBSD)
  1856     # FreeBSD uses ${PREFIX}/libdata/pkgconfig
  1857     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc DESTINATION "libdata/pkgconfig")
  1858   else()
  1859     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc
  1860       DESTINATION "lib${LIB_SUFFIX}/pkgconfig")
  1861   endif()
  1862   install(PROGRAMS ${SDL2_BINARY_DIR}/sdl2-config DESTINATION bin)
  1863   # TODO: what about the .spec file? Is it only needed for RPM creation?
  1864   install(FILES "${SDL2_SOURCE_DIR}/sdl2.m4" DESTINATION "${CMAKE_INSTALL_FULL_DATAROOTDIR}/aclocal")
  1865 endif()
  1866 
  1867 ##### Uninstall target #####
  1868 
  1869 if(NOT TARGET uninstall)
  1870   configure_file(
  1871       "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
  1872       "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
  1873       IMMEDIATE @ONLY)
  1874 
  1875   add_custom_target(uninstall
  1876       COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
  1877 endif()