CMakeLists.txt

endif()

if(UNIX OR APPLE OR HAIKU OR RISCOS)
  CheckO_CLOEXEC()
endif()

if(SDL_JOYSTICK)
  if(SDL_VIRTUAL_JOYSTICK)
    set(HAVE_VIRTUAL_JOYSTICK TRUE)
    set(SDL_JOYSTICK_VIRTUAL 1)
    file(GLOB JOYSTICK_VIRTUAL_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/virtual/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_VIRTUAL_SOURCES})
  endif()
endif()

if(SDL_VIDEO)
  if(SDL_DUMMYVIDEO)
    set(SDL_VIDEO_DRIVER_DUMMY 1)
    file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})
    set(HAVE_DUMMYVIDEO TRUE)
    set(HAVE_SDL_VIDEO TRUE)
  endif()
  if(SDL_OFFSCREEN)
    set(SDL_VIDEO_DRIVER_OFFSCREEN 1)
    file(GLOB VIDEO_OFFSCREEN_SOURCES ${SDL2_SOURCE_DIR}/src/video/offscreen/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_OFFSCREEN_SOURCES})
    set(HAVE_OFFSCREEN TRUE)
    set(HAVE_SDL_VIDEO TRUE)
  endif()
endif()

# Platform-specific options and settings
if(ANDROID)
  file(GLOB ANDROID_CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/android/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES} ${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c)

  file(GLOB ANDROID_MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/android/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_MISC_SOURCES})
  set(HAVE_SDL_MISC TRUE)

  # SDL_spinlock.c Needs to be compiled in ARM mode.
  # There seems to be no better way currently to set the ARM mode.
  # see: https://issuetracker.google.com/issues/62264618
  # Another option would be to set ARM mode to all compiled files
  check_c_compiler_flag(-marm HAVE_ARM_MODE)
  if(HAVE_ARM_MODE)
    set_source_files_properties(${SDL2_SOURCE_DIR}/src/atomic/SDL_spinlock.c PROPERTIES COMPILE_FLAGS -marm)
  endif()

  file(GLOB ANDROID_MAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/android/*.c)
  set(SDLMAIN_SOURCES ${SDLMAIN_SOURCES} ${ANDROID_MAIN_SOURCES})

  if(SDL_AUDIO)
    set(SDL_AUDIO_DRIVER_ANDROID 1)
    file(GLOB ANDROID_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_AUDIO_SOURCES})

    set(SDL_AUDIO_DRIVER_OPENSLES 1)
    file(GLOB OPENSLES_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/openslES/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${OPENSLES_AUDIO_SOURCES})

    find_library(ANDROID_OPENSLES_LIBRARY OpenSLES)
    list(APPEND EXTRA_LIBS ${ANDROID_DL_LIBRARY} ${ANDROID_OPENSLES_LIBRARY})

    set(SDL_AUDIO_DRIVER_AAUDIO 1)
    file(GLOB AAUDIO_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/aaudio/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${AAUDIO_AUDIO_SOURCES})

    set(HAVE_SDL_AUDIO TRUE)
  endif()
  if(SDL_FILESYSTEM)
    set(SDL_FILESYSTEM_ANDROID 1)
    file(GLOB ANDROID_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_FILESYSTEM_SOURCES})
    set(HAVE_SDL_FILESYSTEM TRUE)
  endif()
  if(SDL_HAPTIC)
    set(SDL_HAPTIC_ANDROID 1)
    file(GLOB ANDROID_HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_HAPTIC_SOURCES})
    set(HAVE_SDL_HAPTIC TRUE)
  endif()
  if(SDL_HIDAPI)
    CheckHIDAPI()
  endif()
  if(SDL_JOYSTICK)
    set(SDL_JOYSTICK_ANDROID 1)
    file(GLOB ANDROID_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/android/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_JOYSTICK_SOURCES})
    set(HAVE_SDL_JOYSTICK TRUE)
  endif()
  if(SDL_LOADSO)
    set(SDL_LOADSO_DLOPEN 1)
    file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dlopen/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
    set(HAVE_SDL_LOADSO TRUE)
  endif()
  if(SDL_POWER)
    set(SDL_POWER_ANDROID 1)
    file(GLOB ANDROID_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_POWER_SOURCES})
    set(HAVE_SDL_POWER TRUE)
  endif()
  if(SDL_LOCALE)
    file(GLOB ANDROID_LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_LOCALE_SOURCES})
    set(HAVE_SDL_LOCALE TRUE)
  endif()
  if(SDL_TIMERS)
    set(SDL_TIMER_UNIX 1)
    file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
    set(HAVE_SDL_TIMERS TRUE)
  endif()
  if(SDL_SENSOR)
    set(SDL_SENSOR_ANDROID 1)
    set(HAVE_SDL_SENSORS TRUE)
    file(GLOB ANDROID_SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_SENSOR_SOURCES})
  endif()
  if(SDL_VIDEO)
    set(SDL_VIDEO_DRIVER_ANDROID 1)
    file(GLOB ANDROID_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/android/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_VIDEO_SOURCES})
    set(HAVE_SDL_VIDEO TRUE)

    # Core stuff
    # find_library(ANDROID_DL_LIBRARY dl)
    # FIXME failing dlopen https://github.com/android-ndk/ndk/issues/929
    find_library(ANDROID_DL_LIBRARY NAMES libdl.so dl)
    find_library(ANDROID_LOG_LIBRARY log)
    find_library(ANDROID_LIBRARY_LIBRARY android)
    list(APPEND EXTRA_LIBS ${ANDROID_DL_LIBRARY} ${ANDROID_LOG_LIBRARY} ${ANDROID_LIBRARY_LIBRARY})
    target_compile_definitions(sdl-build-options INTERFACE "-DGL_GLEXT_PROTOTYPES")

    #enable gles
    if(SDL_OPENGLES)
      set(SDL_VIDEO_OPENGL_EGL 1)
      set(HAVE_OPENGLES TRUE)
      set(SDL_VIDEO_OPENGL_ES 1)
      set(SDL_VIDEO_RENDER_OGL_ES 1)
      set(SDL_VIDEO_OPENGL_ES2 1)
      set(SDL_VIDEO_RENDER_OGL_ES2 1)

      find_library(OpenGLES1_LIBRARY GLESv1_CM)
      find_library(OpenGLES2_LIBRARY GLESv2)
      list(APPEND EXTRA_LIBS ${OpenGLES1_LIBRARY} ${OpenGLES2_LIBRARY})
    endif()

    CHECK_C_SOURCE_COMPILES("
    #if defined(__ARM_ARCH) && __ARM_ARCH < 7
    #error Vulkan doesn't work on this configuration
    #endif
    int main(void) {
        return 0;
    }
    " VULKAN_PASSED_ANDROID_CHECKS)
    if(NOT VULKAN_PASSED_ANDROID_CHECKS)
      set(SDL_VULKAN OFF)
      message(STATUS "Vulkan doesn't work on this configuration")
    endif()
  endif()

  CheckPTHREAD()

elseif(EMSCRIPTEN)
  # Hide noisy warnings that intend to aid mostly during initial stages of porting a new
  # project. Uncomment at will for verbose cross-compiling -I/../ path info.
  target_compile_options(sdl-build-options INTERFACE "-Wno-warn-absolute-paths")
  if(SDL_AUDIO)
    set(SDL_AUDIO_DRIVER_EMSCRIPTEN 1)
    file(GLOB EM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${EM_AUDIO_SOURCES})
    set(HAVE_SDL_AUDIO TRUE)
  endif()
  if(SDL_FILESYSTEM)
    set(SDL_FILESYSTEM_EMSCRIPTEN 1)
    file(GLOB EM_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${EM_FILESYSTEM_SOURCES})
    set(HAVE_SDL_FILESYSTEM TRUE)
  endif()
  if(SDL_JOYSTICK)
    set(SDL_JOYSTICK_EMSCRIPTEN 1)
    file(GLOB EM_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${EM_JOYSTICK_SOURCES})
    set(HAVE_SDL_JOYSTICK TRUE)
  endif()
  if(SDL_POWER)
    set(SDL_POWER_EMSCRIPTEN 1)
    file(GLOB EM_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${EM_POWER_SOURCES})
    set(HAVE_SDL_POWER TRUE)
  endif()
  if(SDL_LOCALE)
    file(GLOB LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${LOCALE_SOURCES})
    set(HAVE_SDL_LOCALE TRUE)
  endif()
  if(SDL_TIMERS)
    set(SDL_TIMER_UNIX 1)
    file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
    set(HAVE_SDL_TIMERS TRUE)

    if(SDL_CLOCK_GETTIME)
      set(HAVE_CLOCK_GETTIME 1)
    endif()
  endif()
  if(SDL_VIDEO)
    set(SDL_VIDEO_DRIVER_EMSCRIPTEN 1)
    file(GLOB EM_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/emscripten/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${EM_VIDEO_SOURCES})
    set(HAVE_SDL_VIDEO TRUE)

    #enable gles
    if(SDL_OPENGLES)
      set(SDL_VIDEO_OPENGL_EGL 1)
      set(HAVE_OPENGLES TRUE)
      set(SDL_VIDEO_OPENGL_ES2 1)
      set(SDL_VIDEO_RENDER_OGL_ES2 1)
    endif()
  endif()

  CheckPTHREAD()

elseif(UNIX AND NOT APPLE AND NOT ANDROID AND NOT RISCOS AND NOT HAIKU)
  if(SDL_AUDIO)
    if(SYSV5 OR SOLARIS OR HPUX)
        set(SDL_AUDIO_DRIVER_SUNAUDIO 1)
        file(GLOB SUN_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sun/*.c)
        set(SOURCE_FILES ${SOURCE_FILES} ${SUN_AUDIO_SOURCES})
        set(HAVE_SDL_AUDIO TRUE)
    elseif(NETBSD)
        set(SDL_AUDIO_DRIVER_NETBSD 1)
        file(GLOB NETBSD_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/netbsd/*.c)
        set(SOURCE_FILES ${SOURCE_FILES} ${NETBSD_AUDIO_SOURCES})
        set(HAVE_SDL_AUDIO TRUE)
    elseif(AIX)
        set(SDL_AUDIO_DRIVER_PAUDIO 1)
        file(GLOB AIX_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/paudio/*.c)
        set(SOURCE_FILES ${SOURCE_FILES} ${AIX_AUDIO_SOURCES})
        set(HAVE_SDL_AUDIO TRUE)
    endif()
    CheckOSS()
    CheckALSA()
    CheckJACK()
    CheckPipewire()
    CheckPulseAudio()
    CheckESD()
    CheckARTS()
    CheckNAS()
    CheckSNDIO()
    CheckFusionSound()
    CheckLibSampleRate()
  endif()

  if(SDL_VIDEO)
    # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
    CheckRPI()
    CheckX11()
    CheckDirectFB()
    # Need to check for EGL first because KMSDRM and Wayland depends on it.
    CheckEGL()
    CheckKMSDRM()
    CheckGLX()
    CheckOpenGL()
    CheckOpenGLES()
    CheckWayland()
    CheckVivante()
  endif()

  if(UNIX)
    file(GLOB CORE_UNIX_SOURCES ${SDL2_SOURCE_DIR}/src/core/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${CORE_UNIX_SOURCES})

    check_c_source_compiles("
        #include <linux/input.h>
        #ifndef EVIOCGNAME
        #error EVIOCGNAME() ioctl not available
        #endif
        int main(int argc, char** argv) {}" HAVE_INPUT_EVENTS)

    if(LINUX)
      check_c_source_compiles("
          #include <linux/kd.h>
          #include <linux/keyboard.h>

          int main(int argc, char **argv)
          {
              struct kbentry kbe;
              kbe.kb_table = KG_CTRL;
              ioctl(0, KDGKBENT, &kbe);
          }" HAVE_INPUT_KD)
    elseif(FREEBSD)
      check_c_source_compiles("
          #include <sys/kbio.h>
          #include <sys/ioctl.h>

          int main(int argc, char **argv)
          {
              accentmap_t accTable;
              ioctl(0, KDENABIO, 1);
          }" HAVE_INPUT_KBIO)
    endif()

    if(HAVE_INPUT_EVENTS)
      set(SDL_INPUT_LINUXEV 1)
    endif()

    if(SDL_HAPTIC AND HAVE_INPUT_EVENTS)
      set(SDL_HAPTIC_LINUX 1)
      file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/linux/*.c)
      set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
      set(HAVE_SDL_HAPTIC TRUE)
    endif()

    if(HAVE_INPUT_KD)
      set(SDL_INPUT_LINUXKD 1)
    endif()

    if(HAVE_INPUT_KBIO)
      set(SDL_INPUT_FBSDKBIO 1)
    endif()

    check_include_file("libudev.h" HAVE_LIBUDEV_H)
    check_include_file("sys/inotify.h" HAVE_SYS_INOTIFY_H)
    check_symbol_exists(inotify_init "sys/inotify.h" HAVE_INOTIFY_INIT)
    check_symbol_exists(inotify_init1 "sys/inotify.h" HAVE_INOTIFY_INIT1)

    if(HAVE_SYS_INOTIFY_H AND HAVE_INOTIFY_INIT)
      set(HAVE_INOTIFY 1)
    endif()

    if(PKG_CONFIG_FOUND)
      pkg_search_module(DBUS dbus-1 dbus)
      if(DBUS_FOUND)
        set(HAVE_DBUS_DBUS_H TRUE)
        target_include_directories(sdl-build-options INTERFACE "${DBUS_INCLUDE_DIRS}")
        list(APPEND EXTRA_LIBS ${DBUS_LIBRARIES})
        # Fcitx need only dbus.
        set(HAVE_FCITX TRUE)
      endif()

      pkg_search_module(IBUS ibus-1.0 ibus)
      if(IBUS_FOUND)
        set(HAVE_IBUS_IBUS_H TRUE)
        target_include_directories(sdl-build-options INTERFACE "${IBUS_INCLUDE_DIRS}")
        list(APPEND EXTRA_LIBS ${IBUS_LIBRARIES})
      endif()

      if (HAVE_IBUS_IBUS_H OR HAVE_FCITX)
        set(SDL_USE_IME 1)
      endif()

      if(FREEBSD AND NOT HAVE_INOTIFY)
        pkg_search_module(INOTIFY libinotify)
        if(INOTIFY_FOUND)
          set(HAVE_INOTIFY 1)
          target_include_directories(sdl-build-options INTERFACE "${INOTIFY_INCLUDE_DIRS}")
          list(APPEND EXTRA_LIBS ${INOTIFY_LIBRARIES})
        endif()
      endif()

      if(HAVE_LIBUNWIND_H)
        # We've already found the header, so REQUIRE the lib to be present
        pkg_search_module(UNWIND REQUIRED libunwind)
        pkg_search_module(UNWIND_GENERIC REQUIRED libunwind-generic)
        list(APPEND EXTRA_LIBS ${UNWIND_LIBRARIES} ${UNWIND_GENERIC_LIBRARIES})
      endif()
    endif()

    if(HAVE_DBUS_DBUS_H)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_dbus.c")
    endif()

    if(SDL_USE_IME)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_ime.c")
    endif()

    if(HAVE_IBUS_IBUS_H)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_ibus.c")
    endif()

    if(HAVE_FCITX)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_fcitx.c")
    endif()

    if(HAVE_LIBUDEV_H)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_udev.c")
    endif()

    if(HAVE_INPUT_EVENTS)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_evdev.c")
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_evdev_kbd.c")
    endif()

    if(HAVE_INPUT_KBIO)
      set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/freebsd/SDL_evdev_kbd_freebsd.c")
    endif()

    # Always compiled for Linux, unconditionally:
    set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_evdev_capabilities.c")
    set(SOURCE_FILES ${SOURCE_FILES} "${SDL2_SOURCE_DIR}/src/core/linux/SDL_threadprio.c")

    # src/core/unix/*.c is included in a generic if(UNIX) section, elsewhere.
  endif()

  if(SDL_HIDAPI)
    CheckHIDAPI()
  endif()

  if(SDL_JOYSTICK)
    if(FREEBSD OR NETBSD OR OPENBSD OR BSDI)
      CheckUSBHID()
    endif()
    if(LINUX AND NOT ANDROID)
      set(SDL_JOYSTICK_LINUX 1)
      file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
      set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
      set(HAVE_SDL_JOYSTICK TRUE)
    endif()
  endif()

  CheckPTHREAD()

  if(SDL_CLOCK_GETTIME)
    check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
    if(FOUND_CLOCK_GETTIME)
      list(APPEND EXTRA_LIBS rt)
      set(HAVE_CLOCK_GETTIME 1)
    else()
      check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
      if(FOUND_CLOCK_GETTIME)
        set(HAVE_CLOCK_GETTIME 1)
      endif()
    endif()
  endif()

  check_include_file(linux/version.h HAVE_LINUX_VERSION_H)
  if(HAVE_LINUX_VERSION_H)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_LINUX_VERSION_H")
  endif()

  file(GLOB MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/unix/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${MISC_SOURCES})
  set(HAVE_SDL_MISC TRUE)

  if(SDL_POWER)
    if(LINUX)
      set(SDL_POWER_LINUX 1)
      file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/linux/*.c)
      set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
      set(HAVE_SDL_POWER TRUE)
    endif()
  endif()

  if(SDL_LOCALE)
    file(GLOB LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${LOCALE_SOURCES})
    set(HAVE_SDL_LOCALE TRUE)
  endif()

  if(SDL_FILESYSTEM)
    set(SDL_FILESYSTEM_UNIX 1)
    file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
    set(HAVE_SDL_FILESYSTEM TRUE)
  endif()

  if(SDL_TIMERS)
    set(SDL_TIMER_UNIX 1)
    file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
    set(HAVE_SDL_TIMERS TRUE)
  endif()

  set(SDL_RLD_FLAGS "")
  if(SDL_RPATH AND SDL_SHARED)
    if(BSDI OR FREEBSD OR LINUX OR NETBSD)
      set(CMAKE_REQUIRED_FLAGS "-Wl,--enable-new-dtags")
      check_c_compiler_flag("" HAVE_ENABLE_NEW_DTAGS)
      set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
      if(HAVE_ENABLE_NEW_DTAGS)
        set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir} -Wl,--enable-new-dtags")
      else()
        set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir}")
      endif()
    elseif(SOLARIS)
      set(SDL_RLD_FLAGS "-R\${libdir}")
    endif()
    set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
    set(HAVE_RPATH TRUE)
  endif()

elseif(WINDOWS)
  find_program(WINDRES windres)

  check_c_source_compiles("
    #include <windows.h>
    int main(int argc, char **argv) { }" HAVE_WIN32_CC)

  file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})

  if(WINDOWS_STORE)
    file(GLOB WINRT_SOURCE_FILES ${SDL2_SOURCE_DIR}/src/core/winrt/*.c ${SDL2_SOURCE_DIR}/src/core/winrt/*.cpp)
    list(APPEND SOURCE_FILES ${WINRT_SOURCE_FILES})
  endif()

  if(MSVC AND NOT SDL_LIBC)
    # Prevent codegen that would use the VC runtime libraries.
    set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/GS-")
    if(NOT ARCH_64)
      set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/arch:SSE")
    endif()
  endif()

  if(WINDOWS_STORE)
    file(GLOB WINRT_MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/winrt/*.cpp)
    set(SOURCE_FILES ${SOURCE_FILES} ${WINRT_MISC_SOURCES})
  else()
  file(GLOB MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/windows/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${MISC_SOURCES})
  endif()
  set(HAVE_SDL_MISC TRUE)

  # Check for DirectX
  if(SDL_DIRECTX)
    if(DEFINED MSVC_VERSION AND NOT ${MSVC_VERSION} LESS 1700)
        set(USE_WINSDK_DIRECTX TRUE)
    endif()
    if(NOT MINGW AND NOT USE_WINSDK_DIRECTX)
      if("$ENV{DXSDK_DIR}" STREQUAL "")
        message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")
      endif()
      set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")
    endif()

    check_include_file(d3d9.h HAVE_D3D_H)
    check_include_file(d3d11_1.h HAVE_D3D11_H)
    check_include_file(ddraw.h HAVE_DDRAW_H)
    check_include_file(dsound.h HAVE_DSOUND_H)
    check_include_file(dinput.h HAVE_DINPUT_H)
    if(WINDOWS_STORE OR VCPKG_TARGET_TRIPLET MATCHES "arm-windows")
      set(HAVE_DINPUT_H 0)
    endif()
    check_include_file(dxgi.h HAVE_DXGI_H)
    if(HAVE_D3D_H OR HAVE_D3D11_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H)
      set(HAVE_DIRECTX TRUE)
      if(NOT MINGW AND NOT USE_WINSDK_DIRECTX)
      # TODO: change $ENV{DXSDL_DIR} to get the path from the include checks
        target_link_directories(sdl-build-options INTERFACE "$$ENV{DXSDK_DIR}\\lib\\${PROCESSOR_ARCH}")
        target_include_directories(sdl-build-options INTERFACE "$ENV{DXSDK_DIR}\\Include")
      endif()
    endif()
    set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
  endif()

  if(SDL_XINPUT)
    # xinput.h may need windows.h, but does not include it itself.
    check_c_source_compiles("
      #include <windows.h>
      #include <xinput.h>
      int main(int argc, char **argv) { }" HAVE_XINPUT_H)
    check_c_source_compiles("
      #include <windows.h>
      #include <xinput.h>
      XINPUT_GAMEPAD_EX x1;
      int main(int argc, char **argv) { }" HAVE_XINPUT_GAMEPAD_EX)
    check_c_source_compiles("
      #include <windows.h>
      #include <xinput.h>
      XINPUT_STATE_EX s1;
      int main(int argc, char **argv) { }" HAVE_XINPUT_STATE_EX)
    check_c_source_compiles("
      #define COBJMACROS
      #include <windows.gaming.input.h>
      __x_ABI_CWindows_CGaming_CInput_CIGamepadStatics2 *s2;
      int main(int argc, char **argv) { }" HAVE_WINDOWS_GAMING_INPUT_H)
  endif()

  # headers needed elsewhere
  check_include_file(tpcshrd.h HAVE_TPCSHRD_H)
  check_include_file(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
  check_include_file(audioclient.h HAVE_AUDIOCLIENT_H)
  check_include_file(sensorsapi.h HAVE_SENSORSAPI_H)

  if(SDL_AUDIO)
    if(NOT WINDOWS_STORE)
    set(SDL_AUDIO_DRIVER_WINMM 1)
    file(GLOB WINMM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/winmm/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${WINMM_AUDIO_SOURCES})
    endif()
    set(HAVE_SDL_AUDIO TRUE)

    if(HAVE_DSOUND_H AND NOT WINDOWS_STORE)
      set(SDL_AUDIO_DRIVER_DSOUND 1)
      file(GLOB DSOUND_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/directsound/*.c)
      set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})
    endif()

    if(SDL_WASAPI AND HAVE_AUDIOCLIENT_H AND HAVE_MMDEVICEAPI_H)
      set(SDL_AUDIO_DRIVER_WASAPI 1)
      set(HAVE_WASAPI TRUE)
      file(GLOB WASAPI_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/wasapi/*.c)
      if(WINDOWS_STORE)
        list(APPEND WASAPI_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/wasapi/SDL_wasapi_winrt.cpp)
      endif()
      set(SOURCE_FILES ${SOURCE_FILES} ${WASAPI_AUDIO_SOURCES})
    endif()
  endif()

  if(SDL_VIDEO)
    # requires SDL_LOADSO on Windows (IME, DX, etc.)
    if(NOT SDL_LOADSO)
      message_error("SDL_VIDEO requires SDL_LOADSO, which is not enabled")
    endif()
    if(WINDOWS_STORE)
      set(SDL_VIDEO_DRIVER_WINRT 1)
      file(GLOB WIN_VIDEO_SOURCES
        ${SDL2_SOURCE_DIR}/src/video/winrt/*.c
        ${SDL2_SOURCE_DIR}/src/video/winrt/*.cpp
        ${SDL2_SOURCE_DIR}/src/render/direct3d11/*.cpp
        )
    else()
    set(SDL_VIDEO_DRIVER_WINDOWS 1)
    file(GLOB WIN_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/windows/*.c)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})

    if(SDL_RENDER_D3D AND HAVE_D3D_H AND NOT WINDOWS_STORE)
      set(SDL_VIDEO_RENDER_D3D 1)
      set(HAVE_RENDER_D3D TRUE)
    endif()
    if(SDL_RENDER_D3D AND HAVE_D3D11_H)
      set(SDL_VIDEO_RENDER_D3D11 1)
      set(HAVE_RENDER_D3D TRUE)
    endif()
    set(HAVE_SDL_VIDEO TRUE)
  endif()

  if(SDL_THREADS)
    set(SDL_THREAD_GENERIC_COND_SUFFIX 1)
    set(SDL_THREAD_WINDOWS 1)
    set(SOURCE_FILES ${SOURCE_FILES}
      ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syscond.c
      ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syscond_cv.c
      ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_sysmutex.c
      ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syssem.c
      ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systhread.c
      ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systls.c)
    set(HAVE_SDL_THREADS TRUE)
  endif()

  if(SDL_SENSOR AND HAVE_SENSORSAPI_H AND NOT WINDOWS_STORE)
    set(SDL_SENSOR_WINDOWS 1)
    set(HAVE_SDL_SENSORS TRUE)
    file(GLOB WINDOWS_SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/windows/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${WINDOWS_SENSOR_SOURCES})
  endif()

  if(SDL_POWER)
    if(WINDOWS_STORE)
      set(SDL_POWER_WINRT 1)
      set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/winrt/SDL_syspower.cpp)
    else()
      set(SDL_POWER_WINDOWS 1)
      set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/windows/SDL_syspower.c)
      set(HAVE_SDL_POWER TRUE)
    endif()
  endif()

  if(SDL_LOCALE)
    if(WINDOWS_STORE)
      file(GLOB LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/winrt/*.c)
    else()
      file(GLOB LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/windows/*.c)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${LOCALE_SOURCES})
    set(HAVE_SDL_LOCALE TRUE)
  endif()

  if(SDL_FILESYSTEM)
    set(SDL_FILESYSTEM_WINDOWS 1)
    if(WINDOWS_STORE)
      file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/winrt/*.cpp)
    else()
      file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/windows/*.c)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
    set(HAVE_SDL_FILESYSTEM TRUE)
  endif()

  # Libraries for Win32 native and MinGW
  if(NOT WINDOWS_STORE)
    list(APPEND EXTRA_LIBS user32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 setupapi shell32)
  endif()

  if(WINDOWS_STORE)
    list(APPEND EXTRA_LIBS
      -nodefaultlib:vccorlib$<$<CONFIG:Debug>:d>
      -nodefaultlib:msvcrt$<$<CONFIG:Debug>:d>
      vccorlib$<$<CONFIG:Debug>:d>.lib
      msvcrt$<$<CONFIG:Debug>:d>.lib
    )
  endif()

  if(SDL_TIMERS)
    set(SDL_TIMER_WINDOWS 1)
    file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/windows/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
    set(HAVE_SDL_TIMERS TRUE)
  endif()

  if(SDL_LOADSO)
    set(SDL_LOADSO_WINDOWS 1)
    file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/windows/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
    set(HAVE_SDL_LOADSO TRUE)
  endif()

  file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})

  if(SDL_VIDEO)
    if(SDL_OPENGL AND NOT WINDOWS_STORE)
      set(SDL_VIDEO_OPENGL 1)
      set(SDL_VIDEO_OPENGL_WGL 1)
      set(SDL_VIDEO_RENDER_OGL 1)
      set(HAVE_OPENGL TRUE)
    endif()

    if(SDL_OPENGLES)
      set(SDL_VIDEO_OPENGL_EGL 1)
      set(SDL_VIDEO_OPENGL_ES2 1)
      set(SDL_VIDEO_RENDER_OGL_ES2 1)
      set(HAVE_OPENGLES TRUE)
    endif()
  endif()

  if(SDL_HIDAPI)
    CheckHIDAPI()
  endif()

  if(SDL_JOYSTICK)
    file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/windows/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})

    if(NOT WINDOWS_STORE)
      set(SDL_JOYSTICK_RAWINPUT 1)
    endif()
    if(HAVE_DINPUT_H)
      set(SDL_JOYSTICK_DINPUT 1)
      list(APPEND EXTRA_LIBS dinput8)
    endif()
    if(HAVE_XINPUT_H)
      set(SDL_JOYSTICK_XINPUT 1)
      set(HAVE_XINPUT TRUE)
      if(HAVE_WINDOWS_GAMING_INPUT_H)
        set(SDL_JOYSTICK_WGI 1)
      endif()
    endif()
    set(HAVE_SDL_JOYSTICK TRUE)

    if(SDL_HAPTIC)
      if(HAVE_DINPUT_H OR HAVE_XINPUT_H)
        file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/windows/*.c)
        if(HAVE_DINPUT_H)
          set(SDL_HAPTIC_DINPUT 1)
        endif()
        if(HAVE_XINPUT_H)
          set(SDL_HAPTIC_XINPUT 1)
        endif()
      else()
        file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
        set(SDL_HAPTIC_DUMMY 1)
      endif()
      set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
      set(HAVE_SDL_HAPTIC TRUE)
    endif()
  endif()

  file(GLOB VERSION_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.rc)
  file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.c)
  if(MINGW OR CYGWIN)
    list(APPEND EXTRA_LIBS mingw32)
    list(APPEND EXTRA_LDFLAGS "-mwindows")
    set(SDL_CFLAGS "${SDL_CFLAGS} -Dmain=SDL_main")
    list(APPEND SDL_LIBS "-lmingw32" "-lSDL2main" "-mwindows")
  endif()

elseif(APPLE)
  # TODO: rework this all for proper MacOS X, iOS and Darwin support

  # We always need these libs on macOS at the moment.
  # !!! FIXME: we need Carbon for some very old API calls in
  # !!! FIXME:  src/video/cocoa/SDL_cocoakeyboard.c, but we should figure out
  # !!! FIXME:  how to dump those.
  if(DARWIN OR MACOSX)
    set(SDL_FRAMEWORK_COCOA 1)
    set(SDL_FRAMEWORK_CARBON 1)
  endif()
  set(SDL_FRAMEWORK_FOUNDATION 1)
  set(SDL_FRAMEWORK_COREVIDEO 1)

  # Requires the darwin file implementation
  if(SDL_FILE)
    file(GLOB EXTRA_SOURCES ${SDL2_SOURCE_DIR}/src/file/cocoa/*.m)
    set(SOURCE_FILES ${EXTRA_SOURCES} ${SOURCE_FILES})
    # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
    set_source_files_properties(${EXTRA_SOURCES} PROPERTIES LANGUAGE C)
    set(HAVE_SDL_FILE TRUE)
  else()
    message_error("SDL_FILE must be enabled to build on MacOS X")
  endif()

  if(IOS OR TVOS)
    file(GLOB MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/ios/*.m)
    file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/uikit/*.c)
  else()
    file(GLOB MISC_SOURCES ${SDL2_SOURCE_DIR}/src/misc/macosx/*.m)
  endif()
  set(SOURCE_FILES ${SOURCE_FILES} ${MISC_SOURCES})
  set(HAVE_SDL_MISC TRUE)

  if(SDL_AUDIO)
    set(SDL_AUDIO_DRIVER_COREAUDIO 1)
    file(GLOB AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/coreaudio/*.m)
    # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
    set_source_files_properties(${AUDIO_SOURCES} PROPERTIES LANGUAGE C)
    set(SOURCE_FILES ${SOURCE_FILES} ${AUDIO_SOURCES})
    set(HAVE_SDL_AUDIO TRUE)
    set(SDL_FRAMEWORK_COREAUDIO 1)
    set(SDL_FRAMEWORK_AUDIOTOOLBOX 1)
    set(SDL_FRAMEWORK_AVFOUNDATION 1)
  endif()

  if(SDL_HIDAPI)
    CheckHIDAPI()
  endif()

  if(SDL_JOYSTICK)
    file(GLOB MFI_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/iphoneos/*.m)
    if(IOS OR TVOS)
      file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
      set(SDL_JOYSTICK_MFI 1)
      if(IOS)
        set(SDL_FRAMEWORK_COREMOTION 1)
      endif()
      set(SDL_FRAMEWORK_GAMECONTROLLER 1)
      set(SDL_FRAMEWORK_COREHAPTICS 1)
      set(HAVE_SDL_SENSORS 1)
    else()
      file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)
      set_source_files_properties(${MFI_JOYSTICK_SOURCES} PROPERTIES COMPILE_FLAGS -fobjc-weak)
      check_objc_source_compiles("
          #include <AvailabilityMacros.h>
          #include <TargetConditionals.h>
          #import <Foundation/Foundation.h>
          #import <GameController/GameController.h>
          #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
          #error GameController framework doesn't work on this configuration
          #endif
          #if TARGET_CPU_X86
          #error GameController framework doesn't work on this configuration
          #endif
          int main() {}" HAVE_FRAMEWORK_GAMECONTROLLER)
      check_objc_source_compiles("
          #include <AvailabilityMacros.h>
          #include <TargetConditionals.h>
          #import <Foundation/Foundation.h>
          #import <CoreHaptics/CoreHaptics.h>
          int main() {}" HAVE_FRAMEWORK_COREHAPTICS)
      if(HAVE_FRAMEWORK_GAMECONTROLLER AND HAVE_FRAMEWORK_COREHAPTICS)
        # Only enable MFI if we also have CoreHaptics to ensure rumble works
        set(SDL_JOYSTICK_MFI 1)
        set(SDL_FRAMEWORK_GAMECONTROLLER 1)
        set(SDL_FRAMEWORK_COREHAPTICS 1)
      endif()
      set(SDL_JOYSTICK_IOKIT 1)
      set(SDL_FRAMEWORK_IOKIT 1)
      set(SDL_FRAMEWORK_FF 1)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES} ${MFI_JOYSTICK_SOURCES})
    set(HAVE_SDL_JOYSTICK TRUE)
  endif()

  if(SDL_HAPTIC)
    if (IOS OR TVOS)
      file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
      set(SDL_HAPTIC_DUMMY 1)
    else()
      file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/darwin/*.c)
      set(SDL_HAPTIC_IOKIT 1)
      set(SDL_FRAMEWORK_IOKIT 1)
      set(SDL_FRAMEWORK_FF 1)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
    set(HAVE_SDL_HAPTIC TRUE)
    if(NOT SDL_JOYSTICK)
      message(FATAL_ERROR "SDL_HAPTIC requires SDL_JOYSTICK to be enabled")
    endif()
  endif()

  if(SDL_POWER)
    if (IOS OR TVOS)
      file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/uikit/*.m)
      set(SDL_POWER_UIKIT 1)
    else()
      file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/macosx/*.c)
      set(SDL_POWER_MACOSX 1)
      set(SDL_FRAMEWORK_IOKIT 1)
    endif()
    set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
    set(HAVE_SDL_POWER TRUE)
  endif()

  if(SDL_LOCALE)
    file(GLOB LOCALE_SOURCES ${SDL2_SOURCE_DIR}/src/locale/macosx/*.m)
    set(SOURCE_FILES ${SOURCE_FILES} ${LOCALE_SOURCES})
    set(HAVE_SDL_LOCALE TRUE)
  endif()

  if(SDL_TIMERS)
    set(SDL_TIMER_UNIX 1)
    file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
    set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
    set(HAVE_SDL_TIMERS TRUE)
  endif(SDL_TIMERS)

  if(SDL_FILESYSTEM)
    set(SDL_FILESYSTEM_COCOA 1)
    file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/cocoa/*.m)
    # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
    set_source_files_properties(${FILESYSTEM_SOURCES} PROPERTIES LANGUAGE C)
    set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
    set(HAVE_SDL_FILESYSTEM TRUE)
  endif()

  if(SDL_SENSOR)
    if(IOS)
      set(SDL_SENSOR_COREMOTION 1)
      set(HAVE_SDL_SENSORS TRUE)
      file(GLOB SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/coremotion/*.m)
      set(SOURCE_FILES ${SOURCE_FILES} ${SENSOR_SOURCES})
    endif()
  endif()

  # iOS hack needed - http://code.google.com/p/ios-cmake/ ?
  if(SDL_VIDEO)
    if (IOS OR TVOS)
      set(SDL_VIDEO_DRIVER_UIKIT 1)
      set(SDL_FRAMEWORK_COREGRAPHICS 1)
      set(SDL_FRAMEWORK_QUARTZCORE 1)
      set(SDL_FRAMEWORK_UIKIT 1)
      set(SDL_IPHONE_KEYBOARD 1)
      set(SDL_IPHONE_LAUNCHSCREEN 1)
      file(GLOB UIKITVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/uikit/*.m)
      set(SOURCE_FILES ${SOURCE_FILES} ${UIKITVIDEO_SOURCES})
    else()
      CheckCOCOA()
      if(SDL_OPENGL)
        set(SDL_VIDEO_OPENGL 1)
        set(SDL_VIDEO_OPENGL_CGL 1)
        set(SDL_VIDEO_RENDER_OGL 1)
        set(HAVE_OPENGL TRUE)
      endif()
    endif()

    if(SDL_OPENGLES)
      if(IOS OR TVOS)
        set(SDL_FRAMEWORK_OPENGLES 1)
        set(SDL_VIDEO_OPENGL_ES 1)
        set(SDL_VIDEO_RENDER_OGL_ES 1)
      else()
        set(SDL_VIDEO_OPENGL_EGL 1)
      endif()
      set(SDL_VIDEO_OPENGL_ES2 1)
      set(SDL_VIDEO_RENDER_OGL_ES2 1)
      set(HAVE_OPENGLES TRUE)
    endif()

    if(SDL_VULKAN OR SDL_METAL OR SDL_RENDER_METAL)
      set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
      set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -ObjC")
      check_c_source_compiles("
        #include <AvailabilityMacros.h>
        #import <Metal/Metal.h>
        #import <QuartzCore/CAMetalLayer.h>

        #if (!TARGET_CPU_X86_64 && !TARGET_CPU_ARM64)
        #error Metal doesn't work on this configuration
        #endif
        int main(void) {
            return 0;
        }
        " HAVE_FRAMEWORK_METAL)
      set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
      if(HAVE_FRAMEWORK_METAL)