CMakeLists.txt
author Sam Lantinga <slouken@libsdl.org>
Wed, 12 Jun 2019 10:35:47 -0700
changeset 12847 baae9331abc0
parent 12804 1a330416800d
child 12869 2b56cef46971
permissions -rw-r--r--
The hat index passed to the application should be zero-based with no holes
     1 if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
     2   message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL source code and call cmake from there")
     3 endif()
     4 
     5 cmake_minimum_required(VERSION 2.8.11)
     6 project(SDL2 C CXX)
     7 
     8 # !!! FIXME: this should probably do "MACOSX_RPATH ON" as a target property
     9 # !!! FIXME:  for the SDL2 shared library (so you get an
    10 # !!! FIXME:  install_name ("soname") of "@rpath/libSDL-whatever.dylib"
    11 # !!! FIXME:  instead of "/usr/local/lib/libSDL-whatever.dylib"), but I'm
    12 # !!! FIXME:  punting for now and leaving the existing behavior. Until this
    13 # !!! FIXME:  properly resolved, this line silences a warning in CMake 3.0+.
    14 # !!! FIXME:  remove it and this comment entirely once the problem is
    15 # !!! FIXME:  properly resolved.
    16 #cmake_policy(SET CMP0042 OLD)
    17 
    18 include(CheckFunctionExists)
    19 include(CheckLibraryExists)
    20 include(CheckIncludeFiles)
    21 include(CheckIncludeFile)
    22 include(CheckSymbolExists)
    23 include(CheckCSourceCompiles)
    24 include(CheckCSourceRuns)
    25 include(CheckCCompilerFlag)
    26 include(CheckTypeSize)
    27 include(CheckStructHasMember)
    28 include(CMakeDependentOption)
    29 include(FindPkgConfig)
    30 include(GNUInstallDirs)
    31 set(CMAKE_MODULE_PATH "${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 9)
    46 set(SDL_INTERFACE_AGE 0)
    47 set(SDL_BINARY_AGE 9)
    48 set(SDL_VERSION "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}.${SDL_MICRO_VERSION}")
    49 # the following should match the versions in Xcode project file:
    50 set(DYLIB_CURRENT_VERSION 10.0.0)
    51 set(DYLIB_COMPATIBILITY_VERSION 1.0.0)
    52 
    53 # Set defaults preventing destination file conflicts
    54 set(SDL_CMAKE_DEBUG_POSTFIX "d"
    55     CACHE STRING "Name suffix for debug builds")
    56 
    57 mark_as_advanced(CMAKE_IMPORT_LIBRARY_SUFFIX SDL_CMAKE_DEBUG_POSTFIX)
    58 
    59 # Calculate a libtool-like version number
    60 math(EXPR LT_CURRENT "${SDL_MICRO_VERSION} - ${SDL_INTERFACE_AGE}")
    61 math(EXPR LT_AGE "${SDL_BINARY_AGE} - ${SDL_INTERFACE_AGE}")
    62 math(EXPR LT_MAJOR "${LT_CURRENT}- ${LT_AGE}")
    63 set(LT_REVISION "${SDL_INTERFACE_AGE}")
    64 set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")
    65 set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}")
    66 
    67 #message(STATUS "${LT_VERSION} :: ${LT_AGE} :: ${LT_REVISION} :: ${LT_CURRENT} :: ${LT_RELEASE}")
    68 
    69 # General settings & flags
    70 set(LIBRARY_OUTPUT_DIRECTORY "build")
    71 # Check for 64 or 32 bit
    72 set(SIZEOF_VOIDP ${CMAKE_SIZEOF_VOID_P})
    73 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
    74   set(ARCH_64 TRUE)
    75   set(PROCESSOR_ARCH "x64")
    76 else()
    77   set(ARCH_64 FALSE)
    78   set(PROCESSOR_ARCH "x86")
    79 endif()
    80 set(LIBNAME SDL2)
    81 if(NOT LIBTYPE)
    82   set(LIBTYPE SHARED)
    83 endif()
    84 
    85 # Get the platform
    86 if(WIN32)
    87   if(NOT WINDOWS)
    88     set(WINDOWS TRUE)
    89   endif()
    90 elseif(UNIX AND NOT APPLE)
    91   if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")
    92     set(LINUX TRUE)
    93   elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD.*")
    94     set(FREEBSD TRUE)
    95   elseif(CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")
    96     set(NETBSD TRUE)
    97   elseif(CMAKE_SYSTEM_NAME MATCHES "kOpenBSD.*|OpenBSD.*")
    98     set(OPENBSD TRUE)
    99   elseif(CMAKE_SYSTEM_NAME MATCHES ".*GNU.*")
   100     set(GNU TRUE)
   101   elseif(CMAKE_SYSTEM_NAME MATCHES ".*BSDI.*")
   102     set(BSDI TRUE)
   103   elseif(CMAKE_SYSTEM_NAME MATCHES "DragonFly.*|FreeBSD")
   104     set(FREEBSD TRUE)
   105   elseif(CMAKE_SYSTEM_NAME MATCHES "SYSV5.*")
   106     set(SYSV5 TRUE)
   107   elseif(CMAKE_SYSTEM_NAME MATCHES "Solaris.*")
   108     set(SOLARIS TRUE)
   109   elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX.*")
   110     set(HPUX TRUE)
   111   elseif(CMAKE_SYSTEM_NAME MATCHES "AIX.*")
   112     set(AIX TRUE)
   113   elseif(CMAKE_SYSTEM_NAME MATCHES "Minix.*")
   114     set(MINIX TRUE)
   115   endif()
   116 elseif(APPLE)
   117   if(CMAKE_SYSTEM_NAME MATCHES ".*Darwin.*")
   118     set(DARWIN TRUE)
   119   elseif(CMAKE_SYSTEM_NAME MATCHES ".*MacOS.*")
   120     set(MACOSX TRUE)
   121   endif()
   122   # TODO: iOS?
   123 elseif(CMAKE_SYSTEM_NAME MATCHES "BeOS.*")
   124   message_error("BeOS support has been removed as of SDL 2.0.2.")
   125 elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku.*")
   126   set(HAIKU TRUE)
   127 endif()
   128 
   129 # Don't mistake osx for unix
   130 if(UNIX AND NOT APPLE)
   131   set(UNIX_SYS ON)
   132 else()
   133   set(UNIX_SYS OFF)
   134 endif()
   135 
   136 if(UNIX OR APPLE)
   137   set(UNIX_OR_MAC_SYS ON)
   138 else()
   139   set(UNIX_OR_MAC_SYS OFF)
   140 endif()
   141 
   142 if (UNIX_OR_MAC_SYS AND NOT EMSCRIPTEN) # JavaScript does not yet have threading support, so disable pthreads when building for Emscripten.
   143   set(SDL_PTHREADS_ENABLED_BY_DEFAULT ON)
   144 else()
   145   set(SDL_PTHREADS_ENABLED_BY_DEFAULT OFF)
   146 endif()
   147 
   148 # Default option knobs
   149 if(APPLE OR ARCH_64)
   150   if(NOT "${CMAKE_OSX_ARCHITECTURES}" MATCHES "arm")
   151     set(OPT_DEF_SSEMATH ON)
   152   endif()
   153 endif()
   154 if(UNIX OR MINGW OR MSYS)
   155   set(OPT_DEF_LIBC ON)
   156 endif()
   157 
   158 # Compiler info
   159 if(CMAKE_COMPILER_IS_GNUCC)
   160   set(USE_GCC TRUE)
   161   set(OPT_DEF_ASM TRUE)
   162 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
   163   set(USE_CLANG TRUE)
   164   set(OPT_DEF_ASM TRUE)
   165 elseif(MSVC_VERSION GREATER 1400) # VisualStudio 8.0+
   166   set(OPT_DEF_ASM TRUE)
   167   #set(CMAKE_C_FLAGS "/ZI /WX- /
   168 else()
   169   set(OPT_DEF_ASM FALSE)
   170 endif()
   171 
   172 if(USE_GCC OR USE_CLANG)
   173   set(OPT_DEF_GCC_ATOMICS ON)
   174 endif()
   175 
   176 # Default flags, if not set otherwise
   177 if("$ENV{CFLAGS}" STREQUAL "")
   178   if(CMAKE_BUILD_TYPE STREQUAL "")
   179     if(USE_GCC OR USE_CLANG)
   180       set(CMAKE_C_FLAGS "-g -O3")
   181     endif()
   182   endif()
   183 else()
   184   set(CMAKE_C_FLAGS "$ENV{CFLAGS}")
   185   list(APPEND EXTRA_CFLAGS "$ENV{CFLAGS}")
   186 endif()
   187 if(NOT ("$ENV{CFLAGS}" STREQUAL "")) # Hackish, but does the trick on Win32
   188   list(APPEND EXTRA_LDFLAGS "$ENV{LDFLAGS}")
   189 endif()
   190 
   191 if(MSVC)
   192   option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
   193   if(FORCE_STATIC_VCRT)
   194     foreach(flag_var
   195         CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
   196         CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
   197       if(${flag_var} MATCHES "/MD")
   198         string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
   199       endif()
   200     endforeach()
   201   endif()
   202 
   203   # Make sure /RTC1 is disabled, otherwise it will use functions from the CRT
   204   foreach(flag_var
   205       CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
   206       CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
   207     string(REGEX REPLACE "/RTC(su|[1su])" "" ${flag_var} "${${flag_var}}")
   208   endforeach(flag_var)
   209 endif()
   210 
   211 # Those are used for pkg-config and friends, so that the SDL2.pc, sdl2-config,
   212 # etc. are created correctly.
   213 set(SDL_LIBS "-lSDL2")
   214 set(SDL_CFLAGS "")
   215 
   216 # When building shared lib for Windows with MinGW,
   217 # avoid the DLL having a "lib" prefix
   218 if(WINDOWS)
   219   set(CMAKE_SHARED_LIBRARY_PREFIX "")
   220 endif()
   221 
   222 # Emscripten toolchain has a nonempty default value for this, and the checks
   223 # in this file need to change that, so remember the original value, and
   224 # restore back to that afterwards. For check_function_exists() to work in
   225 # Emscripten, this value must be at its default value.
   226 set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
   227 
   228 if(CYGWIN)
   229   # We build SDL on cygwin without the UNIX emulation layer
   230   include_directories("-I/usr/include/mingw")
   231   set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mno-cygwin")
   232   check_c_source_compiles("int main(int argc, char **argv) {}"
   233     HAVE_GCC_NO_CYGWIN)
   234   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   235   if(HAVE_GCC_NO_CYGWIN)
   236     list(APPEND EXTRA_LDFLAGS "-mno-cygwin")
   237     list(APPEND SDL_LIBS "-mno-cygwin")
   238   endif()
   239   set(SDL_CFLAGS "${SDL_CFLAGS} -I/usr/include/mingw")
   240 endif()
   241 
   242 add_definitions(-DUSING_GENERATED_CONFIG_H)
   243 # General includes
   244 include_directories(${SDL2_BINARY_DIR}/include ${SDL2_SOURCE_DIR}/include)
   245 if(USE_GCC OR USE_CLANG)
   246   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -idirafter ${SDL2_SOURCE_DIR}/src/video/khronos")
   247 else()
   248   include_directories(${SDL2_SOURCE_DIR}/src/video/khronos)
   249 endif()
   250 
   251 # All these ENABLED_BY_DEFAULT vars will default to ON if not specified, so
   252 #  you only need to have a platform override them if they are disabling.
   253 set(OPT_DEF_ASM TRUE)
   254 if(EMSCRIPTEN)
   255   # Set up default values for the currently supported set of subsystems:
   256   # Emscripten/Javascript does not have assembly support, a dynamic library
   257   # loading architecture, low-level CPU inspection or multithreading.
   258   set(OPT_DEF_ASM FALSE)
   259   set(SDL_SHARED_ENABLED_BY_DEFAULT OFF)
   260   set(SDL_ATOMIC_ENABLED_BY_DEFAULT OFF)
   261   set(SDL_THREADS_ENABLED_BY_DEFAULT OFF)
   262   set(SDL_LOADSO_ENABLED_BY_DEFAULT OFF)
   263   set(SDL_CPUINFO_ENABLED_BY_DEFAULT OFF)
   264   set(SDL_DLOPEN_ENABLED_BY_DEFAULT OFF)
   265 endif()
   266 
   267 # When defined, respect CMake's BUILD_SHARED_LIBS setting:
   268 set(SDL_STATIC_ENABLED_BY_DEFAULT ON)
   269 if (NOT DEFINED SDL_SHARED_ENABLED_BY_DEFAULT)
   270   # ...unless decided already (as for EMSCRIPTEN)
   271 
   272   set(SDL_SHARED_ENABLED_BY_DEFAULT OFF)
   273 
   274   if (NOT DEFINED BUILD_SHARED_LIBS)
   275     # No preference? Build both, just like the AC/AM configure
   276     set(SDL_SHARED_ENABLED_BY_DEFAULT ON)
   277 
   278   elseif (BUILD_SHARED_LIBS)
   279     # In this case, we assume the user wants a shared lib and don't build
   280     # the static one
   281     set(SDL_SHARED_ENABLED_BY_DEFAULT ON)
   282     set(SDL_STATIC_ENABLED_BY_DEFAULT OFF)
   283   endif()
   284 endif()
   285 
   286 set(SDL_SUBSYSTEMS
   287     Atomic Audio Video Render Events Joystick Haptic Power Threads Timers
   288     File Loadso CPUinfo Filesystem Dlopen Sensor)
   289 foreach(_SUB ${SDL_SUBSYSTEMS})
   290   string(TOUPPER ${_SUB} _OPT)
   291   if (NOT DEFINED SDL_${_OPT}_ENABLED_BY_DEFAULT)
   292     set(SDL_${_OPT}_ENABLED_BY_DEFAULT ON)
   293   endif()
   294   option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ${SDL_${_OPT}_ENABLED_BY_DEFAULT})
   295 endforeach()
   296 
   297 option_string(ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
   298 #set_option(DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)
   299 set_option(LIBC                "Use the system C library" ${OPT_DEF_LIBC})
   300 set_option(GCC_ATOMICS         "Use gcc builtin atomics" ${OPT_DEF_GCC_ATOMICS})
   301 set_option(ASSEMBLY            "Enable assembly routines" ${OPT_DEF_ASM})
   302 set_option(SSEMATH             "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})
   303 set_option(MMX                 "Use MMX assembly routines" ${OPT_DEF_ASM})
   304 set_option(3DNOW               "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})
   305 set_option(SSE                 "Use SSE assembly routines" ${OPT_DEF_ASM})
   306 set_option(SSE2                "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})
   307 set_option(SSE3                "Use SSE3 assembly routines" ${OPT_DEF_SSEMATH})
   308 set_option(ALTIVEC             "Use Altivec assembly routines" ${OPT_DEF_ASM})
   309 set_option(DISKAUDIO           "Support the disk writer audio driver" ON)
   310 set_option(DUMMYAUDIO          "Support the dummy audio driver" ON)
   311 set_option(VIDEO_DIRECTFB      "Use DirectFB video driver" OFF)
   312 dep_option(DIRECTFB_SHARED     "Dynamically load directfb support" ON "VIDEO_DIRECTFB" OFF)
   313 set_option(VIDEO_DUMMY         "Use dummy video driver" ON)
   314 set_option(VIDEO_OPENGL        "Include OpenGL support" ON)
   315 set_option(VIDEO_OPENGLES      "Include OpenGL ES support" ON)
   316 set_option(PTHREADS            "Use POSIX threads for multi-threading" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
   317 dep_option(PTHREADS_SEM        "Use pthread semaphores" ON "PTHREADS" OFF)
   318 set_option(SDL_DLOPEN          "Use dlopen for shared object loading" ${SDL_DLOPEN_ENABLED_BY_DEFAULT})
   319 set_option(OSS                 "Support the OSS audio API" ${UNIX_SYS})
   320 set_option(ALSA                "Support the ALSA audio API" ${UNIX_SYS})
   321 dep_option(ALSA_SHARED         "Dynamically load ALSA audio support" ON "ALSA" OFF)
   322 set_option(JACK                "Support the JACK audio API" ${UNIX_SYS})
   323 dep_option(JACK_SHARED         "Dynamically load JACK audio support" ON "JACK" OFF)
   324 set_option(ESD                 "Support the Enlightened Sound Daemon" ${UNIX_SYS})
   325 dep_option(ESD_SHARED          "Dynamically load ESD audio support" ON "ESD" OFF)
   326 set_option(PULSEAUDIO          "Use PulseAudio" ${UNIX_SYS})
   327 dep_option(PULSEAUDIO_SHARED   "Dynamically load PulseAudio support" ON "PULSEAUDIO" OFF)
   328 set_option(ARTS                "Support the Analog Real Time Synthesizer" ${UNIX_SYS})
   329 dep_option(ARTS_SHARED         "Dynamically load aRts audio support" ON "ARTS" OFF)
   330 set_option(NAS                 "Support the NAS audio API" ${UNIX_SYS})
   331 set_option(NAS_SHARED          "Dynamically load NAS audio API" ${UNIX_SYS})
   332 set_option(SNDIO               "Support the sndio audio API" ${UNIX_SYS})
   333 set_option(FUSIONSOUND         "Use FusionSound audio driver" OFF)
   334 dep_option(FUSIONSOUND_SHARED  "Dynamically load fusionsound audio support" ON "FUSIONSOUND" OFF)
   335 set_option(LIBSAMPLERATE       "Use libsamplerate for audio rate conversion" ${UNIX_SYS})
   336 dep_option(LIBSAMPLERATE_SHARED "Dynamically load libsamplerate" ON "LIBSAMPLERATE" OFF)
   337 set_option(RPATH               "Use an rpath when linking SDL" ${UNIX_SYS})
   338 set_option(CLOCK_GETTIME       "Use clock_gettime() instead of gettimeofday()" OFF)
   339 set_option(INPUT_TSLIB         "Use the Touchscreen library for input" ${UNIX_SYS})
   340 set_option(VIDEO_X11           "Use X11 video driver" ${UNIX_SYS})
   341 set_option(VIDEO_WAYLAND       "Use Wayland video driver" ${UNIX_SYS})
   342 dep_option(WAYLAND_SHARED      "Dynamically load Wayland support" ON "VIDEO_WAYLAND" OFF)
   343 dep_option(VIDEO_WAYLAND_QT_TOUCH  "QtWayland server support for Wayland video driver" ON "VIDEO_WAYLAND" OFF)
   344 set_option(VIDEO_RPI           "Use Raspberry Pi video driver" ${UNIX_SYS})
   345 dep_option(X11_SHARED          "Dynamically load X11 support" ON "VIDEO_X11" OFF)
   346 set(SDL_X11_OPTIONS Xcursor Xinerama XInput Xrandr Xscrnsaver XShape Xvm)
   347 foreach(_SUB ${SDL_X11_OPTIONS})
   348   string(TOUPPER "VIDEO_X11_${_SUB}" _OPT)
   349   dep_option(${_OPT}           "Enable ${_SUB} support" ON "VIDEO_X11" OFF)
   350 endforeach()
   351 set_option(VIDEO_COCOA         "Use Cocoa video driver" ${APPLE})
   352 set_option(DIRECTX             "Use DirectX for Windows audio/video" ${WINDOWS})
   353 set_option(WASAPI              "Use the Windows WASAPI audio driver" ${WINDOWS})
   354 set_option(RENDER_D3D          "Enable the Direct3D render driver" ${WINDOWS})
   355 set_option(VIDEO_VIVANTE       "Use Vivante EGL video driver" ${UNIX_SYS})
   356 dep_option(VIDEO_VULKAN        "Enable Vulkan support" ON "ANDROID OR APPLE OR LINUX OR WINDOWS" OFF)
   357 set_option(VIDEO_KMSDRM        "Use KMS DRM video driver" ${UNIX_SYS})
   358 dep_option(KMSDRM_SHARED       "Dynamically load KMS DRM support" ON "VIDEO_KMSDRM" OFF)
   359 option_string(BACKGROUNDING_SIGNAL "number to use for magic backgrounding signal or 'OFF'" "OFF")
   360 option_string(FOREGROUNDING_SIGNAL "number to use for magic foregrounding signal or 'OFF'" "OFF")
   361 
   362 set(SDL_SHARED ${SDL_SHARED_ENABLED_BY_DEFAULT} CACHE BOOL "Build a shared version of the library")
   363 set(SDL_STATIC ${SDL_STATIC_ENABLED_BY_DEFAULT} CACHE BOOL "Build a static version of the library")
   364 
   365 dep_option(SDL_STATIC_PIC      "Static version of the library should be built with Position Independent Code" OFF "SDL_STATIC" OFF)
   366 set_option(SDL_TEST            "Build the test directory" OFF)
   367 
   368 # General source files
   369 file(GLOB SOURCE_FILES
   370   ${SDL2_SOURCE_DIR}/src/*.c
   371   ${SDL2_SOURCE_DIR}/src/atomic/*.c
   372   ${SDL2_SOURCE_DIR}/src/audio/*.c
   373   ${SDL2_SOURCE_DIR}/src/cpuinfo/*.c
   374   ${SDL2_SOURCE_DIR}/src/dynapi/*.c
   375   ${SDL2_SOURCE_DIR}/src/events/*.c
   376   ${SDL2_SOURCE_DIR}/src/file/*.c
   377   ${SDL2_SOURCE_DIR}/src/libm/*.c
   378   ${SDL2_SOURCE_DIR}/src/render/*.c
   379   ${SDL2_SOURCE_DIR}/src/render/*/*.c
   380   ${SDL2_SOURCE_DIR}/src/stdlib/*.c
   381   ${SDL2_SOURCE_DIR}/src/thread/*.c
   382   ${SDL2_SOURCE_DIR}/src/timer/*.c
   383   ${SDL2_SOURCE_DIR}/src/video/*.c
   384   ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)
   385 
   386 
   387 if(ASSERTIONS STREQUAL "auto")
   388   # Do nada - use optimization settings to determine the assertion level
   389 elseif(ASSERTIONS STREQUAL "disabled")
   390   set(SDL_DEFAULT_ASSERT_LEVEL 0)
   391 elseif(ASSERTIONS STREQUAL "release")
   392   set(SDL_DEFAULT_ASSERT_LEVEL 1)
   393 elseif(ASSERTIONS STREQUAL "enabled")
   394   set(SDL_DEFAULT_ASSERT_LEVEL 2)
   395 elseif(ASSERTIONS STREQUAL "paranoid")
   396   set(SDL_DEFAULT_ASSERT_LEVEL 3)
   397 else()
   398   message_error("unknown assertion level")
   399 endif()
   400 set(HAVE_ASSERTIONS ${ASSERTIONS})
   401 
   402 if(NOT BACKGROUNDING_SIGNAL STREQUAL "OFF")
   403   add_definitions("-DSDL_BACKGROUNDING_SIGNAL=${BACKGROUNDING_SIGNAL}")
   404 endif()
   405 
   406 if(NOT FOREGROUNDING_SIGNAL STREQUAL "OFF")
   407   add_definitions("-DSDL_FOREGROUNDING_SIGNAL=${FOREGROUNDING_SIGNAL}")
   408 endif()
   409 
   410 # Compiler option evaluation
   411 if(USE_GCC OR USE_CLANG)
   412   # Check for -Wall first, so later things can override pieces of it.
   413   check_c_compiler_flag(-Wall HAVE_GCC_WALL)
   414   if(HAVE_GCC_WALL)
   415     list(APPEND EXTRA_CFLAGS "-Wall")
   416     if(HAIKU)
   417       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-multichar")
   418     endif()
   419   endif()
   420 
   421   check_c_compiler_flag(-fno-strict-aliasing HAVE_GCC_NO_STRICT_ALIASING)
   422   if(HAVE_GCC_NO_STRICT_ALIASING)
   423     list(APPEND EXTRA_CFLAGS "-fno-strict-aliasing")
   424   endif()
   425 
   426   check_c_compiler_flag(-Wdeclaration-after-statement HAVE_GCC_WDECLARATION_AFTER_STATEMENT)
   427   if(HAVE_GCC_WDECLARATION_AFTER_STATEMENT)
   428     check_c_compiler_flag(-Werror=declaration-after-statement HAVE_GCC_WERROR_DECLARATION_AFTER_STATEMENT)
   429     if(HAVE_GCC_WERROR_DECLARATION_AFTER_STATEMENT)
   430       list(APPEND EXTRA_CFLAGS "-Werror=declaration-after-statement")
   431     endif()
   432     list(APPEND EXTRA_CFLAGS "-Wdeclaration-after-statement")
   433   endif()
   434 
   435   if(DEPENDENCY_TRACKING)
   436     check_c_source_compiles("
   437         #if !defined(__GNUC__) || __GNUC__ < 3
   438         #error Dependency tracking requires GCC 3.0 or newer
   439         #endif
   440         int main(int argc, char **argv) { }" HAVE_DEPENDENCY_TRACKING)
   441   endif()
   442 
   443   if(GCC_ATOMICS)
   444     check_c_source_compiles("int main(int argc, char **argv) {
   445         int a;
   446         void *x, *y, *z;
   447         __sync_lock_test_and_set(&a, 4);
   448         __sync_lock_test_and_set(&x, y);
   449         __sync_fetch_and_add(&a, 1);
   450         __sync_bool_compare_and_swap(&a, 5, 10);
   451         __sync_bool_compare_and_swap(&x, y, z); }" HAVE_GCC_ATOMICS)
   452     if(NOT HAVE_GCC_ATOMICS)
   453       check_c_source_compiles("int main(int argc, char **argv) {
   454           int a;
   455           __sync_lock_test_and_set(&a, 1);
   456           __sync_lock_release(&a); }" HAVE_GCC_SYNC_LOCK_TEST_AND_SET)
   457     endif()
   458   endif()
   459 
   460   set(CMAKE_REQUIRED_FLAGS "-mpreferred-stack-boundary=2")
   461   check_c_source_compiles("int x = 0; int main(int argc, char **argv) {}"
   462     HAVE_GCC_PREFERRED_STACK_BOUNDARY)
   463   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   464 
   465   set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden -Werror")
   466   check_c_source_compiles("
   467       #if !defined(__GNUC__) || __GNUC__ < 4
   468       #error SDL only uses visibility attributes in GCC 4 or newer
   469       #endif
   470       int main(int argc, char **argv) {}" HAVE_GCC_FVISIBILITY)
   471   if(HAVE_GCC_FVISIBILITY)
   472     list(APPEND EXTRA_CFLAGS "-fvisibility=hidden")
   473   endif()
   474   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   475 
   476   check_c_compiler_flag(-Wshadow HAVE_GCC_WSHADOW)
   477   if(HAVE_GCC_WSHADOW)
   478     list(APPEND EXTRA_CFLAGS "-Wshadow")
   479   endif()
   480 
   481   if(APPLE)
   482     list(APPEND EXTRA_LDFLAGS "-Wl,-undefined,error")
   483     list(APPEND EXTRA_LDFLAGS "-Wl,-compatibility_version,${DYLIB_COMPATIBILITY_VERSION}")
   484     list(APPEND EXTRA_LDFLAGS "-Wl,-current_version,${DYLIB_CURRENT_VERSION}")
   485   else()
   486     set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
   487     check_c_compiler_flag("" HAVE_NO_UNDEFINED)
   488     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   489     if(HAVE_NO_UNDEFINED)
   490       list(APPEND EXTRA_LDFLAGS "-Wl,--no-undefined")
   491     endif()
   492   endif()
   493 endif()
   494 
   495 if(ASSEMBLY)
   496   if(USE_GCC OR USE_CLANG)
   497     set(SDL_ASSEMBLY_ROUTINES 1)
   498     # TODO: Those all seem to be quite GCC specific - needs to be
   499     # reworked for better compiler support
   500     set(HAVE_ASSEMBLY TRUE)
   501     if(MMX)
   502       set(CMAKE_REQUIRED_FLAGS "-mmmx")
   503       check_c_source_compiles("
   504           #ifdef __MINGW32__
   505           #include <_mingw.h>
   506           #ifdef __MINGW64_VERSION_MAJOR
   507           #include <intrin.h>
   508           #else
   509           #include <mmintrin.h>
   510           #endif
   511           #else
   512           #include <mmintrin.h>
   513           #endif
   514           #ifndef __MMX__
   515           #error Assembler CPP flag not enabled
   516           #endif
   517           int main(int argc, char **argv) { }" HAVE_MMX)
   518       if(HAVE_MMX)
   519         list(APPEND EXTRA_CFLAGS "-mmmx")
   520       endif()
   521       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   522     endif()
   523 
   524     if(3DNOW)
   525       set(CMAKE_REQUIRED_FLAGS "-m3dnow")
   526       check_c_source_compiles("
   527           #include <mm3dnow.h>
   528           #ifndef __3dNOW__
   529           #error Assembler CPP flag not enabled
   530           #endif
   531           int main(int argc, char **argv) {
   532             void *p = 0;
   533             _m_prefetch(p);
   534           }" HAVE_3DNOW)
   535       if(HAVE_3DNOW)
   536         list(APPEND EXTRA_CFLAGS "-m3dnow")
   537       endif()
   538       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   539     endif()
   540 
   541     if(SSE)
   542       set(CMAKE_REQUIRED_FLAGS "-msse")
   543       check_c_source_compiles("
   544           #ifdef __MINGW32__
   545           #include <_mingw.h>
   546           #ifdef __MINGW64_VERSION_MAJOR
   547           #include <intrin.h>
   548           #else
   549           #include <xmmintrin.h>
   550           #endif
   551           #else
   552           #include <xmmintrin.h>
   553           #endif
   554           #ifndef __SSE__
   555           #error Assembler CPP flag not enabled
   556           #endif
   557           int main(int argc, char **argv) { }" HAVE_SSE)
   558       if(HAVE_SSE)
   559         list(APPEND EXTRA_CFLAGS "-msse")
   560       endif()
   561       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   562     endif()
   563 
   564     if(SSE2)
   565       set(CMAKE_REQUIRED_FLAGS "-msse2")
   566       check_c_source_compiles("
   567           #ifdef __MINGW32__
   568           #include <_mingw.h>
   569           #ifdef __MINGW64_VERSION_MAJOR
   570           #include <intrin.h>
   571           #else
   572           #include <emmintrin.h>
   573           #endif
   574           #else
   575           #include <emmintrin.h>
   576           #endif
   577           #ifndef __SSE2__
   578           #error Assembler CPP flag not enabled
   579           #endif
   580           int main(int argc, char **argv) { }" HAVE_SSE2)
   581       if(HAVE_SSE2)
   582         list(APPEND EXTRA_CFLAGS "-msse2")
   583       endif()
   584       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   585     endif()
   586 
   587     if(SSE3)
   588       set(CMAKE_REQUIRED_FLAGS "-msse3")
   589       check_c_source_compiles("
   590           #ifdef __MINGW32__
   591           #include <_mingw.h>
   592           #ifdef __MINGW64_VERSION_MAJOR
   593           #include <intrin.h>
   594           #else
   595           #include <pmmintrin.h>
   596           #endif
   597           #else
   598           #include <pmmintrin.h>
   599           #endif
   600           #ifndef __SSE3__
   601           #error Assembler CPP flag not enabled
   602           #endif
   603           int main(int argc, char **argv) { }" HAVE_SSE3)
   604       if(HAVE_SSE3)
   605         list(APPEND EXTRA_CFLAGS "-msse3")
   606       endif()
   607       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   608     endif()
   609 
   610     if(NOT SSEMATH)
   611       if(SSE OR SSE2 OR SSE3)
   612         if(USE_GCC)
   613           check_c_compiler_flag(-mfpmath=387 HAVE_FP_387)
   614           if(HAVE_FP_387)
   615             list(APPEND EXTRA_CFLAGS "-mfpmath=387")
   616           endif()
   617         endif()
   618         set(HAVE_SSEMATH TRUE)
   619       endif()
   620     endif()
   621 
   622     check_include_file("immintrin.h" HAVE_IMMINTRIN_H)
   623 
   624     if(ALTIVEC)
   625       set(CMAKE_REQUIRED_FLAGS "-maltivec")
   626       check_c_source_compiles("
   627           #include <altivec.h>
   628           vector unsigned int vzero() {
   629               return vec_splat_u32(0);
   630           }
   631           int main(int argc, char **argv) { }" HAVE_ALTIVEC_H_HDR)
   632       check_c_source_compiles("
   633           vector unsigned int vzero() {
   634               return vec_splat_u32(0);
   635           }
   636           int main(int argc, char **argv) { }" HAVE_ALTIVEC)
   637       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   638       if(HAVE_ALTIVEC OR HAVE_ALTIVEC_H_HDR)
   639         set(HAVE_ALTIVEC TRUE) # if only HAVE_ALTIVEC_H_HDR is set
   640         list(APPEND EXTRA_CFLAGS "-maltivec")
   641         set(SDL_ALTIVEC_BLITTERS 1)
   642         if(HAVE_ALTIVEC_H_HDR)
   643           set(HAVE_ALTIVEC_H 1)
   644         endif()
   645       endif()
   646     endif()
   647   elseif(MSVC_VERSION GREATER 1500)
   648     # TODO: SDL_cpuinfo.h needs to support the user's configuration wish
   649     # for MSVC - right now it is always activated
   650     if(NOT ARCH_64)
   651       set(HAVE_MMX TRUE)
   652       set(HAVE_3DNOW TRUE)
   653     endif()
   654     set(HAVE_SSE TRUE)
   655     set(HAVE_SSE2 TRUE)
   656     set(HAVE_SSE3 TRUE)
   657     set(SDL_ASSEMBLY_ROUTINES 1)
   658   endif()
   659 # TODO:
   660 #else()
   661 #  if(USE_GCC OR USE_CLANG)
   662 #    list(APPEND EXTRA_CFLAGS "-mno-sse" "-mno-sse2" "-mno-sse3" "-mno-mmx")
   663 #  endif()
   664 endif()
   665 
   666 # TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define
   667 # anything.
   668 if(LIBC)
   669   if(WINDOWS AND NOT MINGW)
   670     set(HAVE_LIBC TRUE)
   671     foreach(_HEADER stdio.h string.h wchar.h ctype.h math.h limits.h)
   672       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   673       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   674       set(${_HAVE_H} 1)
   675     endforeach()
   676     set(HAVE_SIGNAL_H 1)
   677     foreach(_FN
   678             malloc calloc realloc free qsort abs memset memcpy memmove memcmp
   679             wcslen wcscmp
   680             strlen _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   681             _ultoa strtol strtoul strtoll strtod atoi atof strcmp strncmp
   682             _stricmp _strnicmp sscanf
   683             acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf
   684             copysign copysignf cos cosf exp expf fabs fabsf floor floorf fmod fmodf
   685             log logf log10 log10f pow powf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)
   686       string(TOUPPER ${_FN} _UPPER)
   687       set(HAVE_${_UPPER} 1)
   688     endforeach()
   689     if(NOT CYGWIN AND NOT MINGW)
   690       set(HAVE_ALLOCA 1)
   691     endif()
   692     set(HAVE_M_PI 1)
   693     add_definitions(-D_USE_MATH_DEFINES) # needed for M_PI
   694     set(STDC_HEADERS 1)
   695   else()
   696     set(HAVE_LIBC TRUE)
   697     check_include_file(sys/types.h HAVE_SYS_TYPES_H)
   698     foreach(_HEADER
   699             stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h limits.h
   700             strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h libunwind.h)
   701       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   702       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   703       check_include_file("${_HEADER}" ${_HAVE_H})
   704     endforeach()
   705 
   706     check_include_files("dlfcn.h;stdint.h;stddef.h;inttypes.h;stdlib.h;strings.h;string.h;float.h" STDC_HEADERS)
   707     check_type_size("size_t" SIZEOF_SIZE_T)
   708     check_symbol_exists(M_PI math.h HAVE_M_PI)
   709     # TODO: refine the mprotect check
   710     check_c_source_compiles("#include <sys/types.h>
   711                              #include <sys/mman.h>
   712                              int main() { }" HAVE_MPROTECT)
   713     foreach(_FN
   714             strtod malloc calloc realloc free getenv setenv putenv unsetenv
   715             qsort abs bcopy memset memcpy memmove memcmp strlen strlcpy strlcat
   716             _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   717             _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull
   718             atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp
   719             vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp
   720             nanosleep sysconf sysctlbyname getauxval poll _Exit
   721             )
   722       string(TOUPPER ${_FN} _UPPER)
   723       set(_HAVEVAR "HAVE_${_UPPER}")
   724       check_function_exists("${_FN}" ${_HAVEVAR})
   725     endforeach()
   726 
   727     check_library_exists(m pow "" HAVE_LIBM)
   728     if(HAVE_LIBM)
   729       set(CMAKE_REQUIRED_LIBRARIES m)
   730       foreach(_FN
   731               atan atan2 ceil copysign cos cosf fabs floor log pow scalbn sin
   732               sinf sqrt sqrtf tan tanf acos asin)
   733         string(TOUPPER ${_FN} _UPPER)
   734         set(_HAVEVAR "HAVE_${_UPPER}")
   735         check_function_exists("${_FN}" ${_HAVEVAR})
   736       endforeach()
   737       set(CMAKE_REQUIRED_LIBRARIES)
   738       list(APPEND EXTRA_LIBS m)
   739     endif()
   740 
   741     check_library_exists(iconv iconv_open "" HAVE_LIBICONV)
   742     if(HAVE_LIBICONV)
   743       list(APPEND EXTRA_LIBS iconv)
   744       set(HAVE_ICONV 1)
   745     endif()
   746 
   747     if(NOT APPLE)
   748       check_include_file(alloca.h HAVE_ALLOCA_H)
   749       check_function_exists(alloca HAVE_ALLOCA)
   750     else()
   751       set(HAVE_ALLOCA_H 1)
   752       set(HAVE_ALLOCA 1)
   753     endif()
   754 
   755     check_struct_has_member("struct sigaction" "sa_sigaction" "signal.h" HAVE_SA_SIGACTION)
   756   endif()
   757 else()
   758   if(WINDOWS)
   759     set(HAVE_STDARG_H 1)
   760     set(HAVE_STDDEF_H 1)
   761   endif()
   762 endif()
   763 
   764 
   765 # Enable/disable various subsystems of the SDL library
   766 foreach(_SUB ${SDL_SUBSYSTEMS})
   767   string(TOUPPER ${_SUB} _OPT)
   768   if(NOT SDL_${_OPT})
   769     set(SDL_${_OPT}_DISABLED 1)
   770   endif()
   771 endforeach()
   772 if(SDL_JOYSTICK)
   773   file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/*.c)
   774   set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
   775 endif()
   776 if(SDL_HAPTIC)
   777   if(NOT SDL_JOYSTICK)
   778     # Haptic requires some private functions from the joystick subsystem.
   779     message_error("SDL_HAPTIC requires SDL_JOYSTICK, which is not enabled")
   780   endif()
   781   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/*.c)
   782   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
   783 endif()
   784 if(SDL_SENSOR)
   785   file(GLOB SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/*.c)
   786   set(SOURCE_FILES ${SOURCE_FILES} ${SENSOR_SOURCES})
   787 endif()
   788 if(SDL_POWER)
   789   file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/*.c)
   790   set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
   791 endif()
   792 # TODO: in configure.ac, the test for LOADSO and SDL_DLOPEN is a bit weird:
   793 # if LOADSO is not wanted, SDL_LOADSO_DISABLED is set
   794 # If however on Unix or APPLE dlopen() is detected via CheckDLOPEN(),
   795 # SDL_LOADSO_DISABLED will not be set, regardless of the LOADSO settings
   796 
   797 # General SDL subsystem options, valid for all platforms
   798 if(SDL_AUDIO)
   799   # CheckDummyAudio/CheckDiskAudio - valid for all platforms
   800   if(DUMMYAUDIO)
   801     set(SDL_AUDIO_DRIVER_DUMMY 1)
   802     file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)
   803     set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})
   804     set(HAVE_DUMMYAUDIO TRUE)
   805   endif()
   806   if(DISKAUDIO)
   807     set(SDL_AUDIO_DRIVER_DISK 1)
   808     file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)
   809     set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})
   810     set(HAVE_DISKAUDIO TRUE)
   811   endif()
   812 endif()
   813 
   814 if(SDL_DLOPEN)
   815   # Relevant for Unix/Darwin only
   816   if(UNIX OR APPLE)
   817     CheckDLOPEN()
   818   endif()
   819 endif()
   820 
   821 if(SDL_VIDEO)
   822   if(VIDEO_DUMMY)
   823     set(SDL_VIDEO_DRIVER_DUMMY 1)
   824     file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)
   825     set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})
   826     set(HAVE_VIDEO_DUMMY TRUE)
   827     set(HAVE_SDL_VIDEO TRUE)
   828   endif()
   829 endif()
   830 
   831 if(ANDROID)
   832   file(GLOB ANDROID_CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/android/*.c)
   833   set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES})
   834 
   835   # SDL_spinlock.c Needs to be compiled in ARM mode.
   836   # There seems to be no better way currently to set the ARM mode.
   837   # see: https://issuetracker.google.com/issues/62264618
   838   # Another option would be to set ARM mode to all compiled files
   839   check_c_compiler_flag(-marm HAVE_ARM_MODE)
   840   if(HAVE_ARM_MODE)
   841     set_source_files_properties(${SDL2_SOURCE_DIR}/src/atomic/SDL_spinlock.c PROPERTIES COMPILE_FLAGS -marm)
   842   endif()
   843 
   844   file(GLOB ANDROID_MAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/android/*.c)
   845   set(SDLMAIN_SOURCES ${SDLMAIN_SOURCES} ${ANDROID_MAIN_SOURCES})
   846 
   847   if(SDL_AUDIO)
   848     set(SDL_AUDIO_DRIVER_ANDROID 1)
   849     file(GLOB ANDROID_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/android/*.c)
   850     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_AUDIO_SOURCES})
   851     set(HAVE_SDL_AUDIO TRUE)
   852   endif()
   853   if(SDL_FILESYSTEM)
   854     set(SDL_FILESYSTEM_ANDROID 1)
   855     file(GLOB ANDROID_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/android/*.c)
   856     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_FILESYSTEM_SOURCES})
   857     set(HAVE_SDL_FILESYSTEM TRUE)
   858   endif()
   859   if(SDL_HAPTIC)
   860     set(SDL_HAPTIC_ANDROID 1)
   861     file(GLOB ANDROID_HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/android/*.c)
   862     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_HAPTIC_SOURCES})
   863     set(HAVE_SDL_HAPTIC TRUE)
   864   endif()
   865   if(SDL_JOYSTICK)
   866     set(SDL_JOYSTICK_ANDROID 1)
   867     file(GLOB ANDROID_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/android/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
   868     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_JOYSTICK_SOURCES})
   869     set(HAVE_SDL_JOYSTICK TRUE)
   870   endif()
   871   if(SDL_LOADSO)
   872     set(SDL_LOADSO_DLOPEN 1)
   873     file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dlopen/*.c)
   874     set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
   875     set(HAVE_SDL_LOADSO TRUE)
   876   endif()
   877   if(SDL_POWER)
   878     set(SDL_POWER_ANDROID 1)
   879     file(GLOB ANDROID_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/android/*.c)
   880     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_POWER_SOURCES})
   881     set(HAVE_SDL_POWER TRUE)
   882   endif()
   883   if(SDL_TIMERS)
   884     set(SDL_TIMER_UNIX 1)
   885     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
   886     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   887     set(HAVE_SDL_TIMERS TRUE)
   888   endif()
   889   if(SDL_SENSOR)
   890     set(SDL_SENSOR_ANDROID 1)
   891     set(HAVE_SDL_SENSORS TRUE)
   892     file(GLOB ANDROID_SENSOR_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/android/*.c)
   893     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_SENSOR_SOURCES})
   894   endif()
   895   if(SDL_VIDEO)
   896     set(SDL_VIDEO_DRIVER_ANDROID 1)
   897     file(GLOB ANDROID_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/android/*.c)
   898     set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_VIDEO_SOURCES})
   899     set(HAVE_SDL_VIDEO TRUE)
   900 
   901     # Core stuff
   902     find_library(ANDROID_DL_LIBRARY dl)
   903     find_library(ANDROID_LOG_LIBRARY log)
   904     find_library(ANDROID_LIBRARY_LIBRARY android)
   905     list(APPEND EXTRA_LIBS ${ANDROID_DL_LIBRARY} ${ANDROID_LOG_LIBRARY} ${ANDROID_LIBRARY_LIBRARY})
   906     add_definitions(-DGL_GLEXT_PROTOTYPES)
   907 
   908     #enable gles
   909     if(VIDEO_OPENGLES)
   910       set(SDL_VIDEO_OPENGL_EGL 1)
   911       set(HAVE_VIDEO_OPENGLES TRUE)
   912       set(SDL_VIDEO_OPENGL_ES2 1)
   913       set(SDL_VIDEO_RENDER_OGL_ES2 1)
   914 
   915       find_library(OpenGLES1_LIBRARY GLESv1_CM)
   916       find_library(OpenGLES2_LIBRARY GLESv2)
   917       list(APPEND EXTRA_LIBS ${OpenGLES1_LIBRARY} ${OpenGLES2_LIBRARY})
   918     endif()
   919 
   920     CHECK_C_SOURCE_COMPILES("
   921     #if defined(__ARM_ARCH) && __ARM_ARCH < 7
   922     #error Vulkan doesn't work on this configuration
   923     #endif
   924     int main()
   925     {
   926         return 0;
   927     }
   928     " VULKAN_PASSED_ANDROID_CHECKS)
   929     if(NOT VULKAN_PASSED_ANDROID_CHECKS)
   930       set(VIDEO_VULKAN OFF)
   931       message(STATUS "Vulkan doesn't work on this configuration")
   932     endif()
   933   endif()
   934 
   935   file(GLOB ANDROID_HIDAPI_SOURCES ${SDL2_SOURCE_DIR}/src/hidapi/android/*.cpp)
   936 
   937   CheckPTHREAD()
   938 
   939 endif()
   940 
   941 # Platform-specific options and settings
   942 if(EMSCRIPTEN)
   943   # Hide noisy warnings that intend to aid mostly during initial stages of porting a new
   944   # project. Uncomment at will for verbose cross-compiling -I/../ path info.
   945   add_definitions(-Wno-warn-absolute-paths)
   946   if(SDL_AUDIO)
   947     set(SDL_AUDIO_DRIVER_EMSCRIPTEN 1)
   948     file(GLOB EM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/emscripten/*.c)
   949     set(SOURCE_FILES ${SOURCE_FILES} ${EM_AUDIO_SOURCES})
   950     set(HAVE_SDL_AUDIO TRUE)
   951   endif()
   952   if(SDL_FILESYSTEM)
   953     set(SDL_FILESYSTEM_EMSCRIPTEN 1)
   954     file(GLOB EM_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/emscripten/*.c)
   955     set(SOURCE_FILES ${SOURCE_FILES} ${EM_FILESYSTEM_SOURCES})
   956     set(HAVE_SDL_FILESYSTEM TRUE)
   957   endif()
   958   if(SDL_JOYSTICK)
   959     set(SDL_JOYSTICK_EMSCRIPTEN 1)
   960     file(GLOB EM_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/emscripten/*.c)
   961     set(SOURCE_FILES ${SOURCE_FILES} ${EM_JOYSTICK_SOURCES})
   962     set(HAVE_SDL_JOYSTICK TRUE)
   963   endif()
   964   if(SDL_POWER)
   965     set(SDL_POWER_EMSCRIPTEN 1)
   966     file(GLOB EM_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/emscripten/*.c)
   967     set(SOURCE_FILES ${SOURCE_FILES} ${EM_POWER_SOURCES})
   968     set(HAVE_SDL_POWER TRUE)
   969   endif()
   970   if(SDL_TIMERS)
   971     set(SDL_TIMER_UNIX 1)
   972     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
   973     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   974     set(HAVE_SDL_TIMERS TRUE)
   975 
   976     if(CLOCK_GETTIME)
   977       set(HAVE_CLOCK_GETTIME 1)
   978     endif()
   979   endif()
   980   if(SDL_VIDEO)
   981     set(SDL_VIDEO_DRIVER_EMSCRIPTEN 1)
   982     file(GLOB EM_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/emscripten/*.c)
   983     set(SOURCE_FILES ${SOURCE_FILES} ${EM_VIDEO_SOURCES})
   984     set(HAVE_SDL_VIDEO TRUE)
   985 
   986     #enable gles
   987     if(VIDEO_OPENGLES)
   988       set(SDL_VIDEO_OPENGL_EGL 1)
   989       set(HAVE_VIDEO_OPENGLES TRUE)
   990       set(SDL_VIDEO_OPENGL_ES2 1)
   991       set(SDL_VIDEO_RENDER_OGL_ES2 1)
   992     endif()
   993   endif()
   994 elseif(UNIX AND NOT APPLE AND NOT ANDROID)
   995   if(SDL_AUDIO)
   996     if(SYSV5 OR SOLARIS OR HPUX)
   997         set(SDL_AUDIO_DRIVER_SUNAUDIO 1)
   998         file(GLOB SUN_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sun/*.c)
   999         set(SOURCE_FILES ${SOURCE_FILES} ${SUN_AUDIO_SOURCES})
  1000         set(HAVE_SDL_AUDIO TRUE)
  1001     elseif(NETBSD)
  1002         set(SDL_AUDIO_DRIVER_NETBSD 1)
  1003         file(GLOB NETBSD_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/netbsd/*.c)
  1004         set(SOURCE_FILES ${SOURCE_FILES} ${NETBSD_AUDIO_SOURCES})
  1005         set(HAVE_SDL_AUDIO TRUE)
  1006     elseif(AIX)
  1007         set(SDL_AUDIO_DRIVER_PAUDIO 1)
  1008         file(GLOB AIX_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/paudio/*.c)
  1009         set(SOURCE_FILES ${SOURCE_FILES} ${AIX_AUDIO_SOURCES})
  1010         set(HAVE_SDL_AUDIO TRUE)
  1011     endif()
  1012     CheckOSS()
  1013     CheckALSA()
  1014     CheckJACK()
  1015     CheckPulseAudio()
  1016     CheckESD()
  1017     CheckARTS()
  1018     CheckNAS()
  1019     CheckSNDIO()
  1020     CheckFusionSound()
  1021     CheckLibSampleRate()
  1022   endif()
  1023 
  1024   if(SDL_VIDEO)
  1025     # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
  1026     CheckRPI()
  1027     CheckX11()
  1028     CheckDirectFB()
  1029     CheckOpenGLX11()
  1030     CheckOpenGLESX11()
  1031     CheckWayland()
  1032     CheckVivante()
  1033     CheckKMSDRM()
  1034   endif()
  1035 
  1036   if(UNIX)
  1037     file(GLOB CORE_UNIX_SOURCES ${SDL2_SOURCE_DIR}/src/core/unix/*.c)
  1038     set(SOURCE_FILES ${SOURCE_FILES} ${CORE_UNIX_SOURCES})
  1039   endif()
  1040 
  1041   if(LINUX)
  1042     check_c_source_compiles("
  1043         #include <linux/input.h>
  1044         #ifndef EVIOCGNAME
  1045         #error EVIOCGNAME() ioctl not available
  1046         #endif
  1047         int main(int argc, char** argv) {}" HAVE_INPUT_EVENTS)
  1048 
  1049     check_c_source_compiles("
  1050         #include <linux/kd.h>
  1051         #include <linux/keyboard.h>
  1052 
  1053         int main(int argc, char **argv)
  1054         {
  1055             struct kbentry kbe;
  1056             kbe.kb_table = KG_CTRL;
  1057             ioctl(0, KDGKBENT, &kbe);
  1058         }" HAVE_INPUT_KD)
  1059 
  1060     file(GLOB CORE_LINUX_SOURCES ${SDL2_SOURCE_DIR}/src/core/linux/*.c)
  1061     set(SOURCE_FILES ${SOURCE_FILES} ${CORE_LINUX_SOURCES})
  1062 
  1063     if(HAVE_INPUT_EVENTS)
  1064       set(SDL_INPUT_LINUXEV 1)
  1065     endif()
  1066 
  1067     if(SDL_HAPTIC AND HAVE_INPUT_EVENTS)
  1068       set(SDL_HAPTIC_LINUX 1)
  1069       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/linux/*.c)
  1070       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1071       set(HAVE_SDL_HAPTIC TRUE)
  1072     endif()
  1073 
  1074     if(HAVE_INPUT_KD)
  1075       set(SDL_INPUT_LINUXKD 1)
  1076     endif()
  1077 
  1078     check_include_file("libudev.h" HAVE_LIBUDEV_H)
  1079 
  1080     if(PKG_CONFIG_FOUND)
  1081       pkg_search_module(DBUS dbus-1 dbus)
  1082       if(DBUS_FOUND)
  1083         set(HAVE_DBUS_DBUS_H TRUE)
  1084         include_directories(${DBUS_INCLUDE_DIRS})
  1085         list(APPEND EXTRA_LIBS ${DBUS_LIBRARIES})
  1086       endif()
  1087 
  1088       pkg_search_module(IBUS ibus-1.0 ibus)
  1089       if(IBUS_FOUND)
  1090         set(HAVE_IBUS_IBUS_H TRUE)
  1091         include_directories(${IBUS_INCLUDE_DIRS})
  1092         list(APPEND EXTRA_LIBS ${IBUS_LIBRARIES})
  1093       endif()
  1094       if(HAVE_LIBUNWIND_H)
  1095         # We've already found the header, so REQUIRE the lib to be present
  1096         pkg_search_module(UNWIND REQUIRED libunwind)
  1097         pkg_search_module(UNWIND_GENERIC REQUIRED libunwind-generic)
  1098         list(APPEND EXTRA_LIBS ${UNWIND_LIBRARIES} ${UNWIND_GENERIC_LIBRARIES})
  1099       endif()
  1100     endif()
  1101 
  1102     check_include_file("fcitx/frontend.h" HAVE_FCITX_FRONTEND_H)
  1103   endif()
  1104 
  1105   if(INPUT_TSLIB)
  1106     check_c_source_compiles("
  1107         #include \"tslib.h\"
  1108         int main(int argc, char** argv) { }" HAVE_INPUT_TSLIB)
  1109     if(HAVE_INPUT_TSLIB)
  1110       set(SDL_INPUT_TSLIB 1)
  1111       list(APPEND EXTRA_LIBS ts)
  1112     endif()
  1113   endif()
  1114 
  1115   if(SDL_JOYSTICK)
  1116     CheckUSBHID()   # seems to be BSD specific - limit the test to BSD only?
  1117     if(LINUX AND NOT ANDROID)
  1118       set(SDL_JOYSTICK_LINUX 1)
  1119       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
  1120       set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1121       set(HAVE_SDL_JOYSTICK TRUE)
  1122     endif()
  1123   endif()
  1124 
  1125   CheckPTHREAD()
  1126 
  1127   if(CLOCK_GETTIME)
  1128     check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
  1129     if(FOUND_CLOCK_GETTIME)
  1130       list(APPEND EXTRA_LIBS rt)
  1131       set(HAVE_CLOCK_GETTIME 1)
  1132     else()
  1133       check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
  1134       if(FOUND_CLOCK_GETTIME)
  1135         set(HAVE_CLOCK_GETTIME 1)
  1136       endif()
  1137     endif()
  1138   endif()
  1139 
  1140   check_include_file(linux/version.h HAVE_LINUX_VERSION_H)
  1141   if(HAVE_LINUX_VERSION_H)
  1142     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_LINUX_VERSION_H")
  1143   endif()
  1144 
  1145   if(SDL_POWER)
  1146     if(LINUX)
  1147       set(SDL_POWER_LINUX 1)
  1148       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/linux/*.c)
  1149       set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
  1150       set(HAVE_SDL_POWER TRUE)
  1151     endif()
  1152   endif()
  1153 
  1154   if(SDL_FILESYSTEM)
  1155     set(SDL_FILESYSTEM_UNIX 1)
  1156     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/unix/*.c)
  1157     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1158     set(HAVE_SDL_FILESYSTEM TRUE)
  1159   endif()
  1160 
  1161   if(SDL_TIMERS)
  1162     set(SDL_TIMER_UNIX 1)
  1163     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
  1164     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1165     set(HAVE_SDL_TIMERS TRUE)
  1166   endif()
  1167 
  1168   if(RPATH)
  1169     set(SDL_RLD_FLAGS "")
  1170     if(BSDI OR FREEBSD OR LINUX OR NETBSD)
  1171       set(CMAKE_REQUIRED_FLAGS "-Wl,--enable-new-dtags")
  1172       check_c_compiler_flag("" HAVE_ENABLE_NEW_DTAGS)
  1173       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
  1174       if(HAVE_ENABLE_NEW_DTAGS)
  1175         set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir} -Wl,--enable-new-dtags")
  1176       else()
  1177         set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir}")
  1178       endif()
  1179     elseif(SOLARIS)
  1180       set(SDL_RLD_FLAGS "-R\${libdir}")
  1181     endif()
  1182     set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
  1183     set(HAVE_RPATH TRUE)
  1184   endif()
  1185 
  1186 elseif(WINDOWS)
  1187   find_program(WINDRES windres)
  1188 
  1189   check_c_source_compiles("
  1190     #include <windows.h>
  1191     int main(int argc, char **argv) { }" HAVE_WIN32_CC)
  1192 
  1193   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  1194   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
  1195 
  1196   if(MSVC)
  1197     # Prevent codegen that would use the VC runtime libraries.
  1198     set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/GS-")
  1199     if(NOT ARCH_64)
  1200       set_property(DIRECTORY . APPEND PROPERTY COMPILE_OPTIONS "/arch:SSE")
  1201     endif()
  1202   endif()
  1203 
  1204   # Check for DirectX
  1205   if(DIRECTX)
  1206     if(DEFINED MSVC_VERSION AND NOT ${MSVC_VERSION} LESS 1700)
  1207         set(USE_WINSDK_DIRECTX TRUE)
  1208     endif()
  1209     if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
  1210       if("$ENV{DXSDK_DIR}" STREQUAL "")
  1211         message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")
  1212       endif()
  1213       set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")
  1214     endif()
  1215 
  1216     if(HAVE_WIN32_CC)
  1217       # xinput.h may need windows.h, but doesn't include it itself.
  1218       check_c_source_compiles("
  1219         #include <windows.h>
  1220         #include <xinput.h>
  1221         int main(int argc, char **argv) { }" HAVE_XINPUT_H)
  1222       check_c_source_compiles("
  1223         #include <windows.h>
  1224         #include <xinput.h>
  1225         XINPUT_GAMEPAD_EX x1;
  1226         int main(int argc, char **argv) { }" HAVE_XINPUT_GAMEPAD_EX)
  1227       check_c_source_compiles("
  1228         #include <windows.h>
  1229         #include <xinput.h>
  1230         XINPUT_STATE_EX s1;
  1231         int main(int argc, char **argv) { }" HAVE_XINPUT_STATE_EX)
  1232     else()
  1233       check_include_file(xinput.h HAVE_XINPUT_H)
  1234     endif()
  1235 
  1236     check_include_file(d3d9.h HAVE_D3D_H)
  1237     check_include_file(d3d11_1.h HAVE_D3D11_H)
  1238     check_include_file(ddraw.h HAVE_DDRAW_H)
  1239     check_include_file(dsound.h HAVE_DSOUND_H)
  1240     check_include_file(dinput.h HAVE_DINPUT_H)
  1241     check_include_file(dxgi.h HAVE_DXGI_H)
  1242     if(HAVE_D3D_H OR HAVE_D3D11_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H)
  1243       set(HAVE_DIRECTX TRUE)
  1244       if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
  1245       # TODO: change $ENV{DXSDL_DIR} to get the path from the include checks
  1246         link_directories($ENV{DXSDK_DIR}\\lib\\${PROCESSOR_ARCH})
  1247         include_directories($ENV{DXSDK_DIR}\\Include)
  1248       endif()
  1249     endif()
  1250     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
  1251   endif()
  1252 
  1253   # headers needed elsewhere ...
  1254   check_include_file(mmdeviceapi.h HAVE_MMDEVICEAPI_H)
  1255   check_include_file(audioclient.h HAVE_AUDIOCLIENT_H)
  1256   check_include_file(endpointvolume.h HAVE_ENDPOINTVOLUME_H)
  1257 
  1258   if(SDL_AUDIO)
  1259     set(SDL_AUDIO_DRIVER_WINMM 1)
  1260     file(GLOB WINMM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/winmm/*.c)
  1261     set(SOURCE_FILES ${SOURCE_FILES} ${WINMM_AUDIO_SOURCES})
  1262     set(HAVE_SDL_AUDIO TRUE)
  1263 
  1264     if(HAVE_DSOUND_H)
  1265       set(SDL_AUDIO_DRIVER_DSOUND 1)
  1266       file(GLOB DSOUND_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/directsound/*.c)
  1267       set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})
  1268     endif()
  1269 
  1270     if(WASAPI AND HAVE_AUDIOCLIENT_H AND HAVE_MMDEVICEAPI_H)
  1271       set(SDL_AUDIO_DRIVER_WASAPI 1)
  1272       file(GLOB WASAPI_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/wasapi/*.c)
  1273       set(SOURCE_FILES ${SOURCE_FILES} ${WASAPI_AUDIO_SOURCES})
  1274     endif()
  1275   endif()
  1276 
  1277   if(SDL_VIDEO)
  1278     # requires SDL_LOADSO on Windows (IME, DX, etc.)
  1279     if(NOT SDL_LOADSO)
  1280       message_error("SDL_VIDEO requires SDL_LOADSO, which is not enabled")
  1281     endif()
  1282     set(SDL_VIDEO_DRIVER_WINDOWS 1)
  1283     file(GLOB WIN_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/windows/*.c)
  1284     set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})
  1285 
  1286     if(RENDER_D3D AND HAVE_D3D_H)
  1287       set(SDL_VIDEO_RENDER_D3D 1)
  1288       set(HAVE_RENDER_D3D TRUE)
  1289     endif()
  1290     if(RENDER_D3D AND HAVE_D3D11_H)
  1291       set(SDL_VIDEO_RENDER_D3D11 1)
  1292       set(HAVE_RENDER_D3D TRUE)
  1293     endif()
  1294     set(HAVE_SDL_VIDEO TRUE)
  1295   endif()
  1296 
  1297   if(SDL_THREADS)
  1298     set(SDL_THREAD_WINDOWS 1)
  1299     set(SOURCE_FILES ${SOURCE_FILES}
  1300       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_sysmutex.c
  1301       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syssem.c
  1302       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systhread.c
  1303       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systls.c
  1304       ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syscond.c)
  1305     set(HAVE_SDL_THREADS TRUE)
  1306   endif()
  1307 
  1308   if(SDL_POWER)
  1309     set(SDL_POWER_WINDOWS 1)
  1310     set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/windows/SDL_syspower.c)
  1311     set(HAVE_SDL_POWER TRUE)
  1312   endif()
  1313 
  1314   if(SDL_FILESYSTEM)
  1315     set(SDL_FILESYSTEM_WINDOWS 1)
  1316     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/windows/*.c)
  1317     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1318     set(HAVE_SDL_FILESYSTEM TRUE)
  1319   endif()
  1320 
  1321   # Libraries for Win32 native and MinGW
  1322   list(APPEND EXTRA_LIBS user32 gdi32 winmm imm32 ole32 oleaut32 version uuid advapi32 shell32)
  1323 
  1324   # TODO: in configure.ac the check for timers is set on
  1325   # cygwin | mingw32* - does this include mingw32CE?
  1326   if(SDL_TIMERS)
  1327     set(SDL_TIMER_WINDOWS 1)
  1328     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/windows/*.c)
  1329     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1330     set(HAVE_SDL_TIMERS TRUE)
  1331   endif()
  1332 
  1333   if(SDL_LOADSO)
  1334     set(SDL_LOADSO_WINDOWS 1)
  1335     file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/windows/*.c)
  1336     set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1337     set(HAVE_SDL_LOADSO TRUE)
  1338   endif()
  1339 
  1340   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  1341   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
  1342 
  1343   if(SDL_VIDEO)
  1344     if(VIDEO_OPENGL)
  1345       set(SDL_VIDEO_OPENGL 1)
  1346       set(SDL_VIDEO_OPENGL_WGL 1)
  1347       set(SDL_VIDEO_RENDER_OGL 1)
  1348       set(HAVE_VIDEO_OPENGL TRUE)
  1349     endif()
  1350 
  1351     if(VIDEO_OPENGLES)
  1352       set(SDL_VIDEO_OPENGL_EGL 1)
  1353       set(SDL_VIDEO_OPENGL_ES2 1)
  1354       set(SDL_VIDEO_RENDER_OGL_ES2 1)
  1355       set(HAVE_VIDEO_OPENGLES TRUE)
  1356     endif()
  1357   endif()
  1358 
  1359   if(SDL_JOYSTICK)
  1360     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/windows/*.c)
  1361     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1362     if(HAVE_DINPUT_H)
  1363       set(SDL_JOYSTICK_DINPUT 1)
  1364       list(APPEND EXTRA_LIBS dinput8)
  1365       if(CMAKE_COMPILER_IS_MINGW)
  1366         list(APPEND EXTRA_LIBS dxerr8)
  1367       elseif (NOT USE_WINSDK_DIRECTX)
  1368         list(APPEND EXTRA_LIBS dxerr)
  1369       endif()
  1370     endif()
  1371     if(HAVE_XINPUT_H)
  1372       set(SDL_JOYSTICK_XINPUT 1)
  1373     endif()
  1374     if(NOT HAVE_DINPUT_H AND NOT HAVE_XINPUT_H)
  1375       set(SDL_JOYSTICK_WINMM 1)
  1376     endif()
  1377     set(HAVE_SDL_JOYSTICK TRUE)
  1378 
  1379     if(SDL_HAPTIC)
  1380       if(HAVE_DINPUT_H OR HAVE_XINPUT_H)
  1381         file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/windows/*.c)
  1382         if(HAVE_DINPUT_H)
  1383           set(SDL_HAPTIC_DINPUT 1)
  1384         endif()
  1385         if(HAVE_XINPUT_H)
  1386           set(SDL_HAPTIC_XINPUT 1)
  1387         endif()
  1388       else()
  1389         file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1390         set(SDL_HAPTIC_DUMMY 1)
  1391       endif()
  1392       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1393       set(HAVE_SDL_HAPTIC TRUE)
  1394     endif()
  1395   endif()
  1396 
  1397   file(GLOB VERSION_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.rc)
  1398   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.c)
  1399   if(MINGW OR CYGWIN)
  1400     list(APPEND EXTRA_LIBS mingw32)
  1401     list(APPEND EXTRA_LDFLAGS "-mwindows")
  1402     set(SDL_CFLAGS "${SDL_CFLAGS} -Dmain=SDL_main")
  1403     list(APPEND SDL_LIBS "-lmingw32" "-lSDL2main" "-mwindows")
  1404   endif()
  1405 elseif(APPLE)
  1406   # TODO: rework this all for proper MacOS X, iOS and Darwin support
  1407 
  1408   # We always need these libs on macOS at the moment.
  1409   # !!! FIXME: we need Carbon for some very old API calls in
  1410   # !!! FIXME:  src/video/cocoa/SDL_cocoakeyboard.c, but we should figure out
  1411   # !!! FIXME:  how to dump those.
  1412   if(NOT IOS)
  1413     set(SDL_FRAMEWORK_COCOA 1)
  1414     set(SDL_FRAMEWORK_CARBON 1)
  1415   endif()
  1416 
  1417   # Requires the darwin file implementation
  1418   if(SDL_FILE)
  1419     file(GLOB EXTRA_SOURCES ${SDL2_SOURCE_DIR}/src/file/cocoa/*.m)
  1420     set(SOURCE_FILES ${EXTRA_SOURCES} ${SOURCE_FILES})
  1421     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1422     set_source_files_properties(${EXTRA_SOURCES} PROPERTIES LANGUAGE C)
  1423     set(HAVE_SDL_FILE TRUE)
  1424     # !!! FIXME: why is COREVIDEO inside this if() block?
  1425     set(SDL_FRAMEWORK_COREVIDEO 1)
  1426   else()
  1427     message_error("SDL_FILE must be enabled to build on MacOS X")
  1428   endif()
  1429 
  1430   if(SDL_AUDIO)
  1431     set(SDL_AUDIO_DRIVER_COREAUDIO 1)
  1432     file(GLOB AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/coreaudio/*.m)
  1433     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1434     set_source_files_properties(${AUDIO_SOURCES} PROPERTIES LANGUAGE C)
  1435     set(SOURCE_FILES ${SOURCE_FILES} ${AUDIO_SOURCES})
  1436     set(HAVE_SDL_AUDIO TRUE)
  1437     set(SDL_FRAMEWORK_COREAUDIO 1)
  1438     set(SDL_FRAMEWORK_AUDIOTOOLBOX 1)
  1439   endif()
  1440 
  1441   if(SDL_JOYSTICK)
  1442     set(SDL_JOYSTICK_IOKIT 1)
  1443     if (IOS)
  1444       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/iphoneos/*.m ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
  1445     else()
  1446       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)
  1447     endif()
  1448     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1449     set(HAVE_SDL_JOYSTICK TRUE)
  1450     set(SDL_FRAMEWORK_IOKIT 1)
  1451     set(SDL_FRAMEWORK_FF 1)
  1452   endif()
  1453 
  1454   if(SDL_HAPTIC)
  1455     set(SDL_HAPTIC_IOKIT 1)
  1456     if (IOS)
  1457       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1458       set(SDL_HAPTIC_DUMMY 1)
  1459     else()
  1460       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/darwin/*.c)
  1461     endif()
  1462     set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1463     set(HAVE_SDL_HAPTIC TRUE)
  1464     set(SDL_FRAMEWORK_IOKIT 1)
  1465     set(SDL_FRAMEWORK_FF 1)
  1466     if(NOT SDL_JOYSTICK)
  1467       message(FATAL_ERROR "SDL_HAPTIC requires SDL_JOYSTICK to be enabled")
  1468     endif()
  1469   endif()
  1470 
  1471   if(SDL_POWER)
  1472     set(SDL_POWER_MACOSX 1)
  1473     if (IOS)
  1474       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/uikit/*.m)
  1475     else()
  1476       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/macosx/*.c)
  1477     endif()
  1478     set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
  1479     set(HAVE_SDL_POWER TRUE)
  1480     set(SDL_FRAMEWORK_IOKIT 1)
  1481   endif()
  1482 
  1483   if(SDL_TIMERS)
  1484     set(SDL_TIMER_UNIX 1)
  1485     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
  1486     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1487     set(HAVE_SDL_TIMERS TRUE)
  1488   endif(SDL_TIMERS)
  1489 
  1490   if(SDL_FILESYSTEM)
  1491     set(SDL_FILESYSTEM_COCOA 1)
  1492     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/cocoa/*.m)
  1493     # !!! FIXME: modern CMake doesn't need "LANGUAGE C" for Objective-C.
  1494     set_source_files_properties(${FILESYSTEM_SOURCES} PROPERTIES LANGUAGE C)
  1495     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1496     set(HAVE_SDL_FILESYSTEM TRUE)
  1497   endif()
  1498 
  1499   # Actually load the frameworks at the end so we don't duplicate include.
  1500   if(SDL_FRAMEWORK_COREVIDEO)
  1501     find_library(COREVIDEO CoreVideo)
  1502     list(APPEND EXTRA_LIBS ${COREVIDEO})
  1503   endif()
  1504   if(SDL_FRAMEWORK_COCOA)
  1505     find_library(COCOA_LIBRARY Cocoa)
  1506     list(APPEND EXTRA_LIBS ${COCOA_LIBRARY})
  1507   endif()
  1508   if(SDL_FRAMEWORK_IOKIT)
  1509     find_library(IOKIT IOKit)
  1510     list(APPEND EXTRA_LIBS ${IOKIT})
  1511   endif()
  1512   if(SDL_FRAMEWORK_FF)
  1513     find_library(FORCEFEEDBACK ForceFeedback)
  1514     list(APPEND EXTRA_LIBS ${FORCEFEEDBACK})
  1515   endif()
  1516   if(SDL_FRAMEWORK_CARBON)
  1517     find_library(CARBON_LIBRARY Carbon)
  1518     list(APPEND EXTRA_LIBS ${CARBON_LIBRARY})
  1519   endif()
  1520   if(SDL_FRAMEWORK_COREAUDIO)
  1521     find_library(COREAUDIO CoreAudio)
  1522     list(APPEND EXTRA_LIBS ${COREAUDIO})
  1523   endif()
  1524   if(SDL_FRAMEWORK_AUDIOTOOLBOX)
  1525     find_library(AUDIOTOOLBOX AudioToolbox)
  1526     list(APPEND EXTRA_LIBS ${AUDIOTOOLBOX})
  1527   endif()
  1528 
  1529   # iOS hack needed - http://code.google.com/p/ios-cmake/ ?
  1530   if(SDL_VIDEO)
  1531     if (IOS)
  1532       set(SDL_VIDEO_DRIVER_UIKIT 1)
  1533       file(GLOB UIKITVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/uikit/*.m)
  1534       set(SOURCE_FILES ${SOURCE_FILES} ${UIKITVIDEO_SOURCES})
  1535     else()
  1536       CheckCOCOA()
  1537       if(VIDEO_OPENGL)
  1538         set(SDL_VIDEO_OPENGL 1)
  1539         set(SDL_VIDEO_OPENGL_CGL 1)
  1540         set(SDL_VIDEO_RENDER_OGL 1)
  1541         set(HAVE_VIDEO_OPENGL TRUE)
  1542       endif()
  1543 
  1544       if(VIDEO_OPENGLES)
  1545         set(SDL_VIDEO_OPENGL_EGL 1)
  1546         set(SDL_VIDEO_OPENGL_ES2 1)
  1547         set(SDL_VIDEO_RENDER_OGL_ES2 1)
  1548         set(HAVE_VIDEO_OPENGLES TRUE)
  1549       endif()
  1550     endif()
  1551   endif()
  1552 
  1553   CheckPTHREAD()
  1554 elseif(HAIKU)
  1555   if(SDL_VIDEO)
  1556     set(SDL_VIDEO_DRIVER_HAIKU 1)
  1557     file(GLOB HAIKUVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/haiku/*.c)
  1558     set(SOURCE_FILES ${SOURCE_FILES} ${HAIKUVIDEO_SOURCES})
  1559     set(HAVE_SDL_VIDEO TRUE)
  1560 
  1561     set(SDL_FILESYSTEM_HAIKU 1)
  1562     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/haiku/*.cc)
  1563     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1564     set(HAVE_SDL_FILESYSTEM TRUE)
  1565 
  1566     if(SDL_TIMERS)
  1567       set(SDL_TIMER_HAIKU 1)
  1568       file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/haiku/*.c)
  1569       set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1570       set(HAVE_SDL_TIMERS TRUE)
  1571     endif(SDL_TIMERS)
  1572 
  1573     if(VIDEO_OPENGL)
  1574       # TODO: Use FIND_PACKAGE(OpenGL) instead
  1575       set(SDL_VIDEO_OPENGL 1)
  1576       set(SDL_VIDEO_OPENGL_BGL 1)
  1577       set(SDL_VIDEO_RENDER_OGL 1)
  1578       list(APPEND EXTRA_LIBS GL)
  1579       set(HAVE_VIDEO_OPENGL TRUE)
  1580     endif()
  1581   endif()
  1582 
  1583   CheckPTHREAD()
  1584 endif()
  1585 
  1586 if(VIDEO_VULKAN)
  1587   set(SDL_VIDEO_VULKAN 1)
  1588   set(HAVE_VIDEO_VULKAN TRUE)
  1589 endif()
  1590 
  1591 # Dummies
  1592 # configure.ac does it differently:
  1593 # if not have X
  1594 #   if enable_X {  SDL_X_DISABLED = 1 }
  1595 #   [add dummy sources]
  1596 # so it always adds a dummy, without checking, if it was actually requested.
  1597 # This leads to missing internal references on building, since the
  1598 # src/X/*.c does not get included.
  1599 if(NOT HAVE_SDL_JOYSTICK)
  1600   set(SDL_JOYSTICK_DUMMY 1)
  1601   if(SDL_JOYSTICK AND NOT APPLE) # results in unresolved symbols on OSX
  1602 
  1603     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/dummy/*.c)
  1604     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1605   endif()
  1606 endif()
  1607 if(NOT HAVE_SDL_HAPTIC)
  1608   set(SDL_HAPTIC_DUMMY 1)
  1609   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1610   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1611 endif()
  1612 if(NOT HAVE_SDL_SENSORS)
  1613   set(SDL_SENSOR_DUMMY 1)
  1614   file(GLOB SENSORS_SOURCES ${SDL2_SOURCE_DIR}/src/sensor/dummy/*.c)
  1615   set(SOURCE_FILES ${SOURCE_FILES} ${SENSORS_SOURCES})
  1616 endif()
  1617 if(NOT HAVE_SDL_LOADSO)
  1618   set(SDL_LOADSO_DISABLED 1)
  1619   file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dummy/*.c)
  1620   set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1621 endif()
  1622 if(NOT HAVE_SDL_FILESYSTEM)
  1623   set(SDL_FILESYSTEM_DISABLED 1)
  1624   file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/dummy/*.c)
  1625   set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1626 endif()
  1627 
  1628 # We always need to have threads and timers around
  1629 if(NOT HAVE_SDL_THREADS)
  1630   set(SDL_THREADS_DISABLED 1)
  1631   file(GLOB THREADS_SOURCES ${SDL2_SOURCE_DIR}/src/thread/generic/*.c)
  1632   set(SOURCE_FILES ${SOURCE_FILES} ${THREADS_SOURCES})
  1633 endif()
  1634 if(NOT HAVE_SDL_TIMERS)
  1635   set(SDL_TIMERS_DISABLED 1)
  1636   file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/dummy/*.c)
  1637   set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1638 endif()
  1639 
  1640 if(NOT SDLMAIN_SOURCES)
  1641   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/dummy/*.c)
  1642 endif()
  1643 
  1644 # Append the -MMD -MT flags
  1645 # if(DEPENDENCY_TRACKING)
  1646 #   if(COMPILER_IS_GNUCC)
  1647 #     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MMD -MT \$@")
  1648 #   endif()
  1649 # endif()
  1650 
  1651 configure_file("${SDL2_SOURCE_DIR}/include/SDL_config.h.cmake"
  1652   "${SDL2_BINARY_DIR}/include/SDL_config.h")
  1653 
  1654 # Prepare the flags and remove duplicates
  1655 if(EXTRA_LDFLAGS)
  1656   list(REMOVE_DUPLICATES EXTRA_LDFLAGS)
  1657 endif()
  1658 if(EXTRA_LIBS)
  1659   list(REMOVE_DUPLICATES EXTRA_LIBS)
  1660 endif()
  1661 if(EXTRA_CFLAGS)
  1662   list(REMOVE_DUPLICATES EXTRA_CFLAGS)
  1663 endif()
  1664 listtostr(EXTRA_CFLAGS _EXTRA_CFLAGS)
  1665 set(EXTRA_CFLAGS ${_EXTRA_CFLAGS})
  1666 
  1667 # Compat helpers for the configuration files
  1668 if(NOT WINDOWS OR CYGWIN)
  1669   # TODO: we need a Windows script, too
  1670   execute_process(COMMAND sh ${SDL2_SOURCE_DIR}/build-scripts/updaterev.sh)
  1671 
  1672   set(prefix ${CMAKE_INSTALL_PREFIX})
  1673   set(exec_prefix "\${prefix}")
  1674   set(libdir "\${exec_prefix}/lib${LIB_SUFFIX}")
  1675   set(bindir "\${exec_prefix}/bin")
  1676   set(includedir "\${prefix}/include")
  1677   if(SDL_STATIC)
  1678     set(ENABLE_STATIC_TRUE "")
  1679     set(ENABLE_STATIC_FALSE "#")
  1680   else()
  1681     set(ENABLE_STATIC_TRUE "#")
  1682     set(ENABLE_STATIC_FALSE "")
  1683   endif()
  1684   if(SDL_SHARED)
  1685     set(ENABLE_SHARED_TRUE "")
  1686     set(ENABLE_SHARED_FALSE "#")
  1687   else()
  1688     set(ENABLE_SHARED_TRUE "#")
  1689     set(ENABLE_SHARED_FALSE "")
  1690   endif()
  1691 
  1692   # Clean up the different lists
  1693   listtostr(EXTRA_LIBS _EXTRA_LIBS "-l")
  1694   set(SDL_STATIC_LIBS ${SDL_LIBS} ${EXTRA_LDFLAGS} ${_EXTRA_LIBS})
  1695   list(REMOVE_DUPLICATES SDL_STATIC_LIBS)
  1696   listtostr(SDL_STATIC_LIBS _SDL_STATIC_LIBS)
  1697   set(SDL_STATIC_LIBS ${_SDL_STATIC_LIBS})
  1698   listtostr(SDL_LIBS _SDL_LIBS)
  1699   set(SDL_LIBS ${_SDL_LIBS})
  1700 
  1701   # MESSAGE(STATUS "SDL_LIBS: ${SDL_LIBS}")
  1702   # MESSAGE(STATUS "SDL_STATIC_LIBS: ${SDL_STATIC_LIBS}")
  1703 
  1704   configure_file("${SDL2_SOURCE_DIR}/sdl2.pc.in"
  1705     "${SDL2_BINARY_DIR}/sdl2.pc" @ONLY)
  1706   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1707     "${SDL2_BINARY_DIR}/sdl2-config")
  1708   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1709     "${SDL2_BINARY_DIR}/sdl2-config" @ONLY)
  1710   configure_file("${SDL2_SOURCE_DIR}/SDL2.spec.in"
  1711     "${SDL2_BINARY_DIR}/SDL2.spec" @ONLY)
  1712 endif()
  1713 
  1714 ##### Info output #####
  1715 message(STATUS "")
  1716 message(STATUS "SDL2 was configured with the following options:")
  1717 message(STATUS "")
  1718 message(STATUS "Platform: ${CMAKE_SYSTEM}")
  1719 message(STATUS "64-bit:   ${ARCH_64}")
  1720 message(STATUS "Compiler: ${CMAKE_C_COMPILER}")
  1721 message(STATUS "")
  1722 message(STATUS "Subsystems:")
  1723 foreach(_SUB ${SDL_SUBSYSTEMS})
  1724   string(TOUPPER ${_SUB} _OPT)
  1725   message_bool_option(${_SUB} SDL_${_OPT})
  1726 endforeach()
  1727 message(STATUS "")
  1728 message(STATUS "Options:")
  1729 list(SORT ALLOPTIONS)
  1730 foreach(_OPT ${ALLOPTIONS})
  1731   # Longest option is VIDEO_X11_XSCREENSAVER = 22 characters
  1732   # Get the padding
  1733   string(LENGTH ${_OPT} _OPTLEN)
  1734   math(EXPR _PADLEN "23 - ${_OPTLEN}")
  1735   string(RANDOM LENGTH ${_PADLEN} ALPHABET " " _PADDING)
  1736   message_tested_option(${_OPT} ${_PADDING})
  1737 endforeach()
  1738 message(STATUS "")
  1739 message(STATUS " CFLAGS:        ${CMAKE_C_FLAGS}")
  1740 message(STATUS " EXTRA_CFLAGS:  ${EXTRA_CFLAGS}")
  1741 message(STATUS " EXTRA_LDFLAGS: ${EXTRA_LDFLAGS}")
  1742 message(STATUS " EXTRA_LIBS:    ${EXTRA_LIBS}")
  1743 message(STATUS "")
  1744 message(STATUS " Build Shared Library: ${SDL_SHARED}")
  1745 message(STATUS " Build Static Library: ${SDL_STATIC}")
  1746 if(SDL_STATIC)
  1747     message(STATUS " Build Static Library with Position Independent Code: ${SDL_STATIC_PIC}")
  1748 endif()
  1749 message(STATUS "")
  1750 if(UNIX)
  1751   message(STATUS "If something was not detected, although the libraries")
  1752   message(STATUS "were installed, then make sure you have set the")
  1753   message(STATUS "CFLAGS and LDFLAGS environment variables correctly.")
  1754   message(STATUS "")
  1755 endif()
  1756 
  1757 # Ensure that the extra cflags are used at compile time
  1758 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
  1759 
  1760 # Always build SDLmain
  1761 add_library(SDL2main STATIC ${SDLMAIN_SOURCES})
  1762 target_include_directories(SDL2main PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:include/SDL2>)
  1763 set(_INSTALL_LIBS "SDL2main")
  1764 if (NOT ANDROID)
  1765   set_target_properties(SDL2main PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1766 endif()
  1767 
  1768 if(SDL_SHARED)
  1769   add_library(SDL2 SHARED ${SOURCE_FILES} ${VERSION_SOURCES})
  1770   if(APPLE)
  1771     set_target_properties(SDL2 PROPERTIES
  1772       MACOSX_RPATH 1
  1773       OUTPUT_NAME "SDL2-${LT_RELEASE}")
  1774   elseif(UNIX AND NOT ANDROID)
  1775     set_target_properties(SDL2 PROPERTIES
  1776       VERSION ${LT_VERSION}
  1777       SOVERSION ${LT_REVISION}
  1778       OUTPUT_NAME "SDL2-${LT_RELEASE}")
  1779   else()
  1780     set_target_properties(SDL2 PROPERTIES
  1781       VERSION ${SDL_VERSION}
  1782       SOVERSION ${LT_REVISION}
  1783       OUTPUT_NAME "SDL2")
  1784   endif()
  1785   if(MSVC AND NOT LIBC)
  1786     # Don't try to link with the default set of libraries.
  1787     set_target_properties(SDL2 PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1788     set_target_properties(SDL2 PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1789     set_target_properties(SDL2 PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1790   endif()
  1791   set(_INSTALL_LIBS "SDL2" ${_INSTALL_LIBS})
  1792   target_link_libraries(SDL2 ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1793   target_include_directories(SDL2 PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:include/SDL2>)
  1794   if (NOT ANDROID)
  1795     set_target_properties(SDL2 PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1796   endif()
  1797 endif()
  1798 
  1799 if(ANDROID)
  1800   add_library(hidapi SHARED ${ANDROID_HIDAPI_SOURCES})
  1801   if(MSVC AND NOT LIBC)
  1802     # Don't try to link with the default set of libraries.
  1803     set_target_properties(hidapi PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1804     set_target_properties(hidapi PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1805     set_target_properties(hidapi PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1806   endif()
  1807   target_link_libraries(hidapi log)
  1808 endif()
  1809 
  1810 if(SDL_STATIC)
  1811   set (BUILD_SHARED_LIBS FALSE)
  1812   add_library(SDL2-static STATIC ${SOURCE_FILES})
  1813   if (NOT SDL_SHARED OR NOT WIN32)
  1814     set_target_properties(SDL2-static PROPERTIES OUTPUT_NAME "SDL2")
  1815     # Note: Apparently, OUTPUT_NAME must really be unique; even when
  1816     # CMAKE_IMPORT_LIBRARY_SUFFIX or the like are given. Otherwise
  1817     # the static build may race with the import lib and one will get
  1818     # clobbered, when the suffix is realized via subsequent rename.
  1819   endif()
  1820   set_target_properties(SDL2-static PROPERTIES POSITION_INDEPENDENT_CODE ${SDL_STATIC_PIC})
  1821   if(MSVC AND NOT LIBC)
  1822     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1823     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1824     set_target_properties(SDL2-static PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1825   endif()
  1826   # TODO: Win32 platforms keep the same suffix .lib for import and static
  1827   # libraries - do we need to consider this?
  1828   set(_INSTALL_LIBS "SDL2-static" ${_INSTALL_LIBS})
  1829   target_link_libraries(SDL2-static ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1830   target_include_directories(SDL2-static PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:include/SDL2>)
  1831   if (NOT ANDROID)
  1832     set_target_properties(SDL2-static PROPERTIES DEBUG_POSTFIX ${SDL_CMAKE_DEBUG_POSTFIX})
  1833   endif()
  1834 endif()
  1835 
  1836 ##### Tests #####
  1837 
  1838 if(SDL_TEST)
  1839   file(GLOB TEST_SOURCES ${SDL2_SOURCE_DIR}/src/test/*.c)
  1840   add_library(SDL2_test STATIC ${TEST_SOURCES})
  1841 
  1842   add_subdirectory(test)
  1843 endif()
  1844 
  1845 ##### Installation targets #####
  1846 install(TARGETS ${_INSTALL_LIBS} EXPORT SDL2Targets
  1847   LIBRARY DESTINATION "lib${LIB_SUFFIX}"
  1848   ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
  1849   RUNTIME DESTINATION bin)
  1850 
  1851 ##### Export files #####
  1852 if (WINDOWS)
  1853   set(PKG_PREFIX "cmake")
  1854 else ()
  1855   set(PKG_PREFIX "lib/cmake/SDL2")
  1856 endif ()
  1857 
  1858 include(CMakePackageConfigHelpers)
  1859 write_basic_package_version_file("${CMAKE_BINARY_DIR}/SDL2ConfigVersion.cmake"
  1860   VERSION ${SDL_VERSION}
  1861   COMPATIBILITY AnyNewerVersion
  1862 )
  1863 
  1864 install(EXPORT SDL2Targets
  1865   FILE SDL2Targets.cmake
  1866   NAMESPACE SDL2::
  1867   DESTINATION ${PKG_PREFIX}
  1868 )
  1869 install(
  1870   FILES
  1871     ${CMAKE_CURRENT_SOURCE_DIR}/SDL2Config.cmake
  1872     ${CMAKE_BINARY_DIR}/SDL2ConfigVersion.cmake
  1873   DESTINATION ${PKG_PREFIX}
  1874   COMPONENT Devel
  1875 )
  1876 
  1877 file(GLOB INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/*.h)
  1878 file(GLOB BIN_INCLUDE_FILES ${SDL2_BINARY_DIR}/include/*.h)
  1879 foreach(_FNAME ${BIN_INCLUDE_FILES})
  1880   get_filename_component(_INCNAME ${_FNAME} NAME)
  1881   list(REMOVE_ITEM INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/${_INCNAME})
  1882 endforeach()
  1883 list(APPEND INCLUDE_FILES ${BIN_INCLUDE_FILES})
  1884 install(FILES ${INCLUDE_FILES} DESTINATION include/SDL2)
  1885 
  1886 string(TOUPPER "${CMAKE_BUILD_TYPE}" UPPER_BUILD_TYPE)
  1887 if (UPPER_BUILD_TYPE MATCHES DEBUG)
  1888   set(SOPOSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
  1889 else()
  1890   set(SOPOSTFIX "")
  1891 endif()
  1892 
  1893 if(NOT (WINDOWS OR CYGWIN))
  1894   if(SDL_SHARED)
  1895     set(SOEXT ${CMAKE_SHARED_LIBRARY_SUFFIX}) # ".so", ".dylib", etc.
  1896     get_target_property(SONAME SDL2 OUTPUT_NAME)
  1897     if(NOT ANDROID)
  1898         install(CODE "
  1899           execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink
  1900             \"lib${SONAME}${SOPOSTFIX}${SOEXT}\" \"libSDL2${SOPOSTFIX}${SOEXT}\"
  1901             WORKING_DIRECTORY \"${SDL2_BINARY_DIR}\")")
  1902         install(FILES ${SDL2_BINARY_DIR}/libSDL2${SOPOSTFIX}${SOEXT} DESTINATION "lib${LIB_SUFFIX}")
  1903     endif()
  1904   endif()
  1905   if(FREEBSD)
  1906     # FreeBSD uses ${PREFIX}/libdata/pkgconfig
  1907     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc DESTINATION "libdata/pkgconfig")
  1908   else()
  1909     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc
  1910       DESTINATION "lib${LIB_SUFFIX}/pkgconfig")
  1911   endif()
  1912   install(PROGRAMS ${SDL2_BINARY_DIR}/sdl2-config DESTINATION bin)
  1913   # TODO: what about the .spec file? Is it only needed for RPM creation?
  1914   install(FILES "${SDL2_SOURCE_DIR}/sdl2.m4" DESTINATION "${CMAKE_INSTALL_FULL_DATAROOTDIR}/aclocal")
  1915 endif()
  1916 
  1917 ##### Uninstall target #####
  1918 
  1919 if(NOT TARGET uninstall)
  1920   configure_file(
  1921       "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
  1922       "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
  1923       IMMEDIATE @ONLY)
  1924 
  1925   add_custom_target(uninstall
  1926       COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
  1927 endif()