CMakeLists.txt
author Ryan C. Gordon <icculus@icculus.org>
Sun, 07 Jun 2015 20:15:09 -0400
changeset 9717 45a632fd9d83
parent 9571 5e3a1adadfbb
child 9731 a8140c580b85
permissions -rw-r--r--
CMake: default to shared library builds being enabled.
     1 if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
     2   message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL source code and call cmake from there")
     3 endif()
     4 
     5 cmake_minimum_required(VERSION 2.8)
     6 project(SDL2 C)
     7 include(CheckFunctionExists)
     8 include(CheckLibraryExists)
     9 include(CheckIncludeFiles)
    10 include(CheckIncludeFile)
    11 include(CheckSymbolExists)
    12 include(CheckCSourceRuns)
    13 include(CheckCCompilerFlag)
    14 include(CheckTypeSize)
    15 include(CheckStructHasMember)
    16 include(CMakeDependentOption)
    17 include(FindPkgConfig)
    18 set(CMAKE_MODULE_PATH "${SDL2_SOURCE_DIR}/cmake")
    19 include(${SDL2_SOURCE_DIR}/cmake/macros.cmake)
    20 include(${SDL2_SOURCE_DIR}/cmake/sdlchecks.cmake)
    21 
    22 # General settings
    23 # Edit include/SDL_version.h and change the version, then:
    24 #   SDL_MICRO_VERSION += 1;
    25 #   SDL_INTERFACE_AGE += 1;
    26 #   SDL_BINARY_AGE += 1;
    27 # if any functions have been added, set SDL_INTERFACE_AGE to 0.
    28 # if backwards compatibility has been broken,
    29 # set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.
    30 set(SDL_MAJOR_VERSION 2)
    31 set(SDL_MINOR_VERSION 0)
    32 set(SDL_MICRO_VERSION 4)
    33 set(SDL_INTERFACE_AGE 0)
    34 set(SDL_BINARY_AGE 4)
    35 set(SDL_VERSION "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}.${SDL_MICRO_VERSION}")
    36 
    37 # Calculate a libtool-like version number
    38 math(EXPR LT_CURRENT "${SDL_MICRO_VERSION} - ${SDL_INTERFACE_AGE}")
    39 math(EXPR LT_AGE "${SDL_BINARY_AGE} - ${SDL_INTERFACE_AGE}")
    40 math(EXPR LT_MAJOR "${LT_CURRENT}- ${LT_AGE}")
    41 set(LT_REVISION "${SDL_INTERFACE_AGE}")
    42 set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")
    43 set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}")
    44 
    45 message(STATUS "${LT_VERSION} :: ${LT_AGE} :: ${LT_REVISION} :: ${LT_CURRENT} :: ${LT_RELEASE}")
    46 
    47 # General settings & flags
    48 set(LIBRARY_OUTPUT_DIRECTORY "build")
    49 # Check for 64 or 32 bit
    50 set(SIZEOF_VOIDP ${CMAKE_SIZEOF_VOID_P})
    51 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
    52   set(ARCH_64 TRUE)
    53   set(PROCESSOR_ARCH "x64")
    54 else()
    55   set(ARCH_64 FALSE)
    56   set(PROCESSOR_ARCH "x86")
    57 endif()
    58 set(LIBNAME SDL2)
    59 if(NOT LIBTYPE)
    60   set(LIBTYPE SHARED)
    61 endif()
    62 
    63 # Get the platform
    64 if(WIN32)
    65   if(NOT WINDOWS)
    66     set(WINDOWS TRUE)
    67   endif()
    68 elseif(UNIX AND NOT APPLE)
    69   if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")
    70     set(LINUX TRUE)
    71   elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD.*")
    72     set(FREEBSD TRUE)
    73   elseif(CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")
    74     set(NETBSD TRUE)
    75   elseif(CMAKE_SYSTEM_NAME MATCHES "kOpenBSD.*|OpenBSD.*")
    76     set(OPENBSD TRUE)
    77   elseif(CMAKE_SYSTEM_NAME MATCHES ".*GNU.*")
    78     set(GNU TRUE)
    79   elseif(CMAKE_SYSTEM_NAME MATCHES ".*BSDI.*")
    80     set(BSDI TRUE)
    81   elseif(CMAKE_SYSTEM_NAME MATCHES "DragonFly.*|FreeBSD")
    82     set(FREEBSD TRUE)
    83   elseif(CMAKE_SYSTEM_NAME MATCHES "SYSV5.*")
    84     set(SYSV5 TRUE)
    85   elseif(CMAKE_SYSTEM_NAME MATCHES "Solaris.*")
    86     set(SOLARIS TRUE)
    87   elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX.*")
    88     set(HPUX TRUE)
    89   elseif(CMAKE_SYSTEM_NAME MATCHES "AIX.*")
    90     set(AIX TRUE)
    91   elseif(CMAKE_SYSTEM_NAME MATCHES "Minix.*")
    92     set(MINIX TRUE)
    93   endif()
    94 elseif(APPLE)
    95   if(CMAKE_SYSTEM_NAME MATCHES ".*Darwin.*")
    96     set(DARWIN TRUE)
    97   elseif(CMAKE_SYSTEM_NAME MATCHES ".*MacOS.*")
    98     set(MACOSX TRUE)
    99   endif()
   100   # TODO: iOS?
   101 elseif(CMAKE_SYSTEM_NAME MATCHES "BeOS.*")
   102   message_error("BeOS support has been removed as of SDL 2.0.2.")
   103 elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku.*")
   104   set(HAIKU TRUE)
   105 endif()
   106 
   107 # Don't mistake osx for unix
   108 if(UNIX AND NOT APPLE)
   109   set(UNIX_SYS ON)
   110 else()
   111   set(UNIX_SYS OFF)
   112 endif()
   113 
   114 if(UNIX OR APPLE)
   115   set(UNIX_OR_MAC_SYS ON)
   116 else()
   117   set(UNIX_OR_MAC_SYS OFF)
   118 endif()
   119 
   120 if (UNIX_OR_MAC_SYS AND NOT EMSCRIPTEN) # JavaScript does not yet have threading support, so disable pthreads when building for Emscripten.
   121   set(SDL_PTHREADS_ENABLED_BY_DEFAULT ON)
   122 else()
   123   set(SDL_PTHREADS_ENABLED_BY_DEFAULT OFF)
   124 endif()
   125 
   126 # Default option knobs
   127 if(APPLE OR ARCH_64)
   128   set(OPT_DEF_SSEMATH ON)
   129 endif()
   130 if(UNIX OR MINGW OR MSYS)
   131   set(OPT_DEF_LIBC ON)
   132 endif()
   133 
   134 # Compiler info
   135 if(CMAKE_COMPILER_IS_GNUCC)
   136   set(USE_GCC TRUE)
   137   set(OPT_DEF_ASM TRUE)
   138 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
   139   set(USE_CLANG TRUE)
   140   set(OPT_DEF_ASM TRUE)
   141 elseif(MSVC_VERSION GREATER 1400) # VisualStudio 8.0+
   142   set(OPT_DEF_ASM TRUE)
   143   #set(CMAKE_C_FLAGS "/ZI /WX- /
   144 else()
   145   set(OPT_DEF_ASM FALSE)
   146 endif()
   147 
   148 # Default flags, if not set otherwise
   149 if("$ENV{CFLAGS}" STREQUAL "")
   150   if(USE_GCC OR USE_CLANG)
   151     set(CMAKE_C_FLAGS "-g -O3")
   152   endif()
   153 else()
   154   set(CMAKE_C_FLAGS "$ENV{CFLAGS}")
   155   list(APPEND EXTRA_CFLAGS "$ENV{CFLAGS}")
   156 endif()
   157 if(NOT ("$ENV{CFLAGS}" STREQUAL "")) # Hackish, but does the trick on Win32
   158   list(APPEND EXTRA_LDFLAGS "$ENV{LDFLAGS}")
   159 endif()
   160 
   161 if(MSVC)
   162   option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
   163   if(FORCE_STATIC_VCRT)
   164     foreach(flag_var
   165         CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
   166         CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
   167       if(${flag_var} MATCHES "/MD")
   168         string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
   169       endif()
   170     endforeach()
   171   endif()
   172 endif()
   173 
   174 # Those are used for pkg-config and friends, so that the SDL2.pc, sdl2-config,
   175 # etc. are created correctly.
   176 set(SDL_LIBS "-lSDL2")
   177 set(SDL_CFLAGS "")
   178 
   179 # Emscripten toolchain has a nonempty default value for this, and the checks 
   180 # in this file need to change that, so remember the original value, and 
   181 # restore back to that afterwards. For check_function_exists() to work in
   182 # Emscripten, this value must be at its default value.
   183 set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
   184 
   185 if(CYGWIN)
   186   # We build SDL on cygwin without the UNIX emulation layer
   187   include_directories("-I/usr/include/mingw")
   188   set(CMAKE_REQUIRED_FLAGS "-mno-cygwin")
   189   check_c_source_compiles("int main(int argc, char **argv) {}"
   190     HAVE_GCC_NO_CYGWIN)
   191   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   192   if(HAVE_GCC_NO_CYGWIN)
   193     list(APPEND EXTRA_LDFLAGS "-mno-cygwin")
   194     list(APPEND SDL_LIBS "-mno-cygwin")
   195   endif()
   196   set(SDL_CFLAGS "${SDL_CFLAGS} -I/usr/include/mingw")
   197 endif()
   198 
   199 add_definitions(-DUSING_GENERATED_CONFIG_H)
   200 # General includes
   201 include_directories(${SDL2_BINARY_DIR}/include ${SDL2_SOURCE_DIR}/include)
   202 
   203 # All these ENABLED_BY_DEFAULT vars will default to ON if not specified, so
   204 #  you only need to have a platform override them if they are disabling.
   205 set(OPT_DEF_ASM TRUE)
   206 if(EMSCRIPTEN)
   207   # Set up default values for the currently supported set of subsystems:
   208   # Emscripten/Javascript does not have assembly support, a dynamic library 
   209   # loading architecture, low-level CPU inspection or multithreading.
   210   set(OPT_DEF_ASM FALSE)
   211   set(SDL_SHARED_ENABLED_BY_DEFAULT OFF)
   212   set(SDL_ATOMIC_ENABLED_BY_DEFAULT OFF)
   213   set(SDL_THREADS_ENABLED_BY_DEFAULT OFF)
   214   set(SDL_LOADSO_ENABLED_BY_DEFAULT OFF)
   215   set(SDL_CPUINFO_ENABLED_BY_DEFAULT OFF)
   216   set(SDL_DLOPEN_ENABLED_BY_DEFAULT OFF)
   217 endif()
   218 
   219 if (NOT DEFINED SDL_SHARED_ENABLED_BY_DEFAULT)
   220     set(SDL_SHARED_ENABLED_BY_DEFAULT ON)
   221 endif()
   222 
   223 set(SDL_SUBSYSTEMS
   224     Atomic Audio Video Render Events Joystick Haptic Power Threads Timers
   225     File Loadso CPUinfo Filesystem Dlopen)
   226 foreach(_SUB ${SDL_SUBSYSTEMS})
   227   string(TOUPPER ${_SUB} _OPT)
   228   if (NOT DEFINED SDL_${_OPT}_ENABLED_BY_DEFAULT)
   229     set(SDL_${_OPT}_ENABLED_BY_DEFAULT ON)
   230   endif()
   231   option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ${SDL_${_OPT}_ENABLED_BY_DEFAULT})
   232 endforeach()
   233 
   234 option_string(ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
   235 #set_option(DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)
   236 set_option(LIBC                "Use the system C library" ${OPT_DEF_LIBC})
   237 set_option(GCC_ATOMICS         "Use gcc builtin atomics" ${USE_GCC})
   238 set_option(ASSEMBLY            "Enable assembly routines" ${OPT_DEF_ASM})
   239 set_option(SSEMATH             "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})
   240 set_option(MMX                 "Use MMX assembly routines" ${OPT_DEF_ASM})
   241 set_option(3DNOW               "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})
   242 set_option(SSE                 "Use SSE assembly routines" ${OPT_DEF_ASM})
   243 set_option(SSE2                "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})
   244 set_option(ALTIVEC             "Use Altivec assembly routines" ${OPT_DEF_ASM})
   245 set_option(DISKAUDIO           "Support the disk writer audio driver" ON)
   246 set_option(DUMMYAUDIO          "Support the dummy audio driver" ON)
   247 set_option(VIDEO_DIRECTFB      "Use DirectFB video driver" OFF)
   248 dep_option(DIRECTFB_SHARED     "Dynamically load directfb support" ON "VIDEO_DIRECTFB" OFF)
   249 set_option(FUSIONSOUND         "Use FusionSound audio driver" OFF)
   250 dep_option(FUSIONSOUND_SHARED  "Dynamically load fusionsound audio support" ON "FUSIONSOUND" OFF)
   251 set_option(VIDEO_DUMMY         "Use dummy video driver" ON)
   252 set_option(VIDEO_OPENGL        "Include OpenGL support" ON)
   253 set_option(VIDEO_OPENGLES      "Include OpenGL ES support" ON)
   254 set_option(PTHREADS            "Use POSIX threads for multi-threading" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
   255 dep_option(PTHREADS_SEM        "Use pthread semaphores" ON "PTHREADS" OFF)
   256 set_option(SDL_DLOPEN          "Use dlopen for shared object loading" ${SDL_DLOPEN_ENABLED_BY_DEFAULT})
   257 set_option(OSS                 "Support the OSS audio API" ${UNIX_SYS})
   258 set_option(ALSA                "Support the ALSA audio API" ${UNIX_SYS})
   259 dep_option(ALSA_SHARED         "Dynamically load ALSA audio support" ON "ALSA" OFF)
   260 set_option(ESD                 "Support the Enlightened Sound Daemon" ${UNIX_SYS})
   261 dep_option(ESD_SHARED          "Dynamically load ESD audio support" ON "ESD" OFF)
   262 set_option(PULSEAUDIO          "Use PulseAudio" ${UNIX_SYS})
   263 dep_option(PULSEAUDIO_SHARED   "Dynamically load PulseAudio support" ON "PULSEAUDIO" OFF)
   264 set_option(ARTS                "Support the Analog Real Time Synthesizer" ${UNIX_SYS})
   265 dep_option(ARTS_SHARED         "Dynamically load aRts audio support" ON "ARTS" OFF)
   266 set_option(NAS                 "Support the NAS audio API" ${UNIX_SYS})
   267 set_option(NAS_SHARED          "Dynamically load NAS audio API" ${UNIX_SYS})
   268 set_option(SNDIO               "Support the sndio audio API" ${UNIX_SYS})
   269 set_option(RPATH               "Use an rpath when linking SDL" ${UNIX_SYS})
   270 set_option(CLOCK_GETTIME       "Use clock_gettime() instead of gettimeofday()" OFF)
   271 set_option(INPUT_TSLIB         "Use the Touchscreen library for input" ${UNIX_SYS})
   272 set_option(VIDEO_X11           "Use X11 video driver" ${UNIX_SYS})
   273 set_option(VIDEO_WAYLAND       "Use Wayland video driver" ${UNIX_SYS})
   274 dep_option(WAYLAND_SHARED      "Dynamically load Wayland support" ON "VIDEO_WAYLAND" OFF)
   275 dep_option(VIDEO_WAYLAND_QT_TOUCH  "QtWayland server support for Wayland video driver" ON "VIDEO_WAYLAND" OFF)
   276 set_option(VIDEO_MIR           "Use Mir video driver" ${UNIX_SYS})
   277 dep_option(MIR_SHARED          "Dynamically load Mir support" ON "VIDEO_MIR" OFF)
   278 set_option(VIDEO_RPI           "Use Raspberry Pi video driver" ${UNIX_SYS})
   279 dep_option(X11_SHARED          "Dynamically load X11 support" ON "VIDEO_X11" OFF)
   280 set(SDL_X11_OPTIONS Xcursor Xinerama XInput Xrandr Xscrnsaver XShape Xvm)
   281 foreach(_SUB ${SDL_X11_OPTIONS})
   282   string(TOUPPER "VIDEO_X11_${_SUB}" _OPT)
   283   dep_option(${_OPT}           "Enable ${_SUB} support" ON "VIDEO_X11" OFF)
   284 endforeach()
   285 set_option(VIDEO_COCOA         "Use Cocoa video driver" ${APPLE})
   286 set_option(DIRECTX             "Use DirectX for Windows audio/video" ${WINDOWS})
   287 set_option(RENDER_D3D          "Enable the Direct3D render driver" ${WINDOWS})
   288 set_option(VIDEO_VIVANTE       "Use Vivante EGL video driver" ${UNIX_SYS})
   289 
   290 # TODO: We should (should we?) respect cmake's ${BUILD_SHARED_LIBS} flag here
   291 # The options below are for compatibility to configure's default behaviour.
   292 set(SDL_SHARED ${SDL_SHARED_ENABLED_BY_DEFAULT} CACHE BOOL "Build a shared version of the library")
   293 set(SDL_STATIC ON CACHE BOOL "Build a static version of the library")
   294 
   295 # General source files
   296 file(GLOB SOURCE_FILES
   297   ${SDL2_SOURCE_DIR}/src/*.c
   298   ${SDL2_SOURCE_DIR}/src/atomic/*.c
   299   ${SDL2_SOURCE_DIR}/src/audio/*.c
   300   ${SDL2_SOURCE_DIR}/src/cpuinfo/*.c
   301   ${SDL2_SOURCE_DIR}/src/dynapi/*.c
   302   ${SDL2_SOURCE_DIR}/src/events/*.c
   303   ${SDL2_SOURCE_DIR}/src/file/*.c
   304   ${SDL2_SOURCE_DIR}/src/libm/*.c
   305   ${SDL2_SOURCE_DIR}/src/render/*.c
   306   ${SDL2_SOURCE_DIR}/src/render/*/*.c
   307   ${SDL2_SOURCE_DIR}/src/stdlib/*.c
   308   ${SDL2_SOURCE_DIR}/src/thread/*.c
   309   ${SDL2_SOURCE_DIR}/src/timer/*.c
   310   ${SDL2_SOURCE_DIR}/src/video/*.c)
   311 
   312 
   313 if(ASSERTIONS STREQUAL "auto")
   314   # Do nada - use optimization settings to determine the assertion level
   315 elseif(ASSERTIONS STREQUAL "disabled")
   316   set(SDL_DEFAULT_ASSERT_LEVEL 0)
   317 elseif(ASSERTIONS STREQUAL "release")
   318   set(SDL_DEFAULT_ASSERT_LEVEL 1)
   319 elseif(ASSERTIONS STREQUAL "enabled")
   320   set(SDL_DEFAULT_ASSERT_LEVEL 2)
   321 elseif(ASSERTIONS STREQUAL "paranoid")
   322   set(SDL_DEFAULT_ASSERT_LEVEL 3)
   323 else()
   324   message_error("unknown assertion level")
   325 endif()
   326 set(HAVE_ASSERTIONS ${ASSERTIONS})
   327 
   328 # Compiler option evaluation
   329 if(USE_GCC OR USE_CLANG)
   330   if(DEPENDENCY_TRACKING)
   331     check_c_source_compiles("
   332         #if !defined(__GNUC__) || __GNUC__ < 3
   333         #error Dependency tracking requires GCC 3.0 or newer
   334         #endif
   335         int main(int argc, char **argv) { }" HAVE_DEPENDENCY_TRACKING)
   336   endif()
   337 
   338   if(GCC_ATOMICS)
   339     check_c_source_compiles("int main(int argc, char **argv) {
   340         int a;
   341         void *x, *y, *z;
   342         __sync_lock_test_and_set(&a, 4);
   343         __sync_lock_test_and_set(&x, y);
   344         __sync_fetch_and_add(&a, 1);
   345         __sync_bool_compare_and_swap(&a, 5, 10);
   346         __sync_bool_compare_and_swap(&x, y, z); }" HAVE_GCC_ATOMICS)
   347     if(NOT HAVE_GCC_ATOMICS)
   348       check_c_source_compiles("int main(int argc, char **argv) {
   349           int a;
   350           __sync_lock_test_and_set(&a, 1);
   351           __sync_lock_release(&a); }" HAVE_GCC_SYNC_LOCK_TEST_AND_SET)
   352     endif()
   353   endif()
   354 
   355   set(CMAKE_REQUIRED_FLAGS "-mpreferred-stack-boundary=2")
   356   check_c_source_compiles("int x = 0; int main(int argc, char **argv) {}"
   357     HAVE_GCC_PREFERRED_STACK_BOUNDARY)
   358   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   359 
   360   set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden -Werror")
   361   check_c_source_compiles("
   362       #if !defined(__GNUC__) || __GNUC__ < 4
   363       #error SDL only uses visibility attributes in GCC 4 or newer
   364       #endif
   365       int main(int argc, char **argv) {}" HAVE_GCC_FVISIBILITY)
   366   if(HAVE_GCC_FVISIBILITY)
   367     list(APPEND EXTRA_CFLAGS "-fvisibility=hidden")
   368   endif()
   369   set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   370 
   371   check_c_compiler_flag(-Wall HAVE_GCC_WALL)
   372   if(HAVE_GCC_WALL)
   373     list(APPEND EXTRA_CFLAGS "-Wall")
   374     if(HAIKU)
   375       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-multichar")
   376     endif()
   377   endif()
   378   check_c_compiler_flag(-Wshadow HAVE_GCC_WSHADOW)
   379   if(HAVE_GCC_WSHADOW)
   380     list(APPEND EXTRA_CFLAGS "-Wshadow")
   381   endif()
   382 
   383   set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
   384   check_c_compiler_flag("" HAVE_NO_UNDEFINED)
   385   set(CMAKE_REQUIRED_FLAGS)
   386   if(HAVE_NO_UNDEFINED)
   387     list(APPEND EXTRA_LDFLAGS "-Wl,--no-undefined")
   388   endif()
   389 endif()
   390 
   391 if(ASSEMBLY)
   392   if(USE_GCC OR USE_CLANG)
   393     set(SDL_ASSEMBLY_ROUTINES 1)
   394     # TODO: Those all seem to be quite GCC specific - needs to be
   395     # reworked for better compiler support
   396     set(HAVE_ASSEMBLY TRUE)
   397     if(MMX)
   398       set(CMAKE_REQUIRED_FLAGS "-mmmx")
   399       check_c_source_compiles("
   400           #ifdef __MINGW32__
   401           #include <_mingw.h>
   402           #ifdef __MINGW64_VERSION_MAJOR
   403           #include <intrin.h>
   404           #else
   405           #include <mmintrin.h>
   406           #endif
   407           #else
   408           #include <mmintrin.h>
   409           #endif
   410           #ifndef __MMX__
   411           #error Assembler CPP flag not enabled
   412           #endif
   413           int main(int argc, char **argv) { }" HAVE_MMX)
   414       if(HAVE_MMX)
   415         list(APPEND EXTRA_CFLAGS "-mmmx")
   416       endif()
   417       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   418     endif()
   419 
   420     if(3DNOW)
   421       set(CMAKE_REQUIRED_FLAGS "-m3dnow")
   422       check_c_source_compiles("
   423           #include <mm3dnow.h>
   424           #ifndef __3dNOW__
   425           #error Assembler CPP flag not enabled
   426           #endif
   427           int main(int argc, char **argv) {
   428             void *p = 0;
   429             _m_prefetch(p);
   430           }" HAVE_3DNOW)
   431       if(HAVE_3DNOW)
   432         list(APPEND EXTRA_CFLAGS "-m3dnow")
   433       endif()
   434       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   435     endif()
   436 
   437     if(SSE)
   438       set(CMAKE_REQUIRED_FLAGS "-msse")
   439       check_c_source_compiles("
   440           #ifdef __MINGW32__
   441           #include <_mingw.h>
   442           #ifdef __MINGW64_VERSION_MAJOR
   443           #include <intrin.h>
   444           #else
   445           #include <xmmintrin.h>
   446           #endif
   447           #else
   448           #include <xmmintrin.h>
   449           #endif
   450           #ifndef __SSE__
   451           #error Assembler CPP flag not enabled
   452           #endif
   453           int main(int argc, char **argv) { }" HAVE_SSE)
   454       if(HAVE_SSE)
   455         list(APPEND EXTRA_CFLAGS "-msse")
   456       endif()
   457       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   458     endif()
   459 
   460     if(SSE2)
   461       set(CMAKE_REQUIRED_FLAGS "-msse2")
   462       check_c_source_compiles("
   463           #ifdef __MINGW32__
   464           #include <_mingw.h>
   465           #ifdef __MINGW64_VERSION_MAJOR
   466           #include <intrin.h>
   467           #else
   468           #include <emmintrin.h>
   469           #endif
   470           #else
   471           #include <emmintrin.h>
   472           #endif
   473           #ifndef __SSE2__
   474           #error Assembler CPP flag not enabled
   475           #endif
   476           int main(int argc, char **argv) { }" HAVE_SSE2)
   477       if(HAVE_SSE2)
   478         list(APPEND EXTRA_CFLAGS "-msse2")
   479       endif()
   480       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   481     endif()
   482 
   483     if(SSEMATH)
   484       if(SSE OR SSE2)
   485         if(USE_GCC)
   486           list(APPEND EXTRA_CFLAGS "-mfpmath=387")
   487         endif()
   488         set(HAVE_SSEMATH TRUE)
   489       endif()
   490     endif()
   491 
   492     if(ALTIVEC)
   493       set(CMAKE_REQUIRED_FLAGS "-maltivec")
   494       check_c_source_compiles("
   495           #include <altivec.h>
   496           vector unsigned int vzero() {
   497               return vec_splat_u32(0);
   498           }
   499           int main(int argc, char **argv) { }" HAVE_ALTIVEC_H_HDR)
   500       check_c_source_compiles("
   501           vector unsigned int vzero() {
   502               return vec_splat_u32(0);
   503           }
   504           int main(int argc, char **argv) { }" HAVE_ALTIVEC)
   505       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   506       if(HAVE_ALTIVEC OR HAVE_ALTIVEC_H_HDR)
   507         set(HAVE_ALTIVEC TRUE) # if only HAVE_ALTIVEC_H_HDR is set
   508         list(APPEND EXTRA_CFLAGS "-maltivec")
   509         set(SDL_ALTIVEC_BLITTERS 1)
   510         if(HAVE_ALTIVEC_H_HDR)
   511           set(HAVE_ALTIVEC_H 1)
   512         endif()
   513       endif()
   514     endif()
   515   elseif(MSVC_VERSION GREATER 1500)
   516     # TODO: SDL_cpuinfo.h needs to support the user's configuration wish
   517     # for MSVC - right now it is always activated
   518     if(NOT ARCH_64)
   519       set(HAVE_MMX TRUE)
   520       set(HAVE_3DNOW TRUE)
   521     endif()
   522     set(HAVE_SSE TRUE)
   523     set(HAVE_SSE2 TRUE)
   524     set(SDL_ASSEMBLY_ROUTINES 1)
   525   endif()
   526 # TODO:
   527 #else()
   528 #  if(USE_GCC OR USE_CLANG)
   529 #    list(APPEND EXTRA_CFLAGS "-mno-sse" "-mno-sse2" "-mno-mmx")
   530 #  endif()
   531 endif()
   532 
   533 # TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define
   534 # anything.
   535 if(LIBC)
   536   if(WINDOWS AND NOT MINGW)
   537     set(HAVE_LIBC TRUE)
   538     foreach(_HEADER stdio.h string.h ctype.h math.h)
   539       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   540       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   541       set(${_HAVE_H} 1)
   542     endforeach()
   543     set(HAVE_SIGNAL_H 1)
   544     foreach(_FN
   545             malloc calloc realloc free qsort abs memset memcpy memmove memcmp
   546             strlen _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   547             _ultoa strtol strtoul strtoll strtod atoi atof strcmp strncmp
   548             _stricmp _strnicmp sscanf atan atan2 acos asin ceil copysign cos
   549             cosf fabs floor log pow scalbn sin sinf sqrt sqrtf tan tanf)
   550       string(TOUPPER ${_FN} _UPPER)
   551       set(HAVE_${_UPPER} 1)
   552     endforeach()
   553     if(NOT CYGWIN AND NOT MINGW)
   554       set(HAVE_ALLOCA 1)
   555     endif()
   556     set(HAVE_M_PI 1)
   557     add_definitions(-D_USE_MATH_DEFINES) # needed for M_PI
   558     set(STDC_HEADERS 1)
   559   else()
   560     set(HAVE_LIBC TRUE)
   561     check_include_file(sys/types.h HAVE_SYS_TYPES_H)
   562     foreach(_HEADER
   563             stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h
   564             strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
   565       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
   566       string(REPLACE "." "_" _HAVE_H ${_UPPER})
   567       check_include_file("${_HEADER}" ${_HAVE_H})
   568     endforeach()
   569 
   570     check_include_files("dlfcn.h;stdint.h;stddef.h;inttypes.h;stdlib.h;strings.h;string.h;float.h" STDC_HEADERS)
   571     check_type_size("size_t" SIZEOF_SIZE_T)
   572     check_symbol_exists(M_PI math.h HAVE_M_PI)
   573     # TODO: refine the mprotect check
   574     check_c_source_compiles("#include <sys/types.h>
   575                              #include <sys/mman.h>
   576                              int main() { }" HAVE_MPROTECT)
   577     foreach(_FN
   578             strtod malloc calloc realloc free getenv setenv putenv unsetenv
   579             qsort abs bcopy memset memcpy memmove memcmp strlen strlcpy strlcat
   580             strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa
   581             _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull
   582             atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp
   583             vsscanf vsnprintf fseeko fseeko64 sigaction setjmp
   584             nanosleep sysconf sysctlbyname
   585             )
   586       string(TOUPPER ${_FN} _UPPER)
   587       set(_HAVEVAR "HAVE_${_UPPER}")
   588       check_function_exists("${_FN}" ${_HAVEVAR})
   589     endforeach()
   590 
   591     check_library_exists(m pow "" HAVE_LIBM)
   592     if(HAVE_LIBM)
   593       set(CMAKE_REQUIRED_LIBRARIES m)
   594       foreach(_FN
   595               atan atan2 ceil copysign cos cosf fabs floor log pow scalbn sin
   596               sinf sqrt sqrtf tan tanf acos asin)
   597         string(TOUPPER ${_FN} _UPPER)
   598         set(_HAVEVAR "HAVE_${_UPPER}")
   599         check_function_exists("${_FN}" ${_HAVEVAR})
   600       endforeach()
   601       set(CMAKE_REQUIRED_LIBRARIES)
   602       list(APPEND EXTRA_LIBS m)
   603     endif()
   604 
   605     check_library_exists(iconv iconv_open "" HAVE_LIBICONV)
   606     if(HAVE_LIBICONV)
   607       list(APPEND EXTRA_LIBS iconv)
   608       set(HAVE_ICONV 1)
   609     endif()
   610 
   611     if(NOT APPLE)
   612       check_include_file(alloca.h HAVE_ALLOCA_H)
   613       check_function_exists(alloca HAVE_ALLOCA)
   614     else()
   615       set(HAVE_ALLOCA_H 1)
   616       set(HAVE_ALLOCA 1)
   617     endif()
   618 
   619     check_struct_has_member("struct sigaction" "sa_sigaction" "signal.h" HAVE_SA_SIGACTION)
   620   endif()
   621 else()
   622   if(WINDOWS)
   623     set(HAVE_STDARG_H 1)
   624     set(HAVE_STDDEF_H 1)
   625   endif()
   626 endif()
   627 
   628 
   629 # Enable/disable various subsystems of the SDL library
   630 foreach(_SUB ${SDL_SUBSYSTEMS})
   631   string(TOUPPER ${_SUB} _OPT)
   632   if(NOT SDL_${_OPT})
   633     set(SDL_${_OPT}_DISABLED 1)
   634   endif()
   635 endforeach()
   636 if(SDL_JOYSTICK)
   637   file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/*.c)
   638   set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
   639 endif()
   640 if(SDL_HAPTIC)
   641   if(NOT SDL_JOYSTICK)
   642     # Haptic requires some private functions from the joystick subsystem.
   643     message_error("SDL_HAPTIC requires SDL_JOYSTICK, which is not enabled")
   644   endif()
   645   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/*.c)
   646   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
   647 endif()
   648 if(SDL_POWER)
   649   file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/*.c)
   650   set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
   651 endif()
   652 # TODO: in configure.in, the test for LOADSO and SDL_DLOPEN is a bit weird:
   653 # if LOADSO is not wanted, SDL_LOADSO_DISABLED is set
   654 # If however on Unix or APPLE dlopen() is detected via CheckDLOPEN(),
   655 # SDL_LOADSO_DISABLED will not be set, regardless of the LOADSO settings
   656 
   657 # General SDL subsystem options, valid for all platforms
   658 if(SDL_AUDIO)
   659   # CheckDummyAudio/CheckDiskAudio - valid for all platforms
   660   if(DUMMYAUDIO)
   661     set(SDL_AUDIO_DRIVER_DUMMY 1)
   662     file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)
   663     set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})
   664     set(HAVE_DUMMYAUDIO TRUE)
   665   endif()
   666   if(DISKAUDIO)
   667     set(SDL_AUDIO_DRIVER_DISK 1)
   668     file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)
   669     set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})
   670     set(HAVE_DISKAUDIO TRUE)
   671   endif()
   672 endif()
   673 
   674 if(SDL_DLOPEN)
   675   # Relevant for Unix/Darwin only
   676   if(UNIX OR APPLE)
   677     CheckDLOPEN()
   678   endif()
   679 endif()
   680 
   681 if(SDL_VIDEO)
   682   if(VIDEO_DUMMY)
   683     set(SDL_VIDEO_DRIVER_DUMMY 1)
   684     file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)
   685     set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})
   686     set(HAVE_VIDEO_DUMMY TRUE)
   687     set(HAVE_SDL_VIDEO TRUE)
   688   endif()
   689 endif()
   690 
   691 # Platform-specific options and settings
   692 if(EMSCRIPTEN)
   693   # Hide noisy warnings that intend to aid mostly during initial stages of porting a new
   694   # project. Uncomment at will for verbose cross-compiling -I/../ path info.
   695   add_definitions(-Wno-warn-absolute-paths)
   696   if(SDL_AUDIO)
   697     set(SDL_AUDIO_DRIVER_EMSCRIPTEN 1)
   698     file(GLOB EM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/emscripten/*.c)
   699     set(SOURCE_FILES ${SOURCE_FILES} ${EM_AUDIO_SOURCES})
   700     set(HAVE_SDL_AUDIO TRUE)
   701   endif()
   702   if(SDL_FILESYSTEM)
   703     set(SDL_FILESYSTEM_EMSCRIPTEN 1)
   704     file(GLOB EM_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/emscripten/*.c)
   705     set(SOURCE_FILES ${SOURCE_FILES} ${EM_FILESYSTEM_SOURCES})
   706     set(HAVE_SDL_FILESYSTEM TRUE)
   707   endif()
   708   if(SDL_JOYSTICK)
   709     set(SDL_JOYSTICK_EMSCRIPTEN 1)
   710     file(GLOB EM_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/emscripten/*.c)
   711     set(SOURCE_FILES ${SOURCE_FILES} ${EM_JOYSTICK_SOURCES})
   712     set(HAVE_SDL_JOYSTICK TRUE)
   713   endif()
   714   if(SDL_POWER)
   715     set(SDL_POWER_EMSCRIPTEN 1)
   716     file(GLOB EM_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/emscripten/*.c)
   717     set(SOURCE_FILES ${SOURCE_FILES} ${EM_POWER_SOURCES})
   718     set(HAVE_SDL_POWER TRUE)
   719   endif()
   720   if(SDL_VIDEO)
   721     set(SDL_VIDEO_DRIVER_EMSCRIPTEN 1)
   722     file(GLOB EM_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/emscripten/*.c)
   723     set(SOURCE_FILES ${SOURCE_FILES} ${EM_VIDEO_SOURCES})
   724     set(HAVE_SDL_VIDEO TRUE)
   725 
   726     #enable gles
   727     if(VIDEO_OPENGLES)
   728       set(SDL_VIDEO_OPENGL_EGL 1)
   729       set(HAVE_VIDEO_OPENGLES TRUE)
   730       set(SDL_VIDEO_OPENGL_ES2 1)
   731       set(SDL_VIDEO_RENDER_OGL_ES2 1)
   732     endif()
   733   endif()
   734 elseif(UNIX AND NOT APPLE)
   735   if(SDL_AUDIO)
   736     if(SYSV5 OR SOLARIS OR HPUX)
   737         set(SDL_AUDIO_DRIVER_SUNAUDIO 1)
   738         file(GLOB SUN_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sun/*.c)
   739         set(SOURCE_FILES ${SOURCE_FILES} ${SUN_AUDIO_SOURCES})
   740         set(HAVE_SDL_AUDIO TRUE)
   741     elseif(NETBSD OR OPENBSD)
   742         set(SDL_AUDIO_DRIVER_BSD 1)
   743         file(GLOB BSD_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/bsd/*.c)
   744         set(SOURCE_FILES ${SOURCE_FILES} ${BSD_AUDIO_SOURCES})
   745         set(HAVE_SDL_AUDIO TRUE)
   746     elseif(AIX)
   747         set(SDL_AUDIO_DRIVER_PAUDIO 1)
   748         file(GLOB AIX_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/paudio/*.c)
   749         set(SOURCE_FILES ${SOURCE_FILES} ${AIX_AUDIO_SOURCES})
   750         set(HAVE_SDL_AUDIO TRUE)
   751     endif()
   752     CheckOSS()
   753     CheckALSA()
   754     CheckPulseAudio()
   755     CheckESD()
   756     CheckARTS()
   757     CheckNAS()
   758     CheckSNDIO()
   759     CheckFusionSound()
   760   endif()
   761 
   762   if(SDL_VIDEO)
   763     # Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
   764     CheckRPI()
   765     CheckX11()
   766     CheckMir()
   767     CheckDirectFB()
   768     CheckOpenGLX11()
   769     CheckOpenGLESX11()
   770     CheckWayland()
   771     CheckVivante()
   772   endif()
   773 
   774   if(LINUX)
   775     check_c_source_compiles("
   776         #include <linux/input.h>
   777         #ifndef EVIOCGNAME
   778         #error EVIOCGNAME() ioctl not available
   779         #endif
   780         int main(int argc, char** argv) {}" HAVE_INPUT_EVENTS)
   781 
   782     check_c_source_compiles("
   783         #include <linux/kd.h>
   784         #include <linux/keyboard.h>
   785 
   786         int main(int argc, char **argv) 
   787         {
   788             struct kbentry kbe;
   789             kbe.kb_table = KG_CTRL;
   790             ioctl(0, KDGKBENT, &kbe);
   791         }" HAVE_INPUT_KD)
   792 
   793     file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/linux/*.c)
   794     set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
   795 
   796     if(HAVE_INPUT_EVENTS)
   797       set(SDL_INPUT_LINUXEV 1)
   798     endif()
   799 
   800     if(SDL_HAPTIC AND HAVE_INPUT_EVENTS)
   801       set(SDL_HAPTIC_LINUX 1)
   802       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/linux/*.c)
   803       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
   804       set(HAVE_SDL_HAPTIC TRUE)
   805     endif()
   806 
   807     if(HAVE_INPUT_KD)
   808       set(SDL_INPUT_LINUXKD 1)
   809     endif()
   810 
   811     check_include_file("libudev.h" HAVE_LIBUDEV_H)
   812 
   813     # !!! FIXME: this needs pkg-config to find the include path, I think.
   814     check_include_file("dbus/dbus.h" HAVE_DBUS_DBUS_H)
   815   endif()
   816 
   817   if(INPUT_TSLIB)
   818     check_c_source_compiles("
   819         #include \"tslib.h\"
   820         int main(int argc, char** argv) { }" HAVE_INPUT_TSLIB)
   821     if(HAVE_INPUT_TSLIB)
   822       set(SDL_INPUT_TSLIB 1)
   823       list(APPEND EXTRA_LIBS ts)
   824     endif()
   825   endif()
   826 
   827   if(SDL_JOYSTICK)
   828     CheckUSBHID()   # seems to be BSD specific - limit the test to BSD only?
   829     if(LINUX)
   830       set(SDL_JOYSTICK_LINUX 1)
   831       file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c)
   832       set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
   833       set(HAVE_SDL_JOYSTICK TRUE)
   834     endif()
   835   endif()
   836 
   837   CheckPTHREAD()
   838 
   839   if(CLOCK_GETTIME)
   840     check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
   841     if(FOUND_CLOCK_GETTIME)
   842       list(APPEND EXTRA_LIBS rt)
   843       set(HAVE_CLOCK_GETTIME 1)
   844     else()
   845       check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
   846       if(FOUND_CLOCK_GETTIME)
   847         set(HAVE_CLOCK_GETTIME 1)
   848       endif()
   849     endif()
   850   endif()
   851 
   852   check_include_file(linux/version.h HAVE_LINUX_VERSION_H)
   853   if(HAVE_LINUX_VERSION_H)
   854     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_LINUX_VERSION_H")
   855   endif()
   856 
   857   if(SDL_POWER)
   858     if(LINUX)
   859       set(SDL_POWER_LINUX 1)
   860       file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/linux/*.c)
   861       set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
   862       set(HAVE_SDL_POWER TRUE)
   863     endif()
   864   endif()
   865 
   866   if(SDL_FILESYSTEM)
   867     set(SDL_FILESYSTEM_UNIX 1)
   868     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/unix/*.c)
   869     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
   870     set(HAVE_SDL_FILESYSTEM TRUE)
   871   endif()
   872 
   873   if(SDL_TIMERS)
   874     set(SDL_TIMER_UNIX 1)
   875     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
   876     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   877     set(HAVE_SDL_TIMERS TRUE)
   878   endif()
   879 
   880   if(RPATH)
   881     set(SDL_RLD_FLAGS "")
   882     if(BSDI OR FREEBSD OR LINUX OR NETBSD)
   883       set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir}")
   884     elseif(SOLARIS)
   885       set(SDL_RLD_FLAGS "-R\${libdir}")
   886     endif()
   887     set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
   888     set(HAVE_RPATH TRUE)
   889   endif()
   890 
   891 elseif(WINDOWS)
   892   find_program(WINDRES windres)
   893 
   894   check_c_source_compiles("
   895     #include <windows.h>
   896     int main(int argc, char **argv) { }" HAVE_WIN32_CC)
   897 
   898   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
   899   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
   900 
   901   # Check for DirectX
   902   if(DIRECTX)
   903     if("$ENV{DXSDK_DIR}" STREQUAL "")
   904       message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")
   905     endif()
   906     set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")
   907     check_include_file(d3d9.h HAVE_D3D_H)
   908     check_include_file(d3d11_1.h HAVE_D3D11_H)
   909     check_include_file(ddraw.h HAVE_DDRAW_H)
   910     check_include_file(dsound.h HAVE_DSOUND_H)
   911     check_include_file(dinput.h HAVE_DINPUT_H)
   912     check_include_file(xaudio2.h HAVE_XAUDIO2_H)
   913     check_include_file(xinput.h HAVE_XINPUT_H)
   914     check_include_file(dxgi.h HAVE_DXGI_H)
   915     if(HAVE_D3D_H OR HAVE_D3D11_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H OR HAVE_XAUDIO2_H)
   916       set(HAVE_DIRECTX TRUE)
   917       # TODO: change $ENV{DXSDL_DIR} to get the path from the include checks
   918       link_directories($ENV{DXSDK_DIR}\\lib\\${PROCESSOR_ARCH})
   919       include_directories($ENV{DXSDK_DIR}\\Include)
   920     endif()
   921     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   922   endif()
   923 
   924   if(SDL_AUDIO)
   925     set(SDL_AUDIO_DRIVER_WINMM 1)
   926     file(GLOB WINMM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/winmm/*.c)
   927     set(SOURCE_FILES ${SOURCE_FILES} ${WINMM_AUDIO_SOURCES})
   928     set(HAVE_SDL_AUDIO TRUE)
   929 
   930     if(HAVE_DSOUND_H)
   931       set(SDL_AUDIO_DRIVER_DSOUND 1)
   932       file(GLOB DSOUND_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/directsound/*.c)
   933       set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})
   934     endif()
   935 
   936     if(HAVE_XAUDIO2_H)
   937       set(SDL_AUDIO_DRIVER_XAUDIO2 1)
   938       file(GLOB XAUDIO2_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/xaudio2/*.c)
   939       set(SOURCE_FILES ${SOURCE_FILES} ${XAUDIO2_AUDIO_SOURCES})
   940     endif()
   941   endif()
   942 
   943   if(SDL_VIDEO)
   944     # requires SDL_LOADSO on Windows (IME, DX, etc.)
   945     if(NOT SDL_LOADSO)
   946       message_error("SDL_VIDEO requires SDL_LOADSO, which is not enabled")
   947     endif()
   948     set(SDL_VIDEO_DRIVER_WINDOWS 1)
   949     file(GLOB WIN_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/windows/*.c)
   950     set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})
   951 
   952     if(RENDER_D3D AND HAVE_D3D_H)
   953       set(SDL_VIDEO_RENDER_D3D 1)
   954       set(HAVE_RENDER_D3D TRUE)
   955     endif()
   956     if(RENDER_D3D AND HAVE_D3D11_H)
   957       set(SDL_VIDEO_RENDER_D3D11 1)
   958       set(HAVE_RENDER_D3D TRUE)
   959     endif()
   960     set(HAVE_SDL_VIDEO TRUE)
   961   endif()
   962 
   963   if(SDL_THREADS)
   964     set(SDL_THREAD_WINDOWS 1)
   965     set(SOURCE_FILES ${SOURCE_FILES}
   966       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_sysmutex.c
   967       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syssem.c
   968       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systhread.c
   969       ${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systls.c
   970       ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syscond.c)
   971     set(HAVE_SDL_THREADS TRUE)
   972   endif()
   973 
   974   if(SDL_POWER)
   975     set(SDL_POWER_WINDOWS 1)
   976     set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/windows/SDL_syspower.c)
   977     set(HAVE_SDL_POWER TRUE)
   978   endif()
   979 
   980   if(SDL_FILESYSTEM)
   981     set(SDL_FILESYSTEM_WINDOWS 1)
   982     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/windows/*.c)
   983     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
   984     set(HAVE_SDL_FILESYSTEM TRUE)
   985   endif()
   986 
   987   # Libraries for Win32 native and MinGW
   988   list(APPEND EXTRA_LIBS user32 gdi32 winmm imm32 ole32 oleaut32 version uuid)
   989 
   990   # TODO: in configure.in the check for timers is set on
   991   # cygwin | mingw32* - does this include mingw32CE?
   992   if(SDL_TIMERS)
   993     set(SDL_TIMER_WINDOWS 1)
   994     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/windows/*.c)
   995     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
   996     set(HAVE_SDL_TIMERS TRUE)
   997   endif()
   998 
   999   if(SDL_LOADSO)
  1000     set(SDL_LOADSO_WINDOWS 1)
  1001     file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/windows/*.c)
  1002     set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1003     set(HAVE_SDL_LOADSO TRUE)
  1004   endif()
  1005 
  1006   file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/windows/*.c)
  1007   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
  1008 
  1009   if(SDL_VIDEO)
  1010     if(VIDEO_OPENGL)
  1011       set(SDL_VIDEO_OPENGL 1)
  1012       set(SDL_VIDEO_OPENGL_WGL 1)
  1013       set(SDL_VIDEO_RENDER_OGL 1)
  1014       set(HAVE_VIDEO_OPENGL TRUE)
  1015     endif()
  1016   endif()
  1017 
  1018   if(SDL_JOYSTICK)
  1019     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/windows/*.c)
  1020     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1021     if(HAVE_DINPUT_H)
  1022       set(SDL_JOYSTICK_DINPUT 1)
  1023       list(APPEND EXTRA_LIBS dinput8 dxguid dxerr)
  1024     endif()
  1025     if(HAVE_XINPUT_H)
  1026       set(SDL_JOYSTICK_XINPUT 1)
  1027     endif()
  1028     if(NOT HAVE_DINPUT_H AND NOT HAVE_XINPUT_H)
  1029       set(SDL_JOYSTICK_WINMM 1)
  1030     endif()
  1031     set(HAVE_SDL_JOYSTICK TRUE)
  1032 
  1033     if(SDL_HAPTIC)
  1034       file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/windows/*.c)
  1035       set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1036       if(HAVE_DINPUT_H)
  1037         set(SDL_HAPTIC_DINPUT 1)
  1038       endif()
  1039       if(HAVE_XINPUT_H)
  1040         set(SDL_HAPTIC_XINPUT 1)
  1041       endif()
  1042       set(HAVE_SDL_HAPTIC TRUE)
  1043     endif()
  1044   endif()
  1045 
  1046   file(GLOB VERSION_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.rc)
  1047   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.c)
  1048   if(MINGW OR CYGWIN)
  1049     list(APPEND EXTRA_LIBS mingw32)
  1050     list(APPEND EXTRA_LDFLAGS "-mwindows")
  1051     set(SDL_CFLAGS "${SDL_CFLAGS} -Dmain=SDL_main")
  1052     list(APPEND SDL_LIBS "-lmingw32" "-lSDL2main" "-mwindows")
  1053   endif()
  1054 elseif(APPLE)
  1055   # TODO: rework this for proper MacOS X, iOS and Darwin support
  1056 
  1057   # Requires the darwin file implementation
  1058   if(SDL_FILE)
  1059     file(GLOB EXTRA_SOURCES ${PROJECT_SOURCE_DIR}/src/file/cocoa/*.m)
  1060     set(SOURCE_FILES ${EXTRA_SOURCES} ${SOURCE_FILES})
  1061     set_source_files_properties(${EXTRA_SOURCES} PROPERTIES LANGUAGE C)
  1062     set(HAVE_SDL_FILE TRUE)
  1063     set(SDL_FRAMEWORK_COCOA 1)
  1064     set(SDL_FRAMEWORK_COREVIDEO 1)
  1065   else()
  1066     message_error("SDL_FILE must be enabled to build on MacOS X")
  1067   endif()
  1068 
  1069   if(SDL_AUDIO)
  1070     set(SDL_AUDIO_DRIVER_COREAUDIO 1)
  1071     file(GLOB AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/coreaudio/*.c)
  1072     set(SOURCE_FILES ${SOURCE_FILES} ${AUDIO_SOURCES})
  1073     set(HAVE_SDL_AUDIO TRUE)
  1074     set(SDL_FRAMEWORK_COREAUDIO 1)
  1075     set(SDL_FRAMEWORK_AUDIOUNIT 1)
  1076   endif()
  1077 
  1078   if(SDL_JOYSTICK)
  1079     set(SDL_JOYSTICK_IOKIT 1)
  1080     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)
  1081     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1082     set(HAVE_SDL_JOYSTICK TRUE)
  1083     set(SDL_FRAMEWORK_IOKIT 1)
  1084     set(SDL_FRAMEWORK_FF 1)
  1085   endif()
  1086 
  1087   if(SDL_HAPTIC)
  1088     set(SDL_HAPTIC_IOKIT 1)
  1089     file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/darwin/*.c)
  1090     set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1091     set(HAVE_SDL_HAPTIC TRUE)
  1092     set(SDL_FRAMEWORK_IOKIT 1)
  1093     set(SDL_FRAMEWORK_FF 1)
  1094     if(NOT SDL_JOYSTICK)
  1095       message(FATAL_ERROR "SDL_HAPTIC requires SDL_JOYSTICK to be enabled")
  1096     endif()
  1097   endif()
  1098 
  1099   if(SDL_POWER)
  1100     set(SDL_POWER_MACOSX 1)
  1101     file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/macosx/*.c)
  1102     set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})
  1103     set(HAVE_SDL_POWER TRUE)
  1104     set(SDL_FRAMEWORK_CARBON 1)
  1105     set(SDL_FRAMEWORK_IOKIT 1)
  1106   endif()
  1107 
  1108   if(SDL_TIMERS)
  1109     set(SDL_TIMER_UNIX 1)
  1110     file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)
  1111     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1112     set(HAVE_SDL_TIMERS TRUE)
  1113   endif(SDL_TIMERS)
  1114 
  1115   if(SDL_FILESYSTEM)
  1116     set(SDL_FILESYSTEM_COCOA 1)
  1117     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/cocoa/*.m)
  1118     set_source_files_properties(${FILESYSTEM_SOURCES} PROPERTIES LANGUAGE C)
  1119     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1120     set(HAVE_SDL_FILESYSTEM TRUE)
  1121   endif()
  1122 
  1123   # Actually load the frameworks at the end so we don't duplicate include.
  1124   if(SDL_FRAMEWORK_COREVIDEO)
  1125     find_library(COREVIDEO CoreVideo)
  1126     list(APPEND EXTRA_LIBS ${COREVIDEO})
  1127   endif()
  1128   if(SDL_FRAMEWORK_COCOA)
  1129     find_library(COCOA_LIBRARY Cocoa)
  1130     list(APPEND EXTRA_LIBS ${COCOA_LIBRARY})
  1131   endif()
  1132   if(SDL_FRAMEWORK_IOKIT)
  1133     find_library(IOKIT IOKit)
  1134     list(APPEND EXTRA_LIBS ${IOKIT})
  1135   endif()
  1136   if(SDL_FRAMEWORK_FF)
  1137     find_library(FORCEFEEDBACK ForceFeedback)
  1138     list(APPEND EXTRA_LIBS ${FORCEFEEDBACK})
  1139   endif()
  1140   if(SDL_FRAMEWORK_CARBON)
  1141     find_library(CARBON_LIBRARY Carbon)
  1142     list(APPEND EXTRA_LIBS ${CARBON_LIBRARY})
  1143   endif()
  1144   if(SDL_FRAMEWORK_COREAUDIO)
  1145     find_library(COREAUDIO CoreAudio)
  1146     list(APPEND EXTRA_LIBS ${COREAUDIO})
  1147   endif()
  1148   if(SDL_FRAMEWORK_AUDIOUNIT)
  1149     find_library(AUDIOUNIT AudioUnit)
  1150     list(APPEND EXTRA_LIBS ${AUDIOUNIT})
  1151   endif()
  1152 
  1153   # iOS hack needed - http://code.google.com/p/ios-cmake/ ?
  1154   if(SDL_VIDEO)
  1155     CheckCOCOA()
  1156     if(VIDEO_OPENGL)
  1157       set(SDL_VIDEO_OPENGL 1)
  1158       set(SDL_VIDEO_OPENGL_CGL 1)
  1159       set(SDL_VIDEO_RENDER_OGL 1)
  1160       set(HAVE_VIDEO_OPENGL TRUE)
  1161     endif()
  1162   endif()
  1163 
  1164   CheckPTHREAD()
  1165 elseif(HAIKU)
  1166   if(SDL_VIDEO)
  1167     set(SDL_VIDEO_DRIVER_HAIKU 1)
  1168     file(GLOB HAIKUVIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/haiku/*.c)
  1169     set(SOURCE_FILES ${SOURCE_FILES} ${HAIKUVIDEO_SOURCES})
  1170     set(HAVE_SDL_VIDEO TRUE)
  1171 
  1172     set(SDL_FILESYSTEM_HAIKU 1)
  1173     file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/haiku/*.cc)
  1174     set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1175     set(HAVE_SDL_FILESYSTEM TRUE)
  1176 
  1177     if(SDL_TIMERS)
  1178       set(SDL_TIMER_HAIKU 1)
  1179       file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/haiku/*.c)
  1180       set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1181       set(HAVE_SDL_TIMERS TRUE)
  1182     endif(SDL_TIMERS)
  1183 
  1184     if(VIDEO_OPENGL)
  1185       # TODO: Use FIND_PACKAGE(OpenGL) instead
  1186       set(SDL_VIDEO_OPENGL 1)
  1187       set(SDL_VIDEO_OPENGL_BGL 1)
  1188       set(SDL_VIDEO_RENDER_OGL 1)
  1189       list(APPEND EXTRA_LIBS GL)
  1190       set(HAVE_VIDEO_OPENGL TRUE)
  1191     endif()
  1192   endif()
  1193 
  1194   CheckPTHREAD()
  1195 endif()
  1196 
  1197 # Dummies
  1198 # configure.in does it differently:
  1199 # if not have X
  1200 #   if enable_X {  SDL_X_DISABLED = 1 }
  1201 #   [add dummy sources]
  1202 # so it always adds a dummy, without checking, if it was actually requested.
  1203 # This leads to missing internal references on building, since the
  1204 # src/X/*.c does not get included.
  1205 if(NOT HAVE_SDL_JOYSTICK)
  1206   set(SDL_JOYSTICK_DISABLED 1)
  1207   if(SDL_JOYSTICK AND NOT APPLE) # results in unresolved symbols on OSX
  1208 
  1209     file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/dummy/*.c)
  1210     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
  1211   endif()
  1212 endif()
  1213 if(NOT HAVE_SDL_HAPTIC)
  1214   set(SDL_HAPTIC_DISABLED 1)
  1215   file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/dummy/*.c)
  1216   set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})
  1217 endif()
  1218 if(NOT HAVE_SDL_LOADSO)
  1219   set(SDL_LOADSO_DISABLED 1)
  1220   file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/dummy/*.c)
  1221   set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})
  1222 endif()
  1223 if(NOT HAVE_SDL_FILESYSTEM)
  1224   set(SDL_FILESYSTEM_DISABLED 1)
  1225   file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/dummy/*.c)
  1226   set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})
  1227 endif()
  1228 
  1229 # We always need to have threads and timers around
  1230 if(NOT HAVE_SDL_THREADS)
  1231   set(SDL_THREADS_DISABLED 1)
  1232   file(GLOB THREADS_SOURCES ${SDL2_SOURCE_DIR}/src/thread/generic/*.c)
  1233   set(SOURCE_FILES ${SOURCE_FILES} ${THREADS_SOURCES})
  1234 endif()
  1235 if(NOT HAVE_SDL_TIMERS)
  1236   set(SDL_TIMERS_DISABLED 1)
  1237   file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/dummy/*.c)
  1238   set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
  1239 endif()
  1240 
  1241 if(NOT SDLMAIN_SOURCES)
  1242   file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/dummy/*.c)
  1243 endif()
  1244 
  1245 # Append the -MMD -MT flags
  1246 # if(DEPENDENCY_TRACKING)
  1247 #   if(COMPILER_IS_GNUCC)
  1248 #     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MMD -MT \$@")
  1249 #   endif()
  1250 # endif()
  1251 
  1252 configure_file("${SDL2_SOURCE_DIR}/include/SDL_config.h.cmake"
  1253   "${SDL2_BINARY_DIR}/include/SDL_config.h")
  1254 
  1255 # Prepare the flags and remove duplicates
  1256 if(EXTRA_LDFLAGS)
  1257   list(REMOVE_DUPLICATES EXTRA_LDFLAGS)
  1258 endif()
  1259 if(EXTRA_LIBS)
  1260   list(REMOVE_DUPLICATES EXTRA_LIBS)
  1261 endif()
  1262 if(EXTRA_CFLAGS)
  1263   list(REMOVE_DUPLICATES EXTRA_CFLAGS)
  1264 endif()
  1265 listtostr(EXTRA_CFLAGS _EXTRA_CFLAGS)
  1266 set(EXTRA_CFLAGS ${_EXTRA_CFLAGS})
  1267 
  1268 # Compat helpers for the configuration files
  1269 if(NOT WINDOWS OR CYGWIN)
  1270   # TODO: we need a Windows script, too
  1271   execute_process(COMMAND sh ${SDL2_SOURCE_DIR}/build-scripts/updaterev.sh)
  1272 
  1273   set(prefix ${CMAKE_INSTALL_PREFIX})
  1274   set(exec_prefix "\${prefix}")
  1275   set(libdir "\${exec_prefix}/lib${LIB_SUFFIX}")
  1276   set(bindir "\${exec_prefix}/bin")
  1277   set(includedir "\${prefix}/include")
  1278   if(SDL_STATIC)
  1279     set(ENABLE_STATIC_TRUE "")
  1280     set(ENABLE_STATIC_FALSE "#")
  1281   else()
  1282     set(ENABLE_STATIC_TRUE "#")
  1283     set(ENABLE_STATIC_FALSE "")
  1284   endif()
  1285   if(SDL_SHARED)
  1286     set(ENABLE_SHARED_TRUE "")
  1287     set(ENABLE_SHARED_FALSE "#")
  1288   else()
  1289     set(ENABLE_SHARED_TRUE "#")
  1290     set(ENABLE_SHARED_FALSE "")
  1291   endif()
  1292 
  1293   # Clean up the different lists
  1294   listtostr(EXTRA_LIBS _EXTRA_LIBS "-l")
  1295   set(SDL_STATIC_LIBS ${SDL_LIBS} ${EXTRA_LDFLAGS} ${_EXTRA_LIBS})
  1296   list(REMOVE_DUPLICATES SDL_STATIC_LIBS)
  1297   listtostr(SDL_STATIC_LIBS _SDL_STATIC_LIBS)
  1298   set(SDL_STATIC_LIBS ${_SDL_STATIC_LIBS})
  1299   listtostr(SDL_LIBS _SDL_LIBS)
  1300   set(SDL_LIBS ${_SDL_LIBS})
  1301 
  1302   # MESSAGE(STATUS "SDL_LIBS: ${SDL_LIBS}")
  1303   # MESSAGE(STATUS "SDL_STATIC_LIBS: ${SDL_STATIC_LIBS}")
  1304 
  1305   configure_file("${SDL2_SOURCE_DIR}/sdl2.pc.in"
  1306     "${SDL2_BINARY_DIR}/sdl2.pc" @ONLY)
  1307   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1308     "${SDL2_BINARY_DIR}/sdl2-config")
  1309   configure_file("${SDL2_SOURCE_DIR}/sdl2-config.in"
  1310     "${SDL2_BINARY_DIR}/sdl2-config" @ONLY)
  1311   configure_file("${SDL2_SOURCE_DIR}/SDL2.spec.in"
  1312     "${SDL2_BINARY_DIR}/SDL2.spec" @ONLY)
  1313 endif()
  1314 
  1315 ##### Info output #####
  1316 message(STATUS "")
  1317 message(STATUS "SDL2 was configured with the following options:")
  1318 message(STATUS "")
  1319 message(STATUS "Platform: ${CMAKE_SYSTEM}")
  1320 message(STATUS "64-bit:   ${ARCH_64}")
  1321 message(STATUS "Compiler: ${CMAKE_C_COMPILER}")
  1322 message(STATUS "")
  1323 message(STATUS "Subsystems:")
  1324 foreach(_SUB ${SDL_SUBSYSTEMS})
  1325   string(TOUPPER ${_SUB} _OPT)
  1326   message_bool_option(${_SUB} SDL_${_OPT})
  1327 endforeach()
  1328 message(STATUS "")
  1329 message(STATUS "Options:")
  1330 list(SORT ALLOPTIONS)
  1331 foreach(_OPT ${ALLOPTIONS})
  1332   # Longest option is VIDEO_X11_XSCREENSAVER = 22 characters
  1333   # Get the padding
  1334   string(LENGTH ${_OPT} _OPTLEN)
  1335   math(EXPR _PADLEN "23 - ${_OPTLEN}")
  1336   string(RANDOM LENGTH ${_PADLEN} ALPHABET " " _PADDING)
  1337   message_tested_option(${_OPT} ${_PADDING})
  1338 endforeach()
  1339 message(STATUS "")
  1340 message(STATUS " CFLAGS:        ${CMAKE_C_FLAGS}")
  1341 message(STATUS " EXTRA_CFLAGS:  ${EXTRA_CFLAGS}")
  1342 message(STATUS " EXTRA_LDFLAGS: ${EXTRA_LDFLAGS}")
  1343 message(STATUS " EXTRA_LIBS:    ${EXTRA_LIBS}")
  1344 message(STATUS "")
  1345 message(STATUS " Build Shared Library: ${SDL_SHARED}")
  1346 message(STATUS " Build Static Library: ${SDL_STATIC}")
  1347 message(STATUS "")
  1348 if(UNIX)
  1349   message(STATUS "If something was not detected, although the libraries")
  1350   message(STATUS "were installed, then make sure you have set the")
  1351   message(STATUS "CFLAGS and LDFLAGS environment variables correctly.")
  1352   message(STATUS "")
  1353 endif()
  1354 
  1355 # Ensure that the extra cflags are used at compile time
  1356 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_CFLAGS}")
  1357 
  1358 # Always build SDLmain
  1359 add_library(SDL2main STATIC ${SDLMAIN_SOURCES})
  1360 set(_INSTALL_LIBS "SDL2main")
  1361 
  1362 if(SDL_SHARED)
  1363   add_library(SDL2 SHARED ${SOURCE_FILES})
  1364   if(UNIX)
  1365     set_target_properties(SDL2 PROPERTIES
  1366       VERSION ${LT_VERSION}
  1367       SOVERSION ${LT_REVISION}
  1368       OUTPUT_NAME "SDL2-${LT_RELEASE}")
  1369   else()
  1370     set_target_properties(SDL2 PROPERTIES
  1371       VERSION ${SDL_VERSION}
  1372       SOVERSION ${LT_REVISION}
  1373       OUTPUT_NAME "SDL2")
  1374   endif()
  1375  set(_INSTALL_LIBS "SDL2" ${_INSTALL_LIBS})
  1376  target_link_libraries(SDL2 ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1377 endif()
  1378 
  1379 if(SDL_STATIC)
  1380   set (BUILD_SHARED_LIBS FALSE)
  1381   add_library(SDL2-static STATIC ${SOURCE_FILES})
  1382   set_target_properties(SDL2-static PROPERTIES OUTPUT_NAME "SDL2")
  1383   if(MSVC)
  1384     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
  1385     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
  1386     set_target_properties(SDL2-static PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")
  1387   endif()
  1388   # TODO: Win32 platforms keep the same suffix .lib for import and static
  1389   # libraries - do we need to consider this?
  1390   set(_INSTALL_LIBS "SDL2-static" ${_INSTALL_LIBS})
  1391   target_link_libraries(SDL2-static ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
  1392 endif()
  1393 
  1394 ##### Installation targets #####
  1395 install(TARGETS ${_INSTALL_LIBS}
  1396   LIBRARY DESTINATION "lib${LIB_SUFFIX}"
  1397   ARCHIVE DESTINATION "lib${LIB_SUFFIX}"
  1398   RUNTIME DESTINATION bin)
  1399 
  1400 file(GLOB INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/*.h)
  1401 file(GLOB BIN_INCLUDE_FILES ${SDL2_BINARY_DIR}/include/*.h)
  1402 foreach(_FNAME ${BIN_INCLUDE_FILES})
  1403   get_filename_component(_INCNAME ${_FNAME} NAME)
  1404   list(REMOVE_ITEM INCLUDE_FILES ${SDL2_SOURCE_DIR}/include/${_INCNAME})
  1405 endforeach()
  1406 list(APPEND INCLUDE_FILES ${BIN_INCLUDE_FILES})
  1407 install(FILES ${INCLUDE_FILES} DESTINATION include/SDL2)
  1408 
  1409 if(NOT WINDOWS OR CYGWIN)
  1410   if(SDL_SHARED)
  1411     install(CODE "
  1412       execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink
  1413       \"libSDL2-2.0.so\" \"libSDL2.so\")")
  1414     install(FILES ${SDL2_BINARY_DIR}/libSDL2.so DESTINATION "lib${LIB_SUFFIX}")
  1415   endif()
  1416   if(FREEBSD)
  1417     # FreeBSD uses ${PREFIX}/libdata/pkgconfig
  1418     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc DESTINATION "libdata/pkgconfig")
  1419   else()
  1420     install(FILES ${SDL2_BINARY_DIR}/sdl2.pc
  1421       DESTINATION "lib${LIB_SUFFIX}/pkgconfig")
  1422   endif()
  1423   install(PROGRAMS ${SDL2_BINARY_DIR}/sdl2-config DESTINATION bin)
  1424   # TODO: what about the .spec file? Is it only needed for RPM creation?
  1425   install(FILES "${SDL2_SOURCE_DIR}/sdl2.m4" DESTINATION "share/aclocal")
  1426 endif()
  1427 
  1428 ##### Uninstall target #####
  1429 
  1430 configure_file(
  1431     "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
  1432     "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
  1433     IMMEDIATE @ONLY)
  1434 
  1435 add_custom_target(uninstall
  1436     COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)