if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})

message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL source code and call cmake from there")

endif()

cmake_minimum_required(VERSION 2.6)

project(SDL2 C)

include(CheckFunctionExists)

include(CheckLibraryExists)

include(CheckIncludeFiles)

include(CheckIncludeFile)

include(CheckSymbolExists)

include(CheckCSourceRuns)

include(CheckCCompilerFlag)

include(CheckTypeSize)

include(CheckStructHasMember)

include(CMakeDependentOption)

include(FindPkgConfig)

set(CMAKE_MODULE_PATH "${SDL2_SOURCE_DIR}/cmake")

include(${SDL2_SOURCE_DIR}/cmake/macros.cmake)

include(${SDL2_SOURCE_DIR}/cmake/sdlchecks.cmake)

# General settings

# Edit include/SDL_version.h and change the version, then:

# SDL_MICRO_VERSION += 1;

# SDL_INTERFACE_AGE += 1;

# SDL_BINARY_AGE += 1;

# if any functions have been added, set SDL_INTERFACE_AGE to 0.

# if backwards compatibility has been broken,

# set SDL_BINARY_AGE and SDL_INTERFACE_AGE to 0.

set(SDL_MAJOR_VERSION 2)

set(SDL_MINOR_VERSION 0)

set(SDL_MICRO_VERSION 1)

set(SDL_INTERFACE_AGE 1)

set(SDL_BINARY_AGE 1)

set(SDL_VERSION "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}.${SDL_MICRO_VERSION}")

# Calculate a libtool-like version number

math(EXPR LT_CURRENT "${SDL_MICRO_VERSION} - ${SDL_INTERFACE_AGE}")

math(EXPR LT_AGE "${SDL_BINARY_AGE} - ${SDL_INTERFACE_AGE}")

set(LT_REVISION "${SDL_INTERFACE_AGE}")

set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")

set(LT_VERSION "${LT_CURRENT}.${LT_REVISION}.${LT_AGE}")

# General settings & flags

set(LIBRARY_OUTPUT_DIRECTORY "build")

# Check for 64 or 32 bit

set(SIZEOF_VOIDP ${CMAKE_SIZEOF_VOID_P})

if(CMAKE_SIZEOF_VOID_P EQUAL 8)

set(ARCH_64 TRUE)

set(PROCESSOR_ARCH "x64")

else()

set(ARCH_64 FALSE)

set(PROCESSOR_ARCH "x86")

endif()

set(LIBNAME SDL2)

if(NOT LIBTYPE)

set(LIBTYPE SHARED)

endif()

# Get the platform

if(WIN32)

if(NOT WINDOWS)

set(WINDOWS TRUE)

endif()

elseif(UNIX AND NOT APPLE)

if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")

set(LINUX TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD.*")

set(FREEBSD TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")

set(NETBSD TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "kOpenBSD.*|OpenBSD.*")

set(OPENBSD TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES ".*GNU.*")

set(GNU TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES ".*BSDI.*")

set(BSDI TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "DragonFly.*|FreeBSD")

set(FREEBSD TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "SYSV5.*")

set(SYSV5 TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "Solaris.*")

set(SOLARIS TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX.*")

set(HPUX TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "AIX.*")

set(AIX TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES "Minix.*")

set(MINIX TRUE)

endif()

elseif(APPLE)

if(CMAKE_SYSTEM_NAME MATCHES ".*Darwin.*")

set(DARWIN TRUE)

elseif(CMAKE_SYSTEM_NAME MATCHES ".*MacOS.*")

set(MACOSX TRUE)

endif()

# TODO: iOS?

elseif(CMAKE_SYSTEM_NAME MATCHES "BeOS.*")

message_error("BeOS support has been removed as of SDL 2.0.2.")

elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku.*")

set(HAIKU TRUE)

endif()

# Don't mistake osx for unix

if(UNIX AND NOT APPLE)

set(UNIX_SYS ON)

else()

set(UNIX_SYS OFF)

endif()

if(UNIX OR APPLE)

set(UNIX_OR_MAC_SYS ON)

else()

set(UNIX_OR_MAC_SYS OFF)

endif()

# Default option knobs

if(APPLE OR ARCH_64)

set(OPT_DEF_SSEMATH ON)

endif()

if(UNIX OR MINGW OR MSYS)

set(OPT_DEF_LIBC ON)

endif()

# Compiler info

if(CMAKE_COMPILER_IS_GNUCC)

set(USE_GCC TRUE)

set(OPT_DEF_ASM TRUE)

elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")

set(USE_CLANG TRUE)

set(OPT_DEF_ASM TRUE)

elseif(MSVC_VERSION GREATER 1400) # VisualStudio 8.0+

set(OPT_DEF_ASM TRUE)

#set(CMAKE_C_FLAGS "/ZI /WX- /

else()

set(OPT_DEF_ASM FALSE)

endif()

# Default flags, if not set otherwise

if("$ENV{CFLAGS}" STREQUAL "")

if(USE_GCC OR USE_CLANG)

set(CMAKE_C_FLAGS "-g -O3")

endif()

else("$ENV{CFLAGS}" STREQUAL "")

set(CMAKE_C_FLAGS "$ENV{CFLAGS}")

list(APPEND EXTRA_CFLAGS "$ENV{CFLAGS}")

endif()

if(NOT ("$ENV{CFLAGS}" STREQUAL "")) # Hackish, but does the trick on Win32

list(APPEND EXTRA_LDFLAGS "$ENV{LDFLAGS}")

endif()

if(MSVC)

option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)

if(FORCE_STATIC_VCRT)

foreach(flag_var

CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE

CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)

if(${flag_var} MATCHES "/MD")

string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")

endif()

endforeach(flag_var)

endif()

endif()

# Those are used for pkg-config and friends, so that the SDL2.pc, sdl2-config,

# etc. are created correctly.

set(SDL_LIBS "-lSDL2")

set(SDL_CFLAGS "")

if(CYGWIN)

# We build SDL on cygwin without the UNIX emulation layer

include_directories("-I/usr/include/mingw")

set(CMAKE_REQUIRED_FLAGS "-mno-cygwin")

check_c_source_compiles("int main(int argc, char **argv) {}"

HAVE_GCC_NO_CYGWIN)

set(CMAKE_REQUIRED_FLAGS)

if(HAVE_GCC_NO_CYGWIN)

list(APPEND EXTRA_LDFLAGS "-mno-cygwin")

list(APPEND SDL_LIBS "-mno-cygwin")

endif()

set(SDL_CFLAGS "${SDL_CFLAGS} -I/usr/include/mingw")

endif()

add_definitions(-DUSING_GENERATED_CONFIG_H)

# General includes

include_directories(${SDL2_BINARY_DIR}/include ${SDL2_SOURCE_DIR}/include)

set(SDL_SUBSYSTEMS

Atomic Audio Video Render Events Joystick Haptic Power Threads Timers

File Loadso CPUinfo Filesystem)

foreach(_SUB ${SDL_SUBSYSTEMS})

string(TOUPPER ${_SUB} _OPT)

option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ON)

endforeach()

option_string(ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")

#set_option(DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)

set_option(LIBC "Use the system C library" ${OPT_DEF_LIBC})

set_option(GCC_ATOMICS "Use gcc builtin atomics" ${USE_GCC})

set_option(ASSEMBLY "Enable assembly routines" ${OPT_DEF_ASM})

set_option(SSEMATH "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})

set_option(MMX "Use MMX assembly routines" ${OPT_DEF_ASM})

set_option(3DNOW "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})

set_option(SSE "Use SSE assembly routines" ${OPT_DEF_ASM})

set_option(SSE2 "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})

set_option(ALTIVEC "Use Altivec assembly routines" ${OPT_DEF_ASM})

set_option(DISKAUDIO "Support the disk writer audio driver" ON)

set_option(DUMMYAUDIO "Support the dummy audio driver" ON)

set_option(VIDEO_DIRECTFB "Use DirectFB video driver" OFF)

dep_option(DIRECTFB_SHARED "Dynamically load directfb support" ON "VIDEO_DIRECTFB" OFF)

set_option(FUSIONSOUND "Use FusionSound audio driver" OFF)

dep_option(FUSIONSOUND_SHARED "Dynamically load fusionsound audio support" ON "FUSIONSOUND_SHARED" OFF)

set_option(VIDEO_DUMMY "Use dummy video driver" ON)

set_option(VIDEO_OPENGL "Include OpenGL support" ON)

set_option(VIDEO_OPENGLES "Include OpenGL ES support" ON)

set_option(PTHREADS "Use POSIX threads for multi-threading" ${UNIX_OR_MAC_SYS})

dep_option(PTHREADS_SEM "Use pthread semaphores" ON "PTHREADS" OFF)

set_option(SDL_DLOPEN "Use dlopen for shared object loading" ON)

set_option(OSS "Support the OSS audio API" ${UNIX_SYS})

set_option(ALSA "Support the ALSA audio API" ${UNIX_SYS})

dep_option(ALSA_SHARED "Dynamically load ALSA audio support" ON "ALSA" OFF)

set_option(ESD "Support the Enlightened Sound Daemon" ${UNIX_SYS})

dep_option(ESD_SHARED "Dynamically load ESD audio support" ON "ESD" OFF)

set_option(PULSEAUDIO "Use PulseAudio" ${UNIX_SYS})

dep_option(PULSEAUDIO_SHARED "Dynamically load PulseAudio support" ON "PULSEAUDIO" OFF)

set_option(ARTS "Support the Analog Real Time Synthesizer" ${UNIX_SYS})

dep_option(ARTS_SHARED "Dynamically load aRts audio support" ON "ARTS" OFF)

set_option(NAS "Support the NAS audio API" ${UNIX_SYS})

set_option(NAS_SHARED "Dynamically load NAS audio API" ${UNIX_SYS})

set_option(SNDIO "Support the sndio audio API" ${UNIX_SYS})

set_option(RPATH "Use an rpath when linking SDL" ${UNIX_SYS})

set_option(CLOCK_GETTIME "Use clock_gettime() instead of gettimeofday()" OFF)

set_option(INPUT_TSLIB "Use the Touchscreen library for input" ${UNIX_SYS})

set_option(VIDEO_X11 "Use X11 video driver" ${UNIX_SYS})

set_option(VIDEO_WAYLAND "Use Wayland video driver" ${UNIX_SYS})

dep_option(X11_SHARED "Dynamically load X11 support" ON "VIDEO_X11" OFF)

set(SDL_X11_OPTIONS Xcursor Xinerama XInput Xrandr Xscrnsaver XShape Xvm)

foreach(_SUB ${SDL_X11_OPTIONS})

string(TOUPPER "VIDEO_X11_${_SUB}" _OPT)

dep_option(${_OPT} "Enable ${_SUB} support" ON "VIDEO_X11" OFF)

endforeach()

set_option(VIDEO_COCOA "Use Cocoa video driver" ${APPLE})

set_option(DIRECTX "Use DirectX for Windows audio/video" ${WINDOWS})

set_option(RENDER_D3D "Enable the Direct3D render driver" ${WINDOWS})

# TODO: We should (should we?) respect cmake's ${BUILD_SHARED_LIBS} flag here

# The options below are for compatibility to configure's default behaviour.

set(SDL_SHARED ON CACHE BOOL "Build a shared version of the library")

set(SDL_STATIC ON CACHE BOOL "Build a static version of the library")

# General source files

file(GLOB SOURCE_FILES

${SDL2_SOURCE_DIR}/src/*.c

${SDL2_SOURCE_DIR}/src/atomic/*.c

${SDL2_SOURCE_DIR}/src/audio/*.c

${SDL2_SOURCE_DIR}/src/cpuinfo/*.c

${SDL2_SOURCE_DIR}/src/dynapi/*.c

${SDL2_SOURCE_DIR}/src/events/*.c

${SDL2_SOURCE_DIR}/src/file/*.c

${SDL2_SOURCE_DIR}/src/libm/*.c

${SDL2_SOURCE_DIR}/src/render/*.c

${SDL2_SOURCE_DIR}/src/render/*/*.c

${SDL2_SOURCE_DIR}/src/stdlib/*.c

${SDL2_SOURCE_DIR}/src/thread/*.c

${SDL2_SOURCE_DIR}/src/timer/*.c

${SDL2_SOURCE_DIR}/src/video/*.c)

if(ASSERTIONS STREQUAL "auto")

# Do nada - use optimization settings to determine the assertion level

elseif(ASSERTIONS STREQUAL "disabled")

set(SDL_DEFAULT_ASSERT_LEVEL 0)

elseif(ASSERTIONS STREQUAL "release")

set(SDL_DEFAULT_ASSERT_LEVEL 1)

elseif(ASSERTIONS STREQUAL "enabled")

set(SDL_DEFAULT_ASSERT_LEVEL 2)

elseif(ASSERTIONS STREQUAL "paranoid")

set(SDL_DEFAULT_ASSERT_LEVEL 3)

else()

message_error("unknown assertion level")

endif()

set(HAVE_ASSERTIONS ${ASSERTIONS})

# Compiler option evaluation

if(USE_GCC OR USE_CLANG)

if(DEPENDENCY_TRACKING)

check_c_source_compiles("

#if !defined(__GNUC__) || __GNUC__ < 3

#error Dependency tracking requires GCC 3.0 or newer

#endif

int main(int argc, char **argv) { }" HAVE_DEPENDENCY_TRACKING)

endif()

if(GCC_ATOMICS)

check_c_source_compiles("int main(int argc, char **argv) {

int a;

void *x, *y, *z;

__sync_lock_test_and_set(&a, 4);

__sync_lock_test_and_set(&x, y);

__sync_fetch_and_add(&a, 1);

__sync_bool_compare_and_swap(&a, 5, 10);

__sync_bool_compare_and_swap(&x, y, z); }" HAVE_GCC_ATOMICS)

if(NOT HAVE_GCC_ATOMICS)

check_c_source_compiles("int main(int argc, char **argv) {

int a;

__sync_lock_test_and_set(&a, 1);

__sync_lock_release(&a); }" HAVE_GCC_SYNC_LOCK_TEST_AND_SET)

endif()

endif()

set(CMAKE_REQUIRED_FLAGS "-mpreferred-stack-boundary=2")

check_c_source_compiles("int x = 0; int main(int argc, char **argv) {}"

HAVE_GCC_PREFERRED_STACK_BOUNDARY)

set(CMAKE_REQUIRED_FLAGS)

set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden -Werror")

check_c_source_compiles("

#if !defined(__GNUC__) || __GNUC__ < 4

#error SDL only uses visibility attributes in GCC 4 or newer

#endif

int main(int argc, char **argv) {}" HAVE_GCC_FVISIBILITY)

if(HAVE_GCC_FVISIBILITY)

list(APPEND EXTRA_CFLAGS "-fvisibility=hidden")

endif()

set(CMAKE_REQUIRED_FLAGS)

check_c_compiler_flag(-Wall HAVE_GCC_WALL)

if(HAVE_GCC_WALL)

if(HAIKU)

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-multichar")

endif()

endif()

endif()

if(ASSEMBLY)

if(USE_GCC OR USE_CLANG)

set(SDL_ASSEMBLY_ROUTINES 1)

# TODO: Those all seem to be quite GCC specific - needs to be

# reworked for better compiler support

set(HAVE_ASSEMBLY TRUE)

if(MMX)

set(CMAKE_REQUIRED_FLAGS "-mmmx")

check_c_source_compiles("

#ifdef __MINGW32__

#include <_mingw.h>

#ifdef __MINGW64_VERSION_MAJOR

#include <intrin.h>

#else

#include <mmintrin.h>

#endif

#else

#include <mmintrin.h>

#endif

#ifndef __MMX__

#error Assembler CPP flag not enabled

#endif

int main(int argc, char **argv) { }" HAVE_MMX)

if(HAVE_MMX)

list(APPEND EXTRA_CFLAGS "-mmmx")

endif()

set(CMAKE_REQUIRED_FLAGS)

endif()

if(3DNOW)

set(CMAKE_REQUIRED_FLAGS "-m3dnow")

check_c_source_compiles("

#include <mm3dnow.h>

#ifndef __3dNOW__

#error Assembler CPP flag not enabled

#endif

int main(int argc, char **argv) {

void *p = 0;

_m_prefetch(p);

}" HAVE_3DNOW)

if(HAVE_3DNOW)

list(APPEND EXTRA_CFLAGS "-m3dnow")

endif()

set(CMAKE_REQUIRED_FLAGS)

endif()

if(SSE)

set(CMAKE_REQUIRED_FLAGS "-msse")

check_c_source_compiles("

#ifdef __MINGW32__

#include <_mingw.h>

#ifdef __MINGW64_VERSION_MAJOR

#include <intrin.h>

#else

#include <xmmintrin.h>

#endif

#else

#include <xmmintrin.h>

#endif

#ifndef __SSE__

#error Assembler CPP flag not enabled

#endif

int main(int argc, char **argv) { }" HAVE_SSE)

if(HAVE_SSE)

list(APPEND EXTRA_CFLAGS "-msse")

endif()

set(CMAKE_REQUIRED_FLAGS)

endif()

if(SSE2)

set(CMAKE_REQUIRED_FLAGS "-msse2")

check_c_source_compiles("

#ifdef __MINGW32__

#include <_mingw.h>

#ifdef __MINGW64_VERSION_MAJOR

#include <intrin.h>

#else

#include <emmintrin.h>

#endif

#else

#include <emmintrin.h>

#endif

#ifndef __SSE2__

#error Assembler CPP flag not enabled

#endif

int main(int argc, char **argv) { }" HAVE_SSE2)

if(HAVE_SSE2)

list(APPEND EXTRA_CFLAGS "-msse2")

endif()

set(CMAKE_REQUIRED_FLAGS)

endif()

if(SSEMATH)

if(SSE OR SSE2)

if(USE_GCC)

list(APPEND EXTRA_CFLAGS "-mfpmath=387")

endif()

set(HAVE_SSEMATH TRUE)

endif()

endif()

if(ALTIVEC)

set(CMAKE_REQUIRED_FLAGS "-maltivec")

check_c_source_compiles("

#include <altivec.h>

vector unsigned int vzero() {

return vec_splat_u32(0);

}

int main(int argc, char **argv) { }" HAVE_ALTIVEC_H_HDR)

check_c_source_compiles("

vector unsigned int vzero() {

return vec_splat_u32(0);

}

int main(int argc, char **argv) { }" HAVE_ALTIVEC)

set(CMAKE_REQUIRED_FLAGS)

if(HAVE_ALTIVEC OR HAVE_ALTIVEC_H_HDR)

set(HAVE_ALTIVEC TRUE) # if only HAVE_ALTIVEC_H_HDR is set

list(APPEND EXTRA_CFLAGS "-maltivec")

set(SDL_ALTIVEC_BLITTERS 1)

if(HAVE_ALTIVEC_H_HDR)

set(HAVE_ALTIVEC_H 1)

endif()

endif()

endif()

elseif(MSVC_VERSION GREATER 1500)

# TODO: SDL_cpuinfo.h needs to support the user's configuration wish

# for MSVC - right now it is always activated

if(NOT ARCH_64)

set(HAVE_MMX TRUE)

set(HAVE_3DNOW TRUE)

endif()

set(HAVE_SSE TRUE)

set(HAVE_SSE2 TRUE)

set(SDL_ASSEMBLY_ROUTINES 1)

endif()

# TODO:

#else(ASSEMBLY)

# if(USE_GCC OR USE_CLANG)

# list(APPEND EXTRA_CFLAGS "-mno-sse" "-mno-sse2" "-mno-mmx")

# endif()

endif()

# TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define

# anything.

if(LIBC)

if(WINDOWS AND NOT MINGW)

set(HAVE_LIBC TRUE)

foreach(_HEADER stdio.h string.h ctype.h math.h)

string(TOUPPER "HAVE_${_HEADER}" _UPPER)

string(REPLACE "." "_" _HAVE_H ${_UPPER})

set(${_HAVE_H} 1)

endforeach()

set(HAVE_SIGNAL_H 1)

foreach(_FN

malloc calloc realloc free qsort abs memset memcpy memmove memcmp

strlen _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa

_ultoa strtol strtoul strtoll strtod atoi atof strcmp strncmp

_stricmp _strnicmp sscanf atan atan2 acos asin ceil copysign cos

cosf fabs floor log pow scalbn sin sinf sqrt)

string(TOUPPER ${_FN} _UPPER)

set(HAVE_${_UPPER} 1)

endforeach()

if(NOT CYGWIN AND NOT MINGW)

set(HAVE_ALLOCA 1)

endif()

set(HAVE_M_PI 1)

add_definitions(-D_USE_MATH_DEFINES) # needed for M_PI

set(STDC_HEADERS 1)

else(WINDOWS AND NOT MINGW)

set(HAVE_LIBC TRUE)

check_include_file(sys/types.h HAVE_SYS_TYPES_H)

foreach(_HEADER

stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h

strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)

string(TOUPPER "HAVE_${_HEADER}" _UPPER)

string(REPLACE "." "_" _HAVE_H ${_UPPER})

check_include_file("${_HEADER}" ${_HAVE_H})

endforeach()

check_include_files("dlfcn.h;stdint.h;stddef.h;inttypes.h;stdlib.h;strings.h;string.h;float.h" STDC_HEADERS)

check_type_size("size_t" SIZEOF_SIZE_T)

check_symbol_exists(M_PI math.h HAVE_M_PI)

# TODO: refine the mprotect check

check_c_source_compiles("#include <sys/types.h>

#include <sys/mman.h>

int main() { }" HAVE_MPROTECT)

foreach(_FN

strtod malloc calloc realloc free getenv setenv putenv unsetenv

qsort abs bcopy memset memcpy memmove memcmp strlen strlcpy strlcat

strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa

_uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull

atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp

vsscanf vsnprintf fseeko fseeko64 sigaction setjmp

nanosleep sysconf sysctlbyname

)

string(TOUPPER ${_FN} _UPPER)

set(_HAVEVAR "HAVE_${_UPPER}")

check_function_exists("${_FN}" ${_HAVEVAR})

endforeach()

check_library_exists(m pow "" HAVE_LIBM)

if(HAVE_LIBM)

set(CMAKE_REQUIRED_LIBRARIES m)

foreach(_FN

atan atan2 ceil copysign cos cosf fabs floor log pow scalbn sin

sinf sqrt)

string(TOUPPER ${_FN} _UPPER)

set(_HAVEVAR "HAVE_${_UPPER}")

check_function_exists("${_FN}" ${_HAVEVAR})

endforeach()

set(CMAKE_REQUIRED_LIBRARIES)

list(APPEND EXTRA_LIBS m)

endif()

check_library_exists(iconv iconv_open "" HAVE_LIBICONV)

if(HAVE_LIBICONV)

list(APPEND EXTRA_LIBS iconv)

endif()

check_struct_has_member("struct sigaction" "sa_sigaction" "signal.h" HAVE_SA_SIGACTION)

endif()

else(LIBC)

if(WINDOWS)

set(HAVE_STDARG_H 1)

set(HAVE_STDDEF_H 1)

endif()

endif()

# Enable/disable various subsystems of the SDL library

foreach(_SUB ${SDL_SUBSYSTEMS})

string(TOUPPER ${_SUB} _OPT)

if(NOT SDL_${_OPT})

set(SDL_${_OPT}_DISABLED 1)

endif()

endforeach()

if(SDL_JOYSTICK)

file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})

endif()

if(SDL_HAPTIC)

if(NOT SDL_JOYSTICK)

# Haptic requires some private functions from the joystick subsystem.

message_error("SDL_HAPTIC requires SDL_JOYSTICK, which is not enabled")

endif()

file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})

endif()

if(SDL_POWER)

file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})

endif()

# TODO: in configure.in, the test for LOADSO and SDL_DLOPEN is a bit weird:

# if LOADSO is not wanted, SDL_LOADSO_DISABLED is set

# If however on Unix or APPLE dlopen() is detected via CheckDLOPEN(),

# SDL_LOADSO_DISABLED will not be set, regardless of the LOADSO settings

# General SDL subsystem options, valid for all platforms

if(SDL_AUDIO)

# CheckDummyAudio/CheckDiskAudio - valid for all platforms

if(DUMMYAUDIO)

set(SDL_AUDIO_DRIVER_DUMMY 1)

file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})

set(HAVE_DUMMYAUDIO TRUE)

endif()

if(DISKAUDIO)

set(SDL_AUDIO_DRIVER_DISK 1)

file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})

set(HAVE_DISKAUDIO TRUE)

endif()

endif()

if(SDL_DLOPEN)

# Relevant for Unix/Darwin only

if(UNIX OR APPLE)

CheckDLOPEN()

endif()

endif()

if(SDL_VIDEO)

if(VIDEO_DUMMY)

set(SDL_VIDEO_DRIVER_DUMMY 1)

file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})

set(HAVE_VIDEO_DUMMY TRUE)

set(HAVE_SDL_VIDEO TRUE)

endif()

endif()

# Platform-specific options and settings

if(UNIX AND NOT APPLE)

if(SDL_AUDIO)

if(SYSV5 OR SOLARIS OR HPUX)

set(SDL_AUDIO_DRIVER_SUNAUDIO 1)

file(GLOB SUN_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sun/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${SUN_AUDIO_SOURCES})

set(HAVE_SDL_AUDIO TRUE)

elseif(NETBSD OR OPENBSD)

set(SDL_AUDIO_DRIVER_BSD 1)

file(GLOB BSD_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/bsd/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${BSD_AUDIO_SOURCES})

set(HAVE_SDL_AUDIO TRUE)

elseif(AIX)

set(SDL_AUDIO_DRIVER_PAUDIO 1)

file(GLOB AIX_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/paudio/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${AIX_AUDIO_SOURCES})

set(HAVE_SDL_AUDIO TRUE)

endif()

CheckOSS()

CheckALSA()

CheckPulseAudio()

CheckESD()

CheckARTS()

CheckNAS()

CheckSNDIO()

CheckFusionSound()

endif()

if(SDL_VIDEO)

CheckX11()

CheckDirectFB()

CheckOpenGLX11()

CheckOpenGLESX11()

CheckWayland()

endif()

if(LINUX)

check_c_source_compiles("

#include <linux/input.h>

#ifndef EVIOCGNAME

#error EVIOCGNAME() ioctl not available

#endif

int main(int argc, char** argv) {}" HAVE_INPUT_EVENTS)

check_c_source_compiles("

#include <linux/kd.h>

#include <linux/keyboard.h>

int main(int argc, char **argv)

{

struct kbentry kbe;

kbe.kb_table = KG_CTRL;

ioctl(0, KDGKBENT, &kbe);

}" HAVE_INPUT_KD)

file(GLOB CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/linux/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})

if(HAVE_INPUT_EVENTS)

set(SDL_INPUT_LINUXEV 1)

endif()

if(SDL_HAPTIC AND HAVE_INPUT_EVENTS)

set(SDL_HAPTIC_LINUX 1)

file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/linux/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})

set(HAVE_SDL_HAPTIC TRUE)

endif()

if(HAVE_INPUT_KD)

set(SDL_INPUT_LINUXKD 1)

endif()

check_include_file("libudev.h" HAVE_LIBUDEV_H)

# !!! FIXME: this needs pkg-config to find the include path, I think.

check_include_file("dbus/dbus.h" HAVE_DBUS_DBUS_H)

endif()

if(INPUT_TSLIB)

check_c_source_compiles("

#include \"tslib.h\"

int main(int argc, char** argv) { }" HAVE_INPUT_TSLIB)

if(HAVE_INPUT_TSLIB)

set(SDL_INPUT_TSLIB 1)

list(APPEND EXTRA_LIBS ts)

endif()

endif()

if(SDL_JOYSTICK)

CheckUSBHID() # seems to be BSD specific - limit the test to BSD only?

if(LINUX)

set(SDL_JOYSTICK_LINUX 1)

file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})

set(HAVE_SDL_JOYSTICK TRUE)

endif()

endif()

CheckPTHREAD()

if(CLOCK_GETTIME)

check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)

if(FOUND_CLOCK_GETTIME)

list(APPEND EXTRA_LIBS rt)

set(HAVE_CLOCK_GETTIME 1)

else(FOUND_CLOCK_GETTIME)

check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)

if(FOUND_CLOCK_GETTIME)

set(HAVE_CLOCK_GETTIME 1)

endif()

endif()

endif()

check_include_file(linux/version.h HAVE_LINUX_VERSION_H)

if(HAVE_LINUX_VERSION_H)

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_LINUX_VERSION_H")

endif()

if(SDL_POWER)

if(LINUX)

set(SDL_POWER_LINUX 1)

file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/linux/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})

set(HAVE_SDL_POWER TRUE)

endif()

endif()

if(SDL_FILESYSTEM)

set(SDL_FILESYSTEM_UNIX 1)

file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/unix/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})

set(HAVE_SDL_FILESYSTEM TRUE)

endif()

if(SDL_TIMERS)

set(SDL_TIMER_UNIX 1)

file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})

set(HAVE_SDL_TIMERS TRUE)

endif()

if(RPATH)

set(SDL_RLD_FLAGS "")

if(BSDI OR FREEBSD OR LINUX OR NETBSD)

set(SDL_RLD_FLAGS "-Wl,-rpath,\${libdir}")

elseif(SOLARIS)

set(SDL_RLD_FLAGS "-R\${libdir}")

endif()

set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)

set(HAVE_RPATH TRUE)

endif()

elseif(WINDOWS)

find_program(WINDRES windres)

check_c_source_compiles("

#include <windows.h>

int main(int argc, char **argv) { }" HAVE_WIN32_CC)

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

set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})

# Check for DirectX

if(DIRECTX)

if("$ENV{DXSDK_DIR}" STREQUAL "")

message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")

endif()

set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")

check_include_file(d3d9.h HAVE_D3D_H)

check_include_file(ddraw.h HAVE_DDRAW_H)

check_include_file(dsound.h HAVE_DSOUND_H)

check_include_file(dinput.h HAVE_DINPUT_H)

check_include_file(xaudio2.h HAVE_XAUDIO2_H)

if(HAVE_D3D_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H OR HAVE_XAUDIO2_H)

set(HAVE_DIRECTX TRUE)

# TODO: change $ENV{DXSDL_DIR} to get the path from the include checks

link_directories($ENV{DXSDK_DIR}\\lib\\${PROCESSOR_ARCH})

include_directories($ENV{DXSDK_DIR}\\Include)

endif()

set(CMAKE_REQUIRED_FLAGS)

endif()

if(SDL_AUDIO)

set(SDL_AUDIO_DRIVER_WINMM 1)

file(GLOB WINMM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/winmm/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${WINMM_AUDIO_SOURCES})

set(HAVE_SDL_AUDIO TRUE)

if(HAVE_DSOUND_H)

set(SDL_AUDIO_DRIVER_DSOUND 1)

file(GLOB DSOUND_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/directsound/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})

endif()

if(HAVE_XAUDIO2_H)

set(SDL_AUDIO_DRIVER_XAUDIO2 1)

file(GLOB XAUDIO2_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/xaudio2/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${XAUDIO2_AUDIO_SOURCES})

endif()

endif()

if(SDL_VIDEO)

# requires SDL_LOADSO on Windows (IME, DX, etc.)

if(NOT SDL_LOADSO)

message_error("SDL_VIDEO requires SDL_LOADSO, which is not enabled")

endif()

set(SDL_VIDEO_DRIVER_WINDOWS 1)

file(GLOB WIN_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/windows/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})

if(RENDER_D3D AND HAVE_D3D_H)

set(SDL_VIDEO_RENDER_D3D 1)

set(HAVE_RENDER_D3D TRUE)

endif()

set(HAVE_SDL_VIDEO TRUE)

endif()

if(SDL_THREADS)

set(SDL_THREAD_WINDOWS 1)

set(SOURCE_FILES ${SOURCE_FILES}

${SDL2_SOURCE_DIR}/src/thread/windows/SDL_sysmutex.c

${SDL2_SOURCE_DIR}/src/thread/windows/SDL_syssem.c

${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systhread.c

${SDL2_SOURCE_DIR}/src/thread/windows/SDL_systls.c

${SDL2_SOURCE_DIR}/src/thread/generic/SDL_syscond.c)

set(HAVE_SDL_THREADS TRUE)

endif()

if(SDL_POWER)

set(SDL_POWER_WINDOWS 1)

set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/power/windows/SDL_syspower.c)

set(HAVE_SDL_POWER TRUE)

endif()

if(SDL_FILESYSTEM)

set(SDL_FILESYSTEM_WINDOWS 1)

file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/windows/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})

set(HAVE_SDL_FILESYSTEM TRUE)

endif()

# Libraries for Win32 native and MinGW

list(APPEND EXTRA_LIBS user32 gdi32 winmm imm32 ole32 oleaut32 version uuid)

# TODO: in configure.in the check for timers is set on

# cygwin | mingw32* - does this include mingw32CE?

if(SDL_TIMERS)

set(SDL_TIMER_WINDOWS 1)

file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/windows/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})

set(HAVE_SDL_TIMERS TRUE)

endif()

if(SDL_LOADSO)

set(SDL_LOADSO_WINDOWS 1)

file(GLOB LOADSO_SOURCES ${SDL2_SOURCE_DIR}/src/loadso/windows/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${LOADSO_SOURCES})

set(HAVE_SDL_LOADSO TRUE)

endif()

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

set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})

if(SDL_VIDEO)

if(VIDEO_OPENGL)

set(SDL_VIDEO_OPENGL 1)

set(SDL_VIDEO_OPENGL_WGL 1)

set(SDL_VIDEO_RENDER_OGL 1)

set(HAVE_VIDEO_OPENGL TRUE)

endif()

endif()

if(SDL_JOYSTICK)

if(HAVE_DINPUT_H)

set(SDL_JOYSTICK_DINPUT 1)

set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/joystick/windows/SDL_dxjoystick.c)

list(APPEND EXTRA_LIBS dinput8 dxguid dxerr)

else()

set(SDL_JOYSTICK_WINMM 1)

set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/joystick/windows/SDL_mmjoystick.c)

endif()

set(HAVE_SDL_JOYSTICK TRUE)

endif()

if(SDL_HAPTIC AND HAVE_DINPUT_H)

set(SDL_HAPTIC_DINPUT 1)

set(SOURCE_FILES ${SOURCE_FILES} ${SDL2_SOURCE_DIR}/src/haptic/windows/SDL_syshaptic.c)

set(HAVE_SDL_HAPTIC TRUE)

endif()

file(GLOB VERSION_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.rc)

file(GLOB SDLMAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/windows/*.c)

if(MINGW OR CYGWIN)

list(APPEND EXTRA_LIBS mingw32)

list(APPEND EXTRA_LDFLAGS "-mwindows")

set(SDL_CFLAGS "${SDL_CFLAGS} -Dmain=SDL_main")

list(APPEND SDL_LIBS "-lmingw32" "-lSDL2main" "-mwindows")

endif()

elseif(APPLE)

# TODO: rework this for proper MacOS X, iOS and Darwin support

# Requires the darwin file implementation

if(SDL_FILE)

file(GLOB EXTRA_SOURCES ${PROJECT_SOURCE_DIR}/src/file/cocoa/*.m)

set(SOURCE_FILES ${EXTRA_SOURCES} ${SOURCE_FILES})

set_source_files_properties(${EXTRA_SOURCES} PROPERTIES LANGUAGE C)

set(HAVE_SDL_FILE TRUE)

set(SDL_FRAMEWORK_COCOA 1)

else()

message_error("SDL_FILE must be enabled to build on MacOS X")

endif()

if(SDL_AUDIO)

set(MACOSX_COREAUDIO 1)

file(GLOB AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/coreaudio/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${AUDIO_SOURCES})

set(HAVE_SDL_AUDIO TRUE)

set(SDL_FRAMEWORK_COREAUDIO 1)

set(SDL_FRAMEWORK_AUDIOUNIT 1)

endif()

if(SDL_JOYSTICK)

set(SDL_JOYSTICK_IOKIT 1)

file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})

set(HAVE_SDL_JOYSTICK TRUE)

set(SDL_FRAMEWORK_IOKIT 1)

set(SDL_FRAMEWORK_FF 1)

endif()

if(SDL_HAPTIC)

set(SDL_HAPTIC_IOKIT 1)

file(GLOB HAPTIC_SOURCES ${SDL2_SOURCE_DIR}/src/haptic/darwin/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${HAPTIC_SOURCES})

set(HAVE_SDL_HAPTIC TRUE)

set(SDL_FRAMEWORK_IOKIT 1)

set(SDL_FRAMEWORK_FF 1)

if(NOT SDL_JOYSTICK)

message(FATAL_ERROR "SDL_HAPTIC requires SDL_JOYSTICK to be enabled")

endif()

endif()

if(SDL_POWER)

set(SDL_POWER_MACOSX 1)

file(GLOB POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/macosx/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${POWER_SOURCES})

set(HAVE_SDL_POWER TRUE)

set(SDL_FRAMEWORK_CARBON 1)

set(SDL_FRAMEWORK_IOKIT 1)

endif()

if(SDL_TIMERS)

set(SDL_TIMER_UNIX 1)

file(GLOB TIMER_SOURCES ${SDL2_SOURCE_DIR}/src/timer/unix/*.c)

set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})

set(HAVE_SDL_TIMERS TRUE)

endif(SDL_TIMERS)

if(SDL_FILESYSTEM)

set(SDL_FILESYSTEM_COCOA 1)

file(GLOB FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/cocoa/*.m)

set(SOURCE_FILES ${SOURCE_FILES} ${FILESYSTEM_SOURCES})

set(HAVE_SDL_FILESYSTEM TRUE)

endif()

# Actually load the frameworks at the end so we don't duplicate include.

if(SDL_FRAMEWORK_COCOA)

find_library(COCOA_LIBRARY Cocoa)

list(APPEND EXTRA_LIBS ${COCOA_LIBRARY})

endif()

if(SDL_FRAMEWORK_IOKIT)

find_library(IOKIT IOKit)

list(APPEND EXTRA_LIBS ${IOKIT})