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CMakeLists.txt
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if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the SDL source code and call cmake from there")
endif()
cmake_minimum_required(VERSION 2.8)
project(SDL2 C)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckIncludeFiles)
include(CheckIncludeFile)
include(CheckSymbolExists)
include(CheckCSourceRuns)
include(CheckCCompilerFlag)
include(CheckTypeSize)
include(CheckStructHasMember)
include(CMakeDependentOption)
include(FindPkgConfig)
set(CMAKE_MODULE_PATH "${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 4)
set(SDL_INTERFACE_AGE 0)
set(SDL_BINARY_AGE 4)
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} - ${SDL_INTERFACE_AGE}")
math(EXPR LT_MAJOR "${LT_CURRENT}- ${LT_AGE}")
set(LT_REVISION "${SDL_INTERFACE_AGE}")
set(LT_RELEASE "${SDL_MAJOR_VERSION}.${SDL_MINOR_VERSION}")
set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}")
message(STATUS "${LT_VERSION} :: ${LT_AGE} :: ${LT_REVISION} :: ${LT_CURRENT} :: ${LT_RELEASE}")
# 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()
if (UNIX_OR_MAC_SYS AND NOT EMSCRIPTEN) # JavaScript does not yet have threading support, so disable pthreads when building for Emscripten.
set(SDL_PTHREADS_ENABLED_BY_DEFAULT ON)
else()
set(SDL_PTHREADS_ENABLED_BY_DEFAULT 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()
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()
endif()
# Make sure /RTC1 is disabled, otherwise it will use functions from the CRT
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/RTC(su|[1su])" "" ${flag_var} "${${flag_var}}")
endforeach(flag_var)
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 "")
# Emscripten toolchain has a nonempty default value for this, and the checks
# in this file need to change that, so remember the original value, and
# restore back to that afterwards. For check_function_exists() to work in
# Emscripten, this value must be at its default value.
set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
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 ${ORIG_CMAKE_REQUIRED_FLAGS})
if(HAVE_GCC_NO_CYGWIN)
list(APPEND EXTRA_LDFLAGS "-mno-cygwin")
list(APPEND SDL_LIBS "-mno-cygwin")
endif()
set(SDL_CFLAGS "${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)
# All these ENABLED_BY_DEFAULT vars will default to ON if not specified, so
# you only need to have a platform override them if they are disabling.
set(OPT_DEF_ASM TRUE)
if(EMSCRIPTEN)
# Set up default values for the currently supported set of subsystems:
# Emscripten/Javascript does not have assembly support, a dynamic library
# loading architecture, low-level CPU inspection or multithreading.
set(OPT_DEF_ASM FALSE)
set(SDL_SHARED_ENABLED_BY_DEFAULT OFF)
set(SDL_ATOMIC_ENABLED_BY_DEFAULT OFF)
set(SDL_THREADS_ENABLED_BY_DEFAULT OFF)
set(SDL_LOADSO_ENABLED_BY_DEFAULT OFF)
set(SDL_CPUINFO_ENABLED_BY_DEFAULT OFF)
set(SDL_DLOPEN_ENABLED_BY_DEFAULT OFF)
endif()
if (NOT DEFINED SDL_SHARED_ENABLED_BY_DEFAULT)
set(SDL_SHARED_ENABLED_BY_DEFAULT ON)
endif()
set(SDL_SUBSYSTEMS
Atomic Audio Video Render Events Joystick Haptic Power Threads Timers
File Loadso CPUinfo Filesystem Dlopen)
foreach(_SUB ${SDL_SUBSYSTEMS})
string(TOUPPER ${_SUB} _OPT)
if (NOT DEFINED SDL_${_OPT}_ENABLED_BY_DEFAULT)
set(SDL_${_OPT}_ENABLED_BY_DEFAULT ON)
endif()
option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ${SDL_${_OPT}_ENABLED_BY_DEFAULT})
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" 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" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
dep_option(PTHREADS_SEM "Use pthread semaphores" ON "PTHREADS" OFF)
set_option(SDL_DLOPEN "Use dlopen for shared object loading" ${SDL_DLOPEN_ENABLED_BY_DEFAULT})
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(WAYLAND_SHARED "Dynamically load Wayland support" ON "VIDEO_WAYLAND" OFF)
dep_option(VIDEO_WAYLAND_QT_TOUCH "QtWayland server support for Wayland video driver" ON "VIDEO_WAYLAND" OFF)
set_option(VIDEO_MIR "Use Mir video driver" ${UNIX_SYS})
dep_option(MIR_SHARED "Dynamically load Mir support" ON "VIDEO_MIR" OFF)
set_option(VIDEO_RPI "Use Raspberry Pi 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})
set_option(VIDEO_VIVANTE "Use Vivante EGL video driver" ${UNIX_SYS})
# 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 ${SDL_SHARED_ENABLED_BY_DEFAULT} 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 ${ORIG_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 ${ORIG_CMAKE_REQUIRED_FLAGS})
check_c_compiler_flag(-Wall HAVE_GCC_WALL)
if(HAVE_GCC_WALL)
list(APPEND EXTRA_CFLAGS "-Wall")
if(HAIKU)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-multichar")
endif()
endif()
check_c_compiler_flag(-Wshadow HAVE_GCC_WSHADOW)
if(HAVE_GCC_WSHADOW)
list(APPEND EXTRA_CFLAGS "-Wshadow")
endif()
set(CMAKE_REQUIRED_FLAGS "-Wl,--no-undefined")
check_c_compiler_flag("" HAVE_NO_UNDEFINED)
set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
if(HAVE_NO_UNDEFINED)
list(APPEND EXTRA_LDFLAGS "-Wl,--no-undefined")
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 ${ORIG_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 ${ORIG_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 ${ORIG_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 ${ORIG_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 ${ORIG_CMAKE_REQUIRED_FLAGS})
if(HAVE_ALTIVEC OR HAVE_ALTIVEC_H_HDR)
set(HAVE_ALTIVEC TRUE) # if only HAVE_ALTIVEC_H_HDR is set
list(APPEND EXTRA_CFLAGS "-maltivec")
set(SDL_ALTIVEC_BLITTERS 1)
if(HAVE_ALTIVEC_H_HDR)
set(HAVE_ALTIVEC_H 1)
endif()
endif()
endif()
elseif(MSVC_VERSION GREATER 1500)
# TODO: SDL_cpuinfo.h needs to support the user's configuration wish
# for MSVC - right now it is always activated
if(NOT ARCH_64)
set(HAVE_MMX TRUE)
set(HAVE_3DNOW TRUE)
endif()
set(HAVE_SSE TRUE)
set(HAVE_SSE2 TRUE)
set(SDL_ASSEMBLY_ROUTINES 1)
endif()
# TODO:
#else()
# if(USE_GCC OR USE_CLANG)
# list(APPEND EXTRA_CFLAGS "-mno-sse" "-mno-sse2" "-mno-mmx")
# endif()
endif()
# TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define
# anything.
if(LIBC)
if(WINDOWS AND NOT MINGW)
set(HAVE_LIBC TRUE)
foreach(_HEADER stdio.h string.h ctype.h math.h)
string(TOUPPER "HAVE_${_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 sqrtf tan tanf)
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()
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 sqrtf tan tanf acos asin)
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)
set(HAVE_ICONV 1)
endif()
if(NOT APPLE)
check_include_file(alloca.h HAVE_ALLOCA_H)
check_function_exists(alloca HAVE_ALLOCA)
else()
set(HAVE_ALLOCA_H 1)
set(HAVE_ALLOCA 1)
endif()
check_struct_has_member("struct sigaction" "sa_sigaction" "signal.h" HAVE_SA_SIGACTION)
endif()
else()
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()
if(ANDROID)
file(GLOB ANDROID_CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES})
file(GLOB ANDROID_MAIN_SOURCES ${SDL2_SOURCE_DIR}/src/main/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_MAIN_SOURCES})
if(SDL_AUDIO)
set(SDL_AUDIO_DRIVER_ANDROID 1)
file(GLOB ANDROID_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_AUDIO_SOURCES})
set(HAVE_SDL_AUDIO TRUE)
endif()
if(SDL_FILESYSTEM)
set(SDL_FILESYSTEM_ANDROID 1)
file(GLOB ANDROID_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_FILESYSTEM_SOURCES})
set(HAVE_SDL_FILESYSTEM TRUE)
endif()
if(SDL_JOYSTICK)
set(SDL_JOYSTICK_ANDROID 1)
file(GLOB ANDROID_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_JOYSTICK_SOURCES})
set(HAVE_SDL_JOYSTICK TRUE)
endif()
if(SDL_POWER)
set(SDL_POWER_ANDROID 1)
file(GLOB ANDROID_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_POWER_SOURCES})
set(HAVE_SDL_POWER TRUE)
endif()
if(SDL_VIDEO)
set(SDL_VIDEO_DRIVER_ANDROID 1)
file(GLOB ANDROID_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/android/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_VIDEO_SOURCES})
set(HAVE_SDL_VIDEO TRUE)
#enable gles
if(VIDEO_OPENGLES)
set(SDL_VIDEO_OPENGL_EGL 1)
set(HAVE_VIDEO_OPENGLES TRUE)
set(SDL_VIDEO_OPENGL_ES2 1)
set(SDL_VIDEO_RENDER_OGL_ES2 1)
endif()
endif()
list(APPEND EXTRA_LDFLAGS "-Wl,--undefined=Java_org_libsdl_app_SDLActivity_nativeInit")
endif()
# Platform-specific options and settings
if(EMSCRIPTEN)
# Hide noisy warnings that intend to aid mostly during initial stages of porting a new
# project. Uncomment at will for verbose cross-compiling -I/../ path info.
add_definitions(-Wno-warn-absolute-paths)
if(SDL_AUDIO)
set(SDL_AUDIO_DRIVER_EMSCRIPTEN 1)
file(GLOB EM_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/emscripten/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${EM_AUDIO_SOURCES})
set(HAVE_SDL_AUDIO TRUE)
endif()
if(SDL_FILESYSTEM)
set(SDL_FILESYSTEM_EMSCRIPTEN 1)
file(GLOB EM_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/emscripten/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${EM_FILESYSTEM_SOURCES})
set(HAVE_SDL_FILESYSTEM TRUE)
endif()
if(SDL_JOYSTICK)
set(SDL_JOYSTICK_EMSCRIPTEN 1)
file(GLOB EM_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/emscripten/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${EM_JOYSTICK_SOURCES})
set(HAVE_SDL_JOYSTICK TRUE)
endif()
if(SDL_POWER)
set(SDL_POWER_EMSCRIPTEN 1)
file(GLOB EM_POWER_SOURCES ${SDL2_SOURCE_DIR}/src/power/emscripten/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${EM_POWER_SOURCES})
set(HAVE_SDL_POWER TRUE)
endif()
if(SDL_VIDEO)
set(SDL_VIDEO_DRIVER_EMSCRIPTEN 1)
file(GLOB EM_VIDEO_SOURCES ${SDL2_SOURCE_DIR}/src/video/emscripten/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${EM_VIDEO_SOURCES})
set(HAVE_SDL_VIDEO TRUE)
#enable gles
if(VIDEO_OPENGLES)
set(SDL_VIDEO_OPENGL_EGL 1)
set(HAVE_VIDEO_OPENGLES TRUE)
set(SDL_VIDEO_OPENGL_ES2 1)
set(SDL_VIDEO_RENDER_OGL_ES2 1)
endif()
endif()
elseif(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)
# Need to check for Raspberry PI first and add platform specific compiler flags, otherwise the test for GLES fails!
CheckRPI()
CheckX11()
CheckMir()
CheckDirectFB()
CheckOpenGLX11()
CheckOpenGLESX11()
CheckWayland()
CheckVivante()
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 AND NOT ANDROID)
set(SDL_JOYSTICK_LINUX 1)
file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/linux/*.c)
set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_SOURCES})
set(HAVE_SDL_JOYSTICK TRUE)
endif()
endif()
CheckPTHREAD()
if(CLOCK_GETTIME)
check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
if(FOUND_CLOCK_GETTIME)
list(APPEND EXTRA_LIBS rt)
set(HAVE_CLOCK_GETTIME 1)
else()
check_library_exists(c clock_gettime "" FOUND_CLOCK_GETTIME)
if(FOUND_CLOCK_GETTIME)
set(HAVE_CLOCK_GETTIME 1)
endif()
endif()
endif()
check_include_file(linux/version.h HAVE_LINUX_VERSION_H)
if(HAVE_LINUX_VERSION_H)
set(CMAKE_C_FLAGS "${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})
if(MSVC)
# Prevent codegen that would use the VC runtime libraries.
add_definitions(/GS-)
if(NOT ARCH_64)
add_definitions(/arch:SSE)
endif()
endif()
# Check for DirectX
if(DIRECTX)
if(DEFINED MSVC_VERSION AND NOT ${MSVC_VERSION} LESS 1700)
set(USE_WINSDK_DIRECTX TRUE)
endif()
if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
if("$ENV{DXSDK_DIR}" STREQUAL "")
message_error("DIRECTX requires the \$DXSDK_DIR environment variable to be set")
endif()
set(CMAKE_REQUIRED_FLAGS "/I\"$ENV{DXSDK_DIR}\\Include\"")
endif()
if(HAVE_WIN32_CC)
# xinput.h may need windows.h, but doesn't include it itself.
check_c_source_compiles("
#include <windows.h>
#include <xinput.h>
int main(int argc, char **argv) { }" HAVE_XINPUT_H)
else()
check_include_file(xinput.h HAVE_XINPUT_H)
endif()
check_include_file(d3d9.h HAVE_D3D_H)
check_include_file(d3d11_1.h HAVE_D3D11_H)
check_include_file(ddraw.h HAVE_DDRAW_H)
check_include_file(dsound.h HAVE_DSOUND_H)
check_include_file(dinput.h HAVE_DINPUT_H)
check_include_file(xaudio2.h HAVE_XAUDIO2_H)
check_include_file(dxgi.h HAVE_DXGI_H)
if(HAVE_D3D_H OR HAVE_D3D11_H OR HAVE_DDRAW_H OR HAVE_DSOUND_H OR HAVE_DINPUT_H OR HAVE_XAUDIO2_H)
set(HAVE_DIRECTX TRUE)
if(NOT CMAKE_COMPILER_IS_MINGW AND NOT USE_WINSDK_DIRECTX)
# 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()
endif()
set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
endif()