1set(CMAKE_THREAD_LIBS_INIT "-lpthread") 2set(CMAKE_HAVE_THREADS_LIBRARY 1) 3set(CMAKE_USE_WIN32_THREADS_INIT 0) 4set(CMAKE_USE_PTHREADS_INIT 1) 5 6set(USED_CMAKE_GENERATOR "${CMAKE_GENERATOR}" CACHE STRING "Expose CMAKE_GENERATOR" FORCE) 7 8if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.18.3") 9 set(MODERN_CMAKE YES) 10 message(STATUS "Merging integrated CMake 3.18.3+ iOS toolchain(s) with this toolchain!") 11endif() 12 13# Get the Xcode version 14execute_process(COMMAND xcodebuild -version OUTPUT_VARIABLE XCODE_VERSION ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE) 15string(REGEX MATCH "Xcode [0-9\\.]+" XCODE_VERSION "${XCODE_VERSION}") 16string(REGEX REPLACE "Xcode ([0-9\\.]+)" "\\1" XCODE_VERSION "${XCODE_VERSION}") 17 18set(FORCE_CACHE FORCE) 19get_property(_CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE) 20if(_CMAKE_IN_TRY_COMPILE) 21 unset(FORCE_CACHE) 22endif() 23 24if(NOT DEFINED PLATFORM) 25 if(CMAKE_OSX_ARCHITECTURES) 26 if(CMAKE_OSX_ARCHITECTURES MATCHES ".*arm.*" AND CMAKE_OSX_SYSROOT MATCHES ".*iphoneos.*") 27 set(PLATFORM "OS") 28 elseif(CMAKE_OSX_ARCHITECTURES MATCHES "i386" AND CMAKE_OSX_SYSROOT MATCHES ".*iphonesimulator.*") 29 set(PLATFORM "SIMULATOR") 30 endif() 31 endif() 32 if(NOT PLATFORM) 33 set(PLATFORM "OS") 34 endif() 35endif() 36 37set(PLATFORM_INT "${PLATFORM}" CACHE STRING "Type of platform for which the build targets.") 38 39if(PLATFORM_INT STREQUAL "OS" AND DEPLOYMENT_TARGET VERSION_GREATER_EQUAL 10.3.4) 40 set(PLATFORM_INT "OS64") 41 message(STATUS "Targeting minimum SDK version ${DEPLOYMENT_TARGET}. Dropping 32-bit support.") 42elseif(PLATFORM_INT STREQUAL "SIMULATOR" AND DEPLOYMENT_TARGET VERSION_GREATER_EQUAL 10.3.4) 43 set(PLATFORM_INT "SIMULATOR64") 44 message(STATUS "Targeting minimum SDK version ${DEPLOYMENT_TARGET}. Dropping 32-bit support.") 45endif() 46 47if(PLATFORM_INT STREQUAL "OS") 48 set(SDK_NAME iphoneos) 49 if(NOT ARCHS) 50 set(ARCHS armv7 armv7s arm64) 51 endif() 52elseif(PLATFORM_INT STREQUAL "OS64") 53 set(SDK_NAME iphoneos) 54 if(NOT ARCHS) 55 if(XCODE_VERSION VERSION_GREATER 10.0) 56 set(ARCHS arm64) 57 else() 58 set(ARCHS arm64) 59 endif() 60 endif() 61elseif(PLATFORM_INT STREQUAL "OS64COMBINED") 62 set(SDK_NAME iphoneos) 63 if(MODERN_CMAKE) 64 if(NOT ARCHS) 65 if(XCODE_VERSION VERSION_GREATER 10.0) 66 set(ARCHS arm64 x86_64) 67 else() 68 set(ARCHS arm64 x86_64) 69 endif() 70 endif() 71 else() 72 message(FATAL_ERROR "Please make sure that you are running CMake 3.18.3+ to make the OS64COMBINED setting work") 73 endif() 74elseif(PLATFORM_INT STREQUAL "SIMULATOR") 75 set(SDK_NAME iphonesimulator) 76 if(NOT ARCHS) 77 set(ARCHS i386) 78 endif() 79 message(DEPRECATION "SIMULATOR IS DEPRECATED. Consider using SIMULATOR64 instead.") 80elseif(PLATFORM_INT STREQUAL "SIMULATOR64") 81 set(SDK_NAME iphonesimulator) 82 if(NOT ARCHS) 83 set(ARCHS x86_64) 84 endif() 85else() 86 message(FATAL_ERROR "Invalid PLATFORM: ${PLATFORM_INT}") 87endif() 88message(STATUS "Configuring ${SDK_NAME} build for platform: ${PLATFORM_INT}, architecture(s): ${ARCHS}") 89 90if(MODERN_CMAKE AND PLATFORM_INT MATCHES ".*COMBINED" AND NOT USED_CMAKE_GENERATOR MATCHES "Xcode") 91 message(FATAL_ERROR "The COMBINED options only work with Xcode generator, -G Xcode") 92endif() 93 94execute_process(COMMAND xcodebuild -version -sdk ${SDK_NAME} Path 95 OUTPUT_VARIABLE CMAKE_OSX_SYSROOT_INT 96 ERROR_QUIET 97 OUTPUT_STRIP_TRAILING_WHITESPACE) 98if(NOT DEFINED CMAKE_OSX_SYSROOT_INT AND NOT DEFINED CMAKE_OSX_SYSROOT) 99 message(SEND_ERROR "Please make sure that Xcode is installed and that the toolchain" 100 "is pointing to the correct path. Please run:" 101 "sudo xcode-select -s /Applications/Xcode.app/Contents/Developer" 102 "and see if that fixes the problem for you.") 103 message(FATAL_ERROR "Invalid CMAKE_OSX_SYSROOT: ${CMAKE_OSX_SYSROOT} " 104 "does not exist.") 105elseif(DEFINED CMAKE_OSX_SYSROOT) 106 message(STATUS "Using SDK: ${CMAKE_OSX_SYSROOT} for platform: ${PLATFORM_INT} when checking compatibility") 107elseif(DEFINED CMAKE_OSX_SYSROOT_INT) 108 message(STATUS "Using SDK: ${CMAKE_OSX_SYSROOT_INT} for platform: ${PLATFORM_INT}") 109 set(CMAKE_OSX_SYSROOT "${CMAKE_OSX_SYSROOT_INT}" CACHE INTERNAL "") 110endif() 111 112if(USED_CMAKE_GENERATOR MATCHES "Xcode") 113 set(CMAKE_OSX_SYSROOT "${SDK_NAME}" CACHE INTERNAL "") 114endif() 115 116if(NOT DEFINED DEPLOYMENT_TARGET) 117 set(DEPLOYMENT_TARGET "9.0" CACHE STRING "Minimum SDK version to build for.") 118 message(STATUS "Using the default min-version since DEPLOYMENT_TARGET not provided!") 119endif() 120if(NOT DEFINED ENABLE_BITCODE AND NOT ARCHS MATCHES "((^|;|, )(i386|x86_64))+") 121 message(STATUS "Enabling bitcode support by default. ENABLE_BITCODE not provided!") 122 set(ENABLE_BITCODE TRUE) 123elseif(NOT DEFINED ENABLE_BITCODE) 124 message(STATUS "Disabling bitcode support by default on simulators. ENABLE_BITCODE not provided for override!") 125 set(ENABLE_BITCODE FALSE) 126endif() 127set(ENABLE_BITCODE_INT ${ENABLE_BITCODE} CACHE BOOL "Whether or not to enable bitcode" ${FORCE_CACHE}) 128if(NOT DEFINED ENABLE_ARC) 129 set(ENABLE_ARC TRUE) 130 message(STATUS "Enabling ARC support by default. ENABLE_ARC not provided!") 131endif() 132set(ENABLE_ARC_INT ${ENABLE_ARC} CACHE BOOL "Whether or not to enable ARC" ${FORCE_CACHE}) 133if(NOT DEFINED ENABLE_VISIBILITY) 134 set(ENABLE_VISIBILITY FALSE) 135 message(STATUS "Hiding symbols visibility by default. ENABLE_VISIBILITY not provided!") 136endif() 137set(ENABLE_VISIBILITY_INT ${ENABLE_VISIBILITY} CACHE BOOL 138 "Whether or not to hide symbols (-fvisibility=hidden)" ${FORCE_CACHE}) 139# Set strict compiler checks or not 140if(NOT DEFINED ENABLE_STRICT_TRY_COMPILE) 141 set(ENABLE_STRICT_TRY_COMPILE FALSE) 142 message(STATUS "Using NON-strict compiler checks by default. ENABLE_STRICT_TRY_COMPILE not provided!") 143endif() 144set(ENABLE_STRICT_TRY_COMPILE_INT ${ENABLE_STRICT_TRY_COMPILE} CACHE BOOL 145 "Whether or not to use strict compiler checks" ${FORCE_CACHE}) 146# Get the SDK version information. 147execute_process(COMMAND xcodebuild -sdk ${CMAKE_OSX_SYSROOT} -version SDKVersion 148 OUTPUT_VARIABLE SDK_VERSION 149 ERROR_QUIET 150 OUTPUT_STRIP_TRAILING_WHITESPACE) 151 152if(NOT DEFINED CMAKE_DEVELOPER_ROOT AND NOT USED_CMAKE_GENERATOR MATCHES "Xcode") 153 get_filename_component(PLATFORM_SDK_DIR ${CMAKE_OSX_SYSROOT} PATH) 154 get_filename_component(CMAKE_DEVELOPER_ROOT ${PLATFORM_SDK_DIR} PATH) 155 156 if(NOT DEFINED CMAKE_DEVELOPER_ROOT) 157 message(FATAL_ERROR "Invalid CMAKE_DEVELOPER_ROOT: " 158 "${CMAKE_DEVELOPER_ROOT} does not exist.") 159 endif() 160endif() 161if(NOT CMAKE_C_COMPILER) 162 execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find clang 163 OUTPUT_VARIABLE CMAKE_C_COMPILER 164 ERROR_QUIET 165 OUTPUT_STRIP_TRAILING_WHITESPACE) 166 message(STATUS "Using C compiler: ${CMAKE_C_COMPILER}") 167endif() 168if(NOT CMAKE_CXX_COMPILER) 169 execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find clang++ 170 OUTPUT_VARIABLE CMAKE_CXX_COMPILER 171 ERROR_QUIET 172 OUTPUT_STRIP_TRAILING_WHITESPACE) 173 message(STATUS "Using CXX compiler: ${CMAKE_CXX_COMPILER}") 174endif() 175execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find libtool 176 OUTPUT_VARIABLE BUILD_LIBTOOL 177 ERROR_QUIET 178 OUTPUT_STRIP_TRAILING_WHITESPACE) 179message(STATUS "Using libtool: ${BUILD_LIBTOOL}") 180 181 182set(CMAKE_C_CREATE_STATIC_LIBRARY 183 "${BUILD_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") 184set(CMAKE_CXX_CREATE_STATIC_LIBRARY 185 "${BUILD_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") 186 187if(NOT CMAKE_INSTALL_NAME_TOOL) 188 execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find install_name_tool 189 OUTPUT_VARIABLE CMAKE_INSTALL_NAME_TOOL_INT 190 ERROR_QUIET 191 OUTPUT_STRIP_TRAILING_WHITESPACE) 192 set(CMAKE_INSTALL_NAME_TOOL ${CMAKE_INSTALL_NAME_TOOL_INT} CACHE STRING "" ${FORCE_CACHE}) 193 message(STATUS "Using install_name_tool: ${CMAKE_INSTALL_NAME_TOOL}") 194endif() 195 196execute_process(COMMAND uname -r 197 OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION 198 ERROR_QUIET 199 OUTPUT_STRIP_TRAILING_WHITESPACE) 200 201if(MODERN_CMAKE) 202 if(SDK_NAME MATCHES "iphone") 203 set(CMAKE_SYSTEM_NAME iOS CACHE INTERNAL "" ${FORCE_CACHE}) 204 endif() 205 206 if(PLATFORM_INT MATCHES ".*COMBINED") 207 set(CMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH NO CACHE INTERNAL "" ${FORCE_CACHE}) 208 set(CMAKE_IOS_INSTALL_COMBINED YES CACHE INTERNAL "" ${FORCE_CACHE}) 209 message(STATUS "Will combine built (static) artifacts into FAT lib...") 210 endif() 211else() 212 set(CMAKE_SYSTEM_NAME Darwin CACHE INTERNAL "" ${FORCE_CACHE}) 213endif() 214set(CMAKE_SYSTEM_VERSION ${SDK_VERSION} CACHE INTERNAL "") 215set(UNIX TRUE CACHE BOOL "") 216set(APPLE TRUE CACHE BOOL "") 217set(IOS TRUE CACHE BOOL "") 218set(CMAKE_AR ar CACHE FILEPATH "" FORCE) 219set(CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE) 220set(CMAKE_STRIP strip CACHE FILEPATH "" FORCE) 221set(CMAKE_OSX_ARCHITECTURES ${ARCHS} CACHE STRING "Build architecture for iOS") 222if(ENABLE_STRICT_TRY_COMPILE_INT) 223 message(STATUS "Using strict compiler checks (default in CMake).") 224else() 225 set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) 226endif() 227set(CMAKE_SHARED_LIBRARY_PREFIX "lib") 228set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") 229set(CMAKE_SHARED_MODULE_PREFIX "lib") 230set(CMAKE_SHARED_MODULE_SUFFIX ".so") 231set(CMAKE_C_COMPILER_ABI ELF) 232set(CMAKE_CXX_COMPILER_ABI ELF) 233set(CMAKE_C_HAS_ISYSROOT 1) 234set(CMAKE_CXX_HAS_ISYSROOT 1) 235set(CMAKE_MODULE_EXISTS 1) 236set(CMAKE_DL_LIBS "") 237set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ") 238set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ") 239set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") 240set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") 241 242if(ARCHS MATCHES "((^|;|, )(arm64|arm64e|x86_64))+") 243 set(CMAKE_C_SIZEOF_DATA_PTR 8) 244 set(CMAKE_CXX_SIZEOF_DATA_PTR 8) 245 if(ARCHS MATCHES "((^|;|, )(arm64|arm64e))+") 246 set(CMAKE_SYSTEM_PROCESSOR "aarch64") 247 else() 248 set(CMAKE_SYSTEM_PROCESSOR "x86_64") 249 endif() 250 message(STATUS "Using a data_ptr size of 8") 251else() 252 set(CMAKE_C_SIZEOF_DATA_PTR 4) 253 set(CMAKE_CXX_SIZEOF_DATA_PTR 4) 254 set(CMAKE_SYSTEM_PROCESSOR "arm") 255 message(STATUS "Using a data_ptr size of 4") 256endif() 257 258message(STATUS "Building for minimum ${SDK_NAME} version: ${DEPLOYMENT_TARGET} (SDK version: ${SDK_VERSION})") 259 260if(PLATFORM_INT STREQUAL "OS" OR PLATFORM_INT STREQUAL "OS64") 261 if(XCODE_VERSION VERSION_LESS 7.0) 262 set(SDK_NAME_VERSION_FLAGS "-mios-version-min=${DEPLOYMENT_TARGET}") 263 else() 264 set(SDK_NAME_VERSION_FLAGS "-m${SDK_NAME}-version-min=${DEPLOYMENT_TARGET}") 265 endif() 266else() 267 set(SDK_NAME_VERSION_FLAGS "-mios-simulator-version-min=${DEPLOYMENT_TARGET}") 268endif() 269message(STATUS "Version flags set to: ${SDK_NAME_VERSION_FLAGS}") 270set(CMAKE_OSX_DEPLOYMENT_TARGET ${DEPLOYMENT_TARGET} CACHE STRING "Set CMake deployment target" ${FORCE_CACHE}) 271 272if(ENABLE_BITCODE_INT) 273 set(BITCODE "-fembed-bitcode") 274 set(CMAKE_XCODE_ATTRIBUTE_BITCODE_GENERATION_MODE bitcode CACHE INTERNAL "") 275 message(STATUS "Enabling bitcode support.") 276else() 277 set(BITCODE "") 278 set(CMAKE_XCODE_ATTRIBUTE_ENABLE_BITCODE NO CACHE INTERNAL "") 279 message(STATUS "Disabling bitcode support.") 280endif() 281 282if(ENABLE_ARC_INT) 283 set(FOBJC_ARC "-fobjc-arc") 284 set(CMAKE_XCODE_ATTRIBUTE_CLANG_ENABLE_OBJC_ARC YES CACHE INTERNAL "") 285 message(STATUS "Enabling ARC support.") 286else() 287 set(FOBJC_ARC "-fno-objc-arc") 288 set(CMAKE_XCODE_ATTRIBUTE_CLANG_ENABLE_OBJC_ARC NO CACHE INTERNAL "") 289 message(STATUS "Disabling ARC support.") 290endif() 291 292if(NOT ENABLE_VISIBILITY_INT) 293 set(VISIBILITY "-fvisibility=hidden") 294 set(CMAKE_XCODE_ATTRIBUTE_GCC_SYMBOLS_PRIVATE_EXTERN YES CACHE INTERNAL "") 295 message(STATUS "Hiding symbols (-fvisibility=hidden).") 296else() 297 set(VISIBILITY "") 298 set(CMAKE_XCODE_ATTRIBUTE_GCC_SYMBOLS_PRIVATE_EXTERN NO CACHE INTERNAL "") 299endif() 300 301if(USED_CMAKE_GENERATOR MATCHES "Xcode") 302 message(STATUS "Not setting any manual command-line buildflags, since Xcode is selected as generator.") 303else() 304 set(CMAKE_C_FLAGS "${SDK_NAME_VERSION_FLAGS} ${BITCODE} -fobjc-abi-version=2 ${FOBJC_ARC} ${CMAKE_C_FLAGS}") 305 set(CMAKE_CXX_FLAGS 306 "${SDK_NAME_VERSION_FLAGS} ${BITCODE} ${VISIBILITY} 307 -fvisibility-inlines-hidden -fobjc-abi-version=2 ${FOBJC_ARC} ${CMAKE_CXX_FLAGS}") 308 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -O0 -g ${CMAKE_CXX_FLAGS_DEBUG}") 309 set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS} -DNDEBUG -Os -ffast-math ${CMAKE_CXX_FLAGS_MINSIZEREL}") 310 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO 311 "${CMAKE_CXX_FLAGS} -DNDEBUG -O2 -g -ffast-math ${CMAKE_CXX_FLAGS_RELWITHDEBINFO}") 312 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -DNDEBUG -O3 -ffast-math ${CMAKE_CXX_FLAGS_RELEASE}") 313 set(CMAKE_C_LINK_FLAGS "${SDK_NAME_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}") 314 set(CMAKE_CXX_LINK_FLAGS "${SDK_NAME_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}") 315 316 list(APPEND VARS_TO_FORCE_IN_CACHE 317 CMAKE_C_FLAGS 318 CMAKE_CXX_FLAGS 319 CMAKE_CXX_FLAGS_DEBUG 320 CMAKE_CXX_FLAGS_RELWITHDEBINFO 321 CMAKE_CXX_FLAGS_MINSIZEREL 322 CMAKE_CXX_FLAGS_RELEASE 323 CMAKE_C_LINK_FLAGS 324 CMAKE_CXX_LINK_FLAGS) 325 foreach(VAR_TO_FORCE ${VARS_TO_FORCE_IN_CACHE}) 326 set(${VAR_TO_FORCE} "${${VAR_TO_FORCE}}" CACHE STRING "") 327 endforeach() 328endif() 329 330set(CMAKE_PLATFORM_HAS_INSTALLNAME 1) 331set(CMAKE_SHARED_LINKER_FLAGS "-rpath @executable_path/Frameworks -rpath @loader_path/Frameworks") 332set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names") 333set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -Wl,-headerpad_max_install_names") 334set(CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,") 335set(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,") 336set(CMAKE_FIND_LIBRARY_SUFFIXES ".tbd" ".dylib" ".so" ".a") 337set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-install_name") 338 339set(CMAKE_FIND_ROOT_PATH 340 ${CMAKE_OSX_SYSROOT_INT} ${CMAKE_PREFIX_PATH} 341 CACHE STRING "Root path that will be prepended to all search paths") 342 343set(CMAKE_FIND_FRAMEWORK FIRST) 344 345set(CMAKE_FRAMEWORK_PATH 346 ${CMAKE_DEVELOPER_ROOT}/Library/PrivateFrameworks 347 ${CMAKE_OSX_SYSROOT_INT}/System/Library/Frameworks 348 ${CMAKE_FRAMEWORK_PATH} CACHE STRING "Frameworks search paths" ${FORCE_CACHE}) 349 350if(NOT CMAKE_FIND_ROOT_PATH_MODE_PROGRAM) 351 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH CACHE STRING "" ${FORCE_CACHE}) 352endif() 353if(NOT CMAKE_FIND_ROOT_PATH_MODE_LIBRARY) 354 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY CACHE STRING "" ${FORCE_CACHE}) 355endif() 356if(NOT CMAKE_FIND_ROOT_PATH_MODE_INCLUDE) 357 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY CACHE STRING "" ${FORCE_CACHE}) 358endif() 359if(NOT CMAKE_FIND_ROOT_PATH_MODE_PACKAGE) 360 set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY CACHE STRING "" ${FORCE_CACHE}) 361endif() 362