231 lines
10 KiB
CMake
231 lines
10 KiB
CMake
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# This file is based off of the Platform/Darwin.cmake and Platform/UnixPaths.cmake
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# files which are included with CMake 2.8.4
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# It has been altered for iOS development
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# Options:
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#
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# IOS_PLATFORM = OS (default) or SIMULATOR
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# This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders
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# OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch.
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# SIMULATOR - used to build for the Simulator platforms, which have an x86 arch.
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#
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# CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
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# By default this location is automatcially chosen based on the IOS_PLATFORM value above.
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# If set manually, it will override the default location and force the user of a particular Developer Platform
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#
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# CMAKE_IOS_SDK_ROOT = automatic(default) or /path/to/platform/Developer/SDKs/SDK folder
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# By default this location is automatcially chosen based on the CMAKE_IOS_DEVELOPER_ROOT value.
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# In this case it will always be the most up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path.
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# If set manually, this will force the use of a specific SDK version
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# Macros:
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#
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# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE)
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# A convenience macro for setting xcode specific properties on targets
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# example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1")
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#
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# find_host_package (PROGRAM ARGS)
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# A macro used to find executable programs on the host system, not within the iOS environment.
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# Thanks to the android-cmake project for providing the command
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# Standard settings
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set (CMAKE_SYSTEM_NAME Darwin)
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set (CMAKE_SYSTEM_VERSION 1)
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set (UNIX True)
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set (APPLE True)
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set (IOS True)
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# Required as of cmake 2.8.10
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set (CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE)
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# Determine the cmake host system version so we know where to find the iOS SDKs
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find_program (CMAKE_UNAME uname /bin /usr/bin /usr/local/bin)
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if (CMAKE_UNAME)
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exec_program(uname ARGS -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION)
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string (REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
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endif (CMAKE_UNAME)
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# Force the compilers to gcc for iOS
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set (CMAKE_C_COMPILER /usr/bin/gcc)
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set (CMAKE_CXX_COMPILER /usr/bin/g++)
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set(CMAKE_AR ar CACHE FILEPATH "" FORCE)
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set(CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE)
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set(PKG_CONFIG_EXECUTABLE pkg-config CACHE FILEPATH "" FORCE)
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# Setup iOS platform unless specified manually with IOS_PLATFORM
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if (NOT DEFINED IOS_PLATFORM)
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set (IOS_PLATFORM "OS")
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endif (NOT DEFINED IOS_PLATFORM)
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set (IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")
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# Check the platform selection and setup for developer root
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if (${IOS_PLATFORM} STREQUAL "OS")
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set (IOS_PLATFORM_LOCATION "iPhoneOS.platform")
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set (XCODE_IOS_PLATFORM iphoneos)
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")
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set (APPLE_IOS True)
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elseif (${IOS_PLATFORM} STREQUAL "SIMULATOR")
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set (SIMULATOR_FLAG true)
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set (IOS_PLATFORM_LOCATION "iPhoneSimulator.platform")
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set (XCODE_IOS_PLATFORM iphonesimulator)
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")
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set (APPLE_IOS True)
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elseif (${IOS_PLATFORM} STREQUAL "WATCHOS")
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set (IOS_PLATFORM_LOCATION "WatchOS.platform")
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set (XCODE_IOS_PLATFORM watchos)
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchos")
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set (APPLE_WATCH True)
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elseif (${IOS_PLATFORM} STREQUAL "WATCHSIMULATOR")
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set (SIMULATOR_FLAG true)
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set (IOS_PLATFORM_LOCATION "WatchSimulator.platform")
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set (XCODE_IOS_PLATFORM watchsimulator)
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchsimulator")
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set (APPLE_WATCH True)
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else (${IOS_PLATFORM} STREQUAL "OS")
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message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS, SIMULATOR, or WATCHOS.")
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endif ()
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# All iOS/Darwin specific settings - some may be redundant
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set (CMAKE_SHARED_LIBRARY_PREFIX "lib")
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set (CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
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set (CMAKE_SHARED_MODULE_PREFIX "lib")
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set (CMAKE_SHARED_MODULE_SUFFIX ".so")
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set (CMAKE_MODULE_EXISTS 1)
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set (CMAKE_DL_LIBS "")
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set (CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
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set (CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
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set (CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
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set (CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")
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if (IOS_DEPLOYMENT_TARGET)
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set (XCODE_IOS_PLATFORM_VERSION_FLAGS "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}")
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endif()
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set (CMAKE_SHARED_LINKER_FLAGS_INIT "-fapplication-extension")
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if (NOT SIMULATOR_FLAG)
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set (BITCODE "-fembed-bitcode")
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endif()
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set (CMAKE_C_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} ${BITCODE}")
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# Hidden visibilty is required for cxx on iOS
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set (CMAKE_CXX_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} ${BITCODE} -fvisibility-inlines-hidden")
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set (CMAKE_C_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
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set (CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")
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set (CMAKE_PLATFORM_HAS_INSTALLNAME 1)
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set (CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -headerpad_max_install_names")
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set (CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -headerpad_max_install_names")
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set (CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
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set (CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
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set (CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")
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# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
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# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
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# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
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# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
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if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
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find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool)
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endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
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# Setup iOS deployment target
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set (IOS_DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET} CACHE STRING "Minimum iOS version")
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# Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT
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# Note Xcode 4.3 changed the installation location, choose the most recent one available
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exec_program(/usr/bin/xcode-select ARGS -print-path OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR)
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set (XCODE_POST_43_ROOT "${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
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set (XCODE_PRE_43_ROOT "/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
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if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
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if (EXISTS ${XCODE_POST_43_ROOT})
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set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT})
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elseif(EXISTS ${XCODE_PRE_43_ROOT})
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set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT})
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endif (EXISTS ${XCODE_POST_43_ROOT})
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endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
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set (CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")
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# Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT
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if (NOT DEFINED CMAKE_IOS_SDK_ROOT)
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file (GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*")
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if (_CMAKE_IOS_SDKS)
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list (SORT _CMAKE_IOS_SDKS)
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list (REVERSE _CMAKE_IOS_SDKS)
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list (GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT)
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else (_CMAKE_IOS_SDKS)
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message (FATAL_ERROR "No iOS SDK's found in default search path ${CMAKE_IOS_DEVELOPER_ROOT}. Manually set CMAKE_IOS_SDK_ROOT or install the iOS SDK.")
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endif (_CMAKE_IOS_SDKS)
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message (STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}")
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endif (NOT DEFINED CMAKE_IOS_SDK_ROOT)
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set (CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Location of the selected iOS SDK")
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# Set the sysroot default to the most recent SDK
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set (CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support")
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# set the architecture for iOS
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if (IOS_PLATFORM STREQUAL "OS")
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set (IOS_ARCH "armv7;armv7s;arm64")
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set (IOS_ARCH "armv7;arm64")
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elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
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set (IOS_ARCH "i386;x86_64")
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elseif (IOS_PLATFORM STREQUAL "WATCHOS")
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set (IOS_ARCH "armv7k")
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elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
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set (IOS_ARCH "i386")
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else()
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message (WARNING "Unknown IOS_PLATFORM=<${IOS_PLATFORM}>")
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endif()
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message (STATUS ${IOS_ARCH})
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set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE string "Build architecture for iOS")
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# Set the find root to the iOS developer roots and to user defined paths
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set (CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_IOS_SDK_ROOT} ${CMAKE_PREFIX_PATH} CACHE string "iOS find search path root")
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# default to searching for frameworks first
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set (CMAKE_FIND_FRAMEWORK FIRST)
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# set up the default search directories for frameworks
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set (CMAKE_SYSTEM_FRAMEWORK_PATH
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${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks
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${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks
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${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks
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)
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# only search the iOS sdks, not the remainder of the host filesystem
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set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
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set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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# This little macro lets you set any XCode specific property
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macro (set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE)
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set_property (TARGET ${TARGET} PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE})
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endmacro (set_xcode_property)
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# This macro lets you find executable programs on the host system
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macro (find_host_package)
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set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER)
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set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
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set (IOS FALSE)
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find_package(${ARGN})
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set (IOS TRUE)
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set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
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set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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endmacro (find_host_package)
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