2017-03-15 19:43:10 +00:00
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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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#
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# Options:
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#
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# IOS_VERSION = last(default) or specific one (4.3, 5.0, 4.1)
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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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# IOS_PLATFORM = OS (default) or SIMULATOR or ALL
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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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IF(DEFINED CMAKE_CROSSCOMPILING)
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# subsequent toolchain loading is not really needed
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RETURN()
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ENDIF()
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# Standard settings
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SET(CMAKE_SYSTEM_NAME Darwin)
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SET(CMAKE_SYSTEM_VERSION 1) # TODO: determine target Darwin version
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SET(UNIX ON)
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SET(APPLE ON)
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SET(IOS ON)
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# Force the compilers to Clang for iOS
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include (CMakeForceCompiler)
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CMAKE_FORCE_C_COMPILER (clang Clang)
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CMAKE_FORCE_CXX_COMPILER (clang++ Clang)
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IF(CMAKE_CXX_COMPILER)
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EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} --version
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OUTPUT_VARIABLE CLANG_VERSION_RAW
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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STRING(REGEX REPLACE "Apple LLVM version ([\\.0-9]+).*"
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"\\1" CMAKE_CXX_COMPILER_VERSION "${CLANG_VERSION_RAW}")
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SET(CMAKE_C_COMPILER_VERSION ${CMAKE_CXX_COMPILER_VERSION})
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SET(CMAKE_COMPILER_VERSION ${CMAKE_CXX_COMPILER_VERSION})
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ENDIF()
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# Setup iOS platform
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IF(NOT DEFINED IOS_PLATFORM)
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SET(IOS_PLATFORM "OS")
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ENDIF()
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SET(IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")
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SET(IOS_PLATFORM_LOCATION "iPhoneOS.platform")
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SET(IOS_SIMULATOR_PLATFORM_LOCATION "iPhoneSimulator.platform")
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# Check the platform selection and setup for developer root
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if(${IOS_PLATFORM} STREQUAL "OS")
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")
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elseif(${IOS_PLATFORM} STREQUAL "SIMULATOR")
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")
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elseif(${IOS_PLATFORM} STREQUAL "ALL")
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# This causes the installers to properly locate the output libraries
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator;-iphoneos")
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else()
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message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS or SIMULATOR")
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endif()
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set (CMAKE_XCODE_EFFECTIVE_PLATFORMS ${CMAKE_XCODE_EFFECTIVE_PLATFORMS} CACHE PATH "iOS Platform")
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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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SET(XCODE_DEFAULT_ROOT "/Applications/Xcode.app/Contents")
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IF(NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
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IF(NOT DEFINED CMAKE_XCODE_ROOT)
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IF(EXISTS ${XCODE_DEFAULT_ROOT})
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SET(CMAKE_XCODE_ROOT ${XCODE_DEFAULT_ROOT} CACHE STRING "Xcode root")
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ELSE()
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MESSAGE(FATAL_ERROR "Xcode directory ${XCODE_DEFAULT_ROOT} doesn't exist")
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ENDIF()
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ENDIF()
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SET(TMP ${CMAKE_XCODE_ROOT}/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer)
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IF(EXISTS ${TMP})
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SET(CMAKE_IOS_DEVELOPER_ROOT ${TMP})
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MESSAGE(STATUS "Use iOS developer root: ${CMAKE_IOS_DEVELOPER_ROOT}")
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ENDIF()
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SET(TMP ${CMAKE_XCODE_ROOT}/Developer/Platforms/${IOS_SIMULATOR_PLATFORM_LOCATION}/Developer)
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IF(EXISTS ${TMP})
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SET(CMAKE_IOS_SIMULATOR_DEVELOPER_ROOT ${TMP})
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MESSAGE(STATUS "Use iOS simulator developer root: ${CMAKE_IOS_SIMULATOR_DEVELOPER_ROOT}")
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ENDIF()
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ENDIF()
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SET(CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")
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SET(CMAKE_IOS_SIMULATOR_DEVELOPER_ROOT ${CMAKE_IOS_SIMULATOR_DEVELOPER_ROOT} CACHE PATH "Location of iOS Simulator Platform")
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MACRO(GET_AVAILABLE_SDK_VERSIONS ROOT VERSIONS)
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FILE(GLOB _CMAKE_IOS_SDKS "${ROOT}/SDKs/iPhoneOS*")
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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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FOREACH(_CMAKE_IOS_SDK ${_CMAKE_IOS_SDKS})
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STRING(REGEX REPLACE ".+iPhoneOS([0-9.]+)\\.sdk" "\\1" _IOS_SDK "${_CMAKE_IOS_SDK}")
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LIST(APPEND ${VERSIONS} ${_IOS_SDK})
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ENDFOREACH()
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ENDIF()
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ENDMACRO()
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# Find and use the most recent iOS sdk
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IF(NOT DEFINED CMAKE_IOS_SDK_ROOT)
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# Search for a specific version of a SDK
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GET_AVAILABLE_SDK_VERSIONS(${CMAKE_IOS_DEVELOPER_ROOT} IOS_VERSIONS)
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IF(NOT IOS_VERSIONS)
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MESSAGE(FATAL_ERROR "No iOS SDK's found in default search path ${CMAKE_IOS_DEVELOPER_ROOT}. Manually set CMAKE_IOS_SDK_ROOT or install the iOS SDK.")
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ENDIF()
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IF(IOS_VERSION)
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LIST(FIND IOS_VERSIONS "${IOS_VERSION}" _INDEX)
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IF(_INDEX EQUAL -1)
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LIST(GET IOS_VERSIONS 0 IOS_SDK_VERSION)
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ELSE()
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SET(IOS_SDK_VERSION ${IOS_VERSION})
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ENDIF()
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ELSE()
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LIST(GET IOS_VERSIONS 0 IOS_VERSION)
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SET(IOS_SDK_VERSION ${IOS_VERSION})
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ENDIF()
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MESSAGE(STATUS "Target iOS ${IOS_VERSION} and use SDK ${IOS_SDK_VERSION}")
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SET(CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/iPhoneOS${IOS_SDK_VERSION}.sdk)
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SET(CMAKE_IOS_SIMULATOR_SDK_ROOT ${CMAKE_IOS_SIMULATOR_DEVELOPER_ROOT}/SDKs/iPhoneSimulator${IOS_SDK_VERSION}.sdk)
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endif()
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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(CMAKE_IOS_SIMULATOR_SDK_ROOT ${CMAKE_IOS_SIMULATOR_SDK_ROOT} CACHE PATH "Location of the selected iOS Simulator SDK")
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SET(IOS_VERSION ${IOS_VERSION} CACHE STRING "iOS target version")
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# Set the sysroot default to the most recent SDK
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SET(CMAKE_IOS_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support")
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SET(CMAKE_IOS_SIMULATOR_SYSROOT ${CMAKE_IOS_SIMULATOR_SDK_ROOT} CACHE PATH "Sysroot used for iOS Simulator support")
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IF(CMAKE_GENERATOR MATCHES Xcode)
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IF(${IOS_PLATFORM} STREQUAL "OS")
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SET(CMAKE_SYSTEM_PROCESSOR "armv7")
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ELSEIF(${IOS_PLATFORM} STREQUAL "SIMULATOR")
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SET(CMAKE_SYSTEM_PROCESSOR "x86")
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ELSEIF(${IOS_PLATFORM} STREQUAL "ALL")
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SET(CMAKE_SYSTEM_PROCESSOR "armv7")
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ENDIF()
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ELSE()
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IF(${IOS_PLATFORM} STREQUAL "OS")
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SET(ARCHS "armv7;arm64")
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SET(CMAKE_SYSTEM_PROCESSOR "armv7")
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ELSEIF(${IOS_PLATFORM} STREQUAL "SIMULATOR")
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# iPhone simulator targets i386
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SET(ARCHS "i386")
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SET(CMAKE_SYSTEM_PROCESSOR "x86")
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ELSEIF(${IOS_PLATFORM} STREQUAL "ALL")
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SET(ARCHS "armv7;arm64;i386;x86_64")
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SET(CMAKE_SYSTEM_PROCESSOR "armv7")
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ENDIF()
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ENDIF()
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# set the architecture for iOS - using ARCHS_STANDARD_32_BIT sets armv7,armv7s and appears to be XCode's standard.
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# The other value that works is ARCHS_UNIVERSAL_IPHONE_OS but that sets armv7 only
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IF(ARCHS)
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SET(CMAKE_OSX_ARCHITECTURES ${ARCHS} CACHE STRING "Build architecture for iOS")
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ENDIF()
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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} ${CMAKE_INSTALL_PREFIX} ${CMAKE_SOURCE_DIR}/external $ENV{EXTERNAL_IOS_PATH} CACHE STRING "iOS find search path root")
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# default to searching for frameworks first
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SET(CMAKE_FIND_FRAMEWORK FIRST)
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# set up the default search directories for frameworks
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SET(CMAKE_SYSTEM_FRAMEWORK_PATH
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${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 BOTH)
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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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# determinate location for bin utils based on CMAKE_FIND_ROOT_PATH
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include(CMakeFindBinUtils)
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