1# This file is based off of the Platform/Darwin.cmake and Platform/UnixPaths.cmake 2# files which are included with CMake 2.8.4 3# It has been altered for iOS development 4 5# Options: 6# 7# IOS_PLATFORM = OS (default) or SIMULATOR 8# This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders 9# OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch. 10# SIMULATOR - used to build for the Simulator platforms, which now uses arm64 arch. 11# 12# CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder 13# By default this location is automatcially chosen based on the IOS_PLATFORM value above. 14# If set manually, it will override the default location and force the user of a particular Developer Platform 15# 16# CMAKE_IOS_SDK_ROOT = automatic(default) or /path/to/platform/Developer/SDKs/SDK folder 17# By default this location is automatcially chosen based on the CMAKE_IOS_DEVELOPER_ROOT value. 18# In this case it will always be the most up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path. 19# If set manually, this will force the use of a specific SDK version 20 21# Macros: 22# 23# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE) 24# A convenience macro for setting xcode specific properties on targets 25# example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1") 26# 27# find_host_package (PROGRAM ARGS) 28# A macro used to find executable programs on the host system, not within the iOS environment. 29# Thanks to the android-cmake project for providing the command 30 31# Standard settings 32set(CMAKE_SYSTEM_NAME Darwin) 33set(CMAKE_SYSTEM_VERSION 1) 34set(UNIX True) 35set(APPLE True) 36set(IOS True) 37 38# Required as of cmake 2.8.10 39set(CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE) 40 41# Determine the cmake host system version so we know where to find the iOS SDKs 42find_program(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin) 43if(CMAKE_UNAME) 44 execute_process(COMMAND uname -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE) 45 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}") 46endif(CMAKE_UNAME) 47 48# Force the compilers to gcc for iOS 49set(CMAKE_C_COMPILER /usr/bin/gcc CACHE STRING "") 50set(CMAKE_CXX_COMPILER /usr/bin/g++ CACHE STRING "") 51set(CMAKE_AR ar CACHE FILEPATH "" FORCE) 52set(CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE) 53set(PKG_CONFIG_EXECUTABLE pkg-config CACHE FILEPATH "" FORCE) 54 55# Setup iOS platform unless specified manually with IOS_PLATFORM 56if(NOT IOS_PLATFORM) 57 set(IOS_PLATFORM "OS") 58endif(NOT IOS_PLATFORM) 59set(IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform") 60 61# Check the platform selection and setup for developer root 62if(${IOS_PLATFORM} STREQUAL "OS") 63 set(IOS_PLATFORM_LOCATION "iPhoneOS.platform") 64 set(XCODE_IOS_PLATFORM iphoneos) 65 66 # This causes the installers to properly locate the output libraries 67 set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos") 68elseif(${IOS_PLATFORM} STREQUAL "SIMULATOR") 69 set(IOS_PLATFORM_LOCATION "iPhoneSimulator.platform") 70 set(XCODE_IOS_PLATFORM iphonesimulator) 71 72 # This causes the installers to properly locate the output libraries 73 set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator") 74elseif(${IOS_PLATFORM} STREQUAL "WATCHOS") 75 set(IOS_PLATFORM_LOCATION "WatchOS.platform") 76 set(XCODE_IOS_PLATFORM watchos) 77 78 # This causes the installers to properly locate the output libraries 79 set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchos") 80else(${IOS_PLATFORM} STREQUAL "OS") 81 message(FATAL_ERROR 82 "Unsupported IOS_PLATFORM value selected. " 83 "Please choose OS, SIMULATOR, or WATCHOS.") 84endif() 85 86# All iOS/Darwin specific settings - some may be redundant 87set(CMAKE_SHARED_LIBRARY_PREFIX "lib") 88set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") 89set(CMAKE_SHARED_MODULE_PREFIX "lib") 90set(CMAKE_SHARED_MODULE_SUFFIX ".so") 91set(CMAKE_MODULE_EXISTS 1) 92set(CMAKE_DL_LIBS "") 93 94set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ") 95set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ") 96set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") 97set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") 98 99if(IOS_DEPLOYMENT_TARGET) 100 set(XCODE_IOS_PLATFORM_VERSION_FLAGS "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}") 101endif() 102 103# Hidden visibilty is required for cxx on iOS 104set(CMAKE_C_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS}") 105set(CMAKE_CXX_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fvisibility-inlines-hidden") 106 107set(CMAKE_C_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}") 108set(CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}") 109 110set(CMAKE_PLATFORM_HAS_INSTALLNAME 1) 111set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -headerpad_max_install_names") 112set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -headerpad_max_install_names") 113set(CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,") 114set(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,") 115set(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a") 116 117# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree 118# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache 119# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun) 120# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex 121if(NOT CMAKE_INSTALL_NAME_TOOL) 122 find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool) 123endif(NOT CMAKE_INSTALL_NAME_TOOL) 124 125# Setup iOS deployment target 126set(IOS_DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET} CACHE STRING "Minimum iOS version") 127 128# Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT 129# Note Xcode 4.3 changed the installation location, choose the most recent one available 130execute_process( 131 COMMAND /usr/bin/xcode-select -print-path 132 OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR 133 OUTPUT_STRIP_TRAILING_WHITESPACE 134) 135set(XCODE_POST_43_ROOT "${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/${IOS_PLATFORM_LOCATION}/Developer") 136set(XCODE_PRE_43_ROOT "/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer") 137if(NOT CMAKE_IOS_DEVELOPER_ROOT) 138 if(EXISTS ${XCODE_POST_43_ROOT}) 139 set(CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT}) 140 elseif(EXISTS ${XCODE_PRE_43_ROOT}) 141 set(CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT}) 142 endif(EXISTS ${XCODE_POST_43_ROOT}) 143endif(NOT CMAKE_IOS_DEVELOPER_ROOT) 144set(CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform") 145 146# Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT 147if(NOT CMAKE_IOS_SDK_ROOT) 148 file(GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*") 149 if(_CMAKE_IOS_SDKS) 150 list(SORT _CMAKE_IOS_SDKS) 151 list(REVERSE _CMAKE_IOS_SDKS) 152 list(GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT) 153 else(_CMAKE_IOS_SDKS) 154 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.") 155 endif(_CMAKE_IOS_SDKS) 156 message(STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}") 157endif(NOT CMAKE_IOS_SDK_ROOT) 158set(CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Location of the selected iOS SDK") 159 160# Set the sysroot default to the most recent SDK 161set(CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support") 162 163# set the architecture for iOS 164if(IOS_PLATFORM STREQUAL "OS") 165 set(DEFAULT_IOS_ARCH "arm64") 166elseif(IOS_PLATFORM STREQUAL "SIMULATOR") 167 set(DEFAULT_IOS_ARCH "arm64") 168elseif(IOS_PLATFORM STREQUAL "WATCHOS") 169 set(DEFAULT_IOS_ARCH "armv7k;arm64_32") 170endif() 171 172set(IOS_ARCH ${DEFAULT_IOS_ARCH} CACHE STRING "Build architecture for iOS") 173set(CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING "Build architecture for iOS") 174 175# Set the find root to the iOS developer roots and to user defined paths 176set(CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_IOS_SDK_ROOT} ${CMAKE_PREFIX_PATH} CACHE STRING "iOS find search path root") 177 178# default to searching for frameworks first 179set(CMAKE_FIND_FRAMEWORK FIRST) 180 181# set up the default search directories for frameworks 182set(CMAKE_SYSTEM_FRAMEWORK_PATH 183 ${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks 184 ${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks 185 ${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks 186) 187 188# only search the iOS sdks, not the remainder of the host filesystem 189set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) 190set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 191set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 192 193# This little macro lets you set any XCode specific property 194macro(set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE) 195 set_property(TARGET ${TARGET} PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE}) 196endmacro(set_xcode_property) 197 198# This macro lets you find executable programs on the host system 199macro(find_host_package) 200 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 201 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER) 202 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER) 203 set(IOS FALSE) 204 205 find_package(${ARGN}) 206 207 set(IOS TRUE) 208 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) 209 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 210 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 211endmacro(find_host_package) 212