# iOS.cmake | |
# | |
# Copyright 2014-2015 by | |
# David Turner, Robert Wilhelm, and Werner Lemberg. | |
# | |
# Written by David Wimsey <david@wimsey.us> | |
# | |
# This file is part of the FreeType project, and may only be used, modified, | |
# and distributed under the terms of the FreeType project license, | |
# LICENSE.TXT. By continuing to use, modify, or distribute this file you | |
# indicate that you have read the license and understand and accept it | |
# fully. | |
# | |
# | |
# This file is derived from the files `Platform/Darwin.cmake' and | |
# `Platform/UnixPaths.cmake', which are part of CMake 2.8.4. It has been | |
# altered for iOS development. | |
# Options | |
# ------- | |
# | |
# IOS_PLATFORM = OS | SIMULATOR | |
# | |
# This decides whether SDKS are selected from the `iPhoneOS.platform' or | |
# `iPhoneSimulator.platform' folders. | |
# | |
# OS - the default, used to build for iPhone and iPad physical devices, | |
# which have an ARM architecture. | |
# SIMULATOR - used to build for the Simulator platforms, which have an | |
# x86 architecture. | |
# | |
# CMAKE_IOS_DEVELOPER_ROOT = /path/to/platform/Developer folder | |
# | |
# By default, this location is automatically chosen based on the | |
# IOS_PLATFORM value above. If you manually set this variable, it | |
# overrides the default location and forces the use of a particular | |
# Developer Platform. | |
# | |
# CMAKE_IOS_SDK_ROOT = /path/to/platform/Developer/SDKs/SDK folder | |
# | |
# By default, this location is automatically chosen based on the | |
# CMAKE_IOS_DEVELOPER_ROOT value. In this case it is always the most | |
# up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path. If you | |
# manually set this variable, it forces the use of a specific SDK | |
# version. | |
# | |
# | |
# Macros | |
# ------ | |
# | |
# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE) | |
# | |
# A convenience macro for setting Xcode specific properties on targets. | |
# | |
# Example: | |
# | |
# set_xcode_property(myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1") | |
# | |
# find_host_package (PROGRAM ARGS) | |
# | |
# A macro to find executable programs on the host system, not within the | |
# iOS environment. Thanks to the `android-cmake' project for providing | |
# the command. | |
# standard settings | |
set(CMAKE_SYSTEM_NAME Darwin) | |
set(CMAKE_SYSTEM_VERSION 1) | |
set(UNIX True) | |
set(APPLE True) | |
set(IOS True) | |
# required as of cmake 2.8.10 | |
set(CMAKE_OSX_DEPLOYMENT_TARGET "" | |
CACHE STRING "Force unset of the deployment target for iOS" FORCE | |
) | |
# determine the cmake host system version so we know where to find the iOS | |
# SDKs | |
find_program(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin) | |
if (CMAKE_UNAME) | |
exec_program(uname ARGS -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION) | |
string(REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" | |
DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}") | |
endif (CMAKE_UNAME) | |
# force the compilers to gcc for iOS | |
include(CMakeForceCompiler) | |
CMAKE_FORCE_C_COMPILER(gcc gcc) | |
CMAKE_FORCE_CXX_COMPILER(g++ g++) | |
# skip the platform compiler checks for cross compiling | |
set(CMAKE_CXX_COMPILER_WORKS TRUE) | |
set(CMAKE_C_COMPILER_WORKS TRUE) | |
# all iOS/Darwin specific settings - some may be redundant | |
set(CMAKE_SHARED_LIBRARY_PREFIX "lib") | |
set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") | |
set(CMAKE_SHARED_MODULE_PREFIX "lib") | |
set(CMAKE_SHARED_MODULE_SUFFIX ".so") | |
set(CMAKE_MODULE_EXISTS 1) | |
set(CMAKE_DL_LIBS "") | |
set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG | |
"-compatibility_version ") | |
set(CMAKE_C_OSX_CURRENT_VERSION_FLAG | |
"-current_version ") | |
set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG | |
"${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") | |
set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG | |
"${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") | |
# hidden visibility is required for cxx on iOS | |
set(CMAKE_C_FLAGS_INIT "") | |
set(CMAKE_CXX_FLAGS_INIT | |
"-headerpad_max_install_names -fvisibility=hidden -fvisibility-inlines-hidden") | |
set(CMAKE_C_LINK_FLAGS | |
"-Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}") | |
set(CMAKE_CXX_LINK_FLAGS | |
"-Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}") | |
set(CMAKE_PLATFORM_HAS_INSTALLNAME 1) | |
set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS | |
"-dynamiclib -headerpad_max_install_names") | |
set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS | |
"-bundle -headerpad_max_install_names") | |
set(CMAKE_SHARED_MODULE_LOADER_C_FLAG | |
"-Wl,-bundle_loader,") | |
set(CMAKE_SHARED_MODULE_LOADER_CXX_FLAG | |
"-Wl,-bundle_loader,") | |
set(CMAKE_FIND_LIBRARY_SUFFIXES | |
".dylib" ".so" ".a") | |
# hack: If a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old | |
# build tree (where `install_name_tool' was hardcoded), and where | |
# CMAKE_INSTALL_NAME_TOOL isn't in the cache and still cmake didn't | |
# fail in `CMakeFindBinUtils.cmake' (because it isn't rerun), hardcode | |
# CMAKE_INSTALL_NAME_TOOL here to `install_name_tool' so it behaves as | |
# it did before. | |
if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL) | |
find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool) | |
endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL) | |
# set up iOS platform unless specified manually with IOS_PLATFORM | |
if (NOT DEFINED IOS_PLATFORM) | |
set(IOS_PLATFORM "OS") | |
endif (NOT DEFINED IOS_PLATFORM) | |
set(IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform") | |
# check the platform selection and setup for developer root | |
if (${IOS_PLATFORM} STREQUAL "OS") | |
set(IOS_PLATFORM_LOCATION "iPhoneOS.platform") | |
# this causes the installers to properly locate the output libraries | |
set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos") | |
elseif (${IOS_PLATFORM} STREQUAL "SIMULATOR") | |
set(IOS_PLATFORM_LOCATION "iPhoneSimulator.platform") | |
# this causes the installers to properly locate the output libraries | |
set(CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator") | |
else (${IOS_PLATFORM} STREQUAL "OS") | |
message(FATAL_ERROR | |
"Unsupported IOS_PLATFORM value selected. Please choose OS or SIMULATOR.") | |
endif (${IOS_PLATFORM} STREQUAL "OS") | |
# set up iOS developer location unless specified manually with | |
# CMAKE_IOS_DEVELOPER_ROOT -- | |
# note that Xcode 4.3 changed the installation location; choose the most | |
# recent one available | |
set(XCODE_POST_43_ROOT | |
"/Applications/Xcode.app/Contents/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer") | |
set(XCODE_PRE_43_ROOT | |
"/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer") | |
if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT) | |
if (EXISTS ${XCODE_POST_43_ROOT}) | |
set(CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT}) | |
elseif (EXISTS ${XCODE_PRE_43_ROOT}) | |
set(CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT}) | |
endif (EXISTS ${XCODE_POST_43_ROOT}) | |
endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT) | |
set(CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} | |
CACHE PATH "Location of iOS Platform" | |
) | |
# find and use the most recent iOS SDK unless specified manually with | |
# CMAKE_IOS_SDK_ROOT | |
if (NOT DEFINED CMAKE_IOS_SDK_ROOT) | |
file(GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*") | |
if (_CMAKE_IOS_SDKS) | |
list(SORT _CMAKE_IOS_SDKS) | |
list(REVERSE _CMAKE_IOS_SDKS) | |
list(GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT) | |
else (_CMAKE_IOS_SDKS) | |
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.") | |
endif (_CMAKE_IOS_SDKS) | |
message(STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}") | |
endif (NOT DEFINED CMAKE_IOS_SDK_ROOT) | |
set(CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} | |
CACHE PATH "Location of the selected iOS SDK" | |
) | |
# set the sysroot default to the most recent SDK | |
set(CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} | |
CACHE PATH "Sysroot used for iOS support" | |
) | |
# set the architecture for iOS -- | |
# note that currently both ARCHS_STANDARD_32_BIT and | |
# ARCHS_UNIVERSAL_IPHONE_OS set armv7 only, so set both manually | |
if (${IOS_PLATFORM} STREQUAL "OS") | |
set(IOS_ARCH $(ARCHS_STANDARD_32_64_BIT)) | |
else (${IOS_PLATFORM} STREQUAL "OS") | |
set(IOS_ARCH i386) | |
endif (${IOS_PLATFORM} STREQUAL "OS") | |
set(CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} | |
CACHE string "Build architecture for iOS" | |
) | |
# set the find root to the iOS developer roots and to user defined paths | |
set(CMAKE_FIND_ROOT_PATH | |
${CMAKE_IOS_DEVELOPER_ROOT} | |
${CMAKE_IOS_SDK_ROOT} | |
${CMAKE_PREFIX_PATH} | |
CACHE string "iOS find search path root" | |
) | |
# default to searching for frameworks first | |
set(CMAKE_FIND_FRAMEWORK FIRST) | |
# set up the default search directories for frameworks | |
set(CMAKE_SYSTEM_FRAMEWORK_PATH | |
${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks | |
${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks | |
${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks | |
) | |
# only search the iOS SDKs, not the remainder of the host filesystem | |
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) | |
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) | |
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) | |
# this little macro lets you set any Xcode specific property | |
macro(set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE) | |
set_property(TARGET ${TARGET} | |
PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE}) | |
endmacro(set_xcode_property) | |
# this macro lets you find executable programs on the host system | |
macro(find_host_package) | |
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) | |
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER) | |
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER) | |
set(IOS FALSE) | |
find_package(${ARGN}) | |
set(IOS TRUE) | |
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) | |
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) | |
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) | |
endmacro(find_host_package) | |
# eof |