| # This file is part of the ios-cmake project. It was retrieved from |
| # https://github.com/cristeab/ios-cmake.git, which is a fork of |
| # https://code.google.com/p/ios-cmake/. Which in turn is based off of |
| # the Platform/Darwin.cmake and Platform/UnixPaths.cmake files which |
| # are included with CMake 2.8.4 |
| # |
| # The ios-cmake project is licensed under the new BSD license. |
| # |
| # Copyright (c) 2014, Bogdan Cristea and LTE Engineering Software, |
| # Kitware, Inc., Insight Software Consortium. All rights reserved. |
| |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| |
| # 1. Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # |
| # 2. Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # |
| # 3. Neither the name of the copyright holder nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| # POSSIBILITY OF SUCH DAMAGE. |
| # |
| # This file is based off of the Platform/Darwin.cmake and |
| # Platform/UnixPaths.cmake files which are included with CMake 2.8.4 |
| # It has been altered for iOS development. |
| # |
| # Updated by Alex Stewart (alexs.mac@gmail.com). |
| |
| # The following variables control the behaviour of this toolchain: |
| # |
| # IOS_PLATFORM: OS (default) or SIMULATOR or SIMULATOR64 |
| # OS = Build for iPhoneOS. |
| # SIMULATOR = Build for x86 i386 iPhone Simulator. |
| # SIMULATOR64 = Build for x86 x86_64 iPhone Simulator. |
| # CMAKE_OSX_SYSROOT: Path to the iOS SDK to use. By default this is |
| # automatically determined from IOS_PLATFORM and xcodebuild, but |
| # can also be manually specified (although this should not be required). |
| # CMAKE_IOS_DEVELOPER_ROOT: Path to the Developer directory for the iOS platform |
| # being compiled for. By default this is automatically determined from |
| # CMAKE_OSX_SYSROOT, but can also be manually specified (although this should |
| # not be required). |
| # |
| # This toolchain defines the following variables for use externally: |
| # |
| # XCODE_VERSION: Version number (not including Build version) of Xcode detected. |
| # IOS_SDK_VERSION: Version of iOS SDK being used. |
| # CMAKE_OSX_ARCHITECTURES: Architectures being compiled for (generated from |
| # IOS_PLATFORM). |
| # |
| # This toolchain defines the following macros for use externally: |
| # |
| # 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 used to find executable programs on the host system, not within the |
| # iOS environment. Thanks to the android-cmake project for providing the |
| # command. |
| |
| # Get the Xcode version being used. |
| execute_process(COMMAND xcodebuild -version |
| OUTPUT_VARIABLE XCODE_VERSION |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| string(REGEX MATCH "Xcode [0-9\\.]+" XCODE_VERSION "${XCODE_VERSION}") |
| string(REGEX REPLACE "Xcode ([0-9\\.]+)" "\\1" XCODE_VERSION "${XCODE_VERSION}") |
| message(STATUS "Building with Xcode version: ${XCODE_VERSION}") |
| |
| # Default to building for iPhoneOS if not specified otherwise, and we cannot |
| # determine the platform from the CMAKE_OSX_ARCHITECTURES variable. The use |
| # of CMAKE_OSX_ARCHITECTURES is such that try_compile() projects can correctly |
| # determine the value of IOS_PLATFORM from the root project, as |
| # CMAKE_OSX_ARCHITECTURES is propagated to them by CMake. |
| if (NOT DEFINED IOS_PLATFORM) |
| if (CMAKE_OSX_ARCHITECTURES) |
| if (CMAKE_OSX_ARCHITECTURES MATCHES ".*arm.*") |
| set(IOS_PLATFORM "OS") |
| elseif (CMAKE_OSX_ARCHITECTURES MATCHES "i386") |
| set(IOS_PLATFORM "SIMULATOR") |
| elseif (CMAKE_OSX_ARCHITECTURES MATCHES "x86_64") |
| set(IOS_PLATFORM "SIMULATOR64") |
| endif() |
| endif() |
| if (NOT IOS_PLATFORM) |
| set(IOS_PLATFORM "OS") |
| endif() |
| endif() |
| set(IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING |
| "Type of iOS platform for which to build.") |
| |
| # Determine the platform name and architectures for use in xcodebuild commands |
| # from the specified IOS_PLATFORM name. |
| if (IOS_PLATFORM STREQUAL "OS") |
| set(XCODE_IOS_PLATFORM iphoneos) |
| set(IOS_ARCH armv7 armv7s arm64) |
| elseif (IOS_PLATFORM STREQUAL "SIMULATOR") |
| set(XCODE_IOS_PLATFORM iphonesimulator) |
| set(IOS_ARCH i386) |
| elseif(IOS_PLATFORM STREQUAL "SIMULATOR64") |
| set(XCODE_IOS_PLATFORM iphonesimulator) |
| set(IOS_ARCH x86_64) |
| else() |
| message(FATAL_ERROR "Invalid IOS_PLATFORM: ${IOS_PLATFORM}") |
| endif() |
| message(STATUS "Configuring iOS build for platform: ${IOS_PLATFORM}, " |
| "architecture(s): ${IOS_ARCH}") |
| |
| # If user did not specify the SDK root to use, then query xcodebuild for it. |
| if (NOT CMAKE_OSX_SYSROOT) |
| execute_process(COMMAND xcodebuild -version -sdk ${XCODE_IOS_PLATFORM} Path |
| OUTPUT_VARIABLE CMAKE_OSX_SYSROOT |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "Using SDK: ${CMAKE_OSX_SYSROOT} for platform: ${IOS_PLATFORM}") |
| endif() |
| if (NOT EXISTS ${CMAKE_OSX_SYSROOT}) |
| message(FATAL_ERROR "Invalid CMAKE_OSX_SYSROOT: ${CMAKE_OSX_SYSROOT} " |
| "does not exist.") |
| endif() |
| # Get the SDK version information. |
| execute_process(COMMAND xcodebuild -sdk ${CMAKE_OSX_SYSROOT} -version SDKVersion |
| OUTPUT_VARIABLE IOS_SDK_VERSION |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| |
| # Find the Developer root for the specific iOS platform being compiled for |
| # from CMAKE_OSX_SYSROOT. Should be ../../ from SDK specified in |
| # CMAKE_OSX_SYSROOT. There does not appear to be a direct way to obtain |
| # this information from xcrun or xcodebuild. |
| if (NOT CMAKE_IOS_DEVELOPER_ROOT) |
| get_filename_component(IOS_PLATFORM_SDK_DIR ${CMAKE_OSX_SYSROOT} PATH) |
| get_filename_component(CMAKE_IOS_DEVELOPER_ROOT ${IOS_PLATFORM_SDK_DIR} PATH) |
| endif() |
| if (NOT EXISTS ${CMAKE_IOS_DEVELOPER_ROOT}) |
| message(FATAL_ERROR "Invalid CMAKE_IOS_DEVELOPER_ROOT: " |
| "${CMAKE_IOS_DEVELOPER_ROOT} does not exist.") |
| endif() |
| |
| # Find the C & C++ compilers for the specified SDK. |
| if (NOT CMAKE_C_COMPILER) |
| execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find clang |
| OUTPUT_VARIABLE CMAKE_C_COMPILER |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "Using C compiler: ${CMAKE_C_COMPILER}") |
| endif() |
| if (NOT CMAKE_CXX_COMPILER) |
| execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find clang++ |
| OUTPUT_VARIABLE CMAKE_CXX_COMPILER |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "Using CXX compiler: ${CMAKE_CXX_COMPILER}") |
| endif() |
| |
| # Find (Apple's) libtool. |
| execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find libtool |
| OUTPUT_VARIABLE IOS_LIBTOOL |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "Using libtool: ${IOS_LIBTOOL}") |
| # Configure libtool to be used instead of ar + ranlib to build static libraries. |
| # This is required on Xcode 7+, but should also work on previous versions of |
| # Xcode. |
| set(CMAKE_C_CREATE_STATIC_LIBRARY |
| "${IOS_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") |
| set(CMAKE_CXX_CREATE_STATIC_LIBRARY |
| "${IOS_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") |
| |
| # Get the version of Darwin (OS X) of the host. |
| execute_process(COMMAND uname -r |
| OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION |
| ERROR_QUIET |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| |
| # Standard settings. |
| set(CMAKE_SYSTEM_NAME Darwin) |
| set(CMAKE_SYSTEM_VERSION ${IOS_SDK_VERSION}) |
| set(UNIX TRUE) |
| set(APPLE TRUE) |
| set(IOS TRUE) |
| # Force unset of OS X-specific deployment target (otherwise autopopulated), |
| # required as of cmake 2.8.10. |
| set(CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING |
| "Must be empty for iOS builds." FORCE) |
| # Set the architectures for which to build. |
| set(CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING "Build architecture for iOS") |
| |
| # Skip the platform compiler checks for cross compiling. |
| set(CMAKE_CXX_COMPILER_FORCED TRUE) |
| set(CMAKE_CXX_COMPILER_WORKS TRUE) |
| set(CMAKE_C_COMPILER_FORCED TRUE) |
| set(CMAKE_C_COMPILER_WORKS TRUE) |
| |
| # All iOS/Darwin specific settings - some may be redundant. |
| set(CMAKE_SHARED_LIBRARY_PREFIX "lib") |
| set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") |
| set(CMAKE_SHARED_MODULE_PREFIX "lib") |
| set(CMAKE_SHARED_MODULE_SUFFIX ".so") |
| set(CMAKE_MODULE_EXISTS 1) |
| set(CMAKE_DL_LIBS "") |
| |
| set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ") |
| set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ") |
| set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") |
| set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") |
| |
| # Specify minimum version of deployment target. |
| # Unless specified, the latest SDK version is used by default. |
| set(IOS_DEPLOYMENT_TARGET "${IOS_SDK_VERSION}" |
| CACHE STRING "Minimum iOS version to build for." ) |
| message(STATUS "Building for minimum iOS version: ${IOS_DEPLOYMENT_TARGET}" |
| " (SDK version: ${IOS_SDK_VERSION})") |
| |
| # Note that only Xcode 7+ supports the newer more specific: |
| # -m${XCODE_IOS_PLATFORM}-version-min flags, older versions of Xcode use: |
| # -m(ios/ios-simulator)-version-min instead. |
| if (XCODE_VERSION VERSION_LESS 7.0) |
| if (IOS_PLATFORM STREQUAL "OS") |
| set(XCODE_IOS_PLATFORM_VERSION_FLAGS |
| "-mios-version-min=${IOS_DEPLOYMENT_TARGET}") |
| else() |
| # SIMULATOR or SIMULATOR64 both use -mios-simulator-version-min. |
| set(XCODE_IOS_PLATFORM_VERSION_FLAGS |
| "-mios-simulator-version-min=${IOS_DEPLOYMENT_TARGET}") |
| endif() |
| else() |
| # Xcode 7.0+ uses flags we can build directly from XCODE_IOS_PLATFORM. |
| set(XCODE_IOS_PLATFORM_VERSION_FLAGS |
| "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}") |
| endif() |
| |
| set(CMAKE_C_FLAGS |
| "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fobjc-abi-version=2 -fobjc-arc ${CMAKE_C_FLAGS}") |
| # Hidden visibilty is required for C++ on iOS. |
| set(CMAKE_CXX_FLAGS |
| "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden -fobjc-abi-version=2 -fobjc-arc ${CMAKE_CXX_FLAGS}") |
| set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG -O3 -fomit-frame-pointer -ffast-math ${CMAKE_CXX_FLAGS_RELEASE}") |
| |
| set(CMAKE_C_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}") |
| set(CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}") |
| |
| # In order to ensure that the updated compiler flags are used in try_compile() |
| # tests, we have to forcibly set them in the CMake cache, not merely set them |
| # in the local scope. |
| list(APPEND VARS_TO_FORCE_IN_CACHE |
| CMAKE_C_FLAGS |
| CMAKE_CXX_FLAGS |
| CMAKE_CXX_RELEASE |
| CMAKE_C_LINK_FLAGS |
| CMAKE_CXX_LINK_FLAGS) |
| foreach(VAR_TO_FORCE ${VARS_TO_FORCE_IN_CACHE}) |
| set(${VAR_TO_FORCE} "${${VAR_TO_FORCE}}" CACHE STRING "" FORCE) |
| endforeach() |
| |
| 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, Alex. |
| if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL) |
| find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool) |
| endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL) |
| |
| # Set the find root to the iOS developer roots and to user defined paths. |
| set(CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_OSX_SYSROOT} |
| ${CMAKE_PREFIX_PATH} CACHE string "iOS find search path root" FORCE) |
| |
| # 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_OSX_SYSROOT}/System/Library/Frameworks |
| ${CMAKE_OSX_SYSROOT}/System/Library/PrivateFrameworks |
| ${CMAKE_OSX_SYSROOT}/Developer/Library/Frameworks) |
| |
| # Only search the specified iOS SDK, 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) |