diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/ios.toolchain.cmake | 725 |
1 files changed, 725 insertions, 0 deletions
diff --git a/cmake/ios.toolchain.cmake b/cmake/ios.toolchain.cmake new file mode 100644 index 00000000..e81d87c8 --- /dev/null +++ b/cmake/ios.toolchain.cmake @@ -0,0 +1,725 @@ +# 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 ([email protected]) +# +# ***************************************************************************** +# Now maintained by Alexander Widerberg (widerbergaren [at] gmail.com) +# under the BSD-3-Clause license +# https://github.com/leetal/ios-cmake +# ***************************************************************************** +# +# INFORMATION / HELP +# +# The following arguments control the behaviour of this toolchain: +# +# PLATFORM: (default "OS") +# OS = Build for iPhoneOS. +# OS64 = Build for arm64 iphoneOS. +# OS64COMBINED = Build for arm64 x86_64 iphoneOS. Combined into FAT STATIC lib (supported on 3.14+ of CMakewith "-G Xcode" argument ONLY) +# SIMULATOR = Build for x86 i386 iphoneOS Simulator. +# SIMULATOR64 = Build for x86_64 iphoneOS Simulator. +# TVOS = Build for arm64 tvOS. +# TVOSCOMBINED = Build for arm64 x86_64 tvOS. Combined into FAT STATIC lib (supported on 3.14+ of CMake with "-G Xcode" argument ONLY) +# SIMULATOR_TVOS = Build for x86_64 tvOS Simulator. +# WATCHOS = Build for armv7k arm64_32 for watchOS. +# WATCHOSCOMBINED = Build for armv7k arm64_32 x86_64 watchOS. Combined into FAT STATIC lib (supported on 3.14+ of CMake with "-G Xcode" argument ONLY) +# SIMULATOR_WATCHOS = Build for x86_64 for watchOS Simulator. +# +# CMAKE_OSX_SYSROOT: Path to the SDK to use. By default this is +# automatically determined from PLATFORM and xcodebuild, but +# can also be manually specified (although this should not be required). +# +# CMAKE_DEVELOPER_ROOT: Path to the Developer directory for the 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). +# +# DEPLOYMENT_TARGET: Minimum SDK version to target. Default 2.0 on watchOS and 9.0 on tvOS+iOS +# +# ENABLE_BITCODE: (1|0) Enables or disables bitcode support. Default 1 (true) +# +# ENABLE_ARC: (1|0) Enables or disables ARC support. Default 1 (true, ARC enabled by default) +# +# ENABLE_VISIBILITY: (1|0) Enables or disables symbol visibility support. Default 0 (false, visibility hidden by default) +# +# ENABLE_STRICT_TRY_COMPILE: (1|0) Enables or disables strict try_compile() on all Check* directives (will run linker +# to actually check if linking is possible). Default 0 (false, will set CMAKE_TRY_COMPILE_TARGET_TYPE to STATIC_LIBRARY) +# +# ARCHS: (armv7 armv7s armv7k arm64 arm64_32 i386 x86_64) If specified, will override the default architectures for the given PLATFORM +# OS = armv7 armv7s arm64 (if applicable) +# OS64 = arm64 (if applicable) +# SIMULATOR = i386 +# SIMULATOR64 = x86_64 +# TVOS = arm64 +# SIMULATOR_TVOS = x86_64 (i386 has since long been deprecated) +# WATCHOS = armv7k arm64_32 (if applicable) +# SIMULATOR_WATCHOS = x86_64 (i386 has since long been deprecated) +# +# This toolchain defines the following variables for use externally: +# +# XCODE_VERSION: Version number (not including Build version) of Xcode detected. +# SDK_VERSION: Version of SDK being used. +# CMAKE_OSX_ARCHITECTURES: Architectures being compiled for (generated from PLATFORM). +# APPLE_TARGET_TRIPLE: Used by autoconf build systems. NOTE: If "ARCHS" are overridden, this will *NOT* be set! +# +# This toolchain defines the following macros for use externally: +# +# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE XCODE_VARIANT) +# A convenience macro for setting xcode specific properties on targets. +# Available variants are: All, Release, RelWithDebInfo, Debug, MinSizeRel +# example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1" "all"). +# +# find_host_package (PROGRAM ARGS) +# A macro used to find executable programs on the host system, not within the +# environment. Thanks to the android-cmake project for providing the +# command. +# +# ******************************** DEPRECATIONS ******************************* +# +# IOS_DEPLOYMENT_TARGET: (Deprecated) Alias to DEPLOYMENT_TARGET +# CMAKE_IOS_DEVELOPER_ROOT: (Deprecated) Alias to CMAKE_DEVELOPER_ROOT +# IOS_PLATFORM: (Deprecated) Alias to PLATFORM +# IOS_ARCH: (Deprecated) Alias to ARCHS +# +# ***************************************************************************** +# + +# Fix for PThread library not in path +set(CMAKE_THREAD_LIBS_INIT "-lpthread") +set(CMAKE_HAVE_THREADS_LIBRARY 1) +set(CMAKE_USE_WIN32_THREADS_INIT 0) +set(CMAKE_USE_PTHREADS_INIT 1) + +# Cache what generator is used +set(USED_CMAKE_GENERATOR "${CMAKE_GENERATOR}" CACHE STRING "Expose CMAKE_GENERATOR" FORCE) + +if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14") + set(MODERN_CMAKE YES) +endif() + +# 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}") + +######## ALIASES (DEPRECATION WARNINGS) + +if(DEFINED IOS_PLATFORM) + set(PLATFORM ${IOS_PLATFORM}) + message(DEPRECATION "IOS_PLATFORM argument is DEPRECATED. Consider using the new PLATFORM argument instead.") +endif() + +if(DEFINED IOS_DEPLOYMENT_TARGET) + set(DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET}) + message(DEPRECATION "IOS_DEPLOYMENT_TARGET argument is DEPRECATED. Consider using the new DEPLOYMENT_TARGET argument instead.") +endif() + +if(DEFINED CMAKE_IOS_DEVELOPER_ROOT) + set(CMAKE_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT}) + message(DEPRECATION "CMAKE_IOS_DEVELOPER_ROOT argument is DEPRECATED. Consider using the new CMAKE_DEVELOPER_ROOT argument instead.") +endif() + +if(DEFINED IOS_ARCH) + set(ARCHS ${IOS_ARCH}) + message(DEPRECATION "IOS_ARCH argument is DEPRECATED. Consider using the new ARCHS argument instead.") +endif() + +######## END ALIASES + +# Unset the FORCE on cache variables if in try_compile() +set(FORCE_CACHE FORCE) +get_property(_CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE) +if(_CMAKE_IN_TRY_COMPILE) + unset(FORCE_CACHE) +endif() + +# Default to building for iPhoneOS if not specified otherwise, and we cannot +# determine the platform from the CMAKE_OSX_ARCHITECTURES variable. The use +# of CMAKE_OSX_ARCHITECTURES is such that try_compile() projects can correctly +# determine the value of PLATFORM from the root project, as +# CMAKE_OSX_ARCHITECTURES is propagated to them by CMake. +if(NOT DEFINED PLATFORM) + if (CMAKE_OSX_ARCHITECTURES) + if(CMAKE_OSX_ARCHITECTURES MATCHES ".*arm.*" AND CMAKE_OSX_SYSROOT MATCHES ".*iphoneos.*") + set(PLATFORM "OS") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES "i386" AND CMAKE_OSX_SYSROOT MATCHES ".*iphonesimulator.*") + set(PLATFORM "SIMULATOR") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" AND CMAKE_OSX_SYSROOT MATCHES ".*iphonesimulator.*") + set(PLATFORM "SIMULATOR64") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES "arm64" AND CMAKE_OSX_SYSROOT MATCHES ".*appletvos.*") + set(PLATFORM "TVOS") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" AND CMAKE_OSX_SYSROOT MATCHES ".*appletvsimulator.*") + set(PLATFORM "SIMULATOR_TVOS") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES ".*armv7k.*" AND CMAKE_OSX_SYSROOT MATCHES ".*watchos.*") + set(PLATFORM "WATCHOS") + elseif(CMAKE_OSX_ARCHITECTURES MATCHES "i386" AND CMAKE_OSX_SYSROOT MATCHES ".*watchsimulator.*") + set(PLATFORM "SIMULATOR_WATCHOS") + endif() + endif() + if (NOT PLATFORM) + set(PLATFORM "OS") + endif() +endif() + +set(PLATFORM_INT "${PLATFORM}" CACHE STRING "Type of platform for which the build targets.") + +# Handle the case where we are targeting iOS and a version above 10.3.4 (32-bit support dropped officially) +if(PLATFORM_INT STREQUAL "OS" AND DEPLOYMENT_TARGET VERSION_GREATER_EQUAL 10.3.4) + set(PLATFORM_INT "OS64") + message(STATUS "Targeting minimum SDK version ${DEPLOYMENT_TARGET}. Dropping 32-bit support.") +elseif(PLATFORM_INT STREQUAL "SIMULATOR" AND DEPLOYMENT_TARGET VERSION_GREATER_EQUAL 10.3.4) + set(PLATFORM_INT "SIMULATOR64") + message(STATUS "Targeting minimum SDK version ${DEPLOYMENT_TARGET}. Dropping 32-bit support.") +endif() + +# Determine the platform name and architectures for use in xcodebuild commands +# from the specified PLATFORM name. +if(PLATFORM_INT STREQUAL "OS") + set(SDK_NAME iphoneos) + if(NOT ARCHS) + set(ARCHS armv7 armv7s arm64) + set(APPLE_TARGET_TRIPLE_INT arm-apple-ios) + endif() +elseif(PLATFORM_INT STREQUAL "OS64") + set(SDK_NAME iphoneos) + if(NOT ARCHS) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(ARCHS arm64) # Add arm64e when Apple have fixed the integration issues with it, libarclite_iphoneos.a is currently missung bitcode markers for example + else() + set(ARCHS arm64) + endif() + set(APPLE_TARGET_TRIPLE_INT aarch64-apple-ios) + endif() +elseif(PLATFORM_INT STREQUAL "OS64COMBINED") + set(SDK_NAME iphoneos) + if(MODERN_CMAKE) + if(NOT ARCHS) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(ARCHS arm64 x86_64) # Add arm64e when Apple have fixed the integration issues with it, libarclite_iphoneos.a is currently missung bitcode markers for example + else() + set(ARCHS arm64 x86_64) + endif() + set(APPLE_TARGET_TRIPLE_INT aarch64-x86_64-apple-ios) + endif() + else() + message(FATAL_ERROR "Please make sure that you are running CMake 3.14+ to make the OS64COMBINED setting work") + endif() +elseif(PLATFORM_INT STREQUAL "SIMULATOR") + set(SDK_NAME iphonesimulator) + if(NOT ARCHS) + set(ARCHS i386) + set(APPLE_TARGET_TRIPLE_INT i386-apple-ios) + endif() + message(DEPRECATION "SIMULATOR IS DEPRECATED. Consider using SIMULATOR64 instead.") +elseif(PLATFORM_INT STREQUAL "SIMULATOR64") + set(SDK_NAME iphonesimulator) + if(NOT ARCHS) + set(ARCHS x86_64) + set(APPLE_TARGET_TRIPLE_INT x86_64-apple-ios) + endif() +elseif(PLATFORM_INT STREQUAL "TVOS") + set(SDK_NAME appletvos) + if(NOT ARCHS) + set(ARCHS arm64) + set(APPLE_TARGET_TRIPLE_INT aarch64-apple-tvos) + endif() +elseif (PLATFORM_INT STREQUAL "TVOSCOMBINED") + set(SDK_NAME appletvos) + if(MODERN_CMAKE) + if(NOT ARCHS) + set(ARCHS arm64 x86_64) + set(APPLE_TARGET_TRIPLE_INT aarch64-x86_64-apple-tvos) + endif() + else() + message(FATAL_ERROR "Please make sure that you are running CMake 3.14+ to make the TVOSCOMBINED setting work") + endif() +elseif(PLATFORM_INT STREQUAL "SIMULATOR_TVOS") + set(SDK_NAME appletvsimulator) + if(NOT ARCHS) + set(ARCHS x86_64) + set(APPLE_TARGET_TRIPLE_INT x86_64-apple-tvos) + endif() +elseif(PLATFORM_INT STREQUAL "WATCHOS") + set(SDK_NAME watchos) + if(NOT ARCHS) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(ARCHS armv7k arm64_32) + set(APPLE_TARGET_TRIPLE_INT aarch64_32-apple-watchos) + else() + set(ARCHS armv7k) + set(APPLE_TARGET_TRIPLE_INT arm-apple-watchos) + endif() + endif() +elseif(PLATFORM_INT STREQUAL "WATCHOSCOMBINED") + set(SDK_NAME watchos) + if(MODERN_CMAKE) + if(NOT ARCHS) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(ARCHS armv7k arm64_32 i386) + set(APPLE_TARGET_TRIPLE_INT aarch64_32-i386-apple-watchos) + else() + set(ARCHS armv7k i386) + set(APPLE_TARGET_TRIPLE_INT arm-i386-apple-watchos) + endif() + endif() + else() + message(FATAL_ERROR "Please make sure that you are running CMake 3.14+ to make the WATCHOSCOMBINED setting work") + endif() +elseif(PLATFORM_INT STREQUAL "SIMULATOR_WATCHOS") + set(SDK_NAME watchsimulator) + if(NOT ARCHS) + set(ARCHS i386) + set(APPLE_TARGET_TRIPLE_INT i386-apple-watchos) + endif() +else() + message(FATAL_ERROR "Invalid PLATFORM: ${PLATFORM_INT}") +endif() + +if(MODERN_CMAKE AND PLATFORM_INT MATCHES ".*COMBINED" AND NOT USED_CMAKE_GENERATOR MATCHES "Xcode") + message(FATAL_ERROR "The COMBINED options only work with Xcode generator, -G Xcode") +endif() + +# If user did not specify the SDK root to use, then query xcodebuild for it. +execute_process(COMMAND xcodebuild -version -sdk ${SDK_NAME} Path + OUTPUT_VARIABLE CMAKE_OSX_SYSROOT_INT + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE) +if (NOT DEFINED CMAKE_OSX_SYSROOT_INT AND NOT DEFINED CMAKE_OSX_SYSROOT) + message(SEND_ERROR "Please make sure that Xcode is installed and that the toolchain" + "is pointing to the correct path. Please run:" + "sudo xcode-select -s /Applications/Xcode.app/Contents/Developer" + "and see if that fixes the problem for you.") + message(FATAL_ERROR "Invalid CMAKE_OSX_SYSROOT: ${CMAKE_OSX_SYSROOT} " + "does not exist.") +elseif(DEFINED CMAKE_OSX_SYSROOT_INT) + set(CMAKE_OSX_SYSROOT "${CMAKE_OSX_SYSROOT_INT}" CACHE INTERNAL "") +endif() + +# Set Xcode property for SDKROOT as well if Xcode generator is used +if(USED_CMAKE_GENERATOR MATCHES "Xcode") + set(CMAKE_OSX_SYSROOT "${SDK_NAME}" CACHE INTERNAL "") + if(NOT DEFINED CMAKE_XCODE_ATTRIBUTE_DEVELOPMENT_TEAM) + set(CMAKE_XCODE_ATTRIBUTE_DEVELOPMENT_TEAM "123456789A" CACHE INTERNAL "") + endif() +endif() + +# Specify minimum version of deployment target. +if(NOT DEFINED DEPLOYMENT_TARGET) + if (PLATFORM_INT STREQUAL "WATCHOS" OR PLATFORM_INT STREQUAL "SIMULATOR_WATCHOS") + # Unless specified, SDK version 2.0 is used by default as minimum target version (watchOS). + set(DEPLOYMENT_TARGET "2.0" + CACHE STRING "Minimum SDK version to build for." ) + else() + # Unless specified, SDK version 9.0 is used by default as minimum target version (iOS, tvOS). + set(DEPLOYMENT_TARGET "9.0" + CACHE STRING "Minimum SDK version to build for." ) + endif() + message(STATUS "Using the default min-version since DEPLOYMENT_TARGET not provided!") +endif() + +# Use bitcode or not +if(NOT DEFINED ENABLE_BITCODE AND NOT ARCHS MATCHES "((^|;|, )(i386|x86_64))+") + # Unless specified, enable bitcode support by default + message(STATUS "Enabling bitcode support by default. ENABLE_BITCODE not provided!") + set(ENABLE_BITCODE TRUE) +elseif(NOT DEFINED ENABLE_BITCODE) + message(STATUS "Disabling bitcode support by default on simulators. ENABLE_BITCODE not provided for override!") + set(ENABLE_BITCODE FALSE) +endif() +set(ENABLE_BITCODE_INT ${ENABLE_BITCODE} CACHE BOOL "Whether or not to enable bitcode" ${FORCE_CACHE}) +# Use ARC or not +if(NOT DEFINED ENABLE_ARC) + # Unless specified, enable ARC support by default + set(ENABLE_ARC TRUE) + message(STATUS "Enabling ARC support by default. ENABLE_ARC not provided!") +endif() +set(ENABLE_ARC_INT ${ENABLE_ARC} CACHE BOOL "Whether or not to enable ARC" ${FORCE_CACHE}) +# Use hidden visibility or not +if(NOT DEFINED ENABLE_VISIBILITY) + # Unless specified, disable symbols visibility by default + set(ENABLE_VISIBILITY FALSE) + message(STATUS "Hiding symbols visibility by default. ENABLE_VISIBILITY not provided!") +endif() +set(ENABLE_VISIBILITY_INT ${ENABLE_VISIBILITY} CACHE BOOL "Whether or not to hide symbols (-fvisibility=hidden)" ${FORCE_CACHE}) +# Set strict compiler checks or not +if(NOT DEFINED ENABLE_STRICT_TRY_COMPILE) + # Unless specified, disable strict try_compile() + set(ENABLE_STRICT_TRY_COMPILE FALSE) + message(STATUS "Using NON-strict compiler checks by default. ENABLE_STRICT_TRY_COMPILE not provided!") +endif() +set(ENABLE_STRICT_TRY_COMPILE_INT ${ENABLE_STRICT_TRY_COMPILE} CACHE BOOL "Whether or not to use strict compiler checks" ${FORCE_CACHE}) +# Get the SDK version information. +execute_process(COMMAND xcodebuild -sdk ${CMAKE_OSX_SYSROOT} -version SDKVersion + OUTPUT_VARIABLE 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 DEFINED CMAKE_DEVELOPER_ROOT AND NOT USED_CMAKE_GENERATOR MATCHES "Xcode") + get_filename_component(PLATFORM_SDK_DIR ${CMAKE_OSX_SYSROOT} PATH) + get_filename_component(CMAKE_DEVELOPER_ROOT ${PLATFORM_SDK_DIR} PATH) + if (NOT DEFINED CMAKE_DEVELOPER_ROOT) + message(FATAL_ERROR "Invalid CMAKE_DEVELOPER_ROOT: " + "${CMAKE_DEVELOPER_ROOT} does not exist.") + endif() +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 BUILD_LIBTOOL + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE) +message(STATUS "Using libtool: ${BUILD_LIBTOOL}") +# Configure libtool to be used instead of ar + ranlib to build static libraries. +# This is required on Xcode 7+, but should also work on previous versions of +# Xcode. +set(CMAKE_C_CREATE_STATIC_LIBRARY + "${BUILD_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") +set(CMAKE_CXX_CREATE_STATIC_LIBRARY + "${BUILD_LIBTOOL} -static -o <TARGET> <LINK_FLAGS> <OBJECTS> ") +# Find the toolchain's provided install_name_tool if none is found on the host +if(NOT CMAKE_INSTALL_NAME_TOOL) + execute_process(COMMAND xcrun -sdk ${CMAKE_OSX_SYSROOT} -find install_name_tool + OUTPUT_VARIABLE CMAKE_INSTALL_NAME_TOOL_INT + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE) + set(CMAKE_INSTALL_NAME_TOOL ${CMAKE_INSTALL_NAME_TOOL_INT} CACHE STRING "" ${FORCE_CACHE}) +endif() +# 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) +if(SDK_NAME MATCHES "iphone") + set(CMAKE_SYSTEM_NAME iOS CACHE INTERNAL "" ${FORCE_CACHE}) +endif() +# CMake 3.14+ support building for iOS, watchOS and tvOS out of the box. +if(MODERN_CMAKE) + if(SDK_NAME MATCHES "appletv") + set(CMAKE_SYSTEM_NAME tvOS CACHE INTERNAL "" ${FORCE_CACHE}) + elseif(SDK_NAME MATCHES "watch") + set(CMAKE_SYSTEM_NAME watchOS CACHE INTERNAL "" ${FORCE_CACHE}) + endif() + # Provide flags for a combined FAT library build on newer CMake versions + if(PLATFORM_INT MATCHES ".*COMBINED") + set(CMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH "NO" CACHE INTERNAL "" ${FORCE_CACHE}) + set(CMAKE_IOS_INSTALL_COMBINED YES CACHE INTERNAL "" ${FORCE_CACHE}) + message(STATUS "Will combine built (static) artifacts into FAT lib...") + endif() +elseif(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.10") + # Legacy code path prior to CMake 3.14 or fallback if no SDK_NAME specified + set(CMAKE_SYSTEM_NAME iOS CACHE INTERNAL "" ${FORCE_CACHE}) +else() + # Legacy code path prior to CMake 3.14 or fallback if no SDK_NAME specified + set(CMAKE_SYSTEM_NAME Darwin CACHE INTERNAL "" ${FORCE_CACHE}) +endif() +# Standard settings. +set(CMAKE_SYSTEM_VERSION ${SDK_VERSION} CACHE INTERNAL "") +set(UNIX TRUE CACHE BOOL "") +set(APPLE TRUE CACHE BOOL "") +set(IOS TRUE CACHE BOOL "") +set(CMAKE_AR ar CACHE FILEPATH "" FORCE) +set(CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE) +set(CMAKE_STRIP strip CACHE FILEPATH "" FORCE) +# Set the architectures for which to build. +set(CMAKE_OSX_ARCHITECTURES ${ARCHS} CACHE STRING "Build architecture for iOS") +# Change the type of target generated for try_compile() so it'll work when cross-compiling, weak compiler checks +if(ENABLE_STRICT_TRY_COMPILE_INT) + message(STATUS "Using strict compiler checks (default in CMake).") +else() + set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) +endif() +# All iOS/Darwin specific settings - some may be redundant. +set(CMAKE_MACOSX_BUNDLE YES) +set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO") +set(CMAKE_SHARED_LIBRARY_PREFIX "lib") +set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") +set(CMAKE_SHARED_MODULE_PREFIX "lib") +set(CMAKE_SHARED_MODULE_SUFFIX ".so") +set(CMAKE_C_COMPILER_ABI ELF) +set(CMAKE_CXX_COMPILER_ABI ELF) +set(CMAKE_C_HAS_ISYSROOT 1) +set(CMAKE_CXX_HAS_ISYSROOT 1) +set(CMAKE_MODULE_EXISTS 1) +set(CMAKE_DL_LIBS "") +set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ") +set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ") +set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") +set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") + +if(ARCHS MATCHES "((^|;|, )(arm64|arm64e|x86_64))+") + set(CMAKE_C_SIZEOF_DATA_PTR 8) + set(CMAKE_CXX_SIZEOF_DATA_PTR 8) + if(ARCHS MATCHES "((^|;|, )(arm64|arm64e))+") + set(CMAKE_SYSTEM_PROCESSOR "aarch64") + else() + set(CMAKE_SYSTEM_PROCESSOR "x86_64") + endif() +else() + set(CMAKE_C_SIZEOF_DATA_PTR 4) + set(CMAKE_CXX_SIZEOF_DATA_PTR 4) + set(CMAKE_SYSTEM_PROCESSOR "arm") +endif() + +# Note that only Xcode 7+ supports the newer more specific: +# -m${SDK_NAME}-version-min flags, older versions of Xcode use: +# -m(ios/ios-simulator)-version-min instead. +if(${CMAKE_VERSION} VERSION_LESS "3.11") + if(PLATFORM_INT STREQUAL "OS" OR PLATFORM_INT STREQUAL "OS64") + if(XCODE_VERSION VERSION_LESS 7.0) + set(SDK_NAME_VERSION_FLAGS + "-mios-version-min=${DEPLOYMENT_TARGET}") + else() + # Xcode 7.0+ uses flags we can build directly from SDK_NAME. + set(SDK_NAME_VERSION_FLAGS + "-m${SDK_NAME}-version-min=${DEPLOYMENT_TARGET}") + endif() + elseif(PLATFORM_INT STREQUAL "TVOS") + set(SDK_NAME_VERSION_FLAGS + "-mtvos-version-min=${DEPLOYMENT_TARGET}") + elseif(PLATFORM_INT STREQUAL "SIMULATOR_TVOS") + set(SDK_NAME_VERSION_FLAGS + "-mtvos-simulator-version-min=${DEPLOYMENT_TARGET}") + elseif(PLATFORM_INT STREQUAL "WATCHOS") + set(SDK_NAME_VERSION_FLAGS + "-mwatchos-version-min=${DEPLOYMENT_TARGET}") + elseif(PLATFORM_INT STREQUAL "SIMULATOR_WATCHOS") + set(SDK_NAME_VERSION_FLAGS + "-mwatchos-simulator-version-min=${DEPLOYMENT_TARGET}") + else() + # SIMULATOR or SIMULATOR64 both use -mios-simulator-version-min. + set(SDK_NAME_VERSION_FLAGS + "-mios-simulator-version-min=${DEPLOYMENT_TARGET}") + endif() +else() + # Newer versions of CMake sets the version min flags correctly + set(CMAKE_OSX_DEPLOYMENT_TARGET ${DEPLOYMENT_TARGET} CACHE STRING + "Set CMake deployment target" ${FORCE_CACHE}) +endif() + +if(DEFINED APPLE_TARGET_TRIPLE_INT) + set(APPLE_TARGET_TRIPLE ${APPLE_TARGET_TRIPLE_INT} CACHE STRING + "Autoconf target triple compatible variable" ${FORCE_CACHE}) +endif() + +if(ENABLE_BITCODE_INT) + set(BITCODE "-fembed-bitcode") + set(CMAKE_XCODE_ATTRIBUTE_BITCODE_GENERATION_MODE "bitcode" CACHE INTERNAL "") + set(CMAKE_XCODE_ATTRIBUTE_ENABLE_BITCODE "YES" CACHE INTERNAL "") +else() + set(BITCODE "") + set(CMAKE_XCODE_ATTRIBUTE_ENABLE_BITCODE "NO" CACHE INTERNAL "") +endif() + +if(ENABLE_ARC_INT) + set(FOBJC_ARC "-fobjc-arc") + set(CMAKE_XCODE_ATTRIBUTE_CLANG_ENABLE_OBJC_ARC "YES" CACHE INTERNAL "") +else() + set(FOBJC_ARC "-fno-objc-arc") + set(CMAKE_XCODE_ATTRIBUTE_CLANG_ENABLE_OBJC_ARC "NO" CACHE INTERNAL "") +endif() + +if(NOT ENABLE_VISIBILITY_INT) + set(VISIBILITY "-fvisibility=hidden") + set(CMAKE_XCODE_ATTRIBUTE_GCC_SYMBOLS_PRIVATE_EXTERN "YES" CACHE INTERNAL "") +else() + set(VISIBILITY "") + set(CMAKE_XCODE_ATTRIBUTE_GCC_SYMBOLS_PRIVATE_EXTERN "NO" CACHE INTERNAL "") +endif() + +if(NOT IOS_TOOLCHAIN_HAS_RUN) + #Check if Xcode generator is used, since that will handle these flags automagically + if(USED_CMAKE_GENERATOR MATCHES "Xcode") + message(STATUS "Not setting any manual command-line buildflags, since Xcode is selected as generator.") + else() + set(CMAKE_C_FLAGS + "${SDK_NAME_VERSION_FLAGS} ${BITCODE} -fobjc-abi-version=2 ${FOBJC_ARC} ${CMAKE_C_FLAGS}") + # Hidden visibilty is required for C++ on iOS. + set(CMAKE_CXX_FLAGS + "${SDK_NAME_VERSION_FLAGS} ${BITCODE} ${VISIBILITY} -fvisibility-inlines-hidden -fobjc-abi-version=2 ${FOBJC_ARC} ${CMAKE_CXX_FLAGS}") + set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS} -O0 -g ${CMAKE_CXX_FLAGS_DEBUG}") + set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS} -DNDEBUG -Os -ffast-math ${CMAKE_CXX_FLAGS_MINSIZEREL}") + set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS} -DNDEBUG -O2 -g -ffast-math ${CMAKE_CXX_FLAGS_RELWITHDEBINFO}") + set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -DNDEBUG -O3 -ffast-math ${CMAKE_CXX_FLAGS_RELEASE}") + set(CMAKE_C_LINK_FLAGS "${SDK_NAME_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}") + set(CMAKE_CXX_LINK_FLAGS "${SDK_NAME_VERSION_FLAGS} -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}") + set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp") + + # 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. + set(VARS_TO_FORCE_IN_CACHE + CMAKE_C_FLAGS + CMAKE_CXX_FLAGS + CMAKE_CXX_FLAGS_DEBUG + CMAKE_CXX_FLAGS_RELWITHDEBINFO + CMAKE_CXX_FLAGS_MINSIZEREL + CMAKE_CXX_FLAGS_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_CACHE}) + endforeach() + endif() + + ## Print status messages to inform of the current state + message(STATUS "Configuring ${SDK_NAME} build for platform: ${PLATFORM_INT}, architecture(s): ${ARCHS}") + message(STATUS "Using SDK: ${CMAKE_OSX_SYSROOT_INT}") + if(DEFINED APPLE_TARGET_TRIPLE) + message(STATUS "Autoconf target triple: ${APPLE_TARGET_TRIPLE}") + endif() + message(STATUS "Using minimum deployment version: ${DEPLOYMENT_TARGET}" + " (SDK version: ${SDK_VERSION})") + if(MODERN_CMAKE) + message(STATUS "Merging integrated CMake 3.14+ iOS,tvOS,watchOS,macOS toolchain(s) with this toolchain!") + endif() + if(USED_CMAKE_GENERATOR MATCHES "Xcode") + message(STATUS "Using Xcode version: ${XCODE_VERSION}") + endif() + if(DEFINED SDK_NAME_VERSION_FLAGS) + message(STATUS "Using version flags: ${SDK_NAME_VERSION_FLAGS}") + endif() + message(STATUS "Using a data_ptr size of: ${CMAKE_CXX_SIZEOF_DATA_PTR}") + message(STATUS "Using install_name_tool: ${CMAKE_INSTALL_NAME_TOOL}") + if(ENABLE_BITCODE_INT) + message(STATUS "Enabling bitcode support.") + else() + message(STATUS "Disabling bitcode support.") + endif() + + if(ENABLE_ARC_INT) + message(STATUS "Enabling ARC support.") + else() + message(STATUS "Disabling ARC support.") + endif() + + if(NOT ENABLE_VISIBILITY_INT) + message(STATUS "Hiding symbols (-fvisibility=hidden).") + endif() +endif() + +set(CMAKE_PLATFORM_HAS_INSTALLNAME 1) +set(CMAKE_SHARED_LINKER_FLAGS "-rpath @executable_path/Frameworks -rpath @loader_path/Frameworks") +set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names") +set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -Wl,-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 ".tbd" ".dylib" ".so" ".a") +set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-install_name") + +# Set the find root to the iOS developer roots and to user defined paths. +set(CMAKE_FIND_ROOT_PATH ${CMAKE_OSX_SYSROOT_INT} ${CMAKE_PREFIX_PATH} CACHE STRING "Root path that will be prepended + to all search paths") +# Default to searching for frameworks first. +set(CMAKE_FIND_FRAMEWORK FIRST) +# Set up the default search directories for frameworks. +set(CMAKE_FRAMEWORK_PATH + ${CMAKE_DEVELOPER_ROOT}/Library/PrivateFrameworks + ${CMAKE_OSX_SYSROOT_INT}/System/Library/Frameworks + ${CMAKE_FRAMEWORK_PATH} CACHE STRING "Frameworks search paths" ${FORCE_CACHE}) + +set(IOS_TOOLCHAIN_HAS_RUN TRUE CACHE BOOL "Has the CMake toolchain run already?" ${FORCE_CACHE}) + +# By default, search both the specified iOS SDK and the remainder of the host filesystem. +if(NOT CMAKE_FIND_ROOT_PATH_MODE_PROGRAM) + set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH CACHE STRING "" ${FORCE_CACHE}) +endif() +if(NOT CMAKE_FIND_ROOT_PATH_MODE_LIBRARY) + set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH CACHE STRING "" ${FORCE_CACHE}) +endif() +if(NOT CMAKE_FIND_ROOT_PATH_MODE_INCLUDE) + set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH CACHE STRING "" ${FORCE_CACHE}) +endif() +if(NOT CMAKE_FIND_ROOT_PATH_MODE_PACKAGE) + set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE BOTH CACHE STRING "" ${FORCE_CACHE}) +endif() + +# +# Some helper-macros below to simplify and beautify the CMakeFile +# + +# This little macro lets you set any Xcode specific property. +macro(set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE XCODE_RELVERSION) + set(XCODE_RELVERSION_I "${XCODE_RELVERSION}") + if(XCODE_RELVERSION_I STREQUAL "All") + set_property(TARGET ${TARGET} PROPERTY + XCODE_ATTRIBUTE_${XCODE_PROPERTY} "${XCODE_VALUE}") + else() + set_property(TARGET ${TARGET} PROPERTY + XCODE_ATTRIBUTE_${XCODE_PROPERTY}[variant=${XCODE_RELVERSION_I}] "${XCODE_VALUE}") + endif() +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(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE NEVER) + set(IOS FALSE) + find_package(${ARGN}) + set(IOS TRUE) + set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH) + set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH) + set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH) + set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE BOTH) +endmacro(find_host_package) |