diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml index 06cc7758f..caee4ff60 100644 --- a/.github/workflows/c-cpp.yml +++ b/.github/workflows/c-cpp.yml @@ -68,8 +68,12 @@ jobs: submodules: true - name: Compile a universal OpenMP (macOS) - run: export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1; brew reinstall --build-from-source --formula ./shell/apple/libomp.rb - if: runner.os == 'macOS' + run: HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew reinstall --build-from-source --formula ./shell/apple/libomp.rb + if: matrix.config.name == 'apple-darwin' + + - name: Compile OpenMP.xcframework (iOS) + run: ./shell/apple/emulator-ios/OpenMP/build_ios_openmp.sh --disableSimulator + if: matrix.config.name == 'apple-ios' - uses: actions/cache@v3 with: diff --git a/.gitignore b/.gitignore index 30b546d1d..2bb067773 100644 --- a/.gitignore +++ b/.gitignore @@ -2,6 +2,7 @@ build/ # macOS .DS_Store +shell/apple/emulator-ios/OpenMP/OpenMP.xcframework # Visual Studio .vs/ diff --git a/CMakeLists.txt b/CMakeLists.txt index 80a0f67bf..87bc60549 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -301,6 +301,22 @@ if(USE_OPENMP) target_link_libraries(${PROJECT_NAME} PRIVATE OpenMP::OpenMP_CXX) endif() endif() + if(IOS) + message("-- Finding OpenMP.xcframework for iOS") + set(OPENMP_XCFRAMEWORK "${CMAKE_CURRENT_SOURCE_DIR}/shell/apple/emulator-ios/OpenMP/OpenMP.xcframework") + if(IS_DIRECTORY ${OPENMP_XCFRAMEWORK}) + # CMake does not support linking xcframework directly atm. (see https://gitlab.kitware.com/cmake/cmake/-/issues/21752) + set(OPENMP_FRAMEWORK ${OPENMP_XCFRAMEWORK}/ios-arm64_arm64e/OpenMP.framework/Versions/A/libomp.a) + if(EXISTS ${OPENMP_FRAMEWORK}) + message("-- Found OpenMP.xcframework: ${OPENMP_FRAMEWORK} (Linking static library before CMake support linking xcframework)") + target_link_libraries(${PROJECT_NAME} PRIVATE ${OPENMP_FRAMEWORK}) + target_include_directories(${PROJECT_NAME} PRIVATE ${OPENMP_XCFRAMEWORK}/ios-arm64_arm64e/OpenMP.framework/Versions/A/Headers) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Xclang -fopenmp") + endif() + else() + message("-- Could NOT find OpenMP.xcframework, compile it using shell/apple/emulator-ios/OpenMP/build_ios_openmp.sh") + endif() + endif() endif() option(BUILD_SHARED_LIBS "Build shared library" OFF) diff --git a/shell/apple/emulator-ios/OpenMP/build_ios_openmp.sh b/shell/apple/emulator-ios/OpenMP/build_ios_openmp.sh new file mode 100755 index 000000000..82a20e0fe --- /dev/null +++ b/shell/apple/emulator-ios/OpenMP/build_ios_openmp.sh @@ -0,0 +1,73 @@ +#!/bin/bash +usage() { echo "Usage: $0 {-d | --disableSimulator}" 1>&2; exit 1; } + +while [ "${1:-}" != "" ]; do + case "$1" in + "-d" | "--disableSimulator") + disableSimulator=true + ;; + "-h" | "--help") + usage + exit + ;; + esac + shift +done + +OMP_VER=14.0.6 +DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd ) +SRC_DIR="${DIR}/openmp-${OMP_VER}.src" + +# Download OpenMP +(cd ${DIR} && curl -OL "https://github.com/llvm/llvm-project/releases/download/llvmorg-${OMP_VER}/openmp-${OMP_VER}.src.tar.xz") +(cd ${DIR} && tar -xf ${DIR}/openmp-${OMP_VER}.src.tar.xz openmp-${OMP_VER}.src) + +# Build iOS +mkdir -p ${SRC_DIR}/build +cmake -B ${SRC_DIR}/build -S ${SRC_DIR} \ + -DCMAKE_TOOLCHAIN_FILE=${DIR}/ios.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${SRC_DIR}/build/install \ + -DIOS_PLATFORM=OS -DENABLE_BITCODE=1 -DENABLE_ARC=0 -DENABLE_VISIBILITY=0 -DIOS_ARCH="arm64;arm64e" \ + -DPERL_EXECUTABLE=$(which perl) \ + -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF +cmake --build ${SRC_DIR}/build -j 3 +cmake --build ${SRC_DIR}/build --target install +FRAMEWORK_DIR="${SRC_DIR}/build/install/OpenMP.framework" +mkdir -p "${FRAMEWORK_DIR}/Versions/A/Headers" +ln -sfh A "${FRAMEWORK_DIR}/Versions/Current" +ln -sfh Versions/Current/Headers "${FRAMEWORK_DIR}/Headers" +ln -sfh "Versions/Current/libomp.a" \ + "${FRAMEWORK_DIR}/OpenMP" +cp ${SRC_DIR}/build/install/lib/libomp.a "${FRAMEWORK_DIR}/Versions/A/libomp.a" +cp ${SRC_DIR}/build/install/include/* "${FRAMEWORK_DIR}/Versions/A/Headers" + + +# Build Simulator +if [ -z "$disableSimulator" ] +then + mkdir -p ${SRC_DIR}/build-simulator + cmake -B ${SRC_DIR}/build-simulator -S ${SRC_DIR} \ + -DCMAKE_TOOLCHAIN_FILE=${DIR}/ios.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${SRC_DIR}/build-simulator/install \ + -DIOS_PLATFORM=SIMULATOR -DENABLE_BITCODE=1 -DENABLE_ARC=0 -DENABLE_VISIBILITY=0 -DIOS_ARCH="x86_64;arm64" \ + -DPERL_EXECUTABLE=$(which perl) \ + -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF + cmake --build ${SRC_DIR}/build-simulator -j 3 + cmake --build ${SRC_DIR}/build-simulator --target install + FRAMEWORK_SIM_DIR="${SRC_DIR}/build-simulator/install/OpenMP.framework" + mkdir -p "${FRAMEWORK_SIM_DIR}/Versions/A/Headers" + ln -sfh A "${FRAMEWORK_SIM_DIR}/Versions/Current" + ln -sfh Versions/Current/Headers "${FRAMEWORK_SIM_DIR}/Headers" + ln -sfh "Versions/Current/libomp.a" \ + "${FRAMEWORK_SIM_DIR}/OpenMP" + cp ${SRC_DIR}/build-simulator/install/lib/libomp.a "${FRAMEWORK_SIM_DIR}/Versions/A/libomp.a" + cp ${SRC_DIR}/build-simulator/install/include/* "${FRAMEWORK_SIM_DIR}/Versions/A/Headers" + + ARG_SIM="-framework $FRAMEWORK_SIM_DIR " +fi + +# Create XCFramework +rm -rf "${DIR}/OpenMP.xcframework" +xcodebuild -create-xcframework -framework $FRAMEWORK_DIR $ARG_SIM -output "${DIR}/OpenMP.xcframework" + +# Clean up +rm -rf "${DIR}/openmp-${OMP_VER}"* + diff --git a/shell/apple/emulator-ios/OpenMP/ios.toolchain.cmake b/shell/apple/emulator-ios/OpenMP/ios.toolchain.cmake new file mode 100644 index 000000000..e9d2502de --- /dev/null +++ b/shell/apple/emulator-ios/OpenMP/ios.toolchain.cmake @@ -0,0 +1,486 @@ +# 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) +# +# ***************************************************************************** +# 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 variables control the behaviour of this toolchain: +# +# IOS_PLATFORM: OS (default) or SIMULATOR or SIMULATOR64 or TVOS or SIMULATOR_TVOS or WATCHOS or SIMULATOR_WATCHOS +# OS = Build for iPhoneOS. +# OS64 = Build for arm64 arm64e iPhoneOS. +# SIMULATOR = Build for x86 i386 iPhone Simulator. +# SIMULATOR64 = Build for x86_64 iPhone Simulator. +# TVOS = Build for AppleTVOS. +# SIMULATOR_TVOS = Build for x86_64 AppleTV Simulator. +# WATCHOS = Build for armv7k arm64_32 for WatchOS. +# SIMULATOR_WATCHOS = Build for x86_64 for Watch 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). +# 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) +# IOS_ARCH: (armv7 armv7s armv7k arm64 arm64e arm64_32 i386 x86_64) If specified, will override the default architectures for the given IOS_PLATFORM +# OS = armv7 armv7s arm64 arm64e (if applicable) +# OS64 = arm64 arm64e (if applicable) +# SIMULATOR = i386 x86_64 +# 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. +# 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 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 +# iOS environment. Thanks to the android-cmake project for providing the +# command. + +# 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) + +# 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") + elseif (CMAKE_OSX_ARCHITECTURES MATCHES "armv7k") + set(IOS_PLATFORM "WATCHOS") + 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) + if(NOT IOS_ARCH) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(IOS_ARCH armv7 armv7s arm64 arm64e) + else() + set(IOS_ARCH armv7 armv7s arm64) + endif() + endif() + elseif (IOS_PLATFORM STREQUAL "OS64") + set(XCODE_IOS_PLATFORM iphoneos) + if(NOT IOS_ARCH) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(IOS_ARCH arm64 arm64e) + else() + set(IOS_ARCH arm64) + endif() + endif() +elseif (IOS_PLATFORM STREQUAL "SIMULATOR") + set(XCODE_IOS_PLATFORM iphonesimulator) + if(NOT IOS_ARCH) + set(IOS_ARCH i386 x86_64) + endif() +elseif(IOS_PLATFORM STREQUAL "SIMULATOR64") + set(XCODE_IOS_PLATFORM iphonesimulator) + if(NOT IOS_ARCH) + set(IOS_ARCH x86_64) + endif() +elseif (IOS_PLATFORM STREQUAL "TVOS") + set(XCODE_IOS_PLATFORM appletvos) + if(NOT IOS_ARCH) + set(IOS_ARCH arm64) + endif() +elseif (IOS_PLATFORM STREQUAL "SIMULATOR_TVOS") + set(XCODE_IOS_PLATFORM appletvsimulator) + if(NOT IOS_ARCH) + set(IOS_ARCH x86_64) + endif() +elseif (IOS_PLATFORM STREQUAL "WATCHOS") + set(XCODE_IOS_PLATFORM watchos) + if(NOT IOS_ARCH) + if (XCODE_VERSION VERSION_GREATER 10.0) + set(IOS_ARCH armv7k arm64_32) + else() + set(IOS_ARCH armv7k) + endif() + endif() +elseif (IOS_PLATFORM STREQUAL "SIMULATOR_WATCHOS") + set(XCODE_IOS_PLATFORM watchsimulator) + if(NOT IOS_ARCH) + set(IOS_ARCH x86_64) + endif() +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. +execute_process(COMMAND xcodebuild -version -sdk ${XCODE_IOS_PLATFORM} Path + OUTPUT_VARIABLE CMAKE_OSX_SYSROOT_INT + OUTPUT_QUIET ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE) +# If user did not specify the SDK root to use, then query xcodebuild for it. +if (NOT DEFINED CMAKE_OSX_SYSROOT OR (NOT CMAKE_OSX_SYSROOT STREQUAL CMAKE_OSX_SYSROOT_INT)) + execute_process(COMMAND xcodebuild -version -sdk ${XCODE_IOS_PLATFORM} Path + OUTPUT_VARIABLE CMAKE_OSX_SYSROOT + ERROR_QUIET + OUTPUT_STRIP_TRAILING_WHITESPACE) +endif() +if (NOT EXISTS ${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) + message(STATUS "Using manually set SDK path: ${CMAKE_OSX_SYSROOT} for platform: ${IOS_PLATFORM}") +else() + message(STATUS "Using SDK: ${CMAKE_OSX_SYSROOT} for platform: ${IOS_PLATFORM}") +endif() +# Specify minimum version of deployment target. +if (NOT DEFINED IOS_DEPLOYMENT_TARGET) + if (IOS_PLATFORM STREQUAL "WATCHOS" OR IOS_PLATFORM STREQUAL "SIMULATOR_WATCHOS") + # Unless specified, SDK version 2.0 is used by default as minimum target version (watchOS). + set(IOS_DEPLOYMENT_TARGET "2.0" + CACHE STRING "Minimum iOS version to build for." ) + else() + # Unless specified, SDK version 9.0 is used by default as minimum target version (iOS, tvOS). + set(IOS_DEPLOYMENT_TARGET "9.0" + CACHE STRING "Minimum iOS version to build for." ) + endif() + message(STATUS "Using the default min-version since IOS_DEPLOYMENT_TARGET not provided!") +endif() +# Use bitcode or not +if (NOT DEFINED ENABLE_BITCODE AND NOT IOS_ARCH MATCHES "((^|, )(i386|x86_64))+") + # Unless specified, enable bitcode support by default + set(ENABLE_BITCODE TRUE CACHE BOOL "Whether or not to enable bitcode") + message(STATUS "Enabling bitcode support by default. ENABLE_BITCODE not provided!") +endif() +if (NOT DEFINED ENABLE_BITCODE) + message(STATUS "Disabling bitcode support by default on simulators. ENABLE_BITCODE not provided for override!") +endif() +# Use ARC or not +if (NOT DEFINED ENABLE_ARC) + # Unless specified, enable ARC support by default + set(ENABLE_ARC TRUE CACHE BOOL "Whether or not to enable ARC") + message(STATUS "Enabling ARC support by default. ENABLE_ARC not provided!") +endif() +# Use hidden visibility or not +if (NOT DEFINED ENABLE_VISIBILITY) + # Unless specified, disable symbols visibility by default + set(ENABLE_VISIBILITY FALSE CACHE BOOL "Whether or not to hide symbols (-fvisibility=hidden)") + message(STATUS "Hiding symbols visibility by default. ENABLE_VISIBILITY not provided!") +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 ") +set(CMAKE_CXX_CREATE_STATIC_LIBRARY + "${IOS_LIBTOOL} -static -o ") +# 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 CACHE INTERNAL "") +set(CMAKE_SYSTEM_VERSION ${IOS_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) +# 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 ${IOS_ARCH} CACHE STRING "Build architecture for iOS") +# Change the type of target generated for try_compile() so it'll work when cross-compiling +set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY) +# All iOS/Darwin specific settings - some may be redundant. +set(CMAKE_SHARED_LIBRARY_PREFIX "lib") +set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib") +set(CMAKE_SHARED_MODULE_PREFIX "lib") +set(CMAKE_SHARED_MODULE_SUFFIX ".so") +set(CMAKE_C_COMPILER_ABI ELF) +set(CMAKE_CXX_COMPILER_ABI ELF) +set(CMAKE_C_HAS_ISYSROOT 1) +set(CMAKE_CXX_HAS_ISYSROOT 1) +set(CMAKE_MODULE_EXISTS 1) +set(CMAKE_DL_LIBS "") +set(CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ") +set(CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ") +set(CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}") +set(CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}") + +if(IOS_ARCH MATCHES "((^|, )(arm64|arm64e|x86_64))+") + set(CMAKE_C_SIZEOF_DATA_PTR 8) + set(CMAKE_CXX_SIZEOF_DATA_PTR 8) + message(STATUS "Using a data_ptr size of 8") +else() + set(CMAKE_C_SIZEOF_DATA_PTR 4) + set(CMAKE_CXX_SIZEOF_DATA_PTR 4) + message(STATUS "Using a data_ptr size of 4") +endif() + +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 (IOS_PLATFORM STREQUAL "OS" OR IOS_PLATFORM STREQUAL "OS64") + if (XCODE_VERSION VERSION_LESS 7.0) + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-mios-version-min=${IOS_DEPLOYMENT_TARGET}") + else() + # Xcode 7.0+ uses flags we can build directly from XCODE_IOS_PLATFORM. + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}") + endif() +elseif (IOS_PLATFORM STREQUAL "TVOS") + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-mtvos-version-min=${IOS_DEPLOYMENT_TARGET}") +elseif (IOS_PLATFORM STREQUAL "SIMULATOR_TVOS") + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-mtvos-simulator-version-min=${IOS_DEPLOYMENT_TARGET}") +elseif (IOS_PLATFORM STREQUAL "WATCHOS") + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-mwatchos-version-min=${IOS_DEPLOYMENT_TARGET}") +elseif (IOS_PLATFORM STREQUAL "SIMULATOR_WATCHOS") + set(XCODE_IOS_PLATFORM_VERSION_FLAGS + "-mwatchos-simulator-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() +message(STATUS "Version flags set to: ${XCODE_IOS_PLATFORM_VERSION_FLAGS}") + +if (ENABLE_BITCODE) + set(BITCODE "-fembed-bitcode") + set(HEADER_PAD "") + message(STATUS "Enabling bitcode support.") +else() + set(BITCODE "") + set(HEADER_PAD "-headerpad_max_install_names") + message(STATUS "Disabling bitcode support.") +endif() + +if (ENABLE_ARC) + set(FOBJC_ARC "-fobjc-arc") + message(STATUS "Enabling ARC support.") +else() + set(FOBJC_ARC "-fno-objc-arc") + message(STATUS "Disabling ARC support.") +endif() + +if (NOT ENABLE_VISIBILITY) + set(VISIBILITY "-fvisibility=hidden") + message(STATUS "Hiding symbols (-fvisibility=hidden).") +else() + set(VISIBILITY "") +endif() + +set(CMAKE_C_FLAGS +"${XCODE_IOS_PLATFORM_VERSION_FLAGS} ${BITCODE} -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} ${BITCODE} ${VISIBILITY} -fvisibility-inlines-hidden -fobjc-abi-version=2 ${FOBJC_ARC} ${CMAKE_CXX_FLAGS}") +set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS} -DNDEBUG -Os -ffast-math ${BITCODE} ${CMAKE_CXX_FLAGS_MINSIZEREL}") +set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS} -DNDEBUG -O2 -g -ffast-math ${BITCODE} ${CMAKE_CXX_FLAGS_RELWITHDEBINFO}") +set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS} -DNDEBUG -O3 -ffast-math ${BITCODE} ${CMAKE_CXX_FLAGS_RELEASE}") +set(CMAKE_C_LINK_FLAGS "${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_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 "") +endforeach() + +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 ${HEADER_PAD}") +set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle ${HEADER_PAD}") +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 + ${CMAKE_OSX_SYSROOT}/Developer/Library/Frameworks) +# Only search the specified iOS SDK, not the remainder of the host filesystem. +set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY) +set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) +set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) +# This little macro lets you set any XCode specific property. +macro(set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE XCODE_RELVERSION) + set(XCODE_RELVERSION_I "${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(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)