framework/delibs/cmake/toolchain-android-r10e.cmake - third_party/vulkan-cts - Git at Google

 #-------------------------------------------------------------------------
 # drawElements CMake utilities
 # ----------------------------
 #
 # Copyright 2016 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
 #-------------------------------------------------------------------------

 # Platform defines.
 set(CMAKE_SYSTEM_NAME Linux)

 set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)

 set(CMAKE_CROSSCOMPILING 1)

 # NDK installation path
 if (NOT DEFINED ANDROID_NDK_PATH)
 	message(FATAL_ERROR "Please provide ANDROID_NDK_PATH")
 endif ()

 # Host os (for toolchain binaries)
 if (NOT DEFINED ANDROID_NDK_HOST_OS)
 	message(STATUS "Warning: ANDROID_NDK_HOST_OS is not set")
 	if (WIN32)
 		set(ANDROID_NDK_HOST_OS "windows")
 	elseif (UNIX)
 		set(ANDROID_NDK_HOST_OS "linux-86")
 	endif ()
 endif ()

 # Compile target
 set(ANDROID_ABI			"armeabi-v7a"			CACHE STRING "Android ABI")
 set(ANDROID_NDK_TARGET	"android-${DE_ANDROID_API}")

 # dE defines
 set(DE_OS "DE_OS_ANDROID")

 if (NOT DEFINED DE_COMPILER)
 	set(DE_COMPILER	"DE_COMPILER_CLANG")
 endif ()

 if (NOT DEFINED DE_ANDROID_API)
 	set(DE_ANDROID_API 9)
 endif ()

 set(COMMON_C_FLAGS		"-D__STDC_INT64__")
 set(COMMON_CXX_FLAGS	"${COMMON_C_FLAGS} -frtti -fexceptions")
 set(COMMON_LINKER_FLAGS	"")
 set(ARM_C_FLAGS			"-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ")

 # ABI-dependent bits
 if (ANDROID_ABI STREQUAL "x86")
 	set(DE_CPU					"DE_CPU_X86")
 	set(CMAKE_SYSTEM_PROCESSOR	i686-android-linux)

 	set(ANDROID_CC_PATH			"${ANDROID_NDK_PATH}/toolchains/x86-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
 	set(CROSS_COMPILE			"${ANDROID_CC_PATH}bin/i686-linux-android-")
 	set(ANDROID_SYSROOT			"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86")

 	set(CMAKE_FIND_ROOT_PATH
 		"${ANDROID_CC_PATH}i686-linux-android"
 		"${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.9"
 		)

 	set(TARGET_C_FLAGS			"-march=i686 -msse3 -mstackrealign -mfpmath=sse")
 	set(TARGET_LINKER_FLAGS		"")
 	set(LLVM_TRIPLE				"i686-none-linux-android")

 elseif (ANDROID_ABI STREQUAL "armeabi" OR
 		ANDROID_ABI STREQUAL "armeabi-v7a")
 	set(DE_CPU					"DE_CPU_ARM")
 	set(CMAKE_SYSTEM_PROCESSOR	arm-linux-androideabi)

 	set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
 	set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/arm-linux-androideabi-")
 	set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm")

 	if (ANDROID_ABI STREQUAL "armeabi-v7a")
 		set(TARGET_C_FLAGS		"${ARM_C_FLAGS} -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp")
 		set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a8 -march=armv7-a")
 		set(LLVM_TRIPLE			"armv7-none-linux-androideabi")

 	else () # armeabi
 		set(TARGET_C_FLAGS		"${ARM_C_FLAGS} -march=armv5te -mfloat-abi=softfp")
 		set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a8 -march=armv5te")
 		set(LLVM_TRIPLE			"armv5te-none-linux-androideabi")
 	endif ()

 	set(CMAKE_FIND_ROOT_PATH
 		"${ANDROID_CC_PATH}arm-linux-androideabi"
 		)

 elseif (ANDROID_ABI STREQUAL "arm64-v8a")
 	set(DE_CPU					"DE_CPU_ARM_64")
 	set(CMAKE_SYSTEM_PROCESSOR	aarch64-linux-android)
 	set(CMAKE_SIZEOF_VOID_P		8)

 	set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/aarch64-linux-android-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
 	set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/aarch64-linux-android-")
 	set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm64")

 	set(CMAKE_FIND_ROOT_PATH
 		"${ANDROID_CC_PATH}arm-linux-androideabi"
 		)

 	set(TARGET_C_FLAGS		"-march=armv8-a")
 	set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a53-835769 -Wl,--fix-cortex-a53-835769 -march=armv8-a")
 	set(LLVM_TRIPLE			"aarch64-none-linux-android")

 	if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
 		set(TARGET_C_FLAGS "${TARGET_C_FLAGS} -mabi=lp64")
 	endif ()

 elseif (ANDROID_ABI STREQUAL "x86_64")
 	set(DE_CPU					"DE_CPU_X86_64")
 	set(CMAKE_SYSTEM_PROCESSOR	x86_64-linux-android)
 	set(CMAKE_SIZEOF_VOID_P		8)

 	set(CMAKE_LIBRARY_PATH "/usr/lib64")

 	set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/x86_64-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
 	set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/x86_64-linux-android-")
 	set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86_64")

 	set(CMAKE_FIND_ROOT_PATH
 		"${ANDROID_CC_PATH}x86_64-linux-android"
 		)

 	set(LLVM_TRIPLE			"x86_64-none-linux-android")

 else ()
 	message(FATAL_ERROR "Unknown ABI \"${ANDROID_ABI}\"")
 endif ()

 # C++ library
 if (ANDROID_ABI STREQUAL "x86")
 	# Use gnu-libstc++, since libc++ is currently broken on x86, bug #22124988
 	set(ANDROID_CXX_LIBRARY		"${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}/libgnustl_static.a")
 	set(CXX_INCLUDES			"-I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}/include")
 	set(CMAKE_FIND_ROOT_PATH	"${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}" ${CMAKE_FIND_ROOT_PATH})
 else ()
 	# Use LLVM libc++ for full C++11 support
 	set(ANDROID_CXX_LIBRARY		"${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_ABI}/libc++_static.a")
 	set(CXX_INCLUDES			"-I${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libcxx/include")
 	set(CMAKE_FIND_ROOT_PATH	"" ${CMAKE_FIND_ROOT_PATH})
 endif ()

 set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${ANDROID_SYSROOT})

 include(CMakeForceCompiler)

 if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
 	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
 		ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
 		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86")
 		cmake_force_c_compiler("${CROSS_COMPILE}gcc"		GNU)
 		cmake_force_cxx_compiler("${CROSS_COMPILE}g++"		GNU)
 	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows")
 		cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe"	GNU)
 		cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe"	GNU)
 	else ()
 		message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
 	endif ()

 	set(TARGET_C_FLAGS		"-mandroid ${TARGET_C_FLAGS}")

 elseif (DE_COMPILER STREQUAL "DE_COMPILER_CLANG")
 	if (NOT DEFINED LLVM_VERSION)
 		if (ANDROID_NDK_HOST_OS STREQUAL "windows" OR
 			ANDROID_NDK_HOST_OS STREQUAL "windows-x86_64")
 			# Windows NDK prebuilts don't include llvm-ar tool in version 3.6
 			set(LLVM_VERSION "3.5")
 		else ()
 			set(LLVM_VERSION "3.6")
 		endif ()
 	endif ()

 	set(LLVM_PATH "${ANDROID_NDK_PATH}/toolchains/llvm-${LLVM_VERSION}/prebuilt/${ANDROID_NDK_HOST_OS}/")

 	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
 		ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
 		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86" OR
 		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86_64")
 		cmake_force_c_compiler("${LLVM_PATH}bin/clang"			Clang)
 		cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++"		Clang)
 		set(CMAKE_AR "${LLVM_PATH}/bin/llvm-ar" CACHE FILEPATH "Archiver")
 		set(CMAKE_RANLIB "${CROSS_COMPILE}ranlib" CACHE FILEPATH "Indexer")
 	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows" OR
 			ANDROID_NDK_HOST_OS STREQUAL "windows-x86_64")
 		cmake_force_c_compiler("${LLVM_PATH}bin/clang.exe"		Clang)
 		cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++.exe"	Clang)
 		set(CMAKE_AR "${LLVM_PATH}bin/llvm-ar.exe" CACHE FILEPATH "Archiver")
 	else ()
 		message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
 	endif ()

 	set(TARGET_C_FLAGS		"-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_C_FLAGS}")
 	set(TARGET_LINKER_FLAGS	"-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_LINKER_FLAGS}")

 endif ()

 set(CMAKE_SHARED_LIBRARY_C_FLAGS	"")
 set(CMAKE_SHARED_LIBRARY_CXX_FLAGS	"")

 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

 # \note Without CACHE STRING FORCE cmake ignores these.
 set(CMAKE_C_FLAGS				"--sysroot=${ANDROID_SYSROOT} ${COMMON_C_FLAGS} ${TARGET_C_FLAGS}" CACHE STRING "" FORCE)
 set(CMAKE_CXX_FLAGS				"--sysroot=${ANDROID_SYSROOT} ${COMMON_CXX_FLAGS} ${TARGET_C_FLAGS} ${CXX_INCLUDES} -I${ANDROID_NDK_PATH}/sources/android/support/include" CACHE STRING "" FORCE)
 set(CMAKE_SHARED_LINKER_FLAGS	"-nodefaultlibs -Wl,-shared,-Bsymbolic -Wl,--no-undefined ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)
 set(CMAKE_EXE_LINKER_FLAGS		"-nodefaultlibs ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)
	#-------------------------------------------------------------------------
	# drawElements CMake utilities
	# ----------------------------
	#
	# Copyright 2016 The Android Open Source Project
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	#
	#-------------------------------------------------------------------------

	# Platform defines.
	set(CMAKE_SYSTEM_NAME Linux)

	set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)

	set(CMAKE_CROSSCOMPILING 1)

	# NDK installation path
	if (NOT DEFINED ANDROID_NDK_PATH)
	message(FATAL_ERROR "Please provide ANDROID_NDK_PATH")
	endif ()

	# Host os (for toolchain binaries)
	if (NOT DEFINED ANDROID_NDK_HOST_OS)
	message(STATUS "Warning: ANDROID_NDK_HOST_OS is not set")
	if (WIN32)
	set(ANDROID_NDK_HOST_OS "windows")
	elseif (UNIX)
	set(ANDROID_NDK_HOST_OS "linux-86")
	endif ()
	endif ()

	# Compile target
	set(ANDROID_ABI "armeabi-v7a" CACHE STRING "Android ABI")
	set(ANDROID_NDK_TARGET "android-${DE_ANDROID_API}")

	# dE defines
	set(DE_OS "DE_OS_ANDROID")

	if (NOT DEFINED DE_COMPILER)
	set(DE_COMPILER "DE_COMPILER_CLANG")
	endif ()

	if (NOT DEFINED DE_ANDROID_API)
	set(DE_ANDROID_API 9)
	endif ()

	set(COMMON_C_FLAGS "-D__STDC_INT64__")
	set(COMMON_CXX_FLAGS "${COMMON_C_FLAGS} -frtti -fexceptions")
	set(COMMON_LINKER_FLAGS "")
	set(ARM_C_FLAGS "-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ")

	# ABI-dependent bits
	if (ANDROID_ABI STREQUAL "x86")
	set(DE_CPU "DE_CPU_X86")
	set(CMAKE_SYSTEM_PROCESSOR i686-android-linux)

	set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/x86-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
	set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/i686-linux-android-")
	set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86")

	set(CMAKE_FIND_ROOT_PATH
	"${ANDROID_CC_PATH}i686-linux-android"
	"${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.9"
	)

	set(TARGET_C_FLAGS "-march=i686 -msse3 -mstackrealign -mfpmath=sse")
	set(TARGET_LINKER_FLAGS "")
	set(LLVM_TRIPLE "i686-none-linux-android")

	elseif (ANDROID_ABI STREQUAL "armeabi" OR
	ANDROID_ABI STREQUAL "armeabi-v7a")
	set(DE_CPU "DE_CPU_ARM")
	set(CMAKE_SYSTEM_PROCESSOR arm-linux-androideabi)

	set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
	set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/arm-linux-androideabi-")
	set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm")

	if (ANDROID_ABI STREQUAL "armeabi-v7a")
	set(TARGET_C_FLAGS "${ARM_C_FLAGS} -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp")
	set(TARGET_LINKER_FLAGS "-Wl,--fix-cortex-a8 -march=armv7-a")
	set(LLVM_TRIPLE "armv7-none-linux-androideabi")

	else () # armeabi
	set(TARGET_C_FLAGS "${ARM_C_FLAGS} -march=armv5te -mfloat-abi=softfp")
	set(TARGET_LINKER_FLAGS "-Wl,--fix-cortex-a8 -march=armv5te")
	set(LLVM_TRIPLE "armv5te-none-linux-androideabi")
	endif ()

	set(CMAKE_FIND_ROOT_PATH
	"${ANDROID_CC_PATH}arm-linux-androideabi"
	)

	elseif (ANDROID_ABI STREQUAL "arm64-v8a")
	set(DE_CPU "DE_CPU_ARM_64")
	set(CMAKE_SYSTEM_PROCESSOR aarch64-linux-android)
	set(CMAKE_SIZEOF_VOID_P 8)

	set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/aarch64-linux-android-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
	set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/aarch64-linux-android-")
	set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm64")

	set(CMAKE_FIND_ROOT_PATH
	"${ANDROID_CC_PATH}arm-linux-androideabi"
	)

	set(TARGET_C_FLAGS "-march=armv8-a")
	set(TARGET_LINKER_FLAGS "-Wl,--fix-cortex-a53-835769 -Wl,--fix-cortex-a53-835769 -march=armv8-a")
	set(LLVM_TRIPLE "aarch64-none-linux-android")

	if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
	set(TARGET_C_FLAGS "${TARGET_C_FLAGS} -mabi=lp64")
	endif ()

	elseif (ANDROID_ABI STREQUAL "x86_64")
	set(DE_CPU "DE_CPU_X86_64")
	set(CMAKE_SYSTEM_PROCESSOR x86_64-linux-android)
	set(CMAKE_SIZEOF_VOID_P 8)

	set(CMAKE_LIBRARY_PATH "/usr/lib64")

	set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/x86_64-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
	set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/x86_64-linux-android-")
	set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86_64")

	set(CMAKE_FIND_ROOT_PATH
	"${ANDROID_CC_PATH}x86_64-linux-android"
	)

	set(LLVM_TRIPLE "x86_64-none-linux-android")

	else ()
	message(FATAL_ERROR "Unknown ABI \"${ANDROID_ABI}\"")
	endif ()

	# C++ library
	if (ANDROID_ABI STREQUAL "x86")
	# Use gnu-libstc++, since libc++ is currently broken on x86, bug #22124988
	set(ANDROID_CXX_LIBRARY "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}/libgnustl_static.a")
	set(CXX_INCLUDES "-I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}/include")
	set(CMAKE_FIND_ROOT_PATH "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.9/libs/${ANDROID_ABI}" ${CMAKE_FIND_ROOT_PATH})
	else ()
	# Use LLVM libc++ for full C++11 support
	set(ANDROID_CXX_LIBRARY "${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_ABI}/libc++_static.a")
	set(CXX_INCLUDES "-I${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libcxx/include")
	set(CMAKE_FIND_ROOT_PATH "" ${CMAKE_FIND_ROOT_PATH})
	endif ()

	set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${ANDROID_SYSROOT})

	include(CMakeForceCompiler)

	if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
	ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
	ANDROID_NDK_HOST_OS STREQUAL "darwin-x86")
	cmake_force_c_compiler("${CROSS_COMPILE}gcc" GNU)
	cmake_force_cxx_compiler("${CROSS_COMPILE}g++" GNU)
	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows")
	cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe" GNU)
	cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe" GNU)
	else ()
	message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
	endif ()

	set(TARGET_C_FLAGS "-mandroid ${TARGET_C_FLAGS}")

	elseif (DE_COMPILER STREQUAL "DE_COMPILER_CLANG")
	if (NOT DEFINED LLVM_VERSION)
	if (ANDROID_NDK_HOST_OS STREQUAL "windows" OR
	ANDROID_NDK_HOST_OS STREQUAL "windows-x86_64")
	# Windows NDK prebuilts don't include llvm-ar tool in version 3.6
	set(LLVM_VERSION "3.5")
	else ()
	set(LLVM_VERSION "3.6")
	endif ()
	endif ()

	set(LLVM_PATH "${ANDROID_NDK_PATH}/toolchains/llvm-${LLVM_VERSION}/prebuilt/${ANDROID_NDK_HOST_OS}/")

	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
	ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
	ANDROID_NDK_HOST_OS STREQUAL "darwin-x86" OR
	ANDROID_NDK_HOST_OS STREQUAL "darwin-x86_64")
	cmake_force_c_compiler("${LLVM_PATH}bin/clang" Clang)
	cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++" Clang)
	set(CMAKE_AR "${LLVM_PATH}/bin/llvm-ar" CACHE FILEPATH "Archiver")
	set(CMAKE_RANLIB "${CROSS_COMPILE}ranlib" CACHE FILEPATH "Indexer")
	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows" OR
	ANDROID_NDK_HOST_OS STREQUAL "windows-x86_64")
	cmake_force_c_compiler("${LLVM_PATH}bin/clang.exe" Clang)
	cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++.exe" Clang)
	set(CMAKE_AR "${LLVM_PATH}bin/llvm-ar.exe" CACHE FILEPATH "Archiver")
	else ()
	message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
	endif ()

	set(TARGET_C_FLAGS "-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_C_FLAGS}")
	set(TARGET_LINKER_FLAGS "-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_LINKER_FLAGS}")

	endif ()

	set(CMAKE_SHARED_LIBRARY_C_FLAGS "")
	set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")

	set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
	set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
	set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

	# \note Without CACHE STRING FORCE cmake ignores these.
	set(CMAKE_C_FLAGS "--sysroot=${ANDROID_SYSROOT} ${COMMON_C_FLAGS} ${TARGET_C_FLAGS}" CACHE STRING "" FORCE)
	set(CMAKE_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT} ${COMMON_CXX_FLAGS} ${TARGET_C_FLAGS} ${CXX_INCLUDES} -I${ANDROID_NDK_PATH}/sources/android/support/include" CACHE STRING "" FORCE)
	set(CMAKE_SHARED_LINKER_FLAGS "-nodefaultlibs -Wl,-shared,-Bsymbolic -Wl,--no-undefined ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)
	set(CMAKE_EXE_LINKER_FLAGS "-nodefaultlibs ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)