diff options
| -rw-r--r-- | cmake/cotire.cmake | 4054 | ||||
| -rw-r--r-- | cmake/opentrack-boilerplate.cmake | 4 | 
2 files changed, 4058 insertions, 0 deletions
| diff --git a/cmake/cotire.cmake b/cmake/cotire.cmake new file mode 100644 index 00000000..a957e6bf --- /dev/null +++ b/cmake/cotire.cmake @@ -0,0 +1,4054 @@ +# - cotire (compile time reducer)
 +#
 +# See the cotire manual for usage hints.
 +#
 +#=============================================================================
 +# Copyright 2012-2017 Sascha Kratky
 +#
 +# Permission is hereby granted, free of charge, to any person
 +# obtaining a copy of this software and associated documentation
 +# files (the "Software"), to deal in the Software without
 +# restriction, including without limitation the rights to use,
 +# copy, modify, merge, publish, distribute, sublicense, and/or sell
 +# copies of the Software, and to permit persons to whom the
 +# Software is furnished to do so, subject to the following
 +# conditions:
 +#
 +# The above copyright notice and this permission notice shall be
 +# included in all copies or substantial portions of the Software.
 +#
 +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 +# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 +# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 +# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 +# OTHER DEALINGS IN THE SOFTWARE.
 +#=============================================================================
 +
 +if(__COTIRE_INCLUDED)
 +	return()
 +endif()
 +set(__COTIRE_INCLUDED TRUE)
 +
 +# call cmake_minimum_required, but prevent modification of the CMake policy stack in include mode
 +# cmake_minimum_required also sets the policy version as a side effect, which we have to avoid
 +if (NOT CMAKE_SCRIPT_MODE_FILE)
 +	cmake_policy(PUSH)
 +endif()
 +cmake_minimum_required(VERSION 2.8.12)
 +if (NOT CMAKE_SCRIPT_MODE_FILE)
 +	cmake_policy(POP)
 +endif()
 +
 +set (COTIRE_CMAKE_MODULE_FILE "${CMAKE_CURRENT_LIST_FILE}")
 +set (COTIRE_CMAKE_MODULE_VERSION "1.7.10")
 +
 +# activate select policies
 +if (POLICY CMP0025)
 +	# Compiler id for Apple Clang is now AppleClang
 +	cmake_policy(SET CMP0025 NEW)
 +endif()
 +
 +if (POLICY CMP0026)
 +	# disallow use of the LOCATION target property
 +	cmake_policy(SET CMP0026 NEW)
 +endif()
 +
 +if (POLICY CMP0038)
 +	# targets may not link directly to themselves
 +	cmake_policy(SET CMP0038 NEW)
 +endif()
 +
 +if (POLICY CMP0039)
 +	# utility targets may not have link dependencies
 +	cmake_policy(SET CMP0039 NEW)
 +endif()
 +
 +if (POLICY CMP0040)
 +	# target in the TARGET signature of add_custom_command() must exist
 +	cmake_policy(SET CMP0040 NEW)
 +endif()
 +
 +if (POLICY CMP0045)
 +	# error on non-existent target in get_target_property
 +	cmake_policy(SET CMP0045 NEW)
 +endif()
 +
 +if (POLICY CMP0046)
 +	# error on non-existent dependency in add_dependencies
 +	cmake_policy(SET CMP0046 NEW)
 +endif()
 +
 +if (POLICY CMP0049)
 +	# do not expand variables in target source entries
 +	cmake_policy(SET CMP0049 NEW)
 +endif()
 +
 +if (POLICY CMP0050)
 +	# disallow add_custom_command SOURCE signatures
 +	cmake_policy(SET CMP0050 NEW)
 +endif()
 +
 +if (POLICY CMP0051)
 +	# include TARGET_OBJECTS expressions in a target's SOURCES property
 +	cmake_policy(SET CMP0051 NEW)
 +endif()
 +
 +if (POLICY CMP0053)
 +	# simplify variable reference and escape sequence evaluation
 +	cmake_policy(SET CMP0053 NEW)
 +endif()
 +
 +if (POLICY CMP0054)
 +	# only interpret if() arguments as variables or keywords when unquoted
 +	cmake_policy(SET CMP0054 NEW)
 +endif()
 +
 +if (POLICY CMP0055)
 +	# strict checking for break() command
 +	cmake_policy(SET CMP0055 NEW)
 +endif()
 +
 +include(CMakeParseArguments)
 +include(ProcessorCount)
 +
 +function (cotire_get_configuration_types _configsVar)
 +	set (_configs "")
 +	if (CMAKE_CONFIGURATION_TYPES)
 +		list (APPEND _configs ${CMAKE_CONFIGURATION_TYPES})
 +	endif()
 +	if (CMAKE_BUILD_TYPE)
 +		list (APPEND _configs "${CMAKE_BUILD_TYPE}")
 +	endif()
 +	if (_configs)
 +		list (REMOVE_DUPLICATES _configs)
 +		set (${_configsVar} ${_configs} PARENT_SCOPE)
 +	else()
 +		set (${_configsVar} "None" PARENT_SCOPE)
 +	endif()
 +endfunction()
 +
 +function (cotire_get_source_file_extension _sourceFile _extVar)
 +	# get_filename_component returns extension from first occurrence of . in file name
 +	# this function computes the extension from last occurrence of . in file name
 +	string (FIND "${_sourceFile}" "." _index REVERSE)
 +	if (_index GREATER -1)
 +		math (EXPR _index "${_index} + 1")
 +		string (SUBSTRING "${_sourceFile}" ${_index} -1 _sourceExt)
 +	else()
 +		set (_sourceExt "")
 +	endif()
 +	set (${_extVar} "${_sourceExt}" PARENT_SCOPE)
 +endfunction()
 +
 +macro (cotire_check_is_path_relative_to _path _isRelativeVar)
 +	set (${_isRelativeVar} FALSE)
 +	if (IS_ABSOLUTE "${_path}")
 +		foreach (_dir ${ARGN})
 +			file (RELATIVE_PATH _relPath "${_dir}" "${_path}")
 +			if (NOT _relPath OR (NOT IS_ABSOLUTE "${_relPath}" AND NOT "${_relPath}" MATCHES "^\\.\\."))
 +				set (${_isRelativeVar} TRUE)
 +				break()
 +			endif()
 +		endforeach()
 +	endif()
 +endmacro()
 +
 +function (cotire_filter_language_source_files _language _target _sourceFilesVar _excludedSourceFilesVar _cotiredSourceFilesVar)
 +	if (CMAKE_${_language}_SOURCE_FILE_EXTENSIONS)
 +		set (_languageExtensions "${CMAKE_${_language}_SOURCE_FILE_EXTENSIONS}")
 +	else()
 +		set (_languageExtensions "")
 +	endif()
 +	if (CMAKE_${_language}_IGNORE_EXTENSIONS)
 +		set (_ignoreExtensions "${CMAKE_${_language}_IGNORE_EXTENSIONS}")
 +	else()
 +		set (_ignoreExtensions "")
 +	endif()
 +	if (COTIRE_UNITY_SOURCE_EXCLUDE_EXTENSIONS)
 +		set (_excludeExtensions "${COTIRE_UNITY_SOURCE_EXCLUDE_EXTENSIONS}")
 +	else()
 +		set (_excludeExtensions "")
 +	endif()
 +	if (COTIRE_DEBUG AND _languageExtensions)
 +		message (STATUS "${_language} source file extensions: ${_languageExtensions}")
 +	endif()
 +	if (COTIRE_DEBUG AND _ignoreExtensions)
 +		message (STATUS "${_language} ignore extensions: ${_ignoreExtensions}")
 +	endif()
 +	if (COTIRE_DEBUG AND _excludeExtensions)
 +		message (STATUS "${_language} exclude extensions: ${_excludeExtensions}")
 +	endif()
 +	if (CMAKE_VERSION VERSION_LESS "3.1.0")
 +		set (_allSourceFiles ${ARGN})
 +	else()
 +		# as of CMake 3.1 target sources may contain generator expressions
 +		# since we cannot obtain required property information about source files added
 +		# through generator expressions at configure time, we filter them out
 +		string (GENEX_STRIP "${ARGN}" _allSourceFiles)
 +	endif()
 +	set (_filteredSourceFiles "")
 +	set (_excludedSourceFiles "")
 +	foreach (_sourceFile ${_allSourceFiles})
 +		get_source_file_property(_sourceIsHeaderOnly "${_sourceFile}" HEADER_FILE_ONLY)
 +		get_source_file_property(_sourceIsExternal "${_sourceFile}" EXTERNAL_OBJECT)
 +		get_source_file_property(_sourceIsSymbolic "${_sourceFile}" SYMBOLIC)
 +		if (NOT _sourceIsHeaderOnly AND NOT _sourceIsExternal AND NOT _sourceIsSymbolic)
 +			cotire_get_source_file_extension("${_sourceFile}" _sourceExt)
 +			if (_sourceExt)
 +				list (FIND _ignoreExtensions "${_sourceExt}" _ignoreIndex)
 +				if (_ignoreIndex LESS 0)
 +					list (FIND _excludeExtensions "${_sourceExt}" _excludeIndex)
 +					if (_excludeIndex GREATER -1)
 +						list (APPEND _excludedSourceFiles "${_sourceFile}")
 +					else()
 +						list (FIND _languageExtensions "${_sourceExt}" _sourceIndex)
 +						if (_sourceIndex GREATER -1)
 +							# consider source file unless it is excluded explicitly
 +							get_source_file_property(_sourceIsExcluded "${_sourceFile}" COTIRE_EXCLUDED)
 +							if (_sourceIsExcluded)
 +								list (APPEND _excludedSourceFiles "${_sourceFile}")
 +							else()
 +								list (APPEND _filteredSourceFiles "${_sourceFile}")
 +							endif()
 +						else()
 +							get_source_file_property(_sourceLanguage "${_sourceFile}" LANGUAGE)
 +							if ("${_sourceLanguage}" STREQUAL "${_language}")
 +								# add to excluded sources, if file is not ignored and has correct language without having the correct extension
 +								list (APPEND _excludedSourceFiles "${_sourceFile}")
 +							endif()
 +						endif()
 +					endif()
 +				endif()
 +			endif()
 +		endif()
 +	endforeach()
 +	# separate filtered source files from already cotired ones
 +	# the COTIRE_TARGET property of a source file may be set while a target is being processed by cotire
 +	set (_sourceFiles "")
 +	set (_cotiredSourceFiles "")
 +	foreach (_sourceFile ${_filteredSourceFiles})
 +		get_source_file_property(_sourceIsCotired "${_sourceFile}" COTIRE_TARGET)
 +		if (_sourceIsCotired)
 +			list (APPEND _cotiredSourceFiles "${_sourceFile}")
 +		else()
 +			get_source_file_property(_sourceCompileFlags "${_sourceFile}" COMPILE_FLAGS)
 +			if (_sourceCompileFlags)
 +				# add to excluded sources, if file has custom compile flags
 +				list (APPEND _excludedSourceFiles "${_sourceFile}")
 +			else()
 +				list (APPEND _sourceFiles "${_sourceFile}")
 +			endif()
 +		endif()
 +	endforeach()
 +	if (COTIRE_DEBUG)
 +		if (_sourceFiles)
 +			message (STATUS "Filtered ${_target} ${_language} sources: ${_sourceFiles}")
 +		endif()
 +		if (_excludedSourceFiles)
 +			message (STATUS "Excluded ${_target} ${_language} sources: ${_excludedSourceFiles}")
 +		endif()
 +		if (_cotiredSourceFiles)
 +			message (STATUS "Cotired ${_target} ${_language} sources: ${_cotiredSourceFiles}")
 +		endif()
 +	endif()
 +	set (${_sourceFilesVar} ${_sourceFiles} PARENT_SCOPE)
 +	set (${_excludedSourceFilesVar} ${_excludedSourceFiles} PARENT_SCOPE)
 +	set (${_cotiredSourceFilesVar} ${_cotiredSourceFiles} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_objects_with_property_on _filteredObjectsVar _property _type)
 +	set (_filteredObjects "")
 +	foreach (_object ${ARGN})
 +		get_property(_isSet ${_type} "${_object}" PROPERTY ${_property} SET)
 +		if (_isSet)
 +			get_property(_propertyValue ${_type} "${_object}" PROPERTY ${_property})
 +			if (_propertyValue)
 +				list (APPEND _filteredObjects "${_object}")
 +			endif()
 +		endif()
 +	endforeach()
 +	set (${_filteredObjectsVar} ${_filteredObjects} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_objects_with_property_off _filteredObjectsVar _property _type)
 +	set (_filteredObjects "")
 +	foreach (_object ${ARGN})
 +		get_property(_isSet ${_type} "${_object}" PROPERTY ${_property} SET)
 +		if (_isSet)
 +			get_property(_propertyValue ${_type} "${_object}" PROPERTY ${_property})
 +			if (NOT _propertyValue)
 +				list (APPEND _filteredObjects "${_object}")
 +			endif()
 +		endif()
 +	endforeach()
 +	set (${_filteredObjectsVar} ${_filteredObjects} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_file_property_values _valuesVar _property)
 +	set (_values "")
 +	foreach (_sourceFile ${ARGN})
 +		get_source_file_property(_propertyValue "${_sourceFile}" ${_property})
 +		if (_propertyValue)
 +			list (APPEND _values "${_propertyValue}")
 +		endif()
 +	endforeach()
 +	set (${_valuesVar} ${_values} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_resolve_config_properties _configurations _propertiesVar)
 +	set (_properties "")
 +	foreach (_property ${ARGN})
 +		if ("${_property}" MATCHES "<CONFIG>")
 +			foreach (_config ${_configurations})
 +				string (TOUPPER "${_config}" _upperConfig)
 +				string (REPLACE "<CONFIG>" "${_upperConfig}" _configProperty "${_property}")
 +				list (APPEND _properties ${_configProperty})
 +			endforeach()
 +		else()
 +			list (APPEND _properties ${_property})
 +		endif()
 +	endforeach()
 +	set (${_propertiesVar} ${_properties} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_copy_set_properties _configurations _type _source _target)
 +	cotire_resolve_config_properties("${_configurations}" _properties ${ARGN})
 +	foreach (_property ${_properties})
 +		get_property(_isSet ${_type} ${_source} PROPERTY ${_property} SET)
 +		if (_isSet)
 +			get_property(_propertyValue ${_type} ${_source} PROPERTY ${_property})
 +			set_property(${_type} ${_target} PROPERTY ${_property} "${_propertyValue}")
 +		endif()
 +	endforeach()
 +endfunction()
 +
 +function (cotire_get_target_usage_requirements _target _config _targetRequirementsVar)
 +	set (_targetRequirements "")
 +	get_target_property(_librariesToProcess ${_target} LINK_LIBRARIES)
 +	while (_librariesToProcess)
 +		# remove from head
 +		list (GET _librariesToProcess 0 _library)
 +		list (REMOVE_AT _librariesToProcess 0)
 +		if (_library MATCHES "^\\$<\\$<CONFIG:${_config}>:([A-Za-z0-9_:-]+)>$")
 +			set (_library "${CMAKE_MATCH_1}")
 +		elseif (_config STREQUAL "None" AND _library MATCHES "^\\$<\\$<CONFIG:>:([A-Za-z0-9_:-]+)>$")
 +			set (_library "${CMAKE_MATCH_1}")
 +		endif()
 +		if (TARGET ${_library})
 +			list (FIND _targetRequirements ${_library} _index)
 +			if (_index LESS 0)
 +				list (APPEND _targetRequirements ${_library})
 +				# BFS traversal of transitive libraries
 +				get_target_property(_libraries ${_library} INTERFACE_LINK_LIBRARIES)
 +				if (_libraries)
 +					list (APPEND _librariesToProcess ${_libraries})
 +					list (REMOVE_DUPLICATES _librariesToProcess)
 +				endif()
 +			endif()
 +		endif()
 +	endwhile()
 +	set (${_targetRequirementsVar} ${_targetRequirements} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_filter_compile_flags _language _flagFilter _matchedOptionsVar _unmatchedOptionsVar)
 +	if (WIN32 AND CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +		set (_flagPrefix "[/-]")
 +	else()
 +		set (_flagPrefix "--?")
 +	endif()
 +	set (_optionFlag "")
 +	set (_matchedOptions "")
 +	set (_unmatchedOptions "")
 +	foreach (_compileFlag ${ARGN})
 +		if (_compileFlag)
 +			if (_optionFlag AND NOT "${_compileFlag}" MATCHES "^${_flagPrefix}")
 +				# option with separate argument
 +				list (APPEND _matchedOptions "${_compileFlag}")
 +				set (_optionFlag "")
 +			elseif ("${_compileFlag}" MATCHES "^(${_flagPrefix})(${_flagFilter})$")
 +				# remember option
 +				set (_optionFlag "${CMAKE_MATCH_2}")
 +			elseif ("${_compileFlag}" MATCHES "^(${_flagPrefix})(${_flagFilter})(.+)$")
 +				# option with joined argument
 +				list (APPEND _matchedOptions "${CMAKE_MATCH_3}")
 +				set (_optionFlag "")
 +			else()
 +				# flush remembered option
 +				if (_optionFlag)
 +					list (APPEND _matchedOptions "${_optionFlag}")
 +					set (_optionFlag "")
 +				endif()
 +				# add to unfiltered options
 +				list (APPEND _unmatchedOptions "${_compileFlag}")
 +			endif()
 +		endif()
 +	endforeach()
 +	if (_optionFlag)
 +		list (APPEND _matchedOptions "${_optionFlag}")
 +	endif()
 +	if (COTIRE_DEBUG AND _matchedOptions)
 +		message (STATUS "Filter ${_flagFilter} matched: ${_matchedOptions}")
 +	endif()
 +	if (COTIRE_DEBUG AND _unmatchedOptions)
 +		message (STATUS "Filter ${_flagFilter} unmatched: ${_unmatchedOptions}")
 +	endif()
 +	set (${_matchedOptionsVar} ${_matchedOptions} PARENT_SCOPE)
 +	set (${_unmatchedOptionsVar} ${_unmatchedOptions} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_is_target_supported _target _isSupportedVar)
 +	if (NOT TARGET "${_target}")
 +		set (${_isSupportedVar} FALSE PARENT_SCOPE)
 +		return()
 +	endif()
 +	get_target_property(_imported ${_target} IMPORTED)
 +	if (_imported)
 +		set (${_isSupportedVar} FALSE PARENT_SCOPE)
 +		return()
 +	endif()
 +	get_target_property(_targetType ${_target} TYPE)
 +	if (NOT _targetType MATCHES "EXECUTABLE|(STATIC|SHARED|MODULE|OBJECT)_LIBRARY")
 +		set (${_isSupportedVar} FALSE PARENT_SCOPE)
 +		return()
 +	endif()
 +	set (${_isSupportedVar} TRUE PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_target_compile_flags _config _language _target _flagsVar)
 +	string (TOUPPER "${_config}" _upperConfig)
 +	# collect options from CMake language variables
 +	set (_compileFlags "")
 +	if (CMAKE_${_language}_FLAGS)
 +		set (_compileFlags "${_compileFlags} ${CMAKE_${_language}_FLAGS}")
 +	endif()
 +	if (CMAKE_${_language}_FLAGS_${_upperConfig})
 +		set (_compileFlags "${_compileFlags} ${CMAKE_${_language}_FLAGS_${_upperConfig}}")
 +	endif()
 +	if (_target)
 +		# add target compile flags
 +		get_target_property(_targetflags ${_target} COMPILE_FLAGS)
 +		if (_targetflags)
 +			set (_compileFlags "${_compileFlags} ${_targetflags}")
 +		endif()
 +	endif()
 +	if (UNIX)
 +		separate_arguments(_compileFlags UNIX_COMMAND "${_compileFlags}")
 +	elseif(WIN32)
 +		separate_arguments(_compileFlags WINDOWS_COMMAND "${_compileFlags}")
 +	else()
 +		separate_arguments(_compileFlags)
 +	endif()
 +	# target compile options
 +	if (_target)
 +		get_target_property(_targetOptions ${_target} COMPILE_OPTIONS)
 +		if (_targetOptions)
 +			list (APPEND _compileFlags ${_targetOptions})
 +		endif()
 +	endif()
 +	# interface compile options from linked library targets
 +	if (_target)
 +		set (_linkedTargets "")
 +		cotire_get_target_usage_requirements(${_target} ${_config} _linkedTargets)
 +		foreach (_linkedTarget ${_linkedTargets})
 +			get_target_property(_targetOptions ${_linkedTarget} INTERFACE_COMPILE_OPTIONS)
 +			if (_targetOptions)
 +				list (APPEND _compileFlags ${_targetOptions})
 +			endif()
 +		endforeach()
 +	endif()
 +	# handle language standard properties
 +	if (CMAKE_${_language}_STANDARD_DEFAULT)
 +		# used compiler supports language standard levels
 +		if (_target)
 +			get_target_property(_targetLanguageStandard ${_target} ${_language}_STANDARD)
 +			if (_targetLanguageStandard)
 +				set (_type "EXTENSION")
 +				get_property(_isSet TARGET ${_target} PROPERTY ${_language}_EXTENSIONS SET)
 +				if (_isSet)
 +					get_target_property(_targetUseLanguageExtensions ${_target} ${_language}_EXTENSIONS)
 +					if (NOT _targetUseLanguageExtensions)
 +						set (_type "STANDARD")
 +					endif()
 +				endif()
 +				if (CMAKE_${_language}${_targetLanguageStandard}_${_type}_COMPILE_OPTION)
 +					list (APPEND _compileFlags "${CMAKE_${_language}${_targetLanguageStandard}_${_type}_COMPILE_OPTION}")
 +				endif()
 +			endif()
 +		endif()
 +	endif()
 +	# handle the POSITION_INDEPENDENT_CODE target property
 +	if (_target)
 +		get_target_property(_targetPIC ${_target} POSITION_INDEPENDENT_CODE)
 +		if (_targetPIC)
 +			get_target_property(_targetType ${_target} TYPE)
 +			if (_targetType STREQUAL "EXECUTABLE" AND CMAKE_${_language}_COMPILE_OPTIONS_PIE)
 +				list (APPEND _compileFlags "${CMAKE_${_language}_COMPILE_OPTIONS_PIE}")
 +			elseif (CMAKE_${_language}_COMPILE_OPTIONS_PIC)
 +				list (APPEND _compileFlags "${CMAKE_${_language}_COMPILE_OPTIONS_PIC}")
 +			endif()
 +		endif()
 +	endif()
 +	# handle visibility target properties
 +	if (_target)
 +		get_target_property(_targetVisibility ${_target} ${_language}_VISIBILITY_PRESET)
 +		if (_targetVisibility AND CMAKE_${_language}_COMPILE_OPTIONS_VISIBILITY)
 +			list (APPEND _compileFlags "${CMAKE_${_language}_COMPILE_OPTIONS_VISIBILITY}${_targetVisibility}")
 +		endif()
 +		get_target_property(_targetVisibilityInlines ${_target} VISIBILITY_INLINES_HIDDEN)
 +		if (_targetVisibilityInlines AND CMAKE_${_language}_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN)
 +			list (APPEND _compileFlags "${CMAKE_${_language}_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN}")
 +		endif()
 +	endif()
 +	# platform specific flags
 +	if (APPLE)
 +		get_target_property(_architectures ${_target} OSX_ARCHITECTURES_${_upperConfig})
 +		if (NOT _architectures)
 +			get_target_property(_architectures ${_target} OSX_ARCHITECTURES)
 +		endif()
 +		if (_architectures)
 +			foreach (_arch ${_architectures})
 +				list (APPEND _compileFlags "-arch" "${_arch}")
 +			endforeach()
 +		endif()
 +		if (CMAKE_OSX_SYSROOT)
 +			if (CMAKE_${_language}_SYSROOT_FLAG)
 +				list (APPEND _compileFlags "${CMAKE_${_language}_SYSROOT_FLAG}" "${CMAKE_OSX_SYSROOT}")
 +			else()
 +				list (APPEND _compileFlags "-isysroot" "${CMAKE_OSX_SYSROOT}")
 +			endif()
 +		endif()
 +		if (CMAKE_OSX_DEPLOYMENT_TARGET)
 +			if (CMAKE_${_language}_OSX_DEPLOYMENT_TARGET_FLAG)
 +				list (APPEND _compileFlags "${CMAKE_${_language}_OSX_DEPLOYMENT_TARGET_FLAG}${CMAKE_OSX_DEPLOYMENT_TARGET}")
 +			else()
 +				list (APPEND _compileFlags "-mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}")
 +			endif()
 +		endif()
 +	endif()
 +	if (COTIRE_DEBUG AND _compileFlags)
 +		message (STATUS "Target ${_target} compile flags: ${_compileFlags}")
 +	endif()
 +	set (${_flagsVar} ${_compileFlags} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_target_include_directories _config _language _target _includeDirsVar _systemIncludeDirsVar)
 +	set (_includeDirs "")
 +	set (_systemIncludeDirs "")
 +	# default include dirs
 +	if (CMAKE_INCLUDE_CURRENT_DIR)
 +		list (APPEND _includeDirs "${CMAKE_CURRENT_BINARY_DIR}")
 +		list (APPEND _includeDirs "${CMAKE_CURRENT_SOURCE_DIR}")
 +	endif()
 +	set (_targetFlags "")
 +	cotire_get_target_compile_flags("${_config}" "${_language}" "${_target}" _targetFlags)
 +	# parse additional include directories from target compile flags
 +	if (CMAKE_INCLUDE_FLAG_${_language})
 +		string (STRIP "${CMAKE_INCLUDE_FLAG_${_language}}" _includeFlag)
 +		string (REGEX REPLACE "^[-/]+" "" _includeFlag "${_includeFlag}")
 +		if (_includeFlag)
 +			set (_dirs "")
 +			cotire_filter_compile_flags("${_language}" "${_includeFlag}" _dirs _ignore ${_targetFlags})
 +			if (_dirs)
 +				list (APPEND _includeDirs ${_dirs})
 +			endif()
 +		endif()
 +	endif()
 +	# parse additional system include directories from target compile flags
 +	if (CMAKE_INCLUDE_SYSTEM_FLAG_${_language})
 +		string (STRIP "${CMAKE_INCLUDE_SYSTEM_FLAG_${_language}}" _includeFlag)
 +		string (REGEX REPLACE "^[-/]+" "" _includeFlag "${_includeFlag}")
 +		if (_includeFlag)
 +			set (_dirs "")
 +			cotire_filter_compile_flags("${_language}" "${_includeFlag}" _dirs _ignore ${_targetFlags})
 +			if (_dirs)
 +				list (APPEND _systemIncludeDirs ${_dirs})
 +			endif()
 +		endif()
 +	endif()
 +	# target include directories
 +	get_directory_property(_dirs DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" INCLUDE_DIRECTORIES)
 +	if (_target)
 +		get_target_property(_targetDirs ${_target} INCLUDE_DIRECTORIES)
 +		if (_targetDirs)
 +			list (APPEND _dirs ${_targetDirs})
 +		endif()
 +		get_target_property(_targetDirs ${_target} INTERFACE_SYSTEM_INCLUDE_DIRECTORIES)
 +		if (_targetDirs)
 +			list (APPEND _systemIncludeDirs ${_targetDirs})
 +		endif()
 +	endif()
 +	# interface include directories from linked library targets
 +	if (_target)
 +		set (_linkedTargets "")
 +		cotire_get_target_usage_requirements(${_target} ${_config} _linkedTargets)
 +		foreach (_linkedTarget ${_linkedTargets})
 +			get_target_property(_linkedTargetType ${_linkedTarget} TYPE)
 +			if (CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE AND NOT CMAKE_VERSION VERSION_LESS "3.4.0" AND
 +				_linkedTargetType MATCHES "(STATIC|SHARED|MODULE|OBJECT)_LIBRARY")
 +				# CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE refers to CMAKE_CURRENT_BINARY_DIR and CMAKE_CURRENT_SOURCE_DIR
 +				# at the time, when the target was created. These correspond to the target properties BINARY_DIR and SOURCE_DIR
 +				# which are only available with CMake 3.4 or later.
 +				get_target_property(_targetDirs ${_linkedTarget} BINARY_DIR)
 +				if (_targetDirs)
 +					list (APPEND _dirs ${_targetDirs})
 +				endif()
 +				get_target_property(_targetDirs ${_linkedTarget} SOURCE_DIR)
 +				if (_targetDirs)
 +					list (APPEND _dirs ${_targetDirs})
 +				endif()
 +			endif()
 +			get_target_property(_targetDirs ${_linkedTarget} INTERFACE_INCLUDE_DIRECTORIES)
 +			if (_targetDirs)
 +				list (APPEND _dirs ${_targetDirs})
 +			endif()
 +			get_target_property(_targetDirs ${_linkedTarget} INTERFACE_SYSTEM_INCLUDE_DIRECTORIES)
 +			if (_targetDirs)
 +				list (APPEND _systemIncludeDirs ${_targetDirs})
 +			endif()
 +		endforeach()
 +	endif()
 +	if (dirs)
 +		list (REMOVE_DUPLICATES _dirs)
 +	endif()
 +	list (LENGTH _includeDirs _projectInsertIndex)
 +	foreach (_dir ${_dirs})
 +		if (CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE)
 +			cotire_check_is_path_relative_to("${_dir}" _isRelative "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}")
 +			if (_isRelative)
 +				list (LENGTH _includeDirs _len)
 +				if (_len EQUAL _projectInsertIndex)
 +					list (APPEND _includeDirs "${_dir}")
 +				else()
 +					list (INSERT _includeDirs _projectInsertIndex "${_dir}")
 +				endif()
 +				math (EXPR _projectInsertIndex "${_projectInsertIndex} + 1")
 +			else()
 +				list (APPEND _includeDirs "${_dir}")
 +			endif()
 +		else()
 +			list (APPEND _includeDirs "${_dir}")
 +		endif()
 +	endforeach()
 +	list (REMOVE_DUPLICATES _includeDirs)
 +	list (REMOVE_DUPLICATES _systemIncludeDirs)
 +	if (CMAKE_${_language}_IMPLICIT_INCLUDE_DIRECTORIES)
 +		list (REMOVE_ITEM _includeDirs ${CMAKE_${_language}_IMPLICIT_INCLUDE_DIRECTORIES})
 +	endif()
 +	if (WIN32 AND NOT MINGW)
 +		# convert Windows paths in include directories to CMake paths
 +		if (_includeDirs)
 +			set (_paths "")
 +			foreach (_dir ${_includeDirs})
 +				file (TO_CMAKE_PATH "${_dir}" _path)
 +				list (APPEND _paths "${_path}")
 +			endforeach()
 +			set (_includeDirs ${_paths})
 +		endif()
 +		if (_systemIncludeDirs)
 +			set (_paths "")
 +			foreach (_dir ${_systemIncludeDirs})
 +				file (TO_CMAKE_PATH "${_dir}" _path)
 +				list (APPEND _paths "${_path}")
 +			endforeach()
 +			set (_systemIncludeDirs ${_paths})
 +		endif()
 +	endif()
 +	if (COTIRE_DEBUG AND _includeDirs)
 +		message (STATUS "Target ${_target} include dirs: ${_includeDirs}")
 +	endif()
 +	set (${_includeDirsVar} ${_includeDirs} PARENT_SCOPE)
 +	if (COTIRE_DEBUG AND _systemIncludeDirs)
 +		message (STATUS "Target ${_target} system include dirs: ${_systemIncludeDirs}")
 +	endif()
 +	set (${_systemIncludeDirsVar} ${_systemIncludeDirs} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_target_export_symbol _target _exportSymbolVar)
 +	set (_exportSymbol "")
 +	get_target_property(_targetType ${_target} TYPE)
 +	get_target_property(_enableExports ${_target} ENABLE_EXPORTS)
 +	if (_targetType MATCHES "(SHARED|MODULE)_LIBRARY" OR
 +		(_targetType STREQUAL "EXECUTABLE" AND _enableExports))
 +		get_target_property(_exportSymbol ${_target} DEFINE_SYMBOL)
 +		if (NOT _exportSymbol)
 +			set (_exportSymbol "${_target}_EXPORTS")
 +		endif()
 +		string (MAKE_C_IDENTIFIER "${_exportSymbol}" _exportSymbol)
 +	endif()
 +	set (${_exportSymbolVar} ${_exportSymbol} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_target_compile_definitions _config _language _target _definitionsVar)
 +	string (TOUPPER "${_config}" _upperConfig)
 +	set (_configDefinitions "")
 +	# CMAKE_INTDIR for multi-configuration build systems
 +	if (NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
 +		list (APPEND _configDefinitions "CMAKE_INTDIR=\"${_config}\"")
 +	endif()
 +	# target export define symbol
 +	cotire_get_target_export_symbol("${_target}" _defineSymbol)
 +	if (_defineSymbol)
 +		list (APPEND _configDefinitions "${_defineSymbol}")
 +	endif()
 +	# directory compile definitions
 +	get_directory_property(_definitions DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" COMPILE_DEFINITIONS)
 +	if (_definitions)
 +		list (APPEND _configDefinitions ${_definitions})
 +	endif()
 +	get_directory_property(_definitions DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" COMPILE_DEFINITIONS_${_upperConfig})
 +	if (_definitions)
 +		list (APPEND _configDefinitions ${_definitions})
 +	endif()
 +	# target compile definitions
 +	get_target_property(_definitions ${_target} COMPILE_DEFINITIONS)
 +	if (_definitions)
 +		list (APPEND _configDefinitions ${_definitions})
 +	endif()
 +	get_target_property(_definitions ${_target} COMPILE_DEFINITIONS_${_upperConfig})
 +	if (_definitions)
 +		list (APPEND _configDefinitions ${_definitions})
 +	endif()
 +	# interface compile definitions from linked library targets
 +	set (_linkedTargets "")
 +	cotire_get_target_usage_requirements(${_target} ${_config} _linkedTargets)
 +	foreach (_linkedTarget ${_linkedTargets})
 +		get_target_property(_definitions ${_linkedTarget} INTERFACE_COMPILE_DEFINITIONS)
 +		if (_definitions)
 +			list (APPEND _configDefinitions ${_definitions})
 +		endif()
 +	endforeach()
 +	# parse additional compile definitions from target compile flags
 +	# and don't look at directory compile definitions, which we already handled
 +	set (_targetFlags "")
 +	cotire_get_target_compile_flags("${_config}" "${_language}" "${_target}" _targetFlags)
 +	cotire_filter_compile_flags("${_language}" "D" _definitions _ignore ${_targetFlags})
 +	if (_definitions)
 +		list (APPEND _configDefinitions ${_definitions})
 +	endif()
 +	list (REMOVE_DUPLICATES _configDefinitions)
 +	if (COTIRE_DEBUG AND _configDefinitions)
 +		message (STATUS "Target ${_target} compile definitions: ${_configDefinitions}")
 +	endif()
 +	set (${_definitionsVar} ${_configDefinitions} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_target_compiler_flags _config _language _target _compilerFlagsVar)
 +	# parse target compile flags omitting compile definitions and include directives
 +	set (_targetFlags "")
 +	cotire_get_target_compile_flags("${_config}" "${_language}" "${_target}" _targetFlags)
 +	set (_flagFilter "D")
 +	if (CMAKE_INCLUDE_FLAG_${_language})
 +		string (STRIP "${CMAKE_INCLUDE_FLAG_${_language}}" _includeFlag)
 +		string (REGEX REPLACE "^[-/]+" "" _includeFlag "${_includeFlag}")
 +		if (_includeFlag)
 +			set (_flagFilter "${_flagFilter}|${_includeFlag}")
 +		endif()
 +	endif()
 +	if (CMAKE_INCLUDE_SYSTEM_FLAG_${_language})
 +		string (STRIP "${CMAKE_INCLUDE_SYSTEM_FLAG_${_language}}" _includeFlag)
 +		string (REGEX REPLACE "^[-/]+" "" _includeFlag "${_includeFlag}")
 +		if (_includeFlag)
 +			set (_flagFilter "${_flagFilter}|${_includeFlag}")
 +		endif()
 +	endif()
 +	set (_compilerFlags "")
 +	cotire_filter_compile_flags("${_language}" "${_flagFilter}" _ignore _compilerFlags ${_targetFlags})
 +	if (COTIRE_DEBUG AND _compilerFlags)
 +		message (STATUS "Target ${_target} compiler flags: ${_compilerFlags}")
 +	endif()
 +	set (${_compilerFlagsVar} ${_compilerFlags} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_add_sys_root_paths _pathsVar)
 +	if (APPLE)
 +		if (CMAKE_OSX_SYSROOT AND CMAKE_${_language}_HAS_ISYSROOT)
 +			foreach (_path IN LISTS ${_pathsVar})
 +				if (IS_ABSOLUTE "${_path}")
 +					get_filename_component(_path "${CMAKE_OSX_SYSROOT}/${_path}" ABSOLUTE)
 +					if (EXISTS "${_path}")
 +						list (APPEND ${_pathsVar} "${_path}")
 +					endif()
 +				endif()
 +			endforeach()
 +		endif()
 +	endif()
 +	set (${_pathsVar} ${${_pathsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_extra_properties _sourceFile _pattern _resultVar)
 +	set (_extraProperties ${ARGN})
 +	set (_result "")
 +	if (_extraProperties)
 +		list (FIND _extraProperties "${_sourceFile}" _index)
 +		if (_index GREATER -1)
 +			math (EXPR _index "${_index} + 1")
 +			list (LENGTH _extraProperties _len)
 +			math (EXPR _len "${_len} - 1")
 +			foreach (_index RANGE ${_index} ${_len})
 +				list (GET _extraProperties ${_index} _value)
 +				if (_value MATCHES "${_pattern}")
 +					list (APPEND _result "${_value}")
 +				else()
 +					break()
 +				endif()
 +			endforeach()
 +		endif()
 +	endif()
 +	set (${_resultVar} ${_result} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_compile_definitions _config _language _sourceFile _definitionsVar)
 +	set (_compileDefinitions "")
 +	if (NOT CMAKE_SCRIPT_MODE_FILE)
 +		string (TOUPPER "${_config}" _upperConfig)
 +		get_source_file_property(_definitions "${_sourceFile}" COMPILE_DEFINITIONS)
 +		if (_definitions)
 +			list (APPEND _compileDefinitions ${_definitions})
 +		endif()
 +		get_source_file_property(_definitions "${_sourceFile}" COMPILE_DEFINITIONS_${_upperConfig})
 +		if (_definitions)
 +			list (APPEND _compileDefinitions ${_definitions})
 +		endif()
 +	endif()
 +	cotire_get_source_extra_properties("${_sourceFile}" "^[a-zA-Z0-9_]+(=.*)?$" _definitions ${ARGN})
 +	if (_definitions)
 +		list (APPEND _compileDefinitions ${_definitions})
 +	endif()
 +	if (COTIRE_DEBUG AND _compileDefinitions)
 +		message (STATUS "Source ${_sourceFile} compile definitions: ${_compileDefinitions}")
 +	endif()
 +	set (${_definitionsVar} ${_compileDefinitions} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_files_compile_definitions _config _language _definitionsVar)
 +	set (_configDefinitions "")
 +	foreach (_sourceFile ${ARGN})
 +		cotire_get_source_compile_definitions("${_config}" "${_language}" "${_sourceFile}" _sourceDefinitions)
 +		if (_sourceDefinitions)
 +			list (APPEND _configDefinitions "${_sourceFile}" ${_sourceDefinitions} "-")
 +		endif()
 +	endforeach()
 +	set (${_definitionsVar} ${_configDefinitions} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_undefs _sourceFile _property _sourceUndefsVar)
 +	set (_sourceUndefs "")
 +	if (NOT CMAKE_SCRIPT_MODE_FILE)
 +		get_source_file_property(_undefs "${_sourceFile}" ${_property})
 +		if (_undefs)
 +			list (APPEND _sourceUndefs ${_undefs})
 +		endif()
 +	endif()
 +	cotire_get_source_extra_properties("${_sourceFile}" "^[a-zA-Z0-9_]+$" _undefs ${ARGN})
 +	if (_undefs)
 +		list (APPEND _sourceUndefs ${_undefs})
 +	endif()
 +	if (COTIRE_DEBUG AND _sourceUndefs)
 +		message (STATUS "Source ${_sourceFile} ${_property} undefs: ${_sourceUndefs}")
 +	endif()
 +	set (${_sourceUndefsVar} ${_sourceUndefs} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_source_files_undefs _property _sourceUndefsVar)
 +	set (_sourceUndefs "")
 +	foreach (_sourceFile ${ARGN})
 +		cotire_get_source_undefs("${_sourceFile}" ${_property} _undefs)
 +		if (_undefs)
 +			list (APPEND _sourceUndefs "${_sourceFile}" ${_undefs} "-")
 +		endif()
 +	endforeach()
 +	set (${_sourceUndefsVar} ${_sourceUndefs} PARENT_SCOPE)
 +endfunction()
 +
 +macro (cotire_set_cmd_to_prologue _cmdVar)
 +	set (${_cmdVar} "${CMAKE_COMMAND}")
 +	if (COTIRE_DEBUG)
 +		list (APPEND ${_cmdVar} "--warn-uninitialized")
 +	endif()
 +	list (APPEND ${_cmdVar} "-DCOTIRE_BUILD_TYPE:STRING=$<CONFIGURATION>")
 +	if (XCODE)
 +		list (APPEND ${_cmdVar} "-DXCODE:BOOL=TRUE")
 +	endif()
 +	if (COTIRE_VERBOSE)
 +		list (APPEND ${_cmdVar} "-DCOTIRE_VERBOSE:BOOL=ON")
 +	elseif("${CMAKE_GENERATOR}" MATCHES "Makefiles")
 +		list (APPEND ${_cmdVar} "-DCOTIRE_VERBOSE:BOOL=$(VERBOSE)")
 +	endif()
 +endmacro()
 +
 +function (cotire_init_compile_cmd _cmdVar _language _compilerLauncher _compilerExe _compilerArg1)
 +	if (NOT _compilerLauncher)
 +		set (_compilerLauncher ${CMAKE_${_language}_COMPILER_LAUNCHER})
 +	endif()
 +	if (NOT _compilerExe)
 +		set (_compilerExe "${CMAKE_${_language}_COMPILER}")
 +	endif()
 +	if (NOT _compilerArg1)
 +		set (_compilerArg1 ${CMAKE_${_language}_COMPILER_ARG1})
 +	endif()
 +	string (STRIP "${_compilerArg1}" _compilerArg1)
 +	if ("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
 +		# compiler launcher is only supported for Makefile and Ninja
 +		set (${_cmdVar} ${_compilerLauncher} "${_compilerExe}" ${_compilerArg1} PARENT_SCOPE)
 +	else()
 +		set (${_cmdVar} "${_compilerExe}" ${_compilerArg1} PARENT_SCOPE)
 +	endif()
 +endfunction()
 +
 +macro (cotire_add_definitions_to_cmd _cmdVar _language)
 +	foreach (_definition ${ARGN})
 +		if (WIN32 AND CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +			list (APPEND ${_cmdVar} "/D${_definition}")
 +		else()
 +			list (APPEND ${_cmdVar} "-D${_definition}")
 +		endif()
 +	endforeach()
 +endmacro()
 +
 +function (cotire_add_includes_to_cmd _cmdVar _language _includesVar _systemIncludesVar)
 +	set (_includeDirs ${${_includesVar}} ${${_systemIncludesVar}})
 +	if (_includeDirs)
 +		list (REMOVE_DUPLICATES _includeDirs)
 +		foreach (_include ${_includeDirs})
 +			if (WIN32 AND CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +				file (TO_NATIVE_PATH "${_include}" _include)
 +				list (APPEND ${_cmdVar} "${CMAKE_INCLUDE_FLAG_${_language}}${CMAKE_INCLUDE_FLAG_SEP_${_language}}${_include}")
 +			else()
 +				set (_index -1)
 +				if ("${CMAKE_INCLUDE_SYSTEM_FLAG_${_language}}" MATCHES ".+")
 +					list (FIND ${_systemIncludesVar} "${_include}" _index)
 +				endif()
 +				if (_index GREATER -1)
 +					list (APPEND ${_cmdVar} "${CMAKE_INCLUDE_SYSTEM_FLAG_${_language}}${CMAKE_INCLUDE_FLAG_SEP_${_language}}${_include}")
 +				else()
 +					list (APPEND ${_cmdVar} "${CMAKE_INCLUDE_FLAG_${_language}}${CMAKE_INCLUDE_FLAG_SEP_${_language}}${_include}")
 +				endif()
 +			endif()
 +		endforeach()
 +	endif()
 +	set (${_cmdVar} ${${_cmdVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_add_frameworks_to_cmd _cmdVar _language _includesVar _systemIncludesVar)
 +	if (APPLE)
 +		set (_frameworkDirs "")
 +		foreach (_include ${${_includesVar}})
 +			if (IS_ABSOLUTE "${_include}" AND _include MATCHES "\\.framework$")
 +				get_filename_component(_frameworkDir "${_include}" DIRECTORY)
 +				list (APPEND _frameworkDirs "${_frameworkDir}")
 +			endif()
 +		endforeach()
 +		set (_systemFrameworkDirs "")
 +		foreach (_include ${${_systemIncludesVar}})
 +			if (IS_ABSOLUTE "${_include}" AND _include MATCHES "\\.framework$")
 +				get_filename_component(_frameworkDir "${_include}" DIRECTORY)
 +				list (APPEND _systemFrameworkDirs "${_frameworkDir}")
 +			endif()
 +		endforeach()
 +		if (_systemFrameworkDirs)
 +			list (APPEND _frameworkDirs ${_systemFrameworkDirs})
 +		endif()
 +		if (_frameworkDirs)
 +			list (REMOVE_DUPLICATES _frameworkDirs)
 +			foreach (_frameworkDir ${_frameworkDirs})
 +				set (_index -1)
 +				if ("${CMAKE_${_language}_SYSTEM_FRAMEWORK_SEARCH_FLAG}" MATCHES ".+")
 +					list (FIND _systemFrameworkDirs "${_frameworkDir}" _index)
 +				endif()
 +				if (_index GREATER -1)
 +					list (APPEND ${_cmdVar} "${CMAKE_${_language}_SYSTEM_FRAMEWORK_SEARCH_FLAG}${_frameworkDir}")
 +				else()
 +					list (APPEND ${_cmdVar} "${CMAKE_${_language}_FRAMEWORK_SEARCH_FLAG}${_frameworkDir}")
 +				endif()
 +			endforeach()
 +		endif()
 +	endif()
 +	set (${_cmdVar} ${${_cmdVar}} PARENT_SCOPE)
 +endfunction()
 +
 +macro (cotire_add_compile_flags_to_cmd _cmdVar)
 +	foreach (_flag ${ARGN})
 +		list (APPEND ${_cmdVar} "${_flag}")
 +	endforeach()
 +endmacro()
 +
 +function (cotire_check_file_up_to_date _fileIsUpToDateVar _file)
 +	if (EXISTS "${_file}")
 +		set (_triggerFile "")
 +		foreach (_dependencyFile ${ARGN})
 +			if (EXISTS "${_dependencyFile}")
 +				# IS_NEWER_THAN returns TRUE if both files have the same timestamp
 +				# thus we do the comparison in both directions to exclude ties
 +				if ("${_dependencyFile}" IS_NEWER_THAN "${_file}" AND
 +					NOT "${_file}" IS_NEWER_THAN "${_dependencyFile}")
 +					set (_triggerFile "${_dependencyFile}")
 +					break()
 +				endif()
 +			endif()
 +		endforeach()
 +		if (_triggerFile)
 +			if (COTIRE_VERBOSE)
 +				get_filename_component(_fileName "${_file}" NAME)
 +				message (STATUS "${_fileName} update triggered by ${_triggerFile} change.")
 +			endif()
 +			set (${_fileIsUpToDateVar} FALSE PARENT_SCOPE)
 +		else()
 +			if (COTIRE_VERBOSE)
 +				get_filename_component(_fileName "${_file}" NAME)
 +				message (STATUS "${_fileName} is up-to-date.")
 +			endif()
 +			set (${_fileIsUpToDateVar} TRUE PARENT_SCOPE)
 +		endif()
 +	else()
 +		if (COTIRE_VERBOSE)
 +			get_filename_component(_fileName "${_file}" NAME)
 +			message (STATUS "${_fileName} does not exist yet.")
 +		endif()
 +		set (${_fileIsUpToDateVar} FALSE PARENT_SCOPE)
 +	endif()
 +endfunction()
 +
 +macro (cotire_find_closest_relative_path _headerFile _includeDirs _relPathVar)
 +	set (${_relPathVar} "")
 +	foreach (_includeDir ${_includeDirs})
 +		if (IS_DIRECTORY "${_includeDir}")
 +			file (RELATIVE_PATH _relPath "${_includeDir}" "${_headerFile}")
 +			if (NOT IS_ABSOLUTE "${_relPath}" AND NOT "${_relPath}" MATCHES "^\\.\\.")
 +				string (LENGTH "${${_relPathVar}}" _closestLen)
 +				string (LENGTH "${_relPath}" _relLen)
 +				if (_closestLen EQUAL 0 OR _relLen LESS _closestLen)
 +					set (${_relPathVar} "${_relPath}")
 +				endif()
 +			endif()
 +		elseif ("${_includeDir}" STREQUAL "${_headerFile}")
 +			# if path matches exactly, return short non-empty string
 +			set (${_relPathVar} "1")
 +			break()
 +		endif()
 +	endforeach()
 +endmacro()
 +
 +macro (cotire_check_header_file_location _headerFile _insideIncludeDirs _outsideIncludeDirs _headerIsInside)
 +	# check header path against ignored and honored include directories
 +	cotire_find_closest_relative_path("${_headerFile}" "${_insideIncludeDirs}" _insideRelPath)
 +	if (_insideRelPath)
 +		# header is inside, but could be become outside if there is a shorter outside match
 +		cotire_find_closest_relative_path("${_headerFile}" "${_outsideIncludeDirs}" _outsideRelPath)
 +		if (_outsideRelPath)
 +			string (LENGTH "${_insideRelPath}" _insideRelPathLen)
 +			string (LENGTH "${_outsideRelPath}" _outsideRelPathLen)
 +			if (_outsideRelPathLen LESS _insideRelPathLen)
 +				set (${_headerIsInside} FALSE)
 +			else()
 +				set (${_headerIsInside} TRUE)
 +			endif()
 +		else()
 +			set (${_headerIsInside} TRUE)
 +		endif()
 +	else()
 +		# header is outside
 +		set (${_headerIsInside} FALSE)
 +	endif()
 +endmacro()
 +
 +macro (cotire_check_ignore_header_file_path _headerFile _headerIsIgnoredVar)
 +	if (NOT EXISTS "${_headerFile}")
 +		set (${_headerIsIgnoredVar} TRUE)
 +	elseif (IS_DIRECTORY "${_headerFile}")
 +		set (${_headerIsIgnoredVar} TRUE)
 +	elseif ("${_headerFile}" MATCHES "\\.\\.|[_-]fixed" AND "${_headerFile}" MATCHES "\\.h$")
 +		# heuristic: ignore C headers with embedded parent directory references or "-fixed" or "_fixed" in path
 +		# these often stem from using GCC #include_next tricks, which may break the precompiled header compilation
 +		# with the error message "error: no include path in which to search for header.h"
 +		set (${_headerIsIgnoredVar} TRUE)
 +	else()
 +		set (${_headerIsIgnoredVar} FALSE)
 +	endif()
 +endmacro()
 +
 +macro (cotire_check_ignore_header_file_ext _headerFile _ignoreExtensionsVar _headerIsIgnoredVar)
 +	# check header file extension
 +	cotire_get_source_file_extension("${_headerFile}" _headerFileExt)
 +	set (${_headerIsIgnoredVar} FALSE)
 +	if (_headerFileExt)
 +		list (FIND ${_ignoreExtensionsVar} "${_headerFileExt}" _index)
 +		if (_index GREATER -1)
 +			set (${_headerIsIgnoredVar} TRUE)
 +		endif()
 +	endif()
 +endmacro()
 +
 +macro (cotire_parse_line _line _headerFileVar _headerDepthVar)
 +	if (MSVC)
 +		# cl.exe /showIncludes output looks different depending on the language pack used, e.g.:
 +		# English: "Note: including file:   C:\directory\file"
 +		# German: "Hinweis: Einlesen der Datei:   C:\directory\file"
 +		# We use a very general regular expression, relying on the presence of the : characters
 +		if (_line MATCHES "( +)([a-zA-Z]:[^:]+)$")
 +			# Visual Studio compiler output
 +			string (LENGTH "${CMAKE_MATCH_1}" ${_headerDepthVar})
 +			get_filename_component(${_headerFileVar} "${CMAKE_MATCH_2}" ABSOLUTE)
 +		else()
 +			set (${_headerFileVar} "")
 +			set (${_headerDepthVar} 0)
 +		endif()
 +	else()
 +		if (_line MATCHES "^(\\.+) (.*)$")
 +			# GCC like output
 +			string (LENGTH "${CMAKE_MATCH_1}" ${_headerDepthVar})
 +			if (IS_ABSOLUTE "${CMAKE_MATCH_2}")
 +				set (${_headerFileVar} "${CMAKE_MATCH_2}")
 +			else()
 +				get_filename_component(${_headerFileVar} "${CMAKE_MATCH_2}" REALPATH)
 +			endif()
 +		else()
 +			set (${_headerFileVar} "")
 +			set (${_headerDepthVar} 0)
 +		endif()
 +	endif()
 +endmacro()
 +
 +function (cotire_parse_includes _language _scanOutput _ignoredIncludeDirs _honoredIncludeDirs _ignoredExtensions _selectedIncludesVar _unparsedLinesVar)
 +	if (WIN32)
 +		# prevent CMake macro invocation errors due to backslash characters in Windows paths
 +		string (REPLACE "\\" "/" _scanOutput "${_scanOutput}")
 +	endif()
 +	# canonize slashes
 +	string (REPLACE "//" "/" _scanOutput "${_scanOutput}")
 +	# prevent semicolon from being interpreted as a line separator
 +	string (REPLACE ";" "\\;" _scanOutput "${_scanOutput}")
 +	# then separate lines
 +	string (REGEX REPLACE "\n" ";" _scanOutput "${_scanOutput}")
 +	list (LENGTH _scanOutput _len)
 +	# remove duplicate lines to speed up parsing
 +	list (REMOVE_DUPLICATES _scanOutput)
 +	list (LENGTH _scanOutput _uniqueLen)
 +	if (COTIRE_VERBOSE OR COTIRE_DEBUG)
 +		message (STATUS "Scanning ${_uniqueLen} unique lines of ${_len} for includes")
 +		if (_ignoredExtensions)
 +			message (STATUS "Ignored extensions: ${_ignoredExtensions}")
 +		endif()
 +		if (_ignoredIncludeDirs)
 +			message (STATUS "Ignored paths: ${_ignoredIncludeDirs}")
 +		endif()
 +		if (_honoredIncludeDirs)
 +			message (STATUS "Included paths: ${_honoredIncludeDirs}")
 +		endif()
 +	endif()
 +	set (_sourceFiles ${ARGN})
 +	set (_selectedIncludes "")
 +	set (_unparsedLines "")
 +	# stack keeps track of inside/outside project status of processed header files
 +	set (_headerIsInsideStack "")
 +	foreach (_line IN LISTS _scanOutput)
 +		if (_line)
 +			cotire_parse_line("${_line}" _headerFile _headerDepth)
 +			if (_headerFile)
 +				cotire_check_header_file_location("${_headerFile}" "${_ignoredIncludeDirs}" "${_honoredIncludeDirs}" _headerIsInside)
 +				if (COTIRE_DEBUG)
 +					message (STATUS "${_headerDepth}: ${_headerFile} ${_headerIsInside}")
 +				endif()
 +				# update stack
 +				list (LENGTH _headerIsInsideStack _stackLen)
 +				if (_headerDepth GREATER _stackLen)
 +					math (EXPR _stackLen "${_stackLen} + 1")
 +					foreach (_index RANGE ${_stackLen} ${_headerDepth})
 +						list (APPEND _headerIsInsideStack ${_headerIsInside})
 +					endforeach()
 +				else()
 +					foreach (_index RANGE ${_headerDepth} ${_stackLen})
 +						list (REMOVE_AT _headerIsInsideStack -1)
 +					endforeach()
 +					list (APPEND _headerIsInsideStack ${_headerIsInside})
 +				endif()
 +				if (COTIRE_DEBUG)
 +					message (STATUS "${_headerIsInsideStack}")
 +				endif()
 +				# header is a candidate if it is outside project
 +				if (NOT _headerIsInside)
 +					# get parent header file's inside/outside status
 +					if (_headerDepth GREATER 1)
 +						math (EXPR _index "${_headerDepth} - 2")
 +						list (GET _headerIsInsideStack ${_index} _parentHeaderIsInside)
 +					else()
 +						set (_parentHeaderIsInside TRUE)
 +					endif()
 +					# select header file if parent header file is inside project
 +					# (e.g., a project header file that includes a standard header file)
 +					if (_parentHeaderIsInside)
 +						cotire_check_ignore_header_file_path("${_headerFile}" _headerIsIgnored)
 +						if (NOT _headerIsIgnored)
 +							cotire_check_ignore_header_file_ext("${_headerFile}" _ignoredExtensions _headerIsIgnored)
 +							if (NOT _headerIsIgnored)
 +								list (APPEND _selectedIncludes "${_headerFile}")
 +							else()
 +								# fix header's inside status on stack, it is ignored by extension now
 +								list (REMOVE_AT _headerIsInsideStack -1)
 +								list (APPEND _headerIsInsideStack TRUE)
 +							endif()
 +						endif()
 +						if (COTIRE_DEBUG)
 +							message (STATUS "${_headerFile} ${_ignoredExtensions} ${_headerIsIgnored}")
 +						endif()
 +					endif()
 +				endif()
 +			else()
 +				if (MSVC)
 +					# for cl.exe do not keep unparsed lines which solely consist of a source file name
 +					string (FIND "${_sourceFiles}" "${_line}" _index)
 +					if (_index LESS 0)
 +						list (APPEND _unparsedLines "${_line}")
 +					endif()
 +				else()
 +					list (APPEND _unparsedLines "${_line}")
 +				endif()
 +			endif()
 +		endif()
 +	endforeach()
 +	list (REMOVE_DUPLICATES _selectedIncludes)
 +	set (${_selectedIncludesVar} ${_selectedIncludes} PARENT_SCOPE)
 +	set (${_unparsedLinesVar} ${_unparsedLines} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_scan_includes _includesVar)
 +	set(_options "")
 +	set(_oneValueArgs COMPILER_ID COMPILER_EXECUTABLE COMPILER_ARG1 COMPILER_VERSION LANGUAGE UNPARSED_LINES SCAN_RESULT)
 +	set(_multiValueArgs COMPILE_DEFINITIONS COMPILE_FLAGS INCLUDE_DIRECTORIES SYSTEM_INCLUDE_DIRECTORIES
 +		IGNORE_PATH INCLUDE_PATH IGNORE_EXTENSIONS INCLUDE_PRIORITY_PATH COMPILER_LAUNCHER)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	set (_sourceFiles ${_option_UNPARSED_ARGUMENTS})
 +	if (NOT _option_LANGUAGE)
 +		set (_option_LANGUAGE "CXX")
 +	endif()
 +	if (NOT _option_COMPILER_ID)
 +		set (_option_COMPILER_ID "${CMAKE_${_option_LANGUAGE}_ID}")
 +	endif()
 +	if (NOT _option_COMPILER_VERSION)
 +		set (_option_COMPILER_VERSION "${CMAKE_${_option_LANGUAGE}_COMPILER_VERSION}")
 +	endif()
 +	cotire_init_compile_cmd(_cmd "${_option_LANGUAGE}" "${_option_COMPILER_LAUNCHER}" "${_option_COMPILER_EXECUTABLE}" "${_option_COMPILER_ARG1}")
 +	cotire_add_definitions_to_cmd(_cmd "${_option_LANGUAGE}" ${_option_COMPILE_DEFINITIONS})
 +	cotire_add_compile_flags_to_cmd(_cmd ${_option_COMPILE_FLAGS})
 +	cotire_add_includes_to_cmd(_cmd "${_option_LANGUAGE}" _option_INCLUDE_DIRECTORIES _option_SYSTEM_INCLUDE_DIRECTORIES)
 +	cotire_add_frameworks_to_cmd(_cmd "${_option_LANGUAGE}" _option_INCLUDE_DIRECTORIES _option_SYSTEM_INCLUDE_DIRECTORIES)
 +	cotire_add_makedep_flags("${_option_LANGUAGE}" "${_option_COMPILER_ID}" "${_option_COMPILER_VERSION}" _cmd)
 +	# only consider existing source files for scanning
 +	set (_existingSourceFiles "")
 +	foreach (_sourceFile ${_sourceFiles})
 +		if (EXISTS "${_sourceFile}")
 +			list (APPEND _existingSourceFiles "${_sourceFile}")
 +		endif()
 +	endforeach()
 +	if (NOT _existingSourceFiles)
 +		set (${_includesVar} "" PARENT_SCOPE)
 +		return()
 +	endif()
 +	list (APPEND _cmd ${_existingSourceFiles})
 +	if (COTIRE_VERBOSE)
 +		message (STATUS "execute_process: ${_cmd}")
 +	endif()
 +	if (_option_COMPILER_ID MATCHES "MSVC")
 +		# cl.exe messes with the output streams unless the environment variable VS_UNICODE_OUTPUT is cleared
 +		unset (ENV{VS_UNICODE_OUTPUT})
 +	endif()
 +	execute_process(
 +		COMMAND ${_cmd}
 +		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +		RESULT_VARIABLE _result
 +		OUTPUT_QUIET
 +		ERROR_VARIABLE _output)
 +	if (_result)
 +		message (STATUS "Result ${_result} scanning includes of ${_existingSourceFiles}.")
 +	endif()
 +	cotire_parse_includes(
 +		"${_option_LANGUAGE}" "${_output}"
 +		"${_option_IGNORE_PATH}" "${_option_INCLUDE_PATH}"
 +		"${_option_IGNORE_EXTENSIONS}"
 +		_includes _unparsedLines
 +		${_sourceFiles})
 +	if (_option_INCLUDE_PRIORITY_PATH)
 +		set (_sortedIncludes "")
 +		foreach (_priorityPath ${_option_INCLUDE_PRIORITY_PATH})
 +			foreach (_include ${_includes})
 +				string (FIND ${_include} ${_priorityPath} _position)
 +				if (_position GREATER -1)
 +					list (APPEND _sortedIncludes ${_include})
 +				endif()
 +			endforeach()
 +		endforeach()
 +		if (_sortedIncludes)
 +			list (INSERT _includes 0 ${_sortedIncludes})
 +			list (REMOVE_DUPLICATES _includes)
 +		endif()
 +	endif()
 +	set (${_includesVar} ${_includes} PARENT_SCOPE)
 +	if (_option_UNPARSED_LINES)
 +		set (${_option_UNPARSED_LINES} ${_unparsedLines} PARENT_SCOPE)
 +	endif()
 +	if (_option_SCAN_RESULT)
 +		set (${_option_SCAN_RESULT} ${_result} PARENT_SCOPE)
 +	endif()
 +endfunction()
 +
 +macro (cotire_append_undefs _contentsVar)
 +	set (_undefs ${ARGN})
 +	if (_undefs)
 +		list (REMOVE_DUPLICATES _undefs)
 +		foreach (_definition ${_undefs})
 +			list (APPEND ${_contentsVar} "#undef ${_definition}")
 +		endforeach()
 +	endif()
 +endmacro()
 +
 +macro (cotire_comment_str _language _commentText _commentVar)
 +	if ("${_language}" STREQUAL "CMAKE")
 +		set (${_commentVar} "# ${_commentText}")
 +	else()
 +		set (${_commentVar} "/* ${_commentText} */")
 +	endif()
 +endmacro()
 +
 +function (cotire_write_file _language _file _contents _force)
 +	get_filename_component(_moduleName "${COTIRE_CMAKE_MODULE_FILE}" NAME)
 +	cotire_comment_str("${_language}" "${_moduleName} ${COTIRE_CMAKE_MODULE_VERSION} generated file" _header1)
 +	cotire_comment_str("${_language}" "${_file}" _header2)
 +	set (_contents "${_header1}\n${_header2}\n${_contents}")
 +	if (COTIRE_DEBUG)
 +		message (STATUS "${_contents}")
 +	endif()
 +	if (_force OR NOT EXISTS "${_file}")
 +		file (WRITE "${_file}" "${_contents}")
 +	else()
 +		file (READ "${_file}" _oldContents)
 +		if (NOT "${_oldContents}" STREQUAL "${_contents}")
 +			file (WRITE "${_file}" "${_contents}")
 +		else()
 +			if (COTIRE_DEBUG)
 +				message (STATUS "${_file} unchanged")
 +			endif()
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_generate_unity_source _unityFile)
 +	set(_options "")
 +	set(_oneValueArgs LANGUAGE)
 +	set(_multiValueArgs
 +		DEPENDS SOURCES_COMPILE_DEFINITIONS
 +		PRE_UNDEFS SOURCES_PRE_UNDEFS POST_UNDEFS SOURCES_POST_UNDEFS PROLOGUE EPILOGUE)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	if (_option_DEPENDS)
 +		cotire_check_file_up_to_date(_unityFileIsUpToDate "${_unityFile}" ${_option_DEPENDS})
 +		if (_unityFileIsUpToDate)
 +			return()
 +		endif()
 +	endif()
 +	set (_sourceFiles ${_option_UNPARSED_ARGUMENTS})
 +	if (NOT _option_PRE_UNDEFS)
 +		set (_option_PRE_UNDEFS "")
 +	endif()
 +	if (NOT _option_SOURCES_PRE_UNDEFS)
 +		set (_option_SOURCES_PRE_UNDEFS "")
 +	endif()
 +	if (NOT _option_POST_UNDEFS)
 +		set (_option_POST_UNDEFS "")
 +	endif()
 +	if (NOT _option_SOURCES_POST_UNDEFS)
 +		set (_option_SOURCES_POST_UNDEFS "")
 +	endif()
 +	set (_contents "")
 +	if (_option_PROLOGUE)
 +		list (APPEND _contents ${_option_PROLOGUE})
 +	endif()
 +	if (_option_LANGUAGE AND _sourceFiles)
 +		if ("${_option_LANGUAGE}" STREQUAL "CXX")
 +			list (APPEND _contents "#ifdef __cplusplus")
 +		elseif ("${_option_LANGUAGE}" STREQUAL "C")
 +			list (APPEND _contents "#ifndef __cplusplus")
 +		endif()
 +	endif()
 +	set (_compileUndefinitions "")
 +	foreach (_sourceFile ${_sourceFiles})
 +		cotire_get_source_compile_definitions(
 +			"${_option_CONFIGURATION}" "${_option_LANGUAGE}" "${_sourceFile}" _compileDefinitions
 +			${_option_SOURCES_COMPILE_DEFINITIONS})
 +		cotire_get_source_undefs("${_sourceFile}" COTIRE_UNITY_SOURCE_PRE_UNDEFS _sourcePreUndefs ${_option_SOURCES_PRE_UNDEFS})
 +		cotire_get_source_undefs("${_sourceFile}" COTIRE_UNITY_SOURCE_POST_UNDEFS _sourcePostUndefs ${_option_SOURCES_POST_UNDEFS})
 +		if (_option_PRE_UNDEFS)
 +			list (APPEND _compileUndefinitions ${_option_PRE_UNDEFS})
 +		endif()
 +		if (_sourcePreUndefs)
 +			list (APPEND _compileUndefinitions ${_sourcePreUndefs})
 +		endif()
 +		if (_compileUndefinitions)
 +			cotire_append_undefs(_contents ${_compileUndefinitions})
 +			set (_compileUndefinitions "")
 +		endif()
 +		if (_sourcePostUndefs)
 +			list (APPEND _compileUndefinitions ${_sourcePostUndefs})
 +		endif()
 +		if (_option_POST_UNDEFS)
 +			list (APPEND _compileUndefinitions ${_option_POST_UNDEFS})
 +		endif()
 +		foreach (_definition ${_compileDefinitions})
 +			if (_definition MATCHES "^([a-zA-Z0-9_]+)=(.+)$")
 +				list (APPEND _contents "#define ${CMAKE_MATCH_1} ${CMAKE_MATCH_2}")
 +				list (INSERT _compileUndefinitions 0 "${CMAKE_MATCH_1}")
 +			else()
 +				list (APPEND _contents "#define ${_definition}")
 +				list (INSERT _compileUndefinitions 0 "${_definition}")
 +			endif()
 +		endforeach()
 +		# use absolute path as source file location
 +		get_filename_component(_sourceFileLocation "${_sourceFile}" ABSOLUTE)
 +		if (WIN32)
 +			file (TO_NATIVE_PATH "${_sourceFileLocation}" _sourceFileLocation)
 +		endif()
 +		list (APPEND _contents "#include \"${_sourceFileLocation}\"")
 +	endforeach()
 +	if (_compileUndefinitions)
 +		cotire_append_undefs(_contents ${_compileUndefinitions})
 +		set (_compileUndefinitions "")
 +	endif()
 +	if (_option_LANGUAGE AND _sourceFiles)
 +		list (APPEND _contents "#endif")
 +	endif()
 +	if (_option_EPILOGUE)
 +		list (APPEND _contents ${_option_EPILOGUE})
 +	endif()
 +	list (APPEND _contents "")
 +	string (REPLACE ";" "\n" _contents "${_contents}")
 +	if (COTIRE_VERBOSE)
 +		message ("${_contents}")
 +	endif()
 +	cotire_write_file("${_option_LANGUAGE}" "${_unityFile}" "${_contents}" TRUE)
 +endfunction()
 +
 +function (cotire_generate_prefix_header _prefixFile)
 +	set(_options "")
 +	set(_oneValueArgs LANGUAGE COMPILER_EXECUTABLE COMPILER_ARG1 COMPILER_ID COMPILER_VERSION)
 +	set(_multiValueArgs DEPENDS COMPILE_DEFINITIONS COMPILE_FLAGS
 +		INCLUDE_DIRECTORIES SYSTEM_INCLUDE_DIRECTORIES IGNORE_PATH INCLUDE_PATH
 +		IGNORE_EXTENSIONS INCLUDE_PRIORITY_PATH COMPILER_LAUNCHER)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	if (NOT _option_COMPILER_ID)
 +		set (_option_COMPILER_ID "${CMAKE_${_option_LANGUAGE}_ID}")
 +	endif()
 +	if (NOT _option_COMPILER_VERSION)
 +		set (_option_COMPILER_VERSION "${CMAKE_${_option_LANGUAGE}_COMPILER_VERSION}")
 +	endif()
 +	if (_option_DEPENDS)
 +		cotire_check_file_up_to_date(_prefixFileIsUpToDate "${_prefixFile}" ${_option_DEPENDS})
 +		if (_prefixFileIsUpToDate)
 +			# create empty log file
 +			set (_unparsedLinesFile "${_prefixFile}.log")
 +			file (WRITE "${_unparsedLinesFile}" "")
 +			return()
 +		endif()
 +	endif()
 +	set (_prologue "")
 +	set (_epilogue "")
 +	if (_option_COMPILER_ID MATCHES "Clang")
 +		set (_prologue "#pragma clang system_header")
 +	elseif (_option_COMPILER_ID MATCHES "GNU")
 +		set (_prologue "#pragma GCC system_header")
 +	elseif (_option_COMPILER_ID MATCHES "MSVC")
 +		set (_prologue "#pragma warning(push, 0)")
 +		set (_epilogue "#pragma warning(pop)")
 +	elseif (_option_COMPILER_ID MATCHES "Intel")
 +		# Intel compiler requires hdrstop pragma to stop generating PCH file
 +		set (_epilogue "#pragma hdrstop")
 +	endif()
 +	set (_sourceFiles ${_option_UNPARSED_ARGUMENTS})
 +	cotire_scan_includes(_selectedHeaders ${_sourceFiles}
 +		LANGUAGE "${_option_LANGUAGE}"
 +		COMPILER_LAUNCHER "${_option_COMPILER_LAUNCHER}"
 +		COMPILER_EXECUTABLE "${_option_COMPILER_EXECUTABLE}"
 +		COMPILER_ARG1 "${_option_COMPILER_ARG1}"
 +		COMPILER_ID "${_option_COMPILER_ID}"
 +		COMPILER_VERSION "${_option_COMPILER_VERSION}"
 +		COMPILE_DEFINITIONS ${_option_COMPILE_DEFINITIONS}
 +		COMPILE_FLAGS ${_option_COMPILE_FLAGS}
 +		INCLUDE_DIRECTORIES ${_option_INCLUDE_DIRECTORIES}
 +		SYSTEM_INCLUDE_DIRECTORIES ${_option_SYSTEM_INCLUDE_DIRECTORIES}
 +		IGNORE_PATH ${_option_IGNORE_PATH}
 +		INCLUDE_PATH ${_option_INCLUDE_PATH}
 +		IGNORE_EXTENSIONS ${_option_IGNORE_EXTENSIONS}
 +		INCLUDE_PRIORITY_PATH ${_option_INCLUDE_PRIORITY_PATH}
 +		UNPARSED_LINES _unparsedLines
 +		SCAN_RESULT _scanResult)
 +	cotire_generate_unity_source("${_prefixFile}"
 +		PROLOGUE ${_prologue} EPILOGUE ${_epilogue} LANGUAGE "${_option_LANGUAGE}" ${_selectedHeaders})
 +	set (_unparsedLinesFile "${_prefixFile}.log")
 +	if (_unparsedLines)
 +		if (COTIRE_VERBOSE OR _scanResult OR NOT _selectedHeaders)
 +			list (LENGTH _unparsedLines _skippedLineCount)
 +			message (STATUS "${_skippedLineCount} line(s) skipped, see ${_unparsedLinesFile}")
 +		endif()
 +		string (REPLACE ";" "\n" _unparsedLines "${_unparsedLines}")
 +	endif()
 +	file (WRITE "${_unparsedLinesFile}" "${_unparsedLines}")
 +endfunction()
 +
 +function (cotire_add_makedep_flags _language _compilerID _compilerVersion _flagsVar)
 +	set (_flags ${${_flagsVar}})
 +	if (_compilerID MATCHES "MSVC")
 +		# cl.exe options used
 +		# /nologo suppresses display of sign-on banner
 +		# /TC treat all files named on the command line as C source files
 +		# /TP treat all files named on the command line as C++ source files
 +		# /EP preprocess to stdout without #line directives
 +		# /showIncludes list include files
 +		set (_sourceFileTypeC "/TC")
 +		set (_sourceFileTypeCXX "/TP")
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags /nologo "${_sourceFileType${_language}}" /EP /showIncludes)
 +		else()
 +			# return as a flag string
 +			set (_flags "${_sourceFileType${_language}} /EP /showIncludes")
 +		endif()
 +	elseif (_compilerID MATCHES "GNU")
 +		# GCC options used
 +		# -H print the name of each header file used
 +		# -E invoke preprocessor
 +		# -fdirectives-only do not expand macros, requires GCC >= 4.3
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags -H -E)
 +			if (NOT "${_compilerVersion}" VERSION_LESS "4.3.0")
 +				list (APPEND _flags "-fdirectives-only")
 +			endif()
 +		else()
 +			# return as a flag string
 +			set (_flags "-H -E")
 +			if (NOT "${_compilerVersion}" VERSION_LESS "4.3.0")
 +				set (_flags "${_flags} -fdirectives-only")
 +			endif()
 +		endif()
 +	elseif (_compilerID MATCHES "Clang")
 +		# Clang options used
 +		# -H print the name of each header file used
 +		# -E invoke preprocessor
 +		# -fno-color-diagnostics don't prints diagnostics in color
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags -H -E -fno-color-diagnostics)
 +		else()
 +			# return as a flag string
 +			set (_flags "-H -E -fno-color-diagnostics")
 +		endif()
 +	elseif (_compilerID MATCHES "Intel")
 +		if (WIN32)
 +			# Windows Intel options used
 +			# /nologo do not display compiler version information
 +			# /QH display the include file order
 +			# /EP preprocess to stdout, omitting #line directives
 +			# /TC process all source or unrecognized file types as C source files
 +			# /TP process all source or unrecognized file types as C++ source files
 +			set (_sourceFileTypeC "/TC")
 +			set (_sourceFileTypeCXX "/TP")
 +			if (_flags)
 +				# append to list
 +				list (APPEND _flags /nologo "${_sourceFileType${_language}}" /EP /QH)
 +			else()
 +				# return as a flag string
 +				set (_flags "${_sourceFileType${_language}} /EP /QH")
 +			endif()
 +		else()
 +			# Linux / Mac OS X Intel options used
 +			# -H print the name of each header file used
 +			# -EP preprocess to stdout, omitting #line directives
 +			# -Kc++ process all source or unrecognized file types as C++ source files
 +			if (_flags)
 +				# append to list
 +				if ("${_language}" STREQUAL "CXX")
 +					list (APPEND _flags -Kc++)
 +				endif()
 +				list (APPEND _flags -H -EP)
 +			else()
 +				# return as a flag string
 +				if ("${_language}" STREQUAL "CXX")
 +					set (_flags "-Kc++ ")
 +				endif()
 +				set (_flags "${_flags}-H -EP")
 +			endif()
 +		endif()
 +	else()
 +		message (FATAL_ERROR "cotire: unsupported ${_language} compiler ${_compilerID} version ${_compilerVersion}.")
 +	endif()
 +	set (${_flagsVar} ${_flags} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_add_pch_compilation_flags _language _compilerID _compilerVersion _prefixFile _pchFile _hostFile _flagsVar)
 +	set (_flags ${${_flagsVar}})
 +	if (_compilerID MATCHES "MSVC")
 +		file (TO_NATIVE_PATH "${_prefixFile}" _prefixFileNative)
 +		file (TO_NATIVE_PATH "${_pchFile}" _pchFileNative)
 +		file (TO_NATIVE_PATH "${_hostFile}" _hostFileNative)
 +		# cl.exe options used
 +		# /Yc creates a precompiled header file
 +		# /Fp specifies precompiled header binary file name
 +		# /FI forces inclusion of file
 +		# /TC treat all files named on the command line as C source files
 +		# /TP treat all files named on the command line as C++ source files
 +		# /Zs syntax check only
 +		# /Zm precompiled header memory allocation scaling factor
 +		set (_sourceFileTypeC "/TC")
 +		set (_sourceFileTypeCXX "/TP")
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags /nologo "${_sourceFileType${_language}}"
 +				"/Yc${_prefixFileNative}" "/Fp${_pchFileNative}" "/FI${_prefixFileNative}" /Zs "${_hostFileNative}")
 +			if (COTIRE_PCH_MEMORY_SCALING_FACTOR)
 +				list (APPEND _flags "/Zm${COTIRE_PCH_MEMORY_SCALING_FACTOR}")
 +			endif()
 +		else()
 +			# return as a flag string
 +			set (_flags "/Yc\"${_prefixFileNative}\" /Fp\"${_pchFileNative}\" /FI\"${_prefixFileNative}\"")
 +			if (COTIRE_PCH_MEMORY_SCALING_FACTOR)
 +				set (_flags "${_flags} /Zm${COTIRE_PCH_MEMORY_SCALING_FACTOR}")
 +			endif()
 +		endif()
 +	elseif (_compilerID MATCHES "GNU|Clang")
 +		# GCC / Clang options used
 +		# -x specify the source language
 +		# -c compile but do not link
 +		# -o place output in file
 +		# note that we cannot use -w to suppress all warnings upon pre-compiling, because turning off a warning may
 +		# alter compile flags as a side effect (e.g., -Wwrite-string implies -fconst-strings)
 +		set (_xLanguage_C "c-header")
 +		set (_xLanguage_CXX "c++-header")
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags "-x" "${_xLanguage_${_language}}" "-c" "${_prefixFile}" -o "${_pchFile}")
 +		else()
 +			# return as a flag string
 +			set (_flags "-x ${_xLanguage_${_language}} -c \"${_prefixFile}\" -o \"${_pchFile}\"")
 +		endif()
 +	elseif (_compilerID MATCHES "Intel")
 +		if (WIN32)
 +			file (TO_NATIVE_PATH "${_prefixFile}" _prefixFileNative)
 +			file (TO_NATIVE_PATH "${_pchFile}" _pchFileNative)
 +			file (TO_NATIVE_PATH "${_hostFile}" _hostFileNative)
 +			# Windows Intel options used
 +			# /nologo do not display compiler version information
 +			# /Yc create a precompiled header (PCH) file
 +			# /Fp specify a path or file name for precompiled header files
 +			# /FI tells the preprocessor to include a specified file name as the header file
 +			# /TC process all source or unrecognized file types as C source files
 +			# /TP process all source or unrecognized file types as C++ source files
 +			# /Zs syntax check only
 +			# /Wpch-messages enable diagnostics related to pre-compiled headers (requires Intel XE 2013 Update 2)
 +			set (_sourceFileTypeC "/TC")
 +			set (_sourceFileTypeCXX "/TP")
 +			if (_flags)
 +				# append to list
 +				list (APPEND _flags /nologo "${_sourceFileType${_language}}"
 +					"/Yc" "/Fp${_pchFileNative}" "/FI${_prefixFileNative}" /Zs "${_hostFileNative}")
 +				if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +					list (APPEND _flags "/Wpch-messages")
 +				endif()
 +			else()
 +				# return as a flag string
 +				set (_flags "/Yc /Fp\"${_pchFileNative}\" /FI\"${_prefixFileNative}\"")
 +				if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +					set (_flags "${_flags} /Wpch-messages")
 +				endif()
 +			endif()
 +		else()
 +			# Linux / Mac OS X Intel options used
 +			# -pch-dir location for precompiled header files
 +			# -pch-create name of the precompiled header (PCH) to create
 +			# -Kc++ process all source or unrecognized file types as C++ source files
 +			# -fsyntax-only check only for correct syntax
 +			# -Wpch-messages enable diagnostics related to pre-compiled headers (requires Intel XE 2013 Update 2)
 +			get_filename_component(_pchDir "${_pchFile}" DIRECTORY)
 +			get_filename_component(_pchName "${_pchFile}" NAME)
 +			set (_xLanguage_C "c-header")
 +			set (_xLanguage_CXX "c++-header")
 +			set (_pchSuppressMessages FALSE)
 +			if ("${CMAKE_${_language}_FLAGS}" MATCHES ".*-Wno-pch-messages.*")
 +				set(_pchSuppressMessages TRUE)
 +			endif()
 +			if (_flags)
 +				# append to list
 +				if ("${_language}" STREQUAL "CXX")
 +					list (APPEND _flags -Kc++)
 +				endif()
 +				list (APPEND _flags "-include" "${_prefixFile}" "-pch-dir" "${_pchDir}" "-pch-create" "${_pchName}" "-fsyntax-only" "${_hostFile}")
 +				if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +					if (NOT _pchSuppressMessages)
 +						list (APPEND _flags "-Wpch-messages")
 +					endif()
 +				endif()
 +			else()
 +				# return as a flag string
 +				set (_flags "-include \"${_prefixFile}\" -pch-dir \"${_pchDir}\" -pch-create \"${_pchName}\"")
 +				if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +					if (NOT _pchSuppressMessages)
 +						set (_flags "${_flags} -Wpch-messages")
 +					endif()
 +				endif()
 +			endif()
 +		endif()
 +	else()
 +		message (FATAL_ERROR "cotire: unsupported ${_language} compiler ${_compilerID} version ${_compilerVersion}.")
 +	endif()
 +	set (${_flagsVar} ${_flags} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_add_prefix_pch_inclusion_flags _language _compilerID _compilerVersion _prefixFile _pchFile _flagsVar)
 +	set (_flags ${${_flagsVar}})
 +	if (_compilerID MATCHES "MSVC")
 +		file (TO_NATIVE_PATH "${_prefixFile}" _prefixFileNative)
 +		# cl.exe options used
 +		# /Yu uses a precompiled header file during build
 +		# /Fp specifies precompiled header binary file name
 +		# /FI forces inclusion of file
 +		# /Zm precompiled header memory allocation scaling factor
 +		if (_pchFile)
 +			file (TO_NATIVE_PATH "${_pchFile}" _pchFileNative)
 +			if (_flags)
 +				# append to list
 +				list (APPEND _flags "/Yu${_prefixFileNative}" "/Fp${_pchFileNative}" "/FI${_prefixFileNative}")
 +				if (COTIRE_PCH_MEMORY_SCALING_FACTOR)
 +					list (APPEND _flags "/Zm${COTIRE_PCH_MEMORY_SCALING_FACTOR}")
 +				endif()
 +			else()
 +				# return as a flag string
 +				set (_flags "/Yu\"${_prefixFileNative}\" /Fp\"${_pchFileNative}\" /FI\"${_prefixFileNative}\"")
 +				if (COTIRE_PCH_MEMORY_SCALING_FACTOR)
 +					set (_flags "${_flags} /Zm${COTIRE_PCH_MEMORY_SCALING_FACTOR}")
 +				endif()
 +			endif()
 +		else()
 +			# no precompiled header, force inclusion of prefix header
 +			if (_flags)
 +				# append to list
 +				list (APPEND _flags "/FI${_prefixFileNative}")
 +			else()
 +				# return as a flag string
 +				set (_flags "/FI\"${_prefixFileNative}\"")
 +			endif()
 +		endif()
 +	elseif (_compilerID MATCHES "GNU")
 +		# GCC options used
 +		# -include process include file as the first line of the primary source file
 +		# -Winvalid-pch warns if precompiled header is found but cannot be used
 +		# note: ccache requires the -include flag to be used in order to process precompiled header correctly
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags "-Winvalid-pch" "-include" "${_prefixFile}")
 +		else()
 +			# return as a flag string
 +			set (_flags "-Winvalid-pch -include \"${_prefixFile}\"")
 +		endif()
 +	elseif (_compilerID MATCHES "Clang")
 +		# Clang options used
 +		# -include process include file as the first line of the primary source file
 +		# -include-pch include precompiled header file
 +		# -Qunused-arguments don't emit warning for unused driver arguments
 +		# note: ccache requires the -include flag to be used in order to process precompiled header correctly
 +		if (_flags)
 +			# append to list
 +			list (APPEND _flags "-Qunused-arguments" "-include" "${_prefixFile}")
 +		else()
 +			# return as a flag string
 +			set (_flags "-Qunused-arguments -include \"${_prefixFile}\"")
 +		endif()
 +	elseif (_compilerID MATCHES "Intel")
 +		if (WIN32)
 +			file (TO_NATIVE_PATH "${_prefixFile}" _prefixFileNative)
 +			# Windows Intel options used
 +			# /Yu use a precompiled header (PCH) file
 +			# /Fp specify a path or file name for precompiled header files
 +			# /FI tells the preprocessor to include a specified file name as the header file
 +			# /Wpch-messages enable diagnostics related to pre-compiled headers (requires Intel XE 2013 Update 2)
 +			if (_pchFile)
 +				file (TO_NATIVE_PATH "${_pchFile}" _pchFileNative)
 +				if (_flags)
 +					# append to list
 +					list (APPEND _flags "/Yu" "/Fp${_pchFileNative}" "/FI${_prefixFileNative}")
 +					if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +						list (APPEND _flags "/Wpch-messages")
 +					endif()
 +				else()
 +					# return as a flag string
 +					set (_flags "/Yu /Fp\"${_pchFileNative}\" /FI\"${_prefixFileNative}\"")
 +					if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +						set (_flags "${_flags} /Wpch-messages")
 +					endif()
 +				endif()
 +			else()
 +				# no precompiled header, force inclusion of prefix header
 +				if (_flags)
 +					# append to list
 +					list (APPEND _flags "/FI${_prefixFileNative}")
 +				else()
 +					# return as a flag string
 +					set (_flags "/FI\"${_prefixFileNative}\"")
 +				endif()
 +			endif()
 +		else()
 +			# Linux / Mac OS X Intel options used
 +			# -pch-dir location for precompiled header files
 +			# -pch-use name of the precompiled header (PCH) to use
 +			# -include process include file as the first line of the primary source file
 +			# -Wpch-messages enable diagnostics related to pre-compiled headers (requires Intel XE 2013 Update 2)
 +			if (_pchFile)
 +				get_filename_component(_pchDir "${_pchFile}" DIRECTORY)
 +				get_filename_component(_pchName "${_pchFile}" NAME)
 +				set (_pchSuppressMessages FALSE)
 +				if ("${CMAKE_${_language}_FLAGS}" MATCHES ".*-Wno-pch-messages.*")
 +					set(_pchSuppressMessages TRUE)
 +				endif()
 +				if (_flags)
 +					# append to list
 +					list (APPEND _flags "-include" "${_prefixFile}" "-pch-dir" "${_pchDir}" "-pch-use" "${_pchName}")
 +					if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +						if (NOT _pchSuppressMessages)
 +							list (APPEND _flags "-Wpch-messages")
 +						endif()
 +					endif()
 +				else()
 +					# return as a flag string
 +					set (_flags "-include \"${_prefixFile}\" -pch-dir \"${_pchDir}\" -pch-use \"${_pchName}\"")
 +					if (NOT "${_compilerVersion}" VERSION_LESS "13.1.0")
 +						if (NOT _pchSuppressMessages)
 +							set (_flags "${_flags} -Wpch-messages")
 +						endif()
 +					endif()
 +				endif()
 +			else()
 +				# no precompiled header, force inclusion of prefix header
 +				if (_flags)
 +					# append to list
 +					list (APPEND _flags "-include" "${_prefixFile}")
 +				else()
 +					# return as a flag string
 +					set (_flags "-include \"${_prefixFile}\"")
 +				endif()
 +			endif()
 +		endif()
 +	else()
 +		message (FATAL_ERROR "cotire: unsupported ${_language} compiler ${_compilerID} version ${_compilerVersion}.")
 +	endif()
 +	set (${_flagsVar} ${_flags} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_precompile_prefix_header _prefixFile _pchFile _hostFile)
 +	set(_options "")
 +	set(_oneValueArgs COMPILER_EXECUTABLE COMPILER_ARG1 COMPILER_ID COMPILER_VERSION LANGUAGE)
 +	set(_multiValueArgs COMPILE_DEFINITIONS COMPILE_FLAGS INCLUDE_DIRECTORIES SYSTEM_INCLUDE_DIRECTORIES SYS COMPILER_LAUNCHER)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	if (NOT _option_LANGUAGE)
 +		set (_option_LANGUAGE "CXX")
 +	endif()
 +	if (NOT _option_COMPILER_ID)
 +		set (_option_COMPILER_ID "${CMAKE_${_option_LANGUAGE}_ID}")
 +	endif()
 +	if (NOT _option_COMPILER_VERSION)
 +		set (_option_COMPILER_VERSION "${CMAKE_${_option_LANGUAGE}_COMPILER_VERSION}")
 +	endif()
 +	cotire_init_compile_cmd(_cmd "${_option_LANGUAGE}" "${_option_COMPILER_LAUNCHER}" "${_option_COMPILER_EXECUTABLE}" "${_option_COMPILER_ARG1}")
 +	cotire_add_definitions_to_cmd(_cmd "${_option_LANGUAGE}" ${_option_COMPILE_DEFINITIONS})
 +	cotire_add_compile_flags_to_cmd(_cmd ${_option_COMPILE_FLAGS})
 +	cotire_add_includes_to_cmd(_cmd "${_option_LANGUAGE}" _option_INCLUDE_DIRECTORIES _option_SYSTEM_INCLUDE_DIRECTORIES)
 +	cotire_add_frameworks_to_cmd(_cmd "${_option_LANGUAGE}" _option_INCLUDE_DIRECTORIES _option_SYSTEM_INCLUDE_DIRECTORIES)
 +	cotire_add_pch_compilation_flags(
 +		"${_option_LANGUAGE}" "${_option_COMPILER_ID}" "${_option_COMPILER_VERSION}"
 +		"${_prefixFile}" "${_pchFile}" "${_hostFile}" _cmd)
 +	if (COTIRE_VERBOSE)
 +		message (STATUS "execute_process: ${_cmd}")
 +	endif()
 +	if (_option_COMPILER_ID MATCHES "MSVC")
 +		# cl.exe messes with the output streams unless the environment variable VS_UNICODE_OUTPUT is cleared
 +		unset (ENV{VS_UNICODE_OUTPUT})
 +	elseif (_option_COMPILER_ID MATCHES "GNU|Clang")
 +		if (_option_COMPILER_LAUNCHER MATCHES "ccache" OR
 +			_option_COMPILER_EXECUTABLE MATCHES "ccache")
 +			# Newer versions of Clang and GCC seem to embed a compilation timestamp into the precompiled header binary,
 +			# which results in "file has been modified since the precompiled header was built" errors if ccache is used.
 +			# We work around the problem by disabling ccache upon pre-compiling the prefix header.
 +			set (ENV{CCACHE_DISABLE} "true")
 +		endif()
 +	endif()
 +	execute_process(
 +		COMMAND ${_cmd}
 +		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +		RESULT_VARIABLE _result)
 +	if (_result)
 +		message (FATAL_ERROR "cotire: error ${_result} precompiling ${_prefixFile}.")
 +	endif()
 +endfunction()
 +
 +function (cotire_check_precompiled_header_support _language _target _msgVar)
 +	set (_unsupportedCompiler
 +		"Precompiled headers not supported for ${_language} compiler ${CMAKE_${_language}_COMPILER_ID}")
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "MSVC")
 +		# supported since Visual Studio C++ 6.0
 +		# and CMake does not support an earlier version
 +		set (${_msgVar} "" PARENT_SCOPE)
 +	elseif (CMAKE_${_language}_COMPILER_ID MATCHES "GNU")
 +		# GCC PCH support requires version >= 3.4
 +		if ("${CMAKE_${_language}_COMPILER_VERSION}" VERSION_LESS "3.4.0")
 +			set (${_msgVar} "${_unsupportedCompiler} version ${CMAKE_${_language}_COMPILER_VERSION}." PARENT_SCOPE)
 +		else()
 +			set (${_msgVar} "" PARENT_SCOPE)
 +		endif()
 +	elseif (CMAKE_${_language}_COMPILER_ID MATCHES "Clang")
 +		# all Clang versions have PCH support
 +		set (${_msgVar} "" PARENT_SCOPE)
 +	elseif (CMAKE_${_language}_COMPILER_ID MATCHES "Intel")
 +		# Intel PCH support requires version >= 8.0.0
 +		if ("${CMAKE_${_language}_COMPILER_VERSION}" VERSION_LESS "8.0.0")
 +			set (${_msgVar} "${_unsupportedCompiler} version ${CMAKE_${_language}_COMPILER_VERSION}." PARENT_SCOPE)
 +		else()
 +			set (${_msgVar} "" PARENT_SCOPE)
 +		endif()
 +	else()
 +		set (${_msgVar} "${_unsupportedCompiler}." PARENT_SCOPE)
 +	endif()
 +	get_target_property(_launcher ${_target} ${_language}_COMPILER_LAUNCHER)
 +	if (CMAKE_${_language}_COMPILER MATCHES "ccache" OR _launcher MATCHES "ccache")
 +		if (DEFINED ENV{CCACHE_SLOPPINESS})
 +			if (NOT "$ENV{CCACHE_SLOPPINESS}" MATCHES "pch_defines" OR NOT "$ENV{CCACHE_SLOPPINESS}" MATCHES "time_macros")
 +				set (${_msgVar}
 +					"ccache requires the environment variable CCACHE_SLOPPINESS to be set to \"pch_defines,time_macros\"."
 +					PARENT_SCOPE)
 +			endif()
 +		else()
 +			if (_launcher MATCHES "ccache")
 +				get_filename_component(_ccacheExe "${_launcher}" REALPATH)
 +			else()
 +				get_filename_component(_ccacheExe "${CMAKE_${_language}_COMPILER}" REALPATH)
 +			endif()
 +			execute_process(
 +				COMMAND "${_ccacheExe}" "--print-config"
 +				WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
 +				RESULT_VARIABLE _result
 +				OUTPUT_VARIABLE _ccacheConfig OUTPUT_STRIP_TRAILING_WHITESPACE
 +				ERROR_QUIET)
 +			if (_result OR NOT
 +				_ccacheConfig MATCHES "sloppiness.*=.*time_macros" OR NOT
 +				_ccacheConfig MATCHES "sloppiness.*=.*pch_defines")
 +				set (${_msgVar}
 +					"ccache requires configuration setting \"sloppiness\" to be set to \"pch_defines,time_macros\"."
 +					PARENT_SCOPE)
 +			endif()
 +		endif()
 +	endif()
 +	if (APPLE)
 +		# PCH compilation not supported by GCC / Clang for multi-architecture builds (e.g., i386, x86_64)
 +		cotire_get_configuration_types(_configs)
 +		foreach (_config ${_configs})
 +			set (_targetFlags "")
 +			cotire_get_target_compile_flags("${_config}" "${_language}" "${_target}" _targetFlags)
 +			cotire_filter_compile_flags("${_language}" "arch" _architectures _ignore ${_targetFlags})
 +			list (LENGTH _architectures _numberOfArchitectures)
 +			if (_numberOfArchitectures GREATER 1)
 +				string (REPLACE ";" ", " _architectureStr "${_architectures}")
 +				set (${_msgVar}
 +					"Precompiled headers not supported on Darwin for multi-architecture builds (${_architectureStr})."
 +					PARENT_SCOPE)
 +				break()
 +			endif()
 +		endforeach()
 +	endif()
 +endfunction()
 +
 +macro (cotire_get_intermediate_dir _cotireDir)
 +	# ${CMAKE_CFG_INTDIR} may reference a build-time variable when using a generator which supports configuration types
 +	get_filename_component(${_cotireDir} "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${COTIRE_INTDIR}" ABSOLUTE)
 +endmacro()
 +
 +macro (cotire_setup_file_extension_variables)
 +	set (_unityFileExt_C ".c")
 +	set (_unityFileExt_CXX ".cxx")
 +	set (_prefixFileExt_C ".h")
 +	set (_prefixFileExt_CXX ".hxx")
 +	set (_prefixSourceFileExt_C ".c")
 +	set (_prefixSourceFileExt_CXX ".cxx")
 +endmacro()
 +
 +function (cotire_make_single_unity_source_file_path _language _target _unityFileVar)
 +	cotire_setup_file_extension_variables()
 +	if (NOT DEFINED _unityFileExt_${_language})
 +		set (${_unityFileVar} "" PARENT_SCOPE)
 +		return()
 +	endif()
 +	set (_unityFileBaseName "${_target}_${_language}${COTIRE_UNITY_SOURCE_FILENAME_SUFFIX}")
 +	set (_unityFileName "${_unityFileBaseName}${_unityFileExt_${_language}}")
 +	cotire_get_intermediate_dir(_baseDir)
 +	set (_unityFile "${_baseDir}/${_unityFileName}")
 +	set (${_unityFileVar} "${_unityFile}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_make_unity_source_file_paths _language _target _maxIncludes _unityFilesVar)
 +	cotire_setup_file_extension_variables()
 +	if (NOT DEFINED _unityFileExt_${_language})
 +		set (${_unityFileVar} "" PARENT_SCOPE)
 +		return()
 +	endif()
 +	set (_unityFileBaseName "${_target}_${_language}${COTIRE_UNITY_SOURCE_FILENAME_SUFFIX}")
 +	cotire_get_intermediate_dir(_baseDir)
 +	set (_startIndex 0)
 +	set (_index 0)
 +	set (_unityFiles "")
 +	set (_sourceFiles ${ARGN})
 +	foreach (_sourceFile ${_sourceFiles})
 +		get_source_file_property(_startNew "${_sourceFile}" COTIRE_START_NEW_UNITY_SOURCE)
 +		math (EXPR _unityFileCount "${_index} - ${_startIndex}")
 +		if (_startNew OR (_maxIncludes GREATER 0 AND NOT _unityFileCount LESS _maxIncludes))
 +			if (_index GREATER 0)
 +				# start new unity file segment
 +				math (EXPR _endIndex "${_index} - 1")
 +				set (_unityFileName "${_unityFileBaseName}_${_startIndex}_${_endIndex}${_unityFileExt_${_language}}")
 +				list (APPEND _unityFiles "${_baseDir}/${_unityFileName}")
 +			endif()
 +			set (_startIndex ${_index})
 +		endif()
 +		math (EXPR _index "${_index} + 1")
 +	endforeach()
 +	list (LENGTH _sourceFiles _numberOfSources)
 +	if (_startIndex EQUAL 0)
 +		# there is only a single unity file
 +		cotire_make_single_unity_source_file_path(${_language} ${_target} _unityFiles)
 +	elseif (_startIndex LESS _numberOfSources)
 +		# end with final unity file segment
 +		math (EXPR _endIndex "${_index} - 1")
 +		set (_unityFileName "${_unityFileBaseName}_${_startIndex}_${_endIndex}${_unityFileExt_${_language}}")
 +		list (APPEND _unityFiles "${_baseDir}/${_unityFileName}")
 +	endif()
 +	set (${_unityFilesVar} ${_unityFiles} PARENT_SCOPE)
 +	if (COTIRE_DEBUG AND _unityFiles)
 +		message (STATUS "unity files: ${_unityFiles}")
 +	endif()
 +endfunction()
 +
 +function (cotire_unity_to_prefix_file_path _language _target _unityFile _prefixFileVar)
 +	cotire_setup_file_extension_variables()
 +	if (NOT DEFINED _unityFileExt_${_language})
 +		set (${_prefixFileVar} "" PARENT_SCOPE)
 +		return()
 +	endif()
 +	set (_unityFileBaseName "${_target}_${_language}${COTIRE_UNITY_SOURCE_FILENAME_SUFFIX}")
 +	set (_prefixFileBaseName "${_target}_${_language}${COTIRE_PREFIX_HEADER_FILENAME_SUFFIX}")
 +	string (REPLACE "${_unityFileBaseName}" "${_prefixFileBaseName}" _prefixFile "${_unityFile}")
 +	string (REGEX REPLACE "${_unityFileExt_${_language}}$" "${_prefixFileExt_${_language}}" _prefixFile "${_prefixFile}")
 +	set (${_prefixFileVar} "${_prefixFile}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_prefix_header_to_source_file_path _language _prefixHeaderFile _prefixSourceFileVar)
 +	cotire_setup_file_extension_variables()
 +	if (NOT DEFINED _prefixSourceFileExt_${_language})
 +		set (${_prefixSourceFileVar} "" PARENT_SCOPE)
 +		return()
 +	endif()
 +	string (REGEX REPLACE "${_prefixFileExt_${_language}}$" "${_prefixSourceFileExt_${_language}}" _prefixSourceFile "${_prefixHeaderFile}")
 +	set (${_prefixSourceFileVar} "${_prefixSourceFile}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_make_prefix_file_name _language _target _prefixFileBaseNameVar _prefixFileNameVar)
 +	cotire_setup_file_extension_variables()
 +	if (NOT _language)
 +		set (_prefixFileBaseName "${_target}${COTIRE_PREFIX_HEADER_FILENAME_SUFFIX}")
 +		set (_prefixFileName "${_prefixFileBaseName}${_prefixFileExt_C}")
 +	elseif (DEFINED _prefixFileExt_${_language})
 +		set (_prefixFileBaseName "${_target}_${_language}${COTIRE_PREFIX_HEADER_FILENAME_SUFFIX}")
 +		set (_prefixFileName "${_prefixFileBaseName}${_prefixFileExt_${_language}}")
 +	else()
 +		set (_prefixFileBaseName "")
 +		set (_prefixFileName "")
 +	endif()
 +	set (${_prefixFileBaseNameVar} "${_prefixFileBaseName}" PARENT_SCOPE)
 +	set (${_prefixFileNameVar} "${_prefixFileName}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_make_prefix_file_path _language _target _prefixFileVar)
 +	cotire_make_prefix_file_name("${_language}" "${_target}" _prefixFileBaseName _prefixFileName)
 +	set (${_prefixFileVar} "" PARENT_SCOPE)
 +	if (_prefixFileName)
 +		if (NOT _language)
 +			set (_language "C")
 +		endif()
 +		if (CMAKE_${_language}_COMPILER_ID MATCHES "GNU|Clang|Intel|MSVC")
 +			cotire_get_intermediate_dir(_baseDir)
 +			set (${_prefixFileVar} "${_baseDir}/${_prefixFileName}" PARENT_SCOPE)
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_make_pch_file_path _language _target _pchFileVar)
 +	cotire_make_prefix_file_name("${_language}" "${_target}" _prefixFileBaseName _prefixFileName)
 +	set (${_pchFileVar} "" PARENT_SCOPE)
 +	if (_prefixFileBaseName AND _prefixFileName)
 +		cotire_check_precompiled_header_support("${_language}" "${_target}" _msg)
 +		if (NOT _msg)
 +			if (XCODE)
 +				# For Xcode, we completely hand off the compilation of the prefix header to the IDE
 +				return()
 +			endif()
 +			cotire_get_intermediate_dir(_baseDir)
 +			if (CMAKE_${_language}_COMPILER_ID MATCHES "MSVC")
 +				# MSVC uses the extension .pch added to the prefix header base name
 +				set (${_pchFileVar} "${_baseDir}/${_prefixFileBaseName}.pch" PARENT_SCOPE)
 +			elseif (CMAKE_${_language}_COMPILER_ID MATCHES "Clang")
 +				# Clang looks for a precompiled header corresponding to the prefix header with the extension .pch appended
 +				set (${_pchFileVar} "${_baseDir}/${_prefixFileName}.pch" PARENT_SCOPE)
 +			elseif (CMAKE_${_language}_COMPILER_ID MATCHES "GNU")
 +				# GCC looks for a precompiled header corresponding to the prefix header with the extension .gch appended
 +				set (${_pchFileVar} "${_baseDir}/${_prefixFileName}.gch" PARENT_SCOPE)
 +			elseif (CMAKE_${_language}_COMPILER_ID MATCHES "Intel")
 +				# Intel uses the extension .pchi added to the prefix header base name
 +				set (${_pchFileVar} "${_baseDir}/${_prefixFileBaseName}.pchi" PARENT_SCOPE)
 +			endif()
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_select_unity_source_files _unityFile _sourcesVar)
 +	set (_sourceFiles ${ARGN})
 +	if (_sourceFiles AND "${_unityFile}" MATCHES "${COTIRE_UNITY_SOURCE_FILENAME_SUFFIX}_([0-9]+)_([0-9]+)")
 +		set (_startIndex ${CMAKE_MATCH_1})
 +		set (_endIndex ${CMAKE_MATCH_2})
 +		list (LENGTH _sourceFiles _numberOfSources)
 +		if (NOT _startIndex LESS _numberOfSources)
 +			math (EXPR _startIndex "${_numberOfSources} - 1")
 +		endif()
 +		if (NOT _endIndex LESS _numberOfSources)
 +			math (EXPR _endIndex "${_numberOfSources} - 1")
 +		endif()
 +		set (_files "")
 +		foreach (_index RANGE ${_startIndex} ${_endIndex})
 +			list (GET _sourceFiles ${_index} _file)
 +			list (APPEND _files "${_file}")
 +		endforeach()
 +	else()
 +		set (_files ${_sourceFiles})
 +	endif()
 +	set (${_sourcesVar} ${_files} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_unity_source_dependencies _language _target _dependencySourcesVar)
 +	set (_dependencySources "")
 +	# depend on target's generated source files
 +	get_target_property(_targetSourceFiles ${_target} SOURCES)
 +	cotire_get_objects_with_property_on(_generatedSources GENERATED SOURCE ${_targetSourceFiles})
 +	if (_generatedSources)
 +		# but omit all generated source files that have the COTIRE_EXCLUDED property set to true
 +		cotire_get_objects_with_property_on(_excludedGeneratedSources COTIRE_EXCLUDED SOURCE ${_generatedSources})
 +		if (_excludedGeneratedSources)
 +			list (REMOVE_ITEM _generatedSources ${_excludedGeneratedSources})
 +		endif()
 +		# and omit all generated source files that have the COTIRE_DEPENDENCY property set to false explicitly
 +		cotire_get_objects_with_property_off(_excludedNonDependencySources COTIRE_DEPENDENCY SOURCE ${_generatedSources})
 +		if (_excludedNonDependencySources)
 +			list (REMOVE_ITEM _generatedSources ${_excludedNonDependencySources})
 +		endif()
 +		if (_generatedSources)
 +			list (APPEND _dependencySources ${_generatedSources})
 +		endif()
 +	endif()
 +	if (COTIRE_DEBUG AND _dependencySources)
 +		message (STATUS "${_language} ${_target} unity source dependencies: ${_dependencySources}")
 +	endif()
 +	set (${_dependencySourcesVar} ${_dependencySources} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_get_prefix_header_dependencies _language _target _dependencySourcesVar)
 +	set (_dependencySources "")
 +	# depend on target source files marked with custom COTIRE_DEPENDENCY property
 +	get_target_property(_targetSourceFiles ${_target} SOURCES)
 +	cotire_get_objects_with_property_on(_dependencySources COTIRE_DEPENDENCY SOURCE ${_targetSourceFiles})
 +	if (COTIRE_DEBUG AND _dependencySources)
 +		message (STATUS "${_language} ${_target} prefix header dependencies: ${_dependencySources}")
 +	endif()
 +	set (${_dependencySourcesVar} ${_dependencySources} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_generate_target_script _language _configurations _target _targetScriptVar _targetConfigScriptVar)
 +	set (_targetSources ${ARGN})
 +	cotire_get_prefix_header_dependencies(${_language} ${_target} COTIRE_TARGET_PREFIX_DEPENDS ${_targetSources})
 +	cotire_get_unity_source_dependencies(${_language} ${_target} COTIRE_TARGET_UNITY_DEPENDS ${_targetSources})
 +	# set up variables to be configured
 +	set (COTIRE_TARGET_LANGUAGE "${_language}")
 +	get_target_property(COTIRE_TARGET_IGNORE_PATH ${_target} COTIRE_PREFIX_HEADER_IGNORE_PATH)
 +	cotire_add_sys_root_paths(COTIRE_TARGET_IGNORE_PATH)
 +	get_target_property(COTIRE_TARGET_INCLUDE_PATH ${_target} COTIRE_PREFIX_HEADER_INCLUDE_PATH)
 +	cotire_add_sys_root_paths(COTIRE_TARGET_INCLUDE_PATH)
 +	get_target_property(COTIRE_TARGET_PRE_UNDEFS ${_target} COTIRE_UNITY_SOURCE_PRE_UNDEFS)
 +	get_target_property(COTIRE_TARGET_POST_UNDEFS ${_target} COTIRE_UNITY_SOURCE_POST_UNDEFS)
 +	get_target_property(COTIRE_TARGET_MAXIMUM_NUMBER_OF_INCLUDES ${_target} COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES)
 +	get_target_property(COTIRE_TARGET_INCLUDE_PRIORITY_PATH ${_target} COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH)
 +	cotire_get_source_files_undefs(COTIRE_UNITY_SOURCE_PRE_UNDEFS COTIRE_TARGET_SOURCES_PRE_UNDEFS ${_targetSources})
 +	cotire_get_source_files_undefs(COTIRE_UNITY_SOURCE_POST_UNDEFS COTIRE_TARGET_SOURCES_POST_UNDEFS ${_targetSources})
 +	set (COTIRE_TARGET_CONFIGURATION_TYPES "${_configurations}")
 +	foreach (_config ${_configurations})
 +		string (TOUPPER "${_config}" _upperConfig)
 +		cotire_get_target_include_directories(
 +			"${_config}" "${_language}" "${_target}" COTIRE_TARGET_INCLUDE_DIRECTORIES_${_upperConfig} COTIRE_TARGET_SYSTEM_INCLUDE_DIRECTORIES_${_upperConfig})
 +		cotire_get_target_compile_definitions(
 +			"${_config}" "${_language}" "${_target}" COTIRE_TARGET_COMPILE_DEFINITIONS_${_upperConfig})
 +		cotire_get_target_compiler_flags(
 +			"${_config}" "${_language}" "${_target}" COTIRE_TARGET_COMPILE_FLAGS_${_upperConfig})
 +		cotire_get_source_files_compile_definitions(
 +			"${_config}" "${_language}" COTIRE_TARGET_SOURCES_COMPILE_DEFINITIONS_${_upperConfig} ${_targetSources})
 +	endforeach()
 +	get_target_property(COTIRE_TARGET_${_language}_COMPILER_LAUNCHER ${_target} ${_language}_COMPILER_LAUNCHER)
 +	# set up COTIRE_TARGET_SOURCES
 +	set (COTIRE_TARGET_SOURCES "")
 +	foreach (_sourceFile ${_targetSources})
 +		get_source_file_property(_generated "${_sourceFile}" GENERATED)
 +		if (_generated)
 +			# use absolute paths for generated files only, retrieving the LOCATION property is an expensive operation
 +			get_source_file_property(_sourceLocation "${_sourceFile}" LOCATION)
 +			list (APPEND COTIRE_TARGET_SOURCES "${_sourceLocation}")
 +		else()
 +			list (APPEND COTIRE_TARGET_SOURCES "${_sourceFile}")
 +		endif()
 +	endforeach()
 +	# copy variable definitions to cotire target script
 +	get_cmake_property(_vars VARIABLES)
 +	string (REGEX MATCHALL "COTIRE_[A-Za-z0-9_]+" _matchVars "${_vars}")
 +	# omit COTIRE_*_INIT variables
 +	string (REGEX MATCHALL "COTIRE_[A-Za-z0-9_]+_INIT" _initVars "${_matchVars}")
 +	if (_initVars)
 +		list (REMOVE_ITEM _matchVars ${_initVars})
 +	endif()
 +	# omit COTIRE_VERBOSE which is passed as a CMake define on command line
 +	list (REMOVE_ITEM _matchVars COTIRE_VERBOSE)
 +	set (_contents "")
 +	set (_contentsHasGeneratorExpressions FALSE)
 +	foreach (_var IN LISTS _matchVars ITEMS
 +		XCODE MSVC CMAKE_GENERATOR CMAKE_BUILD_TYPE CMAKE_CONFIGURATION_TYPES
 +		CMAKE_${_language}_COMPILER_ID CMAKE_${_language}_COMPILER_VERSION
 +		CMAKE_${_language}_COMPILER_LAUNCHER CMAKE_${_language}_COMPILER CMAKE_${_language}_COMPILER_ARG1
 +		CMAKE_INCLUDE_FLAG_${_language} CMAKE_INCLUDE_FLAG_SEP_${_language}
 +		CMAKE_INCLUDE_SYSTEM_FLAG_${_language}
 +		CMAKE_${_language}_FRAMEWORK_SEARCH_FLAG
 +		CMAKE_${_language}_SYSTEM_FRAMEWORK_SEARCH_FLAG
 +		CMAKE_${_language}_SOURCE_FILE_EXTENSIONS)
 +		if (DEFINED ${_var})
 +			string (REPLACE "\"" "\\\"" _value "${${_var}}")
 +			set (_contents "${_contents}set (${_var} \"${_value}\")\n")
 +			if (NOT _contentsHasGeneratorExpressions)
 +				if ("${_value}" MATCHES "\\$<.*>")
 +					set (_contentsHasGeneratorExpressions TRUE)
 +				endif()
 +			endif()
 +		endif()
 +	endforeach()
 +	# generate target script file
 +	get_filename_component(_moduleName "${COTIRE_CMAKE_MODULE_FILE}" NAME)
 +	set (_targetCotireScript "${CMAKE_CURRENT_BINARY_DIR}/${_target}_${_language}_${_moduleName}")
 +	cotire_write_file("CMAKE" "${_targetCotireScript}" "${_contents}" FALSE)
 +	if (_contentsHasGeneratorExpressions)
 +		# use file(GENERATE ...) to expand generator expressions in the target script at CMake generate-time
 +		set (_configNameOrNoneGeneratorExpression "$<$<CONFIG:>:None>$<$<NOT:$<CONFIG:>>:$<CONFIGURATION>>")
 +		set (_targetCotireConfigScript "${CMAKE_CURRENT_BINARY_DIR}/${_target}_${_language}_${_configNameOrNoneGeneratorExpression}_${_moduleName}")
 +		file (GENERATE OUTPUT "${_targetCotireConfigScript}" INPUT "${_targetCotireScript}")
 +	else()
 +		set (_targetCotireConfigScript "${_targetCotireScript}")
 +	endif()
 +	set (${_targetScriptVar} "${_targetCotireScript}" PARENT_SCOPE)
 +	set (${_targetConfigScriptVar} "${_targetCotireConfigScript}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_pch_file_compilation _language _target _targetScript _prefixFile _pchFile _hostFile)
 +	set (_sourceFiles ${ARGN})
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +		# for Visual Studio and Intel, we attach the precompiled header compilation to the host file
 +		# the remaining files include the precompiled header, see cotire_setup_pch_file_inclusion
 +		if (_sourceFiles)
 +			set (_flags "")
 +			cotire_add_pch_compilation_flags(
 +				"${_language}" "${CMAKE_${_language}_COMPILER_ID}" "${CMAKE_${_language}_COMPILER_VERSION}"
 +				"${_prefixFile}" "${_pchFile}" "${_hostFile}" _flags)
 +			set_property (SOURCE ${_hostFile} APPEND_STRING PROPERTY COMPILE_FLAGS " ${_flags} ")
 +			set_property (SOURCE ${_hostFile} APPEND PROPERTY OBJECT_OUTPUTS "${_pchFile}")
 +			# make object file generated from host file depend on prefix header
 +			set_property (SOURCE ${_hostFile} APPEND PROPERTY OBJECT_DEPENDS "${_prefixFile}")
 +			# mark host file as cotired to prevent it from being used in another cotired target
 +			set_property (SOURCE ${_hostFile} PROPERTY COTIRE_TARGET "${_target}")
 +		endif()
 +	elseif ("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
 +		# for makefile based generator, we add a custom command to precompile the prefix header
 +		if (_targetScript)
 +			cotire_set_cmd_to_prologue(_cmds)
 +			list (APPEND _cmds -P "${COTIRE_CMAKE_MODULE_FILE}" "precompile" "${_targetScript}" "${_prefixFile}" "${_pchFile}" "${_hostFile}")
 +			if (MSVC_IDE)
 +				file (TO_NATIVE_PATH "${_pchFile}" _pchFileLogPath)
 +			else()
 +				file (RELATIVE_PATH _pchFileLogPath "${CMAKE_BINARY_DIR}" "${_pchFile}")
 +			endif()
 +			# make precompiled header compilation depend on the actual compiler executable used to force
 +			# re-compilation when the compiler executable is updated. This prevents "created by a different GCC executable"
 +			# warnings when the precompiled header is included.
 +			get_filename_component(_realCompilerExe "${CMAKE_${_language}_COMPILER}" ABSOLUTE)
 +			if (COTIRE_DEBUG)
 +				message (STATUS "add_custom_command: OUTPUT ${_pchFile} ${_cmds} DEPENDS ${_prefixFile} ${_realCompilerExe} IMPLICIT_DEPENDS ${_language} ${_prefixFile}")
 +			endif()
 +			set_property (SOURCE "${_pchFile}" PROPERTY GENERATED TRUE)
 +			add_custom_command(
 +				OUTPUT "${_pchFile}"
 +				COMMAND ${_cmds}
 +				DEPENDS "${_prefixFile}" "${_realCompilerExe}"
 +				IMPLICIT_DEPENDS ${_language} "${_prefixFile}"
 +				WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +				COMMENT "Building ${_language} precompiled header ${_pchFileLogPath}"
 +				VERBATIM)
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_setup_pch_file_inclusion _language _target _wholeTarget _prefixFile _pchFile _hostFile)
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +		# for Visual Studio and Intel, we include the precompiled header in all but the host file
 +		# the host file does the precompiled header compilation, see cotire_setup_pch_file_compilation
 +		set (_sourceFiles ${ARGN})
 +		list (LENGTH _sourceFiles _numberOfSourceFiles)
 +		if (_numberOfSourceFiles GREATER 0)
 +			# mark sources as cotired to prevent them from being used in another cotired target
 +			set_source_files_properties(${_sourceFiles} PROPERTIES COTIRE_TARGET "${_target}")
 +			set (_flags "")
 +			cotire_add_prefix_pch_inclusion_flags(
 +				"${_language}" "${CMAKE_${_language}_COMPILER_ID}" "${CMAKE_${_language}_COMPILER_VERSION}"
 +				"${_prefixFile}" "${_pchFile}" _flags)
 +			set_property (SOURCE ${_sourceFiles} APPEND_STRING PROPERTY COMPILE_FLAGS " ${_flags} ")
 +			# make object files generated from source files depend on precompiled header
 +			set_property (SOURCE ${_sourceFiles} APPEND PROPERTY OBJECT_DEPENDS "${_pchFile}")
 +		endif()
 +	elseif ("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
 +		set (_sourceFiles ${_hostFile} ${ARGN})
 +		if (NOT _wholeTarget)
 +			# for makefile based generator, we force the inclusion of the prefix header for a subset
 +			# of the source files, if this is a multi-language target or has excluded files
 +			set (_flags "")
 +			cotire_add_prefix_pch_inclusion_flags(
 +				"${_language}" "${CMAKE_${_language}_COMPILER_ID}" "${CMAKE_${_language}_COMPILER_VERSION}"
 +				"${_prefixFile}" "${_pchFile}" _flags)
 +			set_property (SOURCE ${_sourceFiles} APPEND_STRING PROPERTY COMPILE_FLAGS " ${_flags} ")
 +			# mark sources as cotired to prevent them from being used in another cotired target
 +			set_source_files_properties(${_sourceFiles} PROPERTIES COTIRE_TARGET "${_target}")
 +		endif()
 +		# make object files generated from source files depend on precompiled header
 +		set_property (SOURCE ${_sourceFiles} APPEND PROPERTY OBJECT_DEPENDS "${_pchFile}")
 +	endif()
 +endfunction()
 +
 +function (cotire_setup_prefix_file_inclusion _language _target _prefixFile)
 +	set (_sourceFiles ${ARGN})
 +	# force the inclusion of the prefix header for the given source files
 +	set (_flags "")
 +	set (_pchFile "")
 +	cotire_add_prefix_pch_inclusion_flags(
 +		"${_language}" "${CMAKE_${_language}_COMPILER_ID}" "${CMAKE_${_language}_COMPILER_VERSION}"
 +		"${_prefixFile}" "${_pchFile}" _flags)
 +	set_property (SOURCE ${_sourceFiles} APPEND_STRING PROPERTY COMPILE_FLAGS " ${_flags} ")
 +	# mark sources as cotired to prevent them from being used in another cotired target
 +	set_source_files_properties(${_sourceFiles} PROPERTIES COTIRE_TARGET "${_target}")
 +	# make object files generated from source files depend on prefix header
 +	set_property (SOURCE ${_sourceFiles} APPEND PROPERTY OBJECT_DEPENDS "${_prefixFile}")
 +endfunction()
 +
 +function (cotire_get_first_set_property_value _propertyValueVar _type _object)
 +	set (_properties ${ARGN})
 +	foreach (_property ${_properties})
 +		get_property(_propertyValue ${_type} "${_object}" PROPERTY ${_property})
 +		if (_propertyValue)
 +			set (${_propertyValueVar} ${_propertyValue} PARENT_SCOPE)
 +			return()
 +		endif()
 +	endforeach()
 +	set (${_propertyValueVar} "" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_combine_command _language _targetScript _joinedFile _cmdsVar)
 +	set (_files ${ARGN})
 +	set (_filesPaths "")
 +	foreach (_file ${_files})
 +		get_filename_component(_filePath "${_file}" ABSOLUTE)
 +		list (APPEND _filesPaths "${_filePath}")
 +	endforeach()
 +	cotire_set_cmd_to_prologue(_prefixCmd)
 +	list (APPEND _prefixCmd -P "${COTIRE_CMAKE_MODULE_FILE}" "combine")
 +	if (_targetScript)
 +		list (APPEND _prefixCmd "${_targetScript}")
 +	endif()
 +	list (APPEND _prefixCmd "${_joinedFile}" ${_filesPaths})
 +	if (COTIRE_DEBUG)
 +		message (STATUS "add_custom_command: OUTPUT ${_joinedFile} COMMAND ${_prefixCmd} DEPENDS ${_files}")
 +	endif()
 +	set_property (SOURCE "${_joinedFile}" PROPERTY GENERATED TRUE)
 +	if (MSVC_IDE)
 +		file (TO_NATIVE_PATH "${_joinedFile}" _joinedFileLogPath)
 +	else()
 +		file (RELATIVE_PATH _joinedFileLogPath "${CMAKE_BINARY_DIR}" "${_joinedFile}")
 +	endif()
 +	get_filename_component(_joinedFileBaseName "${_joinedFile}" NAME_WE)
 +	get_filename_component(_joinedFileExt "${_joinedFile}" EXT)
 +	if (_language AND _joinedFileBaseName MATCHES "${COTIRE_UNITY_SOURCE_FILENAME_SUFFIX}$")
 +		set (_comment "Generating ${_language} unity source ${_joinedFileLogPath}")
 +	elseif (_language AND _joinedFileBaseName MATCHES "${COTIRE_PREFIX_HEADER_FILENAME_SUFFIX}$")
 +		if (_joinedFileExt MATCHES "^\\.c")
 +			set (_comment "Generating ${_language} prefix source ${_joinedFileLogPath}")
 +		else()
 +			set (_comment "Generating ${_language} prefix header ${_joinedFileLogPath}")
 +		endif()
 +	else()
 +		set (_comment "Generating ${_joinedFileLogPath}")
 +	endif()
 +	add_custom_command(
 +		OUTPUT "${_joinedFile}"
 +		COMMAND ${_prefixCmd}
 +		DEPENDS ${_files}
 +		COMMENT "${_comment}"
 +		WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
 +		VERBATIM)
 +	list (APPEND ${_cmdsVar} COMMAND ${_prefixCmd})
 +	set (${_cmdsVar} ${${_cmdsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_target_pch_usage _languages _target _wholeTarget)
 +	if (XCODE)
 +		# for Xcode, we attach a pre-build action to generate the unity sources and prefix headers
 +		set (_prefixFiles "")
 +		foreach (_language ${_languages})
 +			get_property(_prefixFile TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER)
 +			if (_prefixFile)
 +				list (APPEND _prefixFiles "${_prefixFile}")
 +			endif()
 +		endforeach()
 +		set (_cmds ${ARGN})
 +		list (LENGTH _prefixFiles _numberOfPrefixFiles)
 +		if (_numberOfPrefixFiles GREATER 1)
 +			# we also generate a generic, single prefix header which includes all language specific prefix headers
 +			set (_language "")
 +			set (_targetScript "")
 +			cotire_make_prefix_file_path("${_language}" ${_target} _prefixHeader)
 +			cotire_setup_combine_command("${_language}" "${_targetScript}" "${_prefixHeader}" _cmds ${_prefixFiles})
 +		else()
 +			set (_prefixHeader "${_prefixFiles}")
 +		endif()
 +		if (COTIRE_DEBUG)
 +			message (STATUS "add_custom_command: TARGET ${_target} PRE_BUILD ${_cmds}")
 +		endif()
 +		# because CMake PRE_BUILD command does not support dependencies,
 +		# we check dependencies explicity in cotire script mode when the pre-build action is run
 +		add_custom_command(
 +			TARGET "${_target}"
 +			PRE_BUILD ${_cmds}
 +			WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +			COMMENT "Updating target ${_target} prefix headers"
 +			VERBATIM)
 +		# make Xcode precompile the generated prefix header with ProcessPCH and ProcessPCH++
 +		set_target_properties(${_target} PROPERTIES XCODE_ATTRIBUTE_GCC_PRECOMPILE_PREFIX_HEADER "YES")
 +		set_target_properties(${_target} PROPERTIES XCODE_ATTRIBUTE_GCC_PREFIX_HEADER "${_prefixHeader}")
 +	elseif ("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
 +		# for makefile based generator, we force inclusion of the prefix header for all target source files
 +		# if this is a single-language target without any excluded files
 +		if (_wholeTarget)
 +			set (_language "${_languages}")
 +			# for Visual Studio and Intel, precompiled header inclusion is always done on the source file level
 +			# see cotire_setup_pch_file_inclusion
 +			if (NOT CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +				get_property(_prefixFile TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER)
 +				if (_prefixFile)
 +					get_property(_pchFile TARGET ${_target} PROPERTY COTIRE_${_language}_PRECOMPILED_HEADER)
 +					set (_options COMPILE_OPTIONS)
 +					cotire_add_prefix_pch_inclusion_flags(
 +						"${_language}" "${CMAKE_${_language}_COMPILER_ID}" "${CMAKE_${_language}_COMPILER_VERSION}"
 +						"${_prefixFile}" "${_pchFile}" _options)
 +					set_property(TARGET ${_target} APPEND PROPERTY ${_options})
 +				endif()
 +			endif()
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_setup_unity_generation_commands _language _target _targetScript _targetConfigScript _unityFiles _cmdsVar)
 +	set (_dependencySources "")
 +	cotire_get_unity_source_dependencies(${_language} ${_target} _dependencySources ${ARGN})
 +	foreach (_unityFile ${_unityFiles})
 +		set_property (SOURCE "${_unityFile}" PROPERTY GENERATED TRUE)
 +		# set up compiled unity source dependencies via OBJECT_DEPENDS
 +		# this ensures that missing source files are generated before the unity file is compiled
 +		if (COTIRE_DEBUG AND _dependencySources)
 +			message (STATUS "${_unityFile} OBJECT_DEPENDS ${_dependencySources}")
 +		endif()
 +		if (_dependencySources)
 +			# the OBJECT_DEPENDS property requires a list of full paths
 +			set (_objectDependsPaths "")
 +			foreach (_sourceFile ${_dependencySources})
 +				get_source_file_property(_sourceLocation "${_sourceFile}" LOCATION)
 +				list (APPEND _objectDependsPaths "${_sourceLocation}")
 +			endforeach()
 +			set_property (SOURCE "${_unityFile}" PROPERTY OBJECT_DEPENDS ${_objectDependsPaths})
 +		endif()
 +		if (WIN32 AND CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +			# unity file compilation results in potentially huge object file, thus use /bigobj by default unter MSVC and Windows Intel
 +			set_property (SOURCE "${_unityFile}" APPEND_STRING PROPERTY COMPILE_FLAGS "/bigobj")
 +		endif()
 +		cotire_set_cmd_to_prologue(_unityCmd)
 +		list (APPEND _unityCmd -P "${COTIRE_CMAKE_MODULE_FILE}" "unity" "${_targetConfigScript}" "${_unityFile}")
 +		if (CMAKE_VERSION VERSION_LESS "3.1.0")
 +			set (_unityCmdDepends "${_targetScript}")
 +		else()
 +			# CMake 3.1.0 supports generator expressions in arguments to DEPENDS
 +			set (_unityCmdDepends "${_targetConfigScript}")
 +		endif()
 +		if (MSVC_IDE)
 +			file (TO_NATIVE_PATH "${_unityFile}" _unityFileLogPath)
 +		else()
 +			file (RELATIVE_PATH _unityFileLogPath "${CMAKE_BINARY_DIR}" "${_unityFile}")
 +		endif()
 +		if (COTIRE_DEBUG)
 +			message (STATUS "add_custom_command: OUTPUT ${_unityFile} COMMAND ${_unityCmd} DEPENDS ${_unityCmdDepends}")
 +		endif()
 +		add_custom_command(
 +			OUTPUT "${_unityFile}"
 +			COMMAND ${_unityCmd}
 +			DEPENDS ${_unityCmdDepends}
 +			COMMENT "Generating ${_language} unity source ${_unityFileLogPath}"
 +			WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +			VERBATIM)
 +		list (APPEND ${_cmdsVar} COMMAND ${_unityCmd})
 +	endforeach()
 +	set (${_cmdsVar} ${${_cmdsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_prefix_generation_command _language _target _targetScript _prefixFile _unityFiles _cmdsVar)
 +	set (_sourceFiles ${ARGN})
 +	set (_dependencySources "")
 +	cotire_get_prefix_header_dependencies(${_language} ${_target} _dependencySources ${_sourceFiles})
 +	cotire_set_cmd_to_prologue(_prefixCmd)
 +	list (APPEND _prefixCmd -P "${COTIRE_CMAKE_MODULE_FILE}" "prefix" "${_targetScript}" "${_prefixFile}" ${_unityFiles})
 +	set_property (SOURCE "${_prefixFile}" PROPERTY GENERATED TRUE)
 +	# make prefix header generation depend on the actual compiler executable used to force
 +	# re-generation when the compiler executable is updated. This prevents "file not found"
 +	# errors for compiler version specific system header files.
 +	get_filename_component(_realCompilerExe "${CMAKE_${_language}_COMPILER}" ABSOLUTE)
 +	if (COTIRE_DEBUG)
 +		message (STATUS "add_custom_command: OUTPUT ${_prefixFile} COMMAND ${_prefixCmd} DEPENDS ${_unityFile} ${_dependencySources} ${_realCompilerExe}")
 +	endif()
 +	if (MSVC_IDE)
 +		file (TO_NATIVE_PATH "${_prefixFile}" _prefixFileLogPath)
 +	else()
 +		file (RELATIVE_PATH _prefixFileLogPath "${CMAKE_BINARY_DIR}" "${_prefixFile}")
 +	endif()
 +	get_filename_component(_prefixFileExt "${_prefixFile}" EXT)
 +	if (_prefixFileExt MATCHES "^\\.c")
 +		set (_comment "Generating ${_language} prefix source ${_prefixFileLogPath}")
 +	else()
 +		set (_comment "Generating ${_language} prefix header ${_prefixFileLogPath}")
 +	endif()
 +	# prevent pre-processing errors upon generating the prefix header when a target's generated include file does not yet exist
 +	# we do not add a file-level dependency for the target's generated files though, because we only want to depend on their existence
 +	# thus we make the prefix header generation depend on a custom helper target which triggers the generation of the files
 +	set (_preTargetName "${_target}${COTIRE_PCH_TARGET_SUFFIX}_pre")
 +	if (TARGET ${_preTargetName})
 +		# custom helper target has already been generated while processing a different language
 +		list (APPEND _dependencySources ${_preTargetName})
 +	else()
 +		get_target_property(_targetSourceFiles ${_target} SOURCES)
 +		cotire_get_objects_with_property_on(_generatedSources GENERATED SOURCE ${_targetSourceFiles})
 +		if (_generatedSources)
 +			add_custom_target("${_preTargetName}" DEPENDS ${_generatedSources})
 +			cotire_init_target("${_preTargetName}")
 +			list (APPEND _dependencySources ${_preTargetName})
 +		endif()
 +	endif()
 +	add_custom_command(
 +		OUTPUT "${_prefixFile}" "${_prefixFile}.log"
 +		COMMAND ${_prefixCmd}
 +		DEPENDS ${_unityFiles} ${_dependencySources} "${_realCompilerExe}"
 +		COMMENT "${_comment}"
 +		WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 +		VERBATIM)
 +	list (APPEND ${_cmdsVar} COMMAND ${_prefixCmd})
 +	set (${_cmdsVar} ${${_cmdsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_prefix_generation_from_unity_command _language _target _targetScript _prefixFile _unityFiles _cmdsVar)
 +	set (_sourceFiles ${ARGN})
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "GNU|Clang")
 +		# GNU and Clang require indirect compilation of the prefix header to make them honor the system_header pragma
 +		cotire_prefix_header_to_source_file_path(${_language} "${_prefixFile}" _prefixSourceFile)
 +	else()
 +		set (_prefixSourceFile "${_prefixFile}")
 +	endif()
 +	cotire_setup_prefix_generation_command(
 +		${_language} ${_target} "${_targetScript}"
 +		"${_prefixSourceFile}" "${_unityFiles}" ${_cmdsVar} ${_sourceFiles})
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "GNU|Clang")
 +		# set up generation of a prefix source file which includes the prefix header
 +		cotire_setup_combine_command(${_language} "${_targetScript}" "${_prefixFile}" _cmds ${_prefixSourceFile})
 +	endif()
 +	set (${_cmdsVar} ${${_cmdsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_prefix_generation_from_provided_command _language _target _targetScript _prefixFile _cmdsVar)
 +	set (_prefixHeaderFiles ${ARGN})
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "GNU|Clang")
 +		# GNU and Clang require indirect compilation of the prefix header to make them honor the system_header pragma
 +		cotire_prefix_header_to_source_file_path(${_language} "${_prefixFile}" _prefixSourceFile)
 +	else()
 +		set (_prefixSourceFile "${_prefixFile}")
 +	endif()
 +	cotire_setup_combine_command(${_language} "${_targetScript}" "${_prefixSourceFile}" _cmds ${_prefixHeaderFiles})
 +	if (CMAKE_${_language}_COMPILER_ID MATCHES "GNU|Clang")
 +		# set up generation of a prefix source file which includes the prefix header
 +		cotire_setup_combine_command(${_language} "${_targetScript}" "${_prefixFile}" _cmds ${_prefixSourceFile})
 +	endif()
 +	set (${_cmdsVar} ${${_cmdsVar}} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_init_cotire_target_properties _target)
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_ENABLE_PRECOMPILED_HEADER SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_ENABLE_PRECOMPILED_HEADER TRUE)
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_ADD_UNITY_BUILD SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_ADD_UNITY_BUILD TRUE)
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_ADD_CLEAN SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_ADD_CLEAN FALSE)
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_IGNORE_PATH SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_IGNORE_PATH "${CMAKE_SOURCE_DIR}")
 +		cotire_check_is_path_relative_to("${CMAKE_BINARY_DIR}" _isRelative "${CMAKE_SOURCE_DIR}")
 +		if (NOT _isRelative)
 +			set_property(TARGET ${_target} APPEND PROPERTY COTIRE_PREFIX_HEADER_IGNORE_PATH "${CMAKE_BINARY_DIR}")
 +		endif()
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_INCLUDE_PATH SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_INCLUDE_PATH "")
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH "")
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_PRE_UNDEFS SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_PRE_UNDEFS "")
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_POST_UNDEFS SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_POST_UNDEFS "")
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_UNITY_LINK_LIBRARIES_INIT SET)
 +	if (NOT _isSet)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_LINK_LIBRARIES_INIT "COPY_UNITY")
 +	endif()
 +	get_property(_isSet TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES SET)
 +	if (NOT _isSet)
 +		if (COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES)
 +			set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES "${COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES}")
 +		else()
 +			set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES "")
 +		endif()
 +	endif()
 +endfunction()
 +
 +function (cotire_make_target_message _target _languages _disableMsg _targetMsgVar)
 +	get_target_property(_targetUsePCH ${_target} COTIRE_ENABLE_PRECOMPILED_HEADER)
 +	get_target_property(_targetAddSCU ${_target} COTIRE_ADD_UNITY_BUILD)
 +	string (REPLACE ";" " " _languagesStr "${_languages}")
 +	math (EXPR _numberOfExcludedFiles "${ARGC} - 4")
 +	if (_numberOfExcludedFiles EQUAL 0)
 +		set (_excludedStr "")
 +	elseif (COTIRE_VERBOSE OR _numberOfExcludedFiles LESS 4)
 +		string (REPLACE ";" ", " _excludedStr "excluding ${ARGN}")
 +	else()
 +		set (_excludedStr "excluding ${_numberOfExcludedFiles} files")
 +	endif()
 +	set (_targetMsg "")
 +	if (NOT _languages)
 +		set (_targetMsg "Target ${_target} cannot be cotired.")
 +		if (_disableMsg)
 +			set (_targetMsg "${_targetMsg} ${_disableMsg}")
 +		endif()
 +	elseif (NOT _targetUsePCH AND NOT _targetAddSCU)
 +		set (_targetMsg "${_languagesStr} target ${_target} cotired without unity build and precompiled header.")
 +		if (_disableMsg)
 +			set (_targetMsg "${_targetMsg} ${_disableMsg}")
 +		endif()
 +	elseif (NOT _targetUsePCH)
 +		if (_excludedStr)
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired without precompiled header ${_excludedStr}.")
 +		else()
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired without precompiled header.")
 +		endif()
 +		if (_disableMsg)
 +			set (_targetMsg "${_targetMsg} ${_disableMsg}")
 +		endif()
 +	elseif (NOT _targetAddSCU)
 +		if (_excludedStr)
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired without unity build ${_excludedStr}.")
 +		else()
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired without unity build.")
 +		endif()
 +	else()
 +		if (_excludedStr)
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired ${_excludedStr}.")
 +		else()
 +			set (_targetMsg "${_languagesStr} target ${_target} cotired.")
 +		endif()
 +	endif()
 +	set (${_targetMsgVar} "${_targetMsg}" PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_choose_target_languages _target _targetLanguagesVar _wholeTargetVar)
 +	set (_languages ${ARGN})
 +	set (_allSourceFiles "")
 +	set (_allExcludedSourceFiles "")
 +	set (_allCotiredSourceFiles "")
 +	set (_targetLanguages "")
 +	set (_pchEligibleTargetLanguages "")
 +	get_target_property(_targetType ${_target} TYPE)
 +	get_target_property(_targetSourceFiles ${_target} SOURCES)
 +	get_target_property(_targetUsePCH ${_target} COTIRE_ENABLE_PRECOMPILED_HEADER)
 +	get_target_property(_targetAddSCU ${_target} COTIRE_ADD_UNITY_BUILD)
 +	set (_disableMsg "")
 +	foreach (_language ${_languages})
 +		get_target_property(_prefixHeader ${_target} COTIRE_${_language}_PREFIX_HEADER)
 +		get_target_property(_unityBuildFile ${_target} COTIRE_${_language}_UNITY_SOURCE)
 +		if (_prefixHeader OR _unityBuildFile)
 +			message (STATUS "cotire: target ${_target} has already been cotired.")
 +			set (${_targetLanguagesVar} "" PARENT_SCOPE)
 +			return()
 +		endif()
 +		if (_targetUsePCH AND "${_language}" MATCHES "^C|CXX$" AND DEFINED CMAKE_${_language}_COMPILER_ID)
 +			if (CMAKE_${_language}_COMPILER_ID)
 +				cotire_check_precompiled_header_support("${_language}" "${_target}" _disableMsg)
 +				if (_disableMsg)
 +					set (_targetUsePCH FALSE)
 +				endif()
 +			endif()
 +		endif()
 +		set (_sourceFiles "")
 +		set (_excludedSources "")
 +		set (_cotiredSources "")
 +		cotire_filter_language_source_files(${_language} ${_target} _sourceFiles _excludedSources _cotiredSources ${_targetSourceFiles})
 +		if (_sourceFiles OR _excludedSources OR _cotiredSources)
 +			list (APPEND _targetLanguages ${_language})
 +		endif()
 +		if (_sourceFiles)
 +			list (APPEND _allSourceFiles ${_sourceFiles})
 +		endif()
 +		list (LENGTH _sourceFiles _numberOfSources)
 +		if (NOT _numberOfSources LESS ${COTIRE_MINIMUM_NUMBER_OF_TARGET_SOURCES})
 +			list (APPEND _pchEligibleTargetLanguages ${_language})
 +		endif()
 +		if (_excludedSources)
 +			list (APPEND _allExcludedSourceFiles ${_excludedSources})
 +		endif()
 +		if (_cotiredSources)
 +			list (APPEND _allCotiredSourceFiles ${_cotiredSources})
 +		endif()
 +	endforeach()
 +	set (_targetMsgLevel STATUS)
 +	if (NOT _targetLanguages)
 +		string (REPLACE ";" " or " _languagesStr "${_languages}")
 +		set (_disableMsg "No ${_languagesStr} source files.")
 +		set (_targetUsePCH FALSE)
 +		set (_targetAddSCU FALSE)
 +	endif()
 +	if (_targetUsePCH)
 +		if (_allCotiredSourceFiles)
 +			cotire_get_source_file_property_values(_cotireTargets COTIRE_TARGET ${_allCotiredSourceFiles})
 +			list (REMOVE_DUPLICATES _cotireTargets)
 +			string (REPLACE ";" ", " _cotireTargetsStr "${_cotireTargets}")
 +			set (_disableMsg "Target sources already include a precompiled header for target(s) ${_cotireTargets}.")
 +			set (_disableMsg "${_disableMsg} Set target property COTIRE_ENABLE_PRECOMPILED_HEADER to FALSE for targets ${_target},")
 +			set (_disableMsg "${_disableMsg} ${_cotireTargetsStr} to get a workable build system.")
 +			set (_targetMsgLevel SEND_ERROR)
 +			set (_targetUsePCH FALSE)
 +		elseif (NOT _pchEligibleTargetLanguages)
 +			set (_disableMsg "Too few applicable sources.")
 +			set (_targetUsePCH FALSE)
 +		elseif (XCODE AND _allExcludedSourceFiles)
 +			# for Xcode, we cannot apply the precompiled header to individual sources, only to the whole target
 +			set (_disableMsg "Exclusion of source files not supported for generator Xcode.")
 +			set (_targetUsePCH FALSE)
 +		elseif (XCODE AND "${_targetType}" STREQUAL "OBJECT_LIBRARY")
 +			# for Xcode, we cannot apply the required PRE_BUILD action to generate the prefix header to an OBJECT_LIBRARY target
 +			set (_disableMsg "Required PRE_BUILD action not supported for OBJECT_LIBRARY targets for generator Xcode.")
 +			set (_targetUsePCH FALSE)
 +		endif()
 +	endif()
 +	set_property(TARGET ${_target} PROPERTY COTIRE_ENABLE_PRECOMPILED_HEADER ${_targetUsePCH})
 +	set_property(TARGET ${_target} PROPERTY COTIRE_ADD_UNITY_BUILD ${_targetAddSCU})
 +	cotire_make_target_message(${_target} "${_targetLanguages}" "${_disableMsg}" _targetMsg ${_allExcludedSourceFiles})
 +	if (_targetMsg)
 +		if (NOT DEFINED COTIREMSG_${_target})
 +			set (COTIREMSG_${_target} "")
 +		endif()
 +		if (COTIRE_VERBOSE OR NOT "${_targetMsgLevel}" STREQUAL "STATUS" OR
 +			NOT "${COTIREMSG_${_target}}" STREQUAL "${_targetMsg}")
 +			# cache message to avoid redundant messages on re-configure
 +			set (COTIREMSG_${_target} "${_targetMsg}" CACHE INTERNAL "${_target} cotire message.")
 +			message (${_targetMsgLevel} "${_targetMsg}")
 +		endif()
 +	endif()
 +	list (LENGTH _targetLanguages _numberOfLanguages)
 +	if (_numberOfLanguages GREATER 1 OR _allExcludedSourceFiles)
 +		set (${_wholeTargetVar} FALSE PARENT_SCOPE)
 +	else()
 +		set (${_wholeTargetVar} TRUE PARENT_SCOPE)
 +	endif()
 +	set (${_targetLanguagesVar} ${_targetLanguages} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_compute_unity_max_number_of_includes _target _maxIncludesVar)
 +	set (_sourceFiles ${ARGN})
 +	get_target_property(_maxIncludes ${_target} COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES)
 +	if (_maxIncludes MATCHES "(-j|--parallel|--jobs) ?([0-9]*)")
 +		set (_numberOfThreads "${CMAKE_MATCH_2}")
 +		if (NOT _numberOfThreads)
 +			# use all available cores
 +			ProcessorCount(_numberOfThreads)
 +		endif()
 +		list (LENGTH _sourceFiles _numberOfSources)
 +		math (EXPR _maxIncludes "(${_numberOfSources} + ${_numberOfThreads} - 1) / ${_numberOfThreads}")
 +	elseif (NOT _maxIncludes MATCHES "[0-9]+")
 +		set (_maxIncludes 0)
 +	endif()
 +	if (COTIRE_DEBUG)
 +		message (STATUS "${_target} unity source max includes: ${_maxIncludes}")
 +	endif()
 +	set (${_maxIncludesVar} ${_maxIncludes} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_process_target_language _language _configurations _target _wholeTarget _cmdsVar)
 +	set (${_cmdsVar} "" PARENT_SCOPE)
 +	get_target_property(_targetSourceFiles ${_target} SOURCES)
 +	set (_sourceFiles "")
 +	set (_excludedSources "")
 +	set (_cotiredSources "")
 +	cotire_filter_language_source_files(${_language} ${_target} _sourceFiles _excludedSources _cotiredSources ${_targetSourceFiles})
 +	if (NOT _sourceFiles AND NOT _cotiredSources)
 +		return()
 +	endif()
 +	set (_cmds "")
 +	# check for user provided unity source file list
 +	get_property(_unitySourceFiles TARGET ${_target} PROPERTY COTIRE_${_language}_UNITY_SOURCE_INIT)
 +	if (NOT _unitySourceFiles)
 +		set (_unitySourceFiles ${_sourceFiles} ${_cotiredSources})
 +	endif()
 +	cotire_generate_target_script(
 +		${_language} "${_configurations}" ${_target} _targetScript _targetConfigScript ${_unitySourceFiles})
 +	# set up unity files for parallel compilation
 +	cotire_compute_unity_max_number_of_includes(${_target} _maxIncludes ${_unitySourceFiles})
 +	cotire_make_unity_source_file_paths(${_language} ${_target} ${_maxIncludes} _unityFiles ${_unitySourceFiles})
 +	list (LENGTH _unityFiles _numberOfUnityFiles)
 +	if (_numberOfUnityFiles EQUAL 0)
 +		return()
 +	elseif (_numberOfUnityFiles GREATER 1)
 +		cotire_setup_unity_generation_commands(
 +			${_language} ${_target} "${_targetScript}" "${_targetConfigScript}" "${_unityFiles}" _cmds ${_unitySourceFiles})
 +	endif()
 +	# set up single unity file for prefix header generation
 +	cotire_make_single_unity_source_file_path(${_language} ${_target} _unityFile)
 +	cotire_setup_unity_generation_commands(
 +		${_language} ${_target} "${_targetScript}" "${_targetConfigScript}" "${_unityFile}" _cmds ${_unitySourceFiles})
 +	cotire_make_prefix_file_path(${_language} ${_target} _prefixFile)
 +	# set up prefix header
 +	if (_prefixFile)
 +		# check for user provided prefix header files
 +		get_property(_prefixHeaderFiles TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER_INIT)
 +		if (_prefixHeaderFiles)
 +			cotire_setup_prefix_generation_from_provided_command(
 +				${_language} ${_target} "${_targetConfigScript}" "${_prefixFile}" _cmds ${_prefixHeaderFiles})
 +		else()
 +			cotire_setup_prefix_generation_from_unity_command(
 +				${_language} ${_target} "${_targetConfigScript}" "${_prefixFile}" "${_unityFile}" _cmds ${_unitySourceFiles})
 +		endif()
 +		# check if selected language has enough sources at all
 +		list (LENGTH _sourceFiles _numberOfSources)
 +		if (_numberOfSources LESS ${COTIRE_MINIMUM_NUMBER_OF_TARGET_SOURCES})
 +			set (_targetUsePCH FALSE)
 +		else()
 +			get_target_property(_targetUsePCH ${_target} COTIRE_ENABLE_PRECOMPILED_HEADER)
 +		endif()
 +		if (_targetUsePCH)
 +			cotire_make_pch_file_path(${_language} ${_target} _pchFile)
 +			if (_pchFile)
 +				# first file in _sourceFiles is passed as the host file
 +				cotire_setup_pch_file_compilation(
 +					${_language} ${_target} "${_targetConfigScript}" "${_prefixFile}" "${_pchFile}" ${_sourceFiles})
 +				cotire_setup_pch_file_inclusion(
 +					${_language} ${_target} ${_wholeTarget} "${_prefixFile}" "${_pchFile}" ${_sourceFiles})
 +			endif()
 +		elseif (_prefixHeaderFiles)
 +			# user provided prefix header must be included unconditionally
 +			cotire_setup_prefix_file_inclusion(${_language} ${_target} "${_prefixFile}" ${_sourceFiles})
 +		endif()
 +	endif()
 +	# mark target as cotired for language
 +	set_property(TARGET ${_target} PROPERTY COTIRE_${_language}_UNITY_SOURCE "${_unityFiles}")
 +	if (_prefixFile)
 +		set_property(TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER "${_prefixFile}")
 +		if (_targetUsePCH AND _pchFile)
 +			set_property(TARGET ${_target} PROPERTY COTIRE_${_language}_PRECOMPILED_HEADER "${_pchFile}")
 +		endif()
 +	endif()
 +	set (${_cmdsVar} ${_cmds} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_clean_target _target)
 +	set (_cleanTargetName "${_target}${COTIRE_CLEAN_TARGET_SUFFIX}")
 +	if (NOT TARGET "${_cleanTargetName}")
 +		cotire_set_cmd_to_prologue(_cmds)
 +		get_filename_component(_outputDir "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}" ABSOLUTE)
 +		list (APPEND _cmds -P "${COTIRE_CMAKE_MODULE_FILE}" "cleanup" "${_outputDir}" "${COTIRE_INTDIR}" "${_target}")
 +		add_custom_target(${_cleanTargetName}
 +			COMMAND ${_cmds}
 +			WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
 +			COMMENT "Cleaning up target ${_target} cotire generated files"
 +			VERBATIM)
 +		cotire_init_target("${_cleanTargetName}")
 +	endif()
 +endfunction()
 +
 +function (cotire_setup_pch_target _languages _configurations _target)
 +	if ("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
 +		# for makefile based generators, we add a custom target to trigger the generation of the cotire related files
 +		set (_dependsFiles "")
 +		foreach (_language ${_languages})
 +			set (_props COTIRE_${_language}_PREFIX_HEADER COTIRE_${_language}_UNITY_SOURCE)
 +			if (NOT CMAKE_${_language}_COMPILER_ID MATCHES "MSVC|Intel")
 +				# Visual Studio and Intel only create precompiled header as a side effect
 +				list (INSERT _props 0 COTIRE_${_language}_PRECOMPILED_HEADER)
 +			endif()
 +			cotire_get_first_set_property_value(_dependsFile TARGET ${_target} ${_props})
 +			if (_dependsFile)
 +				list (APPEND _dependsFiles "${_dependsFile}")
 +			endif()
 +		endforeach()
 +		if (_dependsFiles)
 +			set (_pchTargetName "${_target}${COTIRE_PCH_TARGET_SUFFIX}")
 +			add_custom_target("${_pchTargetName}" DEPENDS ${_dependsFiles})
 +			cotire_init_target("${_pchTargetName}")
 +			cotire_add_to_pch_all_target(${_pchTargetName})
 +		endif()
 +	else()
 +		# for other generators, we add the "clean all" target to clean up the precompiled header
 +		cotire_setup_clean_all_target()
 +	endif()
 +endfunction()
 +
 +function (cotire_filter_object_libraries _target _objectLibrariesVar)
 +	set (_objectLibraries "")
 +	foreach (_source ${ARGN})
 +		if (_source MATCHES "^\\$<TARGET_OBJECTS:.+>$")
 +			list (APPEND _objectLibraries "${_source}")
 +		endif()
 +	endforeach()
 +	set (${_objectLibrariesVar} ${_objectLibraries} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_collect_unity_target_sources _target _languages _unityTargetSourcesVar)
 +	get_target_property(_targetSourceFiles ${_target} SOURCES)
 +	set (_unityTargetSources ${_targetSourceFiles})
 +	foreach (_language ${_languages})
 +		get_property(_unityFiles TARGET ${_target} PROPERTY COTIRE_${_language}_UNITY_SOURCE)
 +		if (_unityFiles)
 +			# remove source files that are included in the unity source
 +			set (_sourceFiles "")
 +			set (_excludedSources "")
 +			set (_cotiredSources "")
 +			cotire_filter_language_source_files(${_language} ${_target} _sourceFiles _excludedSources _cotiredSources ${_targetSourceFiles})
 +			if (_sourceFiles OR _cotiredSources)
 +				list (REMOVE_ITEM _unityTargetSources ${_sourceFiles} ${_cotiredSources})
 +			endif()
 +			# add unity source files instead
 +			list (APPEND _unityTargetSources ${_unityFiles})
 +		endif()
 +	endforeach()
 +	get_target_property(_linkLibrariesStrategy ${_target} COTIRE_UNITY_LINK_LIBRARIES_INIT)
 +	if ("${_linkLibrariesStrategy}" MATCHES "^COPY_UNITY$")
 +		cotire_filter_object_libraries(${_target} _objectLibraries ${_targetSourceFiles})
 +		if (_objectLibraries)
 +			cotire_map_libraries("${_linkLibrariesStrategy}" _unityObjectLibraries ${_objectLibraries})
 +			list (REMOVE_ITEM _unityTargetSources ${_objectLibraries})
 +			list (APPEND _unityTargetSources ${_unityObjectLibraries})
 +		endif()
 +	endif()
 +	set (${_unityTargetSourcesVar} ${_unityTargetSources} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_setup_unity_target_pch_usage _languages _target)
 +	foreach (_language ${_languages})
 +		get_property(_unityFiles TARGET ${_target} PROPERTY COTIRE_${_language}_UNITY_SOURCE)
 +		if (_unityFiles)
 +			get_property(_userPrefixFile TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER_INIT)
 +			get_property(_prefixFile TARGET ${_target} PROPERTY COTIRE_${_language}_PREFIX_HEADER)
 +			if (_userPrefixFile AND _prefixFile)
 +				# user provided prefix header must be included unconditionally by unity sources
 +				cotire_setup_prefix_file_inclusion(${_language} ${_target} "${_prefixFile}" ${_unityFiles})
 +			endif()
 +		endif()
 +	endforeach()
 +endfunction()
 +
 +function (cotire_setup_unity_build_target _languages _configurations _target)
 +	get_target_property(_unityTargetName ${_target} COTIRE_UNITY_TARGET_NAME)
 +	if (NOT _unityTargetName)
 +		set (_unityTargetName "${_target}${COTIRE_UNITY_BUILD_TARGET_SUFFIX}")
 +	endif()
 +	# determine unity target sub type
 +	get_target_property(_targetType ${_target} TYPE)
 +	if ("${_targetType}" STREQUAL "EXECUTABLE")
 +		set (_unityTargetSubType "")
 +	elseif (_targetType MATCHES "(STATIC|SHARED|MODULE|OBJECT)_LIBRARY")
 +		set (_unityTargetSubType "${CMAKE_MATCH_1}")
 +	else()
 +		message (WARNING "cotire: target ${_target} has unknown target type ${_targetType}.")
 +		return()
 +	endif()
 +	# determine unity target sources
 +	set (_unityTargetSources "")
 +	cotire_collect_unity_target_sources(${_target} "${_languages}" _unityTargetSources)
 +	# handle automatic Qt processing
 +	get_target_property(_targetAutoMoc ${_target} AUTOMOC)
 +	get_target_property(_targetAutoUic ${_target} AUTOUIC)
 +	get_target_property(_targetAutoRcc ${_target} AUTORCC)
 +	if (_targetAutoMoc OR _targetAutoUic OR _targetAutoRcc)
 +		# if the original target sources are subject to CMake's automatic Qt processing,
 +		# also include implicitly generated <targetname>_automoc.cpp file
 +		if (CMAKE_VERSION VERSION_LESS "3.8.0")
 +			list (APPEND _unityTargetSources "${_target}_automoc.cpp")
 +			set_property (SOURCE "${_target}_automoc.cpp" PROPERTY GENERATED TRUE)
 +		else()
 +			list (APPEND _unityTargetSources "${_target}_autogen/moc_compilation.cpp")
 +			set_property (SOURCE "${_target}_autogen/moc_compilation.cpp" PROPERTY GENERATED TRUE)
 +		endif()
 +	endif()
 +	# prevent AUTOMOC, AUTOUIC and AUTORCC properties from being set when the unity target is created
 +	set (CMAKE_AUTOMOC OFF)
 +	set (CMAKE_AUTOUIC OFF)
 +	set (CMAKE_AUTORCC OFF)
 +	if (COTIRE_DEBUG)
 +		message (STATUS "add target ${_targetType} ${_unityTargetName} ${_unityTargetSubType} EXCLUDE_FROM_ALL ${_unityTargetSources}")
 +	endif()
 +	# generate unity target
 +	if ("${_targetType}" STREQUAL "EXECUTABLE")
 +		add_executable(${_unityTargetName} ${_unityTargetSubType} EXCLUDE_FROM_ALL ${_unityTargetSources})
 +	else()
 +		add_library(${_unityTargetName} ${_unityTargetSubType} EXCLUDE_FROM_ALL ${_unityTargetSources})
 +	endif()
 +	if ("${CMAKE_GENERATOR}" MATCHES "Visual Studio")
 +		# depend on original target's automoc target, if it exists
 +		if (TARGET ${_target}_automoc)
 +			add_dependencies(${_unityTargetName} ${_target}_automoc)
 +		endif()
 +	else()
 +		if (_targetAutoMoc OR _targetAutoUic OR _targetAutoRcc)
 +			# depend on the original target's implicity generated <targetname>_automoc target
 +			if (CMAKE_VERSION VERSION_LESS "3.8.0")
 +				add_dependencies(${_unityTargetName} ${_target}_automoc)
 +			else()
 +				add_dependencies(${_unityTargetName} ${_target}_autogen)
 +			endif()
 +		endif()
 +	endif()
 +	# copy output location properties
 +	set (_outputDirProperties
 +		ARCHIVE_OUTPUT_DIRECTORY ARCHIVE_OUTPUT_DIRECTORY_<CONFIG>
 +		LIBRARY_OUTPUT_DIRECTORY LIBRARY_OUTPUT_DIRECTORY_<CONFIG>
 +		RUNTIME_OUTPUT_DIRECTORY RUNTIME_OUTPUT_DIRECTORY_<CONFIG>)
 +	if (COTIRE_UNITY_OUTPUT_DIRECTORY)
 +		set (_setDefaultOutputDir TRUE)
 +		if (IS_ABSOLUTE "${COTIRE_UNITY_OUTPUT_DIRECTORY}")
 +			set (_outputDir "${COTIRE_UNITY_OUTPUT_DIRECTORY}")
 +		else()
 +			# append relative COTIRE_UNITY_OUTPUT_DIRECTORY to target's actual output directory
 +			cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName} ${_outputDirProperties})
 +			cotire_resolve_config_properties("${_configurations}" _properties ${_outputDirProperties})
 +			foreach (_property ${_properties})
 +				get_property(_outputDir TARGET ${_target} PROPERTY ${_property})
 +				if (_outputDir)
 +					get_filename_component(_outputDir "${_outputDir}/${COTIRE_UNITY_OUTPUT_DIRECTORY}" ABSOLUTE)
 +					set_property(TARGET ${_unityTargetName} PROPERTY ${_property} "${_outputDir}")
 +					set (_setDefaultOutputDir FALSE)
 +				endif()
 +			endforeach()
 +			if (_setDefaultOutputDir)
 +				get_filename_component(_outputDir "${CMAKE_CURRENT_BINARY_DIR}/${COTIRE_UNITY_OUTPUT_DIRECTORY}" ABSOLUTE)
 +			endif()
 +		endif()
 +		if (_setDefaultOutputDir)
 +			set_target_properties(${_unityTargetName} PROPERTIES
 +				ARCHIVE_OUTPUT_DIRECTORY "${_outputDir}"
 +				LIBRARY_OUTPUT_DIRECTORY "${_outputDir}"
 +				RUNTIME_OUTPUT_DIRECTORY "${_outputDir}")
 +		endif()
 +	else()
 +		cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +			${_outputDirProperties})
 +	endif()
 +	# copy output name
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		ARCHIVE_OUTPUT_NAME ARCHIVE_OUTPUT_NAME_<CONFIG>
 +		LIBRARY_OUTPUT_NAME LIBRARY_OUTPUT_NAME_<CONFIG>
 +		OUTPUT_NAME OUTPUT_NAME_<CONFIG>
 +		RUNTIME_OUTPUT_NAME RUNTIME_OUTPUT_NAME_<CONFIG>
 +		PREFIX <CONFIG>_POSTFIX SUFFIX
 +		IMPORT_PREFIX IMPORT_SUFFIX)
 +	# copy compile stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		COMPILE_DEFINITIONS COMPILE_DEFINITIONS_<CONFIG>
 +		COMPILE_FLAGS COMPILE_OPTIONS
 +		Fortran_FORMAT Fortran_MODULE_DIRECTORY
 +		INCLUDE_DIRECTORIES
 +		INTERPROCEDURAL_OPTIMIZATION INTERPROCEDURAL_OPTIMIZATION_<CONFIG>
 +		POSITION_INDEPENDENT_CODE
 +		C_COMPILER_LAUNCHER CXX_COMPILER_LAUNCHER
 +		C_INCLUDE_WHAT_YOU_USE CXX_INCLUDE_WHAT_YOU_USE
 +		C_VISIBILITY_PRESET CXX_VISIBILITY_PRESET VISIBILITY_INLINES_HIDDEN
 +		C_CLANG_TIDY CXX_CLANG_TIDY)
 +	# copy compile features
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		C_EXTENSIONS C_STANDARD C_STANDARD_REQUIRED
 +		CXX_EXTENSIONS CXX_STANDARD CXX_STANDARD_REQUIRED
 +		COMPILE_FEATURES)
 +	# copy interface stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		COMPATIBLE_INTERFACE_BOOL COMPATIBLE_INTERFACE_NUMBER_MAX COMPATIBLE_INTERFACE_NUMBER_MIN
 +		COMPATIBLE_INTERFACE_STRING
 +		INTERFACE_COMPILE_DEFINITIONS INTERFACE_COMPILE_FEATURES INTERFACE_COMPILE_OPTIONS
 +		INTERFACE_INCLUDE_DIRECTORIES INTERFACE_SOURCES
 +		INTERFACE_POSITION_INDEPENDENT_CODE INTERFACE_SYSTEM_INCLUDE_DIRECTORIES
 +		INTERFACE_AUTOUIC_OPTIONS NO_SYSTEM_FROM_IMPORTED)
 +	# copy link stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		BUILD_WITH_INSTALL_RPATH INSTALL_RPATH INSTALL_RPATH_USE_LINK_PATH SKIP_BUILD_RPATH
 +		LINKER_LANGUAGE LINK_DEPENDS LINK_DEPENDS_NO_SHARED
 +		LINK_FLAGS LINK_FLAGS_<CONFIG>
 +		LINK_INTERFACE_LIBRARIES LINK_INTERFACE_LIBRARIES_<CONFIG>
 +		LINK_INTERFACE_MULTIPLICITY LINK_INTERFACE_MULTIPLICITY_<CONFIG>
 +		LINK_SEARCH_START_STATIC LINK_SEARCH_END_STATIC
 +		STATIC_LIBRARY_FLAGS STATIC_LIBRARY_FLAGS_<CONFIG>
 +		NO_SONAME SOVERSION VERSION
 +		LINK_WHAT_YOU_USE BUILD_RPATH)
 +	# copy cmake stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		IMPLICIT_DEPENDS_INCLUDE_TRANSFORM RULE_LAUNCH_COMPILE RULE_LAUNCH_CUSTOM RULE_LAUNCH_LINK)
 +	# copy Apple platform specific stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		BUNDLE BUNDLE_EXTENSION FRAMEWORK FRAMEWORK_VERSION INSTALL_NAME_DIR
 +		MACOSX_BUNDLE MACOSX_BUNDLE_INFO_PLIST MACOSX_FRAMEWORK_INFO_PLIST MACOSX_RPATH
 +		OSX_ARCHITECTURES OSX_ARCHITECTURES_<CONFIG> PRIVATE_HEADER PUBLIC_HEADER RESOURCE XCTEST
 +		IOS_INSTALL_COMBINED XCODE_EXPLICIT_FILE_TYPE XCODE_PRODUCT_TYPE)
 +	# copy Windows platform specific stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		GNUtoMS
 +		COMPILE_PDB_NAME COMPILE_PDB_NAME_<CONFIG>
 +		COMPILE_PDB_OUTPUT_DIRECTORY COMPILE_PDB_OUTPUT_DIRECTORY_<CONFIG>
 +		PDB_NAME PDB_NAME_<CONFIG> PDB_OUTPUT_DIRECTORY PDB_OUTPUT_DIRECTORY_<CONFIG>
 +		VS_DESKTOP_EXTENSIONS_VERSION VS_DOTNET_REFERENCES VS_DOTNET_TARGET_FRAMEWORK_VERSION
 +		VS_GLOBAL_KEYWORD VS_GLOBAL_PROJECT_TYPES VS_GLOBAL_ROOTNAMESPACE
 +		VS_IOT_EXTENSIONS_VERSION VS_IOT_STARTUP_TASK
 +		VS_KEYWORD VS_MOBILE_EXTENSIONS_VERSION
 +		VS_SCC_AUXPATH VS_SCC_LOCALPATH VS_SCC_PROJECTNAME VS_SCC_PROVIDER
 +		VS_WINDOWS_TARGET_PLATFORM_MIN_VERSION
 +		VS_WINRT_COMPONENT VS_WINRT_EXTENSIONS VS_WINRT_REFERENCES
 +		WIN32_EXECUTABLE WINDOWS_EXPORT_ALL_SYMBOLS
 +		DEPLOYMENT_REMOTE_DIRECTORY VS_CONFIGURATION_TYPE
 +		VS_SDK_REFERENCES VS_USER_PROPS VS_DEBUGGER_WORKING_DIRECTORY)
 +	# copy Android platform specific stuff
 +	cotire_copy_set_properties("${_configurations}" TARGET ${_target} ${_unityTargetName}
 +		ANDROID_API ANDROID_API_MIN ANDROID_GUI
 +		ANDROID_ANT_ADDITIONAL_OPTIONS ANDROID_ARCH ANDROID_ASSETS_DIRECTORIES
 +		ANDROID_JAR_DEPENDENCIES ANDROID_JAR_DIRECTORIES ANDROID_JAVA_SOURCE_DIR
 +		ANDROID_NATIVE_LIB_DEPENDENCIES ANDROID_NATIVE_LIB_DIRECTORIES
 +		ANDROID_PROCESS_MAX ANDROID_PROGUARD ANDROID_PROGUARD_CONFIG_PATH
 +		ANDROID_SECURE_PROPS_PATH ANDROID_SKIP_ANT_STEP ANDROID_STL_TYPE)
 +	# use output name from original target
 +	get_target_property(_targetOutputName ${_unityTargetName} OUTPUT_NAME)
 +	if (NOT _targetOutputName)
 +		set_property(TARGET ${_unityTargetName} PROPERTY OUTPUT_NAME "${_target}")
 +	endif()
 +	# use export symbol from original target
 +	cotire_get_target_export_symbol("${_target}" _defineSymbol)
 +	if (_defineSymbol)
 +		set_property(TARGET ${_unityTargetName} PROPERTY DEFINE_SYMBOL "${_defineSymbol}")
 +		if ("${_targetType}" STREQUAL "EXECUTABLE")
 +			set_property(TARGET ${_unityTargetName} PROPERTY ENABLE_EXPORTS TRUE)
 +		endif()
 +	endif()
 +	cotire_init_target(${_unityTargetName})
 +	cotire_add_to_unity_all_target(${_unityTargetName})
 +	set_property(TARGET ${_target} PROPERTY COTIRE_UNITY_TARGET_NAME "${_unityTargetName}")
 +endfunction(cotire_setup_unity_build_target)
 +
 +function (cotire_target _target)
 +	set(_options "")
 +	set(_oneValueArgs "")
 +	set(_multiValueArgs LANGUAGES CONFIGURATIONS)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	if (NOT _option_LANGUAGES)
 +		get_property (_option_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES)
 +	endif()
 +	if (NOT _option_CONFIGURATIONS)
 +		cotire_get_configuration_types(_option_CONFIGURATIONS)
 +	endif()
 +	# check if cotire can be applied to target at all
 +	cotire_is_target_supported(${_target} _isSupported)
 +	if (NOT _isSupported)
 +		get_target_property(_imported ${_target} IMPORTED)
 +		get_target_property(_targetType ${_target} TYPE)
 +		if (_imported)
 +			message (WARNING "cotire: imported ${_targetType} target ${_target} cannot be cotired.")
 +		else()
 +			message (STATUS "cotire: ${_targetType} target ${_target} cannot be cotired.")
 +		endif()
 +		return()
 +	endif()
 +	# resolve alias
 +	get_target_property(_aliasName ${_target} ALIASED_TARGET)
 +	if (_aliasName)
 +		if (COTIRE_DEBUG)
 +			message (STATUS "${_target} is an alias. Applying cotire to aliased target ${_aliasName} instead.")
 +		endif()
 +		set (_target ${_aliasName})
 +	endif()
 +	# check if target needs to be cotired for build type
 +	# when using configuration types, the test is performed at build time
 +	cotire_init_cotire_target_properties(${_target})
 +	if (NOT CMAKE_CONFIGURATION_TYPES)
 +		if (CMAKE_BUILD_TYPE)
 +			list (FIND _option_CONFIGURATIONS "${CMAKE_BUILD_TYPE}" _index)
 +		else()
 +			list (FIND _option_CONFIGURATIONS "None" _index)
 +		endif()
 +		if (_index EQUAL -1)
 +			if (COTIRE_DEBUG)
 +				message (STATUS "CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} not cotired (${_option_CONFIGURATIONS})")
 +			endif()
 +			return()
 +		endif()
 +	endif()
 +	# when not using configuration types, immediately create cotire intermediate dir
 +	if (NOT CMAKE_CONFIGURATION_TYPES)
 +		cotire_get_intermediate_dir(_baseDir)
 +		file (MAKE_DIRECTORY "${_baseDir}")
 +	endif()
 +	# choose languages that apply to the target
 +	cotire_choose_target_languages("${_target}" _targetLanguages _wholeTarget ${_option_LANGUAGES})
 +	if (NOT _targetLanguages)
 +		return()
 +	endif()
 +	set (_cmds "")
 +	foreach (_language ${_targetLanguages})
 +		cotire_process_target_language("${_language}" "${_option_CONFIGURATIONS}" ${_target} ${_wholeTarget} _cmd)
 +		if (_cmd)
 +			list (APPEND _cmds ${_cmd})
 +		endif()
 +	endforeach()
 +	get_target_property(_targetAddSCU ${_target} COTIRE_ADD_UNITY_BUILD)
 +	if (_targetAddSCU)
 +		cotire_setup_unity_build_target("${_targetLanguages}" "${_option_CONFIGURATIONS}" ${_target})
 +	endif()
 +	get_target_property(_targetUsePCH ${_target} COTIRE_ENABLE_PRECOMPILED_HEADER)
 +	if (_targetUsePCH)
 +		cotire_setup_target_pch_usage("${_targetLanguages}" ${_target} ${_wholeTarget} ${_cmds})
 +		cotire_setup_pch_target("${_targetLanguages}" "${_option_CONFIGURATIONS}" ${_target})
 +		if (_targetAddSCU)
 +			cotire_setup_unity_target_pch_usage("${_targetLanguages}" ${_target})
 +		endif()
 +	endif()
 +	get_target_property(_targetAddCleanTarget ${_target} COTIRE_ADD_CLEAN)
 +	if (_targetAddCleanTarget)
 +		cotire_setup_clean_target(${_target})
 +	endif()
 +endfunction(cotire_target)
 +
 +function (cotire_map_libraries _strategy _mappedLibrariesVar)
 +	set (_mappedLibraries "")
 +	foreach (_library ${ARGN})
 +		if (_library MATCHES "^\\$<LINK_ONLY:(.+)>$")
 +			set (_libraryName "${CMAKE_MATCH_1}")
 +			set (_linkOnly TRUE)
 +			set (_objectLibrary FALSE)
 +		elseif (_library MATCHES "^\\$<TARGET_OBJECTS:(.+)>$")
 +			set (_libraryName "${CMAKE_MATCH_1}")
 +			set (_linkOnly FALSE)
 +			set (_objectLibrary TRUE)
 +		else()
 +			set (_libraryName "${_library}")
 +			set (_linkOnly FALSE)
 +			set (_objectLibrary FALSE)
 +		endif()
 +		if ("${_strategy}" MATCHES "COPY_UNITY")
 +			cotire_is_target_supported(${_libraryName} _isSupported)
 +			if (_isSupported)
 +				# use target's corresponding unity target, if available
 +				get_target_property(_libraryUnityTargetName ${_libraryName} COTIRE_UNITY_TARGET_NAME)
 +				if (TARGET "${_libraryUnityTargetName}")
 +					if (_linkOnly)
 +						list (APPEND _mappedLibraries "$<LINK_ONLY:${_libraryUnityTargetName}>")
 +					elseif (_objectLibrary)
 +						list (APPEND _mappedLibraries "$<TARGET_OBJECTS:${_libraryUnityTargetName}>")
 +					else()
 +						list (APPEND _mappedLibraries "${_libraryUnityTargetName}")
 +					endif()
 +				else()
 +					list (APPEND _mappedLibraries "${_library}")
 +				endif()
 +			else()
 +				list (APPEND _mappedLibraries "${_library}")
 +			endif()
 +		else()
 +			list (APPEND _mappedLibraries "${_library}")
 +		endif()
 +	endforeach()
 +	list (REMOVE_DUPLICATES _mappedLibraries)
 +	set (${_mappedLibrariesVar} ${_mappedLibraries} PARENT_SCOPE)
 +endfunction()
 +
 +function (cotire_target_link_libraries _target)
 +	cotire_is_target_supported(${_target} _isSupported)
 +	if (NOT _isSupported)
 +		return()
 +	endif()
 +	get_target_property(_unityTargetName ${_target} COTIRE_UNITY_TARGET_NAME)
 +	if (TARGET "${_unityTargetName}")
 +		get_target_property(_linkLibrariesStrategy ${_target} COTIRE_UNITY_LINK_LIBRARIES_INIT)
 +		if (COTIRE_DEBUG)
 +			message (STATUS "unity target ${_unityTargetName} link strategy: ${_linkLibrariesStrategy}")
 +		endif()
 +		if ("${_linkLibrariesStrategy}" MATCHES "^(COPY|COPY_UNITY)$")
 +			get_target_property(_linkLibraries ${_target} LINK_LIBRARIES)
 +			if (_linkLibraries)
 +				cotire_map_libraries("${_linkLibrariesStrategy}" _unityLinkLibraries ${_linkLibraries})
 +				set_target_properties(${_unityTargetName} PROPERTIES LINK_LIBRARIES "${_unityLinkLibraries}")
 +				if (COTIRE_DEBUG)
 +					message (STATUS "unity target ${_unityTargetName} link libraries: ${_unityLinkLibraries}")
 +				endif()
 +			endif()
 +			get_target_property(_interfaceLinkLibraries ${_target} INTERFACE_LINK_LIBRARIES)
 +			if (_interfaceLinkLibraries)
 +				cotire_map_libraries("${_linkLibrariesStrategy}" _unityLinkInterfaceLibraries ${_interfaceLinkLibraries})
 +				set_target_properties(${_unityTargetName} PROPERTIES INTERFACE_LINK_LIBRARIES "${_unityLinkInterfaceLibraries}")
 +				if (COTIRE_DEBUG)
 +					message (STATUS "unity target ${_unityTargetName} interface link libraries: ${_unityLinkInterfaceLibraries}")
 +				endif()
 +			endif()
 +		endif()
 +	endif()
 +endfunction(cotire_target_link_libraries)
 +
 +function (cotire_cleanup _binaryDir _cotireIntermediateDirName _targetName)
 +	if (_targetName)
 +		file (GLOB_RECURSE _cotireFiles "${_binaryDir}/${_targetName}*.*")
 +	else()
 +		file (GLOB_RECURSE _cotireFiles "${_binaryDir}/*.*")
 +	endif()
 +	# filter files in intermediate directory
 +	set (_filesToRemove "")
 +	foreach (_file ${_cotireFiles})
 +		get_filename_component(_dir "${_file}" DIRECTORY)
 +		get_filename_component(_dirName "${_dir}" NAME)
 +		if ("${_dirName}" STREQUAL "${_cotireIntermediateDirName}")
 +			list (APPEND _filesToRemove "${_file}")
 +		endif()
 +	endforeach()
 +	if (_filesToRemove)
 +		if (COTIRE_VERBOSE)
 +			message (STATUS "cleaning up ${_filesToRemove}")
 +		endif()
 +		file (REMOVE ${_filesToRemove})
 +	endif()
 +endfunction()
 +
 +function (cotire_init_target _targetName)
 +	if (COTIRE_TARGETS_FOLDER)
 +		set_target_properties(${_targetName} PROPERTIES FOLDER "${COTIRE_TARGETS_FOLDER}")
 +	endif()
 +	set_target_properties(${_targetName} PROPERTIES EXCLUDE_FROM_ALL TRUE)
 +	if (MSVC_IDE)
 +		set_target_properties(${_targetName} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD TRUE)
 +	endif()
 +endfunction()
 +
 +function (cotire_add_to_pch_all_target _pchTargetName)
 +	set (_targetName "${COTIRE_PCH_ALL_TARGET_NAME}")
 +	if (NOT TARGET "${_targetName}")
 +		add_custom_target("${_targetName}"
 +			WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
 +			VERBATIM)
 +		cotire_init_target("${_targetName}")
 +	endif()
 +	cotire_setup_clean_all_target()
 +	add_dependencies(${_targetName} ${_pchTargetName})
 +endfunction()
 +
 +function (cotire_add_to_unity_all_target _unityTargetName)
 +	set (_targetName "${COTIRE_UNITY_BUILD_ALL_TARGET_NAME}")
 +	if (NOT TARGET "${_targetName}")
 +		add_custom_target("${_targetName}"
 +			WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
 +			VERBATIM)
 +		cotire_init_target("${_targetName}")
 +	endif()
 +	cotire_setup_clean_all_target()
 +	add_dependencies(${_targetName} ${_unityTargetName})
 +endfunction()
 +
 +function (cotire_setup_clean_all_target)
 +	set (_targetName "${COTIRE_CLEAN_ALL_TARGET_NAME}")
 +	if (NOT TARGET "${_targetName}")
 +		cotire_set_cmd_to_prologue(_cmds)
 +		list (APPEND _cmds -P "${COTIRE_CMAKE_MODULE_FILE}" "cleanup" "${CMAKE_BINARY_DIR}" "${COTIRE_INTDIR}")
 +		add_custom_target(${_targetName}
 +			COMMAND ${_cmds}
 +			WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
 +			COMMENT "Cleaning up all cotire generated files"
 +			VERBATIM)
 +		cotire_init_target("${_targetName}")
 +	endif()
 +endfunction()
 +
 +function (cotire)
 +	set(_options "")
 +	set(_oneValueArgs "")
 +	set(_multiValueArgs LANGUAGES CONFIGURATIONS)
 +	cmake_parse_arguments(_option "${_options}" "${_oneValueArgs}" "${_multiValueArgs}" ${ARGN})
 +	set (_targets ${_option_UNPARSED_ARGUMENTS})
 +	foreach (_target ${_targets})
 +		if (TARGET ${_target})
 +			cotire_target(${_target} LANGUAGES ${_option_LANGUAGES} CONFIGURATIONS ${_option_CONFIGURATIONS})
 +		else()
 +			message (WARNING "cotire: ${_target} is not a target.")
 +		endif()
 +	endforeach()
 +	foreach (_target ${_targets})
 +		if (TARGET ${_target})
 +			cotire_target_link_libraries(${_target})
 +		endif()
 +	endforeach()
 +endfunction()
 +
 +if (CMAKE_SCRIPT_MODE_FILE)
 +
 +	# cotire is being run in script mode
 +	# locate -P on command args
 +	set (COTIRE_ARGC -1)
 +	foreach (_index RANGE ${CMAKE_ARGC})
 +		if (COTIRE_ARGC GREATER -1)
 +			set (COTIRE_ARGV${COTIRE_ARGC} "${CMAKE_ARGV${_index}}")
 +			math (EXPR COTIRE_ARGC "${COTIRE_ARGC} + 1")
 +		elseif ("${CMAKE_ARGV${_index}}" STREQUAL "-P")
 +			set (COTIRE_ARGC 0)
 +		endif()
 +	endforeach()
 +
 +	# include target script if available
 +	if ("${COTIRE_ARGV2}" MATCHES "\\.cmake$")
 +		# the included target scripts sets up additional variables relating to the target (e.g., COTIRE_TARGET_SOURCES)
 +		include("${COTIRE_ARGV2}")
 +	endif()
 +
 +	if (COTIRE_DEBUG)
 +		message (STATUS "${COTIRE_ARGV0} ${COTIRE_ARGV1} ${COTIRE_ARGV2} ${COTIRE_ARGV3} ${COTIRE_ARGV4} ${COTIRE_ARGV5}")
 +	endif()
 +
 +	if (NOT COTIRE_BUILD_TYPE)
 +		set (COTIRE_BUILD_TYPE "None")
 +	endif()
 +	string (TOUPPER "${COTIRE_BUILD_TYPE}" _upperConfig)
 +	set (_includeDirs ${COTIRE_TARGET_INCLUDE_DIRECTORIES_${_upperConfig}})
 +	set (_systemIncludeDirs ${COTIRE_TARGET_SYSTEM_INCLUDE_DIRECTORIES_${_upperConfig}})
 +	set (_compileDefinitions ${COTIRE_TARGET_COMPILE_DEFINITIONS_${_upperConfig}})
 +	set (_compileFlags ${COTIRE_TARGET_COMPILE_FLAGS_${_upperConfig}})
 +	# check if target has been cotired for actual build type COTIRE_BUILD_TYPE
 +	list (FIND COTIRE_TARGET_CONFIGURATION_TYPES "${COTIRE_BUILD_TYPE}" _index)
 +	if (_index GREATER -1)
 +		set (_sources ${COTIRE_TARGET_SOURCES})
 +		set (_sourcesDefinitions ${COTIRE_TARGET_SOURCES_COMPILE_DEFINITIONS_${_upperConfig}})
 +	else()
 +		if (COTIRE_DEBUG)
 +			message (STATUS "COTIRE_BUILD_TYPE=${COTIRE_BUILD_TYPE} not cotired (${COTIRE_TARGET_CONFIGURATION_TYPES})")
 +		endif()
 +		set (_sources "")
 +		set (_sourcesDefinitions "")
 +	endif()
 +	set (_targetPreUndefs ${COTIRE_TARGET_PRE_UNDEFS})
 +	set (_targetPostUndefs ${COTIRE_TARGET_POST_UNDEFS})
 +	set (_sourcesPreUndefs ${COTIRE_TARGET_SOURCES_PRE_UNDEFS})
 +	set (_sourcesPostUndefs ${COTIRE_TARGET_SOURCES_POST_UNDEFS})
 +
 +	if ("${COTIRE_ARGV1}" STREQUAL "unity")
 +
 +		if (XCODE)
 +			# executing pre-build action under Xcode, check dependency on target script
 +			set (_dependsOption DEPENDS "${COTIRE_ARGV2}")
 +		else()
 +			# executing custom command, no need to re-check for dependencies
 +			set (_dependsOption "")
 +		endif()
 +
 +		cotire_select_unity_source_files("${COTIRE_ARGV3}" _sources ${_sources})
 +
 +		cotire_generate_unity_source(
 +			"${COTIRE_ARGV3}" ${_sources}
 +			LANGUAGE "${COTIRE_TARGET_LANGUAGE}"
 +			SOURCES_COMPILE_DEFINITIONS ${_sourcesDefinitions}
 +			PRE_UNDEFS ${_targetPreUndefs}
 +			POST_UNDEFS ${_targetPostUndefs}
 +			SOURCES_PRE_UNDEFS ${_sourcesPreUndefs}
 +			SOURCES_POST_UNDEFS ${_sourcesPostUndefs}
 +			${_dependsOption})
 +
 +	elseif ("${COTIRE_ARGV1}" STREQUAL "prefix")
 +
 +		if (XCODE)
 +			# executing pre-build action under Xcode, check dependency on unity file and prefix dependencies
 +			set (_dependsOption DEPENDS "${COTIRE_ARGV4}" ${COTIRE_TARGET_PREFIX_DEPENDS})
 +		else()
 +			# executing custom command, no need to re-check for dependencies
 +			set (_dependsOption "")
 +		endif()
 +
 +		set (_files "")
 +		foreach (_index RANGE 4 ${COTIRE_ARGC})
 +			if (COTIRE_ARGV${_index})
 +				list (APPEND _files "${COTIRE_ARGV${_index}}")
 +			endif()
 +		endforeach()
 +
 +		cotire_generate_prefix_header(
 +			"${COTIRE_ARGV3}" ${_files}
 +			COMPILER_LAUNCHER "${COTIRE_TARGET_${COTIRE_TARGET_LANGUAGE}_COMPILER_LAUNCHER}"
 +			COMPILER_EXECUTABLE "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER}"
 +			COMPILER_ARG1 ${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_ARG1}
 +			COMPILER_ID "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_ID}"
 +			COMPILER_VERSION "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_VERSION}"
 +			LANGUAGE "${COTIRE_TARGET_LANGUAGE}"
 +			IGNORE_PATH "${COTIRE_TARGET_IGNORE_PATH};${COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_PATH}"
 +			INCLUDE_PATH ${COTIRE_TARGET_INCLUDE_PATH}
 +			IGNORE_EXTENSIONS "${CMAKE_${COTIRE_TARGET_LANGUAGE}_SOURCE_FILE_EXTENSIONS};${COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_EXTENSIONS}"
 +			INCLUDE_PRIORITY_PATH ${COTIRE_TARGET_INCLUDE_PRIORITY_PATH}
 +			INCLUDE_DIRECTORIES ${_includeDirs}
 +			SYSTEM_INCLUDE_DIRECTORIES ${_systemIncludeDirs}
 +			COMPILE_DEFINITIONS ${_compileDefinitions}
 +			COMPILE_FLAGS ${_compileFlags}
 +			${_dependsOption})
 +
 +	elseif ("${COTIRE_ARGV1}" STREQUAL "precompile")
 +
 +		set (_files "")
 +		foreach (_index RANGE 5 ${COTIRE_ARGC})
 +			if (COTIRE_ARGV${_index})
 +				list (APPEND _files "${COTIRE_ARGV${_index}}")
 +			endif()
 +		endforeach()
 +
 +		cotire_precompile_prefix_header(
 +			"${COTIRE_ARGV3}" "${COTIRE_ARGV4}" "${COTIRE_ARGV5}"
 +			COMPILER_LAUNCHER "${COTIRE_TARGET_${COTIRE_TARGET_LANGUAGE}_COMPILER_LAUNCHER}"
 +			COMPILER_EXECUTABLE "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER}"
 +			COMPILER_ARG1 ${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_ARG1}
 +			COMPILER_ID "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_ID}"
 +			COMPILER_VERSION "${CMAKE_${COTIRE_TARGET_LANGUAGE}_COMPILER_VERSION}"
 +			LANGUAGE "${COTIRE_TARGET_LANGUAGE}"
 +			INCLUDE_DIRECTORIES ${_includeDirs}
 +			SYSTEM_INCLUDE_DIRECTORIES ${_systemIncludeDirs}
 +			COMPILE_DEFINITIONS ${_compileDefinitions}
 +			COMPILE_FLAGS ${_compileFlags})
 +
 +	elseif ("${COTIRE_ARGV1}" STREQUAL "combine")
 +
 +		if (COTIRE_TARGET_LANGUAGE)
 +			set (_combinedFile "${COTIRE_ARGV3}")
 +			set (_startIndex 4)
 +		else()
 +			set (_combinedFile "${COTIRE_ARGV2}")
 +			set (_startIndex 3)
 +		endif()
 +		set (_files "")
 +		foreach (_index RANGE ${_startIndex} ${COTIRE_ARGC})
 +			if (COTIRE_ARGV${_index})
 +				list (APPEND _files "${COTIRE_ARGV${_index}}")
 +			endif()
 +		endforeach()
 +
 +		if (XCODE)
 +			# executing pre-build action under Xcode, check dependency on files to be combined
 +			set (_dependsOption DEPENDS ${_files})
 +		else()
 +			# executing custom command, no need to re-check for dependencies
 +			set (_dependsOption "")
 +		endif()
 +
 +		if (COTIRE_TARGET_LANGUAGE)
 +			cotire_generate_unity_source(
 +				"${_combinedFile}" ${_files}
 +				LANGUAGE "${COTIRE_TARGET_LANGUAGE}"
 +				${_dependsOption})
 +		else()
 +			cotire_generate_unity_source("${_combinedFile}" ${_files} ${_dependsOption})
 +		endif()
 +
 +	elseif ("${COTIRE_ARGV1}" STREQUAL "cleanup")
 +
 +		cotire_cleanup("${COTIRE_ARGV2}" "${COTIRE_ARGV3}" "${COTIRE_ARGV4}")
 +
 +	else()
 +		message (FATAL_ERROR "cotire: unknown command \"${COTIRE_ARGV1}\".")
 +	endif()
 +
 +else()
 +
 +	# cotire is being run in include mode
 +	# set up all variable and property definitions
 +
 +	if (NOT DEFINED COTIRE_DEBUG_INIT)
 +		if (DEFINED COTIRE_DEBUG)
 +			set (COTIRE_DEBUG_INIT ${COTIRE_DEBUG})
 +		else()
 +			set (COTIRE_DEBUG_INIT FALSE)
 +		endif()
 +	endif()
 +	option (COTIRE_DEBUG "Enable cotire debugging output?" ${COTIRE_DEBUG_INIT})
 +
 +	if (NOT DEFINED COTIRE_VERBOSE_INIT)
 +		if (DEFINED COTIRE_VERBOSE)
 +			set (COTIRE_VERBOSE_INIT ${COTIRE_VERBOSE})
 +		else()
 +			set (COTIRE_VERBOSE_INIT FALSE)
 +		endif()
 +	endif()
 +	option (COTIRE_VERBOSE "Enable cotire verbose output?" ${COTIRE_VERBOSE_INIT})
 +
 +	set (COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_EXTENSIONS "inc;inl;ipp" CACHE STRING
 +		"Ignore headers with the listed file extensions from the generated prefix header.")
 +
 +	set (COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_PATH "" CACHE STRING
 +		"Ignore headers from these directories when generating the prefix header.")
 +
 +	set (COTIRE_UNITY_SOURCE_EXCLUDE_EXTENSIONS "m;mm" CACHE STRING
 +		"Ignore sources with the listed file extensions from the generated unity source.")
 +
 +	set (COTIRE_MINIMUM_NUMBER_OF_TARGET_SOURCES "3" CACHE STRING
 +		"Minimum number of sources in target required to enable use of precompiled header.")
 +
 +	if (NOT DEFINED COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES_INIT)
 +		if (DEFINED COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES)
 +			set (COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES_INIT ${COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES})
 +		elseif ("${CMAKE_GENERATOR}" MATCHES "JOM|Ninja|Visual Studio")
 +			# enable parallelization for generators that run multiple jobs by default
 +			set (COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES_INIT "-j")
 +		else()
 +			set (COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES_INIT "0")
 +		endif()
 +	endif()
 +	set (COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES "${COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES_INIT}" CACHE STRING
 +		"Maximum number of source files to include in a single unity source file.")
 +
 +	if (NOT COTIRE_PREFIX_HEADER_FILENAME_SUFFIX)
 +		set (COTIRE_PREFIX_HEADER_FILENAME_SUFFIX "_prefix")
 +	endif()
 +	if (NOT COTIRE_UNITY_SOURCE_FILENAME_SUFFIX)
 +		set (COTIRE_UNITY_SOURCE_FILENAME_SUFFIX "_unity")
 +	endif()
 +	if (NOT COTIRE_INTDIR)
 +		set (COTIRE_INTDIR "cotire")
 +	endif()
 +	if (NOT COTIRE_PCH_ALL_TARGET_NAME)
 +		set (COTIRE_PCH_ALL_TARGET_NAME "all_pch")
 +	endif()
 +	if (NOT COTIRE_UNITY_BUILD_ALL_TARGET_NAME)
 +		set (COTIRE_UNITY_BUILD_ALL_TARGET_NAME "all_unity")
 +	endif()
 +	if (NOT COTIRE_CLEAN_ALL_TARGET_NAME)
 +		set (COTIRE_CLEAN_ALL_TARGET_NAME "clean_cotire")
 +	endif()
 +	if (NOT COTIRE_CLEAN_TARGET_SUFFIX)
 +		set (COTIRE_CLEAN_TARGET_SUFFIX "_clean_cotire")
 +	endif()
 +	if (NOT COTIRE_PCH_TARGET_SUFFIX)
 +		set (COTIRE_PCH_TARGET_SUFFIX "_pch")
 +	endif()
 +	if (MSVC)
 +		# MSVC default PCH memory scaling factor of 100 percent (75 MB) is too small for template heavy C++ code
 +		# use a bigger default factor of 170 percent (128 MB)
 +		if (NOT DEFINED COTIRE_PCH_MEMORY_SCALING_FACTOR)
 +			set (COTIRE_PCH_MEMORY_SCALING_FACTOR "170")
 +		endif()
 +	endif()
 +	if (NOT COTIRE_UNITY_BUILD_TARGET_SUFFIX)
 +		set (COTIRE_UNITY_BUILD_TARGET_SUFFIX "_unity")
 +	endif()
 +	if (NOT DEFINED COTIRE_TARGETS_FOLDER)
 +		set (COTIRE_TARGETS_FOLDER "cotire")
 +	endif()
 +	if (NOT DEFINED COTIRE_UNITY_OUTPUT_DIRECTORY)
 +		if ("${CMAKE_GENERATOR}" MATCHES "Ninja")
 +			# generated Ninja build files do not work if the unity target produces the same output file as the cotired target
 +			set (COTIRE_UNITY_OUTPUT_DIRECTORY "unity")
 +		else()
 +			set (COTIRE_UNITY_OUTPUT_DIRECTORY "")
 +		endif()
 +	endif()
 +
 +	# define cotire cache variables
 +
 +	define_property(
 +		CACHED_VARIABLE PROPERTY "COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_PATH"
 +		BRIEF_DOCS "Ignore headers from these directories when generating the prefix header."
 +		FULL_DOCS
 +			"The variable can be set to a semicolon separated list of include directories."
 +			"If a header file is found in one of these directories or sub-directories, it will be excluded from the generated prefix header."
 +			"If not defined, defaults to empty list."
 +	)
 +
 +	define_property(
 +		CACHED_VARIABLE PROPERTY "COTIRE_ADDITIONAL_PREFIX_HEADER_IGNORE_EXTENSIONS"
 +		BRIEF_DOCS "Ignore includes with the listed file extensions from the generated prefix header."
 +		FULL_DOCS
 +			"The variable can be set to a semicolon separated list of file extensions."
 +			"If a header file extension matches one in the list, it will be excluded from the generated prefix header."
 +			"Includes with an extension in CMAKE_<LANG>_SOURCE_FILE_EXTENSIONS are always ignored."
 +			"If not defined, defaults to inc;inl;ipp."
 +	)
 +
 +	define_property(
 +		CACHED_VARIABLE PROPERTY "COTIRE_UNITY_SOURCE_EXCLUDE_EXTENSIONS"
 +		BRIEF_DOCS "Exclude sources with the listed file extensions from the generated unity source."
 +		FULL_DOCS
 +			"The variable can be set to a semicolon separated list of file extensions."
 +			"If a source file extension matches one in the list, it will be excluded from the generated unity source file."
 +			"Source files with an extension in CMAKE_<LANG>_IGNORE_EXTENSIONS are always excluded."
 +			"If not defined, defaults to m;mm."
 +	)
 +
 +	define_property(
 +		CACHED_VARIABLE PROPERTY "COTIRE_MINIMUM_NUMBER_OF_TARGET_SOURCES"
 +		BRIEF_DOCS "Minimum number of sources in target required to enable use of precompiled header."
 +		FULL_DOCS
 +			"The variable can be set to an integer > 0."
 +			"If a target contains less than that number of source files, cotire will not enable the use of the precompiled header for the target."
 +			"If not defined, defaults to 3."
 +	)
 +
 +	define_property(
 +		CACHED_VARIABLE PROPERTY "COTIRE_MAXIMUM_NUMBER_OF_UNITY_INCLUDES"
 +		BRIEF_DOCS "Maximum number of source files to include in a single unity source file."
 +		FULL_DOCS
 +			"This may be set to an integer >= 0."
 +			"If 0, cotire will only create a single unity source file."
 +			"If a target contains more than that number of source files, cotire will create multiple unity source files for it."
 +			"Can be set to \"-j\" to optimize the count of unity source files for the number of available processor cores."
 +			"Can be set to \"-j jobs\" to optimize the number of unity source files for the given number of simultaneous jobs."
 +			"Is used to initialize the target property COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES."
 +			"Defaults to \"-j\" for the generators Visual Studio, JOM or Ninja. Defaults to 0 otherwise."
 +	)
 +
 +	# define cotire directory properties
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_ENABLE_PRECOMPILED_HEADER"
 +		BRIEF_DOCS "Modify build command of cotired targets added in this directory to make use of the generated precompiled header."
 +		FULL_DOCS
 +			"See target property COTIRE_ENABLE_PRECOMPILED_HEADER."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_ADD_UNITY_BUILD"
 +		BRIEF_DOCS "Add a new target that performs a unity build for cotired targets added in this directory."
 +		FULL_DOCS
 +			"See target property COTIRE_ADD_UNITY_BUILD."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_ADD_CLEAN"
 +		BRIEF_DOCS "Add a new target that cleans all cotire generated files for cotired targets added in this directory."
 +		FULL_DOCS
 +			"See target property COTIRE_ADD_CLEAN."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_PREFIX_HEADER_IGNORE_PATH"
 +		BRIEF_DOCS "Ignore headers from these directories when generating the prefix header."
 +		FULL_DOCS
 +			"See target property COTIRE_PREFIX_HEADER_IGNORE_PATH."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_PREFIX_HEADER_INCLUDE_PATH"
 +		BRIEF_DOCS "Honor headers from these directories when generating the prefix header."
 +		FULL_DOCS
 +			"See target property COTIRE_PREFIX_HEADER_INCLUDE_PATH."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH"
 +		BRIEF_DOCS "Header paths matching one of these directories are put at the top of the prefix header."
 +		FULL_DOCS
 +			"See target property COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_UNITY_SOURCE_PRE_UNDEFS"
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file before the inclusion of each source file."
 +		FULL_DOCS
 +			"See target property COTIRE_UNITY_SOURCE_PRE_UNDEFS."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_UNITY_SOURCE_POST_UNDEFS"
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file after the inclusion of each source file."
 +		FULL_DOCS
 +			"See target property COTIRE_UNITY_SOURCE_POST_UNDEFS."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES"
 +		BRIEF_DOCS "Maximum number of source files to include in a single unity source file."
 +		FULL_DOCS
 +			"See target property COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES."
 +	)
 +
 +	define_property(
 +		DIRECTORY PROPERTY "COTIRE_UNITY_LINK_LIBRARIES_INIT"
 +		BRIEF_DOCS "Define strategy for setting up the unity target's link libraries."
 +		FULL_DOCS
 +			"See target property COTIRE_UNITY_LINK_LIBRARIES_INIT."
 +	)
 +
 +	# define cotire target properties
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_ENABLE_PRECOMPILED_HEADER" INHERITED
 +		BRIEF_DOCS "Modify this target's build command to make use of the generated precompiled header."
 +		FULL_DOCS
 +			"If this property is set to TRUE, cotire will modify the build command to make use of the generated precompiled header."
 +			"Irrespective of the value of this property, cotire will setup custom commands to generate the unity source and prefix header for the target."
 +			"For makefile based generators cotire will also set up a custom target to manually invoke the generation of the precompiled header."
 +			"The target name will be set to this target's name with the suffix _pch appended."
 +			"Inherited from directory."
 +			"Defaults to TRUE."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_ADD_UNITY_BUILD" INHERITED
 +		BRIEF_DOCS "Add a new target that performs a unity build for this target."
 +		FULL_DOCS
 +			"If this property is set to TRUE, cotire creates a new target of the same type that uses the generated unity source file instead of the target sources."
 +			"Most of the relevant target properties will be copied from this target to the new unity build target."
 +			"Target dependencies and linked libraries have to be manually set up for the new unity build target."
 +			"The unity target name will be set to this target's name with the suffix _unity appended."
 +			"Inherited from directory."
 +			"Defaults to TRUE."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_ADD_CLEAN" INHERITED
 +		BRIEF_DOCS "Add a new target that cleans all cotire generated files for this target."
 +		FULL_DOCS
 +			"If this property is set to TRUE, cotire creates a new target that clean all files (unity source, prefix header, precompiled header)."
 +			"The clean target name will be set to this target's name with the suffix _clean_cotire appended."
 +			"Inherited from directory."
 +			"Defaults to FALSE."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_PREFIX_HEADER_IGNORE_PATH" INHERITED
 +		BRIEF_DOCS "Ignore headers from these directories when generating the prefix header."
 +		FULL_DOCS
 +			"The property can be set to a list of directories."
 +			"If a header file is found in one of these directories or sub-directories, it will be excluded from the generated prefix header."
 +			"Inherited from directory."
 +			"If not set, this property is initialized to \${CMAKE_SOURCE_DIR};\${CMAKE_BINARY_DIR}."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_PREFIX_HEADER_INCLUDE_PATH" INHERITED
 +		BRIEF_DOCS "Honor headers from these directories when generating the prefix header."
 +		FULL_DOCS
 +			"The property can be set to a list of directories."
 +			"If a header file is found in one of these directories or sub-directories, it will be included in the generated prefix header."
 +			"If a header file is both selected by COTIRE_PREFIX_HEADER_IGNORE_PATH and COTIRE_PREFIX_HEADER_INCLUDE_PATH,"
 +			"the option which yields the closer relative path match wins."
 +			"Inherited from directory."
 +			"If not set, this property is initialized to the empty list."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_PREFIX_HEADER_INCLUDE_PRIORITY_PATH" INHERITED
 +		BRIEF_DOCS "Header paths matching one of these directories are put at the top of prefix header."
 +		FULL_DOCS
 +			"The property can be set to a list of directories."
 +			"Header file paths matching one of these directories will be inserted at the beginning of the generated prefix header."
 +			"Header files are sorted according to the order of the directories in the property."
 +			"If not set, this property is initialized to the empty list."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_UNITY_SOURCE_PRE_UNDEFS" INHERITED
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file before the inclusion of each target source file."
 +		FULL_DOCS
 +			"This may be set to a semicolon-separated list of preprocessor symbols."
 +			"cotire will add corresponding #undef directives to the generated unit source file before each target source file."
 +			"Inherited from directory."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_UNITY_SOURCE_POST_UNDEFS" INHERITED
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file after the inclusion of each target source file."
 +		FULL_DOCS
 +			"This may be set to a semicolon-separated list of preprocessor symbols."
 +			"cotire will add corresponding #undef directives to the generated unit source file after each target source file."
 +			"Inherited from directory."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES" INHERITED
 +		BRIEF_DOCS "Maximum number of source files to include in a single unity source file."
 +		FULL_DOCS
 +			"This may be set to an integer > 0."
 +			"If a target contains more than that number of source files, cotire will create multiple unity build files for it."
 +			"If not set, cotire will only create a single unity source file."
 +			"Inherited from directory."
 +			"Defaults to empty."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_<LANG>_UNITY_SOURCE_INIT"
 +		BRIEF_DOCS "User provided unity source file to be used instead of the automatically generated one."
 +		FULL_DOCS
 +			"If set, cotire will only add the given file(s) to the generated unity source file."
 +			"If not set, cotire will add all the target source files to the generated unity source file."
 +			"The property can be set to a user provided unity source file."
 +			"Defaults to empty."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_<LANG>_PREFIX_HEADER_INIT"
 +		BRIEF_DOCS "User provided prefix header file to be used instead of the automatically generated one."
 +		FULL_DOCS
 +			"If set, cotire will add the given header file(s) to the generated prefix header file."
 +			"If not set, cotire will generate a prefix header by tracking the header files included by the unity source file."
 +			"The property can be set to a user provided prefix header file (e.g., stdafx.h)."
 +			"Defaults to empty."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_UNITY_LINK_LIBRARIES_INIT" INHERITED
 +		BRIEF_DOCS "Define strategy for setting up unity target's link libraries."
 +		FULL_DOCS
 +			"If this property is empty or set to NONE, the generated unity target's link libraries have to be set up manually."
 +			"If this property is set to COPY, the unity target's link libraries will be copied from this target."
 +			"If this property is set to COPY_UNITY, the unity target's link libraries will be copied from this target with considering existing unity targets."
 +			"Inherited from directory."
 +			"Defaults to empty."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_<LANG>_UNITY_SOURCE"
 +		BRIEF_DOCS "Read-only property. The generated <LANG> unity source file(s)."
 +		FULL_DOCS
 +			"cotire sets this property to the path of the generated <LANG> single computation unit source file for the target."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_<LANG>_PREFIX_HEADER"
 +		BRIEF_DOCS "Read-only property. The generated <LANG> prefix header file."
 +		FULL_DOCS
 +			"cotire sets this property to the full path of the generated <LANG> language prefix header for the target."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_<LANG>_PRECOMPILED_HEADER"
 +		BRIEF_DOCS "Read-only property. The generated <LANG> precompiled header file."
 +		FULL_DOCS
 +			"cotire sets this property to the full path of the generated <LANG> language precompiled header binary for the target."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		TARGET PROPERTY "COTIRE_UNITY_TARGET_NAME"
 +		BRIEF_DOCS "The name of the generated unity build target corresponding to this target."
 +		FULL_DOCS
 +			"This property can be set to the desired name of the unity target that will be created by cotire."
 +			"If not set, the unity target name will be set to this target's name with the suffix _unity appended."
 +			"After this target has been processed by cotire, the property is set to the actual name of the generated unity target."
 +			"Defaults to empty string."
 +	)
 +
 +	# define cotire source properties
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_EXCLUDED"
 +		BRIEF_DOCS "Do not modify source file's build command."
 +		FULL_DOCS
 +			"If this property is set to TRUE, the source file's build command will not be modified to make use of the precompiled header."
 +			"The source file will also be excluded from the generated unity source file."
 +			"Source files that have their COMPILE_FLAGS property set will be excluded by default."
 +			"Defaults to FALSE."
 +	)
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_DEPENDENCY"
 +		BRIEF_DOCS "Add this source file to dependencies of the automatically generated prefix header file."
 +		FULL_DOCS
 +			"If this property is set to TRUE, the source file is added to dependencies of the generated prefix header file."
 +			"If the file is modified, cotire will re-generate the prefix header source upon build."
 +			"Defaults to FALSE."
 +	)
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_UNITY_SOURCE_PRE_UNDEFS"
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file before the inclusion of this source file."
 +		FULL_DOCS
 +			"This may be set to a semicolon-separated list of preprocessor symbols."
 +			"cotire will add corresponding #undef directives to the generated unit source file before this file is included."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_UNITY_SOURCE_POST_UNDEFS"
 +		BRIEF_DOCS "Preprocessor undefs to place in the generated unity source file after the inclusion of this source file."
 +		FULL_DOCS
 +			"This may be set to a semicolon-separated list of preprocessor symbols."
 +			"cotire will add corresponding #undef directives to the generated unit source file after this file is included."
 +			"Defaults to empty string."
 +	)
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_START_NEW_UNITY_SOURCE"
 +		BRIEF_DOCS "Start a new unity source file which includes this source file as the first one."
 +		FULL_DOCS
 +			"If this property is set to TRUE, cotire will complete the current unity file and start a new one."
 +			"The new unity source file will include this source file as the first one."
 +			"This property essentially works as a separator for unity source files."
 +			"Defaults to FALSE."
 +	)
 +
 +	define_property(
 +		SOURCE PROPERTY "COTIRE_TARGET"
 +		BRIEF_DOCS "Read-only property. Mark this source file as cotired for the given target."
 +		FULL_DOCS
 +			"cotire sets this property to the name of target, that the source file's build command has been altered for."
 +			"Defaults to empty string."
 +	)
 +
 +	message (STATUS "cotire ${COTIRE_CMAKE_MODULE_VERSION} loaded.")
 +
 +endif()
\ No newline at end of file diff --git a/cmake/opentrack-boilerplate.cmake b/cmake/opentrack-boilerplate.cmake index 36c8d666..89127679 100644 --- a/cmake/opentrack-boilerplate.cmake +++ b/cmake/opentrack-boilerplate.cmake @@ -108,6 +108,8 @@ function(otr_install_pdb_current_project target)      endif()  endfunction() +include(cotire) +  function(otr_module n_)      message(STATUS "module ${n_}")      cmake_parse_arguments(arg @@ -193,6 +195,8 @@ function(otr_module n_)      set_property(GLOBAL APPEND PROPERTY opentrack-all-modules "${n}")      set_property(GLOBAL APPEND PROPERTY opentrack-all-source-dirs "${CMAKE_CURRENT_SOURCE_DIR}") + +    cotire(${n})  endfunction()  function(otr_prop type) | 
