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khanat-opennel-code/code/CMakeModules/PCHSupport.cmake

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CMake
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# - Try to find precompiled headers support for GCC 3.4 and 4.x (and MSVC)
# Once done this will define:
#
# Variable:
# PCHSupport_FOUND
#
# ADD_PRECOMPILED_HEADER _targetName _inputh _inputcpp
# ADD_PRECOMPILED_HEADER_TO_TARGET _targetName _input _pch_output_to_use
# ADD_NATIVE_PRECOMPILED_HEADER _targetName _inputh _inputcpp
IF(MSVC)
SET(PCHSupport_FOUND TRUE)
SET(_PCH_include_prefix "/I")
ELSE(MSVC)
IF(CMAKE_COMPILER_IS_GNUCXX)
EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
OUTPUT_VARIABLE gcc_compiler_version)
IF(gcc_compiler_version MATCHES "^4\\.1(\\.[0-9]+)?")
SET(PCHSupport_FOUND FALSE)
ELSEIF(gcc_compiler_version MATCHES "^4\\.[0-9]+(\\.[0-9]+)?")
SET(PCHSupport_FOUND TRUE)
ENDIF(gcc_compiler_version MATCHES "^4\\.1(\\.[0-9]+)?")
ELSE(CMAKE_COMPILER_IS_GNUCXX)
# TODO: make tests for other compilers than GCC
SET(PCHSupport_FOUND TRUE)
ENDIF(CMAKE_COMPILER_IS_GNUCXX)
SET(_PCH_include_prefix "-I")
ENDIF(MSVC)
# Set PCH_FLAGS for common flags, PCH_ARCH_XXX_FLAGS for specific archs flags and PCH_ARCHS for archs
MACRO(PCH_SET_COMPILE_FLAGS _target)
SET(PCH_FLAGS)
SET(PCH_ARCHS)
SET(FLAGS)
LIST(APPEND _FLAGS ${CMAKE_CXX_FLAGS})
STRING(TOUPPER "${CMAKE_BUILD_TYPE}" _UPPER_BUILD)
LIST(APPEND _FLAGS " ${CMAKE_CXX_FLAGS_${_UPPER_BUILD}}")
IF(NOT MSVC)
GET_TARGET_PROPERTY(_targetType ${_target} TYPE)
IF(${_targetType} STREQUAL SHARED_LIBRARY OR ${_targetType} STREQUAL MODULE_LIBRARY)
LIST(APPEND _FLAGS " -fPIC")
ENDIF(${_targetType} STREQUAL SHARED_LIBRARY OR ${_targetType} STREQUAL MODULE_LIBRARY)
ENDIF(NOT MSVC)
GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES)
FOREACH(item ${DIRINC})
LIST(APPEND _FLAGS " ${_PCH_include_prefix}\"${item}\"")
ENDFOREACH(item)
# Required for CMake 2.6
SET(GLOBAL_DEFINITIONS)
GET_DIRECTORY_PROPERTY(DEFINITIONS COMPILE_DEFINITIONS)
FOREACH(item ${DEFINITIONS})
LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
ENDFOREACH(item)
GET_DIRECTORY_PROPERTY(DEFINITIONS COMPILE_DEFINITIONS_${_UPPER_BUILD})
FOREACH(item ${DEFINITIONS})
LIST(APPEND GLOBAL_DEFINITIONS " -D${item}")
ENDFOREACH(item)
GET_TARGET_PROPERTY(oldProps ${_target} COMPILE_FLAGS)
IF(oldProps)
LIST(APPEND _FLAGS " ${oldProps}")
ENDIF(oldProps)
GET_TARGET_PROPERTY(oldPropsBuild ${_target} COMPILE_FLAGS_${_UPPER_BUILD})
IF(oldPropsBuild)
LIST(APPEND _FLAGS " ${oldPropsBuild}")
ENDIF(oldPropsBuild)
GET_DIRECTORY_PROPERTY(_directory_flags DEFINITIONS)
GET_DIRECTORY_PROPERTY(_directory_definitions DIRECTORY ${CMAKE_SOURCE_DIR} DEFINITIONS)
LIST(APPEND _FLAGS " ${GLOBAL_DEFINITIONS}")
LIST(APPEND _FLAGS " ${_directory_flags}")
LIST(APPEND _FLAGS " ${_directory_definitions}")
STRING(REGEX REPLACE " +" " " _FLAGS ${_FLAGS})
# Format definitions
SEPARATE_ARGUMENTS(_FLAGS)
IF(CLANG)
# Determining all architectures and get common flags
SET(_ARCH_NEXT)
SET(_XARCH_NEXT)
FOREACH(item ${_FLAGS})
IF(_ARCH_NEXT)
LIST(FIND PCH_ARCHS ${item} ITEM_FOUND)
IF(ITEM_FOUND EQUAL -1)
LIST(APPEND PCH_ARCHS ${item})
STRING(TOUPPER "${item}" _UPPER_ARCH)
SET(PCH_ARCH_${_UPPER_ARCH}_FLAGS "-arch" ${item})
ENDIF(ITEM_FOUND EQUAL -1)
SET(_ARCH_NEXT OFF)
ELSEIF(_XARCH_NEXT)
SET(_XARCH_NEXT OFF)
ELSE(_ARCH_NEXT)
IF(item MATCHES "^-arch")
SET(_ARCH_NEXT ON)
ELSEIF(item MATCHES "^-Xarch_")
STRING(REGEX REPLACE "-Xarch_([a-z0-9_]+)" "\\1" item ${item})
LIST(FIND PCH_ARCHS ${item} ITEM_FOUND)
IF(ITEM_FOUND EQUAL -1)
LIST(APPEND PCH_ARCHS ${item})
STRING(TOUPPER "${item}" _UPPER_ARCH)
SET(PCH_ARCH_${_UPPER_ARCH}_FLAGS "-arch" ${item})
ENDIF(ITEM_FOUND EQUAL -1)
SET(_XARCH_NEXT ON)
ELSE(item MATCHES "^-arch")
LIST(APPEND PCH_FLAGS ${item})
ENDIF(item MATCHES "^-arch")
ENDIF(_ARCH_NEXT)
ENDFOREACH(item)
# Get architcture specific flags
SET(_XARCH_NEXT)
FOREACH(item ${_FLAGS})
IF(_XARCH_NEXT)
STRING(TOUPPER "${_XARCH_NEXT}" _UPPER_XARCH)
LIST(APPEND PCH_ARCH_${_UPPER_XARCH}_FLAGS ${item})
SET(_XARCH_NEXT OFF)
ELSE(_XARCH_NEXT)
IF(item MATCHES "^-Xarch_")
STRING(SUBSTRING "${item}" 7 -1 _XARCH_NEXT)
ENDIF(item MATCHES "^-Xarch_")
ENDIF(_XARCH_NEXT)
ENDFOREACH(item)
# Remove duplicated architectures
IF(_ARCHS AND PCH_ARCHS)
LIST(REMOVE_DUPLICATES PCH_ARCHS)
ENDIF(_ARCHS AND PCH_ARCHS)
ELSE(CLANG)
SET(PCH_FLAGS ${_FLAGS})
ENDIF(CLANG)
IF(PCH_FLAGS)
LIST(REMOVE_DUPLICATES PCH_FLAGS)
ENDIF(PCH_FLAGS)
ENDMACRO(PCH_SET_COMPILE_FLAGS)
MACRO(GET_PDB_FILENAME _out_filename _target)
# determine output directory based on target type
GET_TARGET_PROPERTY(_targetType ${_target} TYPE)
IF(${_targetType} STREQUAL EXECUTABLE)
SET(_targetOutput ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
ELSEIF(${_targetType} STREQUAL STATIC_LIBRARY)
SET(_targetOutput ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
ELSE(${_targetType} STREQUAL EXECUTABLE)
SET(_targetOutput ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
ENDIF(${_targetType} STREQUAL EXECUTABLE)
# determine target postfix
STRING(TOUPPER "${CMAKE_BUILD_TYPE}_POSTFIX" _postfix_var_name)
GET_TARGET_PROPERTY(_targetPostfix ${_target} ${_postfix_var_name})
IF(${_targetPostfix} MATCHES NOTFOUND)
SET(_targetPostfix "")
ENDIF(${_targetPostfix} MATCHES NOTFOUND)
SET(${_out_filename} "${_targetOutput}/${_target}${_targetPostfix}.pdb")
ENDMACRO(GET_PDB_FILENAME)
MACRO(PCH_SET_COMPILE_COMMAND _inputcpp _compile_FLAGS)
IF(CMAKE_CXX_COMPILER_ARG1)
# remove leading space in compiler argument
STRING(REGEX REPLACE "^ +" "" pchsupport_compiler_cxx_arg1 ${CMAKE_CXX_COMPILER_ARG1})
ELSE(CMAKE_CXX_COMPILER_ARG1)
SET(pchsupport_compiler_cxx_arg1 "")
ENDIF(CMAKE_CXX_COMPILER_ARG1)
IF(MSVC)
GET_PDB_FILENAME(PDB_FILE ${_PCH_current_target})
SET(PCH_COMMAND ${CMAKE_CXX_COMPILER} ${pchsupport_compiler_cxx_arg1} ${_compile_FLAGS} /Yc /Fp"${PCH_OUTPUT}" ${_inputcpp} /Fd"${PDB_FILE}" /c /Fo"${PCH_OUTPUT}.obj")
ELSE(MSVC)
SET(HEADER_FORMAT "c++-header")
SET(_FLAGS "")
IF(APPLE)
SET(HEADER_FORMAT "objective-${HEADER_FORMAT}")
SET(_FLAGS -fobjc-abi-version=2 -fobjc-legacy-dispatch)
ENDIF(APPLE)
SET(PCH_COMMAND ${CMAKE_CXX_COMPILER} ${pchsupport_compiler_cxx_arg1} ${_compile_FLAGS} ${_FLAGS} -x ${HEADER_FORMAT} -o ${PCH_OUTPUT} -c ${PCH_INPUT})
ENDIF(MSVC)
ENDMACRO(PCH_SET_COMPILE_COMMAND)
MACRO(PCH_SET_PRECOMPILED_HEADER_OUTPUT _targetName _input _arch _language)
SET(_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/${_targetName}_pch")
IF(MSVC)
FILE(MAKE_DIRECTORY ${_OUTPUT_DIR})
GET_FILENAME_COMPONENT(_name ${_input} NAME_WE)
SET(PCH_INPUT ${_input})
SET(PCH_OUTPUT "${_OUTPUT_DIR}/${_name}.pch")
ELSE(MSVC)
IF(NOT "${_arch}" STREQUAL "")
SET(_OUTPUT_DIR "${_OUTPUT_DIR}_${_arch}")
ENDIF(NOT "${_arch}" STREQUAL "")
IF(NOT "${_language}" STREQUAL "")
SET(_OUTPUT_DIR "${_OUTPUT_DIR}_${_language}")
ENDIF(NOT "${_language}" STREQUAL "")
GET_FILENAME_COMPONENT(_name ${_input} NAME)
# Copy .h to output dir
SET(PCH_INPUT "${_OUTPUT_DIR}/${_name}")
ADD_CUSTOM_COMMAND(OUTPUT ${PCH_INPUT}
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${_input} ${PCH_INPUT}
DEPENDS ${_input}
COMMENT "[${_targetName}] Update precompiled header - done"
)
IF(CLANG)
SET(PCH_EXT "pth")
ELSE(CLANG)
SET(PCH_EXT "gch")
ENDIF(CLANG)
# For GCC and Clang, PCH needs to be in the same directory as .h
SET(PCH_OUTPUT "${_OUTPUT_DIR}/${_name}.${PCH_EXT}")
ENDIF(MSVC)
ENDMACRO(PCH_SET_PRECOMPILED_HEADER_OUTPUT)
# Add common flags
MACRO(ADD_PRECOMPILED_HEADER_TO_TARGET _targetName)
GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS)
IF(${oldProps} MATCHES NOTFOUND)
SET(oldProps "")
ENDIF(${oldProps} MATCHES NOTFOUND)
IF(MSVC)
SET(_target_cflags "${oldProps} /Yu\"${PCH_INPUT}\" /FI\"${PCH_INPUT}\" /Fp\"${PCH_OUTPUT}\"")
ELSE(MSVC)
# for use with distcc and gcc >4.0.1 if preprocessed files are accessible
# on all remote machines set
# PCH_ADDITIONAL_COMPILER_FLAGS to -fpch-preprocess
SET(PCH_ADDITIONAL_COMPILER_FLAGS)
LIST(LENGTH PCH_ARCHS PCH_ARCHS_COUNT)
# If no arch is specified, create common flags
IF(PCH_ARCHS_COUNT LESS 2)
SET(PCH_ADDITIONAL_COMPILER_FLAGS "-include ${PCH_INPUT} ${PCH_ADDITIONAL_COMPILER_FLAGS}")
ENDIF(PCH_ARCHS_COUNT LESS 2)
IF(APPLE)
SET(PCH_ADDITIONAL_COMPILER_FLAGS "-fobjc-abi-version=2 -fobjc-legacy-dispatch -x objective-c++ ${PCH_ADDITIONAL_COMPILER_FLAGS}")
ENDIF(APPLE)
IF(WITH_PCH_DEBUG)
SET(PCH_ADDITIONAL_COMPILER_FLAGS "-H ${PCH_ADDITIONAL_COMPILER_FLAGS}")
ENDIF(WITH_PCH_DEBUG)
SET(_target_cflags "${oldProps} ${PCH_ADDITIONAL_COMPILER_FLAGS} -Winvalid-pch")
ENDIF(MSVC)
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES COMPILE_FLAGS ${_target_cflags})
ENDMACRO(ADD_PRECOMPILED_HEADER_TO_TARGET)
# Add specific flags for an arch
MACRO(ADD_PRECOMPILED_HEADER_TO_TARGET_ARCH _targetName _arch)
LIST(LENGTH PCH_ARCHS PCH_ARCHS_COUNT)
IF(PCH_ARCHS_COUNT GREATER 1)
GET_TARGET_PROPERTY(_FLAGS ${_targetName} COMPILE_FLAGS)
IF(${_FLAGS} MATCHES NOTFOUND)
SET(_FLAGS "")
ENDIF(${_FLAGS} MATCHES NOTFOUND)
SET(_FLAGS "${_FLAGS} -Xarch_${_arch} -include${PCH_INPUT}")
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES COMPILE_FLAGS ${_FLAGS})
ENDIF(PCH_ARCHS_COUNT GREATER 1)
ENDMACRO(ADD_PRECOMPILED_HEADER_TO_TARGET_ARCH)
MACRO(PCH_CREATE_TARGET _targetName _targetNamePCH)
ADD_CUSTOM_COMMAND(OUTPUT ${PCH_OUTPUT} COMMAND ${PCH_COMMAND} COMMENT "Generating ${_targetNamePCH}" DEPENDS ${PCH_INPUT})
ADD_CUSTOM_TARGET(${_targetNamePCH} DEPENDS ${PCH_INPUT} ${PCH_OUTPUT})
ADD_DEPENDENCIES(${_targetName} ${_targetNamePCH})
ENDMACRO(PCH_CREATE_TARGET _targetName _inputh _inputcpp)
MACRO(ADD_PRECOMPILED_HEADER _targetName _inputh _inputcpp)
SET(_PCH_current_target ${_targetName})
IF(NOT CMAKE_BUILD_TYPE)
MESSAGE(FATAL_ERROR
"This is the ADD_PRECOMPILED_HEADER macro. "
"You must set CMAKE_BUILD_TYPE!"
)
ENDIF(NOT CMAKE_BUILD_TYPE)
PCH_SET_COMPILE_FLAGS(${_targetName})
IF(PCH_ARCHS)
SET(PCH_OUTPUTS)
FOREACH(_ARCH ${PCH_ARCHS})
STRING(TOUPPER "${_ARCH}" _UPPER_ARCH)
PCH_SET_PRECOMPILED_HEADER_OUTPUT(${_targetName} ${_inputh} ${_ARCH} "")
LIST(APPEND PCH_OUTPUTS ${PCH_OUTPUT})
PCH_SET_COMPILE_COMMAND(${_inputcpp} "${PCH_ARCH_${_UPPER_ARCH}_FLAGS};${PCH_FLAGS}")
PCH_CREATE_TARGET(${_targetName} ${_targetName}_pch_${_ARCH})
ADD_PRECOMPILED_HEADER_TO_TARGET_ARCH(${_targetName} ${_ARCH})
ENDFOREACH(_ARCH)
ELSE(PCH_ARCHS)
PCH_SET_PRECOMPILED_HEADER_OUTPUT(${_targetName} ${_inputh} "" "")
LIST(APPEND PCH_OUTPUTS ${PCH_OUTPUT})
PCH_SET_COMPILE_COMMAND(${_inputcpp} "${PCH_FLAGS}")
PCH_CREATE_TARGET(${_targetName} ${_targetName}_pch)
ENDIF(PCH_ARCHS)
ADD_PRECOMPILED_HEADER_TO_TARGET(${_targetName})
SET_DIRECTORY_PROPERTIES(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES "${PCH_OUTPUTS}")
ENDMACRO(ADD_PRECOMPILED_HEADER)
# Macro to move PCH creation file to the front of files list
# or remove .cpp from library/executable to avoid warning
MACRO(FIX_PRECOMPILED_HEADER _files _pch)
# Remove .cpp creating PCH from the list
LIST(REMOVE_ITEM ${_files} ${_pch})
IF(MSVC)
# Prepend .cpp creating PCH to the list
LIST(INSERT ${_files} 0 ${_pch})
ENDIF(MSVC)
ENDMACRO(FIX_PRECOMPILED_HEADER)
MACRO(ADD_NATIVE_PRECOMPILED_HEADER _targetName _inputh _inputcpp)
IF(NOT PCHSupport_FOUND)
MESSAGE(STATUS "PCH disabled because compiler doesn't support them")
RETURN()
ENDIF(NOT PCHSupport_FOUND)
# 0 => creating a new target for PCH, works for all makefiles
# 1 => setting PCH for VC++ project, works for VC++ projects
# 2 => setting PCH for XCode project, works for XCode projects
IF(CMAKE_GENERATOR MATCHES "Visual Studio")
SET(PCH_METHOD 1)
ELSEIF(CMAKE_GENERATOR MATCHES "NMake Makefiles" AND MFC_FOUND AND CMAKE_MFC_FLAG)
# To fix a bug with MFC
# Don't forget to use FIX_PRECOMPILED_HEADER before creating the target
# SET(PCH_METHOD 1)
ELSEIF(CMAKE_GENERATOR MATCHES "Xcode")
SET(PCH_METHOD 2)
ELSE(CMAKE_GENERATOR MATCHES "Visual Studio")
SET(PCH_METHOD 0)
ENDIF(CMAKE_GENERATOR MATCHES "Visual Studio")
IF(PCH_METHOD EQUAL 1)
# Auto include the precompile (useful for moc processing, since the use of
# precompiled is specified at the target level
# and I don't want to specifiy /F- for each moc/res/ui generated files (using Qt)
GET_TARGET_PROPERTY(oldProps ${_targetName} COMPILE_FLAGS)
IF(${oldProps} MATCHES NOTFOUND)
SET(oldProps "")
ENDIF(${oldProps} MATCHES NOTFOUND)
SET(newProperties "${oldProps} /Yu\"${_inputh}\" /FI\"${_inputh}\"")
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES COMPILE_FLAGS "${newProperties}")
#also inlude ${oldProps} to have the same compile options
SET_SOURCE_FILES_PROPERTIES(${_inputcpp} PROPERTIES COMPILE_FLAGS "${oldProps} /Yc\"${_inputh}\"")
ELSEIF(PCH_METHOD EQUAL 2)
# For Xcode, cmake needs my patch to process
# GCC_PREFIX_HEADER and GCC_PRECOMPILE_PREFIX_HEADER as target properties
# When buiding out of the tree, precompiled may not be located
# Use full path instead.
GET_FILENAME_COMPONENT(fullPath ${_inputh} ABSOLUTE)
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PREFIX_HEADER "${fullPath}")
SET_TARGET_PROPERTIES(${_targetName} PROPERTIES XCODE_ATTRIBUTE_GCC_PRECOMPILE_PREFIX_HEADER "YES")
ELSE(PCH_METHOD EQUAL 1)
#Fallback to the "old" precompiled suppport
ADD_PRECOMPILED_HEADER(${_targetName} ${_inputh} ${_inputcpp})
ENDIF(PCH_METHOD EQUAL 1)
IF(TARGET ${_targetName}_static)
ADD_NATIVE_PRECOMPILED_HEADER(${_targetName}_static ${_inputh} ${_inputcpp})
ENDIF(TARGET ${_targetName}_static)
ENDMACRO(ADD_NATIVE_PRECOMPILED_HEADER)
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