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INCLUDE(CMakeParseArguments)
# Sets extra compile flags for a target, depending on the compiler being used.
# Currently, only GCC is supported.
MACRO(WEBKIT_SET_EXTRA_COMPILER_FLAGS _target)
SET(options IGNORECXX_WARNINGS)
CMAKE_PARSE_ARGUMENTS("OPTION" "IGNORECXX_WARNINGS" "" "" ${ARGN})
IF (CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
GET_TARGET_PROPERTY(OLD_COMPILE_FLAGS ${_target} COMPILE_FLAGS)
IF (${OLD_COMPILE_FLAGS} STREQUAL "OLD_COMPILE_FLAGS-NOTFOUND")
SET(OLD_COMPILE_FLAGS "")
ENDIF ()
INCLUDE(TestCXXAcceptsFlag)
CHECK_CXX_ACCEPTS_FLAG("-dumpversion" CMAKE_CXX_ACCEPTS_DUMPVERSION)
IF (CMAKE_CXX_ACCEPTS_DUMPVERSION)
EXEC_PROGRAM(${CMAKE_CXX_COMPILER} ARGS -dumpversion OUTPUT_VARIABLE COMPILER_VERSION)
ELSE ()
EXEC_PROGRAM("${CMAKE_CXX_COMPILER} -E -Wp,-dM - < /dev/null | grep '#define __VERSION__' | grep -E -o '[0-9]+\\.[0-9]+\\.?[0-9]+?'" OUTPUT_VARIABLE COMPILER_VERSION)
ENDIF ()
# Disable some optimizations on buggy compiler versions
# GCC 4.5.1 does not implement -ftree-sra correctly
IF (${COMPILER_VERSION} STREQUAL "4.5.1")
SET(OLD_COMPILE_FLAGS "${OLD_COMPILE_FLAGS} -fno-tree-sra")
ENDIF ()
IF (NOT SHARED_CORE)
SET(OLD_COMPILE_FLAGS "-fvisibility=hidden ${OLD_COMPILE_FLAGS}")
ENDIF ()
GET_TARGET_PROPERTY(TARGET_TYPE ${_target} TYPE)
IF (${TARGET_TYPE} STREQUAL "STATIC_LIBRARY") # -fPIC is automatically added to shared libraries
SET(OLD_COMPILE_FLAGS "-fPIC ${OLD_COMPILE_FLAGS}")
ENDIF ()
SET(OLD_COMPILE_FLAGS "-fno-exceptions -fno-strict-aliasing ${OLD_COMPILE_FLAGS}")
# Enable warnings by default
IF (NOT ${OPTION_IGNORECXX_WARNINGS})
SET(OLD_COMPILE_FLAGS "-W -DANOTHER_BRICK_IN_THE -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat -Wformat-security -Wmissing-format-attribute -Wno-format-y2k -Wno-parentheses -Wno-unused-parameter -Wpointer-arith -Wreturn-type -Wundef -Wwrite-strings ${OLD_COMPILE_FLAGS}")
ENDIF ()
# Disable C++0x compat warnings for GCC >= 4.6.0 until we build
# cleanly with that.
IF (NOT ${OPTION_IGNORECXX_WARNINGS} AND NOT ${COMPILER_VERSION} VERSION_LESS "4.6.0")
SET(OLD_COMPILE_FLAGS "${OLD_COMPILE_FLAGS} -Wno-c++0x-compat")
ENDIF ()
SET_TARGET_PROPERTIES (${_target} PROPERTIES
COMPILE_FLAGS "${OLD_COMPILE_FLAGS}")
UNSET(OLD_COMPILE_FLAGS)
ENDIF ()
ENDMACRO()
# Append the given flag to the target property.
# Builds on top of GET_TARGET_PROPERTY() and SET_TARGET_PROPERTIES()
MACRO (ADD_TARGET_PROPERTIES _target _property _flags)
GET_TARGET_PROPERTY (_tmp ${_target} ${_property})
IF (NOT _tmp)
SET (_tmp "")
ENDIF (NOT _tmp)
FOREACH (f ${_flags})
SET (_tmp "${_tmp} ${f}")
ENDFOREACH (f ${_flags})
SET_TARGET_PROPERTIES (${_target} PROPERTIES ${_property} ${_tmp})
UNSET (_tmp)
ENDMACRO (ADD_TARGET_PROPERTIES _target _property _flags)
# Append the given dependencies to the source file
MACRO(ADD_SOURCE_DEPENDENCIES _source _deps)
GET_SOURCE_FILE_PROPERTY(_tmp ${_source} OBJECT_DEPENDS)
IF (NOT _tmp)
SET (_tmp "")
ENDIF ()
FOREACH (f ${_deps})
LIST(APPEND _tmp "${f}")
ENDFOREACH ()
SET_SOURCE_FILES_PROPERTIES(${_source} PROPERTIES OBJECT_DEPENDS "${_tmp}")
UNSET(_tmp)
ENDMACRO()
# Append the given dependencies to the source file
# This one consider the given dependencies are in ${DERIVED_SOURCES_WEBCORE_DIR}
# and prepends this to every member of dependencies list
MACRO(ADD_SOURCE_WEBCORE_DERIVED_DEPENDENCIES _source _deps)
SET(_tmp "")
FOREACH (f ${_deps})
LIST(APPEND _tmp "${DERIVED_SOURCES_WEBCORE_DIR}/${f}")
ENDFOREACH ()
ADD_SOURCE_DEPENDENCIES(${_source} ${_tmp})
UNSET(_tmp)
ENDMACRO()
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