Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 79 insertions, 0 deletions

diff --git a/Source/cmake/WebKitHelpers.cmake b/Source/cmake/WebKitHelpers.cmake
new file mode 100644
index 0000000..58c506b
--- /dev/null
+++ b/Source/cmake/WebKitHelpers.cmake
@@ -0,0 +1,79 @@
+# 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)
+  IF ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+    GET_TARGET_PROPERTY(OLD_COMPILE_FLAGS ${_target} COMPILE_FLAGS)
+    IF (${OLD_COMPILE_FLAGS} STREQUAL "OLD_COMPILE_FLAGS-NOTFOUND")
+        SET(OLD_COMPILE_FLAGS "")
+    ENDIF ()
+
+    # Disable some optimizations on buggy compiler versions
+    # GCC 4.5.1 does not implement -ftree-sra correctly
+    EXEC_PROGRAM(${CMAKE_CXX_COMPILER} ARGS -dumpversion OUTPUT_VARIABLE COMPILER_VERSION)
+    IF (${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 "-fPIC -fvisibility=hidden ${OLD_COMPILE_FLAGS}")
+    ENDIF ()
+
+    SET(OLD_COMPILE_FLAGS "-fno-exceptions -fno-strict-aliasing ${OLD_COMPILE_FLAGS}")
+
+    # Enable warnings by default
+    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 ${OLD_COMPILE_FLAGS}")
+
+    SET_TARGET_PROPERTIES (${_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_DIR}
+# and prepends this to every member of dependencies list
+MACRO(ADD_SOURCE_DERIVED_DEPENDENCIES _source _deps)
+  SET(_tmp "")
+  FOREACH (f ${_deps})
+    LIST(APPEND _tmp "${DERIVED_SOURCES_DIR}/${f}")
+  ENDFOREACH ()
+
+  ADD_SOURCE_DEPENDENCIES(${_source} ${_tmp})
+  UNSET(_tmp)
+ENDMACRO()
+