SET(DEFAULT 0)

SET(DEPENDS 1)

SET(WEBKIT_FEATURES "")

SET(HTML_FEATURES "")

SET(SVG_FEATURES "")

MACRO(WEBKIT_SEPARATE_FEATURES _name _value)

        FOREACH(f ${ARGN})

                LIST(APPEND ${f}_FEATURES "${_name}=${_value}")

        ENDFOREACH()

ENDMACRO(WEBKIT_SEPARATE_FEATURES)

MACRO(WEBKIT_FEATURE_CHECK_DEPS _deps _deps_ok)

        SET(${_deps_ok} TRUE)

	LIST(LENGTH ${_deps} ${_deps_ok}_LIST_SIZE)

	IF (${${_deps_ok}_LIST_SIZE} GREATER 1)

		FOREACH(_dep ${${_deps}})

			IF (NOT ${_dep})

				SET(${_deps_ok} FALSE)

				BREAK()

			ENDIF ()

		ENDFOREACH ()

	ELSE ()

		IF (NOT ${_deps})

			SET(${_deps_ok} FALSE)

		ENDIF ()

	ENDIF ()

ENDMACRO()

MACRO(WEBKIT_FEATURE _feature _description _type _args)

	IF (${_type} EQUAL ${DEPENDS})

                WEBKIT_FEATURE_CHECK_DEPS(${_args} DEPS_OK_${_feature})

		OPTION(${_feature} "${_description}" DEPS_OK_${_feature})

	ELSEIF (${_type} EQUAL ${DEFAULT})

		OPTION(${_feature} "${_description}" ${_args})

	ENDIF ()

	LIST(APPEND WEBKIT_FEATURES ${_feature})

	IF (${_feature})

		SET(${_feature}_VALUE 1)

		WEBKIT_SEPARATE_FEATURES(${_feature} 1 ${ARGN})

		LIST(APPEND FEATURE_DEFINES ${_feature})

	ELSE ()

		SET(${_feature}_VALUE 0)

		WEBKIT_SEPARATE_FEATURES(${_feature} 0 ${ARGN})

	ENDIF ()

ENDMACRO()

MACRO(WEBKIT_PRINT_FEATURES)

	MESSAGE(STATUS "Enabled features:")

	SET(MAX_FEATURE_LENGTH 0)

	FOREACH (_feature ${WEBKIT_FEATURES})

		STRING(LENGTH ${_feature} FEATURE_LENGTH)

		IF (FEATURE_LENGTH GREATER MAX_FEATURE_LENGTH)

			SET(MAX_FEATURE_LENGTH ${FEATURE_LENGTH})

		ENDIF ()

	ENDFOREACH ()

	SET(ODD 0)

	FOREACH (_feature ${WEBKIT_FEATURES})

		STRING(LENGTH ${_feature} FEATURE_LENGTH)

		SET(SPACES "")

		IF (ODD)

			FOREACH (IGNORE RANGE ${FEATURE_LENGTH} ${MAX_FEATURE_LENGTH})

				SET(SPACES "${SPACES} ")

			ENDFOREACH ()

			SET(ODD 0)

		ELSE ()

			FOREACH (IGNORE RANGE ${FEATURE_LENGTH} ${MAX_FEATURE_LENGTH})

				SET(SPACES "${SPACES}.")

			ENDFOREACH ()

			SET(ODD 1)

		ENDIF ()

		IF (${_feature})

			MESSAGE(STATUS "  ${_feature} ${SPACES} ON")

		ELSE ()

			MESSAGE(STATUS "  ${_feature} ${SPACES} OFF")

		ENDIF ()

	ENDFOREACH ()

	UNSET(FEATURE_LENGTH)

	UNSET(MAX_FEATURE_LENGTH)

	UNSET(ODD)

ENDMACRO()