#cmakedefine01 ENABLE_LEGACY_WEBKIT_BLOB_BUILDER
#cmakedefine01 ENABLE_MATHML
#cmakedefine01 ENABLE_METER_TAG
+#cmakedefine01 ENABLE_MEDIA_CAPTURE
#cmakedefine01 ENABLE_MICRODATA
#cmakedefine01 ENABLE_MUTATION_OBSERVERS
#cmakedefine01 ENABLE_NETSCAPE_PLUGIN_API