@@ -11,10 +11,11 @@
 	     OF_HAVE_FILES		\
 	     OF_HAVE_SOCKETS		\
 	     OF_HAVE_THREADS		\
 	     OF_NO_RETURN		\
 	     OF_NO_RETURN_FUNC		\
+	     OF_NULLABLE_PROPERTY	\
 	     OF_SENTINEL		\
 	     OF_REQUIRES_SUPER		\
 	     OF_RETURNS_RETAINED	\
 	     OF_RETURNS_NOT_RETAINED	\
 	     OF_RETURNS_INNER_POINTER	\