Issue #2054 has been updated by Run Paint Run Run. File 0001-Re-draft-Oniguruma-documentation.patch added Thanks, Yui. An updated patch is attached. I didn't mention ARG_ENCODING_NONE because it's not exposed by the API. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/2054 ---------------------------------------- http://redmine.ruby-lang.org