http://bugs.winehq.org/show_bug.cgi?id=15227
--- Comment #6 from Dylan Smith dylan.ah.smith@gmail.com 2008-09-11 13:15:31 --- Thanks for letting me know that the patch was in git. Somehow I didn't notice that until you mentioned it.
The compiler warning that you mentioned isn't something that I got. Maybe you are using a newer version of gcc or something, but it does seem to be a valid warning. That is probably why the patch wasn't accepted.