http://bugs.winehq.org/show_bug.cgi?id=21015
--- Comment #11 from Vitaliy Margolen vitaliy@kievinfo.com 2010-03-21 13:02:37 --- (In reply to comment #7)
Do I need to download a fresh copy from Git or is there some kind of "clean" command I can issue?
No, try "git clean -x -d -f".