http://bugs.winehq.org/show_bug.cgi?id=22964
--- Comment #8 from Dan Kegel dank@kegel.com 2010-06-05 04:57:06 --- Did you try the tips in comment #1 ?
Also, try installing an older gcc and building wine with that (e.g. by putting it on PATH before /usr/bin), just to see if it's the compiler.