http://bugs.winehq.org/show_bug.cgi?id=29168
--- Comment #185 from h.v.bruinehsen@fu-berlin.de 2012-03-13 12:52:43 CDT --- The git-checkout from today compiled fine with gcc-4.6.2 and Carstens patch. I'm using Gentoo and only patched the ebuild - there are two Gentoo-specific patches applied also: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/app-emulation/wine/f... and http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/app-emulation/wine/f...
If it's not one of them, it's maybe the Gentoo-spec file for gcc.
Otherwise my point wasn't the ability to compile wine with newer ggc-versions, but the fix for the slowdown-problem without touching wine...