Roderick: Yeah the -O0 bug was reported on #winehackers yesterday and will likely be fixed soon.
Ah, ok :) I know you already test nearly everythink, but what about adding another test -O{0,1,2,s,...} a] before official release or b] evening wine git update
Compiling using -O2 (which is what you should use by default anyway
unless you have very good reasons not to) should work fine.
I quickly thing of these reasons why -O0 * better backtraces for bug reports * faster compilation during bisection * recommended for Valgrind * my brain makes best optimalization, no need for buggy gcc :-D