http://bugs.winehq.org/show_bug.cgi?id=17366
--- Comment #1 from André H. nerv@dawncrow.de 2009-02-12 14:09:23 --- i think i found the problematic patch:
winegcc: Pass the -m32/-m64 options to winebuild too.
http://source.winehq.org/git/wine.git/?a=commit;h=64e43b619286dbc3a347dad5d6...
this forces us to use one of these parameters in winegcc under 64-bit. so i will include it in winemaker also.