http://bugs.winehq.org/show_bug.cgi?id=6207
------- Additional Comments From vitaliy@kievinfo.com 2006-18-09 12:35 ------- Please use patches from Bug 6205.
Also PLEASE inspect your build environment. You have something misconfigured and your backtrace looks wrong. You have to fix that. Refer to http://wiki.winehq.org/Gentoo for list of CFLAGS that are not supported.
Also please try with binary package. And with Wine 0.9.20.