http://bugs.winehq.org/show_bug.cgi?id=32061
--- Comment #7 from Stefan Dösinger stefan@codeweavers.com 2013-06-22 13:07:23 CDT --- There's a slight version confusion here, and I'm not sure what the answer is. 1.13.3 is a xorg-server version, not libX11. I'm using libX11 1.5.0, which was shipped in February and is in Gentoo stable. I haven't yet tried to upgrade.
Also make sure your 32 bit version matches the 64 bit one.