Created attachment 349320 [details] Example tex file There's a bug in xeCJK Chinese typesetting. Upstream xeCJK fixed the bug on 2012.12.23, but not bump version number, and texlive-xetex in portage pulls in the old(and buggy) version of xeCJK. Please update xeCJK and its dependancies.
Created attachment 349322 [details] build log
not sure if its worth it for now: texlive 2013 is on its way upstream and should fix this
(In reply to Alexis Ballier from comment #2) > not sure if its worth it for now: texlive 2013 is on its way upstream and > should fix this Here's temporary fix, try to add the following line to your preamble: `\xeCJKsetup{CJKglue=\hspace{0pt plus .08 \baselineskip }}` For more detailed info, see: http://tex.stackexchange.com/questions/84010/change-to-xecjk-under-texlive-2012-since-2011 The xeCJK maintainer said that it was his fault. Hope that helps. :)
xecjk will be updated with texlive 2013