See attached build log.
(Please do not complain about the need for looking at the build log until you can provide an easy way to open bugs with the correct data picked out of a tinderbox log. Thanks.)
Created attachment 245073 [details]
+*xbatt-1.2.1-r1 (28 Aug 2010)
+ 28 Aug 2010; Kacper Kowalik <email@example.com>
+ +xbatt-1.2.1-r1.ebuild, +files/xbatt-1.2.1-implicits.patch:
+ Respect CC,CFLAGS,LDFLAGS wrt bug 334965. Thanks to Diego for the report.
+ Fix implicit functions declarations. Keyword on ~amd64.