As per http://forums.gentoo.org/viewtopic-p-6647403.html#6647403 Problematic file: /usr/lib64/librrd_th.la
+*rrdtool-1.4.5-r1 (07 Aug 2011) + + 07 Aug 2011; Samuli Suominen <ssuominen@gentoo.org> +rrdtool-1.4.5-r1.ebuild: + Disable building librrd.a and librrd_th.a and delete matching libtool files + wrt #362895 by Cesko Voeten. Open a bug if you need USE="static-libs".