A new version of libtheora has been released that is one increment above that currently in Portage. Reproducible: Always
+*libtheora-1.1_alpha2 (09 Jun 2009) + + 09 Jun 2009; Samuli Suominen <ssuominen@gentoo.org> + +libtheora-1.1_alpha2.ebuild: + Version bump wrt #273374, thanks to Christopher Culver for reporting.