--- /usr/portage/media-libs/libtheora/libtheora-1.1.1.ebuild	2013-02-22 11:01:19.000000000 -0500
+++ /usr/portage/local/miscellaneous/media-libs/libtheora/libtheora-1.1.1.ebuild	2013-04-10 17:59:42.190741592 -0400
@@ -28,6 +28,7 @@
 
 src_prepare() {
 	epatch "${FILESDIR}"/${PN}-1.0_beta2-flags.patch
+        sed -i 's/png_\(sizeof\)/\1/g' examples/png2theora.c
 	AT_M4DIR="m4" eautoreconf
 }