--- /usr/portage/media-libs/libpng/libpng-1.2.34.ebuild	2008-12-21 22:34:48.000000000 +0100
+++ /usr/local/portage/media-libs/libpng/libpng-1.2.34.ebuild	2008-12-22 08:55:37.000000000 +0100
@@ -2,6 +2,8 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/media-libs/libpng/libpng-1.2.34.ebuild,v 1.1 2008/12/21 21:34:48 vapier Exp $
 
+EAPI=1
+
 inherit libtool multilib eutils
 
 MY_PV=${PV/_}
@@ -12,7 +14,7 @@
 LICENSE="as-is"
 SLOT="1.2"
 KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~sparc-fbsd ~x86 ~x86-fbsd"
-IUSE=""
+IUSE="-apng"
 
 RDEPEND="sys-libs/zlib"
 DEPEND="${RDEPEND}
@@ -24,6 +26,7 @@
 	unpack ${A}
 	cd "${S}"
 	epatch "${FILESDIR}"/${PN}-1.2.24-pngconf-setjmp.patch
+	use apng && epatch "${FILESDIR}"/${PN}-1.2.31-apng-unofficial.patch
 
 	# So we get sane .so versioning on FreeBSD
 	elibtoolize