--- pngnq-1.0.ebuild.orig	2010-01-14 18:15:03.000000000 +0100
+++ pngnq-1.0.ebuild	2010-01-14 18:04:49.000000000 +0100
@@ -16,7 +16,14 @@
 KEYWORDS="~amd64 ~x86"
 IUSE=""
 
-DEPEND="media-libs/libpng"
+DEPEND="media-libs/libpng
+	dev-util/pkgconfig"
+RDEPEND="${DEPEND}"
+
+src_prepare() {
+	epatch "${FILESDIR}/${P}-as-needed.patch"
+	eautoreconf
+}
 
 src_compile() {
 	emake CC="$(tc-getCC)" || die "emake failed"