--- hdf5-1.6.7.ebuild	2008-08-17 17:25:52.000000000 +0200
+++ hdf5-1.8.1.ebuild	2008-09-28 10:56:20.000000000 +0200
@@ -64,10 +64,10 @@
 	unpack ${A}
 	cd "${S}"
 
-	epatch "${FILESDIR}"/${PN}-1.6.6-gcc4.3.patch
+	epatch "${FILESDIR}"/${P}-gcc4.3.patch
 	if use mpi; then
 	    # this is required for mpich2, and should be safe otherwise
-	    epatch "${FILESDIR}/${PN}-mpich2.patch"
+	    epatch "${FILESDIR}/${P}-mpich2.patch"
 	fi
 
 	# fix test script stuff