--- wcstools-3.7.7.ebuild.orig	2009-09-09 16:25:31.604880954 +0200
+++ wcstools-3.7.7.ebuild	2009-09-09 16:25:43.988623578 +0200
@@ -23,7 +23,7 @@
 		-e 's/crlf/wcscrlf/' \
 		-e 's/remap/wcsremap/' \
 		wcstools Makefile.am || die
-	sed -i -e 's/3.7.x/${PV}/' "${S}"/configure.ac || die "sed failed"
+	sed -i -e "s/3.7.x/${PV}/" "${S}"/configure.ac || die "sed failed"
 	eautoreconf
 }