--- /usr/portage/dev-libs/apr/apr-1.4.4.ebuild	2011-05-14 21:31:08.000000000 +0200
+++ apr-1.4.4.ebuild	2011-10-05 20:59:35.000000000 +0200
@@ -22,8 +22,8 @@
 
 src_prepare() {
 	# Ensure that system libtool is used.
-	sed -e 's:${installbuilddir}/libtool:/usr/bin/libtool:' -i apr-config.in || die "sed failed"
-	sed -e 's:@LIBTOOL@:$(SHELL) /usr/bin/libtool:' -i build/apr_rules.mk.in || die "sed failed"
+	sed -e "s:${installbuilddir}/libtool:${ROOT}usr/bin/libtool:" -i apr-config.in || die "sed failed"
+	sed -e "s:@LIBTOOL@:${ROOT}usr/bin/libtool:" -i build/apr_rules.mk.in || die "sed failed"
 
 	AT_M4DIR="build" eautoreconf
 	elibtoolize