--- media-gfx/graphviz/graphviz-2.16.1-r4.ebuild
+++ media-gfx/graphviz/graphviz-2.18.ebuild
@@ -138,7 +138,11 @@
 
 	# Update this file from our local libtool which is much newer than the
 	# bundled one. This allows MAKEOPTS=-j2 to work on FreeBSD.
-	cp /usr/share/libtool/install-sh config
+	if has_version ">=sys-devel/libtool-2" ; then
+		cp /usr/share/libtool/config/install-sh config
+	else
+		cp /usr/share/libtool/install-sh config
+	fi
 
 	# no nls, no gettext, no iconv macro, so disable it
 	use nls || { sed -i -e '/^AM_ICONV/d' configure.ac || die; }