--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <herd>sci</herd>
+ <maintainer>
+ <email>mjo@gentoo.org</email>
+ <name>Michael Orlitzky</name>
+ </maintainer>
+ <use>
+ <flag name='executable'>Build the 'rw' program.</flag>
+ </use>
+</pkgmetadata>
--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+EAPI=5
+
+DESCRIPTION="Compute rank-width decompositions of graphs"
+AUTHORPAGE="http://pholia.tdi.informatik.uni-frankfurt.de/~philipp/"
+HOMEPAGE="${AUTHORPAGE}software/${PN}.shtml"
+SRC_URI="${AUTHORPAGE}/software/${P}.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="executable"
+
+DEPEND="executable? ( >=dev-libs/igraph-0.6 )"
+RDEPEND="${DEPEND}"
+
+src_configure(){
+ econf $(use_enable executable)
+}