--- a/dtach-0.8.ebuild	2011-01-04 19:01:03.000000000 +0100
+++ b/dtach-0.8.ebuild	2011-05-12 19:55:17.000000000 +0200
@@ -1,6 +1,10 @@
 # Copyright 1999-2011 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/app-misc/dtach/dtach-0.8.ebuild,v 1.5 2011/01/04 17:55:39 jlec Exp $
+# $Header: $
+
+EAPI="2"
+
+inherit eutils
 
 DESCRIPTION="A program that emulates the detach feature of screen"
 HOMEPAGE="http://dtach.sourceforge.net/"
@@ -9,7 +13,11 @@
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="amd64 ppc x86"
-IUSE=""
+IUSE="scrollback"
+
+src_prepare() {
+	use scrollback && epatch "${FILESDIR}/scrollback-buffer-${PV}.patch"
+}
 
 src_install() {
 	dobin dtach || die "dobin failed"