diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/patch/files/gnulib_strnlen.c b/sdk_container/src/third_party/portage-stable/sys-devel/patch/files/gnulib_strnlen.c
new file mode 100644
index 0000000000..112df49ab4
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/patch/files/gnulib_strnlen.c
@@ -0,0 +1,31 @@
+/* Find the length of STRING, but scan at most MAXLEN characters.
+   Copyright (C) 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
+   Written by Simon Josefsson.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+#include <string.h>
+
+/* Find the length of STRING, but scan at most MAXLEN characters.
+   If no '\0' terminator is found in that many characters, return MAXLEN.  */
+
+size_t
+strnlen (const char *string, size_t maxlen)
+{
+  const char *end = memchr (string, '\0', maxlen);
+  return end ? (size_t) (end - string) : maxlen;
+}
diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/patch/patch-2.6.1.ebuild b/sdk_container/src/third_party/portage-stable/sys-devel/patch/patch-2.6.1.ebuild
new file mode 100644
index 0000000000..eecb902708
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/patch/patch-2.6.1.ebuild
@@ -0,0 +1,40 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/patch/patch-2.6.1.ebuild,v 1.7 2011/12/03 10:47:41 maekke Exp $
+
+inherit flag-o-matic
+
+DESCRIPTION="Utility to apply diffs to files"
+HOMEPAGE="http://www.gnu.org/software/patch/patch.html"
+SRC_URI="mirror://gnu/patch/${P}.tar.bz2"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc x86 ~sparc-fbsd ~x86-fbsd"
+IUSE="static test"
+
+RDEPEND=""
+DEPEND="${RDEPEND}
+	test? ( sys-apps/ed )"
+
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+	# this file is missing from the tarball bug #300845
+	cp "${FILESDIR}"/gnulib_strnlen.c gl/lib/strnlen.c || die
+}
+
+src_compile() {
+	use static && append-ldflags -static
+
+	local myconf=""
+	[[ ${USERLAND} != "GNU" ]] && myconf="--program-prefix=g"
+	econf ${myconf} || die
+
+	emake || die "emake failed"
+}
+
+src_install() {
+	emake install DESTDIR="${D}" || die
+	dodoc AUTHORS ChangeLog NEWS README
+}