sys-apps/dtc-1.3.0: backport from Gentoo's tree

BUG=none
TEST=emerge dtc && ./build_packages && ./build_image

Change-Id: Ib3cca7647a8f3975730362050b3b8897c10d91a8
Reviewed-on: http://gerrit.chromium.org/gerrit/2718
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Diego Elio Pettenò <flameeyes@chromium.org>

sdk_container/src/third_party/portage-stable/sys-apps/dtc/dtc-1.3.0.ebuild

@@ -0,0 +1,46 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-apps/dtc/dtc-1.3.0.ebuild,v 1.1 2011/06/15 21:19:11 flameeyes Exp $
+
+EAPI=4
+inherit toolchain-funcs
+
+MY_P="${PN}-v${PV}"
+
+DESCRIPTION="Open Firmware device-trees compiler"
+HOMEPAGE="http://www.t2-project.org/packages/dtc.html"
+SRC_URI="http://www.jdl.com/software/${MY_P}.tgz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~ppc64 ~x86"
+IUSE=""
+
+RDEPEND=""
+DEPEND="sys-devel/flex
+	sys-devel/bison"
+
+S=${WORKDIR}/${MY_P}
+
+src_prepare() {
+	sed -i -e "s:CFLAGS =:CFLAGS +=:" \
+		   -e "s:CPPFLAGS =:CPPFLAGS +=:" \
+		   -e "s:-Werror::" \
+		   -e "s:-g -Os::" \
+		Makefile || die
+}
+
+src_compile() {
+	tc-export AR CC
+	emake PREFIX="/usr" LIBDIR="/usr/$(get_libdir)"
+}
+
+src_test() {
+	emake check
+}
+
+src_install() {
+	emake DESTDIR="${D}" PREFIX="/usr" LIBDIR="/usr/$(get_libdir)" \
+		 install
+	dodoc Documentation/manual.txt
+}