newlib: import from portage/

We need this for the bare metal arm cross-compiler.

BUG=chromium-os:26016
TEST=`./setup_board --board=x86-alex` worked for installing newlib

Change-Id: I2c0771b8969c297f25c9e4fcea2e0b5176d871c3
Reviewed-on: https://gerrit.chromium.org/gerrit/16965
Reviewed-by: Matt Tennant <mtennant@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>

sdk_container/src/third_party/portage-stable/sys-libs/newlib/Manifest

@@ -0,0 +1 @@
+DIST newlib-1.18.0.tar.gz 13598301 RMD160 69d96fd323a23857072f30cb51899040099857cd SHA1 a47d3b8a508304143334b36bdb5b33786a61ce94 SHA256 d608f22b0b2e7725d2fca13cac19f34bc652d9773acadae778db9881746cb071

sdk_container/src/third_party/portage-stable/sys-libs/newlib/newlib-1.18.0.ebuild

@@ -0,0 +1,74 @@
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-libs/newlib/newlib-1.18.0.ebuild,v 1.2 2010/02/28 20:12:04 lu_zero Exp $
+
+inherit eutils flag-o-matic toolchain-funcs
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CTARGET} == ${CHOST} ]] ; then
+	if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
+		export CTARGET=${CATEGORY/cross-}
+	fi
+fi
+
+# Handle the case where we want newlib on glibc ...
+if [[ ${CTARGET} == ${CHOST} ]] && [[ ${CHOST} != *-newlib ]] ; then
+	export CTARGET=${CHOST%%-*}-pc-linux-newlib
+fi
+
+DESCRIPTION="Newlib is a C library intended for use on embedded systems"
+HOMEPAGE="http://sourceware.org/newlib/"
+SRC_URI="ftp://sources.redhat.com/pub/newlib/${P}.tar.gz"
+
+LICENSE="NEWLIB LIBGLOSS GPL-2"
+[[ ${CTARGET} != ${CHOST} ]] \
+	&& SLOT="${CTARGET}" \
+	|| SLOT="0"
+KEYWORDS="-* arm hppa m68k mips ppc ppc64 sh sparc x86"
+IUSE="nls threads unicode crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+DEPEND=""
+RDEPEND=""
+
+NEWLIBBUILD="${WORKDIR}/build"
+
+src_unpack() {
+	unpack ${A}
+	mkdir -p "${NEWLIBBUILD}"
+}
+
+src_compile() {
+	# we should fix this ...
+	unset LDFLAGS
+	CHOST=${CTARGET} strip-unsupported-flags
+
+	local myconf=""
+	# hardwired to avoid breakages
+	[[ $(tc-is-softfloat) != "no" ]] \
+		&& myconf="--disable-newlib-hw-fp" \
+		|| myconf="--enable-newlib-hw-fp"
+	[[ ${CTARGET} == "spu" ]] \
+		&& myconf="${myconf} --disable-newlib-multithread" \
+		|| myconf="${myconf} $(use_enable threads newlib-multithread)"
+
+	cd "${NEWLIBBUILD}"
+
+	ECONF_SOURCE=${S} \
+	econf \
+		$(use_enable unicode newlib-mb) \
+		$(use_enable nls) \
+		${myconf} \
+		|| die "econf failed"
+	emake || die "emake failed"
+}
+
+src_install() {
+	cd "${NEWLIBBUILD}"
+	emake -j1 DESTDIR="${D}" install
+#	env -uRESTRICT CHOST=${CTARGET} prepallstrip
+	# minor hack to keep things clean
+	rm -fR "${D}"/usr/share/info
+	rm -fR "${D}"/usr/info
+}