reinit the tree, so we can have metadata

13 files changed, 3792 insertions, 0 deletions

diff --git a/sys-libs/uclibc-ng/Manifest b/sys-libs/uclibc-ng/Manifest
new file mode 100644
index 000000000000..4fbef4642ebc
--- /dev/null
+++ b/sys-libs/uclibc-ng/Manifest
@@ -0,0 +1,20 @@
+AUX uclibc-compat-r1.patch 814 SHA256 e0c9ed0a806b8611721669fd7b60d16c734268d494e95bc5f3a25f75888fe3be SHA512 35eedbf33282285ae362a6e1b71f91a19ded8b18792f706b3d7e9c68221a61db238d84772a793cf086001272eda1b227043b90e8ef31c27796ffe837ccad11d0 WHIRLPOOL 18bded320b0779753042739e13b4b230ad27e012ac5f800d0636b00aa5e735ff62b76737536a1731d65f532a044deec4b82111b94469d78007317bba21026017
+AUX uclibc-ng-update-reboot_h.patch 1254 SHA256 39218a498e2bb52ae365e331ffdb26f5ea05782f320751aecbdfd13dc07b959a SHA512 605cabbbe19c3b2c442d7629c5adc340dd8899ca484b3d495d719a2fab68ef881973043c663211a61fba167ff0bdaa12f8534545da8e3049ab27ab1439477964 WHIRLPOOL 60421ff04770b43b26f0021a663f06f235598cfdea3729ce02cbc8651a17f5bcf46ba49f27e39bceba12b2db5cea068985c6b523f78f44ca898fc7377e4afcb8
+DIST uClibc-ng-1.0.19.tar.bz2 2748768 SHA256 139c495d8f71ec31da97e0330b056302ff40f0acba66988fcd737cfb4eb445ed SHA512 d385eca25c4a356b01b6d7acaef63daeeb172769d6306525fb95f62e818aca354cf04fae15af65bc346f19dcfdc601f87e52a8dc95f528d7392648d1b056fe63 WHIRLPOOL 1cc6b64df85df5f9e8c15c9cad3ed5641add20f402657a7d9c6283527ba7feac3c90ce293f2b15578c6d816c19018467336e50cd469a46482c2e4168f2addaf5
+DIST uClibc-ng-1.0.20.tar.bz2 2414313 SHA256 0d0ee9d4df82958f65088f446ffd7548d88deb1f1b949f9ec3e673decb910597 SHA512 c0d4fc442f087d9bf994a7b84fa12cfae96f2980061cbb39b1c2cf243692d44fcab79d4a686ac5a7889b9081682aa13d013da0ad99cb30ad2b7150bdb19de0de WHIRLPOOL 16035dd540629aa453e023b6ea96eab5e577579e7bb940ed3411107ffd12bc78148e7a14222184207ae40633d30871d9e583c3456a04cc28b96dfd40b287e713
+DIST uClibc-ng-1.0.22.tar.bz2 2435181 SHA256 430bebc26545022c5c3e9cebd4ee682db0053b94235e0be5df7eeab7ff19a9e0 SHA512 d29a14813f6b795fbd380a9593742f696cd32ec8fd22001ce092382ca0059357bc921b8eac7d0a6ae2a9cab724b0ddd15f9959ec789b4824a5db820cbd00b6e7 WHIRLPOOL 14336e9e159585472a9a01cb69acc0cb59d8df89769e532c4deec4c1a6a0056d8ff091904163ad9ab29c2c5107fe57f3241c8d4e898fe831f21b1a8e685aaec1
+DIST uClibc-ng-1.0.23.tar.bz2 2350186 SHA256 3eeb53a2aa5a32f455fb9d197f7b598f2ff46bbf35d72073f5e554e70c17c782 SHA512 eca892a0773cfbabaf5037347b1969706c040c903c93c612d2e0aca8d66b51d6d1cb7f3811a688898bc7e25ca235cc14b6bbd741c51dc135300a0e1408c6d1c3 WHIRLPOOL 1fb96469fb7860c05660fae7e58e9c60704cd76ad163a4c46e402e98ada35041a2069f6573498cf596a754044c08f30b4e3fd8fcba2d92c48ee7a7af9376af79
+DIST uClibc-ng-1.0.24.tar.bz2 2299126 SHA256 d7a3ddc0af8f750abd74e2f677664faafd491f40b62ae0676957e411ca203782 SHA512 4d25035f2355a2b5549fa89cdd7754fc20c6a5a1001a06a81ee47de18855db368e412eb10e38dcbe2e364d3108cefe50029379a3e222972ceced3b693f4ffcc4 WHIRLPOOL 05932258636f041ee12ca2aeec332098e4f61fff92f055a30d024fe7cc953014b93b0ba231cdca2bc0a600e526155734266a71f2f95135dfa305b984f2f2bcd5
+DIST uClibc-ng-1.0.25.tar.bz2 2234505 SHA256 e20d4a2c78cd76554747e58f35220301afb0fb600ed18f8c9096c98179120a8b SHA512 3bc5e3f0626a529a688e56649b34c48d0ddf733c09279c84fad0954880aa7c0ec3440664811196d11bbc3f05cbea99f3ba47efaad7f315a55ba3d8d587d3b313 WHIRLPOOL f422d05e1d9aa6ae0ecfc0b7808dd115614877d5a602effdc815123e61808b43558c9a9a530ef4ef918bbd5793bb77eb690660f563bc1f97120cc2a3c0b3650b
+DIST uClibc-ng-1.0.26.tar.bz2 2285709 SHA256 899e2ae37ba9266d20fc2bf290cece484455555b284140b6442c24a24cddb909 SHA512 48c37ab2000af13848ef007ce89f226bded5188f37839c11371bab48497670d30d39fda2a031c6aff95f429a4abadc431ddd77c0e023810a341e2c2d2645f71b WHIRLPOOL 32527dde77f30d1394271978e311fdc6ed69ef47b65d00f19efdf37b700a2dca4e6fc5b126c4cfa05321baf2a47fa1335d8d1843991e78eb1d44f4bfe032f818
+EBUILD uclibc-ng-1.0.19.ebuild 10508 SHA256 15cc08786ec3b43210a13fd42fe4336b3b6b62d158cf94bfedd6ead80de545e8 SHA512 5fd93b8bb7eb4ccab058b67934481a2a7de2b8cec4a46f404b50bd572f4a5318a85cbd1799f662a27528c2131db7207d6268c3fc4bda6a58e34822ab43966b8c WHIRLPOOL d2c7e2df90c84b7db229c2449e08f191cb92f4f759e20ab0c8b2ee37db3d18e90381aba9e508d868eafd3fe7d04ae6c394b328c08fb01368d49b5f93c8e8f073
+EBUILD uclibc-ng-1.0.20.ebuild 10564 SHA256 b829c30a628e71c283e31ec672f49139f79fed3e3b2360191afaf7a6d13f132b SHA512 ec54d3cf80a5a8ed9349ce7a180e64bd78fe52d76fa86d77652080f784fab8507904a2f7a05e8d5139aa003f2f5dfadca9400e2f79ec1957fadc67acf1446016 WHIRLPOOL dd5e07edce2a988219987fcd46203283b6dee45d4094b59a32af2a580f30090a4671f666a3a9a1085e7bf6983b0e2530079ba5dd9c74f7737786472e89b38ba7
+EBUILD uclibc-ng-1.0.22.ebuild 10606 SHA256 32bc44a1fefab87744e76d0b44ea7d0217c0bc4986a23bcb058902ea3e791715 SHA512 cd2a8b16097a17769eedccb64c093837b24949c22bbe946f16b981ab1ff83ac99c20cf783840f67526aa63252cc52f4ec8b2a4819df0e876d1c047bdccd36c9e WHIRLPOOL 4778722a4e040dfe6c3d81163736600c6cff78cc1f68aaf7e70e3dee6b1535674f9ca71c63c6667ae62664096dfc7f9caf2f6c81ee33fb4e1d77ca63f776658e
+EBUILD uclibc-ng-1.0.23.ebuild 10608 SHA256 29f030c27fac97d2ececd03f4cb8c5ec9402be7a5d127e0a5ce152f71ff59ab7 SHA512 f4f6590534f3a66efe3b57ea0e7d9fb9c89caea5bef51d69597094059f66467b7d70d1aed0829a7d948e8d4dce1895d25efa33c8495a93619fbb637ba2ee800e WHIRLPOOL 206a8ad4f57f777caa2a3f9d927c86dc044f067f08b7470bf69cea99d017e4af8bacbf3e6550282240b08b808818dbd01d54209560af3167ef2537ddf06bdd7f
+EBUILD uclibc-ng-1.0.24-r1.ebuild 10656 SHA256 58fd79dae262b978b34b172a35457079bb32a70d46037b92cea0b23eb4863ade SHA512 a12884773b033251dcc8b77606aa7579a649152a94e48e246cce4480a5d7d2a1f48e28cd0cff3b43661b1226b252964233dc41b6d771ac6c346eb61f44f01645 WHIRLPOOL aa78ce0d1228287a55ce25fd72a48f942dedefeba8fc600996aaac269870e1005ace5775afa6ed0949f9d4024c1c84b0ea39ff8215a9fab82a168b0217a3fbb3
+EBUILD uclibc-ng-1.0.24.ebuild 10606 SHA256 32bc44a1fefab87744e76d0b44ea7d0217c0bc4986a23bcb058902ea3e791715 SHA512 cd2a8b16097a17769eedccb64c093837b24949c22bbe946f16b981ab1ff83ac99c20cf783840f67526aa63252cc52f4ec8b2a4819df0e876d1c047bdccd36c9e WHIRLPOOL 4778722a4e040dfe6c3d81163736600c6cff78cc1f68aaf7e70e3dee6b1535674f9ca71c63c6667ae62664096dfc7f9caf2f6c81ee33fb4e1d77ca63f776658e
+EBUILD uclibc-ng-1.0.25.ebuild 10564 SHA256 b829c30a628e71c283e31ec672f49139f79fed3e3b2360191afaf7a6d13f132b SHA512 ec54d3cf80a5a8ed9349ce7a180e64bd78fe52d76fa86d77652080f784fab8507904a2f7a05e8d5139aa003f2f5dfadca9400e2f79ec1957fadc67acf1446016 WHIRLPOOL dd5e07edce2a988219987fcd46203283b6dee45d4094b59a32af2a580f30090a4671f666a3a9a1085e7bf6983b0e2530079ba5dd9c74f7737786472e89b38ba7
+EBUILD uclibc-ng-1.0.26.ebuild 10604 SHA256 b0a425fb23714c6340e1763364bc0ffb18154de205f6f106ba214eaa1549caa9 SHA512 769dc912114cd618cf936c7f49323999a1c504429956b3f31cb2e6da74e95f2fa533b69ddaaafee9b71f8973dada12c3778379e89c7108f3f24994218739aeb4 WHIRLPOOL e2d740f14909eaee094d3c784a0bca7a4ad6b1dcf69072ef4656e7459aaa40b35a6a50b8db144494229ef4e5e09fe66df77e850841fd4fb386edf0f53c4b6f45
+EBUILD uclibc-ng-9999.ebuild 10568 SHA256 9920b5bb59de46908cbdc273ac7d6dc2a258bad1d3cc7b22e258554e95399741 SHA512 a37488a645cd5f69f4dff6cf98533775bedf81cac1630eb4c0818ff2065a2286182a55e2473defff0c6b65d23038ede8914bd2ce62431644bda6c60d955b8eab WHIRLPOOL dd3ed340443296c8e6b01e9c3d1f60fab602e50c777078b1f18aabe48e0d412215405bc7020eb991c68c5914dea9961acf2f7393af15ce52758595984545c971
+MISC ChangeLog 3668 SHA256 46d4477ade27bba3a3eccecb90c90b623542c31174e9928dec4b28006b753fae SHA512 b8f80f6b95b3186747629b8b96daca80ed1db4e783f8dacb1247edbd26a7a41521e05c613c74542467f432b6e18e90cfed07a91477419b1cfdacc17a2004b3d0 WHIRLPOOL 28cfd122a92d958d277bee820ed4ac9463c1b207175e1cb9d0f75c7885c3f1e1ea7827a5a83a6d410499cbef5ce37fe2f9c3037bfe95d5629b9e783bd82ee149
+MISC metadata.xml 877 SHA256 c7ff8d2a5338653d6d819e5f158b9862c44292c866547406173f849b0a151f4a SHA512 3988e346916b283836e5c3d094eec4f25c66763e4e10a6413fe97f98629e1f14b67d6013f13f9ca2e2712dd638567973c02e6ebcce3554c55caf5483c3c9dfd4 WHIRLPOOL 5ee10f6effb5b9587bd47721b13b7054e5f3a5ddda90df3d330abd80b1e09bca2ffe70467374cf7122371a2c8bd2c2a0a87a9249203cf8a3daf2bda37e9f336e
diff --git a/sys-libs/uclibc-ng/files/uclibc-compat-r1.patch b/sys-libs/uclibc-ng/files/uclibc-compat-r1.patch
new file mode 100644
index 000000000000..f47e0f9a0152
--- /dev/null
+++ b/sys-libs/uclibc-ng/files/uclibc-compat-r1.patch
@@ -0,0 +1,15 @@
+diff -Naur uClibc-ng-1.0.18.orig/ldso/ldso/Makefile.in uClibc-ng-1.0.18/ldso/ldso/Makefile.in
+--- uClibc-ng-1.0.18.orig/ldso/ldso/Makefile.in	2016-09-27 15:26:37.000000000 -0400
++++ uClibc-ng-1.0.18/ldso/ldso/Makefile.in	2016-10-01 06:31:44.106589780 -0400
+@@ -80,11 +80,6 @@
+ $(ldso:.$(ABI_VERSION)=): | $(top_builddir)lib
+ $(ldso:.$(ABI_VERSION)=): $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a
+ 	$(call link.so,$(ldso_FULL_NAME),$(ABI_VERSION))
+-	# link for backward compatibility
+-	(cd $(top_builddir)lib; ln -sf $(UCLIBC_LDSO_NAME).so.$(ABI_VERSION) $(UCLIBC_LDSO_NAME).so.0 )
+-ifeq ($(CONFIG_MIPS_NAN_2008),y)
+-	(cd $(top_builddir)lib; ln -sf $(UCLIBC_LDSO_NAME).so.$(ABI_VERSION) $(UCLIBC_LDSO_NAME)-mipsn8.so.0)
+-endif
+ 
+ $($(UCLIBC_LDSO_NAME)_OUT)/$(UCLIBC_LDSO_NAME)_so.a: $(ldso-y)
+ 	$(Q)$(RM) $@
diff --git a/sys-libs/uclibc-ng/files/uclibc-ng-update-reboot_h.patch b/sys-libs/uclibc-ng/files/uclibc-ng-update-reboot_h.patch
new file mode 100644
index 000000000000..70d7d709b624
--- /dev/null
+++ b/sys-libs/uclibc-ng/files/uclibc-ng-update-reboot_h.patch
@@ -0,0 +1,41 @@
+From 5a305695ad09696bc27c1928deedabbc9e93da55 Mon Sep 17 00:00:00 2001
+From: "Anthony G. Basile" <blueness@gentoo.org>
+Date: Mon, 22 May 2017 09:57:27 -0400
+Subject: [PATCH] include/sys/reboot.h: add constants RB_SW_SUSPEND and
+ RB_KEXEC
+
+This syncs up <sys/reboot.h> with the GNU C library, see their
+commit 1a09dc56.  These constants are needed by init systems like
+openrc.
+
+Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
+---
+ include/sys/reboot.h | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/include/sys/reboot.h b/include/sys/reboot.h
+index bc685aebb..fafd2fb0c 100644
+--- a/include/sys/reboot.h
++++ b/include/sys/reboot.h
+@@ -1,4 +1,4 @@
+-/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
++/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+    This file is part of the GNU C Library.
+ 
+    The GNU C Library is free software; you can redistribute it and/or
+@@ -38,6 +38,12 @@
+ /* Stop system and switch power off if possible.  */
+ #define RB_POWER_OFF	0x4321fedc
+ 
++/* Suspend system using software suspend.  */
++#define RB_SW_SUSPEND	0xd000fce2
++
++/* Reboot system into new kernel.  */
++#define RB_KEXEC	0x45584543
++
+ __BEGIN_DECLS
+ 
+ /* Reboot or halt the system.  */
+-- 
+2.13.0
+
diff --git a/sys-libs/uclibc-ng/metadata.xml b/sys-libs/uclibc-ng/metadata.xml
new file mode 100644
index 000000000000..c54e93bc9e0a
--- /dev/null
+++ b/sys-libs/uclibc-ng/metadata.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>blueness@gentoo.org</email>
+		<name>Anthony G. Basile</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>embedded@gentoo.org</email>
+		<name>Embedded Gentoo</name>
+	</maintainer>
+	<longdescription>
+	uClibc-ng is a small C library for developing embedded Linux systems. It is much
+	smaller than the GNU C Library, but nearly all applications supported by glibc
+	also work perfectly with uClibc-ng. 
+	</longdescription>
+	<use>
+		<flag name="rpc">Enable sun nis/rpc support (you should use libtirpc though)</flag>
+		<flag name="symlink-compat">Explicitly add sym links for libdl.so.0, libm.so.0, and
+		friends for backward compatibility with sys-libs/uclibc-ng-1.0.17 and earlier</flag>
+	</use>
+</pkgmetadata>
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.19.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.19.ebuild
new file mode 100644
index 000000000000..9069233fee33
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.19.ebuild
@@ -0,0 +1,408 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	KEYWORDS="-* amd64 arm ~mips ppc x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+	dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.20.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.20.ebuild
new file mode 100644
index 000000000000..89d2e3727161
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.20.ebuild
@@ -0,0 +1,410 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	KEYWORDS="-* amd64 arm ~mips ppc x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.22.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.22.ebuild
new file mode 100644
index 000000000000..c0d6e8d09535
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.22.ebuild
@@ -0,0 +1,411 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	#KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+	KEYWORDS="-* ~amd64 ~arm ~ppc ~x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.23.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.23.ebuild
new file mode 100644
index 000000000000..d10bebbe0baf
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.23.ebuild
@@ -0,0 +1,411 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	#KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+	KEYWORDS="-* amd64 arm ~mips ppc x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.24-r1.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.24-r1.ebuild
new file mode 100644
index 000000000000..de763355387d
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.24-r1.ebuild
@@ -0,0 +1,412 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	#KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+	KEYWORDS="-* ~amd64 ~arm ~ppc ~x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+	eapply "${FILESDIR}"/${PN}-update-reboot_h.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.24.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.24.ebuild
new file mode 100644
index 000000000000..c0d6e8d09535
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.24.ebuild
@@ -0,0 +1,411 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	#KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+	KEYWORDS="-* ~amd64 ~arm ~ppc ~x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild
new file mode 100644
index 000000000000..89d2e3727161
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild
@@ -0,0 +1,410 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	KEYWORDS="-* amd64 arm ~mips ppc x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild
new file mode 100644
index 000000000000..2492d87f8151
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild
@@ -0,0 +1,411 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	#KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+	KEYWORDS="-* amd64 ~arm ~ppc x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}
diff --git a/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild b/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild
new file mode 100644
index 000000000000..f6ad51297978
--- /dev/null
+++ b/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild
@@ -0,0 +1,410 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+inherit flag-o-matic multilib savedconfig toolchain-funcs versionator
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
+	inherit git-r3
+	MY_P=uclibc-ng-${PV}
+else
+	MY_P=uClibc-ng-${PV}
+fi
+
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc-ng.org/"
+if [[ ${PV} != "9999" ]] ; then
+	PATCH_VER=""
+	SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
+	KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
+fi
+
+LICENSE="LGPL-2"
+SLOT="0"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+RESTRICT="strip"
+
+# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
+#    will delete the ld.so sym link prematurely and break the system. So we
+#    will hard block and give manual migration instructions.
+# 2) Currently uclibc and uclibc-ng's iconv are in bad shape.  We've been using
+#    the breakout library.  The disadvantage here is that we have to sprinkle
+#    LDFAGS=-liconv on build systems that need to link against libiconv.
+RDEPEND="
+	!!sys-libs/uclibc
+	iconv? ( dev-libs/libiconv )"
+
+S=${WORKDIR}/${MY_P}
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CHOST} == ${CTARGET} ]] ; then
+	if [[ ${CATEGORY} == cross-* ]] ; then
+		export CTARGET=${CATEGORY#cross-}
+	fi
+fi
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
+		echo /usr/include
+	else
+		echo /usr/${CTARGET}/usr/include
+	fi
+}
+
+just_headers() {
+	use crosscompile_opts_headers-only && is_crosscompile
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "BIG";;
+		*" LSB "*) echo "LITTLE";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+kconfig_q_opt() {
+	local flag=$1; shift
+	case ${flag} in
+		y|n) ;;
+		*) flag=$(usex ${flag} y n) ;;
+	esac
+
+	local var="defs_${flag}"
+	eval "${var}+=( $* )"
+}
+
+get_opt() {
+	(
+	unset ${1}
+	. ${2:-"${S}"/.config}
+	echo ${!1}
+	)
+}
+
+make_oldconfig() {
+	yes "" 2>/dev/null | emake -s oldconfig >/dev/null
+}
+
+make_config() {
+	restore_config .config
+	if [ -f .config ]; then
+		make_oldconfig
+		return 0
+	else
+		ewarn "Could not locate user configfile, so we will save a default one"
+	fi
+
+	emake ARCH=$1 defconfig >/dev/null
+
+	local defs_{y,n}
+
+	# These are forced off
+	defs_n=(
+		DOASSERTS
+		DODEBUG_PT
+		HAS_NO_THREADS
+		PROPOLICE_BLOCK_ABRT
+		SSP_QUICK_CANARY
+		SUPPORT_LD_DEBUG_EARLY
+		UCLIBC_HAS_CTYPE_UNSAFE
+		UCLIBC_HAS_LOCALE
+		UCLIBC_HAS_SSP_COMPAT
+	)
+
+	# These are forced on
+	defs_y=(
+		COMPAT_ATEXIT
+		DO_C99_MATH
+		DO_XSI_MATH
+		FORCE_SHAREABLE_TEXT_SEGMENTS
+		LDSO_GNU_HASH_SUPPORT
+		LDSO_PRELINK_SUPPORT
+		LDSO_PRELOAD_FILE_SUPPORT
+		LDSO_RUNPATH_OF_EXECUTABLE
+		LDSO_STANDALONE_SUPPORT
+		MALLOC_GLIBC_COMPAT
+		PROPOLICE_BLOCK_SEGV
+		PTHREADS_DEBUG_SUPPORT
+		UCLIBC_HAS_ARC4RANDOM
+		UCLIBC_HAS_BACKTRACE
+		UCLIBC_HAS_BSD_RES_CLOSE
+		UCLIBC_HAS_CONTEXT_FUNCS
+		UCLIBC_HAS_CTYPE_CHECKED
+		UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
+		UCLIBC_HAS_FENV
+		UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
+		UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
+		UCLIBC_HAS_FOPEN_LARGEFILE_MODE
+		UCLIBC_HAS_FTS
+		UCLIBC_HAS_FTW
+		UCLIBC_HAS_GETPT
+		UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
+		UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
+		UCLIBC_HAS_GNU_GLOB
+		UCLIBC_HAS_HEXADECIMAL_FLOATS
+		UCLIBC_HAS_LIBNSL_STUB
+		UCLIBC_HAS_LIBRESOLV_STUB
+		UCLIBC_HAS_LIBUTIL
+		UCLIBC_HAS_NFTW
+		UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
+		UCLIBC_HAS_OBSTACK
+		UCLIBC_HAS_PRINTF_M_SPEC
+		UCLIBC_HAS_PROGRAM_INVOCATION_NAME
+		UCLIBC_HAS_RESOLVER_SUPPORT
+		UCLIBC_HAS_SHA256_CRYPT_IMPL
+		UCLIBC_HAS_SHA512_CRYPT_IMPL
+		UCLIBC_HAS_SSP
+		UCLIBC_HAS_STUBS
+		UCLIBC_HAS_SYS_ERRLIST
+		UCLIBC_HAS_SYS_SIGLIST
+		UCLIBC_HAS_THREADS_NATIVE
+		UCLIBC_HAS_TZ_FILE_READ_MANY
+		UCLIBC_HAS_UTMP
+		UCLIBC_HAS_UTMPX
+		UCLIBC_HAS_WCHAR
+		UCLIBC_HAS_WORDEXP
+		UCLIBC_NTP_LEGACY
+		UCLIBC_SUPPORT_AI_ADDRCONFIG
+		UCLIBC_SUSV2_LEGACY
+		UCLIBC_SUSV3_LEGACY
+		UCLIBC_SUSV3_LEGACY_MACROS
+		UCLIBC_SUSV4_LEGACY
+		UCLIBC_USE_NETLINK
+	)
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
+
+	kconfig_q_opt debug DODEBUG
+	kconfig_q_opt debug SUPPORT_LD_DEBUG
+	kconfig_q_opt debug UCLIBC_HAS_PROFILING
+
+	kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
+
+	kconfig_q_opt rpc UCLIBC_HAS_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC
+	kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC
+
+	kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
+	kconfig_q_opt hardened UCLIBC_BUILD_NOW
+	kconfig_q_opt hardened UCLIBC_BUILD_PIE
+	kconfig_q_opt hardened UCLIBC_BUILD_RELRO
+	kconfig_q_opt hardened UCLIBC_BUILD_SSP
+
+	local count def
+	for count in 1 2 ; do
+		# Run twice as some config opts depend on others being enabled first.
+		for def in ${defs_y[@]} ; do
+			sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
+		done
+		for def in ${defs_n[@]} ; do
+			sed -i -e "s|${def}=y|# ${def} is not set|g" .config
+		done
+		make_oldconfig
+	done
+
+	einfo "Enabled options:"
+	for def in ${defs_y[@]} ; do
+		einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
+	done
+	einfo "Disabled options:"
+	for def in ${defs_n[@]} ; do
+		einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
+	done
+
+	# setup build and run paths
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
+		-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
+		-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
+		-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
+		-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
+		.config || die
+
+	make_oldconfig
+}
+
+pkg_setup() {
+	# Make sure our CHOST is a uclibc toolchain for native compiling
+	if [[ ${CHOST} == ${CTARGET} ]]; then
+		case ${CHOST} in
+			*-uclinux*|*-uclibc*) ;;
+			*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
+		esac
+	fi
+
+	# uClibc-ng doesn't carry old Linux threads, and since we force
+	# threading our only choice is NPTL which requires i486 and later.
+	[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
+}
+
+src_prepare() {
+	local version subversion extraversion
+
+	# uclibc-ng tries to create a two sym link with ld.so,
+	# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
+	# where MAJOR_VERSION != 0 indicates the ABI verison.
+	# We want to get rid of this and just have ABI = 0.
+	eapply "${FILESDIR}"/uclibc-compat-r1.patch
+
+	# We need to change the major.minor.sublevel of uclibc-ng.
+	# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
+	# If we really want the ABI bump, we'll have to hack the gcc
+	# spec file and change the '*link:' rule.
+	version=( $(get_version_components) )
+	if [[ -z ${version[1]} ]]; then
+		subversion=0
+		extraversion=0
+	else
+		subversion=${version[1]}
+		if [[ -z ${version[2]} ]]; then
+			extraversion=0
+		else
+			extraversion=.${version[2]}
+		fi
+	fi
+
+	sed -i \
+		-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
+		-e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \
+		-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
+		-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
+		Rules.mak || die
+
+	eapply_user
+}
+
+src_configure() {
+	# Map our toolchain arch name to the name expected by uClibc-ng.
+	local target=$(tc-arch)
+	case ${target} in
+		amd64) target="x86_64";;
+		arm)   target="arm";;
+		mips)  target="mips";;
+		ppc)   target="powerpc";;
+		x86)   target="i386";;
+	esac
+
+	# Do arch specific configuration by changing the defaults in
+	# extra/Configs/Config.<arch>.  If these are not overridden
+	# by an save .config, they will be selected by default.
+
+	# For i386, i486, i586 and i686
+	local cpu
+	if [[ ${target} == "i386" ]]; then
+		[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
+		sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
+			extra/Configs/Config.i386 || die
+	fi
+
+	# For arm
+	if [[ ${target} == "arm" ]]; then
+		sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
+	fi
+
+	# We set HOSTCC to the proper tuple rather than just 'gcc'
+	sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
+
+	make_config ${target}
+
+	einfo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "ABI:            ${ABI}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	einfo
+}
+
+src_compile() {
+	emake headers
+	just_headers && return 0
+
+	emake
+	if is_crosscompile ; then
+		emake -C utils hostutils
+	else
+		emake utils
+	fi
+}
+
+src_test() {
+	is_crosscompile && return 0
+
+	# assert test fails on pax/grsec enabled kernels
+	# normal vfork test fails in sandbox (both glibc/uclibc)
+	emake UCLIBC_ONLY=1 check
+}
+
+src_install() {
+	local sysroot=${D}
+	is_crosscompile && sysroot+="/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_headers"
+	emake DESTDIR="${sysroot}" ${target}
+
+	save_config .config
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if is_crosscompile ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
+			newbin utils/ldconfig.host ${CTARGET}-ldconfig
+			newbin utils/ldd.host ${CTARGET}-ldd
+		fi
+		return 0
+	fi
+
+	if use symlink-compat; then
+		dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
+		dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
+	fi
+
+	emake DESTDIR="${D}" install_utils
+	dobin extra/scripts/getent
+	dodoc README docs/*.txt
+}
+
+pkg_postinst() {
+	is_crosscompile && return 0
+
+	if [ ! -e "${ROOT}"/etc/TZ ] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+	[ "${ROOT}" != "/" ] && return 0
+	# update cache before reloading init
+	ldconfig
+	# reload init ...
+	/sbin/telinit U 2>/dev/null
+}