[gentoo-commits] repo/gentoo:master commit in: sys-libs/glibc/

[Andreas K. Hüttel]

commit:     b5d899e146d5fc43cf7d5c8635d1df2d4c9dea6a
Author:     Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
AuthorDate: Mon Jan 24 19:54:27 2022 +0000
Commit:     Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Mon Jan 24 19:54:27 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b5d899e1

sys-libs/glibc: Remove old

Package-Manager: Portage-3.0.30, Repoman-3.0.3
Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org>

 sys-libs/glibc/Manifest             |    1 -
 sys-libs/glibc/glibc-2.34-r4.ebuild | 1645 -----------------------------------
 2 files changed, 1646 deletions(-)

diff --git a/sys-libs/glibc/Manifest b/sys-libs/glibc/Manifest
index 0b69d246aafb..19c45b4cde46 100644
--- a/sys-libs/glibc/Manifest
+++ b/sys-libs/glibc/Manifest
@@ -15,7 +15,6 @@ DIST glibc-2.33-patches-6.tar.xz 64632 BLAKE2B f04ca4320d65c8796c67471cb56d3bf00
 DIST glibc-2.33.tar.xz 17031280 BLAKE2B 703d12121c1e2c5d9e0c6ba5341f5fb5c4d9111611a83f2360029b5de9c6e5a5611249d1833684a58ed4afdf49cae614365d87ec8721ba0e5d218f593b1f229d SHA512 4cb5777b68b22b746cc51669e0e9282b43c83f6944e42656e6db7195ebb68f2f9260f130fdeb4e3cfc64efae4f58d96c43d388f52be1eb024ca448084684abdb
 DIST glibc-2.34-patches-11.tar.xz 90452 BLAKE2B 86d0186cfa2684bf772697b8385c05338b91b220ac56f28d4aa20e448f94b8cbf4475c8bfe134945b8ad66c0361f4764da9a6fe0c7b1ad3de88166ffc42b7ed1 SHA512 b0bc7306d64af824a6d85e61b0a3614c3976e57efac130b36b356f6f1088c184638c12723aab108c17e6cb6264d62255707f47645e6d86a0b54345437e1ce343
 DIST glibc-2.34-patches-12.tar.xz 114620 BLAKE2B 46df412e1c20cd2a42115d89a6fd4e25715fcd4e8cd6adda2dfdf384374d1e778b28168e2a4989f06abcfdcd0eec0f096472b198ed51c0b370bec950c44e0867 SHA512 0f9161caec297450cb403208980e9f62f9b29008b04f300f67c99fa37741f169f09d9886a896e1e95ad90a0ede91646150942aadf2724454987c7b3c921432e1
-DIST glibc-2.34-patches-8.tar.xz 61284 BLAKE2B a042d3bfd85cb9732f033eb1489fc4a9d5b42ec599bb320a97a9633047819d1d02b2f00dce601ddb02036f8bf0d67f9b0d6463785965db72d9ac2ce13765fa07 SHA512 1d92abb82ae404b90841217bba3b1ccb7e03799e5f21656b0a2eaaf06bd4a5a2f0fd7ebf927acc72fce0e2af6bb1a2e8658bac431423d07e75dce1f2868bd029
 DIST glibc-2.34.tar.xz 17301232 BLAKE2B 874031192f2f5a3b35c3f5b044a467d4be4e67e8593e070e5b49b901ce8ea6bde2f8d2f6c92fa33b3f61eb723572a9e5f2b45e56064168df80a96d3fdb6fa30c SHA512 15252affd9ef4523a8001db16d497f4fdcb3ddf4cde7fe80e075df0bd3cc6524dc29fbe20229dbf5f97af580556e6b1fac0de321a5fe25322bc3e72f93beb624
 DIST glibc-systemd-20210729.tar.gz 1480 BLAKE2B 37722c7579df782d890e44dbab99c3de52ab466eb9de80d82405e9bb5620bf39ffc8c5f466a435bdb86ef6d36dd7019c0736573916bda6c67d02a2581e0ec979 SHA512 efd75af58b50522c28cdac7abd1fc56555bc1bb042512c90d8340c1ec09c5791b3872a305bf83723252bbde5855b75d958c041083457765c4cfd170732d09238
 DIST glibc-systemd-20210814.tar.gz 1469 BLAKE2B 10fa7bcb46d4fdce9c0ab353cbd30871e9b09a347a13a9c9a3b5777f931aa3c826c158d2e49532c604d4a834f2fab4089b67495fb88d0398945dc50d45ad9ef1 SHA512 5346a9ea459a1e6ccf665389f2a294de1e16f1e3e05cdf07e3dd99ed0e4f6f8b52cc333d4bff3c75ac90ab6ce70cd4ab2b3e126f920ce7979abd6dda56315efc

diff --git a/sys-libs/glibc/glibc-2.34-r4.ebuild b/sys-libs/glibc/glibc-2.34-r4.ebuild
deleted file mode 100644
index 88f72ad1d7db..000000000000
--- a/sys-libs/glibc/glibc-2.34-r4.ebuild
+++ /dev/null
@@ -1,1645 +0,0 @@
-# Copyright 1999-2021 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-# Bumping notes: https://wiki.gentoo.org/wiki/Project:Toolchain/sys-libs/glibc
-# Please read & adapt the page as necessary if obsolete.
-
-# We avoid Python 3.10 here _for now_ (it does work!) to avoid circular dependencies
-# on upgrades as people migrate to libxcrypt.
-# https://wiki.gentoo.org/wiki/User:Sam/Portage_help/Circular_dependencies#Python_and_libcrypt
-PYTHON_COMPAT=( python3_{7,8,9} )
-TMPFILES_OPTIONAL=1
-
-inherit python-any-r1 prefix preserve-libs toolchain-funcs flag-o-matic gnuconfig \
-	multilib systemd multiprocessing tmpfiles
-
-DESCRIPTION="GNU libc C library"
-HOMEPAGE="https://www.gnu.org/software/libc/"
-LICENSE="LGPL-2.1+ BSD HPND ISC inner-net rc PCRE"
-SLOT="2.2"
-
-EMULTILIB_PKG="true"
-
-# Gentoo patchset (ignored for live ebuilds)
-PATCH_VER=8
-PATCH_DEV=dilfridge
-
-if [[ ${PV} == 9999* ]]; then
-	inherit git-r3
-else
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
-	SRC_URI="mirror://gnu/glibc/${P}.tar.xz"
-	SRC_URI+=" https://dev.gentoo.org/~${PATCH_DEV}/distfiles/${P}-patches-${PATCH_VER}.tar.xz"
-fi
-
-RELEASE_VER=${PV}
-
-GCC_BOOTSTRAP_VER=20201208
-
-LOCALE_GEN_VER=2.22
-
-GLIBC_SYSTEMD_VER=20210729
-
-SRC_URI+=" https://gitweb.gentoo.org/proj/locale-gen.git/snapshot/locale-gen-${LOCALE_GEN_VER}.tar.gz"
-SRC_URI+=" multilib-bootstrap? ( https://dev.gentoo.org/~dilfridge/distfiles/gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}.tar.xz )"
-SRC_URI+=" systemd? ( https://gitweb.gentoo.org/proj/toolchain/glibc-systemd.git/snapshot/glibc-systemd-${GLIBC_SYSTEMD_VER}.tar.gz )"
-
-IUSE="audit caps cet +clone3 compile-locales +crypt custom-cflags doc gd headers-only +multiarch multilib multilib-bootstrap nscd profile selinux +ssp +static-libs static-pie suid systemd systemtap test vanilla"
-
-# Minimum kernel version that glibc requires
-MIN_KERN_VER="3.2.0"
-# Minimum pax-utils version needed (which contains any new syscall changes for
-# its seccomp filter!). Please double check this!
-MIN_PAX_UTILS_VER="1.3.3"
-
-# Here's how the cross-compile logic breaks down ...
-#  CTARGET - machine that will target the binaries
-#  CHOST   - machine that will host the binaries
-#  CBUILD  - machine that will build the binaries
-# If CTARGET != CHOST, it means you want a libc for cross-compiling.
-# If CHOST != CBUILD, it means you want to cross-compile the libc.
-#  CBUILD = CHOST = CTARGET    - native build/install
-#  CBUILD != (CHOST = CTARGET) - cross-compile a native build
-#  (CBUILD = CHOST) != CTARGET - libc for cross-compiler
-#  CBUILD != CHOST != CTARGET  - cross-compile a libc for a cross-compiler
-# For install paths:
-#  CHOST = CTARGET  - install into /
-#  CHOST != CTARGET - install into /usr/CTARGET/
-#
-export CBUILD=${CBUILD:-${CHOST}}
-export CTARGET=${CTARGET:-${CHOST}}
-if [[ ${CTARGET} == ${CHOST} ]] ; then
-	if [[ ${CATEGORY} == cross-* ]] ; then
-		export CTARGET=${CATEGORY#cross-}
-	fi
-fi
-
-# Note [Disable automatic stripping]
-# Disabling automatic stripping for a few reasons:
-# - portage's attempt to strip breaks non-native binaries at least on
-#   arm: bug #697428
-# - portage's attempt to strip libpthread.so.0 breaks gdb thread
-#   enumeration: bug #697910. This is quite subtle:
-#   * gdb uses glibc's libthread_db-1.0.so to enumerate threads.
-#   * libthread_db-1.0.so needs access to libpthread.so.0 local symbols
-#     via 'ps_pglobal_lookup' symbol defined in gdb.
-#   * 'ps_pglobal_lookup' uses '.symtab' section table to resolve all
-#     known symbols in 'libpthread.so.0'. Specifically 'nptl_version'
-#     (unexported) is used to sanity check compatibility before enabling
-#     debugging.
-#     Also see https://sourceware.org/gdb/wiki/FAQ#GDB_does_not_see_any_threads_besides_the_one_in_which_crash_occurred.3B_or_SIGTRAP_kills_my_program_when_I_set_a_breakpoint
-#   * normal 'strip' command trims '.symtab'
-#   Thus our main goal here is to prevent 'libpthread.so.0' from
-#   losing it's '.symtab' entries.
-# As Gentoo's strip does not allow us to pass less aggressive stripping
-# options and does not check the machine target we strip selectively.
-
-# We need a new-enough binutils/gcc to match upstream baseline.
-# Also we need to make sure our binutils/gcc supports TLS,
-# and that gcc already contains the hardened patches.
-# Lastly, let's avoid some openssh nastiness, bug 708224, as
-# convenience to our users.
-
-# gzip, grep, awk are needed by locale-gen, bug 740750
-
-BDEPEND="
-	${PYTHON_DEPS}
-	>=app-misc/pax-utils-${MIN_PAX_UTILS_VER}
-	sys-devel/bison
-	doc? ( sys-apps/texinfo )
-	!compile-locales? (
-		app-arch/gzip
-		sys-apps/grep
-		virtual/awk
-	)
-"
-COMMON_DEPEND="
-	gd? ( media-libs/gd:2= )
-	nscd? ( selinux? (
-		audit? ( sys-process/audit )
-		caps? ( sys-libs/libcap )
-	) )
-	suid? ( caps? ( sys-libs/libcap ) )
-	selinux? ( sys-libs/libselinux )
-	systemtap? ( dev-util/systemtap )
-"
-DEPEND="${COMMON_DEPEND}
-	compile-locales? (
-		app-arch/gzip
-		sys-apps/grep
-		virtual/awk
-	)
-	test? ( >=net-dns/libidn2-2.3.0 )
-"
-RDEPEND="${COMMON_DEPEND}
-	app-arch/gzip
-	sys-apps/grep
-	virtual/awk
-	sys-apps/gentoo-functions
-	!<app-misc/pax-utils-${MIN_PAX_UTILS_VER}
-	!<net-misc/openssh-8.1_p1-r2
-"
-
-RESTRICT="!test? ( test )"
-
-if [[ ${CATEGORY} == cross-* ]] ; then
-	BDEPEND+=" !headers-only? (
-		>=${CATEGORY}/binutils-2.27
-		>=${CATEGORY}/gcc-6
-	)"
-	[[ ${CATEGORY} == *-linux* ]] && DEPEND+=" ${CATEGORY}/linux-headers"
-else
-	BDEPEND+="
-		>=sys-devel/binutils-2.27
-		>=sys-devel/gcc-6
-	"
-	DEPEND+=" virtual/os-headers "
-	RDEPEND+="
-		>=net-dns/libidn2-2.3.0
-		vanilla? ( !sys-libs/timezone-data )
-	"
-	PDEPEND+=" !vanilla? ( sys-libs/timezone-data )"
-fi
-
-# Ignore tests whitelisted below
-GENTOO_GLIBC_XFAIL_TESTS="${GENTOO_GLIBC_XFAIL_TESTS:-yes}"
-
-# The following tests fail due to the Gentoo build system and are thus
-# executed but ignored:
-XFAIL_TEST_LIST=(
-	# 9) Failures of unknown origin
-	tst-latepthread
-
-	# buggy test, assumes /dev/ and /dev/null on a single filesystem
-	# 'mount --bind /dev/null /chroot/dev/null' breaks it.
-	# https://sourceware.org/PR25909
-	tst-support_descriptors
-
-	# Flaky test, known to fail occasionally:
-	# https://sourceware.org/PR19329
-	# https://bugs.gentoo.org/719674#c12
-	tst-stack4
-)
-
-#
-# Small helper functions
-#
-
-is_crosscompile() {
-	[[ ${CHOST} != ${CTARGET} ]]
-}
-
-just_headers() {
-	is_crosscompile && use headers-only
-}
-
-alt_prefix() {
-	is_crosscompile && echo /usr/${CTARGET}
-}
-
-# This prefix is applicable to CHOST when building against this
-# glibc. It is baked into the library at configure time.
-host_eprefix() {
-	is_crosscompile || echo "${EPREFIX}"
-}
-
-# This prefix is applicable to CBUILD when building against this
-# glibc. It determines the destination path at install time.
-build_eprefix() {
-	is_crosscompile && echo "${EPREFIX}"
-}
-
-# We need to be able to set alternative headers for compiling for non-native
-# platform. Will also become useful for testing kernel-headers without screwing
-# up the whole system.
-alt_headers() {
-	echo ${ALT_HEADERS:=$(alt_prefix)/usr/include}
-}
-
-alt_build_headers() {
-	if [[ -z ${ALT_BUILD_HEADERS} ]] ; then
-		ALT_BUILD_HEADERS="$(host_eprefix)$(alt_headers)"
-		if tc-is-cross-compiler ; then
-			ALT_BUILD_HEADERS=${SYSROOT}$(alt_headers)
-			if [[ ! -e ${ALT_BUILD_HEADERS}/linux/version.h ]] ; then
-				local header_path=$(echo '#include <linux/version.h>' | $(tc-getCPP ${CTARGET}) ${CFLAGS} 2>&1 | grep -o '[^"]*linux/version.h')
-				ALT_BUILD_HEADERS=${header_path%/linux/version.h}
-			fi
-		fi
-	fi
-	echo "${ALT_BUILD_HEADERS}"
-}
-
-alt_libdir() {
-	echo $(alt_prefix)/$(get_libdir)
-}
-alt_usrlibdir() {
-	echo $(alt_prefix)/usr/$(get_libdir)
-}
-
-builddir() {
-	echo "${WORKDIR}/build-${ABI}-${CTARGET}-$1"
-}
-
-do_compile_test() {
-	local ret save_cflags=${CFLAGS}
-	CFLAGS+=" $1"
-	shift
-
-	pushd "${T}" >/dev/null
-
-	rm -f glibc-test*
-	printf '%b' "$*" > glibc-test.c
-
-	# Most of the time CC is already set, but not in early sanity checks.
-	nonfatal emake glibc-test CC="${CC-$(tc-getCC ${CTARGET})}"
-	ret=$?
-
-	popd >/dev/null
-
-	CFLAGS=${save_cflags}
-	return ${ret}
-}
-
-do_run_test() {
-	local ret
-
-	if [[ ${MERGE_TYPE} == "binary" ]] ; then
-		# ignore build failures when installing a binary package #324685
-		do_compile_test "" "$@" 2>/dev/null || return 0
-	else
-		if ! do_compile_test "" "$@" ; then
-			ewarn "Simple build failed ... assuming this is desired #324685"
-			return 0
-		fi
-	fi
-
-	pushd "${T}" >/dev/null
-
-	./glibc-test
-	ret=$?
-	rm -f glibc-test*
-
-	popd >/dev/null
-
-	return ${ret}
-}
-
-setup_target_flags() {
-	# This largely mucks with compiler flags.  None of which should matter
-	# when building up just the headers.
-	just_headers && return 0
-
-	case $(tc-arch) in
-		x86)
-			# -march needed for #185404 #199334
-			# TODO: When creating the first glibc cross-compile, this test will
-			# always fail as it does a full link which in turn requires glibc.
-			# Probably also applies when changing multilib profile settings (e.g.
-			# enabling x86 when the profile was amd64-only previously).
-			# We could change main to _start and pass -nostdlib here so that we
-			# only test the gcc code compilation.  Or we could do a compile and
-			# then look for the symbol via scanelf.
-			if ! do_compile_test "" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n'; then
-				local t=${CTARGET_OPT:-${CTARGET}}
-				t=${t%%-*}
-				filter-flags '-march=*'
-				export CFLAGS="-march=${t} ${CFLAGS}"
-				einfo "Auto adding -march=${t} to CFLAGS #185404"
-			fi
-		;;
-		amd64)
-			# -march needed for #185404 #199334
-			# TODO: See cross-compile issues listed above for x86.
-			[[ ${ABI} == x86 ]] &&
-			if ! do_compile_test "${CFLAGS_x86}" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n'; then
-				local t=${CTARGET_OPT:-${CTARGET}}
-				t=${t%%-*}
-				# Normally the target is x86_64-xxx, so turn that into the -march that
-				# gcc actually accepts. #528708
-				[[ ${t} == "x86_64" ]] && t="x86-64"
-				filter-flags '-march=*'
-				# ugly, ugly, ugly.  ugly.
-				CFLAGS_x86=$(CFLAGS=${CFLAGS_x86} filter-flags '-march=*'; echo "${CFLAGS}")
-				export CFLAGS_x86="${CFLAGS_x86} -march=${t}"
-				einfo "Auto adding -march=${t} to CFLAGS_x86 #185404 (ABI=${ABI})"
-			fi
-
-			# Workaround for https://bugs.gentoo.org/823780. This really should
-			# be removed when the upstream bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103275
-			# is fixed in our tree, either via 11.3 or an 11.2p2 patch set.
-			if [[ ${ABI} == x86 ]] && tc-is-gcc && (($(gcc-major-version) == 11)) && (($(gcc-minor-version) <= 2)) && (($(gcc-micro-version) == 0)); then
-				export CFLAGS_x86="${CFLAGS_x86} -mno-avx512f"
-				einfo "Auto adding -mno-avx512f to CFLAGS_x86 (bug #823780) (ABI=${ABI})"
-			fi
-		;;
-		mips)
-			# The mips abi cannot support the GNU style hashes. #233233
-			filter-ldflags -Wl,--hash-style=gnu -Wl,--hash-style=both
-		;;
-		ppc|ppc64)
-			# Many arch-specific implementations do not work on ppc with
-			# cache-block not equal to 128 bytes. This breaks memset:
-			#   https://sourceware.org/PR26522
-			#   https://bugs.gentoo.org/737996
-			# Use default -mcpu=. For ppc it means non-multiarch setup.
-			filter-flags '-mcpu=*'
-		;;
-		sparc)
-			# Both sparc and sparc64 can use -fcall-used-g6.  -g7 is bad, though.
-			filter-flags "-fcall-used-g7"
-			append-flags "-fcall-used-g6"
-
-			local cpu
-			case ${CTARGET} in
-			sparc64-*)
-				cpu="sparc64"
-				case $(get-flag mcpu) in
-				v9)
-					# We need to force at least v9a because the base build doesn't
-					# work with just v9.
-					# https://sourceware.org/bugzilla/show_bug.cgi?id=19477
-					append-flags "-Wa,-xarch=v9a"
-					;;
-				esac
-				;;
-			sparc-*)
-				case $(get-flag mcpu) in
-				v8|supersparc|hypersparc|leon|leon3)
-					cpu="sparcv8"
-					;;
-				*)
-					cpu="sparcv9"
-					;;
-				esac
-			;;
-			esac
-			[[ -n ${cpu} ]] && CTARGET_OPT="${cpu}-${CTARGET#*-}"
-		;;
-	esac
-}
-
-setup_flags() {
-	# Make sure host make.conf doesn't pollute us
-	if is_crosscompile || tc-is-cross-compiler ; then
-		CHOST=${CTARGET} strip-unsupported-flags
-	fi
-
-	# Store our CFLAGS because it's changed depending on which CTARGET
-	# we are building when pulling glibc on a multilib profile
-	CFLAGS_BASE=${CFLAGS_BASE-${CFLAGS}}
-	CFLAGS=${CFLAGS_BASE}
-	CXXFLAGS_BASE=${CXXFLAGS_BASE-${CXXFLAGS}}
-	CXXFLAGS=${CXXFLAGS_BASE}
-	ASFLAGS_BASE=${ASFLAGS_BASE-${ASFLAGS}}
-	ASFLAGS=${ASFLAGS_BASE}
-
-	# Allow users to explicitly avoid flag sanitization via
-	# USE=custom-cflags.
-	if ! use custom-cflags; then
-		# Over-zealous CFLAGS can often cause problems.  What may work for one
-		# person may not work for another.  To avoid a large influx of bugs
-		# relating to failed builds, we strip most CFLAGS out to ensure as few
-		# problems as possible.
-		strip-flags
-		# Lock glibc at -O2; we want to be conservative here.
-		filter-flags '-O?'
-		append-flags -O2
-	fi
-
-	strip-unsupported-flags
-	filter-flags -m32 -m64 '-mabi=*'
-
-	# glibc aborts if rpath is set by LDFLAGS
-	filter-ldflags '-Wl,-rpath=*'
-
-	# ld can't use -r & --relax at the same time, bug #788901
-	# https://sourceware.org/PR27837
-	filter-ldflags '-Wl,--relax'
-
-	# #492892
-	filter-flags -frecord-gcc-switches
-
-	# #829583
-	filter-lfs-flags
-
-	unset CBUILD_OPT CTARGET_OPT
-	if use multilib ; then
-		CTARGET_OPT=$(get_abi_CTARGET)
-		[[ -z ${CTARGET_OPT} ]] && CTARGET_OPT=$(get_abi_CHOST)
-	fi
-
-	setup_target_flags
-
-	if [[ -n ${CTARGET_OPT} && ${CBUILD} == ${CHOST} ]] && ! is_crosscompile; then
-		CBUILD_OPT=${CTARGET_OPT}
-	fi
-
-	# glibc's headers disallow -O0 and fail at build time:
-	#  include/libc-symbols.h:75:3: #error "glibc cannot be compiled without optimization"
-	replace-flags -O0 -O1
-
-	filter-flags '-fstack-protector*'
-}
-
-want_tls() {
-	# Archs that can use TLS (Thread Local Storage)
-	case $(tc-arch) in
-		x86)
-			# requires i486 or better #106556
-			[[ ${CTARGET} == i[4567]86* ]] && return 0
-			return 1
-		;;
-	esac
-	return 0
-}
-
-want__thread() {
-	want_tls || return 1
-
-	# For some reason --with-tls --with__thread is causing segfaults on sparc32.
-	[[ ${PROFILE_ARCH} == "sparc" ]] && return 1
-
-	[[ -n ${WANT__THREAD} ]] && return ${WANT__THREAD}
-
-	# only test gcc -- can't test linking yet
-	tc-has-tls -c ${CTARGET}
-	WANT__THREAD=$?
-
-	return ${WANT__THREAD}
-}
-
-use_multiarch() {
-	# Allow user to disable runtime arch detection in multilib.
-	use multiarch || return 1
-	# Make sure binutils is new enough to support indirect functions,
-	# #336792. This funky sed supports gold and bfd linkers.
-	local bver nver
-	bver=$($(tc-getLD ${CTARGET}) -v | sed -n -r '1{s:[^0-9]*::;s:^([0-9.]*).*:\1:;p}')
-	case $(tc-arch ${CTARGET}) in
-	amd64|x86) nver="2.20" ;;
-	arm)       nver="2.22" ;;
-	hppa)      nver="2.23" ;;
-	ppc|ppc64) nver="2.20" ;;
-	# ifunc support was added in 2.23, but glibc also needs
-	# machinemode which is in 2.24.
-	s390)      nver="2.24" ;;
-	sparc)     nver="2.21" ;;
-	*)         return 1 ;;
-	esac
-	ver_test ${bver} -ge ${nver}
-}
-
-# Setup toolchain variables that had historically been defined in the
-# profiles for these archs.
-setup_env() {
-	# silly users
-	unset LD_RUN_PATH
-	unset LD_ASSUME_KERNEL
-
-	if is_crosscompile || tc-is-cross-compiler ; then
-		multilib_env ${CTARGET_OPT:-${CTARGET}}
-
-		if ! use multilib ; then
-			MULTILIB_ABIS=${DEFAULT_ABI}
-		else
-			MULTILIB_ABIS=${MULTILIB_ABIS:-${DEFAULT_ABI}}
-		fi
-
-		# If the user has CFLAGS_<CTARGET> in their make.conf, use that,
-		# and fall back on CFLAGS.
-		local VAR=CFLAGS_${CTARGET//[-.]/_}
-		CFLAGS=${!VAR-${CFLAGS}}
-		einfo " $(printf '%15s' 'Manual CFLAGS:')   ${CFLAGS}"
-	fi
-
-	setup_flags
-
-	export ABI=${ABI:-${DEFAULT_ABI:-default}}
-
-	if just_headers ; then
-		# Avoid mixing host's CC and target's CFLAGS_${ABI}:
-		# At this bootstrap stage we have only binutils for
-		# target but not compiler yet.
-		einfo "Skip CC ABI injection. We can't use (cross-)compiler yet."
-		return 0
-	fi
-
-	# Glibc does not work with gold (for various reasons) #269274.
-	tc-ld-disable-gold
-
-	if use doc ; then
-		export MAKEINFO=makeinfo
-	else
-		export MAKEINFO=/dev/null
-	fi
-
-	# Reset CC and CXX to the value at start of emerge
-	export CC=${__ORIG_CC:-${CC:-$(tc-getCC ${CTARGET})}}
-	export CXX=${__ORIG_CXX:-${CXX:-$(tc-getCXX ${CTARGET})}}
-
-	# and make sure __ORIC_CC and __ORIG_CXX is defined now.
-	export __ORIG_CC=${CC}
-	export __ORIG_CXX=${CXX}
-
-	if tc-is-clang && ! use custom-cflags && ! is_crosscompile ; then
-
-		# If we are running in an otherwise clang/llvm environment, we need to
-		# recover the proper gcc and binutils settings here, at least until glibc
-		# is finally building with clang. So let's override everything that is
-		# set in the clang profiles.
-		# Want to shoot yourself into the foot? Set USE=custom-cflags, that's always
-		# a good start into that direction.
-		# Also, if you're crosscompiling, let's assume you know what you are doing.
-		# Hopefully.
-
-		local current_binutils_path=$(binutils-config -B)
-		local current_gcc_path=$(gcc-config -B)
-		einfo "Overriding clang configuration, since it won't work here"
-
-		export CC="${current_gcc_path}/gcc"
-		export CXX="${current_gcc_path}/g++"
-		export LD="${current_binutils_path}/ld.bfd"
-		export AR="${current_binutils_path}/ar"
-		export AS="${current_binutils_path}/as"
-		export NM="${current_binutils_path}/nm"
-		export STRIP="${current_binutils_path}/strip"
-		export RANLIB="${current_binutils_path}/ranlib"
-		export OBJCOPY="${current_binutils_path}/objcopy"
-		export STRINGS="${current_binutils_path}/strings"
-		export OBJDUMP="${current_binutils_path}/objdump"
-		export READELF="${current_binutils_path}/readelf"
-		export ADDR2LINE="${current_binutils_path}/addr2line"
-
-		# do we need to also do flags munging here? yes! at least...
-		filter-flags '-fuse-ld=*'
-		filter-flags '-D_FORTIFY_SOURCE=*'
-
-	else
-
-		# this is the "normal" case
-
-		export CC="$(tc-getCC ${CTARGET})"
-		export CXX="$(tc-getCXX ${CTARGET})"
-
-		# Always use tuple-prefixed toolchain. For non-native ABI glibc's configure
-		# can't detect them automatically due to ${CHOST} mismatch and fallbacks
-		# to unprefixed tools. Similar to multilib.eclass:multilib_toolchain_setup().
-		export NM="$(tc-getNM ${CTARGET})"
-		export READELF="$(tc-getREADELF ${CTARGET})"
-
-	fi
-
-	# We need to export CFLAGS with abi information in them because glibc's
-	# configure script checks CFLAGS for some targets (like mips).  Keep
-	# around the original clean value to avoid appending multiple ABIs on
-	# top of each other. (Why does the comment talk about CFLAGS if the code
-	# acts on CC?)
-	export __GLIBC_CC=${CC}
-	export __GLIBC_CXX=${CXX}
-
-	export __abi_CFLAGS="$(get_abi_CFLAGS)"
-
-	# CFLAGS can contain ABI-specific flags like -mfpu=neon, see bug #657760
-	# To build .S (assembly) files with the same ABI-specific flags
-	# upstream currently recommends adding CFLAGS to CC/CXX:
-	#    https://sourceware.org/PR23273
-	# Note: Passing CFLAGS via CPPFLAGS overrides glibc's arch-specific CFLAGS
-	# and breaks multiarch support. See 659030#c3 for an example.
-	# The glibc configure script doesn't properly use LDFLAGS all the time.
-	export CC="${__GLIBC_CC} ${__abi_CFLAGS} ${CFLAGS} ${LDFLAGS}"
-
-	# Some of the tests are written in C++, so we need to force our multlib abis in, bug 623548
-	export CXX="${__GLIBC_CXX} ${__abi_CFLAGS} ${CFLAGS}"
-
-	if is_crosscompile; then
-		# Assume worst-case bootstrap: glibc is buil first time
-		# when ${CTARGET}-g++ is not available yet. We avoid
-		# building auxiliary programs that require C++: bug #683074
-		# It should not affect final result.
-		export libc_cv_cxx_link_ok=no
-		# The line above has the same effect. We set CXX explicitly
-		# to make build logs less confusing.
-		export CXX=
-	fi
-}
-
-foreach_abi() {
-	setup_env
-
-	local ret=0
-	local abilist=""
-	if use multilib ; then
-		abilist=$(get_install_abis)
-	else
-		abilist=${DEFAULT_ABI}
-	fi
-	local -x ABI
-	for ABI in ${abilist:-default} ; do
-		setup_env
-		einfo "Running $1 for ABI ${ABI}"
-		$1
-		: $(( ret |= $? ))
-	done
-	return ${ret}
-}
-
-glibc_banner() {
-	local b="Gentoo ${PVR}"
-	[[ -n ${PATCH_VER} ]] && ! use vanilla && b+=" p${PATCH_VER}"
-	echo "${b}"
-}
-
-# The following Kernel version handling functions are mostly copied from portage
-# source. It's better not to use linux-info.eclass here since a) it adds too
-# much magic, see bug 326693 for some of the arguments, and b) some of the
-# functions are just not provided.
-
-g_get_running_KV() {
-	uname -r
-	return $?
-}
-
-g_KV_major() {
-	[[ -z $1 ]] && return 1
-	local KV=$@
-	echo "${KV%%.*}"
-}
-
-g_KV_minor() {
-	[[ -z $1 ]] && return 1
-	local KV=$@
-	KV=${KV#*.}
-	echo "${KV%%.*}"
-}
-
-g_KV_micro() {
-	[[ -z $1 ]] && return 1
-	local KV=$@
-	KV=${KV#*.*.}
-	echo "${KV%%[^[:digit:]]*}"
-}
-
-g_KV_to_int() {
-	[[ -z $1 ]] && return 1
-	local KV_MAJOR=$(g_KV_major "$1")
-	local KV_MINOR=$(g_KV_minor "$1")
-	local KV_MICRO=$(g_KV_micro "$1")
-	local KV_int=$(( KV_MAJOR * 65536 + KV_MINOR * 256 + KV_MICRO ))
-
-	# We make version 2.2.0 the minimum version we will handle as
-	# a sanity check ... if its less, we fail ...
-	if [[ ${KV_int} -ge 131584 ]] ; then
-		echo "${KV_int}"
-		return 0
-	fi
-	return 1
-}
-
-g_int_to_KV() {
-	local version=$1 major minor micro
-	major=$((version / 65536))
-	minor=$(((version % 65536) / 256))
-	micro=$((version % 256))
-	echo ${major}.${minor}.${micro}
-}
-
-eend_KV() {
-	[[ $(g_KV_to_int $1) -ge $(g_KV_to_int $2) ]]
-	eend $?
-}
-
-get_kheader_version() {
-	printf '#include <linux/version.h>\nLINUX_VERSION_CODE\n' | \
-	$(tc-getCPP ${CTARGET}) -I "$(build_eprefix)$(alt_build_headers)" - | \
-	tail -n 1
-}
-
-# We collect all sanity checks here. Consistency is not guranteed between
-# pkg_ and src_ phases, so we call this function both in pkg_pretend and in
-# src_unpack.
-sanity_prechecks() {
-	# Prevent native builds from downgrading
-	if [[ ${MERGE_TYPE} != "buildonly" ]] && \
-	   [[ -z ${ROOT} ]] && \
-	   [[ ${CBUILD} == ${CHOST} ]] && \
-	   [[ ${CHOST} == ${CTARGET} ]] ; then
-
-		# The high rev # is to allow people to downgrade between -r#
-		# versions. We want to block 2.20->2.19, but 2.20-r3->2.20-r2
-		# should be fine. Hopefully we never actually use a r# this
-		# high.
-		if has_version ">${CATEGORY}/${P}-r10000" ; then
-			eerror "Sanity check to keep you from breaking your system:"
-			eerror " Downgrading glibc is not supported and a sure way to destruction."
-			[[ ${I_ALLOW_TO_BREAK_MY_SYSTEM} = yes ]] || die "Aborting to save your system."
-		fi
-
-		if ! do_run_test '#include <unistd.h>\n#include <sys/syscall.h>\nint main(){return syscall(1000)!=-1;}\n' ; then
-			eerror "Your old kernel is broken. You need to update it to a newer"
-			eerror "version as syscall(<bignum>) will break. See bug 279260."
-			die "Old and broken kernel."
-		fi
-	fi
-
-	# Users have had a chance to phase themselves, time to give em the boot
-	if [[ -e ${EROOT}/etc/locale.gen ]] && [[ -e ${EROOT}/etc/locales.build ]] ; then
-		eerror "You still haven't deleted ${EROOT}/etc/locales.build."
-		eerror "Do so now after making sure ${EROOT}/etc/locale.gen is kosher."
-		die "Lazy upgrader detected"
-	fi
-
-	if [[ ${CTARGET} == i386-* ]] ; then
-		eerror "i386 CHOSTs are no longer supported."
-		eerror "Chances are you don't actually want/need i386."
-		eerror "Please read https://www.gentoo.org/doc/en/change-chost.xml"
-		die "Please fix your CHOST"
-	fi
-
-	if [[ -e /proc/xen ]] && [[ $(tc-arch) == "x86" ]] && ! is-flag -mno-tls-direct-seg-refs ; then
-		ewarn "You are using Xen but don't have -mno-tls-direct-seg-refs in your CFLAGS."
-		ewarn "This will result in a 50% performance penalty when running with a 32bit"
-		ewarn "hypervisor, which is probably not what you want."
-	fi
-
-	# ABI-specific checks follow here. Hey, we have a lot more specific conditions that
-	# we test for...
-	if ! is_crosscompile ; then
-		if use amd64 && use multilib && [[ ${MERGE_TYPE} != "binary" ]] ; then
-			ebegin "Checking that IA32 emulation is enabled in the running kernel"
-			echo 'int main(){return 0;}' > "${T}/check-ia32-emulation.c"
-			local STAT
-			if "${CC-${CHOST}-gcc}" ${CFLAGS_x86} "${T}/check-ia32-emulation.c" -o "${T}/check-ia32-emulation.elf32"; then
-				"${T}/check-ia32-emulation.elf32"
-				STAT=$?
-			else
-				# Don't fail here to allow single->multi ABI switch
-				# or recover from breakage like bug #646424
-				ewarn "Failed to compile the ABI test. Broken host glibc?"
-				STAT=0
-			fi
-			rm -f "${T}/check-ia32-emulation.elf32"
-			eend $STAT
-			[[ $STAT -eq 0 ]] || die "CONFIG_IA32_EMULATION must be enabled in the kernel to compile a multilib glibc."
-		fi
-
-	fi
-
-	# When we actually have to compile something...
-	if ! just_headers && [[ ${MERGE_TYPE} != "binary" ]] ; then
-		ebegin "Checking gcc for __thread support"
-		if ! eend $(want__thread ; echo $?) ; then
-			echo
-			eerror "Could not find a gcc that supports the __thread directive!"
-			eerror "Please update your binutils/gcc and try again."
-			die "No __thread support in gcc!"
-		fi
-
-		if [[ ${CTARGET} == *-linux* ]] ; then
-			local run_kv build_kv want_kv
-
-			run_kv=$(g_get_running_KV)
-			build_kv=$(g_int_to_KV $(get_kheader_version))
-			want_kv=${MIN_KERN_VER}
-
-			if ! is_crosscompile && ! tc-is-cross-compiler ; then
-				# Building fails on an non-supporting kernel
-				ebegin "Checking running kernel version (${run_kv} >= ${want_kv})"
-				if ! eend_KV ${run_kv} ${want_kv} ; then
-					echo
-					eerror "You need a kernel of at least ${want_kv}!"
-					die "Kernel version too low!"
-				fi
-			fi
-
-			ebegin "Checking linux-headers version (${build_kv} >= ${want_kv})"
-			if ! eend_KV ${build_kv} ${want_kv} ; then
-				echo
-				eerror "You need linux-headers of at least ${want_kv}!"
-				die "linux-headers version too low!"
-			fi
-		fi
-	fi
-}
-
-upgrade_warning() {
-	if [[ ${MERGE_TYPE} != buildonly && -n ${REPLACING_VERSIONS} && -z ${ROOT} ]]; then
-		local oldv newv=$(ver_cut 1-2 ${PV})
-		for oldv in ${REPLACING_VERSIONS}; do
-			if ver_test ${oldv} -lt ${newv}; then
-				ewarn "After upgrading glibc, please restart all running processes."
-				ewarn "Be sure to include init (telinit u) or systemd (systemctl daemon-reexec)."
-				ewarn "Alternatively, reboot your system."
-				break
-			fi
-		done
-	fi
-}
-
-#
-# the phases
-#
-
-# pkg_pretend
-
-pkg_pretend() {
-	# All the checks...
-	einfo "Checking general environment sanity."
-	sanity_prechecks
-	upgrade_warning
-}
-
-pkg_setup() {
-	# see bug 682570
-	[[ -z ${BOOTSTRAP_RAP} ]] && python-any-r1_pkg_setup
-}
-
-# src_unpack
-
-src_unpack() {
-	# Consistency is not guaranteed between pkg_ and src_ ...
-	sanity_prechecks
-
-	use multilib-bootstrap && unpack gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}.tar.xz
-
-	setup_env
-
-	if [[ ${PV} == 9999* ]] ; then
-		EGIT_REPO_URI="https://anongit.gentoo.org/git/proj/toolchain/glibc-patches.git"
-		EGIT_CHECKOUT_DIR=${WORKDIR}/patches-git
-		git-r3_src_unpack
-		mv patches-git/9999 patches || die
-
-		EGIT_REPO_URI="https://sourceware.org/git/glibc.git"
-		EGIT_CHECKOUT_DIR=${S}
-		git-r3_src_unpack
-	else
-		unpack ${P}.tar.xz
-
-		cd "${WORKDIR}" || die
-		unpack glibc-${RELEASE_VER}-patches-${PATCH_VER}.tar.xz
-	fi
-
-	cd "${WORKDIR}" || die
-	unpack locale-gen-${LOCALE_GEN_VER}.tar.gz
-	use systemd && unpack glibc-systemd-${GLIBC_SYSTEMD_VER}.tar.gz
-}
-
-src_prepare() {
-	local patchsetname
-	if ! use vanilla ; then
-		if [[ ${PV} == 9999* ]] ; then
-			patchsetname="from git master"
-		else
-			patchsetname="${RELEASE_VER}-${PATCH_VER}"
-		fi
-		einfo "Applying Gentoo Glibc Patchset ${patchsetname}"
-		eapply "${WORKDIR}"/patches
-		einfo "Done."
-	fi
-
-	if use clone3 ; then
-		append-cppflags -DGENTOO_USE_CLONE3
-	else
-		# See e.g. bug #827386, bug #819045.
-		elog "Disabling the clone3 syscall for compatibility with older Electron apps."
-		elog "Please re-enable this flag before filing bugs!"
-	fi
-
-	default
-
-	gnuconfig_update
-
-	cd "${WORKDIR}"
-	find . -name configure -exec touch {} +
-
-	# move the external locale-gen to its old place
-	mkdir extra || die
-	mv locale-gen-${LOCALE_GEN_VER} extra/locale || die
-
-	eprefixify extra/locale/locale-gen
-
-	# Fix permissions on some of the scripts.
-	chmod u+x "${S}"/scripts/*.sh
-
-	cd "${S}"
-}
-
-glibc_do_configure() {
-
-	local v
-	for v in ABI CBUILD CHOST CTARGET CBUILD_OPT CTARGET_OPT CC CXX LD {AS,C,CPP,CXX,LD}FLAGS MAKEINFO NM AR AS STRIP RANLIB OBJCOPY STRINGS OBJDUMP READELF; do
-		einfo " $(printf '%15s' ${v}:)   ${!v}"
-	done
-
-	echo
-	local myconf=()
-
-	case ${CTARGET} in
-		m68k*)
-			# setjmp() is not compatible with stack protection:
-			# https://sourceware.org/PR24202
-			myconf+=( --enable-stack-protector=no )
-			;;
-		*)
-			# Use '=strong' instead of '=all' to protect only functions
-			# worth protecting from stack smashes.
-			# '=all' is also known to have a problem in IFUNC resolution
-			# tests: https://sourceware.org/PR25680, bug #712356.
-			myconf+=( --enable-stack-protector=$(usex ssp strong no) )
-			;;
-	esac
-	myconf+=( --enable-stackguard-randomization )
-
-	# Keep a whitelist of targets supporing IFUNC. glibc's ./configure
-	# is not robust enough to detect proper support:
-	#    https://bugs.gentoo.org/641216
-	#    https://sourceware.org/PR22634#c0
-	case $(tc-arch ${CTARGET}) in
-		# Keep whitelist of targets where autodetection mostly works.
-		amd64|x86|sparc|ppc|ppc64|arm|arm64|s390) ;;
-		# Blacklist everywhere else
-		*) myconf+=( libc_cv_ld_gnu_indirect_function=no ) ;;
-	esac
-
-	# Enable Intel Control-flow Enforcement Technology on amd64 if requested
-	case ${CTARGET} in
-		x86_64-*) myconf+=( $(use_enable cet) ) ;;
-		*) ;;
-	esac
-
-	[[ $(tc-is-softfloat) == "yes" ]] && myconf+=( --without-fp )
-
-	myconf+=( --enable-kernel=${MIN_KERN_VER} )
-
-	# Since SELinux support is only required for nscd, only enable it if:
-	# 1. USE selinux
-	# 2. only for the primary ABI on multilib systems
-	# 3. Not a crosscompile
-	if ! is_crosscompile && use selinux ; then
-		if use multilib ; then
-			if is_final_abi ; then
-				myconf+=( --with-selinux )
-			else
-				myconf+=( --without-selinux )
-			fi
-		else
-			myconf+=( --with-selinux )
-		fi
-	else
-		myconf+=( --without-selinux )
-	fi
-
-	# Force a few tests where we always know the answer but
-	# configure is incapable of finding it.
-	if is_crosscompile ; then
-		export \
-			libc_cv_c_cleanup=yes \
-			libc_cv_forced_unwind=yes
-	fi
-
-	myconf+=(
-		--without-cvs
-		--disable-werror
-		--enable-bind-now
-		--build=${CBUILD_OPT:-${CBUILD}}
-		--host=${CTARGET_OPT:-${CTARGET}}
-		$(use_enable profile)
-		$(use_with gd)
-		--with-headers=$(build_eprefix)$(alt_build_headers)
-		--prefix="$(host_eprefix)/usr"
-		--sysconfdir="$(host_eprefix)/etc"
-		--localstatedir="$(host_eprefix)/var"
-		--libdir='$(prefix)'/$(get_libdir)
-		--mandir='$(prefix)'/share/man
-		--infodir='$(prefix)'/share/info
-		--libexecdir='$(libdir)'/misc/glibc
-		--with-bugurl=https://bugs.gentoo.org/
-		--with-pkgversion="$(glibc_banner)"
-		$(use_enable crypt)
-		$(use_multiarch || echo --disable-multi-arch)
-		$(use_enable static-pie)
-		$(use_enable systemtap)
-		$(use_enable nscd)
-
-		# locale data is arch-independent
-		# https://bugs.gentoo.org/753740
-		libc_cv_complocaledir='${exec_prefix}/lib/locale'
-
-		# -march= option tricks build system to infer too
-		# high ISA level: https://sourceware.org/PR27318
-		libc_cv_include_x86_isa_level=no
-		# Explicit override of https://sourceware.org/PR27991
-		# exposes a bug in glibc's configure:
-		# https://sourceware.org/PR27991
-		libc_cv_have_x86_lahf_sahf=no
-		libc_cv_have_x86_movbe=no
-
-		${EXTRA_ECONF}
-	)
-
-	# We rely on sys-libs/timezone-data for timezone tools normally.
-	myconf+=( $(use_enable vanilla timezone-tools) )
-
-	# These libs don't have configure flags.
-	ac_cv_lib_audit_audit_log_user_avc_message=$(usex audit || echo no)
-	ac_cv_lib_cap_cap_init=$(usex caps || echo no)
-
-	# There is no configure option for this and we need to export it
-	# since the glibc build will re-run configure on itself
-	export libc_cv_rootsbindir="$(host_eprefix)/sbin"
-	export libc_cv_slibdir="$(host_eprefix)/$(get_libdir)"
-
-	# We take care of patching our binutils to use both hash styles,
-	# and many people like to force gnu hash style only, so disable
-	# this overriding check.  #347761
-	export libc_cv_hashstyle=no
-
-	local builddir=$(builddir nptl)
-	mkdir -p "${builddir}"
-	cd "${builddir}"
-	set -- "${S}"/configure "${myconf[@]}"
-	echo "$@"
-	"$@" || die "failed to configure glibc"
-
-	# ia64 static cross-compilers are a pita in so much that they
-	# can't produce static ELFs (as the libgcc.a is broken).  so
-	# disable building of the programs for those targets if it
-	# doesn't work.
-	# XXX: We could turn this into a compiler test, but ia64 is
-	# the only one that matters, so this should be fine for now.
-	if is_crosscompile && [[ ${CTARGET} == ia64* ]] ; then
-		sed -i '1i+link-static = touch $@' config.make
-	fi
-
-	# If we're trying to migrate between ABI sets, we need
-	# to lie and use a local copy of gcc.  Like if the system
-	# is built with MULTILIB_ABIS="amd64 x86" but we want to
-	# add x32 to it, gcc/glibc don't yet support x32.
-	#
-	if [[ -n ${GCC_BOOTSTRAP_VER} ]] && use multilib-bootstrap ; then
-		echo 'main(){}' > "${T}"/test.c
-		if ! $(tc-getCC ${CTARGET}) ${CFLAGS} ${LDFLAGS} "${T}"/test.c -Wl,-emain -lgcc 2>/dev/null ; then
-			sed -i -e '/^CC = /s:$: -B$(objdir)/../'"gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}/${ABI}:" config.make || die
-		fi
-	fi
-}
-
-glibc_headers_configure() {
-	export ABI=default
-
-	local builddir=$(builddir "headers")
-	mkdir -p "${builddir}"
-	cd "${builddir}"
-
-	# if we don't have a compiler yet, we can't really test it now ...
-	# hopefully they don't affect header generation, so let's hope for
-	# the best here ...
-	local v vars=(
-		ac_cv_header_cpuid_h=yes
-		libc_cv_{386,390,alpha,arm,hppa,ia64,mips,{powerpc,sparc}{,32,64},sh,x86_64}_tls=yes
-		libc_cv_asm_cfi_directives=yes
-		libc_cv_broken_visibility_attribute=no
-		libc_cv_c_cleanup=yes
-		libc_cv_compiler_powerpc64le_binary128_ok=yes
-		libc_cv_forced_unwind=yes
-		libc_cv_gcc___thread=yes
-		libc_cv_mlong_double_128=yes
-		libc_cv_mlong_double_128ibm=yes
-		libc_cv_ppc_machine=yes
-		libc_cv_ppc_rel16=yes
-		libc_cv_predef_fortify_source=no
-		libc_cv_target_power8_ok=yes
-		libc_cv_visibility_attribute=yes
-		libc_cv_z_combreloc=yes
-		libc_cv_z_execstack=yes
-		libc_cv_z_initfirst=yes
-		libc_cv_z_nodelete=yes
-		libc_cv_z_nodlopen=yes
-		libc_cv_z_relro=yes
-		libc_mips_abi=${ABI}
-		libc_mips_float=$([[ $(tc-is-softfloat) == "yes" ]] && echo soft || echo hard)
-		# These libs don't have configure flags.
-		ac_cv_lib_audit_audit_log_user_avc_message=no
-		ac_cv_lib_cap_cap_init=no
-	)
-
-	einfo "Forcing cached settings:"
-	for v in "${vars[@]}" ; do
-		einfo " ${v}"
-		export ${v}
-	done
-
-	local headers_only_arch_CPPFLAGS=()
-
-	# Blow away some random CC settings that screw things up. #550192
-	if [[ -d ${S}/sysdeps/mips ]]; then
-		pushd "${S}"/sysdeps/mips >/dev/null
-		sed -i -e '/^CC +=/s:=.*:= -D_MIPS_SZPTR=32:' mips32/Makefile mips64/n32/Makefile || die
-		sed -i -e '/^CC +=/s:=.*:= -D_MIPS_SZPTR=64:' mips64/n64/Makefile || die
-
-		# Force the mips ABI to the default.  This is OK because the set of
-		# installed headers in this phase is the same between the 3 ABIs.
-		# If this ever changes, this hack will break, but that's unlikely
-		# as glibc discourages that behavior.
-		# https://crbug.com/647033
-		sed -i -e 's:abiflag=.*:abiflag=_ABIO32:' preconfigure || die
-
-		popd >/dev/null
-	fi
-
-	case ${CTARGET} in
-	riscv*)
-		# RISC-V interrogates the compiler to determine which target to
-		# build.  If building the headers then we don't strictly need a
-		# RISC-V compiler, so the built-in definitions that are provided
-		# along with all RISC-V compiler might not exist.  This causes
-		# glibc's RISC-V preconfigure script to blow up.  Since we're just
-		# building the headers any value will actually work here, so just
-		# pick the standard one (rv64g/lp64d) to make the build scripts
-		# happy for now -- the headers are all the same anyway so it
-		# doesn't matter.
-		headers_only_arch_CPPFLAGS+=(
-			-D__riscv_xlen=64
-			-D__riscv_flen=64
-			-D__riscv_float_abi_double=1
-			-D__riscv_atomic=1
-		) ;;
-	esac
-
-	local myconf=()
-	myconf+=(
-		--disable-sanity-checks
-		--enable-hacker-mode
-		--without-cvs
-		--disable-werror
-		--enable-bind-now
-		--build=${CBUILD_OPT:-${CBUILD}}
-		--host=${CTARGET_OPT:-${CTARGET}}
-		--with-headers=$(build_eprefix)$(alt_build_headers)
-		--prefix="$(host_eprefix)/usr"
-		${EXTRA_ECONF}
-	)
-
-	# Nothing is compiled here which would affect the headers for the target.
-	# So forcing CC/CFLAGS is sane.
-	local headers_only_CC=$(tc-getBUILD_CC)
-	local headers_only_CFLAGS="-O1 -pipe"
-	local headers_only_CPPFLAGS="-U_FORTIFY_SOURCE ${headers_only_arch_CPPFLAGS[*]}"
-	local headers_only_LDFLAGS=""
-	set -- "${S}"/configure "${myconf[@]}"
-	echo \
-		"CC=${headers_only_CC}" \
-		"CFLAGS=${headers_only_CFLAGS}" \
-		"CPPFLAGS=${headers_only_CPPFLAGS}" \
-		"LDFLAGS=${headers_only_LDFLAGS}" \
-		"$@"
-	CC=${headers_only_CC} \
-	CFLAGS=${headers_only_CFLAGS} \
-	CPPFLAGS=${headers_only_CPPFLAGS} \
-	LDFLAGS="" \
-	"$@" || die "failed to configure glibc"
-}
-
-do_src_configure() {
-	if just_headers ; then
-		glibc_headers_configure
-	else
-		glibc_do_configure nptl
-	fi
-}
-
-src_configure() {
-	foreach_abi do_src_configure
-}
-
-do_src_compile() {
-	emake -C "$(builddir nptl)"
-}
-
-src_compile() {
-	if just_headers ; then
-		return
-	fi
-
-	foreach_abi do_src_compile
-}
-
-glibc_src_test() {
-	cd "$(builddir nptl)"
-
-	local myxfailparams=""
-	if [[ "${GENTOO_GLIBC_XFAIL_TESTS}" == "yes" ]] ; then
-		for myt in ${XFAIL_TEST_LIST[@]} ; do
-			myxfailparams+="test-xfail-${myt}=yes "
-		done
-	fi
-
-	# sandbox does not understand unshare() and prevents
-	# writes to /proc/, which makes many tests fail
-
-	SANDBOX_ON=0 LD_PRELOAD= emake ${myxfailparams} check
-}
-
-do_src_test() {
-	local ret=0
-
-	glibc_src_test
-	: $(( ret |= $? ))
-
-	return ${ret}
-}
-
-src_test() {
-	if just_headers ; then
-		return
-	fi
-
-	# Give tests more time to complete.
-	export TIMEOUTFACTOR=5
-
-	foreach_abi do_src_test || die "tests failed"
-}
-
-run_locale_gen() {
-	# if the host locales.gen contains no entries, we'll install everything
-	local root="$1"
-	local inplace=""
-
-	if [[ "${root}" == "--inplace-glibc" ]] ; then
-		inplace="--inplace-glibc"
-		root="$2"
-	fi
-
-	local locale_list="${root%/}/etc/locale.gen"
-
-	pushd "${ED}"/$(get_libdir) >/dev/null
-
-	if [[ -z $(locale-gen --list --config "${locale_list}") ]] ; then
-		[[ -z ${inplace} ]] && ewarn "Generating all locales; edit /etc/locale.gen to save time/space"
-		locale_list="${root%/}/usr/share/i18n/SUPPORTED"
-	fi
-
-	set -- locale-gen ${inplace} --jobs $(makeopts_jobs) --config "${locale_list}" \
-		--destdir "${root}"
-	echo "$@"
-	"$@"
-
-	popd >/dev/null
-}
-
-glibc_do_src_install() {
-	local builddir=$(builddir nptl)
-	cd "${builddir}"
-
-	emake install_root="${D}/$(build_eprefix)$(alt_prefix)" install
-
-	# This version (2.26) provides some compatibility libraries for the NIS/NIS+ support
-	# which come without headers etc. Only needed for binary packages since the
-	# external net-libs/libnsl has increased soversion. Keep only versioned libraries.
-	find "${D}" -name "libnsl.a" -delete
-	find "${D}" -name "libnsl.so" -delete
-
-	# Normally upstream_pv is ${PV}. Live ebuilds are exception, there we need
-	# to infer upstream version:
-	# '#define VERSION "2.26.90"' -> '2.26.90'
-	local upstream_pv=$(sed -n -r 's/#define VERSION "(.*)"/\1/p' "${S}"/version.h)
-
-	# Avoid stripping binaries not targeted by ${CHOST}. Or else
-	# ${CHOST}-strip would break binaries build for ${CTARGET}.
-	is_crosscompile && dostrip -x /
-	# gdb thread introspection relies on local libpthreas symbols. stripping breaks it
-	# See Note [Disable automatic stripping]
-	dostrip -x $(alt_libdir)/libpthread-${upstream_pv}.so
-
-	if [[ -e ${ED}/$(alt_usrlibdir)/libm-${upstream_pv}.a ]] ; then
-		# Move versioned .a file out of libdir to evade portage QA checks
-		# instead of using gen_usr_ldscript(). We fix ldscript as:
-		# "GROUP ( /usr/lib64/libm-<pv>.a ..." -> "GROUP ( /usr/lib64/glibc-<pv>/libm-<pv>.a ..."
-		sed -i "s@\(libm-${upstream_pv}.a\)@${P}/\1@" "${ED}"/$(alt_usrlibdir)/libm.a || die
-		dodir $(alt_usrlibdir)/${P}
-		mv "${ED}"/$(alt_usrlibdir)/libm-${upstream_pv}.a "${ED}"/$(alt_usrlibdir)/${P}/libm-${upstream_pv}.a || die
-	fi
-
-	# We'll take care of the cache ourselves
-	rm -f "${ED}"/etc/ld.so.cache
-
-	# Everything past this point just needs to be done once ...
-	is_final_abi || return 0
-
-	# Make sure the non-native interp can be found on multilib systems even
-	# if the main library set isn't installed into the right place.  Maybe
-	# we should query the active gcc for info instead of hardcoding it ?
-	local i ldso_abi ldso_name
-	local ldso_abi_list=(
-		# x86
-		amd64   /lib64/ld-linux-x86-64.so.2
-		x32     /libx32/ld-linux-x32.so.2
-		x86     /lib/ld-linux.so.2
-		# mips
-		o32     /lib/ld.so.1
-		n32     /lib32/ld.so.1
-		n64     /lib64/ld.so.1
-		# powerpc
-		ppc     /lib/ld.so.1
-		# riscv
-		ilp32d  /lib/ld-linux-riscv32-ilp32d.so.1
-		ilp32   /lib/ld-linux-riscv32-ilp32.so.1
-		lp64d   /lib/ld-linux-riscv64-lp64d.so.1
-		lp64    /lib/ld-linux-riscv64-lp64.so.1
-		# s390
-		s390    /lib/ld.so.1
-		s390x   /lib/ld64.so.1
-		# sparc
-		sparc32 /lib/ld-linux.so.2
-		sparc64 /lib64/ld-linux.so.2
-	)
-	case $(tc-endian) in
-	little)
-		ldso_abi_list+=(
-			# arm
-			arm64   /lib/ld-linux-aarch64.so.1
-			# ELFv2 (glibc does not support ELFv1 on LE)
-			ppc64   /lib64/ld64.so.2
-		)
-		;;
-	big)
-		ldso_abi_list+=(
-			# arm
-			arm64   /lib/ld-linux-aarch64_be.so.1
-			# ELFv1 (glibc does not support ELFv2 on BE)
-			ppc64   /lib64/ld64.so.1
-		)
-		;;
-	esac
-	if [[ ${SYMLINK_LIB} == "yes" ]] && [[ ! -e ${ED}/$(alt_prefix)/lib ]] ; then
-		dosym $(get_abi_LIBDIR ${DEFAULT_ABI}) $(alt_prefix)/lib
-	fi
-	for (( i = 0; i < ${#ldso_abi_list[@]}; i += 2 )) ; do
-		ldso_abi=${ldso_abi_list[i]}
-		has ${ldso_abi} $(get_install_abis) || continue
-
-		ldso_name="$(alt_prefix)${ldso_abi_list[i+1]}"
-		if [[ ! -L ${ED}/${ldso_name} && ! -e ${ED}/${ldso_name} ]] ; then
-			dosym ../$(get_abi_LIBDIR ${ldso_abi})/${ldso_name##*/} ${ldso_name}
-		fi
-	done
-
-	# In the LSB 5.0 definition, someone had the excellent idea to "standardize"
-	# the runtime loader name, see also https://xkcd.com/927/
-	# Normally, in Gentoo one should never come across executables that require this.
-	# However, binary commercial packages are known to adhere to weird practices.
-	# https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-AMD64/LSB-Core-AMD64.html#BASELIB
-	local lsb_ldso_name native_ldso_name lsb_ldso_abi
-	local lsb_ldso_abi_list=(
-		# x86
-		amd64	ld-linux-x86-64.so.2	ld-lsb-x86-64.so.3
-	)
-	for (( i = 0; i < ${#lsb_ldso_abi_list[@]}; i += 3 )) ; do
-		lsb_ldso_abi=${lsb_ldso_abi_list[i]}
-		native_ldso_name=${lsb_ldso_abi_list[i+1]}
-		lsb_ldso_name=${lsb_ldso_abi_list[i+2]}
-		has ${lsb_ldso_abi} $(get_install_abis) || continue
-
-		if [[ ! -L ${ED}/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_ldso_name} && ! -e ${ED}/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_ldso_name} ]] ; then
-			dosym ${native_ldso_name} "$(alt_prefix)/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_ldso_name}"
-		fi
-	done
-
-	# With devpts under Linux mounted properly, we do not need the pt_chown
-	# binary to be setuid.  This is because the default owners/perms will be
-	# exactly what we want.
-	if ! use suid ; then
-		find "${ED}" -name pt_chown -exec chmod -s {} +
-	fi
-
-	#################################################################
-	# EVERYTHING AFTER THIS POINT IS FOR NATIVE GLIBC INSTALLS ONLY #
-	# Make sure we install some symlink hacks 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
-		# We need to make sure that /lib and /usr/lib always exists.
-		# gcc likes to use relative paths to get to its multilibs like
-		# /usr/lib/../lib64/.  So while we don't install any files into
-		# /usr/lib/, we do need it to exist.
-		keepdir $(alt_prefix)/lib
-		keepdir $(alt_prefix)/usr/lib
-
-		dosym usr/include $(alt_prefix)/sys-include
-		return 0
-	fi
-
-	# Files for Debian-style locale updating
-	dodir /usr/share/i18n
-	sed \
-		-e "/^#/d" \
-		-e "/SUPPORTED-LOCALES=/d" \
-		-e "s: \\\\::g" -e "s:/: :g" \
-		"${S}"/localedata/SUPPORTED > "${ED}"/usr/share/i18n/SUPPORTED \
-		|| die "generating /usr/share/i18n/SUPPORTED failed"
-	cd "${WORKDIR}"/extra/locale
-	dosbin locale-gen
-	doman *.[0-8]
-	insinto /etc
-	doins locale.gen
-
-	keepdir /usr/lib/locale
-
-	cd "${S}"
-
-	# Install misc network config files
-	insinto /etc
-	doins posix/gai.conf
-
-	if use systemd ; then
-		doins "${WORKDIR}/glibc-systemd-${GLIBC_SYSTEMD_VER}/gentoo-config/nsswitch.conf"
-	else
-		doins nss/nsswitch.conf
-	fi
-
-	# Gentoo-specific
-	newins "${FILESDIR}"/host.conf-1 host.conf
-
-	if use nscd ; then
-		doins nscd/nscd.conf
-
-		newinitd "$(prefixify_ro "${FILESDIR}"/nscd-1)" nscd
-
-		local nscd_args=(
-			-e "s:@PIDFILE@:$(strings "${ED}"/usr/sbin/nscd | grep nscd.pid):"
-		)
-
-		sed -i "${nscd_args[@]}" "${ED}"/etc/init.d/nscd
-
-		use systemd && systemd_dounit nscd/nscd.service
-		newtmpfiles nscd/nscd.tmpfiles nscd.conf
-	fi
-
-	echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00glibc
-	doenvd "${T}"/00glibc
-
-	for d in BUGS ChangeLog CONFORMANCE FAQ NEWS NOTES PROJECTS README* ; do
-		[[ -s ${d} ]] && dodoc ${d}
-	done
-	dodoc -r ChangeLog.old
-
-	# Prevent overwriting of the /etc/localtime symlink.  We'll handle the
-	# creation of the "factory" symlink in pkg_postinst().
-	rm -f "${ED}"/etc/localtime
-
-	# Generate all locales if this is a native build as locale generation
-	if use compile-locales && ! is_crosscompile ; then
-		run_locale_gen --inplace-glibc "${ED}/"
-		sed -e 's:COMPILED_LOCALES="":COMPILED_LOCALES="1":' -i "${ED}"/usr/sbin/locale-gen || die
-	fi
-}
-
-glibc_headers_install() {
-	local builddir=$(builddir "headers")
-	cd "${builddir}"
-	emake install_root="${D}/$(build_eprefix)$(alt_prefix)" install-headers
-
-	insinto $(alt_headers)/gnu
-	doins "${S}"/include/gnu/stubs.h
-
-	# 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
-	dosym usr/include $(alt_prefix)/sys-include
-}
-
-src_install() {
-	if just_headers ; then
-		export ABI=default
-		glibc_headers_install
-		return
-	fi
-
-	foreach_abi glibc_do_src_install
-
-	if ! use static-libs ; then
-		einfo "Not installing static glibc libraries"
-		find "${ED}" -name "*.a" -and -not -name "*_nonshared.a" -delete
-	fi
-}
-
-# Simple test to make sure our new glibc isn't completely broken.
-# Make sure we don't test with statically built binaries since
-# they will fail.  Also, skip if this glibc is a cross compiler.
-#
-# If coreutils is built with USE=multicall, some of these files
-# will just be wrapper scripts, not actual ELFs we can test.
-glibc_sanity_check() {
-	cd / #228809
-
-	# We enter ${ED} so to avoid trouble if the path contains
-	# special characters; for instance if the path contains the
-	# colon character (:), then the linker will try to split it
-	# and look for the libraries in an unexpected place. This can
-	# lead to unsafe code execution if the generated prefix is
-	# within a world-writable directory.
-	# (e.g. /var/tmp/portage:${HOSTNAME})
-	pushd "${ED}"/$(get_libdir) >/dev/null
-
-	# first let's find the actual dynamic linker here
-	# symlinks may point to the wrong abi
-	local newldso=$(find . -maxdepth 1 -name 'ld*so.?' -type f -print -quit)
-
-	einfo Last-minute run tests with ${newldso} in /$(get_libdir) ...
-
-	local x striptest
-	for x in cal date env free ls true uname uptime ; do
-		x=$(type -p ${x})
-		[[ -z ${x} || ${x} != ${EPREFIX}/* ]] && continue
-		striptest=$(LC_ALL="C" file -L ${x} 2>/dev/null) || continue
-		case ${striptest} in
-		*"statically linked"*) continue;;
-		*"ASCII text"*) continue;;
-		esac
-		# We need to clear the locale settings as the upgrade might want
-		# incompatible locale data.  This test is not for verifying that.
-		LC_ALL=C \
-		${newldso} --library-path . ${x} > /dev/null \
-			|| die "simple run test (${x}) failed"
-	done
-
-	popd >/dev/null
-}
-
-pkg_preinst() {
-	# nothing to do if just installing headers
-	just_headers && return
-
-	# prepare /etc/ld.so.conf.d/ for files
-	mkdir -p "${EROOT}"/etc/ld.so.conf.d
-
-	# Default /etc/hosts.conf:multi to on for systems with small dbs.
-	if [[ $(wc -l < "${EROOT}"/etc/hosts) -lt 1000 ]] ; then
-		sed -i '/^multi off/s:off:on:' "${ED}"/etc/host.conf
-		einfo "Defaulting /etc/host.conf:multi to on"
-	fi
-
-	[[ -n ${ROOT} ]] && return 0
-	[[ -d ${ED}/$(get_libdir) ]] || return 0
-	[[ -z ${BOOTSTRAP_RAP} ]] && glibc_sanity_check
-
-	if [[ -L ${EROOT}/usr/lib/locale ]]; then
-		# Help portage migrate this to a directory
-		# https://bugs.gentoo.org/753740
-		rm "${EROOT}"/usr/lib/locale || die
-	fi
-
-	# Keep around libcrypt so that Perl doesn't break when merging libxcrypt
-	# (libxcrypt is the new provider for now of libcrypt.so.{1,2}).
-	# bug #802207
-	if ! use crypt && has_version "${CATEGORY}/${PN}[crypt]" && ! has preserve-libs ${FEATURES}; then
-		PRESERVED_OLD_LIBCRYPT=1
-		cp -p "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1)" "${T}/libcrypt$(get_libname 1)" || die
-	else
-		PRESERVED_OLD_LIBCRYPT=0
-	fi
-}
-
-pkg_postinst() {
-	# nothing to do if just installing headers
-	just_headers && return
-
-	if ! tc-is-cross-compiler && [[ -x ${EROOT}/usr/sbin/iconvconfig ]] ; then
-		# Generate fastloading iconv module configuration file.
-		"${EROOT}"/usr/sbin/iconvconfig --prefix="${ROOT}/"
-	fi
-
-	if ! is_crosscompile && [[ -z ${ROOT} ]] ; then
-		use compile-locales || run_locale_gen "${EROOT}/"
-	fi
-
-	upgrade_warning
-
-	# Check for sanity of /etc/nsswitch.conf, take 2
-	if [[ -e ${EROOT}/etc/nsswitch.conf ]] && ! has_version sys-auth/libnss-nis ; then
-		local entry
-		for entry in passwd group shadow; do
-			if egrep -q "^[ \t]*${entry}:.*nis" "${EROOT}"/etc/nsswitch.conf; then
-				ewarn ""
-				ewarn "Your ${EROOT}/etc/nsswitch.conf uses NIS. Support for that has been"
-				ewarn "removed from glibc and is now provided by the package"
-				ewarn "  sys-auth/libnss-nis"
-				ewarn "Install it now to keep your NIS setup working."
-				ewarn ""
-			fi
-		done
-	fi
-
-	if [[ ${PRESERVED_OLD_LIBCRYPT} -eq 1 ]] ; then
-		cp -p "${T}/libcrypt$(get_libname 1)" "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1)" || die
-		preserve_old_lib_notify /$(get_libdir)/libcrypt$(get_libname 1)
-
-		elog "Please ignore a possible later error message about a file collision involving"
-		elog "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1). We need to preserve this file for the moment to keep"
-		elog "the upgrade working, but it also needs to be overwritten when"
-		elog "sys-libs/libxcrypt is installed. See bug 802210 for more details."
-	fi
-}