portage: adding gentoo fork to more easily test some custom patches for better build speed. DO NOT ENABLE THEM unless danger is your middle name

2026-04-18 12:51:02 +02:00 · 2013-07-11 17:51:18 +00:00 · 2013-07-11 17:51:18 +00:00 · 9fbcea0c63
commit 9fbcea0c63
parent ee0c6c9c07
5 changed files with 484 additions and 0 deletions
--- a/sys-apps/portage/Manifest
+++ b/sys-apps/portage/Manifest
@ -0,0 +1,6 @@
+AUX README.RESCUE 137 SHA256 69bea0c755eab59b6b4d90838b8551744f0b0c8eeac170b1cd13a71ee83f9ac4 SHA512 dba0f0d6d4cd140e636cc70dfb7bdb298e2f2fb040bc07b0874cac994bdbabd26bfd9361d85a0f8b9a92a185281e4901606b9e4f563afdc8867341bbe6af1cb0 WHIRLPOOL 713fcc790442999d56e13efaf536fec9954dadeda680b3642d0358311332096ddedf8b55697bd1ca620d84f0dc7d025ff7931e086c74c1f5032be72dca2ff8f5
+AUX no_fs_lock.patch 448 SHA256 6f8655af5b890f7bb1220f877cb4ee7225c48c9feef6a137d72a91f2a832f4ac SHA512 12dabc4addcc52287c89436e87ffa58b68893ed3a4e728f348466b7d6a38e3c9dd95b0e3f1ed2c456ea7134ec16d22c372260e2cdb9e3ac64157e2054564fc75 WHIRLPOOL 39998ff33ab7c4f5f46d0b8421a49a6098c3f35763fcd5bd2d5a0b0e0213dc15ebdf2462ec80c69ba49927d3efb105aa8e3b8ebfdaf304eb0d5529d187196e86
+AUX parallel_install_system.patch 1351 SHA256 a7a9f5f3dbcede67e7bdff1bb703f10d526161d94e2cf18848549260cf08de94 SHA512 79464f786f3dadc512d68487760a635b97849ad6873f3270ee5bbd0c8f60a2e2e726e20c1f843cb087706e1c542b4ae5547face5ca24dda406ec04c93a41ca1a WHIRLPOOL 9e9e5df7070d5d784a779da3d20d4d785acdaedbaf0cbc7a1b56c75d6700f4c3b2da500dc8dffd1c6a7c4d2f542ab2e242ead5ca655c81abb342d9a79c5191fd
+DIST portage-2.1.12.2.tar.bz2 868695 SHA256 700cf7118d60aa14a2d759887e50988a3e527e04fe980100f25cc69357ae2437 SHA512 53bfbcad9743b2613501191f4883d0b99d1e99ca6fdff550996121cb47c7b8333837d825f6174cb82f83cc16069ebe66a0aba0cc7b13f86a65a055d961e2c70b WHIRLPOOL 736dcc71a323d83c7fd75aa9f5c047b0fe234c66545a1744a2d69ca1b15af4d9bc60d9dfb2f9e76f1645e4d9c061f86bc56f4beac4e146b5cef970198b9010f6
+DIST portage-man-pl-2.1.2.tar.bz2 53893 SHA256 960eaa7c6f3a2af44bdc665266a8e884628a562373cc477d301597ecc5ef961f SHA512 5f5c8dd1559048546633b1e7291ff8c0f5d637595f1a4c98405424b08c30c089fc9359e0214f78fbe358754f20d327794f4692b9b67639585c29b755975ee853 WHIRLPOOL 756e267b84077501d976f46fa448cda5368cd52aeca6ec43d109c81fe8e2364e0cd0f35630d68a4186c70e3b440b7c870b86ac7ef83cc0afa43e10f9f8e1f422
+EBUILD portage-2.1.12.2.ebuild 14675 SHA256 4c816744bb536396a4dc217b3cba2ed5719c505e2942d366d4249e710c90c042 SHA512 244946b586ba2fe7089cbf75548be7d8b6520a4fe7b714d7ff69da2a8a22758da8588c1489a1a75ca54514b373a31cccd7efd0a8794acc8db8fadfc0b5c99809 WHIRLPOOL 6d9d987ce1a847376d27bd61fe2242305e44c237c484903c8ff07d911049a2f083b9ae3c1d436e8bc4c7ae0645a2cf7286387441eee39cf28a017c773fc4ed8e
--- a/sys-apps/portage/files/README.RESCUE
+++ b/sys-apps/portage/files/README.RESCUE
@ -0,0 +1,2 @@
+Please see http://www.gentoo.org/proj/en/portage/doc/manually-fixing-portage.xml
+for a recovery guide for a broken portage installation.
--- a/sys-apps/portage/files/no_fs_lock.patch
+++ b/sys-apps/portage/files/no_fs_lock.patch
@ -0,0 +1,16 @@
+diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
+index e1a4753..1c3a640 100644
+--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
+@@ -261,6 +261,11 @@ class vardbapi(dbapi):
+ 			self._fs_lock_obj = None
+ 		self._fs_lock_count -= 1
+ 
+	def _fs_lock(self):
+		pass
+	def _fs_unlock(self):
+		pass
+
+ 	def _bump_mtime(self, cpv):
+ 		"""
+ 		This is called before an after any modifications, so that consumers
--- a/sys-apps/portage/files/parallel_install_system.patch
+++ b/sys-apps/portage/files/parallel_install_system.patch
@ -0,0 +1,26 @@
+diff --git a/pym/_emerge/Scheduler.py b/pym/_emerge/Scheduler.py
+index 94d3d3f..e95d1c3 100644
+--- a/pym/_emerge/Scheduler.py
+++ b/pym/_emerge/Scheduler.py
+@@ -1306,7 +1306,8 @@ class Scheduler(PollScheduler):
+ 			self.curval += 1
+ 			merge = PackageMerge(merge=build)
+ 			self._running_tasks[id(merge)] = merge
+-			if not build.build_opts.buildpkgonly and \
+			if 'parallel-install-system' not in build.settings.features and \
+				not build.build_opts.buildpkgonly and \
+ 				build.pkg in self._deep_system_deps:
+ 				# Since dependencies on system packages are frequently
+ 				# unspecified, merge them only when no builds are executing.
+diff --git a/pym/portage/const.py b/pym/portage/const.py
+index 087c0e7..4a0fbb0 100644
+--- a/pym/portage/const.py
+++ b/pym/portage/const.py
+@@ -104,6 +104,7 @@ SUPPORTED_FEATURES       = frozenset([
+                            "metadata-transfer", "mirror", "multilib-strict", "news",
+                            "noauto", "noclean", "nodoc", "noinfo", "noman",
+                            "nostrip", "notitles", "parallel-fetch", "parallel-install",
+                           "parallel-install-system",
+                            "prelink-checksums", "preserve-libs",
+                            "protect-owned", "python-trace", "sandbox",
+                            "selinux", "sesandbox", "sfperms",
--- a/sys-apps/portage/portage-2.1.12.2.ebuild
+++ b/sys-apps/portage/portage-2.1.12.2.ebuild
@ -0,0 +1,434 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-apps/portage/portage-2.1.12.2.ebuild,v 1.14 2013/07/01 02:24:59 zmedico Exp $
+
+# Require EAPI 2 since we now require at least python-2.6 (for python 3
+# syntax support) which also requires EAPI 2.
+EAPI=2
+PYTHON_COMPAT=(
+	pypy1_9 pypy2_0
+	python3_1 python3_2 python3_3 python3_4
+	python2_6 python2_7
+)
+inherit eutils multilib
+
+DESCRIPTION="Portage is the package management and distribution system for Gentoo"
+HOMEPAGE="http://www.gentoo.org/proj/en/portage/index.xml"
+LICENSE="GPL-2"
+KEYWORDS="alpha amd64 arm hppa ia64 ~m68k ~mips ppc ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd"
+SLOT="0"
+IUSE="build doc epydoc +ipc linguas_pl linguas_ru pypy2_0 pentoo python2 python3 stupid_patches selinux xattr"
+
+for _pyimpl in ${PYTHON_COMPAT[@]} ; do
+	IUSE+=" python_targets_${_pyimpl}"
+done
+unset _pyimpl
+
+# Import of the io module in python-2.6 raises ImportError for the
+# thread module if threading is disabled.
+python_dep_ssl="python3? ( =dev-lang/python-3*[ssl] )
+	!pypy2_0? ( !python2? ( !python3? (
+		|| ( >=dev-lang/python-2.7[ssl] dev-lang/python:2.6[threads,ssl] )
+	) ) )
+	pypy2_0? ( !python2? ( !python3? ( dev-python/pypy:2.0[bzip2,ssl] ) ) )
+	python2? ( !python3? ( || ( dev-lang/python:2.7[ssl] dev-lang/python:2.6[ssl,threads] ) ) )"
+python_dep="${python_dep_ssl//\[ssl\]}"
+python_dep="${python_dep//,ssl}"
+python_dep="${python_dep//ssl,}"
+
+python_dep="${python_dep}
+	python_targets_pypy1_9? ( dev-python/pypy:1.9 )
+	python_targets_pypy2_0? ( dev-python/pypy:2.0 )
+	python_targets_python2_6? ( dev-lang/python:2.6 )
+	python_targets_python2_7? ( dev-lang/python:2.7 )
+	python_targets_python3_1? ( dev-lang/python:3.1 )
+	python_targets_python3_2? ( dev-lang/python:3.2 )
+	python_targets_python3_3? ( dev-lang/python:3.3 )
+	python_targets_python3_4? ( dev-lang/python:3.4 )
+"
+
+# The pysqlite blocker is for bug #282760.
+# make-3.82 is for bug #455858
+DEPEND="${python_dep}
+	>=sys-devel/make-3.82
+	>=sys-apps/sed-4.0.5 sys-devel/patch
+	doc? ( app-text/xmlto ~app-text/docbook-xml-dtd-4.4 )
+	epydoc? ( >=dev-python/epydoc-2.0 !<=dev-python/pysqlite-2.4.1 )"
+# Require sandbox-2.2 for bug #288863.
+# For xattr, we can spawn getfattr and setfattr from sys-apps/attr, but that's
+# quite slow, so it's not considered in the dependencies as an alternative to
+# to python-3.3 / pyxattr. Also, xattr support is only tested with Linux, so
+# for now, don't pull in xattr deps for other kernels.
+# For whirlpool hash, require python[ssl] or python-mhash (bug #425046).
+# For compgen, require bash[readline] (bug #445576).
+RDEPEND="${python_dep}
+	!build? ( >=sys-apps/sed-4.0.5
+		|| ( >=app-shells/bash-4.2_p37[readline] ( <app-shells/bash-4.2_p37 >=app-shells/bash-3.2_p17 ) )
+		>=app-admin/eselect-1.2
+		|| ( ${python_dep_ssl} dev-python/python-mhash )
+	)
+	elibc_FreeBSD? ( sys-freebsd/freebsd-bin )
+	elibc_glibc? ( >=sys-apps/sandbox-2.2 )
+	elibc_uclibc? ( >=sys-apps/sandbox-2.2 )
+	>=app-misc/pax-utils-0.1.17
+	xattr? ( kernel_linux? ( || ( >=dev-lang/python-3.3_pre20110902 dev-python/pyxattr ) ) )
+	selinux? ( || ( >=sys-libs/libselinux-2.0.94[python] <sys-libs/libselinux-2.0.94 ) )
+	!<app-shells/bash-3.2_p17
+	!<app-admin/logrotate-3.8.0"
+PDEPEND="
+	!build? (
+		>=net-misc/rsync-2.6.4
+		userland_GNU? ( >=sys-apps/coreutils-6.4 )
+	)"
+# coreutils-6.4 rdep is for date format in emerge-webrsync #164532
+# NOTE: FEATURES=installsources requires debugedit and rsync
+
+SRC_ARCHIVES="http://dev.gentoo.org/~zmedico/portage/archives"
+
+prefix_src_archives() {
+	local x y
+	for x in ${@}; do
+		for y in ${SRC_ARCHIVES}; do
+			echo ${y}/${x}
+		done
+	done
+}
+
+PV_PL="2.1.2"
+PATCHVER_PL=""
+TARBALL_PV=$PV
+SRC_URI="mirror://gentoo/${PN}-${TARBALL_PV}.tar.bz2
+	$(prefix_src_archives ${PN}-${TARBALL_PV}.tar.bz2)
+	linguas_pl? ( mirror://gentoo/${PN}-man-pl-${PV_PL}.tar.bz2
+		$(prefix_src_archives ${PN}-man-pl-${PV_PL}.tar.bz2) )"
+
+PATCHVER=
+[[ $TARBALL_PV = $PV ]] || PATCHVER=$PV
+if [ -n "${PATCHVER}" ]; then
+	SRC_URI="${SRC_URI} mirror://gentoo/${PN}-${PATCHVER}.patch.bz2
+	$(prefix_src_archives ${PN}-${PATCHVER}.patch.bz2)"
+fi
+
+S="${WORKDIR}"/${PN}-${TARBALL_PV}
+S_PL="${WORKDIR}"/${PN}-${PV_PL}
+
+compatible_python_is_selected() {
+	[[ $(/usr/bin/python -c 'import sys ; sys.stdout.write(sys.hexversion >= 0x2060000 and "good" or "bad")') = good ]]
+}
+
+current_python_has_xattr() {
+	[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
+	local PYTHON=/usr/bin/${EPYTHON}
+	[[ $("${PYTHON}" -c 'import sys ; sys.stdout.write(sys.hexversion >= 0x3030000 and "yes" or "no")') = yes ]] || \
+	"${PYTHON}" -c 'import xattr' 2>/dev/null
+}
+
+call_with_python_impl() {
+	[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
+	env EPYTHON=${EPYTHON} "$@"
+}
+
+get_python_interpreter() {
+	[ $# -eq 1 ] || die "expected 1 argument, got $#: $*"
+	local impl=$1 python
+	case "${impl}" in
+		python*)
+			python=${impl/_/.}
+			;;
+		pypy*)
+			python=${impl/_/.}
+			python=${python/pypy/pypy-c}
+			;;
+		*)
+			die "Unrecognized python target: ${impl}"
+	esac
+	echo ${python}
+}
+
+get_python_sitedir() {
+	[ $# -eq 1 ] || die "expected 1 argument, got $#: $*"
+	local impl=$1
+	local site_dir=/usr/$(get_libdir)/${impl/_/.}/site-packages
+	[[ -d ${ROOT}${site_dir} ]] || \
+		ewarn "site-packages dir missing for ${impl}: ${ROOT}${site_dir}"
+	echo "${site_dir}"
+}
+
+python_compileall() {
+	[[ ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).'
+	local d=$1 PYTHON=/usr/bin/${EPYTHON}
+	local d_image=${D}${d#/}
+	[[ -d ${d_image} ]] || die "directory does not exist: ${d_image}"
+	case "${EPYTHON}" in
+		python*)
+			"${PYTHON}" -m compileall -q -f -d "${d}" "${d_image}" || die
+			# Note: Using -OO breaks emaint, since it requires __doc__,
+			# and __doc__ is None when -OO is used.
+			"${PYTHON}" -O -m compileall -q -f -d "${d}" "${d_image}" || die
+			;;
+		pypy*)
+			"${PYTHON}" -m compileall -q -f -d "${d}" "${d_image}" || die
+			;;
+		*)
+			die "Unrecognized EPYTHON value: ${EPYTHON}"
+	esac
+}
+
+pkg_setup() {
+	if use python2 && use python3 ; then
+		ewarn "Both python2 and python3 USE flags are enabled, but only one"
+		ewarn "can be in the shebangs. Using python3."
+	fi
+	if use pypy2_0 && use python3 ; then
+		ewarn "Both pypy2_0 and python3 USE flags are enabled, but only one"
+		ewarn "can be in the shebangs. Using python3."
+	fi
+	if use pypy2_0 && use python2 ; then
+		ewarn "Both pypy2_0 and python2 USE flags are enabled, but only one"
+		ewarn "can be in the shebangs. Using python2"
+	fi
+	if ! use pypy2_0 && ! use python2 && ! use python3 && \
+		! compatible_python_is_selected ; then
+		ewarn "Attempting to select a compatible default python interpreter"
+		local x success=0
+		for x in /usr/bin/python2.* ; do
+			x=${x#/usr/bin/python2.}
+			if [[ $x -ge 6 ]] 2>/dev/null ; then
+				eselect python set python2.$x
+				if compatible_python_is_selected ; then
+					elog "Default python interpreter is now set to python-2.$x"
+					success=1
+					break
+				fi
+			fi
+		done
+		if [ $success != 1 ] ; then
+			eerror "Unable to select a compatible default python interpreter!"
+			die "This version of portage requires at least python-2.6 to be selected as the default python interpreter (see \`eselect python --help\`)."
+		fi
+	fi
+
+	# We use EPYTHON to designate the active python interpreter,
+	# but we only export when needed, via call_with_python_impl.
+	EPYTHON=python
+	export -n EPYTHON
+	if use python3; then
+		EPYTHON=python3
+	elif use python2; then
+		EPYTHON=python2
+	elif use pypy2_0; then
+		EPYTHON=pypy-c2.0
+	fi
+}
+
+src_prepare() {
+	if [ -n "${PATCHVER}" ] ; then
+		if [[ -L $S/bin/ebuild-helpers/portageq ]] ; then
+			rm "$S/bin/ebuild-helpers/portageq" \
+				|| die "failed to remove portageq helper symlink"
+		fi
+		epatch "${WORKDIR}/${PN}-${PATCHVER}.patch"
+	fi
+	einfo "Setting portage.VERSION to ${PVR} ..."
+	sed -e "s/^VERSION=.*/VERSION=\"${PVR}\"/" -i pym/portage/__init__.py || \
+		die "Failed to patch portage.VERSION"
+	sed -e "1s/VERSION/${PVR}/" -i doc/fragment/version || \
+		die "Failed to patch VERSION in doc/fragment/version"
+	sed -e "1s/VERSION/${PVR}/" -i $(find man -type f) || \
+		die "Failed to patch VERSION in man page headers"
+
+	if ! use ipc ; then
+		einfo "Disabling ipc..."
+		sed -e "s:_enable_ipc_daemon = True:_enable_ipc_daemon = False:" \
+			-i pym/_emerge/AbstractEbuildProcess.py || \
+			die "failed to patch AbstractEbuildProcess.py"
+	fi
+
+	if use xattr && use kernel_linux ; then
+		einfo "Adding FEATURES=xattr to make.globals ..."
+		echo -e '\nFEATURES="${FEATURES} xattr"' >> cnf/make.globals \
+			|| die "failed to append to make.globals"
+	fi
+
+	local set_shebang=
+	if use python3; then
+		set_shebang=python3
+	elif use python2; then
+		set_shebang=python2
+	elif use pypy2_0; then
+		set_shebang=pypy-c2.0
+	fi
+	if [[ -n ${set_shebang} ]] ; then
+		einfo "Converting shebangs for ${set_shebang}..."
+		while read -r -d $'\0' ; do
+			local shebang=$(head -n1 "$REPLY")
+			if [[ ${shebang} == "#!/usr/bin/python"* ]] ; then
+				sed -i -e "1s:python:${set_shebang}:" "$REPLY" || \
+					die "sed failed"
+			fi
+		done < <(find . -type f -print0)
+	fi
+
+	cd "${S}/cnf" || die
+	if [ -f "make.conf.${ARCH}".diff ]; then
+		patch make.conf "make.conf.${ARCH}".diff || \
+			die "Failed to patch make.conf.example"
+	else
+		eerror ""
+		eerror "Portage does not have an arch-specific configuration for this arch."
+		eerror "Please notify the arch maintainer about this issue. Using generic."
+		eerror ""
+	fi
+}
+
+src_compile() {
+	if use doc; then
+		call_with_python_impl \
+		emake docbook || die
+	fi
+
+	if use epydoc; then
+		einfo "Generating api docs"
+		call_with_python_impl \
+		emake epydoc || die
+	fi
+}
+
+src_test() {
+	call_with_python_impl \
+	emake test || die
+}
+
+src_install() {
+	if use pentoo; then
+		if use stupid_patches; then
+			epatch "${FILESDIR}/no_fs_lock.patch"
+			epatch "${FILESDIR}/parallel_install_system.patch"
+		fi
+	fi
+	call_with_python_impl \
+	emake DESTDIR="${D}" \
+		sysconfdir="/etc" \
+		prefix="/usr" \
+		install || die
+
+	# Extended set config is currently disabled in portage-2.1.x.
+	rm -rf "${D}/usr/share/portage/config/sets" || die
+
+	# Use dodoc for compression, since the Makefile doesn't do that.
+	dodoc "${S}"/{ChangeLog,NEWS,RELEASE-NOTES} || die
+
+	if use linguas_pl; then
+		doman -i18n=pl "${S_PL}"/man/pl/*.[0-9] || die
+		doman -i18n=pl_PL.UTF-8 "${S_PL}"/man/pl_PL.UTF-8/*.[0-9] || die
+	fi
+
+	# Allow external portage API consumers to import portage python modules
+	# (this used to be done with PYTHONPATH setting in /etc/env.d).
+	# For each of PYTHON_TARGETS, install a tree of *.py symlinks in
+	# site-packages, and compile with the corresponding interpreter.
+	local impl files mod_dir dest_mod_dir python relative_path x
+	for impl in "${PYTHON_COMPAT[@]}" ; do
+		use "python_targets_${impl}" || continue
+		if use build && [[ ${ROOT} == / &&
+			! -x /usr/bin/$(get_python_interpreter ${impl}) ]] ; then
+			# Tolerate --nodeps at beginning of stage1 for catalyst
+			ewarn "skipping python_targets_${impl}, interpreter not found"
+			continue
+		fi
+		while read -r mod_dir ; do
+			cd "${D}/usr/lib/portage/pym/${mod_dir}" || die
+			files=$(echo *.py)
+			if [ -z "${files}" ] || [ "${files}" = "*.py" ]; then
+				# __pycache__ directories contain no py files
+				continue
+			fi
+			dest_mod_dir=$(get_python_sitedir ${impl})/${mod_dir}
+			dodir "${dest_mod_dir}" || die
+			relative_path=../../../lib/portage/pym/${mod_dir}
+			x=/${mod_dir}
+			while [ -n "${x}" ] ; do
+				relative_path=../${relative_path}
+				x=${x%/*}
+			done
+			for x in ${files} ; do
+				dosym "${relative_path}/${x}" \
+					"${dest_mod_dir}/${x}" || die
+			done
+		done < <(cd "${D}"/usr/lib/portage/pym || die ; find * -type d ! -path "portage/tests*")
+		cd "${S}" || die
+		EPYTHON=$(get_python_interpreter ${impl}) \
+		python_compileall "$(get_python_sitedir ${impl})"
+	done
+
+	# Compile /usr/lib/portage/pym with the active interpreter, since portage
+	# internal commands force this directory to the beginning of sys.path.
+	python_compileall /usr/lib/portage/pym
+}
+
+pkg_preinst() {
+	if [[ $ROOT == / ]] ; then
+		# Run some minimal tests as a sanity check.
+		local test_runner=$(find "$D" -name runTests)
+		if [[ -n $test_runner && -x $test_runner ]] ; then
+			einfo "Running preinst sanity tests..."
+			"$test_runner" || die "preinst sanity tests failed"
+		fi
+	fi
+
+	if use xattr && ! current_python_has_xattr ; then
+		ewarn "For optimal performance in xattr handling, install"
+		ewarn "dev-python/pyxattr, or install >=dev-lang/python-3.3 and"
+		ewarn "enable USE=python3 for $CATEGORY/$PN."
+	fi
+
+	# elog dir must exist to avoid logrotate error for bug #415911.
+	# This code runs in preinst in order to bypass the mapping of
+	# portage:portage to root:root which happens after src_install.
+	keepdir /var/log/portage/elog
+	# This is allowed to fail if the user/group are invalid for prefix users.
+	if chown portage:portage "${D}"var/log/portage{,/elog} 2>/dev/null ; then
+		chmod g+s,ug+rwx "${D}"var/log/portage{,/elog}
+	fi
+
+	if [[ -d ${ROOT}var/log/portage && \
+		$(ls -ld "${ROOT}var/log/portage") != *" portage portage "* ]] && \
+		has_version '<sys-apps/portage-2.1.10.11' ; then
+		# Initialize permissions for bug #378451 and bug #377177, since older
+		# portage does not create /var/log/portage with the desired default
+		# permissions.
+		einfo "Applying portage group permission to ${ROOT}var/log/portage for bug #378451"
+		chown portage:portage "${ROOT}var/log/portage"
+		chmod g+ws "${ROOT}var/log/portage"
+	fi
+
+	if has_version '<sys-apps/portage-2.1.10.61' ; then
+		ewarn "FEATURES=config-protect-if-modified is now enabled by default."
+		ewarn "This causes the CONFIG_PROTECT behavior to be skipped for"
+		ewarn "files that have not been modified since they were installed."
+	fi
+
+	# If portage-2.1.6 is installed and the preserved_libs_registry exists,
+	# assume that the NEEDED.ELF.2 files have already been generated.
+	has_version "<=${CATEGORY}/${PN}-2.2_pre7" && \
+		! { [ -e "${ROOT}"var/lib/portage/preserved_libs_registry ] && \
+		has_version ">=${CATEGORY}/${PN}-2.1.6_rc" ; } \
+		&& NEEDED_REBUILD_UPGRADE=true || NEEDED_REBUILD_UPGRADE=false
+}
+
+pkg_postinst() {
+	if ${NEEDED_REBUILD_UPGRADE} ; then
+		einfo "rebuilding NEEDED.ELF.2 files"
+		local cpv filename line newline
+		for cpv in "${ROOT}/var/db/pkg"/*/*; do
+			[[ -f "${cpv}/NEEDED" && ! -f "${cpv}/NEEDED.ELF.2" ]] || continue
+			while read -r line; do
+				filename=${line% *}
+				newline=$(scanelf -BF "%a;%F;%S;%r;%n" "${ROOT%/}${filename}")
+				newline=${newline//  -  }
+				[[ ${#ROOT} -gt 1 ]] && newline=${newline/${ROOT%/}}
+				echo "${newline:3}" >> "${cpv}/NEEDED.ELF.2"
+			done < "${cpv}/NEEDED"
+		done
+	fi
+}