updated portage to 2.2.8-r1

1 files changed, 663 insertions, 0 deletions

diff --git a/portage_with_autodep/bin/phase-helpers.sh b/portage_with_autodep/bin/phase-helpers.sh
new file mode 100755
index 0000000..946520b
--- /dev/null
+++ b/portage_with_autodep/bin/phase-helpers.sh
@@ -0,0 +1,663 @@
+#!/bin/bash
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+export DESTTREE=/usr
+export INSDESTTREE=""
+export _E_EXEDESTTREE_=""
+export _E_DOCDESTTREE_=""
+export INSOPTIONS="-m0644"
+export EXEOPTIONS="-m0755"
+export LIBOPTIONS="-m0644"
+export DIROPTIONS="-m0755"
+export MOPREFIX=${PN}
+declare -a PORTAGE_DOCOMPRESS=( /usr/share/{doc,info,man} )
+declare -a PORTAGE_DOCOMPRESS_SKIP=( /usr/share/doc/${PF}/html )
+
+into() {
+	if [ "$1" == "/" ]; then
+		export DESTTREE=""
+	else
+		export DESTTREE=$1
+		[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+			case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+		if [ ! -d "${ED}${DESTTREE}" ]; then
+			install -d "${ED}${DESTTREE}"
+			local ret=$?
+			if [[ $ret -ne 0 ]] ; then
+				helpers_die "${FUNCNAME[0]} failed"
+				return $ret
+			fi
+		fi
+	fi
+}
+
+insinto() {
+	if [ "$1" == "/" ]; then
+		export INSDESTTREE=""
+	else
+		export INSDESTTREE=$1
+		[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+			case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+		if [ ! -d "${ED}${INSDESTTREE}" ]; then
+			install -d "${ED}${INSDESTTREE}"
+			local ret=$?
+			if [[ $ret -ne 0 ]] ; then
+				helpers_die "${FUNCNAME[0]} failed"
+				return $ret
+			fi
+		fi
+	fi
+}
+
+exeinto() {
+	if [ "$1" == "/" ]; then
+		export _E_EXEDESTTREE_=""
+	else
+		export _E_EXEDESTTREE_="$1"
+		[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+			case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+		if [ ! -d "${ED}${_E_EXEDESTTREE_}" ]; then
+			install -d "${ED}${_E_EXEDESTTREE_}"
+			local ret=$?
+			if [[ $ret -ne 0 ]] ; then
+				helpers_die "${FUNCNAME[0]} failed"
+				return $ret
+			fi
+		fi
+	fi
+}
+
+docinto() {
+	if [ "$1" == "/" ]; then
+		export _E_DOCDESTTREE_=""
+	else
+		export _E_DOCDESTTREE_="$1"
+		[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+			case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+		if [ ! -d "${ED}usr/share/doc/${PF}/${_E_DOCDESTTREE_}" ]; then
+			install -d "${ED}usr/share/doc/${PF}/${_E_DOCDESTTREE_}"
+			local ret=$?
+			if [[ $ret -ne 0 ]] ; then
+				helpers_die "${FUNCNAME[0]} failed"
+				return $ret
+			fi
+		fi
+	fi
+}
+
+insopts() {
+	export INSOPTIONS="$@"
+
+	# `install` should never be called with '-s' ...
+	has -s ${INSOPTIONS} && die "Never call insopts() with -s"
+}
+
+diropts() {
+	export DIROPTIONS="$@"
+}
+
+exeopts() {
+	export EXEOPTIONS="$@"
+
+	# `install` should never be called with '-s' ...
+	has -s ${EXEOPTIONS} && die "Never call exeopts() with -s"
+}
+
+libopts() {
+	export LIBOPTIONS="$@"
+
+	# `install` should never be called with '-s' ...
+	has -s ${LIBOPTIONS} && die "Never call libopts() with -s"
+}
+
+docompress() {
+	has "${EAPI}" 0 1 2 3 && die "'docompress' not supported in this EAPI"
+
+	local f g
+	if [[ $1 = "-x" ]]; then
+		shift
+		for f; do
+			f=$(strip_duplicate_slashes "${f}"); f=${f%/}
+			[[ ${f:0:1} = / ]] || f="/${f}"
+			for g in "${PORTAGE_DOCOMPRESS_SKIP[@]}"; do
+				[[ ${f} = "${g}" ]] && continue 2
+			done
+			PORTAGE_DOCOMPRESS_SKIP[${#PORTAGE_DOCOMPRESS_SKIP[@]}]=${f}
+		done
+	else
+		for f; do
+			f=$(strip_duplicate_slashes "${f}"); f=${f%/}
+			[[ ${f:0:1} = / ]] || f="/${f}"
+			for g in "${PORTAGE_DOCOMPRESS[@]}"; do
+				[[ ${f} = "${g}" ]] && continue 2
+			done
+			PORTAGE_DOCOMPRESS[${#PORTAGE_DOCOMPRESS[@]}]=${f}
+		done
+	fi
+}
+
+# adds ".keep" files so that dirs aren't auto-cleaned
+keepdir() {
+	dodir "$@"
+	local x
+	[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+		case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+	if [ "$1" == "-R" ] || [ "$1" == "-r" ]; then
+		shift
+		find "$@" -type d -printf "${ED}%p/.keep_${CATEGORY}_${PN}-${SLOT}\n" \
+			| tr "\n" "\0" | \
+			while read -r -d $'\0' ; do
+				>> "$REPLY" || \
+					die "Failed to recursively create .keep files"
+			done
+	else
+		for x in "$@"; do
+			>> "${ED}${x}/.keep_${CATEGORY}_${PN}-${SLOT}" || \
+				die "Failed to create .keep in ${ED}${x}"
+		done
+	fi
+}
+
+
+useq() {
+	has $EBUILD_PHASE prerm postrm || eqawarn \
+		"QA Notice: The 'useq' function is deprecated (replaced by 'use')"
+	use ${1}
+}
+
+usev() {
+	if use ${1}; then
+		echo "${1#!}"
+		return 0
+	fi
+	return 1
+}
+
+use() {
+	local u=$1
+	local found=0
+
+	# if we got something like '!flag', then invert the return value
+	if [[ ${u:0:1} == "!" ]] ; then
+		u=${u:1}
+		found=1
+	fi
+
+	if [[ $EBUILD_PHASE = depend ]] ; then
+		# TODO: Add a registration interface for eclasses to register
+		# any number of phase hooks, so that global scope eclass
+		# initialization can by migrated to phase hooks in new EAPIs.
+		# Example: add_phase_hook before pkg_setup $ECLASS_pre_pkg_setup
+		#if [[ -n $EAPI ]] && ! has "$EAPI" 0 1 2 3 ; then
+		#	die "use() called during invalid phase: $EBUILD_PHASE"
+		#fi
+		true
+
+	# Make sure we have this USE flag in IUSE
+	elif [[ -n $PORTAGE_IUSE && -n $EBUILD_PHASE ]] ; then
+		[[ $u =~ $PORTAGE_IUSE ]] || \
+			eqawarn "QA Notice: USE Flag '${u}' not" \
+				"in IUSE for ${CATEGORY}/${PF}"
+	fi
+
+	if has ${u} ${USE} ; then
+		return ${found}
+	else
+		return $((!found))
+	fi
+}
+
+use_with() {
+	if [ -z "$1" ]; then
+		echo "!!! use_with() called without a parameter." >&2
+		echo "!!! use_with <USEFLAG> [<flagname> [value]]" >&2
+		return 1
+	fi
+
+	if ! has "${EAPI:-0}" 0 1 2 3 ; then
+		local UW_SUFFIX=${3+=$3}
+	else
+		local UW_SUFFIX=${3:+=$3}
+	fi
+	local UWORD=${2:-$1}
+
+	if use $1; then
+		echo "--with-${UWORD}${UW_SUFFIX}"
+	else
+		echo "--without-${UWORD}"
+	fi
+	return 0
+}
+
+use_enable() {
+	if [ -z "$1" ]; then
+		echo "!!! use_enable() called without a parameter." >&2
+		echo "!!! use_enable <USEFLAG> [<flagname> [value]]" >&2
+		return 1
+	fi
+
+	if ! has "${EAPI:-0}" 0 1 2 3 ; then
+		local UE_SUFFIX=${3+=$3}
+	else
+		local UE_SUFFIX=${3:+=$3}
+	fi
+	local UWORD=${2:-$1}
+
+	if use $1; then
+		echo "--enable-${UWORD}${UE_SUFFIX}"
+	else
+		echo "--disable-${UWORD}"
+	fi
+	return 0
+}
+
+unpack() {
+	local srcdir
+	local x
+	local y
+	local myfail
+	local eapi=${EAPI:-0}
+	[ -z "$*" ] && die "Nothing passed to the 'unpack' command"
+
+	for x in "$@"; do
+		vecho ">>> Unpacking ${x} to ${PWD}"
+		y=${x%.*}
+		y=${y##*.}
+
+		if [[ ${x} == "./"* ]] ; then
+			srcdir=""
+		elif [[ ${x} == ${DISTDIR%/}/* ]] ; then
+			die "Arguments to unpack() cannot begin with \${DISTDIR}."
+		elif [[ ${x} == "/"* ]] ; then
+			die "Arguments to unpack() cannot be absolute"
+		else
+			srcdir="${DISTDIR}/"
+		fi
+		[[ ! -s ${srcdir}${x} ]] && die "${x} does not exist"
+
+		_unpack_tar() {
+			if [ "${y}" == "tar" ]; then
+				$1 -c -- "$srcdir$x" | tar xof -
+				assert_sigpipe_ok "$myfail"
+			else
+				local cwd_dest=${x##*/}
+				cwd_dest=${cwd_dest%.*}
+				$1 -c -- "${srcdir}${x}" > "${cwd_dest}" || die "$myfail"
+			fi
+		}
+
+		myfail="failure unpacking ${x}"
+		case "${x##*.}" in
+			tar)
+				tar xof "$srcdir$x" || die "$myfail"
+				;;
+			tgz)
+				tar xozf "$srcdir$x" || die "$myfail"
+				;;
+			tbz|tbz2)
+				${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d} -c -- "$srcdir$x" | tar xof -
+				assert_sigpipe_ok "$myfail"
+				;;
+			ZIP|zip|jar)
+				# unzip will interactively prompt under some error conditions,
+				# as reported in bug #336285
+				( set +x ; while true ; do echo n || break ; done ) | \
+				unzip -qo "${srcdir}${x}" || die "$myfail"
+				;;
+			gz|Z|z)
+				_unpack_tar "gzip -d"
+				;;
+			bz2|bz)
+				_unpack_tar "${PORTAGE_BUNZIP2_COMMAND:-${PORTAGE_BZIP2_COMMAND} -d}"
+				;;
+			7Z|7z)
+				local my_output
+				my_output="$(7z x -y "${srcdir}${x}")"
+				if [ $? -ne 0 ]; then
+					echo "${my_output}" >&2
+					die "$myfail"
+				fi
+				;;
+			RAR|rar)
+				unrar x -idq -o+ "${srcdir}${x}" || die "$myfail"
+				;;
+			LHa|LHA|lha|lzh)
+				lha xfq "${srcdir}${x}" || die "$myfail"
+				;;
+			a)
+				ar x "${srcdir}${x}" || die "$myfail"
+				;;
+			deb)
+				# Unpacking .deb archives can not always be done with
+				# `ar`.  For instance on AIX this doesn't work out.  If
+				# we have `deb2targz` installed, prefer it over `ar` for
+				# that reason.  We just make sure on AIX `deb2targz` is
+				# installed.
+				if type -P deb2targz > /dev/null; then
+					y=${x##*/}
+					local created_symlink=0
+					if [ ! "$srcdir$x" -ef "$y" ] ; then
+						# deb2targz always extracts into the same directory as
+						# the source file, so create a symlink in the current
+						# working directory if necessary.
+						ln -sf "$srcdir$x" "$y" || die "$myfail"
+						created_symlink=1
+					fi
+					deb2targz "$y" || die "$myfail"
+					if [ $created_symlink = 1 ] ; then
+						# Clean up the symlink so the ebuild
+						# doesn't inadvertently install it.
+						rm -f "$y"
+					fi
+					mv -f "${y%.deb}".tar.gz data.tar.gz || die "$myfail"
+				else
+					ar x "$srcdir$x" || die "$myfail"
+				fi
+				;;
+			lzma)
+				_unpack_tar "lzma -d"
+				;;
+			xz)
+				if has $eapi 0 1 2 ; then
+					vecho "unpack ${x}: file format not recognized. Ignoring."
+				else
+					_unpack_tar "xz -d"
+				fi
+				;;
+			*)
+				vecho "unpack ${x}: file format not recognized. Ignoring."
+				;;
+		esac
+	done
+	# Do not chmod '.' since it's probably ${WORKDIR} and PORTAGE_WORKDIR_MODE
+	# should be preserved.
+	find . -mindepth 1 -maxdepth 1 ! -type l -print0 | \
+		${XARGS} -0 chmod -fR a+rX,u+w,g-w,o-w
+}
+
+econf() {
+	local x
+
+	[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+		case "$EAPI" in 0|1|2) local EPREFIX= ;; esac
+
+	_hasg() {
+		local x s=$1
+		shift
+		for x ; do [[ ${x} == ${s} ]] && echo "${x}" && return 0 ; done
+		return 1
+	}
+
+	_hasgq() { _hasg "$@" >/dev/null ; }
+
+	local phase_func=$(_ebuild_arg_to_phase "$EAPI" "$EBUILD_PHASE")
+	if [[ -n $phase_func ]] ; then
+		if has "$EAPI" 0 1 ; then
+			[[ $phase_func != src_compile ]] && \
+				eqawarn "QA Notice: econf called in" \
+					"$phase_func instead of src_compile"
+		else
+			[[ $phase_func != src_configure ]] && \
+				eqawarn "QA Notice: econf called in" \
+					"$phase_func instead of src_configure"
+		fi
+	fi
+
+	: ${ECONF_SOURCE:=.}
+	if [ -x "${ECONF_SOURCE}/configure" ]; then
+		if [[ -n $CONFIG_SHELL && \
+			"$(head -n1 "$ECONF_SOURCE/configure")" =~ ^'#!'[[:space:]]*/bin/sh([[:space:]]|$) ]] ; then
+			sed -e "1s:^#![[:space:]]*/bin/sh:#!$CONFIG_SHELL:" -i "$ECONF_SOURCE/configure" || \
+				die "Substition of shebang in '$ECONF_SOURCE/configure' failed"
+		fi
+		if [ -e "${EPREFIX}"/usr/share/gnuconfig/ ]; then
+			find "${WORKDIR}" -type f '(' \
+			-name config.guess -o -name config.sub ')' -print0 | \
+			while read -r -d $'\0' x ; do
+				vecho " * econf: updating ${x/${WORKDIR}\/} with ${EPREFIX}/usr/share/gnuconfig/${x##*/}"
+				cp -f "${EPREFIX}"/usr/share/gnuconfig/"${x##*/}" "${x}"
+			done
+		fi
+
+		# EAPI=4 adds --disable-dependency-tracking to econf
+		if ! has "$EAPI" 0 1 2 3 3_pre2 && \
+			"${ECONF_SOURCE}/configure" --help 2>/dev/null | \
+			grep -q disable-dependency-tracking ; then
+			set -- --disable-dependency-tracking "$@"
+		fi
+
+		# if the profile defines a location to install libs to aside from default, pass it on.
+		# if the ebuild passes in --libdir, they're responsible for the conf_libdir fun.
+		local CONF_LIBDIR LIBDIR_VAR="LIBDIR_${ABI}"
+		if [[ -n ${ABI} && -n ${!LIBDIR_VAR} ]] ; then
+			CONF_LIBDIR=${!LIBDIR_VAR}
+		fi
+		if [[ -n ${CONF_LIBDIR} ]] && ! _hasgq --libdir=\* "$@" ; then
+			export CONF_PREFIX=$(_hasg --exec-prefix=\* "$@")
+			[[ -z ${CONF_PREFIX} ]] && CONF_PREFIX=$(_hasg --prefix=\* "$@")
+			: ${CONF_PREFIX:=${EPREFIX}/usr}
+			CONF_PREFIX=${CONF_PREFIX#*=}
+			[[ ${CONF_PREFIX} != /* ]] && CONF_PREFIX="/${CONF_PREFIX}"
+			[[ ${CONF_LIBDIR} != /* ]] && CONF_LIBDIR="/${CONF_LIBDIR}"
+			set -- --libdir="$(strip_duplicate_slashes ${CONF_PREFIX}${CONF_LIBDIR})" "$@"
+		fi
+
+		set -- \
+			--prefix="${EPREFIX}"/usr \
+			${CBUILD:+--build=${CBUILD}} \
+			--host=${CHOST} \
+			${CTARGET:+--target=${CTARGET}} \
+			--mandir="${EPREFIX}"/usr/share/man \
+			--infodir="${EPREFIX}"/usr/share/info \
+			--datadir="${EPREFIX}"/usr/share \
+			--sysconfdir="${EPREFIX}"/etc \
+			--localstatedir="${EPREFIX}"/var/lib \
+			"$@" \
+			${EXTRA_ECONF}
+		vecho "${ECONF_SOURCE}/configure" "$@"
+
+		if ! "${ECONF_SOURCE}/configure" "$@" ; then
+
+			if [ -s config.log ]; then
+				echo
+				echo "!!! Please attach the following file when seeking support:"
+				echo "!!! ${PWD}/config.log"
+			fi
+			die "econf failed"
+		fi
+	elif [ -f "${ECONF_SOURCE}/configure" ]; then
+		die "configure is not executable"
+	else
+		die "no configure script found"
+	fi
+}
+
+einstall() {
+	# CONF_PREFIX is only set if they didn't pass in libdir above.
+	local LOCAL_EXTRA_EINSTALL="${EXTRA_EINSTALL}"
+	[[ " ${FEATURES} " == *" force-prefix "* ]] || \
+		case "$EAPI" in 0|1|2) local ED=${D} ;; esac
+	LIBDIR_VAR="LIBDIR_${ABI}"
+	if [ -n "${ABI}" -a -n "${!LIBDIR_VAR}" ]; then
+		CONF_LIBDIR="${!LIBDIR_VAR}"
+	fi
+	unset LIBDIR_VAR
+	if [ -n "${CONF_LIBDIR}" ] && [ "${CONF_PREFIX:+set}" = set ]; then
+		EI_DESTLIBDIR="${D}/${CONF_PREFIX}/${CONF_LIBDIR}"
+		EI_DESTLIBDIR="$(strip_duplicate_slashes ${EI_DESTLIBDIR})"
+		LOCAL_EXTRA_EINSTALL="libdir=${EI_DESTLIBDIR} ${LOCAL_EXTRA_EINSTALL}"
+		unset EI_DESTLIBDIR
+	fi
+
+	if [ -f ./[mM]akefile -o -f ./GNUmakefile ] ; then
+		if [ "${PORTAGE_DEBUG}" == "1" ]; then
+			${MAKE:-make} -n prefix="${ED}usr" \
+				datadir="${ED}usr/share" \
+				infodir="${ED}usr/share/info" \
+				localstatedir="${ED}var/lib" \
+				mandir="${ED}usr/share/man" \
+				sysconfdir="${ED}etc" \
+				${LOCAL_EXTRA_EINSTALL} \
+				${MAKEOPTS} ${EXTRA_EMAKE} -j1 \
+				"$@" install
+		fi
+		${MAKE:-make} prefix="${ED}usr" \
+			datadir="${ED}usr/share" \
+			infodir="${ED}usr/share/info" \
+			localstatedir="${ED}var/lib" \
+			mandir="${ED}usr/share/man" \
+			sysconfdir="${ED}etc" \
+			${LOCAL_EXTRA_EINSTALL} \
+			${MAKEOPTS} ${EXTRA_EMAKE} -j1 \
+			"$@" install || die "einstall failed"
+	else
+		die "no Makefile found"
+	fi
+}
+
+_eapi0_pkg_nofetch() {
+	[ -z "${SRC_URI}" ] && return
+
+	elog "The following are listed in SRC_URI for ${PN}:"
+	local x
+	for x in $(echo ${SRC_URI}); do
+		elog "   ${x}"
+	done
+}
+
+_eapi0_src_unpack() {
+	[[ -n ${A} ]] && unpack ${A}
+}
+
+_eapi0_src_compile() {
+	if [ -x ./configure ] ; then
+		econf
+	fi
+	_eapi2_src_compile
+}
+
+_eapi0_src_test() {
+	# Since we don't want emake's automatic die
+	# support (EAPI 4 and later), and we also don't
+	# want the warning messages that it produces if
+	# we call it in 'nonfatal' mode, we use emake_cmd
+	# to emulate the desired parts of emake behavior.
+	local emake_cmd="${MAKE:-make} ${MAKEOPTS} ${EXTRA_EMAKE}"
+	if $emake_cmd -j1 check -n &> /dev/null; then
+		vecho ">>> Test phase [check]: ${CATEGORY}/${PF}"
+		$emake_cmd -j1 check || \
+			die "Make check failed. See above for details."
+	elif $emake_cmd -j1 test -n &> /dev/null; then
+		vecho ">>> Test phase [test]: ${CATEGORY}/${PF}"
+		$emake_cmd -j1 test || \
+			die "Make test failed. See above for details."
+	else
+		vecho ">>> Test phase [none]: ${CATEGORY}/${PF}"
+	fi
+}
+
+_eapi1_src_compile() {
+	_eapi2_src_configure
+	_eapi2_src_compile
+}
+
+_eapi2_src_configure() {
+	if [[ -x ${ECONF_SOURCE:-.}/configure ]] ; then
+		econf
+	fi
+}
+
+_eapi2_src_compile() {
+	if [ -f Makefile ] || [ -f GNUmakefile ] || [ -f makefile ]; then
+		emake || die "emake failed"
+	fi
+}
+
+_eapi4_src_install() {
+	if [[ -f Makefile || -f GNUmakefile || -f makefile ]] ; then
+		emake DESTDIR="${D}" install
+	fi
+
+	if ! declare -p DOCS &>/dev/null ; then
+		local d
+		for d in README* ChangeLog AUTHORS NEWS TODO CHANGES \
+				THANKS BUGS FAQ CREDITS CHANGELOG ; do
+			[[ -s "${d}" ]] && dodoc "${d}"
+		done
+	elif [[ $(declare -p DOCS) == "declare -a "* ]] ; then
+		dodoc "${DOCS[@]}"
+	else
+		dodoc ${DOCS}
+	fi
+}
+
+# @FUNCTION: has_version
+# @USAGE: <DEPEND ATOM>
+# @DESCRIPTION:
+# Return true if given package is installed. Otherwise return false.
+# Callers may override the ROOT variable in order to match packages from an
+# alternative ROOT.
+has_version() {
+
+	local eroot
+	case "$EAPI" in
+		0|1|2)
+			[[ " ${FEATURES} " == *" force-prefix "* ]] && \
+				eroot=${ROOT%/}${EPREFIX}/ || eroot=${ROOT}
+			;;
+		*)
+			eroot=${ROOT%/}${EPREFIX}/
+			;;
+	esac
+	if [[ -n $PORTAGE_IPC_DAEMON ]] ; then
+		"$PORTAGE_BIN_PATH"/ebuild-ipc has_version "${eroot}" "$1"
+	else
+		PYTHONPATH=${PORTAGE_PYM_PATH}${PYTHONPATH:+:}${PYTHONPATH} \
+		"${PORTAGE_PYTHON:-/usr/bin/python}" "${PORTAGE_BIN_PATH}/portageq" has_version "${eroot}" "$1"
+	fi
+	local retval=$?
+	case "${retval}" in
+		0|1)
+			return ${retval}
+			;;
+		*)
+			die "unexpected portageq exit code: ${retval}"
+			;;
+	esac
+}
+
+# @FUNCTION: best_version
+# @USAGE: <DEPEND ATOM>
+# @DESCRIPTION:
+# Returns the best/most-current match.
+# Callers may override the ROOT variable in order to match packages from an
+# alternative ROOT.
+best_version() {
+
+	local eroot
+	case "$EAPI" in
+		0|1|2)
+			[[ " ${FEATURES} " == *" force-prefix "* ]] && \
+				eroot=${ROOT%/}${EPREFIX}/ || eroot=${ROOT}
+			;;
+		*)
+			eroot=${ROOT%/}${EPREFIX}/
+			;;
+	esac
+	if [[ -n $PORTAGE_IPC_DAEMON ]] ; then
+		"$PORTAGE_BIN_PATH"/ebuild-ipc best_version "${eroot}" "$1"
+	else
+		PYTHONPATH=${PORTAGE_PYM_PATH}${PYTHONPATH:+:}${PYTHONPATH} \
+		"${PORTAGE_PYTHON:-/usr/bin/python}" "${PORTAGE_BIN_PATH}/portageq" best_version "${eroot}" "$1"
+	fi
+	local retval=$?
+	case "${retval}" in
+		0|1)
+			return ${retval}
+			;;
+		*)
+			die "unexpected portageq exit code: ${retval}"
+			;;
+	esac
+}