From 88438656a7b3b5824369043792ce27e63eb76f46 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sat, 10 Sep 2011 17:47:07 -0700
Subject: ebuild.sh: split out phase-helpers.sh

This relocates phase helper functions that are needed for execution of
regular phases, but not for the "depend" phase. It reduces the size of
ebuild.sh by 25%, so there's less code to be sourced during the
"depend" phase.
---
 bin/ebuild.sh        | 524 +--------------------------------------------------
 bin/phase-helpers.sh | 524 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 528 insertions(+), 520 deletions(-)
 create mode 100644 bin/phase-helpers.sh

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index 8df5eefb6..a5cc5efe5 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -238,50 +238,6 @@ best_version() {
 	esac
 }
 
-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
-}
-
 register_die_hook() {
 	local x
 	for x in $* ; do
@@ -309,161 +265,6 @@ fi
 #if no perms are specified, dirs/files will have decent defaults
 #(not secretive, but not stupid)
 umask 022
-export DESTTREE=/usr
-export INSDESTTREE=""
-export _E_EXEDESTTREE_=""
-export _E_DOCDESTTREE_=""
-export INSOPTIONS="-m0644"
-export EXEOPTIONS="-m0755"
-export LIBOPTIONS="-m0644"
-export DIROPTIONS="-m0755"
-export MOPREFIX=${PN}
-declare -a PORTAGE_DOCOMPRESS=( /usr/share/{doc,info,man} )
-declare -a PORTAGE_DOCOMPRESS_SKIP=( /usr/share/doc/${PF}/html )
-
-# adds ".keep" files so that dirs aren't auto-cleaned
-keepdir() {
-	dodir "$@"
-	local x
-	if [ "$1" == "-R" ] || [ "$1" == "-r" ]; then
-		shift
-		find "$@" -type d -printf "${D}%p/.keep_${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 "$@"; do
-			>> "${D}${x}/.keep_${CATEGORY}_${PN}-${SLOT}" || \
-				die "Failed to create .keep in ${D}${x}"
-		done
-	fi
-}
-
-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 "$myfail"
-				;;
-			ZIP|zip|jar)
-				# unzip will interactively prompt under some error conditions,
-				# as reported in bug #336285
-				( while true ; do echo n || break ; done ) | \
-				unzip -qo "${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
-}
 
 strip_duplicate_slashes() {
 	if [[ -n $1 ]] ; then
@@ -482,326 +283,6 @@ hasg() {
     return 1
 }
 hasgq() { hasg "$@" >/dev/null ; }
-econf() {
-	local x
-
-	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 '$ECONF_SOURCE/configure' failed"
-		fi
-		if [ -e /usr/share/gnuconfig/ ]; then
-			find "${WORKDIR}" -type f '(' \
-			-name config.guess -o -name config.sub ')' -print0 | \
-			while read -r -d $'\0' x ; do
-				vecho " * econf: updating ${x/${WORKDIR}\/} with /usr/share/gnuconfig/${x##*/}"
-				cp -f /usr/share/gnuconfig/"${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=\* "$@")
-			: ${CONF_PREFIX:=/usr}
-			CONF_PREFIX=${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=/usr \
-			${CBUILD:+--build=${CBUILD}} \
-			--host=${CHOST} \
-			${CTARGET:+--target=${CTARGET}} \
-			--mandir=/usr/share/man \
-			--infodir=/usr/share/info \
-			--datadir=/usr/share \
-			--sysconfdir=/etc \
-			--localstatedir=/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="${EXTRA_EINSTALL}"
-	LIBDIR_VAR="LIBDIR_${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
-			${MAKE:-make} -n prefix="${D}usr" \
-				datadir="${D}usr/share" \
-				infodir="${D}usr/share/info" \
-				localstatedir="${D}var/lib" \
-				mandir="${D}usr/share/man" \
-				sysconfdir="${D}etc" \
-				${LOCAL_EXTRA_EINSTALL} \
-				${MAKEOPTS} ${EXTRA_EMAKE} -j1 \
-				"$@" install
-		fi
-		${MAKE:-make} prefix="${D}usr" \
-			datadir="${D}usr/share" \
-			infodir="${D}usr/share/info" \
-			localstatedir="${D}var/lib" \
-			mandir="${D}usr/share/man" \
-			sysconfdir="${D}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}"
-		if ! $emake_cmd -j1 check; then
-			has test $FEATURES && die "Make check failed. See above for details."
-			has test $FEATURES || eerror "Make check failed. See above for details."
-		fi
-	elif $emake_cmd -j1 test -n &> /dev/null; then
-		vecho ">>> Test phase [test]: ${CATEGORY}/${PF}"
-		if ! $emake_cmd -j1 test; then
-			has test $FEATURES && die "Make test failed. See above for details."
-			has test $FEATURES || eerror "Make test failed. See above for details."
-		fi
-	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
-}
-
-into() {
-	if [ "$1" == "/" ]; then
-		export DESTTREE=""
-	else
-		export DESTTREE=$1
-		if [ ! -d "${D}${DESTTREE}" ]; then
-			install -d "${D}${DESTTREE}"
-			local ret=$?
-			if [[ $ret -ne 0 ]] ; then
-				helpers_die "${FUNCNAME[0]} failed"
-				return $ret
-			fi
-		fi
-	fi
-}
-
-insinto() {
-	if [ "$1" == "/" ]; then
-		export INSDESTTREE=""
-	else
-		export INSDESTTREE=$1
-		if [ ! -d "${D}${INSDESTTREE}" ]; then
-			install -d "${D}${INSDESTTREE}"
-			local ret=$?
-			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_="$1"
-		if [ ! -d "${D}${_E_EXEDESTTREE_}" ]; then
-			install -d "${D}${_E_EXEDESTTREE_}"
-			local ret=$?
-			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_="$1"
-		if [ ! -d "${D}usr/share/doc/${PF}/${_E_DOCDESTTREE_}" ]; then
-			install -d "${D}usr/share/doc/${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
-}
 
 # debug-print() gets called from many places with verbose status information useful
 # for tracking down problems. The output is in $T/eclass-debug.log.
@@ -1349,7 +830,10 @@ fi
 export EBUILD_MASTER_PID=$BASHPID
 trap 'exit 1' SIGTERM
 
-[[ $EBUILD_PHASE == depend ]] || source "${PORTAGE_BIN_PATH}/phase-functions.sh"
+if [[ $EBUILD_PHASE != depend ]] ; then
+	source "${PORTAGE_BIN_PATH}/phase-functions.sh"
+	source "${PORTAGE_BIN_PATH}/phase-helpers.sh"
+fi
 
 if ! has "$EBUILD_PHASE" clean cleanrm depend && \
 	[ -f "${T}"/environment ] ; then
diff --git a/bin/phase-helpers.sh b/bin/phase-helpers.sh
new file mode 100644
index 000000000..337639f45
--- /dev/null
+++ b/bin/phase-helpers.sh
@@ -0,0 +1,524 @@
+#!/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=$1
+		if [ ! -d "${D}${DESTTREE}" ]; then
+			install -d "${D}${DESTTREE}"
+			local ret=$?
+			if [[ $ret -ne 0 ]] ; then
+				helpers_die "${FUNCNAME[0]} failed"
+				return $ret
+			fi
+		fi
+	fi
+}
+
+insinto() {
+	if [ "$1" == "/" ]; then
+		export INSDESTTREE=""
+	else
+		export INSDESTTREE=$1
+		if [ ! -d "${D}${INSDESTTREE}" ]; then
+			install -d "${D}${INSDESTTREE}"
+			local ret=$?
+			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_="$1"
+		if [ ! -d "${D}${_E_EXEDESTTREE_}" ]; then
+			install -d "${D}${_E_EXEDESTTREE_}"
+			local ret=$?
+			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_="$1"
+		if [ ! -d "${D}usr/share/doc/${PF}/${_E_DOCDESTTREE_}" ]; then
+			install -d "${D}usr/share/doc/${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
+	if [ "$1" == "-R" ] || [ "$1" == "-r" ]; then
+		shift
+		find "$@" -type d -printf "${D}%p/.keep_${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 "$@"; do
+			>> "${D}${x}/.keep_${CATEGORY}_${PN}-${SLOT}" || \
+				die "Failed to create .keep in ${D}${x}"
+		done
+	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 "$myfail"
+				;;
+			ZIP|zip|jar)
+				# unzip will interactively prompt under some error conditions,
+				# as reported in bug #336285
+				( while true ; do echo n || break ; done ) | \
+				unzip -qo "${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 | \
+		${XARGS} -0 chmod -fR a+rX,u+w,g-w,o-w
+}
+
+econf() {
+	local x
+
+	local phase_func=$(_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 '$ECONF_SOURCE/configure' failed"
+		fi
+		if [ -e /usr/share/gnuconfig/ ]; then
+			find "${WORKDIR}" -type f '(' \
+			-name config.guess -o -name config.sub ')' -print0 | \
+			while read -r -d $'\0' x ; do
+				vecho " * econf: updating ${x/${WORKDIR}\/} with /usr/share/gnuconfig/${x##*/}"
+				cp -f /usr/share/gnuconfig/"${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=\* "$@")
+			: ${CONF_PREFIX:=/usr}
+			CONF_PREFIX=${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=/usr \
+			${CBUILD:+--build=${CBUILD}} \
+			--host=${CHOST} \
+			${CTARGET:+--target=${CTARGET}} \
+			--mandir=/usr/share/man \
+			--infodir=/usr/share/info \
+			--datadir=/usr/share \
+			--sysconfdir=/etc \
+			--localstatedir=/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="${EXTRA_EINSTALL}"
+	LIBDIR_VAR="LIBDIR_${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
+			${MAKE:-make} -n prefix="${D}usr" \
+				datadir="${D}usr/share" \
+				infodir="${D}usr/share/info" \
+				localstatedir="${D}var/lib" \
+				mandir="${D}usr/share/man" \
+				sysconfdir="${D}etc" \
+				${LOCAL_EXTRA_EINSTALL} \
+				${MAKEOPTS} ${EXTRA_EMAKE} -j1 \
+				"$@" install
+		fi
+		${MAKE:-make} prefix="${D}usr" \
+			datadir="${D}usr/share" \
+			infodir="${D}usr/share/info" \
+			localstatedir="${D}var/lib" \
+			mandir="${D}usr/share/man" \
+			sysconfdir="${D}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}"
+		if ! $emake_cmd -j1 check; then
+			has test $FEATURES && die "Make check failed. See above for details."
+			has test $FEATURES || eerror "Make check failed. See above for details."
+		fi
+	elif $emake_cmd -j1 test -n &> /dev/null; then
+		vecho ">>> Test phase [test]: ${CATEGORY}/${PF}"
+		if ! $emake_cmd -j1 test; then
+			has test $FEATURES && die "Make test failed. See above for details."
+			has test $FEATURES || eerror "Make test failed. See above for details."
+		fi
+	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
+}
-- 
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