diff --git a/sdk_container/src/third_party/portage-stable/eclass/eutils.eclass b/sdk_container/src/third_party/portage-stable/eclass/eutils.eclass
new file mode 100644
index 0000000000..4427e7d4e3
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/eclass/eutils.eclass
@@ -0,0 +1,1686 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/eutils.eclass,v 1.368 2011/10/27 07:16:08 vapier Exp $
+
+# @ECLASS: eutils.eclass
+# @MAINTAINER:
+# base-system@gentoo.org
+# @BLURB: many extra (but common) functions that are used in ebuilds
+# @DESCRIPTION:
+# The eutils eclass contains a suite of functions that complement
+# the ones that ebuild.sh already contain.  The idea is that the functions
+# are not required in all ebuilds but enough utilize them to have a common
+# home rather than having multiple ebuilds implementing the same thing.
+#
+# Due to the nature of this eclass, some functions may have maintainers
+# different from the overall eclass!
+
+inherit multilib portability user
+
+DESCRIPTION="Based on the ${ECLASS} eclass"
+
+if has "${EAPI:-0}" 0 1 2; then
+
+# @FUNCTION: epause
+# @USAGE: [seconds]
+# @DESCRIPTION:
+# Sleep for the specified number of seconds (default of 5 seconds).  Useful when
+# printing a message the user should probably be reading and often used in
+# conjunction with the ebeep function.  If the EPAUSE_IGNORE env var is set,
+# don't wait at all. Defined in EAPIs 0 1 and 2.
+epause() {
+	[[ -z ${EPAUSE_IGNORE} ]] && sleep ${1:-5}
+}
+
+# @FUNCTION: ebeep
+# @USAGE: [number of beeps]
+# @DESCRIPTION:
+# Issue the specified number of beeps (default of 5 beeps).  Useful when
+# printing a message the user should probably be reading and often used in
+# conjunction with the epause function.  If the EBEEP_IGNORE env var is set,
+# don't beep at all. Defined in EAPIs 0 1 and 2.
+ebeep() {
+	local n
+	if [[ -z ${EBEEP_IGNORE} ]] ; then
+		for ((n=1 ; n <= ${1:-5} ; n++)) ; do
+			echo -ne "\a"
+			sleep 0.1 &>/dev/null ; sleep 0,1 &>/dev/null
+			echo -ne "\a"
+			sleep 1
+		done
+	fi
+}
+
+else
+
+ebeep() {
+	ewarn "QA Notice: ebeep is not defined in EAPI=${EAPI}, please file a bug at http://bugs.gentoo.org"
+}
+
+epause() {
+	ewarn "QA Notice: epause is not defined in EAPI=${EAPI}, please file a bug at http://bugs.gentoo.org"
+}
+
+fi
+
+# @FUNCTION: eqawarn
+# @USAGE: [message]
+# @DESCRIPTION:
+# Proxy to ewarn for package managers that don't provide eqawarn and use the PM
+# implementation if available. Reuses PORTAGE_ELOG_CLASSES as set by the dev
+# profile.
+if ! declare -F eqawarn >/dev/null ; then
+	eqawarn() {
+		has qa ${PORTAGE_ELOG_CLASSES} && ewarn "$@"
+	}
+fi
+
+# @FUNCTION: ecvs_clean
+# @USAGE: [list of dirs]
+# @DESCRIPTION:
+# Remove CVS directories recursiveley.  Useful when a source tarball contains
+# internal CVS directories.  Defaults to $PWD.
+ecvs_clean() {
+	[[ -z $* ]] && set -- .
+	find "$@" -type d -name 'CVS' -prune -print0 | xargs -0 rm -rf
+	find "$@" -type f -name '.cvs*' -print0 | xargs -0 rm -rf
+}
+
+# @FUNCTION: esvn_clean
+# @USAGE: [list of dirs]
+# @DESCRIPTION:
+# Remove .svn directories recursiveley.  Useful when a source tarball contains
+# internal Subversion directories.  Defaults to $PWD.
+esvn_clean() {
+	[[ -z $* ]] && set -- .
+	find "$@" -type d -name '.svn' -prune -print0 | xargs -0 rm -rf
+}
+
+# @FUNCTION: eshopts_push
+# @USAGE: [options to `set` or `shopt`]
+# @DESCRIPTION:
+# Often times code will want to enable a shell option to change code behavior.
+# Since changing shell options can easily break other pieces of code (which
+# assume the default state), eshopts_push is used to (1) push the current shell
+# options onto a stack and (2) pass the specified arguments to set.
+#
+# If the first argument is '-s' or '-u', we assume you want to call `shopt`
+# rather than `set` as there are some options only available via that.
+#
+# A common example is to disable shell globbing so that special meaning/care
+# may be used with variables/arguments to custom functions.  That would be:
+# @CODE
+#		eshopts_push -o noglob
+#		for x in ${foo} ; do
+#			if ...some check... ; then
+#				eshopts_pop
+#				return 0
+#			fi
+#		done
+#		eshopts_pop
+# @CODE
+eshopts_push() {
+	# have to assume __ESHOPTS_SAVE__ isn't screwed with
+	# as a `declare -a` here will reset its value
+	local i=${#__ESHOPTS_SAVE__[@]}
+	if [[ $1 == -[su] ]] ; then
+		__ESHOPTS_SAVE__[$i]=$(shopt -p)
+		[[ $# -eq 0 ]] && return 0
+		shopt "$@" || die "eshopts_push: bad options to shopt: $*"
+	else
+		__ESHOPTS_SAVE__[$i]=$-
+		[[ $# -eq 0 ]] && return 0
+		set "$@" || die "eshopts_push: bad options to set: $*"
+	fi
+}
+
+# @FUNCTION: eshopts_pop
+# @USAGE:
+# @DESCRIPTION:
+# Restore the shell options to the state saved with the corresponding
+# eshopts_push call.  See that function for more details.
+eshopts_pop() {
+	[[ $# -ne 0 ]] && die "eshopts_pop takes no arguments"
+	local i=$(( ${#__ESHOPTS_SAVE__[@]} - 1 ))
+	[[ ${i} -eq -1 ]] && die "eshopts_{push,pop}: unbalanced pair"
+	local s=${__ESHOPTS_SAVE__[$i]}
+	unset __ESHOPTS_SAVE__[$i]
+	if [[ ${s} == "shopt -"* ]] ; then
+		eval "${s}" || die "eshopts_pop: sanity: invalid shopt options: ${s}"
+	else
+		set +$-     || die "eshopts_pop: sanity: invalid shell settings: $-"
+		set -${s}   || die "eshopts_pop: sanity: unable to restore saved shell settings: ${s}"
+	fi
+}
+
+# @VARIABLE: EPATCH_SOURCE
+# @DESCRIPTION:
+# Default directory to search for patches.
+EPATCH_SOURCE="${WORKDIR}/patch"
+# @VARIABLE: EPATCH_SUFFIX
+# @DESCRIPTION:
+# Default extension for patches (do not prefix the period yourself).
+EPATCH_SUFFIX="patch.bz2"
+# @VARIABLE: EPATCH_OPTS
+# @DESCRIPTION:
+# Default options for patch:
+# @CODE
+#	-g0 - keep RCS, ClearCase, Perforce and SCCS happy #24571
+#	--no-backup-if-mismatch - do not leave .orig files behind
+#	-E - automatically remove empty files
+# @CODE
+EPATCH_OPTS="-g0 -E --no-backup-if-mismatch"
+# @VARIABLE: EPATCH_EXCLUDE
+# @DESCRIPTION:
+# List of patches not to apply.	 Note this is only file names,
+# and not the full path.  Globs accepted.
+EPATCH_EXCLUDE=""
+# @VARIABLE: EPATCH_SINGLE_MSG
+# @DESCRIPTION:
+# Change the printed message for a single patch.
+EPATCH_SINGLE_MSG=""
+# @VARIABLE: EPATCH_MULTI_MSG
+# @DESCRIPTION:
+# Change the printed message for multiple patches.
+EPATCH_MULTI_MSG="Applying various patches (bugfixes/updates) ..."
+# @VARIABLE: EPATCH_FORCE
+# @DESCRIPTION:
+# Only require patches to match EPATCH_SUFFIX rather than the extended
+# arch naming style.
+EPATCH_FORCE="no"
+
+# @FUNCTION: epatch
+# @USAGE: [patches] [dirs of patches]
+# @DESCRIPTION:
+# epatch is designed to greatly simplify the application of patches.  It can
+# process patch files directly, or directories of patches.  The patches may be
+# compressed (bzip/gzip/etc...) or plain text.  You generally need not specify
+# the -p option as epatch will automatically attempt -p0 to -p5 until things
+# apply successfully.
+#
+# If you do not specify any options, then epatch will default to the directory
+# specified by EPATCH_SOURCE.
+#
+# When processing directories, epatch will apply all patches that match:
+# @CODE
+#	if ${EPATCH_FORCE} != "yes"
+#		??_${ARCH}_foo.${EPATCH_SUFFIX}
+#	else
+#		*.${EPATCH_SUFFIX}
+# @CODE
+# The leading ?? are typically numbers used to force consistent patch ordering.
+# The arch field is used to apply patches only for the host architecture with
+# the special value of "all" means apply for everyone.  Note that using values
+# other than "all" is highly discouraged -- you should apply patches all the
+# time and let architecture details be detected at configure/compile time.
+#
+# If EPATCH_SUFFIX is empty, then no period before it is implied when searching
+# for patches to apply.
+#
+# Refer to the other EPATCH_xxx variables for more customization of behavior.
+epatch() {
+	_epatch_draw_line() {
+		# create a line of same length as input string
+		[[ -z $1 ]] && set "$(printf "%65s" '')"
+		echo "${1//?/=}"
+	}
+
+	unset P4CONFIG P4PORT P4USER # keep perforce at bay #56402
+
+	# Let the rest of the code process one user arg at a time --
+	# each arg may expand into multiple patches, and each arg may
+	# need to start off with the default global EPATCH_xxx values
+	if [[ $# -gt 1 ]] ; then
+		local m
+		for m in "$@" ; do
+			epatch "${m}"
+		done
+		return 0
+	fi
+
+	local SINGLE_PATCH="no"
+	# no args means process ${EPATCH_SOURCE}
+	[[ $# -eq 0 ]] && set -- "${EPATCH_SOURCE}"
+
+	if [[ -f $1 ]] ; then
+		SINGLE_PATCH="yes"
+		set -- "$1"
+		# Use the suffix from the single patch (localize it); the code
+		# below will find the suffix for us
+		local EPATCH_SUFFIX=$1
+
+	elif [[ -d $1 ]] ; then
+		# Some people like to make dirs of patches w/out suffixes (vim)
+		set -- "$1"/*${EPATCH_SUFFIX:+."${EPATCH_SUFFIX}"}
+
+	elif [[ -f ${EPATCH_SOURCE}/$1 ]] ; then
+		# Re-use EPATCH_SOURCE as a search dir
+		epatch "${EPATCH_SOURCE}/$1"
+		return $?
+
+	else
+		# sanity check ... if it isn't a dir or file, wtf man ?
+		[[ $# -ne 0 ]] && EPATCH_SOURCE=$1
+		echo
+		eerror "Cannot find \$EPATCH_SOURCE!  Value for \$EPATCH_SOURCE is:"
+		eerror
+		eerror "  ${EPATCH_SOURCE}"
+		eerror "  ( ${EPATCH_SOURCE##*/} )"
+		echo
+		die "Cannot find \$EPATCH_SOURCE!"
+	fi
+
+	local PIPE_CMD
+	case ${EPATCH_SUFFIX##*\.} in
+		xz)      PIPE_CMD="xz -dc"    ;;
+		lzma)    PIPE_CMD="lzma -dc"  ;;
+		bz2)     PIPE_CMD="bzip2 -dc" ;;
+		gz|Z|z)  PIPE_CMD="gzip -dc"  ;;
+		ZIP|zip) PIPE_CMD="unzip -p"  ;;
+		*)       ;;
+	esac
+
+	[[ ${SINGLE_PATCH} == "no" ]] && einfo "${EPATCH_MULTI_MSG}"
+
+	local x
+	for x in "$@" ; do
+		# If the patch dir given contains subdirs, or our EPATCH_SUFFIX
+		# didn't match anything, ignore continue on
+		[[ ! -f ${x} ]] && continue
+
+		local patchname=${x##*/}
+
+		# Apply single patches, or forced sets of patches, or
+		# patches with ARCH dependant names.
+		#	???_arch_foo.patch
+		# Else, skip this input altogether
+		local a=${patchname#*_} # strip the ???_
+		a=${a%%_*}              # strip the _foo.patch
+		if ! [[ ${SINGLE_PATCH} == "yes" || \
+				${EPATCH_FORCE} == "yes" || \
+				${a} == all     || \
+				${a} == ${ARCH} ]]
+		then
+			continue
+		fi
+
+		# Let people filter things dynamically
+		if [[ -n ${EPATCH_EXCLUDE} ]] ; then
+			# let people use globs in the exclude
+			eshopts_push -o noglob
+
+			local ex
+			for ex in ${EPATCH_EXCLUDE} ; do
+				if [[ ${patchname} == ${ex} ]] ; then
+					eshopts_pop
+					continue 2
+				fi
+			done
+
+			eshopts_pop
+		fi
+
+		if [[ ${SINGLE_PATCH} == "yes" ]] ; then
+			if [[ -n ${EPATCH_SINGLE_MSG} ]] ; then
+				einfo "${EPATCH_SINGLE_MSG}"
+			else
+				einfo "Applying ${patchname} ..."
+			fi
+		else
+			einfo "  ${patchname} ..."
+		fi
+
+		# most of the time, there will only be one run per unique name,
+		# but if there are more, make sure we get unique log filenames
+		local STDERR_TARGET="${T}/${patchname}.out"
+		if [[ -e ${STDERR_TARGET} ]] ; then
+			STDERR_TARGET="${T}/${patchname}-$$.out"
+		fi
+
+		printf "***** %s *****\n\n" "${patchname}" > "${STDERR_TARGET}"
+
+		# Decompress the patch if need be
+		local count=0
+		local PATCH_TARGET
+		if [[ -n ${PIPE_CMD} ]] ; then
+			PATCH_TARGET="${T}/$$.patch"
+			echo "PIPE_COMMAND:  ${PIPE_CMD} ${x} > ${PATCH_TARGET}" >> "${STDERR_TARGET}"
+
+			if ! (${PIPE_CMD} "${x}" > "${PATCH_TARGET}") >> "${STDERR_TARGET}" 2>&1 ; then
+				echo
+				eerror "Could not extract patch!"
+				#die "Could not extract patch!"
+				count=5
+				break
+			fi
+		else
+			PATCH_TARGET=${x}
+		fi
+
+		# Check for absolute paths in patches.  If sandbox is disabled,
+		# people could (accidently) patch files in the root filesystem.
+		# Or trigger other unpleasantries #237667.  So disallow -p0 on
+		# such patches.
+		local abs_paths=$(egrep -n '^[-+]{3} /' "${PATCH_TARGET}" | awk '$2 != "/dev/null" { print }')
+		if [[ -n ${abs_paths} ]] ; then
+			count=1
+			printf "NOTE: skipping -p0 due to absolute paths in patch:\n%s\n" "${abs_paths}" >> "${STDERR_TARGET}"
+		fi
+		# Similar reason, but with relative paths.
+		local rel_paths=$(egrep -n '^[-+]{3} [^	]*[.][.]/' "${PATCH_TARGET}")
+		if [[ -n ${rel_paths} ]] ; then
+			eqawarn "QA Notice: Your patch uses relative paths '../'."
+			eqawarn " In the future this will cause a failure."
+			eqawarn "${rel_paths}"
+		fi
+
+		# Dynamically detect the correct -p# ... i'm lazy, so shoot me :/
+		while [[ ${count} -lt 5 ]] ; do
+			# Generate some useful debug info ...
+			(
+			_epatch_draw_line "***** ${patchname} *****"
+			echo
+			echo "PATCH COMMAND:  patch -p${count} ${EPATCH_OPTS} < '${PATCH_TARGET}'"
+			echo
+			_epatch_draw_line "***** ${patchname} *****"
+			patch -p${count} ${EPATCH_OPTS} --dry-run -f < "${PATCH_TARGET}" 2>&1
+			ret=$?
+			echo
+			echo "patch program exited with status ${ret}"
+			exit ${ret}
+			) >> "${STDERR_TARGET}"
+
+			if [ $? -eq 0 ] ; then
+				(
+				_epatch_draw_line "***** ${patchname} *****"
+				echo
+				echo "ACTUALLY APPLYING ${patchname} ..."
+				echo
+				_epatch_draw_line "***** ${patchname} *****"
+				patch -p${count} ${EPATCH_OPTS} < "${PATCH_TARGET}" 2>&1
+				ret=$?
+				echo
+				echo "patch program exited with status ${ret}"
+				exit ${ret}
+				) >> "${STDERR_TARGET}"
+
+				if [ $? -ne 0 ] ; then
+					echo
+					eerror "A dry-run of patch command succeeded, but actually"
+					eerror "applying the patch failed!"
+					#die "Real world sux compared to the dreamworld!"
+					count=5
+				fi
+				break
+			fi
+
+			: $(( count++ ))
+		done
+
+		# if we had to decompress the patch, delete the temp one
+		if [[ -n ${PIPE_CMD} ]] ; then
+			rm -f "${PATCH_TARGET}"
+		fi
+
+		if [[ ${count} -ge 5 ]] ; then
+			echo
+			eerror "Failed Patch: ${patchname} !"
+			eerror " ( ${PATCH_TARGET} )"
+			eerror
+			eerror "Include in your bugreport the contents of:"
+			eerror
+			eerror "  ${STDERR_TARGET}"
+			echo
+			die "Failed Patch: ${patchname}!"
+		fi
+
+		# if everything worked, delete the patch log
+		rm -f "${STDERR_TARGET}"
+		eend 0
+	done
+
+	[[ ${SINGLE_PATCH} == "no" ]] && einfo "Done with patching"
+	: # everything worked
+}
+
+# @FUNCTION: epatch_user
+# @USAGE:
+# @DESCRIPTION:
+# Applies user-provided patches to the source tree. The patches are
+# taken from /etc/portage/patches/<CATEGORY>/<PF|P|PN>/, where the first
+# of these three directories to exist will be the one to use, ignoring
+# any more general directories which might exist as well.
+#
+# User patches are intended for quick testing of patches without ebuild
+# modifications, as well as for permanent customizations a user might
+# desire. Obviously, there can be no official support for arbitrarily
+# patched ebuilds. So whenever a build log in a bug report mentions that
+# user patches were applied, the user should be asked to reproduce the
+# problem without these.
+#
+# Not all ebuilds do call this function, so placing patches in the
+# stated directory might or might not work, depending on the package and
+# the eclasses it inherits and uses. It is safe to call the function
+# repeatedly, so it is always possible to add a call at the ebuild
+# level. The first call is the time when the patches will be
+# applied.
+#
+# Ideally, this function should be called after gentoo-specific patches
+# have been applied, so that their code can be modified as well, but
+# before calls to e.g. eautoreconf, as the user patches might affect
+# autotool input files as well.
+epatch_user() {
+	[[ $# -ne 0 ]] && die "epatch_user takes no options"
+
+	# Allow multiple calls to this function; ignore all but the first
+	local applied="${T}/epatch_user.applied"
+	[[ -e ${applied} ]] && return 2
+
+	# don't clobber any EPATCH vars that the parent might want
+	local EPATCH_SOURCE check base=${PORTAGE_CONFIGROOT%/}/etc/portage/patches
+	for check in {${CATEGORY}/${PF},${CATEGORY}/${P},${CATEGORY}/${PN}}; do
+		EPATCH_SOURCE=${base}/${CTARGET}/${check}
+		[[ -r ${EPATCH_SOURCE} ]] || EPATCH_SOURCE=${base}/${CHOST}/${check}
+		[[ -r ${EPATCH_SOURCE} ]] || EPATCH_SOURCE=${base}/${check}
+		if [[ -d ${EPATCH_SOURCE} ]] ; then
+			EPATCH_SOURCE=${EPATCH_SOURCE} \
+			EPATCH_SUFFIX="patch" \
+			EPATCH_FORCE="yes" \
+			EPATCH_MULTI_MSG="Applying user patches from ${EPATCH_SOURCE} ..." \
+			epatch
+			echo "${EPATCH_SOURCE}" > "${applied}"
+			return 0
+		fi
+	done
+	echo "none" > "${applied}"
+	return 1
+}
+
+# @FUNCTION: emktemp
+# @USAGE: [temp dir]
+# @DESCRIPTION:
+# Cheap replacement for when debianutils (and thus mktemp)
+# does not exist on the users system.
+emktemp() {
+	local exe="touch"
+	[[ $1 == -d ]] && exe="mkdir" && shift
+	local topdir=$1
+
+	if [[ -z ${topdir} ]] ; then
+		[[ -z ${T} ]] \
+			&& topdir="/tmp" \
+			|| topdir=${T}
+	fi
+
+	if ! type -P mktemp > /dev/null ; then
+		# system lacks `mktemp` so we have to fake it
+		local tmp=/
+		while [[ -e ${tmp} ]] ; do
+			tmp=${topdir}/tmp.${RANDOM}.${RANDOM}.${RANDOM}
+		done
+		${exe} "${tmp}" || ${exe} -p "${tmp}"
+		echo "${tmp}"
+	else
+		# the args here will give slightly wierd names on BSD,
+		# but should produce a usable file on all userlands
+		if [[ ${exe} == "touch" ]] ; then
+			TMPDIR="${topdir}" mktemp -t tmp.XXXXXXXXXX
+		else
+			TMPDIR="${topdir}" mktemp -dt tmp.XXXXXXXXXX
+		fi
+	fi
+}
+
+# @FUNCTION: edos2unix
+# @USAGE: <file> [more files ...]
+# @DESCRIPTION:
+# A handy replacement for dos2unix, recode, fixdos, etc...  This allows you
+# to remove all of these text utilities from DEPEND variables because this
+# is a script based solution.  Just give it a list of files to convert and
+# they will all be changed from the DOS CRLF format to the UNIX LF format.
+edos2unix() {
+	[[ $# -eq 0 ]] && return 0
+	sed -i 's/\r$//' -- "$@" || die
+}
+
+# Make a desktop file !
+# Great for making those icons in kde/gnome startmenu !
+# Amaze your friends !	Get the women !	 Join today !
+#
+# make_desktop_entry(<command>, [name], [icon], [type], [fields])
+#
+# binary:	what command does the app run with ?
+# name:		the name that will show up in the menu
+# icon:		give your little like a pretty little icon ...
+#			this can be relative (to /usr/share/pixmaps) or
+#			a full path to an icon
+# type:		what kind of application is this ?	for categories:
+#			http://standards.freedesktop.org/menu-spec/latest/apa.html
+# fields:	extra fields to append to the desktop file; a printf string
+make_desktop_entry() {
+	[[ -z $1 ]] && die "make_desktop_entry: You must specify the executable"
+
+	local exec=${1}
+	local name=${2:-${PN}}
+	local icon=${3:-${PN}}
+	local type=${4}
+	local fields=${5}
+
+	if [[ -z ${type} ]] ; then
+		local catmaj=${CATEGORY%%-*}
+		local catmin=${CATEGORY##*-}
+		case ${catmaj} in
+			app)
+				case ${catmin} in
+					accessibility) type=Accessibility;;
+					admin)         type=System;;
+					antivirus)     type=System;;
+					arch)          type=Archiving;;
+					backup)        type=Archiving;;
+					cdr)           type=DiscBurning;;
+					dicts)         type=Dictionary;;
+					doc)           type=Documentation;;
+					editors)       type=TextEditor;;
+					emacs)         type=TextEditor;;
+					emulation)     type=Emulator;;
+					laptop)        type=HardwareSettings;;
+					office)        type=Office;;
+					pda)           type=PDA;;
+					vim)           type=TextEditor;;
+					xemacs)        type=TextEditor;;
+				esac
+				;;
+
+			dev)
+				type="Development"
+				;;
+
+			games)
+				case ${catmin} in
+					action|fps) type=ActionGame;;
+					arcade)     type=ArcadeGame;;
+					board)      type=BoardGame;;
+					emulation)  type=Emulator;;
+					kids)       type=KidsGame;;
+					puzzle)     type=LogicGame;;
+					roguelike)  type=RolePlaying;;
+					rpg)        type=RolePlaying;;
+					simulation) type=Simulation;;
+					sports)     type=SportsGame;;
+					strategy)   type=StrategyGame;;
+				esac
+				type="Game;${type}"
+				;;
+
+			gnome)
+				type="Gnome;GTK"
+				;;
+
+			kde)
+				type="KDE;Qt"
+				;;
+
+			mail)
+				type="Network;Email"
+				;;
+
+			media)
+				case ${catmin} in
+					gfx)
+						type=Graphics
+						;;
+					*)
+						case ${catmin} in
+							radio) type=Tuner;;
+							sound) type=Audio;;
+							tv)    type=TV;;
+							video) type=Video;;
+						esac
+						type="AudioVideo;${type}"
+						;;
+				esac
+				;;
+
+			net)
+				case ${catmin} in
+					dialup) type=Dialup;;
+					ftp)    type=FileTransfer;;
+					im)     type=InstantMessaging;;
+					irc)    type=IRCClient;;
+					mail)   type=Email;;
+					news)   type=News;;
+					nntp)   type=News;;
+					p2p)    type=FileTransfer;;
+					voip)   type=Telephony;;
+				esac
+				type="Network;${type}"
+				;;
+
+			sci)
+				case ${catmin} in
+					astro*)  type=Astronomy;;
+					bio*)    type=Biology;;
+					calc*)   type=Calculator;;
+					chem*)   type=Chemistry;;
+					elec*)   type=Electronics;;
+					geo*)    type=Geology;;
+					math*)   type=Math;;
+					physics) type=Physics;;
+					visual*) type=DataVisualization;;
+				esac
+				type="Education;Science;${type}"
+				;;
+
+			sys)
+				type="System"
+				;;
+
+			www)
+				case ${catmin} in
+					client) type=WebBrowser;;
+				esac
+				type="Network;${type}"
+				;;
+
+			*)
+				type=
+				;;
+		esac
+	fi
+	if [ "${SLOT}" == "0" ] ; then
+		local desktop_name="${PN}"
+	else
+		local desktop_name="${PN}-${SLOT}"
+	fi
+	local desktop="${T}/$(echo ${exec} | sed 's:[[:space:]/:]:_:g')-${desktop_name}.desktop"
+	#local desktop=${T}/${exec%% *:-${desktop_name}}.desktop
+
+	# Don't append another ";" when a valid category value is provided.
+	type=${type%;}${type:+;}
+
+	eshopts_push -s extglob
+	if [[ -n ${icon} && ${icon} != /* ]] && [[ ${icon} == *.xpm || ${icon} == *.png || ${icon} == *.svg ]]; then
+		ewarn "As described in the Icon Theme Specification, icon file extensions are not"
+		ewarn "allowed in .desktop files if the value is not an absolute path."
+		icon=${icon%.@(xpm|png|svg)}
+	fi
+	eshopts_pop
+
+	cat <<-EOF > "${desktop}"
+	[Desktop Entry]
+	Name=${name}
+	Type=Application
+	Comment=${DESCRIPTION}
+	Exec=${exec}
+	TryExec=${exec%% *}
+	Icon=${icon}
+	Categories=${type}
+	EOF
+
+	if [[ ${fields:-=} != *=* ]] ; then
+		# 5th arg used to be value to Path=
+		ewarn "make_desktop_entry: update your 5th arg to read Path=${fields}"
+		fields="Path=${fields}"
+	fi
+	[[ -n ${fields} ]] && printf '%b\n' "${fields}" >> "${desktop}"
+
+	(
+		# wrap the env here so that the 'insinto' call
+		# doesn't corrupt the env of the caller
+		insinto /usr/share/applications
+		doins "${desktop}"
+	) || die "installing desktop file failed"
+}
+
+# @FUNCTION: validate_desktop_entries
+# @USAGE: [directories]
+# @MAINTAINER:
+# Carsten Lohrke <carlo@gentoo.org>
+# @DESCRIPTION:
+# Validate desktop entries using desktop-file-utils
+validate_desktop_entries() {
+	if [[ -x /usr/bin/desktop-file-validate ]] ; then
+		einfo "Checking desktop entry validity"
+		local directories=""
+		for d in /usr/share/applications $@ ; do
+			[[ -d ${D}${d} ]] && directories="${directories} ${D}${d}"
+		done
+		if [[ -n ${directories} ]] ; then
+			for FILE in $(find ${directories} -name "*\.desktop" \
+							-not -path '*.hidden*' | sort -u 2>/dev/null)
+			do
+				local temp=$(desktop-file-validate ${FILE} | grep -v "warning:" | \
+								sed -e "s|error: ||" -e "s|${FILE}:|--|g" )
+				[[ -n $temp ]] && elog ${temp/--/${FILE/${D}/}:}
+			done
+		fi
+		echo ""
+	else
+		einfo "Passing desktop entry validity check. Install dev-util/desktop-file-utils, if you want to help to improve Gentoo."
+	fi
+}
+
+# @FUNCTION: make_session_desktop
+# @USAGE: <title> <command> [command args...]
+# @DESCRIPTION:
+# Make a GDM/KDM Session file.  The title is the file to execute to start the
+# Window Manager.  The command is the name of the Window Manager.
+#
+# You can set the name of the file via the ${wm} variable.
+make_session_desktop() {
+	[[ -z $1 ]] && eerror "$0: You must specify the title" && return 1
+	[[ -z $2 ]] && eerror "$0: You must specify the command" && return 1
+
+	local title=$1
+	local command=$2
+	local desktop=${T}/${wm:-${PN}}.desktop
+	shift 2
+
+	cat <<-EOF > "${desktop}"
+	[Desktop Entry]
+	Name=${title}
+	Comment=This session logs you into ${title}
+	Exec=${command} $*
+	TryExec=${command}
+	Type=XSession
+	EOF
+
+	(
+	# wrap the env here so that the 'insinto' call
+	# doesn't corrupt the env of the caller
+	insinto /usr/share/xsessions
+	doins "${desktop}"
+	)
+}
+
+# @FUNCTION: domenu
+# @USAGE: <menus>
+# @DESCRIPTION:
+# Install the list of .desktop menu files into the appropriate directory
+# (/usr/share/applications).
+domenu() {
+	(
+	# wrap the env here so that the 'insinto' call
+	# doesn't corrupt the env of the caller
+	local i j ret=0
+	insinto /usr/share/applications
+	for i in "$@" ; do
+		if [[ -f ${i} ]] ; then
+			doins "${i}"
+			((ret+=$?))
+		elif [[ -d ${i} ]] ; then
+			for j in "${i}"/*.desktop ; do
+				doins "${j}"
+				((ret+=$?))
+			done
+		else
+			((++ret))
+		fi
+	done
+	exit ${ret}
+	)
+}
+
+# @FUNCTION: newmenu
+# @USAGE: <menu> <newname>
+# @DESCRIPTION:
+# Like all other new* functions, install the specified menu as newname.
+newmenu() {
+	(
+	# wrap the env here so that the 'insinto' call
+	# doesn't corrupt the env of the caller
+	insinto /usr/share/applications
+	newins "$@"
+	)
+}
+
+# @FUNCTION: doicon
+# @USAGE: <list of icons>
+# @DESCRIPTION:
+# Install the list of icons into the icon directory (/usr/share/pixmaps).
+# This is useful in conjunction with creating desktop/menu files.
+doicon() {
+	(
+	# wrap the env here so that the 'insinto' call
+	# doesn't corrupt the env of the caller
+	local i j ret
+	insinto /usr/share/pixmaps
+	for i in "$@" ; do
+		if [[ -f ${i} ]] ; then
+			doins "${i}"
+			((ret+=$?))
+		elif [[ -d ${i} ]] ; then
+			for j in "${i}"/*.png ; do
+				doins "${j}"
+				((ret+=$?))
+			done
+		else
+			((++ret))
+		fi
+	done
+	exit ${ret}
+	)
+}
+
+# @FUNCTION: newicon
+# @USAGE: <icon> <newname>
+# @DESCRIPTION:
+# Like all other new* functions, install the specified icon as newname.
+newicon() {
+	(
+	# wrap the env here so that the 'insinto' call
+	# doesn't corrupt the env of the caller
+	insinto /usr/share/pixmaps
+	newins "$@"
+	)
+}
+
+# for internal use only (unpack_pdv and unpack_makeself)
+find_unpackable_file() {
+	local src=$1
+	if [[ -z ${src} ]] ; then
+		src=${DISTDIR}/${A}
+	else
+		if [[ -e ${DISTDIR}/${src} ]] ; then
+			src=${DISTDIR}/${src}
+		elif [[ -e ${PWD}/${src} ]] ; then
+			src=${PWD}/${src}
+		elif [[ -e ${src} ]] ; then
+			src=${src}
+		fi
+	fi
+	[[ ! -e ${src} ]] && return 1
+	echo "${src}"
+}
+
+# @FUNCTION: unpack_pdv
+# @USAGE: <file to unpack> <size of off_t>
+# @DESCRIPTION:
+# Unpack those pesky pdv generated files ...
+# They're self-unpacking programs with the binary package stuffed in
+# the middle of the archive.  Valve seems to use it a lot ... too bad
+# it seems to like to segfault a lot :(.  So lets take it apart ourselves.
+#
+# You have to specify the off_t size ... I have no idea how to extract that
+# information out of the binary executable myself.  Basically you pass in
+# the size of the off_t type (in bytes) on the machine that built the pdv
+# archive.
+#
+# One way to determine this is by running the following commands:
+#
+# @CODE
+# 	strings <pdv archive> | grep lseek
+# 	strace -elseek <pdv archive>
+# @CODE
+#
+# Basically look for the first lseek command (we do the strings/grep because
+# sometimes the function call is _llseek or something) and steal the 2nd
+# parameter.  Here is an example:
+#
+# @CODE
+# 	vapier@vapier 0 pdv_unpack # strings hldsupdatetool.bin | grep lseek
+# 	lseek
+# 	vapier@vapier 0 pdv_unpack # strace -elseek ./hldsupdatetool.bin
+# 	lseek(3, -4, SEEK_END)					= 2981250
+# @CODE
+#
+# Thus we would pass in the value of '4' as the second parameter.
+unpack_pdv() {
+	local src=$(find_unpackable_file "$1")
+	local sizeoff_t=$2
+
+	[[ -z ${src} ]] && die "Could not locate source for '$1'"
+	[[ -z ${sizeoff_t} ]] && die "No idea what off_t size was used for this pdv :("
+
+	local shrtsrc=$(basename "${src}")
+	echo ">>> Unpacking ${shrtsrc} to ${PWD}"
+	local metaskip=$(tail -c ${sizeoff_t} "${src}" | hexdump -e \"%i\")
+	local tailskip=$(tail -c $((${sizeoff_t}*2)) "${src}" | head -c ${sizeoff_t} | hexdump -e \"%i\")
+
+	# grab metadata for debug reasons
+	local metafile=$(emktemp)
+	tail -c +$((${metaskip}+1)) "${src}" > "${metafile}"
+
+	# rip out the final file name from the metadata
+	local datafile=$(tail -c +$((${metaskip}+1)) "${src}" | strings | head -n 1)
+	datafile=$(basename "${datafile}")
+
+	# now lets uncompress/untar the file if need be
+	local tmpfile=$(emktemp)
+	tail -c +$((${tailskip}+1)) ${src} 2>/dev/null | head -c 512 > ${tmpfile}
+
+	local iscompressed=$(file -b "${tmpfile}")
+	if [[ ${iscompressed:0:8} == "compress" ]] ; then
+		iscompressed=1
+		mv ${tmpfile}{,.Z}
+		gunzip ${tmpfile}
+	else
+		iscompressed=0
+	fi
+	local istar=$(file -b "${tmpfile}")
+	if [[ ${istar:0:9} == "POSIX tar" ]] ; then
+		istar=1
+	else
+		istar=0
+	fi
+
+	#for some reason gzip dies with this ... dd cant provide buffer fast enough ?
+	#dd if=${src} ibs=${metaskip} count=1 \
+	#	| dd ibs=${tailskip} skip=1 \
+	#	| gzip -dc \
+	#	> ${datafile}
+	if [ ${iscompressed} -eq 1 ] ; then
+		if [ ${istar} -eq 1 ] ; then
+			tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
+				| head -c $((${metaskip}-${tailskip})) \
+				| tar -xzf -
+		else
+			tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
+				| head -c $((${metaskip}-${tailskip})) \
+				| gzip -dc \
+				> ${datafile}
+		fi
+	else
+		if [ ${istar} -eq 1 ] ; then
+			tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
+				| head -c $((${metaskip}-${tailskip})) \
+				| tar --no-same-owner -xf -
+		else
+			tail -c +$((${tailskip}+1)) ${src} 2>/dev/null \
+				| head -c $((${metaskip}-${tailskip})) \
+				> ${datafile}
+		fi
+	fi
+	true
+	#[ -s "${datafile}" ] || die "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
+	#assert "failure unpacking pdv ('${metaskip}' '${tailskip}' '${datafile}')"
+}
+
+# @FUNCTION: unpack_makeself
+# @USAGE: [file to unpack] [offset] [tail|dd]
+# @DESCRIPTION:
+# Unpack those pesky makeself generated files ...
+# They're shell scripts with the binary package tagged onto
+# the end of the archive.  Loki utilized the format as does
+# many other game companies.
+#
+# If the file is not specified, then ${A} is used.  If the
+# offset is not specified then we will attempt to extract
+# the proper offset from the script itself.
+unpack_makeself() {
+	local src_input=${1:-${A}}
+	local src=$(find_unpackable_file "${src_input}")
+	local skip=$2
+	local exe=$3
+
+	[[ -z ${src} ]] && die "Could not locate source for '${src_input}'"
+
+	local shrtsrc=$(basename "${src}")
+	echo ">>> Unpacking ${shrtsrc} to ${PWD}"
+	if [[ -z ${skip} ]] ; then
+		local ver=$(grep -m1 -a '#.*Makeself' "${src}" | awk '{print $NF}')
+		local skip=0
+		exe=tail
+		case ${ver} in
+			1.5.*|1.6.0-nv)	# tested 1.5.{3,4,5} ... guessing 1.5.x series is same
+				skip=$(grep -a ^skip= "${src}" | cut -d= -f2)
+				;;
+			2.0|2.0.1)
+				skip=$(grep -a ^$'\t'tail "${src}" | awk '{print $2}' | cut -b2-)
+				;;
+			2.1.1)
+				skip=$(grep -a ^offset= "${src}" | awk '{print $2}' | cut -b2-)
+				(( skip++ ))
+				;;
+			2.1.2)
+				skip=$(grep -a ^offset= "${src}" | awk '{print $3}' | head -n 1)
+				(( skip++ ))
+				;;
+			2.1.3)
+				skip=`grep -a ^offset= "${src}" | awk '{print $3}'`
+				(( skip++ ))
+				;;
+			2.1.4|2.1.5)
+				skip=$(grep -a offset=.*head.*wc "${src}" | awk '{print $3}' | head -n 1)
+				skip=$(head -n ${skip} "${src}" | wc -c)
+				exe="dd"
+				;;
+			*)
+				eerror "I'm sorry, but I was unable to support the Makeself file."
+				eerror "The version I detected was '${ver}'."
+				eerror "Please file a bug about the file ${shrtsrc} at"
+				eerror "http://bugs.gentoo.org/ so that support can be added."
+				die "makeself version '${ver}' not supported"
+				;;
+		esac
+		debug-print "Detected Makeself version ${ver} ... using ${skip} as offset"
+	fi
+	case ${exe} in
+		tail)	exe="tail -n +${skip} '${src}'";;
+		dd)		exe="dd ibs=${skip} skip=1 if='${src}'";;
+		*)		die "makeself cant handle exe '${exe}'"
+	esac
+
+	# lets grab the first few bytes of the file to figure out what kind of archive it is
+	local filetype tmpfile=$(emktemp)
+	eval ${exe} 2>/dev/null | head -c 512 > "${tmpfile}"
+	filetype=$(file -b "${tmpfile}") || die
+	case ${filetype} in
+		*tar\ archive*)
+			eval ${exe} | tar --no-same-owner -xf -
+			;;
+		bzip2*)
+			eval ${exe} | bzip2 -dc | tar --no-same-owner -xf -
+			;;
+		gzip*)
+			eval ${exe} | tar --no-same-owner -xzf -
+			;;
+		compress*)
+			eval ${exe} | gunzip | tar --no-same-owner -xf -
+			;;
+		*)
+			eerror "Unknown filetype \"${filetype}\" ?"
+			false
+			;;
+	esac
+	assert "failure unpacking (${filetype}) makeself ${shrtsrc} ('${ver}' +${skip})"
+}
+
+# @FUNCTION: check_license
+# @USAGE: [license]
+# @DESCRIPTION:
+# Display a license for user to accept.  If no license is
+# specified, then ${LICENSE} is used.
+check_license() {
+	local lic=$1
+	if [ -z "${lic}" ] ; then
+		lic="${PORTDIR}/licenses/${LICENSE}"
+	else
+		if [ -e "${PORTDIR}/licenses/${lic}" ] ; then
+			lic="${PORTDIR}/licenses/${lic}"
+		elif [ -e "${PWD}/${lic}" ] ; then
+			lic="${PWD}/${lic}"
+		elif [ -e "${lic}" ] ; then
+			lic="${lic}"
+		fi
+	fi
+	local l="`basename ${lic}`"
+
+	# here is where we check for the licenses the user already
+	# accepted ... if we don't find a match, we make the user accept
+	local alic
+	eshopts_push -o noglob # so that bash doesn't expand "*"
+	for alic in ${ACCEPT_LICENSE} ; do
+		if [[ ${alic} == ${l} ]]; then
+			eshopts_pop
+			return 0
+		fi
+	done
+	eshopts_pop
+	[ ! -f "${lic}" ] && die "Could not find requested license ${lic}"
+
+	local licmsg=$(emktemp)
+	cat <<-EOF > ${licmsg}
+	**********************************************************
+	The following license outlines the terms of use of this
+	package.  You MUST accept this license for installation to
+	continue.  When you are done viewing, hit 'q'.	If you
+	CTRL+C out of this, the install will not run!
+	**********************************************************
+
+	EOF
+	cat ${lic} >> ${licmsg}
+	${PAGER:-less} ${licmsg} || die "Could not execute pager (${PAGER}) to accept ${lic}"
+	einfon "Do you accept the terms of this license (${l})? [yes/no] "
+	read alic
+	case ${alic} in
+		yes|Yes|y|Y)
+			return 0
+			;;
+		*)
+			echo;echo;echo
+			eerror "You MUST accept the license to continue!  Exiting!"
+			die "Failed to accept license"
+			;;
+	esac
+}
+
+# @FUNCTION: cdrom_get_cds
+# @USAGE: <file on cd1> [file on cd2] [file on cd3] [...]
+# @DESCRIPTION:
+# Aquire cd(s) for those lovely cd-based emerges.  Yes, this violates
+# the whole 'non-interactive' policy, but damnit I want CD support !
+#
+# With these cdrom functions we handle all the user interaction and
+# standardize everything.  All you have to do is call cdrom_get_cds()
+# and when the function returns, you can assume that the cd has been
+# found at CDROM_ROOT.
+#
+# The function will attempt to locate a cd based upon a file that is on
+# the cd.  The more files you give this function, the more cds
+# the cdrom functions will handle.
+#
+# Normally the cdrom functions will refer to the cds as 'cd #1', 'cd #2',
+# etc...  If you want to give the cds better names, then just export
+# the appropriate CDROM_NAME variable before calling cdrom_get_cds().
+# Use CDROM_NAME for one cd, or CDROM_NAME_# for multiple cds.  You can
+# also use the CDROM_NAME_SET bash array.
+#
+# For those multi cd ebuilds, see the cdrom_load_next_cd() function.
+cdrom_get_cds() {
+	# first we figure out how many cds we're dealing with by
+	# the # of files they gave us
+	local cdcnt=0
+	local f=
+	for f in "$@" ; do
+		((++cdcnt))
+		export CDROM_CHECK_${cdcnt}="$f"
+	done
+	export CDROM_TOTAL_CDS=${cdcnt}
+	export CDROM_CURRENT_CD=1
+
+	# now we see if the user gave use CD_ROOT ...
+	# if they did, let's just believe them that it's correct
+	if [[ -n ${CD_ROOT}${CD_ROOT_1} ]] ; then
+		local var=
+		cdcnt=0
+		while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
+			((++cdcnt))
+			var="CD_ROOT_${cdcnt}"
+			[[ -z ${!var} ]] && var="CD_ROOT"
+			if [[ -z ${!var} ]] ; then
+				eerror "You must either use just the CD_ROOT"
+				eerror "or specify ALL the CD_ROOT_X variables."
+				eerror "In this case, you will need ${CDROM_TOTAL_CDS} CD_ROOT_X variables."
+				die "could not locate CD_ROOT_${cdcnt}"
+			fi
+		done
+		export CDROM_ROOT=${CD_ROOT_1:-${CD_ROOT}}
+		einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
+		export CDROM_SET=-1
+		for f in ${CDROM_CHECK_1//:/ } ; do
+			((++CDROM_SET))
+			[[ -e ${CDROM_ROOT}/${f} ]] && break
+		done
+		export CDROM_MATCH=${f}
+		return
+	fi
+
+	# User didn't help us out so lets make sure they know they can
+	# simplify the whole process ...
+	if [[ ${CDROM_TOTAL_CDS} -eq 1 ]] ; then
+		einfo "This ebuild will need the ${CDROM_NAME:-cdrom for ${PN}}"
+		echo
+		einfo "If you do not have the CD, but have the data files"
+		einfo "mounted somewhere on your filesystem, just export"
+		einfo "the variable CD_ROOT so that it points to the"
+		einfo "directory containing the files."
+		echo
+		einfo "For example:"
+		einfo "export CD_ROOT=/mnt/cdrom"
+		echo
+	else
+		if [[ -n ${CDROM_NAME_SET} ]] ; then
+			# Translate the CDROM_NAME_SET array into CDROM_NAME_#
+			cdcnt=0
+			while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
+				((++cdcnt))
+				export CDROM_NAME_${cdcnt}="${CDROM_NAME_SET[$((${cdcnt}-1))]}"
+			done
+		fi
+
+		einfo "This package will need access to ${CDROM_TOTAL_CDS} cds."
+		cdcnt=0
+		while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
+			((++cdcnt))
+			var="CDROM_NAME_${cdcnt}"
+			[[ ! -z ${!var} ]] && einfo " CD ${cdcnt}: ${!var}"
+		done
+		echo
+		einfo "If you do not have the CDs, but have the data files"
+		einfo "mounted somewhere on your filesystem, just export"
+		einfo "the following variables so they point to the right place:"
+		einfon ""
+		cdcnt=0
+		while [[ ${cdcnt} -lt ${CDROM_TOTAL_CDS} ]] ; do
+			((++cdcnt))
+			echo -n " CD_ROOT_${cdcnt}"
+		done
+		echo
+		einfo "Or, if you have all the files in the same place, or"
+		einfo "you only have one cdrom, you can export CD_ROOT"
+		einfo "and that place will be used as the same data source"
+		einfo "for all the CDs."
+		echo
+		einfo "For example:"
+		einfo "export CD_ROOT_1=/mnt/cdrom"
+		echo
+	fi
+
+	export CDROM_SET=""
+	export CDROM_CURRENT_CD=0
+	cdrom_load_next_cd
+}
+
+# @FUNCTION: cdrom_load_next_cd
+# @DESCRIPTION:
+# Some packages are so big they come on multiple CDs.  When you're done reading
+# files off a CD and want access to the next one, just call this function.
+# Again, all the messy details of user interaction are taken care of for you.
+# Once this returns, just read the variable CDROM_ROOT for the location of the
+# mounted CD.  Note that you can only go forward in the CD list, so make sure
+# you only call this function when you're done using the current CD.
+cdrom_load_next_cd() {
+	local var
+	((++CDROM_CURRENT_CD))
+
+	unset CDROM_ROOT
+	var=CD_ROOT_${CDROM_CURRENT_CD}
+	[[ -z ${!var} ]] && var="CD_ROOT"
+	if [[ -z ${!var} ]] ; then
+		var="CDROM_CHECK_${CDROM_CURRENT_CD}"
+		_cdrom_locate_file_on_cd ${!var}
+	else
+		export CDROM_ROOT=${!var}
+	fi
+
+	einfo "Found CD #${CDROM_CURRENT_CD} root at ${CDROM_ROOT}"
+}
+
+# this is used internally by the cdrom_get_cds() and cdrom_load_next_cd()
+# functions.  this should *never* be called from an ebuild.
+# all it does is try to locate a give file on a cd ... if the cd isn't
+# found, then a message asking for the user to insert the cdrom will be
+# displayed and we'll hang out here until:
+# (1) the file is found on a mounted cdrom
+# (2) the user hits CTRL+C
+_cdrom_locate_file_on_cd() {
+	local mline=""
+	local showedmsg=0 showjolietmsg=0
+
+	while [[ -z ${CDROM_ROOT} ]] ; do
+		local i=0
+		local -a cdset=(${*//:/ })
+		if [[ -n ${CDROM_SET} ]] ; then
+			cdset=(${cdset[${CDROM_SET}]})
+		fi
+
+		while [[ -n ${cdset[${i}]} ]] ; do
+			local dir=$(dirname ${cdset[${i}]})
+			local file=$(basename ${cdset[${i}]})
+
+			local point= node= fs= foo=
+			while read point node fs foo ; do
+				[[ " cd9660 iso9660 udf " != *" ${fs} "* ]] && \
+					! [[ ${fs} == "subfs" && ",${opts}," == *",fs=cdfss,"* ]] \
+					&& continue
+				point=${point//\040/ }
+				[[ ! -d ${point}/${dir} ]] && continue
+				[[ -z $(find "${point}/${dir}" -maxdepth 1 -iname "${file}") ]] && continue
+				export CDROM_ROOT=${point}
+				export CDROM_SET=${i}
+				export CDROM_MATCH=${cdset[${i}]}
+				return
+			done <<< "$(get_mounts)"
+
+			((++i))
+		done
+
+		echo
+		if [[ ${showedmsg} -eq 0 ]] ; then
+			if [[ ${CDROM_TOTAL_CDS} -eq 1 ]] ; then
+				if [[ -z ${CDROM_NAME} ]] ; then
+					einfo "Please insert+mount the cdrom for ${PN} now !"
+				else
+					einfo "Please insert+mount the ${CDROM_NAME} cdrom now !"
+				fi
+			else
+				if [[ -z ${CDROM_NAME_1} ]] ; then
+					einfo "Please insert+mount cd #${CDROM_CURRENT_CD} for ${PN} now !"
+				else
+					local var="CDROM_NAME_${CDROM_CURRENT_CD}"
+					einfo "Please insert+mount the ${!var} cdrom now !"
+				fi
+			fi
+			showedmsg=1
+		fi
+		einfo "Press return to scan for the cd again"
+		einfo "or hit CTRL+C to abort the emerge."
+		echo
+		if [[ ${showjolietmsg} -eq 0 ]] ; then
+			showjolietmsg=1
+		else
+			ewarn "If you are having trouble with the detection"
+			ewarn "of your CD, it is possible that you do not have"
+			ewarn "Joliet support enabled in your kernel.  Please"
+			ewarn "check that CONFIG_JOLIET is enabled in your kernel."
+			ebeep 5
+		fi
+		read || die "something is screwed with your system"
+	done
+}
+
+# @FUNCTION: strip-linguas
+# @USAGE: [<allow LINGUAS>|<-i|-u> <directories of .po files>]
+# @DESCRIPTION:
+# Make sure that LINGUAS only contains languages that
+# a package can support.  The first form allows you to
+# specify a list of LINGUAS.  The -i builds a list of po
+# files found in all the directories and uses the
+# intersection of the lists.  The -u builds a list of po
+# files found in all the directories and uses the union
+# of the lists.
+strip-linguas() {
+	local ls newls nols
+	if [[ $1 == "-i" ]] || [[ $1 == "-u" ]] ; then
+		local op=$1; shift
+		ls=$(find "$1" -name '*.po' -exec basename {} .po ';'); shift
+		local d f
+		for d in "$@" ; do
+			if [[ ${op} == "-u" ]] ; then
+				newls=${ls}
+			else
+				newls=""
+			fi
+			for f in $(find "$d" -name '*.po' -exec basename {} .po ';') ; do
+				if [[ ${op} == "-i" ]] ; then
+					has ${f} ${ls} && newls="${newls} ${f}"
+				else
+					has ${f} ${ls} || newls="${newls} ${f}"
+				fi
+			done
+			ls=${newls}
+		done
+	else
+		ls="$@"
+	fi
+
+	nols=""
+	newls=""
+	for f in ${LINGUAS} ; do
+		if has ${f} ${ls} ; then
+			newls="${newls} ${f}"
+		else
+			nols="${nols} ${f}"
+		fi
+	done
+	[[ -n ${nols} ]] \
+		&& ewarn "Sorry, but ${PN} does not support the LINGUAS:" ${nols}
+	export LINGUAS=${newls:1}
+}
+
+# @FUNCTION: preserve_old_lib
+# @USAGE: <libs to preserve> [more libs]
+# @DESCRIPTION:
+# These functions are useful when a lib in your package changes ABI SONAME.
+# An example might be from libogg.so.0 to libogg.so.1.  Removing libogg.so.0
+# would break packages that link against it.  Most people get around this
+# by using the portage SLOT mechanism, but that is not always a relevant
+# solution, so instead you can call this from pkg_preinst.  See also the
+# preserve_old_lib_notify function.
+preserve_old_lib() {
+	if [[ ${EBUILD_PHASE} != "preinst" ]] ; then
+		eerror "preserve_old_lib() must be called from pkg_preinst() only"
+		die "Invalid preserve_old_lib() usage"
+	fi
+	[[ -z $1 ]] && die "Usage: preserve_old_lib <library to preserve> [more libraries to preserve]"
+
+	# let portage worry about it
+	has preserve-libs ${FEATURES} && return 0
+
+	local lib dir
+	for lib in "$@" ; do
+		[[ -e ${ROOT}/${lib} ]] || continue
+		dir=${lib%/*}
+		dodir ${dir} || die "dodir ${dir} failed"
+		cp "${ROOT}"/${lib} "${D}"/${lib} || die "cp ${lib} failed"
+		touch "${D}"/${lib}
+	done
+}
+
+# @FUNCTION: preserve_old_lib_notify
+# @USAGE: <libs to notify> [more libs]
+# @DESCRIPTION:
+# Spit helpful messages about the libraries preserved by preserve_old_lib.
+preserve_old_lib_notify() {
+	if [[ ${EBUILD_PHASE} != "postinst" ]] ; then
+		eerror "preserve_old_lib_notify() must be called from pkg_postinst() only"
+		die "Invalid preserve_old_lib_notify() usage"
+	fi
+
+	# let portage worry about it
+	has preserve-libs ${FEATURES} && return 0
+
+	local lib notice=0
+	for lib in "$@" ; do
+		[[ -e ${ROOT}/${lib} ]] || continue
+		if [[ ${notice} -eq 0 ]] ; then
+			notice=1
+			ewarn "Old versions of installed libraries were detected on your system."
+			ewarn "In order to avoid breaking packages that depend on these old libs,"
+			ewarn "the libraries are not being removed.  You need to run revdep-rebuild"
+			ewarn "in order to remove these old dependencies.  If you do not have this"
+			ewarn "helper program, simply emerge the 'gentoolkit' package."
+			ewarn
+		fi
+		# temp hack for #348634 #357225
+		[[ ${PN} == "mpfr" ]] && lib=${lib##*/}
+		ewarn "  # revdep-rebuild --library '${lib}'"
+	done
+	if [[ ${notice} -eq 1 ]] ; then
+		ewarn
+		ewarn "Once you've finished running revdep-rebuild, it should be safe to"
+		ewarn "delete the old libraries.  Here is a copy & paste for the lazy:"
+		for lib in "$@" ; do
+			ewarn "  # rm '${lib}'"
+		done
+	fi
+}
+
+# @FUNCTION: built_with_use
+# @USAGE: [--hidden] [--missing <action>] [-a|-o] <DEPEND ATOM> <List of USE flags>
+# @DESCRIPTION:
+#
+# Deprecated: Use EAPI 2 use deps in DEPEND|RDEPEND and with has_version calls.
+#
+# A temporary hack until portage properly supports DEPENDing on USE
+# flags being enabled in packages.  This will check to see if the specified
+# DEPEND atom was built with the specified list of USE flags.  The
+# --missing option controls the behavior if called on a package that does
+# not actually support the defined USE flags (aka listed in IUSE).
+# The default is to abort (call die).  The -a and -o flags control
+# the requirements of the USE flags.  They correspond to "and" and "or"
+# logic.  So the -a flag means all listed USE flags must be enabled
+# while the -o flag means at least one of the listed IUSE flags must be
+# enabled.  The --hidden option is really for internal use only as it
+# means the USE flag we're checking is hidden expanded, so it won't be found
+# in IUSE like normal USE flags.
+#
+# Remember that this function isn't terribly intelligent so order of optional
+# flags matter.
+built_with_use() {
+	local hidden="no"
+	if [[ $1 == "--hidden" ]] ; then
+		hidden="yes"
+		shift
+	fi
+
+	local missing_action="die"
+	if [[ $1 == "--missing" ]] ; then
+		missing_action=$2
+		shift ; shift
+		case ${missing_action} in
+			true|false|die) ;;
+			*) die "unknown action '${missing_action}'";;
+		esac
+	fi
+
+	local opt=$1
+	[[ ${opt:0:1} = "-" ]] && shift || opt="-a"
+
+	local PKG=$(best_version $1)
+	[[ -z ${PKG} ]] && die "Unable to resolve $1 to an installed package"
+	shift
+
+	local USEFILE=${ROOT}/var/db/pkg/${PKG}/USE
+	local IUSEFILE=${ROOT}/var/db/pkg/${PKG}/IUSE
+
+	# if the IUSE file doesn't exist, the read will error out, we need to handle
+	# this gracefully
+	if [[ ! -e ${USEFILE} ]] || [[ ! -e ${IUSEFILE} && ${hidden} == "no" ]] ; then
+		case ${missing_action} in
+			true)	return 0;;
+			false)	return 1;;
+			die)	die "Unable to determine what USE flags $PKG was built with";;
+		esac
+	fi
+
+	if [[ ${hidden} == "no" ]] ; then
+		local IUSE_BUILT=( $(<"${IUSEFILE}") )
+		# Don't check USE_EXPAND #147237
+		local expand
+		for expand in $(echo ${USE_EXPAND} | tr '[:upper:]' '[:lower:]') ; do
+			if [[ $1 == ${expand}_* ]] ; then
+				expand=""
+				break
+			fi
+		done
+		if [[ -n ${expand} ]] ; then
+			if ! has $1 ${IUSE_BUILT[@]#[-+]} ; then
+				case ${missing_action} in
+					true)  return 0;;
+					false) return 1;;
+					die)   die "$PKG does not actually support the $1 USE flag!";;
+				esac
+			fi
+		fi
+	fi
+
+	local USE_BUILT=$(<${USEFILE})
+	while [[ $# -gt 0 ]] ; do
+		if [[ ${opt} = "-o" ]] ; then
+			has $1 ${USE_BUILT} && return 0
+		else
+			has $1 ${USE_BUILT} || return 1
+		fi
+		shift
+	done
+	[[ ${opt} = "-a" ]]
+}
+
+# @FUNCTION: epunt_cxx
+# @USAGE: [dir to scan]
+# @DESCRIPTION:
+# Many configure scripts wrongly bail when a C++ compiler could not be
+# detected.  If dir is not specified, then it defaults to ${S}.
+#
+# http://bugs.gentoo.org/73450
+epunt_cxx() {
+	local dir=$1
+	[[ -z ${dir} ]] && dir=${S}
+	ebegin "Removing useless C++ checks"
+	local f
+	find "${dir}" -name configure | while read f ; do
+		patch --no-backup-if-mismatch -p0 "${f}" "${PORTDIR}/eclass/ELT-patches/nocxx/nocxx.patch" > /dev/null
+	done
+	eend 0
+}
+
+# @FUNCTION: make_wrapper
+# @USAGE: <wrapper> <target> [chdir] [libpaths] [installpath]
+# @DESCRIPTION:
+# Create a shell wrapper script named wrapper in installpath
+# (defaults to the bindir) to execute target (default of wrapper) by
+# first optionally setting LD_LIBRARY_PATH to the colon-delimited
+# libpaths followed by optionally changing directory to chdir.
+make_wrapper() {
+	local wrapper=$1 bin=$2 chdir=$3 libdir=$4 path=$5
+	local tmpwrapper=$(emktemp)
+	# We don't want to quote ${bin} so that people can pass complex
+	# things as $bin ... "./someprog --args"
+	cat << EOF > "${tmpwrapper}"
+#!/bin/sh
+cd "${chdir:-.}"
+if [ -n "${libdir}" ] ; then
+	if [ "\${LD_LIBRARY_PATH+set}" = "set" ] ; then
+		export LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}:${libdir}"
+	else
+		export LD_LIBRARY_PATH="${libdir}"
+	fi
+fi
+exec ${bin} "\$@"
+EOF
+	chmod go+rx "${tmpwrapper}"
+	if [[ -n ${path} ]] ; then
+		(
+		exeinto "${path}"
+		newexe "${tmpwrapper}" "${wrapper}"
+		) || die
+	else
+		newbin "${tmpwrapper}" "${wrapper}" || die
+	fi
+}
+
+# @FUNCTION: path_exists
+# @USAGE: [-a|-o] <paths>
+# @DESCRIPTION:
+# Check if the specified paths exist.  Works for all types of paths
+# (files/dirs/etc...).  The -a and -o flags control the requirements
+# of the paths.  They correspond to "and" and "or" logic.  So the -a
+# flag means all the paths must exist while the -o flag means at least
+# one of the paths must exist.  The default behavior is "and".  If no
+# paths are specified, then the return value is "false".
+path_exists() {
+	local opt=$1
+	[[ ${opt} == -[ao] ]] && shift || opt="-a"
+
+	# no paths -> return false
+	# same behavior as: [[ -e "" ]]
+	[[ $# -eq 0 ]] && return 1
+
+	local p r=0
+	for p in "$@" ; do
+		[[ -e ${p} ]]
+		: $(( r += $? ))
+	done
+
+	case ${opt} in
+		-a) return $(( r != 0 )) ;;
+		-o) return $(( r == $# )) ;;
+	esac
+}
+
+# @FUNCTION: in_iuse
+# @USAGE: <flag>
+# @DESCRIPTION:
+# Determines whether the given flag is in IUSE. Strips IUSE default prefixes
+# as necessary.
+#
+# Note that this function should not be used in the global scope.
+in_iuse() {
+	debug-print-function ${FUNCNAME} "${@}"
+	[[ ${#} -eq 1 ]] || die "Invalid args to ${FUNCNAME}()"
+
+	local flag=${1}
+	local liuse=( ${IUSE} )
+
+	has "${flag}" "${liuse[@]#[+-]}"
+}
+
+# @FUNCTION: use_if_iuse
+# @USAGE: <flag>
+# @DESCRIPTION:
+# Return true if the given flag is in USE and IUSE.
+#
+# Note that this function should not be used in the global scope.
+use_if_iuse() {
+	in_iuse $1 || return 1
+	use $1
+}
+
+# @FUNCTION: usex
+# @USAGE: <USE flag> [true output] [false output] [true suffix] [false suffix]
+# @DESCRIPTION:
+# If USE flag is set, echo [true output][true suffix] (defaults to "yes"),
+# otherwise echo [false output][false suffix] (defaults to "no").
+usex() { use "$1" && echo "${2-yes}$4" || echo "${3-no}$5" ; } #382963