1 files changed, 557 insertions, 0 deletions
diff --git a/eclass/kde4-functions.eclass b/eclass/kde4-functions.eclass
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+# Copyright 1999-2008 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/kde4-functions.eclass,v 1.4 2008/03/13 17:57:51 ingmar Exp $
+
+# @ECLASS: kde4-functions.eclass
+# @MAINTAINER:
+# kde@gentoo.org
+# @BLURB: Common ebuild functions for monolithic and split KDE 4 packages
+# @DESCRIPTION:
+# This eclass contains all functions shared by the different eclasses,
+# for KDE 4 monolithic and split ebuilds.
+#
+# NOTE: This eclass uses the SLOT dependencies from EAPI="1" or compatible,
+# hence you must define EAPI="1" in the ebuild, before inheriting any eclasses.
+
+# @ECLASS-VARIABLE: KDEBASE
+# @DESCRIPTION:
+# This gets set to a non-zero value when a package is considered a kde or
+# koffice ebuild.
+
+if [[ "${CATEGORY}" == "kde-base" ]]; then
+	debug-print "${ECLASS}: KDEBASE ebuild recognized"
+	KDEBASE="kde-base"
+fi
+
+# is this a koffice ebuild?
+if [[ "${KMNAME}" == "koffice" || "${PN}" == "koffice" ]]; then
+	debug-print "${ECLASS}: KOFFICE ebuild recognized"
+	KDEBASE="koffice"
+fi
+
+# @ECLASS-VARIABLE: KDE_SLOTS
+# @DESCRIPTION:
+# The slots used by all KDE versions after 4.0 - this doesn't include kde-3.5 and the
+# live-ebuilds that use the following var.
+KDE_SLOTS=( "kde-4" "4.1" )
+
+# @ECLASS-VARIABLE: KDE_LIVE_SLOTS
+# @DESCRIPTION:
+# The slots used by all KDE live versions.
+KDE_LIVE_SLOTS=( "kde-svn" )
+
+# @ECLASS-VARIABLE: KDE_DERIVATION_MAP
+# @DESCRIPTION:
+# Map of the monolithic->split ebuild derivation.
+# Used to build dependencies describing the relationships between them:
+# Monolithic ebuilds block their split counterparts in the same slot, and vice versa.
+#
+# Also see get-parent-package(), get-child-packages(), is-parent-package()
+KDE_DERIVATION_MAP='
+app-office/koffice app-office/karbon
+app-office/koffice app-office/kchart
+app-office/koffice app-office/kexi
+app-office/koffice app-office/kformula
+app-office/koffice app-office/kivio
+app-office/koffice app-office/koffice-data
+app-office/koffice app-office/koffice-libs
+app-office/koffice app-office/koshell
+app-office/koffice app-office/kplato
+app-office/koffice app-office/kpresenter
+app-office/koffice app-office/krita
+app-office/koffice app-office/kspread
+app-office/koffice app-office/kugar
+app-office/koffice app-office/kword
+kde-base/kdeaccessibility kde-base/kdeaccessibility-colorschemes
+kde-base/kdeaccessibility kde-base/kdeaccessibility-iconthemes
+kde-base/kdeaccessibility kde-base/kmag
+kde-base/kdeaccessibility kde-base/kmousetool
+kde-base/kdeaccessibility kde-base/kmouth
+kde-base/kdeaccessibility kde-base/kttsd
+kde-base/kdeadmin kde-base/kcron
+kde-base/kdeadmin kde-base/kdat
+kde-base/kdeadmin kde-base/knetworkconf
+kde-base/kdeadmin kde-base/kpackage
+kde-base/kdeadmin kde-base/ksystemlog
+kde-base/kdeadmin kde-base/ksysv
+kde-base/kdeadmin kde-base/kuser
+kde-base/kdeadmin kde-base/lilo-config
+kde-base/kdeadmin kde-base/secpolicy
+kde-base/kdeartwork kde-base/kdeartwork-colorschemes
+kde-base/kdeartwork kde-base/kdeartwork-emoticons
+kde-base/kdeartwork kde-base/kdeartwork-icewm-themes
+kde-base/kdeartwork kde-base/kdeartwork-iconthemes
+kde-base/kdeartwork kde-base/kdeartwork-kscreensaver
+kde-base/kdeartwork kde-base/kdeartwork-kworldclock
+kde-base/kdeartwork kde-base/kdeartwork-sounds
+kde-base/kdeartwork kde-base/kdeartwork-styles
+kde-base/kdeartwork kde-base/kdeartwork-wallpapers
+kde-base/kdebase kde-base/dolphin
+kde-base/kdebase kde-base/drkonqi
+kde-base/kdebase kde-base/kappfinder
+kde-base/kdebase kde-base/kcheckpass
+kde-base/kdebase kde-base/kcminit
+kde-base/kdebase kde-base/kcmshell
+kde-base/kdebase kde-base/kcontrol
+kde-base/kdebase kde-base/kde-menu
+kde-base/kdebase kde-base/kde-menu-icons
+kde-base/kdebase kde-base/kde-wallpapers
+kde-base/kdebase kde-base/kdebase-cursors
+kde-base/kdebase kde-base/kdebase-data
+kde-base/kdebase kde-base/kdebase-kioslaves
+kde-base/kdebase kde-base/kdebase-startkde
+kde-base/kdebase kde-base/kdebugdialog
+kde-base/kdebase kde-base/kdepasswd
+kde-base/kdebase kde-base/kdesu
+kde-base/kdebase kde-base/kdialog
+kde-base/kdebase kde-base/kdm
+kde-base/kdebase kde-base/keditbookmarks
+kde-base/kdebase kde-base/kfile
+kde-base/kdebase kde-base/kfind
+kde-base/kdebase kde-base/khelpcenter
+kde-base/kdebase kde-base/khotkeys
+kde-base/kdebase kde-base/kiconfinder
+kde-base/kdebase kde-base/kinfocenter
+kde-base/kdebase kde-base/kioclient
+kde-base/kdebase kde-base/klipper
+kde-base/kdebase kde-base/kmenuedit
+kde-base/kdebase kde-base/kmimetypefinder
+kde-base/kdebase kde-base/knetattach
+kde-base/kdebase kde-base/knewstuff
+kde-base/kdebase kde-base/knotify
+kde-base/kdebase kde-base/konqueror
+kde-base/kdebase kde-base/konsole
+kde-base/kdebase kde-base/kpasswdserver
+kde-base/kdebase kde-base/kquitapp
+kde-base/kdebase kde-base/kreadconfig
+kde-base/kdebase kde-base/krunner
+kde-base/kdebase kde-base/kscreensaver
+kde-base/kdebase kde-base/ksmserver
+kde-base/kdebase kde-base/ksplash
+kde-base/kdebase kde-base/kstart
+kde-base/kdebase kde-base/kstartupconfig
+kde-base/kdebase kde-base/kstyles
+kde-base/kdebase kde-base/ksysguard
+kde-base/kdebase kde-base/ksystraycmd
+kde-base/kdebase kde-base/ktimezoned
+kde-base/kdebase kde-base/ktip
+kde-base/kdebase kde-base/ktraderclient
+kde-base/kdebase kde-base/kuiserver
+kde-base/kdebase kde-base/kurifilter-plugins
+kde-base/kdebase kde-base/kwin
+kde-base/kdebase kde-base/kwrite
+kde-base/kdebase kde-base/libkonq
+kde-base/kdebase kde-base/libkworkspace
+kde-base/kdebase kde-base/libplasma
+kde-base/kdebase kde-base/libtaskmanager
+kde-base/kdebase kde-base/nepomuk
+kde-base/kdebase kde-base/nsplugins
+kde-base/kdebase kde-base/phonon
+kde-base/kdebase kde-base/phonon-xine
+kde-base/kdebase kde-base/plasma
+kde-base/kdebase kde-base/plasma-apps
+kde-base/kdebase kde-base/plasma-workspace
+kde-base/kdebase kde-base/renamedlg-plugins
+kde-base/kdebase kde-base/solid
+kde-base/kdebase kde-base/solid-hardware
+kde-base/kdebase kde-base/soliduiserver
+kde-base/kdebase kde-base/systemsettings
+kde-base/kdebindings kde-base/kalyptus
+kde-base/kdebindings kde-base/kdejava
+kde-base/kdebindings kde-base/kimono
+kde-base/kdebindings kde-base/kjsembed
+kde-base/kdebindings kde-base/korundum
+kde-base/kdebindings kde-base/krossjava
+kde-base/kdebindings kde-base/krosspython
+kde-base/kdebindings kde-base/krossruby
+kde-base/kdebindings kde-base/pykde4
+kde-base/kdebindings kde-base/qtjava
+kde-base/kdebindings kde-base/qtruby
+kde-base/kdebindings kde-base/qtsharp
+kde-base/kdebindings kde-base/qyoto
+kde-base/kdebindings kde-base/smoke
+kde-base/kdebindings kde-base/xparts
+kde-base/kdeedu kde-base/blinken
+kde-base/kdeedu kde-base/kalgebra
+kde-base/kdeedu kde-base/kalzium
+kde-base/kdeedu kde-base/kanagram
+kde-base/kdeedu kde-base/kbruch
+kde-base/kdeedu kde-base/kgeography
+kde-base/kdeedu kde-base/khangman
+kde-base/kdeedu kde-base/kig
+kde-base/kdeedu kde-base/kiten
+kde-base/kdeedu kde-base/klettres
+kde-base/kdeedu kde-base/kmplot
+kde-base/kdeedu kde-base/kpercentage
+kde-base/kdeedu kde-base/kstars
+kde-base/kdeedu kde-base/ktouch
+kde-base/kdeedu kde-base/kturtle
+kde-base/kdeedu kde-base/kwordquiz
+kde-base/kdeedu kde-base/libkdeedu
+kde-base/kdeedu kde-base/marble
+kde-base/kdeedu kde-base/parley
+kde-base/kdeedu kde-base/step
+kde-base/kdegames kde-base/bovo
+kde-base/kdegames kde-base/katomic
+kde-base/kdegames kde-base/kbattleship
+kde-base/kdegames kde-base/kblackbox
+kde-base/kdegames kde-base/kblocks
+kde-base/kdegames kde-base/kbounce
+kde-base/kdegames kde-base/kbreakout
+kde-base/kdegames kde-base/kdiamond
+kde-base/kdegames kde-base/kfourinline
+kde-base/kdegames kde-base/kgoldrunner
+kde-base/kdegames kde-base/kiriki
+kde-base/kdegames kde-base/kjumpingcube
+kde-base/kdegames kde-base/klines
+kde-base/kdegames kde-base/kmahjongg
+kde-base/kdegames kde-base/kmines
+kde-base/kdegames kde-base/knetwalk
+kde-base/kdegames kde-base/kolf
+kde-base/kdegames kde-base/kollision
+kde-base/kdegames kde-base/konquest
+kde-base/kdegames kde-base/kpat
+kde-base/kdegames kde-base/kreversi
+kde-base/kdegames kde-base/ksame
+kde-base/kdegames kde-base/kshisen
+kde-base/kdegames kde-base/ksirk
+kde-base/kdegames kde-base/kspaceduel
+kde-base/kdegames kde-base/ksquares
+kde-base/kdegames kde-base/ksudoku
+kde-base/kdegames kde-base/ktuberling
+kde-base/kdegames kde-base/kubrick
+kde-base/kdegames kde-base/libkdegames
+kde-base/kdegames kde-base/libkmahjongg
+kde-base/kdegames kde-base/lskat
+kde-base/kdegraphics kde-base/gwenview
+kde-base/kdegraphics kde-base/kamera
+kde-base/kdegraphics kde-base/kcolorchooser
+kde-base/kdegraphics kde-base/kdegraphics-strigi-analyzer
+kde-base/kdegraphics kde-base/kgamma
+kde-base/kdegraphics kde-base/kghostview
+kde-base/kdegraphics kde-base/kolourpaint
+kde-base/kdegraphics kde-base/kruler
+kde-base/kdegraphics kde-base/ksaneplugin
+kde-base/kdegraphics kde-base/ksnapshot
+kde-base/kdegraphics kde-base/libkdcraw
+kde-base/kdegraphics kde-base/libkexiv2
+kde-base/kdegraphics kde-base/libkipi
+kde-base/kdegraphics kde-base/libksane
+kde-base/kdegraphics kde-base/libkscan
+kde-base/kdegraphics kde-base/okular
+kde-base/kdegraphics kde-base/svgpart
+kde-base/kdemultimedia kde-base/dragonplayer
+kde-base/kdemultimedia kde-base/juk
+kde-base/kdemultimedia kde-base/kdemultimedia-kioslaves
+kde-base/kdemultimedia kde-base/kdemultimedia-strigi-analyzer
+kde-base/kdemultimedia kde-base/kmix
+kde-base/kdemultimedia kde-base/kscd
+kde-base/kdemultimedia kde-base/libkcddb
+kde-base/kdemultimedia kde-base/libkcompactdisc
+kde-base/kdenetwork kde-base/kdenetwork-filesharing
+kde-base/kdenetwork kde-base/kdnssd
+kde-base/kdenetwork kde-base/kget
+kde-base/kdenetwork kde-base/knewsticker
+kde-base/kdenetwork kde-base/kopete
+kde-base/kdenetwork kde-base/kppp
+kde-base/kdenetwork kde-base/krdc
+kde-base/kdenetwork kde-base/krfb
+kde-base/kdepim kde-base/akonadi
+kde-base/kdepim kde-base/akregator
+kde-base/kdepim kde-base/certmanager
+kde-base/kdepim kde-base/kabc2mutt
+kde-base/kdepim kde-base/kabcclient
+kde-base/kdepim kde-base/kaddressbook
+kde-base/kdepim kde-base/kalarm
+kde-base/kdepim kde-base/kdemaildir
+kde-base/kdepim kde-base/kdepim-icons
+kde-base/kdepim kde-base/kdepim-kioslaves
+kde-base/kdepim kde-base/kdepim-kresources
+kde-base/kdepim kde-base/kdepim-strigi-analyzer
+kde-base/kdepim kde-base/kdepim-wizards
+kde-base/kdepim kde-base/kfeed
+kde-base/kdepim kde-base/kitchensync
+kde-base/kdepim kde-base/kjots
+kde-base/kdepim kde-base/kleopatra
+kde-base/kdepim kde-base/kmail
+kde-base/kdepim kde-base/kmailcvt
+kde-base/kdepim kde-base/kmobiletools
+kde-base/kdepim kde-base/knode
+kde-base/kdepim kde-base/knotes
+kde-base/kdepim kde-base/kode
+kde-base/kdepim kde-base/konsolekalendar
+kde-base/kdepim kde-base/kontact
+kde-base/kdepim kde-base/kontact-specialdates
+kde-base/kdepim kde-base/kontactinterfaces
+kde-base/kdepim kde-base/korganizer
+kde-base/kdepim kde-base/korn
+kde-base/kdepim kde-base/kpilot
+kde-base/kdepim kde-base/ktimetracker
+kde-base/kdepim kde-base/ktnef
+kde-base/kdepim kde-base/libkdepim
+kde-base/kdepim kde-base/libkholidays
+kde-base/kdepim kde-base/libkleo
+kde-base/kdepim kde-base/libkpgp
+kde-base/kdepim kde-base/libksieve
+kde-base/kdepim kde-base/mailtransport
+kde-base/kdepim kde-base/mimelib
+kde-base/kdepim kde-base/networkstatus
+kde-base/kdesdk kde-base/cervisia
+kde-base/kdesdk kde-base/kapptemplate
+kde-base/kdesdk kde-base/kate
+kde-base/kdesdk kde-base/kbabel
+kde-base/kdesdk kde-base/kbugbuster
+kde-base/kdesdk kde-base/kcachegrind
+kde-base/kdesdk kde-base/kdeaccounts-plugin
+kde-base/kdesdk kde-base/kdesdk-kioslaves
+kde-base/kdesdk kde-base/kdesdk-misc
+kde-base/kdesdk kde-base/kdesdk-scripts
+kde-base/kdesdk kde-base/kdesdk-strigi-analyzer
+kde-base/kdesdk kde-base/kmtrace
+kde-base/kdesdk kde-base/kompare
+kde-base/kdesdk kde-base/kspy
+kde-base/kdesdk kde-base/kstartperf
+kde-base/kdesdk kde-base/kuiviewer
+kde-base/kdesdk kde-base/lokalize
+kde-base/kdesdk kde-base/poxml
+kde-base/kdesdk kde-base/strigi-analyzer
+kde-base/kdesdk kde-base/umbrello
+kde-base/kdetoys kde-base/amor
+kde-base/kdetoys kde-base/kteatime
+kde-base/kdetoys kde-base/ktux
+kde-base/kdetoys kde-base/kweather
+kde-base/kdetoys kde-base/kworldclock
+kde-base/kdeutils kde-base/ark
+kde-base/kdeutils kde-base/kcalc
+kde-base/kdeutils kde-base/kcharselect
+kde-base/kdeutils kde-base/kdessh
+kde-base/kdeutils kde-base/kdf
+kde-base/kdeutils kde-base/kfloppy
+kde-base/kdeutils kde-base/kgpg
+kde-base/kdeutils kde-base/kmilo
+kde-base/kdeutils kde-base/kregexpeditor
+kde-base/kdeutils kde-base/ktimer
+kde-base/kdeutils kde-base/kwallet
+kde-base/kdeutils kde-base/okteta
+kde-base/kdeutils kde-base/superkaramba
+kde-base/kdeutils kde-base/sweeper
+kde-base/kdewebdev kde-base/kfilereplace
+kde-base/kdewebdev kde-base/kimagemapeditor
+kde-base/kdewebdev kde-base/klinkstatus
+kde-base/kdewebdev kde-base/kxsldbg
+kde-base/kdewebdev kde-base/quanta
+'
+
+# @FUNCTION: get-parent-package
+# @USAGE: <split ebuild>
+# @DESCRIPTION:
+# Echoes the name of the monolithic package that a given split ebuild was derived from.
+get-parent-package() {
+	local parent child
+	while read parent child; do
+		if [[ "${child}" == "$1" ]]; then
+			echo ${parent}
+			return 0
+		fi
+	done <<< "$KDE_DERIVATION_MAP"
+	die "Package $target not found in KDE_DERIVATION_MAP, please report bug"
+}
+
+# @FUNCTION: get-child-packages
+# @USAGE: <monolithic ebuild>
+# @DESCRIPTION:
+# Echoes the names of all (split) ebuilds derived from a given monolithic ebuild.
+get-child-packages() {
+	local parent child
+	while read parent child; do
+		[[ "${parent}" == "$1" ]] && echo -n "${child} "
+	done <<< "$KDE_DERIVATION_MAP"
+}
+
+# @FUNCTION: is-parent-package
+# @USAGE: <$CATEGORY/$PN>
+# @DESCRIPTION:
+# Returns zero exit-status if the given package is a parent (monolithic) ebuild.
+# Returns non-zero exit-status if it's not.
+is-parent-package() {
+	local parent child
+	while read parent child; do
+		[[ "${parent}" == "$1" ]] && return 0
+	done <<< "$KDE_DERIVATION_MAP"
+	return 1
+}
+
+# @FUNCTION: buildsycoca
+# @DESCRIPTION:
+# Function to rebuild the KDE System Configuration Cache.
+# All KDE ebuilds should run this in pkg_postinst and pkg_postrm.
+#
+# Note that kde4-base.eclass already does this.
+buildsycoca() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	if [[ -x ${KDEDIR}/bin/kbuildsycoca4 && -z "${ROOT%%/}" ]]; then
+		# Make sure tha cache file exists, or kbuildsycoca4 will fail
+		touch "${KDEDIR}/share/kde4/services/ksycoca4"
+
+		# We have to unset DISPLAY and DBUS_SESSION_BUS_ADDRESS, the ones
+		# in the user's environment (through su [without '-']) may cause
+		# kbuildsycoca4 to hang.
+
+		ebegin "Running kbuildsycoca4 to build global database"
+		# This is needed because we support multiple kde versions installed together.
+		XDG_DATA_DIRS="/usr/share:${KDEDIRS//:/\/share:}/share:/usr/local/share" \
+			DISPLAY="" DBUS_SESSION_BUS_ADDRESS="" \
+			${KDEDIR}/bin/kbuildsycoca4 --global --noincremental &> /dev/null
+		eend $?
+	fi
+}
+
+# @FUNCTION: comment_all_add_subdirectory
+# @USAGE: [list of directory names]
+# @DESCRIPTION:
+# recursively comment all add_subdirectory instructions in listed directories
+# except the ones in cmake/.
+comment_all_add_subdirectory() {
+	find "$@" -name CMakeLists.txt -print0 | grep -vFzZ "./cmake" | \
+		xargs -0 sed -i -e '/add_subdirectory/s/^/#DONOTCOMPILE /' -e '/ADD_SUBDIRECTORY/s/^/#DONOTCOMPILE /' || \
+		die "${LINENO}: Initial sed died"
+}
+
+# @ECLASS-VARIABLE: KDE_LINGUAS
+# @DESCRIPTION:
+# This is a whitespace-separated list of translations that this ebuild supports.
+# These translations automatically get added to IUSE. Therefore ebuilds must set
+# this variable before inheriting any eclasses. To only enable selected
+# translations ebuilds must call enable_selected_linguas(). kde4-base.eclass does
+# this for you.
+#
+# Example: KDE_LINGUAS="en_GB de nl"
+for _lingua in ${KDE_LINGUAS}; do
+	IUSE="${IUSE} linguas_${_lingua}"
+done
+
+# @FUNCTION: enable_selected_linguas
+# @DESCRIPTION:
+# Enable translations based on LINGUAS settings and what translations are
+# supported (see KDE_LINGUAS). By default translations are found in "${S}"/po
+# but this default can be overridden by defining KDE_LINGUAS_DIR.
+enable_selected_linguas() {
+	local lingua
+
+	for lingua in ${KDE_LINGUAS}; do
+		if [ -e "${S}"/po/"${lingua}".po ]; then
+			mv "${S}"/po/"${lingua}".po "${S}"/po/"${lingua}".po.old
+		fi
+	done
+	comment_all_add_subdirectory "${KDE_LINGUAS_DIR:-${S}/po}"
+	for lingua in ${LINGUAS}; do
+		if [ -d "${S}"/po/"${lingua}" ]; then
+			sed -e "/add_subdirectory([[:space:]]*${lingua}[[:space:]]*)[[:space:]]*$/ s/^#DONOTCOMPILE //" \
+				-e "/ADD_SUBDIRECTORY([[:space:]]*${lingua}[[:space:]]*)[[:space:]]*$/ s/^#DONOTCOMPILE //" \
+				-i "${KDE_LINGUAS_DIR:-${S}/po}"/CMakeLists.txt || die "Sed to uncomment linguas_${lingua} failed."
+		fi
+		if [ -e "${S}"/po/"${lingua}".po.old ]; then
+			mv "${S}"/po/"${lingua}".po.old "${S}"/po/"${lingua}".po
+		fi
+	done
+}
+
+# @ECLASS-VARIABLE: QT4_BUILT_WITH_USE_CHECK
+# @DESCRIPTION:
+# A list of USE flags that x11-libs/qt:4 needs to be built with.
+#
+# This list is automatically appended to KDE4_BUILT_WITH_USE_CHECK,
+# so don't call qt4_pkg_setup manually.
+
+# @ECLASS-VARIABLE: KDE4_BUILT_WITH_USE_CHECK
+# @DESCRIPTION:
+# The contents of $KDE4_BUILT_WITH_USE_CHECK gets fed to built_with_use
+# (eutils.eclass), line per line.
+#
+# Example:
+# @CODE
+# pkg_setup() {
+# 	KDE4_BUILT_WITH_USE_CHECK="--missing true sys-apps/dbus X"
+# 	use alsa && KDE4_BUILT_WITH_USE_CHECK="${KDE4_BUILT_WITH_USE_CHECK}
+# 		--missing true media-libs/alsa-lib midi"
+# 	kde4-base_pkg_setup
+# }
+# @CODE
+
+# run built_with_use on each flag and print appropriate error messages if any
+# flags are missing
+_kde4-functions_built_with_use() {
+	local missing opt pkg flag flags
+
+	if [[ ${1} = "--missing" ]]; then
+		missing="${1} ${2}" && shift 2
+	fi
+	if [[ ${1:0:1} = "-" ]]; then
+		opt=${1} && shift
+	fi
+
+	pkg=${1} && shift
+
+	for flag in "${@}"; do
+		flags="${flags} ${flag}"
+		if ! built_with_use ${missing} ${opt} ${pkg} ${flag}; then
+			flags="${flags}*"
+		else
+			[[ ${opt} = "-o" ]] && return 0
+		fi
+	done
+	if [[ "${flags# }" = "${@}" ]]; then
+		return 0
+	fi
+	if [[ ${opt} = "-o" ]]; then
+		eerror "This package requires '${pkg}' to be built with any of the following USE flags: '$*'."
+	else
+		eerror "This package requires '${pkg}' to be built with the following USE flags: '${flags# }'."
+	fi
+	return 1
+}
+
+# @FUNCTION: kde4-functions_check_use
+# @DESCRIPTION:
+# Check if the Qt4 libraries are built with the USE flags listed in
+# $QT4_BUILT_WITH_USE_CHECK.
+#
+# Check if a list of packages are built with certain USE flags, as listed in
+# $KDE4_BUILT_WITH_USE_CHECK.
+#
+# If any of the required USE flags are missing, an eerror will be printed for
+# each package with missing USE flags.
+kde4-functions_check_use() {
+	# I like to keep flags sorted
+	QT4_BUILT_WITH_USE_CHECK=$(echo "${QT4_BUILT_WITH_USE_CHECK}" | \
+		tr '[:space:]' '\n' | sort | uniq | xargs)
+
+	local line missing
+	if [[ -n ${KDE4_BUILT_WITH_USE_CHECK[@]} && $(declare -p KDE4_BUILT_WITH_USE_CHECK) = 'declare -a '* ]]; then
+		KDE4_BUILT_WITH_USE_CHECK=("x11-libs/qt:4 ${QT4_BUILT_WITH_USE_CHECK}"
+			"${KDE4_BUILT_WITH_USE_CHECK[@]}")
+
+		for line in "${KDE4_BUILT_WITH_USE_CHECK[@]}"; do
+			[[ -z ${line} ]] && continue
+			if ! _kde4-functions_built_with_use ${line}; then
+				missing=true
+			fi
+		done
+	else
+		KDE4_BUILT_WITH_USE_CHECK="x11-libs/qt:4 ${QT4_BUILT_WITH_USE_CHECK}
+				${KDE4_BUILT_WITH_USE_CHECK}"
+
+		while read line; do
+			[[ -z ${line} ]] && continue
+			if ! _kde4-functions_built_with_use ${line}; then
+				missing=true
+			fi
+		done <<< "${KDE4_BUILT_WITH_USE_CHECK}"
+	fi
+	if [[ -n ${missing} ]]; then
+		echo
+		eerror "Flags marked with an * are missing."
+		die "Missing USE flags found"
+	fi
+}