#!/bin/bash
function fix_qt4_ebuilds {
        pushd /usr/portage/dev-qt
        ELEMENT=(core dbus gui script svg)
        JOB_PID=$$
        for((COUNTER=0, ARRAY_SIZE=${#ELEMENT[*]}; COUNTER < ARRAY_SIZE; ++COUNTER)) do
                CURRENT_ELEMENT=$ELEMENT[COUNTER]
                EBUILD=`ls qt$ELEMENT/qt$ELEMENT-4*.ebuild | tail -n1`
                if [ "`grep ^IUSE $EBUILD | grep c\+\+0x | wc -l`" -eq "0" ]; then
                        cat $EBUILD | sed 's/^IUSE=\"/IUSE=\"c\+\+0x\ /' > ebuild.$JOB_PID
                        mv ebuild.$JOB_PID $EBUILD
                        ebuild $EBUILD digest
                else
                        echo "$EBUILD already contains c++0x"
                fi
        done
        popd
}

function stop_being_silly {
        pushd /usr/portage/profiles
                JOB_PID=$$
                sed 's/^qt5$//' base/use.mask > $JOB_PID
                mv $JOB_PID base/use.mask
        popd
}

emerge --sync -q
if command -v layman; then layman -Sq; fi
fix_qt4_ebuilds
stop_being_silly