WORKDIR = "${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}"

do_rm_old_works() {
	subdir="${TMPDIR}/work/${MULTIMACH_TARGET_SYS}/${PN}"
	if [ -d "$subdir" ]; then
	   for v in `ls $subdir`; do
	       if [ "$subdir/$v" != "${WORKDIR}" ]; then
	       	  echo "Deleting old work dir $v"
	       	  rm -rf $subdir/$v
	       fi
	   done
	fi
}

addtask rm_old_works before do_unpack