auto-build: fixed build function exit cleanup

	fi

	# lock the build dir

	mkdir -p "`dirname "$dbuild".`"

	while true; do

		for i in `seq 1 $dmax`; do

			dir="$dbuild$i"

			dir=`readlink -f "$dbuild$i"`

			lock="$dir.lock"

			until _acquired_lock "$lock"; do

				_clear_stale_lock "$lock" || break

		_acquired_lock "$lock" && break

		sleep 4

	done

	trap "[ -L '$lock' ] && rm '$lock'" EXIT

	trap "[ -e '$dir' ] && rm -r '$dir'; [ -L '$lock' ] && rm '$lock'" \

		RETURN EXIT

	# create the build dir if it does not exist & remove any stickbits set by 

	# the parent; prevents permissions from being forced to values that may