This is a missing hunk from commit 85b04c8b "Makefiles: nuke $(SRC_DIR)"
which has somehow escaped from my attention.
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>