cmd_drivers/media/common/modules.order := { cat drivers/media/common/b2c2/modules.order; cat drivers/media/common/saa7146/modules.order; cat drivers/media/common/siano/modules.order; cat drivers/media/common/v4l2-tpg/modules.order; cat drivers/media/common/videobuf2/modules.order; :; } | awk '!x[$$0]++' - > drivers/media/common/modules.order