ifneq (,$(findstring vtimer,$(USEMODULE)))
	ifeq (,$(findstring hwtimer,$(USEMODULE)))
		USEMODULE += hwtimer
	endif
	ifeq (,$(findstring timex,$(USEMODULE)))
		USEMODULE += timex
	endif
endif

ifneq (,$(findstring uart0,$(USEMODULE)))
	ifeq (,$(findstring lib,$(USEMODULE)))
		USEMODULE += lib	
	endif
endif

ifneq (,$(findstring cc110x,$(USEMODULE)))
	ifeq (,$(findstring protocol_multiplex,$(USEMODULE)))
		USEMODULE += protocol_multiplex
	endif
endif

ifneq (,$(findstring cc110x_ng,$(USEMODULE)))
	ifeq (,$(findstring transceiver,$(USEMODULE)))
		USEMODULE += transceiver
	endif
	ifeq (,$(findstring hwtimer,$(USEMODULE)))
		USEMODULE += hwtimer
	endif
endif

ifneq (,$(findstring cc2420,$(USEMODULE)))
	ifeq (,$(findstring transceiver,$(USEMODULE)))
		USEMODULE += transceiver
		USEMODULE += ieee802154
	endif
endif

ifneq (,$(findstring at86rf231,$(USEMODULE)))
	ifeq (,$(findstring transceiver,$(USEMODULE)))
		USEMODULE += transceiver
		USEMODULE += ieee802154
	endif
endif

ifneq (,$(findstring pnet, $(USEMODULE)))
	ifeq (,$(findstring posix, $(USEMODULE)))
		USEMODULE += posix
	endif
	ifeq (,$(findstring destiny, $(USEMODULE)))
		USEMODULE += destiny
	endif
	ifeq (,$(findstring net_help, $(USEMODULE)))
		USEMODULE += net_help
	endif
endif

ifneq (,$(findstring destiny,$(USEMODULE)))
	ifeq (,$(findstring sixlowpan,$(USEMODULE)))
		USEMODULE += sixlowpan
	endif
	ifeq (,$(findstring net_help,$(USEMODULE)))
		USEMODULE += net_help
	endif
endif

ifneq (,$(findstring sixlowpan,$(USEMODULE)))
	ifeq (,$(findstring ieee802154,$(USEMODULE)))
		USEMODULE += ieee802154
	endif
	ifeq (,$(findstring net_help,$(USEMODULE)))
		USEMODULE += net_help
	endif
	ifeq (,$(findstring semaphore, $(USEMODULE)))
		USEMODULE += semaphore
	endif
	ifeq (,$(findstring transceiver, $(USEMODULE)))
		USEMODULE += transceiver
	endif
endif