-#
-# include .depdirs and define rules to order priorities between build
-# of directories.
-#
--include $(RTE_OUTPUT)/.depdirs
-
-define depdirs_rule
-$(1): $(sort $(LOCAL_DEPDIRS-$(1)))
-endef
-
-$(foreach d,$(ROOTDIRS-y),$(eval $(call depdirs_rule,$(d))))
-drivers: | buildtools
+buildtools: | lib
+drivers: | lib buildtools
+app: | lib buildtools drivers
+test: | lib buildtools drivers