$(foreach var,$(nested-vars),$(call push-var,$(var),$1/))
$(eval obj := $(obj)/$1)
$(eval include $(SRC_PATH)/$1/Makefile.objs)
+$(eval -include $(wildcard $1/*.d))
$(eval obj := $(patsubst %/$1,%,$(obj)))
$(foreach var,$(nested-vars),$(call pop-var,$(var),$1/))
endef