+include $(INCLUDE_DIR)/prereq.mk
+include $(INCLUDE_DIR)/host.mk
+include $(INCLUDE_DIR)/unpack.mk
+
+export CONFIG_SITE:=$(INCLUDE_DIR)/site/$(REAL_GNU_TARGET_NAME)
+
+define shvar
+V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
+endef
+
+define shexport
+$(call shvar,$(1))=$$(call $(1))
+export $(call shvar,$(1))
+endef
+