$(if $(findstring sysupgrade,$(word 1,$(1))),-S) && mv $@.new $@ || rm -f $@
endef
+define Build/mksercommfw
+ -$(STAGING_DIR_HOST)/bin/mksercommfw \
+ $@ \
+ $(KERNEL_OFFSET) \
+ $(HWID) \
+ $(HWVER) \
+ $(SWVER)
+endef
+
+
define Build/append-dtb
cat $(KDIR)/image-$(firstword $(DEVICE_DTS)).dtb >> $@
endef