+define Build/zyxel-ras-image
+ let \
+ newsize="$(subst k,* 1024,$(RAS_ROOTFS_SIZE))"; \
+ $(STAGING_DIR_HOST)/bin/mkrasimage \
+ -b $(RAS_BOARD) \
+ -v $(RAS_VERSION) \
+ -r $@ \
+ -s $$newsize \
+ -o $@.new \
+ $(if $(findstring separate-kernel,$(word 1,$(1))),-k $(IMAGE_KERNEL)) \
+ && mv $@.new $@
+endef
+
+define Build/mkbuffaloimg
+ $(STAGING_DIR_HOST)/bin/mkbuffaloimg -B $(BOARDNAME) \
+ -R $$(($(subst k, * 1024,$(ROOTFS_SIZE)))) \
+ -K $$(($(subst k, * 1024,$(KERNEL_SIZE)))) \
+ -i $@ -o $@.new
+ mv $@.new $@
+endef
+