+TARGET_DIR_ORIG := $(TARGET_ROOTFS_DIR)/root.orig-$(BOARD)
+
+ifdef CONFIG_CLEAN_IPKG
+ define clean_ipkg
+ -find $(1)/usr/lib/opkg -type f -and -not -name '*.control' | $(XARGS) rm -rf
+ -sed -i -ne '/^Require-User: /p' $(1)/usr/lib/opkg/info/*.control
+ -find $(1)/usr/lib/opkg -empty | $(XARGS) rm -rf
+ endef
+endif