$(PKG_BUILD_DIR)/.unpacked: $(DL_DIR)/$(PKG_SOURCE)
$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
+ $(PATCH) $(PKG_BUILD_DIR) ./patches
touch $(PKG_BUILD_DIR)/.unpacked
$(PKG_BUILD_DIR)/ebtables: $(PKG_BUILD_DIR)/.unpacked