+define Build/Compile
+ $(CP) $(lastword $(wildcard $(KERNEL_BUILD_DIR)/iptables-*/extensions/libext.a)) $(PKG_BUILD_DIR)/libext.a
+ $(CP) $(lastword $(wildcard $(KERNEL_BUILD_DIR)/iptables-*/extensions/libext4.a)) $(PKG_BUILD_DIR)/libext4.a
+ $(CP) $(lastword $(wildcard $(KERNEL_BUILD_DIR)/iptables-*/extensions/libext6.a)) $(PKG_BUILD_DIR)/libext6.a
+ $(call Build/Compile/Default)
+endef
+
+TARGET_CFLAGS += -ffunction-sections -fdata-sections
+TARGET_LDFLAGS += -Wl,--gc-sections -Wl,--whole-archive
+