openwrt來開發一個helloworld包 遇到打包庫依賴問題

（出處）https://my.oschina.net/hevakelcj/blog/411944

define Package/helloworld/install
echo "Here is Package/install"
$(INSTALL_DIR) $(1)/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/helloworld $(1)/bin/
$(INSTALL_DIR) $(1)/usr/lib
$(INSTALL_DATA) $(TOOLCHAIN_DIR)/lib/libc.so $(1)/usr/lib/libc.so
$(INSTALL_DATA) $(TOOLCHAIN_DIR)/lib/libgcc_s.so.1 $(1)/usr/lib/libgcc_s.so.1
endef