contrib/download_prerequisites
1.base_url='ftp://gcc.gnu.org/pub/gcc/infrastructure/' 改为base_url='https://gcc.gnu.org/pub/gcc/infrastructure/'
2.
解决办法：安装解压bz2扩展
标签：gcc,infrastructure,gnu,url,gcc8.2,pub,base,安装
来源： https://www.cnblogs.com/jasonxiaoqinde/p/10762324.html