原文链接 ：https://blog.csdn.net/qq_29259155/article/details/80693709
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Centos 6.8 安装 gcc 命令
rpm -ivh mpfr-2.4.1-6.el6.x86_64.rpm
rpm -ivh cpp-4.4.7-17.el6.x86_64.rpm
rpm -ivh ppl-0.10.2-11.el6.x86_64.rpm
rpm -ivh cloog-ppl-0.15.7-1.2.el6.x86_64.rpm
rpm -ivh gcc-4.4.7-17.el6.x86_64.rpm