之前的安装gcc5.2环境命令失效了

用下面最新的命令即可

其他的默认就行

安装gcc5.2环境

cd /root
wget –no-check-certificate https://copr.fedorainfracloud.org/coprs/hhorak/devtoolset-4-rebuild-bootstrap/repo/epel-7/hhorak-devtoolset-4-rebuild-bootstrap-epel-7.repo -O /etc/yum.repos.d/devtoolset-4.repo
cd /root
wget –no-check-certificate https://copr.fedorainfracloud.org/coprs/hhorak/devtoolset-4-rebuild-bootstrap/repo/epel-7/hhorak-devtoolset-4-rebuild-bootstrap-epel-7.repo -O /etc/yum.repos.d/devtoolset-4.repo
cd /root
wget –no-check-certificate https://copr.fedorainfracloud.org/coprs/hhorak/devtoolset-4-rebuild-bootstrap/repo/epel-7/hhorak-devtoolset-4-rebuild-bootstrap-epel-7.repo -O /etc/yum.repos.d/devtoolset-4.repo