1.从github上下载openssl的源码:
git clone https://github.com/openssl/openssl.git
2.安装CPAN
sudo yum install -y perl-CPAN
3,CPAN安装成功后启动CPAN的shell
perl -MCPAN -e shell
4.在CPAN的shell中安装IPC/Cmd.pm模块
5.IPC/Cmd.pm模块安装成功如下:
6.退出CPAN的Shell,然后进入openssl的源码目录:
