CentOS6.5升级GCC4.8

# curl -Lks http://www.hop5.in/yum/el6/hop5.repo > /etc/yum.repos.d/hop5.repo

# cat  /etc/yum.repos.d/hop5.repo
[hop5]
name=www.hop5.in Centos Repository
baseurl=http://www.hop5.in/yum/el6/
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-HOP5

# yum install gcc gcc-g++ -y