cd /etc/yum.repos.d
wget http://people.centos.org/tru/devtools-2/devtools-2.repo
yum install devtoolset-2-gcc devtoolset-2-binutils devtoolset-2-gcc-c++
mv /usr/bin/gcc /usr/bin/gcc.bak4.1.2
mv /usr/bin/c++ /usr/bin/c++.bak4.1.2
mv /usr/bin/g++ /usr/bin/g++.bak4.1.2
ln -s /opt/rh/devtoolset-2/root/usr/bin/gcc /usr/bin/gcc
ln -s /opt/rh/devtoolset-2/root/usr/bin/c++ /usr/bin/c++
ln -s /opt/rh/devtoolset-2/root/usr/bin/g++ /usr/bin/g++
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[root@hadoop151 ~]# gcc --version
gcc (GCC) 4.8.2 20140120 (Red Hat 4.8.2-15)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@hadoop151 ~]# g++ --version
g++ (GCC) 4.8.2 20140120 (Red Hat 4.8.2-15)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@hadoop151 ~]# uname -a
Linux hadoop151 2.6.18-308.el5 #1 SMP Fri Jan 27 17:17:51 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
[root@hadoop151 ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 5.8 (Tikanga)
Kernel \r on an \m |
文章标题：centos5.8升级gccg++
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