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centos5.8升级gccg++
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 |
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