CentOS 6 GCC compiler Upgrade

When installing bro 2.5, you need a gcc version >= 4.8.  Here’s how to accomplish this in CentOS 6 if you get errors.

First enable the repo by installing this package.

yum install centos-release-scl

Once completed, this package needs to be installed:

yum install devtoolset-3-toolchain

And then the new compiler is enabled:

scl enable devtoolset-3 bash

Then bro 2.5 should compile.