[aristidb]

You can install a devtoolset[1] to get a newer GCC which keeps ABI compatibility. I'm using gcc 6.2.1 on CentOS 7 that way.

[1]: https://www.softwarecollections.org/en/scls/rhscl/devtoolset...

[noselasd]

And to be clear, devtoolset/softwarecollections.org is done by Red Hat - it's not some random third party repository providing some use-at-your-own-risk packages.