How to install gcc8 using devtoolset-8-gcc

Question

I am using CentOS Linux release 7.3.1611 which has gcc 4.8.5 20150623 installed. I am looking for a way to install a newer version of gcc, specially 8.1. I found the following

Answer 1

The follows worked in centos/rhel 7.

• How to install it?

# rpm -ivh http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-scl-rh-2-3.el7.centos.noarch.rpm
# yum install devtoolset-8

Here is the rpm from http://mirror.centos.org/centos/7/extras/x86_64/Packages/ that might be needed to be updated accordingly.

• How to use it?

$ scl enable devtoolset-8 bash
$ gcc --version
gcc (GCC) 8.3.1 20190311 (Red Hat 8.3.1-3)
Copyright (C) 2018 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.

The flags -std=c++17 -lstdc++fs and the following line could be helpful.

#include