Downgrading C/C++ compiler on Fedora 23 to a MATLAB R2016a-compatible compiler

I would like to build MEX functions from C/C++ source code to enable MATLAB script access, but my current version of Fedora has a newer and incompatible GCC. I have tried removing the installed GCC and installing a 4.7.x version of GCC using sudo dnf gcc-4.7.x (with x = [1, 2, 3, 4]), but it seems that none of those versions are hosted on the Fedora package repositories.

Is there any other way to install older versions of GCC on the newer Fedora versions?