Compiling UE4 on Debian testing box

I wanted to install UE4 on my Debian Linux (testing) box, so I downloaded from git and ran the script. That wants to install the dependency “libmono-corlib4.0-cil”, however, on my Debian box I already have the new version “libmono-corlib4.5-cil” installed. The latter is based on mono4 instead of mono3.

Any chance I can compile and run UE4 with that newer version of the libmono-corlib package?

If mono4 is not vital for you, you may downgrade to older packages and build UE using them.
See my answer here for some useful info on how to do this, especially 2nd part.