You're welcome.
When I tried my AGK2 game on various Linux distros, here's what I found: (I think I was using AppGameKit 2.0.19 then)
Worked on: Ubuntu 14.04 and Mint 17.3 both using a DEB package that had libopenal1, libcurl3, libavcodec54, and libavformat54 given as dependencies. I think I added libcurl3 to the others in order to get it to work on Mint 17.3.
Did not work on: SteamOS, Debian 7.10, and Ubuntu 16.04
I haven't had a chance to try things out with 2.0.20 yet. I have a few things to finish before I can get back to it. I'm actually hoping Paul has a chance to remove the need for these dependencies before I get back to it.