I tried everything you had listed. I only had one version of gcc (4.6) installed. I ran sudo apt-get update and upgrade, both were up to date. Still no dice.
So I went and deleted all the mlbviewer and mlbhls files to start fresh. Before I did that, I installed the gcc-4.8. I re-downloaded everything and started the install fresh. Everything worked like a charm this time around. I must have had something wrong with gcc-4.6.
Thanks for pointing me in that direction, I wouldn't have known where to look otherwise. Hopefully this helps someone else as well.