Hey guys I've been working on the Mac OS version of ClanLib in order to support my game on OSX and I wanted to contribute my changes.
I fixed a problem with the sound where the sound library wasn't being set up properly in all cases.
I also added a bunch of font code, including the ability to load fonts from a source other than a file, similar to the patch I did for Win32 that was added to 3.0.1.
And finally, I added support for more keys and better mod-key (shift,ctrl) support as well.

Here is a zip with the changed files: