[GUI] Port library for Mac OS X

[Wolfgang Thaller]

I've had a look at the Port library, and I think I like it.
It looks as if it won't be too difficult to port it to Mac OS X - I'll 
see what I can do to make it happen.

Of course, there's the ever-present menu bar issue (on Mac OS, a menu 
bar is associated with an application, not with a window). I'll try to 
work around that somehow.

Are there some simple example programs implemented using the Port 
library that I could use for testing my implementation?

I've got some exams coming up in the next two weeks, so I don't know 
how much time I'll really have, so don't expect results too soon.

Cheers,

Wolfgang