Final cleanups for SCO port

[Kean Johnston]

>>They are pretty well isolated and shouldn't affect anyone
> 
> 
> That really describes SCO well ;-) (OK sorry I couldn't resist. >:-)
:)

Actually we had over 600000 downloads of the last one so it
affects a few people :)

-- 
Deckard: "I don't work here anymore. Give it to Holden. He's good."
Bryant : "I did. He can breathe okay as long as nobody unplugs him."
       --- Bladerunner