gnome2 and packages cleanup

[Mario Hoerich]

# Gareth Campbell:
> I was installing gnome2 from the ports collection (on dial-up!) and it 
> took like 3 days of constant work when it finally ran out of space on my 
> /usr drive (only using a 6.4gig).  I thought this would be more than 
> enough, but alas...  

Did you run a 'make clean' in between?  During the build
process, the work-directories are _not_ removed and they
tend to eat up quite a lot of space.   The whole gnome
probably isn't more than 300M installed (if that).

 HTH,
Mario