export list symbols

[Luke Howard]

> I was particularly thinking about the case of a public interface  
> becoming
> private, but long enough ago that there weren't yet prototypes for all
> public functions.  I certainly agree that, if something was never  
> public,
> it's reasonable not to worry about outside users unless there is  
> specific
> evidence of an "interesting" use.

Well, given everyone else in the room has chimed in :-)

I think MIT can probably afford to be more aggressive in removing  
deprecating symbols than an OS vendor.

-- Luke