smart linker

[Brian Bliss]

I used to use Pyramid's sequent multiprocessor for a class.
It has an optimizing linker that only included routines that
were referenced, not entire object modules.  If I remember correctly,
It would also removeunreferenced code/data from object modules that 
were not in libraries, so the algorithm used must have bee more
along the lines of "include a module, then remove everything
unreferenced", instead of "only include the needed symbols".

bb