Re: tools to make non-conservative GC feasible.

[Chris.Bitmead@misys.com.au]

>Isn't there one more issue?  I'm not at all certain that a precise
>collector would be more efficient.  With conservative GC you have to
>scan the stack once per GC.  With precise GC, you have to do
>bookkeeping (both registering and off-registering) for every single
>SCM variable occuring on the stack between GC:s...

But it may be a lot easier to implement incremental collection with
explicit marking.