[developers] compiling rms in sbcl

[Ann Copestake]

could you be more precise?  do you mean that you think Allegro CL is allowing 
things that aren't ANSI CL by any definition, or that SBCL is making stronger 
assumptions about what's ANSI CL and what isn't?  It's going to be hard to 
maintain SBCL compatibility if there are many divergences and you should not 
start making large-scale modifications to other people's code without further 
discussion.  If there are things we're using which are in the ANSI spec but 
which SBCL doesn't currently cover, we need to consider whether they are 
likely to be added to SBCL in the near future or not.

It would be useful if you can note down the divergences that are affecting us 
and send a list round.

Ann