akcl port

[hws%icsib1.Berkeley.EDU@jade.berkeley.edu (Heinz Schmidt)]

In a previous email today I reported on problems with compiling
May Day (Rev 2) under akcl 1-473. 

I've now compiled the system bypassing the defsystem facility
of pcl. Just compile-load'ing each of the relevant files works fine
(except for a minor change of one of the precom files that ends
 in a comment not followed by a carriage return; akcl comment-reader
 apparently doesn't look for eof's).

The reason of the original problem is still unclear, though. Looking into the
stack I found cyclic structures representing the system transformations
and dependencies. I suspect that this is not ok and assume there is some
memory management error in akcl that shows up its ugly face here.

-- Heinz