jbn@glacier.STANFORD.EDU (John B. Nagle) (02/27/88)
A number of people have asked for my version of Fahlman's 1972-vintage
BUILD program, a blocks world with solid geometric modelling capabilities.
This program is now being distributed by Jim Bennett of Coherent Thought, Inc.
(coherent!jbennett@ames.arc.nasa.gov), who should be contacted for further
information. The program is NOT in shape for general use, but may be
interesting for those who want to study the history of the field. There
is no support whatsoever for this code.
This version of BUILD runs under Kyoto Common Lisp. It requires
that a bug in KCL's EQUALP be fixed before it will run properly; in
some versions of KCL, EQUALP of arrays is incorrect. (See the code in
l_equalp of predicate.c in the KCL sources; the test for array rank is
backwards.)
John Nagle