Objective-C 4.0 bug on Sun 3/UNIX v4.0.3

[M. A. Kinstrey]

A bug exists on Sun 3/60 and Sun 3/80 running UNIX v4.0.3 and Objective-C
4.0. The bug occurs in the "SortCltn" class.  Whenever an object is added
to the class, it dumps core due to the id of the class changing. 

Stepstone Corp. has been notified of the problem, they were able to
reproduce the error, and determined that the Objective-C 4.0 compiler
which they delivered to systems with UNIX v4.0.3 was compiled under UNIX
v3.5. 

Stepstone recompiled the compiler under v4.0.3, and the bug has been
fixed.

Contact Stepstone for the update.