ools with multiple inheritance

[Eric L. Raible]

We are contemplating using an object oriented language for our next
project on Iris 4D's.

To this end, does anyone have either:

1) a version of common lisp with a fast version of CLOS (PCL might be
   okay) that runs on the 4D's

2) a version of C++ that has multiple inheritance.  That runs on the
   4D's.  A solid port of g++ (1.36) would be just fine.

3) any other suggestions for object oriented languages that *run* on
   the 4D, and an explanation of why it is better than 1 or 2.