Bruno Haible <bruno@...> writes:
> With the usual habit of defining sb-pcl:validate-superclass methods, it is
> easy to crash SBCL.
Thanks for the report; SBCL now checks that classes with metaclass
standard-class do not have FUNCTION in their superclass lists, while
those with metaclass funcallable-standard-class do have FUNCTION in
their superclass lists; your test case now throws an error when
executing the DEFCLASS.