Issue: DEFSTRUCT-REDEFINITION

[vanroggen%aitg.DEC@decwrl.dec.com]

I'd favor requiring redefining the same DEFSTRUCT as not being an error.
One way to tell that two DEFSTRUCTs are the same (although probably not
the way any implementation would really want to do it) it that two
calls to DEFSTRUCT are the same if they are EQUAL.  It's hard to specify
something more general that might not get into problems with various
implementations.
			---Walter