macros expanding into definitions

["Guillermo J. Rozas" <gjr@martigny.ai.mit.edu>]

   From: Pavel Curtis <Pavel@parc.xerox.com>
   Date: 	Tue, 1 Dec 1992 11:59:14 PST

   I believe that Jinx's analysis of his examples is correct, using the
   transformation given in R4RS in the last paragraph before section 7.2.1.  The
   only clarification I would make (and I think Jinx would agree, based on his
   wording) is that references to variables with unspecified values *is* an error,
   but may not *raise* an error in some implementations.

I agree.