Date: Sun, 19 Aug 2007 20:17:03 -0400 From: Marc Feeley feeley@iro.umontreal.ca
Could you please explain what you mean by "unsafe macro expansion"?
Presumably, he is referring to the non-hygienic macros like RECEIVE in the Gambit system, which are processed not by the hygienic SYNTAX-CASE expander but rather by the non-hygienic macro expander in the built-in evaluator.