>>>>> On Thu, 3 May 2001 22:52:13 -0400 (EDT), Raffael Cavallaro ("Raffael") writes: Raffael> macros that are hygenic - unlike Common Lisp macros) Common Lisp macros do not, in practice, have the hygiene problem (that's one of the main uses of GENSYM). You are probably thinking of a hypothetical problem where you have macros like in Common Lisp, but in Scheme.