Date: Wed, 28 Feb 90 16:11 PST
From: snicoud@atc.boeing.com (Stephen Nicoud)
(do-external-symbols (sym :cl) (export sym :my-cl))
The bug here is that EXPORT takes either a symbol or a list of symbols.
Guess what the value of (LISTP 'NIL) is?
I think (EXPORT '(NIL) PACKAGE) will work.