Please, add this to utils.lisp: #+clisp (defmacro with-system-redefinition-allowed (&body body) `(eval-when (:compile-toplevel :load-toplevel :execute) (ext:without-package-lock ("COMMON-LISP") ,@body))) -- __Pascal Bourguignon__ http://www.informatimago.com/ Cats meow out of angst "Thumbs! If only we had thumbs! We could break so much!"