Using something like (for old-val = (atomic-decf ...)) in SBCL gives a warning that (sb-ext:truly-the ...) isn't known.
So perhaps there should be a #+sbcl (sb-ext:truly-the . walk-cddr) just below the "the" handling case. I've reported that as https://bugs.launchpad.net/sbcl/+bug/771673, too. Regards, Phil -- Versioning your /etc, /home or even your whole installation? Try fsvs (fsvs.tigris.org)! _______________________________________________ iterate-devel site list iterate-devel@common-lisp.net http://common-lisp.net/mailman/listinfo/iterate-devel