On Thu, 18 Mar 2004 I wrote:

>   - I'm not entirely sure if it's a good idea, but I have a nagging
>     suspicion that macro writers may want a utility for generating
>     debugging messages.  It of course can't be implemented in terms of
>     plain SYNTAX-RULES, but it can trivially be defined with other
>     macro systems, e.g.:
>
>       [...]
>
>              (syntax (syntax-bind ?k ()))))))
>
>       [...]
>
>               `(,(rename 'syntax-bind) ,stx-k ())))))

Oops.  I meant:

  (syntax (syntax-bind ?k (syntax-return ())))

and

  `(,(rename 'syntax-bind) ,stx-k (,(rename 'syntax-return) ()))