Is there any way to have both the syntax-case macros and use Gambit's DSSSL parameters at the same time? I found that you can't use them normally after loading the file, as in

> (load "~~/syntax-case.scm ")
"/usr/local/Gambit-C/4.0b22/syntax-case.scm"> (load "~~/syntax-case.scm")
> (define (foo x #!key y)
(list x y))
*** ERROR -- invalid syntax (define (foo x #!key y) (list x y))> (define (foo x #!key y)
(list x y))

However, if I do
> (##define (foo x #!key y)
(list x y))

It works fine. Okay.

But now, if I were to try this:
> (define-syntax twice
   (syntax-rules ()
    ((_ x) (begin x x))))
> (##define (bar x)
    (twice x))
> (bar 5)
** ERROR IN bar, (stdin)@55.2 -- unbound variable twice

So, once I've loaded syntax-rules, I can only use the DSSSL extensions in ##define forms, but I can only use syntax macros in define forms. Is there any way around this? Do I have to prefix the syntax macros with a specific namespace? I'm assuming that's what the problem is, the macros being in a different namespace...but which one?

Kind of curious,
James