fluids (how to use them?) && #!optional

[mmc@maruska.dyndns.org (\"Michal Maruška\")]

(i am 2 days new to scheme and scsh, sorry)

I have 2 problems:

1/ fluids in scsh:

| (define variable #t)
| (fluid-let ((variable #f))
|     (access-variable))

 says:

Error: attempt to call a non-procedure
        (#t #f)

i see no examples in the tarball, but sources do have (fluid-let.
What's wrong ?




2/ #!optional  is legal in scheme, but in scsh it starts a comment!
i bet i am missing something.