[racket] Problem with scribble examples written in linked language

On 12/5/12 2:33 PM, Matthew Flatt wrote:
> At Wed, 05 Dec 2012 14:24:09 -0500, David Van Horn wrote:
>> Am I doing something wrong, or is this a buggy interaction between the
>> sandbox and raco link?
>
> The sandbox's default settings probably don't interact nicely with
> `raco link', and if not, we should improve that.
>
> Use `call-with-trusted-sandbox-configuration' while creating the
> evaluator to avoid the problem. That's probably the right thing to do,
> anyway.


Thanks, that helped me make progress.  Unfortunately, my language 
depends on redex, and therefore racket/gui/base, which causes:

raco setup: error: during Building docs for 
/Users/dvanhorn/Documents/git/pcf/scribblings/pcf/main.scrbl
raco setup:   cannot instantiate `racket/gui/base' a second time in the 
same process

Is there a work around for this?  (I remember seeing something in docs 
about this, but now I can't track down that paragraph; I also remember 
dealing with this issue in the past but can't remember what the solution 
was.)

Thanks,
David