[plt-dev] hangman teachpack broken

I was doing similar things when Matthew sent his message. Guess it
pays to have written the error messages, eh?  :)

Thanks, Matthew.

Robby

On Thu, May 21, 2009 at 11:35 AM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
>
> The following program triggers the error.
>
> #lang scheme/load
>
> (module draw-sig.ss scheme
>  (provide draw^)
>  (define-signature draw^()))
>
>
> (module big-draw.ss scheme
>
>  (require lang/posn
>           mzlib/unit
>           mred
>           mred/mred-unit
>           graphics/graphics-sig
>           graphics/graphics-posn-less-unit)
>
>  (define-values/invoke-unit/infer
>    (export graphics^)
>    (link graphics-posn-less@ standard-mred@))
>
>  (provide-signature-elements graphics^)
>  )
>
> (module a scheme
>  (require 'draw-sig.ss 'big-draw.ss mzlib/unit)
>  (provide-signature-elements draw^))
>
> (require 'a)
>
>