[plt-scheme] verifying whether a symbol is defined at compile time?

Jens Axel Søgaard wrote:
> Hi Yin-So,
> 
> Matthew's hint about identifier-binding is probably what you need now.
> In more general situations you can keep track of the names (and/or 
> associated informations) by a define-like macro with the help
> of a little bookkeeping.

As a side note a related/unrelated question:

This bookkeeping requires many files since you can only put a module in 
it's own file with a name equal to that from module the definition or am 
I missing something?

-- 
regards,
Jakub Piotr Cłapa