Re: Creating a top level definition if none so far exists, on the fly.

[Mike Gran]

> From: Richard Shann <address@hidden>
> 
> I have just started using GNU/Denemo under the guile 2.x and the
> following construct no longer works:
> 
> (if (not (defined? 'ToggleFiguredBassMode::Active))
>     (define ToggleFiguredBassMode::Active #f))

I remember Andy once suggested on this list that
 
(define-once ...) 
 
is a possible replacement for the
 
(if (not (defined? ...)
     (define ...))
 
construction
 
-Mike