[Nh-pm] overloading subs?

[pll at lanminds.com]

Hi all,

I have a chunk of code which "use"s a module I wrote.  I want to be 
able distribute this code without the requiring the use of this 
module.  Is there any way to have an externally imported sub mask a 
local one?  Basically, what I'd like is this:

	if (external module) {
	   use that;
	} else {
	   use this one here;
	}

I think I'm missing something very obvios here, but how can I test if 
a module has been imported at execution time?  IOW, use statements 
are evaluated at compile time, but any test I do probably needs to be 
done later on.  

Any ideas?

Thanks,

-- 

Seeya,
Paul
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