I'm using perl's -P option so that I can prevent blocks of code from being compiled by perl when I'm not debugging.

It seems to be working very well, except that I need to extend the concept to some supporting modules, which have been created with 'h2xs -X' and are using autoloader.

Basically, I want my main program to be something like:

#!/usr/local/bin/perl -P
#define DEBUG 1

Then in my module methods, I want to be allowed to do this:

#ifdef DEBUG
  &big_expensive_function();
#endif

The problem is that the c pre-processor doesn't seem to work within the modules. And the code block is being executed every single time, regardless of how DEBUG is set.

I know I could just use a perl if(). But in the end product, I'd end up processing multiple if's on the order of millions of times, and efficency is very important.

Thanks

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