Module detection [Was: Compile time filesystem access?]

[David Nadlinger]

On 1/30/12 3:24 PM, Manu wrote:
> Here's another one I'm endlessly wishing I had in C.
> I want to know if a library is present, and automatically disable
> non-vital features if it isn't.
> It shits me to tears when I can't build something because a non-vital
> dependant lib is not available for a given platform or just not wanted.

This could be an option, if it worked: 
http://d.puremagic.com/issues/show_bug.cgi?id=7399

David