[LV2] lv2_descriptor() considered harmful

[David Robillard]

On Thu, 2012-03-15 at 13:31 -0400, David Robillard wrote:
[...]
> Standard C does not allow casting between function and data pointers.
> 
> I am not sure how it impacts real world platforms.

Looks like the Windows equivalent of dlsym() returns a function pointer,
so it's actually impossible to do this correctly, i.e. be standard
compliant on all platforms.

Yay!

-dr