Code review comment for lp:~alan-griffiths/mir/fix-1543049

> Oooh! You know what we should do? We should *first* dlopen(NULL, $STUFF) and
> see if we can resolve the relevant symbols from there!
>
> If we can, then that means we've already loaded a module that provides the
> symbol, and we should use it. That'd resolve:
> + // TODO find a way to coordinate the selection of mesa-x11
> and input platforms

Give or take the detail that dlopen(NULL, $STUFF) won't work (modules are loaded with RTLD_LOCAL) and different trick is needed that's the approach taken in a grandchild of this MP:

lp:~alan-griffiths/mir/spike-input-from-the-existing-graphics-module/+merge/287964

So you're probably happy with this part of it now?