devkitPro

I doubt that someone plug a mouse in a Wii.
I think that SDL for Wii must provide mouse emulation via Wiimote 0 without particular settings or calls to subroutine to enable it (original porting of SDL for Wii did it by default).
But this is only my opinion. I'm not the maintainer of SDL for Wii.

That's probably a fair point really. I'll see what I can do.

Thanks