[Coco] NitrOS9 build errors

[Tormod Volden]

On Mon, Jan 20, 2014 at 9:49 AM, Ciaran Anscomb wrote:
> The biggest issue for any emulator is the lack of JVC header information
> - without this, it's impossible to tell the difference between a 40T
> double-sided disk and an 80T single-sided one.

That could be considered cheating, but if it recognizes the disk as an
OS-9 one, it could check sector 0 for geometry details.

Tormod