potential future proofing fix for aicasm build.

[Alfred Perlstein]

On 5/1/13 9:57 AM, Steven Hartland wrote:
> I don't believe aicasm is actually needed if you don't have a driver
> which requires e.g. ahd or ahc. It would be good to get that fixed too.

True, but a challenge I don't currently have time for.

I'm about to kick-off a universe build with my changes in aicasm, but I 
was hoping someone could tell me if I was going in the right direction here.

-Alfred