Log Message:
Preliminary hacks for building this with -m32 on amd64 NetBSD.

I've run into local problems with COMPAT_32 so this only gets a short
distance in before I can't run it any further, but I'm going to commit
anyway as "broken package" > "no package", and with luck \ 
I'll get it
sorted out fully before much longer.

Also allow amd64 Linux as the necessary hacks for that seem to already
be in place.