On Aug 9, 2005, at 9:14 PM, Izumi Tsutsui wrote:

> I don't know the difference of ${arch} and ${karch} usage on amd, but
> if we have complete binary compatibility among the same MACHINE_ARCH
> machines (and I think we actually do), we don't have to provide
> keywords about ${MACHINE} for each host.

In SunOS, "kernel architecture" was the term used to distinguish  
sun4, sun4c, sun4m, etc.  Presumably, that's what amd's "karch"  
represents.  That's why I say it's analogous to hw.machine.

-- thorpej