[patch/rfa] xm-aix4.h cleanup

[Joel Brobecker]

> I'm in favor of this patch so long as AIX still builds okay and the test
> results look good.

Thanks Kevin. This patch was successfullly tested on AIX 4.3.2 and 5.1.
So I checked it in.

Now, on to the last 2 entries....

-- 
Joel