GDB Python extension on AIX

[Joel Brobecker]

> I think the ball is in GDB's court.
> 
> If GDB is going to intervene in these macros for some systems and
> configuratino, I request a method to disable this for AIX.

Seems like a reasonable request to me, at least as a stop-gap measure.
If there is a way to do things more correctly, perhaps we could look at
that as a second step.

Note that it is strange that I don't see the error you are seeing.
But perhaps it has to do with the fact that we use a version of
Python which we built and installed at a non-standard location?

-- 
Joel