[commit/AIX] Fix error when loading core file

[Joel Brobecker]

Ulrich,

> I'll try to get back to doing this, but it'll be some time.  If
> you want to work at it earlier, that would certainly be welcome.

If you don't mind looking at this, then this is great. I just noticed
some issues with thread switching that I can have a look at - I'm much
more familiar with this part of the code than with LDINFO structures...

-- 
Joel