rs6000 3.1 Ada bootstrap problem

[Richard Kenner]

Well, the fundamental problem here is that we have a configuration
where the sizes are a function of the -m values.  So gnatpsta (which
is just a utility to print sizes and such) doesn't really have a good
way of outputting the "right" value.  Moreover, you also don't want to
try to pull in everything involved in computing that value.

This needs to be kludged somehow to return a "reasonable" value (i.e.,
the one with no -m switches), but it's not at all clear what the best
way to do that is given the structure of the rs6000 config files.