sync toplevel between GCC and src

[Paolo Bonzini]

Ralf Wildenhues wrote:
> Hi Paolo, and thanks for the feedback!
> 
> * Paolo Bonzini wrote on Sun, Aug 16, 2009 at 06:52:45PM CEST:
>>>   ** adding target-newlib to noconfigdirs for powerpc-*-aix* and
>>>      rs6000-*-aix*,
>> This puzzles me.
> 
> You seem to have approved it:
> <http://gcc.gnu.org/ml/gcc-patches/2009-06/msg00142.html>
> <http://gcc.gnu.org/ml/gcc-patches/2009-06/msg00157.html>

Because I always confuse the direction of "noconfigdirs".  The patch is
obviously correct.

Paolo