[v3] c++0x includes

[Paolo Carlini]

A couple of quick feedbacks.

> Yes. I saw those: It looks like AIX has one fail as well.

Actually, the AIX one is very old and just a warning for 
function-sections vs debugging, already asked David

> There appear to be unrelated issues WRT hppa2.0w-hp-hpux11.11 as well: 
> maybe this is some fallout from the C pruning?

Everything is ok, no problem, Steve Ellcey was playing with an old 
check-out.

Paolo.