[fixincludes, v3] Don't define libstdc++-internal macros in Solaris 10+ <math.h>

[Rainer Orth]

Hi Jonathan,

>>Ok for mainline now and the backports after some soak time?
>
> Yes, the libstdc++ parts are OK, thanks.

I assume Bruce is ok with the change to the hpux11_fabsf fix given that it
was suggested by the HP-UX maintainer and fixes fixincludes make check ;-)

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University