[v3] Update Solaris baselines for GCC 4.7

[Rainer Orth]

Jonathan Wakely <jwakely.gcc@gmail.com> writes:

> The change is probably pr 50196
>
> (Sent offlist because the android gmail app refuses to send plain text
> mails)

Right.  I think about disabling _GLIBCXX_HAS_GTHREADS on Solaris 8 and 9
per default, with the option of enabling it knowing that it breaks
symbol versioning.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University