libstdc++-v3 won't build on IRIX 5.2

[Mark Mitchell]

>>>>> "Alexandre" == Alexandre Oliva <aoliva@redhat.com> writes:

    Alexandre> Thoughts?

I think we should use those macros where they are available, since we
know they match the OS.

But, there's no reason not to have multiple IRIX configurations, just
like we have multiple Solaris configurations.

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Mark Mitchell                   mark@codesourcery.com
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