[PATCH roland/test-unsupported] Let tests result in UNSUPPORTED; use that for unbuildable C++ cases

[Carlos O'Donell]

On 03/10/2015 06:14 PM, Roland McGrath wrote:
> I've committed it with the only change from what I posted being not making
> XPASS cause 'make check' to exit nonzero.  Everything else discussed can be
> done in follow-on changes, none of which I am particularly planning to do.

Thanks for this.

Cheers,
Carlos.