[RFA/Patch] One more for libstdc++/28080

[Paolo Carlini]

Benjamin Kosnik wrote:

>> then I would commit as a preparatory step the below, say tomorrow 
>> evening, and then real soon will post the real patch for final 
>> review. (Note that we are already including explicitely <pthread.h> 
>> in many other tests, as should be always the case, in my opinion).
>
> Scanning through the testsuite, I do see that pthread.h is included in 
> a lot of other places directly. So, I'm in agreement.

Thanks Benjamin for the positive feedback, I'm proceeding with my plans...

Paolo.