[PATCH] pselect: Use linux pselect syscall when available

[Waldemar Brodkorb]

Hi Nicolas,
Nicolas S. Dade wrote,

> This supercedes the previous pselect patch from 16 Dec 2015.

Can you resend next time with PATCH v3 in the subject and
a short Changelog after the comment ---. Thanks.

What you think about Rich comment?

best regards
 Waldemar