[issue895] pselect(2) implementation

[Nicolas Thery <sinknull@xxxxxxxxxxxxxxxxxxxxxxx>]

Nicolas Thery <nthery@gmail.com> added the comment:

Here is a new version of the patch that restores the original signal mask only
after executing signal handlers (if any).  This is similar to what is done in
sigsuspend() and deals correctly with the case where pselect() is interrupted by
a signal blocked in the original mask.

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