pselect
=======

POSIX specification:
 http://www.opengroup.org/onlinepubs/9699919799/functions/pselect.html

Gnulib module: ---

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw, MSVC 9, Interix 3.5, BeOS.

Portability problems not fixed by Gnulib:

  * When the SIGMASK argument is nonnull on platforms that do not natively support this function, race conditions are possible when its gnulib implementation temporarily modifies the signal mask, and the behavior is unspecified in a multi-threaded process.