poll.h
======

POSIX specification:
 http://www.opengroup.org/onlinepubs/9699919799/basedefs/poll.h.html

Gnulib module: poll-h

Portability problems fixed by Gnulib:

  * This header file is missing on some platforms: mingw, MSVC 9, BeOS.

Portability problems not fixed by Gnulib:

  * This header file does not defined nfds_t on some platforms: IRIX 5.3.