5 POSIX specification: @url{http://www.opengroup.org/susv3xsh/poll.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
15 This function doesn't work on special files like @file{/dev/null} and ttys like
16 @file{/dev/tty} on some platforms:
17 MacOS X 10.4.0, AIX 5.3.
20 Portability problems not fixed by Gnulib: