4 Declares the functions @code{openpty} and @code{forkpty}.
10 @ref{Pseudo-Terminal Pairs,,Opening a Pseudo-Terminal Pair,libc},
13 @url{http://www.gnu.org/software/libc/manual/html_node/Pseudo_002dTerminal-Pairs.html},
16 @uref{http://www.kernel.org/doc/man-pages/online/pages/man3/openpty.3.html,,man openpty}.
21 Portability problems fixed by Gnulib:
25 Portability problems not fixed by Gnulib:
28 This header file is missing on some platforms:
29 MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw, BeOS.