posix_openpt
============

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

Gnulib module: posix_openpt

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: MacOS X 10.3, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, mingw, MSVC 9, Interix 3.5, BeOS. However, the replacement may fail with ENOSYS or ENOENT on some platforms.

Portability problems not fixed by Gnulib:

Note that when using this function to open the master side of a pseudo-terminal, you still need platform dependent code to open the corresponding slave side.  The Gnulib module openpty provides an easy-to-use API that does both at once.