ptsname
=======

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

Gnulib module: ptsname

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: Mac OS X 10.3, OpenBSD 3.8, Minix 3.1.8, mingw, MSVC 9, BeOS.

Portability problems not fixed by Gnulib:

  * This function is not declared on some platforms: IRIX 5.3.

  * On Solaris 11 2010-11, this function fails on all BSD-style /dev/pty* device files.

  * This function is not thread-safe on some platforms: Cygwin 1.7.9. Likewise, the gnulib replacement is not thread-safe.

Note that the Gnulib module ptsname_r is a version of this function that is more likely to be thread-safe.