fdopendir
=========

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

Gnulib module: fdopendir

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: glibc 2.3.6, Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin 1.5.x, mingw, MSVC 9, Interix 3.5, BeOS. But the replacement function is not safe to be used in libraries and is not multithread-safe.  Also, the replacement does not guarantee that dirfd(fdopendir(n))==n (dirfd might fail, or return a different file descriptor than n).

  * This function exists but is not declared on some platforms: FreeBSD 7.3.

  * This function does not reject non-directory file descriptors on some platforms: GNU/Hurd.

  * This function mistakenly closes non-directory file descriptors on some platforms: FreeBSD 8.1.

Portability problems not fixed by Gnulib: