@section @code{fchownat}
@findex fchownat
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fchownat.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fchownat.html}
Gnulib module: openat
@code{AT_SYMLINK_NOFOLLOW}:
Linux kernel 2.6.17.
@item
+This function does not fail for an empty filename on some platforms:
+Linux with glibc < 2.11.
+@item
This function is missing on some platforms:
-glibc 2.3.6, MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX
+glibc 2.3.6, MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, AIX
5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin 1.5.x, mingw, Interix 3.5, BeOS.
But the replacement function is not safe to be used in libraries and
is not multithread-safe. Also, the replacement may fail to change