@section @code{tcdrain}
@findex tcdrain
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/tcdrain.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/tcdrain.html}
Gnulib module: ---
@itemize
@item
This function is missing on some platforms:
-mingw.
+mingw, MSVC 9.
@item
On some platforms, @code{tcdrain} on a non-tty fails with @code{errno} set to
@code{EINVAL} or, on MacOS X, also @code{EOPNOTSUPP} or @code{ENODEV}, rather