bug#17839: 24.4.50; read-passwd echoes password input in non-interactive sessions

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Date: Fri, 11 Jul 2014 11:15:14 +0200
> Cc: Andreas Schwab <schwab@suse.de>, 17839@debbugs.gnu.org,
>       Sebastian Wiesner <swiesner@lunaryorn.com>
> 
> OK. There is now `read-hide-char', which triggers it. Users can let-bind
> it to the character they prefer for hiding. This will be used in
> `read-passwd', choosing the default ?. if it is not let-bound already.
> 
> >> +      else if (hide_chars && (c == 127)) /* DEL */
> >> +  {
> >> +    /* Unfortunately, we cannot edit stdout.  */
> >> +    // fprintf (stdout, "%c", c);
> >> +    /* Hmm, this doesn't work for multi-byte characters.  */
> >> +    (len > 0) && len--;
> >> +  }
> >
> > I don't think that's worth the trouble.
> 
> I've removed this.
> 
> The patch is committed to the trunk as revision 117510.

Which breaks the MS-Windows build, of course, since Windows doesn't
have termios.