Re: Daemon/Client, Multiple Terminals, and `tty-erase-char'

[Eli Zaretskii]

> From: Andreas Schwab <address@hidden>
> Cc: address@hidden, Alexander Shukaev <address@hidden>
> Date: Mon, 16 Dec 2019 17:02:56 +0100
> 
> On Dez 16 2019, Eli Zaretskii wrote:
> 
> > tty-erase-char is a global variable, so it is not per terminal.
> >
> > But I don't think I understand what you mean by "frame refers to a 
> > different value" in this context.  What do you think Emacs does with the 
> > value of this variable, that you need to be specific to a frame?
> 
> Currently, tty-erase-char is set to the ERASE character of the last
> opened terminal.  Since normal-erase-is-backspace-setup-frame is
> normally only called once when the frame is created, this happens to
> work out right.

tty-erase-char is also set whenever init_sys_modes is called, and
many/most of its callers are generally supposed to be called for the
controlling terminal only.  If one of those callers is actually
called, tty-erase-char will be reset to the ERASE character of the
controlling terminal, AFAIU.