bug#28800: 25.3.50; Emacs -nw breaks urxvt

[Eli Zaretskii]

[Please keep the bug address on the CC list.]

> From: Aric81 <aric81@inwind.it>
> Date: Sun, 22 Oct 2017 20:28:48 -0700
> 
> On 2017-10-12 01:45 PM, Eli Zaretskii wrote:
> 
>  In GNU Emacs 25.3.50.2 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9) 
> of 2017-09-15 built on lgw01-amd64-022 
> Windowing system distributor 'The X.Org Foundation', version 11.0.11804000 
> System Description: Ubuntu 16.04.3 LTS 
> 
> 
> What is "Emacs 25.3.50"?  Which source code base was it built from?
> Can you try the pretest of Emacs 26 (on alpha.gnu.org) or build the
> emacs-26 branch of the Emacs Git repository?
> 
> I have been able to reproduce this consistently, it is due to my TERM 
> settings:
> 
> export TERM=rxvt-unicode-256color
> emacsclient -a emacs -nw
> - exit emacs -
> 
> After that any mouse click in the terminal will produce garbage.
> 
> If I then export TERM=xterm-256color and do the same, no garbage is produced 
> anymore.
> 
> It seems a regression, this was not happening in emacs 24 (emacs24 package in 
> Ubuntu).

Do you have the corresponding terminfo installed for this terminal?

Please also try the pretest of Emacs 26, it's available from
alpha.gnu.org.