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bug#35300: 27.0.50; emacsclient on remote sessions no longer works

From: Óscar Fuentes
Subject: bug#35300: 27.0.50; emacsclient on remote sessions no longer works
Date: Sat, 20 Apr 2019 21:52:07 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

Paul Eggert <address@hidden> writes:

> I installed into master the attached patch, which should cause
> emacsclient to output something like the following in your situation:
> emacsclient: Should XDG_RUNTIME_DIR='/run/user/1000' be in the environment?
> emacsclient: (Be careful: XDG_RUNTIME_DIR is security-related.)
> I hope this helps.

I have the same reservations expressed by Glenn in emacs-devel, but this
would help me in the wrong way when emacsclient failed on me.

Seeing the message, I'll try this quick hack:

$ XDG_RUNTIME_DIR='/run/user/1000' emacsclient

and that probably would makes things "work".

A more educative message would be something like:

"The environment variable XDG_RUNTIME_DIR is not set and, since version
27, Emacs depends on it to communicate with the server. Usually this
variable is automatically set by the system at log-in. Check any
configuration that might affect how the environment is build when a user

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