Re: use SLIME/SDL2 from the VT

[Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

> Can you use SLIME/SDL2 from the Linux VT and pipe the
> graphics to X, similar to what happens (sometimes) with the
> shell tools if you set the DISPLAY=":0" environmental, or if
> the tool comes with a -d option specifically for this (which
> SBCL don't)?
>
> The below attempt doesn't work, what happens is that with or
> without it SBCL tries and actually manages to write
> something to the VT framebuffer, but then crashes.
>
> Can it be done?
>
> (setq slime-lisp-implementations
>       '((sbcl ("sbcl" "--core" "/home/incal/cl/sbcl.core-with-swank")
>               :env ("DISPLAY=\":0\"")
>               :init (lambda (port-file _)
>                       (format "(swank:start-server %S)\n" port-file) ))))

I works with

  $ DISPLAY=":0" emacs -nw

Note the -nw, because without it, the whole Emacs instance
will be the GUI version, in X.

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