GNU bug report logs - #37564
[PATCH] don't export LINES and COLUMNS env vars in term to fix ncurses applications

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From: Stefan Kangas <stefan <at> marxist.se>
To: Glenn Morris <rgm <at> gnu.org>
Cc: matthew <at> mattleach.net, Eli Zaretskii <eliz <at> gnu.org>, 37564 <at> debbugs.gnu.org
Subject: bug#37564: [PATCH] don't export LINES and COLUMNS env vars in term to fix ncurses applications
Date: Fri, 24 Jan 2020 19:08:32 +0100

Glenn Morris <rgm <at> gnu.org> writes:

> PS for an example of the effect, one can use some of the programs in
> the ncurses-examples from
> https://invisible-island.net/ncurses/ncurses-examples.html
>
> eg "worm".
>
> If I run it in an xfce4-terminal, then maximise the terminal, the worms
> spread over the whole screen.
> If I "export LINES" and COLUMNS beforehand, then the worms don't expand
> beyond the original terminal size.
>
> The same effect is visible in Emacs's M-x term with and without the
> LINES/COLUMNS variables.

BTW, we also have Bug#11432.  Not sure if that should be merged with
this one.

Best regards,
Stefan Kangas

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