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

[Stefan Kangas]

Glenn Morris <rgm@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