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

[Lars Ingebrigtsen]

Matthew Leach <matthew@mattleach.net> writes:

>> I simply tried "env | fgrep LINES" and I do see the variable, although
>> it wasn't there before I launched Emacs.
>
> I would expect the variable to be there when inside Emacs as it has
> exported it.  You should find that it won't exist if ran outside Emacs,
> for example in xterm.

I tried this in my bash here (under the "Terminal" program in Debian):

larsi@marnie:~/src/emacs/trunk$ set | grep LINES
LINES=24
larsi@marnie:~/src/emacs/trunk$ set | grep COLUMNS
COLUMNS=80

So they're in my env at least.

But I see I have this in my very ancient ~/.bashrc:

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize


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   bloggy blog: http://lars.ingebrigtsen.no