Building terminal.c from sources causes ~T~B characters to show up

[jgarte]

Hi,

I tried building terminal.c with gcc and guix instead of using the pre-compiled shared object binary files in the current repo and I get the below ~T~B terminal characters.

I am opening this discussion to see if someone has any ideas for how I can debug what the issue might be exactly.

Below are two screenshots of the issue:

Here is the Guix package definition that shows the gcc command that I called to compile terminal.c along with all the dependencies that are available for the package:

https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/text-editors.scm?id=master#n194

[jgarte]

I will try soonish to compile terminal.c without Guix on Fedora to see if anything changes in that bug that I am experiencing.

[cxxxr]

lem/frontends/ncurses/style.lisp

Line 47 in 7b380ea

(make-style :border-shapes '("╭" "─" "╮" "│" "╯" "─" "╰" "│" "├" "┤")

I think your terminal can't see these characters.

What happens if you change the LANG environment variable?

TERM=xterm-256color
LANG=en_US.UTF-8

[jgarte]

[jgarte]

The odd thing is that if I create an empty guix shell, and run lem inside it, the characters go away...

[jgarte]

I tried diffing the difference between my regular shell and the guix shell subshell but the only thing I can tell that is different is that SHLVL is incremented by 1 🫠

SHLVL=1 -> SHLVL=2

[jgarte]

I also get the same ~T~B characters with lem --interactive sdl2: