GNU bug report logs - #41846
[PATCH] Fix 24-bit direct TTY colors on FreeBSD

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From: Jan Beich <jbeich <at> FreeBSD.org>
To: 41846 <at> debbugs.gnu.org
Subject: bug#41846: [PATCH] Fix 24-bit direct TTY colors on FreeBSD
Date: Sun, 14 Jun 2020 06:49:31 +0200

[Message part 1 (text/plain, inline)]

FreeBSD only ships with /etc/termcap. However, termcap is limited to 2
arguments while RGB colors require 3. To support RGB add a fallback via
COLORTERM, using semicolon version for better compatibility.

https://unix.stackexchange.com/questions/512845/emacs-with-24bit-terminal-support-on-freebsd
https://gist.github.com/XVilka/8346728#true-color-detection
https://github.com/alacritty/alacritty/issues/1485

Test case:
$ pkg install emacs-devel-nox alacritty libxkbcommon mesa-dri dejavu
$ alacritty
$ env -u COLORTERM emacs -nw -Q -f list-colors-display
$ env COLORTERM=rxvt emacs -nw -Q -f list-colors-display
$ env COLORTERM=truecolor emacs -nw -Q -f list-colors-display

[rgb.colorterm.diff (text/plain, attachment)]

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