patch 8.2.3778: lambda debug test fails in some configurations Commit: https://github.com/vim/vim/commit/9537e37b1124a0584e5f2af10756baca78bc73a1 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Dec 10 21:05:53 2021 +0000 patch 8.2.3778: lambda debug test fails in some configurations Problem: Lambda debug test fails in some configurations. Solution: Check feature in a legacy function.

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service