patch 8.2.4573: a nested function is compiled for debugging without context Commit: https://github.com/vim/vim/commit/96923b7a14839e7505b194ab76e1f15bb88fa7ed Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 15 15:57:04 2022 +0000 patch 8.2.4573: a nested function is compiled for debugging without context Problem: A nested function (closure) is compiled for debugging without context. Solution: Check if a nested function is marked for debugging before compiling it. Give an error when trying to compile a closure without its context. (closes #9951)

#!/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