patch 8.2.3420: _REENTRANT defined more than once Commit: https://github.com/vim/vim/commit/6b9efdde7828b3317b64f38bd90fb5a784a654c0 Author: Christian Brabandt <cb@256bit.org> Date: Thu Sep 9 17:14:50 2021 +0200 patch 8.2.3420: _REENTRANT defined more than once Problem: _REENTRANT defined more than once. Solution: Fix configure script. (Christian Brabandt, closes https://github.com/vim/vim/issues/8852)

#!/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