From 0663f73a992643c82b346e643012401b6cb2932f Mon Sep 17 00:00:00 2001
From: Andre Anjos <andre.dos.anjos@gmail.com>
Date: Tue, 25 Jun 2019 10:46:11 +0200
Subject: [PATCH] [doc] Update linux installation to include basic X11
 libraries (see beat/beat.web#530)

---
 doc/linux.rst | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/doc/linux.rst b/doc/linux.rst
index 1f0af097..434d7a2d 100644
--- a/doc/linux.rst
+++ b/doc/linux.rst
@@ -199,6 +199,18 @@ https://backports.debian.org.  To install the newest git version, after an
    $ apt-get -t stretch-backports install "git"
 
 
+X11
+===
+
+Some utilities such as ``dot`` (graphviz) require X11 support.  If you intend
+to make use of the ``shell`` builder and ``graphviz``, you must install basic
+X11 support.  Just run the following command as root to fix this:
+
+.. code-block:: sh
+
+   $ apt install libxrender1 libxext6
+
+
 Crontabs
 ========
 
-- 
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