From b103129ea600bfb67b0ed35b760a09e2f962985a Mon Sep 17 00:00:00 2001
From: Michal Nowak <mnowak@isc.org>
Date: Wed, 25 Mar 2026 10:39:15 +0100
Subject: [PATCH] Set User-Agent for Sphinx to fix gitlab.gnome.org

The linkcheck started to fail because of a new check on gitlab.gnome.org
that now forbids Sphinx User-Agent, returnin 406 HTTP status.

    (       chapter10: line  115) broken    https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home - 406 Client Error: Not Acceptable for url: https://gitlab.gnome.org/GNOME/libxml2/-/wikis/home

(cherry picked from commit 617471d85d60309e6b970d311fa45f677afb4ade)
---
 doc/arm/conf.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doc/arm/conf.py b/doc/arm/conf.py
index c28ddfaa73..b38206663e 100644
--- a/doc/arm/conf.py
+++ b/doc/arm/conf.py
@@ -169,6 +169,8 @@ release = version
 
 # -- General configuration ---------------------------------------------------
 
+user_agent = "Mozilla/5.0"
+
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.