From bbaca488250842faf7ef4f2b9c17cca156771f3e Mon Sep 17 00:00:00 2001
From: Philippe Antoine <contact@catenacyber.fr>
Date: Mon, 17 May 2021 16:27:49 +0200
Subject: [PATCH] doc: update sphinx api to use add_css_file

instead of deprecated add_stylesheet

(cherry picked from commit 95f225e8fbd5d352a8ca86cd317f908034966ed4)
---
 doc/userguide/conf.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/doc/userguide/conf.py b/doc/userguide/conf.py
index 95670fc468..baf4726e62 100644
--- a/doc/userguide/conf.py
+++ b/doc/userguide/conf.py
@@ -135,7 +135,10 @@ if not on_rtd:
     except:
         html_theme = 'default'
     def setup(app):
-        app.add_stylesheet('css/suricata.css')
+        if hasattr(app, 'add_css_file'):
+            app.add_css_file('css/suricata.css')
+        else:
+            app.add_stylesheet('css/suricata.css')
 else:
     html_context = {
         'css_files': [