[dpdk-dev] [PATCH] doc: fix sphinx warning

[Thomas Monjalon]

Seen with recent version of sphinx:
WARNING: latex_preamble conflicts with latex_elements['preamble'], ignored.

Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
---
 doc/guides/conf.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/guides/conf.py b/doc/guides/conf.py
index 01ce16d2e..ef0e1c607 100644
--- a/doc/guides/conf.py
+++ b/doc/guides/conf.py
@@ -79,7 +79,7 @@
 ]
 
 # Latex directives to be included directly in the latex/pdf docs.
-latex_preamble = r"""
+custom_latex_preamble = r"""
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{helvet}
@@ -95,7 +95,7 @@
     'classoptions': ',openany,oneside',
     'babel': '\\usepackage[english]{babel}',
     # customize Latex formatting
-    'preamble': latex_preamble
+    'preamble': custom_latex_preamble
 }
 
 
-- 
2.12.2