From 071db1ecbc1f5e5b718ebd13428510afbc3ab3b5 Mon Sep 17 00:00:00 2001
From: Melvin Vermeeren <mail@mel.vin>
Date: Sat, 12 May 2018 22:39:49 +0200
Subject: [PATCH] correctly set location for cpp domain log

"Duplicate declarion" warning, name variant is missing the location=
specifier causing string formatting to fail

closes #4962
---
 sphinx/domains/cpp.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sphinx/domains/cpp.py b/sphinx/domains/cpp.py
index 34385f9e6..fe339b153 100644
--- a/sphinx/domains/cpp.py
+++ b/sphinx/domains/cpp.py
@@ -6055,7 +6055,7 @@ class CPPDomain(Domain):
                     msg = "Duplicate declaration, also defined in '%s'.\n"
                     msg += "Name of declaration is '%s'."
                     msg = msg % (ourNames[name], name)
-                    logger.warning(msg, docname)
+                    logger.warning(msg, location=docname)
                 else:
                     ourNames[name] = docname