From e4b42fe15fbba4882f2dd3b5b38a43db37d5947c Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Sat, 25 Jul 2015 16:51:45 +0200
Subject: [PATCH] Fixes #1923: Use babel features only if the babel latex
 element is nonempty.

---
 CHANGES                 | 3 ++-
 sphinx/writers/latex.py | 8 ++++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/CHANGES b/CHANGES
index 3457994bd..d88d41aed 100644
--- a/CHANGES
+++ b/CHANGES
@@ -33,7 +33,8 @@ Bugs fixed
 * #1949: Use ``safe_getattr`` in the coverage builder to avoid aborting with
   descriptors that have custom behavior.
 * #1915: Do not generate smart quotes in doc field type annotations.
-* #1796, On py3, automated .mo building cause UnicodeDecodeError
+* #1796: On py3, automated .mo building caused UnicodeDecodeError.
+* #1923: Use babel features only if the babel latex element is nonempty.
 
 
 Release 1.3.1 (released Mar 17, 2015)
diff --git a/sphinx/writers/latex.py b/sphinx/writers/latex.py
index c1ba04cab..5d175eae6 100644
--- a/sphinx/writers/latex.py
+++ b/sphinx/writers/latex.py
@@ -342,8 +342,12 @@ class LaTeXTranslator(nodes.NodeVisitor):
             else:
                 language = 'english'
 
-            babel_prefix = '\\addto\\captions%s{' % language
-            babel_suffix = '}'
+            if self.elements['babel']:
+                babel_prefix = '\\addto\\captions%s{' % language
+                babel_suffix = '}'
+            else:
+                babel_prefix = ''
+                babel_suffix = ''
 
         figure = self.builder.config.numfig_format['figure'].split('%s', 1)
         if len(figure) == 1: