From f363ef400e93ddb96a77a1d2cedfc8dc94639e90 Mon Sep 17 00:00:00 2001
From: Takayuki Shimizukawa <shimizukawa@gmail.com>
Date: Sat, 12 Jan 2013 22:30:40 +0900
Subject: [PATCH] figure-caption work-around set int or None to node.line
 instead of empty string.

---
 sphinx/util/nodes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sphinx/util/nodes.py b/sphinx/util/nodes.py
index 65accbf20..acd2afe91 100644
--- a/sphinx/util/nodes.py
+++ b/sphinx/util/nodes.py
@@ -57,7 +57,7 @@ def extract_messages(doctree):
         # https://sourceforge.net/tracker/?func=detail&aid=3599485&group_id=38414&atid=422032
         if isinstance(node, nodes.caption) and not node.source:
             node.source = node.parent.source
-            node.line = ''  #need fix docutils to get `node.line`
+            node.line = 0  #need fix docutils to get `node.line`
 
         if not node.source:
             continue # built-in message