From 39bd7dff922f283e1ac05939120e5ab77a8bbdd7 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Mon, 9 Mar 2009 15:04:32 +0100
Subject: [PATCH] Encode graphviz input to utf-8.

---
 sphinx/ext/graphviz.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sphinx/ext/graphviz.py b/sphinx/ext/graphviz.py
index 084797b7f4..d51e2ed5fe 100644
--- a/sphinx/ext/graphviz.py
+++ b/sphinx/ext/graphviz.py
@@ -115,6 +115,9 @@ def render_dot(self, code, options, format, prefix='graphviz'):
                           self.builder.config.graphviz_dot)
         self.builder._graphviz_warned_dot = True
         return None
+    # graphviz expects UTF-8 by default
+    if isinstance(code, unicode):
+        code = code.encode('utf-8')
     stdout, stderr = p.communicate(code)
     if p.returncode != 0:
         raise GraphvizError('dot exited with error:\n[stderr]\n%s\n'