--- a/mercurial/windows.py	Thu Dec 15 16:50:21 2011 -0600
+++ b/mercurial/windows.py	Fri Dec 16 19:05:59 2011 -0600
@@ -131,7 +131,11 @@
 def normpath(path):
     return pconvert(os.path.normpath(path))
 
-normcase = os.path.normcase
+encodinglower = None
+encodingupper = None
+
+def normcase(path):
+    return encodingupper(path)
 
 def realpath(path):
     '''