diff -r a195f11ed1a2 -r ea6174c96ae1 mercurial/util.py
--- a/mercurial/util.py	Tue Jan 02 22:40:52 2007 +0100
+++ b/mercurial/util.py	Fri Jan 05 00:01:51 2007 -0200
@@ -722,7 +722,7 @@
         os.symlink(".", name)
         os.unlink(name)
         return True
-    except OSError:
+    except (OSError, AttributeError):
         return False
 
 def linkfunc(path, fallback):