diff -r 138978f20180 -r 647e3b0c8751 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Mon Apr 15 01:22:15 2013 +0900
+++ b/mercurial/scmutil.py	Mon Apr 15 01:22:15 2013 +0900
@@ -260,6 +260,9 @@
     def rename(self, src, dst):
         return util.rename(self.join(src), self.join(dst))
 
+    def readlink(self, path):
+        return os.readlink(self.join(path))
+
     def stat(self, path=None):
         return os.stat(self.join(path))