--- a/mercurial/util.py	Tue Feb 13 10:02:07 2007 -0200
+++ b/mercurial/util.py	Thu Feb 15 05:18:23 2007 -0200
@@ -363,6 +363,9 @@
             except OSError:
                 break
             if samestat(name_st, root_st):
+                if not rel:
+                    # name was actually the same as root (maybe a symlink)
+                    return ''
                 rel.reverse()
                 name = os.path.join(*rel)
                 audit_path(name)