diff -r 150afe6becf6 -r d8442fc0da8d mercurial/util.py
--- a/mercurial/util.py	Thu Jun 21 13:09:01 2007 -0500
+++ b/mercurial/util.py	Thu Jun 21 22:19:41 2007 +0200
@@ -1100,6 +1100,9 @@
                 return p_name
         return default
 
+    def set_signal_handler():
+        pass
+
 def find_exe(name, default=None):
     '''find path of an executable.
     if name contains a path component, return it as is.  otherwise,