From Sjoerd Mullender <sjoerd@oratrix.nl>:

cmp is not used in freeze, but is imported anyway.  What's worse, cmp
is no longer in the library, so freeze won't work like this.

Tools/freeze/freeze.py

@@ -78,7 +78,6 @@ if it does, the resulting binary is not self-contained.
 
 # Import standard modules
 
-import cmp
 import getopt
 import os
 import string