Add filecmp to list of bundled modules. Closes #8431. [skip ci]
diff --git a/packaging/createmsi.py b/packaging/createmsi.py
index 7156b63..e7c81bb 100644
--- a/packaging/createmsi.py
+++ b/packaging/createmsi.py
@@ -140,6 +140,7 @@
                 'distutils.version',
                 'distutils.command.build_ext',
                 'distutils.command.build',
+                'filecmp',
                 ]
 
     def build_dist(self):