Add comment to Distutil files about requiring 1.5.2 compatibility, as
    suggested by PEP 291.
diff --git a/Lib/distutils/mwerkscompiler.py b/Lib/distutils/mwerkscompiler.py
index 8f62bf7..d546de1 100644
--- a/Lib/distutils/mwerkscompiler.py
+++ b/Lib/distutils/mwerkscompiler.py
@@ -4,6 +4,10 @@
 for MetroWerks CodeWarrior on the Macintosh. Needs work to support CW on
 Windows."""
 
+# This module should be kept compatible with Python 1.5.2.
+
+__revision__ = "$Id$"
+
 import sys, os, string
 from types import *
 from distutils.errors import \