Add comment to Distutil files about requiring 1.5.2 compatibility, as
    suggested by PEP 291.
diff --git a/Lib/distutils/bcppcompiler.py b/Lib/distutils/bcppcompiler.py
index abe302a..cfbe04a 100644
--- a/Lib/distutils/bcppcompiler.py
+++ b/Lib/distutils/bcppcompiler.py
@@ -11,6 +11,8 @@
 # someone should sit down and factor out the common code as
 # WindowsCCompiler!  --GPW
 
+# This module should be kept compatible with Python 1.5.2.
+
 __revision__ = "$Id$"