Add warnings to and deprecated all those Mac modules
diff --git a/Lib/plat-mac/macostools.py b/Lib/plat-mac/macostools.py
index 67bb497..643ba67 100644
--- a/Lib/plat-mac/macostools.py
+++ b/Lib/plat-mac/macostools.py
@@ -4,6 +4,9 @@
 copy(src, dst) - Full copy of 'src' to 'dst'
 """
 
+from warnings import warnpy3k
+warnpy3k("In 3.x, the macostools module is removed.")
+
 from Carbon import Res
 from Carbon import File, Files
 import os