Started on the 2.1a2 installer.
diff --git a/Mac/Distributions/binary.exclude b/Mac/Distributions/binary.exclude
index 630a07b..c0038c7 100644
--- a/Mac/Distributions/binary.exclude
+++ b/Mac/Distributions/binary.exclude
@@ -28,3 +28,5 @@
 Makefile*
 Setup.in
 [(]*[)]
+.DS_Store
+*.cp