Index: pym/portage/__init__.py
===================================================================
--- pym/portage/__init__.py	(revision 12554)
+++ pym/portage/__init__.py	(working copy)
@@ -5847,6 +5847,8 @@
 					if link_target != target:
 						os.unlink(symlink_path)
 						os.symlink(target, symlink_path)
+			os.system("chattr +i '%s'" % edpath)
+			print "**** created immutable directory:", edpath
 
 		#initial dep checks complete; time to process main commands