Index: portage-2.0/pym/portage_exec.py
===================================================================
--- portage-2.0.orig/pym/portage_exec.py
+++ portage-2.0/pym/portage_exec.py
@@ -156,6 +156,11 @@ def spawn(mycommand,env={},opt_name=None
 			pass
 
 		try:
+			if env.has_key("DEBUG_ENV_PICKLE"):
+				import pickle
+				pickle_file=file(env["DEBUG_ENV_PICKLE"],"w")
+				pickle.dump(env,pickle_file)
+				pickle_file.close()
 			#print "execing", myc, myargs
 			os.execve(myc,myargs,env)
 		except SystemExit, e: