diff --git a/wafsrc b/wafsrc
index 4389e44..68bf386 160000
--- a/wafsrc
+++ b/wafsrc
@@ -1 +1 @@
-Subproject commit 4389e4400e6b82a3f91aa669f66711e703ef1482
+Subproject commit 68bf3867df33c04c944e8905820fc4cca4b663d1