diff --git a/m4/nc b/m4/nc
index a7a72a4..ab01cbf 160000
--- a/m4/nc
+++ b/m4/nc
@@ -1 +1 @@
-Subproject commit a7a72a4412ca83570de6a12fc15fc52d78083b1b
+Subproject commit ab01cbf966c2f0a09e7740db56f50827afe284ac