diff --git a/m4/nc b/m4/nc
index 5af40e12..a7a72a44 160000
--- a/m4/nc
+++ b/m4/nc
@@ -1 +1 @@
-Subproject commit 5af40e12a2b18426a5c595937c71324315a4fbcd
+Subproject commit a7a72a4412ca83570de6a12fc15fc52d78083b1b