diff --git a/autoconf-archive b/autoconf-archive
index 9d65191..e21d39d 160000
--- a/autoconf-archive
+++ b/autoconf-archive
@@ -1 +1 @@
-Subproject commit 9d65191ae8e30ef3dcb54a23b7e503432e147747
+Subproject commit e21d39d7d6debc2f8a9bc91dfde576db24c78b3b