diff --git a/m4/autoconf-submodule b/m4/autoconf-submodule
index 91cdcdc..58a3529 160000
--- a/m4/autoconf-submodule
+++ b/m4/autoconf-submodule
@@ -1 +1 @@
-Subproject commit 91cdcdce19c9862dc65594ad373b5c425ab3e88f
+Subproject commit 58a3529cff6ae39754cf4e912c0eee7a3e0e7de5