diff --git a/submodules/autoconf b/submodules/autoconf
index 0db9c1a1..26cb0918 160000
--- a/submodules/autoconf
+++ b/submodules/autoconf
@@ -1 +1 @@
-Subproject commit 0db9c1a19fbbdbf8728ec8d9c5a020d070ec23b2
+Subproject commit 26cb0918d38d756b7c2a3f82226551f6facee47e