diff --git a/doc/common b/doc/common
index 9fb378e..2b79632 160000
--- a/doc/common
+++ b/doc/common
@@ -1 +1 @@
-Subproject commit 9fb378eb77b7bb5004580afcb2830671d68dbf8a
+Subproject commit 2b79632b6ef97efb8fa429437b0879532e8d2857
diff --git a/m4 b/m4
index 24bcca6..aa2a16f 160000
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit 24bcca60b69b0ce162f63377e621de5cf53dcf76
+Subproject commit aa2a16fefaf06f6f7c343ea85c7aabd5310ca826