diff --git a/Makefile.am b/Makefile.am
index 9276a1890d..29c5f2b2ad 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-DISTCHECK_CONFIGURE_OPTIONS = --enable-gtk-doc
+DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
 
 if BUILD_EXTERNAL
 SUBDIRS_EXT = ext
diff --git a/common b/common
index c14ef33a07..21a728cae5 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit c14ef33a0707f6bb6ff1456696c14446178e182b
+Subproject commit 21a728cae512ec8f2753f62ef69e4c286da76003