--- a/common/autoconf/autogen.sh	Wed Jul 05 18:12:32 2017 +0200
+++ b/common/autoconf/autogen.sh	Thu Jun 07 20:25:06 2012 -0700
@@ -22,5 +22,5 @@
 # questions.
 #
 
-autoconf configure.ac > configure
+autoconf -W all configure.ac > configure
 rm -rf config.status config.log autom4te.cache