--- a/config.h.in	Sat Mar 05 18:04:48 2016 +0200
+++ b/config.h.in	Wed Mar 16 01:53:56 2016 +0200
@@ -37,6 +37,9 @@
 // define this, if your loudmouth have lm_ssl_set_cipher_list ()
 #cmakedefine HAVE_LM_SSL_SET_CIPHER_LIST
 
+// define this, if your loudmouth have LmMessageNodeAttribute
+#cmakedefine HAVE_LM_MESSAGE_NODE_ATTRIBUTE
+
 // building against lua 5.1
 #cmakedefine LUA51_COMPATIBILITY