diff -up quagga-1.1.0/lib/command.c.orig quagga-1.1.0/lib/command.c
--- quagga-1.1.0/lib/command.c.orig	2016-12-07 16:52:13.000000000 -0700
+++ quagga-1.1.0/lib/command.c	2016-12-07 16:52:20.000000000 -0700
@@ -638,9 +638,11 @@ install_element (enum node_type ntype, s
   
   if (hash_lookup (cnode->cmd_hash, cmd) != NULL)
     {
+#if 0
       fprintf (stderr, 
                "Multiple command installs to node %d of command:\n%s\n",
                ntype, cmd->string);
+#endif
       return;
     }