--- m_obj.c~	Sat Dec 15 08:20:57 2001
+++ m_obj.c	Mon Apr 22 12:00:06 2002
@@ -411,16 +411,21 @@
     if (!i) return (0);
     to = &i->i_pd;
 doit:
+    	/* append it to the end of the list and inhibit duplicates */
+    if ((oc2 = o->o_connections))
+    {
+	if (oc2->oc_to == to) return (0);
+    	while (oc2->oc_next)
+	{
+	    oc2 = oc2->oc_next;
+	    if (oc2->oc_to == to) return (0);
+	}
+    }
     oc = (t_outconnect *)t_getbytes(sizeof(*oc));
     oc->oc_next = 0;
     oc->oc_to = to;
-    	/* append it to the end of the list */
-    	/* LATER we might cache the last "oc" to make this faster. */
-    if ((oc2 = o->o_connections))
-    {
-    	while (oc2->oc_next) oc2 = oc2->oc_next;
+    if (oc2)
     	oc2->oc_next = oc;
-    }
     else o->o_connections = oc;
     if (o->o_sym == &s_signal) canvas_update_dsp();