$OpenBSD: patch-libs_pbd_controllable_cc,v 1.1 2016/03/20 11:58:32 ajacoutot Exp $

Fix build with libsigc++ >=2.8.0

--- libs/pbd/controllable.cc.orig	Sun Mar 20 11:14:35 2016
+++ libs/pbd/controllable.cc	Sun Mar 20 11:16:32 2016
@@ -74,7 +74,7 @@ Controllable::add ()
 {
 	Glib::Mutex::Lock lm (*registry_lock);
 	registry.insert (this);
-	this->GoingAway.connect (mem_fun (this, &Controllable::remove));
+	this->GoingAway.connect (mem_fun (*this, &Controllable::remove));
 }
 
 void
