make session/Config now responsible for adding/removing a monitor section

diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index 874fa30f11a932e09cabd7b65f432ca332b13cfa..8809ab388c12a7debdb3f61236d67db4202b61ec 100644 (file)
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -4135,6 +4135,13 @@ Session::config_changed (std::string p, bool ours)
                ltc_tx_parse_offset();
        } else if (p == "auto-return-target-list") {
                follow_playhead_priority ();
+       } else if (p == "use-monitor-bus") {
+               bool yn = Config->get_use_monitor_bus();
+               if (yn && !_monitor_out) {
+                       add_monitor_section ();
+               } else if (!yn && _monitor_out) {
+                       remove_monitor_section ();
+               }
        }
 
        set_dirty ();