fix logic error that prevent input monitoring during slave wait states

[ardour.git] / gtk2_ardour / meter_patterns.h

diff --git a/gtk2_ardour/meter_patterns.h b/gtk2_ardour/meter_patterns.h
index f505ba37c76775ed7f52723e09f120b224772540..a0685bb50d17fe8934e3fd9b3c6f4128954d67c8 100644 (file)
--- a/gtk2_ardour/meter_patterns.h
+++ b/gtk2_ardour/meter_patterns.h
@@ -28,6 +28,11 @@
 
 #include <sigc++/signal.h>
 
+namespace ARDOUR {
+       class Route;
+       class RouteGroup;
+}
+
 namespace ArdourMeter {
 
 extern sigc::signal<void> ResetAllPeakDisplays;