change API for GainControl, VCA and VCAManager

[ardour.git] / libs / ardour / midiport_manager.cc

diff --git a/libs/ardour/midiport_manager.cc b/libs/ardour/midiport_manager.cc
index 7f3f05a7db718cbf06410f09159538fb180e73d4..5b97b4090ae6a95a06e1e88022b05c5ac42b8ce8 100644 (file)
--- a/libs/ardour/midiport_manager.cc
+++ b/libs/ardour/midiport_manager.cc
@@ -111,7 +111,7 @@ MidiPortManager::create_ports ()
 void
 MidiPortManager::set_midi_port_states (const XMLNodeList&nodes)
 {
-       XMLProperty* prop;
+       XMLProperty const * prop;
        typedef map<std::string,boost::shared_ptr<Port> > PortMap;
        PortMap ports;
        const int version = 0;