add missing symbol for windows compile

diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc
index 52e313d87955b100b96264183516896290fbc4a6..308f6a4fcece591d1dcbb18bdc5b5673e5463814 100644 (file)
--- a/libs/ardour/luabindings.cc
+++ b/libs/ardour/luabindings.cc
@@ -179,6 +179,7 @@ CLASSKEYS(ARDOUR::SessionConfiguration);
 CLASSKEYS(PBD::ID);
 CLASSKEYS(PBD::Configuration);
 CLASSKEYS(PBD::PropertyChange);
+CLASSKEYS(PBD::StatefulDestructible);
 
 CLASSKEYS(Evoral::Beats);
 CLASSKEYS(Evoral::Event<framepos_t>);