Fix build after zyn update

source/native-plugins/zynaddsubfx-src.cpp

@@ -45,6 +45,7 @@ extern "C" {
 }
 
 // rtosc includes
+#include "zynaddsubfx/rtosc/cpp/automations.cpp"
 #include "zynaddsubfx/rtosc/cpp/midimapper.cpp"
 #include "zynaddsubfx/rtosc/cpp/miditable.cpp"
 #undef RTOSC_INVALID_MIDI

source/native-plugins/zynaddsubfx/rtosc/automations.h

@@ -1,6 +1,7 @@
 #include <rtosc/ports.h>
 #include <rtosc/rtosc.h>
 #include <cassert>
+#pragma once
 namespace rtosc {
 struct AutomationMapping
 {