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-rw-r--r--libs/ardour/ardour/io.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libs/ardour/ardour/io.h b/libs/ardour/ardour/io.h
index db0f2c3cf8..ae3865168e 100644
--- a/libs/ardour/ardour/io.h
+++ b/libs/ardour/ardour/io.h
@@ -30,6 +30,7 @@
#include "pbd/undo.h"
#include "pbd/statefuldestructible.h"
#include "pbd/controllable.h"
+#include "pbd/enum_convert.h"
#include "ardour/ardour.h"
#include "ardour/automation_control.h"
@@ -258,4 +259,8 @@ class LIBARDOUR_API IO : public SessionObject, public Latent
} // namespace ARDOUR
+namespace PBD {
+ DEFINE_ENUM_CONVERT (ARDOUR::IO::Direction)
+}
+
#endif /*__ardour_io_h__ */