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-rw-r--r--libs/pbd/pbd/stateful_diff_command.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/libs/pbd/pbd/stateful_diff_command.h b/libs/pbd/pbd/stateful_diff_command.h
index 2a213d7a17..2187c727ed 100644
--- a/libs/pbd/pbd/stateful_diff_command.h
+++ b/libs/pbd/pbd/stateful_diff_command.h
@@ -22,6 +22,8 @@
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>
+
+#include "pbd/libpbd_visibility.h"
#include "pbd/command.h"
namespace PBD
@@ -33,7 +35,7 @@ class PropertyList;
/** A Command which stores its action as the differences between the before and after
* state of a Stateful object.
*/
-class StatefulDiffCommand : public Command
+class LIBPBD_API StatefulDiffCommand : public Command
{
public:
StatefulDiffCommand (boost::shared_ptr<StatefulDestructible>);