#include <set>
#include <boost/utility.hpp>
+#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
#include "ardour/plugin.h"
class Plugin;
-class PluginManager : public boost::noncopyable {
+class LIBARDOUR_API PluginManager : public boost::noncopyable {
public:
static PluginManager& instance();