1 files changed, 4 insertions, 1 deletions
diff --git a/libs/canvas/canvas/flag.h b/libs/canvas/canvas/flag.h
index 6664524a19..0975d9373e 100644
--- a/libs/canvas/canvas/flag.h
+++ b/libs/canvas/canvas/flag.h
@@ -17,6 +17,7 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include "canvas/visibility.h"
 #include "canvas/group.h"
 #include "canvas/types.h"
 
@@ -26,13 +27,15 @@ class Text;
 class Line;
 class Rectangle;
 
-class Flag : public Group
+class LIBCANVAS_API Flag : public Group
 {
 public:
 	Flag (Group *, Distance, Color, Color, Duple);
 
 	void set_text (std::string const &);
 	void set_height (Distance);
+
+        bool covers (Duple const &) const;
 	
 private:
 	Distance _height;