1 files changed, 3 insertions, 0 deletions
diff --git a/FL/Fl_Tile.H b/FL/Fl_Tile.H
index 64a3ba530..e9e8c8b0c 100644
--- a/FL/Fl_Tile.H
+++ b/FL/Fl_Tile.H
@@ -25,6 +25,9 @@
 */
 
 class FL_EXPORT Fl_Tile : public Fl_Group {
+  friend class Fl_Window_Driver;
+private:
+  static bool in_drag_intersection_;
 public:
   int handle(int event) FL_OVERRIDE;
   Fl_Tile(int X, int Y, int W, int H, const char *L=0);