--- a/QTfrontend/ui/page/pagescheme.h	Mon Jun 22 22:09:00 2020 +0300
+++ b/QTfrontend/ui/page/pagescheme.h	Tue Jun 23 02:04:00 2020 +0300
@@ -107,6 +107,7 @@
         void checkDupe();
 
     private slots:
+        void worldEdgeChanged(int);
         void schemeSelected(int);
         void dataChanged(QModelIndex topLeft, QModelIndex bottomRight);
 };