diff -Nur XyGrib-1.2.6.old/src/SkewT.h XyGrib-1.2.6/src/SkewT.h
--- XyGrib-1.2.6.old/src/SkewT.h	2019-07-03 01:20:19.000000000 +0400
+++ XyGrib-1.2.6/src/SkewT.h	2020-09-19 19:49:08.026054561 +0400
@@ -16,6 +16,7 @@
 #include <QMainWindow>
 #include <QFrame>
 #include <QPainter>
+#include <QPainterPath>
 #include <QLayout>
 #include <QKeyEvent>
 #include <QPrintDialog>