From a37c462d736db0a74dfac630526250c663b79dd3 Mon Sep 17 00:00:00 2001
From: shun-iwasawa <shun.iwasawa@ghibli.jp>
Date: Feb 02 2021 08:37:43 +0000
Subject: fix missing orientation dtor


---

diff --git a/toonz/sources/include/orientation.h b/toonz/sources/include/orientation.h
index 86ac2aa..5f1130f 100644
--- a/toonz/sources/include/orientation.h
+++ b/toonz/sources/include/orientation.h
@@ -268,6 +268,8 @@ public:
   virtual int cellHeight() const     = 0;
   virtual int foldedCellSize() const = 0;
 
+  virtual ~Orientation() {}
+
 protected:
   void addRect(PredefinedRect which, const QRect &rect);
   void addLine(PredefinedLine which, const QLine &line);