From 136151e9499ac8f2f7ec1a169a973d65b15820bb Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sat, 19 Oct 2013 15:43:21 +0200
Subject: untested unbreakage

Signed-off-by: Stanislaw Halik <sthalik@misaki.pl>
---
 ftnoir_tracker_base/ftnoir_tracker_base.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ftnoir_tracker_base')

diff --git a/ftnoir_tracker_base/ftnoir_tracker_base.h b/ftnoir_tracker_base/ftnoir_tracker_base.h
index e9e11b61..66304bd7 100644
--- a/ftnoir_tracker_base/ftnoir_tracker_base.h
+++ b/ftnoir_tracker_base/ftnoir_tracker_base.h
@@ -41,7 +41,7 @@
 // Instances are obtained via factory function.
 struct ITracker
 {
-    virtual ~ITracker() {}
+    virtual ~ITracker() = 0;
     virtual void StartTracker( QFrame* frame ) = 0;
     virtual bool GiveHeadPoseData(double *data) = 0;
 };
-- 
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