add override

include/gnss/processor/processor_gnss_fix.h

@@ -81,13 +81,13 @@ class ProcessorGnssFix : public ProcessorBase
         *
         * Returns true if the key frame should be stored
         */
-        virtual bool storeKeyFrame(FrameBasePtr);
+        virtual bool storeKeyFrame(FrameBasePtr) override;
 
         /** \brief store capture
         *
         * Returns true if the capture should be stored
         */
-        virtual bool storeCapture(CaptureBasePtr);
+        virtual bool storeCapture(CaptureBasePtr) override;
 
         virtual bool voteForKeyFrame() const override;