Resolve "Adapt to new emplace() API"

Closes #4 (closed)

include/gnss/processor/processor_gnss_fix.h

@@ -4,6 +4,7 @@
 // Wolf includes
 #include "core/processor/processor_base.h"
 #include "gnss/capture/capture_gnss_fix.h"
+#include "gnss/sensor/sensor_gnss.h"
 
 // Std includes
 
@@ -36,7 +37,7 @@ class ProcessorGnssFix : public ProcessorBase
         virtual bool voteForKeyFrame();
 
     private:
-        void emplaceFactor(FeatureBasePtr& ftr_ptr);
+        FactorBasePtr emplaceFactor(FeatureBasePtr& ftr_ptr);
         bool rejectOutlier(FactorBasePtr ctr_ptr);
 
     public:
@@ -46,4 +47,4 @@ class ProcessorGnssFix : public ProcessorBase
 
 } // namespace wolf
 
-#endif //WOLF_PROCESSOR_GPS_H
+#endif //WOLF_PROCESSOR_GNSS_FIX_H