Quoting gcc-4.8.2
> espurna/sensors/BaseAnalogEmonSensor.h:19:7: note: 'BaseAnalogEmonSensor' is not literal because:
> class BaseAnalogEmonSensor : public BaseEmonSensor {
> ^
> espurna/sensors/BaseAnalogEmonSensor.h:19:7: note: 'BaseAnalogEmonSensor' has a non-trivial destructor