Fixed some warnings

modemm17/M17Demodulator.cpp

@@ -74,7 +74,7 @@ const std::array<float, 150> M17Demodulator::rrc_taps = std::array<float, 150>{
 
 void M17Demodulator::update_values(uint8_t index)
 {
-	correlator.apply([this,index](float t){dev.sample(t);}, index);
+	correlator.apply([this](float t){dev.sample(t);}, index);
 	dev.update();
 	sync_sample_index = index;
 }

sdrgui/gui/spectrumcalibrationpointsdialog.h

@@ -26,7 +26,7 @@
 #include "dsp/spectrumcalibrationpoint.h"
 #include "export.h"
 
-class SpectrumHistogramMarker;
+struct SpectrumHistogramMarker;
 
 namespace Ui {
     class SpectrumCalibrationPointsDialog;