spwaterfall: removing unused variable to rid compiler of annoying warning
@@ -398,7 +398,7 @@ int SPWATERFALL(_export_gnu)(SPWATERFALL() _q,
fprintf(fid,"set xlabel 'Frequency [%cHz]'\n", unit);
// target xtics spacing roughly every 60-80 pixels
float xn = ((float) _q->width * 0.8f) / 70.0f; // rough number of tics
- float xs = _q->sample_rate * g / xn; // normalized spacing
+ //float xs = _q->sample_rate * g / xn; // normalized spacing
float xt = 1.0f; // round to nearest 1, 2, 5, or 10
// potential xtic spacings
float spacing[] = {0.01,0.02,0.05,0.1,0.2,0.5,1.0,2.0,5.0,10.0,20.0,50.0,100.0,200.0,500.0,-1.0f};
