--- qlandkartegt-1.8.1/src/CDeviceGPSD.cpp~	2014-08-08 11:53:27.000000000 +0200
+++ qlandkartegt-1.8.1/src/CDeviceGPSD.cpp	2019-11-03 16:25:35.889558025 +0100
@@ -212,7 +212,9 @@
             }                    // if
             else if( FD_ISSET( gpsdata->gps_fd, &fds ) )
             {
-#if GPSD_API_MAJOR_VERSION >= 5
+#if GPSD_API_MAJOR_VERSION >= 6
+                gps_read( gpsdata, NULL, 0 );
+#elif GPSD_API_MAJOR_VERSION >= 5
                 gps_read( gpsdata );
 #else
                 gps_poll( gpsdata );