Few fixes for 2020 :)

Makefile

@@ -15,7 +15,7 @@ EXTRACFLAGS=-DHTMLPATH=\"$(SHAREDIR)\"
 endif
 
 CPPFLAGS+=-DMODES_DUMP1090_VERSION=\"$(DUMP1090_VERSION)\"
-CFLAGS+=-O2 -g -Wall -Werror -W
+CFLAGS+=-O2 -g -Wall -Werror -W -Wno-format-truncation
 LIBS=-lpthread -lm
 LIBS_RTL=`pkg-config --libs librtlsdr libusb-1.0`
 CC=gcc

public_html/config.js

@@ -43,7 +43,14 @@ SiteName    = "My Radar Site"; // tooltip of the marker
 // Enables KML overlay on map, UserMap must have a value below when "true"
 UserMapShow = true;            //true to show KML
 // KML to show, for example your rangeview.kml: 
-UserMap     = "https://github.com/tedsluis/dump1090/raw/master/exampledata/radar.kml";  // your KML URL (publicly available domain)
+//
+// Google Maps JS API caches KML files for quite a long time, 
+// so if you generate your rangeview.kml often - you have to cheat :)
+// To make Google Maps think that the KML file is new, we have to serve 
+// the file via PHP script that will add the date to the filename. 
+//
+// rangeview_cheater.php script is in this Git
+UserMap     = "https://cma.pl/rangeview_cheater.php?"+(new Date()).getTime();  // your KML URL (MUST BE publicly available domain as Google will access this file)
 
 // User heatmap (csv File)
 // Enables Heatmap on map

public_html/rangeview_cheater.php

@@ -0,0 +1,5 @@
+?php
+header('Content-type: text/plain');
+header('Content-Disposition: attachment; filename="rangeview.kml"');
+readfile('radar.kml'); // Real Rangeview Generated KML FILE
+?>