Merge remote-tracking branch 'upstream/master' into ipv6

Makefile

@@ -1,6 +1,6 @@
-CFLAGS=-O2 -g -Wall -W `pkg-config --cflags librtlsdr`
-LIBS=`pkg-config --libs librtlsdr` -lpthread -lm
-CC=gcc
+CFLAGS?=-O2 -g -Wall -W $(shell pkg-config --cflags librtlsdr)
+LDLIBS+=$(shell pkg-config --libs librtlsdr) -lpthread -lm
+CC?=gcc
 PROGNAME=dump1090
 
 all: dump1090
@@ -9,7 +9,7 @@ all: dump1090
 	$(CC) $(CFLAGS) -c $<
 
 dump1090: dump1090.o anet.o
-	$(CC) -g -o dump1090 dump1090.o anet.o $(LIBS)
+	$(CC) -g -o dump1090 dump1090.o anet.o $(LDFLAGS) $(LDLIBS)
 
 clean:
 	rm -f *.o dump1090

README.md

@@ -19,7 +19,7 @@ The main features are:
 * Interactive command-line-interfae mode where aircrafts currently detected
   are shown as a list refreshing as more data arrives.
 * CPR coordinates decoding and track calculation from velocity.
-* TCP server streaming and recceiving raw data to/from connected clients
+* TCP server streaming and receiving raw data to/from connected clients
   (using --net).
 
 While from time to time I still add / fix stuff in my fork, I target

dump1090.c

@@ -2260,6 +2260,7 @@ int handleHTTPRequest(struct client *c) {
         "Content-Type: %s\r\n"
         "Connection: %s\r\n"
         "Content-Length: %d\r\n"
+        "Access-Control-Allow-Origin: *\r\n"
         "\r\n",
         ctype,
         keepalive ? "keep-alive" : "close",