Back port four upstream fixes for those issues:
- gpsprof could not log or dump GNSS messages; gpsprof is useful
to calbrate a GNSS receiver, especially when building a static
RTK base;
- the JSON blurb reported by gpsd was sometimes broken, causing
decoding errors in clients;
- the detection of 64-bit time on 32-bit systems was borked;
- UDP mode was borked;
The runtime test is extended to test all known transports: TCP, UDP,
and PTY.
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>