[gpsd-dev] new 'timeservice' build option

[Eric S. Raymond]

New section in the GPSD Time Service HOWTO:

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=== Building gpsd ==

A normal gpsd build includes support for interpreting 1PPS pulses that is mostly
autoconfiguring and requires no special setup.

You can build a version stripped to the mimimum configuration required
for time service.  This reduces the size of the binary and may

like this:

-----------------------------------------------------------------------------
scons timeservice=yes nmea0183=yes fixed_port_speed=9600 fixed_stop_bits=1
-----------------------------------------------------------------------------

You may substitute a different GPS (e.g. "ublox" or "sirf"), You can
also fix the serial parameters to avoid autobauding lag; the code
assumes 8 bit bytes, so the above locks the daeon to 9600 8N1. Besides
the daemon, this also builds gpsmon and ntpshmmon.

When gpsd is built in this way, the -n (nowait) option is forced;
gpsd opens its command-line devices immediately on startup.

Otherwise, make sure the build is with pps=yes and ntpshm=yes (the
default).  The command "gpsd -L" should indicate that time-service
features and PPS are enabled.
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-- 
                <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>

To stay young requires the unceasing cultivation of the ability to
unlearn old falsehoods.
        -- Lazarus Long