[LinuxPPS] cross posting [time-nuts] NTP API on Linux 2.6.26

[Udo van den Heuvel]

Udo van den Heuvel wrote:
> Hal V. Engel wrote:
>> I was using ntp-4.2.5p135 when I was having this problem.  I moved back to 
>> 4.2.4p6 (latest stable version) and tested again.  This appears to be working 
>> OK with LIBS="-lrt".  So it appears that there were issues with the version of 
>> ntp I was using.
> 
> So I just patch the Makefile?
> Or is there a ./configure trick to use librt?

In the redhat rpm for ntp I find:

# clock_gettime needs -lrt
sed -i.gettime 's|^LIBS = @LIBS@|& -lrt|' ntp{d,q,dc,date}/Makefile.in

But my precision looks like:

Dec 26 11:02:31 epia ntpd[13820]: precision = 1.000 usec
Dec 26 11:29:41 epia ntpd[13969]: precision = 1.541 usec

So?