[ntp:questions] NTP & PPS, part 2 ;)

Rob nomail at example.com
Sat Dec 13 10:01:34 UTC 2014


Harlan Stenn <stenn at ntp.org> wrote:
> Rob writes:
>> Harlan Stenn <stenn at ntp.org> wrote:
>> > Martin Burnicki writes:
>> >> IMO the best approach would be to detect this at runtime.
>> >
>> > That means we'd need a header file...
>> >
>> > If I'm not mistaken (and it's getting late for me), if the header file
>> > is missing we don't expect the API.  If the header file is present we
>> > expect it to "do the right thing" and even then we check error returns
>> > from the API.
>> 
>> But the problem is the file is normally not there, even when the API is.
>
> No, the problem is that it's not normally there on *linux* boxes where
> the file is maintained in a separate package.
>
> It *is* provided by the other OSes that implement this API.

Thos OSes probably have no package management and/or always install
everything even when the user has not asked for it.

Again, the solution is simple: building a correct ntpd depends on
the availability of the pps-tools package on the build system.
It should be added to the build dependencies to solve the problem.

Current build dependencies on Debian are:

debhelper (>= 4.2.12), libreadline-dev, lynx, libcap-dev, libedit-dev,
libperl-dev, libssl-dev (>= 0.9), libsnmp-dev, quilt (>= 0.40),
libevent-dev

Add pps-tools to that list and the problem is over, finito.
The only problem we face is that people don't want to type 'A, pps-toolsESCZZ'
and finish a long-running discussion.



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