ntpsec versions

[Hal Murray]

verm at darkbeer.org said:
> Can you elaborate on this please?  Are you talking about rebuilding each
> version.c for the respective tool it is meant for if a file for that tool
> changes?

Yes,  If you are relinking ntpd, waf should recompile ntpd/version.c as part 
of this batch.  It doesn't need to rebuild version.c unless git HEAD has 
changed.  (The git hash is in version.c)

The problem is that version.c is using __DATE__ and __TIME__ which are the 
compile times and we want the link times.

Plan B would be to get the build/link time at runtime somehow.  I think we 
discussed it but didn't come up with a way to do it.  (That was a long time 
ago.)

> If so this can be done. 

That would be great, but far from high priority in my opinion.

It might be a good example for how to do things with waf.



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