Re: [PATCH v3 3/3] core: convert build-time USE_NSEC into runtime core.useNanosec

On Wed, Aug 19, 2026 at 09:15:44AM -0700, Junio C Hamano wrote:
> Patrick Steinhardt <[email protected]> writes:
> 
> >> diff --git a/environment.c b/environment.c
> >> index 6676e6f5ae..c7f6b801f4 100644
> >> --- a/environment.c
> >> +++ b/environment.c
> >> @@ -571,6 +571,13 @@ int git_default_core_config(const char *var, const char *value,
> >>  		return 0;
> >>  	}
> >>  
> >> +#ifndef NO_NSEC
> >> +	if (!strcmp(var, "core.usenanosec")) {
> >> +		cfg->use_nanosec = git_config_bool(var, value);
> >> +		return 0;
> >> +	}
> >> +#endif
> >
> > Do we want to omit a warning in case the config is enabled and we have
> > NO_SEC set? Or would that be too obnoxious?
> 
> Those who use a $HOME/.gitconfig shared across two machines with
> different builds would be annoyed with one of them constantly
> complaining, I am afraid.

Yeah, that's what I was hinting at with "too obnovious". So I agree,
let's not add one.

Patrick