Re: strftime(3) oddities with %s, %z

[Mouse]

>> I don't think that's needed for what uwe@ and dholland@ were looking
>> for, which -- if I understand correctly -- is that:

>|      gmtime_r(&t, &gtm);
>|      localtime_r(&t, &ltm);
>|      strftime_XXX(gbuf, sizeof(gbuf), "... %s ...", &gtm);
>|      strftime_XXX(lbuf, sizeof(lbuf), "... %s ...", &ltm);

>| should format the same number at %s in the output

> That simply isn't possible, or not and retain [compatibility with
> existing and apparently-soon-to-be-codified practice].

Which is why I, and I think at least one or two of the others (though
in very different words), have been calling the existing API broken: it
cannot do the naïvely-obvious thing, a perfectly reasonable thing from
a conceptual point of view, a thing which I suspect is what would be
expected by someone who deosn't understand enough details to know just
how Byzantinely broken this is.  Before reading this thread, I would
have expected something like the above to work.  (Probably because I
haven't tried to use struct tm for timezone-aware code and thus haven't
run into this trainwreck before.)

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