[tz] version information in tz binary file?
Arthur David Olson
arthurdavidolson at gmail.com
Mon Sep 9 10:47:42 UTC 2013
We started out life with 16 "reserved" bytes in binary files; one of those
was appropriated for the compiler version number so we're now at...
Adding something such as "2013e" wouldn't exhaust the reserved bytes; it
would complicate regression testing (though not unduly).
On Mon, Sep 9, 2013 at 2:21 AM, Paul Eggert <eggert at cs.ucla.edu> wrote:
> One other thing. It's been privately suggested to me,
> more than once, that a tz binary file should have
> a version number in it, identifying which version of
> the tz data it came from. Presumably this could be
> a new option to 'zic', used by Makefile, e.g.,
> zic -V "$(VERSION)" ...
> would copy the value of VERSION into the zic output file.
> Do you think this is a good idea? If so, where would
> be a good place to put the version information -- a
> new "version=2013e" line after the POSIX TZ string?
> If we are bumping from version '2' to 'version '3'
> anyway, now may be a good time to add this, if it's
> a good idea to add it that is.
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