[tz] Undoing the effect of the new alike-since-1970 patch
tgl at sss.pgh.pa.us
Sat Jun 5 19:15:32 UTC 2021
Paul Eggert via tz <tz at iana.org> writes:
> So I propose we add a Makefile or similar build-time option to let tzdb
> users have it either way. Set the flag one way, and it will be as if the
> recently-proposed changes did not occur. Set it the other way, and
> you'll get the changes.
Works for me, as long as it's possible to get the formerly-default
zone data (that is, without the old backzone additions).
> This will be similar to our vanguard/rearguard support, which helped
> address a similar disagreement back in 2018. We could even control
> things via the existing vanguard/rearguard build-time option; that might
> be simpler. If you have ideas about what the the option's specific
> effects should be, please let me know.
Please *do not* tie this to vanguard/rearguard. The fact that tzdb
consumers might disagree with your revisions to the data classification
doesn't mean that they want to get locked into obsolete file formats.
regards, tom lane
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