Re: [tz] (topic drift) leap second theory

Howard Hinnant wrote:

I am working with them in the hopes of getting them to publis the IANA leapseconds information in_some_ form (the “right” subtree being one of those possible forms, the leapseconds source file being another).

I suggest the latter, as it's a lot smaller and less likely to go wrong. Red Hat distributes /usr/share/zoneinfo/leapseconds, whereas Ubuntu distributes /usr/share/zoneinfo/leap-seconds.list. These have the same leap-second info but use different formats; leapseconds is input suitable for zic, whereas leap-seconds.list is the format that the NIST uses. I don't know why GNU/Linux distributions differ in this area. I hope Apple chooses one format or the other rather than going their own way.