On 2026-03-08 09:45, Guy Harris via tz wrote:
Looking at the current tip-of-main-branch code from GNU libc (which is what I think many Linux distributions use), it looks different - and not just in coding style - from the current tzcode version. I don't know who's responsible for those changes.
Partly I am. For example, I rewrote GNU mktime in 1995. Given all the other rewriting, at this point it'd be a stretch to say there's much in common between tzcode and glibc-like libraries. That's not the case for FreeBSD and NetBSD - their libraries could sync with tzcode with just a little bit of engineering.
tzcode zic and zdump are a different matter: as far as I know they're used pretty much unchanged among all systems that use C code to generate and dump TZif files.
tzcode 'date' is in yet another category: it was derived from old BSD date and as far as I know nobody uses it downstream.
