time zone isn't set

[Hannu Nyman]

e9hack kirjoitti 19.10.2020 klo 18.28:
> after commit 1f5f599d0ea434820e06fd540ecbc9c7f15399b4 (zoneinfo: Updated to the latest release) time zone isn't set.
> Before this commit:
> root at openwrt:~# date +"%Z %z"
> CEST +0200
>
> After this commit:
> root at openwrt:~# date +"%Z %z"
>   +0000
>
> The localtime link is set properly:
> root at openwrt:~# ls -l /tmp/localtime
> lrwxrwxrwx    1 root     root            33 Oct 19 06:37 /tmp/localtime -> /usr/share/zoneinfo/Europe/Berlin


Could it be that the zoneinfo format has changed so that musl is not 
compatible any more?

I suspect this:

http://mm.icann.org/pipermail/tz-announce/2020-October/000059.html

    Changes to build procedure

      The Makefile now defaults POSIXRULES to '-', so the posixrules
      feature (obsolete as of 2019b) is no longer installed by default.


The last zoneinfo version bump was really simple (like always), but possibly 
the internal format has changed so that musl libc isn't able to read it any more.

Possibly musl uses that posixrules item to read zoneinfo?


Reference also to discussions at

https://forum.openwrt.org/t/timezone-etc-tz-not-updated-correctly/77002

and

https://github.com/openwrt/packages/pull/13644