[Buildroot] [PATCH 2/2] package/tzdata: bump version to 2020f

[Peter Korsgaard <peter@korsgaard.com>]

>>>>> "Yann" == Yann E MORIN <yann.morin.1998@free.fr> writes:

Hi,

 > So it looks like the duplicated header is causing issues everywhere...

 >> I added back the previous default zic format "fat" instead of "slim" [1] to pass
 >> the test. The default format has been changed in 2020b release.
 >> I'm not sure if we should keep the "fat" format...
 >> [1] https://github.com/eggert/tz/commit/6ba6f2117b95eab345a7ed9159cef939e30c4cd3

https://github.com/eggert/tz/commit/7879a3fba1310da0ccc1c336515b5b4a409c3ccb
(the commit adding the slim variant) gives more info.

 > To be noted: the glibc version used in thoses tests is 2.18, released in
 > August 2013...

 > It seems the support for the slim format was only introduced with glibc
 > 2.32. 2.31 has no mention of either slim or fat, while 2.32 mention
 > both, as it synced with upstream tz 2020a; the previous sync was with
 > 2018i...

It is also not clear to me exactly when the slim format support was
added to glibc, but as additional datapoints, I have it working with a
2.30 based toolchain built by 2020.02.x and a 2.31 based one built by
2020.11.x.


 > So, what I suggest we do:

 >   - for master (and next): revert to fat for external glibc, use slim
 >     for internal glibc (check for c-sky)

 >   - for maintenance branches: unconditionally revert to fat.

Sounds sensible. Please do it in 2 patches, E.G. first use fat
everywhere, and then as a followup patch change to slim for internal
glibc.

-- 
Bye, Peter Korsgaard