Timezones in <+-nn> format are not handled

[Joshua Westerheide]

Hi Andi,

I've reported the exact same issue a few weeks ago. The maintainers are 
already working on it and a patch has been posted to the mailing list. A 
few changes have been requested and it still needs testing.

I'll attach the patch and previous discussion.


Greetings
jdoubleu

On 3/15/2022 3:23 PM, Andreas Merkle wrote:
> Posix timezone strings are in the format ABRVnn[ABRV[nn]][,...], e.g. 
> GMT0BST,... is London TZ descriptor with two abbreviations GMT and BST.
> ABRV means abbreviation. Such abbreviations are not defined for every 
> timezone around the world.
> According to https://data.iana.org/time-zones/theory.html if there is no 
> common English abbreviations, use offsets like -05 and +0530 that are 
> generated by zic's %z notation.
> These numeric offsets are enclosed between <...>. For example, 
> abbreviation for Sao Paulo TZ is <-03>3 (instead of e.g. valid SAOPAUL03).
> 
> A pull request for the newlib-xtensa version by earlephilhower fixes 
> this: https://github.com/earlephilhower/newlib-xtensa/pull/14
> I would like to provide the corresponding patch here if its ok?
> 
> Andi
> 
-------------- next part --------------
An embedded message was scrubbed...
From: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Subject: [PATCH 2/2] newlib/libc/time/tzset_r.c(_tzset_unlocked_r): POSIX angle bracket <> support
Date: Fri, 25 Feb 2022 09:39:59 -0700
Size: 8312
URL: <https://sourceware.org/pipermail/newlib/attachments/20220315/c9c330e0/attachment-0003.eml>
-------------- next part --------------
An embedded message was scrubbed...
From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
Subject: Re: Support non-POSIX TZ strings
Date: Mon, 14 Feb 2022 10:10:23 -0700
Size: 8634
URL: <https://sourceware.org/pipermail/newlib/attachments/20220315/c9c330e0/attachment-0004.eml>
-------------- next part --------------
An embedded message was scrubbed...
From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
Subject: Re: Support non-POSIX TZ strings
Date: Tue, 15 Feb 2022 15:02:40 -0700
Size: 6742
URL: <https://sourceware.org/pipermail/newlib/attachments/20220315/c9c330e0/attachment-0005.eml>