Hello Daniel, or anyone else affected, Accepted tzdata into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/tzdata/2024b-0ubuntu0.20.04.1 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: tzdata (Ubuntu Focal) Status: New => Fix Committed ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to tzdata in Ubuntu. https://bugs.launchpad.net/bugs/2096974 Title: tzdata-2024b-0ubuntu0.24.04 makes std::chrono unusable Status in gcc-14 package in Ubuntu: Confirmed Status in tzdata package in Ubuntu: Triaged Status in waybar package in Ubuntu: New Status in gcc-14 source package in Focal: New Status in tzdata source package in Focal: Fix Committed Status in waybar source package in Focal: New Status in gcc-14 source package in Jammy: New Status in tzdata source package in Jammy: Fix Committed Status in waybar source package in Jammy: New Status in gcc-14 source package in Noble: New Status in tzdata source package in Noble: Fix Released Status in waybar source package in Noble: New Status in gcc-14 source package in Oracular: New Status in tzdata source package in Oracular: Fix Released Status in waybar source package in Oracular: New Bug description: [ Impact ] The latest tzdata SRU[1] included a change[2] in the main data form: The main source files' time zone abbreviations now use %z, supported by zic since release 2015f and used in vanguard form since release 2022b. For example, America/Sao_Paulo now contains the zone continuation line "-3:00 Brazil %z", which is less error prone than the old "-3:00 Brazil -03/-02". This does not change the represented data: the generated TZif files are unchanged. Rearguard form still avoids %z, to support obsolescent parsers. Turns out the standard c++ library in at least oracular and noble fail to parse that, resulting in a much small list of available timezones, or even crashes[3]. The c++ fix for that is in [4]. That might be eventually SRUed, but at the moment it's quicker to adjust tzdata than the c++ library. Also, there might be other parsers in the supported Ubuntu releases that are also affected, and just haven't been noticed yet. 1. https://launchpad.net/bugs/2070285 2. https://github.com/eggert/tz/commit/94e6b3b0eb773e66a9ac49b905c69c0fa6a31dc3 3. https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/2096974/comments/10 4. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116657 [ Test Plan ] This update includes a new DEP8 test that checks specifically for this bug. Therefore, the test plan is to observe that the full suite of autopkgtests is run and that it passed. For jammy and focal, which do not contain the c++ library function that is failing, build this small C++ app in *NOBLE*: #include <chrono> #include <iostream> int main() { for (const auto & time_zone : std::chrono::get_tzdb().zones) { std::cout << time_zone.name() << std::endl; } } Build and link statically, like so (assuming the file is called test.cpp): g++ -std=c++20 -o test test.cpp -static Then copy the resulting binary ("test") to the jammy and focal systems under test. An affected system will show just two timezones: $ ~/test Etc/GMT Etc/UTC Whereas a fixed system will show hundreds. [ Where problems could occur ] All software that use tzdata could be affected by this update. There is probably at least one implementation in each programming language for reading the timezone data. The update could trigger parser bugs. The autopkgtest will cover Python's zoneinfo and now C++ std::chrono. [ Original Description ] inalling tzdata in version 2024b-0ubuntu0.24.04 causes std::chrono to deliver only 2 timezones: code: for (const auto & time_zone : std::chrono::get_tzdb().zones) { std::cout << time_zone.name() << std::endl; } output: Etc/GMT Etc/UTC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-14/+bug/2096974/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
