This bug report is misleading, because Asia/Chungking is not a symlink to another symlink:
``` $ ls -l /usr/share/zoneinfo/Asia/Chungking /usr/share/zoneinfo/Asia/Shanghai lrwxrwxrwx 1 root root 8 Apr 5 20:24 /usr/share/zoneinfo/Asia/Chungking -> Shanghai -rw-r--r-- 1 root root 561 Apr 5 20:24 /usr/share/zoneinfo/Asia/Shanghai ``` Asia/Chungking is part of tzdata-legacy and this package is probably not installed. Anyways, I'll replace the symlinks that point to symlinks. ** Description changed: forwarded from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114770 + + ``` + #include <chrono> + int main() + { + (void) std::chrono::locate_zone("Asia/Chungking"); + } + ``` + + With the latest tzdata (version 2024a-2) on Debian Sid this fails: + + terminate called after throwing an instance of 'std::runtime_error' + what(): tzdb: cannot locate zone: Asia/Chungking + Aborted (core dumped) + + The problem is a Debian patch that enables link chaining, so that one link can have another link as its target: + https://sources.debian.org/patches/tzdata/2024a-2/ziguard.awk-Move-link-to-link-feature-from-vanguard-to-ma.patch/ + + This feature was added to tzdata in 2022, but isn't compatible with the + expectations of the C++20 standard. When chrono::locate_zone finds a + link, it expects its target to be a zone, not another link. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2062522 Title: std::chrono::locate_zone("Asia/Chungking") fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/2062522/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
