There is a new pull request by rationalize-zz against master on the void-packages repository

https://github.com/rationalize-zz/void-packages cpp_timezone
https://github.com/void-linux/void-packages/pull/54061

Backport tzdb vanguard format
#### Testing the changes
- I tested the changes in this PR:  briefly

#### Local build testing
- I built this PR locally for my native architecture, x86_64-glibc
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - aarch64
  - armv6l
  - x86_64-musl

Backport tzdata format fix to gcc 13.2 to allow c++ std::chrono library to handle timezones after tzdata-2025a update.


A patch file from https://github.com/void-linux/void-packages/pull/54061.patch is attached