There is an updated pull request by classabbyamp against master on the void-packages repository

https://github.com/classabbyamp/void-packages glibc-partial
https://github.com/void-linux/void-packages/pull/47931

glibc: depend on libxcrypt to ensure partial upgrades work
if a partial upgrade occurs that includes glibc but not libxcrypt, libcrypt.so.1 will disappear and things like PAM will fail to work. This is only solvable by chrooting in and downgrading glibc or installing libxcrypt.

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#### Testing the changes
- I tested the changes in this PR: **NO** (currently away from other systems I can test on)


A patch file from https://github.com/void-linux/void-packages/pull/47931.patch is attached