There's a closed pull request on the void-packages repository

cups: add support for gnutls to enable https
https://github.com/void-linux/void-packages/pull/40467

Description:
Without gnutls CUPS defaults to the MacOS path for certificates. https://github.com/OpenPrinting/cups/blob/19047059/scheduler/conf.c#L607-L612

When administering printers in CUPS UI (localhost:631) I noticed that the connection could not upgrade to HTTPS.  Upon investigation with `strace` I saw that CUPS was trying to load certificates from `/Library/Keychains/System.keychain`.
```
openat(AT_FDCWD, "/Library/Keychains/System.keychain/void.key", O_WRONLY|O_CREAT|O_TRUNC, 0666) = -1 ENOENT (No such file or directory)
```
Enabling GNUTLS causes CUPS to look in the correct location for certificates.

#### Testing the changes
- I tested the changes in this PR: **YES**

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-GLIBC)