PSA: `rust-onig` latest official release is from 2022 and is not compatible with gcc15 that is the default in #Fedora42; the main branch works but dependencies refer to the 6.4 release and don't. The quickest workaround is
```
sudo dnf install gcc14
export CC=gcc-14
```
and then cargo build whatever you want to cargo build (or cargo install), but it's not ideal. Hopefully they'll get a release out soon.
Fixes #synect, #zola and #bat builds (and many other crates), tough.