[Panino]

> If you have a security feature for example, which uses the pledge() syscall on OpenBSD, but you can only use that feature on OpenBSD systems, you have two choices:

Just in case, I want to note that pledge(2) and unveil(2) are also supported by SerenityOS, so checking only for an OpenBSD target is insufficent.

https://awesomekling.github.io/pledge-and-unveil-in-Serenity...

Pledge and unveil in SerenityOS, combined with the planned move to memory safety, will be a powerful combination.