There's nothing wrong with pulling in the `libc` dependency. It literally means adding two lines of code and then `cargo` manages everything for you. It isn't really third-party; the owner is "rust-lang:libs".

I understand that people are conditioned to think APIs are easier to consume when they're in the standard library, because that's true in many languages, especially those that lack a modern package management system (e.g. Ada). But it's not true in Rust and there are advantages to having libraries like `libc` outside the standard library. For example `libc` is updated more frequently than the Rust standard library (multiple times per month vs every six weeks).