error[E0458]: unknown link kind `wonderful_unicorn`, expected one of: static, dylib, framework, raw-dylib --> $DIR/E0458.rs:1:15 | LL | #[link(kind = "wonderful_unicorn")] extern "C" {} | ^^^^^^^^^^^^^^^^^^^ unknown link kind error[E0459]: `#[link]` attribute requires a `name = "string"` argument --> $DIR/E0458.rs:1:1 | LL | #[link(kind = "wonderful_unicorn")] extern "C" {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `name` argument error: aborting due to 2 previous errors Some errors have detailed explanations: E0458, E0459. For more information about an error, try `rustc --explain E0458`.