| Some linking kinds are target-specific and not supported on all platforms. |
| |
| Linking with `kind=framework` is only supported when targeting macOS, |
| as frameworks are specific to that operating system. |
| |
| Similarly, `kind=raw-dylib` is only supported when targeting Windows-like |
| platforms. |
| |
| Erroneous code example: |
| |
| ```ignore (should-compile_fail-but-cannot-doctest-conditionally-without-macos) |
| #[link(name = "FooCoreServices", kind = "framework")] extern "C" {} |
| // OS used to compile is Linux for example |
| ``` |
| |
| To solve this error you can use conditional compilation: |
| |
| ``` |
| #[cfg_attr(target="macos", link(name = "FooCoreServices", kind = "framework"))] |
| extern "C" {} |
| ``` |
| |
| Learn more in the [Conditional Compilation][conditional-compilation] section |
| of the Reference. |
| |
| [conditional-compilation]: https://doc.rust-lang.org/reference/attributes.html#conditional-compilation |
