raw_dylib

The tracking issue for this feature is: #58713

The raw_dylib feature allows you to link against the implementations of functions in an extern block without, on Windows, linking against an import library.

#![feature(raw_dylib)]

#[link(name="library", kind="raw-dylib")]
extern {
    fn extern_function(x: i32);
}

fn main() {
    unsafe {
        extern_function(14);
    }
}

Limitations

Currently, this feature is only supported on -windows-msvc targets. Non-Windows platforms don't have import libraries, and an incompatibility between LLVM and the BFD linker means that it is not currently supported on -windows-gnu targets.

On the i686-pc-windows-msvc target, this feature supports only the cdecl, stdcall, system, and fastcall calling conventions.