extern crate bindgen; use std::env; use std::path::PathBuf; fn main() { // Tell cargo to invalidate the built crate whenever the wrapper changes println!("cargo:rerun-if-changed=includes/c_worker.h"); let bindings = bindgen::Builder::default() .header("includes/c_worker.h") .parse_callbacks(Box::new(bindgen::CargoCallbacks)) .generate() .expect("Unable to generate bindings"); let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()); bindings .write_to_file(out_path.join("ray_rs_sys_bindgen.rs")) .expect("Couldn't write bindings!"); }