| // SPDX-License-Identifier: Apache-2.0 OR BSD-3-Clause |
| // SPDX-FileCopyrightText: 2022 Linaro Ltd. |
| // SPDX-FileCopyrightText: 2022 Viresh Kumar <viresh.kumar@linaro.org> |
| |
| extern crate bindgen; |
| |
| use std::env; |
| use std::path::PathBuf; |
| |
| fn generate_bindings() { |
| // Tell cargo to invalidate the built crate whenever following files change |
| println!("cargo:rerun-if-changed=../../../include/gpiod.h"); |
| |
| // The bindgen::Builder is the main entry point |
| // to bindgen, and lets you build up options for |
| // the resulting bindings. |
| let bindings = bindgen::Builder::default() |
| // The input header we would like to generate |
| // bindings for. |
| .header("../../../include/gpiod.h") |
| // Tell cargo to invalidate the built crate whenever any of the |
| // included header files changed. |
| .parse_callbacks(Box::new(bindgen::CargoCallbacks)) |
| // Finish the builder and generate the bindings. |
| .generate() |
| // Unwrap the Result and panic on failure. |
| .expect("Unable to generate bindings"); |
| |
| // Write the bindings to the $OUT_DIR/bindings.rs file. |
| let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()); |
| bindings |
| .write_to_file(out_path.join("bindings.rs")) |
| .expect("Couldn't write bindings!"); |
| } |
| |
| fn main() { |
| generate_bindings(); |
| |
| println!("cargo:rustc-link-search=./../../lib/.libs/"); |
| println!("cargo:rustc-link-lib=gpiod"); |
| } |