extern crate bindgen;

use std::env;
use std::path::PathBuf;
use bindgen::Bindings;

fn main() {
    // Tell cargo to tell rustc to link the system bzip2
    // shared library.
    println!("cargo:rustc-link-lib=glfw");

    let bindings = bindgen::Builder::default();

    let finalb:Bindings;
    // Tell cargo to invalidate the built crate whenever the wrapper changes
    #[cfg(feature = "wayland")] {
        println!("cargo:rerun-if-changed=wayland.h");
        finalb=bindings.header("wayland.h").generate().expect("failed to generate wayland bindings");
    }

    #[cfg(feature = "x11")] {
        println!("cargo:rerun-if-changed=x11.h");
        finalb=bindings.header("x11.h").generate().expect("failed to generate x11 bindings");
    }

    // Write the bindings to the $OUT_DIR/bindings.rs file.
    let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
    finalb
        .write_to_file(out_path.join("bindings.rs"))
        .expect("Couldn't write bindings!");
}