rtmidi 0.1.0

Safe wrapper for RtMidi, realtime MIDI input/output
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use std::env;
use std::path::PathBuf;

fn main() {
    println!("cargo:rustc-link-lib=rtmidi");
    println!("cargo:rerun-if-changed=wrapper.h");

    let include_args = match pkg_config::Config::new().statik(false).atleast_version("4.0.0").probe("rtmidi") {
        Err(_) => vec![],
        Ok(library) => library.include_paths.iter().map(|include_path| {
            format!("-I{}", include_path.to_str().expect("include path was not UTF-8"))
        }).collect::<Vec<_>>(),
    };

    let bindings = bindgen::Builder::default()
        .header("wrapper.h")
        .clang_args(include_args)
        .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("bindings.rs"))
        .expect("Couldn't write bindings!");
}