oceanic/h2o/libs/syscall/build.rs

use std::error::Error;

fn main() -> Result<(), Box<dyn Error>> {
    #[cfg(all(feature = "call", not(feature = "vdso")))]
    {
        let config = cbindgen::Config::from_file("cbindgen.toml")?;
        println!("cargo:rerun-if-changed=cbindgen.toml");

        let src_dir = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
        let bindings = cbindgen::Builder::new()
            .with_config(config)
            .with_crate(".")
            .generate()?;

        let c_target_path = src_dir.join("../../../target/sysroot/usr/include/h2o.h");
        bindings.write_to_file(c_target_path);
    }

    Ok(())
}