foo.rs

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![crate_type = "staticlib"]

struct Destroy;
impl Drop for Destroy {
    fn drop(&mut self) { println!("drop"); }
}

thread_local! {
    static X: Destroy = Destroy
}

#[no_mangle]
pub extern "C" fn foo() {
    X.with(|_| ());
}