-// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution.
-//
-// 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.
-
+// aux-build:implicit_hasher_macros.rs
#![allow(unused)]
+#[macro_use]
+extern crate implicit_hasher_macros;
+
use std::cmp::Eq;
use std::collections::{HashMap, HashSet};
use std::hash::{BuildHasher, Hash};
pub mod test_macro;
__implicit_hasher_test_macro!(impl<K, V> for HashMap<K, V> where V: test_macro::A);
+// #4260
+implicit_hasher_fn!();
+
fn main() {}