/* Copyright ⓒ 2016 Daniel Keep. Licensed under the MIT license (see LICENSE or ) or the Apache License, Version 2.0 (see LICENSE of ), at your option. All files in the project carrying such notice may not be copied, modified, or distributed except according to those terms. */ extern crate rustc_version; use rustc_version::{version_matches}; fn main() { println!("cargo:rerun-if-changed=build.rs"); if version_matches("1.8.0") { println!("cargo:rustc-cfg=op_assign"); } }