// Copyright 2015-2017 Parity Technologies // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. extern crate rustc_version; use rustc_version::{version_meta, Channel}; fn main() { if let Channel::Nightly = version_meta().unwrap().channel { println!("cargo:rustc-cfg=asm_available"); } }