extern crate rustc_version;

use rustc_version::{version_meta, Channel};

fn main() {
    let using_nightly = version_meta().unwrap().channel == Channel::Nightly;
    let asm_capable_target =
        cfg!(not(any(all(target_os = "nacl", target_arch = "le32"),
                     target_arch = "asmjs",
                     target_arch = "wasm32")));
    if using_nightly && asm_capable_target {
        println!("cargo:rustc-cfg=asm");
    }
}