mio_httpc 0.3.7

mio_httpc is a fully async and sync http client running on top of mio only. 
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use std::env;

fn main() {
    // HAS
    match env::var("DEP_OPENSSL_VERSION") {
        Ok(ref v) if v == "101" => {
        }
        Ok(ref v) if v == "102" => {
            println!("cargo:rustc-cfg=has_alpn");
        }
        Ok(ref v) if v == "110" => {
            println!("cargo:rustc-cfg=has_alpn");
        }
        _ => {}
    }
}