static_vcruntime 1.4.1

Statically link the VCRuntime when using the MSVC toolchain.
Documentation 
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fn main ()
{
    println!("cargo:rerun-if-env-changed=PROFILE");
    if ::std::env::var("PROFILE").map_or(false, |s| s == "release") {
        println!("cargo:rustc-cfg=release");
    }
}