Prepare paths for distlib.wheel.Wheel to install into.

def _build_paths():
    """Prepare paths for distlib.wheel.Wheel to install into.
    """
    paths = sysconfig.get_paths()
    return {
        "prefix": sys.prefix,
        "data": paths["data"],
        "scripts": paths["scripts"],
        "headers": paths["include"],
        "purelib": paths["purelib"],
        "platlib": paths["platlib"],
    }