THIS SOFTWARE CONTAINS A LOT OF UNLICENSED CODE FROM WCH.
These code can be downloaded from www.wch.cn, without *ANY* licenses provided,
assuming they can be reproduced and re distributed.

So, USE THEM AT YOUR OWN RISKS, modifications are made, see commit log or diff them manually.
Anything comes without a SPDX-License-Identifier header are subject to this LICENSE.

Fly safe and godspeed.