My fault. I somehow misunderstood the lines in the release note.
> JTDX 2.2.158 builds made with modified Hamlib, based on Hamlib commit https://github.com/Hamlib/Hamlib/commit/954d70c143a9a0293371d8def3a7300ce3ca68c4 as of December 30th, 2021

Found the true location of their fork of hamlib (https://github.com/jtdx-project/jtdxhamlib). Will update the patch when I managed to pack it.

On Sun, Feb 6, 2022, at 08:56, Maxime Devos wrote:
> Sheng Yang schreef op zo 06-02-2022 om 08:14 [-0600]:
> > +             (url "https://github.com/Hamlib/Hamlib.git")
> 
> That looks like a location of upstream to me, not the fork.
> 
> Greetings,
> Maxime.
> 
> 
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