>>> +               (zero? (system* "ln" "-s"
>>> +                               (string-append out "/lib/libargon2.so")
>>> +                               (string-append out "/lib/libargon2.so.0")))
>>
>> The result of this will be ignored. Did you mean "(and ...)"?
>
> Oops! Yes, I will send an updated patch later today.
>

A patch fixing this is attached.

Thank you!

Best,
Lukas