Is it really looking for SSL 1.0.0?
Yes, I'm afraid it is.
The dev team tells me it's quite likely a depency from libcurl, which is statically linked into the library.
The library has been tested and verified on Ubuntu LTS 16.04 and 18.04 - this is what we pt officially support.
Again, can you share more details about what you are building and what for, we may get more leverage with product management in prioritising development effort.
(If you are concerned about confidentiality, feel free to register and create a support ticket - this can only be seen by you and us.)