In fact it was really just an issue with finding the correct libraries. I have no intimate knowledge of Linux and thus messed up on my developer machine, but got it now.
I do however wonder, if I will be able to publish that setup to web. I’m not concerned with platform issues, because this is written on another page, it’s just the question whether including libs from the virtual file system will work at all.
(I’m thinking of the somewhat related thread here:
[Two problems with P3D files))