How to correctly integrate D library to Swift/Obj-C mobile project?

[Anton via Digitalmars-d-learn]

I have a static library (.a) compiled with LDC for iOS platform. 
But I can't figure out how to correctly connect it to the project 
and call its functions. I've already linked binary with library 
to the project but IDE still doesn't see its classes and methods. 
Do I need to do some additional configurations?