Using qjson in qtcreator and building with target remote compiler

I have built QJson using QTcreator.

I now have 3 distinct directories: one for the desktop target, another one for the Qt simulator and a 3rd one for the remote compiler.
The First and the second directories contain a lib subdir.
The third directory contains only a .sis file (I renamed it qjson.sis)

I want to use the qjson library in a project with target remote compiler but I don't manage to link it correctly ...
I suppose I should use the qjson.sis file ... but how ?

Thanks for your help ...
Bruno