Run Simile model as part of c++ project

I just created a simple model and exported it to c++ code. I want to run the c++ code as part of qt creator c++ project. I want the output of the model to be written to a file. So, I created new c++ project and I added the model file(in which I exported), support1.cpp, support2.cpp, process.cpp, and shank.cpp files. But I get an error message that says 6d.h is not found, in which i couldn't locate in Simile folder. Has anyone tried to run the exported c++ file as part of c++ project? Please share your experience.