Using Armadillo with MKL - Beginner

Hi all.

I had a few questions regarding the usage of the Armadillo library with MKL. Apologies in advance if this is not the right place for them. I'm currently on Ubuntu 16.04, using gcc 5.4.0. 

1. When there are other installations of BLAS/OpenBLAS and Lapack, how does one direct Armadillo to use MKL?
2. In the ${MKLROOT}/mkl/lib/intel64_lin folder, there are plenty of different libraries (static and dynamic). Since I am only using the functions that Armadillo provides and not building any of my own (at least not any that use MKL), which libraries am I supposed to link gcc with when compiling? 

Thank you so much!