Calling Fortran code in Simulink

I have an existing Fortran code which I want to call from Simulink.For starters, I am trying to implement

the sfcndemo_atmos - Simulink built in example.

However, I don't know how to compile and link the mex and source file and integerate them into

S function block in the simulink.

I am using Matlab 2018a with following compilers:

'Microsoft Visual C++ 2017 (C)

Intel Parallel Studio XE 2015 for Fortran with Microsoft Visual Studio 2015.

Thanks.