MATLAB: Exclusion of blocks that interact with the MATLAB engine during code generation

code generationcoder.extrinsicextrinsicinterpreted matlabMATLABmatlab codersimulinksimulink coder

I am trying to develop Simulink blocks that interact with the MATLAB engine during simulation, but are automatically excluded from the build process during code generation. A good example of such a block would be the Simulink built-in Display block (Simulink/Sinks/Display). Is there a recommended way to achieve this result? I have tried using the MATLAB Function (formerly the Embedded MATLAB) block with the functions to be excluded declared using coder.extrinsic, as well as the Interpreted MATLAB Function block, but have been unsuccessful so far. I always get an error message during the build process.
I am using MATLAB R2013a x64.