How can I use a matlab function like radon(),radonc() other filter in matlab coder to generate c static library?

Hi, I am using a Matlab coder to translate matlab code to c Language. But it geves me error .

***********"??? The function 'radon' is not supported for standalone code generation. See the documentation for coder.extrinsic to learn how you can use this function in simulation. "************* Can any one please tell me how can i use matlab function in to pure c code.

Thank you