How to supress S Function generation when using coder.ceval and coder.target

Right now, I am working to use embedded coder to generate C code to execute on an embedded target using the slbuild command. The way I call custom C code from simulink is to use a MATLAB defined user function with the following statement.

if coder.target('MATLAB')
    %Do nothing
else
    %Call custom embedded C function called function_name
    coder.updateBuildInfo('addSourceFiles','functions.c');
    coder.cinclude('functions.h');
    coder.ceval('function_name');
end

This works fine for very simple C functions, but I am running into trouble with larger C functions because embedded coder is still trying to create an S Function to simulate this block and the "function_name". I think all I need to do is turn the S Function generation off... how do I do that? Is there a command line option, model configuration box, or a coder.target statement that could do this?

In previous versions of MATLAB, I've also used the following and never had this problem, but when I try that here, it is still trying to generate the S function.

if coder.target('Rtw')
    %call C function
    coder.ceval('function_name')
else
    %Do Nothing
end

Answer 1

[Daniel]

This worked for anyone else out there who has run into this problem. This prevents the attempt of simulating an S function for C code that is meant to run on an embedded target.

if (coder.target('MATLAB') | coder.target('SystemC') |  coder.target('MEX') | coder.target('Sfun'))
%Do nothing here
else 
%do coder.ceval statements here
end