Why the Simulink s-function builder generated c file (wrapper.c) is removed after build (code generation)?

I used the S-Function builder to create a s-function with mex64, tlc, and _wrapper.c files. However, after build (code generation with Ctrl+B), the _wrapper.c file is always removed. What are the potential reasons and how should I fix it? Thanks for help!

Answer 1

[Urmila Rajpurohith]

In order to the S-function block to know where to look for the _wrapper.c, you need to explicitly tell it in the S-function modules field of the “S-function block”.

You can refer to below documentation link to know more information about the “S-function modules field”

https://www.mathworks.com/help/rtw/ug/build-integrated-code-within-the-simulink-environment.html#bp67s_y-3