Simulink Projects dependency analysis of mex file doesn't show all required C source files

I created an S-Function using the Legacy Code Tool. My S-Function C file wrapper calls my core C functions located in a different source file. Simulink Projects dependency graph shows that the S-Function C file wrapper is required by the derived mex. However, it doesn't go a level deeper to show that my source files are required by the S-Function C file wrapper. Hence, the impact analysis is incomplete. For example, if I modify my core source file, Simulink Projects is unaware that the mex file needs to be regenerated.

How can I fix this issue?

Answer 1

[Jason Nicholson]

File an enhancement request with Mathworks. However, I don't think they want to support the Dependency analysis of C/C++ files because of the massive difficulty of resolving dependencies in the C++ language.