Debug algorithm portion of S-function (Separated from S-function´s Simulink interface) with a tool different from MSFT Visual Studio 2022

Dear Community,

We are integrating external legacy C-Code with a Simulink Model using Matlab 2022b within Windows 10. For such integration we are calling the external C code from a S-Function or put it in another way we are using a wrapper S-Function (labeled in this way on the "Integrating C Code with Simulink" training documentation). With this in mind, I know that is possible to debug the external code during simulation using Microsoft Visual Studio 2022 as it is described in the following link:

https://ch.mathworks.com/help/simulink/sfg/debugging-c-mex-s-functions.html

However, in our particular case, unfortunately we can not acquire a Visual Studio license to debug the external C code in our model. Researching over the internet I found the following post from 2018:

https://ch.mathworks.com/matlabcentral/answers/410756-how-can-i-debug-mex-files-without-a-visual-studio-license

where it is said that it is possible to debug the external c code with the Visual Studio Express now called Visual Studio community, however for enterprise customers, also it requires a license.

I am wondering, since the latter post is already almost 6 years old, if you can suggest another way to debug external C code with a open source/ license tool different from Visual Studio.

Thank you very much in advance