I have two sub folders in my project. First one is the Source folder which contains main.cpp file
and the second one is ImGui folder which contains all needed ImGui cpp and header files.

I have two sub folders in my project. First one is the Source folder which contains main.cpp file
and the second one is ImGui folder which contains all needed ImGui cpp and header files.

I’m trying to create a makefile to build with different flavors.
i.e.

i have this error, which i would say due to a wrong statement in the master file. i put the .h file on top. Compiling the files, through makefile, I get this error and I don’t understand how to fix it
src/master.c:83: undefined reference to `init_ipc' collect2: error: ld returned 1 exit status make: *** [Makefile:20: master] Errore 1

I know this is a well known problem and there are many mistakes and solutions in the SO. However this is what I cannot fix it anyway. As you can see, there is no wrongly inclusion of *.c files.

I have the following makefile

I’m trying to build a C++ pistache server code generated by OpenApi generator, on a Debian 11 (and another Debian 12) computer.