Once compiled, how do you know it is working?

set PATH=C:\Program Files (x86)\Intel\oneAPI\mkl\latest\redist\intel64;%PATH% libmklccgdll work

This pre-configures your PATH and library variables. If you are using a standard terminal, you may need to run: Once compiled, how do you know it is working

Or permanently via System Environment Variables. libmklccgdll work