Hello to everyone.

I found out the error while cloning the SU2 repository on Windows. The problem is related to OpDiLib module, in which the 'aux' directory exists. The 'aux' is a reserved name in Windows and cannot be used in file or catalog names.
I realize that OpDiLib is an external module and removing/renaming 'aux' directory (which actually prevents successful cloning on Windows) is not an option but there are probably other ways to fix it.

Best wishes

• OS: [Windows Server 2016]
• C++ compiler and version: [Mingw-w64 8.1.0]
• MPI implementation and version: [Microsoft MPI]
• SU2 Version: [7.2.0]