Hi, Dear Sir or Madam, I am trying to port a C-coding application software: Scotch graph partitioning ( https://gforge.inria.fr/projects/scotch/ ) from Linux to Windows. Scotch is a graph partitioning software and it is only built and run on Linux platform. I can apply GCC compiler to it and successfully build Scotch. But on windows platform, I fail to compile and build Scotch software with the GCC compiler. Could you tell me what differences are there with GCC compiler between Windows and Linux? What do I need to do so that the C-coding Scotch can be successfully built on Windows? By the way on windows I also write a Makefile and use the 'NMAKE' to build it. Of course, the compiler GCC is specified in the Makefile. I look forward to your reply and your response will be highly appreciated. Have a good day, Best regards, Dingjun