You can change C/C++ backend compiler with --cc option. [https://nim-lang.org/docs/nimc.html#compiler-selection](https://nim-lang.org/docs/nimc.html#compiler-selection)
For example, \--cc:vcc use cl.exe in MS Visual Studio. \--cc:clang use clang.
If you want to use different gcc, add following option to your cfg file.
gcc.exe = "c:\\path\\to\\your\\gcc.exe"
Run
