It seems there is a bit of an issue when compiling with Cygwin and CMake on Windows.

[wsy998]

I cannot use Cygwin and CMake on Windows 11. I want to use it for a CGO project, but CGO does not support MSVC. Therefore, I chose Cygwin and CMake, with GCC and G++ as the compilers (version 11.4), and Ninja as the generator. After installing the compilers with Cygwin, I noticed that a macro similar to 'unix' appears related to the compiler. There is also a recognition error in the CMakeLists.txt file.