As with any modern C++ applications, the support for GCC and MINGW is deprecated.
you must install Visual Studio first.
This is the same with npm and flutter packages.
Building
SuRun contains both 64bit and 32bit parts. to build you can use config “x64 Unicode Debug|x64” and “SuRun32 Unicode Debug|win32”.
As with decisions, I have dropped Release builds.
You can just run surun_build
in the python venv, it calls the build script.