The ssb-dbgen code should be possible to build on Microsoft Windows - with MSVC, MinGW or Cygwin - or preferably all of them. However, I'm not using that platform, and while I've attempted to make sure not to break anything on it, it seems I must have.

So, let's restore support for MS Windows using these two paths I mentioned, and to prove it's been restored let's get it building via the CI mechanisms available on GitHub - with no errors and no warnings.