[mcv]

This reminds me of my very first job after university. We used Visual C++, with some homebrew framework with one gigantic header file that tied everything together. That header file contained thousands or possibly tens of thousands of const uints, defining all sorts of labels, identifiers and whatever. And that header file was included absolutely everywhere, so every object file got those tens of thousands of const uints taking up space.

Compilation at the time took over 2 hours.

At some point I wrote a macro that replaced all those automatically generated const uints with #defines, and that cut compilation time to half an hour. It was quickly declared the biggest productivity boost by the project lead.