This exactly matches my own research from a few years ago. I also landed on Premake, which did work well enough for me at the time and remains the leading cont

This exactly matches my own research from a few years ago. I also landed on Premake, which did work well enough for me at the time and remains the leading contender. That said, I've since been keeping a keen eye on the Ziglang project as they seem to be the most likely (only?!) real candidate for a minimal, cross target build environment.