[JohnFen]

Then build them. I'm not seeing the issue here, to be honest, so I'm not sure what I should be addressing.

If the issue is that you don't like how the dependency has arranged to build (I'm not sure why you'd actually care, but just in case...), then port the makefile (or whatever) to your preferred system.

Or, another guess, is the issue that you want to build all your dependencies as if they were an integral part of your own project? If that's the case, I would argue that you're doing it wrong and another tech stack would make you happier.