Aaarrgghhh! That piece of crap build system we use is acting again. Nobody touched it, nobody had time to replace it with something reasonable and now it starts not building as far as I can tell random parts of system. I guess it can sense we wanted to release :-/ So no time for any nice project and back to kicking its shit together :-(

What kind of project if one's allowed to ask?

Would prefer to stay anonymous so not get into specifics, but hopefully fixed it. Moved one dependency from included file to files where it was included and suddenly it stopped disabling part of the system.

One more rant about how great it is - it worked flawlessly on my devel machine, was disabling stuff only on build farm. And no, leftovers from previous build were not the issue - run into those a year ago.