> If you provide a limit you'll see different behavior, e.g.: > > make -j5
I see, thank you. It might not hurt to mention this in the manual, obvious though it may seem. Having passed that hurdle, I see that GCC does not handle the named-semaphore jobserver in native GNU Make on Windows. (I had to read GCC's source to see it, since the error in that case simply says "'--jobserver-auth=' is not present in MAKEFLAGS". This subproblem appears to be unintentional and I have reported it on the GCC bugtracker.) None of that is a Make problem, of course.
