Hey Paul On Sat, Jan 28, 2017 at 10:43 AM, Paul Smith <p...@mad-scientist.net> wrote:
> My suspicion is that somehow the recursion is invoking an older version > of make. In GNU make 4.2 the jobserver interface was stabilized and > published, so that other build tools could take advantage of it (if > desired); for example if your linker is multithreaded it could > participate in the jobserver feature, obtaining jobserver tokens for its > threads so it didn't overwhelm the system during linking. > > I scoured this system, and others that run make 4.2.1, and that is the only version of make in my PATH. You can try adding "VERBOSE=1" to your make invocation and look at the > way sub-makes are invoked and see if there's anything odd-looking about > it. > > If that's not it, I'm not sure what the problem is but perhaps the > VERBOSE=1 will help diagnose it anyway. > I tried with "make -j5 VERBOSE=1 NightlyBuild" but didn't see anything indicative on the console, or in the cmake output files that shed any light for me. What's weirder (and I forgot to mention) is that if I just build the project normally outside of my regression testing script (ie. "make -j5"), I don't get the jobserver warning.
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