EDIT: Since even Karpinski said “–compile={yes|no|all|min} – I have no idea what this does, despite reading julia --h” in the issue I posted below, I’m not even going to guess (again) and take my original with a grain of salt:
Does this for sure apply for juliac? I didn’t see it in the README (and haven’t tried juliac).
This allies to julia, see julia --help, you get different options. Did you just mistype? There it simply controls the optimizer I think, e.g. you get an interpreter(?) that’s slower, but faster to start up.
See also e.g.: -O option.