Comment (by Zach Etienne):

@Roland Haas I still have to comment out all vmask stuff in the Vectors thorn to get ETK compiled on Spruce Knob. Given that everything works fine if it’s commented out, it seems that this is dead code that should be removed?

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2115/supermike-ii-fails-to-compile