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On Tue, May 10, 2016 at 12:50:08PM -0400, Sean Conner wrote:
> won't work as intended in Lua 5.1 or 5.2 because of the new |
> operator in Lua 5.3.

The use of load() solves this specific case, no?

if _VERSION == "Lua 5.3" then
  bor = load("return function(a, b) return a | b end")()
elseif _VERSION == "Lua 5.2" then
  bor = bit32.bor
  bor = function(a, b) return a + b end