generate-thb-ver

#!/bin/sh
DATE=$1

cat <<EOF
local M = {
  version = "$DATE",
}
function M.atleast(v)
  if M.version < v then
    error('thb version > '..v..' required (you have '..M.version..')', 2)
  end
  return M
end
function M.withjit()
  if not require'thread'.pcall(require, 'jit') then
    error('LuaJIT thb required (you have PUC Lua thb)', 2)
  end
  return M
end
return M
EOF