Due to the way our deployment works, I cannot use this because of the way the library is designed.
It would be great if the FixidityLib was purely functional, such that all values are passed in. I.e.
library FixidityLib {
function (...) internal pure view {
}
}
That way it's very flexible in how it can be used. Whether as an external library, contract, or otherwise.
In the meantime I've simply copied the code over.