On Tue, Nov 5, 2019 at 8:40 AM Paul Eggert <eggert@cs.ucla.edu> wrote:

> + (overflow-error
> + (if (or (natnump x) (cl-evenp y))
> + 1.0e+INF
> + -1.0e+INF))))

That introduces a run-time dependency on cl-lib:

ELC calculator.elc

In end of data:
calculator.el:1644:1:Warning: the function `cl-evenp' might not be defined at
runtime.