Re: 23.0.50; Cannot run calculator on TTY

[martin rudalics]

> For something like the calculator that wants to claim as small a
> window as possible, I would guess that the header line is not too
> useful, especially since it has a modeline.

There should be no problem doing

        ((not (get-buffer-window calculator-buffer))
         (let ((split-window-keep-point nil)
               (window-min-height 2))
           (setq header-line-format nil)

in `calculator'.

I wonder, however, why `header-line-format' has a non-nil value in the
first place.  Do you have an advice creating a header line for all sorts
of windows?