Re: question about testing for toolkit

[Richard Stallman]

    Which of the following would be a suitable test to determine whether the
    menu-bar is treated as ordinary text lines by `set-frame-size'?

    (and (not (eq system-type 'windows-nt)))
         (not (featurep 'x-toolkit)))

I think that is the best one.  If a toolkit is used,
which toolkit does not matter.