bug#34569: 26.1.90; Zero wide scroll bars

[martin rudalics <rudalics@gmx.at>]

 >> It means though that we have to do some non-standard surgery in the
 >> frame parameters area.
 >
 > That's okay, we already do similar things with some parameters.

You didn't answer that question:

 > Note that x_report_frame_params inserts the
 > zero value automatically via
 >
 >   store_in_alist (alistptr, Qscroll_bar_width,
 >           (! FRAME_HAS_VERTICAL_SCROLL_BARS (f)
 >            ? make_fixnum (0)
 >            : FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0
 >            ? make_fixnum (FRAME_CONFIG_SCROLL_BAR_WIDTH (f))
 >            /* nil means "use default width"
 >               for non-toolkit scroll bar.
 >               ruler-mode.el depends on this.  */
 >            : Qnil));
 >
 > What should we use instead?

martin