Vdefault_frame_scroll_bars = Qnil;
#endif
+ DEFVAR_BOOL ("scroll-bar-adjust-thumb-portion",
+ scroll_bar_adjust_thumb_portion_p,
+ doc: /* Adjust thumb for overscrolling for Gtk+ and MOTIF.
+Non-nil means adjust the thumb in the scroll bar so it can be dragged downwards
+even if the end of the buffer is shown (i.e. overscrolling).
+Set to nil if you want the thumb to be at the bottom when the end of the buffer
+is shown. Also, the thumb fills the whole scroll bar when the entire buffer
+is visible. In this case you can not overscroll. */);
+ scroll_bar_adjust_thumb_portion_p = 1;
+
DEFVAR_LISP ("terminal-frame", Vterminal_frame,
doc: /* The initial frame-object, which represents Emacs's stdout. */);