Move scroll-bar-adjust-thumb-portion.

* xterm.c (syms_of_xterm): Move scroll-bar-adjust-thumb-portion ...

* frame.c (syms_of_frame): ... to here.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/frame.c b/src/frame.c
index 9c26af819bc..0fa821682f3 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -4233,6 +4233,16 @@ Setting this variable does not affect existing frames, only new ones.  */);
   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.  */);