(xaw3d_arrow_scroll, xaw3d_pick_top): New variables.
(xt_action_hook): Replace XAW3D by XAW.
(xaw3d_jump_callback): Renamed to xaw_jump_callback.
(xaw_jump_callback): Renamed from xaw3d_jump_callback.
Determine epsilon dynamically and don't try to be too clever.
(xaw3d_scroll_callback): Renamed to xaw_scroll_callback.
(xaw_scroll_callback): Renamed from xaw3d_scroll_callback.
Handle both Xaw3d with arrow-scrollbars and with Xaw-style
scrollbar (using `ratio').
(x_create_toolkit_scroll_bar): Try to detect which style of Xaw3d
scrollbar we have so as to set it up more optimally and to fix
xaw3d_arrow_scroll and xaw3d_pick_top.
(x_set_toolkit_scroll_bar_thumb): Try to maintain 2 spare pixels at the
bottom of the Xaw3d scrollbar, to work around its tendency to refuse
shrinking the thumb. Also make sure that `XawScrollbarSetThumb'
is not ignored, using a major gross hack.
(x_initialize): Init default values for xaw3d_arrow_scroll and
xaw3d_pick_top.
(font-lock-add-keywords): Rename `major-mode' into `mode'.
(font-lock-remove-keywords): Added a dummy `mode' argument for
potential future support.
(font-lock-fontify-anchored-keywords,
(font-lock-fontify-keywords-region): Only handle multiline strings
if necessary (avoids a pathological behavior in (f.ex) diff-mode).
duplicate definition of ElfW.
(find_section): Copied from unexsgi.c.
(unexec): Use find_section. Adjust whitespace. Initialize
new_data2_offset based on old_data, not sbss (this fixes a bug on
IRIX6). Change #ifdef __mips to __sgi, since it's IRIX-specific.
Adjust test for presence of .mdebug section to the new return
value of find_section.
Merge changes from 20.5.
(unexec): Handle .lit4 and .lit8 unconditionally.
(diff-minor-mode, diff-minor-mode-prefix, diff-minor-mode-map):
New code to support the minor mode version.
(diff-recenter): New function.
(diff-next-hunk, diff-next-file): Use it.
(diff-remembered-files-alist): New var.
(diff-merge-strings): New function.
(diff-find-file-name): Make it smarter and use the user's input more.
(diff-mode): Cosmetic changes.
off-by-one problem that could force re-fontifying the whole buffer.
(font-lock-remove-keywords): New function.
(font-lock-add-keywords): Use the new function to ensure idempotence.
viper-minibuffer-real-start): new functions.
(viper-read-string-with-history,viper-file-add-suffix,
viper-trim-replace-chars-to-delete-if-necessary): adapt to the
change in the status of the minibuffer prompt.
