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`process-environment' that earlier entries take precedence over later
ones.

New bit flag

f->menu_bar_vector can be nil, and not a vector.  From Ken Raeburn
<raeburn@gnu.org>.

really going on here.

and latin-N.
(SOME_MACHINE_LISP): Remove menu-bar, since it's loaded unconditionally now.
(lisp): Add latin-N, since they are preloaded.

reading at EOF.

of the only tempoarily set echoing flag for deciding when
the cancel echoing.

fonts_changed_p if need larger matrices due to vscrolling.
(try_scrolling, try_cursor_movement, redisplay_window): Give up on
this round of redisplay if make_cursor_line_fully_visible fails.
(CURSOR_MOVEMENT_*, SCROLLING_*): New enumerators.
(try_cursor_movement, try_scrolling): Use them instead of
integers.

and selected_window to the frame of the window whose mode-lines
are display, and to the window itself.
(redisplay_window, redisplay_mode_lines): Don't set selected_frame
here.

the image cache under us.

with a string value, use that string's multibyteness for
displaying.

version for after 21.1.

only if kill returns -1, and errno is ESRCH.

since this function can be called during GC.

(child_setup): Delete code in #ifdef vipc.

(display_mode_element): Display the string from decode_mode_spec
depending on its multibyteness.