* s/darwin.h (SYSTEM_PURESIZE_EXTRA): Define here.

* s/darwin.h (SYSTEM_PURESIZE_EXTRA): Define here.

* termhooks.h (union display_info): Add mac_display_info.

* term.c (init_tty): Only use terminal->kboard when MULTI_KBOARD
is defined.

* macterm.h (struct mac_display_info): Add terminal.

* w32term.c (w32_initialize): Make static.

* macterm.c (XTset_terminal_modes): Add a terminal parameter.
(XTreset_terminal_modes): Likewise.
(x_clear_frame): Add a frame parameter.
(note_mouse_movement): Get rif from the frame.
(mac_term_init): Initialize the terminal.
(mac_initialize): Make static and move terminal initialization ...
(mac_create_terminal): ... in this new function.

* macmenu.c: Reorder includes.
(Fx_popup_menu): Use terminal specific mouse_position_hook.

* macfns.c (x_set_mouse_color): Get rif from the frame.
(x_set_tool_bar_lines): Don't use updating_frame.
(mac_window): Add 2 new parameters for consistency with other
systems.
(Fx_create_frame): Fix doc string. Rename the parameter.
(Fx_create_frame): Set the frame parameters following what is done
in X11 and w32.
(Fx_open_connection): Remove window-system check.
(start_hourglass): Likewise.
(x_create_tip_frame): Get the keyboard from the terminal.

* w32fns.c (Fx_create_frame): Use kboard from the terminal.

* term/mac-win.el: Provide mac-win.
(mac-initialized): New variable.
(mac-initialize-window-system): New function. Move global setup
here.
(handle-args-function-alist, frame-creation-function-alist):
(window-system-initialization-alist): Add mac entries.

* loadup.el: Load mac-win on a Mac.