Fix missing prototypes for HAVE_NS (caused crash) and vrious warnings.

Fix missing prototypes for HAVE_NS (caused crash) and vrious warnings.

* configure.in: Check for util.h.

* src/bidi.c (bidi_dump_cached_states): Fix fprintf warning.

* src/emacs.c: Include src/nsterm.h if HAVE_NS.

* src/image.c (xpm_scan, xpm_make_color_table_v)
(xpm_put_color_table_v, xpm_get_color_table_v)
(xpm_make_color_table_h, xpm_put_color_table_h)
(xpm_get_color_table_h, xpm_str_to_color_key, xpm_load_image)
(xpm_load): Convert to ANSI C prototypes.

* src/lisp.h (fmod_float): Declare.

* src/menu.h (x_set_menu_bar_line): Declare.
(free_menubar_widget_value_tree et.al): Add HAVE_NS for these functions.

* src/window.c: Include menu.h.

* src/nsfns.m (have_menus_p, ns_display_info_for_name)
(x_set_cursor_type, ns_appkit_version_str)
(ns_appkit_version_int, ns_do_applescript)
(x_set_scroll_bar_default_width, x_sync, compute_tip_xy)
(syms_of_nsfns): Convert to ANSI C prototypes.

* src/nsfont.m (ns_fallback_entity, syms_of_nsfont): Convert to ANSI C
prototypes.

* src/nsimage.m (ns_load_image): Move NSTRACE after declarations.

* src/nsmenu.m (popup_activated, name_is_separator)
(syms_of_nsmenu): Convert to ANSI C prototypes.
(runMenuAt): Prototypes and move declarations before code.

* src/nsterm.h : Include sysselect.h.
(x_sync, x_get_focus_frame, x_set_mouse_position)
(x_set_mouse_pixel_position, x_make_frame_visible)
(x_make_frame_invisible, x_iconify_frame, x_char_width, x_char_height)
(x_pixel_width, x_pixel_height, x_set_frame_alpha, x_set_tool_bar_lines)
(x_activate_menubar, free_frame_menubar, ns_init_paths, ns_select)
(syms_of_nsterm, syms_of_nsfns, syms_of_nsmenu, syms_of_nsselect):
Declare

* src/process.c: Check HAVE_UTIL_H. Include src/nsterm.h if HAVE_NS.

* src/nsterm.m (ns_init_paths, ns_alloc_autorelease_pool)
(ns_ring_bell, ns_defined_color, hide_hourglass)
(x_display_pixel_height, x_display_pixel_width, syms_of_nsterm):
Convert to ANSI C prototypes.
(x_set_window_size, ns_draw_fringe_bitmap, judge): Move declarations
before code.

* src/sysdep.c: Check HAVE_TERM_H

* src/term.c: Check HAVE_SYS_IOCTL_H.

* src/unexmacosx.c (print_region_list, print_regions)
(build_region_list, find_emacs_zone_regions)
(unexec_regions_merge, read_load_commands, dump_it)
(unexec_init_emacs_zone): Convert to ANSI C prototypes.

* src/xfaces.c (x_create_gc, x_free_gc): Convert to ANSI C prototypes.