GitLab

(tty_free_frame_resources, delete_tty): Prefer eassert to emacs_abort.
* image.c (make_image_cache): For struct image_cache, prefer xmalloc
to xzalloc and so avoid redundant call to memset.
* xterm.c (x_term_init): Avoid unnecessary initializations of dpyinfo
members because it is allocated with xzalloc and so already zeroed.

* lisp.h (xlispstrdupa): New macro.
(xlispstrdup): New prototype.
* alloc.c (xlispstrdup): New function.
* callint.c (Fcall_interactively):
* fileio.c (Ffile_name_directory, Fexpand_file_name)
(Fsubstitute_in_file_name):
* frame.c (Fmake_terminal_frame): Use xlispstrdupa.
* image.c (x_create_bitmap_from_file):
* w32term.c (w32_term_init):
* xterm.c (x_term_init): Use xlispstrdup.

* nsterm.m (ns_set_vertical_scroll_bar): Use it.  Use convenient
bool instead of BOOL.
* w32term.h (struct scroll_bar): Convert fringe_extended_p
from Lisp_Object to bitfield.  Adjust comment.
* w32term.c (x_scroll_bar_create): Adjust user.
Use WINDOW_FRINGE_EXTENDED_P and bool for boolean.
* xterm.c (XTset_vertical_scroll_bar): Likewise.
Use bool for boolean.
* xterm.h (struct scroll_bar): Prefer commonly used `unsigned'
to `unsigned int' when defining a bitfield.

Many of these go back to the old pre-C89 days, when they may have
been needed, but we've been assuming C89 or later for a while now.
* alloc.c (live_string_p, live_cons_p, live_symbol_p)
(live_float_p, live_misc_p, live_vector_p):
* buffer.c (compare_overlays, cmp_for_strings, mmap_find)
(mmap_alloc, alloc_buffer_text, enlarge_buffer_text)
(defvar_per_buffer):
* callint.c (Fcall_interactively):
* doc.c (Fsubstitute_command_keys):
* filelock.c (get_boot_time):
* frame.c (xrdb_get_resource):
* gtkutil.c (hierarchy_ch_cb, qttip_cb, style_changed_cb)
(delete_cb, xg_dialog_response_cb, xg_maybe_add_timer)
(xg_get_file_name_from_selector, menuitem_destroy_callback)
(menuitem_highlight_callback, menu_destroy_callback)
(xg_update_menu_item, xg_modify_menubar_widgets, menubar_map_cb)
(xg_tool_bar_callback, xg_get_tool_bar_widgets)
(xg_tool_bar_detach_callback, xg_tool_bar_attach_callback)
(xg_tool_bar_help_callback, tb_size_cb):
* image.c (xpm_alloc_color, png_read_from_memory)
(png_read_from_file, png_load_body, our_memory_skip_input_data)
(jpeg_memory_src, jpeg_file_src, imagemagick_load_image)
(syms_of_image):
* keymap.c (describe_map):
* nsfns.m (Fns_display_monitor_attributes_list):
* nsmenu.m (process_dialog:):
* nsterm.m (hold_event):
* process.c (wait_reading_process_output):
* regex.c (REGEX_REALLOCATE, re_set_registers, re_exec, regexec):
* scroll.c (do_direct_scrolling, scrolling_1):
* termcap.c (tgetent):
* window.c (check_window_containing, add_window_to_list)
(freeze_window_starts):
* xdisp.c (compare_overlay_entries, vmessage):
* xfns.c (x_window, x_get_monitor_attributes_xinerama)
(x_get_monitor_attributes_xrandr)
(Fx_display_monitor_attributes_list, x_display_info_for_name)
(Fx_open_connection, file_dialog_cb, file_dialog_unmap_cb):
* xfont.c (xfont_match, xfont_open):
* xmenu.c (x_menu_wait_for_event, menu_highlight_callback)
(menubar_selection_callback, menu_position_func)
(popup_selection_callback, create_and_show_popup_menu)
(dialog_selection_callback, create_and_show_dialog):
* xrdb.c (x_get_string_resource):
(main) [TESTRM]:
* xsmfns.c (x_session_check_input):
* xterm.c (x_draw_glyphless_glyph_string_foreground)
(xm_scroll_callback, xg_scroll_callback, xg_end_scroll_callback)
(xaw_jump_callback, xaw_scroll_callback):
Omit unnecessary casts.

don't check minor_code.

Fixes: debbugs:14417

* alloc.c (xstrdup): Tiny cleanup.  Add eassert.
* xfns.c (x_window):
* xrdb.c (x_get_customization_string):
* xterm.c (xim_initialize):
* w32fns.c (w32_window): Use xstrdup.
(w32_display_monitor_attributes_list):
* emacs.c (init_cmdargs):
* keyboard.c (PUSH_C_STR):
* nsfont.m (nsfont_open):
* sysdep.c (system_process_attributes):
* w32.c (system_process_attributes):
* xdisp.c (message1, message1_nolog): Use build_unibyte_string.

Always pass currently updated window as a parameter to update routines.
* dispextern.h (updated_window): Remove declaration.
(struct redisplay_interface): Pass window parameter to
write_glyphs, insert_glyphs, clear_end_of_line, cursor_to
and after_update_window_hook.
(x_write_glyphs, x_insert_glyphs, x_clear_end_of_line, x_cursor_to):
Adjust prototypes.
* dispnew.c (updated_window): Remove.
(redraw_overlapped_rows, update_marginal_area, update_text_area)
(update_window_line): Adjust to match redisplay interface changes.
* nsterm.m (ns_update_window_begin, ns_update_window_end)
(ns_scroll_run, ns_after_update_window_line):
* w32term.c (x_update_window_begin, x_update_window_end)
(x_after_update_window_line, x_scroll_run):
* xterm.c (x_update_window_begin, x_update_window_end)
(x_after_update_window_line, x_scroll_run):
* xdisp.c (x_write_glyphs, x_insert_glyphs, x_clear_end_of_line):
Likewise.  Adjust comments where appropriate.
(x_cursor_to): Simplify because this is always called during window
update (but install debugging check anyway).
(expose_window): Check must_be_updated_p flag to see whether this
function is called during window update.

* composite.c, font.c, font.h, fontset.c, fontset.h, frame.c, frame.h:
* ftfont.c, ftxfont.c, gtkutil.c, gtkutil.h, image.c, keyboard.c:
* menu.c, menu.h, msdos.c, nsfns.m, nsfont.m, nsmenu.m, nsterm.h:
* nsterm.m, scroll.c, term.c, w32fns.c, w32font.c, w32font.h:
* w32inevt.c, w32inevt.h, w32menu.c, w32notify.c, w32term.c, w32term.h:
* w32uniscribe.c, w32xfns.c, widget.c, window.c, xdisp.c, xfaces.c:
* xfns.c, xfont.c, xftfont.c, xmenu.c, xselect.c, xterm.c:
All related users changed.

* xterm.c (x_free_frame_resources): If white and black relief
GCs are allocated, always free them here.
* xfns.c (x_make_gc): Omit redundant initialization.
* widget.c (create_frame_gcs): Remove the leftover.
(EmacsFrameDestroy): Do nothing because all GCs are now freed
in x_free_frame_resources.

(x_display_ok): Use bool for booleans.
(x_draw_glyph_string_background, cvt_string_to_pixel):
(cvt_pixel_dtor): Drop unnecessary prototypes.
* xterm.h (x_display_ok): Adjust prototype.

frame.  This is better because this code always unconditionally
skips non-X frames in Vframe_list and issues the only XFlush if
we have more than one X frame on the same X display.

leftover which is not really used any more.
(handle_one_xevent, syms_of_xterm): Adjust users.

(compute_fringe_widths):
* w32term.c (x_draw_glyph_string):
* window.c (candidate_window_p, Frecenter):
* xfaces.c (realize_basic_faces, realize_default_face)
(Fbitmap_space_p, Finternal_set_lisp_face_attribute)
(x_update_menu_appearance, face_attr_equal_p, lface_equal_p):
* xfns.c (x_set_cursor_color, xic_free_xfontset):
* xmenu.c (Fx_menu_bar_open_internal):
* xselect.c (x_reply_selection_request, Fx_get_atom_name):
* xsettings.c (xft_settings_event):
* xterm.c (x_draw_glyph_string, x_had_errors_p):
Use bool for booleans.  Adjust style and comments where
appropriate.
* dispextern.h (draw_window_fringes, update_window_fringes)
(compute_fringe_widths):
* xterm.h (x_had_errors_p): Adjust prototype.

* lisp/emacs-lisp/debug.el (debug): Don't let-bind the debugger-outer-*
vars, except for debugger-outer-match-data.
(debugger-frame-number): Move check for "on a function call" from
callers into it.  Add `skip-base' argument.
(debugger-frame, debugger-frame-clear): Simplify accordingly.
(debugger-env-macro): Only reset the state stored in non-variables,
i.e. current-buffer and match-data.
(debugger-eval-expression): Rewrite using backtrace-eval.
* lisp/subr.el (internal--called-interactively-p--get-frame): Remove.
(called-interactively-p):
* lisp/emacs-lisp/edebug.el (edebug--called-interactively-skip): Use the new
`base' arg of backtrace-frame instead.
* src/eval.c (set_specpdl_old_value): New function.
(unbind_to): Minor simplification.
(get_backtrace_frame): New function.
(Fbacktrace_frame): Use it.  Add `base' argument.
(backtrace_eval_unrewind, Fbacktrace_eval): New functions.
(syms_of_eval): Export backtrace-eval.
* src/xterm.c (x_focus_changed): Simplify.

* etc/NEWS: Document blink-cursor-blinks and blink timers stopped.

* lisp/frame.el (blink-cursor-blinks): New defcustom.
(blink-cursor-blinks-done): New defvar.
(blink-cursor-start): Set blink-cursor-blinks-done to 1.
(blink-cursor-timer-function): Check if number of blinks has been
done on X and NS.
(blink-cursor-suspend, blink-cursor-check): New defuns.

* src/frame.c (Fhandle_focus_in, Fhandle_focus_out): New functions.
(Fhandle_switch_frame): Call Fhandle_focus_in.
(syms_of_frame): defsubr handle-focus-in/out.

* src/keyboard.c (Qfocus_in, Qfocus_out): New static objects.
(make_lispy_focus_in, make_lispy_focus_out): Declare and define.
(kbd_buffer_get_event): For FOCUS_IN, make a focus_in event if no
switch frame event is made.  Check ! NILP (event->arg) if X11 (moved
from xterm.c). Make focus_out event for FOCUS_OUT_EVENT if NS or X11
and there is a focused frame.
(head_table): Add focus-in and focus-out.
(keys_of_keyboard): Add focus-in and focus-out to Vspecial_event_map,
bind to handle-focus-in/out.

* src/nsterm.m (windowDidResignKey): If this is the focused frame, generate
FOCUS_OUT_EVENT.

* src/termhooks.h (enum event_kind): Add FOCUS_OUT_EVENT.

* src/xterm.c (x_focus_changed): Always generate FOCUS_IN_EVENT.
Set event->arg to Qt if switch-event shall be generated.
Generate FOCUS_OUT_EVENT for FocusOut if this is the focused frame.

This makes the code easier to read and the executable a bit smaller.
Do not replace all calls to Fcons that happen to create lists,
just calls that are intended to create lists.  For example, when
creating an alist that maps FOO to nil, use list1 (Fcons (FOO, Qnil))
rather than list1 (list1 (FOO)) or Fcons (Fcons (FOO, Qnil), Qnil).
Similarly for list2 through list5.
* buffer.c (Fget_buffer_create, Fmake_indirect_buffer):
* bytecode.c (exec_byte_code):
* callint.c (quotify_arg, Fcall_interactively):
* callproc.c (Fcall_process, create_temp_file):
* charset.c (load_charset_map_from_file)
(Fdefine_charset_internal, init_charset):
* coding.c (get_translation_table, detect_coding_system)
(Fcheck_coding_systems_region)
(Fset_terminal_coding_system_internal)
(Fdefine_coding_system_internal, Fdefine_coding_system_alias):
* composite.c (update_compositions, Ffind_composition_internal):
* dired.c (directory_files_internal, file_name_completion)
(Fsystem_users):
* dispnew.c (Fopen_termscript, bitch_at_user, init_display):
* doc.c (Fsnarf_documentation):
* editfns.c (Fmessage_box):
* emacs.c (main):
* eval.c (do_debug_on_call, signal_error, maybe_call_debugger)
(Feval, eval_sub, Ffuncall, apply_lambda):
* fileio.c (make_temp_name, Fcopy_file, Faccess_file)
(Fset_file_selinux_context, Fset_file_acl, Fset_file_modes)
(Fset_file_times, Finsert_file_contents)
(Fchoose_write_coding_system, Fwrite_region):
* fns.c (Flax_plist_put, Fyes_or_no_p, syms_of_fns):
* font.c (font_registry_charsets, font_parse_fcname)
(font_prepare_cache, font_update_drivers, Flist_fonts):
* fontset.c (Fset_fontset_font, Ffontset_info, syms_of_fontset):
* frame.c (make_frame, Fmake_terminal_frame)
(x_set_frame_parameters, x_report_frame_params)
(x_default_parameter, Fx_parse_geometry):
* ftfont.c (syms_of_ftfont):
* image.c (gif_load):
* keyboard.c (command_loop_1):
* keymap.c (Fmake_keymap, Fmake_sparse_keymap, access_keymap_1)
(Fcopy_keymap, append_key, Fcurrent_active_maps)
(Fminor_mode_key_binding, accessible_keymaps_1)
(Faccessible_keymaps, Fwhere_is_internal):
* lread.c (read_emacs_mule_char):
* menu.c (find_and_return_menu_selection):
* minibuf.c (get_minibuffer):
* nsfns.m (Fns_perform_service):
* nsfont.m (ns_script_to_charset):
* nsmenu.m (ns_popup_dialog):
* nsselect.m (ns_get_local_selection, ns_string_from_pasteboard)
(Fx_own_selection_internal):
* nsterm.m (append2):
* print.c (Fredirect_debugging_output)
(print_prune_string_charset):
* process.c (Fdelete_process, Fprocess_contact)
(Fformat_network_address, set_socket_option)
(read_and_dispose_of_process_output, write_queue_push)
(send_process, exec_sentinel):
* sound.c (Fplay_sound_internal):
* textprop.c (validate_plist, add_properties)
(Fput_text_property, Fadd_face_text_property)
(copy_text_properties, text_property_list, syms_of_textprop):
* unexaix.c (report_error):
* unexcoff.c (report_error):
* unexsol.c (unexec):
* xdisp.c (redisplay_tool_bar, store_mode_line_string)
(Fformat_mode_line, syms_of_xdisp):
* xfaces.c (set_font_frame_param)
(Finternal_lisp_face_attribute_values)
(Finternal_merge_in_global_face, syms_of_xfaces):
* xfns.c (x_default_scroll_bar_color_parameter)
(x_default_font_parameter, x_create_tip_frame):
* xfont.c (xfont_supported_scripts):
* xmenu.c (Fx_popup_dialog, xmenu_show, xdialog_show)
(menu_help_callback, xmenu_show):
* xml.c (make_dom):
* xterm.c (set_wm_state):
Prefer list1 (FOO) to Fcons (FOO, Qnil) when creating a list,
and similarly for list2 through list5.

* lib-src/ebrowse.c (USAGE): Remove macro with too-long string literal ...
(usage_message): ... and replace it with this new static constant
containing multiple literals.  All uses changed.
* lib-src/emacsclient.c (print_help_and_exit):
Rewrite to avoid string literals longer than the C89 limits.
(start_daemon_and_retry_set_socket):
Rewrite to avoid non-constant array initializer.
* lib-src/make-docfile.c (enum global_type): Omit trailing comma.
* src/bytecode.c (BYTE_CODE_THREADED): Do not define if __STRICT_ANSI__.
(B__dummy__): New dummy symbol, to pacify C89.
* src/dbusbind.c (XD_DEBUG_MESSAGE): Omit debugging on C89 hosts, since
they can't grok varargs macros.
* src/dispnew.c (add_window_display_history)
(add_frame_display_history):
* src/print.c (print_object):
* src/xdisp.c (debug_method_add):
Use %p printf format only for void pointers.
* src/emacs.c (usage_message): New constant, replacing ...
(USAGE1, USAGE2, USAGE3): Remove; they were too long for C89.
(main): Adjust to usage reorg.
* src/fns.c (syms_of_fns):
* src/profiler.c (syms_of_profiler):
Don't use non-constant struct initializers.
* src/gnutls.h (gnutls_initstage_t):
* src/lisp.h (enum Lisp_Fwd_Type):
* src/lread.c (lisp_file_lexically_bound_p):
* src/xsettings.c (anonymous enum):
Remove trailing comma.
* src/xsettings.c (apply_xft_settings): Use %f, not %lf; %lf is a C99ism.
* src/lisp.h (ENUM_BF): Use unsigned if pedantic.
(DEFUN_FUNCTION_INIT): New macro, that falls back on a cast if pre-C99.
(DEFUN): Use it.
* src/regex.c (const_re_char): New type, to pacify strict C89.
All uses of 'const re_char' replaced to use it.
* src/regex.h (_Restrict_): Rename from __restrict, to avoid clash
with glibc when strict C89.  This change is imported from gnulib.
All uses changed.
(_Restrict_arr_): Rename from __restrict_arr, similarly.
* src/sysdep.c (time_from_jiffies) [!HAVE_LONG_LONG_INT]:
Omit GNU_LINUX implementation, since it requires long long.
* src/xterm.c (x_draw_underwave):
Do not assume the traditional order of struct's members.
(x_term_init): Rewrite to avoid the need for non-constant structure
initializers.

* alloc.c [GC_MARK_STACK == GC_USE_GCPROS_CHECK_ZOMBIES]:
* xfaces.c:
Don't include stdio.h twice.
* buffer.c [USE_MMAP_FOR_BUFFERS]:
Don't include sys/types.h or stdio.h twice.
* fileio.c [WINDOWSNT | MSDOS]: Don't include fcntl.h twice.
* lread.c: Don't include coding.h twice.
* nsfont.m: Don't include frame.h twice.
* process.c [HAVE_RES_INIT]: Don't include <netinet/in.h> twice.
* ralloc.c: Don't include <unistd.h> twice.
* xdisp.c: Don't include font.h twice.
* xterm.c: Don't include fontset.h twice.
* xterm.h [USE_X_TOOLKIT]: Don't include X11/StringDefs.h twice.

* configure.ac: Leave GTK_OBJ and term_header alone if GTK 3
exists but cannot be compiled.
* src/xmenu.c (x_menu_wait_for_event) [!USE_GTK]:
* src/xterm.c (x_error_handler) [!USE_GTK]:
Do not use GTK 3.

* process.c (dummy_handler): New function.
(lib_child_handler): New static var.
(handle_child_signal): Invoke it.
(catch_child_signal): If a library has set up a signal handler,
save it into lib_child_handler.
(init_process_emacs): If using glib and not on Windows, tickle glib's
child-handling code so that it initializes its private SIGCHLD handler.
* syssignal.h (SA_SIGINFO): Default to 0.
* xterm.c (x_term_init): Remove D-bus hack that I installed on May
31; it should no longer be needed now.

* xterm.c (x_term_init): Inhibit D-Bus autolaunch if D-Bus is
not already configured.

Fixes: debbugs:14474

(GTK_CHECK_VERSION): New macro, if not already defined.
All uses of GTK_PREREQ, GTK_MAJOR_VERSION, etc.
replaced by GTK_CHECK_VERSION.

All simple uses of GTK_MAJOR_VERSION and GTK_MINOR_VERSION changed
to use this macro instead, for consistency and clarity.

* src/xterm.c: Include X11/XKBlib.h
(XTring_bell): Use XkbBell if HAVE_XKB.

Fixes: debbugs:14041

* alloc.c (xpalloc, Fgarbage_collect): Reorder conditions that are
written backwards.
* blockinput.h (input_blocked_p): Likewise.
* bytecode.c (exec_byte_code): Likewise.
* callproc.c (call_process_kill, call_process_cleanup)
(Fcall_process): Likewise.
* ccl.c (ccl_driver, resolve_symbol_ccl_program)
(Fccl_execute_on_string): Likewise.
* character.c (string_escape_byte8): Likewise.
* charset.c (read_hex): Likewise.
* cm.c (calccost): Likewise.
* data.c (cons_to_unsigned): Likewise.
* dired.c (directory_files_internal, file_name_completion):
Likewise.
* dispnew.c (scrolling_window, update_frame_1, Fsleep_for)
(sit_for): Likewise.
* doc.c (Fsubstitute_command_keys): Likewise.
* doprnt.c (doprnt): Likewise.
* editfns.c (hi_time, decode_time_components, Fformat): Likewise.
* emacsgtkfixed.c: Likewise.
* fileio.c (file_offset, Fwrite_region): Likewise.
* floatfns.c (Fexpt, fmod_float): Likewise.
* fns.c (larger_vector, make_hash_table, Fmake_hash_table):
Likewise.
* font.c (font_intern_prop): Likewise.
* frame.c (x_set_alpha): Likewise.
* gtkutil.c (get_utf8_string): Likewise.
* indent.c (check_display_width): Likewise.
* intervals.c (create_root_interval, rotate_right, rotate_left)
(split_interval_right, split_interval_left)
(adjust_intervals_for_insertion, delete_node)
(interval_deletion_adjustment, adjust_intervals_for_deletion)
(merge_interval_right, merge_interval_left, copy_intervals)
(set_intervals_multibyte_1): Likewise.
* keyboard.c (gobble_input, append_tool_bar_item): Likewise.
* keymap.c (Fkey_description): Likewise.
* lisp.h (FIXNUM_OVERFLOW_P, vcopy): Likewise.
* lread.c (openp, read_integer, read1, string_to_number):
Likewise.
* menu.c (ensure_menu_items): Likewise.
* minibuf.c (read_minibuf_noninteractive): Likewise.
* print.c (printchar, strout): Likewise.
* process.c (create_process, Faccept_process_output)
(wait_reading_process_output, read_process_output, send_process)
(wait_reading_process_output): Likewise.
* profiler.c (make_log, handle_profiler_signal): Likewise.
* regex.c (re_exec): Likewise.
* regex.h: Likewise.
* search.c (looking_at_1, Freplace_match): Likewise.
* sysdep.c (get_child_status, procfs_ttyname)
(procfs_get_total_memory): Likewise.
* systime.h (EMACS_TIME_VALID_P): Likewise.
* term.c (dissociate_if_controlling_tty): Likewise.
* window.c (get_phys_cursor_glyph): Likewise.
* xdisp.c (init_iterator, redisplay_internal, redisplay_window)
(try_window_reusing_current_matrix, try_window_id, pint2hrstr):
Likewise.
* xfns.c (Fx_window_property): Likewise.
* xmenu.c (set_frame_menubar): Likewise.
* xselect.c (x_get_window_property, x_handle_dnd_message):
Likewise.
* xsmfns.c (smc_save_yourself_CB): Likewise.
* xterm.c (x_scroll_bar_set_handle): Likewise.

(list4i): Move from window.c and make LISP_INLINE.
* editfns.c (make_lisp_time):
* fns.c (Flocale_info):
* keyboard.c (parse_modifiers):
* xterm.c (x_ewmh_activate_frame): Use list2i.
* instel.c (signal_after_change):
* nsfns.m (Fx_server_version, Fxw_color_values):
* w32fns.c (Fxw_color_values, Fx_server_version):
* xfns.c (Fxw_color_values, Fx_server_version): Use list3i.
* fileio.c (Fvisited_file_modtime):
* nsfns.m (Fns_display_usable_bounds):
* w32.c (ltime): Use list4i.

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

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

This is possible because async input is gone; for details, see
http://lists.gnu.org/archive/html/emacs-devel/2012-12/msg00734.html.
* frame.h (struct frame): Remove async_visible and async_iconified
members, convert garbaged to unsigned bitfield.  Adjust comments.
(FRAME_SAMPLE_VISIBILITY): Remove.  Adjust all users.
(SET_FRAME_VISIBLE, SET_FRAME_ICONIFIED): New macros.
* frame.c, gtkutil.c, term.c, w32fns.c, window.c, xdisp.c:
Consistently use SET_FRAME_VISIBLE, SET_FRAME_ICONIFIED,
FRAME_VISIBLE_P and FRAME_ICONIFIED_P macros where appropriate.
* w32term.c: Ditto.
(w32_read_socket): Save iconified state to generate DEICONIFY_EVENT
properly.  Likewise for obscured.
* xterm.c: Ditto.
(handle_one_xevent): Save visible state go generate ICONIFY_EVENT
properly.
* nsterm.m: Ditto.
(windowDidDeminiaturize): Generate DEICONIFY_EVENT.

* lisp/cus-start.el (all): Add scroll-bar-adjust-thumb-portion.

* src/xterm.c (syms_of_xterm): Adjust documentation for
scroll-bar-adjust-thumb-portion.

* xterm.c (scroll-bar-adjust-thumb-portion): New variable to
determine whether scroll bar thumb size should be adjusted or
not. Use variable for MOTIF.

* gtkutil.c (scroll-bar-adjust-thumb-portion): Use variable for
GTK.

* dired.c (file_name_completion):
* doc.c (get_doc_string):
* floatfns.c (round2):
* font.c (font_score, font_delete_unmatched):
* fringe.c (compute_fringe_widths):
* lread.c (read_list):
* minibuf.c (Ftry_completion):
* term.c (tty_ins_del_lines):
* xterm.c (x_draw_image_foreground, x_draw_image_foreground_1):
Use eabs (x) rather than open-coding it as (x < 0 ? -x : x).

* gtkutil.c (xg_set_toolkit_scroll_bar_thumb):
* window.c (Frecenter):
* xdisp.c (resize_mini_window, hscroll_window_tree, draw_glyphs):
* xterm.c (x_set_toolkit_scroll_bar_thumb): Likewise.

* admin/merge-gnulib (GNULIB_MODULES): Add putenv, unsetenv.
* lib/putenv.c, lib/unsetenv.c, m4/putenv.m4, m4/setenv.m4:
New files, copied automatically from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/alloc.c (xputenv): New function.
* src/dbusbind.c (Fdbus_init_bus):
* src/emacs.c (main):
* src/xterm.c (x_term_init):
Use xputenv instead of setenv or putenv, to detect memory exhaustion.
* src/editfns.c (initial_tz): Move static var decl up.
(tzvalbuf_in_environ): New static var.
(init_editfns):	Initialize these two static vars.
(Fencode_time): Don't assume arbitrary limit on EMACS_INT width.
Save old TZ value on stack, if it's small.
(Fencode_time, set_time_zone_rule): Don't modify 'environ' directly;
instead, use xputenv+unsetenv to set and restore TZ.
(environbuf): Remove static var.  All uses removed.
(Fset_time_zone_rule): Do not save TZ and environ;
no longer needed here.
(set_time_zone_rule_tz1, set_time_zone_rule_tz2) [LOCALTIME_CACHE]:
Move to inside set_time_zone_rule; they don't need file scope any more.
(set_time_zone_rule): Maintain the TZ=value string separately.
(syms_of_editfns): Don't initialize initial_tz;
init_editfns now does it.
* src/emacs.c (dump_tz) [HAVE_TZSET]: Now const.
* src/lisp.h (xputenv): New decl.

Fixes: debbugs:13070

member.  Adjust users.  Convert mouse_face_past_end, mouse_face_defer
and mouse_face_hidden members to a bitfields.
* frame.h (struct frame): Remove set-but-not-used space_width member.
(FRAME_SPACE_WIDTH): Remove.
* nsterm.m, w32term.c, xterm.c: Adjust users.
* termchar.h (struct tty_display_info): Remove set-but-unused se_is_so
member.  Adjust users.  Convert term_initted, delete_in_insert_mode,
costs_set, insert_mode, standout_mode, cursor_hidden and flow_control
members to a bitfields.

Fixes: debbugs:10500

* xterm.c (x_draw_relief_rect, x_draw_image_relief): Fix relief
display for sliced images.

* w32term.c (w32_draw_relief_rect, x_draw_image_relief): Likewise.

Fixes: debbugs:10500