GitLab

* font.h (struct font_driver): Convert text_extents to
return void because returned value is never actually used.
* macfont.c (macfont_text_extents):
* w32font.c (w32font_text_extents):
* xftfont.c (xftfont_text_extents): Adjust to return void
and assume that 'metrics' argument is always non-NULL.
* ftfont.c (ftfont_text_extents):
* xfont.c (xfont_text_extents): Likewise.  Avoid redundant memset.

* font.h (enum font_property_index): Remove FONT_ENTITY_INDEX (no
users) and FONT_FORMAT_INDEX (set by a few font drivers but never
really used).
(FONT_ENTITY_NOT_LOADABLE, FONT_ENTITY_SET_NOT_LOADABLE): Remove;
unused.
* ftfont.h (ftfont_font_format): Remove prototype.
* ftfont.c (ftfont_font_format): Remove; now unused.
(ftfont_open):
* nsfont.m (nsfont_open):
* w32font.c (w32font_open_internal):
* w32uniscribe.c (uniscribe_open):
* xfont.c (xfont_open):
* xftfont.c (xftfont_open): All users changed.

not used by any font driver.
* ftfont.c (ftfont_driver):
* macfont.m (macfont_driver):
* nsfont.m (nsfont_driver):
* w32font.c (w32font_driver):
* w32uniscribe.c (uniscribe_font_driver):
* xfont.c (xfont_driver): Related users changed.
* xselect.c (x_get_window_property): Use convenient xmalloc.
Call to xfree only if some data was really allocated.

* macfont.m (macfont_draw): Merge changes from Macport.

* nsterm.m (ns_draw_glyph_string): Move isComposite and end from
macfont.m, call draw with adjusted arguments so font drivers
don't need to do that.

* nsfont.m (nsfont_draw): Simplify as arguments are adjusted in
nsterm.m now.

* nsfont.m, w32font.c, xfont.c, xftfont.c: Revert last and
2013-12-12 font-related change to avoid Bug#16128, which
is quite hard to fix without even more substantial changes.

font driver which was used to create this entity.
(struct font) [HAVE_WINDOW_SYSTEM]: New field to record
frame where the font was opened.
(font_close_object): Add prototype.
* font.c (font_make_entity) [HAVE_NS]: Zero out driver field.
(font_close_object): Not static any more.  Lost frame arg.
Adjust comment and users.
* alloc.c (cleanup_vector): Call font_close_object to adjust
per-frame font counters correctly.  If HAVE_NS, also call
driver-specific cleanup for font-entity objects.
* ftfont.c (ftfont_open):
* nsfont.m (nsfont_open):
* w32font.c (w32font_open_internal):
* xfont.c (xfont_open):
* xftfont.c (xftfont_open): Save frame pointer in font object.
* macfont.m (macfont_open): Likewise.
(macfont_descriptor_entity): Save driver pointer to be able
to call its free_entity routine when font-entity is swept.
* ftxfont.c (ftxfont_open): Add eassert because frame
pointer should be saved by ftfont_driver.open.

* font.h (struct font) [HAVE_WINDOW_SYSTEM]: Group members which are
used on graphic displays only.  Remove unused 'font_encoder' member.
* nsfont.m (nsfont_open):
* w32font.c (w32font_open_internal): Adjust users.

* font.h (struct font): Drop frame argument.  Adjust comment.
* font.c (font_clear_cache, font_close_object): Adjust users.
* ftfont.c (ftfont_close):
* ftxfont.c (ftxfont_close):
* macfont.m (macfont_close):
* nsfont.m (nsfont_close):
* w32font.c (w32font_close):
* xfont.c (xfont_close):
* xftfont.c (xftfont_close): Adjust driver-specific close
functions, tweak comments and make functions safe if called
more than once for the same font object.

* nsterm.m (setMarkedText:selectedRange:):
(deleteWorkingText):
* nsmenu.m (addDisplayItemWithImage:idx:tag:helpText:enabled:):
* nsfont.m (ns_get_covering_families, ns_findfonts): Cast NSLog
argument to unsigned long to avoid warning.
(nsfont_draw): Use 0.25 instead of  Fix2X (kATSItalicQDSkew).

* process.c (wait_reading_process_output): Change int pnamelen to
socklen_t.

* configure.ac: Add check for OSX 10.5, required for macfont.o.

* etc/NEWS: Mention the macfont backend.

* src/Makefile.in (NS_OBJ, SOME_MACHINE_OBJECTS): Add macfont.o.

* src/font.c (syms_of_font): Call syms_of_macfont.

* src/font.h: Declare syms_of_macfont.

* src/nsfns.m: Include macfont.h.
(Fx_create_frame): Register macfont driver, make a better default font.
(Fns_popup_font_panel): Get font from macfont driver, if used.

* src/nsfont.m (ns_tmp_flags, ns_tmp_font): Remove.
(nsfont_open): Set font driver type.
Set font->ascent and font->descent.  Figure out font instead of
ns_tmp_font, and flags instead of ns_tmp_flags.
Fix indentation. Remove call to ns_draw_text_decoration,
moved to nsterm.

* src/nsterm.m: Include macfont.h.
(ns_tmp_flags, ns_tmp_font): Remove.
(ns_compute_glyph_string_overhangs): Check for driver Qns.
(ns_draw_glyph_string): Use local variables instead of ns_tmp_flags,
ns_tmp_font.  Call ns_draw_text_decoration here instead of nsfont.m.
(changeFont:): Fix code style.  Check for font driver type when
getiing font.

* src/nsterm.h (FONT_DESCENT, FONT_ASCENT): Define to (f)->ascent and
(f)->descent.

All of them are replaced with FRAME_DISPLAY_INFO, defined in
each port to reference the port-specific window system data.
* msdos.h (FRAME_X_DISPLAY_INFO): Remove.
(FRAME_DISPLAY_INFO): Define.
* w32term.h (FRAME_W32_DISPLAY_INFO, FRAME_X_DISPLAY_INFO): Remove.
(FRAME_DISPLAY_INFO): Define.  Adjust users.
* xterm.h (FRAME_X_DISPLAY_INFO): Remove.
(FRAME_DISPLAY_INFO): Define.  Adjust users.
* frame.h (FRAME_RES_X, FRAME_RES_Y): Unify.
* font.c, frame.c, gtkutil.c, image.c, menu.c, msdos.c, nsfns.m:
* nsfont.m, nsterm.m, w32fns.c, w32font.c, w32menu.c, w32term.c:
* w32xfns.c, widget.c, xdisp.c, xfaces.c, xfns.c, xfont.c, xmenu.c:
* xselect.c, xterm.c: All related users changed.

(nsfont_encode_char): Use INVALID_GLYPH.
(ns_uni_to_glyphs): Ditto, check for NSNullGlyph.

Fixes: debbugs:15138

* 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.

* 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.

* font.h (struct font_driver): Change list, match, and list_family
functions to accept struct frame * as first arg.
* font.c (font_score, font_compare, font_sort_entities): Remove
prototypes.
(font_sort_entities, font_list_entities, font_select_entity):
(font_find_for_lface, Flist_fonts, Ffont_family_list): Adjust to
match font API change.
* xfont.c (xfont_list, xfont_match, xfont_list_family):
* ftfont.c (ftfont_list, ftfont_match, ftfont_list_family):
* ftxfont.c (ftxfont_list, ftxfont_match):
* xftfont.c (xftfont_list, xftfont_match):
* nsfont.m (nsfont_list, nsfont_match, nsfont_list_family):
* w32font.c (w32font_list, w32font_match, w32font_list):
(w32font_list_internal, w32_font_match_internal): Likewise.
* xfaces.c (Fx_family_fonts): Adjust user.

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.

* 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.

* nextstep/templates/Info-gnustep.plist.in: Add NSDocumentClass EmacsDocument.

* src/nsfns.m (x_set_foreground_color, x_set_background_color): Use
EmacsCGFloat.
(ns_implicitly_set_icon_type, Fx_create_frame): Make static, remove
unused variables.
(Fns_read_file_name): Keep track if panel is for save.  Use
ns_filename_from_panel/ns_directory_from_panel.
(Fns_list_services): delegate only used for COCOA.
(Fns_convert_utf8_nfd_to_nfc): Remove warning for GNUStep.  Just
return the input if GNUStep.
(x_screen_planes): Remove.
(Fxw_color_values): Use EmacsCGFloat
(Fns_display_monitor_attributes_list): Only get screen number for
Cocoa.
(getDirectory, getFilename): Removed from EmacsOpenPanel and
EmacsSavePanel.
(EmacsOpenPanel:ok:): Use ns_filename_from_panel and
ns_directory_from_panel.

* src/nsfont.m (ns_attribute_fvalue, ns_spec_to_descriptor)
(ns_charset_covers, ns_get_covering_families, nsfont_open):
Use F suffix on floats.
(ns_char_width): Returns CGFloat.
(ns_ascii_average_width): w is CGFloat instead of float.
(nsfont_draw): cbuf and c are unsigned. Cast to char* in call to
DPSxshow.
(ns_glyph_metrics): CGFloat instead of float.

* src/nsimage.m (setXBMColor:, getPixelAtX:Y:): Use EmacsCGFloat.

* src/nsmenu.m (ns_update_menubar): Make static.
(x_activate_menubar): Surround with ifdef NS_IMPL_COCOA
(fillWithWidgetValue:): Add cast to SEL for setAction.
(addSubmenuWithTitle:forFrame:): Add cast to SEL for action.
(update_frame_tool_bar): Update code for GNUStep.
(clearAll): New method.
(addDisplayItemWithImage:idx:tag:helpText:enabled:): Handle new tag
argument. Call insertItemWithItemIdentifier when NS_IMPL_GNUSTEP. Move
identifierToItem setObject and activeIdentifiers addObject before
call to insertItemWithItemIdentifier.
(validateVisibleItems): Fix indentation.
(toolbarAllowedItemIdentifiers:): Return activeIdentifiers.
(initWithContentRect:styleMask:backing:defer:): Add ClosableWindow and
UtilityWindow to aStyle, remove call to setStyleMask.

* src/nsselect.m (ns_get_local_selection): Remove unused variable type.

* src/nsterm.h (EmacsCGFloat): Typedef for OSX and GNUStep when the size
of CGFloat differs.
(EmacsApp): New variable nextappdefined.  Declare sendFromMainThread
when NS_IMPL_GNUSTEP.
(EmacsDocument): Declare when NS_IMPL_GNUSTEP.
(EmacsView): Remove unlockFocusNeedsFlush, add windowDidMove.
(EmacsToolbar): Add clearAll.  Add tag argument to
addDisplayItemWithImage.
(EmacsSavePanel, EmacsOpenPanel): Remove getFilename and getDirectory.

* src/nsterm.m: Include src/process.h if NS_IMPL_GNUSTEP.
(ns_menu_bar_is_hidden, menu_will_open_state): Define only if
NS_IMPL_COCOA.
(x_set_cursor_type): Remove declaration.
(ns_update_begin): Only use r and bp if NS_IMPL_COCOA.
(ns_update_end, ns_focus, ns_unfocus): Remove GNUStep specific code.
(x_set_window_size): Remove 3 pixels from toolbar if NS_IMPL_GNUSTEP.
(ns_get_color): Use F suffix on float.
(ns_color_to_lisp, ns_query_color): Use EmacsCGFloat.
(ns_get_rgb_color): Remove.
(x_set_frame_alpha): Move view inside NS_IMPL_COCOA.
(note_mouse_movement): x and y are CGFloat.
(ns_draw_fringe_bitmap): Remove unused rowY.
Change #if to COCOA && >= 10_6.
(ns_draw_window_cursor): Remove unused overspill.
(ns_draw_underwave): width and x are EamcsCGFloat.
(ns_draw_box): thickness is CGFloat.
(ns_dumpglyphs_image): Change #if to COCOA && >= 10_6.
(ns_send_appdefined): When NS_IMPL_GNUSTEP, redirect to main thread
if not in main thread.
(ns_get_pending_menu_title, ns_check_menu_open)
(ns_check_pending_open_menu): Put inside #if COCOA && >= 10_5.
(ns_term_init): Call catch_child_signal if NS_IMPL_GNUSTEP && SIGCHLD.
(sendFromMainThread:): New method.
(changeFont:): size is CGFloat.
(keyDown:): Check for Delete when NS_IMPL_GNUSTEP.
Disable warning about permanent text.
(characterIndexForPoint:): Adjust return type depending on GNUStep
version.
(mouseDown:): delta is CGFloat.
(updateFrameSize): Remove unised variable f.
(initFrameFromEmacs): Move toggleButton inside NS_IMPL_COCOA.
Cast float to EmacsCGFloat.
(windowWillUseStandardFrame:defaultFrame:): Set maximized_height
also to -1 when restoring.
(windowDidExitFullScreen:): Put call to updateCollectionBehaviour
inside NS_IMPL_COCOA.
(toggleFullScreen:): Put call to toggleFullScreen inside
NS_IMPL_COCOA.  Cast float to EmacsCGFloat.
(setPosition:portion:whole:): por is CGFloat.
(getMouseMotionPart:window:x:y:): Add F suffix to float.
(mouseDown:): Use CGFloat.
(mouseDragged:): Remove unised variable edge.
(EmacsDocument): Implement for NS_IMPL_GNUSTEP.

* src/process.c (catch_child_signal): New function.
(init_process_emacs): Call it.

* src/process.h (catch_child_signal): Declare.

Fixes: debbugs:14375

Avoid redundant calls to strlen.

(nsfont_draw): Remove disabling of LCD smoothing.
(ns_glyph_metrics): Add LCD_SMOOTHING_MARGIN to bearings to fix
Bug#11484 with LCD smooting on.

Remove check for fkeys count > zero, block/unblock fixes the real bug.
(nsfont_list_family): Add block/unblock_input calls.
(nsfont_open): Move block_input earlier.  Add unblock_input before early
return.
(nsfont_draw): Add block/unblock_input calls.

(ns_descriptor_to_entity): Restore Qcondensed, Qexpanded setting.
(syms_of_nsfont): Defsym Qcondensed, Qexpanded.

been removed, so remove them here also.

for screen font.
(nsfont_draw): Turn off LCD-smoothing.

Fixes: debbugs:11484

* nsfont.m (Vfonts_in_cache): Remove, not needed as font.c handles
caching.
(nsfont_open): Remove setting of Vfonts_in_cache.
(syms_of_nsfont): Remove initialization of Vfonts_in_cache

* nsfont.m (Vfonts_in_cache): New variable.
(nsfont_open): Use unsignedLongLongValue for cache in case wide ints
are used.  Add cached fonts to Vfonts_in_cache.
(syms_of_nsfont): Initialize and staticpro Vfonts_in_cache.

* nt/inc/ms-w32.h (emacs_raise): New macro.
* src/alloc.c (die):
* src/sysdep.c (emacs_abort) [HAVE_NTGUI]:
Avoid recursive loop if there's a fatal error in the function itself.
* src/atimer.c (pending_atimers):
* src/blockinput.h: Don't include "atimer.h"; no longer needed.
(interrupt_input_pending): Remove.  All uses removed.
pending_signals now counts both atimers and ordinary interrupts.
This is less racy than having three separate pending-signal flags.
(block_input, unblock_input, totally_unblock_input, unblock_input_to)
(input_blocked_p):
Rename from their upper-case counterparts BLOCK_INPUT,
UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT, UNBLOCK_INPUT_TO,
INPUT_BLOCKED_P, and turn into functions.  All uses changed.
This makes it easier to access volatile variables more accurately.
(BLOCK_INPUT_RESIGNAL): Remove.  All uses replaced by unblock_input ().
(input_blocked_p): Prefer this to 'interrupt_input_blocked', as
that's more reliable if the code is buggy and sets
interrupt_input_blocked to a negative value.  All uses changed.
* src/atimer.c (deliver_alarm_signal):
Remove.  No need to deliver this to the parent; any thread can
handle this signal now.  All uses replaced by underlying handler.
* src/atimer.c (turn_on_atimers):
* src/dispnew.c (handle_window_change_signal):
* src/emacs.c (handle_danger_signal):
* src/keyboard.c (kbd_buffer_get_event):
Don't reestablish signal handler; not needed with sigaction.
* src/blockinput.h (UNBLOCK_INPUT_TO, TOTALLY_UNBLOCK_INPUT)
(UNBLOCK_INPUT_TO):
Rework to avoid unnecessary accesses to volatile variables.
(UNBLOCK_INPUT_TO): Now a function.
(totally_unblock_input, unblock_input): New decls.
* src/data.c (handle_arith_signal, deliver_arith_signal): Move to sysdep.c
(init_data): Remove.  Necessary stuff now done in init_signal.
* src/emacs.c, src/xdisp.c: Include "atimer.h", since we invoke atimer functions.
* src/emacs.c (handle_fatal_signal, deliver_fatal_signal): Move to sysdep.c.
(fatal_error_code): Remove; no longer needed.
(terminate_due_to_signal): Rename from fatal_error_backtrace, since
it doesn't always backtrace.  All uses changed.  No need to reset
signal to default, since sigaction and/or die does that for us now.
Use emacs_raise (FOO), not kill (getpid (), FOO).
(main): Check more-accurately whether we're dumping.
Move fatal-error setup to sysdep.c
* src/floatfns.c: Do not include "syssignal.h"; no longer needed.
* src/gtkutil.c (xg_get_file_name, xg_get_font):
Remove no-longer-needed signal-mask manipulation.
* src/keyboard.c, src/process.c (POLL_FOR_INPUT):
Don't depend on USE_ASYNC_EVENTS, a symbol that is never defined.
* src/keyboard.c (read_avail_input): Remove.
All uses replaced by gobble_input.
(Ftop_level): Use TOTALLY_UNBLOCK_INPUT rather than open code.
(kbd_buffer_store_event_hold, gobble_input):
(record_asynch_buffer_change) [USABLE_SIGIO]:
(store_user_signal_events):
No need to mess with signal mask.
(gobble_input): If blocking input and there are terminals, simply
set pending_signals to 1 and return.  All hooks changed to not
worry about whether input is blocked.
(process_pending_signals): Clear pending_signals before processing
them, in case a signal comes in while we're processing.
By convention callers now test pending_signals before calling us.
(UNBLOCK_INPUT_TO, unblock_input, totally_unblock_input):
New functions, to support changes to blockinput.h.
(handle_input_available_signal): Now extern.
(reinvoke_input_signal): Remove.  All uses replaced by
handle_async_input.
(quit_count): Now volatile, since a signal handler uses it.
(handle_interrupt): Now takes bool IN_SIGNAL_HANDLER as arg.  All
callers changed.  Block SIGINT only if not already blocked.
Clear sigmask reliably, even if Fsignal returns, which it can.
Omit unnecessary accesses to volatile var.
(quit_throw_to_read_char): No need to restore sigmask.
* src/keyboard.c (gobble_input, handle_user_signal):
* src/process.c (wait_reading_process_output):
Call signal-handling code rather than killing ourselves.
* src/lisp.h: Include <float.h>, for...
(IEEE_FLOATING_POINT): New macro, moved here to avoid duplication.
(pending_signals): Now volatile.
(syms_of_data): Now const if IEEE floating point.
(handle_input_available_signal) [USABLE_SIGIO]:
(terminate_due_to_signal, record_child_status_change): New decls.
* src/process.c (create_process): Avoid disaster if memory is exhausted
while we're processing a vfork, by tightening the critical section
around the vfork.
(send_process_frame, process_sent_to, handle_pipe_signal)
(deliver_pipe_signal): Remove.  No longer needed, as Emacs now
ignores SIGPIPE.
(send_process): No need for setjmp/longjmp any more, since the
SIGPIPE stuff is now gone.  Instead, report an error if errno
is EPIPE.
(record_child_status_change): Now extern.  PID and W are now args.
Return void, not bool.  All callers changed.
* src/sysdep.c (wait_debugging) [(BSD_SYSTEM || HPUX) && !defined (__GNU__)]:
Remove.  All uses removed.  This bug should be fixed now in a
different way.
(wait_for_termination_1): Use waitpid rather than sigsuspend,
and record the child status change directly.  This avoids the
need to futz with the signal mask.
(process_fatal_action): Move here from emacs.c.
(emacs_sigaction_flags): New function, containing
much of what used to be in emacs_sigaction_init.
(emacs_sigaction_init): Use it.  Block nonfatal system signals that are
caught by emacs, to make races less likely.
(deliver_process_signal): Rename from handle_on_main_thread.
All uses changed.
(BACKTRACE_LIMIT_MAX): Now at top level.
(thread_backtrace_buffer, threadback_backtrace_pointers):
New static vars.
(deliver_thread_signal, deliver_fatal_thread_signal):
New functions, for more-accurate delivery of thread-specific signals.
(handle_fatal_signal, deliver_fatal_signal): Move here from emacs.c.
(deliver_arith_signal): Handle in this thread, not
in the main thread, since it's triggered by this thread.
(maybe_fatal_sig): New function.
(init_signals): New arg DUMPING so that we can be more accurate
about whether we're dumping.  Caller changed.
Treat thread-specific signals differently from process-general signals.
Block all signals while handling fatal error; that's safer.
xsignal from SIGFPE only on non-IEEE hosts, treating it as fatal
on IEEE hosts.
When batch, ignore SIGHUP, SIGINT, SIGTERM if they were already ignored.
Ignore SIGPIPE unless batch.
(emacs_backtrace): Output backtrace for the appropriate thread,
which is not necessarily the main thread.
* src/syssignal.h: Include <stdbool.h>.
(emacs_raise): New macro.
* src/xterm.c (x_connection_signal): Remove; no longer needed
now that we use sigaction.
(x_connection_closed): No need to mess with sigmask now.
(x_initialize): No need to reset SIGPIPE handler here, since
init_signals does this for us now.

Fixes: debbugs:12471

* configure.ac (HAVE__SETJMP, HAVE_SIGSETJMP): New symbols.
(_setjmp, _longjmp): Remove.
* src/lisp.h: Include <setjmp.h> here, since we use its symbols here.
All instances of '#include <setjmp.h>' removed, if the
only reason for the instance was because "lisp.h" was included.
(sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols.
Unless otherwise specified, replace all uses of jmp_buf, _setjmp,
and _longjmp with the new symbols.  Emacs already uses _setjmp if
available, so this change affects only POSIXish hosts that have
sigsetjmp but not _setjmp, such as some versions of Solaris and
Unixware.  (Also, POSIX-2008 marks _setjmp as obsolescent.)
* src/image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros.
(png_load_body) [HAVE_PNG]:
(PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]:
(PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]:
Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp,
since PNG requires jmp_buf.  This is the only exception to the
general rule that we now use sys_setjmp and sys_longjmp.
This exception is OK since this code does not change the signal
mask or longjmp out of a signal handler.

Fixes: debbugs:12446

* font.c (font_intern_prop, font_style_to_value)
(font_style_symbolic, font_parse_xlfd, font_parse_fcname)
(generate_otf_features, font_check_otf_features, font_check_otf)
(font_match_p, font_list_entities, font_at):
* fontset.c (fontset_id_valid_p, reorder_font_vector
(fontset_find_font, Fset_fontset_font)
(face_suitable_for_char_p) [0]:
* ftfont.c (fc_initialized, ftfont_get_open_type_spec)
(ftfont_open, ftfont_text_extents, ftfont_check_otf):
(m17n_flt_initialized, ftfont_shape_by_flt):
* ftxfont.c (ftxfont_draw_bitmap, ftxfont_draw):
* nsfont.m (nsfont_draw):
* w32font.c (w32font_draw):
* w32term.c (x_draw_glyphless_glyph_string_foreground):
Use bool for booleans.
* font.h: Adjust to above API changes.
(struct font, struct font_driver, struct font_driver_list):
Use bool for booleans.
(struct font): Remove useless member encoding_type.
All users removed.
* fontset.c, xftfont.c: Omit unnecessary static decls.

Do not try to redefine the 'abort' function.  Instead, redo
the code so that it calls 'emacs_abort' rather than 'abort'.
This removes the need for the NO_ABORT configure-time macro
and makes it easier to change the abort code to do a backtrace.
* configure.ac (NO_ABRT): Remove.
* admin/CPP-DEFINES (NO_ABORT): Remove.
* nt/inc/ms-w32.h (w32_abort) [HAVE_NTGUI]: Remove.
* src/.gdbinit: Just stop at emacs_abort, not at w32_abort or abort.
* src/emacs.c (abort) [!DOS_NT && !NO_ABORT]:
Remove; sysdep.c's emacs_abort now takes its place.
* src/lisp.h (emacs_abort): New decl.  All calls from Emacs code to
'abort' changed to use 'emacs_abort'.
* src/msdos.c (dos_abort) [defined abort]: Remove; not used.
(abort) [!defined abort]: Rename to ...
(emacs_abort): ... new name.
* src/sysdep.c (emacs_abort) [!HAVE_NTGUI]: New function, taking
the place of the old 'abort' in emacs.c.
* src/w32.c, src/w32fns.c (abort): Do not #undef.
* src/w32.c (emacs_abort): Rename from w32_abort.

ascii_printable is initialized with a null-terminated character
array.  Otherwise, it can contain undesired extra characters.

to an allocated instance of NSString, not to the class itself.

* src/nsfont.m (nsfont_open): Similar to the Xft backend, set
min_width to space_width and average_width to the average over
printable ASCII characters.
(ns_char_width): Code cleanup.
(ns_ascii_average_width): New utility function.