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2013-02-01  Dmitry Antipov  <dmantipov@yandex.ru>

	* window.h (struct window): Convert base_line_number, base_line_pos
	and column_number_displayed members from Lisp_Object to ptrdiff_t.
	Convert region_showing member from Lisp_Object to bitfield.
	Remove sequence_number member.  Adjust comments.
	* window.c (sequence_number): Remove.
	(make_window): Initialize column_number_displayed.
	* print.c (print_object): Follow the printed representation of
	frames and print window pointer to distinguish between windows.
	(adjust_window_count): Invalidate base_line_pos.  Adjust comment.
	* xdisp.c (wset_base_line_number, wset_base_line_pos)
	(wset_column_number_displayed, wset_region_showing): Remove.
	(window_buffer_changed, mode_line_update_needed, redisplay_internal)
	(try_scrolling, try_cursor_movement, redisplay_window)
	(try_window_reusing_current_matrix, try_window_id, display_line)
	(display_mode_lines, decode_mode_spec): Adjust users.
	* .gdbinit (pwinx): Do not print sequence_number.

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2013-02-01  Paul Eggert  <eggert@cs.ucla.edu>

	Use fdopendir, fstatat and readlinkat, for efficiency (Bug#13539).
	* conf_post.h (GNULIB_SUPPORT_ONLY_AT_FDCWD): Remove.
	* dired.c: Include <fcntl.h>.
	(open_directory): New function, which uses open and fdopendir
	rather than opendir.  DOS_NT platforms still use opendir, though.
	(directory_files_internal, file_name_completion): Use it.
	(file_attributes): New function, with most of the old Ffile_attributes.
	(directory_files_internal, Ffile_attributes): Use it.
	(file_attributes, file_name_completion_stat): First arg is now fd,
	not dir name.  All uses changed.  Use fstatat rather than lstat +
	stat.
	(file_attributes): Use emacs_readlinkat rather than Ffile_symlink_p.
	* fileio.c: Include <allocator.h>, <careadlinkat.h>.
	(emacs_readlinkat): New function, with much of the old
	Ffile_symlink_p, but with an fd argument for speed.
	It uses readlinkat rather than careadlinkatcwd, so that it
	need not assume the working directory.
	(Ffile_symlink_p): Use it.
	* filelock.c (current_lock_owner): Use emacs_readlinkat
	rather than emacs_readlink.
	* lisp.h (emacs_readlinkat): New decl.
	(READLINK_BUFSIZE, emacs_readlink): Remove.
	* sysdep.c: Do not include <allocator.h>, <careadlinkat.h>.
	(emacs_norealloc_allocator, emacs_readlink): Remove.
	This stuff is moved to fileio.c.
	* w32.c (fstatat, readlinkat): New functions.
	(careadlinkat): Don't check that fd == AT_FDCWD.
	(careadlinkatcwd): Remove; no longer needed.

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2013-01-31  Glenn Morris  <rgm@gnu.org>

	* fileio.c (choose_write_coding_system): Make it callable from Lisp.
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	(Fwrite_region): Update for new choose_write_coding_system args.
	Move the last piece of choose_write_coding_system here.  (Bug#13522)
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	(syms_of_fileio): Add choose-write-coding-system.

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2013-01-30  Eli Zaretskii  <eliz@gnu.org>
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	* w32.c (sys_open): Zero out the flags for the new file descriptor.
	(sys_close): Zero out the flags for the file descriptor before
	closing it.  (Bug#13546)

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	* w32.c (parse_root, get_volume_info, readdir, read_unc_volume)
	(logon_network_drive, stat_worker, symlink, chase_symlinks): Use
	CharNextExA and CharPrevExA to iterate over file names encoded in
	DBCS.  (Bug#13553)

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	* w32.c (w32_get_long_filename, init_environment, readlink):
	Support file names encoded in DBCS codepages.
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	(readlink): Use the current file-name-coding-system, not the ANSI
	codepage, to decode and handle targets of symlinks.
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2013-01-28  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (opendir): Now accepts a 'const char *'.

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2013-01-28  Dmitry Antipov  <dmantipov@yandex.ru>

	Remove obsolete redisplay code.  See the discussion at
	http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00576.html.
	* dispnew.c (preemption_period, preemption_next_check): Remove.
	(Vredisplay_preemption_period): Likewise.
	(update_frame, update_single_window, update_window, update_frame_1):
	Adjust users.  Always assume that PERIODIC_PREEMPTION_CHECKING is not
	used, following the 2012-06-22 change.

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2013-01-25  Eli Zaretskii  <eliz@gnu.org>

	* w32notify.c (Fw32notify_add_watch): Doc fix.  (Bug#13540)

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2013-01-25  Dmitry Antipov  <dmantipov@yandex.ru>

	* font.c (num_fonts): Remove the leftover from old
	debugging code.  Adjust comment style here and there.
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	* insdel.c (insert_1): Remove.
	* lisp.h (insert_1): Remove prototype.
	* xdisp.c (message_dolog): Adjust users to call insert_1_both.
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2013-01-25  Eli Zaretskii  <eliz@gnu.org>
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	* w32.c (max_filename_mbslen): New function.
	(normalize_filename, readdir): Use it to detect locales where ANSI
	encoding of file names uses a double-byte character set (DBCS).
	If a DBCS encoding is used, advance by characters using
	CharNextExA, instead of incrementing a 'char *' pointer.  Use
	_mbslwr instead of _strlwr.  (Bug#13515)

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	* w32heap.c (allocate_heap) [!_WIN64]: Decrease the initial
	request of memory reservation to 1.7GB.  (Bug#13065)

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2013-01-25  Andreas Schwab  <schwab@linux-m68k.org>
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	* coding.c (detect_coding_iso_2022): Move back mis-reordered code
	at check_extra_latin label.  (Bug#13505)

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2013-01-24  Dmitry Antipov  <dmantipov@yandex.ru>

	* nsfont.m (ns_escape_name, ns_unescape_name, ns_registry_to_script):
	Avoid redundant calls to strlen.

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2013-01-24  Dmitry Antipov  <dmantipov@yandex.ru>

	Drop async_visible and async_iconified fields of struct frame.
	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.
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	(handle_one_xevent): Save visible state to generate ICONIFY_EVENT
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	properly.
	* nsterm.m: Ditto.
	(windowDidDeminiaturize): Generate DEICONIFY_EVENT.

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2013-01-24  Dmitry Antipov  <dmantipov@yandex.ru>

	* insdel.c (prepare_to_modify_buffer): Revert last change as suggested
	in http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00555.html.

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2013-01-23  Stefan Monnier  <monnier@iro.umontreal.ca>

	* xdisp.c (message2, message2_nolog): Remove functions.
	(message3, message3_nolog): Extract nbytes and multibyteness directly
	from the string.  Change all callers.
	(message3_nolog): Don't set message_enable_multibyte since set_message
	will reset it anyway.
	(message1, message1_nolog): Use message3.
	(vmessage): Use a stack allocated buffer rather than f->message_buf.
	(with_echo_area_buffer): Remove last two arguments.  Update all callers.
	(set_message): Drop all but the second arg, which has to be a string.
	(set_message_1): Simplify now that we know that a1 is NULL and the
	second arg is a string.
	* frame.h (struct frame): Remove `message_buf' field.
	Use glyphs_initialized_p instead.
	(FRAME_MESSAGE_BUF): Remove macro.
	* w16select.c (Fw16_set_clipboard_data): Prefer message3 to message2.
	* lisp.h (message2, message2_nolog): Remove declarations.
	(message3, message3_nolog): Update declarations.
	* keyboard.c (read_char_minibuf_menu_text)
	(read_char_minibuf_menu_width): Remove vars.
	(read_char_minibuf_menu_prompt): Rewrite the menu's construction so as
	to correctly handle multibyte strings.
	* frame.c (delete_frame): Don't free message_buf any more.
	* editfns.c (message_text, message_length): Remove vars.
	(Fmessage_box): Don't copy the Lisp string's bytes any longer.
	* fileio.c (auto_save_error): Use message3 instead of message2.
	* dispnew.c (adjust_frame_message_buffer): Remove function.

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2013-01-23  Eli Zaretskii  <eliz@gnu.org>

	* w32term.c (w32fullscreen_hook): Account correctly for the screen
	real estate used for the tool bar and the menu bar.

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2013-01-23  Dmitry Antipov  <dmantipov@yandex.ru>

	* insdel.c (prepare_to_modify_buffer): Force redisplay if
	hidden buffer is prepared to modification (Bug#13164).

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2013-01-22  Dmitry Antipov  <dmantipov@yandex.ru>

	* window.h (struct window): Change window_end_valid member from
	Lisp_Object to a bitfield.  Adjust comments.
	(wset_window_end_valid): Remove.
	* window.c (adjust_window_count): Clear window_end_valid.
	(Fwindow_end): Adjust user.  Remove ancient #if 0 code.
	(Fwindow_line_height, set_window_buffer, Frecenter)
	(Fsplit_window_internal, Fdelete_other_windows_internal)
	(Fset_window_fringes, Fset_window_scroll_bars): Adjust users.
	* dispnew.c (adjust_glyph_matrix, clear_window_matrices): Likewise.
	* xdisp.c (check_window_end, reconsider_clip_changes)
	(redisplay_internal, mark_window_display_accurate_1, redisplay_window)
	(try_window, try_window_reusing_current_matrix, note_mouse_highlight)
	(find_first_unchanged_at_end_row, try_window_id): Likewise.

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2013-01-22  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (mark_window_display_accurate): Simplify the loop
	assuming that the only one of vchild, hchild or buffer window
	slots is non-nil.  Call mark_window_display_accurate_1 for
	the leaf windows only.
	(mark_window_display_accurate_1): Always assume leaf window.
	Adjust comment.

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2013-01-22  Paul Eggert  <eggert@cs.ucla.edu>

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	* emacs.c (Qkill_emacs_hook): Now static.

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	* fileio.c (Finsert_file_contents): Simplify.
	Remove unnecessary assignments and tests.

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2013-01-21  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (acl_set_file): Don't test for errors unless
	set_file_security returns FALSE.  Avoids spurious errors when
	saving files.

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2013-01-21  Dmitry Antipov  <dmantipov@yandex.ru>

	* fileio.c (Finsert_file_contents): Revert code introduced at
	2013-01-18 in favor of the simpler and generally better fix.
	Save stack space by removing 'buffer' and reusing 'read_buf'
	where appropriate.

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2013-01-19  Paul Eggert  <eggert@cs.ucla.edu>

	* lisp.h (eabs): Define unconditionally (Bug#13419).
	The old "#if !defined (eabs)" was an unnecessary revenant of back
	when this macro was called "abs".  Document 'eabs' better.

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2013-01-19  Glenn Morris  <rgm@gnu.org>
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	* fns.c (Frandom): Doc fix.

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2013-01-19  Eli Zaretskii  <eliz@gnu.org>

	* editfns.c (get_pos_property): Use SAFE_ALLOCA_LISP, to avoid
	segfault when there are lots of overlays.

	* buffer.c (sort_overlays): Use SAFE_NALLOCA, to avoid segfault
	when there are lots of overlays.  See
	http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00421.html
	for the details and a way to reproduce.

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2013-01-19  Paul Eggert  <eggert@cs.ucla.edu>

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	* fileio.c: Use O_APPEND to append.
	This corresponds better to the natural interpretation of "append",
	and avoids the need to open the output file twice, or to invoke
	lseek when APPEND is neither nil nor a number.
	This relies on POSIX 1003.1-1988 or later, which is OK nowadays.
	(Fwrite_region): Simplify.  Use O_APPEND instead of opening the
	file possibly twice, and lseeking to its end; this avoids the
	need to lseek on non-regular files.  Do not use O_EXCL and O_TRUNC
	at the same time: the combination is never needed and apparently
	it doesn't work with DOS_NT.

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	Fix size bug on DOS_NT introduced by CIFS workaround (Bug#13149).
	* fileio.c (Fwrite_region): Use O_BINARY in checking code, too.

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	Allow floating-point file offsets.
	Problem reported by Vitalie Spinu in
	<http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00411.html>.
	* fileio.c (emacs_lseek): Remove.
	(file_offset): New function.
	(Finsert_file_contents, Fwrite_region): Use it.

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2013-01-19  Chong Yidong  <cyd@gnu.org>

	* emacs.c (Fkill_emacs): Set waiting_for_input to 0 to avoid
	aborting on Fsignal (Bug#13289).

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2013-01-19  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (acl_set_file): Treat ERROR_ACCESS_DENIED from
	set_file_security as failure due to insufficient privileges.
	Reported by Fabrice Popineau <fabrice.popineau@supelec.fr>.
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	(fstat): Return owner and group like 'stat' and 'lstat' do.
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2013-01-19  Paul Eggert  <eggert@cs.ucla.edu>

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	Work around bug in CIFS and vboxsf file systems (Bug#13149).
	The bug was observed on Ubuntu operating inside a virtual machine,
	editing files mounted via CIFS or vboxsf from the MS Windows 7 host.
	The workaround introduces a race condition on non-buggy hosts,
	but it's an unlikely race and anyway there's a nearly identical
	nearby race that can't be fixed.
	* fileio.c (valid_timestamp_file_system, timestamp_file_system):
	New static vars.
	(Fwrite_region): Test for file system time stamp bug.
	(init_fileio): New function.
	* lisp.h (init_fileio): Declare it.
	* emacs.c (main): Call it.

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	* fileio.c (Finsert_file_contents): Simplify new diagnostic
	and make it more consistent with other stat-failure diagnostics.

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2013-01-18  Dmitry Antipov  <dmantipov@yandex.ru>

	Fix crash when inserting data from non-regular files.  See
	http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00406.html
	for the error description produced by valgrind.
	* fileio.c (read_non_regular): Rename to read_contents.
	Free Lisp_Save_Value object used to pass parameters.
	(read_non_regular_quit): Rename to read_contents_quit.
	(Finsert_file_contents): Redesign internal file reading loop to adjust
	gap and end positions after each read and so help make_gap to work
	properly.  Do not signal an I/O error too early and so do not leave
	not yet decoded characters in a buffer, which was the reason of
	redisplay crash.  Use list2 to build return value.  Adjust comments.

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2013-01-17  Paul Eggert  <eggert@cs.ucla.edu>

	Close a race when statting and reading files (Bug#13149).
	* fileio.c (Finsert_file_contents): Use open+fstat, not stat+open.
	This avoids a race if the file is renamed between stat and open.
	This race is not the problem originally noted in Bug#13149;
	see <http://bugs.gnu.org/13149#73> and later messages in the thread.

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2013-01-17  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (toplevel): Add comment about using Lisp_Save_Value
	objects, related functions and macros.
	(make_save_value): Adjust prototype.
	(make_save_pointer): New prototype.
	(SAFE_NALLOCA): Fix indentation.  Use make_save_pointer.
	(SAFE_ALLOCA_LISP): Adjust make_save_value usage.
	* alloc.c (format_save_value): Rename to make_save_value.
	(make_save_pointer): New function.
	(record_xmalloc): Use make_save_pointer.
	* dired.c, editfns.c, fileio.c, font.c, gtkutil.c, lread.c:
	* nsmenu.m, nsterm.m, xfns.c, xmenu.c, xselect.c, keymap.c:
	Change users of make_save_value to make_save_pointer.
	Likewise for format_save_value and make_save_value.

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2013-01-17  Dmitry Antipov  <dmantipov@yandex.ru>

	* buffer.h (NARROWED, BUF_NARROWED): Drop unused macros.
	(DECODE_POSITION, BUFFER_CHECK_INDIRECTION): Fix indentation.
	* buffer.c (toplevel, syms_of_buffer): Drop old commented-out
	debugging stubs.

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2013-01-15  Paul Eggert  <eggert@cs.ucla.edu>

	* alloc.c (free_save_value): Now static.

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2013-01-15  Dmitry Antipov  <dmantipov@yandex.ru>

	* keymap.c (map_keymap_internal): Use format_save_value.
	(map_keymap_char_table_item): Adjust accordingly.
	* fileio.c (non_regular_fd, non_regular_inserted)
	(non_regular_nbytes): Remove.
	(Finsert_file_contents): Convert trytry to ptrdiff_t.  Use
	format_save_value to pass parameters to read_non_regular.
	(read_non_regular): Use XSAVE_ macros to extract parameters.
	Adjust comment.
	* xmenu.c (xmenu_show) [!USE_X_TOOLKIT && !USE_GTK]: Use
	format_save_value.
	(pop_down_menu) [!USE_X_TOOLKIT && !USE_GTK]: Adjust user.

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2013-01-15  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (XSAVE_POINTER, XSAVE_INTEGER): Change to allow
	extraction from any Lisp_Save_Value slot.  Add type checking.
	* alloc.c, dired.c, editfns.c, fileio.c, ftfont.c, gtkutil.c:
	* keymap.c, lread.c, nsterm.h, nsmenu.c, xfns.c, xmenu.c:
	* xselect.c: All users changed.

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2013-01-15  Dmitry Antipov  <dmantipov@yandex.ru>

	Some convenient bits to deal with Lisp_Save_Values.
	* lisp.h (XSAVE_OBJECT): New macro to extract saved objects.
	(allocate_misc): Remove prototype.
	(format_save_value): New prototype.
	* alloc.c (allocate_misc): Revert back to static.
	(format_save_value): New function to build Lisp_Save_Value
	object with the specified internal structure.
	(make_save_value): Reimplement using format_save_value.
	* editfns.c (save_excursion_save): Use format_save_value.
	(save_excursion_restore): Use XSAVE_OBJECT.

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2013-01-14  Paul Eggert  <eggert@cs.ucla.edu>

	Avoid needless casts with XSAVE_POINTER.
	* alloc.c (mark_object) [GC_MARK_STACK]:
	* dired.c (directory_files_internal_unwind):
	* fileio.c (do_auto_save_unwind):
	* gtkutil.c (pop_down_dialog):
	* keymap.c (map_keymap_char_table_item):
	* lread.c (load_unwind):
	* nsmenu.m (pop_down_menu):
	* print.c (print_object) [GC_MARK_STACK]:
	* xfns.c (clean_up_file_dialog):
	* xmenu.c (cleanup_widget_value_tree):
	Omit casts between XSAVE_POINTER and a pointer type.

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2013-01-14  Dmitry Antipov  <dmantipov@yandex.ru>

	Fix compilation with GC_MARK_STACK == GC_USE_GCPROS_AS_BEFORE.
	* eval.c (eval_sub): Protect `form' from being GCed before its
	car and cdr becomes protected with the backtrace entry.

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2013-01-14  Dmitry Antipov  <dmantipov@yandex.ru>

	Make Lisp_Save_Value more versatile storage for up to four objects.
	* lisp.h (toplevel): Enumeration to describe types of saved objects.
	(struct Lisp_Save_Value): New layout.  Adjust comments.
	(XSAVE_POINTER): New macro.
	(XSAVE_INTEGER): Likewise.
	(allocate_misc): Add prototype.
	(free_misc): Likewise.
	* alloc.c (allocate_misc): Now global.
	(free_misc): Likewise.  Adjust comment.
	(make_save_value): Use new Lisp_Save_Value layout.  Adjust comment.
	(free_save_value): Likewise.
	(mark_object): Likewise.
	* editfns.c (save_excursion_save): Pack everything within
	Lisp_Save_Value and so avoid xmalloc.
	(save_excursion_restore): Adjust to match new layout.  Use free_misc
	because we do not allocate extra memory any more.  Add eassert.
	* print.c (print_object): New code to print Lisp_Save_Value.  Do not
	rely on valid_lisp_object_p if !GC_MARK_STACK.  Adjust comments.
	* dired.c, fileio.c, font.c, ftfont.c, gtkutil.c, keymap.c,
	* lread.c, nsmenu.m, nsterm.h, xfns.c, xmenu.c, xselect.c:
	Use XSAVE_POINTER and XSAVE_INTEGER where appropriate.

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2013-01-13  Jan Djärv  <jan.h.d@swipnet.se>

	* nsfont.m (LCD_SMOOTHING_MARGIN): New define.
	(nsfont_draw): Remove disabling of LCD smoothing.
	(ns_glyph_metrics): Add LCD_SMOOTHING_MARGIN to bearings to fix
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	Bug#11484 with LCD smoothing on.
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	Fix SIGDANGER handlers, for AIX (Bug#13408).
	* sysdep.c.c (handle_danger_signal, deliver_danger_signal) [SIGDANGER]:
	Move handlers here from emacs.c; they were out of place.

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2013-01-11  Jan Djärv  <jan.h.d@swipnet.se>

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

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2012-12-31  Adam Sjøgren  <asjo@koldfront.dk>  (tiny change)
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	* 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.

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	* nsterm.m (keyDown:): Set processingCompose to NO if an emacs key
	event is generated.
	(doCommandBySelector:): Set processingCompose to NO.

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	* nsfont.m (ns_findfonts): Add block/unblock_input calls.
	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.

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2013-01-12  Dmitry Antipov  <dmantipov@yandex.ru>

	* indent.c (Fvertical_motion): Remove now-incorrect GCPROs
	for old_charpos and old_bytepos.

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2013-01-12  Paul Eggert  <eggert@cs.ucla.edu>

	Fix bug with set-time-zone-rule and LOCALTIME_CACHE (Bug#13415).
	* editfns.c (set_time_zone_rule) [LOCALTIME_CACHE]:
	Clear tzvalbuf_in_environ if this workaround is in effect.
	Problem and fix reported by Kazuhiro Ito.

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2013-01-11  Aaron S. Hawley  <Aaron.Hawley@vtinfo.com>

	* insdel.c (Fcombine_after_change_execute, syms_of_insdel): Fix
	 ambiguous doc string cross-reference(s).

	* keyboard.c (Fcommand_execute, syms_of_keyboard): Fix ambiguous
	 doc string cross-reference(s).

	* window.c (Fwindow_point, syms_of_window): Fix ambiguous doc
	 string cross-reference(s).

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2013-01-11  Dmitry Antipov  <dmantipov@yandex.ru>

	Avoid unnecessary byte position calculation for the gap movement.
	Since all users of move_gap do CHAR_TO_BYTE for other purposes
	anyway, all of them should use move_gap_both instead.
	* lisp.h (move_gap): Remove prototype.
	* insdel.c (move_gap): Remove.
	(move_gap_both): Add eassert.
	* editfns.c (Ftranspose_regions): Tweak to use move_gap_both.
	* xml.c (parse_region): Likewise.

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2013-01-11  Paul Eggert  <eggert@cs.ucla.edu>

	emacsclient -t should not suspend Emacs server (Bug#13387)
	* lisp.h, sysdep.c (block_tty_out_signal, unblock_tty_out_signal):
	New functions.
	* term.c (init_tty): Use them instead of rolling our own code.
	* sysdep.c (tcsetpgrp_without_stopping): Likewise.  Here, this
	switches from 'signal' to 'pthread_sigmask', which is safer in
	multithreaded applications.
	* term.c (Fresume_tty): Don't bother dissociating if O_IGNORE_CTTY,
	which has already arranged for that.
	(dissociate_if_controlling_tty): If setsid fails, fall back on TIOCNOTTY.
	This is the main part of the bug fix.

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2013-01-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>  (tiny change)
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	* gtkutil.c (xg_initialize): Add ifdef HAVE_FREETYPE around
	x_last_font_name (Bug#13403).

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2013-01-10  Dmitry Antipov  <dmantipov@yandex.ru>

	Omit buffer_slot_type_mismatch and use generic predicates to enforce
	the type of per-buffer values where appropriate.
	* lisp.h (struct Lisp_Buffer_Objfwd): Rename slottype member to
	predicate, which is how it's really used now.  Adjust comment.
	* buffer.h (buffer_slot_type_mismatch): Remove prototype.
	* buffer.c (buffer_slot_type_mismatch): Remove.
	(DEFVAR_PER_BUFFER, defvar_per_buffer): Rename type argument to
	predicate.  Adjust comment.
	(syms_of_buffer): Use Qsymbolp for major-mode.  Use Qintegerp for
	fill-column, left-margin, tab-width, buffer-saved-size,
	left-margin-width, right-margin-width, left-fringe-width,
	right-fringe-width, scroll-bar-width and buffer-display-count.
	Use Qstringp for default-directory, buffer-file-name,
	buffer-file-truename and buffer-auto-save-file-name.  Use Qfloatp for
	scroll-up-aggressively and scroll-down-aggressively.  Use Qnumberp for
	line-spacing.
	* data.c (store_symval_forwarding): Adjust to call the predicate.

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2013-01-09  Juanma Barranquero  <lekktu@gmail.com>

	* w32.c (get_name_and_id, acl_set_file):
	* w32term.c (w32fullscreen_hook): Remove unused local variables.

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2013-01-09  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (make_gap_1): New prototype.
	* buffer.h (GAP_BYTES_DFL, GAP_BYTES_MIN): New macros for the special
	gap size values.
	* editfns.c (Fbuffer_size): Rename from Fbufsize to fit the common
	naming convention.
	(syms_of_editfns): Adjust defsubr.  Drop commented-out obsolete code.
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	* insdel.c (make_gap_larger): Use GAP_BYTES_DFL.  Adjust comment.
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	(make_gap_smaller): Use GAP_BYTES_MIN.  Adjust comment.
	(make_gap_1): New function to adjust the gap of any buffer.
	* coding.c (coding_alloc_by_making_gap): Use it.
	* buffer.c (compact_buffer): Likewise.  Use BUF_Z_BYTE, BUF_GAP_SIZE,
	GAP_BYTES_DFL and GAP_BYTES_MIN.  Adjust comment.

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2013-01-08  Juri Linkov  <juri@jurta.org>

	* xfaces.c (tty_supports_face_attributes_p): Return 0 for the case
	of (supports :underline (:style wave)).  (Bug#13000)

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2013-01-08  Aaron S. Hawley  <aaron.s.hawley@gmail.com>

	* undo.c (Fprimitive_undo): Move to simple.el.
	(syms_of_undo): Remove declarations for Sprimitive_undo.

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2013-01-08  Stefan Monnier  <monnier@iro.umontreal.ca>

	* keyboard.c (echo_add_key): Rename from echo_add_char.

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2013-01-06  Chong Yidong  <cyd@gnu.org>

	* keyboard.c (echo_add_char): New function, factored out from
	echo_char.  Don't add a space if the previous echo string was
	empty (Bug#13255).
	(echo_char): Use it.
	(read_key_sequence): When echoing mock input, ensure that the
	trailing dash is properly added.

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2013-01-05  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (dump_glyph): Align glyph data better.  Use "pD" instead
	of a non-portable "t" to print ptrdiff_t values.  Allow up to 9
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	digits for buffer positions, before misalignment starts.
	Display "0" for integer "object" field.
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	(dump_glyph_row): Adapt the header line to changes in dump_glyph.
	Display the newline glyph more unambiguously.

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2013-01-04  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>

	* nsterm.m (ns_draw_underwave):
	* w32term.c (w32_draw_underwave):
	* xterm.c (x_draw_underwave): Make underwave look more triangular
	and also degrade gracefully for small fonts.  (Bug#13000)

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	* nsterm.m (ns_draw_text_decoration):
	* w32term.c (x_draw_glyph_string):
	* xterm.c (x_draw_glyph_string): Don't use previous underline
	thickness and position if previous underline type is underwave.

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2013-01-04  Stefan Monnier  <monnier@iro.umontreal.ca>

	* fileio.c (Ffile_acl): Undocument return format.

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2013-01-02  Glenn Morris  <rgm@gnu.org>
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	* keymap.c (Fkey_description): Doc fix.  (Bug#13323)

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2013-01-02  Paul Eggert  <eggert@cs.ucla.edu>

	Simplify via eabs.
	* 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).

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2012-12-31  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (unsetenv): Set up the string passed to _putenv
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	correctly.
	See http://lists.gnu.org/archive/html/emacs-devel/2012-12/msg00863.html
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	for the bug this caused.

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2012-12-30  Paul Eggert  <eggert@cs.ucla.edu>

	* coding.c (Qmac): Now static.

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2012-12-30  Jan Djärv  <jan.h.d@swipnet.se>

	* gtkutil.c (TOOLBAR_TOP_WIDGET): New macro.
	(xg_pack_tool_bar): Use TOOLBAR_TOP_WIDGET, condition out use of
	handlebox_widget.  Set toolbar_in_hbox to false/true, set
	toolbar_is_packed to true.
	(xg_update_tool_bar_sizes): Use widget returned by TOOLBAR_TOP_WIDGET.
	(update_frame_tool_bar): Check toolbar_is_packed for packing.
	Show all on TOOLBAR_TOP_WIDGET.
	(free_frame_tool_bar): Check toolbar_is_packed.  Use widget returned
	by TOOLBAR_TOP_WIDGET.
	(xg_change_toolbar_position): Use widget returned by TOOLBAR_TOP_WIDGET.
	Check toolbar_is_packed.
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	(xg_have_tear_offs, tearoff_remove, tearoff_activate): Condition on
	HAVE_GTK_TEAROFF_MENU_ITEM_NEW.
	(xg_have_tear_offs): When ! HAVE_GTK_TEAROFF_MENU_ITEM_NEW, return
	false.
	(create_menus): Create tearoff only if HAVE_GTK_TEAROFF_MENU_ITEM_NEW.
	(xg_update_menubar): Update title only if
	HAVE_GTK_TEAROFF_MENU_ITEM_NEW.
	(xg_update_submenu): Skip tearoff only if
	HAVE_GTK_TEAROFF_MENU_ITEM_NEW.
	(xg_initialize): Initialize xg_detached_menus only if
	HAVE_GTK_TEAROFF_MENU_ITEM_NEW.
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	* xterm.h (struct x_output): Surround handlebox_widget with
	#ifdef HAVE_GTK_HANDLE_BOX_NEW.  toolbar_is_packed is new,
	toolbar_in_hbox is bool.

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2012-12-30  Andreas Schwab  <schwab@linux-m68k.org>
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	* src/Makefile.in (TEMACS_LDFLAGS2): Remove.
	(LIBS_GNUSTEP): Define.
	(LIBES): Add $(LIBS_GNUSTEP).
	(temacs$(EXEEXT)): Use $(LDFLAGS) instead of $(TEMACS_LDFLAGS2).

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2012-12-30  Eli Zaretskii  <eliz@gnu.org>
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	* xdisp.c (set_cursor_from_row): Don't confuse a truncation or
	continuation glyph on a TTY with an indication of an empty line.
	(Bug#13277)

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2012-12-29  Eli Zaretskii  <eliz@gnu.org>

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	* fileio.c (Fset_file_selinux_context, Fset_file_acl): Return t if
	file's SELinux context or ACLs successfully set, nil otherwise.
	(Bug#13298)
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	(Fcopy_file) [WINDOWSNT]: Improve diagnostics when CopyFile fails.
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	* w32proc.c (reader_thread): Avoid passing NULL handles to
	SetEvent and WaitForSingleObject.

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2012-12-28  Paul Eggert  <eggert@cs.ucla.edu>

	Port EXTERNALLY_VISIBLE to Clang 3.2.
	* conf_post.h (__has_attribute): New macro.
	(EXTERNALLY_VISIBLE): Use it.  This ports to Clang 3.2.

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2012-12-27  Glenn Morris  <rgm@gnu.org>

	* cygw32.c (Fcygwin_convert_file_name_to_windows)
	(Fcygwin_convert_file_name_from_windows): Doc fixes.

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	* fileio.c (file_name_as_directory, directory_file_name):
	Accept an additional argument MULTIBYTE to indicate whether the input C
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	came from a multibyte or a unibyte Lisp string; all callers
	adjusted.  Don't assume the input string is always multibyte.
	(Bug#13262)
	(Ffile_name_directory) [DOS_NT]: Handle unibyte strings correctly:
	don't ENCODE_FILE them, and return a unibyte string if the input
	was unibyte.
	(Fexpand_file_name): Don't mix unibyte with multibyte strings, and
	don't assume the input strings will always be multibyte.  If the
	input strings are multibyte, decode strings obtained from C
	library functions.

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2012-12-26  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (toplevel): Add two notices to the comment about
	defining a new Lisp data type.
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	* print.c (print_object): If Lisp_Save_Value object's pointer
	is the address of a memory area containing Lisp_Objects, try
	to print them.
	* alloc.c (valid_lisp_object_p): Adjust comment.
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2012-12-26  Dmitry Antipov  <dmantipov@yandex.ru>

	* keyboard.c (record_asynch_buffer_change): Initialize an event
	only if it's really needed.
	* frame.h (enum output_method): Remove output_mac member since
	it's a leftover from the deleted code.
	* frame.c (Fframep): Adjust user here ...
	* terminal.c (Fterminal_live_p): ... and here.
	* coding.c (Qmac): Now here because it's only used to denote
	end-of-line encoding type.
	(syms_of_coding): DEFSYM it.
	* frame.h (Qmac): Remove duplicated declaration.

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2012-12-26  Paul Eggert  <eggert@cs.ucla.edu>

	* window.c (select_window_1): Now static, since it's used only here.

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2012-12-25  Eli Zaretskii  <eliz@gnu.org>

	* window.c (window_body_cols): Subtract display margins from the
	window body width on TTYs as well.  See
	http://lists.gnu.org/archive/html/help-gnu-emacs/2012-12/msg00317.html
	for the original report.

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2012-12-25  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (redisplay_window): Remove inner local variable
	because the outer shadowed one has the same meaning.
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	* xterm.h (struct x_output): Remove toolbar_detached member since it's
	set but never used.
	* gtkutil.c (xg_tool_bar_detach_callback, xg_tool_bar_attach_callback)
	(xg_create_tool_bar): Adjust users.
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2012-12-24  Dmitry Antipov  <dmantipov@yandex.ru>

	* buffer.h (BUF_COMPACT): New macro to follow the common style.
	* buffer.c (Fget_buffer_create): Use it to set compact field of
	struct buffer_text to avoid accessing an uninitialized value
	when compact_buffer is called for the first time.
	(compact_buffer): Use convenient BUF_COMPACT and BUF_MODIFF.
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	(Fset_buffer_modified_p): Use buffer_window_count to check
	whether the buffer is displayed in some window.
	* xdisp.c (message_dolog): Likewise.
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	* w32.c (acl_set_file): If setting the file security descriptor
	fails, and the new DACL is identical to the existing one, silently
	return success.  This fixes problems for users backing up their
	own files without having the necessary privileges for setting
	security descriptors.

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	* w32proc.c (reader_thread): Do not index fd_info[] with negative
	values.
	(reader_thread): Exit when cp->status becomes STATUS_READ_ERROR
	after WaitForSingleObject returns normally.  This expedites reader
	thread shutdown when delete_child triggers it.
	(reap_subprocess): More accurate commentary for why we call
	delete_child only when cp->fd is negative.

	* w32.c (sys_close): Do not call delete_child on a subprocess
	whose handle is not yet closed.  Instead, set its file descriptor
	to a negative value, so that reap_subprocess will call
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	delete_child on that subprocess when its SIGCHLD arrives.
	This avoids closing handles used for communications between sys_select
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	and reader_thread, which doesn't give sys_select a chance to
	notice that the process exited and invoke the SIGCHLD handler for
	it.

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2012-12-23  Jan Djärv  <jan.h.d@swipnet.se>

	* nsfns.m (Fns_do_applescript): Run event loop until script has
	been executed (Bug#12969).
	(ns_run_ascript): Chech as_script for nil, set to nil after
	executing script.

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2012-12-22  Martin Rudalics  <rudalics@gmx.at>

	* window.c (Fselect_window): Reword doc-string (Bug#13248).

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2012-12-22  Eli Zaretskii  <eliz@gnu.org>

	* w32term.c (w32fullscreen_hook): New function.
	(w32_create_terminal): Plug it into the terminal's fullscreen_hook.

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2012-12-21  Eli Zaretskii  <eliz@gnu.org>

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	* fileio.c (Finsert_file_contents): Doc fix.

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	* w32proc.c (new_child, delete_child, find_child_pid): For a
	subprocess, consider its slot being in use as long as its process
	handle (procinfo.hProcess) is not NULL.  This avoids reusing the
	slot when a new process is started immediately after killing
	another one, without waiting enough time for the first process to
	be reaped and resources allocated for it be orderly freed.
	(Bug#13086)
	Suggested by Fabrice Popineau <fabrice.popineau@supelec.fr>.

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2012-12-21  Chong Yidong  <cyd@gnu.org>

	* buffer.c (Fset_buffer_major_mode): Doc fix (Bug#13231).

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	* fns.c (Fcompare_strings): Doc fix (Bug#13081).

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	* w32.c (get_name_and_id): Always pass NULL as the first argument
	of lookup_account_sid.  Avoids crashes with UNC file names that
	refer to DFS domains, not to specific machine names.  (Bug#12621)
	Remove now unused argument FNAME; all callers changed.
	(get_file_owner_and_group): Remove now unused argument FNAME; all
	callers changed.

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2012-12-21  Chong Yidong  <cyd@gnu.org>

	* editfns.c (Finsert_char): Since read-char-by-name now signals an
	error for invalid chars, don't check for a nil return value.

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2012-12-20  Dmitry Antipov  <dmantipov@yandex.ru>

	Avoid calls to CHAR_TO_BYTE if byte position is known.
	* editfns.c (make_buffer_string_both): Use move_gap_both.
	(Fbuffer_string): Use make_buffer_string_both.
	* marker.c (buf_charpos_to_bytepos): Convert to eassert.
	Adjust comment.
	(buf_bytepos_to_charpos): Likewise.
	(charpos_to_bytepos): Remove.
	* fileio.c (Finsert_file_contents): Use move_gap_both.
	* search.c (Freplace_match): Likewise.
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	* process.c (process_send_region): Likewise.  Use convenient
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	names for byte positions.
	* lisp.h (charpos_to_bytepos): Remove prototype.
	* indent.c (scan_for_column): Use CHAR_TO_BYTE.
	* insdel.c (move_gap): Likewise.

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2012-12-20  Paul Eggert  <eggert@cs.ucla.edu>

	* xdisp.c (redisplay_internal): Remove now-unused local.

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2012-12-20  Stefan Monnier  <monnier@iro.umontreal.ca>

	* xdisp.c (select_frame_for_redisplay, ensure_selected_frame): Remove.
	(redisplay_internal): Don't bother selecting the frame to get the
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	proper value of frame-local variables (bug#13225).
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2012-12-20  Dmitry Antipov  <dmantipov@yandex.ru>

	* textprop.c (set_text_properties_1): Do not allow NULL interval.
	Rename 4th argument since it may be buffer or string.  Adjust comment.
	* intervals.c (graft_intervals_info_buffer): Find an interval here.

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2012-12-19  Dmitry Antipov  <dmantipov@yandex.ru>

	* coding.c (Fdetect_coding_region): Do not check start and end with
	CHECK_NUMBER_COERCE_MARKER since validate_region does that itself.
	(code_convert_region): Likewise.

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2012-12-18  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (acl_get_file, acl_set_file): Run the file name through
	map_w32_filename, and resolve any symlinks in the file name, like
	Posix platforms do.
	(acl_set_file): Call revert_to_self, if any privileges were
	enabled.

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2012-12-17  Juanma Barranquero  <lekktu@gmail.com>

	* makefile.w32-in ($(BLD)/editfns.$(O), $(BLD)/fileio.$(O))
	($(BLD)/w32.$(O)): Update dependencies.

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2012-12-17  Stefan Monnier  <monnier@iro.umontreal.ca>

	* xdisp.c (select_frame_for_redisplay): Use select_window_1 to
	propagate redisplay's scrolling (if any) to the right window.
	(redisplay_internal): Use ensure_selected_frame.
	(display_mode_lines): Complete last fix.
	* window.c (select_window_1): New func, extracted from select_window.
	(select_window): Use it.
	* window.h (select_window_1): Declare.

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2012-12-17  Eli Zaretskii  <eliz@gnu.org>

	Emulate Posix ACL APIs on MS-Windows.
	* w32.c: Include sddl.h and sys/acl.h.
	(SDDL_REVISION_1): Define if not already defined.
	(g_b_init_get_security_descriptor_dacl)
	(g_b_init_convert_sd_to_sddl, g_b_init_convert_sddl_to_sd)
	(g_b_init_is_valid_security_descriptor)
	(g_b_init_set_file_security): New static flags.
	(globals_of_w32): Initialize them to zero.
	(SetFileSecurity_Name): New string constant.
	(SetFileSecurity_Proc, GetSecurityDescriptorDacl_Proc)
	(ConvertStringSecurityDescriptorToSecurityDescriptor_Proc)
	(ConvertSecurityDescriptorToStringSecurityDescriptor_Proc)
	(IsValidSecurityDescriptor_Proc): New typedefs.
	(get_file_security, get_security_descriptor_owner)
	(get_security_descriptor_group): Set errno to ENOTSUP.
	(set_file_security, get_security_descriptor_dacl)
	(is_valid_security_descriptor, convert_sd_to_sddl)
	(convert_sddl_to_sd, acl_valid, acl_to_text, acl_from_text)
	(acl_free, acl_get_file, acl_set_file): New functions.

	* fileio.c (Fcopy_file) [WINDOWSNT]: Support copying ACLs.

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2012-12-17  Paul Eggert  <eggert@cs.ucla.edu>

	Don't reraise SIGCHLD, as that can now lose (Bug#13192).
	With the 2012-12-03 fix for Bug#12980 in place, an old workaround
	for some of that bug's symptoms can now cause Emacs to abort.
	Remove the workaround.
	* process.c (wait_reading_process_output): Don't reraise SIGCHLD.
	The bug that caused SIGCHLD to get lost has been fixed, and the
	workaround for it can now cause Emacs to abort.

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2012-12-16  Paul Eggert  <eggert@cs.ucla.edu>

	* sysdep.c (emacs_abort): Bump backtrace size to 40.
	Companion to the 2012-09-30 patch.  Suggested by Eli Zaretskii in
	<http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00796.html>.

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2012-12-16  Romain Francoise  <romain@orebokech.com>

	* fileio.c (Ffile_acl, Fset_file_acl): New functions.
	(Fcopy_file): Change last arg to `preserve_extended_attributes'
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	and copy ACL entries of file in addition to SELinux context if set.
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	(syms_of_fileio): Add `file-acl' and `set-file-acl'.

	* Makefile.in (LIBACL_LIBS): New macro.
	(LIBES): Use it.

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2012-12-15  Paul Eggert  <eggert@cs.ucla.edu>

	* fileio.c (internal_delete_file): Use bool for boolean.

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2012-12-15  Eli Zaretskii  <eliz@gnu.org>

	Fix bug #13079 on MS-Windows with temp files not being deleted.
	* w32.h (_child_process): New members input_file and
	pending_deletion.
	(register_child): First argument is now pid_t.
	(record_infile, record_pending_deletion): New prototypes.

	* w32proc.c (new_child): Initialize input_file and
	pending_deletion members of the child.
	(delete_child): Delete the child's temporary input file, if any,
	that is pending deletion.
	(register_child): First argument is now pid_t.
	(record_infile, record_pending_deletion): New functions.
	(reap_subprocess): Fix a typo in DebPrint string.
	(sys_spawnve, sys_kill): Use pid_t for PID arguments.

	* fileio.c (internal_delete_file): Return an int again: non-zero
	if delete-file succeeds, zero otherwise.

	* lisp.h (internal_delete_file): Adjust prototype.

	* callproc.c (Fcall_process): Don't overwrite infile with result
	of DECODE_FILE.
	[WINDOWSNT] If BUFFER is an integer, i.e. we are launching an
	asynchronous subprocess, record the name of the input file name,
	if any.
	(delete_temp_file) [WINDOWSNT]: If internal_delete_file fails to
	delete the file, record it as pending deletion when the subprocess
	exits.

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2012-12-14  Eli Zaretskii  <eliz@gnu.org>

	* editfns.c [HAVE_PWD_H]: Include grp.h.

	* makefile.w32-in ($(BLD)/editfns.$(O)): Add $(NT_INC)/grp.h.

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2012-12-14  Paul Eggert  <eggert@cs.ucla.edu>

	Fix permissions bugs with setgid directories etc. (Bug#13125)
	* dired.c (Ffile_attributes): Return t as the 9th attribute,
	to mark it as a placeholder.  The old value was often wrong.
	The only user of this attribute has been changed to use
	file-ownership-preserved-p instead, with its new group arg.
	* editfns.c (Fgroup_gid, Fgroup_real_gid): New functions.

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2012-12-14  Stefan Monnier  <monnier@iro.umontreal.ca>

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	* xdisp.c (select_frame_for_redisplay, display_mode_lines):
	Keep selected_window and selected_frame in sync.
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2012-12-14  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (stat_worker): If w32_stat_get_owner_group is zero, do not
	try to get accurate owner and group information from NT file
	security APIs.  This is to make most callers of 'stat' and
	'lstat', which don't need that information, much faster.

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	* dired.c (Ffile_attributes) [WINDOWSNT]:
	Set w32_stat_get_owner_group to a non-zero value, to request accurate
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	owner and group information from 'lstat'.

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2012-12-13  Paul Eggert  <eggert@cs.ucla.edu>

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	* fileio.c (Finsert_file_contents): Don't put tail into head area,
	as that confuses set-auto-coding, so insist on the head-read
	returning the full 1024 bytes.  Let lseek compute the tail offset;
	less work for us.  Do not ignore I/O errors when reading the tail.

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	* xdisp.c: Minor style fixes.
	(init_iterator): Hoist assignment out of if-expression.
	(markpos_of_region): Callers now test for sign, not for -1.

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2012-12-13  Dmitry Antipov  <dmantipov@yandex.ru>

	Minor redisplay optimization when the region length is zero.
	* xdisp.c (markpos_of_region): New function.
	(init_iterator): Do not highlight the region of zero length.
	(redisplay_window): Check whether the region is of non-zero length.
	(try_cursor_movement): Allow if the region length is zero.
	(try_window_reusing_current_matrix, try_window_id): Likewise.

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2012-12-13  Eli Zaretskii  <eliz@gnu.org>
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	* search.c (search_buffer): Check the inverse translations of each
	character in pattern when the buffer being searched is unibyte.
	(Bug#13084)

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2012-12-13  Paul Eggert  <eggert@cs.ucla.edu>
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	* fileio.c (Fvisited_file_modtime): Return (-1 ...) for nonexistent
	files, fixing a regression from 24.2.
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	(Fverify_visited_file_modtime): Don't read uninitialized st.st_size.
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2012-12-13  Paul Eggert  <eggert@cs.ucla.edu>

	* fileio.c (Fcopy_file): Make fstat failure as serious as open failure.
	fstat shouldn't fail, and if it does fail copy-file should not proceed.
	Remove unnecessary S_ISLNK test, as (contra the comments) this
	function can't copy symlinks.  Improve quality of error message
	when attempting to copy files that are neither regular files nor
	directories.

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2012-12-12  Dmitry Antipov  <dmantipov@yandex.ru>

	* dispnew.c (set_window_cursor_after_update): Use clip_to_bounds.
	* 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.

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2012-12-12  Daniel Colascione  <dancol@dancol.org>

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	* unexcw.c (fixup_executable): Use posix_fallocate to ensure that
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	the dumped Emacs is not a sparse file, greatly improving Cygwin
	"make bootstrap" performance.

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2012-12-11  Michael Albinus  <michael.albinus@gmx.de>

	* inotify.c (inotify_callback): Generate an Emacs event for every
	incoming inotify event.

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2012-12-11  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (handle_face_prop): Fix logic of computing
	it->start_of_box_run_p.
	(append_space_for_newline): If the glyph row is R2L, reset the
	iterator's end_of_box_run_p flag before prepending the space glyph.
	(extend_face_to_end_of_line): If the glyph row is R2L, reset the
	iterator's start_of_box_run_p flag before prepending the stretch.
	(append_glyph, produce_image_glyph, append_composite_glyph)
	(append_stretch_glyph, append_glyphless_glyph): Reverse the
	left_box_line_p and right_box_line_p flags of the glyph for R2L
	glyph rows.  (Bug#13011)

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2012-12-11  Dmitry Antipov  <dmantipov@yandex.ru>

	* buffer.c (Fset_buffer_multibyte): Do not force redisplay
	if changed buffer is not shown in a window.
	* insdel.c (prepare_to_modify_buffer): Likewise.
	* window.c (replace_buffer_in_windows_safely): Do nothing
	if buffer is not shown in a window.
	(Fforce_window_update): Likewise if string or buffer argument
	is passed.

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2012-12-11  Eli Zaretskii  <eliz@gnu.org>

	* inotify.c (Finotify_add_watch): Rename decoded_file_name to
	encoded_file_name, which is what it is.

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2012-12-11  Dmitry Antipov  <dmantipov@yandex.ru>

	Consistently use marker_position and marker_byte_position.
	* fringe.c (Ffringe_bitmaps_at_pos):
	* indent.c (Fvertical_motion):
	* insdel.c (prepare_to_modify_buffer):
	* keyboard.c (make_lispy_position):
	* window.c (Fwindow_end, Fpos_visible_in_window_p, unshow_buffer)
	(window_scroll_pixel_based, displayed_window_lines)
	(Fset_window_configuration):
	* xdisp.c (message_dolog, with_echo_area_buffer_unwind_data)
	(mark_window_display_accurate_1, redisplay_window, decode_mode_spec):
	Replace direct access to marker fields with calls
	to marker_position and/or marker_byte_position.

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2012-12-11  Juanma Barranquero  <lekktu@gmail.com>

	* makefile.w32-in (SIG2STR_H): New macro.
	(SYSWAIT_H, $(BLD)/emacs.$(O), $(BLD)/process.$(O))
	($(BLD)/w32notify.$(O)): Update dependencies.

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2012-12-10  Daniel Colascione  <dancol@dancol.org>

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	* w32term.c, keyboard.c: Fix build break in cygw32 by omitting
	Windows file notification functionality unless WINDOWSNT.

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	* w32gui.h (hprevinst, lpCmdLine, nCmdShow): Remove unused
	declarations.

	* w32fns.c (cache_system_info): Initialize the global hinst
	variable here so various initialization calls DTRT.

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	* unexw32.c (hprevinst, lpCmdLine, nCmdShow): Remove unused variables.
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	(hinst): Remove unneeded extern declaration.
	(_start): Remove initialization of above variables; remove
	initialization of hinst, as cache_system_info now does that.

	* emacs.c (main): Call cache_system_info early in startup; we
	previously weren't calling it in Cygwin builds.

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	* Makefile.in (ntsource, WINDRES, W32_RES, W#@_RES_LINK):
	Teach the autoconf build system how to compile a Windows resource file
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	and link it to Emacs.

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2012-12-10  Dmitry Antipov  <dmantipov@yandex.ru>

	Per-buffer window counters.
	* buffer.h (struct buffer): New member window_count.
	(buffer_window_count): New function.
	* buffer.c (Fget_buffer_create, Fmake_indirect_buffer):
	Initialize window_count.
	(Fkill_buffer): Verify window_count for the buffer being killed.
	(modify_overlay): Do not force redisplay if buffer is not shown
	in any window.
	(init_buffer_once): Initialize window_count for buffer_defaults
	and buffer_local_symbols.
	* window.h (buffer_shared): Remove declaration.
	(wset_buffer): Convert from inline ...
	* window.c (wset_buffer): ... to an ordinary function.
	(adjust_window_count): New function.
	(make_parent_window): Use it.
	* xdisp.c (buffer_shared): Remove.
	(redisplay_internal, redisplay_window): Adjust users.
	(buffer_shared_and_changed): Use per-buffer window counter.

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2012-12-10  Eli Zaretskii  <eliz@gnu.org>

	Support for filesystem notifications on MS-Windows.
	* w32proc.c (sys_select): If drain_message_queue returns non-zero,
	and this is a TTY frame, signal the caller that keyboard input is
	available.

	* w32xfns.c (drain_message_queue): Now returns an int: an
	indication whether any WM_EMACS_FILENOTIFY messages were found in
	the queue.

	* w32inevt.c (handle_file_notifications): New function.
	(w32_console_read_socket): Call it to process file notifications.

	* w32console.c (initialize_w32_display): Record the main thread ID
	in dwMainThreadId.

	* deps.mk (inotify.o): New dependency list.

	* Makefile.in (SOME_MACHINE_OBJECTS): Add w32notify.o.

	* w32term.h (WM_EMACS_FILENOTIFY): New custom message.
	(WM_EMACS_END): Bump value by 1.
	(notification_buffer_in_use, file_notifications)
	(notifications_size, notifications_desc): Declare.
	(w32_get_watch_object, lispy_file_action, globals_of_w32notify):
	Add prototypes.

	* w32term.c (lispy_file_action, queue_notifications): New functions.
	(syms_of_w32term) <Qadded, Qremoved, Qmodified, Qrenamed_from>
	<Qrenamed_to>: New symbols.
	(w32_read_socket): Handle the WM_EMACS_FILENOTIFY message.

	* w32notify.c: New file, implements file event notifications for
	MS-Windows.

	* w32fns.c (w32_wnd_proc): Handle the WM_EMACS_FILENOTIFY message
	by posting it to the w32_read_socket queue.

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	* termhooks.h (enum event_kind) [HAVE_NTGUI]: Support FILE_NOTIFY_EVENT.
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	* makefile.w32-in (OBJ2): Add $(BLD)/w32notify.$(O).
	(GLOBAL_SOURCES): Add w32notify.c
	($(BLD)/w32notify.$(O)): New set of dependencies.

	* lisp.h (syms_of_w32notify) [WINDOWSNT]: Add prototype.

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	* keyboard.c (kbd_buffer_get_event) [WINDOWSNT]:
	Handle FILE_NOTIFY_EVENT.
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	(syms_of_keyboard) [HAVE_NTGUI] <Qfile_notify>: New symbol.
	(keys_of_keyboard) [WINDOWSNT]: Bind file-notify to
	w32notify-handle-event by default.

	* emacs.c (main) [WINDOWSNT]: Call globals_of_w32notify and
	syms_of_w32notify.

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2012-12-10  Rüdiger Sonderfeld  <ruediger@c-plusplus.de>

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	Support for filesystem notifications on GNU/Linux via inotify.
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	* termhooks.h (enum event_kind) [HAVE_INOTIFY]: Add FILE_NOTIFY_EVENT.
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	* lisp.h (syms_of_inotify) [HAVE_INOTIFY]: Add prototype.

	* keyboard.c (Qfile_inotify) [HAVE_INOTIFY]: New variable.
	(syms_of_keyboard): DEFSYM it.
	(kbd_buffer_get_event) [HAVE_INOTIFY]: Generate FILE_NOTIFY_EVENT.
	(make_lispy_event): Support FILE_NOTIFY_EVENT by generating
	Qfile_inotify events.
	(keys_of_keyboard) [HAVE_INOTIFY]: Bind file-inotify events in
	special-event-map to inotify-handle-event.

	* emacs.c (main) [HAVE_INOTIFY]: Call syms_of_inotify.

	* Makefile.in (base_obj): Add inotify.o.

	* inotify.c: New file.

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2012-12-10  Jan Djärv  <jan.h.d@swipnet.se>
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	* nsterm.m (fd_handler:): FD_ZERO fds (Bug#13103).

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2012-12-10  Fabrice Popineau  <fabrice.popineau@gmail.com>
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	* w32fns.c (cache_system_info): Cast sysinfo_cache.dwPageSize to
	DWORD_PTR, for compatibility with 64-bit builds.

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	* w32.c (_PROCESS_MEMORY_COUNTERS_EX):
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	(GetProcessWorkingSetSize_Proc, get_process_working_set_size)
	(system_process_attributes): Use SIZE_T rather than DWORD, for
	compatibility with 64-bit builds.

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2012-12-10  Christopher Schmidt  <christopher@ch.ristopher.com>
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	* lread.c (Vload_source_file_function): Doc fix (Bug#11647).

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2012-12-10  Eli Zaretskii  <eliz@gnu.org>
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	* indent.c (Fvertical_motion): If a display string will be
	displayed on the left or the right margin, don't consider it as a
	factor in cursor positioning.  (Bug#13108)

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2012-12-10  Martin Rudalics  <rudalics@gmx.at>
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	* editfns.c (Fcompare_buffer_substrings): Reword doc-string.

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2012-12-10  Paul Eggert  <eggert@cs.ucla.edu>

	* fileio.c (Fsubstitute_in_file_name): Use ptrdiff_t, not int,
	for string length.

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2012-12-08  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (unsetenv): Return 0 if the input string is too long.

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2012-12-08  Paul Eggert  <eggert@cs.ucla.edu>

	Use putenv+unsetenv instead of modifying environ directly (Bug#13070).
	* alloc.c (xputenv): New function.
	* dbusbind.c (Fdbus_init_bus):
	* emacs.c (main):
	* xterm.c (x_term_init):
	Use xputenv instead of setenv or putenv, to detect memory exhaustion.
	* 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.
	* emacs.c (dump_tz) [HAVE_TZSET]: Now const.
	* lisp.h (xputenv): New decl.

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2012-12-08  Fabrice Popineau  <fabrice.popineau@gmail.com>

	* w32fns.c (emacs_abort): Don't do arithmetics on void pointers.

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2012-12-08  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (unsetenv, sys_putenv): New functions.

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2012-12-08  Chong Yidong  <cyd@gnu.org>

	* editfns.c (Finsert_char): Make the error message more
	informative (Bug#12992).

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2012-12-08  Paul Eggert  <eggert@cs.ucla.edu>

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	Simplify get_lim_data.
	* vm-limit.c (get_lim_data): Combine RLIMIT_AS and RLIMIT_DATA methods.
	Remove USG and vlimit methods; no longer used these days.
	Add #error catchall just in case.

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	Assume POSIX 1003.1-1988 or later for signal.h (Bug#13026).
	Exceptions: do not assume SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN,
	SIGTTOU, SIGUSR1, SIGUSR2, as Microsoft platforms lack these.
	* process.c [subprocesses]: Include <c-ctype.h>, <sig2str.h>.
	(deleted_pid_list, Fdelete_process, create_process)
	(record_child_status_change, handle_child_signal, deliver_child_signal)
	(init_process_emacs, syms_of_process):
	Assume SIGCHLD is defined.
	(parse_signal): Remove.  All uses removed.
	(abbr_to_signal): New static function.
	(Fsignal_process): Use it to convert signal names to ints.
	* sysdep.c (sys_suspend) [!DOS_NT]: Use kill (0, ...) rather than
	kill (getpgrp (), ...).
	(emacs_sigaction_init): Assume SIGCHLD is defined.
	(init_signals): Assume SIGALRM, SIGCHLD, SIGHUP, SIGKILL,
	SIGPIPE, and SIGQUIT are defined.  Do not worry about SIGCLD any more.
	* syssignal.h (EMACS_KILLPG): Remove.
	All uses replaced by 'kill' with a negative pid.
	(SIGCHLD): Remove definition, as we now assume SIGCHLD.
	* w32proc.c (sys_kill): Support negative pids compatibly with POSIX.

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2012-12-07  Paul Eggert  <eggert@cs.ucla.edu>

	* sysdep.c (get_child_status): Abort on internal error (Bug#13086).
	This will cause a production Emacs to dump core instead of
	infinite-looping.

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2012-12-07  Dmitry Antipov  <dmantipov@yandex.ru>

	* frame.c (make_frame): Do not set window's buffer to t.
	* window.c (Fsplit_window_internal): Likewise.  Previously it was
	used to indicate that the window is being set up.  Now we use
	set_window_buffer for all new windows, so the condition in ...
	(Fset_window_buffer): ... is always true and can be removed.

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2012-12-07  Dmitry Antipov  <dmantipov@yandex.ru>

	Convenient macro to check whether the buffer is hidden.
	* buffer.h (BUFFER_HIDDEN_P): New macro.
	* frame.c (make_frame): Use it.  Adjust comment.
	* buffer.c (candidate_buffer): New function.
	(Fother_buffer, other_buffer_safely): Use it.

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2012-12-06  Eli Zaretskii  <eliz@gnu.org>

	* w32proc.c (waitpid): Avoid busy-waiting when called with WNOHANG
	if the child process is still running.  Instead, exit the wait
	loop and return zero.  (Bug#13086)

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2012-12-06  Dmitry Antipov  <dmantipov@yandex.ru>

	* frame.h (x_char_width, x_char_height): Remove prototypes.
	* w32term.h (x_char_width, x_char_height): Likewise.
	* xfns.c (x_char_width, x_char_height): Remove.
	* w32fns.c (x_char_width, x_char_height): Likewise.
	* nsfns.c (x_char_width, x_char_height): Likewise.
	* frame.c (Fframe_char_width): Use FRAME_COLUMN_WIDTH for
	all window frames.
	(Fframe_char_height): Likewise with FRAME_LINE_HEIGHT.
	* keyboard.c (command_loop_1): Remove prototype.
	(command_loop_2, top_level_1): Add static to match prototype.

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2012-12-06  Paul Eggert  <eggert@cs.ucla.edu>

	Fix a recently-introduced delete-process race condition.
	* callproc.c, process.h (record_kill_process):
	New function, containing part of the old call_process_kill.
	(call_process_kill): Use it.
	This does not change call_process_kill's behavior.
	* process.c (Fdelete_process): Use record_kill_process to fix a
	race condition that could cause Emacs to lose track of a child.

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2012-12-06  Dmitry Antipov  <dmantipov@yandex.ru>

	Avoid code duplication between prev_frame and next_frame.
	* frame.c (candidate_frame): New function.  Add comment.
	(prev_frame, next_frame): Use it.  Adjust comment.

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2012-12-06  Eli Zaretskii  <eliz@gnu.org>
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	* callproc.c (Fcall_process_region) [!HAVE_MKSTEMP]: If mktemp
	fails, signal an error instead of continuing with an empty
	string.  (Bug#13079)
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	Encode expanded temp file pattern before passing it to mkstemp or
	mktemp.
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	* fileio.c (file_name_as_directory, directory_file_name) [DOS_NT]:
	Encode the file name before passing it to dostounix_filename, in
	case it will downcase it (under w32-downcase-file-names).
	(Bug#12933)

Paul Eggert's avatar
Paul Eggert committed
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2012-12-05  Paul Eggert  <eggert@cs.ucla.edu>

	Minor call-process cleanups.
	* callproc.c (Fcall_process): Do record-unwind-protect on MSDOS
	at the same time as other platforms, to simplify analysis.
	No need for fd0_volatile since we have synch_process_fd.
	Avoid needless emacs_close; arg is always negative.

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2012-12-04  Andreas Schwab  <schwab@linux-m68k.org>

	* callproc.c (Fcall_process): Fix specpdl nesting for asynchronous
	processes.

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2012-12-04  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (Mouse_HLInfo): Remove set-but-unused mouse_face_image_state
	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.

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2012-12-03  Paul Eggert  <eggert@cs.ucla.edu>

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	Don't let call-process be a zombie factory (Bug#12980).
	Fixing this bug required some cleanup of the signal-handling code.
	As a side effect, this change also fixes a longstanding rare race
	condition whereby Emacs could mistakenly kill unrelated processes,
	and it fixes a bug where a second C-g does not kill a recalcitrant
	synchronous process in GNU/Linux and similar platforms.
	The patch should also fix the last vestiges of Bug#9488,
	a bug which has mostly been fixed on the trunk by other changes.
	* callproc.c, process.h (synch_process_alive, synch_process_death)
	(synch_process_termsig, sync_process_retcode):
	Remove.  All uses removed, to simplify analysis and so that
	less consing is done inside critical sections.
	* callproc.c (call_process_exited): Remove.  All uses replaced
	with !synch_process_pid.
	* callproc.c (synch_process_pid, synch_process_fd): New static vars.
	These take the role of what used to be in unwind-protect arg.
	All uses changed.
	(block_child_signal, unblock_child_signal):
	New functions, to avoid races that could kill innocent-victim processes.
	(call_process_kill, call_process_cleanup, Fcall_process): Use them.
	(call_process_kill): Record killed processes as deleted, so that
	zombies do not clutter up the system.  Do this inside a critical
	section, to avoid a race that would allow the clutter.
	(call_process_cleanup): Fix code so that the second C-g works again
	on common platforms such as GNU/Linux.
	(Fcall_process): Create the child process in a critical section,
	to fix a race condition.  If creating an asynchronous process,
	record it as deleted so that zombies do not clutter up the system.
	Do unwind-protect for WINDOWSNT too, as that's simpler in the
	light of these changes.  Omit unnecessary call to emacs_close
	before failure, as the unwind-protect code does that.
	* callproc.c (call_process_cleanup):
	* w32proc.c (waitpid): Simplify now that synch_process_alive is gone.
	* process.c (record_deleted_pid): New function, containing
	code refactored out of Fdelete_process.
	(Fdelete_process): Use it.
	(process_status_retrieved): Remove.  All callers changed to use
	child_status_change.
	(record_child_status_change): Remove, folding its contents into ...
	(handle_child_signal): ... this signal handler.  Now, this
	function is purely a handler for SIGCHLD, and is not called after
	a synchronous waitpid returns; the synchronous code is moved to
	wait_for_termination.  There is no need to worry about reaping
	more than one child now.
	* sysdep.c (get_child_status, child_status_changed): New functions.
	(wait_for_termination): Now takes int * status and bool
	interruptible arguments, too.  Do not record child status change;
	that's now the caller's responsibility.  All callers changed.
	Reimplement in terms of get_child_status.
	(wait_for_termination_1, interruptible_wait_for_termination):
	Remove.  All callers changed to use wait_for_termination.
	* syswait.h: Include <stdbool.h>, for bool.
	(record_child_status_change, interruptible_wait_for_termination):
	Remove decls.
	(record_deleted_pid, child_status_changed): New decls.
	(wait_for_termination): Adjust to API changes noted above.

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	* bytecode.c, lisp.h (Qbytecode): Remove.
	No longer needed after 2012-11-20 interactive-p changes.

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2012-12-03  Eli Zaretskii  <eliz@gnu.org>

	* xdisp.c (redisplay_window): If the cursor is visible, but inside
	the scroll margin, move point outside the margin.  (Bug#13055)

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2012-12-03  Jan Djärv  <jan.h.d@swipnet.se>

	* gtkutil.c (my_log_handler): New function.
	(xg_set_geometry): Set log handler to my_log_handler (Bug#11177).

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2012-12-03  Dmitry Antipov  <dmantipov@yandex.ru>

	* lisp.h (modify_region): Rename to...
	(modify_region_1): ...new prototype.
	* textprop.c (modify_region): Now static.  Adjust users.
	* insdel.c (modify_region): Rename to...
	(modify_region_1): ...new function to work with current buffer.
	Adjust comment and users.  Use true and false for booleans.

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2012-12-03  Dmitry Antipov  <dmantipov@yandex.ru>

	* alloc.c (free_save_value): New function.
	(safe_alloca_unwind): Use it.
	* lisp.h (free_save_value): New prototype.
	* editfns.c (save_excursion_save): Use Lisp_Misc_Save_Value.
	Add comment.
	(save_excursion_restore): Adjust to match saved data structure.
	Use free_save_value to offload some work from GC.  Drop obsolete
	#if 0 code.

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2012-12-03  Chong Yidong  <cyd@gnu.org>
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	* fileio.c (Vauto_save_list_file_name): Doc fix.

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2012-12-03  Fabrice Popineau  <fabrice.popineau@gmail.com>
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	* w32fns.c: Remove prototype of atof.
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	(syspage_mask): Make it DWORD_PTR, for compatibility with 64-bit
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	builds.
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	(file_dialog_callback): Make it UINT_PTR.
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	* w32common.h (syspage_mask): Declare DWORD_PTR, for compatibility
	with 64-bit builds.

	* w32.c (FILE_DEVICE_FILE_SYSTEM, METHOD_BUFFERED)
	(FILE_ANY_ACCESS, CTL_CODE) [_MSC_VER]: Define only if not already
	defined.