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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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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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2012-12-23  Eli Zaretskii  <eliz@gnu.org>

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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
	delete_child on that subprocess when its SIGCHLD arrives.  This
	avoids closing handles used for communications between sys_select
	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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2012-12-21  Eli Zaretskii  <eliz@gnu.org>
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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
	proper value of frame-local variables.

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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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Paul Eggert committed
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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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	* 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.

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	* data.c (Fboundp, Fsymbol_value): Doc fix re lexical-binding.
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2012-12-02  Paul Eggert  <eggert@cs.ucla.edu>

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	Fix xpalloc confusion after memory is exhausted.
	* alloc.c (xpalloc): Comment fix.
	* charset.c (Fdefine_charset_internal): If xpalloc exhausts memory
	and signals an error, do not clear charset_table_size, as
	charset_table is still valid.
	* doprnt.c (evxprintf): Clear *BUF after freeing it.

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	Use execve to avoid need to munge environ (Bug#13054).
	* callproc.c (Fcall_process):
	* process.c (create_process):
	Don't save and restore environ;	no longer needed.
	* callproc.c (child_setup):
	Use execve, not execvp, to preserve environ.

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2012-12-01  Paul Eggert  <eggert@cs.ucla.edu>

	* xterm.c (x_draw_image_relief): Remove unused locals (Bug#10500).

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2012-12-01  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>

	* xterm.c (x_draw_relief_rect, x_draw_image_relief): Fix relief
	display for sliced images (Bug#10500).

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

Juanma Barranquero's avatar
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2012-11-30  Juanma Barranquero  <lekktu@gmail.com>

	* doc.c (Fdocumentation): Re-add handling of function-documentation,
	accidentally removed in 2012-11-09T04:10:16Z!monnier@iro.umontreal.ca (bug#13034).

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2012-11-29  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (window_outdated): Remove eassert since it hits
	some suspicious corner cases (see Bug#13007 and Bug#13012).
	(mode_line_update_needed): New function.
	(redisplay_internal, redisplay_window): Use it.
	(ensure_selected_frame): New function.
	(redisplay_internal, unwind_redisplay): Use it.
	(redisplay_internal): Move comment about buffer_shared...
	(buffer_shared_and_changed): ...near to its real use.

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2012-11-29  Paul Eggert  <eggert@cs.ucla.edu>

	* callproc.c (Fcall_process): Don't misreport vfork failure.

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2012-11-28  Paul Eggert  <eggert@cs.ucla.edu>

	* callproc.c (Fcall_process): Fix vfork portability problems.
	Do not assume that fd[0], count, filefd, and save_environ survive
	vfork.  Fix bug whereby wrong errno value could be reported for
	pipe failure.  Some minor cleanups, too, as follows.  Move buf and
	bufsize to the context where they're needed.  Change new_argv to
	be of type char **, as this is more convenient and avoids casts.
	(CALLPROC_BUFFER_SIZE_MIN, CALLPROC_BUFFER_SIZE_MAX):
	Now local constants, not macros.

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2012-11-18  Kenichi Handa  <handa@gnu.org>

	* font.c (font_unparse_xlfd): Fix previous change.  Keep "const"
	for the variable "f".

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2012-11-13  Kenichi Handa  <handa@gnu.org>

	* font.c (font_unparse_xlfd): Exclude special characters from the
	generating XLFD name.

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2012-11-27  Paul Eggert  <eggert@cs.ucla.edu>

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	Assume POSIX 1003.1-1988 or later for grp.h, pwd.h.
	* dired.c (stat_uname, stat_gname):
	* fileio.c (Fexpand_file_name): Remove no-longer-needed casts.

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	Assume POSIX 1003.1-1988 or later for errno.h (Bug#12968).
	* dired.c (directory_files_internal, file_name_completion):
	Assume EAGAIN and EINTR are defined.
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	* fileio.c (Fcopy_file): Assume EISDIR is defined.
	* gmalloc.c (ENOMEM, EINVAL): Assume they're defined.
	* gnutls.c (emacs_gnutls_write): Assume EAGAIN is defined.
	* lread.c (readbyte_from_file): Assume EINTR is defined.
	* process.c (wait_reading_process_output, send_process) [subprocesses]:
	Assume EIO and EAGAIN are defined.
	* unexcoff.c (write_segment): Assume EFAULT is defined.

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	* fontset.c (Finternal_char_font): Return nil on non-GUI frames.
	(Bug#11964)

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	* xdisp.c (draw_glyphs): Don't draw in mouse face if mouse
	highlighting on the frame was cleared.  Prevents assertion
	violations when repeatedly clicking on the "Top" link of the
	"bread-crumbs" in Info buffers.

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2012-11-25  Paul Eggert  <eggert@cs.ucla.edu>

	* sysdep.c (sys_subshell): Don't assume pid_t fits in int.

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2012-11-24  Ken Brown  <kbrown@cornell.edu>

	* keyboard.c (HAVE_MOUSE):
	* frame.c (HAVE_MOUSE): Remove, and rewrite code as if HAVE_MOUSE
	were always defined.

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	* xdisp.c (set_cursor_from_row): Skip step 2 only if point is not
	between bpos_covered and bpos_max.  This fixes cursor display when
	several display strings follow each other.

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	* .gdbinit (pgx): If the glyph's object is a string, display the
	pointer to string data, rather than the value of the string object
	itself (which barfs under CHECK_LISP_OBJECT_TYPE).

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	* indent.c (Fvertical_motion): If the starting position is covered
	by a display string, return to one position before that, to avoid
	overshooting it inside move_it_to.  (Bug#12930)

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2012-11-23  Dmitry Antipov  <dmantipov@yandex.ru>

	* frame.h (struct frame): Remove display_preempted member
	since all users are dead long ago.
	* nsterm.h (struct x_output): Use the only dummy member.
	* w32menu.c (pending_menu_activation): Remove since not
	really used.
	(set_frame_menubar): Adjust user.
	* w32term.h (struct x_output): Drop outdated #if 0 code.
	(struct w32_output): Use bitfields for explicit_parent,
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	asked_for_visible and menubar_active members.
	Drop unused pending_menu_activation member.
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	* xterm.h (struct x_output): Drop outdated #if 0 code.
	Use bitfields for explicit_parent, asked_for_visible,
	has_been_visible and net_wm_state_hidden_seen members.

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2012-11-23  Eli Zaretskii  <eliz@gnu.org>

	* makefile.w32-in (globals.h, gl-stamp): Use $(SWITCHCHAR) instead
	of a literal "/".  (Bug#12955)
	(gl-stamp): Invoke fc.exe directly, not through cmd.

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2012-11-23  Paul Eggert  <eggert@cs.ucla.edu>

	Assume POSIX 1003.1-1988 or later for dirent.h (Bug#12958).
	* dired.c: Assume HAVE_DIRENT_H.
	(NAMLEN): Remove, replacing with ...
	(dirent_namelen): New function.  All uses changed.  Use the GNU macro
	_D_EXACT_NAMELEN if available, as it's faster than strlen.
	(DIRENTRY): Remove, replacing all uses with 'struct dirent'.
	(DIRENTRY_NONEMPTY): Remove.  All callers now assume it's nonzero.
	* makefile.w32-in (DIR_H): Remove.  All uses replaced with
	$(NT_INC)/dirent.h.
	($(BLD)/w32.$(O)): Do not depend on $(SRC)/ndir.h.
	* ndir.h: Rename to ../nt/inc/dirent.h.
	* sysdep.h (closedir) [!HAVE_CLOSEDIR]: Remove.
	Do not include <dirent.h>; no longer needed.
	* w32.c: Include <dirent.h> rather than "ndir.h".

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2012-11-23  Chong Yidong  <cyd@gnu.org>

	* xftfont.c (xftfont_open): Remove duplicate assignment.

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2012-11-22  Dmitry Antipov  <dmantipov@yandex.ru>

	* alloc.c (Fgarbage_collect): Unblock input after clearing
	gc_in_progress to avoid note_mouse_highlight glitch with GC.
	* frame.h (FRAME_MOUSE_UPDATE): New macro.
	* msdos.c (IT_frame_up_to_date): Use it here...
	* w32term.c (w32_frame_up_to_date): ...here...
	* xterm.c (XTframe_up_to_date): ...and here...
	* nsterm.m (ns_frame_up_to_date): ...but not here.
	* lisp.h (Mouse_HLInfo): Remove mouse_face_deferred_gc member.
	Adjust users.
	* xdisp.c (message2_nolog, message3_nolog, note_mouse_highlight):
	Do not check whether GC is in progress.

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2012-11-22  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (window_buffer_changed): New function.
	(update_menu_bar, update_tool_bar): Use it to
	simplify large 'if' statements.
	(redisplay_internal): Generalize commonly used
	'tail' and 'frame' local variables.

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2012-11-22  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (getcwd): Fix the 2nd argument type, to prevent conflicts
	with Windows system header.

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2012-11-21  Paul Eggert  <eggert@cs.ucla.edu>

	Assume POSIX 1003.1-1988 or later for unistd.h (Bug#12945).
	* alloc.c: Assume unistd.h exists.
	* fileio.c (Fexpand_file_name) [DOS_NT]: Use getcwd, not getwd.
	* sysdep.c (get_current_dir_name): Assume getcwd exists.
	(getwd) [USG]: Remove; no longer needed.
	(sys_subshell) [DOS_NT]: Use getcwd, not getwd.
	* w32.c (getcwd): Rename from getwd, and switch to getcwd's API.
	* w32.h (getcwd): Remove decl.

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2012-11-21  Stefan Monnier  <monnier@iro.umontreal.ca>

	* xdisp.c (fast_set_selected_frame): Rename from update_tool_bar_unwind.
	Make it set selected_window as well.
	(update_tool_bar): Use it.

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2012-11-21  Ken Brown  <kbrown@cornell.edu>
Ken Brown's avatar
Ken Brown committed
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	* emacs.c (main): Set the G_SLICE environment variable for all
	Cygwin builds, not just GTK builds.  See
	https://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00368.html.

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2012-11-21  Eli Zaretskii  <eliz@gnu.org>
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	* w32.c (FILE_DEVICE_FILE_SYSTEM, METHOD_BUFFERED)
	(FILE_ANY_ACCESS, CTL_CODE, FSCTL_GET_REPARSE_POINT) [_MSC_VER]:
	Define for the MSVC compiler.

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	* w32term.h (EnumSystemLocalesW) [_MSC_VER]: Add a missing semi-colon.
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	* fileio.c (Fsubstitute_in_file_name, Ffile_name_directory)
	(Fexpand_file_name) [DOS_NT]: Pass encoded file name to
	dostounix_filename.  Prevents crashes down the road, because
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	dostounix_filename assumes it gets a unibyte string.
	Reported by Michel de Ruiter <michel@sentient.nl>, see
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	http://lists.gnu.org/archive/html/help-emacs-windows/2012-11/msg00017.html

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2012-11-20  Stefan Monnier  <monnier@iro.umontreal.ca>

	Conflate Qnil and Qunbound for `symbol-function'.
	* alloc.c (Fmake_symbol): Initialize `function' to Qnil.
	* lread.c (init_obarray): Set `function' fields to Qnil.
	* eval.c (Fcommandp): Ignore Qunbound.
	(Fautoload, eval_sub, Fapply, Ffuncall, Fmacroexpand):
	* data.c (Ffset, Ffboundp, indirect_function, Findirect_function):
	Test NILP rather than Qunbound.
	(Ffmakunbound): Set to Qnil.
	(Fsymbol_function): Never signal an error.
	(Finteractive_form): Ignore Qunbound.

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2012-11-20  Paul Eggert  <eggert@cs.ucla.edu>

	* eval.c (interactive_p): Remove no-longer-used decl.

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2012-11-20  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (buffer_shared): Adjust comment.
	(buffer_shared_and_changed): New function.
	(prepare_menu_bars, redisplay_internal): Use it to
	decide whether all windows or frames should be updated.
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	(window_outdated): New function.
	(text_outside_line_unchanged_p, redisplay_window): Use it.
	(redisplay_internal): Likewise.  Fix indentation.
1100

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2012-11-20  Stefan Monnier  <monnier@iro.umontreal.ca>

	* eval.c (Finteractive_p, Fcalled_interactively_p, interactive_p): Remove.
	(syms_of_eval): Remove corresponding defsubr.
	* bytecode.c (exec_byte_code): `interactive-p' is now a Lisp function.

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2012-11-19  Daniel Colascione  <dancol@dancol.org>

	* w32fns.c (Fx_file_dialog):
	(Fx_file_dialog): Accomodate rename of cygwin_convert_path* to
	cygwin_convert_file_name*.

	* cygw32.c (Fcygwin_convert_path_to_windows, syms_of_cygw32):
	Rename cygwin_convert_path* to cygwin_convert_file_name*.

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2012-11-18  Paul Eggert  <eggert@cs.ucla.edu>

	* nsterm.m (ns_select): Send SIGIO only to self, not to process group.

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2012-11-18  Eli Zaretskii  <eliz@gnu.org>
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	* w32select.c: Include w32common.h before w32term.h, so that
	windows.h gets included before w32term.h uses some of its
	features, see below.

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	* w32term.h (LOCALE_ENUMPROCA, LOCALE_ENUMPROCW) [_MSC_VER]:
	New typedefs.
	(EnumSystemLocalesA, EnumSystemLocalesW) [_MSC_VER]:
	New prototypes.
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	(EnumSystemLocales) [_MSC_VER]: Define if undefined.  (Bug#12878)

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2012-11-18  Jan Djärv  <jan.h.d@swipnet.se>
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	* nsterm.m (hold_event): Set send_appdefined to YES (Bug#12834).
	(ns_select): Return at once if events are held (Bug#12834).

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2012-11-18  enami tsugutomo  <tsugutomo.enami@jp.sony.com>
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	* unexelf.c (ELFSIZE) [__NetBSD__ && _LP64]: Set to 64.
	Needed following 2012-10-20 change.  (Bug#12902)

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2012-11-18  Juanma Barranquero  <lekktu@gmail.com>

	* w32proc.c (waitpid): Remove unused label get_result.

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2012-11-17  Juanma Barranquero  <lekktu@gmail.com>

	* makefile.w32-in (SYSWAIT_H): New macro.
	($(BLD)/callproc.$(O), $(BLD)/w32proc.$(O), $(BLD)/process.$(O))
	($(BLD)/sysdep.$(O)): Update dependencies.

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2012-11-17  Paul Eggert  <eggert@cs.ucla.edu>

	Assume POSIX 1003.1-1988 or later for fcntl.h (Bug#12881).
	* callproc.c (relocate_fd): Assume F_DUPFD.
	* emacs.c, term.c (O_RDWR): Remove.
	* keyboard.c (tty_read_avail_input): Use O_NONBLOCK rather than
	O_NDELAY, since O_NONBLOCK is the standard name for this flag.
	* nsterm.m: Assume <fcntl.h> exists.
	* process.c (NON_BLOCKING_CONNECT, allocate_pty, create_process)
	(create_pty, Fmake_network_process, server_accept_connection)
	(wait_reading_process_output, init_process_emacs):
	Assume O_NONBLOCK.
	(wait_reading_process_output): Put in a special case for WINDOWSNT
	to mimick the older behavior where it had O_NDELAY but not O_NONBLOCK.
	It's not clear this is needed, but it's a more-conservative change.
	(create_process): Assume FD_CLOEXEC.
	(create_process, create_pty): Assume O_NOCTTY.
	* sysdep.c (init_sys_modes, reset_sys_modes): Assume F_SETFL.
	(reset_sys_modes): Use O_NONBLOCK rather than O_NDELAY.
	Omit if not DOS_NT, since F_GETFL is not defined there.
	(serial_open): Assume O_NONBLOCK and O_NOCTTY.
	* term.c: Include <fcntl.h>, for flags like O_NOCTTY.
	(O_NOCTTY): Remove.
	(init_tty): Assume O_IGNORE_CTTY is defined to 0 on platforms that
	lack it, since gnulib guarantees this.
	* w32.c (fcntl): Test for O_NONBLOCK rather than O_NDELAY.

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2012-11-17  Eli Zaretskii  <eliz@gnu.org>

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	* w32.c (faccessat): Pretend that directories have the execute bit
	set.  Emacs expects that, e.g., in files.el:cd-absolute.

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	* w32proc.c (create_child): Don't clip the PID of the child
	process to fit into an Emacs integer, as this is no longer a
	restriction.
	(waitpid): Rename from sys_wait.  Emulate a Posix 'waitpid' by
	reaping only the process specified by PID argument, if that is
	positive.  Use PID instead of dead_child to know which process to
	reap.  Wait for the child to die only if WNOHANG is not in
	OPTIONS.
	(sys_select): Don't set dead_child.

	* sysdep.c (wait_for_termination_1): Remove the WINDOWSNT portion,
	as it is no longer needed.

	* process.c (waitpid, WUNTRACED) [!WNOHANG]: Remove definitions,
	no longer needed.
	(record_child_status_change): Remove the setting of
	record_at_most_one_child for the !WNOHANG case.

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2012-11-17  Paul Eggert  <eggert@cs.ucla.edu>

	Fix problems in ns port found by static checking.
	* nsterm.m: Include <pthread.h>, for pthread_mutex_lock etc.
	(hold_event, setPosition:portion:whole:): Send SIGIO only to self,
	not to process group.
	(ns_select): Use emacs_write, not write, as that's more robust
	in the presence of signals.
	(fd_handler:): Check for read errors.

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2012-11-16  Glenn Morris  <rgm@gnu.org>

	* editfns.c (Fmessage): Mention message-log-max.  (Bug#12849)

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2012-11-16  Stefan Monnier  <monnier@iro.umontreal.ca>
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	* eval.c (Finteractive_p): Revert lexbind-merge mishap.

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2012-11-16  Eli Zaretskii  <eliz@gnu.org>
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	* w32proc.c (timer_loop): Make sure SuspendThread and ResumeThread
	use the same value of thread handle.
	(start_timer_thread): If the timer thread exited (due to error),
	clean up by closing the two handles it used.  Duplicate the caller
	thread's handle here, so it gets duplicated only once, when
	launching the timer thread.  Set priority of the timer thread, not
	the caller thread.
	(getitimer): Don't duplicate the caller thread's handle here.
	(Bug#12832)

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2012-11-16  Jan Djärv  <jan.h.d@swipnet.se>
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	* nsterm.m (hold_event): Send SIGIO to make sure ns_read_socket is
	called (Bug#12834).

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2012-11-16  Paul Eggert  <eggert@cs.ucla.edu>

	Remove no-longer-used pty_max_bytes variable.
	* process.c (pty_max_bytes): Remove; unused.
	(send_process): Do not set it.

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2012-11-15  Juanma Barranquero  <lekktu@gmail.com>

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

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2012-11-15  Paul Eggert  <eggert@cs.ucla.edu>

	* eval.c (mark_backtrace) [BYTE_MARK_STACK]: Remove stray '*'.
	This follows up on the 2012-09-29 patch that removed indirection
	for the 'function' field.  Reported by Sergey Vinokurov in
	<http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00263.html>.

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2012-11-14  Eli Zaretskii  <eliz@gnu.org>

	* w32.c (faccessat): Rename from sys_faccessat.  (No need to use a
	different name, as the MS runtime does not have such a function,
	and probably never will.)  All callers changed.  Ignore DIRFD
	value if PATH is an absolute file name, to match Posix spec
	better.  If AT_SYMLINK_NOFOLLOW is set in FLAGS, don't resolve
	symlinks.

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2012-11-14  Dmitry Antipov  <dmantipov@yandex.ru>

	* xdisp.c (echo_area_display, redisplay_internal):
	Omit redundant check whether frame_garbaged is set.

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2012-11-14  Paul Eggert  <eggert@cs.ucla.edu>

	Use faccessat, not access, when checking file permissions (Bug#12632).
	This fixes a bug that has been present in Emacs since its creation.
	It was reported by Chris Torek in 1983 even before GNU Emacs existed,
	which must set some sort of record.  (Torek's bug report was against
	a predecessor of GNU Emacs, but GNU Emacs happened to have the
	same common flaw.)  See Torek's Usenet posting
	"setuid/setgid programs & Emacs" Article-I.D.: sri-arpa.858
	Posted: Fri Apr  8 14:18:56 1983.
	* Makefile.in (LIB_EACCESS): New macro.
	(LIBES): Use it.
	* callproc.c (init_callproc):
	* charset.c (init_charset):
	* fileio.c (check_existing, check_executable, check_writable)
	(Ffile_readable_p):
	* lread.c (openp, load_path_check):
	* process.c (allocate_pty):
	* xrdb.c (file_p):
	Use effective UID when checking permissions, not real UID.
	* callproc.c (init_callproc):
	* charset.c (init_charset):
	* lread.c (load_path_check, init_lread):
	Test whether directories are accessible, not merely whether they exist.
	* conf_post.h (GNULIB_SUPPORT_ONLY_AT_FDCWD): New macro.
	* fileio.c (check_existing, check_executable, check_writable)
	(Ffile_readable_p):
	Use symbolic names instead of integers for the flags, as they're
	portable now.
	(check_writable): New arg AMODE.  All uses changed.
	Set errno on failure.
	(Ffile_readable_p): Use faccessat, not stat + open + close.
	(Ffile_writable_p): No need to call check_existing + check_writable.
	Just call check_writable and then look at errno.  This saves a syscall.
	dir should never be nil; replace an unnecessary runtime check
	with an eassert.  When checking the parent directory of a nonexistent
	file, check that the directory is searchable as well as writable, as
	we can't create files in unsearchable directories.
	(file_directory_p): New function, which uses 'stat' on most platforms
	but faccessat with D_OK (for efficiency) if WINDOWSNT.
	(Ffile_directory_p, Fset_file_times): Use it.
	(file_accessible_directory_p): New function, which uses a single
	syscall for efficiency.
	(Ffile_accessible_directory_p): Use it.
	* xrdb.c (file_p): Use file_directory_p.
	* lisp.h (file_directory_p, file_accessible_directory_p): New decls.
	* lread.c (openp): When opening a file, use fstat rather than
	stat, as that avoids a permissions race.  When not opening a file,
	use file_directory_p rather than stat.
	(dir_warning): First arg is now a usage string, not a format.
	Use errno.  All uses changed.
	* nsterm.m (ns_term_init): Remove unnecessary call to file-readable
	that merely introduced a race.
	* process.c, sysdep.c, term.c: All uses of '#ifdef O_NONBLOCK'
	changed to '#if O_NONBLOCK', to accommodate gnulib O_* style,
	and similarly for the other O_* flags.
	* w32.c (sys_faccessat): Rename from sys_access and switch to
	faccessat's API.  All uses changed.
	* xrdb.c: Do not include <sys/stat.h>; no longer needed.
	(magic_db): Rename from magic_file_p.
	(magic_db, search_magic_path): Return an XrmDatabase rather than a
	char *, so that we don't have to test for file existence
	separately from opening the file for reading.  This removes a race
	fixes a permission-checking problem, and simplifies the code.
	All uses changed.
	(file_p): Remove; no longer needed.

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2012-11-13  Dmitry Antipov  <dmantipov@yandex.ru>

	Omit glyphs initialization at startup.
	* dispnew.c (glyphs_initialized_initially_p): Remove.
	(adjust_frame_glyphs_initially): Likewise.  Adjust users.
	(Fredraw_frame): Move actual code from here...
Eli Zaretskii's avatar
Eli Zaretskii committed
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	(redraw_frame): ...to here.  Add eassert.  Adjust comment.
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	(Fredraw_display): Use redraw_frame.
	* xdisp.c (clear_garbaged_frames): Likewise.

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2012-11-13  Eli Zaretskii  <eliz@gnu.org>
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	* xdisp.c (decode_mode_spec): Limit the value of WIDTH argument
	passed to pint2str and pint2hrstr to be at most the size of the
	frame's decode_mode_spec_buffer.  This avoids crashes with very
	large values of FIELD_WIDTH argument to decode_mode_spec.
	(Bug#12867)

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2012-11-13  Paul Eggert  <eggert@cs.ucla.edu>

	Fix a race with verify-visited-file-modtime (Bug#12863).
	Since at least 1991 Emacs has ignored an mtime difference of no
	more than one second, but my guess is that this was to work around
	file system bugs that were fixed long ago.  Since the race is
	causing problems now, let's remove that code.
	* fileio.c (Fverify_visited_file_modtime): Do not accept a file
	whose time stamp is off by no more than a second.  Insist that the
	file time stamps match exactly.

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

	* frame.h (struct frame): Convert external_tool_bar member to
	1-bit unsigned bitfield.
	* termhooks.h (struct terminal): Remove mouse_moved member since
	all users are long dead.  Adjust comment on mouse_position_hook.

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

	Simplify by using FOR_EACH_FRAME here and there.
	* frame.c (next_frame, prev_frame, other_visible_frames)
	(delete_frame, visible-frame-list): Use FOR_EACH_FRAME.
	* w32term.c (x_window_to_scroll_bar): Likewise.
	* window.c (window_list): Likewise.
	* xdisp.c (x_consider_frame_title): Likewise.
	* xfaces.c ( Fdisplay_supports_face_attributes_p): Likewise.
	* xfns.c (x_window_to_frame, x_any_window_to_frame)
	(x_menubar_window_to_frame, x_top_window_to_frame): Likewise.
	* xmenu.c (menubar_id_to_frame): Likewise.
	* xselect.c (frame_for_x_selection): Likewise.
	* xterm.c (x_frame_of_widget, x_window_to_scroll_bar)
	(x_window_to_menu_bar): Likewise.
	* w32fns.c (x_window_to_frame): Likewise.  Adjust comment.

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2012-11-12  Paul Eggert  <eggert@cs.ucla.edu>

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	* data.c (Qdefalias_fset_function): Now static.

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	Another tweak to vectorlike_header change.
	* alloc.c (struct Lisp_Vectorlike_Free, NEXT_IN_FREE_LIST):
	Remove, and replace all uses with ...
	(next_in_free_list, set_next_in_free_list):
	New functions, which respect C's aliasing rules better.

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2012-11-11  Paul Eggert  <eggert@cs.ucla.edu>

	* window.c (list4i): Rename from 'quad'.  All uses changed.
	Needed because <sys/types.h> defines 'quad' on Solaris 10.

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

	* xdisp.c (start_hourglass) [HAVE_NTGUI]: Add block to silence
	warning about mixing declarations and code in ISO C90.

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2012-11-10  Martin Rudalics  <rudalics@gmx.at>
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	* window.c (Fsplit_window_internal): Set combination limit of
	new parent window to t iff Vwindow_combination_limit is t;
	fixing a regression introduced with the change from 2012-09-22.
1414
	(Fset_window_combination_limit): Fix doc-string.
1415

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2012-11-10  Eli Zaretskii  <eliz@gnu.org>
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	* xdisp.c (try_scrolling): Fix correction of aggressive-scroll
	amount when the scroll margins are too large.  When scrolling
	backwards in the buffer, give up if cannot reach point or the
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	scroll margin within a reasonable number of screen lines.
	Fixes point position in window under scroll-up/down-aggressively when
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	point is positioned many lines beyond the window top/bottom.
	(Bug#12811)

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	* ralloc.c (relinquish): If real_morecore fails to return memory
	to the system, don't crash; instead, leave the last heap
	unchanged and return.  (Bug#12774)

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2012-11-09  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp.h (AUTOLOADP): New macro.
	* eval.c (Fautoload): Don't attach to loadhist, call Fdefalias instead.
	* data.c (Ffset): Remove special ad-advice-info handling.
	(Fdefalias): Handle autoload definitions and new Qdefalias_fset_function.
	(Fsubr_arity): CSE.
	(Finteractive_form): Simplify.
	(Fquo): Don't insist on having at least 2 arguments.
	(Qdefalias_fset_function): New var.

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2012-11-09  Jan Djärv  <jan.h.d@swipnet.se>

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	* image.c (xpm_make_color_table_h): Change to hashtest_equal.

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	* nsfont.m (Qcondensed, Qexpanded): New variables.
	(ns_descriptor_to_entity): Restore Qcondensed, Qexpanded setting.
	(syms_of_nsfont): Defsym Qcondensed, Qexpanded.

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2012-11-09  Dmitry Antipov  <dmantipov@yandex.ru>

	Fix recently introduced crash on MS-Windows (Bug#12839).
	* w32term.h (struct scroll_bar): Use convenient header.
	(SCROLL_BAR_VEC_SIZE): Remove.
	* w32term.c (x_scroll_bar_create): Use VECSIZE.

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2012-11-09  Dmitry Antipov  <dmantipov@yandex.ru>

	Tweak last vectorlike_header change.
	* alloc.c (struct Lisp_Vectorlike_Free): Special type to represent
	vectorlike object on the free list.  This is introduced to avoid
	some (but not all) pointer casting and aliasing problems, see
	http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00105.html.
	* .gdbinit (pvectype, pvecsize): New commands to examine vectorlike
	objects.
	(xvectype, xvecsize): Use them to examine Lisp_Object values.

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2012-11-09  Jan Djärv  <jan.h.d@swipnet.se>

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	* nsfont.m (ns_descriptor_to_entity): Qcondensed and Qexpanded has
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	been removed, so remove them here also.

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2012-11-09  Stefan Monnier  <monnier@iro.umontreal.ca>

	* doc.c (Fdocumentation): Handle new property
	dynamic-docstring-function to replace the old ad-advice-info.

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2012-11-09  Paul Eggert  <eggert@cs.ucla.edu>

	* fns.c (Qeql, hashtest_eq): Now static.

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2012-11-08  Stefan Monnier  <monnier@iro.umontreal.ca>

	* lisp.h (XHASH): Redefine to be imperfect and fit in a Lisp int.
	* fns.c (hashfn_eq, hashfn_eql, sxhash):
	* profiler.c (hashfn_profiler): Don't use XUINT on non-integers.
	* buffer.c (compare_overlays): Use XLI rather than XHASH.

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2012-11-08  Paul Eggert  <eggert@cs.ucla.edu>

	Use same hash function for hashfn_profiler as for hash_string etc.
	* fns.c (SXHASH_COMBINE): Remove.  All uses replaced by sxhash_combine.
	* lisp.h (sxhash_combine): New inline function, with the contents
	of the old SXHASH_COMBINE.
	* profiler.c (hashfn_profiler): Use it, instead of having a
	special hash function containing a comparison that always yields 1.

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2012-11-08  Stefan Monnier  <monnier@iro.umontreal.ca>

	* xfaces.c (Qultra_light, Qreverse_oblique, Qreverse_italic)
	(Qultra_condensed, Qextra_condensed, Qcondensed, Qsemi_condensed)
	(Qsemi_expanded, Qextra_expanded, Qexpanded, Qultra_expanded):
	Remove unused vars.

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2012-11-08  Jan Djärv  <jan.h.d@swipnet.se>

	* image.c (xpm_make_color_table_h): Fix compiler error because
	make_hash_table changed.

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2012-11-08  Thomas Kappler <tkappler@gmail.com> (tiny change)

	* nsfont.m (ns_findfonts): Handle empty matchingDescs (Bug#11541).

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2012-11-08  Stefan Monnier  <monnier@iro.umontreal.ca>

	Use ad-hoc comparison function for the profiler's hash-tables.
	* profiler.c (Qprofiler_backtrace_equal, hashtest_profiler): New vars.
	(make_log): Use them.
	(handle_profiler_signal): Don't inhibit quit any longer since we don't
	call Fequal any more.
	(Ffunction_equal): New function.
	(cmpfn_profiler, hashfn_profiler): New functions.
	(syms_of_profiler): Initialize them.
	* lisp.h (struct hash_table_test): New struct.
	(struct Lisp_Hash_Table): Use it.
	* alloc.c (mark_object): Mark hash_table_test fields of hash tables.
	* fns.c (make_hash_table): Take a struct to describe the test.
	(cmpfn_eql, cmpfn_equal, cmpfn_user_defined, hashfn_eq, hashfn_eql)
	(hashfn_equal, hashfn_user_defined): Adjust to new calling convention.
	(hash_lookup, hash_remove_from_table): Move assertion checking of
	hashfn result here.  Check hash-equality before calling cmpfn.
	(Fmake_hash_table): Adjust call to make_hash_table.
	(hashtest_eq, hashtest_eql, hashtest_equal): New structs.
	(syms_of_fns): Initialize them.
	* emacs.c (main): Move syms_of_fns earlier.
	* xterm.c (syms_of_xterm):
	* category.c (hash_get_category_set): Adjust call to make_hash_table.
	* print.c (print_object): Adjust to new hash-table struct.
	* composite.c (composition_gstring_put_cache): Adjust to new hashfn.

Eli Zaretskii's avatar
Eli Zaretskii committed
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2012-11-08  Eli Zaretskii  <eliz@gnu.org>

	* w32fns.c (modifier_set): Fix handling of Scroll Lock when the
	value of w32-scroll-lock-modifier is neither nil nor one of the
	known key modifiers.  (Bug#12806)

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