Reported by ׃scar Fuentes in
http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00699.html
and in
http://lists.gnu.org/archive/html/emacs-devel/2013-03/msg00707.html.
nt/inc/ms-w32.h (USE_NO_MINGW_SETJMP_TWO_ARGS) [_W64]: Define to 1.
For MinGW64, include sys/types.h and time.h.
nt/inc/sys/time.h (struct timeval) [!_W64]: Guard definition with _W64.
(struct timezone) [!_TIMEZONE_DEFINED]: Guard definition with
_TIMEZONE_DEFINED.
nt/addpm.c (_WIN32_IE) [_W64]: For MinGW64, don't define to 0x400.
nt/inc/sys/stat.h: Remove _CRTIMP from prototypes of fstat, stat,
lstat, and fstatat.
lib-src/ntlib.c (struct timespec) [!_TIMEZONE_DEFINED]: Define the
struct only if _TIMEZONE_DEFINED is not defined.
src/w32term.c (WCRANGE, GLYPHSET): Don't define if _W64 is defined.
src/w32.c (REPARSE_DATA_BUFFER): Guard with
MAXIMUM_REPARSE_DATA_BUFFER_SIZE being defined.
* admin/CPP-DEFINES (BSD_SYSTEM, HAVE_FSYNC): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fsync, fdatasync.
* configure.ac (BSD_SYSTEM, BSD_SYSTEM_AHB): Remove; no longer needed.
(fsync): Remove check; now done by gnulib.
* lib/fdatasync.c, lib/fsync.c, m4/fdatasync.m4, m4/fsync.m4:
New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib-src/Makefile.in (LIB_FDATASYNC): New macro.
(emacsclient${EXEEXT}): Use it.
* lib-src/emacsclient.c (main): Use fdatasync, not fsync, since we don't
care about metadata. Keep trying if interrupted.
* lib-src/movemail.c (main, popmail): Don't worry about BSD_SYSTEM, since
fsync is available everywhere (or there is a substitute). Don't
report an error if fsync returns EINVAL.
* nt/inc/ms-w32.h (fdatasync): New macro, suggested by Eli Zaretskii.
* src/Makefile.in (LIB_FDATASYNC): New macro.
(LIBES): Use it.
* src/conf_post.h (BSD_SYSTEM, BSD_SYSTEM_AHB): Remove; no longer needed.
* src/fileio.c (Fwrite_region, write_region_inhibit_fsync):
Don't worry about HAVE_FSYNC, since a substitute fsync is
available if the system lacks one.
(Fwrite_regin): Retry fsync if interrupted.
Fixes: debbugs:13944
unless the --declarations flag is enabled.
(Lisp_help): Update.
(skip_name): New function.
* doc/emacs/maintaining.texi (Tag Syntax): Mention (defvar foo) handling.
* doc/man/etags.1: Mention effect of --declarations in Lisp.
Fixes: debbugs:5600
* admin/CPP-DEFINES (O_RDONLY, O_RDWR, HAVE_FCNTL_H): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fcntl-h.
* configure.ac: Do not check for fcntl.h.
* lib/gnulib.mk: Regenerate.
* lib-src/movemail.c, lib-src/update-game-score.c: Assume <fcntl.h> exists.
* nt/inc/sys/socket.h (O_NONBLOCK): Rename from O_NDELAY, since the
POSIX name for this flag is O_NONBLOCK. All uses changed.
* nt/inc/unistd.h (O_RDWR, O_NOCTTY): New macros. Like AT_FDCWD etc.
these really should be moved to a replacement <fcntl.h> if and
when that gets implemented. In the meantime, include <fcntl.h>
to make sure we don't override its definitions.
* src/callproc.c (relocate_fd): Assume F_DUPFD.
* src/emacs.c, src/term.c (O_RDWR): Remove.
* src/keyboard.c (tty_read_avail_input): Use O_NONBLOCK rather than
O_NDELAY, since O_NONBLOCK is the standard name for this flag.
* src/nsterm.m: Assume <fcntl.h> exists.
* src/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.
* src/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.
* src/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.
* src/w32.c (fcntl): Test for O_NONBLOCK rather than O_NDELAY.
Fixes: debbugs:12881
lib-src/make-docfile.c (IS_SLASH, DEF_ELISP_FILE): New macros.
(scan_lisp_file): Only pass a .el file if its basename matches a
known file in its entirety. Use IS_SLASH and DEF_ELISP_FILE.
lib-src/make-docfile.c (scan_lisp_file): Barf if called with a .el file
other than one of a small list of supported un-compiled files.
lib-src/makefile.w32-in (lisp1, lisp2): Name .elc files wherever they
exist.
lisp/loadup.el: Update comment about uncompiled Lisp files.
Adding and removing a watch seems to work: a new thread is launched
when a watch is added and exits when the watch is removed.
But there are no notifications, so it seems. At least, the Lisp
callback function passed to w32notify-add-watch is not called.
