* src/unexw32.c (get_section_info): Make extra_bss_size be the
maximum of extra_bss_size and extra_bss_size_static. This avoids
computing the size of the output file smaller than it actually
needs to be, which then causes copy_executable_and_dump_data to
write beyond the requested size of the file mapping, thus relying
on the OS roundup to page boundary to save us from ourselves. See
http://lists.gnu.org/archive/html/emacs-devel/2016-12/msg00642.html
for the details.
* lib/stdio-impl.h: Revert the workaround fix of not including
errno.h for MinGW.
This incorporates:
2016-12-14 xalloc-oversized: check for PTRDIFF_MAX too
2016-12-12 fpending: port to native Windows with MSVC
* .gitignore: Do not ignore lib/stdio-impl.h.
* lib/fpending.c, lib/xalloc-oversized.h, m4/fpending.m4:
Copy from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/stdio-impl.h:
New file, copied from gnulib.
* nt/gnulib.mk (EXTRA_DIST): Add stdio-impl.h.
This incorporates:
2016-11-15 sys_time: add gnulib::timeval for C++
2016-11-14 snippet/c++defs: fix real-floating arg functions in C++ mode
2016-11-13 strftime: don't use __THROW
2016-11-12 strftime: tune %q
2016-11-12 Merge strftime.c changes from glibc
2016-11-09 manywarnings: fix -Wno-missing-field-initializers detection
2016-11-05 strftime,strptime: support %q to represent the quarter
The glibc changes in turn incorporate the following strftime.c changes:
2015-10-20 Convert misc function definitions to prototype style
2015-09-26 [BZ #18985] out of range data to strftime() causes segfault
2010-01-09 Add support for XPG7 testing
2009-10-30 Implement Burmese language locale for Myanmar
2008-06-13 [BZ #6612] pass reference to tzset_called around
2007-10-16 [BZ #5184] Add tzset_called argument
* build-aux/snippet/c++defs.h, lib/strftime.c, lib/sys_time.in.h:
* m4/manywarnings.m4: Copy from gnulib.
This incorporates:
2016-10-16 qsort_r: Fix macrology for platforms that lack the function.
2016-10-13 stdint: port SIZE_MAX to glibc s390
2016-10-11 maint: remove stray space after "." in AC_DEFINE comment.
* lib/gnulib.mk: Regenerate.
* lib/stdlib.in.h, m4/st_dm_mode.m4, m4/stdint.m4, m4/stdlib_h.m4:
* m4/utimes.m4: Copy from gnulib.
This follows up on recent problems with the fact that config.h
includes stdlib.h etc.; some files need to include stdlib.h later.
config.h generally should limit itself to includes that are
universally safe; outside of MS-Windows, only stdbool.h makes
the cut among the files currently included. So, move the
other includes to just the files that need them (Bug#24506).
* configure.ac (config_opsysfile): Remove, as this generic hook
is no longer needed.
* lib-src/etags.c, src/unexmacosx.c, src/w32.c, src/w32notify.c:
* src/w32proc.c (_GNU_SOURCE):
Remove, as it’s OK for config.h to do this now.
* src/conf_post.h: Include <ms-w32.h>, instead of the generic
config_opsysfile, for simplicity as this old way of configuring is
now done only for the MS-Windows port. Do not include <ms-w32.h>
if DEFER_MS_W32_H, for the benefit of the few files that want its
effects later. Do not include <alloca.h>, <string.h>, or
<stdlib.h>. Other files modified to include these headers as
needed, or to not include headers that are no longer needed.
* src/lisp.h: Include <alloca.h> and <string.h> here, since
some of the inline functions need them.
* src/regex.c: Include <alloca.h> if not emacs. (If emacs,
we can rely on SAFE_ALLOCA.) There is no longer any need to
worry about HAVE_ALLOCA_H.
* src/unexmacosx.c: Rely on config.h not including stdlib.h.
* src/w32.c, src/w32notify.c, src/w32proc.c (DEFER_MS_W32_H):
Define before including <config.h> first, and include <ms-w32.h>
after the troublesome headers.
The NetBSD library supports localtime_rz directly, and without
this change 'configure' omitted the flexmember test that is marked
as conditional on localtime_rz. Emacs now needs to use
flexmember.m4 even when localtime_rz works.
Problem reported by Thomas Klausner.
* admin/merge-gnulib (GNULIB_MODULES): Add flexmember.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
This incorporates:
2016-09-15 stdint: support new _WIDTH macros
2016-09-15 limits-h: new module
2016-09-15 sys_types: avoid glibc 2.25 warnings about major()
2016-09-15 extensions: port to more ISO C TSes
2016-09-13 intprops: new macro TYPE_WIDTH
2016-09-13 extensions: port to recent ISO C TRs
* .gitignore: Add lib/limits.h.
* doc/misc/texinfo.tex, lib/ftoastr.h, lib/intprops.h:
* lib/stdint.in.h, m4/extensions.m4, m4/stdint.m4, m4/stdio_h.m4:
* m4/sys_types_h.m4: Copy from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/limits.in.h, m4/limits-h.m4: New files, copie from gnulib.
* nt/gnulib.mk: Merge changes from lib/gnulib.mk.
This incorporates:
2016-09-07 flexmember: new macro FLEXALIGNOF
2016-09-07 flexmember: port better to GCC + valgrind
2016-08-18 Port modules to use getprogname explicitly
2016-09-02 manywarnings: add -fno-common
* admin/merge-gnulib (GNULIB_TOOL_FLAGS): Don’t avoid flexmember,
since time_rz now uses part of it. Instead, remove m4/flexmember.m4.
* configure.ac (AC_C_FLEXIBLE_ARRAY_MEMBER): Define away,
since Emacs assumes C99 and therefore removes m4/flexmember.m4.
* lib/euidaccess.c, lib/group-member.c, lib/time_rz.c:
* m4/manywarnings.m4: Copy from gnulib.
* lib/flexmember.h: New file, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
This incorporates:
2016-08-30 intprops: tune INT_NEGATE_OVERFLOW for GCC 5 and 6
2016-08-29 xalloc-oversized.h: port change to GCC 6.2.0
2016-08-29 intprops.h: port recent changes to GCC 6.2.0
2016-08-29 intprops.h: use __typeof__ with GCC 7
2016-08-29 intprops.h, xalloc-oversized.h: work with gcc 7
2016-08-24 intprops: fix paren typo on old platforms
2016-08-24 intprops: port to OpenVMS
* lib/intprops.h, lib/xalloc-oversized.h: Copy from gnulib.
This incorporates:
2016-08-17 maint: preprocessor changes to support z/OS
2016-08-17 string: rename to avoid '__string'
* doc/misc/texinfo.tex, lib/alloca.in.h, lib/string.in.h:
Copy from gnulib.
This incorporates:
2016-06-24 intprops: port better to GCC 7
2016-06-13 xalloc-oversized: port to GCC 7; fewer warnings
* doc/misc/texinfo.tex, lib/xalloc-oversized.h, lib/intprops.h:
Copy from gnulib.
This incorporates:
2016-05-30 Use GCC_LINT, not lint
2016-05-29 secure_getenv: Port to many more platforms.
* doc/misc/texinfo.tex, lib/secure_getenv.c, lib/verify.h:
* m4/secure_getenv.m4: Copy from gnulib.
b134c20 Sync with gnulib
bb30fa9 Fix last change on 2016-01-02
488a72f ; Spelling fixes
9b1aab9 Port run-prolog EMACS to SWI-Prolog 7.2.3
0e7bcec Avoid crashes due to unreasonably large or small text scaling
85f257c Improve documentation of 'with-eval-after-load'
668c7bc Improve handling of non-ASCII characters in Git log messages
b570769 Remove undefined behavior in OS X dumper.
97211f3 Fix clipping of xwidgets
e87fbc0 Improve Lisp-level documentation of tooltips
9f1786e Faces names should not end in "-face".
3283271 * src/xsmfns.c (syms_of_xsmfns): Remove stray "s in doc strings.
a1f221b Comint and compile no longer set EMACS
5c28890 * lisp/subr.el (read-key): Don't let the prompt linger (bug#2...
a75b9a6 Merge branch 'emacs-25' of git.savannah.gnu.org:/srv/git/emac...
c93ae7a Allow to customize names of executables used by grep.el
f6497c6 Set locale encoding to UTF-8 when run from OS X GUI.
7ad1d07 Avoid signaling errors in 'M-n' at the 'C-x C-f' prompt
a3f1ac2 Avoid infinite loop in 'studlify-word'
f36df4b Don’t recommend obsolete EMACS env var
fb0b531 * lisp/emacs-lisp/package.el: Change from a few days ago need...
This is for picky compilers whose stdint.h fails our C11 tests.
Problem reported for clang by Philipp Stephani (Bug#23261).
This incorporates:
2016-04-11 stdint: port to strict C11 left shift
* doc/misc/texinfo.tex, lib/stdint.in.h: Copy from gnulib.
This incorporates:
2016-04-03 stdint: detect good enough pre-C++11 stdint.h in C++ mode
2016-04-01 stddef: support configuring with g++
* doc/misc/texinfo.tex, lib/stddef.in.h, m4/stdint.m4:
Copy from gnulib.
This incorporates:
2016-03-22 gitlog-to-changelog: suppress ignored chatter
2016-03-21 sys_select: port to new Cygwin
* build-aux/gitlog-to-changelog, doc/misc/texinfo.tex:
* lib/sys_select.in.h: Copy from gnulib.
This incorporates:
2016-03-15 time_rz: port to clang -Wunused-const-variable
2016-03-15 select: port more to Intel 2016.1.150 compiler
* lib/sys_select.in.h, lib/time_rz.c: Copy from gnulib.
facb5e2 Update Emacs manual section related to character folding
4efea8e ; * etc/DEBUG: Fix a typo. (Bug#22984)
f8df21b Update admin/notes/unicode
950be68 Add symref-filepattern entries for c?perl-mode
8b8a6ad Don't use XRANDR 1.3 extensions if the server doesn't support them.
985dacf ; NEWS update for the last change in etags
741a6f8 Sync with gnulib
7352c6c Rework C source files to avoid ^(
a589e9a By default, etags produces unqualified Perl tag names
72c7438 Indent methods with keyword names correctly
28532a9 Propertize character literals and special global variables
differently
a7d6f39 ; Fix last change in NEWS
83b2a20 Change how /etc/NEWS presents character folding
b417c5a Revert "Revert "Backport: * lisp/isearch.el: Turn char-folding
off by default""
711ca36 Properly handle lambda as read function (bug 22961)
1b9d616 Propertize operator symbol names with symbol syntax class
9b16bc2 Stop recognizing :#{} as symbol in ruby-mode
366ec77 Allow using the left shift operator without spaces on both sides
02bf7cc Properly handle unquoting in wdired (bug 22938)
16cf469 ; Spelling fix and tighten up comment
f50bc04 Allow splat operator before percent literal
991c801 Don't apply the return value of goto-char as syntax class
6e63b3e Guard against nested percent literals
066f3bc Recognize iuwu-mod after an escaped newline
6f7a57c Fix symbolic mode string conversion for s and t
50b9826 Update 'ucs-names' database
993b2fb Improve doc string of 'shell-command'
b71c717 Make the code in movemail_strftime more general
cc057e4 Speed up redisplay of binary files with long series of nulls
e51b27e Remove the highlighting support for quoting 'like this' inside
Lisp docstrings
b1abce1 Restore leading space in movemail pop output
98b8d44 Fix bidi-paragraph-direction in Rmail view buffer
dc9d837 Don't misindent computed property generator methods
7923112 Fix mbox files produced by movemail on MS-Windows
c45a1ca doc string file descriptor exhaustion fix
265141b Fix Bug#22814
This incorporates:
2016-03-08 intprops: make .h file license match module
2016-03-08 acl: fix missing return on Cygwin
2016-03-05 extern-inline: port to PGI CC
* doc/misc/texinfo.tex, lib/intprops.h, lib/set-permissions.c:
* m4/extern-inline.m4:
Copy from gnulib.
a9c48d5 Additional fixes for file notification
6bd9d69 Fix documentation of 'global-disable-point-adjustment'
8c22ac9 ; Spelling fix
2975784 Set file modes of pinentry socket for extra safety
2667b3e Clarify GnuPG version compatibility chapter
5e34c36 Revert "Change the default socket location for pinentry"
e19c1c3 Kill off xref--display-history
5698947 Keep the xref buffer visible until the user quits it explicitly
e34fbde Change the default socket location for pinentry
5f89658 Mention how to enable pinentry feature
db51224 Sync with gnulib
aa5a794 Remove `semanticdb-save-all-db-idle' from `auto-save-hook'
2d8b2fd Restore point when writing semantic table to disk
27d3430 Mention pinentry.el in epa manual
5baa001 Fix Bug#22736
7261355 Grammar fix in doc string
d0f3b18 Naming fix for consistency
74ec92d Prefer customized value for GnuPG executable
ea0b604 Fix memory reservation on MS-Windows
c5f72aa Update NextStep readme and add wish list.
6de26a7 Report also result in `file-notify--test-event-handler'
5d17ae7 Improve file-notify-test08-watched-file-in-watched-dir
1cb1268 Fix todo-mode item date editing bugs
1e996cf Fix "[:upper:]" for non-ASCII characters
896f993 Allow customising the article mode cursor behavior
24c1c1d Use pop-to-buffer-same-window in woman.el
2a75f64 New filenotify test for bug#22736
c9bccf7 Report critical battery errors
d675db9 Make eww message toggling message clearer
5e0bb40 * lisp/calc/calc-units.el (math-standard-units): Update to 2014 CODATA adjustment.
fa8fd65 ; Improve character-folding entries in NEWS
3722a69 Fix bugs in window resizing code
289d5c6 Fix decoding DOS EOL in a unibyte buffer
2abcb06 Correct c-parse-state cache manipulation error.
14aec91 Take advantage of new GnuPG version check function
e80c2a7 Make GnuPG version check robuster
15a9464 Fix x-load-color-file pointer signedness
132dbf0 * lisp/time-stamp.el (time-stamp-time-zone): Fix doc string punct.
78ab6f1 Follow convention for greek letter constants.
106b5bb Add Stefan-Boltzmann constant to calc units table.
b96baa8 * lisp/calc/calc-units.el (math-build-units-table-buffer): Use special-mode.
5f91cf9 Avoid loading cl-lib for term/xterm.elc, eg in -Q -nw. (Bug#22669)
2d40f7d Fix soffice UserInstallation-URL for Windows
b1a3ebe Fix display of <pre> elements
57d0e3d ; * lisp/help-fns.el: Remove outdated comment.
7a0628d ; * admin/make-tarball.txt: Mention cleaning.
This incorporates:
2016-02-09 stdalign: port to clang 3.7.0
2016-02-06 misc: port better to gcc -fsanitize=address
* doc/misc/texinfo.tex, lib/stdalign.in.h, m4/acl.m4, m4/getgroups.m4:
Copy from gnulib.
* configure.ac (hybrid malloc): Simplify configuration.
(SHEAP_OBJ): Remove; no longer needed.
(HYBRID_MALLOC): New var. Subst it.
(HYBRID_MALLOC_LIB): New Automake conditional.
* lib/Makefile.am (noinst_LIBRARIES): Add libegnu.a only if
HYBRID_MALLOC_LIB.
(libegnu_a_CPPFLAGS): Omit AM_CPPFLAGS; not needed.
(MOSTLYCLEANFILES): Add libegnu.a.
* src/Makefile.in (SHEAP_OBJ): Remove.
(HYBRID_MALLOC): New macro.
(base_obj): Use it to conditionally add sheap.o.
(LIBEGNU_ARCHIVE): New macro.
($(LIBEGNU_ARCHIVE)): New rule, replacing $(lib)/libegnu.a.
All uses of the latter replaced by the former.
* src/alloc.c (USE_ALIGNED_ALLOC): Simplify configuration.
Correct misspelling ALIGNED_ALLOC to HAVE_ALIGNED_ALLOC.
* src/gmalloc.c: Update comment.
* src/lisp.h (aligned_alloc)
[!DOUG_LEA_MALLOC && !HYBRID_MALLOC && !SYSTEM_MALLOC]:
New decl.
(Bug#22086)
This is done to support HYBRID_MALLOC, since some static variables
(e.g., last_environ in putenv.c) hold pointers to memory malloced
before dumping (Bug#22086).
* lib/Makefile.am: Add incantation to install libegnu.a.
* src/Makefile.in ($(lib)/libgnu.a): Replace with libegnu.a
(temacs$(EXEEXT)): Use it.
Do the same for "permit", "enable", "prevent", and (where appropriate)
"require".
doc/misc/reftex.texi:
doc/misc/url.texi:
lib/get-permissions.c:
lib/strftime.c:
lisp/org/org-element.el:
lisp/org/org-mobile.el:
lisp/textmodes/reftex-vars.el:
src/bidi.c:
src/emacs.c:
src/xdisp.c:
test/etags/c-src/emacs/src/lisp.h:
Expunge the likes of "This allows to do something" from the above files.
This incorporates:
2016-01-24 openat_proc_name: fix last '/' overwritten on OS/2 kLIBC
2016-01-24 closedir, dirfd, opendir: port to OpenSolaris 5.10
2016-01-15 detect utimes() correctly on OS/2 kLIBC
2016-01-15 openat_proc_name: port to OS/2 kLIBC
2016-01-14 stdint: check _INTPTR_T_DECLARED for intptr_t etc.
2016-01-14 opendir, closedir, dirfd, fdopendir: port to OS/2 kLIBC
2016-01-14 dup, dup2, fcntl: support a directory fd on OS/2 kLIBC
2016-01-14 binary-io: don't put fd in binary mode if a console on EMX
2016-01-14 sig2str: list all signals on FreeBSD >= 7
2016-01-13 acl-permissions: port to USE_ACL==0 platforms
2016-01-12 mktime: rename macro to avoid glibc clash
2016-01-12 Port "$@" to OpenIndiana ksh93
2016-01-12 Port Universal Time settings to strict POSIX
* build-aux/gitlog-to-changelog, build-aux/update-copyright:
* doc/misc/texinfo.tex, lib/acl-internal.c, lib/acl-internal.h:
* lib/binary-io.h, lib/dirent.in.h, lib/dirfd.c, lib/dup2.c:
* lib/fcntl.c, lib/fdopendir.c, lib/mktime.c, lib/openat-proc.c:
* lib/sig2str.h, lib/stdint.in.h, m4/dirfd.m4, m4/dup2.m4:
* m4/fcntl.m4, m4/utimes.m4:
Copy from gnulib.
* m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Add ignore-value.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/ignore-value.h: New file, from gnulib.
* src/keyboard.c: Include it.
(write_stdout, read_stdin): New functions.
(handle_interrupt): Use them instead of printf and getchar,
and avoid fflush when handling signals.
This incorporates:
2015-10-30 intprops: add WRAPV and const flavors for GCC 5
2015-10-25 stdalign: port to Sun C 5.9
* doc/misc/texinfo.tex, lib/intprops.h, lib/stdalign.in.h:
Copy from gnulib.
This incorporates:
2015-10-18 stdalign: work around pre-4.9 GCC x86 bug
2015-10-18 time_rz: avoid warning from bleeding-edge gcc's -Wnonnull
* doc/misc/texinfo.tex, lib/stdalign.in.h, lib/time_rz.c:
Copy from gnulib.
This incorporates:
2015-10-13 binary-io, u64, unistd: port to strict C
2015-09-26 c-ctype: do not worry about EBCDIC + char signed
2015-09-25 c-ctype: port better to z/OS EBCDIC
2015-09-25 gnulib-common.m4: fix gl_PROG_AR_RANLIB/AM_PROG_AR clash
* doc/misc/texinfo.tex, lib/binary-io.c, lib/c-ctype.h, lib/u64.c:
* lib/unistd.c, m4/gnulib-common.m4, m4/gnulib-comp.m4:
Copy from gnulib.
This incorporates:
2015-09-25 c-ctype: rewrite to use inline functions
2015-09-24 maint: add coding cookies to non-ASCII sources
2015-09-24 gitlog-to-changelog: trim only trailing whitespaces
* build-aux/gitlog-to-changelog, doc/misc/texinfo.tex:
* lib/acl-internal.c, lib/acl-internal.h, lib/c-ctype.c:
* lib/c-ctype.h, lib/get-permissions.c, lib/qcopy-acl.c:
* lib/set-permissions.c:
Copy from gnulib.
* nt/configure.bat: Remove everything except the blurb about the
new build procedure.
* make-dist: Remove references to makefile.w32-in in various
directories, and to files in nt/ that were deleted.
* etc/NEWS: Mention the fact that the files were dropped.
This incorporates:
2015-07-27 time_rz: port better to MinGW
2015-07-27 time: port __need_time_t to MinGW
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/strftime.c, lib/time.in.h, lib/time_rz.c: Copy from gnulib.
* lib/time-internal.h: New file, from gnulib.
* nt/mingw-cfg.site (ac_cv_header_pthread_h)
(gl_cv_sys_struct_timespec_in_pthread_h): Force to "no", to avoid
picking up 'struct timespec' from pthread.h, if it is installed on
the user's system. We want either the definitions from MinGW
system headers, if available, or the Gnulib replacements if not.
* nt/inc/ms-w32.h <struct timespec>: Don't define, as we now use
lib/time.h.
* lib/time.in.h: Don't let __need_* symbols affect what happens on
MinGW. These symbols are defined by MinGW system headers, but we
don't want that to affect whether Gnulib portions of the header
are or aren't used.
This simplifies time conversions in other time zones.
It also prevents display-time-world tampering with TZ (Bug#21020).
* admin/admin.el (add-release-logs):
Use improved add-log-time-format API.
* admin/merge-gnulib (GNULIB_MODULES): Add time_rz, timegm.
(GNULIB_TOOL_FLAGS): Avoid flexmember, setenv, unsetenv.
* configure.ac (tzalloc): Remove test for this, since
Emacs no longer uses HAVE_TZALLOC directly.
* doc/lispref/os.texi (Time of Day, Time Conversion)
(Time Parsing):
* etc/NEWS: Document the new behavior.
Merge from gnulib, incorporating:
2015-07-25 strftime: fix newly-introduced bug on Solaris
2015-07-23 fprintftime, strftime: use timezone_t args
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/strftime.c, lib/strftime.h, lib/time.in.h, m4/sys_time_h.m4:
* m4/time_h.m4:
Update from gnulib.
* lib/time_rz.c, lib/timegm.c, m4/time_rz.m4, m4/timegm.m4:
New files from gnulib.
* lisp/time-stamp.el (time-stamp-string):
* lisp/time.el (display-time-world-list)
(display-time-world-display):
Use new API, with time zone arg.
* lisp/time.el (display-time-world-display):
Fix race when current-time advances while we're running.
* lisp/vc/add-log.el (add-log-iso8601-time-zone)
(add-log-iso8601-time-string): Accept optional time zone arg.
* lisp/vc/add-log.el (add-change-log-entry):
* lisp/vc/log-edit.el (log-edit-changelog-ours-p): Use new arg.
* nt/gnulib.mk: Propagate lib/gnulib.mk changes here.
Add rules for the time module, since they're now needed
for tzalloc etc.
* src/conf_post.h (getenv_TZ, setenv_TZ): New macros.
(emacs_getenv_TZ, emacs_setenv_TZ): New decls.
* src/editfns.c: Include errno.h.
(set_time_zone_rule): Omit unnecessary forward decl.
(initial_tz): Remove, replacing with ...
(local_tz, wall_clock_tz, utc_tz): New static vars and constants.
(tzeqlen): New constant; prefer it to (sizeof "TZ=" - 1).
(emacs_localtime_rz, emacs_mktime_z, xtzalloc, xtzfree)
(tzlookup): New static functions.
(init_editfns): New arg DUMPING. All uses changed.
(init_editfns): Omit most initialization if dumping, not if
!initialized. Initialize wall_clock_tz and local_tz.
(emacs_nmemftime, format_time_string): Time zone argument can now
be any time zone, not just a boolean for UTC or local time. All
callers changed.
(Fformat_time_string, Fencode_time, Fcurrent_time_string)
(Fcurrent_time_zone): New optional arg ZONE.
(Fdecode_time, Fset_time_zone_rule): ZONE arg can now also take
the same form as with the other new additions.
(decode_time_zone): Remove; no longer needed.
(tzvalbuf): Now file-scope.
(emacs_getenv_TZ, emacs_setenv_TZ): New functions.
(syms_of_editfns): Define Qwall.
* src/editfns.c (mktime_z) [!HAVE_TZALLOC]:
* src/systime.h (mktime_z, timezone_t, tzalloc, tzfree)
[!HAVE_TZALLOC]:
Remove; now supplied by gnulib.
* src/emacs.c (main):
* src/lisp.h (init_editfns): Adjust to init_editfns API change.
This incorporates:
2015-06-06 acl-permissions: pacify -Wsuggest-attribute=const
2015-06-05 stdio: Don't redefine gets when using C++
2015-06-05 acl-permissions: port to AIX, C89 HP-UX
2015-06-02 file-has-acl: fix build on Mac OS X 10
2015-06-01 gnulib-tool: concatenate lib_SOURCES to a single line
2015-06-01 pthread_sigmask: discount system version if a simple macro
2015-05-31 readlinkat: avoid OS X 10.10 trailing slash bug
* doc/misc/texinfo.tex, lib/acl-internal.h, lib/get-permissions.c:
* lib/readlinkat.c, lib/set-permissions.c, lib/stdio.in.h:
* m4/acl.m4, m4/pthread_sigmask.m4, m4/readlinkat.m4: Copy from gnulib.
* lib/gnulib.mk: Regenerate.
This incorporates the following (Bug#20681):
2015-05-29 acl-permissions: Fix build on Mac OS X and older AIX
2015-05-29 acl-permissions: Fix build on Solaris and Cygwin
* lib/set-permissions.c: Copy from gnulib.
This incorporates:
2015-05-27 qacl: Reimplement qset_acl and qcopy_acl (Bug#20666)
2015-05-27 file-has-acl: Split feature tests again (Bug#20667)
2015-05-27 string: fix build failure on BSD/OSX with FORTIFY_SOURCE
2015-05-26 stdio: limit __gnu_printf__ witness to gcc 4.4+
2015-05-26 inttypes: force correct mingw PRIdMAX even without <stdio.h>
2015-05-26 stdio: fix probe on mingw under gcc 5.1
* admin/merge-gnulib (GNULIB_MODULES):
Replace qacl with qcopy-acl, since we don't need the rest of qacl.
* doc/misc/texinfo.tex, lib/acl-internal.c, lib/acl-internal.h:
* lib/inttypes.in.h, lib/qcopy-acl.c, lib/qset-acl.c:
* lib/string.in.h, m4/acl.m4, m4/stdio_h.m4:
Get latest versions from gnulib.
* lib/get-permissions.c, lib/set-permissions.c: New files.
* lib/gnulib.mk, m4/gnulib-comp.m4:
Regenerate.
* nt/gnulib.mk: Merge lib/gnulib.mk changes by hand.
* .gitignore: Add 'ChangeLog'.
* build-aux/gitlog-to-changelog: New file, from Gnulib.
* build-aux/gitlog-to-emacslog: New file.
* CONTRIBUTE: Document the revised workflow.
* Makefile.in (clean): Remove *.tmp and etc/*.tmp*
instead of just special cases.
(CHANGELOG_HISTORY_INDEX_MAX, CHANGELOG_N, gen_origin): New vars.
(ChangeLog, unchanged-history-files, change-history)
(change-history-commit): New rules.
* admin/admin.el (make-manuals-dist--1):
Don't worry about doc/ChangeLog.
* admin/authors.el: Add a FIXME.
* admin/make-tarball.txt:
* lisp/calendar/icalendar.el:
* lisp/gnus/deuglify.el:
* lisp/obsolete/gulp.el:
* lwlib/README:
Adjust to renamed ChangeLog history files.
* admin/merge-gnulib (GNULIB_MODULES): Add gitlog-to-changelog.
* admin/notes/repo: Call it 'master' a la Git, not 'trunk' a la Bzr.
Remove obsolete discussion of merging ChangeLog files.
New section "Maintaining ChangeLog history".
* build-aux/git-hooks/pre-commit:
Reject attempts to commit files named 'ChangeLog'.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* make-dist: Make and distribute top-level ChangeLog if there's a
.git directory. Distribute the new ChangeLog history files
instead of scattered ChangeLog files. Distribute the new files
gitlog-to-changelog and gitlog-to-emacslog.
Fixes: bug#19113
This incorporates:
2015-03-19 fdopendir: port better to MinGW
2015-03-18 fdopendir: fix typo in comment
2015-02-24 glob, etc.: port to MSVC v18 on MS-Windows 8.1
* lib/dirent.in.h, lib/fdopendir.c: Update from gnulib.
* lib/dirfd.c, m4/dirfd.m4: New files from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
This attempts to repair problems introduced by the bad merge
5491fd1098. The easiest way for me
to fix the badly-merged gnulib files was to run
'admin/merge-gnulib', so I did that, which also imported the
following changes:
* build-aux/update-copyright, m4/gnulib.m4:
Update from gnulib, incorporating:
2015-01-15 time: port to MinGW32 3.21
2015-01-15 update-copyright: apply to self
2015-01-11 update-copyright: recognize groff's \(co marker
These are dates that admin/update-copyright did not update, or
updated incorrectly. Also, back out the copyright-date change to
doc/misc/texinfo.tex, as upstream hasn't updated that date yet.
2014-12-20 utimens: remove unnecessary assert
2014-12-16 stdalign: port better to HP compilers
2014-12-16 stdalign: work around Apple GCC 4.0 bug
* lib/stdalign.in.h, lib/utimens.c, m4/stdalign.m4: Update from gnulib.
* admin/merge-gnulib (GNULIB_MODULES): Add stddef, for max_align_t.
* lib/gnulib.mk: Regenerate.
* src/alloc.c (XMALLOC_BASE_ALIGNMENT): Use max_align_t instead of
a hack involving a union.
2014-12-12 stddef: support C11's max_align_t
2014-12-08 apply _GL_ATTRIBUTE_PURE to some inline functions
2014-12-02 support GNU format printf and scanf on mingw
* doc/misc/texinfo.tex, lib/stat-time.h, lib/stddef.in.h:
* lib/timespec.h, m4/extensions.m4, m4/stddef_h.m4, m4/stdio_h.m4:
Update from gnulib.
* lib/gnulib.mk: Regenerate.
2014-11-14 extern-inline: update commentary about GCC bugs
2014-11-06 unistd: port to iOS
2014-11-04 update from texinfo
* doc/misc/texinfo.tex, lib/unistd.in.h, m4/extern-inline.m4:
Update from gnulib.
It's not safe to call qsort or qsort_r, since they have undefined
behavior if the user-specified predicate is not a total order.
Also, watch out for garbage-collection while sorting vectors.
* admin/merge-gnulib (GNULIB_MODULES): Add vla.
* configure.ac (qsort_r): Remove, as we no longer use qsort-like
functions.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/vla.h, m4/vararrays.m4: New files, copied from gnulib.
* lib/stdlib.in.h, m4/stdlib_h.m4: Sync from gnulib, incorporating:
2014-08-29 qsort_r: new module, for GNU-style qsort_r
The previous two files' changes are boilerplate generated by
admin/merge-gnulib, and should not affect Emacs.
* src/fns.c: Include <vla.h>.
(sort_vector_predicate) [!HAVE_QSORT_R]: Remove.
(sort_vector_compare): Remove, replacing with ....
(inorder, merge_vectors, sort_vector_inplace, sort_vector_copy):
... these new functions.
(sort_vector): Rewrite to use the new functions.
GCPRO locals, since the predicate can invoke the GC.
Since it's in-place return void; caller changed.
(merge): Use 'inorder', for clarity.
Fixes: debbugs:18361
This fix relies on having the 'fchdir' function, and on having
"." be searchable (or at least readable, on platforms lacking O_SEARCH),
but that's good enough to handle the vast majority of cases and the
remaining folks can just live with the annoyance of file systems
that occasionally can't be unmounted.
* configure.ac (fchdir): New function to check for.
* lib/save-cwd.c: Copy from gnulib, except omit the part that
allocates memory, since that can cause problems in Emacs.
* lib/save-cwd.h: Copy from gnulib.
Fixes: debbugs:18232
This incorporates:
2014-08-07 getdtablesize: fall back on sysconf (_SC_OPEN_MAX)
2014-08-05 sys_select: fix FD_ZERO problem on Solaris 10
* lib/getdtablesize.c, lib/sys_select.in.h: Update from gnulib.
This fixes a bug with the shell freezing. See:
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17598#185
Merge from gnulib, incorporating:
2014-05-31 dup2, fcntl, fcntl-h: port to AIX 7.1
* lib/fcntl.in.h, m4/dup2.m4, m4/fcntl.m4:
Update from gnulib.
This incorporates:
2014-06-02 acl: apply pure attribute to two functions
2014-06-01 gnulib-common.m4: add _GL_UNUSED_LABEL
2014-05-31 dup2, fcntl, fcntl-h: port to AIX 7.1
2014-05-30 ftoastr: work around compiler bug in IBM xlc 12.1
* lib/acl-internal.h, lib/fcntl.in.h, lib/ftoastr.h:
* m4/dup2.m4, m4/fcntl.m4, m4/gnulib-common.m4:
Update from gnulib.
This doesn't fix Bug#17598, but it does fix a regression since Emacs
built with xlc until recently, and perhaps it'll help us fix Bug#17598.
* configure.ac (GC_SETJMP_WORKS): Define for AIX, too.
Merge from gnulib, incorporating:
2014-05-30 ftoastr: work around compiler bug in IBM xlc 12.1
* lib/ftoastr.c: Update from gnulib.
* src/alloc.c (gdb_make_enums_visible): Remove FLOAT_TO_STRING_BUFSIZE.
* src/conf_post.h (FLEXIBLE_ARRAY_MEMBER) [__IBMC__]: Don't define to empty.
* src/lisp.h (FLOAT_TO_STRING_BUFSIZE): Make it a macro, instead of an enum,
to work around a compiler bug in IBM xlc 12.1.
This incorporates:
2014-01-23 pthread: work around winpthread header pollution on mingw
* lib/time.in.h: Update from gnulib.
* doc/misc/texinfo.tex: Update from texinfo.
This incorporates:
2014-01-20 stdalign: port to HP-UX compilers
2014-01-16 strtoimax: port to platforms lacking 'long long'
2014-01-16 update from texinfo
* doc/misc/texinfo.tex, lib/stdalign.in.h, lib/strtoimax.c:
Update from gnulib.
2013-12-17 gettimeofday: port recent C++ fix to Emacs
2013-12-17 gettimeofday: fix C++ crosscompilation
2013-12-17 qacl: port to Windows better
* lib/file-has-acl.c, lib/time.in.h, m4/gettimeofday.m4, m4/time_h.m4:
Update from gnulib.
* lib/gnulib.mk: Regenerate.
This scorches the earth and waits for spring;
see Ted Zlatanov and Stefan Monnier in
<http://lists.gnu.org/archive/html/emacs-devel/2013-12/msg00323.html>.
* configure.ac (with_openssl_default, HAVE_LIB_CRYPTO): Remove.
Do not say whether Emacs is configured to use a crypto library,
since it's no longer an option.
(gl_CRYPTO_CHECK): Define a dummy.
* lib/gl_openssl.h, m4/gl-openssl.m4: Remove.
* admin/merge-gnulib: Remove lib/gl_openssh.h and m4/gl-openssl.m4.
* src/Makefile.in (LIB_CRYPTO): Remove.
(LIBES): Don't use it.
On commonly used platform libcrypto uses architecture-specific
assembly code, which is significantly faster than the C code we
were using. See Pádraig Brady's note in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-12/msg00000.html>.
Merge from gnulib, incorporating:
2013-12-07 md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT
2013-12-07 md5, sha1, sha256, sha512: add 'auto', and set-default method
2013-12-04 include_next: minimize code duplication
2013-12-03 md5, sha1, sha256, sha512: support mandating use of openssl
2013-12-02 md5, sha1, sha256, sha512: use openssl routines if available
* configure.ac (--without-all): Set with_openssl_default too.
Use gl_SET_CRYPTO_CHECK_DEFAULT to default to 'auto'.
(HAVE_LIB_CRYPTO): New var.
Say whether Emacs is configured to use a crypto library.
* lib/gl_openssl.h, m4/absolute-header.m4, m4/gl-openssl.m4:
New files, copied from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/md5.c, lib/md5.h, lib/sha1.c, lib/sha1.h:
* lib/sha256.c, lib/sha256.h, lib/sha512.c, lib/sha512.h:
* m4/include_next.m4, m4/md5.m4, m4/sha1.m4, m4/sha256.m4, m4/sha512.m4:
Update from gnulib.
* src/Makefile.in (LIB_CRYPTO): New macro.
(LIBES): Use it.
This incorporates:
2013-11-08 extern-inline: port better to OS X 10.9
2013-11-08 fpending: fix regression on DragonFly BSD
* lib/fpending.h, m4/extern-inline.m4, m4/fpending.m4:
Update from gnulib.
Especially, C99 prohibits nesting a struct X inside struct Y if
struct X has a flexible array member.
Also, merge from gnulib, incorporating:
2013-11-03 intprops: port to Oracle Studio c99
* lib/intprops.h: Update from gnulib.
* src/alloc.c (struct sdata): New type.
(sdata): Implement in terms of struct sdata.
Remove u member; all uses replaced by next_vector, set_next_vector.
(SDATA_SELECTOR, SDATA_DATA, SDATA_DATA_OFFSET): Adjust to sdata change.
(SDATA_DATA_OFFSET): Now a constant, not a macro.
(struct sblock): Rename first_data member to data, which is now
a flexible array member. All uses changed.
(next_vector, set_next_vector, large_vector_vec): New functions.
(vector_alignment): New constant.
(roundup_size): Make it a multiple of ALIGNOF_STRUCT_LISP_VECTOR, too.
(struct large-vector): Now merely a NEXT member, since the old approach
ran afoul of stricter C99. All uses changed to use
large_vector_vec or large_vector_offset.
(large_vector_offset): New constant.
* src/dispnew.c: Include tparam.h, for tgetent.
Do not include term.h; no longer needed.
* src/gnutls.c (Fgnutls_boot): Don't continue after calling a _Noreturn.
* src/lisp.h (ENUM_BF) [__SUNPRO_C && __STDC__]: Use unsigned int.
(struct Lisp_Vector): Use a flexible array member for contents,
instead of a union with a member that is an array of size 1.
All uses changed.
(ALIGNOF_STRUCT_LISP_VECTOR): New constant, to make up for the
fact that the struct no longer contains a union.
(struct Lisp_Misc_Any, struct Lisp_Marker, struct Lisp_Overlay)
(struct Lisp_Save_Value, struct Lisp_Free):
Use unsigned, not int, for spacers, to avoid c99 warning.
(union specbinding): Use unsigned, not bool, for bitfield, as
bool is not portable to pre-C99 hosts.
This incorporates:
2013-10-14 acl: allow cross-compilation to Gentoo
2013-10-18 extern-inline: make safe for -Wundef usage
2013-09-30 fpending: use pure+const function attrs
* lib/fpending.h, m4/acl.m4, m4/extern-inline.m4: Update from gnulib.
This incorporates:
2013-10-10 strtoumax: port to Solaris 8
2013-10-09 strtoimax, strtoumax: port to HP-UX 11.11
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/inttypes.in.h, lib/strtoimax.c, m4/inttypes.m4, m4/strtoimax.m4:
* m4/strtoumax.m4:
Update from gnulib.
Do this by using the Gnulib modules for this.
This should generate faster code on non-GCC, non-MSC platforms,
and make the code a bit more portable, at least in theory.
* admin/merge-gnulib (GNULIB_MODULES): Add count-one-bits
and count-trailing-zeros.
* lib/count-one-bits.c, lib/count-one-bits.h:
* lib/count-trailing-zeros.c, lib/count-trailing-zeros.h:
* m4/count-one-bits.m4, m4/count-trailing-zeros.m4:
New files, copied from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* nt/gnulib.mk: Merge changes from lib/gnulib.mk.
* src/data.c: Include <count-one-bits.h>, <count-trailing-zeros.h>.
(USE_MSC_POPCOUNT, POPCOUNT_STATIC_INLINE)
(NEED_GENERIC_POPCOUNT, popcount_size_t_generic)
(popcount_size_t_msc, popcount_size_t_gcc):
Remove; now done by Gnulib.
(popcount_size_t): Now a macro that defers to Gnulib.
(count_trailing_zero_bits): Return int, for consistency with
Gnulib and because Emacs prefers signed to unsigned int.
Don't assume that size_t is either unsigned int or unsigned long
or unsigned long long.
(size_t_to_host_endian): Do not assume that size_t is either
exactly 32 or exactly 64 bits wide.
* src/lisp.h (BITS_PER_SIZE_T): Define consistently with BITS_PER_LONG
etc., so that it's now an enum constant, not a macro.
No need to assume that it's either 32 or 64.
Fixes: debbugs:15550
* src/conf_post.h (__has_builtin, assume): Remove; gnulib now does these.
* src/lisp.h: Include <verify.h>, for 'assume'.
This also incorpoprates:
2013-10-02 verify: new macro 'assume'
2013-09-26 dup2, dup3: work around another cygwin crasher
2013-09-26 getdtablesize: work around cygwin issue
This incorporates:
2013-09-24 manywarnings: enable nicer gcc warning messages
2013-09-23 warnings: port --enable-gcc-warnings to Solaris Studio 12.3
2013-09-21 timespec: use the new TIMESPEC_RESOLUTION elsewhere
* configure.ac (WERROR_CFLAGS): Omit -fdiagnostics-show-option
and -funit-at-a-time, since manywarnings does that for us now.
This incorporates the following changes:
2013-09-19 stdio: OS X port of putc_unlocked + extern inline
2013-09-19 signal: OS X port of sigaddset etc. + extern inline
2013-09-19 extern-inline: do not always suppress extern inline on OS X
2013-09-17 getgroups: statement without effect
2013-08-28 headers: check that _GL_INLINE_HEADER_BEGIN is defined
This portability layer is no longer needed, since Emacs has been
using struct timespec as a portability layer for some time.
Merge from gnulib, incorporating:
2013-08-27 timespec: new convenience constants and function
* src/atimer.h, src/buffer.h, src/dispextern.h, src/xgselect.h:
Include <time.h> rather than "systime.h"; that's all that's needed now.
* src/dispnew.c: Include <timespec.h> rather than "systime.h";
that's all that's needed now.
* src/systime.h (EMACS_TIME): Remove. All uses changed to struct timespec.
(EMACS_TIME_RESOLUTION): Remove. All uses changed to
TIMESPEC_RESOLUTION.
(LOG10_EMACS_TIME_RESOLUTION): Remove. All uses changed to
LOG10_TIMESPEC_RESOLUTION.
(EMACS_SECS, emacs_secs_addr): Remove. All uses changed to tv_sec.
(EMACS_NSECS): Remove. All uses changed to tv_nsec.
(make_emacs_time): Remove. All used changed to make_timespec.
(invalid_timespec): Rename from invalid_emacs_time. All uses changed.
(current_timespec): Rename from current_emacs_time. All uses changed.
(add_emacs_time): Remove. All uses changed to timespec_add.
(sub_emacs_time): Remove. All uses change dot timespec_sub.
(EMACS_TIME_SIGN): Remove. All uses changed to timespec_sign.
(timespec_valid_p): Rename from EMACS_TIME_VALID_P. All uses changed.
(EMACS_TIME_FROM_DOUBLE): Remove. All uses changed to dtotimespec.
(EMACS_TIME_TO_DOUBLE): Remove. All uses changed to timespectod.
(current_timespec): Rename from current_emacs_time. All uses changed.
(EMACS_TIME_EQ, EMACS_TIME_LT, EMACS_TIME_LE): Remove. All uses
changed to timespec_cmp.
* src/xgselect.c: Include <timespec.h>, since our .h files don't.
Gnulib's emulation of mkostemp doesn't have races that Emacs's does.
* configure.ac (mkostemp): Remove check for this function;
gnulib does the check now.
(mkstemp): Remove check for this no-longer-used function.
* lib/mkostemp.c, lib/secure_getenv.c, lib/tempname.c, lib/tempname.h:
* m4/mkostemp.m4, m4/secure_getenv.m4, m4/tempname.m4:
New files, copied from Gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Add mkostemp.
* lib-src/movemail.c (main):
* lib-src/update-game-score.c (write_scores):
Use mkostemp (which now works on all platforms, due to changes
in the portability layer) rather than mktemp (which has a race)
or mkstemp (which we no longer bother with).
* src/callproc.c (create_temp_file):
* src/filelock.c (create_lock_file):
Assume mkostemp, since it's now provided by Gnulib.
Fixes: debbugs:15015
* lib/binary-io.c, lib/binary-io.h: New files.
Merge from gnulib, incorporating:
2013-07-09 accept4, dup3, pipe2: port to Cygwin
* lib/pipe2.c: Update from gnulib, as part of this merge.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
Fixes: debbugs:14821
* lib/ignore-value.h: Remove this gnulib-imported file.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Remove ignore-value.
* src/callproc.c (child_setup) [!DOS_NT]: Don't try to stuff an error
number into an exit status. Instead, use EXIT_CANCELED.
(child_setup) [!MSDOS]: Avoid possible deadlock with vfork.
* src/callproc.c (relocate_fd):
* src/emacs.c (close_output_streams, main):
* src/process.c (create_process):
* src/sysdep.c (sys_subshell) [!DOS_NT || !WINDOWSNT]:
Use emacs_perror for simplicity.
* src/callproc.c (relocate_fd, main):
* src/sysdep.c (sys_subshell):
Exit with EXIT_CANCELED etc., not 1, when exec setup fails.
(shut_down_emacs): Use emacs_write, not write.
* src/emacs.c, src/sysdep.c: Don't include <ignore-value.h>.
* src/fileio.c (Fcopy_file, e_write):
* src/nsterm.m (ns_select):
* src/process.c (send_process):
* src/sound.c (vox_write):
Use emacs_write_sig, not emacs_write.
* src/lisp.h (emacs_write_sig, emacs_perror): New decls.
* src/process.h (EXIT_CANCELED), EXIT_CANNOT_INVOKE, EXIT_ENOENT):
New constants.
* src/sysdep.c (emacs_backtrace): Use emacs_write, not ignore_value
of write.
(emacs_full_write): New function.
(emacs_write): Rewrite to use it.
(emacswrite_sig, emacs_perror): New functions.
* src/xrdb.c (fatal): Don't invoke perror, since errno might be garbage.
This simplifies Emacs a bit, since it no longer needs to worry
about closing file descriptors by hand in some cases.
It also fixes some unlikely races. Not all such races, as
libraries often open files internally without setting
close-on-exec, but it's an improvement.
* admin/merge-gnulib (GNULIB_MODULES): Add fcntl, pipe2.
(GNULIB_TOOL_FLAGS): Avoid binary-io, close. Do not avoid fcntl.
* configure.ac (mkostemp): New function to check for.
(PTY_OPEN): Pass O_CLOEXEC to posix_openpt.
* lib/fcntl.c, lib/getdtablesize.c, lib/pipe2.c, m4/fcntl.m4:
* m4/getdtablesize.m4, m4/pipe2.m4: New files, taken from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* nt/gnulib.mk: Remove empty gl_GNULIB_ENABLED_verify section;
otherwise, gnulib-tool complains given close-on-exec changes.
* nt/inc/ms-w32.h (pipe): Remove.
* nt/mingw-cfg.site (ac_cv_func_fcntl, gl_cv_func_fcntl_f_dupfd_cloexec)
(gl_cv_func_fcntl_f_dupfd_works, ac_cv_func_pipe2): New vars.
* src/alloc.c (valid_pointer_p) [!WINDOWSNT]:
* src/callproc.c (Fcall_process) [!MSDOS]:
* src/emacs.c (main) [!DOS_NT]:
* src/nsterm.m (ns_term_init):
* src/process.c (create_process):
Use 'pipe2' with O_CLOEXEC instead of 'pipe'.
* src/emacs.c (Fcall_process_region) [HAVE_MKOSTEMP]:
* src/filelock.c (create_lock_file) [HAVE_MKOSTEMP]:
Prefer mkostemp with O_CLOEXEC to mkstemp.
* src/callproc.c (relocate_fd) [!WINDOWSNT]:
* src/emacs.c (main): Use F_DUPFD_CLOEXEC, not plain F_DUPFD.
No need to use fcntl (..., F_SETFD, FD_CLOEXEC), since we're
now using pipe2.
* src/filelock.c (create_lock_file) [! HAVE_MKOSTEMP]:
Make the resulting file descriptor close-on-exec.
* src/lisp.h, src/lread.c, src/process.c (close_load_descs, close_process_descs):
* src/lread.c (load_descriptor_list, load_descriptor_unwind):
Remove; no longer needed. All uses removed.
* src/process.c (SOCK_CLOEXEC): Define to 0 if not supplied by system.
(close_on_exec, accept4, process_socket) [!SOCK_CLOEXEC]:
New functions.
(socket) [!SOCK_CLOEXEC]: Supply a substitute.
(Fmake_network_process, Fnetwork_interface_list):
(Fnetwork_interface_info, server_accept_connection):
Make newly-created socket close-on-exec.
* src/sysdep.c (emacs_open, emacs_fopen):
Make new-created descriptor close-on-exec.
* src/w32.c (fcntl): Support F_DUPFD_CLOEXEC well enough for Emacs.
* src/w32.c, src/w32.h (pipe2): Rename from 'pipe', with new flags arg.
Fixes: debbugs:14803
2013-05-15 manywarnings: update for GCC 4.8.0
2013-05-15 stdio: use __REDIRECT for fwrite, fwrite_unlocked
2013-05-15 sig2str, stdio, warnings: port to clang
* configure.ac: Remove -with-acl option, since Gnulib does that for
us now.
(LIBACL_LIBS): Remove; no longer needed.
* lib/Makefile.am (CLEANFILES, SUFFIXES): New (empty) macros,
for the benefit of the new ACL implementation.
* lib/makefile.w32-in (GNULIBOBJS): Add $(BLD)/acl-errno-valid.$(O).
($(BLD)/acl-errno-valid.$(O)): New rule.
* lib/acl-errno-valid.c, lib/acl-internal.h, lib/acl.h:
* lib/acl_entries.c, lib/errno.in.h, lib/file-has-acl.c:
* lib/qcopy-acl.c, lib/qset-acl.c, m4/acl.m4, m4/errno_h.m4:
New files, taken from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Add qacl.
(GNULIB_TOOL_FLAGS): Do not avoid errno.
* etc/NEWS: Emacs is no longer limited to POSIX ACLs. --disable-acl,
not --without-acl, since we're now using Gnulib's implementation.
* nt/config.nt (HAVE_ACL_SET_FILE): Rename from HAVE_POSIX_ACL.
* nt/inc/ms-w32.h (EOPNOTSUPP): New macro.
* src/Makefile.in (LIB_ACL): New macro.
(LIBACL_LIBS): Remove.
(LIBES): Use LIB_ACL, not LIBACL_LIBS.
* src/fileio.c: Include <acl.h>.
Use HAVE_ACL_SET_FILE rather than HAVE_POSIX_ACL.
(ACL_NOT_WELL_SUPPORTED): Remove. All uses replaced by
!acl_errno_valid.
(Fcopy_file) [!WINDOWSNT]: Use qcopy_acl instead of rolling
it ourselves.
Fixes: debbugs:14295
This bug was introduced by my 2013-02-25 change that simplified
data_start configuration. Without this change, on GNU/Linux
an Emacs configured with --enable-profiling fails immediately
due to a profiler signal.
* configure.ac (LD_SWITCH_SYSTEM_TEMACS): Append -pg if profiling
and if not on GNU/Linux or FreeBSD.
* lib/Makefile.am (AM_CFLAGS): Add $(PROFILING_CFLAGS), so that
lib/*.o is profiled too.
* src/Makefile.in: Compile with $(PROFILING_CFLAGS), but do not link
with these flags. On platforms where special flags are needed
when linking temacs, the flags are now in LD_SWITCH_SYSTEM_TEMACS.
(ALL_CFLAGS): Remove $(PROFILING_CFLAGS).
(.c.o, .m.o): Compile with $(PROFILING_CFLAGS).
Fixes: debbugs:13783
* admin/CPP-DEFINES (BSD_SYSTEM, HAVE_FSYNC): Remove.
* admin/merge-gnulib (GNULIB_MODULES): Add fsync, fdatasync.
* configure.ac (BSD_SYSTEM, BSD_SYSTEM_AHB): Remove; no longer needed.
(fsync): Remove check; now done by gnulib.
* lib/fdatasync.c, lib/fsync.c, m4/fdatasync.m4, m4/fsync.m4:
New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib-src/Makefile.in (LIB_FDATASYNC): New macro.
(emacsclient${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
This incorporates:
2013-03-12 mktime: fix configure typo
2013-03-11 regex: port to mingw's recent addition of undeclared alarm
2013-03-11 putenv: avoid compilation warning on mingw
2013-03-11 unistd: don't prevent Tru64 Unix from using gnulib strtod.
2013-02-21 putenv: port better to native Windows
2013-02-18 extern-inline: avoid compilation error with HP-UX cc
2013-02-14 putenv: fix heap corruption with mixed putenv/_putenv
On my host, this speeds up directory-files-and-attributes by a
factor of 3, when applied to Emacs's src directory.
These functions are standardized by POSIX and are common these
days; fall back on a (slower) gnulib implementation if the host
is too old to supply them.
* .bzrignore: Add lib/dirent.h.
* lib/Makefile.am (libgnu_a_SOURCES): Add openat-die.c, save-cwd.c.
* lib/careadlinkat.c, lib/careadlinkat.h: Merge from gnulib,
incorporating: 2013-01-29 careadlinkat: do not provide careadlinkatcwd.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/dirent.in.h, lib/fdopendir.c, lib/fstatat.c, lib/openat-priv.h:
* lib/openat-proc.c, lib/openat.h, m4/dirent_h.m4, m4/fdopendir.m4:
* m4/fstatat.m4: New files, from gnulib.
* lib/openat-die.c, lib/save-cwd.c, lib/save-cwd.h: New files.
These last three are specific to Emacs and are not copied from gnulib.
They are simpler than the gnulib versions and are tuned for Emacs.
* admin/merge-gnulib (GNULIB_MODULES): Add fdopendir, fstatat, readlinkat.
(GNULIB_TOOL_FLAGS): Do not avoid at-internal, openat-h.
Avoid dup, open, opendir.
* nt/inc/sys/stat.h (fstatat):
* nt/inc/unistd.h (readlinkat): New decls.
* src/conf_post.h (GNULIB_SUPPORT_ONLY_AT_FDCWD): Remove.
* src/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.
* src/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.
* src/filelock.c (current_lock_owner): Use emacs_readlinkat
rather than emacs_readlink.
* src/lisp.h (emacs_readlinkat): New decl.
(READLINK_BUFSIZE, emacs_readlink): Remove.
* src/sysdep.c: Do not include <allocator.h>, <careadlinkat.h>.
(emacs_norealloc_allocator, emacs_readlink): Remove.
This stuff is moved to fileio.c.
* src/w32.c (fstatat, readlinkat): New functions.
(careadlinkat): Don't check that fd == AT_FDCWD.
(careadlinkatcwd): Remove; no longer needed.
Fixes: debbugs:13539
* admin/merge-gnulib (GNULIB_MODULES): Add putenv, unsetenv.
* lib/putenv.c, lib/unsetenv.c, m4/putenv.m4, m4/setenv.m4:
New files, copied automatically from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/alloc.c (xputenv): New function.
* src/dbusbind.c (Fdbus_init_bus):
* src/emacs.c (main):
* src/xterm.c (x_term_init):
Use xputenv instead of setenv or putenv, to detect memory exhaustion.
* src/editfns.c (initial_tz): Move static var decl up.
(tzvalbuf_in_environ): New static var.
(init_editfns): Initialize these two static vars.
(Fencode_time): Don't assume arbitrary limit on EMACS_INT width.
Save old TZ value on stack, if it's small.
(Fencode_time, set_time_zone_rule): Don't modify 'environ' directly;
instead, use xputenv+unsetenv to set and restore TZ.
(environbuf): Remove static var. All uses removed.
(Fset_time_zone_rule): Do not save TZ and environ;
no longer needed here.
(set_time_zone_rule_tz1, set_time_zone_rule_tz2) [LOCALTIME_CACHE]:
Move to inside set_time_zone_rule; they don't need file scope any more.
(set_time_zone_rule): Maintain the TZ=value string separately.
(syms_of_editfns): Don't initialize initial_tz;
init_editfns now does it.
* src/emacs.c (dump_tz) [HAVE_TZSET]: Now const.
* src/lisp.h (xputenv): New decl.
Fixes: debbugs:13070
Exceptions: do not assume SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN,
SIGTTOU, SIGUSR1, SIGUSR2, as Microsoft platforms lack these.
* admin/CPP-DEFINES (SIGALRM, SIGCHLD, SIGHUP, SIGKILL, SIGPIPE, SIGQUIT):
Remove.
(SIGTRAP): Remove this one too, as config.h no longer defines it.
* admin/merge-gnulib (GNULIB_MODULES): Add sig2str.
* configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
Use SIGCHLD rather than SIGCLD.
* lib/sig2str.c, lib/sig2str.h, m4/sig2str.m4: New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/makefile.w32-in (GNULIBOBJS): Add $(BUILD)/sig2str.$(O).
* src/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.
* src/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.
* src/syssignal.h (EMACS_KILLPG): Remove.
All uses replaced by 'kill' with a negative pid.
(SIGCHLD): Remove definition, as we now assume SIGCHLD.
* src/w32proc.c (sys_kill): Support negative pids compatibly with POSIX.
Fixes: debbugs:13026
* 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
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.
* .bzrignore: Add lib/fcntl.h.
* configure.ac (euidaccess): Remove check; gnulib does this for us now.
(gl_FCNTL_O_FLAGS): Define a dummy version.
* lib/at-func.c, lib/euidaccess.c, lib/faccessat.c, lib/fcntl.in.h:
* lib/getgroups.c, lib/group-member.c, lib/root-uid.h:
* lib/xalloc-oversized.h, m4/euidaccess.m4, m4/faccessat.m4:
* m4/fcntl_h.m4, m4/getgroups.m4, m4/group-member.m4:
New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Add faccessat.
(GNULIB_TOOL_FLAGS): Avoid at-internal, fchdir, malloc-posix,
openat-die, openat-h, save-cwd. Do not avoid fcntl-h.
Omit gnulib's m4/fcntl-o.m4.
* nt/inc/ms-w32.h (AT_FDCWD, AT_EACCESS): New symbols.
(access): Remove.
(faccessat): New macro.
* src/Makefile.in (LIB_EACCESS): New macro.
(LIBES): Use it.
* src/callproc.c (init_callproc):
* src/charset.c (init_charset):
* src/fileio.c (check_existing, check_executable, check_writable)
(Ffile_readable_p):
* src/lread.c (openp, load_path_check):
* src/process.c (allocate_pty):
* src/xrdb.c (file_p):
Use effective UID when checking permissions, not real UID.
* src/callproc.c (init_callproc):
* src/charset.c (init_charset):
* src/lread.c (load_path_check, init_lread):
Test whether directories are accessible, not merely whether they exist.
* src/conf_post.h (GNULIB_SUPPORT_ONLY_AT_FDCWD): New macro.
* src/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.
* src/xrdb.c (file_p): Use file_directory_p.
* src/lisp.h (file_directory_p, file_accessible_directory_p): New decls.
* src/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.
* src/nsterm.m (ns_term_init): Remove unnecessary call to file-readable
that merely introduced a race.
* src/process.c, src/sysdep.c, src/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.
* src/w32.c (sys_faccessat): Rename from sys_access and switch to
faccessat's API. All uses changed.
* src/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.
Fixes: debbugs:12632
* admin/merge-gnulib (GNULIB_MODULES): Add close-stream.
* lib/close-stream.c, lib/close-stream.h, lib/fpending.c
* lib/fpending.h, m4/close-stream.m4, m4/fpending.m4:
New files, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/emacs.c: Include <close-stream.h>.
(close_output_streams): New function.
(main): Pass it to atexit, so that Emacs closes stdout and stderr
and handles errors appropriately.
(Fkill_emacs): Don't worry about flushing, as close_output_stream
does that now.
Fixes: debbugs:9574
This should fix an OS X build problem reported by Ivan Andrus in
<http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00671.html>.
* admin/merge-gnulib (GNULIB_MODULES): Add timer-time.
* configure.ac (gl_THREADLIB): Define to empty, since Emacs
does threads its own way.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* m4/timer_time.m4: New file, from gnulib.
* src/atimer.c (alarm_timer, alarm_timer_ok, set_alarm, init_atimer):
Use HAVE_TIMER_SETTIME, not SIGEV_SIGNAL, to decide whether to
call timer_settime.
Merge from gnulib, incorporating:
2012-08-24 execinfo: port to FreeBSD
2012-08-22 execinfo: new module
* admin/merge-gnulib (GNULIB_MODULES): Add execinfo.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/execinfo.c, lib/execinfo.in.h, m4/execinfo.m4: New files.
* src/alloc.c [ENABLE_CHECKING]: Include <execinfo.h>.
(die) [ENABLE_CHECKING]: Print a backtrace if available.
* src/Makefile.in (LIB_EXECINFO): New macro.
(LIBES): Use it.
* nt/inc/ms-w32.h: Move here from ../src/s.
* nt/config.nt (config_opsysfile): Change to <ms-w32.h>.
* s/ms-w32.h: Move to ../nt/inc.
* src/makefile.w32-in (TAGS, TAGS-gmake, MS_W32_H):
Update for new ms-w32.h location.
* lib-src/makefile.w32-in (MS_W32_H): Update for new ms-w32.h location.
* lib/makefile.w32-in (MS_W32_H): Update for new ms-w32.h location.
* lisp/emacs-lisp/authors.el (authors-renamed-files-alist): Add ms-w32.h.
2012-08-01 extern-inline: new module
2012-08-01 stat-time, timespec, u64, utimens: use extern-inline
* lib/stat-time.c, lib/utimespec.c, lib/u64.c, m4/extern-inline.m4:
New files. The new .c files are for instantiating extern inline
functions.
Fixes: debbugs:12116
* lisp/org/ob-lilypond.el (ly-w32-ly-path): Rename from ly-win32-ly-path.
(ly-w32-pdf-path): Rename from ly-win32-pdf-path.
(ly-w32-midi-path): Rename from ly-win32-midi-path.
(ly-determine-ly-path, ly-determine-pdf-path, ly-determine-midi-path):
Check for "windows-nt", not "win32", in system-type.
* src/regex.c (MAX_BUF_SIZE): Remove some incorrect and
long-ago-commented-out code that talks about "WIN32".
* src/w32heap.h (OS_WINDOWS_95): Rename from OS_WIN95.
All uses changed.
* .bzrignore: Add lib/stdalign.h.
* config.bat: Do not set NO_DECL_ALIGN; no longer needed.
Copy lib/stdalign.in.h to lib/stdalign.in-h as needed.
* configure.ac (HAVE_ATTRIBUTE_ALIGNED): Remove the code that
fiddles with this, as gnulib now does this for us.
* admin/merge-gnulib: Add environ, stdalign.
* m4/environ.m4: New file, from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/stdalign.in.h, m4/stdalign.m4: New files, from gnulib.
* sed2v2.inp (HAVE_ATTRIBUTE_ALIGNED): Remove edit.
* sedlibmk.inp (STDALIGN_H, @GL_GENERATE_STDALIGN_H_TRUE@)
(GL_GENERATE_STDALIGN_H_FALSE): New edits.
* nt/config.nt (HAVE_ATTRIBUTE_ALIGNED): Remove.
* src/alloc.c (XMALLOC_BASE_ALIGNMENT, GC_POINTER_ALIGNMENT, pure_alloc):
Simplify by using alignof.
(pure_alloc) [! USE_LSB_TAG]: Don't over-align EMACS_INT values.
* src/lisp.h: Include <stdalign.h>.
(GCALIGNMENT): New macro and constant.
(DECL_ALIGN): Remove. All uses replaced by alignas (GCALIGNMENT).
(USE_LSB_TAG): ifdef on alignas, not on DECL_ALIGN.
(stdalign): New macro, if not already defined.
Merge from gnulib to make "#define unix" unnecessary, incorporating:
2012-07-10 getloadavg: clean out old Emacs and Autoconf cruft
2012-07-09 getopt: Simplify after Emacs changed.
* src/s/aix4-2.h (unix): Remove; no longer needed.
