Do all putenv calls before Emacs creates any threads.
Use a safer way to modify the TZ environment variable in the
presence of multiple threads. For further thread-safety,
prefer localtime_r and gmtime_r to localtime and gmtime,
and prefer struct tm's tm_gmtoff (if available) to calling
both localtime_r and gmtime_r.
* configure.ac (LOCALTIME_CACHE): Remove.
We needn't worry about SunOS 4 any more; Sun dropped support in 2003.
All uses of LOCALTIME_CACHE removed. This simplifies the fix.
(tzalloc): Add check for this function.
* admin/merge-gnulib (GNULIB_MODULES): Add time_r, since Emacs now
calls localtime_r and gmtime_r directly.
* src/dbusbind.c (Fdbus__init_bus): Move xputenv call from here ...
(init_dbusbind): ... to this new function.
* src/emacs.c (main) [HAVE_DBUS]: Call it before creating threads.
* src/xterm.c (x_term_init): Move xputenv call from here ...
(init_xterm): ... to this new function.
* src/emacs.c (main) [USE_GTK]: Call it before creating threads.
* src/editfns.c (HAVE_TM_GMTOFF): Default to false.
(dump_tz_string): New constant.
(init_editfns): Use it. This centralizes the dump_tz stuff.
Call set_time_zone_rule here, so that its xputenv is done
before Emacs goes multithreaded.
(mktime_z) [!HAVE_TZALLOC]: New function, which is typically
thread-safe enough for Emacs.
(format_time_string, Fdecode_time, Fcurrent_time_string)
(Fcurrent_time_zone):
Prefer localtime_r and gmtime_r, which are more thread-safe, to
localtime and gmtime. Remove now-unnecessary calls to block_input.
(tm_gmtoff): New static function.
(Fdecode_time, Fcurrent_time_zone): Use it.
(Fencode_time): Use mktime_z, for better thread-safety.
(set_time_zone_rule): Now static. Rewrite to be mostly thread-safe,
i.e., not quite thread-safe but good enough for Emacs typical usage.
Do not reclaim storage that is in the environment; let it leak.
Always call tzset, since localtime_r does not.
* src/emacs.c (dump_tz, Fdump_emacs) [HAVE_TZSET]: Remove dump_tz stuff.
This is now done in init_editfns.
* src/systime.h (mktime_z, timezone_t, tzalloc, tzfree) [!HAVE_TZALLOC]:
New macros and declarations, for platforms lacking tzalloc & friends.
Fixes: debbugs:8705
(all): Use unifiles rather than charprop.el.
(FORCE): New variable and phony rule.
(${unidir}/charprop.el): Respect FORCE.
(unifiles): New rule.
* src/Makefile.in ($(srcdir)/macuvs.h)
($(lispsource)/international/charprop.el): Add explicit FORCE.
Fixes: debbugs:18489
admin/unidata/unidata-gen.el (unidata-check): Bring this function up
to date with the currently supported methods of generating Unicode
property tables. Add a comment with a description how to invoke
the check. Update the copyright years in the reference to the
Unicode data files we use.
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
* notes/exit-value: Remove specific discussion of VMS.
* doc/emacs/programs.texi (Program Modes): Don't advertise VMS DCL support
any more.
* doc/misc/ediff.texi (Merging and diff3): Don't mention lack of support
for VMS diff, we no longer support VMS.
* lisp/progmodes/ada-mode.el:
* lisp/net/tramp.el (tramp-handle-file-symlink-p):
* lisp/net/tramp-ftp.el (tramp-ftp-file-name-handler): Remove a comment
about VMS, which we no longer support.
* lisp/progmodes/ada-xref.el (ada-xref-current): Remove mention of VMS,
and fix a FIXME, using convert-standard-filename in place of
removed ada-convert-file-name.
* lisp/url/url-handlers.el: Remove a comment about VMS, which we no longer
support.
* admin/merge-gnulib (GNULIB_MODULES): Add binary-io. It was already
present implicitly; this just makes the dependence explicit.
* lib-src/etags.c, lib-src/hexl.c, lib-src/make-docfile.c:
Include binary-io.h instead of fcntl.h and/or io.h.
(main): Use set_binary_mode or SET_BINARY
in place of handcrafted code.
* lib-src/etags.c (main) [DOS_NT]:
* lib-src/movemail.c (main) [WINDOWSNT]:
Don't mess with _fmode.
* lib-src/etags.c (main, process_file_name, analyse_regex):
Use fopen/popen's "b" flag instead.
* lib-src/movemail.c (main, popmail): Use open/lk_open/mkostemp's O_BINARY
instead.
* src/callproc.c (create_temp_file): Use mkostemp's O_BINARY flag.
* src/emacs.c [MSDOS]:
* src/emacs.c (main) [DOS_NT]: Don't mess with _fmode.
(main) [MSDOS]: Use SET_BINARY instead of setmode.
* src/minibuf.c: Include binary-io.h instead of fcntl.h.
(read_minibuf_noninteractive):
Use set_binary_mode instead of handcrafted code.
Don't call emacs_set_tty if emacs_get_tty failed.
* src/sysdep.c, src/systty.h (emacs_get_tty): Return int, not void.
* src/sysdep.c (emacs_open, emacs_pipe): Use O_BINARY.
* src/w32.c (pipe2): Adjust eassert to include O_BINARY.
Fixes: debbugs:18006
* admin/unidata/Makefile.in (${top_srcdir}/src/macuvs.h): Make and load .elc.
(.el.elc): Replace with pattern rule.
(%.elc): New.
(unidata.txt): Use $<.
(compile): Remove.
(${DSTDIR}/charprop.el): Use order-only prereqs rather than a sub-make.
* admin/unidata/IVD_Sequences.txt: New file.
* admin/unidata/Makefile.in (${top_srcdir}/src/macuvs.h): New rule.
(all): Build it.
(extraclean): Remove it.
* admin/unidata/README: Mention BidiMirroring.txt and IVD_Sequences.txt.
* admin/unidata/copyright.html: Update to current version from Unicode
Consortium.
* admin/unidata/uvs.el: Rename from admin/mac/uvs.el.
(uvs-print-table-ivd): Output a header in the form that
unidata-gen.el generates.
* lisp/international/README: Refer to the Unicode Terms of Use rather
than copying it bodily here, as that simplifies maintenance.
* src/Makefile.in ($(srcdir)/macuvs.h): New rule.
* src/macuvs.h: Use automatically-generated header.
