* configure.ac (newlocale): Check for this, not for uselocale.
* src/sysdep.c (LC_COLLATE, LC_COLLATE_MASK, freelocale, locale_t)
(newlocale, wcscoll_l): Define substitutes for platforms that
lack them, so as to simplify the mainline code.
(str_collate): Simplify the code by assuming the above definitions.
Use wcscoll_l, not uselocale, as uselocale is too fragile. For
example, the old version left the Emacs in the wrong locale if
wcscoll reported an error. Use 'int', not ptrdiff_t, for the int
result. Report an error if newlocale fails.
Fixes: debbugs:18051
* configure.ac: Check for sigaltstack and related sigaction
support. Unconditionally check for sigsetjmp and siglongjmp.
(HAVE_STACK_OVERFLOW_HANDLING): Define if we can support it.
* src/lisp.h (toplevel) [HAVE_STACK_OVERFLOW_HANDLING]: Declare
siglongjmp point to transfer control from SIGSEGV handler.
* src/keyboard.c (return_to_command_loop, recover_top_level_message)
[HAVE_STACK_OVERFLOW_HANDLING]: New variables.
(regular_top_level_message): New variable.
(command_loop) [HAVE_STACK_OVERFLOW_HANDLING]: Handle non-local
exit from SIGSEGV handler and adjust message displayed by Vtop_level
if appropriate.
(syms_of_keyboard): DEFVAR Vtop_level_message and initialize
new variables described above.
* src/sysdep.c [HAVE_SYS_RESOURCE_H]: Include sys/resource.h as such.
(stack_grows_down, sigsegv_stack, handle_sigsegv)
[HAVE_STACK_OVERFLOW_HANDLING]: New variables and function.
(init_sigsegv): New function.
(init_signals): Use it.
* lisp/startup.el (normal-top-level): Use top-level-message.
* configure.ac: Check also for the uselocale function.
* src/fns.c (Fstring_collate_lessp, Fstring_collate_equalp): New DEFUNs.
* src/sysdep.c (str_collate): New function. (Bug#18051)
configure.ac: Accept "*-mingw*", not just "*-mingw32", as
canonical name of a MinGW build, because using MSYS2 'uname'
produces "MINGW64".
src/Makefile.in (emacs$(EXEEXT)): Retry deletion of bootstrap-emacs
if the initial "rm -f" fails. This is for MinGW builds, where
MS-Windows will not allow deleting the executable file of a
running program.
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.
* README: ``MSDOG'' becomes ``MS-DOS''.
* lisp/arc-mode.el: Fix a couple of ``MS-DOG''s missed in the previous
commit.
* lisp/file-mode.el: ditto.
* src/editfns.c: Fix a couple of ``MS-DOG''s missed in the previous commit.
* src/xfaces.c: ditto.
* configure.ac (HAVE_TIMERFD): Define only if TFD_CLOEXEC works,
since the code leaked file descriptors to children when !TFD_CLOEXEC.
(HAVE_TIMERFD_CLOEXEC): Remove; no longer used.
* m4/clock_time.m4 (gl_CLOCK_TIME): Don't check for clock_getres.
This reverts the previous change to this file, so it matches
gnulib again.
* src/atimer.c (TIMERFD_CREATE_FLAGS): Remove; we now assume TFD_CLOEXEC.
(alarm_timer, alarm_timer_ok, set_alarm, init_atimer):
Fall back on timer_create if timerfd_create fails at runtime.
(resolution) [HAVE_CLOCK_GETRES]: Remove; we now rely on the
kernel primitives to do resolution. All uses removed.
(timerfd) [!HAVE_TIMERFD]: Define to be -1, for convenience.
(turn_on_atimers): Clear timer_create-based timers too,
for consistency.
* configure.ac (toplevel): Check whether GNU/Linux-specific
timerfd functions and macros are available.
* m4/clock_time.m4 (gl_CLOCK_TIME): Check for clock_getres as well.
* src/atimer.c (toplevel) [HAVE_TIMERFD]: Include sys/timerfd.h.
(toplevel): Rename alarm_timer_ok to special_timer_available.
[HAVE_TIMERFD]: Declare timerfd.
[HAVE_CLOCK_GETRES]: Declare resolution.
(start_atimer) [HAVE_CLOCK_GETRES]: Round up timestamp to
system timer resolution.
(set_alarm) [HAVE_TIMERFD]: Use timerfd_settime.
(timerfd_callback) [HAVE_TIMERFD]: New function.
(atimer_result, debug_timer_callback, Fdebug_timer_check)
[ENABLE_CHECKING]: New function for the sake of automated tests.
(init_atimer) [HAVE_TIMERFD]: Setup timerfd.
[HAVE_CLOCK_GETRES]: Likewise for system timer resolution.
[ENABLE_CHECKING]: Defsubr test function.
* src/atimer.h (timerfd_callback) [HAVE_TIMERFD]: Add prototype.
* src/lisp.h (add_timer_wait_descriptor) [HAVE_TIMERFD]: Likewise.
* src/process.c (add_timer_wait_descriptor) [HAVE_TIMERFD]: New function.
* test/automated/timer-tests.el (timer-tests-debug-timer-check): New test.
* Makefile.in (ACLOCAL_INPUTS): Add all m4/*.m4 files.
* src/Makefile.in (top_srcdir): New var.
(ntsource, lispsource, ALL_CFLAGS, gl-stamp, emacs.res):
Use '$(top_srcdir)' instead of '$(srcdir)/..';
its expansion is a bit shorter.
(../config.status): Actually build config.status instead of
just complaining.
(ACLOCAL_INPUTS, AUTOCONF_INPUTS):
New macros, copied and relocated from ../Makefile.in.
($(top_srcdir)/aclocal.m4, $(top_srcdir)/configure, config.in)
(../config.status, Makefile): New dependencies and rules,
copied with relocation from ../Makefile.in. This should be more
likely to rebuild the build machinery properly if you do a 'make'
in the src directory.
Linux 'sysinfo' function and 'struct sysinfo' type.
* src/alloc.c (Fmemory_info): New function.
* lisp/files.el (warn-maybe-out-of-memory): New function.
(find-file-noselect): Use it.
* Makefile.in (src): No more need to pass BOOTSTRAPEMACS.
* src/Makefile.in (.el.elc): Replace suffix rule with pattern rule.
(%.elc): New pattern rule, with order-only prerequisite.
($(lisp)): No more need to depend on BOOTSTRAPEMACS.
($(lispsource)/loaddefs.el): Use an order-only prerequisite
in place of BOOTSTRAPEMACS.
Fixes: debbugs:2151
* Makefile.in (epaths-force): Don't allow ':' in directories whose
names go into a colon-separated path.
* configure.ac: Fail if submake fails.
Fixes: debbugs:17278
* configure.ac (CFLAGS): With link time optimization,
use -ffat-lto-objects if supported; otherwise Emacs won't
build with GCC 4.9.0.
Fixes: debbugs:17806
* Makefile.in: Use `make -C' rather than `cd && make' throughout.
* lib-src/Makefile.in (../lib/libgnu.a): Use `make -C' rather than `cd && make'.
* lisp/Makefile.in (leim, semantic): Use `make -C' rather than `cd && make'.
* lwlib/Makefile.in ($(globals_h)): Use `make -C' rather than `cd && make'.
* src/Makefile.in: Use `make -C' rather than `cd && make' throughout.
* configure.ac (_REENTRANT): Define on Solaris if HAVE_PTHREAD.
This ports part of the recent AIX fix to Solaris. It is needed
for the same reason that _THREAD_SAFE is needed on AIX, e.g., to
make sure that each thread has its own 'errno'.
Fixes: debbugs:17598
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.
* configure.ac (emacs_check_gnu_make): New shell function.
Use it to avoid duplication when checking for GNU Make.
It's OK for 'configure' to use shell functions these days,
as long as we follow the advice in the 'Shell Functions'
section of the Autoconf manual.
It's never been anything more than pointless complexity
* configure.ac (INFO_EXT, INFO_OPTS): Remove output variables.
* Makefile.in (INFO_EXT): Remove and replace by ".info" throughout.
* doc/emacs/Makefile.in (INFO_EXT): Remove and replace by ".info" throughout.
(INFO_OPTS): Set directly rather than with configure.
* doc/lispintro/Makefile.in (INFO_EXT): Remove and replace by ".info" throughout.
(INFO_OPTS): Set directly rather than with configure.
* doc/lispref/Makefile.in (INFO_EXT): Remove and replace by ".info" throughout.
(INFO_OPTS): Set directly rather than with configure.
* doc/misc/Makefile.in (INFO_EXT): Remove and replace by ".info" throughout.
(INFO_OPTS): Set directly rather than with configure.
* configure.ac (with_xpm_set): New shell var.
(_THREAD_SAFE): Define on AIX if HAVE_PTHREAD.
(with_xpm): Default to 'no' on AIX.
(LIBXPM): Append -lXpm if -lXaw is also used, as the latter
requires the former on AIX.
Fixes: debbugs:17598
* configure.ac (AC_PROG_MAKE_SET): Define a dummy.
(MAKE): Set it to GNU Make, if one can be found.
Search PATH for 'make', 'gmake', 'gnumake'.
This works better on platforms like AIX, where GNU Make
might be in /opt/freeware/bin/make, and reside
behind /usr/bin/make in the PATH.
* nt/inc/ms-w32.h (POLL_FOR_INPUT): Likewise.
* src/keyboard.c, src/process.c: Do not define POLL_FOR_INPUT here
because it will be defined in generated config.h if needed.
