1. 15 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Port better to POSIX hosts lacking _setjmp. · 0328b6de
      Paul Eggert authored
      * configure.ac (HAVE__SETJMP, HAVE_SIGSETJMP): New symbols.
      (_setjmp, _longjmp): Remove.
      * src/lisp.h: Include <setjmp.h> here, since we use its symbols here.
      All instances of '#include <setjmp.h>' removed, if the
      only reason for the instance was because "lisp.h" was included.
      (sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols.
      Unless otherwise specified, replace all uses of jmp_buf, _setjmp,
      and _longjmp with the new symbols.  Emacs already uses _setjmp if
      available, so this change affects only POSIXish hosts that have
      sigsetjmp but not _setjmp, such as some versions of Solaris and
      Unixware.  (Also, POSIX-2008 marks _setjmp as obsolescent.)
      * src/image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros.
      (png_load_body) [HAVE_PNG]:
      (PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]:
      (PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]:
      Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp,
      since PNG requires jmp_buf.  This is the only exception to the
      general rule that we now use sys_setjmp and sys_longjmp.
      This exception is OK since this code does not change the signal
      mask or longjmp out of a signal handler.
      
      Fixes: debbugs:12446
      0328b6de
  2. 14 Sep, 2012 2 commits
    • Paul Eggert's avatar
      Fix glitches with 'configure --without-sync-input'. · 2af03429
      Paul Eggert authored
      * configure.ac (--without-sync-input): Fix typo in usage message.
      * alloc.c [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]:
      Include "syssignal.h", for 'main_thread'.
      2af03429
    • Paul Eggert's avatar
      * configure.ac: Port to hosts lacking gtk. · e3141fcf
      Paul Eggert authored
      (PKG_CHECK_MODULES): Capture pkg-config diagnostics
      better, in particular, problems in invoking pkg-config itself.
      This is useful on hosts that don't have pkg-config.
      (GTK_MODULES): Do not exit 'configure' simply because gtk3
      and gtk2 are both missing.  Problem found on Solaris 8.
      e3141fcf
  3. 13 Sep, 2012 3 commits
    • Jan Djärv's avatar
      * configure.ac: Report Gtk+ 3 as GTK. · 4d0b77fc
      Jan Djärv authored
      4d0b77fc
    • Jan Djärv's avatar
      * configure.ac: Reorder Xaw3d messages. · 2c484e75
      Jan Djärv authored
      2c484e75
    • Paul Eggert's avatar
      Simplify SIGIO usage. · 4a4bbad2
      Paul Eggert authored
      The code that dealt with SIGIO was crufty and confusing, e.g., it
      played tricks like "#undef SIGIO" but these tricks were not used
      consistently.  Simplify mostly by not #undeffing standard symbols,
      e.g., use "defined USABLE_SIGIO" (our symbol, which we can define
      or not as we please) rather than "defined SIGIO" (standard symbol
      that we probably shouldn't #undef).
      * configure.ac (NO_TERMIO, BROKEN_FIONREAD, BROKEN_SIGAIO)
      (BROKEN_SIGPOLL, BROKEN_SIGPTY): Remove.
      (USABLE_FIONREAD, USABLE_SIGIO): New symbols.  All uses of
      'defined SIGIO' replaced with 'defined USABLE_SIGIO', with no need
      to #undef SIGIO now (which was error-prone).  Likewise, all uses
      of 'defined FIONREAD' replaced with 'defined USABLE_FIONREAD'.
      * src/admin/CPP_DEFINES (BROKEN_SIGAIO, BROKEN_SIGIO, BROKEN_SIGPOLL)
      (BROKEN_SIGPTY, NO_TERMIO): Remove.
      * src/conf_post.h [USG5_4]: Do not include <sys/wait.h> here.
      Modules that need it can include it.
      [USG5_4 && emacs]: Likewise, do not include the streams stuff here.
      * src/dispextern.h (ignore_sigio): New decl.
      * src/emacs.c (shut_down_emacs): Invoke unrequest_sigio
      unconditionally, since it's now a no-op if !USABLE_SIGIO.
      * src/emacs.c (shut_down_emacs):
      * src/keyboard.c (kbd_buffer_store_event_hold):
      Use ignore_sigio rather than invoking 'signal' directly.
      * src/keyboard.c (USABLE_FIONREAD && USG5_4): Include <sys/filio.h>,
      for FIONREAD.
      (FIONREAD, SIGIO): Do not #undef.
      (tty_read_avail_input): Use #error rather than a syntax error.
      * src/process.c [USG5_4]: Include <sys/stream.h> and <sys/stropts.h>,
      for I_PIPE, used by SETUP_SLAVE_PTY.
      (DATAGRAM_SOCKETS): Simplify defn, based on USABLE_FIONREAD.
      * src/sysdep.c (croak): Remove; no longer needed.  This bit of
      temporary code, with Fred N. Fish's comment that it's temporary,
      has been in Emacs since at least 1992!
      (init_sigio, reset_sigio, request_sigio, unrequest_sigio):
      Arrange for them to be no-ops in all cases when ! USABLE_SIGIO.
      * src/syssignal.h (croak): Remove decl.
      (SIGIO, SIGPOO, SIGAIO, SIGPTY): Do not #undef; that's too fragile.
      * src/systty.h [!NO_TERMIO]: Do not include <termio.h>; no longer needed
      now that we're termios-only.
      (FIONREAD, ASYNC) [BROKEN_FIONREAD]: Do not #undef.
      * src/term.c (dissociate_if_controlling_tty): Use #error rather than
      a run-time error.
      
      Fixes: debbugs:12408
      4a4bbad2
  4. 12 Sep, 2012 1 commit
  5. 11 Sep, 2012 2 commits
    • Glenn Morris's avatar
      Be more explicit about some Makefile dependencies · 9d9edd4b
      Glenn Morris authored
      * Makefile.in (install-arch-dep, install-arch-indep, install-doc):
      Be more explicit about dependencies, for parallel `make install'.
      
      It is not so unreasonable to run `make -j# install' from a clean state
      for a self-contained NS build, where the "installation" happens within
      the build tree.
      9d9edd4b
    • Paul Eggert's avatar
      Simplify, document, and port floating-point. · c990426a
      Paul Eggert authored
      The porting part of this patch fixes bugs on non-IEEE platforms
      with frexp, ldexp, logb.
      * admin/CPP-DEFINES (HAVE_CBRT, HAVE_LOGB, logb): Remove.
      * configure.ac (logb, cbrt): Do not check for these functions,
      as they are not being used.
      * doc/lispref/numbers.texi (Float Basics, Arithmetic Operations, Math Functions):
      Document that / and mod (with floating point arguments), along
      with asin, acos, log, log10, expt and sqrt, return special values
      instead of signaling exceptions.
      (Float Basics): Document that logb operates on the absolute value
      of its argument.
      (Math Functions): Document that (log ARG BASE) also returns NaN if
      BASE is negative.  Document that (expt X Y) returns NaN if X is a
      finite negative number and Y a finite non-integer.
      * etc/NEWS: Document NaNs versus signaling-error change.
      * src/data.c, src/lisp.h (Qdomain_error, Qsingularity_error, Qunderflow_error):
      Now static.
      * src/floatfns.c: Simplify discussion of functions that Emacs doesn't
      support, by removing commented-out code and briefly listing the
      C89 functions excluded.  The commented-out stuff was confusing
      maintenance, e.g., we thought we needed cbrt but it was commented out.
      (logb): Remove decl; no longer needed.
      (isfinite): New macro, if not already supplied.
      (isnan): Don't replace any existing macro.
      (Ffrexp, Fldexp): Define even if !HAVE_COPYSIGN, as frexp and ldexp
      are present on all C89 platforms.
      (Ffrexp): Do not special-case zero, as frexp does the right thing
      for that case.
      (Flogb): Do not use logb, as it doesn't have the desired meaning
      on hosts that use non-base-2 floating point.  Instead, stick with
      frexp, which is C89 anyway.  Do not pass an infinity or a NaN to
      frexp, to avoid getting an unspecified result.
      c990426a
  6. 10 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Improve robustness of 'make bootstrap'. · b8b0239f
      Paul Eggert authored
      Run autogen.sh after bootstrap-clean, to avoid bzr pull issues.
      * INSTALL, README: Document autogen.sh.
      * Makefile.in (Makefile): Mark it as precious, since it's updated
      atomically.
      (MAKE_CONFIG_STATUS): New macro.
      (config.status, bootstrap): Use it.  This causes 'make bootstrap'
      to run config.status with the --recheck option, which is more
      appropriate for a bootstrap.
      (bootstrap): Run autogen.sh right after cleaning.  Don't worry
      about failures due to missing tools.
      * autogen.sh: Exit with status 101 when failing due to missing tools.
      * make-dist: Distribute autogen.sh.
      
      Fixes: debbugs:12376
      b8b0239f
  7. 09 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Assume C89 or later for math functions. · f6196b87
      Paul Eggert authored
      This simplifies the code, and makes it a bit smaller and faster,
      and (most important) makes it easier to clean up signal handling
      since we can stop worring about floating-point exceptions in
      library code.  That was a problem before C89, but the problem
      went away many years ago on all practical Emacs targets.
      * configure.ac (frexp, fmod): Remove checks for these functions,
      as we now assume them.
      (FLOAT_CHECK_DOMAIN, HAVE_INVERSE_HYPERBOLIC, NO_MATHERR)
      (HAVE_EXCEPTION):
      Remove; no longer needed.
      * admin/CPP-DEFINES (HAVE_FMOD, HAVE_FREXP, FLOAT_CHECK_DOMAIN)
      (HAVE_INVERSE_HYPERBOLIC, NO_MATHERR): Remove.
      * src/data.c, src/image.c, src/lread.c, src/print.c:
      Don't include <math.h>; no longer needed.
      * src/data.c, src/floatfns.c (IEEE_FLOATING_POINT): Don't worry that it
      might be autoconfigured, as that never happens.
      * src/data.c (fmod):
      * src/doprnt.c (DBL_MAX_10_EXP):
      * src/print.c (DBL_DIG):
      Remove.  C89 or later always defines these.
      * src/floatfns.c (HAVE_MATHERR, FLOAT_CHECK_ERRNO, FLOAT_CHECK_DOMAIN)
      (in_float, float_error_arg, float_error_arg2, float_error_fn_name)
      (arith_error, domain_error, domain_error2):
      Remove all this pre-C89 cruft.  Do not include <errno.h> as that's
      no longer needed -- we simply return what C returns.  All uses removed.
      (IN_FLOAT, IN_FLOAT2): Remove.  All uses replaced with
      the wrapped code.
      (FLOAT_TO_INT, FLOAT_TO_INT2, range_error, range_error2):
      Remove.  All uses expanded, as these macros are no longer used
      more than once and are now more trouble than they're worth.
      (Ftan): Use tan, not sin / cos.
      (Flogb): Assume C89 frexp.
      (fmod_float): Assume C89 fmod.
      (matherr) [HAVE_MATHERR]: Remove; no longer needed.
      (init_floatfns): Remove.  All uses removed.
      f6196b87
  8. 07 Sep, 2012 2 commits
    • Paul Eggert's avatar
      More signal-handler cleanup. · 1a4f1e9b
      Paul Eggert authored
      * configure.ac (FLOAT_CHECK_DOMAIN): Comment fix (Bug#12327).
      * src/floatfns.c: Comment fix.
      * src/lisp.h (force_auto_save_soon): Declare regardless of SIGDANGER.
      SIGDANGER might not be in scope so "#ifdef SIGDANGER" is not right,
      and anyway the declaration is harmless even if SIGDANGER is not defined.
      * src/syssignal.h (SIGIO): Also #undef if (! defined FIONREAD ||
      defined BROKEN_FIONREAD).  systty.h formerly did this, but other
      source files not surprisingly expected syssignal.h to define, or
      not define, SIGIO, and it's cleaner to do it that way, for consistency.
      Include <sys/ioctl.h>, for FIONREAD.
      * src/systty.h (SIGIO): Do not #undef here; it's now syssignal.h's job.
      This eliminates a problem whereby other files mysteriously had
      to include "syssignal.h" before including "systty.h" if they
      wanted to use "#ifdef SIGIO".
      1a4f1e9b
    • Paul Eggert's avatar
      Signal-handler cleanup. · 2fe28299
      Paul Eggert authored
      Emacs's signal handlers were written in the old 4.2BSD style with
      sigblock and sigmask and so forth, and this led to some
      inefficiencies and confusion.  Rewrite these to use
      pthread_sigmask etc. without copying signal sets around.  Also,
      get rid of the confusing macros 'SIGNAL_THREAD_CHECK' and
      'signal', and instead use functions that do not attempt to take
      over the system name space.  This patch causes Emacs's text
      segment to shrink by 0.7% on my platform, Fedora 17 x86-64.
      * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
      Adjust to syssignal.h changes.
      (SIGNAL_H_AB): Remove; no longer needed.
      * src/alloc.c, src/emacsgtkfixed.c, src/nsfns.m, src/widget.c, src/xmenu.c:
      Do not include <signal.h> or "syssignal.h", as these
      modules do not use signals.
      * src/atimer.c, src/callproc.c, src/data.c, src/dispnew.c, src/emacs.c:
      * src/floatfns.c, src/gtkutil.c, src/keyboard.c, src/process.c, src/sound.c:
      * src/sysdep.c, src/term.c, src/xterm.c:
      Do not include <signal.h>, as "syssignal.h" does that for us now.
      * src/atimer.c (sigmask_atimers): New function.
      (block_atimers, unblock_atimers): New functions,
      replacing the old macros BLOCK_ATIMERS and UNBLOCK_ATIMERS.
      All uses replaced.
      * src/conf_post.h [SIGNAL_H_AHB]: Do not include <signal.h>;
      no longer needed here.
      * src/emacs.c (main): Inspect existing signal handler with sigaction,
      so that there's	no need to block and unblock SIGHUP.
      * src/sysdep.c (struct save_signal): New member 'action', replacing
      old member 'handler'.
      (save_signal_handlers, restore_signal_handlers):
      Use sigaction instead of 'signal' to save and restore.
      (get_set_sighandler, set_sighandler) [!WINDOWSNT]:
      New function.  All users of 'signal' modified to use set_sighandler
      if they're writeonly, and to use sys_signal if they're read+write.
      (emacs_sigaction_init, forwarded_signal): New functions.
      (sys_signal): Remove.  All uses replaced by calls to sigaction
      and emacs_sigaction_init, or by direct calls to 'signal'.
      (sys_sigmask) [!__GNUC__]: Remove; no longer needed.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove;
      all uses replaced by pthread_sigmask etc. calls.
      * src/syssignal.h: Include <signal.h>.
      (emacs_sigaction_init, forwarded_signal): New decls.
      (SIGMASKTYPE): Remove.  All uses replaced by its definiens, sigset_t.
      (SIGEMPTYMASK): Remove; all uses replaced by its definiens, empty_mask.
      (sigmask, sys_sigmask): Remove; no longer needed.
      (sigpause): Remove.  All uses replaced by its definiens, sigsuspend.
      (sigblock, sigunblock, sigfree):
      (sigsetmask) [!defined sigsetmask]:
      Remove.  All uses replaced by pthread_sigmask.
      (signal): Remove.  Its remaining uses (with SIG_DFL and SIG_IGN)
      no longer need to be replaced, and its typical old uses
      are now done via emacs_sigaction_init and sigaction.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove decls.
      (sys_sigdel): Remove; unused.
      (NSIG): Remove a FIXME; the code's fine.  Remove an unnecessary ifdef.
      
      Fixes: debbugs:12327
      2fe28299
  9. 04 Sep, 2012 2 commits
    • Paul Eggert's avatar
      Simplify redefinition of 'abort' (Bug#12316). · 1088b922
      Paul Eggert authored
      Do not try to redefine the 'abort' function.  Instead, redo
      the code so that it calls 'emacs_abort' rather than 'abort'.
      This removes the need for the NO_ABORT configure-time macro
      and makes it easier to change the abort code to do a backtrace.
      * configure.ac (NO_ABRT): Remove.
      * admin/CPP-DEFINES (NO_ABORT): Remove.
      * nt/inc/ms-w32.h (w32_abort) [HAVE_NTGUI]: Remove.
      * src/.gdbinit: Just stop at emacs_abort, not at w32_abort or abort.
      * src/emacs.c (abort) [!DOS_NT && !NO_ABORT]:
      Remove; sysdep.c's emacs_abort now takes its place.
      * src/lisp.h (emacs_abort): New decl.  All calls from Emacs code to
      'abort' changed to use 'emacs_abort'.
      * src/msdos.c (dos_abort) [defined abort]: Remove; not used.
      (abort) [!defined abort]: Rename to ...
      (emacs_abort): ... new name.
      * src/sysdep.c (emacs_abort) [!HAVE_NTGUI]: New function, taking
      the place of the old 'abort' in emacs.c.
      * src/w32.c, src/w32fns.c (abort): Do not #undef.
      * src/w32.c (emacs_abort): Rename from w32_abort.
      1088b922
    • Paul Eggert's avatar
      * configure.ac (_setjmp, _longjmp): Check by compiling · 7b6c362e
      Paul Eggert authored
      instead of by guessing.  The guesses were wrong for
      recent versions of Solaris, such as Solaris 11.
      7b6c362e
  10. 03 Sep, 2012 2 commits
  11. 02 Sep, 2012 1 commit
  12. 01 Sep, 2012 2 commits
  13. 26 Aug, 2012 1 commit
  14. 25 Aug, 2012 3 commits
  15. 24 Aug, 2012 1 commit
  16. 22 Aug, 2012 1 commit
  17. 21 Aug, 2012 1 commit
  18. 20 Aug, 2012 1 commit
  19. 19 Aug, 2012 1 commit
    • Paul Eggert's avatar
      Merge from gnulib. · 562d4436
      Paul Eggert authored
      2012-08-19 ignore-value, stat-time, timespec: omit AC_C_INLINE
      2012-08-19 mktime, sys_select: avoid 'static inline'
      2012-08-19 gnulib-tool: Fix indentation.
      562d4436
  20. 18 Aug, 2012 1 commit
  21. 17 Aug, 2012 1 commit
  22. 15 Aug, 2012 1 commit
  23. 14 Aug, 2012 2 commits
  24. 10 Aug, 2012 2 commits
    • Juanma Barranquero's avatar
      * lib/makefile.w32-in (STAT_TIME_H): New macro. · 57239922
      Juanma Barranquero authored
      (FTOASTR_C, $(BLD)/stat-time.$(O), $(BLD)/timespec.$(O))
      ($(BLD)/u64.$(O)): Update dependencies.
      57239922
    • Glenn Morris's avatar
      Move DIRECTORY_SEP from lisp.h to config.h · 9374581a
      Glenn Morris authored
      * configure.ac (DIRECTORY_SEP): Move here from src/lisp.h.
      
      * src/lisp.h (DIRECTORY_SEP): Let configure set it.
      
      * nt/config.nt (DIRECTORY_SEP): Move here from src/lisp.h.
      
      * lib-src/movemail.c (DIRECTORY_SEP, IS_DIRECTORY_SEP):
      * lib-src/make-docfile.c (DIRECTORY_SEP, IS_DIRECTORY_SEP):
      * lib-src/emacsclient.c (DIRECTORY_SEP, IS_DIRECTORY_SEP, IS_DEVICE_SEP):
      Remove (they are in config.h now).
      9374581a
  25. 08 Aug, 2012 1 commit
  26. 07 Aug, 2012 2 commits
  27. 06 Aug, 2012 1 commit