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* Fix ChangeLog typos.Juanma Barranquero2012-10-171-4/+4
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* Apply program-transform-name etc in more places (bug#12536#34)Glenn Morris2012-10-151-0/+6
| | | | | | | | | * Makefile.in (install-man, install-etc): Apply $TRANSFORM. (clean): Delete etc/emacs.tmpdesktop. * .bzrignore: Add etc/emacs.tmpdesktop. * etc/NEWS: Mention this. Unrelated copyedits.
* merge trunkKenichi Handa2012-10-111-0/+9
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| * Changelog entries for cygw32Daniel Colascione2012-10-071-0/+9
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* | Re-generate charsets. Adjust for the change of admin/charset/mapfiles/*.gzKenichi Handa2012-10-111-0/+4
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* Check for OSX >= 10.4 to match what the maunal says and what we actually ↵Jan Djärv2012-10-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | support. * configure.ac: Check that OSX is 10.4 or newer. * etc/NEWS (NextStep/OSX port changes): OSX 10.4 or newer is required. * src/nsfns.m (Fns_list_services): Remove comment and check for OSX < 10.4. (ns_do_applescript): Remove check for >= MAC_OS_X_VERSION_10_4. * src/nsimage.m (setPixmapData, getPixelAtX, setAlphaAtX): Remove onTiger. * src/nsmenu.m (fillWithWidgetValue:): Remove code for < MAC_OS_X_VERSION_10_2. * src/nsselect.m (ns_string_from_pasteboard): Remove check for >= MAC_OS_X_VERSION_10_4. * src/nsterm.h (MAC_OS_X_VERSION_10_3, onTiger): Remove. (EmacsApp): Remove check for >= MAC_OS_X_VERSION_10_4. (struct nsfont_info): Remove check for >= MAC_OS_X_VERSION_10_3.
* Improve sys_siglist detection.Paul Eggert2012-10-061-0/+6
| | | | | | | | | | | * configure.ac (sys_siglist): Look for its decl in <signal.h>. Otherwise, it's not found in either Fedora 17 or Solaris 11. * src/sysdep.c (sys_siglist, init_signals): Use _sys_siglist if it's defined as a macro, as is done in Solaris. (sys_siglist_entries): New macro. (save_strsignal): Use it. * src/syssignal.h (safe_strsignal): Now ATTRIBUTE_CONST, to pacify GCC 4.7.2 on Fedora 17 with the fixed sys_siglist detection.
* Move ChangeLog entry to proper file.Paul Eggert2012-10-041-11/+0
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* Merge from gnulib.Paul Eggert2012-10-041-0/+9
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* Port timers to OpenBSD, plus check for timer failures.Paul Eggert2012-10-031-0/+13
| | | | | | | | | | | | OpenBSD problem reported by Han Boetes. * profiler.c (setup_cpu_timer): Check for failure of timer_settime and/or setitimer. (Fprofiler_cpu_stop): Don't assume HAVE_SETITIMER. * syssignal.h (HAVE_ITIMERSPEC): New macro. This is for platforms like OpenBSD, which has timer_settime but does not declare it. OpenBSD does not define SIGEV_SIGNAL, so use that when deciding whether to use itimerspec-related primitives. All uses of HAVE_TIMER_SETTIME replaced with HAVE_ITIMERSPEC.
* Merge from gnulib.Paul Eggert2012-09-291-0/+5
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* Link with LIB_TIMER_TIME as needed.Paul Eggert2012-09-271-0/+1
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* Check more robustly for timer_settime.Paul Eggert2012-09-261-0/+8
| | | | | | | | | | | | | 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.
* * Makefile.in (bootstrap): Set MAKEFILE_NAME when building Makefile,Paul Eggert2012-09-231-0/+5
| | | | to avoid problems with recursion when using GNU make.
* * Makefile.in (bootstrap): Simplify build procedure.Paul Eggert2012-09-221-0/+4
| | | | | Suggested by Wolfgang Jenker in <http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00456.html>.
* Merge from gnulib.Paul Eggert2012-09-221-0/+5
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* New feature: set optimal slice from BoundingBox information.Tassilo Horn2012-09-191-0/+5
| | | | | | | | | | | | | * doc-view.el (doc-view-mode-map): Add keybinding. (doc-view-menu): Add menu entry. (doc-view-set-slice): Adapt docstring. (doc-view-get-bounding-box, doc-view-guess-paper-size) (doc-view-scale-bounding-box) (doc-view-set-slice-from-bounding-box): New functions. (doc-view-paper-sizes): New defvar. * doc/emacs/misc.texi (DocView Slicing): Document new slice from BoundingBox feature.
* * configure.ac (HAVE_GTK): Mention if we use GTK2 or GTK3.Jan Djärv2012-09-181-0/+4
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* * Makefile.in (bootstrap): Revert last change. Run config.statusAndreas Schwab2012-09-181-0/+6
| | | | | after config.status --recheck, run configure from $(srcdir). (config.status): Run configure from $(srcdir).
* * Makefile.in: Run autogen/copy_autogen if autogen.sh fails,Paul Eggert2012-09-171-0/+8
| | | | | | | | | | to create 'configure'; problem reported by Andreas Schwab in <http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00438.html>. * autogen.sh: Exit with status 1 when failing due to missing tools, reverting the 2012-09-10 change to this file. * autogen/copy_autogen: Fail if one of the subsidiary actions fail. Use 'cp -f' for the build-aux files, since the destinations are typically read-only.
* * Makefile.in: Fix build error on FreeBSD.Paul Eggert2012-09-171-0/+9
| | | | | | | | | | ($(MAKEFILE_NAME)): Pass MAKE='$(MAKE)' to config.status's env. Suggested by Wolfgang Jenker in <http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00430.html>. (MAKE_CONFIG_STATUS): Remove. Remaining use expanded. This undoes part of the 2012-09-10 patch. (bootstrap): Run ./configure, rather than trying to run config.status if it exists. That builds src/epaths.h more reliably.
* Remove no-longer-needed Solaris 2.4 vfork bug workaround.Paul Eggert2012-09-161-0/+6
| | | | | | | | | | | | | The workaround was for improving performance on Solaris 2.4, but is getting in the way now. Emacs will still work if someone is still running Solaris 2.4 in a museum somewhere; Sun dropped support for Solaris 2.4 in 2003. * configure.ac (ac_cv_func_vfork_works): Default to 'no' on Solaris 2.4, so that AC_FUNC_VFORK doesn't think vfork works. * src/callproc.c (Fcall_process) [HAVE_WORKING_VFORK]: * src/process.c (create_process) [HAVE_WORKING_VFORK]: Omit now-unnecessary workaround for the Solaris 2.4 vfork bug, since Emacs no longer uses vfork on that platform.
* Reduce the number of versioned files storing the short copyright stringGlenn Morris2012-09-161-0/+5
| | | | | | | | | | | | | | | | | | | * configure.ac (copyright): New output variable. (COPYRIGHT): New AC_DEFINE. * admin/admin.el (set-copyright): No more need to set copyrights for nextstep, or .c files. Add configure.ac and config.nt. * lib-src/ebrowse.c (version): * lib-src/etags.c (print_version): Use COPYRIGHT. * nextstep/templates/Info-gnustep.plist.in: * nextstep/templates/InfoPlist.strings.in: * nextstep/templates/Info.plist.in: Let configure set copyright. * nt/config.nt (COPYRIGHT): New. * src/emacs.c: Use COPYRIGHT.
* Remove configure's --without-sync-input option.Paul Eggert2012-09-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When auditing signal-handling in preparation for cleaning it up, I found that SYNC_INPUT has race conditions and would be a real pain to fix. Since it's an undocumented and deprecated configure-time option, now seems like a good time to remove it. Also see <http://bugs.gnu.org/11080#16>. * configure.ac (SYNC_INPUT, BROKEN_SA_RESTART): Remove. * admin/CPP-DEFINES (BROKEN_SA_RESTART, SA_RESTART): Remove. * etc/TODO (Make SYNC_INPUT the default): Remove, as the code now behaves as if SYNC_INPUT is always true. * src/alloc.c (_bytes_used, __malloc_extra_blocks, _malloc_internal) (_free_internal) [!DOUG_LEA_MALLOC]: Remove decls. (alloc_mutex) [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]: (malloc_hysteresis): (check_depth) [XMALLOC_OVERRUN_CHECK]: (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): (__malloc_hook, __realloc_hook, __free_hook, BYTES_USED) (dont_register_blocks, bytes_used_when_reconsidered) (bytes_used_when_full, emacs_blocked_free, emacs_blocked_malloc) (emacs_blocked_realloc, reset_malloc_hooks, uninterrupt_malloc): [!SYSTEM_MALLOC && !SYNC_INPUT]: Remove. All uses removed. (MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): Use a different implementation, one that depends on whether the new macro XMALLOC_BLOCK_INPUT_CHECK is defined, not on whether SYNC_INPUT is defined. * src/atimer.c (run_timers, handle_alarm_signal): * src/keyboard.c (pending_signal, poll_for_input_1, poll_for_input) (handle_async_input, process_pending_signals) (handle_input_available_signal, init_keyboard): * src/nsterm.m (ns_read_socket): * src/process.c (wait_reading_process_output): * src/regex.c (immediate_quit, IMMEDIATE_QUIT_CHECK): * src/sysdep.c (emacs_sigaction_init) [SA_RESTART]: (emacs_write): * src/xterm.c (XTread_socket): Assume SYNC_INPUT. * src/conf_post.h (SA_RESTART) [IRIX6_5]: Do not #undef. * src/eval.c (handling_signal): Remove. All uses removed. * src/lisp.h (ELSE_PENDING_SIGNALS): Remove. All uses replaced with the SYNC_INPUT version. (reset_malloc_hooks, uninterrupt_malloc, handling_signal): Remove decls. * src/sysdep.c, src/syssignal.h (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]: Now static. Fixes: debbugs:12450
* Add missing nextstep file from previous change.Glenn Morris2012-09-161-1/+1
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* Increase compartmentalization of Nextstep builds rules,Glenn Morris2012-09-161-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and store Emacs version number in fewer versioned files. * configure.ac (ns_appsrc): Use relative names. (ns_frag): Remove. (Info-gnustep.plist, Emacs.desktop, Info.plist, InfoPlist.strings) (nextstep/Makefile): Generate these nextstep files. (SUBDIR_MAKEFILES): Add nextstep. * Makefile.in (clean, distclean, bootstrap-clean): Add nextstep. * make-dist (nextstep/templates): Add directory. (nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj): Remove. (nextstep/Cocoa/Emacs.base/Contents) (nextstep/GNUstep/Emacs.base/Resources): Update contents. * .bzrignore: Add some nextstep files. * admin/admin.el (set-version): No more need to set nextstep versions. (set-copyright): Update for moved nextstep files. * nextstep/Makefile.in: New file. * nextstep/templates: New directory. * nextstep/templates/Emacs.desktop.in, nextstep/templates/Info-gnustep.plist.in: * nextstep/templates/Info.plist.in, nextstep/templates/InfoPlist.strings.in: Move here from various Cocoa/, GNUstep/ locations. Let configure set the version number. * nextstep/Cocoa/Emacs.base/Contents/Info.plist: * nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings: * nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist: * nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop: Move to templates/. * nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj: Remove directory. * src/Makefile.in (ns_appdir, ns_appbindir, ns_appsrc): Remove variables. (ns_frag): Remove. (ns-app): Move here from ns.mk, and simplify. (clean): Simplify nextstep entry. * src/ns.mk: Remove file.
* Port better to POSIX hosts lacking _setjmp.Paul Eggert2012-09-151-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | * 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
* Fix glitches with 'configure --without-sync-input'.Paul Eggert2012-09-141-0/+2
| | | | | | * configure.ac (--without-sync-input): Fix typo in usage message. * alloc.c [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]: Include "syssignal.h", for 'main_thread'.
* * configure.ac: Port to hosts lacking gtk.Paul Eggert2012-09-141-0/+9
| | | | | | | | (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.
* * configure.ac: Report Gtk+ 3 as GTK.Jan Djärv2012-09-131-0/+1
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* * configure.ac: Reorder Xaw3d messages.Jan Djärv2012-09-131-0/+4
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* Simplify SIGIO usage.Paul Eggert2012-09-121-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* * configure.ac: No --with-x-toolkit given: Try gtk3 toolkit firstJan Djärv2012-09-121-0/+8
| | | | | | | and then gtk2 if not found. --with-x-toolkit=gtk|yes: As above, but fail if gtk2 or gt3 not found. --with-x-toolkit=gtk2: Only try gtk2, fail if not found. --with-x-toolkit=gtk3: Only try gtk3, fail if not found.
* Be more explicit about some Makefile dependenciesGlenn Morris2012-09-111-0/+5
| | | | | | | | | * 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.
* Simplify, document, and port floating-point.Paul Eggert2012-09-101-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Improve robustness of 'make bootstrap'.Paul Eggert2012-09-091-0/+16
| | | | | | | | | | | | | | | | | 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
* Assume C89 or later for math functions.Paul Eggert2012-09-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* More signal-handler cleanup.Paul Eggert2012-09-071-0/+5
| | | | | | | | | | | | | | | | | * 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".
* Signal-handler cleanup.Paul Eggert2012-09-061-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Simplify redefinition of 'abort' (Bug#12316).Paul Eggert2012-09-041-0/+3
| | | | | | | | | | | | | | | | | | | | | | 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.
* * configure.ac (_setjmp, _longjmp): Check by compilingPaul Eggert2012-09-031-0/+6
| | | | | instead of by guessing. The guesses were wrong for recent versions of Solaris, such as Solaris 11.
* * configure.ac (WARN_CFLAGS): Omit -Wjump-misses-init.Paul Eggert2012-09-031-0/+4
| | | | | It generates false alarms in doc.c, regex.c, xdisp.c. See <http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00040.html>.
* Merge from gnulib.Paul Eggert2012-09-031-0/+6
| | | | | | This incorporates: 2012-08-29 stdbool: be more compatible with mixed C/C++ compiles 2011-11-30 manywarnings: update the list of "all" warnings
* * configure.ac (HAVE_GOBJECT): Check for gobject-2.0.Jan Djärv2012-09-021-0/+4
| | | | Fixes: debbugs:12332
* * configure.ac (_FORTIFY_SOURCE): Define only when optimizing.Paul Eggert2012-09-011-0/+7
| | | | | | This ports to glibc 2.15 or later, when configured with --enable-gcc-warnings. See Eric Blake in <http://lists.gnu.org/archive/html/bug-grep/2012-09/msg00000.html>.
* Refactor window-system configurationDaniel Colascione2012-08-311-0/+8
| | | | | | | | | | This change streamlines the window system selection code in configure.in and moves many common function declarations from window-specific headers to frame.h. It introduces a new TERM_HEADER macro in config.h: we set this macro to the right header to use for the window system for which we're compiling Emacs and have source files include it indirectly. This way, we don't have to teach every file about every window system.
* * configure.ac (CFLAGS): Prefer -g3 to -g if -g3 worksPaul Eggert2012-08-251-0/+6
| | | | | and if the user has not specified CFLAGS. -g3 simplifies debugging, since it makes macros visible to the debugger.
* lib/makefile.w32-in ($(BLD)/execinfo.$(O)): Update dependencies.Juanma Barranquero2012-08-251-0/+4
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* MS-Windows adaptations for 2012-08-25T04:04:08Z!eggert@cs.ucla.edu and ↵Eli Zaretskii2012-08-251-0/+5
| | | | | | | | 2012-08-25T04:27:32Z!eggert@cs.ucla.edu. lib/makefile.w32-in ($(BLD)/execinfo.$(O), execinfo.h): New targets. (GNULIBOBJS): Add $(BLD)/execinfo.$(O). src/makefile.w32-in ($(BLD)/alloc.$(O)): Depend on $(GNU_LIB)/execinfo.h.
* On assertion failure, print backtrace if available.Paul Eggert2012-08-241-0/+9
| | | | | | | | | | | | | 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.
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