src/xdisp.c (compute_display_string_pos): Fix logic of caching
previous display string position. Initialize cached_prev_pos to -1.
Fixes slow-down at the beginning of a buffer.
* m4/largefile.m4: New file, so that Emacs does not mess up when
accessing files with large inode numbers in MacOS X 10.5 and later.
* m4/nocrash.m4: New file, to avoid triggering background debugger
and/or create core dumps during 'configure'.
* build-aux/move-if-change: Renamed from move-if-change.
* build-aux/snippet/arg-nonnull.h: Renamed from arg-nonnull.h.
* build-aux/snippet/c++defs.h: Renamed from c++defs.h.
* build-aux/snippet/warn-on-use.h: Renamed from warn-on-use.h.
* build-aux/snippet/_Noreturn.h: New file, for draft C1X _Noreturn.
* .bzrignore: The autogenerated files compile, config.guess,
config.sub, depcomp, install-sh, and missing are now in build-aux.
* Makefile.in (epaths-force, sync-from-gnulib):
move-if-change is now in build-aux.
(GNULIB_TOOL_FLAGS): Avoid threadlib; this is now a prerequisite
of gnulib's pthread_sigmask module, but Emacs doesn't need it.
(mkdir): install-sh is now in build-aux.
* config.bat: c++defs.h is now in build-aux/snippets.
* configure.in: Specify AC_CONFIG_AUX_DIR with build-aux (the
usual parameter).
* lib/gnulib.mk, m4/gl-comp.m4: Regenerate.
* lib/makefile.w32-in (ARG_NONNULL_H): arg-nonnull.h moved
to build-aux/snippet.
* lib/pthread_sigmask.c, lib/stdlib.in.h, m4/extensions.m4:
* m4/getopt.m4, m4/gnulib-common.m4, m4/pthread_sigmask.m4:
Merge from gnuilib. This fixes porting bugs on Cygwin, Irix, and
Solaris, enables MacOS extensions, and enables nocrash during
'configure'.
* make-dist: Adjust to new build-aux and build-aux/snippit dirs.
* admin/notes/copyright: The files compile, config.guess, config.sub,
depcomp, install-sh, missing, and move-if-change are now in the
new build-aux subdirectory. The files arg-nonnull.h, c++defs.h,
and warn-on-use.h are now in build-aux/snippets. New file
build-aux/snippets/_Noreturn.h.
* leim/Makefile.in (install): install-sh is now in build-aux.
* lib-src/Makefile.in ($(DESTDIR)${archlibdir}): install-sh moved
to build-aux.
* msdos/sedlibmk.inp (CONFIG_CLEAN_VPATH_FILES): Adjust to snippet moves
from top level to build-aux/snippet.
* src/Makefile.in (gl-stamp): move-if-change is now in build-aux.
nnir.el (nnir-search-thread): New function to make an nnir group based on a thread query.
gnus-sum.el (gnus-refer-thread-use-nnir): New variable to control use of nnir in thread referral.
(gnus-summary-refer-thread): Use it.
nnimap.el (nnimap-request-thread): Use it.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p under bidi redisplay
when exact match is impossible due to invisible text, and the
lines are truncated.
src/xdisp.c (move_it_in_display_line_to): Record the best matching
position for TO_CHARPOS while scanning the line, and restore it on
exit if none of the characters scanned was an exact match. Fixes
vertical-motion and pos-visible-in-window-p when exact match is
impossible due to invisible text, and the lines are truncated.
src/xdisp.c (compute_stop_pos_backwards): New function.
(next_element_from_buffer): Call compute_stop_pos_backwards to
find a suitable prev_stop when we find ourselves before
base_level_stop.
(reseat): Don't look for prev_stop, as that could mean a very long
run.
<cached_disp_pos, cached_disp_buffer, cached_disp_modiff>
<cached_disp_overlay_modiff>: Cache for last found display string
position.
(compute_display_string_pos): Return the cached position if asked
about the same buffer in the same area of character positions, and
the buffer wasn't changed since the time the display string
position was cached.
src/xdisp.c (compute_stop_pos_backwards): New function.
(handle_stop_backwards): Revert last change.
(next_element_from_buffer): Call compute_stop_pos_backwards to
find a suitable prev_stop when we find ourselves before
base_level_stop. Remove the funky search for 1000 character
positions back.
cc-mode.el: Remove two autoload forms which loaded cc-langs.
cc-langs.el (c-make-init-lang-vars-fun): Don't emit "(require 'cc-langs)".
Quote a form so it will evaluate at (cc-mode's) compilation time.
* window.el (display-buffer-pop-up-window)
(display-buffer-pop-up-side-window)
(display-buffer-in-side-window): Call display-buffer-set-height
and display-buffer-set-width after setting the new window's
buffer so `fit-window-to-buffer' and friends work on the right
buffer.
(etags-tags-included-tables): Call `convert-standard-filename' on
the file names contained in TAGS so that windows Emacs can handle
TAGS files created by cygwin ctags.
nnimap.el (nnimap-make-thread-query): New utility function to format an imap thread search query.
(nnimap-request-thread): Use it.
gnus-sum.el (gnus-handle-ephemeral-exit): Ensure we are setting the right select-method if we are not going back to the group buffer.
gnus-group.el (gnus-group-read-ephemeral-group): Make sure we don't enter invalid buffer configurations into the quit form (bug#9107).
(gnus-group-tool-bar-gnome): Replace connect/disconnect with unplugged/plugged.
gnus-sum.el (gnus-summary-refer-thread): When inserting new headers, keep track of which ones are unread (bug#9061).
gnus.el (gnus-refer-article-method): Allow entering any sexp (bug#9055).
gnus-art.el (gnus-article-show-images): Allow working if using w3m (bug#9041).
gnus-html.el (mm-util): Require (bug#9073).
gnus-sum.el (gnus-delete-duplicate-headers): New function.
(gnus-summary-refer-thread): Use it to remove duplicates in the un-threaded view (bug#9053).
(gnus-summary-insert-subject): Document USE-OLD-HEADER (bug#9070).
nnir.el (nnir-read-server-parm): Use default value from global variable. Without this the default search engine parameters aren't used at all.
message.el (message-unique-id): Don't use the undocumented return value from (random t) (bug#9118).
src/xdisp.c (reseat): Don't look for prev_stop, as that could mean a
very long run.
(next_element_from_buffer): When iterator oversteps prev_pos
backwards, don't search for a new prev_stop more than 1000
characters back.
(handle_stop_backwards): Don't assume that CHARPOS is necessarily
a stop_pos.
(compute_display_string_pos): Check also BUF_OVERLAY_MODIFF for a
match, when testing the cached display string position for
applicability.
See http://lists.gnu.org/archive/html/emacs-devel/2011-07/msg00688.html
and the surrounding thread.
* minibuf.c (read_minibuf_noninteractive): Rewrite to use getchar
rather than fgets, and retry after EINTR. Otherwise, 'emacs
--batch -f byte-compile-file' fails on OpenBSD if an inactivity
timer goes off.
* s/openbsd.h (BROKEN_SIGIO): Define.
* unexelf.c (unexec) [__OpenBSD__]:
Don't update the .mdebug section of the Alpha COFF symbol table.
