Fixed problems revealed by -Wall.
* sysdep.c (str_collate): Clear errno just before wcscoll(_l).

One can't hoist this out of the 'if', because intervening calls to
newlocale, twolower, etc. can change errno.
* src/conf_post.h (strnicmp) [CYGWIN && HAVE_NTGUI]: Define.  (Bug#18366)
Vector-sorting fixes.

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
* fns.c (sort_vector): Fix GC bug in previous change.
* configure.ac (MAKE): Export it, for config.status.

Needed on AIX when 'configure' infers MAKE=gmake.
Fix bug#18368 with broken build on AIX due to HYBRID_MALLOC changes.

* src/gmalloc.c: Don't include <stdlib.h>.  Declare system malloc and
friends before defining hybrid_malloc and friends if HYBRID_MALLOC
is defined.  (Bug#18368)
* configure.ac (__restrict_arr): Remove; no longer used.
Fix cursor drawing in hscrolled R2L screen lines.

 src/xdisp.c (get_glyph_string_clip_rects): Don't let the width of a
 clipping rectangle become negative (i.e. large positive, since
 it's an unsigned data type).  This can happen in R2L hscrolled
 glyph rows, and caused us to draw the cursor glyph on the fringe.
 For the details, see
 http://lists.gnu.org/archive/html/emacs-devel/2014-08/msg00543.html.
Fix cursor display on the fringe of R2L screen lines.

 src/xdisp.c (display_and_set_cursor): Call erase_phys_cursor also
 when HPOS is negative, for the benefit of R2L glyph rows whose
 newline overflows into the fringe.
Replace mode-specific quit function in ibuffer.el

* lisp/ibuffer.el: Replace mode-specific quit function with
`quit-window' via `special-mode'.
(ibuffer-mode-map): Use keybindings from special-mode-map instead
of local overrides.
(ibuffer): Don't store previous windows configuration. Let
`quit-window' handle restoring.
(ibuffer-quit): Remove function. Use `quit-window' instead.
(ibuffer-restore-window-config-on-quit): Remove variable.
(ibuffer-prev-window-config): Remove variable.
* etags.c (emacs_strchr, emacs_strrchr): Remove.

All uses replaced by strchr and strrchr, which are on all
target platforms now.
Clean up extern decls a bit.

* configure.ac (WERROR_CFLAGS): Don't disable -Wnested-externs.
While we're at it, don't disable -Wlogical-op either.
* src/bytecode.c: Include blockinput.h and keyboard.h rather
than rolling their APIs by hand.
* src/emacs.c: Include regex.h and rely on its and lisp.h's API
rather than rolling them by hand.
* src/lastfile.c: Include lisp.h, to check this file's API.
* src/lisp.h (lisp_eval_depth, my_edata, my_endbss, my_endbss_static):
New decls.
* src/regex.h (re_max_failures): New decl.
* src/unexcw.c, src/unexmacosx.c, src/unexw32.c:
Rely on lisp.h's API rather than rolling it by hand.
* src/vm-limit.c (__after_morecore_hook, __morecore, real_morecore):
Declare at top level, to pacify GCC -Wnested-externs.
--enable-silent-warnings now suppresses more chatter.

* INSTALL, etc/NEWS: Document this.
* lib-src/Makefile.in (AM_DEFAULT_VERBOSITY, AM_V_CC, am__v_CC_)
(am__v_CC_0, am__v_CC_1, AM_V_CCLD, am__v_CCLD_, am__v_CCLD_0)
(am__v_CCLD_1): New macros, taken from Automake.
(regex.o, etags${EXEEXT}, ctags${EXEEXT}, ebrowse${EXEEXT})
(profile${EXEEXT}, make-docfile${EXEEXT}, movemail${EXEEXT})
(pop.o, emacsclient${EXEEXT}, emacsclientw${EXEEXT})
(emacsclientw${EXEEXT}, ntlib.o, hexl${EXEEXT})
(update-game-score${EXEEXT}): Use them.
* lwlib/Makefile.in (AM_DEFAULT_VERBOSITY, AM_V_CC, am__v_CC_)
(am__v_CC_0, am__v_CC_1): New macros, taken from Automake.
(.c.o): Use them.
* oldXMenu/Makefile.in (AM_DEFAULT_VERBOSITY, AM_V_CC, am__v_CC_)
(am__v_CC_0, am__v_CC_1): New macros, taken from Automake.
(.c.o): Use them.
* src/Makefile.in (AM_DEFAULT_VERBOSITY, AM_V_CC, am__v_CC_)
(am__v_CC_0, am__v_CC_1, AM_V_CCLD, am__v_CCLD_, am__v_CCLD_0)
(am__v_CCLD_1): New macros, taken from Automake.
(.c.o, .m.o, temacs$(EXEEXT)): Use them.
Fix typo in previous change's ChangeLog.
Auto-commit of loaddefs files.
src/lastfile.c: Fix last change.
Use the new string-collate-lessp function in ls-lisp.el.

 lisp/ls-lisp.el (ls-lisp-use-string-collate)
 (ls-lisp-UCA-like-collation): New defcustoms.
 (ls-lisp-string-lessp): Use them to control sorting by file
 names.

 etc/NEWS: Mention that ls-lisp uses string-collate-lessp.

Fixes: debbugs:18051
Implement the GNU ls -v switch in ls-lisp.el.

 lisp/ls-lisp.el (ls-lisp-version-lessp): New function.
 (ls-lisp-handle-switches): Use it to implement the -v switch of GNU ls.
 (ls-lisp--insert-directory): Mention the -v switch in the doc string.

Fixes: debbugs:18051
src/w32proc.c (w32_compare_strings): Support "C" and "POSIX" locales.