Fixes: debbugs:14826

* progmodes/sh-script.el (sh-read-variable): Remove interactive
spec.
* src/sheap.c (STATIC_HEAP_SIZE) [__x86_64__]: Increase to 18MB.
Port recent close-on-exec changes to Cygwin.

* lib/binary-io.c, lib/binary-io.h: New files.
Merge from gnulib, incorporating:
2013-07-09 accept4, dup3, pipe2: port to Cygwin
* lib/pipe2.c: Update from gnulib, as part of this merge.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
Avoid nexted functions in AC_LANG_PROGRAM test for Windows headers.

 configure.ac (HAVE_W32): Avoid nested functions (the second
 argument of AC_LANG_PROGRAM is already expanded inside a
 function).
* INSTALL: Try to clarify role of make distclean.
* files.el (require-final-newline): Allow safe local value.
Timestamp fixes for undo.

* doc/lispref/text.texi (Undo):
Document (t . 0) and (t . -1) in buffer-undo-list.
* etc/NEWS: Changes to visited-file-modtime, set-visited-file-modtime.
* lisp/files.el (clear-visited-file-modtime): Move here from fileio.c.
* src/atimer.c (schedule_atimer):
* src/fileio.c (Ffile_newer_than_file_p):
Minor cleanup: use EMACS_TIME_LT so that we can remove EMACS_TIME_GT.
* src/buffer.c (buffer-undo-list): Document (t . 0) and (t . -1).
* src/fileio.c (Fclear_visited_file_modtime): Move to lisp/files.el.
(syms_of_fileio): Remove Sclear_visited_file_name.
(Fvisited_file_modtime): Return -1, not (-1 ...), when the visited
file doesn't exist; this avoids an ambiguity with negative timestamps.
(Fset_visited_file_modtime): Accept -1 and 0 as time-list arg.
* src/systime.h (make_emacs_time, invalid_emacs_time):
Don't assume struct timespec layout; POSIX doesn't guarantee it.
(EMACS_TIME_NE, EMACS_TIME_GT, EMACS_TIME_GE): Remove.
* src/undo.c (record_first_change): Push (visited-file-modtime) onto
undo list rather than reimplementing it by hand, incorrectly.
* Makefile.in (removenullpaths): Remove adjacent null paths.
Auto-commit of generated files.
* emacs.c (main): Fix syntax error.
Add comment.
* progmodes/cfengine.el: Do not indent inside continued strings.
Improve error messages.  (Bug#14808)

* net/tramp.el (tramp-current-connection): New defvar, moved from
tramp-sh.el.
(tramp-message-show-progress-reporter-message): Removed, not
needed anymore.
(tramp-error-with-buffer): Show message in minibuffer.  Discard
input before waiting.  Reset connection timestamp.
(with-tramp-progress-reporter): Improve messages.
(tramp-process-actions): Use progress reporter.  Delete process in
case of error.  Improve messages.

* net/tramp-sh.el (tramp-barf-if-no-shell-prompt): Use
condition-case.  Call `tramp-error-with-buffer' with vector and buffer.
(tramp-current-connection): Removed.
(tramp-maybe-open-connection): The car of
`tramp-current-connection' are the first 3 slots of the vector.
Fix last patch.
Syntax cleanup, mostly replacing macros with functions.

This removes the need for the syntax_temp hack.
* search.c: Include syntax.h after buffer.h, since syntax.h uses BVAR.
* syntax.c (SYNTAX_INLINE): New macro.
(SYNTAX_FLAGS_COMSTART_FIRST, SYNTAX_FLAGS_COMSTART_SECOND)
(SYNTAX_FLAGS_COMEND_FIRST, SYNTAX_FLAGS_COMEND_SECOND)
(SYNTAX_FLAGS_PREFIX, SYNTAX_FLAGS_COMMENT_STYLEB)
(SYNTAX_FLAGS_COMMENT_STYLEC, SYNTAX_FLAGS_COMMENT_STYLEC2)
(SYNTAX_FLAGS_COMMENT_NESTED, SYNTAX_FLAGS_COMMENT_STYLE)
(SYNTAX_COMEND_FIRST): Now functions, not macros.
(ST_COMMENT_STYLE, ST_STRING_STYLE, INTERVALS_AT_ONCE):
Now constants, not macros.
(syntax_temp) [!__GNUC__]: Remove.
(SYNTAX_PREFIX): Remove; all uses replaced by syntax_prefix_flag_p.
(syntax_prefix_flag_p): Move implementation of SYNTAX_PREFIX here.
(SET_RAW_SYNTAX_ENTRY, SET_RAW_SYNTAX_ENTRY_RANGE, SYNTAX_MATCH)
(SETUP_SYNTAX_TABLE, SETUP_SYNTAX_TABLE_FOR_OBJECT):
Move here from syntax.h; now functions, not macros.  Except for the
last function, these are static since only syntax.c uses them.
(syntax_multibyte): Rename from SYNTAX_WITH_MULTIBYTE_CHECK.
All uses changed.  Now a function, not a macro; use this fact
to simplify the code.
(scan_lists, scan_sexps_forward): Remove workarounds for ancient
compiler bugs; no longer relevant.
* syntax.h: Use INLINE_HEADER_BEGIN, INLINE_HEADER_END.
(SYNTAX_INLINE): New macro.
(struct gl_state_s, gl_state): Move earlier, so that it's in scope
for the new functions.  Use bool for boolean member.
(SYNTAX_ENTRY, SYNTAX, SYNTAX_WITH_FLAGS, SYNTAX_MATCH)
(SYNTAX_TABLE_BYTE_TO_CHAR, UPDATE_SYNTAX_TABLE_FORWARD)
(UPDATE_SYNTAX_TABLE_BACKWARD, UPDATE_SYNTAX_TABLE)
(SETUP_BUFFER_SYNTAX_TABLE):
Now extern inline functions, not macros.
(CURRENT_SYNTAX_TABLE, SYNTAX_ENTRY_INT):
Remove; all uses replaced by implementation.
(syntax_temp) [!__GNUC__]: Remove decl.
(SETUP_SYNTAX_TABLE_FOR_OBJECT): New decl.
Improve scrolling when line-spacing != 0 and scroll-step = 1.

 lisp/simple.el (default-line-height): New function.
 (line-move-partial, line-move): Use it instead of computing the
 line height inline.
 (line-move-partial): Always compute ROWH.  If the last line is
 partially-visible, but its text is completely visible, allow
 cursor to enter such a partially-visible line.
gnus.el (gnus-summary-line-format): Docfix
gnus-start.el (gnus-clean-old-newsrc): Always remove 'unexist' marks if `gnus-newsrc-file-version' does not match `gnus-version'.  This fixes a bug in Emacs trunk where the 'unexist' marks were always removed at startup because "Gnus v5.13" was considered smaller than "Ma Gnus v0.03".
Port to C89.

* lib-src/ebrowse.c (USAGE): Remove macro with too-long string literal ...
(usage_message): ... and replace it with this new static constant
containing multiple literals.  All uses changed.
* lib-src/emacsclient.c (print_help_and_exit):
Rewrite to avoid string literals longer than the C89 limits.
(start_daemon_and_retry_set_socket):
Rewrite to avoid non-constant array initializer.
* lib-src/make-docfile.c (enum global_type): Omit trailing comma.
* src/bytecode.c (BYTE_CODE_THREADED): Do not define if __STRICT_ANSI__.
(B__dummy__): New dummy symbol, to pacify C89.
* src/dbusbind.c (XD_DEBUG_MESSAGE): Omit debugging on C89 hosts, since
they can't grok varargs macros.
* src/dispnew.c (add_window_display_history)
(add_frame_display_history):
* src/print.c (print_object):
* src/xdisp.c (debug_method_add):
Use %p printf format only for void pointers.
* src/emacs.c (usage_message): New constant, replacing ...
(USAGE1, USAGE2, USAGE3): Remove; they were too long for C89.
(main): Adjust to usage reorg.
* src/fns.c (syms_of_fns):
* src/profiler.c (syms_of_profiler):
Don't use non-constant struct initializers.
* src/gnutls.h (gnutls_initstage_t):
* src/lisp.h (enum Lisp_Fwd_Type):
* src/lread.c (lisp_file_lexically_bound_p):
* src/xsettings.c (anonymous enum):
Remove trailing comma.
* src/xsettings.c (apply_xft_settings): Use %f, not %lf; %lf is a C99ism.
* src/lisp.h (ENUM_BF): Use unsigned if pedantic.
(DEFUN_FUNCTION_INIT): New macro, that falls back on a cast if pre-C99.
(DEFUN): Use it.
* src/regex.c (const_re_char): New type, to pacify strict C89.
All uses of 'const re_char' replaced to use it.
* src/regex.h (_Restrict_): Rename from __restrict, to avoid clash
with glibc when strict C89.  This change is imported from gnulib.
All uses changed.
(_Restrict_arr_): Rename from __restrict_arr, similarly.
* src/sysdep.c (time_from_jiffies) [!HAVE_LONG_LONG_INT]:
Omit GNU_LINUX implementation, since it requires long long.
* src/xterm.c (x_draw_underwave):
Do not assume the traditional order of struct's members.
(x_term_init): Rewrite to avoid the need for non-constant structure
initializers.
lisp/subr.el (delay-warning): New function.