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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.

* bytecode.c (exec_byte_code):
* callint.c (check_mark, Fcall_interactively):
* callproc.c (Fcall_process, add_env, child_setup, getenv_internal_1)
(getenv_internal, sync_process_alive, call_process_exited):
* lisp.h (USE_SAFE_ALLOCA):
Use bool for booleans, instead of int.
* lisp.h, process.h: Adjust prototypes to match above changes.
* callint.c (Fcall_interactively): Don't assume the mark's
offset fits in 'int'.

* buffer.c (reset_buffer_local_variables)
(buffer_lisp_local_variables, Fset_buffer_modified_p)
(Frestore_buffer_modified_p, Fset_buffer_multibyte):
(overlays_at, overlays_in, mouse_face_overlay_overlaps)
(overlay_touches_p, overlay_strings, Foverlay_put)
(report_overlay_modification, call_overlay_mod_hooks):
(mmap_enlarge, mmap_set_vars):
* buffer.h (buffer_has_overlays, uppercasep, lowercasep):
Use bool for booleans, instead of int.
* buffer.c (compact_buffer, mmap_free_1): Return void, not int,
since the 1-or-0 return value is always ignored anyway.
(mmap_initialized_p):
* buffer.h (struct buffer_text.inhibit_shrinking): Now bool, not int.
* buffer.h, lisp.h: Adjust prototypes to match above changes.

This is a bit more readable, and makes the text segment of bidi.o
0.4% smaller on my platform (GCC 4.7.1 x86-64, Fedora 15).
Presumably it's faster too.
(bidi_initialized, bidi_ignore_explicit_marks_for_paragraph_level):
Now bool.
(bidi_cache_find_level_change, bidi_cache_iterator_state)
(bidi_unshelve_cache, bidi_init_it, bidi_count_bytes)
(bidi_char_at_pos, bidi_fetch_char, bidi_paragraph_init)
(bidi_explicit_dir_char, bidi_level_of_next_char)
(bidi_find_other_level_edge, bidi_move_to_visually_next):
Use bool for booleans, instead of int.
* dispextern.h (bidi_init_it, bidi_paragraph_init)
(bidi_unshelve_cache): Adjust decls to match code.

* keyboard.c (Fposn_at_x_y): Do not allow internal window as
argument.

* atimer.h: Include <stdbool.h>.

compile time tests instead of run time tests on systems that do
not use them.
(FRAME_MAC_P): Remove leftover from deleted code.
* frame.c (syms_of_frame): Remove leftover from deleted code.

Otherwise, the compiler complains about (A?B:C) where B is void
and C is Lisp_Object.  This fixes an incompatibility with Sun C	5.12.
(fontset_add): Return void, for FONTSET_ADD.

(gc_in_progress, abort_on_gc)
(setjmp_tested_p) [!GC_SAVE_REGISTERS_ON_STACK && !GC_SETJMP_WORKS]:
(dont_register_blocks) [GC_MALLOC_CHECK]:
(suppress_checking) [ENABLE_CHECKING]: Now bool, not int.
(check_string_bytes, make_specified_string, memory_full)
(live_string_p, live_cons_p, live_symbol_p, live_float_p)
(live_misc_p, live_vector_p, live_buffer_p, mark_maybe_object)
(mark_stack, valid_pointer_p, make_pure_string)
(Fgarbage_collect, survives_gc_p, gc_sweep):
Use bool for booleans, instead of int.
(test_setjmp) [!GC_SAVE_REGISTERS_ON_STACK && !GC_SETJMP_WORKS]:
Remove unused local.
* alloc.c (PURE_POINTER_P):
* lisp.h (STRING_MULTIBYTE): Document that it returns a boolean.
* editfns.c (Fformat):
* fileio.c (Fexpand_file_name, Fsubstitute_in_file_name)
(Fdo_auto_save):
* fns.c (sweep_weak_table):
* lisp.h (suppress_checking, push_message, survives_gc_p)
(make_pure_string, gc_in_progress, abort_on_gc):
* lread.c (readchar, read1):
* print.c (Fprin1_to_string):
* xdisp.c (push_message):
Use bool for booleans affected directly or indirectly by
alloc.c's changes.

* fontset.c (set_fontset_id, set_fontset_name, set_fontset_ascii)
(set_fontset_base, set_fontset_frame, set_fontset_nofont_face)
(set_fontset_default, set_fontset_fallback): Rename from their
upper-case counterparts, and make them functions rather than macros.
This is more consistent with the other recently-introduced setters.
These don't need to be inline, since they're local.

the loop.

Fixes: debbugs:12247

This fixes a performance regression introduced by the recent
addition of vcopy.  This means 'vcopy' will need to be modified
for a copying collector, but that's OK.  Also, tighten the
checking in the assertion.

 src/w32uniscribe.c (uniscribe_shape): Fix producing gstring
 components for RTL text.  Adjust X-OFFSET of each non-base glyph
 for the width of the base character, according to what
 x_draw_composite_glyph_string_foreground expects.  Generate
 WADJUST value according to composition_gstring_width's
 expectations, to produce correct width of the composed character.
 Reverse the sign of the DU offset produced by ScriptPlace.

* lisp.h (vcopy): New function to copy data into vector.
* dispnew.c (Fframe_or_buffer_changed_p): Use AREF and ASET.
* fns.c (Ffillarray): Use ASET.
* keyboard.c (timer_check_2): Use AREF and ASET.
(append_tool_bar_item, Frecent_keys): Use vcopy.
* lread.c (read_vector): Use ASET.
* msdos.c (Frecent_doskeys): Use vcopy.
* xface.c (Finternal_copy_lisp_face): Use vcopy.
(Finternal_merge_in_global_face): Use ASET and vcopy.
* xfont.c (xfont_list_pattern): Likewise.

* window.c (Fwindow_point): For the selected window always return
the position of its buffer's point.
(Fset_window_point): For the selected window always go in its
buffer to the specified position.
* window.el (window-point-1, set-window-point-1): Remove.
(window-in-direction, record-window-buffer)
(set-window-buffer-start-and-point, split-window-below)
(window--state-get-1, display-buffer-record-window): Replace
calls to window-point-1 and set-window-point-1 by calls to
window-point and set-window-point respectively.

* fontset.c (SET_FONTSET_ID, SET_FONTSET_NAME, SET_FONTSET_ASCII)
(SET_FONTSET_BASE, SET_FONTSET_FRAME, SET_FONTSET_NOFONT_FACE)
(SET_FONTSET_DEFAULT, SET_FONTSET_FALLBACK): New macros.
Adjust users.

Presumably it does work fine on all platforms currently building
Emacs, but the autoconf manual says not to rely on it.

 src/.gdbinit: Use "set $dummy = ..." to avoid warnings from GDB 7.5
 and later about non-assignments with no effect.  See discussion at
 http://sourceware.org/ml/gdb-patches/2012-08/msg00518.html for
 details.

* eval.c (set_specpdl_symbol, set_specpdl_old_value): New functions.
Adjust users.

* window.c (select_window): Always make selected window's buffer
current.

* category.h (CATEGORY_DOCSTRING): Use AREF.
(SET_CATEGORY_DOCSTRING): Use ASET.
* category.c (Fdefine_category): Use SET_CATEGORY_DOCSTRING.

* lisp.h (set_hash_key, set_hash_value, set_hash_next)
(set_hash_hash, set_hash_index): Rename with _slot suffix.
(set_hash_key_and_value, set_hash_index, set_hash_next)
(set_hash_hash): New functions.
* charset.c, fns.c: Adjust users.

* buffer.h (per_buffer_default, set_per_buffer_default)
(per_buffer_value, set_per_buffer_value): New functions.
(PER_BUFFER_VALUE, PER_BUFFER_DEFAULT): Remove.
* buffer.c, data.c: Adjust users.

as gnulib does this if the system doesn't.
* lib-src/emacsclient.c (environ): Remove decl.
* src/callproc.c, src/editfns.c, src/process.c (environ) [!USE_CRT_DLL]:
* src/emacs.c (environ) [DOUG_LEA_MALLOC]:
* src/vm-limit.c (environ) [ORDINARY_LINK]: Remove decl.
* src/vm-limit.c: Include <unistd.h>, for 'environ'.

(start_of_data): Remove decl; mem-limits.h provides it.

and avoid a gcc -Wmaybe-uninitialized diagnostic.

* test/redisplay-testsuite.el (test-redisplay): Use switch-to-buffer.

Fixes: debbugs:3874

inferior.

(Fkill_local_variable): Likewise.

ascii_printable is initialized with a null-terminated character
array.  Otherwise, it can contain undesired extra characters.

* chartab.c, lisp.h (char_table_set, char_table_set_range):
Return void, not Lisp_Object.  Otherwise, the compiler
complains about (A?B:C) where B is void and C is Lisp_Object
when compiling CHAR_TABLE_SET, due to the recent change to
the API of sub_char_table_set_contents.

* src/xdisp.c (handle_invisible_prop): Obey TEXT_PROP_MEANS_INVISIBLE
for the string case.

* redisplay-testsuite.el (test-redisplay-4): New test.

Fixes: debbugs:3874

Replace all uses with calls to new setter functions.
(bset_bidi_paragraph_direction, bset_case_canon_table)
(bset_case_eqv_table, bset_directory, bset_display_count)
(bset_display_time, bset_downcase_table)
(bset_enable_multibyte_characters, bset_filename, bset_keymap)
(bset_last_selected_window, bset_local_var_alist)
(bset_mark_active, bset_point_before_scroll, bset_read_only)
(bset_truncate_lines, bset_undo_list, bset_upcase_table)
(bset_width_table):
* buffer.c (bset_abbrev_mode, bset_abbrev_table)
(bset_auto_fill_function, bset_auto_save_file_format)
(bset_auto_save_file_name, bset_backed_up, bset_begv_marker)
(bset_bidi_display_reordering, bset_buffer_file_coding_system)
(bset_cache_long_line_scans, bset_case_fold_search)
(bset_ctl_arrow, bset_cursor_in_non_selected_windows)
(bset_cursor_type, bset_display_table, bset_extra_line_spacing)
(bset_file_format, bset_file_truename, bset_fringe_cursor_alist)
(bset_fringe_indicator_alist, bset_fringes_outside_margins)
(bset_header_line_format, bset_indicate_buffer_boundaries)
(bset_indicate_empty_lines, bset_invisibility_spec)
(bset_left_fringe_width, bset_major_mode, bset_mark)
(bset_minor_modes, bset_mode_line_format, bset_mode_name)
(bset_name, bset_overwrite_mode, bset_pt_marker)
(bset_right_fringe_width, bset_save_length)
(bset_scroll_bar_width, bset_scroll_down_aggressively)
(bset_scroll_up_aggressively, bset_selective_display)
(bset_selective_display_ellipses, bset_vertical_scroll_bar_type)
(bset_word_wrap, bset_zv_marker):
* category.c (bset_category_table):
* syntax.c (bset_syntax_table):
New setter functions.

Fixes: debbugs:12215

Replace all uses with calls to new setter functions.
Use INLINE_HEADER_BEGIN, INLINE_HEADER_END.
(PROCESS_INLINE): New macro.
(pset_childp): New setter function.
(pset_gnutls_cred_type) [HAVE_GNUTLS]: New setter function.
* process.c (PROCESS_INLINE):
Define to EXTERN_INLINE, so that the corresponding functions
are compiled into code.
(pset_buffer, pset_command, pset_decode_coding_system)
(pset_decoding_buf, pset_encode_coding_system)
(pset_encoding_buf, pset_filter, pset_log, pset_mark, pset_name)
(pset_plist, pset_sentinel, pset_status, pset_tty_name)
(pset_type, pset_write_queue): New setter functions.

Fixes: debbugs:12215

Replace all uses with calls to new setter functions.
Use INLINE_HEADER_BEGIN, INLINE_HEADER_END.
(WINDOW_INLINE): New macro.
(wset_buffer, wset_frame, wset_left_col, wset_next, wset_prev)
(wset_redisplay_end_trigger, wset_top_line, wset_total_cols)
(wset_total_lines, wset_vertical_scroll_bar)
(wset_window_end_pos, wset_window_end_valid)
(wset_window_end_vpos): New setter functions.
* window.c (WINDOW_INLINE):
Define to EXTERN_INLINE, so that the corresponding functions
are compiled into code.
(wset_combination_limit, wset_dedicated, wset_display_table)
(wset_hchild, wset_left_fringe_width, wset_left_margin_cols)
(wset_new_normal, wset_new_total, wset_next_buffers)
(wset_normal_cols, wset_normal_lines, wset_parent, wset_pointm)
(wset_prev_buffers, wset_right_fringe_width)
(wset_right_margin_cols, wset_scroll_bar_width, wset_start)
(wset_temslot, wset_vchild, wset_vertical_scroll_bar_type)
(wset_window_parameters):
* xdisp.c (wset_base_line_number, wset_base_line_pos)
(wset_column_number_displayed, wset_region_showing):
New setter functions.

Fixes: debbugs:12215