keyboard.c (kbd_buffer_nr_stored): Define only ifdef subprocesses.
(kbd_buffer_store_event_hold, kbd_buffer_get_event)
(tty_read_avail_input): Call kbd_buffer_nr_stored only ifdef
subprocesses. Use buffer_free only ifdef subprocesses.
process.c (init_process) [subprocesses]: Init kbd_is_on_hold in
the subprocesses version, not in the non-subprocesses one.
* image.c (free_image): Don't garbage the frame here, since this
function can be called while redisplaying (Bug#7210).
(uncache_image): Garbage the frame here (Bug#6426).
* dispextern.h (TRY_WINDOW_CHECK_MARGINS)
(TRY_WINDOW_IGNORE_FONTS_CHANGE): New defines.
* xdisp.c (try_window): Change arg from CHECK_MARGINS to FLAGS.
Don't abort with fonts change if TRY_WINDOW_IGNORE_FONTS_CHANGE is
set in FLAGS. Callers with non-zero CHECK_MARGINS changed to use
TRY_WINDOW_CHECK_MARGINS.
* xfns.c (Fx_show_tip): Undo last change. Call try_window with
TRY_WINDOW_IGNORE_FONTS_CHANGE (Bug#2423).
* src/xfns.c (x_real_positions): Try to get _NET_FRAME_EXTENTS first
before traversing window tree (Bug#5721).
* src/xterm.c (x_term_init): Initialize Xatom_net_frame_extents.
* src/xterm.h (struct x_display_info): Xatom_net_frame_extents is new.
* configure.in (CRT_DIR): New output variable.
(--with-crt-dir): New option. (Bug#5655)
(HAVE_LIB64_DIR): Remove.
* src/Makefile.in (CRT_DIR): New variable, set by configure.
* src/m/amdx86-64.h, m/ibms390x.h (START_FILES, LIB_STANDARD):
Use $CRT_DIR rather than HAVE_LIB64_DIR. (Bug#5655)
* src/keyboard.c (input_available_signal): Declare.
(kbd_buffer_nr_stored): New function.
(kbd_buffer_store_event_hold): If kbd_buffer_nr_stored returns
more than KBD_BUFFER_SIZE/2, stop reding input (Bug#6571).
(kbd_buffer_get_event): If input is suspended and kbd_buffer_nr_stored
returns less than KBD_BUFFER_SIZE/4, resume reding input (Bug#6571).
(tty_read_avail_input): If input is on hold, return.
Don't read more that free slots in kbd_buffer (Bug#6571).
* src/process.c (kbd_is_on_hold): New variable.
(hold_keyboard_input, unhold_keyboard_input, kbd_on_hold_p):
New functions.
(wait_reading_process_output): If kbd_on_hold_p returns non-zero,
select on empty input mask.
(init_process): Initialize kbd_is_on_hold to 0.
* src/process.h (hold_keyboard_input, unhold_keyboard_input)
(kbd_on_hold_p): Declare.
* xterm.c (x_connection_closed): Print informative error message
when aborting on GTK. This requires using shut_down_emacs
directly instead of Fkill_emacs.
(Fdbus_register_signal, Fdbus_register_method): Check, whether
`dbus-registered-objects-table' is initialized.
Must not be synchronized with the trunk.
src/frame.c (Fframep, Fwindow_system): Deprecate use as a predicate.
Document all values.
src/dispnew.c (syms_of_display) <initial-window-system, window-system>:
Deprecate use as a boolean flag. Document all values.
src/display.texi (Window Systems): Deprecate use of window-system as
a predicate.
* lisp/cus-start.el (all): ns-right-alternate-modifier is new.
* lisp/term/ns-win.el (ns-right-alternate-modifier): New defvar.
(ns-right-option-modifier): New alias for ns-right-alternate-modifier.
(mac-right-option-modifier): New alias for ns-right-option-modifier.
* src/nsterm.m (Qleft): Declare.
(ns_right_alternate_modifier): New variable
(NSRightAlternateKeyMask): New define.
(EV_MODIFIERS): Parse NSRightAlternateKeyMask if
ns_right_alternate_modifier isn't Qleft.
(keyDown): If ns_right_alternate_modifier isn't Qleft, use it
as emacs modifier for NSRightAlternateKeyMask.
(syms_of_nsterm): DEFVAR_LISP ns-right-alternate-modifier.
is more portable.
* keyboard.c (gobble_input): Move call of xd_read_queued_messages ...
(kbd_buffer_get_event): ... here. This is needed for cygwin, which
has not defined SIGIO.
