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symbols differently.

symbols' value directly.

bit-fields.
(init_obarray): Likewise for t and nil.

(pure_size) [HAVE_SHM]: Declare extern size_t.
(check_pure_size): Add prototype.

(enum symbol_interned): New enumeration.
(struct Lisp_Symbol): Remove member `obarray', add
`indirect_variable', `constant', and `interned'.
(SYMBOL_INTERNED_P, SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P)
(SYMBOL_CONSTANT_P, SYMBOL_VALUE, SET_SYMBOL_VALUE): New macros.
(indirect_variable): Add prototype.

that EVENT->code isn't a function key, use the keysym's name.

Use SYMBOL_VALUE/SET_SYMBOL_VALUE macros instead of accessing
symbols' value directly.

(specbind): Simplify the test if symbol is a constant.
(syms_of_eval): Defsubr Fdefvaralias.

(fatal_error_signal): Call that function.

(Fdump_emacs_data, Fdump_emacs): Call check_pure_size.

(Qcyclic_variable_indirection): New variable.
(Fkeywordp): Check for internedness differently.
(Fmakunbound): Simplify the test if symbol is a constant.
(indirect_variable, Findirect_variable): New functions.
(swap_in_symval_forwarding): If SYMBOL is an alias, use the
aliased symbol.
(let_shadows_buffer_binding_p): Check for variable aliases.
(set_internal): Simplify the test if SYMBOL is a constant.  If
SYMBOL has a buffer-local value and is an alias, use the aliased
symbol instead.
(syms_of_data): Initialze Qcyclic_variable_indirection and defsubr
Sindirect_variable.

(Fbyte_code) <varset>: Simplify the test if symbol's value can be
set directly.

New variables.
(init_alloc_once): Initialize new variables.
(PURE_POINTER_P): Use new variables.
(pure_alloc): If pure storage overflows, allocate from the heap.
(check_pure_size): New function.
(Fgarbage_collect): Don't GC if pure storage has overflowed.

(Vpost_gc_hook, Qpost_gc_hook): New variables.
(syms_of_alloc): DEFVAR_LISP post-gc-hook, initialize
Qpost_gc_hook.
(Fgarbage_collect): Run post-gc-hook.

(Fmake_symbol): Adapt to changes of struct Lisp_Symbol.

(w32_load_system_font): Don't believe what GetLanguageFontInfo
says; query codepage info directly to determine if font is double
byte.
(x_to_w32_charset): Handle private format for unknown charsets.
Handle wildcards in charset spec, by ignoring them.
(w32_codepage_for_font): Fix argument to alloca.  Don't remove
"*-" prefix from charset.
(x_to_w32_font): Enlarge remainder array for safety.  Specifically
handle the truncated font spec form constructed by font_list_1, so
that we correctly identify the charset fields.  Don't remove "*-"
prefix from charset.
(w32_list_synthesized_fonts): Fix argument to alloca.

`process-environment' that earlier entries take precedence over later
ones.

(Fprevious_char_property_change): Remove reference to non-existant
argument OBJECT from doc-string.

New bit flag

(try_window_id): Skip back over lines ending in a newline from a
string.

f->menu_bar_vector can be nil, and not a vector.  From Ken Raeburn
<raeburn@gnu.org>.

nocombreloc, in case -z combreloc is the default.

really going on here.

and latin-N.
(SOME_MACHINE_LISP): Remove menu-bar, since it's loaded unconditionally now.
(lisp): Add latin-N, since they are preloaded.

to the left.  Some cleanup.

multibyteness should be used for display.

reading at EOF.

of the only tempoarily set echoing flag for deciding when
the cancel echoing.