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(Fkill_local_variable, Fmake_variable_frame_local)
(Flocal_variable_p, Flocal_variable_if_set_p):
Use indirect_variable to trace thru variable aliases.

real_this_command, and current_kboard->Vlast_command.

Do nothing with mail-personal-alias-file if it is nil.

Use dired-view-command-alist here, as in dired-view-file.
(dired-view-command-alist): Use %s to substitute file name.
Handle .ps_pages, .eps, .jpg, .gif, .png.

`Info-prev-reference', instead of M-tab.

are designated as parens through the syntax-table text property.

line break position in the middle of a non-kinsoku (e.g. latin)
word, making it skip until either a space or a character with
category "|".
(kinsoku-longer): Test for end of buffer.

quoted-printable- and base64-encoded messages and decode them
automatically.  Set the message's encoding from the charset=
header, if any.  Decode base64-encoded messages in Mail format as
well.

COMMAND.COM commands.

(decode_coding_sjis_big5): Likewise.

(smtpmail-send-queued-mail): Set smtpmail-mail-address before
calling smtpmail-via-smtp.
(smtpmail-via-smtp): Add fall-back values for envelope-from.

operators.

(c-assignment-operators): New language constant that only contains the
assignment operators.

(c-assignment-op-regexp): New language variable used by c-lineup-math'.

`define-widget'.

which caused electric keywords like "else" to disappear if an open
brace was typed directly afterwards.

(syms_of_xfns): DEFVAR_LISP it.  Provide gtk.

before looking for it.