Latin-1 non breaking space not highlighted

[Ulrich Neumerkel]

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In GNU Emacs 21.2.1 (i686-pc-linux-gnu, X toolkit)
 of 2002-04-08 on gupu.complang.tuwien.ac.at
configured using `configure  --without-toolkit-scroll-bars --prefix /usr'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: nil

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

With show-trailing-whitespace being true in a Latin-1 buffer the
character "non breaking space" (C-x 8 SPACE) is not highlighted at the
end of line.


US
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: nil

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

With show-trailing-whitespace being true in a Latin-1 buffer the
character "non breaking space" (C-x 8 SPACE) is not highlighted at the
end of line.