Menu: Help -> Manuals -> Read Man Page... problem

[Peter Breitenlohner]

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In GNU Emacs 21.3.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2004-02-24 on pcl321
configured using `configure  ix86-linux-gnulibc2 --prefix=/usr/local'
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: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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

If I use the emacs menu: Help -> Manuals -> Read Man Page...
to view a unix manpage I get bad output. The reason is, that since
groff-1.18.1 the output from 'groff -Tlatin1 -mandoc' contains SRG
escape sequences (ISO 6429, or ANSI color escapes) that emacs doesn't
display properly.

The same problem occured with xman from XFree86-4.3.0 (and maybe earlier).
There the solution was to invoke groff with a suitable environment variable:
      GROFF_NO_SGR= groff -Tlatin1 -mandoc

The alternative to invoke groff with '-c' is not viable because (1) that flag
is not understood by groff-1.17.x and (2) even for groff-1.18.1 seems not to
work as advertised.

regards
Peter Breitenlohner  <peb@mppmu.mpg.de>



Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <menu-bar> <help-menu> <manuals> <man> 
<return> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <menu-bar> <help-menu> <report-emacs-b
ug>

Recent messages:
(emacs)
Loading tool-bar...done
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For information about the GNU Project and its goals, type C-h C-p.
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if: No man args given
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