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From: "Eli Zaretskii" <eliz@is.elta.co.il>
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Subject: Re: groff version 1.18.1 and emacs
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> From: lurwas <lurwas@moya.dnsalias.net>
> Date: Mon, 18 Nov 2002 13:26:32 +0100 (CET)
> 
> groff version 1.18.1 gives wrongly formatted man-pages, thus not
> letting emacs display escape sequences correctly. With earlier groff
> versions, it works.

Probably because Groff 1.18 produces SGR color escape sequences which
the filter used by Emacs doesn't strip.

A workaround would be to set the environment variable that disables
the SGR escapes in Groff's output.  This could be done in man.el, just
before it runs `man' in the background.  Sorry, I don't remember the
name of the environment variable that does this, but I'm sure it's
documented somewhere in the Groff manual.