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GREP_OPTIONS and color

From: Stefan
Subject: GREP_OPTIONS and color
Date: Mon, 06 Sep 2004 22:07:49 -0400
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3.50 (darwin)

Old GNU greps like the version 2.4.2 distributed with Mac OS X don't like
the --color=always option.  Here's what I get in the *Grep* buffer:

   cd /Users/monnier/src/emacs/work/lisp/gnus/  # -*-grep-*-
   Entering directory `/Users/monnier/src/emacs/work/lisp/gnus/'
   grep -nH mm-decode-coding-string  *.el
   grep: unrecognized option `--color=always'
   Usage: grep [OPTION]... PATTERN [FILE]...
   Try `grep --help' for more information.
   Grep exited abnormally with code 2 at Mon Sep  6 22:01:14

-- Stefan

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