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bug#29778: grep seems to ignore GREP_OPTIONS

From: Paul Eggert
Subject: bug#29778: grep seems to ignore GREP_OPTIONS
Date: Tue, 19 Dec 2017 21:54:03 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0

On 12/19/2017 06:29 PM, Dennis wrote:
For a long time I have used GREP_OPTIONS to set the
--ignore-case option. Suddenly it seems to be ignoring it.

That's odd, since (though GREP_OPTIONS is obsolescent) it should work, with a warning. From the NEWS file:

  The GREP_OPTIONS environment variable is now obsolescent, and grep
  now warns if it is used.  Please use an alias or script instead.
Please send us the grep version number, how you built and installed grep, and give a test case showing how to reproduce the problem. In the long run I suggest that you also look into solving your problem without using GREP_OPTIONS.

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