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bug#50207: 28.0.50; ansi-color-compilation-filter and rgrep
From: |
Basil L. Contovounesios |
Subject: |
bug#50207: 28.0.50; ansi-color-compilation-filter and rgrep |
Date: |
Thu, 26 Aug 2021 23:33:36 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Basil L. Contovounesios [2021-08-26 23:11 +0100] wrote:
> Basil L. Contovounesios [2021-08-26 12:10 +0100] wrote:
>
>> I can reproduce the issue in Emacs 25.1 and newer, but not in 24.5
>> (configuration below signature), with the following modified recipe:
>>
>> 0. emacs -Q
>> 1. (add-hook 'compilation-filter-hook
>> (lambda ()
>> (ansi-color-apply-on-region compilation-filter-start
>> (point))))
>> 2. C-x C-e
>> 3. M-x rgrep RET
>> 4. setq RET RET /dir/of/emacs/trunk RET
>> 5. ...twiddle thumbs...
>> 6. C-c C-k
>>
>> Loading the 24.5 versions of ansi-color.el and compile.el in 25.1
>> between steps 0 and 1 does not seem to change anything.
>
> Which makes sense, because the highlighting bisects to the following
> change in grep.el:
>
> Don't assume 'grep' supports GREP_OPTIONS.
> 2e4c2fe278 2014-09-16 17:07:12 -0700
> https://git.sv.gnu.org/cgit/emacs.git/commit/?id=2e4c2fe2787785a421f256541de642976e9bd90b
That is with GNU grep 3.6, which no longer supports GREP_OPTIONS.
--
Basil