GNU bug report logs - #32347
gzip cannot be patched

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Message #8 received at 32347 <at> debbugs.gnu.org (full text, mbox):

From: Efraim Flashner <efraim <at> flashner.co.il>
To: Marius Bakke <mbakke <at> fastmail.com>
Cc: 32347 <at> debbugs.gnu.org
Subject: Re: bug#32347: gzip cannot be patched
Date: Thu, 2 Aug 2018 14:57:18 +0300

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On Thu, Aug 02, 2018 at 01:32:02PM +0200, Marius Bakke wrote:
> Hello!
> 
> I'm trying to add a patch to 'gzip', but it causes an infinite loop and
> eventually the system runs out of memory.
> 
> It can be reproduced by adding this hunk:
> 

> modified   gnu/packages/compression.scm
> @@ -215,6 +215,7 @@ adding and extracting files to/from a tar archive.")
>              (method url-fetch)
>              (uri (string-append "mirror://gnu/gzip/gzip-"
>                                  version ".tar.xz"))
> +            (snippet '(#t))
>              (sha256
>               (base32
>                "16h8g4acy7fgfxcjacr3wijjsnixwsfd2jhz3zwdi2qrzi262l5f"))))
> 
> [back]
> 
> I guess this is because gzip itself is a patch input.  Is this something
> that can be fixed, or do we have to use "patching phases" in these cases?

Its also in commencement.scm, so that might be the loop instead. You
could try "unpatching" it there. It looks like it has a pseudo-package
inside of glibc-utf8-locales-final, with grep-final a few packages lower
being potential inspiration for undoing the modifications in "real
gzip".


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Efraim Flashner   <efraim <at> flashner.co.il>   אפרים פלשנר
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