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Date: Tue, 29 Oct 2019 22:18:21 +0200
From: Adrian Bunk <bunk@stusta.de>
To: Dan Callaghan <dan.callaghan@opengear.com>
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	<20191015224456.22136-1-dan.callaghan@opengear.com>
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Cc: openembedded-core@lists.openembedded.org
Subject: Re: [PATCH v3] elfutils: add PACKAGECONFIG for compression algorithms
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On Wed, Oct 16, 2019 at 08:44:56AM +1000, Dan Callaghan wrote:
> Elfutils has optional support for bzip2 and xz (lzma). It uses
> this for decompressing embedded ELF sections like the .gnu_debugdata
> section for "mini debuginfo":
> 
> https://sourceware.org/gdb/onlinedocs/gdb/MiniDebugInfo.html
>...
> +PACKAGECONFIG ??= "bzip2"
> +PACKAGECONFIG[bzip2] = "--with-bzlib,--without-bzlib,${DEPENDS_BZIP2}"
> +PACKAGECONFIG[xz] = "--with-lzma,--without-lzma,xz"
>...

Is any tooling actually doing this compression by default?

It is a bit surprising that this has the mostly-obsolete bzip2 enabled 
by default but not the more common (and better compressing) xz.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed