Re: [Buildroot] [PATCH v2] package/busybox: fix build with glibc 2.39

From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: Fred Lefranc <fred.lefranc.evs@gmail.com>
Cc: Fred Lefranc <fred.lefranc+evs@gmail.com>, buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH v2] package/busybox: fix build with glibc 2.39
Date: Mon, 15 Jul 2024 16:08:09 +0200	[thread overview]
Message-ID: <20240715160809.351cdc89@windsurf> (raw)
In-Reply-To: <20240715111003.1296141-1-fred.lefranc+evs@gmail.com>

Hello Fred,

On Mon, 15 Jul 2024 13:10:02 +0200
Fred Lefranc <fred.lefranc.evs@gmail.com> wrote:

> When glibc was bumped to version 2.39 in commit
> b5680f53d60acf8ff6010082f873438a39bd5d97 it removed the deprecated
> libcrypt support.
> 
> As glibc's libcrypt was providing systemd's libcrypt dependency this
> broke any systemd build using glibc version 2.39.
> 
> To fix this add the libxcrypt dependency to busybox which is the
> preferred way of providing libcrypt support in busybox as the glibc
> variant is only used as a fallback due to being deprecated.

I'm sorry but I don't follow you on this last paragraph, in particular
the part "as the glibc variant is only used as a fallback due to being
deprecated".

What happens is that recent glibc versions no longer provide libcrypt,
so libxcrypt should be used as a replacement. And it's up to the user
to enable BR2_PACKAGE_LIBXCRYPT if the user enables an applet in the
Busybox configuration that needs lib(x)crypt features.

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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