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Re: OS detection wrong on Alpine Linux 3.10

From: Ben Elliston
Subject: Re: OS detection wrong on Alpine Linux 3.10
Date: Sun, 20 Sep 2020 10:29:09 +1000

On Sat, Sep 19, 2020 at 03:30:54PM +0200, Bruno Haible wrote:

> The value of $host_os, determined by the current config.guess, is:
>   - On Alpine Linux 3.9: linux-musl
>   - On Alpine Linux 3.10: linux-gnu
>   - On Alpine Linux 3.12: linux-musl
> The reason is that config.guess tests 'ldd --version'. However, in
> Alpine Linux 3.10, /usr/bin/ldd has been replaced with a shell script
> that does not understand the --version option:

Does it strike you that perhaps this could be fixed more quickly in
Alpine ldd instead? The problem affects Alpine Linux 3.10, but not
later versions, it seems, and 3.10 becomes unsupported after May 1
next year. By the time this fix is propagated into packages that
include config.guess, I imagine most users will have upgraded to

The command line interface of system programs should remain stable.

Cheers, Ben

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