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Date: Tue, 11 Nov 2014 14:15:44 +0100
From: John Spencer <>
Subject: Re: musl-cross toolchains now unusable in Buildroot

Thomas Petazzoni wrote:
> Hello,
> Since quite a while, we've added support in Buildroot for the pre-built
> toolchains provided by musl-cross. This was a great way for people to
> test very easily the musl C library, and therefore get more people to
> use it.
> We're currently using the 1.1.1 version of the toolchain.
> Unfortunately, since version 1.1.2, two things have changed that
> prevent us from using the pre-built toolchains:
>  * The toolchains have the sysroot mechanism disabled. For an unknown
>    reason, in commit
>    the sysroot feature was disabled. This is weird, as essentially all
>    modern toolchains have the sysroot feature enabled. This is
>    essential for Buildroot to use a pre-built toolchain.
>    I've filled
>    about this issue.
>  * The absence of complete kernel headers. I don't know if it's related
>    to the change to use the sanitized headers from the Sabotage
>    project, or some other change, but the toolchain no longer has the
>    <linux/...> directory, which normally contains files such as
>    <linux/version.h>. This is for example causing a problem as
>    Buildroot checks the kernel headers version using <linux/version.h>,
>    though this particular aspect could potentially be fixed.
>    I've filled
>    about this issue.

there's already an issue filed here

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