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Re: [bug] Xen build doesn't fail when required tools are missing
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 11 Jul 2024 12:07:55 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <jgrall@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, Anthony Perard <anthony@xxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 11 Jul 2024 10:08:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11.07.2024 11:55, Andrew Cooper wrote:
> So I was playing with rebuilding the OpenSUSE Tumbleweed container from
> scratch. (I've ~halfed it's size by correcting the dependencies).
>
> When diffutils is missing (package containing the `cmp` utility), a
> build of Xen proceeds as:
>
> make: Entering directory '/build/xen'
> make: hostname: No such file or directory
> UPD include/xen/compile.h
> Xen 4.19-rc
> /bin/sh: line 1: cmp: command not found
> UPD include/compat/.xlat/xen.lst
> /bin/sh: line 1: cmp: command not found
> UPD include/compat/.xlat/arch-x86/pmu.lst
> /bin/sh: line 1: cmp: command not found
> /bin/sh: line 1: cmp: command not found
>
> without failing.
Build-wise that's correct behavior: "cmp" missing means the filechk
rule will update the file, even if in reality it may not need updating.
The resulting build therefore is going to be correct. The error messages
may be irritating, yet if we silenced them you wouldn't have noticed the
missing tool.
Jan
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