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Re: [XEN PATCH v3 2/2] Config.mk: evaluate XEN_COMPILE_ARCH and XEN_OS immediately
- To: Anthony PERARD <anthony.perard@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 31 Jul 2023 12:50:38 +0200
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- Cc: Jason Andryuk <jandryuk@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 31 Jul 2023 10:50:42 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 27.07.2023 16:54, Anthony PERARD wrote:
> With GNU make 4.4, the number of execution of the command present in
> these $(shell ) increased greatly. This is probably because as of make
> 4.4, exported variable are also added to the environment of $(shell )
> construct.
>
> So to avoid having these command been run more than necessary, we
> will replace ?= by an equivalent but with immediate expansion.
>
> Reported-by: Jason Andryuk <jandryuk@xxxxxxxxx>
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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