From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Doug Goldstein <cardoe@cardoe.com>, xen-devel@lists.xen.org
Cc: Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
Keir Fraser <keir@xen.org>,
Ian Campbell <ian.campbell@citrix.com>,
Jan Beulich <jbeulich@suse.com>
Subject: Re: [PATCH] build: disable default built-in rules and variables
Date: Tue, 1 Dec 2015 21:54:36 +0000 [thread overview]
Message-ID: <565E171C.4030000@citrix.com> (raw)
In-Reply-To: <1449004777-26397-1-git-send-email-cardoe@cardoe.com>
On 01/12/2015 21:19, Doug Goldstein wrote:
> Disable the built-in rules and variables from GNU make to improve
> build performance and avoid awkward corner cases with the built-in
> rules. Currently none of the implicit rules are used but this is helpful
> to do when developing changes to the build system.
>
> Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Trying this out, it reliably drops Xen's build time from ~58s to ~52s on
the dev box I have to hand.
~Andrew
prev parent reply other threads:[~2015-12-01 21:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 21:19 [PATCH] build: disable default built-in rules and variables Doug Goldstein
2015-12-01 21:54 ` Andrew Cooper [this message]
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