Re: [Xen-devel] [PATCH 3/5] INSTALL: mention variables for reproducible builds

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Fri, 2015-03-20 at 18:24 +0100, Olaf Hering wrote:
> Mention two variables introduced by commit ac977f5 ("use more fixed
> strings to build the hypervisor").
> 
> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Jan Beulich <jbeulich@xxxxxxxx>
> Cc: Keir Fraser <keir@xxxxxxx>
> Cc: Tim Deegan <tim@xxxxxxx>
> ---
>  INSTALL | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/INSTALL b/INSTALL
> index 33f65ba..eac34b4 100644
> --- a/INSTALL
> +++ b/INSTALL
> @@ -209,6 +209,12 @@ changed with these variables.
>  XEN_WHOAMI=
>  XEN_DOMAIN=
>  
> +Some components of xen and tools will include an unpredictable timestamp
> +into the binaries. To allow reproducible builds the following variables
> +can be used to provide fixed timestamps in the expected format.
> +XEN_BUILD_DATE=any

I'm not sure what this implies I'm allowed to pass here...

Perhaps both cases would benefit from adding "(e.g. something like hte
output from <...>)" where <...> is the date invocation which is used if
the variable isn't set?

> +XEN_BUILD_TIME=hh:mm:ss
> +
>  The following variables can be used to tweak some aspects of the
>  hypervisor build.
>  verbose=y



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