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

[Olaf Hering <olaf@xxxxxxxxx>]

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
+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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