From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sun Sep 24 02:00:00 2023 +0200
Subject: xen: docs: Use predictable ordering.

What follows was taken verbatim from Debian.  See:
https://sources.debian.org/patches/xen/4.14.5%2B94-ge49571868d-1/

From: =?utf-8?b?IkZyw6lkw6lyaWMgUGllcnJldCAoZmVwaXRyZSki?=
 <frederic.pierret@qubes-os.org>
Date: Wed, 4 Nov 2020 09:24:40 +0100
Subject: xen: don't have timestamp inserted in config.gz
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This is for improving reproducible builds.

Signed-off-by: Frédéric Pierret (fepitre) <frederic.pierret@qubes-os.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
(cherry picked from commit 5816d327e44ab37ae08730f4c54a80835998f31f)
---
 xen/common/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/common/Makefile b/xen/common/Makefile
index 06881d0..32cd650 100644
--- a/xen/common/Makefile
+++ b/xen/common/Makefile
@@ -77,7 +77,7 @@ obj-$(CONFIG_HAS_DEVICE_TREE) += libfdt/
 
 CONF_FILE := $(if $(patsubst /%,,$(KCONFIG_CONFIG)),$(XEN_ROOT)/xen/)$(KCONFIG_CONFIG)
 config.gz: $(CONF_FILE)
-	gzip -c $< >$@
+	gzip -n -c $< >$@
 
 config_data.o: config.gz