From 3337b9ffee40c1ff39236db50c30a10960c2873b Mon Sep 17 00:00:00 2001
From: Leonid Pliushch <leonid.pliushch@gmail.com>
Date: Wed, 19 May 2021 13:19:23 +0300
Subject: [PATCH] build-package.sh: compatibility with "reproducible builds"

Though git method of getting persistent timestamp won't work in submodules
and snapshots and will fallback to current date.
---
 build-package.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-package.sh b/build-package.sh
index c1dc2829bc..a4b2b9dc1b 100755
--- a/build-package.sh
+++ b/build-package.sh
@@ -3,7 +3,7 @@
 
 set -e -o pipefail -u
 
-SOURCE_DATE_EPOCH=$(date "+%s")
+SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct 2>/dev/null || date "+%s")
 export SOURCE_DATE_EPOCH
 
 : "${TMPDIR:=/tmp}"