From 95cebd4144dbec069e39e04a95523b06eac82b0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
Date: Thu, 4 May 2017 15:40:18 +0200
Subject: [PATCH] build: export SOURCE_DATE_EPOCH

SOURCE_DATE_EPOCH is used to set various timestamps in build
products, and was introduced as part of the reproducible
builds efforts.

this is a great help for future build system restructuring,
as the "diffoscope"-diff of the produced .debs is now small
enough to catch unintended changes.
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index a2ca354..2deadfa 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,7 @@ HDRPACKAGE=pve-headers-${KVNAME}
 ARCH=amd64
 GITVERSION:=$(shell cat .git/refs/heads/master)
 CHANGELOG_DATE:=$(shell dpkg-parsechangelog -SDate -lchangelog.Debian)
+export SOURCE_DATE_EPOCH ?= $(shell dpkg-parsechangelog -STimestamp -lchangelog.Debian)
 
 SKIPABI=0