From: Chris Lamb <lamby@debian.org>
Date: Tue, 16 Oct 2018 09:39:37 +0200
Subject: Make the build reproducible

Last-Update: 2016-08-19
---
 Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 871fa87..68283b9 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,11 @@
 
 
 VER_VERSION=0.0.13
-VER_DATE=`date +"%Y-%m-%d"`
+ifdef SOURCE_DATE_EPOCH
+	VER_DATE=$(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "+%Y-%m-%d" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "+%Y-%m-%d" 2>/dev/null || date -u "+%Y-%m-%d")
+else
+	VER_DATE=$(shell date "+%Y-%m-%d")
+endif
 
 
 # Where to install things: