From e72ccf8d6a5f167ef5e3b4df19c19bcb9f5ed263 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Wed, 31 May 2017 15:35:20 +0200
Subject: build: try to make docker build reproducible

---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 653657f..6be1b62 100644
--- a/Makefile
+++ b/Makefile
@@ -79,7 +79,8 @@ vis-single-payload.inc: $(EXECUTABLES) lua/*
 	echo '#ifndef VIS_SINGLE_PAYLOAD_H' > $@
 	echo '#define VIS_SINGLE_PAYLOAD_H' >> $@
 	echo 'static unsigned char vis_single_payload[] = {' >> $@
-	tar c $(EXECUTABLES) $$(find lua -name '*.lua') | xz | od -t x1 -A none -v | \
+	tar --sort=name --mtime='2014-07-15 01:23Z' --owner=0 --group=0 --numeric-owner -c \
+		$(EXECUTABLES) $$(find lua -name '*.lua') | xz | od -t x1 -A none -v | \
 		sed 's/\([0-9a-f]\+\)/0x\1,/g;$$s/,$$/ };/' >> $@
 	echo '#endif' >> $@
 
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