From 7e824a4f39cdd6c7ffb6b2a505cf9c14fbe69190 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Thu, 1 Jun 2017 12:10:38 +0200
Subject: build: use single threaded compression for reproducible builds

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

diff --git a/Makefile b/Makefile
index 0c4e072..3aefd8d 100644
--- a/Makefile
+++ b/Makefile
@@ -80,7 +80,7 @@ vis-single-payload.inc: $(EXECUTABLES) lua/*
 	echo '#define VIS_SINGLE_PAYLOAD_H' >> $@
 	echo 'static unsigned char vis_single_payload[] = {' >> $@
 	tar --sort=name --mtime='2014-07-15 01:23Z' --owner=0 --group=0 --numeric-owner -c \
-		$(EXECUTABLES) $$(find lua -name '*.lua') | xz | od -t x1 -A none -v | \
+		$(EXECUTABLES) $$(find lua -name '*.lua') | xz -T 1 | od -t x1 -A none -v | \
 		sed 's/\([0-9a-f]\+\)/0x\1,/g;$$s/,$$/ };/' >> $@
 	echo '#endif' >> $@
 
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