From 0e70661808dea7cfe82e3a4ec3fb40e1dce4971c Mon Sep 17 00:00:00 2001
From: "Peter J. Holzer" <hjp@hjp.at>
Date: Sat, 4 Sep 2021 22:55:20 +0200
Subject: [PATCH] Add rule to create plots

---
 GNUmakefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/GNUmakefile b/GNUmakefile
index 573253b..a20fe79 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,2 +1,5 @@
 CFLAGS = -std=c11 -Wall -ftrapv
 all: timezone-history
+
+%.png: %
+	tsplot --time_t --finalresolution 300  $^ > $@