From 9fa521b60ca0bbd78f5121bcd9a8f740c72064ff Mon Sep 17 00:00:00 2001
From: hjp <hjp>
Date: Tue, 5 Jul 2016 19:42:18 +0000
Subject: [PATCH] Add target clean

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

diff --git a/collatz/GNUmakefile b/collatz/GNUmakefile
index 8eb0511..a4c30a5 100644
--- a/collatz/GNUmakefile
+++ b/collatz/GNUmakefile
@@ -5,3 +5,6 @@ collatz:
 
 collatz2: collatz2.o
 	$(CC) -o $@ $^ -lm
+
+clean:
+	rm -f collatz collatz2 collatz3 modf *.o core