diff --git a/cv4/Makefile b/cv4/Makefile
index e69de29..544a2c0 100644
--- a/cv4/Makefile
+++ b/cv4/Makefile
@@ -0,0 +1,13 @@
+CFLAGS= -std=c99 -g -Wall
+
+all: train
+
+%.o: %.c
+    gcc -c -o $@ $< $(CFLAGS)
+
+train: main.o a_train.o
+	gcc main.o a_train.o -o train 
+
+clean:
+	rm *.o train
+