Implement prerequisites

Makefile

@@ -1,9 +1,10 @@
 
 CC = g++
-CFLAGS =
+CFLAGS = -Iinc -pthread -lrt
+VPATH = src
 
-OBJECTS := %.o list.o
-EXECUTE := main.out
+OBJECTS := %.o list.o producer.o transformer.o consumer.o
+EXECUTE := main.out test.out
 
 .PHONY: all clean