Minor changes

Makefile

@@ -3,16 +3,20 @@ include $(CONF)
 CC="gcc"
 CFLAGS=
 
+MACROS=\
+-DZMQ_TOKEN=\"$(ZMQ_TOKEN)\" \
+-DZMQ_MSG_SIZE=$(ZMQ_MSG_SIZE)
+
 all: publisher subscriber logger
 
 publisher: src/publisher.c src/utils.c
-	$(CC) -lzmq $^ -o $@
+	$(CC) -lzmq $^ -o $@ $(MACROS)
 
 subscriber: src/subscriber.c src/utils.c
-	$(CC) -lzmq $^ -o $@
+	$(CC) -lzmq $^ -o $@ $(MACROS)
 
 logger: src/logger.c src/utils.c
-	$(CC) $^ -o $@
+	$(CC) $^ -o $@ $(MACROS)
 
 publish: publisher logger
 	[ -f pid ] && { kill $(shell cat pid); rm pid; }