Minor changes

Makefile

@@ -0,0 +1,12 @@
+CC="gcc"
+
+all: publisher
+
+publisher:
+	echo "Building publisher..."
+	$(MAKE) -C src/publisher/ CC=$(CC) OUT=$(PWD)
+
+clean:
+	$(MAKE) clean -C src/publisher/ CC=$(CC) OUT=$(PWD)
+
+.PHONY: clean

src/publisher/Makefile

@@ -0,0 +1,10 @@
+EXEC=publisher
+CFLAGS=-lzmq
+
+all: main.c
+	$(CC) $^ -o $(OUT)/$(EXEC) $(CFLAGS)
+
+clean:
+	rm -f $(OUT)/$(EXEC)
+
+.PHONY: clean

src/publisher/main.c

@@ -0,0 +1,7 @@
+
+
+
+int main(){
+
+  return 0;
+}