--- Makefile~
+++ Makefile
@@ -1,4 +1,6 @@
 # Comments: a sample makefile 
+AR = ar
+RANLIB = ranlib
 CC = g++
 CFLAGS = -g3
 INCLUDES = -I.
@@ -6,12 +8,19 @@
 #LIBS = -lm
 SOURCES := $(wildcard *.cpp)
 OBJS := $(patsubst %.cpp,%.o, $(SOURCES)) 
+all: Sample library
 Sample: $(OBJS)
 	$(CC) -o xecho $(CFLAGS) $(OBJS) $(LIBS)
 %.o: %.cpp file.h
 	$(CC) -c $(CFLAGS) $(INCLUDES) -o $@ $<
+library: libxstunt.a libxstunt.so
+libxstunt.a: Client.o
+	$(AR) cr libxstunt.a Client.o
+	$(RANLIB) libxstunt.a
+libxstunt.so: Client.o
+	$(CC) -shared -o libxstunt.so Client.o
 clean: 
-	rm -f *.o 
+	rm -f *.o *.a *.so
 realclean: 
 	rm -f xecho *.o