diff --git a/libraries/libmdb/Makefile b/libraries/libmdb/Makefile
index f9cf075..3948905 100644
--- a/libraries/libmdb/Makefile
+++ b/libraries/libmdb/Makefile
@@ -5,10 +5,10 @@ CFLAGS	= -pthread $(OPT) $(W) $(XCFLAGS)
 LDLIBS	=
 
 PROGS	= mdb_stat mtest mtest2 mtest3
-all:	libmdb.a $(PROGS)
+all:	libmdb.a libmdb.so $(PROGS)
 
 clean:
-	rm -rf $(PROGS) *.[ao] *~ testdb
+	rm -rf $(PROGS) *.[ao] *.so *~ testdb
 
 test:	all
 	mkdir testdb
@@ -17,11 +17,20 @@ test:	all
 libmdb.a:	mdb.o idl.o
 	ar rs $@ mdb.o idl.o
 
+libmdb.so:	mdb.o idl.o
+	gcc -shared -o $@ mdb.o idl.o
+
 mdb_stat: mdb_stat.o libmdb.a
 mtest:    mtest.o    libmdb.a
 mtest2:	mtest2.o libmdb.a
 mtest3:	mtest3.o libmdb.a
 
+mdb.o: mdb.c mdb.h idl.h
+	$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -c mdb.c
+
+idl.o: idl.c idl.h
+	$(CC) $(CFLAGS) -fPIC $(CPPFLAGS) -c idl.c
+
 %:	%.o
 	$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@