--- mdk3-v4/Makefile	(original)
+++ mdk3-v4/Makefile	(patched)
@@ -10,9 +10,9 @@
 LIBOSD		= $(OSD)/lib$(OSD).so
 
 
-all: osd mdk3
+all: mdk3
 
-osd:
+$(OSD)/libosdep.a:
 	$(MAKE) -C $(OSD)
 
 $(LIBOSD):