diff --git a/networking/udhcp/Makefile.in b/networking/udhcp/Makefile.in
index 369308e..5d6176b 100644
--- a/networking/udhcp/Makefile.in
+++ b/networking/udhcp/Makefile.in
@@ -33,11 +33,22 @@
 endif
 endif
 
+ifeq ($(CONFIG_UDHCPD), y)
+CONFIG_UDHCP_LEASES_FILE=y
+else
+ifeq ($(CONFIG_UDHCPD), y)
+CONFIG_UDHCP_LEASES_FILE=y
+else
+CONFIG_UDHCP_LEASES_FILE=n
+endif
+endif
+
 UDHCP-y:=
-UDHCP-$(CONFIG_UDHCP_SHARED)	+= options.c socket.c packet.c pidfile.c
+UDHCP-$(CONFIG_UDHCP_SHARED)    += options.c socket.c packet.c common.c
 UDHCP-$(CONFIG_UDHCPC)		+= dhcpc.c clientpacket.c script.c
 UDHCP-$(CONFIG_UDHCPD)		+= dhcpd.c arpping.c files.c leases.c serverpacket.c
 UDHCP-$(CONFIG_DUMPLEASES)	+= dumpleases.c
+UDHCP-$(CONFIG_UDHCP_LEASES_FILE) += leases_file.c
 UDHCP_OBJS=$(patsubst %.c,$(UDHCP_DIR)%.o, $(UDHCP-y))
 
 libraries-y+=$(UDHCP_DIR)$(UDHCP_AR)
@@ -46,5 +57,5 @@
 	$(AR) -ro $@ $(UDHCP_OBJS)
 
 $(UDHCP_OBJS): %.o : %.c
-	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -DIN_BUSYBOX -c $< -o $@
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c $< -o $@