Switch to db4.1

(Logical change 1.14)
diff --git a/misc/Makefile b/misc/Makefile
index 685b004..4e49497 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -22,7 +22,7 @@
 	$(CC) $(CFLAGS) $(LDFLAGS) -o rtacct $(RTACCTOBJ) $(LIBNETLINK) -lm
 
 arpd: $(ARPDOBJ)
-	$(CC) $(CFLAGS) $(LDFLAGS) -o arpd $(ARPDOBJ) $(LIBNETLINK) -ldb
+	$(CC) $(CFLAGS) $(LDFLAGS) -o arpd $(ARPDOBJ) $(LIBNETLINK) -ldb-4.1
 
 rtstat: $(RTSTATOBJ)
 	$(CC) $(CFLAGS) $(LDFLAGS) -o rtstat $(RTSTATOBJ)
diff --git a/misc/arpd.c b/misc/arpd.c
index 4590daf..fd8f7ca 100644
--- a/misc/arpd.c
+++ b/misc/arpd.c
@@ -16,7 +16,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <netdb.h>
-#include <db.h>
+#include <db41/db_185.h>
 #include <sys/ioctl.h>
 #include <sys/poll.h>
 #include <errno.h>