Index: boreas/alivedetection.c
--- boreas/alivedetection.c.orig
+++ boreas/alivedetection.c
@@ -31,15 +31,13 @@
 #include <arpa/inet.h>
 #include <errno.h>
 #include <ifaddrs.h> /* for getifaddrs() */
-#include <net/ethernet.h>
-#include <net/if.h> /* for if_nametoindex() */
-#include <net/if_arp.h>
+
 #include <netinet/icmp6.h>
 #include <netinet/ip.h>
 #include <netinet/ip6.h>
 #include <netinet/ip_icmp.h>
 #include <netinet/tcp.h>
-#include <netpacket/packet.h> /* for sockaddr_ll */
+
 #include <pcap.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -290,7 +288,7 @@ scan (alive_test_t alive_test)
   gettimeofday (&end_time, NULL);
 
   g_message ("Alive scan %s finished in %ld seconds: %d alive hosts of %d.",
-             scan_id, end_time.tv_sec - start_time.tv_sec,
+             scan_id, end_time.tv_usec - start_time.tv_usec,
              g_hash_table_size (scanner.hosts_data->alivehosts),
              number_of_targets);
   g_free (scan_id);