[4009] Added missing includes to prevent build failures on Centos.

src/lib/dhcp/duid.h

@@ -16,9 +16,8 @@
 #define DUID_H
 
 #include <asiolink/io_address.h>
-
+#include <boost/shared_ptr.hpp>
 #include <vector>
-
 #include <stdint.h>
 #include <unistd.h>
 

src/lib/dhcp/tests/iface_mgr_unittest.cc

@@ -28,6 +28,7 @@
 #include <boost/scoped_ptr.hpp>
 #include <gtest/gtest.h>
 
+#include <fcntl.h>
 #include <fstream>
 #include <iostream>
 #include <sstream>

src/lib/dhcp/tests/pkt_filter_unittest.cc

@@ -17,6 +17,7 @@
 #include <dhcp/iface_mgr.h>
 #include <dhcp/tests/pkt_filter_test_utils.h>
 #include <gtest/gtest.h>
+#include <fcntl.h>
 
 using namespace isc::asiolink;
 using namespace isc::dhcp;