diff -ur b/tools-20070815/uml_net/ethertap.c a/tools-20070815/uml_net/ethertap.c --- b/tools-20070815/uml_net/ethertap.c 2003-11-08 15:15:25.000000000 +0200 +++ a/tools-20070815/uml_net/ethertap.c 2016-04-22 17:48:55.699997872 +0200 @@ -13,6 +13,7 @@ #include #include #include +#include #include "host.h" #include "output.h" diff -ur b/tools-20070815/uml_net/host.c a/tools-20070815/uml_net/host.c --- b/tools-20070815/uml_net/host.c 2006-02-27 22:19:52.000000000 +0200 +++ a/tools-20070815/uml_net/host.c 2016-04-22 17:49:16.629997867 +0200 @@ -10,6 +10,7 @@ #include #include #include +#include #include "output.h" #include "host.h"