Add network statistics to ddsrt

Signed-off-by: Erik Boasson <eb@ilities.com>

src/ddsrt/cmake/netstat.c

@@ -0,0 +1,18 @@
+/*
+ * Copyright(c) 2006 to 2018 ADLINK Technology Limited and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
+ * v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+#include "dds/ddsrt/netstat.h"
+
+#if DDSRT_HAVE_NETSTAT
+# error "cmake_HAVE_NETSTAT=true"
+#else
+# error "cmake_HAVE_NETSTAT=false"
+#endif