--- /dev/null
+/*
+ * libgstvaapi_priv_check.h - Check file is included from within libgstvaapi
+ *
+ * Copyright (C) 2014 Intel Corporation
+ * Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ */
+
+#ifndef IN_LIBGSTVAAPI
+# error "This file is only meant to be included from within libgstvaapi"
+#endif