/*****************************************************************************
- * RRDtool 1.3rc7 Copyright by Tobi Oetiker, 1997-2008
+ * RRDtool 1.3.0 Copyright by Tobi Oetiker, 1997-2008
*****************************************************************************
* rrd_format.h RRD Database Format header
*****************************************************************************/
#ifndef _RRD_FORMAT_H
#define _RRD_FORMAT_H
+/*
+ * _RRD_TOOL_H
+ * We're building RRDTool itself.
+ *
+ * RRD_EXPORT_DEPRECATED
+ * User is requesting internal function which need this struct. They have
+ * been told that this will change and have agreed to adapt their programs.
+ */
+#if !defined(_RRD_TOOL_H) && !defined(RRD_EXPORT_DEPRECATED)
+# error "Do not include rrd_format.h directly. Include rrd.h instead!"
+#endif
+
#include "rrd.h"
/*****************************************************************************