+/**
+ * \file lengthcommon.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Lars Gullik Bjønnes
+ * \author Matthias Ettrich
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
#include <config.h>
#include "lengthcommon.h"
#include "gettext.h"
+using std::string;
+
int const num_units = LyXLength::UNIT_NONE;