+extern Movers & theMovers();
+/// @c returns the Mover registered for format @c fmt.
+extern Mover const & getMover(std::string const & fmt);
+/** Register a specialised @c command to be used to copy a file
+ * of format @c fmt.
+ */
+extern void setMover(std::string const & fmt, std::string const & command);
+extern Movers & theSystemMovers();
+
+
+} // namespace lyx