/sys$common/syshlp/helplib.hlb CC, Messages, DUPLABEL  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        The label "<name>" is already defined in this
                procedure at <location>.

 Description    A label has already been defined.  Each function can
                define each label only once.

 User Action    Remove the duplicate label definition.