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

 Message        Illegal token from macro call in #line directive.

 Description    A #line directive was followed by a macro whose
                expansion did not form a valid argument to the
                directive.  The #line directive should be followed by
                either a digit sequence or a digit sequence followed
                by a string literal.  The #line directive will be
                ignored.

 User Action    Supply a valid argument to the #line directive.