VMS Help CC, Messages, PREOPTW  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        A problem was detected in the processing of a <option
                spelling> option:  <#define or #undefine problem>

 Description    A problem was encountered during the processing of a
                macro definition specified on the command line.  The
                message should provide additional information about
                the problem.

 User Action    Correct the command-line argument.