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

 Message        __VA_ARGS__ may not appear except in a function-like
                macro that uses the ellipsis notation in the
                parameters.

 Description    The identifier __VA_ARGS__ may only appear in the
                replacement list of a function-like macro definion
                that uses ellipsis notation in the parameters.

 User Action    Either remove __VA_ARGS__ or change its spelling.