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

 Message        The function <name> is declared both <this> and
                <that>.

 Description    A function is declared with more than one of the
                forceinline, inline, or noinline attributes.  It will
                be given the attribute that will provide the most
                optimization.

 User Action    Make sure each function has only one of the
                attributes.