VMS Help CC, Messages, DCLMISMATLNK1  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <where> "<name>" <modifier>has a floating type but
                its linkage "<name>" specifies an integer register.
                Standard linkage will be used.

 Description    A parameter or return value of a function type is a
                floating type, but the corresponding parameter or
                return value in the special linkage specifies an
                integer register.  The special linkage was specified
                via the #pragma use_linkage directive.  Because of
                this mismatch, the compiler will ignore the special
                linkage and use the standard linkage instead.

 User Action    Make sure the register specified by the special
                linkage matches the type of of the corresponding
                parameter and return value of the function type.