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

 Message        The function "<routine name>" is a builtin function
                reserved to the compiler, and does not require a
                #pragma intrinsic.  The function will continue to be
                treated as a builtin.

 Description    A function identifier specified in a #pragma function
                intrinsic is the name of a builtin function.  These
                functions cannot be explicitly enabled, they are
                always handled as builtin functions.

 User Action    Remove the inappropriate use of the pragma.