INTUNDFUN

Message        There is no function declaration visible for the
               identifier "<name>" at the point of this #pragma
               <pragma type>.

Description    An identifier specified in a #pragma intrinsic or
               #pragma function directive must refer to a function
               declaration visible at the point of the pragma.  The
               identifier will be ignored.

User Action    Either remove the identifer from the pragma, correct
               its spelling, or reorder the source to ensure that a
               declaration of the identifier as a function is
               visible at the point of the pragma.