/sys$common/syshlp/helplib.hlb CC, Messages, FUNCNOTDEF  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        The function "<name>" has non-extern storage class,
                occurs in a context that requires its definition, and
                has no definition.  The storage class has been
                changed to extern.

 Description    In certain modes, the compiler will allow a static
                function to be declared within the scope of another
                function.  If this function is referenced, then it
                must also be defined in the compilation unit.  If the
                function is not defined, this message will be output,
                and the earlier static declaration will be changed to
                extern.

 User Action    Define the static function with compilation unit.