/sys$common/syshlp/helplib.hlb FORTRAN, Error Messages, Compilation Errors, INTFUNARG  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  E

  MESSAGE TEXT:  Arguments incompatible with intrinsic function,
  assumed EXTERNAL

  EXPLANATION:  A function reference was made using an intrinsic
  function name, but the argument list does not agree in order,
  number, or type with the intrinsic function requirements.  When
  this error occurs, the function is assumed to be supplied by you as
  an EXTERNAL function.