VMS Help FORTRAN, Error Messages, Compilation Errors, OPTLV4CHK  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  W

  MESSAGE TEXT:  /OPTIMIZE=LEVEL=4 conflicts with /CHECK=BOUNDS;
  /OPTIMIZE=LEVEL=4 ignored

  EXPLANATION:  When you specify /CHECK=BOUNDS, you cannot use
  /OPTIMIZE=LEVEL=4.  A lower level of optimization has been used.