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

  SEVERITY:  I

  MESSAGE TEXT:  Dependence analysis inhibited due to call in DO-loop
  and COMMON loop control variable

  EXPLANATION:  Dependence analysis is not performed on DO-loops that
  have a control variable specified within a COMMON block and a
  reference to an external routine.  The analysis is not done because
  of the potential for changing the control variable in the external
  routine.