/DEBUG

  The /DEBUG qualifier causes the compiler to provide  information  for  the
  OpenVMS  Debugger  and  the  system  run-time  error  traceback mechanism.
  Neither TRACEBACK nor SYMBOLS affects a program's executable code.

  The format of the /DEBUG qualifier is as follows:

     /[NO]DEBUG[=({[NO]SYMBOLS  },...)]
                  {[NO]TRACEBACK}
                  {ALL          }
                  {NONE         }

  where:

     SYMBOLS        causes the compiler to provide the debugger  with  local
                    symbol definitions for user-defined variables (including
                    dimension information for arrays).

     TRACEBACK      causes the compiler to provide  an  address  correlation
                    table  so  the debugger and the run-time error traceback
                    mechanism can translate absolute addresses  into  source
                    program routine names and line numbers.

  The /NODEBUG qualifier causes the compiler to suppress information for the
  OpenVMS Debugger and the system run-time error traceback mechanism.

  For more information on debugging, see the HP BASIC for OpenVMS Alpha  and
  VAX Systems User Manual.

  The default is /DEBUG = (TRACEBACK, NOSYMBOLS).