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

   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 Compaq BASIC for OpenVMS  Alpha
   and VAX Systems User Manual.

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