VMS Help MACRO, /MIGRATION, Compiler Directives, .DISABLE, Parameters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 argument-list

    You can use one or more of the symbolic arguments listed in the
    following table:

    Option      Description

    DEBUG       Excludes local symbol table information in the object
                file for use with the debugger.
    FLAGGING    Deactivates compiler flagging.
    GLOBAL      Disables the assumption that undefined symbols are
                external symbols.
    OVERFLOW    Deactivates production of overflow trap code for the
                following opcodes: ADDx, ADWC, INCx, ADAWI, SUBx,
                SBWC, DECx, MNEGx, MULx, CVTxy (where x is greater
                than y, for example CVTLB), AOBxx, ACBL, and SOBxx.
    QUADWORD    Disables support for quadword literal and address
                expressions.
    SUPPRESSION Stops the listing of unreferenced symbols in the
                symbol table.
    TRACEBACK   Stops providing traceback information to the
                debugger.