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MACRO, /MIGRATION, Qualifiers, /DISABLE

 *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /DISABLE=(option[,...])
       /NODISABLE

    Provides initial settings for the compiler functions that can be
    controlled by the .DISABLE and .ENABLE MACRO directives.

    You can specify one or more of the following functions:

    Option      Description

    DEBUG       Excludes local symbol table information in
                the object file for use with the debugger.
                If the /DEBUG qualifier is also specified,
                it overrides /DISABLE=(DEBUG,TRACEBACK) or
                /ENABLE=(DEBUG,TRACEBACK), regardless of their order
                on the command line.
    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 Prevents the listing of unreferenced symbols in the
                symbol table.
    TRACEBACK   Disables the provision of traceback information
                to the debugger. If the /DEBUG qualifier is also
                specified, it overrides /DISABLE=(DEBUG,TRACEBACK) or
                /ENABLE=(DEBUG,TRACEBACK), regardless of their order
                on the command line.

    By default, at compiler activation, FLAGGING, GLOBAL, and
    SUPPRESSION are enabled, and DEBUG, OVERFLOW, QUADWORD, and
    TRACEBACK are disabled.

    The /NODISABLE qualifier has the same effect as omitting the
    /DISABLE qualifier. It can also be used to negate the effects of
    any /DISABLE qualifiers specified earlier in the command line.

                                   NOTE

       If /DISABLE is used two or more times in the command line,
       the last /DISABLE will override all previous uses of
       /DISABLE. The options not specified in the final /DISABLE
       will revert to their default values.

       Furthermore, if /ENABLE and /DISABLE are used in the same
       command line for the same option, /DISABLE will always
       prevail, regardless of its position in the command line.

       Workaround-If you want to disable two or more options,
       specify them in the following way:

       /DISABLE=(xxxx, yyyy)
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