The MACRO option invokes the MACRO preprocessor.
.-NOMACRO-. >>-+-MACRO---+-------------------------------------------------><
ABBREVIATIONS: M, NM
You may also invoke the MACRO preprocessor via the PP(MACRO) option. However, the use of both the MACRO option and the PP(MACRO) option in the same compilation is not recommended.
For more discussion of the PP option, see PP.
For more discussion of the MACRO preprocessor, see Macro preprocessor.