NMAKE Help (nmake.hlp) (Table of Contents; Topic list)
!UNDEF Directive
                                             ◄Up► ◄Contents► ◄Index► ◄Back►
─────NMAKE──────────────────────────────────────────────────────────────────
 
     Syntax:  !UNDEF macroname
 
     Undefines a macro by removing <macroname> from NMAKE's symbol
     table. An undefined macro is not the same as a null macro.
     See: ◄Macros►
          ◄Null Macros and Undefined Macros►
                                    -♦-