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delphicommand-linedelphi-7

Can I undefine a conditional in the command line?

In the help of Delphi 7 command line compiler, I just see an option to define a conditional compiling directive:

-D<syms> = Define conditionals

Is it possible to undefine a conditional?

I have defined DEVELOPMENT in the IDE, and want to have define just PRODUCTION in the command line compiler. The problem is that the command line compiler keeps the IDE definitions. I'd like just to undef it as is possible in the C world.

Solution

  • If you don't come up with a command line option, you can always add additional conditionals in your units or include file like this:

    {$DEFINE FOO}

// Allow us to undefine foo at the command line by defining UNDEFFOO
{$IFDEF UNDEFFOO}
  {$UNDEF FOO}
{$ENDIF}

{$IFDEF FOO}
  ...
{$ENDIF}

    Then use -D to set UNDEFFOO.