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Editorial Team
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Asked: 2026-06-13T02:57:41+00:00

I have a project, using the current version of Xcode and llvm . I

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I have a project, using the current version of Xcode and llvm.
I am doing a free and paid version of a game, so I have set up a preprocessor flag to do it.

For the paid version target I define PAID_VERSION = 1 (in the “User-Defined” section of Build Settings)

When I compile however the PAID_VERSION keeps coming up with undefined.
So my #ifndef and #ifdef directives build the free version of the app.

I have looked around Stack Overflow and Google and found no hints as to what is going on here.

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1 Answer

  1. Editorial Team

    In the Other C Flags section add -DPAID_VERSION=1

    This will define PAID_VERSION as 1, equivalent to #define PAID_VERSION 1 in code.

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