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Editorial Team
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Asked: 2026-06-10T08:19:32+00:00

I have a project that has both an iOS and an OS X target.

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I have a project that has both an iOS and an OS X target. Is there a preprocessor macro that is true when I’m compiling for OS X? I tried this:

#if TARGET_OS_MAC
@interface BFNode : NSObject <NSPasteboardReading, NSPasteboardWriting> {
#else
@interface BFNode : NSObject {
#endif

But TARGET_OS_MAC doesn’t seem to work. When I try to run the app on iOS I get a compiler error, because it tries to compile the first line and there is no NSPasteboardReading protocol defined on iOS.

I know there is TARGET_OS_IPHONE too. If I use that and swap the @interface declarations it works.

But there are a lot of places where I have code, that has no iOS version, so I need a macro for OS X too.

SOLUTION:

I ended up defining a new macro in the .pch file:

#define TARGET_OSX TARGET_OS_IPHONE == 0
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1 Answer

  1. Editorial Team

    That is because TARGET_OS_MAC is defined when building for iOS as well.

    See http://sealiesoftware.com/blog/archive/2010/8/16/TargetConditionalsh.html on that.

    I would try and build my own target specific define via build-settings on the target.

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