Invalid preprocessing directive for #elseifdef in Xcode

Question

Why:

 #ifdef SOME_TARGET_FLAG     

      <some code here>

    #elseifdef SOME_ANOTHER_TARGET_FLAG

      <some another code here>

    #endif

produces "Invalid preprocessing directive" preprocess compilation error?

SOME_TARGET_FLAG and SOME_ANOTHER_TARGET_FLAG are just some "Other C-flags" defined in target build settings (

-D<FLAG_NAME>

pattern).

Is #elseifdef directive not supported by Xcode?

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Answer 1

Is #elseifdef directive not supported by Xcode?

It is not. Use this instead:

#elif defined(SOME_ANOTHER_TARGET_FLAG)

Invalid preprocessing directive for #elseifdef in Xcode

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