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?
Is #elseifdef directive not supported by Xcode?
It is not. Use this instead:
#elif defined(SOME_ANOTHER_TARGET_FLAG)