更新成XCode 9.0時出現"Conflicting types for 'SecRandomCopyBytes'"

開機後被要求更新XCode APP，想說沒差，結果更新完就出現"Conflicting types for 'SecRandomCopyBytes'"，還剛好下午要demo，這下可好，連編譯都Fail，查半天看起來是iOS11後不再支援32Bit，而RNCryptor看起來有相容到10.6，查到Conflicting types error in Xcode 9 #248，看起來可以用底下的code就解決了，不過似乎也是讓他可以compiler

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
extern int SecRandomCopyBytes(SecRandomRef rnd, size_t count, void *bytes) __attribute__((weak_import));
#else
extern int SecRandomCopyBytes(SecRandomRef rnd, size_t count, uint8_t *bytes) __attribute__((weak_import));
#endif

參考網址：
Conflicting types error in Xcode 9 #248
ios11 beta error #17
This method(SecRandomCopyBytes) is wrong in Xcode 9 Beta #244