Using configuration mentioned above you may receive one of those (or another) errors:
types.h - User Defined Issues - Architecture not supported _types.h - User Defined Issues - Architecture not supported Semantic issue - Unknown type name '__int64_t', Unknown type name '__int32_t', Unknown type name '__uint64_t', Unknown type name '__uint32_t', Unknown type name '__darwin_natural_t'..
Working solution is to remove arm64 from “Standard Architectures” and leave arm64 in “Valid Architectures”
This gives Apple Mach-O Link Error
Use iOS SDk 7 and above. SDK 6 does not support for arm64.