Suppress "may perform leak" warning. Author http://stackoverflow.com/users/415303/scott-thompson | Post : http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown/7933931#7933931

gistfile1.m

// This goes in some global header, let it be *.pch
#define SuppressPerformSelectorLeakWarning(Stuff) \
    do { \
        _Pragma("clang diagnostic push") \
        _Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \
        Stuff; \
        _Pragma("clang diagnostic pop") \
    } while (0)

// And then in any method you just call this function
SuppressPerformSelectorLeakWarning(
    ..
);