-CFCharacterSetRef cfalnumset = CFCharacterSetGetPredefined(kCFCharacterSetAlphaNumeric);
-CFCharacterSetRef cfalphaset = CFCharacterSetGetPredefined(kCFCharacterSetLetter);
-CFCharacterSetRef cfcntrlset = CFCharacterSetGetPredefined(kCFCharacterSetControl);
-CFCharacterSetRef cfdigitset = CFCharacterSetGetPredefined(kCFCharacterSetDecimalDigit);
+#define cfalnumset CFCharacterSetGetPredefined(kCFCharacterSetAlphaNumeric)
+#define cfalphaset CFCharacterSetGetPredefined(kCFCharacterSetLetter)
+#define cfcntrlset CFCharacterSetGetPredefined(kCFCharacterSetControl)
+#define cfdigitset CFCharacterSetGetPredefined(kCFCharacterSetDecimalDigit)