#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && (!defined(__IPHONE_6_0) || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0)) || \
    (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && (!defined(__MAC_10_8) || __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_8))
#define PT_DISPATCH_RETAIN_RELEASE 1
#endif

#define PT_PRECISE_LIFETIME
#define PT_PRECISE_LIFETIME_UNUSED

#if defined(PT_DISPATCH_RETAIN_RELEASE) && PT_DISPATCH_RETAIN_RELEASE
#define PT_PRECISE_LIFETIME __attribute__((objc_precise_lifetime))
#define PT_PRECISE_LIFETIME_UNUSED __attribute__((objc_precise_lifetime, unused))
#endif

#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && (!defined(__IPHONE_6_0) || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0)) || \
    (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && (!defined(__MAC_10_8) || __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_8))
#define PT_DISPATCH_RETAIN_RELEASE 1
#endif

#if PT_DISPATCH_RETAIN_RELEASE
#define PT_PRECISE_LIFETIME
#define PT_PRECISE_LIFETIME_UNUSED
#else
#define PT_PRECISE_LIFETIME __attribute__((objc_precise_lifetime))
#define PT_PRECISE_LIFETIME_UNUSED __attribute__((objc_precise_lifetime, unused))
#endif

--- 
+++ 
@@ -3,10 +3,10 @@
 #define PT_DISPATCH_RETAIN_RELEASE 1
 #endif
 
-#if PT_DISPATCH_RETAIN_RELEASE
 #define PT_PRECISE_LIFETIME
 #define PT_PRECISE_LIFETIME_UNUSED
-#else
+
+#if defined(PT_DISPATCH_RETAIN_RELEASE) && PT_DISPATCH_RETAIN_RELEASE
 #define PT_PRECISE_LIFETIME __attribute__((objc_precise_lifetime))
 #define PT_PRECISE_LIFETIME_UNUSED __attribute__((objc_precise_lifetime, unused))
 #endif
Fix logic that enables pre-ARC behavior
