-#if defined(__APPLE__)
-#import <AvailabilityMacros.h>
-#if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
-#define BUILDING_ON_TIGER 1
-#elif MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_5
-#define BUILDING_ON_LEOPARD 1
-#endif
-#endif
-