1// RUN: not %clang -fsyntax-only -fno-objc-default-synthesize-properties -fobjc-default-synthesize-properties %s 2>&1 | FileCheck %s 2 3@interface I 4@property int P; 5@end 6 7@implementation I 8@end 9// CHECK: error: unknown argument: '-fno-objc-default-synthesize-properties' 10// CHECK: error: unknown argument: '-fobjc-default-synthesize-properties' 11