XCode 4.2 clang seg fault

Question

刚升级到Lion和xcode 4.2。现在当我重新编译我的程序时，我收到了这些错误：

1. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1806:35: current parser token ';'
2. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1762:1: parsing Objective-C method 'updateWithTouchLocationMoved:withEvent:view:'
3. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1762:1: in compound statement ('{}')
4. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1771:2: in compound statement ('{}')
5. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1789:3: in compound statement ('{}')
6. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1796:4: in compound statement ('{}')
7. /Users/XXX/Code/iPhone/XXX/Code/Scenes/GameScene.mm:1799:5: in compound statement ('{}')
clang: error: unable to execute command: Segmentation fault: 11
clang: error: clang frontend command failed due to signal 2 (use -v to see invocation)

围绕这些行号没有什么奇怪的。没有复合语句，只要简单(a == b)类型的东西。一些错误行号甚至不在语句上，只是空行或{括号。我怀疑行号不准确。现在我有点死在水里。代码在4.1下编译得很好。

有什么建议吗？

Answer 1

我阻止编译器崩溃。在逐行注释掉代码行以查看实际发生的位置后，我到达了这一行：

shape.shapeType |= kTypeBreakable;

...做

shape.shapeType = shape.shapeType | kTypeBreakable;

...编译好。那也是......

shape.shapeType |= 0x00000200;

kTypeBreakable是一个设置为0x00000200

的枚举

shapeType只是一个具有getter / setting的obj-c对象变量。

很奇怪的编译器错误。