必须先从模块"Darwin.POSIX.sys.xattr"导入"setxattr"的声明 [英] Declaration of ‘setxattr’ must be imported from module ‘Darwin.POSIX.sys.xattr’ before it is required

问题描述

代码在armv7上工作正常，但为arm64编译会引发此必须在模块'Darwin.POSIX.sys.xattr'中导入'setxattr'的声明"错误.

code is working fine on armv7 but compile for arm64 throws this "Declaration of ‘setxattr’ must be imported from module ‘Darwin.POSIX.sys.xattr’ before it is required" error.

u_int8_t b = 1;
    setxattr([path fileSystemRepresentation],
             "com.apple.MobileBackup", &b, 1, 0, 0);

有什么帮助吗?

推荐答案

我找到了解决方案.在类中包含 #include< sys/xattr.h>

I found the solution. include #include <sys/xattr.h> in the class

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