如何在Mac OSX clang上获得对thread_local的支持？ [英] How to get support for thread_local on Mac OSX clang?

问题描述

如此答案所示，Mac OSX上Xcode中的clang不支持 thread_local 存储，即使设置了C ++ 11标志。即使是最新版本的Apple LLVM版本7.0.0（clang-700.1.76），目标：x86_64-apple-darwin15.0.0，线程模型：posix，也不支持 thread_local ：

As shown in this answer, clang from Xcode on Mac OSX does not support thread_local storage even with C++11 flags set. Even on the latest version, Apple LLVM version 7.0.0 (clang-700.1.76), Target: x86_64-apple-darwin15.0.0, Thread model: posix, does not support thread_local:

../../src/dir/sysArch.h:1505:3: error: thread-local storage is not supported
                                       for the current target
  thread_local
  ^

推荐答案

Xcode 8（及更高版本）提供的clang版本支持 thread_local 关键字；请参见此处。

The version of clang supplied with Xcode 8 (and later) supports the thread_local keyword; see the discussion here.

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