CMake链接错误pthread:启用多线程以使用std :: thread:不允许操作

Question

我有一个类似于C++ Threads之前的错误 ,std :: system_error - 不允许操作？

我正在使用完全相同的源代码并进行编译

g++ ../src/main.cpp -pthread -std=c++11

工作没有任何问题.

因为我想在更大的项目中使用线程,所以我必须使用CMake的线程.在搜索解决方案后,我发现了几个代码,例如:

cmake_minimum_required (VERSION 2.6)
project (Test)
add_definitions("-std=c++11")

find_package (Threads)
add_executable (main src/main.cpp)
target_link_libraries (main ${CMAKE_THREAD_LIBS_INIT})

但对我而言,我总是这样做不起作用:

terminate called after throwing an instance of 'std::system_error'
  what():  Enable multithreading to use std::thread: Operation not permitted
Aborted (core dumped)

我的错是什么？

CMake输出看起来很有希望:

-- The C compiler identification is GNU 4.8.2
-- The CXX compiler identification is GNU 4.8.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Configuring done
-- Generating done

Answer 1

编辑:我现在正在使用gcc 5.4,有问题的CMake片段工作正常.

我刚刚遇到了同样的问题.我的最终版本CMakeLists.txt如下(注意 - 它也适用于Windows,即使用Visual Studio):

cmake_minimum_required (VERSION 2.6)
project (Test)
SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-std=c++11 -pthread")

find_package (Threads)
add_executable (main src/main.cpp)
target_link_libraries (main ${CMAKE_THREAD_LIBS_INIT})