How to compile C++ std::thread code with MinGW? - c++

Question

I would like to compile my c++11 project (recently moved to c++11) with MinGW. And I have compiling errors about c++11 code like "std::thread not found".
I used the last MinGW with gcc 5.3.0 (December 2015). A the end, I would like only to compile this example before to compile my big project :
#include <iostream>
#include <thread>
#include <chrono>
void foo()
{
// simulate expensive operation
std::this_thread::sleep_for(std::chrono::seconds(1));
}
void bar()
{
// simulate expensive operation
std::this_thread::sleep_for(std::chrono::seconds(1));
}
int main()
{
std::cout << "starting first helper...\n";
std::thread helper1(foo);
std::cout << "starting second helper...\n";
std::thread helper2(bar);
std::cout << "waiting for helpers to finish..." << std::endl;
helper1.join();
helper2.join();
std::cout << "done!\n";
}
(source : http://en.cppreference.com/w/cpp/thread/thread/join)
I tried "g++ -std=c++11 main.cpp" and "g++ main.cpp -std=c++0x" but I have always those following errors :
main.cpp: In function 'void foo()':
main.cpp:8:10: error: 'std::this_thread' has not been declared
std::this_thread::sleep_for(std::chrono::seconds(1));
^
main.cpp: In function 'void bar()':
main.cpp:14:10: error: 'std::this_thread' has not been declared
std::this_thread::sleep_for(std::chrono::seconds(1));
^
main.cpp: In function 'int main()':
main.cpp:20:5: error: 'thread' is not a member of 'std'
std::thread helper1(foo);
^
main.cpp:23:5: error: 'thread' is not a member of 'std'
std::thread helper2(bar);
^
main.cpp:26:5: error: 'helper1' was not declared in this scope
helper1.join();
^
main.cpp:27:5: error: 'helper2' was not declared in this scope
helper2.join();
^

Answer 1

MinGW mostly does not have a port of glibc which supports pthreading or gthreading like in GCC.
For solving this, the first solution can be installing library of thread headers.
The other solution can be working with GCC compiler.