[RESOLVED] gcc 4.5.1 C++0x thread support

[rohshall]

Hi,

I am trying to compile gcc 4.5.1 for cygwin with support for C++0x threads.
However, the resulting gcc does not recognize the -pthread option.
My configure command is:

./configure --enable-bootstrap --enable-shared --enable-shared-libgcc --with-gnu-ld --enable-languages=c,c++ --enable-libgomp --enable-libssp --enable-threads=posix --with-__thread

The sample program is:

#include <iostream>
#include <thread>
using namespace std;

void hello()
{
    cout << "Hello Concurrent World!" << endl;
}

int main()
{
    cout << "starting" << endl;
    thread t(hello);
    t.join();
    cout << "ending" << endl;
    return 0;
}

I am compiling a C++ program using

$ gcc -Wall -g -std=c++0x -pthread Trial.cpp
gcc: unrecognized option '-pthread'
Trial.cpp: In function `int main()':
Trial.cpp:21:5: error: `thread' was not declared in this scope
Trial.cpp:21:12: error: expected `;' before `t'
Trial.cpp:22:5: error: `t' was not declared in this scope

Can anybody tell me if there is any option I missed to enable thread support?