Setting native OS thread name (eg, via prctl)

[Arun Chandrasekaran via Digitalmars-d-learn]

I have this trivial code where the main thread clones a child 
thread.

import std.stdio;
import core.thread;
import std.concurrency;
class DerivedThread : Thread
{
    this()
    {
        super(&run);
    }

    void quit()
    {
        _quit = true;
    }
private:
    void setOSThreadName()
    {
        // TODO: Is there a way to set the native OS thread name, 
worst case, via prctl?
    }
    void run()
    {
        setOSThreadName();
        while(!_quit)
        {
            writeln("Hello from ", thisTid);
            Thread.sleep(dur!("seconds")(1));
        }
        writeln("I'll exit now.");
    }

    bool _quit = false;
    string _threadName = "Derived";
}

void main()
{
    auto derived = new DerivedThread();
    derived.start();
    Thread.sleep(dur!("seconds")(4));
    derived.quit();
    derived.join();
}

What do i have to do to set the thread name in setOSThreadName 
(for instance, on Linux, it will reflect in proc filesystem).