[Core] Added POSIX support (Experimental)

Thanks to Danman
I don't think it actually compile although tried my best to correct
code.


Former-commit-id: c3366c2c924f7392f4d46824dafca63ecf7f1fea

src/Nazara/Core/Posix/ThreadImpl.hpp

@@ -0,0 +1,31 @@
+// Copyright (C) 2012 Alexandre Janniaux
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_THREADIMPL_HPP
+#define NAZARA_THREADIMPL_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <pthread.h>
+
+struct NzFunctor;
+
+class NzThreadImpl
+{
+	public:
+		NzThreadImpl(NzFunctor* threadFunc);
+
+		void Detach();
+		void Join();
+
+		static void Sleep(nzUInt32 time);
+
+	private:
+		static unsigned int ThreadProc(void* userdata);
+
+		pthread_t m_handle;
+};
+
+#endif // NAZARA_THREADIMPL_HPP