title: Portable alternatives to random_device for seeding pseudo-RNG?
body: <p>So, I've come across some answers and comments about <code>random_device</code> either being bugged or it purposefully using a deterministic method as a fallback when a non-deterministic method can't be used on the implementation.</p>
  
  <p>As a matter of fact, I'm on Windows using GCC and I can't use <code>random_device</code> because of that problem (every created instance returns the same number). I know you could use <code>time()</code> but this isn't ideal either as seeds are identical when created in the same second.</p>
  
  <p>What are portable alternatives that can be used for seeding PRNG?</p>