New option in GCC 5.3: -fno-semantic-interposition : <p>GCC 5.3 has added a new option: <code>-fno-semantic-interposition</code></p>

<blockquote>
  <p>A new -fno-semantic-interposition option can be used to improve code
  quality of shared libraries where interposition of exported symbols is
  not allowed.</p>
</blockquote>

<p>This sounds like this is something useful for C++ projects where interposition can't be used for whatever reason, but where latency is a concern.</p>

<p>However, the description is fairly vague. Is anyone able to clarify how this option works exactly?</p>
