title: node-inspector/v8-profiler not starting profiling or creating v8 log file
body: <p>I have the following nodejs code</p>
  
  <pre><code>var profiler = require("v8-profiler");
  
  profiler.startProfiling("FooBar");
  
  doSomethingAsync(function() {
    profiler.stopProfiling("FooBar");
  });
  </code></pre>
  
  <p>I run this:</p>
  
  <pre><code>$ time node --prof --prof_lazy test/performance/performance-test.js
  </code></pre>
  
  <p>However I don't get a v8.log file.</p>
  
  <p>I did have some issues installing the v8-profiler package related to <a href="https://github.com/bnoordhuis/node-profiler/issues/16" rel="nofollow">this issue with node-profiler</a>.  I use MacPorts, and g++ defaults to /opt/local/bin/g++ (I use the nodejs package provided from MacPorts as well)  I managed to get around the -arch error by using g++ that comes with XCode</p>
  
  <pre><code>$ CXX="xcrun g++" npm install v8-profiler
  </code></pre>
  
  <p>It might be a red herring, but it's worth mentioning incase the resulting v8-profiler binary objects doesn't work with my nodejs install.</p>
  
  <pre><code>$ node --version
  v0.10.22
  
  $ npm --version
  1.3.15
  </code></pre>