title: Installing Node.js with homebrew issue
body: <p>I'm trying to install Node.js with homebrew on OS X but I'm running into a few issues and I'm not quite sure how to fix them. When I run <code>brew doctor</code> I get the following output:</p>
  
  <pre><code>Warning: Python is installed at /Library/Frameworks/Python.framework
  
  Homebrew only supports building against the System-provided Python or a
  brewed Python. In particular, Pythons installed to /Library can interfere
  with other software installs.
  
  Warning: You have unlinked kegs in your Cellar
  Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
  those kegs to fail to run properly once built. Run `brew link` on these:
  
      node
  
  Warning: You have uncommitted modifications to Homebrew
  If this a surprise to you, then you should stash these modifications.
  Stashing returns Homebrew to a pristine state but can be undone
  should you later need to do so for some reason.
      cd /usr/local/Library &amp;&amp; git stash &amp;&amp; git clean -d -f
  Error: Homebrew doesn't know what compiler versions ship with your version
  of Xcode (5.1). Please `brew update` and if that doesn't help, file
  an issue with the output of `brew --config`:
    https://github.com/Homebrew/homebrew/issues
  
  Note that we only track stable, released versions of Xcode.
  
  Thanks!
  </code></pre>
  
  <p>I tried to run <code>brew link node</code> and got the following message:</p>
  
  <pre><code>Linking /usr/local/Cellar/node/0.10.26... Warning: Could not link node. Unlinking...
  
  Error: Could not symlink file: /usr/local/Cellar/node/0.10.26/lib/dtrace/node.d
  Target /usr/local/lib/dtrace/node.d already exists. You may need to delete it.
  To force the link and overwrite all other conflicting files, do:
    brew link --overwrite formula_name
  
  To list all files that would be deleted:
    brew link --overwrite --dry-run formula_name
  </code></pre>
  
  <p>So then I tried to run <code>brew link --overwrite node</code> and got the following error:</p>
  
  <pre><code>Linking /usr/local/Cellar/node/0.10.26... Warning: Could not link node. Unlinking...
  
  Error: Permission denied - /usr/local/lib/dtrace/node.d
  </code></pre>
  
  <p>I am now stuck and not really sure what to do. Any help would be greatly appreciated. </p>