title: "config" scripts exist outside your system or Homebrew directory
body: <p>Ran "brew doctor" and got some errors.  I managed to fix the path issue by following the advice at this link: <a href="https://stackoverflow.com/questions/10343834/homebrew-wants-me-to-amend-my-path-no-clue-how?rq=1">How to modify PATH for Homebrew?</a>.</p>
  
  <p>However, completely lost with what to do with the following error:</p>
  
  <pre><code>Warning: "config" scripts exist outside your system or Homebrew directories.
  `./configure` scripts often look for *-config scripts to determine if
  software packages are installed, and what additional flags to use when
  compiling and linking.
  
  Having additional scripts in your path can confuse software installed via
  Homebrew if the config script overrides a system or Homebrew provided
  script of the same name. We found the following "config" scripts:
  
  /opt/sm/pkg/active/bin/curl-config
  /opt/sm/pkg/active/bin/ncurses5-config
  /opt/sm/pkg/active/bin/ncursesw5-config
  /opt/sm/pkg/active/bin/pkg-config
  /opt/sm/pkg/active/bin/xml2-config
  /opt/sm/pkg/active/bin/xslt-config
  </code></pre>
  
  <p>Noob. Running OSX. Appreciate any assistance from wiser Jedis...</p>