title: ODBC Driver Manager: Data source name not found and no default driver specified
body: <p>I am setting up Go, FreeTDS, and unixODBC on OSX. I followed the instructions on <a href="https://code.google.com/p/odbc/wiki/InstallingUnixODBCOnOSX" rel="nofollow">https://code.google.com/p/odbc/wiki/InstallingUnixODBCOnOSX</a>, and when I tried to run the tests, I get:</p>
  
  <pre><code>[ODBC Driver Manager] Data source name not found and no default driver specified
  </code></pre>
  
  <p>The port installs both unixODBC <strong>and</strong> FreeTDS, so what is needed to resolve this problem?</p>