<p>I had recently upgraded my MacBook Pro to OS X 10.6 Snow Leopard, and I was in the process of reinstalling most of the ruby gems.&nbsp; The geoip_city gem was the only one that gave me a bit of trouble, so I figured I'd post how I got it working.</p> <ol> <li>Go <a title="Maxmind GeoIP source download" href="http://geolite.maxmind.com/download/geoip/api/c/" target="_blank">here</a> and download the latest source for the GeoIP C api</li> <li>Untar the source, cd into the directory</li> <li>Run <code>./configure</code></li> <li>Then run <code>make &amp;&amp; sudo make install</code></li> <li>Finally, run <code>sudo env ARCHFLAGS="-arch x86_64" gem install geoip_city -- --with-geoip-dir=/opt/GeoIP</code></li> </ol> <p>The key is the <code>ARCHFLAGS</code> parameter in the last step.&nbsp; This indicates the native extensions are to be built for a 64 bit architecture.</p> <p>Also, if you need the free GeoIP City Lite database, you can find it <a title="GeoIP City Lite database download link" href="http://www.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz">here</a>.&nbsp; I hope this helps.</p> 2009-12-28T19:14:47Z A quick walk-through of how to install the geoip_city gem on OS X Snow Leopard 10.6. 38 snow leopard, osx, geoip, geoip-city, gem, install, ruby, 10.6 true geoip-city-gem-on-snow-leopard 2009-12-28T19:15:07Z