 <p>A better way to solve this issue, in my opinion, would be to edit your ~/.profile or /etc/bashrc and add the line:</p> <pre><code>export ARCHFLAGS="-arch i386 -arch x86_64" </code></pre> <p>Will save messing around with any future installations (I've just had to do this for installing lots of Perl modules in CPAN)!</p>