Mcrypt is required on OS X Mavericks 10.9.4 I'm stuck on the /admin/install page, getting an error "Can't run Craft :(" saying that Mcrypt is required. 

I've tried installing with Homebrew, but kept getting an error. So, I installed mcrypt manually using these instructions on Stack Overflow. PHP and Mcrypt are installed:

$ which php
/usr/local/bin/php

$ which mcrypt
/usr/local/bin/mcrypt


And in my php.ini file I've added:

extension=mcrypt.so


(I've also tried including the path extension=/usr/local/bin/mcrypt.so)

In the ;extension area (around line 880).

Even after restarting Apache, I still get the same error that "Mcrypt isn't installed" from Craft.
Here's all you need:

http://topicdesk.com/downloads/mcrypt/mcrypt-download

Works like a charm.

Update: to use brew, you have to specify the version of PHP for it to work. For example:

brew install mysql php54-mcrypt