title: Homebrew (Mac): cannot install libksba or dependency libgpg-error
body: <p>I'm setting up a new Mac for development with Ruby on Rails. I have installed XCode (including command line tools), Homebrew, and RVM properly.  However, when I try to install the 2.0.0 Ruby version via RVM, I keep having to install libksba, which tries to install the dependency libgpg-error.  The log tells me it's downloading the file, but it never does anything. I've let it run for 30 minutes before and still doesn't do anything. The file is supposed to be a few hundred KB, so it's not very large...Below is the code I'm running:</p>
  
  <pre><code>$ brew install libksba
  ==&gt; Installing libksba dependency: libgpg-error
  ==&gt; Downloading ftp://ftp.gnupg.org/gcrypt/libgpg-error/libgpg-error-1.11.tar.bz
  </code></pre>
  
  <p>This will just sit there and do nothing. Is there another repository where I can download the file from and manually install it?  It's frustrating to not be able to develop because of simple dependency errors.  Any suggestions would be greatly appreciated.</p>