title: How to upgrade gtk2hsC2hs?
body: <p>I am trying <code>cabal install glib-0.12.3</code> under my Ubuntu 11.10 using cabal-install 0.10.2. However, it shows the following error messages:</p>
  
  <pre><code>setup: The program gtk2hsC2hs version &gt;=0.13.5 is required but the version
  found at /usr/bin/gtk2hsC2hs is version 0.13.4
  cabal: Error: some packages failed to install:
  glib-0.12.3 failed during the configure step. The exception was:
  ExitFailure 1
  </code></pre>
  
  <p>After half an hour's search, I cannot find where this <code>gtk2hsC2hs</code> is. I dug into places like <a href="http://code.haskell.org/gtk2hs/tools/c2hs/" rel="noreferrer">http://code.haskell.org/gtk2hs/tools/c2hs/</a>, but could not seem to find the right version.</p>
  
  <p>How could I upgrade my gtk2hsC2hs? Thanks!</p>