Hi,<br>I am running GHC 6.12.3 at Mac OSX and have numerous problems with &#39;cabal install&#39; of different packages.<br>For example:<br>~&gt;cabal install mongoDB<br>Resolving dependencies...<br>Configuring mongoDB-1.1.0...<br>
Preprocessing library mongoDB-1.1.0...<br>Building mongoDB-1.1.0...<br>...<br>Control/Monad/MVar.hs:16:34:<br>    Module `Control.Exception.Control&#39; does not export `mask&#39;<br>cabal: Error: some packages failed to install:<br>
mongoDB-1.1.0 failed during the building phase. The exception was:<br>ExitFailure 1<br><br>Questions about current Haskell Platform for OSX  2011.2.0.1. :<br>(<a href="http://hackage.haskell.org/platform/mac.html">http://hackage.haskell.org/platform/mac.html</a>)<br>
<br>1) Where can I find release notes to understand what version of GHC Haskell Platform for OSX  2011.2.0.1 includes? <br>2) Will I be able to install mongoDB-1.1.0 on this release?<br>3) How to install it into a separate location so it would not ruin my current platform?<br>
<br>Thanks!<br>Dmitri<br>