I&#39;m trying to install the package directory from cygwin. I am a windows user and have tried to use &quot;cabal install directory&quot; from the windows prompt but that quickly gives an error about a missing tool.<br>I&#39;m using cygwin to install directory now. However I still get an error. The error is:<br>
<br>* Missing header file: HsDirectory.h<br>This problem can usually be solved by installing the system package that<br>provides this library (you may need the &quot;-dev&quot; version). If the library is<br>already installed but in a non-standard location then you can use the flags<br>
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.<br><br>I have searched for this file and found it in the &quot;Haskell\directory1.0.1.0\include&quot; folder. I googled the error and found something about adding #include &lt;sys/types&gt; to the file. The &quot;HsDirectory.h&quot; file already contains &quot;#include &lt;sys/types&gt;&quot;.<br>
What should I do?<br>Many thanks,<br>Remy.<br>