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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Hat download page</title></head>
<body bgcolor="#ffffff">
<table><tr><td width=530>
<center>
<img src="hat.gif" alt="Hat Logo"><br>
<h1>Hat download page</h1>
</center>
<hr>
<p>
The latest stable release of Hat is 2.04, available in various
distribution formats (listed below). Important patches for the stable
version are also provided (at the bottom of the page). The development
tree is at version 2.05 and is mainly available via
<a href="darcs.html">darcs</a>. However, as a special exception, an
interim package of 2.05 has been made available below, specifically for
those wanting to build Hat with the recently-released ghc-6.6. (It
already incorporates all the 2.04 patches below, plus many other
bugfixes. However, its compatibility with the standard base library
package is now somewhat poor. Fuller compatibility will have to wait
until the next proper release cycle.)
<p>
Bugfixes and important changes to the system are described in the
<a href="status.html">release notes</a> for each version.
<p>
Don't forget to read the <a href="requirements.html">system requirements</a>,
first, and then the <a href="install.html">installation instructions</a>.
<p>
<hr>
<h3>Distribution packages</h3>
<p>
<center>
<table width=450 border=1 cellspacing=0 cellpadding=2>
<tr bgcolor="#dddddd"><th>package</th> <th>machine</th>
<th>version</th> <th>date</th> <th>size</th></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/hat-2.05.tar.gz">
Sources (.tar.gz)</a></td>
<td>any</td>
<td><font color=red>2.05</font></td>
<td>2006-10-23</td>
<td>1.6Mb</td></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/hat-2.04.tar.gz">
Sources (.tar.gz)</a></td>
<td>any</td>
<td><font color=red>2.04</font></td>
<td>2005-05-17</td>
<td>1.6Mb</td></tr>
<tr bgcolor="#ffffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/hat-2.02.tar.gz">
Sources (.tar.gz)</a></td>
<td>any</td>
<td><font color=red>2.02</font></td>
<td>2003-03-26</td>
<td>1.4Mb</td></tr>
<tr bgcolor="#ffdddd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/old/hat-2.00.tar.gz">
Sources (.tar.gz)</a></td>
<td>any</td>
<td><font color=red>2.00</font></td>
<td>2002-06-14</td>
<td>1.5Mb</td></tr>
</table>
</center>
<p>
<em><b>Alternative locations:</b></em>
<br>
<b>Tarfiles and RPMs:</b><br>
<a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/">
<tt>ftp://ftp.cs.york.ac.uk/pub/haskell/hat/</tt></a><br>
<a href="http://www.cs.york.ac.uk/fp/hat/hat-2.05.tar.gz">
<tt>http://www.cs.york.ac.uk/fp/hat/hat-2.05.tar.gz</tt></a><br>
<b>RPMs for RedHat:</b><br>
<a href="http://www.dtek.chalmers.se/~d95mback/nhc98/">
<tt>http://www.dtek.chalmers.se/~d95mback/nhc98/</tt></a><br>
<a href="http://haskell.org/~petersen/rpms/i386/">
<tt>http://haskell.org/~petersen/rpms/i386/</tt></a><br>
<a href="http://haskell.org/~petersen/srpms/">
<tt>http://haskell.org/~petersen/srpms/</tt></a><br>
<b>FreeBSD port:</b><br>
<a href="http://freshports.org/devel/hs-hat/">
<tt>http://freshports.org/devel/hs-hat/</tt></a><br>
<b>Darwin port:</b><br>
<a href="http://darwinports.opendarwin.org/">
<tt>http://darwinports.opendarwin.org//</tt></a><br>
<b>Debian packages:</b><br>
<a href="ftp://ftp.debian.org/debian/pool/main/h/hat/">
<tt>ftp://ftp.debian.org/debian/pool/main/h/hat/</tt></a><br>
<hr>
<p>
<center>
<b>Known to work with the following compiler versions upwards:</b><br>
<table border=1 cellspacing=0 cellpadding=2 bgcolor="#dddddd"><tr>
<td>nhc98</td><td>1.18</td>
</tr><tr>
<td>ghc</td><td>5.04.2</td>
</tr><tr>
<td>ghc</td><td>6.0.1</td>
</tr></table>
</center>
<p>
<p>
All the documents available on the web are included in the source package.
(* Please note that options/instructions for out-of-date packages
may differ slightly from the ones on the web. Always follow the
instructions from the package itself.)
<p>
The <a href="install.html">installation instructions</a> should
be comprehensive, but if you have any problems, please mail
<a href="mailto:hat@haskell.org"><tt>hat@haskell.org</tt></a>.
(You do not need to be a member of the list to post to it.)
<br><br><hr>
<h3>Patches</h3>
<center>
<table width=450 border=1 cellspacing=0 cellpadding=2>
<tr bgcolor="#dddddd"><th>patch name</th> <th>patch to</th>
<th>date</th> <th>fixes what problem?</th></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.04-config">
config</a></td>
<td>hat v2.04</td>
<td>2006-05-25</td>
<td>Several small configuration fixes for building Hat with
ghc-6.4 and/or gcc-4.x compilers.
</td></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.04-dirs">
-Idirs</a></td>
<td>hat v2.04</td>
<td>2005-07-04</td>
<td>This patch fixes the directory and file names generated by hat-trans
when the original source code is referenced by an upward relative path
such as <tt>../../code</tt>. This can particularly occur if you use a
<tt>-Idir</tt> or <tt>-idir</tt> option to hmake.
</td></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/hat.cabal">
cabal file</a></td>
<td>hat v2.04</td>
<td>2005-07-04</td>
<td>A replacement for the file <tt>src/hatlib/hat.cabal</tt>,
exposing more of internal modules of Hat. This is needed if you
encounter an error like "Could not find module `Hat.PreludeBuiltin'"
</td></tr>
<tr bgcolor="#ddffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.04-patbind">
patbind</a></td>
<td>hat v2.04</td>
<td>2005-06-29</td>
<td>A patch to fix the translation of pattern-bindings at the toplevel.
</td></tr>
<tr bgcolor="#ffffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.02-cumulative">
cumulative</a></td>
<td>hat v2.02</td>
<td>2003-04-30</td>
<td>This patch is a cumulative patch that includes the two listed below
(redefine and typesyn), and in addition fixes the following problem:
In the transformation of a module that defines instances of an
imported class whose methods are only in scope qualified, any
generated uses of the method names must be qualified too.
</td></tr>
<tr bgcolor="#ffffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.02-redefine">
redefine</a></td>
<td>hat v2.02</td>
<td>2003-04-24</td>
<td>A Prelude entity redefined in a user module led to some overlapping
auxiliary functions in the hat-transformed module. This patch
ensures that a Prelude function is not imported if there is a
local redefinition.
</td></tr>
<tr bgcolor="#ffffdd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/patch-2.02-typesyn">
typesyn</a></td>
<td>hat v2.02</td>
<td>2003-04-24</td>
<td>Some complex type synonyms (renaming arrow (function) types)
led to incorrect types in the hat-transformed code.
</td></tr>
<tr bgcolor="#ffdddd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/old/patch-2.00-hmake3.06">
hmake3.06</a></td>
<td>hat v2.00</td>
<td>2002-10-14</td>
<td>Enable hat-trans to build with the latest version of hmake (3.06).
</td></tr>
<tr bgcolor="#ffdddd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/old/patch-2.00-pp">
pretty-printer</a></td>
<td>hat v2.00</td>
<td>2002-08-28</td>
<td>Fix a pretty-printing bug in hat-trans, e.g. the transformed version
of <tt>f = \ ~(a,b) -> 1</tt> was printed wrongly.
</td></tr>
<tr bgcolor="#ffdddd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/old/patch-2.00-ntohl">
ntohl</a></td>
<td>hat v2.00</td>
<td>2002-07-12</td>
<td>On some machines (e.g. Solaris), an extra #include is needed to
get hold of the ntohl() macro.
</td></tr>
<tr bgcolor="#ffdddd">
<td><a href="ftp://ftp.cs.york.ac.uk/pub/haskell/hat/old/echo.c">
script/echo.c</a></td>
<td>hat v2.00</td>
<td>2002-06-19</td>
<td>This file is missing from the distribution tarfile. You will
only need it on platforms where the builtin `echo' command does
not understand the `-n' option.
</td></tr>
</table>
</center>
<br><br>
<hr>
<p>
The latest updates to these pages are available on the WWW from
<a href="http://www.haskell.org/hat/">
<tt>http://www.haskell.org/hat/</tt></a><br>
<a href="http://www.cs.york.ac.uk/fp/hat/">
<tt>http://www.cs.york.ac.uk/fp/hat/</tt></a>
<p>
This page last modified: 25th May 2006<br>
<a href="http://www.cs.york.ac.uk/fp/">
York Functional Programming Group</a><br>
</td></tr></table>
</body></html>
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