To: "Elizabeth O. Coolbaugh" <cool@eklektix.com>
Subject: Haskell licenses
From: Jens-Ulrik Petersen <jens-ulrik.petersen@nokia.com>
Date: 30 Mar 2000 12:39:35 +0900

"Elizabeth O. Coolbaugh" <cool@eklektix.com> writes:

> Done ... you'll see it there tomorrow.

Great, thanks!

> I searched through the website briefly and saw no mention of
> licenses.  This wasn't an exhaustive search, mind you, and I
> realize that the license could be different for each implementation,
> but if you have any pointers to licensing information, they would
> be appreciated.  I'll try to get back to the site again next week.

Good question.  Until quite recently (last year in fact I believe),
the Haskell community had a kind of academic attitude of distancing
itself from licensing.  However (because of the desire to be included
in Linux distributions I would say) this changed and now all the main
implementations have BSD-like or Artistic licenses.

Here's a summary:

GHC (Glasgow Haskell Compiler) -- the main Haskell compiler implementation
[current release is 4.06 released 2000-01-28]
You can read the license at <http://www.haskell.org/ghc/license.html>;.
News is at <http://www.haskell.org/ghc/news.html>;

Hugs98 -- The Haskell interpreter 
[current release is Feb2000]
Hugs98 has a similar license to GHC, since it doesn't seem to appear
on the website I include it below fyi.
News is at <http://www.cse.ogi.edu/PacSoft/projects/Hugs/pages/latest.htm>;

nhc98 -- a compact efficient Haskell compiler
[current release is pre-release 17 (2000-03-14)]
It uses the Artistic License I think
<http://www.cs.york.ac.uk/fp/nhc98/copyright.html>;.
News is at <http://www.cs.york.ac.uk/fp/nhc98/status.html>;

Thanks,

Jens


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The Hugs 98 system is Copyright (c) Mark P Jones, Alastair Reid, the
Yale Haskell Group, and the Oregon Graduate Institute of Science and
Technology, 1994-1999, All rights reserved, and is distributed as free
software under the following license.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

- Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

- Neither name of the copyright holders nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND THE CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDERS OR THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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