[Haskell-cafe] Merge hsql and HDBC -- there can only be one!

[John Goerzen]

On 07/20/2010 11:45 PM, Michael Snoyman wrote:
> I think a simple statement along the lines of the GNU Classpath linking
> exception would go very far[1]. I only mention that one since it's
> quoted verbatim on the Wikipedia site.
>
> Michael
>
> [1]
> http://en.wikipedia.org/wiki/GPL_linking_exception#The_classpath_exception

That one pertains to GPL, not LGPL.  The issues with each are different. 
  HaXml, however, has this:

As a relaxation of clause 6 of the LGPL, the copyright holders of this
library give permission to use, copy, link, modify, and distribute,
binary-only object-code versions of an executable linked with the
original unmodified Library, without requiring the supply of any
mechanism to modify or replace the Library and relink (clauses 6a,
6b, 6c, 6d, 6e), provided that all the other terms of clause 6 are
complied with.

I need to read the LGPL and analyze it closer, but my first analysis 
suggests that this would work fine for me and others.

wxHaskell uses:

   EXCEPTION NOTICE

   1. As a special exception, the copyright holders of this library give
   permission for additional uses of the text contained in this release of
   the library as licenced under the wxWindows Library Licence, applying
   either version 3 of the Licence, or (at your option) any later version of
   the Licence as published by the copyright holders of version 3 of the
   Licence document.

   2. The exception is that you may use, copy, link, modify and distribute
   under the user's own terms, binary object code versions of works based
   on the Library.

   3. If you copy code from files distributed under the terms of the GNU
   General Public Licence or the GNU Library General Public Licence into a
   copy of this library, as this licence permits, the exception does not
   apply to the code that you add in this way.  To avoid misleading 
anyone as
   to the status of such modified files, you must delete this exception
   notice from such code and/or adjust the licensing conditions notice
   accordingly.

   4. If you write modifications of your own for this library, it is your
   choice whether to permit this exception to apply to your modifications.
   If you do not wish that, you must delete the exception notice from such
   code and/or adjust the licensing conditions notice accordingly.

I'll also want to evaluate LGPL v3, which I have been meaning to move to 
anyhow.

-- John