Re: [sigc] Linking dynamically with SigC++ (now rather: License)

[Murray Cumming <murrayc murrayc com>]

On Mon, 2007-07-16 at 08:47 -0500, Michael Ekstrand wrote:
> On Sat, Jul 14, 2007 at 04:31:22AM +0200, Murray Cumming wrote:
> > Once again, sorry for the delay in making the LGPL exception text
> > official.
> > 
> > However, I'm now wondering if maybe a change from LGPLv2 to LGPLv3 would
> > be simpler. libsigc++ is licensed under "either version 2 of the
> > License, or (at your option) any later version" so changing it to
> > "version 3 or later" would be a lot less work.
> > 
> > I think LGPL3 seems to allow more than 10 lines of template code in
> > headers, as long as you say that you are using the library, but I'm not
> > completely sure:
> > http://www.gnu.org/licenses/lgpl-3.0.html 
> 
> One thing that I think merits consideration before making this change:
> GPL2 compatibility.  It seems that moving to LGPLv3 means that GPL2-only
> programs can no longer use the latest libsigc++[1].  I'm not sure if there
> are any, or how much of a concern this would be in practice, but it
> should probably not be ignored.
> 
> - Michael
> 
>  1. http://www.fsf.org/licensing/licenses/gpl-faq.html#AllCompatibility

Yes, I plan to discuss this more widely before doing this.

-- 
Murray Cumming
murrayc murrayc com
www.murrayc.com
www.openismus.com