Re: [Mingw-cross-env-list] What gets compiled into DLL by libtool (licencing issues)

[John W. Eaton]

On 02/24/2014 08:03 PM, Tony Theodore wrote:
> On 25 Feb 2014, at 05:35, John W. Eaton <address@hidden> wrote:
>
> > On 02/24/2014 11:57 AM, Jonathan Hogg wrote:
> >
> > > However, as the software itself is proprietary, we cannot (so far as I'm
> > > aware) redistribute LGPL code if its been compiled into the same DLL.
> > > While some fo the above packages have a suitable linking exception, so
> > > far as I'm aware, the pthreads and quadmath libraries don't.
> >
> > What leads you to believe that the method of linking (dynamic vs. static) 
> > changes the requirements of the (L)GPL?
>
> One is considered a "work that uses the library", the other a derivate:
>
> http://en.wikipedia.org/wiki/GNU_Lesser_General_Public_License#Differences_from_the_GPL

As I understand it, the important thing is not that linking uses shared 
libraries, but that it is possible to replace the components that are 
covered by the LGPL with newer/different versions.  There are other ways 
to accomplish that than using shared libraries.

I think that focusing on shared/static libraries misses that point and 
leads people to believe that this exception for the LGPL somehow also 
applies to code covered by the GPL.

jwe