Re: Libpropc++

[Roel Vanhout <roel riks nl>]

Replying to myself here, but after reading the link you provided I think 
I understand what the author means. Specifically:

============= Quote
Licensing and ordering
Libpropc++ has dual licensing:
LGPL 2.1
    You are allowed to use libpropc++ only for open source software 
(because of LGPL issues related with templates).
Commercial License
    Can be used to develop commercial applications.
Order/download libpropc++ at http://ex-code.com/propcpp/.
============= End Quote

Since template code cannot be 'separated' from the rest of a program 
into a shared library, all the files that depend on a template library 
(such as, in fact, libsigc++) will have to be open-sourced in order to 
comply with the terms of the LGPL. This does indeed implicate that you'd 
have to open-source at least a part of your program in order to be able 
to use libsigc++.


cheers,

roel



Roel Vanhout wrote:
> Libsigc++ and gtkmm are released under the LGPL which you can find on
> http://www.gnu.org/licenses/licenses.html#LGPL.
> In short, it comes down to the following: you can use gtkmm/libsigc++ in
> code for which you provide no source if you give the users of the code
> the opportunity to change the part that is LGPL (ie, gtkmm/libsigc++).
> You can do this for example by using gtkmm/libsigc++ as shared libraries
> (.so on Unix, .dll on Windows) or by providing object code to your
> program so that users can re-link with modified versions of the LGPL code.
>
>
> cheers,
>
> roel
>
>
>
> Kresimir Sojat wrote:
>  > I was just playing around on sourgeforge and found the
>  > http://sourceforge.net/projects/glib-bind. Part of this project is
>  > libpropc++ and in its documentation
>  > (http://ex-code.com/propcpp/PR-short.html) says:
>  >
>  > Libpropc++ provides a partial reimplementation of libsigc++. Use this
>  > reimplementation if you want to use libpropc++ to write commercial
>  > software because the license of libsigc++ requires any software using
>  > libsigc++ to be open source.
>  >
>  > Is this statement true? Becouse i don't use gtkmm/sigc++ to develop
>  > open source software, and on http://gtkmm.org/license.shtml says:
>  >
>  > Note that this license does not require you to release the source code
>  > of your own applications or libraries and does not require you to pay
>  > any fees.
>  >
>  > I am realy confused now.
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