Re: Help us with GPL / LGPL

[Christopher Roy Bratusek <zanghar freenet de>]

Am Sat, 06 Jun 2009 15:33:28 +0900 (JST)
schrieb Teika Kazura <teika lavabit com>:

> Hi. If someone understands GPL / LGPL, please help us.
> 
> Recently Wang Diancheng has sent us a nice code for librep (See May 31
> mail, or
> http://mail.gnome.org/archives/sawfish-list/2009-May/msg00140.html)
> 
> The problem is the copyright. Wang Diancheng borrowed code from
> glib, or more precisely, glib-2.x.y/glib/gutf8.c, which is licensed
> with LGPL. On the other hand, librep is GPL. Should it be GPL, or
> LGPL? 
> 
> I'd like to know what will be the proper copyright notice, too.
> 
> gutf8.c starts as:
> ------------------------------------------------------------------------
> /* gutf8.c - Operations on UTF-8 strings.
>  *
>  * Copyright (C) 1999 Tom Tromey
>  * Copyright (C) 2000 Red Hat, Inc.
>  *
>  * This library is free software; you can redistribute it and/or
>   [LGPL preamble follows]
> ------------------------------------------------------------------------
> The file by Wang Diancheng, named utf8.c, starts:
> ------------------------------------------------------------------------
> /* This file some code come from glib:
>  * utf8.c - Operations on UTF-8 strings
>  *
>  * Copyright (C) 2009 Wang Diancheng.
>  *
>  * This library is free software; you can redistribute it and/or
>   [LGPL preamble follows]
> ------------------------------------------------------------------------
> 
> Is it enough?
> 
> # I have never understood GPL. Why not bsd license?
> 
> Thanks beforehand,
> Teika (Teika kazura)
> 

aditionally an entry in CREDITS to the glib-devs and that should be
enough to my knowledge. (That's how I did it all other the time and
never ran into problems)

But of course I can't say that I'm 100% sure.

Chris