License question

Aneurin Price wine at
Mon May 22 21:51:10 CDT 2006

Kai Blin wrote:

> Actually going that way is not really problematic. Linking to LGPL code
> from GPL code is fine.

To expand upon that, I'd like to quote a passage from the text of the LGPL:

"3. You may opt to apply the terms of the ordinary GNU General Public 
License instead of this License to a given copy of the Library. To do 
this, you must alter all the notices that refer to this License, so that 
they refer to the ordinary GNU General Public License, version 2, 
instead of to this License. (If a newer version than version 2 of the 
ordinary GNU General Public License has appeared, then you can specify 
that version instead if you wish.) Do not make any other change in these 

So basically, if you're trying to derive GPL software from LGPL 
software, the official word appears to be 'feel free'. The only problem 
is that you can't contribute *directly* back, as the conversion from GPL 
back to LGPL is impossible - though you could dual-license your code, 
and still comply with the existing license.
Hope that helps :P.
Aneurin Price

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