LGPL 2.1 + GPL 3 = problems?

[Arnoud Engelfriet]

Jesse Hannah wrote:
> But I could license the LGPL v2.1 parts under the LGPL v3:
> 
>     This library is free software; you can redistribute it and/or
>     modify it under the terms of the GNU Lesser General Public
>     License as published by the Free Software Foundation; either
>     version 2.1 of the License, ***or (at your option) any later  
> version.***

If the library says that, then yes. But not all LGPL libraries carry
that particular message.

> The way I'm reading that, I'm free to redistribute the library under  
> the LGPL v3 if I want to, meaning (presumably) that I can use it with  
> a GPLv3 program. Does that sound right?

Yes, because the LGPLv3 allows conversion of the license to GPLv3.
With that conversion you can comply with GPLv3 for the entire work.

Arnoud

-- 
Arnoud Engelfriet, Dutch & European patent attorney - Speaking only for myself
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