gifsicle license question

Hans de Goede j.w.r.degoede at hhs.nl
Tue Aug 21 21:32:57 UTC 2007


Orion Poplawski wrote:
> Most of gifsicle is GPLv2+, but one file (src/clp.c) is under the 
> "Click" license:
> 
> Permission is hereby granted, free of charge, to any person obtaining a 
> copy of this software and associated documentation files (the 
> "Software"), to deal in the Software without restriction, including 
> without limitation the rights to use, copy, modify, merge, publish, 
> distribute, sublicense, and/or sell copies of the Software, and to 
> permit persons to whom the Software is furnished to do so, subject to 
> the following conditions:
> 
> The above copyright notice and this permission notice shall be included 
> in all copies or substantial portions of the Software.
> 
> The name and trademarks of copyright holders may NOT be used in 
> advertising or publicity pertaining to the Software without specific, 
> written prior permission. Title to copyright in this Software and any 
> associated documentation will at all times remain with copyright holders.
> 
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
> OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
> IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
> CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
> TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
> SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> 
> 
> ---
> 
> Looks a lot like MIT to me.  So "GPLv2+ and MIT"?
> 

It is MIT (new style), but unless that c file gets build into a binary all by 
itself, the resulting binaries are all GPLv2+ (as thats the more restrective 
license of their input files. And this the license tag is simple:
License: GPLv2+

Regards,

Hans





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