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Re: GPLv3 compatible with OpenSSL?



Le mardi 20 novembre 2007 à 12:10 +0100, Matej Vela a écrit :
> Is GPLv3 compatible with the OpenSSL license?

I don't think so.

>     3. All advertising materials mentioning features or use of this
>        software must display the following acknowledgment:
>        "This product includes software developed by the OpenSSL Project
>        for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

This is the actual clause that is GPL-incompatible.

>     6. Redistributions of any form whatsoever must retain the following
>        acknowledgment:
>        "This product includes software developed by the OpenSSL Project
>        for use in the OpenSSL Toolkit (http://www.openssl.org/)"

I don't think this clause is even incompatible with the GPLv2, although
this is debatable.

> might be permitted by GPLv3 section 7:
> 
>       Notwithstanding any other provision of this License, for material you
>     add to a covered work, you may (if authorized by the copyright holders of
>     that material) supplement the terms of this License with terms:
> 
>         b) Requiring preservation of specified reasonable legal notices or
>         author attributions in that material or in the Appropriate Legal
>         Notices displayed by works containing it; or
> 
>         d) Limiting the use for publicity purposes of names of licensors or
>         authors of the material; or
> 
>         e) Declining to grant rights under trademark law for use of some
>         trade names, trademarks, or service marks; or

I'm afraid none of these exceptions apply for advertising material. The
FSF has always considered such clauses to be BAD(tm) (and I can't say I
find them very nice), it's no surprise the GPLv3 doesn't allow them.

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