FYI-
I don't think this interpretation is shared by all legal types. If
the licensor allows you to choose, you can choose. Perl, for example,
is either Artistic or GPL.
If I want to distribute a fork of Perl which is under the GPL but
not Artistic license, I am able to do so. Of course you can always
get the un-forked version from the Perl folks and use Artistic, but
you can't use my distro except under the GPL, at least not under a
license you got from me.
My understanding is that the combination can change the source code
license of the parts, so long as it still complies with the source
code license of the parts. Compliance in a dual-license case means
compliance with either license. Which is why I think dual-licensing
is retarded; it basically invites forking over the licensing.
IIRC, Apple, for example, distributes Perl under the Artistic
license, and not under the GPL, in Mac OS X.
-wsv
On Mar 14, 2007, at 12:13 PM, Roy T. Fielding wrote:
> On Mar 13, 2007, at 7:52 PM, Henri Yandell wrote:
>
>> No problem - just an interesting thing that I think is probably not
>> well groked yet by our community. Using a dual-licensed product can
>> become single-licensed when its passed on.
>
> No, that simply is not true. Nothing we do can remove licenses
> from the copyright holder's code. The only effect of a
> combination is that the package as a whole is covered by the union
> of all licenses (where any dual-license component means "choose the
> union of least additions").
>
> The combination does not change the source code license of the parts.
>
> ....Roy
—
Wilfredo Sánchez - wsanchez@wsanchez.net
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