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not sure if im correct, but i think this thread is more ontopic in the slug-chat list, but im sure debating licensing isnt ontopic for a linux discussion list.
anyone with higher authority want to clarrify?
not trying to stiffle debate but just trying to classify it
Dean
David Guest wrote: | Jeff Waugh wrote: | | | <quote who="Brad Kowalczyk"> | | | |> Just one small Q, lets say I develop an app and release it under | |> say the GPL, if I then improve on this app adding new features | |> and functionality and wish to make a $ with it can I then release | |> it under a <shudder>>closed source</shudder> license even though | |> it is heavily based on GPL'd code? | | | | | | Because you hold the copyright, yes. | | | | Here's an example: | | | | Ximian wrote the Evolution groupware suite, so hold the copyright. | | They require copyright attribution from contributors so that they | | continue to hold copyright over the complete work. That allowed | | them to ship Evolution with the Exchange connector (which until a | | few weeks ago, was closed). | | | | If their contributors had not assigned copyright, Ximian would not | | be able to ship a proprietary module along with their contributor's | | code. Quite a few projects work in a similar fashion | | (FSF/GNU-backed projects, Twisted, etc). | | Jeff | | A few questions if I may. | | Are there any projects where subsequent developers have also dual | licensed their contributions under the GPL and a closed source | license? Essentially they would trying to do the same as Ximian or | MySQL, viz. have an income stream from commercial extension and | application while making their code freely available under the GPL. | | Alternatively are their commercial contracts for assigning copyright | under dual licensing? (e.g. I get one dollar for every seat where this | application is used under a commercial license.) Or is this too messy | to handle in practice? | | David | | -- | PGP public key 0x24606D9C at pgp.mit.edu | 56D7 3608 6D73 0E11 064E 79C8 AC8E 6CAE 2460 6D9C | | -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
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