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- Subject: lua_qt vs Qt licenses (was Re: [ANN] tolua++ 1.0.6 and lua_qt4 0.0.2a)
- From: Javier Guerra <javier@...>
- Date: Fri, 9 Sep 2005 07:43:07 -0500
On Monday 12 September 2005 6:46 am, Ariel Manzur wrote:
i think the license strategy of TrollTech can be summarized as:
"if you make money with Qt, we want a part of it"
(which i can respect) the complex part here is because there are three parts
involved: Qt, lua_qt and a final application.
i think everybody agrees that lua_qt is "a derived work of" Qt in the sense of
the GPL license. but it would be usually packaged without Qt.
Since lua_qt was developed using the GPL edition of Qt, it can't be sold
commercially (because of 'entry number 182'). but according to 'entry number
187', it could be released under a non-viral open license. i guess its
important here not to bundle Qt.
so, if Ariel decides to switch to a BSD (or MIT) license for lua_qt (and
tolua++!), an application developer using it would have a choice:
- use GPL Qt to develop Open source apps
- use commercial Qt to develop any kind of apps
just as usual with Qt.
personally, i think lua_qt increases the value of Qt so much that if we could
ask TrollTech; they would happily encourage it anyway they could. (as long as
we ask a real person and not their license lawyer)
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