[SOLVED]Freely distribute the Qt shared libraries (DLLs)?
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Yes, you are correct. LGPL allows you to keep the source code of your application closed.
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Yes, you can.
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Yes, but some user don't know this simple procedure and i have to write a minimal guide for this.
User != technician :P[quote author="peppe" date="1292403048"]... which you already do by using dynamic linking: the user will just have to drop in the replacements.[/quote]
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[quote author="stuk" date="1292403168"]Yes, but some user don't know this simple procedure and i have to write a minimal guide for this.
User != technician :P[quote author="peppe" date="1292403048"]... which you already do by using dynamic linking: the user will just have to drop in the replacements.[/quote]
[/quote]
As far as I know, the LGPL does not require you to explain how to do it. Just to make it possible to do so. I don't think writing a manual that states that you can drop in newer versions of the Qt library files is needed. -
[quote author="stuk" date="1292403168"]Yes, but some user don't know this simple procedure and i have to write a minimal guide for this.
User != technician :P[quote author="peppe" date="1292403048"]... which you already do by using dynamic linking: the user will just have to drop in the replacements.[/quote]
[/quote]The LGPL doesn't require you to make your users smarter :-)
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This 'allow updates' requirement is a way to guarantee your proprietary application does not depend on modifications you did in the library - it must be possible for the software to be linked with a newer version of the LGPL library (Qt, in this case :-P), not only to your Qt version. So, if you modify Qt (what is not you case, as you said), to respect LGPL you must submit the changes upstream.
I'm not a lawyer [1], please correct me if I'm wrong
[1] In 100% of the license discussions, someone must say this sentence, at least once =P
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[quote author="anselmolsm" date="1292412214"]I'm not a lawyer [1], please correct me if I'm wrong
[1] In 100% of the license discussions, someone must say this sentence, at least once =P[/quote]
You're absolutely right. Was thinking if this should be some kind of FAQ: "Never ever ask for legal advice on forums, mailing lists, IRC and whatsoever. Consult an IT lawyer." (?)
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[quote author="peppe" date="1292457362"]You're absolutely right. Was thinking if this should be some kind of FAQ: "Never ever ask for legal advice on forums, mailing lists, IRC and whatsoever. Consult an IT lawyer." (?)
[/quote]That might not help either. If you ask three of these guys you will get four opinions....
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[quote author="Volker" date="1292492418"][quote author="peppe" date="1292457362"]You're absolutely right. Was thinking if this should be some kind of FAQ: "Never ever ask for legal advice on forums, mailing lists, IRC and whatsoever. Consult an IT lawyer." (?)
[/quote]That might not help either. If you ask three of these guys you will get four opinions....[/quote]
Haha, ok, point taken, but at least they're supposed to know the matter and you sign agreements with them, whilst on forums you have no guarantees whatsoever.
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[quote author="peppe" date="1292493548]Haha, ok, point taken, but at least they're supposed to know the matter and you sign agreements with them, whilst on forums you have no guarantees whatsoever.[/quote]
That's true. It's in most cases better to ask a specialized lawyer than a forum with all that "I believe that..." answers.