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  4. [SOLVED]Freely distribute the Qt shared libraries (DLLs)?
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[SOLVED]Freely distribute the Qt shared libraries (DLLs)?

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    dangelog
    wrote on last edited by
    #10

    [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 :-)

    Software Engineer
    KDAB (UK) Ltd., a KDAB Group company

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      anselmolsm
      wrote on last edited by
      #11

      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does not depend on modifications you did in the library - it must be possible for the software to be linked with a newer version of the LGPL library (Qt, in this case :-P), not only to your Qt version.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

      Anselmo L. S. Melo (anselmolsm)

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        Loaden
        wrote on last edited by
        #12

        Thanks a lot!!

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        • D Offline
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          dangelog
          wrote on last edited by
          #13

          [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." (?)

          Software Engineer
          KDAB (UK) Ltd., a KDAB Group company

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            goetz
            wrote on last edited by
            #14

            [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....

            http://www.catb.org/~esr/faqs/smart-questions.html

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              dangelog
              wrote on last edited by
              #15

              [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.

              Software Engineer
              KDAB (UK) Ltd., a KDAB Group company

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                goetz
                wrote on last edited by
                #16

                [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.

                http://www.catb.org/~esr/faqs/smart-questions.html

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                  giesbert
                  wrote on last edited by
                  #17

                  But if you ask 3 lawyers, you perhaps get also 4 answers.
                  Perhaps the Trolls can make a definite statement? That could then also be put to FAQ?

                  Nokia Certified Qt Specialist.
                  Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                    Loaden
                    wrote on last edited by
                    #18

                    Hi, All, Another question that is can i distribute all files (e.g. my apps, Qt DLLs) use one package (e.g. one NSIS install package, or one zip/7z/tar.gz package) ?
                    Many thanks!

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                      andre
                      wrote on last edited by
                      #19

                      Sure you can*!

                      *) Opinion of a non-lawer.

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                        Loaden
                        wrote on last edited by
                        #20

                        Change state to SOLVED.
                        Thanks all!

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