Date: Tue, 12 Dec 2017 13:09:40 +0800 From: blubee blubeeme <gurenchan@gmail.com> To: "Greg 'groggy' Lehey" <grog@freebsd.org> Cc: Chris H <portmaster@bsdforge.com>, Jonathan Chen <jonc@chen.org.nz>, FreeBSD Ports <freebsd-ports@freebsd.org> Subject: Re: License and adopting software Message-ID: <CALM2mEnV6vqZ-jOUB_USXSJmOUSu5FpWvHMve2tzZqPhWBc6-A@mail.gmail.com> In-Reply-To: <20171211220910.GQ78437@eureka.lemis.com> References: <CALM2mEkxCZRm1nkNuiCxA7os5pwYz65A7c=xUAewbsLdh7KKeg@mail.gmail.com> <6309a4943c5761241e64f8133c837486@udns.ultimatedns.net> <20171211220910.GQ78437@eureka.lemis.com>
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On Tue, Dec 12, 2017 at 6:09 AM, Greg 'groggy' Lehey <grog@freebsd.org> wrote: > [format recovered] > > On Sunday, 10 December 2017 at 23:31:33 -0800, Chris H wrote: > > On Mon, 11 Dec 2017 12:24:53 +0800 "blubee blubeeme" < > gurenchan@gmail.com> said > >> On Mon, Dec 11, 2017 at 12:21 PM, Jonathan Chen <jonc@chen.org.nz> > wrote: > >>> On 11 December 2017 at 17:17, blubee blubeeme <gurenchan@gmail.com> > wrote: > >>>> I like some old software that's <= GPL2 but it seems like the original > >>>> developer is not and have not done any work on the software sine mid > >>>> 2000. > >>>> > >>>> I'd like to pick up the project, fix bugs BUT i'd like to migrate > >>>> from GPL to BSD license. > >>>> > >>>> How does one go about doing that? I have seen the GPL code but it > >>>> could be re-written how would that affect me re-writing the code > >>>> with a new copy center license? > >>> > >>> You basically have to get the original author to reassign copyright to > >>> you; after which you can do whatever you like to it. If you're basing > >>> your new work on the original work, you have to respect the LICENCE > >>> that it came with. > > > > It's also worth noting; you can dual-license it. That is: > > their code == their license > > your code (additions) == your license > > No, you can't. Read the conditions of the GPL license. If you add > code to a GPL product, the additions become subject to the GPL. > > Greg > -- > Sent from my desktop computer. > Finger grog@FreeBSD.org for PGP public key. > See complete headers for address and phone numbers. > This message is digitally signed. If your Microsoft mail program > reports problems, please read http://lemis.com/broken-MUA > I remember reading the history of FreeBSD and in the early days when parts of what eventually became FreeBSD was re-written. They obviously seen the prior closed source ATT source code and "re-wrote" it giving it a BSD license. It would be cool to hear how they were able to go about it. Anyone been through the process care to share their experience?
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