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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    Hector Martin‏ @marcan42 Jan 10
    • Report Tweet
    • Report NetzDG Violation

    So here is an interesting copyright question to ponder: are we allowed to redistribute binaries of open source software that have been compiled and signed by Apple?

    12:05 AM - 10 Jan 2021
    • 8 Retweets
    • 97 Likes
    • Tóth Gábor Baltazár Leonard Janis König Paul Billy Tyson Key Lukas S. Miguel Ochoa Hdez datagutt Hail2U(Nyan)
    9 replies 8 retweets 97 likes
      1. New conversation
      2. Hector Martin‏ @marcan42 Jan 10
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        Recovery mode on Apple Silicon will only run Apple-Signed binaries, but that includes any random thing from macOS. You can just run /usr/bin/python from a macOS partition. But what if I want to use python without having a full macOS installed? Can I just redistribute those?

        3 replies 3 retweets 36 likes
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      3. Hector Martin‏ @marcan42 Jan 10
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        Effectively: does merely compiling (without making any changes vs. published, freely-licensed open source code) an application create a derivative work? My understanding is no, because there is no originality involved in the process, it is purely mechanical.

        4 replies 1 retweet 36 likes
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      4. Hector Martin‏ @marcan42 Jan 10
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        But this will be an interesting one to ask the lawyers, if we find that doing things this way would let us enable new ways of installing Linux.

        2 replies 3 retweets 37 likes
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      5. End of conversation
      1. New conversation
      2. Raphaël Jacquot  🔻‏ @sxpert1 Jan 10
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        Replying to @marcan42

        I believe you can, that’s what brew does when installing binaries directly.

        1 reply 0 retweets 2 likes
      3. Hector Martin‏ @marcan42 Jan 10
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        Replying to @sxpert1

        What do you mean? I'm not talking about binaries *you* build and *you* sign with an Apple-issued cert; I'm talking about binaries *Apple* built themselves and signed *as Apple* (not as a random macOS dev) and shipped with macOS.

        3 replies 0 retweets 11 likes
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      2. qwertymodo‏ @qwertymodo Jan 10
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        Replying to @marcan42

        Is it GPL2? That almost feels like a TiVo situation, and if it's GPL3 binaries, it wouldn't be you violating Apple's copyright, it would be Apple violating the anti-TiVo clauses of the GPL3.

        2 replies 0 retweets 3 likes
      3. Hector Martin‏ @marcan42 Jan 10
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        Replying to @qwertymodo

        Apple does not ship any GPL3 software for this reason.

        1 reply 0 retweets 6 likes
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      2. doragasu‏ @doragasu Jan 10
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        Replying to @marcan42

        That's an interesting question. I suspect Apple could prohibit redistribution, but I'm not an expert in the field. Maybe we could look to RedHat. Am I allowed to redistribute all FLOSS binaries built by RedHat? I think the answer is no.

        1 reply 0 retweets 2 likes
      3. doragasu‏ @doragasu Jan 10
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        Replying to @doragasu @marcan42

        What I see is that software companies are usually permissive in this regard, but my understanding is that when you build a binary, you hold the rights over it unless software license says otherwise (and AFAIK common FLOSS licenses don't).

        1 reply 0 retweets 0 likes
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      2. Niel‏ @nieldk Jan 10
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        Replying to @marcan42

        Short answer. No. The binaries container Apple propriatary, for example certificates signing the binaries. Probably also some modifikationer, new code etc. But, you can build from source, as Apple must provide the open source part. Which may or may not be complete code base.

        1 reply 0 retweets 1 like
      3. Hector Martin‏ @marcan42 Jan 10
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        Replying to @nieldk

        I'm assuming any actual code modifications are provided by Apple in OSS dumps under the original license (if they aren't, then of course the answer is no). The question here is about the signed binaries - and I have a strong suspicion certificates/signatures are not copyrightable

        2 replies 0 retweets 2 likes
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