They are complying, the original Zig license is at the bottom of the file lib/zen/std/LICENSE (complete with "Copyright (c) 2019 Andrew Kelley"). I just downloaded it from the Zen website, and the tarball is dated 2020-09-04.
Yes, because, as I explained above, they still retained the original Zig copyright in their LICENSE file. The MIT/Expat license doesn't say anything about the file headers. It only requires that "The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software."
Does a single notice in the lib/zen/std/LICENSE file satisfy the requirement "shall be included in all copies or substantial portions". If many (source) files are copied and if each file contains the copyright notice, then the copyright statement "shall be included in all copies" (or substantial portions) of these files - and not just in one file...
>Does a single notice in the lib/zen/std/LICENSE file satisfy the requirement "shall be included in all copies or substantial portions".
Yep. The single files (or substantial portions of them) are not what's being distributed in this case. The Software is the thing being distributed, and it meets the requirements as described in the license (that the original copyright and permission notice be included). Therefore, it is in compliance.
If there is individual notice on the file because the file is a work individually licensed under MIT, removing it from the file is removing it from an MIT protected work in violation of the license.
That the individually-protected work is also included in an compilation which is itself licensed under MIT does not remove or loosen any licensing requirements on the smaller work.
>If there is individual notice on the file because the file is a work individually licensed under MIT, removing it from the file is removing it from an MIT protected work in violation of the license.
Why is that in violation of the license? The only condition specified in the MIT/Expat license is this:
>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
Each file is not "the Software". "The Software" means the Zig/Zen projects as a whole. The "above copyright notice and this permission notice" is included in the copy of Zen. Therefore, it is in compliance.
I wrote in another comment:
>In addition, the Zen headers say "This project may be licensed under the terms of the ConnectFree Reference Source License" and "See the LICENSE file at the root of this project for complete information". This statement is enough to imply that the project as a whole is covered by the specified LICENSE file.
Can you give any support for this which is not your own "I say so because that's how I understand what I have read"?
That is, can you give a link of some court case where your claim was confirmed, or a link to a project where some big company changed the copyright lines in some library source files, when these lines were previously MIT licensed?
If not, repeating your own claims in many posts here doesn't make your claims more believable.
I still understand that every source file (as in, having the lines that produce executable code) containing a copyright is a "software" where the copyright lines have to be preserved as soon as the author initially wrote the lines, and I need some independent evidence, as stated before, to be convinced otherwise.
I don't know of any court cases or other precedent, no. I am working with the definitions of "software" and "program" as I am familiar with them being used in various software licenses. But that doesn't really matter because the only assumptions I'm basing this argument on are contained in the MIT/Expat and what connectFree has done with Zen.
For the sake of the argument, let's grant you the premise that each file is its own "software" (as the word is used in the MIT/Expat). The only requirement of the license is this: "The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software." So even if connectFree removed all the copyright notices in the source code files, they still meet that condition because the original Zig license is included in their modified copy of Zig. It doesn't matter what the definition of "software" is here, because they meet the conditions regardless of what that definition is.
Wrong. If every source file is "software" the copyright should not be removed from the source file.
There are even international laws about copyrights, and removing the original copyright is simply a violation even on the international level -- the original author has to remain an author. It is he who initially copyrighted the files. Your "working as you are familiar" doesn't mean a thing.
So how do you tell the difference between the files having been licensed individually or only the whole compilation having been licensed?
Here is some of the license text:
> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software") [...]
That seems to me to indicate that it applies to the whole software package and not any single file (unless you could call that single file a "software" in its own right, maybe?)
Meanwhile, the text in each individual file only says this:
> So how do you tell the difference between the files having been licensed individually or only the whole compilation having been licensed?
One way you could check is if each of the files has their own copyright and license notice, and the license notice includes, directly or by reference, terms which require preservation of the accompanying copyright notice.
How can you be sure the license notice wasn't meant to apply to the project as a whole, as I imagine is overwhelmingly the more common intention? That is the obvious question here.
They are distributing a modified copy of the software and including the original copyright and permission notice. Therefore, they are in compliance. It's as simple as that.
If they were distributing the individual files (or "substantial portions" of them) without a copy of the original copyright and permission notice, then you'd be correct. But that's not the case here.
Because each source file on its own is a work subject to copyright, with a copyright notice and particular license attached, and the license attached requires retaining the notice.
The fact that they are also included in a compilation which, as a compilation, is separately subject to copyright and has it's own copyright notice and license attached, which happens to be the same license, doesn't change that one bit.
I don't agree that each file on its own is a separate work subject to copyright. Even the original Zig headers say that each file "is part of zig" (emphasis mine). The "work" in this case is the software project as a whole. That's what's being distributed.
In addition, the Zen headers say "This project may be licensed under the terms of the ConnectFree Reference Source License" and "See the LICENSE file at the root of this project for complete information". This statement is enough to imply that the project as a whole is covered by the specified LICENSE file.
> I don't agree that each file on its own is a separate work subject to copyright.
Each is an individual work of authorship meeting the requirements for protection under copyright law and as such is automatically protected on creation as an individual work. Each is distributed with an individual copyright notice and individual statement of the license terms, so the recipient also has notice that the protection which is automatic under copyright law is claimed by the author, and the licensing terms applicable to the work. Redistribution without preservation of the copyright notice that appears in the work as required by the license is a clear, willful violation of the license.
