Gentoo Archives: gentoo-dev

From: Michael Orlitzky <mjo@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] RFC: new global USE flag "srcdist"
Date: Thu, 02 Jan 2014 01:51:31
In Reply to: [gentoo-dev] RFC: new global USE flag "srcdist" by Ulrich Mueller
1 On 01/01/2014 05:28 PM, Ulrich Mueller wrote:
2 > Hi,
3 > According to GLEP 23 [1], the LICENSE variable regulates the software
4 > that is installed on a system. There is however some ambiguity in
5 > this: should it cover the actual files installed on the system, or
6 > everything that is included in the package's tarball? This question
7 > was asked several times in the past and arose in bug 492424 [2] again.
9 Why do I as a user care about the license of a package? I want packages
10 to be in @FREE in case I need to modify (and redistribute) them. But I
11 only need to modify the parts that I use.
13 If an otherwise-GPL package pulls in the latest Justin Bieber CD with
14 USE=badtaste, that's not really an issue for me, because I'm not using
15 it. I'm happy to install the rest of the package with the USE flag
16 unset. The CD might as well be a separate package with a different
17 license as far as I'm concerned.
19 In essence, I don't want to *use* code that isn't @FREE. This includes
20 the installed files, of course, but also the build system (that I use
21 temporarily). We could generalize this to "any file accessed during
22 emerge" to be on the safe side. That ensures that if I need to modify
23 (and redistribute) any part of the software that I use, I can.
25 What use case is there for having the LICENSE apply to anything else?
28 > I've always preferred the first interpretation, because the second one
29 > would inevitably require us to repack many tarballs, in order to keep
30 > their license in @FREE. This would for example include the Linux
31 > kernel, where we could no longer use deblobbing, but would have to
32 > provide our own tarball with firmware blobs removed. Not sure if users
33 > would be happy if we wouldn't install from pristine sources any more.
34 > We also have mirror and fetch restrictions which allow us to control
35 > what tarballs we distribute, independent of the LICENSE variable.
37 I think a better solution here, since these files are *installed*, is to
38 introduce a new local flag (e.g. unfreeblobs) for the kernel that would
39 append to LICENSE by the mechanism described below.
42 > Nevertheless, I also see the point for covering the distfiles
43 > contents.
44 >
45 > Within existing EAPIs we have only one LICENSE variable available.
46 > (Extending it would be possible in future EAPIs, but we would end up
47 > with a very long transition period.) USE conditional syntax is allowed
48 > in LICENSE, though. So I wonder if this couldn't be used for the
49 > intended purpose. For example, for specifying licenses of distfiles:
50 >
51 > LICENSE="<licenses of installed stuff>
52 > srcdist? ( <licenses of unused stuff in distfiles> )"
53 >
54 > This idea was discussed within the licenses team, and the overall
55 > reaction was positive.
56 >
57 > What do you think?
58 >
59 > Ulrich
60 >
61 > [1]
62 > [2]
63 >


Subject Author
Re: [gentoo-dev] RFC: new global USE flag "srcdist" Rich Freeman <rich0@g.o>
Re: [gentoo-dev] RFC: new global USE flag "srcdist" "Rick \\\"Zero_Chaos\\\" Farina" <zerochaos@g.o>