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commit: 557319dfdd2e495af848d1803227941c2a4f82fd |
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Author: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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AuthorDate: Tue Feb 11 10:05:58 2020 +0000 |
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Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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CommitDate: Fri Feb 21 11:07:33 2020 +0000 |
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URL: https://gitweb.gentoo.org/proj/policy-guide.git/commit/?id=557319df |
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|
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other-metadata: LICENSE |
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|
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Closes: https://bugs.gentoo.org/709020 |
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Closes: https://github.com/gentoo/policy-guide/pull/12 |
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Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> |
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|
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other-metadata.rst | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ |
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1 file changed, 49 insertions(+) |
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|
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diff --git a/other-metadata.rst b/other-metadata.rst |
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index f05014b..14651cf 100644 |
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--- a/other-metadata.rst |
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+++ b/other-metadata.rst |
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@@ -94,4 +94,53 @@ this circumstance, and they will not fail for users. |
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common, and there is little harm in overspecifying it. |
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|
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|
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+.. index:: license |
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+ |
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+LICENSE |
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+------- |
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+:Source: QA |
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+:Reported: no |
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+ |
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+The ``LICENSE`` variable must explicitly list licenses for all files |
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+installed by the package. If some of the applicable licenses are |
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+conditional to USE flags, appropriate USE conditionals need to |
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+be expressed in the variable. |
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+ |
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+If a package bundles any dependencies that are either installed, |
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+statically linked or in any other way combined with installed files, |
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+the licenses of these dependencies need to be listed as well. This |
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+is not presently required when statically linking to dependencies |
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+installed by separate packages in the repository. |
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+ |
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+The licenses for files that are not installed but that are used at build |
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+time are not listed explicitly. |
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+ |
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+*Rationale*: the primary purpose of the license support in the package |
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+manager is to provide the users with ability to decide on acceptable |
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+licenses for their installed systems (and binary packages). In order |
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+for this to work effectively, the packages must provide a correct |
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+and complete license list. |
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+ |
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+Static linking combines code from multiple packages, potentially covered |
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+by different licenses. Listing all licenses is the simplest way |
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+of ensuring that nothing is missed, as well as protecting against wrong |
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+derivative work licenses stated upstream (i.e. when a less restrictively |
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+licensed package links to a more restrictively licensed dependency). |
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+ |
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+Listing of licenses is enforced for bundled dependencies but not for |
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+static linking to other packages, as in the latter case it is |
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+non-trivial to implement and the package manager already verifies |
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+the license while building dependencies (but not when installing binary |
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+packages). |
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+ |
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+The ebuild format does not provide a separate variable to list licenses |
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+needed only at build time. So far it has not been considered important |
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+enough to have one, as the relevant files exist only temporarily |
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+on the user's system and do not affect the runtime use of packages. |
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+ |
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+.. Note:: |
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+ Please remember to include the licenses of support files provided |
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+ by the ebuild, e.g. init.d scripts (usually GPL-2). |
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+ |
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+ |
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.. _metadata invariance: https://projects.gentoo.org/pms/7/pms.html#x1-600007.1 |
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