Bug 2416948

Summary:	Possible incorrect license tag for zstd package in Fedora
Product:	[Fedora] Fedora	Reporter:	Fuminobu TAKEYAMA <fuminobu.takeyama.h15>
Component:	zstd	Assignee:	Pádraig Brady <p>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	43	CC:	igor.raits, p, xinghong.chen
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Hardware:	Unspecified
OS:	Linux
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Last Closed:	2025-11-25 14:29:21 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Fuminobu TAKEYAMA 2025-11-25 07:20:29 UTC

In Fedora 43 (and also other versions), the SPEC file for the zstd package currently states:

> License: BSD-3-Clause AND GPL-2.0-only

However, the official zstd repository (README.md and license headers) for version v1.5.7 includes the following statement:

> This repository represents the reference implementation, provided as an open-source dual BSD OR GPLv2 licensed C library, and a command line utility producing and decoding .zst, .gz, .xz and .lz4 files.

https://github.com/facebook/zstd/blob/v1.5.7/README.md

> This source code is licensed under both the BSD-style license (found in the   
> LICENSE file in the root directory of this source tree) and the GPLv2 (found   
> in the COPYING file in the root directory of this source tree).   
> You may select, at your option, one of the above-listed licenses.

https://github.com/facebook/zstd/blob/v1.5.7/lib/compress/zstd_compress.c

This indicates that zstd is dual-licensed under BSD-3-Clause OR GPL-2.0-only, not AND.


* Is there an intentional reason Fedora uses BSD-3-Clause AND GPL-2.0-only for this package?
* If this is not intentional, should the tag be corrected to BSD-3-Clause OR GPL-2.0-only?

Reproducible: Always

Comment 1 Pádraig Brady 2025-11-25 14:29:21 UTC

Agreed as per https://docs.fedoraproject.org/en-US/legal/license-field/#_special_rules_for_or_expressions
I pushed a change of AND -> OR