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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 21:12:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 21:12:04 +0000
commiteac54b7c4aec25060d7bd856f7cdc290943d6aae (patch)
tree9a6d81c9f88df4698e746d63d14ddafeddd918b8 /COPYING
parentInitial commit. (diff)
downloadxz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.tar.xz
xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.zip
Adding upstream version 5.4.1.upstream/5.4.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+
+XZ Utils Licensing
+==================
+
+ Different licenses apply to different files in this package. Here
+ is a rough summary of which licenses apply to which parts of this
+ package (but check the individual files to be sure!):
+
+ - liblzma is in the public domain.
+
+ - xz, xzdec, and lzmadec command line tools are in the public
+ domain unless GNU getopt_long had to be compiled and linked
+ in from the lib directory. The getopt_long code is under
+ GNU LGPLv2.1+.
+
+ - The scripts to grep, diff, and view compressed files have been
+ adapted from gzip. These scripts and their documentation are
+ under GNU GPLv2+.
+
+ - All the documentation in the doc directory and most of the
+ XZ Utils specific documentation files in other directories
+ are in the public domain.
+
+ - Translated messages are in the public domain.
+
+ - The build system contains public domain files, and files that
+ are under GNU GPLv2+ or GNU GPLv3+. None of these files end up
+ in the binaries being built.
+
+ - Test files and test code in the tests directory, and debugging
+ utilities in the debug directory are in the public domain.
+
+ - The extra directory may contain public domain files, and files
+ that are under various free software licenses.
+
+ You can do whatever you want with the files that have been put into
+ the public domain. If you find public domain legally problematic,
+ take the previous sentence as a license grant. If you still find
+ the lack of copyright legally problematic, you have too many
+ lawyers.
+
+ As usual, this software is provided "as is", without any warranty.
+
+ If you copy significant amounts of public domain code from XZ Utils
+ into your project, acknowledging this somewhere in your software is
+ polite (especially if it is proprietary, non-free software), but
+ naturally it is not legally required. Here is an example of a good
+ notice to put into "about box" or into documentation:
+
+ This software includes code from XZ Utils <https://tukaani.org/xz/>.
+
+ The following license texts are included in the following files:
+ - COPYING.LGPLv2.1: GNU Lesser General Public License version 2.1
+ - COPYING.GPLv2: GNU General Public License version 2
+ - COPYING.GPLv3: GNU General Public License version 3
+
+ Note that the toolchain (compiler, linker etc.) may add some code
+ pieces that are copyrighted. Thus, it is possible that e.g. liblzma
+ binary wouldn't actually be in the public domain in its entirety
+ even though it contains no copyrighted code from the XZ Utils source
+ package.
+
+ If you have questions, don't hesitate to ask the author(s) for more
+ information.
+