Bump version and soname for 5.4.6.

The new RISC-V filter was added to the specification, in addition to
updating the specification URL.

.codespellrc

@@ -1,24 +0,0 @@
-[codespell]
-
-# Skip all translation files and a few other autogenerated files.
-# The autotool files should have their typos fixed in the upstream, but
-# until then we will blacklist them here.
-skip = *.po,*.pot,./po4a/man,./doc/api,./configure,./autom4te.cache,./m4/libtool.m4,./build-aux/depcomp,./build-aux/ltmain.sh,./build-aux/config.guess,./build-aux/config.rpath,./m4/po.m4,./build-aux/config.sub
-
-# Ignore false positive matching words. Ideally codespell would allow
-# ignoring words for specific files, but that does not appear to be
-# supported. Instead we need to hope we do not make these typos.
-# Additionally, the ignored words must be specified lower-case even though
-# some of the false positives only occurred upper-case.
-# ANS - used as a variable name in xzmore.in.
-# bu - groff syntax for creating a bullet list item, used in xz.1.
-# te - groff syntax, used in xz.1.
-# caf - command line options for tar example, used in xz.1.
-ignore-words-list = ans,bu,te,caf
-
-# Add extra dictionaries to help improvement comments, docs, etc.
-builtin = clear,rare,informal,usage,names
-
-# Always default to highest interactive level to avoid accidentally
-# changing a false positive or picking the wrong replacement.
-interactive = 3

.github/SECURITY.md

@@ -1,23 +0,0 @@
-# Security Policy
-
-## Supported Versions
-
-We provide security updates to the development branch and the stable
-branches. Security patches for old releases are available on the
-[project website](https://xz.tukaani.org/xz-utils/).
-
-## Reporting a Vulnerability
-
-If you discover a security vulnerability in this project, please
-report it privately. **Do not disclose it as a public issue.** This gives
-us time to work with you to fix the issue before public exposure, reducing
-the chance that the exploit will be used before a patch is released.
-
-You may submit a report by emailing us at
-[xz@tukaani.org](mailto:xz@tukaani.org), or through
-[Security Advisories](https://github.com/tukaani-project/xz/security/advisories/new).
-While both options are available, we prefer email.
-
-This project is maintained by a team of volunteers on a reasonable-effort
-basis. As such, please give us 90 days to work on a fix before
-public exposure.

.github/workflows/ci.yml

@@ -1,160 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# Author: Jia Tan
-#
-#############################################################################
-
-name: CI
-
-on:
-  # Triggers the workflow on push or pull request events but only for the master branch
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-  # Allows running workflow manually
-  workflow_dispatch:
-
-jobs:
-  POSIX:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-        build_system: [autotools, cmake]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 #v4.1.0
-
-      ########################
-      # Install Dependencies #
-      ########################
-
-      # Install Autotools on Linux
-      - name: Install Dependencies
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y autoconf automake build-essential po4a autopoint gcc-multilib doxygen musl-tools
-
-      # Install Autotools on Mac
-      - name: Install Dependencies
-        if: ${{ matrix.os == 'macos-latest' && matrix.build_system == 'autotools' }}
-        run: brew install autoconf automake libtool po4a doxygen
-
-      # Install CMake on Linux
-      - name: Install Dependencies
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'cmake' }}
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y build-essential cmake musl-tools
-
-      # Install CMake on Mac
-      - name: Install Dependencies
-        if: ${{ matrix.os == 'macos-latest' && matrix.build_system == 'cmake' }}
-        run: brew install cmake
-
-      ##################
-      # Build and Test #
-      ##################
-
-      # -b specifies the build system to use.
-      # -p specifies the phase (build or test) to help narrow down an error
-      #    if one occurs.
-      #
-      # The first two builds/tests are only run on Autotools Linux and
-      # affect the CFLAGS. Resetting the CFLAGS requires clearing the
-      # config cache between runs, so the tests that require CFLAGS are
-      # done first.
-      - name: Build 32-bit
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.sh -b autotools -p build -f "-m32"
-      - name: Test 32-bit
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: |
-            ./build-aux/ci_build.sh -b autotools -p test -f "-m32" -n 32_bit
-            cd ../xz_build && make distclean
-
-      # ifunc must be disabled for this test because __attribute__ ifunc is
-      # incompatible with -fsanitize=address.
-      #
-      # The sandbox must also be disabled because it will prevent access to
-      # the /proc/ filesystem on Linux, which is used by the sanitizer's
-      # instrumentation.
-      - name: Build with -fsanitize=address,undefined
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.sh -b autotools -p build -f "-fsanitize=address,undefined" -d ifunc,sandbox
-      - name: Test with -fsanitize=address,undefined
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: |
-            ./build-aux/ci_build.sh -b autotools -p test -f "-fsanitize=address,undefined" -d ifunc,sandbox
-            cd ../xz_build && make distclean
-
-      # musl libc has some slight differences compared to glibc, including
-      # the lack of ifunc support. This tests if the ifunc detection
-      # functions properly since musl-gcc can compile with ifunc support,
-      # but will fail at runtime.
-      - name: Build with musl libc
-        if: ${{ matrix.os == 'ubuntu-latest'}}
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p build -m "/usr/bin/musl-gcc"
-      - name: Test with musl libc
-        if: ${{ matrix.os == 'ubuntu-latest'}}
-        run: |
-            ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p test -m "/usr/bin/musl-gcc"
-      - name: Clean up musl libc run
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: cd ../xz_build && make distclean
-
-      - name: Build with full features
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p build
-      - name: Test with full features
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p test -n full_features
-
-      - name: Build without encoders
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d encoders,shared -p build
-      - name: Test without encoders
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d encoders,shared -p test -n no_encoders
-
-      - name: Build without decoders
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d decoders,shared -p build
-      - name: Test without decoders
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d decoders,shared -p test -n no_decoders
-
-      - name: Build without threads
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d threads,shared -p build
-      - name: Test without threads
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d threads,shared -p test -n no_threads
-
-      - name: Build without BCJ filters
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d bcj,shared,nls -p build
-      - name: Test without BCJ filters
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d bcj,shared,nls -p test -n no_bcj
-
-      - name: Build without Delta filters
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d delta,shared,nls -p build
-      - name: Test without Delta filters
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d delta,shared,nls -p test -n no_delta
-
-      - name: Build without sha256 check
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -c crc32,crc64 -d shared,nls -p build
-      - name: Test without sha256 check
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -c crc32,crc64 -d shared,nls -p test -n no_sha256
-
-      - name: Build without crc64 check
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -c crc32,sha256 -d shared,nls -p build
-      - name: Test without crc64 check
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -c crc32,sha256 -d shared,nls -p test -n no_crc64
-
-      - name: Build small
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d small -p build
-      - name: Test small
-        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d small -p test -n small
-
-      # Attempt to upload the test logs as artifacts if any step has failed
-      - uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 #v4.0.0
-        if: ${{ failure() }}
-        with:
-          name: ${{ matrix.os }} ${{ matrix.build_system }} Test Logs
-          path: build-aux/artifacts

.github/workflows/windows-ci.yml

@@ -1,124 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# Author: Jia Tan
-#
-#############################################################################
-
-name: Windows-CI
-
-# Only run the Windows CI manually since it takes much longer than the others.
-on: workflow_dispatch
-
-jobs:
-  POSIX:
-    strategy:
-      matrix:
-        # Test different environments since the code may change between
-        # them and we want to ensure that we support all potential users.
-        # clang64 builds are currently broken when building static libraries
-        # due to a bug in ldd search path:
-        # https://github.com/llvm/llvm-project/issues/67779
-        # TODO - re-enable clang64 when this is resolved.
-        msys2_env: [mingw64, mingw32, ucrt64, msys]
-        build_system: [autotools, cmake]
-
-    # Set the shell to be msys2 as a default to avoid setting it for
-    # every individual run command.
-    defaults:
-      run:
-        shell: msys2 {0}
-
-    runs-on: windows-latest
-
-    steps:
-      #####################
-      # Setup Environment #
-      #####################
-
-      # Rely on the msys2 GitHub Action to set up the msys2 environment.
-      - name: Setup MSYS2
-        uses: msys2/setup-msys2@27b3aa77f672cb6b3054121cfd80c3d22ceebb1d #v2.20.1
-        with:
-          msystem: ${{ matrix.msys2_env }}
-          update: true
-          install: pactoys make
-
-      - name: Checkout code
-        # Need to explicitly set the shell here since we set the default
-        # shell as msys2 earlier. This avoids an extra msys2 dependency on
-        # git.
-        shell: powershell
-        # Avoid Windows line endings. Otherwise test_scripts.sh will fail
-        # because the expected output is stored in the test framework as a
-        # text file and will not match the output from xzgrep.
-        run: git config --global core.autocrlf false
-
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 #v4.1.0
-
-
-      ########################
-      # Install Dependencies #
-      ########################
-
-        # The pacman repository has a different naming scheme for default
-        # msys packages than the others. The pacboy tool allows installing
-        # the packages possible in matrix setup without a burdensome amount
-        # of ifs.
-      - name: Install Dependencies
-        if: ${{ matrix.msys2_env == 'msys' && matrix.build_system == 'autotools' }}
-        run: pacman --noconfirm -S --needed autotools base-devel doxygen gettext-devel gcc
-
-      - name: Install Dependencies
-        if: ${{ matrix.msys2_env != 'msys' && matrix.build_system == 'autotools' }}
-        run: pacboy --noconfirm -S --needed autotools:p toolchain:p doxygen:p
-
-      - name: Install Dependencies
-        if: ${{ matrix.msys2_env == 'msys' && matrix.build_system == 'cmake' }}
-        run: pacman --noconfirm -S --needed cmake base-devel gcc
-
-      - name: Install Dependencies
-        if: ${{ matrix.msys2_env != 'msys' && matrix.build_system == 'cmake' }}
-        run: pacboy --noconfirm -S --needed cmake:p toolchain:p
-
-      ##################
-      # Build and Test #
-      ##################
-
-      - name: Build with full features
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -p build
-      - name: Test with full features
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -p test -n full_features
-
-      - name: Build without threads
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d threads,shared -p build
-      - name: Test without threads
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d threads,shared -p test -n no_threads
-
-      - name: Build without encoders
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d encoders,shared -p build
-      - name: Test without encoders
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d encoders,shared -p test -n no_encoders
-
-      - name: Build without decoders
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d decoders,shared -p build
-      - name: Test without decoders
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -d decoders,shared -p test -n no_decoders
-
-      - name: Build with only crc32 check
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -c crc32 -d shared,nls -p build
-      - name: Test with only crc32 check
-        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -c crc32 -d shared,nls -p test -n crc32_only
-
-
-      ###############
-      # Upload Logs #
-      ###############
-
-      # Upload the test logs as artifacts if any step has failed.
-      - uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 #v4.0.0
-        if: ${{ failure() }}
-        with:
-          name: ${{ matrix.msys2_env }} ${{ matrix.build_system }} Test Logs
-          path: build-aux/artifacts

.gitignore

@@ -25,7 +25,6 @@ Makefile.in
 /libtool
 /stamp-h1
 
-build-aux/artifacts
 build-aux/compile
 build-aux/config.guess
 build-aux/config.rpath
@@ -67,7 +66,6 @@ coverage
 /tests/test_index
 /tests/test_index_hash
 /tests/test_lzip_decoder
-/tests/test_microlzma
 /tests/test_memlimit
 /tests/test_stream_flags
 /tests/test_vli

AUTHORS

@@ -9,13 +9,15 @@ Authors of XZ Utils
     specifically the LZMA SDK <https://7-zip.org/sdk.html>. Without
     this code, XZ Utils wouldn't exist.
 
-    The SHA-256 implementation in liblzma is based on code written by
+    The SHA-256 implementation in liblzma is based on the code found from
-    Wei Dai in Crypto++ Library <https://www.cryptopp.com/>.
+    7-Zip <https://7-zip.org/>, which has a modified version of the SHA-256
+    code found from Crypto++ <https://www.cryptopp.com/>. The SHA-256 code
+    in Crypto++ was written by Kevin Springle and Wei Dai.
 
-    A few scripts have been adapted from GNU gzip. The original
+    Some scripts have been adapted from gzip. The original versions
-    versions were written by Jean-loup Gailly, Charles Levert, and
+    were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
-    Paul Eggert. Andrew Dudman helped adapting the scripts and their
+    Andrew Dudman helped adapting the scripts and their man pages for
-    man pages for XZ Utils.
+    XZ Utils.
 
     The initial version of the threaded .xz decompressor was written
     by Sebastian Andrzej Siewior.
@@ -23,31 +25,15 @@ Authors of XZ Utils
     The initial version of the .lz (lzip) decoder was written
     by Michał Górny.
 
-    Architecture-specific CRC optimizations were contributed by
+    CLMUL-accelerated CRC code was contributed by Ilya Kurdyukov.
-    Ilya Kurdyukov, Hans Jansen, and Chenxi Mao.
 
     Other authors:
       - Jonathan Nieder
       - Joachim Henke
 
-    Many people have contributed improvements or reported bugs.
+    The GNU Autotools-based build system contains files from many authors,
-    Most of these people are mentioned in the file THANKS.
+    which I'm not trying to list here.
 
-    The translations of the command line tools and man pages have been
+    Several people have contributed fixes or reported bugs. Most of them
-    contributed by many people via the Translation Project:
+    are mentioned in the file THANKS.
-
-      - https://translationproject.org/domain/xz.html
-      - https://translationproject.org/domain/xz-man.html
-
-    The authors of the translated man pages are in the header comments
-    of the man page files. In the source package, the authors of the
-    translations are in po/*.po and po4a/*.po files.
-
-    Third-party code whose authors aren't listed here:
-
-      - GNU getopt_long() in the 'lib' directory is included for
-        platforms that don't have a usable getopt_long().
-
-      - The build system files from GNU Autoconf, GNU Automake,
-        GNU Libtool, GNU Gettext, Autoconf Archive, and related files.
 

COPYING

@@ -6,95 +6,72 @@ XZ Utils Licensing
     is a rough summary of which licenses apply to which parts of this
     package (but check the individual files to be sure!):
 
-      - liblzma is under the BSD Zero Clause License (0BSD).
+      - liblzma is in the public domain.
 
-      - The command line tools xz, xzdec, lzmadec, and lzmainfo are
+      - xz, xzdec, and lzmadec command line tools are in the public
-        under 0BSD except that, on systems that don't have a usable
+        domain unless GNU getopt_long had to be compiled and linked
-        getopt_long, GNU getopt_long is compiled and linked in from the
+        in from the lib directory. The getopt_long code is under
-        'lib' directory. The getopt_long code is under GNU LGPLv2.1+.
+        GNU LGPLv2.1+.
 
       - The scripts to grep, diff, and view compressed files have been
-        adapted from GNU gzip. These scripts (xzgrep, xzdiff, xzless,
+        adapted from gzip. These scripts and their documentation are
-        and xzmore) are under GNU GPLv2+. The man pages of the scripts
+        under GNU GPLv2+.
-        are under 0BSD; they aren't based on the man pages of GNU gzip.
 
-      - Most of the XZ Utils specific documentation that is in
+      - All the documentation in the doc directory and most of the
-        plain text files (like README, INSTALL, PACKAGERS, NEWS,
+        XZ Utils specific documentation files in other directories
-        and ChangeLog) are under 0BSD unless stated otherwise in
+        are in the public domain.
-        the file itself. The files xz-file-format.txt and
-        lzma-file-format.xt are in the public domain but may
-        be distributed under the terms of 0BSD too.
-
-      - Doxygen-generated HTML version of the liblzma API documentation:
-        While Doxygen is under the GNU GPLv2, the license information
-        in Doxygen includes the following exception:
-
-            Documents produced by doxygen are derivative works
-            derived from the input used in their production;
-            they are not affected by this license.
 
         Note: The JavaScript files (under the MIT license) have
-        been removed from the Doxygen output.
+        been removed from the Doxygen-generated HTML version of the
+        liblzma API documentation. Doxygen itself is under the GNU GPL
+        but the remaining files generated by Doxygen are not affected
+        by the licenses used in Doxygen because Doxygen licensing has
+        the following exception:
 
-      - The XZ logo (xz-logo.png) included in the Doxygen-generated
+            "Documents produced by doxygen are derivative works
-        documentation is under the Creative Commons BY-SA 4.0 license.
+            derived from the input used in their production;
+            they are not affected by this license."
 
-      - Translated messages and man pages are under 0BSD except that
+      - Translated messages are in the public domain.
-        some old translations are in the public domain.
 
-      - Test files and test code in the 'tests' directory, and
+      - The build system contains public domain files, and files that
-        debugging utilities in the 'debug' directory are under
+        are under GNU GPLv2+ or GNU GPLv3+. None of these files end up
-        the BSD Zero Clause License (0BSD).
+        in the binaries being built.
 
-      - The GNU Autotools based build system contains files that are
+      - Test files and test code in the tests directory, and debugging
-        under GNU GPLv2+, GNU GPLv3+, and a few permissive licenses.
+        utilities in the debug directory are in the public domain.
-        These files don't affect the licensing of the binaries being
-        built.
 
-      - The extra directory contain files that are under various
+      - The extra directory may contain public domain files, and files
-        free software licenses.
+        that are under various free software licenses.
 
-    For the files under the BSD Zero Clause License (0BSD), if
+    You can do whatever you want with the files that have been put into
-    a copyright notice is needed, the following is sufficient:
+    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.
 
-        Copyright (C) The XZ Utils authors and contributors
+    As usual, this software is provided "as is", without any warranty.
 
-    If you copy significant amounts of 0BSD-licensed code from XZ Utils
+    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
-    it is not legally required by the license terms. Here is an example
+    naturally it is not legally required. Here is an example of a good
-    of a good notice to put into "about box" or into documentation:
+    notice to put into "about box" or into documentation:
 
         This software includes code from XZ Utils
         <https://xz.tukaani.org/xz-utils/>.
 
     The following license texts are included in the following files:
-      - COPYING.0BSD: BSD Zero Clause License
       - 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
-      - COPYING.CC-BY-SA-4.0: Creative Commons Attribution-ShareAlike 4.0
-                              International Public License
 
-    A note about old XZ Utils releases:
+    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.
 
-        XZ Utils releases 5.4.6 and older and 5.5.1alpha have a
+    If you have questions, don't hesitate to ask the author(s) for more
-        significant amount of code put into the public domain and
+    information.
-        that obviously remains so. The switch from public domain to
-        0BSD for newer releases was made in Febrary 2024 because
-        public domain has (real or perceived) legal ambiguities in
-        some jurisdictions.
-
-        There is very little *practical* difference between public
-        domain and 0BSD. The main difference likely is that one
-        shouldn't claim that 0BSD-licensed code is in the public
-        domain; 0BSD-licensed code is copyrighted but available under
-        an extremely permissive license. Neither 0BSD nor public domain
-        require retaining or reproducing author, copyright holder, or
-        license notices when distributing the software. (Compare to,
-        for example, BSD 2-Clause "Simplified" License which does have
-        such requirements.)
-
-    If you have questions, don't hesitate to ask for more information.
-    The contact information is in the README file.
 

COPYING.0BSD

@@ -1,11 +0,0 @@
-Permission to use, copy, modify, and/or distribute this
-software for any purpose with or without fee is hereby granted.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
-WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
-THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
-CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
-CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

COPYING.CC-BY-SA-4.0

@@ -1,427 +0,0 @@
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INSTALL

@@ -143,37 +143,43 @@ XZ Utils Installation
 
 1.2.7. Windows
 
-    The "windows" directory contains instructions for a few types
+    If it is enough to build liblzma (no command line tools):
-    of builds:
 
-      - INSTALL-MinGW-w64_with_CMake.txt
+      - There is CMake support. It should be good enough to build
-                Simple instructions how to build XZ Utils natively on
+        static liblzma or liblzma.dll with Visual Studio. The CMake
-                Windows using only CMake and a prebuilt toolchain
+        support may work with MinGW or MinGW-w64. Read the comment
-                (GCC + MinGW-w64 or Clang/LLVM + MinGW-w64).
+        in the beginning of CMakeLists.txt before running CMake!
 
-      - INSTALL-MinGW-w64_with_Autotools.txt
+      - There are Visual Studio project files under the "windows"
-                Native build under MSYS2 or cross-compilation from
+        directory. See windows/INSTALL-MSVC.txt. In the future the
-                GNU/Linux using a bash script that creates a .zip
+        project files will be removed when CMake support is good
-                and .7z archives of the binaries and documentation.
+        enough. Thus, please test the CMake version and help fix
-                The related file README-Windows.txt is for the
+        possible issues.
-                resulting binary package.
 
-      - INSTALL-MSVC.txt
+    To build also the command line tools:
-                Building with MSVC / Visual Studio and CMake.
 
-      - liblzma-crt-mixing.txt
+      - MinGW-w64 + MSYS (32-bit and 64-bit x86): This is used
-                Documentation what to take into account as a programmer
+        for building the official binary packages for Windows.
-                if liblzma.dll and the application don't use the same
+        There is windows/build.bash to ease packaging XZ Utils with
-                CRT (MSVCRT or UCRT).
+        MinGW(-w64) + MSYS into a redistributable .zip or .7z file.
+        See windows/INSTALL-MinGW.txt for more information.
 
-    Other choices:
+      - MinGW + MSYS (32-bit x86): I haven't recently tested this.
 
-      - Cygwin: https://cygwin.com/
+      - Cygwin 1.7.35 and later: NOTE that using XZ Utils >= 5.2.0
-        Building on Cygwin can be done like on many POSIX operating
+        under Cygwin older than 1.7.35 can lead to DATA LOSS! If
-        systems. XZ Utils >= 5.2.0 isn't compatible with Cygwin older
+        you must use an old Cygwin version, stick to XZ Utils 5.0.x
-        than 1.7.35 (data loss!). 1.7.35 was released on 2015-03-04.
+        which is safe under older Cygwin versions. You can check
+        the Cygwin version with the command "cygcheck -V".
 
-      - MSYS2: https://www.msys2.org/
+    It may be possible to build liblzma with other toolchains too, but
+    that will probably require writing a separate makefile. Building
+    the command line tools with non-GNU toolchains will be harder than
+    building only liblzma.
+
+    Even if liblzma is built with MinGW(-w64), the resulting DLL can
+    be used by other compilers and linkers, including MSVC. See
+    windows/README-Windows.txt for details.
 
 
 1.2.8. DOS
@@ -353,20 +359,20 @@ XZ Utils Installation
                 with --docdir=DIR.
 
     --disable-assembler
-                This disables CRC32 and CRC64 assembly code on
+                liblzma includes some assembler optimizations. Currently
-                32-bit x86. This option currently does nothing
+                there is only assembler code for CRC32 and CRC64 for
-                on other architectures (not even on x86-64).
+                32-bit x86.
 
-                The 32-bit x86 assembly is position-independent code
+                All the assembler code in liblzma is position-independent
-                which is suitable for use in shared libraries and
+                code, which is suitable for use in shared libraries and
-                position-independent executables. It uses only i386
+                position-independent executables. So far only i386
-                instructions but the code is optimized for i686 class
+                instructions are used, but the code is optimized for i686
-                CPUs. If you are compiling liblzma exclusively for
+                class CPUs. If you are compiling liblzma exclusively for
                 pre-i686 systems, you may want to disable the assembler
                 code.
 
     --disable-clmul-crc
-                Disable the use of carryless multiplication for CRC
+                Disable the use carryless multiplication for CRC
                 calculation even if compiler support for it is detected.
                 The code uses runtime detection of SSSE3, SSE4.1, and
                 CLMUL instructions on x86. On 32-bit x86 this currently
@@ -377,16 +383,6 @@ XZ Utils Installation
                 required extensions (-msse4.1 -mpclmul) then runtime
                 detection isn't used and the generic code is omitted.
 
-    --disable-arm64-crc32
-                Disable the use of the ARM64 CRC32 instruction extension
-                even if compiler support for it is detected. The code will
-                detect support for the instruction at runtime.
-
-                If using compiler options that unconditionally allow the
-                required extensions (-march=armv8-a+crc or -march=armv8.1-a
-                and later) then runtime detection isn't used and the
-                generic code is omitted.
-
     --enable-unaligned-access
                 Allow liblzma to use unaligned memory access for 16-bit,
                 32-bit, and 64-bit loads and stores. This should be
@@ -396,43 +392,8 @@ XZ Utils Installation
                 slow. This option shouldn't be used on systems that
                 rely on such emulation.
 
-                Unaligned access is enabled by default on these:
+                Unaligned access is enabled by default on x86, x86-64,
-                  - 32-bit x86
+                big endian PowerPC, some ARM, and some ARM64 systems.
-                  - 64-bit x86-64
-                  - 32-bit big endian PowerPC
-                  - 64-bit big endian PowerPC
-                  - 64-bit little endian PowerPC
-                  - some RISC-V [1]
-                  - some 32-bit ARM [2]
-                  - some 64-bit ARM64 [2] (NOTE: Autodetection bug
-                    if using GCC -mstrict-align, see below.)
-
-                [1] Unaligned access is enabled by default if
-                    configure sees that the C compiler
-                    #defines __riscv_misaligned_fast.
-
-                [2] Unaligned access is enabled by default if
-                    configure sees that the C compiler
-                    #defines __ARM_FEATURE_UNALIGNED:
-
-                      - ARMv7 + GCC or Clang: It works. The options
-                        -munaligned-access and -mno-unaligned-access
-                        affect this macro correctly.
-
-                      - ARM64 + Clang: It works. The options
-                        -munaligned-access, -mno-unaligned-access,
-                        and -mstrict-align affect this macro correctly.
-                        Clang >= 17 supports -mno-strict-align too.
-
-                      - ARM64 + GCC: It partially works. The macro
-                        is always #defined by GCC versions at least
-                        up to 13.2, even when using -mstrict-align.
-                        If building for strict-align ARM64, the
-                        configure option --disable-unaligned-access
-                        should be used if using a GCC version that has
-                        this issue because otherwise the performance
-                        may be degraded. It likely won't crash due to
-                        how unaligned access is done in the C code.
 
     --enable-unsafe-type-punning
                 This enables use of code like
@@ -499,14 +460,14 @@ XZ Utils Installation
                                 too. This is the default for 32-bit x86
                                 Windows builds. Unless the compiler
                                 supports __attribute__((__constructor__)),
-                                the 'win95' threading is incompatible with
+                                the `win95' threading is incompatible with
                                 --enable-small.
 
                         vista   Use Windows Vista compatible threads. The
                                 resulting binaries won't run on Windows XP
                                 or older. This is the default for Windows
                                 excluding 32-bit x86 builds (that is, on
-                                x86-64 the default is 'vista').
+                                x86-64 the default is `vista').
 
                         no      Disable threading support. This is the
                                 same as using --disable-threads.
@@ -518,25 +479,14 @@ XZ Utils Installation
                                 calls any liblzma functions from more than
                                 one thread, something bad may happen.
 
-    --enable-ifunc
-                Use __attribute__((__ifunc__())) in liblzma. This is
-                enabled by default on GNU/Linux and FreeBSD.
-
-                The ifunc attribute is incompatible with
-                -fsanitize=address. --disable-ifunc must be used
-                if any -fsanitize= option is specified in CFLAGS.
-
     --enable-sandbox=METHOD
-                There is limited sandboxing support in the xz and xzdec
+                There is limited sandboxing support in the xz tool. If
-                tools. If built with sandbox support, xz uses it
+                built with sandbox support, it's used automatically when
-                automatically when (de)compressing exactly one file to
+                (de)compressing exactly one file to standard output and
-                standard output when the options --files or --files0 aren't
+                the options --files or --files0 weren't used. This is a
-                used. This is a common use case, for example,
+                common use case, for example, (de)compressing .tar.xz
-                (de)compressing .tar.xz files via GNU tar. The sandbox is
+                files via GNU tar. The sandbox is also used for
-                also used for single-file 'xz --test' or 'xz --list'.
+                single-file `xz --test' or `xz --list'.
-                xzdec always uses the sandbox, except when more than one
-                file are decompressed. In this case it will enable the
-                sandbox for the last file that is decompressed.
 
                 Supported METHODs:
 
@@ -548,7 +498,7 @@ XZ Utils Installation
                         no      Disable sandboxing support.
 
                         capsicum
-                                Use Capsicum (FreeBSD >= 10.2) for
+                                Use Capsicum (FreeBSD >= 10) for
                                 sandboxing. If no Capsicum support
                                 is found, configure will give an error.
 
@@ -556,50 +506,10 @@ XZ Utils Installation
                                 sandboxing. If pledge(2) isn't found,
                                 configure will give an error.
 
-                        landlock
+    --enable-symbol-versions
-                                Use Landlock (Linux >= 5.13) for
+                Use symbol versioning for liblzma. This is enabled by
-                                sandboxing. If no Landlock support
+                default on GNU/Linux, other GNU-based systems, and
-                                is found, configure will give an error.
+                FreeBSD.
-
-    --enable-symbol-versions[=VARIANT]
-                Use symbol versioning for liblzma shared library.
-                This is enabled by default on GNU/Linux (glibc only),
-                other GNU-based systems, and FreeBSD.
-
-                Symbol versioning is never used for static liblzma. This
-                option is ignored when not building a shared library.
-
-                Supported VARIANTs:
-
-                        no      Disable symbol versioning. This is the
-                                same as using --disable-symbol-versions.
-
-                        auto    Autodetect between "no", "linux",
-                                and "generic".
-
-                        yes     Autodetect between "linux" and
-                                "generic". This forces symbol
-                                versioning to be used when
-                                building a shared library.
-
-                        generic Generic version is the default for
-                                FreeBSD and GNU/Linux on MicroBlaze.
-
-                                This is also used on GNU/Linux when
-                                building with NVIDIA HPC Compiler
-                                because the compiler doesn't support
-                                the features required for the "linux"
-                                variant below.
-
-                        linux   Special version for GNU/Linux (glibc
-                                only). This adds a few extra symbol
-                                versions for compatibility with binaries
-                                that have been linked against a liblzma
-                                version that has been patched with
-                                "xz-5.2.2-compat-libs.patch" from
-                                RHEL/CentOS 7. That patch was used
-                                by some build tools outside of
-                                RHEL/CentOS 7 too.
 
     --enable-debug
                 This enables the assert() macro and possibly some other

Makefile.am

@@ -1,5 +1,9 @@
-## SPDX-License-Identifier: 0BSD
+##
 ## Author: Lasse Collin
+##
+## This file has been put into the public domain.
+## You can do whatever you want with this file.
+##
 
 # Use -n to prevent gzip from adding a timestamp to the .gz headers.
 GZIP_ENV = -9n
@@ -17,11 +21,11 @@ if COND_DOC
 dist_doc_DATA = \
 	AUTHORS \
 	COPYING \
-	COPYING.0BSD \
 	COPYING.GPLv2 \
 	NEWS \
 	README \
 	THANKS \
+	TODO \
 	doc/faq.txt \
 	doc/history.txt \
 	doc/xz-file-format.txt \
@@ -34,9 +38,13 @@ dist_examples_DATA = \
 	doc/examples/02_decompress.c \
 	doc/examples/03_compress_custom.c \
 	doc/examples/04_compress_easy_mt.c \
-	doc/examples/11_file_info.c \
 	doc/examples/Makefile
 
+examplesolddir = $(docdir)/examples_old
+dist_examplesold_DATA = \
+	doc/examples_old/xz_pipe_comp.c \
+	doc/examples_old/xz_pipe_decomp.c
+
 # Install the Doxygen generated documentation if they were built.
 install-data-local:
 	if test -d "$(srcdir)/doc/api" ; then \
@@ -51,25 +59,22 @@ uninstall-local:
 endif
 
 EXTRA_DIST = \
-	cmake \
+	po4a \
+	extra \
 	dos \
 	doxygen \
-	extra \
-	po4a \
 	windows \
+	macosx \
+	cmake \
 	CMakeLists.txt \
-	COPYING.CC-BY-SA-4.0 \
+	autogen.sh \
 	COPYING.GPLv2 \
 	COPYING.GPLv3 \
 	COPYING.LGPLv2.1 \
 	INSTALL.generic \
 	PACKAGERS \
-	TODO \
-	autogen.sh \
 	build-aux/manconv.sh \
-	build-aux/version.sh \
+	build-aux/version.sh
-	doc/xz-logo.png \
-	po/xz.pot-header
 
 ACLOCAL_AMFLAGS = -I m4
 
@@ -88,7 +93,7 @@ manfiles = \
 dist-hook:
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
 		( cd "$(srcdir)" && git log --date=iso --stat \
-			b69da6d4bb6bb11fc0cf066920791990d2b22a06^..HEAD ) \
+			6060f7dc76fd6c2a8a1f8e85d0e4d86bb78273e6^..HEAD ) \
 			> "$(distdir)/ChangeLog"; \
 	fi
 	if type groff > /dev/null 2>&1 && type ps2pdf > /dev/null 2>&1; then \

NEWS

@@ -2,319 +2,6 @@
 XZ Utils Release Notes
 ======================
 
-5.6.1 (2024-03-09)
-
-    * liblzma: Fixed two bugs relating to GNU indirect function (IFUNC)
-      with GCC. The more serious bug caused a program linked with
-      liblzma to crash on start up if the flag -fprofile-generate was
-      used to build liblzma. The second bug caused liblzma to falsely
-      report an invalid write to Valgrind when loading liblzma.
-
-    * xz: Changed the messages for thread reduction due to memory
-      constraints to only appear under the highest verbosity level.
-
-    * Build:
-
-        - Fixed a build issue when the header file <linux/landlock.h>
-          was present on the system but the Landlock system calls were
-          not defined in <sys/syscall.h>.
-
-        - The CMake build now warns and disables NLS if both gettext
-          tools and pre-created .gmo files are missing. Previously,
-          this caused the CMake build to fail.
-
-    * Minor improvements to man pages.
-
-    * Minor improvements to tests.
-
-
-5.6.0 (2024-02-24)
-
-    This bumps the minor version of liblzma because new features were
-    added. The API and ABI are still backward compatible with liblzma
-    5.4.x and 5.2.x and 5.0.x.
-
-    NOTE: As described in the NEWS for 5.5.2beta, the core components
-    are now under the BSD Zero Clause License (0BSD).
-
-    Since 5.5.2beta:
-
-    * liblzma:
-
-        - Disabled the branchless C variant in the LZMA decoder based
-          on the benchmark results from the community.
-
-        - Disabled x86-64 inline assembly on x32 to fix the build.
-
-    * Sandboxing support in xz:
-
-        - Landlock is now used even when xz needs to create files.
-          In this case the sandbox has to be more permissive than
-          when no files need to be created. A similar thing was
-          already in use with pledge(2) since 5.3.4alpha.
-
-        - Landlock and pledge(2) are now stricter when reading from
-          more than one input file and only writing to standard output.
-
-        - Added support for Landlock ABI version 4.
-
-    * CMake:
-
-        - Default to -O2 instead of -O3 with CMAKE_BUILD_TYPE=Release.
-          -O3 is not useful for speed and makes the code larger.
-
-        - Now builds lzmainfo and lzmadec.
-
-        - xzdiff, xzgrep, xzless, xzmore, and their symlinks are now
-          installed. The scripts are also tested during "make test".
-
-        - Added translation support for xz, lzmainfo, and the
-          man pages.
-
-        - Applied the symbol versioning workaround for MicroBlaze that
-          is used in the Autotools build.
-
-        - The general XZ Utils and liblzma API documentation is now
-          installed.
-
-        - The CMake component names were changed a little and several
-          were added. liblzma_Runtime and liblzma_Development are
-          unchanged.
-
-        - Minimum required CMake version is now 3.14. However,
-          translation support is disabled with CMake versions
-          older than 3.20.
-
-        - The CMake-based build is now close to feature parity with the
-          Autotools-based build. Most importantly a few tests aren't
-          run yet. Testing the CMake-based build on different operating
-          systems would be welcome now. See the comment at the top of
-          CMakeLists.txt.
-
-    * Fixed a bug in the Autotools feature test for ARM64 CRC32
-      instruction support for old versions of Clang. This did not
-      affect the CMake build.
-
-    * Windows:
-
-        - The build instructions in INSTALL and windows/INSTALL*.txt
-          were revised completely.
-
-        - windows/build-with-cmake.bat along with the instructions
-          in windows/INSTALL-MinGW-w64_with_CMake.txt should make
-          it very easy to build liblzma.dll and xz.exe on Windows
-          using CMake and MinGW-w64 with either GCC or Clang/LLVM.
-
-        - windows/build.bash was updated. It now works on MSYS2 and
-          on GNU/Linux (cross-compiling) to create a .zip and .7z
-          package for 32-bit and 64-bit x86 using GCC + MinGW-w64.
-
-    * The TODO file is no longer installed as part of the
-      documentation. The file is out of date and does not reflect
-      the actual tasks that will be completed in the future.
-
-    * Translations:
-
-        - Translated lzmainfo man pages are now installed. These
-          had been forgotten in earlier versions.
-
-        - Updated Croatian, Esperanto, German, Hungarian, Korean,
-          Polish, Romanian, Spanish, Swedish, Vietnamese, and Ukrainian
-          translations.
-
-        - Updated German, Korean, Romanian, and Ukrainian man page
-          translations.
-
-    * Added a few tests.
-
-    Summary of new features added in the 5.5.x development releases:
-
-    * liblzma:
-
-        - LZMA decoder: Speed optimizations to the C code and
-          added GCC & Clang compatible inline assembly for x86-64.
-
-        - Added lzma_mt_block_size() to recommend a Block size for
-          multithreaded encoding.
-
-        - Added CLMUL-based CRC32 on x86-64 and E2K with runtime
-          processor detection. Similar to CRC64, on 32-bit x86 it
-          isn't available unless --disable-assembler is used.
-
-        - Optimized the CRC32 calculation on ARM64 platforms using the
-          CRC32 instructions. Runtime detection for the instruction is
-          used on GNU/Linux, FreeBSD, Windows, and macOS. If the
-          compiler flags indicate unconditional CRC32 instruction
-          support (+crc) then the generic version is not built.
-
-        - Added definitions of mask values like
-          LZMA_INDEX_CHECK_MASK_CRC32 to <lzma/index.h>.
-
-    * xz:
-
-        - Multithreaded mode is now the default. This improves
-          compression speed and creates .xz files that can be
-          decompressed in multithreaded mode. The downsides are
-          increased memory usage and slightly worse compression ratio.
-
-        - Added a new command line option --filters to set the filter
-          chain using the liblzma filter string syntax.
-
-        - Added new command line options --filters1 ... --filters9 to
-          set additional filter chains using the liblzma filter string
-          syntax. The --block-list option now allows specifying filter
-          chains that were set using these new options.
-
-        - Ported the command line tools to Windows MSVC.
-          Visual Studio 2015 or later is required.
-
-    * Added lz4 support to xzdiff/xzcmp and xzgrep.
-
-
-5.5.2beta (2024-02-14)
-
-    * Licensing change: The core components are now under the
-      BSD Zero Clause License (0BSD). In XZ Utils 5.4.6 and older
-      and 5.5.1alpha these components are in the public domain and
-      obviously remain so; the change affects the new releases only.
-
-      0BSD is an extremely permissive license which doesn't require
-      retaining or reproducing copyright or license notices when
-      distributing the code, thus in practice there is extremely
-      little difference to public domain.
-
-    * liblzma
-
-        - Significant speed optimizations to the LZMA decoder were
-          made. There are now three variants that can be chosen at
-          build time:
-
-            * Basic C version: This is a few percent faster than
-              5.4.x due to some new optimizations.
-
-            * Branchless C: This is currently the default on platforms
-              for which there is no assembly code. This should be a few
-              percent faster than the basic C version.
-
-            * x86-64 inline assembly. This works with GCC and Clang.
-
-          The default choice can currently be overridden by setting
-          LZMA_RANGE_DECODER_CONFIG in CPPFLAGS: 0 means the basic
-          version and 3 means that branchless C version.
-
-        - Optimized the CRC32 calculation on ARM64 platforms using the
-          CRC32 instructions. The instructions are optional in ARMv8.0
-          and are required in ARMv8.1 and later. Runtime detection for
-          the instruction is used on GNU/Linux, FreeBSD, Windows, and
-          macOS. If the compiler flags indicate unconditional CRC32
-          instruction support (+crc) then the generic version is not
-          built.
-
-    * Added lz4 support to xzdiff/xzcmp and xzgrep.
-
-    * Man pages of xzdiff/xzcmp, xzgrep, and xzmore were rewritten
-      to simplify licensing of the man page translations.
-
-    * Translations:
-
-        - Updated Chinese (simplified), German, Korean, Polish,
-          Romanian, Spanish, Swedish, and Ukrainian translations.
-
-        - Updated German, Korean, Romanian, and Ukrainian man page
-          translations.
-
-    * Small improvements to the tests.
-
-    * Added doc/examples/11_file_info.c. It was added to the Git
-      repository in 2017 but forgotten to be added into distribution
-      tarballs.
-
-    * Removed doc/examples_old. These were from 2012.
-
-    * Removed the macos/build.sh script. It had not been updated
-      since 2013.
-
-
-5.5.1alpha (2024-01-26)
-
-    * Added a new filter for RISC-V binaries. The filter can be used
-      for 32-bit and 64-bit binaries with either little or big
-      endianness. In liblzma, the Filter ID is LZMA_FILTER_RISCV (0x0B)
-      and the xz option is --riscv. liblzma filter string syntax
-      recognizes this filter as "riscv".
-
-    * liblzma:
-
-        - Added lzma_mt_block_size() to recommend a Block size for
-          multithreaded encoding
-
-        - Added CLMUL-based CRC32 on x86-64 and E2K with runtime
-          processor detection. Similar to CRC64, on 32-bit x86 it
-          isn't available unless --disable-assembler is used.
-
-        - Implemented GNU indirect function (IFUNC) as a runtime
-          function dispatching method for CRC32 and CRC64 fast
-          implementations on x86. Only GNU/Linux (glibc) and FreeBSD
-          builds will use IFUNC, unless --enable-ifunc is specified to
-          configure.
-
-        - Added definitions of mask values like
-          LZMA_INDEX_CHECK_MASK_CRC32 to <lzma/index.h>.
-
-        - The XZ logo is now included in the Doxygen generated
-          documentation. It is licensed under Creative Commons
-          Attribution-ShareAlike 4.0.
-
-    * xz:
-
-        - Multithreaded mode is now the default. This improves
-          compression speed and creates .xz files that can be
-          decompressed multithreaded at the cost of increased memory
-          usage and slightly worse compression ratio.
-
-        - Added new command line option --filters to set the filter
-          chain using liblzma filter string syntax.
-
-        - Added new command line options --filters1 ... --filters9 to
-          set additional filter chains using liblzma filter string
-          syntax. The --block-list option now allows specifying filter
-          chains that were set using these new options.
-
-        - Added support for Linux Landlock as a sandboxing method.
-
-        - xzdec now supports pledge(2), Capsicum, and Linux Landlock as
-          sandboxing methods.
-
-        - Progress indicator time stats remain accurate after pausing
-          xz with SIGTSTP.
-
-        - Ported xz and xzdec to Windows MSVC. Visual Studio 2015 or
-          later is required.
-
-    * CMake Build:
-
-        - Supports pledge(2), Capsicum, and Linux Landlock sandboxing
-          methods.
-
-        - Replacement functions for getopt_long() are used on platforms
-          that do not have it.
-
-    * Enabled unaligned access by default on PowerPC64LE and on RISC-V
-      targets that define __riscv_misaligned_fast.
-
-    * Tests:
-
-        - Added two new fuzz targets to OSS-Fuzz.
-
-        - Implemented Continuous Integration (CI) testing using
-          GitHub Actions.
-
-    * Changed quoting style from `...' to '...' in all messages,
-      scripts, and documentation.
-
-    * Added basic Codespell support to help catch typo errors.
-
-
 5.4.6 (2024-01-26)
 
     * Fixed a bug involving internal function pointers in liblzma not
@@ -337,7 +24,7 @@ XZ Utils Release Notes
     * Added a new test.
 
 
-5.4.5 (2023-11-31)
+5.4.5 (2023-11-01)
 
     * liblzma:
 
@@ -1139,47 +826,6 @@ XZ Utils Release Notes
       (FreeBSD >= 10).
 
 
-5.2.12 (2023-05-04)
-
-    * Fixed a build system bug that prevented building liblzma as a
-      shared library when configured with --disable-threads. This bug
-      affected releases 5.2.6 to 5.2.11 and 5.4.0 to 5.4.2.
-
-    * Include <intrin.h> for Windows intrinsic functions where they are
-      needed. This fixed a bug that prevented building liblzma using
-      clang-cl on Windows.
-
-    * Minor update to the Croatian translation. The small change
-      applies to a string in both 5.2 and 5.4 branches.
-
-
-5.2.11 (2023-03-18)
-
-    * Removed all possible cases of null pointer + 0. It is undefined
-      behavior in C99 and C17. This was detected by a sanitizer and had
-      not caused any known issues.
-
-    * Build systems:
-
-        - Added a workaround for building with GCC on MicroBlaze Linux.
-          GCC 12 on MicroBlaze doesn't support the __symver__ attribute
-          even though __has_attribute(__symver__) returns true. The
-          build is now done without the extra RHEL/CentOS 7 symbols
-          that were added in XZ Utils 5.2.7. The workaround only
-          applies to the Autotools build (not CMake).
-
-        - CMake: Ensure that the C compiler language is set to C99 or
-          a newer standard.
-
-        - CMake changes from XZ Utils 5.4.1:
-
-            * Added a workaround for a build failure with
-              windres from GNU binutils.
-
-            * Included the Windows resource files in the xz
-              and xzdec build rules.
-
-
 5.2.10 (2022-12-13)
 
     * xz: Don't modify argv[] when parsing the --memlimit* and

PACKAGERS

@@ -124,15 +124,14 @@ Information to packagers of XZ Utils
 
     If the package manager supports a license field, you probably should
     put GPLv2+ there (GNU GPL v2 or later). The interesting parts of
-    XZ Utils are under the BSD Zero Clause License (0BSD), but some less
+    XZ Utils are in the public domain, but some less important files
-    important files ending up into the binary package are under GPLv2+.
+    ending up into the binary package are under GPLv2+. So it is simplest
-    So it is simplest to just say GPLv2+ if you cannot specify
+    to just say GPLv2+ if you cannot specify "public domain and GPLv2+".
-    "BSD0 and GPLv2+".
 
     If you split XZ Utils into multiple packages as described earlier
     in this file, liblzma and liblzma-dev packages will contain only
-    0BSD-licensed code from XZ Utils (compiler or linker may add some
+    public domain code (from XZ Utils at least; compiler or linker may
-    third-party code which may have other licenses).
+    add some third-party code, which may be copyrighted).
 
 
 4. configure options

README

@@ -69,18 +69,15 @@ XZ Utils
 
     README              This file
 
-    INSTALL.generic       Generic install instructions for those not
+    INSTALL.generic     Generic install instructions for those not familiar
-                          familiar with packages using GNU Autotools
+                        with packages using GNU Autotools
     INSTALL             Installation instructions specific to XZ Utils
     PACKAGERS           Information to packagers of XZ Utils
 
     COPYING             XZ Utils copyright and license information
-    COPYING.0BSD          BSD Zero Clause License
     COPYING.GPLv2       GNU General Public License version 2
     COPYING.GPLv3       GNU General Public License version 3
     COPYING.LGPLv2.1    GNU Lesser General Public License version 2.1
-    COPYING.CC-BY-SA-4.0  Creative Commons Attribution-ShareAlike 4.0
-                          International Public License
 
     AUTHORS             The main authors of XZ Utils
     THANKS              Incomplete list of people who have helped making

THANKS

@@ -52,11 +52,9 @@ has been important. :-) In alphabetical order:
   - Bjarni Ingi Gislason
   - John Paul Adrian Glaubitz
   - Bill Glessner
-  - Matthew Good
   - Michał Górny
   - Jason Gorski
   - Juan Manuel Guerrero
-  - Gabriela Gutierrez
   - Diederik de Haas
   - Joachim Henke
   - Christian Hesse
@@ -65,7 +63,6 @@ has been important. :-) In alphabetical order:
   - Nicholas Jackson
   - Sam James
   - Hajin Jang
-  - Hans Jansen
   - Jouk Jansen
   - Jun I Jin
   - Kiyoshi Kanazawa
@@ -76,7 +73,6 @@ has been important. :-) In alphabetical order:
   - Richard Koch
   - Anton Kochkov
   - Ville Koskinen
-  - Sergey Kosukhin
   - Marcin Kowalczyk
   - Jan Kratochvil
   - Christian Kujau
@@ -84,7 +80,6 @@ has been important. :-) In alphabetical order:
   - Ilya Kurdyukov
   - Peter Lawler
   - James M Leddy
-  - Kelvin Lee
   - Vincent Lefevre
   - Hin-Tak Leung
   - Andraž 'ruskie' Levstik
@@ -95,7 +90,6 @@ has been important. :-) In alphabetical order:
   - Lorenzo De Liso
   - H.J. Lu
   - Bela Lubkin
-  - Chenxi Mao
   - Gregory Margo
   - Julien Marrec
   - Ed Maste
@@ -153,11 +147,10 @@ has been important. :-) In alphabetical order:
   - Dan Stromberg
   - Jia Tan
   - Vincent Torri
-  - Alexey Tourbin
   - Paul Townsend
   - Mohammed Adnène Trojette
+  - Alexey Tourbin
   - Taiki Tsunekawa
-  - Maksym Vatsyk
   - Loganaden Velvindron
   - Patrick J. Volkerding
   - Martin Väth
@@ -172,7 +165,6 @@ has been important. :-) In alphabetical order:
   - Charles Wilson
   - Lars Wirzenius
   - Pilorz Wojciech
-  - Chien Wong
   - Ryan Young
   - Andreas Zieringer
 

TODO

@@ -24,6 +24,10 @@ Known bugs
 
     tuklib_exit() doesn't block signals => EINTR is possible.
 
+    SIGTSTP is not handled. If xz is stopped, the estimated remaining
+    time and calculated (de)compression speed won't make sense in the
+    progress indicator (xz --verbose).
+
     If liblzma has created threads and fork() gets called, liblzma
     code will break in the child process unless it calls exec() and
     doesn't touch liblzma.

autogen.sh

@@ -1,10 +1,12 @@
 #!/bin/sh
-# SPDX-License-Identifier: 0BSD
 
 ###############################################################################
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 set -e -x

build-aux/ci_build.sh

@@ -1,287 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# Script meant to be used for Continuous Integration automation for POSIX
-# systems. On GitHub, this is used by Ubuntu and MacOS builds.
-#
-#############################################################################
-#
-# Author: Jia Tan
-#
-#############################################################################
-
-set -e
-
-USAGE="Usage: $0
-  -a [autogen flags]
-  -b [autotools|cmake]
-  -c [crc32|crc64|sha256]
-  -d [encoders|decoders|bcj|delta|threads|shared|nls|small|ifunc|clmul|sandbox]
-  -f [CFLAGS]
-  -l [destdir]
-  -m [compiler]
-  -n [ARTIFACTS_DIR_NAME]
-  -p [all|build|test]
-  -s [srcdir]"
-
-# Absolute path of script directory
-ABS_DIR=$(cd -- "$(dirname -- "$0")" && pwd)
-
-# Default CLI option values
-AUTOGEN_FLAGS=""
-BUILD_SYSTEM="autotools"
-CHECK_TYPE="crc32,crc64,sha256"
-BCJ="y"
-DELTA="y"
-ENCODERS="y"
-DECODERS="y"
-THREADS="y"
-SHARED="y"
-NATIVE_LANG_SUPPORT="y"
-SMALL="n"
-IFUNC="y"
-CLMUL="y"
-SANDBOX="y"
-SRC_DIR="$ABS_DIR/../"
-DEST_DIR="$SRC_DIR/../xz_build"
-PHASE="all"
-ARTIFACTS_DIR_NAME="output"
-
-
-###################
-# Parse arguments #
-###################
-
-while getopts a:b:c:d:l:m:n:s:p:f:h opt; do
-	# b option can have either value "autotools" OR "cmake"
-	case ${opt} in
-	h)
-		echo "$USAGE"
-		exit 0
-	;;
-	a)
-		AUTOGEN_FLAGS="$OPTARG"
-	;;
-	b)
-		case "$OPTARG" in
-			autotools) ;;
-			cmake) ;;
-			*) echo "Invalid build system: $OPTARG"; exit 1;;
-		esac
-		BUILD_SYSTEM="$OPTARG"
-	;;
-	c) CHECK_TYPE="$OPTARG"
-	;;
-	# d options can be a comma separated list of things to disable at
-	# configure time
-	d)
-	for disable_arg in $(echo "$OPTARG" | sed "s/,/ /g"); do
-		case "$disable_arg" in
-		encoders) ENCODERS="n" ;;
-		decoders) DECODERS="n" ;;
-		bcj) BCJ="n" ;;
-		delta) DELTA="n" ;;
-		threads) THREADS="n" ;;
-		shared) SHARED="n";;
-		nls) NATIVE_LANG_SUPPORT="n";;
-		small) SMALL="y";;
-		ifunc) IFUNC="n";;
-		clmul) CLMUL="n";;
-		sandbox) SANDBOX="n";;
-		*) echo "Invalid disable value: $disable_arg"; exit 1 ;;
-		esac
-	done
-	;;
-	l) DEST_DIR="$OPTARG"
-	;;
-	m)
-		CC="$OPTARG"
-		export CC
-	;;
-	n) ARTIFACTS_DIR_NAME="$OPTARG"
-	;;
-	s) SRC_DIR="$OPTARG"
-	;;
-	p) PHASE="$OPTARG"
-	;;
-	f)
-		CFLAGS="$OPTARG"
-		export CFLAGS
-	;;
-	esac
-done
-
-
-####################
-# Helper Functions #
-####################
-
-# These two functions essentially implement the ternary "?" operator.
-add_extra_option() {
-	# First argument is option value ("y" or "n")
-	# Second argument is option to set if "y"
-	# Third argument is option to set if "n"
-	if [ "$1" = "y" ]
-	then
-		EXTRA_OPTIONS="$EXTRA_OPTIONS $2"
-	else
-		EXTRA_OPTIONS="$EXTRA_OPTIONS $3"
-	fi
-}
-
-
-add_to_filter_list() {
-	# First argument is option value ("y" or "n")
-	# Second argument is option to set if "y"
-	if [ "$1" = "y" ]
-	then
-		FILTER_LIST="$FILTER_LIST$2"
-	fi
-}
-
-
-###############
-# Build Phase #
-###############
-
-if [ "$PHASE" = "all" ] || [ "$PHASE" = "build" ]
-then
-	# Checksum options should be specified differently based on the
-	# build system. It must be calculated here since we won't know
-	# the build system used until all args have been parsed.
-	# Autotools - comma separated
-	# CMake - semi-colon separated
-	if [ "$BUILD_SYSTEM" = "autotools" ]
-	then
-		SEP=","
-	else
-		SEP=";"
-	fi
-
-	CHECK_TYPE_TEMP=""
-	for crc in $(echo "$CHECK_TYPE" | sed "s/,/ /g"); do
-			case "$crc" in
-			# Remove "crc32" from cmake build, if specified.
-			crc32)
-				if [ "$BUILD_SYSTEM" = "cmake" ]
-				then
-					continue
-				fi
-			;;
-			crc64) ;;
-			sha256) ;;
-			*) echo "Invalid check type: $crc"; exit 1 ;;
-			esac
-
-			CHECK_TYPE_TEMP="$CHECK_TYPE_TEMP$SEP$crc"
-	done
-
-	# Remove the first character from $CHECK_TYPE_TEMP since it will
-	# always be the delimiter.
-	CHECK_TYPE="${CHECK_TYPE_TEMP:1}"
-
-	FILTER_LIST="lzma1$SEP"lzma2
-
-	# Build based on arguments
-	mkdir -p "$DEST_DIR"
-
-	# Generate configure option values
-	EXTRA_OPTIONS=""
-
-	case $BUILD_SYSTEM in
-	autotools)
-		cd "$SRC_DIR"
-
-		# Run autogen.sh script if not already run
-		if [ ! -f configure ]
-		then
-			./autogen.sh "$AUTOGEN_FLAGS"
-		fi
-
-		cd "$DEST_DIR"
-
-		add_to_filter_list "$BCJ" ",x86,powerpc,ia64,arm,armthumb,arm64,sparc,riscv"
-		add_to_filter_list "$DELTA" ",delta"
-
-		add_extra_option "$ENCODERS" "--enable-encoders=$FILTER_LIST" "--disable-encoders"
-		add_extra_option "$DECODERS" "--enable-decoders=$FILTER_LIST" "--disable-decoders"
-		add_extra_option "$THREADS" "" "--disable-threads"
-		add_extra_option "$SHARED" "" "--disable-shared"
-		add_extra_option "$NATIVE_LANG_SUPPORT" "" "--disable-nls"
-		add_extra_option "$SMALL" "--enable-small" ""
-		add_extra_option "$IFUNC" "" "--disable-ifunc"
-		add_extra_option "$CLMUL" "" "--disable-clmul-crc"
-		add_extra_option "$SANDBOX" "" "--enable-sandbox=no"
-
-		# Run configure script
-		"$SRC_DIR"/configure --enable-werror --enable-checks="$CHECK_TYPE" $EXTRA_OPTIONS --config-cache
-
-		# Build the project
-		make
-	;;
-	cmake)
-		cd "$DEST_DIR"
-
-		add_to_filter_list "$BCJ" ";x86;powerpc;ia64;arm;armthumb;arm64;sparc;riscv"
-		add_to_filter_list "$DELTA" ";delta"
-
-		add_extra_option "$THREADS" "-DENABLE_THREADS=ON" "-DENABLE_THREADS=OFF"
-
-		# Disable MicroLZMA if encoders are not configured.
-		add_extra_option "$ENCODERS" "-DENCODERS=$FILTER_LIST" "-DENCODERS= -DMICROLZMA_ENCODER=OFF"
-
-		# Disable MicroLZMA and lzip decoders if decoders are not configured.
-		add_extra_option "$DECODERS" "-DDECODERS=$FILTER_LIST" "-DDECODERS= -DMICROLZMA_DECODER=OFF -DLZIP_DECODER=OFF"
-
-		# CMake disables the shared library by default.
-		add_extra_option "$SHARED" "-DBUILD_SHARED_LIBS=ON" ""
-
-		add_extra_option "$SMALL" "-DHAVE_SMALL=ON" ""
-
-		if test -n "$CC" ; then
-			EXTRA_OPTIONS="$EXTRA_OPTIONS -DCMAKE_C_COMPILER=$CC"
-		fi
-
-		# Remove old cache file to clear previous settings.
-		rm -f "CMakeCache.txt"
-		cmake "$SRC_DIR/CMakeLists.txt" -B "$DEST_DIR" $EXTRA_OPTIONS -DADDITIONAL_CHECK_TYPES="$CHECK_TYPE" -G "Unix Makefiles"
-		cmake --build "$DEST_DIR"
-	;;
-	esac
-fi
-
-
-##############
-# Test Phase #
-##############
-
-if [ "$PHASE" = "all" ] || [ "$PHASE" = "test" ]
-then
-	case $BUILD_SYSTEM in
-	autotools)
-		cd "$DEST_DIR"
-		# If the tests fail, copy the test logs into the artifacts folder
-		if make check
-		then
-			:
-		else
-			mkdir -p "$SRC_DIR/build-aux/artifacts/$ARTIFACTS_DIR_NAME"
-			cp ./tests/*.log "$SRC_DIR/build-aux/artifacts/$ARTIFACTS_DIR_NAME"
-			exit 1
-		fi
-	;;
-	cmake)
-		cd "$DEST_DIR"
-		if make test
-		then
-			:
-		else
-			mkdir -p "$SRC_DIR/build-aux/artifacts/$ARTIFACTS_DIR_NAME"
-			cp ./Testing/Temporary/*.log "$SRC_DIR/build-aux/artifacts/$ARTIFACTS_DIR_NAME"
-			exit 1
-		fi
-	;;
-	esac
-fi

build-aux/manconv.sh

@@ -1,6 +1,5 @@
 #!/bin/sh
-# SPDX-License-Identifier: 0BSD
+#
-
 ###############################################################################
 #
 # Wrapper for GNU groff to convert man pages to a few formats
@@ -18,6 +17,9 @@
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 FORMAT=$1

build-aux/version.sh

@@ -1,6 +1,5 @@
 #!/bin/sh
-# SPDX-License-Identifier: 0BSD
+#
-
 #############################################################################
 #
 # Get the version string from version.h and print it out without
@@ -10,6 +9,9 @@
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 sed -n 's/LZMA_VERSION_STABILITY_ALPHA/alpha/

cmake/remove-ordinals.cmake

@@ -1,5 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
 #############################################################################
 #
 # remove-ordinals.cmake
@@ -18,6 +16,9 @@
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 file(READ "${INPUT_FILE}" STR)

cmake/tuklib_common.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_common.cmake - common functions and macros for tuklib_*.cmake files
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 function(tuklib_add_definitions TARGET_OR_ALL DEFINITIONS)
     # DEFINITIONS may be an empty string/list but it's fine here. There is

cmake/tuklib_cpucores.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_cpucores.cmake - see tuklib_cpucores.m4 for description and comments
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckCSourceCompiles)

cmake/tuklib_integer.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_integer.cmake - see tuklib_integer.m4 for description and comments
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(TestBigEndian)
@@ -60,64 +59,25 @@ function(tuklib_integer TARGET_OR_ALL)
         endif()
     endif()
 
-    # Guess that unaligned access is fast on these archs:
+    # Unaligned access is fast on x86(-64), big endian PowerPC, and usually on
-    #   - 32/64-bit x86 / x86-64
+    # 32/64-bit ARM too. There are others too and ARM could be a false match.
-    #   - 32/64-bit big endian PowerPC
-    #   - 64-bit little endian PowerPC
-    #   - Some 32-bit ARM
-    #   - Some 64-bit ARM64 (AArch64)
-    #   - Some 32/64-bit RISC-V
     #
-    # CMake doesn't provide a standardized/normalized list of processor arch
+    # Guess the default value for the option.
-    # names. For example, x86-64 may be "x86_64" (Linux), "AMD64" (Windows),
+    # CMake's ability to give info about the target arch seems bad.
-    # or even "EM64T" (64-bit WinXP).
+    # The the same arch can have different name depending on the OS.
+    #
+    # FIXME: The regex is based on guessing, not on factual information!
+    #
+    # NOTE: Compared to the Autoconf test, this lacks the GCC/Clang test
+    #       on ARM and always assumes that unaligned is fast on ARM.
     set(FAST_UNALIGNED_GUESS OFF)
-    string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" PROCESSOR)
+    if(CMAKE_SYSTEM_PROCESSOR MATCHES
-
+       "[Xx3456]86|^[Xx]64|^[Aa][Mm][Dd]64|^[Aa][Rr][Mm]|^aarch|^powerpc|^ppc")
-    # There is no ^ in the first regex branch to allow "i" at the beginning
+        if(NOT WORDS_BIGENDIAN OR
-    # so it can match "i386" to "i786", and "x86_64".
+           NOT CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc|^ppc")
-    if(PROCESSOR MATCHES "[x34567]86|^x64|^amd64|^em64t")
-        set(FAST_UNALIGNED_GUESS ON)
-
-    elseif(PROCESSOR MATCHES "^powerpc|^ppc")
-        if(WORDS_BIGENDIAN OR PROCESSOR MATCHES "64")
-            set(FAST_UNALIGNED_GUESS ON)
-        endif()
-
-    elseif(PROCESSOR MATCHES "^arm|^aarch64|^riscv")
-        # On 32-bit and 64-bit ARM, GCC and Clang
-        # #define __ARM_FEATURE_UNALIGNED if
-        # unaligned access is supported.
-        #
-        # Exception: GCC at least up to 13.2.0
-        # defines it even when using -mstrict-align
-        # so in that case this autodetection goes wrong.
-        # Most of the time -mstrict-align isn't used so it
-        # shouldn't be a common problem in practice. See:
-        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
-        #
-        # RISC-V C API Specification says that if
-        # __riscv_misaligned_fast is defined then
-        # unaligned access is known to be fast.
-        #
-        # MSVC is handled as a special case: We assume that
-        # 32/64-bit ARM supports fast unaligned access.
-        # If MSVC gets RISC-V support then this will assume
-        # fast unaligned access on RISC-V too.
-        check_c_source_compiles("
-                #if !defined(__ARM_FEATURE_UNALIGNED) \
-                        && !defined(__riscv_misaligned_fast) \
-                        && !defined(_MSC_VER)
-                compile error
-                #endif
-                int main(void) { return 0; }
-            "
-            TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
-        if(TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
            set(FAST_UNALIGNED_GUESS ON)
         endif()
     endif()
-
     option(TUKLIB_FAST_UNALIGNED_ACCESS
            "Enable if the system supports *fast* unaligned memory access \
 with 16-bit, 32-bit, and 64-bit integers."

cmake/tuklib_large_file_support.cmake

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_large_file_support.cmake
 #
@@ -11,7 +8,9 @@
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckCSourceCompiles)

cmake/tuklib_mbstr.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_mbstr.cmake - see tuklib_mbstr.m4 for description and comments
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckSymbolExists)

cmake/tuklib_physmem.cmake

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_physmem.cmake - see tuklib_physmem.m4 for description and comments
 #
@@ -9,7 +6,9 @@
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckCSourceCompiles)

cmake/tuklib_progname.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_progname.cmake - see tuklib_progname.m4 for description and comments
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckSymbolExists)

configure.ac

@@ -1,12 +1,13 @@
 #                                               -*- Autoconf -*-
-# SPDX-License-Identifier: 0BSD
+# Process this file with autoconf to produce a configure script.
 
 ###############################################################################
 #
-# Process this file with autoconf to produce a configure script.
-#
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 # NOTE: Don't add useless checks. autoscan detects this and that, but don't
@@ -78,8 +79,8 @@ fi
 # Filters #
 ###########
 
-m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,arm64,sparc,riscv])dnl
+m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,arm64,sparc])dnl
-m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,arm64,sparc,riscv])
+m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,arm64,sparc])
 m4_define([LZ_FILTERS], [lzma1,lzma2])
 
 m4_foreach([NAME], [SUPPORTED_FILTERS],
@@ -309,7 +310,7 @@ case $enable_microlzma in
 		;;
 	*)
 		AC_MSG_RESULT([])
-		AC_MSG_ERROR([--enable-microlzma accepts only 'yes' or 'no'.])
+		AC_MSG_ERROR([--enable-microlzma accepts only `yes' or `no'.])
 		;;
 esac
 AM_CONDITIONAL(COND_MICROLZMA, test "x$enable_microlzma" = xyes)
@@ -363,7 +364,7 @@ case $enable_assembler in
 		;;
 	*)
 		AC_MSG_RESULT([])
-		AC_MSG_ERROR([--enable-assembler accepts only 'yes', 'no', or 'x86' (32-bit).])
+		AC_MSG_ERROR([--enable-assembler accepts only `yes', `no', or `x86' (32-bit).])
 		;;
 esac
 AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86)
@@ -379,16 +380,6 @@ AC_ARG_ENABLE([clmul-crc], AS_HELP_STRING([--disable-clmul-crc],
 	[], [enable_clmul_crc=yes])
 
 
-############################
-# ARM64 CRC32 Instructions #
-############################
-
-AC_ARG_ENABLE([arm64-crc32], AS_HELP_STRING([--disable-arm64-crc32],
-		[Do not use ARM64 CRC32 instructions even if support for it
-		is detected.]),
-	[], [enable_arm64_crc32=yes])
-
-
 #####################
 # Size optimization #
 #####################
@@ -402,7 +393,7 @@ if test "x$enable_small" = xyes; then
 	AC_DEFINE([HAVE_SMALL], [1], [Define to 1 if optimizing for size.])
 elif test "x$enable_small" != xno; then
 	AC_MSG_RESULT([])
-	AC_MSG_ERROR([--enable-small accepts only 'yes' or 'no'])
+	AC_MSG_ERROR([--enable-small accepts only `yes' or `no'])
 fi
 AC_MSG_RESULT([$enable_small])
 AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes)
@@ -414,8 +405,8 @@ AM_CONDITIONAL(COND_SMALL, test "x$enable_small" = xyes)
 
 AC_MSG_CHECKING([if threading support is wanted])
 AC_ARG_ENABLE([threads], AS_HELP_STRING([--enable-threads=METHOD],
-		[Supported METHODS are 'yes', 'no', 'posix', 'win95', and
+		[Supported METHODS are `yes', `no', `posix', `win95', and
-		'vista'. The default is 'yes'. Using 'no' together with
+		`vista'. The default is `yes'. Using `no' together with
 		--enable-small makes liblzma thread unsafe.]),
 	[], [enable_threads=yes])
 
@@ -442,7 +433,7 @@ case $enable_threads in
 		;;
 	*)
 		AC_MSG_RESULT([])
-		AC_MSG_ERROR([--enable-threads only accepts 'yes', 'no', 'posix', 'win95', or 'vista'])
+		AC_MSG_ERROR([--enable-threads only accepts `yes', `no', `posix', `win95', or `vista'])
 		;;
 esac
 
@@ -528,24 +519,20 @@ AM_CONDITIONAL([COND_DOC], [test x$enable_doc != xno])
 AC_MSG_CHECKING([if sandboxing should be used])
 AC_ARG_ENABLE([sandbox], [AS_HELP_STRING([--enable-sandbox=METHOD],
 		[Sandboxing METHOD can be
-		'auto', 'no', 'capsicum', 'pledge', or 'landlock'.
+		`auto', `no', `capsicum', or `pledge'.
-		The default is 'auto' which enables sandboxing if
+		The default is `auto' which enables sandboxing if
 		a supported sandboxing method is found.])],
 	[], [enable_sandbox=auto])
-case $enable_xzdec-$enable_xz-$enable_sandbox in
+case $enable_sandbox in
-	no-no-*)
+	auto)
-		enable_sandbox=no
-		AC_MSG_RESULT([no, --disable-xz and --disable-xzdec was used])
-		;;
-	*-*-auto)
 		AC_MSG_RESULT([maybe (autodetect)])
 		;;
-	*-*-no | *-*-capsicum | *-*-pledge | *-*-landlock)
+	no | capsicum | pledge)
 		AC_MSG_RESULT([$enable_sandbox])
 		;;
 	*)
 		AC_MSG_RESULT([])
-		AC_MSG_ERROR([--enable-sandbox only accepts 'auto', 'no', 'capsicum', 'pledge', or 'landlock'.])
+		AC_MSG_ERROR([--enable-sandbox only accepts `auto', `no', `capsicum', or `pledge'.])
 		;;
 esac
 
@@ -635,10 +622,21 @@ AS_CASE([$enable_threads],
 		AC_DEFINE([MYTHREAD_POSIX], [1],
 			[Define to 1 when using POSIX threads (pthreads).])
 
-		# This is nice to have but not mandatory.
+		# These are nice to have but not mandatory.
+		#
+		# FIXME: xz uses clock_gettime if it is available and can do
+		# it even when threading is disabled. Moving this outside
+		# of pthread detection may be undesirable because then
+		# liblzma may get linked against librt even when librt isn't
+		# needed by liblzma.
 		OLD_CFLAGS=$CFLAGS
 		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-		AC_CHECK_FUNCS([pthread_condattr_setclock])
+		AC_SEARCH_LIBS([clock_gettime], [rt])
+		AC_CHECK_FUNCS([clock_gettime pthread_condattr_setclock])
+		AC_CHECK_DECL([CLOCK_MONOTONIC], [AC_DEFINE(
+			[HAVE_CLOCK_MONOTONIC], [1], [Define to 1 if
+			`CLOCK_MONOTONIC' is declared in <time.h>.])], [],
+			[[#include <time.h>]])
 		CFLAGS=$OLD_CFLAGS
 	],
 	[win95], [
@@ -709,44 +707,23 @@ fi
 # --with-pic and --without-pic though. As long as neither --with-pic nor
 # --without-pic is used then we can use #ifdef PIC to detect if the file is
 # being built for a shared library.
-AS_IF([test "x$enable_symbol_versions" = xno], [
+if test "x$enable_symbol_versions" = xno ; then
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no])
-], [test "x$enable_shared" = xno], [
+elif test "x$enable_shared" = xno ; then
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no (not building a shared library)])
-], [
+else
-	# "yes" means that symbol version are to be used but we need to
-	# autodetect which variant to use.
-	if test "x$enable_symbol_versions" = xyes ; then
 	case "$host_cpu-$host_os" in
 		microblaze*)
-				# GCC 12 on MicroBlaze doesn't support
+			# GCC 12 on MicroBlaze doesn't support __symver__
-				# __symver__ attribute. It's simplest and
+			# attribute. It's simplest and safest to use the
-				# safest to use the generic version on that
+			# generic version on that platform since then only
-				# platform since then only the linker script
+			# the linker script is needed. The RHEL/CentOS 7
-				# is needed. The RHEL/CentOS 7 compatibility
+			# compatibility symbols don't matter on MicroBlaze.
-				# symbols don't matter on MicroBlaze.
 			enable_symbol_versions=generic
 			;;
 		*-linux*)
-				# NVIDIA HPC Compiler doesn't support symbol
-				# versioning but the linker script can still
-				# be used.
-				AC_EGREP_CPP([use_generic_symbol_versioning],
-					[#ifdef __NVCOMPILER
-					use_generic_symbol_versioning
-					#endif],
-					[enable_symbol_versions=generic],
-					[enable_symbol_versions=linux])
-				;;
-			*)
-				enable_symbol_versions=generic
-				;;
-		esac
-	fi
-
-	if test "x$enable_symbol_versions" = xlinux ; then
 			case "$pic_mode-$enable_static" in
 				default-*)
 					# Use symvers if PIC is defined.
@@ -767,6 +744,7 @@ AS_IF([test "x$enable_symbol_versions" = xno], [
     possibly picking only src/liblzma/.libs/liblzma.a from the static build.])
 					;;
 			esac
+			enable_symbol_versions=linux
 			AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
 				[$have_symbol_versions_linux],
 				[Define to 1 to if GNU/Linux-specific details
@@ -777,12 +755,13 @@ AS_IF([test "x$enable_symbol_versions" = xno], [
 				time with Libtool if neither --with-pic nor
 				--without-pic is used). This define must be
 				used together with liblzma_linux.map.])
-	elif test "x$enable_symbol_versions" != xgeneric ; then
+			;;
-		AC_MSG_RESULT([])
+		*)
-		AC_MSG_ERROR([unknown symbol versioning variant '$enable_symbol_versions'])
+			enable_symbol_versions=generic
-	fi
+			;;
+	esac
 	AC_MSG_RESULT([yes ($enable_symbol_versions)])
-])
+fi
 
 AM_CONDITIONAL([COND_SYMVERS_LINUX],
 	[test "x$enable_symbol_versions" = xlinux])
@@ -879,6 +858,7 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 ])
 CFLAGS="$OLD_CFLAGS"
 
+
 # The Win95 threading lacks a thread-safe one-time initialization function.
 # The one-time initialization is needed for crc32_small.c and crc64_small.c
 # create the CRC tables. So if small mode is enabled, the threading mode is
@@ -893,86 +873,6 @@ if test "x$enable_small$enable_threads$have_func_attribute_constructor" \
     __attribute__((__constructor__))])
 fi
 
-# __attribute__((__ifunc__())) can be used to choose between different
-# implementations of the same function at runtime. This is slightly more
-# efficient than using __attribute__((__constructor__)) and setting
-# a function pointer.
-AC_ARG_ENABLE([ifunc], [AS_HELP_STRING([--enable-ifunc],
-		[Use __attribute__((__ifunc__())). Enabled by default on
-		GNU/Linux (glibc) and FreeBSD.])],
-	[], [enable_ifunc=auto])
-
-# When enable_ifunc is 'auto', allow the use of __attribute__((__ifunc__()))
-# if compiler support is detected and we are building for GNU/Linux (glibc)
-# or FreeBSD. uClibc and musl don't support ifunc in their dynamic linkers
-# but some compilers still accept the attribute when compiling for these
-# C libraries, which results in broken binaries. That's why we need to
-# check which libc is being used.
-if test "x$enable_ifunc" = xauto ; then
-	OLD_CFLAGS="$CFLAGS"
-	CFLAGS="$CFLAGS -Werror"
-	AC_MSG_CHECKING([if __attribute__((__ifunc__())) can be used])
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-		/*
-		 * Force a compilation error when not using glibc on Linux
-		 * or if we are not using FreeBSD. uClibc will define
-		 * __GLIBC__ but does not support ifunc, so we must have
-		 * an extra check to disable with uClibc.
-		 */
-		#if defined(__linux__)
-		#	include <features.h>
-		#	if !defined(__GLIBC__) || defined(__UCLIBC__)
-				compile error
-		#	endif
-		#elif !defined(__FreeBSD__)
-			compile error
-		#endif
-
-		static void func(void) { return; }
-
-		/*
-		 * The attribute __no_profile_instrument_function__ is
-		 * needed with GCC to prevent improper instrumentation in
-		 * the ifunc resolver.
-		 */
-		__attribute__((__no_profile_instrument_function__))
-		static void (*resolve_func (void)) (void) { return func; }
-		void func_ifunc (void)
-				__attribute__((__ifunc__("resolve_func")));
-		/*
-		 * 'clang -Wall' incorrectly warns that resolve_func is
-		 * unused (-Wunused-function). Correct assembly output is
-		 * still produced. This problem exists at least in Clang
-		 * versions 4 to 17. The following silences the bogus warning:
-		 */
-		void make_clang_quiet(void);
-		void make_clang_quiet(void) { resolve_func()(); }
-	]])], [
-		enable_ifunc=yes
-	], [
-		enable_ifunc=no
-	])
-
-	AC_MSG_RESULT([$enable_ifunc])
-
-	CFLAGS="$OLD_CFLAGS"
-fi
-
-if test "x$enable_ifunc" = xyes ; then
-	AC_DEFINE([HAVE_FUNC_ATTRIBUTE_IFUNC], [1],
-			[Define to 1 if __attribute__((__ifunc__()))
-			is supported for functions.])
-
-	# ifunc explicitly does not work with -fsanitize=address.
-	# If configured, it will result in a liblzma build that will fail
-	# when liblzma is loaded at runtime (when the ifunc resolver
-	# executes).
-	AS_CASE([$CFLAGS], [*-fsanitize=*], [AC_MSG_ERROR([
-    CFLAGS contains '-fsanitize=' which is incompatible with ifunc.
-    Use --disable-ifunc when using '-fsanitize'.])])
-fi
-
-
 ###############################################################################
 # Checks for library functions.
 ###############################################################################
@@ -980,22 +880,6 @@ fi
 # Gnulib replacements as needed
 gl_GETOPT
 
-# If clock_gettime() is available, liblzma with pthreads may use it, and
-# xz may use it even when threading support is disabled. In XZ Utils 5.4.x
-# and older, configure checked for clock_gettime() only when using pthreads.
-# This way non-threaded builds of liblzma didn't get a useless dependency on
-# librt which further had a dependency on libpthread. Avoiding these was
-# useful when a small build was needed, for example, for initramfs use.
-#
-# The above reasoning is thoroughly obsolete: On GNU/Linux, librt hasn't
-# been needed for clock_gettime() since glibc 2.17 (2012-12-25).
-# Solaris 10 needs librt but Solaris 11 doesn't anymore.
-AC_SEARCH_LIBS([clock_gettime], [rt])
-AC_CHECK_FUNCS([clock_gettime])
-AC_CHECK_DECL([CLOCK_MONOTONIC], [AC_DEFINE([HAVE_CLOCK_MONOTONIC], [1],
-	[Define to 1 if 'CLOCK_MONOTONIC' is declared in <time.h>.])], [],
-	[[#include <time.h>]])
-
 # Find the best function to set timestamps.
 AC_CHECK_FUNCS([futimens futimes futimesat utimes _futime utime], [break])
 
@@ -1115,121 +999,21 @@ __m128i my_clmul(__m128i a)
 			[Define to 1 if _mm_set_epi64x and
 			_mm_clmulepi64_si128 are usable.
 			See configure.ac for details.])
-		enable_clmul_crc=yes
-	], [
-		enable_clmul_crc=no
-	])
-	AC_MSG_RESULT([$enable_clmul_crc])
-])
-
-# ARM64 C Language Extensions define CRC32 functions in arm_acle.h.
-# These are supported by at least GCC and Clang which both need
-# __attribute__((__target__("+crc"))), unless the needed compiler flags
-# are used to support the CRC instruction.
-AC_MSG_CHECKING([if ARM64 CRC32 instruction is usable])
-AS_IF([test "x$enable_arm64_crc32" = xno], [
-	AC_MSG_RESULT([no, --disable-arm64-crc32 was used])
-], [
-	# Set -Werror here because some versions of Clang (14 and older)
-	# do not report the unsupported __attribute__((__target__("+crc")))
-	# or __crc32d() as an error, only as a warning. This does not need
-	# to be done with CMake because tests will attempt to link and the
-	# error will be reported then.
-	OLD_CFLAGS="$CFLAGS"
-	CFLAGS="$CFLAGS -Werror"
-
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-#include <arm_acle.h>
-#include <stdint.h>
-
-#if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
-__attribute__((__target__("+crc")))
-#endif
-uint32_t my_crc(uint32_t a, uint64_t b)
-{
-	return __crc32d(a, b);
-}
-	]])], [
-		AC_DEFINE([HAVE_ARM64_CRC32], [1],
-			[Define to 1 if ARM64 CRC32 instruction is supported.
-			See configure.ac for details.])
-		enable_arm64_crc32=yes
-	], [
-		enable_arm64_crc32=no
-	])
-	AC_MSG_RESULT([$enable_arm64_crc32])
-
-	CFLAGS="$OLD_CFLAGS"
-])
-
-# Check for ARM64 CRC32 instruction runtime detection.
-# getauxval() is supported on Linux, elf_aux_info() on FreeBSD, and
-# sysctlbyname("hw.optional.armv8_crc32", ...) is supported on Darwin
-# (macOS, iOS, etc.). Note that sysctlbyname() is supported on FreeBSD,
-# NetBSD, and possibly others too but the string is specific to Apple OSes.
-# The C code is responsible for checking defined(__APPLE__) before using
-# sysctlbyname("hw.optional.armv8_crc32", ...).
-AS_IF([test "x$enable_arm64_crc32" = xyes], [
-	AC_CHECK_FUNCS([getauxval elf_aux_info sysctlbyname])
-])
-
-
-# Check for sandbox support. If one is found, set enable_sandbox=found.
-#
-# About -fsanitize: Of our three sandbox methods, only Landlock is
-# incompatible with -fsanitize. FreeBSD 13.2 with Capsicum was tested with
-# -fsanitize=address,undefined and had no issues. OpenBSD (as of version
-# 7.4) has minimal support for process instrumentation. OpenBSD does not
-# distribute the additional libraries needed (libasan, libubsan, etc.) with
-# GCC or Clang needed for runtime sanitization support and instead only
-# support -fsanitize-minimal-runtime for minimal undefined behavior
-# sanitization. This minimal support is compatible with our use of the
-# Pledge sandbox. So only Landlock will result in a build that cannot
-# compress or decompress a single file to standard out.
-AS_CASE([$enable_sandbox],
-	[auto | capsicum], [
-		AC_CHECK_FUNCS([cap_rights_limit], [enable_sandbox=found])
-	]
-)
-AS_CASE([$enable_sandbox],
-	[auto | pledge], [
-		AC_CHECK_FUNCS([pledge], [enable_sandbox=found])
-	]
-)
-AS_CASE([$enable_sandbox],
-	[auto | landlock], [
-		AC_MSG_CHECKING([if Linux Landlock is usable])
-
-		# A compile check is done here because some systems have
-		# linux/landlock.h, but do not have the syscalls defined
-		# in order to actually use Linux Landlock.
-		AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-			#include <linux/landlock.h>
-			#include <sys/syscall.h>
-			#include <sys/prctl.h>
-
-			void my_sandbox(void)
-			{
-				(void)prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
-				(void)SYS_landlock_create_ruleset;
-				(void)SYS_landlock_restrict_self;
-				(void)LANDLOCK_CREATE_RULESET_VERSION;
-				return;
-			}
-		]])], [
-			enable_sandbox=found
-
-			AS_CASE([$CFLAGS], [*-fsanitize=*], [AC_MSG_ERROR([
-    CFLAGS contains '-fsanitize=' which is incompatible with the Landlock
-    sandboxing. Use --disable-sandbox when using '-fsanitize'.])])
-
-			AC_DEFINE([HAVE_LINUX_LANDLOCK], [1],
-				[Define to 1 if Linux Landlock is supported.
-				See configure.ac for details.])
 		AC_MSG_RESULT([yes])
 	], [
 		AC_MSG_RESULT([no])
 	])
+])
+
+# Check for sandbox support. If one is found, set enable_sandbox=found.
+AS_CASE([$enable_sandbox],
+	[auto | capsicum], [
+		AX_CHECK_CAPSICUM([enable_sandbox=found], [:])
+	]
+)
+AS_CASE([$enable_sandbox],
+	[auto | pledge], [
+		AC_CHECK_FUNCS([pledge], [enable_sandbox=found ; break])
 	]
 )
 
@@ -1279,6 +1063,7 @@ AS_IF([test "$GCC" = yes], [
 			-Wall \
 			-Wextra \
 			-Wvla \
+			-Wc99-c11-compat \
 			-Wformat=2 \
 			-Winit-self \
 			-Wmissing-include-dirs \

debug/Makefile.am

@@ -1,5 +1,9 @@
-## SPDX-License-Identifier: 0BSD
+##
 ## Author: Lasse Collin
+##
+## This file has been put into the public domain.
+## You can do whatever you want with this file.
+##
 
 EXTRA_DIST = \
 	translation.bash

debug/crc32.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       crc32.c
@@ -7,6 +5,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/full_flush.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       full_flush.c
@@ -7,6 +5,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/hex2bin.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       hex2bin.c
@@ -7,6 +5,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/known_sizes.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       known_sizes.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/memusage.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       memusage.c
@@ -7,6 +5,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/repeat.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       repeat.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/sync_flush.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       sync_flush.c
@@ -7,6 +5,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "sysdefs.h"

debug/translation.bash

@@ -1,5 +1,4 @@
 #!/bin/bash
-# SPDX-License-Identifier: 0BSD
 
 ###############################################################################
 #
@@ -21,6 +20,9 @@
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 set -e

doc/examples/01_compress_easy.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       01_compress_easy.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdbool.h>
@@ -26,7 +27,7 @@ show_usage_and_exit(const char *argv0)
 {
 	fprintf(stderr, "Usage: %s PRESET < INFILE > OUTFILE\n"
 			"PRESET is a number 0-9 and can optionally be "
-			"followed by 'e' to indicate extreme preset\n",
+			"followed by `e' to indicate extreme preset\n",
 			argv0);
 	exit(EXIT_FAILURE);
 }

doc/examples/02_decompress.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       02_decompress.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdbool.h>

doc/examples/03_compress_custom.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       03_compress_custom.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdbool.h>

doc/examples/04_compress_easy_mt.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       04_compress_easy_mt.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdbool.h>

doc/examples/11_file_info.c

@@ -1,5 +1,3 @@
-// SPDX-License-Identifier: 0BSD
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       11_file_info.c
@@ -11,6 +9,9 @@
 //
 //  Author:     Lasse Collin
 //
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include <stdbool.h>
@@ -32,7 +33,7 @@ print_file_size(lzma_stream *strm, FILE *infile, const char *filename)
 	// large files on 32-bit systems (POSIX versions fseeko() and
 	// ftello() can support large files).
 	if (fseek(infile, 0, SEEK_END)) {
-		fprintf(stderr, "Error seeking the file '%s': %s\n",
+		fprintf(stderr, "Error seeking the file `%s': %s\n",
 				filename, strerror(errno));
 		return false;
 	}
@@ -79,7 +80,7 @@ print_file_size(lzma_stream *strm, FILE *infile, const char *filename)
 
 			if (ferror(infile)) {
 				fprintf(stderr,
-					"Error reading from '%s': %s\n",
+					"Error reading from `%s': %s\n",
 					filename, strerror(errno));
 				return false;
 			}
@@ -103,7 +104,7 @@ print_file_size(lzma_stream *strm, FILE *infile, const char *filename)
 			// switch fseeko() or lseek().
 			if (fseek(infile, (long)(strm->seek_pos), SEEK_SET)) {
 				fprintf(stderr, "Error seeking the "
-						"file '%s': %s\n",
+						"file `%s': %s\n",
 						filename, strerror(errno));
 				return false;
 			}
@@ -132,24 +133,24 @@ print_file_size(lzma_stream *strm, FILE *infile, const char *filename)
 
 		case LZMA_FORMAT_ERROR:
 			// .xz magic bytes weren't found.
-			fprintf(stderr, "The file '%s' is not "
+			fprintf(stderr, "The file `%s' is not "
 					"in the .xz format\n", filename);
 			return false;
 
 		case LZMA_OPTIONS_ERROR:
-			fprintf(stderr, "The file '%s' has .xz headers that "
+			fprintf(stderr, "The file `%s' has .xz headers that "
 					"are not supported by this liblzma "
 					"version\n", filename);
 			return false;
 
 		case LZMA_DATA_ERROR:
-			fprintf(stderr, "The file '%s' is corrupt\n",
+			fprintf(stderr, "The file `%s' is corrupt\n",
 					filename);
 			return false;
 
 		case LZMA_MEM_ERROR:
 			fprintf(stderr, "Memory allocation failed when "
-					"decoding the file '%s'\n", filename);
+					"decoding the file `%s'\n", filename);
 			return false;
 
 		// LZMA_MEMLIMIT_ERROR shouldn't happen because we used
@@ -182,7 +183,7 @@ main(int argc, char **argv)
 		FILE *infile = fopen(argv[i], "rb");
 
 		if (infile == NULL) {
-			fprintf(stderr, "Cannot open the file '%s': %s\n",
+			fprintf(stderr, "Cannot open the file `%s': %s\n",
 					argv[i], strerror(errno));
 			success = false;
 		}

doc/examples/Makefile

@@ -1,5 +1,9 @@
-# SPDX-License-Identifier: 0BSD
+#
 # Author: Lasse Collin
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 CC = c99
 CFLAGS = -g

doc/examples_old/xz_pipe_comp.c

@@ -0,0 +1,127 @@
+/*
+ * xz_pipe_comp.c
+ * A simple example of pipe-only xz compressor implementation.
+ * version: 2010-07-12 - by Daniel Mealha Cabrita
+ * Not copyrighted -- provided to the public domain.
+ *
+ * Compiling:
+ * Link with liblzma. GCC example:
+ * $ gcc -llzma xz_pipe_comp.c -o xz_pipe_comp
+ *
+ * Usage example:
+ * $ cat some_file | ./xz_pipe_comp > some_file.xz
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <lzma.h>
+
+
+/* COMPRESSION SETTINGS */
+
+/* analogous to xz CLI options: -0 to -9 */
+#define COMPRESSION_LEVEL 6
+
+/* boolean setting, analogous to xz CLI option: -e */
+#define COMPRESSION_EXTREME true
+
+/* see: /usr/include/lzma/check.h LZMA_CHECK_* */
+#define INTEGRITY_CHECK LZMA_CHECK_CRC64
+
+
+/* read/write buffer sizes */
+#define IN_BUF_MAX	4096
+#define OUT_BUF_MAX	4096
+
+/* error codes */
+#define RET_OK			0
+#define RET_ERROR_INIT		1
+#define RET_ERROR_INPUT		2
+#define RET_ERROR_OUTPUT	3
+#define RET_ERROR_COMPRESSION	4
+
+
+/* note: in_file and out_file must be open already */
+int xz_compress (FILE *in_file, FILE *out_file)
+{
+	uint32_t preset = COMPRESSION_LEVEL | (COMPRESSION_EXTREME ? LZMA_PRESET_EXTREME : 0);
+	lzma_check check = INTEGRITY_CHECK;
+	lzma_stream strm = LZMA_STREAM_INIT; /* alloc and init lzma_stream struct */
+	uint8_t in_buf [IN_BUF_MAX];
+	uint8_t out_buf [OUT_BUF_MAX];
+	size_t in_len;	/* length of useful data in in_buf */
+	size_t out_len;	/* length of useful data in out_buf */
+	bool in_finished = false;
+	bool out_finished = false;
+	lzma_action action;
+	lzma_ret ret_xz;
+	int ret;
+
+	ret = RET_OK;
+
+	/* initialize xz encoder */
+	ret_xz = lzma_easy_encoder (&strm, preset, check);
+	if (ret_xz != LZMA_OK) {
+		fprintf (stderr, "lzma_easy_encoder error: %d\n", (int) ret_xz);
+		return RET_ERROR_INIT;
+	}
+
+	while ((! in_finished) && (! out_finished)) {
+		/* read incoming data */
+		in_len = fread (in_buf, 1, IN_BUF_MAX, in_file);
+
+		if (feof (in_file)) {
+			in_finished = true;
+		}
+		if (ferror (in_file)) {
+			in_finished = true;
+			ret = RET_ERROR_INPUT;
+		}
+
+		strm.next_in = in_buf;
+		strm.avail_in = in_len;
+
+		/* if no more data from in_buf, flushes the
+		   internal xz buffers and closes the xz data
+		   with LZMA_FINISH */
+		action = in_finished ? LZMA_FINISH : LZMA_RUN;
+
+		/* loop until there's no pending compressed output */
+		do {
+			/* out_buf is clean at this point */
+			strm.next_out = out_buf;
+			strm.avail_out = OUT_BUF_MAX;
+
+			/* compress data */
+			ret_xz = lzma_code (&strm, action);
+
+			if ((ret_xz != LZMA_OK) && (ret_xz != LZMA_STREAM_END)) {
+				fprintf (stderr, "lzma_code error: %d\n", (int) ret_xz);
+				out_finished = true;
+				ret = RET_ERROR_COMPRESSION;
+			} else {
+				/* write compressed data */
+				out_len = OUT_BUF_MAX - strm.avail_out;
+				fwrite (out_buf, 1, out_len, out_file);
+				if (ferror (out_file)) {
+					out_finished = true;
+					ret = RET_ERROR_OUTPUT;
+				}
+			}
+		} while (strm.avail_out == 0);
+	}
+
+	lzma_end (&strm);
+	return ret;
+}
+
+int main ()
+{
+	int ret;
+
+	ret = xz_compress (stdin, stdout);
+	return ret;
+}
+

doc/examples_old/xz_pipe_decomp.c

@@ -0,0 +1,123 @@
+/*
+ * xz_pipe_decomp.c
+ * A simple example of pipe-only xz decompressor implementation.
+ * version: 2012-06-14 - by Daniel Mealha Cabrita
+ * Not copyrighted -- provided to the public domain.
+ *
+ * Compiling:
+ * Link with liblzma. GCC example:
+ * $ gcc -llzma xz_pipe_decomp.c -o xz_pipe_decomp
+ *
+ * Usage example:
+ * $ cat some_file.xz | ./xz_pipe_decomp > some_file
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <lzma.h>
+
+
+/* read/write buffer sizes */
+#define IN_BUF_MAX	4096
+#define OUT_BUF_MAX	4096
+
+/* error codes */
+#define RET_OK			0
+#define RET_ERROR_INIT		1
+#define RET_ERROR_INPUT		2
+#define RET_ERROR_OUTPUT	3
+#define RET_ERROR_DECOMPRESSION	4
+
+
+/* note: in_file and out_file must be open already */
+int xz_decompress (FILE *in_file, FILE *out_file)
+{
+	lzma_stream strm = LZMA_STREAM_INIT; /* alloc and init lzma_stream struct */
+	const uint32_t flags = LZMA_TELL_UNSUPPORTED_CHECK | LZMA_CONCATENATED;
+	const uint64_t memory_limit = UINT64_MAX; /* no memory limit */
+	uint8_t in_buf [IN_BUF_MAX];
+	uint8_t out_buf [OUT_BUF_MAX];
+	size_t in_len;	/* length of useful data in in_buf */
+	size_t out_len;	/* length of useful data in out_buf */
+	bool in_finished = false;
+	bool out_finished = false;
+	lzma_action action;
+	lzma_ret ret_xz;
+	int ret;
+
+	ret = RET_OK;
+
+	/* initialize xz decoder */
+	ret_xz = lzma_stream_decoder (&strm, memory_limit, flags);
+	if (ret_xz != LZMA_OK) {
+		fprintf (stderr, "lzma_stream_decoder error: %d\n", (int) ret_xz);
+		return RET_ERROR_INIT;
+	}
+
+	while ((! in_finished) && (! out_finished)) {
+		/* read incoming data */
+		in_len = fread (in_buf, 1, IN_BUF_MAX, in_file);
+
+		if (feof (in_file)) {
+			in_finished = true;
+		}
+		if (ferror (in_file)) {
+			in_finished = true;
+			ret = RET_ERROR_INPUT;
+		}
+
+		strm.next_in = in_buf;
+		strm.avail_in = in_len;
+
+		/* if no more data from in_buf, flushes the
+		   internal xz buffers and closes the decompressed data
+		   with LZMA_FINISH */
+		action = in_finished ? LZMA_FINISH : LZMA_RUN;
+
+		/* loop until there's no pending decompressed output */
+		do {
+			/* out_buf is clean at this point */
+			strm.next_out = out_buf;
+			strm.avail_out = OUT_BUF_MAX;
+
+			/* decompress data */
+			ret_xz = lzma_code (&strm, action);
+
+			if ((ret_xz != LZMA_OK) && (ret_xz != LZMA_STREAM_END)) {
+				fprintf (stderr, "lzma_code error: %d\n", (int) ret_xz);
+				out_finished = true;
+				ret = RET_ERROR_DECOMPRESSION;
+			} else {
+				/* write decompressed data */
+				out_len = OUT_BUF_MAX - strm.avail_out;
+				fwrite (out_buf, 1, out_len, out_file);
+				if (ferror (out_file)) {
+					out_finished = true;
+					ret = RET_ERROR_OUTPUT;
+				}
+			}
+		} while (strm.avail_out == 0);
+	}
+
+	/* Bug fix (2012-06-14): If no errors were detected, check
+	   that the last lzma_code() call returned LZMA_STREAM_END.
+	   If not, the file is probably truncated. */
+	if ((ret == RET_OK) && (ret_xz != LZMA_STREAM_END)) {
+		fprintf (stderr, "Input truncated or corrupt\n");
+		ret = RET_ERROR_DECOMPRESSION;
+	}
+
+	lzma_end (&strm);
+	return ret;
+}
+
+int main ()
+{
+	int ret;
+
+	ret = xz_decompress (stdin, stdout);
+	return ret;
+}
+

dos/Makefile

@@ -1,11 +1,12 @@
-# SPDX-License-Identifier: 0BSD
-
 ###############################################################################
 #
 # Makefile to build XZ Utils using DJGPP
 #
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 # For debugging, set comment "#define NDEBUG 1" from config.h to enable

dos/config.h

@@ -1,5 +1,3 @@
-/* SPDX-License-Identifier: 0BSD */
-
 /* How many MiB of RAM to assume if the real amount cannot be determined. */
 #define ASSUME_RAM 32
 
@@ -117,14 +115,14 @@
 /* Define to 1 if you have the <sys/time.h> header file. */
 #define HAVE_SYS_TIME_H 1
 
-/* Define to 1 if you have the 'utimes' function. */
+/* Define to 1 if you have the `utimes' function. */
 #define HAVE_UTIMES 1
 
 /* Define to 1 or 0, depending whether the compiler supports simple visibility
    declarations. */
 #define HAVE_VISIBILITY 0
 
-/* Define to 1 if the system has the type '_Bool'. */
+/* Define to 1 if the system has the type `_Bool'. */
 #define HAVE__BOOL 1
 
 /* Define to 1 if the GNU C extension __builtin_assume_aligned is supported.
@@ -147,7 +145,7 @@
 /* Define to the home page for this package. */
 #define PACKAGE_URL "https://xz.tukaani.org/xz-utils/"
 
-/* The size of 'size_t', as computed by sizeof. */
+/* The size of `size_t', as computed by sizeof. */
 #define SIZEOF_SIZE_T 4
 
 /* Define to 1 if the system supports fast unaligned access to 16-bit and

doxygen/Doxyfile

@@ -61,7 +61,7 @@ PROJECT_BRIEF          =
 # pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
 # the logo to the output directory.
 
-PROJECT_LOGO           = ../doc/xz-logo.png
+PROJECT_LOGO           =
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
 # into which the generated documentation will be written. If a relative path is
@@ -1246,7 +1246,7 @@ HTML_HEADER            =
 # that doxygen normally uses.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_FOOTER            = footer.html
+HTML_FOOTER            =
 
 # The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
 # sheet that is used by each HTML page. It can be used to fine-tune the look of
@@ -1286,7 +1286,7 @@ HTML_EXTRA_STYLESHEET  =
 # files will be copied as-is; there are no commands or markers available.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_FILES       = ../COPYING.CC-BY-SA-4.0
+HTML_EXTRA_FILES       =
 
 # The HTML_COLORSTYLE tag can be used to specify if the generated HTML output
 # should be rendered with a dark or light theme.

doxygen/footer.html

@@ -1,13 +0,0 @@
-<hr class="footer"/>
-
-<p style="text-align: right;padding-right: 12px;">
-	XZ logo &copy; 2023 by Jia Tan is licensed under
-	<a href="COPYING.CC-BY-SA-4.0"
-	   rel="license"
-	   style="display:inline-block;">
-		CC BY-SA 4.0
-	</a>
-</p>
-
-</body>
-</html>

doxygen/update-doxygen

@@ -1,6 +1,5 @@
 #!/bin/sh
-# SPDX-License-Identifier: 0BSD
+#
-
 #############################################################################
 #
 # Updates the Doxygen generated documentation files in the source tree.
@@ -17,6 +16,9 @@
 # Authors: Jia Tan
 #          Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 set -e

extra/7z2lzma/7z2lzma.bash

@@ -1,6 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: 0BSD
+#
-
 #############################################################################
 #
 # 7z2lzma.bash is very primitive .7z to .lzma converter. The input file must
@@ -18,6 +17,9 @@
 #
 # Author: Lasse Collin <lasse.collin@tukaani.org>
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 # You can use 7z or 7za, both will work.

extra/scanlzma/scanlzma.c

@@ -1,5 +1,3 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
 /*
     scanlzma, scan for lzma compressed data in stdin and echo it to stdout.
     Copyright (C) 2006 Timo Lindfors

lib/Makefile.am

@@ -1,5 +1,3 @@
-## SPDX-License-Identifier: GPL-2.0-or-later
-
 ##
 ## Copyright (C) 2004-2007 Free Software Foundation, Inc.
 ##
@@ -23,17 +21,7 @@ libgnu_a_SOURCES =
 libgnu_a_DEPENDENCIES = $(LIBOBJS)
 libgnu_a_LIBADD = $(LIBOBJS)
 
-EXTRA_DIST = \
+EXTRA_DIST = getopt.in.h getopt.c getopt1.c getopt_int.h
-	getopt.in.h \
-	getopt.c \
-	getopt1.c \
-	getopt_int.h \
-	getopt-cdefs.h \
-	getopt-core.h \
-	getopt-ext.h \
-	getopt-pfx-core.h \
-	getopt-pfx-ext.h
-
 BUILT_SOURCES = $(GETOPT_H)
 MOSTLYCLEANFILES = getopt.h getopt.h-t
 

lib/getopt-cdefs.h

@@ -1,72 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-/* getopt-on-non-glibc compatibility macros.
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
-   This file is part of gnulib.
-   Unlike most of the getopt implementation, it is NOT shared
-   with the GNU C Library.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#ifndef _GETOPT_CDEFS_H
-#define _GETOPT_CDEFS_H 1
-
-/* This header should not be used directly; include getopt.h or
-   unistd.h instead.  It does not have a protective #error, because
-   the guard macro for getopt.h in gnulib is not fixed.  */
-
-/* getopt-core.h and getopt-ext.h are shared with GNU libc, and expect
-   a number of the internal macros supplied to GNU libc's headers by
-   sys/cdefs.h.  Provide fallback definitions for all of them.  */
-#ifdef HAVE_SYS_CDEFS_H
-# include <sys/cdefs.h>
-#endif
-
-#ifndef __BEGIN_DECLS
-# ifdef __cplusplus
-#  define __BEGIN_DECLS extern "C" {
-# else
-#  define __BEGIN_DECLS /* nothing */
-# endif
-#endif
-#ifndef __END_DECLS
-# ifdef __cplusplus
-#  define __END_DECLS }
-# else
-#  define __END_DECLS /* nothing */
-# endif
-#endif
-
-#ifndef __GNUC_PREREQ
-# if defined __GNUC__ && defined __GNUC_VERSION__
-# define __GNUC_PREREQ(maj, min) \
-        ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
-# else
-#  define __GNUC_PREREQ(maj, min) 0
-# endif
-#endif
-
-#ifndef __THROW
-# if defined __cplusplus && (__GNUC_PREREQ (2,8) || __clang_major__ >= 4)
-#  if __cplusplus >= 201103L
-#   define __THROW      noexcept (true)
-#  else
-#   define __THROW      throw ()
-#  endif
-# else
-#  define __THROW
-# endif
-#endif
-
-#endif /* _GETOPT_CDEFS_H */

lib/getopt-core.h

@@ -1,98 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-/* Declarations for getopt (basic, portable features only).
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
-   This file is part of the GNU C Library and is also part of gnulib.
-   Patches to this file should be submitted to both projects.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _GETOPT_CORE_H
-#define _GETOPT_CORE_H 1
-
-/* This header should not be used directly; include getopt.h or
-   unistd.h instead.  Unlike most bits headers, it does not have
-   a protective #error, because the guard macro for getopt.h in
-   gnulib is not fixed.  */
-
-__BEGIN_DECLS
-
-/* For communication from 'getopt' to the caller.
-   When 'getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when 'ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to 'getopt'.
-
-   On entry to 'getopt', zero means this is the first call; initialize.
-
-   When 'getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, 'optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message 'getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-/* Get definitions and prototypes for functions to process the
-   arguments in ARGV (ARGC of them, minus the program name) for
-   options given in OPTS.
-
-   Return the option character from OPTS just read.  Return -1 when
-   there are no more options.  For unrecognized options, or options
-   missing arguments, 'optopt' is set to the option letter, and '?' is
-   returned.
-
-   The OPTS string is a list of characters which are recognized option
-   letters, optionally followed by colons, specifying that that letter
-   takes an argument, to be placed in 'optarg'.
-
-   If a letter in OPTS is followed by two colons, its argument is
-   optional.  This behavior is specific to the GNU 'getopt'.
-
-   The argument '--' causes premature termination of argument
-   scanning, explicitly telling 'getopt' that there are no more
-   options.
-
-   If OPTS begins with '-', then non-option arguments are treated as
-   arguments to the option '\1'.  This behavior is specific to the GNU
-   'getopt'.  If OPTS begins with '+', or POSIXLY_CORRECT is set in
-   the environment, then do not permute arguments.
-
-   For standards compliance, the 'argv' argument has the type
-   char *const *, but this is inaccurate; if argument permutation is
-   enabled, the argv array (not the strings it points to) must be
-   writable.  */
-
-extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-
-__END_DECLS
-
-#endif /* _GETOPT_CORE_H */

lib/getopt-ext.h

@@ -1,79 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-/* Declarations for getopt (GNU extensions).
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
-   This file is part of the GNU C Library and is also part of gnulib.
-   Patches to this file should be submitted to both projects.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#ifndef _GETOPT_EXT_H
-#define _GETOPT_EXT_H 1
-
-/* This header should not be used directly; include getopt.h instead.
-   Unlike most bits headers, it does not have a protective #error,
-   because the guard macro for getopt.h in gnulib is not fixed.  */
-
-__BEGIN_DECLS
-
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of 'struct option' terminated by an element containing a name which is
-   zero.
-
-   The field 'has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field 'flag' is not NULL, it points to a variable that is set
-   to the value given in the field 'val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an 'int' to
-   a compiled-in constant, such as set a value from 'optarg', set the
-   option's 'flag' field to zero and its 'val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero 'flag' field, 'getopt'
-   returns the contents of the 'val' field.  */
-
-struct option
-{
-  const char *name;
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the 'has_arg' field of 'struct option'.  */
-
-#define no_argument		0
-#define required_argument	1
-#define optional_argument	2
-
-extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
-			const char *__shortopts,
-		        const struct option *__longopts, int *__longind)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
-			     const char *__shortopts,
-		             const struct option *__longopts, int *__longind)
-       __THROW _GL_ARG_NONNULL ((2, 3));
-
-__END_DECLS
-
-#endif /* _GETOPT_EXT_H */

lib/getopt-pfx-core.h

@@ -1,68 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-/* getopt (basic, portable features) gnulib wrapper header.
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
-   This file is part of gnulib.
-   Unlike most of the getopt implementation, it is NOT shared
-   with the GNU C Library.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#ifndef _GETOPT_PFX_CORE_H
-#define _GETOPT_PFX_CORE_H 1
-
-/* This header should not be used directly; include getopt.h or
-   unistd.h instead.  It does not have a protective #error, because
-   the guard macro for getopt.h in gnulib is not fixed.  */
-
-/* Standalone applications should #define __GETOPT_PREFIX to an
-   identifier that prefixes the external functions and variables
-   defined in getopt-core.h and getopt-ext.h.  Systematically
-   rename identifiers so that they do not collide with the system
-   functions and variables.  Renaming avoids problems with some
-   compilers and linkers.  */
-#ifdef __GETOPT_PREFIX
-# ifndef __GETOPT_ID
-#  define __GETOPT_CONCAT(x, y) x ## y
-#  define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
-#  define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
-# endif
-# undef getopt
-# undef optarg
-# undef opterr
-# undef optind
-# undef optopt
-# define getopt __GETOPT_ID (getopt)
-# define optarg __GETOPT_ID (optarg)
-# define opterr __GETOPT_ID (opterr)
-# define optind __GETOPT_ID (optind)
-# define optopt __GETOPT_ID (optopt)
-
-/* Work around a problem on macOS, which declares getopt with a
-   trailing __DARWIN_ALIAS(getopt) that would expand to something like
-   __asm("_" "rpl_getopt" "$UNIX2003") were it not for the following
-   hack to suppress the macOS declaration <https://bugs.gnu.org/40205>.  */
-# ifdef __APPLE__
-#  define _GETOPT
-# endif
-
-/* The system's getopt.h may have already included getopt-core.h to
-   declare the unprefixed identifiers.  Undef _GETOPT_CORE_H so that
-   getopt-core.h declares them with prefixes.  */
-# undef _GETOPT_CORE_H
-#endif
-
-#include <getopt-core.h>
-
-#endif /* _GETOPT_PFX_CORE_H */

lib/getopt-pfx-ext.h

@@ -1,72 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
-/* getopt (GNU extensions) gnulib wrapper header.
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
-   This file is part of gnulib.
-   Unlike most of the getopt implementation, it is NOT shared
-   with the GNU C Library.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#ifndef _GETOPT_PFX_EXT_H
-#define _GETOPT_PFX_EXT_H 1
-
-/* This header should not be used directly; include getopt.h instead.
-   It does not have a protective #error, because the guard macro for
-   getopt.h in gnulib is not fixed.  */
-
-/* Standalone applications should #define __GETOPT_PREFIX to an
-   identifier that prefixes the external functions and variables
-   defined in getopt-core.h and getopt-ext.h.  Systematically
-   rename identifiers so that they do not collide with the system
-   functions and variables.  Renaming avoids problems with some
-   compilers and linkers.  */
-#ifdef __GETOPT_PREFIX
-# ifndef __GETOPT_ID
-#  define __GETOPT_CONCAT(x, y) x ## y
-#  define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
-#  define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
-# endif
-# undef getopt_long
-# undef getopt_long_only
-# undef option
-# undef _getopt_internal
-# define getopt_long __GETOPT_ID (getopt_long)
-# define getopt_long_only __GETOPT_ID (getopt_long_only)
-# define option __GETOPT_ID (option)
-# define _getopt_internal __GETOPT_ID (getopt_internal)
-
-/* The system's getopt.h may have already included getopt-ext.h to
-   declare the unprefixed identifiers.  Undef _GETOPT_EXT_H so that
-   getopt-ext.h declares them with prefixes.  */
-# undef _GETOPT_EXT_H
-#endif
-
-/* Standalone applications get correct prototypes for getopt_long and
-   getopt_long_only; they declare "char **argv".  For backward
-   compatibility with old applications, if __GETOPT_PREFIX is not
-   defined, we supply GNU-libc-compatible, but incorrect, prototypes
-   using "char *const *argv".  (GNU libc is stuck with the incorrect
-   prototypes, as they are baked into older versions of LSB.)  */
-#ifndef __getopt_argv_const
-# if defined __GETOPT_PREFIX
-#  define __getopt_argv_const /* empty */
-# else
-#  define __getopt_argv_const const
-# endif
-#endif
-
-#include <getopt-ext.h>
-
-#endif /* _GETOPT_PFX_EXT_H */

lib/getopt.in.h

@@ -1,28 +1,27 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
 /* Declarations for getopt.
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
+   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005,2006,2007
-   This file is part of gnulib.
+   Free Software Foundation, Inc.
-   Unlike most of the getopt implementation, it is NOT shared
+   This file is part of the GNU C Library.
-   with the GNU C Library, which supplies a different version of
-   this file.
 
-   This file is free software: you can redistribute it and/or modify
+   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
+   it under the terms of the GNU Lesser General Public License as published by
-   published by the Free Software Foundation; either version 2.1 of the
+   the Free Software Foundation; either version 2.1, or (at your option)
-   License, or (at your option) any later version.
+   any later version.
 
-   This file is distributed in the hope that it will be useful,
+   This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public License
+   You should have received a copy of the GNU Lesser General Public License along
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #ifndef _GETOPT_H
 
+#ifndef __need_getopt
 # define _GETOPT_H 1
+#endif
 
 /* Standalone applications should #define __GETOPT_PREFIX to an
    identifier that prefixes the external functions and variables
@@ -32,29 +31,196 @@
    identifiers so that they do not collide with the system functions
    and variables.  Renaming avoids problems with some compilers and
    linkers.  */
-#if defined __GETOPT_PREFIX
+#if defined __GETOPT_PREFIX && !defined __need_getopt
 # include <stdlib.h>
 # include <stdio.h>
-
-# ifndef _MSC_VER
 # include <unistd.h>
-# endif
+# undef __need_getopt
+# undef getopt
+# undef getopt_long
+# undef getopt_long_only
+# undef optarg
+# undef opterr
+# undef optind
+# undef optopt
+# define __GETOPT_CONCAT(x, y) x ## y
+# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
+# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
+# define getopt __GETOPT_ID (getopt)
+# define getopt_long __GETOPT_ID (getopt_long)
+# define getopt_long_only __GETOPT_ID (getopt_long_only)
+# define optarg __GETOPT_ID (optarg)
+# define opterr __GETOPT_ID (opterr)
+# define optind __GETOPT_ID (optind)
+# define optopt __GETOPT_ID (optopt)
 #endif
 
-/* From Gnulib's lib/arg-nonnull.h: */
+/* Standalone applications get correct prototypes for getopt_long and
-/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
+   getopt_long_only; they declare "char **argv".  libc uses prototypes
-   that the values passed as arguments n, ..., m must be non-NULL pointers.
+   with "char *const *argv" that are incorrect because getopt_long and
-   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
+   getopt_long_only can permute argv; this is required for backward
-#ifndef _GL_ARG_NONNULL
+   compatibility (e.g., for LSB 2.0.1).
-# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+
-#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+   This used to be `#if defined __GETOPT_PREFIX && !defined __need_getopt',
+   but it caused redefinition warnings if both unistd.h and getopt.h were
+   included, since unistd.h includes getopt.h having previously defined
+   __need_getopt.
+
+   The only place where __getopt_argv_const is used is in definitions
+   of getopt_long and getopt_long_only below, but these are visible
+   only if __need_getopt is not defined, so it is quite safe to rewrite
+   the conditional as follows:
+*/
+#if !defined __need_getopt
+# if defined __GETOPT_PREFIX
+#  define __getopt_argv_const /* empty */
 # else
-#  define _GL_ARG_NONNULL(params)
+#  define __getopt_argv_const const
 # endif
 #endif
 
-#include <getopt-cdefs.h>
+/* If __GNU_LIBRARY__ is not already defined, either we are being used
-#include <getopt-pfx-core.h>
+   standalone, or this is the first header included in the source file.
-#include <getopt-pfx-ext.h>
+   If we are being used with glibc, we need to include <features.h>, but
+   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
+   not defined, include <ctype.h>, which will pull in <features.h> for us
+   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
+   doesn't flood the namespace with stuff the way some other headers do.)  */
+#if !defined __GNU_LIBRARY__
+# include <ctype.h>
+#endif
 
-#endif /* _GETOPT_H */
+#ifndef __THROW
+# ifndef __GNUC_PREREQ
+#  define __GNUC_PREREQ(maj, min) (0)
+# endif
+# if defined __cplusplus && __GNUC_PREREQ (2,8)
+#  define __THROW	throw ()
+# else
+#  define __THROW
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here.
+   Also, when `ordering' is RETURN_IN_ORDER,
+   each non-option ARGV-element is returned here.  */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns -1, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+   for unrecognized options.  */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized.  */
+
+extern int optopt;
+
+#ifndef __need_getopt
+/* Describe the long-named options requested by the application.
+   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+   of `struct option' terminated by an element containing a name which is
+   zero.
+
+   The field `has_arg' is:
+   no_argument		(or 0) if the option does not take an argument,
+   required_argument	(or 1) if the option requires an argument,
+   optional_argument	(or 2) if the option takes an optional argument.
+
+   If the field `flag' is not NULL, it points to a variable that is set
+   to the value given in the field `val' when the option is found, but
+   left unchanged if the option is not found.
+
+   To have a long-named option do something other than set an `int' to
+   a compiled-in constant, such as set a value from `optarg', set the
+   option's `flag' field to zero and its `val' field to a nonzero
+   value (the equivalent single-letter option character, if there is
+   one).  For long options that have a zero `flag' field, `getopt'
+   returns the contents of the `val' field.  */
+
+struct option
+{
+  const char *name;
+  /* has_arg can't be an enum because some compilers complain about
+     type mismatches in all the code that assumes it is an int.  */
+  int has_arg;
+  int *flag;
+  int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'.  */
+
+# define no_argument		0
+# define required_argument	1
+# define optional_argument	2
+#endif	/* need getopt */
+
+
+/* Get definitions and prototypes for functions to process the
+   arguments in ARGV (ARGC of them, minus the program name) for
+   options given in OPTS.
+
+   Return the option character from OPTS just read.  Return -1 when
+   there are no more options.  For unrecognized options, or options
+   missing arguments, `optopt' is set to the option letter, and '?' is
+   returned.
+
+   The OPTS string is a list of characters which are recognized option
+   letters, optionally followed by colons, specifying that that letter
+   takes an argument, to be placed in `optarg'.
+
+   If a letter in OPTS is followed by two colons, its argument is
+   optional.  This behavior is specific to the GNU `getopt'.
+
+   The argument `--' causes premature termination of argument
+   scanning, explicitly telling `getopt' that there are no more
+   options.
+
+   If OPTS begins with `-', then non-option arguments are treated as
+   arguments to the option '\1'.  This behavior is specific to the GNU
+   `getopt'.  If OPTS begins with `+', or POSIXLY_CORRECT is set in
+   the environment, then do not permute arguments.  */
+
+extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
+       __THROW;
+
+#ifndef __need_getopt
+extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
+			const char *__shortopts,
+		        const struct option *__longopts, int *__longind)
+       __THROW;
+extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
+			     const char *__shortopts,
+		             const struct option *__longopts, int *__longind)
+       __THROW;
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Make sure we later can get all the definitions and declarations.  */
+#undef __need_getopt
+
+#endif /* getopt.h */

lib/getopt1.c

@@ -1,32 +1,41 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
 /* getopt_long and getopt_long_only entry points for GNU getopt.
-   Copyright (C) 1987-2023 Free Software Foundation, Inc.
+   Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006
-   This file is part of the GNU C Library and is also part of gnulib.
+     Free Software Foundation, Inc.
-   Patches to this file should be submitted to both projects.
+   This file is part of the GNU C Library.
 
-   The GNU C Library is free software; you can redistribute it and/or
+   This program is free software; you can redistribute it and/or modify
-   modify it under the terms of the GNU Lesser General Public
+   it under the terms of the GNU Lesser General Public License as published by
-   License as published by the Free Software Foundation; either
+   the Free Software Foundation; either version 2.1, or (at your option)
-   version 2.1 of the License, or (at your option) any later version.
+   any later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   Lesser General Public License for more details.
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
+   You should have received a copy of the GNU Lesser General Public License along
-   License along with the GNU C Library; if not, see
+   with this program; if not, write to the Free Software Foundation,
-   <https://www.gnu.org/licenses/>.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _LIBC
+#ifdef _LIBC
-# ifdef HAVE_CONFIG_H
+# include <getopt.h>
+#else
 # include <config.h>
+# include "getopt.h"
 #endif
+#include "getopt_int.h"
+
+#include <stdio.h>
+
+/* This needs to come after some library #include
+   to get __GNU_LIBRARY__ defined.  */
+#ifdef __GNU_LIBRARY__
+#include <stdlib.h>
 #endif
 
-#include "getopt.h"
+#ifndef	NULL
-#include "getopt_int.h"
+#define NULL 0
+#endif
 
 int
 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
@@ -42,7 +51,7 @@ _getopt_long_r (int argc, char **argv, const char *options,
 		struct _getopt_data *d)
 {
   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
-			     0, d, 0);
+			     0, 0, d);
 }
 
 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
@@ -65,14 +74,13 @@ _getopt_long_only_r (int argc, char **argv, const char *options,
 		     struct _getopt_data *d)
 {
   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
-			     1, d, 0);
+			     1, 0, d);
 }
 
 
 #ifdef TEST
 
 #include <stdio.h>
-#include <stdlib.h>
 
 int
 main (int argc, char **argv)
@@ -84,7 +92,7 @@ main (int argc, char **argv)
     {
       int this_option_optind = optind ? optind : 1;
       int option_index = 0;
-      static const struct option long_options[] =
+      static struct option long_options[] =
       {
 	{"add", 1, 0, 0},
 	{"append", 0, 0, 0},
@@ -134,11 +142,11 @@ main (int argc, char **argv)
 	  break;
 
 	case 'c':
-	  printf ("option c with value '%s'\n", optarg);
+	  printf ("option c with value `%s'\n", optarg);
 	  break;
 
 	case 'd':
-	  printf ("option d with value '%s'\n", optarg);
+	  printf ("option d with value `%s'\n", optarg);
 	  break;
 
 	case '?':

lib/getopt_int.h

@@ -1,29 +1,25 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
 /* Internal declarations for getopt.
-   Copyright (C) 1989-2023 Free Software Foundation, Inc.
+   Copyright (C) 1989-1994,1996-1999,2001,2003,2004
-   This file is part of the GNU C Library and is also part of gnulib.
+   Free Software Foundation, Inc.
-   Patches to this file should be submitted to both projects.
+   This file is part of the GNU C Library.
 
-   The GNU C Library is free software; you can redistribute it and/or
+   This program is free software; you can redistribute it and/or modify
-   modify it under the terms of the GNU Lesser General Public
+   it under the terms of the GNU General Public License as published by
-   License as published by the Free Software Foundation; either
+   the Free Software Foundation; either version 2, or (at your option)
-   version 2.1 of the License, or (at your option) any later version.
+   any later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   Lesser General Public License for more details.
+   GNU General Public License for more details.
 
-   You should have received a copy of the GNU Lesser General Public
+   You should have received a copy of the GNU General Public License along
-   License along with the GNU C Library; if not, see
+   with this program; if not, write to the Free Software Foundation,
-   <https://www.gnu.org/licenses/>.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #ifndef _GETOPT_INT_H
 #define _GETOPT_INT_H	1
 
-#include <getopt.h>
-
 extern int _getopt_internal (int ___argc, char **___argv,
 			     const char *__shortopts,
 		             const struct option *__longopts, int *__longind,
@@ -33,32 +29,6 @@ extern int _getopt_internal (int ___argc, char **___argv,
 /* Reentrant versions which can handle parsing multiple argument
    vectors at the same time.  */
 
-/* Describe how to deal with options that follow non-option ARGV-elements.
-
-   REQUIRE_ORDER means don't recognize them as options; stop option
-   processing when the first non-option is seen.  This is what POSIX
-   specifies should happen.
-
-   PERMUTE means permute the contents of ARGV as we scan, so that
-   eventually all the non-options are at the end.  This allows options
-   to be given in any order, even with programs that were not written
-   to expect this.
-
-   RETURN_IN_ORDER is an option available to programs that were
-   written to expect options and other ARGV-elements in any order
-   and that care about the ordering of the two.  We describe each
-   non-option ARGV-element as if it were the argument of an option
-   with character code 1.
-
-   The special argument '--' forces an end of option-scanning regardless
-   of the value of 'ordering'.  In the case of RETURN_IN_ORDER, only
-   '--' can cause 'getopt' to return -1 with 'optind' != ARGC.  */
-
-enum __ord
-  {
-    REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
-  };
-
 /* Data type for reentrant functions.  */
 struct _getopt_data
 {
@@ -83,17 +53,58 @@ struct _getopt_data
      by advancing to the next ARGV-element.  */
   char *__nextchar;
 
-  /* See __ord above.  */
+  /* Describe how to deal with options that follow non-option ARGV-elements.
-  enum __ord __ordering;
+
+     If the caller did not specify anything,
+     the default is REQUIRE_ORDER if the environment variable
+     POSIXLY_CORRECT is defined, PERMUTE otherwise.
+
+     REQUIRE_ORDER means don't recognize them as options;
+     stop option processing when the first non-option is seen.
+     This is what Unix does.
+     This mode of operation is selected by either setting the environment
+     variable POSIXLY_CORRECT, or using `+' as the first character
+     of the list of option characters, or by calling getopt.
+
+     PERMUTE is the default.  We permute the contents of ARGV as we
+     scan, so that eventually all the non-options are at the end.
+     This allows options to be given in any order, even with programs
+     that were not written to expect this.
+
+     RETURN_IN_ORDER is an option available to programs that were
+     written to expect options and other ARGV-elements in any order
+     and that care about the ordering of the two.  We describe each
+     non-option ARGV-element as if it were the argument of an option
+     with character code 1.  Using `-' as the first character of the
+     list of option characters selects this mode of operation.
+
+     The special argument `--' forces an end of option-scanning regardless
+     of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
+     `--' can cause `getopt' to return -1 with `optind' != ARGC.  */
+
+  enum
+    {
+      REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+    } __ordering;
+
+  /* If the POSIXLY_CORRECT environment variable is set
+     or getopt was called.  */
+  int __posixly_correct;
+
 
   /* Handle permutation of arguments.  */
 
   /* Describe the part of ARGV that contains non-options that have
-     been skipped.  'first_nonopt' is the index in ARGV of the first
+     been skipped.  `first_nonopt' is the index in ARGV of the first
-     of them; 'last_nonopt' is the index after the last of them.  */
+     of them; `last_nonopt' is the index after the last of them.  */
 
   int __first_nonopt;
   int __last_nonopt;
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+  int __nonoption_flags_max_len;
+  int __nonoption_flags_len;
+# endif
 };
 
 /* The initializer is necessary to set OPTIND and OPTERR to their
@@ -103,8 +114,8 @@ struct _getopt_data
 extern int _getopt_internal_r (int ___argc, char **___argv,
 			       const char *__shortopts,
 			       const struct option *__longopts, int *__longind,
-			       int __long_only, struct _getopt_data *__data,
+			       int __long_only, int __posixly_correct,
-			       int __posixly_correct);
+			       struct _getopt_data *__data);
 
 extern int _getopt_long_r (int ___argc, char **___argv,
 			   const char *__shortopts,

m4/.gitignore

@@ -1,4 +1,3 @@
-build-to-host.m4
 codeset.m4
 extern-inline.m4
 fcntl-o.m4

m4/ax_check_capsicum.m4

@@ -0,0 +1,85 @@
+# -*- Autoconf -*-
+
+# SYNOPSIS
+#
+#   AX_CHECK_CAPSICUM([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+#
+# DESCRIPTION
+#
+#   This macro searches for an installed Capsicum header and library,
+#   and if found:
+#     - AC_DEFINE([HAVE_CAPSICUM]) is called.
+#     - AC_DEFINE([HAVE_SYS_CAPSICUM_H]) is called if <sys/capsicum.h>
+#       is present (otherwise <sys/capability.h> must be used).
+#     - CAPSICUM_LIB is set to the -l option needed to link Capsicum support,
+#       and AC_SUBST([CAPSICUM_LIB]) is called.
+#     - The shell commands in ACTION-IF-FOUND are run. The default
+#       ACTION-IF-FOUND prepends ${CAPSICUM_LIB} into LIBS. If you don't
+#       want to modify LIBS and don't need to run any other commands either,
+#       use a colon as ACTION-IF-FOUND.
+#
+#   If Capsicum support isn't found:
+#     - The shell commands in ACTION-IF-NOT-FOUND are run. The default
+#       ACTION-IF-NOT-FOUND calls AC_MSG_WARN to print a warning that
+#       Capsicum support wasn't found.
+#
+#   You should use autoheader to include a definition for the symbols above
+#   in a config.h file.
+#
+#   Sample usage in a C/C++ source is as follows:
+#
+#     #ifdef HAVE_CAPSICUM
+#     # ifdef HAVE_SYS_CAPSICUM_H
+#     #  include <sys/capsicum.h>
+#     # else
+#     #  include <sys/capability.h>
+#     # endif
+#     #endif /* HAVE_CAPSICUM */
+#
+# LICENSE
+#
+#   Copyright (c) 2014 Google Inc.
+#   Copyright (c) 2015 Lasse Collin <lasse.collin@tukaani.org>
+#
+#   Copying and distribution of this file, with or without modification,
+#   are permitted in any medium without royalty provided the copyright
+#   notice and this notice are preserved.  This file is offered as-is,
+#   without any warranty.
+
+#serial 2
+
+AC_DEFUN([AX_CHECK_CAPSICUM], [
+# On FreeBSD >= 11.x and Linux, Capsicum is uses <sys/capsicum.h>.
+# If this header is found, it is assumed to be the right one.
+capsicum_header_found=no
+AC_CHECK_HEADERS([sys/capsicum.h], [capsicum_header_found=yes])
+if test "$capsicum_header_found" = no ; then
+    # On FreeBSD 10.x Capsicum uses <sys/capability.h>. Such a header exists
+    # on Linux too but it describes POSIX.1e capabilities. Look for the
+    # declaration of cap_rights_limit to check if <sys/capability.h> is
+    # a Capsicum header.
+    AC_CHECK_DECL([cap_rights_limit], [capsicum_header_found=yes], [],
+                  [#include <sys/capability.h>])
+fi
+
+capsicum_lib_found=no
+CAPSICUM_LIB=
+if test "$capsicum_header_found" = yes ; then
+    AC_LANG_PUSH([C])
+    # FreeBSD >= 10.x has Capsicum functions in libc.
+    AC_LINK_IFELSE([AC_LANG_CALL([], [cap_rights_limit])],
+                   [capsicum_lib_found=yes], [])
+    # Linux has Capsicum functions in libcaprights.
+    AC_CHECK_LIB([caprights], [cap_rights_limit],
+                 [CAPSICUM_LIB=-lcaprights
+                  capsicum_lib_found=yes], [])
+    AC_LANG_POP([C])
+fi
+AC_SUBST([CAPSICUM_LIB])
+
+if test "$capsicum_lib_found" = yes ; then
+    AC_DEFINE([HAVE_CAPSICUM], [1], [Define to 1 if Capsicum is available.])
+    m4_default([$1], [LIBS="${CAPSICUM_LIB} $LIBS"])
+else
+    m4_default([$2], [AC_MSG_WARN([Capsicum support not found])])
+fi])

m4/ax_pthread.m4

@@ -1,5 +1,3 @@
-dnl SPDX-License-Identifier: GPL-3.0-or-later WITH Autoconf-exception-macro
-
 # ===========================================================================
 #        https://www.gnu.org/software/autoconf-archive/ax_pthread.html
 # ===========================================================================

m4/getopt.m4

@@ -1,72 +1,71 @@
-dnl SPDX-License-Identifier: FSFULLR
+# getopt.m4 serial 14 (modified version)
-
+dnl Copyright (C) 2002-2006, 2008 Free Software Foundation, Inc.
-# getopt.m4 serial 49 (modified version)
-dnl Copyright (C) 2002-2006, 2008-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-# This version has been modified to reduce complexity since we only need
+# The getopt module assume you want GNU getopt, with getopt_long etc,
-# GNU getopt_long and do not care about replacing getopt.
+# rather than vanilla POSIX getopt.  This means your code should
+# always include <getopt.h> for the getopt prototypes.
 
-# Check for a POSIX compliant getopt function with GNU extensions (such as
+AC_DEFUN([gl_GETOPT_SUBSTITUTE],
-# options with optional arguments) and the functions getopt_long,
-# getopt_long_only.
-AC_DEFUN([gl_FUNC_GETOPT_GNU],
 [
-  AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+  AC_LIBOBJ([getopt])
+  AC_LIBOBJ([getopt1])
+  gl_GETOPT_SUBSTITUTE_HEADER
+])
 
-  if test -n "$gl_replace_getopt"; then
+AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
-    gl_GETOPT_SUBSTITUTE
+[
-  fi
+  GETOPT_H=getopt.h
+  AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
+    [Define to rpl_ if the getopt replacement functions and variables
+     should be used.])
+  AC_SUBST([GETOPT_H])
 ])
 
 AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
 [
-  gl_replace_getopt=
+  if test -z "$GETOPT_H"; then
-
+    AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
-  if test -z "$gl_replace_getopt"; then
-    AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes])
   fi
 
-  if test -z "$gl_replace_getopt"; then
+  if test -z "$GETOPT_H"; then
-    AC_CHECK_FUNCS([getopt_long], [], [gl_replace_getopt=yes])
+    AC_CHECK_FUNCS([getopt_long], [], [GETOPT_H=getopt.h])
   fi
 
   dnl BSD getopt_long uses a way to reset option processing, that is different
   dnl from GNU and Solaris (which copied the GNU behavior). We support both
   dnl GNU and BSD style resetting of getopt_long(), so there's no need to use
   dnl GNU getopt_long() on BSD due to different resetting style.
-  if test -z "$gl_replace_getopt"; then
+  dnl
+  dnl With getopt_long(), some BSD versions have a bug in handling optional
+  dnl arguments. This bug appears only if the environment variable
+  dnl POSIXLY_CORRECT has been set, so it shouldn't be too bad in most
+  dnl cases; probably most don't have that variable set. But if we actually
+  dnl hit this bug, it is a real problem due to our heavy use of optional
+  dnl arguments.
+  dnl
+  dnl According to CVS logs, the bug was introduced in OpenBSD in 2003-09-22
+  dnl and copied to FreeBSD in 2004-02-24. It was fixed in both in 2006-09-22,
+  dnl so the affected versions shouldn't be popular anymore anyway. NetBSD
+  dnl never had this bug. TODO: What about Darwin and others?
+  if test -z "$GETOPT_H"; then
     AC_CHECK_DECL([optreset],
       [AC_DEFINE([HAVE_OPTRESET], 1,
         [Define to 1 if getopt.h declares extern int optreset.])],
       [], [#include <getopt.h>])
   fi
 
-  dnl POSIX 2008 does not specify leading '+' behavior, but see
+  dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
-  dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on
+  dnl option string (as of 2005-05-05). We don't use that feature, so this
-  dnl the next version of POSIX.  We don't use that feature, so this
   dnl is not a problem for us. Thus, the respective test was removed here.
-
-  dnl Checks for getopt handling '-' as a leading character in an option
-  dnl string were removed, since we also don't use that feature.
-
 ])
 
-AC_DEFUN([gl_GETOPT_SUBSTITUTE],
+AC_DEFUN([gl_GETOPT_IFELSE],
 [
-  AC_LIBOBJ([getopt])
+  AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
-  AC_LIBOBJ([getopt1])
+  AS_IF([test -n "$GETOPT_H"], [$1], [$2])
-
-  AC_CHECK_HEADERS_ONCE([sys/cdefs.h])
-
-  AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
-    [Define to rpl_ if the getopt replacement functions and variables
-     should be used.])
-
-  GETOPT_H=getopt.h
-  AC_SUBST([GETOPT_H])
 ])
 
-AC_DEFUN([gl_GETOPT], [gl_FUNC_GETOPT_GNU])
+AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])

m4/posix-shell.m4

@@ -1,5 +1,3 @@
-dnl SPDX-License-Identifier: FSFULLR
-
 # Find a POSIX-conforming shell.
 
 # Copyright (C) 2007-2008 Free Software Foundation, Inc.

m4/tuklib_common.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -10,11 +7,13 @@
 #
 #   Common checks for tuklib.
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_COMMON], [
 AC_REQUIRE([AC_CANONICAL_HOST])

m4/tuklib_cpucores.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -20,11 +17,13 @@
 #       GetSystemInfo() is used on Cygwin)
 #     - pstat_getdynamic(): HP-UX
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_CPUCORES], [
 AC_REQUIRE([TUKLIB_COMMON])

m4/tuklib_integer.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -14,11 +11,13 @@
 #     - Does the hardware support fast unaligned access to 16-bit, 32-bit,
 #       and 64-bit integers
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_INTEGER], [
 AC_REQUIRE([TUKLIB_COMMON])
@@ -66,42 +65,22 @@ AC_MSG_CHECKING([if unaligned memory access should be used])
 AC_ARG_ENABLE([unaligned-access], AS_HELP_STRING([--enable-unaligned-access],
 		[Enable if the system supports *fast* unaligned memory access
 		with 16-bit, 32-bit, and 64-bit integers. By default,
-		this is enabled on x86, x86-64,
+		this is enabled only on x86, x86_64, big endian PowerPC,
-		32/64-bit big endian PowerPC,
+		and some ARM systems.]),
-		64-bit little endian PowerPC,
-		and some ARM, ARM64, and RISC-V systems.]),
 	[], [enable_unaligned_access=auto])
 if test "x$enable_unaligned_access" = xauto ; then
-	# NOTE: There might be other architectures on which unaligned access
+	# TODO: There may be other architectures, on which unaligned access
-	# is fast.
+	# is OK.
 	case $host_cpu in
-		i?86|x86_64|powerpc|powerpc64|powerpc64le)
+		i?86|x86_64|powerpc|powerpc64)
 			enable_unaligned_access=yes
 			;;
-		arm*|aarch64*|riscv*)
+		arm*|aarch64*)
 			# On 32-bit and 64-bit ARM, GCC and Clang
 			# #define __ARM_FEATURE_UNALIGNED if
 			# unaligned access is supported.
-			#
-			# Exception: GCC at least up to 13.2.0
-			# defines it even when using -mstrict-align
-			# so in that case this autodetection goes wrong.
-			# Most of the time -mstrict-align isn't used so it
-			# shouldn't be a common problem in practice. See:
-			# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
-			#
-			# RISC-V C API Specification says that if
-			# __riscv_misaligned_fast is defined then
-			# unaligned access is known to be fast.
-			#
-			# MSVC is handled as a special case: We assume that
-			# 32/64-bit ARM supports fast unaligned access.
-			# If MSVC gets RISC-V support then this will assume
-			# fast unaligned access on RISC-V too.
 			AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-#if !defined(__ARM_FEATURE_UNALIGNED) \
+#ifndef __ARM_FEATURE_UNALIGNED
-		&& !defined(__riscv_misaligned_fast) \
-		&& !defined(_MSC_VER)
 compile error
 #endif
 int main(void) { return 0; }

m4/tuklib_mbstr.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -18,11 +15,13 @@
 #   functions, but each function is put into a separate .c file so
 #   that it is possible to pick only what is strictly needed.
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_MBSTR], [
 AC_REQUIRE([TUKLIB_COMMON])

m4/tuklib_physmem.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -32,11 +29,13 @@
 #     - sysinfo() works on Linux/dietlibc and probably on other Linux
 #       systems whose libc may lack sysconf().
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_PHYSMEM], [
 AC_REQUIRE([TUKLIB_COMMON])

m4/tuklib_progname.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -14,16 +11,18 @@
 #   This .m4 file is needed allow this module to use glibc's
 #   program_invocation_name.
 #
-#############################################################################
+# COPYING
 #
 #   Author: Lasse Collin
 #
-#############################################################################
+#   This file has been put into the public domain.
+#   You can do whatever you want with this file.
+#
 
 AC_DEFUN_ONCE([TUKLIB_PROGNAME], [
 AC_REQUIRE([TUKLIB_COMMON])
 AC_CHECK_DECL([program_invocation_name], [AC_DEFINE(
 	[HAVE_PROGRAM_INVOCATION_NAME], [1],
-	[Define to 1 if 'program_invocation_name' is declared in <errno.h>.])],
+	[Define to 1 if `program_invocation_name' is declared in <errno.h>.])],
 	[], [#include <errno.h>])
 ])dnl

m4/visibility.m4

@@ -1,5 +1,3 @@
-dnl SPDX-License-Identifier: FSFULLR
-
 # visibility.m4 serial 8
 dnl Copyright (C) 2005, 2008, 2010-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation

macosx/build.sh

@@ -0,0 +1,113 @@
+#!/bin/sh
+
+###############################################################################
+# Author: Anders F Björklund <afb@users.sourceforge.net>
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+###############################################################################
+
+mkdir -p Root
+mkdir -p Resources
+
+# Abort immediately if something goes wrong.
+set -e
+
+GCC="gcc-4.2"
+SDK="/Developer/SDKs/MacOSX10.5.sdk"
+MDT="10.5"
+GTT=i686-apple-darwin9
+
+ARCHES1="-arch ppc -arch ppc64 -arch i386 -arch x86_64"
+ARCHES2="-arch ppc -arch i386"
+PKGFORMAT="10.5" # xar
+
+# avoid "unknown required load command: 0x80000022" from linking on Snow Leopard
+uname -r | grep ^1 >/dev/null && LDFLAGS="$LDFLAGS -Wl,-no_compact_linkedit"
+
+# Clean up if it was already configured.
+[ -f Makefile ] && make distclean
+
+# Build the regular fat program
+
+CC="$GCC" \
+CFLAGS="-O2 -g $ARCHES1 -isysroot $SDK -mmacosx-version-min=$MDT" \
+../configure --disable-dependency-tracking --disable-xzdec --disable-lzmadec $GTT
+
+make
+
+make check
+
+make DESTDIR=`pwd`/Root install
+
+make distclean
+
+# Build the size-optimized program
+
+CC="$GCC" \
+CFLAGS="-Os -g $ARCHES2 -isysroot $SDK -mmacosx-version-min=$MDT" \
+../configure --disable-dependency-tracking --disable-shared --disable-nls --disable-encoders --enable-small --disable-threads $GTT
+
+make -C src/liblzma
+make -C src/xzdec
+make -C src/xzdec DESTDIR=`pwd`/Root install
+
+cp -a ../extra Root/usr/local/share/doc/xz
+
+make distclean
+
+# Move development files to different package
+
+test -d liblzma && rm -r liblzma
+mkdir -p liblzma/usr/local
+
+mv Root/usr/local/include liblzma/usr/local
+mv Root/usr/local/lib liblzma/usr/local
+
+mkdir -p Root/usr/local/lib
+cp -p liblzma/usr/local/lib/liblzma.5.dylib Root/usr/local/lib
+mkdir -p liblzma/usr/local/share/doc/xz
+mv Root/usr/local/share/doc/xz/examples* liblzma/usr/local/share/doc/xz
+
+# Strip debugging symbols and make relocatable
+
+for bin in xz lzmainfo xzdec lzmadec; do
+    strip -S Root/usr/local/bin/$bin
+    install_name_tool -change /usr/local/lib/liblzma.5.dylib @executable_path/../lib/liblzma.5.dylib Root/usr/local/bin/$bin
+done
+
+for lib in liblzma.5.dylib; do
+    strip -S Root/usr/local/lib/$lib
+    install_name_tool -id @executable_path/../lib/liblzma.5.dylib Root/usr/local/lib/$lib
+done
+
+# Create tarball, but without the HFS+ attrib
+
+rmdir debug lib po src/liblzma/api src/liblzma src/lzmainfo src/scripts src/xz src/xzdec src tests
+
+( cd Root/usr/local; COPY_EXTENDED_ATTRIBUTES_DISABLE=true COPYFILE_DISABLE=true tar cvjf ../../../XZ.tbz * )
+( cd liblzma; COPY_EXTENDED_ATTRIBUTES_DISABLE=true COPYFILE_DISABLE=true tar cvjf ../liblzma.tbz ./usr/local )
+
+# Include documentation files for package
+
+cp -p ../README Resources/ReadMe.txt
+cp -p ../COPYING Resources/License.txt
+
+# Make an Installer.app package
+
+ID="org.tukaani.xz"
+VERSION=`cd ..; sh build-aux/version.sh`
+PACKAGEMAKER=/Developer/Applications/Utilities/PackageMaker.app/Contents/MacOS/PackageMaker
+$PACKAGEMAKER -r Root/usr/local -l /usr/local -e Resources -i $ID -n $VERSION -t XZ -o XZ.pkg -g $PKGFORMAT --verbose
+$PACKAGEMAKER -r liblzma -w -k -i $ID.liblzma -n $VERSION -o liblzma.pkg -g $PKGFORMAT --verbose
+
+# Put the package in a disk image
+
+if [ "$PKGFORMAT" != "10.5" ]; then
+hdiutil create -fs HFS+ -format UDZO -quiet -srcfolder XZ.pkg -ov XZ.dmg
+hdiutil internet-enable -yes -quiet XZ.dmg
+fi
+
+echo
+echo "Build completed successfully."
+echo

po/Makevars

@@ -1,10 +1,4 @@
-# SPDX-License-Identifier: FSFUL
-
 # Makefile variables for PO directory in any package using GNU gettext.
-#
-# Copyright (C) 2003-2019 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation gives
-# unlimited permission to use, copy, distribute, and modify it.
 
 # Usually the message domain is the same as the package name.
 DOMAIN = $(PACKAGE)
@@ -14,7 +8,7 @@ subdir = po
 top_builddir = ..
 
 # These options get passed to xgettext.
-XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --no-wrap --package-name='XZ Utils'
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
 
 # This is the copyright holder that gets inserted into the header of the
 # $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding
@@ -24,14 +18,7 @@ XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --no-wrap --package-name='XZ Utils'
 # or entity, or to disclaim their copyright.  The empty string stands for
 # the public domain; in this case the translators are expected to disclaim
 # their copyright.
-COPYRIGHT_HOLDER = The XZ Utils authors and contributors
+COPYRIGHT_HOLDER =
-
-# This tells whether or not to prepend "GNU " prefix to the package
-# name that gets inserted into the header of the $(DOMAIN).pot file.
-# Possible values are "yes", "no", or empty.  If it is empty, try to
-# detect it automatically by scanning the files in $(top_srcdir) for
-# "GNU packagename" string.
-PACKAGE_GNU = no
 
 # This is the email address or URL to which the translators shall report
 # bugs in the untranslated strings:
@@ -53,35 +40,7 @@ MSGID_BUGS_ADDRESS =
 # message catalogs shall be used.  It is usually empty.
 EXTRA_LOCALE_CATEGORIES =
 
-# This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
+# Although you may need slightly wider terminal than 80 chars, it is
-# context.  Possible values are "yes" and "no".  Set this to yes if the
+# much nicer to edit the output of --help when this is set.
-# package uses functions taking also a message context, like pgettext(), or
+XGETTEXT_OPTIONS += --no-wrap
-# if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
+MSGMERGE += --no-wrap
-USE_MSGCTXT = no
-
-# These options get passed to msgmerge.
-# Useful options are in particular:
-#   --previous            to keep previous msgids of translated messages,
-#   --quiet               to reduce the verbosity.
-MSGMERGE_OPTIONS = --no-wrap
-
-# These options get passed to msginit.
-# If you want to disable line wrapping when writing PO files, add
-# --no-wrap to MSGMERGE_OPTIONS, XGETTEXT_OPTIONS, and
-# MSGINIT_OPTIONS.
-#
-# Although one may need slightly wider terminal than 80 chars, it is
-# much nicer to edit the output of --help when --no-wrap is set.
-MSGINIT_OPTIONS = --no-wrap
-
-# This tells whether or not to regenerate a PO file when $(DOMAIN).pot
-# has changed.  Possible values are "yes" and "no".  Set this to no if
-# the POT file is checked in the repository and the version control
-# program ignores timestamps.
-PO_DEPENDS_ON_POT = yes
-
-# This tells whether or not to forcibly update $(DOMAIN).pot and
-# regenerate PO files on "make dist".  Possible values are "yes" and
-# "no".  Set this to no if the POT file and PO files are maintained
-# externally.
-DIST_DEPENDS_ON_UPDATE_PO = yes

po/POTFILES.in

@@ -1,5 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
 # List of source files which contain translatable strings.
 src/xz/args.c
 src/xz/coder.c
@@ -8,10 +6,8 @@ src/xz/hardware.c
 src/xz/list.c
 src/xz/main.c
 src/xz/message.c
-src/xz/mytime.c
 src/xz/options.c
 src/xz/signals.c
 src/xz/suffix.c
 src/xz/util.c
-src/lzmainfo/lzmainfo.c
 src/common/tuklib_exit.c

po/xz.pot-header

@@ -1,7 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-#
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) The XZ Utils authors and contributors
-# This file is published under the BSD Zero Clause License.
-# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-#

po/zh_CN.po

@@ -1,14 +1,14 @@
 # Chinese translations for xz package
 # xz 软件包的简体中文翻译。
 # This file is put in the public domain.
-# Boyuan Yang <073plan@gmail.com>, 2019, 2022, 2023, 2024.
+# Boyuan Yang <073plan@gmail.com>, 2019, 2022, 2023.
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: xz 5.6.0-pre1\n"
+"Project-Id-Version: xz 5.4.4-pre1\n"
 "Report-Msgid-Bugs-To: xz@tukaani.org\n"
-"POT-Creation-Date: 2024-01-26 19:40+0800\n"
+"POT-Creation-Date: 2023-07-18 23:34+0800\n"
-"PO-Revision-Date: 2024-02-05 15:15-0500\n"
+"PO-Revision-Date: 2023-07-19 14:24-0400\n"
 "Last-Translator: Boyuan Yang <073plan@gmail.com>\n"
 "Language-Team: Chinese (simplified) <i18n-zh@googlegroups.com>\n"
 "Language: zh_CN\n"
@@ -17,181 +17,144 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 "X-Bugs: Report translation errors to the Language-Team address.\n"
-"X-Generator: Poedit 3.4.2\n"
+"X-Generator: Poedit 3.2.2\n"
 
-#: src/xz/args.c:78
+#: src/xz/args.c:77
 #, c-format
 msgid "%s: Invalid argument to --block-list"
 msgstr "%s：--block-list 的无效参数"
 
-#: src/xz/args.c:88
+#: src/xz/args.c:87
 #, c-format
 msgid "%s: Too many arguments to --block-list"
 msgstr "%s：--block-list 得到过多参数"
 
-#: src/xz/args.c:125
+#: src/xz/args.c:116
-#, c-format
-msgid "In --block-list, block size is missing after filter chain number '%c:'"
-msgstr "在 --block-list 中，块大小在过滤器链编号 '%c:' 之后缺失"
-
-#: src/xz/args.c:151
 msgid "0 can only be used as the last element in --block-list"
 msgstr "0 仅可用于 --block-list 的最后一个元素"
 
-#: src/xz/args.c:540
+#: src/xz/args.c:451
 #, c-format
 msgid "%s: Unknown file format type"
 msgstr "%s：未知文件格式类型"
 
-#: src/xz/args.c:563 src/xz/args.c:571
+#: src/xz/args.c:474 src/xz/args.c:482
 #, c-format
 msgid "%s: Unsupported integrity check type"
 msgstr "%s：不支持的完整性检查类型"
 
-#: src/xz/args.c:607
+#: src/xz/args.c:518
-msgid "Only one file can be specified with '--files' or '--files0'."
+msgid "Only one file can be specified with `--files' or `--files0'."
-msgstr "仅可使用 '--files' 或 '--files0' 指定单个文件。"
+msgstr "仅可使用“--files”或“--files0”指定一个文件。"
 
 #. TRANSLATORS: This is a translatable
 #. string because French needs a space
 #. before the colon ("%s : %s").
-#: src/xz/args.c:622 src/xz/coder.c:1059 src/xz/coder.c:1075
+#: src/xz/args.c:533 src/xz/coder.c:691 src/xz/coder.c:707 src/xz/coder.c:967
-#: src/xz/coder.c:1375 src/xz/coder.c:1378 src/xz/file_io.c:686
+#: src/xz/coder.c:970 src/xz/file_io.c:605 src/xz/file_io.c:679
-#: src/xz/file_io.c:760 src/xz/file_io.c:850 src/xz/file_io.c:1021
+#: src/xz/file_io.c:769 src/xz/file_io.c:940 src/xz/list.c:369
-#: src/xz/list.c:369 src/xz/list.c:415 src/xz/list.c:477 src/xz/list.c:591
+#: src/xz/list.c:415 src/xz/list.c:477 src/xz/list.c:581 src/xz/list.c:590
-#: src/xz/list.c:600
 #, c-format
 msgid "%s: %s"
 msgstr "%s：%s"
 
-#: src/xz/args.c:678
+#: src/xz/args.c:589
 #, c-format
 msgid "The environment variable %s contains too many arguments"
 msgstr "环境变量 %s 包含过多参数"
 
-#: src/xz/args.c:780
+#: src/xz/args.c:691
 msgid "Compression support was disabled at build time"
 msgstr "压缩支持已在构建时禁用"
 
-#: src/xz/args.c:787
+#: src/xz/args.c:698
 msgid "Decompression support was disabled at build time"
 msgstr "解压支持已在构建时禁用"
 
-#: src/xz/args.c:793
+#: src/xz/args.c:704
 msgid "Compression of lzip files (.lz) is not supported"
 msgstr "不支持对 lzip 文件 (.lz) 的压缩"
 
-#: src/xz/args.c:815
+#: src/xz/args.c:735
-msgid "--block-list is ignored unless compressing to the .xz format"
-msgstr "除非压缩为 .xz 格式，--block-list 将被忽略"
-
-#: src/xz/args.c:828 src/xz/args.c:837
 msgid "With --format=raw, --suffix=.SUF is required unless writing to stdout"
 msgstr "启用 --format-raw 选项时，必须指定 --suffix=.SUF 获知写入至标准输出"
 
-#: src/xz/coder.c:141
+#: src/xz/coder.c:115
 msgid "Maximum number of filters is four"
 msgstr "过滤器最多数量为四"
 
-#: src/xz/coder.c:179
+#: src/xz/coder.c:134
-#, c-format
-msgid "Error in --filters%s=FILTERS option:"
-msgstr "在 --filters%s=过滤器 选项中出现错误："
-
-#: src/xz/coder.c:229
 msgid "Memory usage limit is too low for the given filter setup."
 msgstr "内存用量限制对指定过滤器设置过低。"
 
-#: src/xz/coder.c:244
+#: src/xz/coder.c:169
-#, c-format
-msgid "filter chain %u used by --block-list but not specified with --filters%u="
-msgstr "--block-list 使用了过滤器链 %u，但未经由 --filters%u= 指定"
-
-#: src/xz/coder.c:375
 msgid "Using a preset in raw mode is discouraged."
 msgstr "不推荐在 raw 模式使用预设等级。"
 
-#: src/xz/coder.c:377
+#: src/xz/coder.c:171
 msgid "The exact options of the presets may vary between software versions."
 msgstr "各个预设等级所使用的准确选项列表在不同软件版本之间可能不同。"
 
-#: src/xz/coder.c:403
+#: src/xz/coder.c:194
 msgid "The .lzma format supports only the LZMA1 filter"
 msgstr ".lzma 格式只支持 LZMA1 过滤器"
 
-#: src/xz/coder.c:411
+#: src/xz/coder.c:202
 msgid "LZMA1 cannot be used with the .xz format"
 msgstr "LZMA1 无法用于 .xz 格式"
 
-#: src/xz/coder.c:435
+#: src/xz/coder.c:219
-#, c-format
+msgid "The filter chain is incompatible with --flush-timeout"
-msgid "Filter chain %u is incompatible with --flush-timeout"
+msgstr "过滤器链和 --flush-timeout 不兼容"
-msgstr "过滤器链 %u 和 --flush-timeout 不兼容"
 
-#: src/xz/coder.c:444
+#: src/xz/coder.c:225
 msgid "Switching to single-threaded mode due to --flush-timeout"
 msgstr "因 --flush-timeout 而切换至单线程模式"
 
-#: src/xz/coder.c:485
+#: src/xz/coder.c:249
-#, c-format
-msgid "Unsupported options in filter chain %u"
-msgstr "过滤器链 %u 中存在不支持的选项"
-
-#: src/xz/coder.c:516
 #, c-format
 msgid "Using up to %<PRIu32> threads."
 msgstr "使用最多 %<PRIu32> 个线程。"
 
-#: src/xz/coder.c:532
+#: src/xz/coder.c:265
 msgid "Unsupported filter chain or filter options"
 msgstr "不支持的过滤器链或过滤器选项"
 
-#: src/xz/coder.c:553
+#: src/xz/coder.c:277
 #, c-format
 msgid "Decompression will need %s MiB of memory."
 msgstr "解压缩需要 %s MiB 的内存。"
 
-#: src/xz/coder.c:585
+#: src/xz/coder.c:309
 #, c-format
 msgid "Reduced the number of threads from %s to %s to not exceed the memory usage limit of %s MiB"
 msgstr "已将所使用的线程数从 %s 减小为 %s，以不超出 %s MiB 的内存用量限制"
 
-#: src/xz/coder.c:605
+#: src/xz/coder.c:329
 #, c-format
 msgid "Reduced the number of threads from %s to one. The automatic memory usage limit of %s MiB is still being exceeded. %s MiB of memory is required. Continuing anyway."
 msgstr "已将所使用的线程数从 %s 减小为 1。这仍然超出了自动的内存使用限制 %s MiB。需要 %s MiB 的内存。继续操作。"
 
-#: src/xz/coder.c:632
+#: src/xz/coder.c:356
 #, c-format
 msgid "Switching to single-threaded mode to not exceed the memory usage limit of %s MiB"
 msgstr "正在切换到单线程模式以不超出 %s MiB 的内存用量限制"
 
-#: src/xz/coder.c:757
+#: src/xz/coder.c:411
 #, c-format
 msgid "Adjusted LZMA%c dictionary size from %s MiB to %s MiB to not exceed the memory usage limit of %s MiB"
 msgstr "已调整 LZMA%c 字典大小（从 %s MiB 调整为 %s MiB），以不超出 %s MiB 的内存用量限制"
 
-#: src/xz/coder.c:767
+#: src/xz/file_io.c:110 src/xz/file_io.c:118
-#, fuzzy, c-format
-#| msgid "Adjusted LZMA%c dictionary size from %s MiB to %s MiB to not exceed the memory usage limit of %s MiB"
-msgid "Adjusted LZMA%c dictionary size for --filters%u from %s MiB to %s MiB to not exceed the memory usage limit of %s MiB"
-msgstr "已调整 LZMA%c 字典大小（从 %s MiB 调整为 %s MiB），以不超出 %s MiB 的内存用量限制"
-
-#: src/xz/coder.c:1141
-#, c-format
-msgid "Error changing to filter chain %u: %s"
-msgstr "更改为过滤器链 %u 时出错：%s"
-
-#: src/xz/file_io.c:137 src/xz/file_io.c:145
 #, c-format
 msgid "Error creating a pipe: %s"
 msgstr "创建管道时出错：%s"
 
-#: src/xz/file_io.c:333
+#: src/xz/file_io.c:252
 msgid "Failed to enable the sandbox"
 msgstr "沙盒启用失败"
 
-#: src/xz/file_io.c:375
+#: src/xz/file_io.c:294
 #, c-format
 msgid "%s: poll() failed: %s"
 msgstr "%s：poll() 失败：%s"
@@ -206,111 +169,111 @@ msgstr "%s：poll() 失败：%s"
 #. it is possible that the user has put a new file in place
 #. of the original file, and in that case it obviously
 #. shouldn't be removed.
-#: src/xz/file_io.c:442
+#: src/xz/file_io.c:361
 #, c-format
 msgid "%s: File seems to have been moved, not removing"
 msgstr "%s：文件似乎已移动，不再进行删除操作"
 
-#: src/xz/file_io.c:449 src/xz/file_io.c:1005
+#: src/xz/file_io.c:368 src/xz/file_io.c:924
 #, c-format
 msgid "%s: Cannot remove: %s"
 msgstr "%s：无法删除：%s"
 
-#: src/xz/file_io.c:475
+#: src/xz/file_io.c:394
 #, c-format
 msgid "%s: Cannot set the file owner: %s"
 msgstr "%s：无法设置文件所有者：%s"
 
-#: src/xz/file_io.c:488
+#: src/xz/file_io.c:407
 #, c-format
 msgid "%s: Cannot set the file group: %s"
 msgstr "%s：无法设置文件所有组：%s"
 
-#: src/xz/file_io.c:507
+#: src/xz/file_io.c:426
 #, c-format
 msgid "%s: Cannot set the file permissions: %s"
 msgstr "%s：无法设置文件权限：%s"
 
-#: src/xz/file_io.c:633
+#: src/xz/file_io.c:552
 #, c-format
 msgid "Error getting the file status flags from standard input: %s"
 msgstr "从标准输入获取文件状态标志出错：%s"
 
-#: src/xz/file_io.c:691 src/xz/file_io.c:753
+#: src/xz/file_io.c:610 src/xz/file_io.c:672
 #, c-format
 msgid "%s: Is a symbolic link, skipping"
 msgstr "%s：是符号链接，跳过"
 
-#: src/xz/file_io.c:782
+#: src/xz/file_io.c:701
 #, c-format
 msgid "%s: Is a directory, skipping"
 msgstr "%s：是目录，跳过"
 
-#: src/xz/file_io.c:788
+#: src/xz/file_io.c:707
 #, c-format
 msgid "%s: Not a regular file, skipping"
 msgstr "%s：不是标准文件，跳过"
 
-#: src/xz/file_io.c:805
+#: src/xz/file_io.c:724
 #, c-format
 msgid "%s: File has setuid or setgid bit set, skipping"
 msgstr "%s：文件有设置用户ID或设置组ID标识，跳过"
 
-#: src/xz/file_io.c:812
+#: src/xz/file_io.c:731
 #, c-format
 msgid "%s: File has sticky bit set, skipping"
 msgstr "%s：文件有粘滞位标识，跳过"
 
-#: src/xz/file_io.c:819
+#: src/xz/file_io.c:738
 #, c-format
 msgid "%s: Input file has more than one hard link, skipping"
 msgstr "%s：输入文件有多于一个硬链接，跳过"
 
-#: src/xz/file_io.c:861
+#: src/xz/file_io.c:780
 msgid "Empty filename, skipping"
 msgstr "空文件名，跳过"
 
-#: src/xz/file_io.c:915
+#: src/xz/file_io.c:834
 #, c-format
 msgid "Error restoring the status flags to standard input: %s"
 msgstr "回复标准输入的状态标志时出错：%s"
 
-#: src/xz/file_io.c:963
+#: src/xz/file_io.c:882
 #, c-format
 msgid "Error getting the file status flags from standard output: %s"
 msgstr "获取标准输出的文件状态标志时出错：%s"
 
-#: src/xz/file_io.c:1162
+#: src/xz/file_io.c:1060
 #, c-format
 msgid "Error restoring the O_APPEND flag to standard output: %s"
 msgstr "恢复标准输出的 O_APPEND 标志时出错：%s"
 
-#: src/xz/file_io.c:1174
+#: src/xz/file_io.c:1072
 #, c-format
 msgid "%s: Closing the file failed: %s"
 msgstr "%s：关闭文件失败：%s"
 
-#: src/xz/file_io.c:1210 src/xz/file_io.c:1472
+#: src/xz/file_io.c:1108 src/xz/file_io.c:1371
 #, c-format
 msgid "%s: Seeking failed when trying to create a sparse file: %s"
 msgstr "%s：尝试创建稀疏文件时 seek 失败：%s"
 
-#: src/xz/file_io.c:1310
+#: src/xz/file_io.c:1209
 #, c-format
 msgid "%s: Read error: %s"
 msgstr "%s：读取错误：%s"
 
-#: src/xz/file_io.c:1340
+#: src/xz/file_io.c:1239
 #, c-format
 msgid "%s: Error seeking the file: %s"
 msgstr "%s：seek 文件时出错：%s"
 
-#: src/xz/file_io.c:1364
+#: src/xz/file_io.c:1263
 #, c-format
 msgid "%s: Unexpected end of file"
 msgstr "%s：未预期的文件结束"
 
-#: src/xz/file_io.c:1423
+#: src/xz/file_io.c:1322
 #, c-format
 msgid "%s: Write error: %s"
 msgstr "%s：写入错误：%s"
@@ -529,63 +492,63 @@ msgstr "%s：过小而不是有效的 .xz 文件"
 #. to Ratio, the columns are right aligned. Check and Filename
 #. are left aligned. If you need longer words, it's OK to
 #. use two lines here. Test with "xz -l foo.xz".
-#: src/xz/list.c:741
+#: src/xz/list.c:731
 msgid "Strms  Blocks   Compressed Uncompressed  Ratio  Check   Filename"
 msgstr "   流      块     压缩大小     解压大小   比例  校验    文件名"
 
-#: src/xz/list.c:1036 src/xz/list.c:1214
+#: src/xz/list.c:1026 src/xz/list.c:1204
 msgid "Yes"
 msgstr "是"
 
-#: src/xz/list.c:1036 src/xz/list.c:1214
+#: src/xz/list.c:1026 src/xz/list.c:1204
 msgid "No"
 msgstr "否"
 
-#: src/xz/list.c:1038 src/xz/list.c:1216
+#: src/xz/list.c:1028 src/xz/list.c:1206
 #, c-format
 msgid "  Minimum XZ Utils version: %s\n"
 msgstr "  最低 XZ Utils 版本：%s\n"
 
 #. TRANSLATORS: %s is an integer. Only the plural form of this
 #. message is used (e.g. "2 files"). Test with "xz -l foo.xz bar.xz".
-#: src/xz/list.c:1189
+#: src/xz/list.c:1179
 #, c-format
 msgid "%s file\n"
 msgid_plural "%s files\n"
 msgstr[0] "%s 文件\n"
 
-#: src/xz/list.c:1202
+#: src/xz/list.c:1192
 msgid "Totals:"
 msgstr "总计："
 
-#: src/xz/list.c:1280
+#: src/xz/list.c:1270
 msgid "--list works only on .xz files (--format=xz or --format=auto)"
 msgstr "--list 仅适用于 .xz 文件（--format=xz 或 --format=auto）"
 
-#: src/xz/list.c:1286
+#: src/xz/list.c:1276
 msgid "--list does not support reading from standard input"
 msgstr "--list 不支持从标准输入读取"
 
-#: src/xz/main.c:96
+#: src/xz/main.c:89
 #, c-format
 msgid "%s: Error reading filenames: %s"
 msgstr "%s：读取文件名列表时出错：%s"
 
-#: src/xz/main.c:103
+#: src/xz/main.c:96
 #, c-format
 msgid "%s: Unexpected end of input when reading filenames"
 msgstr "%s：读取文件名列表时遇到未预期的输入结束"
 
-#: src/xz/main.c:127
+#: src/xz/main.c:120
 #, c-format
-msgid "%s: Null character found when reading filenames; maybe you meant to use '--files0' instead of '--files'?"
+msgid "%s: Null character found when reading filenames; maybe you meant to use `--files0' instead of `--files'?"
-msgstr "%s：读取文件名列表时获得了空字符；您可能想要使用 '--files0' 而非 '--files'？"
+msgstr "%s：读取文件名列表时获得了空字符；您可能想要使用“--files0”而非“--files”？"
 
-#: src/xz/main.c:207
+#: src/xz/main.c:188
 msgid "Compression and decompression with --robot are not supported yet."
 msgstr "尚不支持带 --robot 的压缩和解压缩。"
 
-#: src/xz/main.c:285
+#: src/xz/main.c:266
 msgid "Cannot read data from standard input when reading filenames from standard input"
 msgstr "无法同时从标准输入读取数据和文件名列表"
 
@@ -593,68 +556,68 @@ msgstr "无法同时从标准输入读取数据和文件名列表"
 #. of the line in messages. Usually it becomes "xz: ".
 #. This is a translatable string because French needs
 #. a space before a colon.
-#: src/xz/message.c:671 src/xz/message.c:726
+#: src/xz/message.c:670 src/xz/message.c:725
 #, c-format
 msgid "%s: "
 msgstr "%s："
 
-#: src/xz/message.c:798 src/xz/message.c:857
+#: src/xz/message.c:797 src/xz/message.c:856
 msgid "Internal error (bug)"
 msgstr "内部错误（bug）"
 
-#: src/xz/message.c:805
+#: src/xz/message.c:804
 msgid "Cannot establish signal handlers"
 msgstr "无法建立信号处理器"
 
-#: src/xz/message.c:814
+#: src/xz/message.c:813
 msgid "No integrity check; not verifying file integrity"
 msgstr "无完整性检查；将不验证文件完整性"
 
-#: src/xz/message.c:817
+#: src/xz/message.c:816
 msgid "Unsupported type of integrity check; not verifying file integrity"
 msgstr "不支持的完整性检查类型；将不验证文件完整性"
 
-#: src/xz/message.c:824
+#: src/xz/message.c:823
 msgid "Memory usage limit reached"
 msgstr "达到内存使用限制"
 
-#: src/xz/message.c:827
+#: src/xz/message.c:826
 msgid "File format not recognized"
 msgstr "无法识别文件格式"
 
-#: src/xz/message.c:830
+#: src/xz/message.c:829
 msgid "Unsupported options"
 msgstr "不支持的选项"
 
-#: src/xz/message.c:833
+#: src/xz/message.c:832
 msgid "Compressed data is corrupt"
 msgstr "压缩数据已损坏"
 
-#: src/xz/message.c:836
+#: src/xz/message.c:835
 msgid "Unexpected end of input"
 msgstr "输入意外结束"
 
-#: src/xz/message.c:878
+#: src/xz/message.c:877
 #, c-format
 msgid "%s MiB of memory is required. The limiter is disabled."
 msgstr "需要 %s MiB 的内存空间。限制已禁用。"
 
-#: src/xz/message.c:906
+#: src/xz/message.c:905
 #, c-format
 msgid "%s MiB of memory is required. The limit is %s."
 msgstr "需要 %s MiB 的内存空间。限制为 %s。"
 
-#: src/xz/message.c:925
+#: src/xz/message.c:924
 #, c-format
 msgid "%s: Filter chain: %s\n"
 msgstr "%s：过滤器链：%s\n"
 
-#: src/xz/message.c:936
+#: src/xz/message.c:935
 #, c-format
-msgid "Try '%s --help' for more information."
+msgid "Try `%s --help' for more information."
-msgstr "请尝试执行 '%s --help' 来获取更多信息。"
+msgstr "请尝试执行“%s --help”来获取更多信息。"
 
-#: src/xz/message.c:962
+#: src/xz/message.c:961
 #, c-format
 msgid ""
 "Usage: %s [OPTION]... [FILE]...\n"
@@ -665,15 +628,15 @@ msgstr ""
 "使用 .xz 格式压缩或解压缩文件。\n"
 "\n"
 
-#: src/xz/message.c:969
+#: src/xz/message.c:968
 msgid "Mandatory arguments to long options are mandatory for short options too.\n"
 msgstr "必选参数对长短选项同时适用。\n"
 
-#: src/xz/message.c:973
+#: src/xz/message.c:972
 msgid " Operation mode:\n"
 msgstr " 操作模式：\n"
 
-#: src/xz/message.c:976
+#: src/xz/message.c:975
 msgid ""
 "  -z, --compress      force compression\n"
 "  -d, --decompress    force decompression\n"
@@ -685,7 +648,7 @@ msgstr ""
 "  -t, --test          测试压缩文件完整性\n"
 "  -l, --list          列出 .xz 文件的信息"
 
-#: src/xz/message.c:982
+#: src/xz/message.c:981
 msgid ""
 "\n"
 " Operation modifiers:\n"
@@ -693,7 +656,7 @@ msgstr ""
 "\n"
 " 操作修饰符：\n"
 
-#: src/xz/message.c:985
+#: src/xz/message.c:984
 msgid ""
 "  -k, --keep          keep (don't delete) input files\n"
 "  -f, --force         force overwrite of output file and (de)compress links\n"
@@ -703,24 +666,16 @@ msgstr ""
 "  -f, --force         强制覆写输出文件和（解）压缩链接\n"
 "  -c, --stdout        向标准输出写入，同时不要删除输入文件"
 
-#: src/xz/message.c:994
+#: src/xz/message.c:993
 msgid ""
 "      --single-stream decompress only the first stream, and silently\n"
 "                      ignore possible remaining input data"
 msgstr "      --single-stream 仅解压缩第一个流，忽略其后可能继续出现的输入数据"
 
-#: src/xz/message.c:997
+#: src/xz/message.c:996
-#, fuzzy
-#| msgid ""
-#| "      --no-sparse     do not create sparse files when decompressing\n"
-#| "  -S, --suffix=.SUF   use the suffix `.SUF' on compressed files\n"
-#| "      --files[=FILE]  read filenames to process from FILE; if FILE is\n"
-#| "                      omitted, filenames are read from the standard input;\n"
-#| "                      filenames must be terminated with the newline character\n"
-#| "      --files0[=FILE] like --files but use the null character as terminator"
 msgid ""
 "      --no-sparse     do not create sparse files when decompressing\n"
-"  -S, --suffix=.SUF   use the suffix '.SUF' on compressed files\n"
+"  -S, --suffix=.SUF   use the suffix `.SUF' on compressed files\n"
 "      --files[=FILE]  read filenames to process from FILE; if FILE is\n"
 "                      omitted, filenames are read from the standard input;\n"
 "                      filenames must be terminated with the newline character\n"
@@ -732,7 +687,7 @@ msgstr ""
 "                      将从标准输入读取文件名列表；文件名必须使用换行符分隔\n"
 "      --files0[=文件] 类似 --files，但使用空字符进行分隔"
 
-#: src/xz/message.c:1006
+#: src/xz/message.c:1005
 msgid ""
 "\n"
 " Basic file format and compression options:\n"
@@ -740,18 +695,12 @@ msgstr ""
 "\n"
 " 基本文件格式和压缩选项：\n"
 
-#: src/xz/message.c:1008
+#: src/xz/message.c:1007
-#, fuzzy
-#| msgid ""
-#| "  -F, --format=FMT    file format to encode or decode; possible values are\n"
-#| "                      `auto' (default), `xz', `lzma', `lzip', and `raw'\n"
-#| "  -C, --check=CHECK   integrity check type: `none' (use with caution),\n"
-#| "                      `crc32', `crc64' (default), or `sha256'"
 msgid ""
 "  -F, --format=FMT    file format to encode or decode; possible values are\n"
-"                      'auto' (default), 'xz', 'lzma', 'lzip', and 'raw'\n"
+"                      `auto' (default), `xz', `lzma', `lzip', and `raw'\n"
-"  -C, --check=CHECK   integrity check type: 'none' (use with caution),\n"
+"  -C, --check=CHECK   integrity check type: `none' (use with caution),\n"
-"                      'crc32', 'crc64' (default), or 'sha256'"
+"                      `crc32', `crc64' (default), or `sha256'"
 msgstr ""
 "  -F, --format=格式   要编码或解码的文件格式；可能的值包括\n"
 "                      “auto”（默认）、“xz”、“lzma”、\n"
@@ -759,11 +708,11 @@ msgstr ""
 "  -C, --check=类型    完整性检查类型：“none”（请谨慎使用）、\n"
 "                      “crc32”、“crc64”（默认）或“sha256”"
 
-#: src/xz/message.c:1013
+#: src/xz/message.c:1012
 msgid "      --ignore-check  don't verify the integrity check when decompressing"
 msgstr "      --ignore-check  解压缩时不要进行完整性检查验证"
 
-#: src/xz/message.c:1017
+#: src/xz/message.c:1016
 msgid ""
 "  -0 ... -9           compression preset; default is 6; take compressor *and*\n"
 "                      decompressor memory usage into account before using 7-9!"
@@ -771,7 +720,7 @@ msgstr ""
 "  -0 ... -9           压缩预设等级；默认为 6；使用 7-9 的等级之前，请先考虑\n"
 "                      压缩和解压缩所需的内存用量！（会占用大量内存空间）"
 
-#: src/xz/message.c:1021
+#: src/xz/message.c:1020
 msgid ""
 "  -e, --extreme       try to improve compression ratio by using more CPU time;\n"
 "                      does not affect decompressor memory requirements"
@@ -779,19 +728,15 @@ msgstr ""
 "  -e, --extreme       尝试使用更多 CPU 时间来改进压缩比率；\n"
 "                      不会影响解压缩的内存需求量"
 
-#: src/xz/message.c:1025
+#: src/xz/message.c:1024
-#, fuzzy
-#| msgid ""
-#| "  -T, --threads=NUM   use at most NUM threads; the default is 1; set to 0\n"
-#| "                      to use as many threads as there are processor cores"
 msgid ""
-"  -T, --threads=NUM   use at most NUM threads; the default is 0 which uses\n"
+"  -T, --threads=NUM   use at most NUM threads; the default is 1; set to 0\n"
-"                      as many threads as there are processor cores"
+"                      to use as many threads as there are processor cores"
 msgstr ""
 "  -T, --threads=数量  使用最多指定数量的线程；默认值为 1；设置为 0\n"
 "                      可以使用与处理器内核数量相同的线程数"
 
-#: src/xz/message.c:1030
+#: src/xz/message.c:1029
 msgid ""
 "      --block-size=SIZE\n"
 "                      start a new .xz block after every SIZE bytes of input;\n"
@@ -801,24 +746,17 @@ msgstr ""
 "                      输入每读取指定块大小的数据后即开始一个新的 .xz 块；\n"
 "                      使用该选项可以设置多线程压缩中的块大小"
 
-#: src/xz/message.c:1034
+#: src/xz/message.c:1033
-#, fuzzy
-#| msgid ""
-#| "      --block-list=SIZES\n"
-#| "                      start a new .xz block after the given comma-separated\n"
-#| "                      intervals of uncompressed data"
 msgid ""
-"      --block-list=BLOCKS\n"
+"      --block-list=SIZES\n"
 "                      start a new .xz block after the given comma-separated\n"
-"                      intervals of uncompressed data; optionally, specify a\n"
+"                      intervals of uncompressed data"
-"                      filter chain number (0-9) followed by a ':' before the\n"
-"                      uncompressed data size"
 msgstr ""
 "      --block-list=块大小列表\n"
 "                      在所给出的未压缩数据间隔大小的数据之后开始一个新的\n"
 "                      .xz 块（使用逗号分隔）"
 
-#: src/xz/message.c:1040
+#: src/xz/message.c:1037
 msgid ""
 "      --flush-timeout=TIMEOUT\n"
 "                      when compressing, if more than TIMEOUT milliseconds has\n"
@@ -829,7 +767,7 @@ msgstr ""
 "                      进行压缩时，如果从上次刷洗输出之后经过了指定的超时时间\n"
 "                      且读取更多数据会被阻塞，则刷洗输出所有缓冲数据"
 
-#: src/xz/message.c:1046
+#: src/xz/message.c:1043
 #, no-c-format
 msgid ""
 "      --memlimit-compress=LIMIT\n"
@@ -848,13 +786,13 @@ msgstr ""
 "                      所指定限制量单位为字节，或以百分号 % 结尾表示内存比例，\n"
 "                      或者指定 0 取软件默认值"
 
-#: src/xz/message.c:1055
+#: src/xz/message.c:1052
 msgid ""
 "      --no-adjust     if compression settings exceed the memory usage limit,\n"
 "                      give an error instead of adjusting the settings downwards"
 msgstr "      --no-adjust     如果压缩设置超出内存用量限制，不调整设置而直接报错"
 
-#: src/xz/message.c:1061
+#: src/xz/message.c:1058
 msgid ""
 "\n"
 " Custom filter chain for compression (alternative for using presets):"
@@ -862,27 +800,7 @@ msgstr ""
 "\n"
 " 用于压缩的自定义过滤器链（不使用预设等级时的备选用法）："
 
-#: src/xz/message.c:1064
+#: src/xz/message.c:1067
-msgid ""
-"\n"
-"  --filters=FILTERS   set the filter chain using the liblzma filter string\n"
-"                      syntax; use --filters-help for more information"
-msgstr ""
-
-#: src/xz/message.c:1070
-msgid ""
-"  --filters1=FILTERS ... --filters9=FILTERS\n"
-"                      set additional filter chains using the liblzma filter\n"
-"                      string syntax to use with --block-list"
-msgstr ""
-
-#: src/xz/message.c:1076
-msgid ""
-"  --filters-help      display more information about the liblzma filter string\n"
-"                      syntax and exit."
-msgstr ""
-
-#: src/xz/message.c:1087
 msgid ""
 "\n"
 "  --lzma1[=OPTS]      LZMA1 or LZMA2; OPTS is a comma-separated list of zero or\n"
@@ -911,19 +829,7 @@ msgstr ""
 "                                   (hc3, hc4, bt2, bt3, bt4; bt4)\n"
 "                        depth=数字 最大搜索深度； 0=自动（默认）"
 
-#: src/xz/message.c:1102
+#: src/xz/message.c:1082
-#, fuzzy
-#| msgid ""
-#| "\n"
-#| "  --x86[=OPTS]        x86 BCJ filter (32-bit and 64-bit)\n"
-#| "  --arm[=OPTS]        ARM BCJ filter\n"
-#| "  --armthumb[=OPTS]   ARM-Thumb BCJ filter\n"
-#| "  --arm64[=OPTS]      ARM64 BCJ filter\n"
-#| "  --powerpc[=OPTS]    PowerPC BCJ filter (big endian only)\n"
-#| "  --ia64[=OPTS]       IA-64 (Itanium) BCJ filter\n"
-#| "  --sparc[=OPTS]      SPARC BCJ filter\n"
-#| "                      Valid OPTS for all BCJ filters:\n"
-#| "                        start=NUM  start offset for conversions (default=0)"
 msgid ""
 "\n"
 "  --x86[=OPTS]        x86 BCJ filter (32-bit and 64-bit)\n"
@@ -933,7 +839,6 @@ msgid ""
 "  --powerpc[=OPTS]    PowerPC BCJ filter (big endian only)\n"
 "  --ia64[=OPTS]       IA-64 (Itanium) BCJ filter\n"
 "  --sparc[=OPTS]      SPARC BCJ filter\n"
-"  --riscv[=OPTS]      RISC-V BCJ filter\n"
 "                      Valid OPTS for all BCJ filters:\n"
 "                        start=NUM  start offset for conversions (default=0)"
 msgstr ""
@@ -948,7 +853,7 @@ msgstr ""
 "                      所有过滤器可用选项：\n"
 "                        start=数字  转换的起始偏移量（默认=0）"
 
-#: src/xz/message.c:1116
+#: src/xz/message.c:1095
 msgid ""
 "\n"
 "  --delta[=OPTS]      Delta filter; valid OPTS (valid values; default):\n"
@@ -959,7 +864,7 @@ msgstr ""
 "  --delta[=选项]      增量过滤器；有效选项（有效值；默认值）：\n"
 "                        dist=NUM   相减的字节之间的距离 (1-256; 1)"
 
-#: src/xz/message.c:1124
+#: src/xz/message.c:1103
 msgid ""
 "\n"
 " Other options:\n"
@@ -967,7 +872,7 @@ msgstr ""
 "\n"
 " 其它选项：\n"
 
-#: src/xz/message.c:1127
+#: src/xz/message.c:1106
 msgid ""
 "  -q, --quiet         suppress warnings; specify twice to suppress errors too\n"
 "  -v, --verbose       be verbose; specify twice for even more verbose"
@@ -975,21 +880,21 @@ msgstr ""
 "  -q, --quiet         不显示警告信息；指定两次可不显示错误信息\n"
 "  -v, --verbose       输出详细信息；指定两次可以输出更详细的信息"
 
-#: src/xz/message.c:1132
+#: src/xz/message.c:1111
 msgid "  -Q, --no-warn       make warnings not affect the exit status"
 msgstr "  -Q, --no-warn       使得警告信息不影响程序退出返回值"
 
-#: src/xz/message.c:1134
+#: src/xz/message.c:1113
 msgid "      --robot         use machine-parsable messages (useful for scripts)"
 msgstr "      --robot         使用机器可解析的信息（对于脚本有用）"
 
-#: src/xz/message.c:1137
+#: src/xz/message.c:1116
 msgid ""
 "      --info-memory   display the total amount of RAM and the currently active\n"
 "                      memory usage limits, and exit"
 msgstr "      --info-memory   显示 RAM 总量和当前配置的内存用量限制，然后退出"
 
-#: src/xz/message.c:1140
+#: src/xz/message.c:1119
 msgid ""
 "  -h, --help          display the short help (lists only the basic options)\n"
 "  -H, --long-help     display this long help and exit"
@@ -997,7 +902,7 @@ msgstr ""
 "  -h, --help          显示短帮助信息（仅列出基本选项）\n"
 "  -H, --long-help     显示本长帮助信息"
 
-#: src/xz/message.c:1144
+#: src/xz/message.c:1123
 msgid ""
 "  -h, --help          display this short help and exit\n"
 "  -H, --long-help     display the long help (lists also the advanced options)"
@@ -1005,11 +910,11 @@ msgstr ""
 "  -h, --help          显示本短帮助信息并退出\n"
 "  -H, --long-help     显示长帮助信息（同时列出高级选项）"
 
-#: src/xz/message.c:1149
+#: src/xz/message.c:1128
 msgid "  -V, --version       display the version number and exit"
 msgstr "  -V, --version       显示软件版本号并退出"
 
-#: src/xz/message.c:1151
+#: src/xz/message.c:1130
 msgid ""
 "\n"
 "With no FILE, or when FILE is -, read standard input.\n"
@@ -1021,7 +926,7 @@ msgstr ""
 #. for this package. Please add _another line_ saying
 #. "Report translation bugs to <...>\n" with the email or WWW
 #. address for translation bugs. Thanks.
-#: src/xz/message.c:1157
+#: src/xz/message.c:1136
 #, c-format
 msgid "Report bugs to <%s> (in English or Finnish).\n"
 msgstr ""
@@ -1029,33 +934,19 @@ msgstr ""
 "请使用中文向 TP 简体中文翻译团队 <i18n-zh@googlegroups.com>\n"
 "报告软件的简体中文翻译错误。\n"
 
-#: src/xz/message.c:1159
+#: src/xz/message.c:1138
 #, c-format
 msgid "%s home page: <%s>\n"
 msgstr "%s 主页：<%s>\n"
 
-#: src/xz/message.c:1163
+#: src/xz/message.c:1142
 msgid "THIS IS A DEVELOPMENT VERSION NOT INTENDED FOR PRODUCTION USE."
 msgstr "这是开发版本，不适用于生产环境使用。"
 
-#: src/xz/message.c:1180
-msgid ""
-"Filter chains are set using the --filters=FILTERS or\n"
-"--filters1=FILTERS ... --filters9=FILTERS options. Each filter in the chain\n"
-"can be separated by spaces or '--'. Alternatively a preset <0-9>[e] can be\n"
-"specified instead of a filter chain.\n"
-msgstr ""
-
-#: src/xz/message.c:1186
-#, fuzzy
-#| msgid "Unsupported filter chain or filter options"
-msgid "The supported filters and their options are:"
-msgstr "不支持的过滤器链或过滤器选项"
-
 #: src/xz/options.c:86
 #, c-format
-msgid "%s: Options must be 'name=value' pairs separated with commas"
+msgid "%s: Options must be `name=value' pairs separated with commas"
-msgstr "%s：选项必须按照 '名称=值' 的格式成对出现，使用半角逗号分隔"
+msgstr "%s：选项必须按照“名称=值”的格式成对出现，使用半角逗号分隔"
 
 #: src/xz/options.c:93
 #, c-format
@@ -1067,57 +958,54 @@ msgstr "%s：无效的选项名称"
 msgid "%s: Invalid option value"
 msgstr "%s：无效的选项值"
 
-#: src/xz/options.c:248
+#: src/xz/options.c:247
 #, c-format
 msgid "Unsupported LZMA1/LZMA2 preset: %s"
 msgstr "不支持的 LZMA1/LZMA2 预设等级：%s"
 
-#: src/xz/options.c:356
+#: src/xz/options.c:355
 msgid "The sum of lc and lp must not exceed 4"
 msgstr "lc 和 lp 的和必须不大于 4"
 
-#: src/xz/suffix.c:166
+#: src/xz/suffix.c:160
 #, c-format
 msgid "%s: Filename has an unknown suffix, skipping"
 msgstr "%s：文件名有未知后缀，跳过"
 
-#: src/xz/suffix.c:187
+#: src/xz/suffix.c:181
 #, c-format
-msgid "%s: File already has '%s' suffix, skipping"
+msgid "%s: File already has `%s' suffix, skipping"
-msgstr "%s：文件已有 '%s' 后缀名，跳过"
+msgstr "%s：文件已有“%s”后缀名，跳过"
 
-#: src/xz/suffix.c:394
+#: src/xz/suffix.c:388
 #, c-format
 msgid "%s: Invalid filename suffix"
 msgstr "%s：无效的文件名后缀"
 
-#: src/xz/util.c:107
+#: src/xz/util.c:71
 #, c-format
 msgid "%s: Value is not a non-negative decimal integer"
 msgstr "%s：值不是非负十进制整数"
 
-#: src/xz/util.c:149
+#: src/xz/util.c:113
 #, c-format
 msgid "%s: Invalid multiplier suffix"
 msgstr "%s：无效的乘数后缀"
 
-#: src/xz/util.c:151
+#: src/xz/util.c:115
-#, fuzzy
+msgid "Valid suffixes are `KiB' (2^10), `MiB' (2^20), and `GiB' (2^30)."
-#| msgid "Valid suffixes are `KiB' (2^10), `MiB' (2^20), and `GiB' (2^30)."
-msgid "Valid suffixes are 'KiB' (2^10), 'MiB' (2^20), and 'GiB' (2^30)."
 msgstr "有效的后缀包括“KiB”（2^10）、“MiB”（2^20）和“GiB”（2^30）。"
 
-#: src/xz/util.c:168
+#: src/xz/util.c:132
-#, fuzzy, c-format
+#, c-format
-#| msgid "Value of the option `%s' must be in the range [%<PRIu64>, %<PRIu64>]"
+msgid "Value of the option `%s' must be in the range [%<PRIu64>, %<PRIu64>]"
-msgid "Value of the option '%s' must be in the range [%<PRIu64>, %<PRIu64>]"
 msgstr "选项“%s”的值必须位于 [%<PRIu64>, %<PRIu64>] 范围内"
 
-#: src/xz/util.c:291
+#: src/xz/util.c:269
 msgid "Compressed data cannot be read from a terminal"
 msgstr "压缩数据不能从终端读取"
 
-#: src/xz/util.c:304
+#: src/xz/util.c:282
 msgid "Compressed data cannot be written to a terminal"
 msgstr "压缩数据不能向终端写入"
 

po4a/.gitignore

@@ -1,3 +1,2 @@
 /man
 /xz-man.pot
-/*.po.authors

po4a/po4a.conf

@@ -1,5 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
 # To add a new language, add it to po4a_langs and run "update-po"
 # to get a new .po file. After translating the .po file, run
 # "update-po" again to generate the translated man pages.
@@ -7,10 +5,10 @@
 [po4a_langs] de fr ko pt_BR ro uk
 [po4a_paths] xz-man.pot $lang:$lang.po
 
-[type: man] ../src/xz/xz.1              $lang:man/$lang/xz.1        add_$lang:?$lang.po.authors
+[type: man] ../src/xz/xz.1              $lang:man/$lang/xz.1
-[type: man] ../src/xzdec/xzdec.1        $lang:man/$lang/xzdec.1     add_$lang:?$lang.po.authors
+[type: man] ../src/xzdec/xzdec.1        $lang:man/$lang/xzdec.1
-[type: man] ../src/lzmainfo/lzmainfo.1  $lang:man/$lang/lzmainfo.1  add_$lang:?$lang.po.authors
+[type: man] ../src/lzmainfo/lzmainfo.1  $lang:man/$lang/lzmainfo.1
-[type: man] ../src/scripts/xzdiff.1     $lang:man/$lang/xzdiff.1    add_$lang:?$lang.po.authors
+[type: man] ../src/scripts/xzdiff.1     $lang:man/$lang/xzdiff.1
-[type: man] ../src/scripts/xzgrep.1     $lang:man/$lang/xzgrep.1    add_$lang:?$lang.po.authors
+[type: man] ../src/scripts/xzgrep.1     $lang:man/$lang/xzgrep.1
-[type: man] ../src/scripts/xzless.1     $lang:man/$lang/xzless.1    add_$lang:?$lang.po.authors
+[type: man] ../src/scripts/xzless.1     $lang:man/$lang/xzless.1
-[type: man] ../src/scripts/xzmore.1     $lang:man/$lang/xzmore.1    add_$lang:?$lang.po.authors
+[type: man] ../src/scripts/xzmore.1     $lang:man/$lang/xzmore.1