Bump version and soname for 5.2.12.

Wrong line was changed in 7062348bf3.
Also, this has >= instead of == since ints larger than 32 bits would
work too even if not relevant in practice.

.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

@@ -6,8 +6,6 @@
 .deps
 .libs
 *.a
-*.gcda
-*.gcno
 *.la
 *.lo
 *.o
@@ -25,7 +23,6 @@ Makefile.in
 /libtool
 /stamp-h1
 
-build-aux/artifacts
 build-aux/compile
 build-aux/config.guess
 build-aux/config.rpath
@@ -36,10 +33,7 @@ build-aux/ltmain.sh
 build-aux/missing
 build-aux/test-driver
 
-coverage
-
-/doc/internal
-/doc/api
+/doc/html
 
 /src/liblzma/liblzma.pc
 /src/lzmainfo/lzmainfo
@@ -52,8 +46,6 @@ coverage
 /src/scripts/xzless
 /src/scripts/xzmore
 
-/tests/*.log
-/tests/*.trs
 /tests/compress_generated_abc
 /tests/compress_generated_random
 /tests/compress_generated_text
@@ -62,15 +54,8 @@ coverage
 /tests/test_block_header
 /tests/test_check
 /tests/test_filter_flags
-/tests/test_filter_str
-/tests/test_hardware
 /tests/test_index
-/tests/test_index_hash
-/tests/test_lzip_decoder
-/tests/test_microlzma
-/tests/test_memlimit
 /tests/test_stream_flags
-/tests/test_vli
 /tests/xzgrep_test_1.xz
 /tests/xzgrep_test_2.xz
 /tests/xzgrep_test_output
@@ -108,7 +93,3 @@ coverage
 /xzcat
 /xzcat.1
 /xzdec
-
-/windows/*/.vs
-/windows/*/liblzma.vcxproj.user
-/.vscode/

AUTHORS

@@ -9,45 +9,23 @@ 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
-    Wei Dai in Crypto++ Library <https://www.cryptopp.com/>.
+    The SHA-256 implementation in liblzma is based on the code found from
+    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
-    versions were written by Jean-loup Gailly, Charles Levert, and
-    Paul Eggert. Andrew Dudman helped adapting the scripts and their
-    man pages for XZ Utils.
-
-    The initial version of the threaded .xz decompressor was written
-    by Sebastian Andrzej Siewior.
-
-    The initial version of the .lz (lzip) decoder was written
-    by Michał Górny.
-
-    Architecture-specific CRC optimizations were contributed by
-    Ilya Kurdyukov, Hans Jansen, and Chenxi Mao.
+    Some scripts have been adapted from gzip. The original versions
+    were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
+    Andrew Dudman helped adapting the scripts and their man pages for
+    XZ Utils.
 
     Other authors:
       - Jonathan Nieder
       - Joachim Henke
 
-    Many people have contributed improvements or reported bugs.
-    Most of these people are mentioned in the file THANKS.
+    The GNU Autotools-based build system contains files from many authors,
+    which I'm not trying to list here.
 
-    The translations of the command line tools and man pages have been
-    contributed by many people via the Translation Project:
-
-      - 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.
+    Several people have contributed fixes or reported bugs. Most of them
+    are mentioned in the file THANKS.
 

COPYING

@@ -6,95 +6,60 @@ 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
-        under 0BSD except that, on systems that don't have a usable
-        getopt_long, GNU getopt_long is compiled and linked in from the
-        'lib' directory. The getopt_long code is under GNU LGPLv2.1+.
+      - xz, xzdec, and lzmadec command line tools are in the public
+        domain unless GNU getopt_long had to be compiled and linked
+        in from the lib directory. The getopt_long code is under
+        GNU LGPLv2.1+.
 
       - The scripts to grep, diff, and view compressed files have been
-        adapted from GNU gzip. These scripts (xzgrep, xzdiff, xzless,
-        and xzmore) are under GNU GPLv2+. The man pages of the scripts
-        are under 0BSD; they aren't based on the man pages of GNU gzip.
+        adapted from gzip. These scripts and their documentation are
+        under GNU GPLv2+.
 
-      - Most of the XZ Utils specific documentation that is in
-        plain text files (like README, INSTALL, PACKAGERS, NEWS,
-        and ChangeLog) are under 0BSD unless stated otherwise in
-        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.
+      - All the documentation in the doc directory and most of the
+        XZ Utils specific documentation files in other directories
+        are in the public domain.
 
-      - 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:
+      - Translated messages are in the public domain.
 
-            Documents produced by doxygen are derivative works
-            derived from the input used in their production;
-            they are not affected by this license.
+      - The build system contains public domain files, and files that
+        are under GNU GPLv2+ or GNU GPLv3+. None of these files end up
+        in the binaries being built.
 
-        Note: The JavaScript files (under the MIT license) have
-        been removed from the Doxygen output.
+      - Test files and test code in the tests directory, and debugging
+        utilities in the debug directory are in the public domain.
 
-      - The XZ logo (xz-logo.png) included in the Doxygen-generated
-        documentation is under the Creative Commons BY-SA 4.0 license.
+      - The extra directory may contain public domain files, and files
+        that are under various free software licenses.
 
-      - Translated messages and man pages are under 0BSD except that
-        some old translations are in the public domain.
+    You can do whatever you want with the files that have been put into
+    the public domain. If you find public domain legally problematic,
+    take the previous sentence as a license grant. If you still find
+    the lack of copyright legally problematic, you have too many
+    lawyers.
 
-      - Test files and test code in the 'tests' directory, and
-        debugging utilities in the 'debug' directory are under
-        the BSD Zero Clause License (0BSD).
+    As usual, this software is provided "as is", without any warranty.
 
-      - The GNU Autotools based build system contains files that are
-        under GNU GPLv2+, GNU GPLv3+, and a few permissive licenses.
-        These files don't affect the licensing of the binaries being
-        built.
-
-      - The extra directory contain files that are under various
-        free software licenses.
-
-    For the files under the BSD Zero Clause License (0BSD), if
-    a copyright notice is needed, the following is sufficient:
-
-        Copyright (C) The XZ Utils authors and contributors
-
-    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
-    of a good notice to put into "about box" or into documentation:
+    naturally it is not legally required. Here is an example of a good
+    notice to put into "about box" or into documentation:
 
-        This software includes code from XZ Utils
-        <https://xz.tukaani.org/xz-utils/>.
+        This software includes code from XZ Utils <https://tukaani.org/xz/>.
 
     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
-        significant amount of code put into the public domain and
-        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.
+    If you have questions, don't hesitate to ask the author(s) for more
+    information.
 

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 @@
-Attribution-ShareAlike 4.0 International
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ChangeLog

@@ -1,6 +1,6 @@
 See the commit log in the git repository:
 
-    git clone https://github.com/tukaani-project/xz
+    git clone https://git.tukaani.org/xz.git
 
 Note that "make dist" doesn't put this tiny file into the package.
 Instead, the git commit log is used as ChangeLog. See dist-hook in

INSTALL

@@ -22,16 +22,13 @@ XZ Utils Installation
     3. xzgrep and other scripts
        3.1. Dependencies
        3.2. PATH
-    4. Tests
-       4.1 Testing in parallel
-       4.2 Cross compiling
-    5. Troubleshooting
-       5.1. "No C99 compiler was found."
-       5.2. "No POSIX conforming shell (sh) was found."
-       5.3. configure works but build fails at crc32_x86.S
-       5.4. Lots of warnings about symbol visibility
-       5.5. "make check" fails
-       5.6. liblzma.so (or similar) not found when running xz
+    4. Troubleshooting
+       4.1. "No C99 compiler was found."
+       4.2. "No POSIX conforming shell (sh) was found."
+       4.3. configure works but build fails at crc32_x86.S
+       4.4. Lots of warnings about symbol visibility
+       4.5. "make check" fails
+       4.6. liblzma.so (or similar) not found when running xz
 
 
 0. Preface
@@ -103,7 +100,7 @@ XZ Utils Installation
     XZ Utils doesn't have code to detect the amount of physical RAM and
     number of CPU cores on MINIX 3.
 
-    See section 5.4 in this file about symbol visibility warnings (you
+    See section 4.4 in this file about symbol visibility warnings (you
     may want to pass gl_cv_cc_visibility=no to configure).
 
 
@@ -130,50 +127,58 @@ XZ Utils Installation
     missing from PATH (/usr/xpg4/bin or /usr/xpg6/bin). Nowadays
     /usr/xpg4/bin is added to the script PATH by default on Solaris
     (see --enable-path-for-scripts=PREFIX in section 2), but old xz
-    releases needed extra steps. See sections 5.5 and 3.2 for more
+    releases needed extra steps. See sections 4.5 and 3.2 for more
     information.
 
 
 1.2.6. Tru64
 
     If you try to use the native C compiler on Tru64 (passing CC=cc to
-    configure), you may need the workaround mention in section 5.1 in
+    configure), you may need the workaround mention in section 4.1 in
     this file (pass also ac_cv_prog_cc_c99= to configure).
 
 
 1.2.7. Windows
 
-    The "windows" directory contains instructions for a few types
-    of builds:
+    If it is enough to build liblzma (no command line tools):
 
-      - INSTALL-MinGW-w64_with_CMake.txt
-                Simple instructions how to build XZ Utils natively on
-                Windows using only CMake and a prebuilt toolchain
-                (GCC + MinGW-w64 or Clang/LLVM + MinGW-w64).
+      - There is experimental CMake support. As it is, it should be
+        good enough to build static liblzma with Visual Studio.
+        Building liblzma.dll might work too (if it doesn't, it should
+        be fixed). The CMake support may work with MinGW or MinGW-w64.
+        Read the comment in the beginning of CMakeLists.txt before
+        running CMake!
 
-      - INSTALL-MinGW-w64_with_Autotools.txt
-                Native build under MSYS2 or cross-compilation from
-                GNU/Linux using a bash script that creates a .zip
-                and .7z archives of the binaries and documentation.
-                The related file README-Windows.txt is for the
-                resulting binary package.
+      - There are Visual Studio project files under the "windows"
+        directory. See windows/INSTALL-MSVC.txt. In the future the
+        project files will be removed when CMake support is good
+        enough. Thus, please test the CMake version and help fix
+        possible issues.
 
-      - INSTALL-MSVC.txt
-                Building with MSVC / Visual Studio and CMake.
+    To build also the command line tools:
 
-      - liblzma-crt-mixing.txt
-                Documentation what to take into account as a programmer
-                if liblzma.dll and the application don't use the same
-                CRT (MSVCRT or UCRT).
+      - MinGW-w64 + MSYS (32-bit and 64-bit x86): This is used
+        for building the official binary packages for Windows.
+        There is windows/build.bash to ease packaging XZ Utils with
+        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/
-        Building on Cygwin can be done like on many POSIX operating
-        systems. XZ Utils >= 5.2.0 isn't compatible with Cygwin older
-        than 1.7.35 (data loss!). 1.7.35 was released on 2015-03-04.
+      - Cygwin 1.7.35 and later: NOTE that using XZ Utils >= 5.2.0
+        under Cygwin older than 1.7.35 can lead to DATA LOSS! If
+        you must use an old Cygwin version, stick to XZ Utils 5.0.x
+        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
@@ -311,18 +316,6 @@ XZ Utils Installation
                             | xz -v -0 -Csha256 > foo.xz
                         time xz --test foo.xz
 
-    --disable-microlzma
-                Don't build MicroLZMA encoder and decoder. This omits
-                lzma_microlzma_encoder() and lzma_microlzma_decoder()
-                API functions from liblzma. These functions are needed
-                by specific applications only. They were written for
-                erofs-utils but they may be used by others too.
-
-    --disable-lzip-decoder
-                Disable decompression support for .lz (lzip) files.
-                This omits the API function lzma_lzip_decoder() from
-                liblzma and .lz support from the xz tool.
-
     --disable-xz
     --disable-xzdec
     --disable-lzmadec
@@ -353,102 +346,28 @@ XZ Utils Installation
                 with --docdir=DIR.
 
     --disable-assembler
-                This disables CRC32 and CRC64 assembly code on
-                32-bit x86. This option currently does nothing
-                on other architectures (not even on x86-64).
+                liblzma includes some assembler optimizations. Currently
+                there is only assembler code for CRC32 and CRC64 for
+                32-bit x86.
 
-                The 32-bit x86 assembly is position-independent code
-                which is suitable for use in shared libraries and
-                position-independent executables. It uses only i386
-                instructions but the code is optimized for i686 class
-                CPUs. If you are compiling liblzma exclusively for
+                All the assembler code in liblzma is position-independent
+                code, which is suitable for use in shared libraries and
+                position-independent executables. So far only i386
+                instructions are used, but the code is optimized for i686
+                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
-                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
-                is used only if --disable-assembler is used (this might
-                be fixed in the future). The code works on E2K too.
-
-                If using compiler options that unconditionally allow the
-                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
-                enabled only when the hardware supports this, that is,
-                when unaligned access is fast. Some operating system
-                kernels emulate unaligned access, which is extremely
-                slow. This option shouldn't be used on systems that
-                rely on such emulation.
+                Allow liblzma to use unaligned memory access for 16-bit
+                and 32-bit loads and stores. This should be enabled only
+                when the hardware supports this, i.e. when unaligned
+                access is fast. Some operating system kernels emulate
+                unaligned access, which is extremely slow. This option
+                shouldn't be used on systems that rely on such emulation.
 
-                Unaligned access is enabled by default on these:
-                  - 32-bit x86
-                  - 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
-
-                    uint8_t *buf8 = ...;
-                    *(uint32_t *)buf8 = ...;
-
-                which violates strict aliasing rules and may result
-                in broken code. There should be no need to use this
-                option with recent GCC or Clang versions on any
-                arch as just as fast code can be generated in a safe
-                way too (using __builtin_assume_aligned + memcpy).
-
-                However, this option might improve performance in some
-                other cases, especially with old compilers (for example,
-                GCC 3 and early 4.x on x86, GCC < 6 on ARMv6 and ARMv7).
+                Unaligned access is enabled by default on x86, x86-64,
+                and big endian PowerPC.
 
     --enable-small
                 Reduce the size of liblzma by selecting smaller but
@@ -497,109 +416,49 @@ XZ Utils Installation
                         win95   Use Windows 95 compatible threads. This
                                 is compatible with Windows XP and later
                                 too. This is the default for 32-bit x86
-                                Windows builds. Unless the compiler
-                                supports __attribute__((__constructor__)),
-                                the 'win95' threading is incompatible with
-                                --enable-small.
+                                Windows builds. 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.
-                                NOTE: If combined with --enable-small
-                                and the compiler doesn't support
-                                __attribute__((__constructor__)), the
+                                NOTE: If combined with --enable-small, the
                                 resulting liblzma won't be thread safe,
                                 that is, if a multi-threaded application
                                 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
-                tools. If built with sandbox support, xz uses it
-                automatically when (de)compressing exactly one file to
-                standard output when the options --files or --files0 aren't
-                used. This is a common use case, for example,
-                (de)compressing .tar.xz files via GNU tar. The sandbox is
-                also used for 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.
+                There is limited sandboxing support in the xz tool. If
+                built with sandbox support, it's used automatically when
+                (de)compressing exactly one file to standard output and
+                the options --files or --files0 weren't used. This is a
+                common use case, for example, (de)compressing .tar.xz
+                files via GNU tar. The sandbox is also used for
+                single-file `xz --test' or `xz --list'.
 
                 Supported METHODs:
 
                         auto    Look for a supported sandboxing method
                                 and use it if found. If no method is
                                 found, then sandboxing isn't used.
-                                This is the default.
 
                         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.
 
-                        pledge  Use pledge(2) (OpenBSD >= 5.9) for
-                                sandboxing. If pledge(2) isn't found,
-                                configure will give an error.
-
-                        landlock
-                                Use Landlock (Linux >= 5.13) for
-                                sandboxing. If no Landlock support
-                                is found, configure will give an error.
-
-    --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-symbol-versions
+                Use symbol versioning for liblzma. This is enabled by
+                default on GNU/Linux, other GNU-based systems, and
+                FreeBSD.
 
     --enable-debug
                 This enables the assert() macro and possibly some other
@@ -658,7 +517,7 @@ XZ Utils Installation
         liblzma, pass --enable-small to configure.
 
       - Tell the compiler to optimize for size instead of speed.
-        For example, with GCC, put -Os into CFLAGS.
+        E.g. with GCC, put -Os into CFLAGS.
 
       - xzdec and lzmadec will never use multithreading capabilities of
         liblzma. You can avoid dependency on libpthread by passing
@@ -719,54 +578,10 @@ XZ Utils Installation
                 src/scripts/xz*.in
 
 
-4. Tests
---------
-
-    The test framework can be built and run by executing "make check" in
-    the build directory. The tests are a mix of executables and POSIX
-    shell scripts (sh). All tests should pass if the default configuration
-    is used. Disabling features through the configure options may cause
-    some tests to be skipped. If any tests do not pass, see section 5.5.
-
-
-4.1. Testing in parallel
-
-    The tests can be run in parallel using the "-j" make option on systems
-    that support it. For instance, "make -j4 check" will run up to four
-    tests simultaneously.
-
-
-4.2. Cross compiling
-
-    The tests can be built without running them:
-
-        make check TESTS=
-
-    The TESTS variable is the list of tests you wish to run. Leaving it
-    empty will compile the tests without running any.
-
-    If the tests are copied to a target machine to execute, the test data
-    files in the directory tests/files must also be copied. The tests
-    search for the data files using the environment variable $srcdir,
-    expecting to find the data files under $srcdir/files/. If $srcdir
-    isn't set then it defaults to the current directory.
-
-    The shell script tests can be copied from the source directory to the
-    target machine to execute. In addition to the test files, these tests
-    will expect the following relative file paths to execute properly:
-
-        ./create_compress_files
-        ../config.h
-        ../src/xz/xz
-        ../src/xzdec/xzdec
-        ../src/scripts/xzdiff
-        ../src/scripts/xzgrep
-
-
-5. Troubleshooting
+4. Troubleshooting
 ------------------
 
-5.1. "No C99 compiler was found."
+4.1. "No C99 compiler was found."
 
     You need a C99 compiler to build XZ Utils. If the configure script
     cannot find a C99 compiler and you think you have such a compiler
@@ -781,7 +596,7 @@ XZ Utils Installation
     support enough C99.
 
 
-5.2. "No POSIX conforming shell (sh) was found."
+4.2. "No POSIX conforming shell (sh) was found."
 
     xzgrep and other scripts need a shell that (roughly) conforms
     to POSIX. The configure script tries to find such a shell. If
@@ -791,7 +606,7 @@ XZ Utils Installation
     this error by passing --disable-scripts to configure.
 
 
-5.3. configure works but build fails at crc32_x86.S
+4.3. configure works but build fails at crc32_x86.S
 
     The easy fix is to pass --disable-assembler to the configure script.
 
@@ -808,7 +623,7 @@ XZ Utils Installation
     (see INSTALL.generic).
 
 
-5.4. Lots of warnings about symbol visibility
+4.4. Lots of warnings about symbol visibility
 
     On some systems where symbol visibility isn't supported, GCC may
     still accept the visibility options and attributes, which will make
@@ -820,7 +635,7 @@ XZ Utils Installation
     using --enable-werror.
 
 
-5.5. "make check" fails
+4.5. "make check" fails
 
     If the other tests pass but test_scripts.sh fails, then the problem
     is in the scripts in src/scripts. Comparing the contents of
@@ -846,7 +661,7 @@ XZ Utils Installation
     information.
 
 
-5.6. liblzma.so (or similar) not found when running xz
+4.6. liblzma.so (or similar) not found when running xz
 
     If you installed the package with "make install" and get an error
     about liblzma.so (or a similarly named file) being missing, try

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 \
@@ -34,42 +38,31 @@ 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
 
-# Install the Doxygen generated documentation if they were built.
-install-data-local:
-	if test -d "$(srcdir)/doc/api" ; then \
-		$(MKDIR_P) "$(DESTDIR)$(docdir)/api" && \
-		$(INSTALL_DATA) "$(srcdir)"/doc/api/* \
-			"$(DESTDIR)$(docdir)/api"; \
-	fi
-
-# Remove the Doxygen generated documentation when uninstalling.
-uninstall-local:
-	rm -rf "$(DESTDIR)$(docdir)/api"
+examplesolddir = $(docdir)/examples_old
+dist_examplesold_DATA = \
+	doc/examples_old/xz_pipe_comp.c \
+	doc/examples_old/xz_pipe_decomp.c
 endif
 
 EXTRA_DIST = \
-	cmake \
-	dos \
-	doxygen \
-	extra \
 	po4a \
+	extra \
+	dos \
 	windows \
+	macosx \
+	cmake \
 	CMakeLists.txt \
-	COPYING.CC-BY-SA-4.0 \
+	autogen.sh \
+	Doxyfile.in \
 	COPYING.GPLv2 \
 	COPYING.GPLv3 \
 	COPYING.LGPLv2.1 \
 	INSTALL.generic \
 	PACKAGERS \
-	TODO \
-	autogen.sh \
 	build-aux/manconv.sh \
-	build-aux/version.sh \
-	doc/xz-logo.png \
-	po/xz.pot-header
+	build-aux/version.sh
 
 ACLOCAL_AMFLAGS = -I m4
 
@@ -88,7 +81,7 @@ manfiles = \
 dist-hook:
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
 		( cd "$(srcdir)" && git log --date=iso --stat \
-			b69da6d4bb6bb11fc0cf066920791990d2b22a06^..HEAD ) \
+			b667a3ef6338a2c1db7b7706b1f6c99ea392221c^..HEAD ) \
 			> "$(distdir)/ChangeLog"; \
 	fi
 	if type groff > /dev/null 2>&1 && type ps2pdf > /dev/null 2>&1; then \
@@ -107,11 +100,6 @@ dist-hook:
 				> "$$dest/txt/$$BASE.txt"; \
 		done; \
 	fi
-	if test -d "$(srcdir)/doc/api" ; then \
-		$(MKDIR_P) "$(distdir)/doc/api" && \
-		$(INSTALL_DATA) "$(srcdir)"/doc/api/* \
-			"$(distdir)/doc/api"; \
-	fi
 
 # This works with GNU tar and gives cleaner package than normal 'make dist'.
 # This also ensures that the man page translations are up to date (dist-hook
@@ -119,7 +107,6 @@ dist-hook:
 mydist:
 	sh "$(srcdir)/src/liblzma/validate_map.sh"
 	cd "$(srcdir)/po4a" && sh update-po
-	cd "$(srcdir)/doxygen" && sh update-doxygen
 	VERSION=$(VERSION); \
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
 		SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=4 | cut -b2-`; \

PACKAGERS

@@ -44,8 +44,6 @@ Information to packagers of XZ Utils
                         lzmadec binary for compatibility with LZMA Utils
         liblzma         liblzma.so.*
         liblzma-devel   liblzma.so, liblzma.a, API headers
-        liblzma-doc     Doxygen-generated liblzma API docs (HTML),
-                        example programs
 
 
 2. Package description
@@ -111,28 +109,20 @@ Information to packagers of XZ Utils
         This package includes the API headers, static library, and
         other development files related to liblzma.
 
-    liblzma-doc:
-
-        liblzma API documentation in HTML and example usage
-
-        This package includes the Doxygen-generated liblzma API
-        HTML docs and example programs showing how to use liblzma.
-
 
 3. License
 ----------
 
     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
-    important files ending up into the binary package are under GPLv2+.
-    So it is simplest to just say GPLv2+ if you cannot specify
-    "BSD0 and GPLv2+".
+    XZ Utils are in the public domain, but some less important files
+    ending up into the binary package are under GPLv2+. So it is simplest
+    to just say GPLv2+ if you cannot specify "public domain 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
-    third-party code which may have other licenses).
+    public domain code (from XZ Utils at least; compiler or linker may
+    add some third-party code, which may be copyrighted).
 
 
 4. configure options
@@ -148,8 +138,6 @@ Information to packagers of XZ Utils
         --enable-checks
         --enable-small (*)
         --disable-threads (*)
-        --disable-microlzma (*)
-        --disable-lzip-decoder (*)
 
     (*) These are OK when building xzdec and lzmadec as described
         in INSTALL.
@@ -170,13 +158,12 @@ Information to packagers of XZ Utils
     can be replaced with a symlink if your distro ships with shared
     copies of the common license texts.
 
-    The Doxygen-generated documentation (HTML) for the liblzma API
-    headers is included in the source release and will be installed by
-    "make install" to $docdir/api. All JavaScript is removed to
-    simplify license compliance and to reduce the install size. If the
-    liblzma API documentation is not desired, either run configure with
-    --disable-doc or remove the doc/api directory before running
-    "make install".
+    liblzma API is currently only documented using Doxygen tags in the
+    API headers. It hasn't been tested much how good results Doxygen
+    is able to make from the tags (e.g. Doxyfile might need tweaking,
+    the tagging may need to be improved etc.), so it might be simpler
+    to just let people read docs directly from the .h files for now,
+    and also save quite a bit in package size at the same time.
 
 
 6. Extra files

README

@@ -67,27 +67,24 @@ XZ Utils
 
 1.1. Overall documentation
 
-    README                This file
+    README              This file
 
-    INSTALL.generic       Generic install instructions for those not
-                          familiar with packages using GNU Autotools
-    INSTALL               Installation instructions specific to XZ Utils
-    PACKAGERS             Information to packagers of XZ Utils
+    INSTALL.generic     Generic install instructions for those not familiar
+                        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
+    COPYING             XZ Utils copyright and license information
+    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
 
-    AUTHORS               The main authors of XZ Utils
-    THANKS                Incomplete list of people who have helped making
-                          this software
-    NEWS                  User-visible changes between XZ Utils releases
-    ChangeLog             Detailed list of changes (commit log)
-    TODO                  Known bugs and some sort of to-do list
+    AUTHORS             The main authors of XZ Utils
+    THANKS              Incomplete list of people who have helped making
+                        this software
+    NEWS                User-visible changes between XZ Utils releases
+    ChangeLog           Detailed list of changes (commit log)
+    TODO                Known bugs and some sort of to-do list
 
     Note that only some of the above files are included in binary
     packages.
@@ -205,77 +202,9 @@ XZ Utils
 
         https://translationproject.org/html/translators.html
 
-    Below are notes and testing instructions specific to xz
-    translations.
-
-    Testing can be done by installing xz into a temporary directory:
-
-        ./configure --disable-shared --prefix=/tmp/xz-test
-        # <Edit the .po file in the po directory.>
-        make -C po update-po
-        make install
-        bash debug/translation.bash | less
-        bash debug/translation.bash | less -S  # For --list outputs
-
-    Repeat the above as needed (no need to re-run configure though).
-
-    Note especially the following:
-
-      - The output of --help and --long-help must look nice on
-        an 80-column terminal. It's OK to add extra lines if needed.
-
-      - In contrast, don't add extra lines to error messages and such.
-        They are often preceded with e.g. a filename on the same line,
-        so you have no way to predict where to put a \n. Let the terminal
-        do the wrapping even if it looks ugly. Adding new lines will be
-        even uglier in the generic case even if it looks nice in a few
-        limited examples.
-
-      - Be careful with column alignment in tables and table-like output
-        (--list, --list --verbose --verbose, --info-memory, --help, and
-        --long-help):
-
-          * All descriptions of options in --help should start in the
-            same column (but it doesn't need to be the same column as
-            in the English messages; just be consistent if you change it).
-            Check that both --help and --long-help look OK, since they
-            share several strings.
-
-          * --list --verbose and --info-memory print lines that have
-            the format "Description:   %s". If you need a longer
-            description, you can put extra space between the colon
-            and %s. Then you may need to add extra space to other
-            strings too so that the result as a whole looks good (all
-            values start at the same column).
-
-          * The columns of the actual tables in --list --verbose --verbose
-            should be aligned properly. Abbreviate if necessary. It might
-            be good to keep at least 2 or 3 spaces between column headings
-            and avoid spaces in the headings so that the columns stand out
-            better, but this is a matter of opinion. Do what you think
-            looks best.
-
-      - Be careful to put a period at the end of a sentence when the
-        original version has it, and don't put it when the original
-        doesn't have it. Similarly, be careful with \n characters
-        at the beginning and end of the strings.
-
-      - Read the TRANSLATORS comments that have been extracted from the
-        source code and included in xz.pot. Some comments suggest
-        testing with a specific command which needs an .xz file. You
-        may use e.g. any tests/files/good-*.xz. However, these test
-        commands are included in translations.bash output, so reading
-        translations.bash output carefully can be enough.
-
-      - If you find language problems in the original English strings,
-        feel free to suggest improvements. Ask if something is unclear.
-
-      - The translated messages should be understandable (sometimes this
-        may be a problem with the original English messages too). Don't
-        make a direct word-by-word translation from English especially if
-        the result doesn't sound good in your language.
-
-    Thanks for your help!
+    Several strings will change in a future version of xz so if you
+    wish to start a new translation, look at the code in the xz git
+    repository instead of a 5.2.x release.
 
 
 5. Other implementations of the .xz format
@@ -290,11 +219,7 @@ XZ Utils
     XZ Embedded is a limited implementation written for use in the Linux
     kernel, but it is also suitable for other embedded use.
 
-        https://xz.tukaani.org/xz-embedded/
-
-    XZ for Java is a complete implementation written in pure Java.
-
-        https://xz.tukaani.org/xz-for-java/
+        https://tukaani.org/xz/embedded.html
 
 
 6. Contact information

THANKS

@@ -5,7 +5,6 @@ Thanks
 Some people have helped more, some less, but nevertheless everyone's help
 has been important. :-) In alphabetical order:
   - Mark Adler
-  - Kian-Meng Ang
   - H. Peter Anvin
   - Jeff Bastian
   - Nelson H. F. Beebe
@@ -20,8 +19,6 @@ has been important. :-) In alphabetical order:
   - Jakub Bogusz
   - Adam Borowski
   - Maarten Bosmans
-  - Lukas Braune
-  - Benjamin Buch
   - Trent W. Buck
   - Kevin R. Bulgrien
   - James Buren
@@ -34,7 +31,6 @@ has been important. :-) In alphabetical order:
   - Vitaly Chikunov
   - Antoine Cœur
   - Gabi Davar
-  - İhsan Doğan
   - Chris Donawa
   - Andrew Dudman
   - Markus Duft
@@ -52,11 +48,9 @@ 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
@@ -64,27 +58,21 @@ has been important. :-) In alphabetical order:
   - Peter Ivanov
   - Nicholas Jackson
   - Sam James
-  - Hajin Jang
-  - Hans Jansen
   - Jouk Jansen
   - Jun I Jin
   - Kiyoshi Kanazawa
-  - Joona Kannisto
   - Per Øyvind Karlsen
   - Iouri Kharon
   - Thomas Klausner
   - Richard Koch
   - Anton Kochkov
   - Ville Koskinen
-  - Sergey Kosukhin
   - Marcin Kowalczyk
   - Jan Kratochvil
   - Christian Kujau
   - Stephan Kulow
-  - Ilya Kurdyukov
   - Peter Lawler
   - James M Leddy
-  - Kelvin Lee
   - Vincent Lefevre
   - Hin-Tak Leung
   - Andraž 'ruskie' Levstik
@@ -95,7 +83,6 @@ has been important. :-) In alphabetical order:
   - Lorenzo De Liso
   - H.J. Lu
   - Bela Lubkin
-  - Chenxi Mao
   - Gregory Margo
   - Julien Marrec
   - Ed Maste
@@ -113,7 +100,6 @@ has been important. :-) In alphabetical order:
   - Jonathan Nieder
   - Andre Noll
   - Peter O'Gorman
-  - Dimitri Papadopoulos Orfanos
   - Daniel Packard
   - Filip Palian
   - Peter Pallinger
@@ -136,7 +122,6 @@ has been important. :-) In alphabetical order:
   - Torsten Rupp
   - Stephen Sachs
   - Jukka Salmi
-  - Agostino Sarubbo
   - Alexandre Sauvé
   - Benno Schulenberg
   - Andreas Schwab
@@ -148,16 +133,13 @@ has been important. :-) In alphabetical order:
   - Brad Smith
   - Bruce Stark
   - Pippijn van Steenhoven
-  - Martin Storsjö
   - Jonathan Stott
   - Dan Stromberg
   - Jia Tan
   - Vincent Torri
-  - Alexey Tourbin
   - Paul Townsend
   - Mohammed Adnène Trojette
-  - Taiki Tsunekawa
-  - Maksym Vatsyk
+  - Alexey Tourbin
   - Loganaden Velvindron
   - Patrick J. Volkerding
   - Martin Väth
@@ -172,7 +154,6 @@ 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.
@@ -55,6 +59,8 @@ Missing features
       - Implement threaded match finders.
       - Implement pigz-style threading in LZMA2.
 
+    Multithreaded decompression
+
     Buffer-to-buffer coding could use less RAM (especially when
     decompressing LZMA1 or LZMA2).
 

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
@@ -17,38 +19,15 @@ ${AUTOCONF:-autoconf}
 ${AUTOHEADER:-autoheader}
 ${AUTOMAKE:-automake} -acf --foreign
 
-# Generate the translated man pages and the doxygen documentation if the
-# "po4a" and "doxygen" tools are available.
+# Generate the translated man pages if the "po4a" tool is available.
 # This is *NOT* done by "autoreconf -fi" or when "make" is run.
-# Pass --no-po4a or --no-doxygen to this script to skip these steps.
-# It can be useful when you know that po4a or doxygen aren't available and
-# don't want autogen.sh to exit with non-zero exit status.
-generate_po4a="y"
-generate_doxygen="y"
-
-for arg in "$@"
-do
-	case $arg in
-		"--no-po4a")
-			generate_po4a="n"
-			;;
-
-		"--no-doxygen")
-			generate_doxygen="n"
-			;;
-	esac
-done
-
-if test "$generate_po4a" != "n"; then
+#
+# Pass --no-po4a to this script to skip this step. It can be useful when
+# you know that po4a isn't available and don't want autogen.sh to exit
+# with non-zero exit status.
+if test "x$1" != "x--no-po4a"; then
 	cd po4a
 	sh update-po
-	cd ..
-fi
-
-if test "$generate_doxygen" != "n"; then
-	cd doxygen
-	sh update-doxygen
-	cd ..
 fi
 
 exit 0

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
@@ -36,10 +38,10 @@ s/^\\.PD\$/.PD $PD/"
 
 case $FORMAT in
 	ascii)
-		groff -t -mandoc -Tascii -P-c | col -bx
+		groff -t -mandoc -Tascii | col -bx
 		;;
 	utf8)
-		groff -t -mandoc -Tutf8 -P-c | col -bx
+		groff -t -mandoc -Tutf8 | col -bx
 		;;
 	ps)
 		sed "$SED_PD" | groff -dpaper=$PAPER -t -mandoc \

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

@@ -1,25 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# remove-ordinals.cmake
-#
-# Removes the ordinal numbers from a DEF file that has been created by
-# GNU ld or LLVM lld option --output-def (when creating a Windows DLL).
-# This should be equivalent: sed 's/ \+@ *[0-9]\+//'
-#
-# Usage:
-#
-#     cmake -DINPUT_FILE=infile.def.in \
-#           -DOUTPUT_FILE=outfile.def \
-#           -P remove-ordinals.cmake
-#
-#############################################################################
-#
-# Author: Lasse Collin
-#
-#############################################################################
-
-file(READ "${INPUT_FILE}" STR)
-string(REGEX REPLACE " +@ *[0-9]+" "" STR "${STR}")
-file(WRITE "${OUTPUT_FILE}" "${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)
@@ -60,67 +59,29 @@ function(tuklib_integer TARGET_OR_ALL)
         endif()
     endif()
 
-    # Guess that unaligned access is fast on these archs:
-    #   - 32/64-bit x86 / x86-64
-    #   - 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
+    # 16-bit and 32-bit unaligned access is fast on x86(-64),
+    # big endian PowerPC, and usually on 32/64-bit ARM too.
+    # There are others too and ARM could be a false match.
     #
-    # CMake doesn't provide a standardized/normalized list of processor arch
-    # names. For example, x86-64 may be "x86_64" (Linux), "AMD64" (Windows),
-    # or even "EM64T" (64-bit WinXP).
+    # Guess the default value for the option.
+    # CMake's ability to give info about the target arch seems bad.
+    # 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)
-
-    # There is no ^ in the first regex branch to allow "i" at the beginning
-    # so it can match "i386" to "i786", and "x86_64".
-    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)
+    if(CMAKE_SYSTEM_PROCESSOR MATCHES
+       "[Xx3456]86|^[Xx]64|^[Aa][Mm][Dd]64|^[Aa][Rr][Mm]|^aarch|^powerpc|^ppc")
+        if(NOT WORDS_BIGENDIAN OR
+           NOT CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc|^ppc")
+           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."
+with 16-bit and 32-bit integers."
            "${FAST_UNALIGNED_GUESS}")
     tuklib_add_definition_if("${TARGET_OR_ALL}" TUKLIB_FAST_UNALIGNED_ACCESS)
 

cmake/tuklib_large_file_support.cmake

@@ -1,53 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# tuklib_large_file_support.cmake
-#
-# If off_t is less than 64 bits by default and -D_FILE_OFFSET_BITS=64
-# makes off_t become 64-bit, the CMake option LARGE_FILE_SUPPORT is
-# provided (ON by default) and -D_FILE_OFFSET_BITS=64 is added to
-# the compile definitions if LARGE_FILE_SUPPORT is ON.
-#
-# Author: Lasse Collin
-#
-#############################################################################
-
-include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
-include(CheckCSourceCompiles)
-
-function(tuklib_large_file_support TARGET_OR_ALL)
-    # MSVC must be handled specially in the C code.
-    if(MSVC)
-        return()
-    endif()
-
-    set(TUKLIB_LARGE_FILE_SUPPORT_TEST
-            "#include <sys/types.h>
-            int foo[sizeof(off_t) >= 8 ? 1 : -1];
-            int main(void) { return 0; }")
-
-    check_c_source_compiles("${TUKLIB_LARGE_FILE_SUPPORT_TEST}"
-                            TUKLIB_LARGE_FILE_SUPPORT_BY_DEFAULT)
-
-    if(NOT TUKLIB_LARGE_FILE_SUPPORT_BY_DEFAULT)
-        cmake_push_check_state()
-        # This needs -D.
-        list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
-        check_c_source_compiles("${TUKLIB_LARGE_FILE_SUPPORT_TEST}"
-                                TUKLIB_LARGE_FILE_SUPPORT_WITH_FOB64)
-        cmake_pop_check_state()
-    endif()
-
-    if(TUKLIB_LARGE_FILE_SUPPORT_WITH_FOB64)
-        # Show the option only when _FILE_OFFSET_BITS=64 affects sizeof(off_t).
-        option(LARGE_FILE_SUPPORT
-               "Use -D_FILE_OFFSET_BITS=64 to support files larger than 2 GiB."
-               ON)
-
-        if(LARGE_FILE_SUPPORT)
-            # This must not use -D.
-            tuklib_add_definitions("${TARGET_OR_ALL}" "_FILE_OFFSET_BITS=64")
-        endif()
-    endif()
-endfunction()

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("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckSymbolExists)
@@ -14,6 +13,7 @@ include(CheckSymbolExists)
 function(tuklib_progname TARGET_OR_ALL)
     # NOTE: This glibc extension requires _GNU_SOURCE.
     check_symbol_exists(program_invocation_name errno.h
-                        HAVE_PROGRAM_INVOCATION_NAME)
-    tuklib_add_definition_if("${TARGET_OR_ALL}" HAVE_PROGRAM_INVOCATION_NAME)
+                        HAVE_DECL_PROGRAM_INVOCATION_NAME)
+    tuklib_add_definition_if("${TARGET_OR_ALL}"
+                             HAVE_DECL_PROGRAM_INVOCATION_NAME)
 endfunction()

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
@@ -17,7 +18,7 @@
 AC_PREREQ([2.69])
 
 AC_INIT([XZ Utils], m4_esyscmd([/bin/sh build-aux/version.sh]),
-	[xz@tukaani.org], [xz], [https://xz.tukaani.org/xz-utils/])
+	[xz@tukaani.org], [xz], [https://tukaani.org/xz/])
 AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
@@ -78,8 +79,8 @@ fi
 # Filters #
 ###########
 
-m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,arm64,sparc,riscv])dnl
-m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,arm64,sparc,riscv])
+m4_define([SUPPORTED_FILTERS], [lzma1,lzma2,delta,x86,powerpc,ia64,arm,armthumb,sparc])dnl
+m4_define([SIMPLE_FILTERS], [x86,powerpc,ia64,arm,armthumb,sparc])
 m4_define([LZ_FILTERS], [lzma1,lzma2])
 
 m4_foreach([NAME], [SUPPORTED_FILTERS],
@@ -293,49 +294,6 @@ else
 fi
 
 
-#############
-# MicroLZMA #
-#############
-
-AC_MSG_CHECKING([if MicroLZMA support should be built])
-AC_ARG_ENABLE([microlzma], AS_HELP_STRING([--disable-microlzma],
-		[Do not build MicroLZMA encoder and decoder.
-		It is needed by specific applications only,
-		for example, erofs-utils.]),
-	[], [enable_microlzma=yes])
-case $enable_microlzma in
-	yes | no)
-		AC_MSG_RESULT([$enable_microlzma])
-		;;
-	*)
-		AC_MSG_RESULT([])
-		AC_MSG_ERROR([--enable-microlzma accepts only 'yes' or 'no'.])
-		;;
-esac
-AM_CONDITIONAL(COND_MICROLZMA, test "x$enable_microlzma" = xyes)
-
-
-#############################
-# .lz (lzip) format support #
-#############################
-
-AC_MSG_CHECKING([if .lz (lzip) decompression support should be built])
-AC_ARG_ENABLE([lzip-decoder], AS_HELP_STRING([--disable-lzip-decoder],
-		[Disable decompression support for .lz (lzip) files.]),
-	[], [enable_lzip_decoder=yes])
-if test "x$enable_decoder_lzma1" != xyes; then
-	enable_lzip_decoder=no
-	AC_MSG_RESULT([no because LZMA1 decoder is disabled])
-elif test "x$enable_lzip_decoder" = xyes; then
-	AC_DEFINE([HAVE_LZIP_DECODER], [1],
-		[Define to 1 if .lz (lzip) decompression support is enabled.])
-	AC_MSG_RESULT([yes])
-else
-	AC_MSG_RESULT([no])
-fi
-AM_CONDITIONAL(COND_LZIP_DECODER, test "x$enable_lzip_decoder" = xyes)
-
-
 ###########################
 # Assembler optimizations #
 ###########################
@@ -353,40 +311,22 @@ if test "x$enable_assembler" = xyes; then
 		linux* | *bsd* | mingw* | cygwin | msys | *djgpp*)
 			case $host_cpu in
 				i?86)   enable_assembler=x86 ;;
+				x86_64) enable_assembler=x86_64 ;;
 			esac
 			;;
 	esac
 fi
 case $enable_assembler in
-	x86 | no)
+	x86 | x86_64 | no)
 		AC_MSG_RESULT([$enable_assembler])
 		;;
 	*)
 		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', `x86', or `x86_64'.])
 		;;
 esac
 AM_CONDITIONAL(COND_ASM_X86, test "x$enable_assembler" = xx86)
-
-
-#############
-# CLMUL CRC #
-#############
-
-AC_ARG_ENABLE([clmul-crc], AS_HELP_STRING([--disable-clmul-crc],
-		[Do not use carryless multiplication for CRC calculation
-		even if support for it is detected.]),
-	[], [enable_clmul_crc=yes])
-
-
-############################
-# ARM64 CRC32 Instructions #
-############################
-
-AC_ARG_ENABLE([arm64-crc32], AS_HELP_STRING([--disable-arm64-crc32],
-		[Do not use ARM64 CRC32 instructions even if support for it
-		is detected.]),
-	[], [enable_arm64_crc32=yes])
+AM_CONDITIONAL(COND_ASM_X86_64, test "x$enable_assembler" = xx86_64)
 
 
 #####################
@@ -402,7 +342,7 @@ 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 +354,8 @@ 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
-		'vista'. The default is 'yes'. Using 'no' together with
+		[Supported METHODS are `yes', `no', `posix', `win95', and
+		`vista'. The default is `yes'. Using `no' together with
 		--enable-small makes liblzma thread unsafe.]),
 	[], [enable_threads=yes])
 
@@ -442,10 +382,18 @@ 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
 
+# The Win95 threading lacks thread-safe one-time initialization function.
+# It's better to disallow it instead of allowing threaded but thread-unsafe
+# build.
+if test "x$enable_small$enable_threads" = xyeswin95; then
+	AC_MSG_ERROR([--enable-threads=win95 and --enable-small cannot be
+		used at the same time])
+fi
+
 # We use the actual result a little later.
 
 
@@ -527,25 +475,20 @@ 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'.
-		The default is 'auto' which enables sandboxing if
+		[Sandboxing METHOD can be `auto', `no', or `capsicum'.
+		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
-	no-no-*)
-		enable_sandbox=no
-		AC_MSG_RESULT([no, --disable-xz and --disable-xzdec was used])
-		;;
-	*-*-auto)
+case $enable_sandbox in
+	auto)
 		AC_MSG_RESULT([maybe (autodetect)])
 		;;
-	*-*-no | *-*-capsicum | *-*-pledge | *-*-landlock)
+	no | capsicum)
 		AC_MSG_RESULT([$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', or `capsicum'.])
 		;;
 esac
 
@@ -604,7 +547,7 @@ echo "Initializing Automake:"
 # https://debbugs.gnu.org/cgi/bugreport.cgi?bug=17354
 # The -Wno-unsupported is used to silence warnings about missing
 # "subdir-objects".
-AM_INIT_AUTOMAKE([1.12 foreign tar-v7 filename-length-max=99 -Wno-unsupported])
+AM_INIT_AUTOMAKE([1.12 foreign tar-v7 filename-length-max=99 serial-tests -Wno-unsupported])
 AC_PROG_LN_S
 
 dnl # Autoconf >= 2.70 warns that AC_PROG_CC_C99 is obsolete. However,
@@ -635,10 +578,18 @@ 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 $PTHREAD_CFLAGS"
-		AC_CHECK_FUNCS([pthread_condattr_setclock])
+		AC_SEARCH_LIBS([clock_gettime], [rt])
+		AC_CHECK_FUNCS([clock_gettime pthread_condattr_setclock])
+		AC_CHECK_DECLS([CLOCK_MONOTONIC], [], [], [[#include <time.h>]])
 		CFLAGS=$OLD_CFLAGS
 	],
 	[win95], [
@@ -705,84 +656,65 @@ fi
 # used when creating a static library.
 #
 # Libtool always uses -DPIC when building shared libraries by default and
-# doesn't use it for static libs by default. This can be overridden with
+# doesn't use it for static libs by default. This can be overriden with
 # --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)])
-], [
-	# "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-$host_os" in
-			microblaze*)
-				# GCC 12 on MicroBlaze doesn't support
-				# __symver__ attribute. It's simplest and
-				# safest to use the generic version on that
-				# platform since then only the linker script
-				# is needed. The RHEL/CentOS 7 compatibility
-				# symbols don't matter on MicroBlaze.
-				enable_symbol_versions=generic
-				;;
-			*-linux*)
-				# NVIDIA HPC Compiler doesn't support symbol
-				# versioning but the linker script can still
-				# be used.
-				AC_EGREP_CPP([use_generic_symbol_versioning],
-					[#ifdef __NVCOMPILER
-					use_generic_symbol_versioning
-					#endif],
-					[enable_symbol_versions=generic],
-					[enable_symbol_versions=linux])
-				;;
-			*)
-				enable_symbol_versions=generic
-				;;
-		esac
-	fi
-
-	if test "x$enable_symbol_versions" = xlinux ; then
-		case "$pic_mode-$enable_static" in
-			default-*)
-				# Use symvers if PIC is defined.
-				have_symbol_versions_linux=2
-				;;
-			*-no)
-				# Not building static library.
-				# Use symvers unconditionally.
-				have_symbol_versions_linux=1
-				;;
-			*)
-				AC_MSG_RESULT([])
-				AC_MSG_ERROR([
+else
+	case "$host_cpu-$host_os" in
+		microblaze*)
+			# GCC 12 on MicroBlaze doesn't support __symver__
+			# attribute. It's simplest and safest to use the
+			# generic version on that platform since then only
+			# the linker script is needed. The RHEL/CentOS 7
+			# compatibility symbols don't matter on MicroBlaze.
+			enable_symbol_versions=generic
+			;;
+		*-linux*)
+			case "$pic_mode-$enable_static" in
+				default-*)
+					# Use symvers if PIC is defined.
+					have_symbol_versions_linux=2
+					;;
+				*-no)
+					# Not building static library.
+					# Use symvers unconditionally.
+					have_symbol_versions_linux=1
+					;;
+				*)
+					AC_MSG_RESULT([])
+					AC_MSG_ERROR([
     On GNU/Linux, building both shared and static library at the same time
     is not supported if --with-pic or --without-pic is used.
     Use either --disable-shared or --disable-static to build one type
     of library at a time. If both types are needed, build one at a time,
     possibly picking only src/liblzma/.libs/liblzma.a from the static build.])
-				;;
-		esac
-		AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
-			[$have_symbol_versions_linux],
-			[Define to 1 to if GNU/Linux-specific details
-			are unconditionally wanted for symbol
-			versioning. Define to 2 to if these are wanted
-			only if also PIC is defined (allows building
-			both shared and static liblzma at the same
-			time with Libtool if neither --with-pic nor
-			--without-pic is used). This define must be
-			used together with liblzma_linux.map.])
-	elif test "x$enable_symbol_versions" != xgeneric ; then
-		AC_MSG_RESULT([])
-		AC_MSG_ERROR([unknown symbol versioning variant '$enable_symbol_versions'])
-	fi
+					;;
+			esac
+			enable_symbol_versions=linux
+			AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
+				[$have_symbol_versions_linux],
+				[Define to 1 to if GNU/Linux-specific details
+				are unconditionally wanted for symbol
+				versioning. Define to 2 to if these are wanted
+				only if also PIC is defined (allows building
+				both shared and static liblzma at the same
+				time with Libtool if neither --with-pic nor
+				--without-pic is used). This define must be
+				used together with liblzma_linux.map.])
+			;;
+		*)
+			enable_symbol_versions=generic
+			;;
+	esac
 	AC_MSG_RESULT([yes ($enable_symbol_versions)])
-])
+fi
 
 AM_CONDITIONAL([COND_SYMVERS_LINUX],
 	[test "x$enable_symbol_versions" = xlinux])
@@ -817,9 +749,8 @@ AC_CHECK_HEADERS([fcntl.h limits.h sys/time.h],
 	[],
 	[AC_MSG_ERROR([Required header file(s) are missing.])])
 
-# immintrin.h allows the use of the intrinsic functions if they are available.
-# cpuid.h may be used for detecting x86 processor features at runtime.
-AC_CHECK_HEADERS([immintrin.h cpuid.h])
+# This allows the use of the intrinsic functions if they are available.
+AC_CHECK_HEADERS([immintrin.h])
 
 
 ###############################################################################
@@ -851,127 +782,6 @@ AC_CHECK_MEMBERS([
 AC_SYS_LARGEFILE
 AC_C_BIGENDIAN
 
-# __attribute__((__constructor__)) can be used for one-time initializations.
-# Use -Werror because some compilers accept unknown attributes and just
-# give a warning.
-#
-# FIXME? Unfortunately -Werror can cause trouble if CFLAGS contains options
-# that produce warnings for unrelated reasons. For example, GCC and Clang
-# support -Wunused-macros which will warn about "#define _GNU_SOURCE 1"
-# which will be among the #defines that Autoconf inserts to the beginning of
-# the test program. There seems to be no nice way to prevent Autoconf from
-# inserting the any defines to the test program.
-AC_MSG_CHECKING([if __attribute__((__constructor__)) can be used])
-have_func_attribute_constructor=no
-OLD_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -Werror"
-AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-	__attribute__((__constructor__))
-	static void my_constructor_func(void) { return; }
-]])], [
-	AC_DEFINE([HAVE_FUNC_ATTRIBUTE_CONSTRUCTOR], [1],
-		[Define to 1 if __attribute__((__constructor__))
-		is supported for functions.])
-	have_func_attribute_constructor=yes
-	AC_MSG_RESULT([yes])
-], [
-	AC_MSG_RESULT([no])
-])
-CFLAGS="$OLD_CFLAGS"
-
-# The Win95 threading lacks a thread-safe one-time initialization function.
-# The one-time initialization is needed for crc32_small.c and crc64_small.c
-# create the CRC tables. So if small mode is enabled, the threading mode is
-# win95, and the compiler does not support attribute constructor, then we
-# would end up with a multithreaded build that is thread-unsafe. As a
-# result this configuration is not allowed.
-if test "x$enable_small$enable_threads$have_func_attribute_constructor" \
-		= xyeswin95no; then
-	AC_MSG_ERROR([
-    --enable-threads=win95 and --enable-small cannot be used
-    at the same time with a compiler that doesn't support
-    __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 +790,6 @@ 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])
 
@@ -1073,163 +867,10 @@ AC_CHECK_DECL([_mm_movemask_epi8],
 #include <immintrin.h>
 #endif])
 
-# For faster CRC on 32/64-bit x86 and E2K (see also crc64_fast.c):
-#
-#   - Check for the CLMUL intrinsic _mm_clmulepi64_si128 in <immintrin.h>.
-#     Check also for _mm_set_epi64x for consistency with CMake build
-#     where it's needed to disable CLMUL with VS2013.
-#
-#   - Check that __attribute__((__target__("ssse3,sse4.1,pclmul"))) works
-#     together with _mm_clmulepi64_si128 from <immintrin.h>. The attribute
-#     was added in GCC 4.4 but some GCC 4.x versions don't allow intrinsics
-#     with it. Exception: it must be not be used with EDG-based compilers
-#     like ICC and the compiler on E2K.
-#
-# If everything above is supported, runtime detection will be used to keep the
-# binaries working on systems that don't support the required extensions.
-AC_MSG_CHECKING([if _mm_clmulepi64_si128 is usable])
-AS_IF([test "x$enable_clmul_crc" = xno], [
-	AC_MSG_RESULT([no, --disable-clmul-crc was used])
-], [
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-#include <immintrin.h>
-
-// CLMUL works on older E2K instruction set but it is slow due to emulation.
-#if defined(__e2k__) && __iset__ < 6
-#	error
-#endif
-
-// Intel's old compiler (ICC) can define __GNUC__ but the attribute must not
-// be used with it. The new Clang-based ICX needs the attribute.
-// Checking for !defined(__EDG__) catches ICC and other EDG-based compilers.
-#if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
-__attribute__((__target__("ssse3,sse4.1,pclmul")))
-#endif
-__m128i my_clmul(__m128i a)
-{
-	const __m128i b = _mm_set_epi64x(1, 2);
-	return _mm_clmulepi64_si128(a, b, 0);
-}
-	]])], [
-		AC_DEFINE([HAVE_USABLE_CLMUL], [1],
-			[Define to 1 if _mm_set_epi64x and
-			_mm_clmulepi64_si128 are usable.
-			See configure.ac for details.])
-		enable_clmul_crc=yes
-	], [
-		enable_clmul_crc=no
-	])
-	AC_MSG_RESULT([$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])
-		])
+		AX_CHECK_CAPSICUM([enable_sandbox=found], [:])
 	]
 )
 
@@ -1267,14 +908,12 @@ AS_IF([test "$GCC" = yes], [
 	#     backed up with "return LZMA_PROG_ERROR".
 	#   * -Wcast-qual would break various things where we need a non-const
 	#     pointer although we don't modify anything through it.
+	#   * -Wcast-align breaks optimized CRC32 and CRC64 implementation
+	#     on some architectures (not on x86), where this warning is bogus,
+	#     because we take care of correct alignment.
 	#   * -Winline, -Wdisabled-optimization, -Wunsafe-loop-optimizations
 	#     don't seem so useful here; at least the last one gives some
 	#     warnings which are not bugs.
-	#   * -Wconversion still shows too many warnings.
-	#
-	# The flags before the empty line are for GCC and many of them
-	# are supported by Clang too. The flags after the empty line are
-	# for Clang.
 	for NEW_FLAG in \
 			-Wall \
 			-Wextra \
@@ -1282,49 +921,27 @@ AS_IF([test "$GCC" = yes], [
 			-Wformat=2 \
 			-Winit-self \
 			-Wmissing-include-dirs \
-			-Wshift-overflow=2 \
-			-Wstrict-overflow=3 \
-			-Walloc-zero \
-			-Wduplicated-cond \
+			-Wstrict-aliasing \
 			-Wfloat-equal \
 			-Wundef \
 			-Wshadow \
 			-Wpointer-arith \
 			-Wbad-function-cast \
 			-Wwrite-strings \
-			-Wdate-time \
-			-Wsign-conversion \
-			-Wfloat-conversion \
 			-Wlogical-op \
 			-Waggregate-return \
 			-Wstrict-prototypes \
 			-Wold-style-definition \
 			-Wmissing-prototypes \
 			-Wmissing-declarations \
-			-Wredundant-decls \
-			\
-			-Wc99-compat \
-			-Wc11-extensions \
-			-Wc2x-compat \
-			-Wc2x-extensions \
-			-Wpre-c2x-compat \
-			-Warray-bounds-pointer-arithmetic \
-			-Wassign-enum \
-			-Wconditional-uninitialized \
-			-Wdocumentation \
-			-Wduplicate-enum \
-			-Wempty-translation-unit \
-			-Wflexible-array-extensions \
-			-Wmissing-variable-declarations \
-			-Wnewline-eof \
-			-Wshift-sign-overflow \
-			-Wstring-conversion
+			-Wmissing-noreturn \
+			-Wredundant-decls
 	do
 		AC_MSG_CHECKING([if $CC accepts $NEW_FLAG])
 		OLD_CFLAGS="$CFLAGS"
 		CFLAGS="$CFLAGS $NEW_FLAG -Werror"
 		AC_COMPILE_IFELSE([AC_LANG_SOURCE(
-				[[void foo(void); void foo(void) { }]])], [
+				[void foo(void); void foo(void) { }])], [
 			AM_CFLAGS="$AM_CFLAGS $NEW_FLAG"
 			AC_MSG_RESULT([yes])
 		], [
@@ -1361,6 +978,7 @@ xz=`echo xz | sed "$program_transform_name"`
 AC_SUBST([xz])
 
 AC_CONFIG_FILES([
+	Doxyfile
 	Makefile
 	po/Makefile.in
 	lib/Makefile
@@ -1396,11 +1014,9 @@ if test x$tuklib_cv_cpucores_method = xunknown; then
 	echo "No supported method to detect the number of CPU cores."
 fi
 
-if test "x$enable_threads$enable_small$have_func_attribute_constructor" \
-		= xnoyesno; then
+if test "x$enable_threads$enable_small" = xnoyes; then
 	echo
 	echo "NOTE:"
-	echo "liblzma will be thread-unsafe due to the combination"
-	echo "of --disable-threads --enable-small when using a compiler"
-	echo "that doesn't support __attribute__((__constructor__))."
+	echo "liblzma will be thread unsafe due the combination"
+	echo "of --disable-threads --enable-small."
 fi

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

@@ -1,205 +0,0 @@
-// SPDX-License-Identifier: 0BSD
-
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file       11_file_info.c
-/// \brief      Get uncompressed size of .xz file(s)
-///
-/// Usage:      ./11_file_info INFILE1.xz [INFILEn.xz]...
-///
-/// Example:    ./11_file_info foo.xz
-//
-//  Author:     Lasse Collin
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#include <stdbool.h>
-#include <inttypes.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <lzma.h>
-
-
-static bool
-print_file_size(lzma_stream *strm, FILE *infile, const char *filename)
-{
-	// Get the file size. In standard C it can be done by seeking to
-	// the end of the file and then getting the file position.
-	// In POSIX one can use fstat() and then st_size from struct stat.
-	// Also note that fseek() and ftell() use long and thus don't support
-	// 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",
-				filename, strerror(errno));
-		return false;
-	}
-
-	const long file_size = ftell(infile);
-
-	// The decoder wants to start from the beginning of the .xz file.
-	rewind(infile);
-
-	// Initialize the decoder.
-	lzma_index *i;
-	lzma_ret ret = lzma_file_info_decoder(strm, &i, UINT64_MAX,
-			(uint64_t)file_size);
-	switch (ret) {
-	case LZMA_OK:
-		// Initialization succeeded.
-		break;
-
-	case LZMA_MEM_ERROR:
-		fprintf(stderr, "Out of memory when initializing "
-				"the .xz file info decoder\n");
-		return false;
-
-	case LZMA_PROG_ERROR:
-	default:
-		fprintf(stderr, "Unknown error, possibly a bug\n");
-		return false;
-	}
-
-	// This example program reuses the same lzma_stream structure
-	// for multiple files, so we need to reset this when starting
-	// a new file.
-	strm->avail_in = 0;
-
-	// Buffer for input data.
-	uint8_t inbuf[BUFSIZ];
-
-	// Pass data to the decoder and seek when needed.
-	while (true) {
-		if (strm->avail_in == 0) {
-			strm->next_in = inbuf;
-			strm->avail_in = fread(inbuf, 1, sizeof(inbuf),
-					infile);
-
-			if (ferror(infile)) {
-				fprintf(stderr,
-					"Error reading from '%s': %s\n",
-					filename, strerror(errno));
-				return false;
-			}
-
-			// We don't need to care about hitting the end of
-			// the file so no need to check for feof().
-		}
-
-		ret = lzma_code(strm, LZMA_RUN);
-
-		switch (ret) {
-		case LZMA_OK:
-			break;
-
-		case LZMA_SEEK_NEEDED:
-			// The cast is safe because liblzma won't ask us to
-			// seek past the known size of the input file which
-			// did fit into a long.
-			//
-			// NOTE: Remember to change these to off_t if you
-			// switch fseeko() or lseek().
-			if (fseek(infile, (long)(strm->seek_pos), SEEK_SET)) {
-				fprintf(stderr, "Error seeking the "
-						"file '%s': %s\n",
-						filename, strerror(errno));
-				return false;
-			}
-
-			// The old data in the inbuf is useless now. Set
-			// avail_in to zero so that we will read new input
-			// from the new file position on the next iteration
-			// of this loop.
-			strm->avail_in = 0;
-			break;
-
-		case LZMA_STREAM_END:
-			// File information was successfully decoded.
-			// See <lzma/index.h> for functions that can be
-			// used on it. In this example we just print
-			// the uncompressed size (in bytes) of
-			// the .xz file followed by its file name.
-			printf("%10" PRIu64 " %s\n",
-					lzma_index_uncompressed_size(i),
-					filename);
-
-			// Free the memory of the lzma_index structure.
-			lzma_index_end(i, NULL);
-
-			return true;
-
-		case LZMA_FORMAT_ERROR:
-			// .xz magic bytes weren't found.
-			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 "
-					"are not supported by this liblzma "
-					"version\n", filename);
-			return false;
-
-		case LZMA_DATA_ERROR:
-			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);
-			return false;
-
-		// LZMA_MEMLIMIT_ERROR shouldn't happen because we used
-		// UINT64_MAX as the limit.
-		//
-		// LZMA_BUF_ERROR shouldn't happen because we always provide
-		// new input when the input buffer is empty. The decoder
-		// knows the input file size and thus won't try to read past
-		// the end of the file.
-		case LZMA_MEMLIMIT_ERROR:
-		case LZMA_BUF_ERROR:
-		case LZMA_PROG_ERROR:
-		default:
-			fprintf(stderr, "Unknown error, possibly a bug\n");
-			return false;
-		}
-	}
-
-	// This line is never reached.
-}
-
-
-extern int
-main(int argc, char **argv)
-{
-	bool success = true;
-	lzma_stream strm = LZMA_STREAM_INIT;
-
-	for (int i = 1; i < argc; ++i) {
-		FILE *infile = fopen(argv[i], "rb");
-
-		if (infile == NULL) {
-			fprintf(stderr, "Cannot open the file '%s': %s\n",
-					argv[i], strerror(errno));
-			success = false;
-		}
-
-		success &= print_file_size(&strm, infile, argv[i]);
-
-		(void)fclose(infile);
-	}
-
-	lzma_end(&strm);
-
-	// Close stdout to catch possible write errors that can occur
-	// when pending data is flushed from the stdio buffers.
-	if (fclose(stdout)) {
-		fprintf(stderr, "Write error: %s\n", strerror(errno));
-		success = false;
-	}
-
-	return success ? EXIT_SUCCESS : EXIT_FAILURE;
-}

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
@@ -9,8 +13,7 @@ PROGS = \
 	01_compress_easy \
 	02_decompress \
 	03_compress_custom \
-	04_compress_easy_mt \
-	11_file_info
+	04_compress_easy_mt
 
 all: $(PROGS)
 

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;
+}
+

doc/faq.txt

@@ -240,5 +240,5 @@ A:  Give --enable-small to the configure script. Use also appropriate
     If the result is still too big, take a look at XZ Embedded. It is
     a separate project, which provides a limited but significantly
     smaller XZ decoder implementation than XZ Utils. You can find it
-    at <https://xz.tukaani.org/xz-embedded/>.
+    at <https://tukaani.org/xz/embedded.html>.
 

doc/lzma-file-format.txt

@@ -40,11 +40,11 @@ The .lzma File Format
 
 0.2. Changes
 
-        Last modified: 2024-01-16 18:00+0800
+        Last modified: 2022-07-13 21:00+0300
 
-        Compared to the previous version (2022-07-13 21:00+0300)
-        the section 2 was modified to change links from http to
-        https and to update XZ links.
+        Compared to the previous version (2011-04-12 11:55+0300)
+        the section 1.1.3 was modified to allow End of Payload Marker
+        with a known Uncompressed Size.
 
 
 1. File Format
@@ -157,17 +157,17 @@ The .lzma File Format
 2. References
 
         LZMA SDK - The original LZMA implementation
-        https://7-zip.org/sdk.html
+        http://7-zip.org/sdk.html
 
         7-Zip
-        https://7-zip.org/
+        http://7-zip.org/
 
         LZMA Utils - LZMA adapted to POSIX-like systems
-        https://tukaani.org/lzma/
+        http://tukaani.org/lzma/
 
         XZ Utils - The next generation of LZMA Utils
-        https://xz.tukaani.org/xz-utils/
+        http://tukaani.org/xz/
 
         The .xz file format - The successor of the .lzma format
-        https://xz.tukaani.org/format/xz-file-format.txt
+        http://tukaani.org/xz/xz-file-format.txt
 

doc/xz-file-format.txt

@@ -2,7 +2,7 @@
 The .xz File Format
 ===================
 
-Version 1.2.0 (2024-01-19)
+Version 1.0.4 (2009-08-27)
 
 
         0. Preface
@@ -81,26 +81,18 @@ Version 1.2.0 (2024-01-19)
 0.2. Getting the Latest Version
 
         The latest official version of this document can be downloaded
-        from <https://xz.tukaani.org/format/xz-file-format.txt>.
+        from <http://tukaani.org/xz/xz-file-format.txt>.
 
         Specific versions of this document have a filename
         xz-file-format-X.Y.Z.txt where X.Y.Z is the version number.
         For example, the version 1.0.0 of this document is available
-        at <https://xz.tukaani.org/format/xz-file-format-1.0.0.txt>.
+        at <http://tukaani.org/xz/xz-file-format-1.0.0.txt>.
 
 
 0.3. Version History
 
         Version   Date          Description
 
-        1.2.0     2024-01-19    Added RISC-V filter and updated URLs in
-                                Sections 0.2 and 7. The URL of this
-                                specification was changed.
-
-        1.1.0     2022-12-11    Added ARM64 filter and clarified 32-bit
-                                ARM endianness in Section 5.3.2,
-                                language improvements in Section 5.4
-
         1.0.4     2009-08-27    Language improvements in Sections 1.2,
                                 2.1.1.2, 3.1.1, 3.1.2, and 5.3.1
 
@@ -923,21 +915,9 @@ Version 1.2.0 (2024-01-19)
               0x04       1 byte     x86 filter (BCJ)
               0x05       4 bytes    PowerPC (big endian) filter
               0x06      16 bytes    IA64 filter
-              0x07       4 bytes    ARM filter [1]
-              0x08       2 bytes    ARM Thumb filter [1]
+              0x07       4 bytes    ARM (little endian) filter
+              0x08       2 bytes    ARM Thumb (little endian) filter
               0x09       4 bytes    SPARC filter
-              0x0A       4 bytes    ARM64 filter [2]
-              0x0B       2 bytes    RISC-V filter
-
-              [1] These are for little endian instruction encoding.
-                  This must not be confused with data endianness.
-                  A processor configured for big endian data access
-                  may still use little endian instruction encoding.
-                  The filters don't care about the data endianness.
-
-              [2] 4096-byte alignment gives the best results
-                  because the address in the ADRP instruction
-                  is a multiple of 4096 bytes.
 
         If the size of Filter Properties is four bytes, the Filter
         Properties field contains the start offset used for address
@@ -1007,12 +987,12 @@ Version 1.2.0 (2024-01-19)
 
 5.4. Custom Filter IDs
 
-        If a developer wants to use custom Filter IDs, there are two
+        If a developer wants to use custom Filter IDs, he has two
         choices. The first choice is to contact Lasse Collin and ask
         him to allocate a range of IDs for the developer.
 
-        The second choice is to generate a 40-bit random integer
-        which the developer can use as a personal Developer ID.
+        The second choice is to generate a 40-bit random integer,
+        which the developer can use as his personal Developer ID.
         To minimize the risk of collisions, Developer ID has to be
         a randomly generated integer, not manually selected "hex word".
         The following command, which works on many free operating
@@ -1020,7 +1000,7 @@ Version 1.2.0 (2024-01-19)
 
             dd if=/dev/urandom bs=5 count=1 | hexdump
 
-        The developer can then use the Developer ID to create unique
+        The developer can then use his Developer ID to create unique
         (well, hopefully unique) Filter IDs.
 
             Bits    Mask                    Description
@@ -1141,30 +1121,30 @@ Version 1.2.0 (2024-01-19)
 7. References
 
         LZMA SDK - The original LZMA implementation
-        https://7-zip.org/sdk.html
+        http://7-zip.org/sdk.html
 
         LZMA Utils - LZMA adapted to POSIX-like systems
-        https://tukaani.org/lzma/
+        http://tukaani.org/lzma/
 
         XZ Utils - The next generation of LZMA Utils
-        https://xz.tukaani.org/xz-utils/
+        http://tukaani.org/xz/
 
         [RFC-1952]
         GZIP file format specification version 4.3
-        https://www.ietf.org/rfc/rfc1952.txt
+        http://www.ietf.org/rfc/rfc1952.txt
           - Notation of byte boxes in section "2.1. Overall conventions"
 
         [RFC-2119]
         Key words for use in RFCs to Indicate Requirement Levels
-        https://www.ietf.org/rfc/rfc2119.txt
+        http://www.ietf.org/rfc/rfc2119.txt
 
         [GNU-tar]
-        GNU tar 1.35 manual
-        https://www.gnu.org/software/tar/manual/html_node/Blocking-Factor.html
+        GNU tar 1.21 manual
+        http://www.gnu.org/software/tar/manual/html_node/Blocking-Factor.html
           - Node 9.4.2 "Blocking Factor", paragraph that begins
             "gzip will complain about trailing garbage"
           - Note that this URL points to the latest version of the
             manual, and may some day not contain the note which is in
-            1.35. For the exact version of the manual, download GNU
-            tar 1.35: ftp://ftp.gnu.org/pub/gnu/tar/tar-1.35.tar.gz
+            1.21. For the exact version of the manual, download GNU
+            tar 1.21: ftp://ftp.gnu.org/pub/gnu/tar/tar-1.21.tar.gz
 

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
@@ -61,7 +62,6 @@ SRCS_C = \
 	../src/liblzma/common/block_header_encoder.c \
 	../src/liblzma/common/block_util.c \
 	../src/liblzma/common/common.c \
-	../src/liblzma/common/file_info.c \
 	../src/liblzma/common/filter_common.c \
 	../src/liblzma/common/filter_decoder.c \
 	../src/liblzma/common/filter_encoder.c \
@@ -72,13 +72,11 @@ SRCS_C = \
 	../src/liblzma/common/index_decoder.c \
 	../src/liblzma/common/index_encoder.c \
 	../src/liblzma/common/index_hash.c \
-	../src/liblzma/common/lzip_decoder.c \
 	../src/liblzma/common/stream_decoder.c \
 	../src/liblzma/common/stream_encoder.c \
 	../src/liblzma/common/stream_flags_common.c \
 	../src/liblzma/common/stream_flags_decoder.c \
 	../src/liblzma/common/stream_flags_encoder.c \
-	../src/liblzma/common/string_conversion.c \
 	../src/liblzma/common/vli_decoder.c \
 	../src/liblzma/common/vli_encoder.c \
 	../src/liblzma/common/vli_size.c \
@@ -98,7 +96,6 @@ SRCS_C = \
 	../src/liblzma/lzma/lzma_encoder_presets.c \
 	../src/liblzma/rangecoder/price_table.c \
 	../src/liblzma/simple/arm.c \
-	../src/liblzma/simple/arm64.c \
 	../src/liblzma/simple/armthumb.c \
 	../src/liblzma/simple/ia64.c \
 	../src/liblzma/simple/powerpc.c \

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
 
@@ -18,9 +16,6 @@
 /* Define to 1 if arm decoder is enabled. */
 #define HAVE_DECODER_ARM 1
 
-/* Define to 1 if arm64 decoder is enabled. */
-#define HAVE_DECODER_ARM64 1
-
 /* Define to 1 if armthumb decoder is enabled. */
 #define HAVE_DECODER_ARMTHUMB 1
 
@@ -51,9 +46,6 @@
 /* Define to 1 if arm encoder is enabled. */
 #define HAVE_ENCODER_ARM 1
 
-/* Define to 1 if arm64 encoder is enabled. */
-#define HAVE_ENCODER_ARM64 1
-
 /* Define to 1 if armthumb encoder is enabled. */
 #define HAVE_ENCODER_ARMTHUMB 1
 
@@ -84,9 +76,6 @@
 /* Define to 1 if you have the <limits.h> header file. */
 #define HAVE_LIMITS_H 1
 
-/* Define to 1 if .lz (lzip) decompression support is enabled. */
-#define HAVE_LZIP_DECODER 1
-
 /* Define to 1 to enable bt2 match finder. */
 #define HAVE_MF_BT2 1
 
@@ -117,14 +106,14 @@
 /* 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.
@@ -145,9 +134,9 @@
 #define PACKAGE_NAME "XZ Utils"
 
 /* Define to the home page for this package. */
-#define PACKAGE_URL "https://xz.tukaani.org/xz-utils/"
+#define PACKAGE_URL "https://tukaani.org/xz/"
 
-/* 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/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

@@ -1,109 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# Updates the Doxygen generated documentation files in the source tree.
-# If the doxygen command is not installed, it will exit with an error.
-# This script can generate Doxygen documentation for all source files or for
-# just liblzma API header files.
-#
-# It is recommended to use this script to update the Doxygen-generated HTML
-# files since this will include the package version in the output and,
-# in case of liblzma API docs, strip JavaScript files from the output.
-#
-#############################################################################
-#
-# Authors: Jia Tan
-#          Lasse Collin
-#
-#############################################################################
-
-set -e
-
-if type doxygen > /dev/null 2>&1; then
-	:
-else
-	echo "doxygen/update-doxygen: 'doxygen' command not found." >&2
-	echo "doxygen/update-doxygen: Skipping Doxygen docs generation." >&2
-	exit 1
-fi
-
-if test ! -f Doxyfile; then
-	cd `dirname "$0"` || exit 1
-	if test ! -f Doxyfile; then
-		echo "doxygen/update-doxygen: Cannot find Doxyfile" >&2
-		exit 1
-	fi
-fi
-
-# Get the package version so that it can be included in the generated docs.
-PACKAGE_VERSION=`cd .. && sh build-aux/version.sh` || exit 1
-
-# If no arguments are specified, default to generating liblzma API header
-# documentation only.
-case $1 in
-	'' | api)
-		# Remove old documentation before re-generating the new.
-		rm -rf ../doc/api
-
-		# Generate the HTML documentation by preparing the Doxyfile
-		# in stdin and piping the result to the doxygen command.
-		# With Doxygen, the last assignment of a value to a tag will
-		# override any earlier assignment. So, we can use this
-		# feature to override the tags that need to change between
-		# "api" and "internal" modes.
-		(
-			cat Doxyfile
-			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
-		) | doxygen -
-
-		# As of Doxygen 1.8.0 - 1.9.6 and the Doxyfile options we use,
-		# the output is good without any JavaScript. Unfortunately
-		# Doxygen doesn't have an option to disable JavaScript usage
-		# completely so we strip it away with the hack below.
-		#
-		# Omitting the JavaScript code avoids some license hassle
-		# as jquery.js is fairly big, it contains more than jQuery
-		# itself, and doesn't include the actual license text (it
-		# only refers to the MIT license by name).
-		echo "Stripping JavaScript from Doxygen output..."
-		for F in ../doc/api/*.html
-		do
-			sed 's/<script [^>]*><\/script>//g
-				s/onclick="[^"]*"//g' \
-				"$F" > ../doc/api/tmp
-			mv -f ../doc/api/tmp "$F"
-		done
-		rm -f ../doc/api/*.js
-		;;
-
-	internal)
-		# The docs from internal aren't for distribution so
-		# the JavaScript files aren't an issue here.
-		rm -rf ../doc/internal
-		(
-			cat Doxyfile
-			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
-			echo 'PROJECT_NAME           = "XZ Utils"'
-			echo 'STRIP_FROM_PATH        = ../src'
-			echo 'INPUT                  = ../src'
-			echo 'HTML_OUTPUT            = internal'
-			echo 'EXTRACT_PRIVATE        = YES'
-			echo 'EXTRACT_STATIC         = YES'
-			echo 'EXTRACT_LOCAL_CLASSES  = YES'
-			echo 'SEARCHENGINE           = YES'
-		) | doxygen -
-		;;
-
-	*)
-		echo "doxygen/update-doxygen: Error: mode argument '$1'" \
-			"is not supported." >&2
-		echo "doxygen/update-doxygen: Supported modes:" >&2
-		echo "doxygen/update-doxygen: - 'api' (default):" \
-			"liblzma API docs into doc/api" >&2
-		echo "doxygen/update-doxygen: - 'internal':"\
-			"internal docs into doc/internal" >&2
-		exit 1
-		;;
-esac

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 = \
-	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
-
+EXTRA_DIST = getopt.in.h getopt.c getopt1.c getopt_int.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.
-   This file is part of gnulib.
-   Unlike most of the getopt implementation, it is NOT shared
-   with the GNU C Library, which supplies a different version of
-   this file.
+   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005,2006,2007
+   Free Software Foundation, Inc.
+   This file is part of 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 program 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, or (at your option)
+   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
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+   You should have received a copy of the GNU Lesser General Public License along
+   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
 
-#define _GETOPT_H 1
+#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
+# include <unistd.h>
+# 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: */
-/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
-   that the values passed as arguments n, ..., m must be non-NULL pointers.
-   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
-#ifndef _GL_ARG_NONNULL
-# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
-#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+/* Standalone applications get correct prototypes for getopt_long and
+   getopt_long_only; they declare "char **argv".  libc uses prototypes
+   with "char *const *argv" that are incorrect because getopt_long and
+   getopt_long_only can permute argv; this is required for backward
+   compatibility (e.g., for LSB 2.0.1).
+
+   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>
-#include <getopt-pfx-core.h>
-#include <getopt-pfx-ext.h>
+/* If __GNU_LIBRARY__ is not already defined, either we are being used
+   standalone, or this is the first header included in the source file.
+   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.
-   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.
+   Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006
+     Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-   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.
+   This program 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, or (at your option)
+   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
-   Lesser General Public License for more details.
+   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/>.  */
+   You should have received a copy of the GNU Lesser General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _LIBC
-# ifdef HAVE_CONFIG_H
-#  include <config.h>
-# endif
+#ifdef _LIBC
+# 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"
-#include "getopt_int.h"
+#ifndef	NULL
+#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

@@ -1,64 +1,34 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
 /* Internal declarations for getopt.
-   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.
+   Copyright (C) 1989-1994,1996-1999,2001,2003,2004
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-   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.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   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
-   Lesser General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU 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/>.  */
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   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,
+		             const struct option *__longopts, int *__longind,
 			     int __long_only, int __posixly_correct);
 
 
 /* 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.  */
-  enum __ord __ordering;
+  /* Describe how to deal with options that follow non-option ARGV-elements.
+
+     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
-     of them; 'last_nonopt' is the index after the last of them.  */
+     been skipped.  `first_nonopt' is the index in ARGV of the first
+     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 __posixly_correct);
+			       int __long_only, 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 49 (modified version)
-dnl Copyright (C) 2002-2006, 2008-2023 Free Software Foundation, Inc.
+# getopt.m4 serial 14 (modified version)
+dnl Copyright (C) 2002-2006, 2008 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
-# GNU getopt_long and do not care about replacing getopt.
+# The getopt module assume you want GNU getopt, with getopt_long etc,
+# 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
-# options with optional arguments) and the functions getopt_long,
-# getopt_long_only.
-AC_DEFUN([gl_FUNC_GETOPT_GNU],
+AC_DEFUN([gl_GETOPT_SUBSTITUTE],
 [
-  AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+  AC_LIBOBJ([getopt])
+  AC_LIBOBJ([getopt1])
+  gl_GETOPT_SUBSTITUTE_HEADER
+])
 
-  if test -n "$gl_replace_getopt"; then
-    gl_GETOPT_SUBSTITUTE
-  fi
+AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
+[
+  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 "$gl_replace_getopt"; then
-    AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes])
+  if test -z "$GETOPT_H"; then
+    AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
   fi
 
-  if test -z "$gl_replace_getopt"; then
-    AC_CHECK_FUNCS([getopt_long], [], [gl_replace_getopt=yes])
+  if test -z "$GETOPT_H"; then
+    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 http://austingroupbugs.net/view.php?id=191 for a recommendation on
-  dnl the next version of POSIX.  We don't use that feature, so this
+  dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
+  dnl option string (as of 2005-05-05). 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_LIBOBJ([getopt1])
-
-  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_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+  AS_IF([test -n "$GETOPT_H"], [$1], [$2])
 ])
 
-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
+#   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
+#   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])
@@ -96,6 +95,7 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #ifdef __QNX__
 compile error
 #endif
+#include <sys/types.h>
 #ifdef HAVE_SYS_PARAM_H
 #	include <sys/param.h>
 #endif

m4/tuklib_integer.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -11,14 +8,16 @@
 #   Checks for tuklib_integer.h:
 #     - Endianness
 #     - Does the compiler or the operating system provide byte swapping macros
-#     - Does the hardware support fast unaligned access to 16-bit, 32-bit,
-#       and 64-bit integers
+#     - Does the hardware support fast unaligned access to 16-bit
+#       and 32-bit integers
 #
-#############################################################################
+# COPYING
 #
-# Author: Lasse Collin
+#   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])
@@ -65,48 +64,16 @@ main(void)
 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,
-		32/64-bit big endian PowerPC,
-		64-bit little endian PowerPC,
-		and some ARM, ARM64, and RISC-V systems.]),
+		with 16-bit and 32-bit integers. By default, this is enabled
+		only on x86, x86_64, and big endian PowerPC.]),
 	[], [enable_unaligned_access=auto])
 if test "x$enable_unaligned_access" = xauto ; then
-	# NOTE: There might be other architectures on which unaligned access
-	# is fast.
+	# TODO: There may be other architectures, on which unaligned access
+	# is OK.
 	case $host_cpu in
-		i?86|x86_64|powerpc|powerpc64|powerpc64le)
+		i?86|x86_64|powerpc|powerpc64)
 			enable_unaligned_access=yes
 			;;
-		arm*|aarch64*|riscv*)
-			# On 32-bit and 64-bit ARM, GCC and Clang
-			# #define __ARM_FEATURE_UNALIGNED if
-			# unaligned access is supported.
-			#
-			# Exception: GCC at least up to 13.2.0
-			# defines it even when using -mstrict-align
-			# so in that case this autodetection goes wrong.
-			# Most of the time -mstrict-align isn't used so it
-			# shouldn't be a common problem in practice. See:
-			# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
-			#
-			# RISC-V C API Specification says that if
-			# __riscv_misaligned_fast is defined then
-			# unaligned access is known to be fast.
-			#
-			# MSVC is handled as a special case: We assume that
-			# 32/64-bit ARM supports fast unaligned access.
-			# If MSVC gets RISC-V support then this will assume
-			# fast unaligned access on RISC-V too.
-			AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-#if !defined(__ARM_FEATURE_UNALIGNED) \
-		&& !defined(__riscv_misaligned_fast) \
-		&& !defined(_MSC_VER)
-compile error
-#endif
-int main(void) { return 0; }
-])], [enable_unaligned_access=yes], [enable_unaligned_access=no])
-			;;
 		*)
 			enable_unaligned_access=no
 			;;
@@ -114,8 +81,8 @@ int main(void) { return 0; }
 fi
 if test "x$enable_unaligned_access" = xyes ; then
 	AC_DEFINE([TUKLIB_FAST_UNALIGNED_ACCESS], [1], [Define to 1 if
-		the system supports fast unaligned access to 16-bit,
-		32-bit, and 64-bit integers.])
+		the system supports fast unaligned access to 16-bit and
+		32-bit integers.])
 	AC_MSG_RESULT([yes])
 else
 	AC_MSG_RESULT([no])

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
+#   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
+#   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])
@@ -89,6 +88,7 @@ main(void)
 ]])], [tuklib_cv_physmem_method=sysconf], [
 
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
 #ifdef HAVE_SYS_PARAM_H
 #	include <sys/param.h>
 #endif

m4/tuklib_progname.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -14,16 +11,15 @@
 #   This .m4 file is needed allow this module to use glibc's
 #   program_invocation_name.
 #
-#############################################################################
+# COPYING
 #
-# Author: Lasse Collin
+#   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>.])],
-	[], [#include <errno.h>])
+AC_CHECK_DECLS([program_invocation_name], [], [], [#include <errno.h>])
 ])dnl

m4/visibility.m4

@@ -1,7 +1,5 @@
-dnl SPDX-License-Identifier: FSFULLR
-
-# visibility.m4 serial 8
-dnl Copyright (C) 2005, 2008, 2010-2023 Free Software Foundation, Inc.
+# visibility.m4 serial 6
+dnl Copyright (C) 2005, 2008, 2010-2020 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.
@@ -60,11 +58,6 @@ AC_DEFUN([gl_VISIBILITY],
               extern __attribute__((__visibility__("default"))) int exportedvar;
               extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
               extern __attribute__((__visibility__("default"))) int exportedfunc (void);
-              void dummyfunc (void);
-              int hiddenvar;
-              int exportedvar;
-              int hiddenfunc (void) { return 51; }
-              int exportedfunc (void) { return 1225736919; }
               void dummyfunc (void) {}
             ]],
             [[]])],

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
-
-# 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
+COPYRIGHT_HOLDER =
 
 # 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'
-# context.  Possible values are "yes" and "no".  Set this to yes if the
-# package uses functions taking also a message context, like pgettext(), or
-# if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
-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
+# Although you may need slightly wider terminal than 80 chars, it is
+# much nicer to edit the output of --help when this is set.
+XGETTEXT_OPTIONS += --no-wrap
+MSGMERGE += --no-wrap

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