.codespellrc

@@ -1,12 +1,9 @@
-# SPDX-License-Identifier: 0BSD
-
 [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.
-# THANKS contains names, some do trigger codespell.
+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
-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,THANKS
 
 # Ignore false positive matching words. Ideally codespell would allow
 # ignoring words for specific files, but that does not appear to be
@@ -25,6 +22,3 @@ 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
-
-# Ignore a URL with debbugs.
-ignore-regex = \bhttps://debbugs\.gnu\.org\b

.gitattributes

@@ -1,8 +0,0 @@
-.gitattributes export-ignore
-.gitignore export-ignore
-
-/.codespellrc export-ignore
-/.github export-ignore
-
-/build-aux/ci_build.bash export-ignore
-/doc/SHA256SUMS export-ignore

.github/SECURITY.md

@@ -0,0 +1,29 @@
+# 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. In any case, please
+provide a clear description of the vulnerability including:
+
+- Affected versions of XZ Utils
+- Estimated severity (low, moderate, high, critical)
+- Steps to recreate the vulnerability
+- All relevant files (core dumps, build logs, input files, etc.)
+
+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

@@ -1,9 +1,10 @@
-# SPDX-License-Identifier: 0BSD
-
 #############################################################################
 #
 # Author: Jia Tan
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 name: CI
@@ -18,34 +19,26 @@ on:
   # Allows running workflow manually
   workflow_dispatch:
 
-permissions: {}
-
 jobs:
   POSIX:
     strategy:
       matrix:
-        os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest]
+        os: [ubuntu-latest, macos-latest]
         build_system: [autotools, cmake]
     runs-on: ${{ matrix.os }}
-    timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 #v4.1.0
 
       ########################
       # Install Dependencies #
       ########################
 
       # Install Autotools on Linux
-      - name: Install Dependencies
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y autoconf automake build-essential po4a autopoint doxygen musl-tools valgrind
-
       - name: Install Dependencies
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
         run: |
-            sudo apt-get install -y gcc-multilib
+            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
@@ -54,15 +47,15 @@ jobs:
 
       # Install CMake on Linux
       - name: Install Dependencies
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'cmake' }}
+        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'cmake' }}
         run: |
             sudo apt-get update
-            sudo apt-get install -y build-essential cmake gettext doxygen musl-tools
+            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 gettext doxygen
+        run: brew install cmake
 
       ##################
       # Build and Test #
@@ -78,93 +71,90 @@ jobs:
       # done first.
       - name: Build 32-bit
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.bash -b autotools -p build -m "gcc -m32"
+        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.bash -b autotools -p test -m "gcc -m32" -n 32_bit
+            ./build-aux/ci_build.sh -b autotools -p test -f "-m32" -n 32_bit
             cd ../xz_build && make distclean
 
-      # The sandbox must be disabled because it will prevent access to
+      # 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: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
+        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.bash -b autotools -p build -f "-fsanitize=address,undefined" -d sandbox
+        run: ./build-aux/ci_build.sh -b autotools -p build -f "-fsanitize=address,undefined" -d ifunc,sandbox
       - name: Test with -fsanitize=address,undefined
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
+        if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
         run: |
-            export UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=1
+            ./build-aux/ci_build.sh -b autotools -p test -f "-fsanitize=address,undefined" -d ifunc,sandbox
-            ./build-aux/ci_build.bash -b autotools -p test -f "-fsanitize=address,undefined" -d sandbox
-            cd ../xz_build && make distclean
-
-      - name: Build with Valgrind
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.bash -b autotools -p build -d shared,sandbox
-      - name: Test with Valgrind
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
-        run: |
-            ./build-aux/ci_build.bash -b autotools -p test -d sandbox -w "valgrind --quiet --trace-children=yes --trace-children-skip=*/cmp,*/cp,*/diff,*/grep,*/rm,*/sed --exit-on-first-error=yes --error-exitcode=1"
             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: ${{ startsWith(matrix.os, 'ubuntu') }}
+        if: ${{ matrix.os == 'ubuntu-latest'}}
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -p build -m "/usr/bin/musl-gcc"
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p build -m "/usr/bin/musl-gcc"
       - name: Test with musl libc
-        if: ${{ startsWith(matrix.os, 'ubuntu') }}
+        if: ${{ matrix.os == 'ubuntu-latest'}}
         run: |
-            ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -p test -m "/usr/bin/musl-gcc"
+            ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p test -m "/usr/bin/musl-gcc"
       - name: Clean up musl libc run
-        if: ${{ startsWith(matrix.os, 'ubuntu') && matrix.build_system == 'autotools' }}
+        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.bash -b ${{ matrix.build_system }} -p build
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -p build
       - name: Test with full features
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -p test -n 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.bash -b ${{ matrix.build_system }} -d encoders,shared -p build
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d encoders,shared -p build
       - name: Test without encoders
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -d encoders,shared -p test -n no_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.bash -b ${{ matrix.build_system }} -d decoders,shared -p build
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d decoders,shared -p build
       - name: Test without decoders
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -d decoders,shared -p test -n no_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.bash -b ${{ matrix.build_system }} -d threads,shared -p build
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d threads,shared -p build
       - name: Test without threads
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -d threads,shared -p test -n no_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.bash -b ${{ matrix.build_system }} -d bcj,shared,nls -p build
+        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.bash -b ${{ matrix.build_system }} -d bcj,shared,nls -p test -n no_bcj
+        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.bash -b ${{ matrix.build_system }} -d delta,shared,nls -p build
+        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.bash -b ${{ matrix.build_system }} -d delta,shared,nls -p test -n no_delta
+        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.bash -b ${{ matrix.build_system }} -c crc32,crc64 -d shared,nls -p build
+        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.bash -b ${{ matrix.build_system }} -c crc32,crc64 -d shared,nls -p test -n no_sha256
+        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.bash -b ${{ matrix.build_system }} -c crc32,sha256 -d shared,nls -p build
+        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.bash -b ${{ matrix.build_system }} -c crc32,sha256 -d shared,nls -p test -n no_crc64
+        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.bash -b ${{ matrix.build_system }} -d small -p build
+        run: ./build-aux/ci_build.sh -b ${{ matrix.build_system }} -d small -p build
       - name: Test small
-        run: ./build-aux/ci_build.bash -b ${{ matrix.build_system }} -d small -p test -n 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@v4
+      - uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 #v4.0.0
         if: ${{ failure() }}
         with:
           name: ${{ matrix.os }} ${{ matrix.build_system }} Test Logs

.github/workflows/cifuzz.yml

@@ -1,55 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-# Authors: Sam James
-#          Lasse Collin
-#
-# This was written based on the OSS-Fuzz docs:
-# https://google.github.io/oss-fuzz/getting-started/continuous-integration/
-
-name: CIFuzz
-
-on:
-  push:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  CIFuzz:
-    runs-on: ubuntu-latest
-    timeout-minutes: 30
-
-    strategy:
-      fail-fast: false
-      matrix:
-        sanitizer: [ address, undefined, memory ]
-
-    steps:
-    - name: Build Fuzzers (${{ matrix.sanitizer }})
-      id: build
-      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
-      with:
-        oss-fuzz-project-name: 'xz'
-        # The language must match the one in project.yaml in OSS-Fuzz:
-        # https://github.com/google/oss-fuzz/blob/master/projects/xz/project.yaml
-        # Thus, use C++ even though there are no C++ files in XZ Utils.
-        language: c++
-        sanitizer: ${{ matrix.sanitizer }}
-
-    - name: Run Fuzzers (${{ matrix.sanitizer }})
-      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
-      with:
-        oss-fuzz-project-name: 'xz'
-        language: c++
-        sanitizer: ${{ matrix.sanitizer }}
-        fuzz-seconds: 600
-        report-timeouts: true
-        report-ooms: true
-
-    - name: Upload Crash
-      uses: actions/upload-artifact@v4
-      if: failure() && steps.build.outcome == 'success'
-      with:
-        name: ${{ matrix.sanitizer }}-artifacts
-        path: ./out/artifacts

.github/workflows/coverity.yml

@@ -1,38 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: Coverity Scan
-
-# We only want to test a special branch, per
-# https://docs.travis-ci.com/user/coverity-scan/#build-submission-frequency
-on:
-  push:
-    branches: [coverity_scan]
-
-jobs:
-  coverity:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Install dependencies
-      run: |
-        sudo apt-get update -q
-        sudo apt-get install -qy autoconf automake build-essential autopoint gcc-multilib
-
-    - name: Run autogen.sh
-      run: ./autogen.sh --no-po4a
-
-    - name: Run configure
-      run: ./configure --enable-debug --disable-silent-rules
-
-    # Coverity doesn't understand what the inline asm does,
-    # which results in false positives.
-    - name: Disable complex inline assembly code
-      run: echo '#define LZMA_RANGE_DECODER_CONFIG 0' >> config.h
-
-    - name: Coverity Scan
-      uses: vapier/coverity-scan-action@2068473c7bdf8c2fb984a6a40ae76ee7facd7a85 # v1.8.0
-      with:
-        command: make -Oline -j$(nproc)
-        email: ${{ secrets.COVERITY_SCAN_EMAIL }}
-        token: ${{ secrets.COVERITY_SCAN_TOKEN }}

.github/workflows/dragonflybsd.yml

@@ -1,40 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: DragonFly BSD
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  DragonflyBSD:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    name: DragonFly BSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in DragonFly BSD
-        id: test
-        uses: vmactions/dragonflybsd-vm@4ffb90652b45abc8156f89ede453c85f7ea257bb #v1.1.4
-        with:
-          usesh: true
-          prepare: >
-            pkg install -y
-            autoconf
-            automake
-            gettext-tools
-            libtool
-            m4
-          run: |
-            set -e
-            uname -a
-            ./autogen.sh --no-po4a
-            # Innocent putc() triggers strict-overflow warnings.
-            ./configure --disable-static --enable-debug --enable-werror CFLAGS='-g -O2 -pipe -Wno-error=strict-overflow'
-            make -j4 check

.github/workflows/freebsd.yml

@@ -1,58 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: FreeBSD
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  FreeBSD:
-    strategy:
-      matrix:
-        include:
-          - host: ubuntu-latest
-            version: 12.4
-            arch: x86_64
-          - host: ubuntu-latest
-            version: 15.0
-            arch: x86_64
-          # NOTE: Comment in the repo says that aarch64 VM is faster
-          # on x86_64 host compared to ubuntu-24.04-arm.
-          # - host: ubuntu-24.04-arm
-          #   version: 15.0
-          #   arch: aarch64
-
-    runs-on: ${{ matrix.host }}
-    timeout-minutes: 10
-
-    name: FreeBSD
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in FreeBSD
-        uses: vmactions/freebsd-vm@670398e4236735b8b65805c3da44b7a511fb8b27 #v1.3.0
-        with:
-          release: ${{ matrix.release }}
-          arch: ${{ matrix.arch }}
-          usesh: true
-          prepare: >
-            pkg install -y
-            autoconf
-            automake
-            gettext-tools
-            libtool
-            m4
-            po4a
-          run: |
-            set -e
-            uname -a
-            ./autogen.sh
-            ./configure --disable-static --enable-debug --enable-werror
-            make -j4 check

.github/workflows/msvc.yml

@@ -1,138 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-# Author: Lasse Collin
-
-name: Windows-MSVC
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  MSVC:
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ windows-latest ]
-
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 10
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Configure Win32
-        run: >
-          cmake
-          -A Win32
-          -B build-msvc-win32
-
-      - name: Build Win32 Debug
-        run: >
-          cmake
-          --build build-msvc-win32
-          --config Debug
-
-      - name: Test Win32 Debug
-        run: >
-          ctest
-          --test-dir build-msvc-win32
-          --build-config Debug
-          --output-on-failure
-
-      - name: Build Win32 Release
-        run: >
-          cmake
-          --build build-msvc-win32
-          --config Release
-
-      # This fails with VS 2019 without b5a5d9e3f702.
-      - name: Test Win32 Release
-        run: >
-          ctest
-          --test-dir build-msvc-win32
-          --build-config Release
-          --output-on-failure
-
-      - name: Configure x64
-        run: >
-          cmake
-          -A x64
-          -B build-msvc-x64
-
-      - name: Build x64 Debug
-        run: >
-          cmake
-          --build build-msvc-x64
-          --config Debug
-
-      - name: Test x64 Debug
-        run: >
-          ctest
-          --test-dir build-msvc-x64
-          --build-config Debug
-          --output-on-failure
-
-      - name: Build x64 Release
-        run: >
-          cmake
-          --build build-msvc-x64
-          --config Release
-
-      - name: Test x64 Release
-        run: >
-          ctest
-          --test-dir build-msvc-x64
-          --build-config Release
-          --output-on-failure
-
-      - name: Configure ClangCL x64
-        run: >
-          cmake
-          -T ClangCL
-          -A x64
-          -B build-clangcl-x64
-          -DCMAKE_C_FLAGS="
-            -Wno-cast-align
-            -Wno-cast-qual
-            -Wno-covered-switch-default
-            -Wno-declaration-after-statement
-            -Wno-deprecated-declarations
-            -Wno-disabled-macro-expansion
-            -Wno-nonportable-system-include-path
-            -Wno-overlength-strings
-            -Wno-pre-c11-compat
-            -Wno-reserved-identifier
-            -Wno-unsafe-buffer-usage
-            -Wno-used-but-marked-unused"
-
-      - name: Build ClangCL x64 Debug
-        run: >
-          cmake
-          --build build-clangcl-x64
-          --config Debug
-
-      - name: Test ClangCL x64 Debug
-        run: >
-          ctest
-          --test-dir build-clangcl-x64
-          --build-config Debug
-          --output-on-failure
-
-      - name: Build ClangCL x64 Release
-        run: >
-          cmake
-          --build build-clangcl-x64
-          --config Release
-
-      - name: Test ClangCL x64 Release
-        run: >
-          ctest
-          --test-dir build-clangcl-x64
-          --build-config Release
-          --output-on-failure

.github/workflows/msys2.yml

@@ -1,148 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
-#
-# Authors: Jia Tan
-#          Lasse Collin
-#
-#############################################################################
-
-name: Windows-MSYS2
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  MSYS2:
-    strategy:
-      fail-fast: false
-      matrix:
-        runner: [ windows-latest ]
-        sys: [ mingw32, ucrt64, clang64, msys ]
-        include:
-          - runner: windows-11-arm
-            sys: clangarm64
-
-    # 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: ${{ matrix.runner }}
-    timeout-minutes: 20
-
-    steps:
-      - name: Setup MSYS2
-        if: ${{ matrix.sys == 'msys' }}
-        uses: msys2/setup-msys2@fb197b72ce45fb24f17bf3f807a388985654d1f2 # v2.29.0
-        with:
-          msystem: ${{ matrix.sys }}
-          update: true
-          install: >
-            make
-            ninja
-            autotools
-            cmake
-            base-devel
-            gettext-devel
-            gcc
-
-      - name: Setup MSYS2
-        if: ${{ matrix.sys != 'msys' }}
-        uses: msys2/setup-msys2@fb197b72ce45fb24f17bf3f807a388985654d1f2 # v2.29.0
-        with:
-          msystem: ${{ matrix.sys }}
-          update: true
-          pacboy: >
-            make:p
-            ninja:p
-            autotools:p
-            cmake:p
-            toolchain:p
-            gettext:p
-
-      - name: Git configuration
-        # 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@v4
-
-      - name: CMake (full, shared)
-        run: |
-          set -e
-          cmake -G Ninja -B b-cmake-full \
-              -DBUILD_SHARED_LIBS=ON \
-              -DCMAKE_C_FLAGS='-UNDEBUG -g -O2 -pipe' \
-              -DCMAKE_COMPILE_WARNING_AS_ERROR=ON \
-              ${{ startsWith(matrix.sys, 'mingw') && '-DXZ_NLS=OFF' || '' }}
-          ninja -C b-cmake-full
-          ctest --test-dir b-cmake-full --output-on-failure
-
-      - name: CMake (small, static)
-        if: ${{ matrix.runner == 'windows-latest' }}
-        run: |
-          set -e
-          cmake -G Ninja -B b-cmake-small \
-              -DBUILD_SHARED_LIBS=OFF \
-              -DCMAKE_C_FLAGS='-UNDEBUG -g -Os -pipe' \
-              -DCMAKE_COMPILE_WARNING_AS_ERROR=ON \
-              -DXZ_SMALL=ON \
-              -DXZ_THREADS=no \
-              -DXZ_NLS=OFF
-          ninja -C b-cmake-small
-          ctest --test-dir b-cmake-small --output-on-failure
-
-      - name: autogen.sh
-        run: ./autogen.sh --no-po4a
-
-      - name: Autotools (full, shared)
-        run: |
-          set -e
-          mkdir b-autotools-full
-          cd b-autotools-full
-          ../configure \
-              --enable-debug \
-              --enable-werror \
-              --disable-static \
-              ${{ startsWith(matrix.sys, 'mingw') && '--disable-nls' || '' }}
-          make -j"$(nproc)" check
-
-      - name: Autotools (small, static)
-        if: ${{ matrix.runner == 'windows-latest' }}
-        run: |
-          set -e
-          mkdir b-autotools-small
-          cd b-autotools-small
-          ../configure \
-              --enable-debug \
-              --enable-werror \
-              --disable-shared \
-              --enable-small \
-              --disable-threads \
-              --disable-nls \
-              CFLAGS='-g -Os'
-          make -j"$(nproc)" check
-
-      # Upload the test logs as artifacts if any step has failed.
-      - uses: actions/upload-artifact@v4
-        if: failure()
-        with:
-          name: test-logs-${{ matrix.sys }}
-          path: |
-            b-cmake-*/Testing/Temporary/
-            b-cmake-*/test_*/
-            b-autotools-*/tests/*.log
-            b-autotools-*/tests/*output

.github/workflows/netbsd.yml

@@ -1,40 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: NetBSD
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  NetBSD:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    name: NetBSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in NetBSD
-        id: test
-        uses: vmactions/netbsd-vm@b24ed5f7a605362ab1226e73df291c8b01990c85 #v1.2.3
-        with:
-          usesh: true
-          prepare: >
-            /usr/sbin/pkg_add -v
-            cmake
-            gettext-tools
-            ninja-build
-            po4a
-          run: |
-            set -e
-            uname -a
-            ./po4a/update-po
-            # Innocent putc() triggers strict-overflow warnings.
-            cmake -G Ninja -B build -DBUILD_SHARED_LIBS=ON -DCMAKE_C_FLAGS='-UNDEBUG -g -O2 -pipe -Wno-error=strict-overflow' -DCMAKE_COMPILE_WARNING_AS_ERROR=ON
-            ninja -C build
-            ctest --test-dir build --output-on-failure

.github/workflows/openbsd.yml

@@ -1,40 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: OpenBSD
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  OpenBSD:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    name: OpenBSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in OpenBSD
-        uses: vmactions/openbsd-vm@2e29de1eb150dfe1c9c97b84ff2b7896f14ca690 #v1.2.5
-        with:
-          usesh: true
-          prepare: >
-            /usr/sbin/pkg_add -I -v
-            autoconf-2.72p0
-            automake-1.17
-            gettext-tools
-            libtool
-            m4
-          run: |
-            set -e
-            export AUTOCONF_VERSION=2.72
-            export AUTOMAKE_VERSION=1.17
-            uname -a
-            ./autogen.sh --no-po4a
-            ./configure --disable-static --enable-debug --enable-werror --disable-nls --enable-external-sha256
-            make -j4 check

.github/workflows/solaris.yml

@@ -1,34 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: Solaris
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  Solaris:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    name: Solaris
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in Solaris
-        uses: vmactions/solaris-vm@47bea106d03acaf91084e52548ee460556011602 #v1.1.8
-        with:
-          release: 11.4-gcc
-          usesh: true
-          run: |
-            set -e
-            uname -a
-            # /usr/xpg4/bin isn't in PATH by default.
-            echo "Environment variable PATH: $PATH"
-            ./autogen.sh --no-po4a
-            ./configure --disable-static --enable-debug --enable-werror
-            make check

.github/workflows/windows-ci.yml

@@ -0,0 +1,125 @@
+#############################################################################
+#
+# Author: Jia Tan
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
+#############################################################################
+
+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

@@ -15,6 +15,7 @@ Makefile.in
 
 /ABOUT-NLS
 /autom4te.cache
+/Doxyfile
 /aclocal.m4
 /config.h
 /config.h.in
@@ -40,10 +41,6 @@ coverage
 /doc/internal
 /doc/api
 
-/po4a/man
-/po4a/xz-man.pot
-/po4a/*.po.authors
-
 /src/liblzma/liblzma.pc
 /src/lzmainfo/lzmainfo
 /src/xz/xz
@@ -70,7 +67,6 @@ coverage
 /tests/test_index
 /tests/test_index_hash
 /tests/test_lzip_decoder
-/tests/test_microlzma
 /tests/test_memlimit
 /tests/test_stream_flags
 /tests/test_vli
@@ -97,17 +93,21 @@ coverage
 /DartConfiguration.tcl
 /liblzma-config-version.cmake
 /liblzma-config.cmake
+/lzcat
+/lzcat.1
+/lzma
+/lzma.1
 /Testing
 /tests_bin/
+/unlzma
+/unlzma.1
+/unxz
+/unxz.1
 /xz
+/xzcat
+/xzcat.1
 /xzdec
-/lzmadec
-/lzmainfo
-/xzdiff
-/xzgrep
-/xzless
-/xzmore
-/liblzma.pc
-/*.gmo
 
+/windows/*/.vs
+/windows/*/liblzma.vcxproj.user
 /.vscode/

AUTHORS

@@ -2,20 +2,22 @@
 Authors of XZ Utils
 ===================
 
-    XZ Utils is developed and maintained by
+    XZ Utils is developed and maintained by Lasse Collin
-    Lasse Collin <lasse.collin@tukaani.org>.
+    <lasse.collin@tukaani.org> and Jia Tan <jiat0218@gmail.com>.
 
     Major parts of liblzma are based on code written by Igor Pavlov,
     specifically the LZMA SDK <https://7-zip.org/sdk.html>. Without
     this code, XZ Utils wouldn't exist.
 
-    The SHA-256 implementation in liblzma is based on code written by
+    The SHA-256 implementation in liblzma is based on the code found from
-    Wei Dai in Crypto++ Library <https://www.cryptopp.com/>.
+    7-Zip <https://7-zip.org/>, which has a modified version of the SHA-256
+    code found from Crypto++ <https://www.cryptopp.com/>. The SHA-256 code
+    in Crypto++ was written by Kevin Springle and Wei Dai.
 
-    A few scripts have been adapted from GNU gzip. The original
+    Some scripts have been adapted from gzip. The original versions
-    versions were written by Jean-loup Gailly, Charles Levert, and
+    were written by Jean-loup Gailly, Charles Levert, and Paul Eggert.
-    Paul Eggert. Andrew Dudman helped adapting the scripts and their
+    Andrew Dudman helped adapting the scripts and their man pages for
-    man pages for XZ Utils.
+    XZ Utils.
 
     The initial version of the threaded .xz decompressor was written
     by Sebastian Andrzej Siewior.
@@ -23,36 +25,15 @@ Authors of XZ Utils
     The initial version of the .lz (lzip) decoder was written
     by Michał Górny.
 
-    Architecture-specific CRC optimizations were contributed by
+    CLMUL-accelerated CRC code was contributed by Ilya Kurdyukov.
-    Ilya Kurdyukov, Chenxi Mao, and Xi Ruoyao.
 
     Other authors:
       - Jonathan Nieder
       - Joachim Henke
 
-    Special author: Jia Tan was a co-maintainer in 2022-2024. He and
+    The GNU Autotools-based build system contains files from many authors,
-    the team behind him inserted a backdoor (CVE-2024-3094) into
+    which I'm not trying to list here.
-    XZ Utils 5.6.0 and 5.6.1 releases. He suddenly disappeared when
-    this was discovered.
 
-    Many people have contributed improvements or reported bugs.
+    Several people have contributed fixes or reported bugs. Most of them
-    Most of these people are mentioned in the file THANKS.
+    are mentioned in the file THANKS.
-
-    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.
 

COPYING

@@ -3,68 +3,80 @@ XZ Utils Licensing
 ==================
 
     Different licenses apply to different files in this package. Here
-    is a summary of which licenses apply to which parts of this package:
+    is a rough summary of which licenses apply to which parts of this
+    package (but check the individual files to be sure!):
 
-      - liblzma is under the BSD Zero Clause License (0BSD).
+      - liblzma is in the public domain.
 
-      - The command line tools xz, xzdec, lzmadec, and lzmainfo are
+      - xz, xzdec, and lzmadec command line tools are in the public
-        under 0BSD except that, on systems that don't have a usable
+        domain unless GNU getopt_long had to be compiled and linked
-        getopt_long, GNU getopt_long is compiled and linked in from the
+        in from the lib directory. The getopt_long code is under
-        'lib' directory. The getopt_long code is under GNU LGPLv2.1+.
+        GNU LGPLv2.1+.
 
       - The scripts to grep, diff, and view compressed files have been
-        adapted from GNU gzip. These scripts (xzgrep, xzdiff, xzless,
+        adapted from gzip. These scripts and their documentation are
-        and xzmore) are under GNU GPLv2+. The man pages of the scripts
+        under GNU GPLv2+.
-        are under 0BSD; they aren't based on the man pages of GNU gzip.
 
-      - Most of the XZ Utils specific documentation that is in
+      - All the documentation in the doc directory and most of the
-        plain text files (like README, INSTALL, PACKAGERS, NEWS,
+        XZ Utils specific documentation files in other directories
-        and ChangeLog) are under 0BSD unless stated otherwise in
+        are in the public domain.
-        the file itself. The files xz-file-format.txt and
-        lzma-file-format.xt are in the public domain but may
-        be distributed under the terms of 0BSD too.
 
-      - Translated messages and man pages are under 0BSD except that
+        Note: The JavaScript files (under the MIT license) have
-        some old translations are in the public domain.
+        been removed from the Doxygen-generated HTML version of the
+        liblzma API documentation. Doxygen itself is under the GNU GPL
+        but the remaining files generated by Doxygen are not affected
+        by the licenses used in Doxygen because Doxygen licensing has
+        the following exception:
 
-      - Test files and test code in the 'tests' directory, and
+            "Documents produced by doxygen are derivative works
-        debugging utilities in the 'debug' directory are under
+            derived from the input used in their production;
-        the BSD Zero Clause License (0BSD).
+            they are not affected by this license."
 
-      - The GNU Autotools based build system contains files that are
+      - The XZ logo included in the Doxygen documentation is under
-        under GNU GPLv2+, GNU GPLv3+, and a few permissive licenses.
+        the Creative Commons BY-SA 4.0 license.
-        These files don't affect the licensing of the binaries being
-        built.
 
-      - The 'extra' directory contains files that are under various
+      - Translated messages are in the public domain.
-        free software licenses. These aren't built or installed as
-        part of XZ Utils.
 
-    The following command may be helpful in finding per-file license
+      - The build system contains public domain files, and files that
-    information. It works on xz.git and on a clean file tree extracted
+        are under GNU GPLv2+ or GNU GPLv3+. None of these files end up
-    from a release tarball.
+        in the binaries being built.
 
-        sh build-aux/license-check.sh -v
+      - Test files and test code in the tests directory, and debugging
+        utilities in the debug directory are in the public domain.
 
-    For the files under the BSD Zero Clause License (0BSD), if
+      - The extra directory may contain public domain files, and files
-    a copyright notice is needed, the following is sufficient:
+        that are under various free software licenses.
 
-        Copyright (C) The XZ Utils authors and contributors
+    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.
 
-    If you copy significant amounts of 0BSD-licensed code from XZ Utils
+    As usual, this software is provided "as is", without any warranty.
+
+    If you copy significant amounts of public domain code from XZ Utils
     into your project, acknowledging this somewhere in your software is
     polite (especially if it is proprietary, non-free software), but
-    it is not legally required by the license terms. Here is an example
+    naturally it is not legally required. Here is an example of a good
-    of a good notice to put into "about box" or into documentation:
+    notice to put into "about box" or into documentation:
 
-        This software includes code from XZ Utils <https://tukaani.org/xz/>.
+        This software includes code from XZ Utils
+        <https://xz.tukaani.org/xz-utils/>.
 
     The following license texts are included in the following files:
-      - COPYING.0BSD: BSD Zero Clause License
       - COPYING.LGPLv2.1: GNU Lesser General Public License version 2.1
       - COPYING.GPLv2: GNU General Public License version 2
       - COPYING.GPLv3: GNU General Public License version 3
+      - COPYING.CC-BY-SA-4.0: Creative Commons Attribution-ShareAlike 4.0
+                              International Public License
 
-    If you have questions, don't hesitate to ask for more information.
+    Note that the toolchain (compiler, linker etc.) may add some code
-    The contact information is in the README file.
+    pieces that are copyrighted. Thus, it is possible that e.g. liblzma
+    binary wouldn't actually be in the public domain in its entirety
+    even though it contains no copyrighted code from the XZ Utils source
+    package.
+
+    If you have questions, don't hesitate to ask the author(s) for more
+    information.
 

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

@@ -0,0 +1,427 @@
+Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
+and certain other rights specified in the public license below. The
+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+     Considerations for licensors: Our public licenses are
+     intended for use by those authorized to give the public
+     permission to use material in ways otherwise restricted by
+     copyright and certain other rights. Our licenses are
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+Creative Commons may be contacted at creativecommons.org.

COPYING.GPLv2

@@ -2,7 +2,7 @@
                        Version 2, June 1991
 
  Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- <https://fsf.org/>
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -304,7 +304,8 @@ the "copyright" line and a pointer to where the full notice is found.
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License along
-    with this program; if not, see <https://www.gnu.org/licenses/>.
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 Also add information on how to contact you by electronic and paper mail.
 
@@ -328,8 +329,8 @@ necessary.  Here is a sample; alter the names:
   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
   `Gnomovision' (which makes passes at compilers) written by James Hacker.
 
-  <signature of Moe Ghoul>, 1 April 1989
+  <signature of Ty Coon>, 1 April 1989
-  Moe Ghoul, President of Vice
+  Ty Coon, President of Vice
 
 This General Public License does not permit incorporating your program into
 proprietary programs.  If your program is a subroutine library, you may

COPYING.LGPLv2.1

@@ -2,7 +2,7 @@
                        Version 2.1, February 1999
 
  Copyright (C) 1991, 1999 Free Software Foundation, Inc.
- <https://fsf.org/>
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -484,7 +484,8 @@ convey the exclusion of warranty; and each file should have at least the
     Lesser General Public License for more details.
 
     You should have received a copy of the GNU Lesser General Public
-    License along with this library; if not, see <https://www.gnu.org/licenses/>.
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 Also add information on how to contact you by electronic and paper mail.
 
@@ -495,7 +496,7 @@ necessary.  Here is a sample; alter the names:
   Yoyodyne, Inc., hereby disclaims all copyright interest in the
   library `Frob' (a library for tweaking knobs) written by James Random Hacker.
 
-  <signature of Moe Ghoul>, 1 April 1990
+  <signature of Ty Coon>, 1 April 1990
-  Moe Ghoul, President of Vice
+  Ty Coon, President of Vice
 
 That's all there is to it!

INSTALL

@@ -16,7 +16,7 @@ XZ Utils Installation
             1.2.8. DOS
             1.2.9. z/OS
        1.3. Adding support for new platforms
-    2. configure and CMake options
+    2. configure options
        2.1. Static vs. dynamic linking of liblzma
        2.2. Optimizing xzdec and lzmadec
     3. xzgrep and other scripts
@@ -76,11 +76,6 @@ XZ Utils Installation
     you use CC=xlc instead, you must disable threading support
     with --disable-threads (usually not recommended).
 
-    If building a 32-bit executable, the address space available to xz
-    might be limited to 256 MiB by default. To increase the address
-    space to 2 GiB, pass LDFLAGS=-Wl,-bmaxdata:0x80000000 as an argument
-    to configure.
-
 
 1.2.2. IRIX
 
@@ -95,15 +90,21 @@ XZ Utils Installation
 
 1.2.3. MINIX 3
 
-    Version 3.3.0 and later are supported.
+    The default install of MINIX 3 includes Amsterdam Compiler Kit (ACK),
+    which doesn't support C99. Install GCC to compile XZ Utils.
 
-    Multithreading isn't supported because MINIX 3 doesn't have
+    MINIX 3.1.8 and older have bugs in /usr/include/stdint.h, which has
-    pthreads. The option --disable-threads must be passed to configure
+    to be patched before XZ Utils can be compiled correctly. See
-    as this isn't autodetected.
+    <http://gforge.cs.vu.nl/gf/project/minix/tracker/?action=TrackerItemEdit&tracker_item_id=537>.
 
-    Note that disabling threads causes "make check" to show a few tests
+    MINIX 3.2.0 and later use a different libc and aren't affected by
-    as skipped ("SKIP"). It's only due to a few threading-dependent
+    the above bug.
-    subtests are skipped. See the matching tests/test_*.log files.
+
+    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
+    may want to pass gl_cv_cc_visibility=no to configure).
 
 
 1.2.4. OpenVMS
@@ -142,37 +143,43 @@ XZ Utils Installation
 
 1.2.7. Windows
 
-    The "windows" directory contains instructions for a few types
+    If it is enough to build liblzma (no command line tools):
-    of builds:
 
-      - INSTALL-MinGW-w64_with_CMake.txt
+      - There is CMake support. It should be good enough to build
-                Simple instructions how to build XZ Utils natively on
+        static liblzma or liblzma.dll with Visual Studio. The CMake
-                Windows using only CMake and a prebuilt toolchain
+        support may work with MinGW or MinGW-w64. Read the comment
-                (GCC + MinGW-w64 or Clang/LLVM + MinGW-w64).
+        in the beginning of CMakeLists.txt before running CMake!
 
-      - INSTALL-MinGW-w64_with_Autotools.txt
+      - There are Visual Studio project files under the "windows"
-                Native build under MSYS2 or cross-compilation from
+        directory. See windows/INSTALL-MSVC.txt. In the future the
-                GNU/Linux using a bash script that creates a .zip
+        project files will be removed when CMake support is good
-                and .7z archives of the binaries and documentation.
+        enough. Thus, please test the CMake version and help fix
-                The related file README-Windows.txt is for the
+        possible issues.
-                resulting binary package.
 
-      - INSTALL-MSVC.txt
+    To build also the command line tools:
-                Building with MSVC / Visual Studio and CMake.
 
-      - liblzma-crt-mixing.txt
+      - MinGW-w64 + MSYS (32-bit and 64-bit x86): This is used
-                Documentation what to take into account as a programmer
+        for building the official binary packages for Windows.
-                if liblzma.dll and the application don't use the same
+        There is windows/build.bash to ease packaging XZ Utils with
-                CRT (MSVCRT or UCRT).
+        MinGW(-w64) + MSYS into a redistributable .zip or .7z file.
+        See windows/INSTALL-MinGW.txt for more information.
 
-    Other choices:
+      - MinGW + MSYS (32-bit x86): I haven't recently tested this.
 
-      - Cygwin: https://cygwin.com/
+      - Cygwin 1.7.35 and later: NOTE that using XZ Utils >= 5.2.0
-        Building on Cygwin can be done like on many POSIX operating
+        under Cygwin older than 1.7.35 can lead to DATA LOSS! If
-        systems. XZ Utils >= 5.2.0 isn't compatible with Cygwin older
+        you must use an old Cygwin version, stick to XZ Utils 5.0.x
-        than 1.7.35 (data loss!). 1.7.35 was released on 2015-03-04.
+        which is safe under older Cygwin versions. You can check
+        the Cygwin version with the command "cygcheck -V".
 
-      - MSYS2: https://www.msys2.org/
+    It may be possible to build liblzma with other toolchains too, but
+    that will probably require writing a separate makefile. Building
+    the command line tools with non-GNU toolchains will be harder than
+    building only liblzma.
+
+    Even if liblzma is built with MinGW(-w64), the resulting DLL can
+    be used by other compilers and linkers, including MSVC. See
+    windows/README-Windows.txt for details.
 
 
 1.2.8. DOS
@@ -218,53 +225,19 @@ XZ Utils Installation
     in C89 or C++.
 
 
-2. configure and CMake options
+2. configure options
-------------------------------
+--------------------
 
     In most cases, the defaults are what you want. Many of the options
     below are useful only when building a size-optimized version of
     liblzma or command line tools.
 
-    configure options are those that begin with two dashes "--"
-    or "gl_".
-
-    CMake options begin with "XZ_", "TUKLIB_", or "CMAKE_". To use
-    them on the command line, prefix them with "-D", for example,
-    "cmake -DCMAKE_COMPILE_WARNING_AS_ERROR=ON".
-
-    CMAKE_BUILD_TYPE=TYPE
-                CMake only:
-
-                For release builds, CMAKE_BUILD_TYPE=Release is fine.
-                On targets where CMake defaults to -O3, the default
-                value is overridden to -O2.
-
-                Empty value (CMAKE_BUILD_TYPE=) is fine if using custom
-                optimization options. *In this package* the empty build
-                type also disables debugging code just like "Release"
-                does. To enable debugging code with empty build type,
-                use -UNDEBUG in the CFLAGS environment variable or in
-                the CMAKE_C_FLAGS CMake variable to override -DNDEBUG.
-
-                Non-standard build types like "None" do NOT disable
-                debugging code! Such non-standard build types should
-                be avoided for production builds!
-
     --enable-encoders=LIST
     --disable-encoders
-    XZ_ENCODERS=LIST
+                Specify a comma-separated LIST of filter encoders to
-                Specify a LIST of filter encoders to build. In the
+                build. See "./configure --help" for exact list of
-                configure option the list is comma separated.
+                available filter encoders. The default is to build all
-                CMake lists are semicolon separated.
+                supported encoders.
-
-                To see the exact list of available filter encoders:
-
-                  - Autotools: ./configure --help
-
-                  - CMake: Configure the tree normally first, then use
-                    "cmake -LH ." to list the cache variables.
-
-                The default is to build all supported encoders.
 
                 If LIST is empty or --disable-encoders is used, no filter
                 encoders will be built and also the code shared between
@@ -276,12 +249,10 @@ XZ Utils Installation
 
     --enable-decoders=LIST
     --disable-decoders
-    XZ_DECODERS=LIST
                 This is like --enable-encoders but for decoders. The
                 default is to build all supported decoders.
 
     --enable-match-finders=LIST
-    XZ_MATCH_FINDERS=LIST
                 liblzma includes two categories of match finders:
                 hash chains and binary trees. Hash chains (hc3 and hc4)
                 are quite fast but they don't provide the best compression
@@ -298,11 +269,9 @@ XZ Utils Installation
                 or LZMA2 filter encoders are being built.
 
     --enable-checks=LIST
-    XZ_CHECKS=LIST
                 liblzma support multiple integrity checks. CRC32 is
-                mandatory, and cannot be omitted. Supported check
+                mandatory, and cannot be omitted. See "./configure --help"
-                types are "crc32", "crc64", and "sha256". By default
+                for exact list of available integrity check types.
-                all supported check types are enabled.
 
                 liblzma and the command line tools can decompress files
                 which use unsupported integrity check type, but naturally
@@ -313,7 +282,6 @@ XZ Utils Installation
                 it is known to not cause problems.
 
     --enable-external-sha256
-    XZ_EXTERNAL_SHA256=ON
                 Try to use SHA-256 code from the operating system libc
                 or similar base system libraries. This doesn't try to
                 use OpenSSL or libgcrypt or such libraries.
@@ -350,8 +318,6 @@ XZ Utils Installation
                         time xz --test foo.xz
 
     --disable-microlzma
-    XZ_MICROLZMA_ENCODER=OFF
-    XZ_MICROLZMA_DECODER=OFF
                 Don't build MicroLZMA encoder and decoder. This omits
                 lzma_microlzma_encoder() and lzma_microlzma_decoder()
                 API functions from liblzma. These functions are needed
@@ -359,7 +325,6 @@ XZ Utils Installation
                 erofs-utils but they may be used by others too.
 
     --disable-lzip-decoder
-    XZ_LZIP_DECODER=OFF
                 Disable decompression support for .lz (lzip) files.
                 This omits the API function lzma_lzip_decoder() from
                 liblzma and .lz support from the xz tool.
@@ -368,10 +333,6 @@ XZ Utils Installation
     --disable-xzdec
     --disable-lzmadec
     --disable-lzmainfo
-    XZ_TOOL_XZ=OFF
-    XZ_TOOL_XZDEC=OFF
-    XZ_TOOL_LZMADEC=OFF
-    XZ_TOOL_LZMAINFO=OFF
                 Don't build and install the command line tool mentioned
                 in the option name.
 
@@ -381,63 +342,37 @@ XZ Utils Installation
                 a dangling man page symlink lzmadec.1 -> xzdec.1 is
                 created.
 
-    XZ_TOOL_SYMLINKS=OFF
-                Don't create the unxz and xzcat symlinks. (There is
-                no "configure" option to disable these symlinks.)
-
     --disable-lzma-links
-    XZ_TOOL_SYMLINKS_LZMA=OFF
                 Don't create symlinks for LZMA Utils compatibility.
                 This includes lzma, unlzma, and lzcat. If scripts are
                 installed, also lzdiff, lzcmp, lzgrep, lzegrep, lzfgrep,
                 lzmore, and lzless will be omitted if this option is used.
 
     --disable-scripts
-    XZ_TOOL_SCRIPTS=OFF
                 Don't install the scripts xzdiff, xzgrep, xzmore, xzless,
                 and their symlinks.
 
     --disable-doc
-    XZ_DOC=OFF
                 Don't install the documentation files to $docdir
                 (often /usr/doc/xz or /usr/local/doc/xz). Man pages
                 will still be installed. The $docdir can be changed
                 with --docdir=DIR.
 
-    --enable-doxygen
-    XZ_DOXYGEN=ON
-                Enable generation of the HTML version of the liblzma API
-                documentation using Doxygen. The resulting files are
-                installed to $docdir/api. This option assumes that
-                the 'doxygen' tool is available.
-
-                NOTE: --disable-doc or XZ_DOC=OFF don't affect this.
-
     --disable-assembler
-    XZ_ASM_I386=OFF
+                liblzma includes some assembler optimizations. Currently
-                This disables CRC32 and CRC64 assembly code on
+                there is only assembler code for CRC32 and CRC64 for
-                32-bit x86. This option currently does nothing
+                32-bit x86.
-                on other architectures (not even on x86-64).
 
-                The 32-bit x86 assembly is position-independent code
+                All the assembler code in liblzma is position-independent
-                which is suitable for use in shared libraries and
+                code, which is suitable for use in shared libraries and
-                position-independent executables. It uses only i386
+                position-independent executables. So far only i386
-                instructions but the code is optimized for i686 class
+                instructions are used, but the code is optimized for i686
-                CPUs. If you are compiling liblzma exclusively for
+                class CPUs. If you are compiling liblzma exclusively for
                 pre-i686 systems, you may want to disable the assembler
                 code.
 
-                The assembly code is compatible with only certain OSes
-                and toolchains (it's not compatible with MSVC).
-
-                Since XZ Utils 5.7.1alpha, the 32-bit x86 assembly code
-                co-exists with the modern CLMUL code: CLMUL is used if
-                support for it is detected at runtime. On old processors
-                the assembly code is used.
-
     --disable-clmul-crc
-    XZ_CLMUL_CRC=OFF
+                Disable the use carryless multiplication for 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
@@ -448,27 +383,7 @@ XZ Utils Installation
                 required extensions (-msse4.1 -mpclmul) then runtime
                 detection isn't used and the generic code is omitted.
 
-    --disable-arm64-crc32
-    XZ_ARM64_CRC32=OFF
-                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.
-
-    --disable-loongarch-crc32
-    XZ_LOONGARCH_CRC32=OFF
-                Disable the use of the 64-bit LoongArch CRC32
-                instruction extension even if compiler support for
-                it is detected. There is no runtime detection because
-                all 64-bit LoongArch processors should support
-                the CRC32 instructions.
-
     --enable-unaligned-access
-    TUKLIB_FAST_UNALIGNED_ACCESS=ON
                 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,
@@ -516,7 +431,6 @@ XZ Utils Installation
                         how unaligned access is done in the C code.
 
     --enable-unsafe-type-punning
-    TUKLIB_USE_UNSAFE_TYPE_PUNNING=ON
                 This enables use of code like
 
                     uint8_t *buf8 = ...;
@@ -533,7 +447,6 @@ XZ Utils Installation
                 GCC 3 and early 4.x on x86, GCC < 6 on ARMv6 and ARMv7).
 
     --enable-small
-    XZ_SMALL=ON
                 Reduce the size of liblzma by selecting smaller but
                 semantically equivalent version of some functions, and
                 omit precomputed lookup tables. This option tends to
@@ -550,7 +463,6 @@ XZ Utils Installation
                 flag(s) to CFLAGS manually.
 
     --enable-assume-ram=SIZE
-    XZ_ASSUME_RAM=SIZE
                 On the most common operating systems, XZ Utils is able to
                 detect the amount of physical memory on the system. This
                 information is used by the options --memlimit-compress,
@@ -567,7 +479,6 @@ XZ Utils Installation
                 src/common/tuklib_physmem.c for details.
 
     --enable-threads=METHOD
-    XZ_THREADS=METHOD
                 Threading support is enabled by default so normally there
                 is no need to specify this option.
 
@@ -603,8 +514,15 @@ XZ Utils Installation
                                 calls any liblzma functions from more than
                                 one thread, something bad may happen.
 
+    --enable-ifunc
+                Use __attribute__((__ifunc__())) in liblzma. This is
+                enabled by default on GNU/Linux and FreeBSD.
+
+                The ifunc attribute is incompatible with
+                -fsanitize=address. --disable-ifunc must be used
+                if any -fsanitize= option is specified in CFLAGS.
+
     --enable-sandbox=METHOD
-    XZ_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
@@ -639,71 +557,23 @@ XZ Utils Installation
                                 sandboxing. If no Landlock support
                                 is found, configure will give an error.
 
-    --enable-symbol-versions[=VARIANT]
+    --enable-symbol-versions
-    XZ_SYMBOL_VERSIONING=VARIANT
+                Use symbol versioning for liblzma. This is enabled by
-                Use symbol versioning for liblzma shared library.
+                default on GNU/Linux, other GNU-based systems, and
-                This is enabled by default on GNU/Linux (glibc only),
+                FreeBSD.
-                other GNU-based systems, and FreeBSD.
-
-                Symbol versioning is never used for static liblzma. This
-                option is ignored when not building a shared library.
-
-                Supported VARIANTs:
-
-                        no      Disable symbol versioning. This is the
-                                same as using --disable-symbol-versions.
-
-                        auto    Autodetect between "no", "linux",
-                                and "generic".
-
-                        yes     Autodetect between "linux" and
-                                "generic". This forces symbol
-                                versioning to be used when
-                                building a shared library.
-
-                        generic Generic version is the default for
-                                FreeBSD and GNU/Linux on MicroBlaze.
-
-                                This is also used on GNU/Linux when
-                                building with NVIDIA HPC Compiler
-                                because the compiler doesn't support
-                                the features required for the "linux"
-                                variant below.
-
-                        linux   Special version for GNU/Linux (glibc
-                                only). This adds a few extra symbol
-                                versions for compatibility with binaries
-                                that have been linked against a liblzma
-                                version that has been patched with
-                                "xz-5.2.2-compat-libs.patch" from
-                                RHEL/CentOS 7. That patch was used
-                                by some build tools outside of
-                                RHEL/CentOS 7 too.
 
     --enable-debug
                 This enables the assert() macro and possibly some other
                 run-time consistency checks. It makes the code slower, so
                 you normally don't want to have this enabled.
 
-                In CMake, the build type (CMAKE_BUILD_TYPE) controls if
-                -DNDEBUG is passed to the compiler. *In this package*,
-                an empty build type disables debugging code too.
-                Non-standard build types like "None" do NOT disable
-                debugging code!
-
-                To enable debugging code with empty build type in CMake,
-                use -UNDEBUG in the CFLAGS environment variable or in
-                the CMAKE_C_FLAGS CMake variable to override -DNDEBUG.
-
     --enable-werror
-    CMAKE_COMPILE_WARNING_AS_ERROR=ON (CMake >= 3.24)
                 If building with GCC, make all compiler warnings an error,
                 that abort the compilation. This may help catching bugs,
                 and should work on most systems. This has no effect on the
                 resulting binaries.
 
     --enable-path-for-scripts=PREFIX
-    (CMake determines this from the path of XZ_POSIX_SHELL)
                 If PREFIX isn't empty, PATH=PREFIX:$PATH will be set in
                 the beginning of the scripts (xzgrep and others).
                 The default is empty except on Solaris the default is
@@ -720,36 +590,6 @@ XZ Utils Installation
                 the PATH for the scripts. It is described in section 3.2
                 and is supported in this xz version too.
 
-    gl_cv_posix_shell=/path/to/bin/sh
-    XZ_POSIX_SHELL=/path/to/bin/sh
-                POSIX shell to use for xzgrep and other scripts.
-
-                  - configure should autodetect this well enough.
-                    Typically it's /bin/sh but in some cases, like
-                    Solaris, something else is used.
-
-                  - CMake build uses /bin/sh except on Solaris the
-                    default is /usr/xpg4/bin/sh.
-
-    CMAKE_DLL_NAME_WITH_SOVERSION=ON
-                CMake on native Windows (not Cygwin) only:
-
-                This changes the filename liblzma.dll to liblzma-5.dll.
-
-                The unversioned filename liblzma.dll has been used
-                since XZ Utils 5.0.0 when creating binary packages
-                using the included windows/build.bash. The same
-                unversioned filename is the default with CMake.
-                However, there are popular builds that, very
-                understandably and reasonably, use the versioned
-                filename produced by GNU Libtool.
-
-                This option should usually be left to its default value
-                (OFF). It can be set to ON if the liblzma DLL filename
-                must be compatible with the versioned filename
-                produced by GNU Libtool. For example, binaries
-                distributed in MSYS2 use a versioned DLL filename.
-
 
 2.1. Static vs. dynamic linking of liblzma
 
@@ -918,7 +758,7 @@ XZ Utils Installation
 
     The configure script determines if assembler code can be used by
     looking at the configure triplet; there is currently no check if
-    the assembler code can actually be built. The x86 assembler
+    the assembler code can actually actually be built. The x86 assembler
     code should work on x86 GNU/Linux, *BSDs, Solaris, Darwin, MinGW,
     Cygwin, and DJGPP. On other x86 systems, there may be problems and
     the assembler code may need to be disabled with the configure option.

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 \
@@ -34,34 +38,49 @@ dist_examples_DATA = \
 	doc/examples/02_decompress.c \
 	doc/examples/03_compress_custom.c \
 	doc/examples/04_compress_easy_mt.c \
-	doc/examples/11_file_info.c \
 	doc/examples/Makefile
+
+examplesolddir = $(docdir)/examples_old
+dist_examplesold_DATA = \
+	doc/examples_old/xz_pipe_comp.c \
+	doc/examples_old/xz_pipe_decomp.c
+
+# Install the Doxygen generated documentation if they were built.
+install-data-local:
+	if test -d "$(srcdir)/doc/api" ; then \
+		$(MKDIR_P) "$(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"
 endif
 
 EXTRA_DIST = \
-	cmake \
+	po4a \
+	extra \
+	doc/xz-logo.png \
 	dos \
 	doxygen \
-	extra \
-	po4a \
 	windows \
+	macosx \
+	cmake \
 	CMakeLists.txt \
+	autogen.sh \
+	COPYING.CC-BY-SA-4.0 \
 	COPYING.GPLv2 \
 	COPYING.GPLv3 \
 	COPYING.LGPLv2.1 \
 	INSTALL.generic \
 	PACKAGERS \
-	TODO \
-	autogen.sh \
-	build-aux/license-check.sh \
 	build-aux/manconv.sh \
-	build-aux/version.sh \
+	build-aux/version.sh
-	po/xz.pot-header
 
 ACLOCAL_AMFLAGS = -I m4
 
-# List of man pages to convert to plain text in the dist-hook target
+# List of man pages to convert to PDF and plain text in the dist-hook target.
-# or to PDF in the pdf-local target.
 manfiles = \
 	src/xz/xz.1 \
 	src/xzdec/xzdec.1 \
@@ -71,53 +90,47 @@ manfiles = \
 	src/scripts/xzless.1 \
 	src/scripts/xzmore.1
 
-# Create ChangeLog using "git log".
+# Create ChangeLog from output of "git log --date=iso --stat".
-# Convert the man pages to plain text (ASCII only) format.
+# Convert the man pages to PDF and plain text (ASCII only) formats.
 dist-hook:
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
-		( cd "$(srcdir)" && git log --pretty=medium --date=iso --stat \
+		( cd "$(srcdir)" && git log --date=iso --stat \
-			b69da6d4bb6bb11fc0cf066920791990d2b22a06^..HEAD ) \
+			6060f7dc76fd6c2a8a1f8e85d0e4d86bb78273e6^..HEAD ) \
 			> "$(distdir)/ChangeLog"; \
 	fi
-	if type groff > /dev/null 2>&1; then \
+	if type groff > /dev/null 2>&1 && type ps2pdf > /dev/null 2>&1; then \
 		dest="$(distdir)/doc/man" && \
-		$(MKDIR_P) "$$dest/txt" && \
+		$(MKDIR_P) "$$dest/pdf-a4" "$$dest/pdf-letter" "$$dest/txt" && \
 		for FILE in $(manfiles); do \
 			BASE=`basename $$FILE .1` && \
-			$(SHELL) "$(srcdir)/build-aux/manconv.sh" ascii \
+			sh "$(srcdir)/build-aux/manconv.sh" pdf a4 \
+				< "$(srcdir)/$$FILE" \
+				> "$$dest/pdf-a4/$$BASE-a4.pdf" && \
+			sh "$(srcdir)/build-aux/manconv.sh" pdf letter \
+				< "$(srcdir)/$$FILE" \
+				> "$$dest/pdf-letter/$$BASE-letter.pdf" && \
+			sh "$(srcdir)/build-aux/manconv.sh" ascii \
 				< "$(srcdir)/$$FILE" \
 				> "$$dest/txt/$$BASE.txt"; \
 		done; \
 	fi
-	cd "$(distdir)" && $(SHELL) "build-aux/license-check.sh"
+	if test -d "$(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 translations are up to date (dist-hook
+# This also ensures that the man page translations are up to date (dist-hook
 # would be too late for that).
 mydist:
-	$(SHELL) "$(srcdir)/src/liblzma/validate_map.sh"
+	sh "$(srcdir)/src/liblzma/validate_map.sh"
-	cd po && $(MAKE) xz.pot-update
+	cd "$(srcdir)/po4a" && sh update-po
-	cd "$(srcdir)/po4a" && $(SHELL) update-po
+	cd "$(srcdir)/doxygen" && sh update-doxygen
 	VERSION=$(VERSION); \
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
-		$(SHELL) "$(srcdir)/build-aux/license-check.sh" || exit 1; \
+		SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=4 | cut -b2-`; \
-		SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=8 | cut -b2-`; \
 		test -n "$$SNAPSHOT" && VERSION=$$SNAPSHOT; \
 	fi; \
-	TAR_OPTIONS='--owner=0 --group=0 --numeric-owner --mode=u+rw,go+r-w --sort=name' \
+	TAR_OPTIONS='--owner=0 --group=0 --numeric-owner --mode=u+rw,go+r-w' \
-		LC_COLLATE=C \
 		$(MAKE) VERSION="$$VERSION" dist-gzip
-
-# NOTE: This only creates the PDFs. The install rules are missing.
-pdf-local:
-	dest="doc/man" && \
-	$(MKDIR_P) "$$dest/pdf-a4" "$$dest/pdf-letter" && \
-	for FILE in $(manfiles); do \
-		BASE=`basename $$FILE .1` && \
-		$(SHELL) "$(srcdir)/build-aux/manconv.sh" pdf a4 \
-			< "$(srcdir)/$$FILE" \
-			> "$$dest/pdf-a4/$$BASE-a4.pdf" && \
-		$(SHELL) "$(srcdir)/build-aux/manconv.sh" pdf letter \
-			< "$(srcdir)/$$FILE" \
-			> "$$dest/pdf-letter/$$BASE-letter.pdf"; \
-	done

PACKAGERS

@@ -44,8 +44,8 @@ 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     Example programs and, if enabled at build time,
+        liblzma-doc     Doxygen-generated liblzma API docs (HTML),
-                        Doxygen-generated liblzma API docs (HTML)
+                        example programs
 
 
 2. Package description
@@ -124,15 +124,14 @@ Information to packagers of XZ Utils
 
     If the package manager supports a license field, you probably should
     put GPLv2+ there (GNU GPL v2 or later). The interesting parts of
-    XZ Utils are under the BSD Zero Clause License (0BSD), but some less
+    XZ Utils are in the public domain, but some less important files
-    important files ending up into the binary package are under GPLv2+.
+    ending up into the binary package are under GPLv2+. So it is simplest
-    So it is simplest to just say GPLv2+ if you cannot specify
+    to just say GPLv2+ if you cannot specify "public domain and GPLv2+".
-    "BSD0 and GPLv2+".
 
     If you split XZ Utils into multiple packages as described earlier
     in this file, liblzma and liblzma-dev packages will contain only
-    0BSD-licensed code from XZ Utils (compiler or linker may add some
+    public domain code (from XZ Utils at least; compiler or linker may
-    third-party code which may have other licenses).
+    add some third-party code, which may be copyrighted).
 
 
 4. configure options
@@ -170,14 +169,13 @@ 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 liblzma API documentation (HTML) is built and
+    The Doxygen-generated documentation (HTML) for the liblzma API
-    installed if the configure option --enable-doxygen is used (it's
+    headers is included in the source release and will be installed by
-    disabled by default). This requires that Doxygen is available. The
+    "make install" to $docdir/api. All JavaScript is removed to
-    API documentation is installed by "make install" to $docdir/api.
+    simplify license compliance and to reduce the install size. If the
-
+    liblzma API documentation is not desired, either run configure with
-        NOTE: The files generated by Doxygen include content from
+    --disable-doc or remove the doc/api directory before running
-        Doxygen itself. Check the license info before distributing
+    "make install".
-        the Doxygen-generated files.
 
 
 6. Extra files

README

@@ -10,7 +10,6 @@ XZ Utils
     2. Version numbering
     3. Reporting bugs
     4. Translations
-       4.1. Testing translations
     5. Other implementations of the .xz format
     6. Contact information
 
@@ -76,10 +75,11 @@ XZ Utils
     PACKAGERS             Information to packagers of XZ Utils
 
     COPYING               XZ Utils copyright and license information
-    COPYING.0BSD          BSD Zero Clause License
     COPYING.GPLv2         GNU General Public License version 2
     COPYING.GPLv3         GNU General Public License version 3
     COPYING.LGPLv2.1      GNU Lesser General Public License version 2.1
+    COPYING.CC-BY-SA-4.0  Creative Commons Attribution-ShareAlike 4.0
+                          International Public License
 
     AUTHORS               The main authors of XZ Utils
     THANKS                Incomplete list of people who have helped making
@@ -96,9 +96,9 @@ XZ Utils
 
     The command-line tools are documented as man pages. In source code
     releases (and possibly also in some binary packages), the man pages
-    are also provided in plain text (ASCII only) format in the directory
+    are also provided in plain text (ASCII only) and PDF formats in the
-    "doc/man" to make the man pages more accessible to those whose
+    directory "doc/man" to make the man pages more accessible to those
-    operating system doesn't provide an easy way to view man pages.
+    whose operating system doesn't provide an easy way to view man pages.
 
 
 1.3. Documentation for liblzma
@@ -204,47 +204,77 @@ XZ Utils
 
         https://translationproject.org/html/translators.html
 
-    Updates to translations won't be accepted by methods that bypass
+    Below are notes and testing instructions specific to xz
-    the Translation Project because there is a risk of duplicate work:
+    translations.
-    translation updates made in the xz repository aren't seen by the
-    translators in the Translation Project. If you have found bugs in
-    a translation, please report them to the Language-Team address
-    which can be found near the beginning of the PO file.
 
-    If you find language problems in the original English strings,
+    Testing can be done by installing xz into a temporary directory:
-    feel free to suggest improvements. Ask if something is unclear.
-
-
-4.1. Testing translations
-
-    Testing can be done by installing xz into a temporary directory.
-
-    If building from Git repository (not tarball), generate the
-    Autotools files:
-
-        ./autogen.sh
-
-    Create a subdirectory for the build files. The tmp-build directory
-    can be deleted after testing.
-
-        mkdir tmp-build
-        cd tmp-build
-        ../configure --disable-shared --enable-debug --prefix=$PWD/inst
-
-    Edit the .po file in the po directory. Then build and install to
-    the "tmp-build/inst" directory, and use translations.bash to see
-    how some of the messages look. Repeat these  steps if needed:
 
+        ./configure --disable-shared --prefix=/tmp/xz-test
+        # <Edit the .po file in the po directory.>
         make -C po update-po
-        make -j"$(nproc)" install
+        make install
-        bash ../debug/translation.bash | less
+        bash debug/translation.bash | less
-        bash ../debug/translation.bash | less -S  # For --list outputs
+        bash debug/translation.bash | less -S  # For --list outputs
 
-    To test other languages, set the LANGUAGE environment variable
+    Repeat the above as needed (no need to re-run configure though).
-    before running translations.bash. The value should match the PO file
-    name without the .po suffix. Example:
 
-        export LANGUAGE=fi
+    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!
 
 
 5. Other implementations of the .xz format
@@ -259,23 +289,21 @@ 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://tukaani.org/xz/embedded.html
+        https://xz.tukaani.org/xz-embedded/
 
     XZ for Java is a complete implementation written in pure Java.
 
-        https://tukaani.org/xz/java.html
+        https://xz.tukaani.org/xz-for-java/
 
 
 6. Contact information
 ----------------------
 
-    XZ Utils in general:
+    If you have questions, bug reports, patches etc. related to XZ Utils,
-      - Home page: https://tukaani.org/xz/
+    the project maintainers Lasse Collin and Jia Tan can be reached via
-      - Email to maintainer(s): xz@tukaani.org
+    <xz@tukaani.org>.
-      - IRC: #tukaani on Libera Chat
-      - GitHub: https://github.com/tukaani-project/xz
 
-    Lead maintainer:
+    You might find Lasse also from #tukaani on Libera Chat (IRC).
-      - Email: Lasse Collin <lasse.collin@tukaani.org>
+    The nick is Larhzu. The channel tends to be pretty quiet,
-      - IRC: Larhzu on Libera Chat
+    so just ask your question and someone might wake up.
 

THANKS

@@ -3,252 +3,176 @@ Thanks
 ======
 
 Some people have helped more, some less, but nevertheless everyone's help
-has been important. :-)
+has been important. :-) In alphabetical order:
-  - Adam Borowski
+  - Mark Adler
-  - Adam Walling
+  - Kian-Meng Ang
-  - Adrien Nader
-  - Agostino Sarubbo
-  - Alexander Bluhm
-  - Alexander M. Greenham
-  - Alexander Neumann
-  - Alexandre Sauvé
-  - Alexey Tourbin
-  - Anders F. Björklund
-  - Andraž 'ruskie' Levstik
-  - Andre Noll
-  - Andreas K. Hüttel
-  - Andreas Müller
-  - Andreas Schwab
-  - Andreas Zieringer
-  - Andrej Skenderija
-  - Andres Freund
-  - Andrew Dudman
-  - Andrew Murray
-  - Antoine Cœur
-  - Anton Kochkov
-  - Antonio Diaz Diaz
-  - Arkadiusz Miskiewicz
-  - Asgeir Storesund Nilsen
-  - Aziz Chaudhry
-  - Bela Lubkin
-  - Ben Boeckel
-  - Benjamin Buch
-  - Benno Schulenberg
-  - Bernhard Reutner-Fischer
-  - Bert Wesarg
-  - Bhargava Shastry
-  - Bill Glessner
-  - Bjarni Ingi Gislason
-  - Boud Roukema
-  - Brad Smith
-  - Bruce Stark
-  - Cary Lewis
-  - Charles Wilson
-  - Chenxi Mao
-  - Chien Wong
-  - Chris Donawa
-  - Chris McCrohan
-  - Christian Hesse
-  - Christian Kujau
-  - Christian von Roques
-  - Christian Weisgerber
-  - Christoph Junghans
-  - Collin Funk
-  - Conley Moorhous
-  - Cristian Rodríguez
-  - Cristiano Ceglia
-  - Dan Shechter
-  - Dan Stromberg
-  - Dan Weiss
-  - Daniel Leonard
-  - Daniel Mealha Cabrita
-  - Daniel Packard
-  - Daniel Richard G.
-  - David Burklund
-  - Denis Excoffier
-  - Derwin McGeary
-  - Dexter Castor Döpping
-  - Diederik de Haas
-  - Diego Elio Pettenò
-  - Dimitri Papadopoulos Orfanos
-  - Dirk Müller
-  - Douglas Thor
-  - Ed Maste
-  - Elbert Pol
-  - Eli Schwartz
-  - Elijah Almeida Coimbra
-  - Émilie Labbé
-  - Emmanuel Blot
-  - Eric Lindblad
-  - Eric S. Raymond
-  - Étienne Mollier
-  - Evan Nemerson
-  - Fangrui Song
-  - Felix Collin
-  - Filip Palian
-  - Firas Khalil Khana
-  - François Etcheverry
-  - Frank Busse
-  - Frank Prochnow
-  - Fredrik Wikstrom
-  - Gabi Davar
-  - Gabriela Gutierrez
-  - Gilles Espinasse
-  - Gregory Margo
-  - Guillaume Outters
-  - Guiorgy Potskhishvili
   - H. Peter Anvin
-  - Hajin Jang
-  - Hans Jansen
-  - Harri K. Koskinen
-  - Hin-Tak Leung
-  - H.J. Lu
-  - Hongbo Ni
-  - Igor Pavlov
-  - İhsan Doğan
-  - Ilya Kurdyukov
-  - Iouri Kharon
-  - İsmail Dönmez
-  - Ivan A. Melnikov
-  - Jakub Bogusz
-  - James Buren
-  - James M Leddy
-  - Jan Kratochvil
-  - Jan Terje Hansen
-  - Jason Gorski
   - Jeff Bastian
-  - Jeffrey Walton
+  - Nelson H. F. Beebe
-  - Jeroen Roovers
-  - Jim Meyering
-  - Jim Wilcoxson
-  - Joachim Henke
-  - John Paul Adrian Glaubitz
-  - Jonathan Nieder
-  - Jonathan Stott
-  - Joona Kannisto
-  - Jouk Jansen
-  - Juan Manuel Guerrero
-  - Jukka Salmi
-  - Julien Marrec
-  - Jun I Jin
-  - Kai Pastor
   - Karl Beldan
   - Karl Berry
-  - Keith Patton
+  - Anders F. Björklund
-  - Kelvin Lee
+  - Emmanuel Blot
-  - Kevin R. Bulgrien
-  - Kian-Meng Ang
-  - Kim Jinyeong
-  - Kirill A. Korinsky
-  - Kiyoshi Kanazawa
-  - Lars Wirzenius
-  - Li Chenggang
-  - Lizandro Heredia
-  - Loganaden Velvindron
-  - Lorenzo De Liso
-  - Lukas Braune
-  - Maarten Bosmans
-  - Maksym Vatsyk
-  - Marcin Kowalczyk
-  - Marcus Comstedt
-  - Marcus Tillmanns
-  - Marek Černocký
-  - Mark Adler
-  - Mark Wielaard
-  - Markus Duft
-  - Markus Rickert
-  - Martin Blumenstingl
-  - Martin Matuška
-  - Martin Storsjö
-  - Martin Väth
-  - Mathieu Vachon
-  - Matthew Good
-  - Matthieu Rakotojaona
   - Melanie Blower
+  - Alexander Bluhm
+  - Martin Blumenstingl
+  - Ben Boeckel
+  - Jakub Bogusz
+  - Adam Borowski
+  - Maarten Bosmans
+  - Lukas Braune
+  - Benjamin Buch
+  - Trent W. Buck
+  - Kevin R. Bulgrien
+  - James Buren
+  - David Burklund
+  - Frank Busse
+  - Daniel Mealha Cabrita
+  - Milo Casagrande
+  - Marek Černocký
+  - Tomer Chachamu
+  - Vitaly Chikunov
+  - Antoine Cœur
+  - Gabi Davar
+  - İhsan Doğan
+  - Chris Donawa
+  - Andrew Dudman
+  - Markus Duft
+  - İsmail Dönmez
+  - Paul Eggert
+  - Robert Elz
+  - Gilles Espinasse
+  - Denis Excoffier
+  - Vincent Fazio
   - Michael Felt
   - Michael Fox
-  - Michał Górny
   - Mike Frysinger
-  - Mikko Pouru
+  - Daniel Richard G.
-  - Milo Casagrande
-  - Mohammed Adnène Trojette
-  - Nathan Moinvaziri
-  - Nelson H. F. Beebe
-  - Nicholas Jackson
-  - Ole André Vadla Ravnås
-  - Orange Tsai
-  - Orgad Shaneh
-  - Patrick J. Volkerding
-  - Paul Eggert
-  - Paul Townsend
-  - Pavel Raiskup
-  - Per Øyvind Karlsen
-  - Peter Ivanov
-  - Peter Lawler
-  - Peter O'Gorman
-  - Peter Pallinger
-  - Peter Seiderer
-  - Pierre-Yves Martin
-  - Pilorz Wojciech
-  - Pippijn van Steenhoven
-  - Rafał Mużyło
-  - Rainer Müller
-  - Ralf Wildenhues
-  - Rich Prohaska
-  - Richard Koch
-  - Richard W.M. Jones
-  - Robert Elz
-  - Robert Readman
-  - Roel Bouckaert
-  - Ron Desmond
-  - Ruarí Ødegaard
-  - Rui Paulo
-  - Ryan Colyer
-  - Ryan Young
-  - Sam James
-  - Scott McAllister
-  - Sean Fenian
-  - Sebastian Andrzej Siewior
-  - Sergey Kosukhin
-  - Simon Josefsson
-  - Siteshwar Vashisht
-  - Steffen Nurpmeso
-  - Stephan Kulow
-  - Stephen Sachs
-  - Stuart Shelton
-  - Taiki Tsunekawa
-  - Thomas Klausner
-  - Tobias Lahrmann Hansen
-  - Tobias Stoeckmann
   - Tomasz Gajc
-  - Tomer Chachamu
+  - Bjarni Ingi Gislason
-  - Torsten Rupp
+  - John Paul Adrian Glaubitz
-  - Trần Ngọc Quân
+  - Bill Glessner
-  - Trent W. Buck
+  - Matthew Good
-  - Victoria Alexia
+  - Michał Górny
-  - Vijay Sarvepalli
+  - Jason Gorski
-  - Ville Koskinen
+  - Juan Manuel Guerrero
-  - Ville Skyttä
+  - Gabriela Gutierrez
-  - Vincent Cruz
+  - Diederik de Haas
-  - Vincent Fazio
+  - Joachim Henke
-  - Vincent Lefevre
+  - Christian Hesse
-  - Vincent Torri
-  - Vincent Wixsom
   - Vincenzo Innocente
-  - Vitaly Chikunov
+  - 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
+  - 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
+  - Cary Lewis
   - Wim Lewis
-  - Xi Ruoyao
   - Xin Li
-  - Yifeng Li
+  - Eric Lindblad
-  - 榆柳松 (ZhengSen Wang)
+  - Lorenzo De Liso
-
+  - H.J. Lu
-Companies:
+  - Bela Lubkin
-  - Google
+  - Chenxi Mao
-  - Sandfly Security
+  - Gregory Margo
-
+  - Julien Marrec
-Other credits:
+  - Ed Maste
-  - cleemy desu wayo working with Trend Micro Zero Day Initiative
+  - Martin Matuška
-  - Orange Tsai and splitline from DEVCORE Research Team
+  - Ivan A. Melnikov
+  - Jim Meyering
+  - Arkadiusz Miskiewicz
+  - Nathan Moinvaziri
+  - Étienne Mollier
+  - Conley Moorhous
+  - Rafał Mużyło
+  - Adrien Nader
+  - Evan Nemerson
+  - Hongbo Ni
+  - Jonathan Nieder
+  - Andre Noll
+  - Peter O'Gorman
+  - Dimitri Papadopoulos Orfanos
+  - Daniel Packard
+  - Filip Palian
+  - Peter Pallinger
+  - Rui Paulo
+  - Igor Pavlov
+  - Diego Elio Pettenò
+  - Elbert Pol
+  - Mikko Pouru
+  - Rich Prohaska
+  - Trần Ngọc Quân
+  - Pavel Raiskup
+  - Ole André Vadla Ravnås
+  - Eric S. Raymond
+  - Robert Readman
+  - Bernhard Reutner-Fischer
+  - Markus Rickert
+  - Cristian Rodríguez
+  - Christian von Roques
+  - Boud Roukema
+  - Torsten Rupp
+  - Stephen Sachs
+  - Jukka Salmi
+  - Agostino Sarubbo
+  - Alexandre Sauvé
+  - Benno Schulenberg
+  - Andreas Schwab
+  - Bhargava Shastry
+  - Dan Shechter
+  - Stuart Shelton
+  - Sebastian Andrzej Siewior
+  - Ville Skyttä
+  - Brad Smith
+  - Bruce Stark
+  - Pippijn van Steenhoven
+  - Martin Storsjö
+  - Jonathan Stott
+  - Dan Stromberg
+  - Jia Tan
+  - Vincent Torri
+  - Paul Townsend
+  - Mohammed Adnène Trojette
+  - Alexey Tourbin
+  - Taiki Tsunekawa
+  - Maksym Vatsyk
+  - Loganaden Velvindron
+  - Patrick J. Volkerding
+  - Martin Väth
+  - Adam Walling
+  - Jeffrey Walton
+  - Christian Weisgerber
+  - Dan Weiss
+  - Bert Wesarg
+  - Fredrik Wikstrom
+  - Jim Wilcoxson
+  - Ralf Wildenhues
+  - Charles Wilson
+  - Lars Wirzenius
+  - Pilorz Wojciech
+  - Ryan Young
+  - Andreas Zieringer
 
 Also thanks to all the people who have participated in the Tukaani project.
 

TODO

@@ -5,7 +5,12 @@ XZ Utils To-Do List
 Known bugs
 ----------
 
-    The test suite is incomplete.
+    The test suite is too incomplete.
+
+    If the memory usage limit is less than about 13 MiB, xz is unable to
+    automatically scale down the compression settings enough even though
+    it would be  possible by switching from BT2/BT3/BT4 match finder to
+    HC3/HC4.
 
     XZ Utils compress some files significantly worse than LZMA Utils.
     This is due to faster compression presets used by XZ Utils, and
@@ -14,6 +19,9 @@ Known bugs
     compress extremely well, so going from compression ratio of 0.003
     to 0.004 means big relative increase in the compressed file size.
 
+    xz doesn't quote unprintable characters when it displays file names
+    given on the command line.
+
     tuklib_exit() doesn't block signals => EINTR is possible.
 
     If liblzma has created threads and fork() gets called, liblzma
@@ -33,6 +41,9 @@ Missing features
     be mostly useful when using a preset dictionary in LZMA2, but
     it may have other uses too. Compare to deflateCopy() in zlib.
 
+    Support LZMA_FINISH in raw decoder to indicate end of LZMA1 and
+    other streams that don't have an end of payload marker.
+
     Adjust dictionary size when the input file size is known.
     Maybe do this only if an option is given.
 
@@ -56,9 +67,9 @@ Missing features
     Support LZMA_FULL_FLUSH for lzma_stream_decoder() to stop at
     Block and Stream boundaries.
 
-    Error codes from lzma_code() aren't very specific. A more detailed
+    lzma_strerror() to convert lzma_ret to human readable form?
-    error message (string) could be provided too. It could be returned
+    This is tricky, because the same error codes are used with
-    by a new function or use a currently-reserved member of lzma_stream.
+    slightly different meanings, and this cannot be fixed anymore.
 
     Make it possible to adjust LZMA2 options in the middle of a Block
     so that the encoding speed vs. compression ratio can be optimized
@@ -86,3 +97,9 @@ Documentation
 
     Document the LZMA1 and LZMA2 algorithms.
 
+
+Miscellaneous
+------------
+
+    Try to get the media type for .xz registered at IANA.
+

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
@@ -17,12 +19,14 @@ ${AUTOCONF:-autoconf}
 ${AUTOHEADER:-autoheader}
 ${AUTOMAKE:-automake} -acf --foreign
 
-# Generate the translated man pages if the "po4a" tool is available.
+# Generate the translated man pages and the doxygen documentation if the
+# "po4a" and "doxygen" tools are available.
 # This is *NOT* done by "autoreconf -fi" or when "make" is run.
-# Pass --no-po4a to this script to skip this step.
+# Pass --no-po4a or --no-doxygen to this script to skip these steps.
-# It can be useful when you know that po4a isn't available and
+# 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
@@ -30,6 +34,10 @@ do
 		"--no-po4a")
 			generate_po4a="n"
 			;;
+
+		"--no-doxygen")
+			generate_doxygen="n"
+			;;
 	esac
 done
 
@@ -39,4 +47,10 @@ if test "$generate_po4a" != "n"; then
 	cd ..
 fi
 
+if test "$generate_doxygen" != "n"; then
+	cd doxygen
+	sh update-doxygen
+	cd ..
+fi
+
 exit 0

build-aux/ci_build.sh

@@ -1,6 +1,5 @@
 #!/bin/bash
-# SPDX-License-Identifier: 0BSD
+#
-
 #############################################################################
 #
 # Script meant to be used for Continuous Integration automation for POSIX
@@ -10,6 +9,9 @@
 #
 # Author: Jia Tan
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 set -e
@@ -18,7 +20,7 @@ USAGE="Usage: $0
   -a [autogen flags]
   -b [autotools|cmake]
   -c [crc32|crc64|sha256]
-  -d [encoders|decoders|bcj|delta|threads|shared|nls|small|clmul|sandbox]
+  -d [encoders|decoders|bcj|delta|threads|shared|nls|small|ifunc|clmul|sandbox]
   -f [CFLAGS]
   -l [destdir]
   -m [compiler]
@@ -41,23 +43,20 @@ THREADS="y"
 SHARED="y"
 NATIVE_LANG_SUPPORT="y"
 SMALL="n"
+IFUNC="y"
 CLMUL="y"
 SANDBOX="y"
-DOXYGEN="y"
 SRC_DIR="$ABS_DIR/../"
 DEST_DIR="$SRC_DIR/../xz_build"
 PHASE="all"
 ARTIFACTS_DIR_NAME="output"
 
-[[ -z ${CPU_COUNT} ]] && { CPU_COUNT=$(nproc 2>/dev/null || sysctl -n hw.activecpu); }
-[[ -z ${MAKEFLAGS} ]] && export MAKEFLAGS="-j${CPU_COUNT} -l${CPU_COUNT}"
-[[ -z ${CFLAGS} ]] && export CFLAGS="-O2"
 
 ###################
 # Parse arguments #
 ###################
 
-while getopts a:b:c:d:l:m:n:s:p:f:w:h opt; do
+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)
@@ -90,9 +89,9 @@ while getopts a:b:c:d:l:m:n:s:p:f:w:h opt; do
 		shared) SHARED="n";;
 		nls) NATIVE_LANG_SUPPORT="n";;
 		small) SMALL="y";;
+		ifunc) IFUNC="n";;
 		clmul) CLMUL="n";;
 		sandbox) SANDBOX="n";;
-		doxygen) DOXYGEN="n";;
 		*) echo "Invalid disable value: $disable_arg"; exit 1 ;;
 		esac
 	done
@@ -110,15 +109,9 @@ while getopts a:b:c:d:l:m:n:s:p:f:w:h opt; do
 	p) PHASE="$OPTARG"
 	;;
 	f)
-		CFLAGS+=" $OPTARG"
+		CFLAGS="$OPTARG"
 		export CFLAGS
 	;;
-	w) WRAPPER="$OPTARG"
-	;;
-	*)
-		echo "Unsupported option: $opt"
-		exit 1
-	;;
 	esac
 done
 
@@ -172,7 +165,15 @@ then
 	CHECK_TYPE_TEMP=""
 	for crc in $(echo "$CHECK_TYPE" | sed "s/,/ /g"); do
 			case "$crc" in
-			crc32 | crc64 | sha256) ;;
+			# Remove "crc32" from cmake build, if specified.
+			crc32)
+				if [ "$BUILD_SYSTEM" = "cmake" ]
+				then
+					continue
+				fi
+			;;
+			crc64) ;;
+			sha256) ;;
 			*) echo "Invalid check type: $crc"; exit 1 ;;
 			esac
 
@@ -212,18 +213,9 @@ then
 		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" "" "--disable-sandbox"
+		add_extra_option "$SANDBOX" "" "--enable-sandbox=no"
-		add_extra_option "$DOXYGEN" "--enable-doxygen" ""
-
-		# Workaround a bug in too old config.guess. Version with
-		# timestamp='2022-05-08' would be needed but the autotools-dev
-		# package has 2022-01-09 in Ubuntu 22.04LTS and 24.04LTS. The
-		# bug breaks i386 assembler usage autodetection.
-		if "$SRC_DIR/build-aux/config.guess" | grep -q x86_64-pc-linux-gnux32
-		then
-			EXTRA_OPTIONS="$EXTRA_OPTIONS --build=i686-pc-linux-gnu"
-		fi
 
 		# Run configure script
 		"$SRC_DIR"/configure --enable-werror --enable-checks="$CHECK_TYPE" $EXTRA_OPTIONS --config-cache
@@ -237,24 +229,26 @@ then
 		add_to_filter_list "$BCJ" ";x86;powerpc;ia64;arm;armthumb;arm64;sparc;riscv"
 		add_to_filter_list "$DELTA" ";delta"
 
-		add_extra_option "$THREADS" "-DXZ_THREADS=yes" "-DXZ_THREADS=no"
+		add_extra_option "$THREADS" "-DENABLE_THREADS=ON" "-DENABLE_THREADS=OFF"
 
 		# Disable MicroLZMA if encoders are not configured.
-		add_extra_option "$ENCODERS" "-DXZ_ENCODERS=$FILTER_LIST" "-DXZ_ENCODERS= -DXZ_MICROLZMA_ENCODER=OFF"
+		add_extra_option "$ENCODERS" "-DENCODERS=$FILTER_LIST" "-DENCODERS= -DMICROLZMA_ENCODER=OFF"
 
 		# Disable MicroLZMA and lzip decoders if decoders are not configured.
-		add_extra_option "$DECODERS" "-DXZ_DECODERS=$FILTER_LIST" "-DXZ_DECODERS= -DXZ_MICROLZMA_DECODER=OFF -DXZ_LZIP_DECODER=OFF"
+		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 "$NATIVE_LANG_SUPPORT" "" "-DXZ_NLS=OFF"
+		add_extra_option "$SMALL" "-DHAVE_SMALL=ON" ""
-		add_extra_option "$SMALL" "-DXZ_SMALL=ON" ""
+
-		add_extra_option "$DOXYGEN" "-DXZ_DOXYGEN=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" $EXTRA_OPTIONS -DXZ_CHECKS="$CHECK_TYPE" -G "Unix Makefiles"
+		cmake "$SRC_DIR/CMakeLists.txt" -B "$DEST_DIR" $EXTRA_OPTIONS -DADDITIONAL_CHECK_TYPES="$CHECK_TYPE" -G "Unix Makefiles"
 		cmake --build "$DEST_DIR"
 	;;
 	esac
@@ -271,7 +265,7 @@ then
 	autotools)
 		cd "$DEST_DIR"
 		# If the tests fail, copy the test logs into the artifacts folder
-		if make check VERBOSE=1 LOG_COMPILER="$WRAPPER"
+		if make check
 		then
 			:
 		else
@@ -282,7 +276,7 @@ then
 	;;
 	cmake)
 		cd "$DEST_DIR"
-		if ${WRAPPER} make CTEST_OUTPUT_ON_FAILURE=1 test
+		if make test
 		then
 			:
 		else

build-aux/license-check.sh

@@ -1,177 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: 0BSD
-
-###############################################################################
-#
-# Look for missing license info in xz.git
-#
-# The project doesn't conform to the FSFE REUSE specification for now.
-# Instead, this script helps in finding files that lack license info.
-# Pass -v as an argument to get license info from all files in xz.git or,
-# when .git isn't available, from files extracted from a release tarball
-# (in case of a release tarball, the tree must be clean of any extra files).
-#
-# NOTE: This relies on non-POSIX xargs -0. It's supported on GNU and *BSDs.
-#
-###############################################################################
-#
-# Author: Lasse Collin
-#
-###############################################################################
-
-# Print good files too if -v is passed as an argument.
-VERBOSE=false
-case $1 in
-	'')
-		;;
-	-v)
-		VERBOSE=true
-		;;
-	*)
-		echo "Usage: $0 [-v]"
-		exit 1
-		;;
-esac
-
-
-# Use the C locale so that sorting is always the same.
-LC_ALL=C
-export LC_ALL
-
-
-# String to match the SPDX license identifier tag.
-# Spell it here in a way that doesn't match regular grep patterns.
-SPDX_LI='SPDX''-License-''Identifier'':'
-
-# Pattern for files that don't contain SPDX tags but they are under
-# a free license that isn't 0BSD.
-PAT_UNTAGGED_MISC='^COPYING\.
-^INSTALL\.generic$'
-
-# Pattern for files that are 0BSD but don't contain SPDX tags.
-# (The two file format specification files are public domain but
-# they can be treated as 0BSD too.)
-PAT_UNTAGGED_0BSD='^(.*/)?\.gitattributes$
-^(.*/)?\.gitignore$
-^\.github/SECURITY\.md$
-^AUTHORS$
-^COPYING$
-^ChangeLog$
-^INSTALL$
-^NEWS$
-^PACKAGERS$
-^(.*/)?README$
-^THANKS$
-^TODO$
-^(.*/)?[^/]+\.txt$
-^doc/SHA256SUMS$
-^po/LINGUAS$
-^src/common/w32_application\.manifest$
-^tests/xzgrep_expected_output$
-^tests/files/[^/]+\.(lz|lzma|xz)$'
-
-# Pattern for files that must be ignored when Git isn't available. This is
-# useful when this script is run right after extracting a release tarball.
-PAT_TARBALL_IGNORE='^(m4/)?[^/]*\.m4$
-^(.*/)?Makefile\.in(\.in)?$
-^(po|po4a)/.*[^.]..$
-^ABOUT-NLS$
-^build-aux/(config\..*|ltmain\.sh|[^.]*)$
-^config\.h\.in$
-^configure$'
-
-
-# Go to the top source dir.
-cd "$(dirname "$0")/.." || exit 1
-
-# Get the list of files to check from git if possible.
-# Otherwise list the whole source tree. This script should pass
-# if it is run right after extracting a release tarball.
-if test -d .git && type git > /dev/null 2>&1; then
-	FILES=$(git ls-files) || exit 1
-	IS_TARBALL=false
-else
-	FILES=$(find . -type f) || exit 1
-	FILES=$(printf '%s\n' "$FILES" | sed 's,^\./,,')
-	IS_TARBALL=true
-fi
-
-# Sort to keep the order consistent.
-FILES=$(printf '%s\n' "$FILES" | sort)
-
-
-# Find the tagged files.
-TAGGED=$(printf '%s\n' "$FILES" \
-	| tr '\n' '\000' | xargs -0r grep -l "$SPDX_LI" --)
-
-# Find the tagged 0BSD files.
-TAGGED_0BSD=$(printf '%s\n' "$TAGGED" \
-	| tr '\n' '\000' | xargs -0r grep -l "$SPDX_LI 0BSD" --)
-
-# Find the tagged non-0BSD files, that is, remove the 0BSD-tagged files
-# from the list of tagged files.
-TAGGED_MISC=$(printf '%s\n%s\n' "$TAGGED" "$TAGGED_0BSD" | sort | uniq -u)
-
-
-# Remove the tagged files from the list.
-FILES=$(printf '%s\n%s\n' "$FILES" "$TAGGED" | sort | uniq -u)
-
-# Find the intentionally-untagged files.
-UNTAGGED_0BSD=$(printf '%s\n' "$FILES" | grep -E "$PAT_UNTAGGED_0BSD")
-UNTAGGED_MISC=$(printf '%s\n' "$FILES" | grep -E "$PAT_UNTAGGED_MISC")
-
-# Remove the intentionally-untagged files from the list.
-FILES=$(printf '%s\n' "$FILES" | grep -Ev \
-	-e "$PAT_UNTAGGED_0BSD" -e "$PAT_UNTAGGED_MISC")
-
-
-# FIXME: Allow untagged translations if they have a public domain notice.
-# These are old translations that haven't been updated after 2024-02-14.
-# Eventually these should go away.
-PD_PO=$(printf '%s\n' "$FILES" | grep '\.po$' | tr '\n' '\000' \
-	| xargs -0r grep -Fl '# This file is put in the public domain.' --)
-
-if test -n "$PD_PO"; then
-	# Remove the public domain .po files from the list.
-	FILES=$(printf '%s\n%s\n' "$FILES" "$PD_PO" | sort | uniq -u)
-fi
-
-
-# Remove generated files from the list which don't have SPDX tags but which
-# can be present in release tarballs. This step is skipped when the file list
-# is from "git ls-files".
-GENERATED=
-if $IS_TARBALL; then
-	GENERATED=$(printf '%s\n' "$FILES" | grep -E "$PAT_TARBALL_IGNORE")
-	FILES=$(printf '%s\n' "$FILES" | grep -Ev "$PAT_TARBALL_IGNORE")
-fi
-
-
-if $VERBOSE; then
-	printf '# Tagged 0BSD files:\n%s\n\n' "$TAGGED_0BSD"
-	printf '# Intentionally untagged 0BSD:\n%s\n\n' "$UNTAGGED_0BSD"
-
-	# FIXME: Remove when no longer needed.
-	if test -n "$PD_PO"; then
-		printf '# Old public domain translations:\n%s\n\n' "$PD_PO"
-	fi
-
-	printf '# Tagged non-0BSD files:\n%s\n\n' "$TAGGED_MISC"
-	printf '# Intentionally untagged miscellaneous: \n%s\n\n' \
-		"$UNTAGGED_MISC"
-
-	if test -n "$GENERATED"; then
-		printf '# Generated files whose license was NOT checked:\n%s\n\n' \
-			"$GENERATED"
-	fi
-fi
-
-
-# Look for files with an unknown license and set the exit status accordingly.
-STATUS=0
-if test -n "$FILES"; then
-	printf '# ERROR: Licensing is unclear:\n%s\n' "$FILES"
-	STATUS=1
-fi
-
-exit "$STATUS"

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
@@ -42,12 +44,12 @@ case $FORMAT in
 		groff -t -mandoc -Tutf8 -P-c | col -bx
 		;;
 	ps)
-		sed "$SED_PD" | groff -dpaper="$PAPER" -t -mandoc \
+		sed "$SED_PD" | groff -dpaper=$PAPER -t -mandoc \
-				-rC1 -rS"$FONT" -Tps -P-p"$PAPER"
+				-rC1 -rS$FONT -Tps -P-p$PAPER
 		;;
 	pdf)
-		sed "$SED_PD" | groff -dpaper="$PAPER" -t -mandoc \
+		sed "$SED_PD" | groff -dpaper=$PAPER -t -mandoc \
-				-rC1 -rS"$FONT" -Tps -P-p"$PAPER" | ps2pdf - -
+				-rC1 -rS$FONT -Tps -P-p$PAPER | ps2pdf - -
 		;;
 	*)
 		echo 'Invalid arguments' >&2

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/
@@ -17,5 +19,6 @@ sed -n 's/LZMA_VERSION_STABILITY_ALPHA/alpha/
 	s/LZMA_VERSION_STABILITY_STABLE//
 	s/^#define LZMA_VERSION_[MPS][AIT][AJNT][A-Z]* //p' \
 	src/liblzma/api/lzma/version.h \
-	| sed 'N; N; N; s/\n/./; s/\n/./; s/\n//g' \
+	| tr '\n' '|' \
-	| tr -d '\012\015\025'
+	| sed 's/|/./; s/|/./; s/|//g' \
+	| tr -d '\r\n'

cmake/remove-ordinals.cmake

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

cmake/tuklib_common.cmake

@@ -1,12 +1,11 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_common.cmake - common functions and macros for tuklib_*.cmake files
 #
 # Author: Lasse Collin
 #
-#############################################################################
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 
 function(tuklib_add_definitions TARGET_OR_ALL DEFINITIONS)
     # DEFINITIONS may be an empty string/list but it's fine here. There is
@@ -26,29 +25,23 @@ endfunction()
 
 # This is an over-simplified version of AC_USE_SYSTEM_EXTENSIONS in Autoconf
 # or gl_USE_SYSTEM_EXTENSIONS in gnulib.
-#
+macro(tuklib_use_system_extensions TARGET_OR_ALL)
-# NOTE: This is a macro because the changes to CMAKE_REQUIRED_DEFINITIONS
+    if(NOT WIN32)
-# must be visible in the calling scope.
+        # FIXME? The Solaris-specific __EXTENSIONS__ should be conditional
-macro(tuklib_use_system_extensions)
+        #        even on Solaris. See gnulib: git log m4/extensions.m4.
-    if(NOT MSVC)
+        # FIXME? gnulib and autoconf.git has lots of new stuff.
-        add_compile_definitions(
+        tuklib_add_definitions("${TARGET_OR_ALL}"
-            _GNU_SOURCE        # glibc, musl, mingw-w64
+            _GNU_SOURCE
-            _NETBSD_SOURCE     # NetBSD, MINIX 3
+            __EXTENSIONS__
-            _OPENBSD_SOURCE    # Also NetBSD!
+            _POSIX_PTHREAD_SEMANTICS
-            __EXTENSIONS__     # Solaris
+            _TANDEM_SOURCE
-            _POSIX_PTHREAD_SEMANTICS # Solaris
+            _ALL_SOURCE
-            _DARWIN_C_SOURCE   # macOS
-            _TANDEM_SOURCE     # HP NonStop
-            _ALL_SOURCE        # AIX, z/OS
         )
 
         list(APPEND CMAKE_REQUIRED_DEFINITIONS
             -D_GNU_SOURCE
-            -D_NETBSD_SOURCE
-            -D_OPENBSD_SOURCE
             -D__EXTENSIONS__
             -D_POSIX_PTHREAD_SEMANTICS
-            -D_DARWIN_C_SOURCE
             -D_TANDEM_SOURCE
             -D_ALL_SOURCE
         )

cmake/tuklib_cpucores.cmake

@@ -1,15 +1,13 @@
-# 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(CMakePushCheckState)
 include(CheckCSourceCompiles)
 include(CheckIncludeFile)
 
@@ -77,7 +75,6 @@ function(tuklib_cpucores_internal_check)
     #
     # We test sysctl() first and intentionally break the sysctl() test on QNX
     # so that sysctl() is never used on QNX.
-    cmake_push_check_state()
     check_include_file(sys/param.h HAVE_SYS_PARAM_H)
     if(HAVE_SYS_PARAM_H)
         list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_PARAM_H)
@@ -105,7 +102,6 @@ function(tuklib_cpucores_internal_check)
             }
         "
         TUKLIB_CPUCORES_SYSCTL)
-    cmake_pop_check_state()
     if(TUKLIB_CPUCORES_SYSCTL)
         if(HAVE_SYS_PARAM_H)
             set(TUKLIB_CPUCORES_DEFINITIONS

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)
@@ -14,69 +13,6 @@ include(CheckCSourceCompiles)
 include(CheckIncludeFile)
 include(CheckSymbolExists)
 
-# An internal helper for tuklib_integer that attempts to detect if
-# -mstrict-align or -mno-strict-align is in effect. This sets the
-# cache variable TUKLIB_INTEGER_STRICT_ALIGN to ON if OBJDUMP_REGEX
-# matches the objdump output of a check program. Otherwise it is set to OFF.
-function(tuklib_integer_internal_strict_align OBJDUMP_REGEX)
-    if(NOT DEFINED TUKLIB_INTEGER_STRICT_ALIGN)
-        # Build a static library because then the function won't be optimized
-        # away, and there won't be any unrelated startup code either.
-        set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
-
-        # CMake >= 3.25 wouldn't require us to create a temporary file,
-        # but the following method is compatible with 3.20.
-        file(WRITE "${CMAKE_BINARY_DIR}/tuklib_integer_strict_align.c" "
-                #include <string.h>
-                unsigned int check_strict_align(const void *p)
-                {
-                    unsigned int i;
-                    memcpy(&i, p, sizeof(i));
-                    return i;
-                }
-            ")
-
-        # Force -O2 because memcpy() won't be optimized out if optimizations
-        # are disabled.
-        try_compile(
-            TRY_COMPILE_RESULT
-            "${CMAKE_BINARY_DIR}"
-            "${CMAKE_BINARY_DIR}/tuklib_integer_strict_align.c"
-            COMPILE_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}"
-            CMAKE_FLAGS "-DCOMPILE_DEFINITIONS=${CMAKE_REQUIRED_FLAGS} -O2"
-            COPY_FILE "${CMAKE_BINARY_DIR}/tuklib_integer_strict_align.a"
-        )
-
-        if(NOT TRY_COMPILE_RESULT)
-            message(FATAL_ERROR
-                    "Compilation of the strict align check failed. "
-                    "Either the specified compiler flags are broken "
-                    "or ${CMAKE_CURRENT_FUNCTION_LIST_FILE} has a bug.")
-        endif()
-
-        # Use WORKING_DIRECTORY instead of passing the full path to objdump.
-        # This ensures that the pathname won't affect the objdump output,
-        # which could result in an unwanted regex match in the next step.
-        execute_process(
-            COMMAND "${CMAKE_OBJDUMP}" -d "tuklib_integer_strict_align.a"
-            WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
-            OUTPUT_VARIABLE OBJDUMP_OUTPUT
-            RESULT_VARIABLE OBJDUMP_RESULT
-        )
-
-        # FIXME? Should we remove the temporary files here?
-
-        # Look for instructions that load unsigned bytes. If none are found,
-        # assume that -mno-strict-align is in effect.
-        if(OBJDUMP_RESULT STREQUAL "0" AND
-                OBJDUMP_OUTPUT MATCHES "${OBJDUMP_REGEX}")
-            set(TUKLIB_INTEGER_STRICT_ALIGN ON CACHE INTERNAL "")
-        else()
-            set(TUKLIB_INTEGER_STRICT_ALIGN OFF CACHE INTERNAL "")
-        endif()
-    endif()
-endfunction()
-
 function(tuklib_integer TARGET_OR_ALL)
     # Check for endianness. Unlike the Autoconf's AC_C_BIGENDIAN, this doesn't
     # support Apple universal binaries. The CMake module will leave the
@@ -123,145 +59,61 @@ function(tuklib_integer TARGET_OR_ALL)
         endif()
     endif()
 
-    # Autodetect if unaligned memory access is fast when the cache variable
+    # Guess that unaligned access is fast on these archs:
-    # TUKLIB_FAST_UNALIGNED_ACCESS isn't set. The result is stored in
+    #   - 32/64-bit x86 / x86-64
-    # FAST_UNALIGNED_GUESS. Assume that unaligned access shouldn't be used.
+    #   - 32/64-bit big endian PowerPC
-    # Initialize the variable here so that it's never undefined in the
+    #   - 64-bit little endian PowerPC
-    # option() command after the if()...endif() block.
+    #   - Some 32-bit ARM
+    #   - Some 64-bit ARM64 (AArch64)
+    #   - Some 32/64-bit RISC-V
+    #
+    # CMake doesn't provide a standardized/normalized list of processor arch
+    # names. For example, x86-64 may be "x86_64" (Linux), "AMD64" (Windows),
+    # or even "EM64T" (64-bit WinXP).
     set(FAST_UNALIGNED_GUESS OFF)
-    if(NOT DEFINED TUKLIB_FAST_UNALIGNED_ACCESS)
+    string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" PROCESSOR)
-        message(CHECK_START "Check if unaligned memory access should be used")
 
-        # Guess that unaligned access is fast on these archs:
+    # There is no ^ in the first regex branch to allow "i" at the beginning
-        #   - 32/64-bit x86 / x86-64
+    # so it can match "i386" to "i786", and "x86_64".
-        #   - 32/64-bit big endian PowerPC
+    if(PROCESSOR MATCHES "[x34567]86|^x64|^amd64|^em64t")
-        #   - 64-bit little endian PowerPC
+        set(FAST_UNALIGNED_GUESS ON)
-        #   - 32/64-bit Loongarch (*)
-        #   - Some 32-bit ARM
-        #   - Some 64-bit ARM64 (AArch64)
-        #   - Some 32/64-bit RISC-V
-        #
-        # (*) See sections 7.4, 8.1, and 8.2:
-        #     https://github.com/loongson/la-softdev-convention/blob/v0.2/la-softdev-convention.adoc
-        #
-        #     That is, desktop and server processors likely support
-        #     unaligned access in hardware but embedded processors
-        #     might not. GCC defaults to -mno-strict-align and so
-        #     do majority of GNU/Linux distributions. As of
-        #     GCC 15.2, there is no predefined macro to detect
-        #     if -mstrict-align or -mno-strict-align is in effect.
-        #     We use heuristics based on compiler output.
-        #
-        # CMake < 4.1 doesn't provide a standardized/normalized list of arch
-        # names. For example, x86-64 may be "x86_64" (Linux),
-        # "AMD64" (Windows), or even "EM64T" (64-bit WinXP).
-        string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" PROCESSOR)
 
-        # CMake 4.1 made CMAKE_<LANG>_COMPILER_ARCHITECTURE_ID useful on many
+    elseif(PROCESSOR MATCHES "^powerpc|^ppc")
-        # targets. In earlier versions it's still useful with MSVC with which
+        if(WORDS_BIGENDIAN OR PROCESSOR MATCHES "64")
-        # CMAKE_SYSTEM_PROCESSOR can refer to the build machine.
-        if(NOT CMAKE_C_COMPILER_ARCHITECTURE_ID STREQUAL "")
-            # CMake 4.2.0 docs say that the list typically has only one entry
-            # except possibly on macOS. On macOS, most (all?) archs support
-            # unaligned access. Just pick the first one from the list.
-            list(GET CMAKE_C_COMPILER_ARCHITECTURE_ID 0 PROCESSOR)
-            string(TOLOWER "${PROCESSOR}" PROCESSOR)
-        endif()
-
-        # 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|^riscv" AND
-                NOT PROCESSOR MATCHES "^arm64")
-            # On 32-bit ARM, GCC and Clang # #define __ARM_FEATURE_UNALIGNED
-            # if and only if unaligned access is supported.
-            #
-            # 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-bit ARM supports fast unaligned access.
-            # If MSVC gets RISC-V support then this will assume
-            # fast unaligned access on RISC-V too.
-            check_c_source_compiles("
-                    #if !defined(__ARM_FEATURE_UNALIGNED) \
-                            && !defined(__riscv_misaligned_fast) \
-                            && !defined(_MSC_VER)
-                    compile error
-                    #endif
-                    int main(void) { return 0; }
-                "
-                TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
-            if(TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
-                set(FAST_UNALIGNED_GUESS ON)
-            endif()
-
-        elseif(PROCESSOR MATCHES "^aarch64|^arm64")
-            # On ARM64, Clang defines __ARM_FEATURE_UNALIGNED if and only if
-            # unaligned access is supported. However, GCC (at least up to 15.2.0)
-            # defines it even when using -mstrict-align, so autodetection with
-            # this macro doesn't work with GCC on ARM64. (It does work on
-            # 32-bit ARM.) See:
-            #
-            #     https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
-            #
-            # We need three checks:
-            #
-            # 1. If __ARM_FEATURE_UNALIGNED is defined and the
-            #    compiler isn't GCC, unaligned access is enabled.
-            #    If the compiler is MSVC, unaligned access is
-            #    enabled even without __ARM_FEATURE_UNALIGNED.
-            check_c_source_compiles("
-                    #if defined(__ARM_FEATURE_UNALIGNED) \
-                            && (!defined(__GNUC__) || defined(__clang__))
-                    #elif defined(_MSC_VER)
-                    #else
-                    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)
-            else()
-                # 2. If __ARM_FEATURE_UNALIGNED is not defined,
-                #    unaligned access is disabled.
-                check_c_source_compiles("
-                        #ifdef __ARM_FEATURE_UNALIGNED
-                        compile error
-                        #endif
-                        int main(void) { return 0; }
-                    "
-                    TUKLIB_FAST_UNALIGNED_NOT_DEFINED_BY_PREPROCESSOR)
-                if(NOT TUKLIB_FAST_UNALIGNED_NOT_DEFINED_BY_PREPROCESSOR)
-                    # 3. Use heuristics to detect if -mstrict-align is
-                    #    in effect when building with GCC.
-                    tuklib_integer_internal_strict_align("[ \t]ldrb[ \t]")
-                    if(NOT TUKLIB_INTEGER_STRICT_ALIGN)
-                        set(FAST_UNALIGNED_GUESS ON)
-                    endif()
-                endif()
-            endif()
-
-        elseif(PROCESSOR MATCHES "^loongarch")
-            tuklib_integer_internal_strict_align("[ \t]ld\\.bu[ \t]")
-            if(NOT TUKLIB_INTEGER_STRICT_ALIGN)
-                set(FAST_UNALIGNED_GUESS ON)
-            endif()
         endif()
 
-        if(FAST_UNALIGNED_GUESS)
+    elseif(PROCESSOR MATCHES "^arm|^aarch64|^riscv")
-            message(CHECK_PASS "yes")
+        # On 32-bit and 64-bit ARM, GCC and Clang
-        else()
+        # #define __ARM_FEATURE_UNALIGNED if
-            message(CHECK_PASS "no")
+        # unaligned access is supported.
+        #
+        # Exception: GCC at least up to 13.2.0
+        # defines it even when using -mstrict-align
+        # so in that case this autodetection goes wrong.
+        # Most of the time -mstrict-align isn't used so it
+        # shouldn't be a common problem in practice. See:
+        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
+        #
+        # RISC-V C API Specification says that if
+        # __riscv_misaligned_fast is defined then
+        # unaligned access is known to be fast.
+        #
+        # MSVC is handled as a special case: We assume that
+        # 32/64-bit ARM supports fast unaligned access.
+        # If MSVC gets RISC-V support then this will assume
+        # fast unaligned access on RISC-V too.
+        check_c_source_compiles("
+                #if !defined(__ARM_FEATURE_UNALIGNED) \
+                        && !defined(__riscv_misaligned_fast) \
+                        && !defined(_MSC_VER)
+                compile error
+                #endif
+                int main(void) { return 0; }
+            "
+            TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
+        if(TUKLIB_FAST_UNALIGNED_DEFINED_BY_PREPROCESSOR)
+            set(FAST_UNALIGNED_GUESS ON)
         endif()
     endif()
 

cmake/tuklib_large_file_support.cmake

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_large_file_support.cmake
 #
@@ -11,10 +8,11 @@
 #
 # 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(CMakePushCheckState)
 include(CheckCSourceCompiles)
 
 function(tuklib_large_file_support TARGET_OR_ALL)

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("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
 include(CheckSymbolExists)
@@ -18,8 +17,4 @@ function(tuklib_mbstr TARGET_OR_ALL)
     # NOTE: wcwidth() requires _GNU_SOURCE or _XOPEN_SOURCE on GNU/Linux.
     check_symbol_exists(wcwidth wchar.h HAVE_WCWIDTH)
     tuklib_add_definition_if("${TARGET_OR_ALL}" HAVE_WCWIDTH)
-
-    # NOTE: vasprintf() requires _GNU_SOURCE on GNU/Linux.
-    check_symbol_exists(vasprintf stdio.h HAVE_VASPRINTF)
-    tuklib_add_definition_if("${TARGET_OR_ALL}" HAVE_VASPRINTF)
 endfunction()

cmake/tuklib_physmem.cmake

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # tuklib_physmem.cmake - see tuklib_physmem.m4 for description and comments
 #
@@ -9,10 +6,11 @@
 #
 # 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(CMakePushCheckState)
 include(CheckCSourceCompiles)
 include(CheckIncludeFile)
 
@@ -77,11 +75,11 @@ function(tuklib_physmem_internal_check)
     endif()
 
     # sysctl()
-    cmake_push_check_state()
     check_include_file(sys/param.h HAVE_SYS_PARAM_H)
     if(HAVE_SYS_PARAM_H)
         list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_PARAM_H)
     endif()
+
     check_c_source_compiles("
             #ifdef HAVE_SYS_PARAM_H
             #   include <sys/param.h>
@@ -97,7 +95,6 @@ function(tuklib_physmem_internal_check)
             }
         "
         TUKLIB_PHYSMEM_SYSCTL)
-    cmake_pop_check_state()
     if(TUKLIB_PHYSMEM_SYSCTL)
         if(HAVE_SYS_PARAM_H)
             set(TUKLIB_PHYSMEM_DEFINITIONS

cmake/tuklib_progname.cmake

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

configure.ac

@@ -1,12 +1,13 @@
 #                                               -*- Autoconf -*-
-# SPDX-License-Identifier: 0BSD
+# Process this file with autoconf to produce a configure script.
 
 ###############################################################################
 #
-# Process this file with autoconf to produce a configure script.
-#
 # Author: Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 ###############################################################################
 
 # NOTE: Don't add useless checks. autoscan detects this and that, but don't
@@ -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://tukaani.org/xz/])
+	[xz@tukaani.org], [xz], [https://xz.tukaani.org/xz-utils/])
 AC_CONFIG_SRCDIR([src/liblzma/common/common.h])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
@@ -358,13 +359,8 @@ if test "x$enable_assembler" = xyes; then
 	esac
 fi
 case $enable_assembler in
-	x86)
+	x86 | no)
-		AC_DEFINE([HAVE_CRC_X86_ASM], [1], [Define to 1 if
+		AC_MSG_RESULT([$enable_assembler])
-			the 32-bit x86 CRC assembly files are used.])
-		AC_MSG_RESULT([x86])
-		;;
-	no)
-		AC_MSG_RESULT([no])
 		;;
 	*)
 		AC_MSG_RESULT([])
@@ -384,26 +380,6 @@ AC_ARG_ENABLE([clmul-crc], AS_HELP_STRING([--disable-clmul-crc],
 	[], [enable_clmul_crc=yes])
 
 
-############################
-# ARM64 CRC32 Instructions #
-############################
-
-AC_ARG_ENABLE([arm64-crc32], AS_HELP_STRING([--disable-arm64-crc32],
-		[Do not use ARM64 CRC32 instructions even if support for it
-		is detected.]),
-	[], [enable_arm64_crc32=yes])
-
-
-################################
-# LoongArch CRC32 instructions #
-################################
-
-AC_ARG_ENABLE([loongarch-crc32], AS_HELP_STRING([--disable-loongarch-crc32],
-		[Do not use LoongArch CRC32 instructions even if support for
-		them is detected.]),
-	[], [enable_loongarch_crc32=yes])
-
-
 #####################
 # Size optimization #
 #####################
@@ -531,18 +507,10 @@ AM_CONDITIONAL([COND_SCRIPTS], [test x$enable_scripts != xno])
 
 AC_ARG_ENABLE([doc], [AS_HELP_STRING([--disable-doc],
 		[do not install documentation files to docdir
-		(man pages are still installed and,
+		(man pages will still be installed)])],
-		if --enable-doxygen is used,
-		liblzma API documentation is installed too)])],
 	[], [enable_doc=yes])
 AM_CONDITIONAL([COND_DOC], [test x$enable_doc != xno])
 
-AC_ARG_ENABLE([doxygen], [AS_HELP_STRING([--enable-doxygen],
-		[generate HTML version of the liblzma API documentation
-		using Doxygen and install the result to docdir])],
-	[], [enable_doxygen=no])
-AM_CONDITIONAL([COND_DOXYGEN], [test x$enable_doxygen != xno])
-
 
 ##############
 # Sandboxing #
@@ -642,38 +610,12 @@ AM_PROG_CC_C_O
 AM_PROG_AS
 AC_USE_SYSTEM_EXTENSIONS
 
-# If using GCC or compatible compiler, verify that CFLAGS doesn't contain
-# something that makes -Werror unhappy. It's important to check this after
-# the above check for system extensions. It adds macros that can trigger,
-# for example, -Wunused-macros.
-if test "$GCC" = yes && test "x$SKIP_WERROR_CHECK" != xyes ; then
-	AC_MSG_CHECKING([if the -Werror option is usable])
-	OLD_CFLAGS=$CFLAGS
-	CFLAGS="$CFLAGS -Werror"
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[extern int foo; int foo;]])], [
-		AC_MSG_RESULT([yes])
-	], [
-		AC_MSG_RESULT([no])
-		AC_MSG_ERROR([
-    CFLAGS contains something that makes -Werror complain (see config.log).
-    This would break certain checks in 'configure'. It is strongly
-    recommended to modify CFLAGS to fix this. If you want to use noisy
-    warning options, for example, -Weverything, it is still possible to
-    add them later when running 'make': make CFLAGS+=-Weverything
-
-    In case you really want to continue with the current CFLAGS, pass
-    'SKIP_WERROR_CHECK=yes' as an argument to 'configure'.
-		])
-	])
-	CFLAGS=$OLD_CFLAGS
-fi
-
 AS_CASE([$enable_threads],
 	[posix], [
 		echo
 		echo "POSIX threading support:"
 		AX_PTHREAD([:]) dnl We don't need the HAVE_PTHREAD macro.
-		LIBS="$PTHREAD_LIBS $LIBS"
+		LIBS="$LIBS $PTHREAD_LIBS"
 		AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
 
 		dnl NOTE: PTHREAD_CC is ignored. It would be useful on AIX,
@@ -758,108 +700,66 @@ fi
 # --with-pic and --without-pic though. As long as neither --with-pic nor
 # --without-pic is used then we can use #ifdef PIC to detect if the file is
 # being built for a shared library.
-LINKER_FLAG_UNDEFINED_VERSION=
+if test "x$enable_symbol_versions" = xno ; then
-AS_IF([test "x$enable_symbol_versions" = xno], [
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no])
-], [test "x$enable_shared" = xno], [
+elif test "x$enable_shared" = xno ; then
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no (not building a shared library)])
-], [
+else
-	# "yes" means that symbol version are to be used but we need to
+	case "$host_cpu-$host_os" in
-	# autodetect which variant to use.
+		microblaze*)
-	if test "x$enable_symbol_versions" = xyes ; then
+			# GCC 12 on MicroBlaze doesn't support __symver__
-		case "$host_cpu-$host_os" in
+			# attribute. It's simplest and safest to use the
-			microblaze*)
+			# generic version on that platform since then only
-				# GCC 12 on MicroBlaze doesn't support
+			# the linker script is needed. The RHEL/CentOS 7
-				# __symver__ attribute. It's simplest and
+			# compatibility symbols don't matter on MicroBlaze.
-				# safest to use the generic version on that
+			enable_symbol_versions=generic
-				# platform since then only the linker script
+			;;
-				# is needed. The RHEL/CentOS 7 compatibility
+		*-linux*)
-				# symbols don't matter on MicroBlaze.
+			case "$pic_mode-$enable_static" in
-				enable_symbol_versions=generic
+				default-*)
-				;;
+					# Use symvers if PIC is defined.
-			*-linux*)
+					have_symbol_versions_linux=2
-				# NVIDIA HPC Compiler doesn't support symbol
+					;;
-				# versioning but the linker script can still
+				*-no)
-				# be used.
+					# Not building static library.
-				AC_EGREP_CPP([use_generic_symbol_versioning],
+					# Use symvers unconditionally.
-					[#ifdef __NVCOMPILER
+					have_symbol_versions_linux=1
-					use_generic_symbol_versioning
+					;;
-					#endif],
+				*)
-					[enable_symbol_versions=generic],
+					AC_MSG_RESULT([])
-					[enable_symbol_versions=linux])
+					AC_MSG_ERROR([
-				;;
-			*)
-				enable_symbol_versions=generic
-				;;
-		esac
-	fi
-
-	if test "x$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([
     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
+			esac
-		AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
+			enable_symbol_versions=linux
-			[$have_symbol_versions_linux],
+			AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
-			[Define to 1 to if GNU/Linux-specific details
+				[$have_symbol_versions_linux],
-			are unconditionally wanted for symbol
+				[Define to 1 to if GNU/Linux-specific details
-			versioning. Define to 2 to if these are wanted
+				are unconditionally wanted for symbol
-			only if also PIC is defined (allows building
+				versioning. Define to 2 to if these are wanted
-			both shared and static liblzma at the same
+				only if also PIC is defined (allows building
-			time with Libtool if neither --with-pic nor
+				both shared and static liblzma at the same
-			--without-pic is used). This define must be
+				time with Libtool if neither --with-pic nor
-			used together with liblzma_linux.map.])
+				--without-pic is used). This define must be
-	elif test "x$enable_symbol_versions" != xgeneric ; then
+				used together with liblzma_linux.map.])
-		AC_MSG_RESULT([])
+			;;
-		AC_MSG_ERROR([unknown symbol versioning variant '$enable_symbol_versions'])
+		*)
-	fi
+			enable_symbol_versions=generic
+			;;
+	esac
 	AC_MSG_RESULT([yes ($enable_symbol_versions)])
-
+fi
-	# If features are disabled in liblzma, some symbols may be missing.
-	# LLVM's lld defaults to --no-undefined-version and the build breaks
-	# if not all symbols in the version script exist. That is good for
-	# catching errors like typos, but in our case the downside is too big.
-	# Avoid the problem by using --undefined-version if the linker
-	# supports it.
-	#
-	# GNU ld has had --no-undefined-version for a long time but it's not
-	# the default. The opposite option --undefined-version was only added
-	# in 2022, thus we must use --undefined-version conditionally.
-	AC_MSG_CHECKING([if linker supports --undefined-version])
-	OLD_LDFLAGS=$LDFLAGS
-	LDFLAGS="$LDFLAGS -Wl,--undefined-version"
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])], [
-		LINKER_FLAG_UNDEFINED_VERSION=-Wl,--undefined-version
-		AC_MSG_RESULT([yes])
-	], [
-		AC_MSG_RESULT([no])
-	])
-	LDFLAGS=$OLD_LDFLAGS
-])
 
 AM_CONDITIONAL([COND_SYMVERS_LINUX],
 	[test "x$enable_symbol_versions" = xlinux])
 AM_CONDITIONAL([COND_SYMVERS_GENERIC],
 	[test "x$enable_symbol_versions" = xgeneric])
-AC_SUBST([LINKER_FLAG_UNDEFINED_VERSION])
 
 
 ###############################################################################
@@ -875,35 +775,6 @@ AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6])
 AM_GNU_GETTEXT_VERSION([0.19.6])
 AM_GNU_GETTEXT([external])
 
-# The command line tools use UTF-8 on native Windows. Non-ASCII characters
-# display correctly only when using UCRT and gettext-runtime >= 0.23.1.
-AS_CASE([$USE_NLS-$host_os],
-	[yes-mingw*], [
-		AC_MSG_CHECKING([for UCRT and gettext-runtime >= 0.23.1])
-		AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
-			#define WIN32_LEAN_AND_MEAN
-			#include <windows.h>
-			#include <libintl.h>
-
-			#ifndef _UCRT
-			#error "Not UCRT"
-			#endif
-
-			#if LIBINTL_VERSION < 0x001701
-			#error "gettext-runtime < 0.23.1"
-			#endif
-		]])], [
-			AC_MSG_RESULT([yes])
-		], [
-			AC_MSG_RESULT([no])
-			AC_MSG_ERROR([
-    Translation support (--enable-nls) on native Windows requires
-    UCRT and gettext-runtime >= 0.23.1. Use --disable-nls to build
-    with MSVCRT or old gettext-runtime.])
-		])
-	]
-)
-
 
 ###############################################################################
 # Checks for header files.
@@ -912,6 +783,12 @@ AS_CASE([$USE_NLS-$host_os],
 echo
 echo "System headers and functions:"
 
+# There is currently no workarounds in this package if some of
+# these headers are missing.
+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])
@@ -949,6 +826,13 @@ 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="$CFLAGS"
@@ -981,6 +865,78 @@ if test "x$enable_small$enable_threads$have_func_attribute_constructor" \
     __attribute__((__constructor__))])
 fi
 
+# __attribute__((__ifunc__())) can be used to choose between different
+# implementations of the same function at runtime. This is slightly more
+# efficient than using __attribute__((__constructor__)) and setting
+# a function pointer.
+AC_ARG_ENABLE([ifunc], [AS_HELP_STRING([--enable-ifunc],
+		[Use __attribute__((__ifunc__())). Enabled by default on
+		GNU/Linux (glibc) and FreeBSD.])],
+	[], [enable_ifunc=auto])
+
+# When enable_ifunc is 'auto', allow the use of __attribute__((__ifunc__()))
+# if compiler support is detected and we are building for GNU/Linux (glibc)
+# or FreeBSD. uClibc and musl don't support ifunc in their dynamic linkers
+# but some compilers still accept the attribute when compiling for these
+# C libraries, which results in broken binaries. That's why we need to
+# check which libc is being used.
+if test "x$enable_ifunc" = xauto ; then
+	OLD_CFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -Werror"
+	AC_MSG_CHECKING([if __attribute__((__ifunc__())) can be used])
+	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+		/*
+		 * Force a compilation error when not using glibc on Linux
+		 * or if we are not using FreeBSD. uClibc will define
+		 * __GLIBC__ but does not support ifunc, so we must have
+		 * an extra check to disable with uClibc.
+		 */
+		#if defined(__linux__)
+		#	include <features.h>
+		#	if !defined(__GLIBC__) || defined(__UCLIBC__)
+				compile error
+		#	endif
+		#elif !defined(__FreeBSD__)
+			compile error
+		#endif
+
+		static void func(void) { return; }
+		static void (*resolve_func (void)) (void) { return func; }
+		void func_ifunc (void)
+				__attribute__((__ifunc__("resolve_func")));
+		/*
+		 * 'clang -Wall' incorrectly warns that resolve_func is
+		 * unused (-Wunused-function). Correct assembly output is
+		 * still produced. This problem exists at least in Clang
+		 * versions 4 to 17. The following silences the bogus warning:
+		 */
+		void make_clang_quiet(void);
+		void make_clang_quiet(void) { resolve_func()(); }
+	]])], [
+		enable_ifunc=yes
+	], [
+		enable_ifunc=no
+	])
+
+	AC_MSG_RESULT([$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.
@@ -1008,8 +964,8 @@ AC_CHECK_DECL([CLOCK_MONOTONIC], [AC_DEFINE([HAVE_CLOCK_MONOTONIC], [1],
 # Find the best function to set timestamps.
 AC_CHECK_FUNCS([futimens futimes futimesat utimes _futime utime], [break])
 
-# These are nice to have but not mandatory.
+# This is nice to have but not mandatory.
-AC_CHECK_FUNCS([getrlimit posix_fadvise])
+AC_CHECK_FUNCS([posix_fadvise])
 
 TUKLIB_PROGNAME
 TUKLIB_INTEGER
@@ -1096,15 +1052,11 @@ AC_CHECK_DECL([_mm_movemask_epi8],
 #
 # If everything above is supported, runtime detection will be used to keep the
 # binaries working on systems that don't support the required extensions.
-#
-# NOTE: Use a check that links and not merely compiles to ensure that
-# missing intrinsics don't get accepted with compilers that allow
-# implicit function declarations.
 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_LINK_IFELSE([AC_LANG_SOURCE([[
+	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <immintrin.h>
 
 // CLMUL works on older E2K instruction set but it is slow due to emulation.
@@ -1118,11 +1070,10 @@ AS_IF([test "x$enable_clmul_crc" = xno], [
 #if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
 __attribute__((__target__("ssse3,sse4.1,pclmul")))
 #endif
-int main(void)
+__m128i my_clmul(__m128i a)
 {
-	__m128i a = _mm_set_epi64x(1, 2);
+	const __m128i b = _mm_set_epi64x(1, 2);
-	a = _mm_clmulepi64_si128(a, a, 0);
+	return _mm_clmulepi64_si128(a, b, 0);
-	return 0;
 }
 	]])], [
 		AC_DEFINE([HAVE_USABLE_CLMUL], [1],
@@ -1136,87 +1087,6 @@ int main(void)
 	AC_MSG_RESULT([$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$enable_arm64_crc32" = xno], [
-	AC_MSG_RESULT([no, --disable-arm64-crc32 was used])
-], [
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
-#include <arm_acle.h>
-#include <stdint.h>
-
-#if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
-__attribute__((__target__("+crc")))
-#endif
-int main(void)
-{
-	return __crc32d(1, 2) != 0;
-}
-	]])], [
-		AC_DEFINE([HAVE_ARM64_CRC32], [1],
-			[Define to 1 if ARM64 CRC32 instruction is supported.
-			See configure.ac for details.])
-		enable_arm64_crc32=yes
-	], [
-		enable_arm64_crc32=no
-	])
-	AC_MSG_RESULT([$enable_arm64_crc32])
-])
-
-# Check for ARM64 CRC32 instruction runtime detection.
-#
-#   - getauxval() is supported on Linux. We also need HWCAP_CRC32 which was
-#     added in glibc 2.24.
-#
-#   - elf_aux_info() is supported on FreeBSD and OpenBSD >= 7.6.
-#
-#   - 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$enable_arm64_crc32" = xyes], [
-	AC_CHECK_FUNCS([getauxval elf_aux_info sysctlbyname], [break])
-	AC_CHECK_DECL([HWCAP_CRC32], [AC_DEFINE([HAVE_HWCAP_CRC32], [1],
-		[Define to 1 if 'HWCAP_CRC32' is declared in <sys/auxv.h>.])],
-		[], [[#include <sys/auxv.h>]])
-])
-
-
-# LoongArch CRC32 intrinsics are in larchintrin.h.
-# These are supported by at least GCC and Clang.
-#
-# Only 64-bit LoongArch is currently supported.
-# It doesn't need runtime detection.
-AC_MSG_CHECKING([if LoongArch CRC32 instructions are usable])
-AS_IF([test "x$enable_loongarch_crc32" = xno], [
-	AC_MSG_RESULT([no, --disable-loongarch-crc32 was used])
-], [
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
-#if !(defined(__loongarch__) && __loongarch_grlen >= 64)
-#	error
-#endif
-
-#include <larchintrin.h>
-int main(void)
-{
-	return __crc_w_w_w(1, 2);
-}
-	]])], [
-		AC_DEFINE([HAVE_LOONGARCH_CRC32], [1], [Define to 1 if
-			64-bit LoongArch CRC32 instructions are supported.])
-		enable_loongarch_crc32=yes
-	], [
-		enable_loongarch_crc32=no
-	])
-	AC_MSG_RESULT([$enable_loongarch_crc32])
-])
-
-
 # Check for sandbox support. If one is found, set enable_sandbox=found.
 #
 # About -fsanitize: Of our three sandbox methods, only Landlock is
@@ -1241,38 +1111,12 @@ AS_CASE([$enable_sandbox],
 )
 AS_CASE([$enable_sandbox],
 	[auto | landlock], [
-		AC_MSG_CHECKING([if Linux Landlock is usable])
+		AC_CHECK_HEADERS([linux/landlock.h], [
-
-		# 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_LINK_IFELSE([AC_LANG_SOURCE([[
-			#include <linux/landlock.h>
-			#include <sys/syscall.h>
-			#include <sys/prctl.h>
-
-			int main(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 0;
-			}
-		]])], [
 			enable_sandbox=found
 
-			AS_CASE(["$CC $CFLAGS"], [*-fsanitize=*],
+			AS_CASE([$CFLAGS], [*-fsanitize=*], [AC_MSG_ERROR([
-				[AC_MSG_ERROR([
+    CFLAGS contains '-fsanitize=' which is incompatible with the Landlock
-    CC or CFLAGS contain '-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])
 		])
 	]
 )
@@ -1346,8 +1190,6 @@ AS_IF([test "$GCC" = yes], [
 			-Wmissing-prototypes \
 			-Wmissing-declarations \
 			-Wredundant-decls \
-			-Wimplicit-fallthrough \
-			-Wimplicit-fallthrough=5 \
 			\
 			-Wc99-compat \
 			-Wc11-extensions \
@@ -1360,7 +1202,6 @@ AS_IF([test "$GCC" = yes], [
 			-Wdocumentation \
 			-Wduplicate-enum \
 			-Wempty-translation-unit \
-			-Wextra-semi-stmt \
 			-Wflexible-array-extensions \
 			-Wmissing-variable-declarations \
 			-Wnewline-eof \

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
@@ -11,8 +15,7 @@ noinst_PROGRAMS = \
 	memusage \
 	crc32 \
 	known_sizes \
-	hex2bin \
+	hex2bin
-	testfilegen-arm64
 
 AM_CPPFLAGS = \
 	-I$(top_srcdir)/src/common \

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/testfilegen-arm64.c

@@ -1,116 +0,0 @@
-// SPDX-License-Identifier: 0BSD
-
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file       testfilegen-arm64.c
-/// \brief      Generates uncompressed test file for the ARM64 filter
-//
-//  Author:     Lasse Collin
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-
-
-static uint32_t pc4 = 0;
-
-
-static void
-put32le(uint32_t v)
-{
-	putchar((v >> 0) & 0xFF);
-	putchar((v >> 8) & 0xFF);
-	putchar((v >> 16) & 0xFF);
-	putchar((v >> 24) & 0xFF);
-	++pc4;
-}
-
-
-static void
-putbl(uint32_t imm)
-{
-	imm &= (1U << 26) - 1;
-	imm |= 0x25U << 26;
-	put32le(imm);
-}
-
-
-static void
-putadrp32(uint32_t imm)
-{
-	imm &= 0x1FFFFFU;
-
-	// fprintf(stderr, "ADRP 0x%08X\n", imm);
-
-	uint32_t instr = 0x90000000;
-	instr |= (pc4 * 5 + 11) & 0x1F;
-	instr |= (imm & 3) << 29;
-	instr |= (imm >> 2) << 5;
-
-	put32le(instr);
-}
-
-
-extern int
-main(void)
-{
-	putbl(0);
-	putbl(0x03FFFFFF);
-	putbl(0x03FFFFFE);
-	putbl(0x03FFFFFD);
-
-	putbl(3);
-	putbl(2);
-	putbl(1);
-	putbl(0);
-
-
-	putbl(0x02000001);
-	putbl(0x02000000);
-	putbl(0x01FFFFFF);
-	putbl(0x01FFFFFE);
-
-	putbl(0x01111117);
-	putbl(0x01111116);
-	putbl(0x01111115);
-	putbl(0x01111114);
-
-
-	putbl(0x02222227);
-	putbl(0x02222226);
-	putbl(0x02222225);
-	putbl(0x02222224);
-
-	putbl(0U - pc4);
-	putbl(0U - pc4);
-	putbl(0U - pc4);
-	putbl(0U - pc4);
-
-	putadrp32(0x00);
-	putadrp32(0x05);
-	putadrp32(0x15);
-	putadrp32(0x25);
-
-	for (unsigned rep = 0; rep < 2; ++rep) {
-		while ((pc4 << 2) & 4095)
-			put32le(0x55555555U);
-
-		for (unsigned i = 10; i <= 21; ++i) {
-			const uint32_t neg = (0x1FFF00 >> (21 - i)) & ~255U;
-			const uint32_t plus = 1U << (i - 1);
-			putadrp32(0x000000 | plus);
-			putadrp32(0x000005 | plus);
-			putadrp32(0x0000FE | plus);
-			putadrp32(0x0000FF | plus);
-
-			putadrp32(0x000000 | neg);
-			putadrp32(0x000005 | neg);
-			putadrp32(0x0000FE | neg);
-			putadrp32(0x0000FF | neg);
-		}
-	}
-
-	return 0;
-}

debug/translation.bash

@@ -1,5 +1,4 @@
 #!/bin/bash
-# SPDX-License-Identifier: 0BSD
 
 ###############################################################################
 #
@@ -10,8 +9,8 @@
 # cover most of the cases where mistakes can easily happen.
 #
 # Give the path and filename of the xz executable as an argument. If no
-# arguments are given, this script uses src/xz/xz (relative to the current
+# arguments are given, this script uses ../src/xz/xz (relative to the
-# directory).
+# location of this script).
 #
 # You may want to pipe the output of this script to less -S to view the
 # tables printed by xz --list on a 80-column terminal. On the other hand,
@@ -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
@@ -32,6 +34,10 @@ if [ -n "$1" ]; then
 	[ "x${XZ:0:1}" != "x/" ] && XZ="$PWD/$XZ"
 fi
 
+# Locate top_srcdir and go there.
+top_srcdir="$(cd -- "$(dirname -- "$0")" && cd .. && pwd)"
+cd -- "$top_srcdir"
+
 # If XZ wasn't already set, use the default location.
 XZ=${XZ-"$PWD/src/xz/xz"}
 if [ "$(type -t "$XZ" || true)" != "file" ]; then
@@ -41,20 +47,15 @@ if [ "$(type -t "$XZ" || true)" != "file" ]; then
 fi
 XZ=$(type -p -- "$XZ")
 
-# Locate top_srcdir and go there.
-top_srcdir="$(cd -- "$(dirname -- "$0")" && cd .. && pwd)"
-cd -- "$top_srcdir"
-
 # Print the xz version and locale information.
 echo "$XZ --version"
 "$XZ" --version
 echo
 if [ -d .git ] && type git > /dev/null 2>&1; then
 	echo "Source code version in $PWD:"
-	git describe --abbrev=8
+	git describe --abbrev=4
 fi
 echo
-echo "LANGUAGE=$LANGUAGE"
 locale
 echo
 
@@ -79,13 +80,17 @@ for CMD in \
 	"xz --lzma2=foobarbaz=abcd" \
 	"xz --lzma2=mf=abcd" \
 	"xz --lzma2=preset=foobarbaz" \
+	"xz --lzma2=mf=bt4,nice=2" \
 	"xz --lzma2=nice=50000" \
 	"xz --help" \
 	"xz --long-help" \
-	"xz --filters-help" \
 	"xz --list good-*lzma2*" \
-	"xz --list good-1-check* unsupported-check.xz" \
+	"xz --list good-1-check*" \
-	"xz --list --verbose --verbose good-1-arm64-lzma2-1.xz good-1-block_header-1.xz good-1-check-sha256.xz good-2-lzma2.xz"
+	"xz --list --verbose good-*lzma2*" \
+	"xz --list --verbose good-1-check*" \
+	"xz --list --verbose --verbose good-*lzma2*" \
+	"xz --list --verbose --verbose good-1-check*" \
+	"xz --list --verbose --verbose unsupported-check.xz"
 do
 	echo "-----------------------------------------------------------"
 	echo

doc/SHA256SUMS

@@ -1,249 +0,0 @@
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-330312c4397608d8b7be362cc7edbfeafa6101614bc2164d816ea767656aa15c  xz-4.999.9beta.tar.bz2
-fa3901d1c034842da47fec1a24a9b5a5bd435f5ecfbb444c168512e2daddb86f  xz-4.999.9beta.tar.gz
-d6649124c7046caea616f599716a559c971c97947e4533c8f25f683310154e8c  xz-4.999.9beta.tar.xz
-0cb40c62ab80536c9cda0125bad445994c0c48f7f9e7c5a3839dbe2be7e7dabc  xz-5.0.0.tar
-47a89e65c4690364a0123871a221e663d23a9fbd1ca756a804b10dd4006056d8  xz-5.0.0.tar.bz2
-eba9211990a642fc2c35ea02618b710c7fa898d78ccca48b546a07bdde03c44d  xz-5.0.0.tar.gz
-2da61184b5da24b7dd9266416259dbf65212d1ef83726202427233e7fcfe5754  xz-5.0.0.tar.xz
-2485450f5bdfcdef701454c0ae61eeab144e852a20a14e07b0f3cba2f2a758e9  xz-5.0.0-dos.zip
-ba46384f060b2c6646f2b342cc9de0e220d057f1ee148b5002eafe7156f27412  xz-5.0.0-windows.zip
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-e0aa4e3d504d7b27b9d6b76107d0f3656a06a3217dd5006c401aa83d18931b40  xz-5.0.1.tar
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-610c4d79ea3a56bfd1df178578aa17e10a88d58a362b0a7b3fa47321469bae20  xz-5.4.4.tar.zst
-3ee65a3efb5c96da5e50a0f16567a926258f83f472d2773d40c4d19c8873daad  xz-5.4.5.tar
-8ccf5fff868c006f29522e386fb4c6a1b66463fbca65a4cfc3c4bd596e895e79  xz-5.4.5.tar.bz2
-135c90b934aee8fbc0d467de87a05cb70d627da36abe518c357a873709e5b7d6  xz-5.4.5.tar.gz
-da9dec6c12cf2ecf269c31ab65b5de18e8e52b96f35d5bcd08c12b43e6878803  xz-5.4.5.tar.xz
-9ab5561ce9fed7860695c14b955a0ebec2df9a00fb171862a25910546a1737cc  xz-5.4.5.tar.zst
-b32e1195788a00ca01ea43bc5ea67ecf5bdbaf35ea8faa272da0066e795cb7e2  xz-5.4.6.tar
-913851b274e8e1d31781ec949f1c23e8dbcf0ecf6e73a2436dc21769dd3e6f49  xz-5.4.6.tar.bz2
-aeba3e03bf8140ddedf62a0a367158340520f6b384f75ca6045ccc6c0d43fd5c  xz-5.4.6.tar.gz
-b92d4e3a438affcf13362a1305cd9d94ed47ddda22e456a42791e630a5644f5c  xz-5.4.6.tar.xz
-21326933d567a87a7d7484a22cd5723387a71b5934b131dc91ea7495a813bdf3  xz-5.4.6.tar.zst
-f30cdc66bb071622b382106b0a06ef0e28263e5656a96d88ff55cf92786391f9  xz-5.4.7.tar
-9976ed9cd0764e962d852d7d519ee1c3a7f87aca3b86e5d021a45650ba3ecb41  xz-5.4.7.tar.bz2
-8db6664c48ca07908b92baedcfe7f3ba23f49ef2476864518ab5db6723836e71  xz-5.4.7.tar.gz
-016182c70bb5c7c9eb3465030e3a7f6baa25e17b0e8c0afe92772e6021843ce2  xz-5.4.7.tar.xz
-f4a16279ebe33a607a41536fd203dc9337bdd6395ef72130cff47dc8276fd9ff  xz-5.6.2.tar
-e12aa03cbd200597bd4ce11d97be2d09a6e6d39a9311ce72c91ac7deacde3171  xz-5.6.2.tar.bz2
-8bfd20c0e1d86f0402f2497cfa71c6ab62d4cd35fd704276e3140bfb71414519  xz-5.6.2.tar.gz
-a9db3bb3d64e248a0fae963f8fb6ba851a26ba1822e504dc0efd18a80c626caf  xz-5.6.2.tar.xz
-31f58851acdf0d24d15bce14782dafa5a447ee922eaa39859170277dc9a8fae7  xz-5213-547-562-libtool.patch
-b55087b6e30fb0cb0175e89022dafd4acb46190a4ec6831cb3e21172fc815186  xz-5.6.3.tar
-a95a49147b2dbb5487517acc0adcd77f9c2032cf00664eeae352405357d14a6c  xz-5.6.3.tar.bz2
-b1d45295d3f71f25a4c9101bd7c8d16cb56348bbef3bbc738da0351e17c73317  xz-5.6.3.tar.gz
-db0590629b6f0fa36e74aea5f9731dc6f8df068ce7b7bafa45301832a5eebc3a  xz-5.6.3.tar.xz
-c06b09e74a64616c36ce7c65c8af442d62031135f948d04c704f46d8c2cc2fef  xz-5.6.4.tar
-176d510c30d80a23b8050bbc048f2ecaacb823ae48b6821727ed6591f0df9200  xz-5.6.4.tar.bz2
-269e3f2e512cbd3314849982014dc199a7b2148cf5c91cedc6db629acdf5e09b  xz-5.6.4.tar.gz
-829ccfe79d769748f7557e7a4429a64d06858e27e1e362e25d01ab7b931d9c95  xz-5.6.4.tar.xz
-e5403003b4698967680ca57c733e11fdc110426858091cc83c8df8f4322957ee  xz-5.6.4-windows.zip
-a69d83338facb6e9a45147384beb7d7d8ed53b5e2a41e8c059ae0d0260b356ac  xz-5.6.4-windows.7z
-31199267fba9588305c0df3de5d6d9898d00c4ee02f5eee19f79baa427628519  xz-5.7.1alpha.tar
-ae655a4bec0820f750985ecd270d6802ae0a987bb1cb03d41d9afa37abc2e87c  xz-5.7.1alpha.tar.gz
-c859193b8619f6818326141ee041870d9b76ba83f55c3c94ebcfcb71e1f79e5d  xz-5.7.1alpha.tar.xz
-b75a932fa38515e5d3953242b1e3c2e7edd882504b24280f0e9776d596e9cc0d  xz-5.7.2beta.tar
-608ed92561c9f27a1eead76653c6f63c6a40d0a20ec91753ed508ba40f9703b3  xz-5.7.2beta.tar.gz
-98a61e45e5917b93ce17d826ef2d11f9331951882b2558675cdf115cdf3f77c8  xz-5.7.2beta.tar.xz
-bdff4615bf19c46042bced4d7b8c52bdacce61261b39db464d482692c948dd02  xz-5.8.0.tar
-8c107270289807e2047f35d687b4d7a5bb029137f7c89ebdcfa909cb3b674440  xz-5.8.0.tar.bz2
-b523c5e47d1490338c5121bdf2a6ecca2bcf0dce05a83ad40a830029cbe6679b  xz-5.8.0.tar.gz
-05ecad9e71919f4fca9f19fbbc979ea28e230188ed123dc6f06b98031ea14542  xz-5.8.0.tar.xz
-397165cedccb8e16700b8fdd026c3fd7ff2d18923e28cfbf7d0c5f89cd6a50af  xz-5.8.0-windows.zip
-078caa9d406018d4d43df343455f57811e9ba69c1340670a85a0ae6341d42ba3  xz-5.8.0-windows.7z
-ee188eabc3220684422f62df7a385541a86d2a5c385407f9d8fd94d49b251c4e  xz-cve-2025-31115.patch
-c9789682496d124fd214e665f6aa2f6d3d9e8527a7f0e120f9180c531d322bd6  xz-5.8.1.tar
-5965c692c4c8800cd4b33ce6d0f6ac9ac9d6ab227b17c512b6561bce4f08d47e  xz-5.8.1.tar.bz2
-507825b599356c10dca1cd720c9d0d0c9d5400b9de300af00e4d1ea150795543  xz-5.8.1.tar.gz
-0b54f79df85912504de0b14aec7971e3f964491af1812d83447005807513cd9e  xz-5.8.1.tar.xz
-62fdfde73d5c5d293bbb4a96211b29d09adbd56bc6736976e4c9fc9942ae3c67  xz-5.8.1-windows.zip
-8ed1403fe6c971a2a6ac85fb7b27c8438b83175bc6f3bc49fec06540c904c84d  xz-5.8.1-windows.7z
-b4c8a939220546e275456fac3d19540b152a85dfdb13d6e36289ed8fb49cb700  xz-5.8.2.tar
-60345d7c0b9c8d7ffa469e96898c300def3669f5047fc76219b819340839f3d8  xz-5.8.2.tar.bz2
-ce09c50a5962786b83e5da389c90dd2c15ecd0980a258dd01f70f9e7ce58a8f1  xz-5.8.2.tar.gz
-890966ec3f5d5cc151077879e157c0593500a522f413ac50ba26d22a9a145214  xz-5.8.2.tar.xz
-c90c4044b9562594d2125409dd4969ce0e281b9db60d2224c2f4a5419c7e2a4e  xz-5.8.2-windows.zip
-a64996b3219461bd959735376eb413fecfe71a6247bcdb870a7be30bf2040fd8  xz-5.8.2-windows.7z

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>

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>
@@ -45,7 +46,7 @@ init_encoder(lzma_stream *strm)
 	}
 
 	// Now we could customize the LZMA2 options if we wanted. For example,
-	// we could set the dictionary size (opt_lzma2.dict_size) to
+	// we could set the the dictionary size (opt_lzma2.dict_size) to
 	// something else than the default (8 MiB) of the default preset.
 	// See lzma/lzma12.h for details of all LZMA2 options.
 	//

doc/examples/04_compress_easy_mt.c

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

doc/examples/11_file_info.c

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

doc/examples/Makefile

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

doc/examples_old/xz_pipe_comp.c

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

doc/examples_old/xz_pipe_decomp.c

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

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://tukaani.org/xz/embedded.html>.
+    at <https://xz.tukaani.org/xz-embedded/>.
 

doc/lzma-file-format.txt

@@ -40,11 +40,11 @@ The .lzma File Format
 
 0.2. Changes
 
-        Last modified: 2024-04-08 17:35+0300
+        Last modified: 2024-01-16 18:00+0800
 
-        From version 2011-04-12 11:55+0300 to 2022-07-13 21:00+0300:
+        Compared to the previous version (2022-07-13 21:00+0300)
-        The section 1.1.3 was modified to allow End of Payload Marker
+        the section 2 was modified to change links from http to
-        with a known Uncompressed Size.
+        https and to update XZ links.
 
 
 1. File Format
@@ -166,8 +166,8 @@ The .lzma File Format
         https://tukaani.org/lzma/
 
         XZ Utils - The next generation of LZMA Utils
-        https://tukaani.org/xz/
+        https://xz.tukaani.org/xz-utils/
 
         The .xz file format - The successor of the .lzma format
-        https://tukaani.org/xz/xz-file-format.txt
+        https://xz.tukaani.org/format/xz-file-format.txt
 

doc/xz-file-format.txt

@@ -2,7 +2,7 @@
 The .xz File Format
 ===================
 
-Version 1.2.1 (2024-04-08)
+Version 1.2.0 (2024-01-19)
 
 
         0. Preface
@@ -81,22 +81,18 @@ Version 1.2.1 (2024-04-08)
 0.2. Getting the Latest Version
 
         The latest official version of this document can be downloaded
-        from <https://tukaani.org/xz/xz-file-format.txt>.
+        from <https://xz.tukaani.org/format/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://tukaani.org/xz/xz-file-format-1.0.0.txt>.
+        at <https://xz.tukaani.org/format/xz-file-format-1.0.0.txt>.
 
 
 0.3. Version History
 
         Version   Date          Description
 
-        1.2.1     2024-04-08    The URLs of this specification and
-                                XZ Utils were changed back to the
-                                original ones in Sections 0.2 and 7.
-
         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.
@@ -1151,7 +1147,7 @@ Version 1.2.1 (2024-04-08)
         https://tukaani.org/lzma/
 
         XZ Utils - The next generation of LZMA Utils
-        https://tukaani.org/xz/
+        https://xz.tukaani.org/xz-utils/
 
         [RFC-1952]
         GZIP file format specification version 4.3

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
@@ -45,15 +46,13 @@ SRCS_C = \
 	../src/common/tuklib_cpucores.c \
 	../src/common/tuklib_exit.c \
 	../src/common/tuklib_mbstr_fw.c \
-	../src/common/tuklib_mbstr_nonprint.c \
 	../src/common/tuklib_mbstr_width.c \
-	../src/common/tuklib_mbstr_wrap.c \
 	../src/common/tuklib_open_stdxxx.c \
 	../src/common/tuklib_physmem.c \
 	../src/common/tuklib_progname.c \
 	../src/liblzma/check/check.c \
-	../src/liblzma/check/crc32_fast.c \
+	../src/liblzma/check/crc32_table.c \
-	../src/liblzma/check/crc64_fast.c \
+	../src/liblzma/check/crc64_table.c \
 	../src/liblzma/check/sha256.c \
 	../src/liblzma/common/alone_decoder.c \
 	../src/liblzma/common/alone_encoder.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
 
@@ -12,9 +10,6 @@
 /* Define to 1 if sha256 integrity check is enabled. */
 #define HAVE_CHECK_SHA256 1
 
-/* Define to 1 if the 32-bit x86 CRC assembly files are used. */
-#define HAVE_CRC_X86_ASM 1
-
 /* Define to 1 if any of HAVE_DECODER_foo have been defined. */
 #define HAVE_DECODERS 1
 
@@ -84,6 +79,9 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #define HAVE_INTTYPES_H 1
 
+/* 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
 
@@ -108,6 +106,15 @@
 /* Define to 1 if you have the <stdint.h> header file. */
 #define HAVE_STDINT_H 1
 
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* 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 HAVE_UTIMES 1
 
@@ -136,7 +143,7 @@
 #define PACKAGE_NAME "XZ Utils"
 
 /* Define to the home page for this package. */
-#define PACKAGE_URL "https://tukaani.org/xz/"
+#define PACKAGE_URL "https://xz.tukaani.org/xz-utils/"
 
 /* The size of 'size_t', as computed by sizeof. */
 #define SIZEOF_SIZE_T 4

doxygen/footer.html

@@ -0,0 +1,11 @@
+<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"
+	   target="_blank"
+	   rel="license noopener noreferrer"
+	   style="display:inline-block;">
+		CC BY-SA 4.0
+	</a>
+</p>

doxygen/update-doxygen

@@ -1,86 +1,53 @@
 #!/bin/sh
-# SPDX-License-Identifier: 0BSD
+#
-
 #############################################################################
 #
-# While it's possible to use the Doxyfile as is to generate liblzma API
+# Updates the Doxygen generated documentation files in the source tree.
-# documentation, it is recommended to use this script because this adds
+# If the doxygen command is not installed, it will exit with an error.
-# the XZ Utils version number to the generated HTML.
+# This script can generate Doxygen documentation for all source files or for
+# just liblzma API header files.
 #
-# Other features:
+# It is recommended to use this script to update the Doxygen-generated HTML
-#  - Generate documentation of the XZ Utils internals.
+# files since this will include the package version in the output and,
-#  - Set input and output paths for out-of-tree builds.
+# in case of liblzma API docs, strip JavaScript files from the output.
 #
 #############################################################################
 #
 # Authors: Jia Tan
 #          Lasse Collin
 #
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
 #############################################################################
 
 set -e
 
-show_usage()
-{
-	echo "Usage: $0 <api|internal> [ABS_TOP_SRCDIR ABS_OUTDIR]"
-	echo
-	echo "Supported modes:"
-	echo " - 'api' (default): liblzma API docs into doc/api"
-	echo " - 'internal': internal docs into doc/internal"
-	echo
-	echo "Absolute source and output dirs may be set" \
-		"to do an out-of-tree build."
-	echo "The output directory must already exist."
-	exit 1
-}
-
-case $1 in
-	api|internal)
-		;;
-	*)
-		show_usage
-		;;
-esac
-
 if type doxygen > /dev/null 2>&1; then
 	:
 else
-	echo "$0: 'doxygen' command not found" >&2
+	echo "doxygen/update-doxygen: 'doxygen' command not found." >&2
+	echo "doxygen/update-doxygen: Skipping Doxygen docs generation." >&2
 	exit 1
 fi
 
-case $# in
+if test ! -f Doxyfile; then
-	1)
+	cd `dirname "$0"` || exit 1
-		# One argument: Building inside the source tree
+	if test ! -f Doxyfile; then
-		ABS_TOP_SRCDIR=`dirname "$0"`/..
+		echo "doxygen/update-doxygen: Cannot find Doxyfile" >&2
-		ABS_OUTDIR=$ABS_TOP_SRCDIR/doc
+		exit 1
-		;;
+	fi
-	3)
-		# Three arguments: Possibly an out of tree build
-		ABS_TOP_SRCDIR=$2
-		ABS_OUTDIR=$3
-		;;
-	*)
-		show_usage
-		;;
-esac
-
-if test ! -f "$ABS_TOP_SRCDIR/doxygen/Doxyfile"; then
-	echo "$0: Source dir '$ABS_TOP_SRCDIR/doxygen/Doxyfile' not found" >&2
-	exit 1
-fi
-if test ! -d "$ABS_OUTDIR"; then
-	echo "$0: Output dir '$ABS_OUTDIR' not found" >&2
-	exit 1
 fi
 
 # Get the package version so that it can be included in the generated docs.
-PACKAGE_VERSION=`cd "$ABS_TOP_SRCDIR" && sh build-aux/version.sh`
+PACKAGE_VERSION=`cd .. && sh build-aux/version.sh` || exit 1
 
+# If no arguments are specified, default to generating liblzma API header
+# documentation only.
 case $1 in
-	api)
+	'' | api)
 		# Remove old documentation before re-generating the new.
-		rm -rf "$ABS_OUTDIR/api"
+		rm -rf ../doc/api
 
 		# Generate the HTML documentation by preparing the Doxyfile
 		# in stdin and piping the result to the doxygen command.
@@ -88,27 +55,57 @@ case $1 in
 		# override any earlier assignment. So, we can use this
 		# feature to override the tags that need to change between
 		# "api" and "internal" modes.
-		ABS_SRCDIR=$ABS_TOP_SRCDIR/src/liblzma/api
 		(
-			cat "$ABS_TOP_SRCDIR/doxygen/Doxyfile"
+			cat Doxyfile
 			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
-			echo "OUTPUT_DIRECTORY       = $ABS_OUTDIR"
+		) | doxygen -
-			echo "STRIP_FROM_PATH        = $ABS_SRCDIR"
+
-			echo "INPUT                  = $ABS_SRCDIR"
+		# As of Doxygen 1.8.0 - 1.9.6 and the Doxyfile options we use,
-		) | doxygen -q -
+		# the output is good without any JavaScript. Unfortunately
+		# Doxygen doesn't have an option to disable JavaScript usage
+		# completely so we strip it away with the hack below.
+		#
+		# Omitting the JavaScript code avoids some license hassle
+		# as jquery.js is fairly big, it contains more than jQuery
+		# itself, and doesn't include the actual license text (it
+		# only refers to the MIT license by name).
+		echo "Stripping JavaScript from Doxygen output..."
+		for F in ../doc/api/*.html
+		do
+			sed 's/<script [^>]*><\/script>//g
+				s/onclick="[^"]*"//g' \
+				"$F" > ../doc/api/tmp
+			mv -f ../doc/api/tmp "$F"
+		done
+		rm -f ../doc/api/*.js
 		;;
 
 	internal)
-		rm -rf "$ABS_OUTDIR/internal"
+		# The docs from internal aren't for distribution so
+		# the JavaScript files aren't an issue here.
+		rm -rf ../doc/internal
 		(
-			cat "$ABS_TOP_SRCDIR/doxygen/Doxyfile"
+			cat Doxyfile
-			echo 'PROJECT_NAME           = "XZ Utils"'
 			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
-			echo "OUTPUT_DIRECTORY       = $ABS_OUTDIR"
+			echo 'PROJECT_NAME           = "XZ Utils"'
-			echo "STRIP_FROM_PATH        = $ABS_TOP_SRCDIR"
+			echo 'STRIP_FROM_PATH        = ../src'
-			echo "INPUT                  = $ABS_TOP_SRCDIR/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 -q -
+		) | 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.
 ##

lib/getopt-cdefs.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt-core.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt-ext.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt-pfx-core.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt-pfx-ext.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt.c

@@ -1,5 +1,3 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-
 /* Getopt for GNU.
    Copyright (C) 1987-2023 Free Software Foundation, Inc.
    This file is part of the GNU C Library and is also part of gnulib.

lib/getopt.in.h

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt1.c

@@ -1,5 +1,3 @@
-/* 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.

lib/getopt_int.h

@@ -1,5 +1,3 @@
-/* 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.

m4/.gitignore

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

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

@@ -1,5 +1,3 @@
-dnl SPDX-License-Identifier: FSFULLR
-
 # getopt.m4 serial 49 (modified version)
 dnl Copyright (C) 2002-2006, 2008-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
@@ -8,10 +6,10 @@ 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.
-#
-# Pass gl_replace_getopt=yes (or any non-empty value instead of "yes") as
-# an argument to configure to force the use of the getopt_long replacement.
 
+# 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_REQUIRE([gl_GETOPT_CHECK_HEADERS])
@@ -23,6 +21,8 @@ AC_DEFUN([gl_FUNC_GETOPT_GNU],
 
 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])
   fi

m4/posix-shell.m4

@@ -1,14 +1,11 @@
-dnl SPDX-License-Identifier: FSFULLR
-
-# posix-shell.m4
-# serial 1
-dnl Copyright (C) 2007-2024 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.
-
 # Find a POSIX-conforming shell.
 
+# Copyright (C) 2007-2008 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
 # Written by Paul Eggert.
 
 # If a POSIX-conforming shell can be found, set POSIX_SHELL and
@@ -20,22 +17,22 @@ AC_DEFUN([gl_POSIX_SHELL],
   AC_CACHE_CHECK([for a shell that conforms to POSIX], [gl_cv_posix_shell],
     [gl_test_posix_shell_script='
        func_return () {
-         (exit [$]1)
+	 (exit [$]1)
        }
        func_success () {
-         func_return 0
+	 func_return 0
        }
        func_failure () {
-         func_return 1
+	 func_return 1
        }
        func_ret_success () {
-         return 0
+	 return 0
        }
        func_ret_failure () {
-         return 1
+	 return 1
        }
        subshell_umask_sanity () {
-         (umask 22; (umask 0); test $(umask) -eq 22)
+	 (umask 22; (umask 0); test $(umask) -eq 22)
        }
        test "[$](echo foo)" = foo &&
        func_success &&
@@ -46,11 +43,11 @@ AC_DEFUN([gl_POSIX_SHELL],
        subshell_umask_sanity
      '
      for gl_cv_posix_shell in \
-         "$CONFIG_SHELL" "$SHELL" /bin/sh /bin/bash /bin/ksh /bin/sh5 no; do
+	 "$CONFIG_SHELL" "$SHELL" /bin/sh /bin/bash /bin/ksh /bin/sh5 no; do
        case $gl_cv_posix_shell in
          /*)
-           "$gl_cv_posix_shell" -c "$gl_test_posix_shell_script" 2>/dev/null \
+	   "$gl_cv_posix_shell" -c "$gl_test_posix_shell_script" 2>/dev/null \
-             && break;;
+	     && break;;
        esac
      done])
 

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])
@@ -71,7 +70,7 @@ main(void)
 # -lfreebsd-glue when linking and thus in the current form this would
 # fail on GNU/kFreeBSD. The above test for sched_getaffinity() matches
 # on GNU/kFreeBSD so the test below should never run on that OS.
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/param.h>
 #include <sys/cpuset.h>
 
@@ -92,7 +91,7 @@ main(void)
 #
 # We test sysctl() first and intentionally break the sysctl() test on QNX
 # so that sysctl() is never used on QNX.
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #ifdef __QNX__
 compile error
 #endif
@@ -116,7 +115,7 @@ main(void)
 }
 ]])], [tuklib_cv_cpucores_method=sysctl], [
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <unistd.h>
 int
 main(void)
@@ -133,7 +132,7 @@ main(void)
 }
 ]])], [tuklib_cv_cpucores_method=sysconf], [
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/param.h>
 #include <sys/pstat.h>
 

m4/tuklib_integer.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -14,11 +11,13 @@
 #     - Does the hardware support fast unaligned access to 16-bit, 32-bit,
 #       and 64-bit integers
 #
-#############################################################################
+# COPYING
 #
-# Author: Lasse Collin
+#   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])
@@ -62,58 +61,6 @@ main(void)
 	fi
 ])
 
-# On archs that we use tuklib_integer_strict_align() (see below), we need
-# objdump to detect support for unaligned access. (Libtool needs objdump
-# too, so Libtool does this same tool check as well.)
-AC_CHECK_TOOL([OBJDUMP], [objdump], [false])
-
-# An internal helper that attempts to detect if -mstrict-align or
-# -mno-strict-align is in effect. This sets enable_unaligned_access=yes
-# if compilation succeeds and the regex passed as an argument does *not*
-# match the objdump output of a check program. Otherwise this sets
-# enable_unaligned_access=no.
-tuklib_integer_strict_align ()
-{
-	# First guess no.
-	enable_unaligned_access=no
-
-	# Force -O2 because without optimizations the memcpy()
-	# won't be optimized out.
-	tuklib_integer_saved_CFLAGS=$CFLAGS
-	CFLAGS="$CFLAGS -O2"
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
-			#include <string.h>
-			unsigned int check_strict_align(const void *p)
-			{
-				unsigned int i;
-				memcpy(&i, p, sizeof(i));
-				return i;
-			}
-		]])], [
-			# Disassemble the test function from the object file.
-			if $OBJDUMP -d conftest.$ac_objext > conftest.s ; then
-				# This function should be passed a regex that
-				# matches if there are instructions that load
-				# unsigned bytes. Such instructions indicate
-				# that -mstrict-align is in effect.
-				#
-				# NOTE: Use braces to avoid M4 parameter
-				# expansion.
-				if grep -- "${1}" conftest.s > /dev/null ; then
-					:
-				else
-					# No single-byte unsigned load
-					# instructions were found,
-					# so it seems that -mno-strict-align
-					# is in effect.
-					# Override our earlier guess.
-					enable_unaligned_access=yes
-				fi
-			fi
-		])
-	CFLAGS=$tuklib_integer_saved_CFLAGS
-}
-
 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
@@ -130,90 +77,34 @@ if test "x$enable_unaligned_access" = xauto ; then
 		i?86|x86_64|powerpc|powerpc64|powerpc64le)
 			enable_unaligned_access=yes
 			;;
-		arm*|riscv*)
+		arm*|aarch64*|riscv*)
-			# On 32-bit ARM, GCC and Clang
+			# On 32-bit and 64-bit ARM, GCC and Clang
-			# #define __ARM_FEATURE_UNALIGNED
+			# #define __ARM_FEATURE_UNALIGNED if
-			# if and only if unaligned access is supported.
+			# 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-bit ARM supports fast unaligned access.
+			# 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) \
+#if !defined(__ARM_FEATURE_UNALIGNED) \
-					&& !defined(__riscv_misaligned_fast) \
+		&& !defined(__riscv_misaligned_fast) \
-					&& !defined(_MSC_VER)
+		&& !defined(_MSC_VER)
-				compile error
+compile error
-				#endif
+#endif
-				int main(void) { return 0; }
+int main(void) { return 0; }
-			])],
+])], [enable_unaligned_access=yes], [enable_unaligned_access=no])
-			[enable_unaligned_access=yes],
-			[enable_unaligned_access=no])
-			;;
-		aarch64*)
-			# On ARM64, Clang defines __ARM_FEATURE_UNALIGNED
-			# if and only if unaligned access is supported.
-			# However, GCC (at least up to 15.2.0) defines it
-			# even when using -mstrict-align, so autodetection
-			# with this macro doesn't work with GCC on ARM64.
-			# (It does work on 32-bit ARM.) See:
-			#
-			# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111555
-			#
-			# We need three checks:
-			#
-			# 1. If __ARM_FEATURE_UNALIGNED is defined and the
-			#    compiler isn't GCC, unaligned access is enabled.
-			#    If the compiler is MSVC, unaligned access is
-			#    enabled even without __ARM_FEATURE_UNALIGNED.
-			AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-				#if defined(__ARM_FEATURE_UNALIGNED) \
-					&& (!defined(__GNUC__) \
-						|| defined(__clang__))
-				#elif defined(_MSC_VER)
-				#else
-				compile error
-				#endif
-				int main(void) { return 0; }
-			])], [enable_unaligned_access=yes])
-
-			# 2. If __ARM_FEATURE_UNALIGNED is not defined,
-			#    unaligned access is disabled.
-			if test "x$enable_unaligned_access" = xauto ; then
-				AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-					#ifdef __ARM_FEATURE_UNALIGNED
-					compile error
-					#endif
-					int main(void) { return 0; }
-				])], [enable_unaligned_access=no])
-			fi
-
-			# 3. Use heuristics to detect if -mstrict-align is
-			#    in effect when building with GCC.
-			if test "x$enable_unaligned_access" = xauto ; then
-				[tuklib_integer_strict_align \
-						'[[:blank:]]ldrb[[:blank:]]']
-			fi
-			;;
-		loongarch*)
-			# See sections 7.4, 8.1, and 8.2:
-			# https://github.com/loongson/la-softdev-convention/blob/v0.2/la-softdev-convention.adoc
-			#
-			# That is, desktop and server processors likely support
-			# unaligned access in hardware but embedded processors
-			# might not. GCC defaults to -mno-strict-align and so
-			# do majority of GNU/Linux distributions. As of
-			# GCC 15.2, there is no predefined macro to detect
-			# if -mstrict-align or -mno-strict-align is in effect.
-			# Use heuristics based on compiler output.
-			[
-				tuklib_integer_strict_align \
-						'[[:blank:]]ld\.bu[[:blank:]]'
-			]
 			;;
 		*)
 			enable_unaligned_access=no

m4/tuklib_mbstr.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -18,14 +15,16 @@
 #   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])
 AC_FUNC_MBRTOWC
-AC_CHECK_FUNCS([wcwidth vasprintf])
+AC_CHECK_FUNCS([wcwidth])
 ])dnl

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])
@@ -65,11 +64,6 @@ compile error
 # Look for AIX-specific solution before sysconf(), because the test
 # for sysconf() will pass on AIX but won't actually work
 # (sysconf(_SC_PHYS_PAGES) compiles but always returns -1 on AIX).
-#
-# NOTE: There is no need to link the check program because it's not calling
-# any functions and thus implicit function declarations aren't a problem.
-# The unused reference to _system_configuration.physmem might get optimized
-# away, and thus the linker might not see that symbol anyway.
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/systemcfg.h>
 
@@ -81,7 +75,7 @@ main(void)
 }
 ]])], [tuklib_cv_physmem_method=aix], [
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <unistd.h>
 int
 main(void)
@@ -93,7 +87,7 @@ main(void)
 }
 ]])], [tuklib_cv_physmem_method=sysconf], [
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #ifdef HAVE_SYS_PARAM_H
 #	include <sys/param.h>
 #endif
@@ -109,7 +103,7 @@ main(void)
 }
 ]])], [tuklib_cv_physmem_method=sysctl], [
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/sysinfo.h>
 #include <machine/hal_sysinfo.h>
 
@@ -123,7 +117,7 @@ main(void)
 }
 ]])], [tuklib_cv_physmem_method=getsysinfo],[
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/param.h>
 #include <sys/pstat.h>
 
@@ -138,7 +132,7 @@ main(void)
 }
 ]])], [tuklib_cv_physmem_method=pstat_getstatic],[
 
-AC_LINK_IFELSE([AC_LANG_SOURCE([[
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <invent.h>
 int
 main(void)
@@ -155,7 +149,7 @@ main(void)
 # different sysinfo() so we must check $host_os.
 case $host_os in
 	linux*)
-		AC_LINK_IFELSE([AC_LANG_SOURCE([[
+		AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <sys/sysinfo.h>
 int
 main(void)

m4/tuklib_progname.m4

@@ -1,6 +1,3 @@
-# SPDX-License-Identifier: 0BSD
-
-#############################################################################
 #
 # SYNOPSIS
 #
@@ -14,11 +11,13 @@
 #   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])

m4/visibility.m4

@@ -1,8 +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 9
-dnl Copyright (C) 2005, 2008, 2010-2024 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.
@@ -34,18 +31,18 @@ AC_DEFUN([gl_VISIBILITY],
     dnl user has put into $CC $CFLAGS $CPPFLAGS.
     AC_CACHE_CHECK([whether the -Werror option is usable],
       [gl_cv_cc_vis_werror],
-      [gl_saved_CFLAGS="$CFLAGS"
+      [gl_save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS -Werror"
        AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM([[]], [[]])],
          [gl_cv_cc_vis_werror=yes],
          [gl_cv_cc_vis_werror=no])
-       CFLAGS="$gl_saved_CFLAGS"
+       CFLAGS="$gl_save_CFLAGS"
       ])
     dnl Now check whether visibility declarations are supported.
     AC_CACHE_CHECK([for simple visibility declarations],
       [gl_cv_cc_visibility],
-      [gl_saved_CFLAGS="$CFLAGS"
+      [gl_save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS -fvisibility=hidden"
        dnl We use the option -Werror and a function dummyfunc, because on some
        dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning
@@ -71,7 +68,7 @@ AC_DEFUN([gl_VISIBILITY],
             [[]])],
          [gl_cv_cc_visibility=yes],
          [gl_cv_cc_visibility=no])
-       CFLAGS="$gl_saved_CFLAGS"
+       CFLAGS="$gl_save_CFLAGS"
       ])
     if test $gl_cv_cc_visibility = yes; then
       CFLAG_VISIBILITY="-fvisibility=hidden"

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/.gitignore

@@ -5,7 +5,6 @@ Rules-quot
 boldquot.sed
 en@boldquot.header
 en@quot.header
-insert-header.sed
 insert-header.sin
 quot.sed
 remove-potcdate.sin

po/LINGUAS

@@ -9,9 +9,7 @@ fr
 hr
 hu
 it
-ka
 ko
-nl
 pl
 pt
 pt_BR

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 = --add-location=file --no-wrap --keyword=_ --keyword=N_ '--keyword=W_:1,"This is word wrapped at spaces. The Unicode character U+00A0 works as a non-breaking space. Tab (\t) is interpret as a zero-width space (the tab itself is not displayed); U+200B is NOT supported. Manual word wrapping with \n is supported but requires care."'
+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 = --add-location=file --no-wrap --keyword=_ --keyword=N_ '--key
 # or entity, or to disclaim their copyright.  The empty string stands for
 # the public domain; in this case the translators are expected to disclaim
 # their copyright.
-COPYRIGHT_HOLDER = The XZ Utils authors and contributors
+COPYRIGHT_HOLDER =
-
-# This tells whether or not to prepend "GNU " prefix to the package
-# name that gets inserted into the header of the $(DOMAIN).pot file.
-# Possible values are "yes", "no", or empty.  If it is empty, try to
-# detect it automatically by scanning the files in $(top_srcdir) for
-# "GNU packagename" string.
-PACKAGE_GNU = no
 
 # This is the email address or URL to which the translators shall report
 # bugs in the untranslated strings:
@@ -53,39 +40,7 @@ MSGID_BUGS_ADDRESS =
 # message catalogs shall be used.  It is usually empty.
 EXTRA_LOCALE_CATEGORIES =
 
-# This tells whether the $(DOMAIN).pot file contains messages with an 'msgctxt'
+# Although you may need slightly wider terminal than 80 chars, it is
-# context.  Possible values are "yes" and "no".  Set this to yes if the
+# much nicer to edit the output of --help when this is set.
-# package uses functions taking also a message context, like pgettext(), or
+XGETTEXT_OPTIONS += --no-wrap
-# if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
+MSGMERGE += --no-wrap
-USE_MSGCTXT = no
-
-# These options get passed to msgmerge.
-# Useful options are in particular:
-#   --previous            to keep previous msgids of translated messages,
-#   --quiet               to reduce the verbosity.
-MSGMERGE_OPTIONS = --add-location=file --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.
-#
-# NOTE: The the custom "mydist" target in ../Makefile.am updates xz.pot.
-# An updated xz.pot will cause the .po files to be updated too but
-# only when updating would change more than the POT-Creation-Date line.
-DIST_DEPENDS_ON_UPDATE_PO = no

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
@@ -8,12 +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/sandbox.c
 src/xz/signals.c
 src/xz/suffix.c
 src/xz/util.c
-src/lzmainfo/lzmainfo.c
 src/common/tuklib_exit.c
-src/liblzma/common/string_conversion.c