.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,THANKS
+skip = *.po,*.pot,./po4a/man,./doc/api,./configure,./autom4te.cache,./m4/libtool.m4,./build-aux/depcomp,./build-aux/ltmain.sh,./build-aux/config.guess,./build-aux/config.rpath,./m4/po.m4,./build-aux/config.sub
 
 # Ignore false positive matching words. Ideally codespell would allow
 # ignoring words for specific files, but that does not appear to be
@@ -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

@@ -18,8 +18,6 @@ on:
   # Allows running workflow manually
   workflow_dispatch:
 
-permissions: {}
-
 jobs:
   POSIX:
     strategy:
@@ -28,7 +26,7 @@ jobs:
         build_system: [autotools, cmake]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 #v4.1.0
 
       ########################
       # Install Dependencies #
@@ -39,7 +37,7 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
         run: |
             sudo apt-get update
-            sudo apt-get install -y autoconf automake build-essential po4a autopoint gcc-multilib doxygen musl-tools valgrind
+            sudo apt-get install -y autoconf automake build-essential po4a autopoint gcc-multilib doxygen musl-tools
 
       # Install Autotools on Mac
       - name: Install Dependencies
@@ -51,12 +49,12 @@ jobs:
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'cmake' }}
         run: |
             sudo apt-get update
-            sudo apt-get install -y build-essential cmake gettext 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
+        run: brew install cmake
 
       ##################
       # Build and Test #
@@ -72,93 +70,90 @@ 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: ${{ 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: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
         run: |
-            export UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=1
-            ./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: ${{ matrix.os == 'ubuntu-latest' && matrix.build_system == 'autotools' }}
-        run: ./build-aux/ci_build.bash -b autotools -p build -d sandbox
-      - name: Test with Valgrind
-        if: ${{ matrix.os == 'ubuntu-latest' && 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-by-arg=ls,cp,sed,grep,bash,sh --exit-on-first-error=yes --error-exitcode=1"
+            ./build-aux/ci_build.sh -b autotools -p test -f "-fsanitize=address,undefined" -d ifunc,sandbox
             cd ../xz_build && make distclean
 
+      # musl libc has some slight differences compared to glibc, including
+      # the lack of ifunc support. This tests if the ifunc detection
+      # functions properly since musl-gcc can compile with ifunc support,
+      # but will fail at runtime.
       - name: Build with musl libc
         if: ${{ matrix.os == 'ubuntu-latest'}}
-        run: ./build-aux/ci_build.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: ${{ 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: ${{ 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

@@ -1,54 +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
-
-    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/dragonflybsd.yml

@@ -1,39 +0,0 @@
-# SPDX-License-Identifier: 0BSD
-
-name: DragonflyBSD
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-permissions: {}
-
-jobs:
-  DragonflyBSD:
-    runs-on: ubuntu-latest
-    name: DragonflyBSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in DragonflyBSD
-        id: test
-        uses: vmactions/dragonflybsd-vm@e3c420e8a2362c2496fca6e76a291abd46f5d8e7 #v1.1.0
-        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

@@ -1,55 +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
-          # - host: ubuntu-24.04-arm
-          #   version: 15.0
-          #   arch: aarch64
-
-    runs-on: ${{ matrix.host }}
-
-    name: FreeBSD
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in FreeBSD
-        uses: vmactions/freebsd-vm@c3ae29a132c8ef1924775414107a97cac042aad5 #v1.2.0
-        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

@@ -1,91 +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-2019, windows-latest ]
-
-    runs-on: ${{ matrix.os }}
-
-    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

.github/workflows/netbsd.yml

@@ -1,39 +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
-    name: NetBSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in NetBSD
-        id: test
-        uses: vmactions/netbsd-vm@46a58bbf03682b4cb24142b97fa315ae52bed573 #v1.1.8
-        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='-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

@@ -1,39 +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
-    name: OpenBSD
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in OpenBSD
-        uses: vmactions/openbsd-vm@284abc8fb4cd88f69946a0d4c27c4eecd82fdde9 #v1.1.7
-        with:
-          usesh: true
-          prepare: >
-            /usr/sbin/pkg_add -I -v
-            autoconf-2.72p0
-            automake-1.16.5
-            gettext-tools
-            libtool
-            m4
-          run: |
-            set -e
-            export AUTOCONF_VERSION=2.72
-            export AUTOMAKE_VERSION=1.16
-            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

@@ -1,33 +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
-    name: Solaris
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Test in Solaris
-        uses: vmactions/solaris-vm@cc8f82fa1a7cc746153ec3f71bf11f311f16e225 #v1.1.1
-        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

@@ -39,7 +39,7 @@ jobs:
 
       # Rely on the msys2 GitHub Action to set up the msys2 environment.
       - name: Setup MSYS2
-        uses: msys2/setup-msys2@cc11e9188b693c2b100158c3322424c4cc1dadea #v2.22.0
+        uses: msys2/setup-msys2@27b3aa77f672cb6b3054121cfd80c3d22ceebb1d #v2.20.1
         with:
           msystem: ${{ matrix.msys2_env }}
           update: true
@@ -55,7 +55,7 @@ jobs:
         # text file and will not match the output from xzgrep.
         run: git config --global core.autocrlf false
 
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 #v4.1.0
 
 
       ########################
@@ -87,29 +87,29 @@ jobs:
       ##################
 
       - name: Build with full features
-        run: ./build-aux/ci_build.bash -a "--no-po4a" -b ${{ matrix.build_system }} -p build
+        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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -p test -n 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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d threads,shared -p build
+        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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d threads,shared -p test -n no_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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d encoders,shared -p build
+        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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d encoders,shared -p test -n no_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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d decoders,shared -p build
+        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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -d decoders,shared -p test -n no_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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -c crc32 -d shared,nls -p build
+        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.bash -a "--no-po4a" -b ${{ matrix.build_system }} -c crc32 -d shared,nls -p test -n crc32_only
+        run: ./build-aux/ci_build.sh -a "--no-po4a" -b ${{ matrix.build_system }} -c crc32 -d shared,nls -p test -n crc32_only
 
 
       ###############
@@ -117,7 +117,7 @@ jobs:
       ###############
 
       # Upload the test logs as artifacts if any step has failed.
-      - uses: actions/upload-artifact@v4.3.3
+      - uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 #v4.0.0
         if: ${{ failure() }}
         with:
           name: ${{ matrix.msys2_env }} ${{ matrix.build_system }} Test Logs

.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

@@ -2,8 +2,8 @@
 Authors of XZ Utils
 ===================
 
-    XZ Utils is developed and maintained by
-    Lasse Collin <lasse.collin@tukaani.org>.
+    XZ Utils is developed and maintained by Lasse Collin
+    <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
@@ -24,17 +24,12 @@ Authors of XZ Utils
     by Michał Górny.
 
     Architecture-specific CRC optimizations were contributed by
-    Ilya Kurdyukov, Chenxi Mao, and Xi Ruoyao.
+    Ilya Kurdyukov, Hans Jansen, and Chenxi Mao.
 
     Other authors:
       - Jonathan Nieder
       - Joachim Henke
 
-    Special author: Jia Tan was a co-maintainer in 2022-2024. He and
-    the team behind him inserted a backdoor (CVE-2024-3094) into
-    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.
     Most of these people are mentioned in the file THANKS.
 

COPYING

@@ -3,7 +3,8 @@ 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).
 
@@ -24,6 +25,20 @@ XZ Utils Licensing
         lzma-file-format.xt are in the public domain but may
         be distributed under the terms of 0BSD too.
 
+      - Doxygen-generated HTML version of the liblzma API documentation:
+        While Doxygen is under the GNU GPLv2, the license information
+        in Doxygen includes the following exception:
+
+            Documents produced by doxygen are derivative works
+            derived from the input used in their production;
+            they are not affected by this license.
+
+        Note: The JavaScript files (under the MIT license) have
+        been removed from the Doxygen output.
+
+      - The XZ logo (xz-logo.png) included in the Doxygen-generated
+        documentation is under the Creative Commons BY-SA 4.0 license.
+
       - Translated messages and man pages are under 0BSD except that
         some old translations are in the public domain.
 
@@ -36,15 +51,8 @@ XZ Utils Licensing
         These files don't affect the licensing of the binaries being
         built.
 
-      - The 'extra' directory contains files that are under various
-        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
-    information. It works on xz.git and on a clean file tree extracted
-    from a release tarball.
-
-        sh build-aux/license-check.sh -v
+      - The extra directory contain files that are under various
+        free software licenses.
 
     For the files under the BSD Zero Clause License (0BSD), if
     a copyright notice is needed, the following is sufficient:
@@ -57,13 +65,35 @@ XZ Utils Licensing
     it is not legally required by the license terms. Here is an example
     of a good notice to put into "about box" or into documentation:
 
-        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
+
+    A note about old XZ Utils releases:
+
+        XZ Utils releases 5.4.6 and older and 5.5.1alpha have a
+        significant amount of code put into the public domain and
+        that obviously remains so. The switch from public domain to
+        0BSD for newer releases was made in Febrary 2024 because
+        public domain has (real or perceived) legal ambiguities in
+        some jurisdictions.
+
+        There is very little *practical* difference between public
+        domain and 0BSD. The main difference likely is that one
+        shouldn't claim that 0BSD-licensed code is in the public
+        domain; 0BSD-licensed code is copyrighted but available under
+        an extremely permissive license. Neither 0BSD nor public domain
+        require retaining or reproducing author, copyright holder, or
+        license notices when distributing the software. (Compare to,
+        for example, BSD 2-Clause "Simplified" License which does have
+        such requirements.)
 
     If you have questions, don't hesitate to ask for more information.
     The contact information is in the README file.

COPYING.CC-BY-SA-4.0

@@ -0,0 +1,427 @@
+Attribution-ShareAlike 4.0 International
+
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+
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+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the
+public licenses.
+
+Creative Commons may be contacted at creativecommons.org.

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
-    pthreads. The option --disable-threads must be passed to configure
-    as this isn't autodetected.
+    MINIX 3.1.8 and older have bugs in /usr/include/stdint.h, which has
+    to be patched before XZ Utils can be compiled correctly. See
+    <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
-    as skipped ("SKIP"). It's only due to a few threading-dependent
-    subtests are skipped. See the matching tests/test_*.log files.
+    MINIX 3.2.0 and later use a different libc and aren't affected by
+    the above bug.
+
+    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
@@ -218,53 +219,19 @@ 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 LIST of filter encoders to build. In the
-                configure option the list is comma separated.
-                CMake lists are semicolon separated.
-
-                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.
+                Specify a comma-separated LIST of filter encoders to
+                build. See "./configure --help" for exact list of
+                available filter encoders. 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 +243,10 @@ 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 +263,9 @@ 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
-                types are "crc32", "crc64", and "sha256". By default
-                all supported check types are enabled.
+                mandatory, and cannot be omitted. See "./configure --help"
+                for exact list of available integrity check types.
 
                 liblzma and the command line tools can decompress files
                 which use unsupported integrity check type, but naturally
@@ -313,7 +276,6 @@ 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 +312,6 @@ 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 +319,6 @@ 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 +327,6 @@ 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.
 
@@ -381,40 +336,23 @@ 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
                 This disables CRC32 and CRC64 assembly code on
                 32-bit x86. This option currently does nothing
                 on other architectures (not even on x86-64).
@@ -427,16 +365,7 @@ XZ Utils Installation
                 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 of carryless multiplication for CRC
                 calculation even if compiler support for it is detected.
                 The code uses runtime detection of SSSE3, SSE4.1, and
@@ -449,7 +378,6 @@ XZ Utils Installation
                 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.
@@ -459,16 +387,7 @@ XZ Utils Installation
                 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 +435,6 @@ 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 +451,6 @@ 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 +467,6 @@ 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 +483,6 @@ 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 +518,15 @@ 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 +561,23 @@ XZ Utils Installation
                                 sandboxing. If no Landlock support
                                 is found, configure will give an error.
 
-    --enable-symbol-versions[=VARIANT]
-    XZ_SYMBOL_VERSIONING=VARIANT
-                Use symbol versioning for liblzma shared library.
-                This is enabled by default on GNU/Linux (glibc only),
-                other GNU-based systems, and FreeBSD.
-
-                Symbol versioning is never used for static liblzma. This
-                option is ignored when not building a shared library.
-
-                Supported VARIANTs:
-
-                        no      Disable symbol versioning. This is the
-                                same as using --disable-symbol-versions.
-
-                        auto    Autodetect between "no", "linux",
-                                and "generic".
-
-                        yes     Autodetect between "linux" and
-                                "generic". This forces symbol
-                                versioning to be used when
-                                building a shared library.
-
-                        generic Generic version is the default for
-                                FreeBSD and GNU/Linux on MicroBlaze.
-
-                                This is also used on GNU/Linux when
-                                building with NVIDIA HPC Compiler
-                                because the compiler doesn't support
-                                the features required for the "linux"
-                                variant below.
-
-                        linux   Special version for GNU/Linux (glibc
-                                only). This adds a few extra symbol
-                                versions for compatibility with binaries
-                                that have been linked against a liblzma
-                                version that has been patched with
-                                "xz-5.2.2-compat-libs.patch" from
-                                RHEL/CentOS 7. That patch was used
-                                by some build tools outside of
-                                RHEL/CentOS 7 too.
+    --enable-symbol-versions
+                Use symbol versioning for liblzma. This is enabled by
+                default on GNU/Linux, other GNU-based systems, and
+                FreeBSD.
 
     --enable-debug
                 This enables the assert() macro and possibly some other
                 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 +594,6 @@ 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 +762,7 @@ 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

@@ -36,6 +36,18 @@ dist_examples_DATA = \
 	doc/examples/04_compress_easy_mt.c \
 	doc/examples/11_file_info.c \
 	doc/examples/Makefile
+
+# Install the Doxygen generated documentation if they were built.
+install-data-local:
+	if test -d "$(srcdir)/doc/api" ; then \
+		$(MKDIR_P) "$(DESTDIR)$(docdir)/api" && \
+		$(INSTALL_DATA) "$(srcdir)"/doc/api/* \
+			"$(DESTDIR)$(docdir)/api"; \
+	fi
+
+# Remove the Doxygen generated documentation when uninstalling.
+uninstall-local:
+	rm -rf "$(DESTDIR)$(docdir)/api"
 endif
 
 EXTRA_DIST = \
@@ -46,6 +58,7 @@ EXTRA_DIST = \
 	po4a \
 	windows \
 	CMakeLists.txt \
+	COPYING.CC-BY-SA-4.0 \
 	COPYING.GPLv2 \
 	COPYING.GPLv3 \
 	COPYING.LGPLv2.1 \
@@ -53,15 +66,14 @@ EXTRA_DIST = \
 	PACKAGERS \
 	TODO \
 	autogen.sh \
-	build-aux/license-check.sh \
 	build-aux/manconv.sh \
 	build-aux/version.sh \
+	doc/xz-logo.png \
 	po/xz.pot-header
 
 ACLOCAL_AMFLAGS = -I m4
 
-# List of man pages to convert to plain text in the dist-hook target
-# or to PDF in the pdf-local target.
+# List of man pages to convert to PDF and plain text in the dist-hook target.
 manfiles = \
 	src/xz/xz.1 \
 	src/xzdec/xzdec.1 \
@@ -71,53 +83,47 @@ manfiles = \
 	src/scripts/xzless.1 \
 	src/scripts/xzmore.1
 
-# Create ChangeLog using "git log".
-# Convert the man pages to plain text (ASCII only) format.
+# Create ChangeLog from output of "git log --date=iso --stat".
+# 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 "$(srcdir)" && git log --date=iso --stat \
 			b69da6d4bb6bb11fc0cf066920791990d2b22a06^..HEAD ) \
 			> "$(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"
-	cd po && $(MAKE) xz.pot-update
-	cd "$(srcdir)/po4a" && $(SHELL) update-po
+	sh "$(srcdir)/src/liblzma/validate_map.sh"
+	cd "$(srcdir)/po4a" && sh update-po
+	cd "$(srcdir)/doxygen" && sh update-doxygen
 	VERSION=$(VERSION); \
 	if test -d "$(srcdir)/.git" && type git > /dev/null 2>&1; then \
-		$(SHELL) "$(srcdir)/build-aux/license-check.sh" || exit 1; \
-		SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=8 | cut -b2-`; \
+		SNAPSHOT=`cd "$(srcdir)" && git describe --abbrev=4 | cut -b2-`; \
 		test -n "$$SNAPSHOT" && VERSION=$$SNAPSHOT; \
 	fi; \
-	TAR_OPTIONS='--owner=0 --group=0 --numeric-owner --mode=u+rw,go+r-w --sort=name' \
-		LC_COLLATE=C \
+	TAR_OPTIONS='--owner=0 --group=0 --numeric-owner --mode=u+rw,go+r-w' \
 		$(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

NEWS

@@ -2,576 +2,8 @@
 XZ Utils Release Notes
 ======================
 
-5.8.1 (2025-04-03)
-
-    IMPORTANT: This includes a security fix for CVE-2025-31115 which
-    affects XZ Utils from 5.3.3alpha to 5.8.0. No new 5.4.x or 5.6.x
-    releases will be made, but the fix is in the v5.4 and v5.6 branches
-    in the xz Git repository. A standalone patch for all affected
-    versions is available as well.
-
-    * Multithreaded .xz decoder (lzma_stream_decoder_mt()):
-
-        - Fix a bug that could at least result in a crash with
-          invalid input. (CVE-2025-31115)
-
-        - Fix a performance bug: Only one thread was used if the whole
-          input file was provided at once to lzma_code(), the output
-          buffer was big enough, timeout was disabled, and LZMA_FINISH
-          was used. There are no bug reports about this, thus it's
-          possible that no real-world application was affected.
-
-    * Avoid <stdalign.h> even with C11/C17 compilers. This fixes the
-      build with Oracle Developer Studio 12.6 on Solaris 10 when the
-      compiler is in C11 mode (the header doesn't exist).
-
-    * Autotools: Restore compatibility with GNU make versions older
-      than 4.0 by creating the package using GNU gettext 0.23.1
-      infrastructure instead of 0.24.
-
-    * Update Croatian translation.
-
-
-5.8.0 (2025-03-25)
-
-    This bumps the minor version of liblzma because new features were
-    added. The API and ABI are still backward compatible with liblzma
-    5.6.x, 5.4.x, 5.2.x, and 5.0.x.
-
-    * liblzma on 32/64-bit x86: When possible, use SSE2 intrinsics
-      instead of memcpy() in the LZMA/LZMA2 decoder. In typical cases,
-      this may reduce decompression time by 0-5 %. However, when built
-      against musl libc, over 15 % time reduction was observed with
-      highly compressed files.
-
-    * CMake: Make the feature test macros match the Autotools-based
-      build on NetBSD, Darwin, and mingw-w64.
-
-    * Update the Croatian, Italian, Portuguese, and Romanian
-      translations.
-
-    * Update the German, Italian, Korean, Romanian, Serbian, and
-      Ukrainian man page translations.
-
-    Summary of changes in the 5.7.x development releases:
-
-    * Mark the following LZMA Utils script aliases as deprecated:
-      lzcmp, lzdiff, lzless, lzmore, lzgrep, lzegrep, and lzfgrep.
-
-    * liblzma:
-
-        - Improve LZMA/LZMA2 encoder speed on 64-bit PowerPC (both
-          endiannesses) and those 64-bit RISC-V processors that
-          support fast unaligned access.
-
-        - Add low-level APIs for RISC-V, ARM64, and x86 BCJ filters
-          to lzma/bcj.h. These are primarily for erofs-utils.
-
-        - x86/x86-64/E2K CLMUL CRC code was rewritten.
-
-        - Use the CRC32 instructions on LoongArch.
-
-    * xz:
-
-        - Synchronize the output file and its directory using fsync()
-          before deleting the input file. No syncing is done when xz
-          isn't going to delete the input file.
-
-        - Add --no-sync to disable the sync-before-delete behavior.
-
-        - Make --single-stream imply --keep.
-
-    * xz, xzdec, lzmainfo: When printing messages, replace
-      non-printable characters with question marks.
-
-    * xz and xzdec on Linux: Support Landlock ABI versions 5 and 6.
-
-    * CMake: Revise the configuration variables and some of their
-      options, and document them in the file INSTALL. CMake support
-      is no longer experimental. (It was already not experimental
-      when building for native Windows.)
-
-    * Add build-aux/license-check.sh.
-
-
-5.7.2beta (2025-03-08)
-
-    * On the man pages, mark the following LZMA Utils script aliases as
-      deprecated: lzcmp, lzdiff, lzless, lzmore, lzgrep, lzegrep, and
-      lzfgrep. The commands that start with xz* instead of lz* have
-      identical behavior.
-
-      The LZMA Utils aliases lzma, unlzma, and lzcat aren't deprecated
-      because some of these aliases are still in common use. lzmadec
-      and lzmainfo aren't deprecated either.
-
-    * xz: In the ENVIRONMENT section of the man page, warn about
-      problems that some uses of XZ_DEFAULTS and XZ_OPT may create.
-
-    * Windows (native builds, not Cygwin): In xz, xzdec, and lzmadec,
-      avoid an error message on broken pipe.
-
-    * Autotools: Fix out-of-tree builds when using the bundled
-      getopt_long.
-
-    * Translations:
-
-        - Updated: Chinese (traditional), Croatian, Finnish, Georgian,
-          German, Korean, Polish, Romanian, Serbian, Spanish, Swedish,
-          Turkish, and Ukrainian
-
-        - Added: Dutch
-
-    * Man page translations:
-
-        - Updated: German, Korean, Romanian, and Ukrainian
-
-        - Added: Italian and Serbian
-
-
-5.7.1alpha (2025-01-23)
-
-    * All fixes from 5.6.4.
-
-    * liblzma:
-
-        - Improve LZMA/LZMA2 encoder speed on 64-bit PowerPC (both
-          endiannesses) and those 64-bit RISC-V processors that
-          support fast unaligned access.
-
-        - x86/x86-64/E2K CLMUL CRC code was rewritten. It's faster and
-          doesn't cause false positives from sanitizers. Attributes
-          like __attribute__((__no_sanitize_address__)) are no longer
-          present.
-
-        - On 32-bit x86, CLMUL CRC and the old (but still good)
-          assembly versions now co-exist with runtime detection.
-          Both Autotools and CMake build systems handle this
-          automatically now.
-
-        - Use the CRC32 instructions on LoongArch to make CRC32
-          calculation faster.
-
-        - Add low-level APIs for RISC-V, ARM64, and x86 BCJ filters
-          to lzma/bcj.h. These are primarily for erofs-utils.
-
-        - Minor tweaks to ARM64 CRC32 code and BCJ filters were made.
-
-    * xz:
-
-        - Synchronize the output file and its directory before deleting
-          the input file using fsync(). This reduces the probability of
-          data loss after a system crash. However, it can be a major
-          performance hit if processing many small files.
-
-          NOTE: No syncing is done when xz isn't going to delete
-          the input file.
-
-        - Add a new option --no-sync to disable the sync-before-delete
-          behavior. It's useful when compressing many small files and
-          one doesn't worry about data loss in case of a system crash.
-
-        - Make --single-stream imply --keep.
-
-        - Use automatic word wrapping for the text in --help and
-          similar situations to hopefully make the strings easier for
-          majority of translators (no need to count spaces anymore).
-
-    * xz, xzdec, lzmainfo: When printing messages, replace
-      non-printable characters with question marks. This way
-      malicious filenames cannot be used to send escape sequences
-      to a terminal. This change is also applied to filenames shown
-      in "xz --robot --list".
-
-    * xz and xzdec on Linux: Add support for Landlock ABI versions 5
-      and 6.
-
-    * CMake updates:
-
-        - Increase the minimum required CMake version to 3.20.
-
-        - Revise the configuration variables and some of their options.
-          Document them in the file INSTALL.
-
-        - Attempt to produce liblzma.pc so that the paths are based on
-          ${prefix}, which makes it simpler to override the paths
-          if the liblzma files have been moved.
-
-        - To enable translations, gettext-tools is now required. The
-          CMake build no longer supports installing pre-compiled
-          message catalog binary files (po/*.gmo).
-
-        - Apple: Use Mach-O shared library versioning that is
-          compatible with GNU Libtool. This should make it easier to
-          switch between the build systems on Apple OSes that enforce
-          the correct compatibility_version (macOS >= 12 doesn't?).
-          This change is backward compatible: binaries linked against
-          old CMake-built liblzma will run with liblzma that uses
-          Libtool style versioning.
-
-        - Windows (not Cygwin): Document CMAKE_DLL_NAME_WITH_SOVERSION
-          (CMake >= 3.27) in the file INSTALL. 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.
-
-        - CMake support is no longer experimental. (It was already
-          not experimental when building for native Windows.)
-
-    * Windows: Building liblzma with Visual Studio 2013 is no longer
-      supported. Visual Studio 2015 or later (with CMake) can be used
-      to build liblzma and the command line tools.
-
-    * Add preliminary Georgian translation. This already contains
-      translations of most of the strings that are now automatically
-      word wrapped.
-
-    * Add build-aux/license-check.sh. Without arguments, it checks that
-      no license information has been forgotten. With the -v argument,
-      it shows the license info (or the lack of it) for each file.
-
-      If the .git directory is available, only the files in the
-      repository are checked. Without the .git directory, a clean tree
-      from an extracted release tarball is expected.
-
-
-5.6.4 (2025-01-23)
-
-    * liblzma: Fix LZMA/LZMA2 encoder on big endian ARM64.
-
-    * xz:
-
-        - Fix --filters= and --filters1= ... --filters9= options
-          parsing. They require an argument, thus "xz --filters lzma2"
-          should work in addition to "xz --filters=lzma2".
-
-        - On the man page, note in the --compress and --decompress
-          options that the default behavior is to delete the input
-          file unless writing to standard output. It was already
-          documented in the DESCRIPTION section but new users in
-          a hurry might miss it.
-
-    * Windows (native builds, not Cygwin): Fix regressions introduced
-      in XZ Utils 5.6.3 which caused non-ASCII characters to display
-      incorrectly. Only builds with translation support were affected
-      (--enable-nls or ENABLE_NLS=ON). The following changes affect
-      builds that have translations enabled:
-
-        - Require UCRT because MSVCRT doesn't support UTF-8
-          locales and thus translations won't be readable on
-          Windows 10 version 1903 and later. (MSVCRT builds
-          are still possible with --disable-nls or ENABLE_NLS=OFF.)
-
-        - Require gettext-runtime >= 0.23.1 because older versions
-          don't autodetect the use of the UTF-8 code page. This
-          resulted in garbled non-ASCII characters even with UCRT.
-
-        - Partially fix alignment issues in xz --verbose --list
-          with translated messages. Chinese (simplified),
-          Chinese (traditional), and Korean column headings
-          are misaligned still because Windows and MinGW-w64
-          don't provide wcwidth() and XZ Utils doesn't include
-          a replacement function either.
-
-    * CMake: Explicitly disable unity builds. This prevents build
-      failures when another project uses XZ Utils via CMake's
-      FetchContent module, and that project enables unity builds.
-
-    * Update Chinese (traditional) and Serbian translations.
-
-
-5.6.3 (2024-10-01)
-
-    IMPORTANT: This includes a Windows-specific security fix to
-    the command line tools (CVE-2024-47611). liblzma isn't affected
-    by this issue.
-
-    * liblzma:
-
-        - Fix x86-64 inline assembly compatibility with GNU Binutils
-          older than 2.27.
-
-        - Fix the build with GCC 4.2 on OpenBSD/sparc64.
-
-    * xzdec: Display an error instead of failing silently if the
-      unsupported option -M is specified.
-
-    * lzmainfo: Fix integer overflows when rounding the dictionary and
-      uncompressed sizes to the nearest mebibyte.
-
-    * Windows (except Cygwin and MSYS2): Add an application manifest to
-      xz, xzdec, lzmadec, and lzmainfo executables:
-
-        - Declare them compatible with Vista/7/8/8.1/10/11. This way
-          the programs won't needlessly use Operating System Context
-          of Vista when running on later Windows versions. This setting
-          doesn't mean that the executables cannot run on even older
-          versions if otherwise built that way.
-
-        - Declare them as UAC-compliant. MSVC added this by default
-          already but it wasn't done with MinGW-w64, at least not
-          with all toolchain variants.
-
-        - Declare them long path aware. This makes long path names
-          work on Windows 10 and 11 if the feature has been enabled
-          in the Windows registry.
-
-        - Use the UTF-8 code page on Windows 10 version 1903 and later.
-
-            * Now command line tools can access files whose names
-              contain characters that don't exist in the current
-              legacy code page.
-
-            * The options --files and --files0 now expect file lists
-              to be in UTF-8 instead of the legacy code page.
-
-            * This fixes a security issue: If a command line contains
-              Unicode characters (for example, filenames) that don't
-              exist in the current legacy code page, the characters are
-              converted to similar-looking characters with best-fit
-              mapping. Some best-fit mappings result in ASCII
-              characters that change the meaning of the command line,
-              which can be exploited with malicious filenames to do
-              argument injection or directory traversal attacks.
-              UTF-8 avoids best-fit mappings and thus fixes the issue.
-              (CVE-2024-47611)
-
-              Forcing the process code page to UTF-8 is possible only
-              on Windows 10 version 1903 and later. The command line
-              tools remain vulnerable if used on an old older
-              version of Windows.
-
-              This issue was discovered by Orange Tsai and splitline
-              from DEVCORE Research Team.
-
-              A related smaller issue remains: Windows filenames may
-              contain unpaired surrogates (invalid UTF-16). These are
-              converted to the replacement character U+FFFD in the
-              UTF-8 code page. Thus, filenames with different unpaired
-              surrogates appear identical and aren't distinguishable
-              from filenames that contain the actual replacement
-              character U+FFFD.
-
-            * When building with MinGW-w64, it is recommended to use
-              UCRT version instead of the old MSVCRT. For example,
-              non-ASCII characters from filenames won't print
-              correctly in messages to console with MSVCRT with
-              the UTF-8 code page (a cosmetic issue). liblzma-only
-              builds are still fine with MSVCRT.
-
-        - Cygwin and MSYS2 process command line options differently and
-          the above issues don't exist. There is no need to replace the
-          default application manifest on Cygwin and MSYS2.
-
-    * Autotools-based build:
-
-        - Fix feature checks with link-time optimization (-flto).
-
-        - Solaris: Fix a compatibility issue in version.sh. It matters
-          if one wants to regenerate configure by running autoconf.
-
-    * CMake:
-
-        - Use paths relative to ${prefix} in liblzma.pc when possible.
-          This is done only with CMake >= 3.20.
-
-        - MSVC: Install liblzma.pc as it can be useful with MSVC too.
-
-        - Windows: Fix liblzma filename prefix, for example:
-
-            * Cygwin: The DLL was incorrectly named liblzma-5.dll.
-              Now it is cyglzma-5.dll.
-
-            * MSVC: Rename import library from liblzma.lib to lzma.lib
-              while keeping liblzma.dll name as is. This helps with
-              "pkgconf --msvc-syntax --libs liblzma" because it mungles
-              "-llzma" in liblzma.pc to "lzma.lib".
-
-            * MinGW-w64: No changes.
-
-        - Windows: Use the correct resource file for lzmadec.exe.
-          Previously the resource file for xzdec.exe was used for both.
-          Autotools-based build isn't affected.
-
-        - Prefer a C11 compiler over a C99 compiler but accept both.
-
-        - Link Threads::Threads against liblzma using PRIVATE so that
-          -pthread and such flags won't unnecessarily get included in
-          the usage requirements of shared liblzma. That is,
-          target_link_libraries(foo PRIVATE liblzma::liblzma) no
-          longer adds -pthread if using POSIX threads and linking
-          against shared liblzma. The threading flags are still added
-          if linking against static liblzma.
-
-    * Updated translations: Catalan, Chinese (simplified), and
-      Brazilian Portuguese.
-
-
-5.6.2 (2024-05-29)
-
-    * Remove the backdoor (CVE-2024-3094).
-
-    * Not changed: Memory sanitizer (MSAN) has a false positive
-      in the CRC CLMUL code which also makes OSS Fuzz unhappy.
-      Valgrind is smarter and doesn't complain.
-
-      A revision to the CLMUL code is coming anyway and this issue
-      will be cleaned up as part of it. It won't be backported to
-      5.6.x or 5.4.x because the old code isn't wrong. There is
-      no reason to risk introducing regressions in old branches
-      just to silence a false positive.
-
-    * liblzma:
-
-        - lzma_index_decoder() and lzma_index_buffer_decode(): Fix
-          a missing output pointer initialization (*i = NULL) if the
-          functions are called with invalid arguments. The API docs
-          say that such an initialization is always done. In practice
-          this matters very little because the problem can only occur
-          if the calling application has a bug and these functions
-          return LZMA_PROG_ERROR.
-
-        - lzma_str_to_filters(): Fix a missing output pointer
-          initialization (*error_pos = 0). This is very similar
-          to the fix above.
-
-        - Fix C standard conformance with function pointer types.
-
-        - Remove GNU indirect function (IFUNC) support. This is *NOT*
-          done for security reasons even though the backdoor relied on
-          this code. The performance benefits of IFUNC are too tiny in
-          this project to make the extra complexity worth it.
-
-        - FreeBSD on ARM64: Add error checking to CRC32 instruction
-          support detection.
-
-        - Fix building with NVIDIA HPC SDK.
-
-    * xz:
-
-        - Fix a C standard conformance issue in --block-list parsing
-          (arithmetic on a null pointer).
-
-        - Fix a warning from GNU groff when processing the man page:
-          "warning: cannot select font 'CW'"
-
-    * xzdec: Add support for Linux Landlock ABI version 4. xz already
-      had the v3-to-v4 change but it had been forgotten from xzdec.
-
-    * Autotools-based build system (configure):
-
-        - Symbol versioning variant can now be overridden with
-          --enable-symbol-versions. Documentation in INSTALL was
-          updated to match.
-
-        - Add new configure option --enable-doxygen to enable
-          generation and installation of the liblzma API documentation
-          using Doxygen. Documentation in INSTALL and PACKAGERS was
-          updated to match.
-
-    CMake:
-
-        - Fix detection of Linux Landlock support. The detection code
-          in CMakeLists.txt had been sabotaged.
-
-        - Disable symbol versioning on non-glibc Linux to match what
-          the Autotools build does. For example, symbol versioning
-          isn't enabled with musl.
-
-        - Symbol versioning variant can now be overridden by setting
-          SYMBOL_VERSIONING to "OFF", "generic", or "linux".
-
-        - Add support for all tests in typical build configurations.
-          Now the only difference to the tests coverage to Autotools
-          is that CMake-based build will skip more tests if features
-          are disabled. Such builds are only for special cases like
-          embedded systems.
-
-        - Separate the CMake code for the tests into tests/tests.cmake.
-          It is used conditionally, thus it is possible to
-
-              rm -rf tests
-
-          and the CMake-based build will still work normally except
-          that no tests are then available.
-
-        - Add a option ENABLE_DOXYGEN to enable generation and
-          installation of the liblzma API documentation using Doxygen.
-
-    * Documentation:
-
-        - Omit the Doxygen-generated liblzma API documentation from the
-          package. Instead, the generation and installation of the API
-          docs can be enabled with a configure or CMake option if
-          Doxygen is available.
-
-        - Remove the XZ logo which was used in the API documentation.
-          The logo has been retired and isn't used by the project
-          anymore. However, it's OK to use it in contexts that refer
-          to the backdoor incident.
-
-        - Remove the PDF versions of the man pages from the source
-          package. These existed primarily for users of operating
-          systems which don't come with tools to render man page
-          source files. The plain text versions are still included
-          in doc/man/txt. PDF files can still be generated to doc/man,
-          if the required tools are available, using "make pdf" after
-          running "configure".
-
-        - Update home page URLs back to their old locations on
-          tukaani.org.
-
-        - Update maintainer info.
-
-    * Tests:
-
-        - In tests/files/README, explain how to recreate the ARM64
-          test files.
-
-        - Remove two tests that used tiny x86 and SPARC object files
-          as the input files. The matching .c file was included but
-          the object files aren't easy to reproduce. The test cases
-          weren't great anyway; they were from the early days (2009)
-          of the project when the test suite had very few tests.
-
-        - Improve a few tests.
-
-
-5.6.1 (2024-03-09)
-
-    IMPORTANT: This fixed bugs in the backdoor (CVE-2024-3094) (someone
-    had forgot to run Valgrind).
-
-    * liblzma: Fixed two bugs relating to GNU indirect function (IFUNC)
-      with GCC. The more serious bug caused a program linked with
-      liblzma to crash on start up if the flag -fprofile-generate was
-      used to build liblzma. The second bug caused liblzma to falsely
-      report an invalid write to Valgrind when loading liblzma.
-
-    * xz: Changed the messages for thread reduction due to memory
-      constraints to only appear under the highest verbosity level.
-
-    * Build:
-
-        - Fixed a build issue when the header file <linux/landlock.h>
-          was present on the system but the Landlock system calls were
-          not defined in <sys/syscall.h>.
-
-        - The CMake build now warns and disables NLS if both gettext
-          tools and pre-created .gmo files are missing. Previously,
-          this caused the CMake build to fail.
-
-    * Minor improvements to man pages.
-
-    * Minor improvements to tests.
-
-
 5.6.0 (2024-02-24)
 
-    IMPORTANT: This added a backdoor (CVE-2024-3094). It's enabled only
-    in the release tarballs.
-
     This bumps the minor version of liblzma because new features were
     added. The API and ABI are still backward compatible with liblzma
     5.4.x and 5.2.x and 5.0.x.
@@ -591,7 +23,7 @@ XZ Utils Release Notes
     * Sandboxing support in xz:
 
         - Landlock is now used even when xz needs to create files.
-          In this case the sandbox has to be more permissive than
+          In this case the sandbox is has to be more permissive than
           when no files need to be created. A similar thing was
           already in use with pledge(2) since 5.3.4alpha.
 
@@ -857,95 +289,6 @@ XZ Utils Release Notes
     * Added basic Codespell support to help catch typo errors.
 
 
-5.4.7 (2024-05-29)
-
-    * Not changed: Memory sanitizer (MSAN) has a false positive
-      in the CRC CLMUL code which also makes OSS Fuzz unhappy.
-      Valgrind is smarter and doesn't complain.
-
-      A revision to the CLMUL code is coming anyway and this issue
-      will be cleaned up as part of it. It won't be backported to
-      5.6.x or 5.4.x because the old code isn't wrong. There is
-      no reason to risk introducing regressions in old branches
-      just to silence a false positive.
-
-    * liblzma:
-
-        - lzma_index_decoder() and lzma_index_buffer_decode(): Fix
-          a missing output pointer initialization (*i = NULL) if the
-          functions are called with invalid arguments. The API docs
-          say that such an initialization is always done. In practice
-          this matters very little because the problem can only occur
-          if the calling application has a bug and these functions
-          return LZMA_PROG_ERROR.
-
-        - lzma_str_to_filters(): Fix a missing output pointer
-          initialization (*error_pos = 0). This is very similar
-          to the fix above.
-
-        - Fix C standard conformance with function pointer types.
-          This newly showed up with Clang 17 with -fsanitize=undefined.
-          There are no bug reports about this.
-
-        - Fix building with NVIDIA HPC SDK.
-
-    * xz:
-
-        - Fix a C standard conformance issue in --block-list parsing
-          (arithmetic on a null pointer).
-
-        - Fix a warning from GNU groff when processing the man page:
-          "warning: cannot select font 'CW'"
-
-        - Fix outdated threading related information on the man page.
-
-    * xzless:
-
-        - With "less" version 451 and later, use "||-" instead of "|-"
-          in the environment variable LESSOPEN. This way compressed
-          files that contain no uncompressed data are shown correctly
-          as empty.
-
-        - With "less" version 632 and later, use --show-preproc-errors
-          to make "less" show a warning on decompression errors.
-
-    * Autotools-based build system (configure):
-
-        - Symbol versioning variant can now be overridden with
-          --enable-symbol-versions. Documentation in INSTALL was
-          updated to match.
-
-    CMake:
-
-        - Linux on MicroBlaze is handled specially now. This matches
-          the changes made to the Autotools-based build in XZ Utils
-          5.4.2 and 5.2.11.
-
-        - Disable symbol versioning on non-glibc Linux to match what
-          the Autotools build does. For example, symbol versioning
-          isn't enabled with musl.
-
-        - Symbol versioning variant can now be overridden by setting
-          SYMBOL_VERSIONING to "OFF", "generic", or "linux".
-
-    * Documentation:
-
-        - Clarify the description of --disable-assembler in INSTALL.
-          The option only affects 32-bit x86 assembly usage.
-
-        - Add doc/examples/11_file_info.c. It was added to the
-          Git repository in 2017 but forgotten to be added into
-          distribution tarballs.
-
-        - Don't install the TODO file as part of the documentation.
-          The file is out of date.
-
-        - Update home page URLs back to their old locations on
-          tukaani.org.
-
-        - Update maintainer info.
-
-
 5.4.6 (2024-01-26)
 
     * Fixed a bug involving internal function pointers in liblzma not
@@ -968,7 +311,7 @@ XZ Utils Release Notes
     * Added a new test.
 
 
-5.4.5 (2023-11-01)
+5.4.5 (2023-11-31)
 
     * liblzma:
 
@@ -1770,121 +1113,6 @@ XZ Utils Release Notes
       (FreeBSD >= 10).
 
 
-5.2.13 (2024-05-29)
-
-    * liblzma:
-
-        - lzma_index_append(): Fix an assertion failure that could be
-          triggered by a large unpadded_size argument. It was verified
-          that there was no other bug than the assertion failure.
-
-        - lzma_index_decoder() and lzma_index_buffer_decode(): Fix
-          a missing output pointer initialization (*i = NULL) if the
-          functions are called with invalid arguments. The API docs
-          say that such an initialization is always done. In practice
-          this matters very little because the problem can only occur
-          if the calling application has a bug and these functions
-          return LZMA_PROG_ERROR.
-
-        - Fix C standard conformance with function pointer types.
-          This newly showed up with Clang 17 with -fsanitize=undefined.
-          There are no bug reports about this.
-
-        - Fix building with NVIDIA HPC SDK.
-
-        - Fix building with Windows Vista threads and --enable-small.
-          (CMake build doesn't support ENABLE_SMALL in XZ Utils 5.2.x.)
-
-    * xz:
-
-        - Fix a C standard conformance issue in --block-list parsing
-          (arithmetic on a null pointer).
-
-        - Fix a warning from GNU groff when processing the man page:
-          "warning: cannot select font 'CW'"
-
-        - Windows: Handle special files such as "con" or "nul". Earlier
-          the following wrote "foo" to the console and deleted the input
-          file "con_xz":
-
-              echo foo | xz > con_xz
-              xz --suffix=_xz --decompress con_xz
-
-        - Windows: Fix an issue that prevented reading from or writing
-          to non-terminal character devices like NUL.
-
-    * xzless:
-
-        - With "less" version 451 and later, use "||-" instead of "|-"
-          in the environment variable LESSOPEN. This way compressed
-          files that contain no uncompressed data are shown correctly
-          as empty.
-
-        - With "less" version 632 and later, use --show-preproc-errors
-          to make "less" show a warning on decompression errors.
-
-    * Build systems:
-
-        - Add a new line to liblzma.pc for MSYS2 (Windows):
-
-              Cflags.private: -DLZMA_API_STATIC
-
-          When compiling code that will link against static liblzma,
-          the LZMA_API_STATIC macro needs to be defined on Windows.
-
-        - Autotools (configure):
-
-            * Symbol versioning variant can now be overridden with
-              --enable-symbol-versions. Documentation in INSTALL was
-              updated to match.
-
-        - CMake:
-
-            * Fix a bug that prevented other projects from including
-              liblzma multiple times using find_package().
-
-            * Fix a bug where configuring CMake multiple times resulted
-              in HAVE_CLOCK_GETTIME and HAVE_CLOCK_MONOTONIC not being
-              defined.
-
-            * Fix the build with MinGW-w64-based Clang/LLVM 17.
-              llvm-windres now has more accurate GNU windres emulation
-              so the GNU windres workaround from 5.4.1 is needed with
-              llvm-windres version 17 too.
-
-            * The import library on Windows is now properly named
-              "liblzma.dll.a" instead of "libliblzma.dll.a"
-
-            * Add large file support by default for platforms that
-              need it to handle files larger than 2 GiB. This includes
-              MinGW-w64, even 64-bit builds.
-
-            * Linux on MicroBlaze is handled specially now. This
-              matches the changes made to the Autotools-based build
-              in XZ Utils 5.4.2 and 5.2.11.
-
-            * Disable symbol versioning on non-glibc Linux to match
-              what the Autotools build does. For example, symbol
-              versioning isn't enabled with musl.
-
-            * Symbol versioning variant can now be overridden by
-              setting SYMBOL_VERSIONING to "OFF", "generic", or
-              "linux".
-
-    * Documentation:
-
-        - Clarify the description of --disable-assembler in INSTALL.
-          The option only affects 32-bit x86 assembly usage.
-
-        - Don't install the TODO file as part of the documentation.
-          The file is out of date.
-
-        - Update home page URLs back to their old locations on
-          tukaani.org.
-
-        - Update maintainer info.
-
-
 5.2.12 (2023-05-04)
 
     * Fixed a build system bug that prevented building liblzma as a

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,
-                        Doxygen-generated liblzma API docs (HTML)
+        liblzma-doc     Doxygen-generated liblzma API docs (HTML),
+                        example programs
 
 
 2. Package description
@@ -170,14 +170,13 @@ 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
-    installed if the configure option --enable-doxygen is used (it's
-    disabled by default). This requires that Doxygen is available. The
-    API documentation is installed by "make install" to $docdir/api.
-
-        NOTE: The files generated by Doxygen include content from
-        Doxygen itself. Check the license info before distributing
-        the Doxygen-generated files.
+    The Doxygen-generated documentation (HTML) for the liblzma API
+    headers is included in the source release and will be installed by
+    "make install" to $docdir/api. All JavaScript is removed to
+    simplify license compliance and to reduce the install size. If the
+    liblzma API documentation is not desired, either run configure with
+    --disable-doc or remove the doc/api directory before running
+    "make install".
 
 
 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
 
@@ -80,6 +79,8 @@ XZ Utils
     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 +97,9 @@ 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
-    "doc/man" to make the man pages more accessible to those whose
-    operating system doesn't provide an easy way to view man pages.
+    are also provided in plain text (ASCII only) and PDF formats in the
+    directory "doc/man" to make the man pages more accessible to those
+    whose operating system doesn't provide an easy way to view man pages.
 
 
 1.3. Documentation for liblzma
@@ -204,47 +205,77 @@ XZ Utils
 
         https://translationproject.org/html/translators.html
 
-    Updates to translations won't be accepted by methods that bypass
-    the Translation Project because there is a risk of duplicate work:
-    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.
+    Below are notes and testing instructions specific to xz
+    translations.
 
-    If you find language problems in the original English strings,
+    Testing can be done by installing xz into a temporary directory:
+
+        ./configure --disable-shared --prefix=/tmp/xz-test
+        # <Edit the .po file in the po directory.>
+        make -C po update-po
+        make install
+        bash debug/translation.bash | less
+        bash debug/translation.bash | less -S  # For --list outputs
+
+    Repeat the above as needed (no need to re-run configure though).
+
+    Note especially the following:
+
+      - The output of --help and --long-help must look nice on
+        an 80-column terminal. It's OK to add extra lines if needed.
+
+      - In contrast, don't add extra lines to error messages and such.
+        They are often preceded with e.g. a filename on the same line,
+        so you have no way to predict where to put a \n. Let the terminal
+        do the wrapping even if it looks ugly. Adding new lines will be
+        even uglier in the generic case even if it looks nice in a few
+        limited examples.
+
+      - Be careful with column alignment in tables and table-like output
+        (--list, --list --verbose --verbose, --info-memory, --help, and
+        --long-help):
+
+          * All descriptions of options in --help should start in the
+            same column (but it doesn't need to be the same column as
+            in the English messages; just be consistent if you change it).
+            Check that both --help and --long-help look OK, since they
+            share several strings.
+
+          * --list --verbose and --info-memory print lines that have
+            the format "Description:   %s". If you need a longer
+            description, you can put extra space between the colon
+            and %s. Then you may need to add extra space to other
+            strings too so that the result as a whole looks good (all
+            values start at the same column).
+
+          * The columns of the actual tables in --list --verbose --verbose
+            should be aligned properly. Abbreviate if necessary. It might
+            be good to keep at least 2 or 3 spaces between column headings
+            and avoid spaces in the headings so that the columns stand out
+            better, but this is a matter of opinion. Do what you think
+            looks best.
+
+      - Be careful to put a period at the end of a sentence when the
+        original version has it, and don't put it when the original
+        doesn't have it. Similarly, be careful with \n characters
+        at the beginning and end of the strings.
+
+      - Read the TRANSLATORS comments that have been extracted from the
+        source code and included in xz.pot. Some comments suggest
+        testing with a specific command which needs an .xz file. You
+        may use e.g. any tests/files/good-*.xz. However, these test
+        commands are included in translations.bash output, so reading
+        translations.bash output carefully can be enough.
+
+      - If you find language problems in the original English strings,
         feel free to suggest improvements. Ask if something is unclear.
 
+      - The translated messages should be understandable (sometimes this
+        may be a problem with the original English messages too). Don't
+        make a direct word-by-word translation from English especially if
+        the result doesn't sound good in your language.
 
-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=$PWD/inst
-
-    Edit the .po file in the po directory. Then build and install to
-    the "tmp-build/inst" directory, and use translations.bash to see
-    how some of the messages look. Repeat these  steps if needed:
-
-        make -C po update-po
-        make -j"$(nproc)" install
-        bash ../debug/translation.bash | less
-        bash ../debug/translation.bash | less -S  # For --list outputs
-
-    To test other languages, set the LANGUAGE environment variable
-    before running translations.bash. The value should match the PO file
-    name without the .po suffix. Example:
-
-        export LANGUAGE=fi
+    Thanks for your help!
 
 
 5. Other implementations of the .xz format
@@ -259,23 +290,21 @@ 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:
-      - Home page: https://tukaani.org/xz/
-      - Email to maintainer(s): xz@tukaani.org
-      - IRC: #tukaani on Libera Chat
-      - GitHub: https://github.com/tukaani-project/xz
+    If you have questions, bug reports, patches etc. related to XZ Utils,
+    the project maintainers Lasse Collin and Jia Tan can be reached via
+    <xz@tukaani.org>.
 
-    Lead maintainer:
-      - Email: Lasse Collin <lasse.collin@tukaani.org>
-      - IRC: Larhzu on Libera Chat
+    You might find Lasse also from #tukaani on Libera Chat (IRC).
+    The nick is Larhzu. The channel tends to be pretty quiet,
+    so just ask your question and someone might wake up.
 

THANKS

@@ -20,7 +20,6 @@ has been important. :-) In alphabetical order:
   - Jakub Bogusz
   - Adam Borowski
   - Maarten Bosmans
-  - Roel Bouckaert
   - Lukas Braune
   - Benjamin Buch
   - Trent W. Buck
@@ -30,37 +29,24 @@ has been important. :-) In alphabetical order:
   - Frank Busse
   - Daniel Mealha Cabrita
   - Milo Casagrande
-  - Cristiano Ceglia
   - Marek Černocký
   - Tomer Chachamu
-  - Aziz Chaudhry
   - Vitaly Chikunov
   - Antoine Cœur
-  - Elijah Almeida Coimbra
-  - Felix Collin
-  - Ryan Colyer
-  - Marcus Comstedt
-  - Vincent Cruz
   - Gabi Davar
-  - Ron Desmond
-  - Antonio Diaz Diaz
   - İhsan Doğan
   - Chris Donawa
   - Andrew Dudman
   - Markus Duft
   - İsmail Dönmez
-  - Dexter Castor Döpping
   - Paul Eggert
   - Robert Elz
   - Gilles Espinasse
   - Denis Excoffier
   - Vincent Fazio
   - Michael Felt
-  - Sean Fenian
   - Michael Fox
-  - Andres Freund
   - Mike Frysinger
-  - Collin Funk
   - Daniel Richard G.
   - Tomasz Gajc
   - Bjarni Ingi Gislason
@@ -69,14 +55,10 @@ has been important. :-) In alphabetical order:
   - Matthew Good
   - Michał Górny
   - Jason Gorski
-  - Alexander M. Greenham
   - Juan Manuel Guerrero
   - Gabriela Gutierrez
   - Diederik de Haas
-  - Jan Terje Hansen
-  - Tobias Lahrmann Hansen
   - Joachim Henke
-  - Lizandro Heredia
   - Christian Hesse
   - Vincenzo Innocente
   - Peter Ivanov
@@ -86,19 +68,14 @@ has been important. :-) In alphabetical order:
   - Hans Jansen
   - Jouk Jansen
   - Jun I Jin
-  - Christoph Junghans
   - Kiyoshi Kanazawa
   - Joona Kannisto
   - Per Øyvind Karlsen
-  - Firas Khalil Khana
   - Iouri Kharon
-  - Kim Jinyeong
   - Thomas Klausner
   - Richard Koch
   - Anton Kochkov
-  - Harri K. Koskinen
   - Ville Koskinen
-  - Sergey Kosukhin
   - Marcin Kowalczyk
   - Jan Kratochvil
   - Christian Kujau
@@ -108,13 +85,11 @@ has been important. :-) In alphabetical order:
   - James M Leddy
   - Kelvin Lee
   - Vincent Lefevre
-  - Daniel Leonard
   - Hin-Tak Leung
   - Andraž 'ruskie' Levstik
   - Cary Lewis
   - Wim Lewis
   - Xin Li
-  - Yifeng Li
   - Eric Lindblad
   - Lorenzo De Liso
   - H.J. Lu
@@ -122,88 +97,65 @@ has been important. :-) In alphabetical order:
   - Chenxi Mao
   - Gregory Margo
   - Julien Marrec
-  - Pierre-Yves Martin
   - Ed Maste
   - Martin Matuška
-  - Scott McAllister
-  - Chris McCrohan
-  - Derwin McGeary
   - Ivan A. Melnikov
   - Jim Meyering
   - Arkadiusz Miskiewicz
   - Nathan Moinvaziri
   - Étienne Mollier
   - Conley Moorhous
-  - Dirk Müller
-  - Rainer Müller
-  - Andrew Murray
   - Rafał Mużyło
   - Adrien Nader
   - Evan Nemerson
-  - Alexander Neumann
   - Hongbo Ni
   - Jonathan Nieder
-  - Asgeir Storesund Nilsen
   - Andre Noll
-  - Ruarí Ødegaard
   - Peter O'Gorman
   - Dimitri Papadopoulos Orfanos
   - Daniel Packard
   - Filip Palian
   - Peter Pallinger
-  - Kai Pastor
-  - Keith Patton
   - Rui Paulo
   - Igor Pavlov
   - Diego Elio Pettenò
   - Elbert Pol
-  - Guiorgy Potskhishvili
   - Mikko Pouru
-  - Frank Prochnow
   - Rich Prohaska
   - Trần Ngọc Quân
   - Pavel Raiskup
-  - Matthieu Rakotojaona
   - Ole André Vadla Ravnås
   - Eric S. Raymond
   - Robert Readman
   - Bernhard Reutner-Fischer
   - Markus Rickert
   - Cristian Rodríguez
-  - Jeroen Roovers
   - Christian von Roques
   - Boud Roukema
   - Torsten Rupp
   - Stephen Sachs
   - Jukka Salmi
   - Agostino Sarubbo
-  - Vijay Sarvepalli
   - Alexandre Sauvé
   - Benno Schulenberg
   - Andreas Schwab
-  - Eli Schwartz
-  - Peter Seiderer
   - Bhargava Shastry
   - Dan Shechter
   - Stuart Shelton
   - Sebastian Andrzej Siewior
-  - Andrej Skenderija
   - Ville Skyttä
   - Brad Smith
   - Bruce Stark
   - Pippijn van Steenhoven
-  - Tobias Stoeckmann
   - Martin Storsjö
   - Jonathan Stott
   - Dan Stromberg
-  - Douglas Thor
+  - Jia Tan
   - Vincent Torri
-  - Alexey Tourbin
   - Paul Townsend
   - Mohammed Adnène Trojette
-  - Orange Tsai
+  - Alexey Tourbin
   - Taiki Tsunekawa
-  - Mathieu Vachon
   - Maksym Vatsyk
   - Loganaden Velvindron
   - Patrick J. Volkerding
@@ -213,27 +165,14 @@ has been important. :-) In alphabetical order:
   - Christian Weisgerber
   - Dan Weiss
   - Bert Wesarg
-  - Mark Wielaard
   - Fredrik Wikstrom
   - Jim Wilcoxson
   - Ralf Wildenhues
   - Charles Wilson
   - Lars Wirzenius
-  - Vincent Wixsom
   - Pilorz Wojciech
-  - Chien Wong
-  - Xi Ruoyao
   - Ryan Young
   - Andreas Zieringer
-  - 榆柳松 (ZhengSen Wang)
-
-Companies:
-  - Google
-  - Sandfly Security
-
-Other credits:
-  - cleemy desu wayo working with Trend Micro Zero Day Initiative
-  - Orange Tsai and splitline from DEVCORE Research Team
 
 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
-    error message (string) could be provided too. It could be returned
-    by a new function or use a currently-reserved member of lzma_stream.
+    lzma_strerror() to convert lzma_ret to human readable form?
+    This is tricky, because the same error codes are used with
+    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

@@ -17,12 +17,14 @@ ${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.
-# It can be useful when you know that po4a isn't available and
+# Pass --no-po4a or --no-doxygen to this script to skip these steps.
+# It can be useful when you know that po4a or doxygen aren't available and
 # don't want autogen.sh to exit with non-zero exit status.
 generate_po4a="y"
+generate_doxygen="y"
 
 for arg in "$@"
 do
@@ -30,6 +32,10 @@ do
 		"--no-po4a")
 			generate_po4a="n"
 			;;
+
+		"--no-doxygen")
+			generate_doxygen="n"
+			;;
 	esac
 done
 
@@ -39,4 +45,10 @@ 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

@@ -18,7 +18,7 @@ USAGE="Usage: $0
   -a [autogen flags]
   -b [autotools|cmake]
   -c [crc32|crc64|sha256]
-  -d [encoders|decoders|bcj|delta|threads|shared|nls|small|clmul|sandbox]
+  -d [encoders|decoders|bcj|delta|threads|shared|nls|small|ifunc|clmul|sandbox]
   -f [CFLAGS]
   -l [destdir]
   -m [compiler]
@@ -41,6 +41,7 @@ THREADS="y"
 SHARED="y"
 NATIVE_LANG_SUPPORT="y"
 SMALL="n"
+IFUNC="y"
 CLMUL="y"
 SANDBOX="y"
 SRC_DIR="$ABS_DIR/../"
@@ -48,15 +49,12 @@ 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)
@@ -89,6 +87,7 @@ 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";;
 		*) echo "Invalid disable value: $disable_arg"; exit 1 ;;
@@ -108,11 +107,9 @@ while getopts a:b:c:d:l:m:n:s:p:f:w:h opt; do
 	p) PHASE="$OPTARG"
 	;;
 	f)
-		CFLAGS+=" $OPTARG"
+		CFLAGS="$OPTARG"
 		export CFLAGS
 	;;
-	w) WRAPPER="$OPTARG"
-	;;
 	esac
 done
 
@@ -166,7 +163,15 @@ 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
 
@@ -206,18 +211,10 @@ 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" "" "--enable-sandbox=no"
 
-		# 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
 
@@ -230,22 +227,26 @@ 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 "$SMALL" "-DXZ_SMALL=ON" ""
+		add_extra_option "$SMALL" "-DHAVE_SMALL=ON" ""
+
+		if test -n "$CC" ; then
+			EXTRA_OPTIONS="$EXTRA_OPTIONS -DCMAKE_C_COMPILER=$CC"
+		fi
 
 		# Remove old cache file to clear previous settings.
 		rm -f "CMakeCache.txt"
-		cmake "$SRC_DIR/CMakeLists.txt" -B "$DEST_DIR" $EXTRA_OPTIONS -DXZ_CHECKS="$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 "$DEST_DIR"
 	;;
 	esac
@@ -262,7 +263,7 @@ then
 	autotools)
 		cd "$DEST_DIR"
 		# If the tests fail, copy the test logs into the artifacts folder
-		if make check VERBOSE=1 LOG_COMPILER="$WRAPPER"
+		if make check
 		then
 			:
 		else
@@ -273,7 +274,7 @@ then
 	;;
 	cmake)
 		cd "$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/version.sh

@@ -17,5 +17,6 @@ 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 -d '\012\015\025'
+	| tr '\n' '|' \
+	| sed 's/|/./; s/|/./; s/|//g' \
+	| tr -d '\r\n'

cmake/tuklib_common.cmake

@@ -26,29 +26,23 @@ endfunction()
 
 # This is an over-simplified version of AC_USE_SYSTEM_EXTENSIONS in Autoconf
 # or gl_USE_SYSTEM_EXTENSIONS in gnulib.
-#
-# NOTE: This is a macro because the changes to CMAKE_REQUIRED_DEFINITIONS
-# must be visible in the calling scope.
-macro(tuklib_use_system_extensions)
-    if(NOT MSVC)
-        add_compile_definitions(
-            _GNU_SOURCE        # glibc, musl, mingw-w64
-            _NETBSD_SOURCE     # NetBSD, MINIX 3
-            _OPENBSD_SOURCE    # Also NetBSD!
-            __EXTENSIONS__     # Solaris
-            _POSIX_PTHREAD_SEMANTICS # Solaris
-            _DARWIN_C_SOURCE   # macOS
-            _TANDEM_SOURCE     # HP NonStop
-            _ALL_SOURCE        # AIX, z/OS
+macro(tuklib_use_system_extensions TARGET_OR_ALL)
+    if(NOT WIN32)
+        # FIXME? The Solaris-specific __EXTENSIONS__ should be conditional
+        #        even on Solaris. See gnulib: git log m4/extensions.m4.
+        # FIXME? gnulib and autoconf.git has lots of new stuff.
+        tuklib_add_definitions("${TARGET_OR_ALL}"
+            _GNU_SOURCE
+            __EXTENSIONS__
+            _POSIX_PTHREAD_SEMANTICS
+            _TANDEM_SOURCE
+            _ALL_SOURCE
         )
 
         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

@@ -9,7 +9,6 @@
 #############################################################################
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
-include(CMakePushCheckState)
 include(CheckCSourceCompiles)
 include(CheckIncludeFile)
 
@@ -77,7 +76,6 @@ 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 +103,6 @@ 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_large_file_support.cmake

@@ -14,7 +14,6 @@
 #############################################################################
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
-include(CMakePushCheckState)
 include(CheckCSourceCompiles)
 
 function(tuklib_large_file_support TARGET_OR_ALL)

cmake/tuklib_mbstr.cmake

@@ -18,8 +18,4 @@ 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

@@ -12,7 +12,6 @@
 #############################################################################
 
 include("${CMAKE_CURRENT_LIST_DIR}/tuklib_common.cmake")
-include(CMakePushCheckState)
 include(CheckCSourceCompiles)
 include(CheckIncludeFile)
 
@@ -77,11 +76,11 @@ 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 +96,6 @@ 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

configure.ac

@@ -17,7 +17,7 @@
 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])
@@ -304,8 +304,13 @@ AC_ARG_ENABLE([microlzma], AS_HELP_STRING([--disable-microlzma],
 		for example, erofs-utils.]),
 	[], [enable_microlzma=yes])
 case $enable_microlzma in
-	yes | no)
-		AC_MSG_RESULT([$enable_microlzma])
+	yes)
+		AC_DEFINE([HAVE_MICROLZMA], [1],
+			[Define to 1 if MicroLZMA support is enabled.])
+		AC_MSG_RESULT([yes])
+		;;
+	no)
+		AC_MSG_RESULT([no])
 		;;
 	*)
 		AC_MSG_RESULT([])
@@ -358,13 +363,8 @@ if test "x$enable_assembler" = xyes; then
 	esac
 fi
 case $enable_assembler in
-	x86)
-		AC_DEFINE([HAVE_CRC_X86_ASM], [1], [Define to 1 if
-			the 32-bit x86 CRC assembly files are used.])
-		AC_MSG_RESULT([x86])
-		;;
-	no)
-		AC_MSG_RESULT([no])
+	x86 | no)
+		AC_MSG_RESULT([$enable_assembler])
 		;;
 	*)
 		AC_MSG_RESULT([])
@@ -394,16 +394,6 @@ AC_ARG_ENABLE([arm64-crc32], AS_HELP_STRING([--disable-arm64-crc32],
 	[], [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 +521,10 @@ 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,
-		if --enable-doxygen is used,
-		liblzma API documentation is installed too)])],
+		(man pages will still be installed)])],
 	[], [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 +624,12 @@ 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,
@@ -758,44 +714,23 @@ fi
 # --with-pic and --without-pic though. As long as neither --with-pic nor
 # --without-pic is used then we can use #ifdef PIC to detect if the file is
 # being built for a shared library.
-AS_IF([test "x$enable_symbol_versions" = xno], [
+if test "x$enable_symbol_versions" = xno ; then
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no])
-], [test "x$enable_shared" = xno], [
+elif test "x$enable_shared" = xno ; then
 	enable_symbol_versions=no
 	AC_MSG_RESULT([no (not building a shared library)])
-], [
-	# "yes" means that symbol version are to be used but we need to
-	# autodetect which variant to use.
-	if test "x$enable_symbol_versions" = xyes ; then
+else
 	case "$host_cpu-$host_os" in
 		microblaze*)
-				# GCC 12 on MicroBlaze doesn't support
-				# __symver__ attribute. It's simplest and
-				# safest to use the generic version on that
-				# platform since then only the linker script
-				# is needed. The RHEL/CentOS 7 compatibility
-				# symbols don't matter on MicroBlaze.
+			# GCC 12 on MicroBlaze doesn't support __symver__
+			# attribute. It's simplest and safest to use the
+			# generic version on that platform since then only
+			# the linker script is needed. The RHEL/CentOS 7
+			# compatibility symbols don't matter on MicroBlaze.
 			enable_symbol_versions=generic
 			;;
 		*-linux*)
-				# NVIDIA HPC Compiler doesn't support symbol
-				# versioning but the linker script can still
-				# be used.
-				AC_EGREP_CPP([use_generic_symbol_versioning],
-					[#ifdef __NVCOMPILER
-					use_generic_symbol_versioning
-					#endif],
-					[enable_symbol_versions=generic],
-					[enable_symbol_versions=linux])
-				;;
-			*)
-				enable_symbol_versions=generic
-				;;
-		esac
-	fi
-
-	if test "x$enable_symbol_versions" = xlinux ; then
 			case "$pic_mode-$enable_static" in
 				default-*)
 					# Use symvers if PIC is defined.
@@ -816,6 +751,7 @@ AS_IF([test "x$enable_symbol_versions" = xno], [
     possibly picking only src/liblzma/.libs/liblzma.a from the static build.])
 					;;
 			esac
+			enable_symbol_versions=linux
 			AC_DEFINE_UNQUOTED([HAVE_SYMBOL_VERSIONS_LINUX],
 				[$have_symbol_versions_linux],
 				[Define to 1 to if GNU/Linux-specific details
@@ -826,12 +762,13 @@ AS_IF([test "x$enable_symbol_versions" = xno], [
 				time with Libtool if neither --with-pic nor
 				--without-pic is used). This define must be
 				used together with liblzma_linux.map.])
-	elif test "x$enable_symbol_versions" != xgeneric ; then
-		AC_MSG_RESULT([])
-		AC_MSG_ERROR([unknown symbol versioning variant '$enable_symbol_versions'])
-	fi
+			;;
+		*)
+			enable_symbol_versions=generic
+			;;
+	esac
 	AC_MSG_RESULT([yes ($enable_symbol_versions)])
-])
+fi
 
 AM_CONDITIONAL([COND_SYMVERS_LINUX],
 	[test "x$enable_symbol_versions" = xlinux])
@@ -852,35 +789,6 @@ 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.
@@ -889,6 +797,12 @@ 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])
@@ -926,6 +840,13 @@ 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="$CFLAGS"
@@ -958,6 +879,78 @@ if test "x$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.
@@ -1073,15 +1066,11 @@ 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.
@@ -1095,11 +1084,10 @@ AS_IF([test "x$enable_clmul_crc" = xno], [
 #if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
 __attribute__((__target__("ssse3,sse4.1,pclmul")))
 #endif
-int main(void)
+__m128i my_clmul(__m128i a)
 {
-	__m128i a = _mm_set_epi64x(1, 2);
-	a = _mm_clmulepi64_si128(a, a, 0);
-	return 0;
+	const __m128i b = _mm_set_epi64x(1, 2);
+	return _mm_clmulepi64_si128(a, b, 0);
 }
 	]])], [
 		AC_DEFINE([HAVE_USABLE_CLMUL], [1],
@@ -1121,16 +1109,24 @@ AC_MSG_CHECKING([if ARM64 CRC32 instruction is usable])
 AS_IF([test "x$enable_arm64_crc32" = xno], [
 	AC_MSG_RESULT([no, --disable-arm64-crc32 was used])
 ], [
-	AC_LINK_IFELSE([AC_LANG_SOURCE([[
+	# Set -Werror here because some versions of Clang (14 and older)
+	# do not report the unsupported __attribute__((__target__("+crc")))
+	# or __crc32d() as an error, only as a warning. This does not need
+	# to be done with CMake because tests will attempt to link and the
+	# error will be reported then.
+	OLD_CFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -Werror"
+
+	AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 #include <arm_acle.h>
 #include <stdint.h>
 
 #if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
 __attribute__((__target__("+crc")))
 #endif
-int main(void)
+uint32_t my_crc(uint32_t a, uint64_t b)
 {
-	return __crc32d(1, 2) != 0;
+	return __crc32d(a, b);
 }
 	]])], [
 		AC_DEFINE([HAVE_ARM64_CRC32], [1],
@@ -1141,52 +1137,19 @@ int main(void)
 		enable_arm64_crc32=no
 	])
 	AC_MSG_RESULT([$enable_arm64_crc32])
+
+	CFLAGS="$OLD_CFLAGS"
 ])
 
 # Check for ARM64 CRC32 instruction runtime detection.
-#
-#   - getauxval() is supported on Linux.
-#
-#   - elf_aux_info() is supported on FreeBSD and OpenBSD >= 7.6.
-#
-#   - sysctlbyname("hw.optional.armv8_crc32", ...) is supported on Darwin
+# getauxval() is supported on Linux, elf_aux_info() on FreeBSD, and
+# sysctlbyname("hw.optional.armv8_crc32", ...) is supported on Darwin
 # (macOS, iOS, etc.). Note that sysctlbyname() is supported on FreeBSD,
-#     NetBSD, and possibly others too but the string is specific to Apple
-#     OSes. The C code is responsible for checking defined(__APPLE__)
-#     before using sysctlbyname("hw.optional.armv8_crc32", ...).
-#
+# 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$enable_arm64_crc32" = xyes], [
-	AC_CHECK_FUNCS([getauxval elf_aux_info sysctlbyname], [break])
-])
-
-
-# LoongArch CRC32 intrinsics are in larchintrin.h.
-# These are supported by at least GCC and Clang.
-#
-# Only 64-bit LoongArch is currently supported.
-# It doesn't need runtime detection.
-AC_MSG_CHECKING([if LoongArch CRC32 instructions are usable])
-AS_IF([test "x$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])
+	AC_CHECK_FUNCS([getauxval elf_aux_info sysctlbyname])
 ])
 
 
@@ -1214,38 +1177,12 @@ AS_CASE([$enable_sandbox],
 )
 AS_CASE([$enable_sandbox],
 	[auto | landlock], [
-		AC_MSG_CHECKING([if Linux Landlock is usable])
-
-		# A compile check is done here because some systems have
-		# linux/landlock.h, but do not have the syscalls defined
-		# in order to actually use Linux Landlock.
-		AC_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;
-			}
-		]])], [
+		AC_CHECK_HEADERS([linux/landlock.h], [
 			enable_sandbox=found
 
-			AS_CASE(["$CC $CFLAGS"], [*-fsanitize=*],
-				[AC_MSG_ERROR([
-    CC or CFLAGS contain '-fsanitize=' which is incompatible with the Landlock
+			AS_CASE([$CFLAGS], [*-fsanitize=*], [AC_MSG_ERROR([
+    CFLAGS contains '-fsanitize=' which is incompatible with the Landlock
     sandboxing. Use --disable-sandbox when using '-fsanitize'.])])
-
-			AC_DEFINE([HAVE_LINUX_LANDLOCK], [1],
-				[Define to 1 if Linux Landlock is supported.
-				See configure.ac for details.])
-			AC_MSG_RESULT([yes])
-		], [
-			AC_MSG_RESULT([no])
 		])
 	]
 )
@@ -1319,8 +1256,6 @@ AS_IF([test "$GCC" = yes], [
 			-Wmissing-prototypes \
 			-Wmissing-declarations \
 			-Wredundant-decls \
-			-Wimplicit-fallthrough \
-			-Wimplicit-fallthrough=5 \
 			\
 			-Wc99-compat \
 			-Wc11-extensions \

debug/Makefile.am

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

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

@@ -10,8 +10,8 @@
 # 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
-# directory).
+# arguments are given, this script uses ../src/xz/xz (relative to the
+# 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,
@@ -32,6 +32,10 @@ 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 +45,15 @@ 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 +78,17 @@ 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 --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 good-1-check*" \
+	"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

@@ -1,243 +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
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-e4103c00b237a7dfc0f2419ea0aafb739822405facea7e4ecc8fd10dcd82c734  xz-5.0.0-windows.7z
-e0aa4e3d504d7b27b9d6b76107d0f3656a06a3217dd5006c401aa83d18931b40  xz-5.0.1.tar
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-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

doc/examples/03_compress_custom.c

@@ -45,7 +45,7 @@ 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/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:
-        The section 1.1.3 was modified to allow End of Payload Marker
-        with a known Uncompressed Size.
+        Compared to the previous version (2022-07-13 21:00+0300)
+        the section 2 was modified to change links from http to
+        https and to update XZ links.
 
 
 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

@@ -45,15 +45,13 @@ 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/crc64_fast.c \
+	../src/liblzma/check/crc32_table.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

@@ -12,9 +12,6 @@
 /* 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 +81,9 @@
 /* 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 +108,15 @@
 /* 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 +145,7 @@
 #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 +1,13 @@
+<hr class="footer"/>
+
+<p style="text-align: right;padding-right: 12px;">
+	XZ logo &copy; 2023 by Jia Tan is licensed under
+	<a href="COPYING.CC-BY-SA-4.0"
+	   rel="license"
+	   style="display:inline-block;">
+		CC BY-SA 4.0
+	</a>
+</p>
+
+</body>
+</html>

doxygen/update-doxygen

@@ -3,13 +3,14 @@
 
 #############################################################################
 #
-# While it's possible to use the Doxyfile as is to generate liblzma API
-# documentation, it is recommended to use this script because this adds
-# the XZ Utils version number to the generated HTML.
+# Updates the Doxygen generated documentation files in the source tree.
+# If the doxygen command is not installed, it will exit with an error.
+# This script can generate Doxygen documentation for all source files or for
+# just liblzma API header files.
 #
-# Other features:
-#  - Generate documentation of the XZ Utils internals.
-#  - Set input and output paths for out-of-tree builds.
+# It is recommended to use this script to update the Doxygen-generated HTML
+# files since this will include the package version in the output and,
+# in case of liblzma API docs, strip JavaScript files from the output.
 #
 #############################################################################
 #
@@ -20,67 +21,31 @@
 
 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
-	1)
-		# One argument: Building inside the source tree
-		ABS_TOP_SRCDIR=`dirname "$0"`/..
-		ABS_OUTDIR=$ABS_TOP_SRCDIR/doc
-		;;
-	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
+if test ! -f Doxyfile; then
+	cd `dirname "$0"` || exit 1
+	if test ! -f Doxyfile; then
+		echo "doxygen/update-doxygen: Cannot find Doxyfile" >&2
 		exit 1
 	fi
-if test ! -d "$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 +53,57 @@ 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"
-			echo "STRIP_FROM_PATH        = $ABS_SRCDIR"
-			echo "INPUT                  = $ABS_SRCDIR"
-		) | doxygen -q -
+		) | doxygen -
+
+		# As of Doxygen 1.8.0 - 1.9.6 and the Doxyfile options we use,
+		# the output is good without any JavaScript. Unfortunately
+		# Doxygen doesn't have an option to disable JavaScript usage
+		# completely so we strip it away with the hack below.
+		#
+		# Omitting the JavaScript code avoids some license hassle
+		# as jquery.js is fairly big, it contains more than jQuery
+		# itself, and doesn't include the actual license text (it
+		# only refers to the MIT license by name).
+		echo "Stripping JavaScript from Doxygen output..."
+		for F in ../doc/api/*.html
+		do
+			sed 's/<script [^>]*><\/script>//g
+				s/onclick="[^"]*"//g' \
+				"$F" > ../doc/api/tmp
+			mv -f ../doc/api/tmp "$F"
+		done
+		rm -f ../doc/api/*.js
 		;;
 
 	internal)
-		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"
-			echo 'PROJECT_NAME           = "XZ Utils"'
+			cat Doxyfile
 			echo "PROJECT_NUMBER         = $PACKAGE_VERSION"
-			echo "OUTPUT_DIRECTORY       = $ABS_OUTDIR"
-			echo "STRIP_FROM_PATH        = $ABS_TOP_SRCDIR"
-			echo "INPUT                  = $ABS_TOP_SRCDIR/src"
+			echo 'PROJECT_NAME           = "XZ Utils"'
+			echo 'STRIP_FROM_PATH        = ../src'
+			echo 'INPUT                  = ../src'
 			echo 'HTML_OUTPUT            = internal'
+			echo 'EXTRACT_PRIVATE        = YES'
+			echo 'EXTRACT_STATIC         = YES'
+			echo 'EXTRACT_LOCAL_CLASSES  = YES'
 			echo 'SEARCHENGINE           = YES'
-		) | doxygen -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

m4/getopt.m4

@@ -8,10 +8,10 @@ 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 +23,8 @@ 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 +1,13 @@
 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

m4/tuklib_cpucores.m4

@@ -71,7 +71,7 @@ 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 +92,7 @@ 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 +116,7 @@ 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 +133,7 @@ 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_mbstr.m4

@@ -27,5 +27,5 @@
 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

@@ -65,11 +65,6 @@ 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 +76,7 @@ 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 +88,7 @@ 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 +104,7 @@ 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 +118,7 @@ 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 +133,7 @@ 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 +150,7 @@ 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/visibility.m4

@@ -1,8 +1,7 @@
 dnl SPDX-License-Identifier: FSFULLR
 
-# visibility.m4
-# serial 9
-dnl Copyright (C) 2005, 2008, 2010-2024 Free Software Foundation, Inc.
+# visibility.m4 serial 8
+dnl Copyright (C) 2005, 2008, 2010-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -34,18 +33,18 @@ 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="$CFLAGS -fvisibility=hidden"
        dnl We use the option -Werror and a function dummyfunc, because on some
        dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning
@@ -71,7 +70,7 @@ AC_DEFUN([gl_VISIBILITY],
             [[]])],
          [gl_cv_cc_visibility=yes],
          [gl_cv_cc_visibility=no])
-       CFLAGS="$gl_saved_CFLAGS"
+       CFLAGS="$gl_save_CFLAGS"
       ])
     if test $gl_cv_cc_visibility = yes; then
       CFLAG_VISIBILITY="-fvisibility=hidden"

po/LINGUAS

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

po/Makevars

@@ -14,7 +14,7 @@ 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_ --no-wrap --package-name='XZ Utils'
 
 # 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
@@ -63,7 +63,7 @@ USE_MSGCTXT = no
 # 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
+MSGMERGE_OPTIONS = --no-wrap
 
 # These options get passed to msginit.
 # If you want to disable line wrapping when writing PO files, add
@@ -84,8 +84,4 @@ PO_DEPENDS_ON_POT = yes
 # 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
+DIST_DEPENDS_ON_UPDATE_PO = yes

po/POTFILES.in

@@ -15,4 +15,3 @@ src/xz/suffix.c
 src/xz/util.c
 src/lzmainfo/lzmainfo.c
 src/common/tuklib_exit.c
-src/liblzma/common/string_conversion.c

po4a/.gitignore

@@ -0,0 +1,3 @@
+/man
+/xz-man.pot
+/*.po.authors

po4a/po4a.conf

@@ -4,7 +4,7 @@
 # to get a new .po file. After translating the .po file, run
 # "update-po" again to generate the translated man pages.
 
-[po4a_langs] de fr it ko pt_BR ro sr uk
+[po4a_langs] de fr ko pt_BR ro uk
 [po4a_paths] xz-man.pot $lang:$lang.po
 
 [type: man] ../src/xz/xz.1              $lang:man/$lang/xz.1        add_$lang:?$lang.po.authors

po4a/update-po

@@ -54,36 +54,13 @@ done
 # when nothing else has changed. This makes it slower but it's fine
 # as long as this isn't run every time when "make" is run at the
 # top level directory. (po4a isn't super-fast even without --force).
-#
-# Make diffing the .pot and .po files easier:
-#
-#   --porefs file       Put only the input filenames, not line numbers,
-#                       into the .pot file. This way they won't get
-#                       copied to the .po files either.
-#
-#   --wrap-po newlines  Wrap msgids only at \n in the .pot file.
-#
-#   --msgmerge-opt "--no-wrap"
-#                       Wrap msgids and msgstrs only at \n in the .po files.
-#
-# The values from --package-name and --package-version are used to create
-# the Project-Id-Version field. It likely makes sense that its value isn't
-# identical to the value in the program message translations. In practice
-# it seems that the .po files from many (but not all) translators will use
-# "xz-man" no matter what is specified here and in xz-man.pot. Thus it's
-# best to use "xz-man" here to get the most consistent results.
 set -x
 po4a --force --verbose \
-	--porefs file --wrap-po newlines --msgmerge-opt "--no-wrap" \
-	--package-name="xz-man" \
+	--package-name="XZ Utils" \
 	--package-version="$PACKAGE_VERSION" \
 	--copyright-holder="The XZ Utils authors and contributors" \
 	po4a.conf
 
-# Remove the *.po.authors files that were generated above.
-# This way they won't get included in distribution tarballs.
-rm -f *.po.authors
-
 # Add the customized POT header which contains the SPDX license
 # identifier and spells out the license name instead of saying
 # "the same license as the XZ Utils package".

src/Makefile.am

@@ -17,7 +17,6 @@ endif
 
 EXTRA_DIST = \
 	common/common_w32res.rc \
-	common/my_landlock.h \
 	common/mythread.h \
 	common/sysdefs.h \
 	common/tuklib_common.h \
@@ -28,18 +27,12 @@ EXTRA_DIST = \
 	common/tuklib_exit.h \
 	common/tuklib_gettext.h \
 	common/tuklib_integer.h \
-	common/tuklib_mbstr.h \
 	common/tuklib_mbstr_fw.c \
-	common/tuklib_mbstr_nonprint.c \
-	common/tuklib_mbstr_nonprint.h \
+	common/tuklib_mbstr.h \
 	common/tuklib_mbstr_width.c \
-	common/tuklib_mbstr_wrap.c \
-	common/tuklib_mbstr_wrap.h \
 	common/tuklib_open_stdxxx.c \
 	common/tuklib_open_stdxxx.h \
 	common/tuklib_physmem.c \
 	common/tuklib_physmem.h \
 	common/tuklib_progname.c \
-	common/tuklib_progname.h \
-	common/w32_application.manifest \
-	common/w32_application.manifest.comments.txt
+	common/tuklib_progname.h

src/common/common_w32res.rc

@@ -22,7 +22,6 @@
 #define MY_PRODUCT     PACKAGE_NAME " <" PACKAGE_URL ">"
 
 LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
-
 VS_VERSION_INFO VERSIONINFO
   FILEVERSION MY_VERSION
   PRODUCTVERSION MY_VERSION
@@ -50,8 +49,3 @@ BEGIN
         VALUE "Translation", 0x409, 1200
     END
 END
-
-/* Omit the manifest on Cygwin and MSYS2 (both define __CYGWIN__). */
-#if MY_TYPE == VFT_APP && !defined(__CYGWIN__)
-CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST "w32_application.manifest"
-#endif

src/common/my_landlock.h

@@ -1,141 +0,0 @@
-// SPDX-License-Identifier: 0BSD
-
-///////////////////////////////////////////////////////////////////////////////
-//
-/// \file       my_landlock.h
-/// \brief      Linux Landlock sandbox helper functions
-//
-//  Author:     Lasse Collin
-//
-///////////////////////////////////////////////////////////////////////////////
-
-#ifndef MY_LANDLOCK_H
-#define MY_LANDLOCK_H
-
-#include "sysdefs.h"
-
-#include <linux/landlock.h>
-#include <sys/syscall.h>
-#include <sys/prctl.h>
-
-
-/// \brief      Initialize Landlock ruleset attributes to forbid everything
-///
-/// The supported Landlock ABI is checked at runtime and only the supported
-/// actions are forbidden in the attributes. Thus, if the attributes are
-/// used with my_landlock_create_ruleset(), it shouldn't fail.
-///
-/// \return     On success, the Landlock ABI version is returned (a positive
-///             integer). If Landlock isn't supported, -1 is returned.
-static int
-my_landlock_ruleset_attr_forbid_all(struct landlock_ruleset_attr *attr)
-{
-	memzero(attr, sizeof(*attr));
-
-	const int abi_version = syscall(SYS_landlock_create_ruleset,
-			(void *)NULL, 0, LANDLOCK_CREATE_RULESET_VERSION);
-	if (abi_version <= 0)
-		return -1;
-
-	// ABI 1 except the few at the end
-	attr->handled_access_fs
-			= LANDLOCK_ACCESS_FS_EXECUTE
-			| LANDLOCK_ACCESS_FS_WRITE_FILE
-			| LANDLOCK_ACCESS_FS_READ_FILE
-			| LANDLOCK_ACCESS_FS_READ_DIR
-			| LANDLOCK_ACCESS_FS_REMOVE_DIR
-			| LANDLOCK_ACCESS_FS_REMOVE_FILE
-			| LANDLOCK_ACCESS_FS_MAKE_CHAR
-			| LANDLOCK_ACCESS_FS_MAKE_DIR
-			| LANDLOCK_ACCESS_FS_MAKE_REG
-			| LANDLOCK_ACCESS_FS_MAKE_SOCK
-			| LANDLOCK_ACCESS_FS_MAKE_FIFO
-			| LANDLOCK_ACCESS_FS_MAKE_BLOCK
-			| LANDLOCK_ACCESS_FS_MAKE_SYM
-#ifdef LANDLOCK_ACCESS_FS_REFER
-			| LANDLOCK_ACCESS_FS_REFER // ABI 2
-#endif
-#ifdef LANDLOCK_ACCESS_FS_TRUNCATE
-			| LANDLOCK_ACCESS_FS_TRUNCATE // ABI 3
-#endif
-#ifdef LANDLOCK_ACCESS_FS_IOCTL_DEV
-			| LANDLOCK_ACCESS_FS_IOCTL_DEV // ABI 5
-#endif
-			;
-
-#ifdef LANDLOCK_ACCESS_NET_BIND_TCP
-	// ABI 4
-	attr->handled_access_net
-			= LANDLOCK_ACCESS_NET_BIND_TCP
-			| LANDLOCK_ACCESS_NET_CONNECT_TCP;
-#endif
-
-#ifdef LANDLOCK_SCOPE_SIGNAL
-	 // ABI 6
-	 attr->scoped
-			 = LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET
-			 | LANDLOCK_SCOPE_SIGNAL;
-#endif
-
-	// Disable flags that require a new ABI version.
-	switch (abi_version) {
-	case 1:
-#ifdef LANDLOCK_ACCESS_FS_REFER
-		attr->handled_access_fs &= ~LANDLOCK_ACCESS_FS_REFER;
-#endif
-		FALLTHROUGH;
-
-	case 2:
-#ifdef LANDLOCK_ACCESS_FS_TRUNCATE
-		attr->handled_access_fs &= ~LANDLOCK_ACCESS_FS_TRUNCATE;
-#endif
-		FALLTHROUGH;
-
-	case 3:
-#ifdef LANDLOCK_ACCESS_NET_BIND_TCP
-		attr->handled_access_net = 0;
-#endif
-		FALLTHROUGH;
-
-	case 4:
-#ifdef LANDLOCK_ACCESS_FS_IOCTL_DEV
-		attr->handled_access_fs &= ~LANDLOCK_ACCESS_FS_IOCTL_DEV;
-#endif
-		FALLTHROUGH;
-
-	case 5:
-#ifdef LANDLOCK_SCOPE_SIGNAL
-		attr->scoped = 0;
-#endif
-		FALLTHROUGH;
-
-	default:
-		// We only know about the features of the ABIs 1-6.
-		break;
-	}
-
-	return abi_version;
-}
-
-
-/// \brief      Wrapper for the landlock_create_ruleset(2) syscall
-///
-/// Syscall wrappers provide argument type checking.
-///
-/// \note       Remember to call `prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)` too!
-static inline int
-my_landlock_create_ruleset(const struct landlock_ruleset_attr *attr,
-		size_t size, uint32_t flags)
-{
-	return syscall(SYS_landlock_create_ruleset, attr, size, flags);
-}
-
-
-/// \brief      Wrapper for the landlock_restrict_self(2) syscall
-static inline int
-my_landlock_restrict_self(int ruleset_fd, uint32_t flags)
-{
-	return syscall(SYS_landlock_restrict_self, ruleset_fd, flags);
-}
-
-#endif

src/common/mythread.h

@@ -200,7 +200,7 @@ mythread_join(mythread thread)
 }
 
 
-// Initializes a mutex. Returns zero on success and non-zero on error.
+// Initiatlizes a mutex. Returns zero on success and non-zero on error.
 static inline int
 mythread_mutex_init(mythread_mutex *mutex)
 {

src/common/sysdefs.h

@@ -23,29 +23,17 @@
 #	include <config.h>
 #endif
 
-// Choose if MinGW-w64's stdio replacement functions should be used.
-// The default has varied slightly in the past so it's clearest to always
-// set it explicitly.
+// This #define ensures that C99 and POSIX compliant stdio functions are
+// available with MinGW-w64 (both 32-bit and 64-bit). Modern MinGW-w64 adds
+// this automatically, for example, when the compiler is in C99 (or later)
+// mode when building against msvcrt.dll. It still doesn't hurt to be explicit
+// that we always want this and #define this unconditionally.
 //
-// Modern MinGW-w64 enables the replacement functions even with UCRT
-// when _GNU_SOURCE is defined. That's good because UCRT doesn't support
-// the POSIX thousand separator flag in printf (like "%'u"). Otherwise
-// XZ Utils works with the UCRT stdio functions.
-//
-// The replacement functions add over 20 KiB to each executable. For
-// size-optimized builds (HAVE_SMALL), disable the replacements.
-// Then thousand separators aren't shown in xz's messages but this is
-// a minor downside compare to the slower speed of the HAVE_SMALL builds.
-//
-// The legacy MSVCRT is pre-C99 and it's best to always use the stdio
-// replacements functions from MinGW-w64.
-#if defined(__MINGW32__) && !defined(__USE_MINGW_ANSI_STDIO)
+// With Universal CRT (UCRT) this is less important because UCRT contains
+// C99-compatible stdio functions. It's still nice to #define this as UCRT
+// doesn't support the POSIX thousand separator flag in printf (like "%'u").
+#ifdef __MINGW32__
 #	define __USE_MINGW_ANSI_STDIO 1
-#	include <_mingw.h>
-#	if defined(_UCRT) && defined(HAVE_SMALL)
-#		undef __USE_MINGW_ANSI_STDIO
-#		define __USE_MINGW_ANSI_STDIO 0
-#	endif
 #endif
 
 // size_t and NULL
@@ -168,26 +156,17 @@ typedef unsigned char _Bool;
 #	define __bool_true_false_are_defined 1
 #endif
 
-// We may need alignas from C11/C17/C23.
-#if __STDC_VERSION__ >= 202311
-	// alignas is a keyword in C23. Do nothing.
-#elif __STDC_VERSION__ >= 201112
-	// Oracle Developer Studio 12.6 lacks <stdalign.h>.
-	// For simplicity, avoid the header with all C11/C17 compilers.
-#	define alignas _Alignas
-#elif defined(__GNUC__) || defined(__clang__)
-#	define alignas(n) __attribute__((__aligned__(n)))
-#else
-#	define alignas(n)
-#endif
-
 #include <string.h>
 
-// MSVC v19.00 (VS 2015 version 14.0) and later should work.
+// Visual Studio 2013 update 2 supports only __inline, not inline.
+// MSVC v19.0 / VS 2015 and newer support both.
 //
 // MSVC v19.27 (VS 2019 version 16.7) added support for restrict.
 // Older ones support only __restrict.
 #ifdef _MSC_VER
+#	if _MSC_VER < 1900 && !defined(inline)
+#		define inline __inline
+#	endif
 #	if _MSC_VER < 1927 && !defined(restrict)
 #		define restrict __restrict
 #	endif
@@ -217,13 +196,4 @@ typedef unsigned char _Bool;
 #	define lzma_attr_alloc_size(x)
 #endif
 
-#if __STDC_VERSION__ >= 202311
-#	define FALLTHROUGH [[__fallthrough__]]
-#elif (defined(__GNUC__) && __GNUC__ >= 7) \
-		|| (defined(__clang_major__) && __clang_major__ >= 10)
-#	define FALLTHROUGH __attribute__((__fallthrough__))
-#else
-#	define FALLTHROUGH ((void)0)
-#endif
-
 #endif

src/common/tuklib_common.h

@@ -56,13 +56,6 @@
 #	define TUKLIB_GNUC_REQ(major, minor) 0
 #endif
 
-#if defined(__GNUC__) || defined(__clang__)
-#	define tuklib_attr_format_printf(fmt_index, args_index) \
-		__attribute__((__format__(__printf__, fmt_index, args_index)))
-#else
-#	define tuklib_attr_format_printf(fmt_index, args_index)
-#endif
-
 // tuklib_attr_noreturn attribute is used to mark functions as non-returning.
 // We cannot use "noreturn" as the macro name because then C23 code that
 // uses [[noreturn]] would break as it would expand to [[ [[noreturn]] ]].
@@ -75,7 +68,9 @@
 //     __attribute__((nonnull(1)))
 //     extern void foo(const char *s);
 //
-#if   defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311
+// FIXME: Update __STDC_VERSION__ for the final C23 version. 202000 is used
+// by GCC 13 and Clang 15 with -std=c2x.
+#if   defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000
 #	define tuklib_attr_noreturn [[noreturn]]
 #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112
 #	define tuklib_attr_noreturn _Noreturn

src/common/tuklib_gettext.h

@@ -40,15 +40,4 @@
 #endif
 #define N_(msgid) msgid
 
-// Optional: Strings that are word wrapped using tuklib_mbstr_wrap may be
-// marked with W_("foo) in the source code. xgettext can then add a comment
-// to all such strings to inform translators. The following option needs to
-// be added to XGETTEXT_OPTIONS in po/Makevars or in an equivalent place:
-//
-// '--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."'
-//
-// NOTE: The double-quotes in the --keyword argument above must be passed to
-// xgettext as is, thus one needs the single-quotes in Makevars.
-#define W_(msgid) _(msgid)
-
 #endif