XZ Utils v5.4.7

NOTE: 5.2.13, 5.4.7, and 5.6.2 have a build system issue that prevents building of shared libraries on some systems like mips64. See the patch itself for details. The same patch applies to 5.2.13, 5.4.7, and 5.6.2.

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        - Fix outdated threading related information on the man page.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.