tests: test_tar_sqfs.sh failures on Fedora Rawhide (zlib -> zlib-ng transition)

I currently package squashfs-tools-ng 1.2.0 for Fedora & EPEL: https://packages.fedoraproject.org/pkgs/squashfs-tools-ng/ In Fedora Rawhide, a mass rebuild has just occured, and the package now fails to build due to some of the `test_tar_sqfs.sh` tests failing: ``` tests/libtar/data/long-paths/gnu.sqfs: FAILED tests/libtar/data/long-paths/pax.sqfs: FAILED tests/libtar/data/long-paths/ustar.sqfs: FAILED tests/libtar/data/sparse-files/gnu-small.sqfs: FAILED tests/libtar/data/sparse-files/gnu.sqfs: OK tests/libtar/data/sparse-files/pax-gnu0-1.sqfs: OK tests/libtar/data/sparse-files/pax-gnu0-0.sqfs: OK tests/libtar/data/sparse-files/pax-gnu1-0.sqfs: OK tests/libtar/data/large-mtime/12-digit.sqfs: FAILED tests/libtar/data/large-mtime/gnu.sqfs: FAILED tests/libtar/data/large-mtime/pax.sqfs: FAILED tests/libtar/data/negative-mtime/gnu.sqfs: FAILED tests/libtar/data/negative-mtime/pax.sqfs: FAILED tests/libtar/data/format-acceptance/gnu-g.sqfs: FAILED tests/libtar/data/format-acceptance/gnu.sqfs: FAILED tests/libtar/data/format-acceptance/ustar-pre-posix.sqfs: FAILED tests/libtar/data/format-acceptance/v7.sqfs: FAILED tests/libtar/data/format-acceptance/pax.sqfs: FAILED tests/libtar/data/format-acceptance/ustar.sqfs: FAILED tests/libtar/data/format-acceptance/link_filled.sqfs: OK tests/libtar/data/user-group-largenum/gnu.sqfs: FAILED tests/libtar/data/user-group-largenum/8-digit.sqfs: FAILED tests/libtar/data/user-group-largenum/pax.sqfs: FAILED tests/libtar/data/xattr/xattr-schily-binary.sqfs: FAILED tests/libtar/data/xattr/xattr-schily.sqfs: FAILED tests/libtar/data/xattr/xattr-libarchive.sqfs: FAILED tests/libtar/data/xattr/acl.sqfs: FAILED tests/tar2sqfs/root-becomes.sqfs: FAILED sha512sum: WARNING: 23 computed checksums did NOT match FAIL tests/tar2sqfs/test_tar_sqfs.sh (exit status: 1) ``` It appears that the sha512sums of the generated sqfs files are not as expected, most likely due to the switch from zlib to zlib-ng in for Fedora 40. https://fedoraproject.org/wiki/Changes/ZlibNGTransition > [🔗](https://fedoraproject.org/wiki/Changes/ZlibNGTransition#Upgrade/compatibility_impact) Upgrade/compatibility impact > > Zlib-ng has a zlib-compat mode that aims to preserve both API and ABI compatibility with the original Zlib. However certain application tests may rely on hardcoded checksums for the compressed output. These tests could fail due to various changes, even if the compressed output remains valid and decompresses correctly. My current thinking in the short term is that in the Fedora packaging I can patch the expected shasums, having done some manual verification that the files using zlib-ng are equivalent. I'm unclear, though, what might be an appropriate upstream PR I could attempt to work up... if one would be welcome? Thanks again for your efforts on the tools!