Dear maintainers,

Compiling the libvbz-hdf-plugin failed for loong64 in the Debian Package
Auto-Building environment.
The error log is as follows,
```
[ 33%] Built target hdf_test_utils
In file included from
/build/reproducible-path/libvbz-hdf-plugin-1.0.2/vbz/v0/vbz_streamvbyte.cpp:2:
In static member function ‘static std::vector<U> StreamVByteWorkerV0<T,
UseZigZag>::cast(const gsl::span<V>&) [with U = int; V = const int; T =
int; bool UseZigZag = true]’,
     inlined from ‘static vbz_size_t StreamVByteWorkerV0<T,
UseZigZag>::compress(gsl::span<const char>, gsl::span<char>) [with T =
int; bool UseZigZag = true]’ at
/build/reproducible-path/libvbz-hdf-plugin-1.0.2/vbz/v0/vbz_streamvbyte_impl.h:30:35,
     inlined from ‘vbz_size_t
vbz_delta_zig_zag_streamvbyte_compress_v0(const void*, vbz_size_t,
void*, vbz_size_t, int, bool)’ at
/build/reproducible-path/libvbz-hdf-plugin-1.0.2/vbz/v0/vbz_streamvbyte.cpp:54:73:
/build/reproducible-path/libvbz-hdf-plugin-1.0.2/vbz/v0/vbz_streamvbyte_impl.h:75:23:
error: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’
offset [0, 3] is out of the bounds [0, 0] [-Werror=array-bounds=]
    75 |             output[i] = input[i];
```

Please consider the patch attached.
I have built libvbz-hdf-plugin normally on locally.

Best regards,
Dandan Zhang

Control: retitle -1 libvbz-hdf-plugin: Fix FTBFS on loong64
Control: tags -1 +ftbfs

This looks like more than a workaround than an actual fix as it just suppresses a warning.
Is it known why this warning shows on loong64 only?

Adrian

Control: retitle -1 libvbz-hdf-plugin: Fix FTBFS on loong64
Control: tags -1 +ftbfs

This looks like more than a workaround than an actual fix as it just suppresses a warning.
Is it known why this warning shows on loong64 only?

Adrian

Hi,

I intend to upload a new upstream version soon.  I wonder whether the
workaround to accept the compiler warning might be needed even for this
version and if so if there might be a better solution than hiding a
potential code problem.

Thank you for the patch anyway
    Andreas.

Hello,

Bug #1132377 in vbz-compression reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/med-team/libvbz-hdf-plugin/-/commit/da0827a378b6b35f7a9f7bf02969059ff79d4403

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1132377

We believe that the bug you reported is fixed in the latest version of
libvbz-hdf-plugin, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1132377@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Tille <tille@debian.org> (supplier of updated libvbz-hdf-plugin package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 19 Oct 2026 11:59:55 +0200
Source: libvbz-hdf-plugin
Architecture: source
Version: 1.0.13-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Med Packaging Team <debian-med-packaging@lists.alioth.debian.org>
Changed-By: Andreas Tille <tille@debian.org>
Closes: 1132377
Changes:
 libvbz-hdf-plugin (1.0.13-2) unstable; urgency=medium
 .
   * d/watch: Use Dist in Gihub template
   * Add autopkgtest: VBZ write/read round trip; fix filter parameters and
     HDF5_PLUGIN_PATH so the test works with HDF5 2.x
   * fix-filter-buf-size.patch: new: use nbytes as compressed input size in
     the HDF5 filter (HDF5 2.x changed the meaning of *buf_size on the
     decompression path).  Fixes reading VBZ compressed data with
     HDF5 >= 2.x.  (Affects: #1146006)
   * Verified build on loong64
     Closes: #1132377
Checksums-Sha1:
 7ba053f10dd2ef63dc29daf8706b9f98e5ce921d 2323 libvbz-hdf-plugin_1.0.13-2.dsc
 9c9b743cad77bec1159d3af1199bad71ad1c9105 10432 libvbz-hdf-plugin_1.0.13-2.debian.tar.xz
 c925fd31ae948e8c24b6636a8f14fe8fe5d81172 9011 libvbz-hdf-plugin_1.0.13-2_amd64.buildinfo
Checksums-Sha256:
 d945f149827b6835f93d3e65186be54539e105c8738f3de6a5ced66888bfdca1 2323 libvbz-hdf-plugin_1.0.13-2.dsc
 5247d57881a7792eab83d27062cfa315211a16b2e3f07ef14675a4dec5682b79 10432 libvbz-hdf-plugin_1.0.13-2.debian.tar.xz
 5a58264d564dd82d93579a76b0106a26d4ad6cd35ea7c2e92fed9e8be30a9a84 9011 libvbz-hdf-plugin_1.0.13-2_amd64.buildinfo
Files:
 c7d75a2e2f4713a584cea407dac36c9d 2323 science optional libvbz-hdf-plugin_1.0.13-2.dsc
 769ab971a6ebda48d84e2ef00cd79723 10432 science optional libvbz-hdf-plugin_1.0.13-2.debian.tar.xz
 85dfbaf0cb9a5851207bbca96a3999c2 9011 science optional libvbz-hdf-plugin_1.0.13-2_amd64.buildinfo
-----BEGIN PGP SIGNATURE-----
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=HJcn
-----END PGP SIGNATURE-----