Hi,

During a test rebuild of HDF5's reverse dependencies against HDF5 2.1.0
currently in experimental, h5py FTBFS because its build toolchain
doesn't support this new major release.

The attached patch is a workaround for this issue and supports both
HDF5 1.14.6 in unstable and HDF5 2.1.0 in experimental.

Best,
_g.

- -- System Information:
Debian Release: 12.0
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-44-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
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We believe that the bug you reported is fixed in the latest version of
h5py, 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 1139604@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Drew Parsons <dparsons@debian.org> (supplier of updated h5py 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: Thu, 06 Aug 2026 18:32:22 +0200
Source: h5py
Architecture: source
Version: 3.16.0-4
Distribution: unstable
Urgency: medium
Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
Changed-By: Drew Parsons <dparsons@debian.org>
Closes: 1139604
Changes:
 h5py (3.16.0-4) unstable; urgency=medium
 .
   [ Gilles Filippini ]
   * Fix FTBFS against HDF5 2.1.0. Closes: #1139604
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