Package: gnumeric
Version: 1.12.56-2
Severity: serious
User: debian-...@lists.debian.org
Usertags: time-t

Hi Dmitry,

Analysis of the archive for the 64-bit time_t transition[0][1] identifies
gnumeric as an affected package, on the basis that the headers could not be
compiled and analyzed out of the box using abi-compliance-checker[2], so we
have to assume it's affected.

However, gnumeric's shlibs file declares a dependency on a library package
name that contains no ABI information:

$ cat DEBIAN/shlibs
libspreadsheet 1.12.56 gnumeric (>= 1.12.56)
$

It is therefore not obvious that we should rename the package to
'gnumeric-t64' as part of this transition.

Looking at the archive, there are packages built from separate source
packages which depend on this library: both libgcu0v5 from
gnome-chemistry-utils, and also gir1.2-gnumeric from gnumeric source whose
only dependency on gnumeric is via the shlibs, rather than being a strict
versioned dependency.

Since there is no self-evident thing to do with the library package name
here, we will not be handling this package as part of the mass NMUs.
Instead I am filing a serious bug because partial upgrades from bookworm to
trixie on 32-bit architectures will result in ABI skew and may result in
broken behavior.

Thanks,
-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                   https://www.debian.org/
slanga...@ubuntu.com                                     vor...@debian.org

[0] https://wiki.debian.org/ReleaseGoals/64bit-time
[1] https://lists.debian.org/debian-devel/2024/01/msg00041.html
[2] 
https://adrien.dcln.fr/misc/armhf-time_t/2024-01-17/logs/gnumeric/base/log.txt

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