Bug#1063316: xmorph: identified for time_t transition but no ABI in shlibs

[Steve Langasek]

Source: xmorph
Version: 1:20150712-4
Severity: serious
User: debian-arm at lists.debian.org
Usertags: time-t

Ciao Andrea,

Analysis of the archive for the 64-bit time_t transition[0][1] identifies
xmorph 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, libmorph's shlibs file declares a dependency on a library package
name that contains no ABI information:

$ cat DEBIAN/shlibs
libmorph 1 libmorph (>= 1:20150712)
$

It is not obvious that we should rename the package to 'libmorpht64' as part
of this transition.

Looking at the archive, there is a package that depends on this library,
xmorph.  Despite being built from the same source package, it does not have
a strict versioned dependency on libmorph but instead uses the shlibs.

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 (upgrading libmorph without also upgrading
xmorph) 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/
slangasek at ubuntu.com                                     vorlon at 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/2024-02-03T09%3A18%3A00/logs/libmorph-dev/base/log.txt
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <http://alioth-lists.debian.net/pipermail/pkg-phototools-devel/attachments/20240205/5f71bd55/attachment.sig>