Your message dated Sat, 27 Sep 2025 15:20:32 +0000
with message-id <[email protected]>
and subject line Bug#1113355: fixed in opencv 4.10.0+dfsg-6
has caused the Debian Bug report #1113355,
regarding opencv: FTBFS with CMake 4
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1113355: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113355
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: opencv
Version: 4.10.0+dfsg-5
Severity: serious
User: [email protected]
Usertags: cmake-4
Tags: ftbfs, forky, sid
Dear maintainer,
During a test rebuild for CMake 4, opencv failed to rebuild.
Log Summary:
-------------------------------------------------------------------------------
[...]
cd .pybuild/cpython3_3.13_opencv/build &&
PKG_CONFIG=/usr/bin/pkg-config cmake -DCMAKE_INSTALL_PREFIX=/usr
-DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc
-DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON
-DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF
-DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
-DFETCHCONTENT_FULLY_DISCONNECTED=ON -DCMAKE_INSTALL_RUNSTATEDIR=/run
-DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON "-GUnix Makefiles"
-DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_INSTALL_LIBDIR=lib/aarch64-linux-gnu
-GNinja -DCMAKE_SKIP_RPATH=ON
-DOpenCV_BINARY_DIR=/build/reproducible-path/opencv-4.10.0\+dfsg/obj-aarch64-linux-gnu
-DOPENCV_PYTHON_STANDALONE_INSTALL_PATH=/usr/lib/python3.13/dist-packages
-DOPENCV_SKIP_PYTHON_LOADER=ON -DOPENCV_PYTHON_VERSION=3.13
-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.13
-DPYTHON_LIBRARY:FILEPATH=/usr/lib/python3.13/config-3.13-aarch64-linux-gnu/libpython3.13.so
-DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.13 ../../../modules/python
CMake Error at CMakeLists.txt:38 (cmake_minimum_required):
Compatibility with CMake < 3.5 has been removed from CMake.
Update the VERSION argument <min> value. Or, use the <min>...<max> syntax
to tell CMake that the project requires at least <min> but has been updated
to work with policies introduced by <max> or earlier.
Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
-- Configuring incomplete, errors occurred!
cd .pybuild/cpython3_3.13_opencv/build && tail -v -n \+0 CMakeCache.txt
==> CMakeCache.txt <==
# This is the CMakeCache file.
# For build in directory:
/build/reproducible-path/opencv-4.10.0+dfsg/.pybuild/cpython3_3.13_opencv/build
# It was generated by CMake: /usr/bin/cmake
# You can edit this file to change values found and used by cmake.
# If you do not want to change any of the values, simply exit the editor.
# If you do want to change a value, simply edit, save, and exit the editor.
# The syntax for the file is as follows:
# KEY:TYPE=VALUE
# KEY is the name of a variable in the cache.
# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!.
# VALUE is the current value for the KEY.
########################
# EXTERNAL cache entries
########################
//No help, variable specified on the command line.
CMAKE_BUILD_TYPE:UNINITIALIZED=None
//No help, variable specified on the command line.
CMAKE_EXPORT_NO_PACKAGE_REGISTRY:UNINITIALIZED=ON
//No help, variable specified on the command line.
CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY:UNINITIALIZED=ON
//Value Computed by CMake.
CMAKE_FIND_PACKAGE_REDIRECTS_DIR:STATIC=/build/reproducible-path/opencv-4.10.0+dfsg/.pybuild/cpython3_3.13_opencv/build/CMakeFiles/pkgRedirects
//No help, variable specified on the command line.
CMAKE_FIND_USE_PACKAGE_REGISTRY:UNINITIALIZED=OFF
//No help, variable specified on the command line.
CMAKE_INSTALL_LIBDIR:UNINITIALIZED=lib/aarch64-linux-gnu
//No help, variable specified on the command line.
CMAKE_INSTALL_LOCALSTATEDIR:UNINITIALIZED=/var
//No help, variable specified on the command line.
CMAKE_INSTALL_PREFIX:UNINITIALIZED=/usr
//No help, variable specified on the command line.
CMAKE_INSTALL_RUNSTATEDIR:UNINITIALIZED=/run
//No help, variable specified on the command line.
CMAKE_INSTALL_SYSCONFDIR:UNINITIALIZED=/etc
//No help, variable specified on the command line.
CMAKE_SKIP_INSTALL_ALL_DEPENDENCY:UNINITIALIZED=ON
//No help, variable specified on the command line.
CMAKE_SKIP_RPATH:UNINITIALIZED=ON
//No help, variable specified on the command line.
CMAKE_VERBOSE_MAKEFILE:UNINITIALIZED=ON
//No help, variable specified on the command line.
FETCHCONTENT_FULLY_DISCONNECTED:UNINITIALIZED=ON
//No help, variable specified on the command line.
OPENCV_PYTHON_STANDALONE_INSTALL_PATH:UNINITIALIZED=/usr/lib/python3.13/dist-packages
//No help, variable specified on the command line.
OPENCV_PYTHON_VERSION:UNINITIALIZED=3.13
//No help, variable specified on the command line.
OPENCV_SKIP_PYTHON_LOADER:UNINITIALIZED=ON
//No help, variable specified on the command line.
OpenCV_BINARY_DIR:UNINITIALIZED=/build/reproducible-path/opencv-4.10.0+dfsg/obj-aarch64-linux-gnu
//No help, variable specified on the command line.
PYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.13
//No help, variable specified on the command line.
PYTHON_INCLUDE_DIR:PATH=/usr/include/python3.13
//No help, variable specified on the command line.
PYTHON_LIBRARY:FILEPATH=/usr/lib/python3.13/config-3.13-aarch64-linux-gnu/libpython3.13.so
########################
# INTERNAL cache entries
########################
//This is the directory where this CMakeCache.txt was created
CMAKE_CACHEFILE_DIR:INTERNAL=/build/reproducible-path/opencv-4.10.0+dfsg/.pybuild/cpython3_3.13_opencv/build
//Major version of cmake used to create the current loaded cache
CMAKE_CACHE_MAJOR_VERSION:INTERNAL=4
//Minor version of cmake used to create the current loaded cache
CMAKE_CACHE_MINOR_VERSION:INTERNAL=1
//Patch version of cmake used to create the current loaded cache
CMAKE_CACHE_PATCH_VERSION:INTERNAL=1
//Path to CMake executable.
CMAKE_COMMAND:INTERNAL=/usr/bin/cmake
//Path to cpack program executable.
CMAKE_CPACK_COMMAND:INTERNAL=/usr/bin/cpack
//Path to ctest program executable.
CMAKE_CTEST_COMMAND:INTERNAL=/usr/bin/ctest
//Name of external makefile project generator.
CMAKE_EXTRA_GENERATOR:INTERNAL=
//Name of generator.
CMAKE_GENERATOR:INTERNAL=Ninja
//Generator instance identifier.
CMAKE_GENERATOR_INSTANCE:INTERNAL=
//Name of generator platform.
CMAKE_GENERATOR_PLATFORM:INTERNAL=
//Name of generator toolset.
CMAKE_GENERATOR_TOOLSET:INTERNAL=
//Source directory with the top level CMakeLists.txt file for this
// project
CMAKE_HOME_DIRECTORY:INTERNAL=/build/reproducible-path/opencv-4.10.0+dfsg/modules/python
//Name of CMakeLists files to read
CMAKE_LIST_FILE_NAME:INTERNAL=CMakeLists.txt
//number of local generators
CMAKE_NUMBER_OF_MAKEFILES:INTERNAL=1
//Path to CMake installation.
CMAKE_ROOT:INTERNAL=/usr/share/cmake-4.1
dh_auto_configure: error: cd .pybuild/cpython3_3.13_opencv/build &&
PKG_CONFIG=/usr/bin/pkg-config cmake -DCMAKE_INSTALL_PREFIX=/usr
-DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc
-DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON
-DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF
-DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
-DFETCHCONTENT_FULLY_DISCONNECTED=ON -DCMAKE_INSTALL_RUNSTATEDIR=/run
-DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON "-GUnix Makefiles"
-DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_INSTALL_LIBDIR=lib/aarch64-linux-gnu
-GNinja -DCMAKE_SKIP_RPATH=ON
-DOpenCV_BINARY_DIR=/build/reproducible-path/opencv-4.10.0\+dfsg/obj-aarch64-linux-gnu
-DOPENCV_PYTHON_STANDALONE_INSTALL_PATH=/usr/lib/python3.13/dist-packages
-DOPENCV_SKIP_PYTHON_LOADER=ON -DOPENCV_PYTHON_VERSION=3.13
-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.13
-DPYTHON_LIBRARY:FILEPATH=/usr/lib/python3.13/config-3.13-aarch64-linux-gnu/libpython3.13.so
-DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.13 ../../../modules/python
returned exit code 1
E: pybuild pybuild:389: configure: plugin custom failed with: exit code=2:
dh_auto_configure -S cmake -D modules/python -B
/build/reproducible-path/opencv-4.10.0+dfsg/.pybuild/cpython3_3.13_opencv/build
-- -GNinja -DCMAKE_SKIP_RPATH=ON
-DOpenCV_BINARY_DIR=/build/reproducible-path/opencv-4.10.0+dfsg/obj-aarch64-linux-gnu
-DOPENCV_PYTHON_STANDALONE_INSTALL_PATH=/usr/lib/python3.13/dist-packages
-DOPENCV_SKIP_PYTHON_LOADER=ON
-DOPENCV_PYTHON_VERSION=3.13
-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3.13
-DPYTHON_LIBRARY:FILEPATH=/usr/lib/python3.13/config-3.13-aarch64-linux-gnu/libpython3.13.so
-DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.13
dh_auto_configure: error: pybuild --configure -i python{version} -p 3.13
--name=opencv --system=custom --configure-args "
dh_auto_configure -S cmake -D modules/python -B {build_dir} --
-GNinja -DCMAKE_SKIP_RPATH=ON
-DOpenCV_BINARY_DIR=/build/reproducible-path/opencv-4.10.0+dfsg/obj-aarch64-linux-gnu
-DOPENCV_PYTHON_STANDALONE_INSTALL_PATH={install_dir}
-DOPENCV_SKIP_PYTHON_LOADER=ON
-DOPENCV_PYTHON_VERSION={version}
-DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/{interpreter}
-DPYTHON_LIBRARY:FILEPATH={interpreter.library_file}
-DPYTHON_INCLUDE_DIR:PATH={interpreter.include_dir}" returned exit code 13
make[1]: *** [debian/rules:139: override_dh_auto_configure] Error 25
make[1]: Leaving directory '/build/reproducible-path/opencv-4.10.0+dfsg'
make: *** [debian/rules:121: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T11:27:57Z
-------------------------------------------------------------------------------
The above is just how the build ends and not necessarily the most relevant part.
If required, the full build log is available here (for the next 30 days):
https://debusine.debian.net/artifact/2406079/
The most likely cause of build failures is the removed backwards compatibility
for
CMake versions earlier than 3.5. You can find additional information in my
debian-devel announcement:
https://lists.debian.org/debian-devel/2025/04/msg00310.html
About the archive rebuild: The build was made on debusine.debian.net,
using sbuild.
You can find the build task here:
https://debusine.debian.net/work-request/154333/
If this is really a bug in one of the build-depends, please use
reassign and affects, so that this is still visible in the BTS web
page for this package.
Thanks,
Timo
--- End Message ---
--- Begin Message ---
Source: opencv
Source-Version: 4.10.0+dfsg-6
Done: Santiago Vila <[email protected]>
We believe that the bug you reported is fixed in the latest version of
opencv, 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 [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Santiago Vila <[email protected]> (supplier of updated opencv 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 [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sat, 27 Sep 2025 16:40:00 +0200
Source: opencv
Architecture: source
Version: 4.10.0+dfsg-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Science Team
<[email protected]>
Changed-By: Santiago Vila <[email protected]>
Closes: 1113355 1116253
Changes:
opencv (4.10.0+dfsg-6) unstable; urgency=medium
.
* Team upload.
.
[ Sebastian Ramacher ]
* Fix FTBFS on ppc64el with GCC 15. Closes: #1116253.
.
[ Santiago Vila ]
* Fix build with CMake 4. Closes: #1113355.
* Drop "Rules-Requires-Root: no", no longer needed.
* Update standards-version.
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eb68573e7b2a40be1e95088a7cec0eb04c3179fd 48356
opencv_4.10.0+dfsg-6.debian.tar.xz
6138924029535c5608dcdbce1fe27b39ce9baf10 29544
opencv_4.10.0+dfsg-6_source.buildinfo
Checksums-Sha256:
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opencv_4.10.0+dfsg-6.dsc
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opencv_4.10.0+dfsg-6.debian.tar.xz
434a497f9ce992169799a0e778e181b854de03d4764a219a58ec485d042b66eb 29544
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Files:
d75bf3a58c0c7324ab32b00471e15b2b 6682 devel optional opencv_4.10.0+dfsg-6.dsc
f666bb4ec83320e18c75384d3ae701db 48356 devel optional
opencv_4.10.0+dfsg-6.debian.tar.xz
8f761cd4f25d9ab03134e3feb0adc631 29544 devel optional
opencv_4.10.0+dfsg-6_source.buildinfo
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