Bug#1112712: autobahn-cpp: FTBFS with CMake 4

To: Debian Bug Tracking System <maintonly@bugs.debian.org>
Subject: Bug#1112712: autobahn-cpp: FTBFS with CMake 4
From: Timo Röhling <roehling@debian.org>
Date: Mon, 01 Sep 2025 00:31:30 +0200
Message-id: <[🔎] 175667949088.60101.16646487887829782970.reportbug@roehling3.cms.fkie.fraunhofer.de>
Reply-to: Timo Röhling <roehling@debian.org>, 1112712-maintonly@bugs.debian.org
Source: autobahn-cpp
Version: 17.5.1+git7cc5d37-4
Severity: serious
Tags: ftbfs
Justification: FTBFS
User: cmake@packages.debian.org
Usertags: cmake-4

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Dear maintainer,

During a test rebuild for CMake 4, autobahn-cpp failed to rebuild.

Log Summary:
- -------------------------------------------------------------------------------
[...]
Standards-Version: 4.7.0
Vcs-Browser: https://salsa.debian.org/debian/autobahn-cpp
Vcs-Git: https://salsa.debian.org/debian/autobahn-cpp.git
Build-Depends: cmake, debhelper-compat (= 13), libboost-program-options-dev, libboost-random-dev, libboost-system-dev, libboost-thread-dev, libmsgpack-cxx-dev, libssl-dev, libwebsocketpp-dev (>= 0.7)
Package-List:
 autobahn-cpp-dev deb libdevel optional arch=all
 autobahn-cpp-doc deb doc optional arch=all
Checksums-Sha1:
 46491323d21095b0f97331459aca49eb2bc7953a 63344 autobahn-cpp_17.5.1+git7cc5d37.orig.tar.xz
 27973e6704136396ecc1ae1b2d801a530eb0c44c 4312 autobahn-cpp_17.5.1+git7cc5d37-4.debian.tar.xz
Checksums-Sha256:
 6336aa68e869e32b1c2e923b0fb73a90c52bca829e4c87a6ee0fd758300b462c 63344 autobahn-cpp_17.5.1+git7cc5d37.orig.tar.xz
 8e37815acefc4e2e7ac0f4df501ec74a994e45f673172df6cd1f2eff1696bf04 4312 autobahn-cpp_17.5.1+git7cc5d37-4.debian.tar.xz
Files:
 79bc9a9467e10fdf43ea69a9268945d9 63344 autobahn-cpp_17.5.1+git7cc5d37.orig.tar.xz
 a199e345a35a0444600f19adc5380228 4312 autobahn-cpp_17.5.1+git7cc5d37-4.debian.tar.xz

- -----BEGIN PGP SIGNATURE-----
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=RJn2
- -----END PGP SIGNATURE-----

dpkg-source: warning: cannot verify inline signature for ./autobahn-cpp_17.5.1+git7cc5d37-4.dsc: no acceptable signature found
dpkg-source: info: extracting autobahn-cpp in /build/reproducible-path/autobahn-cpp-17.5.1+git7cc5d37
dpkg-source: info: unpacking autobahn-cpp_17.5.1+git7cc5d37.orig.tar.xz
dpkg-source: info: unpacking autobahn-cpp_17.5.1+git7cc5d37-4.debian.tar.xz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying include_forgotten_headers.patch
dpkg-source: info: applying 0001-Make-sure-all-used-placeholders-are-in-scope.patch

Check disk space
- ----------------

Sufficient free space for build

User Environment
- ----------------

APT_CONFIG=/var/lib/sbuild/apt.conf
HOME=/sbuild-nonexistent
LANG=C.UTF-8
LC_ALL=C.UTF-8
LOGNAME=sbuild
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
SHELL=/bin/sh
USER=sbuild

dpkg-buildpackage
- -----------------

Command: dpkg-buildpackage --sanitize-env -us -uc -b
dpkg-buildpackage: info: source package autobahn-cpp
dpkg-buildpackage: info: source version 17.5.1+git7cc5d37-4
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Petter Reinholdtsen <pere@debian.org>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture arm64
 debian/rules clean
dh clean
   dh_clean
 debian/rules binary
dh binary
   dh_update_autotools_config
   dh_autoreconf
   dh_auto_configure
	cd obj-aarch64-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb 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 ..
CMake Error at CMakeLists.txt:2 (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 obj-aarch64-linux-gnu && tail -v -n \+0 CMakeCache.txt
==> CMakeCache.txt <==
# This is the CMakeCache file.
# For build in directory: /build/reproducible-path/autobahn-cpp-17.5.1+git7cc5d37/obj-aarch64-linux-gnu
# 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/autobahn-cpp-17.5.1+git7cc5d37/obj-aarch64-linux-gnu/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_VERBOSE_MAKEFILE:UNINITIALIZED=ON

//No help, variable specified on the command line.
FETCHCONTENT_FULLY_DISCONNECTED:UNINITIALIZED=ON


########################
# INTERNAL cache entries
########################

//This is the directory where this CMakeCache.txt was created
CMAKE_CACHEFILE_DIR:INTERNAL=/build/reproducible-path/autobahn-cpp-17.5.1+git7cc5d37/obj-aarch64-linux-gnu
//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=Unix Makefiles
//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/autobahn-cpp-17.5.1+git7cc5d37
//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 obj-aarch64-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb 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 .. returned exit code 1
make: *** [debian/rules:9: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
- --------------------------------------------------------------------------------
Build finished at 2025-08-29T14:06:34Z

- -------------------------------------------------------------------------------

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/2388946/

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/152390/

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


-----BEGIN PGP SIGNATURE-----
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=pW2Y
-----END PGP SIGNATURE-----
Reply to:
Prev by Date: Bug#1112706: argagg: FTBFS with CMake 4
Next by Date: Bug#1112749: aqemu: FTBFS with CMake 4
Previous by thread: Bug#1112706: argagg: FTBFS with CMake 4
Next by thread: Bug#1112749: aqemu: FTBFS with CMake 4
Index(es):
- Date
- Thread