Bug#1113176: libmusicbrainz5: FTBFS with CMake 4

To: maintonly@bugs.debian.org
Subject: Bug#1113176: libmusicbrainz5: FTBFS with CMake 4
From: roehling@debian.org
Date: Mon, 01 Sep 2025 00:58:36 +0200
Message-id: <[🔎] ec88a3a687835239f1b9da0dfb4b420f@debian.org>
Reply-to: roehling@debian.org, 1113176-maintonly@bugs.debian.org
Source: libmusicbrainz5
Version: 5.1.0+git20150707-11
Severity: serious
User: cmake@packages.debian.org
Usertags: cmake-4
Tags: ftbfs, forky, sid

Dear maintainer,

During a test rebuild for CMake 4, libmusicbrainz5 failed to rebuild.

Log Summary:
-------------------------------------------------------------------------------
[...]
Build-Depends: debhelper-compat (= 13), cmake, libneon27-gnutls-dev | libneon-dev, libxml2-dev
Build-Depends-Indep: doxygen, graphviz
Package-List:
 libmusicbrainz5-2 deb libs optional arch=any
 libmusicbrainz5-dev deb libdevel optional arch=any
 libmusicbrainz5-doc deb doc optional arch=all
 libmusicbrainz5cc2v5 deb libs optional arch=any
Checksums-Sha1:
 8ed2212dbe5ffd6c76dcdcef83f0654d1adb7284 61260 libmusicbrainz5_5.1.0+git20150707.orig.tar.xz
 349ba274795113b5f3f198e50263a4f544280ca4 8064 libmusicbrainz5_5.1.0+git20150707-11.debian.tar.xz
Checksums-Sha256:
 f6905ff1c71495defb8359281ad856d9abf5c58c06ecef523769912b60178796 61260 libmusicbrainz5_5.1.0+git20150707.orig.tar.xz
 77e396ca624c61576ab79821ac8a12641dec55cbfdfee96ed2c21c1cd0023cbe 8064 libmusicbrainz5_5.1.0+git20150707-11.debian.tar.xz
Files:
 ff2cb180678fda50242654cdeac16d9b 61260 libmusicbrainz5_5.1.0+git20150707.orig.tar.xz
 99a68783ea699668f6b8a698af9f1acb 8064 libmusicbrainz5_5.1.0+git20150707-11.debian.tar.xz

-----BEGIN PGP SIGNATURE-----

iHUEARYKAB0WIQRCYn6EHZln2oPh+pAhk2s2YA/NiQUCZm8TyQAKCRAhk2s2YA/N
id/wAP9WW31fS4dTciDmMe11cv7R5z04eT5UpHRq9OELb/buwgEA72FLqZU6Zr22
RZ9N7xjI5P1I2ifZlXp/H9RYqYuYjwo=
=JjDJ
-----END PGP SIGNATURE-----

dpkg-source: warning: cannot verify inline signature for ./libmusicbrainz5_5.1.0+git20150707-11.dsc: no acceptable signature found
dpkg-source: info: extracting libmusicbrainz5 in /build/reproducible-path/libmusicbrainz5-5.1.0+git20150707
dpkg-source: info: unpacking libmusicbrainz5_5.1.0+git20150707.orig.tar.xz
dpkg-source: info: unpacking libmusicbrainz5_5.1.0+git20150707-11.debian.tar.xz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying 0001-gcc-5.patch
dpkg-source: info: applying 0002-src-CMakelists.txt-do-not-use-wildcards-for-dependen.patch
dpkg-source: info: applying 0003-libxml-include-parser.h.patch
dpkg-source: info: applying 0004-libxml-constify-the-storage-of-xmlGetLastError.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 libmusicbrainz5
dpkg-buildpackage: info: source version 5.1.0+git20150707-11
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Sebastian Ramacher <sramacher@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
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/build/reproducible-path/libmusicbrainz5-5.1.0+git20150707'
dh_auto_configure -- \
	-DLIB_SUFFIX=/aarch64-linux-gnu
	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 -DLIB_SUFFIX=/aarch64-linux-gnu ..
CMake Error at CMakeLists.txt:1 (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/libmusicbrainz5-5.1.0+git20150707/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/libmusicbrainz5-5.1.0+git20150707/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

//No help, variable specified on the command line.
LIB_SUFFIX:UNINITIALIZED=/aarch64-linux-gnu


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

//This is the directory where this CMakeCache.txt was created
CMAKE_CACHEFILE_DIR:INTERNAL=/build/reproducible-path/libmusicbrainz5-5.1.0+git20150707/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/libmusicbrainz5-5.1.0+git20150707
//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 -DLIB_SUFFIX=/aarch64-linux-gnu .. returned exit code 1
make[1]: *** [debian/rules:9: override_dh_auto_configure] Error 2
make[1]: Leaving directory '/build/reproducible-path/libmusicbrainz5-5.1.0+git20150707'
make: *** [debian/rules:6: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T04:11:48Z

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

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/2401685/

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/153826/

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
Reply to:
Prev by Date: Bug#1113173: libmatroska: FTBFS with CMake 4
Next by Date: Bug#1113203: libsoxr: FTBFS with CMake 4
Previous by thread: Bug#1113173: libmatroska: FTBFS with CMake 4
Next by thread: Bug#1113203: libsoxr: FTBFS with CMake 4
Index(es):
- Date
- Thread