[Debian-astro-maintainers] Bug#1113107: libahp-gt: FTBFS with CMake 4

Sun Aug 31 23:57:19 BST 2025

Source: libahp-gt
Version: 1.7.3-1
Severity: serious
User: cmake at packages.debian.org
Usertags: cmake-4
Tags: ftbfs, forky, sid

Dear maintainer,

During a test rebuild for CMake 4, libahp-gt failed to rebuild.

Log Summary:
-------------------------------------------------------------------------------
[...]
Hash: SHA512

Format: 3.0 (quilt)
Source: libahp-gt
Binary: libahp-gt1, libahp-gt-dev
Architecture: any
Version: 1.7.3-1
Maintainer: Debian Astronomy Team <debian-astro-maintainers at lists.alioth.debian.org>
Uploaders: Thorsten Alteholz <debian at alteholz.de>
Homepage: http://iliaplatone.com
Standards-Version: 4.7.0
Vcs-Browser: https://salsa.debian.org/debian-astro-team/libahp-gt
Vcs-Git: https://salsa.debian.org/debian-astro-team/libahp-gt.git
Testsuite: autopkgtest
Testsuite-Triggers: gcc, libc6-dev
Build-Depends: debhelper-compat (= 13), cmake (>= 2.4.7)
Package-List:
 libahp-gt-dev deb libdevel optional arch=any
 libahp-gt1 deb libs optional arch=any
Checksums-Sha1:
 6ecfb0c01ffb72e53b8506ad52ee28f0c43894ea 55631 libahp-gt_1.7.3.orig.tar.gz
 72d0d524937e48042cde57a59fffbe7b88ebb213 3740 libahp-gt_1.7.3-1.debian.tar.xz
Checksums-Sha256:
 c068767b8e93c8cf0a509b3d1361134f09286509634bfae447dfd3526f165019 55631 libahp-gt_1.7.3.orig.tar.gz
 e075960cc7272ad18a5509a42fefc8ca4fc7171cb39bbe32ffb3b53e472a0c1f 3740 libahp-gt_1.7.3-1.debian.tar.xz
Files:
 e1943ea7a1a4cd6079c75558b132a63d 55631 libahp-gt_1.7.3.orig.tar.gz
 9ce7080abf8fc6886a800f90eaf60c5f 3740 libahp-gt_1.7.3-1.debian.tar.xz

-----BEGIN PGP SIGNATURE-----
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=3qtL
-----END PGP SIGNATURE-----

dpkg-source: warning: cannot verify inline signature for ./libahp-gt_1.7.3-1.dsc: no acceptable signature found
dpkg-source: info: extracting libahp-gt in /build/reproducible-path/libahp-gt-1.7.3
dpkg-source: info: unpacking libahp-gt_1.7.3.orig.tar.gz
dpkg-source: info: unpacking libahp-gt_1.7.3-1.debian.tar.xz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying gcc.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 libahp-gt
dpkg-buildpackage: info: source version 1.7.3-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Thorsten Alteholz <debian at alteholz.de>
 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: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/libahp-gt-1.7.3/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/libahp-gt-1.7.3/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/libahp-gt-1.7.3/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/libahp-gt-1.7.3
//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:6: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T03:17:13Z

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

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/2399225/

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/153672/

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