#1113605 unshield: FTBFS with CMake 4

#1113605#5
Date:
2025-08-31 23:06:32 UTC
From:
To:
Dear maintainer,

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

Log Summary:
-------------------------------------------------------------------------------
[...]
Maintainer: Debian Games Team <pkg-games-devel@lists.alioth.debian.org>
Uploaders: Evgeni Golov <evgeni@debian.org>
Homepage: https://github.com/twogood/unshield/
Standards-Version: 3.9.8
Vcs-Browser: https://salsa.debian.org/games-team/unshield
Vcs-Git: https://salsa.debian.org/games-team/unshield.git
Build-Depends: debhelper-compat (= 13), zlib1g-dev (>= 1.2.1), cmake
Package-List:
 libunshield-dev deb libdevel optional arch=any
 libunshield0 deb libs optional arch=any
 unshield deb utils optional arch=any
Checksums-Sha1:
 78cc26d5bb28cadea17acc599962aaaed86ec532 67454 unshield_1.5.1.orig.tar.gz
 249e0b2ddc41c4d57aec78d42ab354f4d6eda4c6 5020 unshield_1.5.1-1.debian.tar.xz
Checksums-Sha256:
 34cd97ff1e6f764436d71676e3d6842dc7bd8e2dd5014068da5c560fe4661f60 67454 unshield_1.5.1.orig.tar.gz
 67d6616da3deb3ec229b3e0614efa4ff9d30f65a720ab710cec4fbf5719e26a3 5020 unshield_1.5.1-1.debian.tar.xz
Files:
 de85ed5c1a054ab7bf6551cac96af5b7 67454 unshield_1.5.1.orig.tar.gz
 6eb6a33d0973187662f5e8222b1012bc 5020 unshield_1.5.1-1.debian.tar.xz
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dpkg-source: warning: cannot verify inline signature for ./unshield_1.5.1-1.dsc: no acceptable signature found
dpkg-source: info: extracting unshield in /build/reproducible-path/unshield-1.5.1
dpkg-source: info: unpacking unshield_1.5.1.orig.tar.gz
dpkg-source: info: unpacking unshield_1.5.1-1.debian.tar.xz

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 unshield
dpkg-buildpackage: info: source version 1.5.1-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Alexandre Detiste <tchet@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/unshield-1.5.1'
dh_auto_configure -- -DUSE_OUR_OWN_MD5=YES
	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 -DUSE_OUR_OWN_MD5=YES ..
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.
------------------------------------------------------------------------------- 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/2413133/ 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/155095/ 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
#1113605#12
Date:
2025-09-01 11:52:42 UTC
From:
To:
I have downgraded the bug to non-RC severity temporarily and reverted
CMake in unstable to version 3.31.6. I plan to re-upgrade in about a
month's time. I realize that despite my April announcement, the upload
to unstable came rather surprising, and I don't want to cause
unnecessary pain.

Also, the build log URL has an unfortunate mistake. The correct URL
should include the workspace, i.e.,

https://debusine.debian.net/debian/developers/artifact/XXXX

CMake 4 will also be available in experimental again, so it can be
used to verify that the bug is fixed.

Cheers
Timo