#1113456 rang: FTBFS with CMake 4

#1113456#5
Date:
2025-08-31 23:03:43 UTC
From:
To:
Dear maintainer,

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

Log Summary:
-------------------------------------------------------------------------------
[...]
Hash: SHA256

Format: 3.0 (quilt)
Source: rang
Binary: librang-dev
Architecture: any
Version: 3.2.0-1
Maintainer: Wookey <wookey@debian.org>
Homepage: https://github.com/agauniyal/rang
Standards-Version: 4.5.0
Build-Depends: cmake, debhelper-compat (= 13)
Package-List:
 librang-dev deb libs optional arch=any
Checksums-Sha1:
 5b692db9b046e9e0108d4c8da9287fad76f46747 13601 rang_3.2.0.orig.tar.gz
 dc564dc87e78cdce226a10b7096c9870b934ffd4 2220 rang_3.2.0-1.debian.tar.xz
Checksums-Sha256:
 8b42d9c33a6529a6c283a4f4c73c26326561ccc67fbb3e6a3225edd688b39973 13601 rang_3.2.0.orig.tar.gz
 94ce7fac9995f2892dc86b6778230e1632cf7ecd7bf476b49516644abb629e9f 2220 rang_3.2.0-1.debian.tar.xz
Files:
 dd0c7040dabfb4414984b0703f059c2d 13601 rang_3.2.0.orig.tar.gz
 994b6631c1b91e7a1302ec4310c754bc 2220 rang_3.2.0-1.debian.tar.xz
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dpkg-source: warning: cannot verify inline signature for ./rang_3.2.0-1.dsc: no acceptable signature found
dpkg-source: info: extracting rang in /build/reproducible-path/rang-3.2.0
dpkg-source: info: unpacking rang_3.2.0.orig.tar.gz
dpkg-source: info: unpacking rang_3.2.0-1.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 rang
dpkg-buildpackage: info: source version 3.2.0-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Wookey <wookey@debian.org>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture arm64
 debian/rules clean
dh clean
   dh_clean
	rm -f debian/debhelper-build-stamp
	rm -rf debian/.debhelper/
	rm -f -- debian/librang-dev.substvars debian/files
	rm -fr -- debian/librang-dev/ debian/tmp/
	find .  \( \( \
		\( -path .\*/.git -o -path .\*/.svn -o -path .\*/.bzr -o -path .\*/.hg -o -path .\*/CVS -o -path .\*/.pc -o -path .\*/_darcs \) -prune -o -type f -a \
	        \( -name '#*#' -o -name '.*~' -o -name '*~' -o -name DEADJOE \
		 -o -name '*.orig' -o -name '*.rej' -o -name '*.bak' \
		 -o -name '.*.orig' -o -name .*.rej -o -name '.SUMS' \
		 -o -name TAGS -o \( -path '*/.deps/*' -a -name '*.P' \) \
		\) -exec rm -f {} + \) -o \
		\( -type d -a \( -name autom4te.cache -o -name __pycache__ \) -prune -exec rm -rf {} + \) \)
 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.
------------------------------------------------------------------------------- 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/2409874/ 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/154705/ 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
#1113456#12
Date:
2025-09-01 11:52:29 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