#1113589 tvc: FTBFS with CMake 4

#1113589#5
Date:
2025-08-31 23:06:12 UTC
From:
To:
Dear maintainer,

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

Log Summary:
-------------------------------------------------------------------------------
[...]
Package-List:
 tvc deb science optional arch=any
Checksums-Sha1:
 cd0223b1b1c96a2cc5a25fbc64e4e36a00347788 744668 tvc_5.0.3+git20151221.80e144e+dfsg.orig.tar.xz
 7d0306db9bc6dc0e7cd4dede9e0a4fc26451cb66 9800 tvc_5.0.3+git20151221.80e144e+dfsg-5.debian.tar.xz
Checksums-Sha256:
 3339f118d2fe983bc028630d5bf5238b6e91b70a85e8046a742588a6c342740c 744668 tvc_5.0.3+git20151221.80e144e+dfsg.orig.tar.xz
 ea878d69c94a1606583404cf23717d6a1dcc537bc4e6bd2c559ad2650939a52f 9800 tvc_5.0.3+git20151221.80e144e+dfsg-5.debian.tar.xz
Files:
 68b468ca5054fb3260ad9de40131b632 744668 tvc_5.0.3+git20151221.80e144e+dfsg.orig.tar.xz
 57be1c85cdcb34a4bc11e0493cbe5570 9800 tvc_5.0.3+git20151221.80e144e+dfsg-5.debian.tar.xz
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dpkg-source: warning: cannot verify inline signature for ./tvc_5.0.3+git20151221.80e144e+dfsg-5.dsc: no acceptable signature found
dpkg-source: info: extracting tvc in /build/reproducible-path/tvc-5.0.3+git20151221.80e144e+dfsg
dpkg-source: info: unpacking tvc_5.0.3+git20151221.80e144e+dfsg.orig.tar.xz
dpkg-source: info: unpacking tvc_5.0.3+git20151221.80e144e+dfsg-5.debian.tar.xz
dpkg-source: info: using patch list from debian/patches/series
dpkg-source: info: applying cmake.patch
dpkg-source: info: applying bamtools.patch
dpkg-source: info: applying help.patch
dpkg-source: info: applying hurd.patch
dpkg-source: info: applying sse.patch
dpkg-source: info: applying use_debian_packaged_smithwaterman.patch
dpkg-source: info: applying python3.patch
dpkg-source: info: applying gcc11.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 tvc
dpkg-buildpackage: info: source version 5.0.3+git20151221.80e144e+dfsg-5
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Mohammed Bilal <mdbilal@disroot.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.
------------------------------------------------------------------------------- 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/2412958/ 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/155067/ 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
#1113589#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