Dear maintainer,

During a test rebuild for CMake 4, tint2 failed to rebuild.

Log Summary:
-------------------------------------------------------------------------------
[...]

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// Studio IDE projects all commands are done without /nologo.
CMAKE_VERBOSE_MAKEFILE:BOOL=ON

//No help, variable specified on the command line.
FETCHCONTENT_FULLY_DISCONNECTED:UNINITIALIZED=ON

//Value Computed by CMake
tint2_BINARY_DIR:STATIC=/build/reproducible-path/tint2-17.0.1/obj-aarch64-linux-gnu

//Value Computed by CMake
tint2_IS_TOP_LEVEL:STATIC=ON

//Value Computed by CMake
tint2_SOURCE_DIR:STATIC=/build/reproducible-path/tint2-17.0.1


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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 -DCMAKE_BUILD_TYPE=RelWithDebInfo .. returned exit code 1
make[1]: *** [debian/rules:11: override_dh_auto_configure] Error 2
make[1]: Leaving directory '/build/reproducible-path/tint2-17.0.1'
make: *** [debian/rules:8: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T22:19:34Z
-------------------------------------------------------------------------------

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/2412763/

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/155029/

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

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

Dear Sebastian,

I tested tint2 17.0.1-1.2 with CMake 4 and prepared a minimal Debian quilt patch for this FTBFS.

The failure is caused by the two cmake_minimum_required() declarations in:

- CMakeLists.txt
- src/tint2conf/CMakeLists.txt

Both declare a compatibility version older than the minimum supported by CMake 4. The attached patch changes these to use the min...max form:

- 2.8.5 → 2.8.5...4.1
- 2.6 → 2.6...4.1

I tested the resulting Debian package build on Debian Testing with CMake 4.3, and it completed successfully, including tint2conf.

The patch is attached as cmake4.patch.

Regards,

errorlevel1

Adding Rebecca Palmer to CC, since she prepared the 17.0.1-1.2 NMU and the previous libm fix for this package.

Regards,

errorlevel1

Adding Timo Röhling to CC, since Timo originally reported the CMake 4 FTBFS

Hi,

* errorlevel <errorlevel1@proton.me> [2026-08-12 22:59]:

This is most likely the correct solution. There is a small chance that
CMake changed its default behavior since version 2.8.5 in a way that
subtly breaks the package when patched this way, but you can just test
the patched version and see if it installs and works as expected.

Cheers
Timo

Hi,

* errorlevel <errorlevel1@proton.me> [2026-08-13 12:48]:
I'll prepare a non-maintainer upload with your patch and upload it,
then.


Cheers
Timo

Thank you very much! I really appreciate it.
All the best.

We believe that the bug you reported is fixed in the latest version of
tint2, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1113576@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Timo Röhling <roehling@debian.org> (supplier of updated tint2 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Thu, 13 Aug 2026 15:12:11 +0200
Source: tint2
Architecture: source
Version: 17.0.1-1.3
Distribution: unstable
Urgency: medium
Maintainer: Sebastian Reichel <sre@debian.org>
Changed-By: Timo Röhling <roehling@debian.org>
Closes: 1113576
Changes:
 tint2 (17.0.1-1.3) unstable; urgency=medium
 .
   * Non-maintainer upload.
   * Fix FTBFS with CMake 4.
     Thanks to errorlevel <errorlevel1@proton.me> (Closes: #1113576)
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