Bug#1113309: nam: FTBFS with CMake 4

To: maintonly@bugs.debian.org
Subject: Bug#1113309: nam: FTBFS with CMake 4
From: roehling@debian.org
Date: Mon, 01 Sep 2025 01:01:00 +0200
Message-id: <[🔎] 60209c4e78950928a88a9db8721fa618@debian.org>
Reply-to: roehling@debian.org, 1113309-maintonly@bugs.debian.org
Source: nam
Version: 1.15-10
Severity: serious
User: cmake@packages.debian.org
Usertags: cmake-4
Tags: ftbfs, forky, sid

Dear maintainer,

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

Log Summary:
-------------------------------------------------------------------------------
[...]
nam_SOURCE_DIR:STATIC=/build/reproducible-path/nam-1.15


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CMAKE_CACHE_MAJOR_VERSION:INTERNAL=4
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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 .. returned exit code 1
make[1]: *** [debian/rules:15: override_dh_auto_configure] Error 2
make[1]: Leaving directory '/build/reproducible-path/nam-1.15'
make: *** [debian/rules:10: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T08:59:46Z

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

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/2404713/

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/154185/

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
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