Bug#1113498: shotcut: FTBFS with CMake 4

To: maintonly@bugs.debian.org
Subject: Bug#1113498: shotcut: FTBFS with CMake 4
From: roehling@debian.org
Date: Mon, 01 Sep 2025 01:04:32 +0200
Message-id: <[🔎] 10952987e3e9178b10eaa8563523221d@debian.org>
Reply-to: roehling@debian.org, 1113498-maintonly@bugs.debian.org
Source: shotcut
Version: 25.03.29+ds-1
Severity: serious
User: cmake@packages.debian.org
Usertags: cmake-4
Tags: ftbfs, forky, sid

Dear maintainer,

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

Log Summary:
-------------------------------------------------------------------------------
[...]
QT_FEATURE_textmarkdownwriter:INTERNAL=ON
//Qt feature: textodfwriter (from target Qt6::Gui)
QT_FEATURE_textodfwriter:INTERNAL=ON
//Qt feature: thread (from target Qt6::Core)
QT_FEATURE_thread:INTERNAL=ON
//Qt feature: threadsafe_cloexec (from target Qt6::Core)
QT_FEATURE_threadsafe_cloexec:INTERNAL=ON
//Qt feature: timezone (from target Qt6::Core)
QT_FEATURE_timezone:INTERNAL=ON
//Qt feature: timezone_locale (from target Qt6::Core)
QT_FEATURE_timezone_locale:INTERNAL=ON
//Qt feature: toolbar (from target Qt6::Widgets)
QT_FEATURE_toolbar:INTERNAL=ON
//Qt feature: toolbox (from target Qt6::Widgets)
QT_FEATURE_toolbox:INTERNAL=ON
//Qt feature: toolbutton (from target Qt6::Widgets)
QT_FEATURE_toolbutton:INTERNAL=ON
//Qt feature: tooltip (from target Qt6::Widgets)
QT_FEATURE_tooltip:INTERNAL=ON
//Qt feature: topleveldomain (from target Qt6::Network)
QT_FEATURE_topleveldomain:INTERNAL=ON
//Qt feature: translation (from target Qt6::Core)
QT_FEATURE_translation:INTERNAL=ON
//Qt feature: transposeproxymodel (from target Qt6::Core)
QT_FEATURE_transposeproxymodel:INTERNAL=ON
//Qt feature: treeview (from target Qt6::Widgets)
QT_FEATURE_treeview:INTERNAL=ON
//Qt feature: treewidget (from target Qt6::Widgets)
QT_FEATURE_treewidget:INTERNAL=ON
//Qt feature: trivial_auto_var_init_pattern (from target Qt6::Core)
QT_FEATURE_trivial_auto_var_init_pattern:INTERNAL=ON
//Qt feature: tslib (from target Qt6::Gui)
QT_FEATURE_tslib:INTERNAL=ON
//Qt feature: tuiotouch (from target Qt6::Gui)
QT_FEATURE_tuiotouch:INTERNAL=ON
//Qt feature: udpsocket (from target Qt6::Network)
QT_FEATURE_udpsocket:INTERNAL=ON
//Qt feature: undocommand (from target Qt6::Gui)
QT_FEATURE_undocommand:INTERNAL=ON
//Qt feature: undogroup (from target Qt6::Gui)
QT_FEATURE_undogroup:INTERNAL=ON
//Qt feature: undostack (from target Qt6::Gui)
QT_FEATURE_undostack:INTERNAL=ON
//Qt feature: undoview (from target Qt6::Widgets)
QT_FEATURE_undoview:INTERNAL=ON
//Qt feature: use_bfd_linker (from target Qt6::Core)
QT_FEATURE_use_bfd_linker:INTERNAL=OFF
//Qt feature: use_gold_linker (from target Qt6::Core)
QT_FEATURE_use_gold_linker:INTERNAL=OFF
//Qt feature: use_lld_linker (from target Qt6::Core)
QT_FEATURE_use_lld_linker:INTERNAL=OFF
//Qt feature: use_mold_linker (from target Qt6::Core)
QT_FEATURE_use_mold_linker:INTERNAL=OFF
//Qt feature: vaapi (from target Qt6::Multimedia)
QT_FEATURE_vaapi:INTERNAL=ON
//Qt feature: vaes (from target Qt6::Core)
QT_FEATURE_vaes:INTERNAL=OFF
//Qt feature: validator (from target Qt6::Gui)
QT_FEATURE_validator:INTERNAL=ON
//Qt feature: version_tagging (from target Qt6::Core)
QT_FEATURE_version_tagging:INTERNAL=ON
//Qt feature: videotoolbox (from target Qt6::Multimedia)
QT_FEATURE_videotoolbox:INTERNAL=OFF
//Qt feature: vkgen (from target Qt6::Gui)
QT_FEATURE_vkgen:INTERNAL=ON
//Qt feature: vkkhrdisplay (from target Qt6::Gui)
QT_FEATURE_vkkhrdisplay:INTERNAL=ON
//Qt feature: vnc (from target Qt6::Gui)
QT_FEATURE_vnc:INTERNAL=ON
//Qt feature: vsp2 (from target Qt6::Gui)
QT_FEATURE_vsp2:INTERNAL=OFF
//Qt feature: vulkan (from target Qt6::Gui)
QT_FEATURE_vulkan:INTERNAL=ON
//Qt feature: wasm (from target Qt6::Multimedia)
QT_FEATURE_wasm:INTERNAL=OFF
//Qt feature: wasm_exceptions (from target Qt6::Core)
QT_FEATURE_wasm_exceptions:INTERNAL=OFF
//Qt feature: wasm_simd128 (from target Qt6::Core)
QT_FEATURE_wasm_simd128:INTERNAL=OFF
//Qt feature: wayland (from target Qt6::Gui)
QT_FEATURE_wayland:INTERNAL=ON
//Qt feature: whatsthis (from target Qt6::Gui)
QT_FEATURE_whatsthis:INTERNAL=ON
//Qt feature: wheelevent (from target Qt6::Gui)
QT_FEATURE_wheelevent:INTERNAL=ON
//Qt feature: widgets (from target Qt6::Core)
QT_FEATURE_widgets:INTERNAL=ON
//Qt feature: widgettextcontrol (from target Qt6::Widgets)
QT_FEATURE_widgettextcontrol:INTERNAL=ON
//Qt feature: wizard (from target Qt6::Widgets)
QT_FEATURE_wizard:INTERNAL=ON
//Qt feature: wmf (from target Qt6::Multimedia)
QT_FEATURE_wmf:INTERNAL=OFF
//Qt feature: wmsdk (from target Qt6::Multimedia)
QT_FEATURE_wmsdk:INTERNAL=OFF
//Qt feature: x86intrin (from target Qt6::Core)
QT_FEATURE_x86intrin:INTERNAL=OFF
//Qt feature: xcb (from target Qt6::Gui)
QT_FEATURE_xcb:INTERNAL=ON
//Qt feature: xcb_egl_plugin (from target Qt6::Gui)
QT_FEATURE_xcb_egl_plugin:INTERNAL=ON
//Qt feature: xcb_glx (from target Qt6::Gui)
QT_FEATURE_xcb_glx:INTERNAL=ON
//Qt feature: xcb_glx_plugin (from target Qt6::Gui)
QT_FEATURE_xcb_glx_plugin:INTERNAL=ON
//Qt feature: xcb_native_painting (from target Qt6::Gui)
QT_FEATURE_xcb_native_painting:INTERNAL=OFF
//Qt feature: xcb_sm (from target Qt6::Gui)
QT_FEATURE_xcb_sm:INTERNAL=ON
//Qt feature: xcb_xlib (from target Qt6::Gui)
QT_FEATURE_xcb_xlib:INTERNAL=ON
//Qt feature: xkbcommon (from target Qt6::Gui)
QT_FEATURE_xkbcommon:INTERNAL=ON
//Qt feature: xkbcommon_x11 (from target Qt6::Gui)
QT_FEATURE_xkbcommon_x11:INTERNAL=ON
//Qt feature: xlib (from target Qt6::Gui)
QT_FEATURE_xlib:INTERNAL=ON
//Qt feature: xml (from target Qt6::Core)
QT_FEATURE_xml:INTERNAL=ON
//Qt feature: xmlstream (from target Qt6::Core)
QT_FEATURE_xmlstream:INTERNAL=ON
//Qt feature: xmlstreamreader (from target Qt6::Core)
QT_FEATURE_xmlstreamreader:INTERNAL=ON
//Qt feature: xmlstreamwriter (from target Qt6::Core)
QT_FEATURE_xmlstreamwriter:INTERNAL=ON
//Qt feature: xrender (from target Qt6::Gui)
QT_FEATURE_xrender:INTERNAL=OFF
//Qt feature: zstd (from target Qt6::Core)
QT_FEATURE_zstd:INTERNAL=ON
//ADVANCED property for variable: Vulkan_GLSLANG_VALIDATOR_EXECUTABLE
Vulkan_GLSLANG_VALIDATOR_EXECUTABLE-ADVANCED:INTERNAL=1
//ADVANCED property for variable: Vulkan_GLSLC_EXECUTABLE
Vulkan_GLSLC_EXECUTABLE-ADVANCED:INTERNAL=1
//ADVANCED property for variable: Vulkan_INCLUDE_DIR
Vulkan_INCLUDE_DIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: Vulkan_LIBRARY
Vulkan_LIBRARY-ADVANCED:INTERNAL=1
//CMAKE_INSTALL_PREFIX during last run
_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX:INTERNAL=/usr
__pkg_config_arguments_FFTW:INTERNAL=IMPORTED_TARGET;fftw3
__pkg_config_arguments_mlt++:INTERNAL=REQUIRED;IMPORTED_TARGET;mlt++-7>=7.22.0
__pkg_config_checked_FFTW:INTERNAL=1
__pkg_config_checked_PKG_XKB:INTERNAL=1
__pkg_config_checked_mlt++:INTERNAL=1
__qt_qml_macros_module_base_dir:INTERNAL=/usr/lib/aarch64-linux-gnu/cmake/Qt6Qml
mlt++_CFLAGS:INTERNAL=-I/usr/include/mlt-7/mlt++;-I/usr/include/mlt-7
mlt++_CFLAGS_I:INTERNAL=
mlt++_CFLAGS_OTHER:INTERNAL=
mlt++_FOUND:INTERNAL=1
mlt++_INCLUDEDIR:INTERNAL=/usr/include
mlt++_INCLUDE_DIRS:INTERNAL=/usr/include/mlt-7/mlt++;/usr/include/mlt-7
mlt++_LDFLAGS:INTERNAL=-L/usr/lib/aarch64-linux-gnu;-lmlt++-7;-lmlt-7
mlt++_LDFLAGS_OTHER:INTERNAL=
mlt++_LIBDIR:INTERNAL=/usr/lib/aarch64-linux-gnu
mlt++_LIBRARIES:INTERNAL=mlt++-7;mlt-7
mlt++_LIBRARY_DIRS:INTERNAL=/usr/lib/aarch64-linux-gnu
mlt++_LIBS:INTERNAL=
mlt++_LIBS_L:INTERNAL=
mlt++_LIBS_OTHER:INTERNAL=
mlt++_LIBS_PATHS:INTERNAL=
mlt++_MODULE_NAME:INTERNAL=mlt++-7
mlt++_PREFIX:INTERNAL=/usr
mlt++_STATIC_CFLAGS:INTERNAL=-I/usr/include/mlt-7/mlt++;-I/usr/include/mlt-7
mlt++_STATIC_CFLAGS_I:INTERNAL=
mlt++_STATIC_CFLAGS_OTHER:INTERNAL=
mlt++_STATIC_INCLUDE_DIRS:INTERNAL=/usr/include/mlt-7/mlt++;/usr/include/mlt-7
mlt++_STATIC_LDFLAGS:INTERNAL=-L/usr/lib/aarch64-linux-gnu;-lmlt++-7;-lmlt-7
mlt++_STATIC_LDFLAGS_OTHER:INTERNAL=
mlt++_STATIC_LIBDIR:INTERNAL=
mlt++_STATIC_LIBRARIES:INTERNAL=mlt++-7;mlt-7
mlt++_STATIC_LIBRARY_DIRS:INTERNAL=/usr/lib/aarch64-linux-gnu
mlt++_STATIC_LIBS:INTERNAL=
mlt++_STATIC_LIBS_L:INTERNAL=
mlt++_STATIC_LIBS_OTHER:INTERNAL=
mlt++_STATIC_LIBS_PATHS:INTERNAL=
mlt++_VERSION:INTERNAL=7.30.0
mlt++_mlt++-7_INCLUDEDIR:INTERNAL=
mlt++_mlt++-7_LIBDIR:INTERNAL=
mlt++_mlt++-7_PREFIX:INTERNAL=
mlt++_mlt++-7_VERSION:INTERNAL=
//ADVANCED property for variable: pkgcfg_lib_FFTW_fftw3
pkgcfg_lib_FFTW_fftw3-ADVANCED:INTERNAL=1
//ADVANCED property for variable: pkgcfg_lib_mlt++_mlt++-7
pkgcfg_lib_mlt++_mlt++-7-ADVANCED:INTERNAL=1
//ADVANCED property for variable: pkgcfg_lib_mlt++_mlt-7
pkgcfg_lib_mlt++_mlt-7-ADVANCED:INTERNAL=1
prefix_result:INTERNAL=/usr/lib/aarch64-linux-gnu

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: *** [debian/rules:19: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T19:54:43Z

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

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/2411068/

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/154849/

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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