Hi Patrick! On Sat, Feb 14, 2026 at 01:36:09PM +0100, Patrick Franz wrote: > Source: pyqt6 > Version: 6.10.2-1 > Severity: important > Tags: ftbfs > X-Debbugs-Cc: [email protected] > > Dear maintainer, > > we are currently preparing Qt 6.10.2 in experimental and your package FTBFS > against it. > > The hopefully relevant part of the build log: > > --- > I: pybuild base:384: python3.14 /usr/bin/sip-build --verbose --no-make > --confirm-license --pep484-pyi --target-dir /usr/lib/python3/dist-packages > --build-dir /build/package/package/.pybuild/cpython3_3.14/build --qmake > /usr/lib/qt6/bin/qmake --qmake-setting 'CONFIG += nostrip' --qmake-setting > 'QMAKE_CXXFLAGS += "-g -O2 -ffile-prefix-map=/build/package/package=. > -fstack-protector-strong -fstack-clash-protection -Wformat > -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2"' > --qmake-setting 'QMAKE_LFLAGS += "-Wl,-z,relro"' > Querying qmake about your Qt installation... > /usr/lib/qt6/bin/qmake -query > This is the GPL version of PyQt 6.10.2 (licensed under the GNU General Public > License) for Python 3.14.3 on linux. > Found the license file 'pyqt-gpl.sip'. > Checking to see if the QtCore bindings can be built... > /usr/lib/qt6/bin/qmake QtCore.pro > Info: creating stash file > /build/package/package/.pybuild/cpython3_3.14/build/cfgtest_QtCore/.qmake.stash > Project ERROR: Library 'libatomic' is not defined.
This problem is caused by qt_lib_core_private.pri being moved to
qt6-base-private-dev. However this breaks build of qmake projects that do
not use anything private, when that package is not installed. Here is a very
minimal example:
# cat test.pro
QT -= gui
SOURCES = test.cpp
# cat test.cpp
int main() {
return 0;
}
# qmake6
Project ERROR: Library 'libatomic' is not defined.
QMAKE_LIBS_LIBATOMIC is defined in qt_lib_core_private.pri, but it is used
by qt_lib_core.pri which is public.
Is it possible to reconsider that change, or I should build-depend on
qt6-base-private-dev?
--
Dmitry Shachnev
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