Package: src:calindori
Version: 24.12.1-1
Severity: important
Tags: sid forky
User: debian-...@lists.debian.org
Usertags: ftbfs-gcc-15

[This bug is NOT targeted to the upcoming trixie release]

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-15/g++-15, but succeeds to build with gcc-14/g++-14. The
severity of this report will be raised before the forky release.

The full build log can be found at:
http://qa-logs.debian.net/2025/02/16/amd64exp/calindori_24.12.1-1_unstable_gccexp.log.gz
The last lines of the build log are at the end of this report.

To build with GCC 15, either set CC=gcc-15 CXX=g++-15 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

GCC 15 now defaults to the C23/C++23 standards, exposing many FTBFS.
Other Common build failures are new warnings resulting in build failures
with -Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-15/porting_to.html

[...]
      |                          ~~~~~~~~^~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp: In 
member function ‘void CalendarController::importFromBuffer(LocalCalendar*)’:
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:78:38: 
warning: ‘constexpr typename std::add_const<_Tp>::type& qAsConst(T&) [with T = 
QList<QSharedPointer<KCalendarCore::Event> >; typename 
std::add_const<_Tp>::type = const QList<QSharedPointer<KCalendarCore::Event> 
>]’ is deprecated: Use std::as_const() instead. [-Wdeprecated-declarations]
   78 |     for (const auto &event : qAsConst(m_events)) {
      |                              ~~~~~~~~^~~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/qt6/QtCore/qforeach.h:11,
                 from /usr/include/x86_64-linux-gnu/qt6/QtCore/qglobal.h:57,
                 from /usr/include/x86_64-linux-gnu/qt6/QtCore/qnamespace.h:12,
                 from /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h:12,
                 from /usr/include/x86_64-linux-gnu/qt6/QtCore/qobject.h:10,
                 from /usr/include/x86_64-linux-gnu/qt6/QtCore/QObject:1,
                 from 
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.h:10,
                 from 
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:7:
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:82:37: 
warning: ‘constexpr typename std::add_const<_Tp>::type& qAsConst(T&) [with T = 
QList<QSharedPointer<KCalendarCore::Todo> >; typename std::add_const<_Tp>::type 
= const QList<QSharedPointer<KCalendarCore::Todo> >]’ is deprecated: Use 
std::as_const() instead. [-Wdeprecated-declarations]
   82 |     for (const auto &todo : qAsConst(m_todos)) {
      |                             ~~~~~~~~^~~~~~~~~
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp: In 
member function ‘void CalendarController::importFromBuffer(const QString&)’:
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:118:38: 
warning: ‘constexpr typename std::add_const<_Tp>::type& qAsConst(T&) [with T = 
QList<QSharedPointer<KCalendarCore::Event> >; typename 
std::add_const<_Tp>::type = const QList<QSharedPointer<KCalendarCore::Event> 
>]’ is deprecated: Use std::as_const() instead. [-Wdeprecated-declarations]
  118 |     for (const auto &event : qAsConst(m_events)) {
      |                              ~~~~~~~~^~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:122:37: 
warning: ‘constexpr typename std::add_const<_Tp>::type& qAsConst(T&) [with T = 
QList<QSharedPointer<KCalendarCore::Todo> >; typename std::add_const<_Tp>::type 
= const QList<QSharedPointer<KCalendarCore::Todo> >]’ is deprecated: Use 
std::as_const() instead. [-Wdeprecated-declarations]
  122 |     for (const auto &todo : qAsConst(m_todos)) {
      |                             ~~~~~~~~^~~~~~~~~
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp: In 
member function ‘void CalendarController::upsertEvent(const QVariantMap&, const 
QVariantList&)’:
/build/reproducible-path/calindori-24.12.1/src/calendarcontroller.cpp:204:28: 
warning: ‘constexpr typename std::add_const<_Tp>::type& qAsConst(T&) [with T = 
const QList<QVariant>; typename std::add_const<_Tp>::type = const 
QList<QVariant>]’ is deprecated: Use std::as_const() instead. 
[-Wdeprecated-declarations]
  204 |     for (auto &a : qAsConst(attendeesList)) {
      |                    ~~~~~~~~^~~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/qt6/QtCore/qttypetraits.h:33:45: note: declared 
here
   33 | constexpr typename std::add_const<T>::type &qAsConst(T &t) noexcept { 
return t; }
      |                                             ^~~~~~~~
[ 94%] Linking CXX executable ../bin/calindori
cd /build/reproducible-path/calindori-24.12.1/obj-x86_64-linux-gnu/src && 
/usr/bin/cmake -E cmake_link_script CMakeFiles/calindori.dir/link.txt 
--verbose=1
/usr/bin/ld: CMakeFiles/calindori.dir/main.cpp.o:(.rodata+0x25): multiple 
definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/calindoriconfig.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/localcalendar.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/incidencealarmsmodel.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/daysofmonthmodel.cpp.o:(.rodata+0x14): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: 
CMakeFiles/calindori.dir/recurrenceperiodmodel.cpp.o:(.rodata+0x28): multiple 
definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: 
CMakeFiles/calindori.dir/daysofmonthincidencemodel.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/incidencemodel.cpp.o:(.rodata+0x11c): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/alarmchecker.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/datahandler.cpp.o:(.rodata+0x0): multiple 
definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/calendarcontroller.cpp.o:(.rodata+0x0): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
/usr/bin/ld: CMakeFiles/calindori.dir/attendeesmodel.cpp.o:(.rodata+0x1c): 
multiple definition of `QtPrivate::IsFloatType_v<_Float16>'; 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o:(.rodata+0x1ff8):
 first defined here
collect2: error: ld returned 1 exit status
/usr/bin/c++ -g -O2 
-ffile-prefix-map=/build/reproducible-path/calindori-24.12.1=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2 
-fno-operator-names -fno-exceptions -Wall -Wextra -Wcast-align 
-Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef 
-Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Werror=init-self 
-Werror=undef -Wvla -Wdate-time -Wsuggest-override -Wlogical-op -pedantic 
-Wzero-as-null-pointer-constant -Wmissing-include-dirs -Wl,--enable-new-dtags 
-Wl,-z,relro -Wl,-z,now 
CMakeFiles/calindori.dir/calindori_autogen/mocs_compilation.cpp.o 
CMakeFiles/calindori.dir/main.cpp.o 
CMakeFiles/calindori.dir/calindoriconfig.cpp.o 
CMakeFiles/calindori.dir/localcalendar.cpp.o 
CMakeFiles/calindori.dir/incidencealarmsmodel.cpp.o 
CMakeFiles/calindori.dir/daysofmonthmodel.cpp.o 
CMakeFiles/calindori.dir/recurrenceperiodmodel.cpp.o 
CMakeFiles/calindori.dir/daysofmonthincidence
 model.cpp.o CMakeFiles/calindori.dir/incidencemodel.cpp.o 
CMakeFiles/calindori.dir/alarmchecker.cpp.o 
CMakeFiles/calindori.dir/datahandler.cpp.o 
CMakeFiles/calindori.dir/calendarcontroller.cpp.o 
CMakeFiles/calindori.dir/attendeesmodel.cpp.o 
CMakeFiles/calindori.dir/qrc_resources.cpp.o -o ../bin/calindori  
/usr/lib/x86_64-linux-gnu/libKF6ConfigCore.so.6.10.0 
/usr/lib/x86_64-linux-gnu/libKF6CalendarCore.so.6.10.0 
/usr/lib/x86_64-linux-gnu/libKF6People.so.6.10.0 
/usr/lib/x86_64-linux-gnu/libKF6DBusAddons.so.6.10.0 
/usr/lib/x86_64-linux-gnu/libQt6Svg.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6QuickControls2.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Quick.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6QmlModels.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Qml.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Network.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6QmlBuiltins.a 
/usr/lib/x86_64-linux-gnu/libQt6OpenGL.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libKF6I18n.so.6.10.0 
/usr/lib/x86_64-linux-gnu/libKF6CoreAddons.so.
 6.10.0 /usr/lib/x86_64-linux-gnu/libQt6Test.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Widgets.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Gui.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libGLX.so /usr/lib/x86_64-linux-gnu/libOpenGL.so 
/usr/lib/x86_64-linux-gnu/libQt6DBus.so.6.7.2 
/usr/lib/x86_64-linux-gnu/libQt6Core.so.6.7.2
make[3]: *** [src/CMakeFiles/calindori.dir/build.make:367: bin/calindori] Error 
1
make[3]: Leaving directory 
'/build/reproducible-path/calindori-24.12.1/obj-x86_64-linux-gnu'
make[2]: *** [CMakeFiles/Makefile2:1484: src/CMakeFiles/calindori.dir/all] 
Error 2
make[2]: Leaving directory 
'/build/reproducible-path/calindori-24.12.1/obj-x86_64-linux-gnu'
make[1]: *** [Makefile:149: all] Error 2
make[1]: Leaving directory 
'/build/reproducible-path/calindori-24.12.1/obj-x86_64-linux-gnu'
dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j8 "INSTALL=install 
--strip-program=true" VERBOSE=1 returned exit code 2
make: *** [debian/rules:6: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2

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