https://bugs.kde.org/show_bug.cgi?id=395156

            Bug ID: 395156
           Summary: kf5-kirigami-5.47 fails to build on rhel7 (using
                    gcc-4.8.5)
           Product: frameworks-kirigami
           Version: Master
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: notm...@gmail.com
          Reporter: rdie...@gmail.com
  Target Milestone: Not decided

kirigami-5.47.0 fails to build on a rhel7.5 host using (default) gcc-4.8.5
compiler (against system Qt 5.9.2):

build log appended below.

I'm trying to build kde frameworks for epel7 addon repository for RHEL7.  I can
probably use an alternative compiler (gcc7 with devtoolset-7), but I'd rather
avoid that if possible.


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

cd /builddir/build/BUILD/kirigami2-5.47.0/x86_64-redhat-linux-gnu/src &&
/usr/bin/c++  -DKIRIGAMI_ENABLE_DBUS -DQT_CORE_LIB -DQT_GUI_LIB
-DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_NO_URL_CAST_FROM_STRING -DQT_QML_LIB
-DQT_QUICKCONTROLS2_LIB -DQT_QUICK_LIB -D_GNU_SOURCE -D_LARGEFILE64_SOURCE
-Dkirigamiplugin_EXPORTS
-I/builddir/build/BUILD/kirigami2-5.47.0/x86_64-redhat-linux-gnu/src
-I/builddir/build/BUILD/kirigami2-5.47.0/src
-I/builddir/build/BUILD/kirigami2-5.47.0/x86_64-redhat-linux-gnu/src/kirigamiplugin_autogen/include
-I/builddir/build/BUILD/kirigami2-5.47.0/src/libkirigami
-I/builddir/build/BUILD/kirigami2-5.47.0/x86_64-redhat-linux-gnu/src/libkirigami
-isystem /usr/include/qt5 -isystem /usr/include/qt5/QtCore -isystem
/usr/lib64/qt5/./mkspecs/linux-g++ -isystem /usr/include/qt5/QtQml -isystem
/usr/include/qt5/QtNetwork -isystem /usr/include/qt5/QtQuick -isystem
/usr/include/qt5/QtGui -isystem /usr/include/qt5/QtQuickControls2  -O2 -g -pipe
-Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong
--param=ssp-buffer-size=4 -grecord-gcc-switches   -m64 -mtune=generic
-std=c++0x -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 -Wvla -DNDEBUG
-fPIC -fvisibility=hidden -fvisibility-inlines-hidden   -fPIC -std=gnu++11 -o
CMakeFiles/kirigamiplugin.dir/mnemonicattached.cpp.o -c
/builddir/build/BUILD/kirigami2-5.47.0/src/mnemonicattached.cpp
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp: In member
function 'void DelegateRecycler::setSourceComponent(QQmlComponent*)':
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: error:
no matching function for call to
'DelegateRecycler::connect(QPointer<QQuickItem>&, void (QObject::*)(QObject*),
QQmlContext*&, void (QObject::*)())'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:
candidates are:
In file included from /usr/include/qt5/QtCore/qvariant.h:51:0,
                 from /usr/include/qt5/QtQml/qqmlprivate.h:57,
                 from /usr/include/qt5/QtQml/qqml.h:43,
                 from /usr/include/qt5/QtQuick/qquickitem.h:44,
                 from /usr/include/qt5/QtQuick/QQuickItem:1,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.h:23,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:21:
/usr/include/qt5/QtCore/qobject.h:213:36: note: static QMetaObject::Connection
QObject::connect(const QObject*, const char*, const QObject*, const char*,
Qt::ConnectionType)
     static QMetaObject::Connection connect(const QObject *sender, const char
*signal,
                                    ^
/usr/include/qt5/QtCore/qobject.h:213:36: note:   no known conversion for
argument 2 from 'void (QObject::*)(QObject*)' to 'const char*'
/usr/include/qt5/QtCore/qobject.h:216:36: note: static QMetaObject::Connection
QObject::connect(const QObject*, const QMetaMethod&, const QObject*, const
QMetaMethod&, Qt::ConnectionType)
     static QMetaObject::Connection connect(const QObject *sender, const
QMetaMethod &signal,
                                    ^
/usr/include/qt5/QtCore/qobject.h:216:36: note:   no known conversion for
argument 2 from 'void (QObject::*)(QObject*)' to 'const QMetaMethod&'
/usr/include/qt5/QtCore/qobject.h:468:32: note: QMetaObject::Connection
QObject::connect(const QObject*, const char*, const char*, Qt::ConnectionType)
const
 inline QMetaObject::Connection QObject::connect(const QObject *asender, const
char *asignal,
                                ^
/usr/include/qt5/QtCore/qobject.h:468:32: note:   no known conversion for
argument 2 from 'void (QObject::*)(QObject*)' to 'const char*'
/usr/include/qt5/QtCore/qobject.h:233:43: note: template<class Func1, class
Func2> static QMetaObject::Connection QObject::connect(const typename
QtPrivate::FunctionPointer<Func>::Object*, Func1, const typename
QtPrivate::FunctionPointer<Func2>::Object*, Func2, Qt::ConnectionType)
     static inline QMetaObject::Connection connect(const typename
QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal,
                                           ^
/usr/include/qt5/QtCore/qobject.h:233:43: note:   template argument
deduction/substitution failed:
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:  
mismatched types 'const typename QtPrivate::FunctionPointer<Func>::Object*' and
'QPointer<QQuickItem>'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
In file included from /usr/include/qt5/QtCore/qvariant.h:51:0,
                 from /usr/include/qt5/QtQml/qqmlprivate.h:57,
                 from /usr/include/qt5/QtQml/qqml.h:43,
                 from /usr/include/qt5/QtQuick/qquickitem.h:44,
                 from /usr/include/qt5/QtQuick/QQuickItem:1,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.h:23,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:21:
/usr/include/qt5/QtCore/qobject.h:265:13: note: template<class Func1, class
Func2> static typename
std::enable_if<((int)(QtPrivate::FunctionPointer<Func2>::ArgumentCount) >= 0),
QMetaObject::Connection>::type QObject::connect(const typename
QtPrivate::FunctionPointer<Func>::Object*, Func1, Func2)
             connect(const typename QtPrivate::FunctionPointer<Func1>::Object
*sender, Func1 signal, Func2 slot)
             ^
/usr/include/qt5/QtCore/qobject.h:265:13: note:   template argument
deduction/substitution failed:
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:  
mismatched types 'const typename QtPrivate::FunctionPointer<Func>::Object*' and
'QPointer<QQuickItem>'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
In file included from /usr/include/qt5/QtCore/qvariant.h:51:0,
                 from /usr/include/qt5/QtQml/qqmlprivate.h:57,
                 from /usr/include/qt5/QtQml/qqml.h:43,
                 from /usr/include/qt5/QtQuick/qquickitem.h:44,
                 from /usr/include/qt5/QtQuick/QQuickItem:1,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.h:23,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:21:
/usr/include/qt5/QtCore/qobject.h:274:13: note: template<class Func1, class
Func2> static typename
std::enable_if<(((int)(QtPrivate::FunctionPointer<Func2>::ArgumentCount) >= 0)
&& (! QtPrivate::FunctionPointer<Func2>::IsPointerToMemberFunction)),
QMetaObject::Connection>::type QObject::connect(const typename
QtPrivate::FunctionPointer<Func>::Object*, Func1, const QObject*, Func2,
Qt::ConnectionType)
             connect(const typename QtPrivate::FunctionPointer<Func1>::Object
*sender, Func1 signal, const QObject *context, Func2 slot,
             ^
/usr/include/qt5/QtCore/qobject.h:274:13: note:   template argument
deduction/substitution failed:
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:  
mismatched types 'const typename QtPrivate::FunctionPointer<Func>::Object*' and
'QPointer<QQuickItem>'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
In file included from /usr/include/qt5/QtCore/qvariant.h:51:0,
                 from /usr/include/qt5/QtQml/qqmlprivate.h:57,
                 from /usr/include/qt5/QtQml/qqml.h:43,
                 from /usr/include/qt5/QtQuick/qquickitem.h:44,
                 from /usr/include/qt5/QtQuick/QQuickItem:1,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.h:23,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:21:
/usr/include/qt5/QtCore/qobject.h:305:13: note: template<class Func1, class
Func2> static typename
std::enable_if<(QtPrivate::FunctionPointer<Func2>::ArgumentCount == (-1)),
QMetaObject::Connection>::type QObject::connect(const typename
QtPrivate::FunctionPointer<Func>::Object*, Func1, Func2)
             connect(const typename QtPrivate::FunctionPointer<Func1>::Object
*sender, Func1 signal, Func2 slot)
             ^
/usr/include/qt5/QtCore/qobject.h:305:13: note:   template argument
deduction/substitution failed:
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:  
mismatched types 'const typename QtPrivate::FunctionPointer<Func>::Object*' and
'QPointer<QQuickItem>'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
In file included from /usr/include/qt5/QtCore/qvariant.h:51:0,
                 from /usr/include/qt5/QtQml/qqmlprivate.h:57,
                 from /usr/include/qt5/QtQml/qqml.h:43,
                 from /usr/include/qt5/QtQuick/qquickitem.h:44,
                 from /usr/include/qt5/QtQuick/QQuickItem:1,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.h:23,
                 from
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:21:
/usr/include/qt5/QtCore/qobject.h:313:13: note: template<class Func1, class
Func2> static typename
std::enable_if<(QtPrivate::FunctionPointer<Func2>::ArgumentCount == (-1)),
QMetaObject::Connection>::type QObject::connect(const typename
QtPrivate::FunctionPointer<Func>::Object*, Func1, const QObject*, Func2,
Qt::ConnectionType)
             connect(const typename QtPrivate::FunctionPointer<Func1>::Object
*sender, Func1 signal, const QObject *context, Func2 slot,
             ^
/usr/include/qt5/QtCore/qobject.h:313:13: note:   template argument
deduction/substitution failed:
/builddir/build/BUILD/kirigami2-5.47.0/src/delegaterecycler.cpp:216:76: note:  
mismatched types 'const typename QtPrivate::FunctionPointer<Func>::Object*' and
'QPointer<QQuickItem>'
             connect(m_item, &QObject::destroyed, ctx, &QObject::deleteLater);
                                                                            ^
make[2]: *** [src/CMakeFiles/kirigamiplugin.dir/delegaterecycler.cpp.o] Error 1

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