Source: musescore
Version: 3.2.3+dfsg1-4
Severity: serious
Justification: FTBFS on amd64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20200709 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.

Relevant part (hopefully):
> cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/mscore && /usr/bin/c++  
> -DQT_CONCURRENT_LIB -DQT_CORE_LIB -DQT_GUI_LIB -DQT_HELP_LIB -DQT_NETWORK_LIB 
> -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_PRINTSUPPORT_LIB -DQT_QMLMODELS_LIB 
> -DQT_QML_LIB -DQT_QUICKWIDGETS_LIB -DQT_QUICK_LIB -DQT_SQL_LIB -DQT_SVG_LIB 
> -DQT_TESTCASE_BUILDDIR=\"/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu\" 
> -DQT_TESTLIB_LIB -DQT_WIDGETS_LIB -DQT_XMLPATTERNS_LIB -DQT_XML_LIB 
> -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/mscore -I/<<PKGBUILDDIR>>/mscore 
> -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/mscore/mscore_autogen/include 
> -I/<<PKGBUILDDIR>> -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu 
> -I/usr/include/freetype2 -I/usr/include/poppler -I/usr/include/poppler/qt5 
> -I/<<PKGBUILDDIR>>/thirdparty -I/<<PKGBUILDDIR>>/singleapp/src -isystem 
> /usr/include/x86_64-linux-gnu/qt5 -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtCore -isystem 
> /usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtNetwork -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtTest -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtQml -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtQuick -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtQmlModels -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtQuickWidgets -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtWidgets -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtXml -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtXmlPatterns -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtSvg -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtSql -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtPrintSupport -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtConcurrent -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtOpenGL -isystem 
> /usr/include/x86_64-linux-gnu/qt5/QtHelp  -g -O2 
> -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat 
> -Werror=format-security  -Wdate-time -D_FORTIFY_SOURCE=2 -DQT_NO_DEBUG 
> -DNDEBUG -DMSCORE_NO_UPDATE_CHECKER -I/<<PKGBUILDDIR>>/debian/q-include 
> -std=gnu++11 -fPIC   -include /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/all.h -g 
> -Wall -Wno-overloaded-virtual -Winvalid-pch -fPIC -o 
> CMakeFiles/mscore.dir/musescore.cpp.o -c /<<PKGBUILDDIR>>/mscore/musescore.cpp
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:19:
> /<<PKGBUILDDIR>>/mscore/musescore.h: In constructor 
> ‘Ms::LanguageItem::LanguageItem(QString, QString)’:
> /<<PKGBUILDDIR>>/mscore/musescore.h:138:33: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>   138 |             handbook = QString::null;
>       |                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:19:
> /<<PKGBUILDDIR>>/mscore/musescore.h:138:33: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>   138 |             handbook = QString::null;
>       |                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp: In member function ‘bool 
> Ms::MuseScore::readLanguages(const QString&)’:
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:4021:76: warning: ‘QString& 
> QString::sprintf(const char*, ...)’ is deprecated: Use asprintf(), arg() or 
> QTextStream instead [-Wdeprecated-declarations]
>  4021 |                    qPrintable(qf.fileName()), line, column, 
> qPrintable(err));
>       |                                                                       
>      ^
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:382:14: note: declared here
>   382 |     QString &sprintf(const char *format, ...) 
> Q_ATTRIBUTE_FORMAT_PRINTF(2, 3);
>       |              ^~~~~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:4025:29: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  4025 |                    QString::null, QWidget::tr("Quit"), QString::null, 
> 0, 1);
>       |                             ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:4025:29: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  4025 |                    QString::null, QWidget::tr("Quit"), QString::null, 
> 0, 1);
>       |                             ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:4025:65: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  4025 |                    QString::null, QWidget::tr("Quit"), QString::null, 
> 0, 1);
>       |                                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:4025:65: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  4025 |                    QString::null, QWidget::tr("Quit"), QString::null, 
> 0, 1);
>       |                                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp: In function ‘QRectF 
> Ms::drawHandle(QPainter&, const QPointF&, bool)’:
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:5688:66: warning: ‘const QMatrix& 
> QPainter::matrix() const’ is deprecated: Use transform() instead 
> [-Wdeprecated-declarations]
>  5688 |       p.setPen(QPen(QColor(MScore::selectColor[0]), 
> 2.0/p.matrix().m11()));
>       |                                                                  ^
> In file included from 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpaintengine.h:47,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:68,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpainter.h:244:20: note: declared here
>   244 |     const QMatrix &matrix() const;
>       |                    ^~~~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:5693:32: warning: ‘const QMatrix& 
> QPainter::matrix() const’ is deprecated: Use transform() instead 
> [-Wdeprecated-declarations]
>  5693 |       qreal w = 8.0 / p.matrix().m11();
>       |                                ^
> In file included from 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpaintengine.h:47,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:68,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpainter.h:244:20: note: declared here
>   244 |     const QMatrix &matrix() const;
>       |                    ^~~~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:5694:32: warning: ‘const QMatrix& 
> QPainter::matrix() const’ is deprecated: Use transform() instead 
> [-Wdeprecated-declarations]
>  5694 |       qreal h = 8.0 / p.matrix().m22();
>       |                                ^
> In file included from 
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpaintengine.h:47,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:68,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtGui/qpainter.h:244:20: note: declared here
>   244 |     const QMatrix &matrix() const;
>       |                    ^~~~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp: In member function ‘bool 
> Ms::MuseScore::saveMp3(Ms::Score*, const QString&)’:
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6816:49: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6816 |                                        QString::null, QString::null);
>       |                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6816:49: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6816 |                                        QString::null, QString::null);
>       |                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6816:64: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6816 |                                        QString::null, QString::null);
>       |                                                                ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6816:64: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6816 |                                        QString::null, QString::null);
>       |                                                                ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp: In member function ‘bool 
> Ms::MuseScore::saveMp3(Ms::Score*, QIODevice*, bool&)’:
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6844:41: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6844 |                                QString::null, QString::null);
>       |                                         ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6844:41: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6844 |                                QString::null, QString::null);
>       |                                         ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6844:56: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6844 |                                QString::null, QString::null);
>       |                                                        ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6844:56: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6844 |                                QString::null, QString::null);
>       |                                                        ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6856:41: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6856 |                                QString::null, QString::null);
>       |                                         ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6856:41: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6856 |                                QString::null, QString::null);
>       |                                         ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6856:56: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6856 |                                QString::null, QString::null);
>       |                                                        ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6856:56: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6856 |                                QString::null, QString::null);
>       |                                                        ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6881:31: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6881 |                      QString::null, QString::null);
>       |                               ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6881:31: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6881 |                      QString::null, QString::null);
>       |                               ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6881:46: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6881 |                      QString::null, QString::null);
>       |                                              ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:6881:46: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  6881 |                      QString::null, QString::null);
>       |                                              ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7048:49: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  7048 |                                        QString::null, QString::null);
>       |                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7048:49: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  7048 |                                        QString::null, QString::null);
>       |                                                 ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7048:64: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  7048 |                                        QString::null, QString::null);
>       |                                                                ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7048:64: warning: ‘QString::null’ is 
> deprecated: use QString() [-Wdeprecated-declarations]
>  7048 |                                        QString::null, QString::null);
>       |                                                                ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:47,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:913:23: note: declared here
>   913 |     static const Null null;
>       |                       ^~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Save(QDataStream&, const void*) [with T = Ms::SessionStart; bool 
> Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::SessionStart]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7188:68:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:818:16: error: ambiguous 
> overload for ‘operator<<’ (operand types are ‘QDataStream’ and ‘const 
> Ms::SessionStart’)
>   818 |         stream << *static_cast<const T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:389:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator<<(QDataStream&, const T&) [with T = 
> Ms::SessionStart; typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type = QDataStream&]’
>   389 | operator<<(QDataStream &s, const T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:376:21: note: candidate: ‘QDataStream& 
> Ms::operator<<(QDataStream&, const T&) [with T = Ms::SessionStart; typename 
> std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   376 | inline QDataStream &operator<<(QDataStream &out, const T &val)
>       |                     ^~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Load(QDataStream&, void*) [with T = Ms::SessionStart; bool 
> Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::SessionStart]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7188:68:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:823:16: error: ambiguous 
> overload for ‘operator>>’ (operand types are ‘QDataStream’ and 
> ‘Ms::SessionStart’)
>   823 |         stream >> *static_cast<T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:394:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator>>(QDataStream&, T&) [with T = Ms::SessionStart; 
> typename std::enable_if<std::is_enum<_Tp>::value, QDataStream&>::type = 
> QDataStream&]’
>   394 | operator>>(QDataStream &s, T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:382:21: note: candidate: ‘QDataStream& 
> Ms::operator>>(QDataStream&, T&) [with T = Ms::SessionStart; typename 
> std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   382 | inline QDataStream &operator>>(QDataStream &in, T &val)
>       |                     ^~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Save(QDataStream&, const void*) [with T = 
> Ms::MusicxmlExportBreaks; bool Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::MusicxmlExportBreaks]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7189:84:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:818:16: error: ambiguous 
> overload for ‘operator<<’ (operand types are ‘QDataStream’ and ‘const 
> Ms::MusicxmlExportBreaks’)
>   818 |         stream << *static_cast<const T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:389:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator<<(QDataStream&, const T&) [with T = 
> Ms::MusicxmlExportBreaks; typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type = QDataStream&]’
>   389 | operator<<(QDataStream &s, const T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:376:21: note: candidate: ‘QDataStream& 
> Ms::operator<<(QDataStream&, const T&) [with T = Ms::MusicxmlExportBreaks; 
> typename std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   376 | inline QDataStream &operator<<(QDataStream &out, const T &val)
>       |                     ^~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Load(QDataStream&, void*) [with T = Ms::MusicxmlExportBreaks; bool 
> Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::MusicxmlExportBreaks]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7189:84:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:823:16: error: ambiguous 
> overload for ‘operator>>’ (operand types are ‘QDataStream’ and 
> ‘Ms::MusicxmlExportBreaks’)
>   823 |         stream >> *static_cast<T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:394:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator>>(QDataStream&, T&) [with T = 
> Ms::MusicxmlExportBreaks; typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type = QDataStream&]’
>   394 | operator>>(QDataStream &s, T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:382:21: note: candidate: ‘QDataStream& 
> Ms::operator>>(QDataStream&, T&) [with T = Ms::MusicxmlExportBreaks; typename 
> std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   382 | inline QDataStream &operator>>(QDataStream &in, T &val)
>       |                     ^~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Save(QDataStream&, const void*) [with T = Ms::MuseScoreStyleType; 
> bool Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::MuseScoreStyleType]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7190:80:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:818:16: error: ambiguous 
> overload for ‘operator<<’ (operand types are ‘QDataStream’ and ‘const 
> Ms::MuseScoreStyleType’)
>   818 |         stream << *static_cast<const T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:389:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator<<(QDataStream&, const T&) [with T = 
> Ms::MuseScoreStyleType; typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type = QDataStream&]’
>   389 | operator<<(QDataStream &s, const T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:376:21: note: candidate: ‘QDataStream& 
> Ms::operator<<(QDataStream&, const T&) [with T = Ms::MuseScoreStyleType; 
> typename std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   376 | inline QDataStream &operator<<(QDataStream &out, const T &val)
>       |                     ^~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:54,
>                  from 
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractanimation.h:43,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:6,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h: In instantiation of 
> ‘static void QtMetaTypePrivate::QMetaTypeFunctionHelper<T, 
> Accepted>::Load(QDataStream&, void*) [with T = Ms::MuseScoreStyleType; bool 
> Accepted = true]’:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:1874:39:   required from 
> ‘void qRegisterMetaTypeStreamOperators(const char*, T*) [with T = 
> Ms::MuseScoreStyleType]’
> /<<PKGBUILDDIR>>/mscore/musescore.cpp:7190:80:   required from here
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:823:16: error: ambiguous 
> overload for ‘operator>>’ (operand types are ‘QDataStream’ and 
> ‘Ms::MuseScoreStyleType’)
>   823 |         stream >> *static_cast<T*>(t);
>       |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
> In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtCore:60,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGuiDepends:3,
>                  from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:3,
>                  from all.h:62:
> /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatastream.h:394:1: note: 
> candidate: ‘typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type& operator>>(QDataStream&, T&) [with T = 
> Ms::MuseScoreStyleType; typename std::enable_if<std::is_enum<_Tp>::value, 
> QDataStream&>::type = QDataStream&]’
>   394 | operator>>(QDataStream &s, T &t)
>       | ^~~~~~~~
> In file included from /<<PKGBUILDDIR>>/mscore/musescore.cpp:24:
> /<<PKGBUILDDIR>>/mscore/preferences.h:382:21: note: candidate: ‘QDataStream& 
> Ms::operator>>(QDataStream&, T&) [with T = Ms::MuseScoreStyleType; typename 
> std::enable_if<std::is_enum<_Tp>::value>::type* <anonymous> = 0]’
>   382 | inline QDataStream &operator>>(QDataStream &in, T &val)
>       |                     ^~~~~~~~
> make[4]: *** [mscore/CMakeFiles/mscore.dir/build.make:1301: 
> mscore/CMakeFiles/mscore.dir/musescore.cpp.o] Error 1

The full build log is available from:
   http://qa-logs.debian.net/2020/07/09/musescore_3.2.3+dfsg1-4_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.

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