NFC autotests don't build with GCC 4.8

agent:2019/03/18 13:35:33 build.go:197: g++ -c -pipe -g -Og -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DSRCDIR=\"/home/qt/work/qt/qtconnectivity/tests/auto/qnearfieldtagtype1/../nfcdata\" -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NFC_LIB -DQT_TESTLIB_LIB -DQT_CORE_LIB -DQT_TESTCASE_BUILDDIR='"/home/qt/work/qt/qtconnectivity/tests/auto/qnearfieldtagtype1"' -I. -I../../../src/nfc -I/home/qt/work/install/include/QtNfc/5.12.2 -I/home/qt/work/install/include/QtNfc/5.12.2/QtNfc -I/home/qt/work/install/include -I/home/qt/work/install/include/QtNfc -I/home/qt/work/install/include/QtTest -I/home/qt/work/install/include/QtCore -I.moc -I/home/qt/work/install/mkspecs/linux-g++ -o .obj/qnearfieldmanagervirtualbase.o ../../../src/nfc/qnearfieldmanagervirtualbase.cpp
agent:2019/03/18 13:35:34 build.go:197: ../../../src/nfc/qnearfieldmanager_emulator.cpp: In constructor ‘QNearFieldManagerPrivateImpl::QNearFieldManagerPrivateImpl()’:
agent:2019/03/18 13:35:34 build.go:197: ../../../src/nfc/qnearfieldmanager_emulator.cpp:54:111: error: no matching function for call to ‘QNearFieldManagerPrivateImpl::connect(QGlobalStatic<TagActivator, (* {anonymous}::Q_QGS_globalTagActivator::innerFunction), (* & {anonymous}::Q_QGS_globalTagActivator::guard)>&, void (TagActivator::*)(TagBase*), QNearFieldManagerPrivateImpl* const, void (QNearFieldManagerPrivateImpl::*)(TagBase*))’
agent:2019/03/18 13:35:34 build.go:197:      connect(globalTagActivator, &TagActivator::tagActivated, this, &QNearFieldManagerPrivateImpl::tagActivated);
agent:2019/03/18 13:35:34 build.go:197:                                                                                                                ^
agent:2019/03/18 13:35:34 build.go:197: ../../../src/nfc/qnearfieldmanager_emulator.cpp:54:111: note: candidates are:
agent:2019/03/18 13:35:34 build.go:197: In file included from /home/qt/work/install/include/QtCore/QObject:1:0,
agent:2019/03/18 13:35:34 build.go:197:                  from ../../../src/nfc/qnearfieldmanager.h:43,
agent:2019/03/18 13:35:34 build.go:197:                  from ../../../src/nfc/qnearfieldmanager_p.h:54,
agent:2019/03/18 13:35:34 build.go:197:                  from ../../../src/nfc/qnearfieldmanagervirtualbase_p.h:54,
agent:2019/03/18 13:35:34 build.go:197:                  from ../../../src/nfc/qnearfieldmanager_emulator_p.h:54,
agent:2019/03/18 13:35:34 build.go:197:                  from ../../../src/nfc/qnearfieldmanager_emulator.cpp:40:
agent:2019/03/18 13:35:34 build.go:197: /home/qt/work/install/include/QtCore/qobject.h:208:36: note: static QMetaObject::Connection QObject::connect(const QObject*, const char*, const QObject*, const char*, Qt::ConnectionType)
agent:2019/03/18 13:35:34 build.go:197:      static QMetaObject::Connection connect(const QObject *sender, const char *signal,