qrandom.cpp: undefined reference to `QDeadlineTimer::current(Qt::TimerType)' and `QDeadlineTimer::deadline() const'

...
/home/qt/work/b2qt/toolchain/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ -c -pipe -march=armv7-a -mfpu=neon -DLINUX=1 -DEGL_API_FB=1 -mfloat-abi=hard --sysroot=/home/qt/work/b2qt/toolchain/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi -O2 -std=c++1z -fno-exceptions -Wall -W -Wvla -Wdate-time -D_REENTRANT -fPIC -DQML_RUNTIME_TESTING -DQT_QML_DEBUG_NO_WARNING -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_USE_QSTRINGBUILDER -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_QUICK_LIB -DQT_QML_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I. -I../../include/QtQuick/5.10.0 -I../../include/QtQuick/5.10.0/QtQuick -I../../include -I../../include/QtQuick -I../../include/QtQml/5.10.0 -I../../include/QtQml/5.10.0/QtQml -I../../include/QtQml -I/home/qt/work/install/include/QtGui/5.10.0 -I/home/qt/work/install/include/QtGui/5.10.0/QtGui -I/home/qt/work/install/include -I/home/qt/work/install/include/QtWidgets -I/home/qt/work/install/include/QtGui -I/home/qt/work/install/include/QtNetwork -I/home/qt/work/install/include/QtCore/5.10.0 -I/home/qt/work/install/include/QtCore/5.10.0/QtCore -I/home/qt/work/install/include/QtCore -I.moc -I/home/qt/work/install/mkspecs/devices/linux-imx6-g++ -o .obj/main.o main.cpp
/home/qt/work/install/lib/libQt5Bootstrap.a(qrandom.o): In function `fallback_fill(unsigned int*, long long)':
qrandom.cpp:(.text.unlikely._ZL13fallback_fillPjx+0x9b): undefined reference to `QDeadlineTimer::current(Qt::TimerType)'
qrandom.cpp:(.text.unlikely._ZL13fallback_fillPjx+0xb3): undefined reference to `QDeadlineTimer::deadline() const'
collect2: error: ld returned 1 exit status
Makefile:108: recipe for target '../../bin/qmlcachegen' failed
make[2]: *** [../../bin/qmlcachegen] Error 1
make[2]: Leaving directory '/home/qt/work/qt/qtdeclarative/tools/qmlcachegen'
Makefile:104: recipe for target 'sub-qmlcachegen-make_first' failed
make[1]: *** [sub-qmlcachegen-make_first] Error 2
make[1]: *** Waiting for unfinished jobs....
...