Unsolved Qt 5.13.1 QNX Build fails on Windows

[shanavascruise]

When building Qt 5.13.1 on Windows for QNX using the configure option configure -prefix install -xplatform qnx-armle-v7-qcc, I get the below error

perl C:/qtsrc/qtbase/mkspecs/features/data/unix/findclasslist.pl < QtCore.version.in > QtCore.version
        'C:\qtsrc\qtbase\bin\moc.exe' -DQT_NO_USING_NAMESPACE -DQT_NO_FOREACH -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_CORE_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x050000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DPCRE2_CODE_UNIT_WIDTH=16 -D__QNXNTO__ -D__cplusplus=201103L -D__GNUC__=5 -D__GNUC_MINOR__=4 -D__GNUC_PATCHLEVEL__=0 -IC:/qtsrc/qtbase/mkspecs/qnx-armle-v7-qcc -IC:/qtsrc/qtbase/src/corelib -IC:/qtsrc/qtbase/src/corelib/global -IC:/qtsrc/qtbase/src/3rdparty/harfbuzz/src -IC:/qtsrc/qtbase/src/3rdparty/md5 -IC:/qtsrc/qtbase/src/3rdparty/md4 -IC:/qtsrc/qtbase/src/3rdparty/sha3 -IC:/qtsrc/qtbase/src/3rdparty -IC:/qtsrc/qtbase/src/3rdparty/double-conversion/include -IC:/qtsrc/qtbase/src/3rdparty/double-conversion/include/double-conversion -IC:/qtsrc/qtbase/src/3rdparty/forkfd -IC:/qtsrc/qtbase/src/3rdparty/tinycbor/src -IC:/qtsrc/qtbase/include -IC:/qtsrc/qtbase/include/QtCore -IC:/qtsrc/qtbase/include/QtCore/5.13.1 -IC:/qtsrc/qtbase/include/QtCore/5.13.1/QtCore -IC:/Users/sshaji/qnx700/target/qnx7/usr/include -IC:/Users/sshaji/qnx700/host/win64/x86_64/usr/lib/gcc/arm-unknown-nto-qnx7.0.0eabi/5.4.0/include -IC:/Users/sshaji/qnx700/target/qnx7/usr/include/c++/v1 animation/qabstractanimation.h -o .moc/moc_qabstractanimation.cpp
The filename, directory name, or volume label syntax is incorrect.
NMAKE : fatal error U1077: ''C:\qtsrc\qtbase\bin\moc.exe'' : return code '0x1'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.