New Qt5 signal/slot syntax not working with Intel Compiler 16

The new style signal/slots seem to be broken i.c.w. the intel 16 compiler.

The issue can be observed in a.o the widgets examples shipped with qt. For example, running examples/widgets/mainwindows/dockwidgets results in the following messages:

QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QAction
QObject::connect: signal not found in QListWidget
QObject::connect: signal not found in QListWidget

Qt was configured as follows:

configure -platform linux-icc -commercial -confirm-license -c++std c++98 \
          -skip qtquickcontrols2 -skip qt3d -skip qtwayland \
          -skip qtserialbus -qt-xcb -no-pch -no-dbus

Issues QTBUG-48286 and QTBUG-40281 look related.

After some investigation, I rebuilt Qt and added the -no-reduce-relocations configuration flag. This seems to workaround the issue. Apparently, the -Bsymbolic and/or -Bsymbolic_functions flags are not added when the -no-reduce-relocations configure flag is specified.

It's not clear to me if this is a compiler issue or not. If it is, it would still be nice if the Qt configure process opts for the -no-reduce-relocations option by default for broken compilers.