missing type: QFlags<QDir::Filter> in method QAbstractFileEngineIterator* QAbstractFileEngineIterator::QAbstractFileEngineIterator(QFlags<QDir::Filter>, const QStringList&) (while building munged names map) /bin/sh: line 1: 29385 Abort trap

[barracuda156]

Qt4 branch build failure on macOS:

using generator "/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings-build/generator/bin/generator_smoke.so" 
parsing "/opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings/smoke/qt/qt_includes.h" 
Generating SMOKE sources... 
preparing SMOKE data [qt]
writing out smokedata.cpp [qt]
missing type: QFlags<QDir::Filter> in method QAbstractFileEngineIterator* QAbstractFileEngineIterator::QAbstractFileEngineIterator(QFlags<QDir::Filter>, const QStringList&) (while building munged names map)
/bin/sh: line 1: 29385 Abort trap              /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings-build/generator/bin/smokegen -config /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings-build/smoke/qt/config.xml -smokeconfig /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings/smoke/qt/smokeconfig.xml -d /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings-build/smoke/qt/../qtdefines -- /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_R_R-qtbase/R-qtbase/work/qtbase-438d98a9b600d1621dfbdf156d1fdd228c1a7731/tools/kdebindings/smoke/qt/qt_includes.h
make[3]: *** [smoke/qt/smokedata.cpp] Error 134
make[3]: *** Deleting file `smoke/qt/smokedata.cpp'
make[2]: *** [smoke/qt/CMakeFiles/smokeqt.dir/all] Error 2
make[1]: *** [all] Error 2
make: *** [all] Error 2

Any idea what goes wrong?