Compile error in qtscxml module

A build of Qt 5.7.0 Alpha from source failed in the qtscxml module:

make[4]: Entering directory `/home/tranter/ics/qt-everywhere-opensource-src-5.7.0/qtscxml/examples/scxml/trafficlight-widgets-static'
make[4]: *** No rule to make target `/usr/local/Qt-5.7.0/bin/qscxmlc', needed by `statemachine.h'. Stop.
make[4]: Leaving directory `/home/tranter/ics/qt-everywhere-opensource-src-5.7.0/qtscxml/examples/scxml/trafficlight-widgets-static'
make[3]: *** [sub-trafficlight-widgets-static-make_first] Error 2
make[3]: Leaving directory `/home/tranter/ics/qt-everywhere-opensource-src-5.7.0/qtscxml/examples/scxml'
make[2]: *** [sub-scxml-make_first] Error 2
make[2]: Leaving directory `/home/tranter/ics/qt-everywhere-opensource-src-5.7.0/qtscxml/examples'
make[1]: *** [sub-examples-make_first] Error 2
make[1]: Leaving directory `/home/tranter/ics/qt-everywhere-opensource-src-5.7.0/qtscxml'
make: *** [module-qtscxml-make_first] Error 2