unable to compile 4723

I tried to compile from scratch after a svn update

make release >4723.txt ends as follows:
_QWindowsStyle::standardPixmap(QStyle::StandardPixmap, const QStyleOption*, const QWidget*) const’:
/home/leleu/musescore/mscore/scriptgen/qtbindings/gui/qtscriptshell_QWindowsStyle.cpp:342:1: warning: control reaches end of non-void function
make[1]: *** [all] Erreur 2
make: *** [release] Erreur 2
leleu@portable-leleu:~/musescore$

_QWindowsStyle::standardPixmap(QStyle::StandardPixmap, const QStyleOption*, const QWidget*) const’:
/home/leleu/musescore/mscore/scriptgen/qtbindings/gui/qtscriptshell_QWindowsStyle.cpp:342:1: warning: control reaches end of non-void function
make[1]: *** [all] Erreur 2
make: *** [release] Erreur 2
leleu@portable-leleu:~/musescore$

I attach 4723.txt