pinentry 0.7.6 doesn't build with Qt 4.5

make[3]: Entering directory `.../pinentry-0.7.6/qt4'                                                                                                 
g++ -DHAVE_CONFIG_H -I. -I..  -I.. -I../assuan -I../secmem  -I../pinentry -Wall -DQT_SHARED -I/usr/include/qt4 -I/usr/include/qt4/QtCore   -DQT_SHARED -I/usr/include/qt4 -
I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore   -g -O2 -g -Wall -O2 -c -o pinentrydialog.o pinentrydialog.cpp                                                                          
In file included from pinentrydialog.cpp:246:                                                                                                                                      
pinentrydialog.moc:14:2: error: #error "This file was generated using the moc from 4.4.1. It"                                                                                      
pinentrydialog.moc:15:2: error: #error "cannot be used with the include files from this version of Qt."                                                                            
pinentrydialog.moc:16:2: error: #error "(The moc has changed too much.)"                                                                                                           
make[3]: *** [pinentrydialog.o] Error 1                                                                                                                                            
make[3]: Leaving directory `.../pinentry-0.7.6/qt4'                                                                                                  
make[2]: *** [all-recursive] Error 1                                                                                                                                               
make[2]: Leaving directory `.../pinentry-0.7.6'                                                                                                      
make[1]: *** [all] Error 2                                                                                                                                                         
make[1]: Leaving directory `.../pinentry-0.7.6'                                                                                                      
make: *** [debian/stamp-makefile-build] Error 2

And there is no makefile rule to generate the moc files, which looks wrong.
Normally the .moc files are generated during the built, not shipped as part
of the source.