With QT 4.1.4:

g++ -c -pipe -O2 -march=pentium4 -pipe -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -I../lineedithistoplugin -I../treeprojetplugin -Isrc -Isrc/ui -I../build/moc -I../build/ui -o ../build/o/unix/editeur.o src/editeur.cpp
In file included from src/mainimpl.h:26,
from src/editeur.cpp:25:
../build/ui/ui_main.h: In member function `void Ui_Main::retranslateUi(QMainWindow*)':
../build/ui/ui_main.h:704: error: 'class QToolBar' has no member named 'setAccessibleName'
../build/ui/ui_main.h:705: error: 'class QToolBar' has no member named 'setAccessibleDescription'
make[1]: *** [../build/o/unix/editeur.o] Error 1
make[1]: Leaving directory `/wrk/zz/tmp/QIde-0.11/Ide'
make: *** [sub-Ide-make_default] Error 2