When trying to build Qt Creator current master, build crashes to this error (this error started 29-Mar-2010):

g++ -c -pipe -O2 -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQTCREATOR_UTILS_LIB -DIDE_LIBRARY_BASENAME=\"lib\" -DQT_NO_CAST_TO_ASCII -DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I../../../../qt-libraries/4.7.0-tp-32bit/mkspecs/linux-g++ -I/a/b/teeharju/c/mainline/src/libs/utils -I../../../../qt-libraries/4.7.0-tp-32bit/include/QtCore -I../../../../qt-libraries/4.7.0-tp-32bit/include/QtNetwork -I../../../../qt-libraries/4.7.0-tp-32bit/include/QtGui -I../../../../qt-libraries/4.7.0-tp-32bit/include -I/a/b/teeharju/c/mainline/src/libs -I/a/b/teeharju/c/mainline/tools -I.moc/release-shared -I.uic -I. -o .obj/release-shared/wizard.o /a/b/teeharju/c/mainline/src/libs/utils/wizard.cpp
/a/b/teeharju/c/mainline/src/libs/utils/wizard.cpp: In constructor 'Utils::Wizard::Wizard(QWidget*, Qt::WindowFlags)':
/a/b/teeharju/c/mainline/src/libs/utils/wizard.cpp:302: error: 'setSideWidget' was not declared in this scope
make[3]: *** [.obj/release-shared/wizard.o] Error 1
make[3]: Leaving directory `/r/s/qtcreator/current-master-32bit-NOEL4/src/libs/utils'
make[2]: *** [sub-utils-make_default-ordered] Error 2
make[2]: Leaving directory `/r/s/qtcreator/current-master-32bit-NOEL4/src/libs'
make[1]: *** [sub-libs-make_default-ordered] Error 2
make[1]: Leaving directory `/r/s/qtcreator/current-master-32bit-NOEL4/src'
make: *** [sub-src-make_default-ordered] Error 2
teeharju@trx qtcreator/current-master-32bit-NOEL4 %