Unable to build Qt5 from git.

[Inderplus]

I tried to build Qt from git, and is following the instructions given here http://qt-project.org/wiki/Building_Qt_5_from_Git.
But when I run ./configure, it gives me error

/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp:783:8: error: ‘QtMsgHandler’ does not name a type
/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp: In function ‘void qt_message_print(QtMsgType, const QMessageLogContext&, const QString&)’:
/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp:823:10: error: ‘msgHandler’ was not declared in this scope
/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp:829:9: error: ‘msgHandler’ was not declared in this scope
/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp: At global scope:
/home/inderpreet/qt5/qtbase/src/corelib/global/qlogging.cpp:1028:1: error: ‘QtMsgHandler’ does not name a type

I am working on Ubuntu 12.04.

Am i missing something?