93%] Building CXX object 
amarok/src/CMakeFiles/amarok-shared.dir/editfilterdialog.cpp.o
Linking CXX shared library libamarok.so
CMakeFiles/amarok-shared.dir/actionclasses.cpp.o: In function 
`Amarok::Menu::helpMenu(QWidget*)':
actionclasses.cpp:(.text+0x1522): undefined reference to `Amarok::aboutData'
collect2: ld returned 1 exit status
make[2]: *** [amarok/src/libamarok.so.0.0.0] Error 1
make[1]: *** [amarok/src/CMakeFiles/amarok-shared.dir/all] Error 2
make: *** [all] Error 2

actionclasses.cpp
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.
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KPopupMenu*
Menu::helpMenu( TQWidget *tqparent ) //STATIC
{
    extern KAboutData aboutData;

    if ( s_helpMenu == 0 )
        s_helpMenu = new KHelpMenu( tqparent, &aboutData, 
Amarok::actionCollection() );

    return s_helpMenu->menu();
}
.
.
.