Scanning dependencies of target qtcurve-module [ 33%] Building CXX object style/CMakeFiles/qtcurve-module.dir/qtcurve.cpp.o [ 66%] Linking CXX shared module qtcurve.so CMakeFiles/qtcurve-module.dir/qtcurve.cpp.o: In function `QtCurveStyle::QtCurveStyle()': qtcurve.cpp:(.text+0x1039a): undefined reference to `ShortcutHandler::ShortcutHandler(TQObject*)' CMakeFiles/qtcurve-module.dir/qtcurve.cpp.o: In function `QtCurveStyle::styleHint(TQStyle::StyleHint, TQStyleControlElementData const&, TQStyle::ControlElementFlags, TQStyleOption const&, TQStyleHintReturn*, TQWidget const*) const': qtcurve.cpp:(.text+0x38acf): undefined reference to `ShortcutHandler::showShortcut(TQWidget const*) const' collect2: error: ld returned 1 exit status style/CMakeFiles/qtcurve-module.dir/build.make:100: recipe for target 'style/qtcurve.so' failed make[2]: *** [style/qtcurve.so] Error 1 CMakeFiles/Makefile2:85: recipe for target 'style/CMakeFiles/qtcurve-module.dir/all' failed make[1]: *** [style/CMakeFiles/qtcurve-module.dir/all] Error 2 Makefile:149: recipe for target 'all' failed make: *** [all] Error 2