src/.obj/dlgbpmtap.o: In function `~DlgBPMTap':
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: undefined reference to `vtable for DlgBPMTap'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: undefined reference to `vtable for DlgBPMTap'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: undefined reference to `vtable for DlgBPMTap'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: undefined reference to `vtable for DlgBPMTap'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: undefined reference to `vtable for DlgBPMTap'
src/.obj/dlgbpmtap.o:/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:66: more undefined references to `vtable for DlgBPMTap' follow
src/.obj/dlgbpmtap.o: In function `DlgBPMTap::eventFilter(QObject*, QEvent*)':
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:77: undefined reference to `DlgBPMTap::aboutToShow()'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:74: undefined reference to `DlgBPMTap::closeDlg()'
src/.obj/dlgbpmtap.o: In function `DlgBPMTap':
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:34: undefined reference to `vtable for DlgBPMTap'
/home/alb/Projects/mixxx/mixxx/src/dlgbpmtap.cpp:34: undefined reference to `vtable for DlgBPMTap'
collect2: ld returned 1 exit status
scons: *** [src/.obj/mixxx] Error 1
scons: building terminated because of errors.