Something

g++ -Wl,-O1 -o biblesearch main.o   -L/usr/lib/qt4 -lsword -L/usr/lib/mysql -L/usr/lib/qt4 -lQtGui -L/usr/X11R6/lib -laudio -lXt -lpng -lSM -lICE -lXi -lXrender -lXrandr -lXcursor -lfreetype -lfontconfig -lXext -lX11 -lm -lQtCore -lz -ldl -lpthread
main.o(.text+0xe): In function `Controller::Controller()':
: undefined reference to `vtable for Controller'
main.o(.text+0x2e): In function `Controller::Controller()':
: undefined reference to `vtable for Controller'
collect2: ld returned 1 exit status
make: *** [biblesearch] Error 1