On Sat, 2007-12-01 at 09:26 -0600, Tom Browder wrote: > You're getting the errors about vtable... because you have an > undefined virtual function declared in character.h. > > Getting rid of the virtual attribute eliminates those errors and > allows a successful build (and you can eliminate the virtual > destructor). > The virtual destructor is there because g++ was giving me a warning about setCurrentSprite(int), which will be implemented in classes Ally and Enemy - both descended from Character. I've commented out the virtual destructor in character.h and used your Makefile with the following output: michael@camille ourrpg $ make g++ -W -Wall -pedantic `sdl-config --cflags` -c battle.cpp character.h:8: warning: 'class Character' has virtual functions but non-virtual destructor battle.cpp: In member function 'SDL_Surface* battle::drawString(int, int, char*)': battle.cpp:72: warning: missing initializer for member 'SDL_Color::unused' g++ -W -Wall -pedantic `sdl-config --cflags` -c character.cpp character.h:8: warning: 'class Character' has virtual functions but non-virtual destructor g++ -o battle battle.o character.o `sdl-config --libs` -lSDL_image -lSDL_gfx -lSDL_ttf battle.o: In function `battle::battle()': battle.cpp:(.text+0x84b): undefined reference to `Character::Character()' battle.o: In function `battle::battle()': battle.cpp:(.text+0xc37): undefined reference to `Character::Character()' character.o: In function `Character::Character(char*, long, long)': character.cpp:(.text+0xdb): undefined reference to `vtable for Character' character.o: In function `Character::Character(char*, long, long)': character.cpp:(.text+0x12d): undefined reference to `vtable for Character' collect2: ld returned 1 exit status make: *** [battle] Error 1 > Then you can concentrate on other problems in the overall program, if any. > > I've attached a little cleaner Makefile for your consideration. > > -Tom
