topblock: topblock.o sphere.o $(HACK_TRACK_OBJS)
$(CC_HACK) -o $@ $@.o sphere.o $(HACK_TRACK_OBJS) $(HACK_LIBS)
-SCHOOL_OBJS=glschool.o glschool_alg.o glschool_gl.o sphere.o tube.o $(HACK_OBJS)
+SCHOOL_OBJS=glschool.o glschool_alg.o glschool_gl.o $(HACK_OBJS)
glschool: $(SCHOOL_OBJS)
$(CC_HACK) -o $@ $(SCHOOL_OBJS) $(HACK_LIBS)